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)37 static inline int check_media_bay(struct macio_dev *bay)
38 {
39 	return MB_NO;
40 }
41 
lock_media_bay(struct macio_dev * bay)42 static inline void lock_media_bay(struct macio_dev *bay) { }
unlock_media_bay(struct macio_dev * bay)43 static inline void unlock_media_bay(struct macio_dev *bay) { }
44 
45 #endif
46 
47 #endif /* __KERNEL__ */
48 #endif /* _PPC_MEDIABAY_H */
49