displaylib.c

Samsung S3C2443 Test program source code

	Write_LDI_LTS222(0x18,0xF7);  //  PARTIAL 2 DISPLAY AREA STARTING REGISTER 1 

	// delay about 40ms
	delayLoop(LCD_DELAY_1MS*40);					

	Write_LDI_LTS222(0x1B,0x07);  // org
//	Write_LDI_LTS222(0x1B,0x01);  // 90 rotate
//	Write_LDI_LTS222(0x1B,0x02);  // 90 rotate
//	Write_LDI_LTS222(0x1B,0x03);  // 90 rotate


	// delay about 40ms
	delayLoop(LCD_DELAY_1MS*40); 				

	Write_LDI_LTS222(0x1F,0x5a);  // org
//	Write_LDI_LTS222(0x1F,0x5E);  // 90 rotate

	Write_LDI_LTS222(0x20,0x54);  //  org, PARTIAL 1 DISPLAY AREA RASTER-ROW NUMBER REGISTER 1
//	Write_LDI_LTS222(0x20,0x5F);  //  90 rotate, PARTIAL 1 DISPLAY AREA RASTER-ROW NUMBER REGISTER 1

	Write_LDI_LTS222(0x1E,0xc1);  // 

	// delay about 40ms
	delayLoop(LCD_DELAY_1MS*40);					

	Write_LDI_LTS222(0x21,0x00);  //  PARTIAL 1 DISPLAY AREA RASTER-ROW NUMBER REGISTER 2 
	Write_LDI_LTS222(0x3B,0x01);  // 

	// delay about 40ms
	delayLoop(LCD_DELAY_1MS*40);					

	Write_LDI_LTS222(0x00,0x20);  //  CONTROL REGISTER 1
	Write_LDI_LTS222(0x02,0x01);  //  RGB INTERFACE REGISTER

	// delay about 10ms
	delayLoop(LCD_DELAY_1MS*10);					
	
//	Reg16_OPCLK_DIV = 0x0201;	 			// 6.4

}

void Write_LDI_LTS222(int address, int data)
{
    int     j;
	unsigned char DELAY=20;

	if(debug_continue)
	{
		Temp_forDebug(address,data);		
	}
	
	LCD_DEN_Hi; 		//	EN = High					CS high
	LCD_DCLK_Hi;							//	SCL High
	LCD_DSERI_Lo;							//	Data Low


	delayLoop(DELAY);

	LCD_DEN_Lo; 		//	EN = Low				CS Low
	delayLoop(DELAY);

	LCD_DCLK_Lo;							//	SCL Low

	delayLoop(DELAY);

	for (j = 7; j >= 0; j--)
	{

		if ((address >> j) & 0x0001)	// DATA HIGH or LOW
		{
			LCD_DSERI_Hi;		
		}
		else
		{
			LCD_DSERI_Lo;
		}

		delayLoop(DELAY);

		LCD_DCLK_Hi;			// CLOCK = High
		delayLoop(DELAY);

		if(j != 0)
		{
			LCD_DCLK_Lo;
			delayLoop(DELAY);			// CLOCK = Low
		}
	}

	LCD_DSERI_Lo;							// Data Low
	delayLoop(DELAY);

	LCD_DEN_Hi; 		//	EN = High
	delayLoop(DELAY);

	LCD_DEN_Lo; 		//	EN = Low
	delayLoop(DELAY);

	
	LCD_DCLK_Lo;
	delayLoop(DELAY);			// CLOCK = Low

	for (j = 7; j >= 0; j--)
	{

		if ((data >> j) & 0x0001)	// DATA HIGH or LOW
		{
			LCD_DSERI_Hi;	
		}
		else
		{
			LCD_DSERI_Lo;
		}
		
		delayLoop(DELAY);

		LCD_DCLK_Hi;			// CLOCK = High
		delayLoop(DELAY);

		if(j != 0)
		{
			LCD_DCLK_Lo;
			delayLoop(DELAY);			// CLOCK = Low
		}
	}

	LCD_DEN_Hi; 				// EN = High
	delayLoop(DELAY);

}

#define LTV350 (TRUE)

void InitLDI_LTV350(void)
{	
	// LCD module reset
	rGPBDAT |= (1<<(LCD_nRESET));
	rGPBDAT &= ~(1<<(LCD_nRESET)); // goes to LOW
	// delay about 5ms
	delayLoop(LCD_DELAY_1MS*10);	
	rGPBDAT |= (1<<(LCD_nRESET));  // goes to HIGH


	//debug_continue = TRUE;
	debug_continue = FALSE;

	//SET_CONFIG_PORT( spi1)
	rGPLCON &= ~(((3<<(LCD_DEN_BIT*2))) | ((3<<(LCD_DCLK_BIT*2))) | ((3<<(LCD_DSERI_BIT*2))));	
	rGPLCON |= (((1<<(LCD_DEN_BIT*2))) | ((1<<(LCD_DCLK_BIT*2))) | ((1<<(LCD_DSERI_BIT*2))));
	// pull-up pull-down disable
	rGPLUDP &= ~(((3<<(LCD_DEN_BIT*2))) | ((3<<(LCD_DCLK_BIT*2))) | ((3<<(LCD_DSERI_BIT*2))));	
	rGPLUDP |= (((2<<(LCD_DEN_BIT*2))) | ((2<<(LCD_DCLK_BIT*2))) | ((2<<(LCD_DSERI_BIT*2))));
	
	// delay about 5ms
	delayLoop(LCD_DELAY_1MS*10);	
		
	LCD_DEN_Hi;
	LCD_DCLK_Hi;
	LCD_DSERI_Hi;	

	///////////////////////////////////////////////////////////////////
	// Init_Lcd_Function
	//////////////////////////////////////////////////////////////////
#if LTV350
	Write_LDI_LTV350(0x01,0x001d);	
	Write_LDI_LTV350(0x02,0x0000);    
    Write_LDI_LTV350(0x03,0x0000);    
    Write_LDI_LTV350(0x04,0x0000);
    Write_LDI_LTV350(0x05,0x50a3);
    Write_LDI_LTV350(0x06,0x0000);
    Write_LDI_LTV350(0x07,0x0000);
    Write_LDI_LTV350(0x08,0x0000);
   	Write_LDI_LTV350(0x09,0x0000);
   	Write_LDI_LTV350(0x0a,0x0000);
   	Write_LDI_LTV350(0x10,0x0000);
   	Write_LDI_LTV350(0x11,0x0000);
   	Write_LDI_LTV350(0x12,0x0000);
   	Write_LDI_LTV350(0x13,0x0000);
   	Write_LDI_LTV350(0x14,0x0000);
   	Write_LDI_LTV350(0x15,0x0000);
   	Write_LDI_LTV350(0x16,0x0000);
   	Write_LDI_LTV350(0x17,0x0000);
   	Write_LDI_LTV350(0x18,0x0000);
   	Write_LDI_LTV350(0x19,0x0000);
#else
	Write_LDI_LTV350(0x09,0x0000);
#endif
	///////////////////////////////////////////////////////////////////
	// Power On Reset Display off State
	//////////////////////////////////////////////////////////////////
	//Write_LDI_LTV350(0x09,0x0000);

	// delay about 10ms
	delayLoop(LCD_DELAY_1MS*10);
	
	///////////////////////////////////////////////////////////////////
	// Power Setting Function 1
	//////////////////////////////////////////////////////////////////
#if LTV350
	Write_LDI_LTV350(0x09,0x4055);
	Write_LDI_LTV350(0x0a,0x0000);
#else
	Write_LDI_LTV350(0x09,0x4055);
	Write_LDI_LTV350(0x0a,0x2000);
#endif

	// delay about 10ms
	delayLoop(LCD_DELAY_1MS*10);
	
	/////////////////////////////////////////////////////////////////////
	// Power Setting 2
	/////////////////////////////////////////////////////////////////////
#if LTV350
	Write_LDI_LTV350(0x0a,0x2000);
#else
	Write_LDI_LTV350(0x09,0x4055);
#endif

	// delay about 50ms
	delayLoop(LCD_DELAY_1MS*50);
	
	///////////////////////////////////////////////////////////////////
	// Instruction Setting
	///////////////////////////////////////////////////////////////////
#if LTV350
	Write_LDI_LTV350(0x01,0x409d);
	Write_LDI_LTV350(0x02,0x0204);
	Write_LDI_LTV350(0x03,0x2100);
	Write_LDI_LTV350(0x04,0x1000);
	Write_LDI_LTV350(0x05,0x5003);
	Write_LDI_LTV350(0x06,0x0009);	//vbp
	Write_LDI_LTV350(0x07,0x000f);	//hbp
	Write_LDI_LTV350(0x08,0x0800);
	Write_LDI_LTV350(0x10,0x0000);
	Write_LDI_LTV350(0x11,0x0000);
	Write_LDI_LTV350(0x12,0x000f);
	Write_LDI_LTV350(0x13,0x1f00);
	Write_LDI_LTV350(0x14,0x0000);
	Write_LDI_LTV350(0x15,0x0000);
	Write_LDI_LTV350(0x16,0x0000);
	Write_LDI_LTV350(0x17,0x0000);
	Write_LDI_LTV350(0x18,0x0000);
	Write_LDI_LTV350(0x19,0x0000);
#else
	Write_LDI_LTV350(0x01,0x409d);
	Write_LDI_LTV350(0x02,0x0204);
	Write_LDI_LTV350(0x03,0x0100);
	Write_LDI_LTV350(0x04,0x3000);
	Write_LDI_LTV350(0x05,0x4003);
	Write_LDI_LTV350(0x06,0x0009);	//vbp
	Write_LDI_LTV350(0x07,0x000f);	//hbp
	Write_LDI_LTV350(0x08,0x0c00);
	Write_LDI_LTV350(0x10,0x0103);
	Write_LDI_LTV350(0x11,0x0301);
	Write_LDI_LTV350(0x12,0x1f0f);
	Write_LDI_LTV350(0x13,0x1f0f);
	Write_LDI_LTV350(0x14,0x0707);
	Write_LDI_LTV350(0x15,0x0307);
	Write_LDI_LTV350(0x16,0x0707);
	Write_LDI_LTV350(0x17,0x0000);
	Write_LDI_LTV350(0x18,0x0004);
	Write_LDI_LTV350(0x19,0x0000);
#endif
	
	
	// delay about 2 frames
	delayLoop(LCD_DELAY_1MS*50);
	

	///////////////////////////////////////////////////////////////////
	// Display On Sequence
	///////////////////////////////////////////////////////////////////
#if LTV350
	Write_LDI_LTV350(0x09,0x4a55);
	Write_LDI_LTV350(0x0a,0x2000);	
#else
	Write_LDI_LTV350(0x09,0x4a55);
	Write_LDI_LTV350(0x05,0x5003);	

#endif
 
}

void Write_LDI_LTV350(int address, int data)
{
 	uint8	dev_id_code=0x1D;
    int     j;
	unsigned char DELAY=50;
		
	if(debug_continue)
	{
		Temp_forDebug(address,data);		
	}
	
	LCD_DEN_Hi; 		//	EN = High					CS high
	LCD_DCLK_Hi;							//	SCL High
	LCD_DSERI_Hi;							//	Data Low

	delayLoop(DELAY);

	LCD_DEN_Lo; 		//	EN = Low				CS Low
	delayLoop(DELAY);
	
	for (j = 5; j >= 0; j--)
	{	
		LCD_DCLK_Lo;							//	SCL Low

		if ((dev_id_code >> j) & 0x0001)	// DATA HIGH or LOW
		{
			LCD_DSERI_Hi;		
		}
		else
		{
			LCD_DSERI_Lo;
		}

		delayLoop(DELAY);

		LCD_DCLK_Hi;			// CLOCK = High
		delayLoop(DELAY);

	}
	
	// RS = "0" : index data
	LCD_DCLK_Lo;			// CLOCK = Low
	LCD_DSERI_Lo;
	delayLoop(DELAY);
	LCD_DCLK_Hi;			// CLOCK = High
	delayLoop(DELAY);

	// Write
	LCD_DCLK_Lo;			// CLOCK = Low
	LCD_DSERI_Lo;
	delayLoop(DELAY);
	LCD_DCLK_Hi;			// CLOCK = High
	delayLoop(DELAY);

	for (j = 15; j >= 0; j--)
	{
		LCD_DCLK_Lo;							//	SCL Low

		if ((address >> j) & 0x0001)	// DATA HIGH or LOW
		{
			LCD_DSERI_Hi;		
		}
		else
		{
			LCD_DSERI_Lo;
		}

		delayLoop(DELAY);

		LCD_DCLK_Hi;			// CLOCK = High
		delayLoop(DELAY);

	}
	LCD_DSERI_Hi;
	delayLoop(DELAY);
	
	LCD_DEN_Hi; 				// EN = High
	delayLoop(DELAY*10);

	LCD_DEN_Lo; 		//	EN = Low				CS Low
	delayLoop(DELAY);
	
	for (j = 5; j >= 0; j--)
	{	
		LCD_DCLK_Lo;							//	SCL Low

		if ((dev_id_code >> j) & 0x0001)	// DATA HIGH or LOW
		{
			LCD_DSERI_Hi;		
		}
		else
		{
			LCD_DSERI_Lo;
		}

		delayLoop(DELAY);

		LCD_DCLK_Hi;			// CLOCK = High
		delayLoop(DELAY);

	}
	
	// RS = "1" instruction data
	LCD_DCLK_Lo;			// CLOCK = Low
	LCD_DSERI_Hi;
	delayLoop(DELAY);
	LCD_DCLK_Hi;			// CLOCK = High
	delayLoop(DELAY);

	// Write
	LCD_DCLK_Lo;			// CLOCK = Low
	LCD_DSERI_Lo;
	delayLoop(DELAY);
	LCD_DCLK_Hi;			// CLOCK = High
	delayLoop(DELAY);

	for (j = 15; j >= 0; j--)
	{
		LCD_DCLK_Lo;							//	SCL Low

		if ((data >> j) & 0x0001)	// DATA HIGH or LOW
		{
			LCD_DSERI_Hi;		
		}
		else
		{
			LCD_DSERI_Lo;
		}

		delayLoop(DELAY);

		LCD_DCLK_Hi;			// CLOCK = High
		delayLoop(DELAY);

	}
	
	LCD_DEN_Hi; 				// EN = High
	delayLoop(DELAY);

}
//
//========================================================================================


//========================================================================================
// library function for FIMV test
//
void Setup_RgbIf( void)
{
	uint32 LcdBppMode;

	rMISCCR |= (1<<28);		// select LCD controller for TFT lcd controller

	SetLcdPort();
	Init_LDI();

	LcdWindowOnOff(LCD_WIN_ALL,LCD_OFF);
	LcdEnvidOnOff(LCD_OFF);

	printf("\nSelect Display BPP mode\n\n     0: RGB 16bpp (565)     1: RGB 24bpp (888)\n");

	LcdBppMode = GetIntNum();
	if((LcdBppMode<0)||(LcdBppMode>1))
		LcdBppMode = 0;

	switch(LcdBppMode)
	{
	case 0 :	LcdBppMode = WINCONx_16BPP_565;
				break;
	case 1 :	LcdBppMode = WINCONx_24BPP_888;
				break;
	}

	Basic_Display_Setting(LCD_WIN_0,LCD_BUF_0,LcdBppMode,lcd_horizon_value,lcd_line_value);

	if (LcdBppMode == WINCONx_16BPP_565)
		*WINCONx_Reg_Addr[LCD_WIN_0] |= (1<<WINCON_SWAP_S);

	Display_Start(LCD_WIN_0);

}

//
//========================================================================================

//========================================================================================
// library function for Power Test
//
void Test_Lcd_QVGA(void)
{
	uint32 i,j,k;
	
	SetLcdPort();	
	Init_LDI();
	
	LcdWindowOnOff(LCD_WIN_ALL,LCD_OFF);
	LcdEnvidOnOff(LCD_OFF);
	
	Basic_Display_Setting(LCD_WIN_1,LCD_BUF_0,WINCONx_16BPP_565,lcd_horizon_value,lcd_line_value);	

	if(lcd_type==LCD_MODULE_LTS222)
	{
		for(j=0;j<screen_height;j++)
			for(i=0;i<screen_width;i++)
				PutPixel(i,j,snail16bpp[k++]);
	}
	else if(lcd_type==LCD_MODULE_LTV350)
	{
		for(j=0;j<screen_height;j++)
			for(i=0;i<screen_width;i++);
			//	PutPixel(i,j,prayer16bpp[k++]);
	}
	
	
	Display_Start(LCD_WIN_1);
}
//
//========================================================================================