ep7312_lcd.h

ARM&linux 嵌入式系统 开发程序样例

/*
 *	ep7312_lcd.h	---	Primary header file of 
 *						LCD Device Driver with Framebuffer
 *						for MGUI
 *	(C)opyright 2004 Bit 920 Labs
 *
 *	Written by: Ye Nan <[e-mail]>
 *	Created on: Sat. Mar 6 22:03:45 GMT +8:00 2004
 */

#ifndef __GAL_DRIVER_EP7312_H
#define __GAL_DRIVER_EP7312_H

#include "../gal.h"
#include "../../include/sysdef.h"

/* LCD颜色类型
 * COLOR[0-3]  : 红
 * COLOR[4-7]  : 绿
 * COLOR[8-11] : 蓝
 * COLOR[12-15]: 保留半字节
 */
typedef unsigned short  COLOR;

// 保存屏幕缓冲区结构
struct save_struct
{
	int save_w;
	int save_h;

	unsigned char * save_buf;
};

// LCD显示命令的参数结构
struct lcd_display
{
	int x1, y1;						/* 第一个点的x, y坐标 */
	int x2, y2;						/* 第二个点的x, y坐标 */

	unsigned char codes[32];		/* 字符点阵数据 */

	COLOR color;					/* 显示颜色 */
};

// LCD屏幕命令的参数结构
struct lcd_screen
{
	int x1, y1;						/* 第一个点的x, y坐标 */
	int x2, y2;						/* 第二个点的x, y坐标 */

	struct save_struct * buffer;	/* 保存屏幕缓冲区 */
};

#define DEV_LCD				0

#define LCD_Clear			0
#define LCD_Draw_Pixel		1
#define LCD_Draw_VLine		2
#define LCD_Draw_HLine		3
#define LCD_Draw_Rectangle	4
#define LCD_Write_EN		10
#define LCD_Write_CN		11
#define LCD_Save_SCR		12
#define LCD_Load_SCR		13
#define LCD_Release_SCR		14

#define SCREEN_WIDTH		240
#define SCREEN_HEIGHT		320
#define SCREEN_BPP		12

#define RED		0x000f
#define ORANGE	0x007f
#define YELLOW	0x00ff
#define GREEN	0x00f0
#define CYAN	0x0ff0
#define BLUE	0x0f00
#define PURPLE	0x0f07
#define WHITE	0x0fff
#define BLACK	0x0000
#define GRAY	0x0777

// Define color convertion macro
#define _RGB2COLOR12(r, g, b)		(((((r) >> 4) << 8) | (((g) >> 4) << 4) | ((b) >> 4)) & 0x00ffffff)

#define _COLOR24_RED(color)			((color) & 0xff)
#define _COLOR24_GREEN(color)		(((color) >> 8) & 0xff)
#define _COLOR24_BLUE(color)		(((color) >> 16) & 0xff)

#define _COLOR24_12(color)			_RGB2COLOR12(_COLOR24_RED(color), _COLOR24_GREEN(color), _COLOR24_BLUE(color))

void Assert_Device(int DevType);

void OpenLCD(char * devFile);
void CloseLCD();

// Interface functions
int InitLCD_EP7312(GFX * gfx);
void ReleaseLCD_EP7312(GFX * gfx);

#endif	// __GAL_DRIVER_EP7312_H