1/* SPDX-License-Identifier: GPL-2.0-only */
2#ifndef _I8042_H
3#define _I8042_H
4
5
6/*
7 *  Copyright (c) 1999-2002 Vojtech Pavlik
8 */
9
10/*
11 * Arch-dependent inline functions and defines.
12 */
13
14#if defined(CONFIG_MACH_JAZZ)
15#include "i8042-jazzio.h"
16#elif defined(CONFIG_SGI_HAS_I8042)
17#include "i8042-ip22io.h"
18#elif defined(CONFIG_SNI_RM)
19#include "i8042-snirm.h"
20#elif defined(CONFIG_SPARC)
21#include "i8042-sparcio.h"
22#elif defined(CONFIG_MACH_LOONGSON64)
23#include "i8042-loongsonio.h"
24#elif defined(CONFIG_X86) || defined(CONFIG_IA64)
25#include "i8042-acpipnpio.h"
26#else
27#include "i8042-io.h"
28#endif
29
30/*
31 * This is in 50us units, the time we wait for the i8042 to react. This
32 * has to be long enough for the i8042 itself to timeout on sending a byte
33 * to a non-existent mouse.
34 */
35
36#define I8042_CTL_TIMEOUT	10000
37
38/*
39 * Return codes.
40 */
41
42#define I8042_RET_CTL_TEST	0x55
43
44/*
45 * Expected maximum internal i8042 buffer size. This is used for flushing
46 * the i8042 buffers.
47 */
48
49#define I8042_BUFFER_SIZE	16
50
51/*
52 * Number of AUX ports on controllers supporting active multiplexing
53 * specification
54 */
55
56#define I8042_NUM_MUX_PORTS	4
57
58/*
59 * Debug.
60 */
61
62#ifdef DEBUG
63static unsigned long i8042_start_time;
64#define dbg_init() do { i8042_start_time = jiffies; } while (0)
65#define dbg(format, arg...)							\
66	do {									\
67		if (i8042_debug)						\
68			printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format,	\
69			       (int) (jiffies - i8042_start_time), ##arg);	\
70	} while (0)
71
72#define filter_dbg(filter, data, format, args...)		\
73	do {							\
74		if (!i8042_debug)				\
75			break;					\
76								\
77		if (!filter || i8042_unmask_kbd_data)		\
78			dbg("%02x " format, data, ##args);	\
79		else						\
80			dbg("** " format, ##args);		\
81	} while (0)
82#else
83#define dbg_init() do { } while (0)
84#define dbg(format, arg...)							\
85	do {									\
86		if (0)								\
87			printk(KERN_DEBUG pr_fmt(format), ##arg);		\
88	} while (0)
89
90#define filter_dbg(filter, data, format, args...) do { } while (0)
91#endif
92
93#endif /* _I8042_H */
94