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88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
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File: SCSIStandard.h
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Contains: Commonly used structures and values from SCSI standard
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Written by: Paul Wolf
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Copyright: © 1990-1993 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<SM4> 11/10/93 fau Update from SuperMunggio <SMG2>.
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<SMG2> 9/29/93 chp Fix up header and conditional inclusion.
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<SM3> 10/14/93 pdw Got rid of the 'code' following ExtendedMsg.
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<SM2> 7/17/93 pdw Changed phz to phas in all of the SCSIPhase enums.
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<SM1> 1/27/93 PW first checked in
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*/
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#ifndef __SCSISTANDARD__
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#define __SCSISTANDARD__
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/********************************************************************/
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// General SCSI stuff
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/********************************************************************/
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// SCSI status
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#define scsiStatGood 0x00 // Good Status
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#define scsiStatCheckCondition 0x02 // Check Condition
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#define scsiStatConditionMet 0x04 // Condition Met
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#define scsiStatBusy 0x08 // Busy
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#define scsiStatIntermediate 0x10 // Intermediate
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#define scsiStatIntermedMet 0x14 // Intermediate - Condition Met
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#define scsiStatResvConflict 0x18 // Reservation conflict
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#define scsiStatTerminated 0x20 // Command terminated
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#define scsiStatQFull 0x28 // Queue full
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// SCSI messages
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typedef enum { kCmdCompleteMsg = 0,
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kExtendedMsg, // 0x01
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kSaveDataPointerMsg, // 0x02
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kRestorePointersMsg, // 0x03
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kDisconnectMsg, // 0x04
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kInitiatorDetectedErrorMsg, // 0x05
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kAbortMsg, // 0x06
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kMsgRejectMsg, // 0x07
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kNoOperationMsg, // 0x08
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kMsgParityErrorMsg, // 0x09
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kLinkedCmdCompleteMsg, // 0x0a
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kLinkedCmdCompleteWithFlagMsg, // 0x0b
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kBusDeviceResetMsg, // 0x0c
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kAbortTagMsg, // 0x0d
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kClearQueueMsg, // 0x0e
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kInitiateRecoveryMsg, // 0x0f
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kReleaseRecoveryMsg, // 0x10
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kTerminateIOProcessMsg, // 0x11
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kSimpleQueueTag = 0x20, // 0x20
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kHeadOfQueueTagMsg, // 0x21
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kOrderedQueueTagMsg, // 0x22
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kIgnoreWideResidueMsg // 0x23
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} SCSI1stMsg;
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// SCSI Phases - 1st 8 phases (thru MessageInPhase) are straight off the chip's phase bits
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typedef enum { kDataOutPhase, // 0
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kDataInPhase, // 1
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kCommandPhase, // 2
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kStatusPhase, // 3
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kPhaseIllegal0,
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kPhaseIllegal1,
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kMessageOutPhase, // 6
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kMessageInPhase, // 7
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kBusFreePhase, // 8
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kArbitratePhase, // 9
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kSelectPhase, // 0xA
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kMessageInPhaseNACK, // 0xB
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kSCSIphaseBogus = 256
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} SCSIphase;
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#endif __SCSISTANDARD__
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