VOID
DiskFdoProcessError(
    PDEVICE_OBJECT DeviceObject,
    PSCSI_REQUEST_BLOCK Srb,
    NTSTATUS *Status,
    BOOLEAN *Retry
    );

NTSTATUS
DiskShutdownFlush(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );

NTSTATUS
DiskGetCacheInformation(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    IN PDISK_CACHE_INFORMATION CacheInfo
    );

NTSTATUS
DiskSetCacheInformation(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    IN PDISK_CACHE_INFORMATION CacheInfo
    );

VOID
DisableWriteCache(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIO_WORKITEM WorkItem
    );

VOID
DiskIoctlVerify(
    IN PDEVICE_OBJECT DeviceObject,
    IN PDISK_VERIFY_WORKITEM_CONTEXT Context
    );

NTSTATUS
DiskModeSelect(
    IN PDEVICE_OBJECT DeviceObject,
    IN PCHAR ModeSelectBuffer,
    IN ULONG Length,
    IN BOOLEAN SavePage
    );

//
// We need to validate that the self test subcommand is valid and
// appropriate. Right now we allow subcommands 0, 1 and 2 which are non
// captive mode tests. Once we figure out a way to know if it is safe to
// run a captive test then we can allow captive mode tests. Also if the
// atapi 5 spec is ever updated to denote that bit 7 is the captive
// mode bit, we can allow any request that does not have bit 7 set. Until
// that is done we want to be sure
//
#define DiskIsValidSmartSelfTest(Subcommand) \
    ( ((Subcommand) == SMART_OFFLINE_ROUTINE_OFFLINE) || \
      ((Subcommand) == SMART_SHORT_SELFTEST_OFFLINE) || \
      ((Subcommand) == SMART_EXTENDED_SELFTEST_OFFLINE) )


NTSTATUS
DiskPerformSmartCommand(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    IN ULONG SrbControlCode,
    IN UCHAR Command,
    IN UCHAR Feature,
    IN UCHAR SectorCount,
    IN UCHAR SectorNumber,
    IN OUT PSRB_IO_CONTROL SrbControl,
    OUT PULONG BufferSize
    );

NTSTATUS
DiskGetInfoExceptionInformation(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    OUT PMODE_INFO_EXCEPTIONS ReturnPageData
    );

NTSTATUS
DiskSetInfoExceptionInformation(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    IN PMODE_INFO_EXCEPTIONS PageData
    );

NTSTATUS
DiskDetectFailurePrediction(
    PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    PFAILURE_PREDICTION_METHOD FailurePredictCapability
    );

BOOLEAN
EnumerateBusKey(
    IN PFUNCTIONAL_DEVICE_EXTENSION DeviceExtension,
    HANDLE BusKey,
    PULONG DiskNumber
    );

NTSTATUS
DiskCreateFdo(
    IN PDRIVER_OBJECT DriverObject,
    IN PDEVICE_OBJECT LowerDeviceObject,
    IN PULONG DeviceCount,
    IN BOOLEAN DasdAccessOnly
    );

VOID
UpdateDeviceObjects(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );

VOID
DiskSetSpecialHacks(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    IN ULONG_PTR Data
    );

VOID
DiskScanRegistryForSpecial(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
    );

VOID
ResetBus(
    IN PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
DiskEnumerateDevice(
    IN PDEVICE_OBJECT Fdo
    );

NTSTATUS
DiskQueryId(
    IN PDEVICE_OBJECT Pdo,
    IN BUS_QUERY_ID_TYPE IdType,
    IN PUNICODE_STRING UnicodeIdString
    );

NTSTATUS
DiskQueryPnpCapabilities(
    IN PDEVICE_OBJECT DeviceObject,
    IN PDEVICE_CAPABILITIES Capabilities
    );

NTSTATUS
DiskGenerateDeviceName(
    IN BOOLEAN IsFdo,
    IN ULONG DeviceNumber,
    IN OPTIONAL ULONG PartitionNumber,
    IN OPTIONAL PLARGE_INTEGER StartingOffset,
    IN OPTIONAL PLARGE_INTEGER PartitionLength,
    OUT PUCHAR *RawName
    );

VOID
DiskCreateSymbolicLinks(
    IN PDEVICE_OBJECT DeviceObject
    );

VOID
DiskUpdatePartitions(
    IN PDEVICE_OBJECT Fdo,
    IN OUT PDRIVE_LAYOUT_INFORMATION_EX PartitionList
    );

VOID
DiskUpdateRemovablePartitions(
    IN PDEVICE_OBJECT Fdo,
    IN OUT PDRIVE_LAYOUT_INFORMATION_EX PartitionList
    );

NTSTATUS
DiskCreatePdo(
    IN PDEVICE_OBJECT Fdo,
    IN ULONG PartitionOrdinal,
    IN PPARTITION_INFORMATION_EX PartitionEntry,
    IN PARTITION_STYLE PartitionStyle,
    OUT PDEVICE_OBJECT *Pdo
    );

VOID
DiskDeleteSymbolicLinks(
    IN PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
DiskPdoQueryWmiRegInfo(
    IN PDEVICE_OBJECT DeviceObject,
    OUT ULONG *RegFlags,
    OUT PUNICODE_STRING InstanceName
    );

NTSTATUS
DiskPdoQueryWmiDataBlock(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN ULONG BufferAvail,
    OUT PUCHAR Buffer
    );

NTSTATUS
DiskPdoSetWmiDataBlock(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN ULONG BufferSize,
    IN PUCHAR Buffer
    );

NTSTATUS
DiskPdoSetWmiDataItem(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN ULONG DataItemId,
    IN ULONG BufferSize,
    IN PUCHAR Buffer
    );

NTSTATUS
DiskPdoExecuteWmiMethod(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN ULONG MethodId,
    IN ULONG InBufferSize,
    IN ULONG OutBufferSize,
    IN PUCHAR Buffer
    );

NTSTATUS
DiskFdoQueryWmiRegInfo(
    IN PDEVICE_OBJECT DeviceObject,
    OUT ULONG *RegFlags,
    OUT PUNICODE_STRING InstanceName
    );

NTSTATUS
DiskFdoQueryWmiRegInfoEx(
    IN PDEVICE_OBJECT DeviceObject,
    OUT ULONG *RegFlags,
    OUT PUNICODE_STRING InstanceName,
    OUT PUNICODE_STRING MofName
    );

NTSTATUS
DiskFdoQueryWmiDataBlock(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN ULONG BufferAvail,
    OUT PUCHAR Buffer
    );

NTSTATUS
DiskFdoSetWmiDataBlock(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN ULONG BufferSize,
    IN PUCHAR Buffer
    );

NTSTATUS
DiskFdoSetWmiDataItem(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN ULONG DataItemId,
    IN ULONG BufferSize,
    IN PUCHAR Buffer
    );

NTSTATUS
DiskFdoExecuteWmiMethod(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN ULONG MethodId,
    IN ULONG InBufferSize,
    IN ULONG OutBufferSize,
    IN PUCHAR Buffer
    );

NTSTATUS
DiskWmiFunctionControl(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG GuidIndex,
    IN CLASSENABLEDISABLEFUNCTION Function,
    IN BOOLEAN Enable
    );

NTSTATUS
DiskReadFailurePredictStatus(
    PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    PSTORAGE_FAILURE_PREDICT_STATUS DiskSmartStatus
    );

NTSTATUS
DiskReadFailurePredictData(
    PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    PSTORAGE_FAILURE_PREDICT_DATA DiskSmartData
    );

NTSTATUS
DiskEnableDisableFailurePrediction(
    PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    BOOLEAN Enable
    );

NTSTATUS
DiskEnableDisableFailurePredictPolling(
    PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    BOOLEAN Enable,
    ULONG PollTimeInSeconds
    );

VOID
DiskAcquirePartitioningLock(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
    );

VOID
DiskReleasePartitioningLock(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension
    );

NTSTATUS DiskInitializeReregistration(
    void
    );

extern GUIDREGINFO DiskWmiFdoGuidList[];
extern GUIDREGINFO DiskWmiPdoGuidList[];

#if defined(_X86_)
NTSTATUS
DiskReadDriveCapacity(
    IN PDEVICE_OBJECT Fdo
    );
#else
#define DiskReadDriveCapacity(Fdo)  ClassReadDriveCapacity(Fdo)
#endif


#if defined(_X86_)

#if 0
NTSTATUS
DiskQuerySuggestedLinkName(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );
#endif

NTSTATUS
DiskSaveDetectInfo(
    PDRIVER_OBJECT DriverObject
    );

VOID
DiskCleanupDetectInfo(
    IN PDRIVER_OBJECT DriverObject
    );

VOID
DiskDriverReinitialization (
    IN PDRIVER_OBJECT DriverObject,
    IN PVOID Nothing,
    IN ULONG Count
    );

#endif

VOID
DiskConvertPartitionToExtended(
    IN PPARTITION_INFORMATION Partition,
    OUT PPARTITION_INFORMATION_EX PartitionEx
    );

PDRIVE_LAYOUT_INFORMATION_EX
DiskConvertLayoutToExtended(
    IN CONST PDRIVE_LAYOUT_INFORMATION Layout
    );

PDRIVE_LAYOUT_INFORMATION
DiskConvertExtendedToLayout(
    IN CONST PDRIVE_LAYOUT_INFORMATION_EX LayoutEx
    );

NTSTATUS
DiskReadPartitionTableEx(
    IN PFUNCTIONAL_DEVICE_EXTENSION Fdo,
    IN BOOLEAN BypassCache,
    OUT PDRIVE_LAYOUT_INFORMATION_EX* DriveLayout
    );

NTSTATUS
DiskWritePartitionTableEx(
    IN PFUNCTIONAL_DEVICE_EXTENSION Fdo,
    IN PDRIVE_LAYOUT_INFORMATION_EX DriveLayout
    );

NTSTATUS
DiskSetPartitionInformationEx(
    IN PFUNCTIONAL_DEVICE_EXTENSION Fdo,
    IN ULONG PartitionNumber,
    IN struct _SET_PARTITION_INFORMATION_EX* PartitionInfo
    );

NTSTATUS
DiskSetPartitionInformation(
    IN PFUNCTIONAL_DEVICE_EXTENSION Fdo,
    IN ULONG SectorSize,
    IN ULONG PartitionNumber,
    IN ULONG PartitionType
    );

NTSTATUS
DiskVerifyPartitionTable(
    IN PFUNCTIONAL_DEVICE_EXTENSION Fdo,
    IN BOOLEAN FixErrors
    );

BOOLEAN
DiskInvalidatePartitionTable(
    IN PFUNCTIONAL_DEVICE_EXTENSION Fdo,
    IN BOOLEAN PartitionLockHeld
    );

#if defined (_X86_)
NTSTATUS
DiskGetDetectInfo(
    IN PFUNCTIONAL_DEVICE_EXTENSION FdoExtension,
    OUT PDISK_DETECTION_INFO DetectInfo
    );

NTSTATUS
DiskReadSignature(
    IN PDEVICE_OBJECT Fdo
    );

#else
#define DiskGetDetectInfo(FdoExtension, DetectInfo) (STATUS_UNSUCCESSFUL)
#endif


#define DiskHashGuid(Guid) (((PULONG) &Guid)[0] ^ ((PULONG) &Guid)[0] ^ ((PULONG) &Guid)[0] ^ ((PULONG) &Guid)[0])