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_regdomain mwifiex_world_regdom_custom = {
  24         .n_reg_rules = 7,
  25         .alpha2 =  "99",
  26         .reg_rules = {
  27                 /* Channel 1 - 11 */
  28                 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
  29                 /* Channel 12 - 13 */
  30                 REG_RULE(2467-10, 2472+10, 20, 3, 20,
  31                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
  32                 /* Channel 14 */
  33                 REG_RULE(2484-10, 2484+10, 20, 3, 20,
  34                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
  35                          NL80211_RRF_NO_OFDM),
  36                 /* Channel 36 - 48 */
  37                 REG_RULE(5180-10, 5240+10, 40, 3, 20,
  38                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
  39                 /* Channel 149 - 165 */
  40                 REG_RULE(5745-10, 5825+10, 40, 3, 20,
  41                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
  42                 /* Channel 52 - 64 */
  43                 REG_RULE(5260-10, 5320+10, 40, 3, 30,
  44                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
  45                          NL80211_RRF_DFS),
  46                 /* Channel 100 - 140 */
  47                 REG_RULE(5500-10, 5700+10, 40, 3, 30,
  48                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
  49                          NL80211_RRF_DFS),
  50         }
  51 };
  52
  53 /*
  54  * This function maps the nl802.11 channel type into driver channel type.
  55  *
  56  * The mapping is as follows -
  57  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  58  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  59  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  60  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  61  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  62  */
  63 static u8
  64 mwifiex_cfg80211_channel_type_to_sec_chan_offset(enum nl80211_channel_type
  65                                                  channel_type)
  66 {
  67         switch (channel_type) {
  68         case NL80211_CHAN_NO_HT:
  69         case NL80211_CHAN_HT20:
  70                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  71         case NL80211_CHAN_HT40PLUS:
  72                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  73         case NL80211_CHAN_HT40MINUS:
  74                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  75         default:
  76                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  77         }
  78 }
  79
  80 /*
  81  * This function checks whether WEP is set.
  82  */
  83 static int
  84 mwifiex_is_alg_wep(u32 cipher)
  85 {
  86         switch (cipher) {
  87         case WLAN_CIPHER_SUITE_WEP40:
  88         case WLAN_CIPHER_SUITE_WEP104:
  89                 return 1;
  90         default:
  91                 break;
  92         }
  93
  94         return 0;
  95 }
  96
  97 /*
  98  * This function retrieves the private structure from kernel wiphy structure.
  99  */
 100 static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
 101 {
 102         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 103 }
 104
 105 /*
 106  * CFG802.11 operation handler to delete a network key.
 107  */
 108 static int
 109 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 110                          u8 key_index, bool pairwise, const u8 *mac_addr)
 111 {
 112         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 113
 114         if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
 115                 wiphy_err(wiphy, "deleting the crypto keys\n");
 116                 return -EFAULT;
 117         }
 118
 119         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 120         return 0;
 121 }
 122
 123 /*
 124  * This function forms an skb for management frame.
 125  */
 126 static int
 127 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 128 {
 129         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 130         u16 pkt_len;
 131         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 132         struct timeval tv;
 133
 134         pkt_len = len + ETH_ALEN;
 135
 136         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 137                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 138         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 139
 140         memcpy(skb_push(skb, sizeof(tx_control)),
 141                &tx_control, sizeof(tx_control));
 142
 143         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 144
 145         /* Add packet data and address4 */
 146         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 147                sizeof(struct ieee80211_hdr_3addr));
 148         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 149         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 150                buf + sizeof(struct ieee80211_hdr_3addr),
 151                len - sizeof(struct ieee80211_hdr_3addr));
 152
 153         skb->priority = LOW_PRIO_TID;
 154         do_gettimeofday(&tv);
 155         skb->tstamp = timeval_to_ktime(tv);
 156
 157         return 0;
 158 }
 159
 160 /*
 161  * CFG802.11 operation handler to transmit a management frame.
 162  */
 163 static int
 164 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
 165                          struct ieee80211_channel *chan, bool offchan,
 166                          enum nl80211_channel_type channel_type,
 167                          bool channel_type_valid, unsigned int wait,
 168                          const u8 *buf, size_t len, bool no_cck,
 169                          bool dont_wait_for_ack, u64 *cookie)
 170 {
 171         struct sk_buff *skb;
 172         u16 pkt_len;
 173         const struct ieee80211_mgmt *mgmt;
 174         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 175
 176         if (!buf || !len) {
 177                 wiphy_err(wiphy, "invalid buffer and length\n");
 178                 return -EFAULT;
 179         }
 180
 181         mgmt = (const struct ieee80211_mgmt *)buf;
 182         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 183             ieee80211_is_probe_resp(mgmt->frame_control)) {
 184                 /* Since we support offload probe resp, we need to skip probe
 185                  * resp in AP or GO mode */
 186                 wiphy_dbg(wiphy,
 187                           "info: skip to send probe resp in AP or GO mode\n");
 188                 return 0;
 189         }
 190
 191         pkt_len = len + ETH_ALEN;
 192         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 193                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 194                             pkt_len + sizeof(pkt_len));
 195
 196         if (!skb) {
 197                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 198                 return -ENOMEM;
 199         }
 200
 201         mwifiex_form_mgmt_frame(skb, buf, len);
 202         mwifiex_queue_tx_pkt(priv, skb);
 203
 204         *cookie = random32() | 1;
 205         cfg80211_mgmt_tx_status(dev, *cookie, buf, len, true, GFP_ATOMIC);
 206
 207         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 208         return 0;
 209 }
 210
 211 /*
 212  * CFG802.11 operation handler to register a mgmt frame.
 213  */
 214 static void
 215 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 216                                      struct net_device *dev,
 217                                      u16 frame_type, bool reg)
 218 {
 219         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 220
 221         if (reg)
 222                 priv->mgmt_frame_mask |= BIT(frame_type >> 4);
 223         else
 224                 priv->mgmt_frame_mask &= ~BIT(frame_type >> 4);
 225
 226         mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
 227                                HostCmd_ACT_GEN_SET, 0, &priv->mgmt_frame_mask);
 228
 229         wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 230 }
 231
 232 /*
 233  * CFG802.11 operation handler to set Tx power.
 234  */
 235 static int
 236 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 237                               enum nl80211_tx_power_setting type,
 238                               int mbm)
 239 {
 240         struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
 241         struct mwifiex_power_cfg power_cfg;
 242         int dbm = MBM_TO_DBM(mbm);
 243
 244         if (type == NL80211_TX_POWER_FIXED) {
 245                 power_cfg.is_power_auto = 0;
 246                 power_cfg.power_level = dbm;
 247         } else {
 248                 power_cfg.is_power_auto = 1;
 249         }
 250
 251         return mwifiex_set_tx_power(priv, &power_cfg);
 252 }
 253
 254 /*
 255  * CFG802.11 operation handler to set Power Save option.
 256  *
 257  * The timeout value, if provided, is currently ignored.
 258  */
 259 static int
 260 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 261                                 struct net_device *dev,
 262                                 bool enabled, int timeout)
 263 {
 264         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 265         u32 ps_mode;
 266
 267         if (timeout)
 268                 wiphy_dbg(wiphy,
 269                           "info: ignore timeout value for IEEE Power Save\n");
 270
 271         ps_mode = enabled;
 272
 273         return mwifiex_drv_set_power(priv, &ps_mode);
 274 }
 275
 276 /*
 277  * CFG802.11 operation handler to set the default network key.
 278  */
 279 static int
 280 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 281                                  u8 key_index, bool unicast,
 282                                  bool multicast)
 283 {
 284         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 285
 286         /* Return if WEP key not configured */
 287         if (!priv->sec_info.wep_enabled)
 288                 return 0;
 289
 290         if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) {
 291                 wiphy_err(wiphy, "set default Tx key index\n");
 292                 return -EFAULT;
 293         }
 294
 295         return 0;
 296 }
 297
 298 /*
 299  * CFG802.11 operation handler to add a network key.
 300  */
 301 static int
 302 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 303                          u8 key_index, bool pairwise, const u8 *mac_addr,
 304                          struct key_params *params)
 305 {
 306         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 307
 308         if (mwifiex_set_encode(priv, params->key, params->key_len,
 309                                key_index, 0)) {
 310                 wiphy_err(wiphy, "crypto keys added\n");
 311                 return -EFAULT;
 312         }
 313
 314         return 0;
 315 }
 316
 317 /*
 318  * This function sends domain information to the firmware.
 319  *
 320  * The following information are passed to the firmware -
 321  *      - Country codes
 322  *      - Sub bands (first channel, number of channels, maximum Tx power)
 323  */
 324 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 325 {
 326         u8 no_of_triplet = 0;
 327         struct ieee80211_country_ie_triplet *t;
 328         u8 no_of_parsed_chan = 0;
 329         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 330         u8 i, flag = 0;
 331         enum ieee80211_band band;
 332         struct ieee80211_supported_band *sband;
 333         struct ieee80211_channel *ch;
 334         struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
 335         struct mwifiex_adapter *adapter = priv->adapter;
 336         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 337
 338         /* Set country code */
 339         domain_info->country_code[0] = priv->country_code[0];
 340         domain_info->country_code[1] = priv->country_code[1];
 341         domain_info->country_code[2] = ' ';
 342
 343         band = mwifiex_band_to_radio_type(adapter->config_bands);
 344         if (!wiphy->bands[band]) {
 345                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 346                 return -1;
 347         }
 348
 349         sband = wiphy->bands[band];
 350
 351         for (i = 0; i < sband->n_channels ; i++) {
 352                 ch = &sband->channels[i];
 353                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 354                         continue;
 355
 356                 if (!flag) {
 357                         flag = 1;
 358                         first_chan = (u32) ch->hw_value;
 359                         next_chan = first_chan;
 360                         max_pwr = ch->max_power;
 361                         no_of_parsed_chan = 1;
 362                         continue;
 363                 }
 364
 365                 if (ch->hw_value == next_chan + 1 &&
 366                     ch->max_power == max_pwr) {
 367                         next_chan++;
 368                         no_of_parsed_chan++;
 369                 } else {
 370                         t = &domain_info->triplet[no_of_triplet];
 371                         t->chans.first_channel = first_chan;
 372                         t->chans.num_channels = no_of_parsed_chan;
 373                         t->chans.max_power = max_pwr;
 374                         no_of_triplet++;
 375                         first_chan = (u32) ch->hw_value;
 376                         next_chan = first_chan;
 377                         max_pwr = ch->max_power;
 378                         no_of_parsed_chan = 1;
 379                 }
 380         }
 381
 382         if (flag) {
 383                 t = &domain_info->triplet[no_of_triplet];
 384                 t->chans.first_channel = first_chan;
 385                 t->chans.num_channels = no_of_parsed_chan;
 386                 t->chans.max_power = max_pwr;
 387                 no_of_triplet++;
 388         }
 389
 390         domain_info->no_of_triplet = no_of_triplet;
 391
 392         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 393                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 394                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 395                 return -1;
 396         }
 397
 398         return 0;
 399 }
 400
 401 /*
 402  * CFG802.11 regulatory domain callback function.
 403  *
 404  * This function is called when the regulatory domain is changed due to the
 405  * following reasons -
 406  *      - Set by driver
 407  *      - Set by system core
 408  *      - Set by user
 409  *      - Set bt Country IE
 410  */
 411 static int mwifiex_reg_notifier(struct wiphy *wiphy,
 412                                 struct regulatory_request *request)
 413 {
 414         struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
 415
 416         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
 417                         " %c%c\n", request->alpha2[0], request->alpha2[1]);
 418
 419         memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
 420
 421         switch (request->initiator) {
 422         case NL80211_REGDOM_SET_BY_DRIVER:
 423         case NL80211_REGDOM_SET_BY_CORE:
 424         case NL80211_REGDOM_SET_BY_USER:
 425                 break;
 426                 /* Todo: apply driver specific changes in channel flags based
 427                    on the request initiator if necessary. */
 428         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 429                 break;
 430         }
 431         mwifiex_send_domain_info_cmd_fw(wiphy);
 432
 433         return 0;
 434 }
 435
 436 /*
 437  * This function sets the RF channel.
 438  *
 439  * This function creates multiple IOCTL requests, populates them accordingly
 440  * and issues them to set the band/channel and frequency.
 441  */
 442 static int
 443 mwifiex_set_rf_channel(struct mwifiex_private *priv,
 444                        struct ieee80211_channel *chan,
 445                        enum nl80211_channel_type channel_type)
 446 {
 447         struct mwifiex_chan_freq_power cfp;
 448         u32 config_bands = 0;
 449         struct wiphy *wiphy = priv->wdev->wiphy;
 450         struct mwifiex_adapter *adapter = priv->adapter;
 451
 452         if (chan) {
 453                 /* Set appropriate bands */
 454                 if (chan->band == IEEE80211_BAND_2GHZ) {
 455                         if (channel_type == NL80211_CHAN_NO_HT)
 456                                 if (priv->adapter->config_bands == BAND_B ||
 457                                     priv->adapter->config_bands == BAND_G)
 458                                         config_bands =
 459                                                 priv->adapter->config_bands;
 460                                 else
 461                                         config_bands = BAND_B | BAND_G;
 462                         else
 463                                 config_bands = BAND_B | BAND_G | BAND_GN;
 464                 } else {
 465                         if (channel_type == NL80211_CHAN_NO_HT)
 466                                 config_bands = BAND_A;
 467                         else
 468                                 config_bands = BAND_AN | BAND_A;
 469                 }
 470
 471                 if (!((config_bands | adapter->fw_bands) &
 472                                                 ~adapter->fw_bands)) {
 473                         adapter->config_bands = config_bands;
 474                         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 475                                 adapter->adhoc_start_band = config_bands;
 476                                 if ((config_bands & BAND_GN) ||
 477                                     (config_bands & BAND_AN))
 478                                         adapter->adhoc_11n_enabled = true;
 479                                 else
 480                                         adapter->adhoc_11n_enabled = false;
 481                         }
 482                 }
 483                 adapter->sec_chan_offset =
 484                         mwifiex_cfg80211_channel_type_to_sec_chan_offset
 485                         (channel_type);
 486                 adapter->channel_type = channel_type;
 487         }
 488
 489         wiphy_dbg(wiphy, "info: setting band %d, chan offset %d, mode %d\n",
 490                   config_bands, adapter->sec_chan_offset, priv->bss_mode);
 491         if (!chan)
 492                 return 0;
 493
 494         memset(&cfp, 0, sizeof(cfp));
 495         cfp.freq = chan->center_freq;
 496         cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
 497
 498         if (mwifiex_bss_set_channel(priv, &cfp))
 499                 return -EFAULT;
 500
 501         return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
 502 }
 503
 504 /*
 505  * CFG802.11 operation handler to set channel.
 506  *
 507  * This function can only be used when station is not connected.
 508  */
 509 static int
 510 mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
 511                              struct ieee80211_channel *chan,
 512                              enum nl80211_channel_type channel_type)
 513 {
 514         struct mwifiex_private *priv;
 515
 516         if (dev)
 517                 priv = mwifiex_netdev_get_priv(dev);
 518         else
 519                 priv = mwifiex_cfg80211_get_priv(wiphy);
 520
 521         if (priv->media_connected) {
 522                 wiphy_err(wiphy, "This setting is valid only when station "
 523                                 "is not connected\n");
 524                 return -EINVAL;
 525         }
 526
 527         return mwifiex_set_rf_channel(priv, chan, channel_type);
 528 }
 529
 530 /*
 531  * This function sets the fragmentation threshold.
 532  *
 533  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 534  * and MWIFIEX_FRAG_MAX_VALUE.
 535  */
 536 static int
 537 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 538 {
 539         int ret;
 540
 541         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 542             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 543                 return -EINVAL;
 544
 545         /* Send request to firmware */
 546         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 547                                     HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 548                                     &frag_thr);
 549
 550         return ret;
 551 }
 552
 553 /*
 554  * This function sets the RTS threshold.
 555
 556  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 557  * and MWIFIEX_RTS_MAX_VALUE.
 558  */
 559 static int
 560 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 561 {
 562         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 563                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 564
 565         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 566                                     HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 567                                     &rts_thr);
 568 }
 569
 570 /*
 571  * CFG802.11 operation handler to set wiphy parameters.
 572  *
 573  * This function can be used to set the RTS threshold and the
 574  * Fragmentation threshold of the driver.
 575  */
 576 static int
 577 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 578 {
 579         struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
 580         int ret = 0;
 581
 582         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 583                 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
 584                 if (ret)
 585                         return ret;
 586         }
 587
 588         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 589                 ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
 590
 591         return ret;
 592 }
 593
 594 /*
 595  * CFG802.11 operation handler to change interface type.
 596  */
 597 static int
 598 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 599                                      struct net_device *dev,
 600                                      enum nl80211_iftype type, u32 *flags,
 601                                      struct vif_params *params)
 602 {
 603         int ret;
 604         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 605
 606         if (priv->bss_mode == type) {
 607                 wiphy_warn(wiphy, "already set to required type\n");
 608                 return 0;
 609         }
 610
 611         priv->bss_mode = type;
 612
 613         switch (type) {
 614         case NL80211_IFTYPE_ADHOC:
 615                 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
 616                 wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
 617                 break;
 618         case NL80211_IFTYPE_STATION:
 619                 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
 620                 wiphy_dbg(wiphy, "info: setting interface type to managed\n");
 621                 break;
 622         case NL80211_IFTYPE_UNSPECIFIED:
 623                 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
 624                 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
 625                 return 0;
 626         default:
 627                 wiphy_err(wiphy, "unknown interface type: %d\n", type);
 628                 return -EINVAL;
 629         }
 630
 631         mwifiex_deauthenticate(priv, NULL);
 632
 633         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 634
 635         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
 636                                     HostCmd_ACT_GEN_SET, 0, NULL);
 637
 638         return ret;
 639 }
 640
 641 /*
 642  * This function dumps the station information on a buffer.
 643  *
 644  * The following information are shown -
 645  *      - Total bytes transmitted
 646  *      - Total bytes received
 647  *      - Total packets transmitted
 648  *      - Total packets received
 649  *      - Signal quality level
 650  *      - Transmission rate
 651  */
 652 static int
 653 mwifiex_dump_station_info(struct mwifiex_private *priv,
 654                           struct station_info *sinfo)
 655 {
 656         struct mwifiex_rate_cfg rate;
 657
 658         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 659                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 660                         STATION_INFO_TX_BITRATE |
 661                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 662
 663         /* Get signal information from the firmware */
 664         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 665                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 666                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 667                 return -EFAULT;
 668         }
 669
 670         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 671                 dev_err(priv->adapter->dev, "getting data rate\n");
 672                 return -EFAULT;
 673         }
 674
 675         /* Get DTIM period information from firmware */
 676         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 677                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 678                               &priv->dtim_period);
 679
 680         /*
 681          * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
 682          * MCS index values for us are 0 to 15.
 683          */
 684         if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 685                 sinfo->txrate.mcs = priv->tx_rate;
 686                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 687                 /* 40MHz rate */
 688                 if (priv->tx_htinfo & BIT(1))
 689                         sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 690                 /* SGI enabled */
 691                 if (priv->tx_htinfo & BIT(2))
 692                         sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 693         }
 694
 695         sinfo->signal_avg = priv->bcn_rssi_avg;
 696         sinfo->rx_bytes = priv->stats.rx_bytes;
 697         sinfo->tx_bytes = priv->stats.tx_bytes;
 698         sinfo->rx_packets = priv->stats.rx_packets;
 699         sinfo->tx_packets = priv->stats.tx_packets;
 700         sinfo->signal = priv->bcn_rssi_avg;
 701         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 702         sinfo->txrate.legacy = rate.rate * 5;
 703
 704         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 705                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 706                 sinfo->bss_param.flags = 0;
 707                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 708                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 709                         sinfo->bss_param.flags |=
 710                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 711                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 712                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 713                         sinfo->bss_param.flags |=
 714                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 715                 sinfo->bss_param.dtim_period = priv->dtim_period;
 716                 sinfo->bss_param.beacon_interval =
 717                         priv->curr_bss_params.bss_descriptor.beacon_period;
 718         }
 719
 720         return 0;
 721 }
 722
 723 /*
 724  * CFG802.11 operation handler to get station information.
 725  *
 726  * This function only works in connected mode, and dumps the
 727  * requested station information, if available.
 728  */
 729 static int
 730 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 731                              u8 *mac, struct station_info *sinfo)
 732 {
 733         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 734
 735         if (!priv->media_connected)
 736                 return -ENOENT;
 737         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 738                 return -ENOENT;
 739
 740         return mwifiex_dump_station_info(priv, sinfo);
 741 }
 742
 743 /*
 744  * CFG802.11 operation handler to dump station information.
 745  */
 746 static int
 747 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 748                               int idx, u8 *mac, struct station_info *sinfo)
 749 {
 750         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 751
 752         if (!priv->media_connected || idx)
 753                 return -ENOENT;
 754
 755         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 756
 757         return mwifiex_dump_station_info(priv, sinfo);
 758 }
 759
 760 /* Supported rates to be advertised to the cfg80211 */
 761
 762 static struct ieee80211_rate mwifiex_rates[] = {
 763         {.bitrate = 10, .hw_value = 2, },
 764         {.bitrate = 20, .hw_value = 4, },
 765         {.bitrate = 55, .hw_value = 11, },
 766         {.bitrate = 110, .hw_value = 22, },
 767         {.bitrate = 60, .hw_value = 12, },
 768         {.bitrate = 90, .hw_value = 18, },
 769         {.bitrate = 120, .hw_value = 24, },
 770         {.bitrate = 180, .hw_value = 36, },
 771         {.bitrate = 240, .hw_value = 48, },
 772         {.bitrate = 360, .hw_value = 72, },
 773         {.bitrate = 480, .hw_value = 96, },
 774         {.bitrate = 540, .hw_value = 108, },
 775 };
 776
 777 /* Channel definitions to be advertised to cfg80211 */
 778
 779 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
 780         {.center_freq = 2412, .hw_value = 1, },
 781         {.center_freq = 2417, .hw_value = 2, },
 782         {.center_freq = 2422, .hw_value = 3, },
 783         {.center_freq = 2427, .hw_value = 4, },
 784         {.center_freq = 2432, .hw_value = 5, },
 785         {.center_freq = 2437, .hw_value = 6, },
 786         {.center_freq = 2442, .hw_value = 7, },
 787         {.center_freq = 2447, .hw_value = 8, },
 788         {.center_freq = 2452, .hw_value = 9, },
 789         {.center_freq = 2457, .hw_value = 10, },
 790         {.center_freq = 2462, .hw_value = 11, },
 791         {.center_freq = 2467, .hw_value = 12, },
 792         {.center_freq = 2472, .hw_value = 13, },
 793         {.center_freq = 2484, .hw_value = 14, },
 794 };
 795
 796 static struct ieee80211_supported_band mwifiex_band_2ghz = {
 797         .channels = mwifiex_channels_2ghz,
 798         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
 799         .bitrates = mwifiex_rates,
 800         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
 801 };
 802
 803 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
 804         {.center_freq = 5040, .hw_value = 8, },
 805         {.center_freq = 5060, .hw_value = 12, },
 806         {.center_freq = 5080, .hw_value = 16, },
 807         {.center_freq = 5170, .hw_value = 34, },
 808         {.center_freq = 5190, .hw_value = 38, },
 809         {.center_freq = 5210, .hw_value = 42, },
 810         {.center_freq = 5230, .hw_value = 46, },
 811         {.center_freq = 5180, .hw_value = 36, },
 812         {.center_freq = 5200, .hw_value = 40, },
 813         {.center_freq = 5220, .hw_value = 44, },
 814         {.center_freq = 5240, .hw_value = 48, },
 815         {.center_freq = 5260, .hw_value = 52, },
 816         {.center_freq = 5280, .hw_value = 56, },
 817         {.center_freq = 5300, .hw_value = 60, },
 818         {.center_freq = 5320, .hw_value = 64, },
 819         {.center_freq = 5500, .hw_value = 100, },
 820         {.center_freq = 5520, .hw_value = 104, },
 821         {.center_freq = 5540, .hw_value = 108, },
 822         {.center_freq = 5560, .hw_value = 112, },
 823         {.center_freq = 5580, .hw_value = 116, },
 824         {.center_freq = 5600, .hw_value = 120, },
 825         {.center_freq = 5620, .hw_value = 124, },
 826         {.center_freq = 5640, .hw_value = 128, },
 827         {.center_freq = 5660, .hw_value = 132, },
 828         {.center_freq = 5680, .hw_value = 136, },
 829         {.center_freq = 5700, .hw_value = 140, },
 830         {.center_freq = 5745, .hw_value = 149, },
 831         {.center_freq = 5765, .hw_value = 153, },
 832         {.center_freq = 5785, .hw_value = 157, },
 833         {.center_freq = 5805, .hw_value = 161, },
 834         {.center_freq = 5825, .hw_value = 165, },
 835 };
 836
 837 static struct ieee80211_supported_band mwifiex_band_5ghz = {
 838         .channels = mwifiex_channels_5ghz,
 839         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
 840         .bitrates = mwifiex_rates + 4,
 841         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
 842 };
 843
 844
 845 /* Supported crypto cipher suits to be advertised to cfg80211 */
 846
 847 static const u32 mwifiex_cipher_suites[] = {
 848         WLAN_CIPHER_SUITE_WEP40,
 849         WLAN_CIPHER_SUITE_WEP104,
 850         WLAN_CIPHER_SUITE_TKIP,
 851         WLAN_CIPHER_SUITE_CCMP,
 852 };
 853
 854 /* Supported mgmt frame types to be advertised to cfg80211 */
 855 static const struct ieee80211_txrx_stypes
 856 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
 857         [NL80211_IFTYPE_STATION] = {
 858                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 859                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
 860                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 861                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
 862         },
 863         [NL80211_IFTYPE_AP] = {
 864                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 865                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
 866                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 867                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
 868         },
 869         [NL80211_IFTYPE_P2P_CLIENT] = {
 870                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 871                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
 872                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 873                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
 874         },
 875         [NL80211_IFTYPE_P2P_GO] = {
 876                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 877                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
 878                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 879                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
 880         },
 881 };
 882
 883 /*
 884  * CFG802.11 operation handler for setting bit rates.
 885  *
 886  * Function configures data rates to firmware using bitrate mask
 887  * provided by cfg80211.
 888  */
 889 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
 890                                 struct net_device *dev,
 891                                 const u8 *peer,
 892                                 const struct cfg80211_bitrate_mask *mask)
 893 {
 894         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 895         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
 896         enum ieee80211_band band;
 897
 898         if (!priv->media_connected) {
 899                 dev_err(priv->adapter->dev,
 900                         "Can not set Tx data rate in disconnected state\n");
 901                 return -EINVAL;
 902         }
 903
 904         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
 905
 906         memset(bitmap_rates, 0, sizeof(bitmap_rates));
 907
 908         /* Fill HR/DSSS rates. */
 909         if (band == IEEE80211_BAND_2GHZ)
 910                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
 911
 912         /* Fill OFDM rates */
 913         if (band == IEEE80211_BAND_2GHZ)
 914                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
 915         else
 916                 bitmap_rates[1] = mask->control[band].legacy;
 917
 918         /* Fill MCS rates */
 919         bitmap_rates[2] = mask->control[band].mcs[0];
 920         if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
 921                 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
 922
 923         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
 924                                      HostCmd_ACT_GEN_SET, 0, bitmap_rates);
 925 }
 926
 927 /*
 928  * CFG802.11 operation handler for connection quality monitoring.
 929  *
 930  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
 931  * events to FW.
 932  */
 933 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
 934                                                 struct net_device *dev,
 935                                                 s32 rssi_thold, u32 rssi_hyst)
 936 {
 937         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 938         struct mwifiex_ds_misc_subsc_evt subsc_evt;
 939
 940         priv->cqm_rssi_thold = rssi_thold;
 941         priv->cqm_rssi_hyst = rssi_hyst;
 942
 943         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
 944         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
 945
 946         /* Subscribe/unsubscribe low and high rssi events */
 947         if (rssi_thold && rssi_hyst) {
 948                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
 949                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
 950                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
 951                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
 952                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
 953                 return mwifiex_send_cmd_sync(priv,
 954                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 955                                              0, 0, &subsc_evt);
 956         } else {
 957                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
 958                 return mwifiex_send_cmd_sync(priv,
 959                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 960                                              0, 0, &subsc_evt);
 961         }
 962
 963         return 0;
 964 }
 965
 966 /*
 967  * CFG802.11 operation handler for disconnection request.
 968  *
 969  * This function does not work when there is already a disconnection
 970  * procedure going on.
 971  */
 972 static int
 973 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
 974                             u16 reason_code)
 975 {
 976         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 977
 978         if (mwifiex_deauthenticate(priv, NULL))
 979                 return -EFAULT;
 980
 981         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
 982                 " reason code %d\n", priv->cfg_bssid, reason_code);
 983
 984         memset(priv->cfg_bssid, 0, ETH_ALEN);
 985
 986         return 0;
 987 }
 988
 989 /*
 990  * This function informs the CFG802.11 subsystem of a new IBSS.
 991  *
 992  * The following information are sent to the CFG802.11 subsystem
 993  * to register the new IBSS. If we do not register the new IBSS,
 994  * a kernel panic will result.
 995  *      - SSID
 996  *      - SSID length
 997  *      - BSSID
 998  *      - Channel
 999  */
1000 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1001 {
1002         struct ieee80211_channel *chan;
1003         struct mwifiex_bss_info bss_info;
1004         struct cfg80211_bss *bss;
1005         int ie_len;
1006         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1007         enum ieee80211_band band;
1008
1009         if (mwifiex_get_bss_info(priv, &bss_info))
1010                 return -1;
1011
1012         ie_buf[0] = WLAN_EID_SSID;
1013         ie_buf[1] = bss_info.ssid.ssid_len;
1014
1015         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1016                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1017         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1018
1019         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1020         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1021                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1022                                                        band));
1023
1024         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1025                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1026                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1027         cfg80211_put_bss(bss);
1028         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1029
1030         return 0;
1031 }
1032
1033 /*
1034  * This function connects with a BSS.
1035  *
1036  * This function handles both Infra and Ad-Hoc modes. It also performs
1037  * validity checking on the provided parameters, disconnects from the
1038  * current BSS (if any), sets up the association/scan parameters,
1039  * including security settings, and performs specific SSID scan before
1040  * trying to connect.
1041  *
1042  * For Infra mode, the function returns failure if the specified SSID
1043  * is not found in scan table. However, for Ad-Hoc mode, it can create
1044  * the IBSS if it does not exist. On successful completion in either case,
1045  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1046  */
1047 static int
1048 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1049                        u8 *bssid, int mode, struct ieee80211_channel *channel,
1050                        struct cfg80211_connect_params *sme, bool privacy)
1051 {
1052         struct cfg80211_ssid req_ssid;
1053         int ret, auth_type = 0;
1054         struct cfg80211_bss *bss = NULL;
1055         u8 is_scanning_required = 0;
1056
1057         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1058
1059         req_ssid.ssid_len = ssid_len;
1060         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1061                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1062                 return -EINVAL;
1063         }
1064
1065         memcpy(req_ssid.ssid, ssid, ssid_len);
1066         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1067                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1068                 return -EINVAL;
1069         }
1070
1071         /* disconnect before try to associate */
1072         mwifiex_deauthenticate(priv, NULL);
1073
1074         if (channel)
1075                 ret = mwifiex_set_rf_channel(priv, channel,
1076                                                 priv->adapter->channel_type);
1077
1078         /* As this is new association, clear locally stored
1079          * keys and security related flags */
1080         priv->sec_info.wpa_enabled = false;
1081         priv->sec_info.wpa2_enabled = false;
1082         priv->wep_key_curr_index = 0;
1083         priv->sec_info.encryption_mode = 0;
1084         priv->sec_info.is_authtype_auto = 0;
1085         ret = mwifiex_set_encode(priv, NULL, 0, 0, 1);
1086
1087         if (mode == NL80211_IFTYPE_ADHOC) {
1088                 /* "privacy" is set only for ad-hoc mode */
1089                 if (privacy) {
1090                         /*
1091                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1092                          * the firmware can find a matching network from the
1093                          * scan. The cfg80211 does not give us the encryption
1094                          * mode at this stage so just setting it to WEP here.
1095                          */
1096                         priv->sec_info.encryption_mode =
1097                                         WLAN_CIPHER_SUITE_WEP104;
1098                         priv->sec_info.authentication_mode =
1099                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1100                 }
1101
1102                 goto done;
1103         }
1104
1105         /* Now handle infra mode. "sme" is valid for infra mode only */
1106         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1107                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1108                 priv->sec_info.is_authtype_auto = 1;
1109         } else {
1110                 auth_type = sme->auth_type;
1111         }
1112
1113         if (sme->crypto.n_ciphers_pairwise) {
1114                 priv->sec_info.encryption_mode =
1115                                                 sme->crypto.ciphers_pairwise[0];
1116                 priv->sec_info.authentication_mode = auth_type;
1117         }
1118
1119         if (sme->crypto.cipher_group) {
1120                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1121                 priv->sec_info.authentication_mode = auth_type;
1122         }
1123         if (sme->ie)
1124                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1125
1126         if (sme->key) {
1127                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1128                         dev_dbg(priv->adapter->dev,
1129                                 "info: setting wep encryption"
1130                                 " with key len %d\n", sme->key_len);
1131                         priv->wep_key_curr_index = sme->key_idx;
1132                         ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
1133                                                         sme->key_idx, 0);
1134                 }
1135         }
1136 done:
1137         /*
1138          * Scan entries are valid for some time (15 sec). So we can save one
1139          * active scan time if we just try cfg80211_get_bss first. If it fails
1140          * then request scan and cfg80211_get_bss() again for final output.
1141          */
1142         while (1) {
1143                 if (is_scanning_required) {
1144                         /* Do specific SSID scanning */
1145                         if (mwifiex_request_scan(priv, &req_ssid)) {
1146                                 dev_err(priv->adapter->dev, "scan error\n");
1147                                 return -EFAULT;
1148                         }
1149                 }
1150
1151                 /* Find the BSS we want using available scan results */
1152                 if (mode == NL80211_IFTYPE_ADHOC)
1153                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1154                                                bssid, ssid, ssid_len,
1155                                                WLAN_CAPABILITY_IBSS,
1156                                                WLAN_CAPABILITY_IBSS);
1157                 else
1158                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1159                                                bssid, ssid, ssid_len,
1160                                                WLAN_CAPABILITY_ESS,
1161                                                WLAN_CAPABILITY_ESS);
1162
1163                 if (!bss) {
1164                         if (is_scanning_required) {
1165                                 dev_warn(priv->adapter->dev,
1166                                          "assoc: requested bss not found in scan results\n");
1167                                 break;
1168                         }
1169                         is_scanning_required = 1;
1170                 } else {
1171                         dev_dbg(priv->adapter->dev,
1172                                 "info: trying to associate to '%s' bssid %pM\n",
1173                                 (char *) req_ssid.ssid, bss->bssid);
1174                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1175                         break;
1176                 }
1177         }
1178
1179         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1180         if (ret)
1181                 return ret;
1182
1183         if (mode == NL80211_IFTYPE_ADHOC) {
1184                 /* Inform the BSS information to kernel, otherwise
1185                  * kernel will give a panic after successful assoc */
1186                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1187                         return -EFAULT;
1188         }
1189
1190         return ret;
1191 }
1192
1193 /*
1194  * CFG802.11 operation handler for association request.
1195  *
1196  * This function does not work when the current mode is set to Ad-Hoc, or
1197  * when there is already an association procedure going on. The given BSS
1198  * information is used to associate.
1199  */
1200 static int
1201 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1202                          struct cfg80211_connect_params *sme)
1203 {
1204         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1205         int ret = 0;
1206
1207         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1208                 wiphy_err(wiphy, "received infra assoc request "
1209                                 "when station is in ibss mode\n");
1210                 goto done;
1211         }
1212
1213         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1214                   (char *) sme->ssid, sme->bssid);
1215
1216         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1217                                      priv->bss_mode, sme->channel, sme, 0);
1218 done:
1219         if (!ret) {
1220                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1221                                         NULL, 0, WLAN_STATUS_SUCCESS,
1222                                         GFP_KERNEL);
1223                 dev_dbg(priv->adapter->dev,
1224                         "info: associated to bssid %pM successfully\n",
1225                         priv->cfg_bssid);
1226         } else {
1227                 dev_dbg(priv->adapter->dev,
1228                         "info: association to bssid %pM failed\n",
1229                         priv->cfg_bssid);
1230                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1231
1232                 if (ret > 0)
1233                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1234                                                 NULL, 0, NULL, 0, ret,
1235                                                 GFP_KERNEL);
1236                 else
1237                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1238                                                 NULL, 0, NULL, 0,
1239                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1240                                                 GFP_KERNEL);
1241         }
1242
1243         return 0;
1244 }
1245
1246 /*
1247  * CFG802.11 operation handler to join an IBSS.
1248  *
1249  * This function does not work in any mode other than Ad-Hoc, or if
1250  * a join operation is already in progress.
1251  */
1252 static int
1253 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1254                            struct cfg80211_ibss_params *params)
1255 {
1256         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1257         int ret = 0;
1258
1259         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1260                 wiphy_err(wiphy, "request to join ibss received "
1261                                 "when station is not in ibss mode\n");
1262                 goto done;
1263         }
1264
1265         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1266                   (char *) params->ssid, params->bssid);
1267
1268         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1269                                      params->bssid, priv->bss_mode,
1270                                      params->channel, NULL, params->privacy);
1271 done:
1272         if (!ret) {
1273                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1274                 dev_dbg(priv->adapter->dev,
1275                         "info: joined/created adhoc network with bssid"
1276                         " %pM successfully\n", priv->cfg_bssid);
1277         } else {
1278                 dev_dbg(priv->adapter->dev,
1279                         "info: failed creating/joining adhoc network\n");
1280         }
1281
1282         return ret;
1283 }
1284
1285 /*
1286  * CFG802.11 operation handler to leave an IBSS.
1287  *
1288  * This function does not work if a leave operation is
1289  * already in progress.
1290  */
1291 static int
1292 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1293 {
1294         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1295
1296         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1297                   priv->cfg_bssid);
1298         if (mwifiex_deauthenticate(priv, NULL))
1299                 return -EFAULT;
1300
1301         memset(priv->cfg_bssid, 0, ETH_ALEN);
1302
1303         return 0;
1304 }
1305
1306 /*
1307  * CFG802.11 operation handler for scan request.
1308  *
1309  * This function issues a scan request to the firmware based upon
1310  * the user specified scan configuration. On successfull completion,
1311  * it also informs the results.
1312  */
1313 static int
1314 mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1315                       struct cfg80211_scan_request *request)
1316 {
1317         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1318         int i, ret;
1319         struct ieee80211_channel *chan;
1320
1321         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1322
1323         if ((request->flags & CFG80211_SCAN_FLAG_TX_ABORT) &&
1324             atomic_read(&priv->wmm.tx_pkts_queued) >=
1325             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1326                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1327                 return -EBUSY;
1328         }
1329
1330         if (priv->user_scan_cfg) {
1331                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1332                 return -EBUSY;
1333         }
1334
1335         priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1336                                       GFP_KERNEL);
1337         if (!priv->user_scan_cfg) {
1338                 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1339                 return -ENOMEM;
1340         }
1341
1342         priv->scan_request = request;
1343
1344         priv->user_scan_cfg->num_ssids = request->n_ssids;
1345         priv->user_scan_cfg->ssid_list = request->ssids;
1346
1347         if (request->ie && request->ie_len) {
1348                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1349                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1350                                 continue;
1351                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1352                         memcpy(&priv->vs_ie[i].ie, request->ie,
1353                                request->ie_len);
1354                         break;
1355                 }
1356         }
1357
1358         for (i = 0; i < request->n_channels; i++) {
1359                 chan = request->channels[i];
1360                 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1361                 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1362
1363                 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1364                         priv->user_scan_cfg->chan_list[i].scan_type =
1365                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1366                 else
1367                         priv->user_scan_cfg->chan_list[i].scan_type =
1368                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1369
1370                 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1371         }
1372
1373         ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
1374         if (ret) {
1375                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1376                 priv->scan_request = NULL;
1377                 kfree(priv->user_scan_cfg);
1378                 priv->user_scan_cfg = NULL;
1379                 return ret;
1380         }
1381
1382         if (request->ie && request->ie_len) {
1383                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1384                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1385                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1386                                 memset(&priv->vs_ie[i].ie, 0,
1387                                        MWIFIEX_MAX_VSIE_LEN);
1388                         }
1389                 }
1390         }
1391         return 0;
1392 }
1393
1394 /*
1395  * This function sets up the CFG802.11 specific HT capability fields
1396  * with default values.
1397  *
1398  * The following default values are set -
1399  *      - HT Supported = True
1400  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1401  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1402  *      - HT Capabilities supported by firmware
1403  *      - MCS information, Rx mask = 0xff
1404  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1405  */
1406 static void
1407 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1408                       struct mwifiex_private *priv)
1409 {
1410         int rx_mcs_supp;
1411         struct ieee80211_mcs_info mcs_set;
1412         u8 *mcs = (u8 *)&mcs_set;
1413         struct mwifiex_adapter *adapter = priv->adapter;
1414
1415         ht_info->ht_supported = true;
1416         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1417         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1418
1419         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1420
1421         /* Fill HT capability information */
1422         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1423                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1424         else
1425                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1426
1427         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1428                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1429         else
1430                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1431
1432         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1433                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1434         else
1435                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1436
1437         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1438                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1439         else
1440                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1441
1442         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1443                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1444         else
1445                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1446
1447         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1448         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1449
1450         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1451         /* Set MCS for 1x1 */
1452         memset(mcs, 0xff, rx_mcs_supp);
1453         /* Clear all the other values */
1454         memset(&mcs[rx_mcs_supp], 0,
1455                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1456         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1457             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1458                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1459                 SETHT_MCS32(mcs_set.rx_mask);
1460
1461         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1462
1463         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1464 }
1465
1466 /*
1467  *  create a new virtual interface with the given name
1468  */
1469 struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1470                                             char *name,
1471                                             enum nl80211_iftype type,
1472                                             u32 *flags,
1473                                             struct vif_params *params)
1474 {
1475         struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1476         struct mwifiex_adapter *adapter;
1477         struct net_device *dev;
1478         void *mdev_priv;
1479
1480         if (!priv)
1481                 return ERR_PTR(-EFAULT);
1482
1483         adapter = priv->adapter;
1484         if (!adapter)
1485                 return ERR_PTR(-EFAULT);
1486
1487         switch (type) {
1488         case NL80211_IFTYPE_UNSPECIFIED:
1489         case NL80211_IFTYPE_STATION:
1490         case NL80211_IFTYPE_ADHOC:
1491                 if (priv->bss_mode) {
1492                         wiphy_err(wiphy, "cannot create multiple"
1493                                         " station/adhoc interfaces\n");
1494                         return ERR_PTR(-EINVAL);
1495                 }
1496
1497                 if (type == NL80211_IFTYPE_UNSPECIFIED)
1498                         priv->bss_mode = NL80211_IFTYPE_STATION;
1499                 else
1500                         priv->bss_mode = type;
1501
1502                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
1503                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1504                 priv->bss_priority = 0;
1505                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
1506                 priv->bss_num = 0;
1507
1508                 break;
1509         default:
1510                 wiphy_err(wiphy, "type not supported\n");
1511                 return ERR_PTR(-EINVAL);
1512         }
1513
1514         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
1515                                ether_setup, IEEE80211_NUM_ACS, 1);
1516         if (!dev) {
1517                 wiphy_err(wiphy, "no memory available for netdevice\n");
1518                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1519                 return ERR_PTR(-ENOMEM);
1520         }
1521
1522         dev_net_set(dev, wiphy_net(wiphy));
1523         dev->ieee80211_ptr = priv->wdev;
1524         dev->ieee80211_ptr->iftype = priv->bss_mode;
1525         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
1526         memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
1527         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
1528
1529         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1530         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1531         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1532
1533         mdev_priv = netdev_priv(dev);
1534         *((unsigned long *) mdev_priv) = (unsigned long) priv;
1535
1536         priv->netdev = dev;
1537         mwifiex_init_priv_params(priv, dev);
1538
1539         SET_NETDEV_DEV(dev, adapter->dev);
1540
1541         /* Register network device */
1542         if (register_netdevice(dev)) {
1543                 wiphy_err(wiphy, "cannot register virtual network device\n");
1544                 free_netdev(dev);
1545                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1546                 return ERR_PTR(-EFAULT);
1547         }
1548
1549         sema_init(&priv->async_sem, 1);
1550
1551         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
1552
1553 #ifdef CONFIG_DEBUG_FS
1554         mwifiex_dev_debugfs_init(priv);
1555 #endif
1556         return dev;
1557 }
1558 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
1559
1560 /*
1561  * del_virtual_intf: remove the virtual interface determined by dev
1562  */
1563 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev)
1564 {
1565         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1566
1567 #ifdef CONFIG_DEBUG_FS
1568         mwifiex_dev_debugfs_remove(priv);
1569 #endif
1570
1571         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1572
1573         if (netif_carrier_ok(priv->netdev))
1574                 netif_carrier_off(priv->netdev);
1575
1576         if (dev->reg_state == NETREG_REGISTERED)
1577                 unregister_netdevice(dev);
1578
1579         if (dev->reg_state == NETREG_UNREGISTERED)
1580                 free_netdev(dev);
1581
1582         /* Clear the priv in adapter */
1583         priv->netdev = NULL;
1584
1585         priv->media_connected = false;
1586
1587         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1588
1589         return 0;
1590 }
1591 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
1592
1593 /* station cfg80211 operations */
1594 static struct cfg80211_ops mwifiex_cfg80211_ops = {
1595         .add_virtual_intf = mwifiex_add_virtual_intf,
1596         .del_virtual_intf = mwifiex_del_virtual_intf,
1597         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1598         .scan = mwifiex_cfg80211_scan,
1599         .connect = mwifiex_cfg80211_connect,
1600         .disconnect = mwifiex_cfg80211_disconnect,
1601         .get_station = mwifiex_cfg80211_get_station,
1602         .dump_station = mwifiex_cfg80211_dump_station,
1603         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1604         .set_channel = mwifiex_cfg80211_set_channel,
1605         .join_ibss = mwifiex_cfg80211_join_ibss,
1606         .leave_ibss = mwifiex_cfg80211_leave_ibss,
1607         .add_key = mwifiex_cfg80211_add_key,
1608         .del_key = mwifiex_cfg80211_del_key,
1609         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
1610         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
1611         .set_default_key = mwifiex_cfg80211_set_default_key,
1612         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1613         .set_tx_power = mwifiex_cfg80211_set_tx_power,
1614         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
1615         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
1616 };
1617
1618 /*
1619  * This function registers the device with CFG802.11 subsystem.
1620  *
1621  * The function creates the wireless device/wiphy, populates it with
1622  * default parameters and handler function pointers, and finally
1623  * registers the device.
1624  */
1625 int mwifiex_register_cfg80211(struct mwifiex_private *priv)
1626 {
1627         int ret;
1628         void *wdev_priv;
1629         struct wireless_dev *wdev;
1630         struct ieee80211_sta_ht_cap *ht_info;
1631         u8 *country_code;
1632
1633         wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1634         if (!wdev) {
1635                 dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
1636                         __func__);
1637                 return -ENOMEM;
1638         }
1639         wdev->wiphy =
1640                 wiphy_new(&mwifiex_cfg80211_ops,
1641                           sizeof(struct mwifiex_private *));
1642         if (!wdev->wiphy) {
1643                 kfree(wdev);
1644                 return -ENOMEM;
1645         }
1646         wdev->iftype = NL80211_IFTYPE_STATION;
1647         wdev->wiphy->max_scan_ssids = 10;
1648         wdev->wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
1649         wdev->wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
1650         wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1651                                        BIT(NL80211_IFTYPE_ADHOC);
1652
1653         wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1654         ht_info = &wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap;
1655         mwifiex_setup_ht_caps(ht_info, priv);
1656
1657         if (priv->adapter->config_bands & BAND_A) {
1658                 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1659                 ht_info = &wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap;
1660                 mwifiex_setup_ht_caps(ht_info, priv);
1661         } else {
1662                 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1663         }
1664
1665         /* Initialize cipher suits */
1666         wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
1667         wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1668
1669         memcpy(wdev->wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
1670         wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1671
1672         wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1673
1674         wdev->wiphy->probe_resp_offload =
1675                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1676                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1677                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
1678
1679         wiphy_apply_custom_regulatory(wdev->wiphy,
1680                                       &mwifiex_world_regdom_custom);
1681
1682         /* Reserve space for mwifiex specific private data for BSS */
1683         wdev->wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
1684
1685         wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
1686
1687         /* Set struct mwifiex_private pointer in wiphy_priv */
1688         wdev_priv = wiphy_priv(wdev->wiphy);
1689
1690         *(unsigned long *) wdev_priv = (unsigned long) priv;
1691
1692         set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
1693
1694         ret = wiphy_register(wdev->wiphy);
1695         if (ret < 0) {
1696                 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
1697                         __func__);
1698                 wiphy_free(wdev->wiphy);
1699                 kfree(wdev);
1700                 return ret;
1701         } else {
1702                 dev_dbg(priv->adapter->dev,
1703                         "info: successfully registered wiphy device\n");
1704         }
1705
1706         country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
1707         if (country_code)
1708                 dev_info(priv->adapter->dev,
1709                          "ignoring F/W country code %2.2s\n", country_code);
1710
1711         priv->wdev = wdev;
1712
1713         return ret;
1714 }