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/*

 * 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__ */