Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / input / input-compat.h

diff --git a/kernel/drivers/input/input-compat.h b/kernel/drivers/input/input-compat.h
new file mode 100644 (file)
index 0000000..148f66f
--- /dev/null
+++ b/kernel/drivers/input/input-compat.h
@@ -0,0 +1,92 @@
+#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 */
+#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
+#  define INPUT_COMPAT_TEST is_compat_task()
+#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)
+{
+       return (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) ?
+               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 */