linux/drivers/net/wireless/marvell/mwifiex/cfg80211.c
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   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_irqsave(&adapter->rx_proc_lock, flags);
 880        adapter->rx_locked = true;
 881        if (adapter->rx_processing) {
 882                spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 883                flush_workqueue(adapter->rx_workqueue);
 884        } else {
 885        spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 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_irqsave(&adapter->rx_proc_lock, flags);
 938        adapter->rx_locked = false;
 939        spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
 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        unsigned long flags;
1831
1832        if (!priv->bss_started && priv->wdev.cac_started) {
1833                mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1834                mwifiex_abort_cac(priv);
1835        }
1836
1837        if (list_empty(&priv->sta_list) || !priv->bss_started)
1838                return 0;
1839
1840        if (!params->mac || is_broadcast_ether_addr(params->mac))
1841                return 0;
1842
1843        mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1844                    __func__, params->mac);
1845
1846        eth_zero_addr(deauth_mac);
1847
1848        spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1849        sta_node = mwifiex_get_sta_entry(priv, params->mac);
1850        if (sta_node)
1851                ether_addr_copy(deauth_mac, params->mac);
1852        spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1853
1854        if (is_valid_ether_addr(deauth_mac)) {
1855                if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1856                                     HostCmd_ACT_GEN_SET, 0,
1857                                     deauth_mac, true))
1858                        return -1;
1859        }
1860
1861        return 0;
1862}
1863
1864static int
1865mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1866{
1867        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1868        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1869                                                        MWIFIEX_BSS_ROLE_ANY);
1870        struct mwifiex_ds_ant_cfg ant_cfg;
1871
1872        if (!tx_ant || !rx_ant)
1873                return -EOPNOTSUPP;
1874
1875        if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1876                /* Not a MIMO chip. User should provide specific antenna number
1877                 * for Tx/Rx path or enable all antennas for diversity
1878                 */
1879                if (tx_ant != rx_ant)
1880                        return -EOPNOTSUPP;
1881
1882                if ((tx_ant & (tx_ant - 1)) &&
1883                    (tx_ant != BIT(adapter->number_of_antenna) - 1))
1884                        return -EOPNOTSUPP;
1885
1886                if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1887                    (priv->adapter->number_of_antenna > 1)) {
1888                        tx_ant = RF_ANTENNA_AUTO;
1889                        rx_ant = RF_ANTENNA_AUTO;
1890                }
1891        } else {
1892                struct ieee80211_sta_ht_cap *ht_info;
1893                int rx_mcs_supp;
1894                enum nl80211_band band;
1895
1896                if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1897                        adapter->user_dev_mcs_support = HT_STREAM_1X1;
1898                        if (adapter->is_hw_11ac_capable)
1899                                adapter->usr_dot_11ac_mcs_support =
1900                                                MWIFIEX_11AC_MCS_MAP_1X1;
1901                } else {
1902                        adapter->user_dev_mcs_support = HT_STREAM_2X2;
1903                        if (adapter->is_hw_11ac_capable)
1904                                adapter->usr_dot_11ac_mcs_support =
1905                                                MWIFIEX_11AC_MCS_MAP_2X2;
1906                }
1907
1908                for (band = 0; band < NUM_NL80211_BANDS; band++) {
1909                        if (!adapter->wiphy->bands[band])
1910                                continue;
1911
1912                        ht_info = &adapter->wiphy->bands[band]->ht_cap;
1913                        rx_mcs_supp =
1914                                GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1915                        memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1916                        memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1917                }
1918        }
1919
1920        ant_cfg.tx_ant = tx_ant;
1921        ant_cfg.rx_ant = rx_ant;
1922
1923        return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1924                                HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1925}
1926
1927static int
1928mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1929{
1930        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1931        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1932                                                        MWIFIEX_BSS_ROLE_ANY);
1933        mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1934                         HostCmd_ACT_GEN_GET, 0, NULL, true);
1935
1936        *tx_ant = priv->tx_ant;
1937        *rx_ant = priv->rx_ant;
1938
1939        return 0;
1940}
1941
1942/* cfg80211 operation handler for stop ap.
1943 * Function stops BSS running at uAP interface.
1944 */
1945static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1946{
1947        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1948
1949        mwifiex_abort_cac(priv);
1950
1951        if (mwifiex_del_mgmt_ies(priv))
1952                mwifiex_dbg(priv->adapter, ERROR,
1953                            "Failed to delete mgmt IEs!\n");
1954
1955        priv->ap_11n_enabled = 0;
1956        memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1957
1958        if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1959                             HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1960                mwifiex_dbg(priv->adapter, ERROR,
1961                            "Failed to stop the BSS\n");
1962                return -1;
1963        }
1964
1965        if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1966                             HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1967                mwifiex_dbg(priv->adapter, ERROR,
1968                            "Failed to reset BSS\n");
1969                return -1;
1970        }
1971
1972        if (netif_carrier_ok(priv->netdev))
1973                netif_carrier_off(priv->netdev);
1974        mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1975
1976        return 0;
1977}
1978
1979/* cfg80211 operation handler for start_ap.
1980 * Function sets beacon period, DTIM period, SSID and security into
1981 * AP config structure.
1982 * AP is configured with these settings and BSS is started.
1983 */
1984static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1985                                     struct net_device *dev,
1986                                     struct cfg80211_ap_settings *params)
1987{
1988        struct mwifiex_uap_bss_param *bss_cfg;
1989        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1990
1991        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1992                return -1;
1993
1994        bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1995        if (!bss_cfg)
1996                return -ENOMEM;
1997
1998        mwifiex_set_sys_config_invalid_data(bss_cfg);
1999
2000        if (params->beacon_interval)
2001                bss_cfg->beacon_period = params->beacon_interval;
2002        if (params->dtim_period)
2003                bss_cfg->dtim_period = params->dtim_period;
2004
2005        if (params->ssid && params->ssid_len) {
2006                memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2007                bss_cfg->ssid.ssid_len = params->ssid_len;
2008        }
2009        if (params->inactivity_timeout > 0) {
2010                /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2011                bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2012                bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2013        }
2014
2015        switch (params->hidden_ssid) {
2016        case NL80211_HIDDEN_SSID_NOT_IN_USE:
2017                bss_cfg->bcast_ssid_ctl = 1;
2018                break;
2019        case NL80211_HIDDEN_SSID_ZERO_LEN:
2020                bss_cfg->bcast_ssid_ctl = 0;
2021                break;
2022        case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2023                bss_cfg->bcast_ssid_ctl = 2;
2024                break;
2025        default:
2026                kfree(bss_cfg);
2027                return -EINVAL;
2028        }
2029
2030        mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2031        mwifiex_set_uap_rates(bss_cfg, params);
2032
2033        if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2034                mwifiex_dbg(priv->adapter, ERROR,
2035                            "Failed to parse security parameters!\n");
2036                goto out;
2037        }
2038
2039        mwifiex_set_ht_params(priv, bss_cfg, params);
2040
2041        if (priv->adapter->is_hw_11ac_capable) {
2042                mwifiex_set_vht_params(priv, bss_cfg, params);
2043                mwifiex_set_vht_width(priv, params->chandef.width,
2044                                      priv->ap_11ac_enabled);
2045        }
2046
2047        if (priv->ap_11ac_enabled)
2048                mwifiex_set_11ac_ba_params(priv);
2049        else
2050                mwifiex_set_ba_params(priv);
2051
2052        mwifiex_set_wmm_params(priv, bss_cfg, params);
2053
2054        if (mwifiex_is_11h_active(priv))
2055                mwifiex_set_tpc_params(priv, bss_cfg, params);
2056
2057        if (mwifiex_is_11h_active(priv) &&
2058            !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2059                                           priv->bss_mode)) {
2060                mwifiex_dbg(priv->adapter, INFO,
2061                            "Disable 11h extensions in FW\n");
2062                if (mwifiex_11h_activate(priv, false)) {
2063                        mwifiex_dbg(priv->adapter, ERROR,
2064                                    "Failed to disable 11h extensions!!");
2065                        goto out;
2066                }
2067                priv->state_11h.is_11h_active = false;
2068        }
2069
2070        mwifiex_config_uap_11d(priv, &params->beacon);
2071
2072        if (mwifiex_config_start_uap(priv, bss_cfg)) {
2073                mwifiex_dbg(priv->adapter, ERROR,
2074                            "Failed to start AP\n");
2075                goto out;
2076        }
2077
2078        if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2079                goto out;
2080
2081        if (!netif_carrier_ok(priv->netdev))
2082                netif_carrier_on(priv->netdev);
2083        mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2084
2085        memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2086        kfree(bss_cfg);
2087        return 0;
2088
2089out:
2090        kfree(bss_cfg);
2091        return -1;
2092}
2093
2094/*
2095 * CFG802.11 operation handler for disconnection request.
2096 *
2097 * This function does not work when there is already a disconnection
2098 * procedure going on.
2099 */
2100static int
2101mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2102                            u16 reason_code)
2103{
2104        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2105
2106        if (!mwifiex_stop_bg_scan(priv))
2107                cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2108
2109        if (mwifiex_deauthenticate(priv, NULL))
2110                return -EFAULT;
2111
2112        eth_zero_addr(priv->cfg_bssid);
2113        priv->hs2_enabled = false;
2114
2115        return 0;
2116}
2117
2118/*
2119 * This function informs the CFG802.11 subsystem of a new IBSS.
2120 *
2121 * The following information are sent to the CFG802.11 subsystem
2122 * to register the new IBSS. If we do not register the new IBSS,
2123 * a kernel panic will result.
2124 *      - SSID
2125 *      - SSID length
2126 *      - BSSID
2127 *      - Channel
2128 */
2129static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2130{
2131        struct ieee80211_channel *chan;
2132        struct mwifiex_bss_info bss_info;
2133        struct cfg80211_bss *bss;
2134        int ie_len;
2135        u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2136        enum nl80211_band band;
2137
2138        if (mwifiex_get_bss_info(priv, &bss_info))
2139                return -1;
2140
2141        ie_buf[0] = WLAN_EID_SSID;
2142        ie_buf[1] = bss_info.ssid.ssid_len;
2143
2144        memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2145               &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2146        ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2147
2148        band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2149        chan = ieee80211_get_channel(priv->wdev.wiphy,
2150                        ieee80211_channel_to_frequency(bss_info.bss_chan,
2151                                                       band));
2152
2153        bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2154                                  CFG80211_BSS_FTYPE_UNKNOWN,
2155                                  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2156                                  0, ie_buf, ie_len, 0, GFP_KERNEL);
2157        if (bss) {
2158                cfg80211_put_bss(priv->wdev.wiphy, bss);
2159                ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2160        }
2161
2162        return 0;
2163}
2164
2165/*
2166 * This function connects with a BSS.
2167 *
2168 * This function handles both Infra and Ad-Hoc modes. It also performs
2169 * validity checking on the provided parameters, disconnects from the
2170 * current BSS (if any), sets up the association/scan parameters,
2171 * including security settings, and performs specific SSID scan before
2172 * trying to connect.
2173 *
2174 * For Infra mode, the function returns failure if the specified SSID
2175 * is not found in scan table. However, for Ad-Hoc mode, it can create
2176 * the IBSS if it does not exist. On successful completion in either case,
2177 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2178 */
2179static int
2180mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2181                       const u8 *ssid, const u8 *bssid, int mode,
2182                       struct ieee80211_channel *channel,
2183                       struct cfg80211_connect_params *sme, bool privacy)
2184{
2185        struct cfg80211_ssid req_ssid;
2186        int ret, auth_type = 0;
2187        struct cfg80211_bss *bss = NULL;
2188        u8 is_scanning_required = 0;
2189
2190        memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2191
2192        req_ssid.ssid_len = ssid_len;
2193        if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2194                mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2195                return -EINVAL;
2196        }
2197
2198        memcpy(req_ssid.ssid, ssid, ssid_len);
2199        if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2200                mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2201                return -EINVAL;
2202        }
2203
2204        /* As this is new association, clear locally stored
2205         * keys and security related flags */
2206        priv->sec_info.wpa_enabled = false;
2207        priv->sec_info.wpa2_enabled = false;
2208        priv->wep_key_curr_index = 0;
2209        priv->sec_info.encryption_mode = 0;
2210        priv->sec_info.is_authtype_auto = 0;
2211        ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2212
2213        if (mode == NL80211_IFTYPE_ADHOC) {
2214                u16 enable = true;
2215
2216                /* set ibss coalescing_status */
2217                ret = mwifiex_send_cmd(
2218                                priv,
2219                                HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2220                                HostCmd_ACT_GEN_SET, 0, &enable, true);
2221                if (ret)
2222                        return ret;
2223
2224                /* "privacy" is set only for ad-hoc mode */
2225                if (privacy) {
2226                        /*
2227                         * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2228                         * the firmware can find a matching network from the
2229                         * scan. The cfg80211 does not give us the encryption
2230                         * mode at this stage so just setting it to WEP here.
2231                         */
2232                        priv->sec_info.encryption_mode =
2233                                        WLAN_CIPHER_SUITE_WEP104;
2234                        priv->sec_info.authentication_mode =
2235                                        NL80211_AUTHTYPE_OPEN_SYSTEM;
2236                }
2237
2238                goto done;
2239        }
2240
2241        /* Now handle infra mode. "sme" is valid for infra mode only */
2242        if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2243                auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2244                priv->sec_info.is_authtype_auto = 1;
2245        } else {
2246                auth_type = sme->auth_type;
2247        }
2248
2249        if (sme->crypto.n_ciphers_pairwise) {
2250                priv->sec_info.encryption_mode =
2251                                                sme->crypto.ciphers_pairwise[0];
2252                priv->sec_info.authentication_mode = auth_type;
2253        }
2254
2255        if (sme->crypto.cipher_group) {
2256                priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2257                priv->sec_info.authentication_mode = auth_type;
2258        }
2259        if (sme->ie)
2260                ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2261
2262        if (sme->key) {
2263                if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2264                        mwifiex_dbg(priv->adapter, INFO,
2265                                    "info: setting wep encryption\t"
2266                                    "with key len %d\n", sme->key_len);
2267                        priv->wep_key_curr_index = sme->key_idx;
2268                        ret = mwifiex_set_encode(priv, NULL, sme->key,
2269                                                 sme->key_len, sme->key_idx,
2270                                                 NULL, 0);
2271                }
2272        }
2273done:
2274        /*
2275         * Scan entries are valid for some time (15 sec). So we can save one
2276         * active scan time if we just try cfg80211_get_bss first. If it fails
2277         * then request scan and cfg80211_get_bss() again for final output.
2278         */
2279        while (1) {
2280                if (is_scanning_required) {
2281                        /* Do specific SSID scanning */
2282                        if (mwifiex_request_scan(priv, &req_ssid)) {
2283                                mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2284                                return -EFAULT;
2285                        }
2286                }
2287
2288                /* Find the BSS we want using available scan results */
2289                if (mode == NL80211_IFTYPE_ADHOC)
2290                        bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2291                                               bssid, ssid, ssid_len,
2292                                               IEEE80211_BSS_TYPE_IBSS,
2293                                               IEEE80211_PRIVACY_ANY);
2294                else
2295                        bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2296                                               bssid, ssid, ssid_len,
2297                                               IEEE80211_BSS_TYPE_ESS,
2298                                               IEEE80211_PRIVACY_ANY);
2299
2300                if (!bss) {
2301                        if (is_scanning_required) {
2302                                mwifiex_dbg(priv->adapter, MSG,
2303                                            "assoc: requested bss not found in scan results\n");
2304                                break;
2305                        }
2306                        is_scanning_required = 1;
2307                } else {
2308                        mwifiex_dbg(priv->adapter, MSG,
2309                                    "info: trying to associate to '%.*s' bssid %pM\n",
2310                                    req_ssid.ssid_len, (char *)req_ssid.ssid,
2311                                    bss->bssid);
2312                        memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2313                        break;
2314                }
2315        }
2316
2317        ret = mwifiex_bss_start(priv, bss, &req_ssid);
2318        if (ret)
2319                return ret;
2320
2321        if (mode == NL80211_IFTYPE_ADHOC) {
2322                /* Inform the BSS information to kernel, otherwise
2323                 * kernel will give a panic after successful assoc */
2324                if (mwifiex_cfg80211_inform_ibss_bss(priv))
2325                        return -EFAULT;
2326        }
2327
2328        return ret;
2329}
2330
2331/*
2332 * CFG802.11 operation handler for association request.
2333 *
2334 * This function does not work when the current mode is set to Ad-Hoc, or
2335 * when there is already an association procedure going on. The given BSS
2336 * information is used to associate.
2337 */
2338static int
2339mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2340                         struct cfg80211_connect_params *sme)
2341{
2342        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2343        struct mwifiex_adapter *adapter = priv->adapter;
2344        int ret;
2345
2346        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2347                mwifiex_dbg(adapter, ERROR,
2348                            "%s: reject infra assoc request in non-STA role\n",
2349                            dev->name);
2350                return -EINVAL;
2351        }
2352
2353        if (priv->wdev.current_bss) {
2354                mwifiex_dbg(adapter, ERROR,
2355                            "%s: already connected\n", dev->name);
2356                return -EALREADY;
2357        }
2358
2359        if (priv->scan_block)
2360                priv->scan_block = false;
2361
2362        if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2363            test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2364                mwifiex_dbg(adapter, ERROR,
2365                            "%s: Ignore connection.\t"
2366                            "Card removed or FW in bad state\n",
2367                            dev->name);
2368                return -EFAULT;
2369        }
2370
2371        mwifiex_dbg(adapter, INFO,
2372                    "info: Trying to associate to %.*s and bssid %pM\n",
2373                    (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2374
2375        if (!mwifiex_stop_bg_scan(priv))
2376                cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2377
2378        ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2379                                     priv->bss_mode, sme->channel, sme, 0);
2380        if (!ret) {
2381                cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2382                                        NULL, 0, WLAN_STATUS_SUCCESS,
2383                                        GFP_KERNEL);
2384                mwifiex_dbg(priv->adapter, MSG,
2385                            "info: associated to bssid %pM successfully\n",
2386                            priv->cfg_bssid);
2387                if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2388                    priv->adapter->auto_tdls &&
2389                    priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2390                        mwifiex_setup_auto_tdls_timer(priv);
2391        } else {
2392                mwifiex_dbg(priv->adapter, ERROR,
2393                            "info: association to bssid %pM failed\n",
2394                            priv->cfg_bssid);
2395                eth_zero_addr(priv->cfg_bssid);
2396
2397                if (ret > 0)
2398                        cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2399                                                NULL, 0, NULL, 0, ret,
2400                                                GFP_KERNEL);
2401                else
2402                        cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2403                                                NULL, 0, NULL, 0,
2404                                                WLAN_STATUS_UNSPECIFIED_FAILURE,
2405                                                GFP_KERNEL);
2406        }
2407
2408        return 0;
2409}
2410
2411/*
2412 * This function sets following parameters for ibss network.
2413 *  -  channel
2414 *  -  start band
2415 *  -  11n flag
2416 *  -  secondary channel offset
2417 */
2418static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2419                                   struct cfg80211_ibss_params *params)
2420{
2421        struct mwifiex_adapter *adapter = priv->adapter;
2422        int index = 0, i;
2423        u8 config_bands = 0;
2424
2425        if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2426                if (!params->basic_rates) {
2427                        config_bands = BAND_B | BAND_G;
2428                } else {
2429                        for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2430                                /*
2431                                 * Rates below 6 Mbps in the table are CCK
2432                                 * rates; 802.11b and from 6 they are OFDM;
2433                                 * 802.11G
2434                                 */
2435                                if (mwifiex_rates[i].bitrate == 60) {
2436                                        index = 1 << i;
2437                                        break;
2438                                }
2439                        }
2440
2441                        if (params->basic_rates < index) {
2442                                config_bands = BAND_B;
2443                        } else {
2444                                config_bands = BAND_G;
2445                                if (params->basic_rates % index)
2446                                        config_bands |= BAND_B;
2447                        }
2448                }
2449
2450                if (cfg80211_get_chandef_type(&params->chandef) !=
2451                                                NL80211_CHAN_NO_HT)
2452                        config_bands |= BAND_G | BAND_GN;
2453        } else {
2454                if (cfg80211_get_chandef_type(&params->chandef) ==
2455                                                NL80211_CHAN_NO_HT)
2456                        config_bands = BAND_A;
2457                else
2458                        config_bands = BAND_AN | BAND_A;
2459        }
2460
2461        if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2462                adapter->config_bands = config_bands;
2463                adapter->adhoc_start_band = config_bands;
2464
2465                if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2466                        adapter->adhoc_11n_enabled = true;
2467                else
2468                        adapter->adhoc_11n_enabled = false;
2469        }
2470
2471        adapter->sec_chan_offset =
2472                mwifiex_chan_type_to_sec_chan_offset(
2473                        cfg80211_get_chandef_type(&params->chandef));
2474        priv->adhoc_channel = ieee80211_frequency_to_channel(
2475                                params->chandef.chan->center_freq);
2476
2477        mwifiex_dbg(adapter, INFO,
2478                    "info: set ibss band %d, chan %d, chan offset %d\n",
2479                    config_bands, priv->adhoc_channel,
2480                    adapter->sec_chan_offset);
2481
2482        return 0;
2483}
2484
2485/*
2486 * CFG802.11 operation handler to join an IBSS.
2487 *
2488 * This function does not work in any mode other than Ad-Hoc, or if
2489 * a join operation is already in progress.
2490 */
2491static int
2492mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2493                           struct cfg80211_ibss_params *params)
2494{
2495        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2496        int ret = 0;
2497
2498        if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2499                mwifiex_dbg(priv->adapter, ERROR,
2500                            "request to join ibss received\t"
2501                            "when station is not in ibss mode\n");
2502                goto done;
2503        }
2504
2505        mwifiex_dbg(priv->adapter, MSG,
2506                    "info: trying to join to %.*s and bssid %pM\n",
2507                    params->ssid_len, (char *)params->ssid, params->bssid);
2508
2509        mwifiex_set_ibss_params(priv, params);
2510
2511        ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2512                                     params->bssid, priv->bss_mode,
2513                                     params->chandef.chan, NULL,
2514                                     params->privacy);
2515done:
2516        if (!ret) {
2517                cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2518                                     params->chandef.chan, GFP_KERNEL);
2519                mwifiex_dbg(priv->adapter, MSG,
2520                            "info: joined/created adhoc network with bssid\t"
2521                            "%pM successfully\n", priv->cfg_bssid);
2522        } else {
2523                mwifiex_dbg(priv->adapter, ERROR,
2524                            "info: failed creating/joining adhoc network\n");
2525        }
2526
2527        return ret;
2528}
2529
2530/*
2531 * CFG802.11 operation handler to leave an IBSS.
2532 *
2533 * This function does not work if a leave operation is
2534 * already in progress.
2535 */
2536static int
2537mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2538{
2539        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2540
2541        mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2542                    priv->cfg_bssid);
2543        if (mwifiex_deauthenticate(priv, NULL))
2544                return -EFAULT;
2545
2546        eth_zero_addr(priv->cfg_bssid);
2547
2548        return 0;
2549}
2550
2551/*
2552 * CFG802.11 operation handler for scan request.
2553 *
2554 * This function issues a scan request to the firmware based upon
2555 * the user specified scan configuration. On successful completion,
2556 * it also informs the results.
2557 */
2558static int
2559mwifiex_cfg80211_scan(struct wiphy *wiphy,
2560                      struct cfg80211_scan_request *request)
2561{
2562        struct net_device *dev = request->wdev->netdev;
2563        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2564        int i, offset, ret;
2565        struct ieee80211_channel *chan;
2566        struct ieee_types_header *ie;
2567        struct mwifiex_user_scan_cfg *user_scan_cfg;
2568        u8 mac_addr[ETH_ALEN];
2569
2570        mwifiex_dbg(priv->adapter, CMD,
2571                    "info: received scan request on %s\n", dev->name);
2572
2573        /* Block scan request if scan operation or scan cleanup when interface
2574         * is disabled is in process
2575         */
2576        if (priv->scan_request || priv->scan_aborting) {
2577                mwifiex_dbg(priv->adapter, WARN,
2578                            "cmd: Scan already in process..\n");
2579                return -EBUSY;
2580        }
2581
2582        if (!priv->wdev.current_bss && priv->scan_block)
2583                priv->scan_block = false;
2584
2585        if (!mwifiex_stop_bg_scan(priv))
2586                cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2587
2588        user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2589        if (!user_scan_cfg)
2590                return -ENOMEM;
2591
2592        priv->scan_request = request;
2593
2594        if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2595                get_random_mask_addr(mac_addr, request->mac_addr,
2596                                     request->mac_addr_mask);
2597                ether_addr_copy(request->mac_addr, mac_addr);
2598                ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2599        }
2600
2601        user_scan_cfg->num_ssids = request->n_ssids;
2602        user_scan_cfg->ssid_list = request->ssids;
2603
2604        if (request->ie && request->ie_len) {
2605                offset = 0;
2606                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2607                        if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2608                                continue;
2609                        priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2610                        ie = (struct ieee_types_header *)(request->ie + offset);
2611                        memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2612                        offset += sizeof(*ie) + ie->len;
2613
2614                        if (offset >= request->ie_len)
2615                                break;
2616                }
2617        }
2618
2619        for (i = 0; i < min_t(u32, request->n_channels,
2620                              MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2621                chan = request->channels[i];
2622                user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2623                user_scan_cfg->chan_list[i].radio_type = chan->band;
2624
2625                if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2626                        user_scan_cfg->chan_list[i].scan_type =
2627                                                MWIFIEX_SCAN_TYPE_PASSIVE;
2628                else
2629                        user_scan_cfg->chan_list[i].scan_type =
2630                                                MWIFIEX_SCAN_TYPE_ACTIVE;
2631
2632                user_scan_cfg->chan_list[i].scan_time = 0;
2633        }
2634
2635        if (priv->adapter->scan_chan_gap_enabled &&
2636            mwifiex_is_any_intf_active(priv))
2637                user_scan_cfg->scan_chan_gap =
2638                                              priv->adapter->scan_chan_gap_time;
2639
2640        ret = mwifiex_scan_networks(priv, user_scan_cfg);
2641        kfree(user_scan_cfg);
2642        if (ret) {
2643                mwifiex_dbg(priv->adapter, ERROR,
2644                            "scan failed: %d\n", ret);
2645                priv->scan_aborting = false;
2646                priv->scan_request = NULL;
2647                return ret;
2648        }
2649
2650        if (request->ie && request->ie_len) {
2651                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2652                        if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2653                                priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2654                                memset(&priv->vs_ie[i].ie, 0,
2655                                       MWIFIEX_MAX_VSIE_LEN);
2656                        }
2657                }
2658        }
2659        return 0;
2660}
2661
2662/* CFG802.11 operation handler for sched_scan_start.
2663 *
2664 * This function issues a bgscan config request to the firmware based upon
2665 * the user specified sched_scan configuration. On successful completion,
2666 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2667 * query command to get sched_scan results from firmware.
2668 */
2669static int
2670mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2671                                  struct net_device *dev,
2672                                  struct cfg80211_sched_scan_request *request)
2673{
2674        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2675        int i, offset;
2676        struct ieee80211_channel *chan;
2677        struct mwifiex_bg_scan_cfg *bgscan_cfg;
2678        struct ieee_types_header *ie;
2679
2680        if (!request || (!request->n_ssids && !request->n_match_sets)) {
2681                wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2682                          __func__);
2683                return -EINVAL;
2684        }
2685
2686        wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2687                   request->n_ssids, request->n_match_sets);
2688        wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2689                   request->n_channels, request->scan_plans->interval,
2690                   (int)request->ie_len);
2691
2692        bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2693        if (!bgscan_cfg)
2694                return -ENOMEM;
2695
2696        if (priv->scan_request || priv->scan_aborting)
2697                bgscan_cfg->start_later = true;
2698
2699        bgscan_cfg->num_ssids = request->n_match_sets;
2700        bgscan_cfg->ssid_list = request->match_sets;
2701
2702        if (request->ie && request->ie_len) {
2703                offset = 0;
2704                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2705                        if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2706                                continue;
2707                        priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2708                        ie = (struct ieee_types_header *)(request->ie + offset);
2709                        memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2710                        offset += sizeof(*ie) + ie->len;
2711
2712                        if (offset >= request->ie_len)
2713                                break;
2714                }
2715        }
2716
2717        for (i = 0; i < min_t(u32, request->n_channels,
2718                              MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2719                chan = request->channels[i];
2720                bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2721                bgscan_cfg->chan_list[i].radio_type = chan->band;
2722
2723                if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2724                        bgscan_cfg->chan_list[i].scan_type =
2725                                                MWIFIEX_SCAN_TYPE_PASSIVE;
2726                else
2727                        bgscan_cfg->chan_list[i].scan_type =
2728                                                MWIFIEX_SCAN_TYPE_ACTIVE;
2729
2730                bgscan_cfg->chan_list[i].scan_time = 0;
2731        }
2732
2733        bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2734                                          MWIFIEX_BG_SCAN_CHAN_MAX);
2735
2736        /* Use at least 15 second for per scan cycle */
2737        bgscan_cfg->scan_interval = (request->scan_plans->interval >
2738                                     MWIFIEX_BGSCAN_INTERVAL) ?
2739                                request->scan_plans->interval :
2740                                MWIFIEX_BGSCAN_INTERVAL;
2741
2742        bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2743        bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2744                                MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2745        bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2746        bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2747        bgscan_cfg->enable = true;
2748        if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2749                bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2750                bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2751        }
2752
2753        if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2754                             HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2755                kfree(bgscan_cfg);
2756                return -EFAULT;
2757        }
2758
2759        priv->sched_scanning = true;
2760
2761        kfree(bgscan_cfg);
2762        return 0;
2763}
2764
2765/* CFG802.11 operation handler for sched_scan_stop.
2766 *
2767 * This function issues a bgscan config command to disable
2768 * previous bgscan configuration in the firmware
2769 */
2770static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2771                                            struct net_device *dev, u64 reqid)
2772{
2773        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2774
2775        wiphy_info(wiphy, "sched scan stop!");
2776        mwifiex_stop_bg_scan(priv);
2777
2778        return 0;
2779}
2780
2781static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2782                                   struct mwifiex_private *priv)
2783{
2784        struct mwifiex_adapter *adapter = priv->adapter;
2785
2786        vht_info->vht_supported = true;
2787
2788        vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2789        /* Update MCS support for VHT */
2790        vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2791                                adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2792        vht_info->vht_mcs.rx_highest = 0;
2793        vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2794                                adapter->hw_dot_11ac_mcs_support >> 16);
2795        vht_info->vht_mcs.tx_highest = 0;
2796}
2797
2798/*
2799 * This function sets up the CFG802.11 specific HT capability fields
2800 * with default values.
2801 *
2802 * The following default values are set -
2803 *      - HT Supported = True
2804 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2805 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2806 *      - HT Capabilities supported by firmware
2807 *      - MCS information, Rx mask = 0xff
2808 *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2809 */
2810static void
2811mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2812                      struct mwifiex_private *priv)
2813{
2814        int rx_mcs_supp;
2815        struct ieee80211_mcs_info mcs_set;
2816        u8 *mcs = (u8 *)&mcs_set;
2817        struct mwifiex_adapter *adapter = priv->adapter;
2818
2819        ht_info->ht_supported = true;
2820        ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2821        ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2822
2823        memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2824
2825        /* Fill HT capability information */
2826        if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2827                ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2828        else
2829                ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2830
2831        if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2832                ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2833        else
2834                ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2835
2836        if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2837                ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2838        else
2839                ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2840
2841        if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2842                ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2843        else
2844                ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2845
2846        if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2847                ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2848        else
2849                ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2850
2851        if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2852                ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2853        else
2854                ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2855
2856        if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2857                ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2858        else
2859                ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2860
2861        if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2862                ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2863        else
2864                ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2865
2866        ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2867        ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2868
2869        rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2870        /* Set MCS for 1x1/2x2 */
2871        memset(mcs, 0xff, rx_mcs_supp);
2872        /* Clear all the other values */
2873        memset(&mcs[rx_mcs_supp], 0,
2874               sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2875        if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2876            ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2877                /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2878                SETHT_MCS32(mcs_set.rx_mask);
2879
2880        memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2881
2882        ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2883}
2884
2885/*
2886 *  create a new virtual interface with the given name and name assign type
2887 */
2888struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2889                                              const char *name,
2890                                              unsigned char name_assign_type,
2891                                              enum nl80211_iftype type,
2892                                              struct vif_params *params)
2893{
2894        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2895        struct mwifiex_private *priv;
2896        struct net_device *dev;
2897        void *mdev_priv;
2898        int ret;
2899
2900        if (!adapter)
2901                return ERR_PTR(-EFAULT);
2902
2903        switch (type) {
2904        case NL80211_IFTYPE_UNSPECIFIED:
2905        case NL80211_IFTYPE_STATION:
2906        case NL80211_IFTYPE_ADHOC:
2907                if (adapter->curr_iface_comb.sta_intf ==
2908                    adapter->iface_limit.sta_intf) {
2909                        mwifiex_dbg(adapter, ERROR,
2910                                    "cannot create multiple sta/adhoc ifaces\n");
2911                        return ERR_PTR(-EINVAL);
2912                }
2913
2914                priv = mwifiex_get_unused_priv_by_bss_type(
2915                                                adapter, MWIFIEX_BSS_TYPE_STA);
2916                if (!priv) {
2917                        mwifiex_dbg(adapter, ERROR,
2918                                    "could not get free private struct\n");
2919                        return ERR_PTR(-EFAULT);
2920                }
2921
2922                priv->wdev.wiphy = wiphy;
2923                priv->wdev.iftype = NL80211_IFTYPE_STATION;
2924
2925                if (type == NL80211_IFTYPE_UNSPECIFIED)
2926                        priv->bss_mode = NL80211_IFTYPE_STATION;
2927                else
2928                        priv->bss_mode = type;
2929
2930                priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2931                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2932                priv->bss_priority = 0;
2933                priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2934
2935                break;
2936        case NL80211_IFTYPE_AP:
2937                if (adapter->curr_iface_comb.uap_intf ==
2938                    adapter->iface_limit.uap_intf) {
2939                        mwifiex_dbg(adapter, ERROR,
2940                                    "cannot create multiple AP ifaces\n");
2941                        return ERR_PTR(-EINVAL);
2942                }
2943
2944                priv = mwifiex_get_unused_priv_by_bss_type(
2945                                                adapter, MWIFIEX_BSS_TYPE_UAP);
2946                if (!priv) {
2947                        mwifiex_dbg(adapter, ERROR,
2948                                    "could not get free private struct\n");
2949                        return ERR_PTR(-EFAULT);
2950                }
2951
2952                priv->wdev.wiphy = wiphy;
2953                priv->wdev.iftype = NL80211_IFTYPE_AP;
2954
2955                priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2956                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2957                priv->bss_priority = 0;
2958                priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2959                priv->bss_started = 0;
2960                priv->bss_mode = type;
2961
2962                break;
2963        case NL80211_IFTYPE_P2P_CLIENT:
2964                if (adapter->curr_iface_comb.p2p_intf ==
2965                    adapter->iface_limit.p2p_intf) {
2966                        mwifiex_dbg(adapter, ERROR,
2967                                    "cannot create multiple P2P ifaces\n");
2968                        return ERR_PTR(-EINVAL);
2969                }
2970
2971                priv = mwifiex_get_unused_priv_by_bss_type(
2972                                                adapter, MWIFIEX_BSS_TYPE_P2P);
2973                if (!priv) {
2974                        mwifiex_dbg(adapter, ERROR,
2975                                    "could not get free private struct\n");
2976                        return ERR_PTR(-EFAULT);
2977                }
2978
2979                priv->wdev.wiphy = wiphy;
2980                /* At start-up, wpa_supplicant tries to change the interface
2981                 * to NL80211_IFTYPE_STATION if it is not managed mode.
2982                 */
2983                priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2984                priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2985
2986                /* Setting bss_type to P2P tells firmware that this interface
2987                 * is receiving P2P peers found during find phase and doing
2988                 * action frame handshake.
2989                 */
2990                priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2991
2992                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2993                priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2994                priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2995                priv->bss_started = 0;
2996
2997                if (mwifiex_cfg80211_init_p2p_client(priv)) {
2998                        memset(&priv->wdev, 0, sizeof(priv->wdev));
2999                        priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3000                        return ERR_PTR(-EFAULT);
3001                }
3002
3003                break;
3004        default:
3005                mwifiex_dbg(adapter, ERROR, "type not supported\n");
3006                return ERR_PTR(-EINVAL);
3007        }
3008
3009        dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3010                               name_assign_type, ether_setup,
3011                               IEEE80211_NUM_ACS, 1);
3012        if (!dev) {
3013                mwifiex_dbg(adapter, ERROR,
3014                            "no memory available for netdevice\n");
3015                ret = -ENOMEM;
3016                goto err_alloc_netdev;
3017        }
3018
3019        mwifiex_init_priv_params(priv, dev);
3020
3021        priv->netdev = dev;
3022
3023        if (!adapter->mfg_mode) {
3024                mwifiex_set_mac_address(priv, dev, false, NULL);
3025
3026                ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3027                                       HostCmd_ACT_GEN_SET, 0, NULL, true);
3028                if (ret)
3029                        goto err_set_bss_mode;
3030
3031                ret = mwifiex_sta_init_cmd(priv, false, false);
3032                if (ret)
3033                        goto err_sta_init;
3034        }
3035
3036        mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3037        if (adapter->is_hw_11ac_capable)
3038                mwifiex_setup_vht_caps(
3039                        &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3040
3041        if (adapter->config_bands & BAND_A)
3042                mwifiex_setup_ht_caps(
3043                        &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3044
3045        if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3046                mwifiex_setup_vht_caps(
3047                        &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3048
3049        dev_net_set(dev, wiphy_net(wiphy));
3050        dev->ieee80211_ptr = &priv->wdev;
3051        dev->ieee80211_ptr->iftype = priv->bss_mode;
3052        SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3053
3054        dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3055        dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3056        dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
3057        dev->ethtool_ops = &mwifiex_ethtool_ops;
3058
3059        mdev_priv = netdev_priv(dev);
3060        *((unsigned long *) mdev_priv) = (unsigned long) priv;
3061
3062        SET_NETDEV_DEV(dev, adapter->dev);
3063
3064        priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3065                                                  WQ_HIGHPRI |
3066                                                  WQ_MEM_RECLAIM |
3067                                                  WQ_UNBOUND, 1, name);
3068        if (!priv->dfs_cac_workqueue) {
3069                mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3070                ret = -ENOMEM;
3071                goto err_alloc_cac;
3072        }
3073
3074        INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3075
3076        priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3077                                                      WQ_HIGHPRI | WQ_UNBOUND |
3078                                                      WQ_MEM_RECLAIM, 1, name);
3079        if (!priv->dfs_chan_sw_workqueue) {
3080                mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3081                ret = -ENOMEM;
3082                goto err_alloc_chsw;
3083        }
3084
3085        INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3086                          mwifiex_dfs_chan_sw_work_queue);
3087
3088        mutex_init(&priv->async_mutex);
3089
3090        /* Register network device */
3091        if (register_netdevice(dev)) {
3092                mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3093                ret = -EFAULT;
3094                goto err_reg_netdev;
3095        }
3096
3097        mwifiex_dbg(adapter, INFO,
3098                    "info: %s: Marvell 802.11 Adapter\n", dev->name);
3099
3100#ifdef CONFIG_DEBUG_FS
3101        mwifiex_dev_debugfs_init(priv);
3102#endif
3103
3104        switch (type) {
3105        case NL80211_IFTYPE_UNSPECIFIED:
3106        case NL80211_IFTYPE_STATION:
3107        case NL80211_IFTYPE_ADHOC:
3108                adapter->curr_iface_comb.sta_intf++;
3109                break;
3110        case NL80211_IFTYPE_AP:
3111                adapter->curr_iface_comb.uap_intf++;
3112                break;
3113        case NL80211_IFTYPE_P2P_CLIENT:
3114                adapter->curr_iface_comb.p2p_intf++;
3115                break;
3116        default:
3117                /* This should be dead code; checked above */
3118                mwifiex_dbg(adapter, ERROR, "type not supported\n");
3119                return ERR_PTR(-EINVAL);
3120        }
3121
3122        return &priv->wdev;
3123
3124err_reg_netdev:
3125        destroy_workqueue(priv->dfs_chan_sw_workqueue);
3126        priv->dfs_chan_sw_workqueue = NULL;
3127err_alloc_chsw:
3128        destroy_workqueue(priv->dfs_cac_workqueue);
3129        priv->dfs_cac_workqueue = NULL;
3130err_alloc_cac:
3131        free_netdev(dev);
3132        priv->netdev = NULL;
3133err_sta_init:
3134err_set_bss_mode:
3135err_alloc_netdev:
3136        memset(&priv->wdev, 0, sizeof(priv->wdev));
3137        priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3138        priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3139        return ERR_PTR(ret);
3140}
3141EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3142
3143/*
3144 * del_virtual_intf: remove the virtual interface determined by dev
3145 */
3146int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3147{
3148        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3149        struct mwifiex_adapter *adapter = priv->adapter;
3150        struct sk_buff *skb, *tmp;
3151
3152#ifdef CONFIG_DEBUG_FS
3153        mwifiex_dev_debugfs_remove(priv);
3154#endif
3155
3156        if (priv->sched_scanning)
3157                priv->sched_scanning = false;
3158
3159        mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3160
3161        skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3162                skb_unlink(skb, &priv->bypass_txq);
3163                mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3164        }
3165
3166        if (netif_carrier_ok(priv->netdev))
3167                netif_carrier_off(priv->netdev);
3168
3169        if (wdev->netdev->reg_state == NETREG_REGISTERED)
3170                unregister_netdevice(wdev->netdev);
3171
3172        if (priv->dfs_cac_workqueue) {
3173                flush_workqueue(priv->dfs_cac_workqueue);
3174                destroy_workqueue(priv->dfs_cac_workqueue);
3175                priv->dfs_cac_workqueue = NULL;
3176        }
3177
3178        if (priv->dfs_chan_sw_workqueue) {
3179                flush_workqueue(priv->dfs_chan_sw_workqueue);
3180                destroy_workqueue(priv->dfs_chan_sw_workqueue);
3181                priv->dfs_chan_sw_workqueue = NULL;
3182        }
3183        /* Clear the priv in adapter */
3184        priv->netdev = NULL;
3185
3186        switch (priv->bss_mode) {
3187        case NL80211_IFTYPE_UNSPECIFIED:
3188        case NL80211_IFTYPE_STATION:
3189        case NL80211_IFTYPE_ADHOC:
3190                adapter->curr_iface_comb.sta_intf--;
3191                break;
3192        case NL80211_IFTYPE_AP:
3193                adapter->curr_iface_comb.uap_intf--;
3194                break;
3195        case NL80211_IFTYPE_P2P_CLIENT:
3196        case NL80211_IFTYPE_P2P_GO:
3197                adapter->curr_iface_comb.p2p_intf--;
3198                break;
3199        default:
3200                mwifiex_dbg(adapter, ERROR,
3201                            "del_virtual_intf: type not supported\n");
3202                break;
3203        }
3204
3205        priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3206
3207        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3208            GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3209                kfree(priv->hist_data);
3210
3211        return 0;
3212}
3213EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3214
3215static bool
3216mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3217                             u8 max_byte_seq)
3218{
3219        int j, k, valid_byte_cnt = 0;
3220        bool dont_care_byte = false;
3221
3222        for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3223                for (k = 0; k < 8; k++) {
3224                        if (pat->mask[j] & 1 << k) {
3225                                memcpy(byte_seq + valid_byte_cnt,
3226                                       &pat->pattern[j * 8 + k], 1);
3227                                valid_byte_cnt++;
3228                                if (dont_care_byte)
3229                                        return false;
3230                        } else {
3231                                if (valid_byte_cnt)
3232                                        dont_care_byte = true;
3233                        }
3234
3235                        /* wildcard bytes record as the offset
3236                         * before the valid byte
3237                         */
3238                        if (!valid_byte_cnt && !dont_care_byte)
3239                                pat->pkt_offset++;
3240
3241                        if (valid_byte_cnt > max_byte_seq)
3242                                return false;
3243                }
3244        }
3245
3246        byte_seq[max_byte_seq] = valid_byte_cnt;
3247
3248        return true;
3249}
3250
3251#ifdef CONFIG_PM
3252static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3253                                           struct mwifiex_mef_entry *mef_entry)
3254{
3255        int i, filt_num = 0, num_ipv4 = 0;
3256        struct in_device *in_dev;
3257        struct in_ifaddr *ifa;
3258        __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3259        struct mwifiex_adapter *adapter = priv->adapter;
3260
3261        mef_entry->mode = MEF_MODE_HOST_SLEEP;
3262        mef_entry->action = MEF_ACTION_AUTO_ARP;
3263
3264        /* Enable ARP offload feature */
3265        memset(ips, 0, sizeof(ips));
3266        for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3267                if (adapter->priv[i]->netdev) {
3268                        in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3269                        if (!in_dev)
3270                                continue;
3271                        ifa = in_dev->ifa_list;
3272                        if (!ifa || !ifa->ifa_local)
3273                                continue;
3274                        ips[i] = ifa->ifa_local;
3275                        num_ipv4++;
3276                }
3277        }
3278
3279        for (i = 0; i < num_ipv4; i++) {
3280                if (!ips[i])
3281                        continue;
3282                mef_entry->filter[filt_num].repeat = 1;
3283                memcpy(mef_entry->filter[filt_num].byte_seq,
3284                       (u8 *)&ips[i], sizeof(ips[i]));
3285                mef_entry->filter[filt_num].
3286                        byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3287                        sizeof(ips[i]);
3288                mef_entry->filter[filt_num].offset = 46;
3289                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3290                if (filt_num) {
3291                        mef_entry->filter[filt_num].filt_action =
3292                                TYPE_OR;
3293                }
3294                filt_num++;
3295        }
3296
3297        mef_entry->filter[filt_num].repeat = 1;
3298        mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3299        mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3300        mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3301        mef_entry->filter[filt_num].offset = 20;
3302        mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3303        mef_entry->filter[filt_num].filt_action = TYPE_AND;
3304}
3305
3306static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3307                                        struct mwifiex_ds_mef_cfg *mef_cfg,
3308                                        struct mwifiex_mef_entry *mef_entry,
3309                                        struct cfg80211_wowlan *wowlan)
3310{
3311        int i, filt_num = 0, ret = 0;
3312        bool first_pat = true;
3313        u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3314        static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3315        static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3316
3317        mef_entry->mode = MEF_MODE_HOST_SLEEP;
3318        mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3319
3320        for (i = 0; i < wowlan->n_patterns; i++) {
3321                memset(byte_seq, 0, sizeof(byte_seq));
3322                if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3323                                        byte_seq,
3324                                        MWIFIEX_MEF_MAX_BYTESEQ)) {
3325                        mwifiex_dbg(priv->adapter, ERROR,
3326                                    "Pattern not supported\n");
3327                        return -EOPNOTSUPP;
3328                }
3329
3330                if (!wowlan->patterns[i].pkt_offset) {
3331                        if (!(byte_seq[0] & 0x01) &&
3332                            (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3333                                mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3334                                continue;
3335                        } else if (is_broadcast_ether_addr(byte_seq)) {
3336                                mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3337                                continue;
3338                        } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3339                                    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3340                                   (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3341                                    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3342                                mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3343                                continue;
3344                        }
3345                }
3346                mef_entry->filter[filt_num].repeat = 1;
3347                mef_entry->filter[filt_num].offset =
3348                        wowlan->patterns[i].pkt_offset;
3349                memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3350                                sizeof(byte_seq));
3351                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3352
3353                if (first_pat) {
3354                        first_pat = false;
3355                        mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3356                } else {
3357                        mef_entry->filter[filt_num].filt_action = TYPE_AND;
3358                }
3359
3360                filt_num++;
3361        }
3362
3363        if (wowlan->magic_pkt) {
3364                mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3365                mef_entry->filter[filt_num].repeat = 16;
3366                memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3367                                ETH_ALEN);
3368                mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3369                        ETH_ALEN;
3370                mef_entry->filter[filt_num].offset = 28;
3371                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3372                if (filt_num)
3373                        mef_entry->filter[filt_num].filt_action = TYPE_OR;
3374
3375                filt_num++;
3376                mef_entry->filter[filt_num].repeat = 16;
3377                memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3378                                ETH_ALEN);
3379                mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3380                        ETH_ALEN;
3381                mef_entry->filter[filt_num].offset = 56;
3382                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3383                mef_entry->filter[filt_num].filt_action = TYPE_OR;
3384                mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3385        }
3386        return ret;
3387}
3388
3389static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3390                                  struct cfg80211_wowlan *wowlan)
3391{
3392        int ret = 0, num_entries = 1;
3393        struct mwifiex_ds_mef_cfg mef_cfg;
3394        struct mwifiex_mef_entry *mef_entry;
3395
3396        if (wowlan->n_patterns || wowlan->magic_pkt)
3397                num_entries++;
3398
3399        mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3400        if (!mef_entry)
3401                return -ENOMEM;
3402
3403        memset(&mef_cfg, 0, sizeof(mef_cfg));
3404        mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3405                MWIFIEX_CRITERIA_UNICAST;
3406        mef_cfg.num_entries = num_entries;
3407        mef_cfg.mef_entry = mef_entry;
3408
3409        mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3410
3411        if (wowlan->n_patterns || wowlan->magic_pkt) {
3412                ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3413                                                   &mef_entry[1], wowlan);
3414                if (ret)
3415                        goto err;
3416        }
3417
3418        if (!mef_cfg.criteria)
3419                mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3420                        MWIFIEX_CRITERIA_UNICAST |
3421                        MWIFIEX_CRITERIA_MULTICAST;
3422
3423        ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3424                        HostCmd_ACT_GEN_SET, 0,
3425                        &mef_cfg, true);
3426
3427err:
3428        kfree(mef_entry);
3429        return ret;
3430}
3431
3432static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3433                                    struct cfg80211_wowlan *wowlan)
3434{
3435        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3436        struct mwifiex_ds_hs_cfg hs_cfg;
3437        int i, ret = 0, retry_num = 10;
3438        struct mwifiex_private *priv;
3439        struct mwifiex_private *sta_priv =
3440                        mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3441
3442        sta_priv->scan_aborting = true;
3443        for (i = 0; i < adapter->priv_num; i++) {
3444                priv = adapter->priv[i];
3445                mwifiex_abort_cac(priv);
3446        }
3447
3448        mwifiex_cancel_all_pending_cmd(adapter);
3449
3450        for (i = 0; i < adapter->priv_num; i++) {
3451                priv = adapter->priv[i];
3452                if (priv && priv->netdev)
3453                        netif_device_detach(priv->netdev);
3454        }
3455
3456        for (i = 0; i < retry_num; i++) {
3457                if (!mwifiex_wmm_lists_empty(adapter) ||
3458                    !mwifiex_bypass_txlist_empty(adapter) ||
3459                    !skb_queue_empty(&adapter->tx_data_q))
3460                        usleep_range(10000, 15000);
3461                else
3462                        break;
3463        }
3464
3465        if (!wowlan) {
3466                mwifiex_dbg(adapter, ERROR,
3467                            "None of the WOWLAN triggers enabled\n");
3468                ret = 0;
3469                goto done;
3470        }
3471
3472        if (!sta_priv->media_connected && !wowlan->nd_config) {
3473                mwifiex_dbg(adapter, ERROR,
3474                            "Can not configure WOWLAN in disconnected state\n");
3475                ret = 0;
3476                goto done;
3477        }
3478
3479        ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3480        if (ret) {
3481                mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3482                goto done;
3483        }
3484
3485        memset(&hs_cfg, 0, sizeof(hs_cfg));
3486        hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3487
3488        if (wowlan->nd_config) {
3489                mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3490                hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3491                mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3492                                                  wowlan->nd_config);
3493        }
3494
3495        if (wowlan->disconnect) {
3496                hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3497                mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3498        }
3499
3500        hs_cfg.is_invoke_hostcmd = false;
3501        hs_cfg.gpio = adapter->hs_cfg.gpio;
3502        hs_cfg.gap = adapter->hs_cfg.gap;
3503        ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3504                                    MWIFIEX_SYNC_CMD, &hs_cfg);
3505        if (ret)
3506                mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3507
3508done:
3509        sta_priv->scan_aborting = false;
3510        return ret;
3511}
3512
3513static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3514{
3515        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3516        struct mwifiex_private *priv;
3517        struct mwifiex_ds_wakeup_reason wakeup_reason;
3518        struct cfg80211_wowlan_wakeup wakeup_report;
3519        int i;
3520        bool report_wakeup_reason = true;
3521
3522        for (i = 0; i < adapter->priv_num; i++) {
3523                priv = adapter->priv[i];
3524                if (priv && priv->netdev)
3525                        netif_device_attach(priv->netdev);
3526        }
3527
3528        if (!wiphy->wowlan_config)
3529                goto done;
3530
3531        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3532        mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3533                                  &wakeup_reason);
3534        memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3535
3536        wakeup_report.pattern_idx = -1;
3537
3538        switch (wakeup_reason.hs_wakeup_reason) {
3539        case NO_HSWAKEUP_REASON:
3540                break;
3541        case BCAST_DATA_MATCHED:
3542                break;
3543        case MCAST_DATA_MATCHED:
3544                break;
3545        case UCAST_DATA_MATCHED:
3546                break;
3547        case MASKTABLE_EVENT_MATCHED:
3548                break;
3549        case NON_MASKABLE_EVENT_MATCHED:
3550                if (wiphy->wowlan_config->disconnect)
3551                        wakeup_report.disconnect = true;
3552                if (wiphy->wowlan_config->nd_config)
3553                        wakeup_report.net_detect = adapter->nd_info;
3554                break;
3555        case NON_MASKABLE_CONDITION_MATCHED:
3556                break;
3557        case MAGIC_PATTERN_MATCHED:
3558                if (wiphy->wowlan_config->magic_pkt)
3559                        wakeup_report.magic_pkt = true;
3560                if (wiphy->wowlan_config->n_patterns)
3561                        wakeup_report.pattern_idx = 1;
3562                break;
3563        case GTK_REKEY_FAILURE:
3564                if (wiphy->wowlan_config->gtk_rekey_failure)
3565                        wakeup_report.gtk_rekey_failure = true;
3566                break;
3567        default:
3568                report_wakeup_reason = false;
3569                break;
3570        }
3571
3572        if (report_wakeup_reason)
3573                cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3574                                              GFP_KERNEL);
3575
3576done:
3577        if (adapter->nd_info) {
3578                for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3579                        kfree(adapter->nd_info->matches[i]);
3580                kfree(adapter->nd_info);
3581                adapter->nd_info = NULL;
3582        }
3583
3584        return 0;
3585}
3586
3587static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3588                                       bool enabled)
3589{
3590        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3591
3592        device_set_wakeup_enable(adapter->dev, enabled);
3593}
3594
3595static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3596                                  struct cfg80211_gtk_rekey_data *data)
3597{
3598        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3599
3600        if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3601                return -EOPNOTSUPP;
3602
3603        return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3604                                HostCmd_ACT_GEN_SET, 0, data, true);
3605}
3606
3607#endif
3608
3609static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3610{
3611        static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3612        static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3613        static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3614
3615        if ((byte_seq[0] & 0x01) &&
3616            (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3617                return PACKET_TYPE_UNICAST;
3618        else if (!memcmp(byte_seq, bc_mac, 4))
3619                return PACKET_TYPE_BROADCAST;
3620        else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3621                  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3622                 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3623                  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3624                return PACKET_TYPE_MULTICAST;
3625
3626        return 0;
3627}
3628
3629static int
3630mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3631                                struct cfg80211_coalesce_rules *crule,
3632                                struct mwifiex_coalesce_rule *mrule)
3633{
3634        u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3635        struct filt_field_param *param;
3636        int i;
3637
3638        mrule->max_coalescing_delay = crule->delay;
3639
3640        param = mrule->params;
3641
3642        for (i = 0; i < crule->n_patterns; i++) {
3643                memset(byte_seq, 0, sizeof(byte_seq));
3644                if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3645                                                  byte_seq,
3646                                                MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3647                        mwifiex_dbg(priv->adapter, ERROR,
3648                                    "Pattern not supported\n");
3649                        return -EOPNOTSUPP;
3650                }
3651
3652                if (!crule->patterns[i].pkt_offset) {
3653                        u8 pkt_type;
3654
3655                        pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3656                        if (pkt_type && mrule->pkt_type) {
3657                                mwifiex_dbg(priv->adapter, ERROR,
3658                                            "Multiple packet types not allowed\n");
3659                                return -EOPNOTSUPP;
3660                        } else if (pkt_type) {
3661                                mrule->pkt_type = pkt_type;
3662                                continue;
3663                        }
3664                }
3665
3666                if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3667                        param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3668                else
3669                        param->operation = RECV_FILTER_MATCH_TYPE_NE;
3670
3671                param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3672                memcpy(param->operand_byte_stream, byte_seq,
3673                       param->operand_len);
3674                param->offset = crule->patterns[i].pkt_offset;
3675                param++;
3676
3677                mrule->num_of_fields++;
3678        }
3679
3680        if (!mrule->pkt_type) {
3681                mwifiex_dbg(priv->adapter, ERROR,
3682                            "Packet type can not be determined\n");
3683                return -EOPNOTSUPP;
3684        }
3685
3686        return 0;
3687}
3688
3689static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3690                                         struct cfg80211_coalesce *coalesce)
3691{
3692        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3693        int i, ret;
3694        struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3695        struct mwifiex_private *priv =
3696                        mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3697
3698        memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3699        if (!coalesce) {
3700                mwifiex_dbg(adapter, WARN,
3701                            "Disable coalesce and reset all previous rules\n");
3702                return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3703                                        HostCmd_ACT_GEN_SET, 0,
3704                                        &coalesce_cfg, true);
3705        }
3706
3707        coalesce_cfg.num_of_rules = coalesce->n_rules;
3708        for (i = 0; i < coalesce->n_rules; i++) {
3709                ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3710                                                      &coalesce_cfg.rule[i]);
3711                if (ret) {
3712                        mwifiex_dbg(adapter, ERROR,
3713                                    "Recheck the patterns provided for rule %d\n",
3714                                i + 1);
3715                        return ret;
3716                }
3717        }
3718
3719        return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3720                                HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3721}
3722
3723/* cfg80211 ops handler for tdls_mgmt.
3724 * Function prepares TDLS action frame packets and forwards them to FW
3725 */
3726static int
3727mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3728                           const u8 *peer, u8 action_code, u8 dialog_token,
3729                           u16 status_code, u32 peer_capability,
3730                           bool initiator, const u8 *extra_ies,
3731                           size_t extra_ies_len)
3732{
3733        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3734        int ret;
3735
3736        if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3737                return -ENOTSUPP;
3738
3739        /* make sure we are in station mode and connected */
3740        if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3741                return -ENOTSUPP;
3742
3743        switch (action_code) {
3744        case WLAN_TDLS_SETUP_REQUEST:
3745                mwifiex_dbg(priv->adapter, MSG,
3746                            "Send TDLS Setup Request to %pM status_code=%d\n",
3747                            peer, status_code);
3748                mwifiex_add_auto_tdls_peer(priv, peer);
3749                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3750                                                   dialog_token, status_code,
3751                                                   extra_ies, extra_ies_len);
3752                break;
3753        case WLAN_TDLS_SETUP_RESPONSE:
3754                mwifiex_add_auto_tdls_peer(priv, peer);
3755                mwifiex_dbg(priv->adapter, MSG,
3756                            "Send TDLS Setup Response to %pM status_code=%d\n",
3757                            peer, status_code);
3758                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3759                                                   dialog_token, status_code,
3760                                                   extra_ies, extra_ies_len);
3761                break;
3762        case WLAN_TDLS_SETUP_CONFIRM:
3763                mwifiex_dbg(priv->adapter, MSG,
3764                            "Send TDLS Confirm to %pM status_code=%d\n", peer,
3765                            status_code);
3766                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3767                                                   dialog_token, status_code,
3768                                                   extra_ies, extra_ies_len);
3769                break;
3770        case WLAN_TDLS_TEARDOWN:
3771                mwifiex_dbg(priv->adapter, MSG,
3772                            "Send TDLS Tear down to %pM\n", peer);
3773                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3774                                                   dialog_token, status_code,
3775                                                   extra_ies, extra_ies_len);
3776                break;
3777        case WLAN_TDLS_DISCOVERY_REQUEST:
3778                mwifiex_dbg(priv->adapter, MSG,
3779                            "Send TDLS Discovery Request to %pM\n", peer);
3780                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3781                                                   dialog_token, status_code,
3782                                                   extra_ies, extra_ies_len);
3783                break;
3784        case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3785                mwifiex_dbg(priv->adapter, MSG,
3786                            "Send TDLS Discovery Response to %pM\n", peer);
3787                ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3788                                                   dialog_token, status_code,
3789                                                   extra_ies, extra_ies_len);
3790                break;
3791        default:
3792                mwifiex_dbg(priv->adapter, ERROR,
3793                            "Unknown TDLS mgmt/action frame %pM\n", peer);
3794                ret = -EINVAL;
3795                break;
3796        }
3797
3798        return ret;
3799}
3800
3801static int
3802mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3803                           const u8 *peer, enum nl80211_tdls_operation action)
3804{
3805        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3806
3807        if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3808            !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3809                return -ENOTSUPP;
3810
3811        /* make sure we are in station mode and connected */
3812        if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3813                return -ENOTSUPP;
3814
3815        mwifiex_dbg(priv->adapter, MSG,
3816                    "TDLS peer=%pM, oper=%d\n", peer, action);
3817
3818        switch (action) {
3819        case NL80211_TDLS_ENABLE_LINK:
3820                action = MWIFIEX_TDLS_ENABLE_LINK;
3821                break;
3822        case NL80211_TDLS_DISABLE_LINK:
3823                action = MWIFIEX_TDLS_DISABLE_LINK;
3824                break;
3825        case NL80211_TDLS_TEARDOWN:
3826                /* shouldn't happen!*/
3827                mwifiex_dbg(priv->adapter, ERROR,
3828                            "tdls_oper: teardown from driver not supported\n");
3829                return -EINVAL;
3830        case NL80211_TDLS_SETUP:
3831                /* shouldn't happen!*/
3832                mwifiex_dbg(priv->adapter, ERROR,
3833                            "tdls_oper: setup from driver not supported\n");
3834                return -EINVAL;
3835        case NL80211_TDLS_DISCOVERY_REQ:
3836                /* shouldn't happen!*/
3837                mwifiex_dbg(priv->adapter, ERROR,
3838                            "tdls_oper: discovery from driver not supported\n");
3839                return -EINVAL;
3840        default:
3841                mwifiex_dbg(priv->adapter, ERROR,
3842                            "tdls_oper: operation not supported\n");
3843                return -ENOTSUPP;
3844        }
3845
3846        return mwifiex_tdls_oper(priv, peer, action);
3847}
3848
3849static int
3850mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3851                                  const u8 *addr, u8 oper_class,
3852                                  struct cfg80211_chan_def *chandef)
3853{
3854        struct mwifiex_sta_node *sta_ptr;
3855        unsigned long flags;
3856        u16 chan;
3857        u8 second_chan_offset, band;
3858        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3859
3860        spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3861        sta_ptr = mwifiex_get_sta_entry(priv, addr);
3862        if (!sta_ptr) {
3863                spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3864                wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3865                          __func__, addr);
3866                return -ENOENT;
3867        }
3868
3869        if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3870              WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3871                spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3872                wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3873                return -ENOENT;
3874        }
3875
3876        if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3877            sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3878                spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3879                wiphy_err(wiphy, "channel switch is running, abort request\n");
3880                return -EALREADY;
3881        }
3882        spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3883
3884        chan = chandef->chan->hw_value;
3885        second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3886        band = chandef->chan->band;
3887        mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3888
3889        return 0;
3890}
3891
3892static void
3893mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3894                                         struct net_device *dev,
3895                                         const u8 *addr)
3896{
3897        struct mwifiex_sta_node *sta_ptr;
3898        unsigned long flags;
3899        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3900
3901        spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3902        sta_ptr = mwifiex_get_sta_entry(priv, addr);
3903        if (!sta_ptr) {
3904                spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3905                wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3906                          __func__, addr);
3907        } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3908                     sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3909                     sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3910                spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3911                wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3912                          addr);
3913        } else {
3914                spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3915                mwifiex_stop_tdls_cs(priv, addr);
3916        }
3917}
3918
3919static int
3920mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3921                             const u8 *mac, struct station_parameters *params)
3922{
3923        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3924
3925        if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3926                return -ENOTSUPP;
3927
3928        /* make sure we are in station mode and connected */
3929        if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3930                return -ENOTSUPP;
3931
3932        return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3933}
3934
3935static int
3936mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3937                                struct cfg80211_csa_settings *params)
3938{
3939        struct ieee_types_header *chsw_ie;
3940        struct ieee80211_channel_sw_ie *channel_sw;
3941        int chsw_msec;
3942        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3943
3944        if (priv->adapter->scan_processing) {
3945                mwifiex_dbg(priv->adapter, ERROR,
3946                            "radar detection: scan in process...\n");
3947                return -EBUSY;
3948        }
3949
3950        if (priv->wdev.cac_started)
3951                return -EBUSY;
3952
3953        if (cfg80211_chandef_identical(&params->chandef,
3954                                       &priv->dfs_chandef))
3955                return -EINVAL;
3956
3957        chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3958                                           params->beacon_csa.tail,
3959                                           params->beacon_csa.tail_len);
3960        if (!chsw_ie) {
3961                mwifiex_dbg(priv->adapter, ERROR,
3962                            "Could not parse channel switch announcement IE\n");
3963                return -EINVAL;
3964        }
3965
3966        channel_sw = (void *)(chsw_ie + 1);
3967        if (channel_sw->mode) {
3968                if (netif_carrier_ok(priv->netdev))
3969                        netif_carrier_off(priv->netdev);
3970                mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3971        }
3972
3973        if (mwifiex_del_mgmt_ies(priv))
3974                mwifiex_dbg(priv->adapter, ERROR,
3975                            "Failed to delete mgmt IEs!\n");
3976
3977        if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3978                mwifiex_dbg(priv->adapter, ERROR,
3979                            "%s: setting mgmt ies failed\n", __func__);
3980                return -EFAULT;
3981        }
3982
3983        memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3984        memcpy(&priv->beacon_after, &params->beacon_after,
3985               sizeof(priv->beacon_after));
3986
3987        chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3988        queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3989                           msecs_to_jiffies(chsw_msec));
3990        return 0;
3991}
3992
3993static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3994                                        struct wireless_dev *wdev,
3995                                        struct cfg80211_chan_def *chandef)
3996{
3997        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3998        struct mwifiex_bssdescriptor *curr_bss;
3999        struct ieee80211_channel *chan;
4000        enum nl80211_channel_type chan_type;
4001        enum nl80211_band band;
4002        int freq;
4003        int ret = -ENODATA;
4004
4005        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
4006            cfg80211_chandef_valid(&priv->bss_chandef)) {
4007                *chandef = priv->bss_chandef;
4008                ret = 0;
4009        } else if (priv->media_connected) {
4010                curr_bss = &priv->curr_bss_params.bss_descriptor;
4011                band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
4012                freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
4013                chan = ieee80211_get_channel(wiphy, freq);
4014
4015                if (priv->ht_param_present) {
4016                        chan_type = mwifiex_get_chan_type(priv);
4017                        cfg80211_chandef_create(chandef, chan, chan_type);
4018                } else {
4019                        cfg80211_chandef_create(chandef, chan,
4020                                                NL80211_CHAN_NO_HT);
4021                }
4022                ret = 0;
4023        }
4024
4025        return ret;
4026}
4027
4028#ifdef CONFIG_NL80211_TESTMODE
4029
4030enum mwifiex_tm_attr {
4031        __MWIFIEX_TM_ATTR_INVALID       = 0,
4032        MWIFIEX_TM_ATTR_CMD             = 1,
4033        MWIFIEX_TM_ATTR_DATA            = 2,
4034
4035        /* keep last */
4036        __MWIFIEX_TM_ATTR_AFTER_LAST,
4037        MWIFIEX_TM_ATTR_MAX             = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4038};
4039
4040static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4041        [MWIFIEX_TM_ATTR_CMD]           = { .type = NLA_U32 },
4042        [MWIFIEX_TM_ATTR_DATA]          = { .type = NLA_BINARY,
4043                                            .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4044};
4045
4046enum mwifiex_tm_command {
4047        MWIFIEX_TM_CMD_HOSTCMD  = 0,
4048};
4049
4050static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4051                          void *data, int len)
4052{
4053        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4054        struct mwifiex_ds_misc_cmd *hostcmd;
4055        struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4056        struct sk_buff *skb;
4057        int err;
4058
4059        if (!priv)
4060                return -EINVAL;
4061
4062        err = nla_parse(tb, MWIFIEX_TM_ATTR_MAX, data, len, mwifiex_tm_policy,
4063                        NULL);
4064        if (err)
4065                return err;
4066
4067        if (!tb[MWIFIEX_TM_ATTR_CMD])
4068                return -EINVAL;
4069
4070        switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4071        case MWIFIEX_TM_CMD_HOSTCMD:
4072                if (!tb[MWIFIEX_TM_ATTR_DATA])
4073                        return -EINVAL;
4074
4075                hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4076                if (!hostcmd)
4077                        return -ENOMEM;
4078
4079                hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4080                memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4081                       hostcmd->len);
4082
4083                if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4084                        dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4085                        return -EFAULT;
4086                }
4087
4088                /* process hostcmd response*/
4089                skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4090                if (!skb)
4091                        return -ENOMEM;
4092                err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4093                              hostcmd->len, hostcmd->cmd);
4094                if (err) {
4095                        kfree_skb(skb);
4096                        return -EMSGSIZE;
4097                }
4098
4099                err = cfg80211_testmode_reply(skb);
4100                kfree(hostcmd);
4101                return err;
4102        default:
4103                return -EOPNOTSUPP;
4104        }
4105}
4106#endif
4107
4108static int
4109mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4110                                       struct net_device *dev,
4111                                       struct cfg80211_chan_def *chandef,
4112                                       u32 cac_time_ms)
4113{
4114        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4115        struct mwifiex_radar_params radar_params;
4116
4117        if (priv->adapter->scan_processing) {
4118                mwifiex_dbg(priv->adapter, ERROR,
4119                            "radar detection: scan already in process...\n");
4120                return -EBUSY;
4121        }
4122
4123        if (!mwifiex_is_11h_active(priv)) {
4124                mwifiex_dbg(priv->adapter, INFO,
4125                            "Enable 11h extensions in FW\n");
4126                if (mwifiex_11h_activate(priv, true)) {
4127                        mwifiex_dbg(priv->adapter, ERROR,
4128                                    "Failed to activate 11h extensions!!");
4129                        return -1;
4130                }
4131                priv->state_11h.is_11h_active = true;
4132        }
4133
4134        memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4135        radar_params.chandef = chandef;
4136        radar_params.cac_time_ms = cac_time_ms;
4137
4138        memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4139
4140        if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4141                             HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4142                return -1;
4143
4144        queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4145                           msecs_to_jiffies(cac_time_ms));
4146        return 0;
4147}
4148
4149static int
4150mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4151                                const u8 *mac,
4152                                struct station_parameters *params)
4153{
4154        int ret;
4155        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4156
4157        /* we support change_station handler only for TDLS peers*/
4158        if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4159                return -ENOTSUPP;
4160
4161        /* make sure we are in station mode and connected */
4162        if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4163                return -ENOTSUPP;
4164
4165        priv->sta_params = params;
4166
4167        ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4168        priv->sta_params = NULL;
4169
4170        return ret;
4171}
4172
4173/* station cfg80211 operations */
4174static struct cfg80211_ops mwifiex_cfg80211_ops = {
4175        .add_virtual_intf = mwifiex_add_virtual_intf,
4176        .del_virtual_intf = mwifiex_del_virtual_intf,
4177        .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4178        .scan = mwifiex_cfg80211_scan,
4179        .connect = mwifiex_cfg80211_connect,
4180        .disconnect = mwifiex_cfg80211_disconnect,
4181        .get_station = mwifiex_cfg80211_get_station,
4182        .dump_station = mwifiex_cfg80211_dump_station,
4183        .dump_survey = mwifiex_cfg80211_dump_survey,
4184        .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4185        .join_ibss = mwifiex_cfg80211_join_ibss,
4186        .leave_ibss = mwifiex_cfg80211_leave_ibss,
4187        .add_key = mwifiex_cfg80211_add_key,
4188        .del_key = mwifiex_cfg80211_del_key,
4189        .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4190        .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4191        .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
4192        .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4193        .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4194        .set_default_key = mwifiex_cfg80211_set_default_key,
4195        .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4196        .set_tx_power = mwifiex_cfg80211_set_tx_power,
4197        .get_tx_power = mwifiex_cfg80211_get_tx_power,
4198        .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4199        .start_ap = mwifiex_cfg80211_start_ap,
4200        .stop_ap = mwifiex_cfg80211_stop_ap,
4201        .change_beacon = mwifiex_cfg80211_change_beacon,
4202        .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4203        .set_antenna = mwifiex_cfg80211_set_antenna,
4204        .get_antenna = mwifiex_cfg80211_get_antenna,
4205        .del_station = mwifiex_cfg80211_del_station,
4206        .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4207        .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4208#ifdef CONFIG_PM
4209        .suspend = mwifiex_cfg80211_suspend,
4210        .resume = mwifiex_cfg80211_resume,
4211        .set_wakeup = mwifiex_cfg80211_set_wakeup,
4212        .set_rekey_data = mwifiex_set_rekey_data,
4213#endif
4214        .set_coalesce = mwifiex_cfg80211_set_coalesce,
4215        .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4216        .tdls_oper = mwifiex_cfg80211_tdls_oper,
4217        .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4218        .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4219        .add_station = mwifiex_cfg80211_add_station,
4220        .change_station = mwifiex_cfg80211_change_station,
4221        CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4222        .get_channel = mwifiex_cfg80211_get_channel,
4223        .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4224        .channel_switch = mwifiex_cfg80211_channel_switch,
4225};
4226
4227#ifdef CONFIG_PM
4228static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4229        .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4230                WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4231                WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4232        .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4233        .pattern_min_len = 1,
4234        .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4235        .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4236        .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4237};
4238
4239static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4240        .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4241                 WIPHY_WOWLAN_NET_DETECT,
4242        .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4243        .pattern_min_len = 1,
4244        .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4245        .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4246        .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4247};
4248#endif
4249
4250static bool mwifiex_is_valid_alpha2(const char *alpha2)
4251{
4252        if (!alpha2 || strlen(alpha2) != 2)
4253                return false;
4254
4255        if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4256                return true;
4257
4258        return false;
4259}
4260
4261static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4262        .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4263        .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4264        .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4265        .pattern_min_len = 1,
4266        .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4267        .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4268};
4269
4270int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4271{
4272        u32 n_channels_bg, n_channels_a = 0;
4273
4274        n_channels_bg = mwifiex_band_2ghz.n_channels;
4275
4276        if (adapter->config_bands & BAND_A)
4277                n_channels_a = mwifiex_band_5ghz.n_channels;
4278
4279        /* allocate twice the number total channels, since the driver issues an
4280         * additional active scan request for hidden SSIDs on passive channels.
4281         */
4282        adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4283        adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats),
4284                                                 adapter->num_in_chan_stats));
4285
4286        if (!adapter->chan_stats)
4287                return -ENOMEM;
4288
4289        return 0;
4290}
4291
4292/*
4293 * This function registers the device with CFG802.11 subsystem.
4294 *
4295 * The function creates the wireless device/wiphy, populates it with
4296 * default parameters and handler function pointers, and finally
4297 * registers the device.
4298 */
4299
4300int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4301{
4302        int ret;
4303        void *wdev_priv;
4304        struct wiphy *wiphy;
4305        struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4306        u8 *country_code;
4307        u32 thr, retry;
4308
4309        /* create a new wiphy for use with cfg80211 */
4310        wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4311                          sizeof(struct mwifiex_adapter *));
4312        if (!wiphy) {
4313                mwifiex_dbg(adapter, ERROR,
4314                            "%s: creating new wiphy\n", __func__);
4315                return -ENOMEM;
4316        }
4317        wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4318        wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4319        wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4320        wiphy->max_remain_on_channel_duration = 5000;
4321        wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4322                                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4323                                 BIT(NL80211_IFTYPE_P2P_GO) |
4324                                 BIT(NL80211_IFTYPE_AP);
4325
4326        if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4327                wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4328
4329        wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4330        if (adapter->config_bands & BAND_A)
4331                wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4332        else
4333                wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4334
4335        if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4336                wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4337        else if (adapter->is_hw_11ac_capable)
4338                wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4339        else
4340                wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4341        wiphy->n_iface_combinations = 1;
4342
4343        /* Initialize cipher suits */
4344        wiphy->cipher_suites = mwifiex_cipher_suites;
4345        wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4346
4347        if (adapter->regd) {
4348                wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4349                                           REGULATORY_DISABLE_BEACON_HINTS |
4350                                           REGULATORY_COUNTRY_IE_IGNORE;
4351                wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4352        }
4353
4354        ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4355        wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4356        wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4357                        WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4358                        WIPHY_FLAG_AP_UAPSD |
4359                        WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4360                        WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4361                        WIPHY_FLAG_PS_ON_BY_DEFAULT;
4362
4363        if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4364                wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4365                                WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4366
4367#ifdef CONFIG_PM
4368        if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4369                wiphy->wowlan = &mwifiex_wowlan_support;
4370        else
4371                wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4372#endif
4373
4374        wiphy->coalesce = &mwifiex_coalesce_support;
4375
4376        wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4377                                    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4378                                    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4379
4380        wiphy->max_sched_scan_reqs = 1;
4381        wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4382        wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4383        wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4384
4385        wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4386        wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4387
4388        wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
4389                           NL80211_FEATURE_LOW_PRIORITY_SCAN |
4390                           NL80211_FEATURE_NEED_OBSS_SCAN;
4391
4392        if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4393                wiphy->features |= NL80211_FEATURE_HT_IBSS;
4394
4395        if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4396                wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4397                                   NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4398                                   NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4399
4400        if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4401                wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4402
4403        if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4404                wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4405
4406        /* Reserve space for mwifiex specific private data for BSS */
4407        wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4408
4409        wiphy->reg_notifier = mwifiex_reg_notifier;
4410
4411        /* Set struct mwifiex_adapter pointer in wiphy_priv */
4412        wdev_priv = wiphy_priv(wiphy);
4413        *(unsigned long *)wdev_priv = (unsigned long)adapter;
4414
4415        set_wiphy_dev(wiphy, priv->adapter->dev);
4416
4417        ret = wiphy_register(wiphy);
4418        if (ret < 0) {
4419                mwifiex_dbg(adapter, ERROR,
4420                            "%s: wiphy_register failed: %d\n", __func__, ret);
4421                wiphy_free(wiphy);
4422                return ret;
4423        }
4424
4425        if (!adapter->regd) {
4426                if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4427                        mwifiex_dbg(adapter, INFO,
4428                                    "driver hint alpha2: %2.2s\n", reg_alpha2);
4429                        regulatory_hint(wiphy, reg_alpha2);
4430                } else {
4431                        if (adapter->region_code == 0x00) {
4432                                mwifiex_dbg(adapter, WARN,
4433                                            "Ignore world regulatory domain\n");
4434                        } else {
4435                                wiphy->regulatory_flags |=
4436                                        REGULATORY_DISABLE_BEACON_HINTS |
4437                                        REGULATORY_COUNTRY_IE_IGNORE;
4438                                country_code =
4439                                        mwifiex_11d_code_2_region(
4440                                                adapter->region_code);
4441                                if (country_code &&
4442                                    regulatory_hint(wiphy, country_code))
4443                                        mwifiex_dbg(priv->adapter, ERROR,
4444                                                    "regulatory_hint() failed\n");
4445                        }
4446                }
4447        }
4448
4449        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4450                         HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4451        wiphy->frag_threshold = thr;
4452        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4453                         HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4454        wiphy->rts_threshold = thr;
4455        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4456                         HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4457        wiphy->retry_short = (u8) retry;
4458        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4459                         HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4460        wiphy->retry_long = (u8) retry;
4461
4462        adapter->wiphy = wiphy;
4463        return ret;
4464}
4465