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

   1 /*
   2  * NXP Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright 2011-2020 NXP
   5  *
   6  * This software file (the "File") is distributed by NXP
   7  * under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22 #include "11n.h"
  23 #include "wmm.h"
  24
  25 static char *reg_alpha2;
  26 module_param(reg_alpha2, charp, 0);
  27
  28 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  29         {
  30                 .max = MWIFIEX_MAX_BSS_NUM,
  31                 .types = BIT(NL80211_IFTYPE_STATION) |
  32                                    BIT(NL80211_IFTYPE_P2P_GO) |
  33                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
  34                                    BIT(NL80211_IFTYPE_AP),
  35         },
  36 };
  37
  38 static const struct ieee80211_iface_combination
  39 mwifiex_iface_comb_ap_sta = {
  40         .limits = mwifiex_ap_sta_limits,
  41         .num_different_channels = 1,
  42         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  43         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  44         .beacon_int_infra_match = true,
  45         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  46                                 BIT(NL80211_CHAN_WIDTH_20) |
  47                                 BIT(NL80211_CHAN_WIDTH_40),
  48 };
  49
  50 static const struct ieee80211_iface_combination
  51 mwifiex_iface_comb_ap_sta_vht = {
  52         .limits = mwifiex_ap_sta_limits,
  53         .num_different_channels = 1,
  54         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  55         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  56         .beacon_int_infra_match = true,
  57         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  58                                 BIT(NL80211_CHAN_WIDTH_20) |
  59                                 BIT(NL80211_CHAN_WIDTH_40) |
  60                                 BIT(NL80211_CHAN_WIDTH_80),
  61 };
  62
  63 static const struct
  64 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  65         .limits = mwifiex_ap_sta_limits,
  66         .num_different_channels = 2,
  67         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  68         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  69         .beacon_int_infra_match = true,
  70 };
  71
  72 /*
  73  * This function maps the nl802.11 channel type into driver channel type.
  74  *
  75  * The mapping is as follows -
  76  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  77  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  78  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  79  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  80  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  81  */
  82 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  83 {
  84         switch (chan_type) {
  85         case NL80211_CHAN_NO_HT:
  86         case NL80211_CHAN_HT20:
  87                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  88         case NL80211_CHAN_HT40PLUS:
  89                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  90         case NL80211_CHAN_HT40MINUS:
  91                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  92         default:
  93                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  94         }
  95 }
  96
  97 /* This function maps IEEE HT secondary channel type to NL80211 channel type
  98  */
  99 u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
 100 {
 101         struct mwifiex_channel_band channel_band;
 102         int ret;
 103
 104         ret = mwifiex_get_chan_info(priv, &channel_band);
 105
 106         if (!ret) {
 107                 switch (channel_band.band_config.chan_width) {
 108                 case CHAN_BW_20MHZ:
 109                         if (IS_11N_ENABLED(priv))
 110                                 return NL80211_CHAN_HT20;
 111                         else
 112                                 return NL80211_CHAN_NO_HT;
 113                 case CHAN_BW_40MHZ:
 114                         if (channel_band.band_config.chan2_offset ==
 115                             SEC_CHAN_ABOVE)
 116                                 return NL80211_CHAN_HT40PLUS;
 117                         else
 118                                 return NL80211_CHAN_HT40MINUS;
 119                 default:
 120                         return NL80211_CHAN_HT20;
 121                 }
 122         }
 123
 124         return NL80211_CHAN_HT20;
 125 }
 126
 127 /*
 128  * This function checks whether WEP is set.
 129  */
 130 static int
 131 mwifiex_is_alg_wep(u32 cipher)
 132 {
 133         switch (cipher) {
 134         case WLAN_CIPHER_SUITE_WEP40:
 135         case WLAN_CIPHER_SUITE_WEP104:
 136                 return 1;
 137         default:
 138                 break;
 139         }
 140
 141         return 0;
 142 }
 143
 144 /*
 145  * This function retrieves the private structure from kernel wiphy structure.
 146  */
 147 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 148 {
 149         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 150 }
 151
 152 /*
 153  * CFG802.11 operation handler to delete a network key.
 154  */
 155 static int
 156 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 157                          u8 key_index, bool pairwise, const u8 *mac_addr)
 158 {
 159         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 160         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 161         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 162
 163         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 164                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 165                 return -EFAULT;
 166         }
 167
 168         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 169         return 0;
 170 }
 171
 172 /*
 173  * This function forms an skb for management frame.
 174  */
 175 static int
 176 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 177 {
 178         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 179         u16 pkt_len;
 180         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 181
 182         pkt_len = len + ETH_ALEN;
 183
 184         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 185                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 186         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 187
 188         memcpy(skb_push(skb, sizeof(tx_control)),
 189                &tx_control, sizeof(tx_control));
 190
 191         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 192
 193         /* Add packet data and address4 */
 194         skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
 195         skb_put_data(skb, addr, ETH_ALEN);
 196         skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
 197                      len - sizeof(struct ieee80211_hdr_3addr));
 198
 199         skb->priority = LOW_PRIO_TID;
 200         __net_timestamp(skb);
 201
 202         return 0;
 203 }
 204
 205 /*
 206  * CFG802.11 operation handler to transmit a management frame.
 207  */
 208 static int
 209 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 210                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 211 {
 212         const u8 *buf = params->buf;
 213         size_t len = params->len;
 214         struct sk_buff *skb;
 215         u16 pkt_len;
 216         const struct ieee80211_mgmt *mgmt;
 217         struct mwifiex_txinfo *tx_info;
 218         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 219
 220         if (!buf || !len) {
 221                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 222                 return -EFAULT;
 223         }
 224
 225         mgmt = (const struct ieee80211_mgmt *)buf;
 226         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 227             ieee80211_is_probe_resp(mgmt->frame_control)) {
 228                 /* Since we support offload probe resp, we need to skip probe
 229                  * resp in AP or GO mode */
 230                 mwifiex_dbg(priv->adapter, INFO,
 231                             "info: skip to send probe resp in AP or GO mode\n");
 232                 return 0;
 233         }
 234
 235         pkt_len = len + ETH_ALEN;
 236         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 237                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 238                             pkt_len + sizeof(pkt_len));
 239
 240         if (!skb) {
 241                 mwifiex_dbg(priv->adapter, ERROR,
 242                             "allocate skb failed for management frame\n");
 243                 return -ENOMEM;
 244         }
 245
 246         tx_info = MWIFIEX_SKB_TXCB(skb);
 247         memset(tx_info, 0, sizeof(*tx_info));
 248         tx_info->bss_num = priv->bss_num;
 249         tx_info->bss_type = priv->bss_type;
 250         tx_info->pkt_len = pkt_len;
 251
 252         mwifiex_form_mgmt_frame(skb, buf, len);
 253         *cookie = prandom_u32() | 1;
 254
 255         if (ieee80211_is_action(mgmt->frame_control))
 256                 skb = mwifiex_clone_skb_for_tx_status(priv,
 257                                                       skb,
 258                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 259         else
 260                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 261                                         GFP_ATOMIC);
 262
 263         mwifiex_queue_tx_pkt(priv, skb);
 264
 265         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 266         return 0;
 267 }
 268
 269 /*
 270  * CFG802.11 operation handler to register a mgmt frame.
 271  */
 272 static void
 273 mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
 274                                                  struct wireless_dev *wdev,
 275                                                  struct mgmt_frame_regs *upd)
 276 {
 277         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 278         u32 mask = upd->interface_stypes;
 279
 280         if (mask != priv->mgmt_frame_mask) {
 281                 priv->mgmt_frame_mask = mask;
 282                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 283                                  HostCmd_ACT_GEN_SET, 0,
 284                                  &priv->mgmt_frame_mask, false);
 285                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 286         }
 287 }
 288
 289 /*
 290  * CFG802.11 operation handler to remain on channel.
 291  */
 292 static int
 293 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 294                                    struct wireless_dev *wdev,
 295                                    struct ieee80211_channel *chan,
 296                                    unsigned int duration, u64 *cookie)
 297 {
 298         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 299         int ret;
 300
 301         if (!chan || !cookie) {
 302                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 303                 return -EINVAL;
 304         }
 305
 306         if (priv->roc_cfg.cookie) {
 307                 mwifiex_dbg(priv->adapter, INFO,
 308                             "info: ongoing ROC, cookie = 0x%llx\n",
 309                             priv->roc_cfg.cookie);
 310                 return -EBUSY;
 311         }
 312
 313         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 314                                          duration);
 315
 316         if (!ret) {
 317                 *cookie = prandom_u32() | 1;
 318                 priv->roc_cfg.cookie = *cookie;
 319                 priv->roc_cfg.chan = *chan;
 320
 321                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 322                                           duration, GFP_ATOMIC);
 323
 324                 mwifiex_dbg(priv->adapter, INFO,
 325                             "info: ROC, cookie = 0x%llx\n", *cookie);
 326         }
 327
 328         return ret;
 329 }
 330
 331 /*
 332  * CFG802.11 operation handler to cancel remain on channel.
 333  */
 334 static int
 335 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 336                                           struct wireless_dev *wdev, u64 cookie)
 337 {
 338         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 339         int ret;
 340
 341         if (cookie != priv->roc_cfg.cookie)
 342                 return -ENOENT;
 343
 344         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 345                                          &priv->roc_cfg.chan, 0);
 346
 347         if (!ret) {
 348                 cfg80211_remain_on_channel_expired(wdev, cookie,
 349                                                    &priv->roc_cfg.chan,
 350                                                    GFP_ATOMIC);
 351
 352                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 353
 354                 mwifiex_dbg(priv->adapter, INFO,
 355                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
 356         }
 357
 358         return ret;
 359 }
 360
 361 /*
 362  * CFG802.11 operation handler to set Tx power.
 363  */
 364 static int
 365 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 366                               struct wireless_dev *wdev,
 367                               enum nl80211_tx_power_setting type,
 368                               int mbm)
 369 {
 370         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 371         struct mwifiex_private *priv;
 372         struct mwifiex_power_cfg power_cfg;
 373         int dbm = MBM_TO_DBM(mbm);
 374
 375         switch (type) {
 376         case NL80211_TX_POWER_FIXED:
 377                 power_cfg.is_power_auto = 0;
 378                 power_cfg.is_power_fixed = 1;
 379                 power_cfg.power_level = dbm;
 380                 break;
 381         case NL80211_TX_POWER_LIMITED:
 382                 power_cfg.is_power_auto = 0;
 383                 power_cfg.is_power_fixed = 0;
 384                 power_cfg.power_level = dbm;
 385                 break;
 386         case NL80211_TX_POWER_AUTOMATIC:
 387                 power_cfg.is_power_auto = 1;
 388                 break;
 389         }
 390
 391         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 392
 393         return mwifiex_set_tx_power(priv, &power_cfg);
 394 }
 395
 396 /*
 397  * CFG802.11 operation handler to get Tx power.
 398  */
 399 static int
 400 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 401                               struct wireless_dev *wdev,
 402                               int *dbm)
 403 {
 404         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 405         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 406                                                         MWIFIEX_BSS_ROLE_ANY);
 407         int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 408                                    HostCmd_ACT_GEN_GET, 0, NULL, true);
 409
 410         if (ret < 0)
 411                 return ret;
 412
 413         /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 414         *dbm = priv->tx_power_level;
 415
 416         return 0;
 417 }
 418
 419 /*
 420  * CFG802.11 operation handler to set Power Save option.
 421  *
 422  * The timeout value, if provided, is currently ignored.
 423  */
 424 static int
 425 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 426                                 struct net_device *dev,
 427                                 bool enabled, int timeout)
 428 {
 429         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 430         u32 ps_mode;
 431
 432         if (timeout)
 433                 mwifiex_dbg(priv->adapter, INFO,
 434                             "info: ignore timeout value for IEEE Power Save\n");
 435
 436         ps_mode = enabled;
 437
 438         return mwifiex_drv_set_power(priv, &ps_mode);
 439 }
 440
 441 /*
 442  * CFG802.11 operation handler to set the default network key.
 443  */
 444 static int
 445 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 446                                  u8 key_index, bool unicast,
 447                                  bool multicast)
 448 {
 449         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 450
 451         /* Return if WEP key not configured */
 452         if (!priv->sec_info.wep_enabled)
 453                 return 0;
 454
 455         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 456                 priv->wep_key_curr_index = key_index;
 457         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 458                                       NULL, 0)) {
 459                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 460                 return -EFAULT;
 461         }
 462
 463         return 0;
 464 }
 465
 466 /*
 467  * CFG802.11 operation handler to add a network key.
 468  */
 469 static int
 470 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 471                          u8 key_index, bool pairwise, const u8 *mac_addr,
 472                          struct key_params *params)
 473 {
 474         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 475         struct mwifiex_wep_key *wep_key;
 476         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 477         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 478
 479         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 480             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 481              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 482                 if (params->key && params->key_len) {
 483                         wep_key = &priv->wep_key[key_index];
 484                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 485                         memcpy(wep_key->key_material, params->key,
 486                                params->key_len);
 487                         wep_key->key_index = key_index;
 488                         wep_key->key_length = params->key_len;
 489                         priv->sec_info.wep_enabled = 1;
 490                 }
 491                 return 0;
 492         }
 493
 494         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 495                                key_index, peer_mac, 0)) {
 496                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 497                 return -EFAULT;
 498         }
 499
 500         return 0;
 501 }
 502
 503 /*
 504  * CFG802.11 operation handler to set default mgmt key.
 505  */
 506 static int
 507 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
 508                                       struct net_device *netdev,
 509                                       u8 key_index)
 510 {
 511         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 512         struct mwifiex_ds_encrypt_key encrypt_key;
 513
 514         wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
 515
 516         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 517         encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
 518         encrypt_key.key_index = key_index;
 519         encrypt_key.is_igtk_def_key = true;
 520         eth_broadcast_addr(encrypt_key.mac_addr);
 521
 522         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 523                              HostCmd_ACT_GEN_SET, true, &encrypt_key, true)) {
 524                 mwifiex_dbg(priv->adapter, ERROR,
 525                             "Sending KEY_MATERIAL command failed\n");
 526                 return -1;
 527         }
 528
 529         return 0;
 530 }
 531
 532 /*
 533  * This function sends domain information to the firmware.
 534  *
 535  * The following information are passed to the firmware -
 536  *      - Country codes
 537  *      - Sub bands (first channel, number of channels, maximum Tx power)
 538  */
 539 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 540 {
 541         u8 no_of_triplet = 0;
 542         struct ieee80211_country_ie_triplet *t;
 543         u8 no_of_parsed_chan = 0;
 544         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 545         u8 i, flag = 0;
 546         enum nl80211_band band;
 547         struct ieee80211_supported_band *sband;
 548         struct ieee80211_channel *ch;
 549         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 550         struct mwifiex_private *priv;
 551         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 552
 553         /* Set country code */
 554         domain_info->country_code[0] = adapter->country_code[0];
 555         domain_info->country_code[1] = adapter->country_code[1];
 556         domain_info->country_code[2] = ' ';
 557
 558         band = mwifiex_band_to_radio_type(adapter->config_bands);
 559         if (!wiphy->bands[band]) {
 560                 mwifiex_dbg(adapter, ERROR,
 561                             "11D: setting domain info in FW\n");
 562                 return -1;
 563         }
 564
 565         sband = wiphy->bands[band];
 566
 567         for (i = 0; i < sband->n_channels ; i++) {
 568                 ch = &sband->channels[i];
 569                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 570                         continue;
 571
 572                 if (!flag) {
 573                         flag = 1;
 574                         first_chan = (u32) ch->hw_value;
 575                         next_chan = first_chan;
 576                         max_pwr = ch->max_power;
 577                         no_of_parsed_chan = 1;
 578                         continue;
 579                 }
 580
 581                 if (ch->hw_value == next_chan + 1 &&
 582                     ch->max_power == max_pwr) {
 583                         next_chan++;
 584                         no_of_parsed_chan++;
 585                 } else {
 586                         t = &domain_info->triplet[no_of_triplet];
 587                         t->chans.first_channel = first_chan;
 588                         t->chans.num_channels = no_of_parsed_chan;
 589                         t->chans.max_power = max_pwr;
 590                         no_of_triplet++;
 591                         first_chan = (u32) ch->hw_value;
 592                         next_chan = first_chan;
 593                         max_pwr = ch->max_power;
 594                         no_of_parsed_chan = 1;
 595                 }
 596         }
 597
 598         if (flag) {
 599                 t = &domain_info->triplet[no_of_triplet];
 600                 t->chans.first_channel = first_chan;
 601                 t->chans.num_channels = no_of_parsed_chan;
 602                 t->chans.max_power = max_pwr;
 603                 no_of_triplet++;
 604         }
 605
 606         domain_info->no_of_triplet = no_of_triplet;
 607
 608         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 609
 610         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 611                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 612                 mwifiex_dbg(adapter, INFO,
 613                             "11D: setting domain info in FW\n");
 614                 return -1;
 615         }
 616
 617         return 0;
 618 }
 619
 620 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
 621 {
 622         struct ieee80211_supported_band *sband;
 623         struct ieee80211_channel *chan;
 624         unsigned int i;
 625
 626         if (!wiphy->bands[NL80211_BAND_5GHZ])
 627                 return;
 628         sband = wiphy->bands[NL80211_BAND_5GHZ];
 629
 630         for (i = 0; i < sband->n_channels; i++) {
 631                 chan = &sband->channels[i];
 632                 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
 633                     (chan->flags & IEEE80211_CHAN_RADAR))
 634                         chan->flags |= IEEE80211_CHAN_NO_IR;
 635         }
 636 }
 637
 638 /*
 639  * CFG802.11 regulatory domain callback function.
 640  *
 641  * This function is called when the regulatory domain is changed due to the
 642  * following reasons -
 643  *      - Set by driver
 644  *      - Set by system core
 645  *      - Set by user
 646  *      - Set bt Country IE
 647  */
 648 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 649                                  struct regulatory_request *request)
 650 {
 651         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 652         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 653                                                         MWIFIEX_BSS_ROLE_ANY);
 654         mwifiex_dbg(adapter, INFO,
 655                     "info: cfg80211 regulatory domain callback for %c%c\n",
 656                     request->alpha2[0], request->alpha2[1]);
 657         mwifiex_reg_apply_radar_flags(wiphy);
 658
 659         switch (request->initiator) {
 660         case NL80211_REGDOM_SET_BY_DRIVER:
 661         case NL80211_REGDOM_SET_BY_CORE:
 662         case NL80211_REGDOM_SET_BY_USER:
 663         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 664                 break;
 665         default:
 666                 mwifiex_dbg(adapter, ERROR,
 667                             "unknown regdom initiator: %d\n",
 668                             request->initiator);
 669                 return;
 670         }
 671
 672         /* Don't send world or same regdom info to firmware */
 673         if (strncmp(request->alpha2, "00", 2) &&
 674             strncmp(request->alpha2, adapter->country_code,
 675                     sizeof(request->alpha2))) {
 676                 memcpy(adapter->country_code, request->alpha2,
 677                        sizeof(request->alpha2));
 678                 mwifiex_send_domain_info_cmd_fw(wiphy);
 679                 mwifiex_dnld_txpwr_table(priv);
 680         }
 681 }
 682
 683 /*
 684  * This function sets the fragmentation threshold.
 685  *
 686  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 687  * and MWIFIEX_FRAG_MAX_VALUE.
 688  */
 689 static int
 690 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 691 {
 692         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 693             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 694                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 695
 696         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 697                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 698                                 &frag_thr, true);
 699 }
 700
 701 /*
 702  * This function sets the RTS threshold.
 703
 704  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 705  * and MWIFIEX_RTS_MAX_VALUE.
 706  */
 707 static int
 708 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 709 {
 710         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 711                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 712
 713         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 714                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 715                                 &rts_thr, true);
 716 }
 717
 718 /*
 719  * CFG802.11 operation handler to set wiphy parameters.
 720  *
 721  * This function can be used to set the RTS threshold and the
 722  * Fragmentation threshold of the driver.
 723  */
 724 static int
 725 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 726 {
 727         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 728         struct mwifiex_private *priv;
 729         struct mwifiex_uap_bss_param *bss_cfg;
 730         int ret;
 731
 732         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 733
 734         switch (priv->bss_role) {
 735         case MWIFIEX_BSS_ROLE_UAP:
 736                 if (priv->bss_started) {
 737                         mwifiex_dbg(adapter, ERROR,
 738                                     "cannot change wiphy params when bss started");
 739                         return -EINVAL;
 740                 }
 741
 742                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 743                 if (!bss_cfg)
 744                         return -ENOMEM;
 745
 746                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 747
 748                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 749                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 750                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 751                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 752                 if (changed & WIPHY_PARAM_RETRY_LONG)
 753                         bss_cfg->retry_limit = wiphy->retry_long;
 754
 755                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 756                                        HostCmd_ACT_GEN_SET,
 757                                        UAP_BSS_PARAMS_I, bss_cfg,
 758                                        false);
 759
 760                 kfree(bss_cfg);
 761                 if (ret) {
 762                         mwifiex_dbg(adapter, ERROR,
 763                                     "Failed to set wiphy phy params\n");
 764                         return ret;
 765                 }
 766                 break;
 767
 768         case MWIFIEX_BSS_ROLE_STA:
 769                 if (priv->media_connected) {
 770                         mwifiex_dbg(adapter, ERROR,
 771                                     "cannot change wiphy params when connected");
 772                         return -EINVAL;
 773                 }
 774                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 775                         ret = mwifiex_set_rts(priv,
 776                                               wiphy->rts_threshold);
 777                         if (ret)
 778                                 return ret;
 779                 }
 780                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 781                         ret = mwifiex_set_frag(priv,
 782                                                wiphy->frag_threshold);
 783                         if (ret)
 784                                 return ret;
 785                 }
 786                 break;
 787         }
 788
 789         return 0;
 790 }
 791
 792 static int
 793 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 794 {
 795         u16 mode = P2P_MODE_DISABLE;
 796
 797         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 798                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 799                 return -1;
 800
 801         return 0;
 802 }
 803
 804 /*
 805  * This function initializes the functionalities for P2P client.
 806  * The P2P client initialization sequence is:
 807  * disable -> device -> client
 808  */
 809 static int
 810 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 811 {
 812         u16 mode;
 813
 814         if (mwifiex_cfg80211_deinit_p2p(priv))
 815                 return -1;
 816
 817         mode = P2P_MODE_DEVICE;
 818         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 819                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 820                 return -1;
 821
 822         mode = P2P_MODE_CLIENT;
 823         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 824                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 825                 return -1;
 826
 827         return 0;
 828 }
 829
 830 /*
 831  * This function initializes the functionalities for P2P GO.
 832  * The P2P GO initialization sequence is:
 833  * disable -> device -> GO
 834  */
 835 static int
 836 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 837 {
 838         u16 mode;
 839
 840         if (mwifiex_cfg80211_deinit_p2p(priv))
 841                 return -1;
 842
 843         mode = P2P_MODE_DEVICE;
 844         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 845                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 846                 return -1;
 847
 848         mode = P2P_MODE_GO;
 849         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 850                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 851                 return -1;
 852
 853         return 0;
 854 }
 855
 856 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 857 {
 858         struct mwifiex_adapter *adapter = priv->adapter;
 859         unsigned long flags;
 860
 861         priv->mgmt_frame_mask = 0;
 862         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 863                              HostCmd_ACT_GEN_SET, 0,
 864                              &priv->mgmt_frame_mask, false)) {
 865                 mwifiex_dbg(adapter, ERROR,
 866                             "could not unregister mgmt frame rx\n");
 867                 return -1;
 868         }
 869
 870         mwifiex_deauthenticate(priv, NULL);
 871
 872         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 873         adapter->main_locked = true;
 874         if (adapter->mwifiex_processing) {
 875                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 876                 flush_workqueue(adapter->workqueue);
 877         } else {
 878                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 879         }
 880
 881         spin_lock_bh(&adapter->rx_proc_lock);
 882         adapter->rx_locked = true;
 883         if (adapter->rx_processing) {
 884                 spin_unlock_bh(&adapter->rx_proc_lock);
 885                 flush_workqueue(adapter->rx_workqueue);
 886         } else {
 887         spin_unlock_bh(&adapter->rx_proc_lock);
 888         }
 889
 890         mwifiex_free_priv(priv);
 891         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 892         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 893         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 894
 895         return 0;
 896 }
 897
 898 static int
 899 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 900                              struct net_device *dev,
 901                              enum nl80211_iftype type)
 902 {
 903         struct mwifiex_adapter *adapter = priv->adapter;
 904         unsigned long flags;
 905
 906         mwifiex_init_priv(priv);
 907
 908         priv->bss_mode = type;
 909         priv->wdev.iftype = type;
 910
 911         mwifiex_init_priv_params(priv, priv->netdev);
 912         priv->bss_started = 0;
 913
 914         switch (type) {
 915         case NL80211_IFTYPE_STATION:
 916         case NL80211_IFTYPE_ADHOC:
 917                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
 918                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 919                 break;
 920         case NL80211_IFTYPE_P2P_CLIENT:
 921                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
 922                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 923                 break;
 924         case NL80211_IFTYPE_P2P_GO:
 925                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 926                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 927                 break;
 928         case NL80211_IFTYPE_AP:
 929                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 930                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 931                 break;
 932         default:
 933                 mwifiex_dbg(adapter, ERROR,
 934                             "%s: changing to %d not supported\n",
 935                             dev->name, type);
 936                 return -EOPNOTSUPP;
 937         }
 938
 939         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 940         adapter->main_locked = false;
 941         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 942
 943         spin_lock_bh(&adapter->rx_proc_lock);
 944         adapter->rx_locked = false;
 945         spin_unlock_bh(&adapter->rx_proc_lock);
 946
 947         mwifiex_set_mac_address(priv, dev, false, NULL);
 948
 949         return 0;
 950 }
 951
 952 static bool
 953 is_vif_type_change_allowed(struct mwifiex_adapter *adapter,
 954                            enum nl80211_iftype old_iftype,
 955                            enum nl80211_iftype new_iftype)
 956 {
 957         switch (old_iftype) {
 958         case NL80211_IFTYPE_ADHOC:
 959                 switch (new_iftype) {
 960                 case NL80211_IFTYPE_STATION:
 961                         return true;
 962                 case NL80211_IFTYPE_P2P_CLIENT:
 963                 case NL80211_IFTYPE_P2P_GO:
 964                         return adapter->curr_iface_comb.p2p_intf !=
 965                                adapter->iface_limit.p2p_intf;
 966                 case NL80211_IFTYPE_AP:
 967                         return adapter->curr_iface_comb.uap_intf !=
 968                                adapter->iface_limit.uap_intf;
 969                 default:
 970                         return false;
 971                 }
 972
 973         case NL80211_IFTYPE_STATION:
 974                 switch (new_iftype) {
 975                 case NL80211_IFTYPE_ADHOC:
 976                         return true;
 977                 case NL80211_IFTYPE_P2P_CLIENT:
 978                 case NL80211_IFTYPE_P2P_GO:
 979                         return adapter->curr_iface_comb.p2p_intf !=
 980                                adapter->iface_limit.p2p_intf;
 981                 case NL80211_IFTYPE_AP:
 982                         return adapter->curr_iface_comb.uap_intf !=
 983                                adapter->iface_limit.uap_intf;
 984                 default:
 985                         return false;
 986                 }
 987
 988         case NL80211_IFTYPE_AP:
 989                 switch (new_iftype) {
 990                 case NL80211_IFTYPE_ADHOC:
 991                 case NL80211_IFTYPE_STATION:
 992                         return adapter->curr_iface_comb.sta_intf !=
 993                                adapter->iface_limit.sta_intf;
 994                 case NL80211_IFTYPE_P2P_CLIENT:
 995                 case NL80211_IFTYPE_P2P_GO:
 996                         return adapter->curr_iface_comb.p2p_intf !=
 997                                adapter->iface_limit.p2p_intf;
 998                 default:
 999                         return false;
1000                 }
1001
1002         case NL80211_IFTYPE_P2P_CLIENT:
1003                 switch (new_iftype) {
1004                 case NL80211_IFTYPE_ADHOC:
1005                 case NL80211_IFTYPE_STATION:
1006                         return true;
1007                 case NL80211_IFTYPE_P2P_GO:
1008                         return true;
1009                 case NL80211_IFTYPE_AP:
1010                         return adapter->curr_iface_comb.uap_intf !=
1011                                adapter->iface_limit.uap_intf;
1012                 default:
1013                         return false;
1014                 }
1015
1016         case NL80211_IFTYPE_P2P_GO:
1017                 switch (new_iftype) {
1018                 case NL80211_IFTYPE_ADHOC:
1019                 case NL80211_IFTYPE_STATION:
1020                         return true;
1021                 case NL80211_IFTYPE_P2P_CLIENT:
1022                         return true;
1023                 case NL80211_IFTYPE_AP:
1024                         return adapter->curr_iface_comb.uap_intf !=
1025                                adapter->iface_limit.uap_intf;
1026                 default:
1027                         return false;
1028                 }
1029
1030         default:
1031                 break;
1032         }
1033
1034         return false;
1035 }
1036
1037 static void
1038 update_vif_type_counter(struct mwifiex_adapter *adapter,
1039                         enum nl80211_iftype iftype,
1040                         int change)
1041 {
1042         switch (iftype) {
1043         case NL80211_IFTYPE_UNSPECIFIED:
1044         case NL80211_IFTYPE_ADHOC:
1045         case NL80211_IFTYPE_STATION:
1046                 adapter->curr_iface_comb.sta_intf += change;
1047                 break;
1048         case NL80211_IFTYPE_AP:
1049                 adapter->curr_iface_comb.uap_intf += change;
1050                 break;
1051         case NL80211_IFTYPE_P2P_CLIENT:
1052         case NL80211_IFTYPE_P2P_GO:
1053                 adapter->curr_iface_comb.p2p_intf += change;
1054                 break;
1055         default:
1056                 mwifiex_dbg(adapter, ERROR,
1057                             "%s: Unsupported iftype passed: %d\n",
1058                             __func__, iftype);
1059                 break;
1060         }
1061 }
1062
1063 static int
1064 mwifiex_change_vif_to_p2p(struct net_device *dev,
1065                           enum nl80211_iftype curr_iftype,
1066                           enum nl80211_iftype type,
1067                           struct vif_params *params)
1068 {
1069         struct mwifiex_private *priv;
1070         struct mwifiex_adapter *adapter;
1071
1072         priv = mwifiex_netdev_get_priv(dev);
1073
1074         if (!priv)
1075                 return -1;
1076
1077         adapter = priv->adapter;
1078
1079         mwifiex_dbg(adapter, INFO,
1080                     "%s: changing role to p2p\n", dev->name);
1081
1082         if (mwifiex_deinit_priv_params(priv))
1083                 return -1;
1084         if (mwifiex_init_new_priv_params(priv, dev, type))
1085                 return -1;
1086
1087         update_vif_type_counter(adapter, curr_iftype, -1);
1088         update_vif_type_counter(adapter, type, +1);
1089         dev->ieee80211_ptr->iftype = type;
1090
1091         switch (type) {
1092         case NL80211_IFTYPE_P2P_CLIENT:
1093                 if (mwifiex_cfg80211_init_p2p_client(priv))
1094                         return -EFAULT;
1095                 break;
1096         case NL80211_IFTYPE_P2P_GO:
1097                 if (mwifiex_cfg80211_init_p2p_go(priv))
1098                         return -EFAULT;
1099                 break;
1100         default:
1101                 mwifiex_dbg(adapter, ERROR,
1102                             "%s: changing to %d not supported\n",
1103                             dev->name, type);
1104                 return -EOPNOTSUPP;
1105         }
1106
1107         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1108                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1109                 return -1;
1110
1111         if (mwifiex_sta_init_cmd(priv, false, false))
1112                 return -1;
1113
1114         return 0;
1115 }
1116
1117 static int
1118 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1119                                 enum nl80211_iftype curr_iftype,
1120                                 enum nl80211_iftype type,
1121                                 struct vif_params *params)
1122 {
1123         struct mwifiex_private *priv;
1124         struct mwifiex_adapter *adapter;
1125
1126         priv = mwifiex_netdev_get_priv(dev);
1127
1128         if (!priv)
1129                 return -1;
1130
1131         adapter = priv->adapter;
1132
1133         if (type == NL80211_IFTYPE_STATION)
1134                 mwifiex_dbg(adapter, INFO,
1135                             "%s: changing role to station\n", dev->name);
1136         else
1137                 mwifiex_dbg(adapter, INFO,
1138                             "%s: changing role to adhoc\n", dev->name);
1139
1140         if (mwifiex_deinit_priv_params(priv))
1141                 return -1;
1142         if (mwifiex_init_new_priv_params(priv, dev, type))
1143                 return -1;
1144
1145         update_vif_type_counter(adapter, curr_iftype, -1);
1146         update_vif_type_counter(adapter, type, +1);
1147         dev->ieee80211_ptr->iftype = type;
1148
1149         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1150                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1151                 return -1;
1152         if (mwifiex_sta_init_cmd(priv, false, false))
1153                 return -1;
1154
1155         return 0;
1156 }
1157
1158 static int
1159 mwifiex_change_vif_to_ap(struct net_device *dev,
1160                          enum nl80211_iftype curr_iftype,
1161                          enum nl80211_iftype type,
1162                          struct vif_params *params)
1163 {
1164         struct mwifiex_private *priv;
1165         struct mwifiex_adapter *adapter;
1166
1167         priv = mwifiex_netdev_get_priv(dev);
1168
1169         if (!priv)
1170                 return -1;
1171
1172         adapter = priv->adapter;
1173
1174         mwifiex_dbg(adapter, INFO,
1175                     "%s: changing role to AP\n", dev->name);
1176
1177         if (mwifiex_deinit_priv_params(priv))
1178                 return -1;
1179         if (mwifiex_init_new_priv_params(priv, dev, type))
1180                 return -1;
1181
1182         update_vif_type_counter(adapter, curr_iftype, -1);
1183         update_vif_type_counter(adapter, type, +1);
1184         dev->ieee80211_ptr->iftype = type;
1185
1186         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1187                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1188                 return -1;
1189         if (mwifiex_sta_init_cmd(priv, false, false))
1190                 return -1;
1191
1192         return 0;
1193 }
1194 /*
1195  * CFG802.11 operation handler to change interface type.
1196  */
1197 static int
1198 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1199                                      struct net_device *dev,
1200                                      enum nl80211_iftype type,
1201                                      struct vif_params *params)
1202 {
1203         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1204         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1205
1206         if (priv->scan_request) {
1207                 mwifiex_dbg(priv->adapter, ERROR,
1208                             "change virtual interface: scan in process\n");
1209                 return -EBUSY;
1210         }
1211
1212         if (type == NL80211_IFTYPE_UNSPECIFIED) {
1213                 mwifiex_dbg(priv->adapter, INFO,
1214                             "%s: no new type specified, keeping old type %d\n",
1215                             dev->name, curr_iftype);
1216                 return 0;
1217         }
1218
1219         if (curr_iftype == type) {
1220                 mwifiex_dbg(priv->adapter, INFO,
1221                             "%s: interface already is of type %d\n",
1222                             dev->name, curr_iftype);
1223                 return 0;
1224         }
1225
1226         if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) {
1227                 mwifiex_dbg(priv->adapter, ERROR,
1228                             "%s: change from type %d to %d is not allowed\n",
1229                             dev->name, curr_iftype, type);
1230                 return -EOPNOTSUPP;
1231         }
1232
1233         switch (curr_iftype) {
1234         case NL80211_IFTYPE_ADHOC:
1235                 switch (type) {
1236                 case NL80211_IFTYPE_STATION:
1237                         priv->bss_mode = type;
1238                         priv->sec_info.authentication_mode =
1239                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1240                         dev->ieee80211_ptr->iftype = type;
1241                         mwifiex_deauthenticate(priv, NULL);
1242                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1243                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1244                                                 true);
1245                 case NL80211_IFTYPE_P2P_CLIENT:
1246                 case NL80211_IFTYPE_P2P_GO:
1247                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1248                                                          type, params);
1249                 case NL80211_IFTYPE_AP:
1250                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1251                                                         params);
1252                 default:
1253                         goto errnotsupp;
1254                 }
1255
1256         case NL80211_IFTYPE_STATION:
1257                 switch (type) {
1258                 case NL80211_IFTYPE_ADHOC:
1259                         priv->bss_mode = type;
1260                         priv->sec_info.authentication_mode =
1261                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1262                         dev->ieee80211_ptr->iftype = type;
1263                         mwifiex_deauthenticate(priv, NULL);
1264                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1265                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1266                                                 true);
1267                 case NL80211_IFTYPE_P2P_CLIENT:
1268                 case NL80211_IFTYPE_P2P_GO:
1269                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1270                                                          type, params);
1271                 case NL80211_IFTYPE_AP:
1272                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1273                                                         params);
1274                 default:
1275                         goto errnotsupp;
1276                 }
1277
1278         case NL80211_IFTYPE_AP:
1279                 switch (type) {
1280                 case NL80211_IFTYPE_ADHOC:
1281                 case NL80211_IFTYPE_STATION:
1282                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1283                                                                type, params);
1284                         break;
1285                 case NL80211_IFTYPE_P2P_CLIENT:
1286                 case NL80211_IFTYPE_P2P_GO:
1287                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1288                                                          type, params);
1289                 default:
1290                         goto errnotsupp;
1291                 }
1292
1293         case NL80211_IFTYPE_P2P_CLIENT:
1294                 if (mwifiex_cfg80211_deinit_p2p(priv))
1295                         return -EFAULT;
1296
1297                 switch (type) {
1298                 case NL80211_IFTYPE_ADHOC:
1299                 case NL80211_IFTYPE_STATION:
1300                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1301                                                                type, params);
1302                 case NL80211_IFTYPE_P2P_GO:
1303                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1304                                                          type, params);
1305                 case NL80211_IFTYPE_AP:
1306                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1307                                                         params);
1308                 default:
1309                         goto errnotsupp;
1310                 }
1311
1312         case NL80211_IFTYPE_P2P_GO:
1313                 if (mwifiex_cfg80211_deinit_p2p(priv))
1314                         return -EFAULT;
1315
1316                 switch (type) {
1317                 case NL80211_IFTYPE_ADHOC:
1318                 case NL80211_IFTYPE_STATION:
1319                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1320                                                                type, params);
1321                 case NL80211_IFTYPE_P2P_CLIENT:
1322                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1323                                                          type, params);
1324                 case NL80211_IFTYPE_AP:
1325                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1326                                                         params);
1327                 default:
1328                         goto errnotsupp;
1329                 }
1330
1331         default:
1332                 goto errnotsupp;
1333         }
1334
1335
1336         return 0;
1337
1338 errnotsupp:
1339         mwifiex_dbg(priv->adapter, ERROR,
1340                     "unsupported interface type transition: %d to %d\n",
1341                     curr_iftype, type);
1342         return -EOPNOTSUPP;
1343 }
1344
1345 static void
1346 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo,
1347                      struct rate_info *rate)
1348 {
1349         struct mwifiex_adapter *adapter = priv->adapter;
1350
1351         if (adapter->is_hw_11ac_capable) {
1352                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1353                 if (htinfo & BIT(0)) {
1354                         /* HT */
1355                         rate->mcs = rateinfo;
1356                         rate->flags |= RATE_INFO_FLAGS_MCS;
1357                 }
1358                 if (htinfo & BIT(1)) {
1359                         /* VHT */
1360                         rate->mcs = rateinfo & 0x0F;
1361                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1362                 }
1363
1364                 if (htinfo & (BIT(1) | BIT(0))) {
1365                         /* HT or VHT */
1366                         switch (htinfo & (BIT(3) | BIT(2))) {
1367                         case 0:
1368                                 rate->bw = RATE_INFO_BW_20;
1369                                 break;
1370                         case (BIT(2)):
1371                                 rate->bw = RATE_INFO_BW_40;
1372                                 break;
1373                         case (BIT(3)):
1374                                 rate->bw = RATE_INFO_BW_80;
1375                                 break;
1376                         case (BIT(3) | BIT(2)):
1377                                 rate->bw = RATE_INFO_BW_160;
1378                                 break;
1379                         }
1380
1381                         if (htinfo & BIT(4))
1382                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1383
1384                         if ((rateinfo >> 4) == 1)
1385                                 rate->nss = 2;
1386                         else
1387                                 rate->nss = 1;
1388                 }
1389         } else {
1390                 /*
1391                  * Bit 0 in htinfo indicates that current rate is 11n. Valid
1392                  * MCS index values for us are 0 to 15.
1393                  */
1394                 if ((htinfo & BIT(0)) && (rateinfo < 16)) {
1395                         rate->mcs = rateinfo;
1396                         rate->flags |= RATE_INFO_FLAGS_MCS;
1397                         rate->bw = RATE_INFO_BW_20;
1398                         if (htinfo & BIT(1))
1399                                 rate->bw = RATE_INFO_BW_40;
1400                         if (htinfo & BIT(2))
1401                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1402                 }
1403         }
1404
1405         /* Decode legacy rates for non-HT. */
1406         if (!(htinfo & (BIT(0) | BIT(1)))) {
1407                 /* Bitrates in multiples of 100kb/s. */
1408                 static const int legacy_rates[] = {
1409                         [0] = 10,
1410                         [1] = 20,
1411                         [2] = 55,
1412                         [3] = 110,
1413                         [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */
1414                         [5] = 60,
1415                         [6] = 90,
1416                         [7] = 120,
1417                         [8] = 180,
1418                         [9] = 240,
1419                         [10] = 360,
1420                         [11] = 480,
1421                         [12] = 540,
1422                 };
1423                 if (rateinfo < ARRAY_SIZE(legacy_rates))
1424                         rate->legacy = legacy_rates[rateinfo];
1425         }
1426 }
1427
1428 /*
1429  * This function dumps the station information on a buffer.
1430  *
1431  * The following information are shown -
1432  *      - Total bytes transmitted
1433  *      - Total bytes received
1434  *      - Total packets transmitted
1435  *      - Total packets received
1436  *      - Signal quality level
1437  *      - Transmission rate
1438  */
1439 static int
1440 mwifiex_dump_station_info(struct mwifiex_private *priv,
1441                           struct mwifiex_sta_node *node,
1442                           struct station_info *sinfo)
1443 {
1444         u32 rate;
1445
1446         sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1447                         BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1448                         BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1449                         BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1450
1451         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1452                 if (!node)
1453                         return -ENOENT;
1454
1455                 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1456                                 BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1457                 sinfo->inactive_time =
1458                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1459
1460                 sinfo->signal = node->stats.rssi;
1461                 sinfo->signal_avg = node->stats.rssi;
1462                 sinfo->rx_bytes = node->stats.rx_bytes;
1463                 sinfo->tx_bytes = node->stats.tx_bytes;
1464                 sinfo->rx_packets = node->stats.rx_packets;
1465                 sinfo->tx_packets = node->stats.tx_packets;
1466                 sinfo->tx_failed = node->stats.tx_failed;
1467
1468                 mwifiex_parse_htinfo(priv, priv->tx_rate,
1469                                      node->stats.last_tx_htinfo,
1470                                      &sinfo->txrate);
1471                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1472
1473                 return 0;
1474         }
1475
1476         /* Get signal information from the firmware */
1477         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1478                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1479                 mwifiex_dbg(priv->adapter, ERROR,
1480                             "failed to get signal information\n");
1481                 return -EFAULT;
1482         }
1483
1484         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1485                 mwifiex_dbg(priv->adapter, ERROR,
1486                             "getting data rate error\n");
1487                 return -EFAULT;
1488         }
1489
1490         /* Get DTIM period information from firmware */
1491         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1492                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1493                          &priv->dtim_period, true);
1494
1495         mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo,
1496                              &sinfo->txrate);
1497
1498         sinfo->signal_avg = priv->bcn_rssi_avg;
1499         sinfo->rx_bytes = priv->stats.rx_bytes;
1500         sinfo->tx_bytes = priv->stats.tx_bytes;
1501         sinfo->rx_packets = priv->stats.rx_packets;
1502         sinfo->tx_packets = priv->stats.tx_packets;
1503         sinfo->signal = priv->bcn_rssi_avg;
1504         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1505         sinfo->txrate.legacy = rate * 5;
1506
1507         sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
1508         mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo,
1509                              &sinfo->rxrate);
1510
1511         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1512                 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1513                 sinfo->bss_param.flags = 0;
1514                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1515                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1516                         sinfo->bss_param.flags |=
1517                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1518                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1519                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1520                         sinfo->bss_param.flags |=
1521                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1522                 sinfo->bss_param.dtim_period = priv->dtim_period;
1523                 sinfo->bss_param.beacon_interval =
1524                         priv->curr_bss_params.bss_descriptor.beacon_period;
1525         }
1526
1527         return 0;
1528 }
1529
1530 /*
1531  * CFG802.11 operation handler to get station information.
1532  *
1533  * This function only works in connected mode, and dumps the
1534  * requested station information, if available.
1535  */
1536 static int
1537 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1538                              const u8 *mac, struct station_info *sinfo)
1539 {
1540         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1541
1542         if (!priv->media_connected)
1543                 return -ENOENT;
1544         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1545                 return -ENOENT;
1546
1547         return mwifiex_dump_station_info(priv, NULL, sinfo);
1548 }
1549
1550 /*
1551  * CFG802.11 operation handler to dump station information.
1552  */
1553 static int
1554 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1555                               int idx, u8 *mac, struct station_info *sinfo)
1556 {
1557         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1558         struct mwifiex_sta_node *node;
1559         int i;
1560
1561         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1562             priv->media_connected && idx == 0) {
1563                 ether_addr_copy(mac, priv->cfg_bssid);
1564                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1565         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1566                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1567                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1568
1569                 i = 0;
1570                 list_for_each_entry(node, &priv->sta_list, list) {
1571                         if (i++ != idx)
1572                                 continue;
1573                         ether_addr_copy(mac, node->mac_addr);
1574                         return mwifiex_dump_station_info(priv, node, sinfo);
1575                 }
1576         }
1577
1578         return -ENOENT;
1579 }
1580
1581 static int
1582 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1583                              int idx, struct survey_info *survey)
1584 {
1585         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1586         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1587         enum nl80211_band band;
1588
1589         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1590
1591         memset(survey, 0, sizeof(struct survey_info));
1592
1593         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1594             priv->media_connected && idx == 0) {
1595                         u8 curr_bss_band = priv->curr_bss_params.band;
1596                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1597
1598                         band = mwifiex_band_to_radio_type(curr_bss_band);
1599                         survey->channel = ieee80211_get_channel(wiphy,
1600                                 ieee80211_channel_to_frequency(chan, band));
1601
1602                         if (priv->bcn_nf_last) {
1603                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1604                                 survey->noise = priv->bcn_nf_last;
1605                         }
1606                         return 0;
1607         }
1608
1609         if (idx >= priv->adapter->num_in_chan_stats)
1610                 return -ENOENT;
1611
1612         if (!pchan_stats[idx].cca_scan_dur)
1613                 return 0;
1614
1615         band = pchan_stats[idx].bandcfg;
1616         survey->channel = ieee80211_get_channel(wiphy,
1617             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1618         survey->filled = SURVEY_INFO_NOISE_DBM |
1619                          SURVEY_INFO_TIME |
1620                          SURVEY_INFO_TIME_BUSY;
1621         survey->noise = pchan_stats[idx].noise;
1622         survey->time = pchan_stats[idx].cca_scan_dur;
1623         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1624
1625         return 0;
1626 }
1627
1628 /* Supported rates to be advertised to the cfg80211 */
1629 static struct ieee80211_rate mwifiex_rates[] = {
1630         {.bitrate = 10, .hw_value = 2, },
1631         {.bitrate = 20, .hw_value = 4, },
1632         {.bitrate = 55, .hw_value = 11, },
1633         {.bitrate = 110, .hw_value = 22, },
1634         {.bitrate = 60, .hw_value = 12, },
1635         {.bitrate = 90, .hw_value = 18, },
1636         {.bitrate = 120, .hw_value = 24, },
1637         {.bitrate = 180, .hw_value = 36, },
1638         {.bitrate = 240, .hw_value = 48, },
1639         {.bitrate = 360, .hw_value = 72, },
1640         {.bitrate = 480, .hw_value = 96, },
1641         {.bitrate = 540, .hw_value = 108, },
1642 };
1643
1644 /* Channel definitions to be advertised to cfg80211 */
1645 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1646         {.center_freq = 2412, .hw_value = 1, },
1647         {.center_freq = 2417, .hw_value = 2, },
1648         {.center_freq = 2422, .hw_value = 3, },
1649         {.center_freq = 2427, .hw_value = 4, },
1650         {.center_freq = 2432, .hw_value = 5, },
1651         {.center_freq = 2437, .hw_value = 6, },
1652         {.center_freq = 2442, .hw_value = 7, },
1653         {.center_freq = 2447, .hw_value = 8, },
1654         {.center_freq = 2452, .hw_value = 9, },
1655         {.center_freq = 2457, .hw_value = 10, },
1656         {.center_freq = 2462, .hw_value = 11, },
1657         {.center_freq = 2467, .hw_value = 12, },
1658         {.center_freq = 2472, .hw_value = 13, },
1659         {.center_freq = 2484, .hw_value = 14, },
1660 };
1661
1662 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1663         .channels = mwifiex_channels_2ghz,
1664         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1665         .bitrates = mwifiex_rates,
1666         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1667 };
1668
1669 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1670         {.center_freq = 5040, .hw_value = 8, },
1671         {.center_freq = 5060, .hw_value = 12, },
1672         {.center_freq = 5080, .hw_value = 16, },
1673         {.center_freq = 5170, .hw_value = 34, },
1674         {.center_freq = 5190, .hw_value = 38, },
1675         {.center_freq = 5210, .hw_value = 42, },
1676         {.center_freq = 5230, .hw_value = 46, },
1677         {.center_freq = 5180, .hw_value = 36, },
1678         {.center_freq = 5200, .hw_value = 40, },
1679         {.center_freq = 5220, .hw_value = 44, },
1680         {.center_freq = 5240, .hw_value = 48, },
1681         {.center_freq = 5260, .hw_value = 52, },
1682         {.center_freq = 5280, .hw_value = 56, },
1683         {.center_freq = 5300, .hw_value = 60, },
1684         {.center_freq = 5320, .hw_value = 64, },
1685         {.center_freq = 5500, .hw_value = 100, },
1686         {.center_freq = 5520, .hw_value = 104, },
1687         {.center_freq = 5540, .hw_value = 108, },
1688         {.center_freq = 5560, .hw_value = 112, },
1689         {.center_freq = 5580, .hw_value = 116, },
1690         {.center_freq = 5600, .hw_value = 120, },
1691         {.center_freq = 5620, .hw_value = 124, },
1692         {.center_freq = 5640, .hw_value = 128, },
1693         {.center_freq = 5660, .hw_value = 132, },
1694         {.center_freq = 5680, .hw_value = 136, },
1695         {.center_freq = 5700, .hw_value = 140, },
1696         {.center_freq = 5745, .hw_value = 149, },
1697         {.center_freq = 5765, .hw_value = 153, },
1698         {.center_freq = 5785, .hw_value = 157, },
1699         {.center_freq = 5805, .hw_value = 161, },
1700         {.center_freq = 5825, .hw_value = 165, },
1701 };
1702
1703 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1704         .channels = mwifiex_channels_5ghz,
1705         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1706         .bitrates = mwifiex_rates + 4,
1707         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1708 };
1709
1710
1711 /* Supported crypto cipher suits to be advertised to cfg80211 */
1712 static const u32 mwifiex_cipher_suites[] = {
1713         WLAN_CIPHER_SUITE_WEP40,
1714         WLAN_CIPHER_SUITE_WEP104,
1715         WLAN_CIPHER_SUITE_TKIP,
1716         WLAN_CIPHER_SUITE_CCMP,
1717         WLAN_CIPHER_SUITE_SMS4,
1718         WLAN_CIPHER_SUITE_AES_CMAC,
1719 };
1720
1721 /* Supported mgmt frame types to be advertised to cfg80211 */
1722 static const struct ieee80211_txrx_stypes
1723 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1724         [NL80211_IFTYPE_STATION] = {
1725                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1726                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1727                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1728                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1729         },
1730         [NL80211_IFTYPE_AP] = {
1731                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1732                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1733                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1734                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1735         },
1736         [NL80211_IFTYPE_P2P_CLIENT] = {
1737                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1738                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1739                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1740                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1741         },
1742         [NL80211_IFTYPE_P2P_GO] = {
1743                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1744                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1745                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1746                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1747         },
1748 };
1749
1750 /*
1751  * CFG802.11 operation handler for setting bit rates.
1752  *
1753  * Function configures data rates to firmware using bitrate mask
1754  * provided by cfg80211.
1755  */
1756 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1757                                 struct net_device *dev,
1758                                 const u8 *peer,
1759                                 const struct cfg80211_bitrate_mask *mask)
1760 {
1761         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1762         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1763         enum nl80211_band band;
1764         struct mwifiex_adapter *adapter = priv->adapter;
1765
1766         if (!priv->media_connected) {
1767                 mwifiex_dbg(adapter, ERROR,
1768                             "Can not set Tx data rate in disconnected state\n");
1769                 return -EINVAL;
1770         }
1771
1772         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1773
1774         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1775
1776         /* Fill HR/DSSS rates. */
1777         if (band == NL80211_BAND_2GHZ)
1778                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1779
1780         /* Fill OFDM rates */
1781         if (band == NL80211_BAND_2GHZ)
1782                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1783         else
1784                 bitmap_rates[1] = mask->control[band].legacy;
1785
1786         /* Fill HT MCS rates */
1787         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1788         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1789                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1790
1791        /* Fill VHT MCS rates */
1792         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1793                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1794                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1795                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1796         }
1797
1798         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1799                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1800 }
1801
1802 /*
1803  * CFG802.11 operation handler for connection quality monitoring.
1804  *
1805  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1806  * events to FW.
1807  */
1808 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1809                                                 struct net_device *dev,
1810                                                 s32 rssi_thold, u32 rssi_hyst)
1811 {
1812         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1813         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1814
1815         priv->cqm_rssi_thold = rssi_thold;
1816         priv->cqm_rssi_hyst = rssi_hyst;
1817
1818         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1819         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1820
1821         /* Subscribe/unsubscribe low and high rssi events */
1822         if (rssi_thold && rssi_hyst) {
1823                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1824                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1825                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1826                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1827                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1828                 return mwifiex_send_cmd(priv,
1829                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1830                                         0, 0, &subsc_evt, true);
1831         } else {
1832                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1833                 return mwifiex_send_cmd(priv,
1834                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1835                                         0, 0, &subsc_evt, true);
1836         }
1837
1838         return 0;
1839 }
1840
1841 /* cfg80211 operation handler for change_beacon.
1842  * Function retrieves and sets modified management IEs to FW.
1843  */
1844 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1845                                           struct net_device *dev,
1846                                           struct cfg80211_beacon_data *data)
1847 {
1848         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1849         struct mwifiex_adapter *adapter = priv->adapter;
1850
1851         mwifiex_cancel_scan(adapter);
1852
1853         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1854                 mwifiex_dbg(priv->adapter, ERROR,
1855                             "%s: bss_type mismatched\n", __func__);
1856                 return -EINVAL;
1857         }
1858
1859         if (!priv->bss_started) {
1860                 mwifiex_dbg(priv->adapter, ERROR,
1861                             "%s: bss not started\n", __func__);
1862                 return -EINVAL;
1863         }
1864
1865         if (mwifiex_set_mgmt_ies(priv, data)) {
1866                 mwifiex_dbg(priv->adapter, ERROR,
1867                             "%s: setting mgmt ies failed\n", __func__);
1868                 return -EFAULT;
1869         }
1870
1871         return 0;
1872 }
1873
1874 /* cfg80211 operation handler for del_station.
1875  * Function deauthenticates station which value is provided in mac parameter.
1876  * If mac is NULL/broadcast, all stations in associated station list are
1877  * deauthenticated. If bss is not started or there are no stations in
1878  * associated stations list, no action is taken.
1879  */
1880 static int
1881 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1882                              struct station_del_parameters *params)
1883 {
1884         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1885         struct mwifiex_sta_node *sta_node;
1886         u8 deauth_mac[ETH_ALEN];
1887
1888         if (!priv->bss_started && priv->wdev.cac_started) {
1889                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1890                 mwifiex_abort_cac(priv);
1891         }
1892
1893         if (list_empty(&priv->sta_list) || !priv->bss_started)
1894                 return 0;
1895
1896         if (!params->mac || is_broadcast_ether_addr(params->mac))
1897                 return 0;
1898
1899         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1900                     __func__, params->mac);
1901
1902         eth_zero_addr(deauth_mac);
1903
1904         spin_lock_bh(&priv->sta_list_spinlock);
1905         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1906         if (sta_node)
1907                 ether_addr_copy(deauth_mac, params->mac);
1908         spin_unlock_bh(&priv->sta_list_spinlock);
1909
1910         if (is_valid_ether_addr(deauth_mac)) {
1911                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1912                                      HostCmd_ACT_GEN_SET, 0,
1913                                      deauth_mac, true))
1914                         return -1;
1915         }
1916
1917         return 0;
1918 }
1919
1920 static int
1921 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1922 {
1923         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1924         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1925                                                         MWIFIEX_BSS_ROLE_ANY);
1926         struct mwifiex_ds_ant_cfg ant_cfg;
1927
1928         if (!tx_ant || !rx_ant)
1929                 return -EOPNOTSUPP;
1930
1931         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1932                 /* Not a MIMO chip. User should provide specific antenna number
1933                  * for Tx/Rx path or enable all antennas for diversity
1934                  */
1935                 if (tx_ant != rx_ant)
1936                         return -EOPNOTSUPP;
1937
1938                 if ((tx_ant & (tx_ant - 1)) &&
1939                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1940                         return -EOPNOTSUPP;
1941
1942                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1943                     (priv->adapter->number_of_antenna > 1)) {
1944                         tx_ant = RF_ANTENNA_AUTO;
1945                         rx_ant = RF_ANTENNA_AUTO;
1946                 }
1947         } else {
1948                 struct ieee80211_sta_ht_cap *ht_info;
1949                 int rx_mcs_supp;
1950                 enum nl80211_band band;
1951
1952                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1953                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1954                         if (adapter->is_hw_11ac_capable)
1955                                 adapter->usr_dot_11ac_mcs_support =
1956                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1957                 } else {
1958                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1959                         if (adapter->is_hw_11ac_capable)
1960                                 adapter->usr_dot_11ac_mcs_support =
1961                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1962                 }
1963
1964                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1965                         if (!adapter->wiphy->bands[band])
1966                                 continue;
1967
1968                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1969                         rx_mcs_supp =
1970                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1971                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1972                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1973                 }
1974         }
1975
1976         ant_cfg.tx_ant = tx_ant;
1977         ant_cfg.rx_ant = rx_ant;
1978
1979         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1980                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1981 }
1982
1983 static int
1984 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1985 {
1986         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1987         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1988                                                         MWIFIEX_BSS_ROLE_ANY);
1989         mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1990                          HostCmd_ACT_GEN_GET, 0, NULL, true);
1991
1992         *tx_ant = priv->tx_ant;
1993         *rx_ant = priv->rx_ant;
1994
1995         return 0;
1996 }
1997
1998 /* cfg80211 operation handler for stop ap.
1999  * Function stops BSS running at uAP interface.
2000  */
2001 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
2002 {
2003         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2004
2005         mwifiex_abort_cac(priv);
2006
2007         if (mwifiex_del_mgmt_ies(priv))
2008                 mwifiex_dbg(priv->adapter, ERROR,
2009                             "Failed to delete mgmt IEs!\n");
2010
2011         priv->ap_11n_enabled = 0;
2012         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
2013
2014         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
2015                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2016                 mwifiex_dbg(priv->adapter, ERROR,
2017                             "Failed to stop the BSS\n");
2018                 return -1;
2019         }
2020
2021         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
2022                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2023                 mwifiex_dbg(priv->adapter, ERROR,
2024                             "Failed to reset BSS\n");
2025                 return -1;
2026         }
2027
2028         if (netif_carrier_ok(priv->netdev))
2029                 netif_carrier_off(priv->netdev);
2030         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2031
2032         return 0;
2033 }
2034
2035 /* cfg80211 operation handler for start_ap.
2036  * Function sets beacon period, DTIM period, SSID and security into
2037  * AP config structure.
2038  * AP is configured with these settings and BSS is started.
2039  */
2040 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
2041                                      struct net_device *dev,
2042                                      struct cfg80211_ap_settings *params)
2043 {
2044         struct mwifiex_uap_bss_param *bss_cfg;
2045         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2046
2047         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
2048                 return -1;
2049
2050         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
2051         if (!bss_cfg)
2052                 return -ENOMEM;
2053
2054         mwifiex_set_sys_config_invalid_data(bss_cfg);
2055
2056         if (params->beacon_interval)
2057                 bss_cfg->beacon_period = params->beacon_interval;
2058         if (params->dtim_period)
2059                 bss_cfg->dtim_period = params->dtim_period;
2060
2061         if (params->ssid && params->ssid_len) {
2062                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2063                 bss_cfg->ssid.ssid_len = params->ssid_len;
2064         }
2065         if (params->inactivity_timeout > 0) {
2066                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2067                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2068                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2069         }
2070
2071         switch (params->hidden_ssid) {
2072         case NL80211_HIDDEN_SSID_NOT_IN_USE:
2073                 bss_cfg->bcast_ssid_ctl = 1;
2074                 break;
2075         case NL80211_HIDDEN_SSID_ZERO_LEN:
2076                 bss_cfg->bcast_ssid_ctl = 0;
2077                 break;
2078         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2079                 bss_cfg->bcast_ssid_ctl = 2;
2080                 break;
2081         default:
2082                 kfree(bss_cfg);
2083                 return -EINVAL;
2084         }
2085
2086         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2087         mwifiex_set_uap_rates(bss_cfg, params);
2088
2089         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2090                 mwifiex_dbg(priv->adapter, ERROR,
2091                             "Failed to parse security parameters!\n");
2092                 goto out;
2093         }
2094
2095         mwifiex_set_ht_params(priv, bss_cfg, params);
2096
2097         if (priv->adapter->is_hw_11ac_capable) {
2098                 mwifiex_set_vht_params(priv, bss_cfg, params);
2099                 mwifiex_set_vht_width(priv, params->chandef.width,
2100                                       priv->ap_11ac_enabled);
2101         }
2102
2103         if (priv->ap_11ac_enabled)
2104                 mwifiex_set_11ac_ba_params(priv);
2105         else
2106                 mwifiex_set_ba_params(priv);
2107
2108         mwifiex_set_wmm_params(priv, bss_cfg, params);
2109
2110         if (mwifiex_is_11h_active(priv))
2111                 mwifiex_set_tpc_params(priv, bss_cfg, params);
2112
2113         if (mwifiex_is_11h_active(priv) &&
2114             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2115                                            priv->bss_mode)) {
2116                 mwifiex_dbg(priv->adapter, INFO,
2117                             "Disable 11h extensions in FW\n");
2118                 if (mwifiex_11h_activate(priv, false)) {
2119                         mwifiex_dbg(priv->adapter, ERROR,
2120                                     "Failed to disable 11h extensions!!");
2121                         goto out;
2122                 }
2123                 priv->state_11h.is_11h_active = false;
2124         }
2125
2126         mwifiex_config_uap_11d(priv, &params->beacon);
2127
2128         if (mwifiex_config_start_uap(priv, bss_cfg)) {
2129                 mwifiex_dbg(priv->adapter, ERROR,
2130                             "Failed to start AP\n");
2131                 goto out;
2132         }
2133
2134         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2135                 goto out;
2136
2137         if (!netif_carrier_ok(priv->netdev))
2138                 netif_carrier_on(priv->netdev);
2139         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2140
2141         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2142         kfree(bss_cfg);
2143         return 0;
2144
2145 out:
2146         kfree(bss_cfg);
2147         return -1;
2148 }
2149
2150 /*
2151  * CFG802.11 operation handler for disconnection request.
2152  *
2153  * This function does not work when there is already a disconnection
2154  * procedure going on.
2155  */
2156 static int
2157 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2158                             u16 reason_code)
2159 {
2160         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2161
2162         if (!mwifiex_stop_bg_scan(priv))
2163                 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2164
2165         if (mwifiex_deauthenticate(priv, NULL))
2166                 return -EFAULT;
2167
2168         eth_zero_addr(priv->cfg_bssid);
2169         priv->hs2_enabled = false;
2170
2171         return 0;
2172 }
2173
2174 /*
2175  * This function informs the CFG802.11 subsystem of a new IBSS.
2176  *
2177  * The following information are sent to the CFG802.11 subsystem
2178  * to register the new IBSS. If we do not register the new IBSS,
2179  * a kernel panic will result.
2180  *      - SSID
2181  *      - SSID length
2182  *      - BSSID
2183  *      - Channel
2184  */
2185 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2186 {
2187         struct ieee80211_channel *chan;
2188         struct mwifiex_bss_info bss_info;
2189         struct cfg80211_bss *bss;
2190         int ie_len;
2191         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2192         enum nl80211_band band;
2193
2194         if (mwifiex_get_bss_info(priv, &bss_info))
2195                 return -1;
2196
2197         ie_buf[0] = WLAN_EID_SSID;
2198         ie_buf[1] = bss_info.ssid.ssid_len;
2199
2200         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2201                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2202         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2203
2204         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2205         chan = ieee80211_get_channel(priv->wdev.wiphy,
2206                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2207                                                        band));
2208
2209         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2210                                   CFG80211_BSS_FTYPE_UNKNOWN,
2211                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2212                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2213         if (bss) {
2214                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2215                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2216         }
2217
2218         return 0;
2219 }
2220
2221 /*
2222  * This function connects with a BSS.
2223  *
2224  * This function handles both Infra and Ad-Hoc modes. It also performs
2225  * validity checking on the provided parameters, disconnects from the
2226  * current BSS (if any), sets up the association/scan parameters,
2227  * including security settings, and performs specific SSID scan before
2228  * trying to connect.
2229  *
2230  * For Infra mode, the function returns failure if the specified SSID
2231  * is not found in scan table. However, for Ad-Hoc mode, it can create
2232  * the IBSS if it does not exist. On successful completion in either case,
2233  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2234  */
2235 static int
2236 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2237                        const u8 *ssid, const u8 *bssid, int mode,
2238                        struct ieee80211_channel *channel,
2239                        struct cfg80211_connect_params *sme, bool privacy,
2240                        struct cfg80211_bss **sel_bss)
2241 {
2242         struct cfg80211_ssid req_ssid;
2243         int ret, auth_type = 0;
2244         struct cfg80211_bss *bss = NULL;
2245         u8 is_scanning_required = 0;
2246
2247         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2248
2249         req_ssid.ssid_len = ssid_len;
2250         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2251                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2252                 return -EINVAL;
2253         }
2254
2255         memcpy(req_ssid.ssid, ssid, ssid_len);
2256         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2257                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2258                 return -EINVAL;
2259         }
2260
2261         /* As this is new association, clear locally stored
2262          * keys and security related flags */
2263         priv->sec_info.wpa_enabled = false;
2264         priv->sec_info.wpa2_enabled = false;
2265         priv->wep_key_curr_index = 0;
2266         priv->sec_info.encryption_mode = 0;
2267         priv->sec_info.is_authtype_auto = 0;
2268         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2269
2270         if (mode == NL80211_IFTYPE_ADHOC) {
2271                 u16 enable = true;
2272
2273                 /* set ibss coalescing_status */
2274                 ret = mwifiex_send_cmd(
2275                                 priv,
2276                                 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2277                                 HostCmd_ACT_GEN_SET, 0, &enable, true);
2278                 if (ret)
2279                         return ret;
2280
2281                 /* "privacy" is set only for ad-hoc mode */
2282                 if (privacy) {
2283                         /*
2284                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2285                          * the firmware can find a matching network from the
2286                          * scan. The cfg80211 does not give us the encryption
2287                          * mode at this stage so just setting it to WEP here.
2288                          */
2289                         priv->sec_info.encryption_mode =
2290                                         WLAN_CIPHER_SUITE_WEP104;
2291                         priv->sec_info.authentication_mode =
2292                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2293                 }
2294
2295                 goto done;
2296         }
2297
2298         /* Now handle infra mode. "sme" is valid for infra mode only */
2299         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2300                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2301                 priv->sec_info.is_authtype_auto = 1;
2302         } else {
2303                 auth_type = sme->auth_type;
2304         }
2305
2306         if (sme->crypto.n_ciphers_pairwise) {
2307                 priv->sec_info.encryption_mode =
2308                                                 sme->crypto.ciphers_pairwise[0];
2309                 priv->sec_info.authentication_mode = auth_type;
2310         }
2311
2312         if (sme->crypto.cipher_group) {
2313                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2314                 priv->sec_info.authentication_mode = auth_type;
2315         }
2316         if (sme->ie)
2317                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2318
2319         if (sme->key) {
2320                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2321                         mwifiex_dbg(priv->adapter, INFO,
2322                                     "info: setting wep encryption\t"
2323                                     "with key len %d\n", sme->key_len);
2324                         priv->wep_key_curr_index = sme->key_idx;
2325                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2326                                                  sme->key_len, sme->key_idx,
2327                                                  NULL, 0);
2328                 }
2329         }
2330 done:
2331         /*
2332          * Scan entries are valid for some time (15 sec). So we can save one
2333          * active scan time if we just try cfg80211_get_bss first. If it fails
2334          * then request scan and cfg80211_get_bss() again for final output.
2335          */
2336         while (1) {
2337                 if (is_scanning_required) {
2338                         /* Do specific SSID scanning */
2339                         if (mwifiex_request_scan(priv, &req_ssid)) {
2340                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2341                                 return -EFAULT;
2342                         }
2343                 }
2344
2345                 /* Find the BSS we want using available scan results */
2346                 if (mode == NL80211_IFTYPE_ADHOC)
2347                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2348                                                bssid, ssid, ssid_len,
2349                                                IEEE80211_BSS_TYPE_IBSS,
2350                                                IEEE80211_PRIVACY_ANY);
2351                 else
2352                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2353                                                bssid, ssid, ssid_len,
2354                                                IEEE80211_BSS_TYPE_ESS,
2355                                                IEEE80211_PRIVACY_ANY);
2356
2357                 if (!bss) {
2358                         if (is_scanning_required) {
2359                                 mwifiex_dbg(priv->adapter, MSG,
2360                                             "assoc: requested bss not found in scan results\n");
2361                                 break;
2362                         }
2363                         is_scanning_required = 1;
2364                 } else {
2365                         mwifiex_dbg(priv->adapter, MSG,
2366                                     "info: trying to associate to bssid %pM\n",
2367                                     bss->bssid);
2368                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2369                         break;
2370                 }
2371         }
2372
2373         if (bss)
2374                 cfg80211_ref_bss(priv->adapter->wiphy, bss);
2375
2376         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2377         if (ret)
2378                 goto cleanup;
2379
2380         if (mode == NL80211_IFTYPE_ADHOC) {
2381                 /* Inform the BSS information to kernel, otherwise
2382                  * kernel will give a panic after successful assoc */
2383                 if (mwifiex_cfg80211_inform_ibss_bss(priv)) {
2384                         ret = -EFAULT;
2385                         goto cleanup;
2386                 }
2387         }
2388
2389         /* Pass the selected BSS entry to caller. */
2390         if (sel_bss) {
2391                 *sel_bss = bss;
2392                 bss = NULL;
2393         }
2394
2395 cleanup:
2396         if (bss)
2397                 cfg80211_put_bss(priv->adapter->wiphy, bss);
2398         return ret;
2399 }
2400
2401 /*
2402  * CFG802.11 operation handler for association request.
2403  *
2404  * This function does not work when the current mode is set to Ad-Hoc, or
2405  * when there is already an association procedure going on. The given BSS
2406  * information is used to associate.
2407  */
2408 static int
2409 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2410                          struct cfg80211_connect_params *sme)
2411 {
2412         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2413         struct mwifiex_adapter *adapter = priv->adapter;
2414         struct cfg80211_bss *bss = NULL;
2415         int ret;
2416
2417         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2418                 mwifiex_dbg(adapter, ERROR,
2419                             "%s: reject infra assoc request in non-STA role\n",
2420                             dev->name);
2421                 return -EINVAL;
2422         }
2423
2424         if (priv->wdev.current_bss) {
2425                 mwifiex_dbg(adapter, ERROR,
2426                             "%s: already connected\n", dev->name);
2427                 return -EALREADY;
2428         }
2429
2430         if (priv->scan_block)
2431                 priv->scan_block = false;
2432
2433         if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2434             test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2435                 mwifiex_dbg(adapter, ERROR,
2436                             "%s: Ignore connection.\t"
2437                             "Card removed or FW in bad state\n",
2438                             dev->name);
2439                 return -EFAULT;
2440         }
2441
2442         mwifiex_dbg(adapter, INFO,
2443                     "info: Trying to associate to bssid %pM\n", sme->bssid);
2444
2445         if (!mwifiex_stop_bg_scan(priv))
2446                 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2447
2448         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2449                                      priv->bss_mode, sme->channel, sme, 0,
2450                                      &bss);
2451         if (!ret) {
2452                 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL,
2453                                      0, NULL, 0, WLAN_STATUS_SUCCESS,
2454                                      GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED);
2455                 mwifiex_dbg(priv->adapter, MSG,
2456                             "info: associated to bssid %pM successfully\n",
2457                             priv->cfg_bssid);
2458                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2459                     priv->adapter->auto_tdls &&
2460                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2461                         mwifiex_setup_auto_tdls_timer(priv);
2462         } else {
2463                 mwifiex_dbg(priv->adapter, ERROR,
2464                             "info: association to bssid %pM failed\n",
2465                             priv->cfg_bssid);
2466                 eth_zero_addr(priv->cfg_bssid);
2467
2468                 if (ret > 0)
2469                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2470                                                 NULL, 0, NULL, 0, ret,
2471                                                 GFP_KERNEL);
2472                 else
2473                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2474                                                 NULL, 0, NULL, 0,
2475                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2476                                                 GFP_KERNEL);
2477         }
2478
2479         return 0;
2480 }
2481
2482 /*
2483  * This function sets following parameters for ibss network.
2484  *  -  channel
2485  *  -  start band
2486  *  -  11n flag
2487  *  -  secondary channel offset
2488  */
2489 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2490                                    struct cfg80211_ibss_params *params)
2491 {
2492         struct mwifiex_adapter *adapter = priv->adapter;
2493         int index = 0, i;
2494         u8 config_bands = 0;
2495
2496         if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2497                 if (!params->basic_rates) {
2498                         config_bands = BAND_B | BAND_G;
2499                 } else {
2500                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2501                                 /*
2502                                  * Rates below 6 Mbps in the table are CCK
2503                                  * rates; 802.11b and from 6 they are OFDM;
2504                                  * 802.11G
2505                                  */
2506                                 if (mwifiex_rates[i].bitrate == 60) {
2507                                         index = 1 << i;
2508                                         break;
2509                                 }
2510                         }
2511
2512                         if (params->basic_rates < index) {
2513                                 config_bands = BAND_B;
2514                         } else {
2515                                 config_bands = BAND_G;
2516                                 if (params->basic_rates % index)
2517                                         config_bands |= BAND_B;
2518                         }
2519                 }
2520
2521                 if (cfg80211_get_chandef_type(&params->chandef) !=
2522                                                 NL80211_CHAN_NO_HT)
2523                         config_bands |= BAND_G | BAND_GN;
2524         } else {
2525                 if (cfg80211_get_chandef_type(&params->chandef) ==
2526                                                 NL80211_CHAN_NO_HT)
2527                         config_bands = BAND_A;
2528                 else
2529                         config_bands = BAND_AN | BAND_A;
2530         }
2531
2532         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2533                 adapter->config_bands = config_bands;
2534                 adapter->adhoc_start_band = config_bands;
2535
2536                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2537                         adapter->adhoc_11n_enabled = true;
2538                 else
2539                         adapter->adhoc_11n_enabled = false;
2540         }
2541
2542         adapter->sec_chan_offset =
2543                 mwifiex_chan_type_to_sec_chan_offset(
2544                         cfg80211_get_chandef_type(&params->chandef));
2545         priv->adhoc_channel = ieee80211_frequency_to_channel(
2546                                 params->chandef.chan->center_freq);
2547
2548         mwifiex_dbg(adapter, INFO,
2549                     "info: set ibss band %d, chan %d, chan offset %d\n",
2550                     config_bands, priv->adhoc_channel,
2551                     adapter->sec_chan_offset);
2552
2553         return 0;
2554 }
2555
2556 /*
2557  * CFG802.11 operation handler to join an IBSS.
2558  *
2559  * This function does not work in any mode other than Ad-Hoc, or if
2560  * a join operation is already in progress.
2561  */
2562 static int
2563 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2564                            struct cfg80211_ibss_params *params)
2565 {
2566         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2567         int ret = 0;
2568
2569         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2570                 mwifiex_dbg(priv->adapter, ERROR,
2571                             "request to join ibss received\t"
2572                             "when station is not in ibss mode\n");
2573                 goto done;
2574         }
2575
2576         mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n",
2577                     params->bssid);
2578
2579         mwifiex_set_ibss_params(priv, params);
2580
2581         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2582                                      params->bssid, priv->bss_mode,
2583                                      params->chandef.chan, NULL,
2584                                      params->privacy, NULL);
2585 done:
2586         if (!ret) {
2587                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2588                                      params->chandef.chan, GFP_KERNEL);
2589                 mwifiex_dbg(priv->adapter, MSG,
2590                             "info: joined/created adhoc network with bssid\t"
2591                             "%pM successfully\n", priv->cfg_bssid);
2592         } else {
2593                 mwifiex_dbg(priv->adapter, ERROR,
2594                             "info: failed creating/joining adhoc network\n");
2595         }
2596
2597         return ret;
2598 }
2599
2600 /*
2601  * CFG802.11 operation handler to leave an IBSS.
2602  *
2603  * This function does not work if a leave operation is
2604  * already in progress.
2605  */
2606 static int
2607 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2608 {
2609         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2610
2611         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2612                     priv->cfg_bssid);
2613         if (mwifiex_deauthenticate(priv, NULL))
2614                 return -EFAULT;
2615
2616         eth_zero_addr(priv->cfg_bssid);
2617
2618         return 0;
2619 }
2620
2621 /*
2622  * CFG802.11 operation handler for scan request.
2623  *
2624  * This function issues a scan request to the firmware based upon
2625  * the user specified scan configuration. On successful completion,
2626  * it also informs the results.
2627  */
2628 static int
2629 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2630                       struct cfg80211_scan_request *request)
2631 {
2632         struct net_device *dev = request->wdev->netdev;
2633         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2634         int i, offset, ret;
2635         struct ieee80211_channel *chan;
2636         struct ieee_types_header *ie;
2637         struct mwifiex_user_scan_cfg *user_scan_cfg;
2638         u8 mac_addr[ETH_ALEN];
2639
2640         mwifiex_dbg(priv->adapter, CMD,
2641                     "info: received scan request on %s\n", dev->name);
2642
2643         /* Block scan request if scan operation or scan cleanup when interface
2644          * is disabled is in process
2645          */
2646         if (priv->scan_request || priv->scan_aborting) {
2647                 mwifiex_dbg(priv->adapter, WARN,
2648                             "cmd: Scan already in process..\n");
2649                 return -EBUSY;
2650         }
2651
2652         if (!priv->wdev.current_bss && priv->scan_block)
2653                 priv->scan_block = false;
2654
2655         if (!mwifiex_stop_bg_scan(priv))
2656                 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2657
2658         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2659         if (!user_scan_cfg)
2660                 return -ENOMEM;
2661
2662         priv->scan_request = request;
2663
2664         if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2665                 get_random_mask_addr(mac_addr, request->mac_addr,
2666                                      request->mac_addr_mask);
2667                 ether_addr_copy(request->mac_addr, mac_addr);
2668                 ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2669         }
2670
2671         user_scan_cfg->num_ssids = request->n_ssids;
2672         user_scan_cfg->ssid_list = request->ssids;
2673
2674         if (request->ie && request->ie_len) {
2675                 offset = 0;
2676                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2677                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2678                                 continue;
2679                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2680                         ie = (struct ieee_types_header *)(request->ie + offset);
2681                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2682                         offset += sizeof(*ie) + ie->len;
2683
2684                         if (offset >= request->ie_len)
2685                                 break;
2686                 }
2687         }
2688
2689         for (i = 0; i < min_t(u32, request->n_channels,
2690                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2691                 chan = request->channels[i];
2692                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2693                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2694
2695                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2696                         user_scan_cfg->chan_list[i].scan_type =
2697                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2698                 else
2699                         user_scan_cfg->chan_list[i].scan_type =
2700                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2701
2702                 user_scan_cfg->chan_list[i].scan_time = 0;
2703         }
2704
2705         if (priv->adapter->scan_chan_gap_enabled &&
2706             mwifiex_is_any_intf_active(priv))
2707                 user_scan_cfg->scan_chan_gap =
2708                                               priv->adapter->scan_chan_gap_time;
2709
2710         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2711         kfree(user_scan_cfg);
2712         if (ret) {
2713                 mwifiex_dbg(priv->adapter, ERROR,
2714                             "scan failed: %d\n", ret);
2715                 priv->scan_aborting = false;
2716                 priv->scan_request = NULL;
2717                 return ret;
2718         }
2719
2720         if (request->ie && request->ie_len) {
2721                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2722                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2723                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2724                                 memset(&priv->vs_ie[i].ie, 0,
2725                                        MWIFIEX_MAX_VSIE_LEN);
2726                         }
2727                 }
2728         }
2729         return 0;
2730 }
2731
2732 /* CFG802.11 operation handler for sched_scan_start.
2733  *
2734  * This function issues a bgscan config request to the firmware based upon
2735  * the user specified sched_scan configuration. On successful completion,
2736  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2737  * query command to get sched_scan results from firmware.
2738  */
2739 static int
2740 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2741                                   struct net_device *dev,
2742                                   struct cfg80211_sched_scan_request *request)
2743 {
2744         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2745         int i, offset;
2746         struct ieee80211_channel *chan;
2747         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2748         struct ieee_types_header *ie;
2749
2750         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2751                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2752                           __func__);
2753                 return -EINVAL;
2754         }
2755
2756         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2757                    request->n_ssids, request->n_match_sets);
2758         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2759                    request->n_channels, request->scan_plans->interval,
2760                    (int)request->ie_len);
2761
2762         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2763         if (!bgscan_cfg)
2764                 return -ENOMEM;
2765
2766         if (priv->scan_request || priv->scan_aborting)
2767                 bgscan_cfg->start_later = true;
2768
2769         bgscan_cfg->num_ssids = request->n_match_sets;
2770         bgscan_cfg->ssid_list = request->match_sets;
2771
2772         if (request->ie && request->ie_len) {
2773                 offset = 0;
2774                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2775                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2776                                 continue;
2777                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2778                         ie = (struct ieee_types_header *)(request->ie + offset);
2779                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2780                         offset += sizeof(*ie) + ie->len;
2781
2782                         if (offset >= request->ie_len)
2783                                 break;
2784                 }
2785         }
2786
2787         for (i = 0; i < min_t(u32, request->n_channels,
2788                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2789                 chan = request->channels[i];
2790                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2791                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2792
2793                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2794                         bgscan_cfg->chan_list[i].scan_type =
2795                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2796                 else
2797                         bgscan_cfg->chan_list[i].scan_type =
2798                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2799
2800                 bgscan_cfg->chan_list[i].scan_time = 0;
2801         }
2802
2803         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2804                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2805
2806         /* Use at least 15 second for per scan cycle */
2807         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2808                                      MWIFIEX_BGSCAN_INTERVAL) ?
2809                                 request->scan_plans->interval :
2810                                 MWIFIEX_BGSCAN_INTERVAL;
2811
2812         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2813         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2814                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2815         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2816         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2817         bgscan_cfg->enable = true;
2818         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2819                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2820                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2821         }
2822
2823         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2824                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2825                 kfree(bgscan_cfg);
2826                 return -EFAULT;
2827         }
2828
2829         priv->sched_scanning = true;
2830
2831         kfree(bgscan_cfg);
2832         return 0;
2833 }
2834
2835 /* CFG802.11 operation handler for sched_scan_stop.
2836  *
2837  * This function issues a bgscan config command to disable
2838  * previous bgscan configuration in the firmware
2839  */
2840 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2841                                             struct net_device *dev, u64 reqid)
2842 {
2843         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2844
2845         wiphy_info(wiphy, "sched scan stop!");
2846         mwifiex_stop_bg_scan(priv);
2847
2848         return 0;
2849 }
2850
2851 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2852                                    struct mwifiex_private *priv)
2853 {
2854         struct mwifiex_adapter *adapter = priv->adapter;
2855
2856         vht_info->vht_supported = true;
2857
2858         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2859         /* Update MCS support for VHT */
2860         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2861                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2862         vht_info->vht_mcs.rx_highest = 0;
2863         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2864                                 adapter->hw_dot_11ac_mcs_support >> 16);
2865         vht_info->vht_mcs.tx_highest = 0;
2866 }
2867
2868 /*
2869  * This function sets up the CFG802.11 specific HT capability fields
2870  * with default values.
2871  *
2872  * The following default values are set -
2873  *      - HT Supported = True
2874  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2875  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2876  *      - HT Capabilities supported by firmware
2877  *      - MCS information, Rx mask = 0xff
2878  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2879  */
2880 static void
2881 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2882                       struct mwifiex_private *priv)
2883 {
2884         int rx_mcs_supp;
2885         struct ieee80211_mcs_info mcs_set;
2886         u8 *mcs = (u8 *)&mcs_set;
2887         struct mwifiex_adapter *adapter = priv->adapter;
2888
2889         ht_info->ht_supported = true;
2890         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2891         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2892
2893         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2894
2895         /* Fill HT capability information */
2896         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2897                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2898         else
2899                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2900
2901         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2902                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2903         else
2904                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2905
2906         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2907                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2908         else
2909                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2910
2911         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2912                 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2913         else
2914                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2915
2916         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2917                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2918         else
2919                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2920
2921         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2922                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2923         else
2924                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2925
2926         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2927                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2928         else
2929                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2930
2931         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2932                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2933         else
2934                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2935
2936         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2937         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2938
2939         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2940         /* Set MCS for 1x1/2x2 */
2941         memset(mcs, 0xff, rx_mcs_supp);
2942         /* Clear all the other values */
2943         memset(&mcs[rx_mcs_supp], 0,
2944                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2945         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2946             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2947                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2948                 SETHT_MCS32(mcs_set.rx_mask);
2949
2950         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2951
2952         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2953 }
2954
2955 /*
2956  *  create a new virtual interface with the given name and name assign type
2957  */
2958 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2959                                               const char *name,
2960                                               unsigned char name_assign_type,
2961                                               enum nl80211_iftype type,
2962                                               struct vif_params *params)
2963 {
2964         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2965         struct mwifiex_private *priv;
2966         struct net_device *dev;
2967         void *mdev_priv;
2968         int ret;
2969
2970         if (!adapter)
2971                 return ERR_PTR(-EFAULT);
2972
2973         switch (type) {
2974         case NL80211_IFTYPE_UNSPECIFIED:
2975         case NL80211_IFTYPE_STATION:
2976         case NL80211_IFTYPE_ADHOC:
2977                 if (adapter->curr_iface_comb.sta_intf ==
2978                     adapter->iface_limit.sta_intf) {
2979                         mwifiex_dbg(adapter, ERROR,
2980                                     "cannot create multiple sta/adhoc ifaces\n");
2981                         return ERR_PTR(-EINVAL);
2982                 }
2983
2984                 priv = mwifiex_get_unused_priv_by_bss_type(
2985                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2986                 if (!priv) {
2987                         mwifiex_dbg(adapter, ERROR,
2988                                     "could not get free private struct\n");
2989                         return ERR_PTR(-EFAULT);
2990                 }
2991
2992                 priv->wdev.wiphy = wiphy;
2993                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2994
2995                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2996                         priv->bss_mode = NL80211_IFTYPE_STATION;
2997                 else
2998                         priv->bss_mode = type;
2999
3000                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
3001                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3002                 priv->bss_priority = 0;
3003                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3004
3005                 break;
3006         case NL80211_IFTYPE_AP:
3007                 if (adapter->curr_iface_comb.uap_intf ==
3008                     adapter->iface_limit.uap_intf) {
3009                         mwifiex_dbg(adapter, ERROR,
3010                                     "cannot create multiple AP ifaces\n");
3011                         return ERR_PTR(-EINVAL);
3012                 }
3013
3014                 priv = mwifiex_get_unused_priv_by_bss_type(
3015                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
3016                 if (!priv) {
3017                         mwifiex_dbg(adapter, ERROR,
3018                                     "could not get free private struct\n");
3019                         return ERR_PTR(-EFAULT);
3020                 }
3021
3022                 priv->wdev.wiphy = wiphy;
3023                 priv->wdev.iftype = NL80211_IFTYPE_AP;
3024
3025                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
3026                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3027                 priv->bss_priority = 0;
3028                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
3029                 priv->bss_started = 0;
3030                 priv->bss_mode = type;
3031
3032                 break;
3033         case NL80211_IFTYPE_P2P_CLIENT:
3034                 if (adapter->curr_iface_comb.p2p_intf ==
3035                     adapter->iface_limit.p2p_intf) {
3036                         mwifiex_dbg(adapter, ERROR,
3037                                     "cannot create multiple P2P ifaces\n");
3038                         return ERR_PTR(-EINVAL);
3039                 }
3040
3041                 priv = mwifiex_get_unused_priv_by_bss_type(
3042                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
3043                 if (!priv) {
3044                         mwifiex_dbg(adapter, ERROR,
3045                                     "could not get free private struct\n");
3046                         return ERR_PTR(-EFAULT);
3047                 }
3048
3049                 priv->wdev.wiphy = wiphy;
3050                 /* At start-up, wpa_supplicant tries to change the interface
3051                  * to NL80211_IFTYPE_STATION if it is not managed mode.
3052                  */
3053                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
3054                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
3055
3056                 /* Setting bss_type to P2P tells firmware that this interface
3057                  * is receiving P2P peers found during find phase and doing
3058                  * action frame handshake.
3059                  */
3060                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
3061
3062                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3063                 priv->bss_priority = 0;
3064                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3065                 priv->bss_started = 0;
3066
3067                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
3068                         memset(&priv->wdev, 0, sizeof(priv->wdev));
3069                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3070                         return ERR_PTR(-EFAULT);
3071                 }
3072
3073                 break;
3074         default:
3075                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3076                 return ERR_PTR(-EINVAL);
3077         }
3078
3079         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3080                                name_assign_type, ether_setup,
3081                                IEEE80211_NUM_ACS, 1);
3082         if (!dev) {
3083                 mwifiex_dbg(adapter, ERROR,
3084                             "no memory available for netdevice\n");
3085                 ret = -ENOMEM;
3086                 goto err_alloc_netdev;
3087         }
3088
3089         mwifiex_init_priv_params(priv, dev);
3090
3091         priv->netdev = dev;
3092
3093         if (!adapter->mfg_mode) {
3094                 mwifiex_set_mac_address(priv, dev, false, NULL);
3095
3096                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3097                                        HostCmd_ACT_GEN_SET, 0, NULL, true);
3098                 if (ret)
3099                         goto err_set_bss_mode;
3100
3101                 ret = mwifiex_sta_init_cmd(priv, false, false);
3102                 if (ret)
3103                         goto err_sta_init;
3104         }
3105
3106         mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3107         if (adapter->is_hw_11ac_capable)
3108                 mwifiex_setup_vht_caps(
3109                         &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3110
3111         if (adapter->config_bands & BAND_A)
3112                 mwifiex_setup_ht_caps(
3113                         &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3114
3115         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3116                 mwifiex_setup_vht_caps(
3117                         &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3118
3119         dev_net_set(dev, wiphy_net(wiphy));
3120         dev->ieee80211_ptr = &priv->wdev;
3121         dev->ieee80211_ptr->iftype = priv->bss_mode;
3122         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3123
3124         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3125         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3126         dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN;
3127         dev->ethtool_ops = &mwifiex_ethtool_ops;
3128
3129         mdev_priv = netdev_priv(dev);
3130         *((unsigned long *) mdev_priv) = (unsigned long) priv;
3131
3132         SET_NETDEV_DEV(dev, adapter->dev);
3133
3134         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3135                                                   WQ_HIGHPRI |
3136                                                   WQ_MEM_RECLAIM |
3137                                                   WQ_UNBOUND, 1, name);
3138         if (!priv->dfs_cac_workqueue) {
3139                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3140                 ret = -ENOMEM;
3141                 goto err_alloc_cac;
3142         }
3143
3144         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3145
3146         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3147                                                       WQ_HIGHPRI | WQ_UNBOUND |
3148                                                       WQ_MEM_RECLAIM, 1, name);
3149         if (!priv->dfs_chan_sw_workqueue) {
3150                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3151                 ret = -ENOMEM;
3152                 goto err_alloc_chsw;
3153         }
3154
3155         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3156                           mwifiex_dfs_chan_sw_work_queue);
3157
3158         mutex_init(&priv->async_mutex);
3159
3160         /* Register network device */
3161         if (cfg80211_register_netdevice(dev)) {
3162                 mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3163                 ret = -EFAULT;
3164                 goto err_reg_netdev;
3165         }
3166
3167         mwifiex_dbg(adapter, INFO,
3168                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
3169
3170 #ifdef CONFIG_DEBUG_FS
3171         mwifiex_dev_debugfs_init(priv);
3172 #endif
3173
3174         update_vif_type_counter(adapter, type, +1);
3175
3176         return &priv->wdev;
3177
3178 err_reg_netdev:
3179         destroy_workqueue(priv->dfs_chan_sw_workqueue);
3180         priv->dfs_chan_sw_workqueue = NULL;
3181 err_alloc_chsw:
3182         destroy_workqueue(priv->dfs_cac_workqueue);
3183         priv->dfs_cac_workqueue = NULL;
3184 err_alloc_cac:
3185         free_netdev(dev);
3186         priv->netdev = NULL;
3187 err_sta_init:
3188 err_set_bss_mode:
3189 err_alloc_netdev:
3190         memset(&priv->wdev, 0, sizeof(priv->wdev));
3191         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3192         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3193         return ERR_PTR(ret);
3194 }
3195 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3196
3197 /*
3198  * del_virtual_intf: remove the virtual interface determined by dev
3199  */
3200 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3201 {
3202         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3203         struct mwifiex_adapter *adapter = priv->adapter;
3204         struct sk_buff *skb, *tmp;
3205
3206 #ifdef CONFIG_DEBUG_FS
3207         mwifiex_dev_debugfs_remove(priv);
3208 #endif
3209
3210         if (priv->sched_scanning)
3211                 priv->sched_scanning = false;
3212
3213         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3214
3215         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3216                 skb_unlink(skb, &priv->bypass_txq);
3217                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3218         }
3219
3220         if (netif_carrier_ok(priv->netdev))
3221                 netif_carrier_off(priv->netdev);
3222
3223         if (wdev->netdev->reg_state == NETREG_REGISTERED)
3224                 cfg80211_unregister_netdevice(wdev->netdev);
3225
3226         if (priv->dfs_cac_workqueue) {
3227                 destroy_workqueue(priv->dfs_cac_workqueue);
3228                 priv->dfs_cac_workqueue = NULL;
3229         }
3230
3231         if (priv->dfs_chan_sw_workqueue) {
3232                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3233                 priv->dfs_chan_sw_workqueue = NULL;
3234         }
3235         /* Clear the priv in adapter */
3236         priv->netdev = NULL;
3237
3238         update_vif_type_counter(adapter, priv->bss_mode, -1);
3239
3240         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3241
3242         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3243             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3244                 kfree(priv->hist_data);
3245
3246         return 0;
3247 }
3248 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3249
3250 static bool
3251 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3252                              u8 max_byte_seq)
3253 {
3254         int j, k, valid_byte_cnt = 0;
3255         bool dont_care_byte = false;
3256
3257         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3258                 for (k = 0; k < 8; k++) {
3259                         if (pat->mask[j] & 1 << k) {
3260                                 memcpy(byte_seq + valid_byte_cnt,
3261                                        &pat->pattern[j * 8 + k], 1);
3262                                 valid_byte_cnt++;
3263                                 if (dont_care_byte)
3264                                         return false;
3265                         } else {
3266                                 if (valid_byte_cnt)
3267                                         dont_care_byte = true;
3268                         }
3269
3270                         /* wildcard bytes record as the offset
3271                          * before the valid byte
3272                          */
3273                         if (!valid_byte_cnt && !dont_care_byte)
3274                                 pat->pkt_offset++;
3275
3276                         if (valid_byte_cnt > max_byte_seq)
3277                                 return false;
3278                 }
3279         }
3280
3281         byte_seq[max_byte_seq] = valid_byte_cnt;
3282
3283         return true;
3284 }
3285
3286 #ifdef CONFIG_PM
3287 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3288                                            struct mwifiex_mef_entry *mef_entry)
3289 {
3290         int i, filt_num = 0, num_ipv4 = 0;
3291         struct in_device *in_dev;
3292         struct in_ifaddr *ifa;
3293         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3294         struct mwifiex_adapter *adapter = priv->adapter;
3295
3296         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3297         mef_entry->action = MEF_ACTION_AUTO_ARP;
3298
3299         /* Enable ARP offload feature */
3300         memset(ips, 0, sizeof(ips));
3301         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3302                 if (adapter->priv[i]->netdev) {
3303                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3304                         if (!in_dev)
3305                                 continue;
3306                         ifa = rtnl_dereference(in_dev->ifa_list);
3307                         if (!ifa || !ifa->ifa_local)
3308                                 continue;
3309                         ips[i] = ifa->ifa_local;
3310                         num_ipv4++;
3311                 }
3312         }
3313
3314         for (i = 0; i < num_ipv4; i++) {
3315                 if (!ips[i])
3316                         continue;
3317                 mef_entry->filter[filt_num].repeat = 1;
3318                 memcpy(mef_entry->filter[filt_num].byte_seq,
3319                        (u8 *)&ips[i], sizeof(ips[i]));
3320                 mef_entry->filter[filt_num].
3321                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3322                         sizeof(ips[i]);
3323                 mef_entry->filter[filt_num].offset = 46;
3324                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3325                 if (filt_num) {
3326                         mef_entry->filter[filt_num].filt_action =
3327                                 TYPE_OR;
3328                 }
3329                 filt_num++;
3330         }
3331
3332         mef_entry->filter[filt_num].repeat = 1;
3333         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3334         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3335         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3336         mef_entry->filter[filt_num].offset = 20;
3337         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3338         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3339 }
3340
3341 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3342                                         struct mwifiex_ds_mef_cfg *mef_cfg,
3343                                         struct mwifiex_mef_entry *mef_entry,
3344                                         struct cfg80211_wowlan *wowlan)
3345 {
3346         int i, filt_num = 0, ret = 0;
3347         bool first_pat = true;
3348         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3349         static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3350         static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3351
3352         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3353         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3354
3355         for (i = 0; i < wowlan->n_patterns; i++) {
3356                 memset(byte_seq, 0, sizeof(byte_seq));
3357                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3358                                         byte_seq,
3359                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3360                         mwifiex_dbg(priv->adapter, ERROR,
3361                                     "Pattern not supported\n");
3362                         return -EOPNOTSUPP;
3363                 }
3364
3365                 if (!wowlan->patterns[i].pkt_offset) {
3366                         if (!(byte_seq[0] & 0x01) &&
3367                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3368                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3369                                 continue;
3370                         } else if (is_broadcast_ether_addr(byte_seq)) {
3371                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3372                                 continue;
3373                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3374                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3375                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3376                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3377                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3378                                 continue;
3379                         }
3380                 }
3381                 mef_entry->filter[filt_num].repeat = 1;
3382                 mef_entry->filter[filt_num].offset =
3383                         wowlan->patterns[i].pkt_offset;
3384                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3385                                 sizeof(byte_seq));
3386                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3387
3388                 if (first_pat) {
3389                         first_pat = false;
3390                         mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3391                 } else {
3392                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3393                 }
3394
3395                 filt_num++;
3396         }
3397
3398         if (wowlan->magic_pkt) {
3399                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3400                 mef_entry->filter[filt_num].repeat = 16;
3401                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3402                                 ETH_ALEN);
3403                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3404                         ETH_ALEN;
3405                 mef_entry->filter[filt_num].offset = 28;
3406                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3407                 if (filt_num)
3408                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3409
3410                 filt_num++;
3411                 mef_entry->filter[filt_num].repeat = 16;
3412                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3413                                 ETH_ALEN);
3414                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3415                         ETH_ALEN;
3416                 mef_entry->filter[filt_num].offset = 56;
3417                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3418                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3419                 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3420         }
3421         return ret;
3422 }
3423
3424 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3425                                   struct cfg80211_wowlan *wowlan)
3426 {
3427         int ret = 0, num_entries = 1;
3428         struct mwifiex_ds_mef_cfg mef_cfg;
3429         struct mwifiex_mef_entry *mef_entry;
3430
3431         if (wowlan->n_patterns || wowlan->magic_pkt)
3432                 num_entries++;
3433
3434         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3435         if (!mef_entry)
3436                 return -ENOMEM;
3437
3438         memset(&mef_cfg, 0, sizeof(mef_cfg));
3439         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3440                 MWIFIEX_CRITERIA_UNICAST;
3441         mef_cfg.num_entries = num_entries;
3442         mef_cfg.mef_entry = mef_entry;
3443
3444         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3445
3446         if (wowlan->n_patterns || wowlan->magic_pkt) {
3447                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3448                                                    &mef_entry[1], wowlan);
3449                 if (ret)
3450                         goto err;
3451         }
3452
3453         if (!mef_cfg.criteria)
3454                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3455                         MWIFIEX_CRITERIA_UNICAST |
3456                         MWIFIEX_CRITERIA_MULTICAST;
3457
3458         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3459                         HostCmd_ACT_GEN_SET, 0,
3460                         &mef_cfg, true);
3461
3462 err:
3463         kfree(mef_entry);
3464         return ret;
3465 }
3466
3467 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3468                                     struct cfg80211_wowlan *wowlan)
3469 {
3470         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3471         struct mwifiex_ds_hs_cfg hs_cfg;
3472         int i, ret = 0, retry_num = 10;
3473         struct mwifiex_private *priv;
3474         struct mwifiex_private *sta_priv =
3475                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3476
3477         sta_priv->scan_aborting = true;
3478         for (i = 0; i < adapter->priv_num; i++) {
3479                 priv = adapter->priv[i];
3480                 mwifiex_abort_cac(priv);
3481         }
3482
3483         mwifiex_cancel_all_pending_cmd(adapter);
3484
3485         for (i = 0; i < adapter->priv_num; i++) {
3486                 priv = adapter->priv[i];
3487                 if (priv && priv->netdev)
3488                         netif_device_detach(priv->netdev);
3489         }
3490
3491         for (i = 0; i < retry_num; i++) {
3492                 if (!mwifiex_wmm_lists_empty(adapter) ||
3493                     !mwifiex_bypass_txlist_empty(adapter) ||
3494                     !skb_queue_empty(&adapter->tx_data_q))
3495                         usleep_range(10000, 15000);
3496                 else
3497                         break;
3498         }
3499
3500         if (!wowlan) {
3501                 mwifiex_dbg(adapter, INFO,
3502                             "None of the WOWLAN triggers enabled\n");
3503                 ret = 0;
3504                 goto done;
3505         }
3506
3507         if (!sta_priv->media_connected && !wowlan->nd_config) {
3508                 mwifiex_dbg(adapter, ERROR,
3509                             "Can not configure WOWLAN in disconnected state\n");
3510                 ret = 0;
3511                 goto done;
3512         }
3513
3514         ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3515         if (ret) {
3516                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3517                 goto done;
3518         }
3519
3520         memset(&hs_cfg, 0, sizeof(hs_cfg));
3521         hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3522
3523         if (wowlan->nd_config) {
3524                 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3525                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3526                 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3527                                                   wowlan->nd_config);
3528         }
3529
3530         if (wowlan->disconnect) {
3531                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3532                 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3533         }
3534
3535         hs_cfg.is_invoke_hostcmd = false;
3536         hs_cfg.gpio = adapter->hs_cfg.gpio;
3537         hs_cfg.gap = adapter->hs_cfg.gap;
3538         ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3539                                     MWIFIEX_SYNC_CMD, &hs_cfg);
3540         if (ret)
3541                 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3542
3543 done:
3544         sta_priv->scan_aborting = false;
3545         return ret;
3546 }
3547
3548 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3549 {
3550         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3551         struct mwifiex_private *priv;
3552         struct mwifiex_ds_wakeup_reason wakeup_reason;
3553         struct cfg80211_wowlan_wakeup wakeup_report;
3554         int i;
3555         bool report_wakeup_reason = true;
3556
3557         for (i = 0; i < adapter->priv_num; i++) {
3558                 priv = adapter->priv[i];
3559                 if (priv && priv->netdev)
3560                         netif_device_attach(priv->netdev);
3561         }
3562
3563         if (!wiphy->wowlan_config)
3564                 goto done;
3565
3566         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3567         mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3568                                   &wakeup_reason);
3569         memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3570
3571         wakeup_report.pattern_idx = -1;
3572
3573         switch (wakeup_reason.hs_wakeup_reason) {
3574         case NO_HSWAKEUP_REASON:
3575                 break;
3576         case BCAST_DATA_MATCHED:
3577                 break;
3578         case MCAST_DATA_MATCHED:
3579                 break;
3580         case UCAST_DATA_MATCHED:
3581                 break;
3582         case MASKTABLE_EVENT_MATCHED:
3583                 break;
3584         case NON_MASKABLE_EVENT_MATCHED:
3585                 if (wiphy->wowlan_config->disconnect)
3586                         wakeup_report.disconnect = true;
3587                 if (wiphy->wowlan_config->nd_config)
3588                         wakeup_report.net_detect = adapter->nd_info;
3589                 break;
3590         case NON_MASKABLE_CONDITION_MATCHED:
3591                 break;
3592         case MAGIC_PATTERN_MATCHED:
3593                 if (wiphy->wowlan_config->magic_pkt)
3594                         wakeup_report.magic_pkt = true;
3595                 if (wiphy->wowlan_config->n_patterns)
3596                         wakeup_report.pattern_idx = 1;
3597                 break;
3598         case GTK_REKEY_FAILURE:
3599                 if (wiphy->wowlan_config->gtk_rekey_failure)
3600                         wakeup_report.gtk_rekey_failure = true;
3601                 break;
3602         default:
3603                 report_wakeup_reason = false;
3604                 break;
3605         }
3606
3607         if (report_wakeup_reason)
3608                 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3609                                               GFP_KERNEL);
3610
3611 done:
3612         if (adapter->nd_info) {
3613                 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3614                         kfree(adapter->nd_info->matches[i]);
3615                 kfree(adapter->nd_info);
3616                 adapter->nd_info = NULL;
3617         }
3618
3619         return 0;
3620 }
3621
3622 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3623                                        bool enabled)
3624 {
3625         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3626
3627         device_set_wakeup_enable(adapter->dev, enabled);
3628 }
3629
3630 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3631                                   struct cfg80211_gtk_rekey_data *data)
3632 {
3633         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3634
3635         if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3636                 return -EOPNOTSUPP;
3637
3638         return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3639                                 HostCmd_ACT_GEN_SET, 0, data, true);
3640 }
3641
3642 #endif
3643
3644 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3645 {
3646         static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3647         static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3648         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3649
3650         if ((byte_seq[0] & 0x01) &&
3651             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3652                 return PACKET_TYPE_UNICAST;
3653         else if (!memcmp(byte_seq, bc_mac, 4))
3654                 return PACKET_TYPE_BROADCAST;
3655         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3656                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3657                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3658                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3659                 return PACKET_TYPE_MULTICAST;
3660
3661         return 0;
3662 }
3663
3664 static int
3665 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3666                                 struct cfg80211_coalesce_rules *crule,
3667                                 struct mwifiex_coalesce_rule *mrule)
3668 {
3669         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3670         struct filt_field_param *param;
3671         int i;
3672
3673         mrule->max_coalescing_delay = crule->delay;
3674
3675         param = mrule->params;
3676
3677         for (i = 0; i < crule->n_patterns; i++) {
3678                 memset(byte_seq, 0, sizeof(byte_seq));
3679                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3680                                                   byte_seq,
3681                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3682                         mwifiex_dbg(priv->adapter, ERROR,
3683                                     "Pattern not supported\n");
3684                         return -EOPNOTSUPP;
3685                 }
3686
3687                 if (!crule->patterns[i].pkt_offset) {
3688                         u8 pkt_type;
3689
3690                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3691                         if (pkt_type && mrule->pkt_type) {
3692                                 mwifiex_dbg(priv->adapter, ERROR,
3693                                             "Multiple packet types not allowed\n");
3694                                 return -EOPNOTSUPP;
3695                         } else if (pkt_type) {
3696                                 mrule->pkt_type = pkt_type;
3697                                 continue;
3698                         }
3699                 }
3700
3701                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3702                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3703                 else
3704                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3705
3706                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3707                 memcpy(param->operand_byte_stream, byte_seq,
3708                        param->operand_len);
3709                 param->offset = crule->patterns[i].pkt_offset;
3710                 param++;
3711
3712                 mrule->num_of_fields++;
3713         }
3714
3715         if (!mrule->pkt_type) {
3716                 mwifiex_dbg(priv->adapter, ERROR,
3717                             "Packet type can not be determined\n");
3718                 return -EOPNOTSUPP;
3719         }
3720
3721         return 0;
3722 }
3723
3724 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3725                                          struct cfg80211_coalesce *coalesce)
3726 {
3727         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3728         int i, ret;
3729         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3730         struct mwifiex_private *priv =
3731                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3732
3733         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3734         if (!coalesce) {
3735                 mwifiex_dbg(adapter, WARN,
3736                             "Disable coalesce and reset all previous rules\n");
3737                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3738                                         HostCmd_ACT_GEN_SET, 0,
3739                                         &coalesce_cfg, true);
3740         }
3741
3742         coalesce_cfg.num_of_rules = coalesce->n_rules;
3743         for (i = 0; i < coalesce->n_rules; i++) {
3744                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3745                                                       &coalesce_cfg.rule[i]);
3746                 if (ret) {
3747                         mwifiex_dbg(adapter, ERROR,
3748                                     "Recheck the patterns provided for rule %d\n",
3749                                 i + 1);
3750                         return ret;
3751                 }
3752         }
3753
3754         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3755                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3756 }
3757
3758 /* cfg80211 ops handler for tdls_mgmt.
3759  * Function prepares TDLS action frame packets and forwards them to FW
3760  */
3761 static int
3762 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3763                            const u8 *peer, u8 action_code, u8 dialog_token,
3764                            u16 status_code, u32 peer_capability,
3765                            bool initiator, const u8 *extra_ies,
3766                            size_t extra_ies_len)
3767 {
3768         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3769         int ret;
3770
3771         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3772                 return -EOPNOTSUPP;
3773
3774         /* make sure we are in station mode and connected */
3775         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3776                 return -EOPNOTSUPP;
3777
3778         switch (action_code) {
3779         case WLAN_TDLS_SETUP_REQUEST:
3780                 mwifiex_dbg(priv->adapter, MSG,
3781                             "Send TDLS Setup Request to %pM status_code=%d\n",
3782                             peer, status_code);
3783                 mwifiex_add_auto_tdls_peer(priv, peer);
3784                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3785                                                    dialog_token, status_code,
3786                                                    extra_ies, extra_ies_len);
3787                 break;
3788         case WLAN_TDLS_SETUP_RESPONSE:
3789                 mwifiex_add_auto_tdls_peer(priv, peer);
3790                 mwifiex_dbg(priv->adapter, MSG,
3791                             "Send TDLS Setup Response to %pM status_code=%d\n",
3792                             peer, status_code);
3793                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3794                                                    dialog_token, status_code,
3795                                                    extra_ies, extra_ies_len);
3796                 break;
3797         case WLAN_TDLS_SETUP_CONFIRM:
3798                 mwifiex_dbg(priv->adapter, MSG,
3799                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3800                             status_code);
3801                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3802                                                    dialog_token, status_code,
3803                                                    extra_ies, extra_ies_len);
3804                 break;
3805         case WLAN_TDLS_TEARDOWN:
3806                 mwifiex_dbg(priv->adapter, MSG,
3807                             "Send TDLS Tear down to %pM\n", peer);
3808                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3809                                                    dialog_token, status_code,
3810                                                    extra_ies, extra_ies_len);
3811                 break;
3812         case WLAN_TDLS_DISCOVERY_REQUEST:
3813                 mwifiex_dbg(priv->adapter, MSG,
3814                             "Send TDLS Discovery Request to %pM\n", peer);
3815                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3816                                                    dialog_token, status_code,
3817                                                    extra_ies, extra_ies_len);
3818                 break;
3819         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3820                 mwifiex_dbg(priv->adapter, MSG,
3821                             "Send TDLS Discovery Response to %pM\n", peer);
3822                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3823                                                    dialog_token, status_code,
3824                                                    extra_ies, extra_ies_len);
3825                 break;
3826         default:
3827                 mwifiex_dbg(priv->adapter, ERROR,
3828                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3829                 ret = -EINVAL;
3830                 break;
3831         }
3832
3833         return ret;
3834 }
3835
3836 static int
3837 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3838                            const u8 *peer, enum nl80211_tdls_operation action)
3839 {
3840         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3841
3842         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3843             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3844                 return -EOPNOTSUPP;
3845
3846         /* make sure we are in station mode and connected */
3847         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3848                 return -EOPNOTSUPP;
3849
3850         mwifiex_dbg(priv->adapter, MSG,
3851                     "TDLS peer=%pM, oper=%d\n", peer, action);
3852
3853         switch (action) {
3854         case NL80211_TDLS_ENABLE_LINK:
3855                 action = MWIFIEX_TDLS_ENABLE_LINK;
3856                 break;
3857         case NL80211_TDLS_DISABLE_LINK:
3858                 action = MWIFIEX_TDLS_DISABLE_LINK;
3859                 break;
3860         case NL80211_TDLS_TEARDOWN:
3861                 /* shouldn't happen!*/
3862                 mwifiex_dbg(priv->adapter, ERROR,
3863                             "tdls_oper: teardown from driver not supported\n");
3864                 return -EINVAL;
3865         case NL80211_TDLS_SETUP:
3866                 /* shouldn't happen!*/
3867                 mwifiex_dbg(priv->adapter, ERROR,
3868                             "tdls_oper: setup from driver not supported\n");
3869                 return -EINVAL;
3870         case NL80211_TDLS_DISCOVERY_REQ:
3871                 /* shouldn't happen!*/
3872                 mwifiex_dbg(priv->adapter, ERROR,
3873                             "tdls_oper: discovery from driver not supported\n");
3874                 return -EINVAL;
3875         default:
3876                 mwifiex_dbg(priv->adapter, ERROR,
3877                             "tdls_oper: operation not supported\n");
3878                 return -EOPNOTSUPP;
3879         }
3880
3881         return mwifiex_tdls_oper(priv, peer, action);
3882 }
3883
3884 static int
3885 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3886                                   const u8 *addr, u8 oper_class,
3887                                   struct cfg80211_chan_def *chandef)
3888 {
3889         struct mwifiex_sta_node *sta_ptr;
3890         u16 chan;
3891         u8 second_chan_offset, band;
3892         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3893
3894         spin_lock_bh(&priv->sta_list_spinlock);
3895         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3896         if (!sta_ptr) {
3897                 spin_unlock_bh(&priv->sta_list_spinlock);
3898                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3899                           __func__, addr);
3900                 return -ENOENT;
3901         }
3902
3903         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3904               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3905                 spin_unlock_bh(&priv->sta_list_spinlock);
3906                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3907                 return -ENOENT;
3908         }
3909
3910         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3911             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3912                 spin_unlock_bh(&priv->sta_list_spinlock);
3913                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3914                 return -EALREADY;
3915         }
3916         spin_unlock_bh(&priv->sta_list_spinlock);
3917
3918         chan = chandef->chan->hw_value;
3919         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3920         band = chandef->chan->band;
3921         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3922
3923         return 0;
3924 }
3925
3926 static void
3927 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3928                                          struct net_device *dev,
3929                                          const u8 *addr)
3930 {
3931         struct mwifiex_sta_node *sta_ptr;
3932         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3933
3934         spin_lock_bh(&priv->sta_list_spinlock);
3935         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3936         if (!sta_ptr) {
3937                 spin_unlock_bh(&priv->sta_list_spinlock);
3938                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3939                           __func__, addr);
3940         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3941                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3942                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3943                 spin_unlock_bh(&priv->sta_list_spinlock);
3944                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3945                           addr);
3946         } else {
3947                 spin_unlock_bh(&priv->sta_list_spinlock);
3948                 mwifiex_stop_tdls_cs(priv, addr);
3949         }
3950 }
3951
3952 static int
3953 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3954                              const u8 *mac, struct station_parameters *params)
3955 {
3956         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3957
3958         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3959                 return -EOPNOTSUPP;
3960
3961         /* make sure we are in station mode and connected */
3962         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3963                 return -EOPNOTSUPP;
3964
3965         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3966 }
3967
3968 static int
3969 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3970                                 struct cfg80211_csa_settings *params)
3971 {
3972         struct ieee_types_header *chsw_ie;
3973         struct ieee80211_channel_sw_ie *channel_sw;
3974         int chsw_msec;
3975         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3976
3977         if (priv->adapter->scan_processing) {
3978                 mwifiex_dbg(priv->adapter, ERROR,
3979                             "radar detection: scan in process...\n");
3980                 return -EBUSY;
3981         }
3982
3983         if (priv->wdev.cac_started)
3984                 return -EBUSY;
3985
3986         if (cfg80211_chandef_identical(&params->chandef,
3987                                        &priv->dfs_chandef))
3988                 return -EINVAL;
3989
3990         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3991                                            params->beacon_csa.tail,
3992                                            params->beacon_csa.tail_len);
3993         if (!chsw_ie) {
3994                 mwifiex_dbg(priv->adapter, ERROR,
3995                             "Could not parse channel switch announcement IE\n");
3996                 return -EINVAL;
3997         }
3998
3999         channel_sw = (void *)(chsw_ie + 1);
4000         if (channel_sw->mode) {
4001                 if (netif_carrier_ok(priv->netdev))
4002                         netif_carrier_off(priv->netdev);
4003                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
4004         }
4005
4006         if (mwifiex_del_mgmt_ies(priv))
4007                 mwifiex_dbg(priv->adapter, ERROR,
4008                             "Failed to delete mgmt IEs!\n");
4009
4010         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
4011                 mwifiex_dbg(priv->adapter, ERROR,
4012                             "%s: setting mgmt ies failed\n", __func__);
4013                 return -EFAULT;
4014         }
4015
4016         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
4017         memcpy(&priv->beacon_after, &params->beacon_after,
4018                sizeof(priv->beacon_after));
4019
4020         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
4021         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
4022                            msecs_to_jiffies(chsw_msec));
4023         return 0;
4024 }
4025
4026 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
4027                                         struct wireless_dev *wdev,
4028                                         struct cfg80211_chan_def *chandef)
4029 {
4030         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4031         struct mwifiex_bssdescriptor *curr_bss;
4032         struct ieee80211_channel *chan;
4033         enum nl80211_channel_type chan_type;
4034         enum nl80211_band band;
4035         int freq;
4036         int ret = -ENODATA;
4037
4038         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
4039             cfg80211_chandef_valid(&priv->bss_chandef)) {
4040                 *chandef = priv->bss_chandef;
4041                 ret = 0;
4042         } else if (priv->media_connected) {
4043                 curr_bss = &priv->curr_bss_params.bss_descriptor;
4044                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
4045                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
4046                 chan = ieee80211_get_channel(wiphy, freq);
4047
4048                 if (priv->ht_param_present) {
4049                         chan_type = mwifiex_get_chan_type(priv);
4050                         cfg80211_chandef_create(chandef, chan, chan_type);
4051                 } else {
4052                         cfg80211_chandef_create(chandef, chan,
4053                                                 NL80211_CHAN_NO_HT);
4054                 }
4055                 ret = 0;
4056         }
4057
4058         return ret;
4059 }
4060
4061 #ifdef CONFIG_NL80211_TESTMODE
4062
4063 enum mwifiex_tm_attr {
4064         __MWIFIEX_TM_ATTR_INVALID       = 0,
4065         MWIFIEX_TM_ATTR_CMD             = 1,
4066         MWIFIEX_TM_ATTR_DATA            = 2,
4067
4068         /* keep last */
4069         __MWIFIEX_TM_ATTR_AFTER_LAST,
4070         MWIFIEX_TM_ATTR_MAX             = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4071 };
4072
4073 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4074         [MWIFIEX_TM_ATTR_CMD]           = { .type = NLA_U32 },
4075         [MWIFIEX_TM_ATTR_DATA]          = { .type = NLA_BINARY,
4076                                             .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4077 };
4078
4079 enum mwifiex_tm_command {
4080         MWIFIEX_TM_CMD_HOSTCMD  = 0,
4081 };
4082
4083 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4084                           void *data, int len)
4085 {
4086         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4087         struct mwifiex_ds_misc_cmd *hostcmd;
4088         struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4089         struct sk_buff *skb;
4090         int err;
4091
4092         if (!priv)
4093                 return -EINVAL;
4094
4095         err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len,
4096                                    mwifiex_tm_policy, NULL);
4097         if (err)
4098                 return err;
4099
4100         if (!tb[MWIFIEX_TM_ATTR_CMD])
4101                 return -EINVAL;
4102
4103         switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4104         case MWIFIEX_TM_CMD_HOSTCMD:
4105                 if (!tb[MWIFIEX_TM_ATTR_DATA])
4106                         return -EINVAL;
4107
4108                 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4109                 if (!hostcmd)
4110                         return -ENOMEM;
4111
4112                 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4113                 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4114                        hostcmd->len);
4115
4116                 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4117                         dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4118                         kfree(hostcmd);
4119                         return -EFAULT;
4120                 }
4121
4122                 /* process hostcmd response*/
4123                 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4124                 if (!skb) {
4125                         kfree(hostcmd);
4126                         return -ENOMEM;
4127                 }
4128                 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4129                               hostcmd->len, hostcmd->cmd);
4130                 if (err) {
4131                         kfree(hostcmd);
4132                         kfree_skb(skb);
4133                         return -EMSGSIZE;
4134                 }
4135
4136                 err = cfg80211_testmode_reply(skb);
4137                 kfree(hostcmd);
4138                 return err;
4139         default:
4140                 return -EOPNOTSUPP;
4141         }
4142 }
4143 #endif
4144
4145 static int
4146 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4147                                        struct net_device *dev,
4148                                        struct cfg80211_chan_def *chandef,
4149                                        u32 cac_time_ms)
4150 {
4151         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4152         struct mwifiex_radar_params radar_params;
4153
4154         if (priv->adapter->scan_processing) {
4155                 mwifiex_dbg(priv->adapter, ERROR,
4156                             "radar detection: scan already in process...\n");
4157                 return -EBUSY;
4158         }
4159
4160         if (!mwifiex_is_11h_active(priv)) {
4161                 mwifiex_dbg(priv->adapter, INFO,
4162                             "Enable 11h extensions in FW\n");
4163                 if (mwifiex_11h_activate(priv, true)) {
4164                         mwifiex_dbg(priv->adapter, ERROR,
4165                                     "Failed to activate 11h extensions!!");
4166                         return -1;
4167                 }
4168                 priv->state_11h.is_11h_active = true;
4169         }
4170
4171         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4172         radar_params.chandef = chandef;
4173         radar_params.cac_time_ms = cac_time_ms;
4174
4175         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4176
4177         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4178                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4179                 return -1;
4180
4181         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4182                            msecs_to_jiffies(cac_time_ms));
4183         return 0;
4184 }
4185
4186 static int
4187 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4188                                 const u8 *mac,
4189                                 struct station_parameters *params)
4190 {
4191         int ret;
4192         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4193
4194         /* we support change_station handler only for TDLS peers*/
4195         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4196                 return -EOPNOTSUPP;
4197
4198         /* make sure we are in station mode and connected */
4199         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4200                 return -EOPNOTSUPP;
4201
4202         priv->sta_params = params;
4203
4204         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4205         priv->sta_params = NULL;
4206
4207         return ret;
4208 }
4209
4210 /* station cfg80211 operations */
4211 static struct cfg80211_ops mwifiex_cfg80211_ops = {
4212         .add_virtual_intf = mwifiex_add_virtual_intf,
4213         .del_virtual_intf = mwifiex_del_virtual_intf,
4214         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4215         .scan = mwifiex_cfg80211_scan,
4216         .connect = mwifiex_cfg80211_connect,
4217         .disconnect = mwifiex_cfg80211_disconnect,
4218         .get_station = mwifiex_cfg80211_get_station,
4219         .dump_station = mwifiex_cfg80211_dump_station,
4220         .dump_survey = mwifiex_cfg80211_dump_survey,
4221         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4222         .join_ibss = mwifiex_cfg80211_join_ibss,
4223         .leave_ibss = mwifiex_cfg80211_leave_ibss,
4224         .add_key = mwifiex_cfg80211_add_key,
4225         .del_key = mwifiex_cfg80211_del_key,
4226         .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4227         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4228         .update_mgmt_frame_registrations =
4229                 mwifiex_cfg80211_update_mgmt_frame_registrations,
4230         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4231         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4232         .set_default_key = mwifiex_cfg80211_set_default_key,
4233         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4234         .set_tx_power = mwifiex_cfg80211_set_tx_power,
4235         .get_tx_power = mwifiex_cfg80211_get_tx_power,
4236         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4237         .start_ap = mwifiex_cfg80211_start_ap,
4238         .stop_ap = mwifiex_cfg80211_stop_ap,
4239         .change_beacon = mwifiex_cfg80211_change_beacon,
4240         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4241         .set_antenna = mwifiex_cfg80211_set_antenna,
4242         .get_antenna = mwifiex_cfg80211_get_antenna,
4243         .del_station = mwifiex_cfg80211_del_station,
4244         .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4245         .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4246 #ifdef CONFIG_PM
4247         .suspend = mwifiex_cfg80211_suspend,
4248         .resume = mwifiex_cfg80211_resume,
4249         .set_wakeup = mwifiex_cfg80211_set_wakeup,
4250         .set_rekey_data = mwifiex_set_rekey_data,
4251 #endif
4252         .set_coalesce = mwifiex_cfg80211_set_coalesce,
4253         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4254         .tdls_oper = mwifiex_cfg80211_tdls_oper,
4255         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4256         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4257         .add_station = mwifiex_cfg80211_add_station,
4258         .change_station = mwifiex_cfg80211_change_station,
4259         CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4260         .get_channel = mwifiex_cfg80211_get_channel,
4261         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4262         .channel_switch = mwifiex_cfg80211_channel_switch,
4263 };
4264
4265 #ifdef CONFIG_PM
4266 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4267         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4268                 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4269                 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4270         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4271         .pattern_min_len = 1,
4272         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4273         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4274         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4275 };
4276
4277 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4278         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4279                  WIPHY_WOWLAN_NET_DETECT,
4280         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4281         .pattern_min_len = 1,
4282         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4283         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4284         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4285 };
4286 #endif
4287
4288 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4289 {
4290         if (!alpha2 || strlen(alpha2) != 2)
4291                 return false;
4292
4293         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4294                 return true;
4295
4296         return false;
4297 }
4298
4299 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4300         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4301         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4302         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4303         .pattern_min_len = 1,
4304         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4305         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4306 };
4307
4308 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4309 {
4310         u32 n_channels_bg, n_channels_a = 0;
4311
4312         n_channels_bg = mwifiex_band_2ghz.n_channels;
4313
4314         if (adapter->config_bands & BAND_A)
4315                 n_channels_a = mwifiex_band_5ghz.n_channels;
4316
4317         /* allocate twice the number total channels, since the driver issues an
4318          * additional active scan request for hidden SSIDs on passive channels.
4319          */
4320         adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4321         adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats),
4322                                                  adapter->num_in_chan_stats));
4323
4324         if (!adapter->chan_stats)
4325                 return -ENOMEM;
4326
4327         return 0;
4328 }
4329
4330 /*
4331  * This function registers the device with CFG802.11 subsystem.
4332  *
4333  * The function creates the wireless device/wiphy, populates it with
4334  * default parameters and handler function pointers, and finally
4335  * registers the device.
4336  */
4337
4338 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4339 {
4340         int ret;
4341         void *wdev_priv;
4342         struct wiphy *wiphy;
4343         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4344         u8 *country_code;
4345         u32 thr, retry;
4346
4347         /* create a new wiphy for use with cfg80211 */
4348         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4349                           sizeof(struct mwifiex_adapter *));
4350         if (!wiphy) {
4351                 mwifiex_dbg(adapter, ERROR,
4352                             "%s: creating new wiphy\n", __func__);
4353                 return -ENOMEM;
4354         }
4355         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4356         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4357         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4358         wiphy->max_remain_on_channel_duration = 5000;
4359         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4360                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
4361                                  BIT(NL80211_IFTYPE_P2P_GO) |
4362                                  BIT(NL80211_IFTYPE_AP);
4363
4364         if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4365                 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4366
4367         wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4368         if (adapter->config_bands & BAND_A)
4369                 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4370         else
4371                 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4372
4373         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4374                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4375         else if (adapter->is_hw_11ac_capable)
4376                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4377         else
4378                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4379         wiphy->n_iface_combinations = 1;
4380
4381         if (adapter->max_sta_conn > adapter->max_p2p_conn)
4382                 wiphy->max_ap_assoc_sta = adapter->max_sta_conn;
4383         else
4384                 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn;
4385
4386         /* Initialize cipher suits */
4387         wiphy->cipher_suites = mwifiex_cipher_suites;
4388         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4389
4390         if (adapter->regd) {
4391                 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4392                                            REGULATORY_DISABLE_BEACON_HINTS |
4393                                            REGULATORY_COUNTRY_IE_IGNORE;
4394                 wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4395         }
4396
4397         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4398         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4399         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4400                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4401                         WIPHY_FLAG_AP_UAPSD |
4402                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4403                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4404                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
4405
4406         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4407                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4408                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4409
4410 #ifdef CONFIG_PM
4411         if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4412                 wiphy->wowlan = &mwifiex_wowlan_support;
4413         else
4414                 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4415 #endif
4416
4417         wiphy->coalesce = &mwifiex_coalesce_support;
4418
4419         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4420                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4421                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4422
4423         wiphy->max_sched_scan_reqs = 1;
4424         wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4425         wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4426         wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4427
4428         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4429         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4430
4431         wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
4432                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
4433                            NL80211_FEATURE_NEED_OBSS_SCAN;
4434
4435         if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4436                 wiphy->features |= NL80211_FEATURE_HT_IBSS;
4437
4438         if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4439                 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4440                                    NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4441                                    NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4442
4443         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4444                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4445
4446         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4447                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4448
4449         /* Reserve space for mwifiex specific private data for BSS */
4450         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4451
4452         wiphy->reg_notifier = mwifiex_reg_notifier;
4453
4454         /* Set struct mwifiex_adapter pointer in wiphy_priv */
4455         wdev_priv = wiphy_priv(wiphy);
4456         *(unsigned long *)wdev_priv = (unsigned long)adapter;
4457
4458         set_wiphy_dev(wiphy, priv->adapter->dev);
4459
4460         ret = wiphy_register(wiphy);
4461         if (ret < 0) {
4462                 mwifiex_dbg(adapter, ERROR,
4463                             "%s: wiphy_register failed: %d\n", __func__, ret);
4464                 wiphy_free(wiphy);
4465                 return ret;
4466         }
4467
4468         if (!adapter->regd) {
4469                 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4470                         mwifiex_dbg(adapter, INFO,
4471                                     "driver hint alpha2: %2.2s\n", reg_alpha2);
4472                         regulatory_hint(wiphy, reg_alpha2);
4473                 } else {
4474                         if (adapter->region_code == 0x00) {
4475                                 mwifiex_dbg(adapter, WARN,
4476                                             "Ignore world regulatory domain\n");
4477                         } else {
4478                                 wiphy->regulatory_flags |=
4479                                         REGULATORY_DISABLE_BEACON_HINTS |
4480                                         REGULATORY_COUNTRY_IE_IGNORE;
4481                                 country_code =
4482                                         mwifiex_11d_code_2_region(
4483                                                 adapter->region_code);
4484                                 if (country_code &&
4485                                     regulatory_hint(wiphy, country_code))
4486                                         mwifiex_dbg(priv->adapter, ERROR,
4487                                                     "regulatory_hint() failed\n");
4488                         }
4489                 }
4490         }
4491
4492         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4493                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4494         wiphy->frag_threshold = thr;
4495         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4496                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4497         wiphy->rts_threshold = thr;
4498         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4499                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4500         wiphy->retry_short = (u8) retry;
4501         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4502                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4503         wiphy->retry_long = (u8) retry;
4504
4505         adapter->wiphy = wiphy;
4506         return ret;
4507 }