Merge branch 'next' into for-linus

Prepare second set of updates for 3.7 merge window (Wacom driver update
and patches extending number of input minors).

3 files changed, 88 insertions, 19 deletions

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 42970de1b40..7e1f37db758 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -414,7 +414,7 @@ struct hid_field {
 	__u16 dpad;			/* dpad input code */
 };
 
-#define HID_MAX_FIELDS 128
+#define HID_MAX_FIELDS 256
 
 struct hid_report {
 	struct list_head list;
@@ -626,6 +626,7 @@ struct hid_usage_id {
  * @report_fixup: called before report descriptor parsing (NULL means nop)
  * @input_mapping: invoked on input registering before mapping an usage
  * @input_mapped: invoked on input registering after mapping an usage
+ * @input_configured: invoked just before the device is registered
  * @feature_mapping: invoked on feature registering
  * @suspend: invoked on suspend (NULL means nop)
  * @resume: invoked on resume if device was not reset (NULL means nop)
@@ -670,6 +671,8 @@ struct hid_driver {
 	int (*input_mapped)(struct hid_device *hdev,
 			struct hid_input *hidinput, struct hid_field *field,
 			struct hid_usage *usage, unsigned long **bit, int *max);
+	void (*input_configured)(struct hid_device *hdev,
+				 struct hid_input *hidinput);
 	void (*feature_mapping)(struct hid_device *hdev,
 			struct hid_field *field,
 			struct hid_usage *usage);
diff --git a/include/linux/input.h b/include/linux/input.h
index 725dcd0f63a..15464ba6bf5 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -1169,6 +1169,18 @@ struct ff_effect {
 #include <linux/mod_devicetable.h>
 
 /**
+ * struct input_value - input value representation
+ * @type: type of value (EV_KEY, EV_ABS, etc)
+ * @code: the value code
+ * @value: the value
+ */
+struct input_value {
+	__u16 type;
+	__u16 code;
+	__s32 value;
+};
+
+/**
  * struct input_dev - represents an input device
  * @name: name of the device
  * @phys: physical path to the device in the system hierarchy
@@ -1203,11 +1215,7 @@ struct ff_effect {
  *	software autorepeat
  * @timer: timer for software autorepeat
  * @rep: current values for autorepeat parameters (delay, rate)
- * @mt: pointer to array of struct input_mt_slot holding current values
- *	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
+ * @mt: pointer to multitouch state
  * @absinfo: array of &struct input_absinfo elements holding information
  *	about absolute axes (current value, min, max, flat, fuzz,
  *	resolution)
@@ -1244,7 +1252,6 @@ struct ff_effect {
  *	last user closes the device
  * @going_away: marks devices that are in a middle of unregistering and
  *	causes input_open_device*() fail with -ENODEV.
- * @sync: set to %true when there were no new events since last EV_SYN
  * @dev: driver model's view of this device
  * @h_list: list of input handles associated with the device. When
  *	accessing the list dev->mutex must be held
@@ -1287,10 +1294,7 @@ struct input_dev {
 
 	int rep[REP_CNT];
 
-	struct input_mt_slot *mt;
-	int mtsize;
-	int slot;
-	int trkid;
+	struct input_mt *mt;
 
 	struct input_absinfo *absinfo;
 
@@ -1312,12 +1316,14 @@ struct input_dev {
 	unsigned int users;
 	bool going_away;
 
-	bool sync;
-
 	struct device dev;
 
 	struct list_head	h_list;
 	struct list_head	node;
+
+	unsigned int num_vals;
+	unsigned int max_vals;
+	struct input_value *vals;
 };
 #define to_input_dev(d) container_of(d, struct input_dev, dev)
 
@@ -1378,6 +1384,9 @@ struct input_handle;
  * @event: event handler. This method is being called by input core with
  *	interrupts disabled and dev->event_lock spinlock held and so
  *	it may not sleep
+ * @events: event sequence handler. This method is being called by
+ *	input core with interrupts disabled and dev->event_lock
+ *	spinlock held and so it may not sleep
  * @filter: similar to @event; separates normal event handlers from
  *	"filters".
  * @match: called after comparing device's id with handler's id_table
@@ -1387,8 +1396,8 @@ struct input_handle;
  * @start: starts handler for given handle. This function is called by
  *	input core right after connect() method and also when a process
  *	that "grabbed" a device releases it
- * @fops: file operations this driver implements
- * @minor: beginning of range of 32 minors for devices this driver
+ * @legacy_minors: set to %true by drivers using legacy minor ranges
+ * @minor: beginning of range of 32 legacy minors for devices this driver
  *	can provide
  * @name: name of the handler, to be shown in /proc/bus/input/handlers
  * @id_table: pointer to a table of input_device_ids this driver can
@@ -1414,13 +1423,15 @@ struct input_handler {
 	void *private;
 
 	void (*event)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
+	void (*events)(struct input_handle *handle,
+		       const struct input_value *vals, unsigned int count);
 	bool (*filter)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
 	bool (*match)(struct input_handler *handler, struct input_dev *dev);
 	int (*connect)(struct input_handler *handler, struct input_dev *dev, const struct input_device_id *id);
 	void (*disconnect)(struct input_handle *handle);
 	void (*start)(struct input_handle *handle);
 
-	const struct file_operations *fops;
+	bool legacy_minors;
 	int minor;
 	const char *name;
 
@@ -1488,6 +1499,10 @@ void input_reset_device(struct input_dev *);
 int __must_check input_register_handler(struct input_handler *);
 void input_unregister_handler(struct input_handler *);
 
+int __must_check input_get_new_minor(int legacy_base, unsigned int legacy_num,
+				     bool allow_dynamic);
+void input_free_minor(unsigned int minor);
+
 int input_handler_for_each_handle(struct input_handler *, void *data,
 				  int (*fn)(struct input_handle *, void *));
 
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index f86737586e1..cc5cca774ba 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -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