lcd44b0.c

基于三星公司的ARM9 的2410的ucGUI的液晶驱动程序

#include <string.h>

#include "\inc\44b.h"
#include "\inc\44blib.h"
#include "\inc\def.h"


#include "\inc\lcdlib.h"
#include "..\..\config\LCDConf.h"


unsigned int (*frameBuffer1)[SCR_XSIZE/32];
unsigned int (*frameBuffer4)[SCR_XSIZE/16];
unsigned int (*frameBuffer16)[SCR_XSIZE/8];
unsigned int (*frameBuffer256)[SCR_XSIZE/4];
void Lcd_Init_44(int depth)
{
    if((U32)frameBuffer256==0)
	{
	    //The total frame memory should be inside 4MB.
	    //For example, if total memory is 8MB, the frame memory 
	    //should be in 0xc000000~0xc3fffff or c400000~c7fffff.
	    //But, the following code doesn't meet this condition(4MB) 
	    //if the code size & location is changed..
	    frameBuffer256=(unsigned int (*)[SCR_XSIZE/4])malloc(ARRAY_SIZE_COLOR); 
	}
    ////////////////////////////
	rPDATC = 0xffff;	
	rPCONC = 0x0f00ff54;	
	rPUPC  = 0x3000;

	rPDATD= 0xff;
	rPCOND= 0xaaaa;	
	rPUPD = 0x0;
	
	rPDATE	= 0x1ff;
	rPCONE	= 0x15569;	
	rPUPE	= 0x6;
	
	///////////////////////////
	rLCDCON1=(0x0)|(2<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_COLOR<<12);
	    // disable,8B_SNGL_SCAN,VM'toggle rate is EACH FRAME,WDLY=16clk,WLH=16clk,CLKVAL=4(60M)
	rLCDCON2=(LINEVAL_COLOR)|(HOZVAL_COLOR<<10)|(10<<21);  
	    //LINEVAL=240-1,HOZVAL_COLOR,LINEBLANK=10 (without any calculation) 
	rLCDSADDR1= (0x3<<27) | ( ((U32)frameBuffer256>>22)<<21 ) | M5D((U32)frameBuffer256>>1);
	    // 256-color, LCDBANK, LCDBASEU
	rLCDSADDR2= M5D((((U32)frameBuffer256+(SCR_XSIZE*LCD_YSIZE))>>1)) | (MVAL<<21);
	    //LCDBASEL  SCR_XSIZE MMODE=0 than MVAL=13
	rLCDSADDR3= (LCD_XSIZE/2) | ( ((SCR_XSIZE-LCD_XSIZE)/2)<<9 );
        //PAGEWIDTH, OFFSIZE
	//The following value has to be changed for better display.

	
	rREDLUT  =0xfdb96420;	//1111,1101,1011,1001,0110,0100,0010,0000
	rGREENLUT=0xfdb96420;
	rBLUELUT =0xfb40;

	rDITHMODE=0x0;
	rDP1_2 =0xa5a5;      
	rDP4_7 =0xba5da65;
	rDP3_5 =0xa5a5f;
	rDP2_3 =0xd6b;
	rDP5_7 =0xeb7b5ed;
	rDP3_4 =0x7dbe;
	rDP4_5 =0x7ebdf;
	rDP6_7 =0x7fdfbfe;

	rLCDCON1=(0x1)|(2<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_COLOR<<12);
	//display enable
	rPDATE=0xfe;
}



void Lcd_MoveViewPort(int vx,int vy,int depth)
{
    U32 addr;
    switch(depth)
    {
    case 1:
    	// LCDBASEU,LCDBASEL register has to be changed before 12 words before the end of VLINE.
    	// In mono mode, x=320 is 10 words, So, We can't change LCDBASEU,LCDBASEL 
    	// during LINECNT=1~0 at mono mode. 

	//The processor mode should be superviser mode.  
    	DisableInterrupt(); 

    #if (LCD_XSIZE<512)
    	while((rLCDCON1>>22)<=1); // if x<512
    #else	
    	while((rLCDCON1>>22)==0); // if x>512 ((12+4)*32) 
    #endif

        addr=(U32)frameBuffer1+(vx/8)+vy*(SCR_XSIZE/8);
	rLCDSADDR1= (0x0<<27) | ( (addr>>22)<<21 ) | M5D(addr>>1);
	    // monochrome, LCDBANK, LCDBASEU
	rLCDSADDR2= M5D( ((addr+(SCR_XSIZE*LCD_YSIZE/8))>>1) ) | (MVAL<<21);

	EnableInterrupt();
       	break;

    case 4:
	//The processor mode should be superviser mode.  
    	DisableInterrupt(); 

    #if (LCD_XSIZE<256)
    	while((rLCDCON1>>22)<=1); // if x<256
    #else	
    	while((rLCDCON1>>22)==0); // if x>256
    #endif
        addr=(U32)frameBuffer4+(vx/4)+vy*(SCR_XSIZE/4);
	rLCDSADDR1= (0x1<<27) | ( (addr>>22)<<21 ) | M5D(addr>>1);
	    // 4-gray, LCDBANK, LCDBASEU
	rLCDSADDR2= M5D(((addr+(SCR_XSIZE*LCD_YSIZE/4))>>1)) | (MVAL<<21);

	EnableInterrupt();
    	break;

    case 16:
	//The processor mode should be superviser mode.  
    	DisableInterrupt(); 

    #if (LCD_XSIZE<128)
    	while((rLCDCON1>>22)<=1); // if x<128
    #else	
    	while((rLCDCON1>>22)==0); // if x>128
    #endif
        addr=(U32)frameBuffer16+(vx/2)+vy*(SCR_XSIZE/2);
	rLCDSADDR1= (0x2<<27) | ( (addr>>22)<<21 ) | M5D(addr>>1);
	    // 16-gray, LCDBANK, LCDBASEU
	rLCDSADDR2= M5D(((addr+(SCR_XSIZE*LCD_YSIZE/2))>>1)) | (MVAL<<21);

	EnableInterrupt();
    	break;

    case 256:
	//The processor mode should be superviser mode.  
    	DisableInterrupt(); 

    #if (LCD_XSIZE<64)
    	while((rLCDCON1>>22)<=1); // if x<64
    #else	
    	while((rLCDCON1>>22)==0); // if x>64
    #endif
        addr=(U32)frameBuffer256+(vx/1)+vy*(SCR_XSIZE/1);
	rLCDSADDR1= (0x3<<27) | ( (addr>>22)<<21 ) | M5D(addr>>1);
	    // 256-color, LCDBANK, LCDBASEU
	rLCDSADDR2= M5D(((addr+(SCR_XSIZE*LCD_YSIZE))>>1)) | (MVAL<<21);

	EnableInterrupt();
    	break;
    }
}    

void Lcd_DispON(void)
{
	//Delay(5000);
   //rPDATC = ( rPDATC | (1<<8) );		//FS44B0X OFF//51EDA ON
    //Delay(5000);
}

void Lcd_DispOFF(void)
{
	//Delay(5000);
    //rPDATC = ( rPDATC & (~ (1<<8)) );		//FS44B0X OFF//51EDA ON
    //Delay(5000);
}

void Lcd_PowerReset(void)	
{
    /*U8 i;
    rPDATC = ( rPDATC | 3<<4 );		//crtl=1,adj=1
    for(i=0;i<1;i++);
    rPDATC = ( rPDATC & (~(1<<5)) );	//ctrl=0
    for(i=0;i<2;i++);
    rPDATC = ( rPDATC | 1<<5 );		//ctrl=1
    for(i=0;i<1;i++);
    rPDATC = ( rPDATC & (~(1<<4)) );	//adj=0
*/
}

void Lcd_PowerUp(void)
{
   /* U8 i;
    rPDATC = ( rPDATC | 2<<4 );		//ctrl=1,adj=0
    for(i=0;i<2;i++);
    rPDATC = ( rPDATC | 1<<4 );		//adj=1
    for(i=0;i<1;i++);
    rPDATC = ( rPDATC & (~(1<<4)) );	//adj=0
    for(i=0;i<2;i++);*/
}

//*****************************************************************************


void MoveViewPort(int depth)
{
    int vx=0,vy=0,vd;
    vd=(depth==1)*16+(depth==4)*8+(depth==16)*4+(depth==256)*2;
    while(1)
    {
    	switch(Uart_Getch())
    	{
    	case 'i':
	    if(vy>=vd)vy-=vd;    	   	
    	    break;
    	case 'j':
    	    if(vx>=vd)vx-=vd;
    	    break;
    	case 'k':
	    if(vx<=SCR_XSIZE-LCD_XSIZE-vd)vx+=vd;
    	    break;
    	case 'm':
	    if(vy<=(SCR_YSIZE-LCD_YSIZE-vd))vy+=vd;    	   	
    	    break;
    	case '\r':
    	    return;
    	default:
	    break;
	}
	Uart_Printf("vx=%3d,vy=%3d\n",vx,vy);
	Lcd_MoveViewPort(vx,vy,depth);
    }
}