/*
 * Copyright (c) 2014 Amlogic, Inc. All rights reserved.
 *
 * This source code is subject to the terms and conditions defined in the
 * file 'LICENSE' which is part of this source code package.
 *
 * Description: c++ file
 */
#define LOG_MODULE_TAG "TV"
#define LOG_CLASS_TAG "CVrr"

#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include "CTvLog.h"
#include <fcntl.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <stdarg.h>
#include <string.h>

#include "CVrr.h"


CVrr *CVrr::mInstance;

CVrr *CVrr::getInstance()
{
    if (NULL == mInstance) {
        mInstance = new CVrr();
    }

    return mInstance;
}

CVrr::CVrr()
{
    mVrrDeviceId = VrrOpenModule();
}

CVrr::~CVrr()
{
    VrrCloseModule();
}

int CVrr::VrrOpenModule()
{
    int fd = open ( CS_VRR_DEV_PATH, O_RDWR );
    if ( fd < 0 ) {
        LOGE("Open %s error(%s)!\n", CS_VRR_DEV_PATH, strerror ( errno ));
        return -1;
    }

    return fd;
}

int CVrr::VrrCloseModule()
{
    if ( mVrrDeviceId != -1 ) {
        close ( mVrrDeviceId );
        mVrrDeviceId = -1;
    }

    return 0;
}

int CVrr::VrrDeviceIOCtl(int request, ...)
{
    int ret = -1;
    va_list ap;
    void *arg;
    va_start ( ap, request );
    arg = va_arg ( ap, void *);
    va_end ( ap );

    ret = ioctl(mVrrDeviceId, request, arg);

    return ret;
}

bool CVrr::GetVrrSupport()
{
    unsigned int isSupport = 0;
    VrrDeviceIOCtl(VRR_IOC_CMD_GET_SUPPORT, &isSupport);
    LOGD("%s, support[%s] !\n", __FUNCTION__, isSupport ? "true":"false");
    return isSupport ? true:false;
}