/**************************************************************
The initial and control for 320×240 16Bpp TFT LCD----3.5寸豎屏
**************************************************************/

#include <string.h>
#include "def.h"
#include "2410addr.h"
#include "2410lib.h"

#define MVAL		(13)
#define MVAL_USED 	(0)		//0=each frame   1=rate by MVAL
#define INVVDEN		(1)		//0=normal       1=inverted
#define BSWP		(0)		//Byte swap control
#define HWSWP		(1)		//Half word swap control

#define M5D(n) ((n) & 0x1fffff)	// To get lower 21bits

//TFT 240320
#define LCD_XSIZE_TFT_240320 	(240)	
#define LCD_YSIZE_TFT_240320 	(320)

//TFT 240320
#define SCR_XSIZE_TFT_240320 	(640)
#define SCR_YSIZE_TFT_240320 	(480)

//TFT240320
#define HOZVAL_TFT_240320	(LCD_XSIZE_TFT_240320-1)
#define LINEVAL_TFT_240320	(LCD_YSIZE_TFT_240320-1)

//Timing parameter for LCD
#define VBPD_240320		(1)		//垂直同步信號的后肩
#define VFPD_240320		(2)		//垂直同步信號的前肩
#define VSPW_240320		(1)		//垂直同步信號的脈寬

#define HBPD_240320		(49)		//水平同步信號的后肩
#define HFPD_240320		(15)		//水平同步信號的前肩
#define HSPW_240320		(13)		//水平同步信號的脈寬

#define CLKVAL_TFT_240320	(4)	

#define RED 0xf800

static void Lcd_Init(void);
static void Lcd_EnvidOnOff(int onoff);
void PutPixel(U16 x0,U16 y0,U16 c);
static void Lcd_ClearScr(U16 c);
volatile static unsigned short LCD_BUFER[SCR_YSIZE_TFT_240320][SCR_XSIZE_TFT_240320];

/**************************************************************
320×240 16Bpp TFT LCD數據和控制端口初始化
**************************************************************/
static void Lcd_Port_Init(void)
{
    rGPCUP = 0x0; // enable Pull-up register
    rGPCCON = 0xaaaa56a9; //Initialize VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND 

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

/**************************************************************
320×240 16Bpp TFT LCD功能模塊初始化
**************************************************************/
static void Lcd_Init(void)
{
	//CLKVAL=5;MMODE=0;PNRMODE=11:11 = TFT LCD panel
	//BPPMODE=1100=16 bpp for TFT;ENVID0=Disable the video output and the LCD control signal.
	rLCDCON1=(CLKVAL_TFT_240320<<8)|(MVAL_USED<<7)|(3<<5)|(12<<1)|0;
    //VBPD=2;LINEVAL=319;VFPD=2;VSPW=4 
	rLCDCON2=(VBPD_240320<<24)|(LINEVAL_TFT_240320<<14)|(VFPD_240320<<6)|(VSPW_240320);
	//HBPD=8;HOZVAL=239;HFPD=8
	rLCDCON3=(HBPD_240320<<19)|(HOZVAL_TFT_240320<<8)|(HFPD_240320);
	//MVAL=13;HSPW=6
	rLCDCON4=(MVAL<<8)|(HSPW_240320);
    rLCDCON5=(1<<11)|(0<<9)|(0<<8)|(0<<6)|(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_240320*LCD_YSIZE_TFT_240320*2))>>1 );
	//OFFSIZE=640-240=400;PAGEWIDTH=240
	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視頻和控制信號輸出或者停止，1開啟視頻輸出
**************************************************************/
static void Lcd_EnvidOnOff(int onoff)
{
    if(onoff==1)
	{rLCDCON1|=1; // ENVID=ON
    rCLKCON |= (1<<5);
    }
    else
	{rLCDCON1 =rLCDCON1 & 0x3fffe; // ENVID Off
	rCLKCON &= ~(1<<5);
	}
}


/**************************************************************
320×240 16Bpp TFT LCD單個象素的顯示數據輸出
**************************************************************/
void PutPixel(U16 x0,U16 y0,U16 c)
{
	if ( (x0 < SCR_XSIZE_TFT_240320) && (y0 < SCR_YSIZE_TFT_240320) )
	LCD_BUFER[(y0)][(x0)] = c;
}

/**************************************************************
320×240 16Bpp TFT LCD全屏填充特定顏色單元或清屏
**************************************************************/
static 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;
    	}
    }
}

/**************************************************************/

void Test_Lcd_Tft_240X320( void )
{
	Uart_Printf("\nTest 240*320 TFT LCD !\n");
	
    Lcd_Port_Init();
    Lcd_Init();
    Lcd_EnvidOnOff(1);		//turn on vedio
	Lcd_ClearScr(0x00);		//fill all screen with black
    
    while(1)
    {
       Lcd_disp_hz16(8,50,RED, "廣東省嵌入式軟件公共技術中心");
       Lcd_disp_hz16(60,100,RED, "廣東廣州科學城");
    }
    while(1);
}