diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/input.h | 22 | ||||
| -rw-r--r-- | include/linux/input/mt.h | 57 |
2 files changed, 62 insertions, 17 deletions
diff --git a/include/linux/input.h b/include/linux/input.h index 6ef44465db8d..53f873e8556c 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -733,11 +733,12 @@ struct input_keymap_entry { #define ABS_MT_BLOB_ID 0x38 /* Group a set of packets as a blob */ #define ABS_MT_TRACKING_ID 0x39 /* Unique ID of initiated contact */ #define ABS_MT_PRESSURE 0x3a /* Pressure on contact area */ +#define ABS_MT_DISTANCE 0x3b /* Contact hover distance */ #ifdef __KERNEL__ /* Implementation details, userspace should not care about these */ #define ABS_MT_FIRST ABS_MT_TOUCH_MAJOR -#define ABS_MT_LAST ABS_MT_PRESSURE +#define ABS_MT_LAST ABS_MT_DISTANCE #endif #define ABS_MAX 0x3f @@ -848,6 +849,7 @@ struct input_keymap_entry { */ #define MT_TOOL_FINGER 0 #define MT_TOOL_PEN 1 +#define MT_TOOL_MAX 1 /* * Values describing the status of a force-feedback effect @@ -1083,14 +1085,6 @@ struct ff_effect { #include <linux/mod_devicetable.h> /** - * 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]; -}; - -/** * struct input_dev - represents an input device * @name: name of the device * @phys: physical path to the device in the system hierarchy @@ -1130,6 +1124,7 @@ struct input_mt_slot { * of tracked contacts * @mtsize: number of MT slots the device uses * @slot: MT slot currently being transmitted + * @trkid: stores MT tracking ID for the current contact * @absinfo: array of &struct absinfo elements holding information * about absolute axes (current value, min, max, flat, fuzz, * resolution) @@ -1214,6 +1209,7 @@ struct input_dev { struct input_mt_slot *mt; int mtsize; int slot; + int trkid; struct input_absinfo *absinfo; @@ -1463,11 +1459,6 @@ static inline void input_mt_sync(struct input_dev *dev) input_event(dev, EV_SYN, SYN_MT_REPORT, 0); } -static inline void input_mt_slot(struct input_dev *dev, int slot) -{ - input_event(dev, EV_ABS, ABS_MT_SLOT, slot); -} - void input_set_capability(struct input_dev *dev, unsigned int type, unsigned int code); /** @@ -1580,8 +1571,5 @@ int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file); int input_ff_create_memless(struct input_dev *dev, void *data, int (*play_effect)(struct input_dev *, void *, struct ff_effect *)); -int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots); -void input_mt_destroy_slots(struct input_dev *dev); - #endif #endif diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h new file mode 100644 index 000000000000..b3ac06a4435d --- /dev/null +++ b/include/linux/input/mt.h @@ -0,0 +1,57 @@ +#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); +} + +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 |
