diff options
Diffstat (limited to 'include/asm-ppc/backlight.h')
| -rw-r--r-- | include/asm-ppc/backlight.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/asm-ppc/backlight.h b/include/asm-ppc/backlight.h new file mode 100644 index 000000000000..3a1c3dede2a0 --- /dev/null +++ b/include/asm-ppc/backlight.h @@ -0,0 +1,30 @@ +/* + * Routines for handling backlight control on PowerBooks + * + * For now, implementation resides in arch/ppc/kernel/pmac_support.c + * + */ +#ifdef __KERNEL__ +#ifndef __ASM_PPC_BACKLIGHT_H +#define __ASM_PPC_BACKLIGHT_H + +/* 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 +#endif /* __KERNEL__ */ |