Source to iokit/IOKit/scsi/scsi-parallel/SCSIParallelTarget.h

/*
 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 *
 * SCSIParallelTarget.h
 *
 */

#ifndef _SCSIPARALLELTARGET_H
#define _SCSIPARALLELTARGET_H

typedef struct SCSITarget
{
    queue_head_t	deviceList;
    
    UInt32		commandCount;
    UInt32		commandLimit;
    UInt32		commandLimitSave;

    IORWLock *		clientSem;
    IORWLock *		targetSem;

    UInt32		*tagArray;
    
    UInt32		negotiateState;
    IOReturn		negotiateResult;

    UInt32		state;

    SCSITargetParms	targetParmsCurrent;
    SCSITargetParms	targetParmsNew;

    UInt32		reqSenseCount;
    UInt32		reqSenseState;

    void		*targetPrivateData;

} SCSITarget;    

enum 
{
    kStateIdle,
    kStateIssue,
    kStatePending,
    kStateActive,
};

enum _cdbFlagsInternal
{
    kCDBFlagsEnableTagQueuing   = 0x80000000,
};


enum SCSICommandType
{
    kSCSICommandNone		= 0,
    kSCSICommandExecute,
    kSCSICommandReqSense,
    kSCSICommandAbort,
    kSCSICommandAbortAll,
    kSCSICommandDeviceReset,
    kSCSICommandBusReset,