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
20struct 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 */
27extern 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 */
32extern void lock_media_bay(struct macio_dev *bay);
33extern void unlock_media_bay(struct macio_dev *bay);
34
35#else
36
37static inline int check_media_bay(struct macio_dev *bay)
38{
39	return MB_NO;
40}
41
42static inline void lock_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