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162 lines
4.6 KiB
C
162 lines
4.6 KiB
C
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/************************************************************
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Created: Saturday, July 27, 1991 at 6:39 PM
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SCSI.h
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C Interface to the Macintosh Libraries
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Copyright Apple Computer, Inc. 1986-1991
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All rights reserved
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This file is used in these builds: Mac32 BigBang Sys606
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Change History (most recent first):
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<SM2> 5/29/93 PW Adding sbMac constant and rearranged a little more logically.
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<6> 7/31/91 JL Updated Copyright.
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<5> 1/27/91 LN Checked in Database generate file from DSG.
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<4> 11/7/90 JL Changed all #defines to anonymous enums
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To Do:
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************************************************************/
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#ifndef __SCSI__
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#define __SCSI__
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#ifndef __TYPES__
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#include <Types.h>
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#endif
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/* TIB opcodes */
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enum {
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scInc = 1,
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scNoInc= 2,
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scAdd = 3,
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scMove = 4,
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scLoop = 5,
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scNop = 6,
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scStop = 7,
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scComp = 8
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};
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/* SCSI Manager errors */
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enum {
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scCommErr = 2, /*communications error, operation timeout*/
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scArbNBErr = 3, /*arbitration timeout waiting for not BSY*/
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scBadParmsErr = 4, /*bad parameter or TIB opcode*/
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scPhaseErr = 5, /*SCSI bus not in correct phase for attempted operation*/
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scCompareErr = 6, /*data compare error*/
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scMgrBusyErr = 7, /*SCSI Manager busy */
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scSequenceErr = 8, /*attempted operation is out of sequence*/
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scBusTOErr = 9, /*CPU bus timeout*/
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scComplPhaseErr= 10 /*SCSI bus wasn't in Status phase*/
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};
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/* Driver Descriptor Map */
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/* signature word for Block 0 */
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#define sbSIGWord 0x4552
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/* system type for Mac */
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#define sbMac 1
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struct Block0 {
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unsigned short sbSig; /*unique value for SCSI block 0*/
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unsigned short sbBlkSize; /*block size of device*/
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unsigned long sbBlkCount; /*number of blocks on device*/
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unsigned short sbDevType; /*device type*/
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unsigned short sbDevId; /*device id*/
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unsigned long sbData; /*not used*/
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unsigned short sbDrvrCount; /*driver descriptor count*/
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unsigned long ddBlock; /*1st driver's starting block*/
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unsigned short ddSize; /*size of 1st driver (512-byte blks)*/
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unsigned short ddType; /*system type (1 for Mac+)*/
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unsigned short ddPad[243]; /*ARRAY[0..242] OF INTEGER; not used*/
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};
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typedef struct Block0 Block0;
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/* Partition Map Entry */
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/* OLD partition map signature */
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#define pdSigWord 0x5453
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#define oldPMSigWord pdSigWord
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/* NEW partition map signature */
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#define pMapSIG 0x504D
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#define newPMSigWord pMapSIG
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struct Partition {
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unsigned short pmSig; /*unique value for map entry blk*/
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unsigned short pmSigPad; /*currently unused*/
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unsigned long pmMapBlkCnt; /*# of blks in partition map*/
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unsigned long pmPyPartStart; /*physical start blk of partition*/
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unsigned long pmPartBlkCnt; /*# of blks in this partition*/
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unsigned char pmPartName[32]; /*ASCII partition name*/
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unsigned char pmParType[32]; /*ASCII partition type*/
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unsigned long pmLgDataStart; /*log. # of partition's 1st data blk*/
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unsigned long pmDataCnt; /*# of blks in partition's data area*/
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unsigned long pmPartStatus; /*bit field for partition status*/
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unsigned long pmLgBootStart; /*log. blk of partition's boot code*/
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unsigned long pmBootSize; /*number of bytes in boot code*/
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unsigned long pmBootAddr; /*memory load address of boot code*/
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unsigned long pmBootAddr2; /*currently unused*/
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unsigned long pmBootEntry; /*entry point of boot code*/
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unsigned long pmBootEntry2; /*currently unused*/
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unsigned long pmBootCksum; /*checksum of boot code*/
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unsigned char pmProcessor[16]; /*ASCII for the processor type*/
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unsigned short pmPad[188]; /*512 bytes long currently unused*/
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};
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typedef struct Partition Partition;
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/* TIB instruction */
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struct SCSIInstr {
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unsigned short scOpcode;
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unsigned long scParam1;
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unsigned long scParam2;
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};
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typedef struct SCSIInstr SCSIInstr;
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#ifdef __cplusplus
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extern "C" {
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#endif
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pascal OSErr SCSIReset(void)
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= {0x4267,0xA815};
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pascal OSErr SCSIGet(void)
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= {0x3F3C,0x0001,0xA815};
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pascal OSErr SCSISelect(short targetID)
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= {0x3F3C,0x0002,0xA815};
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pascal OSErr SCSICmd(Ptr buffer,short count)
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= {0x3F3C,0x0003,0xA815};
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pascal OSErr SCSIRead(Ptr tibPtr)
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= {0x3F3C,0x0005,0xA815};
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pascal OSErr SCSIRBlind(Ptr tibPtr)
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= {0x3F3C,0x0008,0xA815};
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pascal OSErr SCSIWrite(Ptr tibPtr)
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= {0x3F3C,0x0006,0xA815};
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pascal OSErr SCSIWBlind(Ptr tibPtr)
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= {0x3F3C,0x0009,0xA815};
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pascal OSErr SCSIComplete(short *stat,short *message,unsigned long wait)
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= {0x3F3C,0x0004,0xA815};
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pascal short SCSIStat(void)
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= {0x3F3C,0x000A,0xA815};
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pascal OSErr SCSISelAtn(short targetID)
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= {0x3F3C,0x000B,0xA815};
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pascal OSErr SCSIMsgIn(short *message)
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= {0x3F3C,0x000C,0xA815};
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pascal OSErr SCSIMsgOut(short message)
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= {0x3F3C,0x000D,0xA815};
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#ifdef __cplusplus
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}
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#endif
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#endif
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