www.pudn.com > LJD2440-II_MON_OK.rar > lcdinit.c, change:2008-01-18,size:8503b
#include "def.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#define COLOR_RED_TFT16 0xf800
#define COLOR_GREEN_TFT16 0x07e0
#define COLOR_BLUE_TFT16 0x001f
#define LCDFRAMEBUFFER 0x33800000
#define LCD_XSIZE_TFT (320)
#define LCD_YSIZE_TFT (240)
#define SCR_XSIZE_TFT (LCD_XSIZE_TFT*2)
#define SCR_YSIZE_TFT (LCD_YSIZE_TFT*2)
#define CLKVAL_TFT (7)
#define MVAL (13)
#define MVAL_USED (0)
#define BSWP (0) //Byte swap control
#define HWSWP (1) //Half word swap control
#define HOZVAL_TFT (LCD_XSIZE_TFT-1)
#define LINEVAL_TFT (LCD_YSIZE_TFT-1)
#define VBPD (4) //垂直同步信号的后肩
#define VFPD (4) //垂直同步信号的前肩
#define VSPW (4) //垂直同步信号的脉宽
#define HBPD (13) //水平同步信号的后肩
#define HFPD (4) //水平同步信号的前肩
#define HSPW (18) //水平同步信号的脉宽
#define M5D(n) ((n) & 0x1fffff) // To get lower 21bits
extern unsigned char BOMC_logo[];
U16 (*frameBuffer16BitTft)[SCR_XSIZE_TFT];
/*-----------------------------------------------------------------------------
* 320 x 240 TFT LCD单个象素的显示数据输出
*/
static void PutPixel(U32 x,U32 y,U16 c)
{
if(x= 0)
{
if(dy >= 0) // dy>=0
{
if(dx >= dy) // 1/8 octant
{
e = dy-dx/2;
while(x1 <= x2)
{
PutPixel(x1, y1, color);
if(e > 0) {y1+=1; e-=dx;}
x1 += 1;
e += dy;
}
}
else // 2/8 octant
{
e = dx-dy/2;
while(y1 <= y2)
{
PutPixel(x1, y1, color);
if(e > 0) {x1+=1; e-=dy;}
y1 += 1;
e += dx;
}
}
}
else // dy<0
{
dy = -dy; // dy=abs(dy)
if(dx >= dy) // 8/8 octant
{
e = dy-dx/2;
while(x1 <= x2)
{
PutPixel(x1, y1, color);
if(e > 0) {y1-=1; e-=dx;}
x1 += 1;
e += dy;
}
}
else // 7/8 octant
{
e = dx-dy/2;
while(y1 >= y2)
{
PutPixel(x1, y1, color);
if(e > 0) {x1+=1; e-=dy;}
y1 -= 1;
e += dx;
}
}
}
}
else //dx<0
{
dx=-dx; //dx=abs(dx)
if(dy >= 0) // dy>=0
{
if(dx>=dy) // 4/8 octant
{
e=dy-dx/2;
while(x1>=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1+=1;e-=dx;}
x1-=1;
e+=dy;
}
}
else // 3/8 octant
{
e=dx-dy/2;
while(y1<=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1-=1;e-=dy;}
y1+=1;
e+=dx;
}
}
}
else // dy<0
{
dy=-dy; // dy=abs(dy)
if(dx>=dy) // 5/8 octant
{
e=dy-dx/2;
while(x1>=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1-=1;e-=dx;}
x1-=1;
e+=dy;
}
}
else // 6/8 octant
{
e=dx-dy/2;
while(y1>=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1-=1;e-=dy;}
y1-=1;
e+=dx;
}
}
}
}
}
/*-----------------------------------------------------------------------------
* 在LCD屏幕上用颜色填充一个矩形
*/
static void Glib_FilledRectangle(int x1, int y1, int x2, int y2, U16 color)
{
int i;
for(i = y1; i <= y2; i++) { // 用n条直线填满区域!
Glib_Line(x1, i, x2, i, color);
}
}
/*-----------------------------------------------------------------------------
* 在LCD屏幕上指定坐标点画一个指定大小的图片
*/
static void Paint_Bmp(int x0, int y0, int h, int l, unsigned char bmp[])
{
int x, y;
U32 c;
int p = 0;
for( y = 0 ; y < l ; y++ )
{
for( x = 0 ; x < h ; x++ )
{
c = bmp[p+1] | (bmp[p]<<8) ;
if ( ( (x0+x) < SCR_XSIZE_TFT) && ( (y0+y) < SCR_YSIZE_TFT) )
frameBuffer16BitTft[y0+y][x0+x] = c ;
p = p + 2 ;
}
}
}
/*-----------------------------------------------------------------------------
* 320 x 240 TFT LCD全屏填充特定颜色单元或清屏
*/
static void Lcd_ClearScr( U16 c)
{
unsigned int x, y;
for( y = 0 ; y < SCR_YSIZE_TFT ; y++ )
{
for( x = 0 ; x < SCR_XSIZE_TFT ; x++ )
{
frameBuffer16BitTft[y][x] = c ;
}
}
}
//优龙LCD驱动夏普DH01液晶屏
void LcdDisplay(void)
{
int x, y;
//PWM, GPB1
rGPBUP &= 0xfffd;
rGPBCON &= 0xfffffff3;
rGPBCON |= 0x00000004;
rGPBDAT |= 0x0002;
frameBuffer16BitTft=(U16 (*)[SCR_XSIZE_TFT])LCDFRAMEBUFFER;
// rGPCUP=0xffffffff; // Disable Pull-up register
rGPCUP = 0x00000000;
// rGPCCON=0xaaaa56a9; //Initialize VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND
rGPCCON = 0xaaaa02a9;
// rGPDUP=0xffffffff; // Disable Pull-up register
rGPDUP = 0x00000000;
rGPDCON=0xaaaaaaaa; //Initialize VD[15:8]
rLCDCON1=(CLKVAL_TFT<<8)|(MVAL_USED<<7)|(3<<5)|(12<<1)|0;
// TFT LCD panel,12bpp TFT,ENVID=off
rLCDCON2=(VBPD<<24)|(LINEVAL_TFT<<14)|(VFPD<<6)|(VSPW);
rLCDCON3=(HBPD<<19)|(HOZVAL_TFT<<8)|(HFPD);
rLCDCON4=(MVAL<<8)|(HSPW);
// rLCDCON5=(1<<11)|(0<<9)|(0<<8)|(0<<6)|(BSWP<<1)|(HWSWP); //FRM5:6:5,HSYNC and VSYNC are inverted
rLCDCON5 = (1<<11) | (1<<10) | (1<<9) | (1<<8) | (0<<7) | (0<<6)
| (1<<3) |(BSWP<<1) | (HWSWP);
rLCDSADDR1=(((U32)LCDFRAMEBUFFER>>22)<<21)|M5D((U32)LCDFRAMEBUFFER>>1);
rLCDSADDR2=M5D( ((U32)LCDFRAMEBUFFER+(SCR_XSIZE_TFT*LCD_YSIZE_TFT*2))>>1 );
rLCDSADDR3=(((SCR_XSIZE_TFT-LCD_XSIZE_TFT)/1)<<11)|(LCD_XSIZE_TFT/1);
rLCDINTMSK|=(3); // MASK LCD Sub Interrupt
rTCONSEL &= (~7) ; // Disable LPC3480
// rTCONSEL&=~((1<<4)|1); // Disable LCC3600, LPC3600
rTPAL=0; // Disable Temp Palette
rLCDCON1|=1; // ENVID=ON
// LOGO
Glib_FilledRectangle(0, 0, 320, 35, 0x0);
Glib_FilledRectangle(0, 35,5, 206, 0x0);
Delay(10);
Glib_FilledRectangle( 5, 35, 315, 40, 0xf800); //Red,top
Glib_FilledRectangle(10, 40, 310, 45, 0x07e0); //Green,top
Glib_FilledRectangle(15, 45, 305, 50, 0x001f); //Blue,top
Delay(10);
Glib_FilledRectangle( 5, 37, 9, 200, 0xf800); //Red,left
Glib_FilledRectangle(10, 45, 15, 195, 0x07e0); //Green,left
Glib_FilledRectangle(16, 50, 20, 190, 0x001f); //Blue,left
Delay(10);
Glib_FilledRectangle(311, 40, 315, 200, 0xf800); //Red,right
Glib_FilledRectangle(305, 45, 310, 195, 0x07e0); //Green,right
Glib_FilledRectangle(300, 50, 304, 190, 0x001f); //Blue,right
Delay(50);
Paint_Bmp(20, 50, 280, 190, BOMC_logo); //picture
Delay(10);
Glib_FilledRectangle( 5, 200, 315, 206, 0xf800); //Red,button
Glib_FilledRectangle( 10,195, 310, 200, 0x07e0); //Green,button
Glib_FilledRectangle( 16,190, 304, 195, 0x001f); //Blue,button
Glib_FilledRectangle(315,35, 320, 206, 0x0);
Glib_FilledRectangle(0, 206, 320, 240, 0x0);
}