mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-25 20:14:25 +08:00
31 lines
842 B
C
31 lines
842 B
C
|
/*
|
||
|
|
* 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__ */
|