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/*
* BK Id: SCCS/s.backlight.h 1.5 05/17/01 18:14:24 cort
*/
/*
* 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__ */
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