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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__ */ |