kernel-ark/include/asm-powerpc/mediabay.h
Bartlomiej Zolnierkiewicz 2dde7861af ide: rework PowerMac media-bay support (take 2)
Rework PowerMac media-bay support in such way that instead of
un/registering the IDE interface we un/register IDE devices:

* Add ide_port_scan() helper for probing+registerering devices on a port.

* Rename ide_port_unregister_devices() to __ide_port_unregister_devices().

* Add ide_port_unregister_devices() helper for unregistering devices on a port.

* Add 'ide_hwif_t *cd_port' to 'struct media_bay_info', pass 'hwif' instead
  of hwif->index to media_bay_set_ide_infos() and use it to setup 'cd_port'.

* Use ide_port_unregister_devices() instead of ide_unregister()
  and ide_port_scan() instead of ide_register_hw() in media_bay_step().

* Unexport ide_register_hw() and make it static.

v2:
* Fix build by adding <linux/ide.h> include to <asm-powerpc/mediabay.h>.
  (Reported by Michael/Kamalesh/Andrew).

Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-18 00:46:23 +02:00

36 lines
1.1 KiB
C

/*
* 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 */
int check_media_bay(struct device_node *which_bay, int what);
/* Number of bays in the machine or 0 */
extern int media_bay_count;
#ifdef CONFIG_BLK_DEV_IDE_PMAC
#include <linux/ide.h>
int check_media_bay_by_base(unsigned long base, int what);
/* called by IDE PMAC host driver to register IDE controller for media bay */
int media_bay_set_ide_infos(struct device_node *which_bay, unsigned long base,
int irq, ide_hwif_t *hwif);
#endif
#endif /* __KERNEL__ */
#endif /* _PPC_MEDIABAY_H */