#include "gpio_driver.h"



Gpio_Driver::Gpio_Driver(const char *dev)
{
#if (PLATFORM_USED==PLATFORM_ARM)
    /* open gpio */
    fd = open(dev, 0);
    if (fd < 0) {
        qDebug("ERROR: open %s ret=%d\n", dev, fd);
    }
#endif
}

int Gpio_Driver::Gpio_Init(int *lineoff,int linesnum)
{
    if(lineoff==0 || linesnum==0){
        qDebug("invalid gpio param.\n");

        return -1;
    }

#if (PLATFORM_USED==PLATFORM_ARM)

    for(int i=0;i<linesnum;i++){
        req.lineoffsets[i] = lineoff[i];
    }
    req.lines = linesnum;
    req.flags = GPIOHANDLE_REQUEST_OUTPUT;
    strcpy(req.consumer_label, "RS T_m");
    int lhfd = ioctl(fd, GPIO_GET_LINEHANDLE_IOCTL, &req);

    if (lhfd < 0) {
        qDebug("ERROR get line handle lhdf=%d \n", lhfd);
        return -1;
    }

#endif

    return 0;
}

int Gpio_Driver::Gpio_Init_In(int *lineoff,int linesnum)
{
    if(lineoff==0 || linesnum==0){
        qDebug("invalid gpio param.\n");

        return -1;
    }

#if (PLATFORM_USED==PLATFORM_ARM)

    for(int i=0;i<linesnum;i++){
        req_in.lineoffsets[i] = lineoff[i];
    }
    req_in.lines = linesnum;
    req_in.flags = GPIOHANDLE_REQUEST_INPUT;
    strcpy(req_in.consumer_label, "RS T_m");
    int lhfd = ioctl(fd, GPIO_GET_LINEHANDLE_IOCTL, &req_in);

    if (lhfd < 0) {
        qDebug("ERROR get line handle lhdf=%d \n", lhfd);
        return -1;
    }

#endif

    return 0;
}

int Gpio_Driver::Gpio_SetLevel(int index, bool isHigh)
{
#if (PLATFORM_USED==PLATFORM_ARM)

    int ret;

    if(isHigh)
        data.values[index] = 1;
    else
        data.values[index] = 0;

    ret = ioctl (req.fd, GPIOHANDLE_SET_LINE_VALUES_IOCTL, &data);
    if (ret < 0){
        qDebug("ERROR set line value ret=%d ", ret);
        return -1;
    }
#endif

    return 0;
}

int Gpio_Driver::Gpio_GetLevel(int index,int *level)
{
#if (PLATFORM_USED==PLATFORM_ARM)
    int ret;

    ret = ioctl (req_in.fd, GPIOHANDLE_GET_LINE_VALUES_IOCTL, &data_in);
    if (ret < 0){
        qDebug("ERROR get line value ret=%d ", ret);
        return -1;
    }

    *level = data_in.values[index];

#endif

    return 0;
}