touch.c

利用ADS1.2开发的s3c2410平台下的触摸屏程序

/*************************************************************************/
/*                                                                       */
/*               Copyright Shenzhen Watertek S.&T. Co.,Ltd  2002         */
/*                         All Rights Reserved.                          */
/*                                                                       */
/* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS  */
/* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS   */
/* SUBJECT TO LICENSE TERMS.                                             */
/*                                                                       */
/*************************************************************************/

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                               VERSION       */
/*                                                                       */
/*      usbmain.c                                   S3c2410 USB device 1.0*/
/*                                                                       */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains macro and main routines 		 */
/*                                                                       */
/* AUTHOR                                                                */
/*    	Zhi-gang yang   shenzhen watertek                                */
/*                                                                       */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      Ep3Handler                   EP3 interrupt handler          	 */
/*      PrintEpoPkt                  print ep out packet for debug       */
/*      RdPktEp3_CheckSum            No	use 				 */
/*      IsrDma2              	     DMA interrupt handler,No use in this*/
/*					 case  				 */
/*      ClearEp3OutPktReady          clear endpoint 3 packet out tag     */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      None	                          				 */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      2004-12-27      Created initial version 1.0                      */
/*************************************************************************/
#include <string.h>
#include <stdarg.h>
#include "2410addr.h"
#include "def.h"

void Led1_On_or_Off(int flag);
void Led2_On_or_Off(int flag);
void Led4_On_or_Off(int flag);
void clrsrc(void);
int setpixel(int x,int y,unsigned short pencolor);
void INT_ADC_Enable(int flag);
void tp_rewaite_int(void);
/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      C_Entry			                                         */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      C entry function				                 */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Zhi-gang Yang          shenzhen watertek                         */
/*                                                                       */
/* INPUTS                                                                */
/*      None                                                             */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      None      	                                                 */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      2004-12-28      Created initial version 1.0                      */
/*************************************************************************/
void C_Entry()
{
	INT_ADC_Enable(TRUE);
		while(10);
	;
}

void adcdly(int number)
{   
    int i,t;
    /*delaying the time*/
    for (i=0;i<number;i++)
    {
    	for (t=0;t<0x100;t++);
    }
 }

void tp_rewaite_int(void)
{
	/*define the pointer varible point to the register*/
	int *p_adctsc;
	p_adctsc=(int *)ADCTSC;
	*p_adctsc=0xd3;  /*confingure the register ADCTSC renable the touchpanel interrupt*/
}



int adc_x_position()
{   
    /*define the pointer varible and point to the register*/
    volatile int *p_adccon;
    int *p_adctsc;
    int *p_adcdat1;
    int adc_xdata,x_data;
    p_adccon=(int *)ADCCON;
    p_adctsc=(int *)ADCTSC;
    p_adcdat1=(int *)ADCDAT1;
    /*confingure the ADCTSC register and begin the X axis covision*/
    *p_adctsc=0x9a;
    *p_adccon=0x7ff9;
    while(!(*p_adccon & 0x8000));  /*if the covision is end?*/
    adcdly(1);                     /*delay little time for more nicety */
    adc_xdata=(*p_adcdat1)&0x3ff;  /*get the value from register ADCADT0*/
    x_data=(0x3c8-adc_xdata)*320/TP_XRAGE;/*covert the alue to coordinate*/
    return x_data;
 }   

int adc_y_position()
{
    /*define the pointer varible and point to the register*/
    volatile int *p_adccon;
    int *p_adctsc;
    int *p_adcdat0;
    int adc_ydata,y_data;
    p_adccon=(int *)ADCCON;
    p_adctsc=(int *)ADCTSC;
    p_adcdat0=(int *)ADCDAT0;
    *p_adctsc=0x69;     /*confingure the ADCTSC register and begin the Y axis covision*/
    *p_adccon=0x7FE9;
    while(!(*p_adccon & 0x8000)); /*if the covision is end?*/
    adcdly(1);                    /*delay little time for more nicety */
    adc_ydata=(*p_adcdat0)&0x3ff; /*get the value from register ADCADT0*/
    y_data=(0x3c8-adc_ydata)*240/TP_YRAGE;/*covert the alue to coordinate*/
    return y_data;
 } 
 
  
void TouchPanel_LISR(void)
{
	
	volatile int xPosition;
	volatile int yPosition;
	yPosition = adc_y_position();
	xPosition = adc_x_position();
	tp_rewaite_int();

}


int setpixel(int x,int y,unsigned short pencolor)
{
	int movetop;   /*THE PIXEL ADDRESS*/
	short *p;
	if (x<0||x>(int)x_limit) return ERROR;
	if (y<0||y>(int)y_limit) return ERROR;
	/*指向所要显示的像素偏移地址*/
	movetop=(x*x_size+y)*2;//一个像素占两个字节   
	p=(short *)(VideoAddrStart+movetop);
	*p=pencolor;
	return 1;
}



void clrsrc(void)
{
short *p;
for(p=(short*)VideoAddrStart;p<(short*)VideoAddrEnd;p++) *p=0;
return ;
}





void Led1_On_or_Off(int flag)
{
 
 int temp;
 if(flag ==TRUE)    //led1 on
    {
     //set GPF4
     temp = rGPFCON;
     rGPFCON = temp |(1<<8);
     temp = rGPFDAT;
     rGPFDAT = temp&(0<<4);
     }
     else			//led1 off
     {
     //set GPF4
     temp = rGPFCON;
     rGPFCON = temp |(1<<8);
     temp = rGPFDAT;
     rGPFDAT = temp|(1<<4);
     }
 }


void Led2_On_or_Off(int flag)
{
 
 int temp;
 if(flag ==TRUE)    //led1 on
    {
     //set GPF4
     temp = rGPFCON;
     rGPFCON = temp |(1<<10);
     temp = rGPFDAT;
     rGPFDAT = temp&(0<<5);
     }
     else			//led1 off
     {
     //set GPF4
     temp = rGPFCON;
     rGPFCON = temp |(1<<10);
     temp = rGPFDAT;
     rGPFDAT = temp|(1<<5);
     }
 }

void Led3_On_or_Off(int flag)
{
 
 int temp;
 if(flag ==TRUE)    //led1 on
    {
     //set GPF4
     temp = rGPFCON;
     rGPFCON = temp |(1<<12);
     temp = rGPFDAT;
     rGPFDAT = temp&(0<<6);
     }
     else			//led1 off
     {
     //set GPF4
     temp = rGPFCON;
     rGPFCON = temp |(1<<12);
     temp = rGPFDAT;
     rGPFDAT = temp|(1<<6);
     }
 }

void Led4_On_or_Off(int flag)
{
 
 int temp;
 if(flag ==TRUE)    //led1 on
    {
     //set GPF4
     temp = rGPFCON;
     rGPFCON = temp |(1<<14);
     temp = rGPFDAT;
     rGPFDAT = temp&(0<<7);
     }
     else			//led1 off
     {
     //set GPF4
     temp = rGPFCON;
     rGPFCON = temp |(1<<14);
     temp = rGPFDAT;
     rGPFDAT = temp|(1<<7);
     }
 }

void INT_ADC_Enable(int flag)
{
	int temp;
	if(flag == FALSE)
	{
		temp = rINTSUBMSK;
		temp |=(1<<10);
		rINTSUBMSK = temp;
	
		temp = rINTMSK;
		temp |=0x80000000;
		rINTMSK = temp;
	}
	else 
	{
		temp = rINTSUBMSK;
		temp = 0x5ff;
		rINTSUBMSK = temp;
	
		temp = rINTMSK;
		temp &= ~(0x80000000) ;
		rINTMSK = temp;
	}
}