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authorPaul Mackerras <paulus@samba.org>2005-10-11 09:26:48 +1000
committerPaul Mackerras <paulus@samba.org>2005-10-11 09:59:38 +1000
commit508c40227caee4cef0e963e61a3a5172a108b455 (patch)
tree2cec3435f5fec2f088d41d0d3f07dea54b278646 /include/asm-powerpc/backlight.h
parent20f629549b30a1154c8b5e830cb10a0c0faa875f (diff)
powerpc: Merged asm/backlight.h
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/backlight.h')
-rw-r--r--include/asm-powerpc/backlight.h31
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 00000000000..1ba1f27a0b6
--- /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