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
  24 static char *reg_alpha2;
  25 module_param(reg_alpha2, charp, 0);
  26
  27 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  28         {
  29                 .max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
  30                                    BIT(NL80211_IFTYPE_P2P_GO) |
  31                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
  32                                    BIT(NL80211_IFTYPE_AP),
  33         },
  34 };
  35
  36 static const struct ieee80211_iface_combination
  37 mwifiex_iface_comb_ap_sta = {
  38         .limits = mwifiex_ap_sta_limits,
  39         .num_different_channels = 1,
  40         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  41         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  42         .beacon_int_infra_match = true,
  43         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  44                                 BIT(NL80211_CHAN_WIDTH_20) |
  45                                 BIT(NL80211_CHAN_WIDTH_40),
  46 };
  47
  48 static const struct ieee80211_iface_combination
  49 mwifiex_iface_comb_ap_sta_vht = {
  50         .limits = mwifiex_ap_sta_limits,
  51         .num_different_channels = 1,
  52         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  53         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  54         .beacon_int_infra_match = true,
  55         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  56                                 BIT(NL80211_CHAN_WIDTH_20) |
  57                                 BIT(NL80211_CHAN_WIDTH_40) |
  58                                 BIT(NL80211_CHAN_WIDTH_80),
  59 };
  60
  61 static const struct
  62 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  63         .limits = mwifiex_ap_sta_limits,
  64         .num_different_channels = 2,
  65         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  66         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  67         .beacon_int_infra_match = true,
  68 };
  69
  70 /*
  71  * This function maps the nl802.11 channel type into driver channel type.
  72  *
  73  * The mapping is as follows -
  74  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  75  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  76  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  77  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  78  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  79  */
  80 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  81 {
  82         switch (chan_type) {
  83         case NL80211_CHAN_NO_HT:
  84         case NL80211_CHAN_HT20:
  85                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  86         case NL80211_CHAN_HT40PLUS:
  87                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  88         case NL80211_CHAN_HT40MINUS:
  89                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  90         default:
  91                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  92         }
  93 }
  94
  95 /* This function maps IEEE HT secondary channel type to NL80211 channel type
  96  */
  97 u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
  98 {
  99         switch (second_chan_offset) {
 100         case IEEE80211_HT_PARAM_CHA_SEC_NONE:
 101                 return NL80211_CHAN_HT20;
 102         case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 103                 return NL80211_CHAN_HT40PLUS;
 104         case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
 105                 return NL80211_CHAN_HT40MINUS;
 106         default:
 107                 return NL80211_CHAN_HT20;
 108         }
 109 }
 110
 111 /*
 112  * This function checks whether WEP is set.
 113  */
 114 static int
 115 mwifiex_is_alg_wep(u32 cipher)
 116 {
 117         switch (cipher) {
 118         case WLAN_CIPHER_SUITE_WEP40:
 119         case WLAN_CIPHER_SUITE_WEP104:
 120                 return 1;
 121         default:
 122                 break;
 123         }
 124
 125         return 0;
 126 }
 127
 128 /*
 129  * This function retrieves the private structure from kernel wiphy structure.
 130  */
 131 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 132 {
 133         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 134 }
 135
 136 /*
 137  * CFG802.11 operation handler to delete a network key.
 138  */
 139 static int
 140 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 141                          u8 key_index, bool pairwise, const u8 *mac_addr)
 142 {
 143         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 144         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 145         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 146
 147         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 148                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 149                 return -EFAULT;
 150         }
 151
 152         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 153         return 0;
 154 }
 155
 156 /*
 157  * This function forms an skb for management frame.
 158  */
 159 static int
 160 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 161 {
 162         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 163         u16 pkt_len;
 164         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 165
 166         pkt_len = len + ETH_ALEN;
 167
 168         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 169                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 170         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 171
 172         memcpy(skb_push(skb, sizeof(tx_control)),
 173                &tx_control, sizeof(tx_control));
 174
 175         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 176
 177         /* Add packet data and address4 */
 178         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 179                sizeof(struct ieee80211_hdr_3addr));
 180         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 181         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 182                buf + sizeof(struct ieee80211_hdr_3addr),
 183                len - sizeof(struct ieee80211_hdr_3addr));
 184
 185         skb->priority = LOW_PRIO_TID;
 186         __net_timestamp(skb);
 187
 188         return 0;
 189 }
 190
 191 /*
 192  * CFG802.11 operation handler to transmit a management frame.
 193  */
 194 static int
 195 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 196                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 197 {
 198         const u8 *buf = params->buf;
 199         size_t len = params->len;
 200         struct sk_buff *skb;
 201         u16 pkt_len;
 202         const struct ieee80211_mgmt *mgmt;
 203         struct mwifiex_txinfo *tx_info;
 204         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 205
 206         if (!buf || !len) {
 207                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 208                 return -EFAULT;
 209         }
 210
 211         mgmt = (const struct ieee80211_mgmt *)buf;
 212         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 213             ieee80211_is_probe_resp(mgmt->frame_control)) {
 214                 /* Since we support offload probe resp, we need to skip probe
 215                  * resp in AP or GO mode */
 216                 mwifiex_dbg(priv->adapter, INFO,
 217                             "info: skip to send probe resp in AP or GO mode\n");
 218                 return 0;
 219         }
 220
 221         pkt_len = len + ETH_ALEN;
 222         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 223                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 224                             pkt_len + sizeof(pkt_len));
 225
 226         if (!skb) {
 227                 mwifiex_dbg(priv->adapter, ERROR,
 228                             "allocate skb failed for management frame\n");
 229                 return -ENOMEM;
 230         }
 231
 232         tx_info = MWIFIEX_SKB_TXCB(skb);
 233         memset(tx_info, 0, sizeof(*tx_info));
 234         tx_info->bss_num = priv->bss_num;
 235         tx_info->bss_type = priv->bss_type;
 236         tx_info->pkt_len = pkt_len;
 237
 238         mwifiex_form_mgmt_frame(skb, buf, len);
 239         *cookie = prandom_u32() | 1;
 240
 241         if (ieee80211_is_action(mgmt->frame_control))
 242                 skb = mwifiex_clone_skb_for_tx_status(priv,
 243                                                       skb,
 244                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 245         else
 246                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 247                                         GFP_ATOMIC);
 248
 249         mwifiex_queue_tx_pkt(priv, skb);
 250
 251         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 252         return 0;
 253 }
 254
 255 /*
 256  * CFG802.11 operation handler to register a mgmt frame.
 257  */
 258 static void
 259 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 260                                      struct wireless_dev *wdev,
 261                                      u16 frame_type, bool reg)
 262 {
 263         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 264         u32 mask;
 265
 266         if (reg)
 267                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 268         else
 269                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 270
 271         if (mask != priv->mgmt_frame_mask) {
 272                 priv->mgmt_frame_mask = mask;
 273                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 274                                  HostCmd_ACT_GEN_SET, 0,
 275                                  &priv->mgmt_frame_mask, false);
 276                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 277         }
 278 }
 279
 280 /*
 281  * CFG802.11 operation handler to remain on channel.
 282  */
 283 static int
 284 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 285                                    struct wireless_dev *wdev,
 286                                    struct ieee80211_channel *chan,
 287                                    unsigned int duration, u64 *cookie)
 288 {
 289         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 290         int ret;
 291
 292         if (!chan || !cookie) {
 293                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 294                 return -EINVAL;
 295         }
 296
 297         if (priv->roc_cfg.cookie) {
 298                 mwifiex_dbg(priv->adapter, INFO,
 299                             "info: ongoing ROC, cookie = 0x%llx\n",
 300                             priv->roc_cfg.cookie);
 301                 return -EBUSY;
 302         }
 303
 304         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 305                                          duration);
 306
 307         if (!ret) {
 308                 *cookie = prandom_u32() | 1;
 309                 priv->roc_cfg.cookie = *cookie;
 310                 priv->roc_cfg.chan = *chan;
 311
 312                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 313                                           duration, GFP_ATOMIC);
 314
 315                 mwifiex_dbg(priv->adapter, INFO,
 316                             "info: ROC, cookie = 0x%llx\n", *cookie);
 317         }
 318
 319         return ret;
 320 }
 321
 322 /*
 323  * CFG802.11 operation handler to cancel remain on channel.
 324  */
 325 static int
 326 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 327                                           struct wireless_dev *wdev, u64 cookie)
 328 {
 329         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 330         int ret;
 331
 332         if (cookie != priv->roc_cfg.cookie)
 333                 return -ENOENT;
 334
 335         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 336                                          &priv->roc_cfg.chan, 0);
 337
 338         if (!ret) {
 339                 cfg80211_remain_on_channel_expired(wdev, cookie,
 340                                                    &priv->roc_cfg.chan,
 341                                                    GFP_ATOMIC);
 342
 343                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 344
 345                 mwifiex_dbg(priv->adapter, INFO,
 346                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
 347         }
 348
 349         return ret;
 350 }
 351
 352 /*
 353  * CFG802.11 operation handler to set Tx power.
 354  */
 355 static int
 356 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 357                               struct wireless_dev *wdev,
 358                               enum nl80211_tx_power_setting type,
 359                               int mbm)
 360 {
 361         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 362         struct mwifiex_private *priv;
 363         struct mwifiex_power_cfg power_cfg;
 364         int dbm = MBM_TO_DBM(mbm);
 365
 366         if (type == NL80211_TX_POWER_FIXED) {
 367                 power_cfg.is_power_auto = 0;
 368                 power_cfg.power_level = dbm;
 369         } else {
 370                 power_cfg.is_power_auto = 1;
 371         }
 372
 373         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 374
 375         return mwifiex_set_tx_power(priv, &power_cfg);
 376 }
 377
 378 /*
 379  * CFG802.11 operation handler to set Power Save option.
 380  *
 381  * The timeout value, if provided, is currently ignored.
 382  */
 383 static int
 384 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 385                                 struct net_device *dev,
 386                                 bool enabled, int timeout)
 387 {
 388         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 389         u32 ps_mode;
 390
 391         if (timeout)
 392                 mwifiex_dbg(priv->adapter, INFO,
 393                             "info: ignore timeout value for IEEE Power Save\n");
 394
 395         ps_mode = enabled;
 396
 397         return mwifiex_drv_set_power(priv, &ps_mode);
 398 }
 399
 400 /*
 401  * CFG802.11 operation handler to set the default network key.
 402  */
 403 static int
 404 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 405                                  u8 key_index, bool unicast,
 406                                  bool multicast)
 407 {
 408         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 409
 410         /* Return if WEP key not configured */
 411         if (!priv->sec_info.wep_enabled)
 412                 return 0;
 413
 414         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 415                 priv->wep_key_curr_index = key_index;
 416         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 417                                       NULL, 0)) {
 418                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 419                 return -EFAULT;
 420         }
 421
 422         return 0;
 423 }
 424
 425 /*
 426  * CFG802.11 operation handler to add a network key.
 427  */
 428 static int
 429 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 430                          u8 key_index, bool pairwise, const u8 *mac_addr,
 431                          struct key_params *params)
 432 {
 433         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 434         struct mwifiex_wep_key *wep_key;
 435         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 436         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 437
 438         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 439             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 440              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 441                 if (params->key && params->key_len) {
 442                         wep_key = &priv->wep_key[key_index];
 443                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 444                         memcpy(wep_key->key_material, params->key,
 445                                params->key_len);
 446                         wep_key->key_index = key_index;
 447                         wep_key->key_length = params->key_len;
 448                         priv->sec_info.wep_enabled = 1;
 449                 }
 450                 return 0;
 451         }
 452
 453         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 454                                key_index, peer_mac, 0)) {
 455                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 456                 return -EFAULT;
 457         }
 458
 459         return 0;
 460 }
 461
 462 /*
 463  * This function sends domain information to the firmware.
 464  *
 465  * The following information are passed to the firmware -
 466  *      - Country codes
 467  *      - Sub bands (first channel, number of channels, maximum Tx power)
 468  */
 469 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 470 {
 471         u8 no_of_triplet = 0;
 472         struct ieee80211_country_ie_triplet *t;
 473         u8 no_of_parsed_chan = 0;
 474         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 475         u8 i, flag = 0;
 476         enum ieee80211_band band;
 477         struct ieee80211_supported_band *sband;
 478         struct ieee80211_channel *ch;
 479         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 480         struct mwifiex_private *priv;
 481         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 482
 483         /* Set country code */
 484         domain_info->country_code[0] = adapter->country_code[0];
 485         domain_info->country_code[1] = adapter->country_code[1];
 486         domain_info->country_code[2] = ' ';
 487
 488         band = mwifiex_band_to_radio_type(adapter->config_bands);
 489         if (!wiphy->bands[band]) {
 490                 mwifiex_dbg(adapter, ERROR,
 491                             "11D: setting domain info in FW\n");
 492                 return -1;
 493         }
 494
 495         sband = wiphy->bands[band];
 496
 497         for (i = 0; i < sband->n_channels ; i++) {
 498                 ch = &sband->channels[i];
 499                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 500                         continue;
 501
 502                 if (!flag) {
 503                         flag = 1;
 504                         first_chan = (u32) ch->hw_value;
 505                         next_chan = first_chan;
 506                         max_pwr = ch->max_power;
 507                         no_of_parsed_chan = 1;
 508                         continue;
 509                 }
 510
 511                 if (ch->hw_value == next_chan + 1 &&
 512                     ch->max_power == max_pwr) {
 513                         next_chan++;
 514                         no_of_parsed_chan++;
 515                 } else {
 516                         t = &domain_info->triplet[no_of_triplet];
 517                         t->chans.first_channel = first_chan;
 518                         t->chans.num_channels = no_of_parsed_chan;
 519                         t->chans.max_power = max_pwr;
 520                         no_of_triplet++;
 521                         first_chan = (u32) ch->hw_value;
 522                         next_chan = first_chan;
 523                         max_pwr = ch->max_power;
 524                         no_of_parsed_chan = 1;
 525                 }
 526         }
 527
 528         if (flag) {
 529                 t = &domain_info->triplet[no_of_triplet];
 530                 t->chans.first_channel = first_chan;
 531                 t->chans.num_channels = no_of_parsed_chan;
 532                 t->chans.max_power = max_pwr;
 533                 no_of_triplet++;
 534         }
 535
 536         domain_info->no_of_triplet = no_of_triplet;
 537
 538         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 539
 540         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 541                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 542                 mwifiex_dbg(adapter, INFO,
 543                             "11D: setting domain info in FW\n");
 544                 return -1;
 545         }
 546
 547         return 0;
 548 }
 549
 550 /*
 551  * CFG802.11 regulatory domain callback function.
 552  *
 553  * This function is called when the regulatory domain is changed due to the
 554  * following reasons -
 555  *      - Set by driver
 556  *      - Set by system core
 557  *      - Set by user
 558  *      - Set bt Country IE
 559  */
 560 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 561                                  struct regulatory_request *request)
 562 {
 563         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 564         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 565                                                         MWIFIEX_BSS_ROLE_ANY);
 566         mwifiex_dbg(adapter, INFO,
 567                     "info: cfg80211 regulatory domain callback for %c%c\n",
 568                     request->alpha2[0], request->alpha2[1]);
 569
 570         switch (request->initiator) {
 571         case NL80211_REGDOM_SET_BY_DRIVER:
 572         case NL80211_REGDOM_SET_BY_CORE:
 573         case NL80211_REGDOM_SET_BY_USER:
 574         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 575                 break;
 576         default:
 577                 mwifiex_dbg(adapter, ERROR,
 578                             "unknown regdom initiator: %d\n",
 579                             request->initiator);
 580                 return;
 581         }
 582
 583         /* Don't send world or same regdom info to firmware */
 584         if (strncmp(request->alpha2, "00", 2) &&
 585             strncmp(request->alpha2, adapter->country_code,
 586                     sizeof(request->alpha2))) {
 587                 memcpy(adapter->country_code, request->alpha2,
 588                        sizeof(request->alpha2));
 589                 mwifiex_send_domain_info_cmd_fw(wiphy);
 590                 mwifiex_dnld_txpwr_table(priv);
 591         }
 592 }
 593
 594 /*
 595  * This function sets the fragmentation threshold.
 596  *
 597  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 598  * and MWIFIEX_FRAG_MAX_VALUE.
 599  */
 600 static int
 601 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 602 {
 603         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 604             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 605                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 606
 607         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 608                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 609                                 &frag_thr, true);
 610 }
 611
 612 /*
 613  * This function sets the RTS threshold.
 614
 615  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 616  * and MWIFIEX_RTS_MAX_VALUE.
 617  */
 618 static int
 619 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 620 {
 621         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 622                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 623
 624         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 625                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 626                                 &rts_thr, true);
 627 }
 628
 629 /*
 630  * CFG802.11 operation handler to set wiphy parameters.
 631  *
 632  * This function can be used to set the RTS threshold and the
 633  * Fragmentation threshold of the driver.
 634  */
 635 static int
 636 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 637 {
 638         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 639         struct mwifiex_private *priv;
 640         struct mwifiex_uap_bss_param *bss_cfg;
 641         int ret;
 642
 643         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 644
 645         switch (priv->bss_role) {
 646         case MWIFIEX_BSS_ROLE_UAP:
 647                 if (priv->bss_started) {
 648                         mwifiex_dbg(adapter, ERROR,
 649                                     "cannot change wiphy params when bss started");
 650                         return -EINVAL;
 651                 }
 652
 653                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 654                 if (!bss_cfg)
 655                         return -ENOMEM;
 656
 657                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 658
 659                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 660                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 661                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 662                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 663                 if (changed & WIPHY_PARAM_RETRY_LONG)
 664                         bss_cfg->retry_limit = wiphy->retry_long;
 665
 666                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 667                                        HostCmd_ACT_GEN_SET,
 668                                        UAP_BSS_PARAMS_I, bss_cfg,
 669                                        false);
 670
 671                 kfree(bss_cfg);
 672                 if (ret) {
 673                         mwifiex_dbg(adapter, ERROR,
 674                                     "Failed to set wiphy phy params\n");
 675                         return ret;
 676                 }
 677                 break;
 678
 679                 case MWIFIEX_BSS_ROLE_STA:
 680                 if (priv->media_connected) {
 681                         mwifiex_dbg(adapter, ERROR,
 682                                     "cannot change wiphy params when connected");
 683                         return -EINVAL;
 684                 }
 685                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 686                         ret = mwifiex_set_rts(priv,
 687                                               wiphy->rts_threshold);
 688                         if (ret)
 689                                 return ret;
 690                 }
 691                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 692                         ret = mwifiex_set_frag(priv,
 693                                                wiphy->frag_threshold);
 694                         if (ret)
 695                                 return ret;
 696                 }
 697                 break;
 698         }
 699
 700         return 0;
 701 }
 702
 703 static int
 704 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 705 {
 706         u16 mode = P2P_MODE_DISABLE;
 707
 708         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 709                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 710                 return -1;
 711
 712         return 0;
 713 }
 714
 715 /*
 716  * This function initializes the functionalities for P2P client.
 717  * The P2P client initialization sequence is:
 718  * disable -> device -> client
 719  */
 720 static int
 721 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 722 {
 723         u16 mode;
 724
 725         if (mwifiex_cfg80211_deinit_p2p(priv))
 726                 return -1;
 727
 728         mode = P2P_MODE_DEVICE;
 729         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 730                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 731                 return -1;
 732
 733         mode = P2P_MODE_CLIENT;
 734         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 735                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 736                 return -1;
 737
 738         return 0;
 739 }
 740
 741 /*
 742  * This function initializes the functionalities for P2P GO.
 743  * The P2P GO initialization sequence is:
 744  * disable -> device -> GO
 745  */
 746 static int
 747 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 748 {
 749         u16 mode;
 750
 751         if (mwifiex_cfg80211_deinit_p2p(priv))
 752                 return -1;
 753
 754         mode = P2P_MODE_DEVICE;
 755         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 756                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 757                 return -1;
 758
 759         mode = P2P_MODE_GO;
 760         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 761                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 762                 return -1;
 763
 764         return 0;
 765 }
 766
 767 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 768 {
 769         struct mwifiex_adapter *adapter = priv->adapter;
 770         unsigned long flags;
 771
 772         priv->mgmt_frame_mask = 0;
 773         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 774                              HostCmd_ACT_GEN_SET, 0,
 775                              &priv->mgmt_frame_mask, false)) {
 776                 mwifiex_dbg(adapter, ERROR,
 777                             "could not unregister mgmt frame rx\n");
 778                 return -1;
 779         }
 780
 781         mwifiex_deauthenticate(priv, NULL);
 782
 783         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 784         adapter->main_locked = true;
 785         if (adapter->mwifiex_processing) {
 786                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 787                 flush_workqueue(adapter->workqueue);
 788         } else {
 789                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 790         }
 791
 792         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 793         adapter->rx_locked = true;
 794         if (adapter->rx_processing) {
 795                 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 796                 flush_workqueue(adapter->rx_workqueue);
 797         } else {
 798         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 799         }
 800
 801         mwifiex_free_priv(priv);
 802         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 803         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 804         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 805
 806         return 0;
 807 }
 808
 809 static int
 810 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 811                              struct net_device *dev,
 812                              enum nl80211_iftype type)
 813 {
 814         struct mwifiex_adapter *adapter = priv->adapter;
 815         unsigned long flags;
 816
 817         mwifiex_init_priv(priv);
 818
 819         priv->bss_mode = type;
 820         priv->wdev.iftype = type;
 821
 822         mwifiex_init_priv_params(priv, priv->netdev);
 823         priv->bss_started = 0;
 824
 825         switch (type) {
 826         case NL80211_IFTYPE_STATION:
 827         case NL80211_IFTYPE_ADHOC:
 828                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 829                          MWIFIEX_BSS_TYPE_STA);
 830                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 831                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 832                 break;
 833         case NL80211_IFTYPE_P2P_CLIENT:
 834                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 835                          MWIFIEX_BSS_TYPE_P2P);
 836                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 837                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 838                 break;
 839         case NL80211_IFTYPE_P2P_GO:
 840                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 841                          MWIFIEX_BSS_TYPE_P2P);
 842                 priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 843                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 844                 break;
 845         case NL80211_IFTYPE_AP:
 846                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 847                          MWIFIEX_BSS_TYPE_UAP);
 848                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 849                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 850                 break;
 851         default:
 852                 mwifiex_dbg(adapter, ERROR,
 853                             "%s: changing to %d not supported\n",
 854                             dev->name, type);
 855                 return -EOPNOTSUPP;
 856         }
 857
 858         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 859         adapter->main_locked = false;
 860         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 861
 862         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 863         adapter->rx_locked = false;
 864         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 865
 866         return 0;
 867 }
 868
 869 static int
 870 mwifiex_change_vif_to_p2p(struct net_device *dev,
 871                           enum nl80211_iftype curr_iftype,
 872                           enum nl80211_iftype type, u32 *flags,
 873                           struct vif_params *params)
 874 {
 875         struct mwifiex_private *priv;
 876         struct mwifiex_adapter *adapter;
 877
 878         priv = mwifiex_netdev_get_priv(dev);
 879
 880         if (!priv)
 881                 return -1;
 882
 883         adapter = priv->adapter;
 884
 885         if (adapter->curr_iface_comb.p2p_intf ==
 886             adapter->iface_limit.p2p_intf) {
 887                 mwifiex_dbg(adapter, ERROR,
 888                             "cannot create multiple P2P ifaces\n");
 889                 return -1;
 890         }
 891
 892         mwifiex_dbg(adapter, INFO,
 893                     "%s: changing role to p2p\n", dev->name);
 894
 895         if (mwifiex_deinit_priv_params(priv))
 896                 return -1;
 897         if (mwifiex_init_new_priv_params(priv, dev, type))
 898                 return -1;
 899
 900         switch (type) {
 901         case NL80211_IFTYPE_P2P_CLIENT:
 902                 if (mwifiex_cfg80211_init_p2p_client(priv))
 903                         return -EFAULT;
 904                 break;
 905         case NL80211_IFTYPE_P2P_GO:
 906                 if (mwifiex_cfg80211_init_p2p_go(priv))
 907                         return -EFAULT;
 908                 break;
 909         default:
 910                 mwifiex_dbg(adapter, ERROR,
 911                             "%s: changing to %d not supported\n",
 912                             dev->name, type);
 913                 return -EOPNOTSUPP;
 914         }
 915
 916         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 917                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 918                 return -1;
 919
 920         if (mwifiex_sta_init_cmd(priv, false, false))
 921                 return -1;
 922
 923         switch (curr_iftype) {
 924         case NL80211_IFTYPE_STATION:
 925         case NL80211_IFTYPE_ADHOC:
 926                 adapter->curr_iface_comb.sta_intf--;
 927                 break;
 928         case NL80211_IFTYPE_AP:
 929                 adapter->curr_iface_comb.uap_intf--;
 930                 break;
 931         default:
 932                 break;
 933         }
 934
 935         adapter->curr_iface_comb.p2p_intf++;
 936         dev->ieee80211_ptr->iftype = type;
 937
 938         return 0;
 939 }
 940
 941 static int
 942 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
 943                                 enum nl80211_iftype curr_iftype,
 944                                 enum nl80211_iftype type, u32 *flags,
 945                                 struct vif_params *params)
 946 {
 947         struct mwifiex_private *priv;
 948         struct mwifiex_adapter *adapter;
 949
 950         priv = mwifiex_netdev_get_priv(dev);
 951
 952         if (!priv)
 953                 return -1;
 954
 955         adapter = priv->adapter;
 956
 957         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
 958              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
 959             (adapter->curr_iface_comb.sta_intf ==
 960              adapter->iface_limit.sta_intf)) {
 961                 mwifiex_dbg(adapter, ERROR,
 962                             "cannot create multiple station/adhoc ifaces\n");
 963                 return -1;
 964         }
 965
 966         if (type == NL80211_IFTYPE_STATION)
 967                 mwifiex_dbg(adapter, INFO,
 968                             "%s: changing role to station\n", dev->name);
 969         else
 970                 mwifiex_dbg(adapter, INFO,
 971                             "%s: changing role to adhoc\n", dev->name);
 972
 973         if (mwifiex_deinit_priv_params(priv))
 974                 return -1;
 975         if (mwifiex_init_new_priv_params(priv, dev, type))
 976                 return -1;
 977         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 978                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 979                 return -1;
 980         if (mwifiex_sta_init_cmd(priv, false, false))
 981                 return -1;
 982
 983         switch (curr_iftype) {
 984         case NL80211_IFTYPE_P2P_CLIENT:
 985         case NL80211_IFTYPE_P2P_GO:
 986                 adapter->curr_iface_comb.p2p_intf--;
 987                 break;
 988         case NL80211_IFTYPE_AP:
 989                 adapter->curr_iface_comb.uap_intf--;
 990                 break;
 991         default:
 992                 break;
 993         }
 994
 995         adapter->curr_iface_comb.sta_intf++;
 996         dev->ieee80211_ptr->iftype = type;
 997         return 0;
 998 }
 999
1000 static int
1001 mwifiex_change_vif_to_ap(struct net_device *dev,
1002                          enum nl80211_iftype curr_iftype,
1003                          enum nl80211_iftype type, u32 *flags,
1004                          struct vif_params *params)
1005 {
1006         struct mwifiex_private *priv;
1007         struct mwifiex_adapter *adapter;
1008
1009         priv = mwifiex_netdev_get_priv(dev);
1010
1011         if (!priv)
1012                 return -1;
1013
1014         adapter = priv->adapter;
1015
1016         if (adapter->curr_iface_comb.uap_intf ==
1017             adapter->iface_limit.uap_intf) {
1018                 mwifiex_dbg(adapter, ERROR,
1019                             "cannot create multiple AP ifaces\n");
1020                 return -1;
1021         }
1022
1023         mwifiex_dbg(adapter, INFO,
1024                     "%s: changing role to AP\n", dev->name);
1025
1026         if (mwifiex_deinit_priv_params(priv))
1027                 return -1;
1028         if (mwifiex_init_new_priv_params(priv, dev, type))
1029                 return -1;
1030         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1031                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1032                 return -1;
1033         if (mwifiex_sta_init_cmd(priv, false, false))
1034                 return -1;
1035
1036         switch (curr_iftype) {
1037         case NL80211_IFTYPE_P2P_CLIENT:
1038         case NL80211_IFTYPE_P2P_GO:
1039                 adapter->curr_iface_comb.p2p_intf--;
1040                 break;
1041         case NL80211_IFTYPE_STATION:
1042         case NL80211_IFTYPE_ADHOC:
1043                 adapter->curr_iface_comb.sta_intf--;
1044                 break;
1045         default:
1046                 break;
1047         }
1048
1049         adapter->curr_iface_comb.uap_intf++;
1050         dev->ieee80211_ptr->iftype = type;
1051         return 0;
1052 }
1053 /*
1054  * CFG802.11 operation handler to change interface type.
1055  */
1056 static int
1057 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1058                                      struct net_device *dev,
1059                                      enum nl80211_iftype type, u32 *flags,
1060                                      struct vif_params *params)
1061 {
1062         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1063         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1064
1065         switch (curr_iftype) {
1066         case NL80211_IFTYPE_ADHOC:
1067                 switch (type) {
1068                 case NL80211_IFTYPE_STATION:
1069                         priv->bss_mode = type;
1070                         priv->sec_info.authentication_mode =
1071                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1072                         dev->ieee80211_ptr->iftype = type;
1073                         mwifiex_deauthenticate(priv, NULL);
1074                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1075                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1076                                                 true);
1077                 case NL80211_IFTYPE_P2P_CLIENT:
1078                 case NL80211_IFTYPE_P2P_GO:
1079                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1080                                                          type, flags, params);
1081                 case NL80211_IFTYPE_AP:
1082                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1083                                                         flags, params);
1084                 case NL80211_IFTYPE_UNSPECIFIED:
1085                         mwifiex_dbg(priv->adapter, INFO,
1086                                     "%s: kept type as IBSS\n", dev->name);
1087                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1088                         return 0;
1089                 default:
1090                         mwifiex_dbg(priv->adapter, ERROR,
1091                                     "%s: changing to %d not supported\n",
1092                                     dev->name, type);
1093                         return -EOPNOTSUPP;
1094                 }
1095                 break;
1096         case NL80211_IFTYPE_STATION:
1097                 switch (type) {
1098                 case NL80211_IFTYPE_ADHOC:
1099                         priv->bss_mode = type;
1100                         priv->sec_info.authentication_mode =
1101                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1102                         dev->ieee80211_ptr->iftype = type;
1103                         mwifiex_deauthenticate(priv, NULL);
1104                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1105                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1106                                                 true);
1107                 case NL80211_IFTYPE_P2P_CLIENT:
1108                 case NL80211_IFTYPE_P2P_GO:
1109                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1110                                                          type, flags, params);
1111                 case NL80211_IFTYPE_AP:
1112                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1113                                                         flags, params);
1114                 case NL80211_IFTYPE_UNSPECIFIED:
1115                         mwifiex_dbg(priv->adapter, INFO,
1116                                     "%s: kept type as STA\n", dev->name);
1117                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1118                         return 0;
1119                 default:
1120                         mwifiex_dbg(priv->adapter, ERROR,
1121                                     "%s: changing to %d not supported\n",
1122                                     dev->name, type);
1123                         return -EOPNOTSUPP;
1124                 }
1125                 break;
1126         case NL80211_IFTYPE_AP:
1127                 switch (type) {
1128                 case NL80211_IFTYPE_ADHOC:
1129                 case NL80211_IFTYPE_STATION:
1130                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1131                                                                type, flags,
1132                                                                params);
1133                         break;
1134                 case NL80211_IFTYPE_P2P_CLIENT:
1135                 case NL80211_IFTYPE_P2P_GO:
1136                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1137                                                          type, flags, params);
1138                 case NL80211_IFTYPE_UNSPECIFIED:
1139                         mwifiex_dbg(priv->adapter, INFO,
1140                                     "%s: kept type as AP\n", dev->name);
1141                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1142                         return 0;
1143                 default:
1144                         mwifiex_dbg(priv->adapter, ERROR,
1145                                     "%s: changing to %d not supported\n",
1146                                     dev->name, type);
1147                         return -EOPNOTSUPP;
1148                 }
1149                 break;
1150         case NL80211_IFTYPE_P2P_CLIENT:
1151         case NL80211_IFTYPE_P2P_GO:
1152                 switch (type) {
1153                 case NL80211_IFTYPE_STATION:
1154                         if (mwifiex_cfg80211_deinit_p2p(priv))
1155                                 return -EFAULT;
1156                         priv->adapter->curr_iface_comb.p2p_intf--;
1157                         priv->adapter->curr_iface_comb.sta_intf++;
1158                         dev->ieee80211_ptr->iftype = type;
1159                         break;
1160                 case NL80211_IFTYPE_ADHOC:
1161                         if (mwifiex_cfg80211_deinit_p2p(priv))
1162                                 return -EFAULT;
1163                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1164                                                                type, flags,
1165                                                                params);
1166                         break;
1167                 case NL80211_IFTYPE_AP:
1168                         if (mwifiex_cfg80211_deinit_p2p(priv))
1169                                 return -EFAULT;
1170                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1171                                                         flags, params);
1172                 case NL80211_IFTYPE_UNSPECIFIED:
1173                         mwifiex_dbg(priv->adapter, INFO,
1174                                     "%s: kept type as P2P\n", dev->name);
1175                 case NL80211_IFTYPE_P2P_CLIENT:
1176                 case NL80211_IFTYPE_P2P_GO:
1177                         return 0;
1178                 default:
1179                         mwifiex_dbg(priv->adapter, ERROR,
1180                                     "%s: changing to %d not supported\n",
1181                                     dev->name, type);
1182                         return -EOPNOTSUPP;
1183                 }
1184                 break;
1185         default:
1186                 mwifiex_dbg(priv->adapter, ERROR,
1187                             "%s: unknown iftype: %d\n",
1188                             dev->name, dev->ieee80211_ptr->iftype);
1189                 return -EOPNOTSUPP;
1190         }
1191
1192
1193         return 0;
1194 }
1195
1196 static void
1197 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1198                      struct rate_info *rate)
1199 {
1200         struct mwifiex_adapter *adapter = priv->adapter;
1201
1202         if (adapter->is_hw_11ac_capable) {
1203                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1204                 if (tx_htinfo & BIT(0)) {
1205                         /* HT */
1206                         rate->mcs = priv->tx_rate;
1207                         rate->flags |= RATE_INFO_FLAGS_MCS;
1208                 }
1209                 if (tx_htinfo & BIT(1)) {
1210                         /* VHT */
1211                         rate->mcs = priv->tx_rate & 0x0F;
1212                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1213                 }
1214
1215                 if (tx_htinfo & (BIT(1) | BIT(0))) {
1216                         /* HT or VHT */
1217                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
1218                         case 0:
1219                                 rate->bw = RATE_INFO_BW_20;
1220                                 break;
1221                         case (BIT(2)):
1222                                 rate->bw = RATE_INFO_BW_40;
1223                                 break;
1224                         case (BIT(3)):
1225                                 rate->bw = RATE_INFO_BW_80;
1226                                 break;
1227                         case (BIT(3) | BIT(2)):
1228                                 rate->bw = RATE_INFO_BW_160;
1229                                 break;
1230                         }
1231
1232                         if (tx_htinfo & BIT(4))
1233                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1234
1235                         if ((priv->tx_rate >> 4) == 1)
1236                                 rate->nss = 2;
1237                         else
1238                                 rate->nss = 1;
1239                 }
1240         } else {
1241                 /*
1242                  * Bit 0 in tx_htinfo indicates that current Tx rate
1243                  * is 11n rate. Valid MCS index values for us are 0 to 15.
1244                  */
1245                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1246                         rate->mcs = priv->tx_rate;
1247                         rate->flags |= RATE_INFO_FLAGS_MCS;
1248                         rate->bw = RATE_INFO_BW_20;
1249                         if (tx_htinfo & BIT(1))
1250                                 rate->bw = RATE_INFO_BW_40;
1251                         if (tx_htinfo & BIT(2))
1252                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1253                 }
1254         }
1255 }
1256
1257 /*
1258  * This function dumps the station information on a buffer.
1259  *
1260  * The following information are shown -
1261  *      - Total bytes transmitted
1262  *      - Total bytes received
1263  *      - Total packets transmitted
1264  *      - Total packets received
1265  *      - Signal quality level
1266  *      - Transmission rate
1267  */
1268 static int
1269 mwifiex_dump_station_info(struct mwifiex_private *priv,
1270                           struct mwifiex_sta_node *node,
1271                           struct station_info *sinfo)
1272 {
1273         u32 rate;
1274
1275         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1276                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1277                         BIT(NL80211_STA_INFO_TX_BITRATE) |
1278                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1279
1280         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1281                 if (!node)
1282                         return -ENOENT;
1283
1284                 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1285                                 BIT(NL80211_STA_INFO_TX_FAILED);
1286                 sinfo->inactive_time =
1287                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1288
1289                 sinfo->signal = node->stats.rssi;
1290                 sinfo->signal_avg = node->stats.rssi;
1291                 sinfo->rx_bytes = node->stats.rx_bytes;
1292                 sinfo->tx_bytes = node->stats.tx_bytes;
1293                 sinfo->rx_packets = node->stats.rx_packets;
1294                 sinfo->tx_packets = node->stats.tx_packets;
1295                 sinfo->tx_failed = node->stats.tx_failed;
1296
1297                 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1298                                      &sinfo->txrate);
1299                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1300
1301                 return 0;
1302         }
1303
1304         /* Get signal information from the firmware */
1305         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1306                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1307                 mwifiex_dbg(priv->adapter, ERROR,
1308                             "failed to get signal information\n");
1309                 return -EFAULT;
1310         }
1311
1312         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1313                 mwifiex_dbg(priv->adapter, ERROR,
1314                             "getting data rate error\n");
1315                 return -EFAULT;
1316         }
1317
1318         /* Get DTIM period information from firmware */
1319         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1320                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1321                          &priv->dtim_period, true);
1322
1323         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1324
1325         sinfo->signal_avg = priv->bcn_rssi_avg;
1326         sinfo->rx_bytes = priv->stats.rx_bytes;
1327         sinfo->tx_bytes = priv->stats.tx_bytes;
1328         sinfo->rx_packets = priv->stats.rx_packets;
1329         sinfo->tx_packets = priv->stats.tx_packets;
1330         sinfo->signal = priv->bcn_rssi_avg;
1331         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1332         sinfo->txrate.legacy = rate * 5;
1333
1334         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1335                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1336                 sinfo->bss_param.flags = 0;
1337                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1338                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1339                         sinfo->bss_param.flags |=
1340                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1341                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1342                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1343                         sinfo->bss_param.flags |=
1344                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1345                 sinfo->bss_param.dtim_period = priv->dtim_period;
1346                 sinfo->bss_param.beacon_interval =
1347                         priv->curr_bss_params.bss_descriptor.beacon_period;
1348         }
1349
1350         return 0;
1351 }
1352
1353 /*
1354  * CFG802.11 operation handler to get station information.
1355  *
1356  * This function only works in connected mode, and dumps the
1357  * requested station information, if available.
1358  */
1359 static int
1360 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1361                              const u8 *mac, struct station_info *sinfo)
1362 {
1363         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1364
1365         if (!priv->media_connected)
1366                 return -ENOENT;
1367         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1368                 return -ENOENT;
1369
1370         return mwifiex_dump_station_info(priv, NULL, sinfo);
1371 }
1372
1373 /*
1374  * CFG802.11 operation handler to dump station information.
1375  */
1376 static int
1377 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1378                               int idx, u8 *mac, struct station_info *sinfo)
1379 {
1380         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1381         static struct mwifiex_sta_node *node;
1382
1383         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1384             priv->media_connected && idx == 0) {
1385                 ether_addr_copy(mac, priv->cfg_bssid);
1386                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1387         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1388                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1389                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1390
1391                 if (node && (&node->list == &priv->sta_list)) {
1392                         node = NULL;
1393                         return -ENOENT;
1394                 }
1395
1396                 node = list_prepare_entry(node, &priv->sta_list, list);
1397                 list_for_each_entry_continue(node, &priv->sta_list, list) {
1398                         ether_addr_copy(mac, node->mac_addr);
1399                         return mwifiex_dump_station_info(priv, node, sinfo);
1400                 }
1401         }
1402
1403         return -ENOENT;
1404 }
1405
1406 static int
1407 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1408                              int idx, struct survey_info *survey)
1409 {
1410         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1411         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1412         enum ieee80211_band band;
1413
1414         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1415
1416         memset(survey, 0, sizeof(struct survey_info));
1417
1418         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1419             priv->media_connected && idx == 0) {
1420                         u8 curr_bss_band = priv->curr_bss_params.band;
1421                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1422
1423                         band = mwifiex_band_to_radio_type(curr_bss_band);
1424                         survey->channel = ieee80211_get_channel(wiphy,
1425                                 ieee80211_channel_to_frequency(chan, band));
1426
1427                         if (priv->bcn_nf_last) {
1428                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1429                                 survey->noise = priv->bcn_nf_last;
1430                         }
1431                         return 0;
1432         }
1433
1434         if (idx >= priv->adapter->num_in_chan_stats)
1435                 return -ENOENT;
1436
1437         if (!pchan_stats[idx].cca_scan_dur)
1438                 return 0;
1439
1440         band = pchan_stats[idx].bandcfg;
1441         survey->channel = ieee80211_get_channel(wiphy,
1442             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1443         survey->filled = SURVEY_INFO_NOISE_DBM |
1444                          SURVEY_INFO_TIME |
1445                          SURVEY_INFO_TIME_BUSY;
1446         survey->noise = pchan_stats[idx].noise;
1447         survey->time = pchan_stats[idx].cca_scan_dur;
1448         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1449
1450         return 0;
1451 }
1452
1453 /* Supported rates to be advertised to the cfg80211 */
1454 static struct ieee80211_rate mwifiex_rates[] = {
1455         {.bitrate = 10, .hw_value = 2, },
1456         {.bitrate = 20, .hw_value = 4, },
1457         {.bitrate = 55, .hw_value = 11, },
1458         {.bitrate = 110, .hw_value = 22, },
1459         {.bitrate = 60, .hw_value = 12, },
1460         {.bitrate = 90, .hw_value = 18, },
1461         {.bitrate = 120, .hw_value = 24, },
1462         {.bitrate = 180, .hw_value = 36, },
1463         {.bitrate = 240, .hw_value = 48, },
1464         {.bitrate = 360, .hw_value = 72, },
1465         {.bitrate = 480, .hw_value = 96, },
1466         {.bitrate = 540, .hw_value = 108, },
1467 };
1468
1469 /* Channel definitions to be advertised to cfg80211 */
1470 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1471         {.center_freq = 2412, .hw_value = 1, },
1472         {.center_freq = 2417, .hw_value = 2, },
1473         {.center_freq = 2422, .hw_value = 3, },
1474         {.center_freq = 2427, .hw_value = 4, },
1475         {.center_freq = 2432, .hw_value = 5, },
1476         {.center_freq = 2437, .hw_value = 6, },
1477         {.center_freq = 2442, .hw_value = 7, },
1478         {.center_freq = 2447, .hw_value = 8, },
1479         {.center_freq = 2452, .hw_value = 9, },
1480         {.center_freq = 2457, .hw_value = 10, },
1481         {.center_freq = 2462, .hw_value = 11, },
1482         {.center_freq = 2467, .hw_value = 12, },
1483         {.center_freq = 2472, .hw_value = 13, },
1484         {.center_freq = 2484, .hw_value = 14, },
1485 };
1486
1487 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1488         .channels = mwifiex_channels_2ghz,
1489         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1490         .bitrates = mwifiex_rates,
1491         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1492 };
1493
1494 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1495         {.center_freq = 5040, .hw_value = 8, },
1496         {.center_freq = 5060, .hw_value = 12, },
1497         {.center_freq = 5080, .hw_value = 16, },
1498         {.center_freq = 5170, .hw_value = 34, },
1499         {.center_freq = 5190, .hw_value = 38, },
1500         {.center_freq = 5210, .hw_value = 42, },
1501         {.center_freq = 5230, .hw_value = 46, },
1502         {.center_freq = 5180, .hw_value = 36, },
1503         {.center_freq = 5200, .hw_value = 40, },
1504         {.center_freq = 5220, .hw_value = 44, },
1505         {.center_freq = 5240, .hw_value = 48, },
1506         {.center_freq = 5260, .hw_value = 52, },
1507         {.center_freq = 5280, .hw_value = 56, },
1508         {.center_freq = 5300, .hw_value = 60, },
1509         {.center_freq = 5320, .hw_value = 64, },
1510         {.center_freq = 5500, .hw_value = 100, },
1511         {.center_freq = 5520, .hw_value = 104, },
1512         {.center_freq = 5540, .hw_value = 108, },
1513         {.center_freq = 5560, .hw_value = 112, },
1514         {.center_freq = 5580, .hw_value = 116, },
1515         {.center_freq = 5600, .hw_value = 120, },
1516         {.center_freq = 5620, .hw_value = 124, },
1517         {.center_freq = 5640, .hw_value = 128, },
1518         {.center_freq = 5660, .hw_value = 132, },
1519         {.center_freq = 5680, .hw_value = 136, },
1520         {.center_freq = 5700, .hw_value = 140, },
1521         {.center_freq = 5745, .hw_value = 149, },
1522         {.center_freq = 5765, .hw_value = 153, },
1523         {.center_freq = 5785, .hw_value = 157, },
1524         {.center_freq = 5805, .hw_value = 161, },
1525         {.center_freq = 5825, .hw_value = 165, },
1526 };
1527
1528 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1529         .channels = mwifiex_channels_5ghz,
1530         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1531         .bitrates = mwifiex_rates + 4,
1532         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1533 };
1534
1535
1536 /* Supported crypto cipher suits to be advertised to cfg80211 */
1537 static const u32 mwifiex_cipher_suites[] = {
1538         WLAN_CIPHER_SUITE_WEP40,
1539         WLAN_CIPHER_SUITE_WEP104,
1540         WLAN_CIPHER_SUITE_TKIP,
1541         WLAN_CIPHER_SUITE_CCMP,
1542         WLAN_CIPHER_SUITE_SMS4,
1543         WLAN_CIPHER_SUITE_AES_CMAC,
1544 };
1545
1546 /* Supported mgmt frame types to be advertised to cfg80211 */
1547 static const struct ieee80211_txrx_stypes
1548 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1549         [NL80211_IFTYPE_STATION] = {
1550                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1551                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1552                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1553                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1554         },
1555         [NL80211_IFTYPE_AP] = {
1556                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1557                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1558                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1559                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1560         },
1561         [NL80211_IFTYPE_P2P_CLIENT] = {
1562                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1563                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1564                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1565                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1566         },
1567         [NL80211_IFTYPE_P2P_GO] = {
1568                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1569                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1570                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1571                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1572         },
1573 };
1574
1575 /*
1576  * CFG802.11 operation handler for setting bit rates.
1577  *
1578  * Function configures data rates to firmware using bitrate mask
1579  * provided by cfg80211.
1580  */
1581 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1582                                 struct net_device *dev,
1583                                 const u8 *peer,
1584                                 const struct cfg80211_bitrate_mask *mask)
1585 {
1586         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1587         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1588         enum ieee80211_band band;
1589         struct mwifiex_adapter *adapter = priv->adapter;
1590
1591         if (!priv->media_connected) {
1592                 mwifiex_dbg(adapter, ERROR,
1593                             "Can not set Tx data rate in disconnected state\n");
1594                 return -EINVAL;
1595         }
1596
1597         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1598
1599         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1600
1601         /* Fill HR/DSSS rates. */
1602         if (band == IEEE80211_BAND_2GHZ)
1603                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1604
1605         /* Fill OFDM rates */
1606         if (band == IEEE80211_BAND_2GHZ)
1607                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1608         else
1609                 bitmap_rates[1] = mask->control[band].legacy;
1610
1611         /* Fill HT MCS rates */
1612         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1613         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1614                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1615
1616        /* Fill VHT MCS rates */
1617         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1618                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1619                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1620                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1621         }
1622
1623         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1624                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1625 }
1626
1627 /*
1628  * CFG802.11 operation handler for connection quality monitoring.
1629  *
1630  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1631  * events to FW.
1632  */
1633 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1634                                                 struct net_device *dev,
1635                                                 s32 rssi_thold, u32 rssi_hyst)
1636 {
1637         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1638         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1639
1640         priv->cqm_rssi_thold = rssi_thold;
1641         priv->cqm_rssi_hyst = rssi_hyst;
1642
1643         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1644         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1645
1646         /* Subscribe/unsubscribe low and high rssi events */
1647         if (rssi_thold && rssi_hyst) {
1648                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1649                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1650                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1651                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1652                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1653                 return mwifiex_send_cmd(priv,
1654                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1655                                         0, 0, &subsc_evt, true);
1656         } else {
1657                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1658                 return mwifiex_send_cmd(priv,
1659                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1660                                         0, 0, &subsc_evt, true);
1661         }
1662
1663         return 0;
1664 }
1665
1666 /* cfg80211 operation handler for change_beacon.
1667  * Function retrieves and sets modified management IEs to FW.
1668  */
1669 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1670                                           struct net_device *dev,
1671                                           struct cfg80211_beacon_data *data)
1672 {
1673         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1674
1675         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1676                 mwifiex_dbg(priv->adapter, ERROR,
1677                             "%s: bss_type mismatched\n", __func__);
1678                 return -EINVAL;
1679         }
1680
1681         if (!priv->bss_started) {
1682                 mwifiex_dbg(priv->adapter, ERROR,
1683                             "%s: bss not started\n", __func__);
1684                 return -EINVAL;
1685         }
1686
1687         if (mwifiex_set_mgmt_ies(priv, data)) {
1688                 mwifiex_dbg(priv->adapter, ERROR,
1689                             "%s: setting mgmt ies failed\n", __func__);
1690                 return -EFAULT;
1691         }
1692
1693         return 0;
1694 }
1695
1696 /* cfg80211 operation handler for del_station.
1697  * Function deauthenticates station which value is provided in mac parameter.
1698  * If mac is NULL/broadcast, all stations in associated station list are
1699  * deauthenticated. If bss is not started or there are no stations in
1700  * associated stations list, no action is taken.
1701  */
1702 static int
1703 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1704                              struct station_del_parameters *params)
1705 {
1706         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1707         struct mwifiex_sta_node *sta_node;
1708         u8 deauth_mac[ETH_ALEN];
1709         unsigned long flags;
1710
1711         if (!priv->bss_started && priv->wdev.cac_started) {
1712                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1713                 mwifiex_abort_cac(priv);
1714         }
1715
1716         if (list_empty(&priv->sta_list) || !priv->bss_started)
1717                 return 0;
1718
1719         if (!params->mac || is_broadcast_ether_addr(params->mac))
1720                 return 0;
1721
1722         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1723                     __func__, params->mac);
1724
1725         eth_zero_addr(deauth_mac);
1726
1727         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1728         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1729         if (sta_node)
1730                 ether_addr_copy(deauth_mac, params->mac);
1731         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1732
1733         if (is_valid_ether_addr(deauth_mac)) {
1734                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1735                                      HostCmd_ACT_GEN_SET, 0,
1736                                      deauth_mac, true))
1737                         return -1;
1738         }
1739
1740         return 0;
1741 }
1742
1743 static int
1744 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1745 {
1746         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1747         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1748                                                         MWIFIEX_BSS_ROLE_ANY);
1749         struct mwifiex_ds_ant_cfg ant_cfg;
1750
1751         if (!tx_ant || !rx_ant)
1752                 return -EOPNOTSUPP;
1753
1754         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1755                 /* Not a MIMO chip. User should provide specific antenna number
1756                  * for Tx/Rx path or enable all antennas for diversity
1757                  */
1758                 if (tx_ant != rx_ant)
1759                         return -EOPNOTSUPP;
1760
1761                 if ((tx_ant & (tx_ant - 1)) &&
1762                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1763                         return -EOPNOTSUPP;
1764
1765                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1766                     (priv->adapter->number_of_antenna > 1)) {
1767                         tx_ant = RF_ANTENNA_AUTO;
1768                         rx_ant = RF_ANTENNA_AUTO;
1769                 }
1770         } else {
1771                 struct ieee80211_sta_ht_cap *ht_info;
1772                 int rx_mcs_supp;
1773                 enum ieee80211_band band;
1774
1775                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1776                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1777                         if (adapter->is_hw_11ac_capable)
1778                                 adapter->usr_dot_11ac_mcs_support =
1779                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1780                 } else {
1781                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1782                         if (adapter->is_hw_11ac_capable)
1783                                 adapter->usr_dot_11ac_mcs_support =
1784                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1785                 }
1786
1787                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1788                         if (!adapter->wiphy->bands[band])
1789                                 continue;
1790
1791                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1792                         rx_mcs_supp =
1793                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1794                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1795                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1796                 }
1797         }
1798
1799         ant_cfg.tx_ant = tx_ant;
1800         ant_cfg.rx_ant = rx_ant;
1801
1802         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1803                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1804 }
1805
1806 /* cfg80211 operation handler for stop ap.
1807  * Function stops BSS running at uAP interface.
1808  */
1809 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1810 {
1811         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1812
1813         mwifiex_abort_cac(priv);
1814
1815         if (mwifiex_del_mgmt_ies(priv))
1816                 mwifiex_dbg(priv->adapter, ERROR,
1817                             "Failed to delete mgmt IEs!\n");
1818
1819         priv->ap_11n_enabled = 0;
1820         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1821
1822         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1823                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1824                 mwifiex_dbg(priv->adapter, ERROR,
1825                             "Failed to stop the BSS\n");
1826                 return -1;
1827         }
1828
1829         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1830                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1831                 mwifiex_dbg(priv->adapter, ERROR,
1832                             "Failed to reset BSS\n");
1833                 return -1;
1834         }
1835
1836         if (netif_carrier_ok(priv->netdev))
1837                 netif_carrier_off(priv->netdev);
1838         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1839
1840         return 0;
1841 }
1842
1843 /* cfg80211 operation handler for start_ap.
1844  * Function sets beacon period, DTIM period, SSID and security into
1845  * AP config structure.
1846  * AP is configured with these settings and BSS is started.
1847  */
1848 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1849                                      struct net_device *dev,
1850                                      struct cfg80211_ap_settings *params)
1851 {
1852         struct mwifiex_uap_bss_param *bss_cfg;
1853         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1854
1855         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1856                 return -1;
1857
1858         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1859         if (!bss_cfg)
1860                 return -ENOMEM;
1861
1862         mwifiex_set_sys_config_invalid_data(bss_cfg);
1863
1864         if (params->beacon_interval)
1865                 bss_cfg->beacon_period = params->beacon_interval;
1866         if (params->dtim_period)
1867                 bss_cfg->dtim_period = params->dtim_period;
1868
1869         if (params->ssid && params->ssid_len) {
1870                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1871                 bss_cfg->ssid.ssid_len = params->ssid_len;
1872         }
1873         if (params->inactivity_timeout > 0) {
1874                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1875                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1876                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1877         }
1878
1879         switch (params->hidden_ssid) {
1880         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1881                 bss_cfg->bcast_ssid_ctl = 1;
1882                 break;
1883         case NL80211_HIDDEN_SSID_ZERO_LEN:
1884                 bss_cfg->bcast_ssid_ctl = 0;
1885                 break;
1886         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1887                 /* firmware doesn't support this type of hidden SSID */
1888         default:
1889                 kfree(bss_cfg);
1890                 return -EINVAL;
1891         }
1892
1893         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1894         mwifiex_set_uap_rates(bss_cfg, params);
1895
1896         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1897                 kfree(bss_cfg);
1898                 mwifiex_dbg(priv->adapter, ERROR,
1899                             "Failed to parse secuirty parameters!\n");
1900                 return -1;
1901         }
1902
1903         mwifiex_set_ht_params(priv, bss_cfg, params);
1904
1905         if (priv->adapter->is_hw_11ac_capable) {
1906                 mwifiex_set_vht_params(priv, bss_cfg, params);
1907                 mwifiex_set_vht_width(priv, params->chandef.width,
1908                                       priv->ap_11ac_enabled);
1909         }
1910
1911         if (priv->ap_11ac_enabled)
1912                 mwifiex_set_11ac_ba_params(priv);
1913         else
1914                 mwifiex_set_ba_params(priv);
1915
1916         mwifiex_set_wmm_params(priv, bss_cfg, params);
1917
1918         if (mwifiex_is_11h_active(priv))
1919                 mwifiex_set_tpc_params(priv, bss_cfg, params);
1920
1921         if (mwifiex_is_11h_active(priv) &&
1922             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
1923                                            priv->bss_mode)) {
1924                 mwifiex_dbg(priv->adapter, INFO,
1925                             "Disable 11h extensions in FW\n");
1926                 if (mwifiex_11h_activate(priv, false)) {
1927                         mwifiex_dbg(priv->adapter, ERROR,
1928                                     "Failed to disable 11h extensions!!");
1929                         return -1;
1930                 }
1931                 priv->state_11h.is_11h_active = false;
1932         }
1933
1934         if (mwifiex_config_start_uap(priv, bss_cfg)) {
1935                 mwifiex_dbg(priv->adapter, ERROR,
1936                             "Failed to start AP\n");
1937                 kfree(bss_cfg);
1938                 return -1;
1939         }
1940
1941         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1942                 return -1;
1943
1944         if (!netif_carrier_ok(priv->netdev))
1945                 netif_carrier_on(priv->netdev);
1946         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
1947
1948         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1949         kfree(bss_cfg);
1950         return 0;
1951 }
1952
1953 /*
1954  * CFG802.11 operation handler for disconnection request.
1955  *
1956  * This function does not work when there is already a disconnection
1957  * procedure going on.
1958  */
1959 static int
1960 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1961                             u16 reason_code)
1962 {
1963         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1964
1965         if (!mwifiex_stop_bg_scan(priv))
1966                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
1967
1968         if (mwifiex_deauthenticate(priv, NULL))
1969                 return -EFAULT;
1970
1971         mwifiex_dbg(priv->adapter, MSG,
1972                     "info: successfully disconnected from %pM:\t"
1973                     "reason code %d\n", priv->cfg_bssid, reason_code);
1974
1975         eth_zero_addr(priv->cfg_bssid);
1976         priv->hs2_enabled = false;
1977
1978         return 0;
1979 }
1980
1981 /*
1982  * This function informs the CFG802.11 subsystem of a new IBSS.
1983  *
1984  * The following information are sent to the CFG802.11 subsystem
1985  * to register the new IBSS. If we do not register the new IBSS,
1986  * a kernel panic will result.
1987  *      - SSID
1988  *      - SSID length
1989  *      - BSSID
1990  *      - Channel
1991  */
1992 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1993 {
1994         struct ieee80211_channel *chan;
1995         struct mwifiex_bss_info bss_info;
1996         struct cfg80211_bss *bss;
1997         int ie_len;
1998         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1999         enum ieee80211_band band;
2000
2001         if (mwifiex_get_bss_info(priv, &bss_info))
2002                 return -1;
2003
2004         ie_buf[0] = WLAN_EID_SSID;
2005         ie_buf[1] = bss_info.ssid.ssid_len;
2006
2007         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2008                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2009         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2010
2011         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2012         chan = __ieee80211_get_channel(priv->wdev.wiphy,
2013                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2014                                                        band));
2015
2016         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2017                                   CFG80211_BSS_FTYPE_UNKNOWN,
2018                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2019                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2020         if (bss) {
2021                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2022                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2023         }
2024
2025         return 0;
2026 }
2027
2028 /*
2029  * This function connects with a BSS.
2030  *
2031  * This function handles both Infra and Ad-Hoc modes. It also performs
2032  * validity checking on the provided parameters, disconnects from the
2033  * current BSS (if any), sets up the association/scan parameters,
2034  * including security settings, and performs specific SSID scan before
2035  * trying to connect.
2036  *
2037  * For Infra mode, the function returns failure if the specified SSID
2038  * is not found in scan table. However, for Ad-Hoc mode, it can create
2039  * the IBSS if it does not exist. On successful completion in either case,
2040  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2041  */
2042 static int
2043 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2044                        const u8 *ssid, const u8 *bssid, int mode,
2045                        struct ieee80211_channel *channel,
2046                        struct cfg80211_connect_params *sme, bool privacy)
2047 {
2048         struct cfg80211_ssid req_ssid;
2049         int ret, auth_type = 0;
2050         struct cfg80211_bss *bss = NULL;
2051         u8 is_scanning_required = 0;
2052
2053         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2054
2055         req_ssid.ssid_len = ssid_len;
2056         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2057                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2058                 return -EINVAL;
2059         }
2060
2061         memcpy(req_ssid.ssid, ssid, ssid_len);
2062         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2063                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2064                 return -EINVAL;
2065         }
2066
2067         /* As this is new association, clear locally stored
2068          * keys and security related flags */
2069         priv->sec_info.wpa_enabled = false;
2070         priv->sec_info.wpa2_enabled = false;
2071         priv->wep_key_curr_index = 0;
2072         priv->sec_info.encryption_mode = 0;
2073         priv->sec_info.is_authtype_auto = 0;
2074         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2075
2076         if (mode == NL80211_IFTYPE_ADHOC) {
2077                 /* "privacy" is set only for ad-hoc mode */
2078                 if (privacy) {
2079                         /*
2080                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2081                          * the firmware can find a matching network from the
2082                          * scan. The cfg80211 does not give us the encryption
2083                          * mode at this stage so just setting it to WEP here.
2084                          */
2085                         priv->sec_info.encryption_mode =
2086                                         WLAN_CIPHER_SUITE_WEP104;
2087                         priv->sec_info.authentication_mode =
2088                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2089                 }
2090
2091                 goto done;
2092         }
2093
2094         /* Now handle infra mode. "sme" is valid for infra mode only */
2095         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2096                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2097                 priv->sec_info.is_authtype_auto = 1;
2098         } else {
2099                 auth_type = sme->auth_type;
2100         }
2101
2102         if (sme->crypto.n_ciphers_pairwise) {
2103                 priv->sec_info.encryption_mode =
2104                                                 sme->crypto.ciphers_pairwise[0];
2105                 priv->sec_info.authentication_mode = auth_type;
2106         }
2107
2108         if (sme->crypto.cipher_group) {
2109                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2110                 priv->sec_info.authentication_mode = auth_type;
2111         }
2112         if (sme->ie)
2113                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2114
2115         if (sme->key) {
2116                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2117                         mwifiex_dbg(priv->adapter, INFO,
2118                                     "info: setting wep encryption\t"
2119                                     "with key len %d\n", sme->key_len);
2120                         priv->wep_key_curr_index = sme->key_idx;
2121                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2122                                                  sme->key_len, sme->key_idx,
2123                                                  NULL, 0);
2124                 }
2125         }
2126 done:
2127         /*
2128          * Scan entries are valid for some time (15 sec). So we can save one
2129          * active scan time if we just try cfg80211_get_bss first. If it fails
2130          * then request scan and cfg80211_get_bss() again for final output.
2131          */
2132         while (1) {
2133                 if (is_scanning_required) {
2134                         /* Do specific SSID scanning */
2135                         if (mwifiex_request_scan(priv, &req_ssid)) {
2136                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2137                                 return -EFAULT;
2138                         }
2139                 }
2140
2141                 /* Find the BSS we want using available scan results */
2142                 if (mode == NL80211_IFTYPE_ADHOC)
2143                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2144                                                bssid, ssid, ssid_len,
2145                                                IEEE80211_BSS_TYPE_IBSS,
2146                                                IEEE80211_PRIVACY_ANY);
2147                 else
2148                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2149                                                bssid, ssid, ssid_len,
2150                                                IEEE80211_BSS_TYPE_ESS,
2151                                                IEEE80211_PRIVACY_ANY);
2152
2153                 if (!bss) {
2154                         if (is_scanning_required) {
2155                                 mwifiex_dbg(priv->adapter, WARN,
2156                                             "assoc: requested bss not found in scan results\n");
2157                                 break;
2158                         }
2159                         is_scanning_required = 1;
2160                 } else {
2161                         mwifiex_dbg(priv->adapter, MSG,
2162                                     "info: trying to associate to '%s' bssid %pM\n",
2163                                     (char *)req_ssid.ssid, bss->bssid);
2164                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2165                         break;
2166                 }
2167         }
2168
2169         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2170         if (ret)
2171                 return ret;
2172
2173         if (mode == NL80211_IFTYPE_ADHOC) {
2174                 /* Inform the BSS information to kernel, otherwise
2175                  * kernel will give a panic after successful assoc */
2176                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2177                         return -EFAULT;
2178         }
2179
2180         return ret;
2181 }
2182
2183 /*
2184  * CFG802.11 operation handler for association request.
2185  *
2186  * This function does not work when the current mode is set to Ad-Hoc, or
2187  * when there is already an association procedure going on. The given BSS
2188  * information is used to associate.
2189  */
2190 static int
2191 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2192                          struct cfg80211_connect_params *sme)
2193 {
2194         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2195         struct mwifiex_adapter *adapter = priv->adapter;
2196         int ret;
2197
2198         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2199                 mwifiex_dbg(adapter, ERROR,
2200                             "%s: reject infra assoc request in non-STA role\n",
2201                             dev->name);
2202                 return -EINVAL;
2203         }
2204
2205         if (priv->wdev.current_bss) {
2206                 mwifiex_dbg(adapter, ERROR,
2207                             "%s: already connected\n", dev->name);
2208                 return -EALREADY;
2209         }
2210
2211         if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2212                 mwifiex_dbg(adapter, ERROR,
2213                             "%s: Ignore connection.\t"
2214                             "Card removed or FW in bad state\n",
2215                             dev->name);
2216                 return -EFAULT;
2217         }
2218
2219         mwifiex_dbg(adapter, INFO,
2220                     "info: Trying to associate to %s and bssid %pM\n",
2221                     (char *)sme->ssid, sme->bssid);
2222
2223         if (!mwifiex_stop_bg_scan(priv))
2224                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2225
2226         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2227                                      priv->bss_mode, sme->channel, sme, 0);
2228         if (!ret) {
2229                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2230                                         NULL, 0, WLAN_STATUS_SUCCESS,
2231                                         GFP_KERNEL);
2232                 mwifiex_dbg(priv->adapter, MSG,
2233                             "info: associated to bssid %pM successfully\n",
2234                             priv->cfg_bssid);
2235                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2236                     priv->adapter->auto_tdls &&
2237                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2238                         mwifiex_setup_auto_tdls_timer(priv);
2239         } else {
2240                 mwifiex_dbg(priv->adapter, ERROR,
2241                             "info: association to bssid %pM failed\n",
2242                             priv->cfg_bssid);
2243                 eth_zero_addr(priv->cfg_bssid);
2244
2245                 if (ret > 0)
2246                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2247                                                 NULL, 0, NULL, 0, ret,
2248                                                 GFP_KERNEL);
2249                 else
2250                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2251                                                 NULL, 0, NULL, 0,
2252                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2253                                                 GFP_KERNEL);
2254         }
2255
2256         return 0;
2257 }
2258
2259 /*
2260  * This function sets following parameters for ibss network.
2261  *  -  channel
2262  *  -  start band
2263  *  -  11n flag
2264  *  -  secondary channel offset
2265  */
2266 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2267                                    struct cfg80211_ibss_params *params)
2268 {
2269         struct mwifiex_adapter *adapter = priv->adapter;
2270         int index = 0, i;
2271         u8 config_bands = 0;
2272
2273         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2274                 if (!params->basic_rates) {
2275                         config_bands = BAND_B | BAND_G;
2276                 } else {
2277                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2278                                 /*
2279                                  * Rates below 6 Mbps in the table are CCK
2280                                  * rates; 802.11b and from 6 they are OFDM;
2281                                  * 802.11G
2282                                  */
2283                                 if (mwifiex_rates[i].bitrate == 60) {
2284                                         index = 1 << i;
2285                                         break;
2286                                 }
2287                         }
2288
2289                         if (params->basic_rates < index) {
2290                                 config_bands = BAND_B;
2291                         } else {
2292                                 config_bands = BAND_G;
2293                                 if (params->basic_rates % index)
2294                                         config_bands |= BAND_B;
2295                         }
2296                 }
2297
2298                 if (cfg80211_get_chandef_type(&params->chandef) !=
2299                                                 NL80211_CHAN_NO_HT)
2300                         config_bands |= BAND_G | BAND_GN;
2301         } else {
2302                 if (cfg80211_get_chandef_type(&params->chandef) ==
2303                                                 NL80211_CHAN_NO_HT)
2304                         config_bands = BAND_A;
2305                 else
2306                         config_bands = BAND_AN | BAND_A;
2307         }
2308
2309         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2310                 adapter->config_bands = config_bands;
2311                 adapter->adhoc_start_band = config_bands;
2312
2313                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2314                         adapter->adhoc_11n_enabled = true;
2315                 else
2316                         adapter->adhoc_11n_enabled = false;
2317         }
2318
2319         adapter->sec_chan_offset =
2320                 mwifiex_chan_type_to_sec_chan_offset(
2321                         cfg80211_get_chandef_type(&params->chandef));
2322         priv->adhoc_channel = ieee80211_frequency_to_channel(
2323                                 params->chandef.chan->center_freq);
2324
2325         mwifiex_dbg(adapter, INFO,
2326                     "info: set ibss band %d, chan %d, chan offset %d\n",
2327                     config_bands, priv->adhoc_channel,
2328                     adapter->sec_chan_offset);
2329
2330         return 0;
2331 }
2332
2333 /*
2334  * CFG802.11 operation handler to join an IBSS.
2335  *
2336  * This function does not work in any mode other than Ad-Hoc, or if
2337  * a join operation is already in progress.
2338  */
2339 static int
2340 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2341                            struct cfg80211_ibss_params *params)
2342 {
2343         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2344         int ret = 0;
2345
2346         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2347                 mwifiex_dbg(priv->adapter, ERROR,
2348                             "request to join ibss received\t"
2349                             "when station is not in ibss mode\n");
2350                 goto done;
2351         }
2352
2353         mwifiex_dbg(priv->adapter, MSG,
2354                     "info: trying to join to %s and bssid %pM\n",
2355                     (char *)params->ssid, params->bssid);
2356
2357         mwifiex_set_ibss_params(priv, params);
2358
2359         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2360                                      params->bssid, priv->bss_mode,
2361                                      params->chandef.chan, NULL,
2362                                      params->privacy);
2363 done:
2364         if (!ret) {
2365                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2366                                      params->chandef.chan, GFP_KERNEL);
2367                 mwifiex_dbg(priv->adapter, MSG,
2368                             "info: joined/created adhoc network with bssid\t"
2369                             "%pM successfully\n", priv->cfg_bssid);
2370         } else {
2371                 mwifiex_dbg(priv->adapter, ERROR,
2372                             "info: failed creating/joining adhoc network\n");
2373         }
2374
2375         return ret;
2376 }
2377
2378 /*
2379  * CFG802.11 operation handler to leave an IBSS.
2380  *
2381  * This function does not work if a leave operation is
2382  * already in progress.
2383  */
2384 static int
2385 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2386 {
2387         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2388
2389         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2390                     priv->cfg_bssid);
2391         if (mwifiex_deauthenticate(priv, NULL))
2392                 return -EFAULT;
2393
2394         eth_zero_addr(priv->cfg_bssid);
2395
2396         return 0;
2397 }
2398
2399 /*
2400  * CFG802.11 operation handler for scan request.
2401  *
2402  * This function issues a scan request to the firmware based upon
2403  * the user specified scan configuration. On successful completion,
2404  * it also informs the results.
2405  */
2406 static int
2407 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2408                       struct cfg80211_scan_request *request)
2409 {
2410         struct net_device *dev = request->wdev->netdev;
2411         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2412         int i, offset, ret;
2413         struct ieee80211_channel *chan;
2414         struct ieee_types_header *ie;
2415         struct mwifiex_user_scan_cfg *user_scan_cfg;
2416
2417         mwifiex_dbg(priv->adapter, CMD,
2418                     "info: received scan request on %s\n", dev->name);
2419
2420         /* Block scan request if scan operation or scan cleanup when interface
2421          * is disabled is in process
2422          */
2423         if (priv->scan_request || priv->scan_aborting) {
2424                 mwifiex_dbg(priv->adapter, WARN,
2425                             "cmd: Scan already in process..\n");
2426                 return -EBUSY;
2427         }
2428
2429         if (!mwifiex_stop_bg_scan(priv))
2430                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2431
2432         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2433         if (!user_scan_cfg)
2434                 return -ENOMEM;
2435
2436         priv->scan_request = request;
2437
2438         user_scan_cfg->num_ssids = request->n_ssids;
2439         user_scan_cfg->ssid_list = request->ssids;
2440
2441         if (request->ie && request->ie_len) {
2442                 offset = 0;
2443                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2444                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2445                                 continue;
2446                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2447                         ie = (struct ieee_types_header *)(request->ie + offset);
2448                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2449                         offset += sizeof(*ie) + ie->len;
2450
2451                         if (offset >= request->ie_len)
2452                                 break;
2453                 }
2454         }
2455
2456         for (i = 0; i < min_t(u32, request->n_channels,
2457                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2458                 chan = request->channels[i];
2459                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2460                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2461
2462                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2463                         user_scan_cfg->chan_list[i].scan_type =
2464                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2465                 else
2466                         user_scan_cfg->chan_list[i].scan_type =
2467                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2468
2469                 user_scan_cfg->chan_list[i].scan_time = 0;
2470         }
2471
2472         if (priv->adapter->scan_chan_gap_enabled &&
2473             mwifiex_is_any_intf_active(priv))
2474                 user_scan_cfg->scan_chan_gap =
2475                                               priv->adapter->scan_chan_gap_time;
2476
2477         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2478         kfree(user_scan_cfg);
2479         if (ret) {
2480                 mwifiex_dbg(priv->adapter, ERROR,
2481                             "scan failed: %d\n", ret);
2482                 priv->scan_aborting = false;
2483                 priv->scan_request = NULL;
2484                 return ret;
2485         }
2486
2487         if (request->ie && request->ie_len) {
2488                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2489                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2490                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2491                                 memset(&priv->vs_ie[i].ie, 0,
2492                                        MWIFIEX_MAX_VSIE_LEN);
2493                         }
2494                 }
2495         }
2496         return 0;
2497 }
2498
2499 /* CFG802.11 operation handler for sched_scan_start.
2500  *
2501  * This function issues a bgscan config request to the firmware based upon
2502  * the user specified sched_scan configuration. On successful completion,
2503  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2504  * query command to get sched_scan results from firmware.
2505  */
2506 static int
2507 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2508                                   struct net_device *dev,
2509                                   struct cfg80211_sched_scan_request *request)
2510 {
2511         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2512         int i, offset;
2513         struct ieee80211_channel *chan;
2514         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2515         struct ieee_types_header *ie;
2516
2517         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2518                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2519                           __func__);
2520                 return -EINVAL;
2521         }
2522
2523         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2524                    request->n_ssids, request->n_match_sets);
2525         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2526                    request->n_channels, request->scan_plans->interval,
2527                    (int)request->ie_len);
2528
2529         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2530         if (!bgscan_cfg)
2531                 return -ENOMEM;
2532
2533         if (priv->scan_request || priv->scan_aborting)
2534                 bgscan_cfg->start_later = true;
2535
2536         bgscan_cfg->num_ssids = request->n_match_sets;
2537         bgscan_cfg->ssid_list = request->match_sets;
2538
2539         if (request->ie && request->ie_len) {
2540                 offset = 0;
2541                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2542                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2543                                 continue;
2544                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2545                         ie = (struct ieee_types_header *)(request->ie + offset);
2546                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2547                         offset += sizeof(*ie) + ie->len;
2548
2549                         if (offset >= request->ie_len)
2550                                 break;
2551                 }
2552         }
2553
2554         for (i = 0; i < min_t(u32, request->n_channels,
2555                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2556                 chan = request->channels[i];
2557                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2558                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2559
2560                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2561                         bgscan_cfg->chan_list[i].scan_type =
2562                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2563                 else
2564                         bgscan_cfg->chan_list[i].scan_type =
2565                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2566
2567                 bgscan_cfg->chan_list[i].scan_time = 0;
2568         }
2569
2570         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2571                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2572
2573         /* Use at least 15 second for per scan cycle */
2574         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2575                                      MWIFIEX_BGSCAN_INTERVAL) ?
2576                                 request->scan_plans->interval :
2577                                 MWIFIEX_BGSCAN_INTERVAL;
2578
2579         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2580         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2581                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2582         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2583         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2584         bgscan_cfg->enable = true;
2585         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2586                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2587                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2588         }
2589
2590         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2591                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2592                 kfree(bgscan_cfg);
2593                 return -EFAULT;
2594         }
2595
2596         priv->sched_scanning = true;
2597
2598         kfree(bgscan_cfg);
2599         return 0;
2600 }
2601
2602 /* CFG802.11 operation handler for sched_scan_stop.
2603  *
2604  * This function issues a bgscan config command to disable
2605  * previous bgscan configuration in the firmware
2606  */
2607 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2608                                             struct net_device *dev)
2609 {
2610         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2611
2612         wiphy_info(wiphy, "sched scan stop!");
2613         mwifiex_stop_bg_scan(priv);
2614
2615         return 0;
2616 }
2617
2618 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2619                                    struct mwifiex_private *priv)
2620 {
2621         struct mwifiex_adapter *adapter = priv->adapter;
2622
2623         vht_info->vht_supported = true;
2624
2625         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2626         /* Update MCS support for VHT */
2627         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2628                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2629         vht_info->vht_mcs.rx_highest = 0;
2630         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2631                                 adapter->hw_dot_11ac_mcs_support >> 16);
2632         vht_info->vht_mcs.tx_highest = 0;
2633 }
2634
2635 /*
2636  * This function sets up the CFG802.11 specific HT capability fields
2637  * with default values.
2638  *
2639  * The following default values are set -
2640  *      - HT Supported = True
2641  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2642  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2643  *      - HT Capabilities supported by firmware
2644  *      - MCS information, Rx mask = 0xff
2645  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2646  */
2647 static void
2648 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2649                       struct mwifiex_private *priv)
2650 {
2651         int rx_mcs_supp;
2652         struct ieee80211_mcs_info mcs_set;
2653         u8 *mcs = (u8 *)&mcs_set;
2654         struct mwifiex_adapter *adapter = priv->adapter;
2655
2656         ht_info->ht_supported = true;
2657         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2658         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2659
2660         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2661
2662         /* Fill HT capability information */
2663         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2664                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2665         else
2666                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2667
2668         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2669                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2670         else
2671                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2672
2673         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2674                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2675         else
2676                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2677
2678         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2679                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2680         else
2681                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2682
2683         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2684                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2685         else
2686                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2687
2688         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2689                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2690         else
2691                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2692
2693         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2694                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2695         else
2696                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2697
2698         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2699                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2700         else
2701                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2702
2703         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2704         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2705
2706         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2707         /* Set MCS for 1x1/2x2 */
2708         memset(mcs, 0xff, rx_mcs_supp);
2709         /* Clear all the other values */
2710         memset(&mcs[rx_mcs_supp], 0,
2711                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2712         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2713             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2714                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2715                 SETHT_MCS32(mcs_set.rx_mask);
2716
2717         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2718
2719         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2720 }
2721
2722 /*
2723  *  create a new virtual interface with the given name and name assign type
2724  */
2725 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2726                                               const char *name,
2727                                               unsigned char name_assign_type,
2728                                               enum nl80211_iftype type,
2729                                               u32 *flags,
2730                                               struct vif_params *params)
2731 {
2732         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2733         struct mwifiex_private *priv;
2734         struct net_device *dev;
2735         void *mdev_priv;
2736
2737         if (!adapter)
2738                 return ERR_PTR(-EFAULT);
2739
2740         switch (type) {
2741         case NL80211_IFTYPE_UNSPECIFIED:
2742         case NL80211_IFTYPE_STATION:
2743         case NL80211_IFTYPE_ADHOC:
2744                 if (adapter->curr_iface_comb.sta_intf ==
2745                     adapter->iface_limit.sta_intf) {
2746                         mwifiex_dbg(adapter, ERROR,
2747                                     "cannot create multiple sta/adhoc ifaces\n");
2748                         return ERR_PTR(-EINVAL);
2749                 }
2750
2751                 priv = mwifiex_get_unused_priv_by_bss_type(
2752                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2753                 if (!priv) {
2754                         mwifiex_dbg(adapter, ERROR,
2755                                     "could not get free private struct\n");
2756                         return ERR_PTR(-EFAULT);
2757                 }
2758
2759                 priv->wdev.wiphy = wiphy;
2760                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2761
2762                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2763                         priv->bss_mode = NL80211_IFTYPE_STATION;
2764                 else
2765                         priv->bss_mode = type;
2766
2767                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2768                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2769                 priv->bss_priority = 0;
2770                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2771
2772                 break;
2773         case NL80211_IFTYPE_AP:
2774                 if (adapter->curr_iface_comb.uap_intf ==
2775                     adapter->iface_limit.uap_intf) {
2776                         mwifiex_dbg(adapter, ERROR,
2777                                     "cannot create multiple AP ifaces\n");
2778                         return ERR_PTR(-EINVAL);
2779                 }
2780
2781                 priv = mwifiex_get_unused_priv_by_bss_type(
2782                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
2783                 if (!priv) {
2784                         mwifiex_dbg(adapter, ERROR,
2785                                     "could not get free private struct\n");
2786                         return ERR_PTR(-EFAULT);
2787                 }
2788
2789                 priv->wdev.wiphy = wiphy;
2790                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2791
2792                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2793                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2794                 priv->bss_priority = 0;
2795                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2796                 priv->bss_started = 0;
2797                 priv->bss_mode = type;
2798
2799                 break;
2800         case NL80211_IFTYPE_P2P_CLIENT:
2801                 if (adapter->curr_iface_comb.p2p_intf ==
2802                     adapter->iface_limit.p2p_intf) {
2803                         mwifiex_dbg(adapter, ERROR,
2804                                     "cannot create multiple P2P ifaces\n");
2805                         return ERR_PTR(-EINVAL);
2806                 }
2807
2808                 priv = mwifiex_get_unused_priv_by_bss_type(
2809                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
2810                 if (!priv) {
2811                         mwifiex_dbg(adapter, ERROR,
2812                                     "could not get free private struct\n");
2813                         return ERR_PTR(-EFAULT);
2814                 }
2815
2816                 priv->wdev.wiphy = wiphy;
2817                 /* At start-up, wpa_supplicant tries to change the interface
2818                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2819                  */
2820                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2821                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2822
2823                 /* Setting bss_type to P2P tells firmware that this interface
2824                  * is receiving P2P peers found during find phase and doing
2825                  * action frame handshake.
2826                  */
2827                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2828
2829                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2830                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2831                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2832                 priv->bss_started = 0;
2833
2834                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2835                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2836                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2837                         return ERR_PTR(-EFAULT);
2838                 }
2839
2840                 break;
2841         default:
2842                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2843                 return ERR_PTR(-EINVAL);
2844         }
2845
2846         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2847                                name_assign_type, ether_setup,
2848                                IEEE80211_NUM_ACS, 1);
2849         if (!dev) {
2850                 mwifiex_dbg(adapter, ERROR,
2851                             "no memory available for netdevice\n");
2852                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2853                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2854                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2855                 return ERR_PTR(-ENOMEM);
2856         }
2857
2858         mwifiex_init_priv_params(priv, dev);
2859         priv->netdev = dev;
2860
2861         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2862         if (adapter->is_hw_11ac_capable)
2863                 mwifiex_setup_vht_caps(
2864                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2865
2866         if (adapter->config_bands & BAND_A)
2867                 mwifiex_setup_ht_caps(
2868                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2869
2870         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2871                 mwifiex_setup_vht_caps(
2872                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2873
2874         dev_net_set(dev, wiphy_net(wiphy));
2875         dev->ieee80211_ptr = &priv->wdev;
2876         dev->ieee80211_ptr->iftype = priv->bss_mode;
2877         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2878         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2879
2880         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2881         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2882         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2883         dev->ethtool_ops = &mwifiex_ethtool_ops;
2884
2885         mdev_priv = netdev_priv(dev);
2886         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2887
2888         SET_NETDEV_DEV(dev, adapter->dev);
2889
2890         /* Register network device */
2891         if (register_netdevice(dev)) {
2892                 mwifiex_dbg(adapter, ERROR,
2893                             "cannot register virtual network device\n");
2894                 free_netdev(dev);
2895                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2896                 priv->netdev = NULL;
2897                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2898                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2899                 return ERR_PTR(-EFAULT);
2900         }
2901
2902         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2903                                                   WQ_HIGHPRI |
2904                                                   WQ_MEM_RECLAIM |
2905                                                   WQ_UNBOUND, 1, name);
2906         if (!priv->dfs_cac_workqueue) {
2907                 mwifiex_dbg(adapter, ERROR,
2908                             "cannot register virtual network device\n");
2909                 free_netdev(dev);
2910                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2911                 priv->netdev = NULL;
2912                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2913                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2914                 return ERR_PTR(-ENOMEM);
2915         }
2916
2917         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2918
2919         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2920                                                       WQ_HIGHPRI | WQ_UNBOUND |
2921                                                       WQ_MEM_RECLAIM, 1, name);
2922         if (!priv->dfs_chan_sw_workqueue) {
2923                 mwifiex_dbg(adapter, ERROR,
2924                             "cannot register virtual network device\n");
2925                 free_netdev(dev);
2926                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2927                 priv->netdev = NULL;
2928                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2929                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2930                 return ERR_PTR(-ENOMEM);
2931         }
2932
2933         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
2934                           mwifiex_dfs_chan_sw_work_queue);
2935
2936         sema_init(&priv->async_sem, 1);
2937
2938         mwifiex_dbg(adapter, INFO,
2939                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
2940
2941 #ifdef CONFIG_DEBUG_FS
2942         mwifiex_dev_debugfs_init(priv);
2943 #endif
2944
2945         switch (type) {
2946         case NL80211_IFTYPE_UNSPECIFIED:
2947         case NL80211_IFTYPE_STATION:
2948         case NL80211_IFTYPE_ADHOC:
2949                 adapter->curr_iface_comb.sta_intf++;
2950                 break;
2951         case NL80211_IFTYPE_AP:
2952                 adapter->curr_iface_comb.uap_intf++;
2953                 break;
2954         case NL80211_IFTYPE_P2P_CLIENT:
2955                 adapter->curr_iface_comb.p2p_intf++;
2956                 break;
2957         default:
2958                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2959                 return ERR_PTR(-EINVAL);
2960         }
2961
2962         return &priv->wdev;
2963 }
2964 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2965
2966 /*
2967  * del_virtual_intf: remove the virtual interface determined by dev
2968  */
2969 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2970 {
2971         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2972         struct mwifiex_adapter *adapter = priv->adapter;
2973         struct sk_buff *skb, *tmp;
2974
2975 #ifdef CONFIG_DEBUG_FS
2976         mwifiex_dev_debugfs_remove(priv);
2977 #endif
2978
2979         if (priv->sched_scanning)
2980                 priv->sched_scanning = false;
2981
2982         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2983
2984         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp)
2985                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
2986
2987         if (netif_carrier_ok(priv->netdev))
2988                 netif_carrier_off(priv->netdev);
2989
2990         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2991                 unregister_netdevice(wdev->netdev);
2992
2993         if (priv->dfs_cac_workqueue) {
2994                 flush_workqueue(priv->dfs_cac_workqueue);
2995                 destroy_workqueue(priv->dfs_cac_workqueue);
2996                 priv->dfs_cac_workqueue = NULL;
2997         }
2998
2999         if (priv->dfs_chan_sw_workqueue) {
3000                 flush_workqueue(priv->dfs_chan_sw_workqueue);
3001                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3002                 priv->dfs_chan_sw_workqueue = NULL;
3003         }
3004         /* Clear the priv in adapter */
3005         priv->netdev->ieee80211_ptr = NULL;
3006         priv->netdev = NULL;
3007         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3008
3009         priv->media_connected = false;
3010
3011         switch (priv->bss_mode) {
3012         case NL80211_IFTYPE_UNSPECIFIED:
3013         case NL80211_IFTYPE_STATION:
3014         case NL80211_IFTYPE_ADHOC:
3015                 adapter->curr_iface_comb.sta_intf--;
3016                 break;
3017         case NL80211_IFTYPE_AP:
3018                 adapter->curr_iface_comb.uap_intf--;
3019                 break;
3020         case NL80211_IFTYPE_P2P_CLIENT:
3021         case NL80211_IFTYPE_P2P_GO:
3022                 adapter->curr_iface_comb.p2p_intf--;
3023                 break;
3024         default:
3025                 mwifiex_dbg(adapter, ERROR,
3026                             "del_virtual_intf: type not supported\n");
3027                 break;
3028         }
3029
3030         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3031
3032         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3033             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3034                 kfree(priv->hist_data);
3035
3036         return 0;
3037 }
3038 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3039
3040 static bool
3041 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3042                              u8 max_byte_seq)
3043 {
3044         int j, k, valid_byte_cnt = 0;
3045         bool dont_care_byte = false;
3046
3047         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3048                 for (k = 0; k < 8; k++) {
3049                         if (pat->mask[j] & 1 << k) {
3050                                 memcpy(byte_seq + valid_byte_cnt,
3051                                        &pat->pattern[j * 8 + k], 1);
3052                                 valid_byte_cnt++;
3053                                 if (dont_care_byte)
3054                                         return false;
3055                         } else {
3056                                 if (valid_byte_cnt)
3057                                         dont_care_byte = true;
3058                         }
3059
3060                         /* wildcard bytes record as the offset
3061                          * before the valid byte
3062                          */
3063                         if (!valid_byte_cnt && !dont_care_byte)
3064                                 pat->pkt_offset++;
3065
3066                         if (valid_byte_cnt > max_byte_seq)
3067                                 return false;
3068                 }
3069         }
3070
3071         byte_seq[max_byte_seq] = valid_byte_cnt;
3072
3073         return true;
3074 }
3075
3076 #ifdef CONFIG_PM
3077 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3078                                            struct mwifiex_mef_entry *mef_entry)
3079 {
3080         int i, filt_num = 0, num_ipv4 = 0;
3081         struct in_device *in_dev;
3082         struct in_ifaddr *ifa;
3083         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3084         struct mwifiex_adapter *adapter = priv->adapter;
3085
3086         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3087         mef_entry->action = MEF_ACTION_AUTO_ARP;
3088
3089         /* Enable ARP offload feature */
3090         memset(ips, 0, sizeof(ips));
3091         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3092                 if (adapter->priv[i]->netdev) {
3093                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3094                         if (!in_dev)
3095                                 continue;
3096                         ifa = in_dev->ifa_list;
3097                         if (!ifa || !ifa->ifa_local)
3098                                 continue;
3099                         ips[i] = ifa->ifa_local;
3100                         num_ipv4++;
3101                 }
3102         }
3103
3104         for (i = 0; i < num_ipv4; i++) {
3105                 if (!ips[i])
3106                         continue;
3107                 mef_entry->filter[filt_num].repeat = 1;
3108                 memcpy(mef_entry->filter[filt_num].byte_seq,
3109                        (u8 *)&ips[i], sizeof(ips[i]));
3110                 mef_entry->filter[filt_num].
3111                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3112                         sizeof(ips[i]);
3113                 mef_entry->filter[filt_num].offset = 46;
3114                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3115                 if (filt_num) {
3116                         mef_entry->filter[filt_num].filt_action =
3117                                 TYPE_OR;
3118                 }
3119                 filt_num++;
3120         }
3121
3122         mef_entry->filter[filt_num].repeat = 1;
3123         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3124         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3125         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3126         mef_entry->filter[filt_num].offset = 20;
3127         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3128         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3129 }
3130
3131 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3132                                         struct mwifiex_ds_mef_cfg *mef_cfg,
3133                                         struct mwifiex_mef_entry *mef_entry,
3134                                         struct cfg80211_wowlan *wowlan)
3135 {
3136         int i, filt_num = 0, ret = 0;
3137         bool first_pat = true;
3138         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3139         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3140         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3141
3142         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3143         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3144
3145         for (i = 0; i < wowlan->n_patterns; i++) {
3146                 memset(byte_seq, 0, sizeof(byte_seq));
3147                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3148                                         byte_seq,
3149                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3150                         mwifiex_dbg(priv->adapter, ERROR,
3151                                     "Pattern not supported\n");
3152                         return -EOPNOTSUPP;
3153                 }
3154
3155                 if (!wowlan->patterns[i].pkt_offset) {
3156                         if (!(byte_seq[0] & 0x01) &&
3157                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3158                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3159                                 continue;
3160                         } else if (is_broadcast_ether_addr(byte_seq)) {
3161                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3162                                 continue;
3163                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3164                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3165                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3166                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3167                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3168                                 continue;
3169                         }
3170                 }
3171                 mef_entry->filter[filt_num].repeat = 1;
3172                 mef_entry->filter[filt_num].offset =
3173                         wowlan->patterns[i].pkt_offset;
3174                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3175                                 sizeof(byte_seq));
3176                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3177
3178                 if (first_pat) {
3179                         first_pat = false;
3180                         mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3181                 } else {
3182                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3183                 }
3184
3185                 filt_num++;
3186         }
3187
3188         if (wowlan->magic_pkt) {
3189                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3190                 mef_entry->filter[filt_num].repeat = 16;
3191                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3192                                 ETH_ALEN);
3193                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3194                         ETH_ALEN;
3195                 mef_entry->filter[filt_num].offset = 28;
3196                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3197                 if (filt_num)
3198                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3199
3200                 filt_num++;
3201                 mef_entry->filter[filt_num].repeat = 16;
3202                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3203                                 ETH_ALEN);
3204                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3205                         ETH_ALEN;
3206                 mef_entry->filter[filt_num].offset = 56;
3207                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3208                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3209                 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3210         }
3211         return ret;
3212 }
3213
3214 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3215                                   struct cfg80211_wowlan *wowlan)
3216 {
3217         int ret = 0, num_entries = 1;
3218         struct mwifiex_ds_mef_cfg mef_cfg;
3219         struct mwifiex_mef_entry *mef_entry;
3220
3221         if (wowlan->n_patterns || wowlan->magic_pkt)
3222                 num_entries++;
3223
3224         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3225         if (!mef_entry)
3226                 return -ENOMEM;
3227
3228         memset(&mef_cfg, 0, sizeof(mef_cfg));
3229         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3230                 MWIFIEX_CRITERIA_UNICAST;
3231         mef_cfg.num_entries = num_entries;
3232         mef_cfg.mef_entry = mef_entry;
3233
3234         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3235
3236         if (wowlan->n_patterns || wowlan->magic_pkt) {
3237                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3238                                                    &mef_entry[1], wowlan);
3239                 if (ret)
3240                         goto err;
3241         }
3242
3243         if (!mef_cfg.criteria)
3244                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3245                         MWIFIEX_CRITERIA_UNICAST |
3246                         MWIFIEX_CRITERIA_MULTICAST;
3247
3248         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3249                         HostCmd_ACT_GEN_SET, 0,
3250                         &mef_cfg, true);
3251
3252 err:
3253         kfree(mef_entry);
3254         return ret;
3255 }
3256
3257 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3258                                     struct cfg80211_wowlan *wowlan)
3259 {
3260         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3261         struct mwifiex_ds_hs_cfg hs_cfg;
3262         int i, ret = 0;
3263         struct mwifiex_private *priv;
3264
3265         for (i = 0; i < adapter->priv_num; i++) {
3266                 priv = adapter->priv[i];
3267                 mwifiex_abort_cac(priv);
3268         }
3269
3270         mwifiex_cancel_all_pending_cmd(adapter);
3271
3272         if (!wowlan) {
3273                 mwifiex_dbg(adapter, ERROR,
3274                             "None of the WOWLAN triggers enabled\n");
3275                 return 0;
3276         }
3277
3278         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3279
3280         if (!priv->media_connected && !wowlan->nd_config) {
3281                 mwifiex_dbg(adapter, ERROR,
3282                             "Can not configure WOWLAN in disconnected state\n");
3283                 return 0;
3284         }
3285
3286         ret = mwifiex_set_mef_filter(priv, wowlan);
3287         if (ret) {
3288                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3289                 return ret;
3290         }
3291
3292         memset(&hs_cfg, 0, sizeof(hs_cfg));
3293         hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3294
3295         if (wowlan->nd_config) {
3296                 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3297                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3298                 mwifiex_cfg80211_sched_scan_start(wiphy, priv->netdev,
3299                                                   wowlan->nd_config);
3300         }
3301
3302         if (wowlan->disconnect) {
3303                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3304                 mwifiex_dbg(priv->adapter, INFO, "Wake on device disconnect\n");
3305         }
3306
3307         hs_cfg.is_invoke_hostcmd = false;
3308         hs_cfg.gpio = adapter->hs_cfg.gpio;
3309         hs_cfg.gap = adapter->hs_cfg.gap;
3310         ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
3311                                     MWIFIEX_SYNC_CMD, &hs_cfg);
3312         if (ret) {
3313                 mwifiex_dbg(adapter, ERROR,
3314                             "Failed to set HS params\n");
3315                 return ret;
3316         }
3317
3318         return ret;
3319 }
3320
3321 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3322 {
3323         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3324         struct mwifiex_private *priv =
3325                 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3326         struct mwifiex_ds_wakeup_reason wakeup_reason;
3327         struct cfg80211_wowlan_wakeup wakeup_report;
3328         int i;
3329
3330         mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3331                                   &wakeup_reason);
3332         memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3333
3334         wakeup_report.pattern_idx = -1;
3335
3336         switch (wakeup_reason.hs_wakeup_reason) {
3337         case NO_HSWAKEUP_REASON:
3338                 break;
3339         case BCAST_DATA_MATCHED:
3340                 break;
3341         case MCAST_DATA_MATCHED:
3342                 break;
3343         case UCAST_DATA_MATCHED:
3344                 break;
3345         case MASKTABLE_EVENT_MATCHED:
3346                 break;
3347         case NON_MASKABLE_EVENT_MATCHED:
3348                 if (wiphy->wowlan_config->disconnect)
3349                         wakeup_report.disconnect = true;
3350                 if (wiphy->wowlan_config->nd_config)
3351                         wakeup_report.net_detect = adapter->nd_info;
3352                 break;
3353         case NON_MASKABLE_CONDITION_MATCHED:
3354                 break;
3355         case MAGIC_PATTERN_MATCHED:
3356                 if (wiphy->wowlan_config->magic_pkt)
3357                         wakeup_report.magic_pkt = true;
3358                 if (wiphy->wowlan_config->n_patterns)
3359                         wakeup_report.pattern_idx = 1;
3360                 break;
3361         case CONTROL_FRAME_MATCHED:
3362                 break;
3363         case    MANAGEMENT_FRAME_MATCHED:
3364                 break;
3365         default:
3366                 break;
3367         }
3368
3369         if ((wakeup_reason.hs_wakeup_reason > 0) &&
3370             (wakeup_reason.hs_wakeup_reason <= 7))
3371                 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3372                                               GFP_KERNEL);
3373
3374         if (adapter->nd_info) {
3375                 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3376                         kfree(adapter->nd_info->matches[i]);
3377                 kfree(adapter->nd_info);
3378                 adapter->nd_info = NULL;
3379         }
3380
3381         return 0;
3382 }
3383
3384 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3385                                        bool enabled)
3386 {
3387         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3388
3389         device_set_wakeup_enable(adapter->dev, enabled);
3390 }
3391 #endif
3392
3393 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3394 {
3395         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3396         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3397         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3398
3399         if ((byte_seq[0] & 0x01) &&
3400             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3401                 return PACKET_TYPE_UNICAST;
3402         else if (!memcmp(byte_seq, bc_mac, 4))
3403                 return PACKET_TYPE_BROADCAST;
3404         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3405                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3406                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3407                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3408                 return PACKET_TYPE_MULTICAST;
3409
3410         return 0;
3411 }
3412
3413 static int
3414 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3415                                 struct cfg80211_coalesce_rules *crule,
3416                                 struct mwifiex_coalesce_rule *mrule)
3417 {
3418         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3419         struct filt_field_param *param;
3420         int i;
3421
3422         mrule->max_coalescing_delay = crule->delay;
3423
3424         param = mrule->params;
3425
3426         for (i = 0; i < crule->n_patterns; i++) {
3427                 memset(byte_seq, 0, sizeof(byte_seq));
3428                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3429                                                   byte_seq,
3430                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3431                         mwifiex_dbg(priv->adapter, ERROR,
3432                                     "Pattern not supported\n");
3433                         return -EOPNOTSUPP;
3434                 }
3435
3436                 if (!crule->patterns[i].pkt_offset) {
3437                         u8 pkt_type;
3438
3439                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3440                         if (pkt_type && mrule->pkt_type) {
3441                                 mwifiex_dbg(priv->adapter, ERROR,
3442                                             "Multiple packet types not allowed\n");
3443                                 return -EOPNOTSUPP;
3444                         } else if (pkt_type) {
3445                                 mrule->pkt_type = pkt_type;
3446                                 continue;
3447                         }
3448                 }
3449
3450                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3451                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3452                 else
3453                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3454
3455                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3456                 memcpy(param->operand_byte_stream, byte_seq,
3457                        param->operand_len);
3458                 param->offset = crule->patterns[i].pkt_offset;
3459                 param++;
3460
3461                 mrule->num_of_fields++;
3462         }
3463
3464         if (!mrule->pkt_type) {
3465                 mwifiex_dbg(priv->adapter, ERROR,
3466                             "Packet type can not be determined\n");
3467                 return -EOPNOTSUPP;
3468         }
3469
3470         return 0;
3471 }
3472
3473 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3474                                          struct cfg80211_coalesce *coalesce)
3475 {
3476         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3477         int i, ret;
3478         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3479         struct mwifiex_private *priv =
3480                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3481
3482         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3483         if (!coalesce) {
3484                 mwifiex_dbg(adapter, WARN,
3485                             "Disable coalesce and reset all previous rules\n");
3486                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3487                                         HostCmd_ACT_GEN_SET, 0,
3488                                         &coalesce_cfg, true);
3489         }
3490
3491         coalesce_cfg.num_of_rules = coalesce->n_rules;
3492         for (i = 0; i < coalesce->n_rules; i++) {
3493                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3494                                                       &coalesce_cfg.rule[i]);
3495                 if (ret) {
3496                         mwifiex_dbg(adapter, ERROR,
3497                                     "Recheck the patterns provided for rule %d\n",
3498                                 i + 1);
3499                         return ret;
3500                 }
3501         }
3502
3503         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3504                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3505 }
3506
3507 /* cfg80211 ops handler for tdls_mgmt.
3508  * Function prepares TDLS action frame packets and forwards them to FW
3509  */
3510 static int
3511 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3512                            const u8 *peer, u8 action_code, u8 dialog_token,
3513                            u16 status_code, u32 peer_capability,
3514                            bool initiator, const u8 *extra_ies,
3515                            size_t extra_ies_len)
3516 {
3517         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3518         int ret;
3519
3520         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3521                 return -ENOTSUPP;
3522
3523         /* make sure we are in station mode and connected */
3524         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3525                 return -ENOTSUPP;
3526
3527         switch (action_code) {
3528         case WLAN_TDLS_SETUP_REQUEST:
3529                 mwifiex_dbg(priv->adapter, MSG,
3530                             "Send TDLS Setup Request to %pM status_code=%d\n",
3531                             peer, status_code);
3532                 mwifiex_add_auto_tdls_peer(priv, peer);
3533                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3534                                                    dialog_token, status_code,
3535                                                    extra_ies, extra_ies_len);
3536                 break;
3537         case WLAN_TDLS_SETUP_RESPONSE:
3538                 mwifiex_add_auto_tdls_peer(priv, peer);
3539                 mwifiex_dbg(priv->adapter, MSG,
3540                             "Send TDLS Setup Response to %pM status_code=%d\n",
3541                             peer, status_code);
3542                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3543                                                    dialog_token, status_code,
3544                                                    extra_ies, extra_ies_len);
3545                 break;
3546         case WLAN_TDLS_SETUP_CONFIRM:
3547                 mwifiex_dbg(priv->adapter, MSG,
3548                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3549                             status_code);
3550                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3551                                                    dialog_token, status_code,
3552                                                    extra_ies, extra_ies_len);
3553                 break;
3554         case WLAN_TDLS_TEARDOWN:
3555                 mwifiex_dbg(priv->adapter, MSG,
3556                             "Send TDLS Tear down to %pM\n", peer);
3557                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3558                                                    dialog_token, status_code,
3559                                                    extra_ies, extra_ies_len);
3560                 break;
3561         case WLAN_TDLS_DISCOVERY_REQUEST:
3562                 mwifiex_dbg(priv->adapter, MSG,
3563                             "Send TDLS Discovery Request to %pM\n", peer);
3564                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3565                                                    dialog_token, status_code,
3566                                                    extra_ies, extra_ies_len);
3567                 break;
3568         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3569                 mwifiex_dbg(priv->adapter, MSG,
3570                             "Send TDLS Discovery Response to %pM\n", peer);
3571                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3572                                                    dialog_token, status_code,
3573                                                    extra_ies, extra_ies_len);
3574                 break;
3575         default:
3576                 mwifiex_dbg(priv->adapter, ERROR,
3577                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3578                 ret = -EINVAL;
3579                 break;
3580         }
3581
3582         return ret;
3583 }
3584
3585 static int
3586 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3587                            const u8 *peer, enum nl80211_tdls_operation action)
3588 {
3589         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3590
3591         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3592             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3593                 return -ENOTSUPP;
3594
3595         /* make sure we are in station mode and connected */
3596         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3597                 return -ENOTSUPP;
3598
3599         mwifiex_dbg(priv->adapter, MSG,
3600                     "TDLS peer=%pM, oper=%d\n", peer, action);
3601
3602         switch (action) {
3603         case NL80211_TDLS_ENABLE_LINK:
3604                 action = MWIFIEX_TDLS_ENABLE_LINK;
3605                 break;
3606         case NL80211_TDLS_DISABLE_LINK:
3607                 action = MWIFIEX_TDLS_DISABLE_LINK;
3608                 break;
3609         case NL80211_TDLS_TEARDOWN:
3610                 /* shouldn't happen!*/
3611                 mwifiex_dbg(priv->adapter, ERROR,
3612                             "tdls_oper: teardown from driver not supported\n");
3613                 return -EINVAL;
3614         case NL80211_TDLS_SETUP:
3615                 /* shouldn't happen!*/
3616                 mwifiex_dbg(priv->adapter, ERROR,
3617                             "tdls_oper: setup from driver not supported\n");
3618                 return -EINVAL;
3619         case NL80211_TDLS_DISCOVERY_REQ:
3620                 /* shouldn't happen!*/
3621                 mwifiex_dbg(priv->adapter, ERROR,
3622                             "tdls_oper: discovery from driver not supported\n");
3623                 return -EINVAL;
3624         default:
3625                 mwifiex_dbg(priv->adapter, ERROR,
3626                             "tdls_oper: operation not supported\n");
3627                 return -ENOTSUPP;
3628         }
3629
3630         return mwifiex_tdls_oper(priv, peer, action);
3631 }
3632
3633 static int
3634 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3635                                   const u8 *addr, u8 oper_class,
3636                                   struct cfg80211_chan_def *chandef)
3637 {
3638         struct mwifiex_sta_node *sta_ptr;
3639         unsigned long flags;
3640         u16 chan;
3641         u8 second_chan_offset, band;
3642         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3643
3644         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3645         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3646         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3647
3648         if (!sta_ptr) {
3649                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3650                           __func__, addr);
3651                 return -ENOENT;
3652         }
3653
3654         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3655               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3656                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3657                 return -ENOENT;
3658         }
3659
3660         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3661             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3662                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3663                 return -EALREADY;
3664         }
3665
3666         chan = chandef->chan->hw_value;
3667         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3668         band = chandef->chan->band;
3669         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3670
3671         return 0;
3672 }
3673
3674 static void
3675 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3676                                          struct net_device *dev,
3677                                          const u8 *addr)
3678 {
3679         struct mwifiex_sta_node *sta_ptr;
3680         unsigned long flags;
3681         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3682
3683         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3684         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3685         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3686
3687         if (!sta_ptr) {
3688                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3689                           __func__, addr);
3690         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3691                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3692                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3693                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3694                           addr);
3695         } else
3696                 mwifiex_stop_tdls_cs(priv, addr);
3697 }
3698
3699 static int
3700 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3701                              const u8 *mac, struct station_parameters *params)
3702 {
3703         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3704
3705         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3706                 return -ENOTSUPP;
3707
3708         /* make sure we are in station mode and connected */
3709         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3710                 return -ENOTSUPP;
3711
3712         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3713 }
3714
3715 static int
3716 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3717                                 struct cfg80211_csa_settings *params)
3718 {
3719         struct ieee_types_header *chsw_ie;
3720         struct ieee80211_channel_sw_ie *channel_sw;
3721         int chsw_msec;
3722         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3723
3724         if (priv->adapter->scan_processing) {
3725                 mwifiex_dbg(priv->adapter, ERROR,
3726                             "radar detection: scan in process...\n");
3727                 return -EBUSY;
3728         }
3729
3730         if (priv->wdev.cac_started)
3731                 return -EBUSY;
3732
3733         if (cfg80211_chandef_identical(&params->chandef,
3734                                        &priv->dfs_chandef))
3735                 return -EINVAL;
3736
3737         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3738                                            params->beacon_csa.tail,
3739                                            params->beacon_csa.tail_len);
3740         if (!chsw_ie) {
3741                 mwifiex_dbg(priv->adapter, ERROR,
3742                             "Could not parse channel switch announcement IE\n");
3743                 return -EINVAL;
3744         }
3745
3746         channel_sw = (void *)(chsw_ie + 1);
3747         if (channel_sw->mode) {
3748                 if (netif_carrier_ok(priv->netdev))
3749                         netif_carrier_off(priv->netdev);
3750                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3751         }
3752
3753         if (mwifiex_del_mgmt_ies(priv))
3754                 mwifiex_dbg(priv->adapter, ERROR,
3755                             "Failed to delete mgmt IEs!\n");
3756
3757         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3758                 mwifiex_dbg(priv->adapter, ERROR,
3759                             "%s: setting mgmt ies failed\n", __func__);
3760                 return -EFAULT;
3761         }
3762
3763         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3764         memcpy(&priv->beacon_after, &params->beacon_after,
3765                sizeof(priv->beacon_after));
3766
3767         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3768         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3769                            msecs_to_jiffies(chsw_msec));
3770         return 0;
3771 }
3772
3773 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3774                                         struct wireless_dev *wdev,
3775                                         struct cfg80211_chan_def *chandef)
3776 {
3777         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3778         struct mwifiex_bssdescriptor *curr_bss;
3779         struct ieee80211_channel *chan;
3780         u8 second_chan_offset;
3781         enum nl80211_channel_type chan_type;
3782         enum ieee80211_band band;
3783         int freq;
3784         int ret = -ENODATA;
3785
3786         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3787             cfg80211_chandef_valid(&priv->bss_chandef)) {
3788                 *chandef = priv->bss_chandef;
3789                 ret = 0;
3790         } else if (priv->media_connected) {
3791                 curr_bss = &priv->curr_bss_params.bss_descriptor;
3792                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3793                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3794                 chan = ieee80211_get_channel(wiphy, freq);
3795
3796                 if (priv->ht_param_present) {
3797                         second_chan_offset = priv->assoc_resp_ht_param &
3798                                         IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3799                         chan_type = mwifiex_sec_chan_offset_to_chan_type
3800                                                         (second_chan_offset);
3801                         cfg80211_chandef_create(chandef, chan, chan_type);
3802                 } else {
3803                         cfg80211_chandef_create(chandef, chan,
3804                                                 NL80211_CHAN_NO_HT);
3805                 }
3806                 ret = 0;
3807         }
3808
3809         return ret;
3810 }
3811
3812 static int
3813 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3814                                        struct net_device *dev,
3815                                        struct cfg80211_chan_def *chandef,
3816                                        u32 cac_time_ms)
3817 {
3818         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3819         struct mwifiex_radar_params radar_params;
3820
3821         if (priv->adapter->scan_processing) {
3822                 mwifiex_dbg(priv->adapter, ERROR,
3823                             "radar detection: scan already in process...\n");
3824                 return -EBUSY;
3825         }
3826
3827         if (!mwifiex_is_11h_active(priv)) {
3828                 mwifiex_dbg(priv->adapter, INFO,
3829                             "Enable 11h extensions in FW\n");
3830                 if (mwifiex_11h_activate(priv, true)) {
3831                         mwifiex_dbg(priv->adapter, ERROR,
3832                                     "Failed to activate 11h extensions!!");
3833                         return -1;
3834                 }
3835                 priv->state_11h.is_11h_active = true;
3836         }
3837
3838         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3839         radar_params.chandef = chandef;
3840         radar_params.cac_time_ms = cac_time_ms;
3841
3842         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3843
3844         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3845                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3846                 return -1;
3847
3848         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3849                            msecs_to_jiffies(cac_time_ms));
3850         return 0;
3851 }
3852
3853 static int
3854 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3855                                 const u8 *mac,
3856                                 struct station_parameters *params)
3857 {
3858         int ret;
3859         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3860
3861         /* we support change_station handler only for TDLS peers*/
3862         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3863                 return -ENOTSUPP;
3864
3865         /* make sure we are in station mode and connected */
3866         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3867                 return -ENOTSUPP;
3868
3869         priv->sta_params = params;
3870
3871         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3872         priv->sta_params = NULL;
3873
3874         return ret;
3875 }
3876
3877 /* station cfg80211 operations */
3878 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3879         .add_virtual_intf = mwifiex_add_virtual_intf,
3880         .del_virtual_intf = mwifiex_del_virtual_intf,
3881         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3882         .scan = mwifiex_cfg80211_scan,
3883         .connect = mwifiex_cfg80211_connect,
3884         .disconnect = mwifiex_cfg80211_disconnect,
3885         .get_station = mwifiex_cfg80211_get_station,
3886         .dump_station = mwifiex_cfg80211_dump_station,
3887         .dump_survey = mwifiex_cfg80211_dump_survey,
3888         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3889         .join_ibss = mwifiex_cfg80211_join_ibss,
3890         .leave_ibss = mwifiex_cfg80211_leave_ibss,
3891         .add_key = mwifiex_cfg80211_add_key,
3892         .del_key = mwifiex_cfg80211_del_key,
3893         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3894         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3895         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
3896         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3897         .set_default_key = mwifiex_cfg80211_set_default_key,
3898         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
3899         .set_tx_power = mwifiex_cfg80211_set_tx_power,
3900         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3901         .start_ap = mwifiex_cfg80211_start_ap,
3902         .stop_ap = mwifiex_cfg80211_stop_ap,
3903         .change_beacon = mwifiex_cfg80211_change_beacon,
3904         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3905         .set_antenna = mwifiex_cfg80211_set_antenna,
3906         .del_station = mwifiex_cfg80211_del_station,
3907         .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
3908         .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
3909 #ifdef CONFIG_PM
3910         .suspend = mwifiex_cfg80211_suspend,
3911         .resume = mwifiex_cfg80211_resume,
3912         .set_wakeup = mwifiex_cfg80211_set_wakeup,
3913 #endif
3914         .set_coalesce = mwifiex_cfg80211_set_coalesce,
3915         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3916         .tdls_oper = mwifiex_cfg80211_tdls_oper,
3917         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
3918         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
3919         .add_station = mwifiex_cfg80211_add_station,
3920         .change_station = mwifiex_cfg80211_change_station,
3921         .get_channel = mwifiex_cfg80211_get_channel,
3922         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3923         .channel_switch = mwifiex_cfg80211_channel_switch,
3924 };
3925
3926 #ifdef CONFIG_PM
3927 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3928         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
3929                 WIPHY_WOWLAN_NET_DETECT,
3930         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3931         .pattern_min_len = 1,
3932         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3933         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3934         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
3935 };
3936 #endif
3937
3938 static bool mwifiex_is_valid_alpha2(const char *alpha2)
3939 {
3940         if (!alpha2 || strlen(alpha2) != 2)
3941                 return false;
3942
3943         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
3944                 return true;
3945
3946         return false;
3947 }
3948
3949 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
3950         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
3951         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
3952         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
3953         .pattern_min_len = 1,
3954         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3955         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3956 };
3957
3958 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
3959 {
3960         u32 n_channels_bg, n_channels_a = 0;
3961
3962         n_channels_bg = mwifiex_band_2ghz.n_channels;
3963
3964         if (adapter->config_bands & BAND_A)
3965                 n_channels_a = mwifiex_band_5ghz.n_channels;
3966
3967         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
3968         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
3969                                       adapter->num_in_chan_stats);
3970
3971         if (!adapter->chan_stats)
3972                 return -ENOMEM;
3973
3974         return 0;
3975 }
3976
3977 /*
3978  * This function registers the device with CFG802.11 subsystem.
3979  *
3980  * The function creates the wireless device/wiphy, populates it with
3981  * default parameters and handler function pointers, and finally
3982  * registers the device.
3983  */
3984
3985 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3986 {
3987         int ret;
3988         void *wdev_priv;
3989         struct wiphy *wiphy;
3990         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3991         u8 *country_code;
3992         u32 thr, retry;
3993
3994         /* create a new wiphy for use with cfg80211 */
3995         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
3996                           sizeof(struct mwifiex_adapter *));
3997         if (!wiphy) {
3998                 mwifiex_dbg(adapter, ERROR,
3999                             "%s: creating new wiphy\n", __func__);
4000                 return -ENOMEM;
4001         }
4002         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4003         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4004         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4005         wiphy->max_remain_on_channel_duration = 5000;
4006         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4007                                  BIT(NL80211_IFTYPE_ADHOC) |
4008                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
4009                                  BIT(NL80211_IFTYPE_P2P_GO) |
4010                                  BIT(NL80211_IFTYPE_AP);
4011
4012         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4013         if (adapter->config_bands & BAND_A)
4014                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4015         else
4016                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
4017
4018         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4019                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4020         else if (adapter->is_hw_11ac_capable)
4021                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4022         else
4023                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4024         wiphy->n_iface_combinations = 1;
4025
4026         /* Initialize cipher suits */
4027         wiphy->cipher_suites = mwifiex_cipher_suites;
4028         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4029
4030         if (adapter->region_code)
4031                 wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS |
4032                                            REGULATORY_COUNTRY_IE_IGNORE;
4033
4034         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4035         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4036         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4037                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4038                         WIPHY_FLAG_AP_UAPSD |
4039                         WIPHY_FLAG_SUPPORTS_SCHED_SCAN |
4040                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4041                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4042                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
4043
4044         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4045                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4046                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4047
4048 #ifdef CONFIG_PM
4049         wiphy->wowlan = &mwifiex_wowlan_support;
4050 #endif
4051
4052         wiphy->coalesce = &mwifiex_coalesce_support;
4053
4054         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4055                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4056                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4057
4058         wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4059         wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4060         wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4061
4062         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4063         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4064
4065         wiphy->features |= NL80211_FEATURE_HT_IBSS |
4066                            NL80211_FEATURE_INACTIVITY_TIMER |
4067                            NL80211_FEATURE_NEED_OBSS_SCAN;
4068
4069         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4070                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4071
4072         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4073                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4074
4075         /* Reserve space for mwifiex specific private data for BSS */
4076         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4077
4078         wiphy->reg_notifier = mwifiex_reg_notifier;
4079
4080         /* Set struct mwifiex_adapter pointer in wiphy_priv */
4081         wdev_priv = wiphy_priv(wiphy);
4082         *(unsigned long *)wdev_priv = (unsigned long)adapter;
4083
4084         set_wiphy_dev(wiphy, priv->adapter->dev);
4085
4086         ret = wiphy_register(wiphy);
4087         if (ret < 0) {
4088                 mwifiex_dbg(adapter, ERROR,
4089                             "%s: wiphy_register failed: %d\n", __func__, ret);
4090                 wiphy_free(wiphy);
4091                 return ret;
4092         }
4093
4094         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4095                 mwifiex_dbg(adapter, INFO,
4096                             "driver hint alpha2: %2.2s\n", reg_alpha2);
4097                 regulatory_hint(wiphy, reg_alpha2);
4098         } else {
4099                 if (adapter->region_code == 0x00) {
4100                         mwifiex_dbg(adapter, WARN, "Ignore world regulatory domain\n");
4101                 } else {
4102                         country_code =
4103                                 mwifiex_11d_code_2_region(adapter->region_code);
4104                         if (country_code &&
4105                             regulatory_hint(wiphy, country_code))
4106                                 mwifiex_dbg(priv->adapter, ERROR, "regulatory_hint() failed\n");
4107                 }
4108         }
4109
4110         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4111                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4112         wiphy->frag_threshold = thr;
4113         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4114                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4115         wiphy->rts_threshold = thr;
4116         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4117                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4118         wiphy->retry_short = (u8) retry;
4119         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4120                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4121         wiphy->retry_long = (u8) retry;
4122
4123         adapter->wiphy = wiphy;
4124         return ret;
4125 }