tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _I8042_H
2#define _I8042_H
3
4
5/*
6 * Copyright (c) 1999-2002 Vojtech Pavlik
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published by
10 * the Free Software Foundation.
11 */
12
13/*
14 * Arch-dependent inline functions and defines.
15 */
16
17#if defined(CONFIG_MACH_JAZZ)
18#include "i8042-jazzio.h"
19#elif defined(CONFIG_SGI_HAS_I8042)
20#include "i8042-ip22io.h"
21#elif defined(CONFIG_SNI_RM)
22#include "i8042-snirm.h"
23#elif defined(CONFIG_PPC)
24#include "i8042-ppcio.h"
25#elif defined(CONFIG_SPARC)
26#include "i8042-sparcio.h"
27#elif defined(CONFIG_X86) || defined(CONFIG_IA64)
28#include "i8042-x86ia64io.h"
29#elif defined(CONFIG_UNICORE32)
30#include "i8042-unicore32io.h"
31#else
32#include "i8042-io.h"
33#endif
34
35/*
36 * This is in 50us units, the time we wait for the i8042 to react. This
37 * has to be long enough for the i8042 itself to timeout on sending a byte
38 * to a non-existent mouse.
39 */
40
41#define I8042_CTL_TIMEOUT 10000
42
43/*
44 * Return codes.
45 */
46
47#define I8042_RET_CTL_TEST 0x55
48
49/*
50 * Expected maximum internal i8042 buffer size. This is used for flushing
51 * the i8042 buffers.
52 */
53
54#define I8042_BUFFER_SIZE 16
55
56/*
57 * Number of AUX ports on controllers supporting active multiplexing
58 * specification
59 */
60
61#define I8042_NUM_MUX_PORTS 4
62
63/*
64 * Debug.
65 */
66
67#ifdef DEBUG
68static unsigned long i8042_start_time;
69#define dbg_init() do { i8042_start_time = jiffies; } while (0)
70#define dbg(format, arg...) \
71 do { \
72 if (i8042_debug) \
73 printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format, \
74 (int) (jiffies - i8042_start_time), ##arg); \
75 } while (0)
76
77#define filter_dbg(filter, data, format, args...) \
78 do { \
79 if (!i8042_debug) \
80 break; \
81 \
82 if (!filter || i8042_unmask_kbd_data) \
83 dbg("%02x " format, data, ##args); \
84 else \
85 dbg("** " format, ##args); \
86 } while (0)
87#else
88#define dbg_init() do { } while (0)
89#define dbg(format, arg...) \
90 do { \
91 if (0) \
92 printk(KERN_DEBUG pr_fmt(format), ##arg); \
93 } while (0)
94
95#define filter_dbg(filter, data, format, args...) do { } while (0)
96#endif
97
98#endif /* _I8042_H */