drivers/net/wireless/mwifiex/cfg80211.c

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22
  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 /*
  46  * This function maps the nl802.11 channel type into driver channel type.
  47  *
  48  * The mapping is as follows -
  49  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  50  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  51  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  52  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  53  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  54  */
  55 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  56 {
  57         switch (chan_type) {
  58         case NL80211_CHAN_NO_HT:
  59         case NL80211_CHAN_HT20:
  60                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  61         case NL80211_CHAN_HT40PLUS:
  62                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  63         case NL80211_CHAN_HT40MINUS:
  64                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  65         default:
  66                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  67         }
  68 }
  69
  70 /*
  71  * This function checks whether WEP is set.
  72  */
  73 static int
  74 mwifiex_is_alg_wep(u32 cipher)
  75 {
  76         switch (cipher) {
  77         case WLAN_CIPHER_SUITE_WEP40:
  78         case WLAN_CIPHER_SUITE_WEP104:
  79                 return 1;
  80         default:
  81                 break;
  82         }
  83
  84         return 0;
  85 }
  86
  87 /*
  88  * This function retrieves the private structure from kernel wiphy structure.
  89  */
  90 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
  91 {
  92         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
  93 }
  94
  95 /*
  96  * CFG802.11 operation handler to delete a network key.
  97  */
  98 static int
  99 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 100                          u8 key_index, bool pairwise, const u8 *mac_addr)
 101 {
 102         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 103         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 104         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 105
 106         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 107                 wiphy_err(wiphy, "deleting the crypto keys\n");
 108                 return -EFAULT;
 109         }
 110
 111         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 112         return 0;
 113 }
 114
 115 /*
 116  * This function forms an skb for management frame.
 117  */
 118 static int
 119 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 120 {
 121         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 122         u16 pkt_len;
 123         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 124
 125         pkt_len = len + ETH_ALEN;
 126
 127         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 128                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 129         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 130
 131         memcpy(skb_push(skb, sizeof(tx_control)),
 132                &tx_control, sizeof(tx_control));
 133
 134         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 135
 136         /* Add packet data and address4 */
 137         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 138                sizeof(struct ieee80211_hdr_3addr));
 139         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 140         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 141                buf + sizeof(struct ieee80211_hdr_3addr),
 142                len - sizeof(struct ieee80211_hdr_3addr));
 143
 144         skb->priority = LOW_PRIO_TID;
 145         __net_timestamp(skb);
 146
 147         return 0;
 148 }
 149
 150 /*
 151  * CFG802.11 operation handler to transmit a management frame.
 152  */
 153 static int
 154 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 155                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 156 {
 157         const u8 *buf = params->buf;
 158         size_t len = params->len;
 159         struct sk_buff *skb;
 160         u16 pkt_len;
 161         const struct ieee80211_mgmt *mgmt;
 162         struct mwifiex_txinfo *tx_info;
 163         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 164
 165         if (!buf || !len) {
 166                 wiphy_err(wiphy, "invalid buffer and length\n");
 167                 return -EFAULT;
 168         }
 169
 170         mgmt = (const struct ieee80211_mgmt *)buf;
 171         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 172             ieee80211_is_probe_resp(mgmt->frame_control)) {
 173                 /* Since we support offload probe resp, we need to skip probe
 174                  * resp in AP or GO mode */
 175                 wiphy_dbg(wiphy,
 176                           "info: skip to send probe resp in AP or GO mode\n");
 177                 return 0;
 178         }
 179
 180         pkt_len = len + ETH_ALEN;
 181         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 182                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 183                             pkt_len + sizeof(pkt_len));
 184
 185         if (!skb) {
 186                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 187                 return -ENOMEM;
 188         }
 189
 190         tx_info = MWIFIEX_SKB_TXCB(skb);
 191         memset(tx_info, 0, sizeof(*tx_info));
 192         tx_info->bss_num = priv->bss_num;
 193         tx_info->bss_type = priv->bss_type;
 194         tx_info->pkt_len = pkt_len;
 195
 196         mwifiex_form_mgmt_frame(skb, buf, len);
 197         *cookie = prandom_u32() | 1;
 198
 199         if (ieee80211_is_action(mgmt->frame_control))
 200                 skb = mwifiex_clone_skb_for_tx_status(priv,
 201                                                       skb,
 202                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 203         else
 204                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 205                                         GFP_ATOMIC);
 206
 207         mwifiex_queue_tx_pkt(priv, skb);
 208
 209         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 210         return 0;
 211 }
 212
 213 /*
 214  * CFG802.11 operation handler to register a mgmt frame.
 215  */
 216 static void
 217 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 218                                      struct wireless_dev *wdev,
 219                                      u16 frame_type, bool reg)
 220 {
 221         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 222         u32 mask;
 223
 224         if (reg)
 225                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 226         else
 227                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 228
 229         if (mask != priv->mgmt_frame_mask) {
 230                 priv->mgmt_frame_mask = mask;
 231                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 232                                  HostCmd_ACT_GEN_SET, 0,
 233                                  &priv->mgmt_frame_mask, false);
 234                 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 235         }
 236 }
 237
 238 /*
 239  * CFG802.11 operation handler to remain on channel.
 240  */
 241 static int
 242 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 243                                    struct wireless_dev *wdev,
 244                                    struct ieee80211_channel *chan,
 245                                    unsigned int duration, u64 *cookie)
 246 {
 247         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 248         int ret;
 249
 250         if (!chan || !cookie) {
 251                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 252                 return -EINVAL;
 253         }
 254
 255         if (priv->roc_cfg.cookie) {
 256                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n",
 257                           priv->roc_cfg.cookie);
 258                 return -EBUSY;
 259         }
 260
 261         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 262                                          duration);
 263
 264         if (!ret) {
 265                 *cookie = prandom_u32() | 1;
 266                 priv->roc_cfg.cookie = *cookie;
 267                 priv->roc_cfg.chan = *chan;
 268
 269                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 270                                           duration, GFP_ATOMIC);
 271
 272                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 273         }
 274
 275         return ret;
 276 }
 277
 278 /*
 279  * CFG802.11 operation handler to cancel remain on channel.
 280  */
 281 static int
 282 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 283                                           struct wireless_dev *wdev, u64 cookie)
 284 {
 285         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 286         int ret;
 287
 288         if (cookie != priv->roc_cfg.cookie)
 289                 return -ENOENT;
 290
 291         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 292                                          &priv->roc_cfg.chan, 0);
 293
 294         if (!ret) {
 295                 cfg80211_remain_on_channel_expired(wdev, cookie,
 296                                                    &priv->roc_cfg.chan,
 297                                                    GFP_ATOMIC);
 298
 299                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 300
 301                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 302         }
 303
 304         return ret;
 305 }
 306
 307 /*
 308  * CFG802.11 operation handler to set Tx power.
 309  */
 310 static int
 311 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 312                               struct wireless_dev *wdev,
 313                               enum nl80211_tx_power_setting type,
 314                               int mbm)
 315 {
 316         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 317         struct mwifiex_private *priv;
 318         struct mwifiex_power_cfg power_cfg;
 319         int dbm = MBM_TO_DBM(mbm);
 320
 321         if (type == NL80211_TX_POWER_FIXED) {
 322                 power_cfg.is_power_auto = 0;
 323                 power_cfg.power_level = dbm;
 324         } else {
 325                 power_cfg.is_power_auto = 1;
 326         }
 327
 328         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 329
 330         return mwifiex_set_tx_power(priv, &power_cfg);
 331 }
 332
 333 /*
 334  * CFG802.11 operation handler to set Power Save option.
 335  *
 336  * The timeout value, if provided, is currently ignored.
 337  */
 338 static int
 339 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 340                                 struct net_device *dev,
 341                                 bool enabled, int timeout)
 342 {
 343         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 344         u32 ps_mode;
 345
 346         if (timeout)
 347                 wiphy_dbg(wiphy,
 348                           "info: ignore timeout value for IEEE Power Save\n");
 349
 350         ps_mode = enabled;
 351
 352         return mwifiex_drv_set_power(priv, &ps_mode);
 353 }
 354
 355 /*
 356  * CFG802.11 operation handler to set the default network key.
 357  */
 358 static int
 359 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 360                                  u8 key_index, bool unicast,
 361                                  bool multicast)
 362 {
 363         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 364
 365         /* Return if WEP key not configured */
 366         if (!priv->sec_info.wep_enabled)
 367                 return 0;
 368
 369         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 370                 priv->wep_key_curr_index = key_index;
 371         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 372                                       NULL, 0)) {
 373                 wiphy_err(wiphy, "set default Tx key index\n");
 374                 return -EFAULT;
 375         }
 376
 377         return 0;
 378 }
 379
 380 /*
 381  * CFG802.11 operation handler to add a network key.
 382  */
 383 static int
 384 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 385                          u8 key_index, bool pairwise, const u8 *mac_addr,
 386                          struct key_params *params)
 387 {
 388         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 389         struct mwifiex_wep_key *wep_key;
 390         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 391         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 392
 393         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 394             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 395              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 396                 if (params->key && params->key_len) {
 397                         wep_key = &priv->wep_key[key_index];
 398                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 399                         memcpy(wep_key->key_material, params->key,
 400                                params->key_len);
 401                         wep_key->key_index = key_index;
 402                         wep_key->key_length = params->key_len;
 403                         priv->sec_info.wep_enabled = 1;
 404                 }
 405                 return 0;
 406         }
 407
 408         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 409                                key_index, peer_mac, 0)) {
 410                 wiphy_err(wiphy, "crypto keys added\n");
 411                 return -EFAULT;
 412         }
 413
 414         return 0;
 415 }
 416
 417 /*
 418  * This function sends domain information to the firmware.
 419  *
 420  * The following information are passed to the firmware -
 421  *      - Country codes
 422  *      - Sub bands (first channel, number of channels, maximum Tx power)
 423  */
 424 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 425 {
 426         u8 no_of_triplet = 0;
 427         struct ieee80211_country_ie_triplet *t;
 428         u8 no_of_parsed_chan = 0;
 429         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 430         u8 i, flag = 0;
 431         enum ieee80211_band band;
 432         struct ieee80211_supported_band *sband;
 433         struct ieee80211_channel *ch;
 434         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 435         struct mwifiex_private *priv;
 436         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 437
 438         /* Set country code */
 439         domain_info->country_code[0] = adapter->country_code[0];
 440         domain_info->country_code[1] = adapter->country_code[1];
 441         domain_info->country_code[2] = ' ';
 442
 443         band = mwifiex_band_to_radio_type(adapter->config_bands);
 444         if (!wiphy->bands[band]) {
 445                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 446                 return -1;
 447         }
 448
 449         sband = wiphy->bands[band];
 450
 451         for (i = 0; i < sband->n_channels ; i++) {
 452                 ch = &sband->channels[i];
 453                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 454                         continue;
 455
 456                 if (!flag) {
 457                         flag = 1;
 458                         first_chan = (u32) ch->hw_value;
 459                         next_chan = first_chan;
 460                         max_pwr = ch->max_power;
 461                         no_of_parsed_chan = 1;
 462                         continue;
 463                 }
 464
 465                 if (ch->hw_value == next_chan + 1 &&
 466                     ch->max_power == max_pwr) {
 467                         next_chan++;
 468                         no_of_parsed_chan++;
 469                 } else {
 470                         t = &domain_info->triplet[no_of_triplet];
 471                         t->chans.first_channel = first_chan;
 472                         t->chans.num_channels = no_of_parsed_chan;
 473                         t->chans.max_power = max_pwr;
 474                         no_of_triplet++;
 475                         first_chan = (u32) ch->hw_value;
 476                         next_chan = first_chan;
 477                         max_pwr = ch->max_power;
 478                         no_of_parsed_chan = 1;
 479                 }
 480         }
 481
 482         if (flag) {
 483                 t = &domain_info->triplet[no_of_triplet];
 484                 t->chans.first_channel = first_chan;
 485                 t->chans.num_channels = no_of_parsed_chan;
 486                 t->chans.max_power = max_pwr;
 487                 no_of_triplet++;
 488         }
 489
 490         domain_info->no_of_triplet = no_of_triplet;
 491
 492         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 493
 494         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 495                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 496                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 497                 return -1;
 498         }
 499
 500         return 0;
 501 }
 502
 503 /*
 504  * CFG802.11 regulatory domain callback function.
 505  *
 506  * This function is called when the regulatory domain is changed due to the
 507  * following reasons -
 508  *      - Set by driver
 509  *      - Set by system core
 510  *      - Set by user
 511  *      - Set bt Country IE
 512  */
 513 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 514                                  struct regulatory_request *request)
 515 {
 516         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 517         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 518                                                         MWIFIEX_BSS_ROLE_ANY);
 519
 520         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 521                   request->alpha2[0], request->alpha2[1]);
 522
 523         switch (request->initiator) {
 524         case NL80211_REGDOM_SET_BY_DRIVER:
 525         case NL80211_REGDOM_SET_BY_CORE:
 526         case NL80211_REGDOM_SET_BY_USER:
 527         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 528                 break;
 529         default:
 530                 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
 531                           request->initiator);
 532                 return;
 533         }
 534
 535         /* Don't send world or same regdom info to firmware */
 536         if (strncmp(request->alpha2, "00", 2) &&
 537             strncmp(request->alpha2, adapter->country_code,
 538                     sizeof(request->alpha2))) {
 539                 memcpy(adapter->country_code, request->alpha2,
 540                        sizeof(request->alpha2));
 541                 mwifiex_send_domain_info_cmd_fw(wiphy);
 542                 mwifiex_dnld_txpwr_table(priv);
 543         }
 544 }
 545
 546 /*
 547  * This function sets the fragmentation threshold.
 548  *
 549  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 550  * and MWIFIEX_FRAG_MAX_VALUE.
 551  */
 552 static int
 553 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 554 {
 555         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 556             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 557                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 558
 559         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 560                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 561                                 &frag_thr, true);
 562 }
 563
 564 /*
 565  * This function sets the RTS threshold.
 566
 567  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 568  * and MWIFIEX_RTS_MAX_VALUE.
 569  */
 570 static int
 571 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 572 {
 573         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 574                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 575
 576         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 577                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 578                                 &rts_thr, true);
 579 }
 580
 581 /*
 582  * CFG802.11 operation handler to set wiphy parameters.
 583  *
 584  * This function can be used to set the RTS threshold and the
 585  * Fragmentation threshold of the driver.
 586  */
 587 static int
 588 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 589 {
 590         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 591         struct mwifiex_private *priv;
 592         struct mwifiex_uap_bss_param *bss_cfg;
 593         int ret, bss_started, i;
 594
 595         for (i = 0; i < adapter->priv_num; i++) {
 596                 priv = adapter->priv[i];
 597
 598                 switch (priv->bss_role) {
 599                 case MWIFIEX_BSS_ROLE_UAP:
 600                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 601                                           GFP_KERNEL);
 602                         if (!bss_cfg)
 603                                 return -ENOMEM;
 604
 605                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 606
 607                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 608                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 609                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 610                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 611                         if (changed & WIPHY_PARAM_RETRY_LONG)
 612                                 bss_cfg->retry_limit = wiphy->retry_long;
 613
 614                         bss_started = priv->bss_started;
 615
 616                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
 617                                                HostCmd_ACT_GEN_SET, 0,
 618                                                NULL, true);
 619                         if (ret) {
 620                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 621                                 kfree(bss_cfg);
 622                                 return ret;
 623                         }
 624
 625                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 626                                                HostCmd_ACT_GEN_SET,
 627                                                UAP_BSS_PARAMS_I, bss_cfg,
 628                                                false);
 629
 630                         kfree(bss_cfg);
 631
 632                         if (ret) {
 633                                 wiphy_err(wiphy, "Failed to set bss config\n");
 634                                 return ret;
 635                         }
 636
 637                         if (!bss_started)
 638                                 break;
 639
 640                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
 641                                                HostCmd_ACT_GEN_SET, 0,
 642                                                NULL, false);
 643                         if (ret) {
 644                                 wiphy_err(wiphy, "Failed to start BSS\n");
 645                                 return ret;
 646                         }
 647
 648                         break;
 649                 case MWIFIEX_BSS_ROLE_STA:
 650                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 651                                 ret = mwifiex_set_rts(priv,
 652                                                       wiphy->rts_threshold);
 653                                 if (ret)
 654                                         return ret;
 655                         }
 656                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 657                                 ret = mwifiex_set_frag(priv,
 658                                                        wiphy->frag_threshold);
 659                                 if (ret)
 660                                         return ret;
 661                         }
 662                         break;
 663                 }
 664         }
 665
 666         return 0;
 667 }
 668
 669 static int
 670 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 671 {
 672         u16 mode = P2P_MODE_DISABLE;
 673
 674         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 675                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 676
 677         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 678                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 679                 return -1;
 680
 681         return 0;
 682 }
 683
 684 /*
 685  * This function initializes the functionalities for P2P client.
 686  * The P2P client initialization sequence is:
 687  * disable -> device -> client
 688  */
 689 static int
 690 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 691 {
 692         u16 mode;
 693
 694         if (mwifiex_cfg80211_deinit_p2p(priv))
 695                 return -1;
 696
 697         mode = P2P_MODE_DEVICE;
 698         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 699                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 700                 return -1;
 701
 702         mode = P2P_MODE_CLIENT;
 703         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 704                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 705                 return -1;
 706
 707         return 0;
 708 }
 709
 710 /*
 711  * This function initializes the functionalities for P2P GO.
 712  * The P2P GO initialization sequence is:
 713  * disable -> device -> GO
 714  */
 715 static int
 716 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 717 {
 718         u16 mode;
 719
 720         if (mwifiex_cfg80211_deinit_p2p(priv))
 721                 return -1;
 722
 723         mode = P2P_MODE_DEVICE;
 724         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 725                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 726                 return -1;
 727
 728         mode = P2P_MODE_GO;
 729         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 730                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 731                 return -1;
 732
 733         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 734                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 735
 736         return 0;
 737 }
 738
 739 /*
 740  * CFG802.11 operation handler to change interface type.
 741  */
 742 static int
 743 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 744                                      struct net_device *dev,
 745                                      enum nl80211_iftype type, u32 *flags,
 746                                      struct vif_params *params)
 747 {
 748         int ret;
 749         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 750
 751         switch (dev->ieee80211_ptr->iftype) {
 752         case NL80211_IFTYPE_ADHOC:
 753                 switch (type) {
 754                 case NL80211_IFTYPE_STATION:
 755                         break;
 756                 case NL80211_IFTYPE_UNSPECIFIED:
 757                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 758                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 759                         return 0;
 760                 case NL80211_IFTYPE_AP:
 761                 default:
 762                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 763                                   dev->name, type);
 764                         return -EOPNOTSUPP;
 765                 }
 766                 break;
 767         case NL80211_IFTYPE_STATION:
 768                 switch (type) {
 769                 case NL80211_IFTYPE_ADHOC:
 770                         break;
 771                 case NL80211_IFTYPE_P2P_CLIENT:
 772                         if (mwifiex_cfg80211_init_p2p_client(priv))
 773                                 return -EFAULT;
 774                         dev->ieee80211_ptr->iftype = type;
 775                         return 0;
 776                 case NL80211_IFTYPE_P2P_GO:
 777                         if (mwifiex_cfg80211_init_p2p_go(priv))
 778                                 return -EFAULT;
 779                         dev->ieee80211_ptr->iftype = type;
 780                         return 0;
 781                 case NL80211_IFTYPE_UNSPECIFIED:
 782                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 783                 case NL80211_IFTYPE_STATION:    /* 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_AP:
 793                 switch (type) {
 794                 case NL80211_IFTYPE_UNSPECIFIED:
 795                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 796                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 797                         return 0;
 798                 case NL80211_IFTYPE_ADHOC:
 799                 case NL80211_IFTYPE_STATION:
 800                 default:
 801                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 802                                   dev->name, type);
 803                         return -EOPNOTSUPP;
 804                 }
 805                 break;
 806         case NL80211_IFTYPE_P2P_CLIENT:
 807         case NL80211_IFTYPE_P2P_GO:
 808                 switch (type) {
 809                 case NL80211_IFTYPE_STATION:
 810                         if (mwifiex_cfg80211_deinit_p2p(priv))
 811                                 return -EFAULT;
 812                         dev->ieee80211_ptr->iftype = type;
 813                         return 0;
 814                 default:
 815                         return -EOPNOTSUPP;
 816                 }
 817                 break;
 818         default:
 819                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 820                           dev->name, dev->ieee80211_ptr->iftype);
 821                 return -EOPNOTSUPP;
 822         }
 823
 824         dev->ieee80211_ptr->iftype = type;
 825         priv->bss_mode = type;
 826         mwifiex_deauthenticate(priv, NULL);
 827
 828         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 829
 830         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 831                                HostCmd_ACT_GEN_SET, 0, NULL, true);
 832
 833         return ret;
 834 }
 835
 836 static void
 837 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 838                      struct rate_info *rate)
 839 {
 840         struct mwifiex_adapter *adapter = priv->adapter;
 841
 842         if (adapter->is_hw_11ac_capable) {
 843                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 844                 if (tx_htinfo & BIT(0)) {
 845                         /* HT */
 846                         rate->mcs = priv->tx_rate;
 847                         rate->flags |= RATE_INFO_FLAGS_MCS;
 848                 }
 849                 if (tx_htinfo & BIT(1)) {
 850                         /* VHT */
 851                         rate->mcs = priv->tx_rate & 0x0F;
 852                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 853                 }
 854
 855                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 856                         /* HT or VHT */
 857                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 858                         case 0:
 859                                 rate->bw = RATE_INFO_BW_20;
 860                                 break;
 861                         case (BIT(2)):
 862                                 rate->bw = RATE_INFO_BW_40;
 863                                 break;
 864                         case (BIT(3)):
 865                                 rate->bw = RATE_INFO_BW_80;
 866                                 break;
 867                         case (BIT(3) | BIT(2)):
 868                                 rate->bw = RATE_INFO_BW_160;
 869                                 break;
 870                         }
 871
 872                         if (tx_htinfo & BIT(4))
 873                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 874
 875                         if ((priv->tx_rate >> 4) == 1)
 876                                 rate->nss = 2;
 877                         else
 878                                 rate->nss = 1;
 879                 }
 880         } else {
 881                 /*
 882                  * Bit 0 in tx_htinfo indicates that current Tx rate
 883                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 884                  */
 885                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 886                         rate->mcs = priv->tx_rate;
 887                         rate->flags |= RATE_INFO_FLAGS_MCS;
 888                         rate->bw = RATE_INFO_BW_20;
 889                         if (tx_htinfo & BIT(1))
 890                                 rate->bw = RATE_INFO_BW_40;
 891                         if (tx_htinfo & BIT(2))
 892                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 893                 }
 894         }
 895 }
 896
 897 /*
 898  * This function dumps the station information on a buffer.
 899  *
 900  * The following information are shown -
 901  *      - Total bytes transmitted
 902  *      - Total bytes received
 903  *      - Total packets transmitted
 904  *      - Total packets received
 905  *      - Signal quality level
 906  *      - Transmission rate
 907  */
 908 static int
 909 mwifiex_dump_station_info(struct mwifiex_private *priv,
 910                           struct station_info *sinfo)
 911 {
 912         u32 rate;
 913
 914         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
 915                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
 916                         BIT(NL80211_STA_INFO_TX_BITRATE) |
 917                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
 918
 919         /* Get signal information from the firmware */
 920         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
 921                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
 922                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 923                 return -EFAULT;
 924         }
 925
 926         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 927                 dev_err(priv->adapter->dev, "getting data rate\n");
 928                 return -EFAULT;
 929         }
 930
 931         /* Get DTIM period information from firmware */
 932         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 933                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 934                          &priv->dtim_period, true);
 935
 936         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 937
 938         sinfo->signal_avg = priv->bcn_rssi_avg;
 939         sinfo->rx_bytes = priv->stats.rx_bytes;
 940         sinfo->tx_bytes = priv->stats.tx_bytes;
 941         sinfo->rx_packets = priv->stats.rx_packets;
 942         sinfo->tx_packets = priv->stats.tx_packets;
 943         sinfo->signal = priv->bcn_rssi_avg;
 944         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 945         sinfo->txrate.legacy = rate * 5;
 946
 947         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 948                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
 949                 sinfo->bss_param.flags = 0;
 950                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 951                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 952                         sinfo->bss_param.flags |=
 953                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 954                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 955                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 956                         sinfo->bss_param.flags |=
 957                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 958                 sinfo->bss_param.dtim_period = priv->dtim_period;
 959                 sinfo->bss_param.beacon_interval =
 960                         priv->curr_bss_params.bss_descriptor.beacon_period;
 961         }
 962
 963         return 0;
 964 }
 965
 966 /*
 967  * CFG802.11 operation handler to get station information.
 968  *
 969  * This function only works in connected mode, and dumps the
 970  * requested station information, if available.
 971  */
 972 static int
 973 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 974                              const u8 *mac, struct station_info *sinfo)
 975 {
 976         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 977
 978         if (!priv->media_connected)
 979                 return -ENOENT;
 980         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 981                 return -ENOENT;
 982
 983         return mwifiex_dump_station_info(priv, sinfo);
 984 }
 985
 986 /*
 987  * CFG802.11 operation handler to dump station information.
 988  */
 989 static int
 990 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 991                               int idx, u8 *mac, struct station_info *sinfo)
 992 {
 993         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 994
 995         if (!priv->media_connected || idx)
 996                 return -ENOENT;
 997
 998         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 999
1000         return mwifiex_dump_station_info(priv, sinfo);
1001 }
1002
1003 static int
1004 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1005                              int idx, struct survey_info *survey)
1006 {
1007         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1008         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1009         enum ieee80211_band band;
1010
1011         dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
1012
1013         memset(survey, 0, sizeof(struct survey_info));
1014
1015         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1016             priv->media_connected && idx == 0) {
1017                         u8 curr_bss_band = priv->curr_bss_params.band;
1018                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1019
1020                         band = mwifiex_band_to_radio_type(curr_bss_band);
1021                         survey->channel = ieee80211_get_channel(wiphy,
1022                                 ieee80211_channel_to_frequency(chan, band));
1023
1024                         if (priv->bcn_nf_last) {
1025                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1026                                 survey->noise = priv->bcn_nf_last;
1027                         }
1028                         return 0;
1029         }
1030
1031         if (idx >= priv->adapter->num_in_chan_stats)
1032                 return -ENOENT;
1033
1034         if (!pchan_stats[idx].cca_scan_dur)
1035                 return 0;
1036
1037         band = pchan_stats[idx].bandcfg;
1038         survey->channel = ieee80211_get_channel(wiphy,
1039             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1040         survey->filled = SURVEY_INFO_NOISE_DBM |
1041                          SURVEY_INFO_TIME |
1042                          SURVEY_INFO_TIME_BUSY;
1043         survey->noise = pchan_stats[idx].noise;
1044         survey->time = pchan_stats[idx].cca_scan_dur;
1045         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1046
1047         return 0;
1048 }
1049
1050 /* Supported rates to be advertised to the cfg80211 */
1051 static struct ieee80211_rate mwifiex_rates[] = {
1052         {.bitrate = 10, .hw_value = 2, },
1053         {.bitrate = 20, .hw_value = 4, },
1054         {.bitrate = 55, .hw_value = 11, },
1055         {.bitrate = 110, .hw_value = 22, },
1056         {.bitrate = 60, .hw_value = 12, },
1057         {.bitrate = 90, .hw_value = 18, },
1058         {.bitrate = 120, .hw_value = 24, },
1059         {.bitrate = 180, .hw_value = 36, },
1060         {.bitrate = 240, .hw_value = 48, },
1061         {.bitrate = 360, .hw_value = 72, },
1062         {.bitrate = 480, .hw_value = 96, },
1063         {.bitrate = 540, .hw_value = 108, },
1064 };
1065
1066 /* Channel definitions to be advertised to cfg80211 */
1067 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1068         {.center_freq = 2412, .hw_value = 1, },
1069         {.center_freq = 2417, .hw_value = 2, },
1070         {.center_freq = 2422, .hw_value = 3, },
1071         {.center_freq = 2427, .hw_value = 4, },
1072         {.center_freq = 2432, .hw_value = 5, },
1073         {.center_freq = 2437, .hw_value = 6, },
1074         {.center_freq = 2442, .hw_value = 7, },
1075         {.center_freq = 2447, .hw_value = 8, },
1076         {.center_freq = 2452, .hw_value = 9, },
1077         {.center_freq = 2457, .hw_value = 10, },
1078         {.center_freq = 2462, .hw_value = 11, },
1079         {.center_freq = 2467, .hw_value = 12, },
1080         {.center_freq = 2472, .hw_value = 13, },
1081         {.center_freq = 2484, .hw_value = 14, },
1082 };
1083
1084 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1085         .channels = mwifiex_channels_2ghz,
1086         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1087         .bitrates = mwifiex_rates,
1088         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1089 };
1090
1091 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1092         {.center_freq = 5040, .hw_value = 8, },
1093         {.center_freq = 5060, .hw_value = 12, },
1094         {.center_freq = 5080, .hw_value = 16, },
1095         {.center_freq = 5170, .hw_value = 34, },
1096         {.center_freq = 5190, .hw_value = 38, },
1097         {.center_freq = 5210, .hw_value = 42, },
1098         {.center_freq = 5230, .hw_value = 46, },
1099         {.center_freq = 5180, .hw_value = 36, },
1100         {.center_freq = 5200, .hw_value = 40, },
1101         {.center_freq = 5220, .hw_value = 44, },
1102         {.center_freq = 5240, .hw_value = 48, },
1103         {.center_freq = 5260, .hw_value = 52, },
1104         {.center_freq = 5280, .hw_value = 56, },
1105         {.center_freq = 5300, .hw_value = 60, },
1106         {.center_freq = 5320, .hw_value = 64, },
1107         {.center_freq = 5500, .hw_value = 100, },
1108         {.center_freq = 5520, .hw_value = 104, },
1109         {.center_freq = 5540, .hw_value = 108, },
1110         {.center_freq = 5560, .hw_value = 112, },
1111         {.center_freq = 5580, .hw_value = 116, },
1112         {.center_freq = 5600, .hw_value = 120, },
1113         {.center_freq = 5620, .hw_value = 124, },
1114         {.center_freq = 5640, .hw_value = 128, },
1115         {.center_freq = 5660, .hw_value = 132, },
1116         {.center_freq = 5680, .hw_value = 136, },
1117         {.center_freq = 5700, .hw_value = 140, },
1118         {.center_freq = 5745, .hw_value = 149, },
1119         {.center_freq = 5765, .hw_value = 153, },
1120         {.center_freq = 5785, .hw_value = 157, },
1121         {.center_freq = 5805, .hw_value = 161, },
1122         {.center_freq = 5825, .hw_value = 165, },
1123 };
1124
1125 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1126         .channels = mwifiex_channels_5ghz,
1127         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1128         .bitrates = mwifiex_rates + 4,
1129         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1130 };
1131
1132
1133 /* Supported crypto cipher suits to be advertised to cfg80211 */
1134 static const u32 mwifiex_cipher_suites[] = {
1135         WLAN_CIPHER_SUITE_WEP40,
1136         WLAN_CIPHER_SUITE_WEP104,
1137         WLAN_CIPHER_SUITE_TKIP,
1138         WLAN_CIPHER_SUITE_CCMP,
1139         WLAN_CIPHER_SUITE_AES_CMAC,
1140 };
1141
1142 /* Supported mgmt frame types to be advertised to cfg80211 */
1143 static const struct ieee80211_txrx_stypes
1144 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1145         [NL80211_IFTYPE_STATION] = {
1146                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1147                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1148                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1149                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1150         },
1151         [NL80211_IFTYPE_AP] = {
1152                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1153                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1154                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1155                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1156         },
1157         [NL80211_IFTYPE_P2P_CLIENT] = {
1158                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1159                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1160                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1161                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1162         },
1163         [NL80211_IFTYPE_P2P_GO] = {
1164                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1165                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1166                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1167                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1168         },
1169 };
1170
1171 /*
1172  * CFG802.11 operation handler for setting bit rates.
1173  *
1174  * Function configures data rates to firmware using bitrate mask
1175  * provided by cfg80211.
1176  */
1177 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1178                                 struct net_device *dev,
1179                                 const u8 *peer,
1180                                 const struct cfg80211_bitrate_mask *mask)
1181 {
1182         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1183         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1184         enum ieee80211_band band;
1185         struct mwifiex_adapter *adapter = priv->adapter;
1186
1187         if (!priv->media_connected) {
1188                 dev_err(adapter->dev,
1189                         "Can not set Tx data rate in disconnected state\n");
1190                 return -EINVAL;
1191         }
1192
1193         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1194
1195         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1196
1197         /* Fill HR/DSSS rates. */
1198         if (band == IEEE80211_BAND_2GHZ)
1199                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1200
1201         /* Fill OFDM rates */
1202         if (band == IEEE80211_BAND_2GHZ)
1203                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1204         else
1205                 bitmap_rates[1] = mask->control[band].legacy;
1206
1207         /* Fill HT MCS rates */
1208         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1209         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1210                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1211
1212        /* Fill VHT MCS rates */
1213         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1214                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1215                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1216                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1217         }
1218
1219         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1220                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1221 }
1222
1223 /*
1224  * CFG802.11 operation handler for connection quality monitoring.
1225  *
1226  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1227  * events to FW.
1228  */
1229 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1230                                                 struct net_device *dev,
1231                                                 s32 rssi_thold, u32 rssi_hyst)
1232 {
1233         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1234         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1235
1236         priv->cqm_rssi_thold = rssi_thold;
1237         priv->cqm_rssi_hyst = rssi_hyst;
1238
1239         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1240         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1241
1242         /* Subscribe/unsubscribe low and high rssi events */
1243         if (rssi_thold && rssi_hyst) {
1244                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1245                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1246                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1247                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1248                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1249                 return mwifiex_send_cmd(priv,
1250                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1251                                         0, 0, &subsc_evt, true);
1252         } else {
1253                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1254                 return mwifiex_send_cmd(priv,
1255                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1256                                         0, 0, &subsc_evt, true);
1257         }
1258
1259         return 0;
1260 }
1261
1262 /* cfg80211 operation handler for change_beacon.
1263  * Function retrieves and sets modified management IEs to FW.
1264  */
1265 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1266                                           struct net_device *dev,
1267                                           struct cfg80211_beacon_data *data)
1268 {
1269         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1270
1271         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1272                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1273                 return -EINVAL;
1274         }
1275
1276         if (!priv->bss_started) {
1277                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1278                 return -EINVAL;
1279         }
1280
1281         if (mwifiex_set_mgmt_ies(priv, data)) {
1282                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1283                 return -EFAULT;
1284         }
1285
1286         return 0;
1287 }
1288
1289 /* cfg80211 operation handler for del_station.
1290  * Function deauthenticates station which value is provided in mac parameter.
1291  * If mac is NULL/broadcast, all stations in associated station list are
1292  * deauthenticated. If bss is not started or there are no stations in
1293  * associated stations list, no action is taken.
1294  */
1295 static int
1296 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1297                              struct station_del_parameters *params)
1298 {
1299         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1300         struct mwifiex_sta_node *sta_node;
1301         u8 deauth_mac[ETH_ALEN];
1302         unsigned long flags;
1303
1304         if (list_empty(&priv->sta_list) || !priv->bss_started)
1305                 return 0;
1306
1307         if (!params->mac || is_broadcast_ether_addr(params->mac))
1308                 return 0;
1309
1310         wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac);
1311
1312         memset(deauth_mac, 0, ETH_ALEN);
1313
1314         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1315         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1316         if (sta_node)
1317                 ether_addr_copy(deauth_mac, params->mac);
1318         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1319
1320         if (is_valid_ether_addr(deauth_mac)) {
1321                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1322                                      HostCmd_ACT_GEN_SET, 0,
1323                                      deauth_mac, true))
1324                         return -1;
1325         }
1326
1327         return 0;
1328 }
1329
1330 static int
1331 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1332 {
1333         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1334         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1335                                                         MWIFIEX_BSS_ROLE_ANY);
1336         struct mwifiex_ds_ant_cfg ant_cfg;
1337
1338         if (!tx_ant || !rx_ant)
1339                 return -EOPNOTSUPP;
1340
1341         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1342                 /* Not a MIMO chip. User should provide specific antenna number
1343                  * for Tx/Rx path or enable all antennas for diversity
1344                  */
1345                 if (tx_ant != rx_ant)
1346                         return -EOPNOTSUPP;
1347
1348                 if ((tx_ant & (tx_ant - 1)) &&
1349                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1350                         return -EOPNOTSUPP;
1351
1352                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1353                     (priv->adapter->number_of_antenna > 1)) {
1354                         tx_ant = RF_ANTENNA_AUTO;
1355                         rx_ant = RF_ANTENNA_AUTO;
1356                 }
1357         } else {
1358                 struct ieee80211_sta_ht_cap *ht_info;
1359                 int rx_mcs_supp;
1360                 enum ieee80211_band band;
1361
1362                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1363                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1364                         if (adapter->is_hw_11ac_capable)
1365                                 adapter->usr_dot_11ac_mcs_support =
1366                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1367                 } else {
1368                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1369                         if (adapter->is_hw_11ac_capable)
1370                                 adapter->usr_dot_11ac_mcs_support =
1371                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1372                 }
1373
1374                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1375                         if (!adapter->wiphy->bands[band])
1376                                 continue;
1377
1378                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1379                         rx_mcs_supp =
1380                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1381                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1382                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1383                 }
1384         }
1385
1386         ant_cfg.tx_ant = tx_ant;
1387         ant_cfg.rx_ant = rx_ant;
1388
1389         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1390                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1391 }
1392
1393 /* cfg80211 operation handler for stop ap.
1394  * Function stops BSS running at uAP interface.
1395  */
1396 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1397 {
1398         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1399
1400         if (mwifiex_del_mgmt_ies(priv))
1401                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1402
1403         priv->ap_11n_enabled = 0;
1404
1405         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1406                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1407                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1408                 return -1;
1409         }
1410
1411         return 0;
1412 }
1413
1414 /* cfg80211 operation handler for start_ap.
1415  * Function sets beacon period, DTIM period, SSID and security into
1416  * AP config structure.
1417  * AP is configured with these settings and BSS is started.
1418  */
1419 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1420                                      struct net_device *dev,
1421                                      struct cfg80211_ap_settings *params)
1422 {
1423         struct mwifiex_uap_bss_param *bss_cfg;
1424         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1425         u8 config_bands = 0;
1426
1427         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1428                 return -1;
1429         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1430                 return -1;
1431
1432         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1433         if (!bss_cfg)
1434                 return -ENOMEM;
1435
1436         mwifiex_set_sys_config_invalid_data(bss_cfg);
1437
1438         if (params->beacon_interval)
1439                 bss_cfg->beacon_period = params->beacon_interval;
1440         if (params->dtim_period)
1441                 bss_cfg->dtim_period = params->dtim_period;
1442
1443         if (params->ssid && params->ssid_len) {
1444                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1445                 bss_cfg->ssid.ssid_len = params->ssid_len;
1446         }
1447
1448         switch (params->hidden_ssid) {
1449         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1450                 bss_cfg->bcast_ssid_ctl = 1;
1451                 break;
1452         case NL80211_HIDDEN_SSID_ZERO_LEN:
1453                 bss_cfg->bcast_ssid_ctl = 0;
1454                 break;
1455         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1456                 /* firmware doesn't support this type of hidden SSID */
1457         default:
1458                 kfree(bss_cfg);
1459                 return -EINVAL;
1460         }
1461
1462         bss_cfg->channel = ieee80211_frequency_to_channel(
1463                                 params->chandef.chan->center_freq);
1464
1465         /* Set appropriate bands */
1466         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1467                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1468                 config_bands = BAND_B | BAND_G;
1469
1470                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1471                         config_bands |= BAND_GN;
1472         } else {
1473                 bss_cfg->band_cfg = BAND_CONFIG_A;
1474                 config_bands = BAND_A;
1475
1476                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1477                         config_bands |= BAND_AN;
1478
1479                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1480                         config_bands |= BAND_AAC;
1481         }
1482
1483         if (!((config_bands | priv->adapter->fw_bands) &
1484               ~priv->adapter->fw_bands))
1485                 priv->adapter->config_bands = config_bands;
1486
1487         mwifiex_set_uap_rates(bss_cfg, params);
1488         mwifiex_send_domain_info_cmd_fw(wiphy);
1489
1490         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1491                 kfree(bss_cfg);
1492                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1493                 return -1;
1494         }
1495
1496         mwifiex_set_ht_params(priv, bss_cfg, params);
1497
1498         if (priv->adapter->is_hw_11ac_capable) {
1499                 mwifiex_set_vht_params(priv, bss_cfg, params);
1500                 mwifiex_set_vht_width(priv, params->chandef.width,
1501                                       priv->ap_11ac_enabled);
1502         }
1503
1504         if (priv->ap_11ac_enabled)
1505                 mwifiex_set_11ac_ba_params(priv);
1506         else
1507                 mwifiex_set_ba_params(priv);
1508
1509         mwifiex_set_wmm_params(priv, bss_cfg, params);
1510
1511         if (params->inactivity_timeout > 0) {
1512                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1513                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1514                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1515         }
1516
1517         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1518                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1519                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1520                 kfree(bss_cfg);
1521                 return -1;
1522         }
1523
1524         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1525                              HostCmd_ACT_GEN_SET,
1526                              UAP_BSS_PARAMS_I, bss_cfg, false)) {
1527                 wiphy_err(wiphy, "Failed to set the SSID\n");
1528                 kfree(bss_cfg);
1529                 return -1;
1530         }
1531
1532         kfree(bss_cfg);
1533
1534         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1535                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1536                 wiphy_err(wiphy, "Failed to start the BSS\n");
1537                 return -1;
1538         }
1539
1540         if (priv->sec_info.wep_enabled)
1541                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1542         else
1543                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1544
1545         if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1546                              HostCmd_ACT_GEN_SET, 0,
1547                              &priv->curr_pkt_filter, true))
1548                 return -1;
1549
1550         return 0;
1551 }
1552
1553 /*
1554  * CFG802.11 operation handler for disconnection request.
1555  *
1556  * This function does not work when there is already a disconnection
1557  * procedure going on.
1558  */
1559 static int
1560 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1561                             u16 reason_code)
1562 {
1563         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1564
1565         if (mwifiex_deauthenticate(priv, NULL))
1566                 return -EFAULT;
1567
1568         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1569                 " reason code %d\n", priv->cfg_bssid, reason_code);
1570
1571         memset(priv->cfg_bssid, 0, ETH_ALEN);
1572         priv->hs2_enabled = false;
1573
1574         return 0;
1575 }
1576
1577 /*
1578  * This function informs the CFG802.11 subsystem of a new IBSS.
1579  *
1580  * The following information are sent to the CFG802.11 subsystem
1581  * to register the new IBSS. If we do not register the new IBSS,
1582  * a kernel panic will result.
1583  *      - SSID
1584  *      - SSID length
1585  *      - BSSID
1586  *      - Channel
1587  */
1588 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1589 {
1590         struct ieee80211_channel *chan;
1591         struct mwifiex_bss_info bss_info;
1592         struct cfg80211_bss *bss;
1593         int ie_len;
1594         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1595         enum ieee80211_band band;
1596
1597         if (mwifiex_get_bss_info(priv, &bss_info))
1598                 return -1;
1599
1600         ie_buf[0] = WLAN_EID_SSID;
1601         ie_buf[1] = bss_info.ssid.ssid_len;
1602
1603         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1604                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1605         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1606
1607         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1608         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1609                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1610                                                        band));
1611
1612         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1613                                   CFG80211_BSS_FTYPE_UNKNOWN,
1614                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1615                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1616         cfg80211_put_bss(priv->wdev->wiphy, bss);
1617         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1618
1619         return 0;
1620 }
1621
1622 /*
1623  * This function connects with a BSS.
1624  *
1625  * This function handles both Infra and Ad-Hoc modes. It also performs
1626  * validity checking on the provided parameters, disconnects from the
1627  * current BSS (if any), sets up the association/scan parameters,
1628  * including security settings, and performs specific SSID scan before
1629  * trying to connect.
1630  *
1631  * For Infra mode, the function returns failure if the specified SSID
1632  * is not found in scan table. However, for Ad-Hoc mode, it can create
1633  * the IBSS if it does not exist. On successful completion in either case,
1634  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1635  */
1636 static int
1637 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1638                        const u8 *ssid, const u8 *bssid, int mode,
1639                        struct ieee80211_channel *channel,
1640                        struct cfg80211_connect_params *sme, bool privacy)
1641 {
1642         struct cfg80211_ssid req_ssid;
1643         int ret, auth_type = 0;
1644         struct cfg80211_bss *bss = NULL;
1645         u8 is_scanning_required = 0;
1646
1647         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1648
1649         req_ssid.ssid_len = ssid_len;
1650         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1651                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1652                 return -EINVAL;
1653         }
1654
1655         memcpy(req_ssid.ssid, ssid, ssid_len);
1656         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1657                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1658                 return -EINVAL;
1659         }
1660
1661         /* As this is new association, clear locally stored
1662          * keys and security related flags */
1663         priv->sec_info.wpa_enabled = false;
1664         priv->sec_info.wpa2_enabled = false;
1665         priv->wep_key_curr_index = 0;
1666         priv->sec_info.encryption_mode = 0;
1667         priv->sec_info.is_authtype_auto = 0;
1668         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1669
1670         if (mode == NL80211_IFTYPE_ADHOC) {
1671                 /* "privacy" is set only for ad-hoc mode */
1672                 if (privacy) {
1673                         /*
1674                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1675                          * the firmware can find a matching network from the
1676                          * scan. The cfg80211 does not give us the encryption
1677                          * mode at this stage so just setting it to WEP here.
1678                          */
1679                         priv->sec_info.encryption_mode =
1680                                         WLAN_CIPHER_SUITE_WEP104;
1681                         priv->sec_info.authentication_mode =
1682                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1683                 }
1684
1685                 goto done;
1686         }
1687
1688         /* Now handle infra mode. "sme" is valid for infra mode only */
1689         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1690                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1691                 priv->sec_info.is_authtype_auto = 1;
1692         } else {
1693                 auth_type = sme->auth_type;
1694         }
1695
1696         if (sme->crypto.n_ciphers_pairwise) {
1697                 priv->sec_info.encryption_mode =
1698                                                 sme->crypto.ciphers_pairwise[0];
1699                 priv->sec_info.authentication_mode = auth_type;
1700         }
1701
1702         if (sme->crypto.cipher_group) {
1703                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1704                 priv->sec_info.authentication_mode = auth_type;
1705         }
1706         if (sme->ie)
1707                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1708
1709         if (sme->key) {
1710                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1711                         dev_dbg(priv->adapter->dev,
1712                                 "info: setting wep encryption"
1713                                 " with key len %d\n", sme->key_len);
1714                         priv->wep_key_curr_index = sme->key_idx;
1715                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1716                                                  sme->key_len, sme->key_idx,
1717                                                  NULL, 0);
1718                 }
1719         }
1720 done:
1721         /*
1722          * Scan entries are valid for some time (15 sec). So we can save one
1723          * active scan time if we just try cfg80211_get_bss first. If it fails
1724          * then request scan and cfg80211_get_bss() again for final output.
1725          */
1726         while (1) {
1727                 if (is_scanning_required) {
1728                         /* Do specific SSID scanning */
1729                         if (mwifiex_request_scan(priv, &req_ssid)) {
1730                                 dev_err(priv->adapter->dev, "scan error\n");
1731                                 return -EFAULT;
1732                         }
1733                 }
1734
1735                 /* Find the BSS we want using available scan results */
1736                 if (mode == NL80211_IFTYPE_ADHOC)
1737                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1738                                                bssid, ssid, ssid_len,
1739                                                WLAN_CAPABILITY_IBSS,
1740                                                WLAN_CAPABILITY_IBSS);
1741                 else
1742                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1743                                                bssid, ssid, ssid_len,
1744                                                WLAN_CAPABILITY_ESS,
1745                                                WLAN_CAPABILITY_ESS);
1746
1747                 if (!bss) {
1748                         if (is_scanning_required) {
1749                                 dev_warn(priv->adapter->dev,
1750                                          "assoc: requested bss not found in scan results\n");
1751                                 break;
1752                         }
1753                         is_scanning_required = 1;
1754                 } else {
1755                         dev_dbg(priv->adapter->dev,
1756                                 "info: trying to associate to '%s' bssid %pM\n",
1757                                 (char *) req_ssid.ssid, bss->bssid);
1758                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1759                         break;
1760                 }
1761         }
1762
1763         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1764         if (ret)
1765                 return ret;
1766
1767         if (mode == NL80211_IFTYPE_ADHOC) {
1768                 /* Inform the BSS information to kernel, otherwise
1769                  * kernel will give a panic after successful assoc */
1770                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1771                         return -EFAULT;
1772         }
1773
1774         return ret;
1775 }
1776
1777 /*
1778  * CFG802.11 operation handler for association request.
1779  *
1780  * This function does not work when the current mode is set to Ad-Hoc, or
1781  * when there is already an association procedure going on. The given BSS
1782  * information is used to associate.
1783  */
1784 static int
1785 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1786                          struct cfg80211_connect_params *sme)
1787 {
1788         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1789         int ret;
1790
1791         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1792                 wiphy_err(wiphy,
1793                           "%s: reject infra assoc request in non-STA role\n",
1794                           dev->name);
1795                 return -EINVAL;
1796         }
1797
1798         if (priv->wdev && priv->wdev->current_bss) {
1799                 wiphy_warn(wiphy, "%s: already connected\n", dev->name);
1800                 return -EALREADY;
1801         }
1802
1803         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1804                   (char *) sme->ssid, sme->bssid);
1805
1806         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1807                                      priv->bss_mode, sme->channel, sme, 0);
1808         if (!ret) {
1809                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1810                                         NULL, 0, WLAN_STATUS_SUCCESS,
1811                                         GFP_KERNEL);
1812                 dev_dbg(priv->adapter->dev,
1813                         "info: associated to bssid %pM successfully\n",
1814                         priv->cfg_bssid);
1815                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
1816                     priv->adapter->auto_tdls &&
1817                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
1818                         mwifiex_setup_auto_tdls_timer(priv);
1819         } else {
1820                 dev_dbg(priv->adapter->dev,
1821                         "info: association to bssid %pM failed\n",
1822                         priv->cfg_bssid);
1823                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1824
1825                 if (ret > 0)
1826                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1827                                                 NULL, 0, NULL, 0, ret,
1828                                                 GFP_KERNEL);
1829                 else
1830                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1831                                                 NULL, 0, NULL, 0,
1832                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1833                                                 GFP_KERNEL);
1834         }
1835
1836         return 0;
1837 }
1838
1839 /*
1840  * This function sets following parameters for ibss network.
1841  *  -  channel
1842  *  -  start band
1843  *  -  11n flag
1844  *  -  secondary channel offset
1845  */
1846 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1847                                    struct cfg80211_ibss_params *params)
1848 {
1849         struct wiphy *wiphy = priv->wdev->wiphy;
1850         struct mwifiex_adapter *adapter = priv->adapter;
1851         int index = 0, i;
1852         u8 config_bands = 0;
1853
1854         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1855                 if (!params->basic_rates) {
1856                         config_bands = BAND_B | BAND_G;
1857                 } else {
1858                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1859                                 /*
1860                                  * Rates below 6 Mbps in the table are CCK
1861                                  * rates; 802.11b and from 6 they are OFDM;
1862                                  * 802.11G
1863                                  */
1864                                 if (mwifiex_rates[i].bitrate == 60) {
1865                                         index = 1 << i;
1866                                         break;
1867                                 }
1868                         }
1869
1870                         if (params->basic_rates < index) {
1871                                 config_bands = BAND_B;
1872                         } else {
1873                                 config_bands = BAND_G;
1874                                 if (params->basic_rates % index)
1875                                         config_bands |= BAND_B;
1876                         }
1877                 }
1878
1879                 if (cfg80211_get_chandef_type(&params->chandef) !=
1880                                                 NL80211_CHAN_NO_HT)
1881                         config_bands |= BAND_G | BAND_GN;
1882         } else {
1883                 if (cfg80211_get_chandef_type(&params->chandef) ==
1884                                                 NL80211_CHAN_NO_HT)
1885                         config_bands = BAND_A;
1886                 else
1887                         config_bands = BAND_AN | BAND_A;
1888         }
1889
1890         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1891                 adapter->config_bands = config_bands;
1892                 adapter->adhoc_start_band = config_bands;
1893
1894                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1895                         adapter->adhoc_11n_enabled = true;
1896                 else
1897                         adapter->adhoc_11n_enabled = false;
1898         }
1899
1900         adapter->sec_chan_offset =
1901                 mwifiex_chan_type_to_sec_chan_offset(
1902                         cfg80211_get_chandef_type(&params->chandef));
1903         priv->adhoc_channel = ieee80211_frequency_to_channel(
1904                                 params->chandef.chan->center_freq);
1905
1906         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1907                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1908
1909         return 0;
1910 }
1911
1912 /*
1913  * CFG802.11 operation handler to join an IBSS.
1914  *
1915  * This function does not work in any mode other than Ad-Hoc, or if
1916  * a join operation is already in progress.
1917  */
1918 static int
1919 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1920                            struct cfg80211_ibss_params *params)
1921 {
1922         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1923         int ret = 0;
1924
1925         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1926                 wiphy_err(wiphy, "request to join ibss received "
1927                                 "when station is not in ibss mode\n");
1928                 goto done;
1929         }
1930
1931         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1932                   (char *) params->ssid, params->bssid);
1933
1934         mwifiex_set_ibss_params(priv, params);
1935
1936         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1937                                      params->bssid, priv->bss_mode,
1938                                      params->chandef.chan, NULL,
1939                                      params->privacy);
1940 done:
1941         if (!ret) {
1942                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1943                                      params->chandef.chan, GFP_KERNEL);
1944                 dev_dbg(priv->adapter->dev,
1945                         "info: joined/created adhoc network with bssid"
1946                         " %pM successfully\n", priv->cfg_bssid);
1947         } else {
1948                 dev_dbg(priv->adapter->dev,
1949                         "info: failed creating/joining adhoc network\n");
1950         }
1951
1952         return ret;
1953 }
1954
1955 /*
1956  * CFG802.11 operation handler to leave an IBSS.
1957  *
1958  * This function does not work if a leave operation is
1959  * already in progress.
1960  */
1961 static int
1962 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1963 {
1964         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1965
1966         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1967                   priv->cfg_bssid);
1968         if (mwifiex_deauthenticate(priv, NULL))
1969                 return -EFAULT;
1970
1971         memset(priv->cfg_bssid, 0, ETH_ALEN);
1972
1973         return 0;
1974 }
1975
1976 /*
1977  * CFG802.11 operation handler for scan request.
1978  *
1979  * This function issues a scan request to the firmware based upon
1980  * the user specified scan configuration. On successfull completion,
1981  * it also informs the results.
1982  */
1983 static int
1984 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1985                       struct cfg80211_scan_request *request)
1986 {
1987         struct net_device *dev = request->wdev->netdev;
1988         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1989         int i, offset, ret;
1990         struct ieee80211_channel *chan;
1991         struct ieee_types_header *ie;
1992         struct mwifiex_user_scan_cfg *user_scan_cfg;
1993
1994         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1995
1996         /* Block scan request if scan operation or scan cleanup when interface
1997          * is disabled is in process
1998          */
1999         if (priv->scan_request || priv->scan_aborting) {
2000                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
2001                 return -EBUSY;
2002         }
2003
2004         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2005         if (!user_scan_cfg)
2006                 return -ENOMEM;
2007
2008         priv->scan_request = request;
2009
2010         user_scan_cfg->num_ssids = request->n_ssids;
2011         user_scan_cfg->ssid_list = request->ssids;
2012
2013         if (request->ie && request->ie_len) {
2014                 offset = 0;
2015                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2016                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2017                                 continue;
2018                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2019                         ie = (struct ieee_types_header *)(request->ie + offset);
2020                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2021                         offset += sizeof(*ie) + ie->len;
2022
2023                         if (offset >= request->ie_len)
2024                                 break;
2025                 }
2026         }
2027
2028         for (i = 0; i < min_t(u32, request->n_channels,
2029                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2030                 chan = request->channels[i];
2031                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2032                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2033
2034                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2035                         user_scan_cfg->chan_list[i].scan_type =
2036                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2037                 else
2038                         user_scan_cfg->chan_list[i].scan_type =
2039                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2040
2041                 user_scan_cfg->chan_list[i].scan_time = 0;
2042         }
2043
2044         if (priv->adapter->scan_chan_gap_enabled &&
2045             mwifiex_is_any_intf_active(priv))
2046                 user_scan_cfg->scan_chan_gap =
2047                                               priv->adapter->scan_chan_gap_time;
2048
2049         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2050         kfree(user_scan_cfg);
2051         if (ret) {
2052                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2053                 priv->scan_aborting = false;
2054                 priv->scan_request = NULL;
2055                 return ret;
2056         }
2057
2058         if (request->ie && request->ie_len) {
2059                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2060                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2061                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2062                                 memset(&priv->vs_ie[i].ie, 0,
2063                                        MWIFIEX_MAX_VSIE_LEN);
2064                         }
2065                 }
2066         }
2067         return 0;
2068 }
2069
2070 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2071                                    struct mwifiex_private *priv)
2072 {
2073         struct mwifiex_adapter *adapter = priv->adapter;
2074
2075         vht_info->vht_supported = true;
2076
2077         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2078         /* Update MCS support for VHT */
2079         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2080                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2081         vht_info->vht_mcs.rx_highest = 0;
2082         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2083                                 adapter->hw_dot_11ac_mcs_support >> 16);
2084         vht_info->vht_mcs.tx_highest = 0;
2085 }
2086
2087 /*
2088  * This function sets up the CFG802.11 specific HT capability fields
2089  * with default values.
2090  *
2091  * The following default values are set -
2092  *      - HT Supported = True
2093  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2094  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2095  *      - HT Capabilities supported by firmware
2096  *      - MCS information, Rx mask = 0xff
2097  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2098  */
2099 static void
2100 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2101                       struct mwifiex_private *priv)
2102 {
2103         int rx_mcs_supp;
2104         struct ieee80211_mcs_info mcs_set;
2105         u8 *mcs = (u8 *)&mcs_set;
2106         struct mwifiex_adapter *adapter = priv->adapter;
2107
2108         ht_info->ht_supported = true;
2109         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2110         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2111
2112         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2113
2114         /* Fill HT capability information */
2115         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2116                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2117         else
2118                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2119
2120         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2121                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2122         else
2123                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2124
2125         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2126                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2127         else
2128                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2129
2130         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2131                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2132         else
2133                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2134
2135         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2136                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2137         else
2138                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2139
2140         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2141                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2142         else
2143                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2144
2145         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2146                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2147         else
2148                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2149
2150         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2151                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2152         else
2153                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2154
2155         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2156         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2157
2158         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2159         /* Set MCS for 1x1/2x2 */
2160         memset(mcs, 0xff, rx_mcs_supp);
2161         /* Clear all the other values */
2162         memset(&mcs[rx_mcs_supp], 0,
2163                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2164         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2165             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2166                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2167                 SETHT_MCS32(mcs_set.rx_mask);
2168
2169         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2170
2171         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2172 }
2173
2174 /*
2175  *  create a new virtual interface with the given name
2176  */
2177 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2178                                               const char *name,
2179                                               enum nl80211_iftype type,
2180                                               u32 *flags,
2181                                               struct vif_params *params)
2182 {
2183         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2184         struct mwifiex_private *priv;
2185         struct net_device *dev;
2186         void *mdev_priv;
2187         struct wireless_dev *wdev;
2188
2189         if (!adapter)
2190                 return ERR_PTR(-EFAULT);
2191
2192         switch (type) {
2193         case NL80211_IFTYPE_UNSPECIFIED:
2194         case NL80211_IFTYPE_STATION:
2195         case NL80211_IFTYPE_ADHOC:
2196                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2197                 if (priv->bss_mode) {
2198                         wiphy_err(wiphy,
2199                                   "cannot create multiple sta/adhoc ifaces\n");
2200                         return ERR_PTR(-EINVAL);
2201                 }
2202
2203                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2204                 if (!wdev)
2205                         return ERR_PTR(-ENOMEM);
2206
2207                 wdev->wiphy = wiphy;
2208                 priv->wdev = wdev;
2209                 wdev->iftype = NL80211_IFTYPE_STATION;
2210
2211                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2212                         priv->bss_mode = NL80211_IFTYPE_STATION;
2213                 else
2214                         priv->bss_mode = type;
2215
2216                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2217                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2218                 priv->bss_priority = 0;
2219                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2220                 priv->bss_num = 0;
2221
2222                 break;
2223         case NL80211_IFTYPE_AP:
2224                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2225
2226                 if (priv->bss_mode) {
2227                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2228                         return ERR_PTR(-EINVAL);
2229                 }
2230
2231                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2232                 if (!wdev)
2233                         return ERR_PTR(-ENOMEM);
2234
2235                 priv->wdev = wdev;
2236                 wdev->wiphy = wiphy;
2237                 wdev->iftype = NL80211_IFTYPE_AP;
2238
2239                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2240                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2241                 priv->bss_priority = 0;
2242                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2243                 priv->bss_started = 0;
2244                 priv->bss_num = 0;
2245                 priv->bss_mode = type;
2246
2247                 break;
2248         case NL80211_IFTYPE_P2P_CLIENT:
2249                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2250
2251                 if (priv->bss_mode) {
2252                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2253                         return ERR_PTR(-EINVAL);
2254                 }
2255
2256                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2257                 if (!wdev)
2258                         return ERR_PTR(-ENOMEM);
2259
2260                 priv->wdev = wdev;
2261                 wdev->wiphy = wiphy;
2262
2263                 /* At start-up, wpa_supplicant tries to change the interface
2264                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2265                  */
2266                 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2267                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2268
2269                 /* Setting bss_type to P2P tells firmware that this interface
2270                  * is receiving P2P peers found during find phase and doing
2271                  * action frame handshake.
2272                  */
2273                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2274
2275                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2276                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2277                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2278                 priv->bss_started = 0;
2279                 priv->bss_num = 0;
2280
2281                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2282                         wdev = ERR_PTR(-EFAULT);
2283                         goto done;
2284                 }
2285
2286                 break;
2287         default:
2288                 wiphy_err(wiphy, "type not supported\n");
2289                 return ERR_PTR(-EINVAL);
2290         }
2291
2292         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2293                                NET_NAME_UNKNOWN, ether_setup,
2294                                IEEE80211_NUM_ACS, 1);
2295         if (!dev) {
2296                 wiphy_err(wiphy, "no memory available for netdevice\n");
2297                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2298                 wdev = ERR_PTR(-ENOMEM);
2299                 goto done;
2300         }
2301
2302         mwifiex_init_priv_params(priv, dev);
2303         priv->netdev = dev;
2304
2305         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2306         if (adapter->is_hw_11ac_capable)
2307                 mwifiex_setup_vht_caps(
2308                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2309
2310         if (adapter->config_bands & BAND_A)
2311                 mwifiex_setup_ht_caps(
2312                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2313
2314         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2315                 mwifiex_setup_vht_caps(
2316                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2317
2318         dev_net_set(dev, wiphy_net(wiphy));
2319         dev->ieee80211_ptr = priv->wdev;
2320         dev->ieee80211_ptr->iftype = priv->bss_mode;
2321         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2322         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2323
2324         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2325         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2326         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2327         dev->ethtool_ops = &mwifiex_ethtool_ops;
2328
2329         mdev_priv = netdev_priv(dev);
2330         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2331
2332         SET_NETDEV_DEV(dev, adapter->dev);
2333
2334         /* Register network device */
2335         if (register_netdevice(dev)) {
2336                 wiphy_err(wiphy, "cannot register virtual network device\n");
2337                 free_netdev(dev);
2338                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2339                 priv->netdev = NULL;
2340                 wdev = ERR_PTR(-EFAULT);
2341                 goto done;
2342         }
2343
2344         sema_init(&priv->async_sem, 1);
2345
2346         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2347
2348 #ifdef CONFIG_DEBUG_FS
2349         mwifiex_dev_debugfs_init(priv);
2350 #endif
2351
2352 done:
2353         if (IS_ERR(wdev)) {
2354                 kfree(priv->wdev);
2355                 priv->wdev = NULL;
2356         }
2357
2358         return wdev;
2359 }
2360 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2361
2362 /*
2363  * del_virtual_intf: remove the virtual interface determined by dev
2364  */
2365 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2366 {
2367         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2368
2369 #ifdef CONFIG_DEBUG_FS
2370         mwifiex_dev_debugfs_remove(priv);
2371 #endif
2372
2373         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2374
2375         if (netif_carrier_ok(priv->netdev))
2376                 netif_carrier_off(priv->netdev);
2377
2378         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2379                 unregister_netdevice(wdev->netdev);
2380
2381         /* Clear the priv in adapter */
2382         priv->netdev->ieee80211_ptr = NULL;
2383         priv->netdev = NULL;
2384         kfree(wdev);
2385         priv->wdev = NULL;
2386
2387         priv->media_connected = false;
2388
2389         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2390
2391         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2392             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2393                 kfree(priv->hist_data);
2394
2395         return 0;
2396 }
2397 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2398
2399 static bool
2400 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2401                              u8 max_byte_seq)
2402 {
2403         int j, k, valid_byte_cnt = 0;
2404         bool dont_care_byte = false;
2405
2406         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2407                 for (k = 0; k < 8; k++) {
2408                         if (pat->mask[j] & 1 << k) {
2409                                 memcpy(byte_seq + valid_byte_cnt,
2410                                        &pat->pattern[j * 8 + k], 1);
2411                                 valid_byte_cnt++;
2412                                 if (dont_care_byte)
2413                                         return false;
2414                         } else {
2415                                 if (valid_byte_cnt)
2416                                         dont_care_byte = true;
2417                         }
2418
2419                         if (valid_byte_cnt > max_byte_seq)
2420                                 return false;
2421                 }
2422         }
2423
2424         byte_seq[max_byte_seq] = valid_byte_cnt;
2425
2426         return true;
2427 }
2428
2429 #ifdef CONFIG_PM
2430 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
2431                                   struct cfg80211_wowlan *wowlan)
2432 {
2433         int i, filt_num = 0, ret = 0;
2434         bool first_pat = true;
2435         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2436         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2437         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2438         struct mwifiex_ds_mef_cfg mef_cfg;
2439         struct mwifiex_mef_entry *mef_entry;
2440
2441         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2442         if (!mef_entry)
2443                 return -ENOMEM;
2444
2445         memset(&mef_cfg, 0, sizeof(mef_cfg));
2446         mef_cfg.num_entries = 1;
2447         mef_cfg.mef_entry = mef_entry;
2448         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2449         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2450
2451         for (i = 0; i < wowlan->n_patterns; i++) {
2452                 memset(byte_seq, 0, sizeof(byte_seq));
2453                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2454                                         byte_seq,
2455                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
2456                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2457                         kfree(mef_entry);
2458                         return -EOPNOTSUPP;
2459                 }
2460
2461                 if (!wowlan->patterns[i].pkt_offset) {
2462                         if (!(byte_seq[0] & 0x01) &&
2463                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2464                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2465                                 continue;
2466                         } else if (is_broadcast_ether_addr(byte_seq)) {
2467                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2468                                 continue;
2469                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2470                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2471                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2472                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2473                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2474                                 continue;
2475                         }
2476                 }
2477
2478                 mef_entry->filter[filt_num].repeat = 1;
2479                 mef_entry->filter[filt_num].offset =
2480                         wowlan->patterns[i].pkt_offset;
2481                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2482                                 sizeof(byte_seq));
2483                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2484
2485                 if (first_pat)
2486                         first_pat = false;
2487                 else
2488                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2489
2490                 filt_num++;
2491         }
2492
2493         if (wowlan->magic_pkt) {
2494                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2495                 mef_entry->filter[filt_num].repeat = 16;
2496                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2497                                 ETH_ALEN);
2498                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2499                         ETH_ALEN;
2500                 mef_entry->filter[filt_num].offset = 28;
2501                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2502                 if (filt_num)
2503                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2504
2505                 filt_num++;
2506                 mef_entry->filter[filt_num].repeat = 16;
2507                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2508                                 ETH_ALEN);
2509                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2510                         ETH_ALEN;
2511                 mef_entry->filter[filt_num].offset = 56;
2512                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2513                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2514         }
2515
2516         if (!mef_cfg.criteria)
2517                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2518                         MWIFIEX_CRITERIA_UNICAST |
2519                         MWIFIEX_CRITERIA_MULTICAST;
2520
2521         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2522                         HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2523
2524         kfree(mef_entry);
2525         return ret;
2526 }
2527
2528 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2529                                     struct cfg80211_wowlan *wowlan)
2530 {
2531         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2532         struct mwifiex_ds_hs_cfg hs_cfg;
2533         int ret = 0;
2534         struct mwifiex_private *priv =
2535                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2536
2537         if (!wowlan) {
2538                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2539                 return 0;
2540         }
2541
2542         if (!priv->media_connected) {
2543                 dev_warn(adapter->dev,
2544                          "Can not configure WOWLAN in disconnected state\n");
2545                 return 0;
2546         }
2547
2548         if (wowlan->n_patterns || wowlan->magic_pkt) {
2549                 ret = mwifiex_set_mef_filter(priv, wowlan);
2550                 if (ret) {
2551                         dev_err(adapter->dev, "Failed to set MEF filter\n");
2552                         return ret;
2553                 }
2554         }
2555
2556         if (wowlan->disconnect) {
2557                 memset(&hs_cfg, 0, sizeof(hs_cfg));
2558                 hs_cfg.is_invoke_hostcmd = false;
2559                 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
2560                 hs_cfg.gpio = HS_CFG_GPIO_DEF;
2561                 hs_cfg.gap = HS_CFG_GAP_DEF;
2562                 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
2563                                             MWIFIEX_SYNC_CMD, &hs_cfg);
2564                 if (ret) {
2565                         dev_err(adapter->dev, "Failed to set HS params\n");
2566                         return ret;
2567                 }
2568         }
2569
2570         return ret;
2571 }
2572
2573 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2574 {
2575         return 0;
2576 }
2577
2578 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2579                                        bool enabled)
2580 {
2581         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2582
2583         device_set_wakeup_enable(adapter->dev, enabled);
2584 }
2585 #endif
2586
2587 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2588 {
2589         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2590         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2591         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2592
2593         if ((byte_seq[0] & 0x01) &&
2594             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2595                 return PACKET_TYPE_UNICAST;
2596         else if (!memcmp(byte_seq, bc_mac, 4))
2597                 return PACKET_TYPE_BROADCAST;
2598         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2599                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2600                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2601                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2602                 return PACKET_TYPE_MULTICAST;
2603
2604         return 0;
2605 }
2606
2607 static int
2608 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2609                                 struct cfg80211_coalesce_rules *crule,
2610                                 struct mwifiex_coalesce_rule *mrule)
2611 {
2612         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2613         struct filt_field_param *param;
2614         int i;
2615
2616         mrule->max_coalescing_delay = crule->delay;
2617
2618         param = mrule->params;
2619
2620         for (i = 0; i < crule->n_patterns; i++) {
2621                 memset(byte_seq, 0, sizeof(byte_seq));
2622                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2623                                                   byte_seq,
2624                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2625                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2626                         return -EOPNOTSUPP;
2627                 }
2628
2629                 if (!crule->patterns[i].pkt_offset) {
2630                         u8 pkt_type;
2631
2632                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2633                         if (pkt_type && mrule->pkt_type) {
2634                                 dev_err(priv->adapter->dev,
2635                                         "Multiple packet types not allowed\n");
2636                                 return -EOPNOTSUPP;
2637                         } else if (pkt_type) {
2638                                 mrule->pkt_type = pkt_type;
2639                                 continue;
2640                         }
2641                 }
2642
2643                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2644                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2645                 else
2646                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
2647
2648                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2649                 memcpy(param->operand_byte_stream, byte_seq,
2650                        param->operand_len);
2651                 param->offset = crule->patterns[i].pkt_offset;
2652                 param++;
2653
2654                 mrule->num_of_fields++;
2655         }
2656
2657         if (!mrule->pkt_type) {
2658                 dev_err(priv->adapter->dev,
2659                         "Packet type can not be determined\n");
2660                 return -EOPNOTSUPP;
2661         }
2662
2663         return 0;
2664 }
2665
2666 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2667                                          struct cfg80211_coalesce *coalesce)
2668 {
2669         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2670         int i, ret;
2671         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2672         struct mwifiex_private *priv =
2673                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2674
2675         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2676         if (!coalesce) {
2677                 dev_dbg(adapter->dev,
2678                         "Disable coalesce and reset all previous rules\n");
2679                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2680                                         HostCmd_ACT_GEN_SET, 0,
2681                                         &coalesce_cfg, true);
2682         }
2683
2684         coalesce_cfg.num_of_rules = coalesce->n_rules;
2685         for (i = 0; i < coalesce->n_rules; i++) {
2686                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2687                                                       &coalesce_cfg.rule[i]);
2688                 if (ret) {
2689                         dev_err(priv->adapter->dev,
2690                                 "Recheck the patterns provided for rule %d\n",
2691                                 i + 1);
2692                         return ret;
2693                 }
2694         }
2695
2696         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2697                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2698 }
2699
2700 /* cfg80211 ops handler for tdls_mgmt.
2701  * Function prepares TDLS action frame packets and forwards them to FW
2702  */
2703 static int
2704 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2705                            const u8 *peer, u8 action_code, u8 dialog_token,
2706                            u16 status_code, u32 peer_capability,
2707                            bool initiator, const u8 *extra_ies,
2708                            size_t extra_ies_len)
2709 {
2710         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2711         int ret;
2712
2713         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2714                 return -ENOTSUPP;
2715
2716         /* make sure we are in station mode and connected */
2717         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2718                 return -ENOTSUPP;
2719
2720         switch (action_code) {
2721         case WLAN_TDLS_SETUP_REQUEST:
2722                 dev_dbg(priv->adapter->dev,
2723                         "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2724                          status_code);
2725                 mwifiex_add_auto_tdls_peer(priv, peer);
2726                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2727                                                    dialog_token, status_code,
2728                                                    extra_ies, extra_ies_len);
2729                 break;
2730         case WLAN_TDLS_SETUP_RESPONSE:
2731                 mwifiex_add_auto_tdls_peer(priv, peer);
2732                 dev_dbg(priv->adapter->dev,
2733                         "Send TDLS Setup Response to %pM status_code=%d\n",
2734                         peer, status_code);
2735                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2736                                                    dialog_token, status_code,
2737                                                    extra_ies, extra_ies_len);
2738                 break;
2739         case WLAN_TDLS_SETUP_CONFIRM:
2740                 dev_dbg(priv->adapter->dev,
2741                         "Send TDLS Confirm to %pM status_code=%d\n", peer,
2742                         status_code);
2743                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2744                                                    dialog_token, status_code,
2745                                                    extra_ies, extra_ies_len);
2746                 break;
2747         case WLAN_TDLS_TEARDOWN:
2748                 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2749                         peer);
2750                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2751                                                    dialog_token, status_code,
2752                                                    extra_ies, extra_ies_len);
2753                 break;
2754         case WLAN_TDLS_DISCOVERY_REQUEST:
2755                 dev_dbg(priv->adapter->dev,
2756                         "Send TDLS Discovery Request to %pM\n", peer);
2757                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2758                                                    dialog_token, status_code,
2759                                                    extra_ies, extra_ies_len);
2760                 break;
2761         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2762                 dev_dbg(priv->adapter->dev,
2763                         "Send TDLS Discovery Response to %pM\n", peer);
2764                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2765                                                    dialog_token, status_code,
2766                                                    extra_ies, extra_ies_len);
2767                 break;
2768         default:
2769                 dev_warn(priv->adapter->dev,
2770                          "Unknown TDLS mgmt/action frame %pM\n", peer);
2771                 ret = -EINVAL;
2772                 break;
2773         }
2774
2775         return ret;
2776 }
2777
2778 static int
2779 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2780                            const u8 *peer, enum nl80211_tdls_operation action)
2781 {
2782         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2783
2784         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2785             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2786                 return -ENOTSUPP;
2787
2788         /* make sure we are in station mode and connected */
2789         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2790                 return -ENOTSUPP;
2791
2792         dev_dbg(priv->adapter->dev,
2793                 "TDLS peer=%pM, oper=%d\n", peer, action);
2794
2795         switch (action) {
2796         case NL80211_TDLS_ENABLE_LINK:
2797                 action = MWIFIEX_TDLS_ENABLE_LINK;
2798                 break;
2799         case NL80211_TDLS_DISABLE_LINK:
2800                 action = MWIFIEX_TDLS_DISABLE_LINK;
2801                 break;
2802         case NL80211_TDLS_TEARDOWN:
2803                 /* shouldn't happen!*/
2804                 dev_warn(priv->adapter->dev,
2805                          "tdls_oper: teardown from driver not supported\n");
2806                 return -EINVAL;
2807         case NL80211_TDLS_SETUP:
2808                 /* shouldn't happen!*/
2809                 dev_warn(priv->adapter->dev,
2810                          "tdls_oper: setup from driver not supported\n");
2811                 return -EINVAL;
2812         case NL80211_TDLS_DISCOVERY_REQ:
2813                 /* shouldn't happen!*/
2814                 dev_warn(priv->adapter->dev,
2815                          "tdls_oper: discovery from driver not supported\n");
2816                 return -EINVAL;
2817         default:
2818                 dev_err(priv->adapter->dev,
2819                         "tdls_oper: operation not supported\n");
2820                 return -ENOTSUPP;
2821         }
2822
2823         return mwifiex_tdls_oper(priv, peer, action);
2824 }
2825
2826 static int
2827 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2828                              const u8 *mac, struct station_parameters *params)
2829 {
2830         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2831
2832         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2833                 return -ENOTSUPP;
2834
2835         /* make sure we are in station mode and connected */
2836         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2837                 return -ENOTSUPP;
2838
2839         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2840 }
2841
2842 static int
2843 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2844                                 const u8 *mac,
2845                                 struct station_parameters *params)
2846 {
2847         int ret;
2848         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2849
2850         /* we support change_station handler only for TDLS peers*/
2851         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2852                 return -ENOTSUPP;
2853
2854         /* make sure we are in station mode and connected */
2855         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2856                 return -ENOTSUPP;
2857
2858         priv->sta_params = params;
2859
2860         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2861         priv->sta_params = NULL;
2862
2863         return ret;
2864 }
2865
2866 /* station cfg80211 operations */
2867 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2868         .add_virtual_intf = mwifiex_add_virtual_intf,
2869         .del_virtual_intf = mwifiex_del_virtual_intf,
2870         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2871         .scan = mwifiex_cfg80211_scan,
2872         .connect = mwifiex_cfg80211_connect,
2873         .disconnect = mwifiex_cfg80211_disconnect,
2874         .get_station = mwifiex_cfg80211_get_station,
2875         .dump_station = mwifiex_cfg80211_dump_station,
2876         .dump_survey = mwifiex_cfg80211_dump_survey,
2877         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2878         .join_ibss = mwifiex_cfg80211_join_ibss,
2879         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2880         .add_key = mwifiex_cfg80211_add_key,
2881         .del_key = mwifiex_cfg80211_del_key,
2882         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2883         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2884         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2885         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2886         .set_default_key = mwifiex_cfg80211_set_default_key,
2887         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2888         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2889         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2890         .start_ap = mwifiex_cfg80211_start_ap,
2891         .stop_ap = mwifiex_cfg80211_stop_ap,
2892         .change_beacon = mwifiex_cfg80211_change_beacon,
2893         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2894         .set_antenna = mwifiex_cfg80211_set_antenna,
2895         .del_station = mwifiex_cfg80211_del_station,
2896 #ifdef CONFIG_PM
2897         .suspend = mwifiex_cfg80211_suspend,
2898         .resume = mwifiex_cfg80211_resume,
2899         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2900 #endif
2901         .set_coalesce = mwifiex_cfg80211_set_coalesce,
2902         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2903         .tdls_oper = mwifiex_cfg80211_tdls_oper,
2904         .add_station = mwifiex_cfg80211_add_station,
2905         .change_station = mwifiex_cfg80211_change_station,
2906 };
2907
2908 #ifdef CONFIG_PM
2909 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2910         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
2911         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2912         .pattern_min_len = 1,
2913         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2914         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2915 };
2916 #endif
2917
2918 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2919 {
2920         if (!alpha2 || strlen(alpha2) != 2)
2921                 return false;
2922
2923         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2924                 return true;
2925
2926         return false;
2927 }
2928
2929 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2930         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2931         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2932         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2933         .pattern_min_len = 1,
2934         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2935         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2936 };
2937
2938 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
2939 {
2940         u32 n_channels_bg, n_channels_a = 0;
2941
2942         n_channels_bg = mwifiex_band_2ghz.n_channels;
2943
2944         if (adapter->config_bands & BAND_A)
2945                 n_channels_a = mwifiex_band_5ghz.n_channels;
2946
2947         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
2948         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
2949                                       adapter->num_in_chan_stats);
2950
2951         if (!adapter->chan_stats)
2952                 return -ENOMEM;
2953
2954         return 0;
2955 }
2956
2957 /*
2958  * This function registers the device with CFG802.11 subsystem.
2959  *
2960  * The function creates the wireless device/wiphy, populates it with
2961  * default parameters and handler function pointers, and finally
2962  * registers the device.
2963  */
2964
2965 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2966 {
2967         int ret;
2968         void *wdev_priv;
2969         struct wiphy *wiphy;
2970         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2971         u8 *country_code;
2972         u32 thr, retry;
2973
2974         /* create a new wiphy for use with cfg80211 */
2975         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2976                           sizeof(struct mwifiex_adapter *));
2977         if (!wiphy) {
2978                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2979                 return -ENOMEM;
2980         }
2981         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2982         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2983         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2984         wiphy->max_remain_on_channel_duration = 5000;
2985         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2986                                  BIT(NL80211_IFTYPE_ADHOC) |
2987                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2988                                  BIT(NL80211_IFTYPE_P2P_GO) |
2989                                  BIT(NL80211_IFTYPE_AP);
2990
2991         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2992         if (adapter->config_bands & BAND_A)
2993                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2994         else
2995                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2996
2997         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2998         wiphy->n_iface_combinations = 1;
2999
3000         /* Initialize cipher suits */
3001         wiphy->cipher_suites = mwifiex_cipher_suites;
3002         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3003
3004         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
3005         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3006         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3007                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3008                         WIPHY_FLAG_AP_UAPSD |
3009                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
3010
3011         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3012                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3013                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3014
3015 #ifdef CONFIG_PM
3016         wiphy->wowlan = &mwifiex_wowlan_support;
3017 #endif
3018
3019         wiphy->coalesce = &mwifiex_coalesce_support;
3020
3021         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3022                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3023                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3024
3025         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3026         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3027
3028         wiphy->features |= NL80211_FEATURE_HT_IBSS |
3029                            NL80211_FEATURE_INACTIVITY_TIMER |
3030                            NL80211_FEATURE_NEED_OBSS_SCAN;
3031
3032         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3033                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3034
3035         /* Reserve space for mwifiex specific private data for BSS */
3036         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3037
3038         wiphy->reg_notifier = mwifiex_reg_notifier;
3039
3040         /* Set struct mwifiex_adapter pointer in wiphy_priv */
3041         wdev_priv = wiphy_priv(wiphy);
3042         *(unsigned long *)wdev_priv = (unsigned long)adapter;
3043
3044         set_wiphy_dev(wiphy, priv->adapter->dev);
3045
3046         ret = wiphy_register(wiphy);
3047         if (ret < 0) {
3048                 dev_err(adapter->dev,
3049                         "%s: wiphy_register failed: %d\n", __func__, ret);
3050                 wiphy_free(wiphy);
3051                 return ret;
3052         }
3053
3054         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3055                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
3056                 regulatory_hint(wiphy, reg_alpha2);
3057         } else {
3058                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3059                 if (country_code)
3060                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
3061                                    country_code);
3062         }
3063
3064         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3065                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3066         wiphy->frag_threshold = thr;
3067         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3068                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3069         wiphy->rts_threshold = thr;
3070         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3071                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3072         wiphy->retry_short = (u8) retry;
3073         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3074                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3075         wiphy->retry_long = (u8) retry;
3076
3077         adapter->wiphy = wiphy;
3078         return ret;
3079 }