button.c

zigbee 飞思卡尔 音频传输 基于ucos的所有源码

/*****************************************************
www.hhcn.org
www.hhcn.com
author:michael.chen     email:[e-mail]
time:2006.05.17
revision:1.0
******************************************************/

/*****************************************************
comment:sw2 by connected to IRQ4	
		sw3	by connected to IRQ5
		sw4	by connected to IRQ6
		sw5 by connected to IRQ7
		
		button_value_current=0,表示没有建
		button_value_current＝X，表示有键按下，并把button_value_current＝0，接收下一个按键。
******************************************************/

#include "common.h"
#include "src/drivers/led/led.h"
#include "button.h"

//#include <stdio.h>

vint32 button_value;//the value of button by pressed
vint32 button_flag;//the times of button by pressed
vuint8 button_value_current;//the value of button by pressed currently

__interrupt__
void sw2_interrupt(void)
{

	uint32 i=0;

	//disable interrupt
		MCF_INTC_IMRL |= 0x00000010; 
	    OS_ENTER_CRITICAL();
	
		asm(
		MOVEQ.L  #0,D0
 		MOVE.B   (OSIntNesting),D0
 		ADDQ.L   #1,D0
 		MOVE.B   D0,(OSIntNesting)
  		CMPI.L   #1, d0
  		BNE 	   _SkipSave
  		MOVE.L   (OSTCBCur), A1
  		MOVE.L   A7,(A1)
  		);

 /***********************************************************************/ 		
  		
  		
  	_SkipSave:
		
	button_value +=	1; 
	//deug
	printf("sw2\n");
//	fflush(stdout);
	button_flag++;//the times of button by pressed has been added
	button_value_current =	2;//the NO.2 button has been pressed
//	MCF_EPORT_EPFR = 0x10; //clear the irq 4
	led_display(button_value_current);

//hold channel for a while
    for(i=0;i<=0x300000;i++);
   		nop();
	OS_EXIT_CRITICAL();
	OSIntExit();	
	MCF_EPORT_EPFR = 0x10; //clear the irq 4

	//enable interrupt
	MCF_INTC_IMRL &= ~0x00000010; 
}

__interrupt__
void sw3_interrupt(void)
{
	uint32 i=0;
	
	//disable interrupt
		MCF_INTC_IMRL |= 0x00000020; 
	    OS_ENTER_CRITICAL();
	
	asm(
		MOVEQ.L  #0,D0
 		MOVE.B   (OSIntNesting),D0
 		ADDQ.L   #1,D0
 		MOVE.B   D0,(OSIntNesting)
  		CMPI.L   #1, d0
  		BNE 	   _SkipSave
  		MOVE.L   (OSTCBCur), A1
  		MOVE.L   A7,(A1)
  		);
 /***********************************************************************/ 		
  		
  		
  	_SkipSave:

	button_value +=	2;
	//deug
	printf("sw3\n");
//	fflush(stdout);
	button_flag++;//the times of button by pressed has been added
	button_value_current =	3;//the NO.3 button has been pressed
	
	led_display(button_value_current);
	/*
	//去抖动
	for (j=0;j<1000;j++)
		for (i = 0;i<5000;i++);
	*/
	//hold channel for a while
    for(i=0;i<=0x300000;i++);
   		nop();
	OS_EXIT_CRITICAL();
	OSIntExit();
	MCF_EPORT_EPFR = 0x20; //clear the irq 5

	//enable interrupt
	MCF_INTC_IMRL &= ~0x00000020; 
}

__interrupt__
void sw4_interrupt(void)
{
	uint32 i=0;
	//disable interrupt
		MCF_INTC_IMRL |= 0x00000040; 

	    OS_ENTER_CRITICAL();
	
	asm(
		MOVEQ.L  #0,D0
 		MOVE.B   (OSIntNesting),D0
 		ADDQ.L   #1,D0
 		MOVE.B   D0,(OSIntNesting)
  		CMPI.L   #1, d0
  		BNE 	   _SkipSave
  		MOVE.L   (OSTCBCur), A1
  		MOVE.L   A7,(A1)
  		);
 /***********************************************************************/ 		
  		
  		
  	_SkipSave:

	button_value +=	4;
	//deug
	printf("sw4\n");
//	fflush(stdout);
	button_flag++;//the times of button by pressed has been added
	button_value_current =	4;//the NO.4 button has been pressed
	led_display(button_value_current);
//hold channel for a while
    for(i=0;i<=0x300000;i++);
   		nop();
	OS_EXIT_CRITICAL();
	OSIntExit();	
	MCF_EPORT_EPFR = 0x40; //clear the irq 6
	//enable interrupt
	MCF_INTC_IMRL &= ~0x00000040; 

}


__interrupt__
void sw5_interrupt(void)
{
	uint32 i=0;
	
	//关中断
	MCF_INTC_IMRL |= 0x00000080; 
	
    OS_ENTER_CRITICAL();

	asm(
		MOVEQ.L  #0,D0
 		MOVE.B   (OSIntNesting),D0
 		ADDQ.L   #1,D0
 		MOVE.B   D0,(OSIntNesting)
  		CMPI.L   #1, d0
  		BNE 	   _SkipSave
  		MOVE.L   (OSTCBCur), A1
  		MOVE.L   A7,(A1)
  		);

 /***********************************************************************/ 		
  		
  		
  	_SkipSave:

	button_value +=	8;
	//deug
	printf("sw5\n");
//	fflush(stdout);
	button_flag++;//the times of button by pressed has been added
	button_value_current =	5;//the NO.5 button has been pressed
	led_display(button_value_current);
//hold channel for a while
    for(i=0;i<=0x300000;i++);
   		nop();
	//for debug
//	printf("MCF_EPORT_EPFR=%x\n",MCF_EPORT_EPFR);
//	printf("MCF_EPORT_EPPDR=%x\n",MCF_EPORT_EPPDR);
	
	OS_EXIT_CRITICAL();
	
	OSIntExit();
	MCF_EPORT_EPFR = 0x80; //clear the irq 7
	//enable interrupt
	MCF_INTC_IMRL &= ~0x00000080;

}

//set interrupt severic router
//in ucos we should use OSVectSet()
//otherwise we use mcf5xxx_set_handler (int vector, void (*handler) (void)) .