Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / input-polldev.h

diff --git a/kernel/include/linux/input-polldev.h b/kernel/include/linux/input-polldev.h
new file mode 100644 (file)
index 0000000..2465182
--- /dev/null
+++ b/kernel/include/linux/input-polldev.h
@@ -0,0 +1,61 @@
+#ifndef _INPUT_POLLDEV_H
+#define _INPUT_POLLDEV_H
+
+/*
+ * Copyright (c) 2007 Dmitry Torokhov
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/input.h>
+#include <linux/workqueue.h>
+
+/**
+ * struct input_polled_dev - simple polled input device
+ * @private: private driver data.
+ * @open: driver-supplied method that prepares device for polling
+ *     (enabled the device and maybe flushes device state).
+ * @close: driver-supplied method that is called when device is no
+ *     longer being polled. Used to put device into low power mode.
+ * @poll: driver-supplied method that polls the device and posts
+ *     input events (mandatory).
+ * @poll_interval: specifies how often the poll() method should be called.
+ *     Defaults to 500 msec unless overridden when registering the device.
+ * @poll_interval_max: specifies upper bound for the poll interval.
+ *     Defaults to the initial value of @poll_interval.
+ * @poll_interval_min: specifies lower bound for the poll interval.
+ *     Defaults to 0.
+ * @input: input device structure associated with the polled device.
+ *     Must be properly initialized by the driver (id, name, phys, bits).
+ *
+ * Polled input device provides a skeleton for supporting simple input
+ * devices that do not raise interrupts but have to be periodically
+ * scanned or polled to detect changes in their state.
+ */
+struct input_polled_dev {
+       void *private;
+
+       void (*open)(struct input_polled_dev *dev);
+       void (*close)(struct input_polled_dev *dev);
+       void (*poll)(struct input_polled_dev *dev);
+       unsigned int poll_interval; /* msec */
+       unsigned int poll_interval_max; /* msec */
+       unsigned int poll_interval_min; /* msec */
+
+       struct input_dev *input;
+
+/* private: */
+       struct delayed_work work;
+
+       bool devres_managed;
+};
+
+struct input_polled_dev *input_allocate_polled_device(void);
+struct input_polled_dev *devm_input_allocate_polled_device(struct device *dev);
+void input_free_polled_device(struct input_polled_dev *dev);
+int input_register_polled_device(struct input_polled_dev *dev);
+void input_unregister_polled_device(struct input_polled_dev *dev);
+
+#endif