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
38 static inline int check_media_bay(struct macio_dev *bay)
39 {
40 return MB_NO;
41 }
42
43 static inline void lock_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 */