drivers/net/wireless/mwifiex/cfg80211.c

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22 #include "11n.h"
  23
  24 static char *reg_alpha2;
  25 module_param(reg_alpha2, charp, 0);
  26
  27 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  28         {
  29                 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
  30                                    BIT(NL80211_IFTYPE_P2P_GO) |
  31                                    BIT(NL80211_IFTYPE_P2P_CLIENT),
  32         },
  33         {
  34                 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
  35         },
  36 };
  37
  38 static const struct ieee80211_iface_combination
  39 mwifiex_iface_comb_ap_sta = {
  40         .limits = mwifiex_ap_sta_limits,
  41         .num_different_channels = 1,
  42         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  43         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  44         .beacon_int_infra_match = true,
  45         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  46                                 BIT(NL80211_CHAN_WIDTH_20) |
  47                                 BIT(NL80211_CHAN_WIDTH_40),
  48 };
  49
  50 static const struct ieee80211_iface_combination
  51 mwifiex_iface_comb_ap_sta_vht = {
  52         .limits = mwifiex_ap_sta_limits,
  53         .num_different_channels = 1,
  54         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  55         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  56         .beacon_int_infra_match = true,
  57         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  58                                 BIT(NL80211_CHAN_WIDTH_20) |
  59                                 BIT(NL80211_CHAN_WIDTH_40) |
  60                                 BIT(NL80211_CHAN_WIDTH_80),
  61 };
  62
  63 static const struct
  64 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  65         .limits = mwifiex_ap_sta_limits,
  66         .num_different_channels = 2,
  67         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  68         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  69         .beacon_int_infra_match = true,
  70 };
  71
  72 /*
  73  * This function maps the nl802.11 channel type into driver channel type.
  74  *
  75  * The mapping is as follows -
  76  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  77  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  78  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  79  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  80  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  81  */
  82 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  83 {
  84         switch (chan_type) {
  85         case NL80211_CHAN_NO_HT:
  86         case NL80211_CHAN_HT20:
  87                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  88         case NL80211_CHAN_HT40PLUS:
  89                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  90         case NL80211_CHAN_HT40MINUS:
  91                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  92         default:
  93                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  94         }
  95 }
  96
  97 /* This function maps IEEE HT secondary channel type to NL80211 channel type
  98  */
  99 u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
 100 {
 101         switch (second_chan_offset) {
 102         case IEEE80211_HT_PARAM_CHA_SEC_NONE:
 103                 return NL80211_CHAN_HT20;
 104         case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 105                 return NL80211_CHAN_HT40PLUS;
 106         case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
 107                 return NL80211_CHAN_HT40MINUS;
 108         default:
 109                 return NL80211_CHAN_HT20;
 110         }
 111 }
 112
 113 /*
 114  * This function checks whether WEP is set.
 115  */
 116 static int
 117 mwifiex_is_alg_wep(u32 cipher)
 118 {
 119         switch (cipher) {
 120         case WLAN_CIPHER_SUITE_WEP40:
 121         case WLAN_CIPHER_SUITE_WEP104:
 122                 return 1;
 123         default:
 124                 break;
 125         }
 126
 127         return 0;
 128 }
 129
 130 /*
 131  * This function retrieves the private structure from kernel wiphy structure.
 132  */
 133 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 134 {
 135         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 136 }
 137
 138 /*
 139  * CFG802.11 operation handler to delete a network key.
 140  */
 141 static int
 142 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 143                          u8 key_index, bool pairwise, const u8 *mac_addr)
 144 {
 145         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 146         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 147         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 148
 149         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 150                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 151                 return -EFAULT;
 152         }
 153
 154         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 155         return 0;
 156 }
 157
 158 /*
 159  * This function forms an skb for management frame.
 160  */
 161 static int
 162 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 163 {
 164         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 165         u16 pkt_len;
 166         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 167
 168         pkt_len = len + ETH_ALEN;
 169
 170         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 171                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 172         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 173
 174         memcpy(skb_push(skb, sizeof(tx_control)),
 175                &tx_control, sizeof(tx_control));
 176
 177         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 178
 179         /* Add packet data and address4 */
 180         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 181                sizeof(struct ieee80211_hdr_3addr));
 182         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 183         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 184                buf + sizeof(struct ieee80211_hdr_3addr),
 185                len - sizeof(struct ieee80211_hdr_3addr));
 186
 187         skb->priority = LOW_PRIO_TID;
 188         __net_timestamp(skb);
 189
 190         return 0;
 191 }
 192
 193 /*
 194  * CFG802.11 operation handler to transmit a management frame.
 195  */
 196 static int
 197 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 198                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 199 {
 200         const u8 *buf = params->buf;
 201         size_t len = params->len;
 202         struct sk_buff *skb;
 203         u16 pkt_len;
 204         const struct ieee80211_mgmt *mgmt;
 205         struct mwifiex_txinfo *tx_info;
 206         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 207
 208         if (!buf || !len) {
 209                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 210                 return -EFAULT;
 211         }
 212
 213         mgmt = (const struct ieee80211_mgmt *)buf;
 214         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 215             ieee80211_is_probe_resp(mgmt->frame_control)) {
 216                 /* Since we support offload probe resp, we need to skip probe
 217                  * resp in AP or GO mode */
 218                 mwifiex_dbg(priv->adapter, INFO,
 219                             "info: skip to send probe resp in AP or GO mode\n");
 220                 return 0;
 221         }
 222
 223         pkt_len = len + ETH_ALEN;
 224         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 225                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 226                             pkt_len + sizeof(pkt_len));
 227
 228         if (!skb) {
 229                 mwifiex_dbg(priv->adapter, ERROR,
 230                             "allocate skb failed for management frame\n");
 231                 return -ENOMEM;
 232         }
 233
 234         tx_info = MWIFIEX_SKB_TXCB(skb);
 235         memset(tx_info, 0, sizeof(*tx_info));
 236         tx_info->bss_num = priv->bss_num;
 237         tx_info->bss_type = priv->bss_type;
 238         tx_info->pkt_len = pkt_len;
 239
 240         mwifiex_form_mgmt_frame(skb, buf, len);
 241         *cookie = prandom_u32() | 1;
 242
 243         if (ieee80211_is_action(mgmt->frame_control))
 244                 skb = mwifiex_clone_skb_for_tx_status(priv,
 245                                                       skb,
 246                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 247         else
 248                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 249                                         GFP_ATOMIC);
 250
 251         mwifiex_queue_tx_pkt(priv, skb);
 252
 253         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 254         return 0;
 255 }
 256
 257 /*
 258  * CFG802.11 operation handler to register a mgmt frame.
 259  */
 260 static void
 261 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 262                                      struct wireless_dev *wdev,
 263                                      u16 frame_type, bool reg)
 264 {
 265         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 266         u32 mask;
 267
 268         if (reg)
 269                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 270         else
 271                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 272
 273         if (mask != priv->mgmt_frame_mask) {
 274                 priv->mgmt_frame_mask = mask;
 275                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 276                                  HostCmd_ACT_GEN_SET, 0,
 277                                  &priv->mgmt_frame_mask, false);
 278                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 279         }
 280 }
 281
 282 /*
 283  * CFG802.11 operation handler to remain on channel.
 284  */
 285 static int
 286 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 287                                    struct wireless_dev *wdev,
 288                                    struct ieee80211_channel *chan,
 289                                    unsigned int duration, u64 *cookie)
 290 {
 291         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 292         int ret;
 293
 294         if (!chan || !cookie) {
 295                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 296                 return -EINVAL;
 297         }
 298
 299         if (priv->roc_cfg.cookie) {
 300                 mwifiex_dbg(priv->adapter, INFO,
 301                             "info: ongoing ROC, cookie = 0x%llx\n",
 302                             priv->roc_cfg.cookie);
 303                 return -EBUSY;
 304         }
 305
 306         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 307                                          duration);
 308
 309         if (!ret) {
 310                 *cookie = prandom_u32() | 1;
 311                 priv->roc_cfg.cookie = *cookie;
 312                 priv->roc_cfg.chan = *chan;
 313
 314                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 315                                           duration, GFP_ATOMIC);
 316
 317                 mwifiex_dbg(priv->adapter, INFO,
 318                             "info: ROC, cookie = 0x%llx\n", *cookie);
 319         }
 320
 321         return ret;
 322 }
 323
 324 /*
 325  * CFG802.11 operation handler to cancel remain on channel.
 326  */
 327 static int
 328 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 329                                           struct wireless_dev *wdev, u64 cookie)
 330 {
 331         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 332         int ret;
 333
 334         if (cookie != priv->roc_cfg.cookie)
 335                 return -ENOENT;
 336
 337         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 338                                          &priv->roc_cfg.chan, 0);
 339
 340         if (!ret) {
 341                 cfg80211_remain_on_channel_expired(wdev, cookie,
 342                                                    &priv->roc_cfg.chan,
 343                                                    GFP_ATOMIC);
 344
 345                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 346
 347                 mwifiex_dbg(priv->adapter, INFO,
 348                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
 349         }
 350
 351         return ret;
 352 }
 353
 354 /*
 355  * CFG802.11 operation handler to set Tx power.
 356  */
 357 static int
 358 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 359                               struct wireless_dev *wdev,
 360                               enum nl80211_tx_power_setting type,
 361                               int mbm)
 362 {
 363         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 364         struct mwifiex_private *priv;
 365         struct mwifiex_power_cfg power_cfg;
 366         int dbm = MBM_TO_DBM(mbm);
 367
 368         if (type == NL80211_TX_POWER_FIXED) {
 369                 power_cfg.is_power_auto = 0;
 370                 power_cfg.power_level = dbm;
 371         } else {
 372                 power_cfg.is_power_auto = 1;
 373         }
 374
 375         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 376
 377         return mwifiex_set_tx_power(priv, &power_cfg);
 378 }
 379
 380 /*
 381  * CFG802.11 operation handler to set Power Save option.
 382  *
 383  * The timeout value, if provided, is currently ignored.
 384  */
 385 static int
 386 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 387                                 struct net_device *dev,
 388                                 bool enabled, int timeout)
 389 {
 390         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 391         u32 ps_mode;
 392
 393         if (timeout)
 394                 mwifiex_dbg(priv->adapter, INFO,
 395                             "info: ignore timeout value for IEEE Power Save\n");
 396
 397         ps_mode = enabled;
 398
 399         return mwifiex_drv_set_power(priv, &ps_mode);
 400 }
 401
 402 /*
 403  * CFG802.11 operation handler to set the default network key.
 404  */
 405 static int
 406 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 407                                  u8 key_index, bool unicast,
 408                                  bool multicast)
 409 {
 410         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 411
 412         /* Return if WEP key not configured */
 413         if (!priv->sec_info.wep_enabled)
 414                 return 0;
 415
 416         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 417                 priv->wep_key_curr_index = key_index;
 418         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 419                                       NULL, 0)) {
 420                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 421                 return -EFAULT;
 422         }
 423
 424         return 0;
 425 }
 426
 427 /*
 428  * CFG802.11 operation handler to add a network key.
 429  */
 430 static int
 431 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 432                          u8 key_index, bool pairwise, const u8 *mac_addr,
 433                          struct key_params *params)
 434 {
 435         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 436         struct mwifiex_wep_key *wep_key;
 437         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 438         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 439
 440         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 441             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 442              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 443                 if (params->key && params->key_len) {
 444                         wep_key = &priv->wep_key[key_index];
 445                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 446                         memcpy(wep_key->key_material, params->key,
 447                                params->key_len);
 448                         wep_key->key_index = key_index;
 449                         wep_key->key_length = params->key_len;
 450                         priv->sec_info.wep_enabled = 1;
 451                 }
 452                 return 0;
 453         }
 454
 455         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 456                                key_index, peer_mac, 0)) {
 457                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 458                 return -EFAULT;
 459         }
 460
 461         return 0;
 462 }
 463
 464 /*
 465  * This function sends domain information to the firmware.
 466  *
 467  * The following information are passed to the firmware -
 468  *      - Country codes
 469  *      - Sub bands (first channel, number of channels, maximum Tx power)
 470  */
 471 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 472 {
 473         u8 no_of_triplet = 0;
 474         struct ieee80211_country_ie_triplet *t;
 475         u8 no_of_parsed_chan = 0;
 476         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 477         u8 i, flag = 0;
 478         enum ieee80211_band band;
 479         struct ieee80211_supported_band *sband;
 480         struct ieee80211_channel *ch;
 481         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 482         struct mwifiex_private *priv;
 483         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 484
 485         /* Set country code */
 486         domain_info->country_code[0] = adapter->country_code[0];
 487         domain_info->country_code[1] = adapter->country_code[1];
 488         domain_info->country_code[2] = ' ';
 489
 490         band = mwifiex_band_to_radio_type(adapter->config_bands);
 491         if (!wiphy->bands[band]) {
 492                 mwifiex_dbg(adapter, ERROR,
 493                             "11D: setting domain info in FW\n");
 494                 return -1;
 495         }
 496
 497         sband = wiphy->bands[band];
 498
 499         for (i = 0; i < sband->n_channels ; i++) {
 500                 ch = &sband->channels[i];
 501                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 502                         continue;
 503
 504                 if (!flag) {
 505                         flag = 1;
 506                         first_chan = (u32) ch->hw_value;
 507                         next_chan = first_chan;
 508                         max_pwr = ch->max_power;
 509                         no_of_parsed_chan = 1;
 510                         continue;
 511                 }
 512
 513                 if (ch->hw_value == next_chan + 1 &&
 514                     ch->max_power == max_pwr) {
 515                         next_chan++;
 516                         no_of_parsed_chan++;
 517                 } else {
 518                         t = &domain_info->triplet[no_of_triplet];
 519                         t->chans.first_channel = first_chan;
 520                         t->chans.num_channels = no_of_parsed_chan;
 521                         t->chans.max_power = max_pwr;
 522                         no_of_triplet++;
 523                         first_chan = (u32) ch->hw_value;
 524                         next_chan = first_chan;
 525                         max_pwr = ch->max_power;
 526                         no_of_parsed_chan = 1;
 527                 }
 528         }
 529
 530         if (flag) {
 531                 t = &domain_info->triplet[no_of_triplet];
 532                 t->chans.first_channel = first_chan;
 533                 t->chans.num_channels = no_of_parsed_chan;
 534                 t->chans.max_power = max_pwr;
 535                 no_of_triplet++;
 536         }
 537
 538         domain_info->no_of_triplet = no_of_triplet;
 539
 540         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 541
 542         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 543                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 544                 mwifiex_dbg(adapter, INFO,
 545                             "11D: setting domain info in FW\n");
 546                 return -1;
 547         }
 548
 549         return 0;
 550 }
 551
 552 /*
 553  * CFG802.11 regulatory domain callback function.
 554  *
 555  * This function is called when the regulatory domain is changed due to the
 556  * following reasons -
 557  *      - Set by driver
 558  *      - Set by system core
 559  *      - Set by user
 560  *      - Set bt Country IE
 561  */
 562 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 563                                  struct regulatory_request *request)
 564 {
 565         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 566         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 567                                                         MWIFIEX_BSS_ROLE_ANY);
 568         mwifiex_dbg(adapter, INFO,
 569                     "info: cfg80211 regulatory domain callback for %c%c\n",
 570                     request->alpha2[0], request->alpha2[1]);
 571
 572         switch (request->initiator) {
 573         case NL80211_REGDOM_SET_BY_DRIVER:
 574         case NL80211_REGDOM_SET_BY_CORE:
 575         case NL80211_REGDOM_SET_BY_USER:
 576         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 577                 break;
 578         default:
 579                 mwifiex_dbg(adapter, ERROR,
 580                             "unknown regdom initiator: %d\n",
 581                             request->initiator);
 582                 return;
 583         }
 584
 585         /* Don't send world or same regdom info to firmware */
 586         if (strncmp(request->alpha2, "00", 2) &&
 587             strncmp(request->alpha2, adapter->country_code,
 588                     sizeof(request->alpha2))) {
 589                 memcpy(adapter->country_code, request->alpha2,
 590                        sizeof(request->alpha2));
 591                 mwifiex_send_domain_info_cmd_fw(wiphy);
 592                 mwifiex_dnld_txpwr_table(priv);
 593         }
 594 }
 595
 596 /*
 597  * This function sets the fragmentation threshold.
 598  *
 599  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 600  * and MWIFIEX_FRAG_MAX_VALUE.
 601  */
 602 static int
 603 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 604 {
 605         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 606             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 607                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 608
 609         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 610                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 611                                 &frag_thr, true);
 612 }
 613
 614 /*
 615  * This function sets the RTS threshold.
 616
 617  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 618  * and MWIFIEX_RTS_MAX_VALUE.
 619  */
 620 static int
 621 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 622 {
 623         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 624                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 625
 626         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 627                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 628                                 &rts_thr, true);
 629 }
 630
 631 /*
 632  * CFG802.11 operation handler to set wiphy parameters.
 633  *
 634  * This function can be used to set the RTS threshold and the
 635  * Fragmentation threshold of the driver.
 636  */
 637 static int
 638 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 639 {
 640         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 641         struct mwifiex_private *priv;
 642         struct mwifiex_uap_bss_param *bss_cfg;
 643         int ret;
 644
 645         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 646
 647         switch (priv->bss_role) {
 648         case MWIFIEX_BSS_ROLE_UAP:
 649                 if (priv->bss_started) {
 650                         mwifiex_dbg(adapter, ERROR,
 651                                     "cannot change wiphy params when bss started");
 652                         return -EINVAL;
 653                 }
 654
 655                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 656                 if (!bss_cfg)
 657                         return -ENOMEM;
 658
 659                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 660
 661                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 662                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 663                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 664                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 665                 if (changed & WIPHY_PARAM_RETRY_LONG)
 666                         bss_cfg->retry_limit = wiphy->retry_long;
 667
 668                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 669                                        HostCmd_ACT_GEN_SET,
 670                                        UAP_BSS_PARAMS_I, bss_cfg,
 671                                        false);
 672
 673                 kfree(bss_cfg);
 674                 if (ret) {
 675                         mwifiex_dbg(adapter, ERROR,
 676                                     "Failed to set wiphy phy params\n");
 677                         return ret;
 678                 }
 679                 break;
 680
 681                 case MWIFIEX_BSS_ROLE_STA:
 682                 if (priv->media_connected) {
 683                         mwifiex_dbg(adapter, ERROR,
 684                                     "cannot change wiphy params when connected");
 685                         return -EINVAL;
 686                 }
 687                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 688                         ret = mwifiex_set_rts(priv,
 689                                               wiphy->rts_threshold);
 690                         if (ret)
 691                                 return ret;
 692                 }
 693                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 694                         ret = mwifiex_set_frag(priv,
 695                                                wiphy->frag_threshold);
 696                         if (ret)
 697                                 return ret;
 698                 }
 699                 break;
 700         }
 701
 702         return 0;
 703 }
 704
 705 static int
 706 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 707 {
 708         u16 mode = P2P_MODE_DISABLE;
 709
 710         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 711                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 712                 return -1;
 713
 714         return 0;
 715 }
 716
 717 /*
 718  * This function initializes the functionalities for P2P client.
 719  * The P2P client initialization sequence is:
 720  * disable -> device -> client
 721  */
 722 static int
 723 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 724 {
 725         u16 mode;
 726
 727         if (mwifiex_cfg80211_deinit_p2p(priv))
 728                 return -1;
 729
 730         mode = P2P_MODE_DEVICE;
 731         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 732                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 733                 return -1;
 734
 735         mode = P2P_MODE_CLIENT;
 736         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 737                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 738                 return -1;
 739
 740         return 0;
 741 }
 742
 743 /*
 744  * This function initializes the functionalities for P2P GO.
 745  * The P2P GO initialization sequence is:
 746  * disable -> device -> GO
 747  */
 748 static int
 749 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 750 {
 751         u16 mode;
 752
 753         if (mwifiex_cfg80211_deinit_p2p(priv))
 754                 return -1;
 755
 756         mode = P2P_MODE_DEVICE;
 757         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 758                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 759                 return -1;
 760
 761         mode = P2P_MODE_GO;
 762         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 763                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 764                 return -1;
 765
 766         return 0;
 767 }
 768
 769 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 770 {
 771         struct mwifiex_adapter *adapter = priv->adapter;
 772         unsigned long flags;
 773
 774         priv->mgmt_frame_mask = 0;
 775         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 776                              HostCmd_ACT_GEN_SET, 0,
 777                              &priv->mgmt_frame_mask, false)) {
 778                 mwifiex_dbg(adapter, ERROR,
 779                             "could not unregister mgmt frame rx\n");
 780                 return -1;
 781         }
 782
 783         mwifiex_deauthenticate(priv, NULL);
 784
 785         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 786         adapter->main_locked = true;
 787         if (adapter->mwifiex_processing) {
 788                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 789                 flush_workqueue(adapter->workqueue);
 790         } else {
 791                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 792         }
 793
 794         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 795         adapter->rx_locked = true;
 796         if (adapter->rx_processing) {
 797                 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 798                 flush_workqueue(adapter->rx_workqueue);
 799         } else {
 800         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 801         }
 802
 803         mwifiex_free_priv(priv);
 804         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 805         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 806         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 807
 808         return 0;
 809 }
 810
 811 static int
 812 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 813                              struct net_device *dev,
 814                              enum nl80211_iftype type)
 815 {
 816         struct mwifiex_adapter *adapter = priv->adapter;
 817         unsigned long flags;
 818
 819         mwifiex_init_priv(priv);
 820
 821         priv->bss_mode = type;
 822         priv->wdev.iftype = type;
 823
 824         mwifiex_init_priv_params(priv, priv->netdev);
 825         priv->bss_started = 0;
 826
 827         switch (type) {
 828         case NL80211_IFTYPE_STATION:
 829         case NL80211_IFTYPE_ADHOC:
 830                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 831                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 832                 break;
 833         case NL80211_IFTYPE_P2P_CLIENT:
 834                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 835                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 836                 break;
 837         case NL80211_IFTYPE_P2P_GO:
 838                 priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 839                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 840                 break;
 841         case NL80211_IFTYPE_AP:
 842                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 843                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 844                 break;
 845         default:
 846                 mwifiex_dbg(adapter, ERROR,
 847                             "%s: changing to %d not supported\n",
 848                             dev->name, type);
 849                 return -EOPNOTSUPP;
 850         }
 851
 852         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 853         adapter->main_locked = false;
 854         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 855
 856         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 857         adapter->rx_locked = false;
 858         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 859
 860         return 0;
 861 }
 862
 863 static int
 864 mwifiex_change_vif_to_p2p(struct net_device *dev,
 865                           enum nl80211_iftype curr_iftype,
 866                           enum nl80211_iftype type, u32 *flags,
 867                           struct vif_params *params)
 868 {
 869         struct mwifiex_private *priv;
 870         struct mwifiex_adapter *adapter;
 871
 872         priv = mwifiex_netdev_get_priv(dev);
 873
 874         if (!priv)
 875                 return -1;
 876
 877         adapter = priv->adapter;
 878
 879         if (adapter->curr_iface_comb.p2p_intf ==
 880             adapter->iface_limit.p2p_intf) {
 881                 mwifiex_dbg(adapter, ERROR,
 882                             "cannot create multiple P2P ifaces\n");
 883                 return -1;
 884         }
 885
 886         mwifiex_dbg(adapter, INFO,
 887                     "%s: changing role to p2p\n", dev->name);
 888
 889         if (mwifiex_deinit_priv_params(priv))
 890                 return -1;
 891         if (mwifiex_init_new_priv_params(priv, dev, type))
 892                 return -1;
 893
 894         switch (type) {
 895         case NL80211_IFTYPE_P2P_CLIENT:
 896                 if (mwifiex_cfg80211_init_p2p_client(priv))
 897                         return -EFAULT;
 898                 break;
 899         case NL80211_IFTYPE_P2P_GO:
 900                 if (mwifiex_cfg80211_init_p2p_go(priv))
 901                         return -EFAULT;
 902                 break;
 903         default:
 904                 mwifiex_dbg(adapter, ERROR,
 905                             "%s: changing to %d not supported\n",
 906                             dev->name, type);
 907                 return -EOPNOTSUPP;
 908         }
 909
 910         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 911                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 912                 return -1;
 913
 914         if (mwifiex_sta_init_cmd(priv, false, false))
 915                 return -1;
 916
 917         switch (curr_iftype) {
 918         case NL80211_IFTYPE_STATION:
 919         case NL80211_IFTYPE_ADHOC:
 920                 adapter->curr_iface_comb.sta_intf--;
 921                 break;
 922         case NL80211_IFTYPE_AP:
 923                 adapter->curr_iface_comb.uap_intf--;
 924                 break;
 925         default:
 926                 break;
 927         }
 928
 929         adapter->curr_iface_comb.p2p_intf++;
 930         dev->ieee80211_ptr->iftype = type;
 931
 932         return 0;
 933 }
 934
 935 static int
 936 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
 937                                 enum nl80211_iftype curr_iftype,
 938                                 enum nl80211_iftype type, u32 *flags,
 939                                 struct vif_params *params)
 940 {
 941         struct mwifiex_private *priv;
 942         struct mwifiex_adapter *adapter;
 943
 944         priv = mwifiex_netdev_get_priv(dev);
 945
 946         if (!priv)
 947                 return -1;
 948
 949         adapter = priv->adapter;
 950
 951         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
 952              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
 953             (adapter->curr_iface_comb.sta_intf ==
 954              adapter->iface_limit.sta_intf)) {
 955                 mwifiex_dbg(adapter, ERROR,
 956                             "cannot create multiple station/adhoc ifaces\n");
 957                 return -1;
 958         }
 959
 960         if (type == NL80211_IFTYPE_STATION)
 961                 mwifiex_dbg(adapter, INFO,
 962                             "%s: changing role to station\n", dev->name);
 963         else
 964                 mwifiex_dbg(adapter, INFO,
 965                             "%s: changing role to adhoc\n", dev->name);
 966
 967         if (mwifiex_deinit_priv_params(priv))
 968                 return -1;
 969         if (mwifiex_init_new_priv_params(priv, dev, type))
 970                 return -1;
 971         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 972                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 973                 return -1;
 974         if (mwifiex_sta_init_cmd(priv, false, false))
 975                 return -1;
 976
 977         switch (curr_iftype) {
 978         case NL80211_IFTYPE_P2P_CLIENT:
 979         case NL80211_IFTYPE_P2P_GO:
 980                 adapter->curr_iface_comb.p2p_intf--;
 981                 break;
 982         case NL80211_IFTYPE_AP:
 983                 adapter->curr_iface_comb.uap_intf--;
 984                 break;
 985         default:
 986                 break;
 987         }
 988
 989         adapter->curr_iface_comb.sta_intf++;
 990         dev->ieee80211_ptr->iftype = type;
 991         return 0;
 992 }
 993
 994 static int
 995 mwifiex_change_vif_to_ap(struct net_device *dev,
 996                          enum nl80211_iftype curr_iftype,
 997                          enum nl80211_iftype type, u32 *flags,
 998                          struct vif_params *params)
 999 {
1000         struct mwifiex_private *priv;
1001         struct mwifiex_adapter *adapter;
1002
1003         priv = mwifiex_netdev_get_priv(dev);
1004
1005         if (!priv)
1006                 return -1;
1007
1008         adapter = priv->adapter;
1009
1010         if (adapter->curr_iface_comb.uap_intf ==
1011             adapter->iface_limit.uap_intf) {
1012                 mwifiex_dbg(adapter, ERROR,
1013                             "cannot create multiple AP ifaces\n");
1014                 return -1;
1015         }
1016
1017         mwifiex_dbg(adapter, INFO,
1018                     "%s: changing role to AP\n", dev->name);
1019
1020         if (mwifiex_deinit_priv_params(priv))
1021                 return -1;
1022         if (mwifiex_init_new_priv_params(priv, dev, type))
1023                 return -1;
1024         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1025                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1026                 return -1;
1027         if (mwifiex_sta_init_cmd(priv, false, false))
1028                 return -1;
1029
1030         switch (curr_iftype) {
1031         case NL80211_IFTYPE_P2P_CLIENT:
1032         case NL80211_IFTYPE_P2P_GO:
1033                 adapter->curr_iface_comb.p2p_intf--;
1034                 break;
1035         case NL80211_IFTYPE_STATION:
1036         case NL80211_IFTYPE_ADHOC:
1037                 adapter->curr_iface_comb.sta_intf--;
1038                 break;
1039         default:
1040                 break;
1041         }
1042
1043         adapter->curr_iface_comb.uap_intf++;
1044         dev->ieee80211_ptr->iftype = type;
1045         return 0;
1046 }
1047 /*
1048  * CFG802.11 operation handler to change interface type.
1049  */
1050 static int
1051 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1052                                      struct net_device *dev,
1053                                      enum nl80211_iftype type, u32 *flags,
1054                                      struct vif_params *params)
1055 {
1056         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1057         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1058
1059         switch (curr_iftype) {
1060         case NL80211_IFTYPE_ADHOC:
1061                 switch (type) {
1062                 case NL80211_IFTYPE_STATION:
1063                         priv->bss_mode = type;
1064                         priv->sec_info.authentication_mode =
1065                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1066                         dev->ieee80211_ptr->iftype = type;
1067                         mwifiex_deauthenticate(priv, NULL);
1068                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1069                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1070                                                 true);
1071                 case NL80211_IFTYPE_P2P_CLIENT:
1072                 case NL80211_IFTYPE_P2P_GO:
1073                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1074                                                          type, flags, params);
1075                 case NL80211_IFTYPE_AP:
1076                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1077                                                         flags, params);
1078                 case NL80211_IFTYPE_UNSPECIFIED:
1079                         mwifiex_dbg(priv->adapter, INFO,
1080                                     "%s: kept type as IBSS\n", dev->name);
1081                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1082                         return 0;
1083                 default:
1084                         mwifiex_dbg(priv->adapter, ERROR,
1085                                     "%s: changing to %d not supported\n",
1086                                     dev->name, type);
1087                         return -EOPNOTSUPP;
1088                 }
1089                 break;
1090         case NL80211_IFTYPE_STATION:
1091                 switch (type) {
1092                 case NL80211_IFTYPE_ADHOC:
1093                         priv->bss_mode = type;
1094                         priv->sec_info.authentication_mode =
1095                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1096                         dev->ieee80211_ptr->iftype = type;
1097                         mwifiex_deauthenticate(priv, NULL);
1098                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1099                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1100                                                 true);
1101                 case NL80211_IFTYPE_P2P_CLIENT:
1102                 case NL80211_IFTYPE_P2P_GO:
1103                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1104                                                          type, flags, params);
1105                 case NL80211_IFTYPE_AP:
1106                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1107                                                         flags, params);
1108                 case NL80211_IFTYPE_UNSPECIFIED:
1109                         mwifiex_dbg(priv->adapter, INFO,
1110                                     "%s: kept type as STA\n", dev->name);
1111                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1112                         return 0;
1113                 default:
1114                         mwifiex_dbg(priv->adapter, ERROR,
1115                                     "%s: changing to %d not supported\n",
1116                                     dev->name, type);
1117                         return -EOPNOTSUPP;
1118                 }
1119                 break;
1120         case NL80211_IFTYPE_AP:
1121                 switch (type) {
1122                 case NL80211_IFTYPE_ADHOC:
1123                 case NL80211_IFTYPE_STATION:
1124                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1125                                                                type, flags,
1126                                                                params);
1127                         break;
1128                 case NL80211_IFTYPE_P2P_CLIENT:
1129                 case NL80211_IFTYPE_P2P_GO:
1130                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1131                                                          type, flags, params);
1132                 case NL80211_IFTYPE_UNSPECIFIED:
1133                         mwifiex_dbg(priv->adapter, INFO,
1134                                     "%s: kept type as AP\n", dev->name);
1135                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1136                         return 0;
1137                 default:
1138                         mwifiex_dbg(priv->adapter, ERROR,
1139                                     "%s: changing to %d not supported\n",
1140                                     dev->name, type);
1141                         return -EOPNOTSUPP;
1142                 }
1143                 break;
1144         case NL80211_IFTYPE_P2P_CLIENT:
1145         case NL80211_IFTYPE_P2P_GO:
1146                 switch (type) {
1147                 case NL80211_IFTYPE_STATION:
1148                         if (mwifiex_cfg80211_deinit_p2p(priv))
1149                                 return -EFAULT;
1150                         priv->adapter->curr_iface_comb.p2p_intf--;
1151                         priv->adapter->curr_iface_comb.sta_intf++;
1152                         dev->ieee80211_ptr->iftype = type;
1153                         break;
1154                 case NL80211_IFTYPE_ADHOC:
1155                         if (mwifiex_cfg80211_deinit_p2p(priv))
1156                                 return -EFAULT;
1157                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1158                                                                type, flags,
1159                                                                params);
1160                         break;
1161                 case NL80211_IFTYPE_AP:
1162                         if (mwifiex_cfg80211_deinit_p2p(priv))
1163                                 return -EFAULT;
1164                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1165                                                         flags, params);
1166                 case NL80211_IFTYPE_UNSPECIFIED:
1167                         mwifiex_dbg(priv->adapter, INFO,
1168                                     "%s: kept type as P2P\n", dev->name);
1169                 case NL80211_IFTYPE_P2P_CLIENT:
1170                 case NL80211_IFTYPE_P2P_GO:
1171                         return 0;
1172                 default:
1173                         mwifiex_dbg(priv->adapter, ERROR,
1174                                     "%s: changing to %d not supported\n",
1175                                     dev->name, type);
1176                         return -EOPNOTSUPP;
1177                 }
1178                 break;
1179         default:
1180                 mwifiex_dbg(priv->adapter, ERROR,
1181                             "%s: unknown iftype: %d\n",
1182                             dev->name, dev->ieee80211_ptr->iftype);
1183                 return -EOPNOTSUPP;
1184         }
1185
1186
1187         return 0;
1188 }
1189
1190 static void
1191 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1192                      struct rate_info *rate)
1193 {
1194         struct mwifiex_adapter *adapter = priv->adapter;
1195
1196         if (adapter->is_hw_11ac_capable) {
1197                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1198                 if (tx_htinfo & BIT(0)) {
1199                         /* HT */
1200                         rate->mcs = priv->tx_rate;
1201                         rate->flags |= RATE_INFO_FLAGS_MCS;
1202                 }
1203                 if (tx_htinfo & BIT(1)) {
1204                         /* VHT */
1205                         rate->mcs = priv->tx_rate & 0x0F;
1206                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1207                 }
1208
1209                 if (tx_htinfo & (BIT(1) | BIT(0))) {
1210                         /* HT or VHT */
1211                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
1212                         case 0:
1213                                 rate->bw = RATE_INFO_BW_20;
1214                                 break;
1215                         case (BIT(2)):
1216                                 rate->bw = RATE_INFO_BW_40;
1217                                 break;
1218                         case (BIT(3)):
1219                                 rate->bw = RATE_INFO_BW_80;
1220                                 break;
1221                         case (BIT(3) | BIT(2)):
1222                                 rate->bw = RATE_INFO_BW_160;
1223                                 break;
1224                         }
1225
1226                         if (tx_htinfo & BIT(4))
1227                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1228
1229                         if ((priv->tx_rate >> 4) == 1)
1230                                 rate->nss = 2;
1231                         else
1232                                 rate->nss = 1;
1233                 }
1234         } else {
1235                 /*
1236                  * Bit 0 in tx_htinfo indicates that current Tx rate
1237                  * is 11n rate. Valid MCS index values for us are 0 to 15.
1238                  */
1239                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1240                         rate->mcs = priv->tx_rate;
1241                         rate->flags |= RATE_INFO_FLAGS_MCS;
1242                         rate->bw = RATE_INFO_BW_20;
1243                         if (tx_htinfo & BIT(1))
1244                                 rate->bw = RATE_INFO_BW_40;
1245                         if (tx_htinfo & BIT(2))
1246                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1247                 }
1248         }
1249 }
1250
1251 /*
1252  * This function dumps the station information on a buffer.
1253  *
1254  * The following information are shown -
1255  *      - Total bytes transmitted
1256  *      - Total bytes received
1257  *      - Total packets transmitted
1258  *      - Total packets received
1259  *      - Signal quality level
1260  *      - Transmission rate
1261  */
1262 static int
1263 mwifiex_dump_station_info(struct mwifiex_private *priv,
1264                           struct mwifiex_sta_node *node,
1265                           struct station_info *sinfo)
1266 {
1267         u32 rate;
1268
1269         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1270                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1271                         BIT(NL80211_STA_INFO_TX_BITRATE) |
1272                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1273
1274         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1275                 if (!node)
1276                         return -ENOENT;
1277
1278                 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1279                                 BIT(NL80211_STA_INFO_TX_FAILED);
1280                 sinfo->inactive_time =
1281                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1282
1283                 sinfo->signal = node->stats.rssi;
1284                 sinfo->signal_avg = node->stats.rssi;
1285                 sinfo->rx_bytes = node->stats.rx_bytes;
1286                 sinfo->tx_bytes = node->stats.tx_bytes;
1287                 sinfo->rx_packets = node->stats.rx_packets;
1288                 sinfo->tx_packets = node->stats.tx_packets;
1289                 sinfo->tx_failed = node->stats.tx_failed;
1290
1291                 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1292                                      &sinfo->txrate);
1293                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1294
1295                 return 0;
1296         }
1297
1298         /* Get signal information from the firmware */
1299         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1300                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1301                 mwifiex_dbg(priv->adapter, ERROR,
1302                             "failed to get signal information\n");
1303                 return -EFAULT;
1304         }
1305
1306         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1307                 mwifiex_dbg(priv->adapter, ERROR,
1308                             "getting data rate error\n");
1309                 return -EFAULT;
1310         }
1311
1312         /* Get DTIM period information from firmware */
1313         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1314                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1315                          &priv->dtim_period, true);
1316
1317         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1318
1319         sinfo->signal_avg = priv->bcn_rssi_avg;
1320         sinfo->rx_bytes = priv->stats.rx_bytes;
1321         sinfo->tx_bytes = priv->stats.tx_bytes;
1322         sinfo->rx_packets = priv->stats.rx_packets;
1323         sinfo->tx_packets = priv->stats.tx_packets;
1324         sinfo->signal = priv->bcn_rssi_avg;
1325         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1326         sinfo->txrate.legacy = rate * 5;
1327
1328         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1329                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1330                 sinfo->bss_param.flags = 0;
1331                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1332                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1333                         sinfo->bss_param.flags |=
1334                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1335                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1336                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1337                         sinfo->bss_param.flags |=
1338                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1339                 sinfo->bss_param.dtim_period = priv->dtim_period;
1340                 sinfo->bss_param.beacon_interval =
1341                         priv->curr_bss_params.bss_descriptor.beacon_period;
1342         }
1343
1344         return 0;
1345 }
1346
1347 /*
1348  * CFG802.11 operation handler to get station information.
1349  *
1350  * This function only works in connected mode, and dumps the
1351  * requested station information, if available.
1352  */
1353 static int
1354 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1355                              const u8 *mac, struct station_info *sinfo)
1356 {
1357         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1358
1359         if (!priv->media_connected)
1360                 return -ENOENT;
1361         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1362                 return -ENOENT;
1363
1364         return mwifiex_dump_station_info(priv, NULL, sinfo);
1365 }
1366
1367 /*
1368  * CFG802.11 operation handler to dump station information.
1369  */
1370 static int
1371 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1372                               int idx, u8 *mac, struct station_info *sinfo)
1373 {
1374         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1375         static struct mwifiex_sta_node *node;
1376
1377         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1378             priv->media_connected && idx == 0) {
1379                 ether_addr_copy(mac, priv->cfg_bssid);
1380                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1381         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1382                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1383                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1384
1385                 if (node && (&node->list == &priv->sta_list)) {
1386                         node = NULL;
1387                         return -ENOENT;
1388                 }
1389
1390                 node = list_prepare_entry(node, &priv->sta_list, list);
1391                 list_for_each_entry_continue(node, &priv->sta_list, list) {
1392                         ether_addr_copy(mac, node->mac_addr);
1393                         return mwifiex_dump_station_info(priv, node, sinfo);
1394                 }
1395         }
1396
1397         return -ENOENT;
1398 }
1399
1400 static int
1401 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1402                              int idx, struct survey_info *survey)
1403 {
1404         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1405         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1406         enum ieee80211_band band;
1407
1408         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1409
1410         memset(survey, 0, sizeof(struct survey_info));
1411
1412         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1413             priv->media_connected && idx == 0) {
1414                         u8 curr_bss_band = priv->curr_bss_params.band;
1415                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1416
1417                         band = mwifiex_band_to_radio_type(curr_bss_band);
1418                         survey->channel = ieee80211_get_channel(wiphy,
1419                                 ieee80211_channel_to_frequency(chan, band));
1420
1421                         if (priv->bcn_nf_last) {
1422                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1423                                 survey->noise = priv->bcn_nf_last;
1424                         }
1425                         return 0;
1426         }
1427
1428         if (idx >= priv->adapter->num_in_chan_stats)
1429                 return -ENOENT;
1430
1431         if (!pchan_stats[idx].cca_scan_dur)
1432                 return 0;
1433
1434         band = pchan_stats[idx].bandcfg;
1435         survey->channel = ieee80211_get_channel(wiphy,
1436             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1437         survey->filled = SURVEY_INFO_NOISE_DBM |
1438                          SURVEY_INFO_TIME |
1439                          SURVEY_INFO_TIME_BUSY;
1440         survey->noise = pchan_stats[idx].noise;
1441         survey->time = pchan_stats[idx].cca_scan_dur;
1442         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1443
1444         return 0;
1445 }
1446
1447 /* Supported rates to be advertised to the cfg80211 */
1448 static struct ieee80211_rate mwifiex_rates[] = {
1449         {.bitrate = 10, .hw_value = 2, },
1450         {.bitrate = 20, .hw_value = 4, },
1451         {.bitrate = 55, .hw_value = 11, },
1452         {.bitrate = 110, .hw_value = 22, },
1453         {.bitrate = 60, .hw_value = 12, },
1454         {.bitrate = 90, .hw_value = 18, },
1455         {.bitrate = 120, .hw_value = 24, },
1456         {.bitrate = 180, .hw_value = 36, },
1457         {.bitrate = 240, .hw_value = 48, },
1458         {.bitrate = 360, .hw_value = 72, },
1459         {.bitrate = 480, .hw_value = 96, },
1460         {.bitrate = 540, .hw_value = 108, },
1461 };
1462
1463 /* Channel definitions to be advertised to cfg80211 */
1464 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1465         {.center_freq = 2412, .hw_value = 1, },
1466         {.center_freq = 2417, .hw_value = 2, },
1467         {.center_freq = 2422, .hw_value = 3, },
1468         {.center_freq = 2427, .hw_value = 4, },
1469         {.center_freq = 2432, .hw_value = 5, },
1470         {.center_freq = 2437, .hw_value = 6, },
1471         {.center_freq = 2442, .hw_value = 7, },
1472         {.center_freq = 2447, .hw_value = 8, },
1473         {.center_freq = 2452, .hw_value = 9, },
1474         {.center_freq = 2457, .hw_value = 10, },
1475         {.center_freq = 2462, .hw_value = 11, },
1476         {.center_freq = 2467, .hw_value = 12, },
1477         {.center_freq = 2472, .hw_value = 13, },
1478         {.center_freq = 2484, .hw_value = 14, },
1479 };
1480
1481 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1482         .channels = mwifiex_channels_2ghz,
1483         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1484         .bitrates = mwifiex_rates,
1485         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1486 };
1487
1488 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1489         {.center_freq = 5040, .hw_value = 8, },
1490         {.center_freq = 5060, .hw_value = 12, },
1491         {.center_freq = 5080, .hw_value = 16, },
1492         {.center_freq = 5170, .hw_value = 34, },
1493         {.center_freq = 5190, .hw_value = 38, },
1494         {.center_freq = 5210, .hw_value = 42, },
1495         {.center_freq = 5230, .hw_value = 46, },
1496         {.center_freq = 5180, .hw_value = 36, },
1497         {.center_freq = 5200, .hw_value = 40, },
1498         {.center_freq = 5220, .hw_value = 44, },
1499         {.center_freq = 5240, .hw_value = 48, },
1500         {.center_freq = 5260, .hw_value = 52, },
1501         {.center_freq = 5280, .hw_value = 56, },
1502         {.center_freq = 5300, .hw_value = 60, },
1503         {.center_freq = 5320, .hw_value = 64, },
1504         {.center_freq = 5500, .hw_value = 100, },
1505         {.center_freq = 5520, .hw_value = 104, },
1506         {.center_freq = 5540, .hw_value = 108, },
1507         {.center_freq = 5560, .hw_value = 112, },
1508         {.center_freq = 5580, .hw_value = 116, },
1509         {.center_freq = 5600, .hw_value = 120, },
1510         {.center_freq = 5620, .hw_value = 124, },
1511         {.center_freq = 5640, .hw_value = 128, },
1512         {.center_freq = 5660, .hw_value = 132, },
1513         {.center_freq = 5680, .hw_value = 136, },
1514         {.center_freq = 5700, .hw_value = 140, },
1515         {.center_freq = 5745, .hw_value = 149, },
1516         {.center_freq = 5765, .hw_value = 153, },
1517         {.center_freq = 5785, .hw_value = 157, },
1518         {.center_freq = 5805, .hw_value = 161, },
1519         {.center_freq = 5825, .hw_value = 165, },
1520 };
1521
1522 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1523         .channels = mwifiex_channels_5ghz,
1524         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1525         .bitrates = mwifiex_rates + 4,
1526         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1527 };
1528
1529
1530 /* Supported crypto cipher suits to be advertised to cfg80211 */
1531 static const u32 mwifiex_cipher_suites[] = {
1532         WLAN_CIPHER_SUITE_WEP40,
1533         WLAN_CIPHER_SUITE_WEP104,
1534         WLAN_CIPHER_SUITE_TKIP,
1535         WLAN_CIPHER_SUITE_CCMP,
1536         WLAN_CIPHER_SUITE_AES_CMAC,
1537 };
1538
1539 /* Supported mgmt frame types to be advertised to cfg80211 */
1540 static const struct ieee80211_txrx_stypes
1541 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1542         [NL80211_IFTYPE_STATION] = {
1543                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1544                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1545                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1546                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1547         },
1548         [NL80211_IFTYPE_AP] = {
1549                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1550                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1551                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1552                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1553         },
1554         [NL80211_IFTYPE_P2P_CLIENT] = {
1555                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1556                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1557                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1558                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1559         },
1560         [NL80211_IFTYPE_P2P_GO] = {
1561                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1562                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1563                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1564                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1565         },
1566 };
1567
1568 /*
1569  * CFG802.11 operation handler for setting bit rates.
1570  *
1571  * Function configures data rates to firmware using bitrate mask
1572  * provided by cfg80211.
1573  */
1574 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1575                                 struct net_device *dev,
1576                                 const u8 *peer,
1577                                 const struct cfg80211_bitrate_mask *mask)
1578 {
1579         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1580         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1581         enum ieee80211_band band;
1582         struct mwifiex_adapter *adapter = priv->adapter;
1583
1584         if (!priv->media_connected) {
1585                 mwifiex_dbg(adapter, ERROR,
1586                             "Can not set Tx data rate in disconnected state\n");
1587                 return -EINVAL;
1588         }
1589
1590         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1591
1592         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1593
1594         /* Fill HR/DSSS rates. */
1595         if (band == IEEE80211_BAND_2GHZ)
1596                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1597
1598         /* Fill OFDM rates */
1599         if (band == IEEE80211_BAND_2GHZ)
1600                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1601         else
1602                 bitmap_rates[1] = mask->control[band].legacy;
1603
1604         /* Fill HT MCS rates */
1605         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1606         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1607                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1608
1609        /* Fill VHT MCS rates */
1610         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1611                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1612                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1613                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1614         }
1615
1616         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1617                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1618 }
1619
1620 /*
1621  * CFG802.11 operation handler for connection quality monitoring.
1622  *
1623  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1624  * events to FW.
1625  */
1626 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1627                                                 struct net_device *dev,
1628                                                 s32 rssi_thold, u32 rssi_hyst)
1629 {
1630         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1631         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1632
1633         priv->cqm_rssi_thold = rssi_thold;
1634         priv->cqm_rssi_hyst = rssi_hyst;
1635
1636         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1637         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1638
1639         /* Subscribe/unsubscribe low and high rssi events */
1640         if (rssi_thold && rssi_hyst) {
1641                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1642                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1643                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1644                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1645                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1646                 return mwifiex_send_cmd(priv,
1647                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1648                                         0, 0, &subsc_evt, true);
1649         } else {
1650                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1651                 return mwifiex_send_cmd(priv,
1652                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1653                                         0, 0, &subsc_evt, true);
1654         }
1655
1656         return 0;
1657 }
1658
1659 /* cfg80211 operation handler for change_beacon.
1660  * Function retrieves and sets modified management IEs to FW.
1661  */
1662 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1663                                           struct net_device *dev,
1664                                           struct cfg80211_beacon_data *data)
1665 {
1666         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1667
1668         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1669                 mwifiex_dbg(priv->adapter, ERROR,
1670                             "%s: bss_type mismatched\n", __func__);
1671                 return -EINVAL;
1672         }
1673
1674         if (!priv->bss_started) {
1675                 mwifiex_dbg(priv->adapter, ERROR,
1676                             "%s: bss not started\n", __func__);
1677                 return -EINVAL;
1678         }
1679
1680         if (mwifiex_set_mgmt_ies(priv, data)) {
1681                 mwifiex_dbg(priv->adapter, ERROR,
1682                             "%s: setting mgmt ies failed\n", __func__);
1683                 return -EFAULT;
1684         }
1685
1686         return 0;
1687 }
1688
1689 /* cfg80211 operation handler for del_station.
1690  * Function deauthenticates station which value is provided in mac parameter.
1691  * If mac is NULL/broadcast, all stations in associated station list are
1692  * deauthenticated. If bss is not started or there are no stations in
1693  * associated stations list, no action is taken.
1694  */
1695 static int
1696 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1697                              struct station_del_parameters *params)
1698 {
1699         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1700         struct mwifiex_sta_node *sta_node;
1701         u8 deauth_mac[ETH_ALEN];
1702         unsigned long flags;
1703
1704         if (list_empty(&priv->sta_list) || !priv->bss_started)
1705                 return 0;
1706
1707         if (!params->mac || is_broadcast_ether_addr(params->mac))
1708                 return 0;
1709
1710         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1711                     __func__, params->mac);
1712
1713         eth_zero_addr(deauth_mac);
1714
1715         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1716         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1717         if (sta_node)
1718                 ether_addr_copy(deauth_mac, params->mac);
1719         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1720
1721         if (is_valid_ether_addr(deauth_mac)) {
1722                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1723                                      HostCmd_ACT_GEN_SET, 0,
1724                                      deauth_mac, true))
1725                         return -1;
1726         }
1727
1728         return 0;
1729 }
1730
1731 static int
1732 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1733 {
1734         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1735         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1736                                                         MWIFIEX_BSS_ROLE_ANY);
1737         struct mwifiex_ds_ant_cfg ant_cfg;
1738
1739         if (!tx_ant || !rx_ant)
1740                 return -EOPNOTSUPP;
1741
1742         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1743                 /* Not a MIMO chip. User should provide specific antenna number
1744                  * for Tx/Rx path or enable all antennas for diversity
1745                  */
1746                 if (tx_ant != rx_ant)
1747                         return -EOPNOTSUPP;
1748
1749                 if ((tx_ant & (tx_ant - 1)) &&
1750                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1751                         return -EOPNOTSUPP;
1752
1753                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1754                     (priv->adapter->number_of_antenna > 1)) {
1755                         tx_ant = RF_ANTENNA_AUTO;
1756                         rx_ant = RF_ANTENNA_AUTO;
1757                 }
1758         } else {
1759                 struct ieee80211_sta_ht_cap *ht_info;
1760                 int rx_mcs_supp;
1761                 enum ieee80211_band band;
1762
1763                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1764                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1765                         if (adapter->is_hw_11ac_capable)
1766                                 adapter->usr_dot_11ac_mcs_support =
1767                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1768                 } else {
1769                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1770                         if (adapter->is_hw_11ac_capable)
1771                                 adapter->usr_dot_11ac_mcs_support =
1772                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1773                 }
1774
1775                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1776                         if (!adapter->wiphy->bands[band])
1777                                 continue;
1778
1779                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1780                         rx_mcs_supp =
1781                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1782                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1783                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1784                 }
1785         }
1786
1787         ant_cfg.tx_ant = tx_ant;
1788         ant_cfg.rx_ant = rx_ant;
1789
1790         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1791                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1792 }
1793
1794 /* cfg80211 operation handler for stop ap.
1795  * Function stops BSS running at uAP interface.
1796  */
1797 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1798 {
1799         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1800
1801         mwifiex_abort_cac(priv);
1802
1803         if (mwifiex_del_mgmt_ies(priv))
1804                 mwifiex_dbg(priv->adapter, ERROR,
1805                             "Failed to delete mgmt IEs!\n");
1806
1807         priv->ap_11n_enabled = 0;
1808         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1809
1810         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1811                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1812                 mwifiex_dbg(priv->adapter, ERROR,
1813                             "Failed to stop the BSS\n");
1814                 return -1;
1815         }
1816
1817         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1818                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1819                 mwifiex_dbg(priv->adapter, ERROR,
1820                             "Failed to reset BSS\n");
1821                 return -1;
1822         }
1823
1824         if (netif_carrier_ok(priv->netdev))
1825                 netif_carrier_off(priv->netdev);
1826         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1827
1828         return 0;
1829 }
1830
1831 /* cfg80211 operation handler for start_ap.
1832  * Function sets beacon period, DTIM period, SSID and security into
1833  * AP config structure.
1834  * AP is configured with these settings and BSS is started.
1835  */
1836 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1837                                      struct net_device *dev,
1838                                      struct cfg80211_ap_settings *params)
1839 {
1840         struct mwifiex_uap_bss_param *bss_cfg;
1841         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1842
1843         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1844                 return -1;
1845
1846         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1847         if (!bss_cfg)
1848                 return -ENOMEM;
1849
1850         mwifiex_set_sys_config_invalid_data(bss_cfg);
1851
1852         if (params->beacon_interval)
1853                 bss_cfg->beacon_period = params->beacon_interval;
1854         if (params->dtim_period)
1855                 bss_cfg->dtim_period = params->dtim_period;
1856
1857         if (params->ssid && params->ssid_len) {
1858                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1859                 bss_cfg->ssid.ssid_len = params->ssid_len;
1860         }
1861         if (params->inactivity_timeout > 0) {
1862                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1863                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1864                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1865         }
1866
1867         switch (params->hidden_ssid) {
1868         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1869                 bss_cfg->bcast_ssid_ctl = 1;
1870                 break;
1871         case NL80211_HIDDEN_SSID_ZERO_LEN:
1872                 bss_cfg->bcast_ssid_ctl = 0;
1873                 break;
1874         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1875                 /* firmware doesn't support this type of hidden SSID */
1876         default:
1877                 kfree(bss_cfg);
1878                 return -EINVAL;
1879         }
1880
1881         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1882         mwifiex_set_uap_rates(bss_cfg, params);
1883
1884         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1885                 kfree(bss_cfg);
1886                 mwifiex_dbg(priv->adapter, ERROR,
1887                             "Failed to parse secuirty parameters!\n");
1888                 return -1;
1889         }
1890
1891         mwifiex_set_ht_params(priv, bss_cfg, params);
1892
1893         if (priv->adapter->is_hw_11ac_capable) {
1894                 mwifiex_set_vht_params(priv, bss_cfg, params);
1895                 mwifiex_set_vht_width(priv, params->chandef.width,
1896                                       priv->ap_11ac_enabled);
1897         }
1898
1899         if (priv->ap_11ac_enabled)
1900                 mwifiex_set_11ac_ba_params(priv);
1901         else
1902                 mwifiex_set_ba_params(priv);
1903
1904         mwifiex_set_wmm_params(priv, bss_cfg, params);
1905
1906         if (mwifiex_is_11h_active(priv))
1907                 mwifiex_set_tpc_params(priv, bss_cfg, params);
1908
1909         if (mwifiex_is_11h_active(priv) &&
1910             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
1911                                            priv->bss_mode)) {
1912                 mwifiex_dbg(priv->adapter, INFO,
1913                             "Disable 11h extensions in FW\n");
1914                 if (mwifiex_11h_activate(priv, false)) {
1915                         mwifiex_dbg(priv->adapter, ERROR,
1916                                     "Failed to disable 11h extensions!!");
1917                         return -1;
1918                 }
1919                 priv->state_11h.is_11h_active = false;
1920         }
1921
1922         if (mwifiex_config_start_uap(priv, bss_cfg)) {
1923                 mwifiex_dbg(priv->adapter, ERROR,
1924                             "Failed to start AP\n");
1925                 kfree(bss_cfg);
1926                 return -1;
1927         }
1928
1929         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1930                 return -1;
1931
1932         if (!netif_carrier_ok(priv->netdev))
1933                 netif_carrier_on(priv->netdev);
1934         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
1935
1936         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1937         kfree(bss_cfg);
1938         return 0;
1939 }
1940
1941 /*
1942  * CFG802.11 operation handler for disconnection request.
1943  *
1944  * This function does not work when there is already a disconnection
1945  * procedure going on.
1946  */
1947 static int
1948 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1949                             u16 reason_code)
1950 {
1951         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1952
1953         if (mwifiex_deauthenticate(priv, NULL))
1954                 return -EFAULT;
1955
1956         mwifiex_dbg(priv->adapter, MSG,
1957                     "info: successfully disconnected from %pM:\t"
1958                     "reason code %d\n", priv->cfg_bssid, reason_code);
1959
1960         eth_zero_addr(priv->cfg_bssid);
1961         priv->hs2_enabled = false;
1962
1963         return 0;
1964 }
1965
1966 /*
1967  * This function informs the CFG802.11 subsystem of a new IBSS.
1968  *
1969  * The following information are sent to the CFG802.11 subsystem
1970  * to register the new IBSS. If we do not register the new IBSS,
1971  * a kernel panic will result.
1972  *      - SSID
1973  *      - SSID length
1974  *      - BSSID
1975  *      - Channel
1976  */
1977 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1978 {
1979         struct ieee80211_channel *chan;
1980         struct mwifiex_bss_info bss_info;
1981         struct cfg80211_bss *bss;
1982         int ie_len;
1983         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1984         enum ieee80211_band band;
1985
1986         if (mwifiex_get_bss_info(priv, &bss_info))
1987                 return -1;
1988
1989         ie_buf[0] = WLAN_EID_SSID;
1990         ie_buf[1] = bss_info.ssid.ssid_len;
1991
1992         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1993                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1994         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1995
1996         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1997         chan = __ieee80211_get_channel(priv->wdev.wiphy,
1998                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1999                                                        band));
2000
2001         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2002                                   CFG80211_BSS_FTYPE_UNKNOWN,
2003                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2004                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2005         if (bss) {
2006                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2007                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2008         }
2009
2010         return 0;
2011 }
2012
2013 /*
2014  * This function connects with a BSS.
2015  *
2016  * This function handles both Infra and Ad-Hoc modes. It also performs
2017  * validity checking on the provided parameters, disconnects from the
2018  * current BSS (if any), sets up the association/scan parameters,
2019  * including security settings, and performs specific SSID scan before
2020  * trying to connect.
2021  *
2022  * For Infra mode, the function returns failure if the specified SSID
2023  * is not found in scan table. However, for Ad-Hoc mode, it can create
2024  * the IBSS if it does not exist. On successful completion in either case,
2025  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2026  */
2027 static int
2028 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2029                        const u8 *ssid, const u8 *bssid, int mode,
2030                        struct ieee80211_channel *channel,
2031                        struct cfg80211_connect_params *sme, bool privacy)
2032 {
2033         struct cfg80211_ssid req_ssid;
2034         int ret, auth_type = 0;
2035         struct cfg80211_bss *bss = NULL;
2036         u8 is_scanning_required = 0;
2037
2038         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2039
2040         req_ssid.ssid_len = ssid_len;
2041         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2042                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2043                 return -EINVAL;
2044         }
2045
2046         memcpy(req_ssid.ssid, ssid, ssid_len);
2047         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2048                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2049                 return -EINVAL;
2050         }
2051
2052         /* As this is new association, clear locally stored
2053          * keys and security related flags */
2054         priv->sec_info.wpa_enabled = false;
2055         priv->sec_info.wpa2_enabled = false;
2056         priv->wep_key_curr_index = 0;
2057         priv->sec_info.encryption_mode = 0;
2058         priv->sec_info.is_authtype_auto = 0;
2059         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2060
2061         if (mode == NL80211_IFTYPE_ADHOC) {
2062                 /* "privacy" is set only for ad-hoc mode */
2063                 if (privacy) {
2064                         /*
2065                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2066                          * the firmware can find a matching network from the
2067                          * scan. The cfg80211 does not give us the encryption
2068                          * mode at this stage so just setting it to WEP here.
2069                          */
2070                         priv->sec_info.encryption_mode =
2071                                         WLAN_CIPHER_SUITE_WEP104;
2072                         priv->sec_info.authentication_mode =
2073                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2074                 }
2075
2076                 goto done;
2077         }
2078
2079         /* Now handle infra mode. "sme" is valid for infra mode only */
2080         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2081                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2082                 priv->sec_info.is_authtype_auto = 1;
2083         } else {
2084                 auth_type = sme->auth_type;
2085         }
2086
2087         if (sme->crypto.n_ciphers_pairwise) {
2088                 priv->sec_info.encryption_mode =
2089                                                 sme->crypto.ciphers_pairwise[0];
2090                 priv->sec_info.authentication_mode = auth_type;
2091         }
2092
2093         if (sme->crypto.cipher_group) {
2094                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2095                 priv->sec_info.authentication_mode = auth_type;
2096         }
2097         if (sme->ie)
2098                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2099
2100         if (sme->key) {
2101                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2102                         mwifiex_dbg(priv->adapter, INFO,
2103                                     "info: setting wep encryption\t"
2104                                     "with key len %d\n", sme->key_len);
2105                         priv->wep_key_curr_index = sme->key_idx;
2106                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2107                                                  sme->key_len, sme->key_idx,
2108                                                  NULL, 0);
2109                 }
2110         }
2111 done:
2112         /*
2113          * Scan entries are valid for some time (15 sec). So we can save one
2114          * active scan time if we just try cfg80211_get_bss first. If it fails
2115          * then request scan and cfg80211_get_bss() again for final output.
2116          */
2117         while (1) {
2118                 if (is_scanning_required) {
2119                         /* Do specific SSID scanning */
2120                         if (mwifiex_request_scan(priv, &req_ssid)) {
2121                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2122                                 return -EFAULT;
2123                         }
2124                 }
2125
2126                 /* Find the BSS we want using available scan results */
2127                 if (mode == NL80211_IFTYPE_ADHOC)
2128                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2129                                                bssid, ssid, ssid_len,
2130                                                IEEE80211_BSS_TYPE_IBSS,
2131                                                IEEE80211_PRIVACY_ANY);
2132                 else
2133                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2134                                                bssid, ssid, ssid_len,
2135                                                IEEE80211_BSS_TYPE_ESS,
2136                                                IEEE80211_PRIVACY_ANY);
2137
2138                 if (!bss) {
2139                         if (is_scanning_required) {
2140                                 mwifiex_dbg(priv->adapter, WARN,
2141                                             "assoc: requested bss not found in scan results\n");
2142                                 break;
2143                         }
2144                         is_scanning_required = 1;
2145                 } else {
2146                         mwifiex_dbg(priv->adapter, MSG,
2147                                     "info: trying to associate to '%s' bssid %pM\n",
2148                                     (char *)req_ssid.ssid, bss->bssid);
2149                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2150                         break;
2151                 }
2152         }
2153
2154         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2155         if (ret)
2156                 return ret;
2157
2158         if (mode == NL80211_IFTYPE_ADHOC) {
2159                 /* Inform the BSS information to kernel, otherwise
2160                  * kernel will give a panic after successful assoc */
2161                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2162                         return -EFAULT;
2163         }
2164
2165         return ret;
2166 }
2167
2168 /*
2169  * CFG802.11 operation handler for association request.
2170  *
2171  * This function does not work when the current mode is set to Ad-Hoc, or
2172  * when there is already an association procedure going on. The given BSS
2173  * information is used to associate.
2174  */
2175 static int
2176 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2177                          struct cfg80211_connect_params *sme)
2178 {
2179         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2180         struct mwifiex_adapter *adapter = priv->adapter;
2181         int ret;
2182
2183         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2184                 mwifiex_dbg(adapter, ERROR,
2185                             "%s: reject infra assoc request in non-STA role\n",
2186                             dev->name);
2187                 return -EINVAL;
2188         }
2189
2190         if (priv->wdev.current_bss) {
2191                 mwifiex_dbg(adapter, ERROR,
2192                             "%s: already connected\n", dev->name);
2193                 return -EALREADY;
2194         }
2195
2196         if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2197                 mwifiex_dbg(adapter, ERROR,
2198                             "%s: Ignore connection.\t"
2199                             "Card removed or FW in bad state\n",
2200                             dev->name);
2201                 return -EFAULT;
2202         }
2203
2204         mwifiex_dbg(adapter, INFO,
2205                     "info: Trying to associate to %s and bssid %pM\n",
2206                     (char *)sme->ssid, sme->bssid);
2207
2208         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2209                                      priv->bss_mode, sme->channel, sme, 0);
2210         if (!ret) {
2211                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2212                                         NULL, 0, WLAN_STATUS_SUCCESS,
2213                                         GFP_KERNEL);
2214                 mwifiex_dbg(priv->adapter, MSG,
2215                             "info: associated to bssid %pM successfully\n",
2216                             priv->cfg_bssid);
2217                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2218                     priv->adapter->auto_tdls &&
2219                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2220                         mwifiex_setup_auto_tdls_timer(priv);
2221         } else {
2222                 mwifiex_dbg(priv->adapter, ERROR,
2223                             "info: association to bssid %pM failed\n",
2224                             priv->cfg_bssid);
2225                 eth_zero_addr(priv->cfg_bssid);
2226
2227                 if (ret > 0)
2228                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2229                                                 NULL, 0, NULL, 0, ret,
2230                                                 GFP_KERNEL);
2231                 else
2232                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2233                                                 NULL, 0, NULL, 0,
2234                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2235                                                 GFP_KERNEL);
2236         }
2237
2238         return 0;
2239 }
2240
2241 /*
2242  * This function sets following parameters for ibss network.
2243  *  -  channel
2244  *  -  start band
2245  *  -  11n flag
2246  *  -  secondary channel offset
2247  */
2248 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2249                                    struct cfg80211_ibss_params *params)
2250 {
2251         struct mwifiex_adapter *adapter = priv->adapter;
2252         int index = 0, i;
2253         u8 config_bands = 0;
2254
2255         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2256                 if (!params->basic_rates) {
2257                         config_bands = BAND_B | BAND_G;
2258                 } else {
2259                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2260                                 /*
2261                                  * Rates below 6 Mbps in the table are CCK
2262                                  * rates; 802.11b and from 6 they are OFDM;
2263                                  * 802.11G
2264                                  */
2265                                 if (mwifiex_rates[i].bitrate == 60) {
2266                                         index = 1 << i;
2267                                         break;
2268                                 }
2269                         }
2270
2271                         if (params->basic_rates < index) {
2272                                 config_bands = BAND_B;
2273                         } else {
2274                                 config_bands = BAND_G;
2275                                 if (params->basic_rates % index)
2276                                         config_bands |= BAND_B;
2277                         }
2278                 }
2279
2280                 if (cfg80211_get_chandef_type(&params->chandef) !=
2281                                                 NL80211_CHAN_NO_HT)
2282                         config_bands |= BAND_G | BAND_GN;
2283         } else {
2284                 if (cfg80211_get_chandef_type(&params->chandef) ==
2285                                                 NL80211_CHAN_NO_HT)
2286                         config_bands = BAND_A;
2287                 else
2288                         config_bands = BAND_AN | BAND_A;
2289         }
2290
2291         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2292                 adapter->config_bands = config_bands;
2293                 adapter->adhoc_start_band = config_bands;
2294
2295                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2296                         adapter->adhoc_11n_enabled = true;
2297                 else
2298                         adapter->adhoc_11n_enabled = false;
2299         }
2300
2301         adapter->sec_chan_offset =
2302                 mwifiex_chan_type_to_sec_chan_offset(
2303                         cfg80211_get_chandef_type(&params->chandef));
2304         priv->adhoc_channel = ieee80211_frequency_to_channel(
2305                                 params->chandef.chan->center_freq);
2306
2307         mwifiex_dbg(adapter, INFO,
2308                     "info: set ibss band %d, chan %d, chan offset %d\n",
2309                     config_bands, priv->adhoc_channel,
2310                     adapter->sec_chan_offset);
2311
2312         return 0;
2313 }
2314
2315 /*
2316  * CFG802.11 operation handler to join an IBSS.
2317  *
2318  * This function does not work in any mode other than Ad-Hoc, or if
2319  * a join operation is already in progress.
2320  */
2321 static int
2322 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2323                            struct cfg80211_ibss_params *params)
2324 {
2325         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2326         int ret = 0;
2327
2328         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2329                 mwifiex_dbg(priv->adapter, ERROR,
2330                             "request to join ibss received\t"
2331                             "when station is not in ibss mode\n");
2332                 goto done;
2333         }
2334
2335         mwifiex_dbg(priv->adapter, MSG,
2336                     "info: trying to join to %s and bssid %pM\n",
2337                     (char *)params->ssid, params->bssid);
2338
2339         mwifiex_set_ibss_params(priv, params);
2340
2341         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2342                                      params->bssid, priv->bss_mode,
2343                                      params->chandef.chan, NULL,
2344                                      params->privacy);
2345 done:
2346         if (!ret) {
2347                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2348                                      params->chandef.chan, GFP_KERNEL);
2349                 mwifiex_dbg(priv->adapter, MSG,
2350                             "info: joined/created adhoc network with bssid\t"
2351                             "%pM successfully\n", priv->cfg_bssid);
2352         } else {
2353                 mwifiex_dbg(priv->adapter, ERROR,
2354                             "info: failed creating/joining adhoc network\n");
2355         }
2356
2357         return ret;
2358 }
2359
2360 /*
2361  * CFG802.11 operation handler to leave an IBSS.
2362  *
2363  * This function does not work if a leave operation is
2364  * already in progress.
2365  */
2366 static int
2367 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2368 {
2369         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2370
2371         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2372                     priv->cfg_bssid);
2373         if (mwifiex_deauthenticate(priv, NULL))
2374                 return -EFAULT;
2375
2376         eth_zero_addr(priv->cfg_bssid);
2377
2378         return 0;
2379 }
2380
2381 /*
2382  * CFG802.11 operation handler for scan request.
2383  *
2384  * This function issues a scan request to the firmware based upon
2385  * the user specified scan configuration. On successful completion,
2386  * it also informs the results.
2387  */
2388 static int
2389 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2390                       struct cfg80211_scan_request *request)
2391 {
2392         struct net_device *dev = request->wdev->netdev;
2393         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2394         int i, offset, ret;
2395         struct ieee80211_channel *chan;
2396         struct ieee_types_header *ie;
2397         struct mwifiex_user_scan_cfg *user_scan_cfg;
2398
2399         mwifiex_dbg(priv->adapter, CMD,
2400                     "info: received scan request on %s\n", dev->name);
2401
2402         /* Block scan request if scan operation or scan cleanup when interface
2403          * is disabled is in process
2404          */
2405         if (priv->scan_request || priv->scan_aborting) {
2406                 mwifiex_dbg(priv->adapter, WARN,
2407                             "cmd: Scan already in process..\n");
2408                 return -EBUSY;
2409         }
2410
2411         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2412         if (!user_scan_cfg)
2413                 return -ENOMEM;
2414
2415         priv->scan_request = request;
2416
2417         user_scan_cfg->num_ssids = request->n_ssids;
2418         user_scan_cfg->ssid_list = request->ssids;
2419
2420         if (request->ie && request->ie_len) {
2421                 offset = 0;
2422                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2423                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2424                                 continue;
2425                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2426                         ie = (struct ieee_types_header *)(request->ie + offset);
2427                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2428                         offset += sizeof(*ie) + ie->len;
2429
2430                         if (offset >= request->ie_len)
2431                                 break;
2432                 }
2433         }
2434
2435         for (i = 0; i < min_t(u32, request->n_channels,
2436                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2437                 chan = request->channels[i];
2438                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2439                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2440
2441                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2442                         user_scan_cfg->chan_list[i].scan_type =
2443                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2444                 else
2445                         user_scan_cfg->chan_list[i].scan_type =
2446                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2447
2448                 user_scan_cfg->chan_list[i].scan_time = 0;
2449         }
2450
2451         if (priv->adapter->scan_chan_gap_enabled &&
2452             mwifiex_is_any_intf_active(priv))
2453                 user_scan_cfg->scan_chan_gap =
2454                                               priv->adapter->scan_chan_gap_time;
2455
2456         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2457         kfree(user_scan_cfg);
2458         if (ret) {
2459                 mwifiex_dbg(priv->adapter, ERROR,
2460                             "scan failed: %d\n", ret);
2461                 priv->scan_aborting = false;
2462                 priv->scan_request = NULL;
2463                 return ret;
2464         }
2465
2466         if (request->ie && request->ie_len) {
2467                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2468                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2469                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2470                                 memset(&priv->vs_ie[i].ie, 0,
2471                                        MWIFIEX_MAX_VSIE_LEN);
2472                         }
2473                 }
2474         }
2475         return 0;
2476 }
2477
2478 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2479                                    struct mwifiex_private *priv)
2480 {
2481         struct mwifiex_adapter *adapter = priv->adapter;
2482
2483         vht_info->vht_supported = true;
2484
2485         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2486         /* Update MCS support for VHT */
2487         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2488                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2489         vht_info->vht_mcs.rx_highest = 0;
2490         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2491                                 adapter->hw_dot_11ac_mcs_support >> 16);
2492         vht_info->vht_mcs.tx_highest = 0;
2493 }
2494
2495 /*
2496  * This function sets up the CFG802.11 specific HT capability fields
2497  * with default values.
2498  *
2499  * The following default values are set -
2500  *      - HT Supported = True
2501  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2502  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2503  *      - HT Capabilities supported by firmware
2504  *      - MCS information, Rx mask = 0xff
2505  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2506  */
2507 static void
2508 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2509                       struct mwifiex_private *priv)
2510 {
2511         int rx_mcs_supp;
2512         struct ieee80211_mcs_info mcs_set;
2513         u8 *mcs = (u8 *)&mcs_set;
2514         struct mwifiex_adapter *adapter = priv->adapter;
2515
2516         ht_info->ht_supported = true;
2517         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2518         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2519
2520         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2521
2522         /* Fill HT capability information */
2523         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2524                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2525         else
2526                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2527
2528         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2529                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2530         else
2531                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2532
2533         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2534                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2535         else
2536                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2537
2538         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2539                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2540         else
2541                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2542
2543         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2544                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2545         else
2546                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2547
2548         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2549                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2550         else
2551                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2552
2553         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2554                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2555         else
2556                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2557
2558         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2559                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2560         else
2561                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2562
2563         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2564         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2565
2566         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2567         /* Set MCS for 1x1/2x2 */
2568         memset(mcs, 0xff, rx_mcs_supp);
2569         /* Clear all the other values */
2570         memset(&mcs[rx_mcs_supp], 0,
2571                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2572         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2573             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2574                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2575                 SETHT_MCS32(mcs_set.rx_mask);
2576
2577         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2578
2579         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2580 }
2581
2582 /*
2583  *  create a new virtual interface with the given name and name assign type
2584  */
2585 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2586                                               const char *name,
2587                                               unsigned char name_assign_type,
2588                                               enum nl80211_iftype type,
2589                                               u32 *flags,
2590                                               struct vif_params *params)
2591 {
2592         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2593         struct mwifiex_private *priv;
2594         struct net_device *dev;
2595         void *mdev_priv;
2596
2597         if (!adapter)
2598                 return ERR_PTR(-EFAULT);
2599
2600         switch (type) {
2601         case NL80211_IFTYPE_UNSPECIFIED:
2602         case NL80211_IFTYPE_STATION:
2603         case NL80211_IFTYPE_ADHOC:
2604                 if (adapter->curr_iface_comb.sta_intf ==
2605                     adapter->iface_limit.sta_intf) {
2606                         mwifiex_dbg(adapter, ERROR,
2607                                     "cannot create multiple sta/adhoc ifaces\n");
2608                         return ERR_PTR(-EINVAL);
2609                 }
2610
2611                 priv = mwifiex_get_unused_priv(adapter);
2612                 if (!priv) {
2613                         mwifiex_dbg(adapter, ERROR,
2614                                     "could not get free private struct\n");
2615                         return ERR_PTR(-EFAULT);
2616                 }
2617
2618                 priv->wdev.wiphy = wiphy;
2619                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2620
2621                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2622                         priv->bss_mode = NL80211_IFTYPE_STATION;
2623                 else
2624                         priv->bss_mode = type;
2625
2626                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2627                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2628                 priv->bss_priority = 0;
2629                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2630                 priv->bss_num = adapter->curr_iface_comb.sta_intf;
2631
2632                 break;
2633         case NL80211_IFTYPE_AP:
2634                 if (adapter->curr_iface_comb.uap_intf ==
2635                     adapter->iface_limit.uap_intf) {
2636                         mwifiex_dbg(adapter, ERROR,
2637                                     "cannot create multiple AP ifaces\n");
2638                         return ERR_PTR(-EINVAL);
2639                 }
2640
2641                 priv = mwifiex_get_unused_priv(adapter);
2642                 if (!priv) {
2643                         mwifiex_dbg(adapter, ERROR,
2644                                     "could not get free private struct\n");
2645                         return ERR_PTR(-EFAULT);
2646                 }
2647
2648                 priv->wdev.wiphy = wiphy;
2649                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2650
2651                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2652                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2653                 priv->bss_priority = 0;
2654                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2655                 priv->bss_started = 0;
2656                 priv->bss_num = adapter->curr_iface_comb.uap_intf;
2657                 priv->bss_mode = type;
2658
2659                 break;
2660         case NL80211_IFTYPE_P2P_CLIENT:
2661                 if (adapter->curr_iface_comb.p2p_intf ==
2662                     adapter->iface_limit.p2p_intf) {
2663                         mwifiex_dbg(adapter, ERROR,
2664                                     "cannot create multiple P2P ifaces\n");
2665                         return ERR_PTR(-EINVAL);
2666                 }
2667
2668                 priv = mwifiex_get_unused_priv(adapter);
2669                 if (!priv) {
2670                         mwifiex_dbg(adapter, ERROR,
2671                                     "could not get free private struct\n");
2672                         return ERR_PTR(-EFAULT);
2673                 }
2674
2675                 priv->wdev.wiphy = wiphy;
2676                 /* At start-up, wpa_supplicant tries to change the interface
2677                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2678                  */
2679                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2680                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2681
2682                 /* Setting bss_type to P2P tells firmware that this interface
2683                  * is receiving P2P peers found during find phase and doing
2684                  * action frame handshake.
2685                  */
2686                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2687
2688                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2689                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2690                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2691                 priv->bss_started = 0;
2692                 priv->bss_num = adapter->curr_iface_comb.p2p_intf;
2693
2694                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2695                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2696                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2697                         return ERR_PTR(-EFAULT);
2698                 }
2699
2700                 break;
2701         default:
2702                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2703                 return ERR_PTR(-EINVAL);
2704         }
2705
2706         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2707                                name_assign_type, ether_setup,
2708                                IEEE80211_NUM_ACS, 1);
2709         if (!dev) {
2710                 mwifiex_dbg(adapter, ERROR,
2711                             "no memory available for netdevice\n");
2712                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2713                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2714                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2715                 return ERR_PTR(-ENOMEM);
2716         }
2717
2718         mwifiex_init_priv_params(priv, dev);
2719         priv->netdev = dev;
2720
2721         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2722         if (adapter->is_hw_11ac_capable)
2723                 mwifiex_setup_vht_caps(
2724                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2725
2726         if (adapter->config_bands & BAND_A)
2727                 mwifiex_setup_ht_caps(
2728                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2729
2730         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2731                 mwifiex_setup_vht_caps(
2732                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2733
2734         dev_net_set(dev, wiphy_net(wiphy));
2735         dev->ieee80211_ptr = &priv->wdev;
2736         dev->ieee80211_ptr->iftype = priv->bss_mode;
2737         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2738         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2739
2740         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2741         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2742         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2743         dev->ethtool_ops = &mwifiex_ethtool_ops;
2744
2745         mdev_priv = netdev_priv(dev);
2746         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2747
2748         SET_NETDEV_DEV(dev, adapter->dev);
2749
2750         /* Register network device */
2751         if (register_netdevice(dev)) {
2752                 mwifiex_dbg(adapter, ERROR,
2753                             "cannot register virtual network device\n");
2754                 free_netdev(dev);
2755                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2756                 priv->netdev = NULL;
2757                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2758                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2759                 return ERR_PTR(-EFAULT);
2760         }
2761
2762         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2763                                                   WQ_HIGHPRI |
2764                                                   WQ_MEM_RECLAIM |
2765                                                   WQ_UNBOUND, 1, name);
2766         if (!priv->dfs_cac_workqueue) {
2767                 mwifiex_dbg(adapter, ERROR,
2768                             "cannot register virtual network device\n");
2769                 free_netdev(dev);
2770                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2771                 priv->netdev = NULL;
2772                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2773                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2774                 return ERR_PTR(-ENOMEM);
2775         }
2776
2777         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2778
2779         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2780                                                       WQ_HIGHPRI | WQ_UNBOUND |
2781                                                       WQ_MEM_RECLAIM, 1, name);
2782         if (!priv->dfs_chan_sw_workqueue) {
2783                 mwifiex_dbg(adapter, ERROR,
2784                             "cannot register virtual network device\n");
2785                 free_netdev(dev);
2786                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2787                 priv->netdev = NULL;
2788                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2789                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2790                 return ERR_PTR(-ENOMEM);
2791         }
2792
2793         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
2794                           mwifiex_dfs_chan_sw_work_queue);
2795
2796         sema_init(&priv->async_sem, 1);
2797
2798         mwifiex_dbg(adapter, INFO,
2799                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
2800
2801 #ifdef CONFIG_DEBUG_FS
2802         mwifiex_dev_debugfs_init(priv);
2803 #endif
2804
2805         switch (type) {
2806         case NL80211_IFTYPE_UNSPECIFIED:
2807         case NL80211_IFTYPE_STATION:
2808         case NL80211_IFTYPE_ADHOC:
2809                 adapter->curr_iface_comb.sta_intf++;
2810                 break;
2811         case NL80211_IFTYPE_AP:
2812                 adapter->curr_iface_comb.uap_intf++;
2813                 break;
2814         case NL80211_IFTYPE_P2P_CLIENT:
2815                 adapter->curr_iface_comb.p2p_intf++;
2816                 break;
2817         default:
2818                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2819                 return ERR_PTR(-EINVAL);
2820         }
2821
2822         return &priv->wdev;
2823 }
2824 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2825
2826 /*
2827  * del_virtual_intf: remove the virtual interface determined by dev
2828  */
2829 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2830 {
2831         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2832         struct mwifiex_adapter *adapter = priv->adapter;
2833         struct sk_buff *skb, *tmp;
2834
2835 #ifdef CONFIG_DEBUG_FS
2836         mwifiex_dev_debugfs_remove(priv);
2837 #endif
2838
2839         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2840
2841         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp)
2842                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
2843
2844         if (netif_carrier_ok(priv->netdev))
2845                 netif_carrier_off(priv->netdev);
2846
2847         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2848                 unregister_netdevice(wdev->netdev);
2849
2850         if (priv->dfs_cac_workqueue) {
2851                 flush_workqueue(priv->dfs_cac_workqueue);
2852                 destroy_workqueue(priv->dfs_cac_workqueue);
2853                 priv->dfs_cac_workqueue = NULL;
2854         }
2855
2856         if (priv->dfs_chan_sw_workqueue) {
2857                 flush_workqueue(priv->dfs_chan_sw_workqueue);
2858                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
2859                 priv->dfs_chan_sw_workqueue = NULL;
2860         }
2861         /* Clear the priv in adapter */
2862         priv->netdev->ieee80211_ptr = NULL;
2863         priv->netdev = NULL;
2864         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2865
2866         priv->media_connected = false;
2867
2868         switch (priv->bss_mode) {
2869         case NL80211_IFTYPE_UNSPECIFIED:
2870         case NL80211_IFTYPE_STATION:
2871         case NL80211_IFTYPE_ADHOC:
2872                 adapter->curr_iface_comb.sta_intf--;
2873                 break;
2874         case NL80211_IFTYPE_AP:
2875                 adapter->curr_iface_comb.uap_intf--;
2876                 break;
2877         case NL80211_IFTYPE_P2P_CLIENT:
2878         case NL80211_IFTYPE_P2P_GO:
2879                 adapter->curr_iface_comb.p2p_intf--;
2880                 break;
2881         default:
2882                 mwifiex_dbg(adapter, ERROR,
2883                             "del_virtual_intf: type not supported\n");
2884                 break;
2885         }
2886
2887         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2888
2889         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2890             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2891                 kfree(priv->hist_data);
2892
2893         return 0;
2894 }
2895 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2896
2897 static bool
2898 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2899                              u8 max_byte_seq)
2900 {
2901         int j, k, valid_byte_cnt = 0;
2902         bool dont_care_byte = false;
2903
2904         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2905                 for (k = 0; k < 8; k++) {
2906                         if (pat->mask[j] & 1 << k) {
2907                                 memcpy(byte_seq + valid_byte_cnt,
2908                                        &pat->pattern[j * 8 + k], 1);
2909                                 valid_byte_cnt++;
2910                                 if (dont_care_byte)
2911                                         return false;
2912                         } else {
2913                                 if (valid_byte_cnt)
2914                                         dont_care_byte = true;
2915                         }
2916
2917                         if (valid_byte_cnt > max_byte_seq)
2918                                 return false;
2919                 }
2920         }
2921
2922         byte_seq[max_byte_seq] = valid_byte_cnt;
2923
2924         return true;
2925 }
2926
2927 #ifdef CONFIG_PM
2928 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
2929                                            struct mwifiex_mef_entry *mef_entry)
2930 {
2931         int i, filt_num = 0, num_ipv4 = 0;
2932         struct in_device *in_dev;
2933         struct in_ifaddr *ifa;
2934         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
2935         struct mwifiex_adapter *adapter = priv->adapter;
2936
2937         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2938         mef_entry->action = MEF_ACTION_AUTO_ARP;
2939
2940         /* Enable ARP offload feature */
2941         memset(ips, 0, sizeof(ips));
2942         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
2943                 if (adapter->priv[i]->netdev) {
2944                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
2945                         if (!in_dev)
2946                                 continue;
2947                         ifa = in_dev->ifa_list;
2948                         if (!ifa || !ifa->ifa_local)
2949                                 continue;
2950                         ips[i] = ifa->ifa_local;
2951                         num_ipv4++;
2952                 }
2953         }
2954
2955         for (i = 0; i < num_ipv4; i++) {
2956                 if (!ips[i])
2957                         continue;
2958                 mef_entry->filter[filt_num].repeat = 1;
2959                 memcpy(mef_entry->filter[filt_num].byte_seq,
2960                        (u8 *)&ips[i], sizeof(ips[i]));
2961                 mef_entry->filter[filt_num].
2962                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2963                         sizeof(ips[i]);
2964                 mef_entry->filter[filt_num].offset = 46;
2965                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2966                 if (filt_num) {
2967                         mef_entry->filter[filt_num].filt_action =
2968                                 TYPE_OR;
2969                 }
2970                 filt_num++;
2971         }
2972
2973         mef_entry->filter[filt_num].repeat = 1;
2974         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
2975         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
2976         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
2977         mef_entry->filter[filt_num].offset = 20;
2978         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2979         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2980 }
2981
2982 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
2983                                         struct mwifiex_ds_mef_cfg *mef_cfg,
2984                                         struct mwifiex_mef_entry *mef_entry,
2985                                         struct cfg80211_wowlan *wowlan)
2986 {
2987         int i, filt_num = 0, ret = 0;
2988         bool first_pat = true;
2989         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2990         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2991         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2992
2993         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2994         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2995
2996         for (i = 0; i < wowlan->n_patterns; i++) {
2997                 memset(byte_seq, 0, sizeof(byte_seq));
2998                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2999                                         byte_seq,
3000                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3001                         mwifiex_dbg(priv->adapter, ERROR,
3002                                     "Pattern not supported\n");
3003                         return -EOPNOTSUPP;
3004                 }
3005
3006                 if (!wowlan->patterns[i].pkt_offset) {
3007                         if (!(byte_seq[0] & 0x01) &&
3008                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3009                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3010                                 continue;
3011                         } else if (is_broadcast_ether_addr(byte_seq)) {
3012                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3013                                 continue;
3014                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3015                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3016                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3017                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3018                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3019                                 continue;
3020                         }
3021                 }
3022                 mef_entry->filter[filt_num].repeat = 1;
3023                 mef_entry->filter[filt_num].offset =
3024                         wowlan->patterns[i].pkt_offset;
3025                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3026                                 sizeof(byte_seq));
3027                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3028
3029                 if (first_pat)
3030                         first_pat = false;
3031                 else
3032                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3033
3034                 filt_num++;
3035         }
3036
3037         if (wowlan->magic_pkt) {
3038                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3039                 mef_entry->filter[filt_num].repeat = 16;
3040                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3041                                 ETH_ALEN);
3042                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3043                         ETH_ALEN;
3044                 mef_entry->filter[filt_num].offset = 28;
3045                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3046                 if (filt_num)
3047                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3048
3049                 filt_num++;
3050                 mef_entry->filter[filt_num].repeat = 16;
3051                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3052                                 ETH_ALEN);
3053                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3054                         ETH_ALEN;
3055                 mef_entry->filter[filt_num].offset = 56;
3056                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3057                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3058         }
3059         return ret;
3060 }
3061
3062 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3063                                   struct cfg80211_wowlan *wowlan)
3064 {
3065         int ret = 0, num_entries = 1;
3066         struct mwifiex_ds_mef_cfg mef_cfg;
3067         struct mwifiex_mef_entry *mef_entry;
3068
3069         if (wowlan->n_patterns || wowlan->magic_pkt)
3070                 num_entries++;
3071
3072         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3073         if (!mef_entry)
3074                 return -ENOMEM;
3075
3076         memset(&mef_cfg, 0, sizeof(mef_cfg));
3077         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3078                 MWIFIEX_CRITERIA_UNICAST;
3079         mef_cfg.num_entries = num_entries;
3080         mef_cfg.mef_entry = mef_entry;
3081
3082         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3083
3084         if (wowlan->n_patterns || wowlan->magic_pkt) {
3085                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3086                                                    &mef_entry[1], wowlan);
3087                 if (ret)
3088                         goto err;
3089         }
3090
3091         if (!mef_cfg.criteria)
3092                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3093                         MWIFIEX_CRITERIA_UNICAST |
3094                         MWIFIEX_CRITERIA_MULTICAST;
3095
3096         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3097                         HostCmd_ACT_GEN_SET, 0,
3098                         &mef_cfg, true);
3099
3100 err:
3101         kfree(mef_entry);
3102         return ret;
3103 }
3104
3105 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3106                                     struct cfg80211_wowlan *wowlan)
3107 {
3108         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3109         struct mwifiex_ds_hs_cfg hs_cfg;
3110         int i, ret = 0;
3111         struct mwifiex_private *priv;
3112
3113         for (i = 0; i < adapter->priv_num; i++) {
3114                 priv = adapter->priv[i];
3115                 mwifiex_abort_cac(priv);
3116         }
3117
3118         mwifiex_cancel_all_pending_cmd(adapter);
3119
3120         if (!wowlan) {
3121                 mwifiex_dbg(adapter, ERROR,
3122                             "None of the WOWLAN triggers enabled\n");
3123                 return 0;
3124         }
3125
3126         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3127
3128         if (!priv->media_connected) {
3129                 mwifiex_dbg(adapter, ERROR,
3130                             "Can not configure WOWLAN in disconnected state\n");
3131                 return 0;
3132         }
3133
3134         ret = mwifiex_set_mef_filter(priv, wowlan);
3135         if (ret) {
3136                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3137                 return ret;
3138         }
3139
3140         if (wowlan->disconnect) {
3141                 memset(&hs_cfg, 0, sizeof(hs_cfg));
3142                 hs_cfg.is_invoke_hostcmd = false;
3143                 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
3144                 hs_cfg.gpio = HS_CFG_GPIO_DEF;
3145                 hs_cfg.gap = HS_CFG_GAP_DEF;
3146                 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
3147                                             MWIFIEX_SYNC_CMD, &hs_cfg);
3148                 if (ret) {
3149                         mwifiex_dbg(adapter, ERROR,
3150                                     "Failed to set HS params\n");
3151                         return ret;
3152                 }
3153         }
3154
3155         return ret;
3156 }
3157
3158 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3159 {
3160         return 0;
3161 }
3162
3163 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3164                                        bool enabled)
3165 {
3166         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3167
3168         device_set_wakeup_enable(adapter->dev, enabled);
3169 }
3170 #endif
3171
3172 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3173 {
3174         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3175         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3176         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3177
3178         if ((byte_seq[0] & 0x01) &&
3179             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3180                 return PACKET_TYPE_UNICAST;
3181         else if (!memcmp(byte_seq, bc_mac, 4))
3182                 return PACKET_TYPE_BROADCAST;
3183         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3184                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3185                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3186                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3187                 return PACKET_TYPE_MULTICAST;
3188
3189         return 0;
3190 }
3191
3192 static int
3193 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3194                                 struct cfg80211_coalesce_rules *crule,
3195                                 struct mwifiex_coalesce_rule *mrule)
3196 {
3197         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3198         struct filt_field_param *param;
3199         int i;
3200
3201         mrule->max_coalescing_delay = crule->delay;
3202
3203         param = mrule->params;
3204
3205         for (i = 0; i < crule->n_patterns; i++) {
3206                 memset(byte_seq, 0, sizeof(byte_seq));
3207                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3208                                                   byte_seq,
3209                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3210                         mwifiex_dbg(priv->adapter, ERROR,
3211                                     "Pattern not supported\n");
3212                         return -EOPNOTSUPP;
3213                 }
3214
3215                 if (!crule->patterns[i].pkt_offset) {
3216                         u8 pkt_type;
3217
3218                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3219                         if (pkt_type && mrule->pkt_type) {
3220                                 mwifiex_dbg(priv->adapter, ERROR,
3221                                             "Multiple packet types not allowed\n");
3222                                 return -EOPNOTSUPP;
3223                         } else if (pkt_type) {
3224                                 mrule->pkt_type = pkt_type;
3225                                 continue;
3226                         }
3227                 }
3228
3229                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3230                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3231                 else
3232                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3233
3234                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3235                 memcpy(param->operand_byte_stream, byte_seq,
3236                        param->operand_len);
3237                 param->offset = crule->patterns[i].pkt_offset;
3238                 param++;
3239
3240                 mrule->num_of_fields++;
3241         }
3242
3243         if (!mrule->pkt_type) {
3244                 mwifiex_dbg(priv->adapter, ERROR,
3245                             "Packet type can not be determined\n");
3246                 return -EOPNOTSUPP;
3247         }
3248
3249         return 0;
3250 }
3251
3252 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3253                                          struct cfg80211_coalesce *coalesce)
3254 {
3255         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3256         int i, ret;
3257         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3258         struct mwifiex_private *priv =
3259                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3260
3261         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3262         if (!coalesce) {
3263                 mwifiex_dbg(adapter, WARN,
3264                             "Disable coalesce and reset all previous rules\n");
3265                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3266                                         HostCmd_ACT_GEN_SET, 0,
3267                                         &coalesce_cfg, true);
3268         }
3269
3270         coalesce_cfg.num_of_rules = coalesce->n_rules;
3271         for (i = 0; i < coalesce->n_rules; i++) {
3272                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3273                                                       &coalesce_cfg.rule[i]);
3274                 if (ret) {
3275                         mwifiex_dbg(adapter, ERROR,
3276                                     "Recheck the patterns provided for rule %d\n",
3277                                 i + 1);
3278                         return ret;
3279                 }
3280         }
3281
3282         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3283                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3284 }
3285
3286 /* cfg80211 ops handler for tdls_mgmt.
3287  * Function prepares TDLS action frame packets and forwards them to FW
3288  */
3289 static int
3290 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3291                            const u8 *peer, u8 action_code, u8 dialog_token,
3292                            u16 status_code, u32 peer_capability,
3293                            bool initiator, const u8 *extra_ies,
3294                            size_t extra_ies_len)
3295 {
3296         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3297         int ret;
3298
3299         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3300                 return -ENOTSUPP;
3301
3302         /* make sure we are in station mode and connected */
3303         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3304                 return -ENOTSUPP;
3305
3306         switch (action_code) {
3307         case WLAN_TDLS_SETUP_REQUEST:
3308                 mwifiex_dbg(priv->adapter, MSG,
3309                             "Send TDLS Setup Request to %pM status_code=%d\n",
3310                             peer, status_code);
3311                 mwifiex_add_auto_tdls_peer(priv, peer);
3312                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3313                                                    dialog_token, status_code,
3314                                                    extra_ies, extra_ies_len);
3315                 break;
3316         case WLAN_TDLS_SETUP_RESPONSE:
3317                 mwifiex_add_auto_tdls_peer(priv, peer);
3318                 mwifiex_dbg(priv->adapter, MSG,
3319                             "Send TDLS Setup Response to %pM status_code=%d\n",
3320                             peer, status_code);
3321                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3322                                                    dialog_token, status_code,
3323                                                    extra_ies, extra_ies_len);
3324                 break;
3325         case WLAN_TDLS_SETUP_CONFIRM:
3326                 mwifiex_dbg(priv->adapter, MSG,
3327                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3328                             status_code);
3329                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3330                                                    dialog_token, status_code,
3331                                                    extra_ies, extra_ies_len);
3332                 break;
3333         case WLAN_TDLS_TEARDOWN:
3334                 mwifiex_dbg(priv->adapter, MSG,
3335                             "Send TDLS Tear down to %pM\n", peer);
3336                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3337                                                    dialog_token, status_code,
3338                                                    extra_ies, extra_ies_len);
3339                 break;
3340         case WLAN_TDLS_DISCOVERY_REQUEST:
3341                 mwifiex_dbg(priv->adapter, MSG,
3342                             "Send TDLS Discovery Request to %pM\n", peer);
3343                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3344                                                    dialog_token, status_code,
3345                                                    extra_ies, extra_ies_len);
3346                 break;
3347         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3348                 mwifiex_dbg(priv->adapter, MSG,
3349                             "Send TDLS Discovery Response to %pM\n", peer);
3350                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3351                                                    dialog_token, status_code,
3352                                                    extra_ies, extra_ies_len);
3353                 break;
3354         default:
3355                 mwifiex_dbg(priv->adapter, ERROR,
3356                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3357                 ret = -EINVAL;
3358                 break;
3359         }
3360
3361         return ret;
3362 }
3363
3364 static int
3365 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3366                            const u8 *peer, enum nl80211_tdls_operation action)
3367 {
3368         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3369
3370         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3371             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3372                 return -ENOTSUPP;
3373
3374         /* make sure we are in station mode and connected */
3375         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3376                 return -ENOTSUPP;
3377
3378         mwifiex_dbg(priv->adapter, MSG,
3379                     "TDLS peer=%pM, oper=%d\n", peer, action);
3380
3381         switch (action) {
3382         case NL80211_TDLS_ENABLE_LINK:
3383                 action = MWIFIEX_TDLS_ENABLE_LINK;
3384                 break;
3385         case NL80211_TDLS_DISABLE_LINK:
3386                 action = MWIFIEX_TDLS_DISABLE_LINK;
3387                 break;
3388         case NL80211_TDLS_TEARDOWN:
3389                 /* shouldn't happen!*/
3390                 mwifiex_dbg(priv->adapter, ERROR,
3391                             "tdls_oper: teardown from driver not supported\n");
3392                 return -EINVAL;
3393         case NL80211_TDLS_SETUP:
3394                 /* shouldn't happen!*/
3395                 mwifiex_dbg(priv->adapter, ERROR,
3396                             "tdls_oper: setup from driver not supported\n");
3397                 return -EINVAL;
3398         case NL80211_TDLS_DISCOVERY_REQ:
3399                 /* shouldn't happen!*/
3400                 mwifiex_dbg(priv->adapter, ERROR,
3401                             "tdls_oper: discovery from driver not supported\n");
3402                 return -EINVAL;
3403         default:
3404                 mwifiex_dbg(priv->adapter, ERROR,
3405                             "tdls_oper: operation not supported\n");
3406                 return -ENOTSUPP;
3407         }
3408
3409         return mwifiex_tdls_oper(priv, peer, action);
3410 }
3411
3412 static int
3413 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3414                                   const u8 *addr, u8 oper_class,
3415                                   struct cfg80211_chan_def *chandef)
3416 {
3417         struct mwifiex_sta_node *sta_ptr;
3418         unsigned long flags;
3419         u16 chan;
3420         u8 second_chan_offset, band;
3421         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3422
3423         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3424         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3425         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3426
3427         if (!sta_ptr) {
3428                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3429                           __func__, addr);
3430                 return -ENOENT;
3431         }
3432
3433         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3434               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3435                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3436                 return -ENOENT;
3437         }
3438
3439         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3440             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3441                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3442                 return -EALREADY;
3443         }
3444
3445         chan = chandef->chan->hw_value;
3446         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3447         band = chandef->chan->band;
3448         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3449
3450         return 0;
3451 }
3452
3453 static void
3454 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3455                                          struct net_device *dev,
3456                                          const u8 *addr)
3457 {
3458         struct mwifiex_sta_node *sta_ptr;
3459         unsigned long flags;
3460         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3461
3462         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3463         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3464         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3465
3466         if (!sta_ptr) {
3467                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3468                           __func__, addr);
3469         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3470                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3471                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3472                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3473                           addr);
3474         } else
3475                 mwifiex_stop_tdls_cs(priv, addr);
3476 }
3477
3478 static int
3479 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3480                              const u8 *mac, struct station_parameters *params)
3481 {
3482         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3483
3484         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3485                 return -ENOTSUPP;
3486
3487         /* make sure we are in station mode and connected */
3488         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3489                 return -ENOTSUPP;
3490
3491         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3492 }
3493
3494 static int
3495 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3496                                 struct cfg80211_csa_settings *params)
3497 {
3498         struct ieee_types_header *chsw_ie;
3499         struct ieee80211_channel_sw_ie *channel_sw;
3500         int chsw_msec;
3501         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3502
3503         if (priv->adapter->scan_processing) {
3504                 mwifiex_dbg(priv->adapter, ERROR,
3505                             "radar detection: scan in process...\n");
3506                 return -EBUSY;
3507         }
3508
3509         if (priv->wdev.cac_started)
3510                 return -EBUSY;
3511
3512         if (cfg80211_chandef_identical(&params->chandef,
3513                                        &priv->dfs_chandef))
3514                 return -EINVAL;
3515
3516         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3517                                            params->beacon_csa.tail,
3518                                            params->beacon_csa.tail_len);
3519         if (!chsw_ie) {
3520                 mwifiex_dbg(priv->adapter, ERROR,
3521                             "Could not parse channel switch announcement IE\n");
3522                 return -EINVAL;
3523         }
3524
3525         channel_sw = (void *)(chsw_ie + 1);
3526         if (channel_sw->mode) {
3527                 if (netif_carrier_ok(priv->netdev))
3528                         netif_carrier_off(priv->netdev);
3529                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3530         }
3531
3532         if (mwifiex_del_mgmt_ies(priv))
3533                 mwifiex_dbg(priv->adapter, ERROR,
3534                             "Failed to delete mgmt IEs!\n");
3535
3536         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3537                 mwifiex_dbg(priv->adapter, ERROR,
3538                             "%s: setting mgmt ies failed\n", __func__);
3539                 return -EFAULT;
3540         }
3541
3542         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3543         memcpy(&priv->beacon_after, &params->beacon_after,
3544                sizeof(priv->beacon_after));
3545
3546         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3547         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3548                            msecs_to_jiffies(chsw_msec));
3549         return 0;
3550 }
3551
3552 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3553                                         struct wireless_dev *wdev,
3554                                         struct cfg80211_chan_def *chandef)
3555 {
3556         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3557         struct mwifiex_bssdescriptor *curr_bss;
3558         struct ieee80211_channel *chan;
3559         u8 second_chan_offset;
3560         enum nl80211_channel_type chan_type;
3561         enum ieee80211_band band;
3562         int freq;
3563         int ret = -ENODATA;
3564
3565         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3566             cfg80211_chandef_valid(&priv->bss_chandef)) {
3567                 *chandef = priv->bss_chandef;
3568                 ret = 0;
3569         } else if (priv->media_connected) {
3570                 curr_bss = &priv->curr_bss_params.bss_descriptor;
3571                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3572                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3573                 chan = ieee80211_get_channel(wiphy, freq);
3574
3575                 if (curr_bss->bcn_ht_oper) {
3576                         second_chan_offset = curr_bss->bcn_ht_oper->ht_param &
3577                                         IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3578                         chan_type = mwifiex_sec_chan_offset_to_chan_type
3579                                                         (second_chan_offset);
3580                         cfg80211_chandef_create(chandef, chan, chan_type);
3581                 } else {
3582                         cfg80211_chandef_create(chandef, chan,
3583                                                 NL80211_CHAN_NO_HT);
3584                 }
3585                 ret = 0;
3586         }
3587
3588         return ret;
3589 }
3590
3591 static int
3592 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3593                                        struct net_device *dev,
3594                                        struct cfg80211_chan_def *chandef,
3595                                        u32 cac_time_ms)
3596 {
3597         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3598         struct mwifiex_radar_params radar_params;
3599
3600         if (priv->adapter->scan_processing) {
3601                 mwifiex_dbg(priv->adapter, ERROR,
3602                             "radar detection: scan already in process...\n");
3603                 return -EBUSY;
3604         }
3605
3606         if (!mwifiex_is_11h_active(priv)) {
3607                 mwifiex_dbg(priv->adapter, INFO,
3608                             "Enable 11h extensions in FW\n");
3609                 if (mwifiex_11h_activate(priv, true)) {
3610                         mwifiex_dbg(priv->adapter, ERROR,
3611                                     "Failed to activate 11h extensions!!");
3612                         return -1;
3613                 }
3614                 priv->state_11h.is_11h_active = true;
3615         }
3616
3617         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3618         radar_params.chandef = chandef;
3619         radar_params.cac_time_ms = cac_time_ms;
3620
3621         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3622
3623         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3624                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3625                 return -1;
3626
3627         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3628                            msecs_to_jiffies(cac_time_ms));
3629         return 0;
3630 }
3631
3632 static int
3633 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3634                                 const u8 *mac,
3635                                 struct station_parameters *params)
3636 {
3637         int ret;
3638         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3639
3640         /* we support change_station handler only for TDLS peers*/
3641         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3642                 return -ENOTSUPP;
3643
3644         /* make sure we are in station mode and connected */
3645         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3646                 return -ENOTSUPP;
3647
3648         priv->sta_params = params;
3649
3650         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3651         priv->sta_params = NULL;
3652
3653         return ret;
3654 }
3655
3656 /* station cfg80211 operations */
3657 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3658         .add_virtual_intf = mwifiex_add_virtual_intf,
3659         .del_virtual_intf = mwifiex_del_virtual_intf,
3660         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3661         .scan = mwifiex_cfg80211_scan,
3662         .connect = mwifiex_cfg80211_connect,
3663         .disconnect = mwifiex_cfg80211_disconnect,
3664         .get_station = mwifiex_cfg80211_get_station,
3665         .dump_station = mwifiex_cfg80211_dump_station,
3666         .dump_survey = mwifiex_cfg80211_dump_survey,
3667         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3668         .join_ibss = mwifiex_cfg80211_join_ibss,
3669         .leave_ibss = mwifiex_cfg80211_leave_ibss,
3670         .add_key = mwifiex_cfg80211_add_key,
3671         .del_key = mwifiex_cfg80211_del_key,
3672         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3673         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3674         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
3675         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3676         .set_default_key = mwifiex_cfg80211_set_default_key,
3677         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
3678         .set_tx_power = mwifiex_cfg80211_set_tx_power,
3679         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3680         .start_ap = mwifiex_cfg80211_start_ap,
3681         .stop_ap = mwifiex_cfg80211_stop_ap,
3682         .change_beacon = mwifiex_cfg80211_change_beacon,
3683         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3684         .set_antenna = mwifiex_cfg80211_set_antenna,
3685         .del_station = mwifiex_cfg80211_del_station,
3686 #ifdef CONFIG_PM
3687         .suspend = mwifiex_cfg80211_suspend,
3688         .resume = mwifiex_cfg80211_resume,
3689         .set_wakeup = mwifiex_cfg80211_set_wakeup,
3690 #endif
3691         .set_coalesce = mwifiex_cfg80211_set_coalesce,
3692         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3693         .tdls_oper = mwifiex_cfg80211_tdls_oper,
3694         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
3695         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
3696         .add_station = mwifiex_cfg80211_add_station,
3697         .change_station = mwifiex_cfg80211_change_station,
3698         .get_channel = mwifiex_cfg80211_get_channel,
3699         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3700         .channel_switch = mwifiex_cfg80211_channel_switch,
3701 };
3702
3703 #ifdef CONFIG_PM
3704 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3705         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
3706         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3707         .pattern_min_len = 1,
3708         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3709         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3710 };
3711 #endif
3712
3713 static bool mwifiex_is_valid_alpha2(const char *alpha2)
3714 {
3715         if (!alpha2 || strlen(alpha2) != 2)
3716                 return false;
3717
3718         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
3719                 return true;
3720
3721         return false;
3722 }
3723
3724 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
3725         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
3726         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
3727         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
3728         .pattern_min_len = 1,
3729         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3730         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3731 };
3732
3733 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
3734 {
3735         u32 n_channels_bg, n_channels_a = 0;
3736
3737         n_channels_bg = mwifiex_band_2ghz.n_channels;
3738
3739         if (adapter->config_bands & BAND_A)
3740                 n_channels_a = mwifiex_band_5ghz.n_channels;
3741
3742         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
3743         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
3744                                       adapter->num_in_chan_stats);
3745
3746         if (!adapter->chan_stats)
3747                 return -ENOMEM;
3748
3749         return 0;
3750 }
3751
3752 /*
3753  * This function registers the device with CFG802.11 subsystem.
3754  *
3755  * The function creates the wireless device/wiphy, populates it with
3756  * default parameters and handler function pointers, and finally
3757  * registers the device.
3758  */
3759
3760 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3761 {
3762         int ret;
3763         void *wdev_priv;
3764         struct wiphy *wiphy;
3765         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3766         u8 *country_code;
3767         u32 thr, retry;
3768
3769         /* create a new wiphy for use with cfg80211 */
3770         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
3771                           sizeof(struct mwifiex_adapter *));
3772         if (!wiphy) {
3773                 mwifiex_dbg(adapter, ERROR,
3774                             "%s: creating new wiphy\n", __func__);
3775                 return -ENOMEM;
3776         }
3777         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
3778         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
3779         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
3780         wiphy->max_remain_on_channel_duration = 5000;
3781         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3782                                  BIT(NL80211_IFTYPE_ADHOC) |
3783                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
3784                                  BIT(NL80211_IFTYPE_P2P_GO) |
3785                                  BIT(NL80211_IFTYPE_AP);
3786
3787         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
3788         if (adapter->config_bands & BAND_A)
3789                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
3790         else
3791                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
3792
3793         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
3794                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
3795         else if (adapter->is_hw_11ac_capable)
3796                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
3797         else
3798                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
3799         wiphy->n_iface_combinations = 1;
3800
3801         /* Initialize cipher suits */
3802         wiphy->cipher_suites = mwifiex_cipher_suites;
3803         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3804
3805         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
3806         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3807         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3808                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3809                         WIPHY_FLAG_AP_UAPSD |
3810                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3811                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
3812                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
3813
3814         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3815                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3816                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3817
3818 #ifdef CONFIG_PM
3819         wiphy->wowlan = &mwifiex_wowlan_support;
3820 #endif
3821
3822         wiphy->coalesce = &mwifiex_coalesce_support;
3823
3824         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3825                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3826                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3827
3828         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3829         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3830
3831         wiphy->features |= NL80211_FEATURE_HT_IBSS |
3832                            NL80211_FEATURE_INACTIVITY_TIMER |
3833                            NL80211_FEATURE_NEED_OBSS_SCAN;
3834
3835         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3836                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
3837
3838         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3839                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3840
3841         /* Reserve space for mwifiex specific private data for BSS */
3842         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3843
3844         wiphy->reg_notifier = mwifiex_reg_notifier;
3845
3846         /* Set struct mwifiex_adapter pointer in wiphy_priv */
3847         wdev_priv = wiphy_priv(wiphy);
3848         *(unsigned long *)wdev_priv = (unsigned long)adapter;
3849
3850         set_wiphy_dev(wiphy, priv->adapter->dev);
3851
3852         ret = wiphy_register(wiphy);
3853         if (ret < 0) {
3854                 mwifiex_dbg(adapter, ERROR,
3855                             "%s: wiphy_register failed: %d\n", __func__, ret);
3856                 wiphy_free(wiphy);
3857                 return ret;
3858         }
3859
3860         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3861                 mwifiex_dbg(adapter, INFO,
3862                             "driver hint alpha2: %2.2s\n", reg_alpha2);
3863                 regulatory_hint(wiphy, reg_alpha2);
3864         } else {
3865                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3866                 if (country_code)
3867                         mwifiex_dbg(adapter, WARN,
3868                                     "ignoring F/W country code %2.2s\n",
3869                                     country_code);
3870         }
3871
3872         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3873                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3874         wiphy->frag_threshold = thr;
3875         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3876                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3877         wiphy->rts_threshold = thr;
3878         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3879                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3880         wiphy->retry_short = (u8) retry;
3881         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3882                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3883         wiphy->retry_long = (u8) retry;
3884
3885         adapter->wiphy = wiphy;
3886         return ret;
3887 }