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

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22 #include "11n.h"
  23 #include "wmm.h"
  24
  25 static char *reg_alpha2;
  26 module_param(reg_alpha2, charp, 0);
  27
  28 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  29         {
  30                 .max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
  31                                    BIT(NL80211_IFTYPE_P2P_GO) |
  32                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
  33                                    BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination
  38 mwifiex_iface_comb_ap_sta = {
  39         .limits = mwifiex_ap_sta_limits,
  40         .num_different_channels = 1,
  41         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  42         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  43         .beacon_int_infra_match = true,
  44         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  45                                 BIT(NL80211_CHAN_WIDTH_20) |
  46                                 BIT(NL80211_CHAN_WIDTH_40),
  47 };
  48
  49 static const struct ieee80211_iface_combination
  50 mwifiex_iface_comb_ap_sta_vht = {
  51         .limits = mwifiex_ap_sta_limits,
  52         .num_different_channels = 1,
  53         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  54         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  55         .beacon_int_infra_match = true,
  56         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  57                                 BIT(NL80211_CHAN_WIDTH_20) |
  58                                 BIT(NL80211_CHAN_WIDTH_40) |
  59                                 BIT(NL80211_CHAN_WIDTH_80),
  60 };
  61
  62 static const struct
  63 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  64         .limits = mwifiex_ap_sta_limits,
  65         .num_different_channels = 2,
  66         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  67         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  68         .beacon_int_infra_match = true,
  69 };
  70
  71 /*
  72  * This function maps the nl802.11 channel type into driver channel type.
  73  *
  74  * The mapping is as follows -
  75  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  76  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  77  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  78  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  79  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80  */
  81 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  82 {
  83         switch (chan_type) {
  84         case NL80211_CHAN_NO_HT:
  85         case NL80211_CHAN_HT20:
  86                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  87         case NL80211_CHAN_HT40PLUS:
  88                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  89         case NL80211_CHAN_HT40MINUS:
  90                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  91         default:
  92                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  93         }
  94 }
  95
  96 /* This function maps IEEE HT secondary channel type to NL80211 channel type
  97  */
  98 u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
  99 {
 100         struct mwifiex_channel_band channel_band;
 101         int ret;
 102
 103         ret = mwifiex_get_chan_info(priv, &channel_band);
 104
 105         if (!ret) {
 106                 switch (channel_band.band_config.chan_width) {
 107                 case CHAN_BW_20MHZ:
 108                         if (IS_11N_ENABLED(priv))
 109                                 return NL80211_CHAN_HT20;
 110                         else
 111                                 return NL80211_CHAN_NO_HT;
 112                 case CHAN_BW_40MHZ:
 113                         if (channel_band.band_config.chan2_offset ==
 114                             SEC_CHAN_ABOVE)
 115                                 return NL80211_CHAN_HT40PLUS;
 116                         else
 117                                 return NL80211_CHAN_HT40MINUS;
 118                 default:
 119                         return NL80211_CHAN_HT20;
 120                 }
 121         }
 122
 123         return NL80211_CHAN_HT20;
 124 }
 125
 126 /*
 127  * This function checks whether WEP is set.
 128  */
 129 static int
 130 mwifiex_is_alg_wep(u32 cipher)
 131 {
 132         switch (cipher) {
 133         case WLAN_CIPHER_SUITE_WEP40:
 134         case WLAN_CIPHER_SUITE_WEP104:
 135                 return 1;
 136         default:
 137                 break;
 138         }
 139
 140         return 0;
 141 }
 142
 143 /*
 144  * This function retrieves the private structure from kernel wiphy structure.
 145  */
 146 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 147 {
 148         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 149 }
 150
 151 /*
 152  * CFG802.11 operation handler to delete a network key.
 153  */
 154 static int
 155 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 156                          u8 key_index, bool pairwise, const u8 *mac_addr)
 157 {
 158         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 159         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 160         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 161
 162         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 163                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 164                 return -EFAULT;
 165         }
 166
 167         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 168         return 0;
 169 }
 170
 171 /*
 172  * This function forms an skb for management frame.
 173  */
 174 static int
 175 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 176 {
 177         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 178         u16 pkt_len;
 179         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 180
 181         pkt_len = len + ETH_ALEN;
 182
 183         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 184                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 185         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 186
 187         memcpy(skb_push(skb, sizeof(tx_control)),
 188                &tx_control, sizeof(tx_control));
 189
 190         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 191
 192         /* Add packet data and address4 */
 193         skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
 194         skb_put_data(skb, addr, ETH_ALEN);
 195         skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
 196                      len - sizeof(struct ieee80211_hdr_3addr));
 197
 198         skb->priority = LOW_PRIO_TID;
 199         __net_timestamp(skb);
 200
 201         return 0;
 202 }
 203
 204 /*
 205  * CFG802.11 operation handler to transmit a management frame.
 206  */
 207 static int
 208 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 209                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 210 {
 211         const u8 *buf = params->buf;
 212         size_t len = params->len;
 213         struct sk_buff *skb;
 214         u16 pkt_len;
 215         const struct ieee80211_mgmt *mgmt;
 216         struct mwifiex_txinfo *tx_info;
 217         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 218
 219         if (!buf || !len) {
 220                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 221                 return -EFAULT;
 222         }
 223
 224         mgmt = (const struct ieee80211_mgmt *)buf;
 225         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 226             ieee80211_is_probe_resp(mgmt->frame_control)) {
 227                 /* Since we support offload probe resp, we need to skip probe
 228                  * resp in AP or GO mode */
 229                 mwifiex_dbg(priv->adapter, INFO,
 230                             "info: skip to send probe resp in AP or GO mode\n");
 231                 return 0;
 232         }
 233
 234         pkt_len = len + ETH_ALEN;
 235         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 236                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 237                             pkt_len + sizeof(pkt_len));
 238
 239         if (!skb) {
 240                 mwifiex_dbg(priv->adapter, ERROR,
 241                             "allocate skb failed for management frame\n");
 242                 return -ENOMEM;
 243         }
 244
 245         tx_info = MWIFIEX_SKB_TXCB(skb);
 246         memset(tx_info, 0, sizeof(*tx_info));
 247         tx_info->bss_num = priv->bss_num;
 248         tx_info->bss_type = priv->bss_type;
 249         tx_info->pkt_len = pkt_len;
 250
 251         mwifiex_form_mgmt_frame(skb, buf, len);
 252         *cookie = prandom_u32() | 1;
 253
 254         if (ieee80211_is_action(mgmt->frame_control))
 255                 skb = mwifiex_clone_skb_for_tx_status(priv,
 256                                                       skb,
 257                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 258         else
 259                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 260                                         GFP_ATOMIC);
 261
 262         mwifiex_queue_tx_pkt(priv, skb);
 263
 264         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 265         return 0;
 266 }
 267
 268 /*
 269  * CFG802.11 operation handler to register a mgmt frame.
 270  */
 271 static void
 272 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 273                                      struct wireless_dev *wdev,
 274                                      u16 frame_type, bool reg)
 275 {
 276         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 277         u32 mask;
 278
 279         if (reg)
 280                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 281         else
 282                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 283
 284         if (mask != priv->mgmt_frame_mask) {
 285                 priv->mgmt_frame_mask = mask;
 286                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 287                                  HostCmd_ACT_GEN_SET, 0,
 288                                  &priv->mgmt_frame_mask, false);
 289                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 290         }
 291 }
 292
 293 /*
 294  * CFG802.11 operation handler to remain on channel.
 295  */
 296 static int
 297 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 298                                    struct wireless_dev *wdev,
 299                                    struct ieee80211_channel *chan,
 300                                    unsigned int duration, u64 *cookie)
 301 {
 302         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 303         int ret;
 304
 305         if (!chan || !cookie) {
 306                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 307                 return -EINVAL;
 308         }
 309
 310         if (priv->roc_cfg.cookie) {
 311                 mwifiex_dbg(priv->adapter, INFO,
 312                             "info: ongoing ROC, cookie = 0x%llx\n",
 313                             priv->roc_cfg.cookie);
 314                 return -EBUSY;
 315         }
 316
 317         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 318                                          duration);
 319
 320         if (!ret) {
 321                 *cookie = prandom_u32() | 1;
 322                 priv->roc_cfg.cookie = *cookie;
 323                 priv->roc_cfg.chan = *chan;
 324
 325                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 326                                           duration, GFP_ATOMIC);
 327
 328                 mwifiex_dbg(priv->adapter, INFO,
 329                             "info: ROC, cookie = 0x%llx\n", *cookie);
 330         }
 331
 332         return ret;
 333 }
 334
 335 /*
 336  * CFG802.11 operation handler to cancel remain on channel.
 337  */
 338 static int
 339 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 340                                           struct wireless_dev *wdev, u64 cookie)
 341 {
 342         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 343         int ret;
 344
 345         if (cookie != priv->roc_cfg.cookie)
 346                 return -ENOENT;
 347
 348         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 349                                          &priv->roc_cfg.chan, 0);
 350
 351         if (!ret) {
 352                 cfg80211_remain_on_channel_expired(wdev, cookie,
 353                                                    &priv->roc_cfg.chan,
 354                                                    GFP_ATOMIC);
 355
 356                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 357
 358                 mwifiex_dbg(priv->adapter, INFO,
 359                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
 360         }
 361
 362         return ret;
 363 }
 364
 365 /*
 366  * CFG802.11 operation handler to set Tx power.
 367  */
 368 static int
 369 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 370                               struct wireless_dev *wdev,
 371                               enum nl80211_tx_power_setting type,
 372                               int mbm)
 373 {
 374         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 375         struct mwifiex_private *priv;
 376         struct mwifiex_power_cfg power_cfg;
 377         int dbm = MBM_TO_DBM(mbm);
 378
 379         if (type == NL80211_TX_POWER_FIXED) {
 380                 power_cfg.is_power_auto = 0;
 381                 power_cfg.power_level = dbm;
 382         } else {
 383                 power_cfg.is_power_auto = 1;
 384         }
 385
 386         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 387
 388         return mwifiex_set_tx_power(priv, &power_cfg);
 389 }
 390
 391 /*
 392  * CFG802.11 operation handler to get Tx power.
 393  */
 394 static int
 395 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 396                               struct wireless_dev *wdev,
 397                               int *dbm)
 398 {
 399         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 400         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 401                                                         MWIFIEX_BSS_ROLE_ANY);
 402         int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 403                                    HostCmd_ACT_GEN_GET, 0, NULL, true);
 404
 405         if (ret < 0)
 406                 return ret;
 407
 408         /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 409         *dbm = priv->tx_power_level;
 410
 411         return 0;
 412 }
 413
 414 /*
 415  * CFG802.11 operation handler to set Power Save option.
 416  *
 417  * The timeout value, if provided, is currently ignored.
 418  */
 419 static int
 420 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 421                                 struct net_device *dev,
 422                                 bool enabled, int timeout)
 423 {
 424         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 425         u32 ps_mode;
 426
 427         if (timeout)
 428                 mwifiex_dbg(priv->adapter, INFO,
 429                             "info: ignore timeout value for IEEE Power Save\n");
 430
 431         ps_mode = enabled;
 432
 433         return mwifiex_drv_set_power(priv, &ps_mode);
 434 }
 435
 436 /*
 437  * CFG802.11 operation handler to set the default network key.
 438  */
 439 static int
 440 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 441                                  u8 key_index, bool unicast,
 442                                  bool multicast)
 443 {
 444         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 445
 446         /* Return if WEP key not configured */
 447         if (!priv->sec_info.wep_enabled)
 448                 return 0;
 449
 450         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 451                 priv->wep_key_curr_index = key_index;
 452         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 453                                       NULL, 0)) {
 454                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 455                 return -EFAULT;
 456         }
 457
 458         return 0;
 459 }
 460
 461 /*
 462  * CFG802.11 operation handler to add a network key.
 463  */
 464 static int
 465 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 466                          u8 key_index, bool pairwise, const u8 *mac_addr,
 467                          struct key_params *params)
 468 {
 469         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 470         struct mwifiex_wep_key *wep_key;
 471         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 472         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 473
 474         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 475             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 476              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 477                 if (params->key && params->key_len) {
 478                         wep_key = &priv->wep_key[key_index];
 479                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 480                         memcpy(wep_key->key_material, params->key,
 481                                params->key_len);
 482                         wep_key->key_index = key_index;
 483                         wep_key->key_length = params->key_len;
 484                         priv->sec_info.wep_enabled = 1;
 485                 }
 486                 return 0;
 487         }
 488
 489         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 490                                key_index, peer_mac, 0)) {
 491                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 492                 return -EFAULT;
 493         }
 494
 495         return 0;
 496 }
 497
 498 /*
 499  * CFG802.11 operation handler to set default mgmt key.
 500  */
 501 static int
 502 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
 503                                       struct net_device *netdev,
 504                                       u8 key_index)
 505 {
 506         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 507         struct mwifiex_ds_encrypt_key encrypt_key;
 508
 509         wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
 510
 511         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 512         encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
 513         encrypt_key.key_index = key_index;
 514         encrypt_key.is_igtk_def_key = true;
 515         eth_broadcast_addr(encrypt_key.mac_addr);
 516
 517         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 518                                 HostCmd_ACT_GEN_SET, true, &encrypt_key, true);
 519 }
 520
 521 /*
 522  * This function sends domain information to the firmware.
 523  *
 524  * The following information are passed to the firmware -
 525  *      - Country codes
 526  *      - Sub bands (first channel, number of channels, maximum Tx power)
 527  */
 528 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 529 {
 530         u8 no_of_triplet = 0;
 531         struct ieee80211_country_ie_triplet *t;
 532         u8 no_of_parsed_chan = 0;
 533         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 534         u8 i, flag = 0;
 535         enum nl80211_band band;
 536         struct ieee80211_supported_band *sband;
 537         struct ieee80211_channel *ch;
 538         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 539         struct mwifiex_private *priv;
 540         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 541
 542         /* Set country code */
 543         domain_info->country_code[0] = adapter->country_code[0];
 544         domain_info->country_code[1] = adapter->country_code[1];
 545         domain_info->country_code[2] = ' ';
 546
 547         band = mwifiex_band_to_radio_type(adapter->config_bands);
 548         if (!wiphy->bands[band]) {
 549                 mwifiex_dbg(adapter, ERROR,
 550                             "11D: setting domain info in FW\n");
 551                 return -1;
 552         }
 553
 554         sband = wiphy->bands[band];
 555
 556         for (i = 0; i < sband->n_channels ; i++) {
 557                 ch = &sband->channels[i];
 558                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 559                         continue;
 560
 561                 if (!flag) {
 562                         flag = 1;
 563                         first_chan = (u32) ch->hw_value;
 564                         next_chan = first_chan;
 565                         max_pwr = ch->max_power;
 566                         no_of_parsed_chan = 1;
 567                         continue;
 568                 }
 569
 570                 if (ch->hw_value == next_chan + 1 &&
 571                     ch->max_power == max_pwr) {
 572                         next_chan++;
 573                         no_of_parsed_chan++;
 574                 } else {
 575                         t = &domain_info->triplet[no_of_triplet];
 576                         t->chans.first_channel = first_chan;
 577                         t->chans.num_channels = no_of_parsed_chan;
 578                         t->chans.max_power = max_pwr;
 579                         no_of_triplet++;
 580                         first_chan = (u32) ch->hw_value;
 581                         next_chan = first_chan;
 582                         max_pwr = ch->max_power;
 583                         no_of_parsed_chan = 1;
 584                 }
 585         }
 586
 587         if (flag) {
 588                 t = &domain_info->triplet[no_of_triplet];
 589                 t->chans.first_channel = first_chan;
 590                 t->chans.num_channels = no_of_parsed_chan;
 591                 t->chans.max_power = max_pwr;
 592                 no_of_triplet++;
 593         }
 594
 595         domain_info->no_of_triplet = no_of_triplet;
 596
 597         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 598
 599         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 600                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 601                 mwifiex_dbg(adapter, INFO,
 602                             "11D: setting domain info in FW\n");
 603                 return -1;
 604         }
 605
 606         return 0;
 607 }
 608
 609 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
 610 {
 611         struct ieee80211_supported_band *sband;
 612         struct ieee80211_channel *chan;
 613         unsigned int i;
 614
 615         if (!wiphy->bands[NL80211_BAND_5GHZ])
 616                 return;
 617         sband = wiphy->bands[NL80211_BAND_5GHZ];
 618
 619         for (i = 0; i < sband->n_channels; i++) {
 620                 chan = &sband->channels[i];
 621                 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
 622                     (chan->flags & IEEE80211_CHAN_RADAR))
 623                         chan->flags |= IEEE80211_CHAN_NO_IR;
 624         }
 625 }
 626
 627 /*
 628  * CFG802.11 regulatory domain callback function.
 629  *
 630  * This function is called when the regulatory domain is changed due to the
 631  * following reasons -
 632  *      - Set by driver
 633  *      - Set by system core
 634  *      - Set by user
 635  *      - Set bt Country IE
 636  */
 637 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 638                                  struct regulatory_request *request)
 639 {
 640         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 641         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 642                                                         MWIFIEX_BSS_ROLE_ANY);
 643         mwifiex_dbg(adapter, INFO,
 644                     "info: cfg80211 regulatory domain callback for %c%c\n",
 645                     request->alpha2[0], request->alpha2[1]);
 646         mwifiex_reg_apply_radar_flags(wiphy);
 647
 648         switch (request->initiator) {
 649         case NL80211_REGDOM_SET_BY_DRIVER:
 650         case NL80211_REGDOM_SET_BY_CORE:
 651         case NL80211_REGDOM_SET_BY_USER:
 652         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 653                 break;
 654         default:
 655                 mwifiex_dbg(adapter, ERROR,
 656                             "unknown regdom initiator: %d\n",
 657                             request->initiator);
 658                 return;
 659         }
 660
 661         /* Don't send world or same regdom info to firmware */
 662         if (strncmp(request->alpha2, "00", 2) &&
 663             strncmp(request->alpha2, adapter->country_code,
 664                     sizeof(request->alpha2))) {
 665                 memcpy(adapter->country_code, request->alpha2,
 666                        sizeof(request->alpha2));
 667                 mwifiex_send_domain_info_cmd_fw(wiphy);
 668                 mwifiex_dnld_txpwr_table(priv);
 669         }
 670 }
 671
 672 /*
 673  * This function sets the fragmentation threshold.
 674  *
 675  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 676  * and MWIFIEX_FRAG_MAX_VALUE.
 677  */
 678 static int
 679 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 680 {
 681         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 682             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 683                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 684
 685         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 686                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 687                                 &frag_thr, true);
 688 }
 689
 690 /*
 691  * This function sets the RTS threshold.
 692
 693  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 694  * and MWIFIEX_RTS_MAX_VALUE.
 695  */
 696 static int
 697 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 698 {
 699         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 700                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 701
 702         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 703                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 704                                 &rts_thr, true);
 705 }
 706
 707 /*
 708  * CFG802.11 operation handler to set wiphy parameters.
 709  *
 710  * This function can be used to set the RTS threshold and the
 711  * Fragmentation threshold of the driver.
 712  */
 713 static int
 714 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 715 {
 716         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 717         struct mwifiex_private *priv;
 718         struct mwifiex_uap_bss_param *bss_cfg;
 719         int ret;
 720
 721         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 722
 723         switch (priv->bss_role) {
 724         case MWIFIEX_BSS_ROLE_UAP:
 725                 if (priv->bss_started) {
 726                         mwifiex_dbg(adapter, ERROR,
 727                                     "cannot change wiphy params when bss started");
 728                         return -EINVAL;
 729                 }
 730
 731                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 732                 if (!bss_cfg)
 733                         return -ENOMEM;
 734
 735                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 736
 737                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 738                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 739                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 740                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 741                 if (changed & WIPHY_PARAM_RETRY_LONG)
 742                         bss_cfg->retry_limit = wiphy->retry_long;
 743
 744                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 745                                        HostCmd_ACT_GEN_SET,
 746                                        UAP_BSS_PARAMS_I, bss_cfg,
 747                                        false);
 748
 749                 kfree(bss_cfg);
 750                 if (ret) {
 751                         mwifiex_dbg(adapter, ERROR,
 752                                     "Failed to set wiphy phy params\n");
 753                         return ret;
 754                 }
 755                 break;
 756
 757         case MWIFIEX_BSS_ROLE_STA:
 758                 if (priv->media_connected) {
 759                         mwifiex_dbg(adapter, ERROR,
 760                                     "cannot change wiphy params when connected");
 761                         return -EINVAL;
 762                 }
 763                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 764                         ret = mwifiex_set_rts(priv,
 765                                               wiphy->rts_threshold);
 766                         if (ret)
 767                                 return ret;
 768                 }
 769                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 770                         ret = mwifiex_set_frag(priv,
 771                                                wiphy->frag_threshold);
 772                         if (ret)
 773                                 return ret;
 774                 }
 775                 break;
 776         }
 777
 778         return 0;
 779 }
 780
 781 static int
 782 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 783 {
 784         u16 mode = P2P_MODE_DISABLE;
 785
 786         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 787                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 788                 return -1;
 789
 790         return 0;
 791 }
 792
 793 /*
 794  * This function initializes the functionalities for P2P client.
 795  * The P2P client initialization sequence is:
 796  * disable -> device -> client
 797  */
 798 static int
 799 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 800 {
 801         u16 mode;
 802
 803         if (mwifiex_cfg80211_deinit_p2p(priv))
 804                 return -1;
 805
 806         mode = P2P_MODE_DEVICE;
 807         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 808                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 809                 return -1;
 810
 811         mode = P2P_MODE_CLIENT;
 812         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 813                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 814                 return -1;
 815
 816         return 0;
 817 }
 818
 819 /*
 820  * This function initializes the functionalities for P2P GO.
 821  * The P2P GO initialization sequence is:
 822  * disable -> device -> GO
 823  */
 824 static int
 825 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 826 {
 827         u16 mode;
 828
 829         if (mwifiex_cfg80211_deinit_p2p(priv))
 830                 return -1;
 831
 832         mode = P2P_MODE_DEVICE;
 833         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 834                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 835                 return -1;
 836
 837         mode = P2P_MODE_GO;
 838         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 839                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 840                 return -1;
 841
 842         return 0;
 843 }
 844
 845 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 846 {
 847         struct mwifiex_adapter *adapter = priv->adapter;
 848         unsigned long flags;
 849
 850         priv->mgmt_frame_mask = 0;
 851         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 852                              HostCmd_ACT_GEN_SET, 0,
 853                              &priv->mgmt_frame_mask, false)) {
 854                 mwifiex_dbg(adapter, ERROR,
 855                             "could not unregister mgmt frame rx\n");
 856                 return -1;
 857         }
 858
 859         mwifiex_deauthenticate(priv, NULL);
 860
 861         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 862         adapter->main_locked = true;
 863         if (adapter->mwifiex_processing) {
 864                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 865                 flush_workqueue(adapter->workqueue);
 866         } else {
 867                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 868         }
 869
 870         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 871         adapter->rx_locked = true;
 872         if (adapter->rx_processing) {
 873                 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 874                 flush_workqueue(adapter->rx_workqueue);
 875         } else {
 876         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 877         }
 878
 879         mwifiex_free_priv(priv);
 880         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 881         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 882         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 883
 884         return 0;
 885 }
 886
 887 static int
 888 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 889                              struct net_device *dev,
 890                              enum nl80211_iftype type)
 891 {
 892         struct mwifiex_adapter *adapter = priv->adapter;
 893         unsigned long flags;
 894
 895         mwifiex_init_priv(priv);
 896
 897         priv->bss_mode = type;
 898         priv->wdev.iftype = type;
 899
 900         mwifiex_init_priv_params(priv, priv->netdev);
 901         priv->bss_started = 0;
 902
 903         switch (type) {
 904         case NL80211_IFTYPE_STATION:
 905         case NL80211_IFTYPE_ADHOC:
 906                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 907                 break;
 908         case NL80211_IFTYPE_P2P_CLIENT:
 909                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 910                 break;
 911         case NL80211_IFTYPE_P2P_GO:
 912                 priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 913                 break;
 914         case NL80211_IFTYPE_AP:
 915                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 916                 break;
 917         default:
 918                 mwifiex_dbg(adapter, ERROR,
 919                             "%s: changing to %d not supported\n",
 920                             dev->name, type);
 921                 return -EOPNOTSUPP;
 922         }
 923
 924         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 925         adapter->main_locked = false;
 926         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 927
 928         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 929         adapter->rx_locked = false;
 930         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 931
 932         mwifiex_set_mac_address(priv, dev, false, NULL);
 933
 934         return 0;
 935 }
 936
 937 static int
 938 mwifiex_change_vif_to_p2p(struct net_device *dev,
 939                           enum nl80211_iftype curr_iftype,
 940                           enum nl80211_iftype type,
 941                           struct vif_params *params)
 942 {
 943         struct mwifiex_private *priv;
 944         struct mwifiex_adapter *adapter;
 945
 946         priv = mwifiex_netdev_get_priv(dev);
 947
 948         if (!priv)
 949                 return -1;
 950
 951         adapter = priv->adapter;
 952
 953         if (adapter->curr_iface_comb.p2p_intf ==
 954             adapter->iface_limit.p2p_intf) {
 955                 mwifiex_dbg(adapter, ERROR,
 956                             "cannot create multiple P2P ifaces\n");
 957                 return -1;
 958         }
 959
 960         mwifiex_dbg(adapter, INFO,
 961                     "%s: changing role to p2p\n", dev->name);
 962
 963         if (mwifiex_deinit_priv_params(priv))
 964                 return -1;
 965         if (mwifiex_init_new_priv_params(priv, dev, type))
 966                 return -1;
 967
 968         switch (type) {
 969         case NL80211_IFTYPE_P2P_CLIENT:
 970                 if (mwifiex_cfg80211_init_p2p_client(priv))
 971                         return -EFAULT;
 972                 break;
 973         case NL80211_IFTYPE_P2P_GO:
 974                 if (mwifiex_cfg80211_init_p2p_go(priv))
 975                         return -EFAULT;
 976                 break;
 977         default:
 978                 mwifiex_dbg(adapter, ERROR,
 979                             "%s: changing to %d not supported\n",
 980                             dev->name, type);
 981                 return -EOPNOTSUPP;
 982         }
 983
 984         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 985                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 986                 return -1;
 987
 988         if (mwifiex_sta_init_cmd(priv, false, false))
 989                 return -1;
 990
 991         switch (curr_iftype) {
 992         case NL80211_IFTYPE_STATION:
 993         case NL80211_IFTYPE_ADHOC:
 994                 adapter->curr_iface_comb.sta_intf--;
 995                 break;
 996         case NL80211_IFTYPE_AP:
 997                 adapter->curr_iface_comb.uap_intf--;
 998                 break;
 999         default:
1000                 break;
1001         }
1002
1003         adapter->curr_iface_comb.p2p_intf++;
1004         dev->ieee80211_ptr->iftype = type;
1005
1006         return 0;
1007 }
1008
1009 static int
1010 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1011                                 enum nl80211_iftype curr_iftype,
1012                                 enum nl80211_iftype type,
1013                                 struct vif_params *params)
1014 {
1015         struct mwifiex_private *priv;
1016         struct mwifiex_adapter *adapter;
1017
1018         priv = mwifiex_netdev_get_priv(dev);
1019
1020         if (!priv)
1021                 return -1;
1022
1023         adapter = priv->adapter;
1024
1025         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
1026              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
1027             (adapter->curr_iface_comb.sta_intf ==
1028              adapter->iface_limit.sta_intf)) {
1029                 mwifiex_dbg(adapter, ERROR,
1030                             "cannot create multiple station/adhoc ifaces\n");
1031                 return -1;
1032         }
1033
1034         if (type == NL80211_IFTYPE_STATION)
1035                 mwifiex_dbg(adapter, INFO,
1036                             "%s: changing role to station\n", dev->name);
1037         else
1038                 mwifiex_dbg(adapter, INFO,
1039                             "%s: changing role to adhoc\n", dev->name);
1040
1041         if (mwifiex_deinit_priv_params(priv))
1042                 return -1;
1043         if (mwifiex_init_new_priv_params(priv, dev, type))
1044                 return -1;
1045         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1046                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1047                 return -1;
1048         if (mwifiex_sta_init_cmd(priv, false, false))
1049                 return -1;
1050
1051         switch (curr_iftype) {
1052         case NL80211_IFTYPE_P2P_CLIENT:
1053         case NL80211_IFTYPE_P2P_GO:
1054                 adapter->curr_iface_comb.p2p_intf--;
1055                 break;
1056         case NL80211_IFTYPE_AP:
1057                 adapter->curr_iface_comb.uap_intf--;
1058                 break;
1059         default:
1060                 break;
1061         }
1062
1063         adapter->curr_iface_comb.sta_intf++;
1064         dev->ieee80211_ptr->iftype = type;
1065         return 0;
1066 }
1067
1068 static int
1069 mwifiex_change_vif_to_ap(struct net_device *dev,
1070                          enum nl80211_iftype curr_iftype,
1071                          enum nl80211_iftype type,
1072                          struct vif_params *params)
1073 {
1074         struct mwifiex_private *priv;
1075         struct mwifiex_adapter *adapter;
1076
1077         priv = mwifiex_netdev_get_priv(dev);
1078
1079         if (!priv)
1080                 return -1;
1081
1082         adapter = priv->adapter;
1083
1084         if (adapter->curr_iface_comb.uap_intf ==
1085             adapter->iface_limit.uap_intf) {
1086                 mwifiex_dbg(adapter, ERROR,
1087                             "cannot create multiple AP ifaces\n");
1088                 return -1;
1089         }
1090
1091         mwifiex_dbg(adapter, INFO,
1092                     "%s: changing role to AP\n", dev->name);
1093
1094         if (mwifiex_deinit_priv_params(priv))
1095                 return -1;
1096         if (mwifiex_init_new_priv_params(priv, dev, type))
1097                 return -1;
1098         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1099                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1100                 return -1;
1101         if (mwifiex_sta_init_cmd(priv, false, false))
1102                 return -1;
1103
1104         switch (curr_iftype) {
1105         case NL80211_IFTYPE_P2P_CLIENT:
1106         case NL80211_IFTYPE_P2P_GO:
1107                 adapter->curr_iface_comb.p2p_intf--;
1108                 break;
1109         case NL80211_IFTYPE_STATION:
1110         case NL80211_IFTYPE_ADHOC:
1111                 adapter->curr_iface_comb.sta_intf--;
1112                 break;
1113         default:
1114                 break;
1115         }
1116
1117         adapter->curr_iface_comb.uap_intf++;
1118         dev->ieee80211_ptr->iftype = type;
1119         return 0;
1120 }
1121 /*
1122  * CFG802.11 operation handler to change interface type.
1123  */
1124 static int
1125 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1126                                      struct net_device *dev,
1127                                      enum nl80211_iftype type,
1128                                      struct vif_params *params)
1129 {
1130         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1131         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1132
1133         if (priv->scan_request) {
1134                 mwifiex_dbg(priv->adapter, ERROR,
1135                             "change virtual interface: scan in process\n");
1136                 return -EBUSY;
1137         }
1138
1139         switch (curr_iftype) {
1140         case NL80211_IFTYPE_ADHOC:
1141                 switch (type) {
1142                 case NL80211_IFTYPE_STATION:
1143                         priv->bss_mode = type;
1144                         priv->sec_info.authentication_mode =
1145                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1146                         dev->ieee80211_ptr->iftype = type;
1147                         mwifiex_deauthenticate(priv, NULL);
1148                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1149                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1150                                                 true);
1151                 case NL80211_IFTYPE_P2P_CLIENT:
1152                 case NL80211_IFTYPE_P2P_GO:
1153                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1154                                                          type, params);
1155                 case NL80211_IFTYPE_AP:
1156                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1157                                                         params);
1158                 case NL80211_IFTYPE_UNSPECIFIED:
1159                         mwifiex_dbg(priv->adapter, INFO,
1160                                     "%s: kept type as IBSS\n", dev->name);
1161                         /* fall through */
1162                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1163                         return 0;
1164                 default:
1165                         mwifiex_dbg(priv->adapter, ERROR,
1166                                     "%s: changing to %d not supported\n",
1167                                     dev->name, type);
1168                         return -EOPNOTSUPP;
1169                 }
1170                 break;
1171         case NL80211_IFTYPE_STATION:
1172                 switch (type) {
1173                 case NL80211_IFTYPE_ADHOC:
1174                         priv->bss_mode = type;
1175                         priv->sec_info.authentication_mode =
1176                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1177                         dev->ieee80211_ptr->iftype = type;
1178                         mwifiex_deauthenticate(priv, NULL);
1179                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1180                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1181                                                 true);
1182                 case NL80211_IFTYPE_P2P_CLIENT:
1183                 case NL80211_IFTYPE_P2P_GO:
1184                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1185                                                          type, params);
1186                 case NL80211_IFTYPE_AP:
1187                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1188                                                         params);
1189                 case NL80211_IFTYPE_UNSPECIFIED:
1190                         mwifiex_dbg(priv->adapter, INFO,
1191                                     "%s: kept type as STA\n", dev->name);
1192                         /* fall through */
1193                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1194                         return 0;
1195                 default:
1196                         mwifiex_dbg(priv->adapter, ERROR,
1197                                     "%s: changing to %d not supported\n",
1198                                     dev->name, type);
1199                         return -EOPNOTSUPP;
1200                 }
1201                 break;
1202         case NL80211_IFTYPE_AP:
1203                 switch (type) {
1204                 case NL80211_IFTYPE_ADHOC:
1205                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1206                                                                type, params);
1207                         break;
1208                 case NL80211_IFTYPE_P2P_CLIENT:
1209                 case NL80211_IFTYPE_P2P_GO:
1210                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1211                                                          type, params);
1212                 case NL80211_IFTYPE_UNSPECIFIED:
1213                         mwifiex_dbg(priv->adapter, INFO,
1214                                     "%s: kept type as AP\n", dev->name);
1215                         /* fall through */
1216                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1217                         return 0;
1218                 default:
1219                         mwifiex_dbg(priv->adapter, ERROR,
1220                                     "%s: changing to %d not supported\n",
1221                                     dev->name, type);
1222                         return -EOPNOTSUPP;
1223                 }
1224                 break;
1225         case NL80211_IFTYPE_P2P_CLIENT:
1226         case NL80211_IFTYPE_P2P_GO:
1227                 switch (type) {
1228                 case NL80211_IFTYPE_STATION:
1229                         if (mwifiex_cfg80211_deinit_p2p(priv))
1230                                 return -EFAULT;
1231                         priv->adapter->curr_iface_comb.p2p_intf--;
1232                         priv->adapter->curr_iface_comb.sta_intf++;
1233                         dev->ieee80211_ptr->iftype = type;
1234                         if (mwifiex_deinit_priv_params(priv))
1235                                 return -1;
1236                         if (mwifiex_init_new_priv_params(priv, dev, type))
1237                                 return -1;
1238                         if (mwifiex_sta_init_cmd(priv, false, false))
1239                                 return -1;
1240                         break;
1241                 case NL80211_IFTYPE_ADHOC:
1242                         if (mwifiex_cfg80211_deinit_p2p(priv))
1243                                 return -EFAULT;
1244                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1245                                                                type, params);
1246                         break;
1247                 case NL80211_IFTYPE_AP:
1248                         if (mwifiex_cfg80211_deinit_p2p(priv))
1249                                 return -EFAULT;
1250                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1251                                                         params);
1252                 case NL80211_IFTYPE_UNSPECIFIED:
1253                         mwifiex_dbg(priv->adapter, INFO,
1254                                     "%s: kept type as P2P\n", dev->name);
1255                         /* fall through */
1256                 case NL80211_IFTYPE_P2P_CLIENT:
1257                 case NL80211_IFTYPE_P2P_GO:
1258                         return 0;
1259                 default:
1260                         mwifiex_dbg(priv->adapter, ERROR,
1261                                     "%s: changing to %d not supported\n",
1262                                     dev->name, type);
1263                         return -EOPNOTSUPP;
1264                 }
1265                 break;
1266         default:
1267                 mwifiex_dbg(priv->adapter, ERROR,
1268                             "%s: unknown iftype: %d\n",
1269                             dev->name, dev->ieee80211_ptr->iftype);
1270                 return -EOPNOTSUPP;
1271         }
1272
1273
1274         return 0;
1275 }
1276
1277 static void
1278 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1279                      struct rate_info *rate)
1280 {
1281         struct mwifiex_adapter *adapter = priv->adapter;
1282
1283         if (adapter->is_hw_11ac_capable) {
1284                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1285                 if (tx_htinfo & BIT(0)) {
1286                         /* HT */
1287                         rate->mcs = priv->tx_rate;
1288                         rate->flags |= RATE_INFO_FLAGS_MCS;
1289                 }
1290                 if (tx_htinfo & BIT(1)) {
1291                         /* VHT */
1292                         rate->mcs = priv->tx_rate & 0x0F;
1293                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1294                 }
1295
1296                 if (tx_htinfo & (BIT(1) | BIT(0))) {
1297                         /* HT or VHT */
1298                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
1299                         case 0:
1300                                 rate->bw = RATE_INFO_BW_20;
1301                                 break;
1302                         case (BIT(2)):
1303                                 rate->bw = RATE_INFO_BW_40;
1304                                 break;
1305                         case (BIT(3)):
1306                                 rate->bw = RATE_INFO_BW_80;
1307                                 break;
1308                         case (BIT(3) | BIT(2)):
1309                                 rate->bw = RATE_INFO_BW_160;
1310                                 break;
1311                         }
1312
1313                         if (tx_htinfo & BIT(4))
1314                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1315
1316                         if ((priv->tx_rate >> 4) == 1)
1317                                 rate->nss = 2;
1318                         else
1319                                 rate->nss = 1;
1320                 }
1321         } else {
1322                 /*
1323                  * Bit 0 in tx_htinfo indicates that current Tx rate
1324                  * is 11n rate. Valid MCS index values for us are 0 to 15.
1325                  */
1326                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1327                         rate->mcs = priv->tx_rate;
1328                         rate->flags |= RATE_INFO_FLAGS_MCS;
1329                         rate->bw = RATE_INFO_BW_20;
1330                         if (tx_htinfo & BIT(1))
1331                                 rate->bw = RATE_INFO_BW_40;
1332                         if (tx_htinfo & BIT(2))
1333                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1334                 }
1335         }
1336 }
1337
1338 /*
1339  * This function dumps the station information on a buffer.
1340  *
1341  * The following information are shown -
1342  *      - Total bytes transmitted
1343  *      - Total bytes received
1344  *      - Total packets transmitted
1345  *      - Total packets received
1346  *      - Signal quality level
1347  *      - Transmission rate
1348  */
1349 static int
1350 mwifiex_dump_station_info(struct mwifiex_private *priv,
1351                           struct mwifiex_sta_node *node,
1352                           struct station_info *sinfo)
1353 {
1354         u32 rate;
1355
1356         sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1357                         BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1358                         BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1359                         BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1360
1361         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1362                 if (!node)
1363                         return -ENOENT;
1364
1365                 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1366                                 BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1367                 sinfo->inactive_time =
1368                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1369
1370                 sinfo->signal = node->stats.rssi;
1371                 sinfo->signal_avg = node->stats.rssi;
1372                 sinfo->rx_bytes = node->stats.rx_bytes;
1373                 sinfo->tx_bytes = node->stats.tx_bytes;
1374                 sinfo->rx_packets = node->stats.rx_packets;
1375                 sinfo->tx_packets = node->stats.tx_packets;
1376                 sinfo->tx_failed = node->stats.tx_failed;
1377
1378                 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1379                                      &sinfo->txrate);
1380                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1381
1382                 return 0;
1383         }
1384
1385         /* Get signal information from the firmware */
1386         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1387                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1388                 mwifiex_dbg(priv->adapter, ERROR,
1389                             "failed to get signal information\n");
1390                 return -EFAULT;
1391         }
1392
1393         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1394                 mwifiex_dbg(priv->adapter, ERROR,
1395                             "getting data rate error\n");
1396                 return -EFAULT;
1397         }
1398
1399         /* Get DTIM period information from firmware */
1400         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1401                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1402                          &priv->dtim_period, true);
1403
1404         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1405
1406         sinfo->signal_avg = priv->bcn_rssi_avg;
1407         sinfo->rx_bytes = priv->stats.rx_bytes;
1408         sinfo->tx_bytes = priv->stats.tx_bytes;
1409         sinfo->rx_packets = priv->stats.rx_packets;
1410         sinfo->tx_packets = priv->stats.tx_packets;
1411         sinfo->signal = priv->bcn_rssi_avg;
1412         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1413         sinfo->txrate.legacy = rate * 5;
1414
1415         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1416                 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1417                 sinfo->bss_param.flags = 0;
1418                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1419                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1420                         sinfo->bss_param.flags |=
1421                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1422                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1423                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1424                         sinfo->bss_param.flags |=
1425                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1426                 sinfo->bss_param.dtim_period = priv->dtim_period;
1427                 sinfo->bss_param.beacon_interval =
1428                         priv->curr_bss_params.bss_descriptor.beacon_period;
1429         }
1430
1431         return 0;
1432 }
1433
1434 /*
1435  * CFG802.11 operation handler to get station information.
1436  *
1437  * This function only works in connected mode, and dumps the
1438  * requested station information, if available.
1439  */
1440 static int
1441 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1442                              const u8 *mac, struct station_info *sinfo)
1443 {
1444         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1445
1446         if (!priv->media_connected)
1447                 return -ENOENT;
1448         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1449                 return -ENOENT;
1450
1451         return mwifiex_dump_station_info(priv, NULL, sinfo);
1452 }
1453
1454 /*
1455  * CFG802.11 operation handler to dump station information.
1456  */
1457 static int
1458 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1459                               int idx, u8 *mac, struct station_info *sinfo)
1460 {
1461         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1462         static struct mwifiex_sta_node *node;
1463
1464         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1465             priv->media_connected && idx == 0) {
1466                 ether_addr_copy(mac, priv->cfg_bssid);
1467                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1468         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1469                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1470                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1471
1472                 if (node && (&node->list == &priv->sta_list)) {
1473                         node = NULL;
1474                         return -ENOENT;
1475                 }
1476
1477                 node = list_prepare_entry(node, &priv->sta_list, list);
1478                 list_for_each_entry_continue(node, &priv->sta_list, list) {
1479                         ether_addr_copy(mac, node->mac_addr);
1480                         return mwifiex_dump_station_info(priv, node, sinfo);
1481                 }
1482         }
1483
1484         return -ENOENT;
1485 }
1486
1487 static int
1488 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1489                              int idx, struct survey_info *survey)
1490 {
1491         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1492         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1493         enum nl80211_band band;
1494
1495         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1496
1497         memset(survey, 0, sizeof(struct survey_info));
1498
1499         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1500             priv->media_connected && idx == 0) {
1501                         u8 curr_bss_band = priv->curr_bss_params.band;
1502                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1503
1504                         band = mwifiex_band_to_radio_type(curr_bss_band);
1505                         survey->channel = ieee80211_get_channel(wiphy,
1506                                 ieee80211_channel_to_frequency(chan, band));
1507
1508                         if (priv->bcn_nf_last) {
1509                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1510                                 survey->noise = priv->bcn_nf_last;
1511                         }
1512                         return 0;
1513         }
1514
1515         if (idx >= priv->adapter->num_in_chan_stats)
1516                 return -ENOENT;
1517
1518         if (!pchan_stats[idx].cca_scan_dur)
1519                 return 0;
1520
1521         band = pchan_stats[idx].bandcfg;
1522         survey->channel = ieee80211_get_channel(wiphy,
1523             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1524         survey->filled = SURVEY_INFO_NOISE_DBM |
1525                          SURVEY_INFO_TIME |
1526                          SURVEY_INFO_TIME_BUSY;
1527         survey->noise = pchan_stats[idx].noise;
1528         survey->time = pchan_stats[idx].cca_scan_dur;
1529         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1530
1531         return 0;
1532 }
1533
1534 /* Supported rates to be advertised to the cfg80211 */
1535 static struct ieee80211_rate mwifiex_rates[] = {
1536         {.bitrate = 10, .hw_value = 2, },
1537         {.bitrate = 20, .hw_value = 4, },
1538         {.bitrate = 55, .hw_value = 11, },
1539         {.bitrate = 110, .hw_value = 22, },
1540         {.bitrate = 60, .hw_value = 12, },
1541         {.bitrate = 90, .hw_value = 18, },
1542         {.bitrate = 120, .hw_value = 24, },
1543         {.bitrate = 180, .hw_value = 36, },
1544         {.bitrate = 240, .hw_value = 48, },
1545         {.bitrate = 360, .hw_value = 72, },
1546         {.bitrate = 480, .hw_value = 96, },
1547         {.bitrate = 540, .hw_value = 108, },
1548 };
1549
1550 /* Channel definitions to be advertised to cfg80211 */
1551 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1552         {.center_freq = 2412, .hw_value = 1, },
1553         {.center_freq = 2417, .hw_value = 2, },
1554         {.center_freq = 2422, .hw_value = 3, },
1555         {.center_freq = 2427, .hw_value = 4, },
1556         {.center_freq = 2432, .hw_value = 5, },
1557         {.center_freq = 2437, .hw_value = 6, },
1558         {.center_freq = 2442, .hw_value = 7, },
1559         {.center_freq = 2447, .hw_value = 8, },
1560         {.center_freq = 2452, .hw_value = 9, },
1561         {.center_freq = 2457, .hw_value = 10, },
1562         {.center_freq = 2462, .hw_value = 11, },
1563         {.center_freq = 2467, .hw_value = 12, },
1564         {.center_freq = 2472, .hw_value = 13, },
1565         {.center_freq = 2484, .hw_value = 14, },
1566 };
1567
1568 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1569         .channels = mwifiex_channels_2ghz,
1570         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1571         .bitrates = mwifiex_rates,
1572         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1573 };
1574
1575 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1576         {.center_freq = 5040, .hw_value = 8, },
1577         {.center_freq = 5060, .hw_value = 12, },
1578         {.center_freq = 5080, .hw_value = 16, },
1579         {.center_freq = 5170, .hw_value = 34, },
1580         {.center_freq = 5190, .hw_value = 38, },
1581         {.center_freq = 5210, .hw_value = 42, },
1582         {.center_freq = 5230, .hw_value = 46, },
1583         {.center_freq = 5180, .hw_value = 36, },
1584         {.center_freq = 5200, .hw_value = 40, },
1585         {.center_freq = 5220, .hw_value = 44, },
1586         {.center_freq = 5240, .hw_value = 48, },
1587         {.center_freq = 5260, .hw_value = 52, },
1588         {.center_freq = 5280, .hw_value = 56, },
1589         {.center_freq = 5300, .hw_value = 60, },
1590         {.center_freq = 5320, .hw_value = 64, },
1591         {.center_freq = 5500, .hw_value = 100, },
1592         {.center_freq = 5520, .hw_value = 104, },
1593         {.center_freq = 5540, .hw_value = 108, },
1594         {.center_freq = 5560, .hw_value = 112, },
1595         {.center_freq = 5580, .hw_value = 116, },
1596         {.center_freq = 5600, .hw_value = 120, },
1597         {.center_freq = 5620, .hw_value = 124, },
1598         {.center_freq = 5640, .hw_value = 128, },
1599         {.center_freq = 5660, .hw_value = 132, },
1600         {.center_freq = 5680, .hw_value = 136, },
1601         {.center_freq = 5700, .hw_value = 140, },
1602         {.center_freq = 5745, .hw_value = 149, },
1603         {.center_freq = 5765, .hw_value = 153, },
1604         {.center_freq = 5785, .hw_value = 157, },
1605         {.center_freq = 5805, .hw_value = 161, },
1606         {.center_freq = 5825, .hw_value = 165, },
1607 };
1608
1609 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1610         .channels = mwifiex_channels_5ghz,
1611         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1612         .bitrates = mwifiex_rates + 4,
1613         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1614 };
1615
1616
1617 /* Supported crypto cipher suits to be advertised to cfg80211 */
1618 static const u32 mwifiex_cipher_suites[] = {
1619         WLAN_CIPHER_SUITE_WEP40,
1620         WLAN_CIPHER_SUITE_WEP104,
1621         WLAN_CIPHER_SUITE_TKIP,
1622         WLAN_CIPHER_SUITE_CCMP,
1623         WLAN_CIPHER_SUITE_SMS4,
1624         WLAN_CIPHER_SUITE_AES_CMAC,
1625 };
1626
1627 /* Supported mgmt frame types to be advertised to cfg80211 */
1628 static const struct ieee80211_txrx_stypes
1629 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1630         [NL80211_IFTYPE_STATION] = {
1631                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1632                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1633                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1634                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1635         },
1636         [NL80211_IFTYPE_AP] = {
1637                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1638                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1639                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1640                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1641         },
1642         [NL80211_IFTYPE_P2P_CLIENT] = {
1643                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1644                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1645                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1646                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1647         },
1648         [NL80211_IFTYPE_P2P_GO] = {
1649                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1650                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1651                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1652                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1653         },
1654 };
1655
1656 /*
1657  * CFG802.11 operation handler for setting bit rates.
1658  *
1659  * Function configures data rates to firmware using bitrate mask
1660  * provided by cfg80211.
1661  */
1662 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1663                                 struct net_device *dev,
1664                                 const u8 *peer,
1665                                 const struct cfg80211_bitrate_mask *mask)
1666 {
1667         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1668         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1669         enum nl80211_band band;
1670         struct mwifiex_adapter *adapter = priv->adapter;
1671
1672         if (!priv->media_connected) {
1673                 mwifiex_dbg(adapter, ERROR,
1674                             "Can not set Tx data rate in disconnected state\n");
1675                 return -EINVAL;
1676         }
1677
1678         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1679
1680         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1681
1682         /* Fill HR/DSSS rates. */
1683         if (band == NL80211_BAND_2GHZ)
1684                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1685
1686         /* Fill OFDM rates */
1687         if (band == NL80211_BAND_2GHZ)
1688                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1689         else
1690                 bitmap_rates[1] = mask->control[band].legacy;
1691
1692         /* Fill HT MCS rates */
1693         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1694         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1695                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1696
1697        /* Fill VHT MCS rates */
1698         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1699                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1700                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1701                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1702         }
1703
1704         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1705                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1706 }
1707
1708 /*
1709  * CFG802.11 operation handler for connection quality monitoring.
1710  *
1711  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1712  * events to FW.
1713  */
1714 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1715                                                 struct net_device *dev,
1716                                                 s32 rssi_thold, u32 rssi_hyst)
1717 {
1718         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1719         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1720
1721         priv->cqm_rssi_thold = rssi_thold;
1722         priv->cqm_rssi_hyst = rssi_hyst;
1723
1724         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1725         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1726
1727         /* Subscribe/unsubscribe low and high rssi events */
1728         if (rssi_thold && rssi_hyst) {
1729                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1730                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1731                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1732                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1733                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1734                 return mwifiex_send_cmd(priv,
1735                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1736                                         0, 0, &subsc_evt, true);
1737         } else {
1738                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1739                 return mwifiex_send_cmd(priv,
1740                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1741                                         0, 0, &subsc_evt, true);
1742         }
1743
1744         return 0;
1745 }
1746
1747 /* cfg80211 operation handler for change_beacon.
1748  * Function retrieves and sets modified management IEs to FW.
1749  */
1750 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1751                                           struct net_device *dev,
1752                                           struct cfg80211_beacon_data *data)
1753 {
1754         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1755         struct mwifiex_adapter *adapter = priv->adapter;
1756
1757         mwifiex_cancel_scan(adapter);
1758
1759         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1760                 mwifiex_dbg(priv->adapter, ERROR,
1761                             "%s: bss_type mismatched\n", __func__);
1762                 return -EINVAL;
1763         }
1764
1765         if (!priv->bss_started) {
1766                 mwifiex_dbg(priv->adapter, ERROR,
1767                             "%s: bss not started\n", __func__);
1768                 return -EINVAL;
1769         }
1770
1771         if (mwifiex_set_mgmt_ies(priv, data)) {
1772                 mwifiex_dbg(priv->adapter, ERROR,
1773                             "%s: setting mgmt ies failed\n", __func__);
1774                 return -EFAULT;
1775         }
1776
1777         return 0;
1778 }
1779
1780 /* cfg80211 operation handler for del_station.
1781  * Function deauthenticates station which value is provided in mac parameter.
1782  * If mac is NULL/broadcast, all stations in associated station list are
1783  * deauthenticated. If bss is not started or there are no stations in
1784  * associated stations list, no action is taken.
1785  */
1786 static int
1787 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1788                              struct station_del_parameters *params)
1789 {
1790         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1791         struct mwifiex_sta_node *sta_node;
1792         u8 deauth_mac[ETH_ALEN];
1793         unsigned long flags;
1794
1795         if (!priv->bss_started && priv->wdev.cac_started) {
1796                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1797                 mwifiex_abort_cac(priv);
1798         }
1799
1800         if (list_empty(&priv->sta_list) || !priv->bss_started)
1801                 return 0;
1802
1803         if (!params->mac || is_broadcast_ether_addr(params->mac))
1804                 return 0;
1805
1806         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1807                     __func__, params->mac);
1808
1809         eth_zero_addr(deauth_mac);
1810
1811         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1812         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1813         if (sta_node)
1814                 ether_addr_copy(deauth_mac, params->mac);
1815         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1816
1817         if (is_valid_ether_addr(deauth_mac)) {
1818                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1819                                      HostCmd_ACT_GEN_SET, 0,
1820                                      deauth_mac, true))
1821                         return -1;
1822         }
1823
1824         return 0;
1825 }
1826
1827 static int
1828 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1829 {
1830         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1831         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1832                                                         MWIFIEX_BSS_ROLE_ANY);
1833         struct mwifiex_ds_ant_cfg ant_cfg;
1834
1835         if (!tx_ant || !rx_ant)
1836                 return -EOPNOTSUPP;
1837
1838         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1839                 /* Not a MIMO chip. User should provide specific antenna number
1840                  * for Tx/Rx path or enable all antennas for diversity
1841                  */
1842                 if (tx_ant != rx_ant)
1843                         return -EOPNOTSUPP;
1844
1845                 if ((tx_ant & (tx_ant - 1)) &&
1846                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1847                         return -EOPNOTSUPP;
1848
1849                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1850                     (priv->adapter->number_of_antenna > 1)) {
1851                         tx_ant = RF_ANTENNA_AUTO;
1852                         rx_ant = RF_ANTENNA_AUTO;
1853                 }
1854         } else {
1855                 struct ieee80211_sta_ht_cap *ht_info;
1856                 int rx_mcs_supp;
1857                 enum nl80211_band band;
1858
1859                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1860                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1861                         if (adapter->is_hw_11ac_capable)
1862                                 adapter->usr_dot_11ac_mcs_support =
1863                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1864                 } else {
1865                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1866                         if (adapter->is_hw_11ac_capable)
1867                                 adapter->usr_dot_11ac_mcs_support =
1868                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1869                 }
1870
1871                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1872                         if (!adapter->wiphy->bands[band])
1873                                 continue;
1874
1875                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1876                         rx_mcs_supp =
1877                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1878                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1879                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1880                 }
1881         }
1882
1883         ant_cfg.tx_ant = tx_ant;
1884         ant_cfg.rx_ant = rx_ant;
1885
1886         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1887                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1888 }
1889
1890 static int
1891 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1892 {
1893         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1894         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1895                                                         MWIFIEX_BSS_ROLE_ANY);
1896         mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1897                          HostCmd_ACT_GEN_GET, 0, NULL, true);
1898
1899         *tx_ant = priv->tx_ant;
1900         *rx_ant = priv->rx_ant;
1901
1902         return 0;
1903 }
1904
1905 /* cfg80211 operation handler for stop ap.
1906  * Function stops BSS running at uAP interface.
1907  */
1908 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1909 {
1910         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1911
1912         mwifiex_abort_cac(priv);
1913
1914         if (mwifiex_del_mgmt_ies(priv))
1915                 mwifiex_dbg(priv->adapter, ERROR,
1916                             "Failed to delete mgmt IEs!\n");
1917
1918         priv->ap_11n_enabled = 0;
1919         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1920
1921         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1922                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1923                 mwifiex_dbg(priv->adapter, ERROR,
1924                             "Failed to stop the BSS\n");
1925                 return -1;
1926         }
1927
1928         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1929                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1930                 mwifiex_dbg(priv->adapter, ERROR,
1931                             "Failed to reset BSS\n");
1932                 return -1;
1933         }
1934
1935         if (netif_carrier_ok(priv->netdev))
1936                 netif_carrier_off(priv->netdev);
1937         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1938
1939         return 0;
1940 }
1941
1942 /* cfg80211 operation handler for start_ap.
1943  * Function sets beacon period, DTIM period, SSID and security into
1944  * AP config structure.
1945  * AP is configured with these settings and BSS is started.
1946  */
1947 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1948                                      struct net_device *dev,
1949                                      struct cfg80211_ap_settings *params)
1950 {
1951         struct mwifiex_uap_bss_param *bss_cfg;
1952         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1953
1954         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1955                 return -1;
1956
1957         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1958         if (!bss_cfg)
1959                 return -ENOMEM;
1960
1961         mwifiex_set_sys_config_invalid_data(bss_cfg);
1962
1963         if (params->beacon_interval)
1964                 bss_cfg->beacon_period = params->beacon_interval;
1965         if (params->dtim_period)
1966                 bss_cfg->dtim_period = params->dtim_period;
1967
1968         if (params->ssid && params->ssid_len) {
1969                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1970                 bss_cfg->ssid.ssid_len = params->ssid_len;
1971         }
1972         if (params->inactivity_timeout > 0) {
1973                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1974                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1975                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1976         }
1977
1978         switch (params->hidden_ssid) {
1979         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1980                 bss_cfg->bcast_ssid_ctl = 1;
1981                 break;
1982         case NL80211_HIDDEN_SSID_ZERO_LEN:
1983                 bss_cfg->bcast_ssid_ctl = 0;
1984                 break;
1985         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1986                 bss_cfg->bcast_ssid_ctl = 2;
1987                 break;
1988         default:
1989                 kfree(bss_cfg);
1990                 return -EINVAL;
1991         }
1992
1993         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1994         mwifiex_set_uap_rates(bss_cfg, params);
1995
1996         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1997                 mwifiex_dbg(priv->adapter, ERROR,
1998                             "Failed to parse security parameters!\n");
1999                 goto out;
2000         }
2001
2002         mwifiex_set_ht_params(priv, bss_cfg, params);
2003
2004         if (priv->adapter->is_hw_11ac_capable) {
2005                 mwifiex_set_vht_params(priv, bss_cfg, params);
2006                 mwifiex_set_vht_width(priv, params->chandef.width,
2007                                       priv->ap_11ac_enabled);
2008         }
2009
2010         if (priv->ap_11ac_enabled)
2011                 mwifiex_set_11ac_ba_params(priv);
2012         else
2013                 mwifiex_set_ba_params(priv);
2014
2015         mwifiex_set_wmm_params(priv, bss_cfg, params);
2016
2017         if (mwifiex_is_11h_active(priv))
2018                 mwifiex_set_tpc_params(priv, bss_cfg, params);
2019
2020         if (mwifiex_is_11h_active(priv) &&
2021             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2022                                            priv->bss_mode)) {
2023                 mwifiex_dbg(priv->adapter, INFO,
2024                             "Disable 11h extensions in FW\n");
2025                 if (mwifiex_11h_activate(priv, false)) {
2026                         mwifiex_dbg(priv->adapter, ERROR,
2027                                     "Failed to disable 11h extensions!!");
2028                         goto out;
2029                 }
2030                 priv->state_11h.is_11h_active = false;
2031         }
2032
2033         mwifiex_config_uap_11d(priv, &params->beacon);
2034
2035         if (mwifiex_config_start_uap(priv, bss_cfg)) {
2036                 mwifiex_dbg(priv->adapter, ERROR,
2037                             "Failed to start AP\n");
2038                 goto out;
2039         }
2040
2041         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2042                 goto out;
2043
2044         if (!netif_carrier_ok(priv->netdev))
2045                 netif_carrier_on(priv->netdev);
2046         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2047
2048         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2049         kfree(bss_cfg);
2050         return 0;
2051
2052 out:
2053         kfree(bss_cfg);
2054         return -1;
2055 }
2056
2057 /*
2058  * CFG802.11 operation handler for disconnection request.
2059  *
2060  * This function does not work when there is already a disconnection
2061  * procedure going on.
2062  */
2063 static int
2064 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2065                             u16 reason_code)
2066 {
2067         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2068
2069         if (!mwifiex_stop_bg_scan(priv))
2070                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2071
2072         if (mwifiex_deauthenticate(priv, NULL))
2073                 return -EFAULT;
2074
2075         eth_zero_addr(priv->cfg_bssid);
2076         priv->hs2_enabled = false;
2077
2078         return 0;
2079 }
2080
2081 /*
2082  * This function informs the CFG802.11 subsystem of a new IBSS.
2083  *
2084  * The following information are sent to the CFG802.11 subsystem
2085  * to register the new IBSS. If we do not register the new IBSS,
2086  * a kernel panic will result.
2087  *      - SSID
2088  *      - SSID length
2089  *      - BSSID
2090  *      - Channel
2091  */
2092 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2093 {
2094         struct ieee80211_channel *chan;
2095         struct mwifiex_bss_info bss_info;
2096         struct cfg80211_bss *bss;
2097         int ie_len;
2098         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2099         enum nl80211_band band;
2100
2101         if (mwifiex_get_bss_info(priv, &bss_info))
2102                 return -1;
2103
2104         ie_buf[0] = WLAN_EID_SSID;
2105         ie_buf[1] = bss_info.ssid.ssid_len;
2106
2107         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2108                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2109         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2110
2111         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2112         chan = ieee80211_get_channel(priv->wdev.wiphy,
2113                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2114                                                        band));
2115
2116         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2117                                   CFG80211_BSS_FTYPE_UNKNOWN,
2118                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2119                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2120         if (bss) {
2121                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2122                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2123         }
2124
2125         return 0;
2126 }
2127
2128 /*
2129  * This function connects with a BSS.
2130  *
2131  * This function handles both Infra and Ad-Hoc modes. It also performs
2132  * validity checking on the provided parameters, disconnects from the
2133  * current BSS (if any), sets up the association/scan parameters,
2134  * including security settings, and performs specific SSID scan before
2135  * trying to connect.
2136  *
2137  * For Infra mode, the function returns failure if the specified SSID
2138  * is not found in scan table. However, for Ad-Hoc mode, it can create
2139  * the IBSS if it does not exist. On successful completion in either case,
2140  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2141  */
2142 static int
2143 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2144                        const u8 *ssid, const u8 *bssid, int mode,
2145                        struct ieee80211_channel *channel,
2146                        struct cfg80211_connect_params *sme, bool privacy)
2147 {
2148         struct cfg80211_ssid req_ssid;
2149         int ret, auth_type = 0;
2150         struct cfg80211_bss *bss = NULL;
2151         u8 is_scanning_required = 0;
2152
2153         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2154
2155         req_ssid.ssid_len = ssid_len;
2156         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2157                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2158                 return -EINVAL;
2159         }
2160
2161         memcpy(req_ssid.ssid, ssid, ssid_len);
2162         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2163                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2164                 return -EINVAL;
2165         }
2166
2167         /* As this is new association, clear locally stored
2168          * keys and security related flags */
2169         priv->sec_info.wpa_enabled = false;
2170         priv->sec_info.wpa2_enabled = false;
2171         priv->wep_key_curr_index = 0;
2172         priv->sec_info.encryption_mode = 0;
2173         priv->sec_info.is_authtype_auto = 0;
2174         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2175
2176         if (mode == NL80211_IFTYPE_ADHOC) {
2177                 u16 enable = true;
2178
2179                 /* set ibss coalescing_status */
2180                 ret = mwifiex_send_cmd(
2181                                 priv,
2182                                 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2183                                 HostCmd_ACT_GEN_SET, 0, &enable, true);
2184                 if (ret)
2185                         return ret;
2186
2187                 /* "privacy" is set only for ad-hoc mode */
2188                 if (privacy) {
2189                         /*
2190                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2191                          * the firmware can find a matching network from the
2192                          * scan. The cfg80211 does not give us the encryption
2193                          * mode at this stage so just setting it to WEP here.
2194                          */
2195                         priv->sec_info.encryption_mode =
2196                                         WLAN_CIPHER_SUITE_WEP104;
2197                         priv->sec_info.authentication_mode =
2198                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2199                 }
2200
2201                 goto done;
2202         }
2203
2204         /* Now handle infra mode. "sme" is valid for infra mode only */
2205         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2206                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2207                 priv->sec_info.is_authtype_auto = 1;
2208         } else {
2209                 auth_type = sme->auth_type;
2210         }
2211
2212         if (sme->crypto.n_ciphers_pairwise) {
2213                 priv->sec_info.encryption_mode =
2214                                                 sme->crypto.ciphers_pairwise[0];
2215                 priv->sec_info.authentication_mode = auth_type;
2216         }
2217
2218         if (sme->crypto.cipher_group) {
2219                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2220                 priv->sec_info.authentication_mode = auth_type;
2221         }
2222         if (sme->ie)
2223                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2224
2225         if (sme->key) {
2226                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2227                         mwifiex_dbg(priv->adapter, INFO,
2228                                     "info: setting wep encryption\t"
2229                                     "with key len %d\n", sme->key_len);
2230                         priv->wep_key_curr_index = sme->key_idx;
2231                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2232                                                  sme->key_len, sme->key_idx,
2233                                                  NULL, 0);
2234                 }
2235         }
2236 done:
2237         /*
2238          * Scan entries are valid for some time (15 sec). So we can save one
2239          * active scan time if we just try cfg80211_get_bss first. If it fails
2240          * then request scan and cfg80211_get_bss() again for final output.
2241          */
2242         while (1) {
2243                 if (is_scanning_required) {
2244                         /* Do specific SSID scanning */
2245                         if (mwifiex_request_scan(priv, &req_ssid)) {
2246                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2247                                 return -EFAULT;
2248                         }
2249                 }
2250
2251                 /* Find the BSS we want using available scan results */
2252                 if (mode == NL80211_IFTYPE_ADHOC)
2253                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2254                                                bssid, ssid, ssid_len,
2255                                                IEEE80211_BSS_TYPE_IBSS,
2256                                                IEEE80211_PRIVACY_ANY);
2257                 else
2258                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2259                                                bssid, ssid, ssid_len,
2260                                                IEEE80211_BSS_TYPE_ESS,
2261                                                IEEE80211_PRIVACY_ANY);
2262
2263                 if (!bss) {
2264                         if (is_scanning_required) {
2265                                 mwifiex_dbg(priv->adapter, MSG,
2266                                             "assoc: requested bss not found in scan results\n");
2267                                 break;
2268                         }
2269                         is_scanning_required = 1;
2270                 } else {
2271                         mwifiex_dbg(priv->adapter, MSG,
2272                                     "info: trying to associate to '%.*s' bssid %pM\n",
2273                                     req_ssid.ssid_len, (char *)req_ssid.ssid,
2274                                     bss->bssid);
2275                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2276                         break;
2277                 }
2278         }
2279
2280         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2281         if (ret)
2282                 return ret;
2283
2284         if (mode == NL80211_IFTYPE_ADHOC) {
2285                 /* Inform the BSS information to kernel, otherwise
2286                  * kernel will give a panic after successful assoc */
2287                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2288                         return -EFAULT;
2289         }
2290
2291         return ret;
2292 }
2293
2294 /*
2295  * CFG802.11 operation handler for association request.
2296  *
2297  * This function does not work when the current mode is set to Ad-Hoc, or
2298  * when there is already an association procedure going on. The given BSS
2299  * information is used to associate.
2300  */
2301 static int
2302 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2303                          struct cfg80211_connect_params *sme)
2304 {
2305         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2306         struct mwifiex_adapter *adapter = priv->adapter;
2307         int ret;
2308
2309         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2310                 mwifiex_dbg(adapter, ERROR,
2311                             "%s: reject infra assoc request in non-STA role\n",
2312                             dev->name);
2313                 return -EINVAL;
2314         }
2315
2316         if (priv->wdev.current_bss) {
2317                 mwifiex_dbg(adapter, ERROR,
2318                             "%s: already connected\n", dev->name);
2319                 return -EALREADY;
2320         }
2321
2322         if (priv->scan_block)
2323                 priv->scan_block = false;
2324
2325         if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2326             test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2327                 mwifiex_dbg(adapter, ERROR,
2328                             "%s: Ignore connection.\t"
2329                             "Card removed or FW in bad state\n",
2330                             dev->name);
2331                 return -EFAULT;
2332         }
2333
2334         mwifiex_dbg(adapter, INFO,
2335                     "info: Trying to associate to %.*s and bssid %pM\n",
2336                     (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2337
2338         if (!mwifiex_stop_bg_scan(priv))
2339                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2340
2341         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2342                                      priv->bss_mode, sme->channel, sme, 0);
2343         if (!ret) {
2344                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2345                                         NULL, 0, WLAN_STATUS_SUCCESS,
2346                                         GFP_KERNEL);
2347                 mwifiex_dbg(priv->adapter, MSG,
2348                             "info: associated to bssid %pM successfully\n",
2349                             priv->cfg_bssid);
2350                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2351                     priv->adapter->auto_tdls &&
2352                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2353                         mwifiex_setup_auto_tdls_timer(priv);
2354         } else {
2355                 mwifiex_dbg(priv->adapter, ERROR,
2356                             "info: association to bssid %pM failed\n",
2357                             priv->cfg_bssid);
2358                 eth_zero_addr(priv->cfg_bssid);
2359
2360                 if (ret > 0)
2361                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2362                                                 NULL, 0, NULL, 0, ret,
2363                                                 GFP_KERNEL);
2364                 else
2365                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2366                                                 NULL, 0, NULL, 0,
2367                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2368                                                 GFP_KERNEL);
2369         }
2370
2371         return 0;
2372 }
2373
2374 /*
2375  * This function sets following parameters for ibss network.
2376  *  -  channel
2377  *  -  start band
2378  *  -  11n flag
2379  *  -  secondary channel offset
2380  */
2381 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2382                                    struct cfg80211_ibss_params *params)
2383 {
2384         struct mwifiex_adapter *adapter = priv->adapter;
2385         int index = 0, i;
2386         u8 config_bands = 0;
2387
2388         if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2389                 if (!params->basic_rates) {
2390                         config_bands = BAND_B | BAND_G;
2391                 } else {
2392                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2393                                 /*
2394                                  * Rates below 6 Mbps in the table are CCK
2395                                  * rates; 802.11b and from 6 they are OFDM;
2396                                  * 802.11G
2397                                  */
2398                                 if (mwifiex_rates[i].bitrate == 60) {
2399                                         index = 1 << i;
2400                                         break;
2401                                 }
2402                         }
2403
2404                         if (params->basic_rates < index) {
2405                                 config_bands = BAND_B;
2406                         } else {
2407                                 config_bands = BAND_G;
2408                                 if (params->basic_rates % index)
2409                                         config_bands |= BAND_B;
2410                         }
2411                 }
2412
2413                 if (cfg80211_get_chandef_type(&params->chandef) !=
2414                                                 NL80211_CHAN_NO_HT)
2415                         config_bands |= BAND_G | BAND_GN;
2416         } else {
2417                 if (cfg80211_get_chandef_type(&params->chandef) ==
2418                                                 NL80211_CHAN_NO_HT)
2419                         config_bands = BAND_A;
2420                 else
2421                         config_bands = BAND_AN | BAND_A;
2422         }
2423
2424         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2425                 adapter->config_bands = config_bands;
2426                 adapter->adhoc_start_band = config_bands;
2427
2428                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2429                         adapter->adhoc_11n_enabled = true;
2430                 else
2431                         adapter->adhoc_11n_enabled = false;
2432         }
2433
2434         adapter->sec_chan_offset =
2435                 mwifiex_chan_type_to_sec_chan_offset(
2436                         cfg80211_get_chandef_type(&params->chandef));
2437         priv->adhoc_channel = ieee80211_frequency_to_channel(
2438                                 params->chandef.chan->center_freq);
2439
2440         mwifiex_dbg(adapter, INFO,
2441                     "info: set ibss band %d, chan %d, chan offset %d\n",
2442                     config_bands, priv->adhoc_channel,
2443                     adapter->sec_chan_offset);
2444
2445         return 0;
2446 }
2447
2448 /*
2449  * CFG802.11 operation handler to join an IBSS.
2450  *
2451  * This function does not work in any mode other than Ad-Hoc, or if
2452  * a join operation is already in progress.
2453  */
2454 static int
2455 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2456                            struct cfg80211_ibss_params *params)
2457 {
2458         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2459         int ret = 0;
2460
2461         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2462                 mwifiex_dbg(priv->adapter, ERROR,
2463                             "request to join ibss received\t"
2464                             "when station is not in ibss mode\n");
2465                 goto done;
2466         }
2467
2468         mwifiex_dbg(priv->adapter, MSG,
2469                     "info: trying to join to %.*s and bssid %pM\n",
2470                     params->ssid_len, (char *)params->ssid, params->bssid);
2471
2472         mwifiex_set_ibss_params(priv, params);
2473
2474         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2475                                      params->bssid, priv->bss_mode,
2476                                      params->chandef.chan, NULL,
2477                                      params->privacy);
2478 done:
2479         if (!ret) {
2480                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2481                                      params->chandef.chan, GFP_KERNEL);
2482                 mwifiex_dbg(priv->adapter, MSG,
2483                             "info: joined/created adhoc network with bssid\t"
2484                             "%pM successfully\n", priv->cfg_bssid);
2485         } else {
2486                 mwifiex_dbg(priv->adapter, ERROR,
2487                             "info: failed creating/joining adhoc network\n");
2488         }
2489
2490         return ret;
2491 }
2492
2493 /*
2494  * CFG802.11 operation handler to leave an IBSS.
2495  *
2496  * This function does not work if a leave operation is
2497  * already in progress.
2498  */
2499 static int
2500 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2501 {
2502         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2503
2504         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2505                     priv->cfg_bssid);
2506         if (mwifiex_deauthenticate(priv, NULL))
2507                 return -EFAULT;
2508
2509         eth_zero_addr(priv->cfg_bssid);
2510
2511         return 0;
2512 }
2513
2514 /*
2515  * CFG802.11 operation handler for scan request.
2516  *
2517  * This function issues a scan request to the firmware based upon
2518  * the user specified scan configuration. On successful completion,
2519  * it also informs the results.
2520  */
2521 static int
2522 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2523                       struct cfg80211_scan_request *request)
2524 {
2525         struct net_device *dev = request->wdev->netdev;
2526         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2527         int i, offset, ret;
2528         struct ieee80211_channel *chan;
2529         struct ieee_types_header *ie;
2530         struct mwifiex_user_scan_cfg *user_scan_cfg;
2531         u8 mac_addr[ETH_ALEN];
2532
2533         mwifiex_dbg(priv->adapter, CMD,
2534                     "info: received scan request on %s\n", dev->name);
2535
2536         /* Block scan request if scan operation or scan cleanup when interface
2537          * is disabled is in process
2538          */
2539         if (priv->scan_request || priv->scan_aborting) {
2540                 mwifiex_dbg(priv->adapter, WARN,
2541                             "cmd: Scan already in process..\n");
2542                 return -EBUSY;
2543         }
2544
2545         if (!priv->wdev.current_bss && priv->scan_block)
2546                 priv->scan_block = false;
2547
2548         if (!mwifiex_stop_bg_scan(priv))
2549                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2550
2551         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2552         if (!user_scan_cfg)
2553                 return -ENOMEM;
2554
2555         priv->scan_request = request;
2556
2557         if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2558                 get_random_mask_addr(mac_addr, request->mac_addr,
2559                                      request->mac_addr_mask);
2560                 ether_addr_copy(request->mac_addr, mac_addr);
2561                 ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2562         }
2563
2564         user_scan_cfg->num_ssids = request->n_ssids;
2565         user_scan_cfg->ssid_list = request->ssids;
2566
2567         if (request->ie && request->ie_len) {
2568                 offset = 0;
2569                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2570                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2571                                 continue;
2572                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2573                         ie = (struct ieee_types_header *)(request->ie + offset);
2574                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2575                         offset += sizeof(*ie) + ie->len;
2576
2577                         if (offset >= request->ie_len)
2578                                 break;
2579                 }
2580         }
2581
2582         for (i = 0; i < min_t(u32, request->n_channels,
2583                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2584                 chan = request->channels[i];
2585                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2586                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2587
2588                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2589                         user_scan_cfg->chan_list[i].scan_type =
2590                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2591                 else
2592                         user_scan_cfg->chan_list[i].scan_type =
2593                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2594
2595                 user_scan_cfg->chan_list[i].scan_time = 0;
2596         }
2597
2598         if (priv->adapter->scan_chan_gap_enabled &&
2599             mwifiex_is_any_intf_active(priv))
2600                 user_scan_cfg->scan_chan_gap =
2601                                               priv->adapter->scan_chan_gap_time;
2602
2603         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2604         kfree(user_scan_cfg);
2605         if (ret) {
2606                 mwifiex_dbg(priv->adapter, ERROR,
2607                             "scan failed: %d\n", ret);
2608                 priv->scan_aborting = false;
2609                 priv->scan_request = NULL;
2610                 return ret;
2611         }
2612
2613         if (request->ie && request->ie_len) {
2614                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2615                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2616                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2617                                 memset(&priv->vs_ie[i].ie, 0,
2618                                        MWIFIEX_MAX_VSIE_LEN);
2619                         }
2620                 }
2621         }
2622         return 0;
2623 }
2624
2625 /* CFG802.11 operation handler for sched_scan_start.
2626  *
2627  * This function issues a bgscan config request to the firmware based upon
2628  * the user specified sched_scan configuration. On successful completion,
2629  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2630  * query command to get sched_scan results from firmware.
2631  */
2632 static int
2633 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2634                                   struct net_device *dev,
2635                                   struct cfg80211_sched_scan_request *request)
2636 {
2637         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2638         int i, offset;
2639         struct ieee80211_channel *chan;
2640         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2641         struct ieee_types_header *ie;
2642
2643         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2644                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2645                           __func__);
2646                 return -EINVAL;
2647         }
2648
2649         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2650                    request->n_ssids, request->n_match_sets);
2651         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2652                    request->n_channels, request->scan_plans->interval,
2653                    (int)request->ie_len);
2654
2655         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2656         if (!bgscan_cfg)
2657                 return -ENOMEM;
2658
2659         if (priv->scan_request || priv->scan_aborting)
2660                 bgscan_cfg->start_later = true;
2661
2662         bgscan_cfg->num_ssids = request->n_match_sets;
2663         bgscan_cfg->ssid_list = request->match_sets;
2664
2665         if (request->ie && request->ie_len) {
2666                 offset = 0;
2667                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2668                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2669                                 continue;
2670                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2671                         ie = (struct ieee_types_header *)(request->ie + offset);
2672                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2673                         offset += sizeof(*ie) + ie->len;
2674
2675                         if (offset >= request->ie_len)
2676                                 break;
2677                 }
2678         }
2679
2680         for (i = 0; i < min_t(u32, request->n_channels,
2681                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2682                 chan = request->channels[i];
2683                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2684                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2685
2686                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2687                         bgscan_cfg->chan_list[i].scan_type =
2688                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2689                 else
2690                         bgscan_cfg->chan_list[i].scan_type =
2691                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2692
2693                 bgscan_cfg->chan_list[i].scan_time = 0;
2694         }
2695
2696         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2697                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2698
2699         /* Use at least 15 second for per scan cycle */
2700         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2701                                      MWIFIEX_BGSCAN_INTERVAL) ?
2702                                 request->scan_plans->interval :
2703                                 MWIFIEX_BGSCAN_INTERVAL;
2704
2705         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2706         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2707                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2708         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2709         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2710         bgscan_cfg->enable = true;
2711         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2712                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2713                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2714         }
2715
2716         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2717                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2718                 kfree(bgscan_cfg);
2719                 return -EFAULT;
2720         }
2721
2722         priv->sched_scanning = true;
2723
2724         kfree(bgscan_cfg);
2725         return 0;
2726 }
2727
2728 /* CFG802.11 operation handler for sched_scan_stop.
2729  *
2730  * This function issues a bgscan config command to disable
2731  * previous bgscan configuration in the firmware
2732  */
2733 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2734                                             struct net_device *dev, u64 reqid)
2735 {
2736         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2737
2738         wiphy_info(wiphy, "sched scan stop!");
2739         mwifiex_stop_bg_scan(priv);
2740
2741         return 0;
2742 }
2743
2744 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2745                                    struct mwifiex_private *priv)
2746 {
2747         struct mwifiex_adapter *adapter = priv->adapter;
2748
2749         vht_info->vht_supported = true;
2750
2751         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2752         /* Update MCS support for VHT */
2753         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2754                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2755         vht_info->vht_mcs.rx_highest = 0;
2756         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2757                                 adapter->hw_dot_11ac_mcs_support >> 16);
2758         vht_info->vht_mcs.tx_highest = 0;
2759 }
2760
2761 /*
2762  * This function sets up the CFG802.11 specific HT capability fields
2763  * with default values.
2764  *
2765  * The following default values are set -
2766  *      - HT Supported = True
2767  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2768  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2769  *      - HT Capabilities supported by firmware
2770  *      - MCS information, Rx mask = 0xff
2771  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2772  */
2773 static void
2774 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2775                       struct mwifiex_private *priv)
2776 {
2777         int rx_mcs_supp;
2778         struct ieee80211_mcs_info mcs_set;
2779         u8 *mcs = (u8 *)&mcs_set;
2780         struct mwifiex_adapter *adapter = priv->adapter;
2781
2782         ht_info->ht_supported = true;
2783         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2784         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2785
2786         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2787
2788         /* Fill HT capability information */
2789         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2790                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2791         else
2792                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2793
2794         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2795                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2796         else
2797                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2798
2799         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2800                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2801         else
2802                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2803
2804         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2805                 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2806         else
2807                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2808
2809         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2810                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2811         else
2812                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2813
2814         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2815                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2816         else
2817                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2818
2819         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2820                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2821         else
2822                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2823
2824         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2825                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2826         else
2827                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2828
2829         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2830         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2831
2832         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2833         /* Set MCS for 1x1/2x2 */
2834         memset(mcs, 0xff, rx_mcs_supp);
2835         /* Clear all the other values */
2836         memset(&mcs[rx_mcs_supp], 0,
2837                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2838         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2839             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2840                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2841                 SETHT_MCS32(mcs_set.rx_mask);
2842
2843         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2844
2845         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2846 }
2847
2848 /*
2849  *  create a new virtual interface with the given name and name assign type
2850  */
2851 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2852                                               const char *name,
2853                                               unsigned char name_assign_type,
2854                                               enum nl80211_iftype type,
2855                                               struct vif_params *params)
2856 {
2857         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2858         struct mwifiex_private *priv;
2859         struct net_device *dev;
2860         void *mdev_priv;
2861         int ret;
2862
2863         if (!adapter)
2864                 return ERR_PTR(-EFAULT);
2865
2866         switch (type) {
2867         case NL80211_IFTYPE_UNSPECIFIED:
2868         case NL80211_IFTYPE_STATION:
2869         case NL80211_IFTYPE_ADHOC:
2870                 if (adapter->curr_iface_comb.sta_intf ==
2871                     adapter->iface_limit.sta_intf) {
2872                         mwifiex_dbg(adapter, ERROR,
2873                                     "cannot create multiple sta/adhoc ifaces\n");
2874                         return ERR_PTR(-EINVAL);
2875                 }
2876
2877                 priv = mwifiex_get_unused_priv_by_bss_type(
2878                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2879                 if (!priv) {
2880                         mwifiex_dbg(adapter, ERROR,
2881                                     "could not get free private struct\n");
2882                         return ERR_PTR(-EFAULT);
2883                 }
2884
2885                 priv->wdev.wiphy = wiphy;
2886                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2887
2888                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2889                         priv->bss_mode = NL80211_IFTYPE_STATION;
2890                 else
2891                         priv->bss_mode = type;
2892
2893                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2894                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2895                 priv->bss_priority = 0;
2896                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2897
2898                 break;
2899         case NL80211_IFTYPE_AP:
2900                 if (adapter->curr_iface_comb.uap_intf ==
2901                     adapter->iface_limit.uap_intf) {
2902                         mwifiex_dbg(adapter, ERROR,
2903                                     "cannot create multiple AP ifaces\n");
2904                         return ERR_PTR(-EINVAL);
2905                 }
2906
2907                 priv = mwifiex_get_unused_priv_by_bss_type(
2908                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
2909                 if (!priv) {
2910                         mwifiex_dbg(adapter, ERROR,
2911                                     "could not get free private struct\n");
2912                         return ERR_PTR(-EFAULT);
2913                 }
2914
2915                 priv->wdev.wiphy = wiphy;
2916                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2917
2918                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2919                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2920                 priv->bss_priority = 0;
2921                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2922                 priv->bss_started = 0;
2923                 priv->bss_mode = type;
2924
2925                 break;
2926         case NL80211_IFTYPE_P2P_CLIENT:
2927                 if (adapter->curr_iface_comb.p2p_intf ==
2928                     adapter->iface_limit.p2p_intf) {
2929                         mwifiex_dbg(adapter, ERROR,
2930                                     "cannot create multiple P2P ifaces\n");
2931                         return ERR_PTR(-EINVAL);
2932                 }
2933
2934                 priv = mwifiex_get_unused_priv_by_bss_type(
2935                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
2936                 if (!priv) {
2937                         mwifiex_dbg(adapter, ERROR,
2938                                     "could not get free private struct\n");
2939                         return ERR_PTR(-EFAULT);
2940                 }
2941
2942                 priv->wdev.wiphy = wiphy;
2943                 /* At start-up, wpa_supplicant tries to change the interface
2944                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2945                  */
2946                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2947                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2948
2949                 /* Setting bss_type to P2P tells firmware that this interface
2950                  * is receiving P2P peers found during find phase and doing
2951                  * action frame handshake.
2952                  */
2953                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2954
2955                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2956                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2957                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2958                 priv->bss_started = 0;
2959
2960                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2961                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2962                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2963                         return ERR_PTR(-EFAULT);
2964                 }
2965
2966                 break;
2967         default:
2968                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2969                 return ERR_PTR(-EINVAL);
2970         }
2971
2972         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2973                                name_assign_type, ether_setup,
2974                                IEEE80211_NUM_ACS, 1);
2975         if (!dev) {
2976                 mwifiex_dbg(adapter, ERROR,
2977                             "no memory available for netdevice\n");
2978                 ret = -ENOMEM;
2979                 goto err_alloc_netdev;
2980         }
2981
2982         mwifiex_init_priv_params(priv, dev);
2983
2984         priv->netdev = dev;
2985
2986         if (!adapter->mfg_mode) {
2987                 mwifiex_set_mac_address(priv, dev, false, NULL);
2988
2989                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
2990                                        HostCmd_ACT_GEN_SET, 0, NULL, true);
2991                 if (ret)
2992                         goto err_set_bss_mode;
2993
2994                 ret = mwifiex_sta_init_cmd(priv, false, false);
2995                 if (ret)
2996                         goto err_sta_init;
2997         }
2998
2999         mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3000         if (adapter->is_hw_11ac_capable)
3001                 mwifiex_setup_vht_caps(
3002                         &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3003
3004         if (adapter->config_bands & BAND_A)
3005                 mwifiex_setup_ht_caps(
3006                         &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3007
3008         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3009                 mwifiex_setup_vht_caps(
3010                         &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3011
3012         dev_net_set(dev, wiphy_net(wiphy));
3013         dev->ieee80211_ptr = &priv->wdev;
3014         dev->ieee80211_ptr->iftype = priv->bss_mode;
3015         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3016
3017         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3018         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3019         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
3020         dev->ethtool_ops = &mwifiex_ethtool_ops;
3021
3022         mdev_priv = netdev_priv(dev);
3023         *((unsigned long *) mdev_priv) = (unsigned long) priv;
3024
3025         SET_NETDEV_DEV(dev, adapter->dev);
3026
3027         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3028                                                   WQ_HIGHPRI |
3029                                                   WQ_MEM_RECLAIM |
3030                                                   WQ_UNBOUND, 1, name);
3031         if (!priv->dfs_cac_workqueue) {
3032                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3033                 ret = -ENOMEM;
3034                 goto err_alloc_cac;
3035         }
3036
3037         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3038
3039         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3040                                                       WQ_HIGHPRI | WQ_UNBOUND |
3041                                                       WQ_MEM_RECLAIM, 1, name);
3042         if (!priv->dfs_chan_sw_workqueue) {
3043                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3044                 ret = -ENOMEM;
3045                 goto err_alloc_chsw;
3046         }
3047
3048         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3049                           mwifiex_dfs_chan_sw_work_queue);
3050
3051         mutex_init(&priv->async_mutex);
3052
3053         /* Register network device */
3054         if (register_netdevice(dev)) {
3055                 mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3056                 ret = -EFAULT;
3057                 goto err_reg_netdev;
3058         }
3059
3060         mwifiex_dbg(adapter, INFO,
3061                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
3062
3063 #ifdef CONFIG_DEBUG_FS
3064         mwifiex_dev_debugfs_init(priv);
3065 #endif
3066
3067         switch (type) {
3068         case NL80211_IFTYPE_UNSPECIFIED:
3069         case NL80211_IFTYPE_STATION:
3070         case NL80211_IFTYPE_ADHOC:
3071                 adapter->curr_iface_comb.sta_intf++;
3072                 break;
3073         case NL80211_IFTYPE_AP:
3074                 adapter->curr_iface_comb.uap_intf++;
3075                 break;
3076         case NL80211_IFTYPE_P2P_CLIENT:
3077                 adapter->curr_iface_comb.p2p_intf++;
3078                 break;
3079         default:
3080                 /* This should be dead code; checked above */
3081                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3082                 return ERR_PTR(-EINVAL);
3083         }
3084
3085         return &priv->wdev;
3086
3087 err_reg_netdev:
3088         destroy_workqueue(priv->dfs_chan_sw_workqueue);
3089         priv->dfs_chan_sw_workqueue = NULL;
3090 err_alloc_chsw:
3091         destroy_workqueue(priv->dfs_cac_workqueue);
3092         priv->dfs_cac_workqueue = NULL;
3093 err_alloc_cac:
3094         free_netdev(dev);
3095         priv->netdev = NULL;
3096 err_sta_init:
3097 err_set_bss_mode:
3098 err_alloc_netdev:
3099         memset(&priv->wdev, 0, sizeof(priv->wdev));
3100         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3101         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3102         return ERR_PTR(ret);
3103 }
3104 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3105
3106 /*
3107  * del_virtual_intf: remove the virtual interface determined by dev
3108  */
3109 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3110 {
3111         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3112         struct mwifiex_adapter *adapter = priv->adapter;
3113         struct sk_buff *skb, *tmp;
3114
3115 #ifdef CONFIG_DEBUG_FS
3116         mwifiex_dev_debugfs_remove(priv);
3117 #endif
3118
3119         if (priv->sched_scanning)
3120                 priv->sched_scanning = false;
3121
3122         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3123
3124         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3125                 skb_unlink(skb, &priv->bypass_txq);
3126                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3127         }
3128
3129         if (netif_carrier_ok(priv->netdev))
3130                 netif_carrier_off(priv->netdev);
3131
3132         if (wdev->netdev->reg_state == NETREG_REGISTERED)
3133                 unregister_netdevice(wdev->netdev);
3134
3135         if (priv->dfs_cac_workqueue) {
3136                 flush_workqueue(priv->dfs_cac_workqueue);
3137                 destroy_workqueue(priv->dfs_cac_workqueue);
3138                 priv->dfs_cac_workqueue = NULL;
3139         }
3140
3141         if (priv->dfs_chan_sw_workqueue) {
3142                 flush_workqueue(priv->dfs_chan_sw_workqueue);
3143                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3144                 priv->dfs_chan_sw_workqueue = NULL;
3145         }
3146         /* Clear the priv in adapter */
3147         priv->netdev = NULL;
3148
3149         switch (priv->bss_mode) {
3150         case NL80211_IFTYPE_UNSPECIFIED:
3151         case NL80211_IFTYPE_STATION:
3152         case NL80211_IFTYPE_ADHOC:
3153                 adapter->curr_iface_comb.sta_intf--;
3154                 break;
3155         case NL80211_IFTYPE_AP:
3156                 adapter->curr_iface_comb.uap_intf--;
3157                 break;
3158         case NL80211_IFTYPE_P2P_CLIENT:
3159         case NL80211_IFTYPE_P2P_GO:
3160                 adapter->curr_iface_comb.p2p_intf--;
3161                 break;
3162         default:
3163                 mwifiex_dbg(adapter, ERROR,
3164                             "del_virtual_intf: type not supported\n");
3165                 break;
3166         }
3167
3168         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3169
3170         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3171             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3172                 kfree(priv->hist_data);
3173
3174         return 0;
3175 }
3176 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3177
3178 static bool
3179 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3180                              u8 max_byte_seq)
3181 {
3182         int j, k, valid_byte_cnt = 0;
3183         bool dont_care_byte = false;
3184
3185         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3186                 for (k = 0; k < 8; k++) {
3187                         if (pat->mask[j] & 1 << k) {
3188                                 memcpy(byte_seq + valid_byte_cnt,
3189                                        &pat->pattern[j * 8 + k], 1);
3190                                 valid_byte_cnt++;
3191                                 if (dont_care_byte)
3192                                         return false;
3193                         } else {
3194                                 if (valid_byte_cnt)
3195                                         dont_care_byte = true;
3196                         }
3197
3198                         /* wildcard bytes record as the offset
3199                          * before the valid byte
3200                          */
3201                         if (!valid_byte_cnt && !dont_care_byte)
3202                                 pat->pkt_offset++;
3203
3204                         if (valid_byte_cnt > max_byte_seq)
3205                                 return false;
3206                 }
3207         }
3208
3209         byte_seq[max_byte_seq] = valid_byte_cnt;
3210
3211         return true;
3212 }
3213
3214 #ifdef CONFIG_PM
3215 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3216                                            struct mwifiex_mef_entry *mef_entry)
3217 {
3218         int i, filt_num = 0, num_ipv4 = 0;
3219         struct in_device *in_dev;
3220         struct in_ifaddr *ifa;
3221         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3222         struct mwifiex_adapter *adapter = priv->adapter;
3223
3224         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3225         mef_entry->action = MEF_ACTION_AUTO_ARP;
3226
3227         /* Enable ARP offload feature */
3228         memset(ips, 0, sizeof(ips));
3229         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3230                 if (adapter->priv[i]->netdev) {
3231                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3232                         if (!in_dev)
3233                                 continue;
3234                         ifa = in_dev->ifa_list;
3235                         if (!ifa || !ifa->ifa_local)
3236                                 continue;
3237                         ips[i] = ifa->ifa_local;
3238                         num_ipv4++;
3239                 }
3240         }
3241
3242         for (i = 0; i < num_ipv4; i++) {
3243                 if (!ips[i])
3244                         continue;
3245                 mef_entry->filter[filt_num].repeat = 1;
3246                 memcpy(mef_entry->filter[filt_num].byte_seq,
3247                        (u8 *)&ips[i], sizeof(ips[i]));
3248                 mef_entry->filter[filt_num].
3249                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3250                         sizeof(ips[i]);
3251                 mef_entry->filter[filt_num].offset = 46;
3252                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3253                 if (filt_num) {
3254                         mef_entry->filter[filt_num].filt_action =
3255                                 TYPE_OR;
3256                 }
3257                 filt_num++;
3258         }
3259
3260         mef_entry->filter[filt_num].repeat = 1;
3261         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3262         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3263         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3264         mef_entry->filter[filt_num].offset = 20;
3265         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3266         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3267 }
3268
3269 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3270                                         struct mwifiex_ds_mef_cfg *mef_cfg,
3271                                         struct mwifiex_mef_entry *mef_entry,
3272                                         struct cfg80211_wowlan *wowlan)
3273 {
3274         int i, filt_num = 0, ret = 0;
3275         bool first_pat = true;
3276         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3277         static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3278         static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3279
3280         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3281         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3282
3283         for (i = 0; i < wowlan->n_patterns; i++) {
3284                 memset(byte_seq, 0, sizeof(byte_seq));
3285                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3286                                         byte_seq,
3287                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3288                         mwifiex_dbg(priv->adapter, ERROR,
3289                                     "Pattern not supported\n");
3290                         return -EOPNOTSUPP;
3291                 }
3292
3293                 if (!wowlan->patterns[i].pkt_offset) {
3294                         if (!(byte_seq[0] & 0x01) &&
3295                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3296                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3297                                 continue;
3298                         } else if (is_broadcast_ether_addr(byte_seq)) {
3299                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3300                                 continue;
3301                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3302                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3303                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3304                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3305                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3306                                 continue;
3307                         }
3308                 }
3309                 mef_entry->filter[filt_num].repeat = 1;
3310                 mef_entry->filter[filt_num].offset =
3311                         wowlan->patterns[i].pkt_offset;
3312                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3313                                 sizeof(byte_seq));
3314                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3315
3316                 if (first_pat) {
3317                         first_pat = false;
3318                         mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3319                 } else {
3320                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3321                 }
3322
3323                 filt_num++;
3324         }
3325
3326         if (wowlan->magic_pkt) {
3327                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3328                 mef_entry->filter[filt_num].repeat = 16;
3329                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3330                                 ETH_ALEN);
3331                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3332                         ETH_ALEN;
3333                 mef_entry->filter[filt_num].offset = 28;
3334                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3335                 if (filt_num)
3336                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3337
3338                 filt_num++;
3339                 mef_entry->filter[filt_num].repeat = 16;
3340                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3341                                 ETH_ALEN);
3342                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3343                         ETH_ALEN;
3344                 mef_entry->filter[filt_num].offset = 56;
3345                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3346                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3347                 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3348         }
3349         return ret;
3350 }
3351
3352 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3353                                   struct cfg80211_wowlan *wowlan)
3354 {
3355         int ret = 0, num_entries = 1;
3356         struct mwifiex_ds_mef_cfg mef_cfg;
3357         struct mwifiex_mef_entry *mef_entry;
3358
3359         if (wowlan->n_patterns || wowlan->magic_pkt)
3360                 num_entries++;
3361
3362         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3363         if (!mef_entry)
3364                 return -ENOMEM;
3365
3366         memset(&mef_cfg, 0, sizeof(mef_cfg));
3367         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3368                 MWIFIEX_CRITERIA_UNICAST;
3369         mef_cfg.num_entries = num_entries;
3370         mef_cfg.mef_entry = mef_entry;
3371
3372         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3373
3374         if (wowlan->n_patterns || wowlan->magic_pkt) {
3375                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3376                                                    &mef_entry[1], wowlan);
3377                 if (ret)
3378                         goto err;
3379         }
3380
3381         if (!mef_cfg.criteria)
3382                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3383                         MWIFIEX_CRITERIA_UNICAST |
3384                         MWIFIEX_CRITERIA_MULTICAST;
3385
3386         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3387                         HostCmd_ACT_GEN_SET, 0,
3388                         &mef_cfg, true);
3389
3390 err:
3391         kfree(mef_entry);
3392         return ret;
3393 }
3394
3395 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3396                                     struct cfg80211_wowlan *wowlan)
3397 {
3398         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3399         struct mwifiex_ds_hs_cfg hs_cfg;
3400         int i, ret = 0, retry_num = 10;
3401         struct mwifiex_private *priv;
3402         struct mwifiex_private *sta_priv =
3403                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3404
3405         sta_priv->scan_aborting = true;
3406         for (i = 0; i < adapter->priv_num; i++) {
3407                 priv = adapter->priv[i];
3408                 mwifiex_abort_cac(priv);
3409         }
3410
3411         mwifiex_cancel_all_pending_cmd(adapter);
3412
3413         for (i = 0; i < adapter->priv_num; i++) {
3414                 priv = adapter->priv[i];
3415                 if (priv && priv->netdev)
3416                         netif_device_detach(priv->netdev);
3417         }
3418
3419         for (i = 0; i < retry_num; i++) {
3420                 if (!mwifiex_wmm_lists_empty(adapter) ||
3421                     !mwifiex_bypass_txlist_empty(adapter) ||
3422                     !skb_queue_empty(&adapter->tx_data_q))
3423                         usleep_range(10000, 15000);
3424                 else
3425                         break;
3426         }
3427
3428         if (!wowlan) {
3429                 mwifiex_dbg(adapter, ERROR,
3430                             "None of the WOWLAN triggers enabled\n");
3431                 ret = 0;
3432                 goto done;
3433         }
3434
3435         if (!sta_priv->media_connected && !wowlan->nd_config) {
3436                 mwifiex_dbg(adapter, ERROR,
3437                             "Can not configure WOWLAN in disconnected state\n");
3438                 ret = 0;
3439                 goto done;
3440         }
3441
3442         ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3443         if (ret) {
3444                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3445                 goto done;
3446         }
3447
3448         memset(&hs_cfg, 0, sizeof(hs_cfg));
3449         hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3450
3451         if (wowlan->nd_config) {
3452                 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3453                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3454                 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3455                                                   wowlan->nd_config);
3456         }
3457
3458         if (wowlan->disconnect) {
3459                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3460                 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3461         }
3462
3463         hs_cfg.is_invoke_hostcmd = false;
3464         hs_cfg.gpio = adapter->hs_cfg.gpio;
3465         hs_cfg.gap = adapter->hs_cfg.gap;
3466         ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3467                                     MWIFIEX_SYNC_CMD, &hs_cfg);
3468         if (ret)
3469                 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3470
3471 done:
3472         sta_priv->scan_aborting = false;
3473         return ret;
3474 }
3475
3476 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3477 {
3478         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3479         struct mwifiex_private *priv;
3480         struct mwifiex_ds_wakeup_reason wakeup_reason;
3481         struct cfg80211_wowlan_wakeup wakeup_report;
3482         int i;
3483         bool report_wakeup_reason = true;
3484
3485         for (i = 0; i < adapter->priv_num; i++) {
3486                 priv = adapter->priv[i];
3487                 if (priv && priv->netdev)
3488                         netif_device_attach(priv->netdev);
3489         }
3490
3491         if (!wiphy->wowlan_config)
3492                 goto done;
3493
3494         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3495         mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3496                                   &wakeup_reason);
3497         memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3498
3499         wakeup_report.pattern_idx = -1;
3500
3501         switch (wakeup_reason.hs_wakeup_reason) {
3502         case NO_HSWAKEUP_REASON:
3503                 break;
3504         case BCAST_DATA_MATCHED:
3505                 break;
3506         case MCAST_DATA_MATCHED:
3507                 break;
3508         case UCAST_DATA_MATCHED:
3509                 break;
3510         case MASKTABLE_EVENT_MATCHED:
3511                 break;
3512         case NON_MASKABLE_EVENT_MATCHED:
3513                 if (wiphy->wowlan_config->disconnect)
3514                         wakeup_report.disconnect = true;
3515                 if (wiphy->wowlan_config->nd_config)
3516                         wakeup_report.net_detect = adapter->nd_info;
3517                 break;
3518         case NON_MASKABLE_CONDITION_MATCHED:
3519                 break;
3520         case MAGIC_PATTERN_MATCHED:
3521                 if (wiphy->wowlan_config->magic_pkt)
3522                         wakeup_report.magic_pkt = true;
3523                 if (wiphy->wowlan_config->n_patterns)
3524                         wakeup_report.pattern_idx = 1;
3525                 break;
3526         case GTK_REKEY_FAILURE:
3527                 if (wiphy->wowlan_config->gtk_rekey_failure)
3528                         wakeup_report.gtk_rekey_failure = true;
3529                 break;
3530         default:
3531                 report_wakeup_reason = false;
3532                 break;
3533         }
3534
3535         if (report_wakeup_reason)
3536                 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3537                                               GFP_KERNEL);
3538
3539 done:
3540         if (adapter->nd_info) {
3541                 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3542                         kfree(adapter->nd_info->matches[i]);
3543                 kfree(adapter->nd_info);
3544                 adapter->nd_info = NULL;
3545         }
3546
3547         return 0;
3548 }
3549
3550 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3551                                        bool enabled)
3552 {
3553         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3554
3555         device_set_wakeup_enable(adapter->dev, enabled);
3556 }
3557
3558 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3559                                   struct cfg80211_gtk_rekey_data *data)
3560 {
3561         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3562
3563         if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3564                 return -EOPNOTSUPP;
3565
3566         return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3567                                 HostCmd_ACT_GEN_SET, 0, data, true);
3568 }
3569
3570 #endif
3571
3572 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3573 {
3574         static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3575         static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3576         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3577
3578         if ((byte_seq[0] & 0x01) &&
3579             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3580                 return PACKET_TYPE_UNICAST;
3581         else if (!memcmp(byte_seq, bc_mac, 4))
3582                 return PACKET_TYPE_BROADCAST;
3583         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3584                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3585                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3586                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3587                 return PACKET_TYPE_MULTICAST;
3588
3589         return 0;
3590 }
3591
3592 static int
3593 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3594                                 struct cfg80211_coalesce_rules *crule,
3595                                 struct mwifiex_coalesce_rule *mrule)
3596 {
3597         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3598         struct filt_field_param *param;
3599         int i;
3600
3601         mrule->max_coalescing_delay = crule->delay;
3602
3603         param = mrule->params;
3604
3605         for (i = 0; i < crule->n_patterns; i++) {
3606                 memset(byte_seq, 0, sizeof(byte_seq));
3607                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3608                                                   byte_seq,
3609                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3610                         mwifiex_dbg(priv->adapter, ERROR,
3611                                     "Pattern not supported\n");
3612                         return -EOPNOTSUPP;
3613                 }
3614
3615                 if (!crule->patterns[i].pkt_offset) {
3616                         u8 pkt_type;
3617
3618                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3619                         if (pkt_type && mrule->pkt_type) {
3620                                 mwifiex_dbg(priv->adapter, ERROR,
3621                                             "Multiple packet types not allowed\n");
3622                                 return -EOPNOTSUPP;
3623                         } else if (pkt_type) {
3624                                 mrule->pkt_type = pkt_type;
3625                                 continue;
3626                         }
3627                 }
3628
3629                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3630                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3631                 else
3632                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3633
3634                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3635                 memcpy(param->operand_byte_stream, byte_seq,
3636                        param->operand_len);
3637                 param->offset = crule->patterns[i].pkt_offset;
3638                 param++;
3639
3640                 mrule->num_of_fields++;
3641         }
3642
3643         if (!mrule->pkt_type) {
3644                 mwifiex_dbg(priv->adapter, ERROR,
3645                             "Packet type can not be determined\n");
3646                 return -EOPNOTSUPP;
3647         }
3648
3649         return 0;
3650 }
3651
3652 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3653                                          struct cfg80211_coalesce *coalesce)
3654 {
3655         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3656         int i, ret;
3657         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3658         struct mwifiex_private *priv =
3659                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3660
3661         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3662         if (!coalesce) {
3663                 mwifiex_dbg(adapter, WARN,
3664                             "Disable coalesce and reset all previous rules\n");
3665                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3666                                         HostCmd_ACT_GEN_SET, 0,
3667                                         &coalesce_cfg, true);
3668         }
3669
3670         coalesce_cfg.num_of_rules = coalesce->n_rules;
3671         for (i = 0; i < coalesce->n_rules; i++) {
3672                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3673                                                       &coalesce_cfg.rule[i]);
3674                 if (ret) {
3675                         mwifiex_dbg(adapter, ERROR,
3676                                     "Recheck the patterns provided for rule %d\n",
3677                                 i + 1);
3678                         return ret;
3679                 }
3680         }
3681
3682         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3683                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3684 }
3685
3686 /* cfg80211 ops handler for tdls_mgmt.
3687  * Function prepares TDLS action frame packets and forwards them to FW
3688  */
3689 static int
3690 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3691                            const u8 *peer, u8 action_code, u8 dialog_token,
3692                            u16 status_code, u32 peer_capability,
3693                            bool initiator, const u8 *extra_ies,
3694                            size_t extra_ies_len)
3695 {
3696         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3697         int ret;
3698
3699         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3700                 return -ENOTSUPP;
3701
3702         /* make sure we are in station mode and connected */
3703         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3704                 return -ENOTSUPP;
3705
3706         switch (action_code) {
3707         case WLAN_TDLS_SETUP_REQUEST:
3708                 mwifiex_dbg(priv->adapter, MSG,
3709                             "Send TDLS Setup Request to %pM status_code=%d\n",
3710                             peer, status_code);
3711                 mwifiex_add_auto_tdls_peer(priv, peer);
3712                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3713                                                    dialog_token, status_code,
3714                                                    extra_ies, extra_ies_len);
3715                 break;
3716         case WLAN_TDLS_SETUP_RESPONSE:
3717                 mwifiex_add_auto_tdls_peer(priv, peer);
3718                 mwifiex_dbg(priv->adapter, MSG,
3719                             "Send TDLS Setup Response to %pM status_code=%d\n",
3720                             peer, status_code);
3721                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3722                                                    dialog_token, status_code,
3723                                                    extra_ies, extra_ies_len);
3724                 break;
3725         case WLAN_TDLS_SETUP_CONFIRM:
3726                 mwifiex_dbg(priv->adapter, MSG,
3727                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3728                             status_code);
3729                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3730                                                    dialog_token, status_code,
3731                                                    extra_ies, extra_ies_len);
3732                 break;
3733         case WLAN_TDLS_TEARDOWN:
3734                 mwifiex_dbg(priv->adapter, MSG,
3735                             "Send TDLS Tear down to %pM\n", peer);
3736                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3737                                                    dialog_token, status_code,
3738                                                    extra_ies, extra_ies_len);
3739                 break;
3740         case WLAN_TDLS_DISCOVERY_REQUEST:
3741                 mwifiex_dbg(priv->adapter, MSG,
3742                             "Send TDLS Discovery Request to %pM\n", peer);
3743                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3744                                                    dialog_token, status_code,
3745                                                    extra_ies, extra_ies_len);
3746                 break;
3747         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3748                 mwifiex_dbg(priv->adapter, MSG,
3749                             "Send TDLS Discovery Response to %pM\n", peer);
3750                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3751                                                    dialog_token, status_code,
3752                                                    extra_ies, extra_ies_len);
3753                 break;
3754         default:
3755                 mwifiex_dbg(priv->adapter, ERROR,
3756                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3757                 ret = -EINVAL;
3758                 break;
3759         }
3760
3761         return ret;
3762 }
3763
3764 static int
3765 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3766                            const u8 *peer, enum nl80211_tdls_operation action)
3767 {
3768         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3769
3770         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3771             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3772                 return -ENOTSUPP;
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 -ENOTSUPP;
3777
3778         mwifiex_dbg(priv->adapter, MSG,
3779                     "TDLS peer=%pM, oper=%d\n", peer, action);
3780
3781         switch (action) {
3782         case NL80211_TDLS_ENABLE_LINK:
3783                 action = MWIFIEX_TDLS_ENABLE_LINK;
3784                 break;
3785         case NL80211_TDLS_DISABLE_LINK:
3786                 action = MWIFIEX_TDLS_DISABLE_LINK;
3787                 break;
3788         case NL80211_TDLS_TEARDOWN:
3789                 /* shouldn't happen!*/
3790                 mwifiex_dbg(priv->adapter, ERROR,
3791                             "tdls_oper: teardown from driver not supported\n");
3792                 return -EINVAL;
3793         case NL80211_TDLS_SETUP:
3794                 /* shouldn't happen!*/
3795                 mwifiex_dbg(priv->adapter, ERROR,
3796                             "tdls_oper: setup from driver not supported\n");
3797                 return -EINVAL;
3798         case NL80211_TDLS_DISCOVERY_REQ:
3799                 /* shouldn't happen!*/
3800                 mwifiex_dbg(priv->adapter, ERROR,
3801                             "tdls_oper: discovery from driver not supported\n");
3802                 return -EINVAL;
3803         default:
3804                 mwifiex_dbg(priv->adapter, ERROR,
3805                             "tdls_oper: operation not supported\n");
3806                 return -ENOTSUPP;
3807         }
3808
3809         return mwifiex_tdls_oper(priv, peer, action);
3810 }
3811
3812 static int
3813 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3814                                   const u8 *addr, u8 oper_class,
3815                                   struct cfg80211_chan_def *chandef)
3816 {
3817         struct mwifiex_sta_node *sta_ptr;
3818         unsigned long flags;
3819         u16 chan;
3820         u8 second_chan_offset, band;
3821         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3822
3823         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3824         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3825         if (!sta_ptr) {
3826                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3827                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3828                           __func__, addr);
3829                 return -ENOENT;
3830         }
3831
3832         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3833               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3834                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3835                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3836                 return -ENOENT;
3837         }
3838
3839         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3840             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3841                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3842                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3843                 return -EALREADY;
3844         }
3845         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3846
3847         chan = chandef->chan->hw_value;
3848         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3849         band = chandef->chan->band;
3850         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3851
3852         return 0;
3853 }
3854
3855 static void
3856 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3857                                          struct net_device *dev,
3858                                          const u8 *addr)
3859 {
3860         struct mwifiex_sta_node *sta_ptr;
3861         unsigned long flags;
3862         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3863
3864         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3865         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3866         if (!sta_ptr) {
3867                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3868                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3869                           __func__, addr);
3870         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3871                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3872                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3873                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3874                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3875                           addr);
3876         } else {
3877                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3878                 mwifiex_stop_tdls_cs(priv, addr);
3879         }
3880 }
3881
3882 static int
3883 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3884                              const u8 *mac, struct station_parameters *params)
3885 {
3886         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3887
3888         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3889                 return -ENOTSUPP;
3890
3891         /* make sure we are in station mode and connected */
3892         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3893                 return -ENOTSUPP;
3894
3895         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3896 }
3897
3898 static int
3899 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3900                                 struct cfg80211_csa_settings *params)
3901 {
3902         struct ieee_types_header *chsw_ie;
3903         struct ieee80211_channel_sw_ie *channel_sw;
3904         int chsw_msec;
3905         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3906
3907         if (priv->adapter->scan_processing) {
3908                 mwifiex_dbg(priv->adapter, ERROR,
3909                             "radar detection: scan in process...\n");
3910                 return -EBUSY;
3911         }
3912
3913         if (priv->wdev.cac_started)
3914                 return -EBUSY;
3915
3916         if (cfg80211_chandef_identical(&params->chandef,
3917                                        &priv->dfs_chandef))
3918                 return -EINVAL;
3919
3920         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3921                                            params->beacon_csa.tail,
3922                                            params->beacon_csa.tail_len);
3923         if (!chsw_ie) {
3924                 mwifiex_dbg(priv->adapter, ERROR,
3925                             "Could not parse channel switch announcement IE\n");
3926                 return -EINVAL;
3927         }
3928
3929         channel_sw = (void *)(chsw_ie + 1);
3930         if (channel_sw->mode) {
3931                 if (netif_carrier_ok(priv->netdev))
3932                         netif_carrier_off(priv->netdev);
3933                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3934         }
3935
3936         if (mwifiex_del_mgmt_ies(priv))
3937                 mwifiex_dbg(priv->adapter, ERROR,
3938                             "Failed to delete mgmt IEs!\n");
3939
3940         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3941                 mwifiex_dbg(priv->adapter, ERROR,
3942                             "%s: setting mgmt ies failed\n", __func__);
3943                 return -EFAULT;
3944         }
3945
3946         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3947         memcpy(&priv->beacon_after, &params->beacon_after,
3948                sizeof(priv->beacon_after));
3949
3950         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3951         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3952                            msecs_to_jiffies(chsw_msec));
3953         return 0;
3954 }
3955
3956 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3957                                         struct wireless_dev *wdev,
3958                                         struct cfg80211_chan_def *chandef)
3959 {
3960         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3961         struct mwifiex_bssdescriptor *curr_bss;
3962         struct ieee80211_channel *chan;
3963         enum nl80211_channel_type chan_type;
3964         enum nl80211_band band;
3965         int freq;
3966         int ret = -ENODATA;
3967
3968         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3969             cfg80211_chandef_valid(&priv->bss_chandef)) {
3970                 *chandef = priv->bss_chandef;
3971                 ret = 0;
3972         } else if (priv->media_connected) {
3973                 curr_bss = &priv->curr_bss_params.bss_descriptor;
3974                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3975                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3976                 chan = ieee80211_get_channel(wiphy, freq);
3977
3978                 if (priv->ht_param_present) {
3979                         chan_type = mwifiex_get_chan_type(priv);
3980                         cfg80211_chandef_create(chandef, chan, chan_type);
3981                 } else {
3982                         cfg80211_chandef_create(chandef, chan,
3983                                                 NL80211_CHAN_NO_HT);
3984                 }
3985                 ret = 0;
3986         }
3987
3988         return ret;
3989 }
3990
3991 #ifdef CONFIG_NL80211_TESTMODE
3992
3993 enum mwifiex_tm_attr {
3994         __MWIFIEX_TM_ATTR_INVALID       = 0,
3995         MWIFIEX_TM_ATTR_CMD             = 1,
3996         MWIFIEX_TM_ATTR_DATA            = 2,
3997
3998         /* keep last */
3999         __MWIFIEX_TM_ATTR_AFTER_LAST,
4000         MWIFIEX_TM_ATTR_MAX             = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4001 };
4002
4003 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4004         [MWIFIEX_TM_ATTR_CMD]           = { .type = NLA_U32 },
4005         [MWIFIEX_TM_ATTR_DATA]          = { .type = NLA_BINARY,
4006                                             .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4007 };
4008
4009 enum mwifiex_tm_command {
4010         MWIFIEX_TM_CMD_HOSTCMD  = 0,
4011 };
4012
4013 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4014                           void *data, int len)
4015 {
4016         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4017         struct mwifiex_ds_misc_cmd *hostcmd;
4018         struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4019         struct sk_buff *skb;
4020         int err;
4021
4022         if (!priv)
4023                 return -EINVAL;
4024
4025         err = nla_parse(tb, MWIFIEX_TM_ATTR_MAX, data, len, mwifiex_tm_policy,
4026                         NULL);
4027         if (err)
4028                 return err;
4029
4030         if (!tb[MWIFIEX_TM_ATTR_CMD])
4031                 return -EINVAL;
4032
4033         switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4034         case MWIFIEX_TM_CMD_HOSTCMD:
4035                 if (!tb[MWIFIEX_TM_ATTR_DATA])
4036                         return -EINVAL;
4037
4038                 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4039                 if (!hostcmd)
4040                         return -ENOMEM;
4041
4042                 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4043                 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4044                        hostcmd->len);
4045
4046                 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4047                         dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4048                         return -EFAULT;
4049                 }
4050
4051                 /* process hostcmd response*/
4052                 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4053                 if (!skb)
4054                         return -ENOMEM;
4055                 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4056                               hostcmd->len, hostcmd->cmd);
4057                 if (err) {
4058                         kfree_skb(skb);
4059                         return -EMSGSIZE;
4060                 }
4061
4062                 err = cfg80211_testmode_reply(skb);
4063                 kfree(hostcmd);
4064                 return err;
4065         default:
4066                 return -EOPNOTSUPP;
4067         }
4068 }
4069 #endif
4070
4071 static int
4072 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4073                                        struct net_device *dev,
4074                                        struct cfg80211_chan_def *chandef,
4075                                        u32 cac_time_ms)
4076 {
4077         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4078         struct mwifiex_radar_params radar_params;
4079
4080         if (priv->adapter->scan_processing) {
4081                 mwifiex_dbg(priv->adapter, ERROR,
4082                             "radar detection: scan already in process...\n");
4083                 return -EBUSY;
4084         }
4085
4086         if (!mwifiex_is_11h_active(priv)) {
4087                 mwifiex_dbg(priv->adapter, INFO,
4088                             "Enable 11h extensions in FW\n");
4089                 if (mwifiex_11h_activate(priv, true)) {
4090                         mwifiex_dbg(priv->adapter, ERROR,
4091                                     "Failed to activate 11h extensions!!");
4092                         return -1;
4093                 }
4094                 priv->state_11h.is_11h_active = true;
4095         }
4096
4097         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4098         radar_params.chandef = chandef;
4099         radar_params.cac_time_ms = cac_time_ms;
4100
4101         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4102
4103         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4104                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4105                 return -1;
4106
4107         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4108                            msecs_to_jiffies(cac_time_ms));
4109         return 0;
4110 }
4111
4112 static int
4113 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4114                                 const u8 *mac,
4115                                 struct station_parameters *params)
4116 {
4117         int ret;
4118         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4119
4120         /* we support change_station handler only for TDLS peers*/
4121         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4122                 return -ENOTSUPP;
4123
4124         /* make sure we are in station mode and connected */
4125         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4126                 return -ENOTSUPP;
4127
4128         priv->sta_params = params;
4129
4130         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4131         priv->sta_params = NULL;
4132
4133         return ret;
4134 }
4135
4136 /* station cfg80211 operations */
4137 static struct cfg80211_ops mwifiex_cfg80211_ops = {
4138         .add_virtual_intf = mwifiex_add_virtual_intf,
4139         .del_virtual_intf = mwifiex_del_virtual_intf,
4140         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4141         .scan = mwifiex_cfg80211_scan,
4142         .connect = mwifiex_cfg80211_connect,
4143         .disconnect = mwifiex_cfg80211_disconnect,
4144         .get_station = mwifiex_cfg80211_get_station,
4145         .dump_station = mwifiex_cfg80211_dump_station,
4146         .dump_survey = mwifiex_cfg80211_dump_survey,
4147         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4148         .join_ibss = mwifiex_cfg80211_join_ibss,
4149         .leave_ibss = mwifiex_cfg80211_leave_ibss,
4150         .add_key = mwifiex_cfg80211_add_key,
4151         .del_key = mwifiex_cfg80211_del_key,
4152         .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4153         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4154         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
4155         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4156         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4157         .set_default_key = mwifiex_cfg80211_set_default_key,
4158         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4159         .set_tx_power = mwifiex_cfg80211_set_tx_power,
4160         .get_tx_power = mwifiex_cfg80211_get_tx_power,
4161         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4162         .start_ap = mwifiex_cfg80211_start_ap,
4163         .stop_ap = mwifiex_cfg80211_stop_ap,
4164         .change_beacon = mwifiex_cfg80211_change_beacon,
4165         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4166         .set_antenna = mwifiex_cfg80211_set_antenna,
4167         .get_antenna = mwifiex_cfg80211_get_antenna,
4168         .del_station = mwifiex_cfg80211_del_station,
4169         .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4170         .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4171 #ifdef CONFIG_PM
4172         .suspend = mwifiex_cfg80211_suspend,
4173         .resume = mwifiex_cfg80211_resume,
4174         .set_wakeup = mwifiex_cfg80211_set_wakeup,
4175         .set_rekey_data = mwifiex_set_rekey_data,
4176 #endif
4177         .set_coalesce = mwifiex_cfg80211_set_coalesce,
4178         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4179         .tdls_oper = mwifiex_cfg80211_tdls_oper,
4180         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4181         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4182         .add_station = mwifiex_cfg80211_add_station,
4183         .change_station = mwifiex_cfg80211_change_station,
4184         CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4185         .get_channel = mwifiex_cfg80211_get_channel,
4186         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4187         .channel_switch = mwifiex_cfg80211_channel_switch,
4188 };
4189
4190 #ifdef CONFIG_PM
4191 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4192         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4193                 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4194                 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4195         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4196         .pattern_min_len = 1,
4197         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4198         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4199         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4200 };
4201
4202 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4203         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4204                  WIPHY_WOWLAN_NET_DETECT,
4205         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4206         .pattern_min_len = 1,
4207         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4208         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4209         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4210 };
4211 #endif
4212
4213 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4214 {
4215         if (!alpha2 || strlen(alpha2) != 2)
4216                 return false;
4217
4218         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4219                 return true;
4220
4221         return false;
4222 }
4223
4224 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4225         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4226         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4227         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4228         .pattern_min_len = 1,
4229         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4230         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4231 };
4232
4233 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4234 {
4235         u32 n_channels_bg, n_channels_a = 0;
4236
4237         n_channels_bg = mwifiex_band_2ghz.n_channels;
4238
4239         if (adapter->config_bands & BAND_A)
4240                 n_channels_a = mwifiex_band_5ghz.n_channels;
4241
4242         /* allocate twice the number total channels, since the driver issues an
4243          * additional active scan request for hidden SSIDs on passive channels.
4244          */
4245         adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4246         adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats),
4247                                                  adapter->num_in_chan_stats));
4248
4249         if (!adapter->chan_stats)
4250                 return -ENOMEM;
4251
4252         return 0;
4253 }
4254
4255 /*
4256  * This function registers the device with CFG802.11 subsystem.
4257  *
4258  * The function creates the wireless device/wiphy, populates it with
4259  * default parameters and handler function pointers, and finally
4260  * registers the device.
4261  */
4262
4263 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4264 {
4265         int ret;
4266         void *wdev_priv;
4267         struct wiphy *wiphy;
4268         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4269         u8 *country_code;
4270         u32 thr, retry;
4271
4272         /* create a new wiphy for use with cfg80211 */
4273         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4274                           sizeof(struct mwifiex_adapter *));
4275         if (!wiphy) {
4276                 mwifiex_dbg(adapter, ERROR,
4277                             "%s: creating new wiphy\n", __func__);
4278                 return -ENOMEM;
4279         }
4280         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4281         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4282         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4283         wiphy->max_remain_on_channel_duration = 5000;
4284         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4285                                  BIT(NL80211_IFTYPE_ADHOC) |
4286                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
4287                                  BIT(NL80211_IFTYPE_P2P_GO) |
4288                                  BIT(NL80211_IFTYPE_AP);
4289
4290         wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4291         if (adapter->config_bands & BAND_A)
4292                 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4293         else
4294                 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4295
4296         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4297                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4298         else if (adapter->is_hw_11ac_capable)
4299                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4300         else
4301                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4302         wiphy->n_iface_combinations = 1;
4303
4304         /* Initialize cipher suits */
4305         wiphy->cipher_suites = mwifiex_cipher_suites;
4306         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4307
4308         if (adapter->regd) {
4309                 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4310                                            REGULATORY_DISABLE_BEACON_HINTS |
4311                                            REGULATORY_COUNTRY_IE_IGNORE;
4312                 wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4313         }
4314
4315         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4316         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4317         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4318                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4319                         WIPHY_FLAG_AP_UAPSD |
4320                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4321                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4322                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
4323
4324         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4325                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4326                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4327
4328 #ifdef CONFIG_PM
4329         if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4330                 wiphy->wowlan = &mwifiex_wowlan_support;
4331         else
4332                 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4333 #endif
4334
4335         wiphy->coalesce = &mwifiex_coalesce_support;
4336
4337         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4338                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4339                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4340
4341         wiphy->max_sched_scan_reqs = 1;
4342         wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4343         wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4344         wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4345
4346         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4347         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4348
4349         wiphy->features |= NL80211_FEATURE_HT_IBSS |
4350                            NL80211_FEATURE_INACTIVITY_TIMER |
4351                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
4352                            NL80211_FEATURE_NEED_OBSS_SCAN;
4353
4354         if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4355                 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4356                                    NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4357                                    NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4358
4359         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4360                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4361
4362         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4363                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4364
4365         /* Reserve space for mwifiex specific private data for BSS */
4366         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4367
4368         wiphy->reg_notifier = mwifiex_reg_notifier;
4369
4370         /* Set struct mwifiex_adapter pointer in wiphy_priv */
4371         wdev_priv = wiphy_priv(wiphy);
4372         *(unsigned long *)wdev_priv = (unsigned long)adapter;
4373
4374         set_wiphy_dev(wiphy, priv->adapter->dev);
4375
4376         ret = wiphy_register(wiphy);
4377         if (ret < 0) {
4378                 mwifiex_dbg(adapter, ERROR,
4379                             "%s: wiphy_register failed: %d\n", __func__, ret);
4380                 wiphy_free(wiphy);
4381                 return ret;
4382         }
4383
4384         if (!adapter->regd) {
4385                 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4386                         mwifiex_dbg(adapter, INFO,
4387                                     "driver hint alpha2: %2.2s\n", reg_alpha2);
4388                         regulatory_hint(wiphy, reg_alpha2);
4389                 } else {
4390                         if (adapter->region_code == 0x00) {
4391                                 mwifiex_dbg(adapter, WARN,
4392                                             "Ignore world regulatory domain\n");
4393                         } else {
4394                                 wiphy->regulatory_flags |=
4395                                         REGULATORY_DISABLE_BEACON_HINTS |
4396                                         REGULATORY_COUNTRY_IE_IGNORE;
4397                                 country_code =
4398                                         mwifiex_11d_code_2_region(
4399                                                 adapter->region_code);
4400                                 if (country_code &&
4401                                     regulatory_hint(wiphy, country_code))
4402                                         mwifiex_dbg(priv->adapter, ERROR,
4403                                                     "regulatory_hint() failed\n");
4404                         }
4405                 }
4406         }
4407
4408         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4409                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4410         wiphy->frag_threshold = thr;
4411         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4412                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4413         wiphy->rts_threshold = thr;
4414         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4415                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4416         wiphy->retry_short = (u8) retry;
4417         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4418                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4419         wiphy->retry_long = (u8) retry;
4420
4421         adapter->wiphy = wiphy;
4422         return ret;
4423 }