/****************************************************************************
*   Copyright: (C)2018 Î人ÁèÔÆÎïÍøÖÇ¿ÆʵÑéÊÒ www.iot-yun.com
*      Author: GuoWenxue<guowenxue@gmail.com> QQ: 281143292
* Description: ·Ü¶·STM32v5¿ª·¢°å °´¼üÖжϳõʼ»¯ºÍ´¦Àíº¯Êý 
* 
*   ChangeLog:
*        °æ±¾ºÅ     ÈÕÆÚ       ×÷Õß      ˵Ã÷
*        V1.0.0  2018.05.10  GuoWenxue   ·¢²¼¸Ã°æ±¾
****************************************************************************/

#include "stm32f10x.h"
#include "stm32v5_led.h"

void init_key1_gpio_interrupt(void);
void init_key2_gpio_interrupt(void);
void init_key3_gpio_interrupt(void);



/* º¯Êý˵Ã÷:  ÅäÖð´¼üµÄ GPIO¿Ú¡¢Ê±ÖÓºÍÖжÏ
 * ²ÎÊý˵Ã÷:  ÎÞ
 * ·µ»ØÖµ:    ÎÞ
 */
void init_keys_interrupt(void)
{
	
	/* ʹÄÜGPIO PC×éµÄʱÖÓ */
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC |RCC_APB2Periph_AFIO, ENABLE); 	
	
	init_key1_gpio_interrupt();
	init_key2_gpio_interrupt();
	init_key3_gpio_interrupt();
}

/* Ïû³ý°´¼ü¶¶¶¯ÑÓʱº¯Êý */
static __inline void key_dejitter_delay(void)
{
	uint32_t       times=6000;  
	while( times--) ;
}

/* Key1(PC5)µÄÖжϷþÎñ´¦Àí³ÌÐò, ÖжϲúÉúºó startup_stm32f10x_hd.s ÖеÄÖжÏÏòÁ¿±í»áÖ¸Ïò¸Ãº¯Êý */
void EXTI9_5_IRQHandler(void)
{
	static uint8_t        led1_status = OFF;
	
	if(EXTI_GetITStatus(EXTI_Line5) != RESET)
	{
		/* ÑÓʱһ¶Îʱ¼ä²é¿´GPIOµÄ״̬£¬Èç¹û»¹Êǵ͵çƽ˵Ã÷ÊÇÓÐЧ°´¼ü */
		key_dejitter_delay();
		if( Bit_RESET == GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_5) )
		{
			led1_status ^= 1;	
			turn_led(LED1, led1_status);
		}
		EXTI_ClearITPendingBit(EXTI_Line5);
  }
}

/* Key2(PC2)µÄÖжϷþÎñ´¦Àí³ÌÐò, ÖжϲúÉúºó startup_stm32f10x_hd.s ÖеÄÖжÏÏòÁ¿±í»áÖ¸Ïò¸Ãº¯Êý */
void EXTI2_IRQHandler(void)
{
	static uint8_t        led2_status = OFF;
	
	if(EXTI_GetITStatus(EXTI_Line2) != RESET)
	{
		/* ÑÓʱһ¶Îʱ¼ä²é¿´GPIOµÄ״̬£¬Èç¹û»¹Êǵ͵çƽ˵Ã÷ÊÇÓÐЧ°´¼ü */
		key_dejitter_delay();		
		if( Bit_RESET == GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_2) )
		{			
			led2_status ^= 1;		
			turn_led(LED2, led2_status);
		}
		EXTI_ClearITPendingBit(EXTI_Line2);
  }
}

/* Key3(PC3)µÄÖжϷþÎñ´¦Àí³ÌÐò, ÖжϲúÉúºó startup_stm32f10x_hd.s ÖеÄÖжÏÏòÁ¿±í»áÖ¸Ïò¸Ãº¯Êý */
void EXTI3_IRQHandler(void)
{
	static uint8_t        led3_status = OFF;
	
	if(EXTI_GetITStatus(EXTI_Line3) != RESET)
	{
		/* ÑÓʱһ¶Îʱ¼ä²é¿´GPIOµÄ״̬£¬Èç¹û»¹Êǵ͵çƽ˵Ã÷ÊÇÓÐЧ°´¼ü */
		key_dejitter_delay();		
		if( Bit_RESET == GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_3) )
		{
			led3_status ^= 1;
			turn_led(LED3, led3_status);
		}
		EXTI_ClearITPendingBit(EXTI_Line3);
  }
}


/* Key1 Á¬ÔÚ PC5ÉÏ, ½«PC5ÉèÖÃΪÖжÏϽµÑØ´¥·¢Ä£Ê½ */
void init_key1_gpio_interrupt(void) 
{ 
	GPIO_InitTypeDef GPIO_InitStructure; 
	EXTI_InitTypeDef EXTI_InitStructure; 
	NVIC_InitTypeDef NVIC_InitStructure; 
	
	/* ³õʼ»¯PC5ΪÄÚ²¿ÉÏÀ­ÊäÈëģʽ, ÕâÑù°´¼üûÓа´ÏµÄʱºòΪ¸ßµçƽ, Èç¹û°´¼ü°´ÏÂʱ±à³ÌµÍµçƽ */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;	
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; 
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 
  GPIO_Init(GPIOC, &GPIO_InitStructure); 
	
	/* ³õʼ»¯PC5ΪϽµÑØ´¥·¢ÖÐ¶Ï */
	GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource5); 
  EXTI_InitStructure.EXTI_Line = EXTI_Line5; 
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; 
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; 
  EXTI_InitStructure.EXTI_LineCmd = ENABLE; 
  EXTI_Init(&EXTI_InitStructure);	
	
	/* ³õʼ»¯ÖжϵÄ×ÓÓÅÏȼ¶Îª 1 */
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); 
  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;	
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; 
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;	
  NVIC_Init(&NVIC_InitStructure); 
} 

/* Key2 Á¬ÔÚ PC2ÉÏ, ½«PC2ÉèÖÃΪÖжÏϽµÑØ´¥·¢Ä£Ê½ */
void init_key2_gpio_interrupt(void) 
{ 
	GPIO_InitTypeDef GPIO_InitStructure; 
	EXTI_InitTypeDef EXTI_InitStructure; 
	NVIC_InitTypeDef NVIC_InitStructure; 
	
	/* ³õʼ»¯PC2ΪÄÚ²¿ÉÏÀ­ÊäÈëģʽ, ÕâÑù°´¼üûÓа´ÏµÄʱºòΪ¸ßµçƽ, Èç¹û°´¼ü°´ÏÂʱ±à³ÌµÍµçƽ */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;	
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; 
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 
  GPIO_Init(GPIOC, &GPIO_InitStructure); 
	
	/* ³õʼ»¯PC5ΪϽµÑØ´¥·¢ÖÐ¶Ï */
	GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource2); 
  EXTI_InitStructure.EXTI_Line = EXTI_Line2; 
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; 
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; 
  EXTI_InitStructure.EXTI_LineCmd = ENABLE; 
  EXTI_Init(&EXTI_InitStructure);	
	
	/* ³õʼ»¯ÖжÏÓÅÏȼ¶ */
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); 
  NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQn;	
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; 
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;	
  NVIC_Init(&NVIC_InitStructure); 
} 

/* Key3 Á¬ÔÚ PC3ÉÏ, ½«PC3ÉèÖÃΪÖжÏϽµÑØ´¥·¢Ä£Ê½ */
void init_key3_gpio_interrupt(void) 
{ 
	GPIO_InitTypeDef GPIO_InitStructure; 
	EXTI_InitTypeDef EXTI_InitStructure; 
	NVIC_InitTypeDef NVIC_InitStructure; 
	
	/* ³õʼ»¯PC3ΪÄÚ²¿ÉÏÀ­ÊäÈëģʽ, ÕâÑù°´¼üûÓа´ÏµÄʱºòΪ¸ßµçƽ, Èç¹û°´¼ü°´ÏÂʱ±à³ÌµÍµçƽ */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;	
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; 
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 
  GPIO_Init(GPIOC, &GPIO_InitStructure); 
	
	/* ³õʼ»¯PC3ΪϽµÑØ´¥·¢ÖÐ¶Ï */
	GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource3); 
  EXTI_InitStructure.EXTI_Line = EXTI_Line3; 
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; 
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; 
  EXTI_InitStructure.EXTI_LineCmd = ENABLE; 
  EXTI_Init(&EXTI_InitStructure);	
	
	/* ³õʼ»¯ÖжÏÓÅÏȼ¶ */
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); 
  NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQn;	
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; 
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;	
  NVIC_Init(&NVIC_InitStructure); 
}