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42 lines
1.1 KiB
42 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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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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