/************************************************************

Created: Sunday, January 6, 1991 at 10:00 PM
    SCSI.h
    C Interface to the Macintosh Libraries


        Copyright Apple Computer, Inc.    1986-1990
        All rights reserved

************************************************************/


#ifndef __SCSI__
#define __SCSI__

#ifndef __TYPES__
#include <Types.h>
#endif


enum {

    scInc = 1,
    scNoInc = 2,
    scAdd = 3,
    scMove = 4,
    scLoop = 5,
    scNop = 6,
    scStop = 7,
    scComp = 8,
    scCommErr = 2,                  /*communications error, operation timeout*/
    scArbNBErr = 3,                 /*arbitration timeout waiting for not BSY*/
    scBadParmsErr = 4,              /*bad parameter or TIB opcode*/
    scPhaseErr = 5,                 /*SCSI bus not in correct phase for attempted operation*/
    scCompareErr = 6,               /*data compare error*/
    scMgrBusyErr = 7,               /*SCSI Manager busy */
    scSequenceErr = 8,              /*attempted operation is out of sequence*/
    scBusTOErr = 9,                 /*CPU bus timeout*/
    scComplPhaseErr = 10,           /*SCSI bus wasn't in Status phase*/
    sbSIGWord = 0x4552,
    pMapSIG = 0x504D
};

struct Block0 {
    unsigned short sbSig;           /*unique value for SCSI block 0*/
    unsigned short sbBlkSize;       /*block size of device*/
    unsigned long sbBlkCount;       /*number of blocks on device*/
    unsigned short sbDevType;       /*device type*/
    unsigned short sbDevId;         /*device id*/
    unsigned long sbData;           /*not used*/
    unsigned short sbDrvrCount;     /*driver descriptor count*/
    unsigned long ddBlock;          /*1st driver's starting block*/
    unsigned short ddSize;          /*size of 1st driver (512-byte blks)*/
    unsigned short ddType;          /*system type (1 for Mac+)*/
    unsigned short ddPad[243];      /*ARRAY[0..242] OF INTEGER; not used*/
};

typedef struct Block0 Block0;

struct Partition {
    unsigned short pmSig;           /*unique value for map entry blk*/
    unsigned short pmSigPad;        /*currently unused*/
    unsigned long pmMapBlkCnt;      /*# of blks in partition map*/
    unsigned long pmPyPartStart;    /*physical start blk of partition*/
    unsigned long pmPartBlkCnt;     /*# of blks in this partition*/
    unsigned char pmPartName[32];   /*ASCII partition name*/
    unsigned char pmParType[32];    /*ASCII partition type*/
    unsigned long pmLgDataStart;    /*log. # of partition's 1st data blk*/
    unsigned long pmDataCnt;        /*# of blks in partition's data area*/
    unsigned long pmPartStatus;     /*bit field for partition status*/
    unsigned long pmLgBootStart;    /*log. blk of partition's boot code*/
    unsigned long pmBootSize;       /*number of bytes in boot code*/
    unsigned long pmBootAddr;       /*memory load address of boot code*/
    unsigned long pmBootAddr2;      /*currently unused*/
    unsigned long pmBootEntry;      /*entry point of boot code*/
    unsigned long pmBootEntry2;     /*currently unused*/
    unsigned long pmBootCksum;      /*checksum of boot code*/
    unsigned char pmProcessor[16];  /*ASCII for the processor type*/
    unsigned short pmPad[188];      /*512 bytes long currently unused*/
};

typedef struct Partition Partition;

struct SCSIInstr {
    unsigned short scOpcode;
    unsigned long scParam1;
    unsigned long scParam2;
};

typedef struct SCSIInstr SCSIInstr;


#ifdef __cplusplus
extern "C" {
#endif
pascal OSErr SCSIReset(void)
    = {0x4267,0xA815}; 
pascal OSErr SCSIGet(void)
    = {0x3F3C,0x0001,0xA815}; 
pascal OSErr SCSISelect(short targetID)
    = {0x3F3C,0x0002,0xA815}; 
pascal OSErr SCSICmd(Ptr buffer,short count)
    = {0x3F3C,0x0003,0xA815}; 
pascal OSErr SCSIRead(Ptr tibPtr)
    = {0x3F3C,0x0005,0xA815}; 
pascal OSErr SCSIRBlind(Ptr tibPtr)
    = {0x3F3C,0x0008,0xA815}; 
pascal OSErr SCSIWrite(Ptr tibPtr)
    = {0x3F3C,0x0006,0xA815}; 
pascal OSErr SCSIWBlind(Ptr tibPtr)
    = {0x3F3C,0x0009,0xA815}; 
pascal OSErr SCSIComplete(short *stat,short *message,unsigned long wait)
    = {0x3F3C,0x0004,0xA815}; 
pascal short SCSIStat(void)
    = {0x3F3C,0x000A,0xA815}; 
pascal OSErr SCSISelAtn(short targetID)
    = {0x3F3C,0x000B,0xA815}; 
pascal OSErr SCSIMsgIn(short *message)
    = {0x3F3C,0x000C,0xA815}; 
pascal OSErr SCSIMsgOut(short message)
    = {0x3F3C,0x000D,0xA815}; 
#ifdef __cplusplus
}
#endif

#endif