lcd_320240.c

本程序能够在没有操作系统下可以测试LCD的驱动

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

#include <string.h>
#include "def.h"
#include "2410addr.h"
#include "2410lib.h"
#include "LCD_LTV350QV_FOE.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 320240
#define LCD_XSIZE_TFT_320240 	(320)	
#define LCD_YSIZE_TFT_320240 	(240)
#define SCR_XSIZE_TFT_320240 	(320)
#define SCR_YSIZE_TFT_320240 	(240)
#define HOZVAL_TFT_320240	(LCD_XSIZE_TFT_320240-1)
#define LINEVAL_TFT_320240	(LCD_YSIZE_TFT_320240-1)

#define LTV350QV_POE	0x1d	        //device ID
#define LTV350QV_VBPD	5		//垂直同步信号的后肩
#define LTV350QV_VFPD	4		//垂直同步信号的前肩
#define LTV350QV_VSPW	3		//垂直同步信号的脉宽

#define LTV350QV_HBPD	12		//水平同步信号的后肩
#define LTV350QV_HFPD	20		//水平同步信号的前肩
#define LTV350QV_HSPW	18		//水平同步信号的脉宽

//simulate the SPI timing order.
#define LTV350QV_CS        8
#define LTV350QV_SCL      9
#define LTV350QV_SDI      10
#define LTV350QV_RST      0

//micro for LTV350QV_POE
#define CS_H    rGPCDAT |=1<<LTV350QV_CS 
#define CS_L    rGPCDAT &=~(1<<LTV350QV_CS)
#define SCLK_H  rGPCDAT |=1<<LTV350QV_SCL
#define SCLK_L  rGPCDAT &=~(1<<LTV350QV_SCL)
#define SDI_H   rGPCDAT |=1<<LTV350QV_SDI
#define SDI_L   rGPCDAT &=~(1<<LTV350QV_SDI)
#define RST_H   rGPDDAT |=1<<LTV350QV_RST
#define RST_L   rGPDDAT &=~(1<<LTV350QV_RST)

#define SDI_STATE  rGPCDAT & (1<<LTV350QV_SDI)

typedef struct _LTV350qv_spi_data_{
	U8   Device_ID;                     //ID of the device
	U16 Index;                            //index of register 
	U16 Structure;                      //structure to be writed
}LTV350QV_SPI_Data;

#define CLKVAL_TFT_320240	(6)	
//FCLK=180MHz,HCLK=90MHz,VCLK=6.5MHz

#define LCD_BLANK		16
#define C_UP		( LCD_XSIZE_TFT_320240 - LCD_BLANK*2 )
#define C_RIGHT		( LCD_XSIZE_TFT_320240 - LCD_BLANK*2 )
#define V_BLACK		( ( LCD_YSIZE_TFT_320240 - LCD_BLANK*4 ) / 6 )


static void Lcd_Init(void);
static void Lcd_EnvidOnOff(int onoff);
//static void Lcd_Lpc3600Enable(void);
//static void Lcd_PowerEnable(int invpwren,int pwren);
static void MoveViewPort(void);
static void Lcd_MoveViewPort(int vx,int vy);
static void PutPixel(U32 x,U32 y,U32 c);
//static void Glib_Rectangle(int x1,int y1,int x2,int y2,int color);
static void Glib_FilledRectangle(int x1,int y1,int x2,int y2,int color);
static void Glib_Line(int x1,int y1,int x2,int y2,int color);
static void Lcd_ClearScr(U16 c);
static void Paint_Bmp(int x0,int y0,int h,int l,unsigned char bmp[]);

void LTV350QV_Powen_OFF(void);
void LTV350QV_Power_ON(void);
void LTV350QV_Write(U16 index, U16 regdata);
void LTV350QV_Short_Delay(U8 time);
void LTV350QV_Reset(void);

//extern unsigned char gImage_girl[];	//宽240，高320
//extern unsigned char gImage_flower[];
extern unsigned char flower_320_240[];	

//extern unsigned char flower_240_320[];

volatile static unsigned short LCD_BUFER[SCR_YSIZE_TFT_320240][SCR_XSIZE_TFT_320240];

/*****************************************
*  *for LTV350QV_POE TFT LCD
*****************************************/
//short delay for about 90*time ns 
void LTV350QV_Short_Delay(U8 time)
{
	unsigned int i;
	for(i=0;i<time*80;i++) ;                 //about 360 ns
}

//****************************************
void LTV350QV_Reset(void)
{
	RST_L;
	Delay(100);
	RST_H;
	Delay(1);
}

void LTV350QV_Register_Write(LTV350QV_SPI_Data regdata)
{
	U8 i,temp1;
	U16 temp2;
	U32 temp3;

	//write index
	temp1=regdata.Device_ID<<2 | 0<<1 | 0<<0;          //register index
	temp2=regdata.Index;
	temp3=(temp1<<24) | (temp2<<8);

	CS_L;
	LTV350QV_Short_Delay(1);
	for(i=0;i<24;i++)
		{
			SCLK_L;
			if(temp3 & (1<<(31-i)) )              //if is H
				SDI_H;
			else 
				SDI_L;
			LTV350QV_Short_Delay(1);      //setup time
			SCLK_H;
			LTV350QV_Short_Delay(1);     //hold time
		}
	CS_H;
	
	LTV350QV_Short_Delay(5);
	
	//write instruction
	temp1=regdata.Device_ID<<2 | 1<<1 | 0<<0;       //instruction
	temp2=regdata.Structure;
	temp3=(temp1<<24) | (temp2<<8);
	
	CS_L;
	LTV350QV_Short_Delay(1);
	for(i=0;i<24;i++)
		{
			SCLK_L;
			if(temp3 & (1<<(31-i)) )             //if is H
				SDI_H;
			else
				SDI_L;
			LTV350QV_Short_Delay(1);
			SCLK_H;
			LTV350QV_Short_Delay(1);
		}
	CS_H;
}

U16 LTV350QV_Register_Read(U8 index)
{
	U8 i,temp1;
	U16 temp2;
	U32 temp3;

	//write index
	temp1=LTV350QV_POE<<2 | 0<<1 | 1<<0;          //register index
	temp2=index;
	temp3=(temp1<<24) | (temp2<<8);

	CS_L;
	LTV350QV_Short_Delay(1);
	for(i=0;i<24;i++)
		{
			SCLK_L;
			if(temp3 & (1<<(31-i)) )              //if is H
				SDI_H;
			else 
				SDI_L;
			LTV350QV_Short_Delay(1);      //setup time
			SCLK_H;
			LTV350QV_Short_Delay(1);     //hold time
		}
	CS_H;
	
	LTV350QV_Short_Delay(5);
	
	//read instruction
	temp1=(LTV350QV_POE<<2 | 1<<1 | 1<<0);       //instruction
	temp3=temp1<<24;
	
	CS_L;
	LTV350QV_Short_Delay(1);
	for(i=0;i<8;i++)                                          //send device ID
		{
			SCLK_L;
			if(temp3 & (1<<(31-i)) )              //if is H
				SDI_H;
			else 
				SDI_L;
			LTV350QV_Short_Delay(1);      //setup time
			SCLK_H;
			LTV350QV_Short_Delay(1);     //hold time
		}

	temp2=0;
	rGPCCON &=~(1<<20);      //SDI input
	for(i=0;i<16;i++)                                         //read data from the register
		{
			SCLK_L;
			LTV350QV_Short_Delay(1);
			SCLK_H;
			LTV350QV_Short_Delay(1);
			if(SDI_STATE)                     //if H
				temp2 |=1<<(15-i);
			else                                   //if L
				;
			LTV350QV_Short_Delay(1);
		}
	CS_H;

	return temp2;
}

/****************************************
*  *
****************************************/
void LTV350QV_Write(U16 index, U16 regdata)
{
	LTV350QV_SPI_Data WriteData;
	
	WriteData.Device_ID=LTV350QV_POE;  //0x1d
	WriteData.Index=index;                     //
	WriteData.Structure=regdata;

	LTV350QV_Register_Write(WriteData);
}

/****************************************
*  *power ON sequence
****************************************/
void LTV350QV_Power_ON(void)
{	
 	LTV350QV_Write(9, 0x0000);
 	Delay(150);
 	LTV350QV_Write(9, 0x4000);
 	LTV350QV_Write(10, 0x2000);
 	LTV350QV_Write(9, 0x4055);
 	Delay(550);
 	LTV350QV_Write(1, 0x409d);
 	LTV350QV_Write(2, 0x0284);
	 LTV350QV_Write(3, 0x0100);
 	LTV350QV_Write(4, 0x3000);
 	LTV350QV_Write(5, 0x4003);
 	LTV350QV_Write(6, 0x000a);
 	LTV350QV_Write(7, 0x0021);
 	LTV350QV_Write(8, 0x0c00);
 	LTV350QV_Write(10, 0x0103);
	 LTV350QV_Write(11, 0x0301);
 	LTV350QV_Write(12, 0x1f0f);
 	LTV350QV_Write(13, 0x1f0f);
 	LTV350QV_Write(14, 0x0707);
 	LTV350QV_Write(15, 0x0307);
 	LTV350QV_Write(16, 0x0707);
 	LTV350QV_Write(17, 0x0000);
 	LTV350QV_Write(18, 0x0004);
 	LTV350QV_Write(19, 0x0000);

 	Delay(200);
 	LTV350QV_Write(9, 0x4a55);
 	LTV350QV_Write(5, 0x5003);
}

/**********************************
*  *power OFF sequence
**********************************/
void LTV350QV_Powen_OFF(void)
{

	 /* GON -> 0, POC -> 0 */
	 LTV350QV_Write(9, 0x4055);
	 /* DSC -> 0 */
	 LTV350QV_Write(5, 0x4003);
 	/* VCOMG -> 0 */
 	LTV350QV_Write(10, 0x0000);

 	Delay(20);

	 /* AP[2:0] -> 000 */
	 LTV350QV_Write(9, 0x4000);
}
//*************************************************************



/**************************************************************
320×240 16Bpp TFT LCD数据和控制端口初始化
**************************************************************/
static void Lcd_Port_Init(void)
{
    rGPCUP = 0xffffffff; // enable Pull-up register
    rGPCCON = 0xaa9556a9; //Initialize VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND 
    rGPDUP=0xffffffff;
    rGPDCON=0xaaaaaaaa;
    CS_H;
    SCLK_H;
    SDI_H;

Uart_Printf("\nLcd_Port_Init OK !\n");
}

/**************************************************************
320×240 16Bpp TFT LCD功能模块初始化
**************************************************************/
static void Lcd_Init(void)
{
	rLCDCON1=(CLKVAL_TFT_320240<<8)|(MVAL_USED<<7)|(3<<5)|(12<<1)|0;
    	// TFT LCD panel,16bpp TFT,ENVID=off
	rLCDCON2=(LTV350QV_VBPD<<24)|(LINEVAL_TFT_320240<<14)|(LTV350QV_VFPD<<6)|(LTV350QV_VSPW);
	rLCDCON3=(LTV350QV_HBPD<<19)|(HOZVAL_TFT_320240<<8)|(LTV350QV_HFPD);
	rLCDCON4=(MVAL<<8)|(LTV350QV_HSPW);
	rLCDCON5=(1<<11)|(1<<10)|(1<<9)|(1<<8)|(0<<6)|(BSWP<<1)|(HWSWP);	//FRM5:6:5,VCLK,HSYNC and VSYNC are inverted
	rLCDSADDR1=(((U32)LCD_BUFER>>22)<<21)|M5D((U32)LCD_BUFER>>1);
	rLCDSADDR2=M5D( ((U32)LCD_BUFER+(SCR_XSIZE_TFT_320240*LCD_YSIZE_TFT_320240*2))>>1 );
	rLCDSADDR3=(((SCR_XSIZE_TFT_320240-LCD_XSIZE_TFT_320240)/1)<<11)|(LCD_XSIZE_TFT_320240/1);