| /* |
| * 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__ */ |
