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drivers/input/input-compat.h
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#ifndef _INPUT_COMPAT_H #define _INPUT_COMPAT_H /* * 32bit compatibility wrappers for the input subsystem. * * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ #include <linux/compiler.h> #include <linux/compat.h> #include <linux/input.h> #ifdef CONFIG_COMPAT /* Note to the author of this code: did it ever occur to you why the ifdefs are needed? Think about it again. -AK */ |
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#if defined(CONFIG_X86_64) || defined(CONFIG_TILE) |
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# define INPUT_COMPAT_TEST is_compat_task() |
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#elif defined(CONFIG_S390) # define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT) #elif defined(CONFIG_MIPS) # define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR) #else # define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT) #endif struct input_event_compat { struct compat_timeval time; __u16 type; __u16 code; __s32 value; }; struct ff_periodic_effect_compat { __u16 waveform; __u16 period; __s16 magnitude; __s16 offset; __u16 phase; struct ff_envelope envelope; __u32 custom_len; compat_uptr_t custom_data; }; struct ff_effect_compat { __u16 type; __s16 id; __u16 direction; struct ff_trigger trigger; struct ff_replay replay; union { struct ff_constant_effect constant; struct ff_ramp_effect ramp; struct ff_periodic_effect_compat periodic; struct ff_condition_effect condition[2]; /* One for each axis */ struct ff_rumble_effect rumble; } u; }; static inline size_t input_event_size(void) { |
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return (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) ? |
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sizeof(struct input_event_compat) : sizeof(struct input_event); } #else static inline size_t input_event_size(void) { return sizeof(struct input_event); } #endif /* CONFIG_COMPAT */ int input_event_from_user(const char __user *buffer, struct input_event *event); int input_event_to_user(char __user *buffer, const struct input_event *event); int input_ff_effect_from_user(const char __user *buffer, size_t size, struct ff_effect *effect); #endif /* _INPUT_COMPAT_H */ |