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| author | Henrik Rydberg <rydberg@euromail.se> | 2010-11-27 09:16:48 +0100 |
|---|---|---|
| committer | Henrik Rydberg <rydberg@euromail.se> | 2010-12-16 10:39:57 +0100 |
| commit | 47c78e891323513e9909729b44033e2c6649e2b7 (patch) | |
| tree | 828e0da90418a890653ef2f0af3cf81714fe5c80 /include/linux/input | |
| parent | c8ddb2713c624f432fa5fe3c7ecffcdda46ea0d4 (diff) | |
| download | linux-3.10-47c78e891323513e9909729b44033e2c6649e2b7.tar.gz linux-3.10-47c78e891323513e9909729b44033e2c6649e2b7.tar.bz2 linux-3.10-47c78e891323513e9909729b44033e2c6649e2b7.zip | |
input: mt: Break out slots handling
In preparation for common code to handle a larger set of MT slots
devices, move the slots handling over to a separate file.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Diffstat (limited to 'include/linux/input')
| -rw-r--r-- | include/linux/input/mt.h | 44 |
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 00000000000..4f5e9d0e2ea --- /dev/null +++ b/include/linux/input/mt.h @@ -0,0 +1,44 @@ +#ifndef _INPUT_MT_H +#define _INPUT_MT_H + +/* + * Input Multitouch Library + * + * Copyright (c) 2010 Henrik Rydberg + * + * 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/input.h> + +/** + * struct input_mt_slot - represents the state of an input MT slot + * @abs: holds current values of ABS_MT axes for this slot + */ +struct input_mt_slot { + int abs[ABS_MT_LAST - ABS_MT_FIRST + 1]; +}; + +static inline void input_mt_set_value(struct input_mt_slot *slot, + unsigned code, int value) +{ + slot->abs[code - ABS_MT_FIRST] = value; +} + +static inline int input_mt_get_value(const struct input_mt_slot *slot, + unsigned code) +{ + return slot->abs[code - ABS_MT_FIRST]; +} + +int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots); +void input_mt_destroy_slots(struct input_dev *dev); + +static inline void input_mt_slot(struct input_dev *dev, int slot) +{ + input_event(dev, EV_ABS, ABS_MT_SLOT, slot); +} + +#endif |