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                          unsigned int wait, const u8 *buf, size_t len,
 184                          bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 185 {
 186         struct sk_buff *skb;
 187         u16 pkt_len;
 188         const struct ieee80211_mgmt *mgmt;
 189         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 190
 191         if (!buf || !len) {
 192                 wiphy_err(wiphy, "invalid buffer and length\n");
 193                 return -EFAULT;
 194         }
 195
 196         mgmt = (const struct ieee80211_mgmt *)buf;
 197         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 198             ieee80211_is_probe_resp(mgmt->frame_control)) {
 199                 /* Since we support offload probe resp, we need to skip probe
 200                  * resp in AP or GO mode */
 201                 wiphy_dbg(wiphy,
 202                           "info: skip to send probe resp in AP or GO mode\n");
 203                 return 0;
 204         }
 205
 206         pkt_len = len + ETH_ALEN;
 207         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 208                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 209                             pkt_len + sizeof(pkt_len));
 210
 211         if (!skb) {
 212                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 213                 return -ENOMEM;
 214         }
 215
 216         mwifiex_form_mgmt_frame(skb, buf, len);
 217         mwifiex_queue_tx_pkt(priv, skb);
 218
 219         *cookie = random32() | 1;
 220         cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
 221
 222         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 223         return 0;
 224 }
 225
 226 /*
 227  * CFG802.11 operation handler to register a mgmt frame.
 228  */
 229 static void
 230 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 231                                      struct wireless_dev *wdev,
 232                                      u16 frame_type, bool reg)
 233 {
 234         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 235
 236         if (reg)
 237                 priv->mgmt_frame_mask |= BIT(frame_type >> 4);
 238         else
 239                 priv->mgmt_frame_mask &= ~BIT(frame_type >> 4);
 240
 241         mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
 242                                HostCmd_ACT_GEN_SET, 0, &priv->mgmt_frame_mask);
 243
 244         wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 245 }
 246
 247 /*
 248  * CFG802.11 operation handler to remain on channel.
 249  */
 250 static int
 251 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 252                                    struct wireless_dev *wdev,
 253                                    struct ieee80211_channel *chan,
 254                                    unsigned int duration, u64 *cookie)
 255 {
 256         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 257         int ret;
 258
 259         if (!chan || !cookie) {
 260                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 261                 return -EINVAL;
 262         }
 263
 264         if (priv->roc_cfg.cookie) {
 265                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
 266                           priv->roc_cfg.cookie);
 267                 return -EBUSY;
 268         }
 269
 270         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 271                                          duration);
 272
 273         if (!ret) {
 274                 *cookie = random32() | 1;
 275                 priv->roc_cfg.cookie = *cookie;
 276                 priv->roc_cfg.chan = *chan;
 277
 278                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 279                                           duration, GFP_ATOMIC);
 280
 281                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 282         }
 283
 284         return ret;
 285 }
 286
 287 /*
 288  * CFG802.11 operation handler to cancel remain on channel.
 289  */
 290 static int
 291 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 292                                           struct wireless_dev *wdev, u64 cookie)
 293 {
 294         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 295         int ret;
 296
 297         if (cookie != priv->roc_cfg.cookie)
 298                 return -ENOENT;
 299
 300         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 301                                          &priv->roc_cfg.chan, 0);
 302
 303         if (!ret) {
 304                 cfg80211_remain_on_channel_expired(wdev, cookie,
 305                                                    &priv->roc_cfg.chan,
 306                                                    GFP_ATOMIC);
 307
 308                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 309
 310                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 311         }
 312
 313         return ret;
 314 }
 315
 316 /*
 317  * CFG802.11 operation handler to set Tx power.
 318  */
 319 static int
 320 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 321                               struct wireless_dev *wdev,
 322                               enum nl80211_tx_power_setting type,
 323                               int mbm)
 324 {
 325         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 326         struct mwifiex_private *priv;
 327         struct mwifiex_power_cfg power_cfg;
 328         int dbm = MBM_TO_DBM(mbm);
 329
 330         if (type == NL80211_TX_POWER_FIXED) {
 331                 power_cfg.is_power_auto = 0;
 332                 power_cfg.power_level = dbm;
 333         } else {
 334                 power_cfg.is_power_auto = 1;
 335         }
 336
 337         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 338
 339         return mwifiex_set_tx_power(priv, &power_cfg);
 340 }
 341
 342 /*
 343  * CFG802.11 operation handler to set Power Save option.
 344  *
 345  * The timeout value, if provided, is currently ignored.
 346  */
 347 static int
 348 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 349                                 struct net_device *dev,
 350                                 bool enabled, int timeout)
 351 {
 352         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 353         u32 ps_mode;
 354
 355         if (timeout)
 356                 wiphy_dbg(wiphy,
 357                           "info: ignore timeout value for IEEE Power Save\n");
 358
 359         ps_mode = enabled;
 360
 361         return mwifiex_drv_set_power(priv, &ps_mode);
 362 }
 363
 364 /*
 365  * CFG802.11 operation handler to set the default network key.
 366  */
 367 static int
 368 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 369                                  u8 key_index, bool unicast,
 370                                  bool multicast)
 371 {
 372         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 373
 374         /* Return if WEP key not configured */
 375         if (!priv->sec_info.wep_enabled)
 376                 return 0;
 377
 378         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 379                 priv->wep_key_curr_index = key_index;
 380         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 381                                       NULL, 0)) {
 382                 wiphy_err(wiphy, "set default Tx key index\n");
 383                 return -EFAULT;
 384         }
 385
 386         return 0;
 387 }
 388
 389 /*
 390  * CFG802.11 operation handler to add a network key.
 391  */
 392 static int
 393 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 394                          u8 key_index, bool pairwise, const u8 *mac_addr,
 395                          struct key_params *params)
 396 {
 397         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 398         struct mwifiex_wep_key *wep_key;
 399         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 400         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 401
 402         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 403             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 404              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 405                 if (params->key && params->key_len) {
 406                         wep_key = &priv->wep_key[key_index];
 407                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 408                         memcpy(wep_key->key_material, params->key,
 409                                params->key_len);
 410                         wep_key->key_index = key_index;
 411                         wep_key->key_length = params->key_len;
 412                         priv->sec_info.wep_enabled = 1;
 413                 }
 414                 return 0;
 415         }
 416
 417         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 418                                key_index, peer_mac, 0)) {
 419                 wiphy_err(wiphy, "crypto keys added\n");
 420                 return -EFAULT;
 421         }
 422
 423         return 0;
 424 }
 425
 426 /*
 427  * This function sends domain information to the firmware.
 428  *
 429  * The following information are passed to the firmware -
 430  *      - Country codes
 431  *      - Sub bands (first channel, number of channels, maximum Tx power)
 432  */
 433 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 434 {
 435         u8 no_of_triplet = 0;
 436         struct ieee80211_country_ie_triplet *t;
 437         u8 no_of_parsed_chan = 0;
 438         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 439         u8 i, flag = 0;
 440         enum ieee80211_band band;
 441         struct ieee80211_supported_band *sband;
 442         struct ieee80211_channel *ch;
 443         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 444         struct mwifiex_private *priv;
 445         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 446
 447         /* Set country code */
 448         domain_info->country_code[0] = adapter->country_code[0];
 449         domain_info->country_code[1] = adapter->country_code[1];
 450         domain_info->country_code[2] = ' ';
 451
 452         band = mwifiex_band_to_radio_type(adapter->config_bands);
 453         if (!wiphy->bands[band]) {
 454                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 455                 return -1;
 456         }
 457
 458         sband = wiphy->bands[band];
 459
 460         for (i = 0; i < sband->n_channels ; i++) {
 461                 ch = &sband->channels[i];
 462                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 463                         continue;
 464
 465                 if (!flag) {
 466                         flag = 1;
 467                         first_chan = (u32) ch->hw_value;
 468                         next_chan = first_chan;
 469                         max_pwr = ch->max_power;
 470                         no_of_parsed_chan = 1;
 471                         continue;
 472                 }
 473
 474                 if (ch->hw_value == next_chan + 1 &&
 475                     ch->max_power == max_pwr) {
 476                         next_chan++;
 477                         no_of_parsed_chan++;
 478                 } else {
 479                         t = &domain_info->triplet[no_of_triplet];
 480                         t->chans.first_channel = first_chan;
 481                         t->chans.num_channels = no_of_parsed_chan;
 482                         t->chans.max_power = max_pwr;
 483                         no_of_triplet++;
 484                         first_chan = (u32) ch->hw_value;
 485                         next_chan = first_chan;
 486                         max_pwr = ch->max_power;
 487                         no_of_parsed_chan = 1;
 488                 }
 489         }
 490
 491         if (flag) {
 492                 t = &domain_info->triplet[no_of_triplet];
 493                 t->chans.first_channel = first_chan;
 494                 t->chans.num_channels = no_of_parsed_chan;
 495                 t->chans.max_power = max_pwr;
 496                 no_of_triplet++;
 497         }
 498
 499         domain_info->no_of_triplet = no_of_triplet;
 500
 501         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 502
 503         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 504                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 505                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 506                 return -1;
 507         }
 508
 509         return 0;
 510 }
 511
 512 /*
 513  * CFG802.11 regulatory domain callback function.
 514  *
 515  * This function is called when the regulatory domain is changed due to the
 516  * following reasons -
 517  *      - Set by driver
 518  *      - Set by system core
 519  *      - Set by user
 520  *      - Set bt Country IE
 521  */
 522 static int mwifiex_reg_notifier(struct wiphy *wiphy,
 523                                 struct regulatory_request *request)
 524 {
 525         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 526
 527         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 528                   request->alpha2[0], request->alpha2[1]);
 529
 530         memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
 531
 532         switch (request->initiator) {
 533         case NL80211_REGDOM_SET_BY_DRIVER:
 534         case NL80211_REGDOM_SET_BY_CORE:
 535         case NL80211_REGDOM_SET_BY_USER:
 536                 break;
 537                 /* Todo: apply driver specific changes in channel flags based
 538                    on the request initiator if necessary. */
 539         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 540                 break;
 541         }
 542         mwifiex_send_domain_info_cmd_fw(wiphy);
 543
 544         return 0;
 545 }
 546
 547 /*
 548  * This function sets the fragmentation threshold.
 549  *
 550  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 551  * and MWIFIEX_FRAG_MAX_VALUE.
 552  */
 553 static int
 554 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 555 {
 556         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 557             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 558                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 559
 560         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 561                                      HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 562                                      &frag_thr);
 563 }
 564
 565 /*
 566  * This function sets the RTS threshold.
 567
 568  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 569  * and MWIFIEX_RTS_MAX_VALUE.
 570  */
 571 static int
 572 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 573 {
 574         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 575                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 576
 577         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 578                                     HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 579                                     &rts_thr);
 580 }
 581
 582 /*
 583  * CFG802.11 operation handler to set wiphy parameters.
 584  *
 585  * This function can be used to set the RTS threshold and the
 586  * Fragmentation threshold of the driver.
 587  */
 588 static int
 589 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 590 {
 591         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 592         struct mwifiex_private *priv;
 593         struct mwifiex_uap_bss_param *bss_cfg;
 594         int ret, bss_started, i;
 595
 596         for (i = 0; i < adapter->priv_num; i++) {
 597                 priv = adapter->priv[i];
 598
 599                 switch (priv->bss_role) {
 600                 case MWIFIEX_BSS_ROLE_UAP:
 601                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 602                                           GFP_KERNEL);
 603                         if (!bss_cfg)
 604                                 return -ENOMEM;
 605
 606                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 607
 608                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 609                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 610                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 611                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 612                         if (changed & WIPHY_PARAM_RETRY_LONG)
 613                                 bss_cfg->retry_limit = wiphy->retry_long;
 614
 615                         bss_started = priv->bss_started;
 616
 617                         ret = mwifiex_send_cmd_sync(priv,
 618                                                     HostCmd_CMD_UAP_BSS_STOP,
 619                                                     HostCmd_ACT_GEN_SET, 0,
 620                                                     NULL);
 621                         if (ret) {
 622                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 623                                 kfree(bss_cfg);
 624                                 return ret;
 625                         }
 626
 627                         ret = mwifiex_send_cmd_async(priv,
 628                                                      HostCmd_CMD_UAP_SYS_CONFIG,
 629                                                      HostCmd_ACT_GEN_SET,
 630                                                      UAP_BSS_PARAMS_I, bss_cfg);
 631
 632                         kfree(bss_cfg);
 633
 634                         if (ret) {
 635                                 wiphy_err(wiphy, "Failed to set bss config\n");
 636                                 return ret;
 637                         }
 638
 639                         if (!bss_started)
 640                                 break;
 641
 642                         ret = mwifiex_send_cmd_async(priv,
 643                                                      HostCmd_CMD_UAP_BSS_START,
 644                                                      HostCmd_ACT_GEN_SET, 0,
 645                                                      NULL);
 646                         if (ret) {
 647                                 wiphy_err(wiphy, "Failed to start BSS\n");
 648                                 return ret;
 649                         }
 650
 651                         break;
 652                 case MWIFIEX_BSS_ROLE_STA:
 653                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 654                                 ret = mwifiex_set_rts(priv,
 655                                                       wiphy->rts_threshold);
 656                                 if (ret)
 657                                         return ret;
 658                         }
 659                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 660                                 ret = mwifiex_set_frag(priv,
 661                                                        wiphy->frag_threshold);
 662                                 if (ret)
 663                                         return ret;
 664                         }
 665                         break;
 666                 }
 667         }
 668
 669         return 0;
 670 }
 671
 672 static int
 673 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 674 {
 675         u16 mode = P2P_MODE_DISABLE;
 676
 677         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 678                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 679
 680         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 681                                   HostCmd_ACT_GEN_SET, 0, &mode))
 682                 return -1;
 683
 684         return 0;
 685 }
 686
 687 /*
 688  * This function initializes the functionalities for P2P client.
 689  * The P2P client initialization sequence is:
 690  * disable -> device -> client
 691  */
 692 static int
 693 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 694 {
 695         u16 mode;
 696
 697         if (mwifiex_cfg80211_deinit_p2p(priv))
 698                 return -1;
 699
 700         mode = P2P_MODE_DEVICE;
 701         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 702                                   HostCmd_ACT_GEN_SET, 0, &mode))
 703                 return -1;
 704
 705         mode = P2P_MODE_CLIENT;
 706         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 707                                   HostCmd_ACT_GEN_SET, 0, &mode))
 708                 return -1;
 709
 710         return 0;
 711 }
 712
 713 /*
 714  * This function initializes the functionalities for P2P GO.
 715  * The P2P GO initialization sequence is:
 716  * disable -> device -> GO
 717  */
 718 static int
 719 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 720 {
 721         u16 mode;
 722
 723         if (mwifiex_cfg80211_deinit_p2p(priv))
 724                 return -1;
 725
 726         mode = P2P_MODE_DEVICE;
 727         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 728                                   HostCmd_ACT_GEN_SET, 0, &mode))
 729                 return -1;
 730
 731         mode = P2P_MODE_GO;
 732         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 733                                   HostCmd_ACT_GEN_SET, 0, &mode))
 734                 return -1;
 735
 736         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 737                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 738
 739         return 0;
 740 }
 741
 742 /*
 743  * CFG802.11 operation handler to change interface type.
 744  */
 745 static int
 746 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 747                                      struct net_device *dev,
 748                                      enum nl80211_iftype type, u32 *flags,
 749                                      struct vif_params *params)
 750 {
 751         int ret;
 752         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 753
 754         switch (dev->ieee80211_ptr->iftype) {
 755         case NL80211_IFTYPE_ADHOC:
 756                 switch (type) {
 757                 case NL80211_IFTYPE_STATION:
 758                         break;
 759                 case NL80211_IFTYPE_UNSPECIFIED:
 760                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 761                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 762                         return 0;
 763                 case NL80211_IFTYPE_AP:
 764                 default:
 765                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 766                                   dev->name, type);
 767                         return -EOPNOTSUPP;
 768                 }
 769                 break;
 770         case NL80211_IFTYPE_STATION:
 771                 switch (type) {
 772                 case NL80211_IFTYPE_ADHOC:
 773                         break;
 774                 case NL80211_IFTYPE_P2P_CLIENT:
 775                         if (mwifiex_cfg80211_init_p2p_client(priv))
 776                                 return -EFAULT;
 777                         dev->ieee80211_ptr->iftype = type;
 778                         return 0;
 779                 case NL80211_IFTYPE_P2P_GO:
 780                         if (mwifiex_cfg80211_init_p2p_go(priv))
 781                                 return -EFAULT;
 782                         dev->ieee80211_ptr->iftype = type;
 783                         return 0;
 784                 case NL80211_IFTYPE_UNSPECIFIED:
 785                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 786                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 787                         return 0;
 788                 case NL80211_IFTYPE_AP:
 789                 default:
 790                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 791                                   dev->name, type);
 792                         return -EOPNOTSUPP;
 793                 }
 794                 break;
 795         case NL80211_IFTYPE_AP:
 796                 switch (type) {
 797                 case NL80211_IFTYPE_UNSPECIFIED:
 798                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 799                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 800                         return 0;
 801                 case NL80211_IFTYPE_ADHOC:
 802                 case NL80211_IFTYPE_STATION:
 803                 default:
 804                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 805                                   dev->name, type);
 806                         return -EOPNOTSUPP;
 807                 }
 808                 break;
 809         case NL80211_IFTYPE_P2P_CLIENT:
 810         case NL80211_IFTYPE_P2P_GO:
 811                 switch (type) {
 812                 case NL80211_IFTYPE_STATION:
 813                         if (mwifiex_cfg80211_deinit_p2p(priv))
 814                                 return -EFAULT;
 815                         dev->ieee80211_ptr->iftype = type;
 816                         return 0;
 817                 default:
 818                         return -EOPNOTSUPP;
 819                 }
 820                 break;
 821         default:
 822                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 823                           dev->name, dev->ieee80211_ptr->iftype);
 824                 return -EOPNOTSUPP;
 825         }
 826
 827         dev->ieee80211_ptr->iftype = type;
 828         priv->bss_mode = type;
 829         mwifiex_deauthenticate(priv, NULL);
 830
 831         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 832
 833         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
 834                                     HostCmd_ACT_GEN_SET, 0, NULL);
 835
 836         return ret;
 837 }
 838
 839 /*
 840  * This function dumps the station information on a buffer.
 841  *
 842  * The following information are shown -
 843  *      - Total bytes transmitted
 844  *      - Total bytes received
 845  *      - Total packets transmitted
 846  *      - Total packets received
 847  *      - Signal quality level
 848  *      - Transmission rate
 849  */
 850 static int
 851 mwifiex_dump_station_info(struct mwifiex_private *priv,
 852                           struct station_info *sinfo)
 853 {
 854         u32 rate;
 855
 856         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 857                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 858                         STATION_INFO_TX_BITRATE |
 859                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 860
 861         /* Get signal information from the firmware */
 862         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 863                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 864                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 865                 return -EFAULT;
 866         }
 867
 868         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 869                 dev_err(priv->adapter->dev, "getting data rate\n");
 870                 return -EFAULT;
 871         }
 872
 873         /* Get DTIM period information from firmware */
 874         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 875                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 876                               &priv->dtim_period);
 877
 878         /*
 879          * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
 880          * MCS index values for us are 0 to 15.
 881          */
 882         if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 883                 sinfo->txrate.mcs = priv->tx_rate;
 884                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 885                 /* 40MHz rate */
 886                 if (priv->tx_htinfo & BIT(1))
 887                         sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 888                 /* SGI enabled */
 889                 if (priv->tx_htinfo & BIT(2))
 890                         sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 891         }
 892
 893         sinfo->signal_avg = priv->bcn_rssi_avg;
 894         sinfo->rx_bytes = priv->stats.rx_bytes;
 895         sinfo->tx_bytes = priv->stats.tx_bytes;
 896         sinfo->rx_packets = priv->stats.rx_packets;
 897         sinfo->tx_packets = priv->stats.tx_packets;
 898         sinfo->signal = priv->bcn_rssi_avg;
 899         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 900         sinfo->txrate.legacy = rate * 5;
 901
 902         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 903                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 904                 sinfo->bss_param.flags = 0;
 905                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 906                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 907                         sinfo->bss_param.flags |=
 908                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 909                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 910                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 911                         sinfo->bss_param.flags |=
 912                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 913                 sinfo->bss_param.dtim_period = priv->dtim_period;
 914                 sinfo->bss_param.beacon_interval =
 915                         priv->curr_bss_params.bss_descriptor.beacon_period;
 916         }
 917
 918         return 0;
 919 }
 920
 921 /*
 922  * CFG802.11 operation handler to get station information.
 923  *
 924  * This function only works in connected mode, and dumps the
 925  * requested station information, if available.
 926  */
 927 static int
 928 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 929                              u8 *mac, struct station_info *sinfo)
 930 {
 931         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 932
 933         if (!priv->media_connected)
 934                 return -ENOENT;
 935         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 936                 return -ENOENT;
 937
 938         return mwifiex_dump_station_info(priv, sinfo);
 939 }
 940
 941 /*
 942  * CFG802.11 operation handler to dump station information.
 943  */
 944 static int
 945 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 946                               int idx, u8 *mac, struct station_info *sinfo)
 947 {
 948         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 949
 950         if (!priv->media_connected || idx)
 951                 return -ENOENT;
 952
 953         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 954
 955         return mwifiex_dump_station_info(priv, sinfo);
 956 }
 957
 958 /* Supported rates to be advertised to the cfg80211 */
 959 static struct ieee80211_rate mwifiex_rates[] = {
 960         {.bitrate = 10, .hw_value = 2, },
 961         {.bitrate = 20, .hw_value = 4, },
 962         {.bitrate = 55, .hw_value = 11, },
 963         {.bitrate = 110, .hw_value = 22, },
 964         {.bitrate = 60, .hw_value = 12, },
 965         {.bitrate = 90, .hw_value = 18, },
 966         {.bitrate = 120, .hw_value = 24, },
 967         {.bitrate = 180, .hw_value = 36, },
 968         {.bitrate = 240, .hw_value = 48, },
 969         {.bitrate = 360, .hw_value = 72, },
 970         {.bitrate = 480, .hw_value = 96, },
 971         {.bitrate = 540, .hw_value = 108, },
 972 };
 973
 974 /* Channel definitions to be advertised to cfg80211 */
 975 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
 976         {.center_freq = 2412, .hw_value = 1, },
 977         {.center_freq = 2417, .hw_value = 2, },
 978         {.center_freq = 2422, .hw_value = 3, },
 979         {.center_freq = 2427, .hw_value = 4, },
 980         {.center_freq = 2432, .hw_value = 5, },
 981         {.center_freq = 2437, .hw_value = 6, },
 982         {.center_freq = 2442, .hw_value = 7, },
 983         {.center_freq = 2447, .hw_value = 8, },
 984         {.center_freq = 2452, .hw_value = 9, },
 985         {.center_freq = 2457, .hw_value = 10, },
 986         {.center_freq = 2462, .hw_value = 11, },
 987         {.center_freq = 2467, .hw_value = 12, },
 988         {.center_freq = 2472, .hw_value = 13, },
 989         {.center_freq = 2484, .hw_value = 14, },
 990 };
 991
 992 static struct ieee80211_supported_band mwifiex_band_2ghz = {
 993         .channels = mwifiex_channels_2ghz,
 994         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
 995         .bitrates = mwifiex_rates,
 996         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
 997 };
 998
 999 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1000         {.center_freq = 5040, .hw_value = 8, },
1001         {.center_freq = 5060, .hw_value = 12, },
1002         {.center_freq = 5080, .hw_value = 16, },
1003         {.center_freq = 5170, .hw_value = 34, },
1004         {.center_freq = 5190, .hw_value = 38, },
1005         {.center_freq = 5210, .hw_value = 42, },
1006         {.center_freq = 5230, .hw_value = 46, },
1007         {.center_freq = 5180, .hw_value = 36, },
1008         {.center_freq = 5200, .hw_value = 40, },
1009         {.center_freq = 5220, .hw_value = 44, },
1010         {.center_freq = 5240, .hw_value = 48, },
1011         {.center_freq = 5260, .hw_value = 52, },
1012         {.center_freq = 5280, .hw_value = 56, },
1013         {.center_freq = 5300, .hw_value = 60, },
1014         {.center_freq = 5320, .hw_value = 64, },
1015         {.center_freq = 5500, .hw_value = 100, },
1016         {.center_freq = 5520, .hw_value = 104, },
1017         {.center_freq = 5540, .hw_value = 108, },
1018         {.center_freq = 5560, .hw_value = 112, },
1019         {.center_freq = 5580, .hw_value = 116, },
1020         {.center_freq = 5600, .hw_value = 120, },
1021         {.center_freq = 5620, .hw_value = 124, },
1022         {.center_freq = 5640, .hw_value = 128, },
1023         {.center_freq = 5660, .hw_value = 132, },
1024         {.center_freq = 5680, .hw_value = 136, },
1025         {.center_freq = 5700, .hw_value = 140, },
1026         {.center_freq = 5745, .hw_value = 149, },
1027         {.center_freq = 5765, .hw_value = 153, },
1028         {.center_freq = 5785, .hw_value = 157, },
1029         {.center_freq = 5805, .hw_value = 161, },
1030         {.center_freq = 5825, .hw_value = 165, },
1031 };
1032
1033 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1034         .channels = mwifiex_channels_5ghz,
1035         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1036         .bitrates = mwifiex_rates + 4,
1037         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1038 };
1039
1040
1041 /* Supported crypto cipher suits to be advertised to cfg80211 */
1042 static const u32 mwifiex_cipher_suites[] = {
1043         WLAN_CIPHER_SUITE_WEP40,
1044         WLAN_CIPHER_SUITE_WEP104,
1045         WLAN_CIPHER_SUITE_TKIP,
1046         WLAN_CIPHER_SUITE_CCMP,
1047         WLAN_CIPHER_SUITE_AES_CMAC,
1048 };
1049
1050 /* Supported mgmt frame types to be advertised to cfg80211 */
1051 static const struct ieee80211_txrx_stypes
1052 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1053         [NL80211_IFTYPE_STATION] = {
1054                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1055                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1056                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1057                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1058         },
1059         [NL80211_IFTYPE_AP] = {
1060                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1061                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1062                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1063                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1064         },
1065         [NL80211_IFTYPE_P2P_CLIENT] = {
1066                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1067                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1068                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1069                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1070         },
1071         [NL80211_IFTYPE_P2P_GO] = {
1072                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1073                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1074                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1075                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1076         },
1077 };
1078
1079 /*
1080  * CFG802.11 operation handler for setting bit rates.
1081  *
1082  * Function configures data rates to firmware using bitrate mask
1083  * provided by cfg80211.
1084  */
1085 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1086                                 struct net_device *dev,
1087                                 const u8 *peer,
1088                                 const struct cfg80211_bitrate_mask *mask)
1089 {
1090         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1091         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1092         enum ieee80211_band band;
1093
1094         if (!priv->media_connected) {
1095                 dev_err(priv->adapter->dev,
1096                         "Can not set Tx data rate in disconnected state\n");
1097                 return -EINVAL;
1098         }
1099
1100         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1101
1102         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1103
1104         /* Fill HR/DSSS rates. */
1105         if (band == IEEE80211_BAND_2GHZ)
1106                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1107
1108         /* Fill OFDM rates */
1109         if (band == IEEE80211_BAND_2GHZ)
1110                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1111         else
1112                 bitmap_rates[1] = mask->control[band].legacy;
1113
1114         /* Fill MCS rates */
1115         bitmap_rates[2] = mask->control[band].mcs[0];
1116         if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1117                 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
1118
1119         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1120                                      HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1121 }
1122
1123 /*
1124  * CFG802.11 operation handler for connection quality monitoring.
1125  *
1126  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1127  * events to FW.
1128  */
1129 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1130                                                 struct net_device *dev,
1131                                                 s32 rssi_thold, u32 rssi_hyst)
1132 {
1133         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1134         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1135
1136         priv->cqm_rssi_thold = rssi_thold;
1137         priv->cqm_rssi_hyst = rssi_hyst;
1138
1139         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1140         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1141
1142         /* Subscribe/unsubscribe low and high rssi events */
1143         if (rssi_thold && rssi_hyst) {
1144                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1145                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1146                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1147                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1148                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1149                 return mwifiex_send_cmd_sync(priv,
1150                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1151                                              0, 0, &subsc_evt);
1152         } else {
1153                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1154                 return mwifiex_send_cmd_sync(priv,
1155                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1156                                              0, 0, &subsc_evt);
1157         }
1158
1159         return 0;
1160 }
1161
1162 /* cfg80211 operation handler for change_beacon.
1163  * Function retrieves and sets modified management IEs to FW.
1164  */
1165 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1166                                           struct net_device *dev,
1167                                           struct cfg80211_beacon_data *data)
1168 {
1169         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1170
1171         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1172                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1173                 return -EINVAL;
1174         }
1175
1176         if (!priv->bss_started) {
1177                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1178                 return -EINVAL;
1179         }
1180
1181         if (mwifiex_set_mgmt_ies(priv, data)) {
1182                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1183                 return -EFAULT;
1184         }
1185
1186         return 0;
1187 }
1188
1189 static int
1190 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1191 {
1192         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1193         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1194                                                         MWIFIEX_BSS_ROLE_ANY);
1195         struct mwifiex_ds_ant_cfg ant_cfg;
1196
1197         if (!tx_ant || !rx_ant)
1198                 return -EOPNOTSUPP;
1199
1200         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1201                 /* Not a MIMO chip. User should provide specific antenna number
1202                  * for Tx/Rx path or enable all antennas for diversity
1203                  */
1204                 if (tx_ant != rx_ant)
1205                         return -EOPNOTSUPP;
1206
1207                 if ((tx_ant & (tx_ant - 1)) &&
1208                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1209                         return -EOPNOTSUPP;
1210
1211                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1212                     (priv->adapter->number_of_antenna > 1)) {
1213                         tx_ant = RF_ANTENNA_AUTO;
1214                         rx_ant = RF_ANTENNA_AUTO;
1215                 }
1216         }
1217
1218         ant_cfg.tx_ant = tx_ant;
1219         ant_cfg.rx_ant = rx_ant;
1220
1221         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1222                                      HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1223 }
1224
1225 /* cfg80211 operation handler for stop ap.
1226  * Function stops BSS running at uAP interface.
1227  */
1228 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1229 {
1230         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1231
1232         if (mwifiex_del_mgmt_ies(priv))
1233                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1234
1235         priv->ap_11n_enabled = 0;
1236
1237         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1238                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1239                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1240                 return -1;
1241         }
1242
1243         return 0;
1244 }
1245
1246 /* cfg80211 operation handler for start_ap.
1247  * Function sets beacon period, DTIM period, SSID and security into
1248  * AP config structure.
1249  * AP is configured with these settings and BSS is started.
1250  */
1251 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1252                                      struct net_device *dev,
1253                                      struct cfg80211_ap_settings *params)
1254 {
1255         struct mwifiex_uap_bss_param *bss_cfg;
1256         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1257         u8 config_bands = 0;
1258
1259         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1260                 return -1;
1261         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1262                 return -1;
1263
1264         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1265         if (!bss_cfg)
1266                 return -ENOMEM;
1267
1268         mwifiex_set_sys_config_invalid_data(bss_cfg);
1269
1270         if (params->beacon_interval)
1271                 bss_cfg->beacon_period = params->beacon_interval;
1272         if (params->dtim_period)
1273                 bss_cfg->dtim_period = params->dtim_period;
1274
1275         if (params->ssid && params->ssid_len) {
1276                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1277                 bss_cfg->ssid.ssid_len = params->ssid_len;
1278         }
1279
1280         switch (params->hidden_ssid) {
1281         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1282                 bss_cfg->bcast_ssid_ctl = 1;
1283                 break;
1284         case NL80211_HIDDEN_SSID_ZERO_LEN:
1285                 bss_cfg->bcast_ssid_ctl = 0;
1286                 break;
1287         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1288                 /* firmware doesn't support this type of hidden SSID */
1289         default:
1290                 kfree(bss_cfg);
1291                 return -EINVAL;
1292         }
1293
1294         bss_cfg->channel = ieee80211_frequency_to_channel(
1295                                 params->chandef.chan->center_freq);
1296
1297         /* Set appropriate bands */
1298         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1299                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1300
1301                 if (cfg80211_get_chandef_type(&params->chandef) ==
1302                                                 NL80211_CHAN_NO_HT)
1303                         config_bands = BAND_B | BAND_G;
1304                 else
1305                         config_bands = BAND_B | BAND_G | BAND_GN;
1306         } else {
1307                 bss_cfg->band_cfg = BAND_CONFIG_A;
1308
1309                 if (cfg80211_get_chandef_type(&params->chandef) ==
1310                                                 NL80211_CHAN_NO_HT)
1311                         config_bands = BAND_A;
1312                 else
1313                         config_bands = BAND_AN | BAND_A;
1314         }
1315
1316         if (!((config_bands | priv->adapter->fw_bands) &
1317               ~priv->adapter->fw_bands))
1318                 priv->adapter->config_bands = config_bands;
1319
1320         mwifiex_set_uap_rates(bss_cfg, params);
1321         mwifiex_send_domain_info_cmd_fw(wiphy);
1322
1323         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1324                 kfree(bss_cfg);
1325                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1326                 return -1;
1327         }
1328
1329         mwifiex_set_ht_params(priv, bss_cfg, params);
1330
1331         if (params->inactivity_timeout > 0) {
1332                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1333                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1334                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1335         }
1336
1337         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1338                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1339                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1340                 kfree(bss_cfg);
1341                 return -1;
1342         }
1343
1344         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1345                                    HostCmd_ACT_GEN_SET,
1346                                    UAP_BSS_PARAMS_I, bss_cfg)) {
1347                 wiphy_err(wiphy, "Failed to set the SSID\n");
1348                 kfree(bss_cfg);
1349                 return -1;
1350         }
1351
1352         kfree(bss_cfg);
1353
1354         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1355                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
1356                 wiphy_err(wiphy, "Failed to start the BSS\n");
1357                 return -1;
1358         }
1359
1360         if (priv->sec_info.wep_enabled)
1361                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1362         else
1363                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1364
1365         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1366                                   HostCmd_ACT_GEN_SET, 0,
1367                                   &priv->curr_pkt_filter))
1368                 return -1;
1369
1370         return 0;
1371 }
1372
1373 /*
1374  * CFG802.11 operation handler for disconnection request.
1375  *
1376  * This function does not work when there is already a disconnection
1377  * procedure going on.
1378  */
1379 static int
1380 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1381                             u16 reason_code)
1382 {
1383         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1384
1385         if (mwifiex_deauthenticate(priv, NULL))
1386                 return -EFAULT;
1387
1388         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1389                 " reason code %d\n", priv->cfg_bssid, reason_code);
1390
1391         memset(priv->cfg_bssid, 0, ETH_ALEN);
1392
1393         return 0;
1394 }
1395
1396 /*
1397  * This function informs the CFG802.11 subsystem of a new IBSS.
1398  *
1399  * The following information are sent to the CFG802.11 subsystem
1400  * to register the new IBSS. If we do not register the new IBSS,
1401  * a kernel panic will result.
1402  *      - SSID
1403  *      - SSID length
1404  *      - BSSID
1405  *      - Channel
1406  */
1407 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1408 {
1409         struct ieee80211_channel *chan;
1410         struct mwifiex_bss_info bss_info;
1411         struct cfg80211_bss *bss;
1412         int ie_len;
1413         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1414         enum ieee80211_band band;
1415
1416         if (mwifiex_get_bss_info(priv, &bss_info))
1417                 return -1;
1418
1419         ie_buf[0] = WLAN_EID_SSID;
1420         ie_buf[1] = bss_info.ssid.ssid_len;
1421
1422         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1423                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1424         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1425
1426         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1427         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1428                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1429                                                        band));
1430
1431         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1432                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1433                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1434         cfg80211_put_bss(bss);
1435         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1436
1437         return 0;
1438 }
1439
1440 /*
1441  * This function connects with a BSS.
1442  *
1443  * This function handles both Infra and Ad-Hoc modes. It also performs
1444  * validity checking on the provided parameters, disconnects from the
1445  * current BSS (if any), sets up the association/scan parameters,
1446  * including security settings, and performs specific SSID scan before
1447  * trying to connect.
1448  *
1449  * For Infra mode, the function returns failure if the specified SSID
1450  * is not found in scan table. However, for Ad-Hoc mode, it can create
1451  * the IBSS if it does not exist. On successful completion in either case,
1452  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1453  */
1454 static int
1455 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1456                        u8 *bssid, int mode, struct ieee80211_channel *channel,
1457                        struct cfg80211_connect_params *sme, bool privacy)
1458 {
1459         struct cfg80211_ssid req_ssid;
1460         int ret, auth_type = 0;
1461         struct cfg80211_bss *bss = NULL;
1462         u8 is_scanning_required = 0, config_bands = 0;
1463
1464         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1465
1466         req_ssid.ssid_len = ssid_len;
1467         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1468                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1469                 return -EINVAL;
1470         }
1471
1472         memcpy(req_ssid.ssid, ssid, ssid_len);
1473         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1474                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1475                 return -EINVAL;
1476         }
1477
1478         /* disconnect before try to associate */
1479         mwifiex_deauthenticate(priv, NULL);
1480
1481         if (channel) {
1482                 if (mode == NL80211_IFTYPE_STATION) {
1483                         if (channel->band == IEEE80211_BAND_2GHZ)
1484                                 config_bands = BAND_B | BAND_G | BAND_GN;
1485                         else
1486                                 config_bands = BAND_A | BAND_AN;
1487
1488                         if (!((config_bands | priv->adapter->fw_bands) &
1489                               ~priv->adapter->fw_bands))
1490                                 priv->adapter->config_bands = config_bands;
1491                 }
1492         }
1493
1494         /* As this is new association, clear locally stored
1495          * keys and security related flags */
1496         priv->sec_info.wpa_enabled = false;
1497         priv->sec_info.wpa2_enabled = false;
1498         priv->wep_key_curr_index = 0;
1499         priv->sec_info.encryption_mode = 0;
1500         priv->sec_info.is_authtype_auto = 0;
1501         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1502
1503         if (mode == NL80211_IFTYPE_ADHOC) {
1504                 /* "privacy" is set only for ad-hoc mode */
1505                 if (privacy) {
1506                         /*
1507                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1508                          * the firmware can find a matching network from the
1509                          * scan. The cfg80211 does not give us the encryption
1510                          * mode at this stage so just setting it to WEP here.
1511                          */
1512                         priv->sec_info.encryption_mode =
1513                                         WLAN_CIPHER_SUITE_WEP104;
1514                         priv->sec_info.authentication_mode =
1515                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1516                 }
1517
1518                 goto done;
1519         }
1520
1521         /* Now handle infra mode. "sme" is valid for infra mode only */
1522         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1523                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1524                 priv->sec_info.is_authtype_auto = 1;
1525         } else {
1526                 auth_type = sme->auth_type;
1527         }
1528
1529         if (sme->crypto.n_ciphers_pairwise) {
1530                 priv->sec_info.encryption_mode =
1531                                                 sme->crypto.ciphers_pairwise[0];
1532                 priv->sec_info.authentication_mode = auth_type;
1533         }
1534
1535         if (sme->crypto.cipher_group) {
1536                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1537                 priv->sec_info.authentication_mode = auth_type;
1538         }
1539         if (sme->ie)
1540                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1541
1542         if (sme->key) {
1543                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1544                         dev_dbg(priv->adapter->dev,
1545                                 "info: setting wep encryption"
1546                                 " with key len %d\n", sme->key_len);
1547                         priv->wep_key_curr_index = sme->key_idx;
1548                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1549                                                  sme->key_len, sme->key_idx,
1550                                                  NULL, 0);
1551                 }
1552         }
1553 done:
1554         /*
1555          * Scan entries are valid for some time (15 sec). So we can save one
1556          * active scan time if we just try cfg80211_get_bss first. If it fails
1557          * then request scan and cfg80211_get_bss() again for final output.
1558          */
1559         while (1) {
1560                 if (is_scanning_required) {
1561                         /* Do specific SSID scanning */
1562                         if (mwifiex_request_scan(priv, &req_ssid)) {
1563                                 dev_err(priv->adapter->dev, "scan error\n");
1564                                 return -EFAULT;
1565                         }
1566                 }
1567
1568                 /* Find the BSS we want using available scan results */
1569                 if (mode == NL80211_IFTYPE_ADHOC)
1570                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1571                                                bssid, ssid, ssid_len,
1572                                                WLAN_CAPABILITY_IBSS,
1573                                                WLAN_CAPABILITY_IBSS);
1574                 else
1575                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1576                                                bssid, ssid, ssid_len,
1577                                                WLAN_CAPABILITY_ESS,
1578                                                WLAN_CAPABILITY_ESS);
1579
1580                 if (!bss) {
1581                         if (is_scanning_required) {
1582                                 dev_warn(priv->adapter->dev,
1583                                          "assoc: requested bss not found in scan results\n");
1584                                 break;
1585                         }
1586                         is_scanning_required = 1;
1587                 } else {
1588                         dev_dbg(priv->adapter->dev,
1589                                 "info: trying to associate to '%s' bssid %pM\n",
1590                                 (char *) req_ssid.ssid, bss->bssid);
1591                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1592                         break;
1593                 }
1594         }
1595
1596         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1597         if (ret)
1598                 return ret;
1599
1600         if (mode == NL80211_IFTYPE_ADHOC) {
1601                 /* Inform the BSS information to kernel, otherwise
1602                  * kernel will give a panic after successful assoc */
1603                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1604                         return -EFAULT;
1605         }
1606
1607         return ret;
1608 }
1609
1610 /*
1611  * CFG802.11 operation handler for association request.
1612  *
1613  * This function does not work when the current mode is set to Ad-Hoc, or
1614  * when there is already an association procedure going on. The given BSS
1615  * information is used to associate.
1616  */
1617 static int
1618 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1619                          struct cfg80211_connect_params *sme)
1620 {
1621         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1622         int ret = 0;
1623
1624         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1625                 wiphy_err(wiphy, "received infra assoc request "
1626                                 "when station is in ibss mode\n");
1627                 goto done;
1628         }
1629
1630         if (priv->bss_mode == NL80211_IFTYPE_AP) {
1631                 wiphy_err(wiphy, "skip association request for AP interface\n");
1632                 goto done;
1633         }
1634
1635         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1636                   (char *) sme->ssid, sme->bssid);
1637
1638         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1639                                      priv->bss_mode, sme->channel, sme, 0);
1640 done:
1641         if (!ret) {
1642                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1643                                         NULL, 0, WLAN_STATUS_SUCCESS,
1644                                         GFP_KERNEL);
1645                 dev_dbg(priv->adapter->dev,
1646                         "info: associated to bssid %pM successfully\n",
1647                         priv->cfg_bssid);
1648         } else {
1649                 dev_dbg(priv->adapter->dev,
1650                         "info: association to bssid %pM failed\n",
1651                         priv->cfg_bssid);
1652                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1653
1654                 if (ret > 0)
1655                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1656                                                 NULL, 0, NULL, 0, ret,
1657                                                 GFP_KERNEL);
1658                 else
1659                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1660                                                 NULL, 0, NULL, 0,
1661                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1662                                                 GFP_KERNEL);
1663         }
1664
1665         return 0;
1666 }
1667
1668 /*
1669  * This function sets following parameters for ibss network.
1670  *  -  channel
1671  *  -  start band
1672  *  -  11n flag
1673  *  -  secondary channel offset
1674  */
1675 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1676                                    struct cfg80211_ibss_params *params)
1677 {
1678         struct wiphy *wiphy = priv->wdev->wiphy;
1679         struct mwifiex_adapter *adapter = priv->adapter;
1680         int index = 0, i;
1681         u8 config_bands = 0;
1682
1683         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1684                 if (!params->basic_rates) {
1685                         config_bands = BAND_B | BAND_G;
1686                 } else {
1687                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1688                                 /*
1689                                  * Rates below 6 Mbps in the table are CCK
1690                                  * rates; 802.11b and from 6 they are OFDM;
1691                                  * 802.11G
1692                                  */
1693                                 if (mwifiex_rates[i].bitrate == 60) {
1694                                         index = 1 << i;
1695                                         break;
1696                                 }
1697                         }
1698
1699                         if (params->basic_rates < index) {
1700                                 config_bands = BAND_B;
1701                         } else {
1702                                 config_bands = BAND_G;
1703                                 if (params->basic_rates % index)
1704                                         config_bands |= BAND_B;
1705                         }
1706                 }
1707
1708                 if (cfg80211_get_chandef_type(&params->chandef) !=
1709                                                 NL80211_CHAN_NO_HT)
1710                         config_bands |= BAND_GN;
1711         } else {
1712                 if (cfg80211_get_chandef_type(&params->chandef) ==
1713                                                 NL80211_CHAN_NO_HT)
1714                         config_bands = BAND_A;
1715                 else
1716                         config_bands = BAND_AN | BAND_A;
1717         }
1718
1719         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1720                 adapter->config_bands = config_bands;
1721                 adapter->adhoc_start_band = config_bands;
1722
1723                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1724                         adapter->adhoc_11n_enabled = true;
1725                 else
1726                         adapter->adhoc_11n_enabled = false;
1727         }
1728
1729         adapter->sec_chan_offset =
1730                 mwifiex_chan_type_to_sec_chan_offset(
1731                         cfg80211_get_chandef_type(&params->chandef));
1732         priv->adhoc_channel = ieee80211_frequency_to_channel(
1733                                 params->chandef.chan->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->chandef.chan, NULL,
1768                                      params->privacy);
1769 done:
1770         if (!ret) {
1771                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1772                 dev_dbg(priv->adapter->dev,
1773                         "info: joined/created adhoc network with bssid"
1774                         " %pM successfully\n", priv->cfg_bssid);
1775         } else {
1776                 dev_dbg(priv->adapter->dev,
1777                         "info: failed creating/joining adhoc network\n");
1778         }
1779
1780         return ret;
1781 }
1782
1783 /*
1784  * CFG802.11 operation handler to leave an IBSS.
1785  *
1786  * This function does not work if a leave operation is
1787  * already in progress.
1788  */
1789 static int
1790 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1791 {
1792         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1793
1794         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1795                   priv->cfg_bssid);
1796         if (mwifiex_deauthenticate(priv, NULL))
1797                 return -EFAULT;
1798
1799         memset(priv->cfg_bssid, 0, ETH_ALEN);
1800
1801         return 0;
1802 }
1803
1804 /*
1805  * CFG802.11 operation handler for scan request.
1806  *
1807  * This function issues a scan request to the firmware based upon
1808  * the user specified scan configuration. On successfull completion,
1809  * it also informs the results.
1810  */
1811 static int
1812 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1813                       struct cfg80211_scan_request *request)
1814 {
1815         struct net_device *dev = request->wdev->netdev;
1816         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1817         int i, offset, ret;
1818         struct ieee80211_channel *chan;
1819         struct ieee_types_header *ie;
1820
1821         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1822
1823         if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1824             atomic_read(&priv->wmm.tx_pkts_queued) >=
1825             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1826                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1827                 return -EBUSY;
1828         }
1829
1830         if (priv->user_scan_cfg) {
1831                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1832                 return -EBUSY;
1833         }
1834
1835         priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1836                                       GFP_KERNEL);
1837         if (!priv->user_scan_cfg) {
1838                 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1839                 return -ENOMEM;
1840         }
1841
1842         priv->scan_request = request;
1843
1844         priv->user_scan_cfg->num_ssids = request->n_ssids;
1845         priv->user_scan_cfg->ssid_list = request->ssids;
1846
1847         if (request->ie && request->ie_len) {
1848                 offset = 0;
1849                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1850                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1851                                 continue;
1852                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1853                         ie = (struct ieee_types_header *)(request->ie + offset);
1854                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1855                         offset += sizeof(*ie) + ie->len;
1856
1857                         if (offset >= request->ie_len)
1858                                 break;
1859                 }
1860         }
1861
1862         for (i = 0; i < request->n_channels; i++) {
1863                 chan = request->channels[i];
1864                 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1865                 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1866
1867                 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1868                         priv->user_scan_cfg->chan_list[i].scan_type =
1869                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1870                 else
1871                         priv->user_scan_cfg->chan_list[i].scan_type =
1872                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1873
1874                 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1875         }
1876
1877         ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
1878         if (ret) {
1879                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1880                 priv->scan_request = NULL;
1881                 kfree(priv->user_scan_cfg);
1882                 priv->user_scan_cfg = NULL;
1883                 return ret;
1884         }
1885
1886         if (request->ie && request->ie_len) {
1887                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1888                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1889                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1890                                 memset(&priv->vs_ie[i].ie, 0,
1891                                        MWIFIEX_MAX_VSIE_LEN);
1892                         }
1893                 }
1894         }
1895         return 0;
1896 }
1897
1898 /*
1899  * This function sets up the CFG802.11 specific HT capability fields
1900  * with default values.
1901  *
1902  * The following default values are set -
1903  *      - HT Supported = True
1904  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1905  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1906  *      - HT Capabilities supported by firmware
1907  *      - MCS information, Rx mask = 0xff
1908  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1909  */
1910 static void
1911 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1912                       struct mwifiex_private *priv)
1913 {
1914         int rx_mcs_supp;
1915         struct ieee80211_mcs_info mcs_set;
1916         u8 *mcs = (u8 *)&mcs_set;
1917         struct mwifiex_adapter *adapter = priv->adapter;
1918
1919         ht_info->ht_supported = true;
1920         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1921         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1922
1923         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1924
1925         /* Fill HT capability information */
1926         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1927                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1928         else
1929                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1930
1931         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1932                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1933         else
1934                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1935
1936         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1937                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1938         else
1939                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1940
1941         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1942                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1943         else
1944                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1945
1946         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1947                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1948         else
1949                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1950
1951         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
1952                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
1953         else
1954                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
1955
1956         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
1957                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
1958         else
1959                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
1960
1961         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
1962                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
1963         else
1964                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
1965
1966         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1967         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1968
1969         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1970         /* Set MCS for 1x1 */
1971         memset(mcs, 0xff, rx_mcs_supp);
1972         /* Clear all the other values */
1973         memset(&mcs[rx_mcs_supp], 0,
1974                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1975         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1976             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1977                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1978                 SETHT_MCS32(mcs_set.rx_mask);
1979
1980         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1981
1982         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1983 }
1984
1985 /*
1986  *  create a new virtual interface with the given name
1987  */
1988 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1989                                               const char *name,
1990                                               enum nl80211_iftype type,
1991                                               u32 *flags,
1992                                               struct vif_params *params)
1993 {
1994         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1995         struct mwifiex_private *priv;
1996         struct net_device *dev;
1997         void *mdev_priv;
1998         struct wireless_dev *wdev;
1999
2000         if (!adapter)
2001                 return ERR_PTR(-EFAULT);
2002
2003         switch (type) {
2004         case NL80211_IFTYPE_UNSPECIFIED:
2005         case NL80211_IFTYPE_STATION:
2006         case NL80211_IFTYPE_ADHOC:
2007                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2008                 if (priv->bss_mode) {
2009                         wiphy_err(wiphy,
2010                                   "cannot create multiple sta/adhoc ifaces\n");
2011                         return ERR_PTR(-EINVAL);
2012                 }
2013
2014                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2015                 if (!wdev)
2016                         return ERR_PTR(-ENOMEM);
2017
2018                 wdev->wiphy = wiphy;
2019                 priv->wdev = wdev;
2020                 wdev->iftype = NL80211_IFTYPE_STATION;
2021
2022                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2023                         priv->bss_mode = NL80211_IFTYPE_STATION;
2024                 else
2025                         priv->bss_mode = type;
2026
2027                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2028                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2029                 priv->bss_priority = 0;
2030                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2031                 priv->bss_num = 0;
2032
2033                 break;
2034         case NL80211_IFTYPE_AP:
2035                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2036
2037                 if (priv->bss_mode) {
2038                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
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                 wdev->iftype = NL80211_IFTYPE_AP;
2049
2050                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2051                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2052                 priv->bss_priority = 0;
2053                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2054                 priv->bss_started = 0;
2055                 priv->bss_num = 0;
2056                 priv->bss_mode = type;
2057
2058                 break;
2059         case NL80211_IFTYPE_P2P_CLIENT:
2060                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2061
2062                 if (priv->bss_mode) {
2063                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2064                         return ERR_PTR(-EINVAL);
2065                 }
2066
2067                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2068                 if (!wdev)
2069                         return ERR_PTR(-ENOMEM);
2070
2071                 priv->wdev = wdev;
2072                 wdev->wiphy = wiphy;
2073
2074                 /* At start-up, wpa_supplicant tries to change the interface
2075                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2076                  * So, we initialize it to STA mode.
2077                  */
2078                 wdev->iftype = NL80211_IFTYPE_STATION;
2079                 priv->bss_mode = NL80211_IFTYPE_STATION;
2080
2081                 /* Setting bss_type to P2P tells firmware that this interface
2082                  * is receiving P2P peers found during find phase and doing
2083                  * action frame handshake.
2084                  */
2085                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2086
2087                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2088                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2089                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2090                 priv->bss_started = 0;
2091                 priv->bss_num = 0;
2092
2093                 break;
2094         default:
2095                 wiphy_err(wiphy, "type not supported\n");
2096                 return ERR_PTR(-EINVAL);
2097         }
2098
2099         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2100                                ether_setup, IEEE80211_NUM_ACS, 1);
2101         if (!dev) {
2102                 wiphy_err(wiphy, "no memory available for netdevice\n");
2103                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2104                 return ERR_PTR(-ENOMEM);
2105         }
2106
2107         mwifiex_init_priv_params(priv, dev);
2108         priv->netdev = dev;
2109
2110         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2111
2112         if (adapter->config_bands & BAND_A)
2113                 mwifiex_setup_ht_caps(
2114                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2115
2116         dev_net_set(dev, wiphy_net(wiphy));
2117         dev->ieee80211_ptr = priv->wdev;
2118         dev->ieee80211_ptr->iftype = priv->bss_mode;
2119         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2120         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2121
2122         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2123         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2124         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2125
2126         mdev_priv = netdev_priv(dev);
2127         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2128
2129         SET_NETDEV_DEV(dev, adapter->dev);
2130
2131         /* Register network device */
2132         if (register_netdevice(dev)) {
2133                 wiphy_err(wiphy, "cannot register virtual network device\n");
2134                 free_netdev(dev);
2135                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2136                 return ERR_PTR(-EFAULT);
2137         }
2138
2139         sema_init(&priv->async_sem, 1);
2140
2141         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2142
2143 #ifdef CONFIG_DEBUG_FS
2144         mwifiex_dev_debugfs_init(priv);
2145 #endif
2146         return wdev;
2147 }
2148 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2149
2150 /*
2151  * del_virtual_intf: remove the virtual interface determined by dev
2152  */
2153 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2154 {
2155         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2156
2157 #ifdef CONFIG_DEBUG_FS
2158         mwifiex_dev_debugfs_remove(priv);
2159 #endif
2160
2161         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2162
2163         if (netif_carrier_ok(priv->netdev))
2164                 netif_carrier_off(priv->netdev);
2165
2166         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2167                 unregister_netdevice(wdev->netdev);
2168
2169         if (wdev->netdev->reg_state == NETREG_UNREGISTERED)
2170                 free_netdev(wdev->netdev);
2171
2172         /* Clear the priv in adapter */
2173         priv->netdev = NULL;
2174
2175         priv->media_connected = false;
2176
2177         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2178
2179         return 0;
2180 }
2181 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2182
2183 /* station cfg80211 operations */
2184 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2185         .add_virtual_intf = mwifiex_add_virtual_intf,
2186         .del_virtual_intf = mwifiex_del_virtual_intf,
2187         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2188         .scan = mwifiex_cfg80211_scan,
2189         .connect = mwifiex_cfg80211_connect,
2190         .disconnect = mwifiex_cfg80211_disconnect,
2191         .get_station = mwifiex_cfg80211_get_station,
2192         .dump_station = mwifiex_cfg80211_dump_station,
2193         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2194         .join_ibss = mwifiex_cfg80211_join_ibss,
2195         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2196         .add_key = mwifiex_cfg80211_add_key,
2197         .del_key = mwifiex_cfg80211_del_key,
2198         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2199         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2200         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2201         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2202         .set_default_key = mwifiex_cfg80211_set_default_key,
2203         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2204         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2205         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2206         .start_ap = mwifiex_cfg80211_start_ap,
2207         .stop_ap = mwifiex_cfg80211_stop_ap,
2208         .change_beacon = mwifiex_cfg80211_change_beacon,
2209         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2210         .set_antenna = mwifiex_cfg80211_set_antenna,
2211 };
2212
2213 /*
2214  * This function registers the device with CFG802.11 subsystem.
2215  *
2216  * The function creates the wireless device/wiphy, populates it with
2217  * default parameters and handler function pointers, and finally
2218  * registers the device.
2219  */
2220
2221 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2222 {
2223         int ret;
2224         void *wdev_priv;
2225         struct wiphy *wiphy;
2226         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2227         u8 *country_code;
2228
2229         /* create a new wiphy for use with cfg80211 */
2230         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2231                           sizeof(struct mwifiex_adapter *));
2232         if (!wiphy) {
2233                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2234                 return -ENOMEM;
2235         }
2236         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2237         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2238         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2239         wiphy->max_remain_on_channel_duration = 5000;
2240         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2241                                  BIT(NL80211_IFTYPE_ADHOC) |
2242                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2243                                  BIT(NL80211_IFTYPE_P2P_GO) |
2244                                  BIT(NL80211_IFTYPE_AP);
2245
2246         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2247         if (adapter->config_bands & BAND_A)
2248                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2249         else
2250                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2251
2252         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2253         wiphy->n_iface_combinations = 1;
2254
2255         /* Initialize cipher suits */
2256         wiphy->cipher_suites = mwifiex_cipher_suites;
2257         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2258
2259         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2260         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2261         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2262                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2263                         WIPHY_FLAG_CUSTOM_REGULATORY |
2264                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2265
2266         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2267
2268         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2269                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2270                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2271
2272         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2273         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2274
2275         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2276                            NL80211_FEATURE_INACTIVITY_TIMER |
2277                            NL80211_FEATURE_LOW_PRIORITY_SCAN;
2278
2279         /* Reserve space for mwifiex specific private data for BSS */
2280         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2281
2282         wiphy->reg_notifier = mwifiex_reg_notifier;
2283
2284         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2285         wdev_priv = wiphy_priv(wiphy);
2286         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2287
2288         set_wiphy_dev(wiphy, priv->adapter->dev);
2289
2290         ret = wiphy_register(wiphy);
2291         if (ret < 0) {
2292                 dev_err(adapter->dev,
2293                         "%s: wiphy_register failed: %d\n", __func__, ret);
2294                 wiphy_free(wiphy);
2295                 return ret;
2296         }
2297         country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
2298         if (country_code)
2299                 dev_info(adapter->dev,
2300                          "ignoring F/W country code %2.2s\n", country_code);
2301
2302         adapter->wiphy = wiphy;
2303         return ret;
2304 }