linux/drivers/net/wireless/marvell/mwifiex/cfg80211.c
<<
>>
Prefs
   1/*
   2 * NXP Wireless LAN device driver: CFG80211
   3 *
   4 * Copyright 2011-2020 NXP
   5 *
   6 * This software file (the "File") is distributed by NXP
   7 * 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 = MWIFIEX_MAX_BSS_NUM,
  31                .types = BIT(NL80211_IFTYPE_STATION) |
  32                                   BIT(NL80211_IFTYPE_P2P_GO) |
  33                                   BIT(NL80211_IFTYPE_P2P_CLIENT) |
  34                                   BIT(NL80211_IFTYPE_AP),
  35        },
  36};
  37
  38static const struct ieee80211_iface_combination
  39mwifiex_iface_comb_ap_sta = {
  40        .limits = mwifiex_ap_sta_limits,
  41        .num_different_channels = 1,
  42        .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  43        .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  44        .beacon_int_infra_match = true,
  45        .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  46                                BIT(NL80211_CHAN_WIDTH_20) |
  47                                BIT(NL80211_CHAN_WIDTH_40),
  48};
  49
  50static const struct ieee80211_iface_combination
  51mwifiex_iface_comb_ap_sta_vht = {
  52        .limits = mwifiex_ap_sta_limits,
  53        .num_different_channels = 1,
  54        .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  55        .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  56        .beacon_int_infra_match = true,
  57        .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  58                                BIT(NL80211_CHAN_WIDTH_20) |
  59                                BIT(NL80211_CHAN_WIDTH_40) |
  60                                BIT(NL80211_CHAN_WIDTH_80),
  61};
  62
  63static const struct
  64ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  65        .limits = mwifiex_ap_sta_limits,
  66        .num_different_channels = 2,
  67        .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  68        .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  69        .beacon_int_infra_match = true,
  70};
  71
  72/*
  73 * This function maps the nl802.11 channel type into driver channel type.
  74 *
  75 * The mapping is as follows -
  76 *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  77 *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  78 *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  79 *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  80 *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  81 */
  82u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  83{
  84        switch (chan_type) {
  85        case NL80211_CHAN_NO_HT:
  86        case NL80211_CHAN_HT20:
  87                return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  88        case NL80211_CHAN_HT40PLUS:
  89                return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  90        case NL80211_CHAN_HT40MINUS:
  91                return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  92        default:
  93                return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  94        }
  95}
  96
  97/* This function maps IEEE HT secondary channel type to NL80211 channel type
  98 */
  99u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
 100{
 101        struct mwifiex_channel_band channel_band;
 102        int ret;
 103
 104        ret = mwifiex_get_chan_info(priv, &channel_band);
 105
 106        if (!ret) {
 107                switch (channel_band.band_config.chan_width) {
 108                case CHAN_BW_20MHZ:
 109                        if (IS_11N_ENABLED(priv))
 110                                return NL80211_CHAN_HT20;
 111                        else
 112                                return NL80211_CHAN_NO_HT;
 113                case CHAN_BW_40MHZ:
 114                        if (channel_band.band_config.chan2_offset ==
 115                            SEC_CHAN_ABOVE)
 116                                return NL80211_CHAN_HT40PLUS;
 117                        else
 118                                return NL80211_CHAN_HT40MINUS;
 119                default:
 120                        return NL80211_CHAN_HT20;
 121                }
 122        }
 123
 124        return NL80211_CHAN_HT20;
 125}
 126
 127/*
 128 * This function checks whether WEP is set.
 129 */
 130static int
 131mwifiex_is_alg_wep(u32 cipher)
 132{
 133        switch (cipher) {
 134        case WLAN_CIPHER_SUITE_WEP40:
 135        case WLAN_CIPHER_SUITE_WEP104:
 136                return 1;
 137        default:
 138                break;
 139        }
 140
 141        return 0;
 142}
 143
 144/*
 145 * This function retrieves the private structure from kernel wiphy structure.
 146 */
 147static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 148{
 149        return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 150}
 151
 152/*
 153 * CFG802.11 operation handler to delete a network key.
 154 */
 155static int
 156mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 157                         u8 key_index, bool pairwise, const u8 *mac_addr)
 158{
 159        struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 160        static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 161        const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 162
 163        if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 164                mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 165                return -EFAULT;
 166        }
 167
 168        mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 169        return 0;
 170}
 171
 172/*
 173 * This function forms an skb for management frame.
 174 */
 175static int
 176mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 177{
 178        u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 179        u16 pkt_len;
 180        u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 181
 182        pkt_len = len + ETH_ALEN;
 183
 184        skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 185                    MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 186        memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 187
 188        memcpy(skb_push(skb, sizeof(tx_control)),
 189               &tx_control, sizeof(tx_control));
 190
 191        memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 192
 193        /* Add packet data and address4 */
 194        skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
 195        skb_put_data(skb, addr, ETH_ALEN);
 196        skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
 197                     len - sizeof(struct ieee80211_hdr_3addr));
 198
 199        skb->priority = LOW_PRIO_TID;
 200        __net_timestamp(skb);
 201
 202        return 0;
 203}
 204
 205/*
 206 * CFG802.11 operation handler to transmit a management frame.
 207 */
 208static int
 209mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 210                         struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 211{
 212        const u8 *buf = params->buf;
 213        size_t len = params->len;
 214        struct sk_buff *skb;
 215        u16 pkt_len;
 216        const struct ieee80211_mgmt *mgmt;
 217        struct mwifiex_txinfo *tx_info;
 218        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 219
 220        if (!buf || !len) {
 221                mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 222                return -EFAULT;
 223        }
 224
 225        mgmt = (const struct ieee80211_mgmt *)buf;
 226        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 227            ieee80211_is_probe_resp(mgmt->frame_control)) {
 228                /* Since we support offload probe resp, we need to skip probe
 229                 * resp in AP or GO mode */
 230                mwifiex_dbg(priv->adapter, INFO,
 231                            "info: skip to send probe resp in AP or GO mode\n");
 232                return 0;
 233        }
 234
 235        pkt_len = len + ETH_ALEN;
 236        skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 237                            MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 238                            pkt_len + sizeof(pkt_len));
 239
 240        if (!skb) {
 241                mwifiex_dbg(priv->adapter, ERROR,
 242                            "allocate skb failed for management frame\n");
 243                return -ENOMEM;
 244        }
 245
 246        tx_info = MWIFIEX_SKB_TXCB(skb);
 247        memset(tx_info, 0, sizeof(*tx_info));
 248        tx_info->bss_num = priv->bss_num;
 249        tx_info->bss_type = priv->bss_type;
 250        tx_info->pkt_len = pkt_len;
 251
 252        mwifiex_form_mgmt_frame(skb, buf, len);
 253        *cookie = prandom_u32() | 1;
 254
 255        if (ieee80211_is_action(mgmt->frame_control))
 256                skb = mwifiex_clone_skb_for_tx_status(priv,
 257                                                      skb,
 258                                MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 259        else
 260                cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 261                                        GFP_ATOMIC);
 262
 263        mwifiex_queue_tx_pkt(priv, skb);
 264
 265        mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 266        return 0;
 267}
 268
 269/*
 270 * CFG802.11 operation handler to register a mgmt frame.
 271 */
 272static void
 273mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
 274                                                 struct wireless_dev *wdev,
 275                                                 struct mgmt_frame_regs *upd)
 276{
 277        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 278        u32 mask = upd->interface_stypes;
 279
 280        if (mask != priv->mgmt_frame_mask) {
 281                priv->mgmt_frame_mask = mask;
 282                mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 283                                 HostCmd_ACT_GEN_SET, 0,
 284                                 &priv->mgmt_frame_mask, false);
 285                mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 286        }
 287}
 288
 289/*
 290 * CFG802.11 operation handler to remain on channel.
 291 */
 292static int
 293mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 294                                   struct wireless_dev *wdev,
 295                                   struct ieee80211_channel *chan,
 296                                   unsigned int duration, u64 *cookie)
 297{
 298        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 299        int ret;
 300
 301        if (!chan || !cookie) {
 302                mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 303                return -EINVAL;
 304        }
 305
 306        if (priv->roc_cfg.cookie) {
 307                mwifiex_dbg(priv->adapter, INFO,
 308                            "info: ongoing ROC, cookie = 0x%llx\n",
 309                            priv->roc_cfg.cookie);
 310                return -EBUSY;
 311        }
 312
 313        ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 314                                         duration);
 315
 316        if (!ret) {
 317                *cookie = prandom_u32() | 1;
 318                priv->roc_cfg.cookie = *cookie;
 319                priv->roc_cfg.chan = *chan;
 320
 321                cfg80211_ready_on_channel(wdev, *cookie, chan,
 322                                          duration, GFP_ATOMIC);
 323
 324                mwifiex_dbg(priv->adapter, INFO,
 325                            "info: ROC, cookie = 0x%llx\n", *cookie);
 326        }
 327
 328        return ret;
 329}
 330
 331/*
 332 * CFG802.11 operation handler to cancel remain on channel.
 333 */
 334static int
 335mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 336                                          struct wireless_dev *wdev, u64 cookie)
 337{
 338        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 339        int ret;
 340
 341        if (cookie != priv->roc_cfg.cookie)
 342                return -ENOENT;
 343
 344        ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 345                                         &priv->roc_cfg.chan, 0);
 346
 347        if (!ret) {
 348                cfg80211_remain_on_channel_expired(wdev, cookie,
 349                                                   &priv->roc_cfg.chan,
 350                                                   GFP_ATOMIC);
 351
 352                memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 353
 354                mwifiex_dbg(priv->adapter, INFO,
 355                            "info: cancel ROC, cookie = 0x%llx\n", cookie);
 356        }
 357
 358        return ret;
 359}
 360
 361/*
 362 * CFG802.11 operation handler to set Tx power.
 363 */
 364static int
 365mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 366                              struct wireless_dev *wdev,
 367                              enum nl80211_tx_power_setting type,
 368                              int mbm)
 369{
 370        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 371        struct mwifiex_private *priv;
 372        struct mwifiex_power_cfg power_cfg;
 373        int dbm = MBM_TO_DBM(mbm);
 374
 375        switch (type) {
 376        case NL80211_TX_POWER_FIXED:
 377                power_cfg.is_power_auto = 0;
 378                power_cfg.is_power_fixed = 1;
 379                power_cfg.power_level = dbm;
 380                break;
 381        case NL80211_TX_POWER_LIMITED:
 382                power_cfg.is_power_auto = 0;
 383                power_cfg.is_power_fixed = 0;
 384                power_cfg.power_level = dbm;
 385                break;
 386        case NL80211_TX_POWER_AUTOMATIC:
 387                power_cfg.is_power_auto = 1;
 388                break;
 389        }
 390
 391        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 392
 393        return mwifiex_set_tx_power(priv, &power_cfg);
 394}
 395
 396/*
 397 * CFG802.11 operation handler to get Tx power.
 398 */
 399static int
 400mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 401                              struct wireless_dev *wdev,
 402                              int *dbm)
 403{
 404        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 405        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 406                                                        MWIFIEX_BSS_ROLE_ANY);
 407        int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 408                                   HostCmd_ACT_GEN_GET, 0, NULL, true);
 409
 410        if (ret < 0)
 411                return ret;
 412
 413        /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 414        *dbm = priv->tx_power_level;
 415
 416        return 0;
 417}
 418
 419/*
 420 * CFG802.11 operation handler to set Power Save option.
 421 *
 422 * The timeout value, if provided, is currently ignored.
 423 */
 424static int
 425mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 426                                struct net_device *dev,
 427                                bool enabled, int timeout)
 428{
 429        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 430        u32 ps_mode;
 431
 432        if (timeout)
 433                mwifiex_dbg(priv->adapter, INFO,
 434                            "info: ignore timeout value for IEEE Power Save\n");
 435
 436        ps_mode = enabled;
 437
 438        return mwifiex_drv_set_power(priv, &ps_mode);
 439}
 440
 441/*
 442 * CFG802.11 operation handler to set the default network key.
 443 */
 444static int
 445mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 446                                 u8 key_index, bool unicast,
 447                                 bool multicast)
 448{
 449        struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 450
 451        /* Return if WEP key not configured */
 452        if (!priv->sec_info.wep_enabled)
 453                return 0;
 454
 455        if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 456                priv->wep_key_curr_index = key_index;
 457        } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 458                                      NULL, 0)) {
 459                mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 460                return -EFAULT;
 461        }
 462
 463        return 0;
 464}
 465
 466/*
 467 * CFG802.11 operation handler to add a network key.
 468 */
 469static int
 470mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 471                         u8 key_index, bool pairwise, const u8 *mac_addr,
 472                         struct key_params *params)
 473{
 474        struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 475        struct mwifiex_wep_key *wep_key;
 476        static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 477        const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 478
 479        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 480            (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 481             params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 482                if (params->key && params->key_len) {
 483                        wep_key = &priv->wep_key[key_index];
 484                        memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 485                        memcpy(wep_key->key_material, params->key,
 486                               params->key_len);
 487                        wep_key->key_index = key_index;
 488                        wep_key->key_length = params->key_len;
 489                        priv->sec_info.wep_enabled = 1;
 490                }
 491                return 0;
 492        }
 493
 494        if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 495                               key_index, peer_mac, 0)) {
 496                mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 497                return -EFAULT;
 498        }
 499
 500        return 0;
 501}
 502
 503/*
 504 * CFG802.11 operation handler to set default mgmt key.
 505 */
 506static int
 507mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
 508                                      struct net_device *netdev,
 509                                      u8 key_index)
 510{
 511        struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 512        struct mwifiex_ds_encrypt_key encrypt_key;
 513
 514        wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
 515
 516        memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 517        encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
 518        encrypt_key.key_index = key_index;
 519        encrypt_key.is_igtk_def_key = true;
 520        eth_broadcast_addr(encrypt_key.mac_addr);
 521
 522        return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 523                                HostCmd_ACT_GEN_SET, true, &encrypt_key, true);
 524}
 525
 526/*
 527 * This function sends domain information to the firmware.
 528 *
 529 * The following information are passed to the firmware -
 530 *      - Country codes
 531 *      - Sub bands (first channel, number of channels, maximum Tx power)
 532 */
 533int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 534{
 535        u8 no_of_triplet = 0;
 536        struct ieee80211_country_ie_triplet *t;
 537        u8 no_of_parsed_chan = 0;
 538        u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 539        u8 i, flag = 0;
 540        enum nl80211_band band;
 541        struct ieee80211_supported_band *sband;
 542        struct ieee80211_channel *ch;
 543        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 544        struct mwifiex_private *priv;
 545        struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 546
 547        /* Set country code */
 548        domain_info->country_code[0] = adapter->country_code[0];
 549        domain_info->country_code[1] = adapter->country_code[1];
 550        domain_info->country_code[2] = ' ';
 551
 552        band = mwifiex_band_to_radio_type(adapter->config_bands);
 553        if (!wiphy->bands[band]) {
 554                mwifiex_dbg(adapter, ERROR,
 555                            "11D: setting domain info in FW\n");
 556                return -1;
 557        }
 558
 559        sband = wiphy->bands[band];
 560
 561        for (i = 0; i < sband->n_channels ; i++) {
 562                ch = &sband->channels[i];
 563                if (ch->flags & IEEE80211_CHAN_DISABLED)
 564                        continue;
 565
 566                if (!flag) {
 567                        flag = 1;
 568                        first_chan = (u32) ch->hw_value;
 569                        next_chan = first_chan;
 570                        max_pwr = ch->max_power;
 571                        no_of_parsed_chan = 1;
 572                        continue;
 573                }
 574
 575                if (ch->hw_value == next_chan + 1 &&
 576                    ch->max_power == max_pwr) {
 577                        next_chan++;
 578                        no_of_parsed_chan++;
 579                } else {
 580                        t = &domain_info->triplet[no_of_triplet];
 581                        t->chans.first_channel = first_chan;
 582                        t->chans.num_channels = no_of_parsed_chan;
 583                        t->chans.max_power = max_pwr;
 584                        no_of_triplet++;
 585                        first_chan = (u32) ch->hw_value;
 586                        next_chan = first_chan;
 587                        max_pwr = ch->max_power;
 588                        no_of_parsed_chan = 1;
 589                }
 590        }
 591
 592        if (flag) {
 593                t = &domain_info->triplet[no_of_triplet];
 594                t->chans.first_channel = first_chan;
 595                t->chans.num_channels = no_of_parsed_chan;
 596                t->chans.max_power = max_pwr;
 597                no_of_triplet++;
 598        }
 599
 600        domain_info->no_of_triplet = no_of_triplet;
 601
 602        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 603
 604        if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 605                             HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 606                mwifiex_dbg(adapter, INFO,
 607                            "11D: setting domain info in FW\n");
 608                return -1;
 609        }
 610
 611        return 0;
 612}
 613
 614static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
 615{
 616        struct ieee80211_supported_band *sband;
 617        struct ieee80211_channel *chan;
 618        unsigned int i;
 619
 620        if (!wiphy->bands[NL80211_BAND_5GHZ])
 621                return;
 622        sband = wiphy->bands[NL80211_BAND_5GHZ];
 623
 624        for (i = 0; i < sband->n_channels; i++) {
 625                chan = &sband->channels[i];
 626                if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
 627                    (chan->flags & IEEE80211_CHAN_RADAR))
 628                        chan->flags |= IEEE80211_CHAN_NO_IR;
 629        }
 630}
 631
 632/*
 633 * CFG802.11 regulatory domain callback function.
 634 *
 635 * This function is called when the regulatory domain is changed due to the
 636 * following reasons -
 637 *      - Set by driver
 638 *      - Set by system core
 639 *      - Set by user
 640 *      - Set bt Country IE
 641 */
 642static void mwifiex_reg_notifier(struct wiphy *wiphy,
 643                                 struct regulatory_request *request)
 644{
 645        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 646        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 647                                                        MWIFIEX_BSS_ROLE_ANY);
 648        mwifiex_dbg(adapter, INFO,
 649                    "info: cfg80211 regulatory domain callback for %c%c\n",
 650                    request->alpha2[0], request->alpha2[1]);
 651        mwifiex_reg_apply_radar_flags(wiphy);
 652
 653        switch (request->initiator) {
 654        case NL80211_REGDOM_SET_BY_DRIVER:
 655        case NL80211_REGDOM_SET_BY_CORE:
 656        case NL80211_REGDOM_SET_BY_USER:
 657        case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 658                break;
 659        default:
 660                mwifiex_dbg(adapter, ERROR,
 661                            "unknown regdom initiator: %d\n",
 662                            request->initiator);
 663                return;
 664        }
 665
 666        /* Don't send world or same regdom info to firmware */
 667        if (strncmp(request->alpha2, "00", 2) &&
 668            strncmp(request->alpha2, adapter->country_code,
 669                    sizeof(request->alpha2))) {
 670                memcpy(adapter->country_code, request->alpha2,
 671                       sizeof(request->alpha2));
 672                mwifiex_send_domain_info_cmd_fw(wiphy);
 673                mwifiex_dnld_txpwr_table(priv);
 674        }
 675}
 676
 677/*
 678 * This function sets the fragmentation threshold.
 679 *
 680 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 681 * and MWIFIEX_FRAG_MAX_VALUE.
 682 */
 683static int
 684mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 685{
 686        if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 687            frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 688                frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 689
 690        return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 691                                HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 692                                &frag_thr, true);
 693}
 694
 695/*
 696 * This function sets the RTS threshold.
 697
 698 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 699 * and MWIFIEX_RTS_MAX_VALUE.
 700 */
 701static int
 702mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 703{
 704        if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 705                rts_thr = MWIFIEX_RTS_MAX_VALUE;
 706
 707        return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 708                                HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 709                                &rts_thr, true);
 710}
 711
 712/*
 713 * CFG802.11 operation handler to set wiphy parameters.
 714 *
 715 * This function can be used to set the RTS threshold and the
 716 * Fragmentation threshold of the driver.
 717 */
 718static int
 719mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 720{
 721        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 722        struct mwifiex_private *priv;
 723        struct mwifiex_uap_bss_param *bss_cfg;
 724        int ret;
 725
 726        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 727
 728        switch (priv->bss_role) {
 729        case MWIFIEX_BSS_ROLE_UAP:
 730                if (priv->bss_started) {
 731                        mwifiex_dbg(adapter, ERROR,
 732                                    "cannot change wiphy params when bss started");
 733                        return -EINVAL;
 734                }
 735
 736                bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 737                if (!bss_cfg)
 738                        return -ENOMEM;
 739
 740                mwifiex_set_sys_config_invalid_data(bss_cfg);
 741
 742                if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 743                        bss_cfg->rts_threshold = wiphy->rts_threshold;
 744                if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 745                        bss_cfg->frag_threshold = wiphy->frag_threshold;
 746                if (changed & WIPHY_PARAM_RETRY_LONG)
 747                        bss_cfg->retry_limit = wiphy->retry_long;
 748
 749                ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 750                                       HostCmd_ACT_GEN_SET,
 751                                       UAP_BSS_PARAMS_I, bss_cfg,
 752                                       false);
 753
 754                kfree(bss_cfg);
 755                if (ret) {
 756                        mwifiex_dbg(adapter, ERROR,
 757                                    "Failed to set wiphy phy params\n");
 758                        return ret;
 759                }
 760                break;
 761
 762        case MWIFIEX_BSS_ROLE_STA:
 763                if (priv->media_connected) {
 764                        mwifiex_dbg(adapter, ERROR,
 765                                    "cannot change wiphy params when connected");
 766                        return -EINVAL;
 767                }
 768                if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 769                        ret = mwifiex_set_rts(priv,
 770                                              wiphy->rts_threshold);
 771                        if (ret)
 772                                return ret;
 773                }
 774                if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 775                        ret = mwifiex_set_frag(priv,
 776                                               wiphy->frag_threshold);
 777                        if (ret)
 778                                return ret;
 779                }
 780                break;
 781        }
 782
 783        return 0;
 784}
 785
 786static int
 787mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 788{
 789        u16 mode = P2P_MODE_DISABLE;
 790
 791        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 792                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 793                return -1;
 794
 795        return 0;
 796}
 797
 798/*
 799 * This function initializes the functionalities for P2P client.
 800 * The P2P client initialization sequence is:
 801 * disable -> device -> client
 802 */
 803static int
 804mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 805{
 806        u16 mode;
 807
 808        if (mwifiex_cfg80211_deinit_p2p(priv))
 809                return -1;
 810
 811        mode = P2P_MODE_DEVICE;
 812        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 813                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 814                return -1;
 815
 816        mode = P2P_MODE_CLIENT;
 817        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 818                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 819                return -1;
 820
 821        return 0;
 822}
 823
 824/*
 825 * This function initializes the functionalities for P2P GO.
 826 * The P2P GO initialization sequence is:
 827 * disable -> device -> GO
 828 */
 829static int
 830mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 831{
 832        u16 mode;
 833
 834        if (mwifiex_cfg80211_deinit_p2p(priv))
 835                return -1;
 836
 837        mode = P2P_MODE_DEVICE;
 838        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 839                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 840                return -1;
 841
 842        mode = P2P_MODE_GO;
 843        if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 844                             HostCmd_ACT_GEN_SET, 0, &mode, true))
 845                return -1;
 846
 847        return 0;
 848}
 849
 850static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 851{
 852        struct mwifiex_adapter *adapter = priv->adapter;
 853        unsigned long flags;
 854
 855        priv->mgmt_frame_mask = 0;
 856        if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 857                             HostCmd_ACT_GEN_SET, 0,
 858                             &priv->mgmt_frame_mask, false)) {
 859                mwifiex_dbg(adapter, ERROR,
 860                            "could not unregister mgmt frame rx\n");
 861                return -1;
 862        }
 863
 864        mwifiex_deauthenticate(priv, NULL);
 865
 866        spin_lock_irqsave(&adapter->main_proc_lock, flags);
 867        adapter->main_locked = true;
 868        if (adapter->mwifiex_processing) {
 869                spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 870                flush_workqueue(adapter->workqueue);
 871        } else {
 872                spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 873        }
 874
 875        spin_lock_bh(&adapter->rx_proc_lock);
 876        adapter->rx_locked = true;
 877        if (adapter->rx_processing) {
 878                spin_unlock_bh(&adapter->rx_proc_lock);
 879                flush_workqueue(adapter->rx_workqueue);
 880        } else {
 881        spin_unlock_bh(&adapter->rx_proc_lock);
 882        }
 883
 884        mwifiex_free_priv(priv);
 885        priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 886        priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 887        priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 888
 889        return 0;
 890}
 891
 892static int
 893mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 894                             struct net_device *dev,
 895                             enum nl80211_iftype type)
 896{
 897        struct mwifiex_adapter *adapter = priv->adapter;
 898        unsigned long flags;
 899
 900        mwifiex_init_priv(priv);
 901
 902        priv->bss_mode = type;
 903        priv->wdev.iftype = type;
 904
 905        mwifiex_init_priv_params(priv, priv->netdev);
 906        priv->bss_started = 0;
 907
 908        switch (type) {
 909        case NL80211_IFTYPE_STATION:
 910        case NL80211_IFTYPE_ADHOC:
 911                priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 912                break;
 913        case NL80211_IFTYPE_P2P_CLIENT:
 914                priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 915                break;
 916        case NL80211_IFTYPE_P2P_GO:
 917                priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 918                break;
 919        case NL80211_IFTYPE_AP:
 920                priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 921                break;
 922        default:
 923                mwifiex_dbg(adapter, ERROR,
 924                            "%s: changing to %d not supported\n",
 925                            dev->name, type);
 926                return -EOPNOTSUPP;
 927        }
 928
 929        spin_lock_irqsave(&adapter->main_proc_lock, flags);
 930        adapter->main_locked = false;
 931        spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 932
 933        spin_lock_bh(&adapter->rx_proc_lock);
 934        adapter->rx_locked = false;
 935        spin_unlock_bh(&adapter->rx_proc_lock);
 936
 937        mwifiex_set_mac_address(priv, dev, false, NULL);
 938
 939        return 0;
 940}
 941
 942static int
 943mwifiex_change_vif_to_p2p(struct net_device *dev,
 944                          enum nl80211_iftype curr_iftype,
 945                          enum nl80211_iftype type,
 946                          struct vif_params *params)
 947{
 948        struct mwifiex_private *priv;
 949        struct mwifiex_adapter *adapter;
 950
 951        priv = mwifiex_netdev_get_priv(dev);
 952
 953        if (!priv)
 954                return -1;
 955
 956        adapter = priv->adapter;
 957
 958        if (adapter->curr_iface_comb.p2p_intf ==
 959            adapter->iface_limit.p2p_intf) {
 960                mwifiex_dbg(adapter, ERROR,
 961                            "cannot create multiple P2P ifaces\n");
 962                return -1;
 963        }
 964
 965        mwifiex_dbg(adapter, INFO,
 966                    "%s: changing role to p2p\n", dev->name);
 967
 968        if (mwifiex_deinit_priv_params(priv))
 969                return -1;
 970        if (mwifiex_init_new_priv_params(priv, dev, type))
 971                return -1;
 972
 973        switch (type) {
 974        case NL80211_IFTYPE_P2P_CLIENT:
 975                if (mwifiex_cfg80211_init_p2p_client(priv))
 976                        return -EFAULT;
 977                break;
 978        case NL80211_IFTYPE_P2P_GO:
 979                if (mwifiex_cfg80211_init_p2p_go(priv))
 980                        return -EFAULT;
 981                break;
 982        default:
 983                mwifiex_dbg(adapter, ERROR,
 984                            "%s: changing to %d not supported\n",
 985                            dev->name, type);
 986                return -EOPNOTSUPP;
 987        }
 988
 989        if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 990                             HostCmd_ACT_GEN_SET, 0, NULL, true))
 991                return -1;
 992
 993        if (mwifiex_sta_init_cmd(priv, false, false))
 994                return -1;
 995
 996        switch (curr_iftype) {
 997        case NL80211_IFTYPE_STATION:
 998        case NL80211_IFTYPE_ADHOC:
 999                adapter->curr_iface_comb.sta_intf--;
1000                break;
1001        case NL80211_IFTYPE_AP:
1002                adapter->curr_iface_comb.uap_intf--;
1003                break;
1004        default:
1005                break;
1006        }
1007
1008        adapter->curr_iface_comb.p2p_intf++;
1009        dev->ieee80211_ptr->iftype = type;
1010
1011        return 0;
1012}
1013
1014static int
1015mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1016                                enum nl80211_iftype curr_iftype,
1017                                enum nl80211_iftype type,
1018                                struct vif_params *params)
1019{
1020        struct mwifiex_private *priv;
1021        struct mwifiex_adapter *adapter;
1022
1023        priv = mwifiex_netdev_get_priv(dev);
1024
1025        if (!priv)
1026                return -1;
1027
1028        adapter = priv->adapter;
1029
1030        if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
1031             curr_iftype != NL80211_IFTYPE_P2P_GO) &&
1032            (adapter->curr_iface_comb.sta_intf ==
1033             adapter->iface_limit.sta_intf)) {
1034                mwifiex_dbg(adapter, ERROR,
1035                            "cannot create multiple station/adhoc ifaces\n");
1036                return -1;
1037        }
1038
1039        if (type == NL80211_IFTYPE_STATION)
1040                mwifiex_dbg(adapter, INFO,
1041                            "%s: changing role to station\n", dev->name);
1042        else
1043                mwifiex_dbg(adapter, INFO,
1044                            "%s: changing role to adhoc\n", dev->name);
1045
1046        if (mwifiex_deinit_priv_params(priv))
1047                return -1;
1048        if (mwifiex_init_new_priv_params(priv, dev, type))
1049                return -1;
1050        if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1051                             HostCmd_ACT_GEN_SET, 0, NULL, true))
1052                return -1;
1053        if (mwifiex_sta_init_cmd(priv, false, false))
1054                return -1;
1055
1056        switch (curr_iftype) {
1057        case NL80211_IFTYPE_P2P_CLIENT:
1058        case NL80211_IFTYPE_P2P_GO:
1059                adapter->curr_iface_comb.p2p_intf--;
1060                break;
1061        case NL80211_IFTYPE_AP:
1062                adapter->curr_iface_comb.uap_intf--;
1063                break;
1064        default:
1065                break;
1066        }
1067
1068        adapter->curr_iface_comb.sta_intf++;
1069        dev->ieee80211_ptr->iftype = type;
1070        return 0;
1071}
1072
1073static int
1074mwifiex_change_vif_to_ap(struct net_device *dev,
1075                         enum nl80211_iftype curr_iftype,
1076                         enum nl80211_iftype type,
1077                         struct vif_params *params)
1078{
1079        struct mwifiex_private *priv;
1080        struct mwifiex_adapter *adapter;
1081
1082        priv = mwifiex_netdev_get_priv(dev);
1083
1084        if (!priv)
1085                return -1;
1086
1087        adapter = priv->adapter;
1088
1089        if (adapter->curr_iface_comb.uap_intf ==
1090            adapter->iface_limit.uap_intf) {
1091                mwifiex_dbg(adapter, ERROR,
1092                            "cannot create multiple AP ifaces\n");
1093                return -1;
1094        }
1095
1096        mwifiex_dbg(adapter, INFO,
1097                    "%s: changing role to AP\n", dev->name);
1098
1099        if (mwifiex_deinit_priv_params(priv))
1100                return -1;
1101        if (mwifiex_init_new_priv_params(priv, dev, type))
1102                return -1;
1103        if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1104                             HostCmd_ACT_GEN_SET, 0, NULL, true))
1105                return -1;
1106        if (mwifiex_sta_init_cmd(priv, false, false))
1107                return -1;
1108
1109        switch (curr_iftype) {
1110        case NL80211_IFTYPE_P2P_CLIENT:
1111        case NL80211_IFTYPE_P2P_GO:
1112                adapter->curr_iface_comb.p2p_intf--;
1113                break;
1114        case NL80211_IFTYPE_STATION:
1115        case NL80211_IFTYPE_ADHOC:
1116                adapter->curr_iface_comb.sta_intf--;
1117                break;
1118        default:
1119                break;
1120        }
1121
1122        adapter->curr_iface_comb.uap_intf++;
1123        dev->ieee80211_ptr->iftype = type;
1124        return 0;
1125}
1126/*
1127 * CFG802.11 operation handler to change interface type.
1128 */
1129static int
1130mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1131                                     struct net_device *dev,
1132                                     enum nl80211_iftype type,
1133                                     struct vif_params *params)
1134{
1135        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1136        enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1137
1138        if (priv->scan_request) {
1139                mwifiex_dbg(priv->adapter, ERROR,
1140                            "change virtual interface: scan in process\n");
1141                return -EBUSY;
1142        }
1143
1144        switch (curr_iftype) {
1145        case NL80211_IFTYPE_ADHOC:
1146                switch (type) {
1147                case NL80211_IFTYPE_STATION:
1148                        priv->bss_mode = type;
1149                        priv->sec_info.authentication_mode =
1150                                                   NL80211_AUTHTYPE_OPEN_SYSTEM;
1151                        dev->ieee80211_ptr->iftype = type;
1152                        mwifiex_deauthenticate(priv, NULL);
1153                        return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1154                                                HostCmd_ACT_GEN_SET, 0, NULL,
1155                                                true);
1156                case NL80211_IFTYPE_P2P_CLIENT:
1157                case NL80211_IFTYPE_P2P_GO:
1158                        return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1159                                                         type, params);
1160                case NL80211_IFTYPE_AP:
1161                        return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1162                                                        params);
1163                case NL80211_IFTYPE_UNSPECIFIED:
1164                        mwifiex_dbg(priv->adapter, INFO,
1165                                    "%s: kept type as IBSS\n", dev->name);
1166                        fallthrough;
1167                case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1168                        return 0;
1169                default:
1170                        mwifiex_dbg(priv->adapter, ERROR,
1171                                    "%s: changing to %d not supported\n",
1172                                    dev->name, type);
1173                        return -EOPNOTSUPP;
1174                }
1175                break;
1176        case NL80211_IFTYPE_STATION:
1177                switch (type) {
1178                case NL80211_IFTYPE_ADHOC:
1179                        priv->bss_mode = type;
1180                        priv->sec_info.authentication_mode =
1181                                                   NL80211_AUTHTYPE_OPEN_SYSTEM;
1182                        dev->ieee80211_ptr->iftype = type;
1183                        mwifiex_deauthenticate(priv, NULL);
1184                        return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1185                                                HostCmd_ACT_GEN_SET, 0, NULL,
1186                                                true);
1187                case NL80211_IFTYPE_P2P_CLIENT:
1188                case NL80211_IFTYPE_P2P_GO:
1189                        return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1190                                                         type, params);
1191                case NL80211_IFTYPE_AP:
1192                        return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1193                                                        params);
1194                case NL80211_IFTYPE_UNSPECIFIED:
1195                        mwifiex_dbg(priv->adapter, INFO,
1196                                    "%s: kept type as STA\n", dev->name);
1197                        fallthrough;
1198                case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1199                        return 0;
1200                default:
1201                        mwifiex_dbg(priv->adapter, ERROR,
1202                                    "%s: changing to %d not supported\n",
1203                                    dev->name, type);
1204                        return -EOPNOTSUPP;
1205                }
1206                break;
1207        case NL80211_IFTYPE_AP:
1208                switch (type) {
1209                case NL80211_IFTYPE_ADHOC:
1210                        return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1211                                                               type, params);
1212                        break;
1213                case NL80211_IFTYPE_P2P_CLIENT:
1214                case NL80211_IFTYPE_P2P_GO:
1215                        return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1216                                                         type, params);
1217                case NL80211_IFTYPE_UNSPECIFIED:
1218                        mwifiex_dbg(priv->adapter, INFO,
1219                                    "%s: kept type as AP\n", dev->name);
1220                        fallthrough;
1221                case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1222                        return 0;
1223                default:
1224                        mwifiex_dbg(priv->adapter, ERROR,
1225                                    "%s: changing to %d not supported\n",
1226                                    dev->name, type);
1227                        return -EOPNOTSUPP;
1228                }
1229                break;
1230        case NL80211_IFTYPE_P2P_CLIENT:
1231        case NL80211_IFTYPE_P2P_GO:
1232                switch (type) {
1233                case NL80211_IFTYPE_STATION:
1234                        if (mwifiex_cfg80211_deinit_p2p(priv))
1235                                return -EFAULT;
1236                        priv->adapter->curr_iface_comb.p2p_intf--;
1237                        priv->adapter->curr_iface_comb.sta_intf++;
1238                        dev->ieee80211_ptr->iftype = type;
1239                        if (mwifiex_deinit_priv_params(priv))
1240                                return -1;
1241                        if (mwifiex_init_new_priv_params(priv, dev, type))
1242                                return -1;
1243                        if (mwifiex_sta_init_cmd(priv, false, false))
1244                                return -1;
1245                        break;
1246                case NL80211_IFTYPE_ADHOC:
1247                        if (mwifiex_cfg80211_deinit_p2p(priv))
1248                                return -EFAULT;
1249                        return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1250                                                               type, params);
1251                        break;
1252                case NL80211_IFTYPE_AP:
1253                        if (mwifiex_cfg80211_deinit_p2p(priv))
1254                                return -EFAULT;
1255                        return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1256                                                        params);
1257                case NL80211_IFTYPE_UNSPECIFIED:
1258                        mwifiex_dbg(priv->adapter, INFO,
1259                                    "%s: kept type as P2P\n", dev->name);
1260                        fallthrough;
1261                case NL80211_IFTYPE_P2P_CLIENT:
1262                case NL80211_IFTYPE_P2P_GO:
1263                        return 0;
1264                default:
1265                        mwifiex_dbg(priv->adapter, ERROR,
1266                                    "%s: changing to %d not supported\n",
1267                                    dev->name, type);
1268                        return -EOPNOTSUPP;
1269                }
1270                break;
1271        default:
1272                mwifiex_dbg(priv->adapter, ERROR,
1273                            "%s: unknown iftype: %d\n",
1274                            dev->name, dev->ieee80211_ptr->iftype);
1275                return -EOPNOTSUPP;
1276        }
1277
1278
1279        return 0;
1280}
1281
1282static void
1283mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo,
1284                     struct rate_info *rate)
1285{
1286        struct mwifiex_adapter *adapter = priv->adapter;
1287
1288        if (adapter->is_hw_11ac_capable) {
1289                /* bit[1-0]: 00=LG 01=HT 10=VHT */
1290                if (htinfo & BIT(0)) {
1291                        /* HT */
1292                        rate->mcs = rateinfo;
1293                        rate->flags |= RATE_INFO_FLAGS_MCS;
1294                }
1295                if (htinfo & BIT(1)) {
1296                        /* VHT */
1297                        rate->mcs = rateinfo & 0x0F;
1298                        rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1299                }
1300
1301                if (htinfo & (BIT(1) | BIT(0))) {
1302                        /* HT or VHT */
1303                        switch (htinfo & (BIT(3) | BIT(2))) {
1304                        case 0:
1305                                rate->bw = RATE_INFO_BW_20;
1306                                break;
1307                        case (BIT(2)):
1308                                rate->bw = RATE_INFO_BW_40;
1309                                break;
1310                        case (BIT(3)):
1311                                rate->bw = RATE_INFO_BW_80;
1312                                break;
1313                        case (BIT(3) | BIT(2)):
1314                                rate->bw = RATE_INFO_BW_160;
1315                                break;
1316                        }
1317
1318                        if (htinfo & BIT(4))
1319                                rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1320
1321                        if ((rateinfo >> 4) == 1)
1322                                rate->nss = 2;
1323                        else
1324                                rate->nss = 1;
1325                }
1326        } else {
1327                /*
1328                 * Bit 0 in htinfo indicates that current rate is 11n. Valid
1329                 * MCS index values for us are 0 to 15.
1330                 */
1331                if ((htinfo & BIT(0)) && (rateinfo < 16)) {
1332                        rate->mcs = rateinfo;
1333                        rate->flags |= RATE_INFO_FLAGS_MCS;
1334                        rate->bw = RATE_INFO_BW_20;
1335                        if (htinfo & BIT(1))
1336                                rate->bw = RATE_INFO_BW_40;
1337                        if (htinfo & BIT(2))
1338                                rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1339                }
1340        }
1341
1342        /* Decode legacy rates for non-HT. */
1343        if (!(htinfo & (BIT(0) | BIT(1)))) {
1344                /* Bitrates in multiples of 100kb/s. */
1345                static const int legacy_rates[] = {
1346                        [0] = 10,
1347                        [1] = 20,
1348                        [2] = 55,
1349                        [3] = 110,
1350                        [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */
1351                        [5] = 60,
1352                        [6] = 90,
1353                        [7] = 120,
1354                        [8] = 180,
1355                        [9] = 240,
1356                        [10] = 360,
1357                        [11] = 480,
1358                        [12] = 540,
1359                };
1360                if (rateinfo < ARRAY_SIZE(legacy_rates))
1361                        rate->legacy = legacy_rates[rateinfo];
1362        }
1363}
1364
1365/*
1366 * This function dumps the station information on a buffer.
1367 *
1368 * The following information are shown -
1369 *      - Total bytes transmitted
1370 *      - Total bytes received
1371 *      - Total packets transmitted
1372 *      - Total packets received
1373 *      - Signal quality level
1374 *      - Transmission rate
1375 */
1376static int
1377mwifiex_dump_station_info(struct mwifiex_private *priv,
1378                          struct mwifiex_sta_node *node,
1379                          struct station_info *sinfo)
1380{
1381        u32 rate;
1382
1383        sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1384                        BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1385                        BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1386                        BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1387
1388        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1389                if (!node)
1390                        return -ENOENT;
1391
1392                sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1393                                BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1394                sinfo->inactive_time =
1395                        jiffies_to_msecs(jiffies - node->stats.last_rx);
1396
1397                sinfo->signal = node->stats.rssi;
1398                sinfo->signal_avg = node->stats.rssi;
1399                sinfo->rx_bytes = node->stats.rx_bytes;
1400                sinfo->tx_bytes = node->stats.tx_bytes;
1401                sinfo->rx_packets = node->stats.rx_packets;
1402                sinfo->tx_packets = node->stats.tx_packets;
1403                sinfo->tx_failed = node->stats.tx_failed;
1404
1405                mwifiex_parse_htinfo(priv, priv->tx_rate,
1406                                     node->stats.last_tx_htinfo,
1407                                     &sinfo->txrate);
1408                sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1409
1410                return 0;
1411        }
1412
1413        /* Get signal information from the firmware */
1414        if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1415                             HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1416                mwifiex_dbg(priv->adapter, ERROR,
1417                            "failed to get signal information\n");
1418                return -EFAULT;
1419        }
1420
1421        if (mwifiex_drv_get_data_rate(priv, &rate)) {
1422                mwifiex_dbg(priv->adapter, ERROR,
1423                            "getting data rate error\n");
1424                return -EFAULT;
1425        }
1426
1427        /* Get DTIM period information from firmware */
1428        mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1429                         HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1430                         &priv->dtim_period, true);
1431
1432        mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo,
1433                             &sinfo->txrate);
1434
1435        sinfo->signal_avg = priv->bcn_rssi_avg;
1436        sinfo->rx_bytes = priv->stats.rx_bytes;
1437        sinfo->tx_bytes = priv->stats.tx_bytes;
1438        sinfo->rx_packets = priv->stats.rx_packets;
1439        sinfo->tx_packets = priv->stats.tx_packets;
1440        sinfo->signal = priv->bcn_rssi_avg;
1441        /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1442        sinfo->txrate.legacy = rate * 5;
1443
1444        sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
1445        mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo,
1446                             &sinfo->rxrate);
1447
1448        if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1449                sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1450                sinfo->bss_param.flags = 0;
1451                if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1452                                                WLAN_CAPABILITY_SHORT_PREAMBLE)
1453                        sinfo->bss_param.flags |=
1454                                        BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1455                if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1456                                                WLAN_CAPABILITY_SHORT_SLOT_TIME)
1457                        sinfo->bss_param.flags |=
1458                                        BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1459                sinfo->bss_param.dtim_period = priv->dtim_period;
1460                sinfo->bss_param.beacon_interval =
1461                        priv->curr_bss_params.bss_descriptor.beacon_period;
1462        }
1463
1464        return 0;
1465}
1466
1467/*
1468 * CFG802.11 operation handler to get station information.
1469 *
1470 * This function only works in connected mode, and dumps the
1471 * requested station information, if available.
1472 */
1473static int
1474mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1475                             const u8 *mac, struct station_info *sinfo)
1476{
1477        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1478
1479        if (!priv->media_connected)
1480                return -ENOENT;
1481        if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1482                return -ENOENT;
1483
1484        return mwifiex_dump_station_info(priv, NULL, sinfo);
1485}
1486
1487/*
1488 * CFG802.11 operation handler to dump station information.
1489 */
1490static int
1491mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1492                              int idx, u8 *mac, struct station_info *sinfo)
1493{
1494        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1495        struct mwifiex_sta_node *node;
1496        int i;
1497
1498        if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1499            priv->media_connected && idx == 0) {
1500                ether_addr_copy(mac, priv->cfg_bssid);
1501                return mwifiex_dump_station_info(priv, NULL, sinfo);
1502        } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1503                mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1504                                 HostCmd_ACT_GEN_GET, 0, NULL, true);
1505
1506                i = 0;
1507                list_for_each_entry(node, &priv->sta_list, list) {
1508                        if (i++ != idx)
1509                                continue;
1510                        ether_addr_copy(mac, node->mac_addr);
1511                        return mwifiex_dump_station_info(priv, node, sinfo);
1512                }
1513        }
1514
1515        return -ENOENT;
1516}
1517
1518static int
1519mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1520                             int idx, struct survey_info *survey)
1521{
1522        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1523        struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1524        enum nl80211_band band;
1525
1526        mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1527
1528        memset(survey, 0, sizeof(struct survey_info));
1529
1530        if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1531            priv->media_connected && idx == 0) {
1532                        u8 curr_bss_band = priv->curr_bss_params.band;
1533                        u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1534
1535                        band = mwifiex_band_to_radio_type(curr_bss_band);
1536                        survey->channel = ieee80211_get_channel(wiphy,
1537                                ieee80211_channel_to_frequency(chan, band));
1538
1539                        if (priv->bcn_nf_last) {
1540                                survey->filled = SURVEY_INFO_NOISE_DBM;
1541                                survey->noise = priv->bcn_nf_last;
1542                        }
1543                        return 0;
1544        }
1545
1546        if (idx >= priv->adapter->num_in_chan_stats)
1547                return -ENOENT;
1548
1549        if (!pchan_stats[idx].cca_scan_dur)
1550                return 0;
1551
1552        band = pchan_stats[idx].bandcfg;
1553        survey->channel = ieee80211_get_channel(wiphy,
1554            ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1555        survey->filled = SURVEY_INFO_NOISE_DBM |
1556                         SURVEY_INFO_TIME |
1557                         SURVEY_INFO_TIME_BUSY;
1558        survey->noise = pchan_stats[idx].noise;
1559        survey->time = pchan_stats[idx].cca_scan_dur;
1560        survey->time_busy = pchan_stats[idx].cca_busy_dur;
1561
1562        return 0;
1563}
1564
1565/* Supported rates to be advertised to the cfg80211 */
1566static struct ieee80211_rate mwifiex_rates[] = {
1567        {.bitrate = 10, .hw_value = 2, },
1568        {.bitrate = 20, .hw_value = 4, },
1569        {.bitrate = 55, .hw_value = 11, },
1570        {.bitrate = 110, .hw_value = 22, },
1571        {.bitrate = 60, .hw_value = 12, },
1572        {.bitrate = 90, .hw_value = 18, },
1573        {.bitrate = 120, .hw_value = 24, },
1574        {.bitrate = 180, .hw_value = 36, },
1575        {.bitrate = 240, .hw_value = 48, },
1576        {.bitrate = 360, .hw_value = 72, },
1577        {.bitrate = 480, .hw_value = 96, },
1578        {.bitrate = 540, .hw_value = 108, },
1579};
1580
1581/* Channel definitions to be advertised to cfg80211 */
1582static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1583        {.center_freq = 2412, .hw_value = 1, },
1584        {.center_freq = 2417, .hw_value = 2, },
1585        {.center_freq = 2422, .hw_value = 3, },
1586        {.center_freq = 2427, .hw_value = 4, },
1587        {.center_freq = 2432, .hw_value = 5, },
1588        {.center_freq = 2437, .hw_value = 6, },
1589        {.center_freq = 2442, .hw_value = 7, },
1590        {.center_freq = 2447, .hw_value = 8, },
1591        {.center_freq = 2452, .hw_value = 9, },
1592        {.center_freq = 2457, .hw_value = 10, },
1593        {.center_freq = 2462, .hw_value = 11, },
1594        {.center_freq = 2467, .hw_value = 12, },
1595        {.center_freq = 2472, .hw_value = 13, },
1596        {.center_freq = 2484, .hw_value = 14, },
1597};
1598
1599static struct ieee80211_supported_band mwifiex_band_2ghz = {
1600        .channels = mwifiex_channels_2ghz,
1601        .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1602        .bitrates = mwifiex_rates,
1603        .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1604};
1605
1606static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1607        {.center_freq = 5040, .hw_value = 8, },
1608        {.center_freq = 5060, .hw_value = 12, },
1609        {.center_freq = 5080, .hw_value = 16, },
1610        {.center_freq = 5170, .hw_value = 34, },
1611        {.center_freq = 5190, .hw_value = 38, },
1612        {.center_freq = 5210, .hw_value = 42, },
1613        {.center_freq = 5230, .hw_value = 46, },
1614        {.center_freq = 5180, .hw_value = 36, },
1615        {.center_freq = 5200, .hw_value = 40, },
1616        {.center_freq = 5220, .hw_value = 44, },
1617        {.center_freq = 5240, .hw_value = 48, },
1618        {.center_freq = 5260, .hw_value = 52, },
1619        {.center_freq = 5280, .hw_value = 56, },
1620        {.center_freq = 5300, .hw_value = 60, },
1621        {.center_freq = 5320, .hw_value = 64, },
1622        {.center_freq = 5500, .hw_value = 100, },
1623        {.center_freq = 5520, .hw_value = 104, },
1624        {.center_freq = 5540, .hw_value = 108, },
1625        {.center_freq = 5560, .hw_value = 112, },
1626        {.center_freq = 5580, .hw_value = 116, },
1627        {.center_freq = 5600, .hw_value = 120, },
1628        {.center_freq = 5620, .hw_value = 124, },
1629        {.center_freq = 5640, .hw_value = 128, },
1630        {.center_freq = 5660, .hw_value = 132, },
1631        {.center_freq = 5680, .hw_value = 136, },
1632        {.center_freq = 5700, .hw_value = 140, },
1633        {.center_freq = 5745, .hw_value = 149, },
1634        {.center_freq = 5765, .hw_value = 153, },
1635        {.center_freq = 5785, .hw_value = 157, },
1636        {.center_freq = 5805, .hw_value = 161, },
1637        {.center_freq = 5825, .hw_value = 165, },
1638};
1639
1640static struct ieee80211_supported_band mwifiex_band_5ghz = {
1641        .channels = mwifiex_channels_5ghz,
1642        .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1643        .bitrates = mwifiex_rates + 4,
1644        .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1645};
1646
1647
1648/* Supported crypto cipher suits to be advertised to cfg80211 */
1649static const u32 mwifiex_cipher_suites[] = {
1650        WLAN_CIPHER_SUITE_WEP40,
1651        WLAN_CIPHER_SUITE_WEP104,
1652        WLAN_CIPHER_SUITE_TKIP,
1653        WLAN_CIPHER_SUITE_CCMP,
1654        WLAN_CIPHER_SUITE_SMS4,
1655        WLAN_CIPHER_SUITE_AES_CMAC,
1656};
1657
1658/* Supported mgmt frame types to be advertised to cfg80211 */
1659static const struct ieee80211_txrx_stypes
1660mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1661        [NL80211_IFTYPE_STATION] = {
1662                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1663                      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1664                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1665                      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1666        },
1667        [NL80211_IFTYPE_AP] = {
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_P2P_CLIENT] = {
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_GO] = {
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};
1686
1687/*
1688 * CFG802.11 operation handler for setting bit rates.
1689 *
1690 * Function configures data rates to firmware using bitrate mask
1691 * provided by cfg80211.
1692 */
1693static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1694                                struct net_device *dev,
1695                                const u8 *peer,
1696                                const struct cfg80211_bitrate_mask *mask)
1697{
1698        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1699        u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1700        enum nl80211_band band;
1701        struct mwifiex_adapter *adapter = priv->adapter;
1702
1703        if (!priv->media_connected) {
1704                mwifiex_dbg(adapter, ERROR,
1705                            "Can not set Tx data rate in disconnected state\n");
1706                return -EINVAL;
1707        }
1708
1709        band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1710
1711        memset(bitmap_rates, 0, sizeof(bitmap_rates));
1712
1713        /* Fill HR/DSSS rates. */
1714        if (band == NL80211_BAND_2GHZ)
1715                bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1716
1717        /* Fill OFDM rates */
1718        if (band == NL80211_BAND_2GHZ)
1719                bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1720        else
1721                bitmap_rates[1] = mask->control[band].legacy;
1722
1723        /* Fill HT MCS rates */
1724        bitmap_rates[2] = mask->control[band].ht_mcs[0];
1725        if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1726                bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1727
1728       /* Fill VHT MCS rates */
1729        if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1730                bitmap_rates[10] = mask->control[band].vht_mcs[0];
1731                if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1732                        bitmap_rates[11] = mask->control[band].vht_mcs[1];
1733        }
1734
1735        return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1736                                HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1737}
1738
1739/*
1740 * CFG802.11 operation handler for connection quality monitoring.
1741 *
1742 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1743 * events to FW.
1744 */
1745static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1746                                                struct net_device *dev,
1747                                                s32 rssi_thold, u32 rssi_hyst)
1748{
1749        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1750        struct mwifiex_ds_misc_subsc_evt subsc_evt;
1751
1752        priv->cqm_rssi_thold = rssi_thold;
1753        priv->cqm_rssi_hyst = rssi_hyst;
1754
1755        memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1756        subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1757
1758        /* Subscribe/unsubscribe low and high rssi events */
1759        if (rssi_thold && rssi_hyst) {
1760                subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1761                subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1762                subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1763                subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1764                subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1765                return mwifiex_send_cmd(priv,
1766                                        HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1767                                        0, 0, &subsc_evt, true);
1768        } else {
1769                subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1770                return mwifiex_send_cmd(priv,
1771                                        HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1772                                        0, 0, &subsc_evt, true);
1773        }
1774
1775        return 0;
1776}
1777
1778/* cfg80211 operation handler for change_beacon.
1779 * Function retrieves and sets modified management IEs to FW.
1780 */
1781static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1782                                          struct net_device *dev,
1783                                          struct cfg80211_beacon_data *data)
1784{
1785        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1786        struct mwifiex_adapter *adapter = priv->adapter;
1787
1788        mwifiex_cancel_scan(adapter);
1789
1790        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1791                mwifiex_dbg(priv->adapter, ERROR,
1792                            "%s: bss_type mismatched\n", __func__);
1793                return -EINVAL;
1794        }
1795
1796        if (!priv->bss_started) {
1797                mwifiex_dbg(priv->adapter, ERROR,
1798                            "%s: bss not started\n", __func__);
1799                return -EINVAL;
1800        }
1801
1802        if (mwifiex_set_mgmt_ies(priv, data)) {
1803                mwifiex_dbg(priv->adapter, ERROR,
1804                            "%s: setting mgmt ies failed\n", __func__);
1805                return -EFAULT;
1806        }
1807
1808        return 0;
1809}
1810
1811/* cfg80211 operation handler for del_station.
1812 * Function deauthenticates station which value is provided in mac parameter.
1813 * If mac is NULL/broadcast, all stations in associated station list are
1814 * deauthenticated. If bss is not started or there are no stations in
1815 * associated stations list, no action is taken.
1816 */
1817static int
1818mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1819                             struct station_del_parameters *params)
1820{
1821        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1822        struct mwifiex_sta_node *sta_node;
1823        u8 deauth_mac[ETH_ALEN];
1824
1825        if (!priv->bss_started && priv->wdev.cac_started) {
1826                mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1827                mwifiex_abort_cac(priv);
1828        }
1829
1830        if (list_empty(&priv->sta_list) || !priv->bss_started)
1831                return 0;
1832
1833        if (!params->mac || is_broadcast_ether_addr(params->mac))
1834                return 0;
1835
1836        mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1837                    __func__, params->mac);
1838
1839        eth_zero_addr(deauth_mac);
1840
1841        spin_lock_bh(&priv->sta_list_spinlock);
1842        sta_node = mwifiex_get_sta_entry(priv, params->mac);
1843        if (sta_node)
1844                ether_addr_copy(deauth_mac, params->mac);
1845        spin_unlock_bh(&priv->sta_list_spinlock);
1846
1847        if (is_valid_ether_addr(deauth_mac)) {
1848                if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1849                                     HostCmd_ACT_GEN_SET, 0,
1850                                     deauth_mac, true))
1851                        return -1;
1852        }
1853
1854        return 0;
1855}
1856
1857static int
1858mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1859{
1860        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1861        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1862                                                        MWIFIEX_BSS_ROLE_ANY);
1863        struct mwifiex_ds_ant_cfg ant_cfg;
1864
1865        if (!tx_ant || !rx_ant)
1866                return -EOPNOTSUPP;
1867
1868        if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1869                /* Not a MIMO chip. User should provide specific antenna number
1870                 * for Tx/Rx path or enable all antennas for diversity
1871                 */
1872                if (tx_ant != rx_ant)
1873                        return -EOPNOTSUPP;
1874
1875                if ((tx_ant & (tx_ant - 1)) &&
1876                    (tx_ant != BIT(adapter->number_of_antenna) - 1))
1877                        return -EOPNOTSUPP;
1878
1879                if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1880                    (priv->adapter->number_of_antenna > 1)) {
1881                        tx_ant = RF_ANTENNA_AUTO;
1882                        rx_ant = RF_ANTENNA_AUTO;
1883                }
1884        } else {
1885                struct ieee80211_sta_ht_cap *ht_info;
1886                int rx_mcs_supp;
1887                enum nl80211_band band;
1888
1889                if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1890                        adapter->user_dev_mcs_support = HT_STREAM_1X1;
1891                        if (adapter->is_hw_11ac_capable)
1892                                adapter->usr_dot_11ac_mcs_support =
1893                                                MWIFIEX_11AC_MCS_MAP_1X1;
1894                } else {
1895                        adapter->user_dev_mcs_support = HT_STREAM_2X2;
1896                        if (adapter->is_hw_11ac_capable)
1897                                adapter->usr_dot_11ac_mcs_support =
1898                                                MWIFIEX_11AC_MCS_MAP_2X2;
1899                }
1900
1901                for (band = 0; band < NUM_NL80211_BANDS; band++) {
1902                        if (!adapter->wiphy->bands[band])
1903                                continue;
1904
1905                        ht_info = &adapter->wiphy->bands[band]->ht_cap;
1906                        rx_mcs_supp =
1907                                GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1908                        memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1909                        memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1910                }
1911        }
1912
1913        ant_cfg.tx_ant = tx_ant;
1914        ant_cfg.rx_ant = rx_ant;
1915
1916        return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1917                                HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1918}
1919
1920static int
1921mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1922{
1923        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1924        struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1925                                                        MWIFIEX_BSS_ROLE_ANY);
1926        mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1927                         HostCmd_ACT_GEN_GET, 0, NULL, true);
1928
1929        *tx_ant = priv->tx_ant;
1930        *rx_ant = priv->rx_ant;
1931
1932        return 0;
1933}
1934
1935/* cfg80211 operation handler for stop ap.
1936 * Function stops BSS running at uAP interface.
1937 */
1938static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1939{
1940        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1941
1942        mwifiex_abort_cac(priv);
1943
1944        if (mwifiex_del_mgmt_ies(priv))
1945                mwifiex_dbg(priv->adapter, ERROR,
1946                            "Failed to delete mgmt IEs!\n");
1947
1948        priv->ap_11n_enabled = 0;
1949        memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1950
1951        if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1952                             HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1953                mwifiex_dbg(priv->adapter, ERROR,
1954                            "Failed to stop the BSS\n");
1955                return -1;
1956        }
1957
1958        if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1959                             HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1960                mwifiex_dbg(priv->adapter, ERROR,
1961                            "Failed to reset BSS\n");
1962                return -1;
1963        }
1964
1965        if (netif_carrier_ok(priv->netdev))
1966                netif_carrier_off(priv->netdev);
1967        mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1968
1969        return 0;
1970}
1971
1972/* cfg80211 operation handler for start_ap.
1973 * Function sets beacon period, DTIM period, SSID and security into
1974 * AP config structure.
1975 * AP is configured with these settings and BSS is started.
1976 */
1977static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1978                                     struct net_device *dev,
1979                                     struct cfg80211_ap_settings *params)
1980{
1981        struct mwifiex_uap_bss_param *bss_cfg;
1982        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1983
1984        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1985                return -1;
1986
1987        bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1988        if (!bss_cfg)
1989                return -ENOMEM;
1990
1991        mwifiex_set_sys_config_invalid_data(bss_cfg);
1992
1993        if (params->beacon_interval)
1994                bss_cfg->beacon_period = params->beacon_interval;
1995        if (params->dtim_period)
1996                bss_cfg->dtim_period = params->dtim_period;
1997
1998        if (params->ssid && params->ssid_len) {
1999                memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2000                bss_cfg->ssid.ssid_len = params->ssid_len;
2001        }
2002        if (params->inactivity_timeout > 0) {
2003                /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2004                bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2005                bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2006        }
2007
2008        switch (params->hidden_ssid) {
2009        case NL80211_HIDDEN_SSID_NOT_IN_USE:
2010                bss_cfg->bcast_ssid_ctl = 1;
2011                break;
2012        case NL80211_HIDDEN_SSID_ZERO_LEN:
2013                bss_cfg->bcast_ssid_ctl = 0;
2014                break;
2015        case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2016                bss_cfg->bcast_ssid_ctl = 2;
2017                break;
2018        default:
2019                kfree(bss_cfg);
2020                return -EINVAL;
2021        }
2022
2023        mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2024        mwifiex_set_uap_rates(bss_cfg, params);
2025
2026        if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2027                mwifiex_dbg(priv->adapter, ERROR,
2028                            "Failed to parse security parameters!\n");
2029                goto out;
2030        }
2031
2032        mwifiex_set_ht_params(priv, bss_cfg, params);
2033
2034        if (priv->adapter->is_hw_11ac_capable) {
2035                mwifiex_set_vht_params(priv, bss_cfg, params);
2036                mwifiex_set_vht_width(priv, params->chandef.width,
2037                                      priv->ap_11ac_enabled);
2038        }
2039
2040        if (priv->ap_11ac_enabled)
2041                mwifiex_set_11ac_ba_params(priv);
2042        else
2043                mwifiex_set_ba_params(priv);
2044
2045        mwifiex_set_wmm_params(priv, bss_cfg, params);
2046
2047        if (mwifiex_is_11h_active(priv))
2048                mwifiex_set_tpc_params(priv, bss_cfg, params);
2049
2050        if (mwifiex_is_11h_active(priv) &&
2051            !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2052                                           priv->bss_mode)) {
2053                mwifiex_dbg(priv->adapter, INFO,
2054                            "Disable 11h extensions in FW\n");
2055                if (mwifiex_11h_activate(priv, false)) {
2056                        mwifiex_dbg(priv->adapter, ERROR,
2057                                    "Failed to disable 11h extensions!!");
2058                        goto out;
2059                }
2060                priv->state_11h.is_11h_active = false;
2061        }
2062
2063        mwifiex_config_uap_11d(priv, &params->beacon);
2064
2065        if (mwifiex_config_start_uap(priv, bss_cfg)) {
2066                mwifiex_dbg(priv->adapter, ERROR,
2067                            "Failed to start AP\n");
2068                goto out;
2069        }
2070
2071        if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2072                goto out;
2073
2074        if (!netif_carrier_ok(priv->netdev))
2075                netif_carrier_on(priv->netdev);
2076        mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2077
2078        memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2079        kfree(bss_cfg);
2080        return 0;
2081
2082out:
2083        kfree(bss_cfg);
2084        return -1;
2085}
2086
2087/*
2088 * CFG802.11 operation handler for disconnection request.
2089 *
2090 * This function does not work when there is already a disconnection
2091 * procedure going on.
2092 */
2093static int
2094mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2095                            u16 reason_code)
2096{
2097        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2098
2099        if (!mwifiex_stop_bg_scan(priv))
2100                cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2101
2102        if (mwifiex_deauthenticate(priv, NULL))
2103                return -EFAULT;
2104
2105        eth_zero_addr(priv->cfg_bssid);
2106        priv->hs2_enabled = false;
2107
2108        return 0;
2109}
2110
2111/*
2112 * This function informs the CFG802.11 subsystem of a new IBSS.
2113 *
2114 * The following information are sent to the CFG802.11 subsystem
2115 * to register the new IBSS. If we do not register the new IBSS,
2116 * a kernel panic will result.
2117 *      - SSID
2118 *      - SSID length
2119 *      - BSSID
2120 *      - Channel
2121 */
2122static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2123{
2124        struct ieee80211_channel *chan;
2125        struct mwifiex_bss_info bss_info;
2126        struct cfg80211_bss *bss;
2127        int ie_len;
2128        u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2129        enum nl80211_band band;
2130
2131        if (mwifiex_get_bss_info(priv, &bss_info))
2132                return -1;
2133
2134        ie_buf[0] = WLAN_EID_SSID;
2135        ie_buf[1] = bss_info.ssid.ssid_len;
2136
2137        memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2138               &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2139        ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2140
2141        band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2142        chan = ieee80211_get_channel(priv->wdev.wiphy,
2143                        ieee80211_channel_to_frequency(bss_info.bss_chan,
2144                                                       band));
2145
2146        bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2147                                  CFG80211_BSS_FTYPE_UNKNOWN,
2148                                  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2149                                  0, ie_buf, ie_len, 0, GFP_KERNEL);
2150        if (bss) {
2151                cfg80211_put_bss(priv->wdev.wiphy, bss);
2152                ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2153        }
2154
2155        return 0;
2156}
2157
2158/*
2159 * This function connects with a BSS.
2160 *
2161 * This function handles both Infra and Ad-Hoc modes. It also performs
2162 * validity checking on the provided parameters, disconnects from the
2163 * current BSS (if any), sets up the association/scan parameters,
2164 * including security settings, and performs specific SSID scan before
2165 * trying to connect.
2166 *
2167 * For Infra mode, the function returns failure if the specified SSID
2168 * is not found in scan table. However, for Ad-Hoc mode, it can create
2169 * the IBSS if it does not exist. On successful completion in either case,
2170 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2171 */
2172static int
2173mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2174                       const u8 *ssid, const u8 *bssid, int mode,
2175                       struct ieee80211_channel *channel,
2176                       struct cfg80211_connect_params *sme, bool privacy,
2177                       struct cfg80211_bss **sel_bss)
2178{
2179        struct cfg80211_ssid req_ssid;
2180        int ret, auth_type = 0;
2181        struct cfg80211_bss *bss = NULL;
2182        u8 is_scanning_required = 0;
2183
2184        memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2185
2186        req_ssid.ssid_len = ssid_len;
2187        if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2188                mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2189                return -EINVAL;
2190        }
2191
2192        memcpy(req_ssid.ssid, ssid, ssid_len);
2193        if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2194                mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2195                return -EINVAL;
2196        }
2197
2198        /* As this is new association, clear locally stored
2199         * keys and security related flags */
2200        priv->sec_info.wpa_enabled = false;
2201        priv->sec_info.wpa2_enabled = false;
2202        priv->wep_key_curr_index = 0;
2203        priv->sec_info.encryption_mode = 0;
2204        priv->sec_info.is_authtype_auto = 0;
2205        ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2206
2207        if (mode == NL80211_IFTYPE_ADHOC) {
2208                u16 enable = true;
2209
2210                /* set ibss coalescing_status */
2211                ret = mwifiex_send_cmd(
2212                                priv,
2213                                HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2214                                HostCmd_ACT_GEN_SET, 0, &enable, true);
2215                if (ret)
2216                        return ret;
2217
2218                /* "privacy" is set only for ad-hoc mode */
2219                if (privacy) {
2220                        /*
2221                         * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2222                         * the firmware can find a matching network from the
2223                         * scan. The cfg80211 does not give us the encryption
2224                         * mode at this stage so just setting it to WEP here.
2225                         */
2226                        priv->sec_info.encryption_mode =
2227                                        WLAN_CIPHER_SUITE_WEP104;
2228                        priv->sec_info.authentication_mode =
2229                                        NL80211_AUTHTYPE_OPEN_SYSTEM;
2230                }
2231
2232                goto done;
2233        }
2234
2235        /* Now handle infra mode. "sme" is valid for infra mode only */
2236        if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2237                auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2238                priv->sec_info.is_authtype_auto = 1;
2239        } else {
2240                auth_type = sme->auth_type;
2241        }
2242
2243        if (sme->crypto.n_ciphers_pairwise) {
2244                priv->sec_info.encryption_mode =
2245                                                sme->crypto.ciphers_pairwise[0];
2246                priv->sec_info.authentication_mode = auth_type;
2247        }
2248
2249        if (sme->crypto.cipher_group) {
2250                priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2251                priv->sec_info.authentication_mode = auth_type;
2252        }
2253        if (sme->ie)
2254                ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2255
2256        if (sme->key) {
2257                if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2258                        mwifiex_dbg(priv->adapter, INFO,
2259                                    "info: setting wep encryption\t"
2260                                    "with key len %d\n", sme->key_len);
2261                        priv->wep_key_curr_index = sme->key_idx;
2262                        ret = mwifiex_set_encode(priv, NULL, sme->key,
2263                                                 sme->key_len, sme->key_idx,
2264                                                 NULL, 0);
2265                }
2266        }
2267done:
2268        /*
2269         * Scan entries are valid for some time (15 sec). So we can save one
2270         * active scan time if we just try cfg80211_get_bss first. If it fails
2271         * then request scan and cfg80211_get_bss() again for final output.
2272         */
2273        while (1) {
2274                if (is_scanning_required) {
2275                        /* Do specific SSID scanning */
2276                        if (mwifiex_request_scan(priv, &req_ssid)) {
2277                                mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2278                                return -EFAULT;
2279                        }
2280                }
2281
2282                /* Find the BSS we want using available scan results */
2283                if (mode == NL80211_IFTYPE_ADHOC)
2284                        bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2285                                               bssid, ssid, ssid_len,
2286                                               IEEE80211_BSS_TYPE_IBSS,
2287                                               IEEE80211_PRIVACY_ANY);
2288                else
2289                        bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2290                                               bssid, ssid, ssid_len,
2291                                               IEEE80211_BSS_TYPE_ESS,
2292                                               IEEE80211_PRIVACY_ANY);
2293
2294                if (!bss) {
2295                        if (is_scanning_required) {
2296                                mwifiex_dbg(priv->adapter, MSG,
2297                                            "assoc: requested bss not found in scan results\n");
2298                                break;
2299                        }
2300                        is_scanning_required = 1;
2301                } else {
2302                        mwifiex_dbg(priv->adapter, MSG,
2303                                    "info: trying to associate to bssid %pM\n",
2304                                    bss->bssid);
2305                        memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2306                        break;
2307                }
2308        }
2309
2310        if (bss)
2311                cfg80211_ref_bss(priv->adapter->wiphy, bss);
2312
2313        ret = mwifiex_bss_start(priv, bss, &req_ssid);
2314        if (ret)
2315                goto cleanup;
2316
2317        if (mode == NL80211_IFTYPE_ADHOC) {
2318                /* Inform the BSS information to kernel, otherwise
2319                 * kernel will give a panic after successful assoc */
2320                if (mwifiex_cfg80211_inform_ibss_bss(priv)) {
2321                        ret = -EFAULT;
2322                        goto cleanup;
2323                }
2324        }
2325
2326        /* Pass the selected BSS entry to caller. */
2327        if (sel_bss) {
2328                *sel_bss = bss;
2329                bss = NULL;
2330        }
2331
2332cleanup:
2333        if (bss)
2334                cfg80211_put_bss(priv->adapter->wiphy, bss);
2335        return ret;
2336}
2337
2338/*
2339 * CFG802.11 operation handler for association request.
2340 *
2341 * This function does not work when the current mode is set to Ad-Hoc, or
2342 * when there is already an association procedure going on. The given BSS
2343 * information is used to associate.
2344 */
2345static int
2346mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2347                         struct cfg80211_connect_params *sme)
2348{
2349        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2350        struct mwifiex_adapter *adapter = priv->adapter;
2351        struct cfg80211_bss *bss = NULL;
2352        int ret;
2353
2354        if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2355                mwifiex_dbg(adapter, ERROR,
2356                            "%s: reject infra assoc request in non-STA role\n",
2357                            dev->name);
2358                return -EINVAL;
2359        }
2360
2361        if (priv->wdev.current_bss) {
2362                mwifiex_dbg(adapter, ERROR,
2363                            "%s: already connected\n", dev->name);
2364                return -EALREADY;
2365        }
2366
2367        if (priv->scan_block)
2368                priv->scan_block = false;
2369
2370        if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2371            test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2372                mwifiex_dbg(adapter, ERROR,
2373                            "%s: Ignore connection.\t"
2374                            "Card removed or FW in bad state\n",
2375                            dev->name);
2376                return -EFAULT;
2377        }
2378
2379        mwifiex_dbg(adapter, INFO,
2380                    "info: Trying to associate to bssid %pM\n", sme->bssid);
2381
2382        if (!mwifiex_stop_bg_scan(priv))
2383                cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2384
2385        ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2386                                     priv->bss_mode, sme->channel, sme, 0,
2387                                     &bss);
2388        if (!ret) {
2389                cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL,
2390                                     0, NULL, 0, WLAN_STATUS_SUCCESS,
2391                                     GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED);
2392                mwifiex_dbg(priv->adapter, MSG,
2393                            "info: associated to bssid %pM successfully\n",
2394                            priv->cfg_bssid);
2395                if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2396                    priv->adapter->auto_tdls &&
2397                    priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2398                        mwifiex_setup_auto_tdls_timer(priv);
2399        } else {
2400                mwifiex_dbg(priv->adapter, ERROR,
2401                            "info: association to bssid %pM failed\n",
2402                            priv->cfg_bssid);
2403                eth_zero_addr(priv->cfg_bssid);
2404
2405                if (ret > 0)
2406                        cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2407                                                NULL, 0, NULL, 0, ret,
2408                                                GFP_KERNEL);
2409                else
2410                        cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2411                                                NULL, 0, NULL, 0,
2412                                                WLAN_STATUS_UNSPECIFIED_FAILURE,
2413                                                GFP_KERNEL);
2414        }
2415
2416        return 0;
2417}
2418
2419/*
2420 * This function sets following parameters for ibss network.
2421 *  -  channel
2422 *  -  start band
2423 *  -  11n flag
2424 *  -  secondary channel offset
2425 */
2426static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2427                                   struct cfg80211_ibss_params *params)
2428{
2429        struct mwifiex_adapter *adapter = priv->adapter;
2430        int index = 0, i;
2431        u8 config_bands = 0;
2432
2433        if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2434                if (!params->basic_rates) {
2435                        config_bands = BAND_B | BAND_G;
2436                } else {
2437                        for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2438                                /*
2439                                 * Rates below 6 Mbps in the table are CCK
2440                                 * rates; 802.11b and from 6 they are OFDM;
2441                                 * 802.11G
2442                                 */
2443                                if (mwifiex_rates[i].bitrate == 60) {
2444                                        index = 1 << i;
2445                                        break;
2446                                }
2447                        }
2448
2449                        if (params->basic_rates < index) {
2450                                config_bands = BAND_B;
2451                        } else {
2452                                config_bands = BAND_G;
2453                                if (params->basic_rates % index)
2454                                        config_bands |= BAND_B;
2455                        }
2456                }
2457
2458                if (cfg80211_get_chandef_type(&params->chandef) !=
2459                                                NL80211_CHAN_NO_HT)
2460                        config_bands |= BAND_G | BAND_GN;
2461        } else {
2462                if (cfg80211_get_chandef_type(&params->chandef) ==
2463                                                NL80211_CHAN_NO_HT)
2464                        config_bands = BAND_A;
2465                else
2466                        config_bands = BAND_AN | BAND_A;
2467        }
2468
2469        if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2470                adapter->config_bands = config_bands;
2471                adapter->adhoc_start_band = config_bands;
2472
2473                if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2474                        adapter->adhoc_11n_enabled = true;
2475                else
2476                        adapter->adhoc_11n_enabled = false;
2477        }
2478
2479        adapter->sec_chan_offset =
2480                mwifiex_chan_type_to_sec_chan_offset(
2481                        cfg80211_get_chandef_type(&params->chandef));
2482        priv->adhoc_channel = ieee80211_frequency_to_channel(
2483                                params->chandef.chan->center_freq);
2484
2485        mwifiex_dbg(adapter, INFO,
2486                    "info: set ibss band %d, chan %d, chan offset %d\n",
2487                    config_bands, priv->adhoc_channel,
2488                    adapter->sec_chan_offset);
2489
2490        return 0;
2491}
2492
2493/*
2494 * CFG802.11 operation handler to join an IBSS.
2495 *
2496 * This function does not work in any mode other than Ad-Hoc, or if
2497 * a join operation is already in progress.
2498 */
2499static int
2500mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2501                           struct cfg80211_ibss_params *params)
2502{
2503        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2504        int ret = 0;
2505
2506        if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2507                mwifiex_dbg(priv->adapter, ERROR,
2508                            "request to join ibss received\t"
2509                            "when station is not in ibss mode\n");
2510                goto done;
2511        }
2512
2513        mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n",
2514                    params->bssid);
2515
2516        mwifiex_set_ibss_params(priv, params);
2517
2518        ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2519                                     params->bssid, priv->bss_mode,
2520                                     params->chandef.chan, NULL,
2521                                     params->privacy, NULL);
2522done:
2523        if (!ret) {
2524                cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2525                                     params->chandef.chan, GFP_KERNEL);
2526                mwifiex_dbg(priv->adapter, MSG,
2527                            "info: joined/created adhoc network with bssid\t"
2528                            "%pM successfully\n", priv->cfg_bssid);
2529        } else {
2530                mwifiex_dbg(priv->adapter, ERROR,
2531                            "info: failed creating/joining adhoc network\n");
2532        }
2533
2534        return ret;
2535}
2536
2537/*
2538 * CFG802.11 operation handler to leave an IBSS.
2539 *
2540 * This function does not work if a leave operation is
2541 * already in progress.
2542 */
2543static int
2544mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2545{
2546        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2547
2548        mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2549                    priv->cfg_bssid);
2550        if (mwifiex_deauthenticate(priv, NULL))
2551                return -EFAULT;
2552
2553        eth_zero_addr(priv->cfg_bssid);
2554
2555        return 0;
2556}
2557
2558/*
2559 * CFG802.11 operation handler for scan request.
2560 *
2561 * This function issues a scan request to the firmware based upon
2562 * the user specified scan configuration. On successful completion,
2563 * it also informs the results.
2564 */
2565static int
2566mwifiex_cfg80211_scan(struct wiphy *wiphy,
2567                      struct cfg80211_scan_request *request)
2568{
2569        struct net_device *dev = request->wdev->netdev;
2570        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2571        int i, offset, ret;
2572        struct ieee80211_channel *chan;
2573        struct ieee_types_header *ie;
2574        struct mwifiex_user_scan_cfg *user_scan_cfg;
2575        u8 mac_addr[ETH_ALEN];
2576
2577        mwifiex_dbg(priv->adapter, CMD,
2578                    "info: received scan request on %s\n", dev->name);
2579
2580        /* Block scan request if scan operation or scan cleanup when interface
2581         * is disabled is in process
2582         */
2583        if (priv->scan_request || priv->scan_aborting) {
2584                mwifiex_dbg(priv->adapter, WARN,
2585                            "cmd: Scan already in process..\n");
2586                return -EBUSY;
2587        }
2588
2589        if (!priv->wdev.current_bss && priv->scan_block)
2590                priv->scan_block = false;
2591
2592        if (!mwifiex_stop_bg_scan(priv))
2593                cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2594
2595        user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2596        if (!user_scan_cfg)
2597                return -ENOMEM;
2598
2599        priv->scan_request = request;
2600
2601        if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2602                get_random_mask_addr(mac_addr, request->mac_addr,
2603                                     request->mac_addr_mask);
2604                ether_addr_copy(request->mac_addr, mac_addr);
2605                ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2606        }
2607
2608        user_scan_cfg->num_ssids = request->n_ssids;
2609        user_scan_cfg->ssid_list = request->ssids;
2610
2611        if (request->ie && request->ie_len) {
2612                offset = 0;
2613                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2614                        if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2615                                continue;
2616                        priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2617                        ie = (struct ieee_types_header *)(request->ie + offset);
2618                        memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2619                        offset += sizeof(*ie) + ie->len;
2620
2621                        if (offset >= request->ie_len)
2622                                break;
2623                }
2624        }
2625
2626        for (i = 0; i < min_t(u32, request->n_channels,
2627                              MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2628                chan = request->channels[i];
2629                user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2630                user_scan_cfg->chan_list[i].radio_type = chan->band;
2631
2632                if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2633                        user_scan_cfg->chan_list[i].scan_type =
2634                                                MWIFIEX_SCAN_TYPE_PASSIVE;
2635                else
2636                        user_scan_cfg->chan_list[i].scan_type =
2637                                                MWIFIEX_SCAN_TYPE_ACTIVE;
2638
2639                user_scan_cfg->chan_list[i].scan_time = 0;
2640        }
2641
2642        if (priv->adapter->scan_chan_gap_enabled &&
2643            mwifiex_is_any_intf_active(priv))
2644                user_scan_cfg->scan_chan_gap =
2645                                              priv->adapter->scan_chan_gap_time;
2646
2647        ret = mwifiex_scan_networks(priv, user_scan_cfg);
2648        kfree(user_scan_cfg);
2649        if (ret) {
2650                mwifiex_dbg(priv->adapter, ERROR,
2651                            "scan failed: %d\n", ret);
2652                priv->scan_aborting = false;
2653                priv->scan_request = NULL;
2654                return ret;
2655        }
2656
2657        if (request->ie && request->ie_len) {
2658                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2659                        if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2660                                priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2661                                memset(&priv->vs_ie[i].ie, 0,
2662                                       MWIFIEX_MAX_VSIE_LEN);
2663                        }
2664                }
2665        }
2666        return 0;
2667}
2668
2669/* CFG802.11 operation handler for sched_scan_start.
2670 *
2671 * This function issues a bgscan config request to the firmware based upon
2672 * the user specified sched_scan configuration. On successful completion,
2673 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2674 * query command to get sched_scan results from firmware.
2675 */
2676static int
2677mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2678                                  struct net_device *dev,
2679                                  struct cfg80211_sched_scan_request *request)
2680{
2681        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2682        int i, offset;
2683        struct ieee80211_channel *chan;
2684        struct mwifiex_bg_scan_cfg *bgscan_cfg;
2685        struct ieee_types_header *ie;
2686
2687        if (!request || (!request->n_ssids && !request->n_match_sets)) {
2688                wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2689                          __func__);
2690                return -EINVAL;
2691        }
2692
2693        wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2694                   request->n_ssids, request->n_match_sets);
2695        wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2696                   request->n_channels, request->scan_plans->interval,
2697                   (int)request->ie_len);
2698
2699        bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2700        if (!bgscan_cfg)
2701                return -ENOMEM;
2702
2703        if (priv->scan_request || priv->scan_aborting)
2704                bgscan_cfg->start_later = true;
2705
2706        bgscan_cfg->num_ssids = request->n_match_sets;
2707        bgscan_cfg->ssid_list = request->match_sets;
2708
2709        if (request->ie && request->ie_len) {
2710                offset = 0;
2711                for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2712                        if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2713                                continue;
2714                        priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2715                        ie = (struct ieee_types_header *)(request->ie + offset);
2716                        memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2717                        offset += sizeof(*ie) + ie->len;
2718
2719                        if (offset >= request->ie_len)
2720                                break;
2721                }
2722        }
2723
2724        for (i = 0; i < min_t(u32, request->n_channels,
2725                              MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2726                chan = request->channels[i];
2727                bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2728                bgscan_cfg->chan_list[i].radio_type = chan->band;
2729
2730                if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2731                        bgscan_cfg->chan_list[i].scan_type =
2732                                                MWIFIEX_SCAN_TYPE_PASSIVE;
2733                else
2734                        bgscan_cfg->chan_list[i].scan_type =
2735                                                MWIFIEX_SCAN_TYPE_ACTIVE;
2736
2737                bgscan_cfg->chan_list[i].scan_time = 0;
2738        }
2739
2740        bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2741                                          MWIFIEX_BG_SCAN_CHAN_MAX);
2742
2743        /* Use at least 15 second for per scan cycle */
2744        bgscan_cfg->scan_interval = (request->scan_plans->interval >
2745                                     MWIFIEX_BGSCAN_INTERVAL) ?
2746                                request->scan_plans->interval :
2747                                MWIFIEX_BGSCAN_INTERVAL;
2748
2749        bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2750        bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2751                                MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2752        bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2753        bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2754        bgscan_cfg->enable = true;
2755        if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2756                bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2757                bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2758        }
2759
2760        if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2761                             HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2762                kfree(bgscan_cfg);
2763                return -EFAULT;
2764        }
2765
2766        priv->sched_scanning = true;
2767
2768        kfree(bgscan_cfg);
2769        return 0;
2770}
2771
2772/* CFG802.11 operation handler for sched_scan_stop.
2773 *
2774 * This function issues a bgscan config command to disable
2775 * previous bgscan configuration in the firmware
2776 */
2777static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2778                                            struct net_device *dev, u64 reqid)
2779{
2780        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2781
2782        wiphy_info(wiphy, "sched scan stop!");
2783        mwifiex_stop_bg_scan(priv);
2784
2785        return 0;
2786}
2787
2788static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2789                                   struct mwifiex_private *priv)
2790{
2791        struct mwifiex_adapter *adapter = priv->adapter;
2792
2793        vht_info->vht_supported = true;
2794
2795        vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2796        /* Update MCS support for VHT */
2797        vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2798                                adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2799        vht_info->vht_mcs.rx_highest = 0;
2800        vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2801                                adapter->hw_dot_11ac_mcs_support >> 16);
2802        vht_info->vht_mcs.tx_highest = 0;
2803}
2804
2805/*
2806 * This function sets up the CFG802.11 specific HT capability fields
2807 * with default values.
2808 *
2809 * The following default values are set -
2810 *      - HT Supported = True
2811 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2812 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2813 *      - HT Capabilities supported by firmware
2814 *      - MCS information, Rx mask = 0xff
2815 *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2816 */
2817static void
2818mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2819                      struct mwifiex_private *priv)
2820{
2821        int rx_mcs_supp;
2822        struct ieee80211_mcs_info mcs_set;
2823        u8 *mcs = (u8 *)&mcs_set;
2824        struct mwifiex_adapter *adapter = priv->adapter;
2825
2826        ht_info->ht_supported = true;
2827        ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2828        ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2829
2830        memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2831
2832        /* Fill HT capability information */
2833        if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2834                ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2835        else
2836                ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2837
2838        if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2839                ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2840        else
2841                ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2842
2843        if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2844                ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2845        else
2846                ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2847
2848        if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2849                ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2850        else
2851                ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2852
2853        if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2854                ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2855        else
2856                ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2857
2858        if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2859                ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2860        else
2861                ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2862
2863        if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2864                ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2865        else
2866                ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2867
2868        if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2869                ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2870        else
2871                ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2872
2873        ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2874        ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2875
2876        rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2877        /* Set MCS for 1x1/2x2 */
2878        memset(mcs, 0xff, rx_mcs_supp);
2879        /* Clear all the other values */
2880        memset(&mcs[rx_mcs_supp], 0,
2881               sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2882        if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2883            ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2884                /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2885                SETHT_MCS32(mcs_set.rx_mask);
2886
2887        memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2888
2889        ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2890}
2891
2892/*
2893 *  create a new virtual interface with the given name and name assign type
2894 */
2895struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2896                                              const char *name,
2897                                              unsigned char name_assign_type,
2898                                              enum nl80211_iftype type,
2899                                              struct vif_params *params)
2900{
2901        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2902        struct mwifiex_private *priv;
2903        struct net_device *dev;
2904        void *mdev_priv;
2905        int ret;
2906
2907        if (!adapter)
2908                return ERR_PTR(-EFAULT);
2909
2910        switch (type) {
2911        case NL80211_IFTYPE_UNSPECIFIED:
2912        case NL80211_IFTYPE_STATION:
2913        case NL80211_IFTYPE_ADHOC:
2914                if (adapter->curr_iface_comb.sta_intf ==
2915                    adapter->iface_limit.sta_intf) {
2916                        mwifiex_dbg(adapter, ERROR,
2917                                    "cannot create multiple sta/adhoc ifaces\n");
2918                        return ERR_PTR(-EINVAL);
2919                }
2920
2921                priv = mwifiex_get_unused_priv_by_bss_type(
2922                                                adapter, MWIFIEX_BSS_TYPE_STA);
2923                if (!priv) {
2924                        mwifiex_dbg(adapter, ERROR,
2925                                    "could not get free private struct\n");
2926                        return ERR_PTR(-EFAULT);
2927                }
2928
2929                priv->wdev.wiphy = wiphy;
2930                priv->wdev.iftype = NL80211_IFTYPE_STATION;
2931
2932                if (type == NL80211_IFTYPE_UNSPECIFIED)
2933                        priv->bss_mode = NL80211_IFTYPE_STATION;
2934                else
2935                        priv->bss_mode = type;
2936
2937                priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2938                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2939                priv->bss_priority = 0;
2940                priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2941
2942                break;
2943        case NL80211_IFTYPE_AP:
2944                if (adapter->curr_iface_comb.uap_intf ==
2945                    adapter->iface_limit.uap_intf) {
2946                        mwifiex_dbg(adapter, ERROR,
2947                                    "cannot create multiple AP ifaces\n");
2948                        return ERR_PTR(-EINVAL);
2949                }
2950
2951                priv = mwifiex_get_unused_priv_by_bss_type(
2952                                                adapter, MWIFIEX_BSS_TYPE_UAP);
2953                if (!priv) {
2954                        mwifiex_dbg(adapter, ERROR,
2955                                    "could not get free private struct\n");
2956                        return ERR_PTR(-EFAULT);
2957                }
2958
2959                priv->wdev.wiphy = wiphy;
2960                priv->wdev.iftype = NL80211_IFTYPE_AP;
2961
2962                priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2963                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2964                priv->bss_priority = 0;
2965                priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2966                priv->bss_started = 0;
2967                priv->bss_mode = type;
2968
2969                break;
2970        case NL80211_IFTYPE_P2P_CLIENT:
2971                if (adapter->curr_iface_comb.p2p_intf ==
2972                    adapter->iface_limit.p2p_intf) {
2973                        mwifiex_dbg(adapter, ERROR,
2974                                    "cannot create multiple P2P ifaces\n");
2975                        return ERR_PTR(-EINVAL);
2976                }
2977
2978                priv = mwifiex_get_unused_priv_by_bss_type(
2979                                                adapter, MWIFIEX_BSS_TYPE_P2P);
2980                if (!priv) {
2981                        mwifiex_dbg(adapter, ERROR,
2982                                    "could not get free private struct\n");
2983                        return ERR_PTR(-EFAULT);
2984                }
2985
2986                priv->wdev.wiphy = wiphy;
2987                /* At start-up, wpa_supplicant tries to change the interface
2988                 * to NL80211_IFTYPE_STATION if it is not managed mode.
2989                 */
2990                priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2991                priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2992
2993                /* Setting bss_type to P2P tells firmware that this interface
2994                 * is receiving P2P peers found during find phase and doing
2995                 * action frame handshake.
2996                 */
2997                priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2998
2999                priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3000                priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
3001                priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3002                priv->bss_started = 0;
3003
3004                if (mwifiex_cfg80211_init_p2p_client(priv)) {
3005                        memset(&priv->wdev, 0, sizeof(priv->wdev));
3006                        priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3007                        return ERR_PTR(-EFAULT);
3008                }
3009
3010                break;
3011        default:
3012                mwifiex_dbg(adapter, ERROR, "type not supported\n");
3013                return ERR_PTR(-EINVAL);
3014        }
3015
3016        dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3017                               name_assign_type, ether_setup,
3018                               IEEE80211_NUM_ACS, 1);
3019        if (!dev) {
3020                mwifiex_dbg(adapter, ERROR,
3021                            "no memory available for netdevice\n");
3022                ret = -ENOMEM;
3023                goto err_alloc_netdev;
3024        }
3025
3026        mwifiex_init_priv_params(priv, dev);
3027
3028        priv->netdev = dev;
3029
3030        if (!adapter->mfg_mode) {
3031                mwifiex_set_mac_address(priv, dev, false, NULL);
3032
3033                ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3034                                       HostCmd_ACT_GEN_SET, 0, NULL, true);
3035                if (ret)
3036                        goto err_set_bss_mode;
3037
3038                ret = mwifiex_sta_init_cmd(priv, false, false);
3039                if (ret)
3040                        goto err_sta_init;
3041        }
3042
3043        mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3044        if (adapter->is_hw_11ac_capable)
3045                mwifiex_setup_vht_caps(
3046                        &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3047
3048        if (adapter->config_bands & BAND_A)
3049                mwifiex_setup_ht_caps(
3050                        &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3051
3052        if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3053                mwifiex_setup_vht_caps(
3054                        &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3055
3056        dev_net_set(dev, wiphy_net(wiphy));
3057        dev->ieee80211_ptr = &priv->wdev;
3058        dev->ieee80211_ptr->iftype = priv->bss_mode;
3059        SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3060
3061        dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3062        dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3063        dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN;
3064        dev->ethtool_ops = &mwifiex_ethtool_ops;
3065
3066        mdev_priv = netdev_priv(dev);
3067        *((unsigned long *) mdev_priv) = (unsigned long) priv;
3068
3069        SET_NETDEV_DEV(dev, adapter->dev);
3070
3071        priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3072                                                  WQ_HIGHPRI |
3073                                                  WQ_MEM_RECLAIM |
3074                                                  WQ_UNBOUND, 1, name);
3075        if (!priv->dfs_cac_workqueue) {
3076                mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3077                ret = -ENOMEM;
3078                goto err_alloc_cac;
3079        }
3080
3081        INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3082
3083        priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3084                                                      WQ_HIGHPRI | WQ_UNBOUND |
3085                                                      WQ_MEM_RECLAIM, 1, name);
3086        if (!priv->dfs_chan_sw_workqueue) {
3087                mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3088                ret = -ENOMEM;
3089                goto err_alloc_chsw;
3090        }
3091
3092        INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3093                          mwifiex_dfs_chan_sw_work_queue);
3094
3095        mutex_init(&priv->async_mutex);
3096
3097        /* Register network device */
3098        if (cfg80211_register_netdevice(dev)) {
3099                mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3100                ret = -EFAULT;
3101                goto err_reg_netdev;
3102        }
3103
3104        mwifiex_dbg(adapter, INFO,
3105                    "info: %s: Marvell 802.11 Adapter\n", dev->name);
3106
3107#ifdef CONFIG_DEBUG_FS
3108        mwifiex_dev_debugfs_init(priv);
3109#endif
3110
3111        switch (type) {
3112        case NL80211_IFTYPE_UNSPECIFIED:
3113        case NL80211_IFTYPE_STATION:
3114        case NL80211_IFTYPE_ADHOC:
3115                adapter->curr_iface_comb.sta_intf++;
3116                break;
3117        case NL80211_IFTYPE_AP:
3118                adapter->curr_iface_comb.uap_intf++;
3119                break;
3120        case NL80211_IFTYPE_P2P_CLIENT:
3121                adapter->curr_iface_comb.p2p_intf++;
3122                break;
3123        default:
3124                /* This should be dead code; checked above */
3125                mwifiex_dbg(adapter, ERROR, "type not supported\n");
3126                return ERR_PTR(-EINVAL);
3127        }
3128
3129        return &priv->wdev;
3130
3131err_reg_netdev:
3132        destroy_workqueue(priv->dfs_chan_sw_workqueue);
3133        priv->dfs_chan_sw_workqueue = NULL;
3134err_alloc_chsw:
3135        destroy_workqueue(priv->dfs_cac_workqueue);
3136        priv->dfs_cac_workqueue = NULL;
3137err_alloc_cac:
3138        free_netdev(dev);
3139        priv->netdev = NULL;
3140err_sta_init:
3141err_set_bss_mode:
3142err_alloc_netdev:
3143        memset(&priv->wdev, 0, sizeof(priv->wdev));
3144        priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3145        priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3146        return ERR_PTR(ret);
3147}
3148EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3149
3150/*
3151 * del_virtual_intf: remove the virtual interface determined by dev
3152 */
3153int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3154{
3155        struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3156        struct mwifiex_adapter *adapter = priv->adapter;
3157        struct sk_buff *skb, *tmp;
3158
3159#ifdef CONFIG_DEBUG_FS
3160        mwifiex_dev_debugfs_remove(priv);
3161#endif
3162
3163        if (priv->sched_scanning)
3164                priv->sched_scanning = false;
3165
3166        mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3167
3168        skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3169                skb_unlink(skb, &priv->bypass_txq);
3170                mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3171        }
3172
3173        if (netif_carrier_ok(priv->netdev))
3174                netif_carrier_off(priv->netdev);
3175
3176        if (wdev->netdev->reg_state == NETREG_REGISTERED)
3177                cfg80211_unregister_netdevice(wdev->netdev);
3178
3179        if (priv->dfs_cac_workqueue) {
3180                flush_workqueue(priv->dfs_cac_workqueue);
3181                destroy_workqueue(priv->dfs_cac_workqueue);
3182                priv->dfs_cac_workqueue = NULL;
3183        }
3184
3185        if (priv->dfs_chan_sw_workqueue) {
3186                flush_workqueue(priv->dfs_chan_sw_workqueue);
3187                destroy_workqueue(priv->dfs_chan_sw_workqueue);
3188                priv->dfs_chan_sw_workqueue = NULL;
3189        }
3190        /* Clear the priv in adapter */
3191        priv->netdev = NULL;
3192
3193        switch (priv->bss_mode) {
3194        case NL80211_IFTYPE_UNSPECIFIED:
3195        case NL80211_IFTYPE_STATION:
3196        case NL80211_IFTYPE_ADHOC:
3197                adapter->curr_iface_comb.sta_intf--;
3198                break;
3199        case NL80211_IFTYPE_AP:
3200                adapter->curr_iface_comb.uap_intf--;
3201                break;
3202        case NL80211_IFTYPE_P2P_CLIENT:
3203        case NL80211_IFTYPE_P2P_GO:
3204                adapter->curr_iface_comb.p2p_intf--;
3205                break;
3206        default:
3207                mwifiex_dbg(adapter, ERROR,
3208                            "del_virtual_intf: type not supported\n");
3209                break;
3210        }
3211
3212        priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3213
3214        if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3215            GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3216                kfree(priv->hist_data);
3217
3218        return 0;
3219}
3220EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3221
3222static bool
3223mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3224                             u8 max_byte_seq)
3225{
3226        int j, k, valid_byte_cnt = 0;
3227        bool dont_care_byte = false;
3228
3229        for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3230                for (k = 0; k < 8; k++) {
3231                        if (pat->mask[j] & 1 << k) {
3232                                memcpy(byte_seq + valid_byte_cnt,
3233                                       &pat->pattern[j * 8 + k], 1);
3234                                valid_byte_cnt++;
3235                                if (dont_care_byte)
3236                                        return false;
3237                        } else {
3238                                if (valid_byte_cnt)
3239                                        dont_care_byte = true;
3240                        }
3241
3242                        /* wildcard bytes record as the offset
3243                         * before the valid byte
3244                         */
3245                        if (!valid_byte_cnt && !dont_care_byte)
3246                                pat->pkt_offset++;
3247
3248                        if (valid_byte_cnt > max_byte_seq)
3249                                return false;
3250                }
3251        }
3252
3253        byte_seq[max_byte_seq] = valid_byte_cnt;
3254
3255        return true;
3256}
3257
3258#ifdef CONFIG_PM
3259static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3260                                           struct mwifiex_mef_entry *mef_entry)
3261{
3262        int i, filt_num = 0, num_ipv4 = 0;
3263        struct in_device *in_dev;
3264        struct in_ifaddr *ifa;
3265        __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3266        struct mwifiex_adapter *adapter = priv->adapter;
3267
3268        mef_entry->mode = MEF_MODE_HOST_SLEEP;
3269        mef_entry->action = MEF_ACTION_AUTO_ARP;
3270
3271        /* Enable ARP offload feature */
3272        memset(ips, 0, sizeof(ips));
3273        for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3274                if (adapter->priv[i]->netdev) {
3275                        in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3276                        if (!in_dev)
3277                                continue;
3278                        ifa = rtnl_dereference(in_dev->ifa_list);
3279                        if (!ifa || !ifa->ifa_local)
3280                                continue;
3281                        ips[i] = ifa->ifa_local;
3282                        num_ipv4++;
3283                }
3284        }
3285
3286        for (i = 0; i < num_ipv4; i++) {
3287                if (!ips[i])
3288                        continue;
3289                mef_entry->filter[filt_num].repeat = 1;
3290                memcpy(mef_entry->filter[filt_num].byte_seq,
3291                       (u8 *)&ips[i], sizeof(ips[i]));
3292                mef_entry->filter[filt_num].
3293                        byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3294                        sizeof(ips[i]);
3295                mef_entry->filter[filt_num].offset = 46;
3296                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3297                if (filt_num) {
3298                        mef_entry->filter[filt_num].filt_action =
3299                                TYPE_OR;
3300                }
3301                filt_num++;
3302        }
3303
3304        mef_entry->filter[filt_num].repeat = 1;
3305        mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3306        mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3307        mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3308        mef_entry->filter[filt_num].offset = 20;
3309        mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3310        mef_entry->filter[filt_num].filt_action = TYPE_AND;
3311}
3312
3313static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3314                                        struct mwifiex_ds_mef_cfg *mef_cfg,
3315                                        struct mwifiex_mef_entry *mef_entry,
3316                                        struct cfg80211_wowlan *wowlan)
3317{
3318        int i, filt_num = 0, ret = 0;
3319        bool first_pat = true;
3320        u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3321        static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3322        static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3323
3324        mef_entry->mode = MEF_MODE_HOST_SLEEP;
3325        mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3326
3327        for (i = 0; i < wowlan->n_patterns; i++) {
3328                memset(byte_seq, 0, sizeof(byte_seq));
3329                if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3330                                        byte_seq,
3331                                        MWIFIEX_MEF_MAX_BYTESEQ)) {
3332                        mwifiex_dbg(priv->adapter, ERROR,
3333                                    "Pattern not supported\n");
3334                        return -EOPNOTSUPP;
3335                }
3336
3337                if (!wowlan->patterns[i].pkt_offset) {
3338                        if (!(byte_seq[0] & 0x01) &&
3339                            (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3340                                mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3341                                continue;
3342                        } else if (is_broadcast_ether_addr(byte_seq)) {
3343                                mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3344                                continue;
3345                        } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3346                                    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3347                                   (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3348                                    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3349                                mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3350                                continue;
3351                        }
3352                }
3353                mef_entry->filter[filt_num].repeat = 1;
3354                mef_entry->filter[filt_num].offset =
3355                        wowlan->patterns[i].pkt_offset;
3356                memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3357                                sizeof(byte_seq));
3358                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3359
3360                if (first_pat) {
3361                        first_pat = false;
3362                        mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3363                } else {
3364                        mef_entry->filter[filt_num].filt_action = TYPE_AND;
3365                }
3366
3367                filt_num++;
3368        }
3369
3370        if (wowlan->magic_pkt) {
3371                mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3372                mef_entry->filter[filt_num].repeat = 16;
3373                memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3374                                ETH_ALEN);
3375                mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3376                        ETH_ALEN;
3377                mef_entry->filter[filt_num].offset = 28;
3378                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3379                if (filt_num)
3380                        mef_entry->filter[filt_num].filt_action = TYPE_OR;
3381
3382                filt_num++;
3383                mef_entry->filter[filt_num].repeat = 16;
3384                memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3385                                ETH_ALEN);
3386                mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3387                        ETH_ALEN;
3388                mef_entry->filter[filt_num].offset = 56;
3389                mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3390                mef_entry->filter[filt_num].filt_action = TYPE_OR;
3391                mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3392        }
3393        return ret;
3394}
3395
3396static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3397                                  struct cfg80211_wowlan *wowlan)
3398{
3399        int ret = 0, num_entries = 1;
3400        struct mwifiex_ds_mef_cfg mef_cfg;
3401        struct mwifiex_mef_entry *mef_entry;
3402
3403        if (wowlan->n_patterns || wowlan->magic_pkt)
3404                num_entries++;
3405
3406        mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3407        if (!mef_entry)
3408                return -ENOMEM;
3409
3410        memset(&mef_cfg, 0, sizeof(mef_cfg));
3411        mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3412                MWIFIEX_CRITERIA_UNICAST;
3413        mef_cfg.num_entries = num_entries;
3414        mef_cfg.mef_entry = mef_entry;
3415
3416        mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3417
3418        if (wowlan->n_patterns || wowlan->magic_pkt) {
3419                ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3420                                                   &mef_entry[1], wowlan);
3421                if (ret)
3422                        goto err;
3423        }
3424
3425        if (!mef_cfg.criteria)
3426                mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3427                        MWIFIEX_CRITERIA_UNICAST |
3428                        MWIFIEX_CRITERIA_MULTICAST;
3429
3430        ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3431                        HostCmd_ACT_GEN_SET, 0,
3432                        &mef_cfg, true);
3433
3434err:
3435        kfree(mef_entry);
3436        return ret;
3437}
3438
3439static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3440                                    struct cfg80211_wowlan *wowlan)
3441{
3442        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3443        struct mwifiex_ds_hs_cfg hs_cfg;
3444        int i, ret = 0, retry_num = 10;
3445        struct mwifiex_private *priv;
3446        struct mwifiex_private *sta_priv =
3447                        mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3448
3449        sta_priv->scan_aborting = true;
3450        for (i = 0; i < adapter->priv_num; i++) {
3451                priv = adapter->priv[i];
3452                mwifiex_abort_cac(priv);
3453        }
3454
3455        mwifiex_cancel_all_pending_cmd(adapter);
3456
3457        for (i = 0; i < adapter->priv_num; i++) {
3458                priv = adapter->priv[i];
3459                if (priv && priv->netdev)
3460                        netif_device_detach(priv->netdev);
3461        }
3462
3463        for (i = 0; i < retry_num; i++) {
3464                if (!mwifiex_wmm_lists_empty(adapter) ||
3465                    !mwifiex_bypass_txlist_empty(adapter) ||
3466                    !skb_queue_empty(&adapter->tx_data_q))
3467                        usleep_range(10000, 15000);
3468                else
3469                        break;
3470        }
3471
3472        if (!wowlan) {
3473                mwifiex_dbg(adapter, ERROR,
3474                            "None of the WOWLAN triggers enabled\n");
3475                ret = 0;
3476                goto done;
3477        }
3478
3479        if (!sta_priv->media_connected && !wowlan->nd_config) {
3480                mwifiex_dbg(adapter, ERROR,
3481                            "Can not configure WOWLAN in disconnected state\n");
3482                ret = 0;
3483                goto done;
3484        }
3485
3486        ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3487        if (ret) {
3488                mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3489                goto done;
3490        }
3491
3492        memset(&hs_cfg, 0, sizeof(hs_cfg));
3493        hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3494
3495        if (wowlan->nd_config) {
3496                mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3497                hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3498                mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3499                                                  wowlan->nd_config);
3500        }
3501
3502        if (wowlan->disconnect) {
3503                hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3504                mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3505        }
3506
3507        hs_cfg.is_invoke_hostcmd = false;
3508        hs_cfg.gpio = adapter->hs_cfg.gpio;
3509        hs_cfg.gap = adapter->hs_cfg.gap;
3510        ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3511                                    MWIFIEX_SYNC_CMD, &hs_cfg);
3512        if (ret)
3513                mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3514
3515done:
3516        sta_priv->scan_aborting = false;
3517        return ret;
3518}
3519
3520static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3521{
3522        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3523        struct mwifiex_private *priv;
3524        struct mwifiex_ds_wakeup_reason wakeup_reason;
3525        struct cfg80211_wowlan_wakeup wakeup_report;
3526        int i;
3527        bool report_wakeup_reason = true;
3528
3529        for (i = 0; i < adapter->priv_num; i++) {
3530                priv = adapter->priv[i];
3531                if (priv && priv->netdev)
3532                        netif_device_attach(priv->netdev);
3533        }
3534
3535        if (!wiphy->wowlan_config)
3536                goto done;
3537
3538        priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3539        mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3540                                  &wakeup_reason);
3541        memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3542
3543        wakeup_report.pattern_idx = -1;
3544
3545        switch (wakeup_reason.hs_wakeup_reason) {
3546        case NO_HSWAKEUP_REASON:
3547                break;
3548        case BCAST_DATA_MATCHED:
3549                break;
3550        case MCAST_DATA_MATCHED:
3551                break;
3552        case UCAST_DATA_MATCHED:
3553                break;
3554        case MASKTABLE_EVENT_MATCHED:
3555                break;
3556        case NON_MASKABLE_EVENT_MATCHED:
3557                if (wiphy->wowlan_config->disconnect)
3558                        wakeup_report.disconnect = true;
3559                if (wiphy->wowlan_config->nd_config)
3560                        wakeup_report.net_detect = adapter->nd_info;
3561                break;
3562        case NON_MASKABLE_CONDITION_MATCHED:
3563                break;
3564        case MAGIC_PATTERN_MATCHED:
3565                if (wiphy->wowlan_config->magic_pkt)
3566                        wakeup_report.magic_pkt = true;
3567                if (wiphy->wowlan_config->n_patterns)
3568                        wakeup_report.pattern_idx = 1;
3569                break;
3570        case GTK_REKEY_FAILURE:
3571                if (wiphy->wowlan_config->gtk_rekey_failure)
3572                        wakeup_report.gtk_rekey_failure = true;
3573                break;
3574        default:
3575                report_wakeup_reason = false;
3576                break;
3577        }
3578
3579        if (report_wakeup_reason)
3580                cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3581                                              GFP_KERNEL);
3582
3583done:
3584        if (adapter->nd_info) {
3585                for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3586                        kfree(adapter->nd_info->matches[i]);
3587                kfree(adapter->nd_info);
3588                adapter->nd_info = NULL;
3589        }
3590
3591        return 0;
3592}
3593
3594static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3595                                       bool enabled)
3596{
3597        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3598
3599        device_set_wakeup_enable(adapter->dev, enabled);
3600}
3601
3602static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3603                                  struct cfg80211_gtk_rekey_data *data)
3604{
3605        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3606
3607        if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3608                return -EOPNOTSUPP;
3609
3610        return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3611                                HostCmd_ACT_GEN_SET, 0, data, true);
3612}
3613
3614#endif
3615
3616static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3617{
3618        static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3619        static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3620        static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3621
3622        if ((byte_seq[0] & 0x01) &&
3623            (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3624                return PACKET_TYPE_UNICAST;
3625        else if (!memcmp(byte_seq, bc_mac, 4))
3626                return PACKET_TYPE_BROADCAST;
3627        else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3628                  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3629                 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3630                  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3631                return PACKET_TYPE_MULTICAST;
3632
3633        return 0;
3634}
3635
3636static int
3637mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3638                                struct cfg80211_coalesce_rules *crule,
3639                                struct mwifiex_coalesce_rule *mrule)
3640{
3641        u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3642        struct filt_field_param *param;
3643        int i;
3644
3645        mrule->max_coalescing_delay = crule->delay;
3646
3647        param = mrule->params;
3648
3649        for (i = 0; i < crule->n_patterns; i++) {
3650                memset(byte_seq, 0, sizeof(byte_seq));
3651                if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3652                                                  byte_seq,
3653                                                MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3654                        mwifiex_dbg(priv->adapter, ERROR,
3655                                    "Pattern not supported\n");
3656                        return -EOPNOTSUPP;
3657                }
3658
3659                if (!crule->patterns[i].pkt_offset) {
3660                        u8 pkt_type;
3661
3662                        pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3663                        if (pkt_type && mrule->pkt_type) {
3664                                mwifiex_dbg(priv->adapter, ERROR,
3665                                            "Multiple packet types not allowed\n");
3666                                return -EOPNOTSUPP;
3667                        } else if (pkt_type) {
3668                                mrule->pkt_type = pkt_type;
3669                                continue;
3670                        }
3671                }
3672
3673                if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3674                        param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3675                else
3676                        param->operation = RECV_FILTER_MATCH_TYPE_NE;
3677
3678                param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3679                memcpy(param->operand_byte_stream, byte_seq,
3680                       param->operand_len);
3681                param->offset = crule->patterns[i].pkt_offset;
3682                param++;
3683
3684                mrule->num_of_fields++;
3685        }
3686
3687        if (!mrule->pkt_type) {
3688                mwifiex_dbg(priv->adapter, ERROR,
3689                            "Packet type can not be determined\n");
3690                return -EOPNOTSUPP;
3691        }
3692
3693        return 0;
3694}
3695
3696static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3697                                         struct cfg80211_coalesce *coalesce)
3698{
3699        struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3700        int i, ret;
3701        struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3702        struct mwifiex_private *priv =
3703                        mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3704
3705        memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3706        if (!coalesce) {
3707                mwifiex_dbg(adapter, WARN,
3708                            "Disable coalesce and reset all previous rules\n");
3709                return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3710                                        HostCmd_ACT_GEN_SET, 0,
3711                                        &coalesce_cfg, true);
3712        }
3713
3714        coalesce_cfg.num_of_rules = coalesce->n_rules;
3715        for (i = 0; i < coalesce->n_rules; i++) {
3716                ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3717                                                      &coalesce_cfg.rule[i]);
3718                if (ret) {
3719                        mwifiex_dbg(adapter, ERROR,
3720                                    "Recheck the patterns provided for rule %d\n",
3721                                i + 1);
3722                        return ret;
3723                }
3724        }
3725
3726        return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3727                                HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3728}
3729
3730/* cfg80211 ops handler for tdls_mgmt.
3731 * Function prepares TDLS action frame packets and forwards them to FW
3732 */
3733static int
3734mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3735                           const u8 *peer, u8 action_code, u8 dialog_token,
3736                           u16 status_code, u32 peer_capability,
3737                           bool initiator, const u8 *extra_ies,
3738                           size_t extra_ies_len)
3739{
3740        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3741        int ret;
3742
3743        if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3744                return -EOPNOTSUPP;
3745
3746        /* make sure we are in station mode and connected */
3747        if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3748                return -EOPNOTSUPP;
3749
3750        switch (action_code) {
3751        case WLAN_TDLS_SETUP_REQUEST:
3752                mwifiex_dbg(priv->adapter, MSG,
3753                            "Send TDLS Setup Request to %pM status_code=%d\n",
3754                            peer, status_code);
3755                mwifiex_add_auto_tdls_peer(priv, peer);
3756                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3757                                                   dialog_token, status_code,
3758                                                   extra_ies, extra_ies_len);
3759                break;
3760        case WLAN_TDLS_SETUP_RESPONSE:
3761                mwifiex_add_auto_tdls_peer(priv, peer);
3762                mwifiex_dbg(priv->adapter, MSG,
3763                            "Send TDLS Setup Response to %pM status_code=%d\n",
3764                            peer, status_code);
3765                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3766                                                   dialog_token, status_code,
3767                                                   extra_ies, extra_ies_len);
3768                break;
3769        case WLAN_TDLS_SETUP_CONFIRM:
3770                mwifiex_dbg(priv->adapter, MSG,
3771                            "Send TDLS Confirm to %pM status_code=%d\n", peer,
3772                            status_code);
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_TEARDOWN:
3778                mwifiex_dbg(priv->adapter, MSG,
3779                            "Send TDLS Tear down 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_TDLS_DISCOVERY_REQUEST:
3785                mwifiex_dbg(priv->adapter, MSG,
3786                            "Send TDLS Discovery Request to %pM\n", peer);
3787                ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3788                                                   dialog_token, status_code,
3789                                                   extra_ies, extra_ies_len);
3790                break;
3791        case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3792                mwifiex_dbg(priv->adapter, MSG,
3793                            "Send TDLS Discovery Response to %pM\n", peer);
3794                ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3795                                                   dialog_token, status_code,
3796                                                   extra_ies, extra_ies_len);
3797                break;
3798        default:
3799                mwifiex_dbg(priv->adapter, ERROR,
3800                            "Unknown TDLS mgmt/action frame %pM\n", peer);
3801                ret = -EINVAL;
3802                break;
3803        }
3804
3805        return ret;
3806}
3807
3808static int
3809mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3810                           const u8 *peer, enum nl80211_tdls_operation action)
3811{
3812        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3813
3814        if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3815            !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3816                return -EOPNOTSUPP;
3817
3818        /* make sure we are in station mode and connected */
3819        if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3820                return -EOPNOTSUPP;
3821
3822        mwifiex_dbg(priv->adapter, MSG,
3823                    "TDLS peer=%pM, oper=%d\n", peer, action);
3824
3825        switch (action) {
3826        case NL80211_TDLS_ENABLE_LINK:
3827                action = MWIFIEX_TDLS_ENABLE_LINK;
3828                break;
3829        case NL80211_TDLS_DISABLE_LINK:
3830                action = MWIFIEX_TDLS_DISABLE_LINK;
3831                break;
3832        case NL80211_TDLS_TEARDOWN:
3833                /* shouldn't happen!*/
3834                mwifiex_dbg(priv->adapter, ERROR,
3835                            "tdls_oper: teardown from driver not supported\n");
3836                return -EINVAL;
3837        case NL80211_TDLS_SETUP:
3838                /* shouldn't happen!*/
3839                mwifiex_dbg(priv->adapter, ERROR,
3840                            "tdls_oper: setup from driver not supported\n");
3841                return -EINVAL;
3842        case NL80211_TDLS_DISCOVERY_REQ:
3843                /* shouldn't happen!*/
3844                mwifiex_dbg(priv->adapter, ERROR,
3845                            "tdls_oper: discovery from driver not supported\n");
3846                return -EINVAL;
3847        default:
3848                mwifiex_dbg(priv->adapter, ERROR,
3849                            "tdls_oper: operation not supported\n");
3850                return -EOPNOTSUPP;
3851        }
3852
3853        return mwifiex_tdls_oper(priv, peer, action);
3854}
3855
3856static int
3857mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3858                                  const u8 *addr, u8 oper_class,
3859                                  struct cfg80211_chan_def *chandef)
3860{
3861        struct mwifiex_sta_node *sta_ptr;
3862        u16 chan;
3863        u8 second_chan_offset, band;
3864        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);