Pileus Git - ~andy/linux/blob - 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 = prandom_u32() | 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 = prandom_u32() | 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 static void
 838 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 839                      struct rate_info *rate)
 840 {
 841         struct mwifiex_adapter *adapter = priv->adapter;
 842
 843         if (adapter->is_hw_11ac_capable) {
 844                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 845                 if (tx_htinfo & BIT(0)) {
 846                         /* HT */
 847                         rate->mcs = priv->tx_rate;
 848                         rate->flags |= RATE_INFO_FLAGS_MCS;
 849                 }
 850                 if (tx_htinfo & BIT(1)) {
 851                         /* VHT */
 852                         rate->mcs = priv->tx_rate & 0x0F;
 853                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 854                 }
 855
 856                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 857                         /* HT or VHT */
 858                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 859                         case 0:
 860                                 /* This will be 20MHz */
 861                                 break;
 862                         case (BIT(2)):
 863                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 864                                 break;
 865                         case (BIT(3)):
 866                                 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 867                                 break;
 868                         case (BIT(3) | BIT(2)):
 869                                 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 870                                 break;
 871                         }
 872
 873                         if (tx_htinfo & BIT(4))
 874                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 875
 876                         if ((priv->tx_rate >> 4) == 1)
 877                                 rate->nss = 2;
 878                         else
 879                                 rate->nss = 1;
 880                 }
 881         } else {
 882                 /*
 883                  * Bit 0 in tx_htinfo indicates that current Tx rate
 884                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 885                  */
 886                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 887                         rate->mcs = priv->tx_rate;
 888                         rate->flags |= RATE_INFO_FLAGS_MCS;
 889                         if (tx_htinfo & BIT(1))
 890                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 891                         if (tx_htinfo & BIT(2))
 892                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 893                 }
 894         }
 895 }
 896
 897 /*
 898  * This function dumps the station information on a buffer.
 899  *
 900  * The following information are shown -
 901  *      - Total bytes transmitted
 902  *      - Total bytes received
 903  *      - Total packets transmitted
 904  *      - Total packets received
 905  *      - Signal quality level
 906  *      - Transmission rate
 907  */
 908 static int
 909 mwifiex_dump_station_info(struct mwifiex_private *priv,
 910                           struct station_info *sinfo)
 911 {
 912         u32 rate;
 913
 914         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 915                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 916                         STATION_INFO_TX_BITRATE |
 917                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 918
 919         /* Get signal information from the firmware */
 920         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 921                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 922                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 923                 return -EFAULT;
 924         }
 925
 926         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 927                 dev_err(priv->adapter->dev, "getting data rate\n");
 928                 return -EFAULT;
 929         }
 930
 931         /* Get DTIM period information from firmware */
 932         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 933                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 934                               &priv->dtim_period);
 935
 936         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 937
 938         sinfo->signal_avg = priv->bcn_rssi_avg;
 939         sinfo->rx_bytes = priv->stats.rx_bytes;
 940         sinfo->tx_bytes = priv->stats.tx_bytes;
 941         sinfo->rx_packets = priv->stats.rx_packets;
 942         sinfo->tx_packets = priv->stats.tx_packets;
 943         sinfo->signal = priv->bcn_rssi_avg;
 944         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 945         sinfo->txrate.legacy = rate * 5;
 946
 947         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 948                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 949                 sinfo->bss_param.flags = 0;
 950                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 951                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 952                         sinfo->bss_param.flags |=
 953                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 954                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 955                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 956                         sinfo->bss_param.flags |=
 957                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 958                 sinfo->bss_param.dtim_period = priv->dtim_period;
 959                 sinfo->bss_param.beacon_interval =
 960                         priv->curr_bss_params.bss_descriptor.beacon_period;
 961         }
 962
 963         return 0;
 964 }
 965
 966 /*
 967  * CFG802.11 operation handler to get station information.
 968  *
 969  * This function only works in connected mode, and dumps the
 970  * requested station information, if available.
 971  */
 972 static int
 973 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 974                              u8 *mac, struct station_info *sinfo)
 975 {
 976         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 977
 978         if (!priv->media_connected)
 979                 return -ENOENT;
 980         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
 981                 return -ENOENT;
 982
 983         return mwifiex_dump_station_info(priv, sinfo);
 984 }
 985
 986 /*
 987  * CFG802.11 operation handler to dump station information.
 988  */
 989 static int
 990 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 991                               int idx, u8 *mac, struct station_info *sinfo)
 992 {
 993         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 994
 995         if (!priv->media_connected || idx)
 996                 return -ENOENT;
 997
 998         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
 999
1000         return mwifiex_dump_station_info(priv, sinfo);
1001 }
1002
1003 /* Supported rates to be advertised to the cfg80211 */
1004 static struct ieee80211_rate mwifiex_rates[] = {
1005         {.bitrate = 10, .hw_value = 2, },
1006         {.bitrate = 20, .hw_value = 4, },
1007         {.bitrate = 55, .hw_value = 11, },
1008         {.bitrate = 110, .hw_value = 22, },
1009         {.bitrate = 60, .hw_value = 12, },
1010         {.bitrate = 90, .hw_value = 18, },
1011         {.bitrate = 120, .hw_value = 24, },
1012         {.bitrate = 180, .hw_value = 36, },
1013         {.bitrate = 240, .hw_value = 48, },
1014         {.bitrate = 360, .hw_value = 72, },
1015         {.bitrate = 480, .hw_value = 96, },
1016         {.bitrate = 540, .hw_value = 108, },
1017 };
1018
1019 /* Channel definitions to be advertised to cfg80211 */
1020 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1021         {.center_freq = 2412, .hw_value = 1, },
1022         {.center_freq = 2417, .hw_value = 2, },
1023         {.center_freq = 2422, .hw_value = 3, },
1024         {.center_freq = 2427, .hw_value = 4, },
1025         {.center_freq = 2432, .hw_value = 5, },
1026         {.center_freq = 2437, .hw_value = 6, },
1027         {.center_freq = 2442, .hw_value = 7, },
1028         {.center_freq = 2447, .hw_value = 8, },
1029         {.center_freq = 2452, .hw_value = 9, },
1030         {.center_freq = 2457, .hw_value = 10, },
1031         {.center_freq = 2462, .hw_value = 11, },
1032         {.center_freq = 2467, .hw_value = 12, },
1033         {.center_freq = 2472, .hw_value = 13, },
1034         {.center_freq = 2484, .hw_value = 14, },
1035 };
1036
1037 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1038         .channels = mwifiex_channels_2ghz,
1039         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1040         .bitrates = mwifiex_rates,
1041         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1042 };
1043
1044 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1045         {.center_freq = 5040, .hw_value = 8, },
1046         {.center_freq = 5060, .hw_value = 12, },
1047         {.center_freq = 5080, .hw_value = 16, },
1048         {.center_freq = 5170, .hw_value = 34, },
1049         {.center_freq = 5190, .hw_value = 38, },
1050         {.center_freq = 5210, .hw_value = 42, },
1051         {.center_freq = 5230, .hw_value = 46, },
1052         {.center_freq = 5180, .hw_value = 36, },
1053         {.center_freq = 5200, .hw_value = 40, },
1054         {.center_freq = 5220, .hw_value = 44, },
1055         {.center_freq = 5240, .hw_value = 48, },
1056         {.center_freq = 5260, .hw_value = 52, },
1057         {.center_freq = 5280, .hw_value = 56, },
1058         {.center_freq = 5300, .hw_value = 60, },
1059         {.center_freq = 5320, .hw_value = 64, },
1060         {.center_freq = 5500, .hw_value = 100, },
1061         {.center_freq = 5520, .hw_value = 104, },
1062         {.center_freq = 5540, .hw_value = 108, },
1063         {.center_freq = 5560, .hw_value = 112, },
1064         {.center_freq = 5580, .hw_value = 116, },
1065         {.center_freq = 5600, .hw_value = 120, },
1066         {.center_freq = 5620, .hw_value = 124, },
1067         {.center_freq = 5640, .hw_value = 128, },
1068         {.center_freq = 5660, .hw_value = 132, },
1069         {.center_freq = 5680, .hw_value = 136, },
1070         {.center_freq = 5700, .hw_value = 140, },
1071         {.center_freq = 5745, .hw_value = 149, },
1072         {.center_freq = 5765, .hw_value = 153, },
1073         {.center_freq = 5785, .hw_value = 157, },
1074         {.center_freq = 5805, .hw_value = 161, },
1075         {.center_freq = 5825, .hw_value = 165, },
1076 };
1077
1078 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1079         .channels = mwifiex_channels_5ghz,
1080         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1081         .bitrates = mwifiex_rates + 4,
1082         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1083 };
1084
1085
1086 /* Supported crypto cipher suits to be advertised to cfg80211 */
1087 static const u32 mwifiex_cipher_suites[] = {
1088         WLAN_CIPHER_SUITE_WEP40,
1089         WLAN_CIPHER_SUITE_WEP104,
1090         WLAN_CIPHER_SUITE_TKIP,
1091         WLAN_CIPHER_SUITE_CCMP,
1092         WLAN_CIPHER_SUITE_AES_CMAC,
1093 };
1094
1095 /* Supported mgmt frame types to be advertised to cfg80211 */
1096 static const struct ieee80211_txrx_stypes
1097 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1098         [NL80211_IFTYPE_STATION] = {
1099                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1100                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1101                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1102                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1103         },
1104         [NL80211_IFTYPE_AP] = {
1105                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1106                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1107                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1108                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1109         },
1110         [NL80211_IFTYPE_P2P_CLIENT] = {
1111                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1112                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1113                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1114                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1115         },
1116         [NL80211_IFTYPE_P2P_GO] = {
1117                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1118                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1119                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1120                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1121         },
1122 };
1123
1124 /*
1125  * CFG802.11 operation handler for setting bit rates.
1126  *
1127  * Function configures data rates to firmware using bitrate mask
1128  * provided by cfg80211.
1129  */
1130 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1131                                 struct net_device *dev,
1132                                 const u8 *peer,
1133                                 const struct cfg80211_bitrate_mask *mask)
1134 {
1135         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1136         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1137         enum ieee80211_band band;
1138
1139         if (!priv->media_connected) {
1140                 dev_err(priv->adapter->dev,
1141                         "Can not set Tx data rate in disconnected state\n");
1142                 return -EINVAL;
1143         }
1144
1145         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1146
1147         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1148
1149         /* Fill HR/DSSS rates. */
1150         if (band == IEEE80211_BAND_2GHZ)
1151                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1152
1153         /* Fill OFDM rates */
1154         if (band == IEEE80211_BAND_2GHZ)
1155                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1156         else
1157                 bitmap_rates[1] = mask->control[band].legacy;
1158
1159         /* Fill MCS rates */
1160         bitmap_rates[2] = mask->control[band].mcs[0];
1161         if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1162                 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
1163
1164         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1165                                      HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1166 }
1167
1168 /*
1169  * CFG802.11 operation handler for connection quality monitoring.
1170  *
1171  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1172  * events to FW.
1173  */
1174 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1175                                                 struct net_device *dev,
1176                                                 s32 rssi_thold, u32 rssi_hyst)
1177 {
1178         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1179         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1180
1181         priv->cqm_rssi_thold = rssi_thold;
1182         priv->cqm_rssi_hyst = rssi_hyst;
1183
1184         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1185         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1186
1187         /* Subscribe/unsubscribe low and high rssi events */
1188         if (rssi_thold && rssi_hyst) {
1189                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1190                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1191                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1192                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1193                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1194                 return mwifiex_send_cmd_sync(priv,
1195                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1196                                              0, 0, &subsc_evt);
1197         } else {
1198                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1199                 return mwifiex_send_cmd_sync(priv,
1200                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1201                                              0, 0, &subsc_evt);
1202         }
1203
1204         return 0;
1205 }
1206
1207 /* cfg80211 operation handler for change_beacon.
1208  * Function retrieves and sets modified management IEs to FW.
1209  */
1210 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1211                                           struct net_device *dev,
1212                                           struct cfg80211_beacon_data *data)
1213 {
1214         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1215
1216         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1217                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1218                 return -EINVAL;
1219         }
1220
1221         if (!priv->bss_started) {
1222                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1223                 return -EINVAL;
1224         }
1225
1226         if (mwifiex_set_mgmt_ies(priv, data)) {
1227                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1228                 return -EFAULT;
1229         }
1230
1231         return 0;
1232 }
1233
1234 static int
1235 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1236 {
1237         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1238         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1239                                                         MWIFIEX_BSS_ROLE_ANY);
1240         struct mwifiex_ds_ant_cfg ant_cfg;
1241
1242         if (!tx_ant || !rx_ant)
1243                 return -EOPNOTSUPP;
1244
1245         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1246                 /* Not a MIMO chip. User should provide specific antenna number
1247                  * for Tx/Rx path or enable all antennas for diversity
1248                  */
1249                 if (tx_ant != rx_ant)
1250                         return -EOPNOTSUPP;
1251
1252                 if ((tx_ant & (tx_ant - 1)) &&
1253                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1254                         return -EOPNOTSUPP;
1255
1256                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1257                     (priv->adapter->number_of_antenna > 1)) {
1258                         tx_ant = RF_ANTENNA_AUTO;
1259                         rx_ant = RF_ANTENNA_AUTO;
1260                 }
1261         }
1262
1263         ant_cfg.tx_ant = tx_ant;
1264         ant_cfg.rx_ant = rx_ant;
1265
1266         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1267                                      HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1268 }
1269
1270 /* cfg80211 operation handler for stop ap.
1271  * Function stops BSS running at uAP interface.
1272  */
1273 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1274 {
1275         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1276
1277         if (mwifiex_del_mgmt_ies(priv))
1278                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1279
1280         priv->ap_11n_enabled = 0;
1281
1282         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1283                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1284                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1285                 return -1;
1286         }
1287
1288         return 0;
1289 }
1290
1291 /* cfg80211 operation handler for start_ap.
1292  * Function sets beacon period, DTIM period, SSID and security into
1293  * AP config structure.
1294  * AP is configured with these settings and BSS is started.
1295  */
1296 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1297                                      struct net_device *dev,
1298                                      struct cfg80211_ap_settings *params)
1299 {
1300         struct mwifiex_uap_bss_param *bss_cfg;
1301         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1302         u8 config_bands = 0;
1303
1304         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1305                 return -1;
1306         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1307                 return -1;
1308
1309         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1310         if (!bss_cfg)
1311                 return -ENOMEM;
1312
1313         mwifiex_set_sys_config_invalid_data(bss_cfg);
1314
1315         if (params->beacon_interval)
1316                 bss_cfg->beacon_period = params->beacon_interval;
1317         if (params->dtim_period)
1318                 bss_cfg->dtim_period = params->dtim_period;
1319
1320         if (params->ssid && params->ssid_len) {
1321                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1322                 bss_cfg->ssid.ssid_len = params->ssid_len;
1323         }
1324
1325         switch (params->hidden_ssid) {
1326         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1327                 bss_cfg->bcast_ssid_ctl = 1;
1328                 break;
1329         case NL80211_HIDDEN_SSID_ZERO_LEN:
1330                 bss_cfg->bcast_ssid_ctl = 0;
1331                 break;
1332         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1333                 /* firmware doesn't support this type of hidden SSID */
1334         default:
1335                 kfree(bss_cfg);
1336                 return -EINVAL;
1337         }
1338
1339         bss_cfg->channel = ieee80211_frequency_to_channel(
1340                                 params->chandef.chan->center_freq);
1341
1342         /* Set appropriate bands */
1343         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1344                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1345                 config_bands = BAND_B | BAND_G;
1346
1347                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1348                         config_bands |= BAND_GN;
1349
1350                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1351                         config_bands |= BAND_GAC;
1352         } else {
1353                 bss_cfg->band_cfg = BAND_CONFIG_A;
1354                 config_bands = BAND_A;
1355
1356                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1357                         config_bands |= BAND_AN;
1358
1359                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1360                         config_bands |= BAND_AAC;
1361         }
1362
1363         if (!((config_bands | priv->adapter->fw_bands) &
1364               ~priv->adapter->fw_bands))
1365                 priv->adapter->config_bands = config_bands;
1366
1367         mwifiex_set_uap_rates(bss_cfg, params);
1368         mwifiex_send_domain_info_cmd_fw(wiphy);
1369
1370         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1371                 kfree(bss_cfg);
1372                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1373                 return -1;
1374         }
1375
1376         mwifiex_set_ht_params(priv, bss_cfg, params);
1377
1378         if (priv->adapter->is_hw_11ac_capable) {
1379                 mwifiex_set_vht_params(priv, bss_cfg, params);
1380                 mwifiex_set_vht_width(priv, params->chandef.width,
1381                                       priv->ap_11ac_enabled);
1382         }
1383
1384         if (priv->ap_11ac_enabled)
1385                 mwifiex_set_11ac_ba_params(priv);
1386         else
1387                 mwifiex_set_ba_params(priv);
1388
1389         mwifiex_set_wmm_params(priv, bss_cfg, params);
1390
1391         if (params->inactivity_timeout > 0) {
1392                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1393                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1394                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1395         }
1396
1397         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1398                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1399                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1400                 kfree(bss_cfg);
1401                 return -1;
1402         }
1403
1404         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1405                                    HostCmd_ACT_GEN_SET,
1406                                    UAP_BSS_PARAMS_I, bss_cfg)) {
1407                 wiphy_err(wiphy, "Failed to set the SSID\n");
1408                 kfree(bss_cfg);
1409                 return -1;
1410         }
1411
1412         kfree(bss_cfg);
1413
1414         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1415                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
1416                 wiphy_err(wiphy, "Failed to start the BSS\n");
1417                 return -1;
1418         }
1419
1420         if (priv->sec_info.wep_enabled)
1421                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1422         else
1423                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1424
1425         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1426                                   HostCmd_ACT_GEN_SET, 0,
1427                                   &priv->curr_pkt_filter))
1428                 return -1;
1429
1430         return 0;
1431 }
1432
1433 /*
1434  * CFG802.11 operation handler for disconnection request.
1435  *
1436  * This function does not work when there is already a disconnection
1437  * procedure going on.
1438  */
1439 static int
1440 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1441                             u16 reason_code)
1442 {
1443         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1444
1445         if (mwifiex_deauthenticate(priv, NULL))
1446                 return -EFAULT;
1447
1448         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1449                 " reason code %d\n", priv->cfg_bssid, reason_code);
1450
1451         memset(priv->cfg_bssid, 0, ETH_ALEN);
1452
1453         return 0;
1454 }
1455
1456 /*
1457  * This function informs the CFG802.11 subsystem of a new IBSS.
1458  *
1459  * The following information are sent to the CFG802.11 subsystem
1460  * to register the new IBSS. If we do not register the new IBSS,
1461  * a kernel panic will result.
1462  *      - SSID
1463  *      - SSID length
1464  *      - BSSID
1465  *      - Channel
1466  */
1467 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1468 {
1469         struct ieee80211_channel *chan;
1470         struct mwifiex_bss_info bss_info;
1471         struct cfg80211_bss *bss;
1472         int ie_len;
1473         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1474         enum ieee80211_band band;
1475
1476         if (mwifiex_get_bss_info(priv, &bss_info))
1477                 return -1;
1478
1479         ie_buf[0] = WLAN_EID_SSID;
1480         ie_buf[1] = bss_info.ssid.ssid_len;
1481
1482         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1483                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1484         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1485
1486         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1487         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1488                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1489                                                        band));
1490
1491         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1492                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1493                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1494         cfg80211_put_bss(priv->wdev->wiphy, bss);
1495         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1496
1497         return 0;
1498 }
1499
1500 /*
1501  * This function connects with a BSS.
1502  *
1503  * This function handles both Infra and Ad-Hoc modes. It also performs
1504  * validity checking on the provided parameters, disconnects from the
1505  * current BSS (if any), sets up the association/scan parameters,
1506  * including security settings, and performs specific SSID scan before
1507  * trying to connect.
1508  *
1509  * For Infra mode, the function returns failure if the specified SSID
1510  * is not found in scan table. However, for Ad-Hoc mode, it can create
1511  * the IBSS if it does not exist. On successful completion in either case,
1512  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1513  */
1514 static int
1515 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1516                        u8 *bssid, int mode, struct ieee80211_channel *channel,
1517                        struct cfg80211_connect_params *sme, bool privacy)
1518 {
1519         struct cfg80211_ssid req_ssid;
1520         int ret, auth_type = 0;
1521         struct cfg80211_bss *bss = NULL;
1522         u8 is_scanning_required = 0;
1523
1524         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1525
1526         req_ssid.ssid_len = ssid_len;
1527         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1528                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1529                 return -EINVAL;
1530         }
1531
1532         memcpy(req_ssid.ssid, ssid, ssid_len);
1533         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1534                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1535                 return -EINVAL;
1536         }
1537
1538         /* disconnect before try to associate */
1539         mwifiex_deauthenticate(priv, NULL);
1540
1541         /* As this is new association, clear locally stored
1542          * keys and security related flags */
1543         priv->sec_info.wpa_enabled = false;
1544         priv->sec_info.wpa2_enabled = false;
1545         priv->wep_key_curr_index = 0;
1546         priv->sec_info.encryption_mode = 0;
1547         priv->sec_info.is_authtype_auto = 0;
1548         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1549
1550         if (mode == NL80211_IFTYPE_ADHOC) {
1551                 /* "privacy" is set only for ad-hoc mode */
1552                 if (privacy) {
1553                         /*
1554                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1555                          * the firmware can find a matching network from the
1556                          * scan. The cfg80211 does not give us the encryption
1557                          * mode at this stage so just setting it to WEP here.
1558                          */
1559                         priv->sec_info.encryption_mode =
1560                                         WLAN_CIPHER_SUITE_WEP104;
1561                         priv->sec_info.authentication_mode =
1562                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1563                 }
1564
1565                 goto done;
1566         }
1567
1568         /* Now handle infra mode. "sme" is valid for infra mode only */
1569         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1570                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1571                 priv->sec_info.is_authtype_auto = 1;
1572         } else {
1573                 auth_type = sme->auth_type;
1574         }
1575
1576         if (sme->crypto.n_ciphers_pairwise) {
1577                 priv->sec_info.encryption_mode =
1578                                                 sme->crypto.ciphers_pairwise[0];
1579                 priv->sec_info.authentication_mode = auth_type;
1580         }
1581
1582         if (sme->crypto.cipher_group) {
1583                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1584                 priv->sec_info.authentication_mode = auth_type;
1585         }
1586         if (sme->ie)
1587                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1588
1589         if (sme->key) {
1590                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1591                         dev_dbg(priv->adapter->dev,
1592                                 "info: setting wep encryption"
1593                                 " with key len %d\n", sme->key_len);
1594                         priv->wep_key_curr_index = sme->key_idx;
1595                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1596                                                  sme->key_len, sme->key_idx,
1597                                                  NULL, 0);
1598                 }
1599         }
1600 done:
1601         /*
1602          * Scan entries are valid for some time (15 sec). So we can save one
1603          * active scan time if we just try cfg80211_get_bss first. If it fails
1604          * then request scan and cfg80211_get_bss() again for final output.
1605          */
1606         while (1) {
1607                 if (is_scanning_required) {
1608                         /* Do specific SSID scanning */
1609                         if (mwifiex_request_scan(priv, &req_ssid)) {
1610                                 dev_err(priv->adapter->dev, "scan error\n");
1611                                 return -EFAULT;
1612                         }
1613                 }
1614
1615                 /* Find the BSS we want using available scan results */
1616                 if (mode == NL80211_IFTYPE_ADHOC)
1617                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1618                                                bssid, ssid, ssid_len,
1619                                                WLAN_CAPABILITY_IBSS,
1620                                                WLAN_CAPABILITY_IBSS);
1621                 else
1622                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1623                                                bssid, ssid, ssid_len,
1624                                                WLAN_CAPABILITY_ESS,
1625                                                WLAN_CAPABILITY_ESS);
1626
1627                 if (!bss) {
1628                         if (is_scanning_required) {
1629                                 dev_warn(priv->adapter->dev,
1630                                          "assoc: requested bss not found in scan results\n");
1631                                 break;
1632                         }
1633                         is_scanning_required = 1;
1634                 } else {
1635                         dev_dbg(priv->adapter->dev,
1636                                 "info: trying to associate to '%s' bssid %pM\n",
1637                                 (char *) req_ssid.ssid, bss->bssid);
1638                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1639                         break;
1640                 }
1641         }
1642
1643         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1644         if (ret)
1645                 return ret;
1646
1647         if (mode == NL80211_IFTYPE_ADHOC) {
1648                 /* Inform the BSS information to kernel, otherwise
1649                  * kernel will give a panic after successful assoc */
1650                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1651                         return -EFAULT;
1652         }
1653
1654         return ret;
1655 }
1656
1657 /*
1658  * CFG802.11 operation handler for association request.
1659  *
1660  * This function does not work when the current mode is set to Ad-Hoc, or
1661  * when there is already an association procedure going on. The given BSS
1662  * information is used to associate.
1663  */
1664 static int
1665 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1666                          struct cfg80211_connect_params *sme)
1667 {
1668         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1669         int ret;
1670
1671         if (priv->bss_mode != NL80211_IFTYPE_STATION) {
1672                 wiphy_err(wiphy,
1673                           "%s: reject infra assoc request in non-STA mode\n",
1674                           dev->name);
1675                 return -EINVAL;
1676         }
1677
1678         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1679                   (char *) sme->ssid, sme->bssid);
1680
1681         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1682                                      priv->bss_mode, sme->channel, sme, 0);
1683         if (!ret) {
1684                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1685                                         NULL, 0, WLAN_STATUS_SUCCESS,
1686                                         GFP_KERNEL);
1687                 dev_dbg(priv->adapter->dev,
1688                         "info: associated to bssid %pM successfully\n",
1689                         priv->cfg_bssid);
1690         } else {
1691                 dev_dbg(priv->adapter->dev,
1692                         "info: association to bssid %pM failed\n",
1693                         priv->cfg_bssid);
1694                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1695
1696                 if (ret > 0)
1697                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1698                                                 NULL, 0, NULL, 0, ret,
1699                                                 GFP_KERNEL);
1700                 else
1701                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1702                                                 NULL, 0, NULL, 0,
1703                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1704                                                 GFP_KERNEL);
1705         }
1706
1707         return 0;
1708 }
1709
1710 /*
1711  * This function sets following parameters for ibss network.
1712  *  -  channel
1713  *  -  start band
1714  *  -  11n flag
1715  *  -  secondary channel offset
1716  */
1717 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1718                                    struct cfg80211_ibss_params *params)
1719 {
1720         struct wiphy *wiphy = priv->wdev->wiphy;
1721         struct mwifiex_adapter *adapter = priv->adapter;
1722         int index = 0, i;
1723         u8 config_bands = 0;
1724
1725         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1726                 if (!params->basic_rates) {
1727                         config_bands = BAND_B | BAND_G;
1728                 } else {
1729                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1730                                 /*
1731                                  * Rates below 6 Mbps in the table are CCK
1732                                  * rates; 802.11b and from 6 they are OFDM;
1733                                  * 802.11G
1734                                  */
1735                                 if (mwifiex_rates[i].bitrate == 60) {
1736                                         index = 1 << i;
1737                                         break;
1738                                 }
1739                         }
1740
1741                         if (params->basic_rates < index) {
1742                                 config_bands = BAND_B;
1743                         } else {
1744                                 config_bands = BAND_G;
1745                                 if (params->basic_rates % index)
1746                                         config_bands |= BAND_B;
1747                         }
1748                 }
1749
1750                 if (cfg80211_get_chandef_type(&params->chandef) !=
1751                                                 NL80211_CHAN_NO_HT)
1752                         config_bands |= BAND_G | BAND_GN;
1753         } else {
1754                 if (cfg80211_get_chandef_type(&params->chandef) ==
1755                                                 NL80211_CHAN_NO_HT)
1756                         config_bands = BAND_A;
1757                 else
1758                         config_bands = BAND_AN | BAND_A;
1759         }
1760
1761         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1762                 adapter->config_bands = config_bands;
1763                 adapter->adhoc_start_band = config_bands;
1764
1765                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1766                         adapter->adhoc_11n_enabled = true;
1767                 else
1768                         adapter->adhoc_11n_enabled = false;
1769         }
1770
1771         adapter->sec_chan_offset =
1772                 mwifiex_chan_type_to_sec_chan_offset(
1773                         cfg80211_get_chandef_type(&params->chandef));
1774         priv->adhoc_channel = ieee80211_frequency_to_channel(
1775                                 params->chandef.chan->center_freq);
1776
1777         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1778                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1779
1780         return 0;
1781 }
1782
1783 /*
1784  * CFG802.11 operation handler to join an IBSS.
1785  *
1786  * This function does not work in any mode other than Ad-Hoc, or if
1787  * a join operation is already in progress.
1788  */
1789 static int
1790 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1791                            struct cfg80211_ibss_params *params)
1792 {
1793         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1794         int ret = 0;
1795
1796         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1797                 wiphy_err(wiphy, "request to join ibss received "
1798                                 "when station is not in ibss mode\n");
1799                 goto done;
1800         }
1801
1802         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1803                   (char *) params->ssid, params->bssid);
1804
1805         mwifiex_set_ibss_params(priv, params);
1806
1807         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1808                                      params->bssid, priv->bss_mode,
1809                                      params->chandef.chan, NULL,
1810                                      params->privacy);
1811 done:
1812         if (!ret) {
1813                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1814                 dev_dbg(priv->adapter->dev,
1815                         "info: joined/created adhoc network with bssid"
1816                         " %pM successfully\n", priv->cfg_bssid);
1817         } else {
1818                 dev_dbg(priv->adapter->dev,
1819                         "info: failed creating/joining adhoc network\n");
1820         }
1821
1822         return ret;
1823 }
1824
1825 /*
1826  * CFG802.11 operation handler to leave an IBSS.
1827  *
1828  * This function does not work if a leave operation is
1829  * already in progress.
1830  */
1831 static int
1832 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1833 {
1834         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1835
1836         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1837                   priv->cfg_bssid);
1838         if (mwifiex_deauthenticate(priv, NULL))
1839                 return -EFAULT;
1840
1841         memset(priv->cfg_bssid, 0, ETH_ALEN);
1842
1843         return 0;
1844 }
1845
1846 /*
1847  * CFG802.11 operation handler for scan request.
1848  *
1849  * This function issues a scan request to the firmware based upon
1850  * the user specified scan configuration. On successfull completion,
1851  * it also informs the results.
1852  */
1853 static int
1854 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1855                       struct cfg80211_scan_request *request)
1856 {
1857         struct net_device *dev = request->wdev->netdev;
1858         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1859         int i, offset, ret;
1860         struct ieee80211_channel *chan;
1861         struct ieee_types_header *ie;
1862
1863         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1864
1865         if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1866             atomic_read(&priv->wmm.tx_pkts_queued) >=
1867             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1868                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1869                 return -EBUSY;
1870         }
1871
1872         if (priv->user_scan_cfg) {
1873                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1874                 return -EBUSY;
1875         }
1876
1877         priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1878                                       GFP_KERNEL);
1879         if (!priv->user_scan_cfg)
1880                 return -ENOMEM;
1881
1882         priv->scan_request = request;
1883
1884         priv->user_scan_cfg->num_ssids = request->n_ssids;
1885         priv->user_scan_cfg->ssid_list = request->ssids;
1886
1887         if (request->ie && request->ie_len) {
1888                 offset = 0;
1889                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1890                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1891                                 continue;
1892                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1893                         ie = (struct ieee_types_header *)(request->ie + offset);
1894                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1895                         offset += sizeof(*ie) + ie->len;
1896
1897                         if (offset >= request->ie_len)
1898                                 break;
1899                 }
1900         }
1901
1902         for (i = 0; i < min_t(u32, request->n_channels,
1903                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
1904                 chan = request->channels[i];
1905                 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1906                 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1907
1908                 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1909                         priv->user_scan_cfg->chan_list[i].scan_type =
1910                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1911                 else
1912                         priv->user_scan_cfg->chan_list[i].scan_type =
1913                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1914
1915                 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1916         }
1917
1918         ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
1919         if (ret) {
1920                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1921                 priv->scan_request = NULL;
1922                 kfree(priv->user_scan_cfg);
1923                 priv->user_scan_cfg = NULL;
1924                 return ret;
1925         }
1926
1927         if (request->ie && request->ie_len) {
1928                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1929                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1930                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1931                                 memset(&priv->vs_ie[i].ie, 0,
1932                                        MWIFIEX_MAX_VSIE_LEN);
1933                         }
1934                 }
1935         }
1936         return 0;
1937 }
1938
1939 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
1940                                    struct mwifiex_private *priv)
1941 {
1942         struct mwifiex_adapter *adapter = priv->adapter;
1943
1944         vht_info->vht_supported = true;
1945
1946         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
1947         /* Update MCS support for VHT */
1948         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
1949                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
1950         vht_info->vht_mcs.rx_highest = 0;
1951         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
1952                                 adapter->hw_dot_11ac_mcs_support >> 16);
1953         vht_info->vht_mcs.tx_highest = 0;
1954 }
1955
1956 /*
1957  * This function sets up the CFG802.11 specific HT capability fields
1958  * with default values.
1959  *
1960  * The following default values are set -
1961  *      - HT Supported = True
1962  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1963  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1964  *      - HT Capabilities supported by firmware
1965  *      - MCS information, Rx mask = 0xff
1966  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1967  */
1968 static void
1969 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1970                       struct mwifiex_private *priv)
1971 {
1972         int rx_mcs_supp;
1973         struct ieee80211_mcs_info mcs_set;
1974         u8 *mcs = (u8 *)&mcs_set;
1975         struct mwifiex_adapter *adapter = priv->adapter;
1976
1977         ht_info->ht_supported = true;
1978         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1979         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1980
1981         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1982
1983         /* Fill HT capability information */
1984         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1985                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1986         else
1987                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1988
1989         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1990                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1991         else
1992                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1993
1994         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1995                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1996         else
1997                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1998
1999         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
2000                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2001         else
2002                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
2003
2004         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2005                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2006         else
2007                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2008
2009         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2010                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2011         else
2012                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2013
2014         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2015                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2016         else
2017                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2018
2019         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2020                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2021         else
2022                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2023
2024         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2025         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2026
2027         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
2028         /* Set MCS for 1x1 */
2029         memset(mcs, 0xff, rx_mcs_supp);
2030         /* Clear all the other values */
2031         memset(&mcs[rx_mcs_supp], 0,
2032                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2033         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2034             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2035                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2036                 SETHT_MCS32(mcs_set.rx_mask);
2037
2038         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2039
2040         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2041 }
2042
2043 /*
2044  *  create a new virtual interface with the given name
2045  */
2046 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2047                                               const char *name,
2048                                               enum nl80211_iftype type,
2049                                               u32 *flags,
2050                                               struct vif_params *params)
2051 {
2052         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2053         struct mwifiex_private *priv;
2054         struct net_device *dev;
2055         void *mdev_priv;
2056         struct wireless_dev *wdev;
2057
2058         if (!adapter)
2059                 return ERR_PTR(-EFAULT);
2060
2061         switch (type) {
2062         case NL80211_IFTYPE_UNSPECIFIED:
2063         case NL80211_IFTYPE_STATION:
2064         case NL80211_IFTYPE_ADHOC:
2065                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2066                 if (priv->bss_mode) {
2067                         wiphy_err(wiphy,
2068                                   "cannot create multiple sta/adhoc ifaces\n");
2069                         return ERR_PTR(-EINVAL);
2070                 }
2071
2072                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2073                 if (!wdev)
2074                         return ERR_PTR(-ENOMEM);
2075
2076                 wdev->wiphy = wiphy;
2077                 priv->wdev = wdev;
2078                 wdev->iftype = NL80211_IFTYPE_STATION;
2079
2080                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2081                         priv->bss_mode = NL80211_IFTYPE_STATION;
2082                 else
2083                         priv->bss_mode = type;
2084
2085                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2086                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2087                 priv->bss_priority = 0;
2088                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2089                 priv->bss_num = 0;
2090
2091                 break;
2092         case NL80211_IFTYPE_AP:
2093                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2094
2095                 if (priv->bss_mode) {
2096                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2097                         return ERR_PTR(-EINVAL);
2098                 }
2099
2100                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2101                 if (!wdev)
2102                         return ERR_PTR(-ENOMEM);
2103
2104                 priv->wdev = wdev;
2105                 wdev->wiphy = wiphy;
2106                 wdev->iftype = NL80211_IFTYPE_AP;
2107
2108                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2109                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2110                 priv->bss_priority = 0;
2111                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2112                 priv->bss_started = 0;
2113                 priv->bss_num = 0;
2114                 priv->bss_mode = type;
2115
2116                 break;
2117         case NL80211_IFTYPE_P2P_CLIENT:
2118                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2119
2120                 if (priv->bss_mode) {
2121                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2122                         return ERR_PTR(-EINVAL);
2123                 }
2124
2125                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2126                 if (!wdev)
2127                         return ERR_PTR(-ENOMEM);
2128
2129                 priv->wdev = wdev;
2130                 wdev->wiphy = wiphy;
2131
2132                 /* At start-up, wpa_supplicant tries to change the interface
2133                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2134                  */
2135                 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2136                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2137
2138                 /* Setting bss_type to P2P tells firmware that this interface
2139                  * is receiving P2P peers found during find phase and doing
2140                  * action frame handshake.
2141                  */
2142                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2143
2144                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2145                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2146                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2147                 priv->bss_started = 0;
2148                 priv->bss_num = 0;
2149
2150                 if (mwifiex_cfg80211_init_p2p_client(priv))
2151                         return ERR_PTR(-EFAULT);
2152
2153                 break;
2154         default:
2155                 wiphy_err(wiphy, "type not supported\n");
2156                 return ERR_PTR(-EINVAL);
2157         }
2158
2159         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2160                                ether_setup, IEEE80211_NUM_ACS, 1);
2161         if (!dev) {
2162                 wiphy_err(wiphy, "no memory available for netdevice\n");
2163                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2164                 return ERR_PTR(-ENOMEM);
2165         }
2166
2167         mwifiex_init_priv_params(priv, dev);
2168         priv->netdev = dev;
2169
2170         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2171         if (adapter->is_hw_11ac_capable)
2172                 mwifiex_setup_vht_caps(
2173                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2174
2175         if (adapter->config_bands & BAND_A)
2176                 mwifiex_setup_ht_caps(
2177                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2178
2179         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2180                 mwifiex_setup_vht_caps(
2181                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2182
2183         dev_net_set(dev, wiphy_net(wiphy));
2184         dev->ieee80211_ptr = priv->wdev;
2185         dev->ieee80211_ptr->iftype = priv->bss_mode;
2186         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2187         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2188
2189         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2190         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2191         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2192         dev->ethtool_ops = &mwifiex_ethtool_ops;
2193
2194         mdev_priv = netdev_priv(dev);
2195         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2196
2197         SET_NETDEV_DEV(dev, adapter->dev);
2198
2199         /* Register network device */
2200         if (register_netdevice(dev)) {
2201                 wiphy_err(wiphy, "cannot register virtual network device\n");
2202                 free_netdev(dev);
2203                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2204                 return ERR_PTR(-EFAULT);
2205         }
2206
2207         sema_init(&priv->async_sem, 1);
2208
2209         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2210
2211 #ifdef CONFIG_DEBUG_FS
2212         mwifiex_dev_debugfs_init(priv);
2213 #endif
2214         return wdev;
2215 }
2216 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2217
2218 /*
2219  * del_virtual_intf: remove the virtual interface determined by dev
2220  */
2221 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2222 {
2223         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2224
2225 #ifdef CONFIG_DEBUG_FS
2226         mwifiex_dev_debugfs_remove(priv);
2227 #endif
2228
2229         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2230
2231         if (netif_carrier_ok(priv->netdev))
2232                 netif_carrier_off(priv->netdev);
2233
2234         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2235                 unregister_netdevice(wdev->netdev);
2236
2237         /* Clear the priv in adapter */
2238         priv->netdev = NULL;
2239
2240         priv->media_connected = false;
2241
2242         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2243
2244         return 0;
2245 }
2246 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2247
2248 #ifdef CONFIG_PM
2249 static bool
2250 mwifiex_is_pattern_supported(struct cfg80211_wowlan_trig_pkt_pattern *pat,
2251                              s8 *byte_seq)
2252 {
2253         int j, k, valid_byte_cnt = 0;
2254         bool dont_care_byte = false;
2255
2256         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2257                 for (k = 0; k < 8; k++) {
2258                         if (pat->mask[j] & 1 << k) {
2259                                 memcpy(byte_seq + valid_byte_cnt,
2260                                        &pat->pattern[j * 8 + k], 1);
2261                                 valid_byte_cnt++;
2262                                 if (dont_care_byte)
2263                                         return false;
2264                         } else {
2265                                 if (valid_byte_cnt)
2266                                         dont_care_byte = true;
2267                         }
2268
2269                         if (valid_byte_cnt > MAX_BYTESEQ)
2270                                 return false;
2271                 }
2272         }
2273
2274         byte_seq[MAX_BYTESEQ] = valid_byte_cnt;
2275
2276         return true;
2277 }
2278
2279 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2280                                     struct cfg80211_wowlan *wowlan)
2281 {
2282         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2283         struct mwifiex_ds_mef_cfg mef_cfg;
2284         struct mwifiex_mef_entry *mef_entry;
2285         int i, filt_num = 0, ret;
2286         bool first_pat = true;
2287         u8 byte_seq[MAX_BYTESEQ + 1];
2288         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2289         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2290         struct mwifiex_private *priv =
2291                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2292
2293         if (!wowlan) {
2294                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2295                 return 0;
2296         }
2297
2298         if (!priv->media_connected) {
2299                 dev_warn(adapter->dev,
2300                          "Can not configure WOWLAN in disconnected state\n");
2301                 return 0;
2302         }
2303
2304         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2305         if (!mef_entry)
2306                 return -ENOMEM;
2307
2308         memset(&mef_cfg, 0, sizeof(mef_cfg));
2309         mef_cfg.num_entries = 1;
2310         mef_cfg.mef_entry = mef_entry;
2311         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2312         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2313
2314         for (i = 0; i < wowlan->n_patterns; i++) {
2315                 memset(byte_seq, 0, sizeof(byte_seq));
2316                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2317                                                   byte_seq)) {
2318                         wiphy_err(wiphy, "Pattern not supported\n");
2319                         kfree(mef_entry);
2320                         return -EOPNOTSUPP;
2321                 }
2322
2323                 if (!wowlan->patterns[i].pkt_offset) {
2324                         if (!(byte_seq[0] & 0x01) &&
2325                             (byte_seq[MAX_BYTESEQ] == 1)) {
2326                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2327                                 continue;
2328                         } else if (is_broadcast_ether_addr(byte_seq)) {
2329                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2330                                 continue;
2331                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2332                                     (byte_seq[MAX_BYTESEQ] == 2)) ||
2333                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2334                                     (byte_seq[MAX_BYTESEQ] == 3))) {
2335                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2336                                 continue;
2337                         }
2338                 }
2339
2340                 mef_entry->filter[filt_num].repeat = 1;
2341                 mef_entry->filter[filt_num].offset =
2342                                                 wowlan->patterns[i].pkt_offset;
2343                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2344                        sizeof(byte_seq));
2345                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2346
2347                 if (first_pat)
2348                         first_pat = false;
2349                 else
2350                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2351
2352                 filt_num++;
2353         }
2354
2355         if (wowlan->magic_pkt) {
2356                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2357                 mef_entry->filter[filt_num].repeat = 16;
2358                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2359                        ETH_ALEN);
2360                 mef_entry->filter[filt_num].byte_seq[MAX_BYTESEQ] = ETH_ALEN;
2361                 mef_entry->filter[filt_num].offset = 14;
2362                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2363                 if (filt_num)
2364                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2365         }
2366
2367         if (!mef_cfg.criteria)
2368                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2369                                    MWIFIEX_CRITERIA_UNICAST |
2370                                    MWIFIEX_CRITERIA_MULTICAST;
2371
2372         ret =  mwifiex_send_cmd_sync(priv, HostCmd_CMD_MEF_CFG,
2373                                      HostCmd_ACT_GEN_SET, 0,
2374                                      &mef_cfg);
2375
2376         kfree(mef_entry);
2377         return ret;
2378 }
2379
2380 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2381 {
2382         return 0;
2383 }
2384
2385 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2386                                        bool enabled)
2387 {
2388         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2389
2390         device_set_wakeup_enable(adapter->dev, enabled);
2391 }
2392 #endif
2393
2394 /* station cfg80211 operations */
2395 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2396         .add_virtual_intf = mwifiex_add_virtual_intf,
2397         .del_virtual_intf = mwifiex_del_virtual_intf,
2398         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2399         .scan = mwifiex_cfg80211_scan,
2400         .connect = mwifiex_cfg80211_connect,
2401         .disconnect = mwifiex_cfg80211_disconnect,
2402         .get_station = mwifiex_cfg80211_get_station,
2403         .dump_station = mwifiex_cfg80211_dump_station,
2404         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2405         .join_ibss = mwifiex_cfg80211_join_ibss,
2406         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2407         .add_key = mwifiex_cfg80211_add_key,
2408         .del_key = mwifiex_cfg80211_del_key,
2409         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2410         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2411         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2412         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2413         .set_default_key = mwifiex_cfg80211_set_default_key,
2414         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2415         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2416         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2417         .start_ap = mwifiex_cfg80211_start_ap,
2418         .stop_ap = mwifiex_cfg80211_stop_ap,
2419         .change_beacon = mwifiex_cfg80211_change_beacon,
2420         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2421         .set_antenna = mwifiex_cfg80211_set_antenna,
2422 #ifdef CONFIG_PM
2423         .suspend = mwifiex_cfg80211_suspend,
2424         .resume = mwifiex_cfg80211_resume,
2425         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2426 #endif
2427 };
2428
2429 /*
2430  * This function registers the device with CFG802.11 subsystem.
2431  *
2432  * The function creates the wireless device/wiphy, populates it with
2433  * default parameters and handler function pointers, and finally
2434  * registers the device.
2435  */
2436
2437 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2438 {
2439         int ret;
2440         void *wdev_priv;
2441         struct wiphy *wiphy;
2442         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2443         u8 *country_code;
2444
2445         /* create a new wiphy for use with cfg80211 */
2446         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2447                           sizeof(struct mwifiex_adapter *));
2448         if (!wiphy) {
2449                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2450                 return -ENOMEM;
2451         }
2452         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2453         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2454         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2455         wiphy->max_remain_on_channel_duration = 5000;
2456         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2457                                  BIT(NL80211_IFTYPE_ADHOC) |
2458                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2459                                  BIT(NL80211_IFTYPE_P2P_GO) |
2460                                  BIT(NL80211_IFTYPE_AP);
2461
2462         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2463         if (adapter->config_bands & BAND_A)
2464                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2465         else
2466                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2467
2468         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2469         wiphy->n_iface_combinations = 1;
2470
2471         /* Initialize cipher suits */
2472         wiphy->cipher_suites = mwifiex_cipher_suites;
2473         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2474
2475         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2476         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2477         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2478                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2479                         WIPHY_FLAG_AP_UAPSD |
2480                         WIPHY_FLAG_CUSTOM_REGULATORY |
2481                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2482
2483         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2484
2485 #ifdef CONFIG_PM
2486         wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
2487         wiphy->wowlan.n_patterns = MWIFIEX_MAX_FILTERS;
2488         wiphy->wowlan.pattern_min_len = 1;
2489         wiphy->wowlan.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN;
2490         wiphy->wowlan.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN;
2491 #endif
2492
2493         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2494                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2495                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2496
2497         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2498         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2499
2500         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2501                            NL80211_FEATURE_INACTIVITY_TIMER |
2502                            NL80211_FEATURE_LOW_PRIORITY_SCAN;
2503
2504         /* Reserve space for mwifiex specific private data for BSS */
2505         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2506
2507         wiphy->reg_notifier = mwifiex_reg_notifier;
2508
2509         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2510         wdev_priv = wiphy_priv(wiphy);
2511         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2512
2513         set_wiphy_dev(wiphy, priv->adapter->dev);
2514
2515         ret = wiphy_register(wiphy);
2516         if (ret < 0) {
2517                 dev_err(adapter->dev,
2518                         "%s: wiphy_register failed: %d\n", __func__, ret);
2519                 wiphy_free(wiphy);
2520                 return ret;
2521         }
2522         country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
2523         if (country_code)
2524                 dev_info(adapter->dev,
2525                          "ignoring F/W country code %2.2s\n", country_code);
2526
2527         adapter->wiphy = wiphy;
2528         return ret;
2529 }