vfs: remove unused MNT_STRICTATIME

[karo-tx-linux.git] / include / linux / input.h

diff --git a/include/linux/input.h b/include/linux/input.h
index 6fcc9101beeb3e907b9b4c030fef7db9b7f9e334..339d043ccb535c427cf8680be0d8a5aeb3274382 100644 (file)
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -691,9 +691,12 @@ struct input_absinfo {
 #define ABS_TILT_X             0x1a
 #define ABS_TILT_Y             0x1b
 #define ABS_TOOL_WIDTH         0x1c
+
 #define ABS_VOLUME             0x20
+
 #define ABS_MISC               0x28
 
+#define ABS_MT_SLOT            0x2f    /* MT slot being modified */
 #define ABS_MT_TOUCH_MAJOR     0x30    /* Major axis of touching ellipse */
 #define ABS_MT_TOUCH_MINOR     0x31    /* Minor axis (omit if circular) */
 #define ABS_MT_WIDTH_MAJOR     0x32    /* Major axis of approaching ellipse */
@@ -706,6 +709,12 @@ struct input_absinfo {
 #define ABS_MT_TRACKING_ID     0x39    /* Unique ID of initiated contact */
 #define ABS_MT_PRESSURE                0x3a    /* Pressure on contact area */
 
+#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
+#endif
+
 #define ABS_MAX                        0x3f
 #define ABS_CNT                        (ABS_MAX+1)
 
@@ -1047,6 +1056,14 @@ struct ff_effect {
 #include <linux/timer.h>
 #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
@@ -1063,6 +1080,10 @@ struct ff_effect {
  * @sndbit: bitmap of sound effects supported by the device
  * @ffbit: bitmap of force feedback effects supported by the device
  * @swbit: bitmap of switches present on the device
+ * @hint_events_per_packet: average number of events generated by the
+ *     device in a packet (between EV_SYN/SYN_REPORT events). Used by
+ *     event handlers to estimate size of the buffer needed to hold
+ *     events.
  * @keycodemax: size of keycode table
  * @keycodesize: size of elements in keycode table
  * @keycode: map of scancodes to keycodes for this device
@@ -1078,9 +1099,12 @@ struct ff_effect {
  * @repeat_key: stores key code of the last key pressed; used to implement
  *     software autorepeat
  * @timer: timer for software autorepeat
- * @sync: set to 1 when there were no new events since last EV_SYNC
  * @abs: current values for reports from absolute axes
  * @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
  * @key: reflects current state of device's keys/buttons
  * @led: reflects current state of device's LEDs
  * @snd: reflects current state of sound effects
@@ -1119,6 +1143,7 @@ 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
@@ -1140,6 +1165,8 @@ struct input_dev {
        unsigned long ffbit[BITS_TO_LONGS(FF_CNT)];
        unsigned long swbit[BITS_TO_LONGS(SW_CNT)];
 
+       unsigned int hint_events_per_packet;
+
        unsigned int keycodemax;
        unsigned int keycodesize;
        void *keycode;
@@ -1153,11 +1180,13 @@ struct input_dev {
        unsigned int repeat_key;
        struct timer_list timer;
 
-       int sync;
-
        int abs[ABS_CNT];
        int rep[REP_MAX + 1];
 
+       struct input_mt_slot *mt;
+       int mtsize;
+       int slot;
+
        unsigned long key[BITS_TO_LONGS(KEY_CNT)];
        unsigned long led[BITS_TO_LONGS(LED_CNT)];
        unsigned long snd[BITS_TO_LONGS(SND_CNT)];
@@ -1182,6 +1211,8 @@ struct input_dev {
        unsigned int users;
        bool going_away;
 
+       bool sync;
+
        struct device dev;
 
        struct list_head        h_list;
@@ -1406,8 +1437,28 @@ 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);
 
+/**
+ * input_set_events_per_packet - tell handlers about the driver event rate
+ * @dev: the input device used by the driver
+ * @n_events: the average number of events between calls to input_sync()
+ *
+ * If the event rate sent from a device is unusually large, use this
+ * function to set the expected event rate. This will allow handlers
+ * to set up an appropriate buffer size for the event stream, in order
+ * to minimize information loss.
+ */
+static inline void input_set_events_per_packet(struct input_dev *dev, int n_events)
+{
+       dev->hint_events_per_packet = n_events;
+}
+
 static inline void input_set_abs_params(struct input_dev *dev, int axis, int min, int max, int fuzz, int flat)
 {
        dev->absmin[axis] = min;
@@ -1485,5 +1536,8 @@ 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