00001 /* lcd.c -- LCD Control Panel Operations 00002 Copyright 2000 Free Software Foundation, Inc. 00003 Written by Stephane Carrez (stcarrez@worldnet.fr) 00004 00005 This file is part of GEL. 00006 00007 GEL is free software; you can redistribute it and/or modify 00008 it under the terms of the GNU General Public License as published by 00009 the Free Software Foundation; either version 2, or (at your option) 00010 any later version. 00011 00012 GEL is distributed in the hope that it will be useful, 00013 but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 GNU General Public License for more details. 00016 00017 You should have received a copy of the GNU General Public License 00018 along with GEL; see the file COPYING. If not, write to 00019 the Free Software Foundation, 59 Temple Place - Suite 330, 00020 Boston, MA 02111-1307, USA. */ 00021 00022 #ifndef _GEL_LCD_H 00023 #define _GEL_LCD_H 00024 00025 #include <sys/param.h> 00026 00027 #ifndef LCD_MAX_COLS 00028 # define LCD_MAX_COLS 16 00029 #endif 00030 00031 #ifndef LCD_MAX_LINES 00032 # define LCD_MAX_LINES 2 00033 #endif 00034 00035 00037 typedef unsigned char lcd_col_t; 00038 00040 typedef unsigned char lcd_line_t; 00041 00045 extern void lcd_reset (void); 00046 00050 extern void lcd_home (void); 00051 00055 extern void lcd_clear (void); 00056 00057 extern void lcd_blink (int mode); 00058 00059 extern void lcd_cursor (int mode); 00060 00061 extern void lcd_display (int mode); 00062 00063 extern void lcd_shift (int direction); 00064 00071 extern void lcd_print (const char *msg); 00072 00073 extern void lcd_putchar (unsigned char c); 00074 00080 extern void lcd_goto (lcd_col_t col, lcd_line_t line); 00081 00087 extern void lcd_print_at (lcd_col_t col, lcd_line_t line, const char *msg); 00088 00089 #endif