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 */ 50