lcdlib.c

44b0控制16级灰度lcd的显示程序,有完整的启动代码

#include "44b.h"
#include "def.h"
#include "option.h"
#include "utils.h"

#include "lcd.h"
#include "lcdlib.h"
#include "glib.h"
#include "slib.h"

extern int EnableInterrupt( void ) ;
extern int DisableInterrupt( void ) ;

//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 	(6)
#define CLKVAL_G4 		(6)
#define CLKVAL_G16 		(6)
#define CLKVAL_COLOR 		(6)
#define MVAL_USED 0

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

#define STACKSIZE    0xa00
	//SVC satck size(do not use user stack)

#define HEAPEND     (_ISR_STARTADDRESS-STACKSIZE-0x500) // = 0xc7ff000
	//SVC Stack Area:0xc(e)7ff000-0xc(e)7ffaff

extern char Image$$RW$$Limit[];

void *mallocPt=Image$$RW$$Limit;

/******************************************************************************
******************************************************************************/
void * malloc(unsigned nbyte) 
/*Very simple; Use malloc() & free() like Stack*/
//void *mallocPt=Image$$RW$$Limit;
{
    void *returnPt=mallocPt;

    mallocPt= (int *)mallocPt+nbyte/4+((nbyte%4)>0); //to align 4byte

    if( (int)mallocPt > HEAPEND )
    {
	mallocPt=returnPt;
	return NULL;
    }
    return returnPt;
}

//*****************************************************************************
void free(void *pt)
{
    mallocPt=pt;
}

/****************************************************************************
【功能说明】
****************************************************************************/
void Lcd_Init(int depth)
{  
    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<<1)|(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<<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); 
	}

    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<<1)|(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<<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;
    }	
}
//***************************************************************************

/****************************************************************************
【功能说明】
****************************************************************************/
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;
    }
}    
//***************************************************************************

/****************************************************************************
【功能说明】
****************************************************************************/
void Lcd_DispON(void)
{
	Delay(5);
	rPCONE = rPCONE & (~(0xf<<6)) | (0x5<<6) ;
    rPDATE = ( rPDATE | (3<<3) );
    Delay(5);
}
//***************************************************************************

/****************************************************************************
【功能说明】
****************************************************************************/
void Lcd_DispOFF(void)
{
	Delay(5);
	rPCONE = rPCONE & (~(0xf<<6)) | (0x5<<6) ;
    rPDATE = ( rPDATE & (~(3<<3)) );
    Delay(5);
}
//***************************************************************************

/****************************************************************************
【功能说明】黑白屏画图片
****************************************************************************/
void Lcd_Mono_Bmp( U16 x0, U16 y0, U16 x1, U16 y1 , unsigned char bmp[] )
{
    int x, y ;
    int m = 0;
    
    for( y = y1; y > y0; y-- )		//画16色图片
    {
    	for( x = x1; x > x0; x-=8 )
    	{
			PutPixel( (x+0), y, ((bmp[m]>>0)&0x01) );    	    
			PutPixel( (x+1), y, ((bmp[m]>>1)&0x01) );    	    
			PutPixel( (x+2), y, ((bmp[m]>>2)&0x01) );    	    
			PutPixel( (x+3), y, ((bmp[m]>>3)&0x01) );    	    
			PutPixel( (x+4), y, ((bmp[m]>>4)&0x01) );    	    
			PutPixel( (x+5), y, ((bmp[m]>>5)&0x01) );    	    
			PutPixel( (x+6), y, ((bmp[m]>>6)&0x01) );    	    
			PutPixel( (x+7), y, ((bmp[m]>>7)&0x01) );    	    

    	    m++ ;
    	}
    }    
}

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

/****************************************************************************
【功能说明】画4色图片
****************************************************************************/
void Lcd_G4_Bmp( U16 x0, U16 y0, U16 x1, U16 y1 , unsigned char bmp[] )
{
    int x, y ;
    int m = 0;
    
    for( y = y1; y > y0; y-- )		//画16色图片
    {
    	for( x = x1; x > x0; x-=4 )
    	{
			PutPixel( (x-4), (y-1), ( bmp[m]&0x03) );    	    
			PutPixel( (x-3), (y-1), ((bmp[m]>>2)&0x03) );    	    
			PutPixel( (x-2), (y-1), ((bmp[m]>>4)&0x03) );    	    
			PutPixel( (x-1), (y-1),  (bmp[m]>>6) );    	    
    	    m++ ;
    	}
    }    
}
//***************************************************************************

/****************************************************************************
【功能说明】画16色图片
****************************************************************************/
void Lcd_G16_Bmp( U16 x0, U16 y0, U16 x1, U16 y1 , unsigned char bmp[] )
{
    int x, y ;
    int m = 0;
    
    for( y = y1; y > y0; y-- )		//画16色图片
    {
    	for( x = x1; x > x0; x-=2 )
    	{
			PutPixel( (x-2), (y-1), (bmp[m]&0x0f) );    	    
			PutPixel( (x-1), (y-1), (bmp[m]>>4) );    	    
    	    m++ ;
    	}
    }    
}
//***************************************************************************

/****************************************************************************
【功能说明】
****************************************************************************/
U8 High_Low( U8 x )
{
	x = ( (x>>1)&0x1c ) | (x>>6) | (x<<5);
	return x ;
}
//***************************************************************************

/****************************************************************************
【功能说明】256色彩色图片
****************************************************************************/
void Lcd_C256_Bmp( U16 x0, U16 y0, U16 x1, U16 y1 , unsigned char bmp[] )
{
    int x, y ;
    int m = 0;
    
    for( y = y0; y < y1; y++ )		//画16色图片
    {
    	for( x = x0; x < x1; x++ )
    	{
    	    PutPixel( x, y, High_Low( bmp[m] ) );
    	    m++;
    	}
    }
}
//***************************************************************************