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#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 trk_coord - contact coordinate
* @x: horizontal coordinate
* @y: vertical coordinate
*/
struct trk_coord {
int x;
int y;
};
int input_mt_create_slots_new(struct input_dev *dev, unsigned int num_slots);
int input_mt_assign_slots_by_coord(struct input_dev *dev, int *slots,
const struct trk_coord *coords,
int num_coords);
void input_mt_sync_slot_complement(struct input_dev *dev,
const int *slots, int num_slots);
void input_mt_report_state(struct input_dev *dev, bool active);
void input_mt_report_emulation(struct input_dev *dev);
static inline int input_mt_get_value(const struct input_mt_slot *slot,
unsigned code)
{
return slot->abs[code - ABS_MT_FIRST];
}
static inline bool input_mt_get_state(struct input_dev *dev, int slot)
{
return dev->mt &&
input_mt_get_value(&dev->mt[slot], ABS_MT_TRACKING_ID) >= 0;
}
static inline void input_abs_set_res(struct input_dev *dev,
unsigned int axis, int val)
{
dev->absres[axis] = val;
}
#endif
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