/**************************************************************************
*
* Copyright (C) 2011 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*********************************************************************/
#include <stdint.h>
#include "hardware.h"
#include "timer.h"
#include "led.h"

static struct itimer Off_Delay_Timer[MAX_LEDS];
static bool LED_Status[MAX_LEDS];

#define LED_OFF             (0)


/*************************************************************************
* Description: Turn on an LED
* Returns: none
* Notes: none
*************************************************************************/
void led_on(
    uint8_t index)
{
    switch (index) {
        case 4:
            R_IO_PORT_Write(LED4, LED_ON);
            break;
        case 5:
            R_IO_PORT_Write(LED5, LED_ON);
            break;
        case 6:
            R_IO_PORT_Write(LED6, LED_ON);
            break;
        case 7:
            R_IO_PORT_Write(LED7, LED_ON);
            break;
        case 8:
            R_IO_PORT_Write(LED8, LED_ON);
            break;
        case 9:
            R_IO_PORT_Write(LED9, LED_ON);
            break;
        case 10:
            R_IO_PORT_Write(LED10, LED_ON);
            break;
        case 11:
            R_IO_PORT_Write(LED11, LED_ON);
            break;
        case 12:
            R_IO_PORT_Write(LED12, LED_ON);
            break;
        case 13:
            R_IO_PORT_Write(LED13, LED_ON);
            break;
        case 14:
            R_IO_PORT_Write(LED14, LED_ON);
            break;
        case 15:
            R_IO_PORT_Write(LED15, LED_ON);
            break;
        default:
            break;
    }
    if (index < MAX_LEDS) {
        LED_Status[index] = LED_ON;
        timer_interval_no_expire(&Off_Delay_Timer[index]);
    }
}

/*************************************************************************
* Description: Turn off an LED
* Returns: none
* Notes: none
*************************************************************************/
void led_off(
    uint8_t index)
{
    switch (index) {
        case 4:
            R_IO_PORT_Write(LED4, LED_OFF);
            break;
        case 5:
            R_IO_PORT_Write(LED5, LED_OFF);
            break;
        case 6:
            R_IO_PORT_Write(LED6, LED_OFF);
            break;
        case 7:
            R_IO_PORT_Write(LED7, LED_OFF);
            break;
        case 8:
            R_IO_PORT_Write(LED8, LED_OFF);
            break;
        case 9:
            R_IO_PORT_Write(LED9, LED_OFF);
            break;
        case 10:
            R_IO_PORT_Write(LED10, LED_OFF);
            break;
        case 11:
            R_IO_PORT_Write(LED11, LED_OFF);
            break;
        case 12:
            R_IO_PORT_Write(LED12, LED_OFF);
            break;
        case 13:
            R_IO_PORT_Write(LED13, LED_OFF);
            break;
        case 14:
            R_IO_PORT_Write(LED14, LED_OFF);
            break;
        case 15:
            R_IO_PORT_Write(LED15, LED_OFF);
            break;
        default:
            break;
    }
    if (index < MAX_LEDS) {
        LED_Status[index] = LED_OFF;
        timer_interval_no_expire(&Off_Delay_Timer[index]);
    }
}

/*************************************************************************
* Description: Get the state of the LED
* Returns: true if on, false if off.
* Notes: none
*************************************************************************/
bool led_state(
    uint8_t index)
{
    bool state = false;

    if (index < MAX_LEDS) {
        state = LED_Status[index];
    }

    return state;
}

/*************************************************************************
* Description: Toggle the state of the setup LED
* Returns: none
* Notes: none
*************************************************************************/
void led_toggle(
    uint8_t index)
{
    if (led_state(index)) {
        led_off(index);
    } else {
        led_on(index);
    }
}

/*************************************************************************
* Description: Delay before going off to give minimum brightness.
* Returns: none
* Notes: none
*************************************************************************/
void led_off_delay(
    uint8_t index,
    uint32_t delay_ms)
{
    if (index < MAX_LEDS) {
        timer_interval_start(&Off_Delay_Timer[index], delay_ms);
    }
}

/*************************************************************************
* Description: Turn on, and delay before going off.
* Returns: none
* Notes: none
*************************************************************************/
void led_on_interval(
    uint8_t index,
    uint16_t interval_ms)
{
    if (index < MAX_LEDS) {
        led_on(index);
        timer_interval_start(&Off_Delay_Timer[index], interval_ms);
    }
}

/*************************************************************************
* Description: Task for blinking LED
* Returns: none
* Notes: none
*************************************************************************/
void led_task(
    void)
{
    uint8_t i;  /* loop counter */

    for (i = 0; i < MAX_LEDS; i++) {
        if (timer_interval_expired(&Off_Delay_Timer[i])) {
            timer_interval_no_expire(&Off_Delay_Timer[i]);
            led_off(i);
        }
    }
}

/*************************************************************************
* Description: Initialize the LED hardware
* Returns: none
* Notes: none
*************************************************************************/
void led_init(
    void)
{
    unsigned i = 0;

    for (i = 0; i < MAX_LEDS; i++) {
        led_on_interval(i, 500);
    }
}