diff options
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/input.h | 3 | ||||
-rw-r--r-- | include/linux/input/mt.h | 13 |
2 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/input.h b/include/linux/input.h index 99e2a52c0509..6de145df4c1c 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -848,6 +848,7 @@ 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 @@ -1122,6 +1123,7 @@ struct ff_effect { * 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) @@ -1206,6 +1208,7 @@ struct input_dev { struct input_mt_slot *mt; int mtsize; int slot; + int trkid; struct input_absinfo *absinfo; diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h index d7f6518e3222..b3ac06a4435d 100644 --- a/include/linux/input/mt.h +++ b/include/linux/input/mt.h @@ -13,6 +13,8 @@ #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 @@ -36,9 +38,20 @@ static inline int input_mt_get_value(const struct input_mt_slot *slot, 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 |