www.pudn.com > Source_program.rar > lcdlib.c

#include  
#include "..\inc\44b.h" 
#include "..\inc\44blib.h" 
#include "..\inc\def.h" 
#include "..\inc\lcd.h" 
#include "..\inc\lcdlib.h" 
#include "..\inc\glib.h" 
 
//SCR_XSIZE,SCR_YSIZE,LCD_XSIZE,LCD_YSIZE are defined in lcd.h 
 
#define M5D(n) ((n) & 0x1fffff) 
 
#define ARRAY_SIZE_MONO 	(SCR_XSIZE/8*SCR_YSIZE) 
#define ARRAY_SIZE_G4   	(SCR_XSIZE/4*SCR_YSIZE) 
#define ARRAY_SIZE_G16  	(SCR_XSIZE/2*SCR_YSIZE) 
#define ARRAY_SIZE_COLOR 	(SCR_XSIZE/1*SCR_YSIZE) 
 
#define HOZVAL			(LCD_XSIZE/4-1) 
#define HOZVAL_COLOR		(LCD_XSIZE*3/8-1) 
#define LINEVAL			(LCD_YSIZE-1) 
#define MVAL			(13) 
 
#define CLKVAL_MONO 		(13)  //60Mhz, CLKVAL=19 ->78.6Hz 
#define CLKVAL_G4 		(9)   //40Mhz, CLKVAL=9  ->110Hz 
#define CLKVAL_G16 		(10)   //40Mhz, CLKVAL=10 ->101Hz 
				      //              9  ->112Hz	 
//#define CLKVAL_COLOR 		(7)  //40Mhz 
#define CLKVAL_COLOR 		(10) //60Mhz  
 
 
void LcdInit(int color); 
 
unsigned int (*frameBuffer1)[SCR_XSIZE/32]; 
unsigned int (*frameBuffer4)[SCR_XSIZE/16]; 
unsigned int (*frameBuffer16)[SCR_XSIZE/8]; 
unsigned int (*frameBuffer256)[SCR_XSIZE/4]; 
 
 
#define MVAL_USED 0 
 
void Lcd_Init(int depth) 
{ 
    //320x240 1bit/1pixel LCD 
     
    switch(depth) 
    { 
    case 1:     
	if((U32)frameBuffer1==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.. 
	    frameBuffer1=(unsigned int (*)[SCR_XSIZE/32])malloc(ARRAY_SIZE_MONO);  
	} 
 
	rLCDCON1=(0)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_MONO<<12); 
	    // disable,4B_SNGL_SCAN,WDLY=8clk,WLH=8clk, 
	rLCDCON2=(LINEVAL)|(HOZVAL<<10)|(10<<21);   
	    //LINEBLANK=10 (without any calculation)  
	rLCDSADDR1= (0x0<<27) | ( ((U32)frameBuffer1>>22)<<21 ) | M5D((U32)frameBuffer1>>1); 
	    // monochrome, LCDBANK, LCDBASEU 
	rLCDSADDR2= M5D( (((U32)frameBuffer1+(SCR_XSIZE*LCD_YSIZE/8))>>1) ) | (MVAL<<21); 
	rLCDSADDR3= (LCD_XSIZE/16) | ( ((SCR_XSIZE-LCD_XSIZE)/16)<<9 ); 
 
	rLCDCON1=(1)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_MONO<<12); 
	    // enable,4B_SNGL_SCAN,WDLY=8clk,WLH=8clk, 
	break; 
 
    case 4: 
	if((U32)frameBuffer4==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.. 
	    frameBuffer4=(unsigned int (*)[SCR_XSIZE/16])malloc(ARRAY_SIZE_G4);  
	} 
 
	rLCDCON1=(0)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_G4<<12); 
	    // disable,4B_SNGL_SCAN,WDLY=8clk,WLH=8clk, 
	rLCDCON2=(LINEVAL)|(HOZVAL<<10)|(10<<21);   
	    //LINEBLANK=10 (without any calculation)  
	rLCDSADDR1= (0x1<<27) | ( ((U32)frameBuffer4>>22)<<21 ) | M5D((U32)frameBuffer4>>1); 
	    // 4-gray, LCDBANK, LCDBASEU 
	rLCDSADDR2= M5D((((U32)frameBuffer4+(SCR_XSIZE*LCD_YSIZE/4))>>1)) | (MVAL<<21); 
	rLCDSADDR3= (LCD_XSIZE/8) | ( ((SCR_XSIZE-LCD_XSIZE)/8)<<9 ); 
 
	//The following value has to be changed for better display. 
	//Select 4 levels among 16 gray levels. 
 
	rBLUELUT=0xfa40;  
	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=(1)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_G4<<12); 
	    // enable,4B_SNGL_SCAN,WDLY=8clk,WLH=8clk, 
	break; 
 
    case 16: 
	if((U32)frameBuffer16==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.. 
	    frameBuffer16=(unsigned int (*)[SCR_XSIZE/8])malloc(ARRAY_SIZE_G16);  
	} 
 
	//The following value has to be changed for better display. 
/*	rDITHMODE=0x1223a; //philips 
	rDP1_2 =0x5a5a;       
	rDP4_7 =0x366cd9b; 
	rDP3_5 =0xda5a7; 
	rDP2_3 =0xad7; 
	rDP5_7 =0xfeda5b7; 
	rDP3_4 =0xebd7; 
	rDP4_5 =0xebfd7; 
	rDP6_7 =0x7efdfbf;*/ 
 
        //rDITHMODE=0x12210;  
/*        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;*/ 
 
 
        rDITHMODE=0x12210; 	 
        //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=(0)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_G16<<12); 
	    // disable,4B_SNGL_SCAN,WDLY=8clk,WLH=8clk, 
	rLCDCON2=(LINEVAL)|(HOZVAL<<10)|(10<<21);   
	    //LINEBLANK=10 (without any calculation)  
	rLCDSADDR1= (0x2<<27) | ( ((U32)frameBuffer16>>22)<<21 ) | M5D((U32)frameBuffer16>>1); 
	    // 16-gray, LCDBANK, LCDBASEU 
	rLCDSADDR2= M5D((((U32)frameBuffer16+(SCR_XSIZE*LCD_YSIZE/2))>>1)) | (MVAL<<21); 
	rLCDSADDR3= (LCD_XSIZE/4) | ( ((SCR_XSIZE-LCD_XSIZE)/4)<<9 ); 
	rLCDCON1=(1)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_G16<<12); 
 
	    // enable,4B_SNGL_SCAN,WDLY=8clk,WLH=8clk, 
	break; 
 
    case 256: 
	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);  
	} 
 
	rLCDCON1=(0)|(2<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_COLOR<<12); 
	    // disable,8B_SNGL_SCAN,WDLY=8clk,WLH=8clk, 
	rLCDCON2=(LINEVAL)|(HOZVAL_COLOR<<10)|(10<<21);   
	    //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); 
	rLCDSADDR3= (LCD_XSIZE/2) | ( ((SCR_XSIZE-LCD_XSIZE)/2)<<9 ); 
 
	//The following value has to be changed for better display. 
 
	rREDLUT  =0xfdb96420; 
	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=(1)|(2<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_COLOR<<12); 
	    // enable,8B_SNGL_SCAN,WDLY=8clk,WLH=8clk, 
 
	break; 
 
    default: 
	break; 
    }	 
} 
 
 
 
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; 
    } 
}