Staging: hv: hv_mouse: unwind the initialization process a bit
[zen-stable.git] / arch / powerpc / include / asm / mediabay.h
blob11037a4133ee0fa9f8325cb5fb8bc1666c900373
1 /*
2 * mediabay.h: definitions for using the media bay
3 * on PowerBook 3400 and similar computers.
5 * Copyright (C) 1997 Paul Mackerras.
6 */
7 #ifndef _PPC_MEDIABAY_H
8 #define _PPC_MEDIABAY_H
10 #ifdef __KERNEL__
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 */
20 struct macio_dev;
22 #ifdef CONFIG_PMAC_MEDIABAY
24 /* Check the content type of the bay, returns MB_NO if the bay is still
25 * transitionning
27 extern int check_media_bay(struct macio_dev *bay);
29 /* The ATA driver uses the calls below to temporarily hold on the
30 * media bay callbacks while initializing the interface
32 extern void lock_media_bay(struct macio_dev *bay);
33 extern void unlock_media_bay(struct macio_dev *bay);
35 #else
37 static inline int check_media_bay(struct macio_dev *bay)
39 return MB_NO;
42 static inline void lock_media_bay(struct macio_dev *bay) { }
43 static inline void unlock_media_bay(struct macio_dev *bay) { }
45 #endif
47 #endif /* __KERNEL__ */
48 #endif /* _PPC_MEDIABAY_H */