mirror of
https://github.com/Qortal/Brooklyn.git
synced 2025-02-13 10:45:54 +00:00
2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
128 lines
3.4 KiB
C
128 lines
3.4 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
|
|
|
|
#define INPUT_MT_POINTER 0x0001 /* pointer device, e.g. trackpad */
|
|
#define INPUT_MT_DIRECT 0x0002 /* direct device, e.g. touchscreen */
|
|
#define INPUT_MT_DROP_UNUSED 0x0004 /* drop contacts not seen in frame */
|
|
#define INPUT_MT_TRACK 0x0008 /* use in-kernel tracking */
|
|
#define INPUT_MT_SEMI_MT 0x0010 /* semi-mt device, finger count handled manually */
|
|
|
|
/**
|
|
* struct input_mt_slot - represents the state of an input MT slot
|
|
* @abs: holds current values of ABS_MT axes for this slot
|
|
* @frame: last frame at which input_mt_report_slot_state() was called
|
|
* @key: optional driver designation of this slot
|
|
*/
|
|
struct input_mt_slot {
|
|
int abs[ABS_MT_LAST - ABS_MT_FIRST + 1];
|
|
unsigned int frame;
|
|
unsigned int key;
|
|
};
|
|
|
|
/**
|
|
* struct input_mt - state of tracked contacts
|
|
* @trkid: stores MT tracking ID for the next contact
|
|
* @num_slots: number of MT slots the device uses
|
|
* @slot: MT slot currently being transmitted
|
|
* @flags: input_mt operation flags
|
|
* @frame: increases every time input_mt_sync_frame() is called
|
|
* @red: reduced cost matrix for in-kernel tracking
|
|
* @slots: array of slots holding current values of tracked contacts
|
|
*/
|
|
struct input_mt {
|
|
int trkid;
|
|
int num_slots;
|
|
int slot;
|
|
unsigned int flags;
|
|
unsigned int frame;
|
|
int *red;
|
|
struct input_mt_slot slots[];
|
|
};
|
|
|
|
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];
|
|
}
|
|
|
|
static inline bool input_mt_is_active(const struct input_mt_slot *slot)
|
|
{
|
|
return input_mt_get_value(slot, ABS_MT_TRACKING_ID) >= 0;
|
|
}
|
|
|
|
static inline bool input_mt_is_used(const struct input_mt *mt,
|
|
const struct input_mt_slot *slot)
|
|
{
|
|
return slot->frame == mt->frame;
|
|
}
|
|
|
|
int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
|
|
unsigned int flags);
|
|
void input_mt_destroy_slots(struct input_dev *dev);
|
|
|
|
static inline int input_mt_new_trkid(struct input_mt *mt)
|
|
{
|
|
return mt->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_value(int axis)
|
|
{
|
|
return axis >= ABS_MT_FIRST && axis <= ABS_MT_LAST;
|
|
}
|
|
|
|
static inline bool input_is_mt_axis(int axis)
|
|
{
|
|
return axis == ABS_MT_SLOT || input_is_mt_value(axis);
|
|
}
|
|
|
|
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);
|
|
void input_mt_drop_unused(struct input_dev *dev);
|
|
|
|
void input_mt_sync_frame(struct input_dev *dev);
|
|
|
|
/**
|
|
* struct input_mt_pos - contact position
|
|
* @x: horizontal coordinate
|
|
* @y: vertical coordinate
|
|
*/
|
|
struct input_mt_pos {
|
|
s16 x, y;
|
|
};
|
|
|
|
int input_mt_assign_slots(struct input_dev *dev, int *slots,
|
|
const struct input_mt_pos *pos, int num_pos,
|
|
int dmax);
|
|
|
|
int input_mt_get_slot_by_key(struct input_dev *dev, int key);
|
|
|
|
#endif
|