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;
 594
 595         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 596
 597         switch (priv->bss_role) {
 598         case MWIFIEX_BSS_ROLE_UAP:
 599                 if (priv->bss_started) {
 600                         dev_err(adapter->dev,
 601                                 "cannot change wiphy params when bss started");
 602                         return -EINVAL;
 603                 }
 604
 605                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 606                 if (!bss_cfg)
 607                         return -ENOMEM;
 608
 609                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 610
 611                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 612                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 613                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 614                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 615                 if (changed & WIPHY_PARAM_RETRY_LONG)
 616                         bss_cfg->retry_limit = wiphy->retry_long;
 617
 618                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 619                                        HostCmd_ACT_GEN_SET,
 620                                        UAP_BSS_PARAMS_I, bss_cfg,
 621                                        false);
 622
 623                 kfree(bss_cfg);
 624                 if (ret) {
 625                         wiphy_err(wiphy, "Failed to set wiphy phy params\n");
 626                         return ret;
 627                 }
 628                 break;
 629
 630                 case MWIFIEX_BSS_ROLE_STA:
 631                 if (priv->media_connected) {
 632                         dev_err(adapter->dev,
 633                                 "cannot change wiphy params when connected");
 634                         return -EINVAL;
 635                 }
 636                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 637                         ret = mwifiex_set_rts(priv,
 638                                               wiphy->rts_threshold);
 639                         if (ret)
 640                                 return ret;
 641                 }
 642                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 643                         ret = mwifiex_set_frag(priv,
 644                                                wiphy->frag_threshold);
 645                         if (ret)
 646                                 return ret;
 647                 }
 648                 break;
 649         }
 650
 651         return 0;
 652 }
 653
 654 static int
 655 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 656 {
 657         u16 mode = P2P_MODE_DISABLE;
 658
 659         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 660                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 661
 662         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 663                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 664                 return -1;
 665
 666         return 0;
 667 }
 668
 669 /*
 670  * This function initializes the functionalities for P2P client.
 671  * The P2P client initialization sequence is:
 672  * disable -> device -> client
 673  */
 674 static int
 675 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 676 {
 677         u16 mode;
 678
 679         if (mwifiex_cfg80211_deinit_p2p(priv))
 680                 return -1;
 681
 682         mode = P2P_MODE_DEVICE;
 683         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 684                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 685                 return -1;
 686
 687         mode = P2P_MODE_CLIENT;
 688         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 689                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 690                 return -1;
 691
 692         return 0;
 693 }
 694
 695 /*
 696  * This function initializes the functionalities for P2P GO.
 697  * The P2P GO initialization sequence is:
 698  * disable -> device -> GO
 699  */
 700 static int
 701 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 702 {
 703         u16 mode;
 704
 705         if (mwifiex_cfg80211_deinit_p2p(priv))
 706                 return -1;
 707
 708         mode = P2P_MODE_DEVICE;
 709         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 710                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 711                 return -1;
 712
 713         mode = P2P_MODE_GO;
 714         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 715                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 716                 return -1;
 717
 718         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 719                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 720
 721         return 0;
 722 }
 723
 724 /*
 725  * CFG802.11 operation handler to change interface type.
 726  */
 727 static int
 728 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 729                                      struct net_device *dev,
 730                                      enum nl80211_iftype type, u32 *flags,
 731                                      struct vif_params *params)
 732 {
 733         int ret;
 734         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 735
 736         switch (dev->ieee80211_ptr->iftype) {
 737         case NL80211_IFTYPE_ADHOC:
 738                 switch (type) {
 739                 case NL80211_IFTYPE_STATION:
 740                         break;
 741                 case NL80211_IFTYPE_UNSPECIFIED:
 742                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 743                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 744                         return 0;
 745                 case NL80211_IFTYPE_AP:
 746                 default:
 747                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 748                                   dev->name, type);
 749                         return -EOPNOTSUPP;
 750                 }
 751                 break;
 752         case NL80211_IFTYPE_STATION:
 753                 switch (type) {
 754                 case NL80211_IFTYPE_ADHOC:
 755                         break;
 756                 case NL80211_IFTYPE_P2P_CLIENT:
 757                         if (mwifiex_cfg80211_init_p2p_client(priv))
 758                                 return -EFAULT;
 759                         dev->ieee80211_ptr->iftype = type;
 760                         return 0;
 761                 case NL80211_IFTYPE_P2P_GO:
 762                         if (mwifiex_cfg80211_init_p2p_go(priv))
 763                                 return -EFAULT;
 764                         dev->ieee80211_ptr->iftype = type;
 765                         return 0;
 766                 case NL80211_IFTYPE_UNSPECIFIED:
 767                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 768                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 769                         return 0;
 770                 case NL80211_IFTYPE_AP:
 771                 default:
 772                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 773                                   dev->name, type);
 774                         return -EOPNOTSUPP;
 775                 }
 776                 break;
 777         case NL80211_IFTYPE_AP:
 778                 switch (type) {
 779                 case NL80211_IFTYPE_UNSPECIFIED:
 780                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 781                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 782                         return 0;
 783                 case NL80211_IFTYPE_ADHOC:
 784                 case NL80211_IFTYPE_STATION:
 785                 default:
 786                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 787                                   dev->name, type);
 788                         return -EOPNOTSUPP;
 789                 }
 790                 break;
 791         case NL80211_IFTYPE_P2P_CLIENT:
 792         case NL80211_IFTYPE_P2P_GO:
 793                 switch (type) {
 794                 case NL80211_IFTYPE_STATION:
 795                         if (mwifiex_cfg80211_deinit_p2p(priv))
 796                                 return -EFAULT;
 797                         dev->ieee80211_ptr->iftype = type;
 798                         return 0;
 799                 default:
 800                         return -EOPNOTSUPP;
 801                 }
 802                 break;
 803         default:
 804                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 805                           dev->name, dev->ieee80211_ptr->iftype);
 806                 return -EOPNOTSUPP;
 807         }
 808
 809         dev->ieee80211_ptr->iftype = type;
 810         priv->bss_mode = type;
 811         mwifiex_deauthenticate(priv, NULL);
 812
 813         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 814
 815         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 816                                HostCmd_ACT_GEN_SET, 0, NULL, true);
 817
 818         return ret;
 819 }
 820
 821 static void
 822 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 823                      struct rate_info *rate)
 824 {
 825         struct mwifiex_adapter *adapter = priv->adapter;
 826
 827         if (adapter->is_hw_11ac_capable) {
 828                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 829                 if (tx_htinfo & BIT(0)) {
 830                         /* HT */
 831                         rate->mcs = priv->tx_rate;
 832                         rate->flags |= RATE_INFO_FLAGS_MCS;
 833                 }
 834                 if (tx_htinfo & BIT(1)) {
 835                         /* VHT */
 836                         rate->mcs = priv->tx_rate & 0x0F;
 837                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 838                 }
 839
 840                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 841                         /* HT or VHT */
 842                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 843                         case 0:
 844                                 rate->bw = RATE_INFO_BW_20;
 845                                 break;
 846                         case (BIT(2)):
 847                                 rate->bw = RATE_INFO_BW_40;
 848                                 break;
 849                         case (BIT(3)):
 850                                 rate->bw = RATE_INFO_BW_80;
 851                                 break;
 852                         case (BIT(3) | BIT(2)):
 853                                 rate->bw = RATE_INFO_BW_160;
 854                                 break;
 855                         }
 856
 857                         if (tx_htinfo & BIT(4))
 858                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 859
 860                         if ((priv->tx_rate >> 4) == 1)
 861                                 rate->nss = 2;
 862                         else
 863                                 rate->nss = 1;
 864                 }
 865         } else {
 866                 /*
 867                  * Bit 0 in tx_htinfo indicates that current Tx rate
 868                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 869                  */
 870                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 871                         rate->mcs = priv->tx_rate;
 872                         rate->flags |= RATE_INFO_FLAGS_MCS;
 873                         rate->bw = RATE_INFO_BW_20;
 874                         if (tx_htinfo & BIT(1))
 875                                 rate->bw = RATE_INFO_BW_40;
 876                         if (tx_htinfo & BIT(2))
 877                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 878                 }
 879         }
 880 }
 881
 882 /*
 883  * This function dumps the station information on a buffer.
 884  *
 885  * The following information are shown -
 886  *      - Total bytes transmitted
 887  *      - Total bytes received
 888  *      - Total packets transmitted
 889  *      - Total packets received
 890  *      - Signal quality level
 891  *      - Transmission rate
 892  */
 893 static int
 894 mwifiex_dump_station_info(struct mwifiex_private *priv,
 895                           struct station_info *sinfo)
 896 {
 897         u32 rate;
 898
 899         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
 900                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
 901                         BIT(NL80211_STA_INFO_TX_BITRATE) |
 902                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
 903
 904         /* Get signal information from the firmware */
 905         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
 906                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
 907                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 908                 return -EFAULT;
 909         }
 910
 911         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 912                 dev_err(priv->adapter->dev, "getting data rate\n");
 913                 return -EFAULT;
 914         }
 915
 916         /* Get DTIM period information from firmware */
 917         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 918                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 919                          &priv->dtim_period, true);
 920
 921         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 922
 923         sinfo->signal_avg = priv->bcn_rssi_avg;
 924         sinfo->rx_bytes = priv->stats.rx_bytes;
 925         sinfo->tx_bytes = priv->stats.tx_bytes;
 926         sinfo->rx_packets = priv->stats.rx_packets;
 927         sinfo->tx_packets = priv->stats.tx_packets;
 928         sinfo->signal = priv->bcn_rssi_avg;
 929         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 930         sinfo->txrate.legacy = rate * 5;
 931
 932         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 933                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
 934                 sinfo->bss_param.flags = 0;
 935                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 936                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 937                         sinfo->bss_param.flags |=
 938                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 939                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 940                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 941                         sinfo->bss_param.flags |=
 942                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 943                 sinfo->bss_param.dtim_period = priv->dtim_period;
 944                 sinfo->bss_param.beacon_interval =
 945                         priv->curr_bss_params.bss_descriptor.beacon_period;
 946         }
 947
 948         return 0;
 949 }
 950
 951 /*
 952  * CFG802.11 operation handler to get station information.
 953  *
 954  * This function only works in connected mode, and dumps the
 955  * requested station information, if available.
 956  */
 957 static int
 958 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 959                              const u8 *mac, struct station_info *sinfo)
 960 {
 961         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 962
 963         if (!priv->media_connected)
 964                 return -ENOENT;
 965         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 966                 return -ENOENT;
 967
 968         return mwifiex_dump_station_info(priv, sinfo);
 969 }
 970
 971 /*
 972  * CFG802.11 operation handler to dump station information.
 973  */
 974 static int
 975 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 976                               int idx, u8 *mac, struct station_info *sinfo)
 977 {
 978         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 979
 980         if (!priv->media_connected || idx)
 981                 return -ENOENT;
 982
 983         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 984
 985         return mwifiex_dump_station_info(priv, sinfo);
 986 }
 987
 988 static int
 989 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 990                              int idx, struct survey_info *survey)
 991 {
 992         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 993         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
 994         enum ieee80211_band band;
 995
 996         dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
 997
 998         memset(survey, 0, sizeof(struct survey_info));
 999
1000         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1001             priv->media_connected && idx == 0) {
1002                         u8 curr_bss_band = priv->curr_bss_params.band;
1003                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1004
1005                         band = mwifiex_band_to_radio_type(curr_bss_band);
1006                         survey->channel = ieee80211_get_channel(wiphy,
1007                                 ieee80211_channel_to_frequency(chan, band));
1008
1009                         if (priv->bcn_nf_last) {
1010                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1011                                 survey->noise = priv->bcn_nf_last;
1012                         }
1013                         return 0;
1014         }
1015
1016         if (idx >= priv->adapter->num_in_chan_stats)
1017                 return -ENOENT;
1018
1019         if (!pchan_stats[idx].cca_scan_dur)
1020                 return 0;
1021
1022         band = pchan_stats[idx].bandcfg;
1023         survey->channel = ieee80211_get_channel(wiphy,
1024             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1025         survey->filled = SURVEY_INFO_NOISE_DBM |
1026                          SURVEY_INFO_TIME |
1027                          SURVEY_INFO_TIME_BUSY;
1028         survey->noise = pchan_stats[idx].noise;
1029         survey->time = pchan_stats[idx].cca_scan_dur;
1030         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1031
1032         return 0;
1033 }
1034
1035 /* Supported rates to be advertised to the cfg80211 */
1036 static struct ieee80211_rate mwifiex_rates[] = {
1037         {.bitrate = 10, .hw_value = 2, },
1038         {.bitrate = 20, .hw_value = 4, },
1039         {.bitrate = 55, .hw_value = 11, },
1040         {.bitrate = 110, .hw_value = 22, },
1041         {.bitrate = 60, .hw_value = 12, },
1042         {.bitrate = 90, .hw_value = 18, },
1043         {.bitrate = 120, .hw_value = 24, },
1044         {.bitrate = 180, .hw_value = 36, },
1045         {.bitrate = 240, .hw_value = 48, },
1046         {.bitrate = 360, .hw_value = 72, },
1047         {.bitrate = 480, .hw_value = 96, },
1048         {.bitrate = 540, .hw_value = 108, },
1049 };
1050
1051 /* Channel definitions to be advertised to cfg80211 */
1052 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1053         {.center_freq = 2412, .hw_value = 1, },
1054         {.center_freq = 2417, .hw_value = 2, },
1055         {.center_freq = 2422, .hw_value = 3, },
1056         {.center_freq = 2427, .hw_value = 4, },
1057         {.center_freq = 2432, .hw_value = 5, },
1058         {.center_freq = 2437, .hw_value = 6, },
1059         {.center_freq = 2442, .hw_value = 7, },
1060         {.center_freq = 2447, .hw_value = 8, },
1061         {.center_freq = 2452, .hw_value = 9, },
1062         {.center_freq = 2457, .hw_value = 10, },
1063         {.center_freq = 2462, .hw_value = 11, },
1064         {.center_freq = 2467, .hw_value = 12, },
1065         {.center_freq = 2472, .hw_value = 13, },
1066         {.center_freq = 2484, .hw_value = 14, },
1067 };
1068
1069 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1070         .channels = mwifiex_channels_2ghz,
1071         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1072         .bitrates = mwifiex_rates,
1073         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1074 };
1075
1076 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1077         {.center_freq = 5040, .hw_value = 8, },
1078         {.center_freq = 5060, .hw_value = 12, },
1079         {.center_freq = 5080, .hw_value = 16, },
1080         {.center_freq = 5170, .hw_value = 34, },
1081         {.center_freq = 5190, .hw_value = 38, },
1082         {.center_freq = 5210, .hw_value = 42, },
1083         {.center_freq = 5230, .hw_value = 46, },
1084         {.center_freq = 5180, .hw_value = 36, },
1085         {.center_freq = 5200, .hw_value = 40, },
1086         {.center_freq = 5220, .hw_value = 44, },
1087         {.center_freq = 5240, .hw_value = 48, },
1088         {.center_freq = 5260, .hw_value = 52, },
1089         {.center_freq = 5280, .hw_value = 56, },
1090         {.center_freq = 5300, .hw_value = 60, },
1091         {.center_freq = 5320, .hw_value = 64, },
1092         {.center_freq = 5500, .hw_value = 100, },
1093         {.center_freq = 5520, .hw_value = 104, },
1094         {.center_freq = 5540, .hw_value = 108, },
1095         {.center_freq = 5560, .hw_value = 112, },
1096         {.center_freq = 5580, .hw_value = 116, },
1097         {.center_freq = 5600, .hw_value = 120, },
1098         {.center_freq = 5620, .hw_value = 124, },
1099         {.center_freq = 5640, .hw_value = 128, },
1100         {.center_freq = 5660, .hw_value = 132, },
1101         {.center_freq = 5680, .hw_value = 136, },
1102         {.center_freq = 5700, .hw_value = 140, },
1103         {.center_freq = 5745, .hw_value = 149, },
1104         {.center_freq = 5765, .hw_value = 153, },
1105         {.center_freq = 5785, .hw_value = 157, },
1106         {.center_freq = 5805, .hw_value = 161, },
1107         {.center_freq = 5825, .hw_value = 165, },
1108 };
1109
1110 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1111         .channels = mwifiex_channels_5ghz,
1112         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1113         .bitrates = mwifiex_rates + 4,
1114         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1115 };
1116
1117
1118 /* Supported crypto cipher suits to be advertised to cfg80211 */
1119 static const u32 mwifiex_cipher_suites[] = {
1120         WLAN_CIPHER_SUITE_WEP40,
1121         WLAN_CIPHER_SUITE_WEP104,
1122         WLAN_CIPHER_SUITE_TKIP,
1123         WLAN_CIPHER_SUITE_CCMP,
1124         WLAN_CIPHER_SUITE_AES_CMAC,
1125 };
1126
1127 /* Supported mgmt frame types to be advertised to cfg80211 */
1128 static const struct ieee80211_txrx_stypes
1129 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1130         [NL80211_IFTYPE_STATION] = {
1131                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1132                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1133                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1134                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1135         },
1136         [NL80211_IFTYPE_AP] = {
1137                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1138                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1139                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1140                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1141         },
1142         [NL80211_IFTYPE_P2P_CLIENT] = {
1143                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1144                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1145                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1146                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1147         },
1148         [NL80211_IFTYPE_P2P_GO] = {
1149                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1150                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1151                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1152                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1153         },
1154 };
1155
1156 /*
1157  * CFG802.11 operation handler for setting bit rates.
1158  *
1159  * Function configures data rates to firmware using bitrate mask
1160  * provided by cfg80211.
1161  */
1162 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1163                                 struct net_device *dev,
1164                                 const u8 *peer,
1165                                 const struct cfg80211_bitrate_mask *mask)
1166 {
1167         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1168         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1169         enum ieee80211_band band;
1170         struct mwifiex_adapter *adapter = priv->adapter;
1171
1172         if (!priv->media_connected) {
1173                 dev_err(adapter->dev,
1174                         "Can not set Tx data rate in disconnected state\n");
1175                 return -EINVAL;
1176         }
1177
1178         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1179
1180         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1181
1182         /* Fill HR/DSSS rates. */
1183         if (band == IEEE80211_BAND_2GHZ)
1184                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1185
1186         /* Fill OFDM rates */
1187         if (band == IEEE80211_BAND_2GHZ)
1188                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1189         else
1190                 bitmap_rates[1] = mask->control[band].legacy;
1191
1192         /* Fill HT MCS rates */
1193         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1194         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1195                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1196
1197        /* Fill VHT MCS rates */
1198         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1199                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1200                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1201                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1202         }
1203
1204         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1205                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1206 }
1207
1208 /*
1209  * CFG802.11 operation handler for connection quality monitoring.
1210  *
1211  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1212  * events to FW.
1213  */
1214 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1215                                                 struct net_device *dev,
1216                                                 s32 rssi_thold, u32 rssi_hyst)
1217 {
1218         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1219         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1220
1221         priv->cqm_rssi_thold = rssi_thold;
1222         priv->cqm_rssi_hyst = rssi_hyst;
1223
1224         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1225         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1226
1227         /* Subscribe/unsubscribe low and high rssi events */
1228         if (rssi_thold && rssi_hyst) {
1229                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1230                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1231                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1232                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1233                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1234                 return mwifiex_send_cmd(priv,
1235                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1236                                         0, 0, &subsc_evt, true);
1237         } else {
1238                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1239                 return mwifiex_send_cmd(priv,
1240                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1241                                         0, 0, &subsc_evt, true);
1242         }
1243
1244         return 0;
1245 }
1246
1247 /* cfg80211 operation handler for change_beacon.
1248  * Function retrieves and sets modified management IEs to FW.
1249  */
1250 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1251                                           struct net_device *dev,
1252                                           struct cfg80211_beacon_data *data)
1253 {
1254         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1255
1256         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1257                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1258                 return -EINVAL;
1259         }
1260
1261         if (!priv->bss_started) {
1262                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1263                 return -EINVAL;
1264         }
1265
1266         if (mwifiex_set_mgmt_ies(priv, data)) {
1267                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1268                 return -EFAULT;
1269         }
1270
1271         return 0;
1272 }
1273
1274 /* cfg80211 operation handler for del_station.
1275  * Function deauthenticates station which value is provided in mac parameter.
1276  * If mac is NULL/broadcast, all stations in associated station list are
1277  * deauthenticated. If bss is not started or there are no stations in
1278  * associated stations list, no action is taken.
1279  */
1280 static int
1281 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1282                              struct station_del_parameters *params)
1283 {
1284         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1285         struct mwifiex_sta_node *sta_node;
1286         u8 deauth_mac[ETH_ALEN];
1287         unsigned long flags;
1288
1289         if (list_empty(&priv->sta_list) || !priv->bss_started)
1290                 return 0;
1291
1292         if (!params->mac || is_broadcast_ether_addr(params->mac))
1293                 return 0;
1294
1295         wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac);
1296
1297         memset(deauth_mac, 0, ETH_ALEN);
1298
1299         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1300         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1301         if (sta_node)
1302                 ether_addr_copy(deauth_mac, params->mac);
1303         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1304
1305         if (is_valid_ether_addr(deauth_mac)) {
1306                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1307                                      HostCmd_ACT_GEN_SET, 0,
1308                                      deauth_mac, true))
1309                         return -1;
1310         }
1311
1312         return 0;
1313 }
1314
1315 static int
1316 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1317 {
1318         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1319         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1320                                                         MWIFIEX_BSS_ROLE_ANY);
1321         struct mwifiex_ds_ant_cfg ant_cfg;
1322
1323         if (!tx_ant || !rx_ant)
1324                 return -EOPNOTSUPP;
1325
1326         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1327                 /* Not a MIMO chip. User should provide specific antenna number
1328                  * for Tx/Rx path or enable all antennas for diversity
1329                  */
1330                 if (tx_ant != rx_ant)
1331                         return -EOPNOTSUPP;
1332
1333                 if ((tx_ant & (tx_ant - 1)) &&
1334                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1335                         return -EOPNOTSUPP;
1336
1337                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1338                     (priv->adapter->number_of_antenna > 1)) {
1339                         tx_ant = RF_ANTENNA_AUTO;
1340                         rx_ant = RF_ANTENNA_AUTO;
1341                 }
1342         } else {
1343                 struct ieee80211_sta_ht_cap *ht_info;
1344                 int rx_mcs_supp;
1345                 enum ieee80211_band band;
1346
1347                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1348                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1349                         if (adapter->is_hw_11ac_capable)
1350                                 adapter->usr_dot_11ac_mcs_support =
1351                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1352                 } else {
1353                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1354                         if (adapter->is_hw_11ac_capable)
1355                                 adapter->usr_dot_11ac_mcs_support =
1356                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1357                 }
1358
1359                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1360                         if (!adapter->wiphy->bands[band])
1361                                 continue;
1362
1363                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1364                         rx_mcs_supp =
1365                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1366                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1367                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1368                 }
1369         }
1370
1371         ant_cfg.tx_ant = tx_ant;
1372         ant_cfg.rx_ant = rx_ant;
1373
1374         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1375                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1376 }
1377
1378 /* cfg80211 operation handler for stop ap.
1379  * Function stops BSS running at uAP interface.
1380  */
1381 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1382 {
1383         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1384
1385         if (mwifiex_del_mgmt_ies(priv))
1386                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1387
1388         priv->ap_11n_enabled = 0;
1389
1390         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1391                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1392                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1393                 return -1;
1394         }
1395
1396         return 0;
1397 }
1398
1399 /* cfg80211 operation handler for start_ap.
1400  * Function sets beacon period, DTIM period, SSID and security into
1401  * AP config structure.
1402  * AP is configured with these settings and BSS is started.
1403  */
1404 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1405                                      struct net_device *dev,
1406                                      struct cfg80211_ap_settings *params)
1407 {
1408         struct mwifiex_uap_bss_param *bss_cfg;
1409         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1410         u8 config_bands = 0;
1411
1412         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1413                 return -1;
1414         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1415                 return -1;
1416
1417         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1418         if (!bss_cfg)
1419                 return -ENOMEM;
1420
1421         mwifiex_set_sys_config_invalid_data(bss_cfg);
1422
1423         if (params->beacon_interval)
1424                 bss_cfg->beacon_period = params->beacon_interval;
1425         if (params->dtim_period)
1426                 bss_cfg->dtim_period = params->dtim_period;
1427
1428         if (params->ssid && params->ssid_len) {
1429                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1430                 bss_cfg->ssid.ssid_len = params->ssid_len;
1431         }
1432
1433         switch (params->hidden_ssid) {
1434         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1435                 bss_cfg->bcast_ssid_ctl = 1;
1436                 break;
1437         case NL80211_HIDDEN_SSID_ZERO_LEN:
1438                 bss_cfg->bcast_ssid_ctl = 0;
1439                 break;
1440         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1441                 /* firmware doesn't support this type of hidden SSID */
1442         default:
1443                 kfree(bss_cfg);
1444                 return -EINVAL;
1445         }
1446
1447         bss_cfg->channel = ieee80211_frequency_to_channel(
1448                                 params->chandef.chan->center_freq);
1449
1450         /* Set appropriate bands */
1451         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1452                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1453                 config_bands = BAND_B | BAND_G;
1454
1455                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1456                         config_bands |= BAND_GN;
1457         } else {
1458                 bss_cfg->band_cfg = BAND_CONFIG_A;
1459                 config_bands = BAND_A;
1460
1461                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1462                         config_bands |= BAND_AN;
1463
1464                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1465                         config_bands |= BAND_AAC;
1466         }
1467
1468         if (!((config_bands | priv->adapter->fw_bands) &
1469               ~priv->adapter->fw_bands))
1470                 priv->adapter->config_bands = config_bands;
1471
1472         mwifiex_set_uap_rates(bss_cfg, params);
1473         mwifiex_send_domain_info_cmd_fw(wiphy);
1474
1475         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1476                 kfree(bss_cfg);
1477                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1478                 return -1;
1479         }
1480
1481         mwifiex_set_ht_params(priv, bss_cfg, params);
1482
1483         if (priv->adapter->is_hw_11ac_capable) {
1484                 mwifiex_set_vht_params(priv, bss_cfg, params);
1485                 mwifiex_set_vht_width(priv, params->chandef.width,
1486                                       priv->ap_11ac_enabled);
1487         }
1488
1489         if (priv->ap_11ac_enabled)
1490                 mwifiex_set_11ac_ba_params(priv);
1491         else
1492                 mwifiex_set_ba_params(priv);
1493
1494         mwifiex_set_wmm_params(priv, bss_cfg, params);
1495
1496         if (params->inactivity_timeout > 0) {
1497                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1498                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1499                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1500         }
1501
1502         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1503                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1504                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1505                 kfree(bss_cfg);
1506                 return -1;
1507         }
1508
1509         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1510                              HostCmd_ACT_GEN_SET,
1511                              UAP_BSS_PARAMS_I, bss_cfg, false)) {
1512                 wiphy_err(wiphy, "Failed to set the SSID\n");
1513                 kfree(bss_cfg);
1514                 return -1;
1515         }
1516
1517         kfree(bss_cfg);
1518
1519         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1520                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1521                 wiphy_err(wiphy, "Failed to start the BSS\n");
1522                 return -1;
1523         }
1524
1525         if (priv->sec_info.wep_enabled)
1526                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1527         else
1528                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1529
1530         if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1531                              HostCmd_ACT_GEN_SET, 0,
1532                              &priv->curr_pkt_filter, true))
1533                 return -1;
1534
1535         return 0;
1536 }
1537
1538 /*
1539  * CFG802.11 operation handler for disconnection request.
1540  *
1541  * This function does not work when there is already a disconnection
1542  * procedure going on.
1543  */
1544 static int
1545 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1546                             u16 reason_code)
1547 {
1548         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1549
1550         if (mwifiex_deauthenticate(priv, NULL))
1551                 return -EFAULT;
1552
1553         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1554                 " reason code %d\n", priv->cfg_bssid, reason_code);
1555
1556         memset(priv->cfg_bssid, 0, ETH_ALEN);
1557         priv->hs2_enabled = false;
1558
1559         return 0;
1560 }
1561
1562 /*
1563  * This function informs the CFG802.11 subsystem of a new IBSS.
1564  *
1565  * The following information are sent to the CFG802.11 subsystem
1566  * to register the new IBSS. If we do not register the new IBSS,
1567  * a kernel panic will result.
1568  *      - SSID
1569  *      - SSID length
1570  *      - BSSID
1571  *      - Channel
1572  */
1573 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1574 {
1575         struct ieee80211_channel *chan;
1576         struct mwifiex_bss_info bss_info;
1577         struct cfg80211_bss *bss;
1578         int ie_len;
1579         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1580         enum ieee80211_band band;
1581
1582         if (mwifiex_get_bss_info(priv, &bss_info))
1583                 return -1;
1584
1585         ie_buf[0] = WLAN_EID_SSID;
1586         ie_buf[1] = bss_info.ssid.ssid_len;
1587
1588         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1589                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1590         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1591
1592         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1593         chan = __ieee80211_get_channel(priv->wdev.wiphy,
1594                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1595                                                        band));
1596
1597         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
1598                                   CFG80211_BSS_FTYPE_UNKNOWN,
1599                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1600                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1601         cfg80211_put_bss(priv->wdev.wiphy, bss);
1602         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1603
1604         return 0;
1605 }
1606
1607 /*
1608  * This function connects with a BSS.
1609  *
1610  * This function handles both Infra and Ad-Hoc modes. It also performs
1611  * validity checking on the provided parameters, disconnects from the
1612  * current BSS (if any), sets up the association/scan parameters,
1613  * including security settings, and performs specific SSID scan before
1614  * trying to connect.
1615  *
1616  * For Infra mode, the function returns failure if the specified SSID
1617  * is not found in scan table. However, for Ad-Hoc mode, it can create
1618  * the IBSS if it does not exist. On successful completion in either case,
1619  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1620  */
1621 static int
1622 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1623                        const u8 *ssid, const u8 *bssid, int mode,
1624                        struct ieee80211_channel *channel,
1625                        struct cfg80211_connect_params *sme, bool privacy)
1626 {
1627         struct cfg80211_ssid req_ssid;
1628         int ret, auth_type = 0;
1629         struct cfg80211_bss *bss = NULL;
1630         u8 is_scanning_required = 0;
1631
1632         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1633
1634         req_ssid.ssid_len = ssid_len;
1635         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1636                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1637                 return -EINVAL;
1638         }
1639
1640         memcpy(req_ssid.ssid, ssid, ssid_len);
1641         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1642                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1643                 return -EINVAL;
1644         }
1645
1646         /* As this is new association, clear locally stored
1647          * keys and security related flags */
1648         priv->sec_info.wpa_enabled = false;
1649         priv->sec_info.wpa2_enabled = false;
1650         priv->wep_key_curr_index = 0;
1651         priv->sec_info.encryption_mode = 0;
1652         priv->sec_info.is_authtype_auto = 0;
1653         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1654
1655         if (mode == NL80211_IFTYPE_ADHOC) {
1656                 /* "privacy" is set only for ad-hoc mode */
1657                 if (privacy) {
1658                         /*
1659                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1660                          * the firmware can find a matching network from the
1661                          * scan. The cfg80211 does not give us the encryption
1662                          * mode at this stage so just setting it to WEP here.
1663                          */
1664                         priv->sec_info.encryption_mode =
1665                                         WLAN_CIPHER_SUITE_WEP104;
1666                         priv->sec_info.authentication_mode =
1667                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1668                 }
1669
1670                 goto done;
1671         }
1672
1673         /* Now handle infra mode. "sme" is valid for infra mode only */
1674         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1675                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1676                 priv->sec_info.is_authtype_auto = 1;
1677         } else {
1678                 auth_type = sme->auth_type;
1679         }
1680
1681         if (sme->crypto.n_ciphers_pairwise) {
1682                 priv->sec_info.encryption_mode =
1683                                                 sme->crypto.ciphers_pairwise[0];
1684                 priv->sec_info.authentication_mode = auth_type;
1685         }
1686
1687         if (sme->crypto.cipher_group) {
1688                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1689                 priv->sec_info.authentication_mode = auth_type;
1690         }
1691         if (sme->ie)
1692                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1693
1694         if (sme->key) {
1695                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1696                         dev_dbg(priv->adapter->dev,
1697                                 "info: setting wep encryption"
1698                                 " with key len %d\n", sme->key_len);
1699                         priv->wep_key_curr_index = sme->key_idx;
1700                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1701                                                  sme->key_len, sme->key_idx,
1702                                                  NULL, 0);
1703                 }
1704         }
1705 done:
1706         /*
1707          * Scan entries are valid for some time (15 sec). So we can save one
1708          * active scan time if we just try cfg80211_get_bss first. If it fails
1709          * then request scan and cfg80211_get_bss() again for final output.
1710          */
1711         while (1) {
1712                 if (is_scanning_required) {
1713                         /* Do specific SSID scanning */
1714                         if (mwifiex_request_scan(priv, &req_ssid)) {
1715                                 dev_err(priv->adapter->dev, "scan error\n");
1716                                 return -EFAULT;
1717                         }
1718                 }
1719
1720                 /* Find the BSS we want using available scan results */
1721                 if (mode == NL80211_IFTYPE_ADHOC)
1722                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
1723                                                bssid, ssid, ssid_len,
1724                                                WLAN_CAPABILITY_IBSS,
1725                                                WLAN_CAPABILITY_IBSS);
1726                 else
1727                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
1728                                                bssid, ssid, ssid_len,
1729                                                WLAN_CAPABILITY_ESS,
1730                                                WLAN_CAPABILITY_ESS);
1731
1732                 if (!bss) {
1733                         if (is_scanning_required) {
1734                                 dev_warn(priv->adapter->dev,
1735                                          "assoc: requested bss not found in scan results\n");
1736                                 break;
1737                         }
1738                         is_scanning_required = 1;
1739                 } else {
1740                         dev_dbg(priv->adapter->dev,
1741                                 "info: trying to associate to '%s' bssid %pM\n",
1742                                 (char *) req_ssid.ssid, bss->bssid);
1743                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1744                         break;
1745                 }
1746         }
1747
1748         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1749         if (ret)
1750                 return ret;
1751
1752         if (mode == NL80211_IFTYPE_ADHOC) {
1753                 /* Inform the BSS information to kernel, otherwise
1754                  * kernel will give a panic after successful assoc */
1755                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1756                         return -EFAULT;
1757         }
1758
1759         return ret;
1760 }
1761
1762 /*
1763  * CFG802.11 operation handler for association request.
1764  *
1765  * This function does not work when the current mode is set to Ad-Hoc, or
1766  * when there is already an association procedure going on. The given BSS
1767  * information is used to associate.
1768  */
1769 static int
1770 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1771                          struct cfg80211_connect_params *sme)
1772 {
1773         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1774         struct mwifiex_adapter *adapter = priv->adapter;
1775         int ret;
1776
1777         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1778                 wiphy_err(wiphy,
1779                           "%s: reject infra assoc request in non-STA role\n",
1780                           dev->name);
1781                 return -EINVAL;
1782         }
1783
1784         if (priv->wdev.current_bss) {
1785                 wiphy_warn(wiphy, "%s: already connected\n", dev->name);
1786                 return -EALREADY;
1787         }
1788
1789         if (adapter->surprise_removed || adapter->is_cmd_timedout) {
1790                 wiphy_err(wiphy,
1791                           "%s: Ignore connection. Card removed or FW in bad state\n",
1792                           dev->name);
1793                 return -EFAULT;
1794         }
1795
1796         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1797                   (char *) sme->ssid, sme->bssid);
1798
1799         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1800                                      priv->bss_mode, sme->channel, sme, 0);
1801         if (!ret) {
1802                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1803                                         NULL, 0, WLAN_STATUS_SUCCESS,
1804                                         GFP_KERNEL);
1805                 dev_dbg(priv->adapter->dev,
1806                         "info: associated to bssid %pM successfully\n",
1807                         priv->cfg_bssid);
1808                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
1809                     priv->adapter->auto_tdls &&
1810                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
1811                         mwifiex_setup_auto_tdls_timer(priv);
1812         } else {
1813                 dev_dbg(priv->adapter->dev,
1814                         "info: association to bssid %pM failed\n",
1815                         priv->cfg_bssid);
1816                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1817
1818                 if (ret > 0)
1819                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1820                                                 NULL, 0, NULL, 0, ret,
1821                                                 GFP_KERNEL);
1822                 else
1823                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1824                                                 NULL, 0, NULL, 0,
1825                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1826                                                 GFP_KERNEL);
1827         }
1828
1829         return 0;
1830 }
1831
1832 /*
1833  * This function sets following parameters for ibss network.
1834  *  -  channel
1835  *  -  start band
1836  *  -  11n flag
1837  *  -  secondary channel offset
1838  */
1839 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1840                                    struct cfg80211_ibss_params *params)
1841 {
1842         struct wiphy *wiphy = priv->wdev.wiphy;
1843         struct mwifiex_adapter *adapter = priv->adapter;
1844         int index = 0, i;
1845         u8 config_bands = 0;
1846
1847         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1848                 if (!params->basic_rates) {
1849                         config_bands = BAND_B | BAND_G;
1850                 } else {
1851                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1852                                 /*
1853                                  * Rates below 6 Mbps in the table are CCK
1854                                  * rates; 802.11b and from 6 they are OFDM;
1855                                  * 802.11G
1856                                  */
1857                                 if (mwifiex_rates[i].bitrate == 60) {
1858                                         index = 1 << i;
1859                                         break;
1860                                 }
1861                         }
1862
1863                         if (params->basic_rates < index) {
1864                                 config_bands = BAND_B;
1865                         } else {
1866                                 config_bands = BAND_G;
1867                                 if (params->basic_rates % index)
1868                                         config_bands |= BAND_B;
1869                         }
1870                 }
1871
1872                 if (cfg80211_get_chandef_type(&params->chandef) !=
1873                                                 NL80211_CHAN_NO_HT)
1874                         config_bands |= BAND_G | BAND_GN;
1875         } else {
1876                 if (cfg80211_get_chandef_type(&params->chandef) ==
1877                                                 NL80211_CHAN_NO_HT)
1878                         config_bands = BAND_A;
1879                 else
1880                         config_bands = BAND_AN | BAND_A;
1881         }
1882
1883         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1884                 adapter->config_bands = config_bands;
1885                 adapter->adhoc_start_band = config_bands;
1886
1887                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1888                         adapter->adhoc_11n_enabled = true;
1889                 else
1890                         adapter->adhoc_11n_enabled = false;
1891         }
1892
1893         adapter->sec_chan_offset =
1894                 mwifiex_chan_type_to_sec_chan_offset(
1895                         cfg80211_get_chandef_type(&params->chandef));
1896         priv->adhoc_channel = ieee80211_frequency_to_channel(
1897                                 params->chandef.chan->center_freq);
1898
1899         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1900                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1901
1902         return 0;
1903 }
1904
1905 /*
1906  * CFG802.11 operation handler to join an IBSS.
1907  *
1908  * This function does not work in any mode other than Ad-Hoc, or if
1909  * a join operation is already in progress.
1910  */
1911 static int
1912 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1913                            struct cfg80211_ibss_params *params)
1914 {
1915         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1916         int ret = 0;
1917
1918         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1919                 wiphy_err(wiphy, "request to join ibss received "
1920                                 "when station is not in ibss mode\n");
1921                 goto done;
1922         }
1923
1924         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1925                   (char *) params->ssid, params->bssid);
1926
1927         mwifiex_set_ibss_params(priv, params);
1928
1929         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1930                                      params->bssid, priv->bss_mode,
1931                                      params->chandef.chan, NULL,
1932                                      params->privacy);
1933 done:
1934         if (!ret) {
1935                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1936                                      params->chandef.chan, GFP_KERNEL);
1937                 dev_dbg(priv->adapter->dev,
1938                         "info: joined/created adhoc network with bssid"
1939                         " %pM successfully\n", priv->cfg_bssid);
1940         } else {
1941                 dev_dbg(priv->adapter->dev,
1942                         "info: failed creating/joining adhoc network\n");
1943         }
1944
1945         return ret;
1946 }
1947
1948 /*
1949  * CFG802.11 operation handler to leave an IBSS.
1950  *
1951  * This function does not work if a leave operation is
1952  * already in progress.
1953  */
1954 static int
1955 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1956 {
1957         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1958
1959         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1960                   priv->cfg_bssid);
1961         if (mwifiex_deauthenticate(priv, NULL))
1962                 return -EFAULT;
1963
1964         memset(priv->cfg_bssid, 0, ETH_ALEN);
1965
1966         return 0;
1967 }
1968
1969 /*
1970  * CFG802.11 operation handler for scan request.
1971  *
1972  * This function issues a scan request to the firmware based upon
1973  * the user specified scan configuration. On successfull completion,
1974  * it also informs the results.
1975  */
1976 static int
1977 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1978                       struct cfg80211_scan_request *request)
1979 {
1980         struct net_device *dev = request->wdev->netdev;
1981         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1982         int i, offset, ret;
1983         struct ieee80211_channel *chan;
1984         struct ieee_types_header *ie;
1985         struct mwifiex_user_scan_cfg *user_scan_cfg;
1986
1987         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1988
1989         /* Block scan request if scan operation or scan cleanup when interface
1990          * is disabled is in process
1991          */
1992         if (priv->scan_request || priv->scan_aborting) {
1993                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1994                 return -EBUSY;
1995         }
1996
1997         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1998         if (!user_scan_cfg)
1999                 return -ENOMEM;
2000
2001         priv->scan_request = request;
2002
2003         user_scan_cfg->num_ssids = request->n_ssids;
2004         user_scan_cfg->ssid_list = request->ssids;
2005
2006         if (request->ie && request->ie_len) {
2007                 offset = 0;
2008                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2009                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2010                                 continue;
2011                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2012                         ie = (struct ieee_types_header *)(request->ie + offset);
2013                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2014                         offset += sizeof(*ie) + ie->len;
2015
2016                         if (offset >= request->ie_len)
2017                                 break;
2018                 }
2019         }
2020
2021         for (i = 0; i < min_t(u32, request->n_channels,
2022                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2023                 chan = request->channels[i];
2024                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2025                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2026
2027                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2028                         user_scan_cfg->chan_list[i].scan_type =
2029                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2030                 else
2031                         user_scan_cfg->chan_list[i].scan_type =
2032                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2033
2034                 user_scan_cfg->chan_list[i].scan_time = 0;
2035         }
2036
2037         if (priv->adapter->scan_chan_gap_enabled &&
2038             mwifiex_is_any_intf_active(priv))
2039                 user_scan_cfg->scan_chan_gap =
2040                                               priv->adapter->scan_chan_gap_time;
2041
2042         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2043         kfree(user_scan_cfg);
2044         if (ret) {
2045                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2046                 priv->scan_aborting = false;
2047                 priv->scan_request = NULL;
2048                 return ret;
2049         }
2050
2051         if (request->ie && request->ie_len) {
2052                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2053                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2054                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2055                                 memset(&priv->vs_ie[i].ie, 0,
2056                                        MWIFIEX_MAX_VSIE_LEN);
2057                         }
2058                 }
2059         }
2060         return 0;
2061 }
2062
2063 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2064                                    struct mwifiex_private *priv)
2065 {
2066         struct mwifiex_adapter *adapter = priv->adapter;
2067
2068         vht_info->vht_supported = true;
2069
2070         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2071         /* Update MCS support for VHT */
2072         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2073                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2074         vht_info->vht_mcs.rx_highest = 0;
2075         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2076                                 adapter->hw_dot_11ac_mcs_support >> 16);
2077         vht_info->vht_mcs.tx_highest = 0;
2078 }
2079
2080 /*
2081  * This function sets up the CFG802.11 specific HT capability fields
2082  * with default values.
2083  *
2084  * The following default values are set -
2085  *      - HT Supported = True
2086  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2087  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2088  *      - HT Capabilities supported by firmware
2089  *      - MCS information, Rx mask = 0xff
2090  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2091  */
2092 static void
2093 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2094                       struct mwifiex_private *priv)
2095 {
2096         int rx_mcs_supp;
2097         struct ieee80211_mcs_info mcs_set;
2098         u8 *mcs = (u8 *)&mcs_set;
2099         struct mwifiex_adapter *adapter = priv->adapter;
2100
2101         ht_info->ht_supported = true;
2102         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2103         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2104
2105         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2106
2107         /* Fill HT capability information */
2108         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2109                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2110         else
2111                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2112
2113         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2114                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2115         else
2116                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2117
2118         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2119                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2120         else
2121                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2122
2123         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2124                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2125         else
2126                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2127
2128         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2129                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2130         else
2131                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2132
2133         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2134                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2135         else
2136                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2137
2138         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2139                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2140         else
2141                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2142
2143         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2144                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2145         else
2146                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2147
2148         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2149         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2150
2151         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2152         /* Set MCS for 1x1/2x2 */
2153         memset(mcs, 0xff, rx_mcs_supp);
2154         /* Clear all the other values */
2155         memset(&mcs[rx_mcs_supp], 0,
2156                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2157         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2158             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2159                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2160                 SETHT_MCS32(mcs_set.rx_mask);
2161
2162         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2163
2164         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2165 }
2166
2167 /*
2168  *  create a new virtual interface with the given name
2169  */
2170 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2171                                               const char *name,
2172                                               enum nl80211_iftype type,
2173                                               u32 *flags,
2174                                               struct vif_params *params)
2175 {
2176         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2177         struct mwifiex_private *priv;
2178         struct net_device *dev;
2179         void *mdev_priv;
2180
2181         if (!adapter)
2182                 return ERR_PTR(-EFAULT);
2183
2184         switch (type) {
2185         case NL80211_IFTYPE_UNSPECIFIED:
2186         case NL80211_IFTYPE_STATION:
2187         case NL80211_IFTYPE_ADHOC:
2188                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2189                 if (priv->bss_mode) {
2190                         wiphy_err(wiphy,
2191                                   "cannot create multiple sta/adhoc ifaces\n");
2192                         return ERR_PTR(-EINVAL);
2193                 }
2194
2195                 priv->wdev.wiphy = wiphy;
2196                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2197
2198                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2199                         priv->bss_mode = NL80211_IFTYPE_STATION;
2200                 else
2201                         priv->bss_mode = type;
2202
2203                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2204                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2205                 priv->bss_priority = 0;
2206                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2207                 priv->bss_num = 0;
2208
2209                 break;
2210         case NL80211_IFTYPE_AP:
2211                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2212
2213                 if (priv->bss_mode) {
2214                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2215                         return ERR_PTR(-EINVAL);
2216                 }
2217
2218                 priv->wdev.wiphy = wiphy;
2219                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2220
2221                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2222                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2223                 priv->bss_priority = 0;
2224                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2225                 priv->bss_started = 0;
2226                 priv->bss_num = 0;
2227                 priv->bss_mode = type;
2228
2229                 break;
2230         case NL80211_IFTYPE_P2P_CLIENT:
2231                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2232
2233                 if (priv->bss_mode) {
2234                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2235                         return ERR_PTR(-EINVAL);
2236                 }
2237
2238                 priv->wdev.wiphy = wiphy;
2239
2240                 /* At start-up, wpa_supplicant tries to change the interface
2241                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2242                  */
2243                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2244                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2245
2246                 /* Setting bss_type to P2P tells firmware that this interface
2247                  * is receiving P2P peers found during find phase and doing
2248                  * action frame handshake.
2249                  */
2250                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2251
2252                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2253                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2254                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2255                 priv->bss_started = 0;
2256                 priv->bss_num = 0;
2257
2258                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2259                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2260                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2261                         return ERR_PTR(-EFAULT);
2262                 }
2263
2264                 break;
2265         default:
2266                 wiphy_err(wiphy, "type not supported\n");
2267                 return ERR_PTR(-EINVAL);
2268         }
2269
2270         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2271                                NET_NAME_UNKNOWN, ether_setup,
2272                                IEEE80211_NUM_ACS, 1);
2273         if (!dev) {
2274                 wiphy_err(wiphy, "no memory available for netdevice\n");
2275                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2276                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2277                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2278                 return ERR_PTR(-ENOMEM);
2279         }
2280
2281         mwifiex_init_priv_params(priv, dev);
2282         priv->netdev = dev;
2283
2284         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2285         if (adapter->is_hw_11ac_capable)
2286                 mwifiex_setup_vht_caps(
2287                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2288
2289         if (adapter->config_bands & BAND_A)
2290                 mwifiex_setup_ht_caps(
2291                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2292
2293         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2294                 mwifiex_setup_vht_caps(
2295                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2296
2297         dev_net_set(dev, wiphy_net(wiphy));
2298         dev->ieee80211_ptr = &priv->wdev;
2299         dev->ieee80211_ptr->iftype = priv->bss_mode;
2300         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2301         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2302
2303         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2304         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2305         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2306         dev->ethtool_ops = &mwifiex_ethtool_ops;
2307
2308         mdev_priv = netdev_priv(dev);
2309         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2310
2311         SET_NETDEV_DEV(dev, adapter->dev);
2312
2313         /* Register network device */
2314         if (register_netdevice(dev)) {
2315                 wiphy_err(wiphy, "cannot register virtual network device\n");
2316                 free_netdev(dev);
2317                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2318                 priv->netdev = NULL;
2319                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2320                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2321                 return ERR_PTR(-EFAULT);
2322         }
2323
2324         sema_init(&priv->async_sem, 1);
2325
2326         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2327
2328 #ifdef CONFIG_DEBUG_FS
2329         mwifiex_dev_debugfs_init(priv);
2330 #endif
2331
2332         return &priv->wdev;
2333 }
2334 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2335
2336 /*
2337  * del_virtual_intf: remove the virtual interface determined by dev
2338  */
2339 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2340 {
2341         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2342
2343 #ifdef CONFIG_DEBUG_FS
2344         mwifiex_dev_debugfs_remove(priv);
2345 #endif
2346
2347         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2348
2349         if (netif_carrier_ok(priv->netdev))
2350                 netif_carrier_off(priv->netdev);
2351
2352         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2353                 unregister_netdevice(wdev->netdev);
2354
2355         /* Clear the priv in adapter */
2356         priv->netdev->ieee80211_ptr = NULL;
2357         priv->netdev = NULL;
2358         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2359
2360         priv->media_connected = false;
2361
2362         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2363
2364         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2365             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2366                 kfree(priv->hist_data);
2367
2368         return 0;
2369 }
2370 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2371
2372 static bool
2373 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2374                              u8 max_byte_seq)
2375 {
2376         int j, k, valid_byte_cnt = 0;
2377         bool dont_care_byte = false;
2378
2379         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2380                 for (k = 0; k < 8; k++) {
2381                         if (pat->mask[j] & 1 << k) {
2382                                 memcpy(byte_seq + valid_byte_cnt,
2383                                        &pat->pattern[j * 8 + k], 1);
2384                                 valid_byte_cnt++;
2385                                 if (dont_care_byte)
2386                                         return false;
2387                         } else {
2388                                 if (valid_byte_cnt)
2389                                         dont_care_byte = true;
2390                         }
2391
2392                         if (valid_byte_cnt > max_byte_seq)
2393                                 return false;
2394                 }
2395         }
2396
2397         byte_seq[max_byte_seq] = valid_byte_cnt;
2398
2399         return true;
2400 }
2401
2402 #ifdef CONFIG_PM
2403 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
2404                                   struct cfg80211_wowlan *wowlan)
2405 {
2406         int i, filt_num = 0, ret = 0;
2407         bool first_pat = true;
2408         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2409         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2410         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2411         struct mwifiex_ds_mef_cfg mef_cfg;
2412         struct mwifiex_mef_entry *mef_entry;
2413
2414         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2415         if (!mef_entry)
2416                 return -ENOMEM;
2417
2418         memset(&mef_cfg, 0, sizeof(mef_cfg));
2419         mef_cfg.num_entries = 1;
2420         mef_cfg.mef_entry = mef_entry;
2421         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2422         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2423
2424         for (i = 0; i < wowlan->n_patterns; i++) {
2425                 memset(byte_seq, 0, sizeof(byte_seq));
2426                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2427                                         byte_seq,
2428                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
2429                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2430                         kfree(mef_entry);
2431                         return -EOPNOTSUPP;
2432                 }
2433
2434                 if (!wowlan->patterns[i].pkt_offset) {
2435                         if (!(byte_seq[0] & 0x01) &&
2436                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2437                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2438                                 continue;
2439                         } else if (is_broadcast_ether_addr(byte_seq)) {
2440                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2441                                 continue;
2442                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2443                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2444                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2445                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2446                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2447                                 continue;
2448                         }
2449                 }
2450
2451                 mef_entry->filter[filt_num].repeat = 1;
2452                 mef_entry->filter[filt_num].offset =
2453                         wowlan->patterns[i].pkt_offset;
2454                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2455                                 sizeof(byte_seq));
2456                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2457
2458                 if (first_pat)
2459                         first_pat = false;
2460                 else
2461                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2462
2463                 filt_num++;
2464         }
2465
2466         if (wowlan->magic_pkt) {
2467                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2468                 mef_entry->filter[filt_num].repeat = 16;
2469                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2470                                 ETH_ALEN);
2471                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2472                         ETH_ALEN;
2473                 mef_entry->filter[filt_num].offset = 28;
2474                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2475                 if (filt_num)
2476                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2477
2478                 filt_num++;
2479                 mef_entry->filter[filt_num].repeat = 16;
2480                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2481                                 ETH_ALEN);
2482                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2483                         ETH_ALEN;
2484                 mef_entry->filter[filt_num].offset = 56;
2485                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2486                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2487         }
2488
2489         if (!mef_cfg.criteria)
2490                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2491                         MWIFIEX_CRITERIA_UNICAST |
2492                         MWIFIEX_CRITERIA_MULTICAST;
2493
2494         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2495                         HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2496
2497         kfree(mef_entry);
2498         return ret;
2499 }
2500
2501 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2502                                     struct cfg80211_wowlan *wowlan)
2503 {
2504         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2505         struct mwifiex_ds_hs_cfg hs_cfg;
2506         int ret = 0;
2507         struct mwifiex_private *priv =
2508                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2509
2510         if (!wowlan) {
2511                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2512                 return 0;
2513         }
2514
2515         if (!priv->media_connected) {
2516                 dev_warn(adapter->dev,
2517                          "Can not configure WOWLAN in disconnected state\n");
2518                 return 0;
2519         }
2520
2521         if (wowlan->n_patterns || wowlan->magic_pkt) {
2522                 ret = mwifiex_set_mef_filter(priv, wowlan);
2523                 if (ret) {
2524                         dev_err(adapter->dev, "Failed to set MEF filter\n");
2525                         return ret;
2526                 }
2527         }
2528
2529         if (wowlan->disconnect) {
2530                 memset(&hs_cfg, 0, sizeof(hs_cfg));
2531                 hs_cfg.is_invoke_hostcmd = false;
2532                 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
2533                 hs_cfg.gpio = HS_CFG_GPIO_DEF;
2534                 hs_cfg.gap = HS_CFG_GAP_DEF;
2535                 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
2536                                             MWIFIEX_SYNC_CMD, &hs_cfg);
2537                 if (ret) {
2538                         dev_err(adapter->dev, "Failed to set HS params\n");
2539                         return ret;
2540                 }
2541         }
2542
2543         return ret;
2544 }
2545
2546 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2547 {
2548         return 0;
2549 }
2550
2551 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2552                                        bool enabled)
2553 {
2554         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2555
2556         device_set_wakeup_enable(adapter->dev, enabled);
2557 }
2558 #endif
2559
2560 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2561 {
2562         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2563         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2564         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2565
2566         if ((byte_seq[0] & 0x01) &&
2567             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2568                 return PACKET_TYPE_UNICAST;
2569         else if (!memcmp(byte_seq, bc_mac, 4))
2570                 return PACKET_TYPE_BROADCAST;
2571         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2572                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2573                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2574                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2575                 return PACKET_TYPE_MULTICAST;
2576
2577         return 0;
2578 }
2579
2580 static int
2581 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2582                                 struct cfg80211_coalesce_rules *crule,
2583                                 struct mwifiex_coalesce_rule *mrule)
2584 {
2585         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2586         struct filt_field_param *param;
2587         int i;
2588
2589         mrule->max_coalescing_delay = crule->delay;
2590
2591         param = mrule->params;
2592
2593         for (i = 0; i < crule->n_patterns; i++) {
2594                 memset(byte_seq, 0, sizeof(byte_seq));
2595                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2596                                                   byte_seq,
2597                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2598                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2599                         return -EOPNOTSUPP;
2600                 }
2601
2602                 if (!crule->patterns[i].pkt_offset) {
2603                         u8 pkt_type;
2604
2605                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2606                         if (pkt_type && mrule->pkt_type) {
2607                                 dev_err(priv->adapter->dev,
2608                                         "Multiple packet types not allowed\n");
2609                                 return -EOPNOTSUPP;
2610                         } else if (pkt_type) {
2611                                 mrule->pkt_type = pkt_type;
2612                                 continue;
2613                         }
2614                 }
2615
2616                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2617                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2618                 else
2619                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
2620
2621                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2622                 memcpy(param->operand_byte_stream, byte_seq,
2623                        param->operand_len);
2624                 param->offset = crule->patterns[i].pkt_offset;
2625                 param++;
2626
2627                 mrule->num_of_fields++;
2628         }
2629
2630         if (!mrule->pkt_type) {
2631                 dev_err(priv->adapter->dev,
2632                         "Packet type can not be determined\n");
2633                 return -EOPNOTSUPP;
2634         }
2635
2636         return 0;
2637 }
2638
2639 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2640                                          struct cfg80211_coalesce *coalesce)
2641 {
2642         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2643         int i, ret;
2644         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2645         struct mwifiex_private *priv =
2646                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2647
2648         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2649         if (!coalesce) {
2650                 dev_dbg(adapter->dev,
2651                         "Disable coalesce and reset all previous rules\n");
2652                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2653                                         HostCmd_ACT_GEN_SET, 0,
2654                                         &coalesce_cfg, true);
2655         }
2656
2657         coalesce_cfg.num_of_rules = coalesce->n_rules;
2658         for (i = 0; i < coalesce->n_rules; i++) {
2659                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2660                                                       &coalesce_cfg.rule[i]);
2661                 if (ret) {
2662                         dev_err(priv->adapter->dev,
2663                                 "Recheck the patterns provided for rule %d\n",
2664                                 i + 1);
2665                         return ret;
2666                 }
2667         }
2668
2669         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2670                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2671 }
2672
2673 /* cfg80211 ops handler for tdls_mgmt.
2674  * Function prepares TDLS action frame packets and forwards them to FW
2675  */
2676 static int
2677 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2678                            const u8 *peer, u8 action_code, u8 dialog_token,
2679                            u16 status_code, u32 peer_capability,
2680                            bool initiator, const u8 *extra_ies,
2681                            size_t extra_ies_len)
2682 {
2683         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2684         int ret;
2685
2686         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2687                 return -ENOTSUPP;
2688
2689         /* make sure we are in station mode and connected */
2690         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2691                 return -ENOTSUPP;
2692
2693         switch (action_code) {
2694         case WLAN_TDLS_SETUP_REQUEST:
2695                 dev_dbg(priv->adapter->dev,
2696                         "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2697                          status_code);
2698                 mwifiex_add_auto_tdls_peer(priv, peer);
2699                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2700                                                    dialog_token, status_code,
2701                                                    extra_ies, extra_ies_len);
2702                 break;
2703         case WLAN_TDLS_SETUP_RESPONSE:
2704                 mwifiex_add_auto_tdls_peer(priv, peer);
2705                 dev_dbg(priv->adapter->dev,
2706                         "Send TDLS Setup Response to %pM status_code=%d\n",
2707                         peer, status_code);
2708                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2709                                                    dialog_token, status_code,
2710                                                    extra_ies, extra_ies_len);
2711                 break;
2712         case WLAN_TDLS_SETUP_CONFIRM:
2713                 dev_dbg(priv->adapter->dev,
2714                         "Send TDLS Confirm to %pM status_code=%d\n", peer,
2715                         status_code);
2716                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2717                                                    dialog_token, status_code,
2718                                                    extra_ies, extra_ies_len);
2719                 break;
2720         case WLAN_TDLS_TEARDOWN:
2721                 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2722                         peer);
2723                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2724                                                    dialog_token, status_code,
2725                                                    extra_ies, extra_ies_len);
2726                 break;
2727         case WLAN_TDLS_DISCOVERY_REQUEST:
2728                 dev_dbg(priv->adapter->dev,
2729                         "Send TDLS Discovery Request to %pM\n", peer);
2730                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2731                                                    dialog_token, status_code,
2732                                                    extra_ies, extra_ies_len);
2733                 break;
2734         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2735                 dev_dbg(priv->adapter->dev,
2736                         "Send TDLS Discovery Response to %pM\n", peer);
2737                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2738                                                    dialog_token, status_code,
2739                                                    extra_ies, extra_ies_len);
2740                 break;
2741         default:
2742                 dev_warn(priv->adapter->dev,
2743                          "Unknown TDLS mgmt/action frame %pM\n", peer);
2744                 ret = -EINVAL;
2745                 break;
2746         }
2747
2748         return ret;
2749 }
2750
2751 static int
2752 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2753                            const u8 *peer, enum nl80211_tdls_operation action)
2754 {
2755         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2756
2757         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2758             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2759                 return -ENOTSUPP;
2760
2761         /* make sure we are in station mode and connected */
2762         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2763                 return -ENOTSUPP;
2764
2765         dev_dbg(priv->adapter->dev,
2766                 "TDLS peer=%pM, oper=%d\n", peer, action);
2767
2768         switch (action) {
2769         case NL80211_TDLS_ENABLE_LINK:
2770                 action = MWIFIEX_TDLS_ENABLE_LINK;
2771                 break;
2772         case NL80211_TDLS_DISABLE_LINK:
2773                 action = MWIFIEX_TDLS_DISABLE_LINK;
2774                 break;
2775         case NL80211_TDLS_TEARDOWN:
2776                 /* shouldn't happen!*/
2777                 dev_warn(priv->adapter->dev,
2778                          "tdls_oper: teardown from driver not supported\n");
2779                 return -EINVAL;
2780         case NL80211_TDLS_SETUP:
2781                 /* shouldn't happen!*/
2782                 dev_warn(priv->adapter->dev,
2783                          "tdls_oper: setup from driver not supported\n");
2784                 return -EINVAL;
2785         case NL80211_TDLS_DISCOVERY_REQ:
2786                 /* shouldn't happen!*/
2787                 dev_warn(priv->adapter->dev,
2788                          "tdls_oper: discovery from driver not supported\n");
2789                 return -EINVAL;
2790         default:
2791                 dev_err(priv->adapter->dev,
2792                         "tdls_oper: operation not supported\n");
2793                 return -ENOTSUPP;
2794         }
2795
2796         return mwifiex_tdls_oper(priv, peer, action);
2797 }
2798
2799 static int
2800 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2801                              const u8 *mac, struct station_parameters *params)
2802 {
2803         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2804
2805         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2806                 return -ENOTSUPP;
2807
2808         /* make sure we are in station mode and connected */
2809         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2810                 return -ENOTSUPP;
2811
2812         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2813 }
2814
2815 static int
2816 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2817                                 const u8 *mac,
2818                                 struct station_parameters *params)
2819 {
2820         int ret;
2821         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2822
2823         /* we support change_station handler only for TDLS peers*/
2824         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2825                 return -ENOTSUPP;
2826
2827         /* make sure we are in station mode and connected */
2828         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2829                 return -ENOTSUPP;
2830
2831         priv->sta_params = params;
2832
2833         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2834         priv->sta_params = NULL;
2835
2836         return ret;
2837 }
2838
2839 /* station cfg80211 operations */
2840 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2841         .add_virtual_intf = mwifiex_add_virtual_intf,
2842         .del_virtual_intf = mwifiex_del_virtual_intf,
2843         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2844         .scan = mwifiex_cfg80211_scan,
2845         .connect = mwifiex_cfg80211_connect,
2846         .disconnect = mwifiex_cfg80211_disconnect,
2847         .get_station = mwifiex_cfg80211_get_station,
2848         .dump_station = mwifiex_cfg80211_dump_station,
2849         .dump_survey = mwifiex_cfg80211_dump_survey,
2850         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2851         .join_ibss = mwifiex_cfg80211_join_ibss,
2852         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2853         .add_key = mwifiex_cfg80211_add_key,
2854         .del_key = mwifiex_cfg80211_del_key,
2855         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2856         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2857         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2858         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2859         .set_default_key = mwifiex_cfg80211_set_default_key,
2860         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2861         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2862         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2863         .start_ap = mwifiex_cfg80211_start_ap,
2864         .stop_ap = mwifiex_cfg80211_stop_ap,
2865         .change_beacon = mwifiex_cfg80211_change_beacon,
2866         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2867         .set_antenna = mwifiex_cfg80211_set_antenna,
2868         .del_station = mwifiex_cfg80211_del_station,
2869 #ifdef CONFIG_PM
2870         .suspend = mwifiex_cfg80211_suspend,
2871         .resume = mwifiex_cfg80211_resume,
2872         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2873 #endif
2874         .set_coalesce = mwifiex_cfg80211_set_coalesce,
2875         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2876         .tdls_oper = mwifiex_cfg80211_tdls_oper,
2877         .add_station = mwifiex_cfg80211_add_station,
2878         .change_station = mwifiex_cfg80211_change_station,
2879 };
2880
2881 #ifdef CONFIG_PM
2882 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2883         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
2884         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2885         .pattern_min_len = 1,
2886         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2887         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2888 };
2889 #endif
2890
2891 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2892 {
2893         if (!alpha2 || strlen(alpha2) != 2)
2894                 return false;
2895
2896         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2897                 return true;
2898
2899         return false;
2900 }
2901
2902 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2903         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2904         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2905         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2906         .pattern_min_len = 1,
2907         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2908         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2909 };
2910
2911 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
2912 {
2913         u32 n_channels_bg, n_channels_a = 0;
2914
2915         n_channels_bg = mwifiex_band_2ghz.n_channels;
2916
2917         if (adapter->config_bands & BAND_A)
2918                 n_channels_a = mwifiex_band_5ghz.n_channels;
2919
2920         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
2921         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
2922                                       adapter->num_in_chan_stats);
2923
2924         if (!adapter->chan_stats)
2925                 return -ENOMEM;
2926
2927         return 0;
2928 }
2929
2930 /*
2931  * This function registers the device with CFG802.11 subsystem.
2932  *
2933  * The function creates the wireless device/wiphy, populates it with
2934  * default parameters and handler function pointers, and finally
2935  * registers the device.
2936  */
2937
2938 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2939 {
2940         int ret;
2941         void *wdev_priv;
2942         struct wiphy *wiphy;
2943         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2944         u8 *country_code;
2945         u32 thr, retry;
2946
2947         /* create a new wiphy for use with cfg80211 */
2948         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2949                           sizeof(struct mwifiex_adapter *));
2950         if (!wiphy) {
2951                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2952                 return -ENOMEM;
2953         }
2954         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2955         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2956         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2957         wiphy->max_remain_on_channel_duration = 5000;
2958         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2959                                  BIT(NL80211_IFTYPE_ADHOC) |
2960                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2961                                  BIT(NL80211_IFTYPE_P2P_GO) |
2962                                  BIT(NL80211_IFTYPE_AP);
2963
2964         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2965         if (adapter->config_bands & BAND_A)
2966                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2967         else
2968                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2969
2970         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2971         wiphy->n_iface_combinations = 1;
2972
2973         /* Initialize cipher suits */
2974         wiphy->cipher_suites = mwifiex_cipher_suites;
2975         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2976
2977         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2978         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2979         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2980                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2981                         WIPHY_FLAG_AP_UAPSD |
2982                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2983
2984         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2985                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2986                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2987
2988 #ifdef CONFIG_PM
2989         wiphy->wowlan = &mwifiex_wowlan_support;
2990 #endif
2991
2992         wiphy->coalesce = &mwifiex_coalesce_support;
2993
2994         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2995                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2996                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2997
2998         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2999         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3000
3001         wiphy->features |= NL80211_FEATURE_HT_IBSS |
3002                            NL80211_FEATURE_INACTIVITY_TIMER |
3003                            NL80211_FEATURE_NEED_OBSS_SCAN;
3004
3005         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3006                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3007
3008         /* Reserve space for mwifiex specific private data for BSS */
3009         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3010
3011         wiphy->reg_notifier = mwifiex_reg_notifier;
3012
3013         /* Set struct mwifiex_adapter pointer in wiphy_priv */
3014         wdev_priv = wiphy_priv(wiphy);
3015         *(unsigned long *)wdev_priv = (unsigned long)adapter;
3016
3017         set_wiphy_dev(wiphy, priv->adapter->dev);
3018
3019         ret = wiphy_register(wiphy);
3020         if (ret < 0) {
3021                 dev_err(adapter->dev,
3022                         "%s: wiphy_register failed: %d\n", __func__, ret);
3023                 wiphy_free(wiphy);
3024                 return ret;
3025         }
3026
3027         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3028                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
3029                 regulatory_hint(wiphy, reg_alpha2);
3030         } else {
3031                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3032                 if (country_code)
3033                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
3034                                    country_code);
3035         }
3036
3037         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3038                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3039         wiphy->frag_threshold = thr;
3040         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3041                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3042         wiphy->rts_threshold = thr;
3043         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3044                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3045         wiphy->retry_short = (u8) retry;
3046         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3047                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3048         wiphy->retry_long = (u8) retry;
3049
3050         adapter->wiphy = wiphy;
3051         return ret;
3052 }