📄 lcd.c
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/**************************************************************
The initial and control for 320×240 24Bpp TFT LCD----3.5寸横屏
**************************************************************/
#include <string.h>
#include "2410addr.h"
#include "2410lib.h"
#include "def.h"
#include "2410slib.h"
#include "LCD.h"
volatile unsigned short LCD_BUFER[SCR_YSIZE_TFT_240320][SCR_XSIZE_TFT_240320];
//extern const unsigned char GPS_320_240_16bpp[];
/**************************************************************
SAMSUNG LCD LTV350QV SPI 接口程序
**************************************************************/
void lcd_spi_process(unsigned char type,U16 datas)
{
unsigned char i;
unsigned char orders;
rGPCDAT &= ~LCD_spi_cs;
Delay(3);
if(type) orders = 0x74;
else orders = 0x76;
for(i = 0; i < 8; i++)
{
rGPCDAT &= ~LCD_spi_scl;
Delay(1);
if(orders & 0x80) rGPCDAT |= LCD_spi_sdi;
else rGPCDAT &= ~LCD_spi_sdi;
Delay(1);
rGPCDAT |= LCD_spi_scl;
Delay(1);
orders = orders << 1;
}
for(i = 0; i < 16; i++)
{
rGPCDAT &= ~LCD_spi_scl;
Delay(1);
if(datas & 0x8000) rGPCDAT |= LCD_spi_sdi;
else rGPCDAT &= ~LCD_spi_sdi;
Delay(1);
rGPCDAT |= LCD_spi_scl;
Delay(1);
datas = datas << 1;
}
rGPCDAT |= LCD_spi_cs;
}
void lcd_samsung_LTV350QV_SPI_write(unsigned char reg,U16 datas)
{
lcd_spi_process(LCD_command_INDEX,reg);
lcd_spi_process(LCD_command_INSTR,datas);
}
void samsung_LTV350QV_init(void)
{
lcd_samsung_LTV350QV_SPI_write(9,0);
Delay(100);
lcd_samsung_LTV350QV_SPI_write(9,0x4000);
lcd_samsung_LTV350QV_SPI_write(10,0x2000);
lcd_samsung_LTV350QV_SPI_write(9,0x4055);
Delay(500);
lcd_samsung_LTV350QV_SPI_write(1,0x409d);
lcd_samsung_LTV350QV_SPI_write(2,0x0204);
lcd_samsung_LTV350QV_SPI_write(3,0x0100);
lcd_samsung_LTV350QV_SPI_write(4,0x3000);
lcd_samsung_LTV350QV_SPI_write(5,0x4003);
lcd_samsung_LTV350QV_SPI_write(6,0x000C);
lcd_samsung_LTV350QV_SPI_write(7,0x002C);
lcd_samsung_LTV350QV_SPI_write(8,0x0c00);
lcd_samsung_LTV350QV_SPI_write(9,0x0000);
lcd_samsung_LTV350QV_SPI_write(16,0x0103);
lcd_samsung_LTV350QV_SPI_write(17,0x0301);
lcd_samsung_LTV350QV_SPI_write(18,0x1f0f);
lcd_samsung_LTV350QV_SPI_write(19,0x1f0f);
lcd_samsung_LTV350QV_SPI_write(20,0x0707);
lcd_samsung_LTV350QV_SPI_write(21,0x0307);
lcd_samsung_LTV350QV_SPI_write(22,0x0707);
lcd_samsung_LTV350QV_SPI_write(23,0x0000);
lcd_samsung_LTV350QV_SPI_write(24,0x0004);
lcd_samsung_LTV350QV_SPI_write(25,0x0000);
Delay(300);
lcd_samsung_LTV350QV_SPI_write(9,0x4a55);
lcd_samsung_LTV350QV_SPI_write(5,0x5003);
}
/**************************************************************
320×240 16Bpp TFT LCD数据和控制端口初始化
**************************************************************/
void Lcd_Port_Init(void)
{
rGPCUP = 0x00E1; //上拉电阻
rGPCCON = 0xaaaa56aB; //初始化VD[7:0],VM,VFRAME,VLINE,VCLK
rGPDUP = 0x0; //上拉电阻
rGPDCON = 0xaaaaaaaa; //初始化VD[23:16][15:8]
}
/**************************************************************
320×240 16Bpp TFT LCD功能模块初始化
**************************************************************/
void Lcd_Init(void)
{
rLCDCON1 = (CLKVAL_TFT_240320 << 8) | ((PNRMODE) << 5) | (BPPMODE << 1); // TFT LCD panel,24bpp TFT,ENVID=off
rLCDCON2 = (VBPD_240320 << 24) | (LINEVAL_TFT_240320 << 14) | (VFPD_240320 << 6) | (VSPW_240320);
rLCDCON3 = (HBPD_240320 << 19) | (HOZVAL_TFT_240320 << 8) | (HFPD_240320);
rLCDCON4 = (MVAL<<8) | (HSPW_240320);
rLCDCON5 = ((FRM565) << 11) | ((INVVCLK) << 10) | ((INVVLINE) << 9) | ((INVVFRAME) << 8);
rLCDSADDR1 = (((U32)LCD_BUFER >> 22) << 21) | M5D((U32)LCD_BUFER >> 1);
rLCDSADDR2=M5D(((U32)LCD_BUFER + (SCR_XSIZE_TFT_240320 * LCD_YSIZE_TFT_240320 * 2)) >> 1 );
rLCDSADDR3=(((SCR_XSIZE_TFT_240320 - LCD_XSIZE_TFT_240320) / 1) << 11) | (LCD_XSIZE_TFT_240320 / 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 |= ENVID_on; // ENVID=ON
else rLCDCON1 &= ENVID_off; // ENVID Off
}
/**************************************************************
LPC3600 is a timing control logic unit for LTS350Q1-PD1 or LTS350Q1-PD2
**************************************************************/
void Lcd_Lpc3600Enable(void)
{
rLPCSEL&=~(7);
rLPCSEL|=(7); // 240320,Enable LPC3600
}
/**************************************************************
320×240 8Bpp TFT LCD 电源控制引脚使能
**************************************************************/
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
}
/**************************************************************
320×240 8Bpp TFT LCD 颜色初始化
**************************************************************/
void Lcd_Palette_Init(void)
{
unsigned char cdata, p_red, p_green, p_blue;
U32 *palette;
//#define PALETTE 0x4d000400 //Palette start address
palette=(U32 *)PALETTE;
*palette++=0; //black
for(cdata=1;cdata<255;cdata++)
{
p_red=(cdata & 0xe0);
p_green=(cdata & 0x1c);
p_blue=(cdata & 0x03);
*palette++=((U32)((p_red<<8)|(p_green<<6)|(p_blue<<3)));
}
*palette=0xffff; //white
}
/**************************************************************
320×240 16Bpp TFT LCD移动观察窗口
**************************************************************/
void Lcd_MoveViewPort(int vx,int vy)
{
U32 addr;
SET_IF();
#if (LCD_XSIZE_TFT_240320<32)
while((rLCDCON1>>18)<=1); // if x<32
#else
while((rLCDCON1>>18)==0); // if x>32
#endif
addr=(U32)LCD_BUFER+(vx*2)+vy*(SCR_XSIZE_TFT_240320*2);
rLCDSADDR1= ( (addr>>22)<<21 ) | M5D(addr>>1);
rLCDSADDR2= M5D(((addr+(SCR_XSIZE_TFT_240320*LCD_YSIZE_TFT_240320*2))>>1));
CLR_IF();
}
/**************************************************************
320×240 16Bpp TFT LCD移动观察窗口
**************************************************************/
void MoveViewPort(void)
{
int vx=0,vy=0,vd=1;
Uart_Printf("\n*Move the LCD view windos:\n");
Uart_Printf(" press 8 is up\n");
Uart_Printf(" press 2 is down\n");
Uart_Printf(" press 4 is left\n");
Uart_Printf(" press 6 is right\n");
Uart_Printf(" press Enter to exit!\n");
while(1)
{
switch(Uart_Getch())
{
case '8':
if(vy>=vd)vy-=vd;
break;
case '4':
if(vx>=vd)vx-=vd;
break;
case '6':
if(vx<=(SCR_XSIZE_TFT_240320-LCD_XSIZE_TFT_240320-vd))vx+=vd;
break;
case '2':
if(vy<=(SCR_YSIZE_TFT_240320-LCD_YSIZE_TFT_240320-vd))vy+=vd;
break;
case '\r':
return;
default:
break;
}
Uart_Printf("vx=%3d,vy=%3d\n",vx,vy);
Lcd_MoveViewPort(vx,vy);
}
}
/**************************************************************
320×240 16Bpp TFT LCD单个象素的显示数据输出
**************************************************************/
void PutPixel(U32 x,U32 y,U32 c)
{
if ( (x < SCR_XSIZE_TFT_240320) && (y < SCR_YSIZE_TFT_240320) )
LCD_BUFER[(y)][(x)] = c;
}
/**************************************************************
320×240 16Bpp TFT LCD全屏填充特定颜色单元或清屏
**************************************************************/
void Lcd_ClearScr(U16 c)
{
unsigned int x,y ;
for( y = 0 ; y < SCR_YSIZE_TFT_240320 ; y++ )
{
for( x = 0 ; x < SCR_XSIZE_TFT_240320 ; 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
**************************************************************/
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,j;
if(x2 < x1)
{
i = x1;
x1 = x2;
x2 = i;
}
if(y2 < y1)
{
i = y1;
y1 = y2;
y2 = i;
}
for(i = y1; i < y2; i++)
{
//Glib_Line(x1,i,x2,i,color);
for(j = x1; j < x2; j++)
{
LCD_BUFER[i][j] = 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;
U32 c;
int p = 0;
for( y = 0 ; y < l ; y++ )
{
for( x = 0 ; x < h ; x++ )
{
c = (bmp[p+1] << 0) | (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 ;
}
}
}
/**************************************************************
**************************************************************/
void Test_Lcd_Tft_16Bpp_320_240(void)
{
//unsigned int x,y ;
//U32 c;
#define DELAY_TIME 36000
#ifdef DEBUG
Uart_Printf("\nTest LTVS350QV (TFT LCD 16BPP)!\n");
#endif
Lcd_Port_Init();
Lcd_Init();
samsung_LTV350QV_init();
Lcd_EnvidOnOff(ENVID_on); //turn on video
Lcd_ClearScr(0x0000); //fill all screen with some color
Glib_FilledRectangle(10,10,310,40,0xF800); //RED
Glib_FilledRectangle(10,50,310,80,0x07E0); //GRE
Glib_FilledRectangle(10,90,310,120,0x001F); //BLU
/*
Glib_FilledRectangle( 12, 12, 308, 228, 0x0000); //fill a Rectangle with some color
Glib_FilledRectangle( 24, 24, 296, 216, 0x001f); //fill a Rectangle with some color
Glib_FilledRectangle( 89, 24, 231, 216, 0x07e0); //fill a Rectangle with some color
Glib_FilledRectangle(153, 24, 167, 216, 0xf800); //fill a Rectangle with some color
Glib_FilledRectangle( 70, 80, 250, 160, 0xf7e0); //fill a Rectangle with some color
Glib_FilledRectangle( 90, 100, 230, 140, 0x07ff); //fill a Rectangle with some color
Glib_FilledRectangle(110, 120, 110, 120, 0xf81f); //fill a Rectangle with some color
*/
#ifdef DEBUG
Uart_Printf( "\nrGPBCON=0x%x\n", rGPBCON );
Uart_Printf( "\trGPBUP=0x%x\n", rGPBUP );
Uart_Printf( "rGPCCON=0x%x\n", rGPCCON );
Uart_Printf( "\trGPCUP=0x%x\n", rGPCUP );
Uart_Printf( "rGPDCON=0x%x\n", rGPDCON );
Uart_Printf( "\trGPDUP=0x%x\n", rGPDUP );
Uart_Printf( "rGPGCON=0x%x\n", rGPGCON );
Uart_Printf( "\trGPGUP=0x%x\n\n", rGPGUP );
Uart_Printf( "rLCDCON1=0x%x\n", rLCDCON1 );
Uart_Printf( "rLCDCON2=0x%x\n", rLCDCON2 );
Uart_Printf( "rLCDCON3=0x%x\n", rLCDCON3 );
Uart_Printf( "rLCDCON4=0x%x\n", rLCDCON4 );
Uart_Printf( "rLCDCON5=0x%x\n\n", rLCDCON5 );
Uart_Printf( "rLCDSADDR1=0x%x\n", rLCDSADDR1 );
Uart_Printf( "rLCDSADDR2=0x%x\n", rLCDSADDR2 );
Uart_Printf( "rLCDSADDR3=0x%x\n\n", rLCDSADDR3 );
Uart_Printf( "rLCDINTMSK=0x%x\n", rLCDINTMSK );
Uart_Printf( "rLPCSEL=0x%x\n", rLPCSEL );
Uart_Printf( "rTPAL=0x%x\n\n", rTPAL );
#endif
//Paint_Bmp( 0,0,320,240, GPS_320_240_16bpp ) ;
}
//*************************************************************
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