/*********************************************************************************
 *      Copyright:  (C) 2018 LingYun IoT System Studio
 *                  All rights reserved.
 *
 *       Filename:  led.h
 *    Description:  This file is used to control RGB 3-colours LED
 *
 *     pi@raspberrypi:~ $ gpio readall show BCM and wPi pinmap  
 *
 *                 LED      BCM           wPi 
 *                  B ---- GPIO.13  ---- GPIO.23
 *                  R ---- GPIO.19  ---- GPIO.24    
 *                  G ---- GPIO.26  ---- GPIO.25
 *                  I ---- GND      ----
 *                 
 *        Version:  1.0.0(2018/10/14)
 *         Author:  Guo Wenxue <guowenxue@gmail.com>
 *      ChangeLog:  1, Release initial version on "2018/10/14 12:13:26"
 *                 
 ********************************************************************************/

#ifndef __LED_H
#define __LED_H

#define OFF   0
#define ON    1

/* Three LEDs code */
enum
{
	LED_R = 0,
	LED_G,
	LED_B,
	LED_MAX,
};

/* 3 LEDs WiringPi GPIO port */
                               
                              /* LED_R  LED_G   LED_B */
static int led_gpio[LED_MAX]= {   24,    25,     23  };


void init_led(void);
int turn_led(int which, int cmd);


#endif