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

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22 #include "11n.h"
  23 #include "wmm.h"
  24
  25 static char *reg_alpha2;
  26 module_param(reg_alpha2, charp, 0);
  27
  28 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  29         {
  30                 .max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
  31                                    BIT(NL80211_IFTYPE_P2P_GO) |
  32                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
  33                                    BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination
  38 mwifiex_iface_comb_ap_sta = {
  39         .limits = mwifiex_ap_sta_limits,
  40         .num_different_channels = 1,
  41         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  42         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  43         .beacon_int_infra_match = true,
  44         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  45                                 BIT(NL80211_CHAN_WIDTH_20) |
  46                                 BIT(NL80211_CHAN_WIDTH_40),
  47 };
  48
  49 static const struct ieee80211_iface_combination
  50 mwifiex_iface_comb_ap_sta_vht = {
  51         .limits = mwifiex_ap_sta_limits,
  52         .num_different_channels = 1,
  53         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  54         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  55         .beacon_int_infra_match = true,
  56         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  57                                 BIT(NL80211_CHAN_WIDTH_20) |
  58                                 BIT(NL80211_CHAN_WIDTH_40) |
  59                                 BIT(NL80211_CHAN_WIDTH_80),
  60 };
  61
  62 static const struct
  63 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  64         .limits = mwifiex_ap_sta_limits,
  65         .num_different_channels = 2,
  66         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  67         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  68         .beacon_int_infra_match = true,
  69 };
  70
  71 /*
  72  * This function maps the nl802.11 channel type into driver channel type.
  73  *
  74  * The mapping is as follows -
  75  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  76  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  77  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  78  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  79  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80  */
  81 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  82 {
  83         switch (chan_type) {
  84         case NL80211_CHAN_NO_HT:
  85         case NL80211_CHAN_HT20:
  86                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  87         case NL80211_CHAN_HT40PLUS:
  88                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  89         case NL80211_CHAN_HT40MINUS:
  90                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  91         default:
  92                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  93         }
  94 }
  95
  96 /* This function maps IEEE HT secondary channel type to NL80211 channel type
  97  */
  98 u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
  99 {
 100         switch (second_chan_offset) {
 101         case IEEE80211_HT_PARAM_CHA_SEC_NONE:
 102                 return NL80211_CHAN_HT20;
 103         case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 104                 return NL80211_CHAN_HT40PLUS;
 105         case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
 106                 return NL80211_CHAN_HT40MINUS;
 107         default:
 108                 return NL80211_CHAN_HT20;
 109         }
 110 }
 111
 112 /*
 113  * This function checks whether WEP is set.
 114  */
 115 static int
 116 mwifiex_is_alg_wep(u32 cipher)
 117 {
 118         switch (cipher) {
 119         case WLAN_CIPHER_SUITE_WEP40:
 120         case WLAN_CIPHER_SUITE_WEP104:
 121                 return 1;
 122         default:
 123                 break;
 124         }
 125
 126         return 0;
 127 }
 128
 129 /*
 130  * This function retrieves the private structure from kernel wiphy structure.
 131  */
 132 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 133 {
 134         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 135 }
 136
 137 /*
 138  * CFG802.11 operation handler to delete a network key.
 139  */
 140 static int
 141 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 142                          u8 key_index, bool pairwise, const u8 *mac_addr)
 143 {
 144         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 145         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 146         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 147
 148         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 149                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 150                 return -EFAULT;
 151         }
 152
 153         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 154         return 0;
 155 }
 156
 157 /*
 158  * This function forms an skb for management frame.
 159  */
 160 static int
 161 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 162 {
 163         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 164         u16 pkt_len;
 165         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 166
 167         pkt_len = len + ETH_ALEN;
 168
 169         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 170                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 171         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 172
 173         memcpy(skb_push(skb, sizeof(tx_control)),
 174                &tx_control, sizeof(tx_control));
 175
 176         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 177
 178         /* Add packet data and address4 */
 179         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 180                sizeof(struct ieee80211_hdr_3addr));
 181         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 182         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 183                buf + sizeof(struct ieee80211_hdr_3addr),
 184                len - sizeof(struct ieee80211_hdr_3addr));
 185
 186         skb->priority = LOW_PRIO_TID;
 187         __net_timestamp(skb);
 188
 189         return 0;
 190 }
 191
 192 /*
 193  * CFG802.11 operation handler to transmit a management frame.
 194  */
 195 static int
 196 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 197                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 198 {
 199         const u8 *buf = params->buf;
 200         size_t len = params->len;
 201         struct sk_buff *skb;
 202         u16 pkt_len;
 203         const struct ieee80211_mgmt *mgmt;
 204         struct mwifiex_txinfo *tx_info;
 205         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 206
 207         if (!buf || !len) {
 208                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 209                 return -EFAULT;
 210         }
 211
 212         mgmt = (const struct ieee80211_mgmt *)buf;
 213         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 214             ieee80211_is_probe_resp(mgmt->frame_control)) {
 215                 /* Since we support offload probe resp, we need to skip probe
 216                  * resp in AP or GO mode */
 217                 mwifiex_dbg(priv->adapter, INFO,
 218                             "info: skip to send probe resp in AP or GO mode\n");
 219                 return 0;
 220         }
 221
 222         pkt_len = len + ETH_ALEN;
 223         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 224                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 225                             pkt_len + sizeof(pkt_len));
 226
 227         if (!skb) {
 228                 mwifiex_dbg(priv->adapter, ERROR,
 229                             "allocate skb failed for management frame\n");
 230                 return -ENOMEM;
 231         }
 232
 233         tx_info = MWIFIEX_SKB_TXCB(skb);
 234         memset(tx_info, 0, sizeof(*tx_info));
 235         tx_info->bss_num = priv->bss_num;
 236         tx_info->bss_type = priv->bss_type;
 237         tx_info->pkt_len = pkt_len;
 238
 239         mwifiex_form_mgmt_frame(skb, buf, len);
 240         *cookie = prandom_u32() | 1;
 241
 242         if (ieee80211_is_action(mgmt->frame_control))
 243                 skb = mwifiex_clone_skb_for_tx_status(priv,
 244                                                       skb,
 245                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 246         else
 247                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 248                                         GFP_ATOMIC);
 249
 250         mwifiex_queue_tx_pkt(priv, skb);
 251
 252         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 253         return 0;
 254 }
 255
 256 /*
 257  * CFG802.11 operation handler to register a mgmt frame.
 258  */
 259 static void
 260 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 261                                      struct wireless_dev *wdev,
 262                                      u16 frame_type, bool reg)
 263 {
 264         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 265         u32 mask;
 266
 267         if (reg)
 268                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 269         else
 270                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 271
 272         if (mask != priv->mgmt_frame_mask) {
 273                 priv->mgmt_frame_mask = mask;
 274                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 275                                  HostCmd_ACT_GEN_SET, 0,
 276                                  &priv->mgmt_frame_mask, false);
 277                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 278         }
 279 }
 280
 281 /*
 282  * CFG802.11 operation handler to remain on channel.
 283  */
 284 static int
 285 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 286                                    struct wireless_dev *wdev,
 287                                    struct ieee80211_channel *chan,
 288                                    unsigned int duration, u64 *cookie)
 289 {
 290         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 291         int ret;
 292
 293         if (!chan || !cookie) {
 294                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 295                 return -EINVAL;
 296         }
 297
 298         if (priv->roc_cfg.cookie) {
 299                 mwifiex_dbg(priv->adapter, INFO,
 300                             "info: ongoing ROC, cookie = 0x%llx\n",
 301                             priv->roc_cfg.cookie);
 302                 return -EBUSY;
 303         }
 304
 305         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 306                                          duration);
 307
 308         if (!ret) {
 309                 *cookie = prandom_u32() | 1;
 310                 priv->roc_cfg.cookie = *cookie;
 311                 priv->roc_cfg.chan = *chan;
 312
 313                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 314                                           duration, GFP_ATOMIC);
 315
 316                 mwifiex_dbg(priv->adapter, INFO,
 317                             "info: ROC, cookie = 0x%llx\n", *cookie);
 318         }
 319
 320         return ret;
 321 }
 322
 323 /*
 324  * CFG802.11 operation handler to cancel remain on channel.
 325  */
 326 static int
 327 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 328                                           struct wireless_dev *wdev, u64 cookie)
 329 {
 330         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 331         int ret;
 332
 333         if (cookie != priv->roc_cfg.cookie)
 334                 return -ENOENT;
 335
 336         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 337                                          &priv->roc_cfg.chan, 0);
 338
 339         if (!ret) {
 340                 cfg80211_remain_on_channel_expired(wdev, cookie,
 341                                                    &priv->roc_cfg.chan,
 342                                                    GFP_ATOMIC);
 343
 344                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 345
 346                 mwifiex_dbg(priv->adapter, INFO,
 347                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
 348         }
 349
 350         return ret;
 351 }
 352
 353 /*
 354  * CFG802.11 operation handler to set Tx power.
 355  */
 356 static int
 357 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 358                               struct wireless_dev *wdev,
 359                               enum nl80211_tx_power_setting type,
 360                               int mbm)
 361 {
 362         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 363         struct mwifiex_private *priv;
 364         struct mwifiex_power_cfg power_cfg;
 365         int dbm = MBM_TO_DBM(mbm);
 366
 367         if (type == NL80211_TX_POWER_FIXED) {
 368                 power_cfg.is_power_auto = 0;
 369                 power_cfg.power_level = dbm;
 370         } else {
 371                 power_cfg.is_power_auto = 1;
 372         }
 373
 374         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 375
 376         return mwifiex_set_tx_power(priv, &power_cfg);
 377 }
 378
 379 /*
 380  * CFG802.11 operation handler to get Tx power.
 381  */
 382 static int
 383 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 384                               struct wireless_dev *wdev,
 385                               int *dbm)
 386 {
 387         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 388         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 389                                                         MWIFIEX_BSS_ROLE_ANY);
 390         int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 391                                    HostCmd_ACT_GEN_GET, 0, NULL, true);
 392
 393         if (ret < 0)
 394                 return ret;
 395
 396         /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 397         *dbm = priv->tx_power_level;
 398
 399         return 0;
 400 }
 401
 402 /*
 403  * CFG802.11 operation handler to set Power Save option.
 404  *
 405  * The timeout value, if provided, is currently ignored.
 406  */
 407 static int
 408 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 409                                 struct net_device *dev,
 410                                 bool enabled, int timeout)
 411 {
 412         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 413         u32 ps_mode;
 414
 415         if (timeout)
 416                 mwifiex_dbg(priv->adapter, INFO,
 417                             "info: ignore timeout value for IEEE Power Save\n");
 418
 419         ps_mode = enabled;
 420
 421         return mwifiex_drv_set_power(priv, &ps_mode);
 422 }
 423
 424 /*
 425  * CFG802.11 operation handler to set the default network key.
 426  */
 427 static int
 428 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 429                                  u8 key_index, bool unicast,
 430                                  bool multicast)
 431 {
 432         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 433
 434         /* Return if WEP key not configured */
 435         if (!priv->sec_info.wep_enabled)
 436                 return 0;
 437
 438         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 439                 priv->wep_key_curr_index = key_index;
 440         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 441                                       NULL, 0)) {
 442                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 443                 return -EFAULT;
 444         }
 445
 446         return 0;
 447 }
 448
 449 /*
 450  * CFG802.11 operation handler to add a network key.
 451  */
 452 static int
 453 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 454                          u8 key_index, bool pairwise, const u8 *mac_addr,
 455                          struct key_params *params)
 456 {
 457         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 458         struct mwifiex_wep_key *wep_key;
 459         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 460         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 461
 462         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 463             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 464              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 465                 if (params->key && params->key_len) {
 466                         wep_key = &priv->wep_key[key_index];
 467                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 468                         memcpy(wep_key->key_material, params->key,
 469                                params->key_len);
 470                         wep_key->key_index = key_index;
 471                         wep_key->key_length = params->key_len;
 472                         priv->sec_info.wep_enabled = 1;
 473                 }
 474                 return 0;
 475         }
 476
 477         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 478                                key_index, peer_mac, 0)) {
 479                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 480                 return -EFAULT;
 481         }
 482
 483         return 0;
 484 }
 485
 486 /*
 487  * CFG802.11 operation handler to set default mgmt key.
 488  */
 489 static int
 490 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
 491                                       struct net_device *netdev,
 492                                       u8 key_index)
 493 {
 494         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 495         struct mwifiex_ds_encrypt_key encrypt_key;
 496
 497         wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
 498
 499         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 500         encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
 501         encrypt_key.key_index = key_index;
 502         encrypt_key.is_igtk_def_key = true;
 503         eth_broadcast_addr(encrypt_key.mac_addr);
 504
 505         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 506                                 HostCmd_ACT_GEN_SET, true, &encrypt_key, true);
 507 }
 508
 509 /*
 510  * This function sends domain information to the firmware.
 511  *
 512  * The following information are passed to the firmware -
 513  *      - Country codes
 514  *      - Sub bands (first channel, number of channels, maximum Tx power)
 515  */
 516 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 517 {
 518         u8 no_of_triplet = 0;
 519         struct ieee80211_country_ie_triplet *t;
 520         u8 no_of_parsed_chan = 0;
 521         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 522         u8 i, flag = 0;
 523         enum nl80211_band band;
 524         struct ieee80211_supported_band *sband;
 525         struct ieee80211_channel *ch;
 526         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 527         struct mwifiex_private *priv;
 528         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 529
 530         /* Set country code */
 531         domain_info->country_code[0] = adapter->country_code[0];
 532         domain_info->country_code[1] = adapter->country_code[1];
 533         domain_info->country_code[2] = ' ';
 534
 535         band = mwifiex_band_to_radio_type(adapter->config_bands);
 536         if (!wiphy->bands[band]) {
 537                 mwifiex_dbg(adapter, ERROR,
 538                             "11D: setting domain info in FW\n");
 539                 return -1;
 540         }
 541
 542         sband = wiphy->bands[band];
 543
 544         for (i = 0; i < sband->n_channels ; i++) {
 545                 ch = &sband->channels[i];
 546                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 547                         continue;
 548
 549                 if (!flag) {
 550                         flag = 1;
 551                         first_chan = (u32) ch->hw_value;
 552                         next_chan = first_chan;
 553                         max_pwr = ch->max_power;
 554                         no_of_parsed_chan = 1;
 555                         continue;
 556                 }
 557
 558                 if (ch->hw_value == next_chan + 1 &&
 559                     ch->max_power == max_pwr) {
 560                         next_chan++;
 561                         no_of_parsed_chan++;
 562                 } else {
 563                         t = &domain_info->triplet[no_of_triplet];
 564                         t->chans.first_channel = first_chan;
 565                         t->chans.num_channels = no_of_parsed_chan;
 566                         t->chans.max_power = max_pwr;
 567                         no_of_triplet++;
 568                         first_chan = (u32) ch->hw_value;
 569                         next_chan = first_chan;
 570                         max_pwr = ch->max_power;
 571                         no_of_parsed_chan = 1;
 572                 }
 573         }
 574
 575         if (flag) {
 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         }
 582
 583         domain_info->no_of_triplet = no_of_triplet;
 584
 585         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 586
 587         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 588                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 589                 mwifiex_dbg(adapter, INFO,
 590                             "11D: setting domain info in FW\n");
 591                 return -1;
 592         }
 593
 594         return 0;
 595 }
 596
 597 /*
 598  * CFG802.11 regulatory domain callback function.
 599  *
 600  * This function is called when the regulatory domain is changed due to the
 601  * following reasons -
 602  *      - Set by driver
 603  *      - Set by system core
 604  *      - Set by user
 605  *      - Set bt Country IE
 606  */
 607 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 608                                  struct regulatory_request *request)
 609 {
 610         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 611         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 612                                                         MWIFIEX_BSS_ROLE_ANY);
 613         mwifiex_dbg(adapter, INFO,
 614                     "info: cfg80211 regulatory domain callback for %c%c\n",
 615                     request->alpha2[0], request->alpha2[1]);
 616
 617         switch (request->initiator) {
 618         case NL80211_REGDOM_SET_BY_DRIVER:
 619         case NL80211_REGDOM_SET_BY_CORE:
 620         case NL80211_REGDOM_SET_BY_USER:
 621         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 622                 break;
 623         default:
 624                 mwifiex_dbg(adapter, ERROR,
 625                             "unknown regdom initiator: %d\n",
 626                             request->initiator);
 627                 return;
 628         }
 629
 630         /* Don't send world or same regdom info to firmware */
 631         if (strncmp(request->alpha2, "00", 2) &&
 632             strncmp(request->alpha2, adapter->country_code,
 633                     sizeof(request->alpha2))) {
 634                 memcpy(adapter->country_code, request->alpha2,
 635                        sizeof(request->alpha2));
 636                 mwifiex_send_domain_info_cmd_fw(wiphy);
 637                 mwifiex_dnld_txpwr_table(priv);
 638         }
 639 }
 640
 641 /*
 642  * This function sets the fragmentation threshold.
 643  *
 644  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 645  * and MWIFIEX_FRAG_MAX_VALUE.
 646  */
 647 static int
 648 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 649 {
 650         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 651             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 652                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 653
 654         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 655                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 656                                 &frag_thr, true);
 657 }
 658
 659 /*
 660  * This function sets the RTS threshold.
 661
 662  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 663  * and MWIFIEX_RTS_MAX_VALUE.
 664  */
 665 static int
 666 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 667 {
 668         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 669                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 670
 671         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 672                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 673                                 &rts_thr, true);
 674 }
 675
 676 /*
 677  * CFG802.11 operation handler to set wiphy parameters.
 678  *
 679  * This function can be used to set the RTS threshold and the
 680  * Fragmentation threshold of the driver.
 681  */
 682 static int
 683 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 684 {
 685         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 686         struct mwifiex_private *priv;
 687         struct mwifiex_uap_bss_param *bss_cfg;
 688         int ret;
 689
 690         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 691
 692         switch (priv->bss_role) {
 693         case MWIFIEX_BSS_ROLE_UAP:
 694                 if (priv->bss_started) {
 695                         mwifiex_dbg(adapter, ERROR,
 696                                     "cannot change wiphy params when bss started");
 697                         return -EINVAL;
 698                 }
 699
 700                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 701                 if (!bss_cfg)
 702                         return -ENOMEM;
 703
 704                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 705
 706                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 707                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 708                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 709                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 710                 if (changed & WIPHY_PARAM_RETRY_LONG)
 711                         bss_cfg->retry_limit = wiphy->retry_long;
 712
 713                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 714                                        HostCmd_ACT_GEN_SET,
 715                                        UAP_BSS_PARAMS_I, bss_cfg,
 716                                        false);
 717
 718                 kfree(bss_cfg);
 719                 if (ret) {
 720                         mwifiex_dbg(adapter, ERROR,
 721                                     "Failed to set wiphy phy params\n");
 722                         return ret;
 723                 }
 724                 break;
 725
 726         case MWIFIEX_BSS_ROLE_STA:
 727                 if (priv->media_connected) {
 728                         mwifiex_dbg(adapter, ERROR,
 729                                     "cannot change wiphy params when connected");
 730                         return -EINVAL;
 731                 }
 732                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 733                         ret = mwifiex_set_rts(priv,
 734                                               wiphy->rts_threshold);
 735                         if (ret)
 736                                 return ret;
 737                 }
 738                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 739                         ret = mwifiex_set_frag(priv,
 740                                                wiphy->frag_threshold);
 741                         if (ret)
 742                                 return ret;
 743                 }
 744                 break;
 745         }
 746
 747         return 0;
 748 }
 749
 750 static int
 751 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 752 {
 753         u16 mode = P2P_MODE_DISABLE;
 754
 755         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 756                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 757                 return -1;
 758
 759         return 0;
 760 }
 761
 762 /*
 763  * This function initializes the functionalities for P2P client.
 764  * The P2P client initialization sequence is:
 765  * disable -> device -> client
 766  */
 767 static int
 768 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 769 {
 770         u16 mode;
 771
 772         if (mwifiex_cfg80211_deinit_p2p(priv))
 773                 return -1;
 774
 775         mode = P2P_MODE_DEVICE;
 776         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 777                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 778                 return -1;
 779
 780         mode = P2P_MODE_CLIENT;
 781         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 782                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 783                 return -1;
 784
 785         return 0;
 786 }
 787
 788 /*
 789  * This function initializes the functionalities for P2P GO.
 790  * The P2P GO initialization sequence is:
 791  * disable -> device -> GO
 792  */
 793 static int
 794 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 795 {
 796         u16 mode;
 797
 798         if (mwifiex_cfg80211_deinit_p2p(priv))
 799                 return -1;
 800
 801         mode = P2P_MODE_DEVICE;
 802         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 803                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 804                 return -1;
 805
 806         mode = P2P_MODE_GO;
 807         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 808                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 809                 return -1;
 810
 811         return 0;
 812 }
 813
 814 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 815 {
 816         struct mwifiex_adapter *adapter = priv->adapter;
 817         unsigned long flags;
 818
 819         priv->mgmt_frame_mask = 0;
 820         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 821                              HostCmd_ACT_GEN_SET, 0,
 822                              &priv->mgmt_frame_mask, false)) {
 823                 mwifiex_dbg(adapter, ERROR,
 824                             "could not unregister mgmt frame rx\n");
 825                 return -1;
 826         }
 827
 828         mwifiex_deauthenticate(priv, NULL);
 829
 830         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 831         adapter->main_locked = true;
 832         if (adapter->mwifiex_processing) {
 833                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 834                 flush_workqueue(adapter->workqueue);
 835         } else {
 836                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 837         }
 838
 839         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 840         adapter->rx_locked = true;
 841         if (adapter->rx_processing) {
 842                 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 843                 flush_workqueue(adapter->rx_workqueue);
 844         } else {
 845         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 846         }
 847
 848         mwifiex_free_priv(priv);
 849         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 850         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 851         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 852
 853         return 0;
 854 }
 855
 856 static int
 857 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 858                              struct net_device *dev,
 859                              enum nl80211_iftype type)
 860 {
 861         struct mwifiex_adapter *adapter = priv->adapter;
 862         unsigned long flags;
 863
 864         mwifiex_init_priv(priv);
 865
 866         priv->bss_mode = type;
 867         priv->wdev.iftype = type;
 868
 869         mwifiex_init_priv_params(priv, priv->netdev);
 870         priv->bss_started = 0;
 871
 872         switch (type) {
 873         case NL80211_IFTYPE_STATION:
 874         case NL80211_IFTYPE_ADHOC:
 875                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 876                          MWIFIEX_BSS_TYPE_STA);
 877                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 878                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 879                 break;
 880         case NL80211_IFTYPE_P2P_CLIENT:
 881                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 882                          MWIFIEX_BSS_TYPE_P2P);
 883                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 884                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 885                 break;
 886         case NL80211_IFTYPE_P2P_GO:
 887                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 888                          MWIFIEX_BSS_TYPE_P2P);
 889                 priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 890                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 891                 break;
 892         case NL80211_IFTYPE_AP:
 893                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 894                          MWIFIEX_BSS_TYPE_UAP);
 895                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 896                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 897                 break;
 898         default:
 899                 mwifiex_dbg(adapter, ERROR,
 900                             "%s: changing to %d not supported\n",
 901                             dev->name, type);
 902                 return -EOPNOTSUPP;
 903         }
 904
 905         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 906         adapter->main_locked = false;
 907         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 908
 909         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 910         adapter->rx_locked = false;
 911         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 912
 913         return 0;
 914 }
 915
 916 static int
 917 mwifiex_change_vif_to_p2p(struct net_device *dev,
 918                           enum nl80211_iftype curr_iftype,
 919                           enum nl80211_iftype type, u32 *flags,
 920                           struct vif_params *params)
 921 {
 922         struct mwifiex_private *priv;
 923         struct mwifiex_adapter *adapter;
 924
 925         priv = mwifiex_netdev_get_priv(dev);
 926
 927         if (!priv)
 928                 return -1;
 929
 930         adapter = priv->adapter;
 931
 932         if (adapter->curr_iface_comb.p2p_intf ==
 933             adapter->iface_limit.p2p_intf) {
 934                 mwifiex_dbg(adapter, ERROR,
 935                             "cannot create multiple P2P ifaces\n");
 936                 return -1;
 937         }
 938
 939         mwifiex_dbg(adapter, INFO,
 940                     "%s: changing role to p2p\n", dev->name);
 941
 942         if (mwifiex_deinit_priv_params(priv))
 943                 return -1;
 944         if (mwifiex_init_new_priv_params(priv, dev, type))
 945                 return -1;
 946
 947         switch (type) {
 948         case NL80211_IFTYPE_P2P_CLIENT:
 949                 if (mwifiex_cfg80211_init_p2p_client(priv))
 950                         return -EFAULT;
 951                 break;
 952         case NL80211_IFTYPE_P2P_GO:
 953                 if (mwifiex_cfg80211_init_p2p_go(priv))
 954                         return -EFAULT;
 955                 break;
 956         default:
 957                 mwifiex_dbg(adapter, ERROR,
 958                             "%s: changing to %d not supported\n",
 959                             dev->name, type);
 960                 return -EOPNOTSUPP;
 961         }
 962
 963         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 964                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 965                 return -1;
 966
 967         if (mwifiex_sta_init_cmd(priv, false, false))
 968                 return -1;
 969
 970         switch (curr_iftype) {
 971         case NL80211_IFTYPE_STATION:
 972         case NL80211_IFTYPE_ADHOC:
 973                 adapter->curr_iface_comb.sta_intf--;
 974                 break;
 975         case NL80211_IFTYPE_AP:
 976                 adapter->curr_iface_comb.uap_intf--;
 977                 break;
 978         default:
 979                 break;
 980         }
 981
 982         adapter->curr_iface_comb.p2p_intf++;
 983         dev->ieee80211_ptr->iftype = type;
 984
 985         return 0;
 986 }
 987
 988 static int
 989 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
 990                                 enum nl80211_iftype curr_iftype,
 991                                 enum nl80211_iftype type, u32 *flags,
 992                                 struct vif_params *params)
 993 {
 994         struct mwifiex_private *priv;
 995         struct mwifiex_adapter *adapter;
 996
 997         priv = mwifiex_netdev_get_priv(dev);
 998
 999         if (!priv)
1000                 return -1;
1001
1002         adapter = priv->adapter;
1003
1004         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
1005              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
1006             (adapter->curr_iface_comb.sta_intf ==
1007              adapter->iface_limit.sta_intf)) {
1008                 mwifiex_dbg(adapter, ERROR,
1009                             "cannot create multiple station/adhoc ifaces\n");
1010                 return -1;
1011         }
1012
1013         if (type == NL80211_IFTYPE_STATION)
1014                 mwifiex_dbg(adapter, INFO,
1015                             "%s: changing role to station\n", dev->name);
1016         else
1017                 mwifiex_dbg(adapter, INFO,
1018                             "%s: changing role to adhoc\n", dev->name);
1019
1020         if (mwifiex_deinit_priv_params(priv))
1021                 return -1;
1022         if (mwifiex_init_new_priv_params(priv, dev, type))
1023                 return -1;
1024         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1025                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1026                 return -1;
1027         if (mwifiex_sta_init_cmd(priv, false, false))
1028                 return -1;
1029
1030         switch (curr_iftype) {
1031         case NL80211_IFTYPE_P2P_CLIENT:
1032         case NL80211_IFTYPE_P2P_GO:
1033                 adapter->curr_iface_comb.p2p_intf--;
1034                 break;
1035         case NL80211_IFTYPE_AP:
1036                 adapter->curr_iface_comb.uap_intf--;
1037                 break;
1038         default:
1039                 break;
1040         }
1041
1042         adapter->curr_iface_comb.sta_intf++;
1043         dev->ieee80211_ptr->iftype = type;
1044         return 0;
1045 }
1046
1047 static int
1048 mwifiex_change_vif_to_ap(struct net_device *dev,
1049                          enum nl80211_iftype curr_iftype,
1050                          enum nl80211_iftype type, u32 *flags,
1051                          struct vif_params *params)
1052 {
1053         struct mwifiex_private *priv;
1054         struct mwifiex_adapter *adapter;
1055
1056         priv = mwifiex_netdev_get_priv(dev);
1057
1058         if (!priv)
1059                 return -1;
1060
1061         adapter = priv->adapter;
1062
1063         if (adapter->curr_iface_comb.uap_intf ==
1064             adapter->iface_limit.uap_intf) {
1065                 mwifiex_dbg(adapter, ERROR,
1066                             "cannot create multiple AP ifaces\n");
1067                 return -1;
1068         }
1069
1070         mwifiex_dbg(adapter, INFO,
1071                     "%s: changing role to AP\n", dev->name);
1072
1073         if (mwifiex_deinit_priv_params(priv))
1074                 return -1;
1075         if (mwifiex_init_new_priv_params(priv, dev, type))
1076                 return -1;
1077         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1078                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1079                 return -1;
1080         if (mwifiex_sta_init_cmd(priv, false, false))
1081                 return -1;
1082
1083         switch (curr_iftype) {
1084         case NL80211_IFTYPE_P2P_CLIENT:
1085         case NL80211_IFTYPE_P2P_GO:
1086                 adapter->curr_iface_comb.p2p_intf--;
1087                 break;
1088         case NL80211_IFTYPE_STATION:
1089         case NL80211_IFTYPE_ADHOC:
1090                 adapter->curr_iface_comb.sta_intf--;
1091                 break;
1092         default:
1093                 break;
1094         }
1095
1096         adapter->curr_iface_comb.uap_intf++;
1097         dev->ieee80211_ptr->iftype = type;
1098         return 0;
1099 }
1100 /*
1101  * CFG802.11 operation handler to change interface type.
1102  */
1103 static int
1104 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1105                                      struct net_device *dev,
1106                                      enum nl80211_iftype type, u32 *flags,
1107                                      struct vif_params *params)
1108 {
1109         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1110         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1111
1112         switch (curr_iftype) {
1113         case NL80211_IFTYPE_ADHOC:
1114                 switch (type) {
1115                 case NL80211_IFTYPE_STATION:
1116                         priv->bss_mode = type;
1117                         priv->sec_info.authentication_mode =
1118                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1119                         dev->ieee80211_ptr->iftype = type;
1120                         mwifiex_deauthenticate(priv, NULL);
1121                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1122                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1123                                                 true);
1124                 case NL80211_IFTYPE_P2P_CLIENT:
1125                 case NL80211_IFTYPE_P2P_GO:
1126                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1127                                                          type, flags, params);
1128                 case NL80211_IFTYPE_AP:
1129                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1130                                                         flags, params);
1131                 case NL80211_IFTYPE_UNSPECIFIED:
1132                         mwifiex_dbg(priv->adapter, INFO,
1133                                     "%s: kept type as IBSS\n", dev->name);
1134                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1135                         return 0;
1136                 default:
1137                         mwifiex_dbg(priv->adapter, ERROR,
1138                                     "%s: changing to %d not supported\n",
1139                                     dev->name, type);
1140                         return -EOPNOTSUPP;
1141                 }
1142                 break;
1143         case NL80211_IFTYPE_STATION:
1144                 switch (type) {
1145                 case NL80211_IFTYPE_ADHOC:
1146                         priv->bss_mode = type;
1147                         priv->sec_info.authentication_mode =
1148                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1149                         dev->ieee80211_ptr->iftype = type;
1150                         mwifiex_deauthenticate(priv, NULL);
1151                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1152                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1153                                                 true);
1154                 case NL80211_IFTYPE_P2P_CLIENT:
1155                 case NL80211_IFTYPE_P2P_GO:
1156                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1157                                                          type, flags, params);
1158                 case NL80211_IFTYPE_AP:
1159                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1160                                                         flags, params);
1161                 case NL80211_IFTYPE_UNSPECIFIED:
1162                         mwifiex_dbg(priv->adapter, INFO,
1163                                     "%s: kept type as STA\n", dev->name);
1164                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1165                         return 0;
1166                 default:
1167                         mwifiex_dbg(priv->adapter, ERROR,
1168                                     "%s: changing to %d not supported\n",
1169                                     dev->name, type);
1170                         return -EOPNOTSUPP;
1171                 }
1172                 break;
1173         case NL80211_IFTYPE_AP:
1174                 switch (type) {
1175                 case NL80211_IFTYPE_ADHOC:
1176                 case NL80211_IFTYPE_STATION:
1177                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1178                                                                type, flags,
1179                                                                params);
1180                         break;
1181                 case NL80211_IFTYPE_P2P_CLIENT:
1182                 case NL80211_IFTYPE_P2P_GO:
1183                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1184                                                          type, flags, params);
1185                 case NL80211_IFTYPE_UNSPECIFIED:
1186                         mwifiex_dbg(priv->adapter, INFO,
1187                                     "%s: kept type as AP\n", dev->name);
1188                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1189                         return 0;
1190                 default:
1191                         mwifiex_dbg(priv->adapter, ERROR,
1192                                     "%s: changing to %d not supported\n",
1193                                     dev->name, type);
1194                         return -EOPNOTSUPP;
1195                 }
1196                 break;
1197         case NL80211_IFTYPE_P2P_CLIENT:
1198         case NL80211_IFTYPE_P2P_GO:
1199                 switch (type) {
1200                 case NL80211_IFTYPE_STATION:
1201                         if (mwifiex_cfg80211_deinit_p2p(priv))
1202                                 return -EFAULT;
1203                         priv->adapter->curr_iface_comb.p2p_intf--;
1204                         priv->adapter->curr_iface_comb.sta_intf++;
1205                         dev->ieee80211_ptr->iftype = type;
1206                         if (mwifiex_deinit_priv_params(priv))
1207                                 return -1;
1208                         if (mwifiex_init_new_priv_params(priv, dev, type))
1209                                 return -1;
1210                         if (mwifiex_sta_init_cmd(priv, false, false))
1211                                 return -1;
1212                         break;
1213                 case NL80211_IFTYPE_ADHOC:
1214                         if (mwifiex_cfg80211_deinit_p2p(priv))
1215                                 return -EFAULT;
1216                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1217                                                                type, flags,
1218                                                                params);
1219                         break;
1220                 case NL80211_IFTYPE_AP:
1221                         if (mwifiex_cfg80211_deinit_p2p(priv))
1222                                 return -EFAULT;
1223                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1224                                                         flags, params);
1225                 case NL80211_IFTYPE_UNSPECIFIED:
1226                         mwifiex_dbg(priv->adapter, INFO,
1227                                     "%s: kept type as P2P\n", dev->name);
1228                 case NL80211_IFTYPE_P2P_CLIENT:
1229                 case NL80211_IFTYPE_P2P_GO:
1230                         return 0;
1231                 default:
1232                         mwifiex_dbg(priv->adapter, ERROR,
1233                                     "%s: changing to %d not supported\n",
1234                                     dev->name, type);
1235                         return -EOPNOTSUPP;
1236                 }
1237                 break;
1238         default:
1239                 mwifiex_dbg(priv->adapter, ERROR,
1240                             "%s: unknown iftype: %d\n",
1241                             dev->name, dev->ieee80211_ptr->iftype);
1242                 return -EOPNOTSUPP;
1243         }
1244
1245
1246         return 0;
1247 }
1248
1249 static void
1250 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1251                      struct rate_info *rate)
1252 {
1253         struct mwifiex_adapter *adapter = priv->adapter;
1254
1255         if (adapter->is_hw_11ac_capable) {
1256                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1257                 if (tx_htinfo & BIT(0)) {
1258                         /* HT */
1259                         rate->mcs = priv->tx_rate;
1260                         rate->flags |= RATE_INFO_FLAGS_MCS;
1261                 }
1262                 if (tx_htinfo & BIT(1)) {
1263                         /* VHT */
1264                         rate->mcs = priv->tx_rate & 0x0F;
1265                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1266                 }
1267
1268                 if (tx_htinfo & (BIT(1) | BIT(0))) {
1269                         /* HT or VHT */
1270                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
1271                         case 0:
1272                                 rate->bw = RATE_INFO_BW_20;
1273                                 break;
1274                         case (BIT(2)):
1275                                 rate->bw = RATE_INFO_BW_40;
1276                                 break;
1277                         case (BIT(3)):
1278                                 rate->bw = RATE_INFO_BW_80;
1279                                 break;
1280                         case (BIT(3) | BIT(2)):
1281                                 rate->bw = RATE_INFO_BW_160;
1282                                 break;
1283                         }
1284
1285                         if (tx_htinfo & BIT(4))
1286                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1287
1288                         if ((priv->tx_rate >> 4) == 1)
1289                                 rate->nss = 2;
1290                         else
1291                                 rate->nss = 1;
1292                 }
1293         } else {
1294                 /*
1295                  * Bit 0 in tx_htinfo indicates that current Tx rate
1296                  * is 11n rate. Valid MCS index values for us are 0 to 15.
1297                  */
1298                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1299                         rate->mcs = priv->tx_rate;
1300                         rate->flags |= RATE_INFO_FLAGS_MCS;
1301                         rate->bw = RATE_INFO_BW_20;
1302                         if (tx_htinfo & BIT(1))
1303                                 rate->bw = RATE_INFO_BW_40;
1304                         if (tx_htinfo & BIT(2))
1305                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1306                 }
1307         }
1308 }
1309
1310 /*
1311  * This function dumps the station information on a buffer.
1312  *
1313  * The following information are shown -
1314  *      - Total bytes transmitted
1315  *      - Total bytes received
1316  *      - Total packets transmitted
1317  *      - Total packets received
1318  *      - Signal quality level
1319  *      - Transmission rate
1320  */
1321 static int
1322 mwifiex_dump_station_info(struct mwifiex_private *priv,
1323                           struct mwifiex_sta_node *node,
1324                           struct station_info *sinfo)
1325 {
1326         u32 rate;
1327
1328         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1329                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1330                         BIT(NL80211_STA_INFO_TX_BITRATE) |
1331                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1332
1333         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1334                 if (!node)
1335                         return -ENOENT;
1336
1337                 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1338                                 BIT(NL80211_STA_INFO_TX_FAILED);
1339                 sinfo->inactive_time =
1340                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1341
1342                 sinfo->signal = node->stats.rssi;
1343                 sinfo->signal_avg = node->stats.rssi;
1344                 sinfo->rx_bytes = node->stats.rx_bytes;
1345                 sinfo->tx_bytes = node->stats.tx_bytes;
1346                 sinfo->rx_packets = node->stats.rx_packets;
1347                 sinfo->tx_packets = node->stats.tx_packets;
1348                 sinfo->tx_failed = node->stats.tx_failed;
1349
1350                 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1351                                      &sinfo->txrate);
1352                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1353
1354                 return 0;
1355         }
1356
1357         /* Get signal information from the firmware */
1358         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1359                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1360                 mwifiex_dbg(priv->adapter, ERROR,
1361                             "failed to get signal information\n");
1362                 return -EFAULT;
1363         }
1364
1365         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1366                 mwifiex_dbg(priv->adapter, ERROR,
1367                             "getting data rate error\n");
1368                 return -EFAULT;
1369         }
1370
1371         /* Get DTIM period information from firmware */
1372         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1373                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1374                          &priv->dtim_period, true);
1375
1376         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1377
1378         sinfo->signal_avg = priv->bcn_rssi_avg;
1379         sinfo->rx_bytes = priv->stats.rx_bytes;
1380         sinfo->tx_bytes = priv->stats.tx_bytes;
1381         sinfo->rx_packets = priv->stats.rx_packets;
1382         sinfo->tx_packets = priv->stats.tx_packets;
1383         sinfo->signal = priv->bcn_rssi_avg;
1384         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1385         sinfo->txrate.legacy = rate * 5;
1386
1387         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1388                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1389                 sinfo->bss_param.flags = 0;
1390                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1391                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1392                         sinfo->bss_param.flags |=
1393                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1394                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1395                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1396                         sinfo->bss_param.flags |=
1397                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1398                 sinfo->bss_param.dtim_period = priv->dtim_period;
1399                 sinfo->bss_param.beacon_interval =
1400                         priv->curr_bss_params.bss_descriptor.beacon_period;
1401         }
1402
1403         return 0;
1404 }
1405
1406 /*
1407  * CFG802.11 operation handler to get station information.
1408  *
1409  * This function only works in connected mode, and dumps the
1410  * requested station information, if available.
1411  */
1412 static int
1413 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1414                              const u8 *mac, struct station_info *sinfo)
1415 {
1416         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1417
1418         if (!priv->media_connected)
1419                 return -ENOENT;
1420         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1421                 return -ENOENT;
1422
1423         return mwifiex_dump_station_info(priv, NULL, sinfo);
1424 }
1425
1426 /*
1427  * CFG802.11 operation handler to dump station information.
1428  */
1429 static int
1430 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1431                               int idx, u8 *mac, struct station_info *sinfo)
1432 {
1433         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1434         static struct mwifiex_sta_node *node;
1435
1436         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1437             priv->media_connected && idx == 0) {
1438                 ether_addr_copy(mac, priv->cfg_bssid);
1439                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1440         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1441                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1442                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1443
1444                 if (node && (&node->list == &priv->sta_list)) {
1445                         node = NULL;
1446                         return -ENOENT;
1447                 }
1448
1449                 node = list_prepare_entry(node, &priv->sta_list, list);
1450                 list_for_each_entry_continue(node, &priv->sta_list, list) {
1451                         ether_addr_copy(mac, node->mac_addr);
1452                         return mwifiex_dump_station_info(priv, node, sinfo);
1453                 }
1454         }
1455
1456         return -ENOENT;
1457 }
1458
1459 static int
1460 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1461                              int idx, struct survey_info *survey)
1462 {
1463         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1464         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1465         enum nl80211_band band;
1466
1467         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1468
1469         memset(survey, 0, sizeof(struct survey_info));
1470
1471         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1472             priv->media_connected && idx == 0) {
1473                         u8 curr_bss_band = priv->curr_bss_params.band;
1474                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1475
1476                         band = mwifiex_band_to_radio_type(curr_bss_band);
1477                         survey->channel = ieee80211_get_channel(wiphy,
1478                                 ieee80211_channel_to_frequency(chan, band));
1479
1480                         if (priv->bcn_nf_last) {
1481                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1482                                 survey->noise = priv->bcn_nf_last;
1483                         }
1484                         return 0;
1485         }
1486
1487         if (idx >= priv->adapter->num_in_chan_stats)
1488                 return -ENOENT;
1489
1490         if (!pchan_stats[idx].cca_scan_dur)
1491                 return 0;
1492
1493         band = pchan_stats[idx].bandcfg;
1494         survey->channel = ieee80211_get_channel(wiphy,
1495             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1496         survey->filled = SURVEY_INFO_NOISE_DBM |
1497                          SURVEY_INFO_TIME |
1498                          SURVEY_INFO_TIME_BUSY;
1499         survey->noise = pchan_stats[idx].noise;
1500         survey->time = pchan_stats[idx].cca_scan_dur;
1501         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1502
1503         return 0;
1504 }
1505
1506 /* Supported rates to be advertised to the cfg80211 */
1507 static struct ieee80211_rate mwifiex_rates[] = {
1508         {.bitrate = 10, .hw_value = 2, },
1509         {.bitrate = 20, .hw_value = 4, },
1510         {.bitrate = 55, .hw_value = 11, },
1511         {.bitrate = 110, .hw_value = 22, },
1512         {.bitrate = 60, .hw_value = 12, },
1513         {.bitrate = 90, .hw_value = 18, },
1514         {.bitrate = 120, .hw_value = 24, },
1515         {.bitrate = 180, .hw_value = 36, },
1516         {.bitrate = 240, .hw_value = 48, },
1517         {.bitrate = 360, .hw_value = 72, },
1518         {.bitrate = 480, .hw_value = 96, },
1519         {.bitrate = 540, .hw_value = 108, },
1520 };
1521
1522 /* Channel definitions to be advertised to cfg80211 */
1523 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1524         {.center_freq = 2412, .hw_value = 1, },
1525         {.center_freq = 2417, .hw_value = 2, },
1526         {.center_freq = 2422, .hw_value = 3, },
1527         {.center_freq = 2427, .hw_value = 4, },
1528         {.center_freq = 2432, .hw_value = 5, },
1529         {.center_freq = 2437, .hw_value = 6, },
1530         {.center_freq = 2442, .hw_value = 7, },
1531         {.center_freq = 2447, .hw_value = 8, },
1532         {.center_freq = 2452, .hw_value = 9, },
1533         {.center_freq = 2457, .hw_value = 10, },
1534         {.center_freq = 2462, .hw_value = 11, },
1535         {.center_freq = 2467, .hw_value = 12, },
1536         {.center_freq = 2472, .hw_value = 13, },
1537         {.center_freq = 2484, .hw_value = 14, },
1538 };
1539
1540 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1541         .channels = mwifiex_channels_2ghz,
1542         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1543         .bitrates = mwifiex_rates,
1544         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1545 };
1546
1547 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1548         {.center_freq = 5040, .hw_value = 8, },
1549         {.center_freq = 5060, .hw_value = 12, },
1550         {.center_freq = 5080, .hw_value = 16, },
1551         {.center_freq = 5170, .hw_value = 34, },
1552         {.center_freq = 5190, .hw_value = 38, },
1553         {.center_freq = 5210, .hw_value = 42, },
1554         {.center_freq = 5230, .hw_value = 46, },
1555         {.center_freq = 5180, .hw_value = 36, },
1556         {.center_freq = 5200, .hw_value = 40, },
1557         {.center_freq = 5220, .hw_value = 44, },
1558         {.center_freq = 5240, .hw_value = 48, },
1559         {.center_freq = 5260, .hw_value = 52, },
1560         {.center_freq = 5280, .hw_value = 56, },
1561         {.center_freq = 5300, .hw_value = 60, },
1562         {.center_freq = 5320, .hw_value = 64, },
1563         {.center_freq = 5500, .hw_value = 100, },
1564         {.center_freq = 5520, .hw_value = 104, },
1565         {.center_freq = 5540, .hw_value = 108, },
1566         {.center_freq = 5560, .hw_value = 112, },
1567         {.center_freq = 5580, .hw_value = 116, },
1568         {.center_freq = 5600, .hw_value = 120, },
1569         {.center_freq = 5620, .hw_value = 124, },
1570         {.center_freq = 5640, .hw_value = 128, },
1571         {.center_freq = 5660, .hw_value = 132, },
1572         {.center_freq = 5680, .hw_value = 136, },
1573         {.center_freq = 5700, .hw_value = 140, },
1574         {.center_freq = 5745, .hw_value = 149, },
1575         {.center_freq = 5765, .hw_value = 153, },
1576         {.center_freq = 5785, .hw_value = 157, },
1577         {.center_freq = 5805, .hw_value = 161, },
1578         {.center_freq = 5825, .hw_value = 165, },
1579 };
1580
1581 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1582         .channels = mwifiex_channels_5ghz,
1583         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1584         .bitrates = mwifiex_rates + 4,
1585         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1586 };
1587
1588
1589 /* Supported crypto cipher suits to be advertised to cfg80211 */
1590 static const u32 mwifiex_cipher_suites[] = {
1591         WLAN_CIPHER_SUITE_WEP40,
1592         WLAN_CIPHER_SUITE_WEP104,
1593         WLAN_CIPHER_SUITE_TKIP,
1594         WLAN_CIPHER_SUITE_CCMP,
1595         WLAN_CIPHER_SUITE_SMS4,
1596         WLAN_CIPHER_SUITE_AES_CMAC,
1597 };
1598
1599 /* Supported mgmt frame types to be advertised to cfg80211 */
1600 static const struct ieee80211_txrx_stypes
1601 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1602         [NL80211_IFTYPE_STATION] = {
1603                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1604                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1605                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1606                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1607         },
1608         [NL80211_IFTYPE_AP] = {
1609                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1610                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1611                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1612                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1613         },
1614         [NL80211_IFTYPE_P2P_CLIENT] = {
1615                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1616                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1617                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1618                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1619         },
1620         [NL80211_IFTYPE_P2P_GO] = {
1621                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1622                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1623                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1624                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1625         },
1626 };
1627
1628 /*
1629  * CFG802.11 operation handler for setting bit rates.
1630  *
1631  * Function configures data rates to firmware using bitrate mask
1632  * provided by cfg80211.
1633  */
1634 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1635                                 struct net_device *dev,
1636                                 const u8 *peer,
1637                                 const struct cfg80211_bitrate_mask *mask)
1638 {
1639         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1640         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1641         enum nl80211_band band;
1642         struct mwifiex_adapter *adapter = priv->adapter;
1643
1644         if (!priv->media_connected) {
1645                 mwifiex_dbg(adapter, ERROR,
1646                             "Can not set Tx data rate in disconnected state\n");
1647                 return -EINVAL;
1648         }
1649
1650         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1651
1652         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1653
1654         /* Fill HR/DSSS rates. */
1655         if (band == NL80211_BAND_2GHZ)
1656                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1657
1658         /* Fill OFDM rates */
1659         if (band == NL80211_BAND_2GHZ)
1660                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1661         else
1662                 bitmap_rates[1] = mask->control[band].legacy;
1663
1664         /* Fill HT MCS rates */
1665         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1666         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1667                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1668
1669        /* Fill VHT MCS rates */
1670         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1671                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1672                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1673                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1674         }
1675
1676         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1677                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1678 }
1679
1680 /*
1681  * CFG802.11 operation handler for connection quality monitoring.
1682  *
1683  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1684  * events to FW.
1685  */
1686 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1687                                                 struct net_device *dev,
1688                                                 s32 rssi_thold, u32 rssi_hyst)
1689 {
1690         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1691         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1692
1693         priv->cqm_rssi_thold = rssi_thold;
1694         priv->cqm_rssi_hyst = rssi_hyst;
1695
1696         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1697         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1698
1699         /* Subscribe/unsubscribe low and high rssi events */
1700         if (rssi_thold && rssi_hyst) {
1701                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1702                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1703                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1704                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1705                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1706                 return mwifiex_send_cmd(priv,
1707                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1708                                         0, 0, &subsc_evt, true);
1709         } else {
1710                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1711                 return mwifiex_send_cmd(priv,
1712                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1713                                         0, 0, &subsc_evt, true);
1714         }
1715
1716         return 0;
1717 }
1718
1719 /* cfg80211 operation handler for change_beacon.
1720  * Function retrieves and sets modified management IEs to FW.
1721  */
1722 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1723                                           struct net_device *dev,
1724                                           struct cfg80211_beacon_data *data)
1725 {
1726         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1727         struct mwifiex_adapter *adapter = priv->adapter;
1728
1729         mwifiex_cancel_scan(adapter);
1730
1731         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1732                 mwifiex_dbg(priv->adapter, ERROR,
1733                             "%s: bss_type mismatched\n", __func__);
1734                 return -EINVAL;
1735         }
1736
1737         if (!priv->bss_started) {
1738                 mwifiex_dbg(priv->adapter, ERROR,
1739                             "%s: bss not started\n", __func__);
1740                 return -EINVAL;
1741         }
1742
1743         if (mwifiex_set_mgmt_ies(priv, data)) {
1744                 mwifiex_dbg(priv->adapter, ERROR,
1745                             "%s: setting mgmt ies failed\n", __func__);
1746                 return -EFAULT;
1747         }
1748
1749         return 0;
1750 }
1751
1752 /* cfg80211 operation handler for del_station.
1753  * Function deauthenticates station which value is provided in mac parameter.
1754  * If mac is NULL/broadcast, all stations in associated station list are
1755  * deauthenticated. If bss is not started or there are no stations in
1756  * associated stations list, no action is taken.
1757  */
1758 static int
1759 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1760                              struct station_del_parameters *params)
1761 {
1762         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1763         struct mwifiex_sta_node *sta_node;
1764         u8 deauth_mac[ETH_ALEN];
1765         unsigned long flags;
1766
1767         if (!priv->bss_started && priv->wdev.cac_started) {
1768                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1769                 mwifiex_abort_cac(priv);
1770         }
1771
1772         if (list_empty(&priv->sta_list) || !priv->bss_started)
1773                 return 0;
1774
1775         if (!params->mac || is_broadcast_ether_addr(params->mac))
1776                 return 0;
1777
1778         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1779                     __func__, params->mac);
1780
1781         eth_zero_addr(deauth_mac);
1782
1783         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1784         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1785         if (sta_node)
1786                 ether_addr_copy(deauth_mac, params->mac);
1787         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1788
1789         if (is_valid_ether_addr(deauth_mac)) {
1790                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1791                                      HostCmd_ACT_GEN_SET, 0,
1792                                      deauth_mac, true))
1793                         return -1;
1794         }
1795
1796         return 0;
1797 }
1798
1799 static int
1800 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1801 {
1802         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1803         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1804                                                         MWIFIEX_BSS_ROLE_ANY);
1805         struct mwifiex_ds_ant_cfg ant_cfg;
1806
1807         if (!tx_ant || !rx_ant)
1808                 return -EOPNOTSUPP;
1809
1810         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1811                 /* Not a MIMO chip. User should provide specific antenna number
1812                  * for Tx/Rx path or enable all antennas for diversity
1813                  */
1814                 if (tx_ant != rx_ant)
1815                         return -EOPNOTSUPP;
1816
1817                 if ((tx_ant & (tx_ant - 1)) &&
1818                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1819                         return -EOPNOTSUPP;
1820
1821                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1822                     (priv->adapter->number_of_antenna > 1)) {
1823                         tx_ant = RF_ANTENNA_AUTO;
1824                         rx_ant = RF_ANTENNA_AUTO;
1825                 }
1826         } else {
1827                 struct ieee80211_sta_ht_cap *ht_info;
1828                 int rx_mcs_supp;
1829                 enum nl80211_band band;
1830
1831                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1832                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1833                         if (adapter->is_hw_11ac_capable)
1834                                 adapter->usr_dot_11ac_mcs_support =
1835                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1836                 } else {
1837                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1838                         if (adapter->is_hw_11ac_capable)
1839                                 adapter->usr_dot_11ac_mcs_support =
1840                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1841                 }
1842
1843                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1844                         if (!adapter->wiphy->bands[band])
1845                                 continue;
1846
1847                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1848                         rx_mcs_supp =
1849                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1850                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1851                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1852                 }
1853         }
1854
1855         ant_cfg.tx_ant = tx_ant;
1856         ant_cfg.rx_ant = rx_ant;
1857
1858         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1859                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1860 }
1861
1862 static int
1863 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1864 {
1865         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1866         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1867                                                         MWIFIEX_BSS_ROLE_ANY);
1868         mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1869                          HostCmd_ACT_GEN_GET, 0, NULL, true);
1870
1871         *tx_ant = priv->tx_ant;
1872         *rx_ant = priv->rx_ant;
1873
1874         return 0;
1875 }
1876
1877 /* cfg80211 operation handler for stop ap.
1878  * Function stops BSS running at uAP interface.
1879  */
1880 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1881 {
1882         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1883
1884         mwifiex_abort_cac(priv);
1885
1886         if (mwifiex_del_mgmt_ies(priv))
1887                 mwifiex_dbg(priv->adapter, ERROR,
1888                             "Failed to delete mgmt IEs!\n");
1889
1890         priv->ap_11n_enabled = 0;
1891         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1892
1893         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1894                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1895                 mwifiex_dbg(priv->adapter, ERROR,
1896                             "Failed to stop the BSS\n");
1897                 return -1;
1898         }
1899
1900         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1901                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1902                 mwifiex_dbg(priv->adapter, ERROR,
1903                             "Failed to reset BSS\n");
1904                 return -1;
1905         }
1906
1907         if (netif_carrier_ok(priv->netdev))
1908                 netif_carrier_off(priv->netdev);
1909         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1910
1911         return 0;
1912 }
1913
1914 /* cfg80211 operation handler for start_ap.
1915  * Function sets beacon period, DTIM period, SSID and security into
1916  * AP config structure.
1917  * AP is configured with these settings and BSS is started.
1918  */
1919 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1920                                      struct net_device *dev,
1921                                      struct cfg80211_ap_settings *params)
1922 {
1923         struct mwifiex_uap_bss_param *bss_cfg;
1924         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1925
1926         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1927                 return -1;
1928
1929         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1930         if (!bss_cfg)
1931                 return -ENOMEM;
1932
1933         mwifiex_set_sys_config_invalid_data(bss_cfg);
1934
1935         if (params->beacon_interval)
1936                 bss_cfg->beacon_period = params->beacon_interval;
1937         if (params->dtim_period)
1938                 bss_cfg->dtim_period = params->dtim_period;
1939
1940         if (params->ssid && params->ssid_len) {
1941                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1942                 bss_cfg->ssid.ssid_len = params->ssid_len;
1943         }
1944         if (params->inactivity_timeout > 0) {
1945                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1946                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1947                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1948         }
1949
1950         switch (params->hidden_ssid) {
1951         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1952                 bss_cfg->bcast_ssid_ctl = 1;
1953                 break;
1954         case NL80211_HIDDEN_SSID_ZERO_LEN:
1955                 bss_cfg->bcast_ssid_ctl = 0;
1956                 break;
1957         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1958                 /* firmware doesn't support this type of hidden SSID */
1959         default:
1960                 kfree(bss_cfg);
1961                 return -EINVAL;
1962         }
1963
1964         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1965         mwifiex_set_uap_rates(bss_cfg, params);
1966
1967         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1968                 mwifiex_dbg(priv->adapter, ERROR,
1969                             "Failed to parse secuirty parameters!\n");
1970                 goto out;
1971         }
1972
1973         mwifiex_set_ht_params(priv, bss_cfg, params);
1974
1975         if (priv->adapter->is_hw_11ac_capable) {
1976                 mwifiex_set_vht_params(priv, bss_cfg, params);
1977                 mwifiex_set_vht_width(priv, params->chandef.width,
1978                                       priv->ap_11ac_enabled);
1979         }
1980
1981         if (priv->ap_11ac_enabled)
1982                 mwifiex_set_11ac_ba_params(priv);
1983         else
1984                 mwifiex_set_ba_params(priv);
1985
1986         mwifiex_set_wmm_params(priv, bss_cfg, params);
1987
1988         if (mwifiex_is_11h_active(priv))
1989                 mwifiex_set_tpc_params(priv, bss_cfg, params);
1990
1991         if (mwifiex_is_11h_active(priv) &&
1992             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
1993                                            priv->bss_mode)) {
1994                 mwifiex_dbg(priv->adapter, INFO,
1995                             "Disable 11h extensions in FW\n");
1996                 if (mwifiex_11h_activate(priv, false)) {
1997                         mwifiex_dbg(priv->adapter, ERROR,
1998                                     "Failed to disable 11h extensions!!");
1999                         goto out;
2000                 }
2001                 priv->state_11h.is_11h_active = false;
2002         }
2003
2004         if (mwifiex_config_start_uap(priv, bss_cfg)) {
2005                 mwifiex_dbg(priv->adapter, ERROR,
2006                             "Failed to start AP\n");
2007                 goto out;
2008         }
2009
2010         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2011                 goto out;
2012
2013         if (!netif_carrier_ok(priv->netdev))
2014                 netif_carrier_on(priv->netdev);
2015         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2016
2017         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2018         kfree(bss_cfg);
2019         return 0;
2020
2021 out:
2022         kfree(bss_cfg);
2023         return -1;
2024 }
2025
2026 /*
2027  * CFG802.11 operation handler for disconnection request.
2028  *
2029  * This function does not work when there is already a disconnection
2030  * procedure going on.
2031  */
2032 static int
2033 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2034                             u16 reason_code)
2035 {
2036         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2037
2038         if (!mwifiex_stop_bg_scan(priv))
2039                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2040
2041         if (mwifiex_deauthenticate(priv, NULL))
2042                 return -EFAULT;
2043
2044         eth_zero_addr(priv->cfg_bssid);
2045         priv->hs2_enabled = false;
2046
2047         return 0;
2048 }
2049
2050 /*
2051  * This function informs the CFG802.11 subsystem of a new IBSS.
2052  *
2053  * The following information are sent to the CFG802.11 subsystem
2054  * to register the new IBSS. If we do not register the new IBSS,
2055  * a kernel panic will result.
2056  *      - SSID
2057  *      - SSID length
2058  *      - BSSID
2059  *      - Channel
2060  */
2061 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2062 {
2063         struct ieee80211_channel *chan;
2064         struct mwifiex_bss_info bss_info;
2065         struct cfg80211_bss *bss;
2066         int ie_len;
2067         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2068         enum nl80211_band band;
2069
2070         if (mwifiex_get_bss_info(priv, &bss_info))
2071                 return -1;
2072
2073         ie_buf[0] = WLAN_EID_SSID;
2074         ie_buf[1] = bss_info.ssid.ssid_len;
2075
2076         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2077                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2078         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2079
2080         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2081         chan = __ieee80211_get_channel(priv->wdev.wiphy,
2082                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2083                                                        band));
2084
2085         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2086                                   CFG80211_BSS_FTYPE_UNKNOWN,
2087                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2088                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2089         if (bss) {
2090                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2091                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2092         }
2093
2094         return 0;
2095 }
2096
2097 /*
2098  * This function connects with a BSS.
2099  *
2100  * This function handles both Infra and Ad-Hoc modes. It also performs
2101  * validity checking on the provided parameters, disconnects from the
2102  * current BSS (if any), sets up the association/scan parameters,
2103  * including security settings, and performs specific SSID scan before
2104  * trying to connect.
2105  *
2106  * For Infra mode, the function returns failure if the specified SSID
2107  * is not found in scan table. However, for Ad-Hoc mode, it can create
2108  * the IBSS if it does not exist. On successful completion in either case,
2109  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2110  */
2111 static int
2112 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2113                        const u8 *ssid, const u8 *bssid, int mode,
2114                        struct ieee80211_channel *channel,
2115                        struct cfg80211_connect_params *sme, bool privacy)
2116 {
2117         struct cfg80211_ssid req_ssid;
2118         int ret, auth_type = 0;
2119         struct cfg80211_bss *bss = NULL;
2120         u8 is_scanning_required = 0;
2121
2122         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2123
2124         req_ssid.ssid_len = ssid_len;
2125         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2126                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2127                 return -EINVAL;
2128         }
2129
2130         memcpy(req_ssid.ssid, ssid, ssid_len);
2131         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2132                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2133                 return -EINVAL;
2134         }
2135
2136         /* As this is new association, clear locally stored
2137          * keys and security related flags */
2138         priv->sec_info.wpa_enabled = false;
2139         priv->sec_info.wpa2_enabled = false;
2140         priv->wep_key_curr_index = 0;
2141         priv->sec_info.encryption_mode = 0;
2142         priv->sec_info.is_authtype_auto = 0;
2143         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2144
2145         if (mode == NL80211_IFTYPE_ADHOC) {
2146                 u16 enable = true;
2147
2148                 /* set ibss coalescing_status */
2149                 ret = mwifiex_send_cmd(
2150                                 priv,
2151                                 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2152                                 HostCmd_ACT_GEN_SET, 0, &enable, true);
2153                 if (ret)
2154                         return ret;
2155
2156                 /* "privacy" is set only for ad-hoc mode */
2157                 if (privacy) {
2158                         /*
2159                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2160                          * the firmware can find a matching network from the
2161                          * scan. The cfg80211 does not give us the encryption
2162                          * mode at this stage so just setting it to WEP here.
2163                          */
2164                         priv->sec_info.encryption_mode =
2165                                         WLAN_CIPHER_SUITE_WEP104;
2166                         priv->sec_info.authentication_mode =
2167                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2168                 }
2169
2170                 goto done;
2171         }
2172
2173         /* Now handle infra mode. "sme" is valid for infra mode only */
2174         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2175                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2176                 priv->sec_info.is_authtype_auto = 1;
2177         } else {
2178                 auth_type = sme->auth_type;
2179         }
2180
2181         if (sme->crypto.n_ciphers_pairwise) {
2182                 priv->sec_info.encryption_mode =
2183                                                 sme->crypto.ciphers_pairwise[0];
2184                 priv->sec_info.authentication_mode = auth_type;
2185         }
2186
2187         if (sme->crypto.cipher_group) {
2188                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2189                 priv->sec_info.authentication_mode = auth_type;
2190         }
2191         if (sme->ie)
2192                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2193
2194         if (sme->key) {
2195                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2196                         mwifiex_dbg(priv->adapter, INFO,
2197                                     "info: setting wep encryption\t"
2198                                     "with key len %d\n", sme->key_len);
2199                         priv->wep_key_curr_index = sme->key_idx;
2200                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2201                                                  sme->key_len, sme->key_idx,
2202                                                  NULL, 0);
2203                 }
2204         }
2205 done:
2206         /*
2207          * Scan entries are valid for some time (15 sec). So we can save one
2208          * active scan time if we just try cfg80211_get_bss first. If it fails
2209          * then request scan and cfg80211_get_bss() again for final output.
2210          */
2211         while (1) {
2212                 if (is_scanning_required) {
2213                         /* Do specific SSID scanning */
2214                         if (mwifiex_request_scan(priv, &req_ssid)) {
2215                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2216                                 return -EFAULT;
2217                         }
2218                 }
2219
2220                 /* Find the BSS we want using available scan results */
2221                 if (mode == NL80211_IFTYPE_ADHOC)
2222                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2223                                                bssid, ssid, ssid_len,
2224                                                IEEE80211_BSS_TYPE_IBSS,
2225                                                IEEE80211_PRIVACY_ANY);
2226                 else
2227                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2228                                                bssid, ssid, ssid_len,
2229                                                IEEE80211_BSS_TYPE_ESS,
2230                                                IEEE80211_PRIVACY_ANY);
2231
2232                 if (!bss) {
2233                         if (is_scanning_required) {
2234                                 mwifiex_dbg(priv->adapter, WARN,
2235                                             "assoc: requested bss not found in scan results\n");
2236                                 break;
2237                         }
2238                         is_scanning_required = 1;
2239                 } else {
2240                         mwifiex_dbg(priv->adapter, MSG,
2241                                     "info: trying to associate to '%.*s' bssid %pM\n",
2242                                     req_ssid.ssid_len, (char *)req_ssid.ssid,
2243                                     bss->bssid);
2244                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2245                         break;
2246                 }
2247         }
2248
2249         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2250         if (ret)
2251                 return ret;
2252
2253         if (mode == NL80211_IFTYPE_ADHOC) {
2254                 /* Inform the BSS information to kernel, otherwise
2255                  * kernel will give a panic after successful assoc */
2256                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2257                         return -EFAULT;
2258         }
2259
2260         return ret;
2261 }
2262
2263 /*
2264  * CFG802.11 operation handler for association request.
2265  *
2266  * This function does not work when the current mode is set to Ad-Hoc, or
2267  * when there is already an association procedure going on. The given BSS
2268  * information is used to associate.
2269  */
2270 static int
2271 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2272                          struct cfg80211_connect_params *sme)
2273 {
2274         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2275         struct mwifiex_adapter *adapter = priv->adapter;
2276         int ret;
2277
2278         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2279                 mwifiex_dbg(adapter, ERROR,
2280                             "%s: reject infra assoc request in non-STA role\n",
2281                             dev->name);
2282                 return -EINVAL;
2283         }
2284
2285         if (priv->wdev.current_bss) {
2286                 mwifiex_dbg(adapter, ERROR,
2287                             "%s: already connected\n", dev->name);
2288                 return -EALREADY;
2289         }
2290
2291         if (priv->scan_block)
2292                 priv->scan_block = false;
2293
2294         if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2295                 mwifiex_dbg(adapter, ERROR,
2296                             "%s: Ignore connection.\t"
2297                             "Card removed or FW in bad state\n",
2298                             dev->name);
2299                 return -EFAULT;
2300         }
2301
2302         mwifiex_dbg(adapter, INFO,
2303                     "info: Trying to associate to %.*s and bssid %pM\n",
2304                     (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2305
2306         if (!mwifiex_stop_bg_scan(priv))
2307                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2308
2309         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2310                                      priv->bss_mode, sme->channel, sme, 0);
2311         if (!ret) {
2312                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2313                                         NULL, 0, WLAN_STATUS_SUCCESS,
2314                                         GFP_KERNEL);
2315                 mwifiex_dbg(priv->adapter, MSG,
2316                             "info: associated to bssid %pM successfully\n",
2317                             priv->cfg_bssid);
2318                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2319                     priv->adapter->auto_tdls &&
2320                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2321                         mwifiex_setup_auto_tdls_timer(priv);
2322         } else {
2323                 mwifiex_dbg(priv->adapter, ERROR,
2324                             "info: association to bssid %pM failed\n",
2325                             priv->cfg_bssid);
2326                 eth_zero_addr(priv->cfg_bssid);
2327
2328                 if (ret > 0)
2329                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2330                                                 NULL, 0, NULL, 0, ret,
2331                                                 GFP_KERNEL);
2332                 else
2333                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2334                                                 NULL, 0, NULL, 0,
2335                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2336                                                 GFP_KERNEL);
2337         }
2338
2339         return 0;
2340 }
2341
2342 /*
2343  * This function sets following parameters for ibss network.
2344  *  -  channel
2345  *  -  start band
2346  *  -  11n flag
2347  *  -  secondary channel offset
2348  */
2349 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2350                                    struct cfg80211_ibss_params *params)
2351 {
2352         struct mwifiex_adapter *adapter = priv->adapter;
2353         int index = 0, i;
2354         u8 config_bands = 0;
2355
2356         if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2357                 if (!params->basic_rates) {
2358                         config_bands = BAND_B | BAND_G;
2359                 } else {
2360                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2361                                 /*
2362                                  * Rates below 6 Mbps in the table are CCK
2363                                  * rates; 802.11b and from 6 they are OFDM;
2364                                  * 802.11G
2365                                  */
2366                                 if (mwifiex_rates[i].bitrate == 60) {
2367                                         index = 1 << i;
2368                                         break;
2369                                 }
2370                         }
2371
2372                         if (params->basic_rates < index) {
2373                                 config_bands = BAND_B;
2374                         } else {
2375                                 config_bands = BAND_G;
2376                                 if (params->basic_rates % index)
2377                                         config_bands |= BAND_B;
2378                         }
2379                 }
2380
2381                 if (cfg80211_get_chandef_type(&params->chandef) !=
2382                                                 NL80211_CHAN_NO_HT)
2383                         config_bands |= BAND_G | BAND_GN;
2384         } else {
2385                 if (cfg80211_get_chandef_type(&params->chandef) ==
2386                                                 NL80211_CHAN_NO_HT)
2387                         config_bands = BAND_A;
2388                 else
2389                         config_bands = BAND_AN | BAND_A;
2390         }
2391
2392         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2393                 adapter->config_bands = config_bands;
2394                 adapter->adhoc_start_band = config_bands;
2395
2396                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2397                         adapter->adhoc_11n_enabled = true;
2398                 else
2399                         adapter->adhoc_11n_enabled = false;
2400         }
2401
2402         adapter->sec_chan_offset =
2403                 mwifiex_chan_type_to_sec_chan_offset(
2404                         cfg80211_get_chandef_type(&params->chandef));
2405         priv->adhoc_channel = ieee80211_frequency_to_channel(
2406                                 params->chandef.chan->center_freq);
2407
2408         mwifiex_dbg(adapter, INFO,
2409                     "info: set ibss band %d, chan %d, chan offset %d\n",
2410                     config_bands, priv->adhoc_channel,
2411                     adapter->sec_chan_offset);
2412
2413         return 0;
2414 }
2415
2416 /*
2417  * CFG802.11 operation handler to join an IBSS.
2418  *
2419  * This function does not work in any mode other than Ad-Hoc, or if
2420  * a join operation is already in progress.
2421  */
2422 static int
2423 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2424                            struct cfg80211_ibss_params *params)
2425 {
2426         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2427         int ret = 0;
2428
2429         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2430                 mwifiex_dbg(priv->adapter, ERROR,
2431                             "request to join ibss received\t"
2432                             "when station is not in ibss mode\n");
2433                 goto done;
2434         }
2435
2436         mwifiex_dbg(priv->adapter, MSG,
2437                     "info: trying to join to %.*s and bssid %pM\n",
2438                     params->ssid_len, (char *)params->ssid, params->bssid);
2439
2440         mwifiex_set_ibss_params(priv, params);
2441
2442         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2443                                      params->bssid, priv->bss_mode,
2444                                      params->chandef.chan, NULL,
2445                                      params->privacy);
2446 done:
2447         if (!ret) {
2448                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2449                                      params->chandef.chan, GFP_KERNEL);
2450                 mwifiex_dbg(priv->adapter, MSG,
2451                             "info: joined/created adhoc network with bssid\t"
2452                             "%pM successfully\n", priv->cfg_bssid);
2453         } else {
2454                 mwifiex_dbg(priv->adapter, ERROR,
2455                             "info: failed creating/joining adhoc network\n");
2456         }
2457
2458         return ret;
2459 }
2460
2461 /*
2462  * CFG802.11 operation handler to leave an IBSS.
2463  *
2464  * This function does not work if a leave operation is
2465  * already in progress.
2466  */
2467 static int
2468 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2469 {
2470         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2471
2472         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2473                     priv->cfg_bssid);
2474         if (mwifiex_deauthenticate(priv, NULL))
2475                 return -EFAULT;
2476
2477         eth_zero_addr(priv->cfg_bssid);
2478
2479         return 0;
2480 }
2481
2482 /*
2483  * CFG802.11 operation handler for scan request.
2484  *
2485  * This function issues a scan request to the firmware based upon
2486  * the user specified scan configuration. On successful completion,
2487  * it also informs the results.
2488  */
2489 static int
2490 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2491                       struct cfg80211_scan_request *request)
2492 {
2493         struct net_device *dev = request->wdev->netdev;
2494         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2495         int i, offset, ret;
2496         struct ieee80211_channel *chan;
2497         struct ieee_types_header *ie;
2498         struct mwifiex_user_scan_cfg *user_scan_cfg;
2499
2500         mwifiex_dbg(priv->adapter, CMD,
2501                     "info: received scan request on %s\n", dev->name);
2502
2503         /* Block scan request if scan operation or scan cleanup when interface
2504          * is disabled is in process
2505          */
2506         if (priv->scan_request || priv->scan_aborting) {
2507                 mwifiex_dbg(priv->adapter, WARN,
2508                             "cmd: Scan already in process..\n");
2509                 return -EBUSY;
2510         }
2511
2512         if (!priv->wdev.current_bss && priv->scan_block)
2513                 priv->scan_block = false;
2514
2515         if (!mwifiex_stop_bg_scan(priv))
2516                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2517
2518         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2519         if (!user_scan_cfg)
2520                 return -ENOMEM;
2521
2522         priv->scan_request = request;
2523
2524         if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2525                 ether_addr_copy(priv->random_mac, request->mac_addr);
2526                 for (i = 0; i < ETH_ALEN; i++) {
2527                         priv->random_mac[i] &= request->mac_addr_mask[i];
2528                         priv->random_mac[i] |= get_random_int() &
2529                                                ~(request->mac_addr_mask[i]);
2530                 }
2531         }
2532
2533         ether_addr_copy(user_scan_cfg->random_mac, priv->random_mac);
2534         user_scan_cfg->num_ssids = request->n_ssids;
2535         user_scan_cfg->ssid_list = request->ssids;
2536
2537         if (request->ie && request->ie_len) {
2538                 offset = 0;
2539                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2540                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2541                                 continue;
2542                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2543                         ie = (struct ieee_types_header *)(request->ie + offset);
2544                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2545                         offset += sizeof(*ie) + ie->len;
2546
2547                         if (offset >= request->ie_len)
2548                                 break;
2549                 }
2550         }
2551
2552         for (i = 0; i < min_t(u32, request->n_channels,
2553                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2554                 chan = request->channels[i];
2555                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2556                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2557
2558                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2559                         user_scan_cfg->chan_list[i].scan_type =
2560                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2561                 else
2562                         user_scan_cfg->chan_list[i].scan_type =
2563                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2564
2565                 user_scan_cfg->chan_list[i].scan_time = 0;
2566         }
2567
2568         if (priv->adapter->scan_chan_gap_enabled &&
2569             mwifiex_is_any_intf_active(priv))
2570                 user_scan_cfg->scan_chan_gap =
2571                                               priv->adapter->scan_chan_gap_time;
2572
2573         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2574         kfree(user_scan_cfg);
2575         if (ret) {
2576                 mwifiex_dbg(priv->adapter, ERROR,
2577                             "scan failed: %d\n", ret);
2578                 priv->scan_aborting = false;
2579                 priv->scan_request = NULL;
2580                 return ret;
2581         }
2582
2583         if (request->ie && request->ie_len) {
2584                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2585                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2586                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2587                                 memset(&priv->vs_ie[i].ie, 0,
2588                                        MWIFIEX_MAX_VSIE_LEN);
2589                         }
2590                 }
2591         }
2592         return 0;
2593 }
2594
2595 /* CFG802.11 operation handler for sched_scan_start.
2596  *
2597  * This function issues a bgscan config request to the firmware based upon
2598  * the user specified sched_scan configuration. On successful completion,
2599  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2600  * query command to get sched_scan results from firmware.
2601  */
2602 static int
2603 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2604                                   struct net_device *dev,
2605                                   struct cfg80211_sched_scan_request *request)
2606 {
2607         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2608         int i, offset;
2609         struct ieee80211_channel *chan;
2610         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2611         struct ieee_types_header *ie;
2612
2613         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2614                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2615                           __func__);
2616                 return -EINVAL;
2617         }
2618
2619         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2620                    request->n_ssids, request->n_match_sets);
2621         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2622                    request->n_channels, request->scan_plans->interval,
2623                    (int)request->ie_len);
2624
2625         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2626         if (!bgscan_cfg)
2627                 return -ENOMEM;
2628
2629         if (priv->scan_request || priv->scan_aborting)
2630                 bgscan_cfg->start_later = true;
2631
2632         bgscan_cfg->num_ssids = request->n_match_sets;
2633         bgscan_cfg->ssid_list = request->match_sets;
2634
2635         if (request->ie && request->ie_len) {
2636                 offset = 0;
2637                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2638                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2639                                 continue;
2640                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2641                         ie = (struct ieee_types_header *)(request->ie + offset);
2642                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2643                         offset += sizeof(*ie) + ie->len;
2644
2645                         if (offset >= request->ie_len)
2646                                 break;
2647                 }
2648         }
2649
2650         for (i = 0; i < min_t(u32, request->n_channels,
2651                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2652                 chan = request->channels[i];
2653                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2654                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2655
2656                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2657                         bgscan_cfg->chan_list[i].scan_type =
2658                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2659                 else
2660                         bgscan_cfg->chan_list[i].scan_type =
2661                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2662
2663                 bgscan_cfg->chan_list[i].scan_time = 0;
2664         }
2665
2666         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2667                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2668
2669         /* Use at least 15 second for per scan cycle */
2670         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2671                                      MWIFIEX_BGSCAN_INTERVAL) ?
2672                                 request->scan_plans->interval :
2673                                 MWIFIEX_BGSCAN_INTERVAL;
2674
2675         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2676         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2677                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2678         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2679         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2680         bgscan_cfg->enable = true;
2681         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2682                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2683                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2684         }
2685
2686         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2687                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2688                 kfree(bgscan_cfg);
2689                 return -EFAULT;
2690         }
2691
2692         priv->sched_scanning = true;
2693
2694         kfree(bgscan_cfg);
2695         return 0;
2696 }
2697
2698 /* CFG802.11 operation handler for sched_scan_stop.
2699  *
2700  * This function issues a bgscan config command to disable
2701  * previous bgscan configuration in the firmware
2702  */
2703 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2704                                             struct net_device *dev)
2705 {
2706         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2707
2708         wiphy_info(wiphy, "sched scan stop!");
2709         mwifiex_stop_bg_scan(priv);
2710
2711         return 0;
2712 }
2713
2714 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2715                                    struct mwifiex_private *priv)
2716 {
2717         struct mwifiex_adapter *adapter = priv->adapter;
2718
2719         vht_info->vht_supported = true;
2720
2721         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2722         /* Update MCS support for VHT */
2723         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2724                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2725         vht_info->vht_mcs.rx_highest = 0;
2726         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2727                                 adapter->hw_dot_11ac_mcs_support >> 16);
2728         vht_info->vht_mcs.tx_highest = 0;
2729 }
2730
2731 /*
2732  * This function sets up the CFG802.11 specific HT capability fields
2733  * with default values.
2734  *
2735  * The following default values are set -
2736  *      - HT Supported = True
2737  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2738  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2739  *      - HT Capabilities supported by firmware
2740  *      - MCS information, Rx mask = 0xff
2741  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2742  */
2743 static void
2744 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2745                       struct mwifiex_private *priv)
2746 {
2747         int rx_mcs_supp;
2748         struct ieee80211_mcs_info mcs_set;
2749         u8 *mcs = (u8 *)&mcs_set;
2750         struct mwifiex_adapter *adapter = priv->adapter;
2751
2752         ht_info->ht_supported = true;
2753         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2754         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2755
2756         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2757
2758         /* Fill HT capability information */
2759         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2760                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2761         else
2762                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2763
2764         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2765                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2766         else
2767                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2768
2769         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2770                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2771         else
2772                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2773
2774         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2775                 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2776         else
2777                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2778
2779         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2780                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2781         else
2782                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2783
2784         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2785                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2786         else
2787                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2788
2789         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2790                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2791         else
2792                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2793
2794         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2795                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2796         else
2797                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2798
2799         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2800         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2801
2802         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2803         /* Set MCS for 1x1/2x2 */
2804         memset(mcs, 0xff, rx_mcs_supp);
2805         /* Clear all the other values */
2806         memset(&mcs[rx_mcs_supp], 0,
2807                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2808         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2809             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2810                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2811                 SETHT_MCS32(mcs_set.rx_mask);
2812
2813         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2814
2815         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2816 }
2817
2818 /*
2819  *  create a new virtual interface with the given name and name assign type
2820  */
2821 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2822                                               const char *name,
2823                                               unsigned char name_assign_type,
2824                                               enum nl80211_iftype type,
2825                                               u32 *flags,
2826                                               struct vif_params *params)
2827 {
2828         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2829         struct mwifiex_private *priv;
2830         struct net_device *dev;
2831         void *mdev_priv;
2832         int ret;
2833
2834         if (!adapter)
2835                 return ERR_PTR(-EFAULT);
2836
2837         switch (type) {
2838         case NL80211_IFTYPE_UNSPECIFIED:
2839         case NL80211_IFTYPE_STATION:
2840         case NL80211_IFTYPE_ADHOC:
2841                 if (adapter->curr_iface_comb.sta_intf ==
2842                     adapter->iface_limit.sta_intf) {
2843                         mwifiex_dbg(adapter, ERROR,
2844                                     "cannot create multiple sta/adhoc ifaces\n");
2845                         return ERR_PTR(-EINVAL);
2846                 }
2847
2848                 priv = mwifiex_get_unused_priv_by_bss_type(
2849                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2850                 if (!priv) {
2851                         mwifiex_dbg(adapter, ERROR,
2852                                     "could not get free private struct\n");
2853                         return ERR_PTR(-EFAULT);
2854                 }
2855
2856                 priv->wdev.wiphy = wiphy;
2857                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2858
2859                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2860                         priv->bss_mode = NL80211_IFTYPE_STATION;
2861                 else
2862                         priv->bss_mode = type;
2863
2864                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2865                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2866                 priv->bss_priority = 0;
2867                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2868
2869                 break;
2870         case NL80211_IFTYPE_AP:
2871                 if (adapter->curr_iface_comb.uap_intf ==
2872                     adapter->iface_limit.uap_intf) {
2873                         mwifiex_dbg(adapter, ERROR,
2874                                     "cannot create multiple AP ifaces\n");
2875                         return ERR_PTR(-EINVAL);
2876                 }
2877
2878                 priv = mwifiex_get_unused_priv_by_bss_type(
2879                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
2880                 if (!priv) {
2881                         mwifiex_dbg(adapter, ERROR,
2882                                     "could not get free private struct\n");
2883                         return ERR_PTR(-EFAULT);
2884                 }
2885
2886                 priv->wdev.wiphy = wiphy;
2887                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2888
2889                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2890                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2891                 priv->bss_priority = 0;
2892                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2893                 priv->bss_started = 0;
2894                 priv->bss_mode = type;
2895
2896                 break;
2897         case NL80211_IFTYPE_P2P_CLIENT:
2898                 if (adapter->curr_iface_comb.p2p_intf ==
2899                     adapter->iface_limit.p2p_intf) {
2900                         mwifiex_dbg(adapter, ERROR,
2901                                     "cannot create multiple P2P ifaces\n");
2902                         return ERR_PTR(-EINVAL);
2903                 }
2904
2905                 priv = mwifiex_get_unused_priv_by_bss_type(
2906                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
2907                 if (!priv) {
2908                         mwifiex_dbg(adapter, ERROR,
2909                                     "could not get free private struct\n");
2910                         return ERR_PTR(-EFAULT);
2911                 }
2912
2913                 priv->wdev.wiphy = wiphy;
2914                 /* At start-up, wpa_supplicant tries to change the interface
2915                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2916                  */
2917                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2918                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2919
2920                 /* Setting bss_type to P2P tells firmware that this interface
2921                  * is receiving P2P peers found during find phase and doing
2922                  * action frame handshake.
2923                  */
2924                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2925
2926                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2927                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2928                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2929                 priv->bss_started = 0;
2930
2931                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2932                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2933                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2934                         return ERR_PTR(-EFAULT);
2935                 }
2936
2937                 break;
2938         default:
2939                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2940                 return ERR_PTR(-EINVAL);
2941         }
2942
2943         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2944                                name_assign_type, ether_setup,
2945                                IEEE80211_NUM_ACS, 1);
2946         if (!dev) {
2947                 mwifiex_dbg(adapter, ERROR,
2948                             "no memory available for netdevice\n");
2949                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2950                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2951                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2952                 return ERR_PTR(-ENOMEM);
2953         }
2954
2955         mwifiex_init_priv_params(priv, dev);
2956         priv->netdev = dev;
2957
2958         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
2959                                HostCmd_ACT_GEN_SET, 0, NULL, true);
2960         if (ret)
2961                 return ERR_PTR(ret);
2962
2963         ret = mwifiex_sta_init_cmd(priv, false, false);
2964         if (ret)
2965                 return ERR_PTR(ret);
2966
2967         mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
2968         if (adapter->is_hw_11ac_capable)
2969                 mwifiex_setup_vht_caps(
2970                         &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
2971
2972         if (adapter->config_bands & BAND_A)
2973                 mwifiex_setup_ht_caps(
2974                         &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
2975
2976         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2977                 mwifiex_setup_vht_caps(
2978                         &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
2979
2980         dev_net_set(dev, wiphy_net(wiphy));
2981         dev->ieee80211_ptr = &priv->wdev;
2982         dev->ieee80211_ptr->iftype = priv->bss_mode;
2983         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2984         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2985
2986         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2987         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2988         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2989         dev->ethtool_ops = &mwifiex_ethtool_ops;
2990
2991         mdev_priv = netdev_priv(dev);
2992         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2993
2994         SET_NETDEV_DEV(dev, adapter->dev);
2995
2996         /* Register network device */
2997         if (register_netdevice(dev)) {
2998                 mwifiex_dbg(adapter, ERROR,
2999                             "cannot register virtual network device\n");
3000                 free_netdev(dev);
3001                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3002                 priv->netdev = NULL;
3003                 memset(&priv->wdev, 0, sizeof(priv->wdev));
3004                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3005                 return ERR_PTR(-EFAULT);
3006         }
3007
3008         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3009                                                   WQ_HIGHPRI |
3010                                                   WQ_MEM_RECLAIM |
3011                                                   WQ_UNBOUND, 1, name);
3012         if (!priv->dfs_cac_workqueue) {
3013                 mwifiex_dbg(adapter, ERROR,
3014                             "cannot register virtual network device\n");
3015                 free_netdev(dev);
3016                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3017                 priv->netdev = NULL;
3018                 memset(&priv->wdev, 0, sizeof(priv->wdev));
3019                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3020                 return ERR_PTR(-ENOMEM);
3021         }
3022
3023         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3024
3025         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3026                                                       WQ_HIGHPRI | WQ_UNBOUND |
3027                                                       WQ_MEM_RECLAIM, 1, name);
3028         if (!priv->dfs_chan_sw_workqueue) {
3029                 mwifiex_dbg(adapter, ERROR,
3030                             "cannot register virtual network device\n");
3031                 free_netdev(dev);
3032                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3033                 priv->netdev = NULL;
3034                 memset(&priv->wdev, 0, sizeof(priv->wdev));
3035                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3036                 destroy_workqueue(priv->dfs_cac_workqueue);
3037                 priv->dfs_cac_workqueue = NULL;
3038                 return ERR_PTR(-ENOMEM);
3039         }
3040
3041         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3042                           mwifiex_dfs_chan_sw_work_queue);
3043
3044         sema_init(&priv->async_sem, 1);
3045
3046         mwifiex_dbg(adapter, INFO,
3047                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
3048
3049 #ifdef CONFIG_DEBUG_FS
3050         mwifiex_dev_debugfs_init(priv);
3051 #endif
3052
3053         switch (type) {
3054         case NL80211_IFTYPE_UNSPECIFIED:
3055         case NL80211_IFTYPE_STATION:
3056         case NL80211_IFTYPE_ADHOC:
3057                 adapter->curr_iface_comb.sta_intf++;
3058                 break;
3059         case NL80211_IFTYPE_AP:
3060                 adapter->curr_iface_comb.uap_intf++;
3061                 break;
3062         case NL80211_IFTYPE_P2P_CLIENT:
3063                 adapter->curr_iface_comb.p2p_intf++;
3064                 break;
3065         default:
3066                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3067                 return ERR_PTR(-EINVAL);
3068         }
3069
3070         return &priv->wdev;
3071 }
3072 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3073
3074 /*
3075  * del_virtual_intf: remove the virtual interface determined by dev
3076  */
3077 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3078 {
3079         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3080         struct mwifiex_adapter *adapter = priv->adapter;
3081         struct sk_buff *skb, *tmp;
3082
3083 #ifdef CONFIG_DEBUG_FS
3084         mwifiex_dev_debugfs_remove(priv);
3085 #endif
3086
3087         if (priv->sched_scanning)
3088                 priv->sched_scanning = false;
3089
3090         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3091
3092         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3093                 skb_unlink(skb, &priv->bypass_txq);
3094                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3095         }
3096
3097         if (netif_carrier_ok(priv->netdev))
3098                 netif_carrier_off(priv->netdev);
3099
3100         if (wdev->netdev->reg_state == NETREG_REGISTERED)
3101                 unregister_netdevice(wdev->netdev);
3102
3103         if (priv->dfs_cac_workqueue) {
3104                 flush_workqueue(priv->dfs_cac_workqueue);
3105                 destroy_workqueue(priv->dfs_cac_workqueue);
3106                 priv->dfs_cac_workqueue = NULL;
3107         }
3108
3109         if (priv->dfs_chan_sw_workqueue) {
3110                 flush_workqueue(priv->dfs_chan_sw_workqueue);
3111                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3112                 priv->dfs_chan_sw_workqueue = NULL;
3113         }
3114         /* Clear the priv in adapter */
3115         priv->netdev->ieee80211_ptr = NULL;
3116         priv->netdev = NULL;
3117         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3118
3119         priv->media_connected = false;
3120
3121         switch (priv->bss_mode) {
3122         case NL80211_IFTYPE_UNSPECIFIED:
3123         case NL80211_IFTYPE_STATION:
3124         case NL80211_IFTYPE_ADHOC:
3125                 adapter->curr_iface_comb.sta_intf--;
3126                 break;
3127         case NL80211_IFTYPE_AP:
3128                 adapter->curr_iface_comb.uap_intf--;
3129                 break;
3130         case NL80211_IFTYPE_P2P_CLIENT:
3131         case NL80211_IFTYPE_P2P_GO:
3132                 adapter->curr_iface_comb.p2p_intf--;
3133                 break;
3134         default:
3135                 mwifiex_dbg(adapter, ERROR,
3136                             "del_virtual_intf: type not supported\n");
3137                 break;
3138         }
3139
3140         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3141
3142         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3143             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3144                 kfree(priv->hist_data);
3145
3146         return 0;
3147 }
3148 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3149
3150 static bool
3151 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3152                              u8 max_byte_seq)
3153 {
3154         int j, k, valid_byte_cnt = 0;
3155         bool dont_care_byte = false;
3156
3157         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3158                 for (k = 0; k < 8; k++) {
3159                         if (pat->mask[j] & 1 << k) {
3160                                 memcpy(byte_seq + valid_byte_cnt,
3161                                        &pat->pattern[j * 8 + k], 1);
3162                                 valid_byte_cnt++;
3163                                 if (dont_care_byte)
3164                                         return false;
3165                         } else {
3166                                 if (valid_byte_cnt)
3167                                         dont_care_byte = true;
3168                         }
3169
3170                         /* wildcard bytes record as the offset
3171                          * before the valid byte
3172                          */
3173                         if (!valid_byte_cnt && !dont_care_byte)
3174                                 pat->pkt_offset++;
3175
3176                         if (valid_byte_cnt > max_byte_seq)
3177                                 return false;
3178                 }
3179         }
3180
3181         byte_seq[max_byte_seq] = valid_byte_cnt;
3182
3183         return true;
3184 }
3185
3186 #ifdef CONFIG_PM
3187 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3188                                            struct mwifiex_mef_entry *mef_entry)
3189 {
3190         int i, filt_num = 0, num_ipv4 = 0;
3191         struct in_device *in_dev;
3192         struct in_ifaddr *ifa;
3193         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3194         struct mwifiex_adapter *adapter = priv->adapter;
3195
3196         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3197         mef_entry->action = MEF_ACTION_AUTO_ARP;
3198
3199         /* Enable ARP offload feature */
3200         memset(ips, 0, sizeof(ips));
3201         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3202                 if (adapter->priv[i]->netdev) {
3203                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3204                         if (!in_dev)
3205                                 continue;
3206                         ifa = in_dev->ifa_list;
3207                         if (!ifa || !ifa->ifa_local)
3208                                 continue;
3209                         ips[i] = ifa->ifa_local;
3210                         num_ipv4++;
3211                 }
3212         }
3213
3214         for (i = 0; i < num_ipv4; i++) {
3215                 if (!ips[i])
3216                         continue;
3217                 mef_entry->filter[filt_num].repeat = 1;
3218                 memcpy(mef_entry->filter[filt_num].byte_seq,
3219                        (u8 *)&ips[i], sizeof(ips[i]));
3220                 mef_entry->filter[filt_num].
3221                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3222                         sizeof(ips[i]);
3223                 mef_entry->filter[filt_num].offset = 46;
3224                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3225                 if (filt_num) {
3226                         mef_entry->filter[filt_num].filt_action =
3227                                 TYPE_OR;
3228                 }
3229                 filt_num++;
3230         }
3231
3232         mef_entry->filter[filt_num].repeat = 1;
3233         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3234         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3235         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3236         mef_entry->filter[filt_num].offset = 20;
3237         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3238         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3239 }
3240
3241 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3242                                         struct mwifiex_ds_mef_cfg *mef_cfg,
3243                                         struct mwifiex_mef_entry *mef_entry,
3244                                         struct cfg80211_wowlan *wowlan)
3245 {
3246         int i, filt_num = 0, ret = 0;
3247         bool first_pat = true;
3248         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3249         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3250         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3251
3252         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3253         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3254
3255         for (i = 0; i < wowlan->n_patterns; i++) {
3256                 memset(byte_seq, 0, sizeof(byte_seq));
3257                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3258                                         byte_seq,
3259                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3260                         mwifiex_dbg(priv->adapter, ERROR,
3261                                     "Pattern not supported\n");
3262                         return -EOPNOTSUPP;
3263                 }
3264
3265                 if (!wowlan->patterns[i].pkt_offset) {
3266                         if (!(byte_seq[0] & 0x01) &&
3267                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3268                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3269                                 continue;
3270                         } else if (is_broadcast_ether_addr(byte_seq)) {
3271                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3272                                 continue;
3273                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3274                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3275                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3276                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3277                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3278                                 continue;
3279                         }
3280                 }
3281                 mef_entry->filter[filt_num].repeat = 1;
3282                 mef_entry->filter[filt_num].offset =
3283                         wowlan->patterns[i].pkt_offset;
3284                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3285                                 sizeof(byte_seq));
3286                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3287
3288                 if (first_pat) {
3289                         first_pat = false;
3290                         mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3291                 } else {
3292                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3293                 }
3294
3295                 filt_num++;
3296         }
3297
3298         if (wowlan->magic_pkt) {
3299                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3300                 mef_entry->filter[filt_num].repeat = 16;
3301                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3302                                 ETH_ALEN);
3303                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3304                         ETH_ALEN;
3305                 mef_entry->filter[filt_num].offset = 28;
3306                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3307                 if (filt_num)
3308                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3309
3310                 filt_num++;
3311                 mef_entry->filter[filt_num].repeat = 16;
3312                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3313                                 ETH_ALEN);
3314                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3315                         ETH_ALEN;
3316                 mef_entry->filter[filt_num].offset = 56;
3317                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3318                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3319                 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3320         }
3321         return ret;
3322 }
3323
3324 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3325                                   struct cfg80211_wowlan *wowlan)
3326 {
3327         int ret = 0, num_entries = 1;
3328         struct mwifiex_ds_mef_cfg mef_cfg;
3329         struct mwifiex_mef_entry *mef_entry;
3330
3331         if (wowlan->n_patterns || wowlan->magic_pkt)
3332                 num_entries++;
3333
3334         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3335         if (!mef_entry)
3336                 return -ENOMEM;
3337
3338         memset(&mef_cfg, 0, sizeof(mef_cfg));
3339         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3340                 MWIFIEX_CRITERIA_UNICAST;
3341         mef_cfg.num_entries = num_entries;
3342         mef_cfg.mef_entry = mef_entry;
3343
3344         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3345
3346         if (wowlan->n_patterns || wowlan->magic_pkt) {
3347                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3348                                                    &mef_entry[1], wowlan);
3349                 if (ret)
3350                         goto err;
3351         }
3352
3353         if (!mef_cfg.criteria)
3354                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3355                         MWIFIEX_CRITERIA_UNICAST |
3356                         MWIFIEX_CRITERIA_MULTICAST;
3357
3358         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3359                         HostCmd_ACT_GEN_SET, 0,
3360                         &mef_cfg, true);
3361
3362 err:
3363         kfree(mef_entry);
3364         return ret;
3365 }
3366
3367 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3368                                     struct cfg80211_wowlan *wowlan)
3369 {
3370         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3371         struct mwifiex_ds_hs_cfg hs_cfg;
3372         int i, ret = 0, retry_num = 10;
3373         struct mwifiex_private *priv;
3374         struct mwifiex_private *sta_priv =
3375                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3376
3377         sta_priv->scan_aborting = true;
3378         for (i = 0; i < adapter->priv_num; i++) {
3379                 priv = adapter->priv[i];
3380                 mwifiex_abort_cac(priv);
3381         }
3382
3383         mwifiex_cancel_all_pending_cmd(adapter);
3384
3385         for (i = 0; i < adapter->priv_num; i++) {
3386                 priv = adapter->priv[i];
3387                 if (priv && priv->netdev) {
3388                         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3389                         if (netif_carrier_ok(priv->netdev))
3390                                 netif_carrier_off(priv->netdev);
3391                 }
3392         }
3393
3394         for (i = 0; i < retry_num; i++) {
3395                 if (!mwifiex_wmm_lists_empty(adapter) ||
3396                     !mwifiex_bypass_txlist_empty(adapter) ||
3397                     !skb_queue_empty(&adapter->tx_data_q))
3398                         usleep_range(10000, 15000);
3399                 else
3400                         break;
3401         }
3402
3403         if (!wowlan) {
3404                 mwifiex_dbg(adapter, ERROR,
3405                             "None of the WOWLAN triggers enabled\n");
3406                 ret = 0;
3407                 goto done;
3408         }
3409
3410         if (!sta_priv->media_connected && !wowlan->nd_config) {
3411                 mwifiex_dbg(adapter, ERROR,
3412                             "Can not configure WOWLAN in disconnected state\n");
3413                 ret = 0;
3414                 goto done;
3415         }
3416
3417         ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3418         if (ret) {
3419                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3420                 goto done;
3421         }
3422
3423         memset(&hs_cfg, 0, sizeof(hs_cfg));
3424         hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3425
3426         if (wowlan->nd_config) {
3427                 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3428                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3429                 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3430                                                   wowlan->nd_config);
3431         }
3432
3433         if (wowlan->disconnect) {
3434                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3435                 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3436         }
3437
3438         hs_cfg.is_invoke_hostcmd = false;
3439         hs_cfg.gpio = adapter->hs_cfg.gpio;
3440         hs_cfg.gap = adapter->hs_cfg.gap;
3441         ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3442                                     MWIFIEX_SYNC_CMD, &hs_cfg);
3443         if (ret)
3444                 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3445
3446 done:
3447         sta_priv->scan_aborting = false;
3448         return ret;
3449 }
3450
3451 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3452 {
3453         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3454         struct mwifiex_private *priv;
3455         struct mwifiex_ds_wakeup_reason wakeup_reason;
3456         struct cfg80211_wowlan_wakeup wakeup_report;
3457         int i;
3458         bool report_wakeup_reason = true;
3459
3460         for (i = 0; i < adapter->priv_num; i++) {
3461                 priv = adapter->priv[i];
3462                 if (priv && priv->netdev) {
3463                         if (!netif_carrier_ok(priv->netdev))
3464                                 netif_carrier_on(priv->netdev);
3465                         mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
3466                 }
3467         }
3468
3469         if (!wiphy->wowlan_config)
3470                 goto done;
3471
3472         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3473         mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3474                                   &wakeup_reason);
3475         memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3476
3477         wakeup_report.pattern_idx = -1;
3478
3479         switch (wakeup_reason.hs_wakeup_reason) {
3480         case NO_HSWAKEUP_REASON:
3481                 break;
3482         case BCAST_DATA_MATCHED:
3483                 break;
3484         case MCAST_DATA_MATCHED:
3485                 break;
3486         case UCAST_DATA_MATCHED:
3487                 break;
3488         case MASKTABLE_EVENT_MATCHED:
3489                 break;
3490         case NON_MASKABLE_EVENT_MATCHED:
3491                 if (wiphy->wowlan_config->disconnect)
3492                         wakeup_report.disconnect = true;
3493                 if (wiphy->wowlan_config->nd_config)
3494                         wakeup_report.net_detect = adapter->nd_info;
3495                 break;
3496         case NON_MASKABLE_CONDITION_MATCHED:
3497                 break;
3498         case MAGIC_PATTERN_MATCHED:
3499                 if (wiphy->wowlan_config->magic_pkt)
3500                         wakeup_report.magic_pkt = true;
3501                 if (wiphy->wowlan_config->n_patterns)
3502                         wakeup_report.pattern_idx = 1;
3503                 break;
3504         case GTK_REKEY_FAILURE:
3505                 if (wiphy->wowlan_config->gtk_rekey_failure)
3506                         wakeup_report.gtk_rekey_failure = true;
3507                 break;
3508         default:
3509                 report_wakeup_reason = false;
3510                 break;
3511         }
3512
3513         if (report_wakeup_reason)
3514                 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3515                                               GFP_KERNEL);
3516
3517 done:
3518         if (adapter->nd_info) {
3519                 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3520                         kfree(adapter->nd_info->matches[i]);
3521                 kfree(adapter->nd_info);
3522                 adapter->nd_info = NULL;
3523         }
3524
3525         return 0;
3526 }
3527
3528 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3529                                        bool enabled)
3530 {
3531         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3532
3533         device_set_wakeup_enable(adapter->dev, enabled);
3534 }
3535
3536 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3537                                   struct cfg80211_gtk_rekey_data *data)
3538 {
3539         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3540
3541         return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3542                                 HostCmd_ACT_GEN_SET, 0, data, true);
3543 }
3544
3545 #endif
3546
3547 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3548 {
3549         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3550         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3551         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3552
3553         if ((byte_seq[0] & 0x01) &&
3554             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3555                 return PACKET_TYPE_UNICAST;
3556         else if (!memcmp(byte_seq, bc_mac, 4))
3557                 return PACKET_TYPE_BROADCAST;
3558         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3559                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3560                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3561                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3562                 return PACKET_TYPE_MULTICAST;
3563
3564         return 0;
3565 }
3566
3567 static int
3568 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3569                                 struct cfg80211_coalesce_rules *crule,
3570                                 struct mwifiex_coalesce_rule *mrule)
3571 {
3572         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3573         struct filt_field_param *param;
3574         int i;
3575
3576         mrule->max_coalescing_delay = crule->delay;
3577
3578         param = mrule->params;
3579
3580         for (i = 0; i < crule->n_patterns; i++) {
3581                 memset(byte_seq, 0, sizeof(byte_seq));
3582                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3583                                                   byte_seq,
3584                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3585                         mwifiex_dbg(priv->adapter, ERROR,
3586                                     "Pattern not supported\n");
3587                         return -EOPNOTSUPP;
3588                 }
3589
3590                 if (!crule->patterns[i].pkt_offset) {
3591                         u8 pkt_type;
3592
3593                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3594                         if (pkt_type && mrule->pkt_type) {
3595                                 mwifiex_dbg(priv->adapter, ERROR,
3596                                             "Multiple packet types not allowed\n");
3597                                 return -EOPNOTSUPP;
3598                         } else if (pkt_type) {
3599                                 mrule->pkt_type = pkt_type;
3600                                 continue;
3601                         }
3602                 }
3603
3604                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3605                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3606                 else
3607                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3608
3609                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3610                 memcpy(param->operand_byte_stream, byte_seq,
3611                        param->operand_len);
3612                 param->offset = crule->patterns[i].pkt_offset;
3613                 param++;
3614
3615                 mrule->num_of_fields++;
3616         }
3617
3618         if (!mrule->pkt_type) {
3619                 mwifiex_dbg(priv->adapter, ERROR,
3620                             "Packet type can not be determined\n");
3621                 return -EOPNOTSUPP;
3622         }
3623
3624         return 0;
3625 }
3626
3627 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3628                                          struct cfg80211_coalesce *coalesce)
3629 {
3630         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3631         int i, ret;
3632         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3633         struct mwifiex_private *priv =
3634                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3635
3636         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3637         if (!coalesce) {
3638                 mwifiex_dbg(adapter, WARN,
3639                             "Disable coalesce and reset all previous rules\n");
3640                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3641                                         HostCmd_ACT_GEN_SET, 0,
3642                                         &coalesce_cfg, true);
3643         }
3644
3645         coalesce_cfg.num_of_rules = coalesce->n_rules;
3646         for (i = 0; i < coalesce->n_rules; i++) {
3647                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3648                                                       &coalesce_cfg.rule[i]);
3649                 if (ret) {
3650                         mwifiex_dbg(adapter, ERROR,
3651                                     "Recheck the patterns provided for rule %d\n",
3652                                 i + 1);
3653                         return ret;
3654                 }
3655         }
3656
3657         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3658                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3659 }
3660
3661 /* cfg80211 ops handler for tdls_mgmt.
3662  * Function prepares TDLS action frame packets and forwards them to FW
3663  */
3664 static int
3665 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3666                            const u8 *peer, u8 action_code, u8 dialog_token,
3667                            u16 status_code, u32 peer_capability,
3668                            bool initiator, const u8 *extra_ies,
3669                            size_t extra_ies_len)
3670 {
3671         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3672         int ret;
3673
3674         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3675                 return -ENOTSUPP;
3676
3677         /* make sure we are in station mode and connected */
3678         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3679                 return -ENOTSUPP;
3680
3681         switch (action_code) {
3682         case WLAN_TDLS_SETUP_REQUEST:
3683                 mwifiex_dbg(priv->adapter, MSG,
3684                             "Send TDLS Setup Request to %pM status_code=%d\n",
3685                             peer, status_code);
3686                 mwifiex_add_auto_tdls_peer(priv, peer);
3687                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3688                                                    dialog_token, status_code,
3689                                                    extra_ies, extra_ies_len);
3690                 break;
3691         case WLAN_TDLS_SETUP_RESPONSE:
3692                 mwifiex_add_auto_tdls_peer(priv, peer);
3693                 mwifiex_dbg(priv->adapter, MSG,
3694                             "Send TDLS Setup Response to %pM status_code=%d\n",
3695                             peer, status_code);
3696                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3697                                                    dialog_token, status_code,
3698                                                    extra_ies, extra_ies_len);
3699                 break;
3700         case WLAN_TDLS_SETUP_CONFIRM:
3701                 mwifiex_dbg(priv->adapter, MSG,
3702                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3703                             status_code);
3704                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3705                                                    dialog_token, status_code,
3706                                                    extra_ies, extra_ies_len);
3707                 break;
3708         case WLAN_TDLS_TEARDOWN:
3709                 mwifiex_dbg(priv->adapter, MSG,
3710                             "Send TDLS Tear down to %pM\n", peer);
3711                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3712                                                    dialog_token, status_code,
3713                                                    extra_ies, extra_ies_len);
3714                 break;
3715         case WLAN_TDLS_DISCOVERY_REQUEST:
3716                 mwifiex_dbg(priv->adapter, MSG,
3717                             "Send TDLS Discovery Request to %pM\n", peer);
3718                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3719                                                    dialog_token, status_code,
3720                                                    extra_ies, extra_ies_len);
3721                 break;
3722         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3723                 mwifiex_dbg(priv->adapter, MSG,
3724                             "Send TDLS Discovery Response to %pM\n", peer);
3725                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3726                                                    dialog_token, status_code,
3727                                                    extra_ies, extra_ies_len);
3728                 break;
3729         default:
3730                 mwifiex_dbg(priv->adapter, ERROR,
3731                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3732                 ret = -EINVAL;
3733                 break;
3734         }
3735
3736         return ret;
3737 }
3738
3739 static int
3740 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3741                            const u8 *peer, enum nl80211_tdls_operation action)
3742 {
3743         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3744
3745         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3746             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3747                 return -ENOTSUPP;
3748
3749         /* make sure we are in station mode and connected */
3750         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3751                 return -ENOTSUPP;
3752
3753         mwifiex_dbg(priv->adapter, MSG,
3754                     "TDLS peer=%pM, oper=%d\n", peer, action);
3755
3756         switch (action) {
3757         case NL80211_TDLS_ENABLE_LINK:
3758                 action = MWIFIEX_TDLS_ENABLE_LINK;
3759                 break;
3760         case NL80211_TDLS_DISABLE_LINK:
3761                 action = MWIFIEX_TDLS_DISABLE_LINK;
3762                 break;
3763         case NL80211_TDLS_TEARDOWN:
3764                 /* shouldn't happen!*/
3765                 mwifiex_dbg(priv->adapter, ERROR,
3766                             "tdls_oper: teardown from driver not supported\n");
3767                 return -EINVAL;
3768         case NL80211_TDLS_SETUP:
3769                 /* shouldn't happen!*/
3770                 mwifiex_dbg(priv->adapter, ERROR,
3771                             "tdls_oper: setup from driver not supported\n");
3772                 return -EINVAL;
3773         case NL80211_TDLS_DISCOVERY_REQ:
3774                 /* shouldn't happen!*/
3775                 mwifiex_dbg(priv->adapter, ERROR,
3776                             "tdls_oper: discovery from driver not supported\n");
3777                 return -EINVAL;
3778         default:
3779                 mwifiex_dbg(priv->adapter, ERROR,
3780                             "tdls_oper: operation not supported\n");
3781                 return -ENOTSUPP;
3782         }
3783
3784         return mwifiex_tdls_oper(priv, peer, action);
3785 }
3786
3787 static int
3788 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3789                                   const u8 *addr, u8 oper_class,
3790                                   struct cfg80211_chan_def *chandef)
3791 {
3792         struct mwifiex_sta_node *sta_ptr;
3793         unsigned long flags;
3794         u16 chan;
3795         u8 second_chan_offset, band;
3796         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3797
3798         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3799         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3800         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3801
3802         if (!sta_ptr) {
3803                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3804                           __func__, addr);
3805                 return -ENOENT;
3806         }
3807
3808         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3809               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3810                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3811                 return -ENOENT;
3812         }
3813
3814         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3815             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3816                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3817                 return -EALREADY;
3818         }
3819
3820         chan = chandef->chan->hw_value;
3821         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3822         band = chandef->chan->band;
3823         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3824
3825         return 0;
3826 }
3827
3828 static void
3829 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3830                                          struct net_device *dev,
3831                                          const u8 *addr)
3832 {
3833         struct mwifiex_sta_node *sta_ptr;
3834         unsigned long flags;
3835         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3836
3837         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3838         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3839         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3840
3841         if (!sta_ptr) {
3842                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3843                           __func__, addr);
3844         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3845                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3846                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3847                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3848                           addr);
3849         } else
3850                 mwifiex_stop_tdls_cs(priv, addr);
3851 }
3852
3853 static int
3854 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3855                              const u8 *mac, struct station_parameters *params)
3856 {
3857         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3858
3859         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3860                 return -ENOTSUPP;
3861
3862         /* make sure we are in station mode and connected */
3863         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3864                 return -ENOTSUPP;
3865
3866         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3867 }
3868
3869 static int
3870 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3871                                 struct cfg80211_csa_settings *params)
3872 {
3873         struct ieee_types_header *chsw_ie;
3874         struct ieee80211_channel_sw_ie *channel_sw;
3875         int chsw_msec;
3876         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3877
3878         if (priv->adapter->scan_processing) {
3879                 mwifiex_dbg(priv->adapter, ERROR,
3880                             "radar detection: scan in process...\n");
3881                 return -EBUSY;
3882         }
3883
3884         if (priv->wdev.cac_started)
3885                 return -EBUSY;
3886
3887         if (cfg80211_chandef_identical(&params->chandef,
3888                                        &priv->dfs_chandef))
3889                 return -EINVAL;
3890
3891         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3892                                            params->beacon_csa.tail,
3893                                            params->beacon_csa.tail_len);
3894         if (!chsw_ie) {
3895                 mwifiex_dbg(priv->adapter, ERROR,
3896                             "Could not parse channel switch announcement IE\n");
3897                 return -EINVAL;
3898         }
3899
3900         channel_sw = (void *)(chsw_ie + 1);
3901         if (channel_sw->mode) {
3902                 if (netif_carrier_ok(priv->netdev))
3903                         netif_carrier_off(priv->netdev);
3904                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3905         }
3906
3907         if (mwifiex_del_mgmt_ies(priv))
3908                 mwifiex_dbg(priv->adapter, ERROR,
3909                             "Failed to delete mgmt IEs!\n");
3910
3911         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3912                 mwifiex_dbg(priv->adapter, ERROR,
3913                             "%s: setting mgmt ies failed\n", __func__);
3914                 return -EFAULT;
3915         }
3916
3917         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3918         memcpy(&priv->beacon_after, &params->beacon_after,
3919                sizeof(priv->beacon_after));
3920
3921         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3922         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3923                            msecs_to_jiffies(chsw_msec));
3924         return 0;
3925 }
3926
3927 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3928                                         struct wireless_dev *wdev,
3929                                         struct cfg80211_chan_def *chandef)
3930 {
3931         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3932         struct mwifiex_bssdescriptor *curr_bss;
3933         struct ieee80211_channel *chan;
3934         u8 second_chan_offset;
3935         enum nl80211_channel_type chan_type;
3936         enum nl80211_band band;
3937         int freq;
3938         int ret = -ENODATA;
3939
3940         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3941             cfg80211_chandef_valid(&priv->bss_chandef)) {
3942                 *chandef = priv->bss_chandef;
3943                 ret = 0;
3944         } else if (priv->media_connected) {
3945                 curr_bss = &priv->curr_bss_params.bss_descriptor;
3946                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3947                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3948                 chan = ieee80211_get_channel(wiphy, freq);
3949
3950                 if (priv->ht_param_present) {
3951                         second_chan_offset = priv->assoc_resp_ht_param &
3952                                         IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3953                         chan_type = mwifiex_sec_chan_offset_to_chan_type
3954                                                         (second_chan_offset);
3955                         cfg80211_chandef_create(chandef, chan, chan_type);
3956                 } else {
3957                         cfg80211_chandef_create(chandef, chan,
3958                                                 NL80211_CHAN_NO_HT);
3959                 }
3960                 ret = 0;
3961         }
3962
3963         return ret;
3964 }
3965
3966 #ifdef CONFIG_NL80211_TESTMODE
3967
3968 enum mwifiex_tm_attr {
3969         __MWIFIEX_TM_ATTR_INVALID       = 0,
3970         MWIFIEX_TM_ATTR_CMD             = 1,
3971         MWIFIEX_TM_ATTR_DATA            = 2,
3972
3973         /* keep last */
3974         __MWIFIEX_TM_ATTR_AFTER_LAST,
3975         MWIFIEX_TM_ATTR_MAX             = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
3976 };
3977
3978 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
3979         [MWIFIEX_TM_ATTR_CMD]           = { .type = NLA_U32 },
3980         [MWIFIEX_TM_ATTR_DATA]          = { .type = NLA_BINARY,
3981                                             .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
3982 };
3983
3984 enum mwifiex_tm_command {
3985         MWIFIEX_TM_CMD_HOSTCMD  = 0,
3986 };
3987
3988 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
3989                           void *data, int len)
3990 {
3991         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3992         struct mwifiex_ds_misc_cmd *hostcmd;
3993         struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
3994         struct sk_buff *skb;
3995         int err;
3996
3997         if (!priv)
3998                 return -EINVAL;
3999
4000         err = nla_parse(tb, MWIFIEX_TM_ATTR_MAX, data, len,
4001                         mwifiex_tm_policy);
4002         if (err)
4003                 return err;
4004
4005         if (!tb[MWIFIEX_TM_ATTR_CMD])
4006                 return -EINVAL;
4007
4008         switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4009         case MWIFIEX_TM_CMD_HOSTCMD:
4010                 if (!tb[MWIFIEX_TM_ATTR_DATA])
4011                         return -EINVAL;
4012
4013                 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4014                 if (!hostcmd)
4015                         return -ENOMEM;
4016
4017                 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4018                 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4019                        hostcmd->len);
4020
4021                 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4022                         dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4023                         return -EFAULT;
4024                 }
4025
4026                 /* process hostcmd response*/
4027                 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4028                 if (!skb)
4029                         return -ENOMEM;
4030                 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4031                               hostcmd->len, hostcmd->cmd);
4032                 if (err) {
4033                         kfree_skb(skb);
4034                         return -EMSGSIZE;
4035                 }
4036
4037                 err = cfg80211_testmode_reply(skb);
4038                 kfree(hostcmd);
4039                 return err;
4040         default:
4041                 return -EOPNOTSUPP;
4042         }
4043 }
4044 #endif
4045
4046 static int
4047 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4048                                        struct net_device *dev,
4049                                        struct cfg80211_chan_def *chandef,
4050                                        u32 cac_time_ms)
4051 {
4052         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4053         struct mwifiex_radar_params radar_params;
4054
4055         if (priv->adapter->scan_processing) {
4056                 mwifiex_dbg(priv->adapter, ERROR,
4057                             "radar detection: scan already in process...\n");
4058                 return -EBUSY;
4059         }
4060
4061         if (!mwifiex_is_11h_active(priv)) {
4062                 mwifiex_dbg(priv->adapter, INFO,
4063                             "Enable 11h extensions in FW\n");
4064                 if (mwifiex_11h_activate(priv, true)) {
4065                         mwifiex_dbg(priv->adapter, ERROR,
4066                                     "Failed to activate 11h extensions!!");
4067                         return -1;
4068                 }
4069                 priv->state_11h.is_11h_active = true;
4070         }
4071
4072         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4073         radar_params.chandef = chandef;
4074         radar_params.cac_time_ms = cac_time_ms;
4075
4076         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4077
4078         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4079                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4080                 return -1;
4081
4082         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4083                            msecs_to_jiffies(cac_time_ms));
4084         return 0;
4085 }
4086
4087 static int
4088 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4089                                 const u8 *mac,
4090                                 struct station_parameters *params)
4091 {
4092         int ret;
4093         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4094
4095         /* we support change_station handler only for TDLS peers*/
4096         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4097                 return -ENOTSUPP;
4098
4099         /* make sure we are in station mode and connected */
4100         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4101                 return -ENOTSUPP;
4102
4103         priv->sta_params = params;
4104
4105         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4106         priv->sta_params = NULL;
4107
4108         return ret;
4109 }
4110
4111 /* station cfg80211 operations */
4112 static struct cfg80211_ops mwifiex_cfg80211_ops = {
4113         .add_virtual_intf = mwifiex_add_virtual_intf,
4114         .del_virtual_intf = mwifiex_del_virtual_intf,
4115         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4116         .scan = mwifiex_cfg80211_scan,
4117         .connect = mwifiex_cfg80211_connect,
4118         .disconnect = mwifiex_cfg80211_disconnect,
4119         .get_station = mwifiex_cfg80211_get_station,
4120         .dump_station = mwifiex_cfg80211_dump_station,
4121         .dump_survey = mwifiex_cfg80211_dump_survey,
4122         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4123         .join_ibss = mwifiex_cfg80211_join_ibss,
4124         .leave_ibss = mwifiex_cfg80211_leave_ibss,
4125         .add_key = mwifiex_cfg80211_add_key,
4126         .del_key = mwifiex_cfg80211_del_key,
4127         .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4128         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4129         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
4130         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4131         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4132         .set_default_key = mwifiex_cfg80211_set_default_key,
4133         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4134         .set_tx_power = mwifiex_cfg80211_set_tx_power,
4135         .get_tx_power = mwifiex_cfg80211_get_tx_power,
4136         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4137         .start_ap = mwifiex_cfg80211_start_ap,
4138         .stop_ap = mwifiex_cfg80211_stop_ap,
4139         .change_beacon = mwifiex_cfg80211_change_beacon,
4140         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4141         .set_antenna = mwifiex_cfg80211_set_antenna,
4142         .get_antenna = mwifiex_cfg80211_get_antenna,
4143         .del_station = mwifiex_cfg80211_del_station,
4144         .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4145         .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4146 #ifdef CONFIG_PM
4147         .suspend = mwifiex_cfg80211_suspend,
4148         .resume = mwifiex_cfg80211_resume,
4149         .set_wakeup = mwifiex_cfg80211_set_wakeup,
4150         .set_rekey_data = mwifiex_set_rekey_data,
4151 #endif
4152         .set_coalesce = mwifiex_cfg80211_set_coalesce,
4153         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4154         .tdls_oper = mwifiex_cfg80211_tdls_oper,
4155         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4156         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4157         .add_station = mwifiex_cfg80211_add_station,
4158         .change_station = mwifiex_cfg80211_change_station,
4159         CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4160         .get_channel = mwifiex_cfg80211_get_channel,
4161         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4162         .channel_switch = mwifiex_cfg80211_channel_switch,
4163 };
4164
4165 #ifdef CONFIG_PM
4166 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4167         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4168                 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4169                 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4170         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4171         .pattern_min_len = 1,
4172         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4173         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4174         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4175 };
4176 #endif
4177
4178 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4179 {
4180         if (!alpha2 || strlen(alpha2) != 2)
4181                 return false;
4182
4183         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4184                 return true;
4185
4186         return false;
4187 }
4188
4189 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4190         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4191         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4192         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4193         .pattern_min_len = 1,
4194         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4195         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4196 };
4197
4198 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4199 {
4200         u32 n_channels_bg, n_channels_a = 0;
4201
4202         n_channels_bg = mwifiex_band_2ghz.n_channels;
4203
4204         if (adapter->config_bands & BAND_A)
4205                 n_channels_a = mwifiex_band_5ghz.n_channels;
4206
4207         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
4208         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
4209                                       adapter->num_in_chan_stats);
4210
4211         if (!adapter->chan_stats)
4212                 return -ENOMEM;
4213
4214         return 0;
4215 }
4216
4217 /*
4218  * This function registers the device with CFG802.11 subsystem.
4219  *
4220  * The function creates the wireless device/wiphy, populates it with
4221  * default parameters and handler function pointers, and finally
4222  * registers the device.
4223  */
4224
4225 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4226 {
4227         int ret;
4228         void *wdev_priv;
4229         struct wiphy *wiphy;
4230         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4231         u8 *country_code;
4232         u32 thr, retry;
4233
4234         /* create a new wiphy for use with cfg80211 */
4235         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4236                           sizeof(struct mwifiex_adapter *));
4237         if (!wiphy) {
4238                 mwifiex_dbg(adapter, ERROR,
4239                             "%s: creating new wiphy\n", __func__);
4240                 return -ENOMEM;
4241         }
4242         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4243         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4244         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4245         wiphy->max_remain_on_channel_duration = 5000;
4246         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4247                                  BIT(NL80211_IFTYPE_ADHOC) |
4248                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
4249                                  BIT(NL80211_IFTYPE_P2P_GO) |
4250                                  BIT(NL80211_IFTYPE_AP);
4251
4252         wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4253         if (adapter->config_bands & BAND_A)
4254                 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4255         else
4256                 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4257
4258         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4259                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4260         else if (adapter->is_hw_11ac_capable)
4261                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4262         else
4263                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4264         wiphy->n_iface_combinations = 1;
4265
4266         /* Initialize cipher suits */
4267         wiphy->cipher_suites = mwifiex_cipher_suites;
4268         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4269
4270         if (adapter->regd) {
4271                 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4272                                            REGULATORY_DISABLE_BEACON_HINTS |
4273                                            REGULATORY_COUNTRY_IE_IGNORE;
4274                 wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4275         }
4276
4277         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4278         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4279         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4280                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4281                         WIPHY_FLAG_AP_UAPSD |
4282                         WIPHY_FLAG_SUPPORTS_SCHED_SCAN |
4283                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4284                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4285                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
4286
4287         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4288                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4289                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4290
4291 #ifdef CONFIG_PM
4292         wiphy->wowlan = &mwifiex_wowlan_support;
4293 #endif
4294
4295         wiphy->coalesce = &mwifiex_coalesce_support;
4296
4297         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4298                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4299                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4300
4301         wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4302         wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4303         wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4304
4305         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4306         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4307
4308         wiphy->features |= NL80211_FEATURE_HT_IBSS |
4309                            NL80211_FEATURE_INACTIVITY_TIMER |
4310                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
4311                            NL80211_FEATURE_NEED_OBSS_SCAN |
4312                            NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4313                            NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4314                            NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4315
4316         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4317                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4318
4319         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4320                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4321
4322         /* Reserve space for mwifiex specific private data for BSS */
4323         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4324
4325         wiphy->reg_notifier = mwifiex_reg_notifier;
4326
4327         /* Set struct mwifiex_adapter pointer in wiphy_priv */
4328         wdev_priv = wiphy_priv(wiphy);
4329         *(unsigned long *)wdev_priv = (unsigned long)adapter;
4330
4331         set_wiphy_dev(wiphy, priv->adapter->dev);
4332
4333         ret = wiphy_register(wiphy);
4334         if (ret < 0) {
4335                 mwifiex_dbg(adapter, ERROR,
4336                             "%s: wiphy_register failed: %d\n", __func__, ret);
4337                 wiphy_free(wiphy);
4338                 return ret;
4339         }
4340
4341         if (!adapter->regd) {
4342                 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4343                         mwifiex_dbg(adapter, INFO,
4344                                     "driver hint alpha2: %2.2s\n", reg_alpha2);
4345                         regulatory_hint(wiphy, reg_alpha2);
4346                 } else {
4347                         if (adapter->region_code == 0x00) {
4348                                 mwifiex_dbg(adapter, WARN,
4349                                             "Ignore world regulatory domain\n");
4350                         } else {
4351                                 wiphy->regulatory_flags |=
4352                                         REGULATORY_DISABLE_BEACON_HINTS |
4353                                         REGULATORY_COUNTRY_IE_IGNORE;
4354                                 country_code =
4355                                         mwifiex_11d_code_2_region(
4356                                                 adapter->region_code);
4357                                 if (country_code &&
4358                                     regulatory_hint(wiphy, country_code))
4359                                         mwifiex_dbg(priv->adapter, ERROR,
4360                                                     "regulatory_hint() failed\n");
4361                         }
4362                 }
4363         }
4364
4365         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4366                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4367         wiphy->frag_threshold = thr;
4368         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4369                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4370         wiphy->rts_threshold = thr;
4371         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4372                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4373         wiphy->retry_short = (u8) retry;
4374         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4375                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4376         wiphy->retry_long = (u8) retry;
4377
4378         adapter->wiphy = wiphy;
4379         return ret;
4380 }