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 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
 598 {
 599         struct ieee80211_supported_band *sband;
 600         struct ieee80211_channel *chan;
 601         unsigned int i;
 602
 603         if (!wiphy->bands[NL80211_BAND_5GHZ])
 604                 return;
 605         sband = wiphy->bands[NL80211_BAND_5GHZ];
 606
 607         for (i = 0; i < sband->n_channels; i++) {
 608                 chan = &sband->channels[i];
 609                 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
 610                     (chan->flags & IEEE80211_CHAN_RADAR))
 611                         chan->flags |= IEEE80211_CHAN_NO_IR;
 612         }
 613 }
 614
 615 /*
 616  * CFG802.11 regulatory domain callback function.
 617  *
 618  * This function is called when the regulatory domain is changed due to the
 619  * following reasons -
 620  *      - Set by driver
 621  *      - Set by system core
 622  *      - Set by user
 623  *      - Set bt Country IE
 624  */
 625 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 626                                  struct regulatory_request *request)
 627 {
 628         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 629         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 630                                                         MWIFIEX_BSS_ROLE_ANY);
 631         mwifiex_dbg(adapter, INFO,
 632                     "info: cfg80211 regulatory domain callback for %c%c\n",
 633                     request->alpha2[0], request->alpha2[1]);
 634         mwifiex_reg_apply_radar_flags(wiphy);
 635
 636         switch (request->initiator) {
 637         case NL80211_REGDOM_SET_BY_DRIVER:
 638         case NL80211_REGDOM_SET_BY_CORE:
 639         case NL80211_REGDOM_SET_BY_USER:
 640         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 641                 break;
 642         default:
 643                 mwifiex_dbg(adapter, ERROR,
 644                             "unknown regdom initiator: %d\n",
 645                             request->initiator);
 646                 return;
 647         }
 648
 649         /* Don't send world or same regdom info to firmware */
 650         if (strncmp(request->alpha2, "00", 2) &&
 651             strncmp(request->alpha2, adapter->country_code,
 652                     sizeof(request->alpha2))) {
 653                 memcpy(adapter->country_code, request->alpha2,
 654                        sizeof(request->alpha2));
 655                 mwifiex_send_domain_info_cmd_fw(wiphy);
 656                 mwifiex_dnld_txpwr_table(priv);
 657         }
 658 }
 659
 660 /*
 661  * This function sets the fragmentation threshold.
 662  *
 663  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 664  * and MWIFIEX_FRAG_MAX_VALUE.
 665  */
 666 static int
 667 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 668 {
 669         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 670             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 671                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 672
 673         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 674                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 675                                 &frag_thr, true);
 676 }
 677
 678 /*
 679  * This function sets the RTS threshold.
 680
 681  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 682  * and MWIFIEX_RTS_MAX_VALUE.
 683  */
 684 static int
 685 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 686 {
 687         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 688                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 689
 690         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 691                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 692                                 &rts_thr, true);
 693 }
 694
 695 /*
 696  * CFG802.11 operation handler to set wiphy parameters.
 697  *
 698  * This function can be used to set the RTS threshold and the
 699  * Fragmentation threshold of the driver.
 700  */
 701 static int
 702 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 703 {
 704         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 705         struct mwifiex_private *priv;
 706         struct mwifiex_uap_bss_param *bss_cfg;
 707         int ret;
 708
 709         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 710
 711         switch (priv->bss_role) {
 712         case MWIFIEX_BSS_ROLE_UAP:
 713                 if (priv->bss_started) {
 714                         mwifiex_dbg(adapter, ERROR,
 715                                     "cannot change wiphy params when bss started");
 716                         return -EINVAL;
 717                 }
 718
 719                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 720                 if (!bss_cfg)
 721                         return -ENOMEM;
 722
 723                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 724
 725                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 726                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 727                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 728                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 729                 if (changed & WIPHY_PARAM_RETRY_LONG)
 730                         bss_cfg->retry_limit = wiphy->retry_long;
 731
 732                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 733                                        HostCmd_ACT_GEN_SET,
 734                                        UAP_BSS_PARAMS_I, bss_cfg,
 735                                        false);
 736
 737                 kfree(bss_cfg);
 738                 if (ret) {
 739                         mwifiex_dbg(adapter, ERROR,
 740                                     "Failed to set wiphy phy params\n");
 741                         return ret;
 742                 }
 743                 break;
 744
 745         case MWIFIEX_BSS_ROLE_STA:
 746                 if (priv->media_connected) {
 747                         mwifiex_dbg(adapter, ERROR,
 748                                     "cannot change wiphy params when connected");
 749                         return -EINVAL;
 750                 }
 751                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 752                         ret = mwifiex_set_rts(priv,
 753                                               wiphy->rts_threshold);
 754                         if (ret)
 755                                 return ret;
 756                 }
 757                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 758                         ret = mwifiex_set_frag(priv,
 759                                                wiphy->frag_threshold);
 760                         if (ret)
 761                                 return ret;
 762                 }
 763                 break;
 764         }
 765
 766         return 0;
 767 }
 768
 769 static int
 770 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 771 {
 772         u16 mode = P2P_MODE_DISABLE;
 773
 774         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 775                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 776                 return -1;
 777
 778         return 0;
 779 }
 780
 781 /*
 782  * This function initializes the functionalities for P2P client.
 783  * The P2P client initialization sequence is:
 784  * disable -> device -> client
 785  */
 786 static int
 787 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 788 {
 789         u16 mode;
 790
 791         if (mwifiex_cfg80211_deinit_p2p(priv))
 792                 return -1;
 793
 794         mode = P2P_MODE_DEVICE;
 795         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 796                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 797                 return -1;
 798
 799         mode = P2P_MODE_CLIENT;
 800         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 801                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 802                 return -1;
 803
 804         return 0;
 805 }
 806
 807 /*
 808  * This function initializes the functionalities for P2P GO.
 809  * The P2P GO initialization sequence is:
 810  * disable -> device -> GO
 811  */
 812 static int
 813 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 814 {
 815         u16 mode;
 816
 817         if (mwifiex_cfg80211_deinit_p2p(priv))
 818                 return -1;
 819
 820         mode = P2P_MODE_DEVICE;
 821         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 822                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 823                 return -1;
 824
 825         mode = P2P_MODE_GO;
 826         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 827                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 828                 return -1;
 829
 830         return 0;
 831 }
 832
 833 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 834 {
 835         struct mwifiex_adapter *adapter = priv->adapter;
 836         unsigned long flags;
 837
 838         priv->mgmt_frame_mask = 0;
 839         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 840                              HostCmd_ACT_GEN_SET, 0,
 841                              &priv->mgmt_frame_mask, false)) {
 842                 mwifiex_dbg(adapter, ERROR,
 843                             "could not unregister mgmt frame rx\n");
 844                 return -1;
 845         }
 846
 847         mwifiex_deauthenticate(priv, NULL);
 848
 849         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 850         adapter->main_locked = true;
 851         if (adapter->mwifiex_processing) {
 852                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 853                 flush_workqueue(adapter->workqueue);
 854         } else {
 855                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 856         }
 857
 858         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 859         adapter->rx_locked = true;
 860         if (adapter->rx_processing) {
 861                 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 862                 flush_workqueue(adapter->rx_workqueue);
 863         } else {
 864         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 865         }
 866
 867         mwifiex_free_priv(priv);
 868         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 869         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 870         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 871
 872         return 0;
 873 }
 874
 875 static int
 876 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 877                              struct net_device *dev,
 878                              enum nl80211_iftype type)
 879 {
 880         struct mwifiex_adapter *adapter = priv->adapter;
 881         unsigned long flags;
 882
 883         mwifiex_init_priv(priv);
 884
 885         priv->bss_mode = type;
 886         priv->wdev.iftype = type;
 887
 888         mwifiex_init_priv_params(priv, priv->netdev);
 889         priv->bss_started = 0;
 890
 891         switch (type) {
 892         case NL80211_IFTYPE_STATION:
 893         case NL80211_IFTYPE_ADHOC:
 894                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 895                          MWIFIEX_BSS_TYPE_STA);
 896                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 897                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 898                 break;
 899         case NL80211_IFTYPE_P2P_CLIENT:
 900                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 901                          MWIFIEX_BSS_TYPE_P2P);
 902                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 903                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 904                 break;
 905         case NL80211_IFTYPE_P2P_GO:
 906                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 907                          MWIFIEX_BSS_TYPE_P2P);
 908                 priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 909                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 910                 break;
 911         case NL80211_IFTYPE_AP:
 912                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 913                          MWIFIEX_BSS_TYPE_UAP);
 914                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 915                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 916                 break;
 917         default:
 918                 mwifiex_dbg(adapter, ERROR,
 919                             "%s: changing to %d not supported\n",
 920                             dev->name, type);
 921                 return -EOPNOTSUPP;
 922         }
 923
 924         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 925         adapter->main_locked = false;
 926         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 927
 928         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 929         adapter->rx_locked = false;
 930         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 931
 932         return 0;
 933 }
 934
 935 static int
 936 mwifiex_change_vif_to_p2p(struct net_device *dev,
 937                           enum nl80211_iftype curr_iftype,
 938                           enum nl80211_iftype type,
 939                           struct vif_params *params)
 940 {
 941         struct mwifiex_private *priv;
 942         struct mwifiex_adapter *adapter;
 943
 944         priv = mwifiex_netdev_get_priv(dev);
 945
 946         if (!priv)
 947                 return -1;
 948
 949         adapter = priv->adapter;
 950
 951         if (adapter->curr_iface_comb.p2p_intf ==
 952             adapter->iface_limit.p2p_intf) {
 953                 mwifiex_dbg(adapter, ERROR,
 954                             "cannot create multiple P2P ifaces\n");
 955                 return -1;
 956         }
 957
 958         mwifiex_dbg(adapter, INFO,
 959                     "%s: changing role to p2p\n", dev->name);
 960
 961         if (mwifiex_deinit_priv_params(priv))
 962                 return -1;
 963         if (mwifiex_init_new_priv_params(priv, dev, type))
 964                 return -1;
 965
 966         switch (type) {
 967         case NL80211_IFTYPE_P2P_CLIENT:
 968                 if (mwifiex_cfg80211_init_p2p_client(priv))
 969                         return -EFAULT;
 970                 break;
 971         case NL80211_IFTYPE_P2P_GO:
 972                 if (mwifiex_cfg80211_init_p2p_go(priv))
 973                         return -EFAULT;
 974                 break;
 975         default:
 976                 mwifiex_dbg(adapter, ERROR,
 977                             "%s: changing to %d not supported\n",
 978                             dev->name, type);
 979                 return -EOPNOTSUPP;
 980         }
 981
 982         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 983                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 984                 return -1;
 985
 986         if (mwifiex_sta_init_cmd(priv, false, false))
 987                 return -1;
 988
 989         switch (curr_iftype) {
 990         case NL80211_IFTYPE_STATION:
 991         case NL80211_IFTYPE_ADHOC:
 992                 adapter->curr_iface_comb.sta_intf--;
 993                 break;
 994         case NL80211_IFTYPE_AP:
 995                 adapter->curr_iface_comb.uap_intf--;
 996                 break;
 997         default:
 998                 break;
 999         }
1000
1001         adapter->curr_iface_comb.p2p_intf++;
1002         dev->ieee80211_ptr->iftype = type;
1003
1004         return 0;
1005 }
1006
1007 static int
1008 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1009                                 enum nl80211_iftype curr_iftype,
1010                                 enum nl80211_iftype type,
1011                                 struct vif_params *params)
1012 {
1013         struct mwifiex_private *priv;
1014         struct mwifiex_adapter *adapter;
1015
1016         priv = mwifiex_netdev_get_priv(dev);
1017
1018         if (!priv)
1019                 return -1;
1020
1021         adapter = priv->adapter;
1022
1023         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
1024              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
1025             (adapter->curr_iface_comb.sta_intf ==
1026              adapter->iface_limit.sta_intf)) {
1027                 mwifiex_dbg(adapter, ERROR,
1028                             "cannot create multiple station/adhoc ifaces\n");
1029                 return -1;
1030         }
1031
1032         if (type == NL80211_IFTYPE_STATION)
1033                 mwifiex_dbg(adapter, INFO,
1034                             "%s: changing role to station\n", dev->name);
1035         else
1036                 mwifiex_dbg(adapter, INFO,
1037                             "%s: changing role to adhoc\n", dev->name);
1038
1039         if (mwifiex_deinit_priv_params(priv))
1040                 return -1;
1041         if (mwifiex_init_new_priv_params(priv, dev, type))
1042                 return -1;
1043         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1044                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1045                 return -1;
1046         if (mwifiex_sta_init_cmd(priv, false, false))
1047                 return -1;
1048
1049         switch (curr_iftype) {
1050         case NL80211_IFTYPE_P2P_CLIENT:
1051         case NL80211_IFTYPE_P2P_GO:
1052                 adapter->curr_iface_comb.p2p_intf--;
1053                 break;
1054         case NL80211_IFTYPE_AP:
1055                 adapter->curr_iface_comb.uap_intf--;
1056                 break;
1057         default:
1058                 break;
1059         }
1060
1061         adapter->curr_iface_comb.sta_intf++;
1062         dev->ieee80211_ptr->iftype = type;
1063         return 0;
1064 }
1065
1066 static int
1067 mwifiex_change_vif_to_ap(struct net_device *dev,
1068                          enum nl80211_iftype curr_iftype,
1069                          enum nl80211_iftype type,
1070                          struct vif_params *params)
1071 {
1072         struct mwifiex_private *priv;
1073         struct mwifiex_adapter *adapter;
1074
1075         priv = mwifiex_netdev_get_priv(dev);
1076
1077         if (!priv)
1078                 return -1;
1079
1080         adapter = priv->adapter;
1081
1082         if (adapter->curr_iface_comb.uap_intf ==
1083             adapter->iface_limit.uap_intf) {
1084                 mwifiex_dbg(adapter, ERROR,
1085                             "cannot create multiple AP ifaces\n");
1086                 return -1;
1087         }
1088
1089         mwifiex_dbg(adapter, INFO,
1090                     "%s: changing role to AP\n", dev->name);
1091
1092         if (mwifiex_deinit_priv_params(priv))
1093                 return -1;
1094         if (mwifiex_init_new_priv_params(priv, dev, type))
1095                 return -1;
1096         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1097                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1098                 return -1;
1099         if (mwifiex_sta_init_cmd(priv, false, false))
1100                 return -1;
1101
1102         switch (curr_iftype) {
1103         case NL80211_IFTYPE_P2P_CLIENT:
1104         case NL80211_IFTYPE_P2P_GO:
1105                 adapter->curr_iface_comb.p2p_intf--;
1106                 break;
1107         case NL80211_IFTYPE_STATION:
1108         case NL80211_IFTYPE_ADHOC:
1109                 adapter->curr_iface_comb.sta_intf--;
1110                 break;
1111         default:
1112                 break;
1113         }
1114
1115         adapter->curr_iface_comb.uap_intf++;
1116         dev->ieee80211_ptr->iftype = type;
1117         return 0;
1118 }
1119 /*
1120  * CFG802.11 operation handler to change interface type.
1121  */
1122 static int
1123 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1124                                      struct net_device *dev,
1125                                      enum nl80211_iftype type,
1126                                      struct vif_params *params)
1127 {
1128         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1129         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1130
1131         switch (curr_iftype) {
1132         case NL80211_IFTYPE_ADHOC:
1133                 switch (type) {
1134                 case NL80211_IFTYPE_STATION:
1135                         priv->bss_mode = type;
1136                         priv->sec_info.authentication_mode =
1137                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1138                         dev->ieee80211_ptr->iftype = type;
1139                         mwifiex_deauthenticate(priv, NULL);
1140                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1141                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1142                                                 true);
1143                 case NL80211_IFTYPE_P2P_CLIENT:
1144                 case NL80211_IFTYPE_P2P_GO:
1145                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1146                                                          type, params);
1147                 case NL80211_IFTYPE_AP:
1148                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1149                                                         params);
1150                 case NL80211_IFTYPE_UNSPECIFIED:
1151                         mwifiex_dbg(priv->adapter, INFO,
1152                                     "%s: kept type as IBSS\n", dev->name);
1153                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1154                         return 0;
1155                 default:
1156                         mwifiex_dbg(priv->adapter, ERROR,
1157                                     "%s: changing to %d not supported\n",
1158                                     dev->name, type);
1159                         return -EOPNOTSUPP;
1160                 }
1161                 break;
1162         case NL80211_IFTYPE_STATION:
1163                 switch (type) {
1164                 case NL80211_IFTYPE_ADHOC:
1165                         priv->bss_mode = type;
1166                         priv->sec_info.authentication_mode =
1167                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1168                         dev->ieee80211_ptr->iftype = type;
1169                         mwifiex_deauthenticate(priv, NULL);
1170                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1171                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1172                                                 true);
1173                 case NL80211_IFTYPE_P2P_CLIENT:
1174                 case NL80211_IFTYPE_P2P_GO:
1175                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1176                                                          type, params);
1177                 case NL80211_IFTYPE_AP:
1178                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1179                                                         params);
1180                 case NL80211_IFTYPE_UNSPECIFIED:
1181                         mwifiex_dbg(priv->adapter, INFO,
1182                                     "%s: kept type as STA\n", dev->name);
1183                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1184                         return 0;
1185                 default:
1186                         mwifiex_dbg(priv->adapter, ERROR,
1187                                     "%s: changing to %d not supported\n",
1188                                     dev->name, type);
1189                         return -EOPNOTSUPP;
1190                 }
1191                 break;
1192         case NL80211_IFTYPE_AP:
1193                 switch (type) {
1194                 case NL80211_IFTYPE_ADHOC:
1195                 case NL80211_IFTYPE_STATION:
1196                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1197                                                                type, params);
1198                         break;
1199                 case NL80211_IFTYPE_P2P_CLIENT:
1200                 case NL80211_IFTYPE_P2P_GO:
1201                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1202                                                          type, params);
1203                 case NL80211_IFTYPE_UNSPECIFIED:
1204                         mwifiex_dbg(priv->adapter, INFO,
1205                                     "%s: kept type as AP\n", dev->name);
1206                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1207                         return 0;
1208                 default:
1209                         mwifiex_dbg(priv->adapter, ERROR,
1210                                     "%s: changing to %d not supported\n",
1211                                     dev->name, type);
1212                         return -EOPNOTSUPP;
1213                 }
1214                 break;
1215         case NL80211_IFTYPE_P2P_CLIENT:
1216         case NL80211_IFTYPE_P2P_GO:
1217                 switch (type) {
1218                 case NL80211_IFTYPE_STATION:
1219                         if (mwifiex_cfg80211_deinit_p2p(priv))
1220                                 return -EFAULT;
1221                         priv->adapter->curr_iface_comb.p2p_intf--;
1222                         priv->adapter->curr_iface_comb.sta_intf++;
1223                         dev->ieee80211_ptr->iftype = type;
1224                         if (mwifiex_deinit_priv_params(priv))
1225                                 return -1;
1226                         if (mwifiex_init_new_priv_params(priv, dev, type))
1227                                 return -1;
1228                         if (mwifiex_sta_init_cmd(priv, false, false))
1229                                 return -1;
1230                         break;
1231                 case NL80211_IFTYPE_ADHOC:
1232                         if (mwifiex_cfg80211_deinit_p2p(priv))
1233                                 return -EFAULT;
1234                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1235                                                                type, params);
1236                         break;
1237                 case NL80211_IFTYPE_AP:
1238                         if (mwifiex_cfg80211_deinit_p2p(priv))
1239                                 return -EFAULT;
1240                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1241                                                         params);
1242                 case NL80211_IFTYPE_UNSPECIFIED:
1243                         mwifiex_dbg(priv->adapter, INFO,
1244                                     "%s: kept type as P2P\n", dev->name);
1245                 case NL80211_IFTYPE_P2P_CLIENT:
1246                 case NL80211_IFTYPE_P2P_GO:
1247                         return 0;
1248                 default:
1249                         mwifiex_dbg(priv->adapter, ERROR,
1250                                     "%s: changing to %d not supported\n",
1251                                     dev->name, type);
1252                         return -EOPNOTSUPP;
1253                 }
1254                 break;
1255         default:
1256                 mwifiex_dbg(priv->adapter, ERROR,
1257                             "%s: unknown iftype: %d\n",
1258                             dev->name, dev->ieee80211_ptr->iftype);
1259                 return -EOPNOTSUPP;
1260         }
1261
1262
1263         return 0;
1264 }
1265
1266 static void
1267 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1268                      struct rate_info *rate)
1269 {
1270         struct mwifiex_adapter *adapter = priv->adapter;
1271
1272         if (adapter->is_hw_11ac_capable) {
1273                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1274                 if (tx_htinfo & BIT(0)) {
1275                         /* HT */
1276                         rate->mcs = priv->tx_rate;
1277                         rate->flags |= RATE_INFO_FLAGS_MCS;
1278                 }
1279                 if (tx_htinfo & BIT(1)) {
1280                         /* VHT */
1281                         rate->mcs = priv->tx_rate & 0x0F;
1282                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1283                 }
1284
1285                 if (tx_htinfo & (BIT(1) | BIT(0))) {
1286                         /* HT or VHT */
1287                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
1288                         case 0:
1289                                 rate->bw = RATE_INFO_BW_20;
1290                                 break;
1291                         case (BIT(2)):
1292                                 rate->bw = RATE_INFO_BW_40;
1293                                 break;
1294                         case (BIT(3)):
1295                                 rate->bw = RATE_INFO_BW_80;
1296                                 break;
1297                         case (BIT(3) | BIT(2)):
1298                                 rate->bw = RATE_INFO_BW_160;
1299                                 break;
1300                         }
1301
1302                         if (tx_htinfo & BIT(4))
1303                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1304
1305                         if ((priv->tx_rate >> 4) == 1)
1306                                 rate->nss = 2;
1307                         else
1308                                 rate->nss = 1;
1309                 }
1310         } else {
1311                 /*
1312                  * Bit 0 in tx_htinfo indicates that current Tx rate
1313                  * is 11n rate. Valid MCS index values for us are 0 to 15.
1314                  */
1315                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1316                         rate->mcs = priv->tx_rate;
1317                         rate->flags |= RATE_INFO_FLAGS_MCS;
1318                         rate->bw = RATE_INFO_BW_20;
1319                         if (tx_htinfo & BIT(1))
1320                                 rate->bw = RATE_INFO_BW_40;
1321                         if (tx_htinfo & BIT(2))
1322                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1323                 }
1324         }
1325 }
1326
1327 /*
1328  * This function dumps the station information on a buffer.
1329  *
1330  * The following information are shown -
1331  *      - Total bytes transmitted
1332  *      - Total bytes received
1333  *      - Total packets transmitted
1334  *      - Total packets received
1335  *      - Signal quality level
1336  *      - Transmission rate
1337  */
1338 static int
1339 mwifiex_dump_station_info(struct mwifiex_private *priv,
1340                           struct mwifiex_sta_node *node,
1341                           struct station_info *sinfo)
1342 {
1343         u32 rate;
1344
1345         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1346                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1347                         BIT(NL80211_STA_INFO_TX_BITRATE) |
1348                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1349
1350         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1351                 if (!node)
1352                         return -ENOENT;
1353
1354                 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1355                                 BIT(NL80211_STA_INFO_TX_FAILED);
1356                 sinfo->inactive_time =
1357                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1358
1359                 sinfo->signal = node->stats.rssi;
1360                 sinfo->signal_avg = node->stats.rssi;
1361                 sinfo->rx_bytes = node->stats.rx_bytes;
1362                 sinfo->tx_bytes = node->stats.tx_bytes;
1363                 sinfo->rx_packets = node->stats.rx_packets;
1364                 sinfo->tx_packets = node->stats.tx_packets;
1365                 sinfo->tx_failed = node->stats.tx_failed;
1366
1367                 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1368                                      &sinfo->txrate);
1369                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1370
1371                 return 0;
1372         }
1373
1374         /* Get signal information from the firmware */
1375         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1376                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1377                 mwifiex_dbg(priv->adapter, ERROR,
1378                             "failed to get signal information\n");
1379                 return -EFAULT;
1380         }
1381
1382         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1383                 mwifiex_dbg(priv->adapter, ERROR,
1384                             "getting data rate error\n");
1385                 return -EFAULT;
1386         }
1387
1388         /* Get DTIM period information from firmware */
1389         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1390                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1391                          &priv->dtim_period, true);
1392
1393         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1394
1395         sinfo->signal_avg = priv->bcn_rssi_avg;
1396         sinfo->rx_bytes = priv->stats.rx_bytes;
1397         sinfo->tx_bytes = priv->stats.tx_bytes;
1398         sinfo->rx_packets = priv->stats.rx_packets;
1399         sinfo->tx_packets = priv->stats.tx_packets;
1400         sinfo->signal = priv->bcn_rssi_avg;
1401         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1402         sinfo->txrate.legacy = rate * 5;
1403
1404         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1405                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1406                 sinfo->bss_param.flags = 0;
1407                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1408                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1409                         sinfo->bss_param.flags |=
1410                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1411                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1412                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1413                         sinfo->bss_param.flags |=
1414                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1415                 sinfo->bss_param.dtim_period = priv->dtim_period;
1416                 sinfo->bss_param.beacon_interval =
1417                         priv->curr_bss_params.bss_descriptor.beacon_period;
1418         }
1419
1420         return 0;
1421 }
1422
1423 /*
1424  * CFG802.11 operation handler to get station information.
1425  *
1426  * This function only works in connected mode, and dumps the
1427  * requested station information, if available.
1428  */
1429 static int
1430 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1431                              const u8 *mac, struct station_info *sinfo)
1432 {
1433         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1434
1435         if (!priv->media_connected)
1436                 return -ENOENT;
1437         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1438                 return -ENOENT;
1439
1440         return mwifiex_dump_station_info(priv, NULL, sinfo);
1441 }
1442
1443 /*
1444  * CFG802.11 operation handler to dump station information.
1445  */
1446 static int
1447 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1448                               int idx, u8 *mac, struct station_info *sinfo)
1449 {
1450         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1451         static struct mwifiex_sta_node *node;
1452
1453         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1454             priv->media_connected && idx == 0) {
1455                 ether_addr_copy(mac, priv->cfg_bssid);
1456                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1457         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1458                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1459                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1460
1461                 if (node && (&node->list == &priv->sta_list)) {
1462                         node = NULL;
1463                         return -ENOENT;
1464                 }
1465
1466                 node = list_prepare_entry(node, &priv->sta_list, list);
1467                 list_for_each_entry_continue(node, &priv->sta_list, list) {
1468                         ether_addr_copy(mac, node->mac_addr);
1469                         return mwifiex_dump_station_info(priv, node, sinfo);
1470                 }
1471         }
1472
1473         return -ENOENT;
1474 }
1475
1476 static int
1477 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1478                              int idx, struct survey_info *survey)
1479 {
1480         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1481         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1482         enum nl80211_band band;
1483
1484         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1485
1486         memset(survey, 0, sizeof(struct survey_info));
1487
1488         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1489             priv->media_connected && idx == 0) {
1490                         u8 curr_bss_band = priv->curr_bss_params.band;
1491                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1492
1493                         band = mwifiex_band_to_radio_type(curr_bss_band);
1494                         survey->channel = ieee80211_get_channel(wiphy,
1495                                 ieee80211_channel_to_frequency(chan, band));
1496
1497                         if (priv->bcn_nf_last) {
1498                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1499                                 survey->noise = priv->bcn_nf_last;
1500                         }
1501                         return 0;
1502         }
1503
1504         if (idx >= priv->adapter->num_in_chan_stats)
1505                 return -ENOENT;
1506
1507         if (!pchan_stats[idx].cca_scan_dur)
1508                 return 0;
1509
1510         band = pchan_stats[idx].bandcfg;
1511         survey->channel = ieee80211_get_channel(wiphy,
1512             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1513         survey->filled = SURVEY_INFO_NOISE_DBM |
1514                          SURVEY_INFO_TIME |
1515                          SURVEY_INFO_TIME_BUSY;
1516         survey->noise = pchan_stats[idx].noise;
1517         survey->time = pchan_stats[idx].cca_scan_dur;
1518         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1519
1520         return 0;
1521 }
1522
1523 /* Supported rates to be advertised to the cfg80211 */
1524 static struct ieee80211_rate mwifiex_rates[] = {
1525         {.bitrate = 10, .hw_value = 2, },
1526         {.bitrate = 20, .hw_value = 4, },
1527         {.bitrate = 55, .hw_value = 11, },
1528         {.bitrate = 110, .hw_value = 22, },
1529         {.bitrate = 60, .hw_value = 12, },
1530         {.bitrate = 90, .hw_value = 18, },
1531         {.bitrate = 120, .hw_value = 24, },
1532         {.bitrate = 180, .hw_value = 36, },
1533         {.bitrate = 240, .hw_value = 48, },
1534         {.bitrate = 360, .hw_value = 72, },
1535         {.bitrate = 480, .hw_value = 96, },
1536         {.bitrate = 540, .hw_value = 108, },
1537 };
1538
1539 /* Channel definitions to be advertised to cfg80211 */
1540 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1541         {.center_freq = 2412, .hw_value = 1, },
1542         {.center_freq = 2417, .hw_value = 2, },
1543         {.center_freq = 2422, .hw_value = 3, },
1544         {.center_freq = 2427, .hw_value = 4, },
1545         {.center_freq = 2432, .hw_value = 5, },
1546         {.center_freq = 2437, .hw_value = 6, },
1547         {.center_freq = 2442, .hw_value = 7, },
1548         {.center_freq = 2447, .hw_value = 8, },
1549         {.center_freq = 2452, .hw_value = 9, },
1550         {.center_freq = 2457, .hw_value = 10, },
1551         {.center_freq = 2462, .hw_value = 11, },
1552         {.center_freq = 2467, .hw_value = 12, },
1553         {.center_freq = 2472, .hw_value = 13, },
1554         {.center_freq = 2484, .hw_value = 14, },
1555 };
1556
1557 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1558         .channels = mwifiex_channels_2ghz,
1559         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1560         .bitrates = mwifiex_rates,
1561         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1562 };
1563
1564 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1565         {.center_freq = 5040, .hw_value = 8, },
1566         {.center_freq = 5060, .hw_value = 12, },
1567         {.center_freq = 5080, .hw_value = 16, },
1568         {.center_freq = 5170, .hw_value = 34, },
1569         {.center_freq = 5190, .hw_value = 38, },
1570         {.center_freq = 5210, .hw_value = 42, },
1571         {.center_freq = 5230, .hw_value = 46, },
1572         {.center_freq = 5180, .hw_value = 36, },
1573         {.center_freq = 5200, .hw_value = 40, },
1574         {.center_freq = 5220, .hw_value = 44, },
1575         {.center_freq = 5240, .hw_value = 48, },
1576         {.center_freq = 5260, .hw_value = 52, },
1577         {.center_freq = 5280, .hw_value = 56, },
1578         {.center_freq = 5300, .hw_value = 60, },
1579         {.center_freq = 5320, .hw_value = 64, },
1580         {.center_freq = 5500, .hw_value = 100, },
1581         {.center_freq = 5520, .hw_value = 104, },
1582         {.center_freq = 5540, .hw_value = 108, },
1583         {.center_freq = 5560, .hw_value = 112, },
1584         {.center_freq = 5580, .hw_value = 116, },
1585         {.center_freq = 5600, .hw_value = 120, },
1586         {.center_freq = 5620, .hw_value = 124, },
1587         {.center_freq = 5640, .hw_value = 128, },
1588         {.center_freq = 5660, .hw_value = 132, },
1589         {.center_freq = 5680, .hw_value = 136, },
1590         {.center_freq = 5700, .hw_value = 140, },
1591         {.center_freq = 5745, .hw_value = 149, },
1592         {.center_freq = 5765, .hw_value = 153, },
1593         {.center_freq = 5785, .hw_value = 157, },
1594         {.center_freq = 5805, .hw_value = 161, },
1595         {.center_freq = 5825, .hw_value = 165, },
1596 };
1597
1598 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1599         .channels = mwifiex_channels_5ghz,
1600         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1601         .bitrates = mwifiex_rates + 4,
1602         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1603 };
1604
1605
1606 /* Supported crypto cipher suits to be advertised to cfg80211 */
1607 static const u32 mwifiex_cipher_suites[] = {
1608         WLAN_CIPHER_SUITE_WEP40,
1609         WLAN_CIPHER_SUITE_WEP104,
1610         WLAN_CIPHER_SUITE_TKIP,
1611         WLAN_CIPHER_SUITE_CCMP,
1612         WLAN_CIPHER_SUITE_SMS4,
1613         WLAN_CIPHER_SUITE_AES_CMAC,
1614 };
1615
1616 /* Supported mgmt frame types to be advertised to cfg80211 */
1617 static const struct ieee80211_txrx_stypes
1618 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1619         [NL80211_IFTYPE_STATION] = {
1620                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1621                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1622                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1623                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1624         },
1625         [NL80211_IFTYPE_AP] = {
1626                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1627                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1628                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1629                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1630         },
1631         [NL80211_IFTYPE_P2P_CLIENT] = {
1632                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1633                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1634                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1635                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1636         },
1637         [NL80211_IFTYPE_P2P_GO] = {
1638                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1639                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1640                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1641                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1642         },
1643 };
1644
1645 /*
1646  * CFG802.11 operation handler for setting bit rates.
1647  *
1648  * Function configures data rates to firmware using bitrate mask
1649  * provided by cfg80211.
1650  */
1651 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1652                                 struct net_device *dev,
1653                                 const u8 *peer,
1654                                 const struct cfg80211_bitrate_mask *mask)
1655 {
1656         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1657         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1658         enum nl80211_band band;
1659         struct mwifiex_adapter *adapter = priv->adapter;
1660
1661         if (!priv->media_connected) {
1662                 mwifiex_dbg(adapter, ERROR,
1663                             "Can not set Tx data rate in disconnected state\n");
1664                 return -EINVAL;
1665         }
1666
1667         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1668
1669         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1670
1671         /* Fill HR/DSSS rates. */
1672         if (band == NL80211_BAND_2GHZ)
1673                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1674
1675         /* Fill OFDM rates */
1676         if (band == NL80211_BAND_2GHZ)
1677                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1678         else
1679                 bitmap_rates[1] = mask->control[band].legacy;
1680
1681         /* Fill HT MCS rates */
1682         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1683         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1684                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1685
1686        /* Fill VHT MCS rates */
1687         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1688                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1689                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1690                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1691         }
1692
1693         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1694                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1695 }
1696
1697 /*
1698  * CFG802.11 operation handler for connection quality monitoring.
1699  *
1700  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1701  * events to FW.
1702  */
1703 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1704                                                 struct net_device *dev,
1705                                                 s32 rssi_thold, u32 rssi_hyst)
1706 {
1707         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1708         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1709
1710         priv->cqm_rssi_thold = rssi_thold;
1711         priv->cqm_rssi_hyst = rssi_hyst;
1712
1713         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1714         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1715
1716         /* Subscribe/unsubscribe low and high rssi events */
1717         if (rssi_thold && rssi_hyst) {
1718                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1719                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1720                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1721                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1722                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1723                 return mwifiex_send_cmd(priv,
1724                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1725                                         0, 0, &subsc_evt, true);
1726         } else {
1727                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1728                 return mwifiex_send_cmd(priv,
1729                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1730                                         0, 0, &subsc_evt, true);
1731         }
1732
1733         return 0;
1734 }
1735
1736 /* cfg80211 operation handler for change_beacon.
1737  * Function retrieves and sets modified management IEs to FW.
1738  */
1739 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1740                                           struct net_device *dev,
1741                                           struct cfg80211_beacon_data *data)
1742 {
1743         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1744         struct mwifiex_adapter *adapter = priv->adapter;
1745
1746         mwifiex_cancel_scan(adapter);
1747
1748         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1749                 mwifiex_dbg(priv->adapter, ERROR,
1750                             "%s: bss_type mismatched\n", __func__);
1751                 return -EINVAL;
1752         }
1753
1754         if (!priv->bss_started) {
1755                 mwifiex_dbg(priv->adapter, ERROR,
1756                             "%s: bss not started\n", __func__);
1757                 return -EINVAL;
1758         }
1759
1760         if (mwifiex_set_mgmt_ies(priv, data)) {
1761                 mwifiex_dbg(priv->adapter, ERROR,
1762                             "%s: setting mgmt ies failed\n", __func__);
1763                 return -EFAULT;
1764         }
1765
1766         return 0;
1767 }
1768
1769 /* cfg80211 operation handler for del_station.
1770  * Function deauthenticates station which value is provided in mac parameter.
1771  * If mac is NULL/broadcast, all stations in associated station list are
1772  * deauthenticated. If bss is not started or there are no stations in
1773  * associated stations list, no action is taken.
1774  */
1775 static int
1776 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1777                              struct station_del_parameters *params)
1778 {
1779         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1780         struct mwifiex_sta_node *sta_node;
1781         u8 deauth_mac[ETH_ALEN];
1782         unsigned long flags;
1783
1784         if (!priv->bss_started && priv->wdev.cac_started) {
1785                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1786                 mwifiex_abort_cac(priv);
1787         }
1788
1789         if (list_empty(&priv->sta_list) || !priv->bss_started)
1790                 return 0;
1791
1792         if (!params->mac || is_broadcast_ether_addr(params->mac))
1793                 return 0;
1794
1795         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1796                     __func__, params->mac);
1797
1798         eth_zero_addr(deauth_mac);
1799
1800         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1801         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1802         if (sta_node)
1803                 ether_addr_copy(deauth_mac, params->mac);
1804         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1805
1806         if (is_valid_ether_addr(deauth_mac)) {
1807                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1808                                      HostCmd_ACT_GEN_SET, 0,
1809                                      deauth_mac, true))
1810                         return -1;
1811         }
1812
1813         return 0;
1814 }
1815
1816 static int
1817 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1818 {
1819         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1820         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1821                                                         MWIFIEX_BSS_ROLE_ANY);
1822         struct mwifiex_ds_ant_cfg ant_cfg;
1823
1824         if (!tx_ant || !rx_ant)
1825                 return -EOPNOTSUPP;
1826
1827         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1828                 /* Not a MIMO chip. User should provide specific antenna number
1829                  * for Tx/Rx path or enable all antennas for diversity
1830                  */
1831                 if (tx_ant != rx_ant)
1832                         return -EOPNOTSUPP;
1833
1834                 if ((tx_ant & (tx_ant - 1)) &&
1835                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1836                         return -EOPNOTSUPP;
1837
1838                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1839                     (priv->adapter->number_of_antenna > 1)) {
1840                         tx_ant = RF_ANTENNA_AUTO;
1841                         rx_ant = RF_ANTENNA_AUTO;
1842                 }
1843         } else {
1844                 struct ieee80211_sta_ht_cap *ht_info;
1845                 int rx_mcs_supp;
1846                 enum nl80211_band band;
1847
1848                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1849                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1850                         if (adapter->is_hw_11ac_capable)
1851                                 adapter->usr_dot_11ac_mcs_support =
1852                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1853                 } else {
1854                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1855                         if (adapter->is_hw_11ac_capable)
1856                                 adapter->usr_dot_11ac_mcs_support =
1857                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1858                 }
1859
1860                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1861                         if (!adapter->wiphy->bands[band])
1862                                 continue;
1863
1864                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1865                         rx_mcs_supp =
1866                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1867                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1868                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1869                 }
1870         }
1871
1872         ant_cfg.tx_ant = tx_ant;
1873         ant_cfg.rx_ant = rx_ant;
1874
1875         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1876                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1877 }
1878
1879 static int
1880 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1881 {
1882         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1883         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1884                                                         MWIFIEX_BSS_ROLE_ANY);
1885         mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1886                          HostCmd_ACT_GEN_GET, 0, NULL, true);
1887
1888         *tx_ant = priv->tx_ant;
1889         *rx_ant = priv->rx_ant;
1890
1891         return 0;
1892 }
1893
1894 /* cfg80211 operation handler for stop ap.
1895  * Function stops BSS running at uAP interface.
1896  */
1897 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1898 {
1899         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1900
1901         mwifiex_abort_cac(priv);
1902
1903         if (mwifiex_del_mgmt_ies(priv))
1904                 mwifiex_dbg(priv->adapter, ERROR,
1905                             "Failed to delete mgmt IEs!\n");
1906
1907         priv->ap_11n_enabled = 0;
1908         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1909
1910         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1911                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1912                 mwifiex_dbg(priv->adapter, ERROR,
1913                             "Failed to stop the BSS\n");
1914                 return -1;
1915         }
1916
1917         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1918                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1919                 mwifiex_dbg(priv->adapter, ERROR,
1920                             "Failed to reset BSS\n");
1921                 return -1;
1922         }
1923
1924         if (netif_carrier_ok(priv->netdev))
1925                 netif_carrier_off(priv->netdev);
1926         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1927
1928         return 0;
1929 }
1930
1931 /* cfg80211 operation handler for start_ap.
1932  * Function sets beacon period, DTIM period, SSID and security into
1933  * AP config structure.
1934  * AP is configured with these settings and BSS is started.
1935  */
1936 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1937                                      struct net_device *dev,
1938                                      struct cfg80211_ap_settings *params)
1939 {
1940         struct mwifiex_uap_bss_param *bss_cfg;
1941         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1942
1943         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1944                 return -1;
1945
1946         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1947         if (!bss_cfg)
1948                 return -ENOMEM;
1949
1950         mwifiex_set_sys_config_invalid_data(bss_cfg);
1951
1952         if (params->beacon_interval)
1953                 bss_cfg->beacon_period = params->beacon_interval;
1954         if (params->dtim_period)
1955                 bss_cfg->dtim_period = params->dtim_period;
1956
1957         if (params->ssid && params->ssid_len) {
1958                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1959                 bss_cfg->ssid.ssid_len = params->ssid_len;
1960         }
1961         if (params->inactivity_timeout > 0) {
1962                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1963                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1964                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1965         }
1966
1967         switch (params->hidden_ssid) {
1968         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1969                 bss_cfg->bcast_ssid_ctl = 1;
1970                 break;
1971         case NL80211_HIDDEN_SSID_ZERO_LEN:
1972                 bss_cfg->bcast_ssid_ctl = 0;
1973                 break;
1974         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1975                 /* firmware doesn't support this type of hidden SSID */
1976         default:
1977                 kfree(bss_cfg);
1978                 return -EINVAL;
1979         }
1980
1981         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1982         mwifiex_set_uap_rates(bss_cfg, params);
1983
1984         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1985                 mwifiex_dbg(priv->adapter, ERROR,
1986                             "Failed to parse secuirty parameters!\n");
1987                 goto out;
1988         }
1989
1990         mwifiex_set_ht_params(priv, bss_cfg, params);
1991
1992         if (priv->adapter->is_hw_11ac_capable) {
1993                 mwifiex_set_vht_params(priv, bss_cfg, params);
1994                 mwifiex_set_vht_width(priv, params->chandef.width,
1995                                       priv->ap_11ac_enabled);
1996         }
1997
1998         if (priv->ap_11ac_enabled)
1999                 mwifiex_set_11ac_ba_params(priv);
2000         else
2001                 mwifiex_set_ba_params(priv);
2002
2003         mwifiex_set_wmm_params(priv, bss_cfg, params);
2004
2005         if (mwifiex_is_11h_active(priv))
2006                 mwifiex_set_tpc_params(priv, bss_cfg, params);
2007
2008         if (mwifiex_is_11h_active(priv) &&
2009             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2010                                            priv->bss_mode)) {
2011                 mwifiex_dbg(priv->adapter, INFO,
2012                             "Disable 11h extensions in FW\n");
2013                 if (mwifiex_11h_activate(priv, false)) {
2014                         mwifiex_dbg(priv->adapter, ERROR,
2015                                     "Failed to disable 11h extensions!!");
2016                         goto out;
2017                 }
2018                 priv->state_11h.is_11h_active = false;
2019         }
2020
2021         if (mwifiex_config_start_uap(priv, bss_cfg)) {
2022                 mwifiex_dbg(priv->adapter, ERROR,
2023                             "Failed to start AP\n");
2024                 goto out;
2025         }
2026
2027         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2028                 goto out;
2029
2030         if (!netif_carrier_ok(priv->netdev))
2031                 netif_carrier_on(priv->netdev);
2032         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2033
2034         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2035         kfree(bss_cfg);
2036         return 0;
2037
2038 out:
2039         kfree(bss_cfg);
2040         return -1;
2041 }
2042
2043 /*
2044  * CFG802.11 operation handler for disconnection request.
2045  *
2046  * This function does not work when there is already a disconnection
2047  * procedure going on.
2048  */
2049 static int
2050 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2051                             u16 reason_code)
2052 {
2053         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2054
2055         if (!mwifiex_stop_bg_scan(priv))
2056                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2057
2058         if (mwifiex_deauthenticate(priv, NULL))
2059                 return -EFAULT;
2060
2061         eth_zero_addr(priv->cfg_bssid);
2062         priv->hs2_enabled = false;
2063
2064         return 0;
2065 }
2066
2067 /*
2068  * This function informs the CFG802.11 subsystem of a new IBSS.
2069  *
2070  * The following information are sent to the CFG802.11 subsystem
2071  * to register the new IBSS. If we do not register the new IBSS,
2072  * a kernel panic will result.
2073  *      - SSID
2074  *      - SSID length
2075  *      - BSSID
2076  *      - Channel
2077  */
2078 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2079 {
2080         struct ieee80211_channel *chan;
2081         struct mwifiex_bss_info bss_info;
2082         struct cfg80211_bss *bss;
2083         int ie_len;
2084         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2085         enum nl80211_band band;
2086
2087         if (mwifiex_get_bss_info(priv, &bss_info))
2088                 return -1;
2089
2090         ie_buf[0] = WLAN_EID_SSID;
2091         ie_buf[1] = bss_info.ssid.ssid_len;
2092
2093         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2094                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2095         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2096
2097         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2098         chan = ieee80211_get_channel(priv->wdev.wiphy,
2099                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2100                                                        band));
2101
2102         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2103                                   CFG80211_BSS_FTYPE_UNKNOWN,
2104                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2105                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2106         if (bss) {
2107                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2108                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2109         }
2110
2111         return 0;
2112 }
2113
2114 /*
2115  * This function connects with a BSS.
2116  *
2117  * This function handles both Infra and Ad-Hoc modes. It also performs
2118  * validity checking on the provided parameters, disconnects from the
2119  * current BSS (if any), sets up the association/scan parameters,
2120  * including security settings, and performs specific SSID scan before
2121  * trying to connect.
2122  *
2123  * For Infra mode, the function returns failure if the specified SSID
2124  * is not found in scan table. However, for Ad-Hoc mode, it can create
2125  * the IBSS if it does not exist. On successful completion in either case,
2126  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2127  */
2128 static int
2129 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2130                        const u8 *ssid, const u8 *bssid, int mode,
2131                        struct ieee80211_channel *channel,
2132                        struct cfg80211_connect_params *sme, bool privacy)
2133 {
2134         struct cfg80211_ssid req_ssid;
2135         int ret, auth_type = 0;
2136         struct cfg80211_bss *bss = NULL;
2137         u8 is_scanning_required = 0;
2138
2139         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2140
2141         req_ssid.ssid_len = ssid_len;
2142         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2143                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2144                 return -EINVAL;
2145         }
2146
2147         memcpy(req_ssid.ssid, ssid, ssid_len);
2148         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2149                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2150                 return -EINVAL;
2151         }
2152
2153         /* As this is new association, clear locally stored
2154          * keys and security related flags */
2155         priv->sec_info.wpa_enabled = false;
2156         priv->sec_info.wpa2_enabled = false;
2157         priv->wep_key_curr_index = 0;
2158         priv->sec_info.encryption_mode = 0;
2159         priv->sec_info.is_authtype_auto = 0;
2160         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2161
2162         if (mode == NL80211_IFTYPE_ADHOC) {
2163                 u16 enable = true;
2164
2165                 /* set ibss coalescing_status */
2166                 ret = mwifiex_send_cmd(
2167                                 priv,
2168                                 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2169                                 HostCmd_ACT_GEN_SET, 0, &enable, true);
2170                 if (ret)
2171                         return ret;
2172
2173                 /* "privacy" is set only for ad-hoc mode */
2174                 if (privacy) {
2175                         /*
2176                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2177                          * the firmware can find a matching network from the
2178                          * scan. The cfg80211 does not give us the encryption
2179                          * mode at this stage so just setting it to WEP here.
2180                          */
2181                         priv->sec_info.encryption_mode =
2182                                         WLAN_CIPHER_SUITE_WEP104;
2183                         priv->sec_info.authentication_mode =
2184                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2185                 }
2186
2187                 goto done;
2188         }
2189
2190         /* Now handle infra mode. "sme" is valid for infra mode only */
2191         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2192                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2193                 priv->sec_info.is_authtype_auto = 1;
2194         } else {
2195                 auth_type = sme->auth_type;
2196         }
2197
2198         if (sme->crypto.n_ciphers_pairwise) {
2199                 priv->sec_info.encryption_mode =
2200                                                 sme->crypto.ciphers_pairwise[0];
2201                 priv->sec_info.authentication_mode = auth_type;
2202         }
2203
2204         if (sme->crypto.cipher_group) {
2205                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2206                 priv->sec_info.authentication_mode = auth_type;
2207         }
2208         if (sme->ie)
2209                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2210
2211         if (sme->key) {
2212                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2213                         mwifiex_dbg(priv->adapter, INFO,
2214                                     "info: setting wep encryption\t"
2215                                     "with key len %d\n", sme->key_len);
2216                         priv->wep_key_curr_index = sme->key_idx;
2217                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2218                                                  sme->key_len, sme->key_idx,
2219                                                  NULL, 0);
2220                 }
2221         }
2222 done:
2223         /*
2224          * Scan entries are valid for some time (15 sec). So we can save one
2225          * active scan time if we just try cfg80211_get_bss first. If it fails
2226          * then request scan and cfg80211_get_bss() again for final output.
2227          */
2228         while (1) {
2229                 if (is_scanning_required) {
2230                         /* Do specific SSID scanning */
2231                         if (mwifiex_request_scan(priv, &req_ssid)) {
2232                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2233                                 return -EFAULT;
2234                         }
2235                 }
2236
2237                 /* Find the BSS we want using available scan results */
2238                 if (mode == NL80211_IFTYPE_ADHOC)
2239                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2240                                                bssid, ssid, ssid_len,
2241                                                IEEE80211_BSS_TYPE_IBSS,
2242                                                IEEE80211_PRIVACY_ANY);
2243                 else
2244                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2245                                                bssid, ssid, ssid_len,
2246                                                IEEE80211_BSS_TYPE_ESS,
2247                                                IEEE80211_PRIVACY_ANY);
2248
2249                 if (!bss) {
2250                         if (is_scanning_required) {
2251                                 mwifiex_dbg(priv->adapter, WARN,
2252                                             "assoc: requested bss not found in scan results\n");
2253                                 break;
2254                         }
2255                         is_scanning_required = 1;
2256                 } else {
2257                         mwifiex_dbg(priv->adapter, MSG,
2258                                     "info: trying to associate to '%.*s' bssid %pM\n",
2259                                     req_ssid.ssid_len, (char *)req_ssid.ssid,
2260                                     bss->bssid);
2261                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2262                         break;
2263                 }
2264         }
2265
2266         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2267         if (ret)
2268                 return ret;
2269
2270         if (mode == NL80211_IFTYPE_ADHOC) {
2271                 /* Inform the BSS information to kernel, otherwise
2272                  * kernel will give a panic after successful assoc */
2273                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2274                         return -EFAULT;
2275         }
2276
2277         return ret;
2278 }
2279
2280 /*
2281  * CFG802.11 operation handler for association request.
2282  *
2283  * This function does not work when the current mode is set to Ad-Hoc, or
2284  * when there is already an association procedure going on. The given BSS
2285  * information is used to associate.
2286  */
2287 static int
2288 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2289                          struct cfg80211_connect_params *sme)
2290 {
2291         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2292         struct mwifiex_adapter *adapter = priv->adapter;
2293         int ret;
2294
2295         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2296                 mwifiex_dbg(adapter, ERROR,
2297                             "%s: reject infra assoc request in non-STA role\n",
2298                             dev->name);
2299                 return -EINVAL;
2300         }
2301
2302         if (priv->wdev.current_bss) {
2303                 mwifiex_dbg(adapter, ERROR,
2304                             "%s: already connected\n", dev->name);
2305                 return -EALREADY;
2306         }
2307
2308         if (priv->scan_block)
2309                 priv->scan_block = false;
2310
2311         if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2312                 mwifiex_dbg(adapter, ERROR,
2313                             "%s: Ignore connection.\t"
2314                             "Card removed or FW in bad state\n",
2315                             dev->name);
2316                 return -EFAULT;
2317         }
2318
2319         mwifiex_dbg(adapter, INFO,
2320                     "info: Trying to associate to %.*s and bssid %pM\n",
2321                     (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2322
2323         if (!mwifiex_stop_bg_scan(priv))
2324                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2325
2326         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2327                                      priv->bss_mode, sme->channel, sme, 0);
2328         if (!ret) {
2329                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2330                                         NULL, 0, WLAN_STATUS_SUCCESS,
2331                                         GFP_KERNEL);
2332                 mwifiex_dbg(priv->adapter, MSG,
2333                             "info: associated to bssid %pM successfully\n",
2334                             priv->cfg_bssid);
2335                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2336                     priv->adapter->auto_tdls &&
2337                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2338                         mwifiex_setup_auto_tdls_timer(priv);
2339         } else {
2340                 mwifiex_dbg(priv->adapter, ERROR,
2341                             "info: association to bssid %pM failed\n",
2342                             priv->cfg_bssid);
2343                 eth_zero_addr(priv->cfg_bssid);
2344
2345                 if (ret > 0)
2346                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2347                                                 NULL, 0, NULL, 0, ret,
2348                                                 GFP_KERNEL);
2349                 else
2350                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2351                                                 NULL, 0, NULL, 0,
2352                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2353                                                 GFP_KERNEL);
2354         }
2355
2356         return 0;
2357 }
2358
2359 /*
2360  * This function sets following parameters for ibss network.
2361  *  -  channel
2362  *  -  start band
2363  *  -  11n flag
2364  *  -  secondary channel offset
2365  */
2366 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2367                                    struct cfg80211_ibss_params *params)
2368 {
2369         struct mwifiex_adapter *adapter = priv->adapter;
2370         int index = 0, i;
2371         u8 config_bands = 0;
2372
2373         if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2374                 if (!params->basic_rates) {
2375                         config_bands = BAND_B | BAND_G;
2376                 } else {
2377                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2378                                 /*
2379                                  * Rates below 6 Mbps in the table are CCK
2380                                  * rates; 802.11b and from 6 they are OFDM;
2381                                  * 802.11G
2382                                  */
2383                                 if (mwifiex_rates[i].bitrate == 60) {
2384                                         index = 1 << i;
2385                                         break;
2386                                 }
2387                         }
2388
2389                         if (params->basic_rates < index) {
2390                                 config_bands = BAND_B;
2391                         } else {
2392                                 config_bands = BAND_G;
2393                                 if (params->basic_rates % index)
2394                                         config_bands |= BAND_B;
2395                         }
2396                 }
2397
2398                 if (cfg80211_get_chandef_type(&params->chandef) !=
2399                                                 NL80211_CHAN_NO_HT)
2400                         config_bands |= BAND_G | BAND_GN;
2401         } else {
2402                 if (cfg80211_get_chandef_type(&params->chandef) ==
2403                                                 NL80211_CHAN_NO_HT)
2404                         config_bands = BAND_A;
2405                 else
2406                         config_bands = BAND_AN | BAND_A;
2407         }
2408
2409         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2410                 adapter->config_bands = config_bands;
2411                 adapter->adhoc_start_band = config_bands;
2412
2413                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2414                         adapter->adhoc_11n_enabled = true;
2415                 else
2416                         adapter->adhoc_11n_enabled = false;
2417         }
2418
2419         adapter->sec_chan_offset =
2420                 mwifiex_chan_type_to_sec_chan_offset(
2421                         cfg80211_get_chandef_type(&params->chandef));
2422         priv->adhoc_channel = ieee80211_frequency_to_channel(
2423                                 params->chandef.chan->center_freq);
2424
2425         mwifiex_dbg(adapter, INFO,
2426                     "info: set ibss band %d, chan %d, chan offset %d\n",
2427                     config_bands, priv->adhoc_channel,
2428                     adapter->sec_chan_offset);
2429
2430         return 0;
2431 }
2432
2433 /*
2434  * CFG802.11 operation handler to join an IBSS.
2435  *
2436  * This function does not work in any mode other than Ad-Hoc, or if
2437  * a join operation is already in progress.
2438  */
2439 static int
2440 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2441                            struct cfg80211_ibss_params *params)
2442 {
2443         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2444         int ret = 0;
2445
2446         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2447                 mwifiex_dbg(priv->adapter, ERROR,
2448                             "request to join ibss received\t"
2449                             "when station is not in ibss mode\n");
2450                 goto done;
2451         }
2452
2453         mwifiex_dbg(priv->adapter, MSG,
2454                     "info: trying to join to %.*s and bssid %pM\n",
2455                     params->ssid_len, (char *)params->ssid, params->bssid);
2456
2457         mwifiex_set_ibss_params(priv, params);
2458
2459         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2460                                      params->bssid, priv->bss_mode,
2461                                      params->chandef.chan, NULL,
2462                                      params->privacy);
2463 done:
2464         if (!ret) {
2465                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2466                                      params->chandef.chan, GFP_KERNEL);
2467                 mwifiex_dbg(priv->adapter, MSG,
2468                             "info: joined/created adhoc network with bssid\t"
2469                             "%pM successfully\n", priv->cfg_bssid);
2470         } else {
2471                 mwifiex_dbg(priv->adapter, ERROR,
2472                             "info: failed creating/joining adhoc network\n");
2473         }
2474
2475         return ret;
2476 }
2477
2478 /*
2479  * CFG802.11 operation handler to leave an IBSS.
2480  *
2481  * This function does not work if a leave operation is
2482  * already in progress.
2483  */
2484 static int
2485 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2486 {
2487         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2488
2489         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2490                     priv->cfg_bssid);
2491         if (mwifiex_deauthenticate(priv, NULL))
2492                 return -EFAULT;
2493
2494         eth_zero_addr(priv->cfg_bssid);
2495
2496         return 0;
2497 }
2498
2499 /*
2500  * CFG802.11 operation handler for scan request.
2501  *
2502  * This function issues a scan request to the firmware based upon
2503  * the user specified scan configuration. On successful completion,
2504  * it also informs the results.
2505  */
2506 static int
2507 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2508                       struct cfg80211_scan_request *request)
2509 {
2510         struct net_device *dev = request->wdev->netdev;
2511         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2512         int i, offset, ret;
2513         struct ieee80211_channel *chan;
2514         struct ieee_types_header *ie;
2515         struct mwifiex_user_scan_cfg *user_scan_cfg;
2516
2517         mwifiex_dbg(priv->adapter, CMD,
2518                     "info: received scan request on %s\n", dev->name);
2519
2520         /* Block scan request if scan operation or scan cleanup when interface
2521          * is disabled is in process
2522          */
2523         if (priv->scan_request || priv->scan_aborting) {
2524                 mwifiex_dbg(priv->adapter, WARN,
2525                             "cmd: Scan already in process..\n");
2526                 return -EBUSY;
2527         }
2528
2529         if (!priv->wdev.current_bss && priv->scan_block)
2530                 priv->scan_block = false;
2531
2532         if (!mwifiex_stop_bg_scan(priv))
2533                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2534
2535         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2536         if (!user_scan_cfg)
2537                 return -ENOMEM;
2538
2539         priv->scan_request = request;
2540
2541         if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2542                 ether_addr_copy(priv->random_mac, request->mac_addr);
2543                 for (i = 0; i < ETH_ALEN; i++) {
2544                         priv->random_mac[i] &= request->mac_addr_mask[i];
2545                         priv->random_mac[i] |= get_random_int() &
2546                                                ~(request->mac_addr_mask[i]);
2547                 }
2548                 ether_addr_copy(user_scan_cfg->random_mac, priv->random_mac);
2549         } else {
2550                 eth_zero_addr(priv->random_mac);
2551         }
2552
2553         user_scan_cfg->num_ssids = request->n_ssids;
2554         user_scan_cfg->ssid_list = request->ssids;
2555
2556         if (request->ie && request->ie_len) {
2557                 offset = 0;
2558                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2559                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2560                                 continue;
2561                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2562                         ie = (struct ieee_types_header *)(request->ie + offset);
2563                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2564                         offset += sizeof(*ie) + ie->len;
2565
2566                         if (offset >= request->ie_len)
2567                                 break;
2568                 }
2569         }
2570
2571         for (i = 0; i < min_t(u32, request->n_channels,
2572                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2573                 chan = request->channels[i];
2574                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2575                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2576
2577                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2578                         user_scan_cfg->chan_list[i].scan_type =
2579                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2580                 else
2581                         user_scan_cfg->chan_list[i].scan_type =
2582                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2583
2584                 user_scan_cfg->chan_list[i].scan_time = 0;
2585         }
2586
2587         if (priv->adapter->scan_chan_gap_enabled &&
2588             mwifiex_is_any_intf_active(priv))
2589                 user_scan_cfg->scan_chan_gap =
2590                                               priv->adapter->scan_chan_gap_time;
2591
2592         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2593         kfree(user_scan_cfg);
2594         if (ret) {
2595                 mwifiex_dbg(priv->adapter, ERROR,
2596                             "scan failed: %d\n", ret);
2597                 priv->scan_aborting = false;
2598                 priv->scan_request = NULL;
2599                 return ret;
2600         }
2601
2602         if (request->ie && request->ie_len) {
2603                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2604                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2605                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2606                                 memset(&priv->vs_ie[i].ie, 0,
2607                                        MWIFIEX_MAX_VSIE_LEN);
2608                         }
2609                 }
2610         }
2611         return 0;
2612 }
2613
2614 /* CFG802.11 operation handler for sched_scan_start.
2615  *
2616  * This function issues a bgscan config request to the firmware based upon
2617  * the user specified sched_scan configuration. On successful completion,
2618  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2619  * query command to get sched_scan results from firmware.
2620  */
2621 static int
2622 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2623                                   struct net_device *dev,
2624                                   struct cfg80211_sched_scan_request *request)
2625 {
2626         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2627         int i, offset;
2628         struct ieee80211_channel *chan;
2629         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2630         struct ieee_types_header *ie;
2631
2632         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2633                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2634                           __func__);
2635                 return -EINVAL;
2636         }
2637
2638         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2639                    request->n_ssids, request->n_match_sets);
2640         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2641                    request->n_channels, request->scan_plans->interval,
2642                    (int)request->ie_len);
2643
2644         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2645         if (!bgscan_cfg)
2646                 return -ENOMEM;
2647
2648         if (priv->scan_request || priv->scan_aborting)
2649                 bgscan_cfg->start_later = true;
2650
2651         bgscan_cfg->num_ssids = request->n_match_sets;
2652         bgscan_cfg->ssid_list = request->match_sets;
2653
2654         if (request->ie && request->ie_len) {
2655                 offset = 0;
2656                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2657                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2658                                 continue;
2659                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2660                         ie = (struct ieee_types_header *)(request->ie + offset);
2661                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2662                         offset += sizeof(*ie) + ie->len;
2663
2664                         if (offset >= request->ie_len)
2665                                 break;
2666                 }
2667         }
2668
2669         for (i = 0; i < min_t(u32, request->n_channels,
2670                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2671                 chan = request->channels[i];
2672                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2673                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2674
2675                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2676                         bgscan_cfg->chan_list[i].scan_type =
2677                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2678                 else
2679                         bgscan_cfg->chan_list[i].scan_type =
2680                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2681
2682                 bgscan_cfg->chan_list[i].scan_time = 0;
2683         }
2684
2685         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2686                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2687
2688         /* Use at least 15 second for per scan cycle */
2689         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2690                                      MWIFIEX_BGSCAN_INTERVAL) ?
2691                                 request->scan_plans->interval :
2692                                 MWIFIEX_BGSCAN_INTERVAL;
2693
2694         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2695         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2696                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2697         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2698         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2699         bgscan_cfg->enable = true;
2700         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2701                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2702                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2703         }
2704
2705         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2706                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2707                 kfree(bgscan_cfg);
2708                 return -EFAULT;
2709         }
2710
2711         priv->sched_scanning = true;
2712
2713         kfree(bgscan_cfg);
2714         return 0;
2715 }
2716
2717 /* CFG802.11 operation handler for sched_scan_stop.
2718  *
2719  * This function issues a bgscan config command to disable
2720  * previous bgscan configuration in the firmware
2721  */
2722 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2723                                             struct net_device *dev)
2724 {
2725         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2726
2727         wiphy_info(wiphy, "sched scan stop!");
2728         mwifiex_stop_bg_scan(priv);
2729
2730         return 0;
2731 }
2732
2733 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2734                                    struct mwifiex_private *priv)
2735 {
2736         struct mwifiex_adapter *adapter = priv->adapter;
2737
2738         vht_info->vht_supported = true;
2739
2740         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2741         /* Update MCS support for VHT */
2742         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2743                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2744         vht_info->vht_mcs.rx_highest = 0;
2745         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2746                                 adapter->hw_dot_11ac_mcs_support >> 16);
2747         vht_info->vht_mcs.tx_highest = 0;
2748 }
2749
2750 /*
2751  * This function sets up the CFG802.11 specific HT capability fields
2752  * with default values.
2753  *
2754  * The following default values are set -
2755  *      - HT Supported = True
2756  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2757  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2758  *      - HT Capabilities supported by firmware
2759  *      - MCS information, Rx mask = 0xff
2760  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2761  */
2762 static void
2763 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2764                       struct mwifiex_private *priv)
2765 {
2766         int rx_mcs_supp;
2767         struct ieee80211_mcs_info mcs_set;
2768         u8 *mcs = (u8 *)&mcs_set;
2769         struct mwifiex_adapter *adapter = priv->adapter;
2770
2771         ht_info->ht_supported = true;
2772         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2773         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2774
2775         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2776
2777         /* Fill HT capability information */
2778         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2779                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2780         else
2781                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2782
2783         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2784                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2785         else
2786                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2787
2788         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2789                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2790         else
2791                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2792
2793         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2794                 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2795         else
2796                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2797
2798         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2799                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2800         else
2801                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2802
2803         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2804                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2805         else
2806                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2807
2808         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2809                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2810         else
2811                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2812
2813         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2814                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2815         else
2816                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2817
2818         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2819         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2820
2821         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2822         /* Set MCS for 1x1/2x2 */
2823         memset(mcs, 0xff, rx_mcs_supp);
2824         /* Clear all the other values */
2825         memset(&mcs[rx_mcs_supp], 0,
2826                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2827         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2828             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2829                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2830                 SETHT_MCS32(mcs_set.rx_mask);
2831
2832         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2833
2834         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2835 }
2836
2837 /*
2838  *  create a new virtual interface with the given name and name assign type
2839  */
2840 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2841                                               const char *name,
2842                                               unsigned char name_assign_type,
2843                                               enum nl80211_iftype type,
2844                                               struct vif_params *params)
2845 {
2846         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2847         struct mwifiex_private *priv;
2848         struct net_device *dev;
2849         void *mdev_priv;
2850         int ret;
2851
2852         if (!adapter)
2853                 return ERR_PTR(-EFAULT);
2854
2855         switch (type) {
2856         case NL80211_IFTYPE_UNSPECIFIED:
2857         case NL80211_IFTYPE_STATION:
2858         case NL80211_IFTYPE_ADHOC:
2859                 if (adapter->curr_iface_comb.sta_intf ==
2860                     adapter->iface_limit.sta_intf) {
2861                         mwifiex_dbg(adapter, ERROR,
2862                                     "cannot create multiple sta/adhoc ifaces\n");
2863                         return ERR_PTR(-EINVAL);
2864                 }
2865
2866                 priv = mwifiex_get_unused_priv_by_bss_type(
2867                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2868                 if (!priv) {
2869                         mwifiex_dbg(adapter, ERROR,
2870                                     "could not get free private struct\n");
2871                         return ERR_PTR(-EFAULT);
2872                 }
2873
2874                 priv->wdev.wiphy = wiphy;
2875                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2876
2877                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2878                         priv->bss_mode = NL80211_IFTYPE_STATION;
2879                 else
2880                         priv->bss_mode = type;
2881
2882                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2883                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2884                 priv->bss_priority = 0;
2885                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2886
2887                 break;
2888         case NL80211_IFTYPE_AP:
2889                 if (adapter->curr_iface_comb.uap_intf ==
2890                     adapter->iface_limit.uap_intf) {
2891                         mwifiex_dbg(adapter, ERROR,
2892                                     "cannot create multiple AP ifaces\n");
2893                         return ERR_PTR(-EINVAL);
2894                 }
2895
2896                 priv = mwifiex_get_unused_priv_by_bss_type(
2897                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
2898                 if (!priv) {
2899                         mwifiex_dbg(adapter, ERROR,
2900                                     "could not get free private struct\n");
2901                         return ERR_PTR(-EFAULT);
2902                 }
2903
2904                 priv->wdev.wiphy = wiphy;
2905                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2906
2907                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2908                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2909                 priv->bss_priority = 0;
2910                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2911                 priv->bss_started = 0;
2912                 priv->bss_mode = type;
2913
2914                 break;
2915         case NL80211_IFTYPE_P2P_CLIENT:
2916                 if (adapter->curr_iface_comb.p2p_intf ==
2917                     adapter->iface_limit.p2p_intf) {
2918                         mwifiex_dbg(adapter, ERROR,
2919                                     "cannot create multiple P2P ifaces\n");
2920                         return ERR_PTR(-EINVAL);
2921                 }
2922
2923                 priv = mwifiex_get_unused_priv_by_bss_type(
2924                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
2925                 if (!priv) {
2926                         mwifiex_dbg(adapter, ERROR,
2927                                     "could not get free private struct\n");
2928                         return ERR_PTR(-EFAULT);
2929                 }
2930
2931                 priv->wdev.wiphy = wiphy;
2932                 /* At start-up, wpa_supplicant tries to change the interface
2933                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2934                  */
2935                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2936                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2937
2938                 /* Setting bss_type to P2P tells firmware that this interface
2939                  * is receiving P2P peers found during find phase and doing
2940                  * action frame handshake.
2941                  */
2942                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2943
2944                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2945                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2946                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2947                 priv->bss_started = 0;
2948
2949                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2950                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2951                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2952                         return ERR_PTR(-EFAULT);
2953                 }
2954
2955                 break;
2956         default:
2957                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2958                 return ERR_PTR(-EINVAL);
2959         }
2960
2961         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2962                                name_assign_type, ether_setup,
2963                                IEEE80211_NUM_ACS, 1);
2964         if (!dev) {
2965                 mwifiex_dbg(adapter, ERROR,
2966                             "no memory available for netdevice\n");
2967                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2968                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2969                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2970                 return ERR_PTR(-ENOMEM);
2971         }
2972
2973         mwifiex_init_priv_params(priv, dev);
2974         priv->netdev = dev;
2975
2976         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
2977                                HostCmd_ACT_GEN_SET, 0, NULL, true);
2978         if (ret)
2979                 return ERR_PTR(ret);
2980
2981         ret = mwifiex_sta_init_cmd(priv, false, false);
2982         if (ret)
2983                 return ERR_PTR(ret);
2984
2985         mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
2986         if (adapter->is_hw_11ac_capable)
2987                 mwifiex_setup_vht_caps(
2988                         &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
2989
2990         if (adapter->config_bands & BAND_A)
2991                 mwifiex_setup_ht_caps(
2992                         &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
2993
2994         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2995                 mwifiex_setup_vht_caps(
2996                         &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
2997
2998         dev_net_set(dev, wiphy_net(wiphy));
2999         dev->ieee80211_ptr = &priv->wdev;
3000         dev->ieee80211_ptr->iftype = priv->bss_mode;
3001         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
3002         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3003
3004         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3005         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3006         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
3007         dev->ethtool_ops = &mwifiex_ethtool_ops;
3008
3009         mdev_priv = netdev_priv(dev);
3010         *((unsigned long *) mdev_priv) = (unsigned long) priv;
3011
3012         SET_NETDEV_DEV(dev, adapter->dev);
3013
3014         /* Register network device */
3015         if (register_netdevice(dev)) {
3016                 mwifiex_dbg(adapter, ERROR,
3017                             "cannot register virtual network device\n");
3018                 free_netdev(dev);
3019                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3020                 priv->netdev = NULL;
3021                 memset(&priv->wdev, 0, sizeof(priv->wdev));
3022                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3023                 return ERR_PTR(-EFAULT);
3024         }
3025
3026         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3027                                                   WQ_HIGHPRI |
3028                                                   WQ_MEM_RECLAIM |
3029                                                   WQ_UNBOUND, 1, name);
3030         if (!priv->dfs_cac_workqueue) {
3031                 mwifiex_dbg(adapter, ERROR,
3032                             "cannot register virtual network device\n");
3033                 free_netdev(dev);
3034                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3035                 priv->netdev = NULL;
3036                 memset(&priv->wdev, 0, sizeof(priv->wdev));
3037                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3038                 return ERR_PTR(-ENOMEM);
3039         }
3040
3041         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3042
3043         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3044                                                       WQ_HIGHPRI | WQ_UNBOUND |
3045                                                       WQ_MEM_RECLAIM, 1, name);
3046         if (!priv->dfs_chan_sw_workqueue) {
3047                 mwifiex_dbg(adapter, ERROR,
3048                             "cannot register virtual network device\n");
3049                 free_netdev(dev);
3050                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3051                 priv->netdev = NULL;
3052                 memset(&priv->wdev, 0, sizeof(priv->wdev));
3053                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3054                 destroy_workqueue(priv->dfs_cac_workqueue);
3055                 priv->dfs_cac_workqueue = NULL;
3056                 return ERR_PTR(-ENOMEM);
3057         }
3058
3059         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3060                           mwifiex_dfs_chan_sw_work_queue);
3061
3062         sema_init(&priv->async_sem, 1);
3063
3064         mwifiex_dbg(adapter, INFO,
3065                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
3066
3067 #ifdef CONFIG_DEBUG_FS
3068         mwifiex_dev_debugfs_init(priv);
3069 #endif
3070
3071         switch (type) {
3072         case NL80211_IFTYPE_UNSPECIFIED:
3073         case NL80211_IFTYPE_STATION:
3074         case NL80211_IFTYPE_ADHOC:
3075                 adapter->curr_iface_comb.sta_intf++;
3076                 break;
3077         case NL80211_IFTYPE_AP:
3078                 adapter->curr_iface_comb.uap_intf++;
3079                 break;
3080         case NL80211_IFTYPE_P2P_CLIENT:
3081                 adapter->curr_iface_comb.p2p_intf++;
3082                 break;
3083         default:
3084                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3085                 return ERR_PTR(-EINVAL);
3086         }
3087
3088         return &priv->wdev;
3089 }
3090 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3091
3092 /*
3093  * del_virtual_intf: remove the virtual interface determined by dev
3094  */
3095 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3096 {
3097         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3098         struct mwifiex_adapter *adapter = priv->adapter;
3099         struct sk_buff *skb, *tmp;
3100
3101 #ifdef CONFIG_DEBUG_FS
3102         mwifiex_dev_debugfs_remove(priv);
3103 #endif
3104
3105         if (priv->sched_scanning)
3106                 priv->sched_scanning = false;
3107
3108         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3109
3110         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3111                 skb_unlink(skb, &priv->bypass_txq);
3112                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3113         }
3114
3115         if (netif_carrier_ok(priv->netdev))
3116                 netif_carrier_off(priv->netdev);
3117
3118         if (wdev->netdev->reg_state == NETREG_REGISTERED)
3119                 unregister_netdevice(wdev->netdev);
3120
3121         if (priv->dfs_cac_workqueue) {
3122                 flush_workqueue(priv->dfs_cac_workqueue);
3123                 destroy_workqueue(priv->dfs_cac_workqueue);
3124                 priv->dfs_cac_workqueue = NULL;
3125         }
3126
3127         if (priv->dfs_chan_sw_workqueue) {
3128                 flush_workqueue(priv->dfs_chan_sw_workqueue);
3129                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3130                 priv->dfs_chan_sw_workqueue = NULL;
3131         }
3132         /* Clear the priv in adapter */
3133         priv->netdev->ieee80211_ptr = NULL;
3134         priv->netdev = NULL;
3135         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3136
3137         priv->media_connected = false;
3138
3139         switch (priv->bss_mode) {
3140         case NL80211_IFTYPE_UNSPECIFIED:
3141         case NL80211_IFTYPE_STATION:
3142         case NL80211_IFTYPE_ADHOC:
3143                 adapter->curr_iface_comb.sta_intf--;
3144                 break;
3145         case NL80211_IFTYPE_AP:
3146                 adapter->curr_iface_comb.uap_intf--;
3147                 break;
3148         case NL80211_IFTYPE_P2P_CLIENT:
3149         case NL80211_IFTYPE_P2P_GO:
3150                 adapter->curr_iface_comb.p2p_intf--;
3151                 break;
3152         default:
3153                 mwifiex_dbg(adapter, ERROR,
3154                             "del_virtual_intf: type not supported\n");
3155                 break;
3156         }
3157
3158         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3159
3160         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3161             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3162                 kfree(priv->hist_data);
3163
3164         return 0;
3165 }
3166 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3167
3168 static bool
3169 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3170                              u8 max_byte_seq)
3171 {
3172         int j, k, valid_byte_cnt = 0;
3173         bool dont_care_byte = false;
3174
3175         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3176                 for (k = 0; k < 8; k++) {
3177                         if (pat->mask[j] & 1 << k) {
3178                                 memcpy(byte_seq + valid_byte_cnt,
3179                                        &pat->pattern[j * 8 + k], 1);
3180                                 valid_byte_cnt++;
3181                                 if (dont_care_byte)
3182                                         return false;
3183                         } else {
3184                                 if (valid_byte_cnt)
3185                                         dont_care_byte = true;
3186                         }
3187
3188                         /* wildcard bytes record as the offset
3189                          * before the valid byte
3190                          */
3191                         if (!valid_byte_cnt && !dont_care_byte)
3192                                 pat->pkt_offset++;
3193
3194                         if (valid_byte_cnt > max_byte_seq)
3195                                 return false;
3196                 }
3197         }
3198
3199         byte_seq[max_byte_seq] = valid_byte_cnt;
3200
3201         return true;
3202 }
3203
3204 #ifdef CONFIG_PM
3205 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3206                                            struct mwifiex_mef_entry *mef_entry)
3207 {
3208         int i, filt_num = 0, num_ipv4 = 0;
3209         struct in_device *in_dev;
3210         struct in_ifaddr *ifa;
3211         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3212         struct mwifiex_adapter *adapter = priv->adapter;
3213
3214         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3215         mef_entry->action = MEF_ACTION_AUTO_ARP;
3216
3217         /* Enable ARP offload feature */
3218         memset(ips, 0, sizeof(ips));
3219         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3220                 if (adapter->priv[i]->netdev) {
3221                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3222                         if (!in_dev)
3223                                 continue;
3224                         ifa = in_dev->ifa_list;
3225                         if (!ifa || !ifa->ifa_local)
3226                                 continue;
3227                         ips[i] = ifa->ifa_local;
3228                         num_ipv4++;
3229                 }
3230         }
3231
3232         for (i = 0; i < num_ipv4; i++) {
3233                 if (!ips[i])
3234                         continue;
3235                 mef_entry->filter[filt_num].repeat = 1;
3236                 memcpy(mef_entry->filter[filt_num].byte_seq,
3237                        (u8 *)&ips[i], sizeof(ips[i]));
3238                 mef_entry->filter[filt_num].
3239                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3240                         sizeof(ips[i]);
3241                 mef_entry->filter[filt_num].offset = 46;
3242                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3243                 if (filt_num) {
3244                         mef_entry->filter[filt_num].filt_action =
3245                                 TYPE_OR;
3246                 }
3247                 filt_num++;
3248         }
3249
3250         mef_entry->filter[filt_num].repeat = 1;
3251         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3252         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3253         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3254         mef_entry->filter[filt_num].offset = 20;
3255         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3256         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3257 }
3258
3259 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3260                                         struct mwifiex_ds_mef_cfg *mef_cfg,
3261                                         struct mwifiex_mef_entry *mef_entry,
3262                                         struct cfg80211_wowlan *wowlan)
3263 {
3264         int i, filt_num = 0, ret = 0;
3265         bool first_pat = true;
3266         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3267         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3268         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3269
3270         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3271         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3272
3273         for (i = 0; i < wowlan->n_patterns; i++) {
3274                 memset(byte_seq, 0, sizeof(byte_seq));
3275                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3276                                         byte_seq,
3277                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3278                         mwifiex_dbg(priv->adapter, ERROR,
3279                                     "Pattern not supported\n");
3280                         return -EOPNOTSUPP;
3281                 }
3282
3283                 if (!wowlan->patterns[i].pkt_offset) {
3284                         if (!(byte_seq[0] & 0x01) &&
3285                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3286                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3287                                 continue;
3288                         } else if (is_broadcast_ether_addr(byte_seq)) {
3289                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3290                                 continue;
3291                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3292                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3293                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3294                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3295                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3296                                 continue;
3297                         }
3298                 }
3299                 mef_entry->filter[filt_num].repeat = 1;
3300                 mef_entry->filter[filt_num].offset =
3301                         wowlan->patterns[i].pkt_offset;
3302                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3303                                 sizeof(byte_seq));
3304                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3305
3306                 if (first_pat) {
3307                         first_pat = false;
3308                         mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3309                 } else {
3310                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3311                 }
3312
3313                 filt_num++;
3314         }
3315
3316         if (wowlan->magic_pkt) {
3317                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3318                 mef_entry->filter[filt_num].repeat = 16;
3319                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3320                                 ETH_ALEN);
3321                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3322                         ETH_ALEN;
3323                 mef_entry->filter[filt_num].offset = 28;
3324                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3325                 if (filt_num)
3326                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3327
3328                 filt_num++;
3329                 mef_entry->filter[filt_num].repeat = 16;
3330                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3331                                 ETH_ALEN);
3332                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3333                         ETH_ALEN;
3334                 mef_entry->filter[filt_num].offset = 56;
3335                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3336                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3337                 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3338         }
3339         return ret;
3340 }
3341
3342 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3343                                   struct cfg80211_wowlan *wowlan)
3344 {
3345         int ret = 0, num_entries = 1;
3346         struct mwifiex_ds_mef_cfg mef_cfg;
3347         struct mwifiex_mef_entry *mef_entry;
3348
3349         if (wowlan->n_patterns || wowlan->magic_pkt)
3350                 num_entries++;
3351
3352         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3353         if (!mef_entry)
3354                 return -ENOMEM;
3355
3356         memset(&mef_cfg, 0, sizeof(mef_cfg));
3357         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3358                 MWIFIEX_CRITERIA_UNICAST;
3359         mef_cfg.num_entries = num_entries;
3360         mef_cfg.mef_entry = mef_entry;
3361
3362         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3363
3364         if (wowlan->n_patterns || wowlan->magic_pkt) {
3365                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3366                                                    &mef_entry[1], wowlan);
3367                 if (ret)
3368                         goto err;
3369         }
3370
3371         if (!mef_cfg.criteria)
3372                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3373                         MWIFIEX_CRITERIA_UNICAST |
3374                         MWIFIEX_CRITERIA_MULTICAST;
3375
3376         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3377                         HostCmd_ACT_GEN_SET, 0,
3378                         &mef_cfg, true);
3379
3380 err:
3381         kfree(mef_entry);
3382         return ret;
3383 }
3384
3385 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3386                                     struct cfg80211_wowlan *wowlan)
3387 {
3388         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3389         struct mwifiex_ds_hs_cfg hs_cfg;
3390         int i, ret = 0, retry_num = 10;
3391         struct mwifiex_private *priv;
3392         struct mwifiex_private *sta_priv =
3393                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3394
3395         sta_priv->scan_aborting = true;
3396         for (i = 0; i < adapter->priv_num; i++) {
3397                 priv = adapter->priv[i];
3398                 mwifiex_abort_cac(priv);
3399         }
3400
3401         mwifiex_cancel_all_pending_cmd(adapter);
3402
3403         for (i = 0; i < adapter->priv_num; i++) {
3404                 priv = adapter->priv[i];
3405                 if (priv && priv->netdev) {
3406                         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3407                         if (netif_carrier_ok(priv->netdev))
3408                                 netif_carrier_off(priv->netdev);
3409                 }
3410         }
3411
3412         for (i = 0; i < retry_num; i++) {
3413                 if (!mwifiex_wmm_lists_empty(adapter) ||
3414                     !mwifiex_bypass_txlist_empty(adapter) ||
3415                     !skb_queue_empty(&adapter->tx_data_q))
3416                         usleep_range(10000, 15000);
3417                 else
3418                         break;
3419         }
3420
3421         if (!wowlan) {
3422                 mwifiex_dbg(adapter, ERROR,
3423                             "None of the WOWLAN triggers enabled\n");
3424                 ret = 0;
3425                 goto done;
3426         }
3427
3428         if (!sta_priv->media_connected && !wowlan->nd_config) {
3429                 mwifiex_dbg(adapter, ERROR,
3430                             "Can not configure WOWLAN in disconnected state\n");
3431                 ret = 0;
3432                 goto done;
3433         }
3434
3435         ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3436         if (ret) {
3437                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3438                 goto done;
3439         }
3440
3441         memset(&hs_cfg, 0, sizeof(hs_cfg));
3442         hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3443
3444         if (wowlan->nd_config) {
3445                 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3446                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3447                 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3448                                                   wowlan->nd_config);
3449         }
3450
3451         if (wowlan->disconnect) {
3452                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3453                 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3454         }
3455
3456         hs_cfg.is_invoke_hostcmd = false;
3457         hs_cfg.gpio = adapter->hs_cfg.gpio;
3458         hs_cfg.gap = adapter->hs_cfg.gap;
3459         ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3460                                     MWIFIEX_SYNC_CMD, &hs_cfg);
3461         if (ret)
3462                 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3463
3464 done:
3465         sta_priv->scan_aborting = false;
3466         return ret;
3467 }
3468
3469 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3470 {
3471         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3472         struct mwifiex_private *priv;
3473         struct mwifiex_ds_wakeup_reason wakeup_reason;
3474         struct cfg80211_wowlan_wakeup wakeup_report;
3475         int i;
3476         bool report_wakeup_reason = true;
3477
3478         for (i = 0; i < adapter->priv_num; i++) {
3479                 priv = adapter->priv[i];
3480                 if (priv && priv->netdev) {
3481                         if (!netif_carrier_ok(priv->netdev))
3482                                 netif_carrier_on(priv->netdev);
3483                         mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
3484                 }
3485         }
3486
3487         if (!wiphy->wowlan_config)
3488                 goto done;
3489
3490         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3491         mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3492                                   &wakeup_reason);
3493         memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3494
3495         wakeup_report.pattern_idx = -1;
3496
3497         switch (wakeup_reason.hs_wakeup_reason) {
3498         case NO_HSWAKEUP_REASON:
3499                 break;
3500         case BCAST_DATA_MATCHED:
3501                 break;
3502         case MCAST_DATA_MATCHED:
3503                 break;
3504         case UCAST_DATA_MATCHED:
3505                 break;
3506         case MASKTABLE_EVENT_MATCHED:
3507                 break;
3508         case NON_MASKABLE_EVENT_MATCHED:
3509                 if (wiphy->wowlan_config->disconnect)
3510                         wakeup_report.disconnect = true;
3511                 if (wiphy->wowlan_config->nd_config)
3512                         wakeup_report.net_detect = adapter->nd_info;
3513                 break;
3514         case NON_MASKABLE_CONDITION_MATCHED:
3515                 break;
3516         case MAGIC_PATTERN_MATCHED:
3517                 if (wiphy->wowlan_config->magic_pkt)
3518                         wakeup_report.magic_pkt = true;
3519                 if (wiphy->wowlan_config->n_patterns)
3520                         wakeup_report.pattern_idx = 1;
3521                 break;
3522         case GTK_REKEY_FAILURE:
3523                 if (wiphy->wowlan_config->gtk_rekey_failure)
3524                         wakeup_report.gtk_rekey_failure = true;
3525                 break;
3526         default:
3527                 report_wakeup_reason = false;
3528                 break;
3529         }
3530
3531         if (report_wakeup_reason)
3532                 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3533                                               GFP_KERNEL);
3534
3535 done:
3536         if (adapter->nd_info) {
3537                 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3538                         kfree(adapter->nd_info->matches[i]);
3539                 kfree(adapter->nd_info);
3540                 adapter->nd_info = NULL;
3541         }
3542
3543         return 0;
3544 }
3545
3546 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3547                                        bool enabled)
3548 {
3549         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3550
3551         device_set_wakeup_enable(adapter->dev, enabled);
3552 }
3553
3554 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3555                                   struct cfg80211_gtk_rekey_data *data)
3556 {
3557         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3558
3559         return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3560                                 HostCmd_ACT_GEN_SET, 0, data, true);
3561 }
3562
3563 #endif
3564
3565 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3566 {
3567         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3568         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3569         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3570
3571         if ((byte_seq[0] & 0x01) &&
3572             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3573                 return PACKET_TYPE_UNICAST;
3574         else if (!memcmp(byte_seq, bc_mac, 4))
3575                 return PACKET_TYPE_BROADCAST;
3576         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3577                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3578                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3579                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3580                 return PACKET_TYPE_MULTICAST;
3581
3582         return 0;
3583 }
3584
3585 static int
3586 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3587                                 struct cfg80211_coalesce_rules *crule,
3588                                 struct mwifiex_coalesce_rule *mrule)
3589 {
3590         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3591         struct filt_field_param *param;
3592         int i;
3593
3594         mrule->max_coalescing_delay = crule->delay;
3595
3596         param = mrule->params;
3597
3598         for (i = 0; i < crule->n_patterns; i++) {
3599                 memset(byte_seq, 0, sizeof(byte_seq));
3600                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3601                                                   byte_seq,
3602                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3603                         mwifiex_dbg(priv->adapter, ERROR,
3604                                     "Pattern not supported\n");
3605                         return -EOPNOTSUPP;
3606                 }
3607
3608                 if (!crule->patterns[i].pkt_offset) {
3609                         u8 pkt_type;
3610
3611                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3612                         if (pkt_type && mrule->pkt_type) {
3613                                 mwifiex_dbg(priv->adapter, ERROR,
3614                                             "Multiple packet types not allowed\n");
3615                                 return -EOPNOTSUPP;
3616                         } else if (pkt_type) {
3617                                 mrule->pkt_type = pkt_type;
3618                                 continue;
3619                         }
3620                 }
3621
3622                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3623                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3624                 else
3625                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3626
3627                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3628                 memcpy(param->operand_byte_stream, byte_seq,
3629                        param->operand_len);
3630                 param->offset = crule->patterns[i].pkt_offset;
3631                 param++;
3632
3633                 mrule->num_of_fields++;
3634         }
3635
3636         if (!mrule->pkt_type) {
3637                 mwifiex_dbg(priv->adapter, ERROR,
3638                             "Packet type can not be determined\n");
3639                 return -EOPNOTSUPP;
3640         }
3641
3642         return 0;
3643 }
3644
3645 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3646                                          struct cfg80211_coalesce *coalesce)
3647 {
3648         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3649         int i, ret;
3650         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3651         struct mwifiex_private *priv =
3652                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3653
3654         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3655         if (!coalesce) {
3656                 mwifiex_dbg(adapter, WARN,
3657                             "Disable coalesce and reset all previous rules\n");
3658                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3659                                         HostCmd_ACT_GEN_SET, 0,
3660                                         &coalesce_cfg, true);
3661         }
3662
3663         coalesce_cfg.num_of_rules = coalesce->n_rules;
3664         for (i = 0; i < coalesce->n_rules; i++) {
3665                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3666                                                       &coalesce_cfg.rule[i]);
3667                 if (ret) {
3668                         mwifiex_dbg(adapter, ERROR,
3669                                     "Recheck the patterns provided for rule %d\n",
3670                                 i + 1);
3671                         return ret;
3672                 }
3673         }
3674
3675         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3676                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3677 }
3678
3679 /* cfg80211 ops handler for tdls_mgmt.
3680  * Function prepares TDLS action frame packets and forwards them to FW
3681  */
3682 static int
3683 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3684                            const u8 *peer, u8 action_code, u8 dialog_token,
3685                            u16 status_code, u32 peer_capability,
3686                            bool initiator, const u8 *extra_ies,
3687                            size_t extra_ies_len)
3688 {
3689         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3690         int ret;
3691
3692         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3693                 return -ENOTSUPP;
3694
3695         /* make sure we are in station mode and connected */
3696         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3697                 return -ENOTSUPP;
3698
3699         switch (action_code) {
3700         case WLAN_TDLS_SETUP_REQUEST:
3701                 mwifiex_dbg(priv->adapter, MSG,
3702                             "Send TDLS Setup Request to %pM status_code=%d\n",
3703                             peer, status_code);
3704                 mwifiex_add_auto_tdls_peer(priv, peer);
3705                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3706                                                    dialog_token, status_code,
3707                                                    extra_ies, extra_ies_len);
3708                 break;
3709         case WLAN_TDLS_SETUP_RESPONSE:
3710                 mwifiex_add_auto_tdls_peer(priv, peer);
3711                 mwifiex_dbg(priv->adapter, MSG,
3712                             "Send TDLS Setup Response to %pM status_code=%d\n",
3713                             peer, status_code);
3714                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3715                                                    dialog_token, status_code,
3716                                                    extra_ies, extra_ies_len);
3717                 break;
3718         case WLAN_TDLS_SETUP_CONFIRM:
3719                 mwifiex_dbg(priv->adapter, MSG,
3720                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3721                             status_code);
3722                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3723                                                    dialog_token, status_code,
3724                                                    extra_ies, extra_ies_len);
3725                 break;
3726         case WLAN_TDLS_TEARDOWN:
3727                 mwifiex_dbg(priv->adapter, MSG,
3728                             "Send TDLS Tear down to %pM\n", peer);
3729                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3730                                                    dialog_token, status_code,
3731                                                    extra_ies, extra_ies_len);
3732                 break;
3733         case WLAN_TDLS_DISCOVERY_REQUEST:
3734                 mwifiex_dbg(priv->adapter, MSG,
3735                             "Send TDLS Discovery Request to %pM\n", peer);
3736                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3737                                                    dialog_token, status_code,
3738                                                    extra_ies, extra_ies_len);
3739                 break;
3740         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3741                 mwifiex_dbg(priv->adapter, MSG,
3742                             "Send TDLS Discovery Response to %pM\n", peer);
3743                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3744                                                    dialog_token, status_code,
3745                                                    extra_ies, extra_ies_len);
3746                 break;
3747         default:
3748                 mwifiex_dbg(priv->adapter, ERROR,
3749                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3750                 ret = -EINVAL;
3751                 break;
3752         }
3753
3754         return ret;
3755 }
3756
3757 static int
3758 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3759                            const u8 *peer, enum nl80211_tdls_operation action)
3760 {
3761         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3762
3763         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3764             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3765                 return -ENOTSUPP;
3766
3767         /* make sure we are in station mode and connected */
3768         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3769                 return -ENOTSUPP;
3770
3771         mwifiex_dbg(priv->adapter, MSG,
3772                     "TDLS peer=%pM, oper=%d\n", peer, action);
3773
3774         switch (action) {
3775         case NL80211_TDLS_ENABLE_LINK:
3776                 action = MWIFIEX_TDLS_ENABLE_LINK;
3777                 break;
3778         case NL80211_TDLS_DISABLE_LINK:
3779                 action = MWIFIEX_TDLS_DISABLE_LINK;
3780                 break;
3781         case NL80211_TDLS_TEARDOWN:
3782                 /* shouldn't happen!*/
3783                 mwifiex_dbg(priv->adapter, ERROR,
3784                             "tdls_oper: teardown from driver not supported\n");
3785                 return -EINVAL;
3786         case NL80211_TDLS_SETUP:
3787                 /* shouldn't happen!*/
3788                 mwifiex_dbg(priv->adapter, ERROR,
3789                             "tdls_oper: setup from driver not supported\n");
3790                 return -EINVAL;
3791         case NL80211_TDLS_DISCOVERY_REQ:
3792                 /* shouldn't happen!*/
3793                 mwifiex_dbg(priv->adapter, ERROR,
3794                             "tdls_oper: discovery from driver not supported\n");
3795                 return -EINVAL;
3796         default:
3797                 mwifiex_dbg(priv->adapter, ERROR,
3798                             "tdls_oper: operation not supported\n");
3799                 return -ENOTSUPP;
3800         }
3801
3802         return mwifiex_tdls_oper(priv, peer, action);
3803 }
3804
3805 static int
3806 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3807                                   const u8 *addr, u8 oper_class,
3808                                   struct cfg80211_chan_def *chandef)
3809 {
3810         struct mwifiex_sta_node *sta_ptr;
3811         unsigned long flags;
3812         u16 chan;
3813         u8 second_chan_offset, band;
3814         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3815
3816         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3817         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3818         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3819
3820         if (!sta_ptr) {
3821                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3822                           __func__, addr);
3823                 return -ENOENT;
3824         }
3825
3826         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3827               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3828                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3829                 return -ENOENT;
3830         }
3831
3832         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3833             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3834                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3835                 return -EALREADY;
3836         }
3837
3838         chan = chandef->chan->hw_value;
3839         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3840         band = chandef->chan->band;
3841         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3842
3843         return 0;
3844 }
3845
3846 static void
3847 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3848                                          struct net_device *dev,
3849                                          const u8 *addr)
3850 {
3851         struct mwifiex_sta_node *sta_ptr;
3852         unsigned long flags;
3853         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3854
3855         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3856         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3857         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3858
3859         if (!sta_ptr) {
3860                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3861                           __func__, addr);
3862         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3863                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3864                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3865                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3866                           addr);
3867         } else
3868                 mwifiex_stop_tdls_cs(priv, addr);
3869 }
3870
3871 static int
3872 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3873                              const u8 *mac, struct station_parameters *params)
3874 {
3875         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3876
3877         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3878                 return -ENOTSUPP;
3879
3880         /* make sure we are in station mode and connected */
3881         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3882                 return -ENOTSUPP;
3883
3884         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3885 }
3886
3887 static int
3888 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3889                                 struct cfg80211_csa_settings *params)
3890 {
3891         struct ieee_types_header *chsw_ie;
3892         struct ieee80211_channel_sw_ie *channel_sw;
3893         int chsw_msec;
3894         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3895
3896         if (priv->adapter->scan_processing) {
3897                 mwifiex_dbg(priv->adapter, ERROR,
3898                             "radar detection: scan in process...\n");
3899                 return -EBUSY;
3900         }
3901
3902         if (priv->wdev.cac_started)
3903                 return -EBUSY;
3904
3905         if (cfg80211_chandef_identical(&params->chandef,
3906                                        &priv->dfs_chandef))
3907                 return -EINVAL;
3908
3909         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3910                                            params->beacon_csa.tail,
3911                                            params->beacon_csa.tail_len);
3912         if (!chsw_ie) {
3913                 mwifiex_dbg(priv->adapter, ERROR,
3914                             "Could not parse channel switch announcement IE\n");
3915                 return -EINVAL;
3916         }
3917
3918         channel_sw = (void *)(chsw_ie + 1);
3919         if (channel_sw->mode) {
3920                 if (netif_carrier_ok(priv->netdev))
3921                         netif_carrier_off(priv->netdev);
3922                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3923         }
3924
3925         if (mwifiex_del_mgmt_ies(priv))
3926                 mwifiex_dbg(priv->adapter, ERROR,
3927                             "Failed to delete mgmt IEs!\n");
3928
3929         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3930                 mwifiex_dbg(priv->adapter, ERROR,
3931                             "%s: setting mgmt ies failed\n", __func__);
3932                 return -EFAULT;
3933         }
3934
3935         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3936         memcpy(&priv->beacon_after, &params->beacon_after,
3937                sizeof(priv->beacon_after));
3938
3939         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3940         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3941                            msecs_to_jiffies(chsw_msec));
3942         return 0;
3943 }
3944
3945 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3946                                         struct wireless_dev *wdev,
3947                                         struct cfg80211_chan_def *chandef)
3948 {
3949         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3950         struct mwifiex_bssdescriptor *curr_bss;
3951         struct ieee80211_channel *chan;
3952         u8 second_chan_offset;
3953         enum nl80211_channel_type chan_type;
3954         enum nl80211_band band;
3955         int freq;
3956         int ret = -ENODATA;
3957
3958         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3959             cfg80211_chandef_valid(&priv->bss_chandef)) {
3960                 *chandef = priv->bss_chandef;
3961                 ret = 0;
3962         } else if (priv->media_connected) {
3963                 curr_bss = &priv->curr_bss_params.bss_descriptor;
3964                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3965                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3966                 chan = ieee80211_get_channel(wiphy, freq);
3967
3968                 if (priv->ht_param_present) {
3969                         second_chan_offset = priv->assoc_resp_ht_param &
3970                                         IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3971                         chan_type = mwifiex_sec_chan_offset_to_chan_type
3972                                                         (second_chan_offset);
3973                         cfg80211_chandef_create(chandef, chan, chan_type);
3974                 } else {
3975                         cfg80211_chandef_create(chandef, chan,
3976                                                 NL80211_CHAN_NO_HT);
3977                 }
3978                 ret = 0;
3979         }
3980
3981         return ret;
3982 }
3983
3984 #ifdef CONFIG_NL80211_TESTMODE
3985
3986 enum mwifiex_tm_attr {
3987         __MWIFIEX_TM_ATTR_INVALID       = 0,
3988         MWIFIEX_TM_ATTR_CMD             = 1,
3989         MWIFIEX_TM_ATTR_DATA            = 2,
3990
3991         /* keep last */
3992         __MWIFIEX_TM_ATTR_AFTER_LAST,
3993         MWIFIEX_TM_ATTR_MAX             = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
3994 };
3995
3996 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
3997         [MWIFIEX_TM_ATTR_CMD]           = { .type = NLA_U32 },
3998         [MWIFIEX_TM_ATTR_DATA]          = { .type = NLA_BINARY,
3999                                             .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4000 };
4001
4002 enum mwifiex_tm_command {
4003         MWIFIEX_TM_CMD_HOSTCMD  = 0,
4004 };
4005
4006 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4007                           void *data, int len)
4008 {
4009         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4010         struct mwifiex_ds_misc_cmd *hostcmd;
4011         struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4012         struct sk_buff *skb;
4013         int err;
4014
4015         if (!priv)
4016                 return -EINVAL;
4017
4018         err = nla_parse(tb, MWIFIEX_TM_ATTR_MAX, data, len, mwifiex_tm_policy,
4019                         NULL);
4020         if (err)
4021                 return err;
4022
4023         if (!tb[MWIFIEX_TM_ATTR_CMD])
4024                 return -EINVAL;
4025
4026         switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4027         case MWIFIEX_TM_CMD_HOSTCMD:
4028                 if (!tb[MWIFIEX_TM_ATTR_DATA])
4029                         return -EINVAL;
4030
4031                 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4032                 if (!hostcmd)
4033                         return -ENOMEM;
4034
4035                 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4036                 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4037                        hostcmd->len);
4038
4039                 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4040                         dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4041                         return -EFAULT;
4042                 }
4043
4044                 /* process hostcmd response*/
4045                 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4046                 if (!skb)
4047                         return -ENOMEM;
4048                 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4049                               hostcmd->len, hostcmd->cmd);
4050                 if (err) {
4051                         kfree_skb(skb);
4052                         return -EMSGSIZE;
4053                 }
4054
4055                 err = cfg80211_testmode_reply(skb);
4056                 kfree(hostcmd);
4057                 return err;
4058         default:
4059                 return -EOPNOTSUPP;
4060         }
4061 }
4062 #endif
4063
4064 static int
4065 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4066                                        struct net_device *dev,
4067                                        struct cfg80211_chan_def *chandef,
4068                                        u32 cac_time_ms)
4069 {
4070         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4071         struct mwifiex_radar_params radar_params;
4072
4073         if (priv->adapter->scan_processing) {
4074                 mwifiex_dbg(priv->adapter, ERROR,
4075                             "radar detection: scan already in process...\n");
4076                 return -EBUSY;
4077         }
4078
4079         if (!mwifiex_is_11h_active(priv)) {
4080                 mwifiex_dbg(priv->adapter, INFO,
4081                             "Enable 11h extensions in FW\n");
4082                 if (mwifiex_11h_activate(priv, true)) {
4083                         mwifiex_dbg(priv->adapter, ERROR,
4084                                     "Failed to activate 11h extensions!!");
4085                         return -1;
4086                 }
4087                 priv->state_11h.is_11h_active = true;
4088         }
4089
4090         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4091         radar_params.chandef = chandef;
4092         radar_params.cac_time_ms = cac_time_ms;
4093
4094         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4095
4096         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4097                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4098                 return -1;
4099
4100         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4101                            msecs_to_jiffies(cac_time_ms));
4102         return 0;
4103 }
4104
4105 static int
4106 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4107                                 const u8 *mac,
4108                                 struct station_parameters *params)
4109 {
4110         int ret;
4111         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4112
4113         /* we support change_station handler only for TDLS peers*/
4114         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4115                 return -ENOTSUPP;
4116
4117         /* make sure we are in station mode and connected */
4118         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4119                 return -ENOTSUPP;
4120
4121         priv->sta_params = params;
4122
4123         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4124         priv->sta_params = NULL;
4125
4126         return ret;
4127 }
4128
4129 /* station cfg80211 operations */
4130 static struct cfg80211_ops mwifiex_cfg80211_ops = {
4131         .add_virtual_intf = mwifiex_add_virtual_intf,
4132         .del_virtual_intf = mwifiex_del_virtual_intf,
4133         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4134         .scan = mwifiex_cfg80211_scan,
4135         .connect = mwifiex_cfg80211_connect,
4136         .disconnect = mwifiex_cfg80211_disconnect,
4137         .get_station = mwifiex_cfg80211_get_station,
4138         .dump_station = mwifiex_cfg80211_dump_station,
4139         .dump_survey = mwifiex_cfg80211_dump_survey,
4140         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4141         .join_ibss = mwifiex_cfg80211_join_ibss,
4142         .leave_ibss = mwifiex_cfg80211_leave_ibss,
4143         .add_key = mwifiex_cfg80211_add_key,
4144         .del_key = mwifiex_cfg80211_del_key,
4145         .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4146         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4147         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
4148         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4149         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4150         .set_default_key = mwifiex_cfg80211_set_default_key,
4151         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4152         .set_tx_power = mwifiex_cfg80211_set_tx_power,
4153         .get_tx_power = mwifiex_cfg80211_get_tx_power,
4154         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4155         .start_ap = mwifiex_cfg80211_start_ap,
4156         .stop_ap = mwifiex_cfg80211_stop_ap,
4157         .change_beacon = mwifiex_cfg80211_change_beacon,
4158         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4159         .set_antenna = mwifiex_cfg80211_set_antenna,
4160         .get_antenna = mwifiex_cfg80211_get_antenna,
4161         .del_station = mwifiex_cfg80211_del_station,
4162         .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4163         .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4164 #ifdef CONFIG_PM
4165         .suspend = mwifiex_cfg80211_suspend,
4166         .resume = mwifiex_cfg80211_resume,
4167         .set_wakeup = mwifiex_cfg80211_set_wakeup,
4168         .set_rekey_data = mwifiex_set_rekey_data,
4169 #endif
4170         .set_coalesce = mwifiex_cfg80211_set_coalesce,
4171         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4172         .tdls_oper = mwifiex_cfg80211_tdls_oper,
4173         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4174         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4175         .add_station = mwifiex_cfg80211_add_station,
4176         .change_station = mwifiex_cfg80211_change_station,
4177         CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4178         .get_channel = mwifiex_cfg80211_get_channel,
4179         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4180         .channel_switch = mwifiex_cfg80211_channel_switch,
4181 };
4182
4183 #ifdef CONFIG_PM
4184 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4185         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4186                 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4187                 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4188         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4189         .pattern_min_len = 1,
4190         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4191         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4192         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4193 };
4194 #endif
4195
4196 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4197 {
4198         if (!alpha2 || strlen(alpha2) != 2)
4199                 return false;
4200
4201         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4202                 return true;
4203
4204         return false;
4205 }
4206
4207 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4208         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4209         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4210         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4211         .pattern_min_len = 1,
4212         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4213         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4214 };
4215
4216 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4217 {
4218         u32 n_channels_bg, n_channels_a = 0;
4219
4220         n_channels_bg = mwifiex_band_2ghz.n_channels;
4221
4222         if (adapter->config_bands & BAND_A)
4223                 n_channels_a = mwifiex_band_5ghz.n_channels;
4224
4225         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
4226         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
4227                                       adapter->num_in_chan_stats);
4228
4229         if (!adapter->chan_stats)
4230                 return -ENOMEM;
4231
4232         return 0;
4233 }
4234
4235 /*
4236  * This function registers the device with CFG802.11 subsystem.
4237  *
4238  * The function creates the wireless device/wiphy, populates it with
4239  * default parameters and handler function pointers, and finally
4240  * registers the device.
4241  */
4242
4243 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4244 {
4245         int ret;
4246         void *wdev_priv;
4247         struct wiphy *wiphy;
4248         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4249         u8 *country_code;
4250         u32 thr, retry;
4251
4252         /* create a new wiphy for use with cfg80211 */
4253         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4254                           sizeof(struct mwifiex_adapter *));
4255         if (!wiphy) {
4256                 mwifiex_dbg(adapter, ERROR,
4257                             "%s: creating new wiphy\n", __func__);
4258                 return -ENOMEM;
4259         }
4260         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4261         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4262         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4263         wiphy->max_remain_on_channel_duration = 5000;
4264         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4265                                  BIT(NL80211_IFTYPE_ADHOC) |
4266                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
4267                                  BIT(NL80211_IFTYPE_P2P_GO) |
4268                                  BIT(NL80211_IFTYPE_AP);
4269
4270         wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4271         if (adapter->config_bands & BAND_A)
4272                 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4273         else
4274                 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4275
4276         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4277                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4278         else if (adapter->is_hw_11ac_capable)
4279                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4280         else
4281                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4282         wiphy->n_iface_combinations = 1;
4283
4284         /* Initialize cipher suits */
4285         wiphy->cipher_suites = mwifiex_cipher_suites;
4286         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4287
4288         if (adapter->regd) {
4289                 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4290                                            REGULATORY_DISABLE_BEACON_HINTS |
4291                                            REGULATORY_COUNTRY_IE_IGNORE;
4292                 wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4293         }
4294
4295         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4296         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4297         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4298                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4299                         WIPHY_FLAG_AP_UAPSD |
4300                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4301                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4302                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
4303
4304         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4305                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4306                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4307
4308 #ifdef CONFIG_PM
4309         wiphy->wowlan = &mwifiex_wowlan_support;
4310 #endif
4311
4312         wiphy->coalesce = &mwifiex_coalesce_support;
4313
4314         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4315                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4316                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4317
4318         wiphy->max_sched_scan_reqs = 1;
4319         wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4320         wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4321         wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4322
4323         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4324         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4325
4326         wiphy->features |= NL80211_FEATURE_HT_IBSS |
4327                            NL80211_FEATURE_INACTIVITY_TIMER |
4328                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
4329                            NL80211_FEATURE_NEED_OBSS_SCAN |
4330                            NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4331                            NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4332                            NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4333
4334         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4335                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4336
4337         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4338                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4339
4340         /* Reserve space for mwifiex specific private data for BSS */
4341         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4342
4343         wiphy->reg_notifier = mwifiex_reg_notifier;
4344
4345         /* Set struct mwifiex_adapter pointer in wiphy_priv */
4346         wdev_priv = wiphy_priv(wiphy);
4347         *(unsigned long *)wdev_priv = (unsigned long)adapter;
4348
4349         set_wiphy_dev(wiphy, priv->adapter->dev);
4350
4351         ret = wiphy_register(wiphy);
4352         if (ret < 0) {
4353                 mwifiex_dbg(adapter, ERROR,
4354                             "%s: wiphy_register failed: %d\n", __func__, ret);
4355                 wiphy_free(wiphy);
4356                 return ret;
4357         }
4358
4359         if (!adapter->regd) {
4360                 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4361                         mwifiex_dbg(adapter, INFO,
4362                                     "driver hint alpha2: %2.2s\n", reg_alpha2);
4363                         regulatory_hint(wiphy, reg_alpha2);
4364                 } else {
4365                         if (adapter->region_code == 0x00) {
4366                                 mwifiex_dbg(adapter, WARN,
4367                                             "Ignore world regulatory domain\n");
4368                         } else {
4369                                 wiphy->regulatory_flags |=
4370                                         REGULATORY_DISABLE_BEACON_HINTS |
4371                                         REGULATORY_COUNTRY_IE_IGNORE;
4372                                 country_code =
4373                                         mwifiex_11d_code_2_region(
4374                                                 adapter->region_code);
4375                                 if (country_code &&
4376                                     regulatory_hint(wiphy, country_code))
4377                                         mwifiex_dbg(priv->adapter, ERROR,
4378                                                     "regulatory_hint() failed\n");
4379                         }
4380                 }
4381         }
4382
4383         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4384                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4385         wiphy->frag_threshold = thr;
4386         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4387                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4388         wiphy->rts_threshold = thr;
4389         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4390                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4391         wiphy->retry_short = (u8) retry;
4392         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4393                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4394         wiphy->retry_long = (u8) retry;
4395
4396         adapter->wiphy = wiphy;
4397         return ret;
4398 }