49 строки
1.3 KiB
C
49 строки
1.3 KiB
C
/*
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* mediabay.h: definitions for using the media bay
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* on PowerBook 3400 and similar computers.
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*
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* Copyright (C) 1997 Paul Mackerras.
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*/
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#ifndef _PPC_MEDIABAY_H
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#define _PPC_MEDIABAY_H
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#ifdef __KERNEL__
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#define MB_FD 0 /* media bay contains floppy drive (automatic eject ?) */
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#define MB_FD1 1 /* media bay contains floppy drive (manual eject ?) */
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#define MB_SOUND 2 /* sound device ? */
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#define MB_CD 3 /* media bay contains ATA drive such as CD or ZIP */
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#define MB_PCI 5 /* media bay contains a PCI device */
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#define MB_POWER 6 /* media bay contains a Power device (???) */
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#define MB_NO 7 /* media bay contains nothing */
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struct macio_dev;
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#ifdef CONFIG_PMAC_MEDIABAY
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/* Check the content type of the bay, returns MB_NO if the bay is still
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* transitionning
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*/
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extern int check_media_bay(struct macio_dev *bay);
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/* The ATA driver uses the calls below to temporarily hold on the
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* media bay callbacks while initializing the interface
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*/
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extern void lock_media_bay(struct macio_dev *bay);
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extern void unlock_media_bay(struct macio_dev *bay);
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#else
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static inline int check_media_bay(struct macio_dev *bay)
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{
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return MB_NO;
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}
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static inline void lock_media_bay(struct macio_dev *bay) { }
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static inline void unlock_media_bay(struct macio_dev *bay) { }
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#endif
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#endif /* __KERNEL__ */
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#endif /* _PPC_MEDIABAY_H */
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