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-rw-r--r--include/linux/input/mt.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
new file mode 100644
index 000000000000..4f5e9d0e2eae
--- /dev/null
+++ b/include/linux/input/mt.h
@@ -0,0 +1,44 @@
1#ifndef _INPUT_MT_H
2#define _INPUT_MT_H
3
4/*
5 * Input Multitouch Library
6 *
7 * Copyright (c) 2010 Henrik Rydberg
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/input.h>
15
16/**
17 * struct input_mt_slot - represents the state of an input MT slot
18 * @abs: holds current values of ABS_MT axes for this slot
19 */
20struct input_mt_slot {
21 int abs[ABS_MT_LAST - ABS_MT_FIRST + 1];
22};
23
24static inline void input_mt_set_value(struct input_mt_slot *slot,
25 unsigned code, int value)
26{
27 slot->abs[code - ABS_MT_FIRST] = value;
28}
29
30static inline int input_mt_get_value(const struct input_mt_slot *slot,
31 unsigned code)
32{
33 return slot->abs[code - ABS_MT_FIRST];
34}
35
36int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots);
37void input_mt_destroy_slots(struct input_dev *dev);
38
39static inline void input_mt_slot(struct input_dev *dev, int slot)
40{
41 input_event(dev, EV_ABS, ABS_MT_SLOT, slot);
42}
43
44#endif