linux-sg2042/include/asm-powerpc/backlight.h

32 lines
869 B
C

/*
* Routines for handling backlight control on PowerBooks
*
* For now, implementation resides in
* arch/powerpc/platforms/powermac/pmac_support.c
*
*/
#ifndef __ASM_POWERPC_BACKLIGHT_H
#define __ASM_POWERPC_BACKLIGHT_H
#ifdef __KERNEL__
/* 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 /* __KERNEL__ */
#endif