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Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/include/asm/mediabay.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mediabay.h b/arch/powerpc/include/asm/mediabay.h new file mode 100644 index 000000000..230fda470 --- /dev/null +++ b/arch/powerpc/include/asm/mediabay.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * mediabay.h: definitions for using the media bay + * on PowerBook 3400 and similar computers. + * + * Copyright (C) 1997 Paul Mackerras. + */ +#ifndef _PPC_MEDIABAY_H +#define _PPC_MEDIABAY_H + +#ifdef __KERNEL__ + +#define MB_FD 0 /* media bay contains floppy drive (automatic eject ?) */ +#define MB_FD1 1 /* media bay contains floppy drive (manual eject ?) */ +#define MB_SOUND 2 /* sound device ? */ +#define MB_CD 3 /* media bay contains ATA drive such as CD or ZIP */ +#define MB_PCI 5 /* media bay contains a PCI device */ +#define MB_POWER 6 /* media bay contains a Power device (???) */ +#define MB_NO 7 /* media bay contains nothing */ + +struct macio_dev; + +#ifdef CONFIG_PMAC_MEDIABAY + +/* Check the content type of the bay, returns MB_NO if the bay is still + * transitionning + */ +extern int check_media_bay(struct macio_dev *bay); + +/* The ATA driver uses the calls below to temporarily hold on the + * media bay callbacks while initializing the interface + */ +extern void lock_media_bay(struct macio_dev *bay); +extern void unlock_media_bay(struct macio_dev *bay); + +#else + +static inline int check_media_bay(struct macio_dev *bay) +{ + return MB_NO; +} + +static inline void lock_media_bay(struct macio_dev *bay) { } +static inline void unlock_media_bay(struct macio_dev *bay) { } + +#endif + +#endif /* __KERNEL__ */ +#endif /* _PPC_MEDIABAY_H */ |