📄 lcd_vga_800_600.c
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/**************************************************************
The initial and control for 800×600 16Bpp TFT LCD----VGA
**************************************************************/
#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#define CLKVAL_TFT_800600 (0)
//FCLK = 180MHz, HCLK = PCLK = 90MHz
//VCLK = HCLK / [(CLKVAL+1) * 2] ( CLKVAL >= 0 )
//VCLK = 45MHz // 34MHz < VCLK < 40MHz
#define MVAL (13)
#define BSWP (0) //Byte swap control
#define HWSWP (1) //Half word swap control
#define M5D(n) ((n) & 0x1fffff) // To get lower 21bits
//TFT 800600
#define LCD_XSIZE_TFT_800600 (800)
#define LCD_YSIZE_TFT_800600 (600)
//TFT 800600
#define SCR_XSIZE_TFT_800600 (800)
#define SCR_YSIZE_TFT_800600 (600)
//TFT800600
#define HOZVAL_TFT_800600 (LCD_XSIZE_TFT_800600-1)
#define LINEVAL_TFT_800600 (LCD_YSIZE_TFT_800600-1)
//以下参数只针对VGA
//Timing paramete for LCD
#define VBPD_800600 (22) //垂直同步信号的后肩
#define VFPD_800600 (36) //垂直同步信号的前肩
#define VSPW_800600 (5) //垂直同步信号的脉宽
#define HBPD_800600 (63) //水平同步信号的后肩
#define HFPD_800600 (55) //水平同步信号的前肩
#define HSPW_800600 (119) //水平同步信号的脉宽
//extern unsigned char girl3_800_600[]; //宽800，高600
volatile static unsigned short LCD_BUFER[SCR_YSIZE_TFT_800600][SCR_XSIZE_TFT_800600];
/**************************************************************
800×600 TFT LCD数据和控制端口初始化
**************************************************************/
static void Lcd_Port_Init( void )
{
rGPCUP = 0xffffffff; // Disable Pull-up register
rGPCCON = 0xaaaa02a8; //Initialize VD[7:0],VM,VFRAME,VLINE,VCLK
rGPDUP = 0xffffffff; // Disable Pull-up register
rGPDCON = 0xaaaaaaaa; //Initialize VD[15:8]
}
/**************************************************************
800×600 TFT LCD功能模块初始化
**************************************************************/
static void Lcd_Init( void )
{
rLCDCON1 = ( CLKVAL_TFT_800600 << 8 ) | ( 1 << 7 ) | ( 3 << 5 ) | ( 12 << 1 ) | 0;
// TFT LCD panel,16bpp TFT,ENVID=off
rLCDCON2 = ( VBPD_800600 << 24 ) | ( LINEVAL_TFT_800600 << 14 ) | ( VFPD_800600 << 6 ) | ( VSPW_800600 );
rLCDCON3 = ( HBPD_800600 << 19 ) | ( HOZVAL_TFT_800600 << 8 ) | ( HFPD_800600 );
rLCDCON4 = ( MVAL << 8 ) | ( HSPW_800600 );
rLCDCON5 = ( 1 << 11 ) | ( 1 << 10 ) | ( 0 << 9 ) | ( 0 << 8 ) | ( 1 << 3 ) | ( BSWP << 1 ) | ( HWSWP ); //FRM5:6:5,HSYNC and VSYNC are inverted
rLCDSADDR1 = ( ( ( U32 ) LCD_BUFER >> 22 ) << 21 ) | M5D( ( U32 ) LCD_BUFER >> 1 );
rLCDSADDR2 = M5D( ( ( U32 ) LCD_BUFER + ( SCR_XSIZE_TFT_800600 * LCD_YSIZE_TFT_800600 * 2 ) ) >> 1 );
rLCDSADDR3 = ( ( ( SCR_XSIZE_TFT_800600 - LCD_XSIZE_TFT_800600 ) / 1 ) << 11 ) | ( LCD_XSIZE_TFT_800600 / 1 );
rLCDINTMSK |= ( 3 ); // MASK LCD Sub Interrupt
rTCONSEL &= ~( ( 1 << 4 ) | 1 ); // Disable LCC3600, 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
**************************************************************/
static void Lcd_EnvidOnOff( int onoff )
{
if ( onoff == 1 )
rLCDCON1 |= 1; // ENVID=ON
else
rLCDCON1 = rLCDCON1 & 0x3fffe; // ENVID Off
}
/**************************************************************
320×240 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
}
/**************************************************************
800×600 TFT LCD移动观察窗口
**************************************************************/
static void Lcd_MoveViewPort( int vx , int vy )
{
U32 addr;
SET_IF();
#if (LCD_XSIZE_TFT_800600<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_800600 * 2 );
rLCDSADDR1 = ( ( addr >> 22 ) << 21 ) | M5D( addr >> 1 );
rLCDSADDR2 = M5D( ( ( addr + ( SCR_XSIZE_TFT_800600 * LCD_YSIZE_TFT_800600 * 2 ) ) >> 1 ) );
CLR_IF();
}
/**************************************************************
800×600 TFT LCD移动观察窗口
**************************************************************/
static 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_800600 - LCD_XSIZE_TFT_800600 - vd ) )
vx += vd;
break;
case '2':
if ( vy <= ( SCR_YSIZE_TFT_800600 - LCD_YSIZE_TFT_800600 - vd ) )
vy += vd;
break;
case '\r':
return;
default:
break;
}
Uart_Printf( "vx=%3d,vy=%3d\n" , vx , vy );
Lcd_MoveViewPort( vx , vy );
}
}
/**************************************************************
800×600 TFT LCD单个象素的显示数据输出
**************************************************************/
static void PutPixel( U32 x , U32 y , U16 c )
{
if ( x < SCR_XSIZE_TFT_800600 && y < SCR_YSIZE_TFT_800600 )
LCD_BUFER[( y )][( x )] = c;
}
/**************************************************************
800×600 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_800600 ; y++ )
{
for ( x = 0 ; x < SCR_XSIZE_TFT_800600 ; 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
**************************************************************/
static void Glib_Line( int x1 , int y1 , int x2 , int y2 , U16 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 , U16 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
**************************************************************/
static void Glib_FilledRectangle( int x1 , int y1 , int x2 , int y2 , U16 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
**************************************************************/
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_800600 ) && ( ( y0 + y ) < SCR_YSIZE_TFT_800600 ) )
LCD_BUFER[y0 + y][x0 + x] = c ;
p = p + 2 ;
}
}
}
/**************************************************************
**************************************************************/
void Test_Lcd_VGA_800_600( void )
{
Uart_Printf( "\nTest TFT LCD 800×600(VGA)!\n" );
Lcd_Port_Init();
Lcd_Init();
Lcd_EnvidOnOff( 1 ); //turn on vedio
Lcd_ClearScr( ( 0x00 << 11 ) | ( 0x00 << 5 ) | ( 0x00 ) ) ; //clear screen
Uart_Printf( "\nLCD clear screen is finished! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
Lcd_ClearScr( ( 0x1f << 11 ) | ( 0x3f << 5 ) | ( 0x1f ) ) ; //clear screen
Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
/*
Lcd_ClearScr( (0x00<<11) | (0x00<<5) | (0x1f) ) ; //clear screen
Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
Lcd_ClearScr( (0x00<<11) | (0x3f<<5) | (0x00) ) ; //clear screen
Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
Lcd_ClearScr( (0x1f<<11) | (0x00<<5) | (0x00) ) ; //clear screen
Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
Lcd_ClearScr( (0x00<<11) | (0x3f<<5) | (0x1f) ) ; //clear screen
Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
Lcd_ClearScr( (0x1f<<11) | (0x00<<5) | (0x1f) ) ; //clear screen
Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
Lcd_ClearScr( (0x1f<<11) | (0x3f<<5) | (0x00) ) ; //clear screen
Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
*/
Lcd_ClearScr( 0xffff ); //fill all screen with some color
#define LCD_BLANK 30
#define C_UP ( LCD_XSIZE_TFT_800600 - LCD_BLANK*2 )
#define C_RIGHT ( LCD_XSIZE_TFT_800600 - LCD_BLANK*2 )
#define V_BLACK ( ( LCD_YSIZE_TFT_800600 - LCD_BLANK*4 ) / 6 )
Glib_FilledRectangle( LCD_BLANK , LCD_BLANK , ( LCD_XSIZE_TFT_800600 - LCD_BLANK ) ,
( LCD_YSIZE_TFT_800600 - LCD_BLANK ) , 0x0000 ); //fill a Rectangle with some color
Glib_FilledRectangle( ( LCD_BLANK * 2 ) , ( LCD_BLANK * 2 + V_BLACK * 0 ) , ( C_RIGHT ) ,
( LCD_BLANK * 2 + V_BLACK * 1 ) , 0x001f ); //fill a Rectangle with some color
Glib_FilledRectangle( ( LCD_BLANK * 2 ) , ( LCD_BLANK * 2 + V_BLACK * 1 ) , ( C_RIGHT ) ,
( LCD_BLANK * 2 + V_BLACK * 2 ) , 0x07e0 ); //fill a Rectangle with some color
Glib_FilledRectangle( ( LCD_BLANK * 2 ) , ( LCD_BLANK * 2 + V_BLACK * 2 ) , ( C_RIGHT ) ,
( LCD_BLANK * 2 + V_BLACK * 3 ) , 0xf800 ); //fill a Rectangle with some color
Glib_FilledRectangle( ( LCD_BLANK * 2 ) , ( LCD_BLANK * 2 + V_BLACK * 3 ) , ( C_RIGHT ) ,
( LCD_BLANK * 2 + V_BLACK * 4 ) , 0xffe0 ); //fill a Rectangle with some color
Glib_FilledRectangle( ( LCD_BLANK * 2 ) , ( LCD_BLANK * 2 + V_BLACK * 4 ) , ( C_RIGHT ) ,
( LCD_BLANK * 2 + V_BLACK * 5 ) , 0xf81f ); //fill a Rectangle with some color
Glib_FilledRectangle( ( LCD_BLANK * 2 ) , ( LCD_BLANK * 2 + V_BLACK * 5 ) , ( C_RIGHT ) ,
( LCD_BLANK * 2 + V_BLACK * 6 ) , 0x07ff ); //fill a Rectangle with some color
Uart_Printf( "LCD color test, please look! press any key to continue!\n" );
Uart_Getch() ; //wait uart input
/*
Paint_Bmp(0,0,800,600, girl0_800_600); //paint a bmp
Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
Uart_Getch() ; //wait uart input
Paint_Bmp(0,0,800,600, girl1_800_600); //paint a bmp
Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
Uart_Getch() ; //wait uart input
Paint_Bmp(0,0,800,600, flower1_800_600); //paint a bmp
Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
Uart_Getch() ; //wait uart input
Paint_Bmp(0,0,800,600, girl2_800_600); //paint a bmp
Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
Uart_Getch() ; //wait uart input
*/
//Paint_Bmp( 0 , 0 , 800 , 600 , girl3_800_600 ); //paint a bmp
//Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
//Uart_Getch() ; //wait uart input
Lcd_EnvidOnOff( 0 ); //turn off vedio
Lcd_Tft_LTS350Q1_PE1_Init() ; //
}
//*************************************************************
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