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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/powerpc/include/asm/backlight.h
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/*

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 * Routines for handling backlight control on PowerBooks

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 *

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 * For now, implementation resides in

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 * arch/powerpc/platforms/powermac/backlight.c

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 *

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 */

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#ifndef __ASM_POWERPC_BACKLIGHT_H

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#define __ASM_POWERPC_BACKLIGHT_H

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#ifdef __KERNEL__

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#include <linux/fb.h>

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#include <linux/mutex.h>

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/* For locking instructions, see the implementation file */

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extern struct backlight_device *pmac_backlight;

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extern struct mutex pmac_backlight_mutex;

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extern int pmac_backlight_curve_lookup(struct fb_info *info, int value);

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extern int pmac_has_backlight_type(const char *type);

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extern void pmac_backlight_key(int direction);

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static inline void pmac_backlight_key_up(void)

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{

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	pmac_backlight_key(0);

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}

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static inline void pmac_backlight_key_down(void)

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{

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	pmac_backlight_key(1);

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}

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extern void pmac_backlight_set_legacy_brightness_pmu(int brightness);

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extern int pmac_backlight_set_legacy_brightness(int brightness);

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extern int pmac_backlight_get_legacy_brightness(void);

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extern void pmac_backlight_enable(void);

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extern void pmac_backlight_disable(void);

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#endif /* __KERNEL__ */

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#endif

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