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wdenk1df49e22002-09-17 21:37:55 +00001/*
2 * (C) Copyright 2002 ELTEC Elektronik AG
3 * Frank Gottschling <fgottschling@eltec.de>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/* i8042.h - Intel 8042 keyboard driver header */
25
26#ifndef _I8042_H_
27#define _I8042_H_
28
29/* defines */
30
31#define I8042_DATA_REG (CFG_ISA_IO + 0x0060) /* keyboard i/o buffer */
32#define I8042_STATUS_REG (CFG_ISA_IO + 0x0064) /* keyboard status read */
33#define I8042_COMMAND_REG (CFG_ISA_IO + 0x0064) /* keyboard ctrl write */
34
35#define KBD_US 0 /* default US layout */
36#define KBD_GER 1 /* german layout */
37
38#define KBD_TIMEOUT 1000 /* 1 sec */
39#define KBD_RESET_TRIES 3
40
41#define AS 0 /* normal character index */
42#define SH 1 /* shift index */
43#define CN 2 /* control index */
44#define NM 3 /* numeric lock index */
45#define AK 4 /* right alt key */
46#define CP 5 /* capslock index */
47#define ST 6 /* stop output index */
48#define EX 7 /* extended code index */
49#define ES 8 /* escape and extended code index */
50
51#define NORMAL 0x0000 /* normal key */
52#define STP 0x0001 /* scroll lock stop output*/
53#define NUM 0x0002 /* numeric lock */
54#define CAPS 0x0004 /* capslock */
55#define SHIFT 0x0008 /* shift */
56#define CTRL 0x0010 /* control*/
57#define EXT 0x0020 /* extended scan code 0xe0 */
58#define ESC 0x0040 /* escape key press */
59#define E1 0x0080 /* extended scan code 0xe1 */
60#define BRK 0x0100 /* make break flag for keyboard */
61#define ALT 0x0200 /* right alt */
62
63/* exports */
64
65int i8042_kbd_init(void);
66int i8042_tstc(void);
67int i8042_getc(void);
68
69#endif /* _I8042_H_ */