lcdlib.c

这是三星公司的arm7 s3c44b0x芯片的所有外设中断程序

//44BTEST : lcdlib.c
#include <string.h>
#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;
		S3C44B0X RISC MICROPROCESSOR TEST CODE EXAMPLE
		3-149
		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;
	default:
		break;
	}
}
void Lcd_DispON(void)
{
	Delay(5000);
    rPDATC = ( rPDATC & (~(1<<8)) );
    Delay(5000);
}