]> git.ipfire.org Git - people/ms/u-boot.git/blob - include/i8042.h
rename CFG_ macros to CONFIG_SYS
[people/ms/u-boot.git] / include / i8042.h
1 /*
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 #ifdef __I386__
30 #include <common.h>
31 #include <asm/io.h>
32 #define in8(p) inb(p)
33 #define out8(p,v) outb(v,p)
34 #endif
35
36 /* defines */
37
38 #define I8042_DATA_REG (CONFIG_SYS_ISA_IO + 0x0060) /* keyboard i/o buffer */
39 #define I8042_STATUS_REG (CONFIG_SYS_ISA_IO + 0x0064) /* keyboard status read */
40 #define I8042_COMMAND_REG (CONFIG_SYS_ISA_IO + 0x0064) /* keyboard ctrl write */
41
42 #define KBD_US 0 /* default US layout */
43 #define KBD_GER 1 /* german layout */
44
45 #define KBD_TIMEOUT 1000 /* 1 sec */
46 #define KBD_RESET_TRIES 3
47
48 #define AS 0 /* normal character index */
49 #define SH 1 /* shift index */
50 #define CN 2 /* control index */
51 #define NM 3 /* numeric lock index */
52 #define AK 4 /* right alt key */
53 #define CP 5 /* capslock index */
54 #define ST 6 /* stop output index */
55 #define EX 7 /* extended code index */
56 #define ES 8 /* escape and extended code index */
57
58 #define NORMAL 0x0000 /* normal key */
59 #define STP 0x0001 /* scroll lock stop output*/
60 #define NUM 0x0002 /* numeric lock */
61 #define CAPS 0x0004 /* capslock */
62 #define SHIFT 0x0008 /* shift */
63 #define CTRL 0x0010 /* control*/
64 #define EXT 0x0020 /* extended scan code 0xe0 */
65 #define ESC 0x0040 /* escape key press */
66 #define E1 0x0080 /* extended scan code 0xe1 */
67 #define BRK 0x0100 /* make break flag for keyboard */
68 #define ALT 0x0200 /* right alt */
69
70 /* exports */
71
72 int i8042_kbd_init(void);
73 int i8042_tstc(void);
74 int i8042_getc(void);
75
76 #endif /* _I8042_H_ */