drivers/net/wireless/marvell/mwifiex/cfg80211.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * NXP Wireless LAN device driver: CFG80211
   4  *
   5  * Copyright 2011-2020 NXP
   6  */
   7
   8 #include "cfg80211.h"
   9 #include "main.h"
  10 #include "11n.h"
  11 #include "wmm.h"
  12
  13 static char *reg_alpha2;
  14 module_param(reg_alpha2, charp, 0);
  15
  16 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  17         {
  18                 .max = MWIFIEX_MAX_BSS_NUM,
  19                 .types = BIT(NL80211_IFTYPE_STATION) |
  20                                    BIT(NL80211_IFTYPE_P2P_GO) |
  21                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
  22                                    BIT(NL80211_IFTYPE_AP),
  23         },
  24 };
  25
  26 static const struct ieee80211_iface_combination
  27 mwifiex_iface_comb_ap_sta = {
  28         .limits = mwifiex_ap_sta_limits,
  29         .num_different_channels = 1,
  30         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  31         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  32         .beacon_int_infra_match = true,
  33         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  34                                 BIT(NL80211_CHAN_WIDTH_20) |
  35                                 BIT(NL80211_CHAN_WIDTH_40),
  36 };
  37
  38 static const struct ieee80211_iface_combination
  39 mwifiex_iface_comb_ap_sta_vht = {
  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                                 BIT(NL80211_CHAN_WIDTH_80),
  49 };
  50
  51 static const struct
  52 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  53         .limits = mwifiex_ap_sta_limits,
  54         .num_different_channels = 2,
  55         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  56         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  57         .beacon_int_infra_match = true,
  58 };
  59
  60 /*
  61  * This function maps the nl802.11 channel type into driver channel type.
  62  *
  63  * The mapping is as follows -
  64  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  65  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  66  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  67  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  68  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  69  */
  70 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  71 {
  72         switch (chan_type) {
  73         case NL80211_CHAN_NO_HT:
  74         case NL80211_CHAN_HT20:
  75                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  76         case NL80211_CHAN_HT40PLUS:
  77                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  78         case NL80211_CHAN_HT40MINUS:
  79                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  80         default:
  81                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  82         }
  83 }
  84
  85 /* This function maps IEEE HT secondary channel type to NL80211 channel type
  86  */
  87 u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
  88 {
  89         struct mwifiex_channel_band channel_band;
  90         int ret;
  91
  92         ret = mwifiex_get_chan_info(priv, &channel_band);
  93
  94         if (!ret) {
  95                 switch (channel_band.band_config.chan_width) {
  96                 case CHAN_BW_20MHZ:
  97                         if (IS_11N_ENABLED(priv))
  98                                 return NL80211_CHAN_HT20;
  99                         else
 100                                 return NL80211_CHAN_NO_HT;
 101                 case CHAN_BW_40MHZ:
 102                         if (channel_band.band_config.chan2_offset ==
 103                             SEC_CHAN_ABOVE)
 104                                 return NL80211_CHAN_HT40PLUS;
 105                         else
 106                                 return NL80211_CHAN_HT40MINUS;
 107                 default:
 108                         return NL80211_CHAN_HT20;
 109                 }
 110         }
 111
 112         return NL80211_CHAN_HT20;
 113 }
 114
 115 /*
 116  * This function checks whether WEP is set.
 117  */
 118 static int
 119 mwifiex_is_alg_wep(u32 cipher)
 120 {
 121         switch (cipher) {
 122         case WLAN_CIPHER_SUITE_WEP40:
 123         case WLAN_CIPHER_SUITE_WEP104:
 124                 return 1;
 125         default:
 126                 break;
 127         }
 128
 129         return 0;
 130 }
 131
 132 /*
 133  * This function retrieves the private structure from kernel wiphy structure.
 134  */
 135 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 136 {
 137         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 138 }
 139
 140 /*
 141  * CFG802.11 operation handler to delete a network key.
 142  */
 143 static int
 144 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 145                          int link_id, u8 key_index, bool pairwise,
 146                          const u8 *mac_addr)
 147 {
 148         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 149         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 150         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 151
 152         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 153                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 154                 return -EFAULT;
 155         }
 156
 157         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 158         return 0;
 159 }
 160
 161 /*
 162  * This function forms an skb for management frame.
 163  */
 164 static int
 165 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 166 {
 167         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 168         u16 pkt_len;
 169         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 170
 171         pkt_len = len + ETH_ALEN;
 172
 173         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 174                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 175         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 176
 177         memcpy(skb_push(skb, sizeof(tx_control)),
 178                &tx_control, sizeof(tx_control));
 179
 180         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 181
 182         /* Add packet data and address4 */
 183         skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
 184         skb_put_data(skb, addr, ETH_ALEN);
 185         skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
 186                      len - sizeof(struct ieee80211_hdr_3addr));
 187
 188         skb->priority = LOW_PRIO_TID;
 189         __net_timestamp(skb);
 190
 191         return 0;
 192 }
 193
 194 /*
 195  * CFG802.11 operation handler to transmit a management frame.
 196  */
 197 static int
 198 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 199                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 200 {
 201         const u8 *buf = params->buf;
 202         size_t len = params->len;
 203         struct sk_buff *skb;
 204         u16 pkt_len;
 205         const struct ieee80211_mgmt *mgmt;
 206         struct mwifiex_txinfo *tx_info;
 207         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 208
 209         if (!buf || !len) {
 210                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 211                 return -EFAULT;
 212         }
 213
 214         mgmt = (const struct ieee80211_mgmt *)buf;
 215         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 216             ieee80211_is_probe_resp(mgmt->frame_control)) {
 217                 /* Since we support offload probe resp, we need to skip probe
 218                  * resp in AP or GO mode */
 219                 mwifiex_dbg(priv->adapter, INFO,
 220                             "info: skip to send probe resp in AP or GO mode\n");
 221                 return 0;
 222         }
 223
 224         pkt_len = len + ETH_ALEN;
 225         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 226                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 227                             pkt_len + sizeof(pkt_len));
 228
 229         if (!skb) {
 230                 mwifiex_dbg(priv->adapter, ERROR,
 231                             "allocate skb failed for management frame\n");
 232                 return -ENOMEM;
 233         }
 234
 235         tx_info = MWIFIEX_SKB_TXCB(skb);
 236         memset(tx_info, 0, sizeof(*tx_info));
 237         tx_info->bss_num = priv->bss_num;
 238         tx_info->bss_type = priv->bss_type;
 239         tx_info->pkt_len = pkt_len;
 240
 241         mwifiex_form_mgmt_frame(skb, buf, len);
 242         *cookie = get_random_u32() | 1;
 243
 244         if (ieee80211_is_action(mgmt->frame_control))
 245                 skb = mwifiex_clone_skb_for_tx_status(priv,
 246                                                       skb,
 247                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 248         else
 249                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 250                                         GFP_ATOMIC);
 251
 252         mwifiex_queue_tx_pkt(priv, skb);
 253
 254         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 255         return 0;
 256 }
 257
 258 /*
 259  * CFG802.11 operation handler to register a mgmt frame.
 260  */
 261 static void
 262 mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
 263                                                  struct wireless_dev *wdev,
 264                                                  struct mgmt_frame_regs *upd)
 265 {
 266         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 267         u32 mask = upd->interface_stypes;
 268
 269         if (mask != priv->mgmt_frame_mask) {
 270                 priv->mgmt_frame_mask = mask;
 271                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 272                                  HostCmd_ACT_GEN_SET, 0,
 273                                  &priv->mgmt_frame_mask, false);
 274                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 275         }
 276 }
 277
 278 /*
 279  * CFG802.11 operation handler to remain on channel.
 280  */
 281 static int
 282 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 283                                    struct wireless_dev *wdev,
 284                                    struct ieee80211_channel *chan,
 285                                    unsigned int duration, u64 *cookie)
 286 {
 287         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 288         int ret;
 289
 290         if (!chan || !cookie) {
 291                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 292                 return -EINVAL;
 293         }
 294
 295         if (priv->roc_cfg.cookie) {
 296                 mwifiex_dbg(priv->adapter, INFO,
 297                             "info: ongoing ROC, cookie = 0x%llx\n",
 298                             priv->roc_cfg.cookie);
 299                 return -EBUSY;
 300         }
 301
 302         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 303                                          duration);
 304
 305         if (!ret) {
 306                 *cookie = get_random_u32() | 1;
 307                 priv->roc_cfg.cookie = *cookie;
 308                 priv->roc_cfg.chan = *chan;
 309
 310                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 311                                           duration, GFP_ATOMIC);
 312
 313                 mwifiex_dbg(priv->adapter, INFO,
 314                             "info: ROC, cookie = 0x%llx\n", *cookie);
 315         }
 316
 317         return ret;
 318 }
 319
 320 /*
 321  * CFG802.11 operation handler to cancel remain on channel.
 322  */
 323 static int
 324 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 325                                           struct wireless_dev *wdev, u64 cookie)
 326 {
 327         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 328         int ret;
 329
 330         if (cookie != priv->roc_cfg.cookie)
 331                 return -ENOENT;
 332
 333         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 334                                          &priv->roc_cfg.chan, 0);
 335
 336         if (!ret) {
 337                 cfg80211_remain_on_channel_expired(wdev, cookie,
 338                                                    &priv->roc_cfg.chan,
 339                                                    GFP_ATOMIC);
 340
 341                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 342
 343                 mwifiex_dbg(priv->adapter, INFO,
 344                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
 345         }
 346
 347         return ret;
 348 }
 349
 350 /*
 351  * CFG802.11 operation handler to set Tx power.
 352  */
 353 static int
 354 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 355                               struct wireless_dev *wdev,
 356                               enum nl80211_tx_power_setting type,
 357                               int mbm)
 358 {
 359         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 360         struct mwifiex_private *priv;
 361         struct mwifiex_power_cfg power_cfg;
 362         int dbm = MBM_TO_DBM(mbm);
 363
 364         switch (type) {
 365         case NL80211_TX_POWER_FIXED:
 366                 power_cfg.is_power_auto = 0;
 367                 power_cfg.is_power_fixed = 1;
 368                 power_cfg.power_level = dbm;
 369                 break;
 370         case NL80211_TX_POWER_LIMITED:
 371                 power_cfg.is_power_auto = 0;
 372                 power_cfg.is_power_fixed = 0;
 373                 power_cfg.power_level = dbm;
 374                 break;
 375         case NL80211_TX_POWER_AUTOMATIC:
 376                 power_cfg.is_power_auto = 1;
 377                 break;
 378         }
 379
 380         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 381
 382         return mwifiex_set_tx_power(priv, &power_cfg);
 383 }
 384
 385 /*
 386  * CFG802.11 operation handler to get Tx power.
 387  */
 388 static int
 389 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 390                               struct wireless_dev *wdev,
 391                               int *dbm)
 392 {
 393         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 394         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 395                                                         MWIFIEX_BSS_ROLE_ANY);
 396         int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 397                                    HostCmd_ACT_GEN_GET, 0, NULL, true);
 398
 399         if (ret < 0)
 400                 return ret;
 401
 402         /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 403         *dbm = priv->tx_power_level;
 404
 405         return 0;
 406 }
 407
 408 /*
 409  * CFG802.11 operation handler to set Power Save option.
 410  *
 411  * The timeout value, if provided, is currently ignored.
 412  */
 413 static int
 414 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 415                                 struct net_device *dev,
 416                                 bool enabled, int timeout)
 417 {
 418         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 419         u32 ps_mode;
 420
 421         if (timeout)
 422                 mwifiex_dbg(priv->adapter, INFO,
 423                             "info: ignore timeout value for IEEE Power Save\n");
 424
 425         ps_mode = enabled;
 426
 427         return mwifiex_drv_set_power(priv, &ps_mode);
 428 }
 429
 430 /*
 431  * CFG802.11 operation handler to set the default network key.
 432  */
 433 static int
 434 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 435                                  int link_id, u8 key_index, bool unicast,
 436                                  bool multicast)
 437 {
 438         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 439
 440         /* Return if WEP key not configured */
 441         if (!priv->sec_info.wep_enabled)
 442                 return 0;
 443
 444         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 445                 priv->wep_key_curr_index = key_index;
 446         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 447                                       NULL, 0)) {
 448                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 449                 return -EFAULT;
 450         }
 451
 452         return 0;
 453 }
 454
 455 /*
 456  * CFG802.11 operation handler to add a network key.
 457  */
 458 static int
 459 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 460                          int link_id, u8 key_index, bool pairwise,
 461                          const u8 *mac_addr, struct key_params *params)
 462 {
 463         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 464         struct mwifiex_wep_key *wep_key;
 465         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 466         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 467
 468         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 469             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 470              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 471                 if (params->key && params->key_len) {
 472                         wep_key = &priv->wep_key[key_index];
 473                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 474                         memcpy(wep_key->key_material, params->key,
 475                                params->key_len);
 476                         wep_key->key_index = key_index;
 477                         wep_key->key_length = params->key_len;
 478                         priv->sec_info.wep_enabled = 1;
 479                 }
 480                 return 0;
 481         }
 482
 483         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 484                                key_index, peer_mac, 0)) {
 485                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 486                 return -EFAULT;
 487         }
 488
 489         return 0;
 490 }
 491
 492 /*
 493  * CFG802.11 operation handler to set default mgmt key.
 494  */
 495 static int
 496 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
 497                                       struct net_device *netdev,
 498                                       int link_id,
 499                                       u8 key_index)
 500 {
 501         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 502         struct mwifiex_ds_encrypt_key encrypt_key;
 503
 504         wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
 505
 506         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 507         encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
 508         encrypt_key.key_index = key_index;
 509         encrypt_key.is_igtk_def_key = true;
 510         eth_broadcast_addr(encrypt_key.mac_addr);
 511
 512         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 513                              HostCmd_ACT_GEN_SET, true, &encrypt_key, true)) {
 514                 mwifiex_dbg(priv->adapter, ERROR,
 515                             "Sending KEY_MATERIAL command failed\n");
 516                 return -1;
 517         }
 518
 519         return 0;
 520 }
 521
 522 /*
 523  * This function sends domain information to the firmware.
 524  *
 525  * The following information are passed to the firmware -
 526  *      - Country codes
 527  *      - Sub bands (first channel, number of channels, maximum Tx power)
 528  */
 529 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 530 {
 531         u8 no_of_triplet = 0;
 532         struct ieee80211_country_ie_triplet *t;
 533         u8 no_of_parsed_chan = 0;
 534         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 535         u8 i, flag = 0;
 536         enum nl80211_band band;
 537         struct ieee80211_supported_band *sband;
 538         struct ieee80211_channel *ch;
 539         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 540         struct mwifiex_private *priv;
 541         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 542
 543         /* Set country code */
 544         domain_info->country_code[0] = adapter->country_code[0];
 545         domain_info->country_code[1] = adapter->country_code[1];
 546         domain_info->country_code[2] = ' ';
 547
 548         band = mwifiex_band_to_radio_type(adapter->config_bands);
 549         if (!wiphy->bands[band]) {
 550                 mwifiex_dbg(adapter, ERROR,
 551                             "11D: setting domain info in FW\n");
 552                 return -1;
 553         }
 554
 555         sband = wiphy->bands[band];
 556
 557         for (i = 0; i < sband->n_channels ; i++) {
 558                 ch = &sband->channels[i];
 559                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 560                         continue;
 561
 562                 if (!flag) {
 563                         flag = 1;
 564                         first_chan = (u32) ch->hw_value;
 565                         next_chan = first_chan;
 566                         max_pwr = ch->max_power;
 567                         no_of_parsed_chan = 1;
 568                         continue;
 569                 }
 570
 571                 if (ch->hw_value == next_chan + 1 &&
 572                     ch->max_power == max_pwr) {
 573                         next_chan++;
 574                         no_of_parsed_chan++;
 575                 } else {
 576                         t = &domain_info->triplet[no_of_triplet];
 577                         t->chans.first_channel = first_chan;
 578                         t->chans.num_channels = no_of_parsed_chan;
 579                         t->chans.max_power = max_pwr;
 580                         no_of_triplet++;
 581                         first_chan = (u32) ch->hw_value;
 582                         next_chan = first_chan;
 583                         max_pwr = ch->max_power;
 584                         no_of_parsed_chan = 1;
 585                 }
 586         }
 587
 588         if (flag) {
 589                 t = &domain_info->triplet[no_of_triplet];
 590                 t->chans.first_channel = first_chan;
 591                 t->chans.num_channels = no_of_parsed_chan;
 592                 t->chans.max_power = max_pwr;
 593                 no_of_triplet++;
 594         }
 595
 596         domain_info->no_of_triplet = no_of_triplet;
 597
 598         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 599
 600         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 601                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 602                 mwifiex_dbg(adapter, INFO,
 603                             "11D: setting domain info in FW\n");
 604                 return -1;
 605         }
 606
 607         return 0;
 608 }
 609
 610 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
 611 {
 612         struct ieee80211_supported_band *sband;
 613         struct ieee80211_channel *chan;
 614         unsigned int i;
 615
 616         if (!wiphy->bands[NL80211_BAND_5GHZ])
 617                 return;
 618         sband = wiphy->bands[NL80211_BAND_5GHZ];
 619
 620         for (i = 0; i < sband->n_channels; i++) {
 621                 chan = &sband->channels[i];
 622                 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
 623                     (chan->flags & IEEE80211_CHAN_RADAR))
 624                         chan->flags |= IEEE80211_CHAN_NO_IR;
 625         }
 626 }
 627
 628 /*
 629  * CFG802.11 regulatory domain callback function.
 630  *
 631  * This function is called when the regulatory domain is changed due to the
 632  * following reasons -
 633  *      - Set by driver
 634  *      - Set by system core
 635  *      - Set by user
 636  *      - Set bt Country IE
 637  */
 638 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 639                                  struct regulatory_request *request)
 640 {
 641         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 642         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 643                                                         MWIFIEX_BSS_ROLE_ANY);
 644         mwifiex_dbg(adapter, INFO,
 645                     "info: cfg80211 regulatory domain callback for %c%c\n",
 646                     request->alpha2[0], request->alpha2[1]);
 647         mwifiex_reg_apply_radar_flags(wiphy);
 648
 649         switch (request->initiator) {
 650         case NL80211_REGDOM_SET_BY_DRIVER:
 651         case NL80211_REGDOM_SET_BY_CORE:
 652         case NL80211_REGDOM_SET_BY_USER:
 653         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 654                 break;
 655         default:
 656                 mwifiex_dbg(adapter, ERROR,
 657                             "unknown regdom initiator: %d\n",
 658                             request->initiator);
 659                 return;
 660         }
 661
 662         /* Don't send world or same regdom info to firmware */
 663         if (strncmp(request->alpha2, "00", 2) &&
 664             strncmp(request->alpha2, adapter->country_code,
 665                     sizeof(request->alpha2))) {
 666                 memcpy(adapter->country_code, request->alpha2,
 667                        sizeof(request->alpha2));
 668                 mwifiex_send_domain_info_cmd_fw(wiphy);
 669                 mwifiex_dnld_txpwr_table(priv);
 670         }
 671 }
 672
 673 /*
 674  * This function sets the fragmentation threshold.
 675  *
 676  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 677  * and MWIFIEX_FRAG_MAX_VALUE.
 678  */
 679 static int
 680 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 681 {
 682         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 683             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 684                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 685
 686         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 687                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 688                                 &frag_thr, true);
 689 }
 690
 691 /*
 692  * This function sets the RTS threshold.
 693
 694  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 695  * and MWIFIEX_RTS_MAX_VALUE.
 696  */
 697 static int
 698 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 699 {
 700         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 701                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 702
 703         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 704                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 705                                 &rts_thr, true);
 706 }
 707
 708 /*
 709  * CFG802.11 operation handler to set wiphy parameters.
 710  *
 711  * This function can be used to set the RTS threshold and the
 712  * Fragmentation threshold of the driver.
 713  */
 714 static int
 715 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 716 {
 717         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 718         struct mwifiex_private *priv;
 719         struct mwifiex_uap_bss_param *bss_cfg;
 720         int ret;
 721
 722         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 723
 724         switch (priv->bss_role) {
 725         case MWIFIEX_BSS_ROLE_UAP:
 726                 if (priv->bss_started) {
 727                         mwifiex_dbg(adapter, ERROR,
 728                                     "cannot change wiphy params when bss started");
 729                         return -EINVAL;
 730                 }
 731
 732                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 733                 if (!bss_cfg)
 734                         return -ENOMEM;
 735
 736                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 737
 738                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 739                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 740                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 741                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 742                 if (changed & WIPHY_PARAM_RETRY_LONG)
 743                         bss_cfg->retry_limit = wiphy->retry_long;
 744
 745                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 746                                        HostCmd_ACT_GEN_SET,
 747                                        UAP_BSS_PARAMS_I, bss_cfg,
 748                                        false);
 749
 750                 kfree(bss_cfg);
 751                 if (ret) {
 752                         mwifiex_dbg(adapter, ERROR,
 753                                     "Failed to set wiphy phy params\n");
 754                         return ret;
 755                 }
 756                 break;
 757
 758         case MWIFIEX_BSS_ROLE_STA:
 759                 if (priv->media_connected) {
 760                         mwifiex_dbg(adapter, ERROR,
 761                                     "cannot change wiphy params when connected");
 762                         return -EINVAL;
 763                 }
 764                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 765                         ret = mwifiex_set_rts(priv,
 766                                               wiphy->rts_threshold);
 767                         if (ret)
 768                                 return ret;
 769                 }
 770                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 771                         ret = mwifiex_set_frag(priv,
 772                                                wiphy->frag_threshold);
 773                         if (ret)
 774                                 return ret;
 775                 }
 776                 break;
 777         }
 778
 779         return 0;
 780 }
 781
 782 static int
 783 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 784 {
 785         u16 mode = P2P_MODE_DISABLE;
 786
 787         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 788                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 789                 return -1;
 790
 791         return 0;
 792 }
 793
 794 /*
 795  * This function initializes the functionalities for P2P client.
 796  * The P2P client initialization sequence is:
 797  * disable -> device -> client
 798  */
 799 static int
 800 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 801 {
 802         u16 mode;
 803
 804         if (mwifiex_cfg80211_deinit_p2p(priv))
 805                 return -1;
 806
 807         mode = P2P_MODE_DEVICE;
 808         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 809                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 810                 return -1;
 811
 812         mode = P2P_MODE_CLIENT;
 813         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 814                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 815                 return -1;
 816
 817         return 0;
 818 }
 819
 820 /*
 821  * This function initializes the functionalities for P2P GO.
 822  * The P2P GO initialization sequence is:
 823  * disable -> device -> GO
 824  */
 825 static int
 826 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 827 {
 828         u16 mode;
 829
 830         if (mwifiex_cfg80211_deinit_p2p(priv))
 831                 return -1;
 832
 833         mode = P2P_MODE_DEVICE;
 834         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 835                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 836                 return -1;
 837
 838         mode = P2P_MODE_GO;
 839         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 840                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 841                 return -1;
 842
 843         return 0;
 844 }
 845
 846 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 847 {
 848         struct mwifiex_adapter *adapter = priv->adapter;
 849         unsigned long flags;
 850
 851         priv->mgmt_frame_mask = 0;
 852         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 853                              HostCmd_ACT_GEN_SET, 0,
 854                              &priv->mgmt_frame_mask, false)) {
 855                 mwifiex_dbg(adapter, ERROR,
 856                             "could not unregister mgmt frame rx\n");
 857                 return -1;
 858         }
 859
 860         mwifiex_deauthenticate(priv, NULL);
 861
 862         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 863         adapter->main_locked = true;
 864         if (adapter->mwifiex_processing) {
 865                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 866                 flush_workqueue(adapter->workqueue);
 867         } else {
 868                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 869         }
 870
 871         spin_lock_bh(&adapter->rx_proc_lock);
 872         adapter->rx_locked = true;
 873         if (adapter->rx_processing) {
 874                 spin_unlock_bh(&adapter->rx_proc_lock);
 875                 flush_workqueue(adapter->rx_workqueue);
 876         } else {
 877         spin_unlock_bh(&adapter->rx_proc_lock);
 878         }
 879
 880         mwifiex_free_priv(priv);
 881         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 882         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 883         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 884
 885         return 0;
 886 }
 887
 888 static int
 889 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 890                              struct net_device *dev,
 891                              enum nl80211_iftype type)
 892 {
 893         struct mwifiex_adapter *adapter = priv->adapter;
 894         unsigned long flags;
 895
 896         mwifiex_init_priv(priv);
 897
 898         priv->bss_mode = type;
 899         priv->wdev.iftype = type;
 900
 901         mwifiex_init_priv_params(priv, priv->netdev);
 902         priv->bss_started = 0;
 903
 904         switch (type) {
 905         case NL80211_IFTYPE_STATION:
 906         case NL80211_IFTYPE_ADHOC:
 907                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
 908                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 909                 break;
 910         case NL80211_IFTYPE_P2P_CLIENT:
 911                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
 912                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 913                 break;
 914         case NL80211_IFTYPE_P2P_GO:
 915                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 916                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 917                 break;
 918         case NL80211_IFTYPE_AP:
 919                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 920                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 921                 break;
 922         default:
 923                 mwifiex_dbg(adapter, ERROR,
 924                             "%s: changing to %d not supported\n",
 925                             dev->name, type);
 926                 return -EOPNOTSUPP;
 927         }
 928
 929         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 930         adapter->main_locked = false;
 931         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 932
 933         spin_lock_bh(&adapter->rx_proc_lock);
 934         adapter->rx_locked = false;
 935         spin_unlock_bh(&adapter->rx_proc_lock);
 936
 937         mwifiex_set_mac_address(priv, dev, false, NULL);
 938
 939         return 0;
 940 }
 941
 942 static bool
 943 is_vif_type_change_allowed(struct mwifiex_adapter *adapter,
 944                            enum nl80211_iftype old_iftype,
 945                            enum nl80211_iftype new_iftype)
 946 {
 947         switch (old_iftype) {
 948         case NL80211_IFTYPE_ADHOC:
 949                 switch (new_iftype) {
 950                 case NL80211_IFTYPE_STATION:
 951                         return true;
 952                 case NL80211_IFTYPE_P2P_CLIENT:
 953                 case NL80211_IFTYPE_P2P_GO:
 954                         return adapter->curr_iface_comb.p2p_intf !=
 955                                adapter->iface_limit.p2p_intf;
 956                 case NL80211_IFTYPE_AP:
 957                         return adapter->curr_iface_comb.uap_intf !=
 958                                adapter->iface_limit.uap_intf;
 959                 default:
 960                         return false;
 961                 }
 962
 963         case NL80211_IFTYPE_STATION:
 964                 switch (new_iftype) {
 965                 case NL80211_IFTYPE_ADHOC:
 966                         return true;
 967                 case NL80211_IFTYPE_P2P_CLIENT:
 968                 case NL80211_IFTYPE_P2P_GO:
 969                         return adapter->curr_iface_comb.p2p_intf !=
 970                                adapter->iface_limit.p2p_intf;
 971                 case NL80211_IFTYPE_AP:
 972                         return adapter->curr_iface_comb.uap_intf !=
 973                                adapter->iface_limit.uap_intf;
 974                 default:
 975                         return false;
 976                 }
 977
 978         case NL80211_IFTYPE_AP:
 979                 switch (new_iftype) {
 980                 case NL80211_IFTYPE_ADHOC:
 981                 case NL80211_IFTYPE_STATION:
 982                         return adapter->curr_iface_comb.sta_intf !=
 983                                adapter->iface_limit.sta_intf;
 984                 case NL80211_IFTYPE_P2P_CLIENT:
 985                 case NL80211_IFTYPE_P2P_GO:
 986                         return adapter->curr_iface_comb.p2p_intf !=
 987                                adapter->iface_limit.p2p_intf;
 988                 default:
 989                         return false;
 990                 }
 991
 992         case NL80211_IFTYPE_P2P_CLIENT:
 993                 switch (new_iftype) {
 994                 case NL80211_IFTYPE_ADHOC:
 995                 case NL80211_IFTYPE_STATION:
 996                         return true;
 997                 case NL80211_IFTYPE_P2P_GO:
 998                         return true;
 999                 case NL80211_IFTYPE_AP:
1000                         return adapter->curr_iface_comb.uap_intf !=
1001                                adapter->iface_limit.uap_intf;
1002                 default:
1003                         return false;
1004                 }
1005
1006         case NL80211_IFTYPE_P2P_GO:
1007                 switch (new_iftype) {
1008                 case NL80211_IFTYPE_ADHOC:
1009                 case NL80211_IFTYPE_STATION:
1010                         return true;
1011                 case NL80211_IFTYPE_P2P_CLIENT:
1012                         return true;
1013                 case NL80211_IFTYPE_AP:
1014                         return adapter->curr_iface_comb.uap_intf !=
1015                                adapter->iface_limit.uap_intf;
1016                 default:
1017                         return false;
1018                 }
1019
1020         default:
1021                 break;
1022         }
1023
1024         return false;
1025 }
1026
1027 static void
1028 update_vif_type_counter(struct mwifiex_adapter *adapter,
1029                         enum nl80211_iftype iftype,
1030                         int change)
1031 {
1032         switch (iftype) {
1033         case NL80211_IFTYPE_UNSPECIFIED:
1034         case NL80211_IFTYPE_ADHOC:
1035         case NL80211_IFTYPE_STATION:
1036                 adapter->curr_iface_comb.sta_intf += change;
1037                 break;
1038         case NL80211_IFTYPE_AP:
1039                 adapter->curr_iface_comb.uap_intf += change;
1040                 break;
1041         case NL80211_IFTYPE_P2P_CLIENT:
1042         case NL80211_IFTYPE_P2P_GO:
1043                 adapter->curr_iface_comb.p2p_intf += change;
1044                 break;
1045         default:
1046                 mwifiex_dbg(adapter, ERROR,
1047                             "%s: Unsupported iftype passed: %d\n",
1048                             __func__, iftype);
1049                 break;
1050         }
1051 }
1052
1053 static int
1054 mwifiex_change_vif_to_p2p(struct net_device *dev,
1055                           enum nl80211_iftype curr_iftype,
1056                           enum nl80211_iftype type,
1057                           struct vif_params *params)
1058 {
1059         struct mwifiex_private *priv;
1060         struct mwifiex_adapter *adapter;
1061
1062         priv = mwifiex_netdev_get_priv(dev);
1063
1064         if (!priv)
1065                 return -1;
1066
1067         adapter = priv->adapter;
1068
1069         mwifiex_dbg(adapter, INFO,
1070                     "%s: changing role to p2p\n", dev->name);
1071
1072         if (mwifiex_deinit_priv_params(priv))
1073                 return -1;
1074         if (mwifiex_init_new_priv_params(priv, dev, type))
1075                 return -1;
1076
1077         update_vif_type_counter(adapter, curr_iftype, -1);
1078         update_vif_type_counter(adapter, type, +1);
1079         dev->ieee80211_ptr->iftype = type;
1080
1081         switch (type) {
1082         case NL80211_IFTYPE_P2P_CLIENT:
1083                 if (mwifiex_cfg80211_init_p2p_client(priv))
1084                         return -EFAULT;
1085                 break;
1086         case NL80211_IFTYPE_P2P_GO:
1087                 if (mwifiex_cfg80211_init_p2p_go(priv))
1088                         return -EFAULT;
1089                 break;
1090         default:
1091                 mwifiex_dbg(adapter, ERROR,
1092                             "%s: changing to %d not supported\n",
1093                             dev->name, type);
1094                 return -EOPNOTSUPP;
1095         }
1096
1097         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1098                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1099                 return -1;
1100
1101         if (mwifiex_sta_init_cmd(priv, false, false))
1102                 return -1;
1103
1104         return 0;
1105 }
1106
1107 static int
1108 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1109                                 enum nl80211_iftype curr_iftype,
1110                                 enum nl80211_iftype type,
1111                                 struct vif_params *params)
1112 {
1113         struct mwifiex_private *priv;
1114         struct mwifiex_adapter *adapter;
1115
1116         priv = mwifiex_netdev_get_priv(dev);
1117
1118         if (!priv)
1119                 return -1;
1120
1121         adapter = priv->adapter;
1122
1123         if (type == NL80211_IFTYPE_STATION)
1124                 mwifiex_dbg(adapter, INFO,
1125                             "%s: changing role to station\n", dev->name);
1126         else
1127                 mwifiex_dbg(adapter, INFO,
1128                             "%s: changing role to adhoc\n", dev->name);
1129
1130         if (mwifiex_deinit_priv_params(priv))
1131                 return -1;
1132         if (mwifiex_init_new_priv_params(priv, dev, type))
1133                 return -1;
1134
1135         update_vif_type_counter(adapter, curr_iftype, -1);
1136         update_vif_type_counter(adapter, type, +1);
1137         dev->ieee80211_ptr->iftype = type;
1138
1139         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1140                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1141                 return -1;
1142         if (mwifiex_sta_init_cmd(priv, false, false))
1143                 return -1;
1144
1145         return 0;
1146 }
1147
1148 static int
1149 mwifiex_change_vif_to_ap(struct net_device *dev,
1150                          enum nl80211_iftype curr_iftype,
1151                          enum nl80211_iftype type,
1152                          struct vif_params *params)
1153 {
1154         struct mwifiex_private *priv;
1155         struct mwifiex_adapter *adapter;
1156
1157         priv = mwifiex_netdev_get_priv(dev);
1158
1159         if (!priv)
1160                 return -1;
1161
1162         adapter = priv->adapter;
1163
1164         mwifiex_dbg(adapter, INFO,
1165                     "%s: changing role to AP\n", dev->name);
1166
1167         if (mwifiex_deinit_priv_params(priv))
1168                 return -1;
1169         if (mwifiex_init_new_priv_params(priv, dev, type))
1170                 return -1;
1171
1172         update_vif_type_counter(adapter, curr_iftype, -1);
1173         update_vif_type_counter(adapter, type, +1);
1174         dev->ieee80211_ptr->iftype = type;
1175
1176         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1177                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1178                 return -1;
1179         if (mwifiex_sta_init_cmd(priv, false, false))
1180                 return -1;
1181
1182         return 0;
1183 }
1184 /*
1185  * CFG802.11 operation handler to change interface type.
1186  */
1187 static int
1188 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1189                                      struct net_device *dev,
1190                                      enum nl80211_iftype type,
1191                                      struct vif_params *params)
1192 {
1193         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1194         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1195
1196         if (priv->scan_request) {
1197                 mwifiex_dbg(priv->adapter, ERROR,
1198                             "change virtual interface: scan in process\n");
1199                 return -EBUSY;
1200         }
1201
1202         if (type == NL80211_IFTYPE_UNSPECIFIED) {
1203                 mwifiex_dbg(priv->adapter, INFO,
1204                             "%s: no new type specified, keeping old type %d\n",
1205                             dev->name, curr_iftype);
1206                 return 0;
1207         }
1208
1209         if (curr_iftype == type) {
1210                 mwifiex_dbg(priv->adapter, INFO,
1211                             "%s: interface already is of type %d\n",
1212                             dev->name, curr_iftype);
1213                 return 0;
1214         }
1215
1216         if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) {
1217                 mwifiex_dbg(priv->adapter, ERROR,
1218                             "%s: change from type %d to %d is not allowed\n",
1219                             dev->name, curr_iftype, type);
1220                 return -EOPNOTSUPP;
1221         }
1222
1223         switch (curr_iftype) {
1224         case NL80211_IFTYPE_ADHOC:
1225                 switch (type) {
1226                 case NL80211_IFTYPE_STATION:
1227                         priv->bss_mode = type;
1228                         priv->sec_info.authentication_mode =
1229                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1230                         dev->ieee80211_ptr->iftype = type;
1231                         mwifiex_deauthenticate(priv, NULL);
1232                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1233                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1234                                                 true);
1235                 case NL80211_IFTYPE_P2P_CLIENT:
1236                 case NL80211_IFTYPE_P2P_GO:
1237                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1238                                                          type, params);
1239                 case NL80211_IFTYPE_AP:
1240                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1241                                                         params);
1242                 default:
1243                         goto errnotsupp;
1244                 }
1245
1246         case NL80211_IFTYPE_STATION:
1247                 switch (type) {
1248                 case NL80211_IFTYPE_ADHOC:
1249                         priv->bss_mode = type;
1250                         priv->sec_info.authentication_mode =
1251                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1252                         dev->ieee80211_ptr->iftype = type;
1253                         mwifiex_deauthenticate(priv, NULL);
1254                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1255                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1256                                                 true);
1257                 case NL80211_IFTYPE_P2P_CLIENT:
1258                 case NL80211_IFTYPE_P2P_GO:
1259                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1260                                                          type, params);
1261                 case NL80211_IFTYPE_AP:
1262                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1263                                                         params);
1264                 default:
1265                         goto errnotsupp;
1266                 }
1267
1268         case NL80211_IFTYPE_AP:
1269                 switch (type) {
1270                 case NL80211_IFTYPE_ADHOC:
1271                 case NL80211_IFTYPE_STATION:
1272                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1273                                                                type, params);
1274                         break;
1275                 case NL80211_IFTYPE_P2P_CLIENT:
1276                 case NL80211_IFTYPE_P2P_GO:
1277                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1278                                                          type, params);
1279                 default:
1280                         goto errnotsupp;
1281                 }
1282
1283         case NL80211_IFTYPE_P2P_CLIENT:
1284                 if (mwifiex_cfg80211_deinit_p2p(priv))
1285                         return -EFAULT;
1286
1287                 switch (type) {
1288                 case NL80211_IFTYPE_ADHOC:
1289                 case NL80211_IFTYPE_STATION:
1290                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1291                                                                type, params);
1292                 case NL80211_IFTYPE_P2P_GO:
1293                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1294                                                          type, params);
1295                 case NL80211_IFTYPE_AP:
1296                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1297                                                         params);
1298                 default:
1299                         goto errnotsupp;
1300                 }
1301
1302         case NL80211_IFTYPE_P2P_GO:
1303                 if (mwifiex_cfg80211_deinit_p2p(priv))
1304                         return -EFAULT;
1305
1306                 switch (type) {
1307                 case NL80211_IFTYPE_ADHOC:
1308                 case NL80211_IFTYPE_STATION:
1309                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1310                                                                type, params);
1311                 case NL80211_IFTYPE_P2P_CLIENT:
1312                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1313                                                          type, params);
1314                 case NL80211_IFTYPE_AP:
1315                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1316                                                         params);
1317                 default:
1318                         goto errnotsupp;
1319                 }
1320
1321         default:
1322                 goto errnotsupp;
1323         }
1324
1325
1326         return 0;
1327
1328 errnotsupp:
1329         mwifiex_dbg(priv->adapter, ERROR,
1330                     "unsupported interface type transition: %d to %d\n",
1331                     curr_iftype, type);
1332         return -EOPNOTSUPP;
1333 }
1334
1335 static void
1336 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo,
1337                      struct rate_info *rate)
1338 {
1339         struct mwifiex_adapter *adapter = priv->adapter;
1340
1341         if (adapter->is_hw_11ac_capable) {
1342                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1343                 if (htinfo & BIT(0)) {
1344                         /* HT */
1345                         rate->mcs = rateinfo;
1346                         rate->flags |= RATE_INFO_FLAGS_MCS;
1347                 }
1348                 if (htinfo & BIT(1)) {
1349                         /* VHT */
1350                         rate->mcs = rateinfo & 0x0F;
1351                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1352                 }
1353
1354                 if (htinfo & (BIT(1) | BIT(0))) {
1355                         /* HT or VHT */
1356                         switch (htinfo & (BIT(3) | BIT(2))) {
1357                         case 0:
1358                                 rate->bw = RATE_INFO_BW_20;
1359                                 break;
1360                         case (BIT(2)):
1361                                 rate->bw = RATE_INFO_BW_40;
1362                                 break;
1363                         case (BIT(3)):
1364                                 rate->bw = RATE_INFO_BW_80;
1365                                 break;
1366                         case (BIT(3) | BIT(2)):
1367                                 rate->bw = RATE_INFO_BW_160;
1368                                 break;
1369                         }
1370
1371                         if (htinfo & BIT(4))
1372                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1373
1374                         if ((rateinfo >> 4) == 1)
1375                                 rate->nss = 2;
1376                         else
1377                                 rate->nss = 1;
1378                 }
1379         } else {
1380                 /*
1381                  * Bit 0 in htinfo indicates that current rate is 11n. Valid
1382                  * MCS index values for us are 0 to 15.
1383                  */
1384                 if ((htinfo & BIT(0)) && (rateinfo < 16)) {
1385                         rate->mcs = rateinfo;
1386                         rate->flags |= RATE_INFO_FLAGS_MCS;
1387                         rate->bw = RATE_INFO_BW_20;
1388                         if (htinfo & BIT(1))
1389                                 rate->bw = RATE_INFO_BW_40;
1390                         if (htinfo & BIT(2))
1391                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1392                 }
1393         }
1394
1395         /* Decode legacy rates for non-HT. */
1396         if (!(htinfo & (BIT(0) | BIT(1)))) {
1397                 /* Bitrates in multiples of 100kb/s. */
1398                 static const int legacy_rates[] = {
1399                         [0] = 10,
1400                         [1] = 20,
1401                         [2] = 55,
1402                         [3] = 110,
1403                         [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */
1404                         [5] = 60,
1405                         [6] = 90,
1406                         [7] = 120,
1407                         [8] = 180,
1408                         [9] = 240,
1409                         [10] = 360,
1410                         [11] = 480,
1411                         [12] = 540,
1412                 };
1413                 if (rateinfo < ARRAY_SIZE(legacy_rates))
1414                         rate->legacy = legacy_rates[rateinfo];
1415         }
1416 }
1417
1418 /*
1419  * This function dumps the station information on a buffer.
1420  *
1421  * The following information are shown -
1422  *      - Total bytes transmitted
1423  *      - Total bytes received
1424  *      - Total packets transmitted
1425  *      - Total packets received
1426  *      - Signal quality level
1427  *      - Transmission rate
1428  */
1429 static int
1430 mwifiex_dump_station_info(struct mwifiex_private *priv,
1431                           struct mwifiex_sta_node *node,
1432                           struct station_info *sinfo)
1433 {
1434         u32 rate;
1435
1436         sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1437                         BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1438                         BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1439                         BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1440
1441         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1442                 if (!node)
1443                         return -ENOENT;
1444
1445                 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1446                                 BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1447                 sinfo->inactive_time =
1448                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1449
1450                 sinfo->signal = node->stats.rssi;
1451                 sinfo->signal_avg = node->stats.rssi;
1452                 sinfo->rx_bytes = node->stats.rx_bytes;
1453                 sinfo->tx_bytes = node->stats.tx_bytes;
1454                 sinfo->rx_packets = node->stats.rx_packets;
1455                 sinfo->tx_packets = node->stats.tx_packets;
1456                 sinfo->tx_failed = node->stats.tx_failed;
1457
1458                 mwifiex_parse_htinfo(priv, priv->tx_rate,
1459                                      node->stats.last_tx_htinfo,
1460                                      &sinfo->txrate);
1461                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1462
1463                 return 0;
1464         }
1465
1466         /* Get signal information from the firmware */
1467         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1468                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1469                 mwifiex_dbg(priv->adapter, ERROR,
1470                             "failed to get signal information\n");
1471                 return -EFAULT;
1472         }
1473
1474         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1475                 mwifiex_dbg(priv->adapter, ERROR,
1476                             "getting data rate error\n");
1477                 return -EFAULT;
1478         }
1479
1480         /* Get DTIM period information from firmware */
1481         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1482                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1483                          &priv->dtim_period, true);
1484
1485         mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo,
1486                              &sinfo->txrate);
1487
1488         sinfo->signal_avg = priv->bcn_rssi_avg;
1489         sinfo->rx_bytes = priv->stats.rx_bytes;
1490         sinfo->tx_bytes = priv->stats.tx_bytes;
1491         sinfo->rx_packets = priv->stats.rx_packets;
1492         sinfo->tx_packets = priv->stats.tx_packets;
1493         sinfo->signal = priv->bcn_rssi_avg;
1494         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1495         sinfo->txrate.legacy = rate * 5;
1496
1497         sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
1498         mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo,
1499                              &sinfo->rxrate);
1500
1501         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1502                 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1503                 sinfo->bss_param.flags = 0;
1504                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1505                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1506                         sinfo->bss_param.flags |=
1507                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1508                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1509                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1510                         sinfo->bss_param.flags |=
1511                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1512                 sinfo->bss_param.dtim_period = priv->dtim_period;
1513                 sinfo->bss_param.beacon_interval =
1514                         priv->curr_bss_params.bss_descriptor.beacon_period;
1515         }
1516
1517         return 0;
1518 }
1519
1520 /*
1521  * CFG802.11 operation handler to get station information.
1522  *
1523  * This function only works in connected mode, and dumps the
1524  * requested station information, if available.
1525  */
1526 static int
1527 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1528                              const u8 *mac, struct station_info *sinfo)
1529 {
1530         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1531
1532         if (!priv->media_connected)
1533                 return -ENOENT;
1534         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1535                 return -ENOENT;
1536
1537         return mwifiex_dump_station_info(priv, NULL, sinfo);
1538 }
1539
1540 /*
1541  * CFG802.11 operation handler to dump station information.
1542  */
1543 static int
1544 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1545                               int idx, u8 *mac, struct station_info *sinfo)
1546 {
1547         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1548         struct mwifiex_sta_node *node;
1549         int i;
1550
1551         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1552             priv->media_connected && idx == 0) {
1553                 ether_addr_copy(mac, priv->cfg_bssid);
1554                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1555         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1556                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1557                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1558
1559                 i = 0;
1560                 list_for_each_entry(node, &priv->sta_list, list) {
1561                         if (i++ != idx)
1562                                 continue;
1563                         ether_addr_copy(mac, node->mac_addr);
1564                         return mwifiex_dump_station_info(priv, node, sinfo);
1565                 }
1566         }
1567
1568         return -ENOENT;
1569 }
1570
1571 static int
1572 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1573                              int idx, struct survey_info *survey)
1574 {
1575         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1576         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1577         enum nl80211_band band;
1578
1579         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1580
1581         memset(survey, 0, sizeof(struct survey_info));
1582
1583         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1584             priv->media_connected && idx == 0) {
1585                         u8 curr_bss_band = priv->curr_bss_params.band;
1586                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1587
1588                         band = mwifiex_band_to_radio_type(curr_bss_band);
1589                         survey->channel = ieee80211_get_channel(wiphy,
1590                                 ieee80211_channel_to_frequency(chan, band));
1591
1592                         if (priv->bcn_nf_last) {
1593                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1594                                 survey->noise = priv->bcn_nf_last;
1595                         }
1596                         return 0;
1597         }
1598
1599         if (idx >= priv->adapter->num_in_chan_stats)
1600                 return -ENOENT;
1601
1602         if (!pchan_stats[idx].cca_scan_dur)
1603                 return 0;
1604
1605         band = pchan_stats[idx].bandcfg;
1606         survey->channel = ieee80211_get_channel(wiphy,
1607             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1608         survey->filled = SURVEY_INFO_NOISE_DBM |
1609                          SURVEY_INFO_TIME |
1610                          SURVEY_INFO_TIME_BUSY;
1611         survey->noise = pchan_stats[idx].noise;
1612         survey->time = pchan_stats[idx].cca_scan_dur;
1613         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1614
1615         return 0;
1616 }
1617
1618 /* Supported rates to be advertised to the cfg80211 */
1619 static struct ieee80211_rate mwifiex_rates[] = {
1620         {.bitrate = 10, .hw_value = 2, },
1621         {.bitrate = 20, .hw_value = 4, },
1622         {.bitrate = 55, .hw_value = 11, },
1623         {.bitrate = 110, .hw_value = 22, },
1624         {.bitrate = 60, .hw_value = 12, },
1625         {.bitrate = 90, .hw_value = 18, },
1626         {.bitrate = 120, .hw_value = 24, },
1627         {.bitrate = 180, .hw_value = 36, },
1628         {.bitrate = 240, .hw_value = 48, },
1629         {.bitrate = 360, .hw_value = 72, },
1630         {.bitrate = 480, .hw_value = 96, },
1631         {.bitrate = 540, .hw_value = 108, },
1632 };
1633
1634 /* Channel definitions to be advertised to cfg80211 */
1635 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1636         {.center_freq = 2412, .hw_value = 1, },
1637         {.center_freq = 2417, .hw_value = 2, },
1638         {.center_freq = 2422, .hw_value = 3, },
1639         {.center_freq = 2427, .hw_value = 4, },
1640         {.center_freq = 2432, .hw_value = 5, },
1641         {.center_freq = 2437, .hw_value = 6, },
1642         {.center_freq = 2442, .hw_value = 7, },
1643         {.center_freq = 2447, .hw_value = 8, },
1644         {.center_freq = 2452, .hw_value = 9, },
1645         {.center_freq = 2457, .hw_value = 10, },
1646         {.center_freq = 2462, .hw_value = 11, },
1647         {.center_freq = 2467, .hw_value = 12, },
1648         {.center_freq = 2472, .hw_value = 13, },
1649         {.center_freq = 2484, .hw_value = 14, },
1650 };
1651
1652 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1653         .channels = mwifiex_channels_2ghz,
1654         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1655         .bitrates = mwifiex_rates,
1656         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1657 };
1658
1659 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1660         {.center_freq = 5040, .hw_value = 8, },
1661         {.center_freq = 5060, .hw_value = 12, },
1662         {.center_freq = 5080, .hw_value = 16, },
1663         {.center_freq = 5170, .hw_value = 34, },
1664         {.center_freq = 5190, .hw_value = 38, },
1665         {.center_freq = 5210, .hw_value = 42, },
1666         {.center_freq = 5230, .hw_value = 46, },
1667         {.center_freq = 5180, .hw_value = 36, },
1668         {.center_freq = 5200, .hw_value = 40, },
1669         {.center_freq = 5220, .hw_value = 44, },
1670         {.center_freq = 5240, .hw_value = 48, },
1671         {.center_freq = 5260, .hw_value = 52, },
1672         {.center_freq = 5280, .hw_value = 56, },
1673         {.center_freq = 5300, .hw_value = 60, },
1674         {.center_freq = 5320, .hw_value = 64, },
1675         {.center_freq = 5500, .hw_value = 100, },
1676         {.center_freq = 5520, .hw_value = 104, },
1677         {.center_freq = 5540, .hw_value = 108, },
1678         {.center_freq = 5560, .hw_value = 112, },
1679         {.center_freq = 5580, .hw_value = 116, },
1680         {.center_freq = 5600, .hw_value = 120, },
1681         {.center_freq = 5620, .hw_value = 124, },
1682         {.center_freq = 5640, .hw_value = 128, },
1683         {.center_freq = 5660, .hw_value = 132, },
1684         {.center_freq = 5680, .hw_value = 136, },
1685         {.center_freq = 5700, .hw_value = 140, },
1686         {.center_freq = 5745, .hw_value = 149, },
1687         {.center_freq = 5765, .hw_value = 153, },
1688         {.center_freq = 5785, .hw_value = 157, },
1689         {.center_freq = 5805, .hw_value = 161, },
1690         {.center_freq = 5825, .hw_value = 165, },
1691 };
1692
1693 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1694         .channels = mwifiex_channels_5ghz,
1695         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1696         .bitrates = mwifiex_rates + 4,
1697         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1698 };
1699
1700
1701 /* Supported crypto cipher suits to be advertised to cfg80211 */
1702 static const u32 mwifiex_cipher_suites[] = {
1703         WLAN_CIPHER_SUITE_WEP40,
1704         WLAN_CIPHER_SUITE_WEP104,
1705         WLAN_CIPHER_SUITE_TKIP,
1706         WLAN_CIPHER_SUITE_CCMP,
1707         WLAN_CIPHER_SUITE_SMS4,
1708         WLAN_CIPHER_SUITE_AES_CMAC,
1709 };
1710
1711 /* Supported mgmt frame types to be advertised to cfg80211 */
1712 static const struct ieee80211_txrx_stypes
1713 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1714         [NL80211_IFTYPE_STATION] = {
1715                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1716                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1717                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1718                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1719         },
1720         [NL80211_IFTYPE_AP] = {
1721                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1722                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1723                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1724                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1725         },
1726         [NL80211_IFTYPE_P2P_CLIENT] = {
1727                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1728                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1729                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1730                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1731         },
1732         [NL80211_IFTYPE_P2P_GO] = {
1733                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1734                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1735                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1736                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1737         },
1738 };
1739
1740 /*
1741  * CFG802.11 operation handler for setting bit rates.
1742  *
1743  * Function configures data rates to firmware using bitrate mask
1744  * provided by cfg80211.
1745  */
1746 static int
1747 mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1748                                   struct net_device *dev,
1749                                   unsigned int link_id,
1750                                   const u8 *peer,
1751                                   const struct cfg80211_bitrate_mask *mask)
1752 {
1753         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1754         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1755         enum nl80211_band band;
1756         struct mwifiex_adapter *adapter = priv->adapter;
1757
1758         if (!priv->media_connected) {
1759                 mwifiex_dbg(adapter, ERROR,
1760                             "Can not set Tx data rate in disconnected state\n");
1761                 return -EINVAL;
1762         }
1763
1764         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1765
1766         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1767
1768         /* Fill HR/DSSS rates. */
1769         if (band == NL80211_BAND_2GHZ)
1770                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1771
1772         /* Fill OFDM rates */
1773         if (band == NL80211_BAND_2GHZ)
1774                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1775         else
1776                 bitmap_rates[1] = mask->control[band].legacy;
1777
1778         /* Fill HT MCS rates */
1779         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1780         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1781                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1782
1783        /* Fill VHT MCS rates */
1784         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1785                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1786                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1787                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1788         }
1789
1790         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1791                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1792 }
1793
1794 /*
1795  * CFG802.11 operation handler for connection quality monitoring.
1796  *
1797  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1798  * events to FW.
1799  */
1800 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1801                                                 struct net_device *dev,
1802                                                 s32 rssi_thold, u32 rssi_hyst)
1803 {
1804         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1805         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1806
1807         priv->cqm_rssi_thold = rssi_thold;
1808         priv->cqm_rssi_hyst = rssi_hyst;
1809
1810         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1811         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1812
1813         /* Subscribe/unsubscribe low and high rssi events */
1814         if (rssi_thold && rssi_hyst) {
1815                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1816                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1817                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1818                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1819                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1820                 return mwifiex_send_cmd(priv,
1821                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1822                                         0, 0, &subsc_evt, true);
1823         } else {
1824                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1825                 return mwifiex_send_cmd(priv,
1826                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1827                                         0, 0, &subsc_evt, true);
1828         }
1829
1830         return 0;
1831 }
1832
1833 /* cfg80211 operation handler for change_beacon.
1834  * Function retrieves and sets modified management IEs to FW.
1835  */
1836 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1837                                           struct net_device *dev,
1838                                           struct cfg80211_beacon_data *data)
1839 {
1840         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1841         struct mwifiex_adapter *adapter = priv->adapter;
1842
1843         mwifiex_cancel_scan(adapter);
1844
1845         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1846                 mwifiex_dbg(priv->adapter, ERROR,
1847                             "%s: bss_type mismatched\n", __func__);
1848                 return -EINVAL;
1849         }
1850
1851         if (!priv->bss_started) {
1852                 mwifiex_dbg(priv->adapter, ERROR,
1853                             "%s: bss not started\n", __func__);
1854                 return -EINVAL;
1855         }
1856
1857         if (mwifiex_set_mgmt_ies(priv, data)) {
1858                 mwifiex_dbg(priv->adapter, ERROR,
1859                             "%s: setting mgmt ies failed\n", __func__);
1860                 return -EFAULT;
1861         }
1862
1863         return 0;
1864 }
1865
1866 /* cfg80211 operation handler for del_station.
1867  * Function deauthenticates station which value is provided in mac parameter.
1868  * If mac is NULL/broadcast, all stations in associated station list are
1869  * deauthenticated. If bss is not started or there are no stations in
1870  * associated stations list, no action is taken.
1871  */
1872 static int
1873 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1874                              struct station_del_parameters *params)
1875 {
1876         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1877         struct mwifiex_sta_node *sta_node;
1878         u8 deauth_mac[ETH_ALEN];
1879
1880         if (!priv->bss_started && priv->wdev.cac_started) {
1881                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1882                 mwifiex_abort_cac(priv);
1883         }
1884
1885         if (list_empty(&priv->sta_list) || !priv->bss_started)
1886                 return 0;
1887
1888         if (!params->mac || is_broadcast_ether_addr(params->mac))
1889                 return 0;
1890
1891         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1892                     __func__, params->mac);
1893
1894         eth_zero_addr(deauth_mac);
1895
1896         spin_lock_bh(&priv->sta_list_spinlock);
1897         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1898         if (sta_node)
1899                 ether_addr_copy(deauth_mac, params->mac);
1900         spin_unlock_bh(&priv->sta_list_spinlock);
1901
1902         if (is_valid_ether_addr(deauth_mac)) {
1903                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1904                                      HostCmd_ACT_GEN_SET, 0,
1905                                      deauth_mac, true))
1906                         return -1;
1907         }
1908
1909         return 0;
1910 }
1911
1912 static int
1913 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1914 {
1915         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1916         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1917                                                         MWIFIEX_BSS_ROLE_ANY);
1918         struct mwifiex_ds_ant_cfg ant_cfg;
1919
1920         if (!tx_ant || !rx_ant)
1921                 return -EOPNOTSUPP;
1922
1923         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1924                 /* Not a MIMO chip. User should provide specific antenna number
1925                  * for Tx/Rx path or enable all antennas for diversity
1926                  */
1927                 if (tx_ant != rx_ant)
1928                         return -EOPNOTSUPP;
1929
1930                 if ((tx_ant & (tx_ant - 1)) &&
1931                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1932                         return -EOPNOTSUPP;
1933
1934                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1935                     (priv->adapter->number_of_antenna > 1)) {
1936                         tx_ant = RF_ANTENNA_AUTO;
1937                         rx_ant = RF_ANTENNA_AUTO;
1938                 }
1939         } else {
1940                 struct ieee80211_sta_ht_cap *ht_info;
1941                 int rx_mcs_supp;
1942                 enum nl80211_band band;
1943
1944                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1945                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1946                         if (adapter->is_hw_11ac_capable)
1947                                 adapter->usr_dot_11ac_mcs_support =
1948                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1949                 } else {
1950                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1951                         if (adapter->is_hw_11ac_capable)
1952                                 adapter->usr_dot_11ac_mcs_support =
1953                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1954                 }
1955
1956                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1957                         if (!adapter->wiphy->bands[band])
1958                                 continue;
1959
1960                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1961                         rx_mcs_supp =
1962                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1963                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1964                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1965                 }
1966         }
1967
1968         ant_cfg.tx_ant = tx_ant;
1969         ant_cfg.rx_ant = rx_ant;
1970
1971         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1972                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1973 }
1974
1975 static int
1976 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1977 {
1978         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1979         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1980                                                         MWIFIEX_BSS_ROLE_ANY);
1981         mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1982                          HostCmd_ACT_GEN_GET, 0, NULL, true);
1983
1984         *tx_ant = priv->tx_ant;
1985         *rx_ant = priv->rx_ant;
1986
1987         return 0;
1988 }
1989
1990 /* cfg80211 operation handler for stop ap.
1991  * Function stops BSS running at uAP interface.
1992  */
1993 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1994                                     unsigned int link_id)
1995 {
1996         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1997
1998         mwifiex_abort_cac(priv);
1999
2000         if (mwifiex_del_mgmt_ies(priv))
2001                 mwifiex_dbg(priv->adapter, ERROR,
2002                             "Failed to delete mgmt IEs!\n");
2003
2004         priv->ap_11n_enabled = 0;
2005         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
2006
2007         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
2008                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2009                 mwifiex_dbg(priv->adapter, ERROR,
2010                             "Failed to stop the BSS\n");
2011                 return -1;
2012         }
2013
2014         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
2015                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2016                 mwifiex_dbg(priv->adapter, ERROR,
2017                             "Failed to reset BSS\n");
2018                 return -1;
2019         }
2020
2021         if (netif_carrier_ok(priv->netdev))
2022                 netif_carrier_off(priv->netdev);
2023         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2024
2025         return 0;
2026 }
2027
2028 /* cfg80211 operation handler for start_ap.
2029  * Function sets beacon period, DTIM period, SSID and security into
2030  * AP config structure.
2031  * AP is configured with these settings and BSS is started.
2032  */
2033 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
2034                                      struct net_device *dev,
2035                                      struct cfg80211_ap_settings *params)
2036 {
2037         struct mwifiex_uap_bss_param *bss_cfg;
2038         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2039
2040         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
2041                 return -1;
2042
2043         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
2044         if (!bss_cfg)
2045                 return -ENOMEM;
2046
2047         mwifiex_set_sys_config_invalid_data(bss_cfg);
2048
2049         if (params->beacon_interval)
2050                 bss_cfg->beacon_period = params->beacon_interval;
2051         if (params->dtim_period)
2052                 bss_cfg->dtim_period = params->dtim_period;
2053
2054         if (params->ssid && params->ssid_len) {
2055                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2056                 bss_cfg->ssid.ssid_len = params->ssid_len;
2057         }
2058         if (params->inactivity_timeout > 0) {
2059                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2060                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2061                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2062         }
2063
2064         switch (params->hidden_ssid) {
2065         case NL80211_HIDDEN_SSID_NOT_IN_USE:
2066                 bss_cfg->bcast_ssid_ctl = 1;
2067                 break;
2068         case NL80211_HIDDEN_SSID_ZERO_LEN:
2069                 bss_cfg->bcast_ssid_ctl = 0;
2070                 break;
2071         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2072                 bss_cfg->bcast_ssid_ctl = 2;
2073                 break;
2074         default:
2075                 kfree(bss_cfg);
2076                 return -EINVAL;
2077         }
2078
2079         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2080         mwifiex_set_uap_rates(bss_cfg, params);
2081
2082         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2083                 mwifiex_dbg(priv->adapter, ERROR,
2084                             "Failed to parse security parameters!\n");
2085                 goto out;
2086         }
2087
2088         mwifiex_set_ht_params(priv, bss_cfg, params);
2089
2090         if (priv->adapter->is_hw_11ac_capable) {
2091                 mwifiex_set_vht_params(priv, bss_cfg, params);
2092                 mwifiex_set_vht_width(priv, params->chandef.width,
2093                                       priv->ap_11ac_enabled);
2094         }
2095
2096         if (priv->ap_11ac_enabled)
2097                 mwifiex_set_11ac_ba_params(priv);
2098         else
2099                 mwifiex_set_ba_params(priv);
2100
2101         mwifiex_set_wmm_params(priv, bss_cfg, params);
2102
2103         if (mwifiex_is_11h_active(priv))
2104                 mwifiex_set_tpc_params(priv, bss_cfg, params);
2105
2106         if (mwifiex_is_11h_active(priv) &&
2107             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2108                                            priv->bss_mode)) {
2109                 mwifiex_dbg(priv->adapter, INFO,
2110                             "Disable 11h extensions in FW\n");
2111                 if (mwifiex_11h_activate(priv, false)) {
2112                         mwifiex_dbg(priv->adapter, ERROR,
2113                                     "Failed to disable 11h extensions!!");
2114                         goto out;
2115                 }
2116                 priv->state_11h.is_11h_active = false;
2117         }
2118
2119         mwifiex_config_uap_11d(priv, &params->beacon);
2120
2121         if (mwifiex_config_start_uap(priv, bss_cfg)) {
2122                 mwifiex_dbg(priv->adapter, ERROR,
2123                             "Failed to start AP\n");
2124                 goto out;
2125         }
2126
2127         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2128                 goto out;
2129
2130         if (!netif_carrier_ok(priv->netdev))
2131                 netif_carrier_on(priv->netdev);
2132         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2133
2134         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2135         kfree(bss_cfg);
2136         return 0;
2137
2138 out:
2139         kfree(bss_cfg);
2140         return -1;
2141 }
2142
2143 /*
2144  * CFG802.11 operation handler for disconnection request.
2145  *
2146  * This function does not work when there is already a disconnection
2147  * procedure going on.
2148  */
2149 static int
2150 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2151                             u16 reason_code)
2152 {
2153         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2154
2155         if (!mwifiex_stop_bg_scan(priv))
2156                 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2157
2158         if (mwifiex_deauthenticate(priv, NULL))
2159                 return -EFAULT;
2160
2161         eth_zero_addr(priv->cfg_bssid);
2162         priv->hs2_enabled = false;
2163
2164         return 0;
2165 }
2166
2167 /*
2168  * This function informs the CFG802.11 subsystem of a new IBSS.
2169  *
2170  * The following information are sent to the CFG802.11 subsystem
2171  * to register the new IBSS. If we do not register the new IBSS,
2172  * a kernel panic will result.
2173  *      - SSID
2174  *      - SSID length
2175  *      - BSSID
2176  *      - Channel
2177  */
2178 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2179 {
2180         struct ieee80211_channel *chan;
2181         struct mwifiex_bss_info bss_info;
2182         struct cfg80211_bss *bss;
2183         int ie_len;
2184         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2185         enum nl80211_band band;
2186
2187         if (mwifiex_get_bss_info(priv, &bss_info))
2188                 return -1;
2189
2190         ie_buf[0] = WLAN_EID_SSID;
2191         ie_buf[1] = bss_info.ssid.ssid_len;
2192
2193         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2194                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2195         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2196
2197         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2198         chan = ieee80211_get_channel(priv->wdev.wiphy,
2199                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2200                                                        band));
2201
2202         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2203                                   CFG80211_BSS_FTYPE_UNKNOWN,
2204                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2205                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2206         if (bss) {
2207                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2208                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2209         }
2210
2211         return 0;
2212 }
2213
2214 /*
2215  * This function connects with a BSS.
2216  *
2217  * This function handles both Infra and Ad-Hoc modes. It also performs
2218  * validity checking on the provided parameters, disconnects from the
2219  * current BSS (if any), sets up the association/scan parameters,
2220  * including security settings, and performs specific SSID scan before
2221  * trying to connect.
2222  *
2223  * For Infra mode, the function returns failure if the specified SSID
2224  * is not found in scan table. However, for Ad-Hoc mode, it can create
2225  * the IBSS if it does not exist. On successful completion in either case,
2226  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2227  */
2228 static int
2229 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2230                        const u8 *ssid, const u8 *bssid, int mode,
2231                        struct ieee80211_channel *channel,
2232                        struct cfg80211_connect_params *sme, bool privacy,
2233                        struct cfg80211_bss **sel_bss)
2234 {
2235         struct cfg80211_ssid req_ssid;
2236         int ret, auth_type = 0;
2237         struct cfg80211_bss *bss = NULL;
2238         u8 is_scanning_required = 0;
2239
2240         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2241
2242         req_ssid.ssid_len = ssid_len;
2243         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2244                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2245                 return -EINVAL;
2246         }
2247
2248         memcpy(req_ssid.ssid, ssid, ssid_len);
2249         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2250                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2251                 return -EINVAL;
2252         }
2253
2254         /* As this is new association, clear locally stored
2255          * keys and security related flags */
2256         priv->sec_info.wpa_enabled = false;
2257         priv->sec_info.wpa2_enabled = false;
2258         priv->wep_key_curr_index = 0;
2259         priv->sec_info.encryption_mode = 0;
2260         priv->sec_info.is_authtype_auto = 0;
2261         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2262
2263         if (mode == NL80211_IFTYPE_ADHOC) {
2264                 u16 enable = true;
2265
2266                 /* set ibss coalescing_status */
2267                 ret = mwifiex_send_cmd(
2268                                 priv,
2269                                 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2270                                 HostCmd_ACT_GEN_SET, 0, &enable, true);
2271                 if (ret)
2272                         return ret;
2273
2274                 /* "privacy" is set only for ad-hoc mode */
2275                 if (privacy) {
2276                         /*
2277                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2278                          * the firmware can find a matching network from the
2279                          * scan. The cfg80211 does not give us the encryption
2280                          * mode at this stage so just setting it to WEP here.
2281                          */
2282                         priv->sec_info.encryption_mode =
2283                                         WLAN_CIPHER_SUITE_WEP104;
2284                         priv->sec_info.authentication_mode =
2285                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2286                 }
2287
2288                 goto done;
2289         }
2290
2291         /* Now handle infra mode. "sme" is valid for infra mode only */
2292         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2293                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2294                 priv->sec_info.is_authtype_auto = 1;
2295         } else {
2296                 auth_type = sme->auth_type;
2297         }
2298
2299         if (sme->crypto.n_ciphers_pairwise) {
2300                 priv->sec_info.encryption_mode =
2301                                                 sme->crypto.ciphers_pairwise[0];
2302                 priv->sec_info.authentication_mode = auth_type;
2303         }
2304
2305         if (sme->crypto.cipher_group) {
2306                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2307                 priv->sec_info.authentication_mode = auth_type;
2308         }
2309         if (sme->ie)
2310                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2311
2312         if (sme->key) {
2313                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2314                         mwifiex_dbg(priv->adapter, INFO,
2315                                     "info: setting wep encryption\t"
2316                                     "with key len %d\n", sme->key_len);
2317                         priv->wep_key_curr_index = sme->key_idx;
2318                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2319                                                  sme->key_len, sme->key_idx,
2320                                                  NULL, 0);
2321                 }
2322         }
2323 done:
2324         /*
2325          * Scan entries are valid for some time (15 sec). So we can save one
2326          * active scan time if we just try cfg80211_get_bss first. If it fails
2327          * then request scan and cfg80211_get_bss() again for final output.
2328          */
2329         while (1) {
2330                 if (is_scanning_required) {
2331                         /* Do specific SSID scanning */
2332                         if (mwifiex_request_scan(priv, &req_ssid)) {
2333                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2334                                 return -EFAULT;
2335                         }
2336                 }
2337
2338                 /* Find the BSS we want using available scan results */
2339                 if (mode == NL80211_IFTYPE_ADHOC)
2340                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2341                                                bssid, ssid, ssid_len,
2342                                                IEEE80211_BSS_TYPE_IBSS,
2343                                                IEEE80211_PRIVACY_ANY);
2344                 else
2345                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2346                                                bssid, ssid, ssid_len,
2347                                                IEEE80211_BSS_TYPE_ESS,
2348                                                IEEE80211_PRIVACY_ANY);
2349
2350                 if (!bss) {
2351                         if (is_scanning_required) {
2352                                 mwifiex_dbg(priv->adapter, MSG,
2353                                             "assoc: requested bss not found in scan results\n");
2354                                 break;
2355                         }
2356                         is_scanning_required = 1;
2357                 } else {
2358                         mwifiex_dbg(priv->adapter, MSG,
2359                                     "info: trying to associate to bssid %pM\n",
2360                                     bss->bssid);
2361                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2362                         break;
2363                 }
2364         }
2365
2366         if (bss)
2367                 cfg80211_ref_bss(priv->adapter->wiphy, bss);
2368
2369         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2370         if (ret)
2371                 goto cleanup;
2372
2373         if (mode == NL80211_IFTYPE_ADHOC) {
2374                 /* Inform the BSS information to kernel, otherwise
2375                  * kernel will give a panic after successful assoc */
2376                 if (mwifiex_cfg80211_inform_ibss_bss(priv)) {
2377                         ret = -EFAULT;
2378                         goto cleanup;
2379                 }
2380         }
2381
2382         /* Pass the selected BSS entry to caller. */
2383         if (sel_bss) {
2384                 *sel_bss = bss;
2385                 bss = NULL;
2386         }
2387
2388 cleanup:
2389         if (bss)
2390                 cfg80211_put_bss(priv->adapter->wiphy, bss);
2391         return ret;
2392 }
2393
2394 /*
2395  * CFG802.11 operation handler for association request.
2396  *
2397  * This function does not work when the current mode is set to Ad-Hoc, or
2398  * when there is already an association procedure going on. The given BSS
2399  * information is used to associate.
2400  */
2401 static int
2402 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2403                          struct cfg80211_connect_params *sme)
2404 {
2405         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2406         struct mwifiex_adapter *adapter = priv->adapter;
2407         struct cfg80211_bss *bss = NULL;
2408         int ret;
2409
2410         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2411                 mwifiex_dbg(adapter, ERROR,
2412                             "%s: reject infra assoc request in non-STA role\n",
2413                             dev->name);
2414                 return -EINVAL;
2415         }
2416
2417         if (priv->wdev.connected) {
2418                 mwifiex_dbg(adapter, ERROR,
2419                             "%s: already connected\n", dev->name);
2420                 return -EALREADY;
2421         }
2422
2423         if (priv->scan_block)
2424                 priv->scan_block = false;
2425
2426         if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2427             test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2428                 mwifiex_dbg(adapter, ERROR,
2429                             "%s: Ignore connection.\t"
2430                             "Card removed or FW in bad state\n",
2431                             dev->name);
2432                 return -EFAULT;
2433         }
2434
2435         mwifiex_dbg(adapter, INFO,
2436                     "info: Trying to associate to bssid %pM\n", sme->bssid);
2437
2438         if (!mwifiex_stop_bg_scan(priv))
2439                 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2440
2441         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2442                                      priv->bss_mode, sme->channel, sme, 0,
2443                                      &bss);
2444         if (!ret) {
2445                 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL,
2446                                      0, NULL, 0, WLAN_STATUS_SUCCESS,
2447                                      GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED);
2448                 mwifiex_dbg(priv->adapter, MSG,
2449                             "info: associated to bssid %pM successfully\n",
2450                             priv->cfg_bssid);
2451                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2452                     priv->adapter->auto_tdls &&
2453                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2454                         mwifiex_setup_auto_tdls_timer(priv);
2455         } else {
2456                 mwifiex_dbg(priv->adapter, ERROR,
2457                             "info: association to bssid %pM failed\n",
2458                             priv->cfg_bssid);
2459                 eth_zero_addr(priv->cfg_bssid);
2460
2461                 if (ret > 0)
2462                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2463                                                 NULL, 0, NULL, 0, ret,
2464                                                 GFP_KERNEL);
2465                 else
2466                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2467                                                 NULL, 0, NULL, 0,
2468                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2469                                                 GFP_KERNEL);
2470         }
2471
2472         return 0;
2473 }
2474
2475 /*
2476  * This function sets following parameters for ibss network.
2477  *  -  channel
2478  *  -  start band
2479  *  -  11n flag
2480  *  -  secondary channel offset
2481  */
2482 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2483                                    struct cfg80211_ibss_params *params)
2484 {
2485         struct mwifiex_adapter *adapter = priv->adapter;
2486         int index = 0, i;
2487         u8 config_bands = 0;
2488
2489         if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2490                 if (!params->basic_rates) {
2491                         config_bands = BAND_B | BAND_G;
2492                 } else {
2493                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2494                                 /*
2495                                  * Rates below 6 Mbps in the table are CCK
2496                                  * rates; 802.11b and from 6 they are OFDM;
2497                                  * 802.11G
2498                                  */
2499                                 if (mwifiex_rates[i].bitrate == 60) {
2500                                         index = 1 << i;
2501                                         break;
2502                                 }
2503                         }
2504
2505                         if (params->basic_rates < index) {
2506                                 config_bands = BAND_B;
2507                         } else {
2508                                 config_bands = BAND_G;
2509                                 if (params->basic_rates % index)
2510                                         config_bands |= BAND_B;
2511                         }
2512                 }
2513
2514                 if (cfg80211_get_chandef_type(&params->chandef) !=
2515                                                 NL80211_CHAN_NO_HT)
2516                         config_bands |= BAND_G | BAND_GN;
2517         } else {
2518                 if (cfg80211_get_chandef_type(&params->chandef) ==
2519                                                 NL80211_CHAN_NO_HT)
2520                         config_bands = BAND_A;
2521                 else
2522                         config_bands = BAND_AN | BAND_A;
2523         }
2524
2525         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2526                 adapter->config_bands = config_bands;
2527                 adapter->adhoc_start_band = config_bands;
2528
2529                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2530                         adapter->adhoc_11n_enabled = true;
2531                 else
2532                         adapter->adhoc_11n_enabled = false;
2533         }
2534
2535         adapter->sec_chan_offset =
2536                 mwifiex_chan_type_to_sec_chan_offset(
2537                         cfg80211_get_chandef_type(&params->chandef));
2538         priv->adhoc_channel = ieee80211_frequency_to_channel(
2539                                 params->chandef.chan->center_freq);
2540
2541         mwifiex_dbg(adapter, INFO,
2542                     "info: set ibss band %d, chan %d, chan offset %d\n",
2543                     config_bands, priv->adhoc_channel,
2544                     adapter->sec_chan_offset);
2545
2546         return 0;
2547 }
2548
2549 /*
2550  * CFG802.11 operation handler to join an IBSS.
2551  *
2552  * This function does not work in any mode other than Ad-Hoc, or if
2553  * a join operation is already in progress.
2554  */
2555 static int
2556 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2557                            struct cfg80211_ibss_params *params)
2558 {
2559         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2560         int ret = 0;
2561
2562         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2563                 mwifiex_dbg(priv->adapter, ERROR,
2564                             "request to join ibss received\t"
2565                             "when station is not in ibss mode\n");
2566                 goto done;
2567         }
2568
2569         mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n",
2570                     params->bssid);
2571
2572         mwifiex_set_ibss_params(priv, params);
2573
2574         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2575                                      params->bssid, priv->bss_mode,
2576                                      params->chandef.chan, NULL,
2577                                      params->privacy, NULL);
2578 done:
2579         if (!ret) {
2580                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2581                                      params->chandef.chan, GFP_KERNEL);
2582                 mwifiex_dbg(priv->adapter, MSG,
2583                             "info: joined/created adhoc network with bssid\t"
2584                             "%pM successfully\n", priv->cfg_bssid);
2585         } else {
2586                 mwifiex_dbg(priv->adapter, ERROR,
2587                             "info: failed creating/joining adhoc network\n");
2588         }
2589
2590         return ret;
2591 }
2592
2593 /*
2594  * CFG802.11 operation handler to leave an IBSS.
2595  *
2596  * This function does not work if a leave operation is
2597  * already in progress.
2598  */
2599 static int
2600 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2601 {
2602         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2603
2604         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2605                     priv->cfg_bssid);
2606         if (mwifiex_deauthenticate(priv, NULL))
2607                 return -EFAULT;
2608
2609         eth_zero_addr(priv->cfg_bssid);
2610
2611         return 0;
2612 }
2613
2614 /*
2615  * CFG802.11 operation handler for scan request.
2616  *
2617  * This function issues a scan request to the firmware based upon
2618  * the user specified scan configuration. On successful completion,
2619  * it also informs the results.
2620  */
2621 static int
2622 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2623                       struct cfg80211_scan_request *request)
2624 {
2625         struct net_device *dev = request->wdev->netdev;
2626         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2627         int i, offset, ret;
2628         struct ieee80211_channel *chan;
2629         struct ieee_types_header *ie;
2630         struct mwifiex_user_scan_cfg *user_scan_cfg;
2631         u8 mac_addr[ETH_ALEN];
2632
2633         mwifiex_dbg(priv->adapter, CMD,
2634                     "info: received scan request on %s\n", dev->name);
2635
2636         /* Block scan request if scan operation or scan cleanup when interface
2637          * is disabled is in process
2638          */
2639         if (priv->scan_request || priv->scan_aborting) {
2640                 mwifiex_dbg(priv->adapter, WARN,
2641                             "cmd: Scan already in process..\n");
2642                 return -EBUSY;
2643         }
2644
2645         if (!priv->wdev.connected && priv->scan_block)
2646                 priv->scan_block = false;
2647
2648         if (!mwifiex_stop_bg_scan(priv))
2649                 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2650
2651         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2652         if (!user_scan_cfg)
2653                 return -ENOMEM;
2654
2655         priv->scan_request = request;
2656
2657         if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2658                 get_random_mask_addr(mac_addr, request->mac_addr,
2659                                      request->mac_addr_mask);
2660                 ether_addr_copy(request->mac_addr, mac_addr);
2661                 ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2662         }
2663
2664         user_scan_cfg->num_ssids = request->n_ssids;
2665         user_scan_cfg->ssid_list = request->ssids;
2666
2667         if (request->ie && request->ie_len) {
2668                 offset = 0;
2669                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2670                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2671                                 continue;
2672                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2673                         ie = (struct ieee_types_header *)(request->ie + offset);
2674                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2675                         offset += sizeof(*ie) + ie->len;
2676
2677                         if (offset >= request->ie_len)
2678                                 break;
2679                 }
2680         }
2681
2682         for (i = 0; i < min_t(u32, request->n_channels,
2683                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2684                 chan = request->channels[i];
2685                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2686                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2687
2688                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2689                         user_scan_cfg->chan_list[i].scan_type =
2690                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2691                 else
2692                         user_scan_cfg->chan_list[i].scan_type =
2693                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2694
2695                 user_scan_cfg->chan_list[i].scan_time = 0;
2696         }
2697
2698         if (priv->adapter->scan_chan_gap_enabled &&
2699             mwifiex_is_any_intf_active(priv))
2700                 user_scan_cfg->scan_chan_gap =
2701                                               priv->adapter->scan_chan_gap_time;
2702
2703         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2704         kfree(user_scan_cfg);
2705         if (ret) {
2706                 mwifiex_dbg(priv->adapter, ERROR,
2707                             "scan failed: %d\n", ret);
2708                 priv->scan_aborting = false;
2709                 priv->scan_request = NULL;
2710                 return ret;
2711         }
2712
2713         if (request->ie && request->ie_len) {
2714                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2715                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2716                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2717                                 memset(&priv->vs_ie[i].ie, 0,
2718                                        MWIFIEX_MAX_VSIE_LEN);
2719                         }
2720                 }
2721         }
2722         return 0;
2723 }
2724
2725 /* CFG802.11 operation handler for sched_scan_start.
2726  *
2727  * This function issues a bgscan config request to the firmware based upon
2728  * the user specified sched_scan configuration. On successful completion,
2729  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2730  * query command to get sched_scan results from firmware.
2731  */
2732 static int
2733 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2734                                   struct net_device *dev,
2735                                   struct cfg80211_sched_scan_request *request)
2736 {
2737         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2738         int i, offset;
2739         struct ieee80211_channel *chan;
2740         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2741         struct ieee_types_header *ie;
2742
2743         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2744                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2745                           __func__);
2746                 return -EINVAL;
2747         }
2748
2749         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2750                    request->n_ssids, request->n_match_sets);
2751         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2752                    request->n_channels, request->scan_plans->interval,
2753                    (int)request->ie_len);
2754
2755         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2756         if (!bgscan_cfg)
2757                 return -ENOMEM;
2758
2759         if (priv->scan_request || priv->scan_aborting)
2760                 bgscan_cfg->start_later = true;
2761
2762         bgscan_cfg->num_ssids = request->n_match_sets;
2763         bgscan_cfg->ssid_list = request->match_sets;
2764
2765         if (request->ie && request->ie_len) {
2766                 offset = 0;
2767                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2768                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2769                                 continue;
2770                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2771                         ie = (struct ieee_types_header *)(request->ie + offset);
2772                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2773                         offset += sizeof(*ie) + ie->len;
2774
2775                         if (offset >= request->ie_len)
2776                                 break;
2777                 }
2778         }
2779
2780         for (i = 0; i < min_t(u32, request->n_channels,
2781                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2782                 chan = request->channels[i];
2783                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2784                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2785
2786                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2787                         bgscan_cfg->chan_list[i].scan_type =
2788                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2789                 else
2790                         bgscan_cfg->chan_list[i].scan_type =
2791                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2792
2793                 bgscan_cfg->chan_list[i].scan_time = 0;
2794         }
2795
2796         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2797                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2798
2799         /* Use at least 15 second for per scan cycle */
2800         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2801                                      MWIFIEX_BGSCAN_INTERVAL) ?
2802                                 request->scan_plans->interval :
2803                                 MWIFIEX_BGSCAN_INTERVAL;
2804
2805         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2806         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2807                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2808         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2809         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2810         bgscan_cfg->enable = true;
2811         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2812                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2813                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2814         }
2815
2816         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2817                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2818                 kfree(bgscan_cfg);
2819                 return -EFAULT;
2820         }
2821
2822         priv->sched_scanning = true;
2823
2824         kfree(bgscan_cfg);
2825         return 0;
2826 }
2827
2828 /* CFG802.11 operation handler for sched_scan_stop.
2829  *
2830  * This function issues a bgscan config command to disable
2831  * previous bgscan configuration in the firmware
2832  */
2833 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2834                                             struct net_device *dev, u64 reqid)
2835 {
2836         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2837
2838         wiphy_info(wiphy, "sched scan stop!");
2839         mwifiex_stop_bg_scan(priv);
2840
2841         return 0;
2842 }
2843
2844 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2845                                    struct mwifiex_private *priv)
2846 {
2847         struct mwifiex_adapter *adapter = priv->adapter;
2848
2849         vht_info->vht_supported = true;
2850
2851         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2852         /* Update MCS support for VHT */
2853         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2854                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2855         vht_info->vht_mcs.rx_highest = 0;
2856         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2857                                 adapter->hw_dot_11ac_mcs_support >> 16);
2858         vht_info->vht_mcs.tx_highest = 0;
2859 }
2860
2861 /*
2862  * This function sets up the CFG802.11 specific HT capability fields
2863  * with default values.
2864  *
2865  * The following default values are set -
2866  *      - HT Supported = True
2867  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2868  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2869  *      - HT Capabilities supported by firmware
2870  *      - MCS information, Rx mask = 0xff
2871  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2872  */
2873 static void
2874 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2875                       struct mwifiex_private *priv)
2876 {
2877         int rx_mcs_supp;
2878         struct ieee80211_mcs_info mcs_set;
2879         u8 *mcs = (u8 *)&mcs_set;
2880         struct mwifiex_adapter *adapter = priv->adapter;
2881
2882         ht_info->ht_supported = true;
2883         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2884         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2885
2886         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2887
2888         /* Fill HT capability information */
2889         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2890                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2891         else
2892                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2893
2894         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2895                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2896         else
2897                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2898
2899         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2900                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2901         else
2902                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2903
2904         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2905                 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2906         else
2907                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2908
2909         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2910                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2911         else
2912                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2913
2914         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2915                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2916         else
2917                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2918
2919         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2920                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2921         else
2922                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2923
2924         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2925                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2926         else
2927                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2928
2929         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2930         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2931
2932         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2933         /* Set MCS for 1x1/2x2 */
2934         memset(mcs, 0xff, rx_mcs_supp);
2935         /* Clear all the other values */
2936         memset(&mcs[rx_mcs_supp], 0,
2937                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2938         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2939             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2940                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2941                 SETHT_MCS32(mcs_set.rx_mask);
2942
2943         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2944
2945         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2946 }
2947
2948 /*
2949  *  create a new virtual interface with the given name and name assign type
2950  */
2951 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2952                                               const char *name,
2953                                               unsigned char name_assign_type,
2954                                               enum nl80211_iftype type,
2955                                               struct vif_params *params)
2956 {
2957         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2958         struct mwifiex_private *priv;
2959         struct net_device *dev;
2960         void *mdev_priv;
2961         int ret;
2962
2963         if (!adapter)
2964                 return ERR_PTR(-EFAULT);
2965
2966         switch (type) {
2967         case NL80211_IFTYPE_UNSPECIFIED:
2968         case NL80211_IFTYPE_STATION:
2969         case NL80211_IFTYPE_ADHOC:
2970                 if (adapter->curr_iface_comb.sta_intf ==
2971                     adapter->iface_limit.sta_intf) {
2972                         mwifiex_dbg(adapter, ERROR,
2973                                     "cannot create multiple sta/adhoc ifaces\n");
2974                         return ERR_PTR(-EINVAL);
2975                 }
2976
2977                 priv = mwifiex_get_unused_priv_by_bss_type(
2978                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2979                 if (!priv) {
2980                         mwifiex_dbg(adapter, ERROR,
2981                                     "could not get free private struct\n");
2982                         return ERR_PTR(-EFAULT);
2983                 }
2984
2985                 priv->wdev.wiphy = wiphy;
2986                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2987
2988                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2989                         priv->bss_mode = NL80211_IFTYPE_STATION;
2990                 else
2991                         priv->bss_mode = type;
2992
2993                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2994                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2995                 priv->bss_priority = 0;
2996                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2997
2998                 break;
2999         case NL80211_IFTYPE_AP:
3000                 if (adapter->curr_iface_comb.uap_intf ==
3001                     adapter->iface_limit.uap_intf) {
3002                         mwifiex_dbg(adapter, ERROR,
3003                                     "cannot create multiple AP ifaces\n");
3004                         return ERR_PTR(-EINVAL);
3005                 }
3006
3007                 priv = mwifiex_get_unused_priv_by_bss_type(
3008                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
3009                 if (!priv) {
3010                         mwifiex_dbg(adapter, ERROR,
3011                                     "could not get free private struct\n");
3012                         return ERR_PTR(-EFAULT);
3013                 }
3014
3015                 priv->wdev.wiphy = wiphy;
3016                 priv->wdev.iftype = NL80211_IFTYPE_AP;
3017
3018                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
3019                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3020                 priv->bss_priority = 0;
3021                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
3022                 priv->bss_started = 0;
3023                 priv->bss_mode = type;
3024
3025                 break;
3026         case NL80211_IFTYPE_P2P_CLIENT:
3027                 if (adapter->curr_iface_comb.p2p_intf ==
3028                     adapter->iface_limit.p2p_intf) {
3029                         mwifiex_dbg(adapter, ERROR,
3030                                     "cannot create multiple P2P ifaces\n");
3031                         return ERR_PTR(-EINVAL);
3032                 }
3033
3034                 priv = mwifiex_get_unused_priv_by_bss_type(
3035                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
3036                 if (!priv) {
3037                         mwifiex_dbg(adapter, ERROR,
3038                                     "could not get free private struct\n");
3039                         return ERR_PTR(-EFAULT);
3040                 }
3041
3042                 priv->wdev.wiphy = wiphy;
3043                 /* At start-up, wpa_supplicant tries to change the interface
3044                  * to NL80211_IFTYPE_STATION if it is not managed mode.
3045                  */
3046                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
3047                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
3048
3049                 /* Setting bss_type to P2P tells firmware that this interface
3050                  * is receiving P2P peers found during find phase and doing
3051                  * action frame handshake.
3052                  */
3053                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
3054
3055                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3056                 priv->bss_priority = 0;
3057                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3058                 priv->bss_started = 0;
3059
3060                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
3061                         memset(&priv->wdev, 0, sizeof(priv->wdev));
3062                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3063                         return ERR_PTR(-EFAULT);
3064                 }
3065
3066                 break;
3067         default:
3068                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3069                 return ERR_PTR(-EINVAL);
3070         }
3071
3072         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3073                                name_assign_type, ether_setup,
3074                                IEEE80211_NUM_ACS, 1);
3075         if (!dev) {
3076                 mwifiex_dbg(adapter, ERROR,
3077                             "no memory available for netdevice\n");
3078                 ret = -ENOMEM;
3079                 goto err_alloc_netdev;
3080         }
3081
3082         mwifiex_init_priv_params(priv, dev);
3083
3084         priv->netdev = dev;
3085
3086         if (!adapter->mfg_mode) {
3087                 mwifiex_set_mac_address(priv, dev, false, NULL);
3088
3089                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3090                                        HostCmd_ACT_GEN_SET, 0, NULL, true);
3091                 if (ret)
3092                         goto err_set_bss_mode;
3093
3094                 ret = mwifiex_sta_init_cmd(priv, false, false);
3095                 if (ret)
3096                         goto err_sta_init;
3097         }
3098
3099         mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3100         if (adapter->is_hw_11ac_capable)
3101                 mwifiex_setup_vht_caps(
3102                         &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3103
3104         if (adapter->config_bands & BAND_A)
3105                 mwifiex_setup_ht_caps(
3106                         &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3107
3108         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3109                 mwifiex_setup_vht_caps(
3110                         &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3111
3112         dev_net_set(dev, wiphy_net(wiphy));
3113         dev->ieee80211_ptr = &priv->wdev;
3114         dev->ieee80211_ptr->iftype = priv->bss_mode;
3115         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3116
3117         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3118         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3119         dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN;
3120         dev->ethtool_ops = &mwifiex_ethtool_ops;
3121
3122         mdev_priv = netdev_priv(dev);
3123         *((unsigned long *) mdev_priv) = (unsigned long) priv;
3124
3125         SET_NETDEV_DEV(dev, adapter->dev);
3126
3127         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3128                                                   WQ_HIGHPRI |
3129                                                   WQ_MEM_RECLAIM |
3130                                                   WQ_UNBOUND, 0, name);
3131         if (!priv->dfs_cac_workqueue) {
3132                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3133                 ret = -ENOMEM;
3134                 goto err_alloc_cac;
3135         }
3136
3137         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3138
3139         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3140                                                       WQ_HIGHPRI | WQ_UNBOUND |
3141                                                       WQ_MEM_RECLAIM, 0, name);
3142         if (!priv->dfs_chan_sw_workqueue) {
3143                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3144                 ret = -ENOMEM;
3145                 goto err_alloc_chsw;
3146         }
3147
3148         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3149                           mwifiex_dfs_chan_sw_work_queue);
3150
3151         mutex_init(&priv->async_mutex);
3152
3153         /* Register network device */
3154         if (cfg80211_register_netdevice(dev)) {
3155                 mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3156                 ret = -EFAULT;
3157                 goto err_reg_netdev;
3158         }
3159
3160         mwifiex_dbg(adapter, INFO,
3161                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
3162
3163 #ifdef CONFIG_DEBUG_FS
3164         mwifiex_dev_debugfs_init(priv);
3165 #endif
3166
3167         update_vif_type_counter(adapter, type, +1);
3168
3169         return &priv->wdev;
3170
3171 err_reg_netdev:
3172         destroy_workqueue(priv->dfs_chan_sw_workqueue);
3173         priv->dfs_chan_sw_workqueue = NULL;
3174 err_alloc_chsw:
3175         destroy_workqueue(priv->dfs_cac_workqueue);
3176         priv->dfs_cac_workqueue = NULL;
3177 err_alloc_cac:
3178         free_netdev(dev);
3179         priv->netdev = NULL;
3180 err_sta_init:
3181 err_set_bss_mode:
3182 err_alloc_netdev:
3183         memset(&priv->wdev, 0, sizeof(priv->wdev));
3184         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3185         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3186         return ERR_PTR(ret);
3187 }
3188 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3189
3190 /*
3191  * del_virtual_intf: remove the virtual interface determined by dev
3192  */
3193 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3194 {
3195         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3196         struct mwifiex_adapter *adapter = priv->adapter;
3197         struct sk_buff *skb, *tmp;
3198
3199 #ifdef CONFIG_DEBUG_FS
3200         mwifiex_dev_debugfs_remove(priv);
3201 #endif
3202
3203         if (priv->sched_scanning)
3204                 priv->sched_scanning = false;
3205
3206         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3207
3208         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3209                 skb_unlink(skb, &priv->bypass_txq);
3210                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3211         }
3212
3213         if (netif_carrier_ok(priv->netdev))
3214                 netif_carrier_off(priv->netdev);
3215
3216         if (wdev->netdev->reg_state == NETREG_REGISTERED)
3217                 cfg80211_unregister_netdevice(wdev->netdev);
3218
3219         if (priv->dfs_cac_workqueue) {
3220                 destroy_workqueue(priv->dfs_cac_workqueue);
3221                 priv->dfs_cac_workqueue = NULL;
3222         }
3223
3224         if (priv->dfs_chan_sw_workqueue) {
3225                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3226                 priv->dfs_chan_sw_workqueue = NULL;
3227         }
3228         /* Clear the priv in adapter */
3229         priv->netdev = NULL;
3230
3231         update_vif_type_counter(adapter, priv->bss_mode, -1);
3232
3233         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3234
3235         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3236             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3237                 kfree(priv->hist_data);
3238
3239         return 0;
3240 }
3241 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3242
3243 static bool
3244 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3245                              u8 max_byte_seq)
3246 {
3247         int j, k, valid_byte_cnt = 0;
3248         bool dont_care_byte = false;
3249
3250         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3251                 for (k = 0; k < 8; k++) {
3252                         if (pat->mask[j] & 1 << k) {
3253                                 memcpy(byte_seq + valid_byte_cnt,
3254                                        &pat->pattern[j * 8 + k], 1);
3255                                 valid_byte_cnt++;
3256                                 if (dont_care_byte)
3257                                         return false;
3258                         } else {
3259                                 if (valid_byte_cnt)
3260                                         dont_care_byte = true;
3261                         }
3262
3263                         /* wildcard bytes record as the offset
3264                          * before the valid byte
3265                          */
3266                         if (!valid_byte_cnt && !dont_care_byte)
3267                                 pat->pkt_offset++;
3268
3269                         if (valid_byte_cnt > max_byte_seq)
3270                                 return false;
3271                 }
3272         }
3273
3274         byte_seq[max_byte_seq] = valid_byte_cnt;
3275
3276         return true;
3277 }
3278
3279 #ifdef CONFIG_PM
3280 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3281                                            struct mwifiex_mef_entry *mef_entry)
3282 {
3283         int i, filt_num = 0, num_ipv4 = 0;
3284         struct in_device *in_dev;
3285         struct in_ifaddr *ifa;
3286         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3287         struct mwifiex_adapter *adapter = priv->adapter;
3288
3289         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3290         mef_entry->action = MEF_ACTION_AUTO_ARP;
3291
3292         /* Enable ARP offload feature */
3293         memset(ips, 0, sizeof(ips));
3294         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3295                 if (adapter->priv[i]->netdev) {
3296                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3297                         if (!in_dev)
3298                                 continue;
3299                         ifa = rtnl_dereference(in_dev->ifa_list);
3300                         if (!ifa || !ifa->ifa_local)
3301                                 continue;
3302                         ips[i] = ifa->ifa_local;
3303                         num_ipv4++;
3304                 }
3305         }
3306
3307         for (i = 0; i < num_ipv4; i++) {
3308                 if (!ips[i])
3309                         continue;
3310                 mef_entry->filter[filt_num].repeat = 1;
3311                 memcpy(mef_entry->filter[filt_num].byte_seq,
3312                        (u8 *)&ips[i], sizeof(ips[i]));
3313                 mef_entry->filter[filt_num].
3314                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3315                         sizeof(ips[i]);
3316                 mef_entry->filter[filt_num].offset = 46;
3317                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3318                 if (filt_num) {
3319                         mef_entry->filter[filt_num].filt_action =
3320                                 TYPE_OR;
3321                 }
3322                 filt_num++;
3323         }
3324
3325         mef_entry->filter[filt_num].repeat = 1;
3326         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3327         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3328         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3329         mef_entry->filter[filt_num].offset = 20;
3330         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3331         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3332 }
3333
3334 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3335                                         struct mwifiex_ds_mef_cfg *mef_cfg,
3336                                         struct mwifiex_mef_entry *mef_entry,
3337                                         struct cfg80211_wowlan *wowlan)
3338 {
3339         int i, filt_num = 0, ret = 0;
3340         bool first_pat = true;
3341         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3342         static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3343         static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3344
3345         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3346         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3347
3348         for (i = 0; i < wowlan->n_patterns; i++) {
3349                 memset(byte_seq, 0, sizeof(byte_seq));
3350                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3351                                         byte_seq,
3352                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3353                         mwifiex_dbg(priv->adapter, ERROR,
3354                                     "Pattern not supported\n");
3355                         return -EOPNOTSUPP;
3356                 }
3357
3358                 if (!wowlan->patterns[i].pkt_offset) {
3359                         if (!(byte_seq[0] & 0x01) &&
3360                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3361                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3362                                 continue;
3363                         } else if (is_broadcast_ether_addr(byte_seq)) {
3364                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3365                                 continue;
3366                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3367                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3368                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3369                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3370                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3371                                 continue;
3372                         }
3373                 }
3374                 mef_entry->filter[filt_num].repeat = 1;
3375                 mef_entry->filter[filt_num].offset =
3376                         wowlan->patterns[i].pkt_offset;
3377                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3378                                 sizeof(byte_seq));
3379                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3380
3381                 if (first_pat) {
3382                         first_pat = false;
3383                         mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3384                 } else {
3385                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3386                 }
3387
3388                 filt_num++;
3389         }
3390
3391         if (wowlan->magic_pkt) {
3392                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3393                 mef_entry->filter[filt_num].repeat = 16;
3394                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3395                                 ETH_ALEN);
3396                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3397                         ETH_ALEN;
3398                 mef_entry->filter[filt_num].offset = 28;
3399                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3400                 if (filt_num)
3401                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3402
3403                 filt_num++;
3404                 mef_entry->filter[filt_num].repeat = 16;
3405                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3406                                 ETH_ALEN);
3407                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3408                         ETH_ALEN;
3409                 mef_entry->filter[filt_num].offset = 56;
3410                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3411                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3412                 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3413         }
3414         return ret;
3415 }
3416
3417 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3418                                   struct cfg80211_wowlan *wowlan)
3419 {
3420         int ret = 0, num_entries = 1;
3421         struct mwifiex_ds_mef_cfg mef_cfg;
3422         struct mwifiex_mef_entry *mef_entry;
3423
3424         if (wowlan->n_patterns || wowlan->magic_pkt)
3425                 num_entries++;
3426
3427         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3428         if (!mef_entry)
3429                 return -ENOMEM;
3430
3431         memset(&mef_cfg, 0, sizeof(mef_cfg));
3432         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3433                 MWIFIEX_CRITERIA_UNICAST;
3434         mef_cfg.num_entries = num_entries;
3435         mef_cfg.mef_entry = mef_entry;
3436
3437         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3438
3439         if (wowlan->n_patterns || wowlan->magic_pkt) {
3440                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3441                                                    &mef_entry[1], wowlan);
3442                 if (ret)
3443                         goto err;
3444         }
3445
3446         if (!mef_cfg.criteria)
3447                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3448                         MWIFIEX_CRITERIA_UNICAST |
3449                         MWIFIEX_CRITERIA_MULTICAST;
3450
3451         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3452                         HostCmd_ACT_GEN_SET, 0,
3453                         &mef_cfg, true);
3454
3455 err:
3456         kfree(mef_entry);
3457         return ret;
3458 }
3459
3460 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3461                                     struct cfg80211_wowlan *wowlan)
3462 {
3463         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3464         struct mwifiex_ds_hs_cfg hs_cfg;
3465         int i, ret = 0, retry_num = 10;
3466         struct mwifiex_private *priv;
3467         struct mwifiex_private *sta_priv =
3468                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3469
3470         sta_priv->scan_aborting = true;
3471         for (i = 0; i < adapter->priv_num; i++) {
3472                 priv = adapter->priv[i];
3473                 mwifiex_abort_cac(priv);
3474         }
3475
3476         mwifiex_cancel_all_pending_cmd(adapter);
3477
3478         for (i = 0; i < adapter->priv_num; i++) {
3479                 priv = adapter->priv[i];
3480                 if (priv && priv->netdev)
3481                         netif_device_detach(priv->netdev);
3482         }
3483
3484         for (i = 0; i < retry_num; i++) {
3485                 if (!mwifiex_wmm_lists_empty(adapter) ||
3486                     !mwifiex_bypass_txlist_empty(adapter) ||
3487                     !skb_queue_empty(&adapter->tx_data_q))
3488                         usleep_range(10000, 15000);
3489                 else
3490                         break;
3491         }
3492
3493         if (!wowlan) {
3494                 mwifiex_dbg(adapter, INFO,
3495                             "None of the WOWLAN triggers enabled\n");
3496                 ret = 0;
3497                 goto done;
3498         }
3499
3500         if (!sta_priv->media_connected && !wowlan->nd_config) {
3501                 mwifiex_dbg(adapter, ERROR,
3502                             "Can not configure WOWLAN in disconnected state\n");
3503                 ret = 0;
3504                 goto done;
3505         }
3506
3507         ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3508         if (ret) {
3509                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3510                 goto done;
3511         }
3512
3513         memset(&hs_cfg, 0, sizeof(hs_cfg));
3514         hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3515
3516         if (wowlan->nd_config) {
3517                 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3518                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3519                 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3520                                                   wowlan->nd_config);
3521         }
3522
3523         if (wowlan->disconnect) {
3524                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3525                 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3526         }
3527
3528         hs_cfg.is_invoke_hostcmd = false;
3529         hs_cfg.gpio = adapter->hs_cfg.gpio;
3530         hs_cfg.gap = adapter->hs_cfg.gap;
3531         ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3532                                     MWIFIEX_SYNC_CMD, &hs_cfg);
3533         if (ret)
3534                 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3535
3536 done:
3537         sta_priv->scan_aborting = false;
3538         return ret;
3539 }
3540
3541 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3542 {
3543         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3544         struct mwifiex_private *priv;
3545         struct mwifiex_ds_wakeup_reason wakeup_reason;
3546         struct cfg80211_wowlan_wakeup wakeup_report;
3547         int i;
3548         bool report_wakeup_reason = true;
3549
3550         for (i = 0; i < adapter->priv_num; i++) {
3551                 priv = adapter->priv[i];
3552                 if (priv && priv->netdev)
3553                         netif_device_attach(priv->netdev);
3554         }
3555
3556         if (!wiphy->wowlan_config)
3557                 goto done;
3558
3559         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3560         mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3561                                   &wakeup_reason);
3562         memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3563
3564         wakeup_report.pattern_idx = -1;
3565
3566         switch (wakeup_reason.hs_wakeup_reason) {
3567         case NO_HSWAKEUP_REASON:
3568                 break;
3569         case BCAST_DATA_MATCHED:
3570                 break;
3571         case MCAST_DATA_MATCHED:
3572                 break;
3573         case UCAST_DATA_MATCHED:
3574                 break;
3575         case MASKTABLE_EVENT_MATCHED:
3576                 break;
3577         case NON_MASKABLE_EVENT_MATCHED:
3578                 if (wiphy->wowlan_config->disconnect)
3579                         wakeup_report.disconnect = true;
3580                 if (wiphy->wowlan_config->nd_config)
3581                         wakeup_report.net_detect = adapter->nd_info;
3582                 break;
3583         case NON_MASKABLE_CONDITION_MATCHED:
3584                 break;
3585         case MAGIC_PATTERN_MATCHED:
3586                 if (wiphy->wowlan_config->magic_pkt)
3587                         wakeup_report.magic_pkt = true;
3588                 if (wiphy->wowlan_config->n_patterns)
3589                         wakeup_report.pattern_idx = 1;
3590                 break;
3591         case GTK_REKEY_FAILURE:
3592                 if (wiphy->wowlan_config->gtk_rekey_failure)
3593                         wakeup_report.gtk_rekey_failure = true;
3594                 break;
3595         default:
3596                 report_wakeup_reason = false;
3597                 break;
3598         }
3599
3600         if (report_wakeup_reason)
3601                 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3602                                               GFP_KERNEL);
3603
3604 done:
3605         if (adapter->nd_info) {
3606                 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3607                         kfree(adapter->nd_info->matches[i]);
3608                 kfree(adapter->nd_info);
3609                 adapter->nd_info = NULL;
3610         }
3611
3612         return 0;
3613 }
3614
3615 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3616                                        bool enabled)
3617 {
3618         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3619
3620         device_set_wakeup_enable(adapter->dev, enabled);
3621 }
3622
3623 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3624                                   struct cfg80211_gtk_rekey_data *data)
3625 {
3626         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3627
3628         if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3629                 return -EOPNOTSUPP;
3630
3631         return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3632                                 HostCmd_ACT_GEN_SET, 0, data, true);
3633 }
3634
3635 #endif
3636
3637 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3638 {
3639         static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3640         static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3641         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3642
3643         if ((byte_seq[0] & 0x01) &&
3644             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3645                 return PACKET_TYPE_UNICAST;
3646         else if (!memcmp(byte_seq, bc_mac, 4))
3647                 return PACKET_TYPE_BROADCAST;
3648         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3649                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3650                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3651                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3652                 return PACKET_TYPE_MULTICAST;
3653
3654         return 0;
3655 }
3656
3657 static int
3658 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3659                                 struct cfg80211_coalesce_rules *crule,
3660                                 struct mwifiex_coalesce_rule *mrule)
3661 {
3662         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3663         struct filt_field_param *param;
3664         int i;
3665
3666         mrule->max_coalescing_delay = crule->delay;
3667
3668         param = mrule->params;
3669
3670         for (i = 0; i < crule->n_patterns; i++) {
3671                 memset(byte_seq, 0, sizeof(byte_seq));
3672                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3673                                                   byte_seq,
3674                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3675                         mwifiex_dbg(priv->adapter, ERROR,
3676                                     "Pattern not supported\n");
3677                         return -EOPNOTSUPP;
3678                 }
3679
3680                 if (!crule->patterns[i].pkt_offset) {
3681                         u8 pkt_type;
3682
3683                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3684                         if (pkt_type && mrule->pkt_type) {
3685                                 mwifiex_dbg(priv->adapter, ERROR,
3686                                             "Multiple packet types not allowed\n");
3687                                 return -EOPNOTSUPP;
3688                         } else if (pkt_type) {
3689                                 mrule->pkt_type = pkt_type;
3690                                 continue;
3691                         }
3692                 }
3693
3694                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3695                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3696                 else
3697                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3698
3699                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3700                 memcpy(param->operand_byte_stream, byte_seq,
3701                        param->operand_len);
3702                 param->offset = crule->patterns[i].pkt_offset;
3703                 param++;
3704
3705                 mrule->num_of_fields++;
3706         }
3707
3708         if (!mrule->pkt_type) {
3709                 mwifiex_dbg(priv->adapter, ERROR,
3710                             "Packet type can not be determined\n");
3711                 return -EOPNOTSUPP;
3712         }
3713
3714         return 0;
3715 }
3716
3717 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3718                                          struct cfg80211_coalesce *coalesce)
3719 {
3720         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3721         int i, ret;
3722         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3723         struct mwifiex_private *priv =
3724                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3725
3726         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3727         if (!coalesce) {
3728                 mwifiex_dbg(adapter, WARN,
3729                             "Disable coalesce and reset all previous rules\n");
3730                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3731                                         HostCmd_ACT_GEN_SET, 0,
3732                                         &coalesce_cfg, true);
3733         }
3734
3735         coalesce_cfg.num_of_rules = coalesce->n_rules;
3736         for (i = 0; i < coalesce->n_rules; i++) {
3737                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3738                                                       &coalesce_cfg.rule[i]);
3739                 if (ret) {
3740                         mwifiex_dbg(adapter, ERROR,
3741                                     "Recheck the patterns provided for rule %d\n",
3742                                 i + 1);
3743                         return ret;
3744                 }
3745         }
3746
3747         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3748                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3749 }
3750
3751 /* cfg80211 ops handler for tdls_mgmt.
3752  * Function prepares TDLS action frame packets and forwards them to FW
3753  */
3754 static int
3755 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3756                            const u8 *peer, int link_id, u8 action_code,
3757                            u8 dialog_token, u16 status_code,
3758                            u32 peer_capability, bool initiator,
3759                            const u8 *extra_ies, size_t extra_ies_len)
3760 {
3761         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3762         int ret;
3763
3764         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3765                 return -EOPNOTSUPP;
3766
3767         /* make sure we are in station mode and connected */
3768         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3769                 return -EOPNOTSUPP;
3770
3771         switch (action_code) {
3772         case WLAN_TDLS_SETUP_REQUEST:
3773                 mwifiex_dbg(priv->adapter, MSG,
3774                             "Send TDLS Setup Request to %pM status_code=%d\n",
3775                             peer, status_code);
3776                 mwifiex_add_auto_tdls_peer(priv, peer);
3777                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3778                                                    dialog_token, status_code,
3779                                                    extra_ies, extra_ies_len);
3780                 break;
3781         case WLAN_TDLS_SETUP_RESPONSE:
3782                 mwifiex_add_auto_tdls_peer(priv, peer);
3783                 mwifiex_dbg(priv->adapter, MSG,
3784                             "Send TDLS Setup Response to %pM status_code=%d\n",
3785                             peer, status_code);
3786                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3787                                                    dialog_token, status_code,
3788                                                    extra_ies, extra_ies_len);
3789                 break;
3790         case WLAN_TDLS_SETUP_CONFIRM:
3791                 mwifiex_dbg(priv->adapter, MSG,
3792                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3793                             status_code);
3794                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3795                                                    dialog_token, status_code,
3796                                                    extra_ies, extra_ies_len);
3797                 break;
3798         case WLAN_TDLS_TEARDOWN:
3799                 mwifiex_dbg(priv->adapter, MSG,
3800                             "Send TDLS Tear down to %pM\n", peer);
3801                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3802                                                    dialog_token, status_code,
3803                                                    extra_ies, extra_ies_len);
3804                 break;
3805         case WLAN_TDLS_DISCOVERY_REQUEST:
3806                 mwifiex_dbg(priv->adapter, MSG,
3807                             "Send TDLS Discovery Request to %pM\n", peer);
3808                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3809                                                    dialog_token, status_code,
3810                                                    extra_ies, extra_ies_len);
3811                 break;
3812         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3813                 mwifiex_dbg(priv->adapter, MSG,
3814                             "Send TDLS Discovery Response to %pM\n", peer);
3815                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3816                                                    dialog_token, status_code,
3817                                                    extra_ies, extra_ies_len);
3818                 break;
3819         default:
3820                 mwifiex_dbg(priv->adapter, ERROR,
3821                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3822                 ret = -EINVAL;
3823                 break;
3824         }
3825
3826         return ret;
3827 }
3828
3829 static int
3830 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3831                            const u8 *peer, enum nl80211_tdls_operation action)
3832 {
3833         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3834
3835         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3836             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3837                 return -EOPNOTSUPP;
3838
3839         /* make sure we are in station mode and connected */
3840         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3841                 return -EOPNOTSUPP;
3842
3843         mwifiex_dbg(priv->adapter, MSG,
3844                     "TDLS peer=%pM, oper=%d\n", peer, action);
3845
3846         switch (action) {
3847         case NL80211_TDLS_ENABLE_LINK:
3848                 action = MWIFIEX_TDLS_ENABLE_LINK;
3849                 break;
3850         case NL80211_TDLS_DISABLE_LINK:
3851                 action = MWIFIEX_TDLS_DISABLE_LINK;
3852                 break;
3853         case NL80211_TDLS_TEARDOWN:
3854                 /* shouldn't happen!*/
3855                 mwifiex_dbg(priv->adapter, ERROR,
3856                             "tdls_oper: teardown from driver not supported\n");
3857                 return -EINVAL;
3858         case NL80211_TDLS_SETUP:
3859                 /* shouldn't happen!*/
3860                 mwifiex_dbg(priv->adapter, ERROR,
3861                             "tdls_oper: setup from driver not supported\n");
3862                 return -EINVAL;
3863         case NL80211_TDLS_DISCOVERY_REQ:
3864                 /* shouldn't happen!*/
3865                 mwifiex_dbg(priv->adapter, ERROR,
3866                             "tdls_oper: discovery from driver not supported\n");
3867                 return -EINVAL;
3868         default:
3869                 mwifiex_dbg(priv->adapter, ERROR,
3870                             "tdls_oper: operation not supported\n");
3871                 return -EOPNOTSUPP;
3872         }
3873
3874         return mwifiex_tdls_oper(priv, peer, action);
3875 }
3876
3877 static int
3878 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3879                                   const u8 *addr, u8 oper_class,
3880                                   struct cfg80211_chan_def *chandef)
3881 {
3882         struct mwifiex_sta_node *sta_ptr;
3883         u16 chan;
3884         u8 second_chan_offset, band;
3885         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3886
3887         spin_lock_bh(&priv->sta_list_spinlock);
3888         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3889         if (!sta_ptr) {
3890                 spin_unlock_bh(&priv->sta_list_spinlock);
3891                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3892                           __func__, addr);
3893                 return -ENOENT;
3894         }
3895
3896         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3897               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3898                 spin_unlock_bh(&priv->sta_list_spinlock);
3899                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3900                 return -ENOENT;
3901         }
3902
3903         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3904             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3905                 spin_unlock_bh(&priv->sta_list_spinlock);
3906                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3907                 return -EALREADY;
3908         }
3909         spin_unlock_bh(&priv->sta_list_spinlock);
3910
3911         chan = chandef->chan->hw_value;
3912         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3913         band = chandef->chan->band;
3914         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3915
3916         return 0;
3917 }
3918
3919 static void
3920 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3921                                          struct net_device *dev,
3922                                          const u8 *addr)
3923 {
3924         struct mwifiex_sta_node *sta_ptr;
3925         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3926
3927         spin_lock_bh(&priv->sta_list_spinlock);
3928         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3929         if (!sta_ptr) {
3930                 spin_unlock_bh(&priv->sta_list_spinlock);
3931                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3932                           __func__, addr);
3933         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3934                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3935                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3936                 spin_unlock_bh(&priv->sta_list_spinlock);
3937                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3938                           addr);
3939         } else {
3940                 spin_unlock_bh(&priv->sta_list_spinlock);
3941                 mwifiex_stop_tdls_cs(priv, addr);
3942         }
3943 }
3944
3945 static int
3946 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3947                              const u8 *mac, struct station_parameters *params)
3948 {
3949         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3950
3951         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3952                 return -EOPNOTSUPP;
3953
3954         /* make sure we are in station mode and connected */
3955         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3956                 return -EOPNOTSUPP;
3957
3958         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3959 }
3960
3961 static int
3962 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3963                                 struct cfg80211_csa_settings *params)
3964 {
3965         struct ieee_types_header *chsw_ie;
3966         struct ieee80211_channel_sw_ie *channel_sw;
3967         int chsw_msec;
3968         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3969
3970         if (priv->adapter->scan_processing) {
3971                 mwifiex_dbg(priv->adapter, ERROR,
3972                             "radar detection: scan in process...\n");
3973                 return -EBUSY;
3974         }
3975
3976         if (priv->wdev.cac_started)
3977                 return -EBUSY;
3978
3979         if (cfg80211_chandef_identical(&params->chandef,
3980                                        &priv->dfs_chandef))
3981                 return -EINVAL;
3982
3983         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3984                                            params->beacon_csa.tail,
3985                                            params->beacon_csa.tail_len);
3986         if (!chsw_ie) {
3987                 mwifiex_dbg(priv->adapter, ERROR,
3988                             "Could not parse channel switch announcement IE\n");
3989                 return -EINVAL;
3990         }
3991
3992         channel_sw = (void *)(chsw_ie + 1);
3993         if (channel_sw->mode) {
3994                 if (netif_carrier_ok(priv->netdev))
3995                         netif_carrier_off(priv->netdev);
3996                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3997         }
3998
3999         if (mwifiex_del_mgmt_ies(priv))
4000                 mwifiex_dbg(priv->adapter, ERROR,
4001                             "Failed to delete mgmt IEs!\n");
4002
4003         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
4004                 mwifiex_dbg(priv->adapter, ERROR,
4005                             "%s: setting mgmt ies failed\n", __func__);
4006                 return -EFAULT;
4007         }
4008
4009         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
4010         memcpy(&priv->beacon_after, &params->beacon_after,
4011                sizeof(priv->beacon_after));
4012
4013         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
4014         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
4015                            msecs_to_jiffies(chsw_msec));
4016         return 0;
4017 }
4018
4019 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
4020                                         struct wireless_dev *wdev,
4021                                         unsigned int link_id,
4022                                         struct cfg80211_chan_def *chandef)
4023 {
4024         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4025         struct mwifiex_bssdescriptor *curr_bss;
4026         struct ieee80211_channel *chan;
4027         enum nl80211_channel_type chan_type;
4028         enum nl80211_band band;
4029         int freq;
4030         int ret = -ENODATA;
4031
4032         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
4033             cfg80211_chandef_valid(&priv->bss_chandef)) {
4034                 *chandef = priv->bss_chandef;
4035                 ret = 0;
4036         } else if (priv->media_connected) {
4037                 curr_bss = &priv->curr_bss_params.bss_descriptor;
4038                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
4039                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
4040                 chan = ieee80211_get_channel(wiphy, freq);
4041
4042                 if (priv->ht_param_present) {
4043                         chan_type = mwifiex_get_chan_type(priv);
4044                         cfg80211_chandef_create(chandef, chan, chan_type);
4045                 } else {
4046                         cfg80211_chandef_create(chandef, chan,
4047                                                 NL80211_CHAN_NO_HT);
4048                 }
4049                 ret = 0;
4050         }
4051
4052         return ret;
4053 }
4054
4055 #ifdef CONFIG_NL80211_TESTMODE
4056
4057 enum mwifiex_tm_attr {
4058         __MWIFIEX_TM_ATTR_INVALID       = 0,
4059         MWIFIEX_TM_ATTR_CMD             = 1,
4060         MWIFIEX_TM_ATTR_DATA            = 2,
4061
4062         /* keep last */
4063         __MWIFIEX_TM_ATTR_AFTER_LAST,
4064         MWIFIEX_TM_ATTR_MAX             = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4065 };
4066
4067 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4068         [MWIFIEX_TM_ATTR_CMD]           = { .type = NLA_U32 },
4069         [MWIFIEX_TM_ATTR_DATA]          = { .type = NLA_BINARY,
4070                                             .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4071 };
4072
4073 enum mwifiex_tm_command {
4074         MWIFIEX_TM_CMD_HOSTCMD  = 0,
4075 };
4076
4077 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4078                           void *data, int len)
4079 {
4080         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4081         struct mwifiex_ds_misc_cmd *hostcmd;
4082         struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4083         struct sk_buff *skb;
4084         int err;
4085
4086         if (!priv)
4087                 return -EINVAL;
4088
4089         err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len,
4090                                    mwifiex_tm_policy, NULL);
4091         if (err)
4092                 return err;
4093
4094         if (!tb[MWIFIEX_TM_ATTR_CMD])
4095                 return -EINVAL;
4096
4097         switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4098         case MWIFIEX_TM_CMD_HOSTCMD:
4099                 if (!tb[MWIFIEX_TM_ATTR_DATA])
4100                         return -EINVAL;
4101
4102                 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4103                 if (!hostcmd)
4104                         return -ENOMEM;
4105
4106                 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4107                 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4108                        hostcmd->len);
4109
4110                 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4111                         dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4112                         kfree(hostcmd);
4113                         return -EFAULT;
4114                 }
4115
4116                 /* process hostcmd response*/
4117                 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4118                 if (!skb) {
4119                         kfree(hostcmd);
4120                         return -ENOMEM;
4121                 }
4122                 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4123                               hostcmd->len, hostcmd->cmd);
4124                 if (err) {
4125                         kfree(hostcmd);
4126                         kfree_skb(skb);
4127                         return -EMSGSIZE;
4128                 }
4129
4130                 err = cfg80211_testmode_reply(skb);
4131                 kfree(hostcmd);
4132                 return err;
4133         default:
4134                 return -EOPNOTSUPP;
4135         }
4136 }
4137 #endif
4138
4139 static int
4140 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4141                                        struct net_device *dev,
4142                                        struct cfg80211_chan_def *chandef,
4143                                        u32 cac_time_ms)
4144 {
4145         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4146         struct mwifiex_radar_params radar_params;
4147
4148         if (priv->adapter->scan_processing) {
4149                 mwifiex_dbg(priv->adapter, ERROR,
4150                             "radar detection: scan already in process...\n");
4151                 return -EBUSY;
4152         }
4153
4154         if (!mwifiex_is_11h_active(priv)) {
4155                 mwifiex_dbg(priv->adapter, INFO,
4156                             "Enable 11h extensions in FW\n");
4157                 if (mwifiex_11h_activate(priv, true)) {
4158                         mwifiex_dbg(priv->adapter, ERROR,
4159                                     "Failed to activate 11h extensions!!");
4160                         return -1;
4161                 }
4162                 priv->state_11h.is_11h_active = true;
4163         }
4164
4165         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4166         radar_params.chandef = chandef;
4167         radar_params.cac_time_ms = cac_time_ms;
4168
4169         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4170
4171         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4172                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4173                 return -1;
4174
4175         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4176                            msecs_to_jiffies(cac_time_ms));
4177         return 0;
4178 }
4179
4180 static int
4181 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4182                                 const u8 *mac,
4183                                 struct station_parameters *params)
4184 {
4185         int ret;
4186         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4187
4188         /* we support change_station handler only for TDLS peers*/
4189         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4190                 return -EOPNOTSUPP;
4191
4192         /* make sure we are in station mode and connected */
4193         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4194                 return -EOPNOTSUPP;
4195
4196         priv->sta_params = params;
4197
4198         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4199         priv->sta_params = NULL;
4200
4201         return ret;
4202 }
4203
4204 /* station cfg80211 operations */
4205 static struct cfg80211_ops mwifiex_cfg80211_ops = {
4206         .add_virtual_intf = mwifiex_add_virtual_intf,
4207         .del_virtual_intf = mwifiex_del_virtual_intf,
4208         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4209         .scan = mwifiex_cfg80211_scan,
4210         .connect = mwifiex_cfg80211_connect,
4211         .disconnect = mwifiex_cfg80211_disconnect,
4212         .get_station = mwifiex_cfg80211_get_station,
4213         .dump_station = mwifiex_cfg80211_dump_station,
4214         .dump_survey = mwifiex_cfg80211_dump_survey,
4215         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4216         .join_ibss = mwifiex_cfg80211_join_ibss,
4217         .leave_ibss = mwifiex_cfg80211_leave_ibss,
4218         .add_key = mwifiex_cfg80211_add_key,
4219         .del_key = mwifiex_cfg80211_del_key,
4220         .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4221         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4222         .update_mgmt_frame_registrations =
4223                 mwifiex_cfg80211_update_mgmt_frame_registrations,
4224         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4225         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4226         .set_default_key = mwifiex_cfg80211_set_default_key,
4227         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4228         .set_tx_power = mwifiex_cfg80211_set_tx_power,
4229         .get_tx_power = mwifiex_cfg80211_get_tx_power,
4230         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4231         .start_ap = mwifiex_cfg80211_start_ap,
4232         .stop_ap = mwifiex_cfg80211_stop_ap,
4233         .change_beacon = mwifiex_cfg80211_change_beacon,
4234         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4235         .set_antenna = mwifiex_cfg80211_set_antenna,
4236         .get_antenna = mwifiex_cfg80211_get_antenna,
4237         .del_station = mwifiex_cfg80211_del_station,
4238         .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4239         .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4240 #ifdef CONFIG_PM
4241         .suspend = mwifiex_cfg80211_suspend,
4242         .resume = mwifiex_cfg80211_resume,
4243         .set_wakeup = mwifiex_cfg80211_set_wakeup,
4244         .set_rekey_data = mwifiex_set_rekey_data,
4245 #endif
4246         .set_coalesce = mwifiex_cfg80211_set_coalesce,
4247         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4248         .tdls_oper = mwifiex_cfg80211_tdls_oper,
4249         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4250         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4251         .add_station = mwifiex_cfg80211_add_station,
4252         .change_station = mwifiex_cfg80211_change_station,
4253         CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4254         .get_channel = mwifiex_cfg80211_get_channel,
4255         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4256         .channel_switch = mwifiex_cfg80211_channel_switch,
4257 };
4258
4259 #ifdef CONFIG_PM
4260 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4261         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4262                 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4263                 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4264         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4265         .pattern_min_len = 1,
4266         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4267         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4268         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4269 };
4270
4271 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4272         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4273                  WIPHY_WOWLAN_NET_DETECT,
4274         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4275         .pattern_min_len = 1,
4276         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4277         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4278         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4279 };
4280 #endif
4281
4282 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4283 {
4284         if (!alpha2 || strlen(alpha2) != 2)
4285                 return false;
4286
4287         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4288                 return true;
4289
4290         return false;
4291 }
4292
4293 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4294         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4295         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4296         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4297         .pattern_min_len = 1,
4298         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4299         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4300 };
4301
4302 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4303 {
4304         u32 n_channels_bg, n_channels_a = 0;
4305
4306         n_channels_bg = mwifiex_band_2ghz.n_channels;
4307
4308         if (adapter->config_bands & BAND_A)
4309                 n_channels_a = mwifiex_band_5ghz.n_channels;
4310
4311         /* allocate twice the number total channels, since the driver issues an
4312          * additional active scan request for hidden SSIDs on passive channels.
4313          */
4314         adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4315         adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats),
4316                                                  adapter->num_in_chan_stats));
4317
4318         if (!adapter->chan_stats)
4319                 return -ENOMEM;
4320
4321         return 0;
4322 }
4323
4324 /*
4325  * This function registers the device with CFG802.11 subsystem.
4326  *
4327  * The function creates the wireless device/wiphy, populates it with
4328  * default parameters and handler function pointers, and finally
4329  * registers the device.
4330  */
4331
4332 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4333 {
4334         int ret;
4335         void *wdev_priv;
4336         struct wiphy *wiphy;
4337         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4338         u8 *country_code;
4339         u32 thr, retry;
4340
4341         /* create a new wiphy for use with cfg80211 */
4342         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4343                           sizeof(struct mwifiex_adapter *));
4344         if (!wiphy) {
4345                 mwifiex_dbg(adapter, ERROR,
4346                             "%s: creating new wiphy\n", __func__);
4347                 return -ENOMEM;
4348         }
4349         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4350         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4351         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4352         wiphy->max_remain_on_channel_duration = 5000;
4353         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4354                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
4355                                  BIT(NL80211_IFTYPE_P2P_GO) |
4356                                  BIT(NL80211_IFTYPE_AP);
4357
4358         if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4359                 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4360
4361         wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4362         if (adapter->config_bands & BAND_A)
4363                 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4364         else
4365                 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4366
4367         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4368                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4369         else if (adapter->is_hw_11ac_capable)
4370                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4371         else
4372                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4373         wiphy->n_iface_combinations = 1;
4374
4375         if (adapter->max_sta_conn > adapter->max_p2p_conn)
4376                 wiphy->max_ap_assoc_sta = adapter->max_sta_conn;
4377         else
4378                 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn;
4379
4380         /* Initialize cipher suits */
4381         wiphy->cipher_suites = mwifiex_cipher_suites;
4382         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4383
4384         if (adapter->regd) {
4385                 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4386                                            REGULATORY_DISABLE_BEACON_HINTS |
4387                                            REGULATORY_COUNTRY_IE_IGNORE;
4388                 wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4389         }
4390
4391         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4392         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4393         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4394                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4395                         WIPHY_FLAG_AP_UAPSD |
4396                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4397                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4398                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
4399
4400         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4401                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4402                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4403
4404 #ifdef CONFIG_PM
4405         if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4406                 wiphy->wowlan = &mwifiex_wowlan_support;
4407         else
4408                 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4409 #endif
4410
4411         wiphy->coalesce = &mwifiex_coalesce_support;
4412
4413         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4414                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4415                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4416
4417         wiphy->max_sched_scan_reqs = 1;
4418         wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4419         wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4420         wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4421
4422         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4423         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4424
4425         wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
4426                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
4427                            NL80211_FEATURE_NEED_OBSS_SCAN;
4428
4429         if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4430                 wiphy->features |= NL80211_FEATURE_HT_IBSS;
4431
4432         if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4433                 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4434                                    NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4435                                    NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4436
4437         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4438                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4439
4440         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4441                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4442
4443         /* Reserve space for mwifiex specific private data for BSS */
4444         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4445
4446         wiphy->reg_notifier = mwifiex_reg_notifier;
4447
4448         /* Set struct mwifiex_adapter pointer in wiphy_priv */
4449         wdev_priv = wiphy_priv(wiphy);
4450         *(unsigned long *)wdev_priv = (unsigned long)adapter;
4451
4452         set_wiphy_dev(wiphy, priv->adapter->dev);
4453
4454         ret = wiphy_register(wiphy);
4455         if (ret < 0) {
4456                 mwifiex_dbg(adapter, ERROR,
4457                             "%s: wiphy_register failed: %d\n", __func__, ret);
4458                 wiphy_free(wiphy);
4459                 return ret;
4460         }
4461
4462         if (!adapter->regd) {
4463                 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4464                         mwifiex_dbg(adapter, INFO,
4465                                     "driver hint alpha2: %2.2s\n", reg_alpha2);
4466                         regulatory_hint(wiphy, reg_alpha2);
4467                 } else {
4468                         if (adapter->region_code == 0x00) {
4469                                 mwifiex_dbg(adapter, WARN,
4470                                             "Ignore world regulatory domain\n");
4471                         } else {
4472                                 wiphy->regulatory_flags |=
4473                                         REGULATORY_DISABLE_BEACON_HINTS |
4474                                         REGULATORY_COUNTRY_IE_IGNORE;
4475                                 country_code =
4476                                         mwifiex_11d_code_2_region(
4477                                                 adapter->region_code);
4478                                 if (country_code &&
4479                                     regulatory_hint(wiphy, country_code))
4480                                         mwifiex_dbg(priv->adapter, ERROR,
4481                                                     "regulatory_hint() failed\n");
4482                         }
4483                 }
4484         }
4485
4486         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4487                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4488         wiphy->frag_threshold = thr;
4489         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4490                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4491         wiphy->rts_threshold = thr;
4492         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4493                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4494         wiphy->retry_short = (u8) retry;
4495         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4496                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4497         wiphy->retry_long = (u8) retry;
4498
4499         adapter->wiphy = wiphy;
4500         return ret;
4501 }