powerpc: Merged asm/backlight.h

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/include/asm-powerpc/backlight.h b/include/asm-powerpc/backlight.h
new file mode 100644
index 000000000000..1ba1f27a0b63
--- /dev/null
+++ b/include/asm-powerpc/backlight.h
@@ -0,0 +1,31 @@
+/*
+ * Routines for handling backlight control on PowerBooks
+ *
+ * For now, implementation resides in
+ * arch/powerpc/platforms/powermac/pmac_support.c
+ *
+ */
+#ifndef __ASM_POWERPC_BACKLIGHT_H
+#define __ASM_POWERPC_BACKLIGHT_H
+#ifdef __KERNEL__
+
+/* Abstract values */
+#define BACKLIGHT_OFF   0
+#define BACKLIGHT_MIN   1
+#define BACKLIGHT_MAX   0xf
+
+struct backlight_controller {
+        int (*set_enable)(int enable, int level, void *data);
+        int (*set_level)(int level, void *data);
+};
+
+extern void register_backlight_controller(struct backlight_controller *ctrler, void *data, char *type);
+extern void unregister_backlight_controller(struct backlight_controller *ctrler, void *data);
+
+extern int set_backlight_enable(int enable);
+extern int get_backlight_enable(void);
+extern int set_backlight_level(int level);
+extern int get_backlight_level(void);
+
+#endif /* __KERNEL__ */
+#endif