/* * Routines for handling backlight control on PowerBooks * * For now, implementation resides in * arch/powerpc/platforms/powermac/backlight.c * */#ifndef __ASM_POWERPC_BACKLIGHT_H#define __ASM_POWERPC_BACKLIGHT_H#ifdef __KERNEL__ #include <linux/fb.h>#include <linux/mutex.h> /* For locking instructions, see the implementation file */extern struct backlight_device *pmac_backlight;extern struct mutex pmac_backlight_mutex; extern int pmac_backlight_curve_lookup(struct fb_info *info, int value); extern int pmac_has_backlight_type(const char *type); extern void pmac_backlight_key(int direction);static inline void pmac_backlight_key_up(void){	pmac_backlight_key(0);}static inline void pmac_backlight_key_down(void){	pmac_backlight_key(1);} extern void pmac_backlight_set_legacy_brightness_pmu(int brightness);extern int pmac_backlight_set_legacy_brightness(int brightness);extern int pmac_backlight_get_legacy_brightness(void); extern void pmac_backlight_enable(void);extern void pmac_backlight_disable(void); #endif /* __KERNEL__ */#endif