/****************************************************************
Function name: TFT_Init()
Inputs		 : TFT initialization parameters
Outputs		 : None
Description  : Initialize the TFT LCD
****************************************************************/
void TFT_Init(void)
{
	
	PLL_Init();	
	TFT_CmdWrite(0x10);     //SYSR   bit[4:3] color  bit[2:1]=  MPU interface
	TFT_DataWrite(0x0C);    //65k
	
	TFT_CmdWrite(0x04);     //PCLK
	TFT_DataWrite(0x81);	
	
	delay_ms(1);

	//Horizontal set
	TFT_CmdWrite(0x14);     //HDWR//Horizontal Display Width Setting Bit[6:0]
	TFT_DataWrite(0x63);    //Horizontal display width(pixels) = (HDWR + 1)*8	
	TFT_CmdWrite(0x15);     //Horizontal Non-Display Period Fine Tuning Option Register (HNDFTR)
	TFT_DataWrite(0x00);	//Horizontal Non-Display Period Fine Tuning(HNDFT) [3:0]	
	TFT_CmdWrite(0x16);		//HNDR//Horizontal Non-Display Period Bit[4:0]
	TFT_DataWrite(0x03);	//Horizontal Non-Display Period (pixels) = (HNDR + 1)*8	
	TFT_CmdWrite(0x17);		//HSTR//HSYNC Start Position[4:0]
	TFT_DataWrite(0x03);	//HSYNC Start Position(PCLK) = (HSTR + 1)*8	
	TFT_CmdWrite(0x18);		//HPWR//HSYNC Polarity ,The period width of HSYNC.
	TFT_DataWrite(0x0B);	//HSYNC Width [4:0]   HSYNC Pulse width(PCLK) = (HPWR + 1)*8
	
	//Vertical set
	TFT_CmdWrite(0x19);		//VDHR0 //Vertical Display Height Bit [7:0]
	TFT_DataWrite(0xDF);	        //Vertical pixels = VDHR + 1
	TFT_CmdWrite(0x1a);		//VDHR1 //Vertical Display Height Bit [8]
	TFT_DataWrite(0x01);	        //Vertical pixels = VDHR + 1
	TFT_CmdWrite(0x1b);		//VNDR0 //Vertical Non-Display Period Bit [7:0]
	TFT_DataWrite(0x20);	//Vertical Non-Display area = (VNDR + 1)
	TFT_CmdWrite(0x1c);		//VNDR1 //Vertical Non-Display Period Bit [8]
	TFT_DataWrite(0x00);	//Vertical Non-Display area = (VNDR + 1)
	TFT_CmdWrite(0x1d);		//VSTR0 //VSYNC Start Position[7:0]
	TFT_DataWrite(0x16);	//VSYNC Start Position(PCLK) = (VSTR + 1)
	TFT_CmdWrite(0x1e);		//VSTR1 //VSYNC Start Position[8]
	TFT_DataWrite(0x00);	//VSYNC Start Position(PCLK) = (VSTR + 1)
	TFT_CmdWrite(0x1f);		//VPWR //VSYNC Polarity ,VSYNC Pulse Width[6:0]
	TFT_DataWrite(0x01);	//VSYNC Pulse Width(PCLK) = (VPWR + 1)	
	
	TFT_CmdWrite(0xc7);	
	TFT_DataWrite(0x01);
	
	TFT_CmdWrite(0x01);
	TFT_DataWrite(0x80);	
	
	g_LcdHeight = LCD_70_HEIGHT;
	g_LcdWidth = LCD_70_WIDTH;
	
	RA8875_SetDirection(0);
	
	TFT_CmdWrite(0x41);
	TFT_DataWrite(0x00);
	
	Active_Window(0x00,g_LcdWidth,0x00,g_LcdWidth);	
	
	TFT_CmdWrite(0x8a);//PWM setting
	TFT_DataWrite(0x80);
	TFT_CmdWrite(0x8a);//PWM setting
	TFT_DataWrite(0x81);//open PWM
	TFT_CmdWrite(0x8b);//Backlight brightness setting
	TFT_DataWrite(0xff);//Brightness parameter 0xff-0x00

	delay_ms(500);
	
	TFT_Write_Direction(0X01,0X80);//display on
	
}
/****************************************************************
Function name: PLL_Init()
Inputs		 : Initialize PLL
Outputs		 : None
Description  : Initialize PLL of TFT LCD
****************************************************************/
void PLL_Init(void)
{
	TFT_CmdWrite(0x88);	
	TFT_DataWrite(0x0C);
	delay_ms(1);
	TFT_CmdWrite(0x89);	
	TFT_DataWrite(0x02);
	delay_ms(1);		
}
/****************************************************************
Function name: TFT_Write_Direction()
Inputs		 : command and Data
Outputs		 : None
Description  : Write command and parameter
****************************************************************/
void TFT_Write_Direction(uint8_t Cmd,uint8_t Data)
{
	TFT_CmdWrite(Cmd);
	TFT_DataWrite(Data);
}

/****************************************************************
Function name: TFT_CmdWrite()
Inputs		 : command and Data
Outputs		 : None
Description  : Write command and parameter
****************************************************************/
void TFT_CmdWrite(uint8_t Cmnd_u8)
{
	SPI_Select_CS(true);
	SPI_Perform_Write(0x80);
	SPI_Perform_Write(Cmnd_u8);
	SPI_Select_CS(false);	
}
/****************************************************************
Function name: TFT_DataWrite()
Inputs		 : Data
Outputs		 : None
Description  : 
****************************************************************/
void TFT_DataWrite(uint8_t Data_u8)
{
	SPI_Select_CS(true);
	SPI_Perform_Write(0x00);
	SPI_Perform_Write(Data_u8);
	SPI_Select_CS(false);	
}

/****************************************************************
Function name: Active_Window()
Inputs		 : Data
Outputs		 : None
Description  :
****************************************************************/
void Active_Window(uint16_t XL,uint16_t XR ,uint16_t YL ,uint16_t YR)
{
	uint8_t temp;
	//setting active window X
	temp=XL;
	TFT_CmdWrite(0x30);//HSAW0
	TFT_DataWrite(temp);
	temp=XL>>8;
	TFT_CmdWrite(0x31);//HSAW1
	TFT_DataWrite(temp);
	
	//setting active window Y
	temp= XR;
	TFT_CmdWrite(0x34);//VSAW0
	TFT_DataWrite(temp);
	temp=temp>>8;
	TFT_CmdWrite(0x35);//VSAW1
	TFT_DataWrite(temp);

	temp=YL;
	TFT_CmdWrite(0x32);//HEAW0
	TFT_DataWrite(temp);
	temp=YL>>8;
	TFT_CmdWrite(0x33);//HEAW1
	TFT_DataWrite(temp);

	temp= YR;
	TFT_CmdWrite(0x36);//VEAW0
	TFT_DataWrite(temp);
	temp=temp>>8;
	TFT_CmdWrite(0x37);//VEAW1
	TFT_DataWrite(temp);
}
/*
*********************************************************************************************************
*	Function name: RA8875_SetDirection
*	Inputs: 
*	
*********************************************************************************************************
*/
void RA8875_SetDirection(uint8_t _ucDir)
{
	uint8_t reg20H = 0;
	
	s_reg_40H = 0x01;
	
	if (_ucDir == 0)
	{
		s_reg_40H = 0x01;
		reg20H = (0 << 3) | (0 << 2);
	}
	else if (_ucDir == 1)
	{
		s_reg_40H = 0x01;	
		reg20H = (1 << 3) | (1 << 2);
	}
	else if (_ucDir == 2)
	{
		s_reg_40H = 0x09;
		reg20H = (0 << 3) | (1 << 2);
	}
	else if (_ucDir == 3)
	{
		s_reg_40H = 0x09;
		reg20H = (1 << 3) | (0 << 2);
	}
	
	TFT_CmdWrite(0x40);
	TFT_DataWrite(s_reg_40H);
	
	TFT_CmdWrite(0x20);
	TFT_DataWrite(reg20H);
	

	if (_ucDir > 1)	
	{
		uint16_t temp;
		
		if (g_LcdHeight < g_LcdWidth)
		{
			temp = g_LcdHeight;
			g_LcdHeight = g_LcdWidth;
			g_LcdWidth = temp;
		}
	}		
	else	
	{
		uint16_t temp;
		
		if (g_LcdHeight > g_LcdWidth)
		{
			temp = g_LcdHeight;
			g_LcdHeight = g_LcdWidth;
			g_LcdWidth = temp;
		}
	}
}

//////////////Background color settings
void Text_Background_Color1(uint16_t b_color)
{
	
	TFT_CmdWrite(0x60);//BGCR0
	TFT_DataWrite((uint8_t)(b_color>>11));
	
	TFT_CmdWrite(0x61);//BGCR0
	TFT_DataWrite((uint8_t)(b_color>>5));
	
	TFT_CmdWrite(0x62);//BGCR0
	TFT_DataWrite((uint8_t)(b_color));
}