1 /* 2 * mediabay.h: definitions for using the media bay 3 * on PowerBook 3400 and similar computers. 4 * 5 * Copyright (C) 1997 Paul Mackerras. 6 */ 7 #ifndef _PPC_MEDIABAY_H 8 #define _PPC_MEDIABAY_H 9 10 #ifdef __KERNEL__ 11 12 #define MB_FD 0 /* media bay contains floppy drive (automatic eject ?) */ 13 #define MB_FD1 1 /* media bay contains floppy drive (manual eject ?) */ 14 #define MB_SOUND 2 /* sound device ? */ 15 #define MB_CD 3 /* media bay contains ATA drive such as CD or ZIP */ 16 #define MB_PCI 5 /* media bay contains a PCI device */ 17 #define MB_POWER 6 /* media bay contains a Power device (???) */ 18 #define MB_NO 7 /* media bay contains nothing */ 19 20 struct macio_dev; 21 22 #ifdef CONFIG_PMAC_MEDIABAY 23 24 /* Check the content type of the bay, returns MB_NO if the bay is still 25 * transitionning 26 */ 27 extern int check_media_bay(struct macio_dev *bay); 28 29 /* The ATA driver uses the calls below to temporarily hold on the 30 * media bay callbacks while initializing the interface 31 */ 32 extern void lock_media_bay(struct macio_dev *bay); 33 extern void unlock_media_bay(struct macio_dev *bay); 34 35 #else 36 check_media_bay(struct macio_dev * bay)37static inline int check_media_bay(struct macio_dev *bay) 38 { 39 return MB_NO; 40 } 41 lock_media_bay(struct macio_dev * bay)42static inline void lock_media_bay(struct macio_dev *bay) { } unlock_media_bay(struct macio_dev * bay)43static inline void unlock_media_bay(struct macio_dev *bay) { } 44 45 #endif 46 47 #endif /* __KERNEL__ */ 48 #endif /* _PPC_MEDIABAY_H */ 49