//************************************************************
//  Copyright (c) 深圳市赛元微电子有限公司
//	文件名称	: sc92f8003_exti.c
//	作者		: 
//	模块功能	: EXTI固件库函数C文件
//	局部函数列表:
//  最后更正日期: 2018/9/4
// 	版本		: V1.0 
//  说明        ：  
//*************************************************************

#include "sc92f8003_exti.h"

/**************************************************
*函数名称：void EXTI_DeInit(EXTIx_Typedef INTx)
*函数功能：INTx相关寄存器复位至缺省值
*入口参数：INTx		INTx选择
*出口参数：void
**************************************************/
void EXTI_DeInit(EXTIx_Typedef INTx)
{
	switch(INTx)
	{
		case INT0:
			INT0R = 0x00;
			INT0F = 0x00;
			IE &= (~0X01);
			IP &= ~0X01;
			TCON &= (~0X02);
			break;

		case INT1:
			INT1R = 0x00;
			INT1F = 0x00;
			IE &= (~0X04);
			IP &= ~0X04;
			TCON &= (~0X08);
			break;

		case INT2:
			INT2R = 0x00;
			INT2F = 0x00;
			IE1 &= (~0X08);
			IP1 &= ~0X08;
			break;

		default:
			break;
	}		
}

/**************************************************
*函数名称：void EXTI_SetExtInt0xTriggerMode(uint8_t INT0x, EXTI_TriggerMode_Typedef TriggerMode)
*函数功能：INT0x中断触发方式配置函数
*入口参数：INT0x		INT0x选择
		   TriggerMode	中断触发方式选择
*出口参数：void
**************************************************/
void EXTI_SetExtInt0xTriggerMode(uint8_t INT0x, EXTI_TriggerMode_Typedef TriggerMode)
{
	switch(TriggerMode)
	{
		case EXTI_TRIGGER_RISE_ONLY:
			INT0R |= INT0x;
			INT0F &= (~INT0x);
			break;
		case EXTI_TRIGGER_FALL_ONLY:
			INT0R &= (~INT0x);
			INT0F |= INT0x;
			break;
		case EXTI_TRIGGER_RISE_FALL:
			INT0R |= INT0x;
			INT0F |= INT0x;
			break;
		case EXTI_TRIGGER_DISABLE:
			INT0R &= (~INT0x);
			INT0F &= (~INT0x); 
		default:
			break;
	}	 
}

/**************************************************
*函数名称：void EXTI_SetExtInt1xTriggerMode(uint8_t INT1x, EXTI_TriggerMode_Typedef TriggerMode)
*函数功能：INT1x中断触发方式配置函数
*入口参数：INT1x		INT1x选择
		   TriggerMode	中断触发方式选择
*出口参数：void
**************************************************/
void EXTI_SetExtInt1xTriggerMode(uint8_t INT1x, EXTI_TriggerMode_Typedef TriggerMode)
{
	switch(TriggerMode)
	{
		case EXTI_TRIGGER_RISE_ONLY:
			INT1R |= INT1x;
			INT1F &= (~INT1x);
			break;
		case EXTI_TRIGGER_FALL_ONLY:
			INT1R &= (~INT1x);
			INT1F |= INT1x;
			break;
		case EXTI_TRIGGER_RISE_FALL:
			INT1R |= INT1x;
			INT1F |= INT1x;
			break;
		case EXTI_TRIGGER_DISABLE:
			INT1R &= (~INT1x);
			INT1F &= (~INT1x); 
		default:
			break;
	}	 
}

/**************************************************
*函数名称：void EXTI_SetExtInt2xTriggerMode(uint8_t INT2x, EXTI_TriggerMode_Typedef TriggerMode)
*函数功能：INT2x中断触发方式配置函数
*入口参数：INT2x		INT2x选择
		   TriggerMode	中断触发方式选择
*出口参数：void
**************************************************/
void EXTI_SetExtInt2xTriggerMode(uint8_t INT2x, EXTI_TriggerMode_Typedef TriggerMode)
{
	switch(TriggerMode)
	{
		case EXTI_TRIGGER_RISE_ONLY:
			INT2R |= INT2x;
			INT2F &= (~INT2x);
			break;
		case EXTI_TRIGGER_FALL_ONLY:
			INT2R &= (~INT2x);
			INT2F |= INT2x;
			break;
		case EXTI_TRIGGER_RISE_FALL:
			INT2R |= INT2x;
			INT2F |= INT2x;
			break;
		case EXTI_TRIGGER_DISABLE:
			INT2R &= (~INT2x);
			INT2F &= (~INT2x); 	
		default:
			break;
	}	 
}

/*****************************************************
*函数名称：void EXTI_ITConfig(EXTIx_Typedef INTx, FunctionalState NewState, PriorityStatus Priority)
*函数功能：INTx中断初始化
*入口参数：INTx						INTx选择
		   FunctionalState NewState	中断使能/关闭选择
 		   PriorityStatus Priority	中断优先级选择
*出口参数：void
*****************************************************/
void EXTI_ITConfig(EXTIx_Typedef INTx, FunctionalState NewState, PriorityStatus Priority)
{
	switch(INTx)
	{
		case INT0:
			if(NewState != DISABLE)
			{
				IE |= 0X01;
			}
			else
			{
				IE &= (~0X01);
			}

			if(Priority == LOW)
			{
				IP &= ~0X01;	
			}
			else
			{
				IP |= 0X01;	
			}
			break;

		case INT1:
			if(NewState != DISABLE)
			{
				IE |= 0X04;
			}
			else
			{
				IE &= (~0X04);
			}
			
			if(Priority == LOW)
			{
				IP &= ~0X04;	
			}
			else
			{
				IP |= 0X04;	
			}
			break;

		case INT2:
			if(NewState != DISABLE)
			{
				IE1 |= 0X08;
			}
			else
			{
				IE1 &= (~0X08);
			}
			
			if(Priority == LOW)
			{
				IP1 &= ~0X08;	
			}
			else
			{
				IP1 |= 0X08;	
			}
			break;

		default:
			break;
	}	
}

/******************* (C) COPYRIGHT 2018 SinOne Microelectronics *****END OF FILE****/