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include
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asm-powerpc
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backlight.h

backlight.h 869 B
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  1. /*
    2. 

  2.  * Routines for handling backlight control on PowerBooks
    3. 

  3.  *
    4. 

  4.  * For now, implementation resides in
    5. 

  5.  * arch/powerpc/platforms/powermac/pmac_support.c
    6. 

  6.  *
    7. 

  7.  */
    8. 

  8. #ifndef __ASM_POWERPC_BACKLIGHT_H
    9. 

  9. #define __ASM_POWERPC_BACKLIGHT_H
    10. 

  10. #ifdef __KERNEL__
    11. 

  11. 

  12. /* Abstract values */
    13. 

  13. #define BACKLIGHT_OFF	0
    14. 

  14. #define BACKLIGHT_MIN	1
    15. 

  15. #define BACKLIGHT_MAX	0xf
    16. 

  16. 

  17. struct backlight_controller {
    18. 

  18. 	int (*set_enable)(int enable, int level, void *data);
    19. 

  19. 	int (*set_level)(int level, void *data);
    20. 

  20. };
    21. 

  21. 

  22. extern void register_backlight_controller(struct backlight_controller *ctrler, void *data, char *type);
    23. 

  23. extern void unregister_backlight_controller(struct backlight_controller *ctrler, void *data);
    24. 

  24. 

  25. extern int set_backlight_enable(int enable);
    26. 

  26. extern int get_backlight_enable(void);
    27. 

  27. extern int set_backlight_level(int level);
    28. 

  28. extern int get_backlight_level(void);
    29. 

  29. 

  30. #endif /* __KERNEL__ */
    31. 

  31. #endif
    32.