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 = 2, .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 static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
  41         .n_reg_rules = 7,
  42         .alpha2 =  "99",
  43         .reg_rules = {
  44                 /* Channel 1 - 11 */
  45                 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
  46                 /* Channel 12 - 13 */
  47                 REG_RULE(2467-10, 2472+10, 20, 3, 20,
  48                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
  49                 /* Channel 14 */
  50                 REG_RULE(2484-10, 2484+10, 20, 3, 20,
  51                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
  52                          NL80211_RRF_NO_OFDM),
  53                 /* Channel 36 - 48 */
  54                 REG_RULE(5180-10, 5240+10, 40, 3, 20,
  55                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
  56                 /* Channel 149 - 165 */
  57                 REG_RULE(5745-10, 5825+10, 40, 3, 20,
  58                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
  59                 /* Channel 52 - 64 */
  60                 REG_RULE(5260-10, 5320+10, 40, 3, 30,
  61                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
  62                          NL80211_RRF_DFS),
  63                 /* Channel 100 - 140 */
  64                 REG_RULE(5500-10, 5700+10, 40, 3, 30,
  65                          NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
  66                          NL80211_RRF_DFS),
  67         }
  68 };
  69
  70 /*
  71  * This function maps the nl802.11 channel type into driver channel type.
  72  *
  73  * The mapping is as follows -
  74  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  75  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  76  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  77  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  78  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  79  */
  80 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  81 {
  82         switch (chan_type) {
  83         case NL80211_CHAN_NO_HT:
  84         case NL80211_CHAN_HT20:
  85                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  86         case NL80211_CHAN_HT40PLUS:
  87                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  88         case NL80211_CHAN_HT40MINUS:
  89                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  90         default:
  91                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  92         }
  93 }
  94
  95 /*
  96  * This function checks whether WEP is set.
  97  */
  98 static int
  99 mwifiex_is_alg_wep(u32 cipher)
 100 {
 101         switch (cipher) {
 102         case WLAN_CIPHER_SUITE_WEP40:
 103         case WLAN_CIPHER_SUITE_WEP104:
 104                 return 1;
 105         default:
 106                 break;
 107         }
 108
 109         return 0;
 110 }
 111
 112 /*
 113  * This function retrieves the private structure from kernel wiphy structure.
 114  */
 115 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 116 {
 117         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 118 }
 119
 120 /*
 121  * CFG802.11 operation handler to delete a network key.
 122  */
 123 static int
 124 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 125                          u8 key_index, bool pairwise, const u8 *mac_addr)
 126 {
 127         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 128         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 129         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 130
 131         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 132                 wiphy_err(wiphy, "deleting the crypto keys\n");
 133                 return -EFAULT;
 134         }
 135
 136         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 137         return 0;
 138 }
 139
 140 /*
 141  * This function forms an skb for management frame.
 142  */
 143 static int
 144 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 145 {
 146         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 147         u16 pkt_len;
 148         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 149         struct timeval tv;
 150
 151         pkt_len = len + ETH_ALEN;
 152
 153         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 154                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 155         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 156
 157         memcpy(skb_push(skb, sizeof(tx_control)),
 158                &tx_control, sizeof(tx_control));
 159
 160         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 161
 162         /* Add packet data and address4 */
 163         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 164                sizeof(struct ieee80211_hdr_3addr));
 165         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 166         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 167                buf + sizeof(struct ieee80211_hdr_3addr),
 168                len - sizeof(struct ieee80211_hdr_3addr));
 169
 170         skb->priority = LOW_PRIO_TID;
 171         do_gettimeofday(&tv);
 172         skb->tstamp = timeval_to_ktime(tv);
 173
 174         return 0;
 175 }
 176
 177 /*
 178  * CFG802.11 operation handler to transmit a management frame.
 179  */
 180 static int
 181 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 182                          struct ieee80211_channel *chan, bool offchan,
 183                          enum nl80211_channel_type channel_type,
 184                          bool channel_type_valid, unsigned int wait,
 185                          const u8 *buf, size_t len, bool no_cck,
 186                          bool dont_wait_for_ack, u64 *cookie)
 187 {
 188         struct sk_buff *skb;
 189         u16 pkt_len;
 190         const struct ieee80211_mgmt *mgmt;
 191         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 192
 193         if (!buf || !len) {
 194                 wiphy_err(wiphy, "invalid buffer and length\n");
 195                 return -EFAULT;
 196         }
 197
 198         mgmt = (const struct ieee80211_mgmt *)buf;
 199         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 200             ieee80211_is_probe_resp(mgmt->frame_control)) {
 201                 /* Since we support offload probe resp, we need to skip probe
 202                  * resp in AP or GO mode */
 203                 wiphy_dbg(wiphy,
 204                           "info: skip to send probe resp in AP or GO mode\n");
 205                 return 0;
 206         }
 207
 208         pkt_len = len + ETH_ALEN;
 209         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 210                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 211                             pkt_len + sizeof(pkt_len));
 212
 213         if (!skb) {
 214                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 215                 return -ENOMEM;
 216         }
 217
 218         mwifiex_form_mgmt_frame(skb, buf, len);
 219         mwifiex_queue_tx_pkt(priv, skb);
 220
 221         *cookie = random32() | 1;
 222         cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
 223
 224         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 225         return 0;
 226 }
 227
 228 /*
 229  * CFG802.11 operation handler to register a mgmt frame.
 230  */
 231 static void
 232 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 233                                      struct wireless_dev *wdev,
 234                                      u16 frame_type, bool reg)
 235 {
 236         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 237
 238         if (reg)
 239                 priv->mgmt_frame_mask |= BIT(frame_type >> 4);
 240         else
 241                 priv->mgmt_frame_mask &= ~BIT(frame_type >> 4);
 242
 243         mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
 244                                HostCmd_ACT_GEN_SET, 0, &priv->mgmt_frame_mask);
 245
 246         wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 247 }
 248
 249 /*
 250  * CFG802.11 operation handler to remain on channel.
 251  */
 252 static int
 253 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 254                                    struct wireless_dev *wdev,
 255                                    struct ieee80211_channel *chan,
 256                                    enum nl80211_channel_type channel_type,
 257                                    unsigned int duration, u64 *cookie)
 258 {
 259         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 260         int ret;
 261
 262         if (!chan || !cookie) {
 263                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 264                 return -EINVAL;
 265         }
 266
 267         if (priv->roc_cfg.cookie) {
 268                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
 269                           priv->roc_cfg.cookie);
 270                 return -EBUSY;
 271         }
 272
 273         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 274                                          &channel_type, duration);
 275
 276         if (!ret) {
 277                 *cookie = random32() | 1;
 278                 priv->roc_cfg.cookie = *cookie;
 279                 priv->roc_cfg.chan = *chan;
 280                 priv->roc_cfg.chan_type = channel_type;
 281
 282                 cfg80211_ready_on_channel(wdev, *cookie, chan, channel_type,
 283                                           duration, GFP_ATOMIC);
 284
 285                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 286         }
 287
 288         return ret;
 289 }
 290
 291 /*
 292  * CFG802.11 operation handler to cancel remain on channel.
 293  */
 294 static int
 295 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 296                                           struct wireless_dev *wdev, u64 cookie)
 297 {
 298         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 299         int ret;
 300
 301         if (cookie != priv->roc_cfg.cookie)
 302                 return -ENOENT;
 303
 304         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 305                                          &priv->roc_cfg.chan,
 306                                          &priv->roc_cfg.chan_type, 0);
 307
 308         if (!ret) {
 309                 cfg80211_remain_on_channel_expired(wdev, cookie,
 310                                                    &priv->roc_cfg.chan,
 311                                                    priv->roc_cfg.chan_type,
 312                                                    GFP_ATOMIC);
 313
 314                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 315
 316                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 317         }
 318
 319         return ret;
 320 }
 321
 322 /*
 323  * CFG802.11 operation handler to set Tx power.
 324  */
 325 static int
 326 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 327                               enum nl80211_tx_power_setting type,
 328                               int mbm)
 329 {
 330         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 331         struct mwifiex_private *priv;
 332         struct mwifiex_power_cfg power_cfg;
 333         int dbm = MBM_TO_DBM(mbm);
 334
 335         if (type == NL80211_TX_POWER_FIXED) {
 336                 power_cfg.is_power_auto = 0;
 337                 power_cfg.power_level = dbm;
 338         } else {
 339                 power_cfg.is_power_auto = 1;
 340         }
 341
 342         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 343
 344         return mwifiex_set_tx_power(priv, &power_cfg);
 345 }
 346
 347 /*
 348  * CFG802.11 operation handler to set Power Save option.
 349  *
 350  * The timeout value, if provided, is currently ignored.
 351  */
 352 static int
 353 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 354                                 struct net_device *dev,
 355                                 bool enabled, int timeout)
 356 {
 357         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 358         u32 ps_mode;
 359
 360         if (timeout)
 361                 wiphy_dbg(wiphy,
 362                           "info: ignore timeout value for IEEE Power Save\n");
 363
 364         ps_mode = enabled;
 365
 366         return mwifiex_drv_set_power(priv, &ps_mode);
 367 }
 368
 369 /*
 370  * CFG802.11 operation handler to set the default network key.
 371  */
 372 static int
 373 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 374                                  u8 key_index, bool unicast,
 375                                  bool multicast)
 376 {
 377         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 378
 379         /* Return if WEP key not configured */
 380         if (!priv->sec_info.wep_enabled)
 381                 return 0;
 382
 383         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 384                 priv->wep_key_curr_index = key_index;
 385         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 386                                       NULL, 0)) {
 387                 wiphy_err(wiphy, "set default Tx key index\n");
 388                 return -EFAULT;
 389         }
 390
 391         return 0;
 392 }
 393
 394 /*
 395  * CFG802.11 operation handler to add a network key.
 396  */
 397 static int
 398 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 399                          u8 key_index, bool pairwise, const u8 *mac_addr,
 400                          struct key_params *params)
 401 {
 402         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 403         struct mwifiex_wep_key *wep_key;
 404         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 405         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 406
 407         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 408             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 409              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 410                 if (params->key && params->key_len) {
 411                         wep_key = &priv->wep_key[key_index];
 412                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 413                         memcpy(wep_key->key_material, params->key,
 414                                params->key_len);
 415                         wep_key->key_index = key_index;
 416                         wep_key->key_length = params->key_len;
 417                         priv->sec_info.wep_enabled = 1;
 418                 }
 419                 return 0;
 420         }
 421
 422         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 423                                key_index, peer_mac, 0)) {
 424                 wiphy_err(wiphy, "crypto keys added\n");
 425                 return -EFAULT;
 426         }
 427
 428         return 0;
 429 }
 430
 431 /*
 432  * This function sends domain information to the firmware.
 433  *
 434  * The following information are passed to the firmware -
 435  *      - Country codes
 436  *      - Sub bands (first channel, number of channels, maximum Tx power)
 437  */
 438 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 439 {
 440         u8 no_of_triplet = 0;
 441         struct ieee80211_country_ie_triplet *t;
 442         u8 no_of_parsed_chan = 0;
 443         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 444         u8 i, flag = 0;
 445         enum ieee80211_band band;
 446         struct ieee80211_supported_band *sband;
 447         struct ieee80211_channel *ch;
 448         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 449         struct mwifiex_private *priv;
 450         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 451
 452         /* Set country code */
 453         domain_info->country_code[0] = adapter->country_code[0];
 454         domain_info->country_code[1] = adapter->country_code[1];
 455         domain_info->country_code[2] = ' ';
 456
 457         band = mwifiex_band_to_radio_type(adapter->config_bands);
 458         if (!wiphy->bands[band]) {
 459                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 460                 return -1;
 461         }
 462
 463         sband = wiphy->bands[band];
 464
 465         for (i = 0; i < sband->n_channels ; i++) {
 466                 ch = &sband->channels[i];
 467                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 468                         continue;
 469
 470                 if (!flag) {
 471                         flag = 1;
 472                         first_chan = (u32) ch->hw_value;
 473                         next_chan = first_chan;
 474                         max_pwr = ch->max_reg_power;
 475                         no_of_parsed_chan = 1;
 476                         continue;
 477                 }
 478
 479                 if (ch->hw_value == next_chan + 1 &&
 480                     ch->max_reg_power == max_pwr) {
 481                         next_chan++;
 482                         no_of_parsed_chan++;
 483                 } else {
 484                         t = &domain_info->triplet[no_of_triplet];
 485                         t->chans.first_channel = first_chan;
 486                         t->chans.num_channels = no_of_parsed_chan;
 487                         t->chans.max_power = max_pwr;
 488                         no_of_triplet++;
 489                         first_chan = (u32) ch->hw_value;
 490                         next_chan = first_chan;
 491                         max_pwr = ch->max_reg_power;
 492                         no_of_parsed_chan = 1;
 493                 }
 494         }
 495
 496         if (flag) {
 497                 t = &domain_info->triplet[no_of_triplet];
 498                 t->chans.first_channel = first_chan;
 499                 t->chans.num_channels = no_of_parsed_chan;
 500                 t->chans.max_power = max_pwr;
 501                 no_of_triplet++;
 502         }
 503
 504         domain_info->no_of_triplet = no_of_triplet;
 505
 506         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 507
 508         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 509                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 510                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 511                 return -1;
 512         }
 513
 514         return 0;
 515 }
 516
 517 /*
 518  * CFG802.11 regulatory domain callback function.
 519  *
 520  * This function is called when the regulatory domain is changed due to the
 521  * following reasons -
 522  *      - Set by driver
 523  *      - Set by system core
 524  *      - Set by user
 525  *      - Set bt Country IE
 526  */
 527 static int mwifiex_reg_notifier(struct wiphy *wiphy,
 528                                 struct regulatory_request *request)
 529 {
 530         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 531
 532         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 533                   request->alpha2[0], request->alpha2[1]);
 534
 535         memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
 536
 537         switch (request->initiator) {
 538         case NL80211_REGDOM_SET_BY_DRIVER:
 539         case NL80211_REGDOM_SET_BY_CORE:
 540         case NL80211_REGDOM_SET_BY_USER:
 541                 break;
 542                 /* Todo: apply driver specific changes in channel flags based
 543                    on the request initiator if necessary. */
 544         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 545                 break;
 546         }
 547         mwifiex_send_domain_info_cmd_fw(wiphy);
 548
 549         return 0;
 550 }
 551
 552 /*
 553  * This function sets the fragmentation threshold.
 554  *
 555  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 556  * and MWIFIEX_FRAG_MAX_VALUE.
 557  */
 558 static int
 559 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 560 {
 561         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 562             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 563                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 564
 565         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 566                                      HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 567                                      &frag_thr);
 568 }
 569
 570 /*
 571  * This function sets the RTS threshold.
 572
 573  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 574  * and MWIFIEX_RTS_MAX_VALUE.
 575  */
 576 static int
 577 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 578 {
 579         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 580                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 581
 582         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 583                                     HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 584                                     &rts_thr);
 585 }
 586
 587 /*
 588  * CFG802.11 operation handler to set wiphy parameters.
 589  *
 590  * This function can be used to set the RTS threshold and the
 591  * Fragmentation threshold of the driver.
 592  */
 593 static int
 594 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 595 {
 596         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 597         struct mwifiex_private *priv;
 598         struct mwifiex_uap_bss_param *bss_cfg;
 599         int ret, bss_started, i;
 600
 601         for (i = 0; i < adapter->priv_num; i++) {
 602                 priv = adapter->priv[i];
 603
 604                 switch (priv->bss_role) {
 605                 case MWIFIEX_BSS_ROLE_UAP:
 606                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 607                                           GFP_KERNEL);
 608                         if (!bss_cfg)
 609                                 return -ENOMEM;
 610
 611                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 612
 613                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 614                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 615                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 616                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 617                         if (changed & WIPHY_PARAM_RETRY_LONG)
 618                                 bss_cfg->retry_limit = wiphy->retry_long;
 619
 620                         bss_started = priv->bss_started;
 621
 622                         ret = mwifiex_send_cmd_sync(priv,
 623                                                     HostCmd_CMD_UAP_BSS_STOP,
 624                                                     HostCmd_ACT_GEN_SET, 0,
 625                                                     NULL);
 626                         if (ret) {
 627                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 628                                 kfree(bss_cfg);
 629                                 return ret;
 630                         }
 631
 632                         ret = mwifiex_send_cmd_async(priv,
 633                                                      HostCmd_CMD_UAP_SYS_CONFIG,
 634                                                      HostCmd_ACT_GEN_SET,
 635                                                      UAP_BSS_PARAMS_I, bss_cfg);
 636
 637                         kfree(bss_cfg);
 638
 639                         if (ret) {
 640                                 wiphy_err(wiphy, "Failed to set bss config\n");
 641                                 return ret;
 642                         }
 643
 644                         if (!bss_started)
 645                                 break;
 646
 647                         ret = mwifiex_send_cmd_async(priv,
 648                                                      HostCmd_CMD_UAP_BSS_START,
 649                                                      HostCmd_ACT_GEN_SET, 0,
 650                                                      NULL);
 651                         if (ret) {
 652                                 wiphy_err(wiphy, "Failed to start BSS\n");
 653                                 return ret;
 654                         }
 655
 656                         break;
 657                 case MWIFIEX_BSS_ROLE_STA:
 658                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 659                                 ret = mwifiex_set_rts(priv,
 660                                                       wiphy->rts_threshold);
 661                                 if (ret)
 662                                         return ret;
 663                         }
 664                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 665                                 ret = mwifiex_set_frag(priv,
 666                                                        wiphy->frag_threshold);
 667                                 if (ret)
 668                                         return ret;
 669                         }
 670                         break;
 671                 }
 672         }
 673
 674         return 0;
 675 }
 676
 677 static int
 678 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 679 {
 680         u16 mode = P2P_MODE_DISABLE;
 681
 682         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 683                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 684
 685         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 686                                   HostCmd_ACT_GEN_SET, 0, &mode))
 687                 return -1;
 688
 689         return 0;
 690 }
 691
 692 /*
 693  * This function initializes the functionalities for P2P client.
 694  * The P2P client initialization sequence is:
 695  * disable -> device -> client
 696  */
 697 static int
 698 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 699 {
 700         u16 mode;
 701
 702         if (mwifiex_cfg80211_deinit_p2p(priv))
 703                 return -1;
 704
 705         mode = P2P_MODE_DEVICE;
 706         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 707                                   HostCmd_ACT_GEN_SET, 0, &mode))
 708                 return -1;
 709
 710         mode = P2P_MODE_CLIENT;
 711         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 712                                   HostCmd_ACT_GEN_SET, 0, &mode))
 713                 return -1;
 714
 715         return 0;
 716 }
 717
 718 /*
 719  * This function initializes the functionalities for P2P GO.
 720  * The P2P GO initialization sequence is:
 721  * disable -> device -> GO
 722  */
 723 static int
 724 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 725 {
 726         u16 mode;
 727
 728         if (mwifiex_cfg80211_deinit_p2p(priv))
 729                 return -1;
 730
 731         mode = P2P_MODE_DEVICE;
 732         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 733                                   HostCmd_ACT_GEN_SET, 0, &mode))
 734                 return -1;
 735
 736         mode = P2P_MODE_GO;
 737         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 738                                   HostCmd_ACT_GEN_SET, 0, &mode))
 739                 return -1;
 740
 741         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 742                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 743
 744         return 0;
 745 }
 746
 747 /*
 748  * CFG802.11 operation handler to change interface type.
 749  */
 750 static int
 751 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 752                                      struct net_device *dev,
 753                                      enum nl80211_iftype type, u32 *flags,
 754                                      struct vif_params *params)
 755 {
 756         int ret;
 757         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 758
 759         switch (dev->ieee80211_ptr->iftype) {
 760         case NL80211_IFTYPE_ADHOC:
 761                 switch (type) {
 762                 case NL80211_IFTYPE_STATION:
 763                         break;
 764                 case NL80211_IFTYPE_UNSPECIFIED:
 765                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 766                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 767                         return 0;
 768                 case NL80211_IFTYPE_AP:
 769                 default:
 770                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 771                                   dev->name, type);
 772                         return -EOPNOTSUPP;
 773                 }
 774                 break;
 775         case NL80211_IFTYPE_STATION:
 776                 switch (type) {
 777                 case NL80211_IFTYPE_ADHOC:
 778                         break;
 779                 case NL80211_IFTYPE_P2P_CLIENT:
 780                         if (mwifiex_cfg80211_init_p2p_client(priv))
 781                                 return -EFAULT;
 782                         dev->ieee80211_ptr->iftype = type;
 783                         return 0;
 784                 case NL80211_IFTYPE_P2P_GO:
 785                         if (mwifiex_cfg80211_init_p2p_go(priv))
 786                                 return -EFAULT;
 787                         dev->ieee80211_ptr->iftype = type;
 788                         return 0;
 789                 case NL80211_IFTYPE_UNSPECIFIED:
 790                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 791                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 792                         return 0;
 793                 case NL80211_IFTYPE_AP:
 794                 default:
 795                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 796                                   dev->name, type);
 797                         return -EOPNOTSUPP;
 798                 }
 799                 break;
 800         case NL80211_IFTYPE_AP:
 801                 switch (type) {
 802                 case NL80211_IFTYPE_UNSPECIFIED:
 803                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 804                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 805                         return 0;
 806                 case NL80211_IFTYPE_ADHOC:
 807                 case NL80211_IFTYPE_STATION:
 808                 default:
 809                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 810                                   dev->name, type);
 811                         return -EOPNOTSUPP;
 812                 }
 813                 break;
 814         case NL80211_IFTYPE_P2P_CLIENT:
 815         case NL80211_IFTYPE_P2P_GO:
 816                 switch (type) {
 817                 case NL80211_IFTYPE_STATION:
 818                         if (mwifiex_cfg80211_deinit_p2p(priv))
 819                                 return -EFAULT;
 820                         dev->ieee80211_ptr->iftype = type;
 821                         return 0;
 822                 default:
 823                         return -EOPNOTSUPP;
 824                 }
 825                 break;
 826         default:
 827                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 828                           dev->name, dev->ieee80211_ptr->iftype);
 829                 return -EOPNOTSUPP;
 830         }
 831
 832         dev->ieee80211_ptr->iftype = type;
 833         priv->bss_mode = type;
 834         mwifiex_deauthenticate(priv, NULL);
 835
 836         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 837
 838         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
 839                                     HostCmd_ACT_GEN_SET, 0, NULL);
 840
 841         return ret;
 842 }
 843
 844 /*
 845  * This function dumps the station information on a buffer.
 846  *
 847  * The following information are shown -
 848  *      - Total bytes transmitted
 849  *      - Total bytes received
 850  *      - Total packets transmitted
 851  *      - Total packets received
 852  *      - Signal quality level
 853  *      - Transmission rate
 854  */
 855 static int
 856 mwifiex_dump_station_info(struct mwifiex_private *priv,
 857                           struct station_info *sinfo)
 858 {
 859         u32 rate;
 860
 861         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 862                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 863                         STATION_INFO_TX_BITRATE |
 864                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 865
 866         /* Get signal information from the firmware */
 867         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 868                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 869                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 870                 return -EFAULT;
 871         }
 872
 873         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 874                 dev_err(priv->adapter->dev, "getting data rate\n");
 875                 return -EFAULT;
 876         }
 877
 878         /* Get DTIM period information from firmware */
 879         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 880                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 881                               &priv->dtim_period);
 882
 883         /*
 884          * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
 885          * MCS index values for us are 0 to 15.
 886          */
 887         if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 888                 sinfo->txrate.mcs = priv->tx_rate;
 889                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 890                 /* 40MHz rate */
 891                 if (priv->tx_htinfo & BIT(1))
 892                         sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 893                 /* SGI enabled */
 894                 if (priv->tx_htinfo & BIT(2))
 895                         sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 896         }
 897
 898         sinfo->signal_avg = priv->bcn_rssi_avg;
 899         sinfo->rx_bytes = priv->stats.rx_bytes;
 900         sinfo->tx_bytes = priv->stats.tx_bytes;
 901         sinfo->rx_packets = priv->stats.rx_packets;
 902         sinfo->tx_packets = priv->stats.tx_packets;
 903         sinfo->signal = priv->bcn_rssi_avg;
 904         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 905         sinfo->txrate.legacy = rate * 5;
 906
 907         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 908                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 909                 sinfo->bss_param.flags = 0;
 910                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 911                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 912                         sinfo->bss_param.flags |=
 913                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 914                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 915                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 916                         sinfo->bss_param.flags |=
 917                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 918                 sinfo->bss_param.dtim_period = priv->dtim_period;
 919                 sinfo->bss_param.beacon_interval =
 920                         priv->curr_bss_params.bss_descriptor.beacon_period;
 921         }
 922
 923         return 0;
 924 }
 925
 926 /*
 927  * CFG802.11 operation handler to get station information.
 928  *
 929  * This function only works in connected mode, and dumps the
 930  * requested station information, if available.
 931  */
 932 static int
 933 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 934                              u8 *mac, struct station_info *sinfo)
 935 {
 936         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 937
 938         if (!priv->media_connected)
 939                 return -ENOENT;
 940         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 941                 return -ENOENT;
 942
 943         return mwifiex_dump_station_info(priv, sinfo);
 944 }
 945
 946 /*
 947  * CFG802.11 operation handler to dump station information.
 948  */
 949 static int
 950 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 951                               int idx, u8 *mac, struct station_info *sinfo)
 952 {
 953         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 954
 955         if (!priv->media_connected || idx)
 956                 return -ENOENT;
 957
 958         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 959
 960         return mwifiex_dump_station_info(priv, sinfo);
 961 }
 962
 963 /* Supported rates to be advertised to the cfg80211 */
 964 static struct ieee80211_rate mwifiex_rates[] = {
 965         {.bitrate = 10, .hw_value = 2, },
 966         {.bitrate = 20, .hw_value = 4, },
 967         {.bitrate = 55, .hw_value = 11, },
 968         {.bitrate = 110, .hw_value = 22, },
 969         {.bitrate = 60, .hw_value = 12, },
 970         {.bitrate = 90, .hw_value = 18, },
 971         {.bitrate = 120, .hw_value = 24, },
 972         {.bitrate = 180, .hw_value = 36, },
 973         {.bitrate = 240, .hw_value = 48, },
 974         {.bitrate = 360, .hw_value = 72, },
 975         {.bitrate = 480, .hw_value = 96, },
 976         {.bitrate = 540, .hw_value = 108, },
 977 };
 978
 979 /* Channel definitions to be advertised to cfg80211 */
 980 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
 981         {.center_freq = 2412, .hw_value = 1, },
 982         {.center_freq = 2417, .hw_value = 2, },
 983         {.center_freq = 2422, .hw_value = 3, },
 984         {.center_freq = 2427, .hw_value = 4, },
 985         {.center_freq = 2432, .hw_value = 5, },
 986         {.center_freq = 2437, .hw_value = 6, },
 987         {.center_freq = 2442, .hw_value = 7, },
 988         {.center_freq = 2447, .hw_value = 8, },
 989         {.center_freq = 2452, .hw_value = 9, },
 990         {.center_freq = 2457, .hw_value = 10, },
 991         {.center_freq = 2462, .hw_value = 11, },
 992         {.center_freq = 2467, .hw_value = 12, },
 993         {.center_freq = 2472, .hw_value = 13, },
 994         {.center_freq = 2484, .hw_value = 14, },
 995 };
 996
 997 static struct ieee80211_supported_band mwifiex_band_2ghz = {
 998         .channels = mwifiex_channels_2ghz,
 999         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1000         .bitrates = mwifiex_rates,
1001         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1002 };
1003
1004 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1005         {.center_freq = 5040, .hw_value = 8, },
1006         {.center_freq = 5060, .hw_value = 12, },
1007         {.center_freq = 5080, .hw_value = 16, },
1008         {.center_freq = 5170, .hw_value = 34, },
1009         {.center_freq = 5190, .hw_value = 38, },
1010         {.center_freq = 5210, .hw_value = 42, },
1011         {.center_freq = 5230, .hw_value = 46, },
1012         {.center_freq = 5180, .hw_value = 36, },
1013         {.center_freq = 5200, .hw_value = 40, },
1014         {.center_freq = 5220, .hw_value = 44, },
1015         {.center_freq = 5240, .hw_value = 48, },
1016         {.center_freq = 5260, .hw_value = 52, },
1017         {.center_freq = 5280, .hw_value = 56, },
1018         {.center_freq = 5300, .hw_value = 60, },
1019         {.center_freq = 5320, .hw_value = 64, },
1020         {.center_freq = 5500, .hw_value = 100, },
1021         {.center_freq = 5520, .hw_value = 104, },
1022         {.center_freq = 5540, .hw_value = 108, },
1023         {.center_freq = 5560, .hw_value = 112, },
1024         {.center_freq = 5580, .hw_value = 116, },
1025         {.center_freq = 5600, .hw_value = 120, },
1026         {.center_freq = 5620, .hw_value = 124, },
1027         {.center_freq = 5640, .hw_value = 128, },
1028         {.center_freq = 5660, .hw_value = 132, },
1029         {.center_freq = 5680, .hw_value = 136, },
1030         {.center_freq = 5700, .hw_value = 140, },
1031         {.center_freq = 5745, .hw_value = 149, },
1032         {.center_freq = 5765, .hw_value = 153, },
1033         {.center_freq = 5785, .hw_value = 157, },
1034         {.center_freq = 5805, .hw_value = 161, },
1035         {.center_freq = 5825, .hw_value = 165, },
1036 };
1037
1038 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1039         .channels = mwifiex_channels_5ghz,
1040         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1041         .bitrates = mwifiex_rates + 4,
1042         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1043 };
1044
1045
1046 /* Supported crypto cipher suits to be advertised to cfg80211 */
1047 static const u32 mwifiex_cipher_suites[] = {
1048         WLAN_CIPHER_SUITE_WEP40,
1049         WLAN_CIPHER_SUITE_WEP104,
1050         WLAN_CIPHER_SUITE_TKIP,
1051         WLAN_CIPHER_SUITE_CCMP,
1052         WLAN_CIPHER_SUITE_AES_CMAC,
1053 };
1054
1055 /* Supported mgmt frame types to be advertised to cfg80211 */
1056 static const struct ieee80211_txrx_stypes
1057 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1058         [NL80211_IFTYPE_STATION] = {
1059                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1060                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1061                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1062                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1063         },
1064         [NL80211_IFTYPE_AP] = {
1065                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1066                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1067                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1068                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1069         },
1070         [NL80211_IFTYPE_P2P_CLIENT] = {
1071                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1072                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1073                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1074                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1075         },
1076         [NL80211_IFTYPE_P2P_GO] = {
1077                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1078                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1079                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1080                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1081         },
1082 };
1083
1084 /*
1085  * CFG802.11 operation handler for setting bit rates.
1086  *
1087  * Function configures data rates to firmware using bitrate mask
1088  * provided by cfg80211.
1089  */
1090 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1091                                 struct net_device *dev,
1092                                 const u8 *peer,
1093                                 const struct cfg80211_bitrate_mask *mask)
1094 {
1095         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1096         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1097         enum ieee80211_band band;
1098
1099         if (!priv->media_connected) {
1100                 dev_err(priv->adapter->dev,
1101                         "Can not set Tx data rate in disconnected state\n");
1102                 return -EINVAL;
1103         }
1104
1105         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1106
1107         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1108
1109         /* Fill HR/DSSS rates. */
1110         if (band == IEEE80211_BAND_2GHZ)
1111                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1112
1113         /* Fill OFDM rates */
1114         if (band == IEEE80211_BAND_2GHZ)
1115                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1116         else
1117                 bitmap_rates[1] = mask->control[band].legacy;
1118
1119         /* Fill MCS rates */
1120         bitmap_rates[2] = mask->control[band].mcs[0];
1121         if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1122                 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
1123
1124         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1125                                      HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1126 }
1127
1128 /*
1129  * CFG802.11 operation handler for connection quality monitoring.
1130  *
1131  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1132  * events to FW.
1133  */
1134 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1135                                                 struct net_device *dev,
1136                                                 s32 rssi_thold, u32 rssi_hyst)
1137 {
1138         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1139         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1140
1141         priv->cqm_rssi_thold = rssi_thold;
1142         priv->cqm_rssi_hyst = rssi_hyst;
1143
1144         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1145         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1146
1147         /* Subscribe/unsubscribe low and high rssi events */
1148         if (rssi_thold && rssi_hyst) {
1149                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1150                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1151                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1152                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1153                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1154                 return mwifiex_send_cmd_sync(priv,
1155                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1156                                              0, 0, &subsc_evt);
1157         } else {
1158                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1159                 return mwifiex_send_cmd_sync(priv,
1160                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1161                                              0, 0, &subsc_evt);
1162         }
1163
1164         return 0;
1165 }
1166
1167 /* cfg80211 operation handler for change_beacon.
1168  * Function retrieves and sets modified management IEs to FW.
1169  */
1170 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1171                                           struct net_device *dev,
1172                                           struct cfg80211_beacon_data *data)
1173 {
1174         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1175
1176         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1177                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1178                 return -EINVAL;
1179         }
1180
1181         if (!priv->bss_started) {
1182                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1183                 return -EINVAL;
1184         }
1185
1186         if (mwifiex_set_mgmt_ies(priv, data)) {
1187                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1188                 return -EFAULT;
1189         }
1190
1191         return 0;
1192 }
1193
1194 static int
1195 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1196 {
1197         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1198         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1199                                                         MWIFIEX_BSS_ROLE_ANY);
1200         struct mwifiex_ds_ant_cfg ant_cfg;
1201
1202         if (!tx_ant || !rx_ant)
1203                 return -EOPNOTSUPP;
1204
1205         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1206                 /* Not a MIMO chip. User should provide specific antenna number
1207                  * for Tx/Rx path or enable all antennas for diversity
1208                  */
1209                 if (tx_ant != rx_ant)
1210                         return -EOPNOTSUPP;
1211
1212                 if ((tx_ant & (tx_ant - 1)) &&
1213                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1214                         return -EOPNOTSUPP;
1215
1216                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1217                     (priv->adapter->number_of_antenna > 1)) {
1218                         tx_ant = RF_ANTENNA_AUTO;
1219                         rx_ant = RF_ANTENNA_AUTO;
1220                 }
1221         }
1222
1223         ant_cfg.tx_ant = tx_ant;
1224         ant_cfg.rx_ant = rx_ant;
1225
1226         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1227                                      HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1228 }
1229
1230 /* cfg80211 operation handler for stop ap.
1231  * Function stops BSS running at uAP interface.
1232  */
1233 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1234 {
1235         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1236
1237         if (mwifiex_del_mgmt_ies(priv))
1238                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1239
1240         priv->ap_11n_enabled = 0;
1241
1242         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1243                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1244                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1245                 return -1;
1246         }
1247
1248         return 0;
1249 }
1250
1251 /* cfg80211 operation handler for start_ap.
1252  * Function sets beacon period, DTIM period, SSID and security into
1253  * AP config structure.
1254  * AP is configured with these settings and BSS is started.
1255  */
1256 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1257                                      struct net_device *dev,
1258                                      struct cfg80211_ap_settings *params)
1259 {
1260         struct mwifiex_uap_bss_param *bss_cfg;
1261         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1262         u8 config_bands = 0;
1263
1264         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1265                 return -1;
1266         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1267                 return -1;
1268
1269         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1270         if (!bss_cfg)
1271                 return -ENOMEM;
1272
1273         mwifiex_set_sys_config_invalid_data(bss_cfg);
1274
1275         if (params->beacon_interval)
1276                 bss_cfg->beacon_period = params->beacon_interval;
1277         if (params->dtim_period)
1278                 bss_cfg->dtim_period = params->dtim_period;
1279
1280         if (params->ssid && params->ssid_len) {
1281                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1282                 bss_cfg->ssid.ssid_len = params->ssid_len;
1283         }
1284
1285         switch (params->hidden_ssid) {
1286         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1287                 bss_cfg->bcast_ssid_ctl = 1;
1288                 break;
1289         case NL80211_HIDDEN_SSID_ZERO_LEN:
1290                 bss_cfg->bcast_ssid_ctl = 0;
1291                 break;
1292         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1293                 /* firmware doesn't support this type of hidden SSID */
1294         default:
1295                 kfree(bss_cfg);
1296                 return -EINVAL;
1297         }
1298
1299         bss_cfg->channel =
1300             (u8)ieee80211_frequency_to_channel(params->channel->center_freq);
1301
1302         /* Set appropriate bands */
1303         if (params->channel->band == IEEE80211_BAND_2GHZ) {
1304                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1305
1306                 if (params->channel_type == NL80211_CHAN_NO_HT)
1307                         config_bands = BAND_B | BAND_G;
1308                 else
1309                         config_bands = BAND_B | BAND_G | BAND_GN;
1310         } else {
1311                 bss_cfg->band_cfg = BAND_CONFIG_A;
1312
1313                 if (params->channel_type == NL80211_CHAN_NO_HT)
1314                         config_bands = BAND_A;
1315                 else
1316                         config_bands = BAND_AN | BAND_A;
1317         }
1318
1319         if (!((config_bands | priv->adapter->fw_bands) &
1320               ~priv->adapter->fw_bands))
1321                 priv->adapter->config_bands = config_bands;
1322
1323         mwifiex_set_uap_rates(bss_cfg, params);
1324         mwifiex_send_domain_info_cmd_fw(wiphy);
1325
1326         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1327                 kfree(bss_cfg);
1328                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1329                 return -1;
1330         }
1331
1332         mwifiex_set_ht_params(priv, bss_cfg, params);
1333
1334         if (params->inactivity_timeout > 0) {
1335                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1336                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1337                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1338         }
1339
1340         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1341                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1342                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1343                 kfree(bss_cfg);
1344                 return -1;
1345         }
1346
1347         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1348                                    HostCmd_ACT_GEN_SET,
1349                                    UAP_BSS_PARAMS_I, bss_cfg)) {
1350                 wiphy_err(wiphy, "Failed to set the SSID\n");
1351                 kfree(bss_cfg);
1352                 return -1;
1353         }
1354
1355         kfree(bss_cfg);
1356
1357         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1358                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
1359                 wiphy_err(wiphy, "Failed to start the BSS\n");
1360                 return -1;
1361         }
1362
1363         if (priv->sec_info.wep_enabled)
1364                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1365         else
1366                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1367
1368         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1369                                   HostCmd_ACT_GEN_SET, 0,
1370                                   &priv->curr_pkt_filter))
1371                 return -1;
1372
1373         return 0;
1374 }
1375
1376 /*
1377  * CFG802.11 operation handler for disconnection request.
1378  *
1379  * This function does not work when there is already a disconnection
1380  * procedure going on.
1381  */
1382 static int
1383 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1384                             u16 reason_code)
1385 {
1386         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1387
1388         if (mwifiex_deauthenticate(priv, NULL))
1389                 return -EFAULT;
1390
1391         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1392                 " reason code %d\n", priv->cfg_bssid, reason_code);
1393
1394         memset(priv->cfg_bssid, 0, ETH_ALEN);
1395
1396         return 0;
1397 }
1398
1399 /*
1400  * This function informs the CFG802.11 subsystem of a new IBSS.
1401  *
1402  * The following information are sent to the CFG802.11 subsystem
1403  * to register the new IBSS. If we do not register the new IBSS,
1404  * a kernel panic will result.
1405  *      - SSID
1406  *      - SSID length
1407  *      - BSSID
1408  *      - Channel
1409  */
1410 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1411 {
1412         struct ieee80211_channel *chan;
1413         struct mwifiex_bss_info bss_info;
1414         struct cfg80211_bss *bss;
1415         int ie_len;
1416         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1417         enum ieee80211_band band;
1418
1419         if (mwifiex_get_bss_info(priv, &bss_info))
1420                 return -1;
1421
1422         ie_buf[0] = WLAN_EID_SSID;
1423         ie_buf[1] = bss_info.ssid.ssid_len;
1424
1425         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1426                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1427         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1428
1429         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1430         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1431                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1432                                                        band));
1433
1434         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1435                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1436                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1437         cfg80211_put_bss(bss);
1438         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1439
1440         return 0;
1441 }
1442
1443 /*
1444  * This function connects with a BSS.
1445  *
1446  * This function handles both Infra and Ad-Hoc modes. It also performs
1447  * validity checking on the provided parameters, disconnects from the
1448  * current BSS (if any), sets up the association/scan parameters,
1449  * including security settings, and performs specific SSID scan before
1450  * trying to connect.
1451  *
1452  * For Infra mode, the function returns failure if the specified SSID
1453  * is not found in scan table. However, for Ad-Hoc mode, it can create
1454  * the IBSS if it does not exist. On successful completion in either case,
1455  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1456  */
1457 static int
1458 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1459                        u8 *bssid, int mode, struct ieee80211_channel *channel,
1460                        struct cfg80211_connect_params *sme, bool privacy)
1461 {
1462         struct cfg80211_ssid req_ssid;
1463         int ret, auth_type = 0;
1464         struct cfg80211_bss *bss = NULL;
1465         u8 is_scanning_required = 0, config_bands = 0;
1466
1467         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1468
1469         req_ssid.ssid_len = ssid_len;
1470         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1471                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1472                 return -EINVAL;
1473         }
1474
1475         memcpy(req_ssid.ssid, ssid, ssid_len);
1476         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1477                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1478                 return -EINVAL;
1479         }
1480
1481         /* disconnect before try to associate */
1482         mwifiex_deauthenticate(priv, NULL);
1483
1484         if (channel) {
1485                 if (mode == NL80211_IFTYPE_STATION) {
1486                         if (channel->band == IEEE80211_BAND_2GHZ)
1487                                 config_bands = BAND_B | BAND_G | BAND_GN;
1488                         else
1489                                 config_bands = BAND_A | BAND_AN;
1490
1491                         if (!((config_bands | priv->adapter->fw_bands) &
1492                               ~priv->adapter->fw_bands))
1493                                 priv->adapter->config_bands = config_bands;
1494                 }
1495         }
1496
1497         /* As this is new association, clear locally stored
1498          * keys and security related flags */
1499         priv->sec_info.wpa_enabled = false;
1500         priv->sec_info.wpa2_enabled = false;
1501         priv->wep_key_curr_index = 0;
1502         priv->sec_info.encryption_mode = 0;
1503         priv->sec_info.is_authtype_auto = 0;
1504         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1505
1506         if (mode == NL80211_IFTYPE_ADHOC) {
1507                 /* "privacy" is set only for ad-hoc mode */
1508                 if (privacy) {
1509                         /*
1510                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1511                          * the firmware can find a matching network from the
1512                          * scan. The cfg80211 does not give us the encryption
1513                          * mode at this stage so just setting it to WEP here.
1514                          */
1515                         priv->sec_info.encryption_mode =
1516                                         WLAN_CIPHER_SUITE_WEP104;
1517                         priv->sec_info.authentication_mode =
1518                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1519                 }
1520
1521                 goto done;
1522         }
1523
1524         /* Now handle infra mode. "sme" is valid for infra mode only */
1525         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1526                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1527                 priv->sec_info.is_authtype_auto = 1;
1528         } else {
1529                 auth_type = sme->auth_type;
1530         }
1531
1532         if (sme->crypto.n_ciphers_pairwise) {
1533                 priv->sec_info.encryption_mode =
1534                                                 sme->crypto.ciphers_pairwise[0];
1535                 priv->sec_info.authentication_mode = auth_type;
1536         }
1537
1538         if (sme->crypto.cipher_group) {
1539                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1540                 priv->sec_info.authentication_mode = auth_type;
1541         }
1542         if (sme->ie)
1543                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1544
1545         if (sme->key) {
1546                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1547                         dev_dbg(priv->adapter->dev,
1548                                 "info: setting wep encryption"
1549                                 " with key len %d\n", sme->key_len);
1550                         priv->wep_key_curr_index = sme->key_idx;
1551                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1552                                                  sme->key_len, sme->key_idx,
1553                                                  NULL, 0);
1554                 }
1555         }
1556 done:
1557         /*
1558          * Scan entries are valid for some time (15 sec). So we can save one
1559          * active scan time if we just try cfg80211_get_bss first. If it fails
1560          * then request scan and cfg80211_get_bss() again for final output.
1561          */
1562         while (1) {
1563                 if (is_scanning_required) {
1564                         /* Do specific SSID scanning */
1565                         if (mwifiex_request_scan(priv, &req_ssid)) {
1566                                 dev_err(priv->adapter->dev, "scan error\n");
1567                                 return -EFAULT;
1568                         }
1569                 }
1570
1571                 /* Find the BSS we want using available scan results */
1572                 if (mode == NL80211_IFTYPE_ADHOC)
1573                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1574                                                bssid, ssid, ssid_len,
1575                                                WLAN_CAPABILITY_IBSS,
1576                                                WLAN_CAPABILITY_IBSS);
1577                 else
1578                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1579                                                bssid, ssid, ssid_len,
1580                                                WLAN_CAPABILITY_ESS,
1581                                                WLAN_CAPABILITY_ESS);
1582
1583                 if (!bss) {
1584                         if (is_scanning_required) {
1585                                 dev_warn(priv->adapter->dev,
1586                                          "assoc: requested bss not found in scan results\n");
1587                                 break;
1588                         }
1589                         is_scanning_required = 1;
1590                 } else {
1591                         dev_dbg(priv->adapter->dev,
1592                                 "info: trying to associate to '%s' bssid %pM\n",
1593                                 (char *) req_ssid.ssid, bss->bssid);
1594                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1595                         break;
1596                 }
1597         }
1598
1599         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1600         if (ret)
1601                 return ret;
1602
1603         if (mode == NL80211_IFTYPE_ADHOC) {
1604                 /* Inform the BSS information to kernel, otherwise
1605                  * kernel will give a panic after successful assoc */
1606                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1607                         return -EFAULT;
1608         }
1609
1610         return ret;
1611 }
1612
1613 /*
1614  * CFG802.11 operation handler for association request.
1615  *
1616  * This function does not work when the current mode is set to Ad-Hoc, or
1617  * when there is already an association procedure going on. The given BSS
1618  * information is used to associate.
1619  */
1620 static int
1621 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1622                          struct cfg80211_connect_params *sme)
1623 {
1624         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1625         int ret = 0;
1626
1627         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1628                 wiphy_err(wiphy, "received infra assoc request "
1629                                 "when station is in ibss mode\n");
1630                 goto done;
1631         }
1632
1633         if (priv->bss_mode == NL80211_IFTYPE_AP) {
1634                 wiphy_err(wiphy, "skip association request for AP interface\n");
1635                 goto done;
1636         }
1637
1638         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1639                   (char *) sme->ssid, sme->bssid);
1640
1641         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1642                                      priv->bss_mode, sme->channel, sme, 0);
1643 done:
1644         if (!ret) {
1645                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1646                                         NULL, 0, WLAN_STATUS_SUCCESS,
1647                                         GFP_KERNEL);
1648                 dev_dbg(priv->adapter->dev,
1649                         "info: associated to bssid %pM successfully\n",
1650                         priv->cfg_bssid);
1651         } else {
1652                 dev_dbg(priv->adapter->dev,
1653                         "info: association to bssid %pM failed\n",
1654                         priv->cfg_bssid);
1655                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1656
1657                 if (ret > 0)
1658                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1659                                                 NULL, 0, NULL, 0, ret,
1660                                                 GFP_KERNEL);
1661                 else
1662                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1663                                                 NULL, 0, NULL, 0,
1664                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1665                                                 GFP_KERNEL);
1666         }
1667
1668         return 0;
1669 }
1670
1671 /*
1672  * This function sets following parameters for ibss network.
1673  *  -  channel
1674  *  -  start band
1675  *  -  11n flag
1676  *  -  secondary channel offset
1677  */
1678 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1679                                    struct cfg80211_ibss_params *params)
1680 {
1681         struct wiphy *wiphy = priv->wdev->wiphy;
1682         struct mwifiex_adapter *adapter = priv->adapter;
1683         int index = 0, i;
1684         u8 config_bands = 0;
1685
1686         if (params->channel->band == IEEE80211_BAND_2GHZ) {
1687                 if (!params->basic_rates) {
1688                         config_bands = BAND_B | BAND_G;
1689                 } else {
1690                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1691                                 /*
1692                                  * Rates below 6 Mbps in the table are CCK
1693                                  * rates; 802.11b and from 6 they are OFDM;
1694                                  * 802.11G
1695                                  */
1696                                 if (mwifiex_rates[i].bitrate == 60) {
1697                                         index = 1 << i;
1698                                         break;
1699                                 }
1700                         }
1701
1702                         if (params->basic_rates < index) {
1703                                 config_bands = BAND_B;
1704                         } else {
1705                                 config_bands = BAND_G;
1706                                 if (params->basic_rates % index)
1707                                         config_bands |= BAND_B;
1708                         }
1709                 }
1710
1711                 if (params->channel_type != NL80211_CHAN_NO_HT)
1712                         config_bands |= BAND_GN;
1713         } else {
1714                 if (params->channel_type == NL80211_CHAN_NO_HT)
1715                         config_bands = BAND_A;
1716                 else
1717                         config_bands = BAND_AN | BAND_A;
1718         }
1719
1720         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1721                 adapter->config_bands = config_bands;
1722                 adapter->adhoc_start_band = config_bands;
1723
1724                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1725                         adapter->adhoc_11n_enabled = true;
1726                 else
1727                         adapter->adhoc_11n_enabled = false;
1728         }
1729
1730         adapter->sec_chan_offset =
1731                 mwifiex_chan_type_to_sec_chan_offset(params->channel_type);
1732         priv->adhoc_channel =
1733                 ieee80211_frequency_to_channel(params->channel->center_freq);
1734
1735         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1736                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1737
1738         return 0;
1739 }
1740
1741 /*
1742  * CFG802.11 operation handler to join an IBSS.
1743  *
1744  * This function does not work in any mode other than Ad-Hoc, or if
1745  * a join operation is already in progress.
1746  */
1747 static int
1748 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1749                            struct cfg80211_ibss_params *params)
1750 {
1751         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1752         int ret = 0;
1753
1754         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1755                 wiphy_err(wiphy, "request to join ibss received "
1756                                 "when station is not in ibss mode\n");
1757                 goto done;
1758         }
1759
1760         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1761                   (char *) params->ssid, params->bssid);
1762
1763         mwifiex_set_ibss_params(priv, params);
1764
1765         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1766                                      params->bssid, priv->bss_mode,
1767                                      params->channel, NULL, params->privacy);
1768 done:
1769         if (!ret) {
1770                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1771                 dev_dbg(priv->adapter->dev,
1772                         "info: joined/created adhoc network with bssid"
1773                         " %pM successfully\n", priv->cfg_bssid);
1774         } else {
1775                 dev_dbg(priv->adapter->dev,
1776                         "info: failed creating/joining adhoc network\n");
1777         }
1778
1779         return ret;
1780 }
1781
1782 /*
1783  * CFG802.11 operation handler to leave an IBSS.
1784  *
1785  * This function does not work if a leave operation is
1786  * already in progress.
1787  */
1788 static int
1789 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1790 {
1791         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1792
1793         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1794                   priv->cfg_bssid);
1795         if (mwifiex_deauthenticate(priv, NULL))
1796                 return -EFAULT;
1797
1798         memset(priv->cfg_bssid, 0, ETH_ALEN);
1799
1800         return 0;
1801 }
1802
1803 /*
1804  * CFG802.11 operation handler for scan request.
1805  *
1806  * This function issues a scan request to the firmware based upon
1807  * the user specified scan configuration. On successfull completion,
1808  * it also informs the results.
1809  */
1810 static int
1811 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1812                       struct cfg80211_scan_request *request)
1813 {
1814         struct net_device *dev = request->wdev->netdev;
1815         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1816         int i, offset, ret;
1817         struct ieee80211_channel *chan;
1818         struct ieee_types_header *ie;
1819
1820         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1821
1822         if (atomic_read(&priv->wmm.tx_pkts_queued) >=
1823             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1824                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1825                 return -EBUSY;
1826         }
1827
1828         priv->scan_request = request;
1829
1830         priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1831                                       GFP_KERNEL);
1832         if (!priv->user_scan_cfg) {
1833                 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1834                 return -ENOMEM;
1835         }
1836
1837         priv->user_scan_cfg->num_ssids = request->n_ssids;
1838         priv->user_scan_cfg->ssid_list = request->ssids;
1839
1840         if (request->ie && request->ie_len) {
1841                 offset = 0;
1842                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1843                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1844                                 continue;
1845                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1846                         ie = (struct ieee_types_header *)(request->ie + offset);
1847                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1848                         offset += sizeof(*ie) + ie->len;
1849
1850                         if (offset >= request->ie_len)
1851                                 break;
1852                 }
1853         }
1854
1855         for (i = 0; i < request->n_channels; i++) {
1856                 chan = request->channels[i];
1857                 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1858                 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1859
1860                 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1861                         priv->user_scan_cfg->chan_list[i].scan_type =
1862                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1863                 else
1864                         priv->user_scan_cfg->chan_list[i].scan_type =
1865                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1866
1867                 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1868         }
1869
1870         ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
1871         if (ret) {
1872                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1873                 return ret;
1874         }
1875
1876         if (request->ie && request->ie_len) {
1877                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1878                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1879                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1880                                 memset(&priv->vs_ie[i].ie, 0,
1881                                        MWIFIEX_MAX_VSIE_LEN);
1882                         }
1883                 }
1884         }
1885         return 0;
1886 }
1887
1888 /*
1889  * This function sets up the CFG802.11 specific HT capability fields
1890  * with default values.
1891  *
1892  * The following default values are set -
1893  *      - HT Supported = True
1894  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1895  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1896  *      - HT Capabilities supported by firmware
1897  *      - MCS information, Rx mask = 0xff
1898  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1899  */
1900 static void
1901 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1902                       struct mwifiex_private *priv)
1903 {
1904         int rx_mcs_supp;
1905         struct ieee80211_mcs_info mcs_set;
1906         u8 *mcs = (u8 *)&mcs_set;
1907         struct mwifiex_adapter *adapter = priv->adapter;
1908
1909         ht_info->ht_supported = true;
1910         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1911         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1912
1913         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1914
1915         /* Fill HT capability information */
1916         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1917                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1918         else
1919                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1920
1921         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1922                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1923         else
1924                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1925
1926         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1927                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1928         else
1929                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1930
1931         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1932                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1933         else
1934                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1935
1936         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1937                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1938         else
1939                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1940
1941         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1942         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1943
1944         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1945         /* Set MCS for 1x1 */
1946         memset(mcs, 0xff, rx_mcs_supp);
1947         /* Clear all the other values */
1948         memset(&mcs[rx_mcs_supp], 0,
1949                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1950         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1951             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1952                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1953                 SETHT_MCS32(mcs_set.rx_mask);
1954
1955         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1956
1957         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1958 }
1959
1960 /*
1961  *  create a new virtual interface with the given name
1962  */
1963 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1964                                               const char *name,
1965                                               enum nl80211_iftype type,
1966                                               u32 *flags,
1967                                               struct vif_params *params)
1968 {
1969         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1970         struct mwifiex_private *priv;
1971         struct net_device *dev;
1972         void *mdev_priv;
1973         struct wireless_dev *wdev;
1974
1975         if (!adapter)
1976                 return ERR_PTR(-EFAULT);
1977
1978         switch (type) {
1979         case NL80211_IFTYPE_UNSPECIFIED:
1980         case NL80211_IFTYPE_STATION:
1981         case NL80211_IFTYPE_ADHOC:
1982                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1983                 if (priv->bss_mode) {
1984                         wiphy_err(wiphy,
1985                                   "cannot create multiple sta/adhoc ifaces\n");
1986                         return ERR_PTR(-EINVAL);
1987                 }
1988
1989                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1990                 if (!wdev)
1991                         return ERR_PTR(-ENOMEM);
1992
1993                 wdev->wiphy = wiphy;
1994                 priv->wdev = wdev;
1995                 wdev->iftype = NL80211_IFTYPE_STATION;
1996
1997                 if (type == NL80211_IFTYPE_UNSPECIFIED)
1998                         priv->bss_mode = NL80211_IFTYPE_STATION;
1999                 else
2000                         priv->bss_mode = type;
2001
2002                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2003                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2004                 priv->bss_priority = 0;
2005                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2006                 priv->bss_num = 0;
2007
2008                 break;
2009         case NL80211_IFTYPE_AP:
2010                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2011
2012                 if (priv->bss_mode) {
2013                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2014                         return ERR_PTR(-EINVAL);
2015                 }
2016
2017                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2018                 if (!wdev)
2019                         return ERR_PTR(-ENOMEM);
2020
2021                 priv->wdev = wdev;
2022                 wdev->wiphy = wiphy;
2023                 wdev->iftype = NL80211_IFTYPE_AP;
2024
2025                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2026                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2027                 priv->bss_priority = 0;
2028                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2029                 priv->bss_started = 0;
2030                 priv->bss_num = 0;
2031                 priv->bss_mode = type;
2032
2033                 break;
2034         case NL80211_IFTYPE_P2P_CLIENT:
2035                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2036
2037                 if (priv->bss_mode) {
2038                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2039                         return ERR_PTR(-EINVAL);
2040                 }
2041
2042                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2043                 if (!wdev)
2044                         return ERR_PTR(-ENOMEM);
2045
2046                 priv->wdev = wdev;
2047                 wdev->wiphy = wiphy;
2048
2049                 /* At start-up, wpa_supplicant tries to change the interface
2050                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2051                  * So, we initialize it to STA mode.
2052                  */
2053                 wdev->iftype = NL80211_IFTYPE_STATION;
2054                 priv->bss_mode = NL80211_IFTYPE_STATION;
2055
2056                 /* Setting bss_type to P2P tells firmware that this interface
2057                  * is receiving P2P peers found during find phase and doing
2058                  * action frame handshake.
2059                  */
2060                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2061
2062                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2063                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2064                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2065                 priv->bss_started = 0;
2066                 priv->bss_num = 0;
2067
2068                 break;
2069         default:
2070                 wiphy_err(wiphy, "type not supported\n");
2071                 return ERR_PTR(-EINVAL);
2072         }
2073
2074         dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
2075                               ether_setup, 1);
2076         if (!dev) {
2077                 wiphy_err(wiphy, "no memory available for netdevice\n");
2078                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2079                 return ERR_PTR(-ENOMEM);
2080         }
2081
2082         mwifiex_init_priv_params(priv, dev);
2083         priv->netdev = dev;
2084
2085         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2086
2087         if (adapter->config_bands & BAND_A)
2088                 mwifiex_setup_ht_caps(
2089                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2090
2091         dev_net_set(dev, wiphy_net(wiphy));
2092         dev->ieee80211_ptr = priv->wdev;
2093         dev->ieee80211_ptr->iftype = priv->bss_mode;
2094         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2095         memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
2096         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2097
2098         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2099         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2100         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2101
2102         mdev_priv = netdev_priv(dev);
2103         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2104
2105         SET_NETDEV_DEV(dev, adapter->dev);
2106
2107         /* Register network device */
2108         if (register_netdevice(dev)) {
2109                 wiphy_err(wiphy, "cannot register virtual network device\n");
2110                 free_netdev(dev);
2111                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2112                 return ERR_PTR(-EFAULT);
2113         }
2114
2115         sema_init(&priv->async_sem, 1);
2116         priv->scan_pending_on_block = false;
2117
2118         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2119
2120 #ifdef CONFIG_DEBUG_FS
2121         mwifiex_dev_debugfs_init(priv);
2122 #endif
2123         return wdev;
2124 }
2125 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2126
2127 /*
2128  * del_virtual_intf: remove the virtual interface determined by dev
2129  */
2130 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2131 {
2132         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2133
2134 #ifdef CONFIG_DEBUG_FS
2135         mwifiex_dev_debugfs_remove(priv);
2136 #endif
2137
2138         if (!netif_queue_stopped(priv->netdev))
2139                 netif_stop_queue(priv->netdev);
2140
2141         if (netif_carrier_ok(priv->netdev))
2142                 netif_carrier_off(priv->netdev);
2143
2144         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2145                 unregister_netdevice(wdev->netdev);
2146
2147         if (wdev->netdev->reg_state == NETREG_UNREGISTERED)
2148                 free_netdev(wdev->netdev);
2149
2150         /* Clear the priv in adapter */
2151         priv->netdev = NULL;
2152
2153         priv->media_connected = false;
2154
2155         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2156
2157         return 0;
2158 }
2159 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2160
2161 /* station cfg80211 operations */
2162 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2163         .add_virtual_intf = mwifiex_add_virtual_intf,
2164         .del_virtual_intf = mwifiex_del_virtual_intf,
2165         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2166         .scan = mwifiex_cfg80211_scan,
2167         .connect = mwifiex_cfg80211_connect,
2168         .disconnect = mwifiex_cfg80211_disconnect,
2169         .get_station = mwifiex_cfg80211_get_station,
2170         .dump_station = mwifiex_cfg80211_dump_station,
2171         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2172         .join_ibss = mwifiex_cfg80211_join_ibss,
2173         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2174         .add_key = mwifiex_cfg80211_add_key,
2175         .del_key = mwifiex_cfg80211_del_key,
2176         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2177         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2178         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2179         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2180         .set_default_key = mwifiex_cfg80211_set_default_key,
2181         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2182         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2183         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2184         .start_ap = mwifiex_cfg80211_start_ap,
2185         .stop_ap = mwifiex_cfg80211_stop_ap,
2186         .change_beacon = mwifiex_cfg80211_change_beacon,
2187         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2188         .set_antenna = mwifiex_cfg80211_set_antenna,
2189 };
2190
2191 /*
2192  * This function registers the device with CFG802.11 subsystem.
2193  *
2194  * The function creates the wireless device/wiphy, populates it with
2195  * default parameters and handler function pointers, and finally
2196  * registers the device.
2197  */
2198
2199 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2200 {
2201         int ret;
2202         void *wdev_priv;
2203         struct wiphy *wiphy;
2204         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2205         u8 *country_code;
2206
2207         /* create a new wiphy for use with cfg80211 */
2208         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2209                           sizeof(struct mwifiex_adapter *));
2210         if (!wiphy) {
2211                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2212                 return -ENOMEM;
2213         }
2214         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2215         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2216         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2217         wiphy->max_remain_on_channel_duration = 5000;
2218         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2219                                  BIT(NL80211_IFTYPE_ADHOC) |
2220                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2221                                  BIT(NL80211_IFTYPE_P2P_GO) |
2222                                  BIT(NL80211_IFTYPE_AP);
2223
2224         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2225         if (adapter->config_bands & BAND_A)
2226                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2227         else
2228                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2229
2230         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2231         wiphy->n_iface_combinations = 1;
2232
2233         /* Initialize cipher suits */
2234         wiphy->cipher_suites = mwifiex_cipher_suites;
2235         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2236
2237         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2238         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2239         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2240                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2241                         WIPHY_FLAG_CUSTOM_REGULATORY |
2242                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2243
2244         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2245
2246         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2247                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2248                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2249
2250         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2251         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2252
2253         wiphy->features = NL80211_FEATURE_HT_IBSS |
2254                           NL80211_FEATURE_INACTIVITY_TIMER;
2255
2256         /* Reserve space for mwifiex specific private data for BSS */
2257         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2258
2259         wiphy->reg_notifier = mwifiex_reg_notifier;
2260
2261         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2262         wdev_priv = wiphy_priv(wiphy);
2263         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2264
2265         set_wiphy_dev(wiphy, priv->adapter->dev);
2266
2267         ret = wiphy_register(wiphy);
2268         if (ret < 0) {
2269                 dev_err(adapter->dev,
2270                         "%s: wiphy_register failed: %d\n", __func__, ret);
2271                 wiphy_free(wiphy);
2272                 return ret;
2273         }
2274         country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
2275         if (country_code)
2276                 dev_info(adapter->dev,
2277                          "ignoring F/W country code %2.2s\n", country_code);
2278
2279         adapter->wiphy = wiphy;
2280         return ret;
2281 }