1 files changed, 26 insertions, 0 deletions

diff --git a/include/linux/input.h b/include/linux/input.h
index 510e78558c10..94f277cd806a 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -21,6 +21,8 @@
 #include <linux/timer.h>
 #include <linux/mod_devicetable.h>
 
+struct input_dev_poller;
+
 /**
  * struct input_value - input value representation
  * @type: type of value (EV_KEY, EV_ABS, etc)
@@ -33,6 +35,13 @@ struct input_value {
 	__s32 value;
 };
 
+enum input_clock_type {
+	INPUT_CLK_REAL = 0,
+	INPUT_CLK_MONO,
+	INPUT_CLK_BOOT,
+	INPUT_CLK_MAX
+};
+
 /**
  * struct input_dev - represents an input device
  * @name: name of the device
@@ -64,6 +73,8 @@ struct input_value {
  *	not sleep
  * @ff: force feedback structure associated with the device if device
  *	supports force feedback effects
+ * @poller: poller structure associated with the device if device is
+ *	set up to use polling mode
  * @repeat_key: stores key code of the last key pressed; used to implement
  *	software autorepeat
  * @timer: timer for software autorepeat
@@ -114,6 +125,8 @@ struct input_value {
  * @vals: array of values queued in the current frame
  * @devres_managed: indicates that devices is managed with devres framework
  *	and needs not be explicitly unregistered or freed.
+ * @timestamp: storage for a timestamp set by input_set_timestamp called
+ *  by a driver
  */
 struct input_dev {
 	const char *name;
@@ -147,6 +160,8 @@ struct input_dev {
 
 	struct ff_device *ff;
 
+	struct input_dev_poller *poller;
+
 	unsigned int repeat_key;
 	struct timer_list timer;
 
@@ -184,6 +199,8 @@ struct input_dev {
 	struct input_value *vals;
 
 	bool devres_managed;
+
+	ktime_t timestamp[INPUT_CLK_MAX];
 };
 #define to_input_dev(d) container_of(d, struct input_dev, dev)
 
@@ -361,6 +378,12 @@ void input_unregister_device(struct input_dev *);
 
 void input_reset_device(struct input_dev *);
 
+int input_setup_polling(struct input_dev *dev,
+			void (*poll_fn)(struct input_dev *dev));
+void input_set_poll_interval(struct input_dev *dev, unsigned int interval);
+void input_set_min_poll_interval(struct input_dev *dev, unsigned int interval);
+void input_set_max_poll_interval(struct input_dev *dev, unsigned int interval);
+
 int __must_check input_register_handler(struct input_handler *);
 void input_unregister_handler(struct input_handler *);
 
@@ -382,6 +405,9 @@ void input_close_device(struct input_handle *);
 
 int input_flush_device(struct input_handle *handle, struct file *file);
 
+void input_set_timestamp(struct input_dev *dev, ktime_t timestamp);
+ktime_t *input_get_timestamp(struct input_dev *dev);
+
 void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
 void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value);