Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 137 insertions, 0 deletions

diff --git a/include/linux/backlight.h b/include/linux/backlight.h
new file mode 100644
index 00000000..5ffc6dda
--- /dev/null
+++ b/include/linux/backlight.h
@@ -0,0 +1,137 @@
+/*
+ * Backlight Lowlevel Control Abstraction
+ *
+ * Copyright (C) 2003,2004 Hewlett-Packard Company
+ *
+ */
+
+#ifndef _LINUX_BACKLIGHT_H
+#define _LINUX_BACKLIGHT_H
+
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <linux/notifier.h>
+
+/* Notes on locking:
+ *
+ * backlight_device->ops_lock is an internal backlight lock protecting the
+ * ops pointer and no code outside the core should need to touch it.
+ *
+ * Access to update_status() is serialised by the update_lock mutex since
+ * most drivers seem to need this and historically get it wrong.
+ *
+ * Most drivers don't need locking on their get_brightness() method.
+ * If yours does, you need to implement it in the driver. You can use the
+ * update_lock mutex if appropriate.
+ *
+ * Any other use of the locks below is probably wrong.
+ */
+
+enum backlight_update_reason {
+	BACKLIGHT_UPDATE_HOTKEY,
+	BACKLIGHT_UPDATE_SYSFS,
+};
+
+enum backlight_type {
+	BACKLIGHT_RAW = 1,
+	BACKLIGHT_PLATFORM,
+	BACKLIGHT_FIRMWARE,
+	BACKLIGHT_TYPE_MAX,
+};
+
+struct backlight_device;
+struct fb_info;
+
+struct backlight_ops {
+	unsigned int options;
+
+#define BL_CORE_SUSPENDRESUME	(1 << 0)
+
+	/* Notify the backlight driver some property has changed */
+	int (*update_status)(struct backlight_device *);
+	/* Return the current backlight brightness (accounting for power,
+	   fb_blank etc.) */
+	int (*get_brightness)(struct backlight_device *);
+	/* Check if given framebuffer device is the one bound to this backlight;
+	   return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */
+	int (*check_fb)(struct backlight_device *, struct fb_info *);
+};
+
+/* This structure defines all the properties of a backlight */
+struct backlight_properties {
+	/* Current User requested brightness (0 - max_brightness) */
+	int brightness;
+	/* Maximal value for brightness (read-only) */
+	int max_brightness;
+	/* Current FB Power mode (0: full on, 1..3: power saving
+	   modes; 4: full off), see FB_BLANK_XXX */
+	int power;
+	/* FB Blanking active? (values as for power) */
+	/* Due to be removed, please use (state & BL_CORE_FBBLANK) */
+	int fb_blank;
+	/* Backlight type */
+	enum backlight_type type;
+	/* Flags used to signal drivers of state changes */
+	/* Upper 4 bits are reserved for driver internal use */
+	unsigned int state;
+
+#define BL_CORE_SUSPENDED	(1 << 0)	/* backlight is suspended */
+#define BL_CORE_FBBLANK		(1 << 1)	/* backlight is under an fb blank event */
+#define BL_CORE_DRIVER4		(1 << 28)	/* reserved for driver specific use */
+#define BL_CORE_DRIVER3		(1 << 29)	/* reserved for driver specific use */
+#define BL_CORE_DRIVER2		(1 << 30)	/* reserved for driver specific use */
+#define BL_CORE_DRIVER1		(1 << 31)	/* reserved for driver specific use */
+
+};
+
+struct backlight_device {
+	/* Backlight properties */
+	struct backlight_properties props;
+
+	/* Serialise access to update_status method */
+	struct mutex update_lock;
+
+	/* This protects the 'ops' field. If 'ops' is NULL, the driver that
+	   registered this device has been unloaded, and if class_get_devdata()
+	   points to something in the body of that driver, it is also invalid. */
+	struct mutex ops_lock;
+	const struct backlight_ops *ops;
+
+	/* The framebuffer notifier block */
+	struct notifier_block fb_notif;
+
+	struct device dev;
+};
+
+static inline void backlight_update_status(struct backlight_device *bd)
+{
+	mutex_lock(&bd->update_lock);
+	if (bd->ops && bd->ops->update_status)
+		bd->ops->update_status(bd);
+	mutex_unlock(&bd->update_lock);
+}
+
+extern struct backlight_device *backlight_device_register(const char *name,
+	struct device *dev, void *devdata, const struct backlight_ops *ops,
+	const struct backlight_properties *props);
+extern void backlight_device_unregister(struct backlight_device *bd);
+extern void backlight_force_update(struct backlight_device *bd,
+				   enum backlight_update_reason reason);
+
+#define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)
+
+static inline void * bl_get_data(struct backlight_device *bl_dev)
+{
+	return dev_get_drvdata(&bl_dev->dev);
+}
+
+struct generic_bl_info {
+	const char *name;
+	int max_intensity;
+	int default_intensity;
+	int limit_mask;
+	void (*set_bl_intensity)(int intensity);
+	void (*kick_battery)(void);
+};
+
+#endif