Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef _LINUX_I8042_H
2#define _LINUX_I8042_H
3
4/*
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 */
9
10#include <linux/types.h>
11
12/*
13 * Standard commands.
14 */
15
16#define I8042_CMD_CTL_RCTR 0x0120
17#define I8042_CMD_CTL_WCTR 0x1060
18#define I8042_CMD_CTL_TEST 0x01aa
19
20#define I8042_CMD_KBD_DISABLE 0x00ad
21#define I8042_CMD_KBD_ENABLE 0x00ae
22#define I8042_CMD_KBD_TEST 0x01ab
23#define I8042_CMD_KBD_LOOP 0x11d2
24
25#define I8042_CMD_AUX_DISABLE 0x00a7
26#define I8042_CMD_AUX_ENABLE 0x00a8
27#define I8042_CMD_AUX_TEST 0x01a9
28#define I8042_CMD_AUX_SEND 0x10d4
29#define I8042_CMD_AUX_LOOP 0x11d3
30
31#define I8042_CMD_MUX_PFX 0x0090
32#define I8042_CMD_MUX_SEND 0x1090
33
34struct serio;
35
36#if defined(CONFIG_SERIO_I8042) || defined(CONFIG_SERIO_I8042_MODULE)
37
38void i8042_lock_chip(void);
39void i8042_unlock_chip(void);
40int i8042_command(unsigned char *param, int command);
41bool i8042_check_port_owner(const struct serio *);
42int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
43 struct serio *serio));
44int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
45 struct serio *serio));
46
47#else
48
49static inline void i8042_lock_chip(void)
50{
51}
52
53static inline void i8042_unlock_chip(void)
54{
55}
56
57static inline int i8042_command(unsigned char *param, int command)
58{
59 return -ENODEV;
60}
61
62static inline bool i8042_check_port_owner(const struct serio *serio)
63{
64 return false;
65}
66
67static inline int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
68 struct serio *serio))
69{
70 return -ENODEV;
71}
72
73static inline int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
74 struct serio *serio))
75{
76 return -ENODEV;
77}
78
79#endif
80
81#endif