linux/drivers/net/wireless/marvell/mwifiex/cfg80211.c
<<
>>
Prefs
   1/*
   2 * Marvell Wireless LAN device driver: CFG80211
   3 *
   4 * Copyright (C) 2011-2014, Marvell International Ltd.
   5 *
   6 * This software file (the "File") is distributed by Marvell International
   7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8 * (the "License").  You may use, redistribute and/or modify this File in
   9 * accordance with the terms and conditions of the License, a copy of which
  10 * is available by writing to the Free Software Foundation, Inc.,
  11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13 *
  14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17 * this warranty disclaimer.
  18 */
  19
  20#include "cfg80211.h"
  21#include "main.h"
  22#include "11n.h"
  23#include "wmm.h"
  24
  25static char *reg_alpha2;
  26module_param(reg_alpha2, charp, 0);
  27
  28static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  29        {
  30                .max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
  31                                   BIT(NL80211_IFTYPE_P2P_GO) |
  32                                   BIT(NL80211_IFTYPE_P2P_CLIENT) |
  33                                   BIT(NL80211_IFTYPE_AP),
  34        },
  35};
  36
  37static const struct ieee80211_iface_combination
  38mwifiex_iface_comb_ap_sta = {
  39        .limits = mwifiex_ap_sta_limits,
  40        .num_different_channels = 1,
  41        .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  42        .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  43        .beacon_int_infra_match = true,
  44        .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  45                                BIT(NL80211_CHAN_WIDTH_20) |
  46                                BIT(NL80211_CHAN_WIDTH_40),
  47};
  48
  49static const struct ieee80211_iface_combination
  50mwifiex_iface_comb_ap_sta_vht = {
  51        .limits = mwifiex_ap_sta_limits,
  52        .num_different_channels = 1,
  53        .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  54        .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  55        .beacon_int_infra_match = true,
  56        .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  57                                BIT(NL80211_CHAN_WIDTH_20) |
  58                                BIT(NL80211_CHAN_WIDTH_40) |
  59                                BIT(NL80211_CHAN_WIDTH_80),
  60};
  61
  62static const struct
  63ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  64        .limits = mwifiex_ap_sta_limits,
  65        .num_different_channels = 2,
  66        .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  67        .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  68        .beacon_int_infra_match = true,
  69};
  70
  71/*
  72 * This function maps the nl802.11 channel type into driver channel type.
  73 *
  74 * The mapping is as follows -
  75 *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  76 *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  77 *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  78 *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  79 *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80 */
  81u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  82{
  83        switch (chan_type) {
  84        case NL80211_CHAN_NO_HT:
  85        case NL80211_CHAN_HT20:
  86                return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  87        case NL80211_CHAN_HT40PLUS:
  88                return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  89        case NL80211_CHAN_HT40MINUS:
  90                return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  91        default:
  92                return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  93        }
  94}
  95
  96/* This function maps IEEE HT secondary channel type to NL80211 channel type
  97 */
  98u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
  99{
 100        struct mwifiex_channel_band channel_band;
 101        int ret;
 102
 103        ret = mwifiex_get_chan_info(priv, &channel_band);
 104
 105        if (!ret) {
 106                switch (channel_band.band_config.chan_width) {
 107                case CHAN_BW_20MHZ:
 108                        if (IS_11N_ENABLED(priv))
 109                                return NL80211_CHAN_HT20;
 110                        else
 111                                return NL80211_CHAN_NO_HT;
 112                case CHAN_BW_40MHZ:
 113                        if (channel_band.band_config.chan2_offset ==
 114                            SEC_CHAN_ABOVE)
 115                                return NL80211_CHAN_HT40PLUS;
 116                        else
 117                                return NL80211_CHAN_HT40MINUS;
 118                default:
 119                        return NL80211_CHAN_HT20;
 120                }
 121        }
 122
 123        return NL80211_CHAN_HT20;
 124}
 125
 126/*
 127 * This function checks whether WEP is set.
 128 */
 129static int
 130mwifiex_is_alg_wep(u32 cipher)
 131{
 132        switch (cipher) {
 133        case WLAN_CIPHER_SUITE_WEP40:
 134        case WLAN_CIPHER_SUITE_WEP104:
 135                return 1;
 136        default:
 137                break;
 138        }
 139
 140        return 0;
 141}
 142
 143/*
 144 * This function retrieves the private structure from kernel wiphy structure.
 145 */
 146static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 147{
 148        return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 149}
 150
 151/*
 152 * CFG802.11 operation handler to delete a network key.
 153 */
 154static int
 155mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 156                         u8 key_index, bool pairwise, const u8 *mac_addr)
 157{
 158        struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 159        static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 160        const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 161
 162        if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 163                mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 164                return -EFAULT;
 165        }
 166
 167        mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 168        return 0;
 169}
 170
 171/*
 172 * This function forms an skb for management frame.
 173 */
 174static int
 175mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 176{
 177        u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 178        u16 pkt_len;
 179        u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 180
 181        pkt_len = len + ETH_ALEN;
 182
 183        skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 184                    MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 185        memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 186
 187        memcpy(skb_push(skb, sizeof(tx_control)),
 188               &tx_control, sizeof(tx_control));
 189
 190        memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 191
 192        /* Add packet data and address4 */
 193        skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
 194        skb_put_data(skb, addr, ETH_ALEN);
 195        skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
 196                     len - sizeof(struct ieee80211_hdr_3addr));
 197
 198        skb->priority = LOW_PRIO_TID;
 199        __net_timestamp(skb);
 200
 201        return 0;
 202}
 203
 204/*
 205 * CFG802.11 operation handler to transmit a management frame.
 206 */
 207static int
 208mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 209                         struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 210{
 211        const u8 *buf = params->buf;
 212        size_t len = params->len;
 213        struct sk_buff *skb;
 214        u16 pkt_len;
 215        const struct ieee80211_mgmt *mgmt;
 216        struct mwifiex_txinfo *tx_info;
 217        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 218
 219        if (!buf || !len) {
 220                mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 221                return -EFAULT;
 222        }
 223
 224        mgmt = (const struct ieee80211_mgmt *)buf;
 225        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 226            ieee80211_is_probe_resp(mgmt->frame_control)) {
 227                /* Since we support offload probe resp, we need to skip probe
 228                 * resp in AP or GO mode */
 229                mwifiex_dbg(priv->adapter, INFO,
 230                            "info: skip to send probe resp in AP or GO mode\n");
 231                return 0;
 232        }
 233
 234        pkt_len = len + ETH_ALEN;
 235        skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 236                            MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 237                            pkt_len + sizeof(pkt_len));
 238
 239        if (!skb) {
 240                mwifiex_dbg(priv->adapter, ERROR,
 241                            "allocate skb failed for management frame\n");
 242                return -ENOMEM;
 243        }
 244
 245        tx_info = MWIFIEX_SKB_TXCB(skb);
 246        memset(tx_info, 0, sizeof(*tx_info));
 247        tx_info->bss_num = priv->bss_num;
 248        tx_info->bss_type = priv->bss_type;
 249        tx_info->pkt_len = pkt_len;
 250
 251        mwifiex_form_mgmt_frame(skb, buf, len);
 252        *cookie = prandom_u32() | 1;
 253
 254        if (ieee80211_is_action(mgmt->frame_control))
 255                skb = mwifiex_clone_skb_for_tx_status(priv,
 256                                                      skb,
 257                                MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 258        else
 259                cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 260                                        GFP_ATOMIC);
 261
 262        mwifiex_queue_tx_pkt(priv, skb);
 263
 264        mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 265        return 0;
 266}
 267
 268/*
 269 * CFG802.11 operation handler to register a mgmt frame.
 270 */
 271static void
 272mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 273                                     struct wireless_dev *wdev,
 274                                     u16 frame_type, bool reg)
 275{
 276        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 277        u32 mask;
 278
 279        if (reg)
 280                mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 281        else
 282                mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 283
 284        if (mask != priv->mgmt_frame_mask) {
 285                priv->mgmt_frame_mask = mask;
 286                mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 287                                 HostCmd_ACT_GEN_SET, 0,
 288                                 &priv->mgmt_frame_mask, false);
 289                mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 290        }
 291}
 292
 293/*
 294 * CFG802.11 operation handler to remain on channel.
 295 */
 296static int
 297mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 298                                   struct wireless_dev *wdev,
 299                                   struct ieee80211_channel *chan,
 300                                   unsigned int duration, u64 *cookie)
 301{
 302        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 303        int ret;
 304
 305        if (!chan || !cookie) {
 306                mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 307                return -EINVAL;
 308        }
 309
 310        if (priv->roc_cfg.cookie) {
 311                mwifiex_dbg(priv->adapter, INFO,
 312                            "info: ongoing ROC, cookie = 0x%llx\n",
 313                            priv->roc_cfg.cookie);
 314                return -EBUSY;
 315        }
 316
 317        ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 318                                         duration);
 319
 320        if (!ret) {
 321                *cookie = prandom_u32() | 1;
 322                priv->roc_cfg.cookie = *cookie;
 323                priv->roc_cfg.chan = *chan;
 324
 325                cfg80211_ready_on_channel(wdev, *cookie, chan,
 326                                          duration, GFP_ATOMIC);
 327
 328                mwifiex_dbg(priv->adapter, INFO,
 329                            "info: ROC, cookie = 0x%llx\n", *cookie);
 330        }
 331
 332        return ret;
 333}
 334
 335/*
 336 * CFG802.11 operation handler to cancel remain on channel.
 337 */
 338static int
 339mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 340                                          struct wireless_dev *wdev, u64 cookie)
 341{
 342        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 343        int ret;
 344
 345        if (cookie != priv->roc_cfg.cookie)
 346                return -ENOENT;
 347
 348        ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 349                                         &priv->roc_cfg.chan, 0);
 350
 351        if (!ret) {
 352                cfg80211_remain_on_channel_expired(wdev, cookie,
 353                                                   &priv->roc_cfg.chan,
 354                                                   GFP_ATOMIC);
 355
 356                memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 357
 358                mwifiex_dbg(priv->adapter, INFO,
 359                            "info: cancel ROC, cookie = 0x%llx\n", cookie);
 360        }
 361
 362        return ret;
 363}
 364
 365/*
 366 * CFG802.11 operation handler to set Tx power.
 367 */
 368static int
 369mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 370                              struct wireless_dev *wdev,
 371                              enum nl80211_tx_power_setting type,
 372                              int mbm)
 373{
 374        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 375        struct mwifiex_private *priv;
 376        struct mwifiex_power_cfg power_cfg;
 377        int dbm = MBM_TO_DBM(mbm);
 378
 379        switch (type) {
 380        case NL80211_TX_POWER_FIXED:
 381                power_cfg.is_power_auto = 0;
 382                power_cfg.is_power_fixed = 1;
 383                power_cfg.power_level = dbm;
 384                break;
 385        case NL80211_TX_POWER_LIMITED:
 386                power_cfg.is_power_auto = 0;
 387                power_cfg.is_power_fixed = 0;
 388                power_cfg.power_level = dbm;
 389                break;
 390        case NL80211_TX_POWER_AUTOMATIC:
 391                power_cfg.is_power_auto = 1;
 392                break;
 393        }
 394
 395        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 396
 397        return mwifiex_set_tx_power(priv, &power_cfg);
 398}
 399
 400/*
 401 * CFG802.11 operation handler to get Tx power.
 402 */
 403static int
 404mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 405                              struct wireless_dev *wdev,
 406                              int *dbm)
 407{
 408        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 409        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 410                                                        MWIFIEX_BSS_ROLE_ANY);
 411        int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 412                                   HostCmd_ACT_GEN_GET, 0, NULL, true);
 413
 414        if (ret < 0)
 415                return ret;
 416
 417        /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 418        *dbm = priv->tx_power_level;
 419
 420        return 0;
 421}
 422
 423/*
 424 * CFG802.11 operation handler to set Power Save option.
 425 *
 426 * The timeout value, if provided, is currently ignored.
 427 */
 428static int
 429mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 430                                struct net_device *dev,
 431                                bool enabled, int timeout)
 432{
 433        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 434        u32 ps_mode;
 435
 436        if (timeout)
 437                mwifiex_dbg(priv->adapter, INFO,
 438                            "info: ignore timeout value for IEEE Power Save\n");
 439
 440        ps_mode = enabled;
 441
 442        return mwifiex_drv_set_power(priv, &ps_mode);
 443}
 444
 445/*
 446 * CFG802.11 operation handler to set the default network key.
 447 */
 448static int
 449mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 450                                 u8 key_index, bool unicast,
 451                                 bool multicast)
 452{
 453        struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 454
 455        /* Return if WEP key not configured */
 456        if (!priv->sec_info.wep_enabled)
 457                return 0;
 458
 459        if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 460                priv->wep_key_curr_index = key_index;
 461        } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 462                                      NULL, 0)) {
 463                mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 464                return -EFAULT;
 465        }
 466
 467        return 0;
 468}
 469
 470/*
 471 * CFG802.11 operation handler to add a network key.
 472 */
 473static int
 474mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 475                         u8 key_index, bool pairwise, const u8 *mac_addr,
 476                         struct key_params *params)
 477{
 478        struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 479        struct mwifiex_wep_key *wep_key;
 480        static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 481        const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 482
 483        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 484            (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 485             params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 486                if (params->key && params->key_len) {
 487                        wep_key = &priv->wep_key[key_index];
 488                        memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 489                        memcpy(wep_key->key_material, params->key,
 490                               params->key_len);
 491                        wep_key->key_index = key_index;
 492                        wep_key->key_length = params->key_len;
 493                        priv->sec_info.wep_enabled = 1;
 494                }
 495                return 0;
 496        }
 497
 498        if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 499                               key_index, peer_mac, 0)) {
 500                mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 501                return -EFAULT;
 502        }
 503
 504        return 0;
 505}
 506
 507/*
 508 * CFG802.11 operation handler to set default mgmt key.
 509 */
 510static int
 511mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
 512                                      struct net_device *netdev,
 513                                      u8 key_index)
 514{
 515        struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 516        struct mwifiex_ds_encrypt_key encrypt_key;
 517
 518        wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
 519
 520        memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 521        encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
 522        encrypt_key.key_index = key_index;
 523        encrypt_key.is_igtk_def_key = true;
 524        eth_broadcast_addr(encrypt_key.mac_addr);
 525
 526        return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 527                                HostCmd_ACT_GEN_SET, true, &encrypt_key, true);
 528}
 529
 530/*
 531 * This function sends domain information to the firmware.
 532 *
 533 * The following information are passed to the firmware -
 534 *      - Country codes
 535 *      - Sub bands (first channel, number of channels, maximum Tx power)
 536 */
 537int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 538{
 539        u8 no_of_triplet = 0;
 540        struct ieee80211_country_ie_triplet *t;
 541        u8 no_of_parsed_chan = 0;
 542        u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 543        u8 i, flag = 0;
 544        enum nl80211_band band;
 545        struct ieee80211_supported_band *sband;
 546        struct ieee80211_channel *ch;
 547        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 548        struct mwifiex_private *priv;
 549        struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 550
 551        /* Set country code */
 552        domain_info->country_code[0] = adapter->country_code[0];
 553        domain_info->country_code[1] = adapter->country_code[1];
 554        domain_info->country_code[2] = ' ';
 555
 556        band = mwifiex_band_to_radio_type(adapter->config_bands);
 557        if (!wiphy->bands[band]) {
 558                mwifiex_dbg(adapter, ERROR,
 559                            "11D: setting domain info in FW\n");
 560                return -1;
 561        }
 562
 563        sband = wiphy->bands[band];
 564
 565        for (i = 0; i < sband->n_channels ; i++) {
 566                ch = &sband->channels[i];
 567                if (ch->flags & IEEE80211_CHAN_DISABLED)
 568                        continue;
 569
 570                if (!flag) {
 571                        flag = 1;
 572                        first_chan = (u32) ch->hw_value;
 573                        next_chan = first_chan;
 574                        max_pwr = ch->max_power;
 575                        no_of_parsed_chan = 1;
 576                        continue;
 577                }
 578
 579                if (ch->hw_value == next_chan + 1 &&
 580                    ch->max_power == max_pwr) {
 581                        next_chan++;
 582                        no_of_parsed_chan++;
 583                } else {
 584                        t = &domain_info->triplet[no_of_triplet];
 585                        t->chans.first_channel = first_chan;
 586                        t->chans.num_channels = no_of_parsed_chan;
 587                        t->chans.max_power = max_pwr;
 588                        no_of_triplet++;
 589                        first_chan = (u32) ch->hw_value;
 590                        next_chan = first_chan;
 591                        max_pwr = ch->max_power;
 592                        no_of_parsed_chan = 1;
 593                }
 594        }
 595
 596        if (flag) {
 597                t = &domain_info->triplet[no_of_triplet];
 598                t->chans.first_channel = first_chan;
 599                t->chans.num_channels = no_of_parsed_chan;
 600                t->chans.max_power = max_pwr;
 601                no_of_triplet++;
 602        }
 603
 604        domain_info->no_of_triplet = no_of_triplet;
 605
 606        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 607
 608        if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 609                             HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 610                mwifiex_dbg(adapter, INFO,
 611                            "11D: setting domain info in FW\n");
 612                return -1;
 613        }
 614
 615        return 0;
 616}
 617
 618static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
 619{
 620        struct ieee80211_supported_band *sband;
 621        struct ieee80211_channel *chan;
 622        unsigned int i;
 623
 624        if (!wiphy->bands[NL80211_BAND_5GHZ])
 625                return;
 626        sband = wiphy->bands[NL80211_BAND_5GHZ];
 627
 628        for (i = 0; i < sband->n_channels; i++) {
 629                chan = &sband->channels[i];
 630                if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
 631                    (chan->flags & IEEE80211_CHAN_RADAR))
 632                        chan->flags |= IEEE80211_CHAN_NO_IR;
 633        }
 634}
 635
 636/*
 637 * CFG802.11 regulatory domain callback function.
 638 *
 639 * This function is called when the regulatory domain is changed due to the
 640 * following reasons -
 641 *      - Set by driver
 642 *      - Set by system core
 643 *      - Set by user
 644 *      - Set bt Country IE
 645 */
 646static void mwifiex_reg_notifier(struct wiphy *wiphy,
 647                                 struct regulatory_request *request)
 648{
 649        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 650        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 651                                                        MWIFIEX_BSS_ROLE_ANY);
 652        mwifiex_dbg(adapter, INFO,
 653                    "info: cfg80211 regulatory domain callback for %c%c\n",
 654                    request->alpha2[0], request->alpha2[1]);
 655        mwifiex_reg_apply_radar_flags(wiphy);
 656
 657        switch (request->initiator) {
 658        case NL80211_REGDOM_SET_BY_DRIVER:
 659        case NL80211_REGDOM_SET_BY_CORE:
 660        case NL80211_REGDOM_SET_BY_USER:
 661        case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 662                break;
 663        default:
 664                mwifiex_dbg(adapter, ERROR,
 665                            "unknown regdom initiator: %d\n",
 666                            request->initiator);
 667                return;
 668        }
 669
 670        /* Don't send world or same regdom info to firmware */
 671        if (strncmp(request->alpha2, "00", 2) &&
 672            strncmp(request->alpha2, adapter->country_code,
 673                    sizeof(request->alpha2))) {
 674                memcpy(adapter->country_code, request->alpha2,
 675                       sizeof(request->alpha2));
 676                mwifiex_send_domain_info_cmd_fw(wiphy);
 677                mwifiex_dnld_txpwr_table(priv);
 678        }
 679}
 680
 681/*
 682 * This function sets the fragmentation threshold.
 683 *
 684 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 685 * and MWIFIEX_FRAG_MAX_VALUE.
 686 */
 687static int
 688mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 689{
 690        if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 691            frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 692                frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 693
 694        return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 695                                HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 696                                &frag_thr, true);
 697}
 698
 699/*
 700 * This function sets the RTS threshold.
 701
 702 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 703 * and MWIFIEX_RTS_MAX_VALUE.
 704 */
 705static int
 706mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 707{
 708        if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 709                rts_thr = MWIFIEX_RTS_MAX_VALUE;
 710
 711        return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 712                                HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 713                                &rts_thr, true);
 714}
 715
 716/*
 717 * CFG802.11 operation handler to set wiphy parameters.
 718 *
 719 * This function can be used to set the RTS threshold and the
 720 * Fragmentation threshold of the driver.
 721 */
 722static int
 723mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 724{
 725        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 726        struct mwifiex_private *priv;
 727        struct mwifiex_uap_bss_param *bss_cfg;
 728        int ret;
 729
 730        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 731
 732        switch (priv->bss_role) {
 733        case MWIFIEX_BSS_ROLE_UAP:
 734                if (priv->bss_started) {
 735                        mwifiex_dbg(adapter, ERROR,
 736                                    "cannot change wiphy params when bss started");
 737                        return -EINVAL;
 738                }
 739
 740                bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 741                if (!bss_cfg)
 742                        return -ENOMEM;
 743
 744                mwifiex_set_sys_config_invalid_data(bss_cfg);
 745
 746                if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 747                        bss_cfg->rts_threshold = wiphy->rts_threshold;
 748                if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 749                        bss_cfg->frag_threshold = wiphy->frag_threshold;
 750                if (changed & WIPHY_PARAM_RETRY_LONG)
 751                        bss_cfg->retry_limit = wiphy->retry_long;
 752
 753                ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 754                                       HostCmd_ACT_GEN_SET,
 755                                       UAP_BSS_PARAMS_I, bss_cfg,
 756                                       false);
 757
 758                kfree(bss_cfg);
 759                if (ret) {
 760                        mwifiex_dbg(adapter, ERROR,
 761                                    "Failed to set wiphy phy params\n");
 762                        return ret;
 763                }
 764                break;
 765
 766        case MWIFIEX_BSS_ROLE_STA:
 767                if (priv->media_connected) {
 768                        mwifiex_dbg(adapter, ERROR,
 769                                    "cannot change wiphy params when connected");
 770                        return -EINVAL;
 771                }
 772                if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 773                        ret = mwifiex_set_rts(priv,
 774                                              wiphy->rts_threshold);
 775                        if (ret)
 776                                return ret;
 777                }
 778                if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 779                        ret = mwifiex_set_frag(priv,
 780                                               wiphy->frag_threshold);
 781                        if (ret)
 782                                return ret;
 783                }
 784                break;
 785        }
 786
 787        return 0;
 788}
 789
 790static int
 791mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 792{
 793        u16 mode = P2P_MODE_DISABLE;
 794
 795        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 796                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 797                return -1;
 798
 799        return 0;
 800}
 801
 802/*
 803 * This function initializes the functionalities for P2P client.
 804 * The P2P client initialization sequence is:
 805 * disable -> device -> client
 806 */
 807static int
 808mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 809{
 810        u16 mode;
 811
 812        if (mwifiex_cfg80211_deinit_p2p(priv))
 813                return -1;
 814
 815        mode = P2P_MODE_DEVICE;
 816        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 817                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 818                return -1;
 819
 820        mode = P2P_MODE_CLIENT;
 821        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 822                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 823                return -1;
 824
 825        return 0;
 826}
 827
 828/*
 829 * This function initializes the functionalities for P2P GO.
 830 * The P2P GO initialization sequence is:
 831 * disable -> device -> GO
 832 */
 833static int
 834mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 835{
 836        u16 mode;
 837
 838        if (mwifiex_cfg80211_deinit_p2p(priv))
 839                return -1;
 840
 841        mode = P2P_MODE_DEVICE;
 842        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 843                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 844                return -1;
 845
 846        mode = P2P_MODE_GO;
 847        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 848                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 849                return -1;
 850
 851        return 0;
 852}
 853
 854static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 855{
 856        struct mwifiex_adapter *adapter = priv->adapter;
 857        unsigned long flags;
 858
 859        priv->mgmt_frame_mask = 0;
 860        if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 861                             HostCmd_ACT_GEN_SET, 0,
 862                             &priv->mgmt_frame_mask, false)) {
 863                mwifiex_dbg(adapter, ERROR,
 864                            "could not unregister mgmt frame rx\n");
 865                return -1;
 866        }
 867
 868        mwifiex_deauthenticate(priv, NULL);
 869
 870        spin_lock_irqsave(&adapter->main_proc_lock, flags);
 871        adapter->main_locked = true;
 872        if (adapter->mwifiex_processing) {
 873                spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 874                flush_workqueue(adapter->workqueue);
 875        } else {
 876                spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 877        }
 878
 879        spin_lock_bh(&adapter->rx_proc_lock);
 880        adapter->rx_locked = true;
 881        if (adapter->rx_processing) {
 882                spin_unlock_bh(&adapter->rx_proc_lock);
 883                flush_workqueue(adapter->rx_workqueue);
 884        } else {
 885        spin_unlock_bh(&adapter->rx_proc_lock);
 886        }
 887
 888        mwifiex_free_priv(priv);
 889        priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 890        priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 891        priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 892
 893        return 0;
 894}
 895
 896static int
 897mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 898                             struct net_device *dev,
 899                             enum nl80211_iftype type)
 900{
 901        struct mwifiex_adapter *adapter = priv->adapter;
 902        unsigned long flags;
 903
 904        mwifiex_init_priv(priv);
 905
 906        priv->bss_mode = type;
 907        priv->wdev.iftype = type;
 908
 909        mwifiex_init_priv_params(priv, priv->netdev);
 910        priv->bss_started = 0;
 911
 912        switch (type) {
 913        case NL80211_IFTYPE_STATION:
 914        case NL80211_IFTYPE_ADHOC:
 915                priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 916                break;
 917        case NL80211_IFTYPE_P2P_CLIENT:
 918                priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 919                break;
 920        case NL80211_IFTYPE_P2P_GO:
 921                priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 922                break;
 923        case NL80211_IFTYPE_AP:
 924                priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 925                break;
 926        default:
 927                mwifiex_dbg(adapter, ERROR,
 928                            "%s: changing to %d not supported\n",
 929                            dev->name, type);
 930                return -EOPNOTSUPP;
 931        }
 932
 933        spin_lock_irqsave(&adapter->main_proc_lock, flags);
 934        adapter->main_locked = false;
 935        spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 936
 937        spin_lock_bh(&adapter->rx_proc_lock);
 938        adapter->rx_locked = false;
 939        spin_unlock_bh(&adapter->rx_proc_lock);
 940
 941        mwifiex_set_mac_address(priv, dev, false, NULL);
 942
 943        return 0;
 944}
 945
 946static int
 947mwifiex_change_vif_to_p2p(struct net_device *dev,
 948                          enum nl80211_iftype curr_iftype,
 949                          enum nl80211_iftype type,
 950                          struct vif_params *params)
 951{
 952        struct mwifiex_private *priv;
 953        struct mwifiex_adapter *adapter;
 954
 955        priv = mwifiex_netdev_get_priv(dev);
 956
 957        if (!priv)
 958                return -1;
 959
 960        adapter = priv->adapter;
 961
 962        if (adapter->curr_iface_comb.p2p_intf ==
 963            adapter->iface_limit.p2p_intf) {
 964                mwifiex_dbg(adapter, ERROR,
 965                            "cannot create multiple P2P ifaces\n");
 966                return -1;
 967        }
 968
 969        mwifiex_dbg(adapter, INFO,
 970                    "%s: changing role to p2p\n", dev->name);
 971
 972        if (mwifiex_deinit_priv_params(priv))
 973                return -1;
 974        if (mwifiex_init_new_priv_params(priv, dev, type))
 975                return -1;
 976
 977        switch (type) {
 978        case NL80211_IFTYPE_P2P_CLIENT:
 979                if (mwifiex_cfg80211_init_p2p_client(priv))
 980                        return -EFAULT;
 981                break;
 982        case NL80211_IFTYPE_P2P_GO:
 983                if (mwifiex_cfg80211_init_p2p_go(priv))
 984                        return -EFAULT;
 985                break;
 986        default:
 987                mwifiex_dbg(adapter, ERROR,
 988                            "%s: changing to %d not supported\n",
 989                            dev->name, type);
 990                return -EOPNOTSUPP;
 991        }
 992
 993        if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 994                             HostCmd_ACT_GEN_SET, 0, NULL, true))
 995                return -1;
 996
 997        if (mwifiex_sta_init_cmd(priv, false, false))
 998                return -1;
 999
1000        switch (curr_iftype) {
1001        case NL80211_IFTYPE_STATION:
1002        case NL80211_IFTYPE_ADHOC:
1003                adapter->curr_iface_comb.sta_intf--;
1004                break;
1005        case NL80211_IFTYPE_AP:
1006                adapter->curr_iface_comb.uap_intf--;
1007                break;
1008        default:
1009                break;
1010        }
1011
1012        adapter->curr_iface_comb.p2p_intf++;
1013        dev->ieee80211_ptr->iftype = type;
1014
1015        return 0;
1016}
1017
1018static int
1019mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1020                                enum nl80211_iftype curr_iftype,
1021                                enum nl80211_iftype type,
1022                                struct vif_params *params)
1023{
1024        struct mwifiex_private *priv;
1025        struct mwifiex_adapter *adapter;
1026
1027        priv = mwifiex_netdev_get_priv(dev);
1028
1029        if (!priv)
1030                return -1;
1031
1032        adapter = priv->adapter;
1033
1034        if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
1035             curr_iftype != NL80211_IFTYPE_P2P_GO) &&
1036            (adapter->curr_iface_comb.sta_intf ==
1037             adapter->iface_limit.sta_intf)) {
1038                mwifiex_dbg(adapter, ERROR,
1039                            "cannot create multiple station/adhoc ifaces\n");
1040                return -1;
1041        }
1042
1043        if (type == NL80211_IFTYPE_STATION)
1044                mwifiex_dbg(adapter, INFO,
1045                            "%s: changing role to station\n", dev->name);
1046        else
1047                mwifiex_dbg(adapter, INFO,
1048                            "%s: changing role to adhoc\n", dev->name);
1049
1050        if (mwifiex_deinit_priv_params(priv))
1051                return -1;
1052        if (mwifiex_init_new_priv_params(priv, dev, type))
1053                return -1;
1054        if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1055                             HostCmd_ACT_GEN_SET, 0, NULL, true))
1056                return -1;
1057        if (mwifiex_sta_init_cmd(priv, false, false))
1058                return -1;
1059
1060        switch (curr_iftype) {
1061        case NL80211_IFTYPE_P2P_CLIENT:
1062        case NL80211_IFTYPE_P2P_GO:
1063                adapter->curr_iface_comb.p2p_intf--;
1064                break;
1065        case NL80211_IFTYPE_AP:
1066                adapter->curr_iface_comb.uap_intf--;
1067                break;
1068        default:
1069                break;
1070        }
1071
1072        adapter->curr_iface_comb.sta_intf++;
1073        dev->ieee80211_ptr->iftype = type;
1074        return 0;
1075}
1076
1077static int
1078mwifiex_change_vif_to_ap(struct net_device *dev,
1079                         enum nl80211_iftype curr_iftype,
1080                         enum nl80211_iftype type,
1081                         struct vif_params *params)
1082{
1083        struct mwifiex_private *priv;
1084        struct mwifiex_adapter *adapter;
1085
1086        priv = mwifiex_netdev_get_priv(dev);
1087
1088        if (!priv)
1089                return -1;
1090
1091        adapter = priv->adapter;
1092
1093        if (adapter->curr_iface_comb.uap_intf ==
1094            adapter->iface_limit.uap_intf) {
1095                mwifiex_dbg(adapter, ERROR,
1096                            "cannot create multiple AP ifaces\n");
1097                return -1;
1098        }
1099
1100        mwifiex_dbg(adapter, INFO,
1101                    "%s: changing role to AP\n", dev->name);
1102
1103        if (mwifiex_deinit_priv_params(priv))
1104                return -1;
1105        if (mwifiex_init_new_priv_params(priv, dev, type))
1106                return -1;
1107        if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1108                             HostCmd_ACT_GEN_SET, 0, NULL, true))
1109                return -1;
1110        if (mwifiex_sta_init_cmd(priv, false, false))
1111                return -1;
1112
1113        switch (curr_iftype) {
1114        case NL80211_IFTYPE_P2P_CLIENT:
1115        case NL80211_IFTYPE_P2P_GO:
1116                adapter->curr_iface_comb.p2p_intf--;
1117                break;
1118        case NL80211_IFTYPE_STATION:
1119        case NL80211_IFTYPE_ADHOC:
1120                adapter->curr_iface_comb.sta_intf--;
1121                break;
1122        default:
1123                break;
1124        }
1125
1126        adapter->curr_iface_comb.uap_intf++;
1127        dev->ieee80211_ptr->iftype = type;
1128        return 0;
1129}
1130/*
1131 * CFG802.11 operation handler to change interface type.
1132 */
1133static int
1134mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1135                                     struct net_device *dev,
1136                                     enum nl80211_iftype type,
1137                                     struct vif_params *params)
1138{
1139        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1140        enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1141
1142        if (priv->scan_request) {
1143                mwifiex_dbg(priv->adapter, ERROR,
1144                            "change virtual interface: scan in process\n");
1145                return -EBUSY;
1146        }
1147
1148        switch (curr_iftype) {
1149        case NL80211_IFTYPE_ADHOC:
1150                switch (type) {
1151                case NL80211_IFTYPE_STATION:
1152                        priv->bss_mode = type;
1153                        priv->sec_info.authentication_mode =
1154                                                   NL80211_AUTHTYPE_OPEN_SYSTEM;
1155                        dev->ieee80211_ptr->iftype = type;
1156                        mwifiex_deauthenticate(priv, NULL);
1157                        return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1158                                                HostCmd_ACT_GEN_SET, 0, NULL,
1159                                                true);
1160                case NL80211_IFTYPE_P2P_CLIENT:
1161                case NL80211_IFTYPE_P2P_GO:
1162                        return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1163                                                         type, params);
1164                case NL80211_IFTYPE_AP:
1165                        return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1166                                                        params);
1167                case NL80211_IFTYPE_UNSPECIFIED:
1168                        mwifiex_dbg(priv->adapter, INFO,
1169                                    "%s: kept type as IBSS\n", dev->name);
1170                        /* fall through */
1171                case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1172                        return 0;
1173                default:
1174                        mwifiex_dbg(priv->adapter, ERROR,
1175                                    "%s: changing to %d not supported\n",
1176                                    dev->name, type);
1177                        return -EOPNOTSUPP;
1178                }
1179                break;
1180        case NL80211_IFTYPE_STATION:
1181                switch (type) {
1182                case NL80211_IFTYPE_ADHOC:
1183                        priv->bss_mode = type;
1184                        priv->sec_info.authentication_mode =
1185                                                   NL80211_AUTHTYPE_OPEN_SYSTEM;
1186                        dev->ieee80211_ptr->iftype = type;
1187                        mwifiex_deauthenticate(priv, NULL);
1188                        return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1189                                                HostCmd_ACT_GEN_SET, 0, NULL,
1190                                                true);
1191                case NL80211_IFTYPE_P2P_CLIENT:
1192                case NL80211_IFTYPE_P2P_GO:
1193                        return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1194                                                         type, params);
1195                case NL80211_IFTYPE_AP:
1196                        return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1197                                                        params);
1198                case NL80211_IFTYPE_UNSPECIFIED:
1199                        mwifiex_dbg(priv->adapter, INFO,
1200                                    "%s: kept type as STA\n", dev->name);
1201                        /* fall through */
1202                case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1203                        return 0;
1204                default:
1205                        mwifiex_dbg(priv->adapter, ERROR,
1206                                    "%s: changing to %d not supported\n",
1207                                    dev->name, type);
1208                        return -EOPNOTSUPP;
1209                }
1210                break;
1211        case NL80211_IFTYPE_AP:
1212                switch (type) {
1213                case NL80211_IFTYPE_ADHOC:
1214                        return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1215                                                               type, params);
1216                        break;
1217                case NL80211_IFTYPE_P2P_CLIENT:
1218                case NL80211_IFTYPE_P2P_GO:
1219                        return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1220                                                         type, params);
1221                case NL80211_IFTYPE_UNSPECIFIED:
1222                        mwifiex_dbg(priv->adapter, INFO,
1223                                    "%s: kept type as AP\n", dev->name);
1224                        /* fall through */
1225                case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1226                        return 0;
1227                default:
1228                        mwifiex_dbg(priv->adapter, ERROR,
1229                                    "%s: changing to %d not supported\n",
1230                                    dev->name, type);
1231                        return -EOPNOTSUPP;
1232                }
1233                break;
1234        case NL80211_IFTYPE_P2P_CLIENT:
1235        case NL80211_IFTYPE_P2P_GO:
1236                switch (type) {
1237                case NL80211_IFTYPE_STATION:
1238                        if (mwifiex_cfg80211_deinit_p2p(priv))
1239                                return -EFAULT;
1240                        priv->adapter->curr_iface_comb.p2p_intf--;
1241                        priv->adapter->curr_iface_comb.sta_intf++;
1242                        dev->ieee80211_ptr->iftype = type;
1243                        if (mwifiex_deinit_priv_params(priv))
1244                                return -1;
1245                        if (mwifiex_init_new_priv_params(priv, dev, type))
1246                                return -1;
1247                        if (mwifiex_sta_init_cmd(priv, false, false))
1248                                return -1;
1249                        break;
1250                case NL80211_IFTYPE_ADHOC:
1251                        if (mwifiex_cfg80211_deinit_p2p(priv))
1252                                return -EFAULT;
1253                        return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1254                                                               type, params);
1255                        break;
1256                case NL80211_IFTYPE_AP:
1257                        if (mwifiex_cfg80211_deinit_p2p(priv))
1258                                return -EFAULT;
1259                        return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1260                                                        params);
1261                case NL80211_IFTYPE_UNSPECIFIED:
1262                        mwifiex_dbg(priv->adapter, INFO,
1263                                    "%s: kept type as P2P\n", dev->name);
1264                        /* fall through */
1265                case NL80211_IFTYPE_P2P_CLIENT:
1266                case NL80211_IFTYPE_P2P_GO:
1267                        return 0;
1268                default:
1269                        mwifiex_dbg(priv->adapter, ERROR,
1270                                    "%s: changing to %d not supported\n",
1271                                    dev->name, type);
1272                        return -EOPNOTSUPP;
1273                }
1274                break;
1275        default:
1276                mwifiex_dbg(priv->adapter, ERROR,
1277                            "%s: unknown iftype: %d\n",
1278                            dev->name, dev->ieee80211_ptr->iftype);
1279                return -EOPNOTSUPP;
1280        }
1281
1282
1283        return 0;
1284}
1285
1286static void
1287mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo,
1288                     struct rate_info *rate)
1289{
1290        struct mwifiex_adapter *adapter = priv->adapter;
1291
1292        if (adapter->is_hw_11ac_capable) {
1293                /* bit[1-0]: 00=LG 01=HT 10=VHT */
1294                if (htinfo & BIT(0)) {
1295                        /* HT */
1296                        rate->mcs = rateinfo;
1297                        rate->flags |= RATE_INFO_FLAGS_MCS;
1298                }
1299                if (htinfo & BIT(1)) {
1300                        /* VHT */
1301                        rate->mcs = rateinfo & 0x0F;
1302                        rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1303                }
1304
1305                if (htinfo & (BIT(1) | BIT(0))) {
1306                        /* HT or VHT */
1307                        switch (htinfo & (BIT(3) | BIT(2))) {
1308                        case 0:
1309                                rate->bw = RATE_INFO_BW_20;
1310                                break;
1311                        case (BIT(2)):
1312                                rate->bw = RATE_INFO_BW_40;
1313                                break;
1314                        case (BIT(3)):
1315                                rate->bw = RATE_INFO_BW_80;
1316                                break;
1317                        case (BIT(3) | BIT(2)):
1318                                rate->bw = RATE_INFO_BW_160;
1319                                break;
1320                        }
1321
1322                        if (htinfo & BIT(4))
1323                                rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1324
1325                        if ((rateinfo >> 4) == 1)
1326                                rate->nss = 2;
1327                        else
1328                                rate->nss = 1;
1329                }
1330        } else {
1331                /*
1332                 * Bit 0 in htinfo indicates that current rate is 11n. Valid
1333                 * MCS index values for us are 0 to 15.
1334                 */
1335                if ((htinfo & BIT(0)) && (rateinfo < 16)) {
1336                        rate->mcs = rateinfo;
1337                        rate->flags |= RATE_INFO_FLAGS_MCS;
1338                        rate->bw = RATE_INFO_BW_20;
1339                        if (htinfo & BIT(1))
1340                                rate->bw = RATE_INFO_BW_40;
1341                        if (htinfo & BIT(2))
1342                                rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1343                }
1344        }
1345
1346        /* Decode legacy rates for non-HT. */
1347        if (!(htinfo & (BIT(0) | BIT(1)))) {
1348                /* Bitrates in multiples of 100kb/s. */
1349                static const int legacy_rates[] = {
1350                        [0] = 10,
1351                        [1] = 20,
1352                        [2] = 55,
1353                        [3] = 110,
1354                        [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */
1355                        [5] = 60,
1356                        [6] = 90,
1357                        [7] = 120,
1358                        [8] = 180,
1359                        [9] = 240,
1360                        [10] = 360,
1361                        [11] = 480,
1362                        [12] = 540,
1363                };
1364                if (rateinfo < ARRAY_SIZE(legacy_rates))
1365                        rate->legacy = legacy_rates[rateinfo];
1366        }
1367}
1368
1369/*
1370 * This function dumps the station information on a buffer.
1371 *
1372 * The following information are shown -
1373 *      - Total bytes transmitted
1374 *      - Total bytes received
1375 *      - Total packets transmitted
1376 *      - Total packets received
1377 *      - Signal quality level
1378 *      - Transmission rate
1379 */
1380static int
1381mwifiex_dump_station_info(struct mwifiex_private *priv,
1382                          struct mwifiex_sta_node *node,
1383                          struct station_info *sinfo)
1384{
1385        u32 rate;
1386
1387        sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1388                        BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1389                        BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1390                        BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1391
1392        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1393                if (!node)
1394                        return -ENOENT;
1395
1396                sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1397                                BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1398                sinfo->inactive_time =
1399                        jiffies_to_msecs(jiffies - node->stats.last_rx);
1400
1401                sinfo->signal = node->stats.rssi;
1402                sinfo->signal_avg = node->stats.rssi;
1403                sinfo->rx_bytes = node->stats.rx_bytes;
1404                sinfo->tx_bytes = node->stats.tx_bytes;
1405                sinfo->rx_packets = node->stats.rx_packets;
1406                sinfo->tx_packets = node->stats.tx_packets;
1407                sinfo->tx_failed = node->stats.tx_failed;
1408
1409                mwifiex_parse_htinfo(priv, priv->tx_rate,
1410                                     node->stats.last_tx_htinfo,
1411                                     &sinfo->txrate);
1412                sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1413
1414                return 0;
1415        }
1416
1417        /* Get signal information from the firmware */
1418        if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1419                             HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1420                mwifiex_dbg(priv->adapter, ERROR,
1421                            "failed to get signal information\n");
1422                return -EFAULT;
1423        }
1424
1425        if (mwifiex_drv_get_data_rate(priv, &rate)) {
1426                mwifiex_dbg(priv->adapter, ERROR,
1427                            "getting data rate error\n");
1428                return -EFAULT;
1429        }
1430
1431        /* Get DTIM period information from firmware */
1432        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1433                         HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1434                         &priv->dtim_period, true);
1435
1436        mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo,
1437                             &sinfo->txrate);
1438
1439        sinfo->signal_avg = priv->bcn_rssi_avg;
1440        sinfo->rx_bytes = priv->stats.rx_bytes;
1441        sinfo->tx_bytes = priv->stats.tx_bytes;
1442        sinfo->rx_packets = priv->stats.rx_packets;
1443        sinfo->tx_packets = priv->stats.tx_packets;
1444        sinfo->signal = priv->bcn_rssi_avg;
1445        /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1446        sinfo->txrate.legacy = rate * 5;
1447
1448        sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
1449        mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo,
1450                             &sinfo->rxrate);
1451
1452        if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1453                sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1454                sinfo->bss_param.flags = 0;
1455                if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1456                                                WLAN_CAPABILITY_SHORT_PREAMBLE)
1457                        sinfo->bss_param.flags |=
1458                                        BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1459                if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1460                                                WLAN_CAPABILITY_SHORT_SLOT_TIME)
1461                        sinfo->bss_param.flags |=
1462                                        BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1463                sinfo->bss_param.dtim_period = priv->dtim_period;
1464                sinfo->bss_param.beacon_interval =
1465                        priv->curr_bss_params.bss_descriptor.beacon_period;
1466        }
1467
1468        return 0;
1469}
1470
1471/*
1472 * CFG802.11 operation handler to get station information.
1473 *
1474 * This function only works in connected mode, and dumps the
1475 * requested station information, if available.
1476 */
1477static int
1478mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1479                             const u8 *mac, struct station_info *sinfo)
1480{
1481        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1482
1483        if (!priv->media_connected)
1484                return -ENOENT;
1485        if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1486                return -ENOENT;
1487
1488        return mwifiex_dump_station_info(priv, NULL, sinfo);
1489}
1490
1491/*
1492 * CFG802.11 operation handler to dump station information.
1493 */
1494static int
1495mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1496                              int idx, u8 *mac, struct station_info *sinfo)
1497{
1498        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1499        static struct mwifiex_sta_node *node;
1500
1501        if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1502            priv->media_connected && idx == 0) {
1503                ether_addr_copy(mac, priv->cfg_bssid);
1504                return mwifiex_dump_station_info(priv, NULL, sinfo);
1505        } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1506                mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1507                                 HostCmd_ACT_GEN_GET, 0, NULL, true);
1508
1509                if (node && (&node->list == &priv->sta_list)) {
1510                        node = NULL;
1511                        return -ENOENT;
1512                }
1513
1514                node = list_prepare_entry(node, &priv->sta_list, list);
1515                list_for_each_entry_continue(node, &priv->sta_list, list) {
1516                        ether_addr_copy(mac, node->mac_addr);
1517                        return mwifiex_dump_station_info(priv, node, sinfo);
1518                }
1519        }
1520
1521        return -ENOENT;
1522}
1523
1524static int
1525mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1526                             int idx, struct survey_info *survey)
1527{
1528        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1529        struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1530        enum nl80211_band band;
1531
1532        mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1533
1534        memset(survey, 0, sizeof(struct survey_info));
1535
1536        if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1537            priv->media_connected && idx == 0) {
1538                        u8 curr_bss_band = priv->curr_bss_params.band;
1539                        u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1540
1541                        band = mwifiex_band_to_radio_type(curr_bss_band);
1542                        survey->channel = ieee80211_get_channel(wiphy,
1543                                ieee80211_channel_to_frequency(chan, band));
1544
1545                        if (priv->bcn_nf_last) {
1546                                survey->filled = SURVEY_INFO_NOISE_DBM;
1547                                survey->noise = priv->bcn_nf_last;
1548                        }
1549                        return 0;
1550        }
1551
1552        if (idx >= priv->adapter->num_in_chan_stats)
1553                return -ENOENT;
1554
1555        if (!pchan_stats[idx].cca_scan_dur)
1556                return 0;
1557
1558        band = pchan_stats[idx].bandcfg;
1559        survey->channel = ieee80211_get_channel(wiphy,
1560            ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1561        survey->filled = SURVEY_INFO_NOISE_DBM |
1562                         SURVEY_INFO_TIME |
1563                         SURVEY_INFO_TIME_BUSY;
1564        survey->noise = pchan_stats[idx].noise;
1565        survey->time = pchan_stats[idx].cca_scan_dur;
1566        survey->time_busy = pchan_stats[idx].cca_busy_dur;
1567
1568        return 0;
1569}
1570
1571/* Supported rates to be advertised to the cfg80211 */
1572static struct ieee80211_rate mwifiex_rates[] = {
1573        {.bitrate = 10, .hw_value = 2, },
1574        {.bitrate = 20, .hw_value = 4, },
1575        {.bitrate = 55, .hw_value = 11, },
1576        {.bitrate = 110, .hw_value = 22, },
1577        {.bitrate = 60, .hw_value = 12, },
1578        {.bitrate = 90, .hw_value = 18, },
1579        {.bitrate = 120, .hw_value = 24, },
1580        {.bitrate = 180, .hw_value = 36, },
1581        {.bitrate = 240, .hw_value = 48, },
1582        {.bitrate = 360, .hw_value = 72, },
1583        {.bitrate = 480, .hw_value = 96, },
1584        {.bitrate = 540, .hw_value = 108, },
1585};
1586
1587/* Channel definitions to be advertised to cfg80211 */
1588static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1589        {.center_freq = 2412, .hw_value = 1, },
1590        {.center_freq = 2417, .hw_value = 2, },
1591        {.center_freq = 2422, .hw_value = 3, },
1592        {.center_freq = 2427, .hw_value = 4, },
1593        {.center_freq = 2432, .hw_value = 5, },
1594        {.center_freq = 2437, .hw_value = 6, },
1595        {.center_freq = 2442, .hw_value = 7, },
1596        {.center_freq = 2447, .hw_value = 8, },
1597        {.center_freq = 2452, .hw_value = 9, },
1598        {.center_freq = 2457, .hw_value = 10, },
1599        {.center_freq = 2462, .hw_value = 11, },
1600        {.center_freq = 2467, .hw_value = 12, },
1601        {.center_freq = 2472, .hw_value = 13, },
1602        {.center_freq = 2484, .hw_value = 14, },
1603};
1604
1605static struct ieee80211_supported_band mwifiex_band_2ghz = {
1606        .channels = mwifiex_channels_2ghz,
1607        .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1608        .bitrates = mwifiex_rates,
1609        .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1610};
1611
1612static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1613        {.center_freq = 5040, .hw_value = 8, },
1614        {.center_freq = 5060, .hw_value = 12, },
1615        {.center_freq = 5080, .hw_value = 16, },
1616        {.center_freq = 5170, .hw_value = 34, },
1617        {.center_freq = 5190, .hw_value = 38, },
1618        {.center_freq = 5210, .hw_value = 42, },
1619        {.center_freq = 5230, .hw_value = 46, },
1620        {.center_freq = 5180, .hw_value = 36, },
1621        {.center_freq = 5200, .hw_value = 40, },
1622        {.center_freq = 5220, .hw_value = 44, },
1623        {.center_freq = 5240, .hw_value = 48, },
1624        {.center_freq = 5260, .hw_value = 52, },
1625        {.center_freq = 5280, .hw_value = 56, },
1626        {.center_freq = 5300, .hw_value = 60, },
1627        {.center_freq = 5320, .hw_value = 64, },
1628        {.center_freq = 5500, .hw_value = 100, },
1629        {.center_freq = 5520, .hw_value = 104, },
1630        {.center_freq = 5540, .hw_value = 108, },
1631        {.center_freq = 5560, .hw_value = 112, },
1632        {.center_freq = 5580, .hw_value = 116, },
1633        {.center_freq = 5600, .hw_value = 120, },
1634        {.center_freq = 5620, .hw_value = 124, },
1635        {.center_freq = 5640, .hw_value = 128, },
1636        {.center_freq = 5660, .hw_value = 132, },
1637        {.center_freq = 5680, .hw_value = 136, },
1638        {.center_freq = 5700, .hw_value = 140, },
1639        {.center_freq = 5745, .hw_value = 149, },
1640        {.center_freq = 5765, .hw_value = 153, },
1641        {.center_freq = 5785, .hw_value = 157, },
1642        {.center_freq = 5805, .hw_value = 161, },
1643        {.center_freq = 5825, .hw_value = 165, },
1644};
1645
1646static struct ieee80211_supported_band mwifiex_band_5ghz = {
1647        .channels = mwifiex_channels_5ghz,
1648        .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1649        .bitrates = mwifiex_rates + 4,
1650        .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1651};
1652
1653
1654/* Supported crypto cipher suits to be advertised to cfg80211 */
1655static const u32 mwifiex_cipher_suites[] = {
1656        WLAN_CIPHER_SUITE_WEP40,
1657        WLAN_CIPHER_SUITE_WEP104,
1658        WLAN_CIPHER_SUITE_TKIP,
1659        WLAN_CIPHER_SUITE_CCMP,
1660        WLAN_CIPHER_SUITE_SMS4,
1661        WLAN_CIPHER_SUITE_AES_CMAC,
1662};
1663
1664/* Supported mgmt frame types to be advertised to cfg80211 */
1665static const struct ieee80211_txrx_stypes
1666mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1667        [NL80211_IFTYPE_STATION] = {
1668                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1669                      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1670                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1671                      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1672        },
1673        [NL80211_IFTYPE_AP] = {
1674                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1675                      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1676                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1677                      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1678        },
1679        [NL80211_IFTYPE_P2P_CLIENT] = {
1680                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1681                      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1682                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1683                      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1684        },
1685        [NL80211_IFTYPE_P2P_GO] = {
1686                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1687                      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1688                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1689                      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1690        },
1691};
1692
1693/*
1694 * CFG802.11 operation handler for setting bit rates.
1695 *
1696 * Function configures data rates to firmware using bitrate mask
1697 * provided by cfg80211.
1698 */
1699static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1700                                struct net_device *dev,
1701                                const u8 *peer,
1702                                const struct cfg80211_bitrate_mask *mask)
1703{
1704        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1705        u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1706        enum nl80211_band band;
1707        struct mwifiex_adapter *adapter = priv->adapter;
1708
1709        if (!priv->media_connected) {
1710                mwifiex_dbg(adapter, ERROR,
1711                            "Can not set Tx data rate in disconnected state\n");
1712                return -EINVAL;
1713        }
1714
1715        band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1716
1717        memset(bitmap_rates, 0, sizeof(bitmap_rates));
1718
1719        /* Fill HR/DSSS rates. */
1720        if (band == NL80211_BAND_2GHZ)
1721                bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1722
1723        /* Fill OFDM rates */
1724        if (band == NL80211_BAND_2GHZ)
1725                bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1726        else
1727                bitmap_rates[1] = mask->control[band].legacy;
1728
1729        /* Fill HT MCS rates */
1730        bitmap_rates[2] = mask->control[band].ht_mcs[0];
1731        if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1732                bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1733
1734       /* Fill VHT MCS rates */
1735        if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1736                bitmap_rates[10] = mask->control[band].vht_mcs[0];
1737                if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1738                        bitmap_rates[11] = mask->control[band].vht_mcs[1];
1739        }
1740
1741        return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1742                                HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1743}
1744
1745/*
1746 * CFG802.11 operation handler for connection quality monitoring.
1747 *
1748 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1749 * events to FW.
1750 */
1751static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1752                                                struct net_device *dev,
1753                                                s32 rssi_thold, u32 rssi_hyst)
1754{
1755        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1756        struct mwifiex_ds_misc_subsc_evt subsc_evt;
1757
1758        priv->cqm_rssi_thold = rssi_thold;
1759        priv->cqm_rssi_hyst = rssi_hyst;
1760
1761        memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1762        subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1763
1764        /* Subscribe/unsubscribe low and high rssi events */
1765        if (rssi_thold && rssi_hyst) {
1766                subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1767                subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1768                subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1769                subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1770                subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1771                return mwifiex_send_cmd(priv,
1772                                        HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1773                                        0, 0, &subsc_evt, true);
1774        } else {
1775                subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1776                return mwifiex_send_cmd(priv,
1777                                        HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1778                                        0, 0, &subsc_evt, true);
1779        }
1780
1781        return 0;
1782}
1783
1784/* cfg80211 operation handler for change_beacon.
1785 * Function retrieves and sets modified management IEs to FW.
1786 */
1787static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1788                                          struct net_device *dev,
1789                                          struct cfg80211_beacon_data *data)
1790{
1791        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1792        struct mwifiex_adapter *adapter = priv->adapter;
1793
1794        mwifiex_cancel_scan(adapter);
1795
1796        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1797                mwifiex_dbg(priv->adapter, ERROR,
1798                            "%s: bss_type mismatched\n", __func__);
1799                return -EINVAL;
1800        }
1801
1802        if (!priv->bss_started) {
1803                mwifiex_dbg(priv->adapter, ERROR,
1804                            "%s: bss not started\n", __func__);
1805                return -EINVAL;
1806        }
1807
1808        if (mwifiex_set_mgmt_ies(priv, data)) {
1809                mwifiex_dbg(priv->adapter, ERROR,
1810                            "%s: setting mgmt ies failed\n", __func__);
1811                return -EFAULT;
1812        }
1813
1814        return 0;
1815}
1816
1817/* cfg80211 operation handler for del_station.
1818 * Function deauthenticates station which value is provided in mac parameter.
1819 * If mac is NULL/broadcast, all stations in associated station list are
1820 * deauthenticated. If bss is not started or there are no stations in
1821 * associated stations list, no action is taken.
1822 */
1823static int
1824mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1825                             struct station_del_parameters *params)
1826{
1827        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1828        struct mwifiex_sta_node *sta_node;
1829        u8 deauth_mac[ETH_ALEN];
1830
1831        if (!priv->bss_started && priv->wdev.cac_started) {
1832                mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1833                mwifiex_abort_cac(priv);
1834        }
1835
1836        if (list_empty(&priv->sta_list) || !priv->bss_started)
1837                return 0;
1838
1839        if (!params->mac || is_broadcast_ether_addr(params->mac))
1840                return 0;
1841
1842        mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1843                    __func__, params->mac);
1844
1845        eth_zero_addr(deauth_mac);
1846
1847        spin_lock_bh(&priv->sta_list_spinlock);
1848        sta_node = mwifiex_get_sta_entry(priv, params->mac);
1849        if (sta_node)
1850                ether_addr_copy(deauth_mac, params->mac);
1851        spin_unlock_bh(&priv->sta_list_spinlock);
1852
1853        if (is_valid_ether_addr(deauth_mac)) {
1854                if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1855                                     HostCmd_ACT_GEN_SET, 0,
1856                                     deauth_mac, true))
1857                        return -1;
1858        }
1859
1860        return 0;
1861}
1862
1863static int
1864mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1865{
1866        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1867        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1868                                                        MWIFIEX_BSS_ROLE_ANY);
1869        struct mwifiex_ds_ant_cfg ant_cfg;
1870
1871        if (!tx_ant || !rx_ant)
1872                return -EOPNOTSUPP;
1873
1874        if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1875                /* Not a MIMO chip. User should provide specific antenna number
1876                 * for Tx/Rx path or enable all antennas for diversity
1877                 */
1878                if (tx_ant != rx_ant)
1879                        return -EOPNOTSUPP;
1880
1881                if ((tx_ant & (tx_ant - 1)) &&
1882                    (tx_ant != BIT(adapter->number_of_antenna) - 1))
1883                        return -EOPNOTSUPP;
1884
1885                if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1886                    (priv->adapter->number_of_antenna > 1)) {
1887                        tx_ant = RF_ANTENNA_AUTO;
1888                        rx_ant = RF_ANTENNA_AUTO;
1889                }
1890        } else {
1891                struct ieee80211_sta_ht_cap *ht_info;
1892                int rx_mcs_supp;
1893                enum nl80211_band band;
1894
1895                if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1896                        adapter->user_dev_mcs_support = HT_STREAM_1X1;
1897                        if (adapter->is_hw_11ac_capable)
1898                                adapter->usr_dot_11ac_mcs_support =
1899                                                MWIFIEX_11AC_MCS_MAP_1X1;
1900                } else {
1901                        adapter->user_dev_mcs_support = HT_STREAM_2X2;
1902                        if (adapter->is_hw_11ac_capable)
1903                                adapter->usr_dot_11ac_mcs_support =
1904                                                MWIFIEX_11AC_MCS_MAP_2X2;
1905                }
1906
1907                for (band = 0; band < NUM_NL80211_BANDS; band++) {
1908                        if (!adapter->wiphy->bands[band])
1909                                continue;
1910
1911                        ht_info = &adapter->wiphy->bands[band]->ht_cap;
1912                        rx_mcs_supp =
1913                                GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1914                        memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1915                        memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1916                }
1917        }
1918
1919        ant_cfg.tx_ant = tx_ant;
1920        ant_cfg.rx_ant = rx_ant;
1921
1922        return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1923                                HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1924}
1925
1926static int
1927mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1928{
1929        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1930        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1931                                                        MWIFIEX_BSS_ROLE_ANY);
1932        mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1933                         HostCmd_ACT_GEN_GET, 0, NULL, true);
1934
1935        *tx_ant = priv->tx_ant;
1936        *rx_ant = priv->rx_ant;
1937
1938        return 0;
1939}
1940
1941/* cfg80211 operation handler for stop ap.
1942 * Function stops BSS running at uAP interface.
1943 */
1944static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1945{
1946        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1947
1948        mwifiex_abort_cac(priv);
1949
1950        if (mwifiex_del_mgmt_ies(priv))
1951                mwifiex_dbg(priv->adapter, ERROR,
1952                            "Failed to delete mgmt IEs!\n");
1953
1954        priv->ap_11n_enabled = 0;
1955        memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1956
1957        if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1958                             HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1959                mwifiex_dbg(priv->adapter, ERROR,
1960                            "Failed to stop the BSS\n");
1961                return -1;
1962        }
1963
1964        if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1965                             HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1966                mwifiex_dbg(priv->adapter, ERROR,
1967                            "Failed to reset BSS\n");
1968                return -1;
1969        }
1970
1971        if (netif_carrier_ok(priv->netdev))
1972                netif_carrier_off(priv->netdev);
1973        mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1974
1975        return 0;
1976}
1977
1978/* cfg80211 operation handler for start_ap.
1979 * Function sets beacon period, DTIM period, SSID and security into
1980 * AP config structure.
1981 * AP is configured with these settings and BSS is started.
1982 */
1983static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1984                                     struct net_device *dev,
1985                                     struct cfg80211_ap_settings *params)
1986{
1987        struct mwifiex_uap_bss_param *bss_cfg;
1988        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1989
1990        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1991                return -1;
1992
1993        bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1994        if (!bss_cfg)
1995                return -ENOMEM;
1996
1997        mwifiex_set_sys_config_invalid_data(bss_cfg);
1998
1999        if (params->beacon_interval)
2000                bss_cfg->beacon_period = params->beacon_interval;
2001        if (params->dtim_period)
2002                bss_cfg->dtim_period = params->dtim_period;
2003
2004        if (params->ssid && params->ssid_len) {
2005                memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2006                bss_cfg->ssid.ssid_len = params->ssid_len;
2007        }
2008        if (params->inactivity_timeout > 0) {
2009                /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2010                bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2011                bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2012        }
2013
2014        switch (params->hidden_ssid) {
2015        case NL80211_HIDDEN_SSID_NOT_IN_USE:
2016                bss_cfg->bcast_ssid_ctl = 1;
2017                break;
2018        case NL80211_HIDDEN_SSID_ZERO_LEN:
2019                bss_cfg->bcast_ssid_ctl = 0;
2020                break;
2021        case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2022                bss_cfg->bcast_ssid_ctl = 2;
2023                break;
2024        default:
2025                kfree(bss_cfg);
2026                return -EINVAL;
2027        }
2028
2029        mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2030        mwifiex_set_uap_rates(bss_cfg, params);
2031
2032        if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2033                mwifiex_dbg(priv->adapter, ERROR,
2034                            "Failed to parse security parameters!\n");
2035                goto out;
2036        }
2037
2038        mwifiex_set_ht_params(priv, bss_cfg, params);
2039
2040        if (priv->adapter->is_hw_11ac_capable) {
2041                mwifiex_set_vht_params(priv, bss_cfg, params);
2042                mwifiex_set_vht_width(priv, params->chandef.width,
2043                                      priv->ap_11ac_enabled);
2044        }
2045
2046        if (priv->ap_11ac_enabled)
2047                mwifiex_set_11ac_ba_params(priv);
2048        else
2049                mwifiex_set_ba_params(priv);
2050
2051        mwifiex_set_wmm_params(priv, bss_cfg, params);
2052
2053        if (mwifiex_is_11h_active(priv))
2054                mwifiex_set_tpc_params(priv, bss_cfg, params);
2055
2056        if (mwifiex_is_11h_active(priv) &&
2057            !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2058                                           priv->bss_mode)) {
2059                mwifiex_dbg(priv->adapter, INFO,
2060                            "Disable 11h extensions in FW\n");
2061                if (mwifiex_11h_activate(priv, false)) {
2062                        mwifiex_dbg(priv->adapter, ERROR,
2063                                    "Failed to disable 11h extensions!!");
2064                        goto out;
2065                }
2066                priv->state_11h.is_11h_active = false;
2067        }
2068
2069        mwifiex_config_uap_11d(priv, &params->beacon);
2070
2071        if (mwifiex_config_start_uap(priv, bss_cfg)) {
2072                mwifiex_dbg(priv->adapter, ERROR,
2073                            "Failed to start AP\n");
2074                goto out;
2075        }
2076
2077        if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2078                goto out;
2079
2080        if (!netif_carrier_ok(priv->netdev))
2081                netif_carrier_on(priv->netdev);
2082        mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2083
2084        memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2085        kfree(bss_cfg);
2086        return 0;
2087
2088out:
2089        kfree(bss_cfg);
2090        return -1;
2091}
2092
2093/*
2094 * CFG802.11 operation handler for disconnection request.
2095 *
2096 * This function does not work when there is already a disconnection
2097 * procedure going on.
2098 */
2099static int
2100mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2101                            u16 reason_code)
2102{
2103        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2104
2105        if (!mwifiex_stop_bg_scan(priv))
2106                cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2107
2108        if (mwifiex_deauthenticate(priv, NULL))
2109                return -EFAULT;
2110
2111        eth_zero_addr(priv->cfg_bssid);
2112        priv->hs2_enabled = false;
2113
2114        return 0;
2115}
2116
2117/*
2118 * This function informs the CFG802.11 subsystem of a new IBSS.
2119 *
2120 * The following information are sent to the CFG802.11 subsystem
2121 * to register the new IBSS. If we do not register the new IBSS,
2122 * a kernel panic will result.
2123 *      - SSID
2124 *      - SSID length
2125 *      - BSSID
2126 *      - Channel
2127 */
2128static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2129{
2130        struct ieee80211_channel *chan;
2131        struct mwifiex_bss_info bss_info;
2132        struct cfg80211_bss *bss;
2133        int ie_len;
2134        u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2135        enum nl80211_band band;
2136
2137        if (mwifiex_get_bss_info(priv, &bss_info))
2138                return -1;
2139
2140        ie_buf[0] = WLAN_EID_SSID;
2141        ie_buf[1] = bss_info.ssid.ssid_len;
2142
2143        memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2144               &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2145        ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2146
2147        band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2148        chan = ieee80211_get_channel(priv->wdev.wiphy,
2149                        ieee80211_channel_to_frequency(bss_info.bss_chan,
2150                                                       band));
2151
2152        bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2153                                  CFG80211_BSS_FTYPE_UNKNOWN,
2154                                  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2155                                  0, ie_buf, ie_len, 0, GFP_KERNEL);
2156        if (bss) {
2157                cfg80211_put_bss(priv->wdev.wiphy, bss);
2158                ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2159        }
2160
2161        return 0;
2162}
2163
2164/*
2165 * This function connects with a BSS.
2166 *
2167 * This function handles both Infra and Ad-Hoc modes. It also performs
2168 * validity checking on the provided parameters, disconnects from the
2169 * current BSS (if any), sets up the association/scan parameters,
2170 * including security settings, and performs specific SSID scan before
2171 * trying to connect.
2172 *
2173 * For Infra mode, the function returns failure if the specified SSID
2174 * is not found in scan table. However, for Ad-Hoc mode, it can create
2175 * the IBSS if it does not exist. On successful completion in either case,
2176 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2177 */
2178static int
2179mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2180                       const u8 *ssid, const u8 *bssid, int mode,
2181                       struct ieee80211_channel *channel,
2182                       struct cfg80211_connect_params *sme, bool privacy)
2183{
2184        struct cfg80211_ssid req_ssid;
2185        int ret, auth_type = 0;
2186        struct cfg80211_bss *bss = NULL;
2187        u8 is_scanning_required = 0;
2188
2189        memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2190
2191        req_ssid.ssid_len = ssid_len;
2192        if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2193                mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2194                return -EINVAL;
2195        }
2196
2197        memcpy(req_ssid.ssid, ssid, ssid_len);
2198        if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2199                mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2200                return -EINVAL;
2201        }
2202
2203        /* As this is new association, clear locally stored
2204         * keys and security related flags */
2205        priv->sec_info.wpa_enabled = false;
2206        priv->sec_info.wpa2_enabled = false;
2207        priv->wep_key_curr_index = 0;
2208        priv->sec_info.encryption_mode = 0;
2209        priv->sec_info.is_authtype_auto = 0;
2210        ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2211
2212        if (mode == NL80211_IFTYPE_ADHOC) {
2213                u16 enable = true;
2214
2215                /* set ibss coalescing_status */
2216                ret = mwifiex_send_cmd(
2217                                priv,
2218                                HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2219                                HostCmd_ACT_GEN_SET, 0, &enable, true);
2220                if (ret)
2221                        return ret;
2222
2223                /* "privacy" is set only for ad-hoc mode */
2224                if (privacy) {
2225                        /*
2226                         * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2227                         * the firmware can find a matching network from the
2228                         * scan. The cfg80211 does not give us the encryption
2229                         * mode at this stage so just setting it to WEP here.
2230                         */
2231                        priv->sec_info.encryption_mode =
2232                                        WLAN_CIPHER_SUITE_WEP104;
2233                        priv->sec_info.authentication_mode =
2234                                        NL80211_AUTHTYPE_OPEN_SYSTEM;
2235                }
2236
2237                goto done;
2238        }
2239
2240        /* Now handle infra mode. "sme" is valid for infra mode only */
2241        if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2242                auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2243                priv->sec_info.is_authtype_auto = 1;
2244        } else {
2245                auth_type = sme->auth_type;
2246        }
2247
2248        if (sme->crypto.n_ciphers_pairwise) {
2249                priv->sec_info.encryption_mode =
2250                                                sme->crypto.ciphers_pairwise[0];
2251                priv->sec_info.authentication_mode = auth_type;
2252        }
2253
2254        if (sme->crypto.cipher_group) {
2255                priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2256                priv->sec_info.authentication_mode = auth_type;
2257        }
2258        if (sme->ie)
2259                ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2260
2261        if (sme->key) {
2262                if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2263                        mwifiex_dbg(priv->adapter, INFO,
2264                                    "info: setting wep encryption\t"
2265                                    "with key len %d\n", sme->key_len);
2266                        priv->wep_key_curr_index = sme->key_idx;
2267                        ret = mwifiex_set_encode(priv, NULL, sme->key,
2268                                                 sme->key_len, sme->key_idx,
2269                                                 NULL, 0);
2270                }
2271        }
2272done:
2273        /*
2274         * Scan entries are valid for some time (15 sec). So we can save one
2275         * active scan time if we just try cfg80211_get_bss first. If it fails
2276         * then request scan and cfg80211_get_bss() again for final output.
2277         */
2278        while (1) {
2279                if (is_scanning_required) {
2280                        /* Do specific SSID scanning */
2281                        if (mwifiex_request_scan(priv, &req_ssid)) {
2282                                mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2283                                return -EFAULT;
2284                        }
2285                }
2286
2287                /* Find the BSS we want using available scan results */
2288                if (mode == NL80211_IFTYPE_ADHOC)
2289                        bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2290                                               bssid, ssid, ssid_len,
2291                                               IEEE80211_BSS_TYPE_IBSS,
2292                                               IEEE80211_PRIVACY_ANY);
2293                else
2294                        bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2295                                               bssid, ssid, ssid_len,
2296                                               IEEE80211_BSS_TYPE_ESS,
2297                                               IEEE80211_PRIVACY_ANY);
2298
2299                if (!bss) {
2300                        if (is_scanning_required) {
2301                                mwifiex_dbg(priv->adapter, MSG,
2302                                            "assoc: requested bss not found in scan results\n");
2303                                break;
2304                        }
2305                        is_scanning_required = 1;
2306                } else {
2307                        mwifiex_dbg(priv->adapter, MSG,
2308                                    "info: trying to associate to '%.*s' bssid %pM\n",
2309                                    req_ssid.ssid_len, (char *)req_ssid.ssid,
2310                                    bss->bssid);
2311                        memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2312                        break;
2313                }
2314        }
2315
2316        ret = mwifiex_bss_start(priv, bss, &req_ssid);
2317        if (ret)
2318                return ret;
2319
2320        if (mode == NL80211_IFTYPE_ADHOC) {
2321                /* Inform the BSS information to kernel, otherwise
2322                 * kernel will give a panic after successful assoc */
2323                if (mwifiex_cfg80211_inform_ibss_bss(priv))
2324                        return -EFAULT;
2325        }
2326
2327        return ret;
2328}
2329
2330/*
2331 * CFG802.11 operation handler for association request.
2332 *
2333 * This function does not work when the current mode is set to Ad-Hoc, or
2334 * when there is already an association procedure going on. The given BSS
2335 * information is used to associate.
2336 */
2337static int
2338mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2339                         struct cfg80211_connect_params *sme)
2340{
2341        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2342        struct mwifiex_adapter *adapter = priv->adapter;
2343        int ret;
2344
2345        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2346                mwifiex_dbg(adapter, ERROR,
2347                            "%s: reject infra assoc request in non-STA role\n",
2348                            dev->name);
2349                return -EINVAL;
2350        }
2351
2352        if (priv->wdev.current_bss) {
2353                mwifiex_dbg(adapter, ERROR,
2354                            "%s: already connected\n", dev->name);
2355                return -EALREADY;
2356        }
2357
2358        if (priv->scan_block)
2359                priv->scan_block = false;
2360
2361        if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2362            test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2363                mwifiex_dbg(adapter, ERROR,
2364                            "%s: Ignore connection.\t"
2365                            "Card removed or FW in bad state\n",
2366                            dev->name);
2367                return -EFAULT;
2368        }
2369
2370        mwifiex_dbg(adapter, INFO,
2371                    "info: Trying to associate to %.*s and bssid %pM\n",
2372                    (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2373
2374        if (!mwifiex_stop_bg_scan(priv))
2375                cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2376
2377        ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2378                                     priv->bss_mode, sme->channel, sme, 0);
2379        if (!ret) {
2380                cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2381                                        NULL, 0, WLAN_STATUS_SUCCESS,
2382                                        GFP_KERNEL);
2383                mwifiex_dbg(priv->adapter, MSG,
2384                            "info: associated to bssid %pM successfully\n",
2385                            priv->cfg_bssid);
2386                if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2387                    priv->adapter->auto_tdls &&
2388                    priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2389                        mwifiex_setup_auto_tdls_timer(priv);
2390        } else {
2391                mwifiex_dbg(priv->adapter, ERROR,
2392                            "info: association to bssid %pM failed\n",
2393                            priv->cfg_bssid);
2394                eth_zero_addr(priv->cfg_bssid);
2395
2396                if (ret > 0)
2397                        cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2398                                                NULL, 0, NULL, 0, ret,
2399                                                GFP_KERNEL);
2400                else
2401                        cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2402                                                NULL, 0, NULL, 0,
2403                                                WLAN_STATUS_UNSPECIFIED_FAILURE,
2404                                                GFP_KERNEL);
2405        }
2406
2407        return 0;
2408}
2409
2410/*
2411 * This function sets following parameters for ibss network.
2412 *  -  channel
2413 *  -  start band
2414 *  -  11n flag
2415 *  -  secondary channel offset
2416 */
2417static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2418                                   struct cfg80211_ibss_params *params)
2419{
2420        struct mwifiex_adapter *adapter = priv->adapter;
2421        int index = 0, i;
2422        u8 config_bands = 0;
2423
2424        if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2425                if (!params->basic_rates) {
2426                        config_bands = BAND_B | BAND_G;
2427                } else {
2428                        for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2429                                /*
2430                                 * Rates below 6 Mbps in the table are CCK
2431                                 * rates; 802.11b and from 6 they are OFDM;
2432                                 * 802.11G
2433                                 */
2434                                if (mwifiex_rates[i].bitrate == 60) {
2435                                        index = 1 << i;
2436                                        break;
2437                                }
2438                        }
2439
2440                        if (params->basic_rates < index) {
2441                                config_bands = BAND_B;
2442                        } else {
2443                                config_bands = BAND_G;
2444                                if (params->basic_rates % index)
2445                                        config_bands |= BAND_B;
2446                        }
2447                }
2448
2449                if (cfg80211_get_chandef_type(&params->chandef) !=
2450                                                NL80211_CHAN_NO_HT)
2451                        config_bands |= BAND_G | BAND_GN;
2452        } else {
2453                if (cfg80211_get_chandef_type(&params->chandef) ==
2454                                                NL80211_CHAN_NO_HT)
2455                        config_bands = BAND_A;
2456                else
2457                        config_bands = BAND_AN | BAND_A;
2458        }
2459
2460        if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2461                adapter->config_bands = config_bands;
2462                adapter->adhoc_start_band = config_bands;
2463
2464                if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2465                        adapter->adhoc_11n_enabled = true;
2466                else
2467                        adapter->adhoc_11n_enabled = false;
2468        }
2469
2470        adapter->sec_chan_offset =
2471                mwifiex_chan_type_to_sec_chan_offset(
2472                        cfg80211_get_chandef_type(&params->chandef));
2473        priv->adhoc_channel = ieee80211_frequency_to_channel(
2474                                params->chandef.chan->center_freq);
2475
2476        mwifiex_dbg(adapter, INFO,
2477                    "info: set ibss band %d, chan %d, chan offset %d\n",
2478                    config_bands, priv->adhoc_channel,
2479                    adapter->sec_chan_offset);
2480
2481        return 0;
2482}
2483
2484/*
2485 * CFG802.11 operation handler to join an IBSS.
2486 *
2487 * This function does not work in any mode other than Ad-Hoc, or if
2488 * a join operation is already in progress.
2489 */
2490static int
2491mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2492                           struct cfg80211_ibss_params *params)
2493{
2494        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2495        int ret = 0;
2496
2497        if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2498                mwifiex_dbg(priv->adapter, ERROR,
2499                            "request to join ibss received\t"
2500                            "when station is not in ibss mode\n");
2501                goto done;
2502        }
2503
2504        mwifiex_dbg(priv->adapter, MSG,
2505                    "info: trying to join to %.*s and bssid %pM\n",
2506                    params->ssid_len, (char *)params->ssid, params->bssid);
2507
2508        mwifiex_set_ibss_params(priv, params);
2509
2510        ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2511                                     params->bssid, priv->bss_mode,
2512                                     params->chandef.chan, NULL,
2513                                     params->privacy);
2514done:
2515        if (!ret) {
2516                cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2517                                     params->chandef.chan, GFP_KERNEL);
2518                mwifiex_dbg(priv->adapter, MSG,
2519                            "info: joined/created adhoc network with bssid\t"
2520                            "%pM successfully\n", priv->cfg_bssid);
2521        } else {
2522                mwifiex_dbg(priv->adapter, ERROR,
2523                            "info: failed creating/joining adhoc network\n");
2524        }
2525
2526        return ret;
2527}
2528
2529/*
2530 * CFG802.11 operation handler to leave an IBSS.
2531 *
2532 * This function does not work if a leave operation is
2533 * already in progress.
2534 */
2535static int
2536mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2537{
2538        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2539
2540        mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2541                    priv->cfg_bssid);
2542        if (mwifiex_deauthenticate(priv, NULL))
2543                return -EFAULT;
2544
2545        eth_zero_addr(priv->cfg_bssid);
2546
2547        return 0;
2548}
2549
2550/*
2551 * CFG802.11 operation handler for scan request.
2552 *
2553 * This function issues a scan request to the firmware based upon
2554 * the user specified scan configuration. On successful completion,
2555 * it also informs the results.
2556 */
2557static int
2558mwifiex_cfg80211_scan(struct wiphy *wiphy,
2559                      struct cfg80211_scan_request *request)
2560{
2561        struct net_device *dev = request->wdev->netdev;
2562        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2563        int i, offset, ret;
2564        struct ieee80211_channel *chan;
2565        struct ieee_types_header *ie;
2566        struct mwifiex_user_scan_cfg *user_scan_cfg;
2567        u8 mac_addr[ETH_ALEN];
2568
2569        mwifiex_dbg(priv->adapter, CMD,
2570                    "info: received scan request on %s\n", dev->name);
2571
2572        /* Block scan request if scan operation or scan cleanup when interface
2573         * is disabled is in process
2574         */
2575        if (priv->scan_request || priv->scan_aborting) {
2576                mwifiex_dbg(priv->adapter, WARN,
2577                            "cmd: Scan already in process..\n");
2578                return -EBUSY;
2579        }
2580
2581        if (!priv->wdev.current_bss && priv->scan_block)
2582                priv->scan_block = false;
2583
2584        if (!mwifiex_stop_bg_scan(priv))
2585                cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2586
2587        user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2588        if (!user_scan_cfg)
2589                return -ENOMEM;
2590
2591        priv->scan_request = request;
2592
2593        if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2594                get_random_mask_addr(mac_addr, request->mac_addr,
2595                                     request->mac_addr_mask);
2596                ether_addr_copy(request->mac_addr, mac_addr);
2597                ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2598        }
2599
2600        user_scan_cfg->num_ssids = request->n_ssids;
2601        user_scan_cfg->ssid_list = request->ssids;
2602
2603        if (request->ie && request->ie_len) {
2604                offset = 0;
2605                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2606                        if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2607                                continue;
2608                        priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2609                        ie = (struct ieee_types_header *)(request->ie + offset);
2610                        memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2611                        offset += sizeof(*ie) + ie->len;
2612
2613                        if (offset >= request->ie_len)
2614                                break;
2615                }
2616        }
2617
2618        for (i = 0; i < min_t(u32, request->n_channels,
2619                              MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2620                chan = request->channels[i];
2621                user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2622                user_scan_cfg->chan_list[i].radio_type = chan->band;
2623
2624                if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2625                        user_scan_cfg->chan_list[i].scan_type =
2626                                                MWIFIEX_SCAN_TYPE_PASSIVE;
2627                else
2628                        user_scan_cfg->chan_list[i].scan_type =
2629                                                MWIFIEX_SCAN_TYPE_ACTIVE;
2630
2631                user_scan_cfg->chan_list[i].scan_time = 0;
2632        }
2633
2634        if (priv->adapter->scan_chan_gap_enabled &&
2635            mwifiex_is_any_intf_active(priv))
2636                user_scan_cfg->scan_chan_gap =
2637                                              priv->adapter->scan_chan_gap_time;
2638
2639        ret = mwifiex_scan_networks(priv, user_scan_cfg);
2640        kfree(user_scan_cfg);
2641        if (ret) {
2642                mwifiex_dbg(priv->adapter, ERROR,
2643                            "scan failed: %d\n", ret);
2644                priv->scan_aborting = false;
2645                priv->scan_request = NULL;
2646                return ret;
2647        }
2648
2649        if (request->ie && request->ie_len) {
2650                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2651                        if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2652                                priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2653                                memset(&priv->vs_ie[i].ie, 0,
2654                                       MWIFIEX_MAX_VSIE_LEN);
2655                        }
2656                }
2657        }
2658        return 0;
2659}
2660
2661/* CFG802.11 operation handler for sched_scan_start.
2662 *
2663 * This function issues a bgscan config request to the firmware based upon
2664 * the user specified sched_scan configuration. On successful completion,
2665 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2666 * query command to get sched_scan results from firmware.
2667 */
2668static int
2669mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2670                                  struct net_device *dev,
2671                                  struct cfg80211_sched_scan_request *request)
2672{
2673        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2674        int i, offset;
2675        struct ieee80211_channel *chan;
2676        struct mwifiex_bg_scan_cfg *bgscan_cfg;
2677        struct ieee_types_header *ie;
2678
2679        if (!request || (!request->n_ssids && !request->n_match_sets)) {
2680                wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2681                          __func__);
2682                return -EINVAL;
2683        }
2684
2685        wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2686                   request->n_ssids, request->n_match_sets);
2687        wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2688                   request->n_channels, request->scan_plans->interval,
2689                   (int)request->ie_len);
2690
2691        bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2692        if (!bgscan_cfg)
2693                return -ENOMEM;
2694
2695        if (priv->scan_request || priv->scan_aborting)
2696                bgscan_cfg->start_later = true;
2697
2698        bgscan_cfg->num_ssids = request->n_match_sets;
2699        bgscan_cfg->ssid_list = request->match_sets;
2700
2701        if (request->ie && request->ie_len) {
2702                offset = 0;
2703                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2704                        if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2705                                continue;
2706                        priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2707                        ie = (struct ieee_types_header *)(request->ie + offset);
2708                        memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2709                        offset += sizeof(*ie) + ie->len;
2710
2711                        if (offset >= request->ie_len)
2712                                break;
2713                }
2714        }
2715
2716        for (i = 0; i < min_t(u32, request->n_channels,
2717                              MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2718                chan = request->channels[i];
2719                bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2720                bgscan_cfg->chan_list[i].radio_type = chan->band;
2721
2722                if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2723                        bgscan_cfg->chan_list[i].scan_type =
2724                                                MWIFIEX_SCAN_TYPE_PASSIVE;
2725                else
2726                        bgscan_cfg->chan_list[i].scan_type =
2727                                                MWIFIEX_SCAN_TYPE_ACTIVE;
2728
2729                bgscan_cfg->chan_list[i].scan_time = 0;
2730        }
2731
2732        bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2733                                          MWIFIEX_BG_SCAN_CHAN_MAX);
2734
2735        /* Use at least 15 second for per scan cycle */
2736        bgscan_cfg->scan_interval = (request->scan_plans->interval >
2737                                     MWIFIEX_BGSCAN_INTERVAL) ?
2738                                request->scan_plans->interval :
2739                                MWIFIEX_BGSCAN_INTERVAL;
2740
2741        bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2742        bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2743                                MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2744        bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2745        bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2746        bgscan_cfg->enable = true;
2747        if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2748                bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2749                bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2750        }
2751
2752        if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2753                             HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2754                kfree(bgscan_cfg);
2755                return -EFAULT;
2756        }
2757
2758        priv->sched_scanning = true;
2759
2760        kfree(bgscan_cfg);
2761        return 0;
2762}
2763
2764/* CFG802.11 operation handler for sched_scan_stop.
2765 *
2766 * This function issues a bgscan config command to disable
2767 * previous bgscan configuration in the firmware
2768 */
2769static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2770                                            struct net_device *dev, u64 reqid)
2771{
2772        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2773
2774        wiphy_info(wiphy, "sched scan stop!");
2775        mwifiex_stop_bg_scan(priv);
2776
2777        return 0;
2778}
2779
2780static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2781                                   struct mwifiex_private *priv)
2782{
2783        struct mwifiex_adapter *adapter = priv->adapter;
2784
2785        vht_info->vht_supported = true;
2786
2787        vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2788        /* Update MCS support for VHT */
2789        vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2790                                adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2791        vht_info->vht_mcs.rx_highest = 0;
2792        vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2793                                adapter->hw_dot_11ac_mcs_support >> 16);
2794        vht_info->vht_mcs.tx_highest = 0;
2795}
2796
2797/*
2798 * This function sets up the CFG802.11 specific HT capability fields
2799 * with default values.
2800 *
2801 * The following default values are set -
2802 *      - HT Supported = True
2803 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2804 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2805 *      - HT Capabilities supported by firmware
2806 *      - MCS information, Rx mask = 0xff
2807 *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2808 */
2809static void
2810mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2811                      struct mwifiex_private *priv)
2812{
2813        int rx_mcs_supp;
2814        struct ieee80211_mcs_info mcs_set;
2815        u8 *mcs = (u8 *)&mcs_set;
2816        struct mwifiex_adapter *adapter = priv->adapter;
2817
2818        ht_info->ht_supported = true;
2819        ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2820        ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2821
2822        memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2823
2824        /* Fill HT capability information */
2825        if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2826                ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2827        else
2828                ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2829
2830        if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2831                ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2832        else
2833                ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2834
2835        if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2836                ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2837        else
2838                ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2839
2840        if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2841                ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2842        else
2843                ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2844
2845        if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2846                ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2847        else
2848                ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2849
2850        if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2851                ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2852        else
2853                ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2854
2855        if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2856                ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2857        else
2858                ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2859
2860        if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2861                ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2862        else
2863                ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2864
2865        ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2866        ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2867
2868        rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2869        /* Set MCS for 1x1/2x2 */
2870        memset(mcs, 0xff, rx_mcs_supp);
2871        /* Clear all the other values */
2872        memset(&mcs[rx_mcs_supp], 0,
2873               sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2874        if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2875            ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2876                /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2877                SETHT_MCS32(mcs_set.rx_mask);
2878
2879        memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2880
2881        ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2882}
2883
2884/*
2885 *  create a new virtual interface with the given name and name assign type
2886 */
2887struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2888                                              const char *name,
2889                                              unsigned char name_assign_type,
2890                                              enum nl80211_iftype type,
2891                                              struct vif_params *params)
2892{
2893        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2894        struct mwifiex_private *priv;
2895        struct net_device *dev;
2896        void *mdev_priv;
2897        int ret;
2898
2899        if (!adapter)
2900                return ERR_PTR(-EFAULT);
2901
2902        switch (type) {
2903        case NL80211_IFTYPE_UNSPECIFIED:
2904        case NL80211_IFTYPE_STATION:
2905        case NL80211_IFTYPE_ADHOC:
2906                if (adapter->curr_iface_comb.sta_intf ==
2907                    adapter->iface_limit.sta_intf) {
2908                        mwifiex_dbg(adapter, ERROR,
2909                                    "cannot create multiple sta/adhoc ifaces\n");
2910                        return ERR_PTR(-EINVAL);
2911                }
2912
2913                priv = mwifiex_get_unused_priv_by_bss_type(
2914                                                adapter, MWIFIEX_BSS_TYPE_STA);
2915                if (!priv) {
2916                        mwifiex_dbg(adapter, ERROR,
2917                                    "could not get free private struct\n");
2918                        return ERR_PTR(-EFAULT);
2919                }
2920
2921                priv->wdev.wiphy = wiphy;
2922                priv->wdev.iftype = NL80211_IFTYPE_STATION;
2923
2924                if (type == NL80211_IFTYPE_UNSPECIFIED)
2925                        priv->bss_mode = NL80211_IFTYPE_STATION;
2926                else
2927                        priv->bss_mode = type;
2928
2929                priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2930                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2931                priv->bss_priority = 0;
2932                priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2933
2934                break;
2935        case NL80211_IFTYPE_AP:
2936                if (adapter->curr_iface_comb.uap_intf ==
2937                    adapter->iface_limit.uap_intf) {
2938                        mwifiex_dbg(adapter, ERROR,
2939                                    "cannot create multiple AP ifaces\n");
2940                        return ERR_PTR(-EINVAL);
2941                }
2942
2943                priv = mwifiex_get_unused_priv_by_bss_type(
2944                                                adapter, MWIFIEX_BSS_TYPE_UAP);
2945                if (!priv) {
2946                        mwifiex_dbg(adapter, ERROR,
2947                                    "could not get free private struct\n");
2948                        return ERR_PTR(-EFAULT);
2949                }
2950
2951                priv->wdev.wiphy = wiphy;
2952                priv->wdev.iftype = NL80211_IFTYPE_AP;
2953
2954                priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2955                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2956                priv->bss_priority = 0;
2957                priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2958                priv->bss_started = 0;
2959                priv->bss_mode = type;
2960
2961                break;
2962        case NL80211_IFTYPE_P2P_CLIENT:
2963                if (adapter->curr_iface_comb.p2p_intf ==
2964                    adapter->iface_limit.p2p_intf) {
2965                        mwifiex_dbg(adapter, ERROR,
2966                                    "cannot create multiple P2P ifaces\n");
2967                        return ERR_PTR(-EINVAL);
2968                }
2969
2970                priv = mwifiex_get_unused_priv_by_bss_type(
2971                                                adapter, MWIFIEX_BSS_TYPE_P2P);
2972                if (!priv) {
2973                        mwifiex_dbg(adapter, ERROR,
2974                                    "could not get free private struct\n");
2975                        return ERR_PTR(-EFAULT);
2976                }
2977
2978                priv->wdev.wiphy = wiphy;
2979                /* At start-up, wpa_supplicant tries to change the interface
2980                 * to NL80211_IFTYPE_STATION if it is not managed mode.
2981                 */
2982                priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2983                priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2984
2985                /* Setting bss_type to P2P tells firmware that this interface
2986                 * is receiving P2P peers found during find phase and doing
2987                 * action frame handshake.
2988                 */
2989                priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2990
2991                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2992                priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2993                priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2994                priv->bss_started = 0;
2995
2996                if (mwifiex_cfg80211_init_p2p_client(priv)) {
2997                        memset(&priv->wdev, 0, sizeof(priv->wdev));
2998                        priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2999                        return ERR_PTR(-EFAULT);
3000                }
3001
3002                break;
3003        default:
3004                mwifiex_dbg(adapter, ERROR, "type not supported\n");
3005                return ERR_PTR(-EINVAL);
3006        }
3007
3008        dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3009                               name_assign_type, ether_setup,
3010                               IEEE80211_NUM_ACS, 1);
3011        if (!dev) {
3012                mwifiex_dbg(adapter, ERROR,
3013                            "no memory available for netdevice\n");
3014                ret = -ENOMEM;
3015                goto err_alloc_netdev;
3016        }
3017
3018        mwifiex_init_priv_params(priv, dev);
3019
3020        priv->netdev = dev;
3021
3022        if (!adapter->mfg_mode) {
3023                mwifiex_set_mac_address(priv, dev, false, NULL);
3024
3025                ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3026                                       HostCmd_ACT_GEN_SET, 0, NULL, true);
3027                if (ret)
3028                        goto err_set_bss_mode;
3029
3030                ret = mwifiex_sta_init_cmd(priv, false, false);
3031                if (ret)
3032                        goto err_sta_init;
3033        }
3034
3035        mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3036        if (adapter->is_hw_11ac_capable)
3037                mwifiex_setup_vht_caps(
3038                        &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3039
3040        if (adapter->config_bands & BAND_A)
3041                mwifiex_setup_ht_caps(
3042                        &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3043
3044        if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3045                mwifiex_setup_vht_caps(
3046                        &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3047
3048        dev_net_set(dev, wiphy_net(wiphy));
3049        dev->ieee80211_ptr = &priv->wdev;
3050        dev->ieee80211_ptr->iftype = priv->bss_mode;
3051        SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3052
3053        dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3054        dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3055        dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN;
3056        dev->ethtool_ops = &mwifiex_ethtool_ops;
3057
3058        mdev_priv = netdev_priv(dev);
3059        *((unsigned long *) mdev_priv) = (unsigned long) priv;
3060
3061        SET_NETDEV_DEV(dev, adapter->dev);
3062
3063        priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3064                                                  WQ_HIGHPRI |
3065                                                  WQ_MEM_RECLAIM |
3066                                                  WQ_UNBOUND, 1, name);
3067        if (!priv->dfs_cac_workqueue) {
3068                mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3069                ret = -ENOMEM;
3070                goto err_alloc_cac;
3071        }
3072
3073        INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3074
3075        priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3076                                                      WQ_HIGHPRI | WQ_UNBOUND |
3077                                                      WQ_MEM_RECLAIM, 1, name);
3078        if (!priv->dfs_chan_sw_workqueue) {
3079                mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3080                ret = -ENOMEM;
3081                goto err_alloc_chsw;
3082        }
3083
3084        INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3085                          mwifiex_dfs_chan_sw_work_queue);
3086
3087        mutex_init(&priv->async_mutex);
3088
3089        /* Register network device */
3090        if (register_netdevice(dev)) {
3091                mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3092                ret = -EFAULT;
3093                goto err_reg_netdev;
3094        }
3095
3096        mwifiex_dbg(adapter, INFO,
3097                    "info: %s: Marvell 802.11 Adapter\n", dev->name);
3098
3099#ifdef CONFIG_DEBUG_FS
3100        mwifiex_dev_debugfs_init(priv);
3101#endif
3102
3103        switch (type) {
3104        case NL80211_IFTYPE_UNSPECIFIED:
3105        case NL80211_IFTYPE_STATION:
3106        case NL80211_IFTYPE_ADHOC:
3107                adapter->curr_iface_comb.sta_intf++;
3108                break;
3109        case NL80211_IFTYPE_AP:
3110                adapter->curr_iface_comb.uap_intf++;
3111                break;
3112        case NL80211_IFTYPE_P2P_CLIENT:
3113                adapter->curr_iface_comb.p2p_intf++;
3114                break;
3115        default:
3116                /* This should be dead code; checked above */
3117                mwifiex_dbg(adapter, ERROR, "type not supported\n");
3118                return ERR_PTR(-EINVAL);
3119        }
3120
3121        return &priv->wdev;
3122
3123err_reg_netdev:
3124        destroy_workqueue(priv->dfs_chan_sw_workqueue);
3125        priv->dfs_chan_sw_workqueue = NULL;
3126err_alloc_chsw:
3127        destroy_workqueue(priv->dfs_cac_workqueue);
3128        priv->dfs_cac_workqueue = NULL;
3129err_alloc_cac:
3130        free_netdev(dev);
3131        priv->netdev = NULL;
3132err_sta_init:
3133err_set_bss_mode:
3134err_alloc_netdev:
3135        memset(&priv->wdev, 0, sizeof(priv->wdev));
3136        priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3137        priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3138        return ERR_PTR(ret);
3139}
3140EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3141
3142/*
3143 * del_virtual_intf: remove the virtual interface determined by dev
3144 */
3145int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3146{
3147        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3148        struct mwifiex_adapter *adapter = priv->adapter;
3149        struct sk_buff *skb, *tmp;
3150
3151#ifdef CONFIG_DEBUG_FS
3152        mwifiex_dev_debugfs_remove(priv);
3153#endif
3154
3155        if (priv->sched_scanning)
3156                priv->sched_scanning = false;
3157
3158        mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3159
3160        skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3161                skb_unlink(skb, &priv->bypass_txq);
3162                mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3163        }
3164
3165        if (netif_carrier_ok(priv->netdev))
3166                netif_carrier_off(priv->netdev);
3167
3168        if (wdev->netdev->reg_state == NETREG_REGISTERED)
3169                unregister_netdevice(wdev->netdev);
3170
3171        if (priv->dfs_cac_workqueue) {
3172                flush_workqueue(priv->dfs_cac_workqueue);
3173                destroy_workqueue(priv->dfs_cac_workqueue);
3174                priv->dfs_cac_workqueue = NULL;
3175        }
3176
3177        if (priv->dfs_chan_sw_workqueue) {
3178                flush_workqueue(priv->dfs_chan_sw_workqueue);
3179                destroy_workqueue(priv->dfs_chan_sw_workqueue);
3180                priv->dfs_chan_sw_workqueue = NULL;
3181        }
3182        /* Clear the priv in adapter */
3183        priv->netdev = NULL;
3184
3185        switch (priv->bss_mode) {
3186        case NL80211_IFTYPE_UNSPECIFIED:
3187        case NL80211_IFTYPE_STATION:
3188        case NL80211_IFTYPE_ADHOC:
3189                adapter->curr_iface_comb.sta_intf--;
3190                break;
3191        case NL80211_IFTYPE_AP:
3192                adapter->curr_iface_comb.uap_intf--;
3193                break;
3194        case NL80211_IFTYPE_P2P_CLIENT:
3195        case NL80211_IFTYPE_P2P_GO:
3196                adapter->curr_iface_comb.p2p_intf--;
3197                break;
3198        default:
3199                mwifiex_dbg(adapter, ERROR,
3200                            "del_virtual_intf: type not supported\n");
3201                break;
3202        }
3203
3204        priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3205
3206        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3207            GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3208                kfree(priv->hist_data);
3209
3210        return 0;
3211}
3212EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3213
3214static bool
3215mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3216                             u8 max_byte_seq)
3217{
3218        int j, k, valid_byte_cnt = 0;
3219        bool dont_care_byte = false;
3220
3221        for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3222                for (k = 0; k < 8; k++) {
3223                        if (pat->mask[j] & 1 << k) {
3224                                memcpy(byte_seq + valid_byte_cnt,
3225                                       &pat->pattern[j * 8 + k], 1);
3226                                valid_byte_cnt++;
3227                                if (dont_care_byte)
3228                                        return false;
3229                        } else {
3230                                if (valid_byte_cnt)
3231                                        dont_care_byte = true;
3232                        }
3233
3234                        /* wildcard bytes record as the offset
3235                         * before the valid byte
3236                         */
3237                        if (!valid_byte_cnt && !dont_care_byte)
3238                                pat->pkt_offset++;
3239
3240                        if (valid_byte_cnt > max_byte_seq)
3241                                return false;
3242                }
3243        }
3244
3245        byte_seq[max_byte_seq] = valid_byte_cnt;
3246
3247        return true;
3248}
3249
3250#ifdef CONFIG_PM
3251static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3252                                           struct mwifiex_mef_entry *mef_entry)
3253{
3254        int i, filt_num = 0, num_ipv4 = 0;
3255        struct in_device *in_dev;
3256        struct in_ifaddr *ifa;
3257        __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3258        struct mwifiex_adapter *adapter = priv->adapter;
3259
3260        mef_entry->mode = MEF_MODE_HOST_SLEEP;
3261        mef_entry->action = MEF_ACTION_AUTO_ARP;
3262
3263        /* Enable ARP offload feature */
3264        memset(ips, 0, sizeof(ips));
3265        for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3266                if (adapter->priv[i]->netdev) {
3267                        in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3268                        if (!in_dev)
3269                                continue;
3270                        ifa = rtnl_dereference(in_dev->ifa_list);
3271                        if (!ifa || !ifa->ifa_local)
3272                                continue;
3273                        ips[i] = ifa->ifa_local;
3274                        num_ipv4++;
3275                }
3276        }
3277
3278        for (i = 0; i < num_ipv4; i++) {
3279                if (!ips[i])
3280                        continue;
3281                mef_entry->filter[filt_num].repeat = 1;
3282                memcpy(mef_entry->filter[filt_num].byte_seq,
3283                       (u8 *)&ips[i], sizeof(ips[i]));
3284                mef_entry->filter[filt_num].
3285                        byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3286                        sizeof(ips[i]);
3287                mef_entry->filter[filt_num].offset = 46;
3288                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3289                if (filt_num) {
3290                        mef_entry->filter[filt_num].filt_action =
3291                                TYPE_OR;
3292                }
3293                filt_num++;
3294        }
3295
3296        mef_entry->filter[filt_num].repeat = 1;
3297        mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3298        mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3299        mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3300        mef_entry->filter[filt_num].offset = 20;
3301        mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3302        mef_entry->filter[filt_num].filt_action = TYPE_AND;
3303}
3304
3305static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3306                                        struct mwifiex_ds_mef_cfg *mef_cfg,
3307                                        struct mwifiex_mef_entry *mef_entry,
3308                                        struct cfg80211_wowlan *wowlan)
3309{
3310        int i, filt_num = 0, ret = 0;
3311        bool first_pat = true;
3312        u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3313        static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3314        static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3315
3316        mef_entry->mode = MEF_MODE_HOST_SLEEP;
3317        mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3318
3319        for (i = 0; i < wowlan->n_patterns; i++) {
3320                memset(byte_seq, 0, sizeof(byte_seq));
3321                if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3322                                        byte_seq,
3323                                        MWIFIEX_MEF_MAX_BYTESEQ)) {
3324                        mwifiex_dbg(priv->adapter, ERROR,
3325                                    "Pattern not supported\n");
3326                        return -EOPNOTSUPP;
3327                }
3328
3329                if (!wowlan->patterns[i].pkt_offset) {
3330                        if (!(byte_seq[0] & 0x01) &&
3331                            (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3332                                mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3333                                continue;
3334                        } else if (is_broadcast_ether_addr(byte_seq)) {
3335                                mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3336                                continue;
3337                        } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3338                                    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3339                                   (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3340                                    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3341                                mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3342                                continue;
3343                        }
3344                }
3345                mef_entry->filter[filt_num].repeat = 1;
3346                mef_entry->filter[filt_num].offset =
3347                        wowlan->patterns[i].pkt_offset;
3348                memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3349                                sizeof(byte_seq));
3350                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3351
3352                if (first_pat) {
3353                        first_pat = false;
3354                        mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3355                } else {
3356                        mef_entry->filter[filt_num].filt_action = TYPE_AND;
3357                }
3358
3359                filt_num++;
3360        }
3361
3362        if (wowlan->magic_pkt) {
3363                mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3364                mef_entry->filter[filt_num].repeat = 16;
3365                memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3366                                ETH_ALEN);
3367                mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3368                        ETH_ALEN;
3369                mef_entry->filter[filt_num].offset = 28;
3370                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3371                if (filt_num)
3372                        mef_entry->filter[filt_num].filt_action = TYPE_OR;
3373
3374                filt_num++;
3375                mef_entry->filter[filt_num].repeat = 16;
3376                memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3377                                ETH_ALEN);
3378                mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3379                        ETH_ALEN;
3380                mef_entry->filter[filt_num].offset = 56;
3381                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3382                mef_entry->filter[filt_num].filt_action = TYPE_OR;
3383                mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3384        }
3385        return ret;
3386}
3387
3388static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3389                                  struct cfg80211_wowlan *wowlan)
3390{
3391        int ret = 0, num_entries = 1;
3392        struct mwifiex_ds_mef_cfg mef_cfg;
3393        struct mwifiex_mef_entry *mef_entry;
3394
3395        if (wowlan->n_patterns || wowlan->magic_pkt)
3396                num_entries++;
3397
3398        mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3399        if (!mef_entry)
3400                return -ENOMEM;
3401
3402        memset(&mef_cfg, 0, sizeof(mef_cfg));
3403        mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3404                MWIFIEX_CRITERIA_UNICAST;
3405        mef_cfg.num_entries = num_entries;
3406        mef_cfg.mef_entry = mef_entry;
3407
3408        mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3409
3410        if (wowlan->n_patterns || wowlan->magic_pkt) {
3411                ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3412                                                   &mef_entry[1], wowlan);
3413                if (ret)
3414                        goto err;
3415        }
3416
3417        if (!mef_cfg.criteria)
3418                mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3419                        MWIFIEX_CRITERIA_UNICAST |
3420                        MWIFIEX_CRITERIA_MULTICAST;
3421
3422        ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3423                        HostCmd_ACT_GEN_SET, 0,
3424                        &mef_cfg, true);
3425
3426err:
3427        kfree(mef_entry);
3428        return ret;
3429}
3430
3431static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3432                                    struct cfg80211_wowlan *wowlan)
3433{
3434        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3435        struct mwifiex_ds_hs_cfg hs_cfg;
3436        int i, ret = 0, retry_num = 10;
3437        struct mwifiex_private *priv;
3438        struct mwifiex_private *sta_priv =
3439                        mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3440
3441        sta_priv->scan_aborting = true;
3442        for (i = 0; i < adapter->priv_num; i++) {
3443                priv = adapter->priv[i];
3444                mwifiex_abort_cac(priv);
3445        }
3446
3447        mwifiex_cancel_all_pending_cmd(adapter);
3448
3449        for (i = 0; i < adapter->priv_num; i++) {
3450                priv = adapter->priv[i];
3451                if (priv && priv->netdev)
3452                        netif_device_detach(priv->netdev);
3453        }
3454
3455        for (i = 0; i < retry_num; i++) {
3456                if (!mwifiex_wmm_lists_empty(adapter) ||
3457                    !mwifiex_bypass_txlist_empty(adapter) ||
3458                    !skb_queue_empty(&adapter->tx_data_q))
3459                        usleep_range(10000, 15000);
3460                else
3461                        break;
3462        }
3463
3464        if (!wowlan) {
3465                mwifiex_dbg(adapter, ERROR,
3466                            "None of the WOWLAN triggers enabled\n");
3467                ret = 0;
3468                goto done;
3469        }
3470
3471        if (!sta_priv->media_connected && !wowlan->nd_config) {
3472                mwifiex_dbg(adapter, ERROR,
3473                            "Can not configure WOWLAN in disconnected state\n");
3474                ret = 0;
3475                goto done;
3476        }
3477
3478        ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3479        if (ret) {
3480                mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3481                goto done;
3482        }
3483
3484        memset(&hs_cfg, 0, sizeof(hs_cfg));
3485        hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3486
3487        if (wowlan->nd_config) {
3488                mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3489                hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3490                mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3491                                                  wowlan->nd_config);
3492        }
3493
3494        if (wowlan->disconnect) {
3495                hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3496                mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3497        }
3498
3499        hs_cfg.is_invoke_hostcmd = false;
3500        hs_cfg.gpio = adapter->hs_cfg.gpio;
3501        hs_cfg.gap = adapter->hs_cfg.gap;
3502        ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3503                                    MWIFIEX_SYNC_CMD, &hs_cfg);
3504        if (ret)
3505                mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3506
3507done:
3508        sta_priv->scan_aborting = false;
3509        return ret;
3510}
3511
3512static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3513{
3514        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3515        struct mwifiex_private *priv;
3516        struct mwifiex_ds_wakeup_reason wakeup_reason;
3517        struct cfg80211_wowlan_wakeup wakeup_report;
3518        int i;
3519        bool report_wakeup_reason = true;
3520
3521        for (i = 0; i < adapter->priv_num; i++) {
3522                priv = adapter->priv[i];
3523                if (priv && priv->netdev)
3524                        netif_device_attach(priv->netdev);
3525        }
3526
3527        if (!wiphy->wowlan_config)
3528                goto done;
3529
3530        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3531        mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3532                                  &wakeup_reason);
3533        memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3534
3535        wakeup_report.pattern_idx = -1;
3536
3537        switch (wakeup_reason.hs_wakeup_reason) {
3538        case NO_HSWAKEUP_REASON:
3539                break;
3540        case BCAST_DATA_MATCHED:
3541                break;
3542        case MCAST_DATA_MATCHED:
3543                break;
3544        case UCAST_DATA_MATCHED:
3545                break;
3546        case MASKTABLE_EVENT_MATCHED:
3547                break;
3548        case NON_MASKABLE_EVENT_MATCHED:
3549                if (wiphy->wowlan_config->disconnect)
3550                        wakeup_report.disconnect = true;
3551                if (wiphy->wowlan_config->nd_config)
3552                        wakeup_report.net_detect = adapter->nd_info;
3553                break;
3554        case NON_MASKABLE_CONDITION_MATCHED:
3555                break;
3556        case MAGIC_PATTERN_MATCHED:
3557                if (wiphy->wowlan_config->magic_pkt)
3558                        wakeup_report.magic_pkt = true;
3559                if (wiphy->wowlan_config->n_patterns)
3560                        wakeup_report.pattern_idx = 1;
3561                break;
3562        case GTK_REKEY_FAILURE:
3563                if (wiphy->wowlan_config->gtk_rekey_failure)
3564                        wakeup_report.gtk_rekey_failure = true;
3565                break;
3566        default:
3567                report_wakeup_reason = false;
3568                break;
3569        }
3570
3571        if (report_wakeup_reason)
3572                cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3573                                              GFP_KERNEL);
3574
3575done:
3576        if (adapter->nd_info) {
3577                for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3578                        kfree(adapter->nd_info->matches[i]);
3579                kfree(adapter->nd_info);
3580                adapter->nd_info = NULL;
3581        }
3582
3583        return 0;
3584}
3585
3586static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3587                                       bool enabled)
3588{
3589        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3590
3591        device_set_wakeup_enable(adapter->dev, enabled);
3592}
3593
3594static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3595                                  struct cfg80211_gtk_rekey_data *data)
3596{
3597        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3598
3599        if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3600                return -EOPNOTSUPP;
3601
3602        return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3603                                HostCmd_ACT_GEN_SET, 0, data, true);
3604}
3605
3606#endif
3607
3608static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3609{
3610        static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3611        static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3612        static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3613
3614        if ((byte_seq[0] & 0x01) &&
3615            (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3616                return PACKET_TYPE_UNICAST;
3617        else if (!memcmp(byte_seq, bc_mac, 4))
3618                return PACKET_TYPE_BROADCAST;
3619        else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3620                  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3621                 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3622                  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3623                return PACKET_TYPE_MULTICAST;
3624
3625        return 0;
3626}
3627
3628static int
3629mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3630                                struct cfg80211_coalesce_rules *crule,
3631                                struct mwifiex_coalesce_rule *mrule)
3632{
3633        u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3634        struct filt_field_param *param;
3635        int i;
3636
3637        mrule->max_coalescing_delay = crule->delay;
3638
3639        param = mrule->params;
3640
3641        for (i = 0; i < crule->n_patterns; i++) {
3642                memset(byte_seq, 0, sizeof(byte_seq));
3643                if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3644                                                  byte_seq,
3645                                                MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3646                        mwifiex_dbg(priv->adapter, ERROR,
3647                                    "Pattern not supported\n");
3648                        return -EOPNOTSUPP;
3649                }
3650
3651                if (!crule->patterns[i].pkt_offset) {
3652                        u8 pkt_type;
3653
3654                        pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3655                        if (pkt_type && mrule->pkt_type) {
3656                                mwifiex_dbg(priv->adapter, ERROR,
3657                                            "Multiple packet types not allowed\n");
3658                                return -EOPNOTSUPP;
3659                        } else if (pkt_type) {
3660                                mrule->pkt_type = pkt_type;
3661                                continue;
3662                        }
3663                }
3664
3665                if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3666                        param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3667                else
3668                        param->operation = RECV_FILTER_MATCH_TYPE_NE;
3669
3670                param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3671                memcpy(param->operand_byte_stream, byte_seq,
3672                       param->operand_len);
3673                param->offset = crule->patterns[i].pkt_offset;
3674                param++;
3675
3676                mrule->num_of_fields++;
3677        }
3678
3679        if (!mrule->pkt_type) {
3680                mwifiex_dbg(priv->adapter, ERROR,
3681                            "Packet type can not be determined\n");
3682                return -EOPNOTSUPP;
3683        }
3684
3685        return 0;
3686}
3687
3688static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3689                                         struct cfg80211_coalesce *coalesce)
3690{
3691        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3692        int i, ret;
3693        struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3694        struct mwifiex_private *priv =
3695                        mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3696
3697        memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3698        if (!coalesce) {
3699                mwifiex_dbg(adapter, WARN,
3700                            "Disable coalesce and reset all previous rules\n");
3701                return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3702                                        HostCmd_ACT_GEN_SET, 0,
3703                                        &coalesce_cfg, true);
3704        }
3705
3706        coalesce_cfg.num_of_rules = coalesce->n_rules;
3707        for (i = 0; i < coalesce->n_rules; i++) {
3708                ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3709                                                      &coalesce_cfg.rule[i]);
3710                if (ret) {
3711                        mwifiex_dbg(adapter, ERROR,
3712                                    "Recheck the patterns provided for rule %d\n",
3713                                i + 1);
3714                        return ret;
3715                }
3716        }
3717
3718        return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3719                                HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3720}
3721
3722/* cfg80211 ops handler for tdls_mgmt.
3723 * Function prepares TDLS action frame packets and forwards them to FW
3724 */
3725static int
3726mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3727                           const u8 *peer, u8 action_code, u8 dialog_token,
3728                           u16 status_code, u32 peer_capability,
3729                           bool initiator, const u8 *extra_ies,
3730                           size_t extra_ies_len)
3731{
3732        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3733        int ret;
3734
3735        if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3736                return -ENOTSUPP;
3737
3738        /* make sure we are in station mode and connected */
3739        if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3740                return -ENOTSUPP;
3741
3742        switch (action_code) {
3743        case WLAN_TDLS_SETUP_REQUEST:
3744                mwifiex_dbg(priv->adapter, MSG,
3745                            "Send TDLS Setup Request to %pM status_code=%d\n",
3746                            peer, status_code);
3747                mwifiex_add_auto_tdls_peer(priv, peer);
3748                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3749                                                   dialog_token, status_code,
3750                                                   extra_ies, extra_ies_len);
3751                break;
3752        case WLAN_TDLS_SETUP_RESPONSE:
3753                mwifiex_add_auto_tdls_peer(priv, peer);
3754                mwifiex_dbg(priv->adapter, MSG,
3755                            "Send TDLS Setup Response to %pM status_code=%d\n",
3756                            peer, status_code);
3757                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3758                                                   dialog_token, status_code,
3759                                                   extra_ies, extra_ies_len);
3760                break;
3761        case WLAN_TDLS_SETUP_CONFIRM:
3762                mwifiex_dbg(priv->adapter, MSG,
3763                            "Send TDLS Confirm to %pM status_code=%d\n", peer,
3764                            status_code);
3765                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3766                                                   dialog_token, status_code,
3767                                                   extra_ies, extra_ies_len);
3768                break;
3769        case WLAN_TDLS_TEARDOWN:
3770                mwifiex_dbg(priv->adapter, MSG,
3771                            "Send TDLS Tear down to %pM\n", peer);
3772                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3773                                                   dialog_token, status_code,
3774                                                   extra_ies, extra_ies_len);
3775                break;
3776        case WLAN_TDLS_DISCOVERY_REQUEST:
3777                mwifiex_dbg(priv->adapter, MSG,
3778                            "Send TDLS Discovery Request to %pM\n", peer);
3779                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3780                                                   dialog_token, status_code,
3781                                                   extra_ies, extra_ies_len);
3782                break;
3783        case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3784                mwifiex_dbg(priv->adapter, MSG,
3785                            "Send TDLS Discovery Response to %pM\n", peer);
3786                ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3787                                                   dialog_token, status_code,
3788                                                   extra_ies, extra_ies_len);
3789                break;
3790        default:
3791                mwifiex_dbg(priv->adapter, ERROR,
3792                            "Unknown TDLS mgmt/action frame %pM\n", peer);
3793                ret = -EINVAL;
3794                break;
3795        }
3796
3797        return ret;
3798}
3799
3800static int
3801mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3802                           const u8 *peer, enum nl80211_tdls_operation action)
3803{
3804        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3805
3806        if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3807            !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3808                return -ENOTSUPP;
3809
3810        /* make sure we are in station mode and connected */
3811        if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3812                return -ENOTSUPP;
3813
3814        mwifiex_dbg(priv->adapter, MSG,
3815                    "TDLS peer=%pM, oper=%d\n", peer, action);
3816
3817        switch (action) {
3818        case NL80211_TDLS_ENABLE_LINK:
3819                action = MWIFIEX_TDLS_ENABLE_LINK;
3820                break;
3821        case NL80211_TDLS_DISABLE_LINK:
3822                action = MWIFIEX_TDLS_DISABLE_LINK;
3823                break;
3824        case NL80211_TDLS_TEARDOWN:
3825                /* shouldn't happen!*/
3826                mwifiex_dbg(priv->adapter, ERROR,
3827                            "tdls_oper: teardown from driver not supported\n");
3828                return -EINVAL;
3829        case NL80211_TDLS_SETUP:
3830                /* shouldn't happen!*/
3831                mwifiex_dbg(priv->adapter, ERROR,
3832                            "tdls_oper: setup from driver not supported\n");
3833                return -EINVAL;
3834        case NL80211_TDLS_DISCOVERY_REQ:
3835                /* shouldn't happen!*/
3836                mwifiex_dbg(priv->adapter, ERROR,
3837                            "tdls_oper: discovery from driver not supported\n");
3838                return -EINVAL;
3839        default:
3840                mwifiex_dbg(priv->adapter, ERROR,
3841                            "tdls_oper: operation not supported\n");
3842                return -ENOTSUPP;
3843        }
3844
3845        return mwifiex_tdls_oper(priv, peer, action);
3846}
3847
3848static int
3849mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3850                                  const u8 *addr, u8 oper_class,
3851                                  struct cfg80211_chan_def *chandef)
3852{
3853        struct mwifiex_sta_node *sta_ptr;
3854        u16 chan;
3855        u8 second_chan_offset, band;
3856        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3857
3858        spin_lock_bh(&priv->sta_list_spinlock);
3859        sta_ptr = mwifiex_get_sta_entry(priv, addr);
3860        if (!sta_ptr) {
3861                spin_unlock_bh(&priv->sta_list_spinlock);
3862                wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3863                          __func__, addr);
3864                return -ENOENT;
3865        }
3866
3867        if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3868              WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3869                spin_unlock_bh(&priv->sta_list_spinlock);
3870                wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3871                return -ENOENT;
3872        }
3873
3874        if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3875            sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3876                spin_unlock_bh(&priv->sta_list_spinlock);
3877                wiphy_err(wiphy, "channel switch is running, abort request\n");
3878                return -EALREADY;
3879        }
3880        spin_unlock_bh(&priv->sta_list_spinlock);
3881
3882        chan = chandef->chan->hw_value;
3883        second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3884        band = chandef->chan->band;
3885        mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3886
3887        return 0;
3888}
3889
3890static void
3891mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3892                                         struct net_device *dev,
3893                                         const u8 *addr)
3894{
3895        struct mwifiex_sta_node *sta_ptr;
3896        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3897
3898        spin_lock_bh(&priv->sta_list_spinlock);
3899        sta_ptr = mwifiex_get_sta_entry(priv, addr);
3900        if (!sta_ptr) {
3901                spin_unlock_bh(&priv->sta_list_spinlock);
3902                wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3903                          __func__, addr);
3904        } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3905                     sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3906                     sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3907                spin_unlock_bh(&priv->sta_list_spinlock);
3908                wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3909                          addr);
3910        } else {
3911                spin_unlock_bh(&priv->sta_list_spinlock);
3912                mwifiex_stop_tdls_cs(priv, addr);
3913        }
3914}
3915
3916static int
3917mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3918                             const u8 *mac, struct station_parameters *params)
3919{
3920        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3921
3922        if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3923                return -ENOTSUPP;
3924
3925        /* make sure we are in station mode and connected */
3926        if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3927                return -ENOTSUPP;
3928
3929        return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3930}
3931
3932static int
3933mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3934                                struct cfg80211_csa_settings *params)
3935{
3936        struct ieee_types_header *chsw_ie;
3937        struct ieee80211_channel_sw_ie *channel_sw;
3938        int chsw_msec;
3939        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3940
3941        if (priv->adapter->scan_processing) {
3942                mwifiex_dbg(priv->adapter, ERROR,
3943                            "radar detection: scan in process...\n");
3944                return -EBUSY;
3945        }
3946
3947        if (priv->wdev.cac_started)
3948                return -EBUSY;
3949
3950        if (cfg80211_chandef_identical(&params->chandef,
3951                                       &priv->dfs_chandef))
3952                return -EINVAL;
3953
3954        chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3955                                           params->beacon_csa.tail,
3956                                           params->beacon_csa.tail_len);
3957        if (!chsw_ie) {
3958                mwifiex_dbg(priv->adapter, ERROR,
3959                            "Could not parse channel switch announcement IE\n");
3960                return -EINVAL;
3961        }
3962
3963        channel_sw = (void *)(chsw_ie + 1);
3964        if (channel_sw->mode) {
3965                if (netif_carrier_ok(priv->netdev))
3966                        netif_carrier_off(priv->netdev);
3967                mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3968        }
3969
3970        if (mwifiex_del_mgmt_ies(priv))
3971                mwifiex_dbg(priv->adapter, ERROR,
3972                            "Failed to delete mgmt IEs!\n");
3973
3974        if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3975                mwifiex_dbg(priv->adapter, ERROR,
3976                            "%s: setting mgmt ies failed\n", __func__);
3977                return -EFAULT;
3978        }
3979
3980        memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3981        memcpy(&priv->beacon_after, &params->beacon_after,
3982               sizeof(priv->beacon_after));
3983
3984        chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3985        queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3986                           msecs_to_jiffies(chsw_msec));
3987        return 0;
3988}
3989
3990static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3991                                        struct wireless_dev *wdev,
3992                                        struct cfg80211_chan_def *chandef)
3993{
3994        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3995        struct mwifiex_bssdescriptor *curr_bss;
3996        struct ieee80211_channel *chan;
3997        enum nl80211_channel_type chan_type;
3998        enum nl80211_band band;
3999        int freq;
4000        int ret = -ENODATA;
4001
4002        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
4003            cfg80211_chandef_valid(&priv->bss_chandef)) {
4004                *chandef = priv->bss_chandef;
4005                ret = 0;
4006        } else if (priv->media_connected) {
4007                curr_bss = &priv->curr_bss_params.bss_descriptor;
4008                band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
4009                freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
4010                chan = ieee80211_get_channel(wiphy, freq);
4011
4012                if (priv->ht_param_present) {
4013                        chan_type = mwifiex_get_chan_type(priv);
4014                        cfg80211_chandef_create(chandef, chan, chan_type);
4015                } else {
4016                        cfg80211_chandef_create(chandef, chan,
4017                                                NL80211_CHAN_NO_HT);
4018                }
4019                ret = 0;
4020        }
4021
4022        return ret;
4023}
4024
4025#ifdef CONFIG_NL80211_TESTMODE
4026
4027enum mwifiex_tm_attr {
4028        __MWIFIEX_TM_ATTR_INVALID       = 0,
4029        MWIFIEX_TM_ATTR_CMD             = 1,
4030        MWIFIEX_TM_ATTR_DATA            = 2,
4031
4032        /* keep last */
4033        __MWIFIEX_TM_ATTR_AFTER_LAST,
4034        MWIFIEX_TM_ATTR_MAX             = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4035};
4036
4037static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4038        [MWIFIEX_TM_ATTR_CMD]           = { .type = NLA_U32 },
4039        [MWIFIEX_TM_ATTR_DATA]          = { .type = NLA_BINARY,
4040                                            .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4041};
4042
4043enum mwifiex_tm_command {
4044        MWIFIEX_TM_CMD_HOSTCMD  = 0,
4045};
4046
4047static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4048                          void *data, int len)
4049{
4050        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4051        struct mwifiex_ds_misc_cmd *hostcmd;
4052        struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4053        struct sk_buff *skb;
4054        int err;
4055
4056        if (!priv)
4057                return -EINVAL;
4058
4059        err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len,
4060                                   mwifiex_tm_policy, NULL);
4061        if (err)
4062                return err;
4063
4064        if (!tb[MWIFIEX_TM_ATTR_CMD])
4065                return -EINVAL;
4066
4067        switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4068        case MWIFIEX_TM_CMD_HOSTCMD:
4069                if (!tb[MWIFIEX_TM_ATTR_DATA])
4070                        return -EINVAL;
4071
4072                hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4073                if (!hostcmd)
4074                        return -ENOMEM;
4075
4076                hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4077                memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4078                       hostcmd->len);
4079
4080                if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4081                        dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4082                        kfree(hostcmd);
4083                        return -EFAULT;
4084                }
4085
4086                /* process hostcmd response*/
4087                skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4088                if (!skb) {
4089                        kfree(hostcmd);
4090                        return -ENOMEM;
4091                }
4092                err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4093                              hostcmd->len, hostcmd->cmd);
4094                if (err) {
4095                        kfree(hostcmd);
4096                        kfree_skb(skb);
4097                        return -EMSGSIZE;
4098                }
4099
4100                err = cfg80211_testmode_reply(skb);
4101                kfree(hostcmd);
4102                return err;
4103        default:
4104                return -EOPNOTSUPP;
4105        }
4106}
4107#endif
4108
4109static int
4110mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4111                                       struct net_device *dev,
4112                                       struct cfg80211_chan_def *chandef,
4113                                       u32 cac_time_ms)
4114{
4115        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4116        struct mwifiex_radar_params radar_params;
4117
4118        if (priv->adapter->scan_processing) {
4119                mwifiex_dbg(priv->adapter, ERROR,
4120                            "radar detection: scan already in process...\n");
4121                return -EBUSY;
4122        }
4123
4124        if (!mwifiex_is_11h_active(priv)) {
4125                mwifiex_dbg(priv->adapter, INFO,
4126                            "Enable 11h extensions in FW\n");
4127                if (mwifiex_11h_activate(priv, true)) {
4128                        mwifiex_dbg(priv->adapter, ERROR,
4129                                    "Failed to activate 11h extensions!!");
4130                        return -1;
4131                }
4132                priv->state_11h.is_11h_active = true;
4133        }
4134
4135        memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4136        radar_params.chandef = chandef;
4137        radar_params.cac_time_ms = cac_time_ms;
4138
4139        memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4140
4141        if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4142                             HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4143                return -1;
4144
4145        queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4146                           msecs_to_jiffies(cac_time_ms));
4147        return 0;
4148}
4149
4150static int
4151mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4152                                const u8 *mac,
4153                                struct station_parameters *params)
4154{
4155        int ret;
4156        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4157
4158        /* we support change_station handler only for TDLS peers*/
4159        if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4160                return -ENOTSUPP;
4161
4162        /* make sure we are in station mode and connected */
4163        if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4164                return -ENOTSUPP;
4165
4166        priv->sta_params = params;
4167
4168        ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4169        priv->sta_params = NULL;
4170
4171        return ret;
4172}
4173
4174/* station cfg80211 operations */
4175static struct cfg80211_ops mwifiex_cfg80211_ops = {
4176        .add_virtual_intf = mwifiex_add_virtual_intf,
4177        .del_virtual_intf = mwifiex_del_virtual_intf,
4178        .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4179        .scan = mwifiex_cfg80211_scan,
4180        .connect = mwifiex_cfg80211_connect,
4181        .disconnect = mwifiex_cfg80211_disconnect,
4182        .get_station = mwifiex_cfg80211_get_station,
4183        .dump_station = mwifiex_cfg80211_dump_station,
4184        .dump_survey = mwifiex_cfg80211_dump_survey,
4185        .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4186        .join_ibss = mwifiex_cfg80211_join_ibss,
4187        .leave_ibss = mwifiex_cfg80211_leave_ibss,
4188        .add_key = mwifiex_cfg80211_add_key,
4189        .del_key = mwifiex_cfg80211_del_key,
4190        .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4191        .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4192        .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
4193        .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4194        .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4195        .set_default_key = mwifiex_cfg80211_set_default_key,
4196        .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4197        .set_tx_power = mwifiex_cfg80211_set_tx_power,
4198        .get_tx_power = mwifiex_cfg80211_get_tx_power,
4199        .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4200        .start_ap = mwifiex_cfg80211_start_ap,
4201        .stop_ap = mwifiex_cfg80211_stop_ap,
4202        .change_beacon = mwifiex_cfg80211_change_beacon,
4203        .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4204        .set_antenna = mwifiex_cfg80211_set_antenna,
4205        .get_antenna = mwifiex_cfg80211_get_antenna,
4206        .del_station = mwifiex_cfg80211_del_station,
4207        .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4208        .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4209#ifdef CONFIG_PM
4210        .suspend = mwifiex_cfg80211_suspend,
4211        .resume = mwifiex_cfg80211_resume,
4212        .set_wakeup = mwifiex_cfg80211_set_wakeup,
4213        .set_rekey_data = mwifiex_set_rekey_data,
4214#endif
4215        .set_coalesce = mwifiex_cfg80211_set_coalesce,
4216        .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4217        .tdls_oper = mwifiex_cfg80211_tdls_oper,
4218        .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4219        .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4220        .add_station = mwifiex_cfg80211_add_station,
4221        .change_station = mwifiex_cfg80211_change_station,
4222        CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4223        .get_channel = mwifiex_cfg80211_get_channel,
4224        .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4225        .channel_switch = mwifiex_cfg80211_channel_switch,
4226};
4227
4228#ifdef CONFIG_PM
4229static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4230        .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4231                WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4232                WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4233        .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4234        .pattern_min_len = 1,
4235        .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4236        .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4237        .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4238};
4239
4240static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4241        .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4242                 WIPHY_WOWLAN_NET_DETECT,
4243        .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4244        .pattern_min_len = 1,
4245        .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4246        .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4247        .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4248};
4249#endif
4250
4251static bool mwifiex_is_valid_alpha2(const char *alpha2)
4252{
4253        if (!alpha2 || strlen(alpha2) != 2)
4254                return false;
4255
4256        if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4257                return true;
4258
4259        return false;
4260}
4261
4262static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4263        .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4264        .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4265        .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4266        .pattern_min_len = 1,
4267        .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4268        .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4269};
4270
4271int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4272{
4273        u32 n_channels_bg, n_channels_a = 0;
4274
4275        n_channels_bg = mwifiex_band_2ghz.n_channels;
4276
4277        if (adapter->config_bands & BAND_A)
4278                n_channels_a = mwifiex_band_5ghz.n_channels;
4279
4280        /* allocate twice the number total channels, since the driver issues an
4281         * additional active scan request for hidden SSIDs on passive channels.
4282         */
4283        adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4284        adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats),
4285                                                 adapter->num_in_chan_stats));
4286
4287        if (!adapter->chan_stats)
4288                return -ENOMEM;
4289
4290        return 0;
4291}
4292
4293/*
4294 * This function registers the device with CFG802.11 subsystem.
4295 *
4296 * The function creates the wireless device/wiphy, populates it with
4297 * default parameters and handler function pointers, and finally
4298 * registers the device.
4299 */
4300
4301int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4302{
4303        int ret;
4304        void *wdev_priv;
4305        struct wiphy *wiphy;
4306        struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4307        u8 *country_code;
4308        u32 thr, retry;
4309
4310        /* create a new wiphy for use with cfg80211 */
4311        wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4312                          sizeof(struct mwifiex_adapter *));
4313        if (!wiphy) {
4314                mwifiex_dbg(adapter, ERROR,
4315                            "%s: creating new wiphy\n", __func__);
4316                return -ENOMEM;
4317        }
4318        wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4319        wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4320        wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4321        wiphy->max_remain_on_channel_duration = 5000;
4322        wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4323                                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4324                                 BIT(NL80211_IFTYPE_P2P_GO) |
4325                                 BIT(NL80211_IFTYPE_AP);
4326
4327        if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4328                wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4329
4330        wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4331        if (adapter->config_bands & BAND_A)
4332                wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4333        else
4334                wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4335
4336        if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4337                wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4338        else if (adapter->is_hw_11ac_capable)
4339                wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4340        else
4341                wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4342        wiphy->n_iface_combinations = 1;
4343
4344        /* Initialize cipher suits */
4345        wiphy->cipher_suites = mwifiex_cipher_suites;
4346        wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4347
4348        if (adapter->regd) {
4349                wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4350                                           REGULATORY_DISABLE_BEACON_HINTS |
4351                                           REGULATORY_COUNTRY_IE_IGNORE;
4352                wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4353        }
4354
4355        ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4356        wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4357        wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4358                        WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4359                        WIPHY_FLAG_AP_UAPSD |
4360                        WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4361                        WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4362                        WIPHY_FLAG_PS_ON_BY_DEFAULT;
4363
4364        if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4365                wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4366                                WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4367
4368#ifdef CONFIG_PM
4369        if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4370                wiphy->wowlan = &mwifiex_wowlan_support;
4371        else
4372                wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4373#endif
4374
4375        wiphy->coalesce = &mwifiex_coalesce_support;
4376
4377        wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4378                                    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4379                                    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4380
4381        wiphy->max_sched_scan_reqs = 1;
4382        wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4383        wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4384        wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4385
4386        wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4387        wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4388
4389        wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
4390                           NL80211_FEATURE_LOW_PRIORITY_SCAN |
4391                           NL80211_FEATURE_NEED_OBSS_SCAN;
4392
4393        if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4394                wiphy->features |= NL80211_FEATURE_HT_IBSS;
4395
4396        if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4397                wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4398                                   NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4399                                   NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4400
4401        if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4402                wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4403
4404        if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4405                wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4406
4407        /* Reserve space for mwifiex specific private data for BSS */
4408        wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4409
4410        wiphy->reg_notifier = mwifiex_reg_notifier;
4411
4412        /* Set struct mwifiex_adapter pointer in wiphy_priv */
4413        wdev_priv = wiphy_priv(wiphy);
4414        *(unsigned long *)wdev_priv = (unsigned long)adapter;
4415
4416        set_wiphy_dev(wiphy, priv->adapter->dev);
4417
4418        ret = wiphy_register(wiphy);
4419        if (ret < 0) {
4420                mwifiex_dbg(adapter, ERROR,
4421                            "%s: wiphy_register failed: %d\n", __func__, ret);
4422                wiphy_free(wiphy);
4423                return ret;
4424        }
4425
4426        if (!adapter->regd) {
4427                if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4428                        mwifiex_dbg(adapter, INFO,
4429                                    "driver hint alpha2: %2.2s\n", reg_alpha2);
4430                        regulatory_hint(wiphy, reg_alpha2);
4431                } else {
4432                        if (adapter->region_code == 0x00) {
4433                                mwifiex_dbg(adapter, WARN,
4434                                            "Ignore world regulatory domain\n");
4435                        } else {
4436                                wiphy->regulatory_flags |=
4437                                        REGULATORY_DISABLE_BEACON_HINTS |
4438                                        REGULATORY_COUNTRY_IE_IGNORE;
4439                                country_code =
4440                                        mwifiex_11d_code_2_region(
4441                                                adapter->region_code);
4442                                if (country_code &&
4443                                    regulatory_hint(wiphy, country_code))
4444                                        mwifiex_dbg(priv->adapter, ERROR,
4445                                                    "regulatory_hint() failed\n");
4446                        }
4447                }
4448        }
4449
4450        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4451                         HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4452        wiphy->frag_threshold = thr;
4453        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4454                         HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4455        wiphy->rts_threshold = thr;
4456        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4457                         HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4458        wiphy->retry_short = (u8) retry;
4459        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4460                         HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4461        wiphy->retry_long = (u8) retry;
4462
4463        adapter->wiphy = wiphy;
4464        return ret;
4465}
4466