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#else
77#define dbg_init() do { } while (0)
78#define dbg(format, arg...)							\
79	do {									\
80		if (0)								\
81			printk(KERN_DEBUG pr_fmt(format), ##arg);		\
82	} while (0)
83#endif
84
85#endif /* _I8042_H */
86