cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mediabay.h (1375B)

      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 */