49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/*
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* Base driver module for Hitachi HD44780 based LCD displays. This is
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* a modular driver that allows support for alternative HD44780
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* designs to be added in a flexible and maintainable manner.
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*
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* This file is released under the GNU General Public License. Refer to the
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* COPYING file distributed with this package.
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*
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* Copyright (c) 1999, 1995 Benjamin Tse <blt@Comports.com>
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* 1999 Andrew McMeikan <andrewm@engineer.com>
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* 1998 Richard Rognlie <rrognlie@gamerz.net>
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*
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1997 Matthias Prinke <m.prinke@trashcan.mcnet.de>
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*/
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#ifndef HD44780_H
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#define HD44780_H
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// Maximum sizes of the keypad
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// DO NOT CHANGE THESE 2 VALUES, unless you change the functions too
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#define KEYPAD_MAXX 5
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#define KEYPAD_MAXY 11
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extern char have_keypad; // non-zero if the keypad code is activated
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extern char have_backlight; // non-zero if we can control the backlight
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extern char extIF; // non-zero if we should control > 2 LCDs
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extern char delayBus; // non-zero if axtra delays for the bus speed
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// should be inserted.
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int HD44780_init (struct lcd_logical_driver *driver, char *args);
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/* The following methods can all be hidden. They are used through function ptrs
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void HD44780_close();
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void HD44780_flush();
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void HD44780_flush_box(int lft, int top, int rgt, int bot);
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int HD44780_contrast(int contrast);
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void HD44780_backlight(int on);
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void HD44780_init_vbar();
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void HD44780_init_hbar();
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void HD44780_vbar(int x, int len);
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void HD44780_hbar(int x, int y, int len);
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void HD44780_init_num();
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void HD44780_num(int x, int num);
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void HD44780_set_char(int n, char *dat);
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void HD44780_icon(int which, char dest);
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void HD44780_draw_frame(char *dat);
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*/
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#endif
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