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

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22
  23 static char *reg_alpha2;
  24 module_param(reg_alpha2, charp, 0);
  25
  26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  27         {
  28                 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
  29                                    BIT(NL80211_IFTYPE_P2P_GO) |
  30                                    BIT(NL80211_IFTYPE_P2P_CLIENT),
  31         },
  32         {
  33                 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
  38         .limits = mwifiex_ap_sta_limits,
  39         .num_different_channels = 1,
  40         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  41         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  42         .beacon_int_infra_match = true,
  43 };
  44
  45 /*
  46  * This function maps the nl802.11 channel type into driver channel type.
  47  *
  48  * The mapping is as follows -
  49  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  50  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  51  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  52  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  53  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  54  */
  55 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  56 {
  57         switch (chan_type) {
  58         case NL80211_CHAN_NO_HT:
  59         case NL80211_CHAN_HT20:
  60                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  61         case NL80211_CHAN_HT40PLUS:
  62                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  63         case NL80211_CHAN_HT40MINUS:
  64                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  65         default:
  66                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  67         }
  68 }
  69
  70 /*
  71  * This function checks whether WEP is set.
  72  */
  73 static int
  74 mwifiex_is_alg_wep(u32 cipher)
  75 {
  76         switch (cipher) {
  77         case WLAN_CIPHER_SUITE_WEP40:
  78         case WLAN_CIPHER_SUITE_WEP104:
  79                 return 1;
  80         default:
  81                 break;
  82         }
  83
  84         return 0;
  85 }
  86
  87 /*
  88  * This function retrieves the private structure from kernel wiphy structure.
  89  */
  90 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
  91 {
  92         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
  93 }
  94
  95 /*
  96  * CFG802.11 operation handler to delete a network key.
  97  */
  98 static int
  99 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 100                          u8 key_index, bool pairwise, const u8 *mac_addr)
 101 {
 102         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 103         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 104         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 105
 106         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 107                 wiphy_err(wiphy, "deleting the crypto keys\n");
 108                 return -EFAULT;
 109         }
 110
 111         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 112         return 0;
 113 }
 114
 115 /*
 116  * This function forms an skb for management frame.
 117  */
 118 static int
 119 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 120 {
 121         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 122         u16 pkt_len;
 123         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 124
 125         pkt_len = len + ETH_ALEN;
 126
 127         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 128                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 129         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 130
 131         memcpy(skb_push(skb, sizeof(tx_control)),
 132                &tx_control, sizeof(tx_control));
 133
 134         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 135
 136         /* Add packet data and address4 */
 137         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 138                sizeof(struct ieee80211_hdr_3addr));
 139         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 140         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 141                buf + sizeof(struct ieee80211_hdr_3addr),
 142                len - sizeof(struct ieee80211_hdr_3addr));
 143
 144         skb->priority = LOW_PRIO_TID;
 145         __net_timestamp(skb);
 146
 147         return 0;
 148 }
 149
 150 /*
 151  * CFG802.11 operation handler to transmit a management frame.
 152  */
 153 static int
 154 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 155                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 156 {
 157         const u8 *buf = params->buf;
 158         size_t len = params->len;
 159         struct sk_buff *skb;
 160         u16 pkt_len;
 161         const struct ieee80211_mgmt *mgmt;
 162         struct mwifiex_txinfo *tx_info;
 163         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 164
 165         if (!buf || !len) {
 166                 wiphy_err(wiphy, "invalid buffer and length\n");
 167                 return -EFAULT;
 168         }
 169
 170         mgmt = (const struct ieee80211_mgmt *)buf;
 171         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 172             ieee80211_is_probe_resp(mgmt->frame_control)) {
 173                 /* Since we support offload probe resp, we need to skip probe
 174                  * resp in AP or GO mode */
 175                 wiphy_dbg(wiphy,
 176                           "info: skip to send probe resp in AP or GO mode\n");
 177                 return 0;
 178         }
 179
 180         pkt_len = len + ETH_ALEN;
 181         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 182                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 183                             pkt_len + sizeof(pkt_len));
 184
 185         if (!skb) {
 186                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 187                 return -ENOMEM;
 188         }
 189
 190         tx_info = MWIFIEX_SKB_TXCB(skb);
 191         memset(tx_info, 0, sizeof(*tx_info));
 192         tx_info->bss_num = priv->bss_num;
 193         tx_info->bss_type = priv->bss_type;
 194         tx_info->pkt_len = pkt_len;
 195
 196         mwifiex_form_mgmt_frame(skb, buf, len);
 197         *cookie = prandom_u32() | 1;
 198
 199         if (ieee80211_is_action(mgmt->frame_control))
 200                 skb = mwifiex_clone_skb_for_tx_status(priv,
 201                                                       skb,
 202                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 203         else
 204                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 205                                         GFP_ATOMIC);
 206
 207         mwifiex_queue_tx_pkt(priv, skb);
 208
 209         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 210         return 0;
 211 }
 212
 213 /*
 214  * CFG802.11 operation handler to register a mgmt frame.
 215  */
 216 static void
 217 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 218                                      struct wireless_dev *wdev,
 219                                      u16 frame_type, bool reg)
 220 {
 221         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 222         u32 mask;
 223
 224         if (reg)
 225                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 226         else
 227                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 228
 229         if (mask != priv->mgmt_frame_mask) {
 230                 priv->mgmt_frame_mask = mask;
 231                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 232                                  HostCmd_ACT_GEN_SET, 0,
 233                                  &priv->mgmt_frame_mask, false);
 234                 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 235         }
 236 }
 237
 238 /*
 239  * CFG802.11 operation handler to remain on channel.
 240  */
 241 static int
 242 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 243                                    struct wireless_dev *wdev,
 244                                    struct ieee80211_channel *chan,
 245                                    unsigned int duration, u64 *cookie)
 246 {
 247         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 248         int ret;
 249
 250         if (!chan || !cookie) {
 251                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 252                 return -EINVAL;
 253         }
 254
 255         if (priv->roc_cfg.cookie) {
 256                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n",
 257                           priv->roc_cfg.cookie);
 258                 return -EBUSY;
 259         }
 260
 261         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 262                                          duration);
 263
 264         if (!ret) {
 265                 *cookie = prandom_u32() | 1;
 266                 priv->roc_cfg.cookie = *cookie;
 267                 priv->roc_cfg.chan = *chan;
 268
 269                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 270                                           duration, GFP_ATOMIC);
 271
 272                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 273         }
 274
 275         return ret;
 276 }
 277
 278 /*
 279  * CFG802.11 operation handler to cancel remain on channel.
 280  */
 281 static int
 282 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 283                                           struct wireless_dev *wdev, u64 cookie)
 284 {
 285         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 286         int ret;
 287
 288         if (cookie != priv->roc_cfg.cookie)
 289                 return -ENOENT;
 290
 291         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 292                                          &priv->roc_cfg.chan, 0);
 293
 294         if (!ret) {
 295                 cfg80211_remain_on_channel_expired(wdev, cookie,
 296                                                    &priv->roc_cfg.chan,
 297                                                    GFP_ATOMIC);
 298
 299                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 300
 301                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 302         }
 303
 304         return ret;
 305 }
 306
 307 /*
 308  * CFG802.11 operation handler to set Tx power.
 309  */
 310 static int
 311 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 312                               struct wireless_dev *wdev,
 313                               enum nl80211_tx_power_setting type,
 314                               int mbm)
 315 {
 316         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 317         struct mwifiex_private *priv;
 318         struct mwifiex_power_cfg power_cfg;
 319         int dbm = MBM_TO_DBM(mbm);
 320
 321         if (type == NL80211_TX_POWER_FIXED) {
 322                 power_cfg.is_power_auto = 0;
 323                 power_cfg.power_level = dbm;
 324         } else {
 325                 power_cfg.is_power_auto = 1;
 326         }
 327
 328         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 329
 330         return mwifiex_set_tx_power(priv, &power_cfg);
 331 }
 332
 333 /*
 334  * CFG802.11 operation handler to set Power Save option.
 335  *
 336  * The timeout value, if provided, is currently ignored.
 337  */
 338 static int
 339 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 340                                 struct net_device *dev,
 341                                 bool enabled, int timeout)
 342 {
 343         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 344         u32 ps_mode;
 345
 346         if (timeout)
 347                 wiphy_dbg(wiphy,
 348                           "info: ignore timeout value for IEEE Power Save\n");
 349
 350         ps_mode = enabled;
 351
 352         return mwifiex_drv_set_power(priv, &ps_mode);
 353 }
 354
 355 /*
 356  * CFG802.11 operation handler to set the default network key.
 357  */
 358 static int
 359 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 360                                  u8 key_index, bool unicast,
 361                                  bool multicast)
 362 {
 363         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 364
 365         /* Return if WEP key not configured */
 366         if (!priv->sec_info.wep_enabled)
 367                 return 0;
 368
 369         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 370                 priv->wep_key_curr_index = key_index;
 371         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 372                                       NULL, 0)) {
 373                 wiphy_err(wiphy, "set default Tx key index\n");
 374                 return -EFAULT;
 375         }
 376
 377         return 0;
 378 }
 379
 380 /*
 381  * CFG802.11 operation handler to add a network key.
 382  */
 383 static int
 384 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 385                          u8 key_index, bool pairwise, const u8 *mac_addr,
 386                          struct key_params *params)
 387 {
 388         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 389         struct mwifiex_wep_key *wep_key;
 390         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 391         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 392
 393         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 394             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 395              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 396                 if (params->key && params->key_len) {
 397                         wep_key = &priv->wep_key[key_index];
 398                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 399                         memcpy(wep_key->key_material, params->key,
 400                                params->key_len);
 401                         wep_key->key_index = key_index;
 402                         wep_key->key_length = params->key_len;
 403                         priv->sec_info.wep_enabled = 1;
 404                 }
 405                 return 0;
 406         }
 407
 408         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 409                                key_index, peer_mac, 0)) {
 410                 wiphy_err(wiphy, "crypto keys added\n");
 411                 return -EFAULT;
 412         }
 413
 414         return 0;
 415 }
 416
 417 /*
 418  * This function sends domain information to the firmware.
 419  *
 420  * The following information are passed to the firmware -
 421  *      - Country codes
 422  *      - Sub bands (first channel, number of channels, maximum Tx power)
 423  */
 424 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 425 {
 426         u8 no_of_triplet = 0;
 427         struct ieee80211_country_ie_triplet *t;
 428         u8 no_of_parsed_chan = 0;
 429         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 430         u8 i, flag = 0;
 431         enum ieee80211_band band;
 432         struct ieee80211_supported_band *sband;
 433         struct ieee80211_channel *ch;
 434         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 435         struct mwifiex_private *priv;
 436         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 437
 438         /* Set country code */
 439         domain_info->country_code[0] = adapter->country_code[0];
 440         domain_info->country_code[1] = adapter->country_code[1];
 441         domain_info->country_code[2] = ' ';
 442
 443         band = mwifiex_band_to_radio_type(adapter->config_bands);
 444         if (!wiphy->bands[band]) {
 445                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 446                 return -1;
 447         }
 448
 449         sband = wiphy->bands[band];
 450
 451         for (i = 0; i < sband->n_channels ; i++) {
 452                 ch = &sband->channels[i];
 453                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 454                         continue;
 455
 456                 if (!flag) {
 457                         flag = 1;
 458                         first_chan = (u32) ch->hw_value;
 459                         next_chan = first_chan;
 460                         max_pwr = ch->max_power;
 461                         no_of_parsed_chan = 1;
 462                         continue;
 463                 }
 464
 465                 if (ch->hw_value == next_chan + 1 &&
 466                     ch->max_power == max_pwr) {
 467                         next_chan++;
 468                         no_of_parsed_chan++;
 469                 } else {
 470                         t = &domain_info->triplet[no_of_triplet];
 471                         t->chans.first_channel = first_chan;
 472                         t->chans.num_channels = no_of_parsed_chan;
 473                         t->chans.max_power = max_pwr;
 474                         no_of_triplet++;
 475                         first_chan = (u32) ch->hw_value;
 476                         next_chan = first_chan;
 477                         max_pwr = ch->max_power;
 478                         no_of_parsed_chan = 1;
 479                 }
 480         }
 481
 482         if (flag) {
 483                 t = &domain_info->triplet[no_of_triplet];
 484                 t->chans.first_channel = first_chan;
 485                 t->chans.num_channels = no_of_parsed_chan;
 486                 t->chans.max_power = max_pwr;
 487                 no_of_triplet++;
 488         }
 489
 490         domain_info->no_of_triplet = no_of_triplet;
 491
 492         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 493
 494         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 495                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 496                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 497                 return -1;
 498         }
 499
 500         return 0;
 501 }
 502
 503 /*
 504  * CFG802.11 regulatory domain callback function.
 505  *
 506  * This function is called when the regulatory domain is changed due to the
 507  * following reasons -
 508  *      - Set by driver
 509  *      - Set by system core
 510  *      - Set by user
 511  *      - Set bt Country IE
 512  */
 513 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 514                                  struct regulatory_request *request)
 515 {
 516         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 517         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 518                                                         MWIFIEX_BSS_ROLE_ANY);
 519
 520         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 521                   request->alpha2[0], request->alpha2[1]);
 522
 523         switch (request->initiator) {
 524         case NL80211_REGDOM_SET_BY_DRIVER:
 525         case NL80211_REGDOM_SET_BY_CORE:
 526         case NL80211_REGDOM_SET_BY_USER:
 527         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 528                 break;
 529         default:
 530                 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
 531                           request->initiator);
 532                 return;
 533         }
 534
 535         /* Don't send world or same regdom info to firmware */
 536         if (strncmp(request->alpha2, "00", 2) &&
 537             strncmp(request->alpha2, adapter->country_code,
 538                     sizeof(request->alpha2))) {
 539                 memcpy(adapter->country_code, request->alpha2,
 540                        sizeof(request->alpha2));
 541                 mwifiex_send_domain_info_cmd_fw(wiphy);
 542                 mwifiex_dnld_txpwr_table(priv);
 543         }
 544 }
 545
 546 /*
 547  * This function sets the fragmentation threshold.
 548  *
 549  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 550  * and MWIFIEX_FRAG_MAX_VALUE.
 551  */
 552 static int
 553 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 554 {
 555         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 556             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 557                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 558
 559         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 560                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 561                                 &frag_thr, true);
 562 }
 563
 564 /*
 565  * This function sets the RTS threshold.
 566
 567  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 568  * and MWIFIEX_RTS_MAX_VALUE.
 569  */
 570 static int
 571 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 572 {
 573         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 574                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 575
 576         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 577                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 578                                 &rts_thr, true);
 579 }
 580
 581 /*
 582  * CFG802.11 operation handler to set wiphy parameters.
 583  *
 584  * This function can be used to set the RTS threshold and the
 585  * Fragmentation threshold of the driver.
 586  */
 587 static int
 588 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 589 {
 590         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 591         struct mwifiex_private *priv;
 592         struct mwifiex_uap_bss_param *bss_cfg;
 593         int ret;
 594
 595         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 596
 597         switch (priv->bss_role) {
 598         case MWIFIEX_BSS_ROLE_UAP:
 599                 if (priv->bss_started) {
 600                         dev_err(adapter->dev,
 601                                 "cannot change wiphy params when bss started");
 602                         return -EINVAL;
 603                 }
 604
 605                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 606                 if (!bss_cfg)
 607                         return -ENOMEM;
 608
 609                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 610
 611                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 612                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 613                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 614                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 615                 if (changed & WIPHY_PARAM_RETRY_LONG)
 616                         bss_cfg->retry_limit = wiphy->retry_long;
 617
 618                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 619                                        HostCmd_ACT_GEN_SET,
 620                                        UAP_BSS_PARAMS_I, bss_cfg,
 621                                        false);
 622
 623                 kfree(bss_cfg);
 624                 if (ret) {
 625                         wiphy_err(wiphy, "Failed to set wiphy phy params\n");
 626                         return ret;
 627                 }
 628                 break;
 629
 630                 case MWIFIEX_BSS_ROLE_STA:
 631                 if (priv->media_connected) {
 632                         dev_err(adapter->dev,
 633                                 "cannot change wiphy params when connected");
 634                         return -EINVAL;
 635                 }
 636                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 637                         ret = mwifiex_set_rts(priv,
 638                                               wiphy->rts_threshold);
 639                         if (ret)
 640                                 return ret;
 641                 }
 642                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 643                         ret = mwifiex_set_frag(priv,
 644                                                wiphy->frag_threshold);
 645                         if (ret)
 646                                 return ret;
 647                 }
 648                 break;
 649         }
 650
 651         return 0;
 652 }
 653
 654 static int
 655 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 656 {
 657         u16 mode = P2P_MODE_DISABLE;
 658
 659         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 660                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 661                 return -1;
 662
 663         return 0;
 664 }
 665
 666 /*
 667  * This function initializes the functionalities for P2P client.
 668  * The P2P client initialization sequence is:
 669  * disable -> device -> client
 670  */
 671 static int
 672 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 673 {
 674         u16 mode;
 675
 676         if (mwifiex_cfg80211_deinit_p2p(priv))
 677                 return -1;
 678
 679         mode = P2P_MODE_DEVICE;
 680         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 681                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 682                 return -1;
 683
 684         mode = P2P_MODE_CLIENT;
 685         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 686                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 687                 return -1;
 688
 689         return 0;
 690 }
 691
 692 /*
 693  * This function initializes the functionalities for P2P GO.
 694  * The P2P GO initialization sequence is:
 695  * disable -> device -> GO
 696  */
 697 static int
 698 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 699 {
 700         u16 mode;
 701
 702         if (mwifiex_cfg80211_deinit_p2p(priv))
 703                 return -1;
 704
 705         mode = P2P_MODE_DEVICE;
 706         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 707                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 708                 return -1;
 709
 710         mode = P2P_MODE_GO;
 711         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 712                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 713                 return -1;
 714
 715         return 0;
 716 }
 717
 718 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 719 {
 720         struct mwifiex_adapter *adapter = priv->adapter;
 721         unsigned long flags;
 722
 723         priv->mgmt_frame_mask = 0;
 724         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 725                              HostCmd_ACT_GEN_SET, 0,
 726                              &priv->mgmt_frame_mask, false)) {
 727                 dev_warn(priv->adapter->dev,
 728                          "could not unregister mgmt frame rx\n");
 729                 return -1;
 730         }
 731
 732         mwifiex_deauthenticate(priv, NULL);
 733
 734         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 735         adapter->main_locked = true;
 736         if (adapter->mwifiex_processing) {
 737                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 738                 flush_workqueue(adapter->workqueue);
 739         } else {
 740                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 741         }
 742
 743         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 744         adapter->rx_locked = true;
 745         if (adapter->rx_processing) {
 746                 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 747                 flush_workqueue(adapter->rx_workqueue);
 748         } else {
 749         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 750         }
 751
 752         mwifiex_free_priv(priv);
 753         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 754         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 755         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 756
 757         return 0;
 758 }
 759
 760 static int
 761 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 762                              struct net_device *dev,
 763                              enum nl80211_iftype type)
 764 {
 765         struct mwifiex_adapter *adapter = priv->adapter;
 766         unsigned long flags;
 767
 768         mwifiex_init_priv(priv);
 769
 770         priv->bss_mode = type;
 771         priv->wdev.iftype = type;
 772
 773         mwifiex_init_priv_params(priv, priv->netdev);
 774         priv->bss_started = 0;
 775
 776         switch (type) {
 777         case NL80211_IFTYPE_STATION:
 778         case NL80211_IFTYPE_ADHOC:
 779                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 780                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 781                 break;
 782         case NL80211_IFTYPE_P2P_CLIENT:
 783         case NL80211_IFTYPE_P2P_GO:
 784                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 785                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 786                 break;
 787         case NL80211_IFTYPE_AP:
 788                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 789                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 790                 break;
 791         default:
 792                 dev_err(priv->adapter->dev,
 793                         "%s: changing to %d not supported\n",
 794                         dev->name, type);
 795                 return -EOPNOTSUPP;
 796         }
 797
 798         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 799         adapter->main_locked = false;
 800         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 801
 802         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 803         adapter->rx_locked = false;
 804         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 805
 806         return 0;
 807 }
 808
 809 static int
 810 mwifiex_change_vif_to_p2p(struct net_device *dev,
 811                           enum nl80211_iftype curr_iftype,
 812                           enum nl80211_iftype type, u32 *flags,
 813                           struct vif_params *params)
 814 {
 815         struct mwifiex_private *priv;
 816         struct mwifiex_adapter *adapter;
 817
 818         priv = mwifiex_netdev_get_priv(dev);
 819
 820         if (!priv)
 821                 return -1;
 822
 823         adapter = priv->adapter;
 824
 825         if (adapter->curr_iface_comb.p2p_intf ==
 826             adapter->iface_limit.p2p_intf) {
 827                 dev_err(adapter->dev,
 828                         "cannot create multiple P2P ifaces\n");
 829                 return -1;
 830         }
 831
 832         dev_dbg(priv->adapter->dev, "%s: changing role to p2p\n", dev->name);
 833
 834         if (mwifiex_deinit_priv_params(priv))
 835                 return -1;
 836         if (mwifiex_init_new_priv_params(priv, dev, type))
 837                 return -1;
 838
 839         switch (type) {
 840         case NL80211_IFTYPE_P2P_CLIENT:
 841                 if (mwifiex_cfg80211_init_p2p_client(priv))
 842                         return -EFAULT;
 843                 break;
 844         case NL80211_IFTYPE_P2P_GO:
 845                 if (mwifiex_cfg80211_init_p2p_go(priv))
 846                         return -EFAULT;
 847                 break;
 848         default:
 849                 dev_err(priv->adapter->dev,
 850                         "%s: changing to %d not supported\n",
 851                         dev->name, type);
 852                 return -EOPNOTSUPP;
 853         }
 854
 855         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 856                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 857                 return -1;
 858
 859         if (mwifiex_sta_init_cmd(priv, false, false))
 860                 return -1;
 861
 862         switch (curr_iftype) {
 863         case NL80211_IFTYPE_STATION:
 864         case NL80211_IFTYPE_ADHOC:
 865                 adapter->curr_iface_comb.sta_intf--;
 866                 break;
 867         case NL80211_IFTYPE_AP:
 868                 adapter->curr_iface_comb.uap_intf--;
 869                 break;
 870         default:
 871                 break;
 872         }
 873
 874         adapter->curr_iface_comb.p2p_intf++;
 875         dev->ieee80211_ptr->iftype = type;
 876
 877         return 0;
 878 }
 879
 880 static int
 881 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
 882                                 enum nl80211_iftype curr_iftype,
 883                                 enum nl80211_iftype type, u32 *flags,
 884                                 struct vif_params *params)
 885 {
 886         struct mwifiex_private *priv;
 887         struct mwifiex_adapter *adapter;
 888
 889         priv = mwifiex_netdev_get_priv(dev);
 890
 891         if (!priv)
 892                 return -1;
 893
 894         adapter = priv->adapter;
 895
 896         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
 897              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
 898             (adapter->curr_iface_comb.sta_intf ==
 899              adapter->iface_limit.sta_intf)) {
 900                 dev_err(adapter->dev,
 901                         "cannot create multiple station/adhoc ifaces\n");
 902                 return -1;
 903         }
 904
 905         if (type == NL80211_IFTYPE_STATION)
 906                 dev_notice(adapter->dev,
 907                            "%s: changing role to station\n", dev->name);
 908         else
 909                 dev_notice(adapter->dev,
 910                            "%s: changing role to adhoc\n", dev->name);
 911
 912         if (mwifiex_deinit_priv_params(priv))
 913                 return -1;
 914         if (mwifiex_init_new_priv_params(priv, dev, type))
 915                 return -1;
 916         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 917                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 918                 return -1;
 919         if (mwifiex_sta_init_cmd(priv, false, false))
 920                 return -1;
 921
 922         switch (curr_iftype) {
 923         case NL80211_IFTYPE_P2P_CLIENT:
 924         case NL80211_IFTYPE_P2P_GO:
 925                 adapter->curr_iface_comb.p2p_intf--;
 926                 break;
 927         case NL80211_IFTYPE_AP:
 928                 adapter->curr_iface_comb.uap_intf--;
 929                 break;
 930         default:
 931                 break;
 932         }
 933
 934         adapter->curr_iface_comb.sta_intf++;
 935         dev->ieee80211_ptr->iftype = type;
 936         return 0;
 937 }
 938
 939 static int
 940 mwifiex_change_vif_to_ap(struct net_device *dev,
 941                          enum nl80211_iftype curr_iftype,
 942                          enum nl80211_iftype type, u32 *flags,
 943                          struct vif_params *params)
 944 {
 945         struct mwifiex_private *priv;
 946         struct mwifiex_adapter *adapter;
 947
 948         priv = mwifiex_netdev_get_priv(dev);
 949
 950         if (!priv)
 951                 return -1;
 952
 953         adapter = priv->adapter;
 954
 955         if (adapter->curr_iface_comb.uap_intf ==
 956             adapter->iface_limit.uap_intf) {
 957                 dev_err(adapter->dev,
 958                         "cannot create multiple AP ifaces\n");
 959                 return -1;
 960         }
 961
 962         dev_notice(adapter->dev, "%s: changing role to AP\n", dev->name);
 963
 964         if (mwifiex_deinit_priv_params(priv))
 965                 return -1;
 966         if (mwifiex_init_new_priv_params(priv, dev, type))
 967                 return -1;
 968         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 969                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 970                 return -1;
 971         if (mwifiex_sta_init_cmd(priv, false, false))
 972                 return -1;
 973
 974         switch (curr_iftype) {
 975         case NL80211_IFTYPE_P2P_CLIENT:
 976         case NL80211_IFTYPE_P2P_GO:
 977                 adapter->curr_iface_comb.p2p_intf--;
 978                 break;
 979         case NL80211_IFTYPE_STATION:
 980         case NL80211_IFTYPE_ADHOC:
 981                 adapter->curr_iface_comb.sta_intf--;
 982                 break;
 983         default:
 984                 break;
 985         }
 986
 987         adapter->curr_iface_comb.uap_intf++;
 988         dev->ieee80211_ptr->iftype = type;
 989         return 0;
 990 }
 991 /*
 992  * CFG802.11 operation handler to change interface type.
 993  */
 994 static int
 995 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 996                                      struct net_device *dev,
 997                                      enum nl80211_iftype type, u32 *flags,
 998                                      struct vif_params *params)
 999 {
1000         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1001         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1002
1003         switch (curr_iftype) {
1004         case NL80211_IFTYPE_ADHOC:
1005                 switch (type) {
1006                 case NL80211_IFTYPE_STATION:
1007                         priv->bss_mode = type;
1008                         priv->sec_info.authentication_mode =
1009                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1010                         dev->ieee80211_ptr->iftype = type;
1011                         mwifiex_deauthenticate(priv, NULL);
1012                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1013                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1014                                                 true);
1015                 case NL80211_IFTYPE_P2P_CLIENT:
1016                 case NL80211_IFTYPE_P2P_GO:
1017                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1018                                                          type, flags, params);
1019                 case NL80211_IFTYPE_AP:
1020                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1021                                                         flags, params);
1022                 case NL80211_IFTYPE_UNSPECIFIED:
1023                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
1024                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1025                         return 0;
1026                 default:
1027                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
1028                                   dev->name, type);
1029                         return -EOPNOTSUPP;
1030                 }
1031                 break;
1032         case NL80211_IFTYPE_STATION:
1033                 switch (type) {
1034                 case NL80211_IFTYPE_ADHOC:
1035                         priv->bss_mode = type;
1036                         priv->sec_info.authentication_mode =
1037                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1038                         dev->ieee80211_ptr->iftype = type;
1039                         mwifiex_deauthenticate(priv, NULL);
1040                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1041                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1042                                                 true);
1043                 case NL80211_IFTYPE_P2P_CLIENT:
1044                 case NL80211_IFTYPE_P2P_GO:
1045                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1046                                                          type, flags, params);
1047                 case NL80211_IFTYPE_AP:
1048                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1049                                                         flags, params);
1050                 case NL80211_IFTYPE_UNSPECIFIED:
1051                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
1052                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1053                         return 0;
1054                 default:
1055                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
1056                                   dev->name, type);
1057                         return -EOPNOTSUPP;
1058                 }
1059                 break;
1060         case NL80211_IFTYPE_AP:
1061                 switch (type) {
1062                 case NL80211_IFTYPE_ADHOC:
1063                 case NL80211_IFTYPE_STATION:
1064                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1065                                                                type, flags,
1066                                                                params);
1067                         break;
1068                 case NL80211_IFTYPE_P2P_CLIENT:
1069                 case NL80211_IFTYPE_P2P_GO:
1070                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1071                                                          type, flags, params);
1072                 case NL80211_IFTYPE_UNSPECIFIED:
1073                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
1074                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1075                         return 0;
1076                 default:
1077                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
1078                                   dev->name, type);
1079                         return -EOPNOTSUPP;
1080                 }
1081                 break;
1082         case NL80211_IFTYPE_P2P_CLIENT:
1083         case NL80211_IFTYPE_P2P_GO:
1084                 switch (type) {
1085                 case NL80211_IFTYPE_STATION:
1086                         if (mwifiex_cfg80211_init_p2p_client(priv))
1087                                 return -EFAULT;
1088                         dev->ieee80211_ptr->iftype = type;
1089                         break;
1090                 case NL80211_IFTYPE_ADHOC:
1091                         if (mwifiex_cfg80211_deinit_p2p(priv))
1092                                 return -EFAULT;
1093                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1094                                                                type, flags,
1095                                                                params);
1096                         break;
1097                 case NL80211_IFTYPE_AP:
1098                         if (mwifiex_cfg80211_deinit_p2p(priv))
1099                                 return -EFAULT;
1100                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1101                                                         flags, params);
1102                 case NL80211_IFTYPE_UNSPECIFIED:
1103                         wiphy_warn(wiphy, "%s: kept type as P2P\n", dev->name);
1104                 case NL80211_IFTYPE_P2P_CLIENT:
1105                 case NL80211_IFTYPE_P2P_GO:
1106                         return 0;
1107                 default:
1108                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
1109                                   dev->name, type);
1110                         return -EOPNOTSUPP;
1111                 }
1112                 break;
1113         default:
1114                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
1115                           dev->name, dev->ieee80211_ptr->iftype);
1116                 return -EOPNOTSUPP;
1117         }
1118
1119
1120         return 0;
1121 }
1122
1123 static void
1124 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1125                      struct rate_info *rate)
1126 {
1127         struct mwifiex_adapter *adapter = priv->adapter;
1128
1129         if (adapter->is_hw_11ac_capable) {
1130                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1131                 if (tx_htinfo & BIT(0)) {
1132                         /* HT */
1133                         rate->mcs = priv->tx_rate;
1134                         rate->flags |= RATE_INFO_FLAGS_MCS;
1135                 }
1136                 if (tx_htinfo & BIT(1)) {
1137                         /* VHT */
1138                         rate->mcs = priv->tx_rate & 0x0F;
1139                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1140                 }
1141
1142                 if (tx_htinfo & (BIT(1) | BIT(0))) {
1143                         /* HT or VHT */
1144                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
1145                         case 0:
1146                                 rate->bw = RATE_INFO_BW_20;
1147                                 break;
1148                         case (BIT(2)):
1149                                 rate->bw = RATE_INFO_BW_40;
1150                                 break;
1151                         case (BIT(3)):
1152                                 rate->bw = RATE_INFO_BW_80;
1153                                 break;
1154                         case (BIT(3) | BIT(2)):
1155                                 rate->bw = RATE_INFO_BW_160;
1156                                 break;
1157                         }
1158
1159                         if (tx_htinfo & BIT(4))
1160                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1161
1162                         if ((priv->tx_rate >> 4) == 1)
1163                                 rate->nss = 2;
1164                         else
1165                                 rate->nss = 1;
1166                 }
1167         } else {
1168                 /*
1169                  * Bit 0 in tx_htinfo indicates that current Tx rate
1170                  * is 11n rate. Valid MCS index values for us are 0 to 15.
1171                  */
1172                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1173                         rate->mcs = priv->tx_rate;
1174                         rate->flags |= RATE_INFO_FLAGS_MCS;
1175                         rate->bw = RATE_INFO_BW_20;
1176                         if (tx_htinfo & BIT(1))
1177                                 rate->bw = RATE_INFO_BW_40;
1178                         if (tx_htinfo & BIT(2))
1179                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1180                 }
1181         }
1182 }
1183
1184 /*
1185  * This function dumps the station information on a buffer.
1186  *
1187  * The following information are shown -
1188  *      - Total bytes transmitted
1189  *      - Total bytes received
1190  *      - Total packets transmitted
1191  *      - Total packets received
1192  *      - Signal quality level
1193  *      - Transmission rate
1194  */
1195 static int
1196 mwifiex_dump_station_info(struct mwifiex_private *priv,
1197                           struct station_info *sinfo)
1198 {
1199         u32 rate;
1200
1201         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1202                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1203                         BIT(NL80211_STA_INFO_TX_BITRATE) |
1204                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1205
1206         /* Get signal information from the firmware */
1207         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1208                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1209                 dev_err(priv->adapter->dev, "failed to get signal information\n");
1210                 return -EFAULT;
1211         }
1212
1213         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1214                 dev_err(priv->adapter->dev, "getting data rate\n");
1215                 return -EFAULT;
1216         }
1217
1218         /* Get DTIM period information from firmware */
1219         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1220                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1221                          &priv->dtim_period, true);
1222
1223         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1224
1225         sinfo->signal_avg = priv->bcn_rssi_avg;
1226         sinfo->rx_bytes = priv->stats.rx_bytes;
1227         sinfo->tx_bytes = priv->stats.tx_bytes;
1228         sinfo->rx_packets = priv->stats.rx_packets;
1229         sinfo->tx_packets = priv->stats.tx_packets;
1230         sinfo->signal = priv->bcn_rssi_avg;
1231         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1232         sinfo->txrate.legacy = rate * 5;
1233
1234         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1235                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1236                 sinfo->bss_param.flags = 0;
1237                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1238                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1239                         sinfo->bss_param.flags |=
1240                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1241                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1242                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1243                         sinfo->bss_param.flags |=
1244                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1245                 sinfo->bss_param.dtim_period = priv->dtim_period;
1246                 sinfo->bss_param.beacon_interval =
1247                         priv->curr_bss_params.bss_descriptor.beacon_period;
1248         }
1249
1250         return 0;
1251 }
1252
1253 /*
1254  * CFG802.11 operation handler to get station information.
1255  *
1256  * This function only works in connected mode, and dumps the
1257  * requested station information, if available.
1258  */
1259 static int
1260 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1261                              const u8 *mac, struct station_info *sinfo)
1262 {
1263         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1264
1265         if (!priv->media_connected)
1266                 return -ENOENT;
1267         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1268                 return -ENOENT;
1269
1270         return mwifiex_dump_station_info(priv, sinfo);
1271 }
1272
1273 /*
1274  * CFG802.11 operation handler to dump station information.
1275  */
1276 static int
1277 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1278                               int idx, u8 *mac, struct station_info *sinfo)
1279 {
1280         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1281
1282         if (!priv->media_connected || idx)
1283                 return -ENOENT;
1284
1285         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1286
1287         return mwifiex_dump_station_info(priv, sinfo);
1288 }
1289
1290 static int
1291 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1292                              int idx, struct survey_info *survey)
1293 {
1294         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1295         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1296         enum ieee80211_band band;
1297
1298         dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
1299
1300         memset(survey, 0, sizeof(struct survey_info));
1301
1302         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1303             priv->media_connected && idx == 0) {
1304                         u8 curr_bss_band = priv->curr_bss_params.band;
1305                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1306
1307                         band = mwifiex_band_to_radio_type(curr_bss_band);
1308                         survey->channel = ieee80211_get_channel(wiphy,
1309                                 ieee80211_channel_to_frequency(chan, band));
1310
1311                         if (priv->bcn_nf_last) {
1312                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1313                                 survey->noise = priv->bcn_nf_last;
1314                         }
1315                         return 0;
1316         }
1317
1318         if (idx >= priv->adapter->num_in_chan_stats)
1319                 return -ENOENT;
1320
1321         if (!pchan_stats[idx].cca_scan_dur)
1322                 return 0;
1323
1324         band = pchan_stats[idx].bandcfg;
1325         survey->channel = ieee80211_get_channel(wiphy,
1326             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1327         survey->filled = SURVEY_INFO_NOISE_DBM |
1328                          SURVEY_INFO_TIME |
1329                          SURVEY_INFO_TIME_BUSY;
1330         survey->noise = pchan_stats[idx].noise;
1331         survey->time = pchan_stats[idx].cca_scan_dur;
1332         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1333
1334         return 0;
1335 }
1336
1337 /* Supported rates to be advertised to the cfg80211 */
1338 static struct ieee80211_rate mwifiex_rates[] = {
1339         {.bitrate = 10, .hw_value = 2, },
1340         {.bitrate = 20, .hw_value = 4, },
1341         {.bitrate = 55, .hw_value = 11, },
1342         {.bitrate = 110, .hw_value = 22, },
1343         {.bitrate = 60, .hw_value = 12, },
1344         {.bitrate = 90, .hw_value = 18, },
1345         {.bitrate = 120, .hw_value = 24, },
1346         {.bitrate = 180, .hw_value = 36, },
1347         {.bitrate = 240, .hw_value = 48, },
1348         {.bitrate = 360, .hw_value = 72, },
1349         {.bitrate = 480, .hw_value = 96, },
1350         {.bitrate = 540, .hw_value = 108, },
1351 };
1352
1353 /* Channel definitions to be advertised to cfg80211 */
1354 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1355         {.center_freq = 2412, .hw_value = 1, },
1356         {.center_freq = 2417, .hw_value = 2, },
1357         {.center_freq = 2422, .hw_value = 3, },
1358         {.center_freq = 2427, .hw_value = 4, },
1359         {.center_freq = 2432, .hw_value = 5, },
1360         {.center_freq = 2437, .hw_value = 6, },
1361         {.center_freq = 2442, .hw_value = 7, },
1362         {.center_freq = 2447, .hw_value = 8, },
1363         {.center_freq = 2452, .hw_value = 9, },
1364         {.center_freq = 2457, .hw_value = 10, },
1365         {.center_freq = 2462, .hw_value = 11, },
1366         {.center_freq = 2467, .hw_value = 12, },
1367         {.center_freq = 2472, .hw_value = 13, },
1368         {.center_freq = 2484, .hw_value = 14, },
1369 };
1370
1371 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1372         .channels = mwifiex_channels_2ghz,
1373         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1374         .bitrates = mwifiex_rates,
1375         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1376 };
1377
1378 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1379         {.center_freq = 5040, .hw_value = 8, },
1380         {.center_freq = 5060, .hw_value = 12, },
1381         {.center_freq = 5080, .hw_value = 16, },
1382         {.center_freq = 5170, .hw_value = 34, },
1383         {.center_freq = 5190, .hw_value = 38, },
1384         {.center_freq = 5210, .hw_value = 42, },
1385         {.center_freq = 5230, .hw_value = 46, },
1386         {.center_freq = 5180, .hw_value = 36, },
1387         {.center_freq = 5200, .hw_value = 40, },
1388         {.center_freq = 5220, .hw_value = 44, },
1389         {.center_freq = 5240, .hw_value = 48, },
1390         {.center_freq = 5260, .hw_value = 52, },
1391         {.center_freq = 5280, .hw_value = 56, },
1392         {.center_freq = 5300, .hw_value = 60, },
1393         {.center_freq = 5320, .hw_value = 64, },
1394         {.center_freq = 5500, .hw_value = 100, },
1395         {.center_freq = 5520, .hw_value = 104, },
1396         {.center_freq = 5540, .hw_value = 108, },
1397         {.center_freq = 5560, .hw_value = 112, },
1398         {.center_freq = 5580, .hw_value = 116, },
1399         {.center_freq = 5600, .hw_value = 120, },
1400         {.center_freq = 5620, .hw_value = 124, },
1401         {.center_freq = 5640, .hw_value = 128, },
1402         {.center_freq = 5660, .hw_value = 132, },
1403         {.center_freq = 5680, .hw_value = 136, },
1404         {.center_freq = 5700, .hw_value = 140, },
1405         {.center_freq = 5745, .hw_value = 149, },
1406         {.center_freq = 5765, .hw_value = 153, },
1407         {.center_freq = 5785, .hw_value = 157, },
1408         {.center_freq = 5805, .hw_value = 161, },
1409         {.center_freq = 5825, .hw_value = 165, },
1410 };
1411
1412 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1413         .channels = mwifiex_channels_5ghz,
1414         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1415         .bitrates = mwifiex_rates + 4,
1416         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1417 };
1418
1419
1420 /* Supported crypto cipher suits to be advertised to cfg80211 */
1421 static const u32 mwifiex_cipher_suites[] = {
1422         WLAN_CIPHER_SUITE_WEP40,
1423         WLAN_CIPHER_SUITE_WEP104,
1424         WLAN_CIPHER_SUITE_TKIP,
1425         WLAN_CIPHER_SUITE_CCMP,
1426         WLAN_CIPHER_SUITE_AES_CMAC,
1427 };
1428
1429 /* Supported mgmt frame types to be advertised to cfg80211 */
1430 static const struct ieee80211_txrx_stypes
1431 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1432         [NL80211_IFTYPE_STATION] = {
1433                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1434                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1435                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1436                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1437         },
1438         [NL80211_IFTYPE_AP] = {
1439                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1440                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1441                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1442                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1443         },
1444         [NL80211_IFTYPE_P2P_CLIENT] = {
1445                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1446                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1447                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1448                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1449         },
1450         [NL80211_IFTYPE_P2P_GO] = {
1451                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1452                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1453                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1454                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1455         },
1456 };
1457
1458 /*
1459  * CFG802.11 operation handler for setting bit rates.
1460  *
1461  * Function configures data rates to firmware using bitrate mask
1462  * provided by cfg80211.
1463  */
1464 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1465                                 struct net_device *dev,
1466                                 const u8 *peer,
1467                                 const struct cfg80211_bitrate_mask *mask)
1468 {
1469         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1470         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1471         enum ieee80211_band band;
1472         struct mwifiex_adapter *adapter = priv->adapter;
1473
1474         if (!priv->media_connected) {
1475                 dev_err(adapter->dev,
1476                         "Can not set Tx data rate in disconnected state\n");
1477                 return -EINVAL;
1478         }
1479
1480         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1481
1482         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1483
1484         /* Fill HR/DSSS rates. */
1485         if (band == IEEE80211_BAND_2GHZ)
1486                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1487
1488         /* Fill OFDM rates */
1489         if (band == IEEE80211_BAND_2GHZ)
1490                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1491         else
1492                 bitmap_rates[1] = mask->control[band].legacy;
1493
1494         /* Fill HT MCS rates */
1495         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1496         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1497                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1498
1499        /* Fill VHT MCS rates */
1500         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1501                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1502                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1503                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1504         }
1505
1506         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1507                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1508 }
1509
1510 /*
1511  * CFG802.11 operation handler for connection quality monitoring.
1512  *
1513  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1514  * events to FW.
1515  */
1516 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1517                                                 struct net_device *dev,
1518                                                 s32 rssi_thold, u32 rssi_hyst)
1519 {
1520         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1521         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1522
1523         priv->cqm_rssi_thold = rssi_thold;
1524         priv->cqm_rssi_hyst = rssi_hyst;
1525
1526         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1527         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1528
1529         /* Subscribe/unsubscribe low and high rssi events */
1530         if (rssi_thold && rssi_hyst) {
1531                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1532                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1533                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1534                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1535                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1536                 return mwifiex_send_cmd(priv,
1537                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1538                                         0, 0, &subsc_evt, true);
1539         } else {
1540                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1541                 return mwifiex_send_cmd(priv,
1542                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1543                                         0, 0, &subsc_evt, true);
1544         }
1545
1546         return 0;
1547 }
1548
1549 /* cfg80211 operation handler for change_beacon.
1550  * Function retrieves and sets modified management IEs to FW.
1551  */
1552 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1553                                           struct net_device *dev,
1554                                           struct cfg80211_beacon_data *data)
1555 {
1556         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1557
1558         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1559                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1560                 return -EINVAL;
1561         }
1562
1563         if (!priv->bss_started) {
1564                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1565                 return -EINVAL;
1566         }
1567
1568         if (mwifiex_set_mgmt_ies(priv, data)) {
1569                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1570                 return -EFAULT;
1571         }
1572
1573         return 0;
1574 }
1575
1576 /* cfg80211 operation handler for del_station.
1577  * Function deauthenticates station which value is provided in mac parameter.
1578  * If mac is NULL/broadcast, all stations in associated station list are
1579  * deauthenticated. If bss is not started or there are no stations in
1580  * associated stations list, no action is taken.
1581  */
1582 static int
1583 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1584                              struct station_del_parameters *params)
1585 {
1586         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1587         struct mwifiex_sta_node *sta_node;
1588         u8 deauth_mac[ETH_ALEN];
1589         unsigned long flags;
1590
1591         if (list_empty(&priv->sta_list) || !priv->bss_started)
1592                 return 0;
1593
1594         if (!params->mac || is_broadcast_ether_addr(params->mac))
1595                 return 0;
1596
1597         wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac);
1598
1599         eth_zero_addr(deauth_mac);
1600
1601         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1602         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1603         if (sta_node)
1604                 ether_addr_copy(deauth_mac, params->mac);
1605         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1606
1607         if (is_valid_ether_addr(deauth_mac)) {
1608                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1609                                      HostCmd_ACT_GEN_SET, 0,
1610                                      deauth_mac, true))
1611                         return -1;
1612         }
1613
1614         return 0;
1615 }
1616
1617 static int
1618 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1619 {
1620         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1621         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1622                                                         MWIFIEX_BSS_ROLE_ANY);
1623         struct mwifiex_ds_ant_cfg ant_cfg;
1624
1625         if (!tx_ant || !rx_ant)
1626                 return -EOPNOTSUPP;
1627
1628         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1629                 /* Not a MIMO chip. User should provide specific antenna number
1630                  * for Tx/Rx path or enable all antennas for diversity
1631                  */
1632                 if (tx_ant != rx_ant)
1633                         return -EOPNOTSUPP;
1634
1635                 if ((tx_ant & (tx_ant - 1)) &&
1636                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1637                         return -EOPNOTSUPP;
1638
1639                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1640                     (priv->adapter->number_of_antenna > 1)) {
1641                         tx_ant = RF_ANTENNA_AUTO;
1642                         rx_ant = RF_ANTENNA_AUTO;
1643                 }
1644         } else {
1645                 struct ieee80211_sta_ht_cap *ht_info;
1646                 int rx_mcs_supp;
1647                 enum ieee80211_band band;
1648
1649                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1650                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1651                         if (adapter->is_hw_11ac_capable)
1652                                 adapter->usr_dot_11ac_mcs_support =
1653                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1654                 } else {
1655                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1656                         if (adapter->is_hw_11ac_capable)
1657                                 adapter->usr_dot_11ac_mcs_support =
1658                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1659                 }
1660
1661                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1662                         if (!adapter->wiphy->bands[band])
1663                                 continue;
1664
1665                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1666                         rx_mcs_supp =
1667                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1668                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1669                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1670                 }
1671         }
1672
1673         ant_cfg.tx_ant = tx_ant;
1674         ant_cfg.rx_ant = rx_ant;
1675
1676         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1677                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1678 }
1679
1680 /* cfg80211 operation handler for stop ap.
1681  * Function stops BSS running at uAP interface.
1682  */
1683 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1684 {
1685         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1686
1687         mwifiex_abort_cac(priv);
1688
1689         if (mwifiex_del_mgmt_ies(priv))
1690                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1691
1692         priv->ap_11n_enabled = 0;
1693         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1694
1695         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1696                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1697                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1698                 return -1;
1699         }
1700
1701         return 0;
1702 }
1703
1704 /* cfg80211 operation handler for start_ap.
1705  * Function sets beacon period, DTIM period, SSID and security into
1706  * AP config structure.
1707  * AP is configured with these settings and BSS is started.
1708  */
1709 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1710                                      struct net_device *dev,
1711                                      struct cfg80211_ap_settings *params)
1712 {
1713         struct mwifiex_uap_bss_param *bss_cfg;
1714         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1715
1716         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1717                 return -1;
1718
1719         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1720         if (!bss_cfg)
1721                 return -ENOMEM;
1722
1723         mwifiex_set_sys_config_invalid_data(bss_cfg);
1724
1725         if (params->beacon_interval)
1726                 bss_cfg->beacon_period = params->beacon_interval;
1727         if (params->dtim_period)
1728                 bss_cfg->dtim_period = params->dtim_period;
1729
1730         if (params->ssid && params->ssid_len) {
1731                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1732                 bss_cfg->ssid.ssid_len = params->ssid_len;
1733         }
1734         if (params->inactivity_timeout > 0) {
1735                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1736                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1737                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1738         }
1739
1740         switch (params->hidden_ssid) {
1741         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1742                 bss_cfg->bcast_ssid_ctl = 1;
1743                 break;
1744         case NL80211_HIDDEN_SSID_ZERO_LEN:
1745                 bss_cfg->bcast_ssid_ctl = 0;
1746                 break;
1747         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1748                 /* firmware doesn't support this type of hidden SSID */
1749         default:
1750                 kfree(bss_cfg);
1751                 return -EINVAL;
1752         }
1753
1754         mwifiex_uap_set_channel(bss_cfg, params->chandef);
1755         mwifiex_set_uap_rates(bss_cfg, params);
1756
1757         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1758                 kfree(bss_cfg);
1759                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1760                 return -1;
1761         }
1762
1763         mwifiex_set_ht_params(priv, bss_cfg, params);
1764
1765         if (priv->adapter->is_hw_11ac_capable) {
1766                 mwifiex_set_vht_params(priv, bss_cfg, params);
1767                 mwifiex_set_vht_width(priv, params->chandef.width,
1768                                       priv->ap_11ac_enabled);
1769         }
1770
1771         if (priv->ap_11ac_enabled)
1772                 mwifiex_set_11ac_ba_params(priv);
1773         else
1774                 mwifiex_set_ba_params(priv);
1775
1776         mwifiex_set_wmm_params(priv, bss_cfg, params);
1777
1778         if (mwifiex_is_11h_active(priv) &&
1779             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
1780                                            priv->bss_mode)) {
1781                 dev_dbg(priv->adapter->dev, "Disable 11h extensions in FW\n");
1782                 if (mwifiex_11h_activate(priv, false)) {
1783                         dev_err(priv->adapter->dev,
1784                                 "Failed to disable 11h extensions!!");
1785                         return -1;
1786                 }
1787                 priv->state_11h.is_11h_active = true;
1788         }
1789
1790         if (mwifiex_config_start_uap(priv, bss_cfg)) {
1791                 wiphy_err(wiphy, "Failed to start AP\n");
1792                 kfree(bss_cfg);
1793                 return -1;
1794         }
1795
1796         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1797                 return -1;
1798
1799         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1800         kfree(bss_cfg);
1801         return 0;
1802 }
1803
1804 /*
1805  * CFG802.11 operation handler for disconnection request.
1806  *
1807  * This function does not work when there is already a disconnection
1808  * procedure going on.
1809  */
1810 static int
1811 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1812                             u16 reason_code)
1813 {
1814         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1815
1816         if (mwifiex_deauthenticate(priv, NULL))
1817                 return -EFAULT;
1818
1819         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1820                 " reason code %d\n", priv->cfg_bssid, reason_code);
1821
1822         eth_zero_addr(priv->cfg_bssid);
1823         priv->hs2_enabled = false;
1824
1825         return 0;
1826 }
1827
1828 /*
1829  * This function informs the CFG802.11 subsystem of a new IBSS.
1830  *
1831  * The following information are sent to the CFG802.11 subsystem
1832  * to register the new IBSS. If we do not register the new IBSS,
1833  * a kernel panic will result.
1834  *      - SSID
1835  *      - SSID length
1836  *      - BSSID
1837  *      - Channel
1838  */
1839 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1840 {
1841         struct ieee80211_channel *chan;
1842         struct mwifiex_bss_info bss_info;
1843         struct cfg80211_bss *bss;
1844         int ie_len;
1845         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1846         enum ieee80211_band band;
1847
1848         if (mwifiex_get_bss_info(priv, &bss_info))
1849                 return -1;
1850
1851         ie_buf[0] = WLAN_EID_SSID;
1852         ie_buf[1] = bss_info.ssid.ssid_len;
1853
1854         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1855                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1856         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1857
1858         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1859         chan = __ieee80211_get_channel(priv->wdev.wiphy,
1860                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1861                                                        band));
1862
1863         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
1864                                   CFG80211_BSS_FTYPE_UNKNOWN,
1865                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1866                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1867         cfg80211_put_bss(priv->wdev.wiphy, bss);
1868         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1869
1870         return 0;
1871 }
1872
1873 /*
1874  * This function connects with a BSS.
1875  *
1876  * This function handles both Infra and Ad-Hoc modes. It also performs
1877  * validity checking on the provided parameters, disconnects from the
1878  * current BSS (if any), sets up the association/scan parameters,
1879  * including security settings, and performs specific SSID scan before
1880  * trying to connect.
1881  *
1882  * For Infra mode, the function returns failure if the specified SSID
1883  * is not found in scan table. However, for Ad-Hoc mode, it can create
1884  * the IBSS if it does not exist. On successful completion in either case,
1885  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1886  */
1887 static int
1888 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1889                        const u8 *ssid, const u8 *bssid, int mode,
1890                        struct ieee80211_channel *channel,
1891                        struct cfg80211_connect_params *sme, bool privacy)
1892 {
1893         struct cfg80211_ssid req_ssid;
1894         int ret, auth_type = 0;
1895         struct cfg80211_bss *bss = NULL;
1896         u8 is_scanning_required = 0;
1897
1898         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1899
1900         req_ssid.ssid_len = ssid_len;
1901         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1902                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1903                 return -EINVAL;
1904         }
1905
1906         memcpy(req_ssid.ssid, ssid, ssid_len);
1907         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1908                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1909                 return -EINVAL;
1910         }
1911
1912         /* As this is new association, clear locally stored
1913          * keys and security related flags */
1914         priv->sec_info.wpa_enabled = false;
1915         priv->sec_info.wpa2_enabled = false;
1916         priv->wep_key_curr_index = 0;
1917         priv->sec_info.encryption_mode = 0;
1918         priv->sec_info.is_authtype_auto = 0;
1919         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1920
1921         if (mode == NL80211_IFTYPE_ADHOC) {
1922                 /* "privacy" is set only for ad-hoc mode */
1923                 if (privacy) {
1924                         /*
1925                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1926                          * the firmware can find a matching network from the
1927                          * scan. The cfg80211 does not give us the encryption
1928                          * mode at this stage so just setting it to WEP here.
1929                          */
1930                         priv->sec_info.encryption_mode =
1931                                         WLAN_CIPHER_SUITE_WEP104;
1932                         priv->sec_info.authentication_mode =
1933                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1934                 }
1935
1936                 goto done;
1937         }
1938
1939         /* Now handle infra mode. "sme" is valid for infra mode only */
1940         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1941                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1942                 priv->sec_info.is_authtype_auto = 1;
1943         } else {
1944                 auth_type = sme->auth_type;
1945         }
1946
1947         if (sme->crypto.n_ciphers_pairwise) {
1948                 priv->sec_info.encryption_mode =
1949                                                 sme->crypto.ciphers_pairwise[0];
1950                 priv->sec_info.authentication_mode = auth_type;
1951         }
1952
1953         if (sme->crypto.cipher_group) {
1954                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1955                 priv->sec_info.authentication_mode = auth_type;
1956         }
1957         if (sme->ie)
1958                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1959
1960         if (sme->key) {
1961                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1962                         dev_dbg(priv->adapter->dev,
1963                                 "info: setting wep encryption"
1964                                 " with key len %d\n", sme->key_len);
1965                         priv->wep_key_curr_index = sme->key_idx;
1966                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1967                                                  sme->key_len, sme->key_idx,
1968                                                  NULL, 0);
1969                 }
1970         }
1971 done:
1972         /*
1973          * Scan entries are valid for some time (15 sec). So we can save one
1974          * active scan time if we just try cfg80211_get_bss first. If it fails
1975          * then request scan and cfg80211_get_bss() again for final output.
1976          */
1977         while (1) {
1978                 if (is_scanning_required) {
1979                         /* Do specific SSID scanning */
1980                         if (mwifiex_request_scan(priv, &req_ssid)) {
1981                                 dev_err(priv->adapter->dev, "scan error\n");
1982                                 return -EFAULT;
1983                         }
1984                 }
1985
1986                 /* Find the BSS we want using available scan results */
1987                 if (mode == NL80211_IFTYPE_ADHOC)
1988                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
1989                                                bssid, ssid, ssid_len,
1990                                                IEEE80211_BSS_TYPE_IBSS,
1991                                                IEEE80211_PRIVACY_ANY);
1992                 else
1993                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
1994                                                bssid, ssid, ssid_len,
1995                                                IEEE80211_BSS_TYPE_ESS,
1996                                                IEEE80211_PRIVACY_ANY);
1997
1998                 if (!bss) {
1999                         if (is_scanning_required) {
2000                                 dev_warn(priv->adapter->dev,
2001                                          "assoc: requested bss not found in scan results\n");
2002                                 break;
2003                         }
2004                         is_scanning_required = 1;
2005                 } else {
2006                         dev_dbg(priv->adapter->dev,
2007                                 "info: trying to associate to '%s' bssid %pM\n",
2008                                 (char *) req_ssid.ssid, bss->bssid);
2009                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2010                         break;
2011                 }
2012         }
2013
2014         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2015         if (ret)
2016                 return ret;
2017
2018         if (mode == NL80211_IFTYPE_ADHOC) {
2019                 /* Inform the BSS information to kernel, otherwise
2020                  * kernel will give a panic after successful assoc */
2021                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2022                         return -EFAULT;
2023         }
2024
2025         return ret;
2026 }
2027
2028 /*
2029  * CFG802.11 operation handler for association request.
2030  *
2031  * This function does not work when the current mode is set to Ad-Hoc, or
2032  * when there is already an association procedure going on. The given BSS
2033  * information is used to associate.
2034  */
2035 static int
2036 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2037                          struct cfg80211_connect_params *sme)
2038 {
2039         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2040         struct mwifiex_adapter *adapter = priv->adapter;
2041         int ret;
2042
2043         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2044                 wiphy_err(wiphy,
2045                           "%s: reject infra assoc request in non-STA role\n",
2046                           dev->name);
2047                 return -EINVAL;
2048         }
2049
2050         if (priv->wdev.current_bss) {
2051                 wiphy_warn(wiphy, "%s: already connected\n", dev->name);
2052                 return -EALREADY;
2053         }
2054
2055         if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2056                 wiphy_err(wiphy,
2057                           "%s: Ignore connection. Card removed or FW in bad state\n",
2058                           dev->name);
2059                 return -EFAULT;
2060         }
2061
2062         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
2063                   (char *) sme->ssid, sme->bssid);
2064
2065         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2066                                      priv->bss_mode, sme->channel, sme, 0);
2067         if (!ret) {
2068                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2069                                         NULL, 0, WLAN_STATUS_SUCCESS,
2070                                         GFP_KERNEL);
2071                 dev_dbg(priv->adapter->dev,
2072                         "info: associated to bssid %pM successfully\n",
2073                         priv->cfg_bssid);
2074                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2075                     priv->adapter->auto_tdls &&
2076                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2077                         mwifiex_setup_auto_tdls_timer(priv);
2078         } else {
2079                 dev_dbg(priv->adapter->dev,
2080                         "info: association to bssid %pM failed\n",
2081                         priv->cfg_bssid);
2082                 eth_zero_addr(priv->cfg_bssid);
2083
2084                 if (ret > 0)
2085                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2086                                                 NULL, 0, NULL, 0, ret,
2087                                                 GFP_KERNEL);
2088                 else
2089                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2090                                                 NULL, 0, NULL, 0,
2091                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2092                                                 GFP_KERNEL);
2093         }
2094
2095         return 0;
2096 }
2097
2098 /*
2099  * This function sets following parameters for ibss network.
2100  *  -  channel
2101  *  -  start band
2102  *  -  11n flag
2103  *  -  secondary channel offset
2104  */
2105 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2106                                    struct cfg80211_ibss_params *params)
2107 {
2108         struct wiphy *wiphy = priv->wdev.wiphy;
2109         struct mwifiex_adapter *adapter = priv->adapter;
2110         int index = 0, i;
2111         u8 config_bands = 0;
2112
2113         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2114                 if (!params->basic_rates) {
2115                         config_bands = BAND_B | BAND_G;
2116                 } else {
2117                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2118                                 /*
2119                                  * Rates below 6 Mbps in the table are CCK
2120                                  * rates; 802.11b and from 6 they are OFDM;
2121                                  * 802.11G
2122                                  */
2123                                 if (mwifiex_rates[i].bitrate == 60) {
2124                                         index = 1 << i;
2125                                         break;
2126                                 }
2127                         }
2128
2129                         if (params->basic_rates < index) {
2130                                 config_bands = BAND_B;
2131                         } else {
2132                                 config_bands = BAND_G;
2133                                 if (params->basic_rates % index)
2134                                         config_bands |= BAND_B;
2135                         }
2136                 }
2137
2138                 if (cfg80211_get_chandef_type(&params->chandef) !=
2139                                                 NL80211_CHAN_NO_HT)
2140                         config_bands |= BAND_G | BAND_GN;
2141         } else {
2142                 if (cfg80211_get_chandef_type(&params->chandef) ==
2143                                                 NL80211_CHAN_NO_HT)
2144                         config_bands = BAND_A;
2145                 else
2146                         config_bands = BAND_AN | BAND_A;
2147         }
2148
2149         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2150                 adapter->config_bands = config_bands;
2151                 adapter->adhoc_start_band = config_bands;
2152
2153                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2154                         adapter->adhoc_11n_enabled = true;
2155                 else
2156                         adapter->adhoc_11n_enabled = false;
2157         }
2158
2159         adapter->sec_chan_offset =
2160                 mwifiex_chan_type_to_sec_chan_offset(
2161                         cfg80211_get_chandef_type(&params->chandef));
2162         priv->adhoc_channel = ieee80211_frequency_to_channel(
2163                                 params->chandef.chan->center_freq);
2164
2165         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
2166                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
2167
2168         return 0;
2169 }
2170
2171 /*
2172  * CFG802.11 operation handler to join an IBSS.
2173  *
2174  * This function does not work in any mode other than Ad-Hoc, or if
2175  * a join operation is already in progress.
2176  */
2177 static int
2178 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2179                            struct cfg80211_ibss_params *params)
2180 {
2181         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2182         int ret = 0;
2183
2184         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2185                 wiphy_err(wiphy, "request to join ibss received "
2186                                 "when station is not in ibss mode\n");
2187                 goto done;
2188         }
2189
2190         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
2191                   (char *) params->ssid, params->bssid);
2192
2193         mwifiex_set_ibss_params(priv, params);
2194
2195         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2196                                      params->bssid, priv->bss_mode,
2197                                      params->chandef.chan, NULL,
2198                                      params->privacy);
2199 done:
2200         if (!ret) {
2201                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2202                                      params->chandef.chan, GFP_KERNEL);
2203                 dev_dbg(priv->adapter->dev,
2204                         "info: joined/created adhoc network with bssid"
2205                         " %pM successfully\n", priv->cfg_bssid);
2206         } else {
2207                 dev_dbg(priv->adapter->dev,
2208                         "info: failed creating/joining adhoc network\n");
2209         }
2210
2211         return ret;
2212 }
2213
2214 /*
2215  * CFG802.11 operation handler to leave an IBSS.
2216  *
2217  * This function does not work if a leave operation is
2218  * already in progress.
2219  */
2220 static int
2221 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2222 {
2223         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2224
2225         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
2226                   priv->cfg_bssid);
2227         if (mwifiex_deauthenticate(priv, NULL))
2228                 return -EFAULT;
2229
2230         eth_zero_addr(priv->cfg_bssid);
2231
2232         return 0;
2233 }
2234
2235 /*
2236  * CFG802.11 operation handler for scan request.
2237  *
2238  * This function issues a scan request to the firmware based upon
2239  * the user specified scan configuration. On successfull completion,
2240  * it also informs the results.
2241  */
2242 static int
2243 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2244                       struct cfg80211_scan_request *request)
2245 {
2246         struct net_device *dev = request->wdev->netdev;
2247         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2248         int i, offset, ret;
2249         struct ieee80211_channel *chan;
2250         struct ieee_types_header *ie;
2251         struct mwifiex_user_scan_cfg *user_scan_cfg;
2252
2253         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
2254
2255         /* Block scan request if scan operation or scan cleanup when interface
2256          * is disabled is in process
2257          */
2258         if (priv->scan_request || priv->scan_aborting) {
2259                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
2260                 return -EBUSY;
2261         }
2262
2263         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2264         if (!user_scan_cfg)
2265                 return -ENOMEM;
2266
2267         priv->scan_request = request;
2268
2269         user_scan_cfg->num_ssids = request->n_ssids;
2270         user_scan_cfg->ssid_list = request->ssids;
2271
2272         if (request->ie && request->ie_len) {
2273                 offset = 0;
2274                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2275                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2276                                 continue;
2277                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2278                         ie = (struct ieee_types_header *)(request->ie + offset);
2279                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2280                         offset += sizeof(*ie) + ie->len;
2281
2282                         if (offset >= request->ie_len)
2283                                 break;
2284                 }
2285         }
2286
2287         for (i = 0; i < min_t(u32, request->n_channels,
2288                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2289                 chan = request->channels[i];
2290                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2291                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2292
2293                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2294                         user_scan_cfg->chan_list[i].scan_type =
2295                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2296                 else
2297                         user_scan_cfg->chan_list[i].scan_type =
2298                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2299
2300                 user_scan_cfg->chan_list[i].scan_time = 0;
2301         }
2302
2303         if (priv->adapter->scan_chan_gap_enabled &&
2304             mwifiex_is_any_intf_active(priv))
2305                 user_scan_cfg->scan_chan_gap =
2306                                               priv->adapter->scan_chan_gap_time;
2307
2308         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2309         kfree(user_scan_cfg);
2310         if (ret) {
2311                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2312                 priv->scan_aborting = false;
2313                 priv->scan_request = NULL;
2314                 return ret;
2315         }
2316
2317         if (request->ie && request->ie_len) {
2318                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2319                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2320                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2321                                 memset(&priv->vs_ie[i].ie, 0,
2322                                        MWIFIEX_MAX_VSIE_LEN);
2323                         }
2324                 }
2325         }
2326         return 0;
2327 }
2328
2329 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2330                                    struct mwifiex_private *priv)
2331 {
2332         struct mwifiex_adapter *adapter = priv->adapter;
2333
2334         vht_info->vht_supported = true;
2335
2336         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2337         /* Update MCS support for VHT */
2338         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2339                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2340         vht_info->vht_mcs.rx_highest = 0;
2341         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2342                                 adapter->hw_dot_11ac_mcs_support >> 16);
2343         vht_info->vht_mcs.tx_highest = 0;
2344 }
2345
2346 /*
2347  * This function sets up the CFG802.11 specific HT capability fields
2348  * with default values.
2349  *
2350  * The following default values are set -
2351  *      - HT Supported = True
2352  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2353  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2354  *      - HT Capabilities supported by firmware
2355  *      - MCS information, Rx mask = 0xff
2356  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2357  */
2358 static void
2359 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2360                       struct mwifiex_private *priv)
2361 {
2362         int rx_mcs_supp;
2363         struct ieee80211_mcs_info mcs_set;
2364         u8 *mcs = (u8 *)&mcs_set;
2365         struct mwifiex_adapter *adapter = priv->adapter;
2366
2367         ht_info->ht_supported = true;
2368         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2369         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2370
2371         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2372
2373         /* Fill HT capability information */
2374         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2375                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2376         else
2377                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2378
2379         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2380                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2381         else
2382                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2383
2384         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2385                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2386         else
2387                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2388
2389         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2390                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2391         else
2392                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2393
2394         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2395                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2396         else
2397                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2398
2399         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2400                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2401         else
2402                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2403
2404         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2405                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2406         else
2407                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2408
2409         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2410                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2411         else
2412                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2413
2414         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2415         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2416
2417         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2418         /* Set MCS for 1x1/2x2 */
2419         memset(mcs, 0xff, rx_mcs_supp);
2420         /* Clear all the other values */
2421         memset(&mcs[rx_mcs_supp], 0,
2422                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2423         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2424             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2425                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2426                 SETHT_MCS32(mcs_set.rx_mask);
2427
2428         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2429
2430         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2431 }
2432
2433 /*
2434  *  create a new virtual interface with the given name and name assign type
2435  */
2436 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2437                                               const char *name,
2438                                               unsigned char name_assign_type,
2439                                               enum nl80211_iftype type,
2440                                               u32 *flags,
2441                                               struct vif_params *params)
2442 {
2443         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2444         struct mwifiex_private *priv;
2445         struct net_device *dev;
2446         void *mdev_priv;
2447
2448         if (!adapter)
2449                 return ERR_PTR(-EFAULT);
2450
2451         switch (type) {
2452         case NL80211_IFTYPE_UNSPECIFIED:
2453         case NL80211_IFTYPE_STATION:
2454         case NL80211_IFTYPE_ADHOC:
2455                 if (adapter->curr_iface_comb.sta_intf ==
2456                     adapter->iface_limit.sta_intf) {
2457                         wiphy_err(wiphy,
2458                                   "cannot create multiple sta/adhoc ifaces\n");
2459                         return ERR_PTR(-EINVAL);
2460                 }
2461
2462                 priv = mwifiex_get_unused_priv(adapter);
2463                 if (!priv) {
2464                         wiphy_err(wiphy,
2465                                   "could not get free private struct\n");
2466                         return ERR_PTR(-EFAULT);
2467                 }
2468
2469                 priv->wdev.wiphy = wiphy;
2470                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2471
2472                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2473                         priv->bss_mode = NL80211_IFTYPE_STATION;
2474                 else
2475                         priv->bss_mode = type;
2476
2477                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2478                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2479                 priv->bss_priority = 0;
2480                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2481                 priv->bss_num = 0;
2482
2483                 break;
2484         case NL80211_IFTYPE_AP:
2485                 if (adapter->curr_iface_comb.uap_intf ==
2486                     adapter->iface_limit.uap_intf) {
2487                         wiphy_err(wiphy,
2488                                   "cannot create multiple AP ifaces\n");
2489                         return ERR_PTR(-EINVAL);
2490                 }
2491
2492                 priv = mwifiex_get_unused_priv(adapter);
2493                 if (!priv) {
2494                         wiphy_err(wiphy,
2495                                   "could not get free private struct\n");
2496                         return ERR_PTR(-EFAULT);
2497                 }
2498
2499                 priv->wdev.wiphy = wiphy;
2500                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2501
2502                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2503                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2504                 priv->bss_priority = 0;
2505                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2506                 priv->bss_started = 0;
2507                 priv->bss_num = 0;
2508                 priv->bss_mode = type;
2509
2510                 break;
2511         case NL80211_IFTYPE_P2P_CLIENT:
2512                 if (adapter->curr_iface_comb.p2p_intf ==
2513                     adapter->iface_limit.p2p_intf) {
2514                         wiphy_err(wiphy,
2515                                   "cannot create multiple P2P ifaces\n");
2516                         return ERR_PTR(-EINVAL);
2517                 }
2518
2519                 priv = mwifiex_get_unused_priv(adapter);
2520                 if (!priv) {
2521                         wiphy_err(wiphy,
2522                                   "could not get free private struct\n");
2523                         return ERR_PTR(-EFAULT);
2524                 }
2525
2526                 priv->wdev.wiphy = wiphy;
2527                 /* At start-up, wpa_supplicant tries to change the interface
2528                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2529                  */
2530                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2531                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2532
2533                 /* Setting bss_type to P2P tells firmware that this interface
2534                  * is receiving P2P peers found during find phase and doing
2535                  * action frame handshake.
2536                  */
2537                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2538
2539                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2540                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2541                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2542                 priv->bss_started = 0;
2543                 priv->bss_num = 0;
2544
2545                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2546                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2547                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2548                         return ERR_PTR(-EFAULT);
2549                 }
2550
2551                 break;
2552         default:
2553                 wiphy_err(wiphy, "type not supported\n");
2554                 return ERR_PTR(-EINVAL);
2555         }
2556
2557         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2558                                name_assign_type, ether_setup,
2559                                IEEE80211_NUM_ACS, 1);
2560         if (!dev) {
2561                 wiphy_err(wiphy, "no memory available for netdevice\n");
2562                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2563                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2564                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2565                 return ERR_PTR(-ENOMEM);
2566         }
2567
2568         mwifiex_init_priv_params(priv, dev);
2569         priv->netdev = dev;
2570
2571         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2572         if (adapter->is_hw_11ac_capable)
2573                 mwifiex_setup_vht_caps(
2574                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2575
2576         if (adapter->config_bands & BAND_A)
2577                 mwifiex_setup_ht_caps(
2578                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2579
2580         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2581                 mwifiex_setup_vht_caps(
2582                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2583
2584         dev_net_set(dev, wiphy_net(wiphy));
2585         dev->ieee80211_ptr = &priv->wdev;
2586         dev->ieee80211_ptr->iftype = priv->bss_mode;
2587         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2588         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2589
2590         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2591         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2592         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2593         dev->ethtool_ops = &mwifiex_ethtool_ops;
2594
2595         mdev_priv = netdev_priv(dev);
2596         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2597
2598         SET_NETDEV_DEV(dev, adapter->dev);
2599
2600         /* Register network device */
2601         if (register_netdevice(dev)) {
2602                 wiphy_err(wiphy, "cannot register virtual network device\n");
2603                 free_netdev(dev);
2604                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2605                 priv->netdev = NULL;
2606                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2607                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2608                 return ERR_PTR(-EFAULT);
2609         }
2610
2611         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2612                                                   WQ_HIGHPRI |
2613                                                   WQ_MEM_RECLAIM |
2614                                                   WQ_UNBOUND, 1, name);
2615         if (!priv->dfs_cac_workqueue) {
2616                 wiphy_err(wiphy, "cannot register virtual network device\n");
2617                 free_netdev(dev);
2618                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2619                 priv->netdev = NULL;
2620                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2621                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2622                 return ERR_PTR(-ENOMEM);
2623         }
2624
2625         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2626
2627         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2628                                                       WQ_HIGHPRI | WQ_UNBOUND |
2629                                                       WQ_MEM_RECLAIM, 1, name);
2630         if (!priv->dfs_chan_sw_workqueue) {
2631                 wiphy_err(wiphy, "cannot register virtual network device\n");
2632                 free_netdev(dev);
2633                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2634                 priv->netdev = NULL;
2635                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2636                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2637                 return ERR_PTR(-ENOMEM);
2638         }
2639
2640         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
2641                           mwifiex_dfs_chan_sw_work_queue);
2642
2643         sema_init(&priv->async_sem, 1);
2644
2645         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2646
2647 #ifdef CONFIG_DEBUG_FS
2648         mwifiex_dev_debugfs_init(priv);
2649 #endif
2650
2651         switch (type) {
2652         case NL80211_IFTYPE_UNSPECIFIED:
2653         case NL80211_IFTYPE_STATION:
2654         case NL80211_IFTYPE_ADHOC:
2655                 adapter->curr_iface_comb.sta_intf++;
2656                 break;
2657         case NL80211_IFTYPE_AP:
2658                 adapter->curr_iface_comb.uap_intf++;
2659                 break;
2660         case NL80211_IFTYPE_P2P_CLIENT:
2661                 adapter->curr_iface_comb.p2p_intf++;
2662                 break;
2663         default:
2664                 wiphy_err(wiphy, "type not supported\n");
2665                 return ERR_PTR(-EINVAL);
2666         }
2667
2668         return &priv->wdev;
2669 }
2670 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2671
2672 /*
2673  * del_virtual_intf: remove the virtual interface determined by dev
2674  */
2675 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2676 {
2677         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2678         struct mwifiex_adapter *adapter = priv->adapter;
2679
2680 #ifdef CONFIG_DEBUG_FS
2681         mwifiex_dev_debugfs_remove(priv);
2682 #endif
2683
2684         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2685
2686         if (netif_carrier_ok(priv->netdev))
2687                 netif_carrier_off(priv->netdev);
2688
2689         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2690                 unregister_netdevice(wdev->netdev);
2691
2692         if (priv->dfs_cac_workqueue) {
2693                 flush_workqueue(priv->dfs_cac_workqueue);
2694                 destroy_workqueue(priv->dfs_cac_workqueue);
2695                 priv->dfs_cac_workqueue = NULL;
2696         }
2697
2698         if (priv->dfs_chan_sw_workqueue) {
2699                 flush_workqueue(priv->dfs_chan_sw_workqueue);
2700                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
2701                 priv->dfs_chan_sw_workqueue = NULL;
2702         }
2703         /* Clear the priv in adapter */
2704         priv->netdev->ieee80211_ptr = NULL;
2705         priv->netdev = NULL;
2706         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2707
2708         priv->media_connected = false;
2709
2710         switch (priv->bss_mode) {
2711         case NL80211_IFTYPE_UNSPECIFIED:
2712         case NL80211_IFTYPE_STATION:
2713         case NL80211_IFTYPE_ADHOC:
2714                 adapter->curr_iface_comb.sta_intf++;
2715                 break;
2716         case NL80211_IFTYPE_AP:
2717                 adapter->curr_iface_comb.uap_intf++;
2718                 break;
2719         case NL80211_IFTYPE_P2P_CLIENT:
2720         case NL80211_IFTYPE_P2P_GO:
2721                 adapter->curr_iface_comb.p2p_intf++;
2722                 break;
2723         default:
2724                 dev_err(adapter->dev, "del_virtual_intf: type not supported\n");
2725                 break;
2726         }
2727
2728         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2729
2730         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2731             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2732                 kfree(priv->hist_data);
2733
2734         return 0;
2735 }
2736 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2737
2738 static bool
2739 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2740                              u8 max_byte_seq)
2741 {
2742         int j, k, valid_byte_cnt = 0;
2743         bool dont_care_byte = false;
2744
2745         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2746                 for (k = 0; k < 8; k++) {
2747                         if (pat->mask[j] & 1 << k) {
2748                                 memcpy(byte_seq + valid_byte_cnt,
2749                                        &pat->pattern[j * 8 + k], 1);
2750                                 valid_byte_cnt++;
2751                                 if (dont_care_byte)
2752                                         return false;
2753                         } else {
2754                                 if (valid_byte_cnt)
2755                                         dont_care_byte = true;
2756                         }
2757
2758                         if (valid_byte_cnt > max_byte_seq)
2759                                 return false;
2760                 }
2761         }
2762
2763         byte_seq[max_byte_seq] = valid_byte_cnt;
2764
2765         return true;
2766 }
2767
2768 #ifdef CONFIG_PM
2769 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
2770                                            struct mwifiex_mef_entry *mef_entry)
2771 {
2772         int i, filt_num = 0, num_ipv4 = 0;
2773         struct in_device *in_dev;
2774         struct in_ifaddr *ifa;
2775         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
2776         struct mwifiex_adapter *adapter = priv->adapter;
2777
2778         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2779         mef_entry->action = MEF_ACTION_AUTO_ARP;
2780
2781         /* Enable ARP offload feature */
2782         memset(ips, 0, sizeof(ips));
2783         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
2784                 if (adapter->priv[i]->netdev) {
2785                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
2786                         if (!in_dev)
2787                                 continue;
2788                         ifa = in_dev->ifa_list;
2789                         if (!ifa || !ifa->ifa_local)
2790                                 continue;
2791                         ips[i] = ifa->ifa_local;
2792                         num_ipv4++;
2793                 }
2794         }
2795
2796         for (i = 0; i < num_ipv4; i++) {
2797                 if (!ips[i])
2798                         continue;
2799                 mef_entry->filter[filt_num].repeat = 1;
2800                 memcpy(mef_entry->filter[filt_num].byte_seq,
2801                        (u8 *)&ips[i], sizeof(ips[i]));
2802                 mef_entry->filter[filt_num].
2803                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2804                         sizeof(ips[i]);
2805                 mef_entry->filter[filt_num].offset = 46;
2806                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2807                 if (filt_num) {
2808                         mef_entry->filter[filt_num].filt_action =
2809                                 TYPE_OR;
2810                 }
2811                 filt_num++;
2812         }
2813
2814         mef_entry->filter[filt_num].repeat = 1;
2815         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
2816         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
2817         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
2818         mef_entry->filter[filt_num].offset = 20;
2819         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2820         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2821 }
2822
2823 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
2824                                         struct mwifiex_ds_mef_cfg *mef_cfg,
2825                                         struct mwifiex_mef_entry *mef_entry,
2826                                         struct cfg80211_wowlan *wowlan)
2827 {
2828         int i, filt_num = 0, ret = 0;
2829         bool first_pat = true;
2830         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2831         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2832         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2833
2834         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2835         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2836
2837         for (i = 0; i < wowlan->n_patterns; i++) {
2838                 memset(byte_seq, 0, sizeof(byte_seq));
2839                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2840                                         byte_seq,
2841                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
2842                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2843                         kfree(mef_entry);
2844                         return -EOPNOTSUPP;
2845                 }
2846
2847                 if (!wowlan->patterns[i].pkt_offset) {
2848                         if (!(byte_seq[0] & 0x01) &&
2849                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2850                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
2851                                 continue;
2852                         } else if (is_broadcast_ether_addr(byte_seq)) {
2853                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
2854                                 continue;
2855                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2856                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2857                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2858                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2859                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
2860                                 continue;
2861                         }
2862                 }
2863                 mef_entry->filter[filt_num].repeat = 1;
2864                 mef_entry->filter[filt_num].offset =
2865                         wowlan->patterns[i].pkt_offset;
2866                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2867                                 sizeof(byte_seq));
2868                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2869
2870                 if (first_pat)
2871                         first_pat = false;
2872                 else
2873                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2874
2875                 filt_num++;
2876         }
2877
2878         if (wowlan->magic_pkt) {
2879                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
2880                 mef_entry->filter[filt_num].repeat = 16;
2881                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2882                                 ETH_ALEN);
2883                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2884                         ETH_ALEN;
2885                 mef_entry->filter[filt_num].offset = 28;
2886                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2887                 if (filt_num)
2888                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2889
2890                 filt_num++;
2891                 mef_entry->filter[filt_num].repeat = 16;
2892                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2893                                 ETH_ALEN);
2894                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2895                         ETH_ALEN;
2896                 mef_entry->filter[filt_num].offset = 56;
2897                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2898                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2899         }
2900         return ret;
2901 }
2902
2903 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
2904                                   struct cfg80211_wowlan *wowlan)
2905 {
2906         int ret = 0, num_entries = 1;
2907         struct mwifiex_ds_mef_cfg mef_cfg;
2908         struct mwifiex_mef_entry *mef_entry;
2909
2910         if (wowlan->n_patterns || wowlan->magic_pkt)
2911                 num_entries++;
2912
2913         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
2914         if (!mef_entry)
2915                 return -ENOMEM;
2916
2917         memset(&mef_cfg, 0, sizeof(mef_cfg));
2918         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
2919                 MWIFIEX_CRITERIA_UNICAST;
2920         mef_cfg.num_entries = num_entries;
2921         mef_cfg.mef_entry = mef_entry;
2922
2923         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
2924
2925         if (wowlan->n_patterns || wowlan->magic_pkt)
2926                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
2927                                                    &mef_entry[1], wowlan);
2928
2929         if (!mef_cfg.criteria)
2930                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2931                         MWIFIEX_CRITERIA_UNICAST |
2932                         MWIFIEX_CRITERIA_MULTICAST;
2933
2934         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2935                         HostCmd_ACT_GEN_SET, 0,
2936                         &mef_cfg, true);
2937         kfree(mef_entry);
2938         return ret;
2939 }
2940
2941 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2942                                     struct cfg80211_wowlan *wowlan)
2943 {
2944         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2945         struct mwifiex_ds_hs_cfg hs_cfg;
2946         int i, ret = 0;
2947         struct mwifiex_private *priv;
2948
2949         for (i = 0; i < adapter->priv_num; i++) {
2950                 priv = adapter->priv[i];
2951                 mwifiex_abort_cac(priv);
2952         }
2953
2954         mwifiex_cancel_all_pending_cmd(adapter);
2955
2956         if (!wowlan) {
2957                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2958                 return 0;
2959         }
2960
2961         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2962
2963         if (!priv->media_connected) {
2964                 dev_warn(adapter->dev,
2965                          "Can not configure WOWLAN in disconnected state\n");
2966                 return 0;
2967         }
2968
2969         ret = mwifiex_set_mef_filter(priv, wowlan);
2970         if (ret) {
2971                 dev_err(adapter->dev, "Failed to set MEF filter\n");
2972                 return ret;
2973         }
2974
2975         if (wowlan->disconnect) {
2976                 memset(&hs_cfg, 0, sizeof(hs_cfg));
2977                 hs_cfg.is_invoke_hostcmd = false;
2978                 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
2979                 hs_cfg.gpio = HS_CFG_GPIO_DEF;
2980                 hs_cfg.gap = HS_CFG_GAP_DEF;
2981                 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
2982                                             MWIFIEX_SYNC_CMD, &hs_cfg);
2983                 if (ret) {
2984                         dev_err(adapter->dev, "Failed to set HS params\n");
2985                         return ret;
2986                 }
2987         }
2988
2989         return ret;
2990 }
2991
2992 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2993 {
2994         return 0;
2995 }
2996
2997 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2998                                        bool enabled)
2999 {
3000         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3001
3002         device_set_wakeup_enable(adapter->dev, enabled);
3003 }
3004 #endif
3005
3006 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3007 {
3008         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3009         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3010         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3011
3012         if ((byte_seq[0] & 0x01) &&
3013             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3014                 return PACKET_TYPE_UNICAST;
3015         else if (!memcmp(byte_seq, bc_mac, 4))
3016                 return PACKET_TYPE_BROADCAST;
3017         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3018                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3019                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3020                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3021                 return PACKET_TYPE_MULTICAST;
3022
3023         return 0;
3024 }
3025
3026 static int
3027 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3028                                 struct cfg80211_coalesce_rules *crule,
3029                                 struct mwifiex_coalesce_rule *mrule)
3030 {
3031         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3032         struct filt_field_param *param;
3033         int i;
3034
3035         mrule->max_coalescing_delay = crule->delay;
3036
3037         param = mrule->params;
3038
3039         for (i = 0; i < crule->n_patterns; i++) {
3040                 memset(byte_seq, 0, sizeof(byte_seq));
3041                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3042                                                   byte_seq,
3043                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3044                         dev_err(priv->adapter->dev, "Pattern not supported\n");
3045                         return -EOPNOTSUPP;
3046                 }
3047
3048                 if (!crule->patterns[i].pkt_offset) {
3049                         u8 pkt_type;
3050
3051                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3052                         if (pkt_type && mrule->pkt_type) {
3053                                 dev_err(priv->adapter->dev,
3054                                         "Multiple packet types not allowed\n");
3055                                 return -EOPNOTSUPP;
3056                         } else if (pkt_type) {
3057                                 mrule->pkt_type = pkt_type;
3058                                 continue;
3059                         }
3060                 }
3061
3062                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3063                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3064                 else
3065                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3066
3067                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3068                 memcpy(param->operand_byte_stream, byte_seq,
3069                        param->operand_len);
3070                 param->offset = crule->patterns[i].pkt_offset;
3071                 param++;
3072
3073                 mrule->num_of_fields++;
3074         }
3075
3076         if (!mrule->pkt_type) {
3077                 dev_err(priv->adapter->dev,
3078                         "Packet type can not be determined\n");
3079                 return -EOPNOTSUPP;
3080         }
3081
3082         return 0;
3083 }
3084
3085 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3086                                          struct cfg80211_coalesce *coalesce)
3087 {
3088         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3089         int i, ret;
3090         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3091         struct mwifiex_private *priv =
3092                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3093
3094         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3095         if (!coalesce) {
3096                 dev_dbg(adapter->dev,
3097                         "Disable coalesce and reset all previous rules\n");
3098                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3099                                         HostCmd_ACT_GEN_SET, 0,
3100                                         &coalesce_cfg, true);
3101         }
3102
3103         coalesce_cfg.num_of_rules = coalesce->n_rules;
3104         for (i = 0; i < coalesce->n_rules; i++) {
3105                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3106                                                       &coalesce_cfg.rule[i]);
3107                 if (ret) {
3108                         dev_err(priv->adapter->dev,
3109                                 "Recheck the patterns provided for rule %d\n",
3110                                 i + 1);
3111                         return ret;
3112                 }
3113         }
3114
3115         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3116                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3117 }
3118
3119 /* cfg80211 ops handler for tdls_mgmt.
3120  * Function prepares TDLS action frame packets and forwards them to FW
3121  */
3122 static int
3123 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3124                            const u8 *peer, u8 action_code, u8 dialog_token,
3125                            u16 status_code, u32 peer_capability,
3126                            bool initiator, const u8 *extra_ies,
3127                            size_t extra_ies_len)
3128 {
3129         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3130         int ret;
3131
3132         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3133                 return -ENOTSUPP;
3134
3135         /* make sure we are in station mode and connected */
3136         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3137                 return -ENOTSUPP;
3138
3139         switch (action_code) {
3140         case WLAN_TDLS_SETUP_REQUEST:
3141                 dev_dbg(priv->adapter->dev,
3142                         "Send TDLS Setup Request to %pM status_code=%d\n", peer,
3143                          status_code);
3144                 mwifiex_add_auto_tdls_peer(priv, peer);
3145                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3146                                                    dialog_token, status_code,
3147                                                    extra_ies, extra_ies_len);
3148                 break;
3149         case WLAN_TDLS_SETUP_RESPONSE:
3150                 mwifiex_add_auto_tdls_peer(priv, peer);
3151                 dev_dbg(priv->adapter->dev,
3152                         "Send TDLS Setup Response to %pM status_code=%d\n",
3153                         peer, status_code);
3154                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3155                                                    dialog_token, status_code,
3156                                                    extra_ies, extra_ies_len);
3157                 break;
3158         case WLAN_TDLS_SETUP_CONFIRM:
3159                 dev_dbg(priv->adapter->dev,
3160                         "Send TDLS Confirm to %pM status_code=%d\n", peer,
3161                         status_code);
3162                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3163                                                    dialog_token, status_code,
3164                                                    extra_ies, extra_ies_len);
3165                 break;
3166         case WLAN_TDLS_TEARDOWN:
3167                 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
3168                         peer);
3169                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3170                                                    dialog_token, status_code,
3171                                                    extra_ies, extra_ies_len);
3172                 break;
3173         case WLAN_TDLS_DISCOVERY_REQUEST:
3174                 dev_dbg(priv->adapter->dev,
3175                         "Send TDLS Discovery Request to %pM\n", peer);
3176                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3177                                                    dialog_token, status_code,
3178                                                    extra_ies, extra_ies_len);
3179                 break;
3180         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3181                 dev_dbg(priv->adapter->dev,
3182                         "Send TDLS Discovery Response to %pM\n", peer);
3183                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3184                                                    dialog_token, status_code,
3185                                                    extra_ies, extra_ies_len);
3186                 break;
3187         default:
3188                 dev_warn(priv->adapter->dev,
3189                          "Unknown TDLS mgmt/action frame %pM\n", peer);
3190                 ret = -EINVAL;
3191                 break;
3192         }
3193
3194         return ret;
3195 }
3196
3197 static int
3198 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3199                            const u8 *peer, enum nl80211_tdls_operation action)
3200 {
3201         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3202
3203         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3204             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3205                 return -ENOTSUPP;
3206
3207         /* make sure we are in station mode and connected */
3208         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3209                 return -ENOTSUPP;
3210
3211         dev_dbg(priv->adapter->dev,
3212                 "TDLS peer=%pM, oper=%d\n", peer, action);
3213
3214         switch (action) {
3215         case NL80211_TDLS_ENABLE_LINK:
3216                 action = MWIFIEX_TDLS_ENABLE_LINK;
3217                 break;
3218         case NL80211_TDLS_DISABLE_LINK:
3219                 action = MWIFIEX_TDLS_DISABLE_LINK;
3220                 break;
3221         case NL80211_TDLS_TEARDOWN:
3222                 /* shouldn't happen!*/
3223                 dev_warn(priv->adapter->dev,
3224                          "tdls_oper: teardown from driver not supported\n");
3225                 return -EINVAL;
3226         case NL80211_TDLS_SETUP:
3227                 /* shouldn't happen!*/
3228                 dev_warn(priv->adapter->dev,
3229                          "tdls_oper: setup from driver not supported\n");
3230                 return -EINVAL;
3231         case NL80211_TDLS_DISCOVERY_REQ:
3232                 /* shouldn't happen!*/
3233                 dev_warn(priv->adapter->dev,
3234                          "tdls_oper: discovery from driver not supported\n");
3235                 return -EINVAL;
3236         default:
3237                 dev_err(priv->adapter->dev,
3238                         "tdls_oper: operation not supported\n");
3239                 return -ENOTSUPP;
3240         }
3241
3242         return mwifiex_tdls_oper(priv, peer, action);
3243 }
3244
3245 static int
3246 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3247                              const u8 *mac, struct station_parameters *params)
3248 {
3249         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3250
3251         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3252                 return -ENOTSUPP;
3253
3254         /* make sure we are in station mode and connected */
3255         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3256                 return -ENOTSUPP;
3257
3258         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3259 }
3260
3261 static int
3262 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3263                                 struct cfg80211_csa_settings *params)
3264 {
3265         struct ieee_types_header *chsw_ie;
3266         struct ieee80211_channel_sw_ie *channel_sw;
3267         int chsw_msec;
3268         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3269
3270         if (priv->adapter->scan_processing) {
3271                 dev_err(priv->adapter->dev,
3272                         "radar detection: scan in process...\n");
3273                 return -EBUSY;
3274         }
3275
3276         if (priv->wdev.cac_started)
3277                 return -EBUSY;
3278
3279         if (cfg80211_chandef_identical(&params->chandef,
3280                                        &priv->dfs_chandef))
3281                 return -EINVAL;
3282
3283         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3284                                            params->beacon_csa.tail,
3285                                            params->beacon_csa.tail_len);
3286         if (!chsw_ie) {
3287                 dev_err(priv->adapter->dev,
3288                         "Could not parse channel switch announcement IE\n");
3289                 return -EINVAL;
3290         }
3291
3292         channel_sw = (void *)(chsw_ie + 1);
3293         if (channel_sw->mode) {
3294                 if (netif_carrier_ok(priv->netdev))
3295                         netif_carrier_off(priv->netdev);
3296                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3297         }
3298
3299         if (mwifiex_del_mgmt_ies(priv))
3300                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
3301
3302         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3303                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
3304                 return -EFAULT;
3305         }
3306
3307         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3308         memcpy(&priv->beacon_after, &params->beacon_after,
3309                sizeof(priv->beacon_after));
3310
3311         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3312         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3313                            msecs_to_jiffies(chsw_msec));
3314         return 0;
3315 }
3316
3317 static int
3318 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3319                                        struct net_device *dev,
3320                                        struct cfg80211_chan_def *chandef,
3321                                        u32 cac_time_ms)
3322 {
3323         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3324         struct mwifiex_radar_params radar_params;
3325
3326         if (priv->adapter->scan_processing) {
3327                 dev_err(priv->adapter->dev,
3328                         "radar detection: scan already in process...\n");
3329                 return -EBUSY;
3330         }
3331
3332         if (!mwifiex_is_11h_active(priv)) {
3333                 dev_dbg(priv->adapter->dev, "Enable 11h extensions in FW\n");
3334                 if (mwifiex_11h_activate(priv, true)) {
3335                         dev_err(priv->adapter->dev,
3336                                 "Failed to activate 11h extensions!!");
3337                         return -1;
3338                 }
3339                 priv->state_11h.is_11h_active = true;
3340         }
3341
3342         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3343         radar_params.chandef = chandef;
3344         radar_params.cac_time_ms = cac_time_ms;
3345
3346         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3347
3348         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3349                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3350                 return -1;
3351
3352         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3353                            msecs_to_jiffies(cac_time_ms));
3354         return 0;
3355 }
3356
3357 static int
3358 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3359                                 const u8 *mac,
3360                                 struct station_parameters *params)
3361 {
3362         int ret;
3363         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3364
3365         /* we support change_station handler only for TDLS peers*/
3366         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3367                 return -ENOTSUPP;
3368
3369         /* make sure we are in station mode and connected */
3370         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3371                 return -ENOTSUPP;
3372
3373         priv->sta_params = params;
3374
3375         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3376         priv->sta_params = NULL;
3377
3378         return ret;
3379 }
3380
3381 /* station cfg80211 operations */
3382 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3383         .add_virtual_intf = mwifiex_add_virtual_intf,
3384         .del_virtual_intf = mwifiex_del_virtual_intf,
3385         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3386         .scan = mwifiex_cfg80211_scan,
3387         .connect = mwifiex_cfg80211_connect,
3388         .disconnect = mwifiex_cfg80211_disconnect,
3389         .get_station = mwifiex_cfg80211_get_station,
3390         .dump_station = mwifiex_cfg80211_dump_station,
3391         .dump_survey = mwifiex_cfg80211_dump_survey,
3392         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3393         .join_ibss = mwifiex_cfg80211_join_ibss,
3394         .leave_ibss = mwifiex_cfg80211_leave_ibss,
3395         .add_key = mwifiex_cfg80211_add_key,
3396         .del_key = mwifiex_cfg80211_del_key,
3397         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3398         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3399         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
3400         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3401         .set_default_key = mwifiex_cfg80211_set_default_key,
3402         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
3403         .set_tx_power = mwifiex_cfg80211_set_tx_power,
3404         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3405         .start_ap = mwifiex_cfg80211_start_ap,
3406         .stop_ap = mwifiex_cfg80211_stop_ap,
3407         .change_beacon = mwifiex_cfg80211_change_beacon,
3408         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3409         .set_antenna = mwifiex_cfg80211_set_antenna,
3410         .del_station = mwifiex_cfg80211_del_station,
3411 #ifdef CONFIG_PM
3412         .suspend = mwifiex_cfg80211_suspend,
3413         .resume = mwifiex_cfg80211_resume,
3414         .set_wakeup = mwifiex_cfg80211_set_wakeup,
3415 #endif
3416         .set_coalesce = mwifiex_cfg80211_set_coalesce,
3417         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3418         .tdls_oper = mwifiex_cfg80211_tdls_oper,
3419         .add_station = mwifiex_cfg80211_add_station,
3420         .change_station = mwifiex_cfg80211_change_station,
3421         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3422         .channel_switch = mwifiex_cfg80211_channel_switch,
3423 };
3424
3425 #ifdef CONFIG_PM
3426 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3427         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
3428         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3429         .pattern_min_len = 1,
3430         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3431         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3432 };
3433 #endif
3434
3435 static bool mwifiex_is_valid_alpha2(const char *alpha2)
3436 {
3437         if (!alpha2 || strlen(alpha2) != 2)
3438                 return false;
3439
3440         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
3441                 return true;
3442
3443         return false;
3444 }
3445
3446 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
3447         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
3448         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
3449         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
3450         .pattern_min_len = 1,
3451         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3452         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3453 };
3454
3455 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
3456 {
3457         u32 n_channels_bg, n_channels_a = 0;
3458
3459         n_channels_bg = mwifiex_band_2ghz.n_channels;
3460
3461         if (adapter->config_bands & BAND_A)
3462                 n_channels_a = mwifiex_band_5ghz.n_channels;
3463
3464         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
3465         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
3466                                       adapter->num_in_chan_stats);
3467
3468         if (!adapter->chan_stats)
3469                 return -ENOMEM;
3470
3471         return 0;
3472 }
3473
3474 /*
3475  * This function registers the device with CFG802.11 subsystem.
3476  *
3477  * The function creates the wireless device/wiphy, populates it with
3478  * default parameters and handler function pointers, and finally
3479  * registers the device.
3480  */
3481
3482 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3483 {
3484         int ret;
3485         void *wdev_priv;
3486         struct wiphy *wiphy;
3487         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3488         u8 *country_code;
3489         u32 thr, retry;
3490
3491         /* create a new wiphy for use with cfg80211 */
3492         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
3493                           sizeof(struct mwifiex_adapter *));
3494         if (!wiphy) {
3495                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
3496                 return -ENOMEM;
3497         }
3498         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
3499         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
3500         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
3501         wiphy->max_remain_on_channel_duration = 5000;
3502         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3503                                  BIT(NL80211_IFTYPE_ADHOC) |
3504                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
3505                                  BIT(NL80211_IFTYPE_P2P_GO) |
3506                                  BIT(NL80211_IFTYPE_AP);
3507
3508         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
3509         if (adapter->config_bands & BAND_A)
3510                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
3511         else
3512                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
3513
3514         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
3515         wiphy->n_iface_combinations = 1;
3516
3517         /* Initialize cipher suits */
3518         wiphy->cipher_suites = mwifiex_cipher_suites;
3519         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3520
3521         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
3522         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3523         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3524                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3525                         WIPHY_FLAG_AP_UAPSD |
3526                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3527                         WIPHY_FLAG_HAS_CHANNEL_SWITCH;
3528
3529         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3530                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3531                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3532
3533 #ifdef CONFIG_PM
3534         wiphy->wowlan = &mwifiex_wowlan_support;
3535 #endif
3536
3537         wiphy->coalesce = &mwifiex_coalesce_support;
3538
3539         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3540                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3541                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3542
3543         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3544         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3545
3546         wiphy->features |= NL80211_FEATURE_HT_IBSS |
3547                            NL80211_FEATURE_INACTIVITY_TIMER |
3548                            NL80211_FEATURE_NEED_OBSS_SCAN;
3549
3550         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3551                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3552
3553         /* Reserve space for mwifiex specific private data for BSS */
3554         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3555
3556         wiphy->reg_notifier = mwifiex_reg_notifier;
3557
3558         /* Set struct mwifiex_adapter pointer in wiphy_priv */
3559         wdev_priv = wiphy_priv(wiphy);
3560         *(unsigned long *)wdev_priv = (unsigned long)adapter;
3561
3562         set_wiphy_dev(wiphy, priv->adapter->dev);
3563
3564         ret = wiphy_register(wiphy);
3565         if (ret < 0) {
3566                 dev_err(adapter->dev,
3567                         "%s: wiphy_register failed: %d\n", __func__, ret);
3568                 wiphy_free(wiphy);
3569                 return ret;
3570         }
3571
3572         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3573                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
3574                 regulatory_hint(wiphy, reg_alpha2);
3575         } else {
3576                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3577                 if (country_code)
3578                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
3579                                    country_code);
3580         }
3581
3582         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3583                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3584         wiphy->frag_threshold = thr;
3585         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3586                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3587         wiphy->rts_threshold = thr;
3588         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3589                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3590         wiphy->retry_short = (u8) retry;
3591         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3592                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3593         wiphy->retry_long = (u8) retry;
3594
3595         adapter->wiphy = wiphy;
3596         return ret;
3597 }