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_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  52 {
  53         switch (chan_type) {
  54         case NL80211_CHAN_NO_HT:
  55         case NL80211_CHAN_HT20:
  56                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  57         case NL80211_CHAN_HT40PLUS:
  58                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  59         case NL80211_CHAN_HT40MINUS:
  60                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  61         default:
  62                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  63         }
  64 }
  65
  66 /*
  67  * This function checks whether WEP is set.
  68  */
  69 static int
  70 mwifiex_is_alg_wep(u32 cipher)
  71 {
  72         switch (cipher) {
  73         case WLAN_CIPHER_SUITE_WEP40:
  74         case WLAN_CIPHER_SUITE_WEP104:
  75                 return 1;
  76         default:
  77                 break;
  78         }
  79
  80         return 0;
  81 }
  82
  83 /*
  84  * This function retrieves the private structure from kernel wiphy structure.
  85  */
  86 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
  87 {
  88         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
  89 }
  90
  91 /*
  92  * CFG802.11 operation handler to delete a network key.
  93  */
  94 static int
  95 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
  96                          u8 key_index, bool pairwise, const u8 *mac_addr)
  97 {
  98         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
  99         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 100         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 101
 102         if (mwifiex_set_encode(priv, NULL, 0, key_index, peer_mac, 1)) {
 103                 wiphy_err(wiphy, "deleting the crypto keys\n");
 104                 return -EFAULT;
 105         }
 106
 107         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 108         return 0;
 109 }
 110
 111 /*
 112  * CFG802.11 operation handler to set Tx power.
 113  */
 114 static int
 115 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 116                               enum nl80211_tx_power_setting type,
 117                               int mbm)
 118 {
 119         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 120         struct mwifiex_private *priv;
 121         struct mwifiex_power_cfg power_cfg;
 122         int dbm = MBM_TO_DBM(mbm);
 123
 124         if (type == NL80211_TX_POWER_FIXED) {
 125                 power_cfg.is_power_auto = 0;
 126                 power_cfg.power_level = dbm;
 127         } else {
 128                 power_cfg.is_power_auto = 1;
 129         }
 130
 131         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 132
 133         return mwifiex_set_tx_power(priv, &power_cfg);
 134 }
 135
 136 /*
 137  * CFG802.11 operation handler to set Power Save option.
 138  *
 139  * The timeout value, if provided, is currently ignored.
 140  */
 141 static int
 142 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 143                                 struct net_device *dev,
 144                                 bool enabled, int timeout)
 145 {
 146         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 147         u32 ps_mode;
 148
 149         if (timeout)
 150                 wiphy_dbg(wiphy,
 151                           "info: ignore timeout value for IEEE Power Save\n");
 152
 153         ps_mode = enabled;
 154
 155         return mwifiex_drv_set_power(priv, &ps_mode);
 156 }
 157
 158 /*
 159  * CFG802.11 operation handler to set the default network key.
 160  */
 161 static int
 162 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 163                                  u8 key_index, bool unicast,
 164                                  bool multicast)
 165 {
 166         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 167
 168         /* Return if WEP key not configured */
 169         if (!priv->sec_info.wep_enabled)
 170                 return 0;
 171
 172         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 173                 priv->wep_key_curr_index = key_index;
 174         } else if (mwifiex_set_encode(priv, NULL, 0, key_index, NULL, 0)) {
 175                 wiphy_err(wiphy, "set default Tx key index\n");
 176                 return -EFAULT;
 177         }
 178
 179         return 0;
 180 }
 181
 182 /*
 183  * CFG802.11 operation handler to add a network key.
 184  */
 185 static int
 186 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 187                          u8 key_index, bool pairwise, const u8 *mac_addr,
 188                          struct key_params *params)
 189 {
 190         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 191         struct mwifiex_wep_key *wep_key;
 192         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 193         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 194
 195         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 196             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 197              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 198                 if (params->key && params->key_len) {
 199                         wep_key = &priv->wep_key[key_index];
 200                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 201                         memcpy(wep_key->key_material, params->key,
 202                                params->key_len);
 203                         wep_key->key_index = key_index;
 204                         wep_key->key_length = params->key_len;
 205                         priv->sec_info.wep_enabled = 1;
 206                 }
 207                 return 0;
 208         }
 209
 210         if (mwifiex_set_encode(priv, params->key, params->key_len,
 211                                key_index, peer_mac, 0)) {
 212                 wiphy_err(wiphy, "crypto keys added\n");
 213                 return -EFAULT;
 214         }
 215
 216         return 0;
 217 }
 218
 219 /*
 220  * This function sends domain information to the firmware.
 221  *
 222  * The following information are passed to the firmware -
 223  *      - Country codes
 224  *      - Sub bands (first channel, number of channels, maximum Tx power)
 225  */
 226 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 227 {
 228         u8 no_of_triplet = 0;
 229         struct ieee80211_country_ie_triplet *t;
 230         u8 no_of_parsed_chan = 0;
 231         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 232         u8 i, flag = 0;
 233         enum ieee80211_band band;
 234         struct ieee80211_supported_band *sband;
 235         struct ieee80211_channel *ch;
 236         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 237         struct mwifiex_private *priv;
 238         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 239
 240         /* Set country code */
 241         domain_info->country_code[0] = adapter->country_code[0];
 242         domain_info->country_code[1] = adapter->country_code[1];
 243         domain_info->country_code[2] = ' ';
 244
 245         band = mwifiex_band_to_radio_type(adapter->config_bands);
 246         if (!wiphy->bands[band]) {
 247                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 248                 return -1;
 249         }
 250
 251         sband = wiphy->bands[band];
 252
 253         for (i = 0; i < sband->n_channels ; i++) {
 254                 ch = &sband->channels[i];
 255                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 256                         continue;
 257
 258                 if (!flag) {
 259                         flag = 1;
 260                         first_chan = (u32) ch->hw_value;
 261                         next_chan = first_chan;
 262                         max_pwr = ch->max_reg_power;
 263                         no_of_parsed_chan = 1;
 264                         continue;
 265                 }
 266
 267                 if (ch->hw_value == next_chan + 1 &&
 268                     ch->max_reg_power == max_pwr) {
 269                         next_chan++;
 270                         no_of_parsed_chan++;
 271                 } else {
 272                         t = &domain_info->triplet[no_of_triplet];
 273                         t->chans.first_channel = first_chan;
 274                         t->chans.num_channels = no_of_parsed_chan;
 275                         t->chans.max_power = max_pwr;
 276                         no_of_triplet++;
 277                         first_chan = (u32) ch->hw_value;
 278                         next_chan = first_chan;
 279                         max_pwr = ch->max_reg_power;
 280                         no_of_parsed_chan = 1;
 281                 }
 282         }
 283
 284         if (flag) {
 285                 t = &domain_info->triplet[no_of_triplet];
 286                 t->chans.first_channel = first_chan;
 287                 t->chans.num_channels = no_of_parsed_chan;
 288                 t->chans.max_power = max_pwr;
 289                 no_of_triplet++;
 290         }
 291
 292         domain_info->no_of_triplet = no_of_triplet;
 293
 294         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 295
 296         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 297                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 298                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 299                 return -1;
 300         }
 301
 302         return 0;
 303 }
 304
 305 /*
 306  * CFG802.11 regulatory domain callback function.
 307  *
 308  * This function is called when the regulatory domain is changed due to the
 309  * following reasons -
 310  *      - Set by driver
 311  *      - Set by system core
 312  *      - Set by user
 313  *      - Set bt Country IE
 314  */
 315 static int mwifiex_reg_notifier(struct wiphy *wiphy,
 316                                 struct regulatory_request *request)
 317 {
 318         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 319
 320         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 321                   request->alpha2[0], request->alpha2[1]);
 322
 323         memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
 324
 325         switch (request->initiator) {
 326         case NL80211_REGDOM_SET_BY_DRIVER:
 327         case NL80211_REGDOM_SET_BY_CORE:
 328         case NL80211_REGDOM_SET_BY_USER:
 329                 break;
 330                 /* Todo: apply driver specific changes in channel flags based
 331                    on the request initiator if necessary. */
 332         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 333                 break;
 334         }
 335         mwifiex_send_domain_info_cmd_fw(wiphy);
 336
 337         return 0;
 338 }
 339
 340 /*
 341  * This function sets the fragmentation threshold.
 342  *
 343  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 344  * and MWIFIEX_FRAG_MAX_VALUE.
 345  */
 346 static int
 347 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 348 {
 349         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 350             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 351                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 352
 353         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 354                                      HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 355                                      &frag_thr);
 356 }
 357
 358 /*
 359  * This function sets the RTS threshold.
 360
 361  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 362  * and MWIFIEX_RTS_MAX_VALUE.
 363  */
 364 static int
 365 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 366 {
 367         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 368                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 369
 370         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 371                                     HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 372                                     &rts_thr);
 373 }
 374
 375 /*
 376  * CFG802.11 operation handler to set wiphy parameters.
 377  *
 378  * This function can be used to set the RTS threshold and the
 379  * Fragmentation threshold of the driver.
 380  */
 381 static int
 382 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 383 {
 384         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 385         struct mwifiex_private *priv;
 386         struct mwifiex_uap_bss_param *bss_cfg;
 387         int ret, bss_started, i;
 388
 389         for (i = 0; i < adapter->priv_num; i++) {
 390                 priv = adapter->priv[i];
 391
 392                 switch (priv->bss_role) {
 393                 case MWIFIEX_BSS_ROLE_UAP:
 394                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 395                                           GFP_KERNEL);
 396                         if (!bss_cfg)
 397                                 return -ENOMEM;
 398
 399                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 400
 401                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 402                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 403                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 404                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 405                         if (changed & WIPHY_PARAM_RETRY_LONG)
 406                                 bss_cfg->retry_limit = wiphy->retry_long;
 407
 408                         bss_started = priv->bss_started;
 409
 410                         ret = mwifiex_send_cmd_sync(priv,
 411                                                     HostCmd_CMD_UAP_BSS_STOP,
 412                                                     HostCmd_ACT_GEN_SET, 0,
 413                                                     NULL);
 414                         if (ret) {
 415                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 416                                 kfree(bss_cfg);
 417                                 return ret;
 418                         }
 419
 420                         ret = mwifiex_send_cmd_async(priv,
 421                                                      HostCmd_CMD_UAP_SYS_CONFIG,
 422                                                      HostCmd_ACT_GEN_SET,
 423                                                      UAP_BSS_PARAMS_I, bss_cfg);
 424
 425                         kfree(bss_cfg);
 426
 427                         if (ret) {
 428                                 wiphy_err(wiphy, "Failed to set bss config\n");
 429                                 return ret;
 430                         }
 431
 432                         if (!bss_started)
 433                                 break;
 434
 435                         ret = mwifiex_send_cmd_async(priv,
 436                                                      HostCmd_CMD_UAP_BSS_START,
 437                                                      HostCmd_ACT_GEN_SET, 0,
 438                                                      NULL);
 439                         if (ret) {
 440                                 wiphy_err(wiphy, "Failed to start BSS\n");
 441                                 return ret;
 442                         }
 443
 444                         break;
 445                 case MWIFIEX_BSS_ROLE_STA:
 446                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 447                                 ret = mwifiex_set_rts(priv,
 448                                                       wiphy->rts_threshold);
 449                                 if (ret)
 450                                         return ret;
 451                         }
 452                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 453                                 ret = mwifiex_set_frag(priv,
 454                                                        wiphy->frag_threshold);
 455                                 if (ret)
 456                                         return ret;
 457                         }
 458                         break;
 459                 }
 460         }
 461
 462         return 0;
 463 }
 464
 465 /*
 466  * CFG802.11 operation handler to change interface type.
 467  */
 468 static int
 469 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 470                                      struct net_device *dev,
 471                                      enum nl80211_iftype type, u32 *flags,
 472                                      struct vif_params *params)
 473 {
 474         int ret;
 475         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 476
 477         switch (dev->ieee80211_ptr->iftype) {
 478         case NL80211_IFTYPE_ADHOC:
 479                 switch (type) {
 480                 case NL80211_IFTYPE_STATION:
 481                         break;
 482                 case NL80211_IFTYPE_UNSPECIFIED:
 483                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 484                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 485                         return 0;
 486                 case NL80211_IFTYPE_AP:
 487                 default:
 488                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 489                                   dev->name, type);
 490                         return -EOPNOTSUPP;
 491                 }
 492                 break;
 493         case NL80211_IFTYPE_STATION:
 494                 switch (type) {
 495                 case NL80211_IFTYPE_ADHOC:
 496                         break;
 497                 case NL80211_IFTYPE_UNSPECIFIED:
 498                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 499                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 500                         return 0;
 501                 case NL80211_IFTYPE_AP:
 502                 default:
 503                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 504                                   dev->name, type);
 505                         return -EOPNOTSUPP;
 506                 }
 507                 break;
 508         case NL80211_IFTYPE_AP:
 509                 switch (type) {
 510                 case NL80211_IFTYPE_UNSPECIFIED:
 511                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 512                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 513                         return 0;
 514                 case NL80211_IFTYPE_ADHOC:
 515                 case NL80211_IFTYPE_STATION:
 516                 default:
 517                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 518                                   dev->name, type);
 519                         return -EOPNOTSUPP;
 520                 }
 521                 break;
 522         default:
 523                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 524                           dev->name, dev->ieee80211_ptr->iftype);
 525                 return -EOPNOTSUPP;
 526         }
 527
 528         dev->ieee80211_ptr->iftype = type;
 529         priv->bss_mode = type;
 530         mwifiex_deauthenticate(priv, NULL);
 531
 532         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 533
 534         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
 535                                     HostCmd_ACT_GEN_SET, 0, NULL);
 536
 537         return ret;
 538 }
 539
 540 /*
 541  * This function dumps the station information on a buffer.
 542  *
 543  * The following information are shown -
 544  *      - Total bytes transmitted
 545  *      - Total bytes received
 546  *      - Total packets transmitted
 547  *      - Total packets received
 548  *      - Signal quality level
 549  *      - Transmission rate
 550  */
 551 static int
 552 mwifiex_dump_station_info(struct mwifiex_private *priv,
 553                           struct station_info *sinfo)
 554 {
 555         u32 rate;
 556
 557         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 558                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 559                         STATION_INFO_TX_BITRATE |
 560                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 561
 562         /* Get signal information from the firmware */
 563         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 564                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 565                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 566                 return -EFAULT;
 567         }
 568
 569         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 570                 dev_err(priv->adapter->dev, "getting data rate\n");
 571                 return -EFAULT;
 572         }
 573
 574         /* Get DTIM period information from firmware */
 575         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 576                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 577                               &priv->dtim_period);
 578
 579         /*
 580          * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
 581          * MCS index values for us are 0 to 15.
 582          */
 583         if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 584                 sinfo->txrate.mcs = priv->tx_rate;
 585                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 586                 /* 40MHz rate */
 587                 if (priv->tx_htinfo & BIT(1))
 588                         sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 589                 /* SGI enabled */
 590                 if (priv->tx_htinfo & BIT(2))
 591                         sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 592         }
 593
 594         sinfo->signal_avg = priv->bcn_rssi_avg;
 595         sinfo->rx_bytes = priv->stats.rx_bytes;
 596         sinfo->tx_bytes = priv->stats.tx_bytes;
 597         sinfo->rx_packets = priv->stats.rx_packets;
 598         sinfo->tx_packets = priv->stats.tx_packets;
 599         sinfo->signal = priv->bcn_rssi_avg;
 600         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 601         sinfo->txrate.legacy = rate * 5;
 602
 603         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 604                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 605                 sinfo->bss_param.flags = 0;
 606                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 607                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 608                         sinfo->bss_param.flags |=
 609                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 610                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 611                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 612                         sinfo->bss_param.flags |=
 613                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 614                 sinfo->bss_param.dtim_period = priv->dtim_period;
 615                 sinfo->bss_param.beacon_interval =
 616                         priv->curr_bss_params.bss_descriptor.beacon_period;
 617         }
 618
 619         return 0;
 620 }
 621
 622 /*
 623  * CFG802.11 operation handler to get station information.
 624  *
 625  * This function only works in connected mode, and dumps the
 626  * requested station information, if available.
 627  */
 628 static int
 629 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 630                              u8 *mac, struct station_info *sinfo)
 631 {
 632         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 633
 634         if (!priv->media_connected)
 635                 return -ENOENT;
 636         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 637                 return -ENOENT;
 638
 639         return mwifiex_dump_station_info(priv, sinfo);
 640 }
 641
 642 /*
 643  * CFG802.11 operation handler to dump station information.
 644  */
 645 static int
 646 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 647                               int idx, u8 *mac, struct station_info *sinfo)
 648 {
 649         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 650
 651         if (!priv->media_connected || idx)
 652                 return -ENOENT;
 653
 654         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 655
 656         return mwifiex_dump_station_info(priv, sinfo);
 657 }
 658
 659 /* Supported rates to be advertised to the cfg80211 */
 660
 661 static struct ieee80211_rate mwifiex_rates[] = {
 662         {.bitrate = 10, .hw_value = 2, },
 663         {.bitrate = 20, .hw_value = 4, },
 664         {.bitrate = 55, .hw_value = 11, },
 665         {.bitrate = 110, .hw_value = 22, },
 666         {.bitrate = 60, .hw_value = 12, },
 667         {.bitrate = 90, .hw_value = 18, },
 668         {.bitrate = 120, .hw_value = 24, },
 669         {.bitrate = 180, .hw_value = 36, },
 670         {.bitrate = 240, .hw_value = 48, },
 671         {.bitrate = 360, .hw_value = 72, },
 672         {.bitrate = 480, .hw_value = 96, },
 673         {.bitrate = 540, .hw_value = 108, },
 674 };
 675
 676 /* Channel definitions to be advertised to cfg80211 */
 677
 678 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
 679         {.center_freq = 2412, .hw_value = 1, },
 680         {.center_freq = 2417, .hw_value = 2, },
 681         {.center_freq = 2422, .hw_value = 3, },
 682         {.center_freq = 2427, .hw_value = 4, },
 683         {.center_freq = 2432, .hw_value = 5, },
 684         {.center_freq = 2437, .hw_value = 6, },
 685         {.center_freq = 2442, .hw_value = 7, },
 686         {.center_freq = 2447, .hw_value = 8, },
 687         {.center_freq = 2452, .hw_value = 9, },
 688         {.center_freq = 2457, .hw_value = 10, },
 689         {.center_freq = 2462, .hw_value = 11, },
 690         {.center_freq = 2467, .hw_value = 12, },
 691         {.center_freq = 2472, .hw_value = 13, },
 692         {.center_freq = 2484, .hw_value = 14, },
 693 };
 694
 695 static struct ieee80211_supported_band mwifiex_band_2ghz = {
 696         .channels = mwifiex_channels_2ghz,
 697         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
 698         .bitrates = mwifiex_rates,
 699         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
 700 };
 701
 702 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
 703         {.center_freq = 5040, .hw_value = 8, },
 704         {.center_freq = 5060, .hw_value = 12, },
 705         {.center_freq = 5080, .hw_value = 16, },
 706         {.center_freq = 5170, .hw_value = 34, },
 707         {.center_freq = 5190, .hw_value = 38, },
 708         {.center_freq = 5210, .hw_value = 42, },
 709         {.center_freq = 5230, .hw_value = 46, },
 710         {.center_freq = 5180, .hw_value = 36, },
 711         {.center_freq = 5200, .hw_value = 40, },
 712         {.center_freq = 5220, .hw_value = 44, },
 713         {.center_freq = 5240, .hw_value = 48, },
 714         {.center_freq = 5260, .hw_value = 52, },
 715         {.center_freq = 5280, .hw_value = 56, },
 716         {.center_freq = 5300, .hw_value = 60, },
 717         {.center_freq = 5320, .hw_value = 64, },
 718         {.center_freq = 5500, .hw_value = 100, },
 719         {.center_freq = 5520, .hw_value = 104, },
 720         {.center_freq = 5540, .hw_value = 108, },
 721         {.center_freq = 5560, .hw_value = 112, },
 722         {.center_freq = 5580, .hw_value = 116, },
 723         {.center_freq = 5600, .hw_value = 120, },
 724         {.center_freq = 5620, .hw_value = 124, },
 725         {.center_freq = 5640, .hw_value = 128, },
 726         {.center_freq = 5660, .hw_value = 132, },
 727         {.center_freq = 5680, .hw_value = 136, },
 728         {.center_freq = 5700, .hw_value = 140, },
 729         {.center_freq = 5745, .hw_value = 149, },
 730         {.center_freq = 5765, .hw_value = 153, },
 731         {.center_freq = 5785, .hw_value = 157, },
 732         {.center_freq = 5805, .hw_value = 161, },
 733         {.center_freq = 5825, .hw_value = 165, },
 734 };
 735
 736 static struct ieee80211_supported_band mwifiex_band_5ghz = {
 737         .channels = mwifiex_channels_5ghz,
 738         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
 739         .bitrates = mwifiex_rates + 4,
 740         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
 741 };
 742
 743
 744 /* Supported crypto cipher suits to be advertised to cfg80211 */
 745
 746 static const u32 mwifiex_cipher_suites[] = {
 747         WLAN_CIPHER_SUITE_WEP40,
 748         WLAN_CIPHER_SUITE_WEP104,
 749         WLAN_CIPHER_SUITE_TKIP,
 750         WLAN_CIPHER_SUITE_CCMP,
 751 };
 752
 753 /*
 754  * CFG802.11 operation handler for setting bit rates.
 755  *
 756  * Function configures data rates to firmware using bitrate mask
 757  * provided by cfg80211.
 758  */
 759 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
 760                                 struct net_device *dev,
 761                                 const u8 *peer,
 762                                 const struct cfg80211_bitrate_mask *mask)
 763 {
 764         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 765         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
 766         enum ieee80211_band band;
 767
 768         if (!priv->media_connected) {
 769                 dev_err(priv->adapter->dev,
 770                         "Can not set Tx data rate in disconnected state\n");
 771                 return -EINVAL;
 772         }
 773
 774         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
 775
 776         memset(bitmap_rates, 0, sizeof(bitmap_rates));
 777
 778         /* Fill HR/DSSS rates. */
 779         if (band == IEEE80211_BAND_2GHZ)
 780                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
 781
 782         /* Fill OFDM rates */
 783         if (band == IEEE80211_BAND_2GHZ)
 784                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
 785         else
 786                 bitmap_rates[1] = mask->control[band].legacy;
 787
 788         /* Fill MCS rates */
 789         bitmap_rates[2] = mask->control[band].mcs[0];
 790         if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
 791                 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
 792
 793         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
 794                                      HostCmd_ACT_GEN_SET, 0, bitmap_rates);
 795 }
 796
 797 /*
 798  * CFG802.11 operation handler for connection quality monitoring.
 799  *
 800  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
 801  * events to FW.
 802  */
 803 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
 804                                                 struct net_device *dev,
 805                                                 s32 rssi_thold, u32 rssi_hyst)
 806 {
 807         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 808         struct mwifiex_ds_misc_subsc_evt subsc_evt;
 809
 810         priv->cqm_rssi_thold = rssi_thold;
 811         priv->cqm_rssi_hyst = rssi_hyst;
 812
 813         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
 814         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
 815
 816         /* Subscribe/unsubscribe low and high rssi events */
 817         if (rssi_thold && rssi_hyst) {
 818                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
 819                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
 820                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
 821                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
 822                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
 823                 return mwifiex_send_cmd_sync(priv,
 824                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 825                                              0, 0, &subsc_evt);
 826         } else {
 827                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
 828                 return mwifiex_send_cmd_sync(priv,
 829                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 830                                              0, 0, &subsc_evt);
 831         }
 832
 833         return 0;
 834 }
 835
 836 /* cfg80211 operation handler for change_beacon.
 837  * Function retrieves and sets modified management IEs to FW.
 838  */
 839 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
 840                                           struct net_device *dev,
 841                                           struct cfg80211_beacon_data *data)
 842 {
 843         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 844
 845         if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
 846                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
 847                 return -EINVAL;
 848         }
 849
 850         if (!priv->bss_started) {
 851                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
 852                 return -EINVAL;
 853         }
 854
 855         if (mwifiex_set_mgmt_ies(priv, data)) {
 856                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
 857                 return -EFAULT;
 858         }
 859
 860         return 0;
 861 }
 862
 863 static int
 864 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
 865 {
 866         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 867         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 868                                                         MWIFIEX_BSS_ROLE_ANY);
 869         struct mwifiex_ds_ant_cfg ant_cfg;
 870
 871         if (!tx_ant || !rx_ant)
 872                 return -EOPNOTSUPP;
 873
 874         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
 875                 /* Not a MIMO chip. User should provide specific antenna number
 876                  * for Tx/Rx path or enable all antennas for diversity
 877                  */
 878                 if (tx_ant != rx_ant)
 879                         return -EOPNOTSUPP;
 880
 881                 if ((tx_ant & (tx_ant - 1)) &&
 882                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
 883                         return -EOPNOTSUPP;
 884
 885                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
 886                     (priv->adapter->number_of_antenna > 1)) {
 887                         tx_ant = RF_ANTENNA_AUTO;
 888                         rx_ant = RF_ANTENNA_AUTO;
 889                 }
 890         }
 891
 892         ant_cfg.tx_ant = tx_ant;
 893         ant_cfg.rx_ant = rx_ant;
 894
 895         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
 896                                      HostCmd_ACT_GEN_SET, 0, &ant_cfg);
 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         u8 config_bands = 0;
 930
 931         if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP)
 932                 return -1;
 933         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
 934                 return -1;
 935
 936         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
 937         if (!bss_cfg)
 938                 return -ENOMEM;
 939
 940         mwifiex_set_sys_config_invalid_data(bss_cfg);
 941
 942         if (params->beacon_interval)
 943                 bss_cfg->beacon_period = params->beacon_interval;
 944         if (params->dtim_period)
 945                 bss_cfg->dtim_period = params->dtim_period;
 946
 947         if (params->ssid && params->ssid_len) {
 948                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
 949                 bss_cfg->ssid.ssid_len = params->ssid_len;
 950         }
 951
 952         switch (params->hidden_ssid) {
 953         case NL80211_HIDDEN_SSID_NOT_IN_USE:
 954                 bss_cfg->bcast_ssid_ctl = 1;
 955                 break;
 956         case NL80211_HIDDEN_SSID_ZERO_LEN:
 957                 bss_cfg->bcast_ssid_ctl = 0;
 958                 break;
 959         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
 960                 /* firmware doesn't support this type of hidden SSID */
 961         default:
 962                 kfree(bss_cfg);
 963                 return -EINVAL;
 964         }
 965
 966         bss_cfg->channel =
 967             (u8)ieee80211_frequency_to_channel(params->channel->center_freq);
 968         bss_cfg->band_cfg = BAND_CONFIG_MANUAL;
 969
 970         /* Set appropriate bands */
 971         if (params->channel->band == IEEE80211_BAND_2GHZ) {
 972                 if (params->channel_type == NL80211_CHAN_NO_HT)
 973                         config_bands = BAND_B | BAND_G;
 974                 else
 975                         config_bands = BAND_B | BAND_G | BAND_GN;
 976         } else {
 977                 if (params->channel_type == NL80211_CHAN_NO_HT)
 978                         config_bands = BAND_A;
 979                 else
 980                         config_bands = BAND_AN | BAND_A;
 981         }
 982
 983         if (!((config_bands | priv->adapter->fw_bands) &
 984               ~priv->adapter->fw_bands))
 985                 priv->adapter->config_bands = config_bands;
 986
 987         mwifiex_send_domain_info_cmd_fw(wiphy);
 988
 989         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
 990                 kfree(bss_cfg);
 991                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
 992                 return -1;
 993         }
 994
 995         mwifiex_set_ht_params(priv, bss_cfg, params);
 996
 997         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
 998                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
 999                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1000                 kfree(bss_cfg);
1001                 return -1;
1002         }
1003
1004         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1005                                    HostCmd_ACT_GEN_SET,
1006                                    UAP_BSS_PARAMS_I, bss_cfg)) {
1007                 wiphy_err(wiphy, "Failed to set the SSID\n");
1008                 kfree(bss_cfg);
1009                 return -1;
1010         }
1011
1012         kfree(bss_cfg);
1013
1014         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1015                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
1016                 wiphy_err(wiphy, "Failed to start the BSS\n");
1017                 return -1;
1018         }
1019
1020         if (priv->sec_info.wep_enabled)
1021                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1022         else
1023                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1024
1025         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1026                                   HostCmd_ACT_GEN_SET, 0,
1027                                   &priv->curr_pkt_filter))
1028                 return -1;
1029
1030         return 0;
1031 }
1032
1033 /*
1034  * CFG802.11 operation handler for disconnection request.
1035  *
1036  * This function does not work when there is already a disconnection
1037  * procedure going on.
1038  */
1039 static int
1040 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1041                             u16 reason_code)
1042 {
1043         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1044
1045         if (mwifiex_deauthenticate(priv, NULL))
1046                 return -EFAULT;
1047
1048         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1049                 " reason code %d\n", priv->cfg_bssid, reason_code);
1050
1051         memset(priv->cfg_bssid, 0, ETH_ALEN);
1052
1053         return 0;
1054 }
1055
1056 /*
1057  * This function informs the CFG802.11 subsystem of a new IBSS.
1058  *
1059  * The following information are sent to the CFG802.11 subsystem
1060  * to register the new IBSS. If we do not register the new IBSS,
1061  * a kernel panic will result.
1062  *      - SSID
1063  *      - SSID length
1064  *      - BSSID
1065  *      - Channel
1066  */
1067 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1068 {
1069         struct ieee80211_channel *chan;
1070         struct mwifiex_bss_info bss_info;
1071         struct cfg80211_bss *bss;
1072         int ie_len;
1073         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1074         enum ieee80211_band band;
1075
1076         if (mwifiex_get_bss_info(priv, &bss_info))
1077                 return -1;
1078
1079         ie_buf[0] = WLAN_EID_SSID;
1080         ie_buf[1] = bss_info.ssid.ssid_len;
1081
1082         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1083                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1084         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1085
1086         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1087         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1088                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1089                                                        band));
1090
1091         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1092                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1093                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1094         cfg80211_put_bss(bss);
1095         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1096
1097         return 0;
1098 }
1099
1100 /*
1101  * This function connects with a BSS.
1102  *
1103  * This function handles both Infra and Ad-Hoc modes. It also performs
1104  * validity checking on the provided parameters, disconnects from the
1105  * current BSS (if any), sets up the association/scan parameters,
1106  * including security settings, and performs specific SSID scan before
1107  * trying to connect.
1108  *
1109  * For Infra mode, the function returns failure if the specified SSID
1110  * is not found in scan table. However, for Ad-Hoc mode, it can create
1111  * the IBSS if it does not exist. On successful completion in either case,
1112  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1113  */
1114 static int
1115 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1116                        u8 *bssid, int mode, struct ieee80211_channel *channel,
1117                        struct cfg80211_connect_params *sme, bool privacy)
1118 {
1119         struct cfg80211_ssid req_ssid;
1120         int ret, auth_type = 0;
1121         struct cfg80211_bss *bss = NULL;
1122         u8 is_scanning_required = 0, config_bands = 0;
1123
1124         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1125
1126         req_ssid.ssid_len = ssid_len;
1127         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1128                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1129                 return -EINVAL;
1130         }
1131
1132         memcpy(req_ssid.ssid, ssid, ssid_len);
1133         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1134                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1135                 return -EINVAL;
1136         }
1137
1138         /* disconnect before try to associate */
1139         mwifiex_deauthenticate(priv, NULL);
1140
1141         if (channel) {
1142                 if (mode == NL80211_IFTYPE_STATION) {
1143                         if (channel->band == IEEE80211_BAND_2GHZ)
1144                                 config_bands = BAND_B | BAND_G | BAND_GN;
1145                         else
1146                                 config_bands = BAND_A | BAND_AN;
1147
1148                         if (!((config_bands | priv->adapter->fw_bands) &
1149                               ~priv->adapter->fw_bands))
1150                                 priv->adapter->config_bands = config_bands;
1151                 }
1152                 mwifiex_send_domain_info_cmd_fw(priv->wdev->wiphy);
1153         }
1154
1155         /* As this is new association, clear locally stored
1156          * keys and security related flags */
1157         priv->sec_info.wpa_enabled = false;
1158         priv->sec_info.wpa2_enabled = false;
1159         priv->wep_key_curr_index = 0;
1160         priv->sec_info.encryption_mode = 0;
1161         priv->sec_info.is_authtype_auto = 0;
1162         ret = mwifiex_set_encode(priv, NULL, 0, 0, NULL, 1);
1163
1164         if (mode == NL80211_IFTYPE_ADHOC) {
1165                 /* "privacy" is set only for ad-hoc mode */
1166                 if (privacy) {
1167                         /*
1168                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1169                          * the firmware can find a matching network from the
1170                          * scan. The cfg80211 does not give us the encryption
1171                          * mode at this stage so just setting it to WEP here.
1172                          */
1173                         priv->sec_info.encryption_mode =
1174                                         WLAN_CIPHER_SUITE_WEP104;
1175                         priv->sec_info.authentication_mode =
1176                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1177                 }
1178
1179                 goto done;
1180         }
1181
1182         /* Now handle infra mode. "sme" is valid for infra mode only */
1183         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1184                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1185                 priv->sec_info.is_authtype_auto = 1;
1186         } else {
1187                 auth_type = sme->auth_type;
1188         }
1189
1190         if (sme->crypto.n_ciphers_pairwise) {
1191                 priv->sec_info.encryption_mode =
1192                                                 sme->crypto.ciphers_pairwise[0];
1193                 priv->sec_info.authentication_mode = auth_type;
1194         }
1195
1196         if (sme->crypto.cipher_group) {
1197                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1198                 priv->sec_info.authentication_mode = auth_type;
1199         }
1200         if (sme->ie)
1201                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1202
1203         if (sme->key) {
1204                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1205                         dev_dbg(priv->adapter->dev,
1206                                 "info: setting wep encryption"
1207                                 " with key len %d\n", sme->key_len);
1208                         priv->wep_key_curr_index = sme->key_idx;
1209                         ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
1210                                                  sme->key_idx, NULL, 0);
1211                 }
1212         }
1213 done:
1214         /*
1215          * Scan entries are valid for some time (15 sec). So we can save one
1216          * active scan time if we just try cfg80211_get_bss first. If it fails
1217          * then request scan and cfg80211_get_bss() again for final output.
1218          */
1219         while (1) {
1220                 if (is_scanning_required) {
1221                         /* Do specific SSID scanning */
1222                         if (mwifiex_request_scan(priv, &req_ssid)) {
1223                                 dev_err(priv->adapter->dev, "scan error\n");
1224                                 return -EFAULT;
1225                         }
1226                 }
1227
1228                 /* Find the BSS we want using available scan results */
1229                 if (mode == NL80211_IFTYPE_ADHOC)
1230                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1231                                                bssid, ssid, ssid_len,
1232                                                WLAN_CAPABILITY_IBSS,
1233                                                WLAN_CAPABILITY_IBSS);
1234                 else
1235                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1236                                                bssid, ssid, ssid_len,
1237                                                WLAN_CAPABILITY_ESS,
1238                                                WLAN_CAPABILITY_ESS);
1239
1240                 if (!bss) {
1241                         if (is_scanning_required) {
1242                                 dev_warn(priv->adapter->dev,
1243                                          "assoc: requested bss not found in scan results\n");
1244                                 break;
1245                         }
1246                         is_scanning_required = 1;
1247                 } else {
1248                         dev_dbg(priv->adapter->dev,
1249                                 "info: trying to associate to '%s' bssid %pM\n",
1250                                 (char *) req_ssid.ssid, bss->bssid);
1251                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1252                         break;
1253                 }
1254         }
1255
1256         if (mwifiex_bss_start(priv, bss, &req_ssid))
1257                 return -EFAULT;
1258
1259         if (mode == NL80211_IFTYPE_ADHOC) {
1260                 /* Inform the BSS information to kernel, otherwise
1261                  * kernel will give a panic after successful assoc */
1262                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1263                         return -EFAULT;
1264         }
1265
1266         return ret;
1267 }
1268
1269 /*
1270  * CFG802.11 operation handler for association request.
1271  *
1272  * This function does not work when the current mode is set to Ad-Hoc, or
1273  * when there is already an association procedure going on. The given BSS
1274  * information is used to associate.
1275  */
1276 static int
1277 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1278                          struct cfg80211_connect_params *sme)
1279 {
1280         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1281         int ret = 0;
1282
1283         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1284                 wiphy_err(wiphy, "received infra assoc request "
1285                                 "when station is in ibss mode\n");
1286                 goto done;
1287         }
1288
1289         if (priv->bss_mode == NL80211_IFTYPE_AP) {
1290                 wiphy_err(wiphy, "skip association request for AP interface\n");
1291                 goto done;
1292         }
1293
1294         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1295                   (char *) sme->ssid, sme->bssid);
1296
1297         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1298                                      priv->bss_mode, sme->channel, sme, 0);
1299 done:
1300         if (!ret) {
1301                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1302                                         NULL, 0, WLAN_STATUS_SUCCESS,
1303                                         GFP_KERNEL);
1304                 dev_dbg(priv->adapter->dev,
1305                         "info: associated to bssid %pM successfully\n",
1306                         priv->cfg_bssid);
1307         } else {
1308                 dev_dbg(priv->adapter->dev,
1309                         "info: association to bssid %pM failed\n",
1310                         priv->cfg_bssid);
1311                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1312         }
1313
1314         return ret;
1315 }
1316
1317 /*
1318  * This function sets following parameters for ibss network.
1319  *  -  channel
1320  *  -  start band
1321  *  -  11n flag
1322  *  -  secondary channel offset
1323  */
1324 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1325                                    struct cfg80211_ibss_params *params)
1326 {
1327         struct wiphy *wiphy = priv->wdev->wiphy;
1328         struct mwifiex_adapter *adapter = priv->adapter;
1329         int index = 0, i;
1330         u8 config_bands = 0;
1331
1332         if (params->channel->band == IEEE80211_BAND_2GHZ) {
1333                 if (!params->basic_rates) {
1334                         config_bands = BAND_B | BAND_G;
1335                 } else {
1336                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1337                                 /*
1338                                  * Rates below 6 Mbps in the table are CCK
1339                                  * rates; 802.11b and from 6 they are OFDM;
1340                                  * 802.11G
1341                                  */
1342                                 if (mwifiex_rates[i].bitrate == 60) {
1343                                         index = 1 << i;
1344                                         break;
1345                                 }
1346                         }
1347
1348                         if (params->basic_rates < index) {
1349                                 config_bands = BAND_B;
1350                         } else {
1351                                 config_bands = BAND_G;
1352                                 if (params->basic_rates % index)
1353                                         config_bands |= BAND_B;
1354                         }
1355                 }
1356
1357                 if (params->channel_type != NL80211_CHAN_NO_HT)
1358                         config_bands |= BAND_GN;
1359         } else {
1360                 if (params->channel_type == NL80211_CHAN_NO_HT)
1361                         config_bands = BAND_A;
1362                 else
1363                         config_bands = BAND_AN | BAND_A;
1364         }
1365
1366         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1367                 adapter->config_bands = config_bands;
1368                 adapter->adhoc_start_band = config_bands;
1369
1370                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1371                         adapter->adhoc_11n_enabled = true;
1372                 else
1373                         adapter->adhoc_11n_enabled = false;
1374         }
1375
1376         adapter->sec_chan_offset =
1377                 mwifiex_chan_type_to_sec_chan_offset(params->channel_type);
1378         priv->adhoc_channel =
1379                 ieee80211_frequency_to_channel(params->channel->center_freq);
1380
1381         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1382                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1383
1384         return 0;
1385 }
1386
1387 /*
1388  * CFG802.11 operation handler to join an IBSS.
1389  *
1390  * This function does not work in any mode other than Ad-Hoc, or if
1391  * a join operation is already in progress.
1392  */
1393 static int
1394 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1395                            struct cfg80211_ibss_params *params)
1396 {
1397         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1398         int ret = 0;
1399
1400         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1401                 wiphy_err(wiphy, "request to join ibss received "
1402                                 "when station is not in ibss mode\n");
1403                 goto done;
1404         }
1405
1406         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1407                   (char *) params->ssid, params->bssid);
1408
1409         mwifiex_set_ibss_params(priv, params);
1410
1411         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1412                                      params->bssid, priv->bss_mode,
1413                                      params->channel, NULL, params->privacy);
1414 done:
1415         if (!ret) {
1416                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1417                 dev_dbg(priv->adapter->dev,
1418                         "info: joined/created adhoc network with bssid"
1419                         " %pM successfully\n", priv->cfg_bssid);
1420         } else {
1421                 dev_dbg(priv->adapter->dev,
1422                         "info: failed creating/joining adhoc network\n");
1423         }
1424
1425         return ret;
1426 }
1427
1428 /*
1429  * CFG802.11 operation handler to leave an IBSS.
1430  *
1431  * This function does not work if a leave operation is
1432  * already in progress.
1433  */
1434 static int
1435 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1436 {
1437         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1438
1439         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1440                   priv->cfg_bssid);
1441         if (mwifiex_deauthenticate(priv, NULL))
1442                 return -EFAULT;
1443
1444         memset(priv->cfg_bssid, 0, ETH_ALEN);
1445
1446         return 0;
1447 }
1448
1449 /*
1450  * CFG802.11 operation handler for scan request.
1451  *
1452  * This function issues a scan request to the firmware based upon
1453  * the user specified scan configuration. On successfull completion,
1454  * it also informs the results.
1455  */
1456 static int
1457 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1458                       struct cfg80211_scan_request *request)
1459 {
1460         struct net_device *dev = request->wdev->netdev;
1461         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1462         int i;
1463         struct ieee80211_channel *chan;
1464
1465         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1466
1467         priv->scan_request = request;
1468
1469         priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1470                                       GFP_KERNEL);
1471         if (!priv->user_scan_cfg) {
1472                 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1473                 return -ENOMEM;
1474         }
1475
1476         priv->user_scan_cfg->num_ssids = request->n_ssids;
1477         priv->user_scan_cfg->ssid_list = request->ssids;
1478
1479         if (request->ie && request->ie_len) {
1480                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1481                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1482                                 continue;
1483                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1484                         memcpy(&priv->vs_ie[i].ie, request->ie,
1485                                request->ie_len);
1486                         break;
1487                 }
1488         }
1489
1490         for (i = 0; i < request->n_channels; i++) {
1491                 chan = request->channels[i];
1492                 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1493                 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1494
1495                 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1496                         priv->user_scan_cfg->chan_list[i].scan_type =
1497                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1498                 else
1499                         priv->user_scan_cfg->chan_list[i].scan_type =
1500                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1501
1502                 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1503         }
1504         if (mwifiex_scan_networks(priv, priv->user_scan_cfg))
1505                 return -EFAULT;
1506
1507         if (request->ie && request->ie_len) {
1508                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1509                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1510                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1511                                 memset(&priv->vs_ie[i].ie, 0,
1512                                        MWIFIEX_MAX_VSIE_LEN);
1513                         }
1514                 }
1515         }
1516         return 0;
1517 }
1518
1519 /*
1520  * This function sets up the CFG802.11 specific HT capability fields
1521  * with default values.
1522  *
1523  * The following default values are set -
1524  *      - HT Supported = True
1525  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1526  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1527  *      - HT Capabilities supported by firmware
1528  *      - MCS information, Rx mask = 0xff
1529  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1530  */
1531 static void
1532 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1533                       struct mwifiex_private *priv)
1534 {
1535         int rx_mcs_supp;
1536         struct ieee80211_mcs_info mcs_set;
1537         u8 *mcs = (u8 *)&mcs_set;
1538         struct mwifiex_adapter *adapter = priv->adapter;
1539
1540         ht_info->ht_supported = true;
1541         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1542         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1543
1544         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1545
1546         /* Fill HT capability information */
1547         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1548                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1549         else
1550                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1551
1552         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1553                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1554         else
1555                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1556
1557         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1558                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1559         else
1560                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1561
1562         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1563                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1564         else
1565                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1566
1567         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1568                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1569         else
1570                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1571
1572         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1573         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1574
1575         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1576         /* Set MCS for 1x1 */
1577         memset(mcs, 0xff, rx_mcs_supp);
1578         /* Clear all the other values */
1579         memset(&mcs[rx_mcs_supp], 0,
1580                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1581         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1582             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1583                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1584                 SETHT_MCS32(mcs_set.rx_mask);
1585
1586         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1587
1588         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1589 }
1590
1591 /*
1592  *  create a new virtual interface with the given name
1593  */
1594 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1595                                               char *name,
1596                                               enum nl80211_iftype type,
1597                                               u32 *flags,
1598                                               struct vif_params *params)
1599 {
1600         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1601         struct mwifiex_private *priv;
1602         struct net_device *dev;
1603         void *mdev_priv;
1604         struct wireless_dev *wdev;
1605
1606         if (!adapter)
1607                 return ERR_PTR(-EFAULT);
1608
1609         switch (type) {
1610         case NL80211_IFTYPE_UNSPECIFIED:
1611         case NL80211_IFTYPE_STATION:
1612         case NL80211_IFTYPE_ADHOC:
1613                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1614                 if (priv->bss_mode) {
1615                         wiphy_err(wiphy,
1616                                   "cannot create multiple sta/adhoc ifaces\n");
1617                         return ERR_PTR(-EINVAL);
1618                 }
1619
1620                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1621                 if (!wdev)
1622                         return ERR_PTR(-ENOMEM);
1623
1624                 wdev->wiphy = wiphy;
1625                 priv->wdev = wdev;
1626                 wdev->iftype = NL80211_IFTYPE_STATION;
1627
1628                 if (type == NL80211_IFTYPE_UNSPECIFIED)
1629                         priv->bss_mode = NL80211_IFTYPE_STATION;
1630                 else
1631                         priv->bss_mode = type;
1632
1633                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
1634                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1635                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
1636                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
1637                 priv->bss_num = 0;
1638
1639                 break;
1640         case NL80211_IFTYPE_AP:
1641                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
1642
1643                 if (priv->bss_mode) {
1644                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
1645                         return ERR_PTR(-EINVAL);
1646                 }
1647
1648                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1649                 if (!wdev)
1650                         return ERR_PTR(-ENOMEM);
1651
1652                 priv->wdev = wdev;
1653                 wdev->wiphy = wiphy;
1654                 wdev->iftype = NL80211_IFTYPE_AP;
1655
1656                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
1657                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1658                 priv->bss_priority = MWIFIEX_BSS_ROLE_UAP;
1659                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
1660                 priv->bss_started = 0;
1661                 priv->bss_num = 0;
1662                 priv->bss_mode = type;
1663
1664                 break;
1665         default:
1666                 wiphy_err(wiphy, "type not supported\n");
1667                 return ERR_PTR(-EINVAL);
1668         }
1669
1670         dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
1671                               ether_setup, 1);
1672         if (!dev) {
1673                 wiphy_err(wiphy, "no memory available for netdevice\n");
1674                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1675                 return ERR_PTR(-ENOMEM);
1676         }
1677
1678         mwifiex_init_priv_params(priv, dev);
1679         priv->netdev = dev;
1680
1681         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
1682
1683         if (adapter->config_bands & BAND_A)
1684                 mwifiex_setup_ht_caps(
1685                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
1686
1687         dev_net_set(dev, wiphy_net(wiphy));
1688         dev->ieee80211_ptr = priv->wdev;
1689         dev->ieee80211_ptr->iftype = priv->bss_mode;
1690         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
1691         memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
1692         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
1693
1694         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1695         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1696         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1697
1698         mdev_priv = netdev_priv(dev);
1699         *((unsigned long *) mdev_priv) = (unsigned long) priv;
1700
1701         SET_NETDEV_DEV(dev, adapter->dev);
1702
1703         /* Register network device */
1704         if (register_netdevice(dev)) {
1705                 wiphy_err(wiphy, "cannot register virtual network device\n");
1706                 free_netdev(dev);
1707                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1708                 return ERR_PTR(-EFAULT);
1709         }
1710
1711         sema_init(&priv->async_sem, 1);
1712         priv->scan_pending_on_block = false;
1713
1714         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
1715
1716 #ifdef CONFIG_DEBUG_FS
1717         mwifiex_dev_debugfs_init(priv);
1718 #endif
1719         return wdev;
1720 }
1721 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
1722
1723 /*
1724  * del_virtual_intf: remove the virtual interface determined by dev
1725  */
1726 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
1727 {
1728         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
1729
1730 #ifdef CONFIG_DEBUG_FS
1731         mwifiex_dev_debugfs_remove(priv);
1732 #endif
1733
1734         if (!netif_queue_stopped(priv->netdev))
1735                 netif_stop_queue(priv->netdev);
1736
1737         if (netif_carrier_ok(priv->netdev))
1738                 netif_carrier_off(priv->netdev);
1739
1740         if (wdev->netdev->reg_state == NETREG_REGISTERED)
1741                 unregister_netdevice(wdev->netdev);
1742
1743         if (wdev->netdev->reg_state == NETREG_UNREGISTERED)
1744                 free_netdev(wdev->netdev);
1745
1746         /* Clear the priv in adapter */
1747         priv->netdev = NULL;
1748
1749         priv->media_connected = false;
1750
1751         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1752
1753         return 0;
1754 }
1755 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
1756
1757 /* station cfg80211 operations */
1758 static struct cfg80211_ops mwifiex_cfg80211_ops = {
1759         .add_virtual_intf = mwifiex_add_virtual_intf,
1760         .del_virtual_intf = mwifiex_del_virtual_intf,
1761         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1762         .scan = mwifiex_cfg80211_scan,
1763         .connect = mwifiex_cfg80211_connect,
1764         .disconnect = mwifiex_cfg80211_disconnect,
1765         .get_station = mwifiex_cfg80211_get_station,
1766         .dump_station = mwifiex_cfg80211_dump_station,
1767         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1768         .join_ibss = mwifiex_cfg80211_join_ibss,
1769         .leave_ibss = mwifiex_cfg80211_leave_ibss,
1770         .add_key = mwifiex_cfg80211_add_key,
1771         .del_key = mwifiex_cfg80211_del_key,
1772         .set_default_key = mwifiex_cfg80211_set_default_key,
1773         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1774         .set_tx_power = mwifiex_cfg80211_set_tx_power,
1775         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
1776         .start_ap = mwifiex_cfg80211_start_ap,
1777         .stop_ap = mwifiex_cfg80211_stop_ap,
1778         .change_beacon = mwifiex_cfg80211_change_beacon,
1779         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
1780         .set_antenna = mwifiex_cfg80211_set_antenna,
1781 };
1782
1783 /*
1784  * This function registers the device with CFG802.11 subsystem.
1785  *
1786  * The function creates the wireless device/wiphy, populates it with
1787  * default parameters and handler function pointers, and finally
1788  * registers the device.
1789  */
1790
1791 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
1792 {
1793         int ret;
1794         void *wdev_priv;
1795         struct wiphy *wiphy;
1796         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1797         u8 *country_code;
1798
1799         /* create a new wiphy for use with cfg80211 */
1800         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
1801                           sizeof(struct mwifiex_adapter *));
1802         if (!wiphy) {
1803                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
1804                 return -ENOMEM;
1805         }
1806         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
1807         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
1808         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1809                                  BIT(NL80211_IFTYPE_ADHOC) |
1810                                  BIT(NL80211_IFTYPE_AP);
1811
1812         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1813         if (adapter->config_bands & BAND_A)
1814                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1815         else
1816                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1817
1818         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
1819         wiphy->n_iface_combinations = 1;
1820
1821         /* Initialize cipher suits */
1822         wiphy->cipher_suites = mwifiex_cipher_suites;
1823         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1824
1825         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
1826         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1827         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1828                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1829
1830         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1831                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;
1832
1833         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
1834         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
1835
1836         wiphy->features = NL80211_FEATURE_HT_IBSS;
1837
1838         /* Reserve space for mwifiex specific private data for BSS */
1839         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
1840
1841         wiphy->reg_notifier = mwifiex_reg_notifier;
1842
1843         /* Set struct mwifiex_adapter pointer in wiphy_priv */
1844         wdev_priv = wiphy_priv(wiphy);
1845         *(unsigned long *)wdev_priv = (unsigned long)adapter;
1846
1847         set_wiphy_dev(wiphy, priv->adapter->dev);
1848
1849         ret = wiphy_register(wiphy);
1850         if (ret < 0) {
1851                 dev_err(adapter->dev,
1852                         "%s: wiphy_register failed: %d\n", __func__, ret);
1853                 wiphy_free(wiphy);
1854                 return ret;
1855         }
1856         country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
1857         if (country_code && regulatory_hint(wiphy, country_code))
1858                 dev_err(adapter->dev, "regulatory_hint() failed\n");
1859
1860         adapter->wiphy = wiphy;
1861         return ret;
1862 }