lcd.h

(绝对原创

/*
 * LED, LCD and Button panel driver for Cobalt
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1996, 1997 by Andrew Bose
 *
 * Linux kernel version history:
 *       March 2001: Ported from 2.0.34  by Liam Davies
 *
 */

#ifndef __DOT_LCD_H__
#define __DOT_LCD_H__



/****************************************************/
/***	select your need lcd module here.         ***/

#define USE_LM6063A
//#define USE_LM12232C

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

/* for lm6063a */
#ifdef USE_LM6063A

#define ROW_NUM		8
#define COL_NUM		128
#define DATA_BITS	8

#endif

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

/* for lm12232c */
#ifdef USE_LM12232C

#define ROW_NUM		4
#define COL_NUM		122
#define DATA_BITS	8
#endif

/*************************************************(*/

#define LCD_FRAME_BUF_SIZE	( (ROW_NUM)*(COL_NUM) / (DATA_BITS) )

struct lcd_dev{
	unsigned char x0;
        unsigned char y0;
	
	//for bitmap mode use only
        unsigned char x_cnt;
	unsigned char y_cnt;
	
	//for chars mode use only
	unsigned char font_w;
	unsigned char font_h; //must 8x
	unsigned char len;

	unsigned char buf[LCD_FRAME_BUF_SIZE];	
};

struct lcd_debug{
        unsigned char x0;
        unsigned char y0;
        unsigned char x_cnt;
	unsigned char y_cnt;
	unsigned char bmp_index;
};
/*
struct lcd_status{
	unsigned char on_off;
	unsigned char lr_ward;
};
*/

#define LCD_DRIVER	"Dot LCD Driver v0.90"

//#define LCD		"lcd: "

/*
 * Function command codes for io_ctl.
 */

#define LCD_RESET		0		
#define LCD_ON			1
#define LCD_OFF			2
#define LCD_CLEAR		3
#define LCD_FULL		4
#define LCD_DRAW_CHARS		5
#define LCD_DRAW_BMP		6
#define LCD_LIGHTER		7
#define LCD_DARKER		8
#define LCD_SET_CONTRAST	9
#define LCD_DISP_LEFT		10
#define LCD_DISP_RIGHT		11
#define LCD_READ		12	//GC3210 board not support now.
#define LCD_SELF_TEST		100	//for lcd self test use only.

#define LCD_CHARS_MODE		0
#define LCD_BMP_MODE		1

#endif