scsiport.c File Reference

#include "scsiport.h"
#include <debug.h>

Include dependency graph for scsiport.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
static BOOLEAN	SpiGetPciConfigData (IN PDRIVER_OBJECT DriverObject, IN PDEVICE_OBJECT DeviceObject, IN struct _HW_INITIALIZATION_DATA *HwInitializationData, IN OUT PPORT_CONFIGURATION_INFORMATION PortConfig, IN PUNICODE_STRING RegistryPath, IN ULONG BusNumber, IN OUT PPCI_SLOT_NUMBER NextSlotNumber)
static NTSTATUS NTAPI	ScsiPortCreateClose (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
static VOID NTAPI	ScsiPortIoTimer (PDEVICE_OBJECT DeviceObject, PVOID Context)
VOID NTAPI	SpiMiniportTimerDpc (IN struct _KDPC *Dpc, IN PVOID DeviceObject, IN PVOID SystemArgument1, IN PVOID SystemArgument2)
static NTSTATUS	SpiCreatePortConfig (PSCSI_PORT_DEVICE_EXTENSION DeviceExtension, PHW_INITIALIZATION_DATA HwInitData, PCONFIGURATION_INFO InternalConfigInfo, PPORT_CONFIGURATION_INFORMATION ConfigInfo, BOOLEAN FirstCall)
NTSTATUS NTAPI	SpQueryDeviceCallout (IN PVOID Context, IN PUNICODE_STRING PathName, IN INTERFACE_TYPE BusType, IN ULONG BusNumber, IN PKEY_VALUE_FULL_INFORMATION *BusInformation, IN CONFIGURATION_TYPE ControllerType, IN ULONG ControllerNumber, IN PKEY_VALUE_FULL_INFORMATION *ControllerInformation, IN CONFIGURATION_TYPE PeripheralType, IN ULONG PeripheralNumber, IN PKEY_VALUE_FULL_INFORMATION *PeripheralInformation)
static VOID	SpiParseDeviceInfo (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension, IN HANDLE Key, IN PPORT_CONFIGURATION_INFORMATION ConfigInfo, IN PCONFIGURATION_INFO InternalConfigInfo, IN PUCHAR Buffer)
static VOID	SpiResourceToConfig (IN PHW_INITIALIZATION_DATA HwInitializationData, IN PCM_FULL_RESOURCE_DESCRIPTOR ResourceDescriptor, IN PPORT_CONFIGURATION_INFORMATION PortConfig)
static PCM_RESOURCE_LIST	SpiConfigToResource (PSCSI_PORT_DEVICE_EXTENSION DeviceExtension, PPORT_CONFIGURATION_INFORMATION PortConfig)
static NTSTATUS	SpiAllocateCommonBuffer (PSCSI_PORT_DEVICE_EXTENSION DeviceExtension, ULONG NonCachedSize)
NTHALAPI ULONG NTAPI	HalGetBusData (BUS_DATA_TYPE, ULONG, ULONG, PVOID, ULONG)
NTHALAPI ULONG NTAPI	HalGetInterruptVector (INTERFACE_TYPE, ULONG, ULONG, ULONG, PKIRQL, PKAFFINITY)
NTHALAPI NTSTATUS NTAPI	HalAssignSlotResources (PUNICODE_STRING, PUNICODE_STRING, PDRIVER_OBJECT, PDEVICE_OBJECT, INTERFACE_TYPE, ULONG, ULONG, PCM_RESOURCE_LIST *)
NTSTATUS NTAPI	DriverEntry (IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)
VOID NTAPI	ScsiPortUnload (_In_ PDRIVER_OBJECT DriverObject)
NTSTATUS NTAPI	ScsiPortDispatchPnp (PDEVICE_OBJECT DeviceObject, PIRP Irp)
NTSTATUS NTAPI	ScsiPortAddDevice (_In_ PDRIVER_OBJECT DriverObject, _In_ PDEVICE_OBJECT PhysicalDeviceObject)
VOID	ScsiDebugPrint (IN ULONG DebugPrintLevel, IN PCHAR DebugMessage,...)
VOID NTAPI	SpiCompleteRequest (IN PVOID HwDeviceExtension, IN PSCSI_REQUEST_BLOCK_INFO SrbInfo, IN UCHAR SrbStatus)
VOID NTAPI	ScsiPortCompleteRequest (IN PVOID HwDeviceExtension, IN UCHAR PathId, IN UCHAR TargetId, IN UCHAR Lun, IN UCHAR SrbStatus)
VOID NTAPI	ScsiPortFlushDma (IN PVOID HwDeviceExtension)
VOID NTAPI	ScsiPortFreeDeviceBase (IN PVOID HwDeviceExtension, IN PVOID MappedAddress)
ULONG NTAPI	ScsiPortGetBusData (IN PVOID DeviceExtension, IN ULONG BusDataType, IN ULONG SystemIoBusNumber, IN ULONG SlotNumber, IN PVOID Buffer, IN ULONG Length)
ULONG NTAPI	ScsiPortSetBusDataByOffset (IN PVOID DeviceExtension, IN ULONG BusDataType, IN ULONG SystemIoBusNumber, IN ULONG SlotNumber, IN PVOID Buffer, IN ULONG Offset, IN ULONG Length)
PVOID NTAPI	ScsiPortGetDeviceBase (IN PVOID HwDeviceExtension, IN INTERFACE_TYPE BusType, IN ULONG SystemIoBusNumber, IN SCSI_PHYSICAL_ADDRESS IoAddress, IN ULONG NumberOfBytes, IN BOOLEAN InIoSpace)
PVOID NTAPI	ScsiPortGetLogicalUnit (IN PVOID HwDeviceExtension, IN UCHAR PathId, IN UCHAR TargetId, IN UCHAR Lun)
SCSI_PHYSICAL_ADDRESS NTAPI	ScsiPortGetPhysicalAddress (IN PVOID HwDeviceExtension, IN PSCSI_REQUEST_BLOCK Srb OPTIONAL, IN PVOID VirtualAddress, OUT ULONG *Length)
PSCSI_REQUEST_BLOCK NTAPI	ScsiPortGetSrb (IN PVOID DeviceExtension, IN UCHAR PathId, IN UCHAR TargetId, IN UCHAR Lun, IN LONG QueueTag)
PVOID NTAPI	ScsiPortGetUncachedExtension (IN PVOID HwDeviceExtension, IN PPORT_CONFIGURATION_INFORMATION ConfigInfo, IN ULONG NumberOfBytes)
PVOID NTAPI	ScsiPortGetVirtualAddress (IN PVOID HwDeviceExtension, IN SCSI_PHYSICAL_ADDRESS PhysicalAddress)
ULONG NTAPI	ScsiPortInitialize (IN PVOID Argument1, IN PVOID Argument2, IN struct _HW_INITIALIZATION_DATA *HwInitializationData, IN PVOID HwContext)
VOID NTAPI	ScsiPortIoMapTransfer (IN PVOID HwDeviceExtension, IN PSCSI_REQUEST_BLOCK Srb, IN PVOID LogicalAddress, IN ULONG Length)
VOID NTAPI	ScsiPortLogError (IN PVOID HwDeviceExtension, IN PSCSI_REQUEST_BLOCK Srb OPTIONAL, IN UCHAR PathId, IN UCHAR TargetId, IN UCHAR Lun, IN ULONG ErrorCode, IN ULONG UniqueId)
VOID NTAPI	ScsiPortMoveMemory (OUT PVOID Destination, IN PVOID Source, IN ULONG Length)
VOID	ScsiPortNotification (IN SCSI_NOTIFICATION_TYPE NotificationType, IN PVOID HwDeviceExtension,...)
BOOLEAN NTAPI	ScsiPortValidateRange (IN PVOID HwDeviceExtension, IN INTERFACE_TYPE BusType, IN ULONG SystemIoBusNumber, IN SCSI_PHYSICAL_ADDRESS IoAddress, IN ULONG NumberOfBytes, IN BOOLEAN InIoSpace)
IO_ALLOCATION_ACTION NTAPI	SpiAdapterControl (PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID MapRegisterBase, PVOID Context)
BOOLEAN NTAPI	ScsiPortIsr (_In_ PKINTERRUPT Interrupt, _In_ PVOID ServiceContext)
BOOLEAN NTAPI	SpiProcessTimeout (PVOID ServiceContext)
BOOLEAN NTAPI	SpiResetBus (PVOID ServiceContext)
IO_ALLOCATION_ACTION NTAPI	ScsiPortAllocateAdapterChannel (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID MapRegisterBase, IN PVOID Context)
ULONG NTAPI	ScsiPortConvertPhysicalAddressToUlong (IN SCSI_PHYSICAL_ADDRESS Address)

Variables
ULONG	InternalDebugLevel = 0x00

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 14 of file scsiport.c.

Function Documentation

DriverEntry()

NTSTATUS NTAPI DriverEntry	(	IN PDRIVER_OBJECT	DriverObject,
		IN PUNICODE_STRING	RegistryPath
	)

Definition at line 113 of file scsiport.c.

{
    return STATUS_SUCCESS;
}

HalAssignSlotResources()

NTHALAPI NTSTATUS NTAPI HalAssignSlotResources	(	PUNICODE_STRING	,
		PUNICODE_STRING	,
		PDRIVER_OBJECT	,
		PDEVICE_OBJECT	,
		INTERFACE_TYPE	,
		ULONG	,
		ULONG	,
		PCM_RESOURCE_LIST *
	)

Referenced by SpiGetPciConfigData(), UniataClaimLegacyPCIIDE(), and VideoPortGetAccessRanges().

HalGetBusData()

NTHALAPI ULONG NTAPI HalGetBusData	(	BUS_DATA_TYPE	,
		ULONG	,
		ULONG	,
		PVOID	,
		ULONG
	)

Referenced by AtapiChipInit(), AtapiFindDev(), AtapiFindListedDev(), FdoEnumerateDevices(), HalpGetISAFixedPCIIrq(), IntVideoPortGetLegacyResources(), NdisReadEisaSlotInformation(), PdoQueryResourceRequirements(), PdoQueryResources(), ScsiPortGetBusData(), ScsiPortGetBusDataByOffset(), SpiGetPciConfigData(), UniataEnableIoPCI(), UniataEnumBusMasterController__(), UniataFindBusMasterController(), and VideoPortGetAccessRanges().

HalGetInterruptVector()

NTHALAPI ULONG NTAPI HalGetInterruptVector	(	INTERFACE_TYPE	,
		ULONG	,
		ULONG	,
		ULONG	,
		PKIRQL	,
		PKAFFINITY
	)

Referenced by AcpiOsInstallInterruptHandler(), AddControllers(), EnableIrq(), FdoCallHWInitialize(), FstubTranslateRequirement(), FstubTranslateResource(), HalpGetPCIIntOnISABus(), IntVideoPortSetupInterrupt(), IopTranslateDeviceResources(), LegacyAttachInterrupt(), NdisMRegisterInterrupt(), sb16_play(), and UniataConnectIntr2().

ScsiDebugPrint()

VOID ScsiDebugPrint	(	IN ULONG	DebugPrintLevel,
		IN PCHAR	DebugMessage,
			...
	)

Definition at line 183 of file scsiport.c.

{
    char Buffer[256];
    va_list ap;
 
    if (DebugPrintLevel > InternalDebugLevel)
        return;
 
    va_start(ap, DebugMessage);
    vsprintf(Buffer, DebugMessage, ap);
    va_end(ap);
 
    DbgPrint(Buffer);
}

ScsiPortAddDevice()

NTSTATUS NTAPI ScsiPortAddDevice	(	_In_ PDRIVER_OBJECT	DriverObject,
		_In_ PDEVICE_OBJECT	PhysicalDeviceObject
	)

Definition at line 145 of file scsiport.c.

{
 
    DPRINT("AddDevice no-op DriverObj: %p, PDO: %p\n", DriverObject, PhysicalDeviceObject);
 
    return STATUS_SUCCESS;
}

Referenced by ScsiPortInitialize().

ScsiPortAllocateAdapterChannel()

IO_ALLOCATION_ACTION NTAPI ScsiPortAllocateAdapterChannel	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp,
		IN PVOID	MapRegisterBase,
		IN PVOID	Context
	)

Definition at line 3020 of file scsiport.c.

{
    KIRQL Irql;
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
 
    /* Guard access with the spinlock */
    KeAcquireSpinLock(&DeviceExtension->SpinLock, &Irql);
 
    /* Save MapRegisterBase we've got here */
    DeviceExtension->MapRegisterBase = MapRegisterBase;
 
    /* Start pending request */
    KeSynchronizeExecution(DeviceExtension->Interrupt[0],
        ScsiPortStartPacket, DeviceObject);
 
    /* Release spinlock we took */
    KeReleaseSpinLock(&DeviceExtension->SpinLock, Irql);
 
    return KeepObject;
}

Referenced by ScsiPortStartIo().

ScsiPortCompleteRequest()

VOID NTAPI ScsiPortCompleteRequest	(	IN PVOID	HwDeviceExtension,
		IN UCHAR	PathId,
		IN UCHAR	TargetId,
		IN UCHAR	Lun,
		IN UCHAR	SrbStatus
	)

Definition at line 231 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    PSCSI_PORT_LUN_EXTENSION LunExtension;
    PSCSI_REQUEST_BLOCK_INFO SrbInfo;
    PLIST_ENTRY ListEntry;
 
    DPRINT("ScsiPortCompleteRequest() called\n");
 
    DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
                                        SCSI_PORT_DEVICE_EXTENSION,
                                        MiniPortDeviceExtension);
 
    /* Go through all buses */
    for (UINT8 pathId = 0; pathId < DeviceExtension->NumberOfBuses; pathId++)
    {
        PSCSI_BUS_INFO bus = &DeviceExtension->Buses[pathId];
 
        /* Go through all logical units */
        for (PLIST_ENTRY lunEntry = bus->LunsListHead.Flink;
             lunEntry != &bus->LunsListHead;
             lunEntry = lunEntry->Flink)
        {
            LunExtension = CONTAINING_RECORD(lunEntry, SCSI_PORT_LUN_EXTENSION, LunEntry);
 
            /* Now match what caller asked with what we are at now */
            if ((PathId == SP_UNTAGGED || PathId == LunExtension->PathId) &&
                (TargetId == SP_UNTAGGED || TargetId == LunExtension->TargetId) &&
                (Lun == SP_UNTAGGED || Lun == LunExtension->Lun))
            {
                /* Yes, that's what caller asked for. Complete abort requests */
                if (LunExtension->CompletedAbortRequests)
                {
                    /* TODO: Save SrbStatus in this request */
                    DPRINT1("Completing abort request without setting SrbStatus!\n");
 
                    /* Issue a notification request */
                    ScsiPortNotification(RequestComplete,
                                         HwDeviceExtension,
                                         LunExtension->CompletedAbortRequests);
                }
 
                /* Complete the request using our helper */
                SpiCompleteRequest(HwDeviceExtension,
                                   &LunExtension->SrbInfo,
                                   SrbStatus);
 
                /* Go through the queue and complete everything there too */
                ListEntry = LunExtension->SrbInfo.Requests.Flink;
                while (ListEntry != &LunExtension->SrbInfo.Requests)
                {
                    /* Get the actual SRB info entry */
                    SrbInfo = CONTAINING_RECORD(ListEntry,
                                                SCSI_REQUEST_BLOCK_INFO,
                                                Requests);
 
                    /* Complete it */
                    SpiCompleteRequest(HwDeviceExtension,
                                       SrbInfo,
                                       SrbStatus);
 
                    /* Advance to the next request in queue */
                    ListEntry = SrbInfo->Requests.Flink;
                }
            }
        }
    }
}

ScsiPortConvertPhysicalAddressToUlong()

ULONG NTAPI ScsiPortConvertPhysicalAddressToUlong

(

IN SCSI_PHYSICAL_ADDRESS

Address

)

Definition at line 3049 of file scsiport.c.

{
  DPRINT("ScsiPortConvertPhysicalAddressToUlong()\n");
  return(Address.u.LowPart);
}

ScsiPortCreateClose()

static NTSTATUS NTAPI ScsiPortCreateClose ( IN PDEVICE_OBJECT  DeviceObject, IN PIRP  Irp  )

static

Definition at line 2024 of file scsiport.c.

{
    DPRINT("ScsiPortCreateClose()\n");
 
    Irp->IoStatus.Status = STATUS_SUCCESS;
    IoCompleteRequest(Irp, IO_NO_INCREMENT);
 
    return STATUS_SUCCESS;
}

Referenced by ScsiPortInitialize().

ScsiPortDispatchPnp()

NTSTATUS NTAPI ScsiPortDispatchPnp	(	PDEVICE_OBJECT	DeviceObject,
		PIRP	Irp
	)

Definition at line 129 of file scsiport.c.

{
    if (((PSCSI_PORT_COMMON_EXTENSION)DeviceObject->DeviceExtension)->IsFDO)
    {
        return FdoDispatchPnp(DeviceObject, Irp);
    }
    else
    {
        return PdoDispatchPnp(DeviceObject, Irp);
    }
}

Referenced by ScsiPortInitialize().

ScsiPortFlushDma()

VOID NTAPI ScsiPortFlushDma

(

IN PVOID

HwDeviceExtension

)

Definition at line 308 of file scsiport.c.

{
  DPRINT("ScsiPortFlushDma()\n");
  UNIMPLEMENTED;
}

ScsiPortFreeDeviceBase()

VOID NTAPI ScsiPortFreeDeviceBase	(	IN PVOID	HwDeviceExtension,
		IN PVOID	MappedAddress
	)

Definition at line 319 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    PMAPPED_ADDRESS NextMa, LastMa;
 
    //DPRINT("ScsiPortFreeDeviceBase() called\n");
 
    DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
                                        SCSI_PORT_DEVICE_EXTENSION,
                                        MiniPortDeviceExtension);
 
    /* Initialize our pointers */
    NextMa = DeviceExtension->MappedAddressList;
    LastMa = NextMa;
 
    while (NextMa)
    {
        if (NextMa->MappedAddress == MappedAddress)
        {
            /* Unmap it first */
            MmUnmapIoSpace(MappedAddress, NextMa->NumberOfBytes);
 
            /* Remove it from the list */
            if (NextMa == DeviceExtension->MappedAddressList)
            {
                /* Remove the first entry */
                DeviceExtension->MappedAddressList = NextMa->NextMappedAddress;
            }
            else
            {
                LastMa->NextMappedAddress = NextMa->NextMappedAddress;
            }
 
            /* Free the resources and quit */
            ExFreePool(NextMa);
 
            return;
        }
        else
        {
            LastMa = NextMa;
            NextMa = NextMa->NextMappedAddress;
        }
    }
}

ScsiPortGetBusData()

ULONG NTAPI ScsiPortGetBusData	(	IN PVOID	DeviceExtension,
		IN ULONG	BusDataType,
		IN ULONG	SystemIoBusNumber,
		IN ULONG	SlotNumber,
		IN PVOID	Buffer,
		IN ULONG	Length
	)

Definition at line 371 of file scsiport.c.

{
    DPRINT("ScsiPortGetBusData()\n");
 
    if (Length)
    {
        /* If Length is non-zero, just forward the call to
        HalGetBusData() function */
        return HalGetBusData(BusDataType,
                             SystemIoBusNumber,
                             SlotNumber,
                             Buffer,
                             Length);
    }
 
    /* We have a more complex case here */
    UNIMPLEMENTED;
    return 0;
}

ScsiPortGetDeviceBase()

PVOID NTAPI ScsiPortGetDeviceBase	(	IN PVOID	HwDeviceExtension,
		IN INTERFACE_TYPE	BusType,
		IN ULONG	SystemIoBusNumber,
		IN SCSI_PHYSICAL_ADDRESS	IoAddress,
		IN ULONG	NumberOfBytes,
		IN BOOLEAN	InIoSpace
	)

Definition at line 421 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    PHYSICAL_ADDRESS TranslatedAddress;
    PMAPPED_ADDRESS DeviceBase;
    ULONG AddressSpace;
    PVOID MappedAddress;
 
    //DPRINT ("ScsiPortGetDeviceBase() called\n");
 
    DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
                                        SCSI_PORT_DEVICE_EXTENSION,
                                        MiniPortDeviceExtension);
 
    AddressSpace = (ULONG)InIoSpace;
    if (HalTranslateBusAddress(BusType,
                               SystemIoBusNumber,
                               IoAddress,
                               &AddressSpace,
                               &TranslatedAddress) == FALSE)
    {
        return NULL;
    }
 
    /* i/o space */
    if (AddressSpace != 0)
        return((PVOID)(ULONG_PTR)TranslatedAddress.QuadPart);
 
    MappedAddress = MmMapIoSpace(TranslatedAddress,
                                 NumberOfBytes,
                                 FALSE);
 
    DeviceBase = ExAllocatePoolWithTag(NonPagedPool,
                                sizeof(MAPPED_ADDRESS), TAG_SCSIPORT);
 
    if (DeviceBase == NULL)
        return MappedAddress;
 
    DeviceBase->MappedAddress = MappedAddress;
    DeviceBase->NumberOfBytes = NumberOfBytes;
    DeviceBase->IoAddress = IoAddress;
    DeviceBase->BusNumber = SystemIoBusNumber;
 
    /* Link it to the Device Extension list */
    DeviceBase->NextMappedAddress = DeviceExtension->MappedAddressList;
    DeviceExtension->MappedAddressList = DeviceBase;
 
    return MappedAddress;
}

ScsiPortGetLogicalUnit()

PVOID NTAPI ScsiPortGetLogicalUnit	(	IN PVOID	HwDeviceExtension,
		IN UCHAR	PathId,
		IN UCHAR	TargetId,
		IN UCHAR	Lun
	)

Definition at line 480 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    PSCSI_PORT_LUN_EXTENSION LunExtension;
 
    DPRINT("ScsiPortGetLogicalUnit() called\n");
 
    DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
                                        SCSI_PORT_DEVICE_EXTENSION,
                                        MiniPortDeviceExtension);
 
    /* Check the extension size */
    if (!DeviceExtension->LunExtensionSize)
    {
        /* They didn't want one */
        return NULL;
    }
 
    LunExtension = GetLunByPath(DeviceExtension, PathId, TargetId, Lun);
 
    /* Check that the logical unit exists */
    if (!LunExtension)
    {
        /* Nope, return NULL */
        return NULL;
    }
 
    /* Return the logical unit miniport extension */
    return (LunExtension + 1);
}

ScsiPortGetPhysicalAddress()

SCSI_PHYSICAL_ADDRESS NTAPI ScsiPortGetPhysicalAddress	(	IN PVOID	HwDeviceExtension,
		IN PSCSI_REQUEST_BLOCK Srb	OPTIONAL,
		IN PVOID	VirtualAddress,
		OUT ULONG *	Length
	)

Definition at line 519 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    SCSI_PHYSICAL_ADDRESS PhysicalAddress;
    SIZE_T BufferLength = 0;
    ULONG_PTR Offset;
    PSCSI_SG_ADDRESS SGList;
    PSCSI_REQUEST_BLOCK_INFO SrbInfo;
 
    DPRINT("ScsiPortGetPhysicalAddress(%p %p %p %p)\n",
        HwDeviceExtension, Srb, VirtualAddress, Length);
 
    DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
                                        SCSI_PORT_DEVICE_EXTENSION,
                                        MiniPortDeviceExtension);
 
    if (Srb == NULL || Srb->SenseInfoBuffer == VirtualAddress)
    {
        /* Simply look it up in the allocated common buffer */
        Offset = (PUCHAR)VirtualAddress - (PUCHAR)DeviceExtension->SrbExtensionBuffer;
 
        BufferLength = DeviceExtension->CommonBufferLength - Offset;
        PhysicalAddress.QuadPart = DeviceExtension->PhysicalAddress.QuadPart + Offset;
    }
    else if (DeviceExtension->MapRegisters)
    {
        PIO_STACK_LOCATION IoStack = IoGetCurrentIrpStackLocation(Srb->OriginalRequest);
        PSCSI_PORT_LUN_EXTENSION LunExtension = IoStack->DeviceObject->DeviceExtension;
        ASSERT(LunExtension && !LunExtension->Common.IsFDO);
 
        /* Scatter-gather list must be used */
        SrbInfo = SpiGetSrbData(DeviceExtension, LunExtension, Srb->QueueTag);
 
        SGList = SrbInfo->ScatterGather;
 
        /* Find needed item in the SG list */
        Offset = (PCHAR)VirtualAddress - (PCHAR)Srb->DataBuffer;
        while (Offset >= SGList->Length)
        {
            Offset -= SGList->Length;
            SGList++;
        }
 
        /* We're done, store length and physical address */
        BufferLength = SGList->Length - Offset;
        PhysicalAddress.QuadPart = SGList->PhysicalAddress.QuadPart + Offset;
    }
    else
    {
        /* Nothing */
        PhysicalAddress.QuadPart = (LONGLONG)(SP_UNINITIALIZED_VALUE);
    }
 
    *Length = (ULONG)BufferLength;
    return PhysicalAddress;
}

ScsiPortGetSrb()

PSCSI_REQUEST_BLOCK NTAPI ScsiPortGetSrb	(	IN PVOID	DeviceExtension,
		IN UCHAR	PathId,
		IN UCHAR	TargetId,
		IN UCHAR	Lun,
		IN LONG	QueueTag
	)

Definition at line 584 of file scsiport.c.

{
  DPRINT1("ScsiPortGetSrb() unimplemented\n");
  UNIMPLEMENTED;
  return NULL;
}

ScsiPortGetUncachedExtension()

PVOID NTAPI ScsiPortGetUncachedExtension	(	IN PVOID	HwDeviceExtension,
		IN PPORT_CONFIGURATION_INFORMATION	ConfigInfo,
		IN ULONG	NumberOfBytes
	)

Definition at line 600 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    DEVICE_DESCRIPTION DeviceDescription;
    ULONG MapRegistersCount;
    NTSTATUS Status;
 
    DPRINT("ScsiPortGetUncachedExtension(%p %p %lu)\n",
        HwDeviceExtension, ConfigInfo, NumberOfBytes);
 
    DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
                                        SCSI_PORT_DEVICE_EXTENSION,
                                        MiniPortDeviceExtension);
 
    /* Check for allocated common DMA buffer */
    if (DeviceExtension->SrbExtensionBuffer != NULL)
    {
        DPRINT1("The HBA has already got a common DMA buffer!\n");
        return NULL;
    }
 
    /* Check for DMA adapter object */
    if (DeviceExtension->AdapterObject == NULL)
    {
        /* Initialize DMA adapter description */
        RtlZeroMemory(&DeviceDescription, sizeof(DEVICE_DESCRIPTION));
 
        DeviceDescription.Version = DEVICE_DESCRIPTION_VERSION;
        DeviceDescription.Master = ConfigInfo->Master;
        DeviceDescription.ScatterGather = ConfigInfo->ScatterGather;
        DeviceDescription.DemandMode = ConfigInfo->DemandMode;
        DeviceDescription.Dma32BitAddresses = ConfigInfo->Dma32BitAddresses;
        DeviceDescription.BusNumber = ConfigInfo->SystemIoBusNumber;
        DeviceDescription.DmaChannel = ConfigInfo->DmaChannel;
        DeviceDescription.InterfaceType = ConfigInfo->AdapterInterfaceType;
        DeviceDescription.DmaWidth = ConfigInfo->DmaWidth;
        DeviceDescription.DmaSpeed = ConfigInfo->DmaSpeed;
        DeviceDescription.MaximumLength = ConfigInfo->MaximumTransferLength;
        DeviceDescription.DmaPort = ConfigInfo->DmaPort;
 
        /* Get a DMA adapter object */
        DeviceExtension->AdapterObject =
            HalGetAdapter(&DeviceDescription, &MapRegistersCount);
 
        /* Fail in case of error */
        if (DeviceExtension->AdapterObject == NULL)
        {
            DPRINT1("HalGetAdapter() failed\n");
            return NULL;
        }
 
        /* Set number of physical breaks */
        if (ConfigInfo->NumberOfPhysicalBreaks != 0 &&
            MapRegistersCount > ConfigInfo->NumberOfPhysicalBreaks)
        {
            DeviceExtension->PortCapabilities.MaximumPhysicalPages =
                ConfigInfo->NumberOfPhysicalBreaks;
        }
        else
        {
            DeviceExtension->PortCapabilities.MaximumPhysicalPages = MapRegistersCount;
        }
    }
 
    /* Update auto request sense feature */
    DeviceExtension->SupportsAutoSense = ConfigInfo->AutoRequestSense;
 
    /* Update Srb extension size */
    if (DeviceExtension->SrbExtensionSize != ConfigInfo->SrbExtensionSize)
        DeviceExtension->SrbExtensionSize = ConfigInfo->SrbExtensionSize;
 
    /* Update Srb extension alloc flag */
    if (ConfigInfo->AutoRequestSense || DeviceExtension->SrbExtensionSize)
        DeviceExtension->NeedSrbExtensionAlloc = TRUE;
 
    /* Allocate a common DMA buffer */
    Status = SpiAllocateCommonBuffer(DeviceExtension, NumberOfBytes);
 
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("SpiAllocateCommonBuffer() failed with Status = 0x%08X!\n", Status);
        return NULL;
    }
 
    return DeviceExtension->NonCachedExtension;
}

ScsiPortGetVirtualAddress()

PVOID NTAPI ScsiPortGetVirtualAddress	(	IN PVOID	HwDeviceExtension,
		IN SCSI_PHYSICAL_ADDRESS	PhysicalAddress
	)

Definition at line 782 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    ULONG Offset;
 
    DPRINT("ScsiPortGetVirtualAddress(%p %I64x)\n",
        HwDeviceExtension, PhysicalAddress.QuadPart);
 
    DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
                                        SCSI_PORT_DEVICE_EXTENSION,
                                        MiniPortDeviceExtension);
 
    if (DeviceExtension->PhysicalAddress.QuadPart > PhysicalAddress.QuadPart)
        return NULL;
 
    Offset = (ULONG)(PhysicalAddress.QuadPart - DeviceExtension->PhysicalAddress.QuadPart);
 
    if (Offset >= DeviceExtension->CommonBufferLength)
        return NULL;
 
    return (PVOID)((ULONG_PTR)DeviceExtension->SrbExtensionBuffer + Offset);
}

ScsiPortInitialize()

ULONG NTAPI ScsiPortInitialize	(	IN PVOID	Argument1,
		IN PVOID	Argument2,
		IN struct _HW_INITIALIZATION_DATA *	HwInitializationData,
		IN PVOID	HwContext
	)

Definition at line 836 of file scsiport.c.

{
    PDRIVER_OBJECT DriverObject = (PDRIVER_OBJECT)Argument1;
    PUNICODE_STRING RegistryPath = (PUNICODE_STRING)Argument2;
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension = NULL;
    PCONFIGURATION_INFORMATION SystemConfig;
    PPORT_CONFIGURATION_INFORMATION PortConfig;
    CONFIGURATION_INFO ConfigInfo;
    ULONG DeviceExtensionSize;
    ULONG PortConfigSize;
    BOOLEAN Again;
    BOOLEAN DeviceFound = FALSE;
    BOOLEAN FirstConfigCall = TRUE;
    ULONG Result;
    NTSTATUS Status;
    ULONG MaxBus;
    PCI_SLOT_NUMBER SlotNumber;
 
    PDEVICE_OBJECT PortDeviceObject;
    UNICODE_STRING DeviceName;
    PIO_SCSI_CAPABILITIES PortCapabilities;
 
    PCM_RESOURCE_LIST ResourceList;
 
    DPRINT ("ScsiPortInitialize() called!\n");
 
    /* Check params for validity */
    if ((HwInitializationData->HwInitialize == NULL) ||
        (HwInitializationData->HwStartIo == NULL) ||
        (HwInitializationData->HwInterrupt == NULL) ||
        (HwInitializationData->HwFindAdapter == NULL) ||
        (HwInitializationData->HwResetBus == NULL))
    {
        return STATUS_REVISION_MISMATCH;
    }
 
    PSCSI_PORT_DRIVER_EXTENSION driverExtension;
 
    // ScsiPortInitialize may be called multiple times by the same driver
    driverExtension = IoGetDriverObjectExtension(DriverObject, HwInitializationData->HwInitialize);
 
    if (!driverExtension)
    {
        Status = IoAllocateDriverObjectExtension(DriverObject,
                                                 HwInitializationData->HwInitialize,
                                                 sizeof(SCSI_PORT_DRIVER_EXTENSION),
                                                 (PVOID *)&driverExtension);
 
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("Failed to allocate the driver extension! Status 0x%x\n", Status);
            return Status;
        }
    }
 
    // set up the driver extension
    driverExtension->RegistryPath.Buffer =
        ExAllocatePoolWithTag(PagedPool, RegistryPath->MaximumLength, TAG_SCSIPORT);
    driverExtension->RegistryPath.MaximumLength = RegistryPath->MaximumLength;
    RtlCopyUnicodeString(&driverExtension->RegistryPath, RegistryPath);
 
    driverExtension->DriverObject = DriverObject;
 
    /* Set handlers */
    DriverObject->DriverUnload = ScsiPortUnload;
    DriverObject->DriverStartIo = ScsiPortStartIo;
    DriverObject->DriverExtension->AddDevice = ScsiPortAddDevice;
    DriverObject->MajorFunction[IRP_MJ_CREATE] = ScsiPortCreateClose;
    DriverObject->MajorFunction[IRP_MJ_CLOSE] = ScsiPortCreateClose;
    DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = ScsiPortDeviceControl;
    DriverObject->MajorFunction[IRP_MJ_SCSI] = ScsiPortDispatchScsi;
    DriverObject->MajorFunction[IRP_MJ_PNP] = ScsiPortDispatchPnp;
    DriverObject->MajorFunction[IRP_MJ_POWER] = ScsiPortDispatchPower;
 
    /* Obtain configuration information */
    SystemConfig = IoGetConfigurationInformation();
 
    /* Zero the internal configuration info structure */
    RtlZeroMemory(&ConfigInfo, sizeof(CONFIGURATION_INFO));
 
    /* Zero starting slot number */
    SlotNumber.u.AsULONG = 0;
 
    /* Allocate space for access ranges */
    if (HwInitializationData->NumberOfAccessRanges)
    {
        ConfigInfo.AccessRanges =
            ExAllocatePoolWithTag(PagedPool,
            HwInitializationData->NumberOfAccessRanges * sizeof(ACCESS_RANGE), TAG_SCSIPORT);
 
        /* Fail if failed */
        if (ConfigInfo.AccessRanges == NULL)
            return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    /* Open registry keys and fill the driverExtension */
    SpiInitOpenKeys(&ConfigInfo, driverExtension);
 
    // FIXME: PnP miniports are not supported
    ASSERT(driverExtension->IsLegacyDriver);
 
    /* Last adapter number = not known */
    ConfigInfo.LastAdapterNumber = SP_UNINITIALIZED_VALUE;
 
    /* Calculate sizes of DeviceExtension and PortConfig */
    DeviceExtensionSize = sizeof(SCSI_PORT_DEVICE_EXTENSION) +
        HwInitializationData->DeviceExtensionSize;
 
    MaxBus = (HwInitializationData->AdapterInterfaceType == PCIBus) ? 8 : 1;
    DPRINT("MaxBus: %lu\n", MaxBus);
 
    while (TRUE)
    {
        WCHAR NameBuffer[27];
        /* Create a unicode device name */
        swprintf(NameBuffer,
                 L"\\Device\\ScsiPort%lu",
                 SystemConfig->ScsiPortCount);
        if (!RtlCreateUnicodeString(&DeviceName, NameBuffer))
        {
            DPRINT1("Failed to allocate memory for device name!\n");
            Status = STATUS_INSUFFICIENT_RESOURCES;
            PortDeviceObject = NULL;
            break;
        }
 
        DPRINT("Creating device: %wZ\n", &DeviceName);
 
        /* Create the port device */
        Status = IoCreateDevice(DriverObject,
                                DeviceExtensionSize,
                                &DeviceName,
                                FILE_DEVICE_CONTROLLER,
                                FILE_DEVICE_SECURE_OPEN,
                                FALSE,
                                &PortDeviceObject);
 
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("IoCreateDevice call failed! (Status 0x%lX)\n", Status);
            PortDeviceObject = NULL;
            break;
        }
 
        /* Set the buffering strategy here... */
        PortDeviceObject->Flags |= DO_DIRECT_IO;
        PortDeviceObject->AlignmentRequirement = FILE_WORD_ALIGNMENT; /* FIXME: Is this really needed? */
 
        /* Fill Device Extension */
        DeviceExtension = PortDeviceObject->DeviceExtension;
        RtlZeroMemory(DeviceExtension, DeviceExtensionSize);
        DeviceExtension->Common.DeviceObject = PortDeviceObject;
        DeviceExtension->Common.IsFDO = TRUE;
        DeviceExtension->Length = DeviceExtensionSize;
        DeviceExtension->PortNumber = SystemConfig->ScsiPortCount;
        DeviceExtension->DeviceName = DeviceName;
 
        /* Driver's routines... */
        DeviceExtension->HwInitialize = HwInitializationData->HwInitialize;
        DeviceExtension->HwStartIo = HwInitializationData->HwStartIo;
        DeviceExtension->HwInterrupt = HwInitializationData->HwInterrupt;
        DeviceExtension->HwResetBus = HwInitializationData->HwResetBus;
        DeviceExtension->HwDmaStarted = HwInitializationData->HwDmaStarted;
 
        /* Extensions sizes */
        DeviceExtension->MiniPortExtensionSize = HwInitializationData->DeviceExtensionSize;
        DeviceExtension->LunExtensionSize =
            ALIGN_UP(HwInitializationData->SpecificLuExtensionSize, INT64);
        DeviceExtension->SrbExtensionSize =
            ALIGN_UP(HwInitializationData->SrbExtensionSize, INT64);
 
        /* Fill some numbers (bus count, lun count, etc) */
        DeviceExtension->MaxLunCount = SCSI_MAXIMUM_LOGICAL_UNITS;
        DeviceExtension->RequestsNumber = 16;
 
        /* Initialize the spin lock in the controller extension */
        KeInitializeSpinLock(&DeviceExtension->IrqLock);
        KeInitializeSpinLock(&DeviceExtension->SpinLock);
 
        /* Initialize the DPC object */
        IoInitializeDpcRequest(PortDeviceObject,
                               ScsiPortDpcForIsr);
 
        /* Initialize the device timer */
        DeviceExtension->TimerCount = -1;
        IoInitializeTimer(PortDeviceObject,
                          ScsiPortIoTimer,
                          DeviceExtension);
 
        /* Initialize miniport timer */
        KeInitializeTimer(&DeviceExtension->MiniportTimer);
        KeInitializeDpc(&DeviceExtension->MiniportTimerDpc,
                        SpiMiniportTimerDpc,
                        PortDeviceObject);
 
CreatePortConfig:
 
        /* Allocate and initialize port configuration info */
        PortConfigSize = sizeof(PORT_CONFIGURATION_INFORMATION) +
                         HwInitializationData->NumberOfAccessRanges * sizeof(ACCESS_RANGE);
        PortConfigSize = ALIGN_UP(PortConfigSize, INT64);
        DeviceExtension->PortConfig = ExAllocatePoolWithTag(NonPagedPool, PortConfigSize, TAG_SCSIPORT);
 
        /* Fail if failed */
        if (DeviceExtension->PortConfig == NULL)
        {
            Status = STATUS_INSUFFICIENT_RESOURCES;
            break;
        }
 
        Status = SpiCreatePortConfig(DeviceExtension,
                                     HwInitializationData,
                                     &ConfigInfo,
                                     DeviceExtension->PortConfig,
                                     FirstConfigCall);
 
        if (!NT_SUCCESS(Status))
        {
            DPRINT("SpiCreatePortConfig() failed with Status 0x%08X\n", Status);
            break;
        }
 
        PortConfig = DeviceExtension->PortConfig;
 
        /* Copy extension sizes into the PortConfig */
        PortConfig->SpecificLuExtensionSize = DeviceExtension->LunExtensionSize;
        PortConfig->SrbExtensionSize = DeviceExtension->SrbExtensionSize;
 
        /* Initialize Access ranges */
        if (HwInitializationData->NumberOfAccessRanges != 0)
        {
            PortConfig->AccessRanges = ALIGN_UP_POINTER(PortConfig + 1, INT64);
 
            /* Copy the data */
            RtlCopyMemory(PortConfig->AccessRanges,
                          ConfigInfo.AccessRanges,
                          HwInitializationData->NumberOfAccessRanges * sizeof(ACCESS_RANGE));
        }
 
        /* Search for matching PCI device */
        if ((HwInitializationData->AdapterInterfaceType == PCIBus) &&
            (HwInitializationData->VendorIdLength > 0) &&
            (HwInitializationData->VendorId != NULL) &&
            (HwInitializationData->DeviceIdLength > 0) && (HwInitializationData->DeviceId != NULL))
        {
            PortConfig->BusInterruptLevel = 0;
 
            /* Get PCI device data */
            DPRINT(
                "VendorId '%.*s'  DeviceId '%.*s'\n", HwInitializationData->VendorIdLength,
                HwInitializationData->VendorId, HwInitializationData->DeviceIdLength,
                HwInitializationData->DeviceId);
 
            if (!SpiGetPciConfigData(
                    DriverObject, PortDeviceObject, HwInitializationData, PortConfig, RegistryPath,
                    ConfigInfo.BusNumber, &SlotNumber))
            {
                /* Continue to the next bus, nothing here */
                ConfigInfo.BusNumber++;
                DeviceExtension->PortConfig = NULL;
                ExFreePool(PortConfig);
                Again = FALSE;
                goto CreatePortConfig;
            }
 
            if (!PortConfig->BusInterruptLevel)
            {
                /* Bypass this slot, because no interrupt was assigned */
                DeviceExtension->PortConfig = NULL;
                ExFreePool(PortConfig);
                goto CreatePortConfig;
            }
        }
        else
        {
            DPRINT("Non-pci bus\n");
        }
 
        /* Note: HwFindAdapter is called once for each bus */
        Again = FALSE;
        DPRINT("Calling HwFindAdapter() for Bus %lu\n", PortConfig->SystemIoBusNumber);
        Result = (HwInitializationData->HwFindAdapter)(
            &DeviceExtension->MiniPortDeviceExtension, HwContext, 0, /* BusInformation */
            ConfigInfo.Parameter,                                    /* ArgumentString */
            PortConfig, &Again);
 
        DPRINT("HwFindAdapter() Result: %lu  Again: %s\n", Result, (Again) ? "True" : "False");
 
        /* Free MapRegisterBase, it's not needed anymore */
        if (DeviceExtension->MapRegisterBase != NULL)
        {
            ExFreePool(DeviceExtension->MapRegisterBase);
            DeviceExtension->MapRegisterBase = NULL;
        }
 
        /* If result is nothing good... */
        if (Result != SP_RETURN_FOUND)
        {
            DPRINT("HwFindAdapter() Result: %lu\n", Result);
 
            if (Result == SP_RETURN_NOT_FOUND)
            {
                /* We can continue on the next bus */
                ConfigInfo.BusNumber++;
                Again = FALSE;
 
                DeviceExtension->PortConfig = NULL;
                ExFreePool(PortConfig);
                goto CreatePortConfig;
            }
 
            /* Otherwise, break */
            Status = STATUS_INTERNAL_ERROR;
            break;
        }
 
        DPRINT(
            "ScsiPortInitialize(): Found HBA! (%x), adapter Id %d\n",
            PortConfig->BusInterruptVector, PortConfig->InitiatorBusId[0]);
 
        /* If the SRB extension size was updated */
        if (!DeviceExtension->NonCachedExtension &&
            (PortConfig->SrbExtensionSize != DeviceExtension->SrbExtensionSize))
        {
            /* Set it (rounding to LONGLONG again) */
            DeviceExtension->SrbExtensionSize = ALIGN_UP(PortConfig->SrbExtensionSize, INT64);
        }
 
        /* The same with LUN extension size */
        if (PortConfig->SpecificLuExtensionSize != DeviceExtension->LunExtensionSize)
            DeviceExtension->LunExtensionSize = PortConfig->SpecificLuExtensionSize;
 
        /* Construct a resource list */
        ResourceList = SpiConfigToResource(DeviceExtension, PortConfig);
 
        PDEVICE_OBJECT LowerPDO = NULL;
 
        Status = IoReportDetectedDevice(DriverObject,
                                        HwInitializationData->AdapterInterfaceType,
                                        ConfigInfo.BusNumber,
                                        PortConfig->SlotNumber,
                                        ResourceList,
                                        NULL,
                                        TRUE,
                                        &LowerPDO);
 
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("IoReportDetectedDevice failed. Status: 0x%x\n", Status);
            __debugbreak();
            break;
        }
 
        DeviceExtension->Common.LowerDevice = IoAttachDeviceToDeviceStack(PortDeviceObject, LowerPDO);
 
        ASSERT(DeviceExtension->Common.LowerDevice);
 
        PortDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
 
        if (ResourceList)
        {
            ExFreePoolWithTag(ResourceList, TAG_SCSIPORT);
        }
 
        /* Copy all stuff which we ever need from PortConfig to the DeviceExtension */
        if (PortConfig->MaximumNumberOfTargets > SCSI_MAXIMUM_TARGETS_PER_BUS)
            DeviceExtension->MaxTargedIds = SCSI_MAXIMUM_TARGETS_PER_BUS;
        else
            DeviceExtension->MaxTargedIds = PortConfig->MaximumNumberOfTargets;
 
        DeviceExtension->NumberOfBuses = PortConfig->NumberOfBuses;
        DeviceExtension->CachesData = PortConfig->CachesData;
        DeviceExtension->ReceiveEvent = PortConfig->ReceiveEvent;
        DeviceExtension->SupportsTaggedQueuing = PortConfig->TaggedQueuing;
        DeviceExtension->MultipleReqsPerLun = PortConfig->MultipleRequestPerLu;
 
        /* Initialize bus scanning information */
        size_t BusConfigSize = DeviceExtension->NumberOfBuses * sizeof(*DeviceExtension->Buses);
        DeviceExtension->Buses = ExAllocatePoolZero(NonPagedPool, BusConfigSize, TAG_SCSIPORT);
        if (!DeviceExtension->Buses)
        {
            DPRINT1("Out of resources!\n");
            Status = STATUS_INSUFFICIENT_RESOURCES;
            break;
        }
 
        // initialize bus data
        for (UINT8 pathId = 0; pathId < DeviceExtension->NumberOfBuses; pathId++)
        {
            DeviceExtension->Buses[pathId].BusIdentifier =
                DeviceExtension->PortConfig->InitiatorBusId[pathId];
            InitializeListHead(&DeviceExtension->Buses[pathId].LunsListHead);
        }
 
        /* If something was disabled via registry - apply it */
        if (ConfigInfo.DisableMultipleLun)
            DeviceExtension->MultipleReqsPerLun = PortConfig->MultipleRequestPerLu = FALSE;
 
        if (ConfigInfo.DisableTaggedQueueing)
            DeviceExtension->SupportsTaggedQueuing = PortConfig->MultipleRequestPerLu = FALSE;
 
        /* Check if we need to alloc SRB data */
        if (DeviceExtension->SupportsTaggedQueuing || DeviceExtension->MultipleReqsPerLun)
        {
            DeviceExtension->NeedSrbDataAlloc = TRUE;
        }
        else
        {
            DeviceExtension->NeedSrbDataAlloc = FALSE;
        }
 
        /* Get a pointer to the port capabilities */
        PortCapabilities = &DeviceExtension->PortCapabilities;
 
        /* Copy one field there */
        DeviceExtension->MapBuffers = PortConfig->MapBuffers;
        PortCapabilities->AdapterUsesPio = PortConfig->MapBuffers;
 
        if (DeviceExtension->AdapterObject == NULL &&
            (PortConfig->DmaChannel != SP_UNINITIALIZED_VALUE || PortConfig->Master))
        {
            DPRINT1("DMA is not supported yet\n");
            ASSERT(FALSE);
        }
 
        if (DeviceExtension->SrbExtensionBuffer == NULL &&
            (DeviceExtension->SrbExtensionSize != 0 || PortConfig->AutoRequestSense))
        {
            DeviceExtension->SupportsAutoSense = PortConfig->AutoRequestSense;
            DeviceExtension->NeedSrbExtensionAlloc = TRUE;
 
            /* Allocate common buffer */
            Status = SpiAllocateCommonBuffer(DeviceExtension, 0);
 
            /* Check for failure */
            if (!NT_SUCCESS(Status))
                break;
        }
 
        /* Allocate SrbData, if needed */
        if (DeviceExtension->NeedSrbDataAlloc)
        {
            ULONG Count;
            PSCSI_REQUEST_BLOCK_INFO SrbData;
 
            if (DeviceExtension->SrbDataCount != 0)
                Count = DeviceExtension->SrbDataCount;
            else
                Count = DeviceExtension->RequestsNumber * 2;
 
            /* Allocate the data */
            SrbData = ExAllocatePoolWithTag(
                NonPagedPool, Count * sizeof(SCSI_REQUEST_BLOCK_INFO), TAG_SCSIPORT);
            if (SrbData == NULL)
                return STATUS_INSUFFICIENT_RESOURCES;
 
            RtlZeroMemory(SrbData, Count * sizeof(SCSI_REQUEST_BLOCK_INFO));
 
            DeviceExtension->SrbInfo = SrbData;
            DeviceExtension->FreeSrbInfo = SrbData;
            DeviceExtension->SrbDataCount = Count;
 
            /* Link it to the list */
            while (Count > 0)
            {
                SrbData->Requests.Flink = (PLIST_ENTRY)(SrbData + 1);
                SrbData++;
                Count--;
            }
 
            /* Mark the last entry of the list */
            SrbData--;
            SrbData->Requests.Flink = NULL;
        }
 
        /* Initialize port capabilities */
        PortCapabilities = &DeviceExtension->PortCapabilities;
        PortCapabilities->Length = sizeof(IO_SCSI_CAPABILITIES);
        PortCapabilities->MaximumTransferLength = PortConfig->MaximumTransferLength;
 
        if (PortConfig->ReceiveEvent)
            PortCapabilities->SupportedAsynchronousEvents |= SRBEV_SCSI_ASYNC_NOTIFICATION;
 
        PortCapabilities->TaggedQueuing = DeviceExtension->SupportsTaggedQueuing;
        PortCapabilities->AdapterScansDown = PortConfig->AdapterScansDown;
 
        if (PortConfig->AlignmentMask > PortDeviceObject->AlignmentRequirement)
            PortDeviceObject->AlignmentRequirement = PortConfig->AlignmentMask;
 
        PortCapabilities->AlignmentMask = PortDeviceObject->AlignmentRequirement;
 
        if (PortCapabilities->MaximumPhysicalPages == 0)
        {
            PortCapabilities->MaximumPhysicalPages =
                BYTES_TO_PAGES(PortCapabilities->MaximumTransferLength);
 
            /* Apply miniport's limits */
            if (PortConfig->NumberOfPhysicalBreaks < PortCapabilities->MaximumPhysicalPages)
            {
                PortCapabilities->MaximumPhysicalPages = PortConfig->NumberOfPhysicalBreaks;
            }
        }
 
        FdoCallHWInitialize(DeviceExtension);
 
        Status = FdoStartAdapter(DeviceExtension);
 
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("Failed to start the legacy adapter. Status 0x%x\n", Status);
            break;
        }
 
        FdoScanAdapter(DeviceExtension);
 
        FirstConfigCall = FALSE;
 
        /* Increase adapter number and bus number respectively */
        ConfigInfo.AdapterNumber++;
 
        if (!Again)
            ConfigInfo.BusNumber++;
 
        DPRINT("Bus: %lu  MaxBus: %lu\n", ConfigInfo.BusNumber, MaxBus);
 
        DeviceFound = TRUE;
    }
 
    /* Clean up the mess */
    if (!NT_SUCCESS(Status) && PortDeviceObject)
    {
        FdoRemoveAdapter(DeviceExtension);
    }
 
    /* Close registry keys */
    if (ConfigInfo.ServiceKey != NULL)
        ZwClose(ConfigInfo.ServiceKey);
 
    if (ConfigInfo.DeviceKey != NULL)
        ZwClose(ConfigInfo.DeviceKey);
 
    if (ConfigInfo.BusKey != NULL)
        ZwClose(ConfigInfo.BusKey);
 
    if (ConfigInfo.AccessRanges != NULL)
        ExFreePool(ConfigInfo.AccessRanges);
 
    if (ConfigInfo.Parameter != NULL)
        ExFreePool(ConfigInfo.Parameter);
 
    DPRINT("ScsiPortInitialize() done, Status = 0x%08X, DeviceFound = %d!\n",
        Status, DeviceFound);
 
    return (DeviceFound == FALSE) ? Status : STATUS_SUCCESS;
}

ScsiPortIoMapTransfer()

VOID NTAPI ScsiPortIoMapTransfer	(	IN PVOID	HwDeviceExtension,
		IN PSCSI_REQUEST_BLOCK	Srb,
		IN PVOID	LogicalAddress,
		IN ULONG	Length
	)

Definition at line 1400 of file scsiport.c.

{
  DPRINT1("ScsiPortIoMapTransfer()\n");
  UNIMPLEMENTED;
}

ScsiPortIoTimer()

static VOID NTAPI ScsiPortIoTimer ( PDEVICE_OBJECT  DeviceObject, PVOID  Context  )

static

Definition at line 2234 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    PSCSI_PORT_LUN_EXTENSION LunExtension;
    PIRP Irp;
 
    DPRINT("ScsiPortIoTimer()\n");
 
    DeviceExtension = (PSCSI_PORT_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
 
    /* Protect with the spinlock */
    KeAcquireSpinLockAtDpcLevel(&DeviceExtension->SpinLock);
 
    /* Check timeouts */
    if (DeviceExtension->TimerCount > 0)
    {
        /* Decrease the timeout counter */
        DeviceExtension->TimerCount--;
 
        if (DeviceExtension->TimerCount == 0)
        {
            /* Timeout, process it */
            if (KeSynchronizeExecution(DeviceExtension->Interrupt[0],
                                       SpiProcessTimeout,
                                       DeviceExtension->Common.DeviceObject))
            {
                DPRINT("Error happened during processing timeout, but nothing critical\n");
            }
        }
 
        KeReleaseSpinLockFromDpcLevel(&DeviceExtension->SpinLock);
 
        /* We should exit now, since timeout is processed */
        return;
    }
 
    /* Per-Lun scanning of timeouts is needed... */
    for (UINT8 pathId = 0; pathId < DeviceExtension->NumberOfBuses; pathId++)
    {
        PSCSI_BUS_INFO bus = &DeviceExtension->Buses[pathId];
 
        for (PLIST_ENTRY lunEntry = bus->LunsListHead.Flink;
             lunEntry != &bus->LunsListHead;
             lunEntry = lunEntry->Flink)
        {
            LunExtension = CONTAINING_RECORD(lunEntry, SCSI_PORT_LUN_EXTENSION, LunEntry);
 
            if (LunExtension->Flags & LUNEX_BUSY)
            {
                if (!(LunExtension->Flags &
                    (LUNEX_NEED_REQUEST_SENSE | LUNEX_FROZEN_QUEUE)))
                {
                    DPRINT("Retrying busy request\n");
 
                    /* Clear flags, and retry busy request */
                    LunExtension->Flags &= ~(LUNEX_BUSY | LUNEX_FULL_QUEUE);
                    Irp = LunExtension->BusyRequest;
 
                    /* Clearing busy request */
                    LunExtension->BusyRequest = NULL;
 
                    KeReleaseSpinLockFromDpcLevel(&DeviceExtension->SpinLock);
 
                    IoStartPacket(DeviceObject, Irp, (PULONG)NULL, NULL);
 
                    KeAcquireSpinLockAtDpcLevel(&DeviceExtension->SpinLock);
                }
            }
            else if (LunExtension->RequestTimeout == 0)
            {
                RESETBUS_PARAMS ResetParams;
 
                LunExtension->RequestTimeout = -1;
 
                DPRINT("Request timed out, resetting bus\n");
 
                /* Pass params to the bus reset routine */
                ResetParams.PathId = LunExtension->PathId;
                ResetParams.DeviceExtension = DeviceExtension;
 
                if (!KeSynchronizeExecution(DeviceExtension->Interrupt[0],
                                            SpiResetBus,
                                            &ResetParams))
                {
                    DPRINT1("Reset failed\n");
                }
            }
            else if (LunExtension->RequestTimeout > 0)
            {
                /* Decrement the timeout counter */
                LunExtension->RequestTimeout--;
            }
        }
    }
 
    /* Release the spinlock */
    KeReleaseSpinLockFromDpcLevel(&DeviceExtension->SpinLock);
}

Referenced by ScsiPortInitialize().

ScsiPortIsr()

BOOLEAN NTAPI ScsiPortIsr	(	_In_ PKINTERRUPT	Interrupt,
		_In_ PVOID	ServiceContext
	)

Definition at line 2121 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
 
    DPRINT("ScsiPortIsr() called!\n");
 
    DeviceExtension = (PSCSI_PORT_DEVICE_EXTENSION)ServiceContext;
 
    /* If interrupts are disabled - we don't expect any */
    if (DeviceExtension->InterruptData.Flags & SCSI_PORT_DISABLE_INTERRUPTS)
        return FALSE;
 
    /* Call miniport's HwInterrupt routine */
    if (DeviceExtension->HwInterrupt(&DeviceExtension->MiniPortDeviceExtension) == FALSE)
    {
        /* This interrupt doesn't belong to us */
        return FALSE;
    }
 
    /* If flag of notification is set - queue a DPC */
    if (DeviceExtension->InterruptData.Flags & SCSI_PORT_NOTIFICATION_NEEDED)
    {
        IoRequestDpc(DeviceExtension->Common.DeviceObject,
                     DeviceExtension->CurrentIrp,
                     DeviceExtension);
    }
 
    return TRUE;
}

ScsiPortLogError()

VOID NTAPI ScsiPortLogError	(	IN PVOID	HwDeviceExtension,
		IN PSCSI_REQUEST_BLOCK Srb	OPTIONAL,
		IN UCHAR	PathId,
		IN UCHAR	TargetId,
		IN UCHAR	Lun,
		IN ULONG	ErrorCode,
		IN ULONG	UniqueId
	)

Definition at line 1413 of file scsiport.c.

{
  //PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
 
  DPRINT1("ScsiPortLogError() called\n");
  DPRINT1("PathId: 0x%02x  TargetId: 0x%02x  Lun: 0x%02x  ErrorCode: 0x%08lx  UniqueId: 0x%08lx\n",
          PathId, TargetId, Lun, ErrorCode, UniqueId);
 
  //DeviceExtension = CONTAINING_RECORD(HwDeviceExtension, SCSI_PORT_DEVICE_EXTENSION, MiniPortDeviceExtension);
 
 
  DPRINT("ScsiPortLogError() done\n");
}

ScsiPortMoveMemory()

VOID NTAPI ScsiPortMoveMemory	(	OUT PVOID	Destination,
		IN PVOID	Source,
		IN ULONG	Length
	)

Definition at line 1437 of file scsiport.c.

{
  RtlMoveMemory(Destination,
        Source,
        Length);
}

ScsiPortNotification()

VOID ScsiPortNotification	(	IN SCSI_NOTIFICATION_TYPE	NotificationType,
		IN PVOID	HwDeviceExtension,
			...
	)

Definition at line 1451 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    va_list ap;
 
    DPRINT("ScsiPortNotification() called\n");
 
    DeviceExtension =
        CONTAINING_RECORD(HwDeviceExtension, SCSI_PORT_DEVICE_EXTENSION, MiniPortDeviceExtension);
 
    DPRINT("DeviceExtension %p\n", DeviceExtension);
 
    va_start(ap, HwDeviceExtension);
 
    switch (NotificationType)
    {
        case RequestComplete:
        {
            PSCSI_REQUEST_BLOCK Srb;
            PSCSI_REQUEST_BLOCK_INFO SrbData;
 
            Srb = (PSCSI_REQUEST_BLOCK)va_arg(ap, PSCSI_REQUEST_BLOCK);
 
            DPRINT("Notify: RequestComplete (Srb %p)\n", Srb);
 
            /* Make sure Srb is alright */
            ASSERT(Srb->SrbStatus != SRB_STATUS_PENDING);
            ASSERT(
                Srb->Function != SRB_FUNCTION_EXECUTE_SCSI ||
                Srb->SrbStatus != SRB_STATUS_SUCCESS || Srb->ScsiStatus == SCSISTAT_GOOD);
 
            if (!(Srb->SrbFlags & SRB_FLAGS_IS_ACTIVE))
            {
                /* It's been already completed */
                va_end(ap);
                return;
            }
 
            /* It's not active anymore */
            Srb->SrbFlags &= ~SRB_FLAGS_IS_ACTIVE;
 
            if (Srb->Function == SRB_FUNCTION_ABORT_COMMAND)
            {
                /* TODO: Treat it specially */
                ASSERT(FALSE);
            }
            else
            {
                PIO_STACK_LOCATION IoStack = IoGetCurrentIrpStackLocation(Srb->OriginalRequest);
                PSCSI_PORT_LUN_EXTENSION LunExtension = IoStack->DeviceObject->DeviceExtension;
                ASSERT(LunExtension && !LunExtension->Common.IsFDO);
 
                /* Get the SRB data */
                SrbData = SpiGetSrbData(DeviceExtension, LunExtension, Srb->QueueTag);
 
                /* Make sure there are no CompletedRequests and there is a Srb */
                ASSERT(SrbData->CompletedRequests == NULL && SrbData->Srb != NULL);
 
                /* If it's a read/write request, make sure it has data inside it */
                if ((Srb->SrbStatus == SRB_STATUS_SUCCESS) &&
                    ((Srb->Cdb[0] == SCSIOP_READ) || (Srb->Cdb[0] == SCSIOP_WRITE)))
                {
                    ASSERT(Srb->DataTransferLength);
                }
 
                SrbData->CompletedRequests = DeviceExtension->InterruptData.CompletedRequests;
                DeviceExtension->InterruptData.CompletedRequests = SrbData;
            }
        }
        break;
 
        case NextRequest:
            DPRINT("Notify: NextRequest\n");
            DeviceExtension->InterruptData.Flags |= SCSI_PORT_NEXT_REQUEST_READY;
            break;
 
        case NextLuRequest:
        {
            UCHAR PathId;
            UCHAR TargetId;
            UCHAR Lun;
            PSCSI_PORT_LUN_EXTENSION LunExtension;
 
            PathId = (UCHAR)va_arg(ap, int);
            TargetId = (UCHAR)va_arg(ap, int);
            Lun = (UCHAR)va_arg(ap, int);
 
            DPRINT(
                "Notify: NextLuRequest(PathId %u  TargetId %u  Lun %u)\n", PathId, TargetId, Lun);
 
            /* Mark it in the flags field */
            DeviceExtension->InterruptData.Flags |= SCSI_PORT_NEXT_REQUEST_READY;
 
            /* Get the LUN extension */
            LunExtension = GetLunByPath(DeviceExtension, PathId, TargetId, Lun);
 
            /* If returned LunExtension is NULL, break out */
            if (!LunExtension)
                break;
 
            /* This request should not be processed if */
            if ((LunExtension->ReadyLun) || (LunExtension->SrbInfo.Srb))
            {
                /* Nothing to do here */
                break;
            }
 
            /* Add this LUN to the list */
            LunExtension->ReadyLun = DeviceExtension->InterruptData.ReadyLun;
            DeviceExtension->InterruptData.ReadyLun = LunExtension;
        }
        break;
 
        case ResetDetected:
            DPRINT("Notify: ResetDetected\n");
            /* Add RESET flags */
            DeviceExtension->InterruptData.Flags |= SCSI_PORT_RESET | SCSI_PORT_RESET_REPORTED;
            break;
 
        case CallDisableInterrupts:
            DPRINT1("UNIMPLEMENTED SCSI Notification called: CallDisableInterrupts!\n");
            break;
 
        case CallEnableInterrupts:
            DPRINT1("UNIMPLEMENTED SCSI Notification called: CallEnableInterrupts!\n");
            break;
 
        case RequestTimerCall:
            DPRINT("Notify: RequestTimerCall\n");
            DeviceExtension->InterruptData.Flags |= SCSI_PORT_TIMER_NEEDED;
            DeviceExtension->InterruptData.HwScsiTimer = (PHW_TIMER)va_arg(ap, PHW_TIMER);
            DeviceExtension->InterruptData.MiniportTimerValue = (ULONG)va_arg(ap, ULONG);
            break;
 
        case BusChangeDetected:
            DPRINT1("UNIMPLEMENTED SCSI Notification called: BusChangeDetected!\n");
            break;
 
        default:
            DPRINT1("Unsupported notification from WMI: %lu\n", NotificationType);
            break;
    }
 
    va_end(ap);
 
    /* Request a DPC after we're done with the interrupt */
    DeviceExtension->InterruptData.Flags |= SCSI_PORT_NOTIFICATION_NEEDED;
}

ScsiPortSetBusDataByOffset()

ULONG NTAPI ScsiPortSetBusDataByOffset	(	IN PVOID	DeviceExtension,
		IN ULONG	BusDataType,
		IN ULONG	SystemIoBusNumber,
		IN ULONG	SlotNumber,
		IN PVOID	Buffer,
		IN ULONG	Offset,
		IN ULONG	Length
	)

Definition at line 400 of file scsiport.c.

{
    DPRINT("ScsiPortSetBusDataByOffset()\n");
    return HalSetBusDataByOffset(BusDataType,
                                 SystemIoBusNumber,
                                 SlotNumber,
                                 Buffer,
                                 Offset,
                                 Length);
}

ScsiPortUnload()

VOID NTAPI ScsiPortUnload

(

_In_ PDRIVER_OBJECT

DriverObject

)

Definition at line 121 of file scsiport.c.

{
    // no-op
}

Referenced by ScsiPortInitialize().

ScsiPortValidateRange()

BOOLEAN NTAPI ScsiPortValidateRange	(	IN PVOID	HwDeviceExtension,
		IN INTERFACE_TYPE	BusType,
		IN ULONG	SystemIoBusNumber,
		IN SCSI_PHYSICAL_ADDRESS	IoAddress,
		IN ULONG	NumberOfBytes,
		IN BOOLEAN	InIoSpace
	)

Definition at line 1604 of file scsiport.c.

{
  DPRINT("ScsiPortValidateRange()\n");
  return(TRUE);
}

SpiAdapterControl()

IO_ALLOCATION_ACTION NTAPI SpiAdapterControl	(	PDEVICE_OBJECT	DeviceObject,
		PIRP	Irp,
		PVOID	MapRegisterBase,
		PVOID	Context
	)

Definition at line 2037 of file scsiport.c.

{
    PSCSI_REQUEST_BLOCK Srb;
    PSCSI_SG_ADDRESS ScatterGatherList;
    KIRQL CurrentIrql;
    PIO_STACK_LOCATION IrpStack;
    ULONG TotalLength = 0;
    PSCSI_REQUEST_BLOCK_INFO SrbInfo;
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
    PUCHAR DataVA;
    BOOLEAN WriteToDevice;
 
    /* Get pointers to SrbInfo and DeviceExtension */
    SrbInfo = (PSCSI_REQUEST_BLOCK_INFO)Context;
    DeviceExtension = DeviceObject->DeviceExtension;
 
    /* Get pointer to SRB */
    IrpStack = IoGetCurrentIrpStackLocation(Irp);
    Srb = (PSCSI_REQUEST_BLOCK)IrpStack->Parameters.Others.Argument1;
 
    /* Depending on the map registers number, we allocate
       either from NonPagedPool, or from our static list */
    if (SrbInfo->NumberOfMapRegisters > MAX_SG_LIST)
    {
        SrbInfo->ScatterGather = ExAllocatePoolWithTag(
            NonPagedPool, SrbInfo->NumberOfMapRegisters * sizeof(SCSI_SG_ADDRESS), TAG_SCSIPORT);
 
        if (SrbInfo->ScatterGather == NULL)
            ASSERT(FALSE);
 
        Srb->SrbFlags |= SRB_FLAGS_SGLIST_FROM_POOL;
    }
    else
    {
        SrbInfo->ScatterGather = SrbInfo->ScatterGatherList;
    }
 
    /* Use chosen SG list source */
    ScatterGatherList = SrbInfo->ScatterGather;
 
    /* Save map registers base */
    SrbInfo->BaseOfMapRegister = MapRegisterBase;
 
    /* Determine WriteToDevice flag */
    WriteToDevice = Srb->SrbFlags & SRB_FLAGS_DATA_OUT ? TRUE : FALSE;
 
    /* Get virtual address of the data buffer */
    DataVA = (PUCHAR)MmGetMdlVirtualAddress(Irp->MdlAddress) +
                ((PCHAR)Srb->DataBuffer - SrbInfo->DataOffset);
 
    /* Build the actual SG list */
    while (TotalLength < Srb->DataTransferLength)
    {
        if (!ScatterGatherList)
            break;
 
        ScatterGatherList->Length = Srb->DataTransferLength - TotalLength;
        ScatterGatherList->PhysicalAddress = IoMapTransfer(DeviceExtension->AdapterObject,
                                                           Irp->MdlAddress,
                                                           MapRegisterBase,
                                                           DataVA + TotalLength,
                                                           &ScatterGatherList->Length,
                                                           WriteToDevice);
 
        TotalLength += ScatterGatherList->Length;
        ScatterGatherList++;
    }
 
    /* Schedule an active request */
    InterlockedIncrement(&DeviceExtension->ActiveRequestCounter );
    KeAcquireSpinLock(&DeviceExtension->SpinLock, &CurrentIrql);
    KeSynchronizeExecution(DeviceExtension->Interrupt[0],
                           ScsiPortStartPacket,
                           DeviceObject);
    KeReleaseSpinLock(&DeviceExtension->SpinLock, CurrentIrql);
 
    return DeallocateObjectKeepRegisters;
}

Referenced by ScsiPortStartIo().

SpiAllocateCommonBuffer()

static NTSTATUS SpiAllocateCommonBuffer ( PSCSI_PORT_DEVICE_EXTENSION  DeviceExtension, ULONG  NonCachedSize  )

static

Definition at line 690 of file scsiport.c.

{
    PVOID *SrbExtension, CommonBuffer;
    ULONG CommonBufferLength, BufSize;
 
    /* If size is 0, set it to 16 */
    if (!DeviceExtension->SrbExtensionSize)
        DeviceExtension->SrbExtensionSize = 16;
 
    /* Calculate size */
    BufSize = DeviceExtension->SrbExtensionSize;
 
    /* Add autosense data size if needed */
    if (DeviceExtension->SupportsAutoSense)
        BufSize += sizeof(SENSE_DATA);
 
 
    /* Round it */
    BufSize = (BufSize + sizeof(LONGLONG) - 1) & ~(sizeof(LONGLONG) - 1);
 
    /* Sum up into the total common buffer length, and round it to page size */
    CommonBufferLength =
        ROUND_TO_PAGES(NonCachedSize + BufSize * DeviceExtension->RequestsNumber);
 
    /* Allocate it */
    if (!DeviceExtension->AdapterObject)
    {
        /* From nonpaged pool if there is no DMA */
        CommonBuffer = ExAllocatePoolWithTag(NonPagedPool, CommonBufferLength, TAG_SCSIPORT);
    }
    else
    {
        /* Perform a full request since we have a DMA adapter*/
        CommonBuffer = HalAllocateCommonBuffer(DeviceExtension->AdapterObject,
            CommonBufferLength,
            &DeviceExtension->PhysicalAddress,
            FALSE );
    }
 
    /* Fail in case of error */
    if (!CommonBuffer)
        return STATUS_INSUFFICIENT_RESOURCES;
 
    /* Zero it */
    RtlZeroMemory(CommonBuffer, CommonBufferLength);
 
    /* Store its size in Device Extension */
    DeviceExtension->CommonBufferLength = CommonBufferLength;
 
    /* SrbExtension buffer is located at the beginning of the buffer */
    DeviceExtension->SrbExtensionBuffer = CommonBuffer;
 
    /* Non-cached extension buffer is located at the end of
       the common buffer */
    if (NonCachedSize)
    {
        CommonBufferLength -=  NonCachedSize;
        DeviceExtension->NonCachedExtension = (PUCHAR)CommonBuffer + CommonBufferLength;
    }
    else
    {
        DeviceExtension->NonCachedExtension = NULL;
    }
 
    if (DeviceExtension->NeedSrbExtensionAlloc)
    {
        /* Look up how many SRB data structures we need */
        DeviceExtension->SrbDataCount = CommonBufferLength / BufSize;
 
        /* Initialize the free SRB extensions list */
        SrbExtension = (PVOID *)CommonBuffer;
        DeviceExtension->FreeSrbExtensions = SrbExtension;
 
        /* Fill the remaining pointers (if we have more than 1 SRB) */
        while (CommonBufferLength >= 2 * BufSize)
        {
            *SrbExtension = (PVOID*)((PCHAR)SrbExtension + BufSize);
            SrbExtension = *SrbExtension;
 
            CommonBufferLength -= BufSize;
        }
    }
 
    return STATUS_SUCCESS;
}

SpiCompleteRequest()

VOID NTAPI SpiCompleteRequest	(	IN PVOID	HwDeviceExtension,
		IN PSCSI_REQUEST_BLOCK_INFO	SrbInfo,
		IN UCHAR	SrbStatus
	)

Definition at line 203 of file scsiport.c.

{
    PSCSI_REQUEST_BLOCK Srb;
 
    /* Get current SRB */
    Srb = SrbInfo->Srb;
 
    /* Return if there is no SRB or it is not active */
    if (!Srb || !(Srb->SrbFlags & SRB_FLAGS_IS_ACTIVE)) return;
 
    /* Set status */
    Srb->SrbStatus = SrbStatus;
 
    /* Set data transfered to 0 */
    Srb->DataTransferLength = 0;
 
    /* Notify */
    ScsiPortNotification(RequestComplete,
                         HwDeviceExtension,
                         Srb);
}

Referenced by ScsiPortCompleteRequest().

SpiConfigToResource()

static PCM_RESOURCE_LIST SpiConfigToResource ( PSCSI_PORT_DEVICE_EXTENSION  DeviceExtension, PPORT_CONFIGURATION_INFORMATION  PortConfig  )

static

Definition at line 1739 of file scsiport.c.

{
    PCONFIGURATION_INFORMATION ConfigInfo;
    PCM_RESOURCE_LIST ResourceList;
    PCM_PARTIAL_RESOURCE_DESCRIPTOR ResourceDescriptor;
    PACCESS_RANGE AccessRange;
    ULONG ListLength = 0, i, FullSize;
    ULONG Interrupt, Dma;
 
    /* Get current Atdisk usage from the system */
    ConfigInfo = IoGetConfigurationInformation();
 
    if (PortConfig->AtdiskPrimaryClaimed)
        ConfigInfo->AtDiskPrimaryAddressClaimed = TRUE;
 
    if (PortConfig->AtdiskSecondaryClaimed)
        ConfigInfo->AtDiskSecondaryAddressClaimed = TRUE;
 
    /* Do we use DMA? */
    if (PortConfig->DmaChannel != SP_UNINITIALIZED_VALUE ||
        PortConfig->DmaPort != SP_UNINITIALIZED_VALUE)
    {
        Dma = 1;
 
        if (PortConfig->DmaChannel2 != SP_UNINITIALIZED_VALUE ||
            PortConfig->DmaPort2 != SP_UNINITIALIZED_VALUE)
            Dma++;
    }
    else
    {
        Dma = 0;
    }
    ListLength += Dma;
 
    /* How many interrupts to we have? */
    Interrupt = DeviceExtension->InterruptCount;
    ListLength += Interrupt;
 
    /* How many access ranges do we use? */
    AccessRange = &((*(PortConfig->AccessRanges))[0]);
    for (i = 0; i < PortConfig->NumberOfAccessRanges; i++)
    {
        if (AccessRange->RangeLength != 0)
            ListLength++;
 
        AccessRange++;
    }
 
    /* Allocate the resource list, since we know its size now */
    FullSize = sizeof(CM_RESOURCE_LIST) + (ListLength - 1) *
        sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
 
    ResourceList = (PCM_RESOURCE_LIST)ExAllocatePoolWithTag(PagedPool, FullSize, TAG_SCSIPORT);
 
    if (!ResourceList)
        return NULL;
 
    /* Zero it */
    RtlZeroMemory(ResourceList, FullSize);
 
    /* Initialize it */
    ResourceList->Count = 1;
    ResourceList->List[0].InterfaceType = PortConfig->AdapterInterfaceType;
    ResourceList->List[0].BusNumber = PortConfig->SystemIoBusNumber;
    ResourceList->List[0].PartialResourceList.Count = ListLength;
    ResourceDescriptor = ResourceList->List[0].PartialResourceList.PartialDescriptors;
 
    /* Copy access ranges array over */
    for (i = 0; i < PortConfig->NumberOfAccessRanges; i++)
    {
        AccessRange = &((*(PortConfig->AccessRanges))[i]);
 
        /* If the range is empty - skip it */
        if (AccessRange->RangeLength == 0)
            continue;
 
        if (AccessRange->RangeInMemory)
        {
            ResourceDescriptor->Type = CmResourceTypeMemory;
            ResourceDescriptor->Flags = CM_RESOURCE_MEMORY_READ_WRITE;
        }
        else
        {
            ResourceDescriptor->Type = CmResourceTypePort;
            ResourceDescriptor->Flags = CM_RESOURCE_PORT_IO;
        }
 
        ResourceDescriptor->ShareDisposition = CmResourceShareDeviceExclusive;
 
        ResourceDescriptor->u.Memory.Start = AccessRange->RangeStart;
        ResourceDescriptor->u.Memory.Length = AccessRange->RangeLength;
 
        ResourceDescriptor++;
    }
 
    /* If we use interrupt(s), copy them */
    while (Interrupt)
    {
        ResourceDescriptor->Type = CmResourceTypeInterrupt;
 
        if (PortConfig->AdapterInterfaceType == MicroChannel ||
            ((Interrupt == 2) ? PortConfig->InterruptMode2 : PortConfig->InterruptMode) == LevelSensitive)
        {
            ResourceDescriptor->ShareDisposition = CmResourceShareShared;
            ResourceDescriptor->Flags = CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE;
        }
        else
        {
            ResourceDescriptor->ShareDisposition = CmResourceShareDeviceExclusive;
            ResourceDescriptor->Flags = CM_RESOURCE_INTERRUPT_LATCHED;
        }
 
        ResourceDescriptor->u.Interrupt.Level = (Interrupt == 2) ? PortConfig->BusInterruptLevel2 : PortConfig->BusInterruptLevel;
        ResourceDescriptor->u.Interrupt.Vector = (Interrupt == 2) ? PortConfig->BusInterruptVector2 : PortConfig->BusInterruptVector;
        ResourceDescriptor->u.Interrupt.Affinity = 0;
 
        ResourceDescriptor++;
        Interrupt--;
    }
 
    /* Copy DMA data */
    while (Dma)
    {
        ResourceDescriptor->Type = CmResourceTypeDma;
        ResourceDescriptor->ShareDisposition = CmResourceShareDeviceExclusive;
        ResourceDescriptor->u.Dma.Channel = (Dma == 2) ? PortConfig->DmaChannel2 : PortConfig->DmaChannel;
        ResourceDescriptor->u.Dma.Port = (Dma == 2) ? PortConfig->DmaPort2 : PortConfig->DmaPort;
        ResourceDescriptor->Flags = 0;
 
        if (((Dma == 2) ? PortConfig->DmaWidth2 : PortConfig->DmaWidth) == Width8Bits)
            ResourceDescriptor->Flags |= CM_RESOURCE_DMA_8;
        else if (((Dma == 2) ? PortConfig->DmaWidth2 : PortConfig->DmaWidth) == Width16Bits)
            ResourceDescriptor->Flags |= CM_RESOURCE_DMA_16;
        else
            ResourceDescriptor->Flags |= CM_RESOURCE_DMA_32;
 
        if (((Dma == 2) ? PortConfig->DmaChannel2 : PortConfig->DmaChannel) == SP_UNINITIALIZED_VALUE)
            ResourceDescriptor->u.Dma.Channel = 0;
 
        if (((Dma == 2) ? PortConfig->DmaPort2 : PortConfig->DmaPort) == SP_UNINITIALIZED_VALUE)
            ResourceDescriptor->u.Dma.Port = 0;
 
        ResourceDescriptor++;
        Dma--;
    }
 
    return ResourceList;
}

Referenced by ScsiPortInitialize().

SpiCreatePortConfig()

static NTSTATUS SpiCreatePortConfig ( PSCSI_PORT_DEVICE_EXTENSION  DeviceExtension, PHW_INITIALIZATION_DATA  HwInitData, PCONFIGURATION_INFO  InternalConfigInfo, PPORT_CONFIGURATION_INFORMATION  ConfigInfo, BOOLEAN  FirstCall  )

static

Definition at line 2369 of file scsiport.c.

{
    UNICODE_STRING UnicodeString;
    OBJECT_ATTRIBUTES ObjectAttributes;
    PCONFIGURATION_INFORMATION DdkConfigInformation;
    HANDLE RootKey, Key;
    BOOLEAN Found;
    WCHAR DeviceBuffer[16];
    WCHAR StrBuffer[512];
    ULONG Bus;
    NTSTATUS Status;
 
    /* Zero out the struct if told so */
    if (ZeroStruct)
    {
        /* First zero the portconfig */
        RtlZeroMemory(ConfigInfo, sizeof(PORT_CONFIGURATION_INFORMATION));
 
        /* Then access ranges */
        RtlZeroMemory(InternalConfigInfo->AccessRanges,
                      HwInitData->NumberOfAccessRanges * sizeof(ACCESS_RANGE));
 
        /* Initialize the struct */
        ConfigInfo->Length = sizeof(PORT_CONFIGURATION_INFORMATION);
        ConfigInfo->AdapterInterfaceType = HwInitData->AdapterInterfaceType;
        ConfigInfo->InterruptMode = Latched;
        ConfigInfo->DmaChannel = SP_UNINITIALIZED_VALUE;
        ConfigInfo->DmaPort = SP_UNINITIALIZED_VALUE;
        ConfigInfo->DmaChannel2 = SP_UNINITIALIZED_VALUE;
        ConfigInfo->DmaPort2 = SP_UNINITIALIZED_VALUE;
        ConfigInfo->MaximumTransferLength = SP_UNINITIALIZED_VALUE;
        ConfigInfo->NumberOfAccessRanges = HwInitData->NumberOfAccessRanges;
        ConfigInfo->MaximumNumberOfTargets = 8;
 
        /* Store parameters */
        ConfigInfo->NeedPhysicalAddresses = HwInitData->NeedPhysicalAddresses;
        ConfigInfo->MapBuffers = HwInitData->MapBuffers;
        ConfigInfo->AutoRequestSense = HwInitData->AutoRequestSense;
        ConfigInfo->ReceiveEvent = HwInitData->ReceiveEvent;
        ConfigInfo->TaggedQueuing = HwInitData->TaggedQueuing;
        ConfigInfo->MultipleRequestPerLu = HwInitData->MultipleRequestPerLu;
 
        /* Get the disk usage */
        DdkConfigInformation = IoGetConfigurationInformation();
        ConfigInfo->AtdiskPrimaryClaimed = DdkConfigInformation->AtDiskPrimaryAddressClaimed;
        ConfigInfo->AtdiskSecondaryClaimed = DdkConfigInformation->AtDiskSecondaryAddressClaimed;
 
        /* Initiator bus id is not set */
        for (Bus = 0; Bus < 8; Bus++)
            ConfigInfo->InitiatorBusId[Bus] = (CCHAR)SP_UNINITIALIZED_VALUE;
    }
 
    ConfigInfo->NumberOfPhysicalBreaks = 17;
 
    /* Clear this information */
    InternalConfigInfo->DisableTaggedQueueing = FALSE;
    InternalConfigInfo->DisableMultipleLun = FALSE;
 
    /* Store Bus Number */
    ConfigInfo->SystemIoBusNumber = InternalConfigInfo->BusNumber;
 
TryNextAd:
 
    if (ConfigInfo->AdapterInterfaceType == Internal)
    {
        /* Open registry key for HW database */
        InitializeObjectAttributes(&ObjectAttributes,
                                   DeviceExtension->Common.DeviceObject->DriverObject->HardwareDatabase,
                                   OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
                                   NULL,
                                   NULL);
 
        Status = ZwOpenKey(&RootKey,
                           KEY_READ,
                           &ObjectAttributes);
 
        if (NT_SUCCESS(Status))
        {
            /* Create name for it */
            swprintf(StrBuffer, L"ScsiAdapter\\%lu",
                InternalConfigInfo->AdapterNumber);
 
            RtlInitUnicodeString(&UnicodeString, StrBuffer);
 
            /* Open device key */
            InitializeObjectAttributes(&ObjectAttributes,
                                       &UnicodeString,
                                       OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
                                       RootKey,
                                       NULL);
 
            Status = ZwOpenKey(&Key,
                               KEY_READ,
                               &ObjectAttributes);
 
            ZwClose(RootKey);
 
            if (NT_SUCCESS(Status))
            {
                if (InternalConfigInfo->LastAdapterNumber != InternalConfigInfo->AdapterNumber)
                {
                    DPRINT("Hardware info found at %S\n", StrBuffer);
 
                    /* Parse it */
                    SpiParseDeviceInfo(DeviceExtension,
                                       Key,
                                       ConfigInfo,
                                       InternalConfigInfo,
                                       (PUCHAR)StrBuffer);
 
                     InternalConfigInfo->BusNumber = 0;
                }
                else
                {
                    /* Try the next adapter */
                    InternalConfigInfo->AdapterNumber++;
                    goto TryNextAd;
                }
            }
            else
            {
                /* Info was not found, exit */
                DPRINT("ZwOpenKey() failed with Status=0x%08X\n", Status);
                return STATUS_DEVICE_DOES_NOT_EXIST;
            }
        }
        else
        {
            DPRINT1("ZwOpenKey() failed with Status=0x%08X\n", Status);
        }
    }
 
    /* Look at device params */
    Key = NULL;
    if (InternalConfigInfo->Parameter)
    {
        ExFreePool(InternalConfigInfo->Parameter);
        InternalConfigInfo->Parameter = NULL;
    }
 
    if (InternalConfigInfo->ServiceKey != NULL)
    {
        swprintf(DeviceBuffer, L"Device%lu", InternalConfigInfo->AdapterNumber);
        RtlInitUnicodeString(&UnicodeString, DeviceBuffer);
 
        /* Open the service key */
        InitializeObjectAttributes(&ObjectAttributes,
                                   &UnicodeString,
                                   OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
                                   InternalConfigInfo->ServiceKey,
                                   NULL);
 
        Status = ZwOpenKey(&Key,
                           KEY_READ,
                           &ObjectAttributes);
    }
 
    /* Parse device key */
    if (InternalConfigInfo->DeviceKey != NULL)
    {
        SpiParseDeviceInfo(DeviceExtension,
                           InternalConfigInfo->DeviceKey,
                           ConfigInfo,
                           InternalConfigInfo,
                           (PUCHAR)StrBuffer);
    }
 
    /* Then parse hw info */
    if (Key != NULL)
    {
        if (InternalConfigInfo->LastAdapterNumber != InternalConfigInfo->AdapterNumber)
        {
            SpiParseDeviceInfo(DeviceExtension,
                               Key,
                               ConfigInfo,
                               InternalConfigInfo,
                               (PUCHAR)StrBuffer);
 
            /* Close the key */
            ZwClose(Key);
        }
        else
        {
            /* Adapter not found, go try the next one */
            InternalConfigInfo->AdapterNumber++;
 
            /* Close the key */
            ZwClose(Key);
 
            goto TryNextAd;
        }
    }
 
    /* Update the last adapter number */
    InternalConfigInfo->LastAdapterNumber = InternalConfigInfo->AdapterNumber;
 
    /* Do we have this kind of bus at all? */
    Found = FALSE;
    Status = IoQueryDeviceDescription(&HwInitData->AdapterInterfaceType,
                                      &InternalConfigInfo->BusNumber,
                                      NULL,
                                      NULL,
                                      NULL,
                                      NULL,
                                      SpQueryDeviceCallout,
                                      &Found);
 
    /* This bus was not found */
    if (!Found)
    {
        INTERFACE_TYPE InterfaceType = Eisa;
 
        /* Check for EISA */
        if (HwInitData->AdapterInterfaceType == Isa)
        {
            Status = IoQueryDeviceDescription(&InterfaceType,
                                              &InternalConfigInfo->BusNumber,
                                              NULL,
                                              NULL,
                                              NULL,
                                              NULL,
                                              SpQueryDeviceCallout,
                                              &Found);
 
            /* Return respectively */
            if (Found)
                return STATUS_SUCCESS;
            else
                return STATUS_DEVICE_DOES_NOT_EXIST;
        }
        else
        {
            return STATUS_DEVICE_DOES_NOT_EXIST;
        }
    }
    else
    {
        return STATUS_SUCCESS;
    }
}

SpiGetPciConfigData()

static BOOLEAN SpiGetPciConfigData ( IN PDRIVER_OBJECT  DriverObject, IN PDEVICE_OBJECT  DeviceObject, IN struct _HW_INITIALIZATION_DATA *  HwInitializationData, IN OUT PPORT_CONFIGURATION_INFORMATION  PortConfig, IN PUNICODE_STRING  RegistryPath, IN ULONG  BusNumber, IN OUT PPCI_SLOT_NUMBER  NextSlotNumber  )

static

Definition at line 1891 of file scsiport.c.

{
    PCI_COMMON_CONFIG PciConfig;
    PCI_SLOT_NUMBER SlotNumber;
    ULONG DataSize;
    ULONG DeviceNumber;
    ULONG FunctionNumber;
    CHAR VendorIdString[8];
    CHAR DeviceIdString[8];
    UNICODE_STRING UnicodeStr;
    PCM_RESOURCE_LIST ResourceList = NULL;
    NTSTATUS Status;
 
    DPRINT ("SpiGetPciConfiguration() called\n");
 
    SlotNumber.u.AsULONG = 0;
 
    /* Loop through all devices */
    for (DeviceNumber = NextSlotNumber->u.bits.DeviceNumber; DeviceNumber < PCI_MAX_DEVICES; DeviceNumber++)
    {
        SlotNumber.u.bits.DeviceNumber = DeviceNumber;
 
        /* Loop through all functions */
        for (FunctionNumber = NextSlotNumber->u.bits.FunctionNumber; FunctionNumber < PCI_MAX_FUNCTION; FunctionNumber++)
        {
            SlotNumber.u.bits.FunctionNumber = FunctionNumber;
 
            /* Get PCI config bytes */
            DataSize = HalGetBusData(PCIConfiguration,
                                     BusNumber,
                                     SlotNumber.u.AsULONG,
                                     &PciConfig,
                                     sizeof(ULONG));
 
            /* If result of HalGetBusData is 0, then the bus is wrong */
            if (DataSize == 0)
                return FALSE;
 
            /* Check if result is PCI_INVALID_VENDORID or too small */
            if ((DataSize < sizeof(ULONG)) ||
                (PciConfig.VendorID == PCI_INVALID_VENDORID))
            {
                /* Continue to try the next function */
                continue;
            }
 
            sprintf (VendorIdString, "%04hx", PciConfig.VendorID);
            sprintf (DeviceIdString, "%04hx", PciConfig.DeviceID);
 
            if (_strnicmp(VendorIdString, HwInitializationData->VendorId, HwInitializationData->VendorIdLength) ||
                _strnicmp(DeviceIdString, HwInitializationData->DeviceId, HwInitializationData->DeviceIdLength))
            {
                /* It is not our device */
                continue;
            }
 
            DPRINT("Found device 0x%04hx 0x%04hx at %1lu %2lu %1lu\n",
                   PciConfig.VendorID,
                   PciConfig.DeviceID,
                   BusNumber,
                   SlotNumber.u.bits.DeviceNumber,
                   SlotNumber.u.bits.FunctionNumber);
 
 
            RtlInitUnicodeString(&UnicodeStr, L"ScsiAdapter");
            Status = HalAssignSlotResources(RegistryPath,
                                            &UnicodeStr,
                                            DriverObject,
                                            DeviceObject,
                                            PCIBus,
                                            BusNumber,
                                            SlotNumber.u.AsULONG,
                                            &ResourceList);
 
            if (!NT_SUCCESS(Status))
                break;
 
            /* Create configuration information */
            SpiResourceToConfig(HwInitializationData,
                                ResourceList->List,
                                PortConfig);
 
            /* Free the resource list */
            ExFreePool(ResourceList);
 
            /* Set dev & fn numbers */
            NextSlotNumber->u.bits.DeviceNumber = DeviceNumber;
            NextSlotNumber->u.bits.FunctionNumber = FunctionNumber + 1;
 
            /* Save the slot number */
            PortConfig->SlotNumber = SlotNumber.u.AsULONG;
 
            return TRUE;
        }
       NextSlotNumber->u.bits.FunctionNumber = 0;
    }
 
    NextSlotNumber->u.bits.DeviceNumber = 0;
    DPRINT ("No device found\n");
 
    return FALSE;
}

SpiMiniportTimerDpc()

VOID NTAPI SpiMiniportTimerDpc	(	IN struct _KDPC *	Dpc,
		IN PVOID	DeviceObject,
		IN PVOID	SystemArgument1,
		IN PVOID	SystemArgument2
	)

Definition at line 2336 of file scsiport.c.

{
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
 
    DPRINT("Miniport timer DPC\n");
 
    DeviceExtension = ((PDEVICE_OBJECT)DeviceObject)->DeviceExtension;
 
    /* Acquire the spinlock */
    KeAcquireSpinLockAtDpcLevel(&DeviceExtension->SpinLock);
 
    /* Call the timer routine */
    if (DeviceExtension->HwScsiTimer != NULL)
    {
        DeviceExtension->HwScsiTimer(&DeviceExtension->MiniPortDeviceExtension);
    }
 
    /* Release the spinlock */
    KeReleaseSpinLockFromDpcLevel(&DeviceExtension->SpinLock);
 
    if (DeviceExtension->InterruptData.Flags & SCSI_PORT_NOTIFICATION_NEEDED)
    {
        ScsiPortDpcForIsr(NULL,
                          DeviceExtension->Common.DeviceObject,
                          NULL,
                          NULL);
    }
}

Referenced by ScsiPortInitialize().

SpiParseDeviceInfo()

static VOID SpiParseDeviceInfo ( IN PSCSI_PORT_DEVICE_EXTENSION  DeviceExtension, IN HANDLE  Key, IN PPORT_CONFIGURATION_INFORMATION  ConfigInfo, IN PCONFIGURATION_INFO  InternalConfigInfo, IN PUCHAR  Buffer  )

static

Definition at line 2615 of file scsiport.c.

{
    PKEY_VALUE_FULL_INFORMATION KeyValueInformation;
    PCM_FULL_RESOURCE_DESCRIPTOR FullResource;
    PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
    PCM_SCSI_DEVICE_DATA ScsiDeviceData;
    ULONG Length, Count, Dma = 0, Interrupt = 0;
    ULONG Index = 0, RangeCount = 0;
    UNICODE_STRING UnicodeString;
    ANSI_STRING AnsiString;
    NTSTATUS Status = STATUS_SUCCESS;
 
 
    KeyValueInformation = (PKEY_VALUE_FULL_INFORMATION) Buffer;
 
    /* Loop through all values in the device node */
    while(TRUE)
    {
        Status = ZwEnumerateValueKey(Key,
                                     Index,
                                     KeyValueFullInformation,
                                     Buffer,
                                     512,
                                     &Length);
 
        if (!NT_SUCCESS(Status))
            return;
 
        Index++;
 
        /* Length for DWORD is ok? */
        if (KeyValueInformation->Type == REG_DWORD &&
            KeyValueInformation->DataLength != sizeof(ULONG))
        {
            continue;
        }
 
        /* Get MaximumLogicalUnit */
        if (_wcsnicmp(KeyValueInformation->Name, L"MaximumLogicalUnit",
            KeyValueInformation->NameLength/2) == 0)
        {
 
            if (KeyValueInformation->Type != REG_DWORD)
            {
                DPRINT("Bad data type for MaximumLogicalUnit\n");
                continue;
            }
 
            DeviceExtension->MaxLunCount = *((PUCHAR)
                (Buffer + KeyValueInformation->DataOffset));
 
            /* Check / reset if needed */
            if (DeviceExtension->MaxLunCount > SCSI_MAXIMUM_LOGICAL_UNITS)
                DeviceExtension->MaxLunCount = SCSI_MAXIMUM_LOGICAL_UNITS;
 
            DPRINT("MaximumLogicalUnit = %d\n", DeviceExtension->MaxLunCount);
        }
 
        /* Get InitiatorTargetId */
        if (_wcsnicmp(KeyValueInformation->Name, L"InitiatorTargetId",
            KeyValueInformation->NameLength / 2) == 0)
        {
 
            if (KeyValueInformation->Type != REG_DWORD)
            {
                DPRINT("Bad data type for InitiatorTargetId\n");
                continue;
            }
 
            ConfigInfo->InitiatorBusId[0] = *((PUCHAR)
                (Buffer + KeyValueInformation->DataOffset));
 
            /* Check / reset if needed */
            if (ConfigInfo->InitiatorBusId[0] > ConfigInfo->MaximumNumberOfTargets - 1)
                ConfigInfo->InitiatorBusId[0] = (CCHAR)-1;
 
            DPRINT("InitiatorTargetId = %d\n", ConfigInfo->InitiatorBusId[0]);
        }
 
        /* Get ScsiDebug */
        if (_wcsnicmp(KeyValueInformation->Name, L"ScsiDebug",
            KeyValueInformation->NameLength/2) == 0)
        {
            DPRINT("ScsiDebug key not supported\n");
        }
 
        /* Check for a breakpoint */
        if (_wcsnicmp(KeyValueInformation->Name, L"BreakPointOnEntry",
            KeyValueInformation->NameLength/2) == 0)
        {
            DPRINT1("Breakpoint on entry requested!\n");
            DbgBreakPoint();
        }
 
        /* Get DisableSynchronousTransfers */
        if (_wcsnicmp(KeyValueInformation->Name, L"DisableSynchronousTransfers",
            KeyValueInformation->NameLength/2) == 0)
        {
            DeviceExtension->SrbFlags |= SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
            DPRINT("Synch transfers disabled\n");
        }
 
        /* Get DisableDisconnects */
        if (_wcsnicmp(KeyValueInformation->Name, L"DisableDisconnects",
            KeyValueInformation->NameLength/2) == 0)
        {
            DeviceExtension->SrbFlags |= SRB_FLAGS_DISABLE_DISCONNECT;
            DPRINT("Disconnects disabled\n");
        }
 
        /* Get DisableTaggedQueuing */
        if (_wcsnicmp(KeyValueInformation->Name, L"DisableTaggedQueuing",
            KeyValueInformation->NameLength/2) == 0)
        {
            InternalConfigInfo->DisableTaggedQueueing = TRUE;
            DPRINT("Tagged queueing disabled\n");
        }
 
        /* Get DisableMultipleRequests */
        if (_wcsnicmp(KeyValueInformation->Name, L"DisableMultipleRequests",
            KeyValueInformation->NameLength/2) == 0)
        {
            InternalConfigInfo->DisableMultipleLun = TRUE;
            DPRINT("Multiple requests disabled\n");
        }
 
        /* Get DriverParameters */
        if (_wcsnicmp(KeyValueInformation->Name, L"DriverParameters",
            KeyValueInformation->NameLength/2) == 0)
        {
            /* Skip if nothing */
            if (KeyValueInformation->DataLength == 0)
                continue;
 
            /* If there was something previously allocated - free it */
            if (InternalConfigInfo->Parameter != NULL)
                ExFreePool(InternalConfigInfo->Parameter);
 
            /* Allocate it */
            InternalConfigInfo->Parameter = ExAllocatePoolWithTag(NonPagedPool,
                                                           KeyValueInformation->DataLength, TAG_SCSIPORT);
 
            if (InternalConfigInfo->Parameter != NULL)
            {
                if (KeyValueInformation->Type != REG_SZ)
                {
                    /* Just copy */
                    RtlCopyMemory(
                        InternalConfigInfo->Parameter,
                        (PCCHAR)KeyValueInformation + KeyValueInformation->DataOffset,
                        KeyValueInformation->DataLength);
                }
                else
                {
                    /* If it's a unicode string, convert it to ansi */
                    UnicodeString.Length = (USHORT)KeyValueInformation->DataLength;
                    UnicodeString.MaximumLength = (USHORT)KeyValueInformation->DataLength;
                    UnicodeString.Buffer =
                        (PWSTR)((PCCHAR)KeyValueInformation + KeyValueInformation->DataOffset);
 
                    AnsiString.Length = 0;
                    AnsiString.MaximumLength = (USHORT)KeyValueInformation->DataLength;
                    AnsiString.Buffer = (PCHAR)InternalConfigInfo->Parameter;
 
                    Status = RtlUnicodeStringToAnsiString(&AnsiString,
                                                          &UnicodeString,
                                                          FALSE);
 
                    /* In case of error, free the allocated space */
                    if (!NT_SUCCESS(Status))
                    {
                        ExFreePool(InternalConfigInfo->Parameter);
                        InternalConfigInfo->Parameter = NULL;
                    }
 
                }
            }
 
            DPRINT("Found driver parameter\n");
        }
 
        /* Get MaximumSGList */
        if (_wcsnicmp(KeyValueInformation->Name, L"MaximumSGList",
            KeyValueInformation->NameLength/2) == 0)
        {
            if (KeyValueInformation->Type != REG_DWORD)
            {
                DPRINT("Bad data type for MaximumSGList\n");
                continue;
            }
 
            ConfigInfo->NumberOfPhysicalBreaks = *((PUCHAR)(Buffer + KeyValueInformation->DataOffset));
 
            /* Check / fix */
            if (ConfigInfo->NumberOfPhysicalBreaks > SCSI_MAXIMUM_PHYSICAL_BREAKS)
            {
                ConfigInfo->NumberOfPhysicalBreaks = SCSI_MAXIMUM_PHYSICAL_BREAKS;
            }
            else if (ConfigInfo->NumberOfPhysicalBreaks < SCSI_MINIMUM_PHYSICAL_BREAKS)
            {
                ConfigInfo->NumberOfPhysicalBreaks = SCSI_MINIMUM_PHYSICAL_BREAKS;
            }
 
            DPRINT("MaximumSGList = %d\n", ConfigInfo->NumberOfPhysicalBreaks);
        }
 
        /* Get NumberOfRequests */
        if (_wcsnicmp(KeyValueInformation->Name, L"NumberOfRequests",
            KeyValueInformation->NameLength/2) == 0)
        {
            if (KeyValueInformation->Type != REG_DWORD)
            {
                DPRINT("NumberOfRequests has wrong data type\n");
                continue;
            }
 
            DeviceExtension->RequestsNumber = *((PUCHAR)(Buffer + KeyValueInformation->DataOffset));
 
            /* Check / fix */
            if (DeviceExtension->RequestsNumber < 16)
            {
                DeviceExtension->RequestsNumber = 16;
            }
            else if (DeviceExtension->RequestsNumber > 512)
            {
                DeviceExtension->RequestsNumber = 512;
            }
 
            DPRINT("Number Of Requests = %d\n", DeviceExtension->RequestsNumber);
        }
 
        /* Get resource list */
        if (_wcsnicmp(KeyValueInformation->Name, L"ResourceList",
                KeyValueInformation->NameLength/2) == 0 ||
            _wcsnicmp(KeyValueInformation->Name, L"Configuration Data",
                KeyValueInformation->NameLength/2) == 0 )
        {
            if (KeyValueInformation->Type != REG_FULL_RESOURCE_DESCRIPTOR ||
                KeyValueInformation->DataLength < sizeof(REG_FULL_RESOURCE_DESCRIPTOR))
            {
                DPRINT("Bad data type for ResourceList\n");
                continue;
            }
            else
            {
                DPRINT("Found ResourceList\n");
            }
 
            FullResource = (PCM_FULL_RESOURCE_DESCRIPTOR)(Buffer + KeyValueInformation->DataOffset);
 
            /* Copy some info from it */
            InternalConfigInfo->BusNumber = FullResource->BusNumber;
            ConfigInfo->SystemIoBusNumber = FullResource->BusNumber;
 
            /* Loop through it */
            for (Count = 0; Count < FullResource->PartialResourceList.Count; Count++)
            {
                /* Get partial descriptor */
                PartialDescriptor =
                    &FullResource->PartialResourceList.PartialDescriptors[Count];
 
                /* Check datalength */
                if ((ULONG)((PCHAR)(PartialDescriptor + 1) -
                    (PCHAR)FullResource) > KeyValueInformation->DataLength)
                {
                    DPRINT("Resource data is of incorrect size\n");
                    break;
                }
 
                switch (PartialDescriptor->Type)
                {
                case CmResourceTypePort:
                    if (RangeCount >= ConfigInfo->NumberOfAccessRanges)
                    {
                        DPRINT("Too many access ranges\n");
                        continue;
                    }
 
                    InternalConfigInfo->AccessRanges[RangeCount].RangeInMemory = FALSE;
                    InternalConfigInfo->AccessRanges[RangeCount].RangeStart = PartialDescriptor->u.Port.Start;
                    InternalConfigInfo->AccessRanges[RangeCount].RangeLength = PartialDescriptor->u.Port.Length;
                    RangeCount++;
 
                    break;
 
                case CmResourceTypeMemory:
                    if (RangeCount >= ConfigInfo->NumberOfAccessRanges)
                    {
                        DPRINT("Too many access ranges\n");
                        continue;
                    }
 
                    InternalConfigInfo->AccessRanges[RangeCount].RangeInMemory = TRUE;
                    InternalConfigInfo->AccessRanges[RangeCount].RangeStart = PartialDescriptor->u.Memory.Start;
                    InternalConfigInfo->AccessRanges[RangeCount].RangeLength = PartialDescriptor->u.Memory.Length;
                    RangeCount++;
 
                    break;
 
                case CmResourceTypeInterrupt:
 
                    if (Interrupt == 0)
                    {
                        ConfigInfo->BusInterruptLevel =
                            PartialDescriptor->u.Interrupt.Level;
 
                        ConfigInfo->BusInterruptVector =
                            PartialDescriptor->u.Interrupt.Vector;
 
                        ConfigInfo->InterruptMode = (PartialDescriptor->Flags & CM_RESOURCE_INTERRUPT_LATCHED) ? Latched : LevelSensitive;
                    }
                    else if (Interrupt == 1)
                    {
                        ConfigInfo->BusInterruptLevel2 =
                        PartialDescriptor->u.Interrupt.Level;
 
                        ConfigInfo->BusInterruptVector2 =
                        PartialDescriptor->u.Interrupt.Vector;
 
                        ConfigInfo->InterruptMode2 = (PartialDescriptor->Flags & CM_RESOURCE_INTERRUPT_LATCHED) ? Latched : LevelSensitive;
                    }
 
                    Interrupt++;
                    break;
 
                case CmResourceTypeDma:
 
                    if (Dma == 0)
                    {
                        ConfigInfo->DmaChannel = PartialDescriptor->u.Dma.Channel;
                        ConfigInfo->DmaPort = PartialDescriptor->u.Dma.Port;
 
                        if (PartialDescriptor->Flags & CM_RESOURCE_DMA_8)
                            ConfigInfo->DmaWidth = Width8Bits;
                        else if ((PartialDescriptor->Flags & CM_RESOURCE_DMA_16) ||
                                 (PartialDescriptor->Flags & CM_RESOURCE_DMA_8_AND_16)) //???
                            ConfigInfo->DmaWidth = Width16Bits;
                        else if (PartialDescriptor->Flags & CM_RESOURCE_DMA_32)
                            ConfigInfo->DmaWidth = Width32Bits;
                    }
                    else if (Dma == 1)
                    {
                        ConfigInfo->DmaChannel2 = PartialDescriptor->u.Dma.Channel;
                        ConfigInfo->DmaPort2 = PartialDescriptor->u.Dma.Port;
 
                        if (PartialDescriptor->Flags & CM_RESOURCE_DMA_8)
                            ConfigInfo->DmaWidth2 = Width8Bits;
                        else if ((PartialDescriptor->Flags & CM_RESOURCE_DMA_16) ||
                                 (PartialDescriptor->Flags & CM_RESOURCE_DMA_8_AND_16)) //???
                            ConfigInfo->DmaWidth2 = Width16Bits;
                        else if (PartialDescriptor->Flags & CM_RESOURCE_DMA_32)
                            ConfigInfo->DmaWidth2 = Width32Bits;
                    }
 
                    Dma++;
                    break;
 
                case CmResourceTypeDeviceSpecific:
                    if (PartialDescriptor->u.DeviceSpecificData.DataSize <
                        sizeof(CM_SCSI_DEVICE_DATA) ||
                        (PCHAR) (PartialDescriptor + 1) - (PCHAR)FullResource +
                        PartialDescriptor->u.DeviceSpecificData.DataSize >
                        KeyValueInformation->DataLength)
                    {
                        DPRINT("Resource data length is incorrect");
                        break;
                    }
 
                    /* Set only one field from it */
                    ScsiDeviceData = (PCM_SCSI_DEVICE_DATA) (PartialDescriptor+1);
                    ConfigInfo->InitiatorBusId[0] = ScsiDeviceData->HostIdentifier;
                    break;
                }
            }
        }
    }
}

Referenced by SpiCreatePortConfig().

SpiProcessTimeout()

BOOLEAN NTAPI SpiProcessTimeout

(

PVOID

ServiceContext

)

Definition at line 2155 of file scsiport.c.

{
    PDEVICE_OBJECT DeviceObject = (PDEVICE_OBJECT)ServiceContext;
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
    ULONG Bus;
 
    DPRINT("SpiProcessTimeout() entered\n");
 
    DeviceExtension->TimerCount = -1;
 
    if (DeviceExtension->InterruptData.Flags & SCSI_PORT_RESET)
    {
        DeviceExtension->InterruptData.Flags &= ~SCSI_PORT_RESET;
 
        if (DeviceExtension->InterruptData.Flags & SCSI_PORT_RESET_REQUEST)
        {
            DeviceExtension->InterruptData.Flags &=  ~SCSI_PORT_RESET_REQUEST;
            ScsiPortStartPacket(ServiceContext);
        }
 
        return FALSE;
    }
    else
    {
        DPRINT("Resetting the bus\n");
 
        for (Bus = 0; Bus < DeviceExtension->NumberOfBuses; Bus++)
        {
            DeviceExtension->HwResetBus(DeviceExtension->MiniPortDeviceExtension, Bus);
 
            /* Reset flags and set reset timeout to 4 seconds */
            DeviceExtension->InterruptData.Flags |= SCSI_PORT_RESET;
            DeviceExtension->TimerCount = 4;
        }
 
        /* If miniport requested - request a dpc for it */
        if (DeviceExtension->InterruptData.Flags & SCSI_PORT_NOTIFICATION_NEEDED)
            IoRequestDpc(DeviceExtension->Common.DeviceObject, NULL, NULL);
    }
 
    return TRUE;
}

Referenced by ScsiPortIoTimer().

SpiResetBus()

BOOLEAN NTAPI SpiResetBus

(

PVOID

ServiceContext

)

Definition at line 2201 of file scsiport.c.

{
    PRESETBUS_PARAMS ResetParams = (PRESETBUS_PARAMS)ServiceContext;
    PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
 
    /* Perform the bus reset */
    DeviceExtension = (PSCSI_PORT_DEVICE_EXTENSION)ResetParams->DeviceExtension;
    DeviceExtension->HwResetBus(DeviceExtension->MiniPortDeviceExtension,
                                ResetParams->PathId);
 
    /* Set flags and start the timer */
    DeviceExtension->InterruptData.Flags |= SCSI_PORT_RESET;
    DeviceExtension->TimerCount = 4;
 
    /* If miniport requested - give him a DPC */
    if (DeviceExtension->InterruptData.Flags & SCSI_PORT_NOTIFICATION_NEEDED)
        IoRequestDpc(DeviceExtension->Common.DeviceObject, NULL, NULL);
 
    return TRUE;
}

Referenced by ScsiPortIoTimer().

SpiResourceToConfig()

static VOID SpiResourceToConfig ( IN PHW_INITIALIZATION_DATA  HwInitializationData, IN PCM_FULL_RESOURCE_DESCRIPTOR  ResourceDescriptor, IN PPORT_CONFIGURATION_INFORMATION  PortConfig  )

static

Definition at line 1619 of file scsiport.c.

{
    PACCESS_RANGE AccessRange;
    PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialData;
    ULONG RangeNumber;
    ULONG Index;
    ULONG Interrupt = 0;
    ULONG Dma = 0;
 
    RangeNumber = 0;
 
    /* Loop through all entries */
    for (Index = 0; Index < ResourceDescriptor->PartialResourceList.Count; Index++)
    {
        PartialData = &ResourceDescriptor->PartialResourceList.PartialDescriptors[Index];
 
        switch (PartialData->Type)
        {
        case CmResourceTypePort:
            /* Copy access ranges */
            if (RangeNumber < HwInitializationData->NumberOfAccessRanges)
            {
                AccessRange = &((*(PortConfig->AccessRanges))[RangeNumber]);
 
                AccessRange->RangeStart = PartialData->u.Port.Start;
                AccessRange->RangeLength = PartialData->u.Port.Length;
 
                AccessRange->RangeInMemory = FALSE;
                RangeNumber++;
            }
            break;
 
        case CmResourceTypeMemory:
            /* Copy access ranges */
            if (RangeNumber < HwInitializationData->NumberOfAccessRanges)
            {
                AccessRange = &((*(PortConfig->AccessRanges))[RangeNumber]);
 
                AccessRange->RangeStart = PartialData->u.Memory.Start;
                AccessRange->RangeLength = PartialData->u.Memory.Length;
 
                AccessRange->RangeInMemory = TRUE;
                RangeNumber++;
            }
            break;
 
        case CmResourceTypeInterrupt:
 
            if (Interrupt == 0)
            {
                /* Copy interrupt data */
                PortConfig->BusInterruptLevel = PartialData->u.Interrupt.Level;
                PortConfig->BusInterruptVector = PartialData->u.Interrupt.Vector;
 
                /* Set interrupt mode accordingly to the resource */
                if (PartialData->Flags == CM_RESOURCE_INTERRUPT_LATCHED)
                {
                    PortConfig->InterruptMode = Latched;
                }
                else if (PartialData->Flags == CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE)
                {
                    PortConfig->InterruptMode = LevelSensitive;
                }
            }
            else if (Interrupt == 1)
            {
                /* Copy interrupt data */
                PortConfig->BusInterruptLevel2 = PartialData->u.Interrupt.Level;
                PortConfig->BusInterruptVector2 = PartialData->u.Interrupt.Vector;
 
                /* Set interrupt mode accordingly to the resource */
                if (PartialData->Flags == CM_RESOURCE_INTERRUPT_LATCHED)
                {
                    PortConfig->InterruptMode2 = Latched;
                }
                else if (PartialData->Flags == CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE)
                {
                    PortConfig->InterruptMode2 = LevelSensitive;
                }
            }
 
            Interrupt++;
            break;
 
        case CmResourceTypeDma:
 
            if (Dma == 0)
            {
                PortConfig->DmaChannel = PartialData->u.Dma.Channel;
                PortConfig->DmaPort = PartialData->u.Dma.Port;
 
                if (PartialData->Flags & CM_RESOURCE_DMA_8)
                    PortConfig->DmaWidth = Width8Bits;
                else if ((PartialData->Flags & CM_RESOURCE_DMA_16) ||
                         (PartialData->Flags & CM_RESOURCE_DMA_8_AND_16)) //???
                    PortConfig->DmaWidth = Width16Bits;
                else if (PartialData->Flags & CM_RESOURCE_DMA_32)
                    PortConfig->DmaWidth = Width32Bits;
            }
            else if (Dma == 1)
            {
                PortConfig->DmaChannel2 = PartialData->u.Dma.Channel;
                PortConfig->DmaPort2 = PartialData->u.Dma.Port;
 
                if (PartialData->Flags & CM_RESOURCE_DMA_8)
                    PortConfig->DmaWidth2 = Width8Bits;
                else if ((PartialData->Flags & CM_RESOURCE_DMA_16) ||
                         (PartialData->Flags & CM_RESOURCE_DMA_8_AND_16)) //???
                    PortConfig->DmaWidth2 = Width16Bits;
                else if (PartialData->Flags & CM_RESOURCE_DMA_32)
                    PortConfig->DmaWidth2 = Width32Bits;
            }
            break;
        }
    }
}

SpQueryDeviceCallout()

NTSTATUS NTAPI SpQueryDeviceCallout	(	IN PVOID	Context,
		IN PUNICODE_STRING	PathName,
		IN INTERFACE_TYPE	BusType,
		IN ULONG	BusNumber,
		IN PKEY_VALUE_FULL_INFORMATION *	BusInformation,
		IN CONFIGURATION_TYPE	ControllerType,
		IN ULONG	ControllerNumber,
		IN PKEY_VALUE_FULL_INFORMATION *	ControllerInformation,
		IN CONFIGURATION_TYPE	PeripheralType,
		IN ULONG	PeripheralNumber,
		IN PKEY_VALUE_FULL_INFORMATION *	PeripheralInformation
	)

Definition at line 2999 of file scsiport.c.

{
    PBOOLEAN Found = (PBOOLEAN)Context;
    /* We just set our Found variable to TRUE */
 
    *Found = TRUE;
    return STATUS_SUCCESS;
}

Referenced by SpiCreatePortConfig().

Variable Documentation

InternalDebugLevel

ULONG InternalDebugLevel = 0x00

Definition at line 17 of file scsiport.c.

Referenced by ScsiDebugPrint().