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2d56f3a3 PL |
1 | #ifndef _INPUT_COMPAT_H |
2 | #define _INPUT_COMPAT_H | |
3 | ||
4 | /* | |
5 | * 32bit compatibility wrappers for the input subsystem. | |
6 | * | |
7 | * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License version 2 as published by | |
11 | * the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <linux/compiler.h> | |
15 | #include <linux/compat.h> | |
16 | #include <linux/input.h> | |
17 | ||
18 | #ifdef CONFIG_COMPAT | |
19 | ||
2d56f3a3 PL |
20 | struct input_event_compat { |
21 | struct compat_timeval time; | |
22 | __u16 type; | |
23 | __u16 code; | |
24 | __s32 value; | |
25 | }; | |
26 | ||
27 | struct ff_periodic_effect_compat { | |
28 | __u16 waveform; | |
29 | __u16 period; | |
30 | __s16 magnitude; | |
31 | __s16 offset; | |
32 | __u16 phase; | |
33 | ||
34 | struct ff_envelope envelope; | |
35 | ||
36 | __u32 custom_len; | |
37 | compat_uptr_t custom_data; | |
38 | }; | |
39 | ||
40 | struct ff_effect_compat { | |
41 | __u16 type; | |
42 | __s16 id; | |
43 | __u16 direction; | |
44 | struct ff_trigger trigger; | |
45 | struct ff_replay replay; | |
46 | ||
47 | union { | |
48 | struct ff_constant_effect constant; | |
49 | struct ff_ramp_effect ramp; | |
50 | struct ff_periodic_effect_compat periodic; | |
51 | struct ff_condition_effect condition[2]; /* One for each axis */ | |
52 | struct ff_rumble_effect rumble; | |
53 | } u; | |
54 | }; | |
55 | ||
56 | static inline size_t input_event_size(void) | |
57 | { | |
b8b4ead1 | 58 | return (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) ? |
2d56f3a3 PL |
59 | sizeof(struct input_event_compat) : sizeof(struct input_event); |
60 | } | |
61 | ||
62 | #else | |
63 | ||
64 | static inline size_t input_event_size(void) | |
65 | { | |
66 | return sizeof(struct input_event); | |
67 | } | |
68 | ||
69 | #endif /* CONFIG_COMPAT */ | |
70 | ||
71 | int input_event_from_user(const char __user *buffer, | |
72 | struct input_event *event); | |
73 | ||
74 | int input_event_to_user(char __user *buffer, | |
75 | const struct input_event *event); | |
76 | ||
77 | int input_ff_effect_from_user(const char __user *buffer, size_t size, | |
78 | struct ff_effect *effect); | |
79 | ||
80 | #endif /* _INPUT_COMPAT_H */ |