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/*
* Header for Microchannel Architecture Bus
* Written by Martin Kolinek, February 1996
*/
#ifndef _LINUX_MCA_H
#define _LINUX_MCA_H
/* Maximal number of MCA slots - actually, some machines have less, but
* they all have sufficient number of POS registers to cover 8.
*/
#define MCA_MAX_SLOT_NR 8
/* MCA_NOTFOUND is an error condition. The other two indicate
* motherboard POS registers contain the adapter. They might be
* returned by the mca_find_adapter() function, and can be used as
* arguments to mca_read_stored_pos(). I'm not going to allow direct
* access to the motherboard registers until we run across an adapter
* that requires it. We don't know enough about them to know if it's
* safe.
*
* See Documentation/mca.txt or one of the existing drivers for
* more information.
*/
#define MCA_NOTFOUND (-1)
#define MCA_INTEGSCSI (MCA_MAX_SLOT_NR)
#define MCA_INTEGVIDEO (MCA_MAX_SLOT_NR+1)
#define MCA_MOTHERBOARD (MCA_MAX_SLOT_NR+2)
/* Max number of adapters, including both slots and various integrated
* things.
*/
#define MCA_NUMADAPTERS (MCA_MAX_SLOT_NR+3)
#endif /* _LINUX_MCA_H */
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