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 void 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
 545 /*
 546  * This function sets the fragmentation threshold.
 547  *
 548  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 549  * and MWIFIEX_FRAG_MAX_VALUE.
 550  */
 551 static int
 552 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 553 {
 554         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 555             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 556                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 557
 558         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 559                                      HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 560                                      &frag_thr);
 561 }
 562
 563 /*
 564  * This function sets the RTS threshold.
 565
 566  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 567  * and MWIFIEX_RTS_MAX_VALUE.
 568  */
 569 static int
 570 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 571 {
 572         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 573                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 574
 575         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 576                                     HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 577                                     &rts_thr);
 578 }
 579
 580 /*
 581  * CFG802.11 operation handler to set wiphy parameters.
 582  *
 583  * This function can be used to set the RTS threshold and the
 584  * Fragmentation threshold of the driver.
 585  */
 586 static int
 587 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 588 {
 589         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 590         struct mwifiex_private *priv;
 591         struct mwifiex_uap_bss_param *bss_cfg;
 592         int ret, bss_started, i;
 593
 594         for (i = 0; i < adapter->priv_num; i++) {
 595                 priv = adapter->priv[i];
 596
 597                 switch (priv->bss_role) {
 598                 case MWIFIEX_BSS_ROLE_UAP:
 599                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 600                                           GFP_KERNEL);
 601                         if (!bss_cfg)
 602                                 return -ENOMEM;
 603
 604                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 605
 606                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 607                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 608                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 609                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 610                         if (changed & WIPHY_PARAM_RETRY_LONG)
 611                                 bss_cfg->retry_limit = wiphy->retry_long;
 612
 613                         bss_started = priv->bss_started;
 614
 615                         ret = mwifiex_send_cmd_sync(priv,
 616                                                     HostCmd_CMD_UAP_BSS_STOP,
 617                                                     HostCmd_ACT_GEN_SET, 0,
 618                                                     NULL);
 619                         if (ret) {
 620                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 621                                 kfree(bss_cfg);
 622                                 return ret;
 623                         }
 624
 625                         ret = mwifiex_send_cmd_async(priv,
 626                                                      HostCmd_CMD_UAP_SYS_CONFIG,
 627                                                      HostCmd_ACT_GEN_SET,
 628                                                      UAP_BSS_PARAMS_I, bss_cfg);
 629
 630                         kfree(bss_cfg);
 631
 632                         if (ret) {
 633                                 wiphy_err(wiphy, "Failed to set bss config\n");
 634                                 return ret;
 635                         }
 636
 637                         if (!bss_started)
 638                                 break;
 639
 640                         ret = mwifiex_send_cmd_async(priv,
 641                                                      HostCmd_CMD_UAP_BSS_START,
 642                                                      HostCmd_ACT_GEN_SET, 0,
 643                                                      NULL);
 644                         if (ret) {
 645                                 wiphy_err(wiphy, "Failed to start BSS\n");
 646                                 return ret;
 647                         }
 648
 649                         break;
 650                 case MWIFIEX_BSS_ROLE_STA:
 651                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 652                                 ret = mwifiex_set_rts(priv,
 653                                                       wiphy->rts_threshold);
 654                                 if (ret)
 655                                         return ret;
 656                         }
 657                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 658                                 ret = mwifiex_set_frag(priv,
 659                                                        wiphy->frag_threshold);
 660                                 if (ret)
 661                                         return ret;
 662                         }
 663                         break;
 664                 }
 665         }
 666
 667         return 0;
 668 }
 669
 670 static int
 671 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 672 {
 673         u16 mode = P2P_MODE_DISABLE;
 674
 675         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 676                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 677
 678         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 679                                   HostCmd_ACT_GEN_SET, 0, &mode))
 680                 return -1;
 681
 682         return 0;
 683 }
 684
 685 /*
 686  * This function initializes the functionalities for P2P client.
 687  * The P2P client initialization sequence is:
 688  * disable -> device -> client
 689  */
 690 static int
 691 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 692 {
 693         u16 mode;
 694
 695         if (mwifiex_cfg80211_deinit_p2p(priv))
 696                 return -1;
 697
 698         mode = P2P_MODE_DEVICE;
 699         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 700                                   HostCmd_ACT_GEN_SET, 0, &mode))
 701                 return -1;
 702
 703         mode = P2P_MODE_CLIENT;
 704         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 705                                   HostCmd_ACT_GEN_SET, 0, &mode))
 706                 return -1;
 707
 708         return 0;
 709 }
 710
 711 /*
 712  * This function initializes the functionalities for P2P GO.
 713  * The P2P GO initialization sequence is:
 714  * disable -> device -> GO
 715  */
 716 static int
 717 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 718 {
 719         u16 mode;
 720
 721         if (mwifiex_cfg80211_deinit_p2p(priv))
 722                 return -1;
 723
 724         mode = P2P_MODE_DEVICE;
 725         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 726                                   HostCmd_ACT_GEN_SET, 0, &mode))
 727                 return -1;
 728
 729         mode = P2P_MODE_GO;
 730         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 731                                   HostCmd_ACT_GEN_SET, 0, &mode))
 732                 return -1;
 733
 734         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 735                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 736
 737         return 0;
 738 }
 739
 740 /*
 741  * CFG802.11 operation handler to change interface type.
 742  */
 743 static int
 744 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 745                                      struct net_device *dev,
 746                                      enum nl80211_iftype type, u32 *flags,
 747                                      struct vif_params *params)
 748 {
 749         int ret;
 750         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 751
 752         switch (dev->ieee80211_ptr->iftype) {
 753         case NL80211_IFTYPE_ADHOC:
 754                 switch (type) {
 755                 case NL80211_IFTYPE_STATION:
 756                         break;
 757                 case NL80211_IFTYPE_UNSPECIFIED:
 758                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 759                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 760                         return 0;
 761                 case NL80211_IFTYPE_AP:
 762                 default:
 763                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 764                                   dev->name, type);
 765                         return -EOPNOTSUPP;
 766                 }
 767                 break;
 768         case NL80211_IFTYPE_STATION:
 769                 switch (type) {
 770                 case NL80211_IFTYPE_ADHOC:
 771                         break;
 772                 case NL80211_IFTYPE_P2P_CLIENT:
 773                         if (mwifiex_cfg80211_init_p2p_client(priv))
 774                                 return -EFAULT;
 775                         dev->ieee80211_ptr->iftype = type;
 776                         return 0;
 777                 case NL80211_IFTYPE_P2P_GO:
 778                         if (mwifiex_cfg80211_init_p2p_go(priv))
 779                                 return -EFAULT;
 780                         dev->ieee80211_ptr->iftype = type;
 781                         return 0;
 782                 case NL80211_IFTYPE_UNSPECIFIED:
 783                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 784                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 785                         return 0;
 786                 case NL80211_IFTYPE_AP:
 787                 default:
 788                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 789                                   dev->name, type);
 790                         return -EOPNOTSUPP;
 791                 }
 792                 break;
 793         case NL80211_IFTYPE_AP:
 794                 switch (type) {
 795                 case NL80211_IFTYPE_UNSPECIFIED:
 796                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 797                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 798                         return 0;
 799                 case NL80211_IFTYPE_ADHOC:
 800                 case NL80211_IFTYPE_STATION:
 801                 default:
 802                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 803                                   dev->name, type);
 804                         return -EOPNOTSUPP;
 805                 }
 806                 break;
 807         case NL80211_IFTYPE_P2P_CLIENT:
 808         case NL80211_IFTYPE_P2P_GO:
 809                 switch (type) {
 810                 case NL80211_IFTYPE_STATION:
 811                         if (mwifiex_cfg80211_deinit_p2p(priv))
 812                                 return -EFAULT;
 813                         dev->ieee80211_ptr->iftype = type;
 814                         return 0;
 815                 default:
 816                         return -EOPNOTSUPP;
 817                 }
 818                 break;
 819         default:
 820                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 821                           dev->name, dev->ieee80211_ptr->iftype);
 822                 return -EOPNOTSUPP;
 823         }
 824
 825         dev->ieee80211_ptr->iftype = type;
 826         priv->bss_mode = type;
 827         mwifiex_deauthenticate(priv, NULL);
 828
 829         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 830
 831         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
 832                                     HostCmd_ACT_GEN_SET, 0, NULL);
 833
 834         return ret;
 835 }
 836
 837 /*
 838  * This function dumps the station information on a buffer.
 839  *
 840  * The following information are shown -
 841  *      - Total bytes transmitted
 842  *      - Total bytes received
 843  *      - Total packets transmitted
 844  *      - Total packets received
 845  *      - Signal quality level
 846  *      - Transmission rate
 847  */
 848 static int
 849 mwifiex_dump_station_info(struct mwifiex_private *priv,
 850                           struct station_info *sinfo)
 851 {
 852         u32 rate;
 853
 854         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 855                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 856                         STATION_INFO_TX_BITRATE |
 857                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 858
 859         /* Get signal information from the firmware */
 860         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 861                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 862                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 863                 return -EFAULT;
 864         }
 865
 866         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 867                 dev_err(priv->adapter->dev, "getting data rate\n");
 868                 return -EFAULT;
 869         }
 870
 871         /* Get DTIM period information from firmware */
 872         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 873                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 874                               &priv->dtim_period);
 875
 876         /*
 877          * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
 878          * MCS index values for us are 0 to 15.
 879          */
 880         if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 881                 sinfo->txrate.mcs = priv->tx_rate;
 882                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 883                 /* 40MHz rate */
 884                 if (priv->tx_htinfo & BIT(1))
 885                         sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 886                 /* SGI enabled */
 887                 if (priv->tx_htinfo & BIT(2))
 888                         sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 889         }
 890
 891         sinfo->signal_avg = priv->bcn_rssi_avg;
 892         sinfo->rx_bytes = priv->stats.rx_bytes;
 893         sinfo->tx_bytes = priv->stats.tx_bytes;
 894         sinfo->rx_packets = priv->stats.rx_packets;
 895         sinfo->tx_packets = priv->stats.tx_packets;
 896         sinfo->signal = priv->bcn_rssi_avg;
 897         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 898         sinfo->txrate.legacy = rate * 5;
 899
 900         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 901                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 902                 sinfo->bss_param.flags = 0;
 903                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 904                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 905                         sinfo->bss_param.flags |=
 906                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 907                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 908                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 909                         sinfo->bss_param.flags |=
 910                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 911                 sinfo->bss_param.dtim_period = priv->dtim_period;
 912                 sinfo->bss_param.beacon_interval =
 913                         priv->curr_bss_params.bss_descriptor.beacon_period;
 914         }
 915
 916         return 0;
 917 }
 918
 919 /*
 920  * CFG802.11 operation handler to get station information.
 921  *
 922  * This function only works in connected mode, and dumps the
 923  * requested station information, if available.
 924  */
 925 static int
 926 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 927                              u8 *mac, struct station_info *sinfo)
 928 {
 929         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 930
 931         if (!priv->media_connected)
 932                 return -ENOENT;
 933         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 934                 return -ENOENT;
 935
 936         return mwifiex_dump_station_info(priv, sinfo);
 937 }
 938
 939 /*
 940  * CFG802.11 operation handler to dump station information.
 941  */
 942 static int
 943 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 944                               int idx, u8 *mac, struct station_info *sinfo)
 945 {
 946         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 947
 948         if (!priv->media_connected || idx)
 949                 return -ENOENT;
 950
 951         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 952
 953         return mwifiex_dump_station_info(priv, sinfo);
 954 }
 955
 956 /* Supported rates to be advertised to the cfg80211 */
 957 static struct ieee80211_rate mwifiex_rates[] = {
 958         {.bitrate = 10, .hw_value = 2, },
 959         {.bitrate = 20, .hw_value = 4, },
 960         {.bitrate = 55, .hw_value = 11, },
 961         {.bitrate = 110, .hw_value = 22, },
 962         {.bitrate = 60, .hw_value = 12, },
 963         {.bitrate = 90, .hw_value = 18, },
 964         {.bitrate = 120, .hw_value = 24, },
 965         {.bitrate = 180, .hw_value = 36, },
 966         {.bitrate = 240, .hw_value = 48, },
 967         {.bitrate = 360, .hw_value = 72, },
 968         {.bitrate = 480, .hw_value = 96, },
 969         {.bitrate = 540, .hw_value = 108, },
 970 };
 971
 972 /* Channel definitions to be advertised to cfg80211 */
 973 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
 974         {.center_freq = 2412, .hw_value = 1, },
 975         {.center_freq = 2417, .hw_value = 2, },
 976         {.center_freq = 2422, .hw_value = 3, },
 977         {.center_freq = 2427, .hw_value = 4, },
 978         {.center_freq = 2432, .hw_value = 5, },
 979         {.center_freq = 2437, .hw_value = 6, },
 980         {.center_freq = 2442, .hw_value = 7, },
 981         {.center_freq = 2447, .hw_value = 8, },
 982         {.center_freq = 2452, .hw_value = 9, },
 983         {.center_freq = 2457, .hw_value = 10, },
 984         {.center_freq = 2462, .hw_value = 11, },
 985         {.center_freq = 2467, .hw_value = 12, },
 986         {.center_freq = 2472, .hw_value = 13, },
 987         {.center_freq = 2484, .hw_value = 14, },
 988 };
 989
 990 static struct ieee80211_supported_band mwifiex_band_2ghz = {
 991         .channels = mwifiex_channels_2ghz,
 992         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
 993         .bitrates = mwifiex_rates,
 994         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
 995 };
 996
 997 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
 998         {.center_freq = 5040, .hw_value = 8, },
 999         {.center_freq = 5060, .hw_value = 12, },
1000         {.center_freq = 5080, .hw_value = 16, },
1001         {.center_freq = 5170, .hw_value = 34, },
1002         {.center_freq = 5190, .hw_value = 38, },
1003         {.center_freq = 5210, .hw_value = 42, },
1004         {.center_freq = 5230, .hw_value = 46, },
1005         {.center_freq = 5180, .hw_value = 36, },
1006         {.center_freq = 5200, .hw_value = 40, },
1007         {.center_freq = 5220, .hw_value = 44, },
1008         {.center_freq = 5240, .hw_value = 48, },
1009         {.center_freq = 5260, .hw_value = 52, },
1010         {.center_freq = 5280, .hw_value = 56, },
1011         {.center_freq = 5300, .hw_value = 60, },
1012         {.center_freq = 5320, .hw_value = 64, },
1013         {.center_freq = 5500, .hw_value = 100, },
1014         {.center_freq = 5520, .hw_value = 104, },
1015         {.center_freq = 5540, .hw_value = 108, },
1016         {.center_freq = 5560, .hw_value = 112, },
1017         {.center_freq = 5580, .hw_value = 116, },
1018         {.center_freq = 5600, .hw_value = 120, },
1019         {.center_freq = 5620, .hw_value = 124, },
1020         {.center_freq = 5640, .hw_value = 128, },
1021         {.center_freq = 5660, .hw_value = 132, },
1022         {.center_freq = 5680, .hw_value = 136, },
1023         {.center_freq = 5700, .hw_value = 140, },
1024         {.center_freq = 5745, .hw_value = 149, },
1025         {.center_freq = 5765, .hw_value = 153, },
1026         {.center_freq = 5785, .hw_value = 157, },
1027         {.center_freq = 5805, .hw_value = 161, },
1028         {.center_freq = 5825, .hw_value = 165, },
1029 };
1030
1031 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1032         .channels = mwifiex_channels_5ghz,
1033         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1034         .bitrates = mwifiex_rates + 4,
1035         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1036 };
1037
1038
1039 /* Supported crypto cipher suits to be advertised to cfg80211 */
1040 static const u32 mwifiex_cipher_suites[] = {
1041         WLAN_CIPHER_SUITE_WEP40,
1042         WLAN_CIPHER_SUITE_WEP104,
1043         WLAN_CIPHER_SUITE_TKIP,
1044         WLAN_CIPHER_SUITE_CCMP,
1045         WLAN_CIPHER_SUITE_AES_CMAC,
1046 };
1047
1048 /* Supported mgmt frame types to be advertised to cfg80211 */
1049 static const struct ieee80211_txrx_stypes
1050 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1051         [NL80211_IFTYPE_STATION] = {
1052                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1053                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1054                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1055                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1056         },
1057         [NL80211_IFTYPE_AP] = {
1058                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1059                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1060                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1061                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1062         },
1063         [NL80211_IFTYPE_P2P_CLIENT] = {
1064                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1065                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1066                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1067                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1068         },
1069         [NL80211_IFTYPE_P2P_GO] = {
1070                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1071                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1072                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1073                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1074         },
1075 };
1076
1077 /*
1078  * CFG802.11 operation handler for setting bit rates.
1079  *
1080  * Function configures data rates to firmware using bitrate mask
1081  * provided by cfg80211.
1082  */
1083 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1084                                 struct net_device *dev,
1085                                 const u8 *peer,
1086                                 const struct cfg80211_bitrate_mask *mask)
1087 {
1088         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1089         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1090         enum ieee80211_band band;
1091
1092         if (!priv->media_connected) {
1093                 dev_err(priv->adapter->dev,
1094                         "Can not set Tx data rate in disconnected state\n");
1095                 return -EINVAL;
1096         }
1097
1098         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1099
1100         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1101
1102         /* Fill HR/DSSS rates. */
1103         if (band == IEEE80211_BAND_2GHZ)
1104                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1105
1106         /* Fill OFDM rates */
1107         if (band == IEEE80211_BAND_2GHZ)
1108                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1109         else
1110                 bitmap_rates[1] = mask->control[band].legacy;
1111
1112         /* Fill MCS rates */
1113         bitmap_rates[2] = mask->control[band].mcs[0];
1114         if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1115                 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
1116
1117         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1118                                      HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1119 }
1120
1121 /*
1122  * CFG802.11 operation handler for connection quality monitoring.
1123  *
1124  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1125  * events to FW.
1126  */
1127 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1128                                                 struct net_device *dev,
1129                                                 s32 rssi_thold, u32 rssi_hyst)
1130 {
1131         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1132         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1133
1134         priv->cqm_rssi_thold = rssi_thold;
1135         priv->cqm_rssi_hyst = rssi_hyst;
1136
1137         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1138         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1139
1140         /* Subscribe/unsubscribe low and high rssi events */
1141         if (rssi_thold && rssi_hyst) {
1142                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1143                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1144                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1145                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1146                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1147                 return mwifiex_send_cmd_sync(priv,
1148                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1149                                              0, 0, &subsc_evt);
1150         } else {
1151                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1152                 return mwifiex_send_cmd_sync(priv,
1153                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1154                                              0, 0, &subsc_evt);
1155         }
1156
1157         return 0;
1158 }
1159
1160 /* cfg80211 operation handler for change_beacon.
1161  * Function retrieves and sets modified management IEs to FW.
1162  */
1163 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1164                                           struct net_device *dev,
1165                                           struct cfg80211_beacon_data *data)
1166 {
1167         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1168
1169         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1170                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1171                 return -EINVAL;
1172         }
1173
1174         if (!priv->bss_started) {
1175                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1176                 return -EINVAL;
1177         }
1178
1179         if (mwifiex_set_mgmt_ies(priv, data)) {
1180                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1181                 return -EFAULT;
1182         }
1183
1184         return 0;
1185 }
1186
1187 static int
1188 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1189 {
1190         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1191         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1192                                                         MWIFIEX_BSS_ROLE_ANY);
1193         struct mwifiex_ds_ant_cfg ant_cfg;
1194
1195         if (!tx_ant || !rx_ant)
1196                 return -EOPNOTSUPP;
1197
1198         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1199                 /* Not a MIMO chip. User should provide specific antenna number
1200                  * for Tx/Rx path or enable all antennas for diversity
1201                  */
1202                 if (tx_ant != rx_ant)
1203                         return -EOPNOTSUPP;
1204
1205                 if ((tx_ant & (tx_ant - 1)) &&
1206                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1207                         return -EOPNOTSUPP;
1208
1209                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1210                     (priv->adapter->number_of_antenna > 1)) {
1211                         tx_ant = RF_ANTENNA_AUTO;
1212                         rx_ant = RF_ANTENNA_AUTO;
1213                 }
1214         }
1215
1216         ant_cfg.tx_ant = tx_ant;
1217         ant_cfg.rx_ant = rx_ant;
1218
1219         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1220                                      HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1221 }
1222
1223 /* cfg80211 operation handler for stop ap.
1224  * Function stops BSS running at uAP interface.
1225  */
1226 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1227 {
1228         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1229
1230         if (mwifiex_del_mgmt_ies(priv))
1231                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1232
1233         priv->ap_11n_enabled = 0;
1234
1235         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1236                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1237                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1238                 return -1;
1239         }
1240
1241         return 0;
1242 }
1243
1244 /* cfg80211 operation handler for start_ap.
1245  * Function sets beacon period, DTIM period, SSID and security into
1246  * AP config structure.
1247  * AP is configured with these settings and BSS is started.
1248  */
1249 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1250                                      struct net_device *dev,
1251                                      struct cfg80211_ap_settings *params)
1252 {
1253         struct mwifiex_uap_bss_param *bss_cfg;
1254         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1255         u8 config_bands = 0;
1256
1257         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1258                 return -1;
1259         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1260                 return -1;
1261
1262         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1263         if (!bss_cfg)
1264                 return -ENOMEM;
1265
1266         mwifiex_set_sys_config_invalid_data(bss_cfg);
1267
1268         if (params->beacon_interval)
1269                 bss_cfg->beacon_period = params->beacon_interval;
1270         if (params->dtim_period)
1271                 bss_cfg->dtim_period = params->dtim_period;
1272
1273         if (params->ssid && params->ssid_len) {
1274                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1275                 bss_cfg->ssid.ssid_len = params->ssid_len;
1276         }
1277
1278         switch (params->hidden_ssid) {
1279         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1280                 bss_cfg->bcast_ssid_ctl = 1;
1281                 break;
1282         case NL80211_HIDDEN_SSID_ZERO_LEN:
1283                 bss_cfg->bcast_ssid_ctl = 0;
1284                 break;
1285         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1286                 /* firmware doesn't support this type of hidden SSID */
1287         default:
1288                 kfree(bss_cfg);
1289                 return -EINVAL;
1290         }
1291
1292         bss_cfg->channel = ieee80211_frequency_to_channel(
1293                                 params->chandef.chan->center_freq);
1294
1295         /* Set appropriate bands */
1296         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1297                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1298
1299                 if (cfg80211_get_chandef_type(&params->chandef) ==
1300                                                 NL80211_CHAN_NO_HT)
1301                         config_bands = BAND_B | BAND_G;
1302                 else
1303                         config_bands = BAND_B | BAND_G | BAND_GN;
1304         } else {
1305                 bss_cfg->band_cfg = BAND_CONFIG_A;
1306
1307                 if (cfg80211_get_chandef_type(&params->chandef) ==
1308                                                 NL80211_CHAN_NO_HT)
1309                         config_bands = BAND_A;
1310                 else
1311                         config_bands = BAND_AN | BAND_A;
1312         }
1313
1314         if (!((config_bands | priv->adapter->fw_bands) &
1315               ~priv->adapter->fw_bands))
1316                 priv->adapter->config_bands = config_bands;
1317
1318         mwifiex_set_uap_rates(bss_cfg, params);
1319         mwifiex_send_domain_info_cmd_fw(wiphy);
1320
1321         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1322                 kfree(bss_cfg);
1323                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1324                 return -1;
1325         }
1326
1327         mwifiex_set_ht_params(priv, bss_cfg, params);
1328         mwifiex_set_wmm_params(priv, bss_cfg, params);
1329
1330         if (params->inactivity_timeout > 0) {
1331                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1332                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1333                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1334         }
1335
1336         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1337                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1338                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1339                 kfree(bss_cfg);
1340                 return -1;
1341         }
1342
1343         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1344                                    HostCmd_ACT_GEN_SET,
1345                                    UAP_BSS_PARAMS_I, bss_cfg)) {
1346                 wiphy_err(wiphy, "Failed to set the SSID\n");
1347                 kfree(bss_cfg);
1348                 return -1;
1349         }
1350
1351         kfree(bss_cfg);
1352
1353         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1354                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
1355                 wiphy_err(wiphy, "Failed to start the BSS\n");
1356                 return -1;
1357         }
1358
1359         if (priv->sec_info.wep_enabled)
1360                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1361         else
1362                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1363
1364         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1365                                   HostCmd_ACT_GEN_SET, 0,
1366                                   &priv->curr_pkt_filter))
1367                 return -1;
1368
1369         return 0;
1370 }
1371
1372 /*
1373  * CFG802.11 operation handler for disconnection request.
1374  *
1375  * This function does not work when there is already a disconnection
1376  * procedure going on.
1377  */
1378 static int
1379 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1380                             u16 reason_code)
1381 {
1382         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1383
1384         if (mwifiex_deauthenticate(priv, NULL))
1385                 return -EFAULT;
1386
1387         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1388                 " reason code %d\n", priv->cfg_bssid, reason_code);
1389
1390         memset(priv->cfg_bssid, 0, ETH_ALEN);
1391
1392         return 0;
1393 }
1394
1395 /*
1396  * This function informs the CFG802.11 subsystem of a new IBSS.
1397  *
1398  * The following information are sent to the CFG802.11 subsystem
1399  * to register the new IBSS. If we do not register the new IBSS,
1400  * a kernel panic will result.
1401  *      - SSID
1402  *      - SSID length
1403  *      - BSSID
1404  *      - Channel
1405  */
1406 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1407 {
1408         struct ieee80211_channel *chan;
1409         struct mwifiex_bss_info bss_info;
1410         struct cfg80211_bss *bss;
1411         int ie_len;
1412         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1413         enum ieee80211_band band;
1414
1415         if (mwifiex_get_bss_info(priv, &bss_info))
1416                 return -1;
1417
1418         ie_buf[0] = WLAN_EID_SSID;
1419         ie_buf[1] = bss_info.ssid.ssid_len;
1420
1421         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1422                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1423         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1424
1425         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1426         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1427                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1428                                                        band));
1429
1430         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1431                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1432                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1433         cfg80211_put_bss(bss);
1434         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1435
1436         return 0;
1437 }
1438
1439 /*
1440  * This function connects with a BSS.
1441  *
1442  * This function handles both Infra and Ad-Hoc modes. It also performs
1443  * validity checking on the provided parameters, disconnects from the
1444  * current BSS (if any), sets up the association/scan parameters,
1445  * including security settings, and performs specific SSID scan before
1446  * trying to connect.
1447  *
1448  * For Infra mode, the function returns failure if the specified SSID
1449  * is not found in scan table. However, for Ad-Hoc mode, it can create
1450  * the IBSS if it does not exist. On successful completion in either case,
1451  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1452  */
1453 static int
1454 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1455                        u8 *bssid, int mode, struct ieee80211_channel *channel,
1456                        struct cfg80211_connect_params *sme, bool privacy)
1457 {
1458         struct cfg80211_ssid req_ssid;
1459         int ret, auth_type = 0;
1460         struct cfg80211_bss *bss = NULL;
1461         u8 is_scanning_required = 0, config_bands = 0;
1462
1463         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1464
1465         req_ssid.ssid_len = ssid_len;
1466         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1467                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1468                 return -EINVAL;
1469         }
1470
1471         memcpy(req_ssid.ssid, ssid, ssid_len);
1472         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1473                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1474                 return -EINVAL;
1475         }
1476
1477         /* disconnect before try to associate */
1478         mwifiex_deauthenticate(priv, NULL);
1479
1480         if (channel) {
1481                 if (mode == NL80211_IFTYPE_STATION) {
1482                         if (channel->band == IEEE80211_BAND_2GHZ)
1483                                 config_bands = BAND_B | BAND_G | BAND_GN;
1484                         else
1485                                 config_bands = BAND_A | BAND_AN;
1486
1487                         if (!((config_bands | priv->adapter->fw_bands) &
1488                               ~priv->adapter->fw_bands))
1489                                 priv->adapter->config_bands = config_bands;
1490                 }
1491         }
1492
1493         /* As this is new association, clear locally stored
1494          * keys and security related flags */
1495         priv->sec_info.wpa_enabled = false;
1496         priv->sec_info.wpa2_enabled = false;
1497         priv->wep_key_curr_index = 0;
1498         priv->sec_info.encryption_mode = 0;
1499         priv->sec_info.is_authtype_auto = 0;
1500         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1501
1502         if (mode == NL80211_IFTYPE_ADHOC) {
1503                 /* "privacy" is set only for ad-hoc mode */
1504                 if (privacy) {
1505                         /*
1506                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1507                          * the firmware can find a matching network from the
1508                          * scan. The cfg80211 does not give us the encryption
1509                          * mode at this stage so just setting it to WEP here.
1510                          */
1511                         priv->sec_info.encryption_mode =
1512                                         WLAN_CIPHER_SUITE_WEP104;
1513                         priv->sec_info.authentication_mode =
1514                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1515                 }
1516
1517                 goto done;
1518         }
1519
1520         /* Now handle infra mode. "sme" is valid for infra mode only */
1521         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1522                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1523                 priv->sec_info.is_authtype_auto = 1;
1524         } else {
1525                 auth_type = sme->auth_type;
1526         }
1527
1528         if (sme->crypto.n_ciphers_pairwise) {
1529                 priv->sec_info.encryption_mode =
1530                                                 sme->crypto.ciphers_pairwise[0];
1531                 priv->sec_info.authentication_mode = auth_type;
1532         }
1533
1534         if (sme->crypto.cipher_group) {
1535                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1536                 priv->sec_info.authentication_mode = auth_type;
1537         }
1538         if (sme->ie)
1539                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1540
1541         if (sme->key) {
1542                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1543                         dev_dbg(priv->adapter->dev,
1544                                 "info: setting wep encryption"
1545                                 " with key len %d\n", sme->key_len);
1546                         priv->wep_key_curr_index = sme->key_idx;
1547                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1548                                                  sme->key_len, sme->key_idx,
1549                                                  NULL, 0);
1550                 }
1551         }
1552 done:
1553         /*
1554          * Scan entries are valid for some time (15 sec). So we can save one
1555          * active scan time if we just try cfg80211_get_bss first. If it fails
1556          * then request scan and cfg80211_get_bss() again for final output.
1557          */
1558         while (1) {
1559                 if (is_scanning_required) {
1560                         /* Do specific SSID scanning */
1561                         if (mwifiex_request_scan(priv, &req_ssid)) {
1562                                 dev_err(priv->adapter->dev, "scan error\n");
1563                                 return -EFAULT;
1564                         }
1565                 }
1566
1567                 /* Find the BSS we want using available scan results */
1568                 if (mode == NL80211_IFTYPE_ADHOC)
1569                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1570                                                bssid, ssid, ssid_len,
1571                                                WLAN_CAPABILITY_IBSS,
1572                                                WLAN_CAPABILITY_IBSS);
1573                 else
1574                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1575                                                bssid, ssid, ssid_len,
1576                                                WLAN_CAPABILITY_ESS,
1577                                                WLAN_CAPABILITY_ESS);
1578
1579                 if (!bss) {
1580                         if (is_scanning_required) {
1581                                 dev_warn(priv->adapter->dev,
1582                                          "assoc: requested bss not found in scan results\n");
1583                                 break;
1584                         }
1585                         is_scanning_required = 1;
1586                 } else {
1587                         dev_dbg(priv->adapter->dev,
1588                                 "info: trying to associate to '%s' bssid %pM\n",
1589                                 (char *) req_ssid.ssid, bss->bssid);
1590                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1591                         break;
1592                 }
1593         }
1594
1595         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1596         if (ret)
1597                 return ret;
1598
1599         if (mode == NL80211_IFTYPE_ADHOC) {
1600                 /* Inform the BSS information to kernel, otherwise
1601                  * kernel will give a panic after successful assoc */
1602                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1603                         return -EFAULT;
1604         }
1605
1606         return ret;
1607 }
1608
1609 /*
1610  * CFG802.11 operation handler for association request.
1611  *
1612  * This function does not work when the current mode is set to Ad-Hoc, or
1613  * when there is already an association procedure going on. The given BSS
1614  * information is used to associate.
1615  */
1616 static int
1617 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1618                          struct cfg80211_connect_params *sme)
1619 {
1620         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1621         int ret = 0;
1622
1623         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1624                 wiphy_err(wiphy, "received infra assoc request "
1625                                 "when station is in ibss mode\n");
1626                 goto done;
1627         }
1628
1629         if (priv->bss_mode == NL80211_IFTYPE_AP) {
1630                 wiphy_err(wiphy, "skip association request for AP interface\n");
1631                 goto done;
1632         }
1633
1634         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1635                   (char *) sme->ssid, sme->bssid);
1636
1637         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1638                                      priv->bss_mode, sme->channel, sme, 0);
1639 done:
1640         if (!ret) {
1641                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1642                                         NULL, 0, WLAN_STATUS_SUCCESS,
1643                                         GFP_KERNEL);
1644                 dev_dbg(priv->adapter->dev,
1645                         "info: associated to bssid %pM successfully\n",
1646                         priv->cfg_bssid);
1647         } else {
1648                 dev_dbg(priv->adapter->dev,
1649                         "info: association to bssid %pM failed\n",
1650                         priv->cfg_bssid);
1651                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1652
1653                 if (ret > 0)
1654                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1655                                                 NULL, 0, NULL, 0, ret,
1656                                                 GFP_KERNEL);
1657                 else
1658                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1659                                                 NULL, 0, NULL, 0,
1660                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1661                                                 GFP_KERNEL);
1662         }
1663
1664         return 0;
1665 }
1666
1667 /*
1668  * This function sets following parameters for ibss network.
1669  *  -  channel
1670  *  -  start band
1671  *  -  11n flag
1672  *  -  secondary channel offset
1673  */
1674 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1675                                    struct cfg80211_ibss_params *params)
1676 {
1677         struct wiphy *wiphy = priv->wdev->wiphy;
1678         struct mwifiex_adapter *adapter = priv->adapter;
1679         int index = 0, i;
1680         u8 config_bands = 0;
1681
1682         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1683                 if (!params->basic_rates) {
1684                         config_bands = BAND_B | BAND_G;
1685                 } else {
1686                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1687                                 /*
1688                                  * Rates below 6 Mbps in the table are CCK
1689                                  * rates; 802.11b and from 6 they are OFDM;
1690                                  * 802.11G
1691                                  */
1692                                 if (mwifiex_rates[i].bitrate == 60) {
1693                                         index = 1 << i;
1694                                         break;
1695                                 }
1696                         }
1697
1698                         if (params->basic_rates < index) {
1699                                 config_bands = BAND_B;
1700                         } else {
1701                                 config_bands = BAND_G;
1702                                 if (params->basic_rates % index)
1703                                         config_bands |= BAND_B;
1704                         }
1705                 }
1706
1707                 if (cfg80211_get_chandef_type(&params->chandef) !=
1708                                                 NL80211_CHAN_NO_HT)
1709                         config_bands |= BAND_GN;
1710         } else {
1711                 if (cfg80211_get_chandef_type(&params->chandef) !=
1712                                                 NL80211_CHAN_NO_HT)
1713                         config_bands = BAND_A;
1714                 else
1715                         config_bands = BAND_AN | BAND_A;
1716         }
1717
1718         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1719                 adapter->config_bands = config_bands;
1720                 adapter->adhoc_start_band = config_bands;
1721
1722                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1723                         adapter->adhoc_11n_enabled = true;
1724                 else
1725                         adapter->adhoc_11n_enabled = false;
1726         }
1727
1728         adapter->sec_chan_offset =
1729                 mwifiex_chan_type_to_sec_chan_offset(
1730                         cfg80211_get_chandef_type(&params->chandef));
1731         priv->adhoc_channel = ieee80211_frequency_to_channel(
1732                                 params->chandef.chan->center_freq);
1733
1734         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1735                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1736
1737         return 0;
1738 }
1739
1740 /*
1741  * CFG802.11 operation handler to join an IBSS.
1742  *
1743  * This function does not work in any mode other than Ad-Hoc, or if
1744  * a join operation is already in progress.
1745  */
1746 static int
1747 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1748                            struct cfg80211_ibss_params *params)
1749 {
1750         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1751         int ret = 0;
1752
1753         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1754                 wiphy_err(wiphy, "request to join ibss received "
1755                                 "when station is not in ibss mode\n");
1756                 goto done;
1757         }
1758
1759         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1760                   (char *) params->ssid, params->bssid);
1761
1762         mwifiex_set_ibss_params(priv, params);
1763
1764         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1765                                      params->bssid, priv->bss_mode,
1766                                      params->chandef.chan, NULL,
1767                                      params->privacy);
1768 done:
1769         if (!ret) {
1770                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1771                 dev_dbg(priv->adapter->dev,
1772                         "info: joined/created adhoc network with bssid"
1773                         " %pM successfully\n", priv->cfg_bssid);
1774         } else {
1775                 dev_dbg(priv->adapter->dev,
1776                         "info: failed creating/joining adhoc network\n");
1777         }
1778
1779         return ret;
1780 }
1781
1782 /*
1783  * CFG802.11 operation handler to leave an IBSS.
1784  *
1785  * This function does not work if a leave operation is
1786  * already in progress.
1787  */
1788 static int
1789 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1790 {
1791         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1792
1793         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1794                   priv->cfg_bssid);
1795         if (mwifiex_deauthenticate(priv, NULL))
1796                 return -EFAULT;
1797
1798         memset(priv->cfg_bssid, 0, ETH_ALEN);
1799
1800         return 0;
1801 }
1802
1803 /*
1804  * CFG802.11 operation handler for scan request.
1805  *
1806  * This function issues a scan request to the firmware based upon
1807  * the user specified scan configuration. On successfull completion,
1808  * it also informs the results.
1809  */
1810 static int
1811 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1812                       struct cfg80211_scan_request *request)
1813 {
1814         struct net_device *dev = request->wdev->netdev;
1815         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1816         int i, offset, ret;
1817         struct ieee80211_channel *chan;
1818         struct ieee_types_header *ie;
1819
1820         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1821
1822         if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1823             atomic_read(&priv->wmm.tx_pkts_queued) >=
1824             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1825                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1826                 return -EBUSY;
1827         }
1828
1829         if (priv->user_scan_cfg) {
1830                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1831                 return -EBUSY;
1832         }
1833
1834         priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1835                                       GFP_KERNEL);
1836         if (!priv->user_scan_cfg) {
1837                 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1838                 return -ENOMEM;
1839         }
1840
1841         priv->scan_request = request;
1842
1843         priv->user_scan_cfg->num_ssids = request->n_ssids;
1844         priv->user_scan_cfg->ssid_list = request->ssids;
1845
1846         if (request->ie && request->ie_len) {
1847                 offset = 0;
1848                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1849                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1850                                 continue;
1851                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1852                         ie = (struct ieee_types_header *)(request->ie + offset);
1853                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1854                         offset += sizeof(*ie) + ie->len;
1855
1856                         if (offset >= request->ie_len)
1857                                 break;
1858                 }
1859         }
1860
1861         for (i = 0; i < request->n_channels; i++) {
1862                 chan = request->channels[i];
1863                 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1864                 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1865
1866                 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1867                         priv->user_scan_cfg->chan_list[i].scan_type =
1868                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1869                 else
1870                         priv->user_scan_cfg->chan_list[i].scan_type =
1871                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1872
1873                 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1874         }
1875
1876         ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
1877         if (ret) {
1878                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1879                 priv->scan_request = NULL;
1880                 kfree(priv->user_scan_cfg);
1881                 priv->user_scan_cfg = NULL;
1882                 return ret;
1883         }
1884
1885         if (request->ie && request->ie_len) {
1886                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1887                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1888                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1889                                 memset(&priv->vs_ie[i].ie, 0,
1890                                        MWIFIEX_MAX_VSIE_LEN);
1891                         }
1892                 }
1893         }
1894         return 0;
1895 }
1896
1897 /*
1898  * This function sets up the CFG802.11 specific HT capability fields
1899  * with default values.
1900  *
1901  * The following default values are set -
1902  *      - HT Supported = True
1903  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1904  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1905  *      - HT Capabilities supported by firmware
1906  *      - MCS information, Rx mask = 0xff
1907  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1908  */
1909 static void
1910 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1911                       struct mwifiex_private *priv)
1912 {
1913         int rx_mcs_supp;
1914         struct ieee80211_mcs_info mcs_set;
1915         u8 *mcs = (u8 *)&mcs_set;
1916         struct mwifiex_adapter *adapter = priv->adapter;
1917
1918         ht_info->ht_supported = true;
1919         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1920         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1921
1922         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1923
1924         /* Fill HT capability information */
1925         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1926                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1927         else
1928                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1929
1930         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1931                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1932         else
1933                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1934
1935         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1936                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1937         else
1938                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1939
1940         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1941                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1942         else
1943                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1944
1945         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1946                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1947         else
1948                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1949
1950         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
1951                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
1952         else
1953                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
1954
1955         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
1956                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
1957         else
1958                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
1959
1960         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
1961                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
1962         else
1963                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
1964
1965         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1966         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1967
1968         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1969         /* Set MCS for 1x1 */
1970         memset(mcs, 0xff, rx_mcs_supp);
1971         /* Clear all the other values */
1972         memset(&mcs[rx_mcs_supp], 0,
1973                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1974         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1975             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1976                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1977                 SETHT_MCS32(mcs_set.rx_mask);
1978
1979         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1980
1981         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1982 }
1983
1984 /*
1985  *  create a new virtual interface with the given name
1986  */
1987 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1988                                               const char *name,
1989                                               enum nl80211_iftype type,
1990                                               u32 *flags,
1991                                               struct vif_params *params)
1992 {
1993         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1994         struct mwifiex_private *priv;
1995         struct net_device *dev;
1996         void *mdev_priv;
1997         struct wireless_dev *wdev;
1998
1999         if (!adapter)
2000                 return ERR_PTR(-EFAULT);
2001
2002         switch (type) {
2003         case NL80211_IFTYPE_UNSPECIFIED:
2004         case NL80211_IFTYPE_STATION:
2005         case NL80211_IFTYPE_ADHOC:
2006                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2007                 if (priv->bss_mode) {
2008                         wiphy_err(wiphy,
2009                                   "cannot create multiple sta/adhoc ifaces\n");
2010                         return ERR_PTR(-EINVAL);
2011                 }
2012
2013                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2014                 if (!wdev)
2015                         return ERR_PTR(-ENOMEM);
2016
2017                 wdev->wiphy = wiphy;
2018                 priv->wdev = wdev;
2019                 wdev->iftype = NL80211_IFTYPE_STATION;
2020
2021                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2022                         priv->bss_mode = NL80211_IFTYPE_STATION;
2023                 else
2024                         priv->bss_mode = type;
2025
2026                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2027                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2028                 priv->bss_priority = 0;
2029                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2030                 priv->bss_num = 0;
2031
2032                 break;
2033         case NL80211_IFTYPE_AP:
2034                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2035
2036                 if (priv->bss_mode) {
2037                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2038                         return ERR_PTR(-EINVAL);
2039                 }
2040
2041                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2042                 if (!wdev)
2043                         return ERR_PTR(-ENOMEM);
2044
2045                 priv->wdev = wdev;
2046                 wdev->wiphy = wiphy;
2047                 wdev->iftype = NL80211_IFTYPE_AP;
2048
2049                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2050                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2051                 priv->bss_priority = 0;
2052                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2053                 priv->bss_started = 0;
2054                 priv->bss_num = 0;
2055                 priv->bss_mode = type;
2056
2057                 break;
2058         case NL80211_IFTYPE_P2P_CLIENT:
2059                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2060
2061                 if (priv->bss_mode) {
2062                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2063                         return ERR_PTR(-EINVAL);
2064                 }
2065
2066                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2067                 if (!wdev)
2068                         return ERR_PTR(-ENOMEM);
2069
2070                 priv->wdev = wdev;
2071                 wdev->wiphy = wiphy;
2072
2073                 /* At start-up, wpa_supplicant tries to change the interface
2074                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2075                  * So, we initialize it to STA mode.
2076                  */
2077                 wdev->iftype = NL80211_IFTYPE_STATION;
2078                 priv->bss_mode = NL80211_IFTYPE_STATION;
2079
2080                 /* Setting bss_type to P2P tells firmware that this interface
2081                  * is receiving P2P peers found during find phase and doing
2082                  * action frame handshake.
2083                  */
2084                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2085
2086                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2087                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2088                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2089                 priv->bss_started = 0;
2090                 priv->bss_num = 0;
2091
2092                 break;
2093         default:
2094                 wiphy_err(wiphy, "type not supported\n");
2095                 return ERR_PTR(-EINVAL);
2096         }
2097
2098         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2099                                ether_setup, IEEE80211_NUM_ACS, 1);
2100         if (!dev) {
2101                 wiphy_err(wiphy, "no memory available for netdevice\n");
2102                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2103                 return ERR_PTR(-ENOMEM);
2104         }
2105
2106         mwifiex_init_priv_params(priv, dev);
2107         priv->netdev = dev;
2108
2109         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2110
2111         if (adapter->config_bands & BAND_A)
2112                 mwifiex_setup_ht_caps(
2113                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2114
2115         dev_net_set(dev, wiphy_net(wiphy));
2116         dev->ieee80211_ptr = priv->wdev;
2117         dev->ieee80211_ptr->iftype = priv->bss_mode;
2118         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2119         memcpy(dev->perm_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_AP_UAPSD |
2264                         WIPHY_FLAG_CUSTOM_REGULATORY |
2265                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2266
2267         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2268
2269         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2270                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2271                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2272
2273         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2274         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2275
2276         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2277                            NL80211_FEATURE_INACTIVITY_TIMER |
2278                            NL80211_FEATURE_LOW_PRIORITY_SCAN;
2279
2280         /* Reserve space for mwifiex specific private data for BSS */
2281         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2282
2283         wiphy->reg_notifier = mwifiex_reg_notifier;
2284
2285         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2286         wdev_priv = wiphy_priv(wiphy);
2287         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2288
2289         set_wiphy_dev(wiphy, priv->adapter->dev);
2290
2291         ret = wiphy_register(wiphy);
2292         if (ret < 0) {
2293                 dev_err(adapter->dev,
2294                         "%s: wiphy_register failed: %d\n", __func__, ret);
2295                 wiphy_free(wiphy);
2296                 return ret;
2297         }
2298         country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
2299         if (country_code)
2300                 dev_info(adapter->dev,
2301                          "ignoring F/W country code %2.2s\n", country_code);
2302
2303         adapter->wiphy = wiphy;
2304         return ret;
2305 }