drivers/net/wireless/mwifiex/cfg80211.c

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011, 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
  23 static char *reg_alpha2;
  24 module_param(reg_alpha2, charp, 0);
  25
  26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  27         {
  28                 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
  29                                    BIT(NL80211_IFTYPE_P2P_GO) |
  30                                    BIT(NL80211_IFTYPE_P2P_CLIENT),
  31         },
  32         {
  33                 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
  38         .limits = mwifiex_ap_sta_limits,
  39         .num_different_channels = 1,
  40         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  41         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  42         .beacon_int_infra_match = true,
  43 };
  44
  45 static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
  46         .n_reg_rules = 7,
  47         .alpha2 =  "99",
  48         .reg_rules = {
  49                 /* Channel 1 - 11 */
  50                 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
  51                 /* Channel 12 - 13 */
  52                 REG_RULE(2467-10, 2472+10, 20, 3, 20,
  53                          NL80211_RRF_NO_IR),
  54                 /* Channel 14 */
  55                 REG_RULE(2484-10, 2484+10, 20, 3, 20,
  56                          NL80211_RRF_NO_IR |
  57                          NL80211_RRF_NO_OFDM),
  58                 /* Channel 36 - 48 */
  59                 REG_RULE(5180-10, 5240+10, 40, 3, 20,
  60                          NL80211_RRF_NO_IR),
  61                 /* Channel 149 - 165 */
  62                 REG_RULE(5745-10, 5825+10, 40, 3, 20,
  63                          NL80211_RRF_NO_IR),
  64                 /* Channel 52 - 64 */
  65                 REG_RULE(5260-10, 5320+10, 40, 3, 30,
  66                          NL80211_RRF_NO_IR |
  67                          NL80211_RRF_DFS),
  68                 /* Channel 100 - 140 */
  69                 REG_RULE(5500-10, 5700+10, 40, 3, 30,
  70                          NL80211_RRF_NO_IR |
  71                          NL80211_RRF_DFS),
  72         }
  73 };
  74
  75 /*
  76  * This function maps the nl802.11 channel type into driver channel type.
  77  *
  78  * The mapping is as follows -
  79  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  81  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  82  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  83  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  84  */
  85 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  86 {
  87         switch (chan_type) {
  88         case NL80211_CHAN_NO_HT:
  89         case NL80211_CHAN_HT20:
  90                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  91         case NL80211_CHAN_HT40PLUS:
  92                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  93         case NL80211_CHAN_HT40MINUS:
  94                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  95         default:
  96                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  97         }
  98 }
  99
 100 /*
 101  * This function checks whether WEP is set.
 102  */
 103 static int
 104 mwifiex_is_alg_wep(u32 cipher)
 105 {
 106         switch (cipher) {
 107         case WLAN_CIPHER_SUITE_WEP40:
 108         case WLAN_CIPHER_SUITE_WEP104:
 109                 return 1;
 110         default:
 111                 break;
 112         }
 113
 114         return 0;
 115 }
 116
 117 /*
 118  * This function retrieves the private structure from kernel wiphy structure.
 119  */
 120 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 121 {
 122         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 123 }
 124
 125 /*
 126  * CFG802.11 operation handler to delete a network key.
 127  */
 128 static int
 129 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 130                          u8 key_index, bool pairwise, const u8 *mac_addr)
 131 {
 132         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 133         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 134         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 135
 136         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 137                 wiphy_err(wiphy, "deleting the crypto keys\n");
 138                 return -EFAULT;
 139         }
 140
 141         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 142         return 0;
 143 }
 144
 145 /*
 146  * This function forms an skb for management frame.
 147  */
 148 static int
 149 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 150 {
 151         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 152         u16 pkt_len;
 153         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 154         struct timeval tv;
 155
 156         pkt_len = len + ETH_ALEN;
 157
 158         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 159                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 160         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 161
 162         memcpy(skb_push(skb, sizeof(tx_control)),
 163                &tx_control, sizeof(tx_control));
 164
 165         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 166
 167         /* Add packet data and address4 */
 168         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 169                sizeof(struct ieee80211_hdr_3addr));
 170         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 171         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 172                buf + sizeof(struct ieee80211_hdr_3addr),
 173                len - sizeof(struct ieee80211_hdr_3addr));
 174
 175         skb->priority = LOW_PRIO_TID;
 176         do_gettimeofday(&tv);
 177         skb->tstamp = timeval_to_ktime(tv);
 178
 179         return 0;
 180 }
 181
 182 /*
 183  * CFG802.11 operation handler to transmit a management frame.
 184  */
 185 static int
 186 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 187                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 188 {
 189         const u8 *buf = params->buf;
 190         size_t len = params->len;
 191         struct sk_buff *skb;
 192         u16 pkt_len;
 193         const struct ieee80211_mgmt *mgmt;
 194         struct mwifiex_txinfo *tx_info;
 195         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 196
 197         if (!buf || !len) {
 198                 wiphy_err(wiphy, "invalid buffer and length\n");
 199                 return -EFAULT;
 200         }
 201
 202         mgmt = (const struct ieee80211_mgmt *)buf;
 203         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 204             ieee80211_is_probe_resp(mgmt->frame_control)) {
 205                 /* Since we support offload probe resp, we need to skip probe
 206                  * resp in AP or GO mode */
 207                 wiphy_dbg(wiphy,
 208                           "info: skip to send probe resp in AP or GO mode\n");
 209                 return 0;
 210         }
 211
 212         pkt_len = len + ETH_ALEN;
 213         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 214                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 215                             pkt_len + sizeof(pkt_len));
 216
 217         if (!skb) {
 218                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 219                 return -ENOMEM;
 220         }
 221
 222         tx_info = MWIFIEX_SKB_TXCB(skb);
 223         memset(tx_info, 0, sizeof(*tx_info));
 224         tx_info->bss_num = priv->bss_num;
 225         tx_info->bss_type = priv->bss_type;
 226         tx_info->pkt_len = pkt_len;
 227
 228         mwifiex_form_mgmt_frame(skb, buf, len);
 229         mwifiex_queue_tx_pkt(priv, skb);
 230
 231         *cookie = prandom_u32() | 1;
 232         cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
 233
 234         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 235         return 0;
 236 }
 237
 238 /*
 239  * CFG802.11 operation handler to register a mgmt frame.
 240  */
 241 static void
 242 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 243                                      struct wireless_dev *wdev,
 244                                      u16 frame_type, bool reg)
 245 {
 246         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 247         u32 mask;
 248
 249         if (reg)
 250                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 251         else
 252                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 253
 254         if (mask != priv->mgmt_frame_mask) {
 255                 priv->mgmt_frame_mask = mask;
 256                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 257                                  HostCmd_ACT_GEN_SET, 0,
 258                                  &priv->mgmt_frame_mask, false);
 259                 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 260         }
 261 }
 262
 263 /*
 264  * CFG802.11 operation handler to remain on channel.
 265  */
 266 static int
 267 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 268                                    struct wireless_dev *wdev,
 269                                    struct ieee80211_channel *chan,
 270                                    unsigned int duration, u64 *cookie)
 271 {
 272         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 273         int ret;
 274
 275         if (!chan || !cookie) {
 276                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 277                 return -EINVAL;
 278         }
 279
 280         if (priv->roc_cfg.cookie) {
 281                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
 282                           priv->roc_cfg.cookie);
 283                 return -EBUSY;
 284         }
 285
 286         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 287                                          duration);
 288
 289         if (!ret) {
 290                 *cookie = prandom_u32() | 1;
 291                 priv->roc_cfg.cookie = *cookie;
 292                 priv->roc_cfg.chan = *chan;
 293
 294                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 295                                           duration, GFP_ATOMIC);
 296
 297                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 298         }
 299
 300         return ret;
 301 }
 302
 303 /*
 304  * CFG802.11 operation handler to cancel remain on channel.
 305  */
 306 static int
 307 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 308                                           struct wireless_dev *wdev, u64 cookie)
 309 {
 310         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 311         int ret;
 312
 313         if (cookie != priv->roc_cfg.cookie)
 314                 return -ENOENT;
 315
 316         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 317                                          &priv->roc_cfg.chan, 0);
 318
 319         if (!ret) {
 320                 cfg80211_remain_on_channel_expired(wdev, cookie,
 321                                                    &priv->roc_cfg.chan,
 322                                                    GFP_ATOMIC);
 323
 324                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 325
 326                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 327         }
 328
 329         return ret;
 330 }
 331
 332 /*
 333  * CFG802.11 operation handler to set Tx power.
 334  */
 335 static int
 336 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 337                               struct wireless_dev *wdev,
 338                               enum nl80211_tx_power_setting type,
 339                               int mbm)
 340 {
 341         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 342         struct mwifiex_private *priv;
 343         struct mwifiex_power_cfg power_cfg;
 344         int dbm = MBM_TO_DBM(mbm);
 345
 346         if (type == NL80211_TX_POWER_FIXED) {
 347                 power_cfg.is_power_auto = 0;
 348                 power_cfg.power_level = dbm;
 349         } else {
 350                 power_cfg.is_power_auto = 1;
 351         }
 352
 353         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 354
 355         return mwifiex_set_tx_power(priv, &power_cfg);
 356 }
 357
 358 /*
 359  * CFG802.11 operation handler to set Power Save option.
 360  *
 361  * The timeout value, if provided, is currently ignored.
 362  */
 363 static int
 364 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 365                                 struct net_device *dev,
 366                                 bool enabled, int timeout)
 367 {
 368         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 369         u32 ps_mode;
 370
 371         if (timeout)
 372                 wiphy_dbg(wiphy,
 373                           "info: ignore timeout value for IEEE Power Save\n");
 374
 375         ps_mode = enabled;
 376
 377         return mwifiex_drv_set_power(priv, &ps_mode);
 378 }
 379
 380 /*
 381  * CFG802.11 operation handler to set the default network key.
 382  */
 383 static int
 384 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 385                                  u8 key_index, bool unicast,
 386                                  bool multicast)
 387 {
 388         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 389
 390         /* Return if WEP key not configured */
 391         if (!priv->sec_info.wep_enabled)
 392                 return 0;
 393
 394         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 395                 priv->wep_key_curr_index = key_index;
 396         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 397                                       NULL, 0)) {
 398                 wiphy_err(wiphy, "set default Tx key index\n");
 399                 return -EFAULT;
 400         }
 401
 402         return 0;
 403 }
 404
 405 /*
 406  * CFG802.11 operation handler to add a network key.
 407  */
 408 static int
 409 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 410                          u8 key_index, bool pairwise, const u8 *mac_addr,
 411                          struct key_params *params)
 412 {
 413         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 414         struct mwifiex_wep_key *wep_key;
 415         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 416         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 417
 418         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 419             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 420              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 421                 if (params->key && params->key_len) {
 422                         wep_key = &priv->wep_key[key_index];
 423                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 424                         memcpy(wep_key->key_material, params->key,
 425                                params->key_len);
 426                         wep_key->key_index = key_index;
 427                         wep_key->key_length = params->key_len;
 428                         priv->sec_info.wep_enabled = 1;
 429                 }
 430                 return 0;
 431         }
 432
 433         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 434                                key_index, peer_mac, 0)) {
 435                 wiphy_err(wiphy, "crypto keys added\n");
 436                 return -EFAULT;
 437         }
 438
 439         return 0;
 440 }
 441
 442 /*
 443  * This function sends domain information to the firmware.
 444  *
 445  * The following information are passed to the firmware -
 446  *      - Country codes
 447  *      - Sub bands (first channel, number of channels, maximum Tx power)
 448  */
 449 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 450 {
 451         u8 no_of_triplet = 0;
 452         struct ieee80211_country_ie_triplet *t;
 453         u8 no_of_parsed_chan = 0;
 454         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 455         u8 i, flag = 0;
 456         enum ieee80211_band band;
 457         struct ieee80211_supported_band *sband;
 458         struct ieee80211_channel *ch;
 459         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 460         struct mwifiex_private *priv;
 461         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 462
 463         /* Set country code */
 464         domain_info->country_code[0] = adapter->country_code[0];
 465         domain_info->country_code[1] = adapter->country_code[1];
 466         domain_info->country_code[2] = ' ';
 467
 468         band = mwifiex_band_to_radio_type(adapter->config_bands);
 469         if (!wiphy->bands[band]) {
 470                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 471                 return -1;
 472         }
 473
 474         sband = wiphy->bands[band];
 475
 476         for (i = 0; i < sband->n_channels ; i++) {
 477                 ch = &sband->channels[i];
 478                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 479                         continue;
 480
 481                 if (!flag) {
 482                         flag = 1;
 483                         first_chan = (u32) ch->hw_value;
 484                         next_chan = first_chan;
 485                         max_pwr = ch->max_power;
 486                         no_of_parsed_chan = 1;
 487                         continue;
 488                 }
 489
 490                 if (ch->hw_value == next_chan + 1 &&
 491                     ch->max_power == max_pwr) {
 492                         next_chan++;
 493                         no_of_parsed_chan++;
 494                 } else {
 495                         t = &domain_info->triplet[no_of_triplet];
 496                         t->chans.first_channel = first_chan;
 497                         t->chans.num_channels = no_of_parsed_chan;
 498                         t->chans.max_power = max_pwr;
 499                         no_of_triplet++;
 500                         first_chan = (u32) ch->hw_value;
 501                         next_chan = first_chan;
 502                         max_pwr = ch->max_power;
 503                         no_of_parsed_chan = 1;
 504                 }
 505         }
 506
 507         if (flag) {
 508                 t = &domain_info->triplet[no_of_triplet];
 509                 t->chans.first_channel = first_chan;
 510                 t->chans.num_channels = no_of_parsed_chan;
 511                 t->chans.max_power = max_pwr;
 512                 no_of_triplet++;
 513         }
 514
 515         domain_info->no_of_triplet = no_of_triplet;
 516
 517         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 518
 519         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 520                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 521                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 522                 return -1;
 523         }
 524
 525         return 0;
 526 }
 527
 528 /*
 529  * CFG802.11 regulatory domain callback function.
 530  *
 531  * This function is called when the regulatory domain is changed due to the
 532  * following reasons -
 533  *      - Set by driver
 534  *      - Set by system core
 535  *      - Set by user
 536  *      - Set bt Country IE
 537  */
 538 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 539                                  struct regulatory_request *request)
 540 {
 541         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 542         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 543                                                         MWIFIEX_BSS_ROLE_ANY);
 544
 545         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 546                   request->alpha2[0], request->alpha2[1]);
 547
 548         switch (request->initiator) {
 549         case NL80211_REGDOM_SET_BY_DRIVER:
 550         case NL80211_REGDOM_SET_BY_CORE:
 551         case NL80211_REGDOM_SET_BY_USER:
 552         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 553                 break;
 554         default:
 555                 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
 556                           request->initiator);
 557                 return;
 558         }
 559
 560         /* Don't send world or same regdom info to firmware */
 561         if (strncmp(request->alpha2, "00", 2) &&
 562             strncmp(request->alpha2, adapter->country_code,
 563                     sizeof(request->alpha2))) {
 564                 memcpy(adapter->country_code, request->alpha2,
 565                        sizeof(request->alpha2));
 566                 mwifiex_send_domain_info_cmd_fw(wiphy);
 567                 mwifiex_dnld_txpwr_table(priv);
 568         }
 569 }
 570
 571 /*
 572  * This function sets the fragmentation threshold.
 573  *
 574  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 575  * and MWIFIEX_FRAG_MAX_VALUE.
 576  */
 577 static int
 578 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 579 {
 580         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 581             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 582                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 583
 584         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 585                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 586                                 &frag_thr, true);
 587 }
 588
 589 /*
 590  * This function sets the RTS threshold.
 591
 592  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 593  * and MWIFIEX_RTS_MAX_VALUE.
 594  */
 595 static int
 596 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 597 {
 598         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 599                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 600
 601         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 602                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 603                                 &rts_thr, true);
 604 }
 605
 606 /*
 607  * CFG802.11 operation handler to set wiphy parameters.
 608  *
 609  * This function can be used to set the RTS threshold and the
 610  * Fragmentation threshold of the driver.
 611  */
 612 static int
 613 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 614 {
 615         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 616         struct mwifiex_private *priv;
 617         struct mwifiex_uap_bss_param *bss_cfg;
 618         int ret, bss_started, i;
 619
 620         for (i = 0; i < adapter->priv_num; i++) {
 621                 priv = adapter->priv[i];
 622
 623                 switch (priv->bss_role) {
 624                 case MWIFIEX_BSS_ROLE_UAP:
 625                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 626                                           GFP_KERNEL);
 627                         if (!bss_cfg)
 628                                 return -ENOMEM;
 629
 630                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 631
 632                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 633                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 634                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 635                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 636                         if (changed & WIPHY_PARAM_RETRY_LONG)
 637                                 bss_cfg->retry_limit = wiphy->retry_long;
 638
 639                         bss_started = priv->bss_started;
 640
 641                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
 642                                                HostCmd_ACT_GEN_SET, 0,
 643                                                NULL, true);
 644                         if (ret) {
 645                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 646                                 kfree(bss_cfg);
 647                                 return ret;
 648                         }
 649
 650                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 651                                                HostCmd_ACT_GEN_SET,
 652                                                UAP_BSS_PARAMS_I, bss_cfg,
 653                                                false);
 654
 655                         kfree(bss_cfg);
 656
 657                         if (ret) {
 658                                 wiphy_err(wiphy, "Failed to set bss config\n");
 659                                 return ret;
 660                         }
 661
 662                         if (!bss_started)
 663                                 break;
 664
 665                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
 666                                                HostCmd_ACT_GEN_SET, 0,
 667                                                NULL, false);
 668                         if (ret) {
 669                                 wiphy_err(wiphy, "Failed to start BSS\n");
 670                                 return ret;
 671                         }
 672
 673                         break;
 674                 case MWIFIEX_BSS_ROLE_STA:
 675                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 676                                 ret = mwifiex_set_rts(priv,
 677                                                       wiphy->rts_threshold);
 678                                 if (ret)
 679                                         return ret;
 680                         }
 681                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 682                                 ret = mwifiex_set_frag(priv,
 683                                                        wiphy->frag_threshold);
 684                                 if (ret)
 685                                         return ret;
 686                         }
 687                         break;
 688                 }
 689         }
 690
 691         return 0;
 692 }
 693
 694 static int
 695 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 696 {
 697         u16 mode = P2P_MODE_DISABLE;
 698
 699         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 700                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 701
 702         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 703                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 704                 return -1;
 705
 706         return 0;
 707 }
 708
 709 /*
 710  * This function initializes the functionalities for P2P client.
 711  * The P2P client initialization sequence is:
 712  * disable -> device -> client
 713  */
 714 static int
 715 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 716 {
 717         u16 mode;
 718
 719         if (mwifiex_cfg80211_deinit_p2p(priv))
 720                 return -1;
 721
 722         mode = P2P_MODE_DEVICE;
 723         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 724                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 725                 return -1;
 726
 727         mode = P2P_MODE_CLIENT;
 728         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 729                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 730                 return -1;
 731
 732         return 0;
 733 }
 734
 735 /*
 736  * This function initializes the functionalities for P2P GO.
 737  * The P2P GO initialization sequence is:
 738  * disable -> device -> GO
 739  */
 740 static int
 741 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 742 {
 743         u16 mode;
 744
 745         if (mwifiex_cfg80211_deinit_p2p(priv))
 746                 return -1;
 747
 748         mode = P2P_MODE_DEVICE;
 749         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 750                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 751                 return -1;
 752
 753         mode = P2P_MODE_GO;
 754         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 755                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 756                 return -1;
 757
 758         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 759                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 760
 761         return 0;
 762 }
 763
 764 /*
 765  * CFG802.11 operation handler to change interface type.
 766  */
 767 static int
 768 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 769                                      struct net_device *dev,
 770                                      enum nl80211_iftype type, u32 *flags,
 771                                      struct vif_params *params)
 772 {
 773         int ret;
 774         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 775
 776         switch (dev->ieee80211_ptr->iftype) {
 777         case NL80211_IFTYPE_ADHOC:
 778                 switch (type) {
 779                 case NL80211_IFTYPE_STATION:
 780                         break;
 781                 case NL80211_IFTYPE_UNSPECIFIED:
 782                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 783                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 784                         return 0;
 785                 case NL80211_IFTYPE_AP:
 786                 default:
 787                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 788                                   dev->name, type);
 789                         return -EOPNOTSUPP;
 790                 }
 791                 break;
 792         case NL80211_IFTYPE_STATION:
 793                 switch (type) {
 794                 case NL80211_IFTYPE_ADHOC:
 795                         break;
 796                 case NL80211_IFTYPE_P2P_CLIENT:
 797                         if (mwifiex_cfg80211_init_p2p_client(priv))
 798                                 return -EFAULT;
 799                         dev->ieee80211_ptr->iftype = type;
 800                         return 0;
 801                 case NL80211_IFTYPE_P2P_GO:
 802                         if (mwifiex_cfg80211_init_p2p_go(priv))
 803                                 return -EFAULT;
 804                         dev->ieee80211_ptr->iftype = type;
 805                         return 0;
 806                 case NL80211_IFTYPE_UNSPECIFIED:
 807                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 808                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 809                         return 0;
 810                 case NL80211_IFTYPE_AP:
 811                 default:
 812                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 813                                   dev->name, type);
 814                         return -EOPNOTSUPP;
 815                 }
 816                 break;
 817         case NL80211_IFTYPE_AP:
 818                 switch (type) {
 819                 case NL80211_IFTYPE_UNSPECIFIED:
 820                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 821                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 822                         return 0;
 823                 case NL80211_IFTYPE_ADHOC:
 824                 case NL80211_IFTYPE_STATION:
 825                 default:
 826                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 827                                   dev->name, type);
 828                         return -EOPNOTSUPP;
 829                 }
 830                 break;
 831         case NL80211_IFTYPE_P2P_CLIENT:
 832         case NL80211_IFTYPE_P2P_GO:
 833                 switch (type) {
 834                 case NL80211_IFTYPE_STATION:
 835                         if (mwifiex_cfg80211_deinit_p2p(priv))
 836                                 return -EFAULT;
 837                         dev->ieee80211_ptr->iftype = type;
 838                         return 0;
 839                 default:
 840                         return -EOPNOTSUPP;
 841                 }
 842                 break;
 843         default:
 844                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 845                           dev->name, dev->ieee80211_ptr->iftype);
 846                 return -EOPNOTSUPP;
 847         }
 848
 849         dev->ieee80211_ptr->iftype = type;
 850         priv->bss_mode = type;
 851         mwifiex_deauthenticate(priv, NULL);
 852
 853         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 854
 855         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 856                                HostCmd_ACT_GEN_SET, 0, NULL, true);
 857
 858         return ret;
 859 }
 860
 861 static void
 862 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 863                      struct rate_info *rate)
 864 {
 865         struct mwifiex_adapter *adapter = priv->adapter;
 866
 867         if (adapter->is_hw_11ac_capable) {
 868                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 869                 if (tx_htinfo & BIT(0)) {
 870                         /* HT */
 871                         rate->mcs = priv->tx_rate;
 872                         rate->flags |= RATE_INFO_FLAGS_MCS;
 873                 }
 874                 if (tx_htinfo & BIT(1)) {
 875                         /* VHT */
 876                         rate->mcs = priv->tx_rate & 0x0F;
 877                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 878                 }
 879
 880                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 881                         /* HT or VHT */
 882                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 883                         case 0:
 884                                 /* This will be 20MHz */
 885                                 break;
 886                         case (BIT(2)):
 887                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 888                                 break;
 889                         case (BIT(3)):
 890                                 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 891                                 break;
 892                         case (BIT(3) | BIT(2)):
 893                                 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 894                                 break;
 895                         }
 896
 897                         if (tx_htinfo & BIT(4))
 898                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 899
 900                         if ((priv->tx_rate >> 4) == 1)
 901                                 rate->nss = 2;
 902                         else
 903                                 rate->nss = 1;
 904                 }
 905         } else {
 906                 /*
 907                  * Bit 0 in tx_htinfo indicates that current Tx rate
 908                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 909                  */
 910                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 911                         rate->mcs = priv->tx_rate;
 912                         rate->flags |= RATE_INFO_FLAGS_MCS;
 913                         if (tx_htinfo & BIT(1))
 914                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 915                         if (tx_htinfo & BIT(2))
 916                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 917                 }
 918         }
 919 }
 920
 921 /*
 922  * This function dumps the station information on a buffer.
 923  *
 924  * The following information are shown -
 925  *      - Total bytes transmitted
 926  *      - Total bytes received
 927  *      - Total packets transmitted
 928  *      - Total packets received
 929  *      - Signal quality level
 930  *      - Transmission rate
 931  */
 932 static int
 933 mwifiex_dump_station_info(struct mwifiex_private *priv,
 934                           struct station_info *sinfo)
 935 {
 936         u32 rate;
 937
 938         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 939                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 940                         STATION_INFO_TX_BITRATE |
 941                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 942
 943         /* Get signal information from the firmware */
 944         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
 945                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
 946                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 947                 return -EFAULT;
 948         }
 949
 950         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 951                 dev_err(priv->adapter->dev, "getting data rate\n");
 952                 return -EFAULT;
 953         }
 954
 955         /* Get DTIM period information from firmware */
 956         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 957                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 958                          &priv->dtim_period, true);
 959
 960         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 961
 962         sinfo->signal_avg = priv->bcn_rssi_avg;
 963         sinfo->rx_bytes = priv->stats.rx_bytes;
 964         sinfo->tx_bytes = priv->stats.tx_bytes;
 965         sinfo->rx_packets = priv->stats.rx_packets;
 966         sinfo->tx_packets = priv->stats.tx_packets;
 967         sinfo->signal = priv->bcn_rssi_avg;
 968         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 969         sinfo->txrate.legacy = rate * 5;
 970
 971         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 972                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 973                 sinfo->bss_param.flags = 0;
 974                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 975                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 976                         sinfo->bss_param.flags |=
 977                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 978                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 979                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 980                         sinfo->bss_param.flags |=
 981                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 982                 sinfo->bss_param.dtim_period = priv->dtim_period;
 983                 sinfo->bss_param.beacon_interval =
 984                         priv->curr_bss_params.bss_descriptor.beacon_period;
 985         }
 986
 987         return 0;
 988 }
 989
 990 /*
 991  * CFG802.11 operation handler to get station information.
 992  *
 993  * This function only works in connected mode, and dumps the
 994  * requested station information, if available.
 995  */
 996 static int
 997 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 998                              const u8 *mac, struct station_info *sinfo)
 999 {
1000         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1001
1002         if (!priv->media_connected)
1003                 return -ENOENT;
1004         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1005                 return -ENOENT;
1006
1007         return mwifiex_dump_station_info(priv, sinfo);
1008 }
1009
1010 /*
1011  * CFG802.11 operation handler to dump station information.
1012  */
1013 static int
1014 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1015                               int idx, u8 *mac, struct station_info *sinfo)
1016 {
1017         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1018
1019         if (!priv->media_connected || idx)
1020                 return -ENOENT;
1021
1022         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1023
1024         return mwifiex_dump_station_info(priv, sinfo);
1025 }
1026
1027 /* Supported rates to be advertised to the cfg80211 */
1028 static struct ieee80211_rate mwifiex_rates[] = {
1029         {.bitrate = 10, .hw_value = 2, },
1030         {.bitrate = 20, .hw_value = 4, },
1031         {.bitrate = 55, .hw_value = 11, },
1032         {.bitrate = 110, .hw_value = 22, },
1033         {.bitrate = 60, .hw_value = 12, },
1034         {.bitrate = 90, .hw_value = 18, },
1035         {.bitrate = 120, .hw_value = 24, },
1036         {.bitrate = 180, .hw_value = 36, },
1037         {.bitrate = 240, .hw_value = 48, },
1038         {.bitrate = 360, .hw_value = 72, },
1039         {.bitrate = 480, .hw_value = 96, },
1040         {.bitrate = 540, .hw_value = 108, },
1041 };
1042
1043 /* Channel definitions to be advertised to cfg80211 */
1044 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1045         {.center_freq = 2412, .hw_value = 1, },
1046         {.center_freq = 2417, .hw_value = 2, },
1047         {.center_freq = 2422, .hw_value = 3, },
1048         {.center_freq = 2427, .hw_value = 4, },
1049         {.center_freq = 2432, .hw_value = 5, },
1050         {.center_freq = 2437, .hw_value = 6, },
1051         {.center_freq = 2442, .hw_value = 7, },
1052         {.center_freq = 2447, .hw_value = 8, },
1053         {.center_freq = 2452, .hw_value = 9, },
1054         {.center_freq = 2457, .hw_value = 10, },
1055         {.center_freq = 2462, .hw_value = 11, },
1056         {.center_freq = 2467, .hw_value = 12, },
1057         {.center_freq = 2472, .hw_value = 13, },
1058         {.center_freq = 2484, .hw_value = 14, },
1059 };
1060
1061 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1062         .channels = mwifiex_channels_2ghz,
1063         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1064         .bitrates = mwifiex_rates,
1065         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1066 };
1067
1068 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1069         {.center_freq = 5040, .hw_value = 8, },
1070         {.center_freq = 5060, .hw_value = 12, },
1071         {.center_freq = 5080, .hw_value = 16, },
1072         {.center_freq = 5170, .hw_value = 34, },
1073         {.center_freq = 5190, .hw_value = 38, },
1074         {.center_freq = 5210, .hw_value = 42, },
1075         {.center_freq = 5230, .hw_value = 46, },
1076         {.center_freq = 5180, .hw_value = 36, },
1077         {.center_freq = 5200, .hw_value = 40, },
1078         {.center_freq = 5220, .hw_value = 44, },
1079         {.center_freq = 5240, .hw_value = 48, },
1080         {.center_freq = 5260, .hw_value = 52, },
1081         {.center_freq = 5280, .hw_value = 56, },
1082         {.center_freq = 5300, .hw_value = 60, },
1083         {.center_freq = 5320, .hw_value = 64, },
1084         {.center_freq = 5500, .hw_value = 100, },
1085         {.center_freq = 5520, .hw_value = 104, },
1086         {.center_freq = 5540, .hw_value = 108, },
1087         {.center_freq = 5560, .hw_value = 112, },
1088         {.center_freq = 5580, .hw_value = 116, },
1089         {.center_freq = 5600, .hw_value = 120, },
1090         {.center_freq = 5620, .hw_value = 124, },
1091         {.center_freq = 5640, .hw_value = 128, },
1092         {.center_freq = 5660, .hw_value = 132, },
1093         {.center_freq = 5680, .hw_value = 136, },
1094         {.center_freq = 5700, .hw_value = 140, },
1095         {.center_freq = 5745, .hw_value = 149, },
1096         {.center_freq = 5765, .hw_value = 153, },
1097         {.center_freq = 5785, .hw_value = 157, },
1098         {.center_freq = 5805, .hw_value = 161, },
1099         {.center_freq = 5825, .hw_value = 165, },
1100 };
1101
1102 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1103         .channels = mwifiex_channels_5ghz,
1104         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1105         .bitrates = mwifiex_rates + 4,
1106         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1107 };
1108
1109
1110 /* Supported crypto cipher suits to be advertised to cfg80211 */
1111 static const u32 mwifiex_cipher_suites[] = {
1112         WLAN_CIPHER_SUITE_WEP40,
1113         WLAN_CIPHER_SUITE_WEP104,
1114         WLAN_CIPHER_SUITE_TKIP,
1115         WLAN_CIPHER_SUITE_CCMP,
1116         WLAN_CIPHER_SUITE_AES_CMAC,
1117 };
1118
1119 /* Supported mgmt frame types to be advertised to cfg80211 */
1120 static const struct ieee80211_txrx_stypes
1121 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1122         [NL80211_IFTYPE_STATION] = {
1123                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1124                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1125                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1126                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1127         },
1128         [NL80211_IFTYPE_AP] = {
1129                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1130                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1131                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1132                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1133         },
1134         [NL80211_IFTYPE_P2P_CLIENT] = {
1135                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1136                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1137                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1138                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1139         },
1140         [NL80211_IFTYPE_P2P_GO] = {
1141                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1142                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1143                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1144                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1145         },
1146 };
1147
1148 /*
1149  * CFG802.11 operation handler for setting bit rates.
1150  *
1151  * Function configures data rates to firmware using bitrate mask
1152  * provided by cfg80211.
1153  */
1154 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1155                                 struct net_device *dev,
1156                                 const u8 *peer,
1157                                 const struct cfg80211_bitrate_mask *mask)
1158 {
1159         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1160         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1161         enum ieee80211_band band;
1162         struct mwifiex_adapter *adapter = priv->adapter;
1163
1164         if (!priv->media_connected) {
1165                 dev_err(adapter->dev,
1166                         "Can not set Tx data rate in disconnected state\n");
1167                 return -EINVAL;
1168         }
1169
1170         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1171
1172         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1173
1174         /* Fill HR/DSSS rates. */
1175         if (band == IEEE80211_BAND_2GHZ)
1176                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1177
1178         /* Fill OFDM rates */
1179         if (band == IEEE80211_BAND_2GHZ)
1180                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1181         else
1182                 bitmap_rates[1] = mask->control[band].legacy;
1183
1184         /* Fill HT MCS rates */
1185         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1186         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1187                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1188
1189        /* Fill VHT MCS rates */
1190         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1191                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1192                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1193                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1194         }
1195
1196         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1197                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1198 }
1199
1200 /*
1201  * CFG802.11 operation handler for connection quality monitoring.
1202  *
1203  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1204  * events to FW.
1205  */
1206 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1207                                                 struct net_device *dev,
1208                                                 s32 rssi_thold, u32 rssi_hyst)
1209 {
1210         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1211         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1212
1213         priv->cqm_rssi_thold = rssi_thold;
1214         priv->cqm_rssi_hyst = rssi_hyst;
1215
1216         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1217         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1218
1219         /* Subscribe/unsubscribe low and high rssi events */
1220         if (rssi_thold && rssi_hyst) {
1221                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1222                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1223                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1224                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1225                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1226                 return mwifiex_send_cmd(priv,
1227                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1228                                         0, 0, &subsc_evt, true);
1229         } else {
1230                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1231                 return mwifiex_send_cmd(priv,
1232                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1233                                         0, 0, &subsc_evt, true);
1234         }
1235
1236         return 0;
1237 }
1238
1239 /* cfg80211 operation handler for change_beacon.
1240  * Function retrieves and sets modified management IEs to FW.
1241  */
1242 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1243                                           struct net_device *dev,
1244                                           struct cfg80211_beacon_data *data)
1245 {
1246         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1247
1248         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1249                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1250                 return -EINVAL;
1251         }
1252
1253         if (!priv->bss_started) {
1254                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1255                 return -EINVAL;
1256         }
1257
1258         if (mwifiex_set_mgmt_ies(priv, data)) {
1259                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1260                 return -EFAULT;
1261         }
1262
1263         return 0;
1264 }
1265
1266 /* cfg80211 operation handler for del_station.
1267  * Function deauthenticates station which value is provided in mac parameter.
1268  * If mac is NULL/broadcast, all stations in associated station list are
1269  * deauthenticated. If bss is not started or there are no stations in
1270  * associated stations list, no action is taken.
1271  */
1272 static int
1273 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1274                              const u8 *mac)
1275 {
1276         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1277         struct mwifiex_sta_node *sta_node;
1278         unsigned long flags;
1279
1280         if (list_empty(&priv->sta_list) || !priv->bss_started)
1281                 return 0;
1282
1283         if (!mac || is_broadcast_ether_addr(mac)) {
1284                 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1285                 list_for_each_entry(sta_node, &priv->sta_list, list) {
1286                         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1287                                              HostCmd_ACT_GEN_SET, 0,
1288                                              sta_node->mac_addr, true))
1289                                 return -1;
1290                         mwifiex_uap_del_sta_data(priv, sta_node);
1291                 }
1292         } else {
1293                 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
1294                 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1295                 sta_node = mwifiex_get_sta_entry(priv, mac);
1296                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1297                 if (sta_node) {
1298                         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1299                                              HostCmd_ACT_GEN_SET, 0,
1300                                              sta_node->mac_addr, true))
1301                                 return -1;
1302                         mwifiex_uap_del_sta_data(priv, sta_node);
1303                 }
1304         }
1305
1306         return 0;
1307 }
1308
1309 static int
1310 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1311 {
1312         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1313         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1314                                                         MWIFIEX_BSS_ROLE_ANY);
1315         struct mwifiex_ds_ant_cfg ant_cfg;
1316
1317         if (!tx_ant || !rx_ant)
1318                 return -EOPNOTSUPP;
1319
1320         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1321                 /* Not a MIMO chip. User should provide specific antenna number
1322                  * for Tx/Rx path or enable all antennas for diversity
1323                  */
1324                 if (tx_ant != rx_ant)
1325                         return -EOPNOTSUPP;
1326
1327                 if ((tx_ant & (tx_ant - 1)) &&
1328                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1329                         return -EOPNOTSUPP;
1330
1331                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1332                     (priv->adapter->number_of_antenna > 1)) {
1333                         tx_ant = RF_ANTENNA_AUTO;
1334                         rx_ant = RF_ANTENNA_AUTO;
1335                 }
1336         } else {
1337                 struct ieee80211_sta_ht_cap *ht_info;
1338                 int rx_mcs_supp;
1339                 enum ieee80211_band band;
1340
1341                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1342                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1343                         if (adapter->is_hw_11ac_capable)
1344                                 adapter->usr_dot_11ac_mcs_support =
1345                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1346                 } else {
1347                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1348                         if (adapter->is_hw_11ac_capable)
1349                                 adapter->usr_dot_11ac_mcs_support =
1350                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1351                 }
1352
1353                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1354                         if (!adapter->wiphy->bands[band])
1355                                 continue;
1356
1357                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1358                         rx_mcs_supp =
1359                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1360                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1361                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1362                 }
1363         }
1364
1365         ant_cfg.tx_ant = tx_ant;
1366         ant_cfg.rx_ant = rx_ant;
1367
1368         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1369                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1370 }
1371
1372 /* cfg80211 operation handler for stop ap.
1373  * Function stops BSS running at uAP interface.
1374  */
1375 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1376 {
1377         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1378
1379         if (mwifiex_del_mgmt_ies(priv))
1380                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1381
1382         priv->ap_11n_enabled = 0;
1383
1384         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1385                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1386                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1387                 return -1;
1388         }
1389
1390         return 0;
1391 }
1392
1393 /* cfg80211 operation handler for start_ap.
1394  * Function sets beacon period, DTIM period, SSID and security into
1395  * AP config structure.
1396  * AP is configured with these settings and BSS is started.
1397  */
1398 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1399                                      struct net_device *dev,
1400                                      struct cfg80211_ap_settings *params)
1401 {
1402         struct mwifiex_uap_bss_param *bss_cfg;
1403         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1404         u8 config_bands = 0;
1405
1406         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1407                 return -1;
1408         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1409                 return -1;
1410
1411         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1412         if (!bss_cfg)
1413                 return -ENOMEM;
1414
1415         mwifiex_set_sys_config_invalid_data(bss_cfg);
1416
1417         if (params->beacon_interval)
1418                 bss_cfg->beacon_period = params->beacon_interval;
1419         if (params->dtim_period)
1420                 bss_cfg->dtim_period = params->dtim_period;
1421
1422         if (params->ssid && params->ssid_len) {
1423                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1424                 bss_cfg->ssid.ssid_len = params->ssid_len;
1425         }
1426
1427         switch (params->hidden_ssid) {
1428         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1429                 bss_cfg->bcast_ssid_ctl = 1;
1430                 break;
1431         case NL80211_HIDDEN_SSID_ZERO_LEN:
1432                 bss_cfg->bcast_ssid_ctl = 0;
1433                 break;
1434         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1435                 /* firmware doesn't support this type of hidden SSID */
1436         default:
1437                 kfree(bss_cfg);
1438                 return -EINVAL;
1439         }
1440
1441         bss_cfg->channel = ieee80211_frequency_to_channel(
1442                                 params->chandef.chan->center_freq);
1443
1444         /* Set appropriate bands */
1445         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1446                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1447                 config_bands = BAND_B | BAND_G;
1448
1449                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1450                         config_bands |= BAND_GN;
1451         } else {
1452                 bss_cfg->band_cfg = BAND_CONFIG_A;
1453                 config_bands = BAND_A;
1454
1455                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1456                         config_bands |= BAND_AN;
1457
1458                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1459                         config_bands |= BAND_AAC;
1460         }
1461
1462         if (!((config_bands | priv->adapter->fw_bands) &
1463               ~priv->adapter->fw_bands))
1464                 priv->adapter->config_bands = config_bands;
1465
1466         mwifiex_set_uap_rates(bss_cfg, params);
1467         mwifiex_send_domain_info_cmd_fw(wiphy);
1468
1469         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1470                 kfree(bss_cfg);
1471                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1472                 return -1;
1473         }
1474
1475         mwifiex_set_ht_params(priv, bss_cfg, params);
1476
1477         if (priv->adapter->is_hw_11ac_capable) {
1478                 mwifiex_set_vht_params(priv, bss_cfg, params);
1479                 mwifiex_set_vht_width(priv, params->chandef.width,
1480                                       priv->ap_11ac_enabled);
1481         }
1482
1483         if (priv->ap_11ac_enabled)
1484                 mwifiex_set_11ac_ba_params(priv);
1485         else
1486                 mwifiex_set_ba_params(priv);
1487
1488         mwifiex_set_wmm_params(priv, bss_cfg, params);
1489
1490         if (params->inactivity_timeout > 0) {
1491                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1492                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1493                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1494         }
1495
1496         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1497                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1498                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1499                 kfree(bss_cfg);
1500                 return -1;
1501         }
1502
1503         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1504                              HostCmd_ACT_GEN_SET,
1505                              UAP_BSS_PARAMS_I, bss_cfg, false)) {
1506                 wiphy_err(wiphy, "Failed to set the SSID\n");
1507                 kfree(bss_cfg);
1508                 return -1;
1509         }
1510
1511         kfree(bss_cfg);
1512
1513         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1514                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1515                 wiphy_err(wiphy, "Failed to start the BSS\n");
1516                 return -1;
1517         }
1518
1519         if (priv->sec_info.wep_enabled)
1520                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1521         else
1522                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1523
1524         if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1525                              HostCmd_ACT_GEN_SET, 0,
1526                              &priv->curr_pkt_filter, true))
1527                 return -1;
1528
1529         return 0;
1530 }
1531
1532 /*
1533  * CFG802.11 operation handler for disconnection request.
1534  *
1535  * This function does not work when there is already a disconnection
1536  * procedure going on.
1537  */
1538 static int
1539 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1540                             u16 reason_code)
1541 {
1542         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1543
1544         if (mwifiex_deauthenticate(priv, NULL))
1545                 return -EFAULT;
1546
1547         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1548                 " reason code %d\n", priv->cfg_bssid, reason_code);
1549
1550         memset(priv->cfg_bssid, 0, ETH_ALEN);
1551         priv->hs2_enabled = false;
1552
1553         return 0;
1554 }
1555
1556 /*
1557  * This function informs the CFG802.11 subsystem of a new IBSS.
1558  *
1559  * The following information are sent to the CFG802.11 subsystem
1560  * to register the new IBSS. If we do not register the new IBSS,
1561  * a kernel panic will result.
1562  *      - SSID
1563  *      - SSID length
1564  *      - BSSID
1565  *      - Channel
1566  */
1567 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1568 {
1569         struct ieee80211_channel *chan;
1570         struct mwifiex_bss_info bss_info;
1571         struct cfg80211_bss *bss;
1572         int ie_len;
1573         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1574         enum ieee80211_band band;
1575
1576         if (mwifiex_get_bss_info(priv, &bss_info))
1577                 return -1;
1578
1579         ie_buf[0] = WLAN_EID_SSID;
1580         ie_buf[1] = bss_info.ssid.ssid_len;
1581
1582         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1583                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1584         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1585
1586         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1587         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1588                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1589                                                        band));
1590
1591         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1592                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1593                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1594         cfg80211_put_bss(priv->wdev->wiphy, bss);
1595         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1596
1597         return 0;
1598 }
1599
1600 /*
1601  * This function connects with a BSS.
1602  *
1603  * This function handles both Infra and Ad-Hoc modes. It also performs
1604  * validity checking on the provided parameters, disconnects from the
1605  * current BSS (if any), sets up the association/scan parameters,
1606  * including security settings, and performs specific SSID scan before
1607  * trying to connect.
1608  *
1609  * For Infra mode, the function returns failure if the specified SSID
1610  * is not found in scan table. However, for Ad-Hoc mode, it can create
1611  * the IBSS if it does not exist. On successful completion in either case,
1612  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1613  */
1614 static int
1615 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1616                        const u8 *ssid, const u8 *bssid, int mode,
1617                        struct ieee80211_channel *channel,
1618                        struct cfg80211_connect_params *sme, bool privacy)
1619 {
1620         struct cfg80211_ssid req_ssid;
1621         int ret, auth_type = 0;
1622         struct cfg80211_bss *bss = NULL;
1623         u8 is_scanning_required = 0;
1624
1625         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1626
1627         req_ssid.ssid_len = ssid_len;
1628         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1629                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1630                 return -EINVAL;
1631         }
1632
1633         memcpy(req_ssid.ssid, ssid, ssid_len);
1634         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1635                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1636                 return -EINVAL;
1637         }
1638
1639         /* disconnect before try to associate */
1640         mwifiex_deauthenticate(priv, NULL);
1641
1642         /* As this is new association, clear locally stored
1643          * keys and security related flags */
1644         priv->sec_info.wpa_enabled = false;
1645         priv->sec_info.wpa2_enabled = false;
1646         priv->wep_key_curr_index = 0;
1647         priv->sec_info.encryption_mode = 0;
1648         priv->sec_info.is_authtype_auto = 0;
1649         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1650
1651         if (mode == NL80211_IFTYPE_ADHOC) {
1652                 /* "privacy" is set only for ad-hoc mode */
1653                 if (privacy) {
1654                         /*
1655                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1656                          * the firmware can find a matching network from the
1657                          * scan. The cfg80211 does not give us the encryption
1658                          * mode at this stage so just setting it to WEP here.
1659                          */
1660                         priv->sec_info.encryption_mode =
1661                                         WLAN_CIPHER_SUITE_WEP104;
1662                         priv->sec_info.authentication_mode =
1663                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1664                 }
1665
1666                 goto done;
1667         }
1668
1669         /* Now handle infra mode. "sme" is valid for infra mode only */
1670         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1671                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1672                 priv->sec_info.is_authtype_auto = 1;
1673         } else {
1674                 auth_type = sme->auth_type;
1675         }
1676
1677         if (sme->crypto.n_ciphers_pairwise) {
1678                 priv->sec_info.encryption_mode =
1679                                                 sme->crypto.ciphers_pairwise[0];
1680                 priv->sec_info.authentication_mode = auth_type;
1681         }
1682
1683         if (sme->crypto.cipher_group) {
1684                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1685                 priv->sec_info.authentication_mode = auth_type;
1686         }
1687         if (sme->ie)
1688                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1689
1690         if (sme->key) {
1691                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1692                         dev_dbg(priv->adapter->dev,
1693                                 "info: setting wep encryption"
1694                                 " with key len %d\n", sme->key_len);
1695                         priv->wep_key_curr_index = sme->key_idx;
1696                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1697                                                  sme->key_len, sme->key_idx,
1698                                                  NULL, 0);
1699                 }
1700         }
1701 done:
1702         /*
1703          * Scan entries are valid for some time (15 sec). So we can save one
1704          * active scan time if we just try cfg80211_get_bss first. If it fails
1705          * then request scan and cfg80211_get_bss() again for final output.
1706          */
1707         while (1) {
1708                 if (is_scanning_required) {
1709                         /* Do specific SSID scanning */
1710                         if (mwifiex_request_scan(priv, &req_ssid)) {
1711                                 dev_err(priv->adapter->dev, "scan error\n");
1712                                 return -EFAULT;
1713                         }
1714                 }
1715
1716                 /* Find the BSS we want using available scan results */
1717                 if (mode == NL80211_IFTYPE_ADHOC)
1718                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1719                                                bssid, ssid, ssid_len,
1720                                                WLAN_CAPABILITY_IBSS,
1721                                                WLAN_CAPABILITY_IBSS);
1722                 else
1723                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1724                                                bssid, ssid, ssid_len,
1725                                                WLAN_CAPABILITY_ESS,
1726                                                WLAN_CAPABILITY_ESS);
1727
1728                 if (!bss) {
1729                         if (is_scanning_required) {
1730                                 dev_warn(priv->adapter->dev,
1731                                          "assoc: requested bss not found in scan results\n");
1732                                 break;
1733                         }
1734                         is_scanning_required = 1;
1735                 } else {
1736                         dev_dbg(priv->adapter->dev,
1737                                 "info: trying to associate to '%s' bssid %pM\n",
1738                                 (char *) req_ssid.ssid, bss->bssid);
1739                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1740                         break;
1741                 }
1742         }
1743
1744         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1745         if (ret)
1746                 return ret;
1747
1748         if (mode == NL80211_IFTYPE_ADHOC) {
1749                 /* Inform the BSS information to kernel, otherwise
1750                  * kernel will give a panic after successful assoc */
1751                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1752                         return -EFAULT;
1753         }
1754
1755         return ret;
1756 }
1757
1758 /*
1759  * CFG802.11 operation handler for association request.
1760  *
1761  * This function does not work when the current mode is set to Ad-Hoc, or
1762  * when there is already an association procedure going on. The given BSS
1763  * information is used to associate.
1764  */
1765 static int
1766 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1767                          struct cfg80211_connect_params *sme)
1768 {
1769         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1770         int ret;
1771
1772         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1773                 wiphy_err(wiphy,
1774                           "%s: reject infra assoc request in non-STA role\n",
1775                           dev->name);
1776                 return -EINVAL;
1777         }
1778
1779         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1780                   (char *) sme->ssid, sme->bssid);
1781
1782         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1783                                      priv->bss_mode, sme->channel, sme, 0);
1784         if (!ret) {
1785                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1786                                         NULL, 0, WLAN_STATUS_SUCCESS,
1787                                         GFP_KERNEL);
1788                 dev_dbg(priv->adapter->dev,
1789                         "info: associated to bssid %pM successfully\n",
1790                         priv->cfg_bssid);
1791         } else {
1792                 dev_dbg(priv->adapter->dev,
1793                         "info: association to bssid %pM failed\n",
1794                         priv->cfg_bssid);
1795                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1796
1797                 if (ret > 0)
1798                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1799                                                 NULL, 0, NULL, 0, ret,
1800                                                 GFP_KERNEL);
1801                 else
1802                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1803                                                 NULL, 0, NULL, 0,
1804                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1805                                                 GFP_KERNEL);
1806         }
1807
1808         return 0;
1809 }
1810
1811 /*
1812  * This function sets following parameters for ibss network.
1813  *  -  channel
1814  *  -  start band
1815  *  -  11n flag
1816  *  -  secondary channel offset
1817  */
1818 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1819                                    struct cfg80211_ibss_params *params)
1820 {
1821         struct wiphy *wiphy = priv->wdev->wiphy;
1822         struct mwifiex_adapter *adapter = priv->adapter;
1823         int index = 0, i;
1824         u8 config_bands = 0;
1825
1826         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1827                 if (!params->basic_rates) {
1828                         config_bands = BAND_B | BAND_G;
1829                 } else {
1830                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1831                                 /*
1832                                  * Rates below 6 Mbps in the table are CCK
1833                                  * rates; 802.11b and from 6 they are OFDM;
1834                                  * 802.11G
1835                                  */
1836                                 if (mwifiex_rates[i].bitrate == 60) {
1837                                         index = 1 << i;
1838                                         break;
1839                                 }
1840                         }
1841
1842                         if (params->basic_rates < index) {
1843                                 config_bands = BAND_B;
1844                         } else {
1845                                 config_bands = BAND_G;
1846                                 if (params->basic_rates % index)
1847                                         config_bands |= BAND_B;
1848                         }
1849                 }
1850
1851                 if (cfg80211_get_chandef_type(&params->chandef) !=
1852                                                 NL80211_CHAN_NO_HT)
1853                         config_bands |= BAND_G | BAND_GN;
1854         } else {
1855                 if (cfg80211_get_chandef_type(&params->chandef) ==
1856                                                 NL80211_CHAN_NO_HT)
1857                         config_bands = BAND_A;
1858                 else
1859                         config_bands = BAND_AN | BAND_A;
1860         }
1861
1862         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1863                 adapter->config_bands = config_bands;
1864                 adapter->adhoc_start_band = config_bands;
1865
1866                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1867                         adapter->adhoc_11n_enabled = true;
1868                 else
1869                         adapter->adhoc_11n_enabled = false;
1870         }
1871
1872         adapter->sec_chan_offset =
1873                 mwifiex_chan_type_to_sec_chan_offset(
1874                         cfg80211_get_chandef_type(&params->chandef));
1875         priv->adhoc_channel = ieee80211_frequency_to_channel(
1876                                 params->chandef.chan->center_freq);
1877
1878         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1879                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1880
1881         return 0;
1882 }
1883
1884 /*
1885  * CFG802.11 operation handler to join an IBSS.
1886  *
1887  * This function does not work in any mode other than Ad-Hoc, or if
1888  * a join operation is already in progress.
1889  */
1890 static int
1891 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1892                            struct cfg80211_ibss_params *params)
1893 {
1894         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1895         int ret = 0;
1896
1897         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1898                 wiphy_err(wiphy, "request to join ibss received "
1899                                 "when station is not in ibss mode\n");
1900                 goto done;
1901         }
1902
1903         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1904                   (char *) params->ssid, params->bssid);
1905
1906         mwifiex_set_ibss_params(priv, params);
1907
1908         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1909                                      params->bssid, priv->bss_mode,
1910                                      params->chandef.chan, NULL,
1911                                      params->privacy);
1912 done:
1913         if (!ret) {
1914                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1915                                      params->chandef.chan, GFP_KERNEL);
1916                 dev_dbg(priv->adapter->dev,
1917                         "info: joined/created adhoc network with bssid"
1918                         " %pM successfully\n", priv->cfg_bssid);
1919         } else {
1920                 dev_dbg(priv->adapter->dev,
1921                         "info: failed creating/joining adhoc network\n");
1922         }
1923
1924         return ret;
1925 }
1926
1927 /*
1928  * CFG802.11 operation handler to leave an IBSS.
1929  *
1930  * This function does not work if a leave operation is
1931  * already in progress.
1932  */
1933 static int
1934 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1935 {
1936         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1937
1938         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1939                   priv->cfg_bssid);
1940         if (mwifiex_deauthenticate(priv, NULL))
1941                 return -EFAULT;
1942
1943         memset(priv->cfg_bssid, 0, ETH_ALEN);
1944
1945         return 0;
1946 }
1947
1948 /*
1949  * CFG802.11 operation handler for scan request.
1950  *
1951  * This function issues a scan request to the firmware based upon
1952  * the user specified scan configuration. On successfull completion,
1953  * it also informs the results.
1954  */
1955 static int
1956 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1957                       struct cfg80211_scan_request *request)
1958 {
1959         struct net_device *dev = request->wdev->netdev;
1960         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1961         int i, offset, ret;
1962         struct ieee80211_channel *chan;
1963         struct ieee_types_header *ie;
1964         struct mwifiex_user_scan_cfg *user_scan_cfg;
1965
1966         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1967
1968         if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1969             atomic_read(&priv->wmm.tx_pkts_queued) >=
1970             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1971                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1972                 return -EBUSY;
1973         }
1974
1975         /* Block scan request if scan operation or scan cleanup when interface
1976          * is disabled is in process
1977          */
1978         if (priv->scan_request || priv->scan_aborting) {
1979                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1980                 return -EBUSY;
1981         }
1982
1983         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1984         if (!user_scan_cfg)
1985                 return -ENOMEM;
1986
1987         priv->scan_request = request;
1988
1989         user_scan_cfg->num_ssids = request->n_ssids;
1990         user_scan_cfg->ssid_list = request->ssids;
1991
1992         if (request->ie && request->ie_len) {
1993                 offset = 0;
1994                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1995                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1996                                 continue;
1997                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1998                         ie = (struct ieee_types_header *)(request->ie + offset);
1999                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2000                         offset += sizeof(*ie) + ie->len;
2001
2002                         if (offset >= request->ie_len)
2003                                 break;
2004                 }
2005         }
2006
2007         for (i = 0; i < min_t(u32, request->n_channels,
2008                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2009                 chan = request->channels[i];
2010                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2011                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2012
2013                 if (chan->flags & IEEE80211_CHAN_NO_IR)
2014                         user_scan_cfg->chan_list[i].scan_type =
2015                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2016                 else
2017                         user_scan_cfg->chan_list[i].scan_type =
2018                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2019
2020                 user_scan_cfg->chan_list[i].scan_time = 0;
2021         }
2022
2023         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2024         kfree(user_scan_cfg);
2025         if (ret) {
2026                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2027                 priv->scan_aborting = false;
2028                 priv->scan_request = NULL;
2029                 return ret;
2030         }
2031
2032         if (request->ie && request->ie_len) {
2033                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2034                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2035                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2036                                 memset(&priv->vs_ie[i].ie, 0,
2037                                        MWIFIEX_MAX_VSIE_LEN);
2038                         }
2039                 }
2040         }
2041         return 0;
2042 }
2043
2044 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2045                                    struct mwifiex_private *priv)
2046 {
2047         struct mwifiex_adapter *adapter = priv->adapter;
2048
2049         vht_info->vht_supported = true;
2050
2051         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2052         /* Update MCS support for VHT */
2053         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2054                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2055         vht_info->vht_mcs.rx_highest = 0;
2056         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2057                                 adapter->hw_dot_11ac_mcs_support >> 16);
2058         vht_info->vht_mcs.tx_highest = 0;
2059 }
2060
2061 /*
2062  * This function sets up the CFG802.11 specific HT capability fields
2063  * with default values.
2064  *
2065  * The following default values are set -
2066  *      - HT Supported = True
2067  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2068  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2069  *      - HT Capabilities supported by firmware
2070  *      - MCS information, Rx mask = 0xff
2071  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2072  */
2073 static void
2074 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2075                       struct mwifiex_private *priv)
2076 {
2077         int rx_mcs_supp;
2078         struct ieee80211_mcs_info mcs_set;
2079         u8 *mcs = (u8 *)&mcs_set;
2080         struct mwifiex_adapter *adapter = priv->adapter;
2081
2082         ht_info->ht_supported = true;
2083         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2084         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2085
2086         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2087
2088         /* Fill HT capability information */
2089         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2090                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2091         else
2092                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2093
2094         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2095                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2096         else
2097                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2098
2099         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2100                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2101         else
2102                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2103
2104         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2105                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2106         else
2107                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2108
2109         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2110                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2111         else
2112                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2113
2114         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2115                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2116         else
2117                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2118
2119         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2120                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2121         else
2122                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2123
2124         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2125                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2126         else
2127                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2128
2129         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2130         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2131
2132         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2133         /* Set MCS for 1x1/2x2 */
2134         memset(mcs, 0xff, rx_mcs_supp);
2135         /* Clear all the other values */
2136         memset(&mcs[rx_mcs_supp], 0,
2137                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2138         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2139             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2140                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2141                 SETHT_MCS32(mcs_set.rx_mask);
2142
2143         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2144
2145         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2146 }
2147
2148 /*
2149  *  create a new virtual interface with the given name
2150  */
2151 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2152                                               const char *name,
2153                                               enum nl80211_iftype type,
2154                                               u32 *flags,
2155                                               struct vif_params *params)
2156 {
2157         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2158         struct mwifiex_private *priv;
2159         struct net_device *dev;
2160         void *mdev_priv;
2161         struct wireless_dev *wdev;
2162
2163         if (!adapter)
2164                 return ERR_PTR(-EFAULT);
2165
2166         switch (type) {
2167         case NL80211_IFTYPE_UNSPECIFIED:
2168         case NL80211_IFTYPE_STATION:
2169         case NL80211_IFTYPE_ADHOC:
2170                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2171                 if (priv->bss_mode) {
2172                         wiphy_err(wiphy,
2173                                   "cannot create multiple sta/adhoc ifaces\n");
2174                         return ERR_PTR(-EINVAL);
2175                 }
2176
2177                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2178                 if (!wdev)
2179                         return ERR_PTR(-ENOMEM);
2180
2181                 wdev->wiphy = wiphy;
2182                 priv->wdev = wdev;
2183                 wdev->iftype = NL80211_IFTYPE_STATION;
2184
2185                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2186                         priv->bss_mode = NL80211_IFTYPE_STATION;
2187                 else
2188                         priv->bss_mode = type;
2189
2190                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2191                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2192                 priv->bss_priority = 0;
2193                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2194                 priv->bss_num = 0;
2195
2196                 break;
2197         case NL80211_IFTYPE_AP:
2198                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2199
2200                 if (priv->bss_mode) {
2201                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2202                         return ERR_PTR(-EINVAL);
2203                 }
2204
2205                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2206                 if (!wdev)
2207                         return ERR_PTR(-ENOMEM);
2208
2209                 priv->wdev = wdev;
2210                 wdev->wiphy = wiphy;
2211                 wdev->iftype = NL80211_IFTYPE_AP;
2212
2213                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2214                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2215                 priv->bss_priority = 0;
2216                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2217                 priv->bss_started = 0;
2218                 priv->bss_num = 0;
2219                 priv->bss_mode = type;
2220
2221                 break;
2222         case NL80211_IFTYPE_P2P_CLIENT:
2223                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2224
2225                 if (priv->bss_mode) {
2226                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2227                         return ERR_PTR(-EINVAL);
2228                 }
2229
2230                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2231                 if (!wdev)
2232                         return ERR_PTR(-ENOMEM);
2233
2234                 priv->wdev = wdev;
2235                 wdev->wiphy = wiphy;
2236
2237                 /* At start-up, wpa_supplicant tries to change the interface
2238                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2239                  */
2240                 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2241                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2242
2243                 /* Setting bss_type to P2P tells firmware that this interface
2244                  * is receiving P2P peers found during find phase and doing
2245                  * action frame handshake.
2246                  */
2247                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2248
2249                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2250                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2251                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2252                 priv->bss_started = 0;
2253                 priv->bss_num = 0;
2254
2255                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2256                         wdev = ERR_PTR(-EFAULT);
2257                         goto done;
2258                 }
2259
2260                 break;
2261         default:
2262                 wiphy_err(wiphy, "type not supported\n");
2263                 return ERR_PTR(-EINVAL);
2264         }
2265
2266         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2267                                ether_setup, IEEE80211_NUM_ACS, 1);
2268         if (!dev) {
2269                 wiphy_err(wiphy, "no memory available for netdevice\n");
2270                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2271                 wdev = ERR_PTR(-ENOMEM);
2272                 goto done;
2273         }
2274
2275         mwifiex_init_priv_params(priv, dev);
2276         priv->netdev = dev;
2277
2278         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2279         if (adapter->is_hw_11ac_capable)
2280                 mwifiex_setup_vht_caps(
2281                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2282
2283         if (adapter->config_bands & BAND_A)
2284                 mwifiex_setup_ht_caps(
2285                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2286
2287         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2288                 mwifiex_setup_vht_caps(
2289                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2290
2291         dev_net_set(dev, wiphy_net(wiphy));
2292         dev->ieee80211_ptr = priv->wdev;
2293         dev->ieee80211_ptr->iftype = priv->bss_mode;
2294         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2295         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2296
2297         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2298         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2299         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2300         dev->ethtool_ops = &mwifiex_ethtool_ops;
2301
2302         mdev_priv = netdev_priv(dev);
2303         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2304
2305         SET_NETDEV_DEV(dev, adapter->dev);
2306
2307         /* Register network device */
2308         if (register_netdevice(dev)) {
2309                 wiphy_err(wiphy, "cannot register virtual network device\n");
2310                 free_netdev(dev);
2311                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2312                 priv->netdev = NULL;
2313                 wdev = ERR_PTR(-EFAULT);
2314                 goto done;
2315         }
2316
2317         sema_init(&priv->async_sem, 1);
2318
2319         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2320
2321 #ifdef CONFIG_DEBUG_FS
2322         mwifiex_dev_debugfs_init(priv);
2323 #endif
2324
2325 done:
2326         if (IS_ERR(wdev)) {
2327                 kfree(priv->wdev);
2328                 priv->wdev = NULL;
2329         }
2330
2331         return wdev;
2332 }
2333 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2334
2335 /*
2336  * del_virtual_intf: remove the virtual interface determined by dev
2337  */
2338 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2339 {
2340         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2341
2342 #ifdef CONFIG_DEBUG_FS
2343         mwifiex_dev_debugfs_remove(priv);
2344 #endif
2345
2346         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2347
2348         if (netif_carrier_ok(priv->netdev))
2349                 netif_carrier_off(priv->netdev);
2350
2351         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2352                 unregister_netdevice(wdev->netdev);
2353
2354         /* Clear the priv in adapter */
2355         priv->netdev->ieee80211_ptr = NULL;
2356         priv->netdev = NULL;
2357         kfree(wdev);
2358         priv->wdev = NULL;
2359
2360         priv->media_connected = false;
2361
2362         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2363
2364         return 0;
2365 }
2366 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2367
2368 static bool
2369 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2370                              u8 max_byte_seq)
2371 {
2372         int j, k, valid_byte_cnt = 0;
2373         bool dont_care_byte = false;
2374
2375         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2376                 for (k = 0; k < 8; k++) {
2377                         if (pat->mask[j] & 1 << k) {
2378                                 memcpy(byte_seq + valid_byte_cnt,
2379                                        &pat->pattern[j * 8 + k], 1);
2380                                 valid_byte_cnt++;
2381                                 if (dont_care_byte)
2382                                         return false;
2383                         } else {
2384                                 if (valid_byte_cnt)
2385                                         dont_care_byte = true;
2386                         }
2387
2388                         if (valid_byte_cnt > max_byte_seq)
2389                                 return false;
2390                 }
2391         }
2392
2393         byte_seq[max_byte_seq] = valid_byte_cnt;
2394
2395         return true;
2396 }
2397
2398 #ifdef CONFIG_PM
2399 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2400                                     struct cfg80211_wowlan *wowlan)
2401 {
2402         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2403         struct mwifiex_ds_mef_cfg mef_cfg;
2404         struct mwifiex_mef_entry *mef_entry;
2405         int i, filt_num = 0, ret;
2406         bool first_pat = true;
2407         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2408         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2409         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2410         struct mwifiex_private *priv =
2411                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2412
2413         if (!wowlan) {
2414                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2415                 return 0;
2416         }
2417
2418         if (!priv->media_connected) {
2419                 dev_warn(adapter->dev,
2420                          "Can not configure WOWLAN in disconnected state\n");
2421                 return 0;
2422         }
2423
2424         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2425         if (!mef_entry)
2426                 return -ENOMEM;
2427
2428         memset(&mef_cfg, 0, sizeof(mef_cfg));
2429         mef_cfg.num_entries = 1;
2430         mef_cfg.mef_entry = mef_entry;
2431         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2432         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2433
2434         for (i = 0; i < wowlan->n_patterns; i++) {
2435                 memset(byte_seq, 0, sizeof(byte_seq));
2436                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2437                                                   byte_seq,
2438                                                   MWIFIEX_MEF_MAX_BYTESEQ)) {
2439                         wiphy_err(wiphy, "Pattern not supported\n");
2440                         kfree(mef_entry);
2441                         return -EOPNOTSUPP;
2442                 }
2443
2444                 if (!wowlan->patterns[i].pkt_offset) {
2445                         if (!(byte_seq[0] & 0x01) &&
2446                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2447                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2448                                 continue;
2449                         } else if (is_broadcast_ether_addr(byte_seq)) {
2450                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2451                                 continue;
2452                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2453                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2454                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2455                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2456                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2457                                 continue;
2458                         }
2459                 }
2460
2461                 mef_entry->filter[filt_num].repeat = 1;
2462                 mef_entry->filter[filt_num].offset =
2463                                                 wowlan->patterns[i].pkt_offset;
2464                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2465                        sizeof(byte_seq));
2466                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2467
2468                 if (first_pat)
2469                         first_pat = false;
2470                 else
2471                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2472
2473                 filt_num++;
2474         }
2475
2476         if (wowlan->magic_pkt) {
2477                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2478                 mef_entry->filter[filt_num].repeat = 16;
2479                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2480                        ETH_ALEN);
2481                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2482                                                                 ETH_ALEN;
2483                 mef_entry->filter[filt_num].offset = 28;
2484                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2485                 if (filt_num)
2486                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2487         }
2488
2489         if (!mef_cfg.criteria)
2490                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2491                                    MWIFIEX_CRITERIA_UNICAST |
2492                                    MWIFIEX_CRITERIA_MULTICAST;
2493
2494         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2495                                HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2496
2497         kfree(mef_entry);
2498         return ret;
2499 }
2500
2501 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2502 {
2503         return 0;
2504 }
2505
2506 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2507                                        bool enabled)
2508 {
2509         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2510
2511         device_set_wakeup_enable(adapter->dev, enabled);
2512 }
2513 #endif
2514
2515 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2516 {
2517         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2518         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2519         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2520
2521         if ((byte_seq[0] & 0x01) &&
2522             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2523                 return PACKET_TYPE_UNICAST;
2524         else if (!memcmp(byte_seq, bc_mac, 4))
2525                 return PACKET_TYPE_BROADCAST;
2526         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2527                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2528                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2529                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2530                 return PACKET_TYPE_MULTICAST;
2531
2532         return 0;
2533 }
2534
2535 static int
2536 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2537                                 struct cfg80211_coalesce_rules *crule,
2538                                 struct mwifiex_coalesce_rule *mrule)
2539 {
2540         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2541         struct filt_field_param *param;
2542         int i;
2543
2544         mrule->max_coalescing_delay = crule->delay;
2545
2546         param = mrule->params;
2547
2548         for (i = 0; i < crule->n_patterns; i++) {
2549                 memset(byte_seq, 0, sizeof(byte_seq));
2550                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2551                                                   byte_seq,
2552                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2553                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2554                         return -EOPNOTSUPP;
2555                 }
2556
2557                 if (!crule->patterns[i].pkt_offset) {
2558                         u8 pkt_type;
2559
2560                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2561                         if (pkt_type && mrule->pkt_type) {
2562                                 dev_err(priv->adapter->dev,
2563                                         "Multiple packet types not allowed\n");
2564                                 return -EOPNOTSUPP;
2565                         } else if (pkt_type) {
2566                                 mrule->pkt_type = pkt_type;
2567                                 continue;
2568                         }
2569                 }
2570
2571                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2572                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2573                 else
2574                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
2575
2576                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2577                 memcpy(param->operand_byte_stream, byte_seq,
2578                        param->operand_len);
2579                 param->offset = crule->patterns[i].pkt_offset;
2580                 param++;
2581
2582                 mrule->num_of_fields++;
2583         }
2584
2585         if (!mrule->pkt_type) {
2586                 dev_err(priv->adapter->dev,
2587                         "Packet type can not be determined\n");
2588                 return -EOPNOTSUPP;
2589         }
2590
2591         return 0;
2592 }
2593
2594 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2595                                          struct cfg80211_coalesce *coalesce)
2596 {
2597         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2598         int i, ret;
2599         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2600         struct mwifiex_private *priv =
2601                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2602
2603         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2604         if (!coalesce) {
2605                 dev_dbg(adapter->dev,
2606                         "Disable coalesce and reset all previous rules\n");
2607                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2608                                         HostCmd_ACT_GEN_SET, 0,
2609                                         &coalesce_cfg, true);
2610         }
2611
2612         coalesce_cfg.num_of_rules = coalesce->n_rules;
2613         for (i = 0; i < coalesce->n_rules; i++) {
2614                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2615                                                       &coalesce_cfg.rule[i]);
2616                 if (ret) {
2617                         dev_err(priv->adapter->dev,
2618                                 "Recheck the patterns provided for rule %d\n",
2619                                 i + 1);
2620                         return ret;
2621                 }
2622         }
2623
2624         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2625                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2626 }
2627
2628 /* cfg80211 ops handler for tdls_mgmt.
2629  * Function prepares TDLS action frame packets and forwards them to FW
2630  */
2631 static int
2632 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2633                            const u8 *peer, u8 action_code, u8 dialog_token,
2634                            u16 status_code, u32 peer_capability,
2635                            const u8 *extra_ies, size_t extra_ies_len)
2636 {
2637         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2638         int ret;
2639
2640         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2641                 return -ENOTSUPP;
2642
2643         /* make sure we are in station mode and connected */
2644         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2645                 return -ENOTSUPP;
2646
2647         switch (action_code) {
2648         case WLAN_TDLS_SETUP_REQUEST:
2649                 dev_dbg(priv->adapter->dev,
2650                         "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2651                          status_code);
2652                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2653                                                    dialog_token, status_code,
2654                                                    extra_ies, extra_ies_len);
2655                 break;
2656         case WLAN_TDLS_SETUP_RESPONSE:
2657                 dev_dbg(priv->adapter->dev,
2658                         "Send TDLS Setup Response to %pM status_code=%d\n",
2659                         peer, status_code);
2660                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2661                                                    dialog_token, status_code,
2662                                                    extra_ies, extra_ies_len);
2663                 break;
2664         case WLAN_TDLS_SETUP_CONFIRM:
2665                 dev_dbg(priv->adapter->dev,
2666                         "Send TDLS Confirm to %pM status_code=%d\n", peer,
2667                         status_code);
2668                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2669                                                    dialog_token, status_code,
2670                                                    extra_ies, extra_ies_len);
2671                 break;
2672         case WLAN_TDLS_TEARDOWN:
2673                 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2674                         peer);
2675                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2676                                                    dialog_token, status_code,
2677                                                    extra_ies, extra_ies_len);
2678                 break;
2679         case WLAN_TDLS_DISCOVERY_REQUEST:
2680                 dev_dbg(priv->adapter->dev,
2681                         "Send TDLS Discovery Request to %pM\n", peer);
2682                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2683                                                    dialog_token, status_code,
2684                                                    extra_ies, extra_ies_len);
2685                 break;
2686         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2687                 dev_dbg(priv->adapter->dev,
2688                         "Send TDLS Discovery Response to %pM\n", peer);
2689                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2690                                                    dialog_token, status_code,
2691                                                    extra_ies, extra_ies_len);
2692                 break;
2693         default:
2694                 dev_warn(priv->adapter->dev,
2695                          "Unknown TDLS mgmt/action frame %pM\n", peer);
2696                 ret = -EINVAL;
2697                 break;
2698         }
2699
2700         return ret;
2701 }
2702
2703 static int
2704 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2705                            const u8 *peer, enum nl80211_tdls_operation action)
2706 {
2707         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2708
2709         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2710             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2711                 return -ENOTSUPP;
2712
2713         /* make sure we are in station mode and connected */
2714         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2715                 return -ENOTSUPP;
2716
2717         dev_dbg(priv->adapter->dev,
2718                 "TDLS peer=%pM, oper=%d\n", peer, action);
2719
2720         switch (action) {
2721         case NL80211_TDLS_ENABLE_LINK:
2722                 action = MWIFIEX_TDLS_ENABLE_LINK;
2723                 break;
2724         case NL80211_TDLS_DISABLE_LINK:
2725                 action = MWIFIEX_TDLS_DISABLE_LINK;
2726                 break;
2727         case NL80211_TDLS_TEARDOWN:
2728                 /* shouldn't happen!*/
2729                 dev_warn(priv->adapter->dev,
2730                          "tdls_oper: teardown from driver not supported\n");
2731                 return -EINVAL;
2732         case NL80211_TDLS_SETUP:
2733                 /* shouldn't happen!*/
2734                 dev_warn(priv->adapter->dev,
2735                          "tdls_oper: setup from driver not supported\n");
2736                 return -EINVAL;
2737         case NL80211_TDLS_DISCOVERY_REQ:
2738                 /* shouldn't happen!*/
2739                 dev_warn(priv->adapter->dev,
2740                          "tdls_oper: discovery from driver not supported\n");
2741                 return -EINVAL;
2742         default:
2743                 dev_err(priv->adapter->dev,
2744                         "tdls_oper: operation not supported\n");
2745                 return -ENOTSUPP;
2746         }
2747
2748         return mwifiex_tdls_oper(priv, peer, action);
2749 }
2750
2751 static int
2752 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2753                              const u8 *mac, struct station_parameters *params)
2754 {
2755         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2756
2757         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2758                 return -ENOTSUPP;
2759
2760         /* make sure we are in station mode and connected */
2761         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2762                 return -ENOTSUPP;
2763
2764         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2765 }
2766
2767 static int
2768 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2769                                 const u8 *mac,
2770                                 struct station_parameters *params)
2771 {
2772         int ret;
2773         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2774
2775         /* we support change_station handler only for TDLS peers*/
2776         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2777                 return -ENOTSUPP;
2778
2779         /* make sure we are in station mode and connected */
2780         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2781                 return -ENOTSUPP;
2782
2783         priv->sta_params = params;
2784
2785         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2786         priv->sta_params = NULL;
2787
2788         return ret;
2789 }
2790
2791 /* station cfg80211 operations */
2792 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2793         .add_virtual_intf = mwifiex_add_virtual_intf,
2794         .del_virtual_intf = mwifiex_del_virtual_intf,
2795         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2796         .scan = mwifiex_cfg80211_scan,
2797         .connect = mwifiex_cfg80211_connect,
2798         .disconnect = mwifiex_cfg80211_disconnect,
2799         .get_station = mwifiex_cfg80211_get_station,
2800         .dump_station = mwifiex_cfg80211_dump_station,
2801         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2802         .join_ibss = mwifiex_cfg80211_join_ibss,
2803         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2804         .add_key = mwifiex_cfg80211_add_key,
2805         .del_key = mwifiex_cfg80211_del_key,
2806         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2807         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2808         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2809         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2810         .set_default_key = mwifiex_cfg80211_set_default_key,
2811         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2812         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2813         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2814         .start_ap = mwifiex_cfg80211_start_ap,
2815         .stop_ap = mwifiex_cfg80211_stop_ap,
2816         .change_beacon = mwifiex_cfg80211_change_beacon,
2817         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2818         .set_antenna = mwifiex_cfg80211_set_antenna,
2819         .del_station = mwifiex_cfg80211_del_station,
2820 #ifdef CONFIG_PM
2821         .suspend = mwifiex_cfg80211_suspend,
2822         .resume = mwifiex_cfg80211_resume,
2823         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2824 #endif
2825         .set_coalesce = mwifiex_cfg80211_set_coalesce,
2826         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2827         .tdls_oper = mwifiex_cfg80211_tdls_oper,
2828         .add_station = mwifiex_cfg80211_add_station,
2829         .change_station = mwifiex_cfg80211_change_station,
2830 };
2831
2832 #ifdef CONFIG_PM
2833 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2834         .flags = WIPHY_WOWLAN_MAGIC_PKT,
2835         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2836         .pattern_min_len = 1,
2837         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2838         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2839 };
2840 #endif
2841
2842 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2843 {
2844         if (!alpha2 || strlen(alpha2) != 2)
2845                 return false;
2846
2847         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2848                 return true;
2849
2850         return false;
2851 }
2852
2853 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2854         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2855         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2856         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2857         .pattern_min_len = 1,
2858         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2859         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2860 };
2861
2862 /*
2863  * This function registers the device with CFG802.11 subsystem.
2864  *
2865  * The function creates the wireless device/wiphy, populates it with
2866  * default parameters and handler function pointers, and finally
2867  * registers the device.
2868  */
2869
2870 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2871 {
2872         int ret;
2873         void *wdev_priv;
2874         struct wiphy *wiphy;
2875         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2876         u8 *country_code;
2877         u32 thr, retry;
2878
2879         /* create a new wiphy for use with cfg80211 */
2880         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2881                           sizeof(struct mwifiex_adapter *));
2882         if (!wiphy) {
2883                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2884                 return -ENOMEM;
2885         }
2886         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2887         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2888         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2889         wiphy->max_remain_on_channel_duration = 5000;
2890         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2891                                  BIT(NL80211_IFTYPE_ADHOC) |
2892                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2893                                  BIT(NL80211_IFTYPE_P2P_GO) |
2894                                  BIT(NL80211_IFTYPE_AP);
2895
2896         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2897         if (adapter->config_bands & BAND_A)
2898                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2899         else
2900                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2901
2902         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2903         wiphy->n_iface_combinations = 1;
2904
2905         /* Initialize cipher suits */
2906         wiphy->cipher_suites = mwifiex_cipher_suites;
2907         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2908
2909         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2910         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2911         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2912                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2913                         WIPHY_FLAG_AP_UAPSD |
2914                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2915
2916         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2917                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2918                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2919
2920         wiphy->regulatory_flags |=
2921                         REGULATORY_CUSTOM_REG |
2922                         REGULATORY_STRICT_REG;
2923
2924         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2925
2926 #ifdef CONFIG_PM
2927         wiphy->wowlan = &mwifiex_wowlan_support;
2928 #endif
2929
2930         wiphy->coalesce = &mwifiex_coalesce_support;
2931
2932         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2933                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2934                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2935
2936         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2937         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2938
2939         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2940                            NL80211_FEATURE_INACTIVITY_TIMER |
2941                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
2942                            NL80211_FEATURE_NEED_OBSS_SCAN;
2943
2944         /* Reserve space for mwifiex specific private data for BSS */
2945         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2946
2947         wiphy->reg_notifier = mwifiex_reg_notifier;
2948
2949         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2950         wdev_priv = wiphy_priv(wiphy);
2951         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2952
2953         set_wiphy_dev(wiphy, priv->adapter->dev);
2954
2955         ret = wiphy_register(wiphy);
2956         if (ret < 0) {
2957                 dev_err(adapter->dev,
2958                         "%s: wiphy_register failed: %d\n", __func__, ret);
2959                 wiphy_free(wiphy);
2960                 return ret;
2961         }
2962
2963         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
2964                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
2965                 regulatory_hint(wiphy, reg_alpha2);
2966         } else {
2967                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
2968                 if (country_code)
2969                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
2970                                    country_code);
2971         }
2972
2973         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2974                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
2975         wiphy->frag_threshold = thr;
2976         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2977                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
2978         wiphy->rts_threshold = thr;
2979         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2980                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
2981         wiphy->retry_short = (u8) retry;
2982         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2983                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
2984         wiphy->retry_long = (u8) retry;
2985
2986         adapter->wiphy = wiphy;
2987         return ret;
2988 }