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Merge branch 'for-next' of git://github.com/rydberg/linux into next

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Merge Henrik's updates to multitouch code. Even though Jiri already
pulled them in I need to do it too since my changes to evdev using
dynamic major would clash with them.
This commit is contained in:
Dmitry Torokhov
2012-10-01 14:40:51 -07:00
parent fb4f552e89 51c80b7400
commit 7774036808
25 changed files with 890 additions and 509 deletions
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include/linux/input/mt.h
+54 -3
View File
@@ -15,12 +15,41 @@
#define TRKID_MAX 0xffff
#define INPUT_MT_POINTER 0x0001 /* pointer device, e.g. trackpad */
#define INPUT_MT_DIRECT 0x0002 /* direct device, e.g. touchscreen */
#define INPUT_MT_DROP_UNUSED 0x0004 /* drop contacts not seen in frame */
#define INPUT_MT_TRACK 0x0008 /* use in-kernel tracking */
/**
* struct input_mt_slot - represents the state of an input MT slot
* @abs: holds current values of ABS_MT axes for this slot
* @frame: last frame at which input_mt_report_slot_state() was called
* @key: optional driver designation of this slot
*/
struct input_mt_slot {
int abs[ABS_MT_LAST - ABS_MT_FIRST + 1];
unsigned int frame;
unsigned int key;
};
/**
* struct input_mt - state of tracked contacts
* @trkid: stores MT tracking ID for the next contact
* @num_slots: number of MT slots the device uses
* @slot: MT slot currently being transmitted
* @flags: input_mt operation flags
* @frame: increases every time input_mt_sync_frame() is called
* @red: reduced cost matrix for in-kernel tracking
* @slots: array of slots holding current values of tracked contacts
*/
struct input_mt {
int trkid;
int num_slots;
int slot;
unsigned int flags;
unsigned int frame;
int *red;
struct input_mt_slot slots[];
};
static inline void input_mt_set_value(struct input_mt_slot *slot,
@@ -35,12 +64,18 @@ static inline int input_mt_get_value(const struct input_mt_slot *slot,
return slot->abs[code - ABS_MT_FIRST];
}
int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots);
static inline bool input_mt_is_active(const struct input_mt_slot *slot)
{
return input_mt_get_value(slot, ABS_MT_TRACKING_ID) >= 0;
}
int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
unsigned int flags);
void input_mt_destroy_slots(struct input_dev *dev);
static inline int input_mt_new_trkid(struct input_dev *dev)
static inline int input_mt_new_trkid(struct input_mt *mt)
{
return dev->trkid++ & TRKID_MAX;
return mt->trkid++ & TRKID_MAX;
}
static inline void input_mt_slot(struct input_dev *dev, int slot)
@@ -64,4 +99,20 @@ void input_mt_report_slot_state(struct input_dev *dev,
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);
void input_mt_sync_frame(struct input_dev *dev);
/**
* struct input_mt_pos - contact position
* @x: horizontal coordinate
* @y: vertical coordinate
*/
struct input_mt_pos {
s16 x, y;
};
int input_mt_assign_slots(struct input_dev *dev, int *slots,
const struct input_mt_pos *pos, int num_pos);
int input_mt_get_slot_by_key(struct input_dev *dev, int key);
#endif