/******************************************************************************
 * Copyright (C) 2014-2015 HangZhou SiZhu Co.,LTD.
 *
 *-----------------------------------------------------------------------------
 * File: 			    KEY.c
 * Description:		KEY scan code
 * Author:			  Lishoujian (867693272@qq.com)
 * Date:			    Jan 8, 2015
 *****************************************************************************/

/* ----------------------- Platform includes --------------------------------*/

#include "key.h"
#include "delay.h"

#include "stm32f10x_exti.h"




/******************************************
 * func:    Get_key
 * desc:    scan key & return key data
 * input:   none
 * output:  none
 * return:  key data  4bytes:  
 *   4#   3#  2#   1#  byte
 * |   |KEY3|KEY2|KEY1|
 *****************************************/
uint32 Get_key(void)
{
	uint32 temp32a=0,temp32b=1;
	while(temp32a != temp32b)
	{
		temp32a = (KEY1 | (KEY2 << 8) | (KEY3 << 16));
		delay_ms(1);//È¥¶¶¶¯ 
		temp32b = (KEY1 | (KEY2 << 8) | (KEY3 << 16)); 
	}		
	return(temp32a);
}


uint32 get_key4(void)
{
	uint32 temp32a=0,temp32b=1;
	
	while(temp32a != temp32b)
	{
		temp32a = KEY4;
		delay_ms(1);//È¥¶¶¶¯ 
		temp32b = KEY4; 
	}		
	
	return(temp32a);

}
/******************************************
 * func:    Get_key_count
 * desc:    
 * input:   none
 * output:  none
 * return:    

 *****************************************/
/*
u8 Get_key_count(u8 keybufs,u8 key_count)
{
	uint32 key_stat=0;
	key_stat = Get_key(); //get key state

	if((key_stat) & 0xff)		   //°´¼ü°´Ï ËÉ¿ªÖ®ºó²ÅÄÜÉúЧÏÂÒ»´Î°´¼ü
	{
		if( !keybufs )
		{
			keybufs  = 0x01;
		}
	}
	else
	{
		if( keybufs )
		{
			keybufs  = 0x00;
			key_count++;
			if(key_count==11)
			{
			   key_count = 0;
			}
		}
	}
	return key_count;

}	  */
void key_interruptinit_disable(void)
{
	EXTI_InitTypeDef EXTI_InitStructure;  
//	NVIC_InitTypeDef NVIC_InitStructure;  
//	GPIO_InitTypeDef GPIO_InitStructure;	

	
// 	GPIO_InitStructure.GPIO_Pin  	= GPIO_Pin_7;  
// 	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
// 	GPIO_Init(GPIOC, &GPIO_InitStructure);
	
	
// 	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); 

// 	NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;	
// 	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
// 	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
// 	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;			
// 	NVIC_Init(&NVIC_InitStructure);

	GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource7);
	EXTI_InitStructure.EXTI_Line = EXTI_Line7;			 
	EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;	
	EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
	EXTI_InitStructure.EXTI_LineCmd = DISABLE;				 
	EXTI_Init(&EXTI_InitStructure);
}

void key_interruptinit_enable(void)
{
	EXTI_InitTypeDef EXTI_InitStructure;  
//	NVIC_InitTypeDef NVIC_InitStructure;  
//	GPIO_InitTypeDef GPIO_InitStructure;	

	
// 	GPIO_InitStructure.GPIO_Pin  	= GPIO_Pin_7;  
// 	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
// 	GPIO_Init(GPIOC, &GPIO_InitStructure);
	
	
// 	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); 

// 	NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;	
// 	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
// 	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
// 	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;			
// 	NVIC_Init(&NVIC_InitStructure);

	GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource7);
	EXTI_InitStructure.EXTI_Line = EXTI_Line7;			 
	EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;	
	EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
	EXTI_InitStructure.EXTI_LineCmd = DISABLE;				 
	EXTI_Init(&EXTI_InitStructure);
}

void key_interruptinit(void)  
{  
	EXTI_InitTypeDef EXTI_InitStructure;  
	NVIC_InitTypeDef NVIC_InitStructure;  
	GPIO_InitTypeDef GPIO_InitStructure;	

	
	GPIO_InitStructure.GPIO_Pin  	= GPIO_Pin_7;  
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
	GPIO_Init(GPIOC, &GPIO_InitStructure);
	
	
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); 

	NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;	
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;			
	NVIC_Init(&NVIC_InitStructure);

	GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource7);
	EXTI_InitStructure.EXTI_Line = EXTI_Line7;			 
	EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;	
	EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
	EXTI_InitStructure.EXTI_LineCmd = ENABLE;				 
	EXTI_Init(&EXTI_InitStructure);
}