/**
 * @file gpioPin.c
 *
 * This is sample Legato CF3 GPIO app by using le_gpio.api.
 *
 * <HR>
 *
 * Copyright (C) Sierra Wireless, Inc. Use of this work is subject to license.
 */

/* Legato Framework */
#include "legato.h"
#include "interfaces.h"

static int Pin38 = 38;

static void Pin38ChangeCallback(bool state, void *ctx){
    LE_INFO("State change %s", state?"TRUE":"FALSE");

    LE_INFO("Context pointer came back as %d", *(int *)ctx);
}


//-------------------------------------------------------------------------------------------------
/**
 *  Pin-per-service GPIO pin38 as example
 */
// -------------------------------------------------------------------------------------------------
static void Pin38GpioSignal()
{
    bool value = false;
    le_gpioPin38_SetInput(LE_GPIOPIN38_ACTIVE_HIGH);
    value = le_gpioPin38_Read();
    LE_INFO("Pin38 read active: %d", value);

    le_gpioPin38_AddChangeEventHandler(LE_GPIOPIN38_EDGE_RISING, Pin38ChangeCallback, &Pin38, 0);

    // Change the edge setting
    le_gpioPin38_SetEdgeSense(LE_GPIOPIN38_EDGE_BOTH);
    le_gpioPin38_DisableEdgeSense();
    le_gpioPin38_SetEdgeSense(LE_GPIOPIN38_EDGE_BOTH);

    // Remove the handler
    //le_gpioPin38_RemoveChangeEventHandler(ref);
}

static void PinsReadConfig()
{

    le_gpioPin38_Edge_t edge = le_gpioPin38_GetEdgeSense();
    if (edge == LE_GPIOPIN38_EDGE_FALLING)
    {
        LE_INFO("Pin 38 edge sense = falling");
    }
    else if (edge == LE_GPIOPIN38_EDGE_RISING)
    {
        LE_INFO("Pin 38 edge sense = rising");
    }
    else if (edge == LE_GPIOPIN38_EDGE_BOTH)
    {
        LE_INFO("Pin 38 edge sense = both");
    }
    else if (edge == LE_GPIOPIN38_EDGE_NONE)
    {
        LE_INFO("Pin 38 edge sense = none");
    }

    LE_INFO("Pin 38 is output = %s", le_gpioPin38_IsOutput()?"true":"false");

    le_gpioPin38_PullUpDown_t pud = le_gpioPin38_GetPullUpDown();
    if (pud == LE_GPIOPIN38_PULL_DOWN)
    {
        LE_INFO("Pin 38 pull up/down = down");
    }
    else if (pud == LE_GPIOPIN38_PULL_UP)
    {
        LE_INFO("Pin 38 pull up/down = up");
    }
    else
    {
        LE_INFO("Pin 38 pull up/down = none");
    }
}


COMPONENT_INIT
{
    LE_INFO("This is sample gpioctl Legato CF3 GPIO app by using le_gpio.api\n");

    Pin38GpioSignal();

    PinsReadConfig();

}