31 lines
842 B
C
31 lines
842 B
C
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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 arch/ppc/kernel/pmac_support.c
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*
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*/
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#ifdef __KERNEL__
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#ifndef __ASM_PPC_BACKLIGHT_H
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#define __ASM_PPC_BACKLIGHT_H
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/* Abstract values */
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#define BACKLIGHT_OFF 0
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#define BACKLIGHT_MIN 1
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#define BACKLIGHT_MAX 0xf
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struct backlight_controller {
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int (*set_enable)(int enable, int level, void *data);
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int (*set_level)(int level, void *data);
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};
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extern void register_backlight_controller(struct backlight_controller *ctrler, void *data, char *type);
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extern void unregister_backlight_controller(struct backlight_controller *ctrler, void *data);
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extern int set_backlight_enable(int enable);
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extern int get_backlight_enable(void);
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extern int set_backlight_level(int level);
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extern int get_backlight_level(void);
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#endif
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#endif /* __KERNEL__ */
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