drivers/net/wireless/mwifiex/cfg80211.c

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22
  23 static char *reg_alpha2;
  24 module_param(reg_alpha2, charp, 0);
  25
  26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  27         {
  28                 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
  29                                    BIT(NL80211_IFTYPE_P2P_GO) |
  30                                    BIT(NL80211_IFTYPE_P2P_CLIENT),
  31         },
  32         {
  33                 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
  38         .limits = mwifiex_ap_sta_limits,
  39         .num_different_channels = 1,
  40         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  41         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  42         .beacon_int_infra_match = true,
  43 };
  44
  45 /*
  46  * This function maps the nl802.11 channel type into driver channel type.
  47  *
  48  * The mapping is as follows -
  49  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  50  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  51  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  52  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  53  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  54  */
  55 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  56 {
  57         switch (chan_type) {
  58         case NL80211_CHAN_NO_HT:
  59         case NL80211_CHAN_HT20:
  60                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  61         case NL80211_CHAN_HT40PLUS:
  62                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  63         case NL80211_CHAN_HT40MINUS:
  64                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  65         default:
  66                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  67         }
  68 }
  69
  70 /*
  71  * This function checks whether WEP is set.
  72  */
  73 static int
  74 mwifiex_is_alg_wep(u32 cipher)
  75 {
  76         switch (cipher) {
  77         case WLAN_CIPHER_SUITE_WEP40:
  78         case WLAN_CIPHER_SUITE_WEP104:
  79                 return 1;
  80         default:
  81                 break;
  82         }
  83
  84         return 0;
  85 }
  86
  87 /*
  88  * This function retrieves the private structure from kernel wiphy structure.
  89  */
  90 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
  91 {
  92         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
  93 }
  94
  95 /*
  96  * CFG802.11 operation handler to delete a network key.
  97  */
  98 static int
  99 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 100                          u8 key_index, bool pairwise, const u8 *mac_addr)
 101 {
 102         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 103         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 104         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 105
 106         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 107                 wiphy_err(wiphy, "deleting the crypto keys\n");
 108                 return -EFAULT;
 109         }
 110
 111         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 112         return 0;
 113 }
 114
 115 /*
 116  * This function forms an skb for management frame.
 117  */
 118 static int
 119 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 120 {
 121         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 122         u16 pkt_len;
 123         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 124
 125         pkt_len = len + ETH_ALEN;
 126
 127         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 128                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 129         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 130
 131         memcpy(skb_push(skb, sizeof(tx_control)),
 132                &tx_control, sizeof(tx_control));
 133
 134         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 135
 136         /* Add packet data and address4 */
 137         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 138                sizeof(struct ieee80211_hdr_3addr));
 139         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 140         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 141                buf + sizeof(struct ieee80211_hdr_3addr),
 142                len - sizeof(struct ieee80211_hdr_3addr));
 143
 144         skb->priority = LOW_PRIO_TID;
 145         __net_timestamp(skb);
 146
 147         return 0;
 148 }
 149
 150 /*
 151  * CFG802.11 operation handler to transmit a management frame.
 152  */
 153 static int
 154 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 155                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 156 {
 157         const u8 *buf = params->buf;
 158         size_t len = params->len;
 159         struct sk_buff *skb;
 160         u16 pkt_len;
 161         const struct ieee80211_mgmt *mgmt;
 162         struct mwifiex_txinfo *tx_info;
 163         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 164
 165         if (!buf || !len) {
 166                 wiphy_err(wiphy, "invalid buffer and length\n");
 167                 return -EFAULT;
 168         }
 169
 170         mgmt = (const struct ieee80211_mgmt *)buf;
 171         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 172             ieee80211_is_probe_resp(mgmt->frame_control)) {
 173                 /* Since we support offload probe resp, we need to skip probe
 174                  * resp in AP or GO mode */
 175                 wiphy_dbg(wiphy,
 176                           "info: skip to send probe resp in AP or GO mode\n");
 177                 return 0;
 178         }
 179
 180         pkt_len = len + ETH_ALEN;
 181         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 182                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 183                             pkt_len + sizeof(pkt_len));
 184
 185         if (!skb) {
 186                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 187                 return -ENOMEM;
 188         }
 189
 190         tx_info = MWIFIEX_SKB_TXCB(skb);
 191         memset(tx_info, 0, sizeof(*tx_info));
 192         tx_info->bss_num = priv->bss_num;
 193         tx_info->bss_type = priv->bss_type;
 194         tx_info->pkt_len = pkt_len;
 195
 196         mwifiex_form_mgmt_frame(skb, buf, len);
 197         *cookie = prandom_u32() | 1;
 198
 199         if (ieee80211_is_action(mgmt->frame_control))
 200                 skb = mwifiex_clone_skb_for_tx_status(priv,
 201                                                       skb,
 202                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 203         else
 204                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 205                                         GFP_ATOMIC);
 206
 207         mwifiex_queue_tx_pkt(priv, skb);
 208
 209         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 210         return 0;
 211 }
 212
 213 /*
 214  * CFG802.11 operation handler to register a mgmt frame.
 215  */
 216 static void
 217 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 218                                      struct wireless_dev *wdev,
 219                                      u16 frame_type, bool reg)
 220 {
 221         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 222         u32 mask;
 223
 224         if (reg)
 225                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 226         else
 227                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 228
 229         if (mask != priv->mgmt_frame_mask) {
 230                 priv->mgmt_frame_mask = mask;
 231                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 232                                  HostCmd_ACT_GEN_SET, 0,
 233                                  &priv->mgmt_frame_mask, false);
 234                 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 235         }
 236 }
 237
 238 /*
 239  * CFG802.11 operation handler to remain on channel.
 240  */
 241 static int
 242 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 243                                    struct wireless_dev *wdev,
 244                                    struct ieee80211_channel *chan,
 245                                    unsigned int duration, u64 *cookie)
 246 {
 247         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 248         int ret;
 249
 250         if (!chan || !cookie) {
 251                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 252                 return -EINVAL;
 253         }
 254
 255         if (priv->roc_cfg.cookie) {
 256                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n",
 257                           priv->roc_cfg.cookie);
 258                 return -EBUSY;
 259         }
 260
 261         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 262                                          duration);
 263
 264         if (!ret) {
 265                 *cookie = prandom_u32() | 1;
 266                 priv->roc_cfg.cookie = *cookie;
 267                 priv->roc_cfg.chan = *chan;
 268
 269                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 270                                           duration, GFP_ATOMIC);
 271
 272                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 273         }
 274
 275         return ret;
 276 }
 277
 278 /*
 279  * CFG802.11 operation handler to cancel remain on channel.
 280  */
 281 static int
 282 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 283                                           struct wireless_dev *wdev, u64 cookie)
 284 {
 285         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 286         int ret;
 287
 288         if (cookie != priv->roc_cfg.cookie)
 289                 return -ENOENT;
 290
 291         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 292                                          &priv->roc_cfg.chan, 0);
 293
 294         if (!ret) {
 295                 cfg80211_remain_on_channel_expired(wdev, cookie,
 296                                                    &priv->roc_cfg.chan,
 297                                                    GFP_ATOMIC);
 298
 299                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 300
 301                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 302         }
 303
 304         return ret;
 305 }
 306
 307 /*
 308  * CFG802.11 operation handler to set Tx power.
 309  */
 310 static int
 311 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 312                               struct wireless_dev *wdev,
 313                               enum nl80211_tx_power_setting type,
 314                               int mbm)
 315 {
 316         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 317         struct mwifiex_private *priv;
 318         struct mwifiex_power_cfg power_cfg;
 319         int dbm = MBM_TO_DBM(mbm);
 320
 321         if (type == NL80211_TX_POWER_FIXED) {
 322                 power_cfg.is_power_auto = 0;
 323                 power_cfg.power_level = dbm;
 324         } else {
 325                 power_cfg.is_power_auto = 1;
 326         }
 327
 328         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 329
 330         return mwifiex_set_tx_power(priv, &power_cfg);
 331 }
 332
 333 /*
 334  * CFG802.11 operation handler to set Power Save option.
 335  *
 336  * The timeout value, if provided, is currently ignored.
 337  */
 338 static int
 339 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 340                                 struct net_device *dev,
 341                                 bool enabled, int timeout)
 342 {
 343         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 344         u32 ps_mode;
 345
 346         if (timeout)
 347                 wiphy_dbg(wiphy,
 348                           "info: ignore timeout value for IEEE Power Save\n");
 349
 350         ps_mode = enabled;
 351
 352         return mwifiex_drv_set_power(priv, &ps_mode);
 353 }
 354
 355 /*
 356  * CFG802.11 operation handler to set the default network key.
 357  */
 358 static int
 359 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 360                                  u8 key_index, bool unicast,
 361                                  bool multicast)
 362 {
 363         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 364
 365         /* Return if WEP key not configured */
 366         if (!priv->sec_info.wep_enabled)
 367                 return 0;
 368
 369         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 370                 priv->wep_key_curr_index = key_index;
 371         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 372                                       NULL, 0)) {
 373                 wiphy_err(wiphy, "set default Tx key index\n");
 374                 return -EFAULT;
 375         }
 376
 377         return 0;
 378 }
 379
 380 /*
 381  * CFG802.11 operation handler to add a network key.
 382  */
 383 static int
 384 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 385                          u8 key_index, bool pairwise, const u8 *mac_addr,
 386                          struct key_params *params)
 387 {
 388         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 389         struct mwifiex_wep_key *wep_key;
 390         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 391         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 392
 393         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 394             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 395              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 396                 if (params->key && params->key_len) {
 397                         wep_key = &priv->wep_key[key_index];
 398                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 399                         memcpy(wep_key->key_material, params->key,
 400                                params->key_len);
 401                         wep_key->key_index = key_index;
 402                         wep_key->key_length = params->key_len;
 403                         priv->sec_info.wep_enabled = 1;
 404                 }
 405                 return 0;
 406         }
 407
 408         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 409                                key_index, peer_mac, 0)) {
 410                 wiphy_err(wiphy, "crypto keys added\n");
 411                 return -EFAULT;
 412         }
 413
 414         return 0;
 415 }
 416
 417 /*
 418  * This function sends domain information to the firmware.
 419  *
 420  * The following information are passed to the firmware -
 421  *      - Country codes
 422  *      - Sub bands (first channel, number of channels, maximum Tx power)
 423  */
 424 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 425 {
 426         u8 no_of_triplet = 0;
 427         struct ieee80211_country_ie_triplet *t;
 428         u8 no_of_parsed_chan = 0;
 429         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 430         u8 i, flag = 0;
 431         enum ieee80211_band band;
 432         struct ieee80211_supported_band *sband;
 433         struct ieee80211_channel *ch;
 434         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 435         struct mwifiex_private *priv;
 436         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 437
 438         /* Set country code */
 439         domain_info->country_code[0] = adapter->country_code[0];
 440         domain_info->country_code[1] = adapter->country_code[1];
 441         domain_info->country_code[2] = ' ';
 442
 443         band = mwifiex_band_to_radio_type(adapter->config_bands);
 444         if (!wiphy->bands[band]) {
 445                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 446                 return -1;
 447         }
 448
 449         sband = wiphy->bands[band];
 450
 451         for (i = 0; i < sband->n_channels ; i++) {
 452                 ch = &sband->channels[i];
 453                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 454                         continue;
 455
 456                 if (!flag) {
 457                         flag = 1;
 458                         first_chan = (u32) ch->hw_value;
 459                         next_chan = first_chan;
 460                         max_pwr = ch->max_power;
 461                         no_of_parsed_chan = 1;
 462                         continue;
 463                 }
 464
 465                 if (ch->hw_value == next_chan + 1 &&
 466                     ch->max_power == max_pwr) {
 467                         next_chan++;
 468                         no_of_parsed_chan++;
 469                 } else {
 470                         t = &domain_info->triplet[no_of_triplet];
 471                         t->chans.first_channel = first_chan;
 472                         t->chans.num_channels = no_of_parsed_chan;
 473                         t->chans.max_power = max_pwr;
 474                         no_of_triplet++;
 475                         first_chan = (u32) ch->hw_value;
 476                         next_chan = first_chan;
 477                         max_pwr = ch->max_power;
 478                         no_of_parsed_chan = 1;
 479                 }
 480         }
 481
 482         if (flag) {
 483                 t = &domain_info->triplet[no_of_triplet];
 484                 t->chans.first_channel = first_chan;
 485                 t->chans.num_channels = no_of_parsed_chan;
 486                 t->chans.max_power = max_pwr;
 487                 no_of_triplet++;
 488         }
 489
 490         domain_info->no_of_triplet = no_of_triplet;
 491
 492         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 493
 494         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 495                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 496                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 497                 return -1;
 498         }
 499
 500         return 0;
 501 }
 502
 503 /*
 504  * CFG802.11 regulatory domain callback function.
 505  *
 506  * This function is called when the regulatory domain is changed due to the
 507  * following reasons -
 508  *      - Set by driver
 509  *      - Set by system core
 510  *      - Set by user
 511  *      - Set bt Country IE
 512  */
 513 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 514                                  struct regulatory_request *request)
 515 {
 516         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 517         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 518                                                         MWIFIEX_BSS_ROLE_ANY);
 519
 520         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 521                   request->alpha2[0], request->alpha2[1]);
 522
 523         switch (request->initiator) {
 524         case NL80211_REGDOM_SET_BY_DRIVER:
 525         case NL80211_REGDOM_SET_BY_CORE:
 526         case NL80211_REGDOM_SET_BY_USER:
 527         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 528                 break;
 529         default:
 530                 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
 531                           request->initiator);
 532                 return;
 533         }
 534
 535         /* Don't send world or same regdom info to firmware */
 536         if (strncmp(request->alpha2, "00", 2) &&
 537             strncmp(request->alpha2, adapter->country_code,
 538                     sizeof(request->alpha2))) {
 539                 memcpy(adapter->country_code, request->alpha2,
 540                        sizeof(request->alpha2));
 541                 mwifiex_send_domain_info_cmd_fw(wiphy);
 542                 mwifiex_dnld_txpwr_table(priv);
 543         }
 544 }
 545
 546 /*
 547  * This function sets the fragmentation threshold.
 548  *
 549  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 550  * and MWIFIEX_FRAG_MAX_VALUE.
 551  */
 552 static int
 553 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 554 {
 555         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 556             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 557                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 558
 559         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 560                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 561                                 &frag_thr, true);
 562 }
 563
 564 /*
 565  * This function sets the RTS threshold.
 566
 567  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 568  * and MWIFIEX_RTS_MAX_VALUE.
 569  */
 570 static int
 571 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 572 {
 573         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 574                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 575
 576         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 577                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 578                                 &rts_thr, true);
 579 }
 580
 581 /*
 582  * CFG802.11 operation handler to set wiphy parameters.
 583  *
 584  * This function can be used to set the RTS threshold and the
 585  * Fragmentation threshold of the driver.
 586  */
 587 static int
 588 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 589 {
 590         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 591         struct mwifiex_private *priv;
 592         struct mwifiex_uap_bss_param *bss_cfg;
 593         int ret, bss_started, i;
 594
 595         for (i = 0; i < adapter->priv_num; i++) {
 596                 priv = adapter->priv[i];
 597
 598                 switch (priv->bss_role) {
 599                 case MWIFIEX_BSS_ROLE_UAP:
 600                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 601                                           GFP_KERNEL);
 602                         if (!bss_cfg)
 603                                 return -ENOMEM;
 604
 605                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 606
 607                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 608                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 609                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 610                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 611                         if (changed & WIPHY_PARAM_RETRY_LONG)
 612                                 bss_cfg->retry_limit = wiphy->retry_long;
 613
 614                         bss_started = priv->bss_started;
 615
 616                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
 617                                                HostCmd_ACT_GEN_SET, 0,
 618                                                NULL, true);
 619                         if (ret) {
 620                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 621                                 kfree(bss_cfg);
 622                                 return ret;
 623                         }
 624
 625                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 626                                                HostCmd_ACT_GEN_SET,
 627                                                UAP_BSS_PARAMS_I, bss_cfg,
 628                                                false);
 629
 630                         kfree(bss_cfg);
 631
 632                         if (ret) {
 633                                 wiphy_err(wiphy, "Failed to set bss config\n");
 634                                 return ret;
 635                         }
 636
 637                         if (!bss_started)
 638                                 break;
 639
 640                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
 641                                                HostCmd_ACT_GEN_SET, 0,
 642                                                NULL, false);
 643                         if (ret) {
 644                                 wiphy_err(wiphy, "Failed to start BSS\n");
 645                                 return ret;
 646                         }
 647
 648                         break;
 649                 case MWIFIEX_BSS_ROLE_STA:
 650                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 651                                 ret = mwifiex_set_rts(priv,
 652                                                       wiphy->rts_threshold);
 653                                 if (ret)
 654                                         return ret;
 655                         }
 656                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 657                                 ret = mwifiex_set_frag(priv,
 658                                                        wiphy->frag_threshold);
 659                                 if (ret)
 660                                         return ret;
 661                         }
 662                         break;
 663                 }
 664         }
 665
 666         return 0;
 667 }
 668
 669 static int
 670 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 671 {
 672         u16 mode = P2P_MODE_DISABLE;
 673
 674         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 675                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 676
 677         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 678                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 679                 return -1;
 680
 681         return 0;
 682 }
 683
 684 /*
 685  * This function initializes the functionalities for P2P client.
 686  * The P2P client initialization sequence is:
 687  * disable -> device -> client
 688  */
 689 static int
 690 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 691 {
 692         u16 mode;
 693
 694         if (mwifiex_cfg80211_deinit_p2p(priv))
 695                 return -1;
 696
 697         mode = P2P_MODE_DEVICE;
 698         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 699                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 700                 return -1;
 701
 702         mode = P2P_MODE_CLIENT;
 703         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 704                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 705                 return -1;
 706
 707         return 0;
 708 }
 709
 710 /*
 711  * This function initializes the functionalities for P2P GO.
 712  * The P2P GO initialization sequence is:
 713  * disable -> device -> GO
 714  */
 715 static int
 716 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 717 {
 718         u16 mode;
 719
 720         if (mwifiex_cfg80211_deinit_p2p(priv))
 721                 return -1;
 722
 723         mode = P2P_MODE_DEVICE;
 724         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 725                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 726                 return -1;
 727
 728         mode = P2P_MODE_GO;
 729         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 730                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 731                 return -1;
 732
 733         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 734                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 735
 736         return 0;
 737 }
 738
 739 /*
 740  * CFG802.11 operation handler to change interface type.
 741  */
 742 static int
 743 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 744                                      struct net_device *dev,
 745                                      enum nl80211_iftype type, u32 *flags,
 746                                      struct vif_params *params)
 747 {
 748         int ret;
 749         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 750
 751         switch (dev->ieee80211_ptr->iftype) {
 752         case NL80211_IFTYPE_ADHOC:
 753                 switch (type) {
 754                 case NL80211_IFTYPE_STATION:
 755                         break;
 756                 case NL80211_IFTYPE_UNSPECIFIED:
 757                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 758                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 759                         return 0;
 760                 case NL80211_IFTYPE_AP:
 761                 default:
 762                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 763                                   dev->name, type);
 764                         return -EOPNOTSUPP;
 765                 }
 766                 break;
 767         case NL80211_IFTYPE_STATION:
 768                 switch (type) {
 769                 case NL80211_IFTYPE_ADHOC:
 770                         break;
 771                 case NL80211_IFTYPE_P2P_CLIENT:
 772                         if (mwifiex_cfg80211_init_p2p_client(priv))
 773                                 return -EFAULT;
 774                         dev->ieee80211_ptr->iftype = type;
 775                         return 0;
 776                 case NL80211_IFTYPE_P2P_GO:
 777                         if (mwifiex_cfg80211_init_p2p_go(priv))
 778                                 return -EFAULT;
 779                         dev->ieee80211_ptr->iftype = type;
 780                         return 0;
 781                 case NL80211_IFTYPE_UNSPECIFIED:
 782                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 783                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 784                         return 0;
 785                 case NL80211_IFTYPE_AP:
 786                 default:
 787                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 788                                   dev->name, type);
 789                         return -EOPNOTSUPP;
 790                 }
 791                 break;
 792         case NL80211_IFTYPE_AP:
 793                 switch (type) {
 794                 case NL80211_IFTYPE_UNSPECIFIED:
 795                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 796                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 797                         return 0;
 798                 case NL80211_IFTYPE_ADHOC:
 799                 case NL80211_IFTYPE_STATION:
 800                 default:
 801                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 802                                   dev->name, type);
 803                         return -EOPNOTSUPP;
 804                 }
 805                 break;
 806         case NL80211_IFTYPE_P2P_CLIENT:
 807         case NL80211_IFTYPE_P2P_GO:
 808                 switch (type) {
 809                 case NL80211_IFTYPE_STATION:
 810                         if (mwifiex_cfg80211_deinit_p2p(priv))
 811                                 return -EFAULT;
 812                         dev->ieee80211_ptr->iftype = type;
 813                         return 0;
 814                 default:
 815                         return -EOPNOTSUPP;
 816                 }
 817                 break;
 818         default:
 819                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 820                           dev->name, dev->ieee80211_ptr->iftype);
 821                 return -EOPNOTSUPP;
 822         }
 823
 824         dev->ieee80211_ptr->iftype = type;
 825         priv->bss_mode = type;
 826         mwifiex_deauthenticate(priv, NULL);
 827
 828         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 829
 830         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 831                                HostCmd_ACT_GEN_SET, 0, NULL, true);
 832
 833         return ret;
 834 }
 835
 836 static void
 837 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 838                      struct rate_info *rate)
 839 {
 840         struct mwifiex_adapter *adapter = priv->adapter;
 841
 842         if (adapter->is_hw_11ac_capable) {
 843                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 844                 if (tx_htinfo & BIT(0)) {
 845                         /* HT */
 846                         rate->mcs = priv->tx_rate;
 847                         rate->flags |= RATE_INFO_FLAGS_MCS;
 848                 }
 849                 if (tx_htinfo & BIT(1)) {
 850                         /* VHT */
 851                         rate->mcs = priv->tx_rate & 0x0F;
 852                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 853                 }
 854
 855                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 856                         /* HT or VHT */
 857                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 858                         case 0:
 859                                 /* This will be 20MHz */
 860                                 break;
 861                         case (BIT(2)):
 862                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 863                                 break;
 864                         case (BIT(3)):
 865                                 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 866                                 break;
 867                         case (BIT(3) | BIT(2)):
 868                                 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 869                                 break;
 870                         }
 871
 872                         if (tx_htinfo & BIT(4))
 873                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 874
 875                         if ((priv->tx_rate >> 4) == 1)
 876                                 rate->nss = 2;
 877                         else
 878                                 rate->nss = 1;
 879                 }
 880         } else {
 881                 /*
 882                  * Bit 0 in tx_htinfo indicates that current Tx rate
 883                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 884                  */
 885                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 886                         rate->mcs = priv->tx_rate;
 887                         rate->flags |= RATE_INFO_FLAGS_MCS;
 888                         if (tx_htinfo & BIT(1))
 889                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 890                         if (tx_htinfo & BIT(2))
 891                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 892                 }
 893         }
 894 }
 895
 896 /*
 897  * This function dumps the station information on a buffer.
 898  *
 899  * The following information are shown -
 900  *      - Total bytes transmitted
 901  *      - Total bytes received
 902  *      - Total packets transmitted
 903  *      - Total packets received
 904  *      - Signal quality level
 905  *      - Transmission rate
 906  */
 907 static int
 908 mwifiex_dump_station_info(struct mwifiex_private *priv,
 909                           struct station_info *sinfo)
 910 {
 911         u32 rate;
 912
 913         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 914                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 915                         STATION_INFO_TX_BITRATE |
 916                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 917
 918         /* Get signal information from the firmware */
 919         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
 920                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
 921                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 922                 return -EFAULT;
 923         }
 924
 925         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 926                 dev_err(priv->adapter->dev, "getting data rate\n");
 927                 return -EFAULT;
 928         }
 929
 930         /* Get DTIM period information from firmware */
 931         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 932                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 933                          &priv->dtim_period, true);
 934
 935         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 936
 937         sinfo->signal_avg = priv->bcn_rssi_avg;
 938         sinfo->rx_bytes = priv->stats.rx_bytes;
 939         sinfo->tx_bytes = priv->stats.tx_bytes;
 940         sinfo->rx_packets = priv->stats.rx_packets;
 941         sinfo->tx_packets = priv->stats.tx_packets;
 942         sinfo->signal = priv->bcn_rssi_avg;
 943         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 944         sinfo->txrate.legacy = rate * 5;
 945
 946         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 947                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 948                 sinfo->bss_param.flags = 0;
 949                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 950                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 951                         sinfo->bss_param.flags |=
 952                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 953                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 954                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 955                         sinfo->bss_param.flags |=
 956                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 957                 sinfo->bss_param.dtim_period = priv->dtim_period;
 958                 sinfo->bss_param.beacon_interval =
 959                         priv->curr_bss_params.bss_descriptor.beacon_period;
 960         }
 961
 962         return 0;
 963 }
 964
 965 /*
 966  * CFG802.11 operation handler to get station information.
 967  *
 968  * This function only works in connected mode, and dumps the
 969  * requested station information, if available.
 970  */
 971 static int
 972 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 973                              const u8 *mac, struct station_info *sinfo)
 974 {
 975         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 976
 977         if (!priv->media_connected)
 978                 return -ENOENT;
 979         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 980                 return -ENOENT;
 981
 982         return mwifiex_dump_station_info(priv, sinfo);
 983 }
 984
 985 /*
 986  * CFG802.11 operation handler to dump station information.
 987  */
 988 static int
 989 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 990                               int idx, u8 *mac, struct station_info *sinfo)
 991 {
 992         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 993
 994         if (!priv->media_connected || idx)
 995                 return -ENOENT;
 996
 997         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 998
 999         return mwifiex_dump_station_info(priv, sinfo);
1000 }
1001
1002 static int
1003 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1004                              int idx, struct survey_info *survey)
1005 {
1006         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1007         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1008         enum ieee80211_band band;
1009
1010         dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
1011
1012         memset(survey, 0, sizeof(struct survey_info));
1013
1014         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1015             priv->media_connected && idx == 0) {
1016                         u8 curr_bss_band = priv->curr_bss_params.band;
1017                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1018
1019                         band = mwifiex_band_to_radio_type(curr_bss_band);
1020                         survey->channel = ieee80211_get_channel(wiphy,
1021                                 ieee80211_channel_to_frequency(chan, band));
1022
1023                         if (priv->bcn_nf_last) {
1024                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1025                                 survey->noise = priv->bcn_nf_last;
1026                         }
1027                         return 0;
1028         }
1029
1030         if (idx >= priv->adapter->num_in_chan_stats)
1031                 return -ENOENT;
1032
1033         if (!pchan_stats[idx].cca_scan_dur)
1034                 return 0;
1035
1036         band = pchan_stats[idx].bandcfg;
1037         survey->channel = ieee80211_get_channel(wiphy,
1038             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1039         survey->filled = SURVEY_INFO_NOISE_DBM |
1040                 SURVEY_INFO_CHANNEL_TIME | SURVEY_INFO_CHANNEL_TIME_BUSY;
1041         survey->noise = pchan_stats[idx].noise;
1042         survey->channel_time = pchan_stats[idx].cca_scan_dur;
1043         survey->channel_time_busy = pchan_stats[idx].cca_busy_dur;
1044
1045         return 0;
1046 }
1047
1048 /* Supported rates to be advertised to the cfg80211 */
1049 static struct ieee80211_rate mwifiex_rates[] = {
1050         {.bitrate = 10, .hw_value = 2, },
1051         {.bitrate = 20, .hw_value = 4, },
1052         {.bitrate = 55, .hw_value = 11, },
1053         {.bitrate = 110, .hw_value = 22, },
1054         {.bitrate = 60, .hw_value = 12, },
1055         {.bitrate = 90, .hw_value = 18, },
1056         {.bitrate = 120, .hw_value = 24, },
1057         {.bitrate = 180, .hw_value = 36, },
1058         {.bitrate = 240, .hw_value = 48, },
1059         {.bitrate = 360, .hw_value = 72, },
1060         {.bitrate = 480, .hw_value = 96, },
1061         {.bitrate = 540, .hw_value = 108, },
1062 };
1063
1064 /* Channel definitions to be advertised to cfg80211 */
1065 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1066         {.center_freq = 2412, .hw_value = 1, },
1067         {.center_freq = 2417, .hw_value = 2, },
1068         {.center_freq = 2422, .hw_value = 3, },
1069         {.center_freq = 2427, .hw_value = 4, },
1070         {.center_freq = 2432, .hw_value = 5, },
1071         {.center_freq = 2437, .hw_value = 6, },
1072         {.center_freq = 2442, .hw_value = 7, },
1073         {.center_freq = 2447, .hw_value = 8, },
1074         {.center_freq = 2452, .hw_value = 9, },
1075         {.center_freq = 2457, .hw_value = 10, },
1076         {.center_freq = 2462, .hw_value = 11, },
1077         {.center_freq = 2467, .hw_value = 12, },
1078         {.center_freq = 2472, .hw_value = 13, },
1079         {.center_freq = 2484, .hw_value = 14, },
1080 };
1081
1082 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1083         .channels = mwifiex_channels_2ghz,
1084         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1085         .bitrates = mwifiex_rates,
1086         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1087 };
1088
1089 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1090         {.center_freq = 5040, .hw_value = 8, },
1091         {.center_freq = 5060, .hw_value = 12, },
1092         {.center_freq = 5080, .hw_value = 16, },
1093         {.center_freq = 5170, .hw_value = 34, },
1094         {.center_freq = 5190, .hw_value = 38, },
1095         {.center_freq = 5210, .hw_value = 42, },
1096         {.center_freq = 5230, .hw_value = 46, },
1097         {.center_freq = 5180, .hw_value = 36, },
1098         {.center_freq = 5200, .hw_value = 40, },
1099         {.center_freq = 5220, .hw_value = 44, },
1100         {.center_freq = 5240, .hw_value = 48, },
1101         {.center_freq = 5260, .hw_value = 52, },
1102         {.center_freq = 5280, .hw_value = 56, },
1103         {.center_freq = 5300, .hw_value = 60, },
1104         {.center_freq = 5320, .hw_value = 64, },
1105         {.center_freq = 5500, .hw_value = 100, },
1106         {.center_freq = 5520, .hw_value = 104, },
1107         {.center_freq = 5540, .hw_value = 108, },
1108         {.center_freq = 5560, .hw_value = 112, },
1109         {.center_freq = 5580, .hw_value = 116, },
1110         {.center_freq = 5600, .hw_value = 120, },
1111         {.center_freq = 5620, .hw_value = 124, },
1112         {.center_freq = 5640, .hw_value = 128, },
1113         {.center_freq = 5660, .hw_value = 132, },
1114         {.center_freq = 5680, .hw_value = 136, },
1115         {.center_freq = 5700, .hw_value = 140, },
1116         {.center_freq = 5745, .hw_value = 149, },
1117         {.center_freq = 5765, .hw_value = 153, },
1118         {.center_freq = 5785, .hw_value = 157, },
1119         {.center_freq = 5805, .hw_value = 161, },
1120         {.center_freq = 5825, .hw_value = 165, },
1121 };
1122
1123 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1124         .channels = mwifiex_channels_5ghz,
1125         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1126         .bitrates = mwifiex_rates + 4,
1127         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1128 };
1129
1130
1131 /* Supported crypto cipher suits to be advertised to cfg80211 */
1132 static const u32 mwifiex_cipher_suites[] = {
1133         WLAN_CIPHER_SUITE_WEP40,
1134         WLAN_CIPHER_SUITE_WEP104,
1135         WLAN_CIPHER_SUITE_TKIP,
1136         WLAN_CIPHER_SUITE_CCMP,
1137         WLAN_CIPHER_SUITE_AES_CMAC,
1138 };
1139
1140 /* Supported mgmt frame types to be advertised to cfg80211 */
1141 static const struct ieee80211_txrx_stypes
1142 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1143         [NL80211_IFTYPE_STATION] = {
1144                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1145                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1146                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1147                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1148         },
1149         [NL80211_IFTYPE_AP] = {
1150                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1151                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1152                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1153                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1154         },
1155         [NL80211_IFTYPE_P2P_CLIENT] = {
1156                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1157                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1158                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1159                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1160         },
1161         [NL80211_IFTYPE_P2P_GO] = {
1162                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1163                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1164                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1165                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1166         },
1167 };
1168
1169 /*
1170  * CFG802.11 operation handler for setting bit rates.
1171  *
1172  * Function configures data rates to firmware using bitrate mask
1173  * provided by cfg80211.
1174  */
1175 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1176                                 struct net_device *dev,
1177                                 const u8 *peer,
1178                                 const struct cfg80211_bitrate_mask *mask)
1179 {
1180         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1181         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1182         enum ieee80211_band band;
1183         struct mwifiex_adapter *adapter = priv->adapter;
1184
1185         if (!priv->media_connected) {
1186                 dev_err(adapter->dev,
1187                         "Can not set Tx data rate in disconnected state\n");
1188                 return -EINVAL;
1189         }
1190
1191         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1192
1193         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1194
1195         /* Fill HR/DSSS rates. */
1196         if (band == IEEE80211_BAND_2GHZ)
1197                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1198
1199         /* Fill OFDM rates */
1200         if (band == IEEE80211_BAND_2GHZ)
1201                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1202         else
1203                 bitmap_rates[1] = mask->control[band].legacy;
1204
1205         /* Fill HT MCS rates */
1206         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1207         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1208                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1209
1210        /* Fill VHT MCS rates */
1211         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1212                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1213                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1214                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1215         }
1216
1217         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1218                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1219 }
1220
1221 /*
1222  * CFG802.11 operation handler for connection quality monitoring.
1223  *
1224  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1225  * events to FW.
1226  */
1227 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1228                                                 struct net_device *dev,
1229                                                 s32 rssi_thold, u32 rssi_hyst)
1230 {
1231         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1232         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1233
1234         priv->cqm_rssi_thold = rssi_thold;
1235         priv->cqm_rssi_hyst = rssi_hyst;
1236
1237         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1238         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1239
1240         /* Subscribe/unsubscribe low and high rssi events */
1241         if (rssi_thold && rssi_hyst) {
1242                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1243                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1244                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1245                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1246                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1247                 return mwifiex_send_cmd(priv,
1248                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1249                                         0, 0, &subsc_evt, true);
1250         } else {
1251                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1252                 return mwifiex_send_cmd(priv,
1253                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1254                                         0, 0, &subsc_evt, true);
1255         }
1256
1257         return 0;
1258 }
1259
1260 /* cfg80211 operation handler for change_beacon.
1261  * Function retrieves and sets modified management IEs to FW.
1262  */
1263 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1264                                           struct net_device *dev,
1265                                           struct cfg80211_beacon_data *data)
1266 {
1267         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1268
1269         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1270                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1271                 return -EINVAL;
1272         }
1273
1274         if (!priv->bss_started) {
1275                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1276                 return -EINVAL;
1277         }
1278
1279         if (mwifiex_set_mgmt_ies(priv, data)) {
1280                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1281                 return -EFAULT;
1282         }
1283
1284         return 0;
1285 }
1286
1287 /* cfg80211 operation handler for del_station.
1288  * Function deauthenticates station which value is provided in mac parameter.
1289  * If mac is NULL/broadcast, all stations in associated station list are
1290  * deauthenticated. If bss is not started or there are no stations in
1291  * associated stations list, no action is taken.
1292  */
1293 static int
1294 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1295                              struct station_del_parameters *params)
1296 {
1297         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1298         struct mwifiex_sta_node *sta_node;
1299         u8 deauth_mac[ETH_ALEN];
1300         unsigned long flags;
1301
1302         if (list_empty(&priv->sta_list) || !priv->bss_started)
1303                 return 0;
1304
1305         if (!params->mac || is_broadcast_ether_addr(params->mac))
1306                 return 0;
1307
1308         wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac);
1309
1310         memset(deauth_mac, 0, ETH_ALEN);
1311
1312         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1313         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1314         if (sta_node)
1315                 ether_addr_copy(deauth_mac, params->mac);
1316         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1317
1318         if (is_valid_ether_addr(deauth_mac)) {
1319                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1320                                      HostCmd_ACT_GEN_SET, 0,
1321                                      deauth_mac, true))
1322                         return -1;
1323         }
1324
1325         return 0;
1326 }
1327
1328 static int
1329 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1330 {
1331         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1332         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1333                                                         MWIFIEX_BSS_ROLE_ANY);
1334         struct mwifiex_ds_ant_cfg ant_cfg;
1335
1336         if (!tx_ant || !rx_ant)
1337                 return -EOPNOTSUPP;
1338
1339         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1340                 /* Not a MIMO chip. User should provide specific antenna number
1341                  * for Tx/Rx path or enable all antennas for diversity
1342                  */
1343                 if (tx_ant != rx_ant)
1344                         return -EOPNOTSUPP;
1345
1346                 if ((tx_ant & (tx_ant - 1)) &&
1347                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1348                         return -EOPNOTSUPP;
1349
1350                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1351                     (priv->adapter->number_of_antenna > 1)) {
1352                         tx_ant = RF_ANTENNA_AUTO;
1353                         rx_ant = RF_ANTENNA_AUTO;
1354                 }
1355         } else {
1356                 struct ieee80211_sta_ht_cap *ht_info;
1357                 int rx_mcs_supp;
1358                 enum ieee80211_band band;
1359
1360                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1361                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1362                         if (adapter->is_hw_11ac_capable)
1363                                 adapter->usr_dot_11ac_mcs_support =
1364                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1365                 } else {
1366                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1367                         if (adapter->is_hw_11ac_capable)
1368                                 adapter->usr_dot_11ac_mcs_support =
1369                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1370                 }
1371
1372                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1373                         if (!adapter->wiphy->bands[band])
1374                                 continue;
1375
1376                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1377                         rx_mcs_supp =
1378                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1379                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1380                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1381                 }
1382         }
1383
1384         ant_cfg.tx_ant = tx_ant;
1385         ant_cfg.rx_ant = rx_ant;
1386
1387         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1388                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1389 }
1390
1391 /* cfg80211 operation handler for stop ap.
1392  * Function stops BSS running at uAP interface.
1393  */
1394 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1395 {
1396         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1397
1398         if (mwifiex_del_mgmt_ies(priv))
1399                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1400
1401         priv->ap_11n_enabled = 0;
1402
1403         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1404                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1405                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1406                 return -1;
1407         }
1408
1409         return 0;
1410 }
1411
1412 /* cfg80211 operation handler for start_ap.
1413  * Function sets beacon period, DTIM period, SSID and security into
1414  * AP config structure.
1415  * AP is configured with these settings and BSS is started.
1416  */
1417 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1418                                      struct net_device *dev,
1419                                      struct cfg80211_ap_settings *params)
1420 {
1421         struct mwifiex_uap_bss_param *bss_cfg;
1422         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1423         u8 config_bands = 0;
1424
1425         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1426                 return -1;
1427         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1428                 return -1;
1429
1430         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1431         if (!bss_cfg)
1432                 return -ENOMEM;
1433
1434         mwifiex_set_sys_config_invalid_data(bss_cfg);
1435
1436         if (params->beacon_interval)
1437                 bss_cfg->beacon_period = params->beacon_interval;
1438         if (params->dtim_period)
1439                 bss_cfg->dtim_period = params->dtim_period;
1440
1441         if (params->ssid && params->ssid_len) {
1442                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1443                 bss_cfg->ssid.ssid_len = params->ssid_len;
1444         }
1445
1446         switch (params->hidden_ssid) {
1447         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1448                 bss_cfg->bcast_ssid_ctl = 1;
1449                 break;
1450         case NL80211_HIDDEN_SSID_ZERO_LEN:
1451                 bss_cfg->bcast_ssid_ctl = 0;
1452                 break;
1453         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1454                 /* firmware doesn't support this type of hidden SSID */
1455         default:
1456                 kfree(bss_cfg);
1457                 return -EINVAL;
1458         }
1459
1460         bss_cfg->channel = ieee80211_frequency_to_channel(
1461                                 params->chandef.chan->center_freq);
1462
1463         /* Set appropriate bands */
1464         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1465                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1466                 config_bands = BAND_B | BAND_G;
1467
1468                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1469                         config_bands |= BAND_GN;
1470         } else {
1471                 bss_cfg->band_cfg = BAND_CONFIG_A;
1472                 config_bands = BAND_A;
1473
1474                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1475                         config_bands |= BAND_AN;
1476
1477                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1478                         config_bands |= BAND_AAC;
1479         }
1480
1481         if (!((config_bands | priv->adapter->fw_bands) &
1482               ~priv->adapter->fw_bands))
1483                 priv->adapter->config_bands = config_bands;
1484
1485         mwifiex_set_uap_rates(bss_cfg, params);
1486         mwifiex_send_domain_info_cmd_fw(wiphy);
1487
1488         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1489                 kfree(bss_cfg);
1490                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1491                 return -1;
1492         }
1493
1494         mwifiex_set_ht_params(priv, bss_cfg, params);
1495
1496         if (priv->adapter->is_hw_11ac_capable) {
1497                 mwifiex_set_vht_params(priv, bss_cfg, params);
1498                 mwifiex_set_vht_width(priv, params->chandef.width,
1499                                       priv->ap_11ac_enabled);
1500         }
1501
1502         if (priv->ap_11ac_enabled)
1503                 mwifiex_set_11ac_ba_params(priv);
1504         else
1505                 mwifiex_set_ba_params(priv);
1506
1507         mwifiex_set_wmm_params(priv, bss_cfg, params);
1508
1509         if (params->inactivity_timeout > 0) {
1510                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1511                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1512                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1513         }
1514
1515         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1516                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1517                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1518                 kfree(bss_cfg);
1519                 return -1;
1520         }
1521
1522         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1523                              HostCmd_ACT_GEN_SET,
1524                              UAP_BSS_PARAMS_I, bss_cfg, false)) {
1525                 wiphy_err(wiphy, "Failed to set the SSID\n");
1526                 kfree(bss_cfg);
1527                 return -1;
1528         }
1529
1530         kfree(bss_cfg);
1531
1532         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1533                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1534                 wiphy_err(wiphy, "Failed to start the BSS\n");
1535                 return -1;
1536         }
1537
1538         if (priv->sec_info.wep_enabled)
1539                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1540         else
1541                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1542
1543         if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1544                              HostCmd_ACT_GEN_SET, 0,
1545                              &priv->curr_pkt_filter, true))
1546                 return -1;
1547
1548         return 0;
1549 }
1550
1551 /*
1552  * CFG802.11 operation handler for disconnection request.
1553  *
1554  * This function does not work when there is already a disconnection
1555  * procedure going on.
1556  */
1557 static int
1558 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1559                             u16 reason_code)
1560 {
1561         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1562
1563         if (mwifiex_deauthenticate(priv, NULL))
1564                 return -EFAULT;
1565
1566         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1567                 " reason code %d\n", priv->cfg_bssid, reason_code);
1568
1569         memset(priv->cfg_bssid, 0, ETH_ALEN);
1570         priv->hs2_enabled = false;
1571
1572         return 0;
1573 }
1574
1575 /*
1576  * This function informs the CFG802.11 subsystem of a new IBSS.
1577  *
1578  * The following information are sent to the CFG802.11 subsystem
1579  * to register the new IBSS. If we do not register the new IBSS,
1580  * a kernel panic will result.
1581  *      - SSID
1582  *      - SSID length
1583  *      - BSSID
1584  *      - Channel
1585  */
1586 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1587 {
1588         struct ieee80211_channel *chan;
1589         struct mwifiex_bss_info bss_info;
1590         struct cfg80211_bss *bss;
1591         int ie_len;
1592         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1593         enum ieee80211_band band;
1594
1595         if (mwifiex_get_bss_info(priv, &bss_info))
1596                 return -1;
1597
1598         ie_buf[0] = WLAN_EID_SSID;
1599         ie_buf[1] = bss_info.ssid.ssid_len;
1600
1601         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1602                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1603         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1604
1605         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1606         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1607                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1608                                                        band));
1609
1610         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1611                                   CFG80211_BSS_FTYPE_UNKNOWN,
1612                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1613                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1614         cfg80211_put_bss(priv->wdev->wiphy, bss);
1615         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1616
1617         return 0;
1618 }
1619
1620 /*
1621  * This function connects with a BSS.
1622  *
1623  * This function handles both Infra and Ad-Hoc modes. It also performs
1624  * validity checking on the provided parameters, disconnects from the
1625  * current BSS (if any), sets up the association/scan parameters,
1626  * including security settings, and performs specific SSID scan before
1627  * trying to connect.
1628  *
1629  * For Infra mode, the function returns failure if the specified SSID
1630  * is not found in scan table. However, for Ad-Hoc mode, it can create
1631  * the IBSS if it does not exist. On successful completion in either case,
1632  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1633  */
1634 static int
1635 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1636                        const u8 *ssid, const u8 *bssid, int mode,
1637                        struct ieee80211_channel *channel,
1638                        struct cfg80211_connect_params *sme, bool privacy)
1639 {
1640         struct cfg80211_ssid req_ssid;
1641         int ret, auth_type = 0;
1642         struct cfg80211_bss *bss = NULL;
1643         u8 is_scanning_required = 0;
1644
1645         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1646
1647         req_ssid.ssid_len = ssid_len;
1648         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1649                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1650                 return -EINVAL;
1651         }
1652
1653         memcpy(req_ssid.ssid, ssid, ssid_len);
1654         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1655                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1656                 return -EINVAL;
1657         }
1658
1659         /* As this is new association, clear locally stored
1660          * keys and security related flags */
1661         priv->sec_info.wpa_enabled = false;
1662         priv->sec_info.wpa2_enabled = false;
1663         priv->wep_key_curr_index = 0;
1664         priv->sec_info.encryption_mode = 0;
1665         priv->sec_info.is_authtype_auto = 0;
1666         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1667
1668         if (mode == NL80211_IFTYPE_ADHOC) {
1669                 /* "privacy" is set only for ad-hoc mode */
1670                 if (privacy) {
1671                         /*
1672                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1673                          * the firmware can find a matching network from the
1674                          * scan. The cfg80211 does not give us the encryption
1675                          * mode at this stage so just setting it to WEP here.
1676                          */
1677                         priv->sec_info.encryption_mode =
1678                                         WLAN_CIPHER_SUITE_WEP104;
1679                         priv->sec_info.authentication_mode =
1680                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1681                 }
1682
1683                 goto done;
1684         }
1685
1686         /* Now handle infra mode. "sme" is valid for infra mode only */
1687         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1688                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1689                 priv->sec_info.is_authtype_auto = 1;
1690         } else {
1691                 auth_type = sme->auth_type;
1692         }
1693
1694         if (sme->crypto.n_ciphers_pairwise) {
1695                 priv->sec_info.encryption_mode =
1696                                                 sme->crypto.ciphers_pairwise[0];
1697                 priv->sec_info.authentication_mode = auth_type;
1698         }
1699
1700         if (sme->crypto.cipher_group) {
1701                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1702                 priv->sec_info.authentication_mode = auth_type;
1703         }
1704         if (sme->ie)
1705                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1706
1707         if (sme->key) {
1708                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1709                         dev_dbg(priv->adapter->dev,
1710                                 "info: setting wep encryption"
1711                                 " with key len %d\n", sme->key_len);
1712                         priv->wep_key_curr_index = sme->key_idx;
1713                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1714                                                  sme->key_len, sme->key_idx,
1715                                                  NULL, 0);
1716                 }
1717         }
1718 done:
1719         /*
1720          * Scan entries are valid for some time (15 sec). So we can save one
1721          * active scan time if we just try cfg80211_get_bss first. If it fails
1722          * then request scan and cfg80211_get_bss() again for final output.
1723          */
1724         while (1) {
1725                 if (is_scanning_required) {
1726                         /* Do specific SSID scanning */
1727                         if (mwifiex_request_scan(priv, &req_ssid)) {
1728                                 dev_err(priv->adapter->dev, "scan error\n");
1729                                 return -EFAULT;
1730                         }
1731                 }
1732
1733                 /* Find the BSS we want using available scan results */
1734                 if (mode == NL80211_IFTYPE_ADHOC)
1735                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1736                                                bssid, ssid, ssid_len,
1737                                                WLAN_CAPABILITY_IBSS,
1738                                                WLAN_CAPABILITY_IBSS);
1739                 else
1740                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1741                                                bssid, ssid, ssid_len,
1742                                                WLAN_CAPABILITY_ESS,
1743                                                WLAN_CAPABILITY_ESS);
1744
1745                 if (!bss) {
1746                         if (is_scanning_required) {
1747                                 dev_warn(priv->adapter->dev,
1748                                          "assoc: requested bss not found in scan results\n");
1749                                 break;
1750                         }
1751                         is_scanning_required = 1;
1752                 } else {
1753                         dev_dbg(priv->adapter->dev,
1754                                 "info: trying to associate to '%s' bssid %pM\n",
1755                                 (char *) req_ssid.ssid, bss->bssid);
1756                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1757                         break;
1758                 }
1759         }
1760
1761         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1762         if (ret)
1763                 return ret;
1764
1765         if (mode == NL80211_IFTYPE_ADHOC) {
1766                 /* Inform the BSS information to kernel, otherwise
1767                  * kernel will give a panic after successful assoc */
1768                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1769                         return -EFAULT;
1770         }
1771
1772         return ret;
1773 }
1774
1775 /*
1776  * CFG802.11 operation handler for association request.
1777  *
1778  * This function does not work when the current mode is set to Ad-Hoc, or
1779  * when there is already an association procedure going on. The given BSS
1780  * information is used to associate.
1781  */
1782 static int
1783 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1784                          struct cfg80211_connect_params *sme)
1785 {
1786         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1787         int ret;
1788
1789         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1790                 wiphy_err(wiphy,
1791                           "%s: reject infra assoc request in non-STA role\n",
1792                           dev->name);
1793                 return -EINVAL;
1794         }
1795
1796         if (priv->wdev && priv->wdev->current_bss) {
1797                 wiphy_warn(wiphy, "%s: already connected\n", dev->name);
1798                 return -EALREADY;
1799         }
1800
1801         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1802                   (char *) sme->ssid, sme->bssid);
1803
1804         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1805                                      priv->bss_mode, sme->channel, sme, 0);
1806         if (!ret) {
1807                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1808                                         NULL, 0, WLAN_STATUS_SUCCESS,
1809                                         GFP_KERNEL);
1810                 dev_dbg(priv->adapter->dev,
1811                         "info: associated to bssid %pM successfully\n",
1812                         priv->cfg_bssid);
1813                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
1814                     priv->adapter->auto_tdls &&
1815                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
1816                         mwifiex_setup_auto_tdls_timer(priv);
1817         } else {
1818                 dev_dbg(priv->adapter->dev,
1819                         "info: association to bssid %pM failed\n",
1820                         priv->cfg_bssid);
1821                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1822
1823                 if (ret > 0)
1824                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1825                                                 NULL, 0, NULL, 0, ret,
1826                                                 GFP_KERNEL);
1827                 else
1828                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1829                                                 NULL, 0, NULL, 0,
1830                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1831                                                 GFP_KERNEL);
1832         }
1833
1834         return 0;
1835 }
1836
1837 /*
1838  * This function sets following parameters for ibss network.
1839  *  -  channel
1840  *  -  start band
1841  *  -  11n flag
1842  *  -  secondary channel offset
1843  */
1844 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1845                                    struct cfg80211_ibss_params *params)
1846 {
1847         struct wiphy *wiphy = priv->wdev->wiphy;
1848         struct mwifiex_adapter *adapter = priv->adapter;
1849         int index = 0, i;
1850         u8 config_bands = 0;
1851
1852         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1853                 if (!params->basic_rates) {
1854                         config_bands = BAND_B | BAND_G;
1855                 } else {
1856                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1857                                 /*
1858                                  * Rates below 6 Mbps in the table are CCK
1859                                  * rates; 802.11b and from 6 they are OFDM;
1860                                  * 802.11G
1861                                  */
1862                                 if (mwifiex_rates[i].bitrate == 60) {
1863                                         index = 1 << i;
1864                                         break;
1865                                 }
1866                         }
1867
1868                         if (params->basic_rates < index) {
1869                                 config_bands = BAND_B;
1870                         } else {
1871                                 config_bands = BAND_G;
1872                                 if (params->basic_rates % index)
1873                                         config_bands |= BAND_B;
1874                         }
1875                 }
1876
1877                 if (cfg80211_get_chandef_type(&params->chandef) !=
1878                                                 NL80211_CHAN_NO_HT)
1879                         config_bands |= BAND_G | BAND_GN;
1880         } else {
1881                 if (cfg80211_get_chandef_type(&params->chandef) ==
1882                                                 NL80211_CHAN_NO_HT)
1883                         config_bands = BAND_A;
1884                 else
1885                         config_bands = BAND_AN | BAND_A;
1886         }
1887
1888         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1889                 adapter->config_bands = config_bands;
1890                 adapter->adhoc_start_band = config_bands;
1891
1892                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1893                         adapter->adhoc_11n_enabled = true;
1894                 else
1895                         adapter->adhoc_11n_enabled = false;
1896         }
1897
1898         adapter->sec_chan_offset =
1899                 mwifiex_chan_type_to_sec_chan_offset(
1900                         cfg80211_get_chandef_type(&params->chandef));
1901         priv->adhoc_channel = ieee80211_frequency_to_channel(
1902                                 params->chandef.chan->center_freq);
1903
1904         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1905                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1906
1907         return 0;
1908 }
1909
1910 /*
1911  * CFG802.11 operation handler to join an IBSS.
1912  *
1913  * This function does not work in any mode other than Ad-Hoc, or if
1914  * a join operation is already in progress.
1915  */
1916 static int
1917 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1918                            struct cfg80211_ibss_params *params)
1919 {
1920         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1921         int ret = 0;
1922
1923         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1924                 wiphy_err(wiphy, "request to join ibss received "
1925                                 "when station is not in ibss mode\n");
1926                 goto done;
1927         }
1928
1929         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1930                   (char *) params->ssid, params->bssid);
1931
1932         mwifiex_set_ibss_params(priv, params);
1933
1934         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1935                                      params->bssid, priv->bss_mode,
1936                                      params->chandef.chan, NULL,
1937                                      params->privacy);
1938 done:
1939         if (!ret) {
1940                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1941                                      params->chandef.chan, GFP_KERNEL);
1942                 dev_dbg(priv->adapter->dev,
1943                         "info: joined/created adhoc network with bssid"
1944                         " %pM successfully\n", priv->cfg_bssid);
1945         } else {
1946                 dev_dbg(priv->adapter->dev,
1947                         "info: failed creating/joining adhoc network\n");
1948         }
1949
1950         return ret;
1951 }
1952
1953 /*
1954  * CFG802.11 operation handler to leave an IBSS.
1955  *
1956  * This function does not work if a leave operation is
1957  * already in progress.
1958  */
1959 static int
1960 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1961 {
1962         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1963
1964         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1965                   priv->cfg_bssid);
1966         if (mwifiex_deauthenticate(priv, NULL))
1967                 return -EFAULT;
1968
1969         memset(priv->cfg_bssid, 0, ETH_ALEN);
1970
1971         return 0;
1972 }
1973
1974 /*
1975  * CFG802.11 operation handler for scan request.
1976  *
1977  * This function issues a scan request to the firmware based upon
1978  * the user specified scan configuration. On successfull completion,
1979  * it also informs the results.
1980  */
1981 static int
1982 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1983                       struct cfg80211_scan_request *request)
1984 {
1985         struct net_device *dev = request->wdev->netdev;
1986         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1987         int i, offset, ret;
1988         struct ieee80211_channel *chan;
1989         struct ieee_types_header *ie;
1990         struct mwifiex_user_scan_cfg *user_scan_cfg;
1991
1992         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1993
1994         /* Block scan request if scan operation or scan cleanup when interface
1995          * is disabled is in process
1996          */
1997         if (priv->scan_request || priv->scan_aborting) {
1998                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1999                 return -EBUSY;
2000         }
2001
2002         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2003         if (!user_scan_cfg)
2004                 return -ENOMEM;
2005
2006         priv->scan_request = request;
2007
2008         user_scan_cfg->num_ssids = request->n_ssids;
2009         user_scan_cfg->ssid_list = request->ssids;
2010
2011         if (request->ie && request->ie_len) {
2012                 offset = 0;
2013                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2014                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2015                                 continue;
2016                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2017                         ie = (struct ieee_types_header *)(request->ie + offset);
2018                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2019                         offset += sizeof(*ie) + ie->len;
2020
2021                         if (offset >= request->ie_len)
2022                                 break;
2023                 }
2024         }
2025
2026         for (i = 0; i < min_t(u32, request->n_channels,
2027                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2028                 chan = request->channels[i];
2029                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2030                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2031
2032                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2033                         user_scan_cfg->chan_list[i].scan_type =
2034                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2035                 else
2036                         user_scan_cfg->chan_list[i].scan_type =
2037                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2038
2039                 user_scan_cfg->chan_list[i].scan_time = 0;
2040         }
2041
2042         if (priv->adapter->scan_chan_gap_enabled &&
2043             mwifiex_is_any_intf_active(priv))
2044                 user_scan_cfg->scan_chan_gap =
2045                                               priv->adapter->scan_chan_gap_time;
2046
2047         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2048         kfree(user_scan_cfg);
2049         if (ret) {
2050                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2051                 priv->scan_aborting = false;
2052                 priv->scan_request = NULL;
2053                 return ret;
2054         }
2055
2056         if (request->ie && request->ie_len) {
2057                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2058                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2059                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2060                                 memset(&priv->vs_ie[i].ie, 0,
2061                                        MWIFIEX_MAX_VSIE_LEN);
2062                         }
2063                 }
2064         }
2065         return 0;
2066 }
2067
2068 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2069                                    struct mwifiex_private *priv)
2070 {
2071         struct mwifiex_adapter *adapter = priv->adapter;
2072
2073         vht_info->vht_supported = true;
2074
2075         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2076         /* Update MCS support for VHT */
2077         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2078                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2079         vht_info->vht_mcs.rx_highest = 0;
2080         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2081                                 adapter->hw_dot_11ac_mcs_support >> 16);
2082         vht_info->vht_mcs.tx_highest = 0;
2083 }
2084
2085 /*
2086  * This function sets up the CFG802.11 specific HT capability fields
2087  * with default values.
2088  *
2089  * The following default values are set -
2090  *      - HT Supported = True
2091  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2092  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2093  *      - HT Capabilities supported by firmware
2094  *      - MCS information, Rx mask = 0xff
2095  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2096  */
2097 static void
2098 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2099                       struct mwifiex_private *priv)
2100 {
2101         int rx_mcs_supp;
2102         struct ieee80211_mcs_info mcs_set;
2103         u8 *mcs = (u8 *)&mcs_set;
2104         struct mwifiex_adapter *adapter = priv->adapter;
2105
2106         ht_info->ht_supported = true;
2107         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2108         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2109
2110         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2111
2112         /* Fill HT capability information */
2113         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2114                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2115         else
2116                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2117
2118         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2119                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2120         else
2121                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2122
2123         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2124                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2125         else
2126                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2127
2128         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2129                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2130         else
2131                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2132
2133         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2134                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2135         else
2136                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2137
2138         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2139                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2140         else
2141                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2142
2143         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2144                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2145         else
2146                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2147
2148         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2149                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2150         else
2151                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2152
2153         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2154         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2155
2156         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2157         /* Set MCS for 1x1/2x2 */
2158         memset(mcs, 0xff, rx_mcs_supp);
2159         /* Clear all the other values */
2160         memset(&mcs[rx_mcs_supp], 0,
2161                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2162         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2163             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2164                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2165                 SETHT_MCS32(mcs_set.rx_mask);
2166
2167         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2168
2169         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2170 }
2171
2172 /*
2173  *  create a new virtual interface with the given name
2174  */
2175 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2176                                               const char *name,
2177                                               enum nl80211_iftype type,
2178                                               u32 *flags,
2179                                               struct vif_params *params)
2180 {
2181         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2182         struct mwifiex_private *priv;
2183         struct net_device *dev;
2184         void *mdev_priv;
2185         struct wireless_dev *wdev;
2186
2187         if (!adapter)
2188                 return ERR_PTR(-EFAULT);
2189
2190         switch (type) {
2191         case NL80211_IFTYPE_UNSPECIFIED:
2192         case NL80211_IFTYPE_STATION:
2193         case NL80211_IFTYPE_ADHOC:
2194                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2195                 if (priv->bss_mode) {
2196                         wiphy_err(wiphy,
2197                                   "cannot create multiple sta/adhoc ifaces\n");
2198                         return ERR_PTR(-EINVAL);
2199                 }
2200
2201                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2202                 if (!wdev)
2203                         return ERR_PTR(-ENOMEM);
2204
2205                 wdev->wiphy = wiphy;
2206                 priv->wdev = wdev;
2207                 wdev->iftype = NL80211_IFTYPE_STATION;
2208
2209                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2210                         priv->bss_mode = NL80211_IFTYPE_STATION;
2211                 else
2212                         priv->bss_mode = type;
2213
2214                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2215                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2216                 priv->bss_priority = 0;
2217                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2218                 priv->bss_num = 0;
2219
2220                 break;
2221         case NL80211_IFTYPE_AP:
2222                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2223
2224                 if (priv->bss_mode) {
2225                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2226                         return ERR_PTR(-EINVAL);
2227                 }
2228
2229                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2230                 if (!wdev)
2231                         return ERR_PTR(-ENOMEM);
2232
2233                 priv->wdev = wdev;
2234                 wdev->wiphy = wiphy;
2235                 wdev->iftype = NL80211_IFTYPE_AP;
2236
2237                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2238                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2239                 priv->bss_priority = 0;
2240                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2241                 priv->bss_started = 0;
2242                 priv->bss_num = 0;
2243                 priv->bss_mode = type;
2244
2245                 break;
2246         case NL80211_IFTYPE_P2P_CLIENT:
2247                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2248
2249                 if (priv->bss_mode) {
2250                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2251                         return ERR_PTR(-EINVAL);
2252                 }
2253
2254                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2255                 if (!wdev)
2256                         return ERR_PTR(-ENOMEM);
2257
2258                 priv->wdev = wdev;
2259                 wdev->wiphy = wiphy;
2260
2261                 /* At start-up, wpa_supplicant tries to change the interface
2262                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2263                  */
2264                 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2265                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2266
2267                 /* Setting bss_type to P2P tells firmware that this interface
2268                  * is receiving P2P peers found during find phase and doing
2269                  * action frame handshake.
2270                  */
2271                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2272
2273                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2274                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2275                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2276                 priv->bss_started = 0;
2277                 priv->bss_num = 0;
2278
2279                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2280                         wdev = ERR_PTR(-EFAULT);
2281                         goto done;
2282                 }
2283
2284                 break;
2285         default:
2286                 wiphy_err(wiphy, "type not supported\n");
2287                 return ERR_PTR(-EINVAL);
2288         }
2289
2290         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2291                                NET_NAME_UNKNOWN, ether_setup,
2292                                IEEE80211_NUM_ACS, 1);
2293         if (!dev) {
2294                 wiphy_err(wiphy, "no memory available for netdevice\n");
2295                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2296                 wdev = ERR_PTR(-ENOMEM);
2297                 goto done;
2298         }
2299
2300         mwifiex_init_priv_params(priv, dev);
2301         priv->netdev = dev;
2302
2303         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2304         if (adapter->is_hw_11ac_capable)
2305                 mwifiex_setup_vht_caps(
2306                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2307
2308         if (adapter->config_bands & BAND_A)
2309                 mwifiex_setup_ht_caps(
2310                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2311
2312         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2313                 mwifiex_setup_vht_caps(
2314                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2315
2316         dev_net_set(dev, wiphy_net(wiphy));
2317         dev->ieee80211_ptr = priv->wdev;
2318         dev->ieee80211_ptr->iftype = priv->bss_mode;
2319         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2320         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2321
2322         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2323         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2324         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2325         dev->ethtool_ops = &mwifiex_ethtool_ops;
2326
2327         mdev_priv = netdev_priv(dev);
2328         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2329
2330         SET_NETDEV_DEV(dev, adapter->dev);
2331
2332         /* Register network device */
2333         if (register_netdevice(dev)) {
2334                 wiphy_err(wiphy, "cannot register virtual network device\n");
2335                 free_netdev(dev);
2336                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2337                 priv->netdev = NULL;
2338                 wdev = ERR_PTR(-EFAULT);
2339                 goto done;
2340         }
2341
2342         sema_init(&priv->async_sem, 1);
2343
2344         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2345
2346 #ifdef CONFIG_DEBUG_FS
2347         mwifiex_dev_debugfs_init(priv);
2348 #endif
2349
2350 done:
2351         if (IS_ERR(wdev)) {
2352                 kfree(priv->wdev);
2353                 priv->wdev = NULL;
2354         }
2355
2356         return wdev;
2357 }
2358 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2359
2360 /*
2361  * del_virtual_intf: remove the virtual interface determined by dev
2362  */
2363 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2364 {
2365         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2366
2367 #ifdef CONFIG_DEBUG_FS
2368         mwifiex_dev_debugfs_remove(priv);
2369 #endif
2370
2371         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2372
2373         if (netif_carrier_ok(priv->netdev))
2374                 netif_carrier_off(priv->netdev);
2375
2376         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2377                 unregister_netdevice(wdev->netdev);
2378
2379         /* Clear the priv in adapter */
2380         priv->netdev->ieee80211_ptr = NULL;
2381         priv->netdev = NULL;
2382         kfree(wdev);
2383         priv->wdev = NULL;
2384
2385         priv->media_connected = false;
2386
2387         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2388
2389         return 0;
2390 }
2391 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2392
2393 static bool
2394 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2395                              u8 max_byte_seq)
2396 {
2397         int j, k, valid_byte_cnt = 0;
2398         bool dont_care_byte = false;
2399
2400         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2401                 for (k = 0; k < 8; k++) {
2402                         if (pat->mask[j] & 1 << k) {
2403                                 memcpy(byte_seq + valid_byte_cnt,
2404                                        &pat->pattern[j * 8 + k], 1);
2405                                 valid_byte_cnt++;
2406                                 if (dont_care_byte)
2407                                         return false;
2408                         } else {
2409                                 if (valid_byte_cnt)
2410                                         dont_care_byte = true;
2411                         }
2412
2413                         if (valid_byte_cnt > max_byte_seq)
2414                                 return false;
2415                 }
2416         }
2417
2418         byte_seq[max_byte_seq] = valid_byte_cnt;
2419
2420         return true;
2421 }
2422
2423 #ifdef CONFIG_PM
2424 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2425                                     struct cfg80211_wowlan *wowlan)
2426 {
2427         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2428         struct mwifiex_ds_mef_cfg mef_cfg;
2429         struct mwifiex_mef_entry *mef_entry;
2430         int i, filt_num = 0, ret;
2431         bool first_pat = true;
2432         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2433         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2434         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2435         struct mwifiex_private *priv =
2436                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2437
2438         if (!wowlan) {
2439                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2440                 return 0;
2441         }
2442
2443         if (!priv->media_connected) {
2444                 dev_warn(adapter->dev,
2445                          "Can not configure WOWLAN in disconnected state\n");
2446                 return 0;
2447         }
2448
2449         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2450         if (!mef_entry)
2451                 return -ENOMEM;
2452
2453         memset(&mef_cfg, 0, sizeof(mef_cfg));
2454         mef_cfg.num_entries = 1;
2455         mef_cfg.mef_entry = mef_entry;
2456         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2457         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2458
2459         for (i = 0; i < wowlan->n_patterns; i++) {
2460                 memset(byte_seq, 0, sizeof(byte_seq));
2461                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2462                                                   byte_seq,
2463                                                   MWIFIEX_MEF_MAX_BYTESEQ)) {
2464                         wiphy_err(wiphy, "Pattern not supported\n");
2465                         kfree(mef_entry);
2466                         return -EOPNOTSUPP;
2467                 }
2468
2469                 if (!wowlan->patterns[i].pkt_offset) {
2470                         if (!(byte_seq[0] & 0x01) &&
2471                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2472                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2473                                 continue;
2474                         } else if (is_broadcast_ether_addr(byte_seq)) {
2475                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2476                                 continue;
2477                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2478                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2479                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2480                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2481                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2482                                 continue;
2483                         }
2484                 }
2485
2486                 mef_entry->filter[filt_num].repeat = 1;
2487                 mef_entry->filter[filt_num].offset =
2488                                                 wowlan->patterns[i].pkt_offset;
2489                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2490                        sizeof(byte_seq));
2491                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2492
2493                 if (first_pat)
2494                         first_pat = false;
2495                 else
2496                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2497
2498                 filt_num++;
2499         }
2500
2501         if (wowlan->magic_pkt) {
2502                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2503                 mef_entry->filter[filt_num].repeat = 16;
2504                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2505                        ETH_ALEN);
2506                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2507                                                                 ETH_ALEN;
2508                 mef_entry->filter[filt_num].offset = 28;
2509                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2510                 if (filt_num)
2511                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2512
2513                 filt_num++;
2514                 mef_entry->filter[filt_num].repeat = 16;
2515                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2516                        ETH_ALEN);
2517                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2518                                                                 ETH_ALEN;
2519                 mef_entry->filter[filt_num].offset = 56;
2520                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2521                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2522         }
2523
2524         if (!mef_cfg.criteria)
2525                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2526                                    MWIFIEX_CRITERIA_UNICAST |
2527                                    MWIFIEX_CRITERIA_MULTICAST;
2528
2529         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2530                                HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2531
2532         kfree(mef_entry);
2533         return ret;
2534 }
2535
2536 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2537 {
2538         return 0;
2539 }
2540
2541 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2542                                        bool enabled)
2543 {
2544         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2545
2546         device_set_wakeup_enable(adapter->dev, enabled);
2547 }
2548 #endif
2549
2550 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2551 {
2552         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2553         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2554         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2555
2556         if ((byte_seq[0] & 0x01) &&
2557             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2558                 return PACKET_TYPE_UNICAST;
2559         else if (!memcmp(byte_seq, bc_mac, 4))
2560                 return PACKET_TYPE_BROADCAST;
2561         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2562                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2563                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2564                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2565                 return PACKET_TYPE_MULTICAST;
2566
2567         return 0;
2568 }
2569
2570 static int
2571 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2572                                 struct cfg80211_coalesce_rules *crule,
2573                                 struct mwifiex_coalesce_rule *mrule)
2574 {
2575         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2576         struct filt_field_param *param;
2577         int i;
2578
2579         mrule->max_coalescing_delay = crule->delay;
2580
2581         param = mrule->params;
2582
2583         for (i = 0; i < crule->n_patterns; i++) {
2584                 memset(byte_seq, 0, sizeof(byte_seq));
2585                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2586                                                   byte_seq,
2587                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2588                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2589                         return -EOPNOTSUPP;
2590                 }
2591
2592                 if (!crule->patterns[i].pkt_offset) {
2593                         u8 pkt_type;
2594
2595                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2596                         if (pkt_type && mrule->pkt_type) {
2597                                 dev_err(priv->adapter->dev,
2598                                         "Multiple packet types not allowed\n");
2599                                 return -EOPNOTSUPP;
2600                         } else if (pkt_type) {
2601                                 mrule->pkt_type = pkt_type;
2602                                 continue;
2603                         }
2604                 }
2605
2606                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2607                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2608                 else
2609                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
2610
2611                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2612                 memcpy(param->operand_byte_stream, byte_seq,
2613                        param->operand_len);
2614                 param->offset = crule->patterns[i].pkt_offset;
2615                 param++;
2616
2617                 mrule->num_of_fields++;
2618         }
2619
2620         if (!mrule->pkt_type) {
2621                 dev_err(priv->adapter->dev,
2622                         "Packet type can not be determined\n");
2623                 return -EOPNOTSUPP;
2624         }
2625
2626         return 0;
2627 }
2628
2629 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2630                                          struct cfg80211_coalesce *coalesce)
2631 {
2632         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2633         int i, ret;
2634         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2635         struct mwifiex_private *priv =
2636                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2637
2638         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2639         if (!coalesce) {
2640                 dev_dbg(adapter->dev,
2641                         "Disable coalesce and reset all previous rules\n");
2642                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2643                                         HostCmd_ACT_GEN_SET, 0,
2644                                         &coalesce_cfg, true);
2645         }
2646
2647         coalesce_cfg.num_of_rules = coalesce->n_rules;
2648         for (i = 0; i < coalesce->n_rules; i++) {
2649                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2650                                                       &coalesce_cfg.rule[i]);
2651                 if (ret) {
2652                         dev_err(priv->adapter->dev,
2653                                 "Recheck the patterns provided for rule %d\n",
2654                                 i + 1);
2655                         return ret;
2656                 }
2657         }
2658
2659         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2660                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2661 }
2662
2663 /* cfg80211 ops handler for tdls_mgmt.
2664  * Function prepares TDLS action frame packets and forwards them to FW
2665  */
2666 static int
2667 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2668                            const u8 *peer, u8 action_code, u8 dialog_token,
2669                            u16 status_code, u32 peer_capability,
2670                            bool initiator, const u8 *extra_ies,
2671                            size_t extra_ies_len)
2672 {
2673         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2674         int ret;
2675
2676         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2677                 return -ENOTSUPP;
2678
2679         /* make sure we are in station mode and connected */
2680         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2681                 return -ENOTSUPP;
2682
2683         switch (action_code) {
2684         case WLAN_TDLS_SETUP_REQUEST:
2685                 dev_dbg(priv->adapter->dev,
2686                         "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2687                          status_code);
2688                 mwifiex_add_auto_tdls_peer(priv, peer);
2689                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2690                                                    dialog_token, status_code,
2691                                                    extra_ies, extra_ies_len);
2692                 break;
2693         case WLAN_TDLS_SETUP_RESPONSE:
2694                 mwifiex_add_auto_tdls_peer(priv, peer);
2695                 dev_dbg(priv->adapter->dev,
2696                         "Send TDLS Setup Response to %pM status_code=%d\n",
2697                         peer, status_code);
2698                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2699                                                    dialog_token, status_code,
2700                                                    extra_ies, extra_ies_len);
2701                 break;
2702         case WLAN_TDLS_SETUP_CONFIRM:
2703                 dev_dbg(priv->adapter->dev,
2704                         "Send TDLS Confirm to %pM status_code=%d\n", peer,
2705                         status_code);
2706                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2707                                                    dialog_token, status_code,
2708                                                    extra_ies, extra_ies_len);
2709                 break;
2710         case WLAN_TDLS_TEARDOWN:
2711                 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2712                         peer);
2713                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2714                                                    dialog_token, status_code,
2715                                                    extra_ies, extra_ies_len);
2716                 break;
2717         case WLAN_TDLS_DISCOVERY_REQUEST:
2718                 dev_dbg(priv->adapter->dev,
2719                         "Send TDLS Discovery Request to %pM\n", peer);
2720                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2721                                                    dialog_token, status_code,
2722                                                    extra_ies, extra_ies_len);
2723                 break;
2724         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2725                 dev_dbg(priv->adapter->dev,
2726                         "Send TDLS Discovery Response to %pM\n", peer);
2727                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2728                                                    dialog_token, status_code,
2729                                                    extra_ies, extra_ies_len);
2730                 break;
2731         default:
2732                 dev_warn(priv->adapter->dev,
2733                          "Unknown TDLS mgmt/action frame %pM\n", peer);
2734                 ret = -EINVAL;
2735                 break;
2736         }
2737
2738         return ret;
2739 }
2740
2741 static int
2742 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2743                            const u8 *peer, enum nl80211_tdls_operation action)
2744 {
2745         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2746
2747         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2748             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2749                 return -ENOTSUPP;
2750
2751         /* make sure we are in station mode and connected */
2752         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2753                 return -ENOTSUPP;
2754
2755         dev_dbg(priv->adapter->dev,
2756                 "TDLS peer=%pM, oper=%d\n", peer, action);
2757
2758         switch (action) {
2759         case NL80211_TDLS_ENABLE_LINK:
2760                 action = MWIFIEX_TDLS_ENABLE_LINK;
2761                 break;
2762         case NL80211_TDLS_DISABLE_LINK:
2763                 action = MWIFIEX_TDLS_DISABLE_LINK;
2764                 break;
2765         case NL80211_TDLS_TEARDOWN:
2766                 /* shouldn't happen!*/
2767                 dev_warn(priv->adapter->dev,
2768                          "tdls_oper: teardown from driver not supported\n");
2769                 return -EINVAL;
2770         case NL80211_TDLS_SETUP:
2771                 /* shouldn't happen!*/
2772                 dev_warn(priv->adapter->dev,
2773                          "tdls_oper: setup from driver not supported\n");
2774                 return -EINVAL;
2775         case NL80211_TDLS_DISCOVERY_REQ:
2776                 /* shouldn't happen!*/
2777                 dev_warn(priv->adapter->dev,
2778                          "tdls_oper: discovery from driver not supported\n");
2779                 return -EINVAL;
2780         default:
2781                 dev_err(priv->adapter->dev,
2782                         "tdls_oper: operation not supported\n");
2783                 return -ENOTSUPP;
2784         }
2785
2786         return mwifiex_tdls_oper(priv, peer, action);
2787 }
2788
2789 static int
2790 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2791                              const u8 *mac, struct station_parameters *params)
2792 {
2793         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2794
2795         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2796                 return -ENOTSUPP;
2797
2798         /* make sure we are in station mode and connected */
2799         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2800                 return -ENOTSUPP;
2801
2802         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2803 }
2804
2805 static int
2806 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2807                                 const u8 *mac,
2808                                 struct station_parameters *params)
2809 {
2810         int ret;
2811         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2812
2813         /* we support change_station handler only for TDLS peers*/
2814         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2815                 return -ENOTSUPP;
2816
2817         /* make sure we are in station mode and connected */
2818         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2819                 return -ENOTSUPP;
2820
2821         priv->sta_params = params;
2822
2823         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2824         priv->sta_params = NULL;
2825
2826         return ret;
2827 }
2828
2829 /* station cfg80211 operations */
2830 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2831         .add_virtual_intf = mwifiex_add_virtual_intf,
2832         .del_virtual_intf = mwifiex_del_virtual_intf,
2833         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2834         .scan = mwifiex_cfg80211_scan,
2835         .connect = mwifiex_cfg80211_connect,
2836         .disconnect = mwifiex_cfg80211_disconnect,
2837         .get_station = mwifiex_cfg80211_get_station,
2838         .dump_station = mwifiex_cfg80211_dump_station,
2839         .dump_survey = mwifiex_cfg80211_dump_survey,
2840         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2841         .join_ibss = mwifiex_cfg80211_join_ibss,
2842         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2843         .add_key = mwifiex_cfg80211_add_key,
2844         .del_key = mwifiex_cfg80211_del_key,
2845         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2846         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2847         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2848         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2849         .set_default_key = mwifiex_cfg80211_set_default_key,
2850         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2851         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2852         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2853         .start_ap = mwifiex_cfg80211_start_ap,
2854         .stop_ap = mwifiex_cfg80211_stop_ap,
2855         .change_beacon = mwifiex_cfg80211_change_beacon,
2856         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2857         .set_antenna = mwifiex_cfg80211_set_antenna,
2858         .del_station = mwifiex_cfg80211_del_station,
2859 #ifdef CONFIG_PM
2860         .suspend = mwifiex_cfg80211_suspend,
2861         .resume = mwifiex_cfg80211_resume,
2862         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2863 #endif
2864         .set_coalesce = mwifiex_cfg80211_set_coalesce,
2865         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2866         .tdls_oper = mwifiex_cfg80211_tdls_oper,
2867         .add_station = mwifiex_cfg80211_add_station,
2868         .change_station = mwifiex_cfg80211_change_station,
2869 };
2870
2871 #ifdef CONFIG_PM
2872 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2873         .flags = WIPHY_WOWLAN_MAGIC_PKT,
2874         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2875         .pattern_min_len = 1,
2876         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2877         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2878 };
2879 #endif
2880
2881 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2882 {
2883         if (!alpha2 || strlen(alpha2) != 2)
2884                 return false;
2885
2886         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2887                 return true;
2888
2889         return false;
2890 }
2891
2892 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2893         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2894         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2895         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2896         .pattern_min_len = 1,
2897         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2898         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2899 };
2900
2901 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
2902 {
2903         u32 n_channels_bg, n_channels_a = 0;
2904
2905         n_channels_bg = mwifiex_band_2ghz.n_channels;
2906
2907         if (adapter->config_bands & BAND_A)
2908                 n_channels_a = mwifiex_band_5ghz.n_channels;
2909
2910         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
2911         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
2912                                       adapter->num_in_chan_stats);
2913
2914         if (!adapter->chan_stats)
2915                 return -ENOMEM;
2916
2917         return 0;
2918 }
2919
2920 /*
2921  * This function registers the device with CFG802.11 subsystem.
2922  *
2923  * The function creates the wireless device/wiphy, populates it with
2924  * default parameters and handler function pointers, and finally
2925  * registers the device.
2926  */
2927
2928 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2929 {
2930         int ret;
2931         void *wdev_priv;
2932         struct wiphy *wiphy;
2933         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2934         u8 *country_code;
2935         u32 thr, retry;
2936
2937         /* create a new wiphy for use with cfg80211 */
2938         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2939                           sizeof(struct mwifiex_adapter *));
2940         if (!wiphy) {
2941                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2942                 return -ENOMEM;
2943         }
2944         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2945         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2946         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2947         wiphy->max_remain_on_channel_duration = 5000;
2948         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2949                                  BIT(NL80211_IFTYPE_ADHOC) |
2950                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2951                                  BIT(NL80211_IFTYPE_P2P_GO) |
2952                                  BIT(NL80211_IFTYPE_AP);
2953
2954         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2955         if (adapter->config_bands & BAND_A)
2956                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2957         else
2958                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2959
2960         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2961         wiphy->n_iface_combinations = 1;
2962
2963         /* Initialize cipher suits */
2964         wiphy->cipher_suites = mwifiex_cipher_suites;
2965         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2966
2967         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2968         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2969         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2970                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2971                         WIPHY_FLAG_AP_UAPSD |
2972                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2973
2974         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2975                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2976                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2977
2978 #ifdef CONFIG_PM
2979         wiphy->wowlan = &mwifiex_wowlan_support;
2980 #endif
2981
2982         wiphy->coalesce = &mwifiex_coalesce_support;
2983
2984         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2985                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2986                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2987
2988         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2989         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2990
2991         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2992                            NL80211_FEATURE_INACTIVITY_TIMER |
2993                            NL80211_FEATURE_NEED_OBSS_SCAN;
2994
2995         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
2996                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
2997
2998         /* Reserve space for mwifiex specific private data for BSS */
2999         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3000
3001         wiphy->reg_notifier = mwifiex_reg_notifier;
3002
3003         /* Set struct mwifiex_adapter pointer in wiphy_priv */
3004         wdev_priv = wiphy_priv(wiphy);
3005         *(unsigned long *)wdev_priv = (unsigned long)adapter;
3006
3007         set_wiphy_dev(wiphy, priv->adapter->dev);
3008
3009         ret = wiphy_register(wiphy);
3010         if (ret < 0) {
3011                 dev_err(adapter->dev,
3012                         "%s: wiphy_register failed: %d\n", __func__, ret);
3013                 wiphy_free(wiphy);
3014                 return ret;
3015         }
3016
3017         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3018                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
3019                 regulatory_hint(wiphy, reg_alpha2);
3020         } else {
3021                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3022                 if (country_code)
3023                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
3024                                    country_code);
3025         }
3026
3027         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3028                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3029         wiphy->frag_threshold = thr;
3030         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3031                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3032         wiphy->rts_threshold = thr;
3033         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3034                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3035         wiphy->retry_short = (u8) retry;
3036         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3037                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3038         wiphy->retry_long = (u8) retry;
3039
3040         adapter->wiphy = wiphy;
3041         return ret;
3042 }