1 /* SPDX-License-Identifier: GPL-2.0-only */
18 #define INPUT_MT_TRACK		0x0008	/* use in-kernel tracking */
19 #define INPUT_MT_SEMI_MT	0x0010	/* semi-mt device, finger count handled manually */
22  * struct input_mt_slot - represents the state of an input MT slot
23  * @abs: holds current values of ABS_MT axes for this slot
25  * @key: optional driver designation of this slot
28 	int abs[ABS_MT_LAST - ABS_MT_FIRST + 1];
34  * struct input_mt - state of tracked contacts
37  * @slot: MT slot currently being transmitted
39  * @frame: increases every time input_mt_sync_frame() is called
40  * @red: reduced cost matrix for in-kernel tracking
46 	int slot;  member
53 static inline void input_mt_set_value(struct input_mt_slot *slot,  in input_mt_set_value()  argument
56 	slot->abs[code - ABS_MT_FIRST] = value;  in input_mt_set_value()
59 static inline int input_mt_get_value(const struct input_mt_slot *slot,  in input_mt_get_value()  argument
62 	return slot->abs[code - ABS_MT_FIRST];  in input_mt_get_value()
65 static inline bool input_mt_is_active(const struct input_mt_slot *slot)  in input_mt_is_active()  argument
67 	return input_mt_get_value(slot, ABS_MT_TRACKING_ID) >= 0;  in input_mt_is_active()
71 				    const struct input_mt_slot *slot)  in input_mt_is_used()  argument
73 	return slot->frame == mt->frame;  in input_mt_is_used()
82 	return mt->trkid++ & TRKID_MAX;  in input_mt_new_trkid()
85 static inline void input_mt_slot(struct input_dev *dev, int slot)  in input_mt_slot()  argument
87 	input_event(dev, EV_ABS, ABS_MT_SLOT, slot);  in input_mt_slot()
115  * struct input_mt_pos - contact position