| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Routines for handling backlight control on PowerBooks |
| 3 | * |
| 4 | * For now, implementation resides in arch/ppc/kernel/pmac_support.c |
| 5 | * |
| 6 | */ |
| 7 | #ifdef __KERNEL__ |
| 8 | #ifndef __ASM_PPC_BACKLIGHT_H |
| 9 | #define __ASM_PPC_BACKLIGHT_H |
| 10 | |
| 11 | /* Abstract values */ |
| 12 | #define BACKLIGHT_OFF 0 |
| 13 | #define BACKLIGHT_MIN 1 |
| 14 | #define BACKLIGHT_MAX 0xf |
| 15 | |
| 16 | struct backlight_controller { |
| 17 | int (*set_enable)(int enable, int level, void *data); |
| 18 | int (*set_level)(int level, void *data); |
| 19 | }; |
| 20 | |
| 21 | extern void register_backlight_controller(struct backlight_controller *ctrler, void *data, char *type); |
| 22 | extern void unregister_backlight_controller(struct backlight_controller *ctrler, void *data); |
| 23 | |
| 24 | extern int set_backlight_enable(int enable); |
| 25 | extern int get_backlight_enable(void); |
| 26 | extern int set_backlight_level(int level); |
| 27 | extern int get_backlight_level(void); |
| 28 | |
| 29 | #endif |
| 30 | #endif /* __KERNEL__ */ |