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 const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  24         {
  25                 .max = 1, .types = BIT(NL80211_IFTYPE_STATION),
  26         },
  27         {
  28                 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
  29         },
  30 };
  31
  32 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
  33         .limits = mwifiex_ap_sta_limits,
  34         .num_different_channels = 1,
  35         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  36         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  37         .beacon_int_infra_match = true,
  38 };
  39
  40 /*
  41  * This function maps the nl802.11 channel type into driver channel type.
  42  *
  43  * The mapping is as follows -
  44  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  45  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  46  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  47  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  48  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  49  */
  50 static u8
  51 mwifiex_cfg80211_channel_type_to_sec_chan_offset(enum nl80211_channel_type
  52                                                  channel_type)
  53 {
  54         switch (channel_type) {
  55         case NL80211_CHAN_NO_HT:
  56         case NL80211_CHAN_HT20:
  57                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  58         case NL80211_CHAN_HT40PLUS:
  59                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  60         case NL80211_CHAN_HT40MINUS:
  61                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  62         default:
  63                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  64         }
  65 }
  66
  67 /*
  68  * This function checks whether WEP is set.
  69  */
  70 static int
  71 mwifiex_is_alg_wep(u32 cipher)
  72 {
  73         switch (cipher) {
  74         case WLAN_CIPHER_SUITE_WEP40:
  75         case WLAN_CIPHER_SUITE_WEP104:
  76                 return 1;
  77         default:
  78                 break;
  79         }
  80
  81         return 0;
  82 }
  83
  84 /*
  85  * This function retrieves the private structure from kernel wiphy structure.
  86  */
  87 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
  88 {
  89         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
  90 }
  91
  92 /*
  93  * CFG802.11 operation handler to delete a network key.
  94  */
  95 static int
  96 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
  97                          u8 key_index, bool pairwise, const u8 *mac_addr)
  98 {
  99         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 100         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 101         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 102
 103         if (mwifiex_set_encode(priv, NULL, 0, key_index, peer_mac, 1)) {
 104                 wiphy_err(wiphy, "deleting the crypto keys\n");
 105                 return -EFAULT;
 106         }
 107
 108         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 109         return 0;
 110 }
 111
 112 /*
 113  * CFG802.11 operation handler to set Tx power.
 114  */
 115 static int
 116 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 117                               enum nl80211_tx_power_setting type,
 118                               int mbm)
 119 {
 120         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 121         struct mwifiex_private *priv;
 122         struct mwifiex_power_cfg power_cfg;
 123         int dbm = MBM_TO_DBM(mbm);
 124
 125         if (type == NL80211_TX_POWER_FIXED) {
 126                 power_cfg.is_power_auto = 0;
 127                 power_cfg.power_level = dbm;
 128         } else {
 129                 power_cfg.is_power_auto = 1;
 130         }
 131
 132         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 133
 134         return mwifiex_set_tx_power(priv, &power_cfg);
 135 }
 136
 137 /*
 138  * CFG802.11 operation handler to set Power Save option.
 139  *
 140  * The timeout value, if provided, is currently ignored.
 141  */
 142 static int
 143 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 144                                 struct net_device *dev,
 145                                 bool enabled, int timeout)
 146 {
 147         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 148         u32 ps_mode;
 149
 150         if (timeout)
 151                 wiphy_dbg(wiphy,
 152                           "info: ignore timeout value for IEEE Power Save\n");
 153
 154         ps_mode = enabled;
 155
 156         return mwifiex_drv_set_power(priv, &ps_mode);
 157 }
 158
 159 /*
 160  * CFG802.11 operation handler to set the default network key.
 161  */
 162 static int
 163 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 164                                  u8 key_index, bool unicast,
 165                                  bool multicast)
 166 {
 167         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 168
 169         /* Return if WEP key not configured */
 170         if (!priv->sec_info.wep_enabled)
 171                 return 0;
 172
 173         if (mwifiex_set_encode(priv, NULL, 0, key_index, NULL, 0)) {
 174                 wiphy_err(wiphy, "set default Tx key index\n");
 175                 return -EFAULT;
 176         }
 177
 178         return 0;
 179 }
 180
 181 /*
 182  * CFG802.11 operation handler to add a network key.
 183  */
 184 static int
 185 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 186                          u8 key_index, bool pairwise, const u8 *mac_addr,
 187                          struct key_params *params)
 188 {
 189         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 190         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 191         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 192
 193         if (mwifiex_set_encode(priv, params->key, params->key_len,
 194                                key_index, peer_mac, 0)) {
 195                 wiphy_err(wiphy, "crypto keys added\n");
 196                 return -EFAULT;
 197         }
 198
 199         return 0;
 200 }
 201
 202 /*
 203  * This function sends domain information to the firmware.
 204  *
 205  * The following information are passed to the firmware -
 206  *      - Country codes
 207  *      - Sub bands (first channel, number of channels, maximum Tx power)
 208  */
 209 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 210 {
 211         u8 no_of_triplet = 0;
 212         struct ieee80211_country_ie_triplet *t;
 213         u8 no_of_parsed_chan = 0;
 214         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 215         u8 i, flag = 0;
 216         enum ieee80211_band band;
 217         struct ieee80211_supported_band *sband;
 218         struct ieee80211_channel *ch;
 219         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 220         struct mwifiex_private *priv;
 221         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 222
 223         /* Set country code */
 224         domain_info->country_code[0] = adapter->country_code[0];
 225         domain_info->country_code[1] = adapter->country_code[1];
 226         domain_info->country_code[2] = ' ';
 227
 228         band = mwifiex_band_to_radio_type(adapter->config_bands);
 229         if (!wiphy->bands[band]) {
 230                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 231                 return -1;
 232         }
 233
 234         sband = wiphy->bands[band];
 235
 236         for (i = 0; i < sband->n_channels ; i++) {
 237                 ch = &sband->channels[i];
 238                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 239                         continue;
 240
 241                 if (!flag) {
 242                         flag = 1;
 243                         first_chan = (u32) ch->hw_value;
 244                         next_chan = first_chan;
 245                         max_pwr = ch->max_power;
 246                         no_of_parsed_chan = 1;
 247                         continue;
 248                 }
 249
 250                 if (ch->hw_value == next_chan + 1 &&
 251                     ch->max_power == max_pwr) {
 252                         next_chan++;
 253                         no_of_parsed_chan++;
 254                 } else {
 255                         t = &domain_info->triplet[no_of_triplet];
 256                         t->chans.first_channel = first_chan;
 257                         t->chans.num_channels = no_of_parsed_chan;
 258                         t->chans.max_power = max_pwr;
 259                         no_of_triplet++;
 260                         first_chan = (u32) ch->hw_value;
 261                         next_chan = first_chan;
 262                         max_pwr = ch->max_power;
 263                         no_of_parsed_chan = 1;
 264                 }
 265         }
 266
 267         if (flag) {
 268                 t = &domain_info->triplet[no_of_triplet];
 269                 t->chans.first_channel = first_chan;
 270                 t->chans.num_channels = no_of_parsed_chan;
 271                 t->chans.max_power = max_pwr;
 272                 no_of_triplet++;
 273         }
 274
 275         domain_info->no_of_triplet = no_of_triplet;
 276
 277         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 278
 279         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 280                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 281                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 282                 return -1;
 283         }
 284
 285         return 0;
 286 }
 287
 288 /*
 289  * CFG802.11 regulatory domain callback function.
 290  *
 291  * This function is called when the regulatory domain is changed due to the
 292  * following reasons -
 293  *      - Set by driver
 294  *      - Set by system core
 295  *      - Set by user
 296  *      - Set bt Country IE
 297  */
 298 static int mwifiex_reg_notifier(struct wiphy *wiphy,
 299                                 struct regulatory_request *request)
 300 {
 301         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 302
 303         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 304                   request->alpha2[0], request->alpha2[1]);
 305
 306         memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
 307
 308         switch (request->initiator) {
 309         case NL80211_REGDOM_SET_BY_DRIVER:
 310         case NL80211_REGDOM_SET_BY_CORE:
 311         case NL80211_REGDOM_SET_BY_USER:
 312                 break;
 313                 /* Todo: apply driver specific changes in channel flags based
 314                    on the request initiator if necessary. */
 315         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 316                 break;
 317         }
 318         mwifiex_send_domain_info_cmd_fw(wiphy);
 319
 320         return 0;
 321 }
 322
 323 /*
 324  * This function sets the RF channel.
 325  *
 326  * This function creates multiple IOCTL requests, populates them accordingly
 327  * and issues them to set the band/channel and frequency.
 328  */
 329 static int
 330 mwifiex_set_rf_channel(struct mwifiex_private *priv,
 331                        struct ieee80211_channel *chan,
 332                        enum nl80211_channel_type channel_type)
 333 {
 334         struct mwifiex_chan_freq_power cfp;
 335         u32 config_bands = 0;
 336         struct wiphy *wiphy = priv->wdev->wiphy;
 337         struct mwifiex_adapter *adapter = priv->adapter;
 338
 339         if (chan) {
 340                 /* Set appropriate bands */
 341                 if (chan->band == IEEE80211_BAND_2GHZ) {
 342                         if (channel_type == NL80211_CHAN_NO_HT)
 343                                 if (priv->adapter->config_bands == BAND_B ||
 344                                     priv->adapter->config_bands == BAND_G)
 345                                         config_bands =
 346                                                 priv->adapter->config_bands;
 347                                 else
 348                                         config_bands = BAND_B | BAND_G;
 349                         else
 350                                 config_bands = BAND_B | BAND_G | BAND_GN;
 351                 } else {
 352                         if (channel_type == NL80211_CHAN_NO_HT)
 353                                 config_bands = BAND_A;
 354                         else
 355                                 config_bands = BAND_AN | BAND_A;
 356                 }
 357
 358                 if (!((config_bands | adapter->fw_bands) &
 359                                                 ~adapter->fw_bands)) {
 360                         adapter->config_bands = config_bands;
 361                         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 362                                 adapter->adhoc_start_band = config_bands;
 363                                 if ((config_bands & BAND_GN) ||
 364                                     (config_bands & BAND_AN))
 365                                         adapter->adhoc_11n_enabled = true;
 366                                 else
 367                                         adapter->adhoc_11n_enabled = false;
 368                         }
 369                 }
 370                 adapter->sec_chan_offset =
 371                         mwifiex_cfg80211_channel_type_to_sec_chan_offset
 372                         (channel_type);
 373                 adapter->channel_type = channel_type;
 374
 375                 mwifiex_send_domain_info_cmd_fw(wiphy);
 376         }
 377
 378         wiphy_dbg(wiphy, "info: setting band %d, chan offset %d, mode %d\n",
 379                   config_bands, adapter->sec_chan_offset, priv->bss_mode);
 380         if (!chan)
 381                 return 0;
 382
 383         memset(&cfp, 0, sizeof(cfp));
 384         cfp.freq = chan->center_freq;
 385         cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
 386
 387         if (mwifiex_bss_set_channel(priv, &cfp))
 388                 return -EFAULT;
 389
 390         if (priv->bss_type == MWIFIEX_BSS_TYPE_STA)
 391                 return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
 392         else
 393                 return mwifiex_uap_set_channel(priv, cfp.channel);
 394 }
 395
 396 /*
 397  * This function sets the fragmentation threshold.
 398  *
 399  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 400  * and MWIFIEX_FRAG_MAX_VALUE.
 401  */
 402 static int
 403 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 404 {
 405         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 406             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 407                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 408
 409         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 410                                      HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 411                                      &frag_thr);
 412 }
 413
 414 /*
 415  * This function sets the RTS threshold.
 416
 417  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 418  * and MWIFIEX_RTS_MAX_VALUE.
 419  */
 420 static int
 421 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 422 {
 423         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 424                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 425
 426         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 427                                     HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 428                                     &rts_thr);
 429 }
 430
 431 /*
 432  * CFG802.11 operation handler to set wiphy parameters.
 433  *
 434  * This function can be used to set the RTS threshold and the
 435  * Fragmentation threshold of the driver.
 436  */
 437 static int
 438 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 439 {
 440         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 441         struct mwifiex_private *priv;
 442         struct mwifiex_uap_bss_param *bss_cfg;
 443         int ret, bss_started, i;
 444
 445         for (i = 0; i < adapter->priv_num; i++) {
 446                 priv = adapter->priv[i];
 447
 448                 switch (priv->bss_role) {
 449                 case MWIFIEX_BSS_ROLE_UAP:
 450                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 451                                           GFP_KERNEL);
 452                         if (!bss_cfg)
 453                                 return -ENOMEM;
 454
 455                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 456
 457                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 458                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 459                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 460                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 461                         if (changed & WIPHY_PARAM_RETRY_LONG)
 462                                 bss_cfg->retry_limit = wiphy->retry_long;
 463
 464                         bss_started = priv->bss_started;
 465
 466                         ret = mwifiex_send_cmd_sync(priv,
 467                                                     HostCmd_CMD_UAP_BSS_STOP,
 468                                                     HostCmd_ACT_GEN_SET, 0,
 469                                                     NULL);
 470                         if (ret) {
 471                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 472                                 kfree(bss_cfg);
 473                                 return ret;
 474                         }
 475
 476                         ret = mwifiex_send_cmd_async(priv,
 477                                                      HostCmd_CMD_UAP_SYS_CONFIG,
 478                                                      HostCmd_ACT_GEN_SET,
 479                                                      UAP_BSS_PARAMS_I, bss_cfg);
 480
 481                         kfree(bss_cfg);
 482
 483                         if (ret) {
 484                                 wiphy_err(wiphy, "Failed to set bss config\n");
 485                                 return ret;
 486                         }
 487
 488                         if (!bss_started)
 489                                 break;
 490
 491                         ret = mwifiex_send_cmd_async(priv,
 492                                                      HostCmd_CMD_UAP_BSS_START,
 493                                                      HostCmd_ACT_GEN_SET, 0,
 494                                                      NULL);
 495                         if (ret) {
 496                                 wiphy_err(wiphy, "Failed to start BSS\n");
 497                                 return ret;
 498                         }
 499
 500                         break;
 501                 case MWIFIEX_BSS_ROLE_STA:
 502                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 503                                 ret = mwifiex_set_rts(priv,
 504                                                       wiphy->rts_threshold);
 505                                 if (ret)
 506                                         return ret;
 507                         }
 508                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 509                                 ret = mwifiex_set_frag(priv,
 510                                                        wiphy->frag_threshold);
 511                                 if (ret)
 512                                         return ret;
 513                         }
 514                         break;
 515                 }
 516         }
 517
 518         return 0;
 519 }
 520
 521 /*
 522  * CFG802.11 operation handler to change interface type.
 523  */
 524 static int
 525 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 526                                      struct net_device *dev,
 527                                      enum nl80211_iftype type, u32 *flags,
 528                                      struct vif_params *params)
 529 {
 530         int ret;
 531         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 532
 533         switch (dev->ieee80211_ptr->iftype) {
 534         case NL80211_IFTYPE_ADHOC:
 535                 switch (type) {
 536                 case NL80211_IFTYPE_STATION:
 537                         break;
 538                 case NL80211_IFTYPE_UNSPECIFIED:
 539                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 540                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 541                         return 0;
 542                 case NL80211_IFTYPE_AP:
 543                 default:
 544                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 545                                   dev->name, type);
 546                         return -EOPNOTSUPP;
 547                 }
 548                 break;
 549         case NL80211_IFTYPE_STATION:
 550                 switch (type) {
 551                 case NL80211_IFTYPE_ADHOC:
 552                         break;
 553                 case NL80211_IFTYPE_UNSPECIFIED:
 554                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 555                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 556                         return 0;
 557                 case NL80211_IFTYPE_AP:
 558                 default:
 559                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 560                                   dev->name, type);
 561                         return -EOPNOTSUPP;
 562                 }
 563                 break;
 564         case NL80211_IFTYPE_AP:
 565                 switch (type) {
 566                 case NL80211_IFTYPE_UNSPECIFIED:
 567                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 568                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 569                         return 0;
 570                 case NL80211_IFTYPE_ADHOC:
 571                 case NL80211_IFTYPE_STATION:
 572                 default:
 573                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 574                                   dev->name, type);
 575                         return -EOPNOTSUPP;
 576                 }
 577                 break;
 578         default:
 579                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 580                           dev->name, dev->ieee80211_ptr->iftype);
 581                 return -EOPNOTSUPP;
 582         }
 583
 584         dev->ieee80211_ptr->iftype = type;
 585         priv->bss_mode = type;
 586         mwifiex_deauthenticate(priv, NULL);
 587
 588         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 589
 590         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
 591                                     HostCmd_ACT_GEN_SET, 0, NULL);
 592
 593         return ret;
 594 }
 595
 596 /*
 597  * This function dumps the station information on a buffer.
 598  *
 599  * The following information are shown -
 600  *      - Total bytes transmitted
 601  *      - Total bytes received
 602  *      - Total packets transmitted
 603  *      - Total packets received
 604  *      - Signal quality level
 605  *      - Transmission rate
 606  */
 607 static int
 608 mwifiex_dump_station_info(struct mwifiex_private *priv,
 609                           struct station_info *sinfo)
 610 {
 611         struct mwifiex_rate_cfg rate;
 612
 613         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 614                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 615                         STATION_INFO_TX_BITRATE |
 616                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 617
 618         /* Get signal information from the firmware */
 619         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 620                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 621                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 622                 return -EFAULT;
 623         }
 624
 625         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 626                 dev_err(priv->adapter->dev, "getting data rate\n");
 627                 return -EFAULT;
 628         }
 629
 630         /* Get DTIM period information from firmware */
 631         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 632                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 633                               &priv->dtim_period);
 634
 635         /*
 636          * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
 637          * MCS index values for us are 0 to 7.
 638          */
 639         if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 8)) {
 640                 sinfo->txrate.mcs = priv->tx_rate;
 641                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 642                 /* 40MHz rate */
 643                 if (priv->tx_htinfo & BIT(1))
 644                         sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 645                 /* SGI enabled */
 646                 if (priv->tx_htinfo & BIT(2))
 647                         sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 648         }
 649
 650         sinfo->signal_avg = priv->bcn_rssi_avg;
 651         sinfo->rx_bytes = priv->stats.rx_bytes;
 652         sinfo->tx_bytes = priv->stats.tx_bytes;
 653         sinfo->rx_packets = priv->stats.rx_packets;
 654         sinfo->tx_packets = priv->stats.tx_packets;
 655         sinfo->signal = priv->bcn_rssi_avg;
 656         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 657         sinfo->txrate.legacy = rate.rate * 5;
 658
 659         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 660                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 661                 sinfo->bss_param.flags = 0;
 662                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 663                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 664                         sinfo->bss_param.flags |=
 665                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 666                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 667                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 668                         sinfo->bss_param.flags |=
 669                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 670                 sinfo->bss_param.dtim_period = priv->dtim_period;
 671                 sinfo->bss_param.beacon_interval =
 672                         priv->curr_bss_params.bss_descriptor.beacon_period;
 673         }
 674
 675         return 0;
 676 }
 677
 678 /*
 679  * CFG802.11 operation handler to get station information.
 680  *
 681  * This function only works in connected mode, and dumps the
 682  * requested station information, if available.
 683  */
 684 static int
 685 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 686                              u8 *mac, struct station_info *sinfo)
 687 {
 688         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 689
 690         if (!priv->media_connected)
 691                 return -ENOENT;
 692         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 693                 return -ENOENT;
 694
 695         return mwifiex_dump_station_info(priv, sinfo);
 696 }
 697
 698 /*
 699  * CFG802.11 operation handler to dump station information.
 700  */
 701 static int
 702 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 703                               int idx, u8 *mac, struct station_info *sinfo)
 704 {
 705         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 706
 707         if (!priv->media_connected || idx)
 708                 return -ENOENT;
 709
 710         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 711
 712         return mwifiex_dump_station_info(priv, sinfo);
 713 }
 714
 715 /* Supported rates to be advertised to the cfg80211 */
 716
 717 static struct ieee80211_rate mwifiex_rates[] = {
 718         {.bitrate = 10, .hw_value = 2, },
 719         {.bitrate = 20, .hw_value = 4, },
 720         {.bitrate = 55, .hw_value = 11, },
 721         {.bitrate = 110, .hw_value = 22, },
 722         {.bitrate = 60, .hw_value = 12, },
 723         {.bitrate = 90, .hw_value = 18, },
 724         {.bitrate = 120, .hw_value = 24, },
 725         {.bitrate = 180, .hw_value = 36, },
 726         {.bitrate = 240, .hw_value = 48, },
 727         {.bitrate = 360, .hw_value = 72, },
 728         {.bitrate = 480, .hw_value = 96, },
 729         {.bitrate = 540, .hw_value = 108, },
 730 };
 731
 732 /* Channel definitions to be advertised to cfg80211 */
 733
 734 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
 735         {.center_freq = 2412, .hw_value = 1, },
 736         {.center_freq = 2417, .hw_value = 2, },
 737         {.center_freq = 2422, .hw_value = 3, },
 738         {.center_freq = 2427, .hw_value = 4, },
 739         {.center_freq = 2432, .hw_value = 5, },
 740         {.center_freq = 2437, .hw_value = 6, },
 741         {.center_freq = 2442, .hw_value = 7, },
 742         {.center_freq = 2447, .hw_value = 8, },
 743         {.center_freq = 2452, .hw_value = 9, },
 744         {.center_freq = 2457, .hw_value = 10, },
 745         {.center_freq = 2462, .hw_value = 11, },
 746         {.center_freq = 2467, .hw_value = 12, },
 747         {.center_freq = 2472, .hw_value = 13, },
 748         {.center_freq = 2484, .hw_value = 14, },
 749 };
 750
 751 static struct ieee80211_supported_band mwifiex_band_2ghz = {
 752         .channels = mwifiex_channels_2ghz,
 753         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
 754         .bitrates = mwifiex_rates,
 755         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
 756 };
 757
 758 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
 759         {.center_freq = 5040, .hw_value = 8, },
 760         {.center_freq = 5060, .hw_value = 12, },
 761         {.center_freq = 5080, .hw_value = 16, },
 762         {.center_freq = 5170, .hw_value = 34, },
 763         {.center_freq = 5190, .hw_value = 38, },
 764         {.center_freq = 5210, .hw_value = 42, },
 765         {.center_freq = 5230, .hw_value = 46, },
 766         {.center_freq = 5180, .hw_value = 36, },
 767         {.center_freq = 5200, .hw_value = 40, },
 768         {.center_freq = 5220, .hw_value = 44, },
 769         {.center_freq = 5240, .hw_value = 48, },
 770         {.center_freq = 5260, .hw_value = 52, },
 771         {.center_freq = 5280, .hw_value = 56, },
 772         {.center_freq = 5300, .hw_value = 60, },
 773         {.center_freq = 5320, .hw_value = 64, },
 774         {.center_freq = 5500, .hw_value = 100, },
 775         {.center_freq = 5520, .hw_value = 104, },
 776         {.center_freq = 5540, .hw_value = 108, },
 777         {.center_freq = 5560, .hw_value = 112, },
 778         {.center_freq = 5580, .hw_value = 116, },
 779         {.center_freq = 5600, .hw_value = 120, },
 780         {.center_freq = 5620, .hw_value = 124, },
 781         {.center_freq = 5640, .hw_value = 128, },
 782         {.center_freq = 5660, .hw_value = 132, },
 783         {.center_freq = 5680, .hw_value = 136, },
 784         {.center_freq = 5700, .hw_value = 140, },
 785         {.center_freq = 5745, .hw_value = 149, },
 786         {.center_freq = 5765, .hw_value = 153, },
 787         {.center_freq = 5785, .hw_value = 157, },
 788         {.center_freq = 5805, .hw_value = 161, },
 789         {.center_freq = 5825, .hw_value = 165, },
 790 };
 791
 792 static struct ieee80211_supported_band mwifiex_band_5ghz = {
 793         .channels = mwifiex_channels_5ghz,
 794         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
 795         .bitrates = mwifiex_rates + 4,
 796         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
 797 };
 798
 799
 800 /* Supported crypto cipher suits to be advertised to cfg80211 */
 801
 802 static const u32 mwifiex_cipher_suites[] = {
 803         WLAN_CIPHER_SUITE_WEP40,
 804         WLAN_CIPHER_SUITE_WEP104,
 805         WLAN_CIPHER_SUITE_TKIP,
 806         WLAN_CIPHER_SUITE_CCMP,
 807 };
 808
 809 /*
 810  * CFG802.11 operation handler for setting bit rates.
 811  *
 812  * Function selects legacy bang B/G/BG from corresponding bitrates selection.
 813  * Currently only 2.4GHz band is supported.
 814  */
 815 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
 816                                 struct net_device *dev,
 817                                 const u8 *peer,
 818                                 const struct cfg80211_bitrate_mask *mask)
 819 {
 820         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 821         int index = 0, mode = 0, i;
 822         struct mwifiex_adapter *adapter = priv->adapter;
 823
 824         /* Currently only 2.4GHz is supported */
 825         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
 826                 /*
 827                  * Rates below 6 Mbps in the table are CCK rates; 802.11b
 828                  * and from 6 they are OFDM; 802.11G
 829                  */
 830                 if (mwifiex_rates[i].bitrate == 60) {
 831                         index = 1 << i;
 832                         break;
 833                 }
 834         }
 835
 836         if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
 837                 mode = BAND_B;
 838         } else {
 839                 mode = BAND_G;
 840                 if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
 841                         mode |=  BAND_B;
 842         }
 843
 844         if (!((mode | adapter->fw_bands) & ~adapter->fw_bands)) {
 845                 adapter->config_bands = mode;
 846                 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 847                         adapter->adhoc_start_band = mode;
 848                         adapter->adhoc_11n_enabled = false;
 849                 }
 850         }
 851         adapter->sec_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
 852         adapter->channel_type = NL80211_CHAN_NO_HT;
 853
 854         wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
 855                     (mode & BAND_B) ? "b" : "", (mode & BAND_G) ? "g" : "");
 856
 857         return 0;
 858 }
 859
 860 /*
 861  * CFG802.11 operation handler for connection quality monitoring.
 862  *
 863  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
 864  * events to FW.
 865  */
 866 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
 867                                                 struct net_device *dev,
 868                                                 s32 rssi_thold, u32 rssi_hyst)
 869 {
 870         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 871         struct mwifiex_ds_misc_subsc_evt subsc_evt;
 872
 873         priv->cqm_rssi_thold = rssi_thold;
 874         priv->cqm_rssi_hyst = rssi_hyst;
 875
 876         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
 877         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
 878
 879         /* Subscribe/unsubscribe low and high rssi events */
 880         if (rssi_thold && rssi_hyst) {
 881                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
 882                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
 883                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
 884                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
 885                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
 886                 return mwifiex_send_cmd_sync(priv,
 887                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 888                                              0, 0, &subsc_evt);
 889         } else {
 890                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
 891                 return mwifiex_send_cmd_sync(priv,
 892                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 893                                              0, 0, &subsc_evt);
 894         }
 895
 896         return 0;
 897 }
 898
 899 /* cfg80211 operation handler for stop ap.
 900  * Function stops BSS running at uAP interface.
 901  */
 902 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 903 {
 904         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 905
 906         if (mwifiex_del_mgmt_ies(priv))
 907                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
 908
 909         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
 910                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
 911                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 912                 return -1;
 913         }
 914
 915         return 0;
 916 }
 917
 918 /* cfg80211 operation handler for start_ap.
 919  * Function sets beacon period, DTIM period, SSID and security into
 920  * AP config structure.
 921  * AP is configured with these settings and BSS is started.
 922  */
 923 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
 924                                      struct net_device *dev,
 925                                      struct cfg80211_ap_settings *params)
 926 {
 927         struct mwifiex_uap_bss_param *bss_cfg;
 928         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 929
 930         if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP)
 931                 return -1;
 932         if (mwifiex_set_mgmt_ies(priv, params))
 933                 return -1;
 934
 935         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
 936         if (!bss_cfg)
 937                 return -ENOMEM;
 938
 939         mwifiex_set_sys_config_invalid_data(bss_cfg);
 940
 941         if (params->beacon_interval)
 942                 bss_cfg->beacon_period = params->beacon_interval;
 943         if (params->dtim_period)
 944                 bss_cfg->dtim_period = params->dtim_period;
 945
 946         if (params->ssid && params->ssid_len) {
 947                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
 948                 bss_cfg->ssid.ssid_len = params->ssid_len;
 949         }
 950
 951         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
 952                 kfree(bss_cfg);
 953                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
 954                 return -1;
 955         }
 956
 957         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
 958                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
 959                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 960                 kfree(bss_cfg);
 961                 return -1;
 962         }
 963
 964         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 965                                    HostCmd_ACT_GEN_SET,
 966                                    UAP_BSS_PARAMS_I, bss_cfg)) {
 967                 wiphy_err(wiphy, "Failed to set the SSID\n");
 968                 kfree(bss_cfg);
 969                 return -1;
 970         }
 971
 972         kfree(bss_cfg);
 973
 974         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
 975                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 976                 wiphy_err(wiphy, "Failed to start the BSS\n");
 977                 return -1;
 978         }
 979
 980         return 0;
 981 }
 982
 983 /*
 984  * CFG802.11 operation handler for disconnection request.
 985  *
 986  * This function does not work when there is already a disconnection
 987  * procedure going on.
 988  */
 989 static int
 990 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
 991                             u16 reason_code)
 992 {
 993         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 994
 995         if (mwifiex_deauthenticate(priv, NULL))
 996                 return -EFAULT;
 997
 998         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
 999                 " reason code %d\n", priv->cfg_bssid, reason_code);
1000
1001         memset(priv->cfg_bssid, 0, ETH_ALEN);
1002
1003         return 0;
1004 }
1005
1006 /*
1007  * This function informs the CFG802.11 subsystem of a new IBSS.
1008  *
1009  * The following information are sent to the CFG802.11 subsystem
1010  * to register the new IBSS. If we do not register the new IBSS,
1011  * a kernel panic will result.
1012  *      - SSID
1013  *      - SSID length
1014  *      - BSSID
1015  *      - Channel
1016  */
1017 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1018 {
1019         struct ieee80211_channel *chan;
1020         struct mwifiex_bss_info bss_info;
1021         struct cfg80211_bss *bss;
1022         int ie_len;
1023         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1024         enum ieee80211_band band;
1025
1026         if (mwifiex_get_bss_info(priv, &bss_info))
1027                 return -1;
1028
1029         ie_buf[0] = WLAN_EID_SSID;
1030         ie_buf[1] = bss_info.ssid.ssid_len;
1031
1032         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1033                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1034         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1035
1036         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1037         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1038                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1039                                                        band));
1040
1041         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1042                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1043                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1044         cfg80211_put_bss(bss);
1045         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1046
1047         return 0;
1048 }
1049
1050 /*
1051  * This function connects with a BSS.
1052  *
1053  * This function handles both Infra and Ad-Hoc modes. It also performs
1054  * validity checking on the provided parameters, disconnects from the
1055  * current BSS (if any), sets up the association/scan parameters,
1056  * including security settings, and performs specific SSID scan before
1057  * trying to connect.
1058  *
1059  * For Infra mode, the function returns failure if the specified SSID
1060  * is not found in scan table. However, for Ad-Hoc mode, it can create
1061  * the IBSS if it does not exist. On successful completion in either case,
1062  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1063  */
1064 static int
1065 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1066                        u8 *bssid, int mode, struct ieee80211_channel *channel,
1067                        struct cfg80211_connect_params *sme, bool privacy)
1068 {
1069         struct cfg80211_ssid req_ssid;
1070         int ret, auth_type = 0;
1071         struct cfg80211_bss *bss = NULL;
1072         u8 is_scanning_required = 0;
1073
1074         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1075
1076         req_ssid.ssid_len = ssid_len;
1077         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1078                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1079                 return -EINVAL;
1080         }
1081
1082         memcpy(req_ssid.ssid, ssid, ssid_len);
1083         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1084                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1085                 return -EINVAL;
1086         }
1087
1088         /* disconnect before try to associate */
1089         mwifiex_deauthenticate(priv, NULL);
1090
1091         if (channel)
1092                 ret = mwifiex_set_rf_channel(priv, channel,
1093                                                 priv->adapter->channel_type);
1094
1095         /* As this is new association, clear locally stored
1096          * keys and security related flags */
1097         priv->sec_info.wpa_enabled = false;
1098         priv->sec_info.wpa2_enabled = false;
1099         priv->wep_key_curr_index = 0;
1100         priv->sec_info.encryption_mode = 0;
1101         priv->sec_info.is_authtype_auto = 0;
1102         ret = mwifiex_set_encode(priv, NULL, 0, 0, NULL, 1);
1103
1104         if (mode == NL80211_IFTYPE_ADHOC) {
1105                 /* "privacy" is set only for ad-hoc mode */
1106                 if (privacy) {
1107                         /*
1108                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1109                          * the firmware can find a matching network from the
1110                          * scan. The cfg80211 does not give us the encryption
1111                          * mode at this stage so just setting it to WEP here.
1112                          */
1113                         priv->sec_info.encryption_mode =
1114                                         WLAN_CIPHER_SUITE_WEP104;
1115                         priv->sec_info.authentication_mode =
1116                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1117                 }
1118
1119                 goto done;
1120         }
1121
1122         /* Now handle infra mode. "sme" is valid for infra mode only */
1123         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1124                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1125                 priv->sec_info.is_authtype_auto = 1;
1126         } else {
1127                 auth_type = sme->auth_type;
1128         }
1129
1130         if (sme->crypto.n_ciphers_pairwise) {
1131                 priv->sec_info.encryption_mode =
1132                                                 sme->crypto.ciphers_pairwise[0];
1133                 priv->sec_info.authentication_mode = auth_type;
1134         }
1135
1136         if (sme->crypto.cipher_group) {
1137                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1138                 priv->sec_info.authentication_mode = auth_type;
1139         }
1140         if (sme->ie)
1141                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1142
1143         if (sme->key) {
1144                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1145                         dev_dbg(priv->adapter->dev,
1146                                 "info: setting wep encryption"
1147                                 " with key len %d\n", sme->key_len);
1148                         priv->wep_key_curr_index = sme->key_idx;
1149                         ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
1150                                                  sme->key_idx, NULL, 0);
1151                 }
1152         }
1153 done:
1154         /*
1155          * Scan entries are valid for some time (15 sec). So we can save one
1156          * active scan time if we just try cfg80211_get_bss first. If it fails
1157          * then request scan and cfg80211_get_bss() again for final output.
1158          */
1159         while (1) {
1160                 if (is_scanning_required) {
1161                         /* Do specific SSID scanning */
1162                         if (mwifiex_request_scan(priv, &req_ssid)) {
1163                                 dev_err(priv->adapter->dev, "scan error\n");
1164                                 return -EFAULT;
1165                         }
1166                 }
1167
1168                 /* Find the BSS we want using available scan results */
1169                 if (mode == NL80211_IFTYPE_ADHOC)
1170                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1171                                                bssid, ssid, ssid_len,
1172                                                WLAN_CAPABILITY_IBSS,
1173                                                WLAN_CAPABILITY_IBSS);
1174                 else
1175                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1176                                                bssid, ssid, ssid_len,
1177                                                WLAN_CAPABILITY_ESS,
1178                                                WLAN_CAPABILITY_ESS);
1179
1180                 if (!bss) {
1181                         if (is_scanning_required) {
1182                                 dev_warn(priv->adapter->dev,
1183                                          "assoc: requested bss not found in scan results\n");
1184                                 break;
1185                         }
1186                         is_scanning_required = 1;
1187                 } else {
1188                         dev_dbg(priv->adapter->dev,
1189                                 "info: trying to associate to '%s' bssid %pM\n",
1190                                 (char *) req_ssid.ssid, bss->bssid);
1191                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1192                         break;
1193                 }
1194         }
1195
1196         if (mwifiex_bss_start(priv, bss, &req_ssid))
1197                 return -EFAULT;
1198
1199         if (mode == NL80211_IFTYPE_ADHOC) {
1200                 /* Inform the BSS information to kernel, otherwise
1201                  * kernel will give a panic after successful assoc */
1202                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1203                         return -EFAULT;
1204         }
1205
1206         return ret;
1207 }
1208
1209 /*
1210  * CFG802.11 operation handler for association request.
1211  *
1212  * This function does not work when the current mode is set to Ad-Hoc, or
1213  * when there is already an association procedure going on. The given BSS
1214  * information is used to associate.
1215  */
1216 static int
1217 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1218                          struct cfg80211_connect_params *sme)
1219 {
1220         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1221         int ret = 0;
1222
1223         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1224                 wiphy_err(wiphy, "received infra assoc request "
1225                                 "when station is in ibss mode\n");
1226                 goto done;
1227         }
1228
1229         if (priv->bss_mode == NL80211_IFTYPE_AP) {
1230                 wiphy_err(wiphy, "skip association request for AP interface\n");
1231                 goto done;
1232         }
1233
1234         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1235                   (char *) sme->ssid, sme->bssid);
1236
1237         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1238                                      priv->bss_mode, sme->channel, sme, 0);
1239 done:
1240         if (!ret) {
1241                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1242                                         NULL, 0, WLAN_STATUS_SUCCESS,
1243                                         GFP_KERNEL);
1244                 dev_dbg(priv->adapter->dev,
1245                         "info: associated to bssid %pM successfully\n",
1246                         priv->cfg_bssid);
1247         } else {
1248                 dev_dbg(priv->adapter->dev,
1249                         "info: association to bssid %pM failed\n",
1250                         priv->cfg_bssid);
1251                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1252         }
1253
1254         return ret;
1255 }
1256
1257 /*
1258  * CFG802.11 operation handler to join an IBSS.
1259  *
1260  * This function does not work in any mode other than Ad-Hoc, or if
1261  * a join operation is already in progress.
1262  */
1263 static int
1264 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1265                            struct cfg80211_ibss_params *params)
1266 {
1267         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1268         int ret = 0;
1269
1270         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1271                 wiphy_err(wiphy, "request to join ibss received "
1272                                 "when station is not in ibss mode\n");
1273                 goto done;
1274         }
1275
1276         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1277                   (char *) params->ssid, params->bssid);
1278
1279         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1280                                      params->bssid, priv->bss_mode,
1281                                      params->channel, NULL, params->privacy);
1282 done:
1283         if (!ret) {
1284                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1285                 dev_dbg(priv->adapter->dev,
1286                         "info: joined/created adhoc network with bssid"
1287                         " %pM successfully\n", priv->cfg_bssid);
1288         } else {
1289                 dev_dbg(priv->adapter->dev,
1290                         "info: failed creating/joining adhoc network\n");
1291         }
1292
1293         return ret;
1294 }
1295
1296 /*
1297  * CFG802.11 operation handler to leave an IBSS.
1298  *
1299  * This function does not work if a leave operation is
1300  * already in progress.
1301  */
1302 static int
1303 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1304 {
1305         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1306
1307         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1308                   priv->cfg_bssid);
1309         if (mwifiex_deauthenticate(priv, NULL))
1310                 return -EFAULT;
1311
1312         memset(priv->cfg_bssid, 0, ETH_ALEN);
1313
1314         return 0;
1315 }
1316
1317 /*
1318  * CFG802.11 operation handler for scan request.
1319  *
1320  * This function issues a scan request to the firmware based upon
1321  * the user specified scan configuration. On successfull completion,
1322  * it also informs the results.
1323  */
1324 static int
1325 mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1326                       struct cfg80211_scan_request *request)
1327 {
1328         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1329         int i;
1330         struct ieee80211_channel *chan;
1331
1332         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1333
1334         priv->scan_request = request;
1335
1336         priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1337                                       GFP_KERNEL);
1338         if (!priv->user_scan_cfg) {
1339                 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1340                 return -ENOMEM;
1341         }
1342
1343         priv->user_scan_cfg->num_ssids = request->n_ssids;
1344         priv->user_scan_cfg->ssid_list = request->ssids;
1345
1346         if (request->ie && request->ie_len) {
1347                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1348                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1349                                 continue;
1350                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1351                         memcpy(&priv->vs_ie[i].ie, request->ie,
1352                                request->ie_len);
1353                         break;
1354                 }
1355         }
1356
1357         for (i = 0; i < request->n_channels; i++) {
1358                 chan = request->channels[i];
1359                 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1360                 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1361
1362                 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1363                         priv->user_scan_cfg->chan_list[i].scan_type =
1364                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1365                 else
1366                         priv->user_scan_cfg->chan_list[i].scan_type =
1367                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1368
1369                 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1370         }
1371         if (mwifiex_set_user_scan_ioctl(priv, priv->user_scan_cfg))
1372                 return -EFAULT;
1373
1374         if (request->ie && request->ie_len) {
1375                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1376                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1377                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1378                                 memset(&priv->vs_ie[i].ie, 0,
1379                                        MWIFIEX_MAX_VSIE_LEN);
1380                         }
1381                 }
1382         }
1383         return 0;
1384 }
1385
1386 /*
1387  * This function sets up the CFG802.11 specific HT capability fields
1388  * with default values.
1389  *
1390  * The following default values are set -
1391  *      - HT Supported = True
1392  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1393  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1394  *      - HT Capabilities supported by firmware
1395  *      - MCS information, Rx mask = 0xff
1396  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1397  */
1398 static void
1399 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1400                       struct mwifiex_private *priv)
1401 {
1402         int rx_mcs_supp;
1403         struct ieee80211_mcs_info mcs_set;
1404         u8 *mcs = (u8 *)&mcs_set;
1405         struct mwifiex_adapter *adapter = priv->adapter;
1406
1407         ht_info->ht_supported = true;
1408         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1409         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1410
1411         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1412
1413         /* Fill HT capability information */
1414         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1415                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1416         else
1417                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1418
1419         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1420                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1421         else
1422                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1423
1424         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1425                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1426         else
1427                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1428
1429         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1430                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1431         else
1432                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1433
1434         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1435                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1436         else
1437                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1438
1439         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1440         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1441
1442         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1443         /* Set MCS for 1x1 */
1444         memset(mcs, 0xff, rx_mcs_supp);
1445         /* Clear all the other values */
1446         memset(&mcs[rx_mcs_supp], 0,
1447                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1448         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1449             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1450                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1451                 SETHT_MCS32(mcs_set.rx_mask);
1452
1453         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1454
1455         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1456 }
1457
1458 /*
1459  *  create a new virtual interface with the given name
1460  */
1461 struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1462                                             char *name,
1463                                             enum nl80211_iftype type,
1464                                             u32 *flags,
1465                                             struct vif_params *params)
1466 {
1467         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1468         struct mwifiex_private *priv;
1469         struct net_device *dev;
1470         void *mdev_priv;
1471         struct wireless_dev *wdev;
1472
1473         if (!adapter)
1474                 return NULL;
1475
1476         switch (type) {
1477         case NL80211_IFTYPE_UNSPECIFIED:
1478         case NL80211_IFTYPE_STATION:
1479         case NL80211_IFTYPE_ADHOC:
1480                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1481                 if (priv->bss_mode) {
1482                         wiphy_err(wiphy,
1483                                   "cannot create multiple sta/adhoc ifaces\n");
1484                         return NULL;
1485                 }
1486
1487                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1488                 if (!wdev)
1489                         return NULL;
1490
1491                 wdev->wiphy = wiphy;
1492                 priv->wdev = wdev;
1493                 wdev->iftype = NL80211_IFTYPE_STATION;
1494
1495                 if (type == NL80211_IFTYPE_UNSPECIFIED)
1496                         priv->bss_mode = NL80211_IFTYPE_STATION;
1497                 else
1498                         priv->bss_mode = type;
1499
1500                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
1501                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1502                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
1503                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
1504                 priv->bss_num = 0;
1505
1506                 break;
1507         case NL80211_IFTYPE_AP:
1508                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
1509
1510                 if (priv->bss_mode) {
1511                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
1512                         return NULL;
1513                 }
1514
1515                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1516                 if (!wdev)
1517                         return NULL;
1518
1519                 priv->wdev = wdev;
1520                 wdev->wiphy = wiphy;
1521                 wdev->iftype = NL80211_IFTYPE_AP;
1522
1523                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
1524                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1525                 priv->bss_priority = MWIFIEX_BSS_ROLE_UAP;
1526                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
1527                 priv->bss_started = 0;
1528                 priv->bss_num = 0;
1529                 priv->bss_mode = type;
1530
1531                 break;
1532         default:
1533                 wiphy_err(wiphy, "type not supported\n");
1534                 return NULL;
1535         }
1536
1537         dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
1538                               ether_setup, 1);
1539         if (!dev) {
1540                 wiphy_err(wiphy, "no memory available for netdevice\n");
1541                 goto error;
1542         }
1543
1544         mwifiex_init_priv_params(priv, dev);
1545         priv->netdev = dev;
1546
1547         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
1548
1549         if (adapter->config_bands & BAND_A)
1550                 mwifiex_setup_ht_caps(
1551                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
1552
1553         dev_net_set(dev, wiphy_net(wiphy));
1554         dev->ieee80211_ptr = priv->wdev;
1555         dev->ieee80211_ptr->iftype = priv->bss_mode;
1556         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
1557         memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
1558         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
1559
1560         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1561         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1562         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1563
1564         mdev_priv = netdev_priv(dev);
1565         *((unsigned long *) mdev_priv) = (unsigned long) priv;
1566
1567         SET_NETDEV_DEV(dev, adapter->dev);
1568
1569         /* Register network device */
1570         if (register_netdevice(dev)) {
1571                 wiphy_err(wiphy, "cannot register virtual network device\n");
1572                 goto error;
1573         }
1574
1575         sema_init(&priv->async_sem, 1);
1576         priv->scan_pending_on_block = false;
1577
1578         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
1579
1580 #ifdef CONFIG_DEBUG_FS
1581         mwifiex_dev_debugfs_init(priv);
1582 #endif
1583         return dev;
1584 error:
1585         if (dev && (dev->reg_state == NETREG_UNREGISTERED))
1586                 free_netdev(dev);
1587         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1588
1589         return NULL;
1590 }
1591 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
1592
1593 /*
1594  * del_virtual_intf: remove the virtual interface determined by dev
1595  */
1596 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev)
1597 {
1598         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1599
1600 #ifdef CONFIG_DEBUG_FS
1601         mwifiex_dev_debugfs_remove(priv);
1602 #endif
1603
1604         if (!netif_queue_stopped(priv->netdev))
1605                 netif_stop_queue(priv->netdev);
1606
1607         if (netif_carrier_ok(priv->netdev))
1608                 netif_carrier_off(priv->netdev);
1609
1610         if (dev->reg_state == NETREG_REGISTERED)
1611                 unregister_netdevice(dev);
1612
1613         if (dev->reg_state == NETREG_UNREGISTERED)
1614                 free_netdev(dev);
1615
1616         /* Clear the priv in adapter */
1617         priv->netdev = NULL;
1618
1619         priv->media_connected = false;
1620
1621         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1622
1623         return 0;
1624 }
1625 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
1626
1627 /* station cfg80211 operations */
1628 static struct cfg80211_ops mwifiex_cfg80211_ops = {
1629         .add_virtual_intf = mwifiex_add_virtual_intf,
1630         .del_virtual_intf = mwifiex_del_virtual_intf,
1631         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1632         .scan = mwifiex_cfg80211_scan,
1633         .connect = mwifiex_cfg80211_connect,
1634         .disconnect = mwifiex_cfg80211_disconnect,
1635         .get_station = mwifiex_cfg80211_get_station,
1636         .dump_station = mwifiex_cfg80211_dump_station,
1637         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1638         .join_ibss = mwifiex_cfg80211_join_ibss,
1639         .leave_ibss = mwifiex_cfg80211_leave_ibss,
1640         .add_key = mwifiex_cfg80211_add_key,
1641         .del_key = mwifiex_cfg80211_del_key,
1642         .set_default_key = mwifiex_cfg80211_set_default_key,
1643         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1644         .set_tx_power = mwifiex_cfg80211_set_tx_power,
1645         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
1646         .start_ap = mwifiex_cfg80211_start_ap,
1647         .stop_ap = mwifiex_cfg80211_stop_ap,
1648         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
1649 };
1650
1651 /*
1652  * This function registers the device with CFG802.11 subsystem.
1653  *
1654  * The function creates the wireless device/wiphy, populates it with
1655  * default parameters and handler function pointers, and finally
1656  * registers the device.
1657  */
1658
1659 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
1660 {
1661         int ret;
1662         void *wdev_priv;
1663         struct wiphy *wiphy;
1664         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1665         u8 *country_code;
1666
1667         /* create a new wiphy for use with cfg80211 */
1668         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
1669                           sizeof(struct mwifiex_adapter *));
1670         if (!wiphy) {
1671                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
1672                 return -ENOMEM;
1673         }
1674         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
1675         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
1676         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1677                                  BIT(NL80211_IFTYPE_ADHOC) |
1678                                  BIT(NL80211_IFTYPE_AP);
1679
1680         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1681         if (adapter->config_bands & BAND_A)
1682                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1683         else
1684                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1685
1686         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
1687         wiphy->n_iface_combinations = 1;
1688
1689         /* Initialize cipher suits */
1690         wiphy->cipher_suites = mwifiex_cipher_suites;
1691         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1692
1693         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
1694         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1695         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | WIPHY_FLAG_CUSTOM_REGULATORY;
1696
1697         /* Reserve space for mwifiex specific private data for BSS */
1698         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
1699
1700         wiphy->reg_notifier = mwifiex_reg_notifier;
1701
1702         /* Set struct mwifiex_adapter pointer in wiphy_priv */
1703         wdev_priv = wiphy_priv(wiphy);
1704         *(unsigned long *)wdev_priv = (unsigned long)adapter;
1705
1706         set_wiphy_dev(wiphy, (struct device *)priv->adapter->dev);
1707
1708         ret = wiphy_register(wiphy);
1709         if (ret < 0) {
1710                 dev_err(adapter->dev,
1711                         "%s: wiphy_register failed: %d\n", __func__, ret);
1712                 wiphy_free(wiphy);
1713                 return ret;
1714         }
1715         country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
1716         if (country_code && regulatory_hint(wiphy, country_code))
1717                 dev_err(adapter->dev, "regulatory_hint() failed\n");
1718
1719         adapter->wiphy = wiphy;
1720         return ret;
1721 }