| #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_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); | |
| #endif |