| 1 |
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| 2 | #ifndef _INPUT_COMPAT_H
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| 3 | #define _INPUT_COMPAT_H
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| 4 |
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| 5 | |
| 6 | * 32bit compatibility wrappers for the input subsystem.
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| 7 | *
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| 8 | * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik
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| 9 |
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| 10 |
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| 11 | #include <linux/compiler.h>
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| 12 | #include <linux/compat.h>
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| 13 | #include <linux/input.h>
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| 14 |
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| 15 | #ifdef CONFIG_COMPAT
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| 16 |
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| 17 | struct input_event_compat {
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| 18 | compat_ulong_t sec;
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| 19 | compat_ulong_t usec;
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| 20 | __u16 type;
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| 21 | __u16 code;
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| 22 | __s32 value;
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| 23 | };
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| 24 |
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| 25 | struct ff_periodic_effect_compat {
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| 26 | __u16 waveform;
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| 27 | __u16 period;
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| 28 | __s16 magnitude;
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| 29 | __s16 offset;
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| 30 | __u16 phase;
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| 31 |
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| 32 | struct ff_envelope envelope;
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| 33 |
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| 34 | __u32 custom_len;
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| 35 | compat_uptr_t custom_data;
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| 36 | };
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| 37 |
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| 38 | struct ff_effect_compat {
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| 39 | __u16 type;
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| 40 | __s16 id;
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| 41 | __u16 direction;
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| 42 | struct ff_trigger trigger;
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| 43 | struct ff_replay replay;
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| 44 |
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| 45 | union {
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| 46 | struct ff_constant_effect constant;
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| 47 | struct ff_ramp_effect ramp;
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| 48 | struct ff_periodic_effect_compat periodic;
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| 49 | struct ff_condition_effect condition[2];
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| 50 | struct ff_rumble_effect rumble;
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| 51 | } u;
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| 52 | };
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| 53 |
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| 54 | static inline size_t input_event_size(void)
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| 55 | {
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| 56 | return (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) ?
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| 57 | sizeof(struct input_event_compat) : sizeof(struct input_event);
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| 58 | }
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| 59 |
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| 60 | #else
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| 61 |
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| 62 | static inline size_t input_event_size(void)
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| 63 | {
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| 64 | return sizeof(struct input_event);
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| 65 | }
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| 66 |
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| 67 | #endif
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| 68 |
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| 69 | int input_event_from_user(const char __user *buffer,
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| 70 | struct input_event *event);
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| 71 |
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| 72 | int input_event_to_user(char __user *buffer,
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| 73 | const struct input_event *event);
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| 74 |
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| 75 | int input_ff_effect_from_user(const char __user *buffer, size_t size,
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| 76 | struct ff_effect *effect);
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| 77 |
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| 78 | int input_bits_to_string(char *buf, int buf_size, unsigned long bits,
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| 79 | bool skip_empty);
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| 80 |
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| 81 | #endif
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