1 #ifndef _INPUT_MT_H 2 #define _INPUT_MT_H 3 4 /* 5 * Input Multitouch Library 6 * 7 * Copyright (c) 2010 Henrik Rydberg 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License version 2 as published by 11 * the Free Software Foundation. 12 */ 13 14 #include <linux/input.h> 15 16 /** 17 * struct input_mt_slot - represents the state of an input MT slot 18 * @abs: holds current values of ABS_MT axes for this slot 19 */ 20 struct input_mt_slot { 21 int abs[ABS_MT_LAST - ABS_MT_FIRST + 1]; 22 }; 23 24 static inline void input_mt_set_value(struct input_mt_slot *slot, 25 unsigned code, int value) 26 { 27 slot->abs[code - ABS_MT_FIRST] = value; 28 } 29 30 static inline int input_mt_get_value(const struct input_mt_slot *slot, 31 unsigned code) 32 { 33 return slot->abs[code - ABS_MT_FIRST]; 34 } 35 36 int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots); 37 void input_mt_destroy_slots(struct input_dev *dev); 38 39 static inline void input_mt_slot(struct input_dev *dev, int slot) 40 { 41 input_event(dev, EV_ABS, ABS_MT_SLOT, slot); 42 } 43 44 #endif 45