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 char *reg_alpha2;
  24 module_param(reg_alpha2, charp, 0);
  25
  26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  27         {
  28                 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
  29                                    BIT(NL80211_IFTYPE_P2P_GO) |
  30                                    BIT(NL80211_IFTYPE_P2P_CLIENT),
  31         },
  32         {
  33                 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
  38         .limits = mwifiex_ap_sta_limits,
  39         .num_different_channels = 1,
  40         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  41         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  42         .beacon_int_infra_match = true,
  43 };
  44
  45 static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
  46         .n_reg_rules = 7,
  47         .alpha2 =  "99",
  48         .reg_rules = {
  49                 /* Channel 1 - 11 */
  50                 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
  51                 /* Channel 12 - 13 */
  52                 REG_RULE(2467-10, 2472+10, 20, 3, 20,
  53                          NL80211_RRF_NO_IR),
  54                 /* Channel 14 */
  55                 REG_RULE(2484-10, 2484+10, 20, 3, 20,
  56                          NL80211_RRF_NO_IR |
  57                          NL80211_RRF_NO_OFDM),
  58                 /* Channel 36 - 48 */
  59                 REG_RULE(5180-10, 5240+10, 40, 3, 20,
  60                          NL80211_RRF_NO_IR),
  61                 /* Channel 149 - 165 */
  62                 REG_RULE(5745-10, 5825+10, 40, 3, 20,
  63                          NL80211_RRF_NO_IR),
  64                 /* Channel 52 - 64 */
  65                 REG_RULE(5260-10, 5320+10, 40, 3, 30,
  66                          NL80211_RRF_NO_IR |
  67                          NL80211_RRF_DFS),
  68                 /* Channel 100 - 140 */
  69                 REG_RULE(5500-10, 5700+10, 40, 3, 30,
  70                          NL80211_RRF_NO_IR |
  71                          NL80211_RRF_DFS),
  72         }
  73 };
  74
  75 /*
  76  * This function maps the nl802.11 channel type into driver channel type.
  77  *
  78  * The mapping is as follows -
  79  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  81  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  82  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  83  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  84  */
  85 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  86 {
  87         switch (chan_type) {
  88         case NL80211_CHAN_NO_HT:
  89         case NL80211_CHAN_HT20:
  90                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  91         case NL80211_CHAN_HT40PLUS:
  92                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  93         case NL80211_CHAN_HT40MINUS:
  94                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  95         default:
  96                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  97         }
  98 }
  99
 100 /*
 101  * This function checks whether WEP is set.
 102  */
 103 static int
 104 mwifiex_is_alg_wep(u32 cipher)
 105 {
 106         switch (cipher) {
 107         case WLAN_CIPHER_SUITE_WEP40:
 108         case WLAN_CIPHER_SUITE_WEP104:
 109                 return 1;
 110         default:
 111                 break;
 112         }
 113
 114         return 0;
 115 }
 116
 117 /*
 118  * This function retrieves the private structure from kernel wiphy structure.
 119  */
 120 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 121 {
 122         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 123 }
 124
 125 /*
 126  * CFG802.11 operation handler to delete a network key.
 127  */
 128 static int
 129 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 130                          u8 key_index, bool pairwise, const u8 *mac_addr)
 131 {
 132         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 133         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 134         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 135
 136         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 137                 wiphy_err(wiphy, "deleting the crypto keys\n");
 138                 return -EFAULT;
 139         }
 140
 141         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 142         return 0;
 143 }
 144
 145 /*
 146  * This function forms an skb for management frame.
 147  */
 148 static int
 149 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 150 {
 151         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 152         u16 pkt_len;
 153         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 154         struct timeval tv;
 155
 156         pkt_len = len + ETH_ALEN;
 157
 158         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 159                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 160         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 161
 162         memcpy(skb_push(skb, sizeof(tx_control)),
 163                &tx_control, sizeof(tx_control));
 164
 165         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 166
 167         /* Add packet data and address4 */
 168         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 169                sizeof(struct ieee80211_hdr_3addr));
 170         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 171         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 172                buf + sizeof(struct ieee80211_hdr_3addr),
 173                len - sizeof(struct ieee80211_hdr_3addr));
 174
 175         skb->priority = LOW_PRIO_TID;
 176         do_gettimeofday(&tv);
 177         skb->tstamp = timeval_to_ktime(tv);
 178
 179         return 0;
 180 }
 181
 182 /*
 183  * CFG802.11 operation handler to transmit a management frame.
 184  */
 185 static int
 186 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 187                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 188 {
 189         const u8 *buf = params->buf;
 190         size_t len = params->len;
 191         struct sk_buff *skb;
 192         u16 pkt_len;
 193         const struct ieee80211_mgmt *mgmt;
 194         struct mwifiex_txinfo *tx_info;
 195         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 196
 197         if (!buf || !len) {
 198                 wiphy_err(wiphy, "invalid buffer and length\n");
 199                 return -EFAULT;
 200         }
 201
 202         mgmt = (const struct ieee80211_mgmt *)buf;
 203         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 204             ieee80211_is_probe_resp(mgmt->frame_control)) {
 205                 /* Since we support offload probe resp, we need to skip probe
 206                  * resp in AP or GO mode */
 207                 wiphy_dbg(wiphy,
 208                           "info: skip to send probe resp in AP or GO mode\n");
 209                 return 0;
 210         }
 211
 212         pkt_len = len + ETH_ALEN;
 213         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 214                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 215                             pkt_len + sizeof(pkt_len));
 216
 217         if (!skb) {
 218                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 219                 return -ENOMEM;
 220         }
 221
 222         tx_info = MWIFIEX_SKB_TXCB(skb);
 223         memset(tx_info, 0, sizeof(*tx_info));
 224         tx_info->bss_num = priv->bss_num;
 225         tx_info->bss_type = priv->bss_type;
 226         tx_info->pkt_len = pkt_len;
 227
 228         mwifiex_form_mgmt_frame(skb, buf, len);
 229         mwifiex_queue_tx_pkt(priv, skb);
 230
 231         *cookie = prandom_u32() | 1;
 232         cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
 233
 234         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 235         return 0;
 236 }
 237
 238 /*
 239  * CFG802.11 operation handler to register a mgmt frame.
 240  */
 241 static void
 242 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 243                                      struct wireless_dev *wdev,
 244                                      u16 frame_type, bool reg)
 245 {
 246         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 247         u32 mask;
 248
 249         if (reg)
 250                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 251         else
 252                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 253
 254         if (mask != priv->mgmt_frame_mask) {
 255                 priv->mgmt_frame_mask = mask;
 256                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 257                                  HostCmd_ACT_GEN_SET, 0,
 258                                  &priv->mgmt_frame_mask, false);
 259                 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 260         }
 261 }
 262
 263 /*
 264  * CFG802.11 operation handler to remain on channel.
 265  */
 266 static int
 267 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 268                                    struct wireless_dev *wdev,
 269                                    struct ieee80211_channel *chan,
 270                                    unsigned int duration, u64 *cookie)
 271 {
 272         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 273         int ret;
 274
 275         if (!chan || !cookie) {
 276                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 277                 return -EINVAL;
 278         }
 279
 280         if (priv->roc_cfg.cookie) {
 281                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
 282                           priv->roc_cfg.cookie);
 283                 return -EBUSY;
 284         }
 285
 286         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 287                                          duration);
 288
 289         if (!ret) {
 290                 *cookie = prandom_u32() | 1;
 291                 priv->roc_cfg.cookie = *cookie;
 292                 priv->roc_cfg.chan = *chan;
 293
 294                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 295                                           duration, GFP_ATOMIC);
 296
 297                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 298         }
 299
 300         return ret;
 301 }
 302
 303 /*
 304  * CFG802.11 operation handler to cancel remain on channel.
 305  */
 306 static int
 307 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 308                                           struct wireless_dev *wdev, u64 cookie)
 309 {
 310         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 311         int ret;
 312
 313         if (cookie != priv->roc_cfg.cookie)
 314                 return -ENOENT;
 315
 316         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 317                                          &priv->roc_cfg.chan, 0);
 318
 319         if (!ret) {
 320                 cfg80211_remain_on_channel_expired(wdev, cookie,
 321                                                    &priv->roc_cfg.chan,
 322                                                    GFP_ATOMIC);
 323
 324                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 325
 326                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 327         }
 328
 329         return ret;
 330 }
 331
 332 /*
 333  * CFG802.11 operation handler to set Tx power.
 334  */
 335 static int
 336 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 337                               struct wireless_dev *wdev,
 338                               enum nl80211_tx_power_setting type,
 339                               int mbm)
 340 {
 341         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 342         struct mwifiex_private *priv;
 343         struct mwifiex_power_cfg power_cfg;
 344         int dbm = MBM_TO_DBM(mbm);
 345
 346         switch (type) {
 347         case NL80211_TX_POWER_FIXED:
 348                 power_cfg.is_power_auto = 0;
 349                 power_cfg.is_power_fixed = 1;
 350                 power_cfg.power_level = dbm;
 351                 break;
 352         case NL80211_TX_POWER_LIMITED:
 353                 power_cfg.is_power_auto = 0;
 354                 power_cfg.is_power_fixed = 0;
 355                 power_cfg.power_level = dbm;
 356                 break;
 357         case NL80211_TX_POWER_AUTOMATIC:
 358                 power_cfg.is_power_auto = 1;
 359                 break;
 360         }
 361
 362         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 363
 364         return mwifiex_set_tx_power(priv, &power_cfg);
 365 }
 366
 367 /*
 368  * CFG802.11 operation handler to set Power Save option.
 369  *
 370  * The timeout value, if provided, is currently ignored.
 371  */
 372 static int
 373 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 374                                 struct net_device *dev,
 375                                 bool enabled, int timeout)
 376 {
 377         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 378         u32 ps_mode;
 379
 380         if (timeout)
 381                 wiphy_dbg(wiphy,
 382                           "info: ignore timeout value for IEEE Power Save\n");
 383
 384         ps_mode = enabled;
 385
 386         return mwifiex_drv_set_power(priv, &ps_mode);
 387 }
 388
 389 /*
 390  * CFG802.11 operation handler to set the default network key.
 391  */
 392 static int
 393 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 394                                  u8 key_index, bool unicast,
 395                                  bool multicast)
 396 {
 397         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 398
 399         /* Return if WEP key not configured */
 400         if (!priv->sec_info.wep_enabled)
 401                 return 0;
 402
 403         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 404                 priv->wep_key_curr_index = key_index;
 405         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 406                                       NULL, 0)) {
 407                 wiphy_err(wiphy, "set default Tx key index\n");
 408                 return -EFAULT;
 409         }
 410
 411         return 0;
 412 }
 413
 414 /*
 415  * CFG802.11 operation handler to add a network key.
 416  */
 417 static int
 418 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 419                          u8 key_index, bool pairwise, const u8 *mac_addr,
 420                          struct key_params *params)
 421 {
 422         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 423         struct mwifiex_wep_key *wep_key;
 424         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 425         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 426
 427         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 428             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 429              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 430                 if (params->key && params->key_len) {
 431                         wep_key = &priv->wep_key[key_index];
 432                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 433                         memcpy(wep_key->key_material, params->key,
 434                                params->key_len);
 435                         wep_key->key_index = key_index;
 436                         wep_key->key_length = params->key_len;
 437                         priv->sec_info.wep_enabled = 1;
 438                 }
 439                 return 0;
 440         }
 441
 442         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 443                                key_index, peer_mac, 0)) {
 444                 wiphy_err(wiphy, "crypto keys added\n");
 445                 return -EFAULT;
 446         }
 447
 448         return 0;
 449 }
 450
 451 /*
 452  * This function sends domain information to the firmware.
 453  *
 454  * The following information are passed to the firmware -
 455  *      - Country codes
 456  *      - Sub bands (first channel, number of channels, maximum Tx power)
 457  */
 458 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 459 {
 460         u8 no_of_triplet = 0;
 461         struct ieee80211_country_ie_triplet *t;
 462         u8 no_of_parsed_chan = 0;
 463         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 464         u8 i, flag = 0;
 465         enum ieee80211_band band;
 466         struct ieee80211_supported_band *sband;
 467         struct ieee80211_channel *ch;
 468         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 469         struct mwifiex_private *priv;
 470         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 471
 472         /* Set country code */
 473         domain_info->country_code[0] = adapter->country_code[0];
 474         domain_info->country_code[1] = adapter->country_code[1];
 475         domain_info->country_code[2] = ' ';
 476
 477         band = mwifiex_band_to_radio_type(adapter->config_bands);
 478         if (!wiphy->bands[band]) {
 479                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 480                 return -1;
 481         }
 482
 483         sband = wiphy->bands[band];
 484
 485         for (i = 0; i < sband->n_channels ; i++) {
 486                 ch = &sband->channels[i];
 487                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 488                         continue;
 489
 490                 if (!flag) {
 491                         flag = 1;
 492                         first_chan = (u32) ch->hw_value;
 493                         next_chan = first_chan;
 494                         max_pwr = ch->max_power;
 495                         no_of_parsed_chan = 1;
 496                         continue;
 497                 }
 498
 499                 if (ch->hw_value == next_chan + 1 &&
 500                     ch->max_power == max_pwr) {
 501                         next_chan++;
 502                         no_of_parsed_chan++;
 503                 } else {
 504                         t = &domain_info->triplet[no_of_triplet];
 505                         t->chans.first_channel = first_chan;
 506                         t->chans.num_channels = no_of_parsed_chan;
 507                         t->chans.max_power = max_pwr;
 508                         no_of_triplet++;
 509                         first_chan = (u32) ch->hw_value;
 510                         next_chan = first_chan;
 511                         max_pwr = ch->max_power;
 512                         no_of_parsed_chan = 1;
 513                 }
 514         }
 515
 516         if (flag) {
 517                 t = &domain_info->triplet[no_of_triplet];
 518                 t->chans.first_channel = first_chan;
 519                 t->chans.num_channels = no_of_parsed_chan;
 520                 t->chans.max_power = max_pwr;
 521                 no_of_triplet++;
 522         }
 523
 524         domain_info->no_of_triplet = no_of_triplet;
 525
 526         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 527
 528         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 529                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 530                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 531                 return -1;
 532         }
 533
 534         return 0;
 535 }
 536
 537 /*
 538  * CFG802.11 regulatory domain callback function.
 539  *
 540  * This function is called when the regulatory domain is changed due to the
 541  * following reasons -
 542  *      - Set by driver
 543  *      - Set by system core
 544  *      - Set by user
 545  *      - Set bt Country IE
 546  */
 547 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 548                                  struct regulatory_request *request)
 549 {
 550         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 551         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 552                                                         MWIFIEX_BSS_ROLE_ANY);
 553
 554         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 555                   request->alpha2[0], request->alpha2[1]);
 556
 557         switch (request->initiator) {
 558         case NL80211_REGDOM_SET_BY_DRIVER:
 559         case NL80211_REGDOM_SET_BY_CORE:
 560         case NL80211_REGDOM_SET_BY_USER:
 561         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 562                 break;
 563         default:
 564                 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
 565                           request->initiator);
 566                 return;
 567         }
 568
 569         /* Don't send world or same regdom info to firmware */
 570         if (strncmp(request->alpha2, "00", 2) &&
 571             strncmp(request->alpha2, adapter->country_code,
 572                     sizeof(request->alpha2))) {
 573                 memcpy(adapter->country_code, request->alpha2,
 574                        sizeof(request->alpha2));
 575                 mwifiex_send_domain_info_cmd_fw(wiphy);
 576                 mwifiex_dnld_txpwr_table(priv);
 577         }
 578 }
 579
 580 /*
 581  * This function sets the fragmentation threshold.
 582  *
 583  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 584  * and MWIFIEX_FRAG_MAX_VALUE.
 585  */
 586 static int
 587 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 588 {
 589         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 590             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 591                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 592
 593         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 594                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 595                                 &frag_thr, true);
 596 }
 597
 598 /*
 599  * This function sets the RTS threshold.
 600
 601  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 602  * and MWIFIEX_RTS_MAX_VALUE.
 603  */
 604 static int
 605 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 606 {
 607         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 608                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 609
 610         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 611                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 612                                 &rts_thr, true);
 613 }
 614
 615 /*
 616  * CFG802.11 operation handler to set wiphy parameters.
 617  *
 618  * This function can be used to set the RTS threshold and the
 619  * Fragmentation threshold of the driver.
 620  */
 621 static int
 622 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 623 {
 624         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 625         struct mwifiex_private *priv;
 626         struct mwifiex_uap_bss_param *bss_cfg;
 627         int ret, bss_started, i;
 628
 629         for (i = 0; i < adapter->priv_num; i++) {
 630                 priv = adapter->priv[i];
 631
 632                 switch (priv->bss_role) {
 633                 case MWIFIEX_BSS_ROLE_UAP:
 634                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 635                                           GFP_KERNEL);
 636                         if (!bss_cfg)
 637                                 return -ENOMEM;
 638
 639                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 640
 641                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 642                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 643                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 644                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 645                         if (changed & WIPHY_PARAM_RETRY_LONG)
 646                                 bss_cfg->retry_limit = wiphy->retry_long;
 647
 648                         bss_started = priv->bss_started;
 649
 650                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
 651                                                HostCmd_ACT_GEN_SET, 0,
 652                                                NULL, true);
 653                         if (ret) {
 654                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 655                                 kfree(bss_cfg);
 656                                 return ret;
 657                         }
 658
 659                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 660                                                HostCmd_ACT_GEN_SET,
 661                                                UAP_BSS_PARAMS_I, bss_cfg,
 662                                                false);
 663
 664                         kfree(bss_cfg);
 665
 666                         if (ret) {
 667                                 wiphy_err(wiphy, "Failed to set bss config\n");
 668                                 return ret;
 669                         }
 670
 671                         if (!bss_started)
 672                                 break;
 673
 674                         ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
 675                                                HostCmd_ACT_GEN_SET, 0,
 676                                                NULL, false);
 677                         if (ret) {
 678                                 wiphy_err(wiphy, "Failed to start BSS\n");
 679                                 return ret;
 680                         }
 681
 682                         break;
 683                 case MWIFIEX_BSS_ROLE_STA:
 684                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 685                                 ret = mwifiex_set_rts(priv,
 686                                                       wiphy->rts_threshold);
 687                                 if (ret)
 688                                         return ret;
 689                         }
 690                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 691                                 ret = mwifiex_set_frag(priv,
 692                                                        wiphy->frag_threshold);
 693                                 if (ret)
 694                                         return ret;
 695                         }
 696                         break;
 697                 }
 698         }
 699
 700         return 0;
 701 }
 702
 703 static int
 704 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 705 {
 706         u16 mode = P2P_MODE_DISABLE;
 707
 708         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 709                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 710
 711         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 712                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 713                 return -1;
 714
 715         return 0;
 716 }
 717
 718 /*
 719  * This function initializes the functionalities for P2P client.
 720  * The P2P client initialization sequence is:
 721  * disable -> device -> client
 722  */
 723 static int
 724 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 725 {
 726         u16 mode;
 727
 728         if (mwifiex_cfg80211_deinit_p2p(priv))
 729                 return -1;
 730
 731         mode = P2P_MODE_DEVICE;
 732         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 733                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 734                 return -1;
 735
 736         mode = P2P_MODE_CLIENT;
 737         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 738                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 739                 return -1;
 740
 741         return 0;
 742 }
 743
 744 /*
 745  * This function initializes the functionalities for P2P GO.
 746  * The P2P GO initialization sequence is:
 747  * disable -> device -> GO
 748  */
 749 static int
 750 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 751 {
 752         u16 mode;
 753
 754         if (mwifiex_cfg80211_deinit_p2p(priv))
 755                 return -1;
 756
 757         mode = P2P_MODE_DEVICE;
 758         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 759                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 760                 return -1;
 761
 762         mode = P2P_MODE_GO;
 763         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 764                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 765                 return -1;
 766
 767         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 768                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 769
 770         return 0;
 771 }
 772
 773 /*
 774  * CFG802.11 operation handler to change interface type.
 775  */
 776 static int
 777 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 778                                      struct net_device *dev,
 779                                      enum nl80211_iftype type, u32 *flags,
 780                                      struct vif_params *params)
 781 {
 782         int ret;
 783         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 784
 785         switch (dev->ieee80211_ptr->iftype) {
 786         case NL80211_IFTYPE_ADHOC:
 787                 switch (type) {
 788                 case NL80211_IFTYPE_STATION:
 789                         break;
 790                 case NL80211_IFTYPE_UNSPECIFIED:
 791                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 792                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 793                         return 0;
 794                 case NL80211_IFTYPE_AP:
 795                 default:
 796                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 797                                   dev->name, type);
 798                         return -EOPNOTSUPP;
 799                 }
 800                 break;
 801         case NL80211_IFTYPE_STATION:
 802                 switch (type) {
 803                 case NL80211_IFTYPE_ADHOC:
 804                         break;
 805                 case NL80211_IFTYPE_P2P_CLIENT:
 806                         if (mwifiex_cfg80211_init_p2p_client(priv))
 807                                 return -EFAULT;
 808                         dev->ieee80211_ptr->iftype = type;
 809                         return 0;
 810                 case NL80211_IFTYPE_P2P_GO:
 811                         if (mwifiex_cfg80211_init_p2p_go(priv))
 812                                 return -EFAULT;
 813                         dev->ieee80211_ptr->iftype = type;
 814                         return 0;
 815                 case NL80211_IFTYPE_UNSPECIFIED:
 816                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 817                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 818                         return 0;
 819                 case NL80211_IFTYPE_AP:
 820                 default:
 821                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 822                                   dev->name, type);
 823                         return -EOPNOTSUPP;
 824                 }
 825                 break;
 826         case NL80211_IFTYPE_AP:
 827                 switch (type) {
 828                 case NL80211_IFTYPE_UNSPECIFIED:
 829                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 830                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 831                         return 0;
 832                 case NL80211_IFTYPE_ADHOC:
 833                 case NL80211_IFTYPE_STATION:
 834                 default:
 835                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 836                                   dev->name, type);
 837                         return -EOPNOTSUPP;
 838                 }
 839                 break;
 840         case NL80211_IFTYPE_P2P_CLIENT:
 841         case NL80211_IFTYPE_P2P_GO:
 842                 switch (type) {
 843                 case NL80211_IFTYPE_STATION:
 844                         if (mwifiex_cfg80211_deinit_p2p(priv))
 845                                 return -EFAULT;
 846                         dev->ieee80211_ptr->iftype = type;
 847                         return 0;
 848                 default:
 849                         return -EOPNOTSUPP;
 850                 }
 851                 break;
 852         default:
 853                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 854                           dev->name, dev->ieee80211_ptr->iftype);
 855                 return -EOPNOTSUPP;
 856         }
 857
 858         dev->ieee80211_ptr->iftype = type;
 859         priv->bss_mode = type;
 860         mwifiex_deauthenticate(priv, NULL);
 861
 862         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 863
 864         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 865                                HostCmd_ACT_GEN_SET, 0, NULL, true);
 866
 867         return ret;
 868 }
 869
 870 static void
 871 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 872                      struct rate_info *rate)
 873 {
 874         struct mwifiex_adapter *adapter = priv->adapter;
 875
 876         if (adapter->is_hw_11ac_capable) {
 877                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 878                 if (tx_htinfo & BIT(0)) {
 879                         /* HT */
 880                         rate->mcs = priv->tx_rate;
 881                         rate->flags |= RATE_INFO_FLAGS_MCS;
 882                 }
 883                 if (tx_htinfo & BIT(1)) {
 884                         /* VHT */
 885                         rate->mcs = priv->tx_rate & 0x0F;
 886                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 887                 }
 888
 889                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 890                         /* HT or VHT */
 891                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 892                         case 0:
 893                                 /* This will be 20MHz */
 894                                 break;
 895                         case (BIT(2)):
 896                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 897                                 break;
 898                         case (BIT(3)):
 899                                 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 900                                 break;
 901                         case (BIT(3) | BIT(2)):
 902                                 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 903                                 break;
 904                         }
 905
 906                         if (tx_htinfo & BIT(4))
 907                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 908
 909                         if ((priv->tx_rate >> 4) == 1)
 910                                 rate->nss = 2;
 911                         else
 912                                 rate->nss = 1;
 913                 }
 914         } else {
 915                 /*
 916                  * Bit 0 in tx_htinfo indicates that current Tx rate
 917                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 918                  */
 919                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 920                         rate->mcs = priv->tx_rate;
 921                         rate->flags |= RATE_INFO_FLAGS_MCS;
 922                         if (tx_htinfo & BIT(1))
 923                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 924                         if (tx_htinfo & BIT(2))
 925                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 926                 }
 927         }
 928 }
 929
 930 /*
 931  * This function dumps the station information on a buffer.
 932  *
 933  * The following information are shown -
 934  *      - Total bytes transmitted
 935  *      - Total bytes received
 936  *      - Total packets transmitted
 937  *      - Total packets received
 938  *      - Signal quality level
 939  *      - Transmission rate
 940  */
 941 static int
 942 mwifiex_dump_station_info(struct mwifiex_private *priv,
 943                           struct station_info *sinfo)
 944 {
 945         u32 rate;
 946
 947         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 948                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 949                         STATION_INFO_TX_BITRATE |
 950                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 951
 952         /* Get signal information from the firmware */
 953         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
 954                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
 955                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 956                 return -EFAULT;
 957         }
 958
 959         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 960                 dev_err(priv->adapter->dev, "getting data rate\n");
 961                 return -EFAULT;
 962         }
 963
 964         /* Get DTIM period information from firmware */
 965         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 966                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 967                          &priv->dtim_period, true);
 968
 969         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 970
 971         sinfo->signal_avg = priv->bcn_rssi_avg;
 972         sinfo->rx_bytes = priv->stats.rx_bytes;
 973         sinfo->tx_bytes = priv->stats.tx_bytes;
 974         sinfo->rx_packets = priv->stats.rx_packets;
 975         sinfo->tx_packets = priv->stats.tx_packets;
 976         sinfo->signal = priv->bcn_rssi_avg;
 977         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 978         sinfo->txrate.legacy = rate * 5;
 979
 980         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 981                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 982                 sinfo->bss_param.flags = 0;
 983                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 984                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 985                         sinfo->bss_param.flags |=
 986                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 987                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 988                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 989                         sinfo->bss_param.flags |=
 990                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 991                 sinfo->bss_param.dtim_period = priv->dtim_period;
 992                 sinfo->bss_param.beacon_interval =
 993                         priv->curr_bss_params.bss_descriptor.beacon_period;
 994         }
 995
 996         return 0;
 997 }
 998
 999 /*
1000  * CFG802.11 operation handler to get station information.
1001  *
1002  * This function only works in connected mode, and dumps the
1003  * requested station information, if available.
1004  */
1005 static int
1006 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1007                              const u8 *mac, struct station_info *sinfo)
1008 {
1009         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1010
1011         if (!priv->media_connected)
1012                 return -ENOENT;
1013         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1014                 return -ENOENT;
1015
1016         return mwifiex_dump_station_info(priv, sinfo);
1017 }
1018
1019 /*
1020  * CFG802.11 operation handler to dump station information.
1021  */
1022 static int
1023 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1024                               int idx, u8 *mac, struct station_info *sinfo)
1025 {
1026         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1027
1028         if (!priv->media_connected || idx)
1029                 return -ENOENT;
1030
1031         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1032
1033         return mwifiex_dump_station_info(priv, sinfo);
1034 }
1035
1036 /* Supported rates to be advertised to the cfg80211 */
1037 static struct ieee80211_rate mwifiex_rates[] = {
1038         {.bitrate = 10, .hw_value = 2, },
1039         {.bitrate = 20, .hw_value = 4, },
1040         {.bitrate = 55, .hw_value = 11, },
1041         {.bitrate = 110, .hw_value = 22, },
1042         {.bitrate = 60, .hw_value = 12, },
1043         {.bitrate = 90, .hw_value = 18, },
1044         {.bitrate = 120, .hw_value = 24, },
1045         {.bitrate = 180, .hw_value = 36, },
1046         {.bitrate = 240, .hw_value = 48, },
1047         {.bitrate = 360, .hw_value = 72, },
1048         {.bitrate = 480, .hw_value = 96, },
1049         {.bitrate = 540, .hw_value = 108, },
1050 };
1051
1052 /* Channel definitions to be advertised to cfg80211 */
1053 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1054         {.center_freq = 2412, .hw_value = 1, },
1055         {.center_freq = 2417, .hw_value = 2, },
1056         {.center_freq = 2422, .hw_value = 3, },
1057         {.center_freq = 2427, .hw_value = 4, },
1058         {.center_freq = 2432, .hw_value = 5, },
1059         {.center_freq = 2437, .hw_value = 6, },
1060         {.center_freq = 2442, .hw_value = 7, },
1061         {.center_freq = 2447, .hw_value = 8, },
1062         {.center_freq = 2452, .hw_value = 9, },
1063         {.center_freq = 2457, .hw_value = 10, },
1064         {.center_freq = 2462, .hw_value = 11, },
1065         {.center_freq = 2467, .hw_value = 12, },
1066         {.center_freq = 2472, .hw_value = 13, },
1067         {.center_freq = 2484, .hw_value = 14, },
1068 };
1069
1070 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1071         .channels = mwifiex_channels_2ghz,
1072         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1073         .bitrates = mwifiex_rates,
1074         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1075 };
1076
1077 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1078         {.center_freq = 5040, .hw_value = 8, },
1079         {.center_freq = 5060, .hw_value = 12, },
1080         {.center_freq = 5080, .hw_value = 16, },
1081         {.center_freq = 5170, .hw_value = 34, },
1082         {.center_freq = 5190, .hw_value = 38, },
1083         {.center_freq = 5210, .hw_value = 42, },
1084         {.center_freq = 5230, .hw_value = 46, },
1085         {.center_freq = 5180, .hw_value = 36, },
1086         {.center_freq = 5200, .hw_value = 40, },
1087         {.center_freq = 5220, .hw_value = 44, },
1088         {.center_freq = 5240, .hw_value = 48, },
1089         {.center_freq = 5260, .hw_value = 52, },
1090         {.center_freq = 5280, .hw_value = 56, },
1091         {.center_freq = 5300, .hw_value = 60, },
1092         {.center_freq = 5320, .hw_value = 64, },
1093         {.center_freq = 5500, .hw_value = 100, },
1094         {.center_freq = 5520, .hw_value = 104, },
1095         {.center_freq = 5540, .hw_value = 108, },
1096         {.center_freq = 5560, .hw_value = 112, },
1097         {.center_freq = 5580, .hw_value = 116, },
1098         {.center_freq = 5600, .hw_value = 120, },
1099         {.center_freq = 5620, .hw_value = 124, },
1100         {.center_freq = 5640, .hw_value = 128, },
1101         {.center_freq = 5660, .hw_value = 132, },
1102         {.center_freq = 5680, .hw_value = 136, },
1103         {.center_freq = 5700, .hw_value = 140, },
1104         {.center_freq = 5745, .hw_value = 149, },
1105         {.center_freq = 5765, .hw_value = 153, },
1106         {.center_freq = 5785, .hw_value = 157, },
1107         {.center_freq = 5805, .hw_value = 161, },
1108         {.center_freq = 5825, .hw_value = 165, },
1109 };
1110
1111 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1112         .channels = mwifiex_channels_5ghz,
1113         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1114         .bitrates = mwifiex_rates + 4,
1115         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1116 };
1117
1118
1119 /* Supported crypto cipher suits to be advertised to cfg80211 */
1120 static const u32 mwifiex_cipher_suites[] = {
1121         WLAN_CIPHER_SUITE_WEP40,
1122         WLAN_CIPHER_SUITE_WEP104,
1123         WLAN_CIPHER_SUITE_TKIP,
1124         WLAN_CIPHER_SUITE_CCMP,
1125         WLAN_CIPHER_SUITE_AES_CMAC,
1126 };
1127
1128 /* Supported mgmt frame types to be advertised to cfg80211 */
1129 static const struct ieee80211_txrx_stypes
1130 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1131         [NL80211_IFTYPE_STATION] = {
1132                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1133                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1134                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1135                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1136         },
1137         [NL80211_IFTYPE_AP] = {
1138                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1139                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1140                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1141                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1142         },
1143         [NL80211_IFTYPE_P2P_CLIENT] = {
1144                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1145                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1146                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1147                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1148         },
1149         [NL80211_IFTYPE_P2P_GO] = {
1150                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1151                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1152                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1153                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1154         },
1155 };
1156
1157 /*
1158  * CFG802.11 operation handler for setting bit rates.
1159  *
1160  * Function configures data rates to firmware using bitrate mask
1161  * provided by cfg80211.
1162  */
1163 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1164                                 struct net_device *dev,
1165                                 const u8 *peer,
1166                                 const struct cfg80211_bitrate_mask *mask)
1167 {
1168         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1169         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1170         enum ieee80211_band band;
1171         struct mwifiex_adapter *adapter = priv->adapter;
1172
1173         if (!priv->media_connected) {
1174                 dev_err(adapter->dev,
1175                         "Can not set Tx data rate in disconnected state\n");
1176                 return -EINVAL;
1177         }
1178
1179         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1180
1181         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1182
1183         /* Fill HR/DSSS rates. */
1184         if (band == IEEE80211_BAND_2GHZ)
1185                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1186
1187         /* Fill OFDM rates */
1188         if (band == IEEE80211_BAND_2GHZ)
1189                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1190         else
1191                 bitmap_rates[1] = mask->control[band].legacy;
1192
1193         /* Fill HT MCS rates */
1194         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1195         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1196                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1197
1198        /* Fill VHT MCS rates */
1199         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1200                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1201                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1202                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1203         }
1204
1205         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1206                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1207 }
1208
1209 /*
1210  * CFG802.11 operation handler for connection quality monitoring.
1211  *
1212  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1213  * events to FW.
1214  */
1215 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1216                                                 struct net_device *dev,
1217                                                 s32 rssi_thold, u32 rssi_hyst)
1218 {
1219         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1220         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1221
1222         priv->cqm_rssi_thold = rssi_thold;
1223         priv->cqm_rssi_hyst = rssi_hyst;
1224
1225         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1226         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1227
1228         /* Subscribe/unsubscribe low and high rssi events */
1229         if (rssi_thold && rssi_hyst) {
1230                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1231                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1232                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1233                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1234                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1235                 return mwifiex_send_cmd(priv,
1236                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1237                                         0, 0, &subsc_evt, true);
1238         } else {
1239                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1240                 return mwifiex_send_cmd(priv,
1241                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1242                                         0, 0, &subsc_evt, true);
1243         }
1244
1245         return 0;
1246 }
1247
1248 /* cfg80211 operation handler for change_beacon.
1249  * Function retrieves and sets modified management IEs to FW.
1250  */
1251 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1252                                           struct net_device *dev,
1253                                           struct cfg80211_beacon_data *data)
1254 {
1255         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1256
1257         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1258                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1259                 return -EINVAL;
1260         }
1261
1262         if (!priv->bss_started) {
1263                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1264                 return -EINVAL;
1265         }
1266
1267         if (mwifiex_set_mgmt_ies(priv, data)) {
1268                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1269                 return -EFAULT;
1270         }
1271
1272         return 0;
1273 }
1274
1275 /* cfg80211 operation handler for del_station.
1276  * Function deauthenticates station which value is provided in mac parameter.
1277  * If mac is NULL/broadcast, all stations in associated station list are
1278  * deauthenticated. If bss is not started or there are no stations in
1279  * associated stations list, no action is taken.
1280  */
1281 static int
1282 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1283                              const u8 *mac)
1284 {
1285         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1286         struct mwifiex_sta_node *sta_node;
1287         unsigned long flags;
1288
1289         if (list_empty(&priv->sta_list) || !priv->bss_started)
1290                 return 0;
1291
1292         if (!mac || is_broadcast_ether_addr(mac)) {
1293                 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1294                 list_for_each_entry(sta_node, &priv->sta_list, list) {
1295                         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1296                                              HostCmd_ACT_GEN_SET, 0,
1297                                              sta_node->mac_addr, true))
1298                                 return -1;
1299                         mwifiex_uap_del_sta_data(priv, sta_node);
1300                 }
1301         } else {
1302                 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
1303                 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1304                 sta_node = mwifiex_get_sta_entry(priv, mac);
1305                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1306                 if (sta_node) {
1307                         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1308                                              HostCmd_ACT_GEN_SET, 0,
1309                                              sta_node->mac_addr, true))
1310                                 return -1;
1311                         mwifiex_uap_del_sta_data(priv, sta_node);
1312                 }
1313         }
1314
1315         return 0;
1316 }
1317
1318 static int
1319 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1320 {
1321         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1322         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1323                                                         MWIFIEX_BSS_ROLE_ANY);
1324         struct mwifiex_ds_ant_cfg ant_cfg;
1325
1326         if (!tx_ant || !rx_ant)
1327                 return -EOPNOTSUPP;
1328
1329         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1330                 /* Not a MIMO chip. User should provide specific antenna number
1331                  * for Tx/Rx path or enable all antennas for diversity
1332                  */
1333                 if (tx_ant != rx_ant)
1334                         return -EOPNOTSUPP;
1335
1336                 if ((tx_ant & (tx_ant - 1)) &&
1337                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1338                         return -EOPNOTSUPP;
1339
1340                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1341                     (priv->adapter->number_of_antenna > 1)) {
1342                         tx_ant = RF_ANTENNA_AUTO;
1343                         rx_ant = RF_ANTENNA_AUTO;
1344                 }
1345         } else {
1346                 struct ieee80211_sta_ht_cap *ht_info;
1347                 int rx_mcs_supp;
1348                 enum ieee80211_band band;
1349
1350                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1351                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1352                         if (adapter->is_hw_11ac_capable)
1353                                 adapter->usr_dot_11ac_mcs_support =
1354                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1355                 } else {
1356                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1357                         if (adapter->is_hw_11ac_capable)
1358                                 adapter->usr_dot_11ac_mcs_support =
1359                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1360                 }
1361
1362                 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1363                         if (!adapter->wiphy->bands[band])
1364                                 continue;
1365
1366                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1367                         rx_mcs_supp =
1368                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1369                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1370                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1371                 }
1372         }
1373
1374         ant_cfg.tx_ant = tx_ant;
1375         ant_cfg.rx_ant = rx_ant;
1376
1377         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1378                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1379 }
1380
1381 /* cfg80211 operation handler for stop ap.
1382  * Function stops BSS running at uAP interface.
1383  */
1384 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1385 {
1386         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1387
1388         if (mwifiex_del_mgmt_ies(priv))
1389                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1390
1391         priv->ap_11n_enabled = 0;
1392
1393         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1394                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1395                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1396                 return -1;
1397         }
1398
1399         return 0;
1400 }
1401
1402 /* cfg80211 operation handler for start_ap.
1403  * Function sets beacon period, DTIM period, SSID and security into
1404  * AP config structure.
1405  * AP is configured with these settings and BSS is started.
1406  */
1407 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1408                                      struct net_device *dev,
1409                                      struct cfg80211_ap_settings *params)
1410 {
1411         struct mwifiex_uap_bss_param *bss_cfg;
1412         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1413         u8 config_bands = 0;
1414
1415         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1416                 return -1;
1417         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1418                 return -1;
1419
1420         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1421         if (!bss_cfg)
1422                 return -ENOMEM;
1423
1424         mwifiex_set_sys_config_invalid_data(bss_cfg);
1425
1426         if (params->beacon_interval)
1427                 bss_cfg->beacon_period = params->beacon_interval;
1428         if (params->dtim_period)
1429                 bss_cfg->dtim_period = params->dtim_period;
1430
1431         if (params->ssid && params->ssid_len) {
1432                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1433                 bss_cfg->ssid.ssid_len = params->ssid_len;
1434         }
1435
1436         switch (params->hidden_ssid) {
1437         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1438                 bss_cfg->bcast_ssid_ctl = 1;
1439                 break;
1440         case NL80211_HIDDEN_SSID_ZERO_LEN:
1441                 bss_cfg->bcast_ssid_ctl = 0;
1442                 break;
1443         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1444                 /* firmware doesn't support this type of hidden SSID */
1445         default:
1446                 kfree(bss_cfg);
1447                 return -EINVAL;
1448         }
1449
1450         bss_cfg->channel = ieee80211_frequency_to_channel(
1451                                 params->chandef.chan->center_freq);
1452
1453         /* Set appropriate bands */
1454         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1455                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1456                 config_bands = BAND_B | BAND_G;
1457
1458                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1459                         config_bands |= BAND_GN;
1460         } else {
1461                 bss_cfg->band_cfg = BAND_CONFIG_A;
1462                 config_bands = BAND_A;
1463
1464                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1465                         config_bands |= BAND_AN;
1466
1467                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1468                         config_bands |= BAND_AAC;
1469         }
1470
1471         if (!((config_bands | priv->adapter->fw_bands) &
1472               ~priv->adapter->fw_bands))
1473                 priv->adapter->config_bands = config_bands;
1474
1475         mwifiex_set_uap_rates(bss_cfg, params);
1476         mwifiex_send_domain_info_cmd_fw(wiphy);
1477
1478         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1479                 kfree(bss_cfg);
1480                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1481                 return -1;
1482         }
1483
1484         mwifiex_set_ht_params(priv, bss_cfg, params);
1485
1486         if (priv->adapter->is_hw_11ac_capable) {
1487                 mwifiex_set_vht_params(priv, bss_cfg, params);
1488                 mwifiex_set_vht_width(priv, params->chandef.width,
1489                                       priv->ap_11ac_enabled);
1490         }
1491
1492         if (priv->ap_11ac_enabled)
1493                 mwifiex_set_11ac_ba_params(priv);
1494         else
1495                 mwifiex_set_ba_params(priv);
1496
1497         mwifiex_set_wmm_params(priv, bss_cfg, params);
1498
1499         if (params->inactivity_timeout > 0) {
1500                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1501                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1502                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1503         }
1504
1505         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1506                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1507                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1508                 kfree(bss_cfg);
1509                 return -1;
1510         }
1511
1512         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1513                              HostCmd_ACT_GEN_SET,
1514                              UAP_BSS_PARAMS_I, bss_cfg, false)) {
1515                 wiphy_err(wiphy, "Failed to set the SSID\n");
1516                 kfree(bss_cfg);
1517                 return -1;
1518         }
1519
1520         kfree(bss_cfg);
1521
1522         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1523                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1524                 wiphy_err(wiphy, "Failed to start the BSS\n");
1525                 return -1;
1526         }
1527
1528         if (priv->sec_info.wep_enabled)
1529                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1530         else
1531                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1532
1533         if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1534                              HostCmd_ACT_GEN_SET, 0,
1535                              &priv->curr_pkt_filter, true))
1536                 return -1;
1537
1538         return 0;
1539 }
1540
1541 /*
1542  * CFG802.11 operation handler for disconnection request.
1543  *
1544  * This function does not work when there is already a disconnection
1545  * procedure going on.
1546  */
1547 static int
1548 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1549                             u16 reason_code)
1550 {
1551         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1552
1553         if (mwifiex_deauthenticate(priv, NULL))
1554                 return -EFAULT;
1555
1556         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1557                 " reason code %d\n", priv->cfg_bssid, reason_code);
1558
1559         memset(priv->cfg_bssid, 0, ETH_ALEN);
1560         priv->hs2_enabled = false;
1561
1562         return 0;
1563 }
1564
1565 /*
1566  * This function informs the CFG802.11 subsystem of a new IBSS.
1567  *
1568  * The following information are sent to the CFG802.11 subsystem
1569  * to register the new IBSS. If we do not register the new IBSS,
1570  * a kernel panic will result.
1571  *      - SSID
1572  *      - SSID length
1573  *      - BSSID
1574  *      - Channel
1575  */
1576 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1577 {
1578         struct ieee80211_channel *chan;
1579         struct mwifiex_bss_info bss_info;
1580         struct cfg80211_bss *bss;
1581         int ie_len;
1582         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1583         enum ieee80211_band band;
1584
1585         if (mwifiex_get_bss_info(priv, &bss_info))
1586                 return -1;
1587
1588         ie_buf[0] = WLAN_EID_SSID;
1589         ie_buf[1] = bss_info.ssid.ssid_len;
1590
1591         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1592                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1593         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1594
1595         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1596         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1597                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1598                                                        band));
1599
1600         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1601                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1602                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1603         cfg80211_put_bss(priv->wdev->wiphy, bss);
1604         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1605
1606         return 0;
1607 }
1608
1609 /*
1610  * This function connects with a BSS.
1611  *
1612  * This function handles both Infra and Ad-Hoc modes. It also performs
1613  * validity checking on the provided parameters, disconnects from the
1614  * current BSS (if any), sets up the association/scan parameters,
1615  * including security settings, and performs specific SSID scan before
1616  * trying to connect.
1617  *
1618  * For Infra mode, the function returns failure if the specified SSID
1619  * is not found in scan table. However, for Ad-Hoc mode, it can create
1620  * the IBSS if it does not exist. On successful completion in either case,
1621  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1622  */
1623 static int
1624 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1625                        const u8 *ssid, const u8 *bssid, int mode,
1626                        struct ieee80211_channel *channel,
1627                        struct cfg80211_connect_params *sme, bool privacy)
1628 {
1629         struct cfg80211_ssid req_ssid;
1630         int ret, auth_type = 0;
1631         struct cfg80211_bss *bss = NULL;
1632         u8 is_scanning_required = 0;
1633
1634         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1635
1636         req_ssid.ssid_len = ssid_len;
1637         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1638                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1639                 return -EINVAL;
1640         }
1641
1642         memcpy(req_ssid.ssid, ssid, ssid_len);
1643         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1644                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1645                 return -EINVAL;
1646         }
1647
1648         /* disconnect before try to associate */
1649         mwifiex_deauthenticate(priv, NULL);
1650
1651         /* As this is new association, clear locally stored
1652          * keys and security related flags */
1653         priv->sec_info.wpa_enabled = false;
1654         priv->sec_info.wpa2_enabled = false;
1655         priv->wep_key_curr_index = 0;
1656         priv->sec_info.encryption_mode = 0;
1657         priv->sec_info.is_authtype_auto = 0;
1658         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1659
1660         if (mode == NL80211_IFTYPE_ADHOC) {
1661                 /* "privacy" is set only for ad-hoc mode */
1662                 if (privacy) {
1663                         /*
1664                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1665                          * the firmware can find a matching network from the
1666                          * scan. The cfg80211 does not give us the encryption
1667                          * mode at this stage so just setting it to WEP here.
1668                          */
1669                         priv->sec_info.encryption_mode =
1670                                         WLAN_CIPHER_SUITE_WEP104;
1671                         priv->sec_info.authentication_mode =
1672                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1673                 }
1674
1675                 goto done;
1676         }
1677
1678         /* Now handle infra mode. "sme" is valid for infra mode only */
1679         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1680                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1681                 priv->sec_info.is_authtype_auto = 1;
1682         } else {
1683                 auth_type = sme->auth_type;
1684         }
1685
1686         if (sme->crypto.n_ciphers_pairwise) {
1687                 priv->sec_info.encryption_mode =
1688                                                 sme->crypto.ciphers_pairwise[0];
1689                 priv->sec_info.authentication_mode = auth_type;
1690         }
1691
1692         if (sme->crypto.cipher_group) {
1693                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1694                 priv->sec_info.authentication_mode = auth_type;
1695         }
1696         if (sme->ie)
1697                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1698
1699         if (sme->key) {
1700                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1701                         dev_dbg(priv->adapter->dev,
1702                                 "info: setting wep encryption"
1703                                 " with key len %d\n", sme->key_len);
1704                         priv->wep_key_curr_index = sme->key_idx;
1705                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1706                                                  sme->key_len, sme->key_idx,
1707                                                  NULL, 0);
1708                 }
1709         }
1710 done:
1711         /*
1712          * Scan entries are valid for some time (15 sec). So we can save one
1713          * active scan time if we just try cfg80211_get_bss first. If it fails
1714          * then request scan and cfg80211_get_bss() again for final output.
1715          */
1716         while (1) {
1717                 if (is_scanning_required) {
1718                         /* Do specific SSID scanning */
1719                         if (mwifiex_request_scan(priv, &req_ssid)) {
1720                                 dev_err(priv->adapter->dev, "scan error\n");
1721                                 return -EFAULT;
1722                         }
1723                 }
1724
1725                 /* Find the BSS we want using available scan results */
1726                 if (mode == NL80211_IFTYPE_ADHOC)
1727                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1728                                                bssid, ssid, ssid_len,
1729                                                WLAN_CAPABILITY_IBSS,
1730                                                WLAN_CAPABILITY_IBSS);
1731                 else
1732                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1733                                                bssid, ssid, ssid_len,
1734                                                WLAN_CAPABILITY_ESS,
1735                                                WLAN_CAPABILITY_ESS);
1736
1737                 if (!bss) {
1738                         if (is_scanning_required) {
1739                                 dev_warn(priv->adapter->dev,
1740                                          "assoc: requested bss not found in scan results\n");
1741                                 break;
1742                         }
1743                         is_scanning_required = 1;
1744                 } else {
1745                         dev_dbg(priv->adapter->dev,
1746                                 "info: trying to associate to '%.*s' bssid %pM\n",
1747                                 req_ssid.ssid_len, (char *)req_ssid.ssid,
1748                                 bss->bssid);
1749                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1750                         break;
1751                 }
1752         }
1753
1754         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1755         if (ret)
1756                 return ret;
1757
1758         if (mode == NL80211_IFTYPE_ADHOC) {
1759                 /* Inform the BSS information to kernel, otherwise
1760                  * kernel will give a panic after successful assoc */
1761                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1762                         return -EFAULT;
1763         }
1764
1765         return ret;
1766 }
1767
1768 /*
1769  * CFG802.11 operation handler for association request.
1770  *
1771  * This function does not work when the current mode is set to Ad-Hoc, or
1772  * when there is already an association procedure going on. The given BSS
1773  * information is used to associate.
1774  */
1775 static int
1776 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1777                          struct cfg80211_connect_params *sme)
1778 {
1779         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1780         int ret;
1781
1782         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1783                 wiphy_err(wiphy,
1784                           "%s: reject infra assoc request in non-STA role\n",
1785                           dev->name);
1786                 return -EINVAL;
1787         }
1788
1789         wiphy_dbg(wiphy, "info: Trying to associate to %.*s and bssid %pM\n",
1790                   (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
1791
1792         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1793                                      priv->bss_mode, sme->channel, sme, 0);
1794         if (!ret) {
1795                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1796                                         NULL, 0, WLAN_STATUS_SUCCESS,
1797                                         GFP_KERNEL);
1798                 dev_dbg(priv->adapter->dev,
1799                         "info: associated to bssid %pM successfully\n",
1800                         priv->cfg_bssid);
1801         } else {
1802                 dev_dbg(priv->adapter->dev,
1803                         "info: association to bssid %pM failed\n",
1804                         priv->cfg_bssid);
1805                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1806
1807                 if (ret > 0)
1808                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1809                                                 NULL, 0, NULL, 0, ret,
1810                                                 GFP_KERNEL);
1811                 else
1812                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1813                                                 NULL, 0, NULL, 0,
1814                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1815                                                 GFP_KERNEL);
1816         }
1817
1818         return 0;
1819 }
1820
1821 /*
1822  * This function sets following parameters for ibss network.
1823  *  -  channel
1824  *  -  start band
1825  *  -  11n flag
1826  *  -  secondary channel offset
1827  */
1828 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1829                                    struct cfg80211_ibss_params *params)
1830 {
1831         struct wiphy *wiphy = priv->wdev->wiphy;
1832         struct mwifiex_adapter *adapter = priv->adapter;
1833         int index = 0, i;
1834         u8 config_bands = 0;
1835
1836         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1837                 if (!params->basic_rates) {
1838                         config_bands = BAND_B | BAND_G;
1839                 } else {
1840                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1841                                 /*
1842                                  * Rates below 6 Mbps in the table are CCK
1843                                  * rates; 802.11b and from 6 they are OFDM;
1844                                  * 802.11G
1845                                  */
1846                                 if (mwifiex_rates[i].bitrate == 60) {
1847                                         index = 1 << i;
1848                                         break;
1849                                 }
1850                         }
1851
1852                         if (params->basic_rates < index) {
1853                                 config_bands = BAND_B;
1854                         } else {
1855                                 config_bands = BAND_G;
1856                                 if (params->basic_rates % index)
1857                                         config_bands |= BAND_B;
1858                         }
1859                 }
1860
1861                 if (cfg80211_get_chandef_type(&params->chandef) !=
1862                                                 NL80211_CHAN_NO_HT)
1863                         config_bands |= BAND_G | BAND_GN;
1864         } else {
1865                 if (cfg80211_get_chandef_type(&params->chandef) ==
1866                                                 NL80211_CHAN_NO_HT)
1867                         config_bands = BAND_A;
1868                 else
1869                         config_bands = BAND_AN | BAND_A;
1870         }
1871
1872         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1873                 adapter->config_bands = config_bands;
1874                 adapter->adhoc_start_band = config_bands;
1875
1876                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1877                         adapter->adhoc_11n_enabled = true;
1878                 else
1879                         adapter->adhoc_11n_enabled = false;
1880         }
1881
1882         adapter->sec_chan_offset =
1883                 mwifiex_chan_type_to_sec_chan_offset(
1884                         cfg80211_get_chandef_type(&params->chandef));
1885         priv->adhoc_channel = ieee80211_frequency_to_channel(
1886                                 params->chandef.chan->center_freq);
1887
1888         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1889                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1890
1891         return 0;
1892 }
1893
1894 /*
1895  * CFG802.11 operation handler to join an IBSS.
1896  *
1897  * This function does not work in any mode other than Ad-Hoc, or if
1898  * a join operation is already in progress.
1899  */
1900 static int
1901 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1902                            struct cfg80211_ibss_params *params)
1903 {
1904         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1905         int ret = 0;
1906
1907         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1908                 wiphy_err(wiphy, "request to join ibss received "
1909                                 "when station is not in ibss mode\n");
1910                 goto done;
1911         }
1912
1913         wiphy_dbg(wiphy, "info: trying to join to %.*s and bssid %pM\n",
1914                   params->ssid_len, (char *)params->ssid, params->bssid);
1915
1916         mwifiex_set_ibss_params(priv, params);
1917
1918         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1919                                      params->bssid, priv->bss_mode,
1920                                      params->chandef.chan, NULL,
1921                                      params->privacy);
1922 done:
1923         if (!ret) {
1924                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1925                                      params->chandef.chan, GFP_KERNEL);
1926                 dev_dbg(priv->adapter->dev,
1927                         "info: joined/created adhoc network with bssid"
1928                         " %pM successfully\n", priv->cfg_bssid);
1929         } else {
1930                 dev_dbg(priv->adapter->dev,
1931                         "info: failed creating/joining adhoc network\n");
1932         }
1933
1934         return ret;
1935 }
1936
1937 /*
1938  * CFG802.11 operation handler to leave an IBSS.
1939  *
1940  * This function does not work if a leave operation is
1941  * already in progress.
1942  */
1943 static int
1944 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1945 {
1946         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1947
1948         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1949                   priv->cfg_bssid);
1950         if (mwifiex_deauthenticate(priv, NULL))
1951                 return -EFAULT;
1952
1953         memset(priv->cfg_bssid, 0, ETH_ALEN);
1954
1955         return 0;
1956 }
1957
1958 /*
1959  * CFG802.11 operation handler for scan request.
1960  *
1961  * This function issues a scan request to the firmware based upon
1962  * the user specified scan configuration. On successfull completion,
1963  * it also informs the results.
1964  */
1965 static int
1966 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1967                       struct cfg80211_scan_request *request)
1968 {
1969         struct net_device *dev = request->wdev->netdev;
1970         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1971         int i, offset, ret;
1972         struct ieee80211_channel *chan;
1973         struct ieee_types_header *ie;
1974         struct mwifiex_user_scan_cfg *user_scan_cfg;
1975
1976         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1977
1978         if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1979             atomic_read(&priv->wmm.tx_pkts_queued) >=
1980             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1981                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1982                 return -EBUSY;
1983         }
1984
1985         /* Block scan request if scan operation or scan cleanup when interface
1986          * is disabled is in process
1987          */
1988         if (priv->scan_request || priv->scan_aborting) {
1989                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1990                 return -EBUSY;
1991         }
1992
1993         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1994         if (!user_scan_cfg)
1995                 return -ENOMEM;
1996
1997         priv->scan_request = request;
1998
1999         user_scan_cfg->num_ssids = request->n_ssids;
2000         user_scan_cfg->ssid_list = request->ssids;
2001
2002         if (request->ie && request->ie_len) {
2003                 offset = 0;
2004                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2005                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2006                                 continue;
2007                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2008                         ie = (struct ieee_types_header *)(request->ie + offset);
2009                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2010                         offset += sizeof(*ie) + ie->len;
2011
2012                         if (offset >= request->ie_len)
2013                                 break;
2014                 }
2015         }
2016
2017         for (i = 0; i < min_t(u32, request->n_channels,
2018                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2019                 chan = request->channels[i];
2020                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2021                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2022
2023                 if (chan->flags & IEEE80211_CHAN_NO_IR)
2024                         user_scan_cfg->chan_list[i].scan_type =
2025                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2026                 else
2027                         user_scan_cfg->chan_list[i].scan_type =
2028                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2029
2030                 user_scan_cfg->chan_list[i].scan_time = 0;
2031         }
2032
2033         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2034         kfree(user_scan_cfg);
2035         if (ret) {
2036                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2037                 priv->scan_aborting = false;
2038                 priv->scan_request = NULL;
2039                 return ret;
2040         }
2041
2042         if (request->ie && request->ie_len) {
2043                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2044                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2045                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2046                                 memset(&priv->vs_ie[i].ie, 0,
2047                                        MWIFIEX_MAX_VSIE_LEN);
2048                         }
2049                 }
2050         }
2051         return 0;
2052 }
2053
2054 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2055                                    struct mwifiex_private *priv)
2056 {
2057         struct mwifiex_adapter *adapter = priv->adapter;
2058
2059         vht_info->vht_supported = true;
2060
2061         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2062         /* Update MCS support for VHT */
2063         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2064                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2065         vht_info->vht_mcs.rx_highest = 0;
2066         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2067                                 adapter->hw_dot_11ac_mcs_support >> 16);
2068         vht_info->vht_mcs.tx_highest = 0;
2069 }
2070
2071 /*
2072  * This function sets up the CFG802.11 specific HT capability fields
2073  * with default values.
2074  *
2075  * The following default values are set -
2076  *      - HT Supported = True
2077  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2078  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2079  *      - HT Capabilities supported by firmware
2080  *      - MCS information, Rx mask = 0xff
2081  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2082  */
2083 static void
2084 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2085                       struct mwifiex_private *priv)
2086 {
2087         int rx_mcs_supp;
2088         struct ieee80211_mcs_info mcs_set;
2089         u8 *mcs = (u8 *)&mcs_set;
2090         struct mwifiex_adapter *adapter = priv->adapter;
2091
2092         ht_info->ht_supported = true;
2093         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2094         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2095
2096         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2097
2098         /* Fill HT capability information */
2099         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2100                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2101         else
2102                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2103
2104         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2105                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2106         else
2107                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2108
2109         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2110                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2111         else
2112                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2113
2114         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2115                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2116         else
2117                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2118
2119         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2120                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2121         else
2122                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2123
2124         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2125                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2126         else
2127                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2128
2129         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2130                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2131         else
2132                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2133
2134         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2135                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2136         else
2137                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2138
2139         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2140         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2141
2142         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2143         /* Set MCS for 1x1/2x2 */
2144         memset(mcs, 0xff, rx_mcs_supp);
2145         /* Clear all the other values */
2146         memset(&mcs[rx_mcs_supp], 0,
2147                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2148         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2149             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2150                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2151                 SETHT_MCS32(mcs_set.rx_mask);
2152
2153         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2154
2155         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2156 }
2157
2158 /*
2159  *  create a new virtual interface with the given name
2160  */
2161 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2162                                               const char *name,
2163                                               enum nl80211_iftype type,
2164                                               u32 *flags,
2165                                               struct vif_params *params)
2166 {
2167         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2168         struct mwifiex_private *priv;
2169         struct net_device *dev;
2170         void *mdev_priv;
2171         struct wireless_dev *wdev;
2172         int ret;
2173
2174         if (!adapter)
2175                 return ERR_PTR(-EFAULT);
2176
2177         switch (type) {
2178         case NL80211_IFTYPE_UNSPECIFIED:
2179         case NL80211_IFTYPE_STATION:
2180         case NL80211_IFTYPE_ADHOC:
2181                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2182                 if (priv->bss_mode) {
2183                         wiphy_err(wiphy,
2184                                   "cannot create multiple sta/adhoc ifaces\n");
2185                         return ERR_PTR(-EINVAL);
2186                 }
2187
2188                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2189                 if (!wdev)
2190                         return ERR_PTR(-ENOMEM);
2191
2192                 wdev->wiphy = wiphy;
2193                 priv->wdev = wdev;
2194                 wdev->iftype = NL80211_IFTYPE_STATION;
2195
2196                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2197                         priv->bss_mode = NL80211_IFTYPE_STATION;
2198                 else
2199                         priv->bss_mode = type;
2200
2201                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2202                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2203                 priv->bss_priority = 0;
2204                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2205                 priv->bss_num = 0;
2206
2207                 break;
2208         case NL80211_IFTYPE_AP:
2209                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2210
2211                 if (priv->bss_mode) {
2212                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2213                         return ERR_PTR(-EINVAL);
2214                 }
2215
2216                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2217                 if (!wdev)
2218                         return ERR_PTR(-ENOMEM);
2219
2220                 priv->wdev = wdev;
2221                 wdev->wiphy = wiphy;
2222                 wdev->iftype = NL80211_IFTYPE_AP;
2223
2224                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2225                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2226                 priv->bss_priority = 0;
2227                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2228                 priv->bss_started = 0;
2229                 priv->bss_num = 0;
2230                 priv->bss_mode = type;
2231
2232                 break;
2233         case NL80211_IFTYPE_P2P_CLIENT:
2234                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2235
2236                 if (priv->bss_mode) {
2237                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2238                         return ERR_PTR(-EINVAL);
2239                 }
2240
2241                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2242                 if (!wdev)
2243                         return ERR_PTR(-ENOMEM);
2244
2245                 priv->wdev = wdev;
2246                 wdev->wiphy = wiphy;
2247
2248                 /* At start-up, wpa_supplicant tries to change the interface
2249                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2250                  */
2251                 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2252                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2253
2254                 /* Setting bss_type to P2P tells firmware that this interface
2255                  * is receiving P2P peers found during find phase and doing
2256                  * action frame handshake.
2257                  */
2258                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2259
2260                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2261                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2262                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2263                 priv->bss_started = 0;
2264                 priv->bss_num = 0;
2265
2266                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2267                         ret = -EFAULT;
2268                         goto err_set_bss_mode;
2269                 }
2270
2271                 break;
2272         default:
2273                 wiphy_err(wiphy, "type not supported\n");
2274                 return ERR_PTR(-EINVAL);
2275         }
2276
2277         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2278                                ether_setup, IEEE80211_NUM_ACS, 1);
2279         if (!dev) {
2280                 wiphy_err(wiphy, "no memory available for netdevice\n");
2281                 ret = -ENOMEM;
2282                 goto err_alloc_netdev;
2283         }
2284
2285         mwifiex_init_priv_params(priv, dev);
2286         priv->netdev = dev;
2287
2288         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2289         if (adapter->is_hw_11ac_capable)
2290                 mwifiex_setup_vht_caps(
2291                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2292
2293         if (adapter->config_bands & BAND_A)
2294                 mwifiex_setup_ht_caps(
2295                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2296
2297         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2298                 mwifiex_setup_vht_caps(
2299                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2300
2301         dev_net_set(dev, wiphy_net(wiphy));
2302         dev->ieee80211_ptr = priv->wdev;
2303         dev->ieee80211_ptr->iftype = priv->bss_mode;
2304         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2305         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2306
2307         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2308         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2309         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2310         dev->ethtool_ops = &mwifiex_ethtool_ops;
2311
2312         mdev_priv = netdev_priv(dev);
2313         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2314
2315         SET_NETDEV_DEV(dev, adapter->dev);
2316
2317         sema_init(&priv->async_sem, 1);
2318
2319         /* Register network device */
2320         if (register_netdevice(dev)) {
2321                 wiphy_err(wiphy, "cannot register virtual network device\n");
2322                 ret = -EFAULT;
2323                 goto err_reg_netdev;
2324         }
2325
2326         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2327
2328 #ifdef CONFIG_DEBUG_FS
2329         mwifiex_dev_debugfs_init(priv);
2330 #endif
2331
2332         return wdev;
2333
2334 err_reg_netdev:
2335         free_netdev(dev);
2336         priv->netdev = NULL;
2337 err_set_bss_mode:
2338 err_alloc_netdev:
2339         kfree(priv->wdev);
2340         priv->wdev = NULL;
2341         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2342         return ERR_PTR(ret);
2343 }
2344 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2345
2346 /*
2347  * del_virtual_intf: remove the virtual interface determined by dev
2348  */
2349 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2350 {
2351         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2352
2353 #ifdef CONFIG_DEBUG_FS
2354         mwifiex_dev_debugfs_remove(priv);
2355 #endif
2356
2357         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2358
2359         if (netif_carrier_ok(priv->netdev))
2360                 netif_carrier_off(priv->netdev);
2361
2362         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2363                 unregister_netdevice(wdev->netdev);
2364
2365         /* Clear the priv in adapter */
2366         priv->netdev->ieee80211_ptr = NULL;
2367         priv->netdev = NULL;
2368         kfree(wdev);
2369         priv->wdev = NULL;
2370
2371         priv->media_connected = false;
2372
2373         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2374
2375         return 0;
2376 }
2377 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2378
2379 static bool
2380 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2381                              u8 max_byte_seq)
2382 {
2383         int j, k, valid_byte_cnt = 0;
2384         bool dont_care_byte = false;
2385
2386         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2387                 for (k = 0; k < 8; k++) {
2388                         if (pat->mask[j] & 1 << k) {
2389                                 memcpy(byte_seq + valid_byte_cnt,
2390                                        &pat->pattern[j * 8 + k], 1);
2391                                 valid_byte_cnt++;
2392                                 if (dont_care_byte)
2393                                         return false;
2394                         } else {
2395                                 if (valid_byte_cnt)
2396                                         dont_care_byte = true;
2397                         }
2398
2399                         if (valid_byte_cnt > max_byte_seq)
2400                                 return false;
2401                 }
2402         }
2403
2404         byte_seq[max_byte_seq] = valid_byte_cnt;
2405
2406         return true;
2407 }
2408
2409 #ifdef CONFIG_PM
2410 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2411                                     struct cfg80211_wowlan *wowlan)
2412 {
2413         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2414         struct mwifiex_ds_mef_cfg mef_cfg;
2415         struct mwifiex_mef_entry *mef_entry;
2416         int i, filt_num = 0, ret;
2417         bool first_pat = true;
2418         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2419         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2420         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2421         struct mwifiex_private *priv =
2422                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2423
2424         if (!wowlan) {
2425                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2426                 return 0;
2427         }
2428
2429         if (!priv->media_connected) {
2430                 dev_warn(adapter->dev,
2431                          "Can not configure WOWLAN in disconnected state\n");
2432                 return 0;
2433         }
2434
2435         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2436         if (!mef_entry)
2437                 return -ENOMEM;
2438
2439         memset(&mef_cfg, 0, sizeof(mef_cfg));
2440         mef_cfg.num_entries = 1;
2441         mef_cfg.mef_entry = mef_entry;
2442         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2443         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2444
2445         for (i = 0; i < wowlan->n_patterns; i++) {
2446                 memset(byte_seq, 0, sizeof(byte_seq));
2447                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2448                                                   byte_seq,
2449                                                   MWIFIEX_MEF_MAX_BYTESEQ)) {
2450                         wiphy_err(wiphy, "Pattern not supported\n");
2451                         kfree(mef_entry);
2452                         return -EOPNOTSUPP;
2453                 }
2454
2455                 if (!wowlan->patterns[i].pkt_offset) {
2456                         if (!(byte_seq[0] & 0x01) &&
2457                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2458                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2459                                 continue;
2460                         } else if (is_broadcast_ether_addr(byte_seq)) {
2461                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2462                                 continue;
2463                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2464                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2465                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2466                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2467                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2468                                 continue;
2469                         }
2470                 }
2471
2472                 mef_entry->filter[filt_num].repeat = 1;
2473                 mef_entry->filter[filt_num].offset =
2474                                                 wowlan->patterns[i].pkt_offset;
2475                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2476                        sizeof(byte_seq));
2477                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2478
2479                 if (first_pat)
2480                         first_pat = false;
2481                 else
2482                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2483
2484                 filt_num++;
2485         }
2486
2487         if (wowlan->magic_pkt) {
2488                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2489                 mef_entry->filter[filt_num].repeat = 16;
2490                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2491                        ETH_ALEN);
2492                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2493                                                                 ETH_ALEN;
2494                 mef_entry->filter[filt_num].offset = 28;
2495                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2496                 if (filt_num)
2497                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2498         }
2499
2500         if (!mef_cfg.criteria)
2501                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2502                                    MWIFIEX_CRITERIA_UNICAST |
2503                                    MWIFIEX_CRITERIA_MULTICAST;
2504
2505         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2506                                HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2507
2508         kfree(mef_entry);
2509         return ret;
2510 }
2511
2512 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2513 {
2514         return 0;
2515 }
2516
2517 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2518                                        bool enabled)
2519 {
2520         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2521
2522         device_set_wakeup_enable(adapter->dev, enabled);
2523 }
2524 #endif
2525
2526 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2527 {
2528         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2529         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2530         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2531
2532         if ((byte_seq[0] & 0x01) &&
2533             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2534                 return PACKET_TYPE_UNICAST;
2535         else if (!memcmp(byte_seq, bc_mac, 4))
2536                 return PACKET_TYPE_BROADCAST;
2537         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2538                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2539                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2540                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2541                 return PACKET_TYPE_MULTICAST;
2542
2543         return 0;
2544 }
2545
2546 static int
2547 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2548                                 struct cfg80211_coalesce_rules *crule,
2549                                 struct mwifiex_coalesce_rule *mrule)
2550 {
2551         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2552         struct filt_field_param *param;
2553         int i;
2554
2555         mrule->max_coalescing_delay = crule->delay;
2556
2557         param = mrule->params;
2558
2559         for (i = 0; i < crule->n_patterns; i++) {
2560                 memset(byte_seq, 0, sizeof(byte_seq));
2561                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2562                                                   byte_seq,
2563                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2564                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2565                         return -EOPNOTSUPP;
2566                 }
2567
2568                 if (!crule->patterns[i].pkt_offset) {
2569                         u8 pkt_type;
2570
2571                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2572                         if (pkt_type && mrule->pkt_type) {
2573                                 dev_err(priv->adapter->dev,
2574                                         "Multiple packet types not allowed\n");
2575                                 return -EOPNOTSUPP;
2576                         } else if (pkt_type) {
2577                                 mrule->pkt_type = pkt_type;
2578                                 continue;
2579                         }
2580                 }
2581
2582                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2583                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2584                 else
2585                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
2586
2587                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2588                 memcpy(param->operand_byte_stream, byte_seq,
2589                        param->operand_len);
2590                 param->offset = crule->patterns[i].pkt_offset;
2591                 param++;
2592
2593                 mrule->num_of_fields++;
2594         }
2595
2596         if (!mrule->pkt_type) {
2597                 dev_err(priv->adapter->dev,
2598                         "Packet type can not be determined\n");
2599                 return -EOPNOTSUPP;
2600         }
2601
2602         return 0;
2603 }
2604
2605 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2606                                          struct cfg80211_coalesce *coalesce)
2607 {
2608         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2609         int i, ret;
2610         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2611         struct mwifiex_private *priv =
2612                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2613
2614         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2615         if (!coalesce) {
2616                 dev_dbg(adapter->dev,
2617                         "Disable coalesce and reset all previous rules\n");
2618                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2619                                         HostCmd_ACT_GEN_SET, 0,
2620                                         &coalesce_cfg, true);
2621         }
2622
2623         coalesce_cfg.num_of_rules = coalesce->n_rules;
2624         for (i = 0; i < coalesce->n_rules; i++) {
2625                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2626                                                       &coalesce_cfg.rule[i]);
2627                 if (ret) {
2628                         dev_err(priv->adapter->dev,
2629                                 "Recheck the patterns provided for rule %d\n",
2630                                 i + 1);
2631                         return ret;
2632                 }
2633         }
2634
2635         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2636                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2637 }
2638
2639 /* cfg80211 ops handler for tdls_mgmt.
2640  * Function prepares TDLS action frame packets and forwards them to FW
2641  */
2642 static int
2643 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2644                            const u8 *peer, u8 action_code, u8 dialog_token,
2645                            u16 status_code, u32 peer_capability,
2646                            const u8 *extra_ies, size_t extra_ies_len)
2647 {
2648         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2649         int ret;
2650
2651         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2652                 return -ENOTSUPP;
2653
2654         /* make sure we are in station mode and connected */
2655         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2656                 return -ENOTSUPP;
2657
2658         switch (action_code) {
2659         case WLAN_TDLS_SETUP_REQUEST:
2660                 dev_dbg(priv->adapter->dev,
2661                         "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2662                          status_code);
2663                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2664                                                    dialog_token, status_code,
2665                                                    extra_ies, extra_ies_len);
2666                 break;
2667         case WLAN_TDLS_SETUP_RESPONSE:
2668                 dev_dbg(priv->adapter->dev,
2669                         "Send TDLS Setup Response to %pM status_code=%d\n",
2670                         peer, status_code);
2671                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2672                                                    dialog_token, status_code,
2673                                                    extra_ies, extra_ies_len);
2674                 break;
2675         case WLAN_TDLS_SETUP_CONFIRM:
2676                 dev_dbg(priv->adapter->dev,
2677                         "Send TDLS Confirm to %pM status_code=%d\n", peer,
2678                         status_code);
2679                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2680                                                    dialog_token, status_code,
2681                                                    extra_ies, extra_ies_len);
2682                 break;
2683         case WLAN_TDLS_TEARDOWN:
2684                 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2685                         peer);
2686                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2687                                                    dialog_token, status_code,
2688                                                    extra_ies, extra_ies_len);
2689                 break;
2690         case WLAN_TDLS_DISCOVERY_REQUEST:
2691                 dev_dbg(priv->adapter->dev,
2692                         "Send TDLS Discovery Request to %pM\n", peer);
2693                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2694                                                    dialog_token, status_code,
2695                                                    extra_ies, extra_ies_len);
2696                 break;
2697         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2698                 dev_dbg(priv->adapter->dev,
2699                         "Send TDLS Discovery Response to %pM\n", peer);
2700                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2701                                                    dialog_token, status_code,
2702                                                    extra_ies, extra_ies_len);
2703                 break;
2704         default:
2705                 dev_warn(priv->adapter->dev,
2706                          "Unknown TDLS mgmt/action frame %pM\n", peer);
2707                 ret = -EINVAL;
2708                 break;
2709         }
2710
2711         return ret;
2712 }
2713
2714 static int
2715 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2716                            const u8 *peer, enum nl80211_tdls_operation action)
2717 {
2718         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2719
2720         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2721             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2722                 return -ENOTSUPP;
2723
2724         /* make sure we are in station mode and connected */
2725         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2726                 return -ENOTSUPP;
2727
2728         dev_dbg(priv->adapter->dev,
2729                 "TDLS peer=%pM, oper=%d\n", peer, action);
2730
2731         switch (action) {
2732         case NL80211_TDLS_ENABLE_LINK:
2733                 action = MWIFIEX_TDLS_ENABLE_LINK;
2734                 break;
2735         case NL80211_TDLS_DISABLE_LINK:
2736                 action = MWIFIEX_TDLS_DISABLE_LINK;
2737                 break;
2738         case NL80211_TDLS_TEARDOWN:
2739                 /* shouldn't happen!*/
2740                 dev_warn(priv->adapter->dev,
2741                          "tdls_oper: teardown from driver not supported\n");
2742                 return -EINVAL;
2743         case NL80211_TDLS_SETUP:
2744                 /* shouldn't happen!*/
2745                 dev_warn(priv->adapter->dev,
2746                          "tdls_oper: setup from driver not supported\n");
2747                 return -EINVAL;
2748         case NL80211_TDLS_DISCOVERY_REQ:
2749                 /* shouldn't happen!*/
2750                 dev_warn(priv->adapter->dev,
2751                          "tdls_oper: discovery from driver not supported\n");
2752                 return -EINVAL;
2753         default:
2754                 dev_err(priv->adapter->dev,
2755                         "tdls_oper: operation not supported\n");
2756                 return -ENOTSUPP;
2757         }
2758
2759         return mwifiex_tdls_oper(priv, peer, action);
2760 }
2761
2762 static int
2763 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2764                              const u8 *mac, struct station_parameters *params)
2765 {
2766         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2767
2768         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2769                 return -ENOTSUPP;
2770
2771         /* make sure we are in station mode and connected */
2772         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2773                 return -ENOTSUPP;
2774
2775         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2776 }
2777
2778 static int
2779 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2780                                 const u8 *mac,
2781                                 struct station_parameters *params)
2782 {
2783         int ret;
2784         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2785
2786         /* we support change_station handler only for TDLS peers*/
2787         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2788                 return -ENOTSUPP;
2789
2790         /* make sure we are in station mode and connected */
2791         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2792                 return -ENOTSUPP;
2793
2794         priv->sta_params = params;
2795
2796         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2797         priv->sta_params = NULL;
2798
2799         return ret;
2800 }
2801
2802 /* station cfg80211 operations */
2803 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2804         .add_virtual_intf = mwifiex_add_virtual_intf,
2805         .del_virtual_intf = mwifiex_del_virtual_intf,
2806         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2807         .scan = mwifiex_cfg80211_scan,
2808         .connect = mwifiex_cfg80211_connect,
2809         .disconnect = mwifiex_cfg80211_disconnect,
2810         .get_station = mwifiex_cfg80211_get_station,
2811         .dump_station = mwifiex_cfg80211_dump_station,
2812         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2813         .join_ibss = mwifiex_cfg80211_join_ibss,
2814         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2815         .add_key = mwifiex_cfg80211_add_key,
2816         .del_key = mwifiex_cfg80211_del_key,
2817         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2818         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2819         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2820         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2821         .set_default_key = mwifiex_cfg80211_set_default_key,
2822         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2823         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2824         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2825         .start_ap = mwifiex_cfg80211_start_ap,
2826         .stop_ap = mwifiex_cfg80211_stop_ap,
2827         .change_beacon = mwifiex_cfg80211_change_beacon,
2828         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2829         .set_antenna = mwifiex_cfg80211_set_antenna,
2830         .del_station = mwifiex_cfg80211_del_station,
2831 #ifdef CONFIG_PM
2832         .suspend = mwifiex_cfg80211_suspend,
2833         .resume = mwifiex_cfg80211_resume,
2834         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2835 #endif
2836         .set_coalesce = mwifiex_cfg80211_set_coalesce,
2837         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2838         .tdls_oper = mwifiex_cfg80211_tdls_oper,
2839         .add_station = mwifiex_cfg80211_add_station,
2840         .change_station = mwifiex_cfg80211_change_station,
2841 };
2842
2843 #ifdef CONFIG_PM
2844 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2845         .flags = WIPHY_WOWLAN_MAGIC_PKT,
2846         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2847         .pattern_min_len = 1,
2848         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2849         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2850 };
2851 #endif
2852
2853 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2854 {
2855         if (!alpha2 || strlen(alpha2) != 2)
2856                 return false;
2857
2858         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2859                 return true;
2860
2861         return false;
2862 }
2863
2864 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2865         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2866         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2867         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2868         .pattern_min_len = 1,
2869         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2870         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2871 };
2872
2873 /*
2874  * This function registers the device with CFG802.11 subsystem.
2875  *
2876  * The function creates the wireless device/wiphy, populates it with
2877  * default parameters and handler function pointers, and finally
2878  * registers the device.
2879  */
2880
2881 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2882 {
2883         int ret;
2884         void *wdev_priv;
2885         struct wiphy *wiphy;
2886         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2887         u8 *country_code;
2888         u32 thr, retry;
2889
2890         /* create a new wiphy for use with cfg80211 */
2891         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2892                           sizeof(struct mwifiex_adapter *));
2893         if (!wiphy) {
2894                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2895                 return -ENOMEM;
2896         }
2897         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2898         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2899         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2900         wiphy->max_remain_on_channel_duration = 5000;
2901         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2902                                  BIT(NL80211_IFTYPE_ADHOC) |
2903                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2904                                  BIT(NL80211_IFTYPE_P2P_GO) |
2905                                  BIT(NL80211_IFTYPE_AP);
2906
2907         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2908         if (adapter->config_bands & BAND_A)
2909                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2910         else
2911                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2912
2913         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2914         wiphy->n_iface_combinations = 1;
2915
2916         /* Initialize cipher suits */
2917         wiphy->cipher_suites = mwifiex_cipher_suites;
2918         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2919
2920         if (adapter->region_code)
2921                 wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS |
2922                                            REGULATORY_COUNTRY_IE_IGNORE;
2923
2924         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2925         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2926         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2927                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2928                         WIPHY_FLAG_AP_UAPSD |
2929                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2930
2931         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2932                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2933                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2934
2935         wiphy->regulatory_flags |=
2936                         REGULATORY_CUSTOM_REG |
2937                         REGULATORY_STRICT_REG;
2938
2939         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2940
2941 #ifdef CONFIG_PM
2942         wiphy->wowlan = &mwifiex_wowlan_support;
2943 #endif
2944
2945         wiphy->coalesce = &mwifiex_coalesce_support;
2946
2947         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2948                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2949                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2950
2951         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2952         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2953
2954         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2955                            NL80211_FEATURE_INACTIVITY_TIMER |
2956                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
2957                            NL80211_FEATURE_NEED_OBSS_SCAN;
2958
2959         /* Reserve space for mwifiex specific private data for BSS */
2960         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2961
2962         wiphy->reg_notifier = mwifiex_reg_notifier;
2963
2964         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2965         wdev_priv = wiphy_priv(wiphy);
2966         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2967
2968         set_wiphy_dev(wiphy, priv->adapter->dev);
2969
2970         ret = wiphy_register(wiphy);
2971         if (ret < 0) {
2972                 dev_err(adapter->dev,
2973                         "%s: wiphy_register failed: %d\n", __func__, ret);
2974                 wiphy_free(wiphy);
2975                 return ret;
2976         }
2977
2978         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
2979                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
2980                 regulatory_hint(wiphy, reg_alpha2);
2981         } else {
2982                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
2983                 if (country_code)
2984                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
2985                                    country_code);
2986         }
2987
2988         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2989                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
2990         wiphy->frag_threshold = thr;
2991         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2992                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
2993         wiphy->rts_threshold = thr;
2994         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2995                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
2996         wiphy->retry_short = (u8) retry;
2997         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2998                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
2999         wiphy->retry_long = (u8) retry;
3000
3001         adapter->wiphy = wiphy;
3002         return ret;
3003 }