mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
80b4895aa4
Calculate a default based on the number of ABS axes, REL axes, and MT slots for the device during input device registration. Signed-off-by: Jeff Brown <jeffbrown@android.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
#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>
|
|
|
|
#define TRKID_MAX 0xffff
|
|
|
|
/**
|
|
* 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_init_slots(struct input_dev *dev, unsigned int num_slots);
|
|
void input_mt_destroy_slots(struct input_dev *dev);
|
|
|
|
static inline int input_mt_new_trkid(struct input_dev *dev)
|
|
{
|
|
return dev->trkid++ & TRKID_MAX;
|
|
}
|
|
|
|
static inline void input_mt_slot(struct input_dev *dev, int slot)
|
|
{
|
|
input_event(dev, EV_ABS, ABS_MT_SLOT, slot);
|
|
}
|
|
|
|
static inline bool input_is_mt_axis(int axis)
|
|
{
|
|
return axis == ABS_MT_SLOT ||
|
|
(axis >= ABS_MT_FIRST && axis <= ABS_MT_LAST);
|
|
}
|
|
|
|
void input_mt_report_slot_state(struct input_dev *dev,
|
|
unsigned int tool_type, bool active);
|
|
|
|
void input_mt_report_finger_count(struct input_dev *dev, int count);
|
|
void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count);
|
|
|
|
#endif
|