drivers/net/wireless/marvell/mwifiex/cfg80211.c

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011-2014, 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 #include "11n.h"
  23 #include "wmm.h"
  24
  25 static char *reg_alpha2;
  26 module_param(reg_alpha2, charp, 0);
  27
  28 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  29         {
  30                 .max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
  31                                    BIT(NL80211_IFTYPE_P2P_GO) |
  32                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
  33                                    BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination
  38 mwifiex_iface_comb_ap_sta = {
  39         .limits = mwifiex_ap_sta_limits,
  40         .num_different_channels = 1,
  41         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  42         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  43         .beacon_int_infra_match = true,
  44         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  45                                 BIT(NL80211_CHAN_WIDTH_20) |
  46                                 BIT(NL80211_CHAN_WIDTH_40),
  47 };
  48
  49 static const struct ieee80211_iface_combination
  50 mwifiex_iface_comb_ap_sta_vht = {
  51         .limits = mwifiex_ap_sta_limits,
  52         .num_different_channels = 1,
  53         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  54         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  55         .beacon_int_infra_match = true,
  56         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  57                                 BIT(NL80211_CHAN_WIDTH_20) |
  58                                 BIT(NL80211_CHAN_WIDTH_40) |
  59                                 BIT(NL80211_CHAN_WIDTH_80),
  60 };
  61
  62 static const struct
  63 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  64         .limits = mwifiex_ap_sta_limits,
  65         .num_different_channels = 2,
  66         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  67         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  68         .beacon_int_infra_match = true,
  69 };
  70
  71 /*
  72  * This function maps the nl802.11 channel type into driver channel type.
  73  *
  74  * The mapping is as follows -
  75  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  76  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  77  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  78  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  79  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80  */
  81 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  82 {
  83         switch (chan_type) {
  84         case NL80211_CHAN_NO_HT:
  85         case NL80211_CHAN_HT20:
  86                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  87         case NL80211_CHAN_HT40PLUS:
  88                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  89         case NL80211_CHAN_HT40MINUS:
  90                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  91         default:
  92                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  93         }
  94 }
  95
  96 /* This function maps IEEE HT secondary channel type to NL80211 channel type
  97  */
  98 u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
  99 {
 100         switch (second_chan_offset) {
 101         case IEEE80211_HT_PARAM_CHA_SEC_NONE:
 102                 return NL80211_CHAN_HT20;
 103         case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 104                 return NL80211_CHAN_HT40PLUS;
 105         case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
 106                 return NL80211_CHAN_HT40MINUS;
 107         default:
 108                 return NL80211_CHAN_HT20;
 109         }
 110 }
 111
 112 /*
 113  * This function checks whether WEP is set.
 114  */
 115 static int
 116 mwifiex_is_alg_wep(u32 cipher)
 117 {
 118         switch (cipher) {
 119         case WLAN_CIPHER_SUITE_WEP40:
 120         case WLAN_CIPHER_SUITE_WEP104:
 121                 return 1;
 122         default:
 123                 break;
 124         }
 125
 126         return 0;
 127 }
 128
 129 /*
 130  * This function retrieves the private structure from kernel wiphy structure.
 131  */
 132 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 133 {
 134         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 135 }
 136
 137 /*
 138  * CFG802.11 operation handler to delete a network key.
 139  */
 140 static int
 141 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 142                          u8 key_index, bool pairwise, const u8 *mac_addr)
 143 {
 144         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 145         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 146         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 147
 148         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 149                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 150                 return -EFAULT;
 151         }
 152
 153         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 154         return 0;
 155 }
 156
 157 /*
 158  * This function forms an skb for management frame.
 159  */
 160 static int
 161 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 162 {
 163         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 164         u16 pkt_len;
 165         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 166
 167         pkt_len = len + ETH_ALEN;
 168
 169         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 170                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 171         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 172
 173         memcpy(skb_push(skb, sizeof(tx_control)),
 174                &tx_control, sizeof(tx_control));
 175
 176         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 177
 178         /* Add packet data and address4 */
 179         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 180                sizeof(struct ieee80211_hdr_3addr));
 181         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 182         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 183                buf + sizeof(struct ieee80211_hdr_3addr),
 184                len - sizeof(struct ieee80211_hdr_3addr));
 185
 186         skb->priority = LOW_PRIO_TID;
 187         __net_timestamp(skb);
 188
 189         return 0;
 190 }
 191
 192 /*
 193  * CFG802.11 operation handler to transmit a management frame.
 194  */
 195 static int
 196 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 197                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 198 {
 199         const u8 *buf = params->buf;
 200         size_t len = params->len;
 201         struct sk_buff *skb;
 202         u16 pkt_len;
 203         const struct ieee80211_mgmt *mgmt;
 204         struct mwifiex_txinfo *tx_info;
 205         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 206
 207         if (!buf || !len) {
 208                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 209                 return -EFAULT;
 210         }
 211
 212         mgmt = (const struct ieee80211_mgmt *)buf;
 213         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 214             ieee80211_is_probe_resp(mgmt->frame_control)) {
 215                 /* Since we support offload probe resp, we need to skip probe
 216                  * resp in AP or GO mode */
 217                 mwifiex_dbg(priv->adapter, INFO,
 218                             "info: skip to send probe resp in AP or GO mode\n");
 219                 return 0;
 220         }
 221
 222         pkt_len = len + ETH_ALEN;
 223         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 224                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 225                             pkt_len + sizeof(pkt_len));
 226
 227         if (!skb) {
 228                 mwifiex_dbg(priv->adapter, ERROR,
 229                             "allocate skb failed for management frame\n");
 230                 return -ENOMEM;
 231         }
 232
 233         tx_info = MWIFIEX_SKB_TXCB(skb);
 234         memset(tx_info, 0, sizeof(*tx_info));
 235         tx_info->bss_num = priv->bss_num;
 236         tx_info->bss_type = priv->bss_type;
 237         tx_info->pkt_len = pkt_len;
 238
 239         mwifiex_form_mgmt_frame(skb, buf, len);
 240         *cookie = prandom_u32() | 1;
 241
 242         if (ieee80211_is_action(mgmt->frame_control))
 243                 skb = mwifiex_clone_skb_for_tx_status(priv,
 244                                                       skb,
 245                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 246         else
 247                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 248                                         GFP_ATOMIC);
 249
 250         mwifiex_queue_tx_pkt(priv, skb);
 251
 252         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 253         return 0;
 254 }
 255
 256 /*
 257  * CFG802.11 operation handler to register a mgmt frame.
 258  */
 259 static void
 260 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 261                                      struct wireless_dev *wdev,
 262                                      u16 frame_type, bool reg)
 263 {
 264         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 265         u32 mask;
 266
 267         if (reg)
 268                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 269         else
 270                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 271
 272         if (mask != priv->mgmt_frame_mask) {
 273                 priv->mgmt_frame_mask = mask;
 274                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 275                                  HostCmd_ACT_GEN_SET, 0,
 276                                  &priv->mgmt_frame_mask, false);
 277                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 278         }
 279 }
 280
 281 /*
 282  * CFG802.11 operation handler to remain on channel.
 283  */
 284 static int
 285 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 286                                    struct wireless_dev *wdev,
 287                                    struct ieee80211_channel *chan,
 288                                    unsigned int duration, u64 *cookie)
 289 {
 290         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 291         int ret;
 292
 293         if (!chan || !cookie) {
 294                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 295                 return -EINVAL;
 296         }
 297
 298         if (priv->roc_cfg.cookie) {
 299                 mwifiex_dbg(priv->adapter, INFO,
 300                             "info: ongoing ROC, cookie = 0x%llx\n",
 301                             priv->roc_cfg.cookie);
 302                 return -EBUSY;
 303         }
 304
 305         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 306                                          duration);
 307
 308         if (!ret) {
 309                 *cookie = prandom_u32() | 1;
 310                 priv->roc_cfg.cookie = *cookie;
 311                 priv->roc_cfg.chan = *chan;
 312
 313                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 314                                           duration, GFP_ATOMIC);
 315
 316                 mwifiex_dbg(priv->adapter, INFO,
 317                             "info: ROC, cookie = 0x%llx\n", *cookie);
 318         }
 319
 320         return ret;
 321 }
 322
 323 /*
 324  * CFG802.11 operation handler to cancel remain on channel.
 325  */
 326 static int
 327 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 328                                           struct wireless_dev *wdev, u64 cookie)
 329 {
 330         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 331         int ret;
 332
 333         if (cookie != priv->roc_cfg.cookie)
 334                 return -ENOENT;
 335
 336         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 337                                          &priv->roc_cfg.chan, 0);
 338
 339         if (!ret) {
 340                 cfg80211_remain_on_channel_expired(wdev, cookie,
 341                                                    &priv->roc_cfg.chan,
 342                                                    GFP_ATOMIC);
 343
 344                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 345
 346                 mwifiex_dbg(priv->adapter, INFO,
 347                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
 348         }
 349
 350         return ret;
 351 }
 352
 353 /*
 354  * CFG802.11 operation handler to set Tx power.
 355  */
 356 static int
 357 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 358                               struct wireless_dev *wdev,
 359                               enum nl80211_tx_power_setting type,
 360                               int mbm)
 361 {
 362         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 363         struct mwifiex_private *priv;
 364         struct mwifiex_power_cfg power_cfg;
 365         int dbm = MBM_TO_DBM(mbm);
 366
 367         if (type == NL80211_TX_POWER_FIXED) {
 368                 power_cfg.is_power_auto = 0;
 369                 power_cfg.power_level = dbm;
 370         } else {
 371                 power_cfg.is_power_auto = 1;
 372         }
 373
 374         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 375
 376         return mwifiex_set_tx_power(priv, &power_cfg);
 377 }
 378
 379 /*
 380  * CFG802.11 operation handler to get Tx power.
 381  */
 382 static int
 383 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 384                               struct wireless_dev *wdev,
 385                               int *dbm)
 386 {
 387         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 388         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 389                                                         MWIFIEX_BSS_ROLE_ANY);
 390         int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 391                                    HostCmd_ACT_GEN_GET, 0, NULL, true);
 392
 393         if (ret < 0)
 394                 return ret;
 395
 396         /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 397         *dbm = priv->tx_power_level;
 398
 399         return 0;
 400 }
 401
 402 /*
 403  * CFG802.11 operation handler to set Power Save option.
 404  *
 405  * The timeout value, if provided, is currently ignored.
 406  */
 407 static int
 408 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 409                                 struct net_device *dev,
 410                                 bool enabled, int timeout)
 411 {
 412         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 413         u32 ps_mode;
 414
 415         if (timeout)
 416                 mwifiex_dbg(priv->adapter, INFO,
 417                             "info: ignore timeout value for IEEE Power Save\n");
 418
 419         ps_mode = enabled;
 420
 421         return mwifiex_drv_set_power(priv, &ps_mode);
 422 }
 423
 424 /*
 425  * CFG802.11 operation handler to set the default network key.
 426  */
 427 static int
 428 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 429                                  u8 key_index, bool unicast,
 430                                  bool multicast)
 431 {
 432         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 433
 434         /* Return if WEP key not configured */
 435         if (!priv->sec_info.wep_enabled)
 436                 return 0;
 437
 438         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 439                 priv->wep_key_curr_index = key_index;
 440         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 441                                       NULL, 0)) {
 442                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 443                 return -EFAULT;
 444         }
 445
 446         return 0;
 447 }
 448
 449 /*
 450  * CFG802.11 operation handler to add a network key.
 451  */
 452 static int
 453 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 454                          u8 key_index, bool pairwise, const u8 *mac_addr,
 455                          struct key_params *params)
 456 {
 457         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 458         struct mwifiex_wep_key *wep_key;
 459         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 460         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 461
 462         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 463             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 464              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 465                 if (params->key && params->key_len) {
 466                         wep_key = &priv->wep_key[key_index];
 467                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 468                         memcpy(wep_key->key_material, params->key,
 469                                params->key_len);
 470                         wep_key->key_index = key_index;
 471                         wep_key->key_length = params->key_len;
 472                         priv->sec_info.wep_enabled = 1;
 473                 }
 474                 return 0;
 475         }
 476
 477         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 478                                key_index, peer_mac, 0)) {
 479                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 480                 return -EFAULT;
 481         }
 482
 483         return 0;
 484 }
 485
 486 /*
 487  * This function sends domain information to the firmware.
 488  *
 489  * The following information are passed to the firmware -
 490  *      - Country codes
 491  *      - Sub bands (first channel, number of channels, maximum Tx power)
 492  */
 493 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 494 {
 495         u8 no_of_triplet = 0;
 496         struct ieee80211_country_ie_triplet *t;
 497         u8 no_of_parsed_chan = 0;
 498         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 499         u8 i, flag = 0;
 500         enum nl80211_band band;
 501         struct ieee80211_supported_band *sband;
 502         struct ieee80211_channel *ch;
 503         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 504         struct mwifiex_private *priv;
 505         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 506
 507         /* Set country code */
 508         domain_info->country_code[0] = adapter->country_code[0];
 509         domain_info->country_code[1] = adapter->country_code[1];
 510         domain_info->country_code[2] = ' ';
 511
 512         band = mwifiex_band_to_radio_type(adapter->config_bands);
 513         if (!wiphy->bands[band]) {
 514                 mwifiex_dbg(adapter, ERROR,
 515                             "11D: setting domain info in FW\n");
 516                 return -1;
 517         }
 518
 519         sband = wiphy->bands[band];
 520
 521         for (i = 0; i < sband->n_channels ; i++) {
 522                 ch = &sband->channels[i];
 523                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 524                         continue;
 525
 526                 if (!flag) {
 527                         flag = 1;
 528                         first_chan = (u32) ch->hw_value;
 529                         next_chan = first_chan;
 530                         max_pwr = ch->max_power;
 531                         no_of_parsed_chan = 1;
 532                         continue;
 533                 }
 534
 535                 if (ch->hw_value == next_chan + 1 &&
 536                     ch->max_power == max_pwr) {
 537                         next_chan++;
 538                         no_of_parsed_chan++;
 539                 } else {
 540                         t = &domain_info->triplet[no_of_triplet];
 541                         t->chans.first_channel = first_chan;
 542                         t->chans.num_channels = no_of_parsed_chan;
 543                         t->chans.max_power = max_pwr;
 544                         no_of_triplet++;
 545                         first_chan = (u32) ch->hw_value;
 546                         next_chan = first_chan;
 547                         max_pwr = ch->max_power;
 548                         no_of_parsed_chan = 1;
 549                 }
 550         }
 551
 552         if (flag) {
 553                 t = &domain_info->triplet[no_of_triplet];
 554                 t->chans.first_channel = first_chan;
 555                 t->chans.num_channels = no_of_parsed_chan;
 556                 t->chans.max_power = max_pwr;
 557                 no_of_triplet++;
 558         }
 559
 560         domain_info->no_of_triplet = no_of_triplet;
 561
 562         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 563
 564         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 565                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 566                 mwifiex_dbg(adapter, INFO,
 567                             "11D: setting domain info in FW\n");
 568                 return -1;
 569         }
 570
 571         return 0;
 572 }
 573
 574 /*
 575  * CFG802.11 regulatory domain callback function.
 576  *
 577  * This function is called when the regulatory domain is changed due to the
 578  * following reasons -
 579  *      - Set by driver
 580  *      - Set by system core
 581  *      - Set by user
 582  *      - Set bt Country IE
 583  */
 584 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 585                                  struct regulatory_request *request)
 586 {
 587         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 588         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 589                                                         MWIFIEX_BSS_ROLE_ANY);
 590         mwifiex_dbg(adapter, INFO,
 591                     "info: cfg80211 regulatory domain callback for %c%c\n",
 592                     request->alpha2[0], request->alpha2[1]);
 593
 594         switch (request->initiator) {
 595         case NL80211_REGDOM_SET_BY_DRIVER:
 596         case NL80211_REGDOM_SET_BY_CORE:
 597         case NL80211_REGDOM_SET_BY_USER:
 598         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 599                 break;
 600         default:
 601                 mwifiex_dbg(adapter, ERROR,
 602                             "unknown regdom initiator: %d\n",
 603                             request->initiator);
 604                 return;
 605         }
 606
 607         /* Don't send world or same regdom info to firmware */
 608         if (strncmp(request->alpha2, "00", 2) &&
 609             strncmp(request->alpha2, adapter->country_code,
 610                     sizeof(request->alpha2))) {
 611                 memcpy(adapter->country_code, request->alpha2,
 612                        sizeof(request->alpha2));
 613                 mwifiex_send_domain_info_cmd_fw(wiphy);
 614                 mwifiex_dnld_txpwr_table(priv);
 615         }
 616 }
 617
 618 /*
 619  * This function sets the fragmentation threshold.
 620  *
 621  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 622  * and MWIFIEX_FRAG_MAX_VALUE.
 623  */
 624 static int
 625 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 626 {
 627         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 628             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 629                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 630
 631         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 632                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 633                                 &frag_thr, true);
 634 }
 635
 636 /*
 637  * This function sets the RTS threshold.
 638
 639  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 640  * and MWIFIEX_RTS_MAX_VALUE.
 641  */
 642 static int
 643 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 644 {
 645         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 646                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 647
 648         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 649                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 650                                 &rts_thr, true);
 651 }
 652
 653 /*
 654  * CFG802.11 operation handler to set wiphy parameters.
 655  *
 656  * This function can be used to set the RTS threshold and the
 657  * Fragmentation threshold of the driver.
 658  */
 659 static int
 660 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 661 {
 662         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 663         struct mwifiex_private *priv;
 664         struct mwifiex_uap_bss_param *bss_cfg;
 665         int ret;
 666
 667         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 668
 669         switch (priv->bss_role) {
 670         case MWIFIEX_BSS_ROLE_UAP:
 671                 if (priv->bss_started) {
 672                         mwifiex_dbg(adapter, ERROR,
 673                                     "cannot change wiphy params when bss started");
 674                         return -EINVAL;
 675                 }
 676
 677                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 678                 if (!bss_cfg)
 679                         return -ENOMEM;
 680
 681                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 682
 683                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 684                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 685                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 686                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 687                 if (changed & WIPHY_PARAM_RETRY_LONG)
 688                         bss_cfg->retry_limit = wiphy->retry_long;
 689
 690                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 691                                        HostCmd_ACT_GEN_SET,
 692                                        UAP_BSS_PARAMS_I, bss_cfg,
 693                                        false);
 694
 695                 kfree(bss_cfg);
 696                 if (ret) {
 697                         mwifiex_dbg(adapter, ERROR,
 698                                     "Failed to set wiphy phy params\n");
 699                         return ret;
 700                 }
 701                 break;
 702
 703         case MWIFIEX_BSS_ROLE_STA:
 704                 if (priv->media_connected) {
 705                         mwifiex_dbg(adapter, ERROR,
 706                                     "cannot change wiphy params when connected");
 707                         return -EINVAL;
 708                 }
 709                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 710                         ret = mwifiex_set_rts(priv,
 711                                               wiphy->rts_threshold);
 712                         if (ret)
 713                                 return ret;
 714                 }
 715                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 716                         ret = mwifiex_set_frag(priv,
 717                                                wiphy->frag_threshold);
 718                         if (ret)
 719                                 return ret;
 720                 }
 721                 break;
 722         }
 723
 724         return 0;
 725 }
 726
 727 static int
 728 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 729 {
 730         u16 mode = P2P_MODE_DISABLE;
 731
 732         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 733                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 734                 return -1;
 735
 736         return 0;
 737 }
 738
 739 /*
 740  * This function initializes the functionalities for P2P client.
 741  * The P2P client initialization sequence is:
 742  * disable -> device -> client
 743  */
 744 static int
 745 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 746 {
 747         u16 mode;
 748
 749         if (mwifiex_cfg80211_deinit_p2p(priv))
 750                 return -1;
 751
 752         mode = P2P_MODE_DEVICE;
 753         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 754                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 755                 return -1;
 756
 757         mode = P2P_MODE_CLIENT;
 758         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 759                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 760                 return -1;
 761
 762         return 0;
 763 }
 764
 765 /*
 766  * This function initializes the functionalities for P2P GO.
 767  * The P2P GO initialization sequence is:
 768  * disable -> device -> GO
 769  */
 770 static int
 771 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 772 {
 773         u16 mode;
 774
 775         if (mwifiex_cfg80211_deinit_p2p(priv))
 776                 return -1;
 777
 778         mode = P2P_MODE_DEVICE;
 779         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 780                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 781                 return -1;
 782
 783         mode = P2P_MODE_GO;
 784         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 785                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 786                 return -1;
 787
 788         return 0;
 789 }
 790
 791 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 792 {
 793         struct mwifiex_adapter *adapter = priv->adapter;
 794         unsigned long flags;
 795
 796         priv->mgmt_frame_mask = 0;
 797         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 798                              HostCmd_ACT_GEN_SET, 0,
 799                              &priv->mgmt_frame_mask, false)) {
 800                 mwifiex_dbg(adapter, ERROR,
 801                             "could not unregister mgmt frame rx\n");
 802                 return -1;
 803         }
 804
 805         mwifiex_deauthenticate(priv, NULL);
 806
 807         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 808         adapter->main_locked = true;
 809         if (adapter->mwifiex_processing) {
 810                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 811                 flush_workqueue(adapter->workqueue);
 812         } else {
 813                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 814         }
 815
 816         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 817         adapter->rx_locked = true;
 818         if (adapter->rx_processing) {
 819                 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 820                 flush_workqueue(adapter->rx_workqueue);
 821         } else {
 822         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 823         }
 824
 825         mwifiex_free_priv(priv);
 826         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 827         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 828         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 829
 830         return 0;
 831 }
 832
 833 static int
 834 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 835                              struct net_device *dev,
 836                              enum nl80211_iftype type)
 837 {
 838         struct mwifiex_adapter *adapter = priv->adapter;
 839         unsigned long flags;
 840
 841         mwifiex_init_priv(priv);
 842
 843         priv->bss_mode = type;
 844         priv->wdev.iftype = type;
 845
 846         mwifiex_init_priv_params(priv, priv->netdev);
 847         priv->bss_started = 0;
 848
 849         switch (type) {
 850         case NL80211_IFTYPE_STATION:
 851         case NL80211_IFTYPE_ADHOC:
 852                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 853                          MWIFIEX_BSS_TYPE_STA);
 854                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 855                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 856                 break;
 857         case NL80211_IFTYPE_P2P_CLIENT:
 858                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 859                          MWIFIEX_BSS_TYPE_P2P);
 860                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 861                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 862                 break;
 863         case NL80211_IFTYPE_P2P_GO:
 864                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 865                          MWIFIEX_BSS_TYPE_P2P);
 866                 priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 867                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 868                 break;
 869         case NL80211_IFTYPE_AP:
 870                 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
 871                          MWIFIEX_BSS_TYPE_UAP);
 872                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 873                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 874                 break;
 875         default:
 876                 mwifiex_dbg(adapter, ERROR,
 877                             "%s: changing to %d not supported\n",
 878                             dev->name, type);
 879                 return -EOPNOTSUPP;
 880         }
 881
 882         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 883         adapter->main_locked = false;
 884         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 885
 886         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
 887         adapter->rx_locked = false;
 888         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 889
 890         return 0;
 891 }
 892
 893 static int
 894 mwifiex_change_vif_to_p2p(struct net_device *dev,
 895                           enum nl80211_iftype curr_iftype,
 896                           enum nl80211_iftype type, u32 *flags,
 897                           struct vif_params *params)
 898 {
 899         struct mwifiex_private *priv;
 900         struct mwifiex_adapter *adapter;
 901
 902         priv = mwifiex_netdev_get_priv(dev);
 903
 904         if (!priv)
 905                 return -1;
 906
 907         adapter = priv->adapter;
 908
 909         if (adapter->curr_iface_comb.p2p_intf ==
 910             adapter->iface_limit.p2p_intf) {
 911                 mwifiex_dbg(adapter, ERROR,
 912                             "cannot create multiple P2P ifaces\n");
 913                 return -1;
 914         }
 915
 916         mwifiex_dbg(adapter, INFO,
 917                     "%s: changing role to p2p\n", dev->name);
 918
 919         if (mwifiex_deinit_priv_params(priv))
 920                 return -1;
 921         if (mwifiex_init_new_priv_params(priv, dev, type))
 922                 return -1;
 923
 924         switch (type) {
 925         case NL80211_IFTYPE_P2P_CLIENT:
 926                 if (mwifiex_cfg80211_init_p2p_client(priv))
 927                         return -EFAULT;
 928                 break;
 929         case NL80211_IFTYPE_P2P_GO:
 930                 if (mwifiex_cfg80211_init_p2p_go(priv))
 931                         return -EFAULT;
 932                 break;
 933         default:
 934                 mwifiex_dbg(adapter, ERROR,
 935                             "%s: changing to %d not supported\n",
 936                             dev->name, type);
 937                 return -EOPNOTSUPP;
 938         }
 939
 940         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 941                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 942                 return -1;
 943
 944         if (mwifiex_sta_init_cmd(priv, false, false))
 945                 return -1;
 946
 947         switch (curr_iftype) {
 948         case NL80211_IFTYPE_STATION:
 949         case NL80211_IFTYPE_ADHOC:
 950                 adapter->curr_iface_comb.sta_intf--;
 951                 break;
 952         case NL80211_IFTYPE_AP:
 953                 adapter->curr_iface_comb.uap_intf--;
 954                 break;
 955         default:
 956                 break;
 957         }
 958
 959         adapter->curr_iface_comb.p2p_intf++;
 960         dev->ieee80211_ptr->iftype = type;
 961
 962         return 0;
 963 }
 964
 965 static int
 966 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
 967                                 enum nl80211_iftype curr_iftype,
 968                                 enum nl80211_iftype type, u32 *flags,
 969                                 struct vif_params *params)
 970 {
 971         struct mwifiex_private *priv;
 972         struct mwifiex_adapter *adapter;
 973
 974         priv = mwifiex_netdev_get_priv(dev);
 975
 976         if (!priv)
 977                 return -1;
 978
 979         adapter = priv->adapter;
 980
 981         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
 982              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
 983             (adapter->curr_iface_comb.sta_intf ==
 984              adapter->iface_limit.sta_intf)) {
 985                 mwifiex_dbg(adapter, ERROR,
 986                             "cannot create multiple station/adhoc ifaces\n");
 987                 return -1;
 988         }
 989
 990         if (type == NL80211_IFTYPE_STATION)
 991                 mwifiex_dbg(adapter, INFO,
 992                             "%s: changing role to station\n", dev->name);
 993         else
 994                 mwifiex_dbg(adapter, INFO,
 995                             "%s: changing role to adhoc\n", dev->name);
 996
 997         if (mwifiex_deinit_priv_params(priv))
 998                 return -1;
 999         if (mwifiex_init_new_priv_params(priv, dev, type))
1000                 return -1;
1001         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1002                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1003                 return -1;
1004         if (mwifiex_sta_init_cmd(priv, false, false))
1005                 return -1;
1006
1007         switch (curr_iftype) {
1008         case NL80211_IFTYPE_P2P_CLIENT:
1009         case NL80211_IFTYPE_P2P_GO:
1010                 adapter->curr_iface_comb.p2p_intf--;
1011                 break;
1012         case NL80211_IFTYPE_AP:
1013                 adapter->curr_iface_comb.uap_intf--;
1014                 break;
1015         default:
1016                 break;
1017         }
1018
1019         adapter->curr_iface_comb.sta_intf++;
1020         dev->ieee80211_ptr->iftype = type;
1021         return 0;
1022 }
1023
1024 static int
1025 mwifiex_change_vif_to_ap(struct net_device *dev,
1026                          enum nl80211_iftype curr_iftype,
1027                          enum nl80211_iftype type, u32 *flags,
1028                          struct vif_params *params)
1029 {
1030         struct mwifiex_private *priv;
1031         struct mwifiex_adapter *adapter;
1032
1033         priv = mwifiex_netdev_get_priv(dev);
1034
1035         if (!priv)
1036                 return -1;
1037
1038         adapter = priv->adapter;
1039
1040         if (adapter->curr_iface_comb.uap_intf ==
1041             adapter->iface_limit.uap_intf) {
1042                 mwifiex_dbg(adapter, ERROR,
1043                             "cannot create multiple AP ifaces\n");
1044                 return -1;
1045         }
1046
1047         mwifiex_dbg(adapter, INFO,
1048                     "%s: changing role to AP\n", dev->name);
1049
1050         if (mwifiex_deinit_priv_params(priv))
1051                 return -1;
1052         if (mwifiex_init_new_priv_params(priv, dev, type))
1053                 return -1;
1054         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1055                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1056                 return -1;
1057         if (mwifiex_sta_init_cmd(priv, false, false))
1058                 return -1;
1059
1060         switch (curr_iftype) {
1061         case NL80211_IFTYPE_P2P_CLIENT:
1062         case NL80211_IFTYPE_P2P_GO:
1063                 adapter->curr_iface_comb.p2p_intf--;
1064                 break;
1065         case NL80211_IFTYPE_STATION:
1066         case NL80211_IFTYPE_ADHOC:
1067                 adapter->curr_iface_comb.sta_intf--;
1068                 break;
1069         default:
1070                 break;
1071         }
1072
1073         adapter->curr_iface_comb.uap_intf++;
1074         dev->ieee80211_ptr->iftype = type;
1075         return 0;
1076 }
1077 /*
1078  * CFG802.11 operation handler to change interface type.
1079  */
1080 static int
1081 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1082                                      struct net_device *dev,
1083                                      enum nl80211_iftype type, u32 *flags,
1084                                      struct vif_params *params)
1085 {
1086         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1087         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1088
1089         switch (curr_iftype) {
1090         case NL80211_IFTYPE_ADHOC:
1091                 switch (type) {
1092                 case NL80211_IFTYPE_STATION:
1093                         priv->bss_mode = type;
1094                         priv->sec_info.authentication_mode =
1095                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1096                         dev->ieee80211_ptr->iftype = type;
1097                         mwifiex_deauthenticate(priv, NULL);
1098                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1099                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1100                                                 true);
1101                 case NL80211_IFTYPE_P2P_CLIENT:
1102                 case NL80211_IFTYPE_P2P_GO:
1103                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1104                                                          type, flags, params);
1105                 case NL80211_IFTYPE_AP:
1106                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1107                                                         flags, params);
1108                 case NL80211_IFTYPE_UNSPECIFIED:
1109                         mwifiex_dbg(priv->adapter, INFO,
1110                                     "%s: kept type as IBSS\n", dev->name);
1111                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1112                         return 0;
1113                 default:
1114                         mwifiex_dbg(priv->adapter, ERROR,
1115                                     "%s: changing to %d not supported\n",
1116                                     dev->name, type);
1117                         return -EOPNOTSUPP;
1118                 }
1119                 break;
1120         case NL80211_IFTYPE_STATION:
1121                 switch (type) {
1122                 case NL80211_IFTYPE_ADHOC:
1123                         priv->bss_mode = type;
1124                         priv->sec_info.authentication_mode =
1125                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1126                         dev->ieee80211_ptr->iftype = type;
1127                         mwifiex_deauthenticate(priv, NULL);
1128                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1129                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1130                                                 true);
1131                 case NL80211_IFTYPE_P2P_CLIENT:
1132                 case NL80211_IFTYPE_P2P_GO:
1133                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1134                                                          type, flags, params);
1135                 case NL80211_IFTYPE_AP:
1136                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1137                                                         flags, params);
1138                 case NL80211_IFTYPE_UNSPECIFIED:
1139                         mwifiex_dbg(priv->adapter, INFO,
1140                                     "%s: kept type as STA\n", dev->name);
1141                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1142                         return 0;
1143                 default:
1144                         mwifiex_dbg(priv->adapter, ERROR,
1145                                     "%s: changing to %d not supported\n",
1146                                     dev->name, type);
1147                         return -EOPNOTSUPP;
1148                 }
1149                 break;
1150         case NL80211_IFTYPE_AP:
1151                 switch (type) {
1152                 case NL80211_IFTYPE_ADHOC:
1153                 case NL80211_IFTYPE_STATION:
1154                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1155                                                                type, flags,
1156                                                                params);
1157                         break;
1158                 case NL80211_IFTYPE_P2P_CLIENT:
1159                 case NL80211_IFTYPE_P2P_GO:
1160                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1161                                                          type, flags, params);
1162                 case NL80211_IFTYPE_UNSPECIFIED:
1163                         mwifiex_dbg(priv->adapter, INFO,
1164                                     "%s: kept type as AP\n", dev->name);
1165                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1166                         return 0;
1167                 default:
1168                         mwifiex_dbg(priv->adapter, ERROR,
1169                                     "%s: changing to %d not supported\n",
1170                                     dev->name, type);
1171                         return -EOPNOTSUPP;
1172                 }
1173                 break;
1174         case NL80211_IFTYPE_P2P_CLIENT:
1175         case NL80211_IFTYPE_P2P_GO:
1176                 switch (type) {
1177                 case NL80211_IFTYPE_STATION:
1178                         if (mwifiex_cfg80211_deinit_p2p(priv))
1179                                 return -EFAULT;
1180                         priv->adapter->curr_iface_comb.p2p_intf--;
1181                         priv->adapter->curr_iface_comb.sta_intf++;
1182                         dev->ieee80211_ptr->iftype = type;
1183                         break;
1184                 case NL80211_IFTYPE_ADHOC:
1185                         if (mwifiex_cfg80211_deinit_p2p(priv))
1186                                 return -EFAULT;
1187                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1188                                                                type, flags,
1189                                                                params);
1190                         break;
1191                 case NL80211_IFTYPE_AP:
1192                         if (mwifiex_cfg80211_deinit_p2p(priv))
1193                                 return -EFAULT;
1194                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1195                                                         flags, params);
1196                 case NL80211_IFTYPE_UNSPECIFIED:
1197                         mwifiex_dbg(priv->adapter, INFO,
1198                                     "%s: kept type as P2P\n", dev->name);
1199                 case NL80211_IFTYPE_P2P_CLIENT:
1200                 case NL80211_IFTYPE_P2P_GO:
1201                         return 0;
1202                 default:
1203                         mwifiex_dbg(priv->adapter, ERROR,
1204                                     "%s: changing to %d not supported\n",
1205                                     dev->name, type);
1206                         return -EOPNOTSUPP;
1207                 }
1208                 break;
1209         default:
1210                 mwifiex_dbg(priv->adapter, ERROR,
1211                             "%s: unknown iftype: %d\n",
1212                             dev->name, dev->ieee80211_ptr->iftype);
1213                 return -EOPNOTSUPP;
1214         }
1215
1216
1217         return 0;
1218 }
1219
1220 static void
1221 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1222                      struct rate_info *rate)
1223 {
1224         struct mwifiex_adapter *adapter = priv->adapter;
1225
1226         if (adapter->is_hw_11ac_capable) {
1227                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1228                 if (tx_htinfo & BIT(0)) {
1229                         /* HT */
1230                         rate->mcs = priv->tx_rate;
1231                         rate->flags |= RATE_INFO_FLAGS_MCS;
1232                 }
1233                 if (tx_htinfo & BIT(1)) {
1234                         /* VHT */
1235                         rate->mcs = priv->tx_rate & 0x0F;
1236                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1237                 }
1238
1239                 if (tx_htinfo & (BIT(1) | BIT(0))) {
1240                         /* HT or VHT */
1241                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
1242                         case 0:
1243                                 rate->bw = RATE_INFO_BW_20;
1244                                 break;
1245                         case (BIT(2)):
1246                                 rate->bw = RATE_INFO_BW_40;
1247                                 break;
1248                         case (BIT(3)):
1249                                 rate->bw = RATE_INFO_BW_80;
1250                                 break;
1251                         case (BIT(3) | BIT(2)):
1252                                 rate->bw = RATE_INFO_BW_160;
1253                                 break;
1254                         }
1255
1256                         if (tx_htinfo & BIT(4))
1257                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1258
1259                         if ((priv->tx_rate >> 4) == 1)
1260                                 rate->nss = 2;
1261                         else
1262                                 rate->nss = 1;
1263                 }
1264         } else {
1265                 /*
1266                  * Bit 0 in tx_htinfo indicates that current Tx rate
1267                  * is 11n rate. Valid MCS index values for us are 0 to 15.
1268                  */
1269                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1270                         rate->mcs = priv->tx_rate;
1271                         rate->flags |= RATE_INFO_FLAGS_MCS;
1272                         rate->bw = RATE_INFO_BW_20;
1273                         if (tx_htinfo & BIT(1))
1274                                 rate->bw = RATE_INFO_BW_40;
1275                         if (tx_htinfo & BIT(2))
1276                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1277                 }
1278         }
1279 }
1280
1281 /*
1282  * This function dumps the station information on a buffer.
1283  *
1284  * The following information are shown -
1285  *      - Total bytes transmitted
1286  *      - Total bytes received
1287  *      - Total packets transmitted
1288  *      - Total packets received
1289  *      - Signal quality level
1290  *      - Transmission rate
1291  */
1292 static int
1293 mwifiex_dump_station_info(struct mwifiex_private *priv,
1294                           struct mwifiex_sta_node *node,
1295                           struct station_info *sinfo)
1296 {
1297         u32 rate;
1298
1299         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1300                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1301                         BIT(NL80211_STA_INFO_TX_BITRATE) |
1302                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1303
1304         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1305                 if (!node)
1306                         return -ENOENT;
1307
1308                 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1309                                 BIT(NL80211_STA_INFO_TX_FAILED);
1310                 sinfo->inactive_time =
1311                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1312
1313                 sinfo->signal = node->stats.rssi;
1314                 sinfo->signal_avg = node->stats.rssi;
1315                 sinfo->rx_bytes = node->stats.rx_bytes;
1316                 sinfo->tx_bytes = node->stats.tx_bytes;
1317                 sinfo->rx_packets = node->stats.rx_packets;
1318                 sinfo->tx_packets = node->stats.tx_packets;
1319                 sinfo->tx_failed = node->stats.tx_failed;
1320
1321                 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1322                                      &sinfo->txrate);
1323                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1324
1325                 return 0;
1326         }
1327
1328         /* Get signal information from the firmware */
1329         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1330                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1331                 mwifiex_dbg(priv->adapter, ERROR,
1332                             "failed to get signal information\n");
1333                 return -EFAULT;
1334         }
1335
1336         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1337                 mwifiex_dbg(priv->adapter, ERROR,
1338                             "getting data rate error\n");
1339                 return -EFAULT;
1340         }
1341
1342         /* Get DTIM period information from firmware */
1343         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1344                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1345                          &priv->dtim_period, true);
1346
1347         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1348
1349         sinfo->signal_avg = priv->bcn_rssi_avg;
1350         sinfo->rx_bytes = priv->stats.rx_bytes;
1351         sinfo->tx_bytes = priv->stats.tx_bytes;
1352         sinfo->rx_packets = priv->stats.rx_packets;
1353         sinfo->tx_packets = priv->stats.tx_packets;
1354         sinfo->signal = priv->bcn_rssi_avg;
1355         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1356         sinfo->txrate.legacy = rate * 5;
1357
1358         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1359                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1360                 sinfo->bss_param.flags = 0;
1361                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1362                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1363                         sinfo->bss_param.flags |=
1364                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1365                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1366                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1367                         sinfo->bss_param.flags |=
1368                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1369                 sinfo->bss_param.dtim_period = priv->dtim_period;
1370                 sinfo->bss_param.beacon_interval =
1371                         priv->curr_bss_params.bss_descriptor.beacon_period;
1372         }
1373
1374         return 0;
1375 }
1376
1377 /*
1378  * CFG802.11 operation handler to get station information.
1379  *
1380  * This function only works in connected mode, and dumps the
1381  * requested station information, if available.
1382  */
1383 static int
1384 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1385                              const u8 *mac, struct station_info *sinfo)
1386 {
1387         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1388
1389         if (!priv->media_connected)
1390                 return -ENOENT;
1391         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1392                 return -ENOENT;
1393
1394         return mwifiex_dump_station_info(priv, NULL, sinfo);
1395 }
1396
1397 /*
1398  * CFG802.11 operation handler to dump station information.
1399  */
1400 static int
1401 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1402                               int idx, u8 *mac, struct station_info *sinfo)
1403 {
1404         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1405         static struct mwifiex_sta_node *node;
1406
1407         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1408             priv->media_connected && idx == 0) {
1409                 ether_addr_copy(mac, priv->cfg_bssid);
1410                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1411         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1412                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1413                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1414
1415                 if (node && (&node->list == &priv->sta_list)) {
1416                         node = NULL;
1417                         return -ENOENT;
1418                 }
1419
1420                 node = list_prepare_entry(node, &priv->sta_list, list);
1421                 list_for_each_entry_continue(node, &priv->sta_list, list) {
1422                         ether_addr_copy(mac, node->mac_addr);
1423                         return mwifiex_dump_station_info(priv, node, sinfo);
1424                 }
1425         }
1426
1427         return -ENOENT;
1428 }
1429
1430 static int
1431 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1432                              int idx, struct survey_info *survey)
1433 {
1434         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1435         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1436         enum nl80211_band band;
1437
1438         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1439
1440         memset(survey, 0, sizeof(struct survey_info));
1441
1442         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1443             priv->media_connected && idx == 0) {
1444                         u8 curr_bss_band = priv->curr_bss_params.band;
1445                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1446
1447                         band = mwifiex_band_to_radio_type(curr_bss_band);
1448                         survey->channel = ieee80211_get_channel(wiphy,
1449                                 ieee80211_channel_to_frequency(chan, band));
1450
1451                         if (priv->bcn_nf_last) {
1452                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1453                                 survey->noise = priv->bcn_nf_last;
1454                         }
1455                         return 0;
1456         }
1457
1458         if (idx >= priv->adapter->num_in_chan_stats)
1459                 return -ENOENT;
1460
1461         if (!pchan_stats[idx].cca_scan_dur)
1462                 return 0;
1463
1464         band = pchan_stats[idx].bandcfg;
1465         survey->channel = ieee80211_get_channel(wiphy,
1466             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1467         survey->filled = SURVEY_INFO_NOISE_DBM |
1468                          SURVEY_INFO_TIME |
1469                          SURVEY_INFO_TIME_BUSY;
1470         survey->noise = pchan_stats[idx].noise;
1471         survey->time = pchan_stats[idx].cca_scan_dur;
1472         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1473
1474         return 0;
1475 }
1476
1477 /* Supported rates to be advertised to the cfg80211 */
1478 static struct ieee80211_rate mwifiex_rates[] = {
1479         {.bitrate = 10, .hw_value = 2, },
1480         {.bitrate = 20, .hw_value = 4, },
1481         {.bitrate = 55, .hw_value = 11, },
1482         {.bitrate = 110, .hw_value = 22, },
1483         {.bitrate = 60, .hw_value = 12, },
1484         {.bitrate = 90, .hw_value = 18, },
1485         {.bitrate = 120, .hw_value = 24, },
1486         {.bitrate = 180, .hw_value = 36, },
1487         {.bitrate = 240, .hw_value = 48, },
1488         {.bitrate = 360, .hw_value = 72, },
1489         {.bitrate = 480, .hw_value = 96, },
1490         {.bitrate = 540, .hw_value = 108, },
1491 };
1492
1493 /* Channel definitions to be advertised to cfg80211 */
1494 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1495         {.center_freq = 2412, .hw_value = 1, },
1496         {.center_freq = 2417, .hw_value = 2, },
1497         {.center_freq = 2422, .hw_value = 3, },
1498         {.center_freq = 2427, .hw_value = 4, },
1499         {.center_freq = 2432, .hw_value = 5, },
1500         {.center_freq = 2437, .hw_value = 6, },
1501         {.center_freq = 2442, .hw_value = 7, },
1502         {.center_freq = 2447, .hw_value = 8, },
1503         {.center_freq = 2452, .hw_value = 9, },
1504         {.center_freq = 2457, .hw_value = 10, },
1505         {.center_freq = 2462, .hw_value = 11, },
1506         {.center_freq = 2467, .hw_value = 12, },
1507         {.center_freq = 2472, .hw_value = 13, },
1508         {.center_freq = 2484, .hw_value = 14, },
1509 };
1510
1511 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1512         .channels = mwifiex_channels_2ghz,
1513         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1514         .bitrates = mwifiex_rates,
1515         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1516 };
1517
1518 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1519         {.center_freq = 5040, .hw_value = 8, },
1520         {.center_freq = 5060, .hw_value = 12, },
1521         {.center_freq = 5080, .hw_value = 16, },
1522         {.center_freq = 5170, .hw_value = 34, },
1523         {.center_freq = 5190, .hw_value = 38, },
1524         {.center_freq = 5210, .hw_value = 42, },
1525         {.center_freq = 5230, .hw_value = 46, },
1526         {.center_freq = 5180, .hw_value = 36, },
1527         {.center_freq = 5200, .hw_value = 40, },
1528         {.center_freq = 5220, .hw_value = 44, },
1529         {.center_freq = 5240, .hw_value = 48, },
1530         {.center_freq = 5260, .hw_value = 52, },
1531         {.center_freq = 5280, .hw_value = 56, },
1532         {.center_freq = 5300, .hw_value = 60, },
1533         {.center_freq = 5320, .hw_value = 64, },
1534         {.center_freq = 5500, .hw_value = 100, },
1535         {.center_freq = 5520, .hw_value = 104, },
1536         {.center_freq = 5540, .hw_value = 108, },
1537         {.center_freq = 5560, .hw_value = 112, },
1538         {.center_freq = 5580, .hw_value = 116, },
1539         {.center_freq = 5600, .hw_value = 120, },
1540         {.center_freq = 5620, .hw_value = 124, },
1541         {.center_freq = 5640, .hw_value = 128, },
1542         {.center_freq = 5660, .hw_value = 132, },
1543         {.center_freq = 5680, .hw_value = 136, },
1544         {.center_freq = 5700, .hw_value = 140, },
1545         {.center_freq = 5745, .hw_value = 149, },
1546         {.center_freq = 5765, .hw_value = 153, },
1547         {.center_freq = 5785, .hw_value = 157, },
1548         {.center_freq = 5805, .hw_value = 161, },
1549         {.center_freq = 5825, .hw_value = 165, },
1550 };
1551
1552 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1553         .channels = mwifiex_channels_5ghz,
1554         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1555         .bitrates = mwifiex_rates + 4,
1556         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1557 };
1558
1559
1560 /* Supported crypto cipher suits to be advertised to cfg80211 */
1561 static const u32 mwifiex_cipher_suites[] = {
1562         WLAN_CIPHER_SUITE_WEP40,
1563         WLAN_CIPHER_SUITE_WEP104,
1564         WLAN_CIPHER_SUITE_TKIP,
1565         WLAN_CIPHER_SUITE_CCMP,
1566         WLAN_CIPHER_SUITE_SMS4,
1567         WLAN_CIPHER_SUITE_AES_CMAC,
1568 };
1569
1570 /* Supported mgmt frame types to be advertised to cfg80211 */
1571 static const struct ieee80211_txrx_stypes
1572 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1573         [NL80211_IFTYPE_STATION] = {
1574                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1575                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1576                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1577                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1578         },
1579         [NL80211_IFTYPE_AP] = {
1580                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1581                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1582                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1583                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1584         },
1585         [NL80211_IFTYPE_P2P_CLIENT] = {
1586                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1587                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1588                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1589                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1590         },
1591         [NL80211_IFTYPE_P2P_GO] = {
1592                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1593                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1594                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1595                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1596         },
1597 };
1598
1599 /*
1600  * CFG802.11 operation handler for setting bit rates.
1601  *
1602  * Function configures data rates to firmware using bitrate mask
1603  * provided by cfg80211.
1604  */
1605 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1606                                 struct net_device *dev,
1607                                 const u8 *peer,
1608                                 const struct cfg80211_bitrate_mask *mask)
1609 {
1610         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1611         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1612         enum nl80211_band band;
1613         struct mwifiex_adapter *adapter = priv->adapter;
1614
1615         if (!priv->media_connected) {
1616                 mwifiex_dbg(adapter, ERROR,
1617                             "Can not set Tx data rate in disconnected state\n");
1618                 return -EINVAL;
1619         }
1620
1621         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1622
1623         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1624
1625         /* Fill HR/DSSS rates. */
1626         if (band == NL80211_BAND_2GHZ)
1627                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1628
1629         /* Fill OFDM rates */
1630         if (band == NL80211_BAND_2GHZ)
1631                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1632         else
1633                 bitmap_rates[1] = mask->control[band].legacy;
1634
1635         /* Fill HT MCS rates */
1636         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1637         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1638                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1639
1640        /* Fill VHT MCS rates */
1641         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1642                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1643                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1644                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1645         }
1646
1647         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1648                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1649 }
1650
1651 /*
1652  * CFG802.11 operation handler for connection quality monitoring.
1653  *
1654  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1655  * events to FW.
1656  */
1657 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1658                                                 struct net_device *dev,
1659                                                 s32 rssi_thold, u32 rssi_hyst)
1660 {
1661         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1662         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1663
1664         priv->cqm_rssi_thold = rssi_thold;
1665         priv->cqm_rssi_hyst = rssi_hyst;
1666
1667         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1668         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1669
1670         /* Subscribe/unsubscribe low and high rssi events */
1671         if (rssi_thold && rssi_hyst) {
1672                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1673                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1674                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1675                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1676                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1677                 return mwifiex_send_cmd(priv,
1678                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1679                                         0, 0, &subsc_evt, true);
1680         } else {
1681                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1682                 return mwifiex_send_cmd(priv,
1683                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1684                                         0, 0, &subsc_evt, true);
1685         }
1686
1687         return 0;
1688 }
1689
1690 /* cfg80211 operation handler for change_beacon.
1691  * Function retrieves and sets modified management IEs to FW.
1692  */
1693 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1694                                           struct net_device *dev,
1695                                           struct cfg80211_beacon_data *data)
1696 {
1697         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1698         struct mwifiex_adapter *adapter = priv->adapter;
1699
1700         mwifiex_cancel_scan(adapter);
1701
1702         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1703                 mwifiex_dbg(priv->adapter, ERROR,
1704                             "%s: bss_type mismatched\n", __func__);
1705                 return -EINVAL;
1706         }
1707
1708         if (!priv->bss_started) {
1709                 mwifiex_dbg(priv->adapter, ERROR,
1710                             "%s: bss not started\n", __func__);
1711                 return -EINVAL;
1712         }
1713
1714         if (mwifiex_set_mgmt_ies(priv, data)) {
1715                 mwifiex_dbg(priv->adapter, ERROR,
1716                             "%s: setting mgmt ies failed\n", __func__);
1717                 return -EFAULT;
1718         }
1719
1720         return 0;
1721 }
1722
1723 /* cfg80211 operation handler for del_station.
1724  * Function deauthenticates station which value is provided in mac parameter.
1725  * If mac is NULL/broadcast, all stations in associated station list are
1726  * deauthenticated. If bss is not started or there are no stations in
1727  * associated stations list, no action is taken.
1728  */
1729 static int
1730 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1731                              struct station_del_parameters *params)
1732 {
1733         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1734         struct mwifiex_sta_node *sta_node;
1735         u8 deauth_mac[ETH_ALEN];
1736         unsigned long flags;
1737
1738         if (!priv->bss_started && priv->wdev.cac_started) {
1739                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1740                 mwifiex_abort_cac(priv);
1741         }
1742
1743         if (list_empty(&priv->sta_list) || !priv->bss_started)
1744                 return 0;
1745
1746         if (!params->mac || is_broadcast_ether_addr(params->mac))
1747                 return 0;
1748
1749         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1750                     __func__, params->mac);
1751
1752         eth_zero_addr(deauth_mac);
1753
1754         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1755         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1756         if (sta_node)
1757                 ether_addr_copy(deauth_mac, params->mac);
1758         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1759
1760         if (is_valid_ether_addr(deauth_mac)) {
1761                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1762                                      HostCmd_ACT_GEN_SET, 0,
1763                                      deauth_mac, true))
1764                         return -1;
1765         }
1766
1767         return 0;
1768 }
1769
1770 static int
1771 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1772 {
1773         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1774         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1775                                                         MWIFIEX_BSS_ROLE_ANY);
1776         struct mwifiex_ds_ant_cfg ant_cfg;
1777
1778         if (!tx_ant || !rx_ant)
1779                 return -EOPNOTSUPP;
1780
1781         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1782                 /* Not a MIMO chip. User should provide specific antenna number
1783                  * for Tx/Rx path or enable all antennas for diversity
1784                  */
1785                 if (tx_ant != rx_ant)
1786                         return -EOPNOTSUPP;
1787
1788                 if ((tx_ant & (tx_ant - 1)) &&
1789                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1790                         return -EOPNOTSUPP;
1791
1792                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1793                     (priv->adapter->number_of_antenna > 1)) {
1794                         tx_ant = RF_ANTENNA_AUTO;
1795                         rx_ant = RF_ANTENNA_AUTO;
1796                 }
1797         } else {
1798                 struct ieee80211_sta_ht_cap *ht_info;
1799                 int rx_mcs_supp;
1800                 enum nl80211_band band;
1801
1802                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1803                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1804                         if (adapter->is_hw_11ac_capable)
1805                                 adapter->usr_dot_11ac_mcs_support =
1806                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1807                 } else {
1808                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1809                         if (adapter->is_hw_11ac_capable)
1810                                 adapter->usr_dot_11ac_mcs_support =
1811                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1812                 }
1813
1814                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1815                         if (!adapter->wiphy->bands[band])
1816                                 continue;
1817
1818                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1819                         rx_mcs_supp =
1820                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1821                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1822                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1823                 }
1824         }
1825
1826         ant_cfg.tx_ant = tx_ant;
1827         ant_cfg.rx_ant = rx_ant;
1828
1829         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1830                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1831 }
1832
1833 static int
1834 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1835 {
1836         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1837         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1838                                                         MWIFIEX_BSS_ROLE_ANY);
1839         mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1840                          HostCmd_ACT_GEN_GET, 0, NULL, true);
1841
1842         *tx_ant = priv->tx_ant;
1843         *rx_ant = priv->rx_ant;
1844
1845         return 0;
1846 }
1847
1848 /* cfg80211 operation handler for stop ap.
1849  * Function stops BSS running at uAP interface.
1850  */
1851 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1852 {
1853         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1854
1855         mwifiex_abort_cac(priv);
1856
1857         if (mwifiex_del_mgmt_ies(priv))
1858                 mwifiex_dbg(priv->adapter, ERROR,
1859                             "Failed to delete mgmt IEs!\n");
1860
1861         priv->ap_11n_enabled = 0;
1862         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1863
1864         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1865                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1866                 mwifiex_dbg(priv->adapter, ERROR,
1867                             "Failed to stop the BSS\n");
1868                 return -1;
1869         }
1870
1871         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1872                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1873                 mwifiex_dbg(priv->adapter, ERROR,
1874                             "Failed to reset BSS\n");
1875                 return -1;
1876         }
1877
1878         if (netif_carrier_ok(priv->netdev))
1879                 netif_carrier_off(priv->netdev);
1880         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1881
1882         return 0;
1883 }
1884
1885 /* cfg80211 operation handler for start_ap.
1886  * Function sets beacon period, DTIM period, SSID and security into
1887  * AP config structure.
1888  * AP is configured with these settings and BSS is started.
1889  */
1890 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1891                                      struct net_device *dev,
1892                                      struct cfg80211_ap_settings *params)
1893 {
1894         struct mwifiex_uap_bss_param *bss_cfg;
1895         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1896
1897         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1898                 return -1;
1899
1900         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1901         if (!bss_cfg)
1902                 return -ENOMEM;
1903
1904         mwifiex_set_sys_config_invalid_data(bss_cfg);
1905
1906         if (params->beacon_interval)
1907                 bss_cfg->beacon_period = params->beacon_interval;
1908         if (params->dtim_period)
1909                 bss_cfg->dtim_period = params->dtim_period;
1910
1911         if (params->ssid && params->ssid_len) {
1912                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1913                 bss_cfg->ssid.ssid_len = params->ssid_len;
1914         }
1915         if (params->inactivity_timeout > 0) {
1916                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1917                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1918                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1919         }
1920
1921         switch (params->hidden_ssid) {
1922         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1923                 bss_cfg->bcast_ssid_ctl = 1;
1924                 break;
1925         case NL80211_HIDDEN_SSID_ZERO_LEN:
1926                 bss_cfg->bcast_ssid_ctl = 0;
1927                 break;
1928         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1929                 /* firmware doesn't support this type of hidden SSID */
1930         default:
1931                 kfree(bss_cfg);
1932                 return -EINVAL;
1933         }
1934
1935         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1936         mwifiex_set_uap_rates(bss_cfg, params);
1937
1938         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1939                 mwifiex_dbg(priv->adapter, ERROR,
1940                             "Failed to parse secuirty parameters!\n");
1941                 goto out;
1942         }
1943
1944         mwifiex_set_ht_params(priv, bss_cfg, params);
1945
1946         if (priv->adapter->is_hw_11ac_capable) {
1947                 mwifiex_set_vht_params(priv, bss_cfg, params);
1948                 mwifiex_set_vht_width(priv, params->chandef.width,
1949                                       priv->ap_11ac_enabled);
1950         }
1951
1952         if (priv->ap_11ac_enabled)
1953                 mwifiex_set_11ac_ba_params(priv);
1954         else
1955                 mwifiex_set_ba_params(priv);
1956
1957         mwifiex_set_wmm_params(priv, bss_cfg, params);
1958
1959         if (mwifiex_is_11h_active(priv))
1960                 mwifiex_set_tpc_params(priv, bss_cfg, params);
1961
1962         if (mwifiex_is_11h_active(priv) &&
1963             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
1964                                            priv->bss_mode)) {
1965                 mwifiex_dbg(priv->adapter, INFO,
1966                             "Disable 11h extensions in FW\n");
1967                 if (mwifiex_11h_activate(priv, false)) {
1968                         mwifiex_dbg(priv->adapter, ERROR,
1969                                     "Failed to disable 11h extensions!!");
1970                         goto out;
1971                 }
1972                 priv->state_11h.is_11h_active = false;
1973         }
1974
1975         if (mwifiex_config_start_uap(priv, bss_cfg)) {
1976                 mwifiex_dbg(priv->adapter, ERROR,
1977                             "Failed to start AP\n");
1978                 goto out;
1979         }
1980
1981         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1982                 goto out;
1983
1984         if (!netif_carrier_ok(priv->netdev))
1985                 netif_carrier_on(priv->netdev);
1986         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
1987
1988         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1989         kfree(bss_cfg);
1990         return 0;
1991
1992 out:
1993         kfree(bss_cfg);
1994         return -1;
1995 }
1996
1997 /*
1998  * CFG802.11 operation handler for disconnection request.
1999  *
2000  * This function does not work when there is already a disconnection
2001  * procedure going on.
2002  */
2003 static int
2004 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2005                             u16 reason_code)
2006 {
2007         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2008
2009         if (!mwifiex_stop_bg_scan(priv))
2010                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2011
2012         if (mwifiex_deauthenticate(priv, NULL))
2013                 return -EFAULT;
2014
2015         eth_zero_addr(priv->cfg_bssid);
2016         priv->hs2_enabled = false;
2017
2018         return 0;
2019 }
2020
2021 /*
2022  * This function informs the CFG802.11 subsystem of a new IBSS.
2023  *
2024  * The following information are sent to the CFG802.11 subsystem
2025  * to register the new IBSS. If we do not register the new IBSS,
2026  * a kernel panic will result.
2027  *      - SSID
2028  *      - SSID length
2029  *      - BSSID
2030  *      - Channel
2031  */
2032 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2033 {
2034         struct ieee80211_channel *chan;
2035         struct mwifiex_bss_info bss_info;
2036         struct cfg80211_bss *bss;
2037         int ie_len;
2038         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2039         enum nl80211_band band;
2040
2041         if (mwifiex_get_bss_info(priv, &bss_info))
2042                 return -1;
2043
2044         ie_buf[0] = WLAN_EID_SSID;
2045         ie_buf[1] = bss_info.ssid.ssid_len;
2046
2047         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2048                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2049         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2050
2051         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2052         chan = __ieee80211_get_channel(priv->wdev.wiphy,
2053                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2054                                                        band));
2055
2056         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2057                                   CFG80211_BSS_FTYPE_UNKNOWN,
2058                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2059                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2060         if (bss) {
2061                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2062                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2063         }
2064
2065         return 0;
2066 }
2067
2068 /*
2069  * This function connects with a BSS.
2070  *
2071  * This function handles both Infra and Ad-Hoc modes. It also performs
2072  * validity checking on the provided parameters, disconnects from the
2073  * current BSS (if any), sets up the association/scan parameters,
2074  * including security settings, and performs specific SSID scan before
2075  * trying to connect.
2076  *
2077  * For Infra mode, the function returns failure if the specified SSID
2078  * is not found in scan table. However, for Ad-Hoc mode, it can create
2079  * the IBSS if it does not exist. On successful completion in either case,
2080  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2081  */
2082 static int
2083 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2084                        const u8 *ssid, const u8 *bssid, int mode,
2085                        struct ieee80211_channel *channel,
2086                        struct cfg80211_connect_params *sme, bool privacy)
2087 {
2088         struct cfg80211_ssid req_ssid;
2089         int ret, auth_type = 0;
2090         struct cfg80211_bss *bss = NULL;
2091         u8 is_scanning_required = 0;
2092
2093         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2094
2095         req_ssid.ssid_len = ssid_len;
2096         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2097                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2098                 return -EINVAL;
2099         }
2100
2101         memcpy(req_ssid.ssid, ssid, ssid_len);
2102         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2103                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2104                 return -EINVAL;
2105         }
2106
2107         /* As this is new association, clear locally stored
2108          * keys and security related flags */
2109         priv->sec_info.wpa_enabled = false;
2110         priv->sec_info.wpa2_enabled = false;
2111         priv->wep_key_curr_index = 0;
2112         priv->sec_info.encryption_mode = 0;
2113         priv->sec_info.is_authtype_auto = 0;
2114         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2115
2116         if (mode == NL80211_IFTYPE_ADHOC) {
2117                 /* "privacy" is set only for ad-hoc mode */
2118                 if (privacy) {
2119                         /*
2120                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2121                          * the firmware can find a matching network from the
2122                          * scan. The cfg80211 does not give us the encryption
2123                          * mode at this stage so just setting it to WEP here.
2124                          */
2125                         priv->sec_info.encryption_mode =
2126                                         WLAN_CIPHER_SUITE_WEP104;
2127                         priv->sec_info.authentication_mode =
2128                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2129                 }
2130
2131                 goto done;
2132         }
2133
2134         /* Now handle infra mode. "sme" is valid for infra mode only */
2135         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2136                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2137                 priv->sec_info.is_authtype_auto = 1;
2138         } else {
2139                 auth_type = sme->auth_type;
2140         }
2141
2142         if (sme->crypto.n_ciphers_pairwise) {
2143                 priv->sec_info.encryption_mode =
2144                                                 sme->crypto.ciphers_pairwise[0];
2145                 priv->sec_info.authentication_mode = auth_type;
2146         }
2147
2148         if (sme->crypto.cipher_group) {
2149                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2150                 priv->sec_info.authentication_mode = auth_type;
2151         }
2152         if (sme->ie)
2153                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2154
2155         if (sme->key) {
2156                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2157                         mwifiex_dbg(priv->adapter, INFO,
2158                                     "info: setting wep encryption\t"
2159                                     "with key len %d\n", sme->key_len);
2160                         priv->wep_key_curr_index = sme->key_idx;
2161                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2162                                                  sme->key_len, sme->key_idx,
2163                                                  NULL, 0);
2164                 }
2165         }
2166 done:
2167         /*
2168          * Scan entries are valid for some time (15 sec). So we can save one
2169          * active scan time if we just try cfg80211_get_bss first. If it fails
2170          * then request scan and cfg80211_get_bss() again for final output.
2171          */
2172         while (1) {
2173                 if (is_scanning_required) {
2174                         /* Do specific SSID scanning */
2175                         if (mwifiex_request_scan(priv, &req_ssid)) {
2176                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2177                                 return -EFAULT;
2178                         }
2179                 }
2180
2181                 /* Find the BSS we want using available scan results */
2182                 if (mode == NL80211_IFTYPE_ADHOC)
2183                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2184                                                bssid, ssid, ssid_len,
2185                                                IEEE80211_BSS_TYPE_IBSS,
2186                                                IEEE80211_PRIVACY_ANY);
2187                 else
2188                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2189                                                bssid, ssid, ssid_len,
2190                                                IEEE80211_BSS_TYPE_ESS,
2191                                                IEEE80211_PRIVACY_ANY);
2192
2193                 if (!bss) {
2194                         if (is_scanning_required) {
2195                                 mwifiex_dbg(priv->adapter, WARN,
2196                                             "assoc: requested bss not found in scan results\n");
2197                                 break;
2198                         }
2199                         is_scanning_required = 1;
2200                 } else {
2201                         mwifiex_dbg(priv->adapter, MSG,
2202                                     "info: trying to associate to '%s' bssid %pM\n",
2203                                     (char *)req_ssid.ssid, bss->bssid);
2204                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2205                         break;
2206                 }
2207         }
2208
2209         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2210         if (ret)
2211                 return ret;
2212
2213         if (mode == NL80211_IFTYPE_ADHOC) {
2214                 /* Inform the BSS information to kernel, otherwise
2215                  * kernel will give a panic after successful assoc */
2216                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2217                         return -EFAULT;
2218         }
2219
2220         return ret;
2221 }
2222
2223 /*
2224  * CFG802.11 operation handler for association request.
2225  *
2226  * This function does not work when the current mode is set to Ad-Hoc, or
2227  * when there is already an association procedure going on. The given BSS
2228  * information is used to associate.
2229  */
2230 static int
2231 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2232                          struct cfg80211_connect_params *sme)
2233 {
2234         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2235         struct mwifiex_adapter *adapter = priv->adapter;
2236         int ret;
2237
2238         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2239                 mwifiex_dbg(adapter, ERROR,
2240                             "%s: reject infra assoc request in non-STA role\n",
2241                             dev->name);
2242                 return -EINVAL;
2243         }
2244
2245         if (priv->wdev.current_bss) {
2246                 mwifiex_dbg(adapter, ERROR,
2247                             "%s: already connected\n", dev->name);
2248                 return -EALREADY;
2249         }
2250
2251         if (priv->scan_block)
2252                 priv->scan_block = false;
2253
2254         if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2255                 mwifiex_dbg(adapter, ERROR,
2256                             "%s: Ignore connection.\t"
2257                             "Card removed or FW in bad state\n",
2258                             dev->name);
2259                 return -EFAULT;
2260         }
2261
2262         mwifiex_dbg(adapter, INFO,
2263                     "info: Trying to associate to %s and bssid %pM\n",
2264                     (char *)sme->ssid, sme->bssid);
2265
2266         if (!mwifiex_stop_bg_scan(priv))
2267                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2268
2269         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2270                                      priv->bss_mode, sme->channel, sme, 0);
2271         if (!ret) {
2272                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2273                                         NULL, 0, WLAN_STATUS_SUCCESS,
2274                                         GFP_KERNEL);
2275                 mwifiex_dbg(priv->adapter, MSG,
2276                             "info: associated to bssid %pM successfully\n",
2277                             priv->cfg_bssid);
2278                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2279                     priv->adapter->auto_tdls &&
2280                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2281                         mwifiex_setup_auto_tdls_timer(priv);
2282         } else {
2283                 mwifiex_dbg(priv->adapter, ERROR,
2284                             "info: association to bssid %pM failed\n",
2285                             priv->cfg_bssid);
2286                 eth_zero_addr(priv->cfg_bssid);
2287
2288                 if (ret > 0)
2289                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2290                                                 NULL, 0, NULL, 0, ret,
2291                                                 GFP_KERNEL);
2292                 else
2293                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2294                                                 NULL, 0, NULL, 0,
2295                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2296                                                 GFP_KERNEL);
2297         }
2298
2299         return 0;
2300 }
2301
2302 /*
2303  * This function sets following parameters for ibss network.
2304  *  -  channel
2305  *  -  start band
2306  *  -  11n flag
2307  *  -  secondary channel offset
2308  */
2309 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2310                                    struct cfg80211_ibss_params *params)
2311 {
2312         struct mwifiex_adapter *adapter = priv->adapter;
2313         int index = 0, i;
2314         u8 config_bands = 0;
2315
2316         if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2317                 if (!params->basic_rates) {
2318                         config_bands = BAND_B | BAND_G;
2319                 } else {
2320                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2321                                 /*
2322                                  * Rates below 6 Mbps in the table are CCK
2323                                  * rates; 802.11b and from 6 they are OFDM;
2324                                  * 802.11G
2325                                  */
2326                                 if (mwifiex_rates[i].bitrate == 60) {
2327                                         index = 1 << i;
2328                                         break;
2329                                 }
2330                         }
2331
2332                         if (params->basic_rates < index) {
2333                                 config_bands = BAND_B;
2334                         } else {
2335                                 config_bands = BAND_G;
2336                                 if (params->basic_rates % index)
2337                                         config_bands |= BAND_B;
2338                         }
2339                 }
2340
2341                 if (cfg80211_get_chandef_type(&params->chandef) !=
2342                                                 NL80211_CHAN_NO_HT)
2343                         config_bands |= BAND_G | BAND_GN;
2344         } else {
2345                 if (cfg80211_get_chandef_type(&params->chandef) ==
2346                                                 NL80211_CHAN_NO_HT)
2347                         config_bands = BAND_A;
2348                 else
2349                         config_bands = BAND_AN | BAND_A;
2350         }
2351
2352         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2353                 adapter->config_bands = config_bands;
2354                 adapter->adhoc_start_band = config_bands;
2355
2356                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2357                         adapter->adhoc_11n_enabled = true;
2358                 else
2359                         adapter->adhoc_11n_enabled = false;
2360         }
2361
2362         adapter->sec_chan_offset =
2363                 mwifiex_chan_type_to_sec_chan_offset(
2364                         cfg80211_get_chandef_type(&params->chandef));
2365         priv->adhoc_channel = ieee80211_frequency_to_channel(
2366                                 params->chandef.chan->center_freq);
2367
2368         mwifiex_dbg(adapter, INFO,
2369                     "info: set ibss band %d, chan %d, chan offset %d\n",
2370                     config_bands, priv->adhoc_channel,
2371                     adapter->sec_chan_offset);
2372
2373         return 0;
2374 }
2375
2376 /*
2377  * CFG802.11 operation handler to join an IBSS.
2378  *
2379  * This function does not work in any mode other than Ad-Hoc, or if
2380  * a join operation is already in progress.
2381  */
2382 static int
2383 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2384                            struct cfg80211_ibss_params *params)
2385 {
2386         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2387         int ret = 0;
2388
2389         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2390                 mwifiex_dbg(priv->adapter, ERROR,
2391                             "request to join ibss received\t"
2392                             "when station is not in ibss mode\n");
2393                 goto done;
2394         }
2395
2396         mwifiex_dbg(priv->adapter, MSG,
2397                     "info: trying to join to %s and bssid %pM\n",
2398                     (char *)params->ssid, params->bssid);
2399
2400         mwifiex_set_ibss_params(priv, params);
2401
2402         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2403                                      params->bssid, priv->bss_mode,
2404                                      params->chandef.chan, NULL,
2405                                      params->privacy);
2406 done:
2407         if (!ret) {
2408                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2409                                      params->chandef.chan, GFP_KERNEL);
2410                 mwifiex_dbg(priv->adapter, MSG,
2411                             "info: joined/created adhoc network with bssid\t"
2412                             "%pM successfully\n", priv->cfg_bssid);
2413         } else {
2414                 mwifiex_dbg(priv->adapter, ERROR,
2415                             "info: failed creating/joining adhoc network\n");
2416         }
2417
2418         return ret;
2419 }
2420
2421 /*
2422  * CFG802.11 operation handler to leave an IBSS.
2423  *
2424  * This function does not work if a leave operation is
2425  * already in progress.
2426  */
2427 static int
2428 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2429 {
2430         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2431
2432         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2433                     priv->cfg_bssid);
2434         if (mwifiex_deauthenticate(priv, NULL))
2435                 return -EFAULT;
2436
2437         eth_zero_addr(priv->cfg_bssid);
2438
2439         return 0;
2440 }
2441
2442 /*
2443  * CFG802.11 operation handler for scan request.
2444  *
2445  * This function issues a scan request to the firmware based upon
2446  * the user specified scan configuration. On successful completion,
2447  * it also informs the results.
2448  */
2449 static int
2450 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2451                       struct cfg80211_scan_request *request)
2452 {
2453         struct net_device *dev = request->wdev->netdev;
2454         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2455         int i, offset, ret;
2456         struct ieee80211_channel *chan;
2457         struct ieee_types_header *ie;
2458         struct mwifiex_user_scan_cfg *user_scan_cfg;
2459
2460         mwifiex_dbg(priv->adapter, CMD,
2461                     "info: received scan request on %s\n", dev->name);
2462
2463         /* Block scan request if scan operation or scan cleanup when interface
2464          * is disabled is in process
2465          */
2466         if (priv->scan_request || priv->scan_aborting) {
2467                 mwifiex_dbg(priv->adapter, WARN,
2468                             "cmd: Scan already in process..\n");
2469                 return -EBUSY;
2470         }
2471
2472         if (!priv->wdev.current_bss && priv->scan_block)
2473                 priv->scan_block = false;
2474
2475         if (!mwifiex_stop_bg_scan(priv))
2476                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
2477
2478         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2479         if (!user_scan_cfg)
2480                 return -ENOMEM;
2481
2482         priv->scan_request = request;
2483
2484         if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2485                 ether_addr_copy(priv->random_mac, request->mac_addr);
2486                 for (i = 0; i < ETH_ALEN; i++) {
2487                         priv->random_mac[i] &= request->mac_addr_mask[i];
2488                         priv->random_mac[i] |= get_random_int() &
2489                                                ~(request->mac_addr_mask[i]);
2490                 }
2491         }
2492
2493         ether_addr_copy(user_scan_cfg->random_mac, priv->random_mac);
2494         user_scan_cfg->num_ssids = request->n_ssids;
2495         user_scan_cfg->ssid_list = request->ssids;
2496
2497         if (request->ie && request->ie_len) {
2498                 offset = 0;
2499                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2500                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2501                                 continue;
2502                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2503                         ie = (struct ieee_types_header *)(request->ie + offset);
2504                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2505                         offset += sizeof(*ie) + ie->len;
2506
2507                         if (offset >= request->ie_len)
2508                                 break;
2509                 }
2510         }
2511
2512         for (i = 0; i < min_t(u32, request->n_channels,
2513                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2514                 chan = request->channels[i];
2515                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2516                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2517
2518                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2519                         user_scan_cfg->chan_list[i].scan_type =
2520                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2521                 else
2522                         user_scan_cfg->chan_list[i].scan_type =
2523                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2524
2525                 user_scan_cfg->chan_list[i].scan_time = 0;
2526         }
2527
2528         if (priv->adapter->scan_chan_gap_enabled &&
2529             mwifiex_is_any_intf_active(priv))
2530                 user_scan_cfg->scan_chan_gap =
2531                                               priv->adapter->scan_chan_gap_time;
2532
2533         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2534         kfree(user_scan_cfg);
2535         if (ret) {
2536                 mwifiex_dbg(priv->adapter, ERROR,
2537                             "scan failed: %d\n", ret);
2538                 priv->scan_aborting = false;
2539                 priv->scan_request = NULL;
2540                 return ret;
2541         }
2542
2543         if (request->ie && request->ie_len) {
2544                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2545                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2546                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2547                                 memset(&priv->vs_ie[i].ie, 0,
2548                                        MWIFIEX_MAX_VSIE_LEN);
2549                         }
2550                 }
2551         }
2552         return 0;
2553 }
2554
2555 /* CFG802.11 operation handler for sched_scan_start.
2556  *
2557  * This function issues a bgscan config request to the firmware based upon
2558  * the user specified sched_scan configuration. On successful completion,
2559  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2560  * query command to get sched_scan results from firmware.
2561  */
2562 static int
2563 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2564                                   struct net_device *dev,
2565                                   struct cfg80211_sched_scan_request *request)
2566 {
2567         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2568         int i, offset;
2569         struct ieee80211_channel *chan;
2570         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2571         struct ieee_types_header *ie;
2572
2573         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2574                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2575                           __func__);
2576                 return -EINVAL;
2577         }
2578
2579         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2580                    request->n_ssids, request->n_match_sets);
2581         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2582                    request->n_channels, request->scan_plans->interval,
2583                    (int)request->ie_len);
2584
2585         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2586         if (!bgscan_cfg)
2587                 return -ENOMEM;
2588
2589         if (priv->scan_request || priv->scan_aborting)
2590                 bgscan_cfg->start_later = true;
2591
2592         bgscan_cfg->num_ssids = request->n_match_sets;
2593         bgscan_cfg->ssid_list = request->match_sets;
2594
2595         if (request->ie && request->ie_len) {
2596                 offset = 0;
2597                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2598                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2599                                 continue;
2600                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2601                         ie = (struct ieee_types_header *)(request->ie + offset);
2602                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2603                         offset += sizeof(*ie) + ie->len;
2604
2605                         if (offset >= request->ie_len)
2606                                 break;
2607                 }
2608         }
2609
2610         for (i = 0; i < min_t(u32, request->n_channels,
2611                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2612                 chan = request->channels[i];
2613                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2614                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2615
2616                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2617                         bgscan_cfg->chan_list[i].scan_type =
2618                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2619                 else
2620                         bgscan_cfg->chan_list[i].scan_type =
2621                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2622
2623                 bgscan_cfg->chan_list[i].scan_time = 0;
2624         }
2625
2626         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2627                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2628
2629         /* Use at least 15 second for per scan cycle */
2630         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2631                                      MWIFIEX_BGSCAN_INTERVAL) ?
2632                                 request->scan_plans->interval :
2633                                 MWIFIEX_BGSCAN_INTERVAL;
2634
2635         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2636         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2637                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2638         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2639         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2640         bgscan_cfg->enable = true;
2641         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2642                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2643                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2644         }
2645
2646         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2647                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2648                 kfree(bgscan_cfg);
2649                 return -EFAULT;
2650         }
2651
2652         priv->sched_scanning = true;
2653
2654         kfree(bgscan_cfg);
2655         return 0;
2656 }
2657
2658 /* CFG802.11 operation handler for sched_scan_stop.
2659  *
2660  * This function issues a bgscan config command to disable
2661  * previous bgscan configuration in the firmware
2662  */
2663 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2664                                             struct net_device *dev)
2665 {
2666         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2667
2668         wiphy_info(wiphy, "sched scan stop!");
2669         mwifiex_stop_bg_scan(priv);
2670
2671         return 0;
2672 }
2673
2674 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2675                                    struct mwifiex_private *priv)
2676 {
2677         struct mwifiex_adapter *adapter = priv->adapter;
2678
2679         vht_info->vht_supported = true;
2680
2681         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2682         /* Update MCS support for VHT */
2683         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2684                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2685         vht_info->vht_mcs.rx_highest = 0;
2686         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2687                                 adapter->hw_dot_11ac_mcs_support >> 16);
2688         vht_info->vht_mcs.tx_highest = 0;
2689 }
2690
2691 /*
2692  * This function sets up the CFG802.11 specific HT capability fields
2693  * with default values.
2694  *
2695  * The following default values are set -
2696  *      - HT Supported = True
2697  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2698  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2699  *      - HT Capabilities supported by firmware
2700  *      - MCS information, Rx mask = 0xff
2701  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2702  */
2703 static void
2704 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2705                       struct mwifiex_private *priv)
2706 {
2707         int rx_mcs_supp;
2708         struct ieee80211_mcs_info mcs_set;
2709         u8 *mcs = (u8 *)&mcs_set;
2710         struct mwifiex_adapter *adapter = priv->adapter;
2711
2712         ht_info->ht_supported = true;
2713         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2714         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2715
2716         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2717
2718         /* Fill HT capability information */
2719         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2720                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2721         else
2722                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2723
2724         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2725                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2726         else
2727                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2728
2729         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2730                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2731         else
2732                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2733
2734         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2735                 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2736         else
2737                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2738
2739         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2740                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2741         else
2742                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2743
2744         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2745                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2746         else
2747                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2748
2749         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2750                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2751         else
2752                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2753
2754         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2755                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2756         else
2757                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2758
2759         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2760         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2761
2762         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2763         /* Set MCS for 1x1/2x2 */
2764         memset(mcs, 0xff, rx_mcs_supp);
2765         /* Clear all the other values */
2766         memset(&mcs[rx_mcs_supp], 0,
2767                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2768         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2769             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2770                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2771                 SETHT_MCS32(mcs_set.rx_mask);
2772
2773         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2774
2775         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2776 }
2777
2778 /*
2779  *  create a new virtual interface with the given name and name assign type
2780  */
2781 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2782                                               const char *name,
2783                                               unsigned char name_assign_type,
2784                                               enum nl80211_iftype type,
2785                                               u32 *flags,
2786                                               struct vif_params *params)
2787 {
2788         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2789         struct mwifiex_private *priv;
2790         struct net_device *dev;
2791         void *mdev_priv;
2792         int ret;
2793
2794         if (!adapter)
2795                 return ERR_PTR(-EFAULT);
2796
2797         switch (type) {
2798         case NL80211_IFTYPE_UNSPECIFIED:
2799         case NL80211_IFTYPE_STATION:
2800         case NL80211_IFTYPE_ADHOC:
2801                 if (adapter->curr_iface_comb.sta_intf ==
2802                     adapter->iface_limit.sta_intf) {
2803                         mwifiex_dbg(adapter, ERROR,
2804                                     "cannot create multiple sta/adhoc ifaces\n");
2805                         return ERR_PTR(-EINVAL);
2806                 }
2807
2808                 priv = mwifiex_get_unused_priv_by_bss_type(
2809                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2810                 if (!priv) {
2811                         mwifiex_dbg(adapter, ERROR,
2812                                     "could not get free private struct\n");
2813                         return ERR_PTR(-EFAULT);
2814                 }
2815
2816                 priv->wdev.wiphy = wiphy;
2817                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2818
2819                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2820                         priv->bss_mode = NL80211_IFTYPE_STATION;
2821                 else
2822                         priv->bss_mode = type;
2823
2824                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2825                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2826                 priv->bss_priority = 0;
2827                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2828
2829                 break;
2830         case NL80211_IFTYPE_AP:
2831                 if (adapter->curr_iface_comb.uap_intf ==
2832                     adapter->iface_limit.uap_intf) {
2833                         mwifiex_dbg(adapter, ERROR,
2834                                     "cannot create multiple AP ifaces\n");
2835                         return ERR_PTR(-EINVAL);
2836                 }
2837
2838                 priv = mwifiex_get_unused_priv_by_bss_type(
2839                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
2840                 if (!priv) {
2841                         mwifiex_dbg(adapter, ERROR,
2842                                     "could not get free private struct\n");
2843                         return ERR_PTR(-EFAULT);
2844                 }
2845
2846                 priv->wdev.wiphy = wiphy;
2847                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2848
2849                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2850                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2851                 priv->bss_priority = 0;
2852                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2853                 priv->bss_started = 0;
2854                 priv->bss_mode = type;
2855
2856                 break;
2857         case NL80211_IFTYPE_P2P_CLIENT:
2858                 if (adapter->curr_iface_comb.p2p_intf ==
2859                     adapter->iface_limit.p2p_intf) {
2860                         mwifiex_dbg(adapter, ERROR,
2861                                     "cannot create multiple P2P ifaces\n");
2862                         return ERR_PTR(-EINVAL);
2863                 }
2864
2865                 priv = mwifiex_get_unused_priv_by_bss_type(
2866                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
2867                 if (!priv) {
2868                         mwifiex_dbg(adapter, ERROR,
2869                                     "could not get free private struct\n");
2870                         return ERR_PTR(-EFAULT);
2871                 }
2872
2873                 priv->wdev.wiphy = wiphy;
2874                 /* At start-up, wpa_supplicant tries to change the interface
2875                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2876                  */
2877                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2878                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2879
2880                 /* Setting bss_type to P2P tells firmware that this interface
2881                  * is receiving P2P peers found during find phase and doing
2882                  * action frame handshake.
2883                  */
2884                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2885
2886                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2887                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2888                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2889                 priv->bss_started = 0;
2890
2891                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2892                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2893                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2894                         return ERR_PTR(-EFAULT);
2895                 }
2896
2897                 break;
2898         default:
2899                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2900                 return ERR_PTR(-EINVAL);
2901         }
2902
2903         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2904                                name_assign_type, ether_setup,
2905                                IEEE80211_NUM_ACS, 1);
2906         if (!dev) {
2907                 mwifiex_dbg(adapter, ERROR,
2908                             "no memory available for netdevice\n");
2909                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2910                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2911                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2912                 return ERR_PTR(-ENOMEM);
2913         }
2914
2915         mwifiex_init_priv_params(priv, dev);
2916         priv->netdev = dev;
2917
2918         ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
2919                                HostCmd_ACT_GEN_SET, 0, NULL, true);
2920         if (ret)
2921                 return ERR_PTR(ret);
2922
2923         ret = mwifiex_sta_init_cmd(priv, false, false);
2924         if (ret)
2925                 return ERR_PTR(ret);
2926
2927         mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
2928         if (adapter->is_hw_11ac_capable)
2929                 mwifiex_setup_vht_caps(
2930                         &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
2931
2932         if (adapter->config_bands & BAND_A)
2933                 mwifiex_setup_ht_caps(
2934                         &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
2935
2936         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2937                 mwifiex_setup_vht_caps(
2938                         &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
2939
2940         dev_net_set(dev, wiphy_net(wiphy));
2941         dev->ieee80211_ptr = &priv->wdev;
2942         dev->ieee80211_ptr->iftype = priv->bss_mode;
2943         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2944         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2945
2946         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2947         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2948         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2949         dev->ethtool_ops = &mwifiex_ethtool_ops;
2950
2951         mdev_priv = netdev_priv(dev);
2952         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2953
2954         SET_NETDEV_DEV(dev, adapter->dev);
2955
2956         /* Register network device */
2957         if (register_netdevice(dev)) {
2958                 mwifiex_dbg(adapter, ERROR,
2959                             "cannot register virtual network device\n");
2960                 free_netdev(dev);
2961                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2962                 priv->netdev = NULL;
2963                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2964                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2965                 return ERR_PTR(-EFAULT);
2966         }
2967
2968         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2969                                                   WQ_HIGHPRI |
2970                                                   WQ_MEM_RECLAIM |
2971                                                   WQ_UNBOUND, 1, name);
2972         if (!priv->dfs_cac_workqueue) {
2973                 mwifiex_dbg(adapter, ERROR,
2974                             "cannot register virtual network device\n");
2975                 free_netdev(dev);
2976                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2977                 priv->netdev = NULL;
2978                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2979                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2980                 return ERR_PTR(-ENOMEM);
2981         }
2982
2983         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2984
2985         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2986                                                       WQ_HIGHPRI | WQ_UNBOUND |
2987                                                       WQ_MEM_RECLAIM, 1, name);
2988         if (!priv->dfs_chan_sw_workqueue) {
2989                 mwifiex_dbg(adapter, ERROR,
2990                             "cannot register virtual network device\n");
2991                 free_netdev(dev);
2992                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2993                 priv->netdev = NULL;
2994                 memset(&priv->wdev, 0, sizeof(priv->wdev));
2995                 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2996                 return ERR_PTR(-ENOMEM);
2997         }
2998
2999         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3000                           mwifiex_dfs_chan_sw_work_queue);
3001
3002         sema_init(&priv->async_sem, 1);
3003
3004         mwifiex_dbg(adapter, INFO,
3005                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
3006
3007 #ifdef CONFIG_DEBUG_FS
3008         mwifiex_dev_debugfs_init(priv);
3009 #endif
3010
3011         switch (type) {
3012         case NL80211_IFTYPE_UNSPECIFIED:
3013         case NL80211_IFTYPE_STATION:
3014         case NL80211_IFTYPE_ADHOC:
3015                 adapter->curr_iface_comb.sta_intf++;
3016                 break;
3017         case NL80211_IFTYPE_AP:
3018                 adapter->curr_iface_comb.uap_intf++;
3019                 break;
3020         case NL80211_IFTYPE_P2P_CLIENT:
3021                 adapter->curr_iface_comb.p2p_intf++;
3022                 break;
3023         default:
3024                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3025                 return ERR_PTR(-EINVAL);
3026         }
3027
3028         return &priv->wdev;
3029 }
3030 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3031
3032 /*
3033  * del_virtual_intf: remove the virtual interface determined by dev
3034  */
3035 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3036 {
3037         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3038         struct mwifiex_adapter *adapter = priv->adapter;
3039         struct sk_buff *skb, *tmp;
3040
3041 #ifdef CONFIG_DEBUG_FS
3042         mwifiex_dev_debugfs_remove(priv);
3043 #endif
3044
3045         if (priv->sched_scanning)
3046                 priv->sched_scanning = false;
3047
3048         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3049
3050         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp)
3051                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3052
3053         if (netif_carrier_ok(priv->netdev))
3054                 netif_carrier_off(priv->netdev);
3055
3056         if (wdev->netdev->reg_state == NETREG_REGISTERED)
3057                 unregister_netdevice(wdev->netdev);
3058
3059         if (priv->dfs_cac_workqueue) {
3060                 flush_workqueue(priv->dfs_cac_workqueue);
3061                 destroy_workqueue(priv->dfs_cac_workqueue);
3062                 priv->dfs_cac_workqueue = NULL;
3063         }
3064
3065         if (priv->dfs_chan_sw_workqueue) {
3066                 flush_workqueue(priv->dfs_chan_sw_workqueue);
3067                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3068                 priv->dfs_chan_sw_workqueue = NULL;
3069         }
3070         /* Clear the priv in adapter */
3071         priv->netdev->ieee80211_ptr = NULL;
3072         priv->netdev = NULL;
3073         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3074
3075         priv->media_connected = false;
3076
3077         switch (priv->bss_mode) {
3078         case NL80211_IFTYPE_UNSPECIFIED:
3079         case NL80211_IFTYPE_STATION:
3080         case NL80211_IFTYPE_ADHOC:
3081                 adapter->curr_iface_comb.sta_intf--;
3082                 break;
3083         case NL80211_IFTYPE_AP:
3084                 adapter->curr_iface_comb.uap_intf--;
3085                 break;
3086         case NL80211_IFTYPE_P2P_CLIENT:
3087         case NL80211_IFTYPE_P2P_GO:
3088                 adapter->curr_iface_comb.p2p_intf--;
3089                 break;
3090         default:
3091                 mwifiex_dbg(adapter, ERROR,
3092                             "del_virtual_intf: type not supported\n");
3093                 break;
3094         }
3095
3096         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3097
3098         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3099             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3100                 kfree(priv->hist_data);
3101
3102         return 0;
3103 }
3104 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3105
3106 static bool
3107 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3108                              u8 max_byte_seq)
3109 {
3110         int j, k, valid_byte_cnt = 0;
3111         bool dont_care_byte = false;
3112
3113         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3114                 for (k = 0; k < 8; k++) {
3115                         if (pat->mask[j] & 1 << k) {
3116                                 memcpy(byte_seq + valid_byte_cnt,
3117                                        &pat->pattern[j * 8 + k], 1);
3118                                 valid_byte_cnt++;
3119                                 if (dont_care_byte)
3120                                         return false;
3121                         } else {
3122                                 if (valid_byte_cnt)
3123                                         dont_care_byte = true;
3124                         }
3125
3126                         /* wildcard bytes record as the offset
3127                          * before the valid byte
3128                          */
3129                         if (!valid_byte_cnt && !dont_care_byte)
3130                                 pat->pkt_offset++;
3131
3132                         if (valid_byte_cnt > max_byte_seq)
3133                                 return false;
3134                 }
3135         }
3136
3137         byte_seq[max_byte_seq] = valid_byte_cnt;
3138
3139         return true;
3140 }
3141
3142 #ifdef CONFIG_PM
3143 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3144                                            struct mwifiex_mef_entry *mef_entry)
3145 {
3146         int i, filt_num = 0, num_ipv4 = 0;
3147         struct in_device *in_dev;
3148         struct in_ifaddr *ifa;
3149         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3150         struct mwifiex_adapter *adapter = priv->adapter;
3151
3152         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3153         mef_entry->action = MEF_ACTION_AUTO_ARP;
3154
3155         /* Enable ARP offload feature */
3156         memset(ips, 0, sizeof(ips));
3157         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3158                 if (adapter->priv[i]->netdev) {
3159                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3160                         if (!in_dev)
3161                                 continue;
3162                         ifa = in_dev->ifa_list;
3163                         if (!ifa || !ifa->ifa_local)
3164                                 continue;
3165                         ips[i] = ifa->ifa_local;
3166                         num_ipv4++;
3167                 }
3168         }
3169
3170         for (i = 0; i < num_ipv4; i++) {
3171                 if (!ips[i])
3172                         continue;
3173                 mef_entry->filter[filt_num].repeat = 1;
3174                 memcpy(mef_entry->filter[filt_num].byte_seq,
3175                        (u8 *)&ips[i], sizeof(ips[i]));
3176                 mef_entry->filter[filt_num].
3177                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3178                         sizeof(ips[i]);
3179                 mef_entry->filter[filt_num].offset = 46;
3180                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3181                 if (filt_num) {
3182                         mef_entry->filter[filt_num].filt_action =
3183                                 TYPE_OR;
3184                 }
3185                 filt_num++;
3186         }
3187
3188         mef_entry->filter[filt_num].repeat = 1;
3189         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3190         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3191         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3192         mef_entry->filter[filt_num].offset = 20;
3193         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3194         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3195 }
3196
3197 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3198                                         struct mwifiex_ds_mef_cfg *mef_cfg,
3199                                         struct mwifiex_mef_entry *mef_entry,
3200                                         struct cfg80211_wowlan *wowlan)
3201 {
3202         int i, filt_num = 0, ret = 0;
3203         bool first_pat = true;
3204         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3205         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3206         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3207
3208         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3209         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3210
3211         for (i = 0; i < wowlan->n_patterns; i++) {
3212                 memset(byte_seq, 0, sizeof(byte_seq));
3213                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3214                                         byte_seq,
3215                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3216                         mwifiex_dbg(priv->adapter, ERROR,
3217                                     "Pattern not supported\n");
3218                         return -EOPNOTSUPP;
3219                 }
3220
3221                 if (!wowlan->patterns[i].pkt_offset) {
3222                         if (!(byte_seq[0] & 0x01) &&
3223                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3224                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3225                                 continue;
3226                         } else if (is_broadcast_ether_addr(byte_seq)) {
3227                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3228                                 continue;
3229                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3230                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3231                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3232                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3233                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3234                                 continue;
3235                         }
3236                 }
3237                 mef_entry->filter[filt_num].repeat = 1;
3238                 mef_entry->filter[filt_num].offset =
3239                         wowlan->patterns[i].pkt_offset;
3240                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3241                                 sizeof(byte_seq));
3242                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3243
3244                 if (first_pat) {
3245                         first_pat = false;
3246                         mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3247                 } else {
3248                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3249                 }
3250
3251                 filt_num++;
3252         }
3253
3254         if (wowlan->magic_pkt) {
3255                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3256                 mef_entry->filter[filt_num].repeat = 16;
3257                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3258                                 ETH_ALEN);
3259                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3260                         ETH_ALEN;
3261                 mef_entry->filter[filt_num].offset = 28;
3262                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3263                 if (filt_num)
3264                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3265
3266                 filt_num++;
3267                 mef_entry->filter[filt_num].repeat = 16;
3268                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3269                                 ETH_ALEN);
3270                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3271                         ETH_ALEN;
3272                 mef_entry->filter[filt_num].offset = 56;
3273                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3274                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3275                 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3276         }
3277         return ret;
3278 }
3279
3280 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3281                                   struct cfg80211_wowlan *wowlan)
3282 {
3283         int ret = 0, num_entries = 1;
3284         struct mwifiex_ds_mef_cfg mef_cfg;
3285         struct mwifiex_mef_entry *mef_entry;
3286
3287         if (wowlan->n_patterns || wowlan->magic_pkt)
3288                 num_entries++;
3289
3290         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3291         if (!mef_entry)
3292                 return -ENOMEM;
3293
3294         memset(&mef_cfg, 0, sizeof(mef_cfg));
3295         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3296                 MWIFIEX_CRITERIA_UNICAST;
3297         mef_cfg.num_entries = num_entries;
3298         mef_cfg.mef_entry = mef_entry;
3299
3300         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3301
3302         if (wowlan->n_patterns || wowlan->magic_pkt) {
3303                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3304                                                    &mef_entry[1], wowlan);
3305                 if (ret)
3306                         goto err;
3307         }
3308
3309         if (!mef_cfg.criteria)
3310                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3311                         MWIFIEX_CRITERIA_UNICAST |
3312                         MWIFIEX_CRITERIA_MULTICAST;
3313
3314         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3315                         HostCmd_ACT_GEN_SET, 0,
3316                         &mef_cfg, true);
3317
3318 err:
3319         kfree(mef_entry);
3320         return ret;
3321 }
3322
3323 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3324                                     struct cfg80211_wowlan *wowlan)
3325 {
3326         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3327         struct mwifiex_ds_hs_cfg hs_cfg;
3328         int i, ret = 0, retry_num = 10;
3329         struct mwifiex_private *priv;
3330         struct mwifiex_private *sta_priv =
3331                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3332
3333         sta_priv->scan_aborting = true;
3334         for (i = 0; i < adapter->priv_num; i++) {
3335                 priv = adapter->priv[i];
3336                 mwifiex_abort_cac(priv);
3337         }
3338
3339         mwifiex_cancel_all_pending_cmd(adapter);
3340
3341         for (i = 0; i < adapter->priv_num; i++) {
3342                 priv = adapter->priv[i];
3343                 if (priv && priv->netdev) {
3344                         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3345                         if (netif_carrier_ok(priv->netdev))
3346                                 netif_carrier_off(priv->netdev);
3347                 }
3348         }
3349
3350         for (i = 0; i < retry_num; i++) {
3351                 if (!mwifiex_wmm_lists_empty(adapter) ||
3352                     !mwifiex_bypass_txlist_empty(adapter) ||
3353                     !skb_queue_empty(&adapter->tx_data_q))
3354                         usleep_range(10000, 15000);
3355                 else
3356                         break;
3357         }
3358
3359         if (!wowlan) {
3360                 mwifiex_dbg(adapter, ERROR,
3361                             "None of the WOWLAN triggers enabled\n");
3362                 ret = 0;
3363                 goto done;
3364         }
3365
3366         if (!sta_priv->media_connected && !wowlan->nd_config) {
3367                 mwifiex_dbg(adapter, ERROR,
3368                             "Can not configure WOWLAN in disconnected state\n");
3369                 ret = 0;
3370                 goto done;
3371         }
3372
3373         ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3374         if (ret) {
3375                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3376                 goto done;
3377         }
3378
3379         memset(&hs_cfg, 0, sizeof(hs_cfg));
3380         hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3381
3382         if (wowlan->nd_config) {
3383                 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3384                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3385                 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3386                                                   wowlan->nd_config);
3387         }
3388
3389         if (wowlan->disconnect) {
3390                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3391                 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3392         }
3393
3394         hs_cfg.is_invoke_hostcmd = false;
3395         hs_cfg.gpio = adapter->hs_cfg.gpio;
3396         hs_cfg.gap = adapter->hs_cfg.gap;
3397         ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3398                                     MWIFIEX_SYNC_CMD, &hs_cfg);
3399         if (ret)
3400                 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3401
3402 done:
3403         sta_priv->scan_aborting = false;
3404         return ret;
3405 }
3406
3407 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3408 {
3409         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3410         struct mwifiex_private *priv;
3411         struct mwifiex_ds_wakeup_reason wakeup_reason;
3412         struct cfg80211_wowlan_wakeup wakeup_report;
3413         int i;
3414         bool report_wakeup_reason = true;
3415
3416         for (i = 0; i < adapter->priv_num; i++) {
3417                 priv = adapter->priv[i];
3418                 if (priv && priv->netdev) {
3419                         if (!netif_carrier_ok(priv->netdev))
3420                                 netif_carrier_on(priv->netdev);
3421                         mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
3422                 }
3423         }
3424
3425         if (!wiphy->wowlan_config)
3426                 goto done;
3427
3428         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3429         mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3430                                   &wakeup_reason);
3431         memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3432
3433         wakeup_report.pattern_idx = -1;
3434
3435         switch (wakeup_reason.hs_wakeup_reason) {
3436         case NO_HSWAKEUP_REASON:
3437                 break;
3438         case BCAST_DATA_MATCHED:
3439                 break;
3440         case MCAST_DATA_MATCHED:
3441                 break;
3442         case UCAST_DATA_MATCHED:
3443                 break;
3444         case MASKTABLE_EVENT_MATCHED:
3445                 break;
3446         case NON_MASKABLE_EVENT_MATCHED:
3447                 if (wiphy->wowlan_config->disconnect)
3448                         wakeup_report.disconnect = true;
3449                 if (wiphy->wowlan_config->nd_config)
3450                         wakeup_report.net_detect = adapter->nd_info;
3451                 break;
3452         case NON_MASKABLE_CONDITION_MATCHED:
3453                 break;
3454         case MAGIC_PATTERN_MATCHED:
3455                 if (wiphy->wowlan_config->magic_pkt)
3456                         wakeup_report.magic_pkt = true;
3457                 if (wiphy->wowlan_config->n_patterns)
3458                         wakeup_report.pattern_idx = 1;
3459                 break;
3460         case GTK_REKEY_FAILURE:
3461                 if (wiphy->wowlan_config->gtk_rekey_failure)
3462                         wakeup_report.gtk_rekey_failure = true;
3463                 break;
3464         default:
3465                 report_wakeup_reason = false;
3466                 break;
3467         }
3468
3469         if (report_wakeup_reason)
3470                 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3471                                               GFP_KERNEL);
3472
3473 done:
3474         if (adapter->nd_info) {
3475                 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3476                         kfree(adapter->nd_info->matches[i]);
3477                 kfree(adapter->nd_info);
3478                 adapter->nd_info = NULL;
3479         }
3480
3481         return 0;
3482 }
3483
3484 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3485                                        bool enabled)
3486 {
3487         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3488
3489         device_set_wakeup_enable(adapter->dev, enabled);
3490 }
3491
3492 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3493                                   struct cfg80211_gtk_rekey_data *data)
3494 {
3495         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3496
3497         return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3498                                 HostCmd_ACT_GEN_SET, 0, data, true);
3499 }
3500
3501 #endif
3502
3503 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3504 {
3505         const u8 ipv4_mc_mac[] = {0x33, 0x33};
3506         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3507         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3508
3509         if ((byte_seq[0] & 0x01) &&
3510             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3511                 return PACKET_TYPE_UNICAST;
3512         else if (!memcmp(byte_seq, bc_mac, 4))
3513                 return PACKET_TYPE_BROADCAST;
3514         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3515                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3516                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3517                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3518                 return PACKET_TYPE_MULTICAST;
3519
3520         return 0;
3521 }
3522
3523 static int
3524 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3525                                 struct cfg80211_coalesce_rules *crule,
3526                                 struct mwifiex_coalesce_rule *mrule)
3527 {
3528         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3529         struct filt_field_param *param;
3530         int i;
3531
3532         mrule->max_coalescing_delay = crule->delay;
3533
3534         param = mrule->params;
3535
3536         for (i = 0; i < crule->n_patterns; i++) {
3537                 memset(byte_seq, 0, sizeof(byte_seq));
3538                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3539                                                   byte_seq,
3540                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3541                         mwifiex_dbg(priv->adapter, ERROR,
3542                                     "Pattern not supported\n");
3543                         return -EOPNOTSUPP;
3544                 }
3545
3546                 if (!crule->patterns[i].pkt_offset) {
3547                         u8 pkt_type;
3548
3549                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3550                         if (pkt_type && mrule->pkt_type) {
3551                                 mwifiex_dbg(priv->adapter, ERROR,
3552                                             "Multiple packet types not allowed\n");
3553                                 return -EOPNOTSUPP;
3554                         } else if (pkt_type) {
3555                                 mrule->pkt_type = pkt_type;
3556                                 continue;
3557                         }
3558                 }
3559
3560                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3561                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3562                 else
3563                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3564
3565                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3566                 memcpy(param->operand_byte_stream, byte_seq,
3567                        param->operand_len);
3568                 param->offset = crule->patterns[i].pkt_offset;
3569                 param++;
3570
3571                 mrule->num_of_fields++;
3572         }
3573
3574         if (!mrule->pkt_type) {
3575                 mwifiex_dbg(priv->adapter, ERROR,
3576                             "Packet type can not be determined\n");
3577                 return -EOPNOTSUPP;
3578         }
3579
3580         return 0;
3581 }
3582
3583 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3584                                          struct cfg80211_coalesce *coalesce)
3585 {
3586         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3587         int i, ret;
3588         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3589         struct mwifiex_private *priv =
3590                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3591
3592         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3593         if (!coalesce) {
3594                 mwifiex_dbg(adapter, WARN,
3595                             "Disable coalesce and reset all previous rules\n");
3596                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3597                                         HostCmd_ACT_GEN_SET, 0,
3598                                         &coalesce_cfg, true);
3599         }
3600
3601         coalesce_cfg.num_of_rules = coalesce->n_rules;
3602         for (i = 0; i < coalesce->n_rules; i++) {
3603                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3604                                                       &coalesce_cfg.rule[i]);
3605                 if (ret) {
3606                         mwifiex_dbg(adapter, ERROR,
3607                                     "Recheck the patterns provided for rule %d\n",
3608                                 i + 1);
3609                         return ret;
3610                 }
3611         }
3612
3613         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3614                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3615 }
3616
3617 /* cfg80211 ops handler for tdls_mgmt.
3618  * Function prepares TDLS action frame packets and forwards them to FW
3619  */
3620 static int
3621 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3622                            const u8 *peer, u8 action_code, u8 dialog_token,
3623                            u16 status_code, u32 peer_capability,
3624                            bool initiator, const u8 *extra_ies,
3625                            size_t extra_ies_len)
3626 {
3627         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3628         int ret;
3629
3630         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3631                 return -ENOTSUPP;
3632
3633         /* make sure we are in station mode and connected */
3634         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3635                 return -ENOTSUPP;
3636
3637         switch (action_code) {
3638         case WLAN_TDLS_SETUP_REQUEST:
3639                 mwifiex_dbg(priv->adapter, MSG,
3640                             "Send TDLS Setup Request to %pM status_code=%d\n",
3641                             peer, status_code);
3642                 mwifiex_add_auto_tdls_peer(priv, peer);
3643                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3644                                                    dialog_token, status_code,
3645                                                    extra_ies, extra_ies_len);
3646                 break;
3647         case WLAN_TDLS_SETUP_RESPONSE:
3648                 mwifiex_add_auto_tdls_peer(priv, peer);
3649                 mwifiex_dbg(priv->adapter, MSG,
3650                             "Send TDLS Setup Response to %pM status_code=%d\n",
3651                             peer, status_code);
3652                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3653                                                    dialog_token, status_code,
3654                                                    extra_ies, extra_ies_len);
3655                 break;
3656         case WLAN_TDLS_SETUP_CONFIRM:
3657                 mwifiex_dbg(priv->adapter, MSG,
3658                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3659                             status_code);
3660                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3661                                                    dialog_token, status_code,
3662                                                    extra_ies, extra_ies_len);
3663                 break;
3664         case WLAN_TDLS_TEARDOWN:
3665                 mwifiex_dbg(priv->adapter, MSG,
3666                             "Send TDLS Tear down to %pM\n", peer);
3667                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3668                                                    dialog_token, status_code,
3669                                                    extra_ies, extra_ies_len);
3670                 break;
3671         case WLAN_TDLS_DISCOVERY_REQUEST:
3672                 mwifiex_dbg(priv->adapter, MSG,
3673                             "Send TDLS Discovery Request to %pM\n", peer);
3674                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3675                                                    dialog_token, status_code,
3676                                                    extra_ies, extra_ies_len);
3677                 break;
3678         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3679                 mwifiex_dbg(priv->adapter, MSG,
3680                             "Send TDLS Discovery Response to %pM\n", peer);
3681                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3682                                                    dialog_token, status_code,
3683                                                    extra_ies, extra_ies_len);
3684                 break;
3685         default:
3686                 mwifiex_dbg(priv->adapter, ERROR,
3687                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3688                 ret = -EINVAL;
3689                 break;
3690         }
3691
3692         return ret;
3693 }
3694
3695 static int
3696 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3697                            const u8 *peer, enum nl80211_tdls_operation action)
3698 {
3699         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3700
3701         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3702             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3703                 return -ENOTSUPP;
3704
3705         /* make sure we are in station mode and connected */
3706         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3707                 return -ENOTSUPP;
3708
3709         mwifiex_dbg(priv->adapter, MSG,
3710                     "TDLS peer=%pM, oper=%d\n", peer, action);
3711
3712         switch (action) {
3713         case NL80211_TDLS_ENABLE_LINK:
3714                 action = MWIFIEX_TDLS_ENABLE_LINK;
3715                 break;
3716         case NL80211_TDLS_DISABLE_LINK:
3717                 action = MWIFIEX_TDLS_DISABLE_LINK;
3718                 break;
3719         case NL80211_TDLS_TEARDOWN:
3720                 /* shouldn't happen!*/
3721                 mwifiex_dbg(priv->adapter, ERROR,
3722                             "tdls_oper: teardown from driver not supported\n");
3723                 return -EINVAL;
3724         case NL80211_TDLS_SETUP:
3725                 /* shouldn't happen!*/
3726                 mwifiex_dbg(priv->adapter, ERROR,
3727                             "tdls_oper: setup from driver not supported\n");
3728                 return -EINVAL;
3729         case NL80211_TDLS_DISCOVERY_REQ:
3730                 /* shouldn't happen!*/
3731                 mwifiex_dbg(priv->adapter, ERROR,
3732                             "tdls_oper: discovery from driver not supported\n");
3733                 return -EINVAL;
3734         default:
3735                 mwifiex_dbg(priv->adapter, ERROR,
3736                             "tdls_oper: operation not supported\n");
3737                 return -ENOTSUPP;
3738         }
3739
3740         return mwifiex_tdls_oper(priv, peer, action);
3741 }
3742
3743 static int
3744 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3745                                   const u8 *addr, u8 oper_class,
3746                                   struct cfg80211_chan_def *chandef)
3747 {
3748         struct mwifiex_sta_node *sta_ptr;
3749         unsigned long flags;
3750         u16 chan;
3751         u8 second_chan_offset, band;
3752         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3753
3754         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3755         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3756         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3757
3758         if (!sta_ptr) {
3759                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3760                           __func__, addr);
3761                 return -ENOENT;
3762         }
3763
3764         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3765               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3766                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3767                 return -ENOENT;
3768         }
3769
3770         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3771             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3772                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3773                 return -EALREADY;
3774         }
3775
3776         chan = chandef->chan->hw_value;
3777         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3778         band = chandef->chan->band;
3779         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3780
3781         return 0;
3782 }
3783
3784 static void
3785 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3786                                          struct net_device *dev,
3787                                          const u8 *addr)
3788 {
3789         struct mwifiex_sta_node *sta_ptr;
3790         unsigned long flags;
3791         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3792
3793         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3794         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3795         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3796
3797         if (!sta_ptr) {
3798                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3799                           __func__, addr);
3800         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3801                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3802                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3803                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3804                           addr);
3805         } else
3806                 mwifiex_stop_tdls_cs(priv, addr);
3807 }
3808
3809 static int
3810 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3811                              const u8 *mac, struct station_parameters *params)
3812 {
3813         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3814
3815         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3816                 return -ENOTSUPP;
3817
3818         /* make sure we are in station mode and connected */
3819         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3820                 return -ENOTSUPP;
3821
3822         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3823 }
3824
3825 static int
3826 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3827                                 struct cfg80211_csa_settings *params)
3828 {
3829         struct ieee_types_header *chsw_ie;
3830         struct ieee80211_channel_sw_ie *channel_sw;
3831         int chsw_msec;
3832         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3833
3834         if (priv->adapter->scan_processing) {
3835                 mwifiex_dbg(priv->adapter, ERROR,
3836                             "radar detection: scan in process...\n");
3837                 return -EBUSY;
3838         }
3839
3840         if (priv->wdev.cac_started)
3841                 return -EBUSY;
3842
3843         if (cfg80211_chandef_identical(&params->chandef,
3844                                        &priv->dfs_chandef))
3845                 return -EINVAL;
3846
3847         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3848                                            params->beacon_csa.tail,
3849                                            params->beacon_csa.tail_len);
3850         if (!chsw_ie) {
3851                 mwifiex_dbg(priv->adapter, ERROR,
3852                             "Could not parse channel switch announcement IE\n");
3853                 return -EINVAL;
3854         }
3855
3856         channel_sw = (void *)(chsw_ie + 1);
3857         if (channel_sw->mode) {
3858                 if (netif_carrier_ok(priv->netdev))
3859                         netif_carrier_off(priv->netdev);
3860                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3861         }
3862
3863         if (mwifiex_del_mgmt_ies(priv))
3864                 mwifiex_dbg(priv->adapter, ERROR,
3865                             "Failed to delete mgmt IEs!\n");
3866
3867         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3868                 mwifiex_dbg(priv->adapter, ERROR,
3869                             "%s: setting mgmt ies failed\n", __func__);
3870                 return -EFAULT;
3871         }
3872
3873         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3874         memcpy(&priv->beacon_after, &params->beacon_after,
3875                sizeof(priv->beacon_after));
3876
3877         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3878         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3879                            msecs_to_jiffies(chsw_msec));
3880         return 0;
3881 }
3882
3883 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3884                                         struct wireless_dev *wdev,
3885                                         struct cfg80211_chan_def *chandef)
3886 {
3887         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3888         struct mwifiex_bssdescriptor *curr_bss;
3889         struct ieee80211_channel *chan;
3890         u8 second_chan_offset;
3891         enum nl80211_channel_type chan_type;
3892         enum nl80211_band band;
3893         int freq;
3894         int ret = -ENODATA;
3895
3896         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3897             cfg80211_chandef_valid(&priv->bss_chandef)) {
3898                 *chandef = priv->bss_chandef;
3899                 ret = 0;
3900         } else if (priv->media_connected) {
3901                 curr_bss = &priv->curr_bss_params.bss_descriptor;
3902                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3903                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3904                 chan = ieee80211_get_channel(wiphy, freq);
3905
3906                 if (priv->ht_param_present) {
3907                         second_chan_offset = priv->assoc_resp_ht_param &
3908                                         IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3909                         chan_type = mwifiex_sec_chan_offset_to_chan_type
3910                                                         (second_chan_offset);
3911                         cfg80211_chandef_create(chandef, chan, chan_type);
3912                 } else {
3913                         cfg80211_chandef_create(chandef, chan,
3914                                                 NL80211_CHAN_NO_HT);
3915                 }
3916                 ret = 0;
3917         }
3918
3919         return ret;
3920 }
3921
3922 static int
3923 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3924                                        struct net_device *dev,
3925                                        struct cfg80211_chan_def *chandef,
3926                                        u32 cac_time_ms)
3927 {
3928         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3929         struct mwifiex_radar_params radar_params;
3930
3931         if (priv->adapter->scan_processing) {
3932                 mwifiex_dbg(priv->adapter, ERROR,
3933                             "radar detection: scan already in process...\n");
3934                 return -EBUSY;
3935         }
3936
3937         if (!mwifiex_is_11h_active(priv)) {
3938                 mwifiex_dbg(priv->adapter, INFO,
3939                             "Enable 11h extensions in FW\n");
3940                 if (mwifiex_11h_activate(priv, true)) {
3941                         mwifiex_dbg(priv->adapter, ERROR,
3942                                     "Failed to activate 11h extensions!!");
3943                         return -1;
3944                 }
3945                 priv->state_11h.is_11h_active = true;
3946         }
3947
3948         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3949         radar_params.chandef = chandef;
3950         radar_params.cac_time_ms = cac_time_ms;
3951
3952         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3953
3954         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3955                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3956                 return -1;
3957
3958         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3959                            msecs_to_jiffies(cac_time_ms));
3960         return 0;
3961 }
3962
3963 static int
3964 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3965                                 const u8 *mac,
3966                                 struct station_parameters *params)
3967 {
3968         int ret;
3969         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3970
3971         /* we support change_station handler only for TDLS peers*/
3972         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3973                 return -ENOTSUPP;
3974
3975         /* make sure we are in station mode and connected */
3976         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3977                 return -ENOTSUPP;
3978
3979         priv->sta_params = params;
3980
3981         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3982         priv->sta_params = NULL;
3983
3984         return ret;
3985 }
3986
3987 /* station cfg80211 operations */
3988 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3989         .add_virtual_intf = mwifiex_add_virtual_intf,
3990         .del_virtual_intf = mwifiex_del_virtual_intf,
3991         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3992         .scan = mwifiex_cfg80211_scan,
3993         .connect = mwifiex_cfg80211_connect,
3994         .disconnect = mwifiex_cfg80211_disconnect,
3995         .get_station = mwifiex_cfg80211_get_station,
3996         .dump_station = mwifiex_cfg80211_dump_station,
3997         .dump_survey = mwifiex_cfg80211_dump_survey,
3998         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3999         .join_ibss = mwifiex_cfg80211_join_ibss,
4000         .leave_ibss = mwifiex_cfg80211_leave_ibss,
4001         .add_key = mwifiex_cfg80211_add_key,
4002         .del_key = mwifiex_cfg80211_del_key,
4003         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4004         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
4005         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4006         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4007         .set_default_key = mwifiex_cfg80211_set_default_key,
4008         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4009         .set_tx_power = mwifiex_cfg80211_set_tx_power,
4010         .get_tx_power = mwifiex_cfg80211_get_tx_power,
4011         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4012         .start_ap = mwifiex_cfg80211_start_ap,
4013         .stop_ap = mwifiex_cfg80211_stop_ap,
4014         .change_beacon = mwifiex_cfg80211_change_beacon,
4015         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4016         .set_antenna = mwifiex_cfg80211_set_antenna,
4017         .get_antenna = mwifiex_cfg80211_get_antenna,
4018         .del_station = mwifiex_cfg80211_del_station,
4019         .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4020         .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4021 #ifdef CONFIG_PM
4022         .suspend = mwifiex_cfg80211_suspend,
4023         .resume = mwifiex_cfg80211_resume,
4024         .set_wakeup = mwifiex_cfg80211_set_wakeup,
4025         .set_rekey_data = mwifiex_set_rekey_data,
4026 #endif
4027         .set_coalesce = mwifiex_cfg80211_set_coalesce,
4028         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4029         .tdls_oper = mwifiex_cfg80211_tdls_oper,
4030         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4031         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4032         .add_station = mwifiex_cfg80211_add_station,
4033         .change_station = mwifiex_cfg80211_change_station,
4034         .get_channel = mwifiex_cfg80211_get_channel,
4035         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4036         .channel_switch = mwifiex_cfg80211_channel_switch,
4037 };
4038
4039 #ifdef CONFIG_PM
4040 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4041         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4042                 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4043                 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4044         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4045         .pattern_min_len = 1,
4046         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4047         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4048         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4049 };
4050 #endif
4051
4052 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4053 {
4054         if (!alpha2 || strlen(alpha2) != 2)
4055                 return false;
4056
4057         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4058                 return true;
4059
4060         return false;
4061 }
4062
4063 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4064         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4065         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4066         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4067         .pattern_min_len = 1,
4068         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4069         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4070 };
4071
4072 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4073 {
4074         u32 n_channels_bg, n_channels_a = 0;
4075
4076         n_channels_bg = mwifiex_band_2ghz.n_channels;
4077
4078         if (adapter->config_bands & BAND_A)
4079                 n_channels_a = mwifiex_band_5ghz.n_channels;
4080
4081         adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
4082         adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
4083                                       adapter->num_in_chan_stats);
4084
4085         if (!adapter->chan_stats)
4086                 return -ENOMEM;
4087
4088         return 0;
4089 }
4090
4091 /*
4092  * This function registers the device with CFG802.11 subsystem.
4093  *
4094  * The function creates the wireless device/wiphy, populates it with
4095  * default parameters and handler function pointers, and finally
4096  * registers the device.
4097  */
4098
4099 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4100 {
4101         int ret;
4102         void *wdev_priv;
4103         struct wiphy *wiphy;
4104         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4105         u8 *country_code;
4106         u32 thr, retry;
4107
4108         /* create a new wiphy for use with cfg80211 */
4109         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4110                           sizeof(struct mwifiex_adapter *));
4111         if (!wiphy) {
4112                 mwifiex_dbg(adapter, ERROR,
4113                             "%s: creating new wiphy\n", __func__);
4114                 return -ENOMEM;
4115         }
4116         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4117         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4118         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4119         wiphy->max_remain_on_channel_duration = 5000;
4120         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4121                                  BIT(NL80211_IFTYPE_ADHOC) |
4122                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
4123                                  BIT(NL80211_IFTYPE_P2P_GO) |
4124                                  BIT(NL80211_IFTYPE_AP);
4125
4126         wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4127         if (adapter->config_bands & BAND_A)
4128                 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4129         else
4130                 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4131
4132         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4133                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4134         else if (adapter->is_hw_11ac_capable)
4135                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4136         else
4137                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4138         wiphy->n_iface_combinations = 1;
4139
4140         /* Initialize cipher suits */
4141         wiphy->cipher_suites = mwifiex_cipher_suites;
4142         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4143
4144         if (adapter->region_code)
4145                 wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS |
4146                                            REGULATORY_COUNTRY_IE_IGNORE;
4147
4148         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4149         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4150         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4151                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4152                         WIPHY_FLAG_AP_UAPSD |
4153                         WIPHY_FLAG_SUPPORTS_SCHED_SCAN |
4154                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4155                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4156                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
4157
4158         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4159                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4160                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4161
4162 #ifdef CONFIG_PM
4163         wiphy->wowlan = &mwifiex_wowlan_support;
4164 #endif
4165
4166         wiphy->coalesce = &mwifiex_coalesce_support;
4167
4168         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4169                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4170                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4171
4172         wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4173         wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4174         wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4175
4176         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4177         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4178
4179         wiphy->features |= NL80211_FEATURE_HT_IBSS |
4180                            NL80211_FEATURE_INACTIVITY_TIMER |
4181                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
4182                            NL80211_FEATURE_NEED_OBSS_SCAN |
4183                            NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4184                            NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4185                            NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4186
4187         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4188                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4189
4190         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4191                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4192
4193         /* Reserve space for mwifiex specific private data for BSS */
4194         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4195
4196         wiphy->reg_notifier = mwifiex_reg_notifier;
4197
4198         /* Set struct mwifiex_adapter pointer in wiphy_priv */
4199         wdev_priv = wiphy_priv(wiphy);
4200         *(unsigned long *)wdev_priv = (unsigned long)adapter;
4201
4202         set_wiphy_dev(wiphy, priv->adapter->dev);
4203
4204         ret = wiphy_register(wiphy);
4205         if (ret < 0) {
4206                 mwifiex_dbg(adapter, ERROR,
4207                             "%s: wiphy_register failed: %d\n", __func__, ret);
4208                 wiphy_free(wiphy);
4209                 return ret;
4210         }
4211
4212         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4213                 mwifiex_dbg(adapter, INFO,
4214                             "driver hint alpha2: %2.2s\n", reg_alpha2);
4215                 regulatory_hint(wiphy, reg_alpha2);
4216         } else {
4217                 if (adapter->region_code == 0x00) {
4218                         mwifiex_dbg(adapter, WARN, "Ignore world regulatory domain\n");
4219                 } else {
4220                         country_code =
4221                                 mwifiex_11d_code_2_region(adapter->region_code);
4222                         if (country_code &&
4223                             regulatory_hint(wiphy, country_code))
4224                                 mwifiex_dbg(priv->adapter, ERROR, "regulatory_hint() failed\n");
4225                 }
4226         }
4227
4228         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4229                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4230         wiphy->frag_threshold = thr;
4231         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4232                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4233         wiphy->rts_threshold = thr;
4234         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4235                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4236         wiphy->retry_short = (u8) retry;
4237         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4238                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4239         wiphy->retry_long = (u8) retry;
4240
4241         adapter->wiphy = wiphy;
4242         return ret;
4243 }