drivers/net/wireless/mwifiex/cfg80211.c

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22
  23 static char *reg_alpha2;
  24 module_param(reg_alpha2, charp, 0);
  25
  26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  27         {
  28                 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
  29                                    BIT(NL80211_IFTYPE_P2P_GO) |
  30                                    BIT(NL80211_IFTYPE_P2P_CLIENT),
  31         },
  32         {
  33                 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
  38         .limits = mwifiex_ap_sta_limits,
  39         .num_different_channels = 1,
  40         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  41         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  42         .beacon_int_infra_match = true,
  43 };
  44
  45 static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
  46         .n_reg_rules = 7,
  47         .alpha2 =  "99",
  48         .reg_rules = {
  49                 /* Channel 1 - 11 */
  50                 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
  51                 /* Channel 12 - 13 */
  52                 REG_RULE(2467-10, 2472+10, 20, 3, 20,
  53                          NL80211_RRF_NO_IR),
  54                 /* Channel 14 */
  55                 REG_RULE(2484-10, 2484+10, 20, 3, 20,
  56                          NL80211_RRF_NO_IR |
  57                          NL80211_RRF_NO_OFDM),
  58                 /* Channel 36 - 48 */
  59                 REG_RULE(5180-10, 5240+10, 40, 3, 20,
  60                          NL80211_RRF_NO_IR),
  61                 /* Channel 149 - 165 */
  62                 REG_RULE(5745-10, 5825+10, 40, 3, 20,
  63                          NL80211_RRF_NO_IR),
  64                 /* Channel 52 - 64 */
  65                 REG_RULE(5260-10, 5320+10, 40, 3, 30,
  66                          NL80211_RRF_NO_IR |
  67                          NL80211_RRF_DFS),
  68                 /* Channel 100 - 140 */
  69                 REG_RULE(5500-10, 5700+10, 40, 3, 30,
  70                          NL80211_RRF_NO_IR |
  71                          NL80211_RRF_DFS),
  72         }
  73 };
  74
  75 /*
  76  * This function maps the nl802.11 channel type into driver channel type.
  77  *
  78  * The mapping is as follows -
  79  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  81  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  82  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  83  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  84  */
  85 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  86 {
  87         switch (chan_type) {
  88         case NL80211_CHAN_NO_HT:
  89         case NL80211_CHAN_HT20:
  90                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  91         case NL80211_CHAN_HT40PLUS:
  92                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  93         case NL80211_CHAN_HT40MINUS:
  94                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  95         default:
  96                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  97         }
  98 }
  99
 100 /*
 101  * This function checks whether WEP is set.
 102  */
 103 static int
 104 mwifiex_is_alg_wep(u32 cipher)
 105 {
 106         switch (cipher) {
 107         case WLAN_CIPHER_SUITE_WEP40:
 108         case WLAN_CIPHER_SUITE_WEP104:
 109                 return 1;
 110         default:
 111                 break;
 112         }
 113
 114         return 0;
 115 }
 116
 117 /*
 118  * This function retrieves the private structure from kernel wiphy structure.
 119  */
 120 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 121 {
 122         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 123 }
 124
 125 /*
 126  * CFG802.11 operation handler to delete a network key.
 127  */
 128 static int
 129 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 130                          u8 key_index, bool pairwise, const u8 *mac_addr)
 131 {
 132         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 133         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 134         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 135
 136         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 137                 wiphy_err(wiphy, "deleting the crypto keys\n");
 138                 return -EFAULT;
 139         }
 140
 141         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 142         return 0;
 143 }
 144
 145 /*
 146  * This function forms an skb for management frame.
 147  */
 148 static int
 149 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 150 {
 151         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 152         u16 pkt_len;
 153         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 154         struct timeval tv;
 155
 156         pkt_len = len + ETH_ALEN;
 157
 158         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 159                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 160         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 161
 162         memcpy(skb_push(skb, sizeof(tx_control)),
 163                &tx_control, sizeof(tx_control));
 164
 165         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 166
 167         /* Add packet data and address4 */
 168         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 169                sizeof(struct ieee80211_hdr_3addr));
 170         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 171         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 172                buf + sizeof(struct ieee80211_hdr_3addr),
 173                len - sizeof(struct ieee80211_hdr_3addr));
 174
 175         skb->priority = LOW_PRIO_TID;
 176         do_gettimeofday(&tv);
 177         skb->tstamp = timeval_to_ktime(tv);
 178
 179         return 0;
 180 }
 181
 182 /*
 183  * CFG802.11 operation handler to transmit a management frame.
 184  */
 185 static int
 186 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 187                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 188 {
 189         const u8 *buf = params->buf;
 190         size_t len = params->len;
 191         struct sk_buff *skb;
 192         u16 pkt_len;
 193         const struct ieee80211_mgmt *mgmt;
 194         struct mwifiex_txinfo *tx_info;
 195         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 196
 197         if (!buf || !len) {
 198                 wiphy_err(wiphy, "invalid buffer and length\n");
 199                 return -EFAULT;
 200         }
 201
 202         mgmt = (const struct ieee80211_mgmt *)buf;
 203         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 204             ieee80211_is_probe_resp(mgmt->frame_control)) {
 205                 /* Since we support offload probe resp, we need to skip probe
 206                  * resp in AP or GO mode */
 207                 wiphy_dbg(wiphy,
 208                           "info: skip to send probe resp in AP or GO mode\n");
 209                 return 0;
 210         }
 211
 212         pkt_len = len + ETH_ALEN;
 213         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 214                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 215                             pkt_len + sizeof(pkt_len));
 216
 217         if (!skb) {
 218                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 219                 return -ENOMEM;
 220         }
 221
 222         tx_info = MWIFIEX_SKB_TXCB(skb);
 223         tx_info->bss_num = priv->bss_num;
 224         tx_info->bss_type = priv->bss_type;
 225         tx_info->pkt_len = pkt_len;
 226
 227         mwifiex_form_mgmt_frame(skb, buf, len);
 228         mwifiex_queue_tx_pkt(priv, skb);
 229
 230         *cookie = prandom_u32() | 1;
 231         cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
 232
 233         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 234         return 0;
 235 }
 236
 237 /*
 238  * CFG802.11 operation handler to register a mgmt frame.
 239  */
 240 static void
 241 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 242                                      struct wireless_dev *wdev,
 243                                      u16 frame_type, bool reg)
 244 {
 245         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 246         u32 mask;
 247
 248         if (reg)
 249                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 250         else
 251                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 252
 253         if (mask != priv->mgmt_frame_mask) {
 254                 priv->mgmt_frame_mask = mask;
 255                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 256                                  HostCmd_ACT_GEN_SET, 0,
 257                                  &priv->mgmt_frame_mask, false);
 258                 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 259         }
 260 }
 261
 262 /*
 263  * CFG802.11 operation handler to remain on channel.
 264  */
 265 static int
 266 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 267                                    struct wireless_dev *wdev,
 268                                    struct ieee80211_channel *chan,
 269                                    unsigned int duration, u64 *cookie)
 270 {
 271         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 272         int ret;
 273
 274         if (!chan || !cookie) {
 275                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 276                 return -EINVAL;
 277         }
 278
 279         if (priv->roc_cfg.cookie) {
 280                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
 281                           priv->roc_cfg.cookie);
 282                 return -EBUSY;
 283         }
 284
 285         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 286                                          duration);
 287
 288         if (!ret) {
 289                 *cookie = prandom_u32() | 1;
 290                 priv->roc_cfg.cookie = *cookie;
 291                 priv->roc_cfg.chan = *chan;
 292
 293                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 294                                           duration, GFP_ATOMIC);
 295
 296                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 297         }
 298
 299         return ret;
 300 }
 301
 302 /*
 303  * CFG802.11 operation handler to cancel remain on channel.
 304  */
 305 static int
 306 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 307                                           struct wireless_dev *wdev, u64 cookie)
 308 {
 309         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 310         int ret;
 311
 312         if (cookie != priv->roc_cfg.cookie)
 313                 return -ENOENT;
 314
 315         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 316                                          &priv->roc_cfg.chan, 0);
 317
 318         if (!ret) {
 319                 cfg80211_remain_on_channel_expired(wdev, cookie,
 320                                                    &priv->roc_cfg.chan,
 321                                                    GFP_ATOMIC);
 322
 323                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 324
 325                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 326         }
 327
 328         return ret;
 329 }
 330
 331 /*
 332  * CFG802.11 operation handler to set Tx power.
 333  */
 334 static int
 335 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 336                               struct wireless_dev *wdev,
 337                               enum nl80211_tx_power_setting type,
 338                               int mbm)
 339 {
 340         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 341         struct mwifiex_private *priv;
 342         struct mwifiex_power_cfg power_cfg;
 343         int dbm = MBM_TO_DBM(mbm);
 344
 345         if (type == NL80211_TX_POWER_FIXED) {
 346                 power_cfg.is_power_auto = 0;
 347                 power_cfg.power_level = dbm;
 348         } else {
 349                 power_cfg.is_power_auto = 1;
 350         }
 351
 352         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 353
 354         return mwifiex_set_tx_power(priv, &power_cfg);
 355 }
 356
 357 /*
 358  * CFG802.11 operation handler to set Power Save option.
 359  *
 360  * The timeout value, if provided, is currently ignored.
 361  */
 362 static int
 363 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 364                                 struct net_device *dev,
 365                                 bool enabled, int timeout)
 366 {
 367         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 368         u32 ps_mode;
 369
 370         if (timeout)
 371                 wiphy_dbg(wiphy,
 372                           "info: ignore timeout value for IEEE Power Save\n");
 373
 374         ps_mode = enabled;
 375
 376         return mwifiex_drv_set_power(priv, &ps_mode);
 377 }
 378
 379 /*
 380  * CFG802.11 operation handler to set the default network key.
 381  */
 382 static int
 383 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 384                                  u8 key_index, bool unicast,
 385                                  bool multicast)
 386 {
 387         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 388
 389         /* Return if WEP key not configured */
 390         if (!priv->sec_info.wep_enabled)
 391                 return 0;
 392
 393         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 394                 priv->wep_key_curr_index = key_index;
 395         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 396                                       NULL, 0)) {
 397                 wiphy_err(wiphy, "set default Tx key index\n");
 398                 return -EFAULT;
 399         }
 400
 401         return 0;
 402 }
 403
 404 /*
 405  * CFG802.11 operation handler to add a network key.
 406  */
 407 static int
 408 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 409                          u8 key_index, bool pairwise, const u8 *mac_addr,
 410                          struct key_params *params)
 411 {
 412         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 413         struct mwifiex_wep_key *wep_key;
 414         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 415         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 416
 417         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 418             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 419              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 420                 if (params->key && params->key_len) {
 421                         wep_key = &priv->wep_key[key_index];
 422                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 423                         memcpy(wep_key->key_material, params->key,
 424                                params->key_len);
 425                         wep_key->key_index = key_index;
 426                         wep_key->key_length = params->key_len;
 427                         priv->sec_info.wep_enabled = 1;
 428                 }
 429                 return 0;
 430         }
 431
 432         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 433                                key_index, peer_mac, 0)) {
 434                 wiphy_err(wiphy, "crypto keys added\n");
 435                 return -EFAULT;
 436         }
 437
 438         return 0;
 439 }
 440
 441 /*
 442  * This function sends domain information to the firmware.
 443  *
 444  * The following information are passed to the firmware -
 445  *      - Country codes
 446  *      - Sub bands (first channel, number of channels, maximum Tx power)
 447  */
 448 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 449 {
 450         u8 no_of_triplet = 0;
 451         struct ieee80211_country_ie_triplet *t;
 452         u8 no_of_parsed_chan = 0;
 453         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 454         u8 i, flag = 0;
 455         enum ieee80211_band band;
 456         struct ieee80211_supported_band *sband;
 457         struct ieee80211_channel *ch;
 458         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 459         struct mwifiex_private *priv;
 460         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 461
 462         /* Set country code */
 463         domain_info->country_code[0] = adapter->country_code[0];
 464         domain_info->country_code[1] = adapter->country_code[1];
 465         domain_info->country_code[2] = ' ';
 466
 467         band = mwifiex_band_to_radio_type(adapter->config_bands);
 468         if (!wiphy->bands[band]) {
 469                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 470                 return -1;
 471         }
 472
 473         sband = wiphy->bands[band];
 474
 475         for (i = 0; i < sband->n_channels ; i++) {
 476                 ch = &sband->channels[i];
 477                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 478                         continue;
 479
 480                 if (!flag) {
 481                         flag = 1;
 482                         first_chan = (u32) ch->hw_value;
 483                         next_chan = first_chan;
 484                         max_pwr = ch->max_power;
 485                         no_of_parsed_chan = 1;
 486                         continue;
 487                 }
 488
 489                 if (ch->hw_value == next_chan + 1 &&
 490                     ch->max_power == max_pwr) {
 491                         next_chan++;
 492                         no_of_parsed_chan++;
 493                 } else {
 494                         t = &domain_info->triplet[no_of_triplet];
 495                         t->chans.first_channel = first_chan;
 496                         t->chans.num_channels = no_of_parsed_chan;
 497                         t->chans.max_power = max_pwr;
 498                         no_of_triplet++;
 499                         first_chan = (u32) ch->hw_value;
 500                         next_chan = first_chan;
 501                         max_pwr = ch->max_power;
 502                         no_of_parsed_chan = 1;
 503                 }
 504         }
 505
 506         if (flag) {
 507                 t = &domain_info->triplet[no_of_triplet];
 508                 t->chans.first_channel = first_chan;
 509                 t->chans.num_channels = no_of_parsed_chan;
 510                 t->chans.max_power = max_pwr;
 511                 no_of_triplet++;
 512         }
 513
 514         domain_info->no_of_triplet = no_of_triplet;
 515
 516         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 517
 518         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 519                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 520                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 521                 return -1;
 522         }
 523
 524         return 0;
 525 }
 526
 527 /*
 528  * CFG802.11 regulatory domain callback function.
 529  *
 530  * This function is called when the regulatory domain is changed due to the
 531  * following reasons -
 532  *      - Set by driver
 533  *      - Set by system core
 534  *      - Set by user
 535  *      - Set bt Country IE
 536  */
 537 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 538                                  struct regulatory_request *request)
 539 {
 540         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 541         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 542                                                         MWIFIEX_BSS_ROLE_ANY);
 543
 544         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 545                   request->alpha2[0], request->alpha2[1]);
 546
 547         switch (request->initiator) {
 548         case NL80211_REGDOM_SET_BY_DRIVER:
 549         case NL80211_REGDOM_SET_BY_CORE:
 550         case NL80211_REGDOM_SET_BY_USER:
 551         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 552                 break;
 553         default:
 554                 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
 555                           request->initiator);
 556                 return;
 557         }
 558
 559         /* Don't send world or same regdom info to firmware */
 560         if (strncmp(request->alpha2, "00", 2) &&
 561             strncmp(request->alpha2, adapter->country_code,
 562                     sizeof(request->alpha2))) {
 563                 memcpy(adapter->country_code, request->alpha2,
 564                        sizeof(request->alpha2));
 565                 mwifiex_send_domain_info_cmd_fw(wiphy);
 566                 mwifiex_dnld_txpwr_table(priv);
 567         }
 568 }
 569
 570 /*
 571  * This function sets the fragmentation threshold.
 572  *
 573  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 574  * and MWIFIEX_FRAG_MAX_VALUE.
 575  */
 576 static int
 577 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 578 {
 579         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 580             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 581                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 582
 583         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 584                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 585                                 &frag_thr, true);
 586 }
 587
 588 /*
 589  * This function sets the RTS threshold.
 590
 591  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 592  * and MWIFIEX_RTS_MAX_VALUE.
 593  */
 594 static int
 595 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 596 {
 597         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 598                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 599
 600         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 601                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 602                                 &rts_thr, true);
 603 }
 604
 605 /*
 606  * CFG802.11 operation handler to set wiphy parameters.
 607  *
 608  * This function can be used to set the RTS threshold and the
 609  * Fragmentation threshold of the driver.
 610  */
 611 static int
 612 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 613 {
 614         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 615         struct mwifiex_private *priv;
 616         struct mwifiex_uap_bss_param *bss_cfg;
 617         int ret, bss_started, i;
 618
 619         for (i = 0; i < adapter->priv_num; i++) {
 620                 priv = adapter->priv[i];
 621
 622                 switch (priv->bss_role) {
 623                 case MWIFIEX_BSS_ROLE_UAP:
 624                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 625                                           GFP_KERNEL);
 626                         if (!bss_cfg)
 627                                 return -ENOMEM;
 628
 629                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 630
 631                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 632                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 633                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 634                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 635                         if (changed & WIPHY_PARAM_RETRY_LONG)
 636                                 bss_cfg->retry_limit = wiphy->retry_long;
 637
 638                         bss_started = priv->bss_started;
 639
 640                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
 641                                                HostCmd_ACT_GEN_SET, 0,
 642                                                NULL, true);
 643                         if (ret) {
 644                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 645                                 kfree(bss_cfg);
 646                                 return ret;
 647                         }
 648
 649                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 650                                                HostCmd_ACT_GEN_SET,
 651                                                UAP_BSS_PARAMS_I, bss_cfg,
 652                                                false);
 653
 654                         kfree(bss_cfg);
 655
 656                         if (ret) {
 657                                 wiphy_err(wiphy, "Failed to set bss config\n");
 658                                 return ret;
 659                         }
 660
 661                         if (!bss_started)
 662                                 break;
 663
 664                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
 665                                                HostCmd_ACT_GEN_SET, 0,
 666                                                NULL, false);
 667                         if (ret) {
 668                                 wiphy_err(wiphy, "Failed to start BSS\n");
 669                                 return ret;
 670                         }
 671
 672                         break;
 673                 case MWIFIEX_BSS_ROLE_STA:
 674                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 675                                 ret = mwifiex_set_rts(priv,
 676                                                       wiphy->rts_threshold);
 677                                 if (ret)
 678                                         return ret;
 679                         }
 680                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 681                                 ret = mwifiex_set_frag(priv,
 682                                                        wiphy->frag_threshold);
 683                                 if (ret)
 684                                         return ret;
 685                         }
 686                         break;
 687                 }
 688         }
 689
 690         return 0;
 691 }
 692
 693 static int
 694 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 695 {
 696         u16 mode = P2P_MODE_DISABLE;
 697
 698         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 699                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 700
 701         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 702                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 703                 return -1;
 704
 705         return 0;
 706 }
 707
 708 /*
 709  * This function initializes the functionalities for P2P client.
 710  * The P2P client initialization sequence is:
 711  * disable -> device -> client
 712  */
 713 static int
 714 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 715 {
 716         u16 mode;
 717
 718         if (mwifiex_cfg80211_deinit_p2p(priv))
 719                 return -1;
 720
 721         mode = P2P_MODE_DEVICE;
 722         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 723                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 724                 return -1;
 725
 726         mode = P2P_MODE_CLIENT;
 727         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 728                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 729                 return -1;
 730
 731         return 0;
 732 }
 733
 734 /*
 735  * This function initializes the functionalities for P2P GO.
 736  * The P2P GO initialization sequence is:
 737  * disable -> device -> GO
 738  */
 739 static int
 740 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 741 {
 742         u16 mode;
 743
 744         if (mwifiex_cfg80211_deinit_p2p(priv))
 745                 return -1;
 746
 747         mode = P2P_MODE_DEVICE;
 748         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 749                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 750                 return -1;
 751
 752         mode = P2P_MODE_GO;
 753         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 754                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 755                 return -1;
 756
 757         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 758                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 759
 760         return 0;
 761 }
 762
 763 /*
 764  * CFG802.11 operation handler to change interface type.
 765  */
 766 static int
 767 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 768                                      struct net_device *dev,
 769                                      enum nl80211_iftype type, u32 *flags,
 770                                      struct vif_params *params)
 771 {
 772         int ret;
 773         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 774
 775         switch (dev->ieee80211_ptr->iftype) {
 776         case NL80211_IFTYPE_ADHOC:
 777                 switch (type) {
 778                 case NL80211_IFTYPE_STATION:
 779                         break;
 780                 case NL80211_IFTYPE_UNSPECIFIED:
 781                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 782                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 783                         return 0;
 784                 case NL80211_IFTYPE_AP:
 785                 default:
 786                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 787                                   dev->name, type);
 788                         return -EOPNOTSUPP;
 789                 }
 790                 break;
 791         case NL80211_IFTYPE_STATION:
 792                 switch (type) {
 793                 case NL80211_IFTYPE_ADHOC:
 794                         break;
 795                 case NL80211_IFTYPE_P2P_CLIENT:
 796                         if (mwifiex_cfg80211_init_p2p_client(priv))
 797                                 return -EFAULT;
 798                         dev->ieee80211_ptr->iftype = type;
 799                         return 0;
 800                 case NL80211_IFTYPE_P2P_GO:
 801                         if (mwifiex_cfg80211_init_p2p_go(priv))
 802                                 return -EFAULT;
 803                         dev->ieee80211_ptr->iftype = type;
 804                         return 0;
 805                 case NL80211_IFTYPE_UNSPECIFIED:
 806                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 807                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 808                         return 0;
 809                 case NL80211_IFTYPE_AP:
 810                 default:
 811                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 812                                   dev->name, type);
 813                         return -EOPNOTSUPP;
 814                 }
 815                 break;
 816         case NL80211_IFTYPE_AP:
 817                 switch (type) {
 818                 case NL80211_IFTYPE_UNSPECIFIED:
 819                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 820                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 821                         return 0;
 822                 case NL80211_IFTYPE_ADHOC:
 823                 case NL80211_IFTYPE_STATION:
 824                 default:
 825                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 826                                   dev->name, type);
 827                         return -EOPNOTSUPP;
 828                 }
 829                 break;
 830         case NL80211_IFTYPE_P2P_CLIENT:
 831         case NL80211_IFTYPE_P2P_GO:
 832                 switch (type) {
 833                 case NL80211_IFTYPE_STATION:
 834                         if (mwifiex_cfg80211_deinit_p2p(priv))
 835                                 return -EFAULT;
 836                         dev->ieee80211_ptr->iftype = type;
 837                         return 0;
 838                 default:
 839                         return -EOPNOTSUPP;
 840                 }
 841                 break;
 842         default:
 843                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 844                           dev->name, dev->ieee80211_ptr->iftype);
 845                 return -EOPNOTSUPP;
 846         }
 847
 848         dev->ieee80211_ptr->iftype = type;
 849         priv->bss_mode = type;
 850         mwifiex_deauthenticate(priv, NULL);
 851
 852         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 853
 854         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 855                                HostCmd_ACT_GEN_SET, 0, NULL, true);
 856
 857         return ret;
 858 }
 859
 860 static void
 861 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 862                      struct rate_info *rate)
 863 {
 864         struct mwifiex_adapter *adapter = priv->adapter;
 865
 866         if (adapter->is_hw_11ac_capable) {
 867                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 868                 if (tx_htinfo & BIT(0)) {
 869                         /* HT */
 870                         rate->mcs = priv->tx_rate;
 871                         rate->flags |= RATE_INFO_FLAGS_MCS;
 872                 }
 873                 if (tx_htinfo & BIT(1)) {
 874                         /* VHT */
 875                         rate->mcs = priv->tx_rate & 0x0F;
 876                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 877                 }
 878
 879                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 880                         /* HT or VHT */
 881                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 882                         case 0:
 883                                 /* This will be 20MHz */
 884                                 break;
 885                         case (BIT(2)):
 886                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 887                                 break;
 888                         case (BIT(3)):
 889                                 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 890                                 break;
 891                         case (BIT(3) | BIT(2)):
 892                                 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 893                                 break;
 894                         }
 895
 896                         if (tx_htinfo & BIT(4))
 897                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 898
 899                         if ((priv->tx_rate >> 4) == 1)
 900                                 rate->nss = 2;
 901                         else
 902                                 rate->nss = 1;
 903                 }
 904         } else {
 905                 /*
 906                  * Bit 0 in tx_htinfo indicates that current Tx rate
 907                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 908                  */
 909                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 910                         rate->mcs = priv->tx_rate;
 911                         rate->flags |= RATE_INFO_FLAGS_MCS;
 912                         if (tx_htinfo & BIT(1))
 913                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 914                         if (tx_htinfo & BIT(2))
 915                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 916                 }
 917         }
 918 }
 919
 920 /*
 921  * This function dumps the station information on a buffer.
 922  *
 923  * The following information are shown -
 924  *      - Total bytes transmitted
 925  *      - Total bytes received
 926  *      - Total packets transmitted
 927  *      - Total packets received
 928  *      - Signal quality level
 929  *      - Transmission rate
 930  */
 931 static int
 932 mwifiex_dump_station_info(struct mwifiex_private *priv,
 933                           struct station_info *sinfo)
 934 {
 935         u32 rate;
 936
 937         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 938                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 939                         STATION_INFO_TX_BITRATE |
 940                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 941
 942         /* Get signal information from the firmware */
 943         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
 944                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
 945                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 946                 return -EFAULT;
 947         }
 948
 949         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 950                 dev_err(priv->adapter->dev, "getting data rate\n");
 951                 return -EFAULT;
 952         }
 953
 954         /* Get DTIM period information from firmware */
 955         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 956                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 957                          &priv->dtim_period, true);
 958
 959         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 960
 961         sinfo->signal_avg = priv->bcn_rssi_avg;
 962         sinfo->rx_bytes = priv->stats.rx_bytes;
 963         sinfo->tx_bytes = priv->stats.tx_bytes;
 964         sinfo->rx_packets = priv->stats.rx_packets;
 965         sinfo->tx_packets = priv->stats.tx_packets;
 966         sinfo->signal = priv->bcn_rssi_avg;
 967         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 968         sinfo->txrate.legacy = rate * 5;
 969
 970         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 971                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 972                 sinfo->bss_param.flags = 0;
 973                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 974                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 975                         sinfo->bss_param.flags |=
 976                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 977                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 978                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 979                         sinfo->bss_param.flags |=
 980                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 981                 sinfo->bss_param.dtim_period = priv->dtim_period;
 982                 sinfo->bss_param.beacon_interval =
 983                         priv->curr_bss_params.bss_descriptor.beacon_period;
 984         }
 985
 986         return 0;
 987 }
 988
 989 /*
 990  * CFG802.11 operation handler to get station information.
 991  *
 992  * This function only works in connected mode, and dumps the
 993  * requested station information, if available.
 994  */
 995 static int
 996 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 997                              const u8 *mac, struct station_info *sinfo)
 998 {
 999         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1000
1001         if (!priv->media_connected)
1002                 return -ENOENT;
1003         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1004                 return -ENOENT;
1005
1006         return mwifiex_dump_station_info(priv, sinfo);
1007 }
1008
1009 /*
1010  * CFG802.11 operation handler to dump station information.
1011  */
1012 static int
1013 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1014                               int idx, u8 *mac, struct station_info *sinfo)
1015 {
1016         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1017
1018         if (!priv->media_connected || idx)
1019                 return -ENOENT;
1020
1021         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1022
1023         return mwifiex_dump_station_info(priv, sinfo);
1024 }
1025
1026 /* Supported rates to be advertised to the cfg80211 */
1027 static struct ieee80211_rate mwifiex_rates[] = {
1028         {.bitrate = 10, .hw_value = 2, },
1029         {.bitrate = 20, .hw_value = 4, },
1030         {.bitrate = 55, .hw_value = 11, },
1031         {.bitrate = 110, .hw_value = 22, },
1032         {.bitrate = 60, .hw_value = 12, },
1033         {.bitrate = 90, .hw_value = 18, },
1034         {.bitrate = 120, .hw_value = 24, },
1035         {.bitrate = 180, .hw_value = 36, },
1036         {.bitrate = 240, .hw_value = 48, },
1037         {.bitrate = 360, .hw_value = 72, },
1038         {.bitrate = 480, .hw_value = 96, },
1039         {.bitrate = 540, .hw_value = 108, },
1040 };
1041
1042 /* Channel definitions to be advertised to cfg80211 */
1043 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1044         {.center_freq = 2412, .hw_value = 1, },
1045         {.center_freq = 2417, .hw_value = 2, },
1046         {.center_freq = 2422, .hw_value = 3, },
1047         {.center_freq = 2427, .hw_value = 4, },
1048         {.center_freq = 2432, .hw_value = 5, },
1049         {.center_freq = 2437, .hw_value = 6, },
1050         {.center_freq = 2442, .hw_value = 7, },
1051         {.center_freq = 2447, .hw_value = 8, },
1052         {.center_freq = 2452, .hw_value = 9, },
1053         {.center_freq = 2457, .hw_value = 10, },
1054         {.center_freq = 2462, .hw_value = 11, },
1055         {.center_freq = 2467, .hw_value = 12, },
1056         {.center_freq = 2472, .hw_value = 13, },
1057         {.center_freq = 2484, .hw_value = 14, },
1058 };
1059
1060 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1061         .channels = mwifiex_channels_2ghz,
1062         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1063         .bitrates = mwifiex_rates,
1064         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1065 };
1066
1067 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1068         {.center_freq = 5040, .hw_value = 8, },
1069         {.center_freq = 5060, .hw_value = 12, },
1070         {.center_freq = 5080, .hw_value = 16, },
1071         {.center_freq = 5170, .hw_value = 34, },
1072         {.center_freq = 5190, .hw_value = 38, },
1073         {.center_freq = 5210, .hw_value = 42, },
1074         {.center_freq = 5230, .hw_value = 46, },
1075         {.center_freq = 5180, .hw_value = 36, },
1076         {.center_freq = 5200, .hw_value = 40, },
1077         {.center_freq = 5220, .hw_value = 44, },
1078         {.center_freq = 5240, .hw_value = 48, },
1079         {.center_freq = 5260, .hw_value = 52, },
1080         {.center_freq = 5280, .hw_value = 56, },
1081         {.center_freq = 5300, .hw_value = 60, },
1082         {.center_freq = 5320, .hw_value = 64, },
1083         {.center_freq = 5500, .hw_value = 100, },
1084         {.center_freq = 5520, .hw_value = 104, },
1085         {.center_freq = 5540, .hw_value = 108, },
1086         {.center_freq = 5560, .hw_value = 112, },
1087         {.center_freq = 5580, .hw_value = 116, },
1088         {.center_freq = 5600, .hw_value = 120, },
1089         {.center_freq = 5620, .hw_value = 124, },
1090         {.center_freq = 5640, .hw_value = 128, },
1091         {.center_freq = 5660, .hw_value = 132, },
1092         {.center_freq = 5680, .hw_value = 136, },
1093         {.center_freq = 5700, .hw_value = 140, },
1094         {.center_freq = 5745, .hw_value = 149, },
1095         {.center_freq = 5765, .hw_value = 153, },
1096         {.center_freq = 5785, .hw_value = 157, },
1097         {.center_freq = 5805, .hw_value = 161, },
1098         {.center_freq = 5825, .hw_value = 165, },
1099 };
1100
1101 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1102         .channels = mwifiex_channels_5ghz,
1103         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1104         .bitrates = mwifiex_rates + 4,
1105         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1106 };
1107
1108
1109 /* Supported crypto cipher suits to be advertised to cfg80211 */
1110 static const u32 mwifiex_cipher_suites[] = {
1111         WLAN_CIPHER_SUITE_WEP40,
1112         WLAN_CIPHER_SUITE_WEP104,
1113         WLAN_CIPHER_SUITE_TKIP,
1114         WLAN_CIPHER_SUITE_CCMP,
1115         WLAN_CIPHER_SUITE_AES_CMAC,
1116 };
1117
1118 /* Supported mgmt frame types to be advertised to cfg80211 */
1119 static const struct ieee80211_txrx_stypes
1120 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1121         [NL80211_IFTYPE_STATION] = {
1122                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1123                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1124                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1125                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1126         },
1127         [NL80211_IFTYPE_AP] = {
1128                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1129                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1130                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1131                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1132         },
1133         [NL80211_IFTYPE_P2P_CLIENT] = {
1134                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1135                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1136                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1137                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1138         },
1139         [NL80211_IFTYPE_P2P_GO] = {
1140                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1141                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1142                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1143                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1144         },
1145 };
1146
1147 /*
1148  * CFG802.11 operation handler for setting bit rates.
1149  *
1150  * Function configures data rates to firmware using bitrate mask
1151  * provided by cfg80211.
1152  */
1153 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1154                                 struct net_device *dev,
1155                                 const u8 *peer,
1156                                 const struct cfg80211_bitrate_mask *mask)
1157 {
1158         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1159         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1160         enum ieee80211_band band;
1161         struct mwifiex_adapter *adapter = priv->adapter;
1162
1163         if (!priv->media_connected) {
1164                 dev_err(adapter->dev,
1165                         "Can not set Tx data rate in disconnected state\n");
1166                 return -EINVAL;
1167         }
1168
1169         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1170
1171         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1172
1173         /* Fill HR/DSSS rates. */
1174         if (band == IEEE80211_BAND_2GHZ)
1175                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1176
1177         /* Fill OFDM rates */
1178         if (band == IEEE80211_BAND_2GHZ)
1179                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1180         else
1181                 bitmap_rates[1] = mask->control[band].legacy;
1182
1183         /* Fill HT MCS rates */
1184         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1185         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1186                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1187
1188        /* Fill VHT MCS rates */
1189         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1190                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1191                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1192                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1193         }
1194
1195         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1196                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1197 }
1198
1199 /*
1200  * CFG802.11 operation handler for connection quality monitoring.
1201  *
1202  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1203  * events to FW.
1204  */
1205 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1206                                                 struct net_device *dev,
1207                                                 s32 rssi_thold, u32 rssi_hyst)
1208 {
1209         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1210         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1211
1212         priv->cqm_rssi_thold = rssi_thold;
1213         priv->cqm_rssi_hyst = rssi_hyst;
1214
1215         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1216         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1217
1218         /* Subscribe/unsubscribe low and high rssi events */
1219         if (rssi_thold && rssi_hyst) {
1220                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1221                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1222                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1223                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1224                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1225                 return mwifiex_send_cmd(priv,
1226                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1227                                         0, 0, &subsc_evt, true);
1228         } else {
1229                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1230                 return mwifiex_send_cmd(priv,
1231                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1232                                         0, 0, &subsc_evt, true);
1233         }
1234
1235         return 0;
1236 }
1237
1238 /* cfg80211 operation handler for change_beacon.
1239  * Function retrieves and sets modified management IEs to FW.
1240  */
1241 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1242                                           struct net_device *dev,
1243                                           struct cfg80211_beacon_data *data)
1244 {
1245         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1246
1247         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1248                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1249                 return -EINVAL;
1250         }
1251
1252         if (!priv->bss_started) {
1253                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1254                 return -EINVAL;
1255         }
1256
1257         if (mwifiex_set_mgmt_ies(priv, data)) {
1258                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1259                 return -EFAULT;
1260         }
1261
1262         return 0;
1263 }
1264
1265 /* cfg80211 operation handler for del_station.
1266  * Function deauthenticates station which value is provided in mac parameter.
1267  * If mac is NULL/broadcast, all stations in associated station list are
1268  * deauthenticated. If bss is not started or there are no stations in
1269  * associated stations list, no action is taken.
1270  */
1271 static int
1272 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1273                              const u8 *mac)
1274 {
1275         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1276         struct mwifiex_sta_node *sta_node;
1277         unsigned long flags;
1278
1279         if (list_empty(&priv->sta_list) || !priv->bss_started)
1280                 return 0;
1281
1282         if (!mac || is_broadcast_ether_addr(mac)) {
1283                 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1284                 list_for_each_entry(sta_node, &priv->sta_list, list) {
1285                         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1286                                              HostCmd_ACT_GEN_SET, 0,
1287                                              sta_node->mac_addr, true))
1288                                 return -1;
1289                         mwifiex_uap_del_sta_data(priv, sta_node);
1290                 }
1291         } else {
1292                 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
1293                 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1294                 sta_node = mwifiex_get_sta_entry(priv, mac);
1295                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1296                 if (sta_node) {
1297                         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1298                                              HostCmd_ACT_GEN_SET, 0,
1299                                              sta_node->mac_addr, true))
1300                                 return -1;
1301                         mwifiex_uap_del_sta_data(priv, sta_node);
1302                 }
1303         }
1304
1305         return 0;
1306 }
1307
1308 static int
1309 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1310 {
1311         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1312         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1313                                                         MWIFIEX_BSS_ROLE_ANY);
1314         struct mwifiex_ds_ant_cfg ant_cfg;
1315
1316         if (!tx_ant || !rx_ant)
1317                 return -EOPNOTSUPP;
1318
1319         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1320                 /* Not a MIMO chip. User should provide specific antenna number
1321                  * for Tx/Rx path or enable all antennas for diversity
1322                  */
1323                 if (tx_ant != rx_ant)
1324                         return -EOPNOTSUPP;
1325
1326                 if ((tx_ant & (tx_ant - 1)) &&
1327                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1328                         return -EOPNOTSUPP;
1329
1330                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1331                     (priv->adapter->number_of_antenna > 1)) {
1332                         tx_ant = RF_ANTENNA_AUTO;
1333                         rx_ant = RF_ANTENNA_AUTO;
1334                 }
1335         } else {
1336                 struct ieee80211_sta_ht_cap *ht_info;
1337                 int rx_mcs_supp;
1338                 enum ieee80211_band band;
1339
1340                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1341                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1342                         if (adapter->is_hw_11ac_capable)
1343                                 adapter->usr_dot_11ac_mcs_support =
1344                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1345                 } else {
1346                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1347                         if (adapter->is_hw_11ac_capable)
1348                                 adapter->usr_dot_11ac_mcs_support =
1349                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1350                 }
1351
1352                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1353                         if (!adapter->wiphy->bands[band])
1354                                 continue;
1355
1356                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1357                         rx_mcs_supp =
1358                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1359                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1360                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1361                 }
1362         }
1363
1364         ant_cfg.tx_ant = tx_ant;
1365         ant_cfg.rx_ant = rx_ant;
1366
1367         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1368                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1369 }
1370
1371 /* cfg80211 operation handler for stop ap.
1372  * Function stops BSS running at uAP interface.
1373  */
1374 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1375 {
1376         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1377
1378         if (mwifiex_del_mgmt_ies(priv))
1379                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1380
1381         priv->ap_11n_enabled = 0;
1382
1383         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1384                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1385                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1386                 return -1;
1387         }
1388
1389         return 0;
1390 }
1391
1392 /* cfg80211 operation handler for start_ap.
1393  * Function sets beacon period, DTIM period, SSID and security into
1394  * AP config structure.
1395  * AP is configured with these settings and BSS is started.
1396  */
1397 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1398                                      struct net_device *dev,
1399                                      struct cfg80211_ap_settings *params)
1400 {
1401         struct mwifiex_uap_bss_param *bss_cfg;
1402         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1403         u8 config_bands = 0;
1404
1405         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1406                 return -1;
1407         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1408                 return -1;
1409
1410         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1411         if (!bss_cfg)
1412                 return -ENOMEM;
1413
1414         mwifiex_set_sys_config_invalid_data(bss_cfg);
1415
1416         if (params->beacon_interval)
1417                 bss_cfg->beacon_period = params->beacon_interval;
1418         if (params->dtim_period)
1419                 bss_cfg->dtim_period = params->dtim_period;
1420
1421         if (params->ssid && params->ssid_len) {
1422                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1423                 bss_cfg->ssid.ssid_len = params->ssid_len;
1424         }
1425
1426         switch (params->hidden_ssid) {
1427         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1428                 bss_cfg->bcast_ssid_ctl = 1;
1429                 break;
1430         case NL80211_HIDDEN_SSID_ZERO_LEN:
1431                 bss_cfg->bcast_ssid_ctl = 0;
1432                 break;
1433         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1434                 /* firmware doesn't support this type of hidden SSID */
1435         default:
1436                 kfree(bss_cfg);
1437                 return -EINVAL;
1438         }
1439
1440         bss_cfg->channel = ieee80211_frequency_to_channel(
1441                                 params->chandef.chan->center_freq);
1442
1443         /* Set appropriate bands */
1444         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1445                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1446                 config_bands = BAND_B | BAND_G;
1447
1448                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1449                         config_bands |= BAND_GN;
1450         } else {
1451                 bss_cfg->band_cfg = BAND_CONFIG_A;
1452                 config_bands = BAND_A;
1453
1454                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1455                         config_bands |= BAND_AN;
1456
1457                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1458                         config_bands |= BAND_AAC;
1459         }
1460
1461         if (!((config_bands | priv->adapter->fw_bands) &
1462               ~priv->adapter->fw_bands))
1463                 priv->adapter->config_bands = config_bands;
1464
1465         mwifiex_set_uap_rates(bss_cfg, params);
1466         mwifiex_send_domain_info_cmd_fw(wiphy);
1467
1468         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1469                 kfree(bss_cfg);
1470                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1471                 return -1;
1472         }
1473
1474         mwifiex_set_ht_params(priv, bss_cfg, params);
1475
1476         if (priv->adapter->is_hw_11ac_capable) {
1477                 mwifiex_set_vht_params(priv, bss_cfg, params);
1478                 mwifiex_set_vht_width(priv, params->chandef.width,
1479                                       priv->ap_11ac_enabled);
1480         }
1481
1482         if (priv->ap_11ac_enabled)
1483                 mwifiex_set_11ac_ba_params(priv);
1484         else
1485                 mwifiex_set_ba_params(priv);
1486
1487         mwifiex_set_wmm_params(priv, bss_cfg, params);
1488
1489         if (params->inactivity_timeout > 0) {
1490                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1491                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1492                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1493         }
1494
1495         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1496                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1497                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1498                 kfree(bss_cfg);
1499                 return -1;
1500         }
1501
1502         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1503                              HostCmd_ACT_GEN_SET,
1504                              UAP_BSS_PARAMS_I, bss_cfg, false)) {
1505                 wiphy_err(wiphy, "Failed to set the SSID\n");
1506                 kfree(bss_cfg);
1507                 return -1;
1508         }
1509
1510         kfree(bss_cfg);
1511
1512         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1513                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1514                 wiphy_err(wiphy, "Failed to start the BSS\n");
1515                 return -1;
1516         }
1517
1518         if (priv->sec_info.wep_enabled)
1519                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1520         else
1521                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1522
1523         if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1524                              HostCmd_ACT_GEN_SET, 0,
1525                              &priv->curr_pkt_filter, true))
1526                 return -1;
1527
1528         return 0;
1529 }
1530
1531 /*
1532  * CFG802.11 operation handler for disconnection request.
1533  *
1534  * This function does not work when there is already a disconnection
1535  * procedure going on.
1536  */
1537 static int
1538 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1539                             u16 reason_code)
1540 {
1541         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1542
1543         if (mwifiex_deauthenticate(priv, NULL))
1544                 return -EFAULT;
1545
1546         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1547                 " reason code %d\n", priv->cfg_bssid, reason_code);
1548
1549         memset(priv->cfg_bssid, 0, ETH_ALEN);
1550         priv->hs2_enabled = false;
1551
1552         return 0;
1553 }
1554
1555 /*
1556  * This function informs the CFG802.11 subsystem of a new IBSS.
1557  *
1558  * The following information are sent to the CFG802.11 subsystem
1559  * to register the new IBSS. If we do not register the new IBSS,
1560  * a kernel panic will result.
1561  *      - SSID
1562  *      - SSID length
1563  *      - BSSID
1564  *      - Channel
1565  */
1566 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1567 {
1568         struct ieee80211_channel *chan;
1569         struct mwifiex_bss_info bss_info;
1570         struct cfg80211_bss *bss;
1571         int ie_len;
1572         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1573         enum ieee80211_band band;
1574
1575         if (mwifiex_get_bss_info(priv, &bss_info))
1576                 return -1;
1577
1578         ie_buf[0] = WLAN_EID_SSID;
1579         ie_buf[1] = bss_info.ssid.ssid_len;
1580
1581         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1582                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1583         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1584
1585         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1586         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1587                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1588                                                        band));
1589
1590         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1591                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1592                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1593         cfg80211_put_bss(priv->wdev->wiphy, bss);
1594         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1595
1596         return 0;
1597 }
1598
1599 /*
1600  * This function connects with a BSS.
1601  *
1602  * This function handles both Infra and Ad-Hoc modes. It also performs
1603  * validity checking on the provided parameters, disconnects from the
1604  * current BSS (if any), sets up the association/scan parameters,
1605  * including security settings, and performs specific SSID scan before
1606  * trying to connect.
1607  *
1608  * For Infra mode, the function returns failure if the specified SSID
1609  * is not found in scan table. However, for Ad-Hoc mode, it can create
1610  * the IBSS if it does not exist. On successful completion in either case,
1611  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1612  */
1613 static int
1614 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1615                        const u8 *ssid, const u8 *bssid, int mode,
1616                        struct ieee80211_channel *channel,
1617                        struct cfg80211_connect_params *sme, bool privacy)
1618 {
1619         struct cfg80211_ssid req_ssid;
1620         int ret, auth_type = 0;
1621         struct cfg80211_bss *bss = NULL;
1622         u8 is_scanning_required = 0;
1623
1624         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1625
1626         req_ssid.ssid_len = ssid_len;
1627         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1628                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1629                 return -EINVAL;
1630         }
1631
1632         memcpy(req_ssid.ssid, ssid, ssid_len);
1633         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1634                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1635                 return -EINVAL;
1636         }
1637
1638         /* disconnect before try to associate */
1639         mwifiex_deauthenticate(priv, NULL);
1640
1641         /* As this is new association, clear locally stored
1642          * keys and security related flags */
1643         priv->sec_info.wpa_enabled = false;
1644         priv->sec_info.wpa2_enabled = false;
1645         priv->wep_key_curr_index = 0;
1646         priv->sec_info.encryption_mode = 0;
1647         priv->sec_info.is_authtype_auto = 0;
1648         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1649
1650         if (mode == NL80211_IFTYPE_ADHOC) {
1651                 /* "privacy" is set only for ad-hoc mode */
1652                 if (privacy) {
1653                         /*
1654                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1655                          * the firmware can find a matching network from the
1656                          * scan. The cfg80211 does not give us the encryption
1657                          * mode at this stage so just setting it to WEP here.
1658                          */
1659                         priv->sec_info.encryption_mode =
1660                                         WLAN_CIPHER_SUITE_WEP104;
1661                         priv->sec_info.authentication_mode =
1662                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1663                 }
1664
1665                 goto done;
1666         }
1667
1668         /* Now handle infra mode. "sme" is valid for infra mode only */
1669         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1670                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1671                 priv->sec_info.is_authtype_auto = 1;
1672         } else {
1673                 auth_type = sme->auth_type;
1674         }
1675
1676         if (sme->crypto.n_ciphers_pairwise) {
1677                 priv->sec_info.encryption_mode =
1678                                                 sme->crypto.ciphers_pairwise[0];
1679                 priv->sec_info.authentication_mode = auth_type;
1680         }
1681
1682         if (sme->crypto.cipher_group) {
1683                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1684                 priv->sec_info.authentication_mode = auth_type;
1685         }
1686         if (sme->ie)
1687                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1688
1689         if (sme->key) {
1690                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1691                         dev_dbg(priv->adapter->dev,
1692                                 "info: setting wep encryption"
1693                                 " with key len %d\n", sme->key_len);
1694                         priv->wep_key_curr_index = sme->key_idx;
1695                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1696                                                  sme->key_len, sme->key_idx,
1697                                                  NULL, 0);
1698                 }
1699         }
1700 done:
1701         /*
1702          * Scan entries are valid for some time (15 sec). So we can save one
1703          * active scan time if we just try cfg80211_get_bss first. If it fails
1704          * then request scan and cfg80211_get_bss() again for final output.
1705          */
1706         while (1) {
1707                 if (is_scanning_required) {
1708                         /* Do specific SSID scanning */
1709                         if (mwifiex_request_scan(priv, &req_ssid)) {
1710                                 dev_err(priv->adapter->dev, "scan error\n");
1711                                 return -EFAULT;
1712                         }
1713                 }
1714
1715                 /* Find the BSS we want using available scan results */
1716                 if (mode == NL80211_IFTYPE_ADHOC)
1717                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1718                                                bssid, ssid, ssid_len,
1719                                                WLAN_CAPABILITY_IBSS,
1720                                                WLAN_CAPABILITY_IBSS);
1721                 else
1722                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1723                                                bssid, ssid, ssid_len,
1724                                                WLAN_CAPABILITY_ESS,
1725                                                WLAN_CAPABILITY_ESS);
1726
1727                 if (!bss) {
1728                         if (is_scanning_required) {
1729                                 dev_warn(priv->adapter->dev,
1730                                          "assoc: requested bss not found in scan results\n");
1731                                 break;
1732                         }
1733                         is_scanning_required = 1;
1734                 } else {
1735                         dev_dbg(priv->adapter->dev,
1736                                 "info: trying to associate to '%s' bssid %pM\n",
1737                                 (char *) req_ssid.ssid, bss->bssid);
1738                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1739                         break;
1740                 }
1741         }
1742
1743         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1744         if (ret)
1745                 return ret;
1746
1747         if (mode == NL80211_IFTYPE_ADHOC) {
1748                 /* Inform the BSS information to kernel, otherwise
1749                  * kernel will give a panic after successful assoc */
1750                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1751                         return -EFAULT;
1752         }
1753
1754         return ret;
1755 }
1756
1757 /*
1758  * CFG802.11 operation handler for association request.
1759  *
1760  * This function does not work when the current mode is set to Ad-Hoc, or
1761  * when there is already an association procedure going on. The given BSS
1762  * information is used to associate.
1763  */
1764 static int
1765 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1766                          struct cfg80211_connect_params *sme)
1767 {
1768         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1769         int ret;
1770
1771         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1772                 wiphy_err(wiphy,
1773                           "%s: reject infra assoc request in non-STA role\n",
1774                           dev->name);
1775                 return -EINVAL;
1776         }
1777
1778         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1779                   (char *) sme->ssid, sme->bssid);
1780
1781         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1782                                      priv->bss_mode, sme->channel, sme, 0);
1783         if (!ret) {
1784                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1785                                         NULL, 0, WLAN_STATUS_SUCCESS,
1786                                         GFP_KERNEL);
1787                 dev_dbg(priv->adapter->dev,
1788                         "info: associated to bssid %pM successfully\n",
1789                         priv->cfg_bssid);
1790         } else {
1791                 dev_dbg(priv->adapter->dev,
1792                         "info: association to bssid %pM failed\n",
1793                         priv->cfg_bssid);
1794                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1795
1796                 if (ret > 0)
1797                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1798                                                 NULL, 0, NULL, 0, ret,
1799                                                 GFP_KERNEL);
1800                 else
1801                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1802                                                 NULL, 0, NULL, 0,
1803                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1804                                                 GFP_KERNEL);
1805         }
1806
1807         return 0;
1808 }
1809
1810 /*
1811  * This function sets following parameters for ibss network.
1812  *  -  channel
1813  *  -  start band
1814  *  -  11n flag
1815  *  -  secondary channel offset
1816  */
1817 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1818                                    struct cfg80211_ibss_params *params)
1819 {
1820         struct wiphy *wiphy = priv->wdev->wiphy;
1821         struct mwifiex_adapter *adapter = priv->adapter;
1822         int index = 0, i;
1823         u8 config_bands = 0;
1824
1825         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1826                 if (!params->basic_rates) {
1827                         config_bands = BAND_B | BAND_G;
1828                 } else {
1829                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1830                                 /*
1831                                  * Rates below 6 Mbps in the table are CCK
1832                                  * rates; 802.11b and from 6 they are OFDM;
1833                                  * 802.11G
1834                                  */
1835                                 if (mwifiex_rates[i].bitrate == 60) {
1836                                         index = 1 << i;
1837                                         break;
1838                                 }
1839                         }
1840
1841                         if (params->basic_rates < index) {
1842                                 config_bands = BAND_B;
1843                         } else {
1844                                 config_bands = BAND_G;
1845                                 if (params->basic_rates % index)
1846                                         config_bands |= BAND_B;
1847                         }
1848                 }
1849
1850                 if (cfg80211_get_chandef_type(&params->chandef) !=
1851                                                 NL80211_CHAN_NO_HT)
1852                         config_bands |= BAND_G | BAND_GN;
1853         } else {
1854                 if (cfg80211_get_chandef_type(&params->chandef) ==
1855                                                 NL80211_CHAN_NO_HT)
1856                         config_bands = BAND_A;
1857                 else
1858                         config_bands = BAND_AN | BAND_A;
1859         }
1860
1861         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1862                 adapter->config_bands = config_bands;
1863                 adapter->adhoc_start_band = config_bands;
1864
1865                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1866                         adapter->adhoc_11n_enabled = true;
1867                 else
1868                         adapter->adhoc_11n_enabled = false;
1869         }
1870
1871         adapter->sec_chan_offset =
1872                 mwifiex_chan_type_to_sec_chan_offset(
1873                         cfg80211_get_chandef_type(&params->chandef));
1874         priv->adhoc_channel = ieee80211_frequency_to_channel(
1875                                 params->chandef.chan->center_freq);
1876
1877         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1878                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1879
1880         return 0;
1881 }
1882
1883 /*
1884  * CFG802.11 operation handler to join an IBSS.
1885  *
1886  * This function does not work in any mode other than Ad-Hoc, or if
1887  * a join operation is already in progress.
1888  */
1889 static int
1890 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1891                            struct cfg80211_ibss_params *params)
1892 {
1893         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1894         int ret = 0;
1895
1896         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1897                 wiphy_err(wiphy, "request to join ibss received "
1898                                 "when station is not in ibss mode\n");
1899                 goto done;
1900         }
1901
1902         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1903                   (char *) params->ssid, params->bssid);
1904
1905         mwifiex_set_ibss_params(priv, params);
1906
1907         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1908                                      params->bssid, priv->bss_mode,
1909                                      params->chandef.chan, NULL,
1910                                      params->privacy);
1911 done:
1912         if (!ret) {
1913                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1914                                      params->chandef.chan, GFP_KERNEL);
1915                 dev_dbg(priv->adapter->dev,
1916                         "info: joined/created adhoc network with bssid"
1917                         " %pM successfully\n", priv->cfg_bssid);
1918         } else {
1919                 dev_dbg(priv->adapter->dev,
1920                         "info: failed creating/joining adhoc network\n");
1921         }
1922
1923         return ret;
1924 }
1925
1926 /*
1927  * CFG802.11 operation handler to leave an IBSS.
1928  *
1929  * This function does not work if a leave operation is
1930  * already in progress.
1931  */
1932 static int
1933 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1934 {
1935         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1936
1937         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1938                   priv->cfg_bssid);
1939         if (mwifiex_deauthenticate(priv, NULL))
1940                 return -EFAULT;
1941
1942         memset(priv->cfg_bssid, 0, ETH_ALEN);
1943
1944         return 0;
1945 }
1946
1947 /*
1948  * CFG802.11 operation handler for scan request.
1949  *
1950  * This function issues a scan request to the firmware based upon
1951  * the user specified scan configuration. On successfull completion,
1952  * it also informs the results.
1953  */
1954 static int
1955 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1956                       struct cfg80211_scan_request *request)
1957 {
1958         struct net_device *dev = request->wdev->netdev;
1959         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1960         int i, offset, ret;
1961         struct ieee80211_channel *chan;
1962         struct ieee_types_header *ie;
1963         struct mwifiex_user_scan_cfg *user_scan_cfg;
1964
1965         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1966
1967         if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1968             atomic_read(&priv->wmm.tx_pkts_queued) >=
1969             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1970                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1971                 return -EBUSY;
1972         }
1973
1974         /* Block scan request if scan operation or scan cleanup when interface
1975          * is disabled is in process
1976          */
1977         if (priv->scan_request || priv->scan_aborting) {
1978                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1979                 return -EBUSY;
1980         }
1981
1982         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1983         if (!user_scan_cfg)
1984                 return -ENOMEM;
1985
1986         priv->scan_request = request;
1987
1988         user_scan_cfg->num_ssids = request->n_ssids;
1989         user_scan_cfg->ssid_list = request->ssids;
1990
1991         if (request->ie && request->ie_len) {
1992                 offset = 0;
1993                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1994                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1995                                 continue;
1996                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1997                         ie = (struct ieee_types_header *)(request->ie + offset);
1998                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1999                         offset += sizeof(*ie) + ie->len;
2000
2001                         if (offset >= request->ie_len)
2002                                 break;
2003                 }
2004         }
2005
2006         for (i = 0; i < min_t(u32, request->n_channels,
2007                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2008                 chan = request->channels[i];
2009                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2010                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2011
2012                 if (chan->flags & IEEE80211_CHAN_NO_IR)
2013                         user_scan_cfg->chan_list[i].scan_type =
2014                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2015                 else
2016                         user_scan_cfg->chan_list[i].scan_type =
2017                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2018
2019                 user_scan_cfg->chan_list[i].scan_time = 0;
2020         }
2021
2022         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2023         kfree(user_scan_cfg);
2024         if (ret) {
2025                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2026                 priv->scan_aborting = false;
2027                 priv->scan_request = NULL;
2028                 return ret;
2029         }
2030
2031         if (request->ie && request->ie_len) {
2032                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2033                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2034                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2035                                 memset(&priv->vs_ie[i].ie, 0,
2036                                        MWIFIEX_MAX_VSIE_LEN);
2037                         }
2038                 }
2039         }
2040         return 0;
2041 }
2042
2043 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2044                                    struct mwifiex_private *priv)
2045 {
2046         struct mwifiex_adapter *adapter = priv->adapter;
2047
2048         vht_info->vht_supported = true;
2049
2050         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2051         /* Update MCS support for VHT */
2052         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2053                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2054         vht_info->vht_mcs.rx_highest = 0;
2055         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2056                                 adapter->hw_dot_11ac_mcs_support >> 16);
2057         vht_info->vht_mcs.tx_highest = 0;
2058 }
2059
2060 /*
2061  * This function sets up the CFG802.11 specific HT capability fields
2062  * with default values.
2063  *
2064  * The following default values are set -
2065  *      - HT Supported = True
2066  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2067  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2068  *      - HT Capabilities supported by firmware
2069  *      - MCS information, Rx mask = 0xff
2070  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2071  */
2072 static void
2073 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2074                       struct mwifiex_private *priv)
2075 {
2076         int rx_mcs_supp;
2077         struct ieee80211_mcs_info mcs_set;
2078         u8 *mcs = (u8 *)&mcs_set;
2079         struct mwifiex_adapter *adapter = priv->adapter;
2080
2081         ht_info->ht_supported = true;
2082         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2083         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2084
2085         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2086
2087         /* Fill HT capability information */
2088         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2089                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2090         else
2091                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2092
2093         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2094                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2095         else
2096                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2097
2098         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2099                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2100         else
2101                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2102
2103         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2104                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2105         else
2106                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2107
2108         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2109                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2110         else
2111                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2112
2113         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2114                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2115         else
2116                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2117
2118         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2119                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2120         else
2121                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2122
2123         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2124                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2125         else
2126                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2127
2128         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2129         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2130
2131         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2132         /* Set MCS for 1x1/2x2 */
2133         memset(mcs, 0xff, rx_mcs_supp);
2134         /* Clear all the other values */
2135         memset(&mcs[rx_mcs_supp], 0,
2136                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2137         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2138             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2139                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2140                 SETHT_MCS32(mcs_set.rx_mask);
2141
2142         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2143
2144         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2145 }
2146
2147 /*
2148  *  create a new virtual interface with the given name
2149  */
2150 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2151                                               const char *name,
2152                                               enum nl80211_iftype type,
2153                                               u32 *flags,
2154                                               struct vif_params *params)
2155 {
2156         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2157         struct mwifiex_private *priv;
2158         struct net_device *dev;
2159         void *mdev_priv;
2160         struct wireless_dev *wdev;
2161
2162         if (!adapter)
2163                 return ERR_PTR(-EFAULT);
2164
2165         switch (type) {
2166         case NL80211_IFTYPE_UNSPECIFIED:
2167         case NL80211_IFTYPE_STATION:
2168         case NL80211_IFTYPE_ADHOC:
2169                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2170                 if (priv->bss_mode) {
2171                         wiphy_err(wiphy,
2172                                   "cannot create multiple sta/adhoc ifaces\n");
2173                         return ERR_PTR(-EINVAL);
2174                 }
2175
2176                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2177                 if (!wdev)
2178                         return ERR_PTR(-ENOMEM);
2179
2180                 wdev->wiphy = wiphy;
2181                 priv->wdev = wdev;
2182                 wdev->iftype = NL80211_IFTYPE_STATION;
2183
2184                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2185                         priv->bss_mode = NL80211_IFTYPE_STATION;
2186                 else
2187                         priv->bss_mode = type;
2188
2189                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2190                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2191                 priv->bss_priority = 0;
2192                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2193                 priv->bss_num = 0;
2194
2195                 break;
2196         case NL80211_IFTYPE_AP:
2197                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2198
2199                 if (priv->bss_mode) {
2200                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2201                         return ERR_PTR(-EINVAL);
2202                 }
2203
2204                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2205                 if (!wdev)
2206                         return ERR_PTR(-ENOMEM);
2207
2208                 priv->wdev = wdev;
2209                 wdev->wiphy = wiphy;
2210                 wdev->iftype = NL80211_IFTYPE_AP;
2211
2212                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2213                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2214                 priv->bss_priority = 0;
2215                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2216                 priv->bss_started = 0;
2217                 priv->bss_num = 0;
2218                 priv->bss_mode = type;
2219
2220                 break;
2221         case NL80211_IFTYPE_P2P_CLIENT:
2222                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2223
2224                 if (priv->bss_mode) {
2225                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2226                         return ERR_PTR(-EINVAL);
2227                 }
2228
2229                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2230                 if (!wdev)
2231                         return ERR_PTR(-ENOMEM);
2232
2233                 priv->wdev = wdev;
2234                 wdev->wiphy = wiphy;
2235
2236                 /* At start-up, wpa_supplicant tries to change the interface
2237                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2238                  */
2239                 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2240                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2241
2242                 /* Setting bss_type to P2P tells firmware that this interface
2243                  * is receiving P2P peers found during find phase and doing
2244                  * action frame handshake.
2245                  */
2246                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2247
2248                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2249                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2250                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2251                 priv->bss_started = 0;
2252                 priv->bss_num = 0;
2253
2254                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2255                         wdev = ERR_PTR(-EFAULT);
2256                         goto done;
2257                 }
2258
2259                 break;
2260         default:
2261                 wiphy_err(wiphy, "type not supported\n");
2262                 return ERR_PTR(-EINVAL);
2263         }
2264
2265         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2266                                ether_setup, IEEE80211_NUM_ACS, 1);
2267         if (!dev) {
2268                 wiphy_err(wiphy, "no memory available for netdevice\n");
2269                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2270                 wdev = ERR_PTR(-ENOMEM);
2271                 goto done;
2272         }
2273
2274         mwifiex_init_priv_params(priv, dev);
2275         priv->netdev = dev;
2276
2277         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2278         if (adapter->is_hw_11ac_capable)
2279                 mwifiex_setup_vht_caps(
2280                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2281
2282         if (adapter->config_bands & BAND_A)
2283                 mwifiex_setup_ht_caps(
2284                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2285
2286         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2287                 mwifiex_setup_vht_caps(
2288                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2289
2290         dev_net_set(dev, wiphy_net(wiphy));
2291         dev->ieee80211_ptr = priv->wdev;
2292         dev->ieee80211_ptr->iftype = priv->bss_mode;
2293         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2294         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2295
2296         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2297         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2298         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2299         dev->ethtool_ops = &mwifiex_ethtool_ops;
2300
2301         mdev_priv = netdev_priv(dev);
2302         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2303
2304         SET_NETDEV_DEV(dev, adapter->dev);
2305
2306         /* Register network device */
2307         if (register_netdevice(dev)) {
2308                 wiphy_err(wiphy, "cannot register virtual network device\n");
2309                 free_netdev(dev);
2310                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2311                 priv->netdev = NULL;
2312                 wdev = ERR_PTR(-EFAULT);
2313                 goto done;
2314         }
2315
2316         sema_init(&priv->async_sem, 1);
2317
2318         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2319
2320 #ifdef CONFIG_DEBUG_FS
2321         mwifiex_dev_debugfs_init(priv);
2322 #endif
2323
2324 done:
2325         if (IS_ERR(wdev)) {
2326                 kfree(priv->wdev);
2327                 priv->wdev = NULL;
2328         }
2329
2330         return wdev;
2331 }
2332 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2333
2334 /*
2335  * del_virtual_intf: remove the virtual interface determined by dev
2336  */
2337 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2338 {
2339         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2340
2341 #ifdef CONFIG_DEBUG_FS
2342         mwifiex_dev_debugfs_remove(priv);
2343 #endif
2344
2345         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2346
2347         if (netif_carrier_ok(priv->netdev))
2348                 netif_carrier_off(priv->netdev);
2349
2350         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2351                 unregister_netdevice(wdev->netdev);
2352
2353         /* Clear the priv in adapter */
2354         priv->netdev->ieee80211_ptr = NULL;
2355         priv->netdev = NULL;
2356         kfree(wdev);
2357         priv->wdev = NULL;
2358
2359         priv->media_connected = false;
2360
2361         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2362
2363         return 0;
2364 }
2365 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2366
2367 static bool
2368 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2369                              u8 max_byte_seq)
2370 {
2371         int j, k, valid_byte_cnt = 0;
2372         bool dont_care_byte = false;
2373
2374         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2375                 for (k = 0; k < 8; k++) {
2376                         if (pat->mask[j] & 1 << k) {
2377                                 memcpy(byte_seq + valid_byte_cnt,
2378                                        &pat->pattern[j * 8 + k], 1);
2379                                 valid_byte_cnt++;
2380                                 if (dont_care_byte)
2381                                         return false;
2382                         } else {
2383                                 if (valid_byte_cnt)
2384                                         dont_care_byte = true;
2385                         }
2386
2387                         if (valid_byte_cnt > max_byte_seq)
2388                                 return false;
2389                 }
2390         }
2391
2392         byte_seq[max_byte_seq] = valid_byte_cnt;
2393
2394         return true;
2395 }
2396
2397 #ifdef CONFIG_PM
2398 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2399                                     struct cfg80211_wowlan *wowlan)
2400 {
2401         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2402         struct mwifiex_ds_mef_cfg mef_cfg;
2403         struct mwifiex_mef_entry *mef_entry;
2404         int i, filt_num = 0, ret;
2405         bool first_pat = true;
2406         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2407         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2408         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2409         struct mwifiex_private *priv =
2410                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2411
2412         if (!wowlan) {
2413                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2414                 return 0;
2415         }
2416
2417         if (!priv->media_connected) {
2418                 dev_warn(adapter->dev,
2419                          "Can not configure WOWLAN in disconnected state\n");
2420                 return 0;
2421         }
2422
2423         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2424         if (!mef_entry)
2425                 return -ENOMEM;
2426
2427         memset(&mef_cfg, 0, sizeof(mef_cfg));
2428         mef_cfg.num_entries = 1;
2429         mef_cfg.mef_entry = mef_entry;
2430         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2431         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2432
2433         for (i = 0; i < wowlan->n_patterns; i++) {
2434                 memset(byte_seq, 0, sizeof(byte_seq));
2435                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2436                                                   byte_seq,
2437                                                   MWIFIEX_MEF_MAX_BYTESEQ)) {
2438                         wiphy_err(wiphy, "Pattern not supported\n");
2439                         kfree(mef_entry);
2440                         return -EOPNOTSUPP;
2441                 }
2442
2443                 if (!wowlan->patterns[i].pkt_offset) {
2444                         if (!(byte_seq[0] & 0x01) &&
2445                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2446                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2447                                 continue;
2448                         } else if (is_broadcast_ether_addr(byte_seq)) {
2449                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2450                                 continue;
2451                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2452                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2453                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2454                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2455                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2456                                 continue;
2457                         }
2458                 }
2459
2460                 mef_entry->filter[filt_num].repeat = 1;
2461                 mef_entry->filter[filt_num].offset =
2462                                                 wowlan->patterns[i].pkt_offset;
2463                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2464                        sizeof(byte_seq));
2465                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2466
2467                 if (first_pat)
2468                         first_pat = false;
2469                 else
2470                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2471
2472                 filt_num++;
2473         }
2474
2475         if (wowlan->magic_pkt) {
2476                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2477                 mef_entry->filter[filt_num].repeat = 16;
2478                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2479                        ETH_ALEN);
2480                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2481                                                                 ETH_ALEN;
2482                 mef_entry->filter[filt_num].offset = 28;
2483                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2484                 if (filt_num)
2485                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2486         }
2487
2488         if (!mef_cfg.criteria)
2489                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2490                                    MWIFIEX_CRITERIA_UNICAST |
2491                                    MWIFIEX_CRITERIA_MULTICAST;
2492
2493         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2494                                HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2495
2496         kfree(mef_entry);
2497         return ret;
2498 }
2499
2500 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2501 {
2502         return 0;
2503 }
2504
2505 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2506                                        bool enabled)
2507 {
2508         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2509
2510         device_set_wakeup_enable(adapter->dev, enabled);
2511 }
2512 #endif
2513
2514 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2515 {
2516         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2517         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2518         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2519
2520         if ((byte_seq[0] & 0x01) &&
2521             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2522                 return PACKET_TYPE_UNICAST;
2523         else if (!memcmp(byte_seq, bc_mac, 4))
2524                 return PACKET_TYPE_BROADCAST;
2525         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2526                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2527                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2528                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2529                 return PACKET_TYPE_MULTICAST;
2530
2531         return 0;
2532 }
2533
2534 static int
2535 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2536                                 struct cfg80211_coalesce_rules *crule,
2537                                 struct mwifiex_coalesce_rule *mrule)
2538 {
2539         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2540         struct filt_field_param *param;
2541         int i;
2542
2543         mrule->max_coalescing_delay = crule->delay;
2544
2545         param = mrule->params;
2546
2547         for (i = 0; i < crule->n_patterns; i++) {
2548                 memset(byte_seq, 0, sizeof(byte_seq));
2549                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2550                                                   byte_seq,
2551                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2552                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2553                         return -EOPNOTSUPP;
2554                 }
2555
2556                 if (!crule->patterns[i].pkt_offset) {
2557                         u8 pkt_type;
2558
2559                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2560                         if (pkt_type && mrule->pkt_type) {
2561                                 dev_err(priv->adapter->dev,
2562                                         "Multiple packet types not allowed\n");
2563                                 return -EOPNOTSUPP;
2564                         } else if (pkt_type) {
2565                                 mrule->pkt_type = pkt_type;
2566                                 continue;
2567                         }
2568                 }
2569
2570                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2571                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2572                 else
2573                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
2574
2575                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2576                 memcpy(param->operand_byte_stream, byte_seq,
2577                        param->operand_len);
2578                 param->offset = crule->patterns[i].pkt_offset;
2579                 param++;
2580
2581                 mrule->num_of_fields++;
2582         }
2583
2584         if (!mrule->pkt_type) {
2585                 dev_err(priv->adapter->dev,
2586                         "Packet type can not be determined\n");
2587                 return -EOPNOTSUPP;
2588         }
2589
2590         return 0;
2591 }
2592
2593 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2594                                          struct cfg80211_coalesce *coalesce)
2595 {
2596         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2597         int i, ret;
2598         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2599         struct mwifiex_private *priv =
2600                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2601
2602         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2603         if (!coalesce) {
2604                 dev_dbg(adapter->dev,
2605                         "Disable coalesce and reset all previous rules\n");
2606                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2607                                         HostCmd_ACT_GEN_SET, 0,
2608                                         &coalesce_cfg, true);
2609         }
2610
2611         coalesce_cfg.num_of_rules = coalesce->n_rules;
2612         for (i = 0; i < coalesce->n_rules; i++) {
2613                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2614                                                       &coalesce_cfg.rule[i]);
2615                 if (ret) {
2616                         dev_err(priv->adapter->dev,
2617                                 "Recheck the patterns provided for rule %d\n",
2618                                 i + 1);
2619                         return ret;
2620                 }
2621         }
2622
2623         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2624                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2625 }
2626
2627 /* cfg80211 ops handler for tdls_mgmt.
2628  * Function prepares TDLS action frame packets and forwards them to FW
2629  */
2630 static int
2631 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2632                            const u8 *peer, u8 action_code, u8 dialog_token,
2633                            u16 status_code, u32 peer_capability,
2634                            bool initiator, const u8 *extra_ies,
2635                            size_t extra_ies_len)
2636 {
2637         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2638         int ret;
2639
2640         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2641                 return -ENOTSUPP;
2642
2643         /* make sure we are in station mode and connected */
2644         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2645                 return -ENOTSUPP;
2646
2647         switch (action_code) {
2648         case WLAN_TDLS_SETUP_REQUEST:
2649                 dev_dbg(priv->adapter->dev,
2650                         "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2651                          status_code);
2652                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2653                                                    dialog_token, status_code,
2654                                                    extra_ies, extra_ies_len);
2655                 break;
2656         case WLAN_TDLS_SETUP_RESPONSE:
2657                 dev_dbg(priv->adapter->dev,
2658                         "Send TDLS Setup Response to %pM status_code=%d\n",
2659                         peer, status_code);
2660                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2661                                                    dialog_token, status_code,
2662                                                    extra_ies, extra_ies_len);
2663                 break;
2664         case WLAN_TDLS_SETUP_CONFIRM:
2665                 dev_dbg(priv->adapter->dev,
2666                         "Send TDLS Confirm to %pM status_code=%d\n", peer,
2667                         status_code);
2668                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2669                                                    dialog_token, status_code,
2670                                                    extra_ies, extra_ies_len);
2671                 break;
2672         case WLAN_TDLS_TEARDOWN:
2673                 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2674                         peer);
2675                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2676                                                    dialog_token, status_code,
2677                                                    extra_ies, extra_ies_len);
2678                 break;
2679         case WLAN_TDLS_DISCOVERY_REQUEST:
2680                 dev_dbg(priv->adapter->dev,
2681                         "Send TDLS Discovery Request to %pM\n", peer);
2682                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2683                                                    dialog_token, status_code,
2684                                                    extra_ies, extra_ies_len);
2685                 break;
2686         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2687                 dev_dbg(priv->adapter->dev,
2688                         "Send TDLS Discovery Response to %pM\n", peer);
2689                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2690                                                    dialog_token, status_code,
2691                                                    extra_ies, extra_ies_len);
2692                 break;
2693         default:
2694                 dev_warn(priv->adapter->dev,
2695                          "Unknown TDLS mgmt/action frame %pM\n", peer);
2696                 ret = -EINVAL;
2697                 break;
2698         }
2699
2700         return ret;
2701 }
2702
2703 static int
2704 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2705                            const u8 *peer, enum nl80211_tdls_operation action)
2706 {
2707         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2708
2709         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2710             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2711                 return -ENOTSUPP;
2712
2713         /* make sure we are in station mode and connected */
2714         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2715                 return -ENOTSUPP;
2716
2717         dev_dbg(priv->adapter->dev,
2718                 "TDLS peer=%pM, oper=%d\n", peer, action);
2719
2720         switch (action) {
2721         case NL80211_TDLS_ENABLE_LINK:
2722                 action = MWIFIEX_TDLS_ENABLE_LINK;
2723                 break;
2724         case NL80211_TDLS_DISABLE_LINK:
2725                 action = MWIFIEX_TDLS_DISABLE_LINK;
2726                 break;
2727         case NL80211_TDLS_TEARDOWN:
2728                 /* shouldn't happen!*/
2729                 dev_warn(priv->adapter->dev,
2730                          "tdls_oper: teardown from driver not supported\n");
2731                 return -EINVAL;
2732         case NL80211_TDLS_SETUP:
2733                 /* shouldn't happen!*/
2734                 dev_warn(priv->adapter->dev,
2735                          "tdls_oper: setup from driver not supported\n");
2736                 return -EINVAL;
2737         case NL80211_TDLS_DISCOVERY_REQ:
2738                 /* shouldn't happen!*/
2739                 dev_warn(priv->adapter->dev,
2740                          "tdls_oper: discovery from driver not supported\n");
2741                 return -EINVAL;
2742         default:
2743                 dev_err(priv->adapter->dev,
2744                         "tdls_oper: operation not supported\n");
2745                 return -ENOTSUPP;
2746         }
2747
2748         return mwifiex_tdls_oper(priv, peer, action);
2749 }
2750
2751 static int
2752 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2753                              const u8 *mac, struct station_parameters *params)
2754 {
2755         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2756
2757         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2758                 return -ENOTSUPP;
2759
2760         /* make sure we are in station mode and connected */
2761         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2762                 return -ENOTSUPP;
2763
2764         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2765 }
2766
2767 static int
2768 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2769                                 const u8 *mac,
2770                                 struct station_parameters *params)
2771 {
2772         int ret;
2773         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2774
2775         /* we support change_station handler only for TDLS peers*/
2776         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2777                 return -ENOTSUPP;
2778
2779         /* make sure we are in station mode and connected */
2780         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2781                 return -ENOTSUPP;
2782
2783         priv->sta_params = params;
2784
2785         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2786         priv->sta_params = NULL;
2787
2788         return ret;
2789 }
2790
2791 /* station cfg80211 operations */
2792 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2793         .add_virtual_intf = mwifiex_add_virtual_intf,
2794         .del_virtual_intf = mwifiex_del_virtual_intf,
2795         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2796         .scan = mwifiex_cfg80211_scan,
2797         .connect = mwifiex_cfg80211_connect,
2798         .disconnect = mwifiex_cfg80211_disconnect,
2799         .get_station = mwifiex_cfg80211_get_station,
2800         .dump_station = mwifiex_cfg80211_dump_station,
2801         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2802         .join_ibss = mwifiex_cfg80211_join_ibss,
2803         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2804         .add_key = mwifiex_cfg80211_add_key,
2805         .del_key = mwifiex_cfg80211_del_key,
2806         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2807         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2808         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2809         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2810         .set_default_key = mwifiex_cfg80211_set_default_key,
2811         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2812         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2813         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2814         .start_ap = mwifiex_cfg80211_start_ap,
2815         .stop_ap = mwifiex_cfg80211_stop_ap,
2816         .change_beacon = mwifiex_cfg80211_change_beacon,
2817         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2818         .set_antenna = mwifiex_cfg80211_set_antenna,
2819         .del_station = mwifiex_cfg80211_del_station,
2820 #ifdef CONFIG_PM
2821         .suspend = mwifiex_cfg80211_suspend,
2822         .resume = mwifiex_cfg80211_resume,
2823         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2824 #endif
2825         .set_coalesce = mwifiex_cfg80211_set_coalesce,
2826         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2827         .tdls_oper = mwifiex_cfg80211_tdls_oper,
2828         .add_station = mwifiex_cfg80211_add_station,
2829         .change_station = mwifiex_cfg80211_change_station,
2830 };
2831
2832 #ifdef CONFIG_PM
2833 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2834         .flags = WIPHY_WOWLAN_MAGIC_PKT,
2835         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2836         .pattern_min_len = 1,
2837         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2838         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2839 };
2840 #endif
2841
2842 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2843 {
2844         if (!alpha2 || strlen(alpha2) != 2)
2845                 return false;
2846
2847         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2848                 return true;
2849
2850         return false;
2851 }
2852
2853 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2854         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2855         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2856         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2857         .pattern_min_len = 1,
2858         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2859         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2860 };
2861
2862 /*
2863  * This function registers the device with CFG802.11 subsystem.
2864  *
2865  * The function creates the wireless device/wiphy, populates it with
2866  * default parameters and handler function pointers, and finally
2867  * registers the device.
2868  */
2869
2870 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2871 {
2872         int ret;
2873         void *wdev_priv;
2874         struct wiphy *wiphy;
2875         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2876         u8 *country_code;
2877         u32 thr, retry;
2878
2879         /* create a new wiphy for use with cfg80211 */
2880         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2881                           sizeof(struct mwifiex_adapter *));
2882         if (!wiphy) {
2883                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2884                 return -ENOMEM;
2885         }
2886         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2887         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2888         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2889         wiphy->max_remain_on_channel_duration = 5000;
2890         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2891                                  BIT(NL80211_IFTYPE_ADHOC) |
2892                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2893                                  BIT(NL80211_IFTYPE_P2P_GO) |
2894                                  BIT(NL80211_IFTYPE_AP);
2895
2896         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2897         if (adapter->config_bands & BAND_A)
2898                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2899         else
2900                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2901
2902         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2903         wiphy->n_iface_combinations = 1;
2904
2905         /* Initialize cipher suits */
2906         wiphy->cipher_suites = mwifiex_cipher_suites;
2907         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2908
2909         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2910         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2911         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2912                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2913                         WIPHY_FLAG_AP_UAPSD |
2914                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2915
2916         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2917                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2918                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2919
2920         wiphy->regulatory_flags |=
2921                         REGULATORY_CUSTOM_REG |
2922                         REGULATORY_STRICT_REG;
2923
2924         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2925
2926 #ifdef CONFIG_PM
2927         wiphy->wowlan = &mwifiex_wowlan_support;
2928 #endif
2929
2930         wiphy->coalesce = &mwifiex_coalesce_support;
2931
2932         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2933                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2934                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2935
2936         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2937         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2938
2939         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2940                            NL80211_FEATURE_INACTIVITY_TIMER |
2941                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
2942                            NL80211_FEATURE_NEED_OBSS_SCAN;
2943
2944         /* Reserve space for mwifiex specific private data for BSS */
2945         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2946
2947         wiphy->reg_notifier = mwifiex_reg_notifier;
2948
2949         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2950         wdev_priv = wiphy_priv(wiphy);
2951         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2952
2953         set_wiphy_dev(wiphy, priv->adapter->dev);
2954
2955         ret = wiphy_register(wiphy);
2956         if (ret < 0) {
2957                 dev_err(adapter->dev,
2958                         "%s: wiphy_register failed: %d\n", __func__, ret);
2959                 wiphy_free(wiphy);
2960                 return ret;
2961         }
2962
2963         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
2964                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
2965                 regulatory_hint(wiphy, reg_alpha2);
2966         } else {
2967                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
2968                 if (country_code)
2969                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
2970                                    country_code);
2971         }
2972
2973         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2974                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
2975         wiphy->frag_threshold = thr;
2976         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2977                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
2978         wiphy->rts_threshold = thr;
2979         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2980                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
2981         wiphy->retry_short = (u8) retry;
2982         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2983                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
2984         wiphy->retry_long = (u8) retry;
2985
2986         adapter->wiphy = wiphy;
2987         return ret;
2988 }