projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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__ */ |