lcddriver.c

uccos2的的源码文件

/****************************************Copyright (c)**************************************************

********************************************************************************************************/
#define  IN_LCDDRIVE
#include "config.h"

//-----------------------------------------------------------------
unsigned short LCD_BUFER[SCR_YSIZE_TFT_800480][SCR_XSIZE_TFT_800480];

/**************************************************************
16Bpp TFT LCD数据和控制端口初始化
**************************************************************/
void Lcd_Port_Init(void)
{
    //rGPCUP = 0xffffffff; // Disable Pull-up register
    rGPCUP = 0x0; // enable Pull-up register
    //rGPCCON = 0xaaaa56a9; //Initialize VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND 
    rGPCCON = 0xaaaaaaaa;

    //rGPDUP = 0xffffffff ; // Disable Pull-up register
    rGPDUP = 0x0 ; // enable Pull-up register
    rGPDCON=0xaaaaaaaa; //Initialize VD[15:8]
}

/**************************************************************
16Bpp TFT LCD功能模块初始化
**************************************************************/
void Lcd_Init(void)
{
	rLCDCON1=(CLKVAL_TFT_800480<<8)|(MVAL_USED<<7)|(3<<5)|(12<<1)|0;
    	// TFT LCD panel,12bpp TFT,ENVID=off
	rLCDCON2=(VBPD_800480<<24)|(LINEVAL_TFT_800480<<14)|(VFPD_800480<<6)|(VSPW_800480);
	rLCDCON3=(HBPD_800480<<19)|(HOZVAL_TFT_800480<<8)|(HFPD_800480);
	rLCDCON4=(MVAL<<8)|(HSPW_800480);
	//rLCDCON5=(1<<11)|(0<<10) |(1<<9)|(1<<8)|(1<<7) |(0<<6)|(BSWP<<1)|(HWSWP);	//FRM5:6:5,HSYNC and VSYNC are inverted----
	rLCDCON5=(1<<11)|(0<<10) |(1<<9)|(1<<8)|(0<<7) |(0<<6)|(BSWP<<1)|(HWSWP);	//FRM5:6:5,HSYNC and VSYNC are inverted----LQ035Q7DB02
	
	rLCDSADDR1=(((uint32)LCD_BUFER>>22)<<21)|M5D((uint32)LCD_BUFER>>1);
	rLCDSADDR2=M5D( ((uint32)LCD_BUFER+(SCR_XSIZE_TFT_800480*LCD_YSIZE_TFT_800480*2))>>1 );
	rLCDSADDR3=(((SCR_XSIZE_TFT_800480-LCD_XSIZE_TFT_800480)/1)<<11)|(LCD_XSIZE_TFT_800480/1);
	
	rLCDINTMSK|=(3); // MASK LCD Sub Interrupt
	rLPCSEL&=(~7); // Disable LPC3600
	rTPAL=0; // Disable Temp Palette
}

/**************************************************************
LCD视频和控制信号输出或者停止，1开启视频输出
**************************************************************/
void Lcd_EnvidOnOff(int onoff)
{
    if(onoff==1)
	rLCDCON1|=1; // ENVID=ON
    else
	rLCDCON1 =rLCDCON1 & 0x3fffe; // ENVID Off
}

void  TFT_Initialize(void)
{   
    	Lcd_Port_Init();
       Lcd_Init();
	Lcd_EnvidOnOff(1);		//turn on vedio
}

/**************************************************************
LPC3600 is a timing control logic unit
**************************************************************/
/*
static void Lcd_Lpc3600Enable(void)
{
    rLPCSEL&=~(7);
    rLPCSEL|=(7); // 240320,Enable LPC3600
}    
*/
/**************************************************************
8Bpp TFT LCD 电源控制引脚使能
**************************************************************/
/*
static void Lcd_PowerEnable(int invpwren,int pwren)
{
    //GPG4 is setted as LCD_PWREN
    rGPGUP = rGPGUP|(1<<4); // Pull-up disable
    rGPGCON = rGPGCON|(3<<8); //GPG4=LCD_PWREN
    //Enable LCD POWER ENABLE Function
    rLCDCON5 = rLCDCON5&(~(1<<3))|(pwren<<3);   // PWREN
    rLCDCON5=rLCDCON5&(~(1<<5))|(invpwren<<5);   // INVPWREN
}
*/
/**************************************************************
16Bpp TFT LCD单个象素的显示数据输出
**************************************************************/
void PutPixel(uint32 x,uint32 y,uint32 c)
{
	if ( (x < SCR_XSIZE_TFT_800480) && (y < SCR_YSIZE_TFT_800480) )
		LCD_BUFER[(y)][(x)] = c;
}

/**************************************************************
16Bpp TFT LCD全屏填充特定颜色单元或清屏
**************************************************************/
void Lcd_ClearScr(uint16 c)
{
	unsigned int x,y ;
		
    for( y = 0 ; y < SCR_YSIZE_TFT_800480; y++ )
    {
    	for( x = 0 ; x < SCR_XSIZE_TFT_800480; x++ )
    	{
			LCD_BUFER[y][x] = c;
    	}
    }
}

/**************************************************************
LCD屏幕显示垂直翻转
// LCD display is flipped vertically
// But, think the algorithm by mathematics point.
//   3I2
//   4 I 1
//  --+--   <-8 octants  mathematical cordinate
//   5 I 8
//   6I7
**************************************************************/
void Glib_Line(int x1,int y1,int x2,int y2,int color)
{
	int dx,dy,e;
	dx=x2-x1; 
	dy=y2-y1;
    
	if(dx>=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屏幕上画一个矩形
**************************************************************/
/*
static void Glib_Rectangle(int x1,int y1,int x2,int y2,int color)
{
    Glib_Line(x1,y1,x2,y1,color);
    Glib_Line(x2,y1,x2,y2,color);
    Glib_Line(x1,y2,x2,y2,color);
    Glib_Line(x1,y1,x1,y2,color);
}
*/
/**************************************************************
在LCD屏幕上用颜色填充一个矩形
**************************************************************/
void Glib_FilledRectangle(int x1,int y1,int x2,int y2,int color)
{
    int i;

    for(i=y1;i<=y2;i++)
	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
**************************************************************/
void Paint_Bmp(int x0,int y0,int h,int l,unsigned char bmp[])
{
	int x,y;
	uint32 c;
	int p = 0;

//本图片显示是正的显示方式
    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_800480) && ( (y0+y) < SCR_YSIZE_TFT_800480) )
				LCD_BUFER[y0+y][x0+x] = c ;

    		p = p + 2 ;
    	}
    }

/*本图片显示是倒过来的，是旋转了180度的显示方式	
    for( y = l ; y > 0 ; y-- )
    {
    	for( x = h ; x > 0 ; x-- )
    	{
    		c = bmp[p+1] | (bmp[p]<<8) ;

			if ( ( (x0+x) < SCR_XSIZE_TFT_240320) && ( (y0+y) < SCR_YSIZE_TFT_240320) )
			LCD_BUFER[y0+y][x0+x] = c ;

    		p = p + 2 ;
    	}
    }
*/
}
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/