mediabay.h

 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
21struct 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 */
28extern 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 */
33extern void lock_media_bay(struct macio_dev *bay);
34extern void unlock_media_bay(struct macio_dev *bay);
35
36#else
37
38static inline int check_media_bay(struct macio_dev *bay)
39{
40	return MB_NO;
41}
42
43static inline void lock_media_bay(struct macio_dev *bay) { }
44static inline void unlock_media_bay(struct macio_dev *bay) { }
45
46#endif
47
48#endif /* __KERNEL__ */
49#endif /* _PPC_MEDIABAY_H */