// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2009-2012  Realtek Corporation.*/

#include "wifi.h"
#include "rc.h"
#include "base.h"
#include "efuse.h"
#include "cam.h"
#include "ps.h"
#include "regd.h"
#include "pci.h"
#include <linux/ip.h>
#include <linux/module.h>
#include <linux/udp.h>

/*
 *NOTICE!!!: This file will be very big, we should
 *keep it clear under following roles:
 *
 *This file include following parts, so, if you add new
 *functions into this file, please check which part it
 *should includes. or check if you should add new part
 *for this file:
 *
 *1) mac80211 init functions
 *2) tx information functions
 *3) functions called by core.c
 *4) wq & timer callback functions
 *5) frame process functions
 *6) IOT functions
 *7) sysfs functions
 *8) vif functions
 *9) ...
 */

/*********************************************************
 *
 * mac80211 init functions
 *
 *********************************************************/
static struct ieee80211_channel rtl_channeltable_2g[] = {
        {.center_freq = 2412, .hw_value = 1,},
        {.center_freq = 2417, .hw_value = 2,},
        {.center_freq = 2422, .hw_value = 3,},
        {.center_freq = 2427, .hw_value = 4,},
        {.center_freq = 2432, .hw_value = 5,},
        {.center_freq = 2437, .hw_value = 6,},
        {.center_freq = 2442, .hw_value = 7,},
        {.center_freq = 2447, .hw_value = 8,},
        {.center_freq = 2452, .hw_value = 9,},
        {.center_freq = 2457, .hw_value = 10,},
        {.center_freq = 2462, .hw_value = 11,},
        {.center_freq = 2467, .hw_value = 12,},
        {.center_freq = 2472, .hw_value = 13,},
        {.center_freq = 2484, .hw_value = 14,},
};

static struct ieee80211_channel rtl_channeltable_5g[] = {
        {.center_freq = 5180, .hw_value = 36,},
        {.center_freq = 5200, .hw_value = 40,},
        {.center_freq = 5220, .hw_value = 44,},
        {.center_freq = 5240, .hw_value = 48,},
        {.center_freq = 5260, .hw_value = 52,},
        {.center_freq = 5280, .hw_value = 56,},
        {.center_freq = 5300, .hw_value = 60,},
        {.center_freq = 5320, .hw_value = 64,},
        {.center_freq = 5500, .hw_value = 100,},
        {.center_freq = 5520, .hw_value = 104,},
        {.center_freq = 5540, .hw_value = 108,},
        {.center_freq = 5560, .hw_value = 112,},
        {.center_freq = 5580, .hw_value = 116,},
        {.center_freq = 5600, .hw_value = 120,},
        {.center_freq = 5620, .hw_value = 124,},
        {.center_freq = 5640, .hw_value = 128,},
        {.center_freq = 5660, .hw_value = 132,},
        {.center_freq = 5680, .hw_value = 136,},
        {.center_freq = 5700, .hw_value = 140,},
        {.center_freq = 5745, .hw_value = 149,},
        {.center_freq = 5765, .hw_value = 153,},
        {.center_freq = 5785, .hw_value = 157,},
        {.center_freq = 5805, .hw_value = 161,},
        {.center_freq = 5825, .hw_value = 165,},
};

static struct ieee80211_rate rtl_ratetable_2g[] = {
        {.bitrate = 10, .hw_value = 0x00,},
        {.bitrate = 20, .hw_value = 0x01,},
        {.bitrate = 55, .hw_value = 0x02,},
        {.bitrate = 110, .hw_value = 0x03,},
        {.bitrate = 60, .hw_value = 0x04,},
        {.bitrate = 90, .hw_value = 0x05,},
        {.bitrate = 120, .hw_value = 0x06,},
        {.bitrate = 180, .hw_value = 0x07,},
        {.bitrate = 240, .hw_value = 0x08,},
        {.bitrate = 360, .hw_value = 0x09,},
        {.bitrate = 480, .hw_value = 0x0a,},
        {.bitrate = 540, .hw_value = 0x0b,},
};

static struct ieee80211_rate rtl_ratetable_5g[] = {
        {.bitrate = 60, .hw_value = 0x04,},
        {.bitrate = 90, .hw_value = 0x05,},
        {.bitrate = 120, .hw_value = 0x06,},
        {.bitrate = 180, .hw_value = 0x07,},
        {.bitrate = 240, .hw_value = 0x08,},
        {.bitrate = 360, .hw_value = 0x09,},
        {.bitrate = 480, .hw_value = 0x0a,},
        {.bitrate = 540, .hw_value = 0x0b,},
};

static const struct ieee80211_supported_band rtl_band_2ghz = {
        .band = NL80211_BAND_2GHZ,

        .channels = rtl_channeltable_2g,
        .n_channels = ARRAY_SIZE(rtl_channeltable_2g),

        .bitrates = rtl_ratetable_2g,
        .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),

        .ht_cap = {0},
};

static struct ieee80211_supported_band rtl_band_5ghz = {
        .band = NL80211_BAND_5GHZ,

        .channels = rtl_channeltable_5g,
        .n_channels = ARRAY_SIZE(rtl_channeltable_5g),

        .bitrates = rtl_ratetable_5g,
        .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),

        .ht_cap = {0},
};

static const u8 tid_to_ac[] = {
        2, /* IEEE80211_AC_BE */
        3, /* IEEE80211_AC_BK */
        3, /* IEEE80211_AC_BK */
        2, /* IEEE80211_AC_BE */
        1, /* IEEE80211_AC_VI */
        1, /* IEEE80211_AC_VI */
        0, /* IEEE80211_AC_VO */
        0, /* IEEE80211_AC_VO */
};

u8 rtl_tid_to_ac(u8 tid)
{
        return tid_to_ac[tid];
}
EXPORT_SYMBOL_GPL(rtl_tid_to_ac);

static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
                                  struct ieee80211_sta_ht_cap *ht_cap)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_phy *rtlphy = &(rtlpriv->phy);

        ht_cap->ht_supported = true;
        ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
            IEEE80211_HT_CAP_SGI_40 |
            IEEE80211_HT_CAP_SGI_20 |
            IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;

        if (rtlpriv->rtlhal.disable_amsdu_8k)
                ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;

        /*
         *Maximum length of AMPDU that the STA can receive.
         *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
         */
        ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;

        /*Minimum MPDU start spacing , */
        ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;

        ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;

        /*hw->wiphy->bands[NL80211_BAND_2GHZ]
         *base on ant_num
         *rx_mask: RX mask
         *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
         *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
         *if rx_ant >= 3 rx_mask[2]= 0xff;
         *if BW_40 rx_mask[4]= 0x01;
         *highest supported RX rate
         */
        if (rtlpriv->dm.supp_phymode_switch) {
                pr_info("Support phy mode switch\n");

                ht_cap->mcs.rx_mask[0] = 0xFF;
                ht_cap->mcs.rx_mask[1] = 0xFF;
                ht_cap->mcs.rx_mask[4] = 0x01;

                ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
        } else {
                if (get_rf_type(rtlphy) == RF_1T2R ||
                    get_rf_type(rtlphy) == RF_2T2R) {
                        rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
                                "1T2R or 2T2R\n");
                        ht_cap->mcs.rx_mask[0] = 0xFF;
                        ht_cap->mcs.rx_mask[1] = 0xFF;
                        ht_cap->mcs.rx_mask[4] = 0x01;

                        ht_cap->mcs.rx_highest =
                                 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
                } else if (get_rf_type(rtlphy) == RF_1T1R) {
                        rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");

                        ht_cap->mcs.rx_mask[0] = 0xFF;
                        ht_cap->mcs.rx_mask[1] = 0x00;
                        ht_cap->mcs.rx_mask[4] = 0x01;

                        ht_cap->mcs.rx_highest =
                                 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
                }
        }
}

static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
                                   struct ieee80211_sta_vht_cap *vht_cap)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);

        if (!(rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT))
                return;

        if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE ||
            rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
                u16 mcs_map;

                vht_cap->vht_supported = true;
                vht_cap->cap =
                        IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
                        IEEE80211_VHT_CAP_SHORT_GI_80 |
                        IEEE80211_VHT_CAP_TXSTBC |
                        IEEE80211_VHT_CAP_RXSTBC_1 |
                        IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
                        IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
                        IEEE80211_VHT_CAP_HTC_VHT |
                        IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
                        IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
                        IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
                        0;

                mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
                        IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;

                vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
                vht_cap->vht_mcs.rx_highest =
                        cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
                vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
                vht_cap->vht_mcs.tx_highest =
                        cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
        } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
                u16 mcs_map;

                vht_cap->vht_supported = true;
                vht_cap->cap =
                        IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
                        IEEE80211_VHT_CAP_SHORT_GI_80 |
                        IEEE80211_VHT_CAP_TXSTBC |
                        IEEE80211_VHT_CAP_RXSTBC_1 |
                        IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
                        IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
                        IEEE80211_VHT_CAP_HTC_VHT |
                        IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
                        IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
                        IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
                        0;

                mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;

                vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
                vht_cap->vht_mcs.rx_highest =
                        cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
                vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
                vht_cap->vht_mcs.tx_highest =
                        cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
        }
}

static void _rtl_init_mac80211(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
        struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
        struct ieee80211_supported_band *sband;

        if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
            rtlhal->bandset == BAND_ON_BOTH) {
                /* 1: 2.4 G bands */
                /* <1> use  mac->bands as mem for hw->wiphy->bands */
                sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);

                /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
                 * to default value(1T1R) */
                memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
                                sizeof(struct ieee80211_supported_band));

                /* <3> init ht cap base on ant_num */
                _rtl_init_hw_ht_capab(hw, &sband->ht_cap);

                /* <4> set mac->sband to wiphy->sband */
                hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;

                /* 2: 5 G bands */
                /* <1> use  mac->bands as mem for hw->wiphy->bands */
                sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);

                /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
                 * to default value(1T1R) */
                memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
                                sizeof(struct ieee80211_supported_band));

                /* <3> init ht cap base on ant_num */
                _rtl_init_hw_ht_capab(hw, &sband->ht_cap);

                _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
                /* <4> set mac->sband to wiphy->sband */
                hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
        } else {
                if (rtlhal->current_bandtype == BAND_ON_2_4G) {
                        /* <1> use  mac->bands as mem for hw->wiphy->bands */
                        sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);

                        /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
                         * to default value(1T1R) */
                        memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
                               &rtl_band_2ghz,
                               sizeof(struct ieee80211_supported_band));

                        /* <3> init ht cap base on ant_num */
                        _rtl_init_hw_ht_capab(hw, &sband->ht_cap);

                        /* <4> set mac->sband to wiphy->sband */
                        hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
                } else if (rtlhal->current_bandtype == BAND_ON_5G) {
                        /* <1> use  mac->bands as mem for hw->wiphy->bands */
                        sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);

                        /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
                         * to default value(1T1R) */
                        memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
                               &rtl_band_5ghz,
                               sizeof(struct ieee80211_supported_band));

                        /* <3> init ht cap base on ant_num */
                        _rtl_init_hw_ht_capab(hw, &sband->ht_cap);

                        _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
                        /* <4> set mac->sband to wiphy->sband */
                        hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
                } else {
                        pr_err("Err BAND %d\n",
                               rtlhal->current_bandtype);
                }
        }
        /* <5> set hw caps */
        ieee80211_hw_set(hw, SIGNAL_DBM);
        ieee80211_hw_set(hw, RX_INCLUDES_FCS);
        ieee80211_hw_set(hw, AMPDU_AGGREGATION);
        ieee80211_hw_set(hw, MFP_CAPABLE);
        ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
        ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
        ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);

        /* swlps or hwlps has been set in diff chip in init_sw_vars */
        if (rtlpriv->psc.swctrl_lps) {
                ieee80211_hw_set(hw, SUPPORTS_PS);
                ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
        }
        if (rtlpriv->psc.fwctrl_lps) {
                ieee80211_hw_set(hw, SUPPORTS_PS);
                ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
        }
        hw->wiphy->interface_modes =
            BIT(NL80211_IFTYPE_AP) |
            BIT(NL80211_IFTYPE_STATION) |
            BIT(NL80211_IFTYPE_ADHOC) |
            BIT(NL80211_IFTYPE_MESH_POINT) |
            BIT(NL80211_IFTYPE_P2P_CLIENT) |
            BIT(NL80211_IFTYPE_P2P_GO);
        hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;

        hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;

        hw->wiphy->rts_threshold = 2347;

        hw->queues = AC_MAX;
        hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;

        /* TODO: Correct this value for our hw */
        hw->max_listen_interval = MAX_LISTEN_INTERVAL;
        hw->max_rate_tries = MAX_RATE_TRIES;
        /* hw->max_rates = 1; */
        hw->sta_data_size = sizeof(struct rtl_sta_info);

/* wowlan is not supported by kernel if CONFIG_PM is not defined */
#ifdef CONFIG_PM
        if (rtlpriv->psc.wo_wlan_mode) {
                if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
                        rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
                if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
                        rtlpriv->wowlan.n_patterns =
                                MAX_SUPPORT_WOL_PATTERN_NUM;
                        rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
                        rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
                }
                hw->wiphy->wowlan = &rtlpriv->wowlan;
        }
#endif

        /* <6> mac address */
        if (is_valid_ether_addr(rtlefuse->dev_addr)) {
                SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
        } else {
                u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };

                get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
                SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
        }
}

static void rtl_watchdog_wq_callback(struct work_struct *work);
static void rtl_fwevt_wq_callback(struct work_struct *work);
static void rtl_c2hcmd_wq_callback(struct work_struct *work);

static int _rtl_init_deferred_work(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct workqueue_struct *wq;

        wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
        if (!wq)
                return -ENOMEM;

        /* <1> timer */
        timer_setup(&rtlpriv->works.watchdog_timer,
                    rtl_watch_dog_timer_callback, 0);
        timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
                    rtl_easy_concurrent_retrytimer_callback, 0);
        /* <2> work queue */
        rtlpriv->works.hw = hw;
        rtlpriv->works.rtl_wq = wq;

        INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
                          rtl_watchdog_wq_callback);
        INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
                          rtl_ips_nic_off_wq_callback);
        INIT_DELAYED_WORK(&rtlpriv->works.ps_work, rtl_swlps_wq_callback);
        INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
                          rtl_swlps_rfon_wq_callback);
        INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, rtl_fwevt_wq_callback);
        INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, rtl_c2hcmd_wq_callback);
        return 0;
}

void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);

        del_timer_sync(&rtlpriv->works.watchdog_timer);

        cancel_delayed_work_sync(&rtlpriv->works.watchdog_wq);
        if (ips_wq)
                cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
        else
                cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
        cancel_delayed_work_sync(&rtlpriv->works.ps_work);
        cancel_delayed_work_sync(&rtlpriv->works.ps_rfon_wq);
        cancel_delayed_work_sync(&rtlpriv->works.fwevt_wq);
        cancel_delayed_work_sync(&rtlpriv->works.c2hcmd_wq);
}
EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);

void rtl_init_rfkill(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);

        bool radio_state;
        bool blocked;
        u8 valid = 0;

        /*set init state to on */
        rtlpriv->rfkill.rfkill_state = true;
        wiphy_rfkill_set_hw_state(hw->wiphy, 0);

        radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);

        if (valid) {
                pr_info("rtlwifi: wireless switch is %s\n",
                        rtlpriv->rfkill.rfkill_state ? "on" : "off");

                rtlpriv->rfkill.rfkill_state = radio_state;

                blocked = rtlpriv->rfkill.rfkill_state != 1;
                wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
        }

        wiphy_rfkill_start_polling(hw->wiphy);
}
EXPORT_SYMBOL(rtl_init_rfkill);

void rtl_deinit_rfkill(struct ieee80211_hw *hw)
{
        wiphy_rfkill_stop_polling(hw->wiphy);
}
EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);

int rtl_init_core(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));

        /* <1> init mac80211 */
        _rtl_init_mac80211(hw);
        rtlmac->hw = hw;

        /* <2> rate control register */
        hw->rate_control_algorithm = "rtl_rc";

        /*
         * <3> init CRDA must come after init
         * mac80211 hw  in _rtl_init_mac80211.
         */
        if (rtl_regd_init(hw, rtl_reg_notifier)) {
                pr_err("REGD init failed\n");
                return 1;
        }

        /* <4> locks */
        mutex_init(&rtlpriv->locks.conf_mutex);
        mutex_init(&rtlpriv->locks.ips_mutex);
        mutex_init(&rtlpriv->locks.lps_mutex);
        spin_lock_init(&rtlpriv->locks.irq_th_lock);
        spin_lock_init(&rtlpriv->locks.h2c_lock);
        spin_lock_init(&rtlpriv->locks.rf_ps_lock);
        spin_lock_init(&rtlpriv->locks.rf_lock);
        spin_lock_init(&rtlpriv->locks.waitq_lock);
        spin_lock_init(&rtlpriv->locks.entry_list_lock);
        spin_lock_init(&rtlpriv->locks.scan_list_lock);
        spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
        spin_lock_init(&rtlpriv->locks.fw_ps_lock);
        spin_lock_init(&rtlpriv->locks.iqk_lock);
        /* <5> init list */
        INIT_LIST_HEAD(&rtlpriv->entry_list);
        INIT_LIST_HEAD(&rtlpriv->scan_list.list);
        skb_queue_head_init(&rtlpriv->tx_report.queue);
        skb_queue_head_init(&rtlpriv->c2hcmd_queue);

        rtlmac->link_state = MAC80211_NOLINK;

        /* <6> init deferred work */
        return _rtl_init_deferred_work(hw);
}
EXPORT_SYMBOL_GPL(rtl_init_core);

static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
                                            bool timeout);

void rtl_deinit_core(struct ieee80211_hw *hw)
{
        rtl_c2hcmd_launcher(hw, 0);
        rtl_free_entries_from_scan_list(hw);
        rtl_free_entries_from_ack_queue(hw, false);
}
EXPORT_SYMBOL_GPL(rtl_deinit_core);

void rtl_init_rx_config(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));

        rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
}
EXPORT_SYMBOL_GPL(rtl_init_rx_config);

/*********************************************************
 *
 * tx information functions
 *
 *********************************************************/
static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
                                          struct rtl_tcb_desc *tcb_desc,
                                          struct ieee80211_tx_info *info)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        u8 rate_flag = info->control.rates[0].flags;

        tcb_desc->use_shortpreamble = false;

        /* 1M can only use Long Preamble. 11B spec */
        if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
                return;
        else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
                tcb_desc->use_shortpreamble = true;

        return;
}

static void _rtl_query_shortgi(struct ieee80211_hw *hw,
                               struct ieee80211_sta *sta,
                               struct rtl_tcb_desc *tcb_desc,
                               struct ieee80211_tx_info *info)
{
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
        u8 rate_flag = info->control.rates[0].flags;
        u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
        u8 sgi_80 = 0, bw_80 = 0;

        tcb_desc->use_shortgi = false;

        if (sta == NULL)
                return;

        sgi_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
        sgi_20 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
        sgi_80 = sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;

        if (!sta->deflink.ht_cap.ht_supported &&
            !sta->deflink.vht_cap.vht_supported)
                return;

        if (!sgi_40 && !sgi_20)
                return;

        if (mac->opmode == NL80211_IFTYPE_STATION) {
                bw_40 = mac->bw_40;
                bw_80 = mac->bw_80;
        } else if (mac->opmode == NL80211_IFTYPE_AP ||
                 mac->opmode == NL80211_IFTYPE_ADHOC ||
                 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
                bw_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
                bw_80 = sta->deflink.vht_cap.vht_supported;
        }

        if (bw_80) {
                if (sgi_80)
                        tcb_desc->use_shortgi = true;
                else
                        tcb_desc->use_shortgi = false;
        } else {
                if (bw_40 && sgi_40)
                        tcb_desc->use_shortgi = true;
                else if (!bw_40 && sgi_20)
                        tcb_desc->use_shortgi = true;
        }

        if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
                tcb_desc->use_shortgi = false;
}

static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
                                       struct rtl_tcb_desc *tcb_desc,
                                       struct ieee80211_tx_info *info)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        u8 rate_flag = info->control.rates[0].flags;

        /* Common Settings */
        tcb_desc->rts_stbc = false;
        tcb_desc->cts_enable = false;
        tcb_desc->rts_sc = 0;
        tcb_desc->rts_bw = false;
        tcb_desc->rts_use_shortpreamble = false;
        tcb_desc->rts_use_shortgi = false;

        if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
                /* Use CTS-to-SELF in protection mode. */
                tcb_desc->rts_enable = true;
                tcb_desc->cts_enable = true;
                tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
        } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
                /* Use RTS-CTS in protection mode. */
                tcb_desc->rts_enable = true;
                tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
        }
}

u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
                            enum wireless_mode wirelessmode)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_phy *rtlphy = &rtlpriv->phy;
        u8 ret = 0;

        switch (rate_index) {
        case RATR_INX_WIRELESS_NGB:
                if (rtlphy->rf_type == RF_1T1R)
                        ret = RATEID_IDX_BGN_40M_1SS;
                else
                        ret = RATEID_IDX_BGN_40M_2SS;
                ; break;
        case RATR_INX_WIRELESS_N:
        case RATR_INX_WIRELESS_NG:
                if (rtlphy->rf_type == RF_1T1R)
                        ret = RATEID_IDX_GN_N1SS;
                else
                        ret = RATEID_IDX_GN_N2SS;
                ; break;
        case RATR_INX_WIRELESS_NB:
                if (rtlphy->rf_type == RF_1T1R)
                        ret = RATEID_IDX_BGN_20M_1SS_BN;
                else
                        ret = RATEID_IDX_BGN_20M_2SS_BN;
                ; break;
        case RATR_INX_WIRELESS_GB:
                ret = RATEID_IDX_BG;
                break;
        case RATR_INX_WIRELESS_G:
                ret = RATEID_IDX_G;
                break;
        case RATR_INX_WIRELESS_B:
                ret = RATEID_IDX_B;
                break;
        case RATR_INX_WIRELESS_MC:
                if (wirelessmode == WIRELESS_MODE_B ||
                    wirelessmode == WIRELESS_MODE_G ||
                    wirelessmode == WIRELESS_MODE_N_24G ||
                    wirelessmode == WIRELESS_MODE_AC_24G)
                        ret = RATEID_IDX_BG;
                else
                        ret = RATEID_IDX_G;
                break;
        case RATR_INX_WIRELESS_AC_5N:
                if (rtlphy->rf_type == RF_1T1R)
                        ret = RATEID_IDX_VHT_1SS;
                else
                        ret = RATEID_IDX_VHT_2SS;
                break;
        case RATR_INX_WIRELESS_AC_24N:
                if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
                        if (rtlphy->rf_type == RF_1T1R)
                                ret = RATEID_IDX_VHT_1SS;
                        else
                                ret = RATEID_IDX_VHT_2SS;
                } else {
                        if (rtlphy->rf_type == RF_1T1R)
                                ret = RATEID_IDX_MIX1;
                        else
                                ret = RATEID_IDX_MIX2;
                }
                break;
        default:
                ret = RATEID_IDX_BGN_40M_2SS;
                break;
        }
        return ret;
}
EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);

static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
                                   struct ieee80211_sta *sta,
                                   struct rtl_tcb_desc *tcb_desc)
{
#define SET_RATE_ID(rate_id)                                    \
        ({typeof(rate_id) _id = rate_id;                        \
          ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?     \
                rtl_mrate_idx_to_arfr_id(hw, _id,               \
                        (sta_entry ? sta_entry->wireless_mode : \
                         WIRELESS_MODE_G)) :                    \
                _id); })

        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
        struct rtl_sta_info *sta_entry = NULL;
        u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);

        if (sta) {
                sta_entry = (struct rtl_sta_info *) sta->drv_priv;
                ratr_index = sta_entry->ratr_index;
        }
        if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
                if (mac->opmode == NL80211_IFTYPE_STATION) {
                        tcb_desc->ratr_index = 0;
                } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
                                mac->opmode == NL80211_IFTYPE_MESH_POINT) {
                        if (tcb_desc->multicast || tcb_desc->broadcast) {
                                tcb_desc->hw_rate =
                                    rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
                                tcb_desc->use_driver_rate = 1;
                                tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_MC);
                        } else {
                                tcb_desc->ratr_index = ratr_index;
                        }
                } else if (mac->opmode == NL80211_IFTYPE_AP) {
                        tcb_desc->ratr_index = ratr_index;
                }
        }

        if (rtlpriv->dm.useramask) {
                tcb_desc->ratr_index = ratr_index;
                /* TODO we will differentiate adhoc and station future  */
                if (mac->opmode == NL80211_IFTYPE_STATION ||
                    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
                        tcb_desc->mac_id = 0;

                        if (sta &&
                            (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
                                ;       /* use sta_entry->ratr_index */
                        else if (mac->mode == WIRELESS_MODE_AC_5G)
                                tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
                        else if (mac->mode == WIRELESS_MODE_AC_24G)
                                tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
                        else if (mac->mode == WIRELESS_MODE_N_24G)
                                tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_NGB);
                        else if (mac->mode == WIRELESS_MODE_N_5G)
                                tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_NG);
                        else if (mac->mode & WIRELESS_MODE_G)
                                tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_GB);
                        else if (mac->mode & WIRELESS_MODE_B)
                                tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_B);
                        else if (mac->mode & WIRELESS_MODE_A)
                                tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_G);

                } else if (mac->opmode == NL80211_IFTYPE_AP ||
                        mac->opmode == NL80211_IFTYPE_ADHOC) {
                        if (NULL != sta) {
                                if (sta->aid > 0)
                                        tcb_desc->mac_id = sta->aid + 1;
                                else
                                        tcb_desc->mac_id = 1;
                        } else {
                                tcb_desc->mac_id = 0;
                        }
                }
        }
#undef SET_RATE_ID
}

static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
                                      struct ieee80211_sta *sta,
                                      struct rtl_tcb_desc *tcb_desc)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));

        tcb_desc->packet_bw = false;
        if (!sta)
                return;
        if (mac->opmode == NL80211_IFTYPE_AP ||
            mac->opmode == NL80211_IFTYPE_ADHOC ||
            mac->opmode == NL80211_IFTYPE_MESH_POINT) {
                if (!(sta->deflink.ht_cap.ht_supported) ||
                    !(sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
                        return;
        } else if (mac->opmode == NL80211_IFTYPE_STATION) {
                if (!mac->bw_40 || !(sta->deflink.ht_cap.ht_supported))
                        return;
        }
        if (tcb_desc->multicast || tcb_desc->broadcast)
                return;

        /*use legency rate, shall use 20MHz */
        if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
                return;

        tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;

        if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) {
                if (mac->opmode == NL80211_IFTYPE_AP ||
                    mac->opmode == NL80211_IFTYPE_ADHOC ||
                    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
                        if (!(sta->deflink.vht_cap.vht_supported))
                                return;
                } else if (mac->opmode == NL80211_IFTYPE_STATION) {
                        if (!mac->bw_80 ||
                            !(sta->deflink.vht_cap.vht_supported))
                                return;
                }
                if (tcb_desc->hw_rate <=
                        rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
                        return;
                tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
        }
}

static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
                                      struct ieee80211_sta *sta)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_phy *rtlphy = &(rtlpriv->phy);
        u8 hw_rate;
        u16 tx_mcs_map = le16_to_cpu(sta->deflink.vht_cap.vht_mcs.tx_mcs_map);

        if ((get_rf_type(rtlphy) == RF_2T2R) &&
            (tx_mcs_map & 0x000c) != 0x000c) {
                if ((tx_mcs_map & 0x000c) >> 2 ==
                        IEEE80211_VHT_MCS_SUPPORT_0_7)
                        hw_rate =
                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
                else if ((tx_mcs_map  & 0x000c) >> 2 ==
                        IEEE80211_VHT_MCS_SUPPORT_0_8)
                        hw_rate =
                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
                else
                        hw_rate =
                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
        } else {
                if ((tx_mcs_map  & 0x0003) ==
                        IEEE80211_VHT_MCS_SUPPORT_0_7)
                        hw_rate =
                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
                else if ((tx_mcs_map  & 0x0003) ==
                        IEEE80211_VHT_MCS_SUPPORT_0_8)
                        hw_rate =
                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
                else
                        hw_rate =
                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
        }

        return hw_rate;
}

static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
                                  struct ieee80211_sta *sta)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_phy *rtlphy = &rtlpriv->phy;
        u8 hw_rate;

        if (get_rf_type(rtlphy) == RF_2T2R &&
            sta->deflink.ht_cap.mcs.rx_mask[1] != 0)
                hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
        else
                hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];

        return hw_rate;
}

/* mac80211's rate_idx is like this:
 *
 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
 *
 * B/G rate:
 * (rx_status->flag & RX_FLAG_HT) = 0,
 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
 *
 * N rate:
 * (rx_status->flag & RX_FLAG_HT) = 1,
 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 *
 * 5G band:rx_status->band == NL80211_BAND_5GHZ
 * A rate:
 * (rx_status->flag & RX_FLAG_HT) = 0,
 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
 *
 * N rate:
 * (rx_status->flag & RX_FLAG_HT) = 1,
 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 *
 * VHT rates:
 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
 */
int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
                         u8 desc_rate)
{
        int rate_idx;

        if (isvht) {
                switch (desc_rate) {
                case DESC_RATEVHT1SS_MCS0:
                        rate_idx = 0;
                        break;
                case DESC_RATEVHT1SS_MCS1:
                        rate_idx = 1;
                        break;
                case DESC_RATEVHT1SS_MCS2:
                        rate_idx = 2;
                        break;
                case DESC_RATEVHT1SS_MCS3:
                        rate_idx = 3;
                        break;
                case DESC_RATEVHT1SS_MCS4:

                        rate_idx = 4;
                        break;
                case DESC_RATEVHT1SS_MCS5:
                        rate_idx = 5;
                        break;
                case DESC_RATEVHT1SS_MCS6:
                        rate_idx = 6;
                        break;
                case DESC_RATEVHT1SS_MCS7:
                        rate_idx = 7;
                        break;
                case DESC_RATEVHT1SS_MCS8:
                        rate_idx = 8;
                        break;
                case DESC_RATEVHT1SS_MCS9:
                        rate_idx = 9;
                        break;
                case DESC_RATEVHT2SS_MCS0:
                        rate_idx = 0;
                        break;
                case DESC_RATEVHT2SS_MCS1:
                        rate_idx = 1;
                        break;
                case DESC_RATEVHT2SS_MCS2:
                        rate_idx = 2;
                        break;
                case DESC_RATEVHT2SS_MCS3:
                        rate_idx = 3;
                        break;
                case DESC_RATEVHT2SS_MCS4:
                        rate_idx = 4;
                        break;
                case DESC_RATEVHT2SS_MCS5:
                        rate_idx = 5;
                        break;
                case DESC_RATEVHT2SS_MCS6:
                        rate_idx = 6;
                        break;
                case DESC_RATEVHT2SS_MCS7:
                        rate_idx = 7;
                        break;
                case DESC_RATEVHT2SS_MCS8:
                        rate_idx = 8;
                        break;
                case DESC_RATEVHT2SS_MCS9:
                        rate_idx = 9;
                        break;
                default:
                        rate_idx = 0;
                        break;
                }
                return rate_idx;
        }
        if (false == isht) {
                if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
                        switch (desc_rate) {
                        case DESC_RATE1M:
                                rate_idx = 0;
                                break;
                        case DESC_RATE2M:
                                rate_idx = 1;
                                break;
                        case DESC_RATE5_5M:
                                rate_idx = 2;
                                break;
                        case DESC_RATE11M:
                                rate_idx = 3;
                                break;
                        case DESC_RATE6M:
                                rate_idx = 4;
                                break;
                        case DESC_RATE9M:
                                rate_idx = 5;
                                break;
                        case DESC_RATE12M:
                                rate_idx = 6;
                                break;
                        case DESC_RATE18M:
                                rate_idx = 7;
                                break;
                        case DESC_RATE24M:
                                rate_idx = 8;
                                break;
                        case DESC_RATE36M:
                                rate_idx = 9;
                                break;
                        case DESC_RATE48M:
                                rate_idx = 10;
                                break;
                        case DESC_RATE54M:
                                rate_idx = 11;
                                break;
                        default:
                                rate_idx = 0;
                                break;
                        }
                } else {
                        switch (desc_rate) {
                        case DESC_RATE6M:
                                rate_idx = 0;
                                break;
                        case DESC_RATE9M:
                                rate_idx = 1;
                                break;
                        case DESC_RATE12M:
                                rate_idx = 2;
                                break;
                        case DESC_RATE18M:
                                rate_idx = 3;
                                break;
                        case DESC_RATE24M:
                                rate_idx = 4;
                                break;
                        case DESC_RATE36M:
                                rate_idx = 5;
                                break;
                        case DESC_RATE48M:
                                rate_idx = 6;
                                break;
                        case DESC_RATE54M:
                                rate_idx = 7;
                                break;
                        default:
                                rate_idx = 0;
                                break;
                        }
                }
        } else {
                switch (desc_rate) {
                case DESC_RATEMCS0:
                        rate_idx = 0;
                        break;
                case DESC_RATEMCS1:
                        rate_idx = 1;
                        break;
                case DESC_RATEMCS2:
                        rate_idx = 2;
                        break;
                case DESC_RATEMCS3:
                        rate_idx = 3;
                        break;
                case DESC_RATEMCS4:
                        rate_idx = 4;
                        break;
                case DESC_RATEMCS5:
                        rate_idx = 5;
                        break;
                case DESC_RATEMCS6:
                        rate_idx = 6;
                        break;
                case DESC_RATEMCS7:
                        rate_idx = 7;
                        break;
                case DESC_RATEMCS8:
                        rate_idx = 8;
                        break;
                case DESC_RATEMCS9:
                        rate_idx = 9;
                        break;
                case DESC_RATEMCS10:
                        rate_idx = 10;
                        break;
                case DESC_RATEMCS11:
                        rate_idx = 11;
                        break;
                case DESC_RATEMCS12:
                        rate_idx = 12;
                        break;
                case DESC_RATEMCS13:
                        rate_idx = 13;
                        break;
                case DESC_RATEMCS14:
                        rate_idx = 14;
                        break;
                case DESC_RATEMCS15:
                        rate_idx = 15;
                        break;
                default:
                        rate_idx = 0;
                        break;
                }
        }
        return rate_idx;
}
EXPORT_SYMBOL(rtlwifi_rate_mapping);

static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
                              struct ieee80211_tx_info *info)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct ieee80211_tx_rate *r = &info->status.rates[0];
        struct ieee80211_rate *txrate;
        u8 hw_value = 0x0;

        if (r->flags & IEEE80211_TX_RC_MCS) {
                /* HT MCS0-15 */
                hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
                           r->idx;
        } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
                /* VHT MCS0-9, NSS */
                if (ieee80211_rate_get_vht_nss(r) == 2)
                        hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
                else
                        hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];

                hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
        } else {
                /* legacy */
                txrate = ieee80211_get_tx_rate(hw, info);

                if (txrate)
                        hw_value = txrate->hw_value;
        }

        /* check 5G band */
        if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
            hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
                hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];

        return hw_value;
}

void rtl_get_tcb_desc(struct ieee80211_hw *hw,
                      struct ieee80211_tx_info *info,
                      struct ieee80211_sta *sta,
                      struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
{
#define SET_RATE_ID(rate_id)                                    \
        ({typeof(rate_id) _id = rate_id;                        \
          ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?     \
                rtl_mrate_idx_to_arfr_id(hw, _id,               \
                        (sta_entry ? sta_entry->wireless_mode : \
                         WIRELESS_MODE_G)) :                    \
                _id); })

        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
        struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
        struct rtl_sta_info *sta_entry =
                (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);

        __le16 fc = rtl_get_fc(skb);

        tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);

        if (rtl_is_tx_report_skb(hw, skb))
                tcb_desc->use_spe_rpt = 1;

        if (ieee80211_is_data(fc)) {
                /*
                 *we set data rate INX 0
                 *in rtl_rc.c   if skb is special data or
                 *mgt which need low data rate.
                 */

                /*
                 *So tcb_desc->hw_rate is just used for
                 *special data and mgt frames
                 */
                if (info->control.rates[0].idx == 0 ||
                                ieee80211_is_nullfunc(fc)) {
                        tcb_desc->use_driver_rate = true;
                        tcb_desc->ratr_index =
                                        SET_RATE_ID(RATR_INX_WIRELESS_MC);

                        tcb_desc->disable_ratefallback = 1;
                } else {
                        /*
                         *because hw will nerver use hw_rate
                         *when tcb_desc->use_driver_rate = false
                         *so we never set highest N rate here,
                         *and N rate will all be controlled by FW
                         *when tcb_desc->use_driver_rate = false
                         */
                        if (sta && sta->deflink.vht_cap.vht_supported) {
                                tcb_desc->hw_rate =
                                _rtl_get_vht_highest_n_rate(hw, sta);
                        } else {
                                if (sta && sta->deflink.ht_cap.ht_supported) {
                                        tcb_desc->hw_rate =
                                                _rtl_get_highest_n_rate(hw, sta);
                                } else {
                                        if (rtlmac->mode == WIRELESS_MODE_B) {
                                                tcb_desc->hw_rate =
                                                    rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
                                        } else {
                                                tcb_desc->hw_rate =
                                                    rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
                                        }
                                }
                        }
                }

                if (is_multicast_ether_addr(hdr->addr1))
                        tcb_desc->multicast = 1;
                else if (is_broadcast_ether_addr(hdr->addr1))
                        tcb_desc->broadcast = 1;

                _rtl_txrate_selectmode(hw, sta, tcb_desc);
                _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
                _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
                _rtl_query_shortgi(hw, sta, tcb_desc, info);
                _rtl_query_protection_mode(hw, tcb_desc, info);
        } else {
                tcb_desc->use_driver_rate = true;
                tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
                tcb_desc->disable_ratefallback = 1;
                tcb_desc->mac_id = 0;
                tcb_desc->packet_bw = false;
        }
#undef SET_RATE_ID
}
EXPORT_SYMBOL(rtl_get_tcb_desc);

bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
{
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        __le16 fc = rtl_get_fc(skb);

        if (rtlpriv->dm.supp_phymode_switch &&
            mac->link_state < MAC80211_LINKED &&
            (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
                if (rtlpriv->cfg->ops->chk_switch_dmdp)
                        rtlpriv->cfg->ops->chk_switch_dmdp(hw);
        }
        if (ieee80211_is_auth(fc)) {
                rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");

                mac->link_state = MAC80211_LINKING;
                /* Dul mac */
                rtlpriv->phy.need_iqk = true;

        }

        return true;
}
EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);

struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
                                u8 *bssid, u16 tid);

static void process_agg_start(struct ieee80211_hw *hw,
                              struct ieee80211_hdr *hdr, u16 tid)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct ieee80211_rx_status rx_status = { 0 };
        struct sk_buff *skb_delba = NULL;

        skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
        if (skb_delba) {
                rx_status.freq = hw->conf.chandef.chan->center_freq;
                rx_status.band = hw->conf.chandef.chan->band;
                rx_status.flag |= RX_FLAG_DECRYPTED;
                rx_status.flag |= RX_FLAG_MACTIME_START;
                rx_status.rate_idx = 0;
                rx_status.signal = 50 + 10;
                memcpy(IEEE80211_SKB_RXCB(skb_delba),
                       &rx_status, sizeof(rx_status));
                RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
                              "fake del\n",
                              skb_delba->data,
                              skb_delba->len);
                ieee80211_rx_irqsafe(hw, skb_delba);
        }
}

bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
{
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
        struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        __le16 fc = rtl_get_fc(skb);
        u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
        u8 category;

        if (!ieee80211_is_action(fc))
                return true;

        category = *act;
        act++;
        switch (category) {
        case ACT_CAT_BA:
                switch (*act) {
                case ACT_ADDBAREQ:
                        if (mac->act_scanning)
                                return false;

                        rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
                                "%s ACT_ADDBAREQ From :%pM\n",
                                is_tx ? "Tx" : "Rx", hdr->addr2);
                        RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
                                skb->data, skb->len);
                        if (!is_tx) {
                                struct ieee80211_sta *sta = NULL;
                                struct rtl_sta_info *sta_entry = NULL;
                                struct rtl_tid_data *tid_data;
                                struct ieee80211_mgmt *mgmt = (void *)skb->data;
                                u16 capab = 0, tid = 0;

                                rcu_read_lock();
                                sta = rtl_find_sta(hw, hdr->addr3);
                                if (sta == NULL) {
                                        rtl_dbg(rtlpriv, COMP_SEND | COMP_RECV,
                                                DBG_DMESG, "sta is NULL\n");
                                        rcu_read_unlock();
                                        return true;
                                }

                                sta_entry =
                                        (struct rtl_sta_info *)sta->drv_priv;
                                if (!sta_entry) {
                                        rcu_read_unlock();
                                        return true;
                                }
                                capab =
                                  le16_to_cpu(mgmt->u.action.u.addba_req.capab);
                                tid = (capab &
                                       IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
                                if (tid >= MAX_TID_COUNT) {
                                        rcu_read_unlock();
                                        return true;
                                }
                                tid_data = &sta_entry->tids[tid];
                                if (tid_data->agg.rx_agg_state ==
                                    RTL_RX_AGG_START)
                                        process_agg_start(hw, hdr, tid);
                                rcu_read_unlock();
                        }
                        break;
                case ACT_ADDBARSP:
                        rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
                                "%s ACT_ADDBARSP From :%pM\n",
                                is_tx ? "Tx" : "Rx", hdr->addr2);
                        break;
                case ACT_DELBA:
                        rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
                                "ACT_ADDBADEL From :%pM\n", hdr->addr2);
                        break;
                }
                break;
        default:
                break;
        }

        return true;
}
EXPORT_SYMBOL_GPL(rtl_action_proc);

static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
                             int type)
{
        struct ieee80211_hw *hw = rtlpriv->hw;

        rtlpriv->ra.is_special_data = true;
        if (rtlpriv->cfg->ops->get_btc_status())
                rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
                                        rtlpriv, type);
        rtl_lps_leave(hw, false);
        ppsc->last_delaylps_stamp_jiffies = jiffies;
}

static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
                                        struct sk_buff *skb, bool is_enc)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
        u8 encrypt_header_len = 0;
        u8 offset;

        switch (rtlpriv->sec.pairwise_enc_algorithm) {
        case WEP40_ENCRYPTION:
        case WEP104_ENCRYPTION:
                encrypt_header_len = 4;/*WEP_IV_LEN*/
                break;
        case TKIP_ENCRYPTION:
                encrypt_header_len = 8;/*TKIP_IV_LEN*/
                break;
        case AESCCMP_ENCRYPTION:
                encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
                break;
        default:
                break;
        }

        offset = mac_hdr_len + SNAP_SIZE;
        if (is_enc)
                offset += encrypt_header_len;

        return skb->data + offset;
}

/*should call before software enc*/
u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
                       bool is_enc)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
        __le16 fc = rtl_get_fc(skb);
        u16 ether_type;
        const u8 *ether_type_ptr;
        const struct iphdr *ip;

        if (!ieee80211_is_data(fc))
                goto end;

        ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
        ether_type = be16_to_cpup((__be16 *)ether_type_ptr);

        if (ETH_P_IP == ether_type) {
                ip = (struct iphdr *)((u8 *)ether_type_ptr +
                     PROTOC_TYPE_SIZE);
                if (IPPROTO_UDP == ip->protocol) {
                        struct udphdr *udp = (struct udphdr *)((u8 *)ip +
                                                               (ip->ihl << 2));
                        if (((((u8 *)udp)[1] == 68) &&
                             (((u8 *)udp)[3] == 67)) ||
                            ((((u8 *)udp)[1] == 67) &&
                             (((u8 *)udp)[3] == 68))) {
                                /* 68 : UDP BOOTP client
                                 * 67 : UDP BOOTP server
                                 */
                                rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV),
                                        DBG_DMESG, "dhcp %s !!\n",
                                        (is_tx) ? "Tx" : "Rx");

                                if (is_tx)
                                        setup_special_tx(rtlpriv, ppsc,
                                                         PACKET_DHCP);

                                return true;
                        }
                }
        } else if (ETH_P_ARP == ether_type) {
                if (is_tx)
                        setup_special_tx(rtlpriv, ppsc, PACKET_ARP);

                return true;
        } else if (ETH_P_PAE == ether_type) {
                /* EAPOL is seens as in-4way */
                rtlpriv->btcoexist.btc_info.in_4way = true;
                rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;

                rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
                        "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");

                if (is_tx) {
                        rtlpriv->ra.is_special_data = true;
                        rtl_lps_leave(hw, false);
                        ppsc->last_delaylps_stamp_jiffies = jiffies;

                        setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
                }

                return true;
        } else if (ETH_P_IPV6 == ether_type) {
                /* TODO: Handle any IPv6 cases that need special handling.
                 * For now, always return false
                 */
                goto end;
        }

end:
        rtlpriv->ra.is_special_data = false;
        return false;
}
EXPORT_SYMBOL_GPL(rtl_is_special_data);

void rtl_tx_ackqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_tx_report *tx_report = &rtlpriv->tx_report;

        __skb_queue_tail(&tx_report->queue, skb);
}
EXPORT_SYMBOL_GPL(rtl_tx_ackqueue);

static void rtl_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
                          bool ack)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct ieee80211_tx_info *info;

        info = IEEE80211_SKB_CB(skb);
        ieee80211_tx_info_clear_status(info);
        if (ack) {
                rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
                        "tx report: ack\n");
                info->flags |= IEEE80211_TX_STAT_ACK;
        } else {
                rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
                        "tx report: not ack\n");
                info->flags &= ~IEEE80211_TX_STAT_ACK;
        }
        ieee80211_tx_status_irqsafe(hw, skb);
}

bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
{
        u16 ether_type;
        const u8 *ether_type_ptr;
        __le16 fc = rtl_get_fc(skb);

        ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
        ether_type = be16_to_cpup((__be16 *)ether_type_ptr);

        if (ether_type == ETH_P_PAE || ieee80211_is_nullfunc(fc))
                return true;

        return false;
}

static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw,
                                struct rtlwifi_tx_info *tx_info)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
        u16 sn;

        /* SW_DEFINE[11:8] are reserved (driver fills zeros)
         * SW_DEFINE[7:2] are used by driver
         * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
         */
        sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;

        tx_report->last_sent_sn = sn;
        tx_report->last_sent_time = jiffies;
        tx_info->sn = sn;
        tx_info->send_time = tx_report->last_sent_time;
        rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
                "Send TX-Report sn=0x%X\n", sn);

        return sn;
}

void rtl_set_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
                       struct ieee80211_hw *hw, struct rtlwifi_tx_info *tx_info)
{
        if (ptcb_desc->use_spe_rpt) {
                u16 sn = rtl_get_tx_report_sn(hw, tx_info);

                SET_TX_DESC_SPE_RPT(pdesc, 1);
                SET_TX_DESC_SW_DEFINE(pdesc, sn);
        }
}
EXPORT_SYMBOL_GPL(rtl_set_tx_report);

void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
        struct rtlwifi_tx_info *tx_info;
        struct sk_buff_head *queue = &tx_report->queue;
        struct sk_buff *skb;
        u16 sn;
        u8 st, retry;

        if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) {
                sn = GET_TX_REPORT_SN_V2(tmp_buf);
                st = GET_TX_REPORT_ST_V2(tmp_buf);
                retry = GET_TX_REPORT_RETRY_V2(tmp_buf);
        } else {
                sn = GET_TX_REPORT_SN_V1(tmp_buf);
                st = GET_TX_REPORT_ST_V1(tmp_buf);
                retry = GET_TX_REPORT_RETRY_V1(tmp_buf);
        }

        tx_report->last_recv_sn = sn;

        skb_queue_walk(queue, skb) {
                tx_info = rtl_tx_skb_cb_info(skb);
                if (tx_info->sn == sn) {
                        skb_unlink(skb, queue);
                        rtl_tx_status(hw, skb, st == 0);
                        break;
                }
        }
        rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
                "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
                st, sn, retry);
}
EXPORT_SYMBOL_GPL(rtl_tx_report_handler);

bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_tx_report *tx_report = &rtlpriv->tx_report;

        if (tx_report->last_sent_sn == tx_report->last_recv_sn)
                return true;

        if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
                rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
                        "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
                        tx_report->last_sent_sn, tx_report->last_recv_sn);
                return true;    /* 3 sec. (timeout) seen as acked */
        }

        return false;
}

void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        int i;

        for (i = 0; i < wait_ms; i++) {
                if (rtl_check_tx_report_acked(hw))
                        break;
                usleep_range(1000, 2000);
                rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
                        "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
        }
}

u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
                           struct ieee80211_vif *vif,
                           enum wireless_mode wirelessmode,
                           struct ieee80211_tx_queue_params *param)
{
        u32 reg = 0;
        u8 sifstime = 10;
        u8 slottime = 20;

        /* AIFS = AIFSN * slot time + SIFS */
        switch (wirelessmode) {
        case WIRELESS_MODE_A:
        case WIRELESS_MODE_N_24G:
        case WIRELESS_MODE_N_5G:
        case WIRELESS_MODE_AC_5G:
        case WIRELESS_MODE_AC_24G:
                sifstime = 16;
                slottime = 9;
                break;
        case WIRELESS_MODE_G:
                slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
                break;
        default:
                break;
        }

        reg |= (param->txop & 0x7FF) << 16;
        reg |= (fls(param->cw_max) & 0xF) << 12;
        reg |= (fls(param->cw_min) & 0xF) << 8;
        reg |= (param->aifs & 0x0F) * slottime + sifstime;

        return reg;
}
EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);

/*********************************************************
 *
 * functions called by core.c
 *
 *********************************************************/
int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
                     struct ieee80211_sta *sta, u16 tid, u16 *ssn)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_tid_data *tid_data;
        struct rtl_sta_info *sta_entry = NULL;

        if (sta == NULL)
                return -EINVAL;

        if (unlikely(tid >= MAX_TID_COUNT))
                return -EINVAL;

        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
        if (!sta_entry)
                return -ENXIO;
        tid_data = &sta_entry->tids[tid];

        rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
                "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
                *ssn);

        tid_data->agg.agg_state = RTL_AGG_START;

        return IEEE80211_AMPDU_TX_START_IMMEDIATE;
}

int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
                    struct ieee80211_sta *sta, u16 tid)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_sta_info *sta_entry = NULL;

        if (sta == NULL)
                return -EINVAL;

        rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
                "on ra = %pM tid = %d\n", sta->addr, tid);

        if (unlikely(tid >= MAX_TID_COUNT))
                return -EINVAL;

        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
        sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;

        ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
        return 0;
}

int rtl_rx_agg_start(struct ieee80211_hw *hw,
                     struct ieee80211_sta *sta, u16 tid)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_tid_data *tid_data;
        struct rtl_sta_info *sta_entry = NULL;
        u8 reject_agg;

        if (sta == NULL)
                return -EINVAL;

        if (unlikely(tid >= MAX_TID_COUNT))
                return -EINVAL;

        if (rtlpriv->cfg->ops->get_btc_status()) {
                rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
                                                              &reject_agg,
                                                              NULL, NULL);
                if (reject_agg)
                        return -EINVAL;
        }

        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
        if (!sta_entry)
                return -ENXIO;
        tid_data = &sta_entry->tids[tid];

        rtl_dbg(rtlpriv, COMP_RECV, DBG_DMESG,
                "on ra = %pM tid = %d\n", sta->addr, tid);

        tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
        return 0;
}

int rtl_rx_agg_stop(struct ieee80211_hw *hw,
                    struct ieee80211_sta *sta, u16 tid)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_sta_info *sta_entry = NULL;

        if (sta == NULL)
                return -EINVAL;

        rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
                "on ra = %pM tid = %d\n", sta->addr, tid);

        if (unlikely(tid >= MAX_TID_COUNT))
                return -EINVAL;

        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
        sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;

        return 0;
}

int rtl_tx_agg_oper(struct ieee80211_hw *hw,
                struct ieee80211_sta *sta, u16 tid)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_sta_info *sta_entry = NULL;

        if (sta == NULL)
                return -EINVAL;

        rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
                "on ra = %pM tid = %d\n", sta->addr, tid);

        if (unlikely(tid >= MAX_TID_COUNT))
                return -EINVAL;

        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
        sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;

        return 0;
}

void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
{
        struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
        u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;

        if (rtlpriv->cfg->ops->get_btc_status())
                btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
                                           &ctrl_agg_size, &agg_size);

        rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
                "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
                reject_agg, ctrl_agg_size, agg_size);

        rtlpriv->hw->max_rx_aggregation_subframes =
                (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF_HT);
}
EXPORT_SYMBOL(rtl_rx_ampdu_apply);

/*********************************************************
 *
 * wq & timer callback functions
 *
 *********************************************************/
/* this function is used for roaming */
void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;

        if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
                return;

        if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
                return;

        /* check if this really is a beacon */
        if (!ieee80211_is_beacon(hdr->frame_control) &&
            !ieee80211_is_probe_resp(hdr->frame_control))
                return;

        /* min. beacon length + FCS_LEN */
        if (skb->len <= 40 + FCS_LEN)
                return;

        /* and only beacons from the associated BSSID, please */
        if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
                return;

        rtlpriv->link_info.bcn_rx_inperiod++;
}
EXPORT_SYMBOL_GPL(rtl_beacon_statistic);

static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_bssid_entry *entry, *next;

        list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
                list_del(&entry->list);
                kfree(entry);
                rtlpriv->scan_list.num--;
        }
}

static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
                                            bool chk_timeout)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
        struct sk_buff_head *queue = &tx_report->queue;
        struct sk_buff *skb, *tmp;
        struct rtlwifi_tx_info *tx_info;

        skb_queue_walk_safe(queue, skb, tmp) {
                tx_info = rtl_tx_skb_cb_info(skb);
                if (chk_timeout &&
                    time_after(tx_info->send_time + HZ, jiffies))
                        continue;
                skb_unlink(skb, queue);
                rtl_tx_status(hw, skb, false);
        }
}

void rtl_scan_list_expire(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_bssid_entry *entry, *next;
        unsigned long flags;

        spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);

        list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
                /* 180 seconds */
                if (jiffies_to_msecs(jiffies - entry->age) < 180000)
                        continue;

                list_del(&entry->list);
                rtlpriv->scan_list.num--;

                rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
                        "BSSID=%pM is expire in scan list (total=%d)\n",
                        entry->bssid, rtlpriv->scan_list.num);
                kfree(entry);
        }

        spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);

        rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
}

void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
        unsigned long flags;

        struct rtl_bssid_entry *entry = NULL, *iter;

        /* check if it is scanning */