lcd.c

44B0+8019系统

#include "..\44blibs\lcd.h"
#include "..\inc\bmp.h"
#include "..\inc\44b.h"
#include <stdarg.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include "sysloader.h"

//VGA 显示40*30    一屏可显示15行，30列英文字符
#define VGA_X_MAX	40
#define VGA_Y_MAX	15

unsigned int VGA_X = 0; // 0 ~ 39
unsigned int VGA_Y = 0; // 0 ~ 14
unsigned int DC[240][320/4]; //显示缓冲1
unsigned int HWDC[240][320/4];   //显示缓冲2

//*****************************************************************
// 功能描述:初始化LCD控制器
//*****************************************************************
void Lcd_Init (void *pDC)
{     
	int i, j;
	int time = 10000*2;
	//INT32U  *plcdbu;
	INT32U *plcdbu = (unsigned int*)pDC;
	rLCDCON1=(0x0)|(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) | ( ((unsigned int)plcdbu>>22)<<21 ) | M5D((unsigned int)plcdbu>>1);
	    // 256-color, LCDBANK, LCDBASEU
	rLCDSADDR2= M5D((((unsigned int)plcdbu+(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=(0x1)|(2<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_COLOR<<12);
	rPDATE=0xfe;
	
}

void disselet (void *pDC)
{     
	INT32U *plcdbu = (unsigned int*)pDC;
	rLCDSADDR1= (0x3<<27) | ( ((unsigned int)plcdbu>>22)<<21 ) | M5D((unsigned int)plcdbu>>1);
	rLCDSADDR2= M5D((((unsigned int)plcdbu+(SCR_XSIZE*LCD_YSIZE))>>1)) | (MVAL<<21);
}
void San_speed (INT8U speed)
{
	if (speed == height)
	{
	  rLCDCON1=rLCDCON1&0x00fff;
	  rLCDCON1=rLCDCON1|((CLKVAL_COLOR)<<12);
	}
	else if(speed == low)
	{
	  rLCDCON1=rLCDCON1&0x00fff;
	  rLCDCON1=rLCDCON1|((CLKVAL_COLOR+4)<<12);
	}
}
//*****************************************************************
//** 函数名:void Lcd_Clr(void)
//** 输 入: backdrop
//** 输 出: 
//** 功能描述:以背景色（backdrop）清槠