palette.c

SAMSUNG官方发布的S3C2410开发板的最完整测试程序。本人用ADS1.2对其进行了优化和改进

/*****************************************
  NAME: palette.c
  DESC: LCD palette RAM test 
  HISTORY:
 *****************************************/
#include <string.h>
 #include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
//#include "2410slib.h" 
#include "palette.h"

static void MarchCMinusM(int address,int unit,unsigned int pattern,unsigned int mask);
static void _MarchSub1M(unsigned int *pt,int unit,unsigned int pattern,int incdec,unsigned int mask);

int marchError;

void Test_PaletteMemory(void)
{
    Uart_Printf("Palette RAM test by March C-\n");
	
    marchError=0;

    *((U32 *)PALETTE)=0x1234;
    Uart_Printf("data=%x\n",*((U32 *)PALETTE));
    
    //00->01->11<->10

    //Data cache should be turned off.
    
    MarchCMinusM(PALETTE,255,0x00000000,0xffff);
    MarchCMinusM(PALETTE,255,0x0000ffff,0xffff);
    MarchCMinusM(PALETTE,255,0x00ff00ff,0xffff);
    MarchCMinusM(PALETTE,255,0x0f0f0f0f,0xffff);
    MarchCMinusM(PALETTE,255,0x33333333,0xffff);
    MarchCMinusM(PALETTE,255,0x55555555,0xffff);
    Uart_Printf("P-RAM is tested.\n");
}


static void MarchCMinusM(int address,int unit,unsigned int pattern,unsigned int mask)
{
    int i;
    unsigned int *tempPt;
    
    tempPt=(unsigned int *)address;
    
    for(i=0;i<=unit;i++)
    {
	//Uart_Printf("P=%x",pattern);
	//    *tempPt++=pattern;
	//Uart_Printf("A=%x,P=%x\n",tempPt,*tempPt);
	*tempPt=pattern;
	tempPt+=1;
    }
    
    _MarchSub1M((unsigned int *)address,unit,~pattern,1,mask);
    _MarchSub1M((unsigned int *)address,unit,pattern,1,mask);
    _MarchSub1M((unsigned int *)address+(unit*1),unit,~pattern,-1,mask);
    _MarchSub1M((unsigned int *)address+(unit*1),unit,pattern,-1,mask); 
    
    tempPt=(unsigned int *)address;
    for(i=0;i<=unit;i++)
    {
    
	if( (mask & *tempPt)!=(pattern&mask) )
	{
	    marchError=1;
	    Uart_Printf("ERROR0:%x\n",tempPt);
	}
	tempPt+=0x1;
    }
    //Uart_Printf("RP=%x,RA=%x\n",*tempPt,tempPt);
}




static void _MarchSub1M(unsigned int *pt,int unit,unsigned int pattern,int incdec,unsigned int mask)
{
    unsigned int i,rp;
    unsigned int *pt2=pt;
    
    for(i=0;i<=unit;i++)
    {
	rp=*pt;
	//Uart_Printf("RP=%x",*pt);
	*pt=pattern;
	//Uart_Printf("j=%x,p=%x,pt=%x\n",rp,(~pattern),pt);
	
	if( (mask&rp)!=(mask&(~pattern)) )
	{
	    marchError=1;
	    Uart_Printf("ERROR1:A=%x,RP=%x,WP=%x pt2=%x \n",pt,rp,(~pattern),pt2);
	}
	pt+=incdec;
	Uart_Printf(".");
    }
}