drivers/net/wireless/mwifiex/cfg80211.c

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