/****************************************************************************
*   Copyright: (C)2018 Î人ÁèÔÆÎïÍøÖÇ¿ÆʵÑéÊÒ www.iot-yun.com
*      Author: GuoWenxue<guowenxue@gmail.com> QQ: 281143292
* Description: STM32L151C8T6 CubeMX ¿ª·¢°å LED²Ù×÷º¯Êý
* 
*   ChangeLog:
*        °æ±¾ºÅ     ÈÕÆÚ       ×÷Õß      ˵Ã÷
*        V1.0.0  2018.11.05  GuoWenxue   ·¢²¼¸Ã°æ±¾
****************************************************************************/

#include "stm32l1xx.h"
#include "stm32_led.h"

/* STM32L151C8T6 CubeMX ¿ª·¢°åÖ»ÓÐÒ»¸öGPIO¿ØÖÆµÄ Green LED£¬ ºìÉ«µÄLEDÊǵçԴָʾµÆ */
led_gpio_t	leds_gpio[MAX_LED] =
{
		{LED1, GPIOB, GPIO_Pin_1}, /* LED_Green ÓõÄGPB1 */
};

/* º¯Êý˵Ã÷:  ÅäÖà LED GPIO¿ÚºÍʱÖÓ£»
 * ²ÎÊý˵Ã÷:  ÎÞ
 * ·µ»ØÖµ:    ÎÞ
 */
void init_led_gpio(void)
{
	int                i;
	GPIO_InitTypeDef   GPIO_InitStructure;

	/* ʹÄÜPB×é GPIOµÄʱÖÓ */
	RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
	
	/*ÉèÖÃ PB1(LED1)  */
	for(i=0; i<MAX_LED; i++)
	{
		GPIO_InitStructure.GPIO_Pin = leds_gpio[i].pin;	
		GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
		GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
		GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
		GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;

		GPIO_Init(leds_gpio[i].group, &GPIO_InitStructure);						
  }
}


/* º¯Êý˵Ã÷:  µãÁÁ»òÃðµôÏàÓ¦LED
 * ²ÎÊý˵Ã÷:  which: Òª²Ù×÷ÄĸöLED,ÆäÖµÓ¦¸ÃΪ LED1¡¢LED2 »ò LED3£
 *            cmd: ÒªÁÁ»¹ÊÇÃð, ÆäÖµ¶ÔӦΪ ON »ò OFF
 * ·µ»ØÖµ:    ÎÞ
 */
void turn_led(int which, int cmd)
{
   if(which<0 || which> MAX_LED )
		 return;
	 
	 if(OFF == cmd)
		 GPIO_SetBits(leds_gpio[which].group, leds_gpio[which].pin); 
	 else
		 GPIO_ResetBits(leds_gpio[which].group, leds_gpio[which].pin);	 
}