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