Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / input / gpio_tilt.h

diff --git a/kernel/include/linux/input/gpio_tilt.h b/kernel/include/linux/input/gpio_tilt.h
new file mode 100644 (file)
index 0000000..c1cc52d
--- /dev/null
+++ b/kernel/include/linux/input/gpio_tilt.h
@@ -0,0 +1,73 @@
+#ifndef _INPUT_GPIO_TILT_H
+#define _INPUT_GPIO_TILT_H
+
+/**
+ * struct gpio_tilt_axis - Axis used by the tilt switch
+ * @axis:              Constant describing the axis, e.g. ABS_X
+ * @min:               minimum value for abs_param
+ * @max:               maximum value for abs_param
+ * @fuzz:              fuzz value for abs_param
+ * @flat:              flat value for abs_param
+ */
+struct gpio_tilt_axis {
+       int axis;
+       int min;
+       int max;
+       int fuzz;
+       int flat;
+};
+
+/**
+ * struct gpio_tilt_state - state description
+ * @gpios:             bitfield of gpio target-states for the value
+ * @axes:              array containing the axes settings for the gpio state
+ *                     The array indizes must correspond to the axes defined
+ *                     in platform_data
+ *
+ * This structure describes a supported axis settings
+ * and the necessary gpio-state which represent it.
+ *
+ * The n-th bit in the bitfield describes the state of the n-th GPIO
+ * from the gpios-array defined in gpio_regulator_config below.
+ */
+struct gpio_tilt_state {
+       int gpios;
+       int *axes;
+};
+
+/**
+ * struct gpio_tilt_platform_data
+ * @gpios:             Array containing the gpios determining the tilt state
+ * @nr_gpios:          Number of gpios
+ * @axes:              Array of gpio_tilt_axis descriptions
+ * @nr_axes:           Number of axes
+ * @states:            Array of gpio_tilt_state entries describing
+ *                     the gpio state for specific tilts
+ * @nr_states:         Number of states available
+ * @debounce_interval: debounce ticks interval in msecs
+ * @poll_interval:     polling interval in msecs - for polling driver only
+ * @enable:            callback to enable the tilt switch
+ * @disable:           callback to disable the tilt switch
+ *
+ * This structure contains gpio-tilt-switch configuration
+ * information that must be passed by platform code to the
+ * gpio-tilt input driver.
+ */
+struct gpio_tilt_platform_data {
+       struct gpio *gpios;
+       int nr_gpios;
+
+       struct gpio_tilt_axis *axes;
+       int nr_axes;
+
+       struct gpio_tilt_state *states;
+       int nr_states;
+
+       int debounce_interval;
+
+       unsigned int poll_interval;
+       int (*enable)(struct device *dev);
+       void (*disable)(struct device *dev);
+};
+
+#endif