/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 ******************************************************************************/
#define _OS_INTFS_C_

#include <osdep_service.h>
#include <drv_types.h>
#include <xmit_osdep.h>
#include <recv_osdep.h>
#include <hal_intf.h>
#include <rtw_version.h>

#include <rtl8723a_hal.h>

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Realtek Wireless Lan Driver");
MODULE_AUTHOR("Realtek Semiconductor Corp.");
MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
MODULE_AUTHOR("Jes Sorensen <Jes.Sorensen@redhat.com>");
MODULE_VERSION(DRIVERVERSION);
MODULE_FIRMWARE("rtlwifi/rtl8723aufw_A.bin");
MODULE_FIRMWARE("rtlwifi/rtl8723aufw_B.bin");
MODULE_FIRMWARE("rtlwifi/rtl8723aufw_B_NoBT.bin");

/* module param defaults */
static int rtw_chip_version;
static int rtw_rfintfs = HWPI;
static int rtw_debug = 1;

static int rtw_channel = 1;/* ad-hoc support requirement */
static int rtw_wireless_mode = WIRELESS_11BG_24N;
static int rtw_vrtl_carrier_sense = AUTO_VCS;
static int rtw_vcs_type = RTS_CTS;/*  */
static int rtw_rts_thresh = 2347;/*  */
static int rtw_frag_thresh = 2346;/*  */
static int rtw_preamble = PREAMBLE_LONG;/* long, short, auto */
static int rtw_scan_mode = 1;/* active, passive */
static int rtw_adhoc_tx_pwr = 1;
static int rtw_soft_ap;
static int rtw_power_mgnt = 1;
static int rtw_ips_mode = IPS_NORMAL;

static int rtw_smart_ps = 2;

module_param(rtw_ips_mode, int, 0644);
MODULE_PARM_DESC(rtw_ips_mode, "The default IPS mode");

static int rtw_long_retry_lmt = 7;
static int rtw_short_retry_lmt = 7;
static int rtw_busy_thresh = 40;
static int rtw_ack_policy = NORMAL_ACK;

static int rtw_acm_method;/*  0:By SW 1:By HW. */

static int rtw_wmm_enable = 1;/*  default is set to enable the wmm. */
static int rtw_uapsd_enable;

static int rtw_ht_enable = 1;
/* 0 :diable, bit(0): enable 2.4g, bit(1): enable 5g */
static int rtw_cbw40_enable = 3;
static int rtw_ampdu_enable = 1;/* for enable tx_ampdu */
/*  0: disable, bit(0):enable 2.4g, bit(1):enable 5g, default is set to enable
 * 2.4GHZ for IOT issue with bufflao's AP at 5GHZ
 */
static int rtw_rx_stbc = 1;
static int rtw_ampdu_amsdu;/*  0: disabled, 1:enabled, 2:auto */

/* Use 2 path Tx to transmit MCS0~7 and legacy mode */
static int rtw_lowrate_two_xmit = 1;

/* int rf_config = RF_1T2R;  1T2R */
static int rtw_rf_config = RF_819X_MAX_TYPE;  /* auto */
static int rtw_low_power;
static int rtw_wifi_spec;
static int rtw_channel_plan = RT_CHANNEL_DOMAIN_MAX;

#ifdef CONFIG_8723AU_BT_COEXIST
static int rtw_btcoex_enable = 1;
static int rtw_bt_iso = 2;/*  0:Low, 1:High, 2:From Efuse */
/*  0:Idle, 1:None-SCO, 2:SCO, 3:From Counter, 4.Busy, 5.OtherBusy */
static int rtw_bt_sco = 3;
/*  0:Disable BT control A-MPDU, 1:Enable BT control A-MPDU. */
static int rtw_bt_ampdu = 1;
#endif

/*  0:Reject AP's Add BA req, 1:Accept AP's Add BA req. */
static int rtw_AcceptAddbaReq = true;

static int rtw_antdiv_cfg = 2; /*  0:OFF , 1:ON, 2:decide by Efuse config */
static int rtw_antdiv_type; /* 0:decide by efuse */

static int rtw_enusbss;/* 0:disable, 1:enable */

static int rtw_hwpdn_mode = 2;/* 0:disable, 1:enable, 2: by EFUSE config */

static int rtw_hwpwrp_detect; /* HW power  ping detect 0:disable , 1:enable */

static int rtw_hw_wps_pbc = 1;

static int rtw_80211d;

static int rtw_regulatory_id = 0xff;/*  Regulatory tab id, 0xff = follow efuse's setting */

module_param(rtw_regulatory_id, int, 0644);

static char *ifname = "wlan%d";
module_param(ifname, charp, 0644);
MODULE_PARM_DESC(ifname, "The default name to allocate for first interface");

static char *if2name = "wlan%d";
module_param(if2name, charp, 0644);
MODULE_PARM_DESC(if2name, "The default name to allocate for second interface");

module_param(rtw_channel_plan, int, 0644);
module_param(rtw_chip_version, int, 0644);
module_param(rtw_rfintfs, int, 0644);
module_param(rtw_channel, int, 0644);
module_param(rtw_wmm_enable, int, 0644);
module_param(rtw_vrtl_carrier_sense, int, 0644);
module_param(rtw_vcs_type, int, 0644);
module_param(rtw_busy_thresh, int, 0644);
module_param(rtw_ht_enable, int, 0644);
module_param(rtw_cbw40_enable, int, 0644);
module_param(rtw_ampdu_enable, int, 0644);
module_param(rtw_rx_stbc, int, 0644);
module_param(rtw_ampdu_amsdu, int, 0644);

module_param(rtw_lowrate_two_xmit, int, 0644);

module_param(rtw_rf_config, int, 0644);
module_param(rtw_power_mgnt, int, 0644);
module_param(rtw_smart_ps, int, 0644);
module_param(rtw_low_power, int, 0644);
module_param(rtw_wifi_spec, int, 0644);

module_param(rtw_antdiv_cfg, int, 0644);

module_param(rtw_enusbss, int, 0644);
module_param(rtw_hwpdn_mode, int, 0644);
module_param(rtw_hwpwrp_detect, int, 0644);

module_param(rtw_hw_wps_pbc, int, 0644);

static uint rtw_max_roaming_times = 2;
module_param(rtw_max_roaming_times, uint, 0644);
MODULE_PARM_DESC(rtw_max_roaming_times, "The max roaming times to try");

module_param(rtw_80211d, int, 0644);
MODULE_PARM_DESC(rtw_80211d, "Enable 802.11d mechanism");

#ifdef CONFIG_8723AU_BT_COEXIST
module_param(rtw_btcoex_enable, int, 0644);
MODULE_PARM_DESC(rtw_btcoex_enable, "Enable BT co-existence mechanism");
#endif

static uint rtw_notch_filter;
module_param(rtw_notch_filter, uint, 0644);
MODULE_PARM_DESC(rtw_notch_filter, "0:Disable, 1:Enable, 2:Enable only for P2P");
module_param_named(debug, rtw_debug, int, 0444);
MODULE_PARM_DESC(debug, "Set debug level (1-9) (default 1)");

static int netdev_close(struct net_device *pnetdev);

static void loadparam(struct rtw_adapter *padapter,  struct net_device *pnetdev)
{
        struct registry_priv  *registry_par = &padapter->registrypriv;

        GlobalDebugLevel23A = rtw_debug;
        registry_par->chip_version = (u8)rtw_chip_version;
        registry_par->rfintfs = (u8)rtw_rfintfs;
        memcpy(registry_par->ssid.ssid, "ANY", 3);
        registry_par->ssid.ssid_len = 3;
        registry_par->channel = (u8)rtw_channel;
        registry_par->wireless_mode = (u8)rtw_wireless_mode;
        registry_par->vrtl_carrier_sense = (u8)rtw_vrtl_carrier_sense;
        registry_par->vcs_type = (u8)rtw_vcs_type;
        registry_par->rts_thresh = (u16)rtw_rts_thresh;
        registry_par->frag_thresh = (u16)rtw_frag_thresh;
        registry_par->preamble = (u8)rtw_preamble;
        registry_par->scan_mode = (u8)rtw_scan_mode;
        registry_par->adhoc_tx_pwr = (u8)rtw_adhoc_tx_pwr;
        registry_par->soft_ap =  (u8)rtw_soft_ap;
        registry_par->smart_ps =  (u8)rtw_smart_ps;
        registry_par->power_mgnt = (u8)rtw_power_mgnt;
        registry_par->ips_mode = (u8)rtw_ips_mode;
        registry_par->long_retry_lmt = (u8)rtw_long_retry_lmt;
        registry_par->short_retry_lmt = (u8)rtw_short_retry_lmt;
        registry_par->busy_thresh = (u16)rtw_busy_thresh;
        registry_par->ack_policy = (u8)rtw_ack_policy;
        registry_par->acm_method = (u8)rtw_acm_method;
         /* UAPSD */
        registry_par->wmm_enable = (u8)rtw_wmm_enable;
        registry_par->uapsd_enable = (u8)rtw_uapsd_enable;
        registry_par->ht_enable = (u8)rtw_ht_enable;
        registry_par->cbw40_enable = (u8)rtw_cbw40_enable;
        registry_par->ampdu_enable = (u8)rtw_ampdu_enable;
        registry_par->rx_stbc = (u8)rtw_rx_stbc;
        registry_par->ampdu_amsdu = (u8)rtw_ampdu_amsdu;
        registry_par->lowrate_two_xmit = (u8)rtw_lowrate_two_xmit;
        registry_par->rf_config = (u8)rtw_rf_config;
        registry_par->low_power = (u8)rtw_low_power;
        registry_par->wifi_spec = (u8)rtw_wifi_spec;
        registry_par->channel_plan = (u8)rtw_channel_plan;
#ifdef CONFIG_8723AU_BT_COEXIST
        registry_par->btcoex = (u8)rtw_btcoex_enable;
        registry_par->bt_iso = (u8)rtw_bt_iso;
        registry_par->bt_sco = (u8)rtw_bt_sco;
        registry_par->bt_ampdu = (u8)rtw_bt_ampdu;
#endif
        registry_par->bAcceptAddbaReq = (u8)rtw_AcceptAddbaReq;
        registry_par->antdiv_cfg = (u8)rtw_antdiv_cfg;
        registry_par->antdiv_type = (u8)rtw_antdiv_type;

        /* 0:disable, 1:enable, 2:by EFUSE config */
        registry_par->hwpdn_mode = (u8)rtw_hwpdn_mode;
        /* 0:disable, 1:enable */
        registry_par->hwpwrp_detect = (u8)rtw_hwpwrp_detect;
        registry_par->hw_wps_pbc = (u8)rtw_hw_wps_pbc;
        registry_par->max_roaming_times = (u8)rtw_max_roaming_times;
        registry_par->enable80211d = (u8)rtw_80211d;
        snprintf(registry_par->ifname, 16, "%s", ifname);
        snprintf(registry_par->if2name, 16, "%s", if2name);
        registry_par->notch_filter = (u8)rtw_notch_filter;
        registry_par->regulatory_tid = (u8)rtw_regulatory_id;
}

static int rtw_net_set_mac_address(struct net_device *pnetdev, void *p)
{
        struct rtw_adapter *padapter = netdev_priv(pnetdev);
        struct sockaddr *addr = p;

        if (!padapter->bup)
                ether_addr_copy(padapter->eeprompriv.mac_addr, addr->sa_data);
        return 0;
}

static struct net_device_stats *rtw_net_get_stats(struct net_device *pnetdev)
{
        struct rtw_adapter *padapter = netdev_priv(pnetdev);
        struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
        struct recv_priv *precvpriv = &padapter->recvpriv;

        padapter->stats.tx_packets = pxmitpriv->tx_pkts;
        padapter->stats.rx_packets = precvpriv->rx_pkts;
        padapter->stats.tx_dropped = pxmitpriv->tx_drop;
        padapter->stats.rx_dropped = precvpriv->rx_drop;
        padapter->stats.tx_bytes = pxmitpriv->tx_bytes;
        padapter->stats.rx_bytes = precvpriv->rx_bytes;

        return &padapter->stats;
}

/*
 * AC to queue mapping
 *
 * AC_VO -> queue 0
 * AC_VI -> queue 1
 * AC_BE -> queue 2
 * AC_BK -> queue 3
 */
static const u16 rtw_1d_to_queue[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };

/* Given a data frame determine the 802.1p/1d tag to use. */
static u32 rtw_classify8021d(struct sk_buff *skb)
{
        u32 dscp;

        /* skb->priority values from 256->263 are magic values to
         * directly indicate a specific 802.1d priority.  This is used
         * to allow 802.1d priority to be passed directly in from VLAN
         * tags, etc.
         */
        if (skb->priority >= 256 && skb->priority <= 263)
                return skb->priority - 256;
        switch (skb->protocol) {
        case htons(ETH_P_IP):
                dscp = ip_hdr(skb)->tos & 0xfc;
                break;
        default:
                return 0;
        }
        return dscp >> 5;
}

static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb,
                            void *accel_priv,
                            select_queue_fallback_t fallback)
{
        struct rtw_adapter *padapter = netdev_priv(dev);
        struct mlme_priv *pmlmepriv = &padapter->mlmepriv;

        skb->priority = rtw_classify8021d(skb);

        if (pmlmepriv->acm_mask != 0)
                skb->priority = qos_acm23a(pmlmepriv->acm_mask, skb->priority);
        return rtw_1d_to_queue[skb->priority];
}

u16 rtw_recv_select_queue23a(struct sk_buff *skb)
{
        struct iphdr *piphdr;
        struct ethhdr *eth = (struct ethhdr *)skb->data;
        unsigned int dscp;
        u16 eth_type = get_unaligned_be16(&eth->h_proto);
        u32 priority;
        u8 *pdata = skb->data;

        switch (eth_type) {
        case ETH_P_IP:
                piphdr = (struct iphdr *)(pdata + ETH_HLEN);
                dscp = piphdr->tos & 0xfc;
                priority = dscp >> 5;
                break;
        default:
                priority = 0;
        }
        return rtw_1d_to_queue[priority];
}

static const struct net_device_ops rtw_netdev_ops = {
        .ndo_open = netdev_open23a,
        .ndo_stop = netdev_close,
        .ndo_start_xmit = rtw_xmit23a_entry23a,
        .ndo_select_queue = rtw_select_queue,
        .ndo_set_mac_address = rtw_net_set_mac_address,
        .ndo_get_stats = rtw_net_get_stats,
};

int rtw_init_netdev23a_name23a(struct net_device *pnetdev, const char *ifname)
{
        if (dev_alloc_name(pnetdev, ifname) < 0) {
                RT_TRACE(_module_os_intfs_c_, _drv_err_,
                         "dev_alloc_name, fail!\n");
        }
        netif_carrier_off(pnetdev);
        return 0;
}

static const struct device_type wlan_type = {
        .name = "wlan",
};

struct net_device *rtw_init_netdev23a(struct rtw_adapter *old_padapter)
{
        struct rtw_adapter *padapter;
        struct net_device *pnetdev;

        RT_TRACE(_module_os_intfs_c_, _drv_info_, "+init_net_dev\n");

        pnetdev = alloc_etherdev_mq(sizeof(struct rtw_adapter), 4);
        if (!pnetdev)
                return NULL;

        pnetdev->dev.type = &wlan_type;
        padapter = netdev_priv(pnetdev);
        padapter->pnetdev = pnetdev;

        DBG_8723A("register rtw_netdev_ops to netdev_ops\n");
        pnetdev->netdev_ops = &rtw_netdev_ops;

        pnetdev->watchdog_timeo = HZ*3; /* 3 second timeout */

        loadparam(padapter, pnetdev);
        return pnetdev;
}

static int rtw_init_default_value(struct rtw_adapter *padapter)
{
        struct registry_priv *pregistrypriv = &padapter->registrypriv;
        struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
        struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
        struct security_priv *psecuritypriv = &padapter->securitypriv;

        /* xmit_priv */
        pxmitpriv->vcs = pregistrypriv->vcs_type;
        /* pxmitpriv->rts_thresh = pregistrypriv->rts_thresh; */
        pxmitpriv->frag_len = pregistrypriv->frag_thresh;

        /* mlme_priv */
        pmlmepriv->scan_interval = SCAN_INTERVAL;/*  30*2 sec = 60sec */
        pmlmepriv->scan_mode = SCAN_ACTIVE;

        /* ht_priv */
        pmlmepriv->htpriv.ampdu_enable = false;/* set to disabled */

        /* security_priv */
        psecuritypriv->binstallGrpkey = 0;

         /* open system */
        psecuritypriv->dot11AuthAlgrthm = dot11AuthAlgrthm_Open;
        psecuritypriv->dot11PrivacyAlgrthm = 0;

        psecuritypriv->dot11PrivacyKeyIndex = 0;

        psecuritypriv->dot118021XGrpPrivacy = 0;
        psecuritypriv->dot118021XGrpKeyid = 1;

        psecuritypriv->ndisauthtype = Ndis802_11AuthModeOpen;
        psecuritypriv->ndisencryptstatus = Ndis802_11WEPDisabled;

        /* registry_priv */
        rtw_init_registrypriv_dev_network23a(padapter);
        rtw_update_registrypriv_dev_network23a(padapter);

        /* hal_priv */
        rtl8723a_init_default_value(padapter);

        /* misc. */
        padapter->bReadPortCancel = false;
        padapter->bWritePortCancel = false;
        return _SUCCESS;
}

int rtw_reset_drv_sw23a(struct rtw_adapter *padapter)
{
        struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
        struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;

        /* hal_priv */
        rtl8723a_init_default_value(padapter);
        padapter->bReadPortCancel = false;
        padapter->bWritePortCancel = false;
        pmlmepriv->scan_interval = SCAN_INTERVAL;/*  30*2 sec = 60sec */

        padapter->xmitpriv.tx_pkts = 0;
        padapter->recvpriv.rx_pkts = 0;

        pmlmepriv->LinkDetectInfo.bBusyTraffic = false;

        _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING);

        rtw_sreset_reset_value(padapter);
        pwrctrlpriv->pwr_state_check_cnts = 0;

        /* mlmeextpriv */
        padapter->mlmeextpriv.sitesurvey_res.state = SCAN_DISABLE;

        rtw_set_signal_stat_timer(&padapter->recvpriv);
        return _SUCCESS;
}

int rtw_init_drv_sw23a(struct rtw_adapter *padapter)
{
        int ret8 = _SUCCESS;

        RT_TRACE(_module_os_intfs_c_, _drv_info_, "+rtw_init_drv_sw23a\n");

        if (rtw_init_cmd_priv23a(&padapter->cmdpriv) == _FAIL) {
                RT_TRACE(_module_os_intfs_c_, _drv_err_,
                         "Can't init cmd_priv\n");
                ret8 = _FAIL;
                goto exit;
        }

        padapter->cmdpriv.padapter = padapter;

        if (rtw_init_evt_priv23a(&padapter->evtpriv) == _FAIL) {
                RT_TRACE(_module_os_intfs_c_, _drv_err_,
                         "Can't init evt_priv\n");
                ret8 = _FAIL;
                goto exit;
        }

        if (rtw_init_mlme_priv23a(padapter) == _FAIL) {
                RT_TRACE(_module_os_intfs_c_, _drv_err_,
                         "Can't init mlme_priv\n");
                ret8 = _FAIL;
                goto exit;
        }


        if (init_mlme_ext_priv23a(padapter) == _FAIL) {
                RT_TRACE(_module_os_intfs_c_, _drv_err_,
                         "Can't init mlme_ext_priv\n");
                ret8 = _FAIL;
                goto exit;
        }

        if (_rtw_init_xmit_priv23a(&padapter->xmitpriv, padapter) == _FAIL) {
                DBG_8723A("Can't _rtw_init_xmit_priv23a\n");
                ret8 = _FAIL;
                goto exit;
        }

        if (_rtw_init_recv_priv23a(&padapter->recvpriv, padapter) == _FAIL) {
                DBG_8723A("Can't _rtw_init_recv_priv23a\n");
                ret8 = _FAIL;
                goto exit;
        }

        if (_rtw_init_sta_priv23a(&padapter->stapriv) == _FAIL) {
                DBG_8723A("Can't _rtw_init_sta_priv23a\n");
                ret8 = _FAIL;
                goto exit;
        }

        padapter->stapriv.padapter = padapter;
        padapter->setband = GHZ24_50;
        rtw_init_bcmc_stainfo23a(padapter);

        rtw_init_pwrctrl_priv23a(padapter);

        ret8 = rtw_init_default_value(padapter);

        rtl8723a_init_dm_priv(padapter);

        rtw_sreset_init(padapter);

exit:

        RT_TRACE(_module_os_intfs_c_, _drv_info_, "-rtw_init_drv_sw23a\n");
        return ret8;
}

void rtw_cancel_all_timer23a(struct rtw_adapter *padapter)
{
        RT_TRACE(_module_os_intfs_c_, _drv_info_,
                 "+rtw_cancel_all_timer23a\n");

        del_timer_sync(&padapter->mlmepriv.assoc_timer);
        RT_TRACE(_module_os_intfs_c_, _drv_info_,
                 "%s:cancel association timer complete!\n", __func__);

        del_timer_sync(&padapter->mlmepriv.scan_to_timer);
        RT_TRACE(_module_os_intfs_c_, _drv_info_,
                 "%s:cancel scan_to_timer!\n", __func__);

        del_timer_sync(&padapter->mlmepriv.dynamic_chk_timer);
        RT_TRACE(_module_os_intfs_c_, _drv_info_,
                 "%s:cancel dynamic_chk_timer!\n", __func__);

        del_timer_sync(&padapter->pwrctrlpriv.pwr_state_check_timer);

        del_timer_sync(&padapter->mlmepriv.set_scan_deny_timer);
        rtw_clear_scan_deny(padapter);
        RT_TRACE(_module_os_intfs_c_, _drv_info_,
                 "%s:cancel set_scan_deny_timer!\n", __func__);

        del_timer_sync(&padapter->recvpriv.signal_stat_timer);
}

int rtw_free_drv_sw23a(struct rtw_adapter *padapter)
{
        RT_TRACE(_module_os_intfs_c_, _drv_info_, "==>rtw_free_drv_sw23a\n");

        free_mlme_ext_priv23a(&padapter->mlmeextpriv);

        rtw_free_evt_priv23a(&padapter->evtpriv);

        rtw_free_mlme_priv23a(&padapter->mlmepriv);

        _rtw_free_xmit_priv23a(&padapter->xmitpriv);

        /* will free bcmc_stainfo here */
        _rtw_free_sta_priv23a(&padapter->stapriv);

        _rtw_free_recv_priv23a(&padapter->recvpriv);

        rtw_free_pwrctrl_priv(padapter);

        kfree(padapter->HalData);
        padapter->HalData = NULL;

        RT_TRACE(_module_os_intfs_c_, _drv_info_, "-rtw_free_drv_sw23a\n");
        return _SUCCESS;
}

static int _rtw_drv_register_netdev(struct rtw_adapter *padapter, char *name)
{
        struct net_device *pnetdev = padapter->pnetdev;
        int ret = _SUCCESS;

        /* alloc netdev name */
        rtw_init_netdev23a_name23a(pnetdev, name);

        ether_addr_copy(pnetdev->dev_addr, padapter->eeprompriv.mac_addr);

        /* Tell the network stack we exist */
        if (register_netdev(pnetdev)) {
                DBG_8723A("%s(%s): Failed!\n", __func__, pnetdev->name);
                ret = _FAIL;
                goto error_register_netdev;
        }
        DBG_8723A("%s, MAC Address (if%d) = %pM\n",
                  __func__, padapter->iface_id + 1, pnetdev->dev_addr);
        return ret;

error_register_netdev:

        if (padapter->iface_id > IFACE_ID0) {
                rtw_free_drv_sw23a(padapter);

                free_netdev(pnetdev);
        }
        return ret;
}

int rtw_drv_register_netdev(struct rtw_adapter *if1)
{
        struct dvobj_priv *dvobj = if1->dvobj;
        int i, status = _SUCCESS;

        if (dvobj->iface_nums >= IFACE_ID_MAX) {
                status = _FAIL; /* -EINVAL */
                goto exit;
        }

        for (i = 0; i < dvobj->iface_nums; i++) {
                struct rtw_adapter *padapter = dvobj->padapters[i];

                if (padapter) {
                        char *name;

                        if (padapter->iface_id == IFACE_ID0)
                                name = if1->registrypriv.ifname;
                        else if (padapter->iface_id == IFACE_ID1)
                                name = if1->registrypriv.if2name;
                        else
                                name = "wlan%d";
                        status = _rtw_drv_register_netdev(padapter, name);
                        if (status != _SUCCESS)
                                break;
                }
        }

exit:
        return status;
}

int netdev_open23a(struct net_device *pnetdev)
{
        struct rtw_adapter *padapter = netdev_priv(pnetdev);
        struct pwrctrl_priv *pwrctrlpriv;
        int ret = 0;
        int status;

        RT_TRACE(_module_os_intfs_c_, _drv_info_, "+871x_drv - dev_open\n");
        DBG_8723A("+871x_drv - drv_open, bup =%d\n", padapter->bup);

        mutex_lock(&adapter_to_dvobj(padapter)->hw_init_mutex);

        pwrctrlpriv = &padapter->pwrctrlpriv;

        if (!padapter->bup) {
                padapter->bDriverStopped = false;
                padapter->bSurpriseRemoved = false;
                padapter->bCardDisableWOHSM = false;

                status = rtl8723au_hal_init(padapter);
                if (status == _FAIL) {
                        RT_TRACE(_module_os_intfs_c_, _drv_err_,
                                 "rtl871x_hal_init(): Can't init h/w!\n");
                        goto netdev_open23a_error;
                }

                DBG_8723A("MAC Address = %pM\n", pnetdev->dev_addr);

                if (init_hw_mlme_ext23a(padapter) == _FAIL) {
                        DBG_8723A("can't init mlme_ext_priv\n");
                        goto netdev_open23a_error;
                }

                rtl8723au_inirp_init(padapter);

                rtw_cfg80211_init_wiphy(padapter);

                padapter->bup = true;
        }
        padapter->net_closed = false;

        mod_timer(&padapter->mlmepriv.dynamic_chk_timer,
                  jiffies + msecs_to_jiffies(2000));

        padapter->pwrctrlpriv.bips_processing = false;
        rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);

        /* netif_carrier_on(pnetdev);call this func when
           rtw23a_joinbss_event_cb return success */
        if (!rtw_netif_queue_stopped(pnetdev))
                netif_tx_start_all_queues(pnetdev);
        else
                netif_tx_wake_all_queues(pnetdev);

        RT_TRACE(_module_os_intfs_c_, _drv_info_, "-871x_drv - dev_open\n");
        DBG_8723A("-871x_drv - drv_open, bup =%d\n", padapter->bup);
exit:
        mutex_unlock(&adapter_to_dvobj(padapter)->hw_init_mutex);
        return ret;

netdev_open23a_error:
        padapter->bup = false;

        netif_carrier_off(pnetdev);
        netif_tx_stop_all_queues(pnetdev);

        RT_TRACE(_module_os_intfs_c_, _drv_err_,
                 "-871x_drv - dev_open, fail!\n");
        DBG_8723A("-871x_drv - drv_open fail, bup =%d\n", padapter->bup);

        ret = -1;
        goto exit;
}

static int ips_netdrv_open(struct rtw_adapter *padapter)
{
        int status = _SUCCESS;

        padapter->net_closed = false;
        DBG_8723A("===> %s.........\n", __func__);

        padapter->bDriverStopped = false;
        padapter->bSurpriseRemoved = false;
        padapter->bCardDisableWOHSM = false;

        status = rtl8723au_hal_init(padapter);
        if (status == _FAIL) {
                RT_TRACE(_module_os_intfs_c_, _drv_err_,
                         "ips_netdrv_open(): Can't init h/w!\n");
                goto netdev_open23a_error;
        }

        rtl8723au_inirp_init(padapter);

        rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
        mod_timer(&padapter->mlmepriv.dynamic_chk_timer,
                  jiffies + msecs_to_jiffies(5000));

        return _SUCCESS;

netdev_open23a_error:
        /* padapter->bup = false; */
        DBG_8723A("-ips_netdrv_open - drv_open failure, bup =%d\n",
                  padapter->bup);

        return _FAIL;
}

int rtw_ips_pwr_up23a(struct rtw_adapter *padapter)
{
        int result;
        unsigned long start_time = jiffies;

        DBG_8723A("===>  rtw_ips_pwr_up23a..............\n");
        rtw_reset_drv_sw23a(padapter);

        result = ips_netdrv_open(padapter);

        DBG_8723A("<===  rtw_ips_pwr_up23a.............. in %dms\n",
                  jiffies_to_msecs(jiffies - start_time));
        return result;
}

void rtw_ips_pwr_down23a(struct rtw_adapter *padapter)
{
        unsigned long start_time = jiffies;

        DBG_8723A("===> rtw_ips_pwr_down23a...................\n");

        padapter->bCardDisableWOHSM = true;
        padapter->net_closed = true;

        rtw_ips_dev_unload23a(padapter);
        padapter->bCardDisableWOHSM = false;
        DBG_8723A("<=== rtw_ips_pwr_down23a..................... in %dms\n",
                  jiffies_to_msecs(jiffies - start_time));
}

void rtw_ips_dev_unload23a(struct rtw_adapter *padapter)
{
        rtl8723a_fifo_cleanup(padapter);

        rtl8723a_usb_intf_stop(padapter);

        /* s5. */
        if (!padapter->bSurpriseRemoved)
                rtl8723au_hal_deinit(padapter);
}

int pm_netdev_open23a(struct net_device *pnetdev, u8 bnormal)
{
        int status;

        if (bnormal)
                status = netdev_open23a(pnetdev);
        else
                status = (_SUCCESS == ips_netdrv_open(netdev_priv(pnetdev))) ?
                         (0) : (-1);

        return status;
}

static int netdev_close(struct net_device *pnetdev)
{
        struct rtw_adapter *padapter = netdev_priv(pnetdev);

        RT_TRACE(_module_os_intfs_c_, _drv_info_, "+871x_drv - drv_close\n");

        padapter->net_closed = true;

        if (padapter->pwrctrlpriv.rf_pwrstate == rf_on) {
                DBG_8723A("(2)871x_drv - drv_close, bup =%d, "
                          "hw_init_completed =%d\n", padapter->bup,
                          padapter->hw_init_completed);

                /* s1. */
                if (pnetdev) {
                        if (!rtw_netif_queue_stopped(pnetdev))
                                netif_tx_stop_all_queues(pnetdev);
                }

                /* s2. */
                LeaveAllPowerSaveMode23a(padapter);
                rtw_disassoc_cmd23a(padapter, 500, false);
                /* s2-2.  indicate disconnect to os */
                rtw_indicate_disconnect23a(padapter);
                /* s2-3. */
                rtw_free_assoc_resources23a(padapter, 1);
                /* s2-4. */
                rtw_free_network_queue23a(padapter);
        }

        rtw_scan_abort23a(padapter);

        RT_TRACE(_module_os_intfs_c_, _drv_info_, "-871x_drv - drv_close\n");
        DBG_8723A("-871x_drv - drv_close, bup =%d\n", padapter->bup);

        return 0;
}

void rtw_ndev_destructor(struct net_device *ndev)
{
        DBG_8723A("%s(%s)\n", __func__, ndev->name);
        kfree(ndev->ieee80211_ptr);
        free_netdev(ndev);
}

void _rtw_init_queue23a(struct rtw_queue *pqueue)
{
        INIT_LIST_HEAD(&pqueue->queue);
        spin_lock_init(&pqueue->lock);
}