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battmembitsshared.h
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C/C++ Source or Header
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1993-10-15
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2KB
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85 lines
#ifndef RESOURCES_BATTMEMBITSSHARED_H
#define RESOURCES_BATTMEMBITSSHARED_H 1
/*
** $VER: battmembitsshared.h 39.2 (4.6.93)
** Includes Release 40.15
**
** BattMem shared specific bit definitions.
**
** (C) Copyright 1989-1993 Commodore-Amiga Inc.
** All Rights Reserved
*/
/*
* Shared bits in the battery-backedup ram.
*
* Bits 64 and above
*/
/*
* SHARED_AMNESIA
*
* The battery-backedup memory has had a memory loss.
* This bit is used as a flag that the user should be
* notified that all battery-backed bit have been
* reset and that some attention is required. Zero
* indicates that a memory loss has occured.
*/
#define BATTMEM_SHARED_AMNESIA_ADDR 64
#define BATTMEM_SHARED_AMNESIA_LEN 1
/*
* SCSI_HOST_ID
*
* a 3 bit field (0-7) that is stored in complemented form
* (this is so that default value of 0 really means 7)
* It's used to set the A3000 controllers SCSI ID (on reset)
*/
#define BATTMEM_SCSI_HOST_ID_ADDR 65
#define BATTMEM_SCSI_HOST_ID_LEN 3
/*
* SCSI_SYNC_XFER
*
* determines if the driver should initiate synchronous
* transfer requests or leave it to the drive to send the
* first request. This supports drives that crash or
* otherwise get confused when presented with a sync xfer
* message. Default=0=sync xfer not initiated.
*/
#define BATTMEM_SCSI_SYNC_XFER_ADDR 68
#define BATTMEM_SCSI_SYNC_XFER_LEN 1
/*
* SCSI_FAST_SYNC
*
* determines if the driver should initiate fast synchronous
* transfer requests (>5MB/s) instead of older <=5MB/s requests.
* Note that this has no effect if synchronous transfers are not
* negotiated by either side.
* Default=0=fast sync xfer used.
*/
#define BATTMEM_SCSI_FAST_SYNC_ADDR 69
#define BATTMEM_SCSI_FAST_SYNC_LEN 1
/*
* SCSI_TAG_QUEUES
*
* determines if the driver should use SCSI-2 tagged queuing
* which allows the drive to accept and reorder multiple read
* and write requests.
* Default=0=tagged queuing NOT enabled
*/
#define BATTMEM_SCSI_TAG_QUEUES_ADDR 70
#define BATTMEM_SCSI_TAG_QUEUES_LEN 1
#endif /* RESOURCES_BATTMEMBITSSHARED_H */