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

   1 /*
   2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  *
  24  * SCSIParallelTarget.h
  25  *
  26  */
  27
  28 #ifndef _SCSIPARALLELTARGET_H
  29 #define _SCSIPARALLELTARGET_H
  30
  31 typedef struct SCSINegotiationResults
  32 {
  33     IOReturn            returnCode;
  34
  35     UInt32              transferPeriodpS;
  36     UInt32              transferOffset;
  37     UInt32              transferWidth;
  38     UInt32              transferOptions;
  39
  40 } SCSINegotiationResults;
  41
  42
  43 typedef struct SCSITarget
  44 {
  45     queue_head_t                deviceList;
  46
  47     UInt32                      commandCount;
  48     UInt32                      commandLimit;
  49     UInt32                      commandLimitSave;
  50
  51     IORWLock *                  clientSem;
  52     IORWLock *                  targetSem;
  53
  54     UInt32                      *tagArray;
  55
  56     UInt32                      negotiateState;
  57     SCSINegotiationResults      negotiationResult;
  58
  59     UInt32                      state;
  60
  61     SCSITargetParms             targetParmsCurrent;
  62     SCSITargetParms             targetParmsNew;
  63
  64     OSNumber                    *regObjTransferPeriod;
  65     OSNumber                    *regObjTransferOffset;
  66     OSNumber                    *regObjTransferWidth;
  67     OSNumber                    *regObjTransferOptions;
  68     OSNumber                    *regObjCmdQueue;
  69
  70     UInt32                      reqSenseCount;
  71     UInt32                      reqSenseState;
  72
  73     void                        *targetPrivateData;
  74
  75     bool                        targetAllocated;
  76
  77 } SCSITarget;
  78
  79 enum
  80 {
  81     kStateIdle,
  82     kStateIssue,
  83     kStatePending,
  84     kStateActive,
  85 };
  86
  87 enum _cdbFlagsInternal
  88 {
  89     kCDBFlagsEnableTagQueuing   = 0x80000000,
  90 };
  91
  92
  93 enum SCSICommandType
  94 {
  95     kSCSICommandNone            = 0,
  96     kSCSICommandExecute,
  97     kSCSICommandReqSense,
  98     kSCSICommandAbort,
  99     kSCSICommandAbortAll,
 100     kSCSICommandDeviceReset,
 101     kSCSICommandBusReset,
 102     kSCSICommandCancel,
 103 };
 104
 105
 106 #endif