1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * mediabay.h: definitions for using the media bay 4 * on PowerBook 3400 and similar computers. 5 * 6 * Copyright (C) 1997 Paul Mackerras. 7 */ 8 #ifndef _PPC_MEDIABAY_H 9 #define _PPC_MEDIABAY_H 10 11 #ifdef __KERNEL__ 12 13 #define MB_FD 0 /* media bay contains floppy drive (automatic eject ?) */ 14 #define MB_FD1 1 /* media bay contains floppy drive (manual eject ?) */ 15 #define MB_SOUND 2 /* sound device ? */ 16 #define MB_CD 3 /* media bay contains ATA drive such as CD or ZIP */ 17 #define MB_PCI 5 /* media bay contains a PCI device */ 18 #define MB_POWER 6 /* media bay contains a Power device (???) */ 19 #define MB_NO 7 /* media bay contains nothing */ 20 21 struct macio_dev; 22 23 #ifdef CONFIG_PMAC_MEDIABAY 24 25 /* Check the content type of the bay, returns MB_NO if the bay is still 26 * transitionning 27 */ 28 extern int check_media_bay(struct macio_dev *bay); 29 30 /* The ATA driver uses the calls below to temporarily hold on the 31 * media bay callbacks while initializing the interface 32 */ 33 extern void lock_media_bay(struct macio_dev *bay); 34 extern void unlock_media_bay(struct macio_dev *bay); 35 36 #else 37 check_media_bay(struct macio_dev * bay)38 static inline int check_media_bay(struct macio_dev *bay) 39 { 40 return MB_NO; 41 } 42 lock_media_bay(struct macio_dev * bay)43 static inline void lock_media_bay(struct macio_dev *bay) { } unlock_media_bay(struct macio_dev * bay)44 static inline void unlock_media_bay(struct macio_dev *bay) { } 45 46 #endif 47 48 #endif /* __KERNEL__ */ 49 #endif /* _PPC_MEDIABAY_H */ 50