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375 lines
5.9 KiB
C
375 lines
5.9 KiB
C
![]() |
/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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class.h
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Abstract:
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These are the structures and defines that are used in the
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SCSI class drivers.
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Author:
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Mike Glass (mglass)
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Jeff Havens (jhavens)
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Revision History:
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--*/
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#ifndef _CLASS_
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#include <ntdddisk.h>
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#include <ntddcdrm.h>
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#include <ntddtape.h>
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#include <ntddchgr.h>
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#include <ntddstor.h>
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#include "ntddscsi.h"
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#include <stdio.h>
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// begin_ntminitape
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#if DBG
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#define DebugPrint(x) ScsiDebugPrint x
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#else
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#define DebugPrint(x)
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#endif // DBG
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// end_ntminitape
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#ifdef POOL_TAGGING
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#undef ExAllocatePool
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#undef ExAllocatePoolWithQuota
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#define ExAllocatePool(a,b) ExAllocatePoolWithTag(a,b,'HscS')
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#define ExAllocatePoolWithQuota(a,b) ExAllocatePoolWithQuotaTag(a,b,'HscS')
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#endif
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#define MAXIMUM_RETRIES 4
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typedef
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VOID
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(*PCLASS_ERROR) (
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IN PDEVICE_OBJECT DeviceObject,
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IN PSCSI_REQUEST_BLOCK Srb,
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IN OUT NTSTATUS *Status,
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IN OUT BOOLEAN *Retry
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);
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typedef struct _DEVICE_EXTENSION {
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//
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// Back pointer to device object
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//
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PDEVICE_OBJECT DeviceObject;
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//
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// Pointer to port device object
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//
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PDEVICE_OBJECT PortDeviceObject;
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//
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// Length of partition in bytes
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//
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LARGE_INTEGER PartitionLength;
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//
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// Number of bytes before start of partition
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//
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LARGE_INTEGER StartingOffset;
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//
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// Bytes to skew all requests, since DM Driver has been placed on an IDE drive.
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//
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ULONG DMByteSkew;
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//
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// Sectors to skew all requests.
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//
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ULONG DMSkew;
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//
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// Flag to indicate whether DM driver has been located on an IDE drive.
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//
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BOOLEAN DMActive;
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//
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// Pointer to the specific class error routine.
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//
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PCLASS_ERROR ClassError;
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//
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// SCSI port driver capabilities
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//
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PIO_SCSI_CAPABILITIES PortCapabilities;
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//
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// Buffer for drive parameters returned in IO device control.
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//
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PDISK_GEOMETRY DiskGeometry;
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//
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// Back pointer to device object of physical device
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//
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PDEVICE_OBJECT PhysicalDevice;
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//
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// Request Sense Buffer
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//
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PSENSE_DATA SenseData;
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//
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// Request timeout in seconds;
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//
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ULONG TimeOutValue;
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//
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// System device number
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//
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ULONG DeviceNumber;
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//
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// Add default Srb Flags.
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//
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ULONG SrbFlags;
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//
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// Total number of SCSI protocol errors on the device.
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//
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ULONG ErrorCount;
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//
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// Spinlock for split requests
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//
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KSPIN_LOCK SplitRequestSpinLock;
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//
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// Zone header and spin lock for zoned SRB requests.
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//
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PZONE_HEADER SrbZone;
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PKSPIN_LOCK SrbZoneSpinLock;
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//
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// Lock count for removable media.
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//
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LONG LockCount;
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//
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// Scsi port number
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//
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UCHAR PortNumber;
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//
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// SCSI path id
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//
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UCHAR PathId;
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//
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// SCSI bus target id
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//
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UCHAR TargetId;
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//
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// SCSI bus logical unit number
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//
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UCHAR Lun;
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//
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// Log2 of sector size
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//
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UCHAR SectorShift;
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//
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// Flag to indicate that the device has write caching enabled.
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//
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BOOLEAN WriteCache;
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//
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// Build SCSI 1 or SCSI 2 CDBs
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//
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BOOLEAN UseScsi1;
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} DEVICE_EXTENSION, *PDEVICE_EXTENSION;
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//
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// Define context structure for asynchronous completions.
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//
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typedef struct _COMPLETION_CONTEXT {
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PDEVICE_OBJECT DeviceObject;
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SCSI_REQUEST_BLOCK Srb;
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}COMPLETION_CONTEXT, *PCOMPLETION_CONTEXT;
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NTSTATUS
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ScsiClassGetCapabilities(
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IN PDEVICE_OBJECT PortDeviceObject,
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OUT PIO_SCSI_CAPABILITIES *PortCapabilities
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);
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NTSTATUS
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ScsiClassGetInquiryData(
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IN PDEVICE_OBJECT PortDeviceObject,
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IN PSCSI_ADAPTER_BUS_INFO *ConfigInfo
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);
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NTSTATUS
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ScsiClassReadDriveCapacity(
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IN PDEVICE_OBJECT DeviceObject
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);
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VOID
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ScsiClassReleaseQueue(
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IN PDEVICE_OBJECT DeviceObject
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);
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NTSTATUS
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ScsiClassRemoveDevice(
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IN PDEVICE_OBJECT PortDeviceObject,
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IN UCHAR PathId,
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IN UCHAR TargetId,
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IN UCHAR Lun
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);
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NTSTATUS
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ScsiClassAsynchronousCompletion(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp,
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PVOID Context
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);
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VOID
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ScsiClassSplitRequest(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN ULONG MaximumBytes
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);
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NTSTATUS
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ScsiClassDeviceControl(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp
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);
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NTSTATUS
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ScsiClassIoComplete(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN PVOID Context
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);
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NTSTATUS
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ScsiClassIoCompleteAssociated(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN PVOID Context
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);
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BOOLEAN
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ScsiClassInterpretSenseInfo(
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IN PDEVICE_OBJECT DeviceObject,
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IN PSCSI_REQUEST_BLOCK Srb,
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IN UCHAR MajorFunctionCode,
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IN ULONG IoDeviceCode,
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IN ULONG RetryCount,
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OUT NTSTATUS *Status
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);
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NTSTATUS
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ScsiClassSendSrbSynchronous(
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PDEVICE_OBJECT DeviceObject,
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PSCSI_REQUEST_BLOCK Srb,
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PVOID BufferAddress,
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ULONG BufferLength,
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BOOLEAN WriteToDevice
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);
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NTSTATUS
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ScsiClassSendSrbAsynchronous(
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PDEVICE_OBJECT DeviceObject,
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PSCSI_REQUEST_BLOCK Srb,
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PIRP Irp,
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PVOID BufferAddress,
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ULONG BufferLength,
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BOOLEAN WriteToDevice
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);
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VOID
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ScsiClassBuildRequest(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp
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);
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ULONG
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ScsiClassModeSense(
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IN PDEVICE_OBJECT DeviceObject,
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IN PCHAR ModeSenseBuffer,
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IN ULONG Length,
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IN UCHAR PageMode
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);
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BOOLEAN
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ScsiClassModeSelect(
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IN PDEVICE_OBJECT DeviceObject,
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IN PCHAR ModeSelectBuffer,
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IN ULONG Length,
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IN BOOLEAN SavePage
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);
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PVOID
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ScsiClassFindModePage(
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IN PCHAR ModeSenseBuffer,
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IN ULONG Length,
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IN UCHAR PageMode
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);
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NTSTATUS
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ScsiClassClaimDevice(
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IN PDEVICE_OBJECT PortDeviceObject,
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IN PSCSI_INQUIRY_DATA LunInfo,
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IN BOOLEAN Release,
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OUT PDEVICE_OBJECT *NewPortDeviceObject OPTIONAL
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);
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NTSTATUS
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ScsiClassInternalIoControl (
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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#endif /* _CLASS_ */
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