/*                              SCSIGetMaxTargetID.c                            */

/*

 * SCSIGetMaxTargetID.c

 * Copyright © 1992-94 Apple Computer Inc. All Rights Reserved.

 */

#include "SCSISimpleSample.h"

/*

 * Get the last host bus adaptor. Returns zero (and noErr) for Old SCSI.

 */

OSErr

SCSIGetMaxTargetID(

        DeviceIdent                     scsiDevice,

        unsigned short                  *maxTarget

    )

{

        OSErr                           status;

        SCSIBusInquiryPB                busInquiryPB;       

#define PB                              (busInquiryPB)

        if (gEnableNewSCSIManager == FALSE || (scsiDevice.bus == 0)) {

            /*

             * It is possible for the "sophisticated user" to change

             * the initiator id from seven to some other value. This

             * allows a Macintosh to be used in a multiple-initiator

             * environment. We return seven in all cases, as the loop

             * in DoListSCSIDevices will skip over the initiator id.

             */

            *maxTarget = 7;

            status = noErr;

        }

        else {

            CLEAR(PB);

            PB.scsiPBLength = sizeof PB;

            PB.scsiFunctionCode = SCSIBusInquiry;

            PB.scsiDevice = scsiDevice;

            status = SCSIAction((SCSI_PB *) &PB);

            if (status == noErr)

                *maxTarget = PB.scsiMaxTarget;

        }

        return (status);

#undef PB

}