// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 ******************************************************************************/
#define _OS_INTFS_C_

#include <osdep_service.h>
#include <osdep_intf.h>
#include <drv_types.h>
#include <xmit_osdep.h>
#include <recv_osdep.h>
#include <hal_intf.h>
#include <rtw_ioctl.h>
#include <rtl8188e_hal.h>

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Realtek Wireless Lan Driver");
MODULE_AUTHOR("Realtek Semiconductor Corp.");
MODULE_VERSION(DRIVERVERSION);
MODULE_FIRMWARE("rtlwifi/rtl8188eufw.bin");

#define RTW_NOTCH_FILTER 0 /* 0:Disable, 1:Enable, */

/* module param defaults */
/* Ndis802_11Infrastructure; infra, ad-hoc, auto */
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_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_debug = 1;

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 :disable, 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 */

static int rtw_wifi_spec;
static int rtw_channel_plan = RT_CHANNEL_DOMAIN_MAX;

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

/* 0: decide by efuse
 * 1: for 88EE, 1Tx and 1RxCG are diversity (2 Ant with SPDT)
 * 2: for 88EE, 1Tx and 2Rx are diversity (2 Ant, Tx and RxCG are both on aux
 *    port, RxCS is on main port)
 * 3: for 88EE, 1Tx and 1RxCG are fixed (1Ant, Tx and RxCG are both on aux port)
 */
static int rtw_antdiv_type;

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

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

int rtw_mc2u_disable;

static int rtw_80211d;

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");

/* temp mac address if users want to use instead of the mac address in Efuse */
char *rtw_initmac;

module_param(rtw_initmac, charp, 0644);
module_param(rtw_channel_plan, 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_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_power_mgnt, int, 0644);
module_param(rtw_smart_ps, int, 0644);
module_param(rtw_wifi_spec, int, 0644);
module_param(rtw_antdiv_cfg, int, 0644);
module_param(rtw_antdiv_type, int, 0644);
module_param(rtw_enusbss, int, 0644);
module_param(rtw_hwpdn_mode, 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");

static int rtw_fw_iol = 1;/*  0:Disable, 1:enable, 2:by usb speed */
module_param(rtw_fw_iol, int, 0644);
MODULE_PARM_DESC(rtw_fw_iol, "FW IOL");

module_param(rtw_mc2u_disable, int, 0644);

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

static uint rtw_notch_filter = 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 bool rtw_monitor_enable;
module_param_named(monitor_enable, rtw_monitor_enable, bool, 0444);
MODULE_PARM_DESC(monitor_enable, "Enable monitor interface (default: false)");

static int netdev_close(struct net_device *pnetdev);

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

        GlobalDebugLevel = rtw_debug;

        memcpy(registry_par->ssid.ssid, "ANY", 3);
        registry_par->ssid.ssid_length = 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->smart_ps =  (u8)rtw_smart_ps;
        registry_par->power_mgnt = (u8)rtw_power_mgnt;
        registry_par->ips_mode = (u8)rtw_ips_mode;
        registry_par->mp_mode = 0;
        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->wifi_spec = (u8)rtw_wifi_spec;
        registry_par->channel_plan = (u8)rtw_channel_plan;
        registry_par->accept_addba_req = true;
        registry_par->antdiv_cfg = (u8)rtw_antdiv_cfg;
        registry_par->antdiv_type = (u8)rtw_antdiv_type;
        registry_par->hwpdn_mode = (u8)rtw_hwpdn_mode;

        registry_par->max_roaming_times = (u8)rtw_max_roaming_times;

        registry_par->fw_iol = rtw_fw_iol;

        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->monitor_enable = rtw_monitor_enable;
}

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

        if (!padapter->bup)
                memcpy(padapter->eeprompriv.mac_addr, addr->sa_data, ETH_ALEN);

        return 0;
}

static struct net_device_stats *rtw_net_get_stats(struct net_device *pnetdev)
{
        struct adapter *padapter = (struct adapter *)rtw_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 unsigned int rtw_classify8021d(struct sk_buff *skb)
{
        unsigned int 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,
                            struct net_device *sb_dev)
{
        struct adapter *padapter = rtw_netdev_priv(dev);
        struct mlme_priv *pmlmepriv = &padapter->mlmepriv;

        skb->priority = rtw_classify8021d(skb);

        if (pmlmepriv->acm_mask != 0)
                skb->priority = qos_acm(pmlmepriv->acm_mask, skb->priority);

        return rtw_1d_to_queue[skb->priority];
}

u16 rtw_recv_select_queue(struct sk_buff *skb)
{
        struct iphdr *piphdr;
        unsigned int dscp;
        __be16 eth_type;
        u32 priority;
        u8 *pdata = skb->data;

        memcpy(&eth_type, pdata + (ETH_ALEN << 1), 2);

        switch (eth_type) {
        case htons(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_open,
        .ndo_stop = netdev_close,
        .ndo_start_xmit = rtw_xmit_entry,
        .ndo_select_queue = rtw_select_queue,
        .ndo_set_mac_address = rtw_net_set_mac_address,
        .ndo_get_stats = rtw_net_get_stats,
        .ndo_do_ioctl = rtw_ioctl,
};

int rtw_init_netdev_name(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_netdev(struct adapter *old_padapter)
{
        struct adapter *padapter;
        struct net_device *pnetdev = NULL;

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

        if (old_padapter)
                pnetdev = rtw_alloc_etherdev_with_old_priv((void *)old_padapter);

        if (!pnetdev)
                return NULL;

        pnetdev->dev.type = &wlan_type;
        padapter = rtw_netdev_priv(pnetdev);
        padapter->pnetdev = pnetdev;
        DBG_88E("register rtw_netdev_ops to netdev_ops\n");
        pnetdev->netdev_ops = &rtw_netdev_ops;
        pnetdev->watchdog_timeo = HZ * 3; /* 3 second timeout */
        pnetdev->wireless_handlers = (struct iw_handler_def *)&rtw_handlers_def;

        loadparam(padapter, pnetdev);

        return pnetdev;
}

static int rtw_start_drv_threads(struct adapter *padapter)
{
        int err = 0;

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

        padapter->cmdThread = kthread_run(rtw_cmd_thread, padapter,
                                          "RTW_CMD_THREAD");
        if (IS_ERR(padapter->cmdThread))
                err = PTR_ERR(padapter->cmdThread);
        else
                /* wait for cmd_thread to run */
                wait_for_completion_interruptible(&padapter->cmdpriv.terminate_cmdthread_comp);

        return err;
}

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

        /* Below is to terminate rtw_cmd_thread & event_thread... */
        complete(&padapter->cmdpriv.cmd_queue_comp);
        if (padapter->cmdThread)
                wait_for_completion_interruptible(&padapter->cmdpriv.terminate_cmdthread_comp);
}

static u8 rtw_init_default_value(struct 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_setting = pregistrypriv->vrtl_carrier_sense;
        pxmitpriv->vcs = pregistrypriv->vcs_type;
        pxmitpriv->vcs_type = pregistrypriv->vcs_type;
        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 = _FAIL;
        psecuritypriv->dot11AuthAlgrthm = dot11AuthAlgrthm_Open;
        psecuritypriv->dot11PrivacyAlgrthm = _NO_PRIVACY_;
        psecuritypriv->dot11PrivacyKeyIndex = 0;
        psecuritypriv->dot118021XGrpPrivacy = _NO_PRIVACY_;
        psecuritypriv->dot118021XGrpKeyid = 1;
        psecuritypriv->ndisauthtype = Ndis802_11AuthModeOpen;
        psecuritypriv->ndisencryptstatus = Ndis802_11WEPDisabled;

        /* registry_priv */
        rtw_init_registrypriv_dev_network(padapter);
        rtw_update_registrypriv_dev_network(padapter);

        /* hal_priv */
        rtw_hal_def_value_init(padapter);

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

u8 rtw_reset_drv_sw(struct adapter *padapter)
{
        struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
        struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;

        /* hal_priv */
        rtw_hal_def_value_init(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_hal_sreset_init(padapter);
        pwrctrlpriv->pwr_state_check_cnts = 0;

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

        rtw_set_signal_stat_timer(&padapter->recvpriv);

        return _SUCCESS;
}

u8 rtw_init_drv_sw(struct adapter *padapter)
{
        u8 ret8 = _SUCCESS;

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

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

        padapter->cmdpriv.padapter = padapter;

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

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

        if (_rtw_init_xmit_priv(&padapter->xmitpriv, padapter) == _FAIL) {
                DBG_88E("Can't _rtw_init_xmit_priv\n");
                ret8 = _FAIL;
                goto exit;
        }

        if (_rtw_init_recv_priv(&padapter->recvpriv, padapter) == _FAIL) {
                DBG_88E("Can't _rtw_init_recv_priv\n");
                ret8 = _FAIL;
                goto exit;
        }

        if (_rtw_init_sta_priv(&padapter->stapriv) == _FAIL) {
                DBG_88E("Can't _rtw_init_sta_priv\n");
                ret8 = _FAIL;
                goto exit;
        }

        padapter->stapriv.padapter = padapter;

        rtw_init_bcmc_stainfo(padapter);

        rtw_init_pwrctrl_priv(padapter);

        ret8 = rtw_init_default_value(padapter);

        rtw_hal_dm_init(padapter);
        rtw_hal_sw_led_init(padapter);

        rtw_hal_sreset_init(padapter);

exit:
        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("-rtw_init_drv_sw\n"));

        return ret8;
}

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

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

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

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

        /*  cancel sw led timer */
        rtw_hal_sw_led_deinit(padapter);
        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("rtw_cancel_all_timer:cancel DeInitSwLeds!\n"));

        del_timer_sync(&padapter->pwrctrlpriv.pwr_state_check_timer);

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

u8 rtw_free_drv_sw(struct adapter *padapter)
{
        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("==>rtw_free_drv_sw"));

        free_mlme_ext_priv(&padapter->mlmeextpriv);

        rtw_free_mlme_priv(&padapter->mlmepriv);
        _rtw_free_xmit_priv(&padapter->xmitpriv);

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

        _rtw_free_recv_priv(&padapter->recvpriv);

        rtw_hal_free_data(padapter);

        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("<== rtw_free_drv_sw\n"));

        mutex_destroy(&padapter->hw_init_mutex);

        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("-rtw_free_drv_sw\n"));

        return _SUCCESS;
}

static int _netdev_open(struct net_device *pnetdev)
{
        uint status;
        int err;
        struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev);
        struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;

        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+88eu_drv - dev_open\n"));
        DBG_88E("+88eu_drv - drv_open, bup =%d\n", padapter->bup);

        if (pwrctrlpriv->ps_flag) {
                padapter->net_closed = false;
                goto netdev_open_normal_process;
        }

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

                status = rtw_hal_init(padapter);
                if (status == _FAIL) {
                        RT_TRACE(_module_os_intfs_c_, _drv_err_, ("rtl88eu_hal_init(): Can't init h/w!\n"));
                        goto netdev_open_error;
                }

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

                err = rtw_start_drv_threads(padapter);
                if (err) {
                        pr_info("Initialize driver software resource Failed!\n");
                        goto netdev_open_error;
                }

                if (init_hw_mlme_ext(padapter) == _FAIL) {
                        pr_info("can't init mlme_ext_priv\n");
                        goto netdev_open_error;
                }
                rtw_hal_inirp_init(padapter);

                led_control_8188eu(padapter, LED_CTL_NO_LINK);

                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);

        if (!rtw_netif_queue_stopped(pnetdev))
                netif_tx_start_all_queues(pnetdev);
        else
                netif_tx_wake_all_queues(pnetdev);

netdev_open_normal_process:
        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("-88eu_drv - dev_open\n"));
        DBG_88E("-88eu_drv - drv_open, bup =%d\n", padapter->bup);
        return 0;

netdev_open_error:
        padapter->bup = false;
        netif_carrier_off(pnetdev);
        netif_tx_stop_all_queues(pnetdev);
        RT_TRACE(_module_os_intfs_c_, _drv_err_, ("-88eu_drv - dev_open, fail!\n"));
        DBG_88E("-88eu_drv - drv_open fail, bup =%d\n", padapter->bup);
        return -1;
}

int netdev_open(struct net_device *pnetdev)
{
        int ret;
        struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev);

        if (mutex_lock_interruptible(&padapter->hw_init_mutex))
                return -ERESTARTSYS;
        ret = _netdev_open(pnetdev);
        mutex_unlock(&padapter->hw_init_mutex);
        return ret;
}

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

        padapter->net_closed = false;
        DBG_88E("===> %s.........\n", __func__);

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

        status = rtw_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_open_error;
        }

        rtw_hal_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_open_error:
        DBG_88E("-ips_netdrv_open - drv_open failure, bup =%d\n", padapter->bup);

        return _FAIL;
}

int rtw_ips_pwr_up(struct adapter *padapter)
{
        int result;
        unsigned long start_time = jiffies;

        DBG_88E("===>  rtw_ips_pwr_up..............\n");
        rtw_reset_drv_sw(padapter);

        result = ips_netdrv_open(padapter);

        led_control_8188eu(padapter, LED_CTL_NO_LINK);

        DBG_88E("<===  rtw_ips_pwr_up.............. in %dms\n",
                jiffies_to_msecs(jiffies - start_time));
        return result;
}

void rtw_ips_pwr_down(struct adapter *padapter)
{
        unsigned long start_time = jiffies;

        DBG_88E("===> rtw_ips_pwr_down...................\n");

        padapter->net_closed = true;

        led_control_8188eu(padapter, LED_CTL_POWER_OFF);

        rtw_ips_dev_unload(padapter);
        DBG_88E("<=== rtw_ips_pwr_down..................... in %dms\n",
                jiffies_to_msecs(jiffies - start_time));
}

void rtw_ips_dev_unload(struct adapter *padapter)
{
        DBG_88E("====> %s...\n", __func__);

        rtw_hal_set_hwreg(padapter, HW_VAR_FIFO_CLEARN_UP, NULL);

        usb_intf_stop(padapter);

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

static int netdev_close(struct net_device *pnetdev)
{
        struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev);

        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+88eu_drv - drv_close\n"));

        if (padapter->pwrctrlpriv.bInternalAutoSuspend) {
                if (padapter->pwrctrlpriv.rf_pwrstate == rf_off)
                        padapter->pwrctrlpriv.ps_flag = true;
        }
        padapter->net_closed = true;

        if (padapter->pwrctrlpriv.rf_pwrstate == rf_on) {
                DBG_88E("(2)88eu_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. */
                LeaveAllPowerSaveMode(padapter);
                rtw_disassoc_cmd(padapter, 500, false);
                /* s2-2.  indicate disconnect to os */
                rtw_indicate_disconnect(padapter);
                /* s2-3. */
                rtw_free_assoc_resources(padapter);
                /* s2-4. */
                rtw_free_network_queue(padapter, true);
                /*  Close LED */
                led_control_8188eu(padapter, LED_CTL_POWER_OFF);
        }

        RT_TRACE(_module_os_intfs_c_, _drv_info_, ("-88eu_drv - drv_close\n"));
        DBG_88E("-88eu_drv - drv_close, bup =%d\n", padapter->bup);
        return 0;
}