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_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
 256                                        HostCmd_ACT_GEN_SET, 0,
 257                                        &priv->mgmt_frame_mask);
 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_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 519                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 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_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 584                                      HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 585                                      &frag_thr);
 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_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 601                                     HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 602                                     &rts_thr);
 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_sync(priv,
 641                                                     HostCmd_CMD_UAP_BSS_STOP,
 642                                                     HostCmd_ACT_GEN_SET, 0,
 643                                                     NULL);
 644                         if (ret) {
 645                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 646                                 kfree(bss_cfg);
 647                                 return ret;
 648                         }
 649
 650                         ret = mwifiex_send_cmd_async(priv,
 651                                                      HostCmd_CMD_UAP_SYS_CONFIG,
 652                                                      HostCmd_ACT_GEN_SET,
 653                                                      UAP_BSS_PARAMS_I, bss_cfg);
 654
 655                         kfree(bss_cfg);
 656
 657                         if (ret) {
 658                                 wiphy_err(wiphy, "Failed to set bss config\n");
 659                                 return ret;
 660                         }
 661
 662                         if (!bss_started)
 663                                 break;
 664
 665                         ret = mwifiex_send_cmd_async(priv,
 666                                                      HostCmd_CMD_UAP_BSS_START,
 667                                                      HostCmd_ACT_GEN_SET, 0,
 668                                                      NULL);
 669                         if (ret) {
 670                                 wiphy_err(wiphy, "Failed to start BSS\n");
 671                                 return ret;
 672                         }
 673
 674                         break;
 675                 case MWIFIEX_BSS_ROLE_STA:
 676                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 677                                 ret = mwifiex_set_rts(priv,
 678                                                       wiphy->rts_threshold);
 679                                 if (ret)
 680                                         return ret;
 681                         }
 682                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 683                                 ret = mwifiex_set_frag(priv,
 684                                                        wiphy->frag_threshold);
 685                                 if (ret)
 686                                         return ret;
 687                         }
 688                         break;
 689                 }
 690         }
 691
 692         return 0;
 693 }
 694
 695 static int
 696 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 697 {
 698         u16 mode = P2P_MODE_DISABLE;
 699
 700         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 701                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 702
 703         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 704                                   HostCmd_ACT_GEN_SET, 0, &mode))
 705                 return -1;
 706
 707         return 0;
 708 }
 709
 710 /*
 711  * This function initializes the functionalities for P2P client.
 712  * The P2P client initialization sequence is:
 713  * disable -> device -> client
 714  */
 715 static int
 716 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 717 {
 718         u16 mode;
 719
 720         if (mwifiex_cfg80211_deinit_p2p(priv))
 721                 return -1;
 722
 723         mode = P2P_MODE_DEVICE;
 724         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 725                                   HostCmd_ACT_GEN_SET, 0, &mode))
 726                 return -1;
 727
 728         mode = P2P_MODE_CLIENT;
 729         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 730                                   HostCmd_ACT_GEN_SET, 0, &mode))
 731                 return -1;
 732
 733         return 0;
 734 }
 735
 736 /*
 737  * This function initializes the functionalities for P2P GO.
 738  * The P2P GO initialization sequence is:
 739  * disable -> device -> GO
 740  */
 741 static int
 742 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 743 {
 744         u16 mode;
 745
 746         if (mwifiex_cfg80211_deinit_p2p(priv))
 747                 return -1;
 748
 749         mode = P2P_MODE_DEVICE;
 750         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 751                                   HostCmd_ACT_GEN_SET, 0, &mode))
 752                 return -1;
 753
 754         mode = P2P_MODE_GO;
 755         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 756                                   HostCmd_ACT_GEN_SET, 0, &mode))
 757                 return -1;
 758
 759         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 760                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 761
 762         return 0;
 763 }
 764
 765 /*
 766  * CFG802.11 operation handler to change interface type.
 767  */
 768 static int
 769 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 770                                      struct net_device *dev,
 771                                      enum nl80211_iftype type, u32 *flags,
 772                                      struct vif_params *params)
 773 {
 774         int ret;
 775         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 776
 777         switch (dev->ieee80211_ptr->iftype) {
 778         case NL80211_IFTYPE_ADHOC:
 779                 switch (type) {
 780                 case NL80211_IFTYPE_STATION:
 781                         break;
 782                 case NL80211_IFTYPE_UNSPECIFIED:
 783                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 784                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 785                         return 0;
 786                 case NL80211_IFTYPE_AP:
 787                 default:
 788                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 789                                   dev->name, type);
 790                         return -EOPNOTSUPP;
 791                 }
 792                 break;
 793         case NL80211_IFTYPE_STATION:
 794                 switch (type) {
 795                 case NL80211_IFTYPE_ADHOC:
 796                         break;
 797                 case NL80211_IFTYPE_P2P_CLIENT:
 798                         if (mwifiex_cfg80211_init_p2p_client(priv))
 799                                 return -EFAULT;
 800                         dev->ieee80211_ptr->iftype = type;
 801                         return 0;
 802                 case NL80211_IFTYPE_P2P_GO:
 803                         if (mwifiex_cfg80211_init_p2p_go(priv))
 804                                 return -EFAULT;
 805                         dev->ieee80211_ptr->iftype = type;
 806                         return 0;
 807                 case NL80211_IFTYPE_UNSPECIFIED:
 808                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 809                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 810                         return 0;
 811                 case NL80211_IFTYPE_AP:
 812                 default:
 813                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 814                                   dev->name, type);
 815                         return -EOPNOTSUPP;
 816                 }
 817                 break;
 818         case NL80211_IFTYPE_AP:
 819                 switch (type) {
 820                 case NL80211_IFTYPE_UNSPECIFIED:
 821                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 822                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 823                         return 0;
 824                 case NL80211_IFTYPE_ADHOC:
 825                 case NL80211_IFTYPE_STATION:
 826                 default:
 827                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 828                                   dev->name, type);
 829                         return -EOPNOTSUPP;
 830                 }
 831                 break;
 832         case NL80211_IFTYPE_P2P_CLIENT:
 833         case NL80211_IFTYPE_P2P_GO:
 834                 switch (type) {
 835                 case NL80211_IFTYPE_STATION:
 836                         if (mwifiex_cfg80211_deinit_p2p(priv))
 837                                 return -EFAULT;
 838                         dev->ieee80211_ptr->iftype = type;
 839                         return 0;
 840                 default:
 841                         return -EOPNOTSUPP;
 842                 }
 843                 break;
 844         default:
 845                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 846                           dev->name, dev->ieee80211_ptr->iftype);
 847                 return -EOPNOTSUPP;
 848         }
 849
 850         dev->ieee80211_ptr->iftype = type;
 851         priv->bss_mode = type;
 852         mwifiex_deauthenticate(priv, NULL);
 853
 854         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 855
 856         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
 857                                     HostCmd_ACT_GEN_SET, 0, NULL);
 858
 859         return ret;
 860 }
 861
 862 static void
 863 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 864                      struct rate_info *rate)
 865 {
 866         struct mwifiex_adapter *adapter = priv->adapter;
 867
 868         if (adapter->is_hw_11ac_capable) {
 869                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 870                 if (tx_htinfo & BIT(0)) {
 871                         /* HT */
 872                         rate->mcs = priv->tx_rate;
 873                         rate->flags |= RATE_INFO_FLAGS_MCS;
 874                 }
 875                 if (tx_htinfo & BIT(1)) {
 876                         /* VHT */
 877                         rate->mcs = priv->tx_rate & 0x0F;
 878                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 879                 }
 880
 881                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 882                         /* HT or VHT */
 883                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 884                         case 0:
 885                                 /* This will be 20MHz */
 886                                 break;
 887                         case (BIT(2)):
 888                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 889                                 break;
 890                         case (BIT(3)):
 891                                 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 892                                 break;
 893                         case (BIT(3) | BIT(2)):
 894                                 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 895                                 break;
 896                         }
 897
 898                         if (tx_htinfo & BIT(4))
 899                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 900
 901                         if ((priv->tx_rate >> 4) == 1)
 902                                 rate->nss = 2;
 903                         else
 904                                 rate->nss = 1;
 905                 }
 906         } else {
 907                 /*
 908                  * Bit 0 in tx_htinfo indicates that current Tx rate
 909                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 910                  */
 911                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 912                         rate->mcs = priv->tx_rate;
 913                         rate->flags |= RATE_INFO_FLAGS_MCS;
 914                         if (tx_htinfo & BIT(1))
 915                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 916                         if (tx_htinfo & BIT(2))
 917                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 918                 }
 919         }
 920 }
 921
 922 /*
 923  * This function dumps the station information on a buffer.
 924  *
 925  * The following information are shown -
 926  *      - Total bytes transmitted
 927  *      - Total bytes received
 928  *      - Total packets transmitted
 929  *      - Total packets received
 930  *      - Signal quality level
 931  *      - Transmission rate
 932  */
 933 static int
 934 mwifiex_dump_station_info(struct mwifiex_private *priv,
 935                           struct station_info *sinfo)
 936 {
 937         u32 rate;
 938
 939         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 940                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 941                         STATION_INFO_TX_BITRATE |
 942                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 943
 944         /* Get signal information from the firmware */
 945         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 946                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 947                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 948                 return -EFAULT;
 949         }
 950
 951         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 952                 dev_err(priv->adapter->dev, "getting data rate\n");
 953                 return -EFAULT;
 954         }
 955
 956         /* Get DTIM period information from firmware */
 957         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 958                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 959                               &priv->dtim_period);
 960
 961         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 962
 963         sinfo->signal_avg = priv->bcn_rssi_avg;
 964         sinfo->rx_bytes = priv->stats.rx_bytes;
 965         sinfo->tx_bytes = priv->stats.tx_bytes;
 966         sinfo->rx_packets = priv->stats.rx_packets;
 967         sinfo->tx_packets = priv->stats.tx_packets;
 968         sinfo->signal = priv->bcn_rssi_avg;
 969         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 970         sinfo->txrate.legacy = rate * 5;
 971
 972         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 973                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 974                 sinfo->bss_param.flags = 0;
 975                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 976                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 977                         sinfo->bss_param.flags |=
 978                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 979                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 980                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 981                         sinfo->bss_param.flags |=
 982                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 983                 sinfo->bss_param.dtim_period = priv->dtim_period;
 984                 sinfo->bss_param.beacon_interval =
 985                         priv->curr_bss_params.bss_descriptor.beacon_period;
 986         }
 987
 988         return 0;
 989 }
 990
 991 /*
 992  * CFG802.11 operation handler to get station information.
 993  *
 994  * This function only works in connected mode, and dumps the
 995  * requested station information, if available.
 996  */
 997 static int
 998 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 999                              u8 *mac, struct station_info *sinfo)
1000 {
1001         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1002
1003         if (!priv->media_connected)
1004                 return -ENOENT;
1005         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1006                 return -ENOENT;
1007
1008         return mwifiex_dump_station_info(priv, sinfo);
1009 }
1010
1011 /*
1012  * CFG802.11 operation handler to dump station information.
1013  */
1014 static int
1015 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1016                               int idx, u8 *mac, struct station_info *sinfo)
1017 {
1018         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1019
1020         if (!priv->media_connected || idx)
1021                 return -ENOENT;
1022
1023         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1024
1025         return mwifiex_dump_station_info(priv, sinfo);
1026 }
1027
1028 /* Supported rates to be advertised to the cfg80211 */
1029 static struct ieee80211_rate mwifiex_rates[] = {
1030         {.bitrate = 10, .hw_value = 2, },
1031         {.bitrate = 20, .hw_value = 4, },
1032         {.bitrate = 55, .hw_value = 11, },
1033         {.bitrate = 110, .hw_value = 22, },
1034         {.bitrate = 60, .hw_value = 12, },
1035         {.bitrate = 90, .hw_value = 18, },
1036         {.bitrate = 120, .hw_value = 24, },
1037         {.bitrate = 180, .hw_value = 36, },
1038         {.bitrate = 240, .hw_value = 48, },
1039         {.bitrate = 360, .hw_value = 72, },
1040         {.bitrate = 480, .hw_value = 96, },
1041         {.bitrate = 540, .hw_value = 108, },
1042 };
1043
1044 /* Channel definitions to be advertised to cfg80211 */
1045 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1046         {.center_freq = 2412, .hw_value = 1, },
1047         {.center_freq = 2417, .hw_value = 2, },
1048         {.center_freq = 2422, .hw_value = 3, },
1049         {.center_freq = 2427, .hw_value = 4, },
1050         {.center_freq = 2432, .hw_value = 5, },
1051         {.center_freq = 2437, .hw_value = 6, },
1052         {.center_freq = 2442, .hw_value = 7, },
1053         {.center_freq = 2447, .hw_value = 8, },
1054         {.center_freq = 2452, .hw_value = 9, },
1055         {.center_freq = 2457, .hw_value = 10, },
1056         {.center_freq = 2462, .hw_value = 11, },
1057         {.center_freq = 2467, .hw_value = 12, },
1058         {.center_freq = 2472, .hw_value = 13, },
1059         {.center_freq = 2484, .hw_value = 14, },
1060 };
1061
1062 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1063         .channels = mwifiex_channels_2ghz,
1064         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1065         .bitrates = mwifiex_rates,
1066         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1067 };
1068
1069 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1070         {.center_freq = 5040, .hw_value = 8, },
1071         {.center_freq = 5060, .hw_value = 12, },
1072         {.center_freq = 5080, .hw_value = 16, },
1073         {.center_freq = 5170, .hw_value = 34, },
1074         {.center_freq = 5190, .hw_value = 38, },
1075         {.center_freq = 5210, .hw_value = 42, },
1076         {.center_freq = 5230, .hw_value = 46, },
1077         {.center_freq = 5180, .hw_value = 36, },
1078         {.center_freq = 5200, .hw_value = 40, },
1079         {.center_freq = 5220, .hw_value = 44, },
1080         {.center_freq = 5240, .hw_value = 48, },
1081         {.center_freq = 5260, .hw_value = 52, },
1082         {.center_freq = 5280, .hw_value = 56, },
1083         {.center_freq = 5300, .hw_value = 60, },
1084         {.center_freq = 5320, .hw_value = 64, },
1085         {.center_freq = 5500, .hw_value = 100, },
1086         {.center_freq = 5520, .hw_value = 104, },
1087         {.center_freq = 5540, .hw_value = 108, },
1088         {.center_freq = 5560, .hw_value = 112, },
1089         {.center_freq = 5580, .hw_value = 116, },
1090         {.center_freq = 5600, .hw_value = 120, },
1091         {.center_freq = 5620, .hw_value = 124, },
1092         {.center_freq = 5640, .hw_value = 128, },
1093         {.center_freq = 5660, .hw_value = 132, },
1094         {.center_freq = 5680, .hw_value = 136, },
1095         {.center_freq = 5700, .hw_value = 140, },
1096         {.center_freq = 5745, .hw_value = 149, },
1097         {.center_freq = 5765, .hw_value = 153, },
1098         {.center_freq = 5785, .hw_value = 157, },
1099         {.center_freq = 5805, .hw_value = 161, },
1100         {.center_freq = 5825, .hw_value = 165, },
1101 };
1102
1103 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1104         .channels = mwifiex_channels_5ghz,
1105         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1106         .bitrates = mwifiex_rates + 4,
1107         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1108 };
1109
1110
1111 /* Supported crypto cipher suits to be advertised to cfg80211 */
1112 static const u32 mwifiex_cipher_suites[] = {
1113         WLAN_CIPHER_SUITE_WEP40,
1114         WLAN_CIPHER_SUITE_WEP104,
1115         WLAN_CIPHER_SUITE_TKIP,
1116         WLAN_CIPHER_SUITE_CCMP,
1117         WLAN_CIPHER_SUITE_AES_CMAC,
1118 };
1119
1120 /* Supported mgmt frame types to be advertised to cfg80211 */
1121 static const struct ieee80211_txrx_stypes
1122 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1123         [NL80211_IFTYPE_STATION] = {
1124                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1125                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1126                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1127                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1128         },
1129         [NL80211_IFTYPE_AP] = {
1130                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1131                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1132                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1133                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1134         },
1135         [NL80211_IFTYPE_P2P_CLIENT] = {
1136                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1137                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1138                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1139                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1140         },
1141         [NL80211_IFTYPE_P2P_GO] = {
1142                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1143                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1144                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1145                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1146         },
1147 };
1148
1149 /*
1150  * CFG802.11 operation handler for setting bit rates.
1151  *
1152  * Function configures data rates to firmware using bitrate mask
1153  * provided by cfg80211.
1154  */
1155 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1156                                 struct net_device *dev,
1157                                 const u8 *peer,
1158                                 const struct cfg80211_bitrate_mask *mask)
1159 {
1160         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1161         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1162         enum ieee80211_band band;
1163
1164         if (!priv->media_connected) {
1165                 dev_err(priv->adapter->dev,
1166                         "Can not set Tx data rate in disconnected state\n");
1167                 return -EINVAL;
1168         }
1169
1170         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1171
1172         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1173
1174         /* Fill HR/DSSS rates. */
1175         if (band == IEEE80211_BAND_2GHZ)
1176                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1177
1178         /* Fill OFDM rates */
1179         if (band == IEEE80211_BAND_2GHZ)
1180                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1181         else
1182                 bitmap_rates[1] = mask->control[band].legacy;
1183
1184         /* Fill HT MCS rates */
1185         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1186         if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1187                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1188
1189         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1190                                      HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1191 }
1192
1193 /*
1194  * CFG802.11 operation handler for connection quality monitoring.
1195  *
1196  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1197  * events to FW.
1198  */
1199 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1200                                                 struct net_device *dev,
1201                                                 s32 rssi_thold, u32 rssi_hyst)
1202 {
1203         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1204         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1205
1206         priv->cqm_rssi_thold = rssi_thold;
1207         priv->cqm_rssi_hyst = rssi_hyst;
1208
1209         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1210         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1211
1212         /* Subscribe/unsubscribe low and high rssi events */
1213         if (rssi_thold && rssi_hyst) {
1214                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1215                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1216                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1217                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1218                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1219                 return mwifiex_send_cmd_sync(priv,
1220                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1221                                              0, 0, &subsc_evt);
1222         } else {
1223                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1224                 return mwifiex_send_cmd_sync(priv,
1225                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1226                                              0, 0, &subsc_evt);
1227         }
1228
1229         return 0;
1230 }
1231
1232 /* cfg80211 operation handler for change_beacon.
1233  * Function retrieves and sets modified management IEs to FW.
1234  */
1235 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1236                                           struct net_device *dev,
1237                                           struct cfg80211_beacon_data *data)
1238 {
1239         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1240
1241         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1242                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1243                 return -EINVAL;
1244         }
1245
1246         if (!priv->bss_started) {
1247                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1248                 return -EINVAL;
1249         }
1250
1251         if (mwifiex_set_mgmt_ies(priv, data)) {
1252                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1253                 return -EFAULT;
1254         }
1255
1256         return 0;
1257 }
1258
1259 /* cfg80211 operation handler for del_station.
1260  * Function deauthenticates station which value is provided in mac parameter.
1261  * If mac is NULL/broadcast, all stations in associated station list are
1262  * deauthenticated. If bss is not started or there are no stations in
1263  * associated stations list, no action is taken.
1264  */
1265 static int
1266 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1267                              u8 *mac)
1268 {
1269         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1270         struct mwifiex_sta_node *sta_node;
1271         unsigned long flags;
1272
1273         if (list_empty(&priv->sta_list) || !priv->bss_started)
1274                 return 0;
1275
1276         if (!mac || is_broadcast_ether_addr(mac)) {
1277                 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1278                 list_for_each_entry(sta_node, &priv->sta_list, list) {
1279                         if (mwifiex_send_cmd_sync(priv,
1280                                                   HostCmd_CMD_UAP_STA_DEAUTH,
1281                                                   HostCmd_ACT_GEN_SET, 0,
1282                                                   sta_node->mac_addr))
1283                                 return -1;
1284                         mwifiex_uap_del_sta_data(priv, sta_node);
1285                 }
1286         } else {
1287                 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
1288                 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1289                 sta_node = mwifiex_get_sta_entry(priv, mac);
1290                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1291                 if (sta_node) {
1292                         if (mwifiex_send_cmd_sync(priv,
1293                                                   HostCmd_CMD_UAP_STA_DEAUTH,
1294                                                   HostCmd_ACT_GEN_SET, 0,
1295                                                   sta_node->mac_addr))
1296                                 return -1;
1297                         mwifiex_uap_del_sta_data(priv, sta_node);
1298                 }
1299         }
1300
1301         return 0;
1302 }
1303
1304 static int
1305 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1306 {
1307         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1308         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1309                                                         MWIFIEX_BSS_ROLE_ANY);
1310         struct mwifiex_ds_ant_cfg ant_cfg;
1311
1312         if (!tx_ant || !rx_ant)
1313                 return -EOPNOTSUPP;
1314
1315         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1316                 /* Not a MIMO chip. User should provide specific antenna number
1317                  * for Tx/Rx path or enable all antennas for diversity
1318                  */
1319                 if (tx_ant != rx_ant)
1320                         return -EOPNOTSUPP;
1321
1322                 if ((tx_ant & (tx_ant - 1)) &&
1323                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1324                         return -EOPNOTSUPP;
1325
1326                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1327                     (priv->adapter->number_of_antenna > 1)) {
1328                         tx_ant = RF_ANTENNA_AUTO;
1329                         rx_ant = RF_ANTENNA_AUTO;
1330                 }
1331         }
1332
1333         ant_cfg.tx_ant = tx_ant;
1334         ant_cfg.rx_ant = rx_ant;
1335
1336         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1337                                      HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1338 }
1339
1340 /* cfg80211 operation handler for stop ap.
1341  * Function stops BSS running at uAP interface.
1342  */
1343 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1344 {
1345         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1346
1347         if (mwifiex_del_mgmt_ies(priv))
1348                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1349
1350         priv->ap_11n_enabled = 0;
1351
1352         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1353                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1354                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1355                 return -1;
1356         }
1357
1358         return 0;
1359 }
1360
1361 /* cfg80211 operation handler for start_ap.
1362  * Function sets beacon period, DTIM period, SSID and security into
1363  * AP config structure.
1364  * AP is configured with these settings and BSS is started.
1365  */
1366 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1367                                      struct net_device *dev,
1368                                      struct cfg80211_ap_settings *params)
1369 {
1370         struct mwifiex_uap_bss_param *bss_cfg;
1371         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1372         u8 config_bands = 0;
1373
1374         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1375                 return -1;
1376         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1377                 return -1;
1378
1379         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1380         if (!bss_cfg)
1381                 return -ENOMEM;
1382
1383         mwifiex_set_sys_config_invalid_data(bss_cfg);
1384
1385         if (params->beacon_interval)
1386                 bss_cfg->beacon_period = params->beacon_interval;
1387         if (params->dtim_period)
1388                 bss_cfg->dtim_period = params->dtim_period;
1389
1390         if (params->ssid && params->ssid_len) {
1391                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1392                 bss_cfg->ssid.ssid_len = params->ssid_len;
1393         }
1394
1395         switch (params->hidden_ssid) {
1396         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1397                 bss_cfg->bcast_ssid_ctl = 1;
1398                 break;
1399         case NL80211_HIDDEN_SSID_ZERO_LEN:
1400                 bss_cfg->bcast_ssid_ctl = 0;
1401                 break;
1402         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1403                 /* firmware doesn't support this type of hidden SSID */
1404         default:
1405                 kfree(bss_cfg);
1406                 return -EINVAL;
1407         }
1408
1409         bss_cfg->channel = ieee80211_frequency_to_channel(
1410                                 params->chandef.chan->center_freq);
1411
1412         /* Set appropriate bands */
1413         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1414                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1415                 config_bands = BAND_B | BAND_G;
1416
1417                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1418                         config_bands |= BAND_GN;
1419         } else {
1420                 bss_cfg->band_cfg = BAND_CONFIG_A;
1421                 config_bands = BAND_A;
1422
1423                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1424                         config_bands |= BAND_AN;
1425
1426                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1427                         config_bands |= BAND_AAC;
1428         }
1429
1430         if (!((config_bands | priv->adapter->fw_bands) &
1431               ~priv->adapter->fw_bands))
1432                 priv->adapter->config_bands = config_bands;
1433
1434         mwifiex_set_uap_rates(bss_cfg, params);
1435         mwifiex_send_domain_info_cmd_fw(wiphy);
1436
1437         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1438                 kfree(bss_cfg);
1439                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1440                 return -1;
1441         }
1442
1443         mwifiex_set_ht_params(priv, bss_cfg, params);
1444
1445         if (priv->adapter->is_hw_11ac_capable) {
1446                 mwifiex_set_vht_params(priv, bss_cfg, params);
1447                 mwifiex_set_vht_width(priv, params->chandef.width,
1448                                       priv->ap_11ac_enabled);
1449         }
1450
1451         if (priv->ap_11ac_enabled)
1452                 mwifiex_set_11ac_ba_params(priv);
1453         else
1454                 mwifiex_set_ba_params(priv);
1455
1456         mwifiex_set_wmm_params(priv, bss_cfg, params);
1457
1458         if (params->inactivity_timeout > 0) {
1459                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1460                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1461                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1462         }
1463
1464         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1465                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1466                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1467                 kfree(bss_cfg);
1468                 return -1;
1469         }
1470
1471         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1472                                    HostCmd_ACT_GEN_SET,
1473                                    UAP_BSS_PARAMS_I, bss_cfg)) {
1474                 wiphy_err(wiphy, "Failed to set the SSID\n");
1475                 kfree(bss_cfg);
1476                 return -1;
1477         }
1478
1479         kfree(bss_cfg);
1480
1481         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1482                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
1483                 wiphy_err(wiphy, "Failed to start the BSS\n");
1484                 return -1;
1485         }
1486
1487         if (priv->sec_info.wep_enabled)
1488                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1489         else
1490                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1491
1492         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1493                                   HostCmd_ACT_GEN_SET, 0,
1494                                   &priv->curr_pkt_filter))
1495                 return -1;
1496
1497         return 0;
1498 }
1499
1500 /*
1501  * CFG802.11 operation handler for disconnection request.
1502  *
1503  * This function does not work when there is already a disconnection
1504  * procedure going on.
1505  */
1506 static int
1507 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1508                             u16 reason_code)
1509 {
1510         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1511
1512         if (mwifiex_deauthenticate(priv, NULL))
1513                 return -EFAULT;
1514
1515         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1516                 " reason code %d\n", priv->cfg_bssid, reason_code);
1517
1518         memset(priv->cfg_bssid, 0, ETH_ALEN);
1519         priv->hs2_enabled = false;
1520
1521         return 0;
1522 }
1523
1524 /*
1525  * This function informs the CFG802.11 subsystem of a new IBSS.
1526  *
1527  * The following information are sent to the CFG802.11 subsystem
1528  * to register the new IBSS. If we do not register the new IBSS,
1529  * a kernel panic will result.
1530  *      - SSID
1531  *      - SSID length
1532  *      - BSSID
1533  *      - Channel
1534  */
1535 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1536 {
1537         struct ieee80211_channel *chan;
1538         struct mwifiex_bss_info bss_info;
1539         struct cfg80211_bss *bss;
1540         int ie_len;
1541         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1542         enum ieee80211_band band;
1543
1544         if (mwifiex_get_bss_info(priv, &bss_info))
1545                 return -1;
1546
1547         ie_buf[0] = WLAN_EID_SSID;
1548         ie_buf[1] = bss_info.ssid.ssid_len;
1549
1550         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1551                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1552         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1553
1554         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1555         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1556                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1557                                                        band));
1558
1559         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1560                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1561                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1562         cfg80211_put_bss(priv->wdev->wiphy, bss);
1563         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1564
1565         return 0;
1566 }
1567
1568 /*
1569  * This function connects with a BSS.
1570  *
1571  * This function handles both Infra and Ad-Hoc modes. It also performs
1572  * validity checking on the provided parameters, disconnects from the
1573  * current BSS (if any), sets up the association/scan parameters,
1574  * including security settings, and performs specific SSID scan before
1575  * trying to connect.
1576  *
1577  * For Infra mode, the function returns failure if the specified SSID
1578  * is not found in scan table. However, for Ad-Hoc mode, it can create
1579  * the IBSS if it does not exist. On successful completion in either case,
1580  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1581  */
1582 static int
1583 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1584                        const u8 *ssid, const u8 *bssid, int mode,
1585                        struct ieee80211_channel *channel,
1586                        struct cfg80211_connect_params *sme, bool privacy)
1587 {
1588         struct cfg80211_ssid req_ssid;
1589         int ret, auth_type = 0;
1590         struct cfg80211_bss *bss = NULL;
1591         u8 is_scanning_required = 0;
1592
1593         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1594
1595         req_ssid.ssid_len = ssid_len;
1596         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1597                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1598                 return -EINVAL;
1599         }
1600
1601         memcpy(req_ssid.ssid, ssid, ssid_len);
1602         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1603                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1604                 return -EINVAL;
1605         }
1606
1607         /* disconnect before try to associate */
1608         mwifiex_deauthenticate(priv, NULL);
1609
1610         /* As this is new association, clear locally stored
1611          * keys and security related flags */
1612         priv->sec_info.wpa_enabled = false;
1613         priv->sec_info.wpa2_enabled = false;
1614         priv->wep_key_curr_index = 0;
1615         priv->sec_info.encryption_mode = 0;
1616         priv->sec_info.is_authtype_auto = 0;
1617         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1618
1619         if (mode == NL80211_IFTYPE_ADHOC) {
1620                 /* "privacy" is set only for ad-hoc mode */
1621                 if (privacy) {
1622                         /*
1623                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1624                          * the firmware can find a matching network from the
1625                          * scan. The cfg80211 does not give us the encryption
1626                          * mode at this stage so just setting it to WEP here.
1627                          */
1628                         priv->sec_info.encryption_mode =
1629                                         WLAN_CIPHER_SUITE_WEP104;
1630                         priv->sec_info.authentication_mode =
1631                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1632                 }
1633
1634                 goto done;
1635         }
1636
1637         /* Now handle infra mode. "sme" is valid for infra mode only */
1638         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1639                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1640                 priv->sec_info.is_authtype_auto = 1;
1641         } else {
1642                 auth_type = sme->auth_type;
1643         }
1644
1645         if (sme->crypto.n_ciphers_pairwise) {
1646                 priv->sec_info.encryption_mode =
1647                                                 sme->crypto.ciphers_pairwise[0];
1648                 priv->sec_info.authentication_mode = auth_type;
1649         }
1650
1651         if (sme->crypto.cipher_group) {
1652                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1653                 priv->sec_info.authentication_mode = auth_type;
1654         }
1655         if (sme->ie)
1656                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1657
1658         if (sme->key) {
1659                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1660                         dev_dbg(priv->adapter->dev,
1661                                 "info: setting wep encryption"
1662                                 " with key len %d\n", sme->key_len);
1663                         priv->wep_key_curr_index = sme->key_idx;
1664                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1665                                                  sme->key_len, sme->key_idx,
1666                                                  NULL, 0);
1667                 }
1668         }
1669 done:
1670         /*
1671          * Scan entries are valid for some time (15 sec). So we can save one
1672          * active scan time if we just try cfg80211_get_bss first. If it fails
1673          * then request scan and cfg80211_get_bss() again for final output.
1674          */
1675         while (1) {
1676                 if (is_scanning_required) {
1677                         /* Do specific SSID scanning */
1678                         if (mwifiex_request_scan(priv, &req_ssid)) {
1679                                 dev_err(priv->adapter->dev, "scan error\n");
1680                                 return -EFAULT;
1681                         }
1682                 }
1683
1684                 /* Find the BSS we want using available scan results */
1685                 if (mode == NL80211_IFTYPE_ADHOC)
1686                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1687                                                bssid, ssid, ssid_len,
1688                                                WLAN_CAPABILITY_IBSS,
1689                                                WLAN_CAPABILITY_IBSS);
1690                 else
1691                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1692                                                bssid, ssid, ssid_len,
1693                                                WLAN_CAPABILITY_ESS,
1694                                                WLAN_CAPABILITY_ESS);
1695
1696                 if (!bss) {
1697                         if (is_scanning_required) {
1698                                 dev_warn(priv->adapter->dev,
1699                                          "assoc: requested bss not found in scan results\n");
1700                                 break;
1701                         }
1702                         is_scanning_required = 1;
1703                 } else {
1704                         dev_dbg(priv->adapter->dev,
1705                                 "info: trying to associate to '%s' bssid %pM\n",
1706                                 (char *) req_ssid.ssid, bss->bssid);
1707                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1708                         break;
1709                 }
1710         }
1711
1712         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1713         if (ret)
1714                 return ret;
1715
1716         if (mode == NL80211_IFTYPE_ADHOC) {
1717                 /* Inform the BSS information to kernel, otherwise
1718                  * kernel will give a panic after successful assoc */
1719                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1720                         return -EFAULT;
1721         }
1722
1723         return ret;
1724 }
1725
1726 /*
1727  * CFG802.11 operation handler for association request.
1728  *
1729  * This function does not work when the current mode is set to Ad-Hoc, or
1730  * when there is already an association procedure going on. The given BSS
1731  * information is used to associate.
1732  */
1733 static int
1734 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1735                          struct cfg80211_connect_params *sme)
1736 {
1737         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1738         int ret;
1739
1740         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1741                 wiphy_err(wiphy,
1742                           "%s: reject infra assoc request in non-STA role\n",
1743                           dev->name);
1744                 return -EINVAL;
1745         }
1746
1747         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1748                   (char *) sme->ssid, sme->bssid);
1749
1750         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1751                                      priv->bss_mode, sme->channel, sme, 0);
1752         if (!ret) {
1753                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1754                                         NULL, 0, WLAN_STATUS_SUCCESS,
1755                                         GFP_KERNEL);
1756                 dev_dbg(priv->adapter->dev,
1757                         "info: associated to bssid %pM successfully\n",
1758                         priv->cfg_bssid);
1759         } else {
1760                 dev_dbg(priv->adapter->dev,
1761                         "info: association to bssid %pM failed\n",
1762                         priv->cfg_bssid);
1763                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1764
1765                 if (ret > 0)
1766                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1767                                                 NULL, 0, NULL, 0, ret,
1768                                                 GFP_KERNEL);
1769                 else
1770                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1771                                                 NULL, 0, NULL, 0,
1772                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1773                                                 GFP_KERNEL);
1774         }
1775
1776         return 0;
1777 }
1778
1779 /*
1780  * This function sets following parameters for ibss network.
1781  *  -  channel
1782  *  -  start band
1783  *  -  11n flag
1784  *  -  secondary channel offset
1785  */
1786 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1787                                    struct cfg80211_ibss_params *params)
1788 {
1789         struct wiphy *wiphy = priv->wdev->wiphy;
1790         struct mwifiex_adapter *adapter = priv->adapter;
1791         int index = 0, i;
1792         u8 config_bands = 0;
1793
1794         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1795                 if (!params->basic_rates) {
1796                         config_bands = BAND_B | BAND_G;
1797                 } else {
1798                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1799                                 /*
1800                                  * Rates below 6 Mbps in the table are CCK
1801                                  * rates; 802.11b and from 6 they are OFDM;
1802                                  * 802.11G
1803                                  */
1804                                 if (mwifiex_rates[i].bitrate == 60) {
1805                                         index = 1 << i;
1806                                         break;
1807                                 }
1808                         }
1809
1810                         if (params->basic_rates < index) {
1811                                 config_bands = BAND_B;
1812                         } else {
1813                                 config_bands = BAND_G;
1814                                 if (params->basic_rates % index)
1815                                         config_bands |= BAND_B;
1816                         }
1817                 }
1818
1819                 if (cfg80211_get_chandef_type(&params->chandef) !=
1820                                                 NL80211_CHAN_NO_HT)
1821                         config_bands |= BAND_G | BAND_GN;
1822         } else {
1823                 if (cfg80211_get_chandef_type(&params->chandef) ==
1824                                                 NL80211_CHAN_NO_HT)
1825                         config_bands = BAND_A;
1826                 else
1827                         config_bands = BAND_AN | BAND_A;
1828         }
1829
1830         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1831                 adapter->config_bands = config_bands;
1832                 adapter->adhoc_start_band = config_bands;
1833
1834                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1835                         adapter->adhoc_11n_enabled = true;
1836                 else
1837                         adapter->adhoc_11n_enabled = false;
1838         }
1839
1840         adapter->sec_chan_offset =
1841                 mwifiex_chan_type_to_sec_chan_offset(
1842                         cfg80211_get_chandef_type(&params->chandef));
1843         priv->adhoc_channel = ieee80211_frequency_to_channel(
1844                                 params->chandef.chan->center_freq);
1845
1846         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1847                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1848
1849         return 0;
1850 }
1851
1852 /*
1853  * CFG802.11 operation handler to join an IBSS.
1854  *
1855  * This function does not work in any mode other than Ad-Hoc, or if
1856  * a join operation is already in progress.
1857  */
1858 static int
1859 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1860                            struct cfg80211_ibss_params *params)
1861 {
1862         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1863         int ret = 0;
1864
1865         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1866                 wiphy_err(wiphy, "request to join ibss received "
1867                                 "when station is not in ibss mode\n");
1868                 goto done;
1869         }
1870
1871         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1872                   (char *) params->ssid, params->bssid);
1873
1874         mwifiex_set_ibss_params(priv, params);
1875
1876         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1877                                      params->bssid, priv->bss_mode,
1878                                      params->chandef.chan, NULL,
1879                                      params->privacy);
1880 done:
1881         if (!ret) {
1882                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1883                                      params->chandef.chan, GFP_KERNEL);
1884                 dev_dbg(priv->adapter->dev,
1885                         "info: joined/created adhoc network with bssid"
1886                         " %pM successfully\n", priv->cfg_bssid);
1887         } else {
1888                 dev_dbg(priv->adapter->dev,
1889                         "info: failed creating/joining adhoc network\n");
1890         }
1891
1892         return ret;
1893 }
1894
1895 /*
1896  * CFG802.11 operation handler to leave an IBSS.
1897  *
1898  * This function does not work if a leave operation is
1899  * already in progress.
1900  */
1901 static int
1902 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1903 {
1904         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1905
1906         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1907                   priv->cfg_bssid);
1908         if (mwifiex_deauthenticate(priv, NULL))
1909                 return -EFAULT;
1910
1911         memset(priv->cfg_bssid, 0, ETH_ALEN);
1912
1913         return 0;
1914 }
1915
1916 /*
1917  * CFG802.11 operation handler for scan request.
1918  *
1919  * This function issues a scan request to the firmware based upon
1920  * the user specified scan configuration. On successfull completion,
1921  * it also informs the results.
1922  */
1923 static int
1924 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1925                       struct cfg80211_scan_request *request)
1926 {
1927         struct net_device *dev = request->wdev->netdev;
1928         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1929         int i, offset, ret;
1930         struct ieee80211_channel *chan;
1931         struct ieee_types_header *ie;
1932         struct mwifiex_user_scan_cfg *user_scan_cfg;
1933
1934         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1935
1936         if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1937             atomic_read(&priv->wmm.tx_pkts_queued) >=
1938             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1939                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1940                 return -EBUSY;
1941         }
1942
1943         /* Block scan request if scan operation or scan cleanup when interface
1944          * is disabled is in process
1945          */
1946         if (priv->scan_request || priv->scan_aborting) {
1947                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1948                 return -EBUSY;
1949         }
1950
1951         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1952         if (!user_scan_cfg)
1953                 return -ENOMEM;
1954
1955         priv->scan_request = request;
1956
1957         user_scan_cfg->num_ssids = request->n_ssids;
1958         user_scan_cfg->ssid_list = request->ssids;
1959
1960         if (request->ie && request->ie_len) {
1961                 offset = 0;
1962                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1963                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1964                                 continue;
1965                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1966                         ie = (struct ieee_types_header *)(request->ie + offset);
1967                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1968                         offset += sizeof(*ie) + ie->len;
1969
1970                         if (offset >= request->ie_len)
1971                                 break;
1972                 }
1973         }
1974
1975         for (i = 0; i < min_t(u32, request->n_channels,
1976                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
1977                 chan = request->channels[i];
1978                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1979                 user_scan_cfg->chan_list[i].radio_type = chan->band;
1980
1981                 if (chan->flags & IEEE80211_CHAN_NO_IR)
1982                         user_scan_cfg->chan_list[i].scan_type =
1983                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1984                 else
1985                         user_scan_cfg->chan_list[i].scan_type =
1986                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1987
1988                 user_scan_cfg->chan_list[i].scan_time = 0;
1989         }
1990
1991         ret = mwifiex_scan_networks(priv, user_scan_cfg);
1992         kfree(user_scan_cfg);
1993         if (ret) {
1994                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1995                 priv->scan_aborting = false;
1996                 priv->scan_request = NULL;
1997                 return ret;
1998         }
1999
2000         if (request->ie && request->ie_len) {
2001                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2002                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2003                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2004                                 memset(&priv->vs_ie[i].ie, 0,
2005                                        MWIFIEX_MAX_VSIE_LEN);
2006                         }
2007                 }
2008         }
2009         return 0;
2010 }
2011
2012 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2013                                    struct mwifiex_private *priv)
2014 {
2015         struct mwifiex_adapter *adapter = priv->adapter;
2016
2017         vht_info->vht_supported = true;
2018
2019         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2020         /* Update MCS support for VHT */
2021         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2022                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2023         vht_info->vht_mcs.rx_highest = 0;
2024         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2025                                 adapter->hw_dot_11ac_mcs_support >> 16);
2026         vht_info->vht_mcs.tx_highest = 0;
2027 }
2028
2029 /*
2030  * This function sets up the CFG802.11 specific HT capability fields
2031  * with default values.
2032  *
2033  * The following default values are set -
2034  *      - HT Supported = True
2035  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2036  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2037  *      - HT Capabilities supported by firmware
2038  *      - MCS information, Rx mask = 0xff
2039  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2040  */
2041 static void
2042 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2043                       struct mwifiex_private *priv)
2044 {
2045         int rx_mcs_supp;
2046         struct ieee80211_mcs_info mcs_set;
2047         u8 *mcs = (u8 *)&mcs_set;
2048         struct mwifiex_adapter *adapter = priv->adapter;
2049
2050         ht_info->ht_supported = true;
2051         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2052         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2053
2054         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2055
2056         /* Fill HT capability information */
2057         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2058                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2059         else
2060                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2061
2062         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2063                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2064         else
2065                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2066
2067         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2068                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2069         else
2070                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2071
2072         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
2073                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2074         else
2075                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
2076
2077         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2078                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2079         else
2080                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2081
2082         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2083                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2084         else
2085                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2086
2087         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2088                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2089         else
2090                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2091
2092         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2093                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2094         else
2095                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2096
2097         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2098         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2099
2100         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
2101         /* Set MCS for 1x1 */
2102         memset(mcs, 0xff, rx_mcs_supp);
2103         /* Clear all the other values */
2104         memset(&mcs[rx_mcs_supp], 0,
2105                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2106         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2107             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2108                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2109                 SETHT_MCS32(mcs_set.rx_mask);
2110
2111         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2112
2113         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2114 }
2115
2116 /*
2117  *  create a new virtual interface with the given name
2118  */
2119 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2120                                               const char *name,
2121                                               enum nl80211_iftype type,
2122                                               u32 *flags,
2123                                               struct vif_params *params)
2124 {
2125         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2126         struct mwifiex_private *priv;
2127         struct net_device *dev;
2128         void *mdev_priv;
2129         struct wireless_dev *wdev;
2130
2131         if (!adapter)
2132                 return ERR_PTR(-EFAULT);
2133
2134         switch (type) {
2135         case NL80211_IFTYPE_UNSPECIFIED:
2136         case NL80211_IFTYPE_STATION:
2137         case NL80211_IFTYPE_ADHOC:
2138                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2139                 if (priv->bss_mode) {
2140                         wiphy_err(wiphy,
2141                                   "cannot create multiple sta/adhoc ifaces\n");
2142                         return ERR_PTR(-EINVAL);
2143                 }
2144
2145                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2146                 if (!wdev)
2147                         return ERR_PTR(-ENOMEM);
2148
2149                 wdev->wiphy = wiphy;
2150                 priv->wdev = wdev;
2151                 wdev->iftype = NL80211_IFTYPE_STATION;
2152
2153                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2154                         priv->bss_mode = NL80211_IFTYPE_STATION;
2155                 else
2156                         priv->bss_mode = type;
2157
2158                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2159                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2160                 priv->bss_priority = 0;
2161                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2162                 priv->bss_num = 0;
2163
2164                 break;
2165         case NL80211_IFTYPE_AP:
2166                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2167
2168                 if (priv->bss_mode) {
2169                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2170                         return ERR_PTR(-EINVAL);
2171                 }
2172
2173                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2174                 if (!wdev)
2175                         return ERR_PTR(-ENOMEM);
2176
2177                 priv->wdev = wdev;
2178                 wdev->wiphy = wiphy;
2179                 wdev->iftype = NL80211_IFTYPE_AP;
2180
2181                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2182                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2183                 priv->bss_priority = 0;
2184                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2185                 priv->bss_started = 0;
2186                 priv->bss_num = 0;
2187                 priv->bss_mode = type;
2188
2189                 break;
2190         case NL80211_IFTYPE_P2P_CLIENT:
2191                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2192
2193                 if (priv->bss_mode) {
2194                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2195                         return ERR_PTR(-EINVAL);
2196                 }
2197
2198                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2199                 if (!wdev)
2200                         return ERR_PTR(-ENOMEM);
2201
2202                 priv->wdev = wdev;
2203                 wdev->wiphy = wiphy;
2204
2205                 /* At start-up, wpa_supplicant tries to change the interface
2206                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2207                  */
2208                 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2209                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2210
2211                 /* Setting bss_type to P2P tells firmware that this interface
2212                  * is receiving P2P peers found during find phase and doing
2213                  * action frame handshake.
2214                  */
2215                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2216
2217                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2218                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2219                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2220                 priv->bss_started = 0;
2221                 priv->bss_num = 0;
2222
2223                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2224                         wdev = ERR_PTR(-EFAULT);
2225                         goto done;
2226                 }
2227
2228                 break;
2229         default:
2230                 wiphy_err(wiphy, "type not supported\n");
2231                 return ERR_PTR(-EINVAL);
2232         }
2233
2234         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2235                                ether_setup, IEEE80211_NUM_ACS, 1);
2236         if (!dev) {
2237                 wiphy_err(wiphy, "no memory available for netdevice\n");
2238                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2239                 wdev = ERR_PTR(-ENOMEM);
2240                 goto done;
2241         }
2242
2243         mwifiex_init_priv_params(priv, dev);
2244         priv->netdev = dev;
2245
2246         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2247         if (adapter->is_hw_11ac_capable)
2248                 mwifiex_setup_vht_caps(
2249                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2250
2251         if (adapter->config_bands & BAND_A)
2252                 mwifiex_setup_ht_caps(
2253                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2254
2255         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2256                 mwifiex_setup_vht_caps(
2257                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2258
2259         dev_net_set(dev, wiphy_net(wiphy));
2260         dev->ieee80211_ptr = priv->wdev;
2261         dev->ieee80211_ptr->iftype = priv->bss_mode;
2262         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2263         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2264
2265         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2266         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2267         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2268         dev->ethtool_ops = &mwifiex_ethtool_ops;
2269
2270         mdev_priv = netdev_priv(dev);
2271         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2272
2273         SET_NETDEV_DEV(dev, adapter->dev);
2274
2275         /* Register network device */
2276         if (register_netdevice(dev)) {
2277                 wiphy_err(wiphy, "cannot register virtual network device\n");
2278                 free_netdev(dev);
2279                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2280                 priv->netdev = NULL;
2281                 wdev = ERR_PTR(-EFAULT);
2282                 goto done;
2283         }
2284
2285         sema_init(&priv->async_sem, 1);
2286
2287         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2288
2289 #ifdef CONFIG_DEBUG_FS
2290         mwifiex_dev_debugfs_init(priv);
2291 #endif
2292
2293 done:
2294         if (IS_ERR(wdev)) {
2295                 kfree(priv->wdev);
2296                 priv->wdev = NULL;
2297         }
2298
2299         return wdev;
2300 }
2301 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2302
2303 /*
2304  * del_virtual_intf: remove the virtual interface determined by dev
2305  */
2306 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2307 {
2308         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2309
2310 #ifdef CONFIG_DEBUG_FS
2311         mwifiex_dev_debugfs_remove(priv);
2312 #endif
2313
2314         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2315
2316         if (netif_carrier_ok(priv->netdev))
2317                 netif_carrier_off(priv->netdev);
2318
2319         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2320                 unregister_netdevice(wdev->netdev);
2321
2322         /* Clear the priv in adapter */
2323         priv->netdev->ieee80211_ptr = NULL;
2324         priv->netdev = NULL;
2325         kfree(wdev);
2326         priv->wdev = NULL;
2327
2328         priv->media_connected = false;
2329
2330         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2331
2332         return 0;
2333 }
2334 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2335
2336 static bool
2337 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2338                              u8 max_byte_seq)
2339 {
2340         int j, k, valid_byte_cnt = 0;
2341         bool dont_care_byte = false;
2342
2343         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2344                 for (k = 0; k < 8; k++) {
2345                         if (pat->mask[j] & 1 << k) {
2346                                 memcpy(byte_seq + valid_byte_cnt,
2347                                        &pat->pattern[j * 8 + k], 1);
2348                                 valid_byte_cnt++;
2349                                 if (dont_care_byte)
2350                                         return false;
2351                         } else {
2352                                 if (valid_byte_cnt)
2353                                         dont_care_byte = true;
2354                         }
2355
2356                         if (valid_byte_cnt > max_byte_seq)
2357                                 return false;
2358                 }
2359         }
2360
2361         byte_seq[max_byte_seq] = valid_byte_cnt;
2362
2363         return true;
2364 }
2365
2366 #ifdef CONFIG_PM
2367 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2368                                     struct cfg80211_wowlan *wowlan)
2369 {
2370         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2371         struct mwifiex_ds_mef_cfg mef_cfg;
2372         struct mwifiex_mef_entry *mef_entry;
2373         int i, filt_num = 0, ret;
2374         bool first_pat = true;
2375         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2376         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2377         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2378         struct mwifiex_private *priv =
2379                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2380
2381         if (!wowlan) {
2382                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2383                 return 0;
2384         }
2385
2386         if (!priv->media_connected) {
2387                 dev_warn(adapter->dev,
2388                          "Can not configure WOWLAN in disconnected state\n");
2389                 return 0;
2390         }
2391
2392         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2393         if (!mef_entry)
2394                 return -ENOMEM;
2395
2396         memset(&mef_cfg, 0, sizeof(mef_cfg));
2397         mef_cfg.num_entries = 1;
2398         mef_cfg.mef_entry = mef_entry;
2399         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2400         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2401
2402         for (i = 0; i < wowlan->n_patterns; i++) {
2403                 memset(byte_seq, 0, sizeof(byte_seq));
2404                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2405                                                   byte_seq,
2406                                                   MWIFIEX_MEF_MAX_BYTESEQ)) {
2407                         wiphy_err(wiphy, "Pattern not supported\n");
2408                         kfree(mef_entry);
2409                         return -EOPNOTSUPP;
2410                 }
2411
2412                 if (!wowlan->patterns[i].pkt_offset) {
2413                         if (!(byte_seq[0] & 0x01) &&
2414                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2415                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2416                                 continue;
2417                         } else if (is_broadcast_ether_addr(byte_seq)) {
2418                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2419                                 continue;
2420                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2421                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2422                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2423                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2424                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2425                                 continue;
2426                         }
2427                 }
2428
2429                 mef_entry->filter[filt_num].repeat = 1;
2430                 mef_entry->filter[filt_num].offset =
2431                                                 wowlan->patterns[i].pkt_offset;
2432                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2433                        sizeof(byte_seq));
2434                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2435
2436                 if (first_pat)
2437                         first_pat = false;
2438                 else
2439                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2440
2441                 filt_num++;
2442         }
2443
2444         if (wowlan->magic_pkt) {
2445                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2446                 mef_entry->filter[filt_num].repeat = 16;
2447                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2448                        ETH_ALEN);
2449                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2450                                                                 ETH_ALEN;
2451                 mef_entry->filter[filt_num].offset = 28;
2452                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2453                 if (filt_num)
2454                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2455         }
2456
2457         if (!mef_cfg.criteria)
2458                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2459                                    MWIFIEX_CRITERIA_UNICAST |
2460                                    MWIFIEX_CRITERIA_MULTICAST;
2461
2462         ret =  mwifiex_send_cmd_sync(priv, HostCmd_CMD_MEF_CFG,
2463                                      HostCmd_ACT_GEN_SET, 0,
2464                                      &mef_cfg);
2465
2466         kfree(mef_entry);
2467         return ret;
2468 }
2469
2470 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2471 {
2472         return 0;
2473 }
2474
2475 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2476                                        bool enabled)
2477 {
2478         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2479
2480         device_set_wakeup_enable(adapter->dev, enabled);
2481 }
2482 #endif
2483
2484 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2485 {
2486         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2487         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2488         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2489
2490         if ((byte_seq[0] & 0x01) &&
2491             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2492                 return PACKET_TYPE_UNICAST;
2493         else if (!memcmp(byte_seq, bc_mac, 4))
2494                 return PACKET_TYPE_BROADCAST;
2495         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2496                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2497                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2498                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2499                 return PACKET_TYPE_MULTICAST;
2500
2501         return 0;
2502 }
2503
2504 static int
2505 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2506                                 struct cfg80211_coalesce_rules *crule,
2507                                 struct mwifiex_coalesce_rule *mrule)
2508 {
2509         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2510         struct filt_field_param *param;
2511         int i;
2512
2513         mrule->max_coalescing_delay = crule->delay;
2514
2515         param = mrule->params;
2516
2517         for (i = 0; i < crule->n_patterns; i++) {
2518                 memset(byte_seq, 0, sizeof(byte_seq));
2519                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2520                                                   byte_seq,
2521                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2522                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2523                         return -EOPNOTSUPP;
2524                 }
2525
2526                 if (!crule->patterns[i].pkt_offset) {
2527                         u8 pkt_type;
2528
2529                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2530                         if (pkt_type && mrule->pkt_type) {
2531                                 dev_err(priv->adapter->dev,
2532                                         "Multiple packet types not allowed\n");
2533                                 return -EOPNOTSUPP;
2534                         } else if (pkt_type) {
2535                                 mrule->pkt_type = pkt_type;
2536                                 continue;
2537                         }
2538                 }
2539
2540                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2541                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2542                 else
2543                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
2544
2545                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2546                 memcpy(param->operand_byte_stream, byte_seq,
2547                        param->operand_len);
2548                 param->offset = crule->patterns[i].pkt_offset;
2549                 param++;
2550
2551                 mrule->num_of_fields++;
2552         }
2553
2554         if (!mrule->pkt_type) {
2555                 dev_err(priv->adapter->dev,
2556                         "Packet type can not be determined\n");
2557                 return -EOPNOTSUPP;
2558         }
2559
2560         return 0;
2561 }
2562
2563 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2564                                          struct cfg80211_coalesce *coalesce)
2565 {
2566         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2567         int i, ret;
2568         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2569         struct mwifiex_private *priv =
2570                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2571
2572         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2573         if (!coalesce) {
2574                 dev_dbg(adapter->dev,
2575                         "Disable coalesce and reset all previous rules\n");
2576                 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_COALESCE_CFG,
2577                                              HostCmd_ACT_GEN_SET, 0,
2578                                              &coalesce_cfg);
2579         }
2580
2581         coalesce_cfg.num_of_rules = coalesce->n_rules;
2582         for (i = 0; i < coalesce->n_rules; i++) {
2583                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2584                                                       &coalesce_cfg.rule[i]);
2585                 if (ret) {
2586                         dev_err(priv->adapter->dev,
2587                                 "Recheck the patterns provided for rule %d\n",
2588                                 i + 1);
2589                         return ret;
2590                 }
2591         }
2592
2593         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_COALESCE_CFG,
2594                                      HostCmd_ACT_GEN_SET, 0, &coalesce_cfg);
2595 }
2596
2597 /* cfg80211 ops handler for tdls_mgmt.
2598  * Function prepares TDLS action frame packets and forwards them to FW
2599  */
2600 static int
2601 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2602                            u8 *peer, u8 action_code, u8 dialog_token,
2603                            u16 status_code, const u8 *extra_ies,
2604                            size_t extra_ies_len)
2605 {
2606         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2607         int ret;
2608
2609         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2610                 return -ENOTSUPP;
2611
2612         /* make sure we are in station mode and connected */
2613         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2614                 return -ENOTSUPP;
2615
2616         switch (action_code) {
2617         case WLAN_TDLS_SETUP_REQUEST:
2618                 dev_dbg(priv->adapter->dev,
2619                         "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2620                          status_code);
2621                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2622                                                    dialog_token, status_code,
2623                                                    extra_ies, extra_ies_len);
2624                 break;
2625         case WLAN_TDLS_SETUP_RESPONSE:
2626                 dev_dbg(priv->adapter->dev,
2627                         "Send TDLS Setup Response to %pM status_code=%d\n",
2628                         peer, status_code);
2629                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2630                                                    dialog_token, status_code,
2631                                                    extra_ies, extra_ies_len);
2632                 break;
2633         case WLAN_TDLS_SETUP_CONFIRM:
2634                 dev_dbg(priv->adapter->dev,
2635                         "Send TDLS Confirm to %pM status_code=%d\n", peer,
2636                         status_code);
2637                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2638                                                    dialog_token, status_code,
2639                                                    extra_ies, extra_ies_len);
2640                 break;
2641         case WLAN_TDLS_TEARDOWN:
2642                 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2643                         peer);
2644                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2645                                                    dialog_token, status_code,
2646                                                    extra_ies, extra_ies_len);
2647                 break;
2648         case WLAN_TDLS_DISCOVERY_REQUEST:
2649                 dev_dbg(priv->adapter->dev,
2650                         "Send TDLS Discovery Request to %pM\n", peer);
2651                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2652                                                    dialog_token, status_code,
2653                                                    extra_ies, extra_ies_len);
2654                 break;
2655         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2656                 dev_dbg(priv->adapter->dev,
2657                         "Send TDLS Discovery Response to %pM\n", peer);
2658                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2659                                                    dialog_token, status_code,
2660                                                    extra_ies, extra_ies_len);
2661                 break;
2662         default:
2663                 dev_warn(priv->adapter->dev,
2664                          "Unknown TDLS mgmt/action frame %pM\n", peer);
2665                 ret = -EINVAL;
2666                 break;
2667         }
2668
2669         return ret;
2670 }
2671
2672 /* station cfg80211 operations */
2673 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2674         .add_virtual_intf = mwifiex_add_virtual_intf,
2675         .del_virtual_intf = mwifiex_del_virtual_intf,
2676         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2677         .scan = mwifiex_cfg80211_scan,
2678         .connect = mwifiex_cfg80211_connect,
2679         .disconnect = mwifiex_cfg80211_disconnect,
2680         .get_station = mwifiex_cfg80211_get_station,
2681         .dump_station = mwifiex_cfg80211_dump_station,
2682         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2683         .join_ibss = mwifiex_cfg80211_join_ibss,
2684         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2685         .add_key = mwifiex_cfg80211_add_key,
2686         .del_key = mwifiex_cfg80211_del_key,
2687         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2688         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2689         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2690         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2691         .set_default_key = mwifiex_cfg80211_set_default_key,
2692         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2693         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2694         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2695         .start_ap = mwifiex_cfg80211_start_ap,
2696         .stop_ap = mwifiex_cfg80211_stop_ap,
2697         .change_beacon = mwifiex_cfg80211_change_beacon,
2698         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2699         .set_antenna = mwifiex_cfg80211_set_antenna,
2700         .del_station = mwifiex_cfg80211_del_station,
2701 #ifdef CONFIG_PM
2702         .suspend = mwifiex_cfg80211_suspend,
2703         .resume = mwifiex_cfg80211_resume,
2704         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2705 #endif
2706         .set_coalesce = mwifiex_cfg80211_set_coalesce,
2707         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2708 };
2709
2710 #ifdef CONFIG_PM
2711 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2712         .flags = WIPHY_WOWLAN_MAGIC_PKT,
2713         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2714         .pattern_min_len = 1,
2715         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2716         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2717 };
2718 #endif
2719
2720 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2721 {
2722         if (!alpha2 || strlen(alpha2) != 2)
2723                 return false;
2724
2725         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2726                 return true;
2727
2728         return false;
2729 }
2730
2731 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2732         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2733         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2734         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2735         .pattern_min_len = 1,
2736         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2737         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2738 };
2739
2740 /*
2741  * This function registers the device with CFG802.11 subsystem.
2742  *
2743  * The function creates the wireless device/wiphy, populates it with
2744  * default parameters and handler function pointers, and finally
2745  * registers the device.
2746  */
2747
2748 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2749 {
2750         int ret;
2751         void *wdev_priv;
2752         struct wiphy *wiphy;
2753         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2754         u8 *country_code;
2755         u32 thr, retry;
2756
2757         /* create a new wiphy for use with cfg80211 */
2758         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2759                           sizeof(struct mwifiex_adapter *));
2760         if (!wiphy) {
2761                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2762                 return -ENOMEM;
2763         }
2764         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2765         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2766         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2767         wiphy->max_remain_on_channel_duration = 5000;
2768         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2769                                  BIT(NL80211_IFTYPE_ADHOC) |
2770                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2771                                  BIT(NL80211_IFTYPE_P2P_GO) |
2772                                  BIT(NL80211_IFTYPE_AP);
2773
2774         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2775         if (adapter->config_bands & BAND_A)
2776                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2777         else
2778                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2779
2780         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2781         wiphy->n_iface_combinations = 1;
2782
2783         /* Initialize cipher suits */
2784         wiphy->cipher_suites = mwifiex_cipher_suites;
2785         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2786
2787         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2788         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2789         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2790                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2791                         WIPHY_FLAG_AP_UAPSD |
2792                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2793
2794         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2795                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2796                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2797
2798         wiphy->regulatory_flags |=
2799                         REGULATORY_CUSTOM_REG |
2800                         REGULATORY_STRICT_REG;
2801
2802         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2803
2804 #ifdef CONFIG_PM
2805         wiphy->wowlan = &mwifiex_wowlan_support;
2806 #endif
2807
2808         wiphy->coalesce = &mwifiex_coalesce_support;
2809
2810         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2811                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2812                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2813
2814         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2815         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2816
2817         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2818                            NL80211_FEATURE_INACTIVITY_TIMER |
2819                            NL80211_FEATURE_LOW_PRIORITY_SCAN;
2820
2821         /* Reserve space for mwifiex specific private data for BSS */
2822         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2823
2824         wiphy->reg_notifier = mwifiex_reg_notifier;
2825
2826         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2827         wdev_priv = wiphy_priv(wiphy);
2828         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2829
2830         set_wiphy_dev(wiphy, priv->adapter->dev);
2831
2832         ret = wiphy_register(wiphy);
2833         if (ret < 0) {
2834                 dev_err(adapter->dev,
2835                         "%s: wiphy_register failed: %d\n", __func__, ret);
2836                 wiphy_free(wiphy);
2837                 return ret;
2838         }
2839
2840         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
2841                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
2842                 regulatory_hint(wiphy, reg_alpha2);
2843         } else {
2844                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
2845                 if (country_code)
2846                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
2847                                    country_code);
2848         }
2849
2850         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2851                               HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr);
2852         wiphy->frag_threshold = thr;
2853         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2854                               HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr);
2855         wiphy->rts_threshold = thr;
2856         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2857                               HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry);
2858         wiphy->retry_short = (u8) retry;
2859         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2860                               HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry);
2861         wiphy->retry_long = (u8) retry;
2862
2863         adapter->wiphy = wiphy;
2864         return ret;
2865 }