Exemplo n.º 1
0
VOID
NTAPI
USBSTOR_Cancel(
    IN  PDEVICE_OBJECT DeviceObject,
    IN  PIRP Irp)
{
    PFDO_DEVICE_EXTENSION FDODeviceExtension;

    //
    // get FDO device extension
    //
    FDODeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;

    //
    // sanity check
    //
    ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
    ASSERT(FDODeviceExtension->Common.IsFDO);

    //
    // acquire irp list lock
    //
    KeAcquireSpinLockAtDpcLevel(&FDODeviceExtension->IrpListLock);

    //
    // remove the irp from the list
    //
    RemoveEntryList(&Irp->Tail.Overlay.ListEntry);

    //
    // release irp list lock
    //
    KeReleaseSpinLockFromDpcLevel(&FDODeviceExtension->IrpListLock);    

    //
    // now release the cancel lock
    //
    IoReleaseCancelSpinLock(Irp->CancelIrql);

    //
    // set cancel status
    //
    Irp->IoStatus.Status = STATUS_CANCELLED;

    //
    // now cancel the irp
    //
    USBSTOR_QueueTerminateRequest(DeviceObject, Irp);
    IoCompleteRequest(Irp, IO_NO_INCREMENT);

    //
    // start the next one
    //
    USBSTOR_QueueNextRequest(DeviceObject);
}
Exemplo n.º 2
0
VOID
NTAPI
USBSTOR_CancelIo(
    IN  PDEVICE_OBJECT DeviceObject,
    IN  PIRP Irp)
{
    PFDO_DEVICE_EXTENSION FDODeviceExtension;

    //
    // get FDO device extension
    //
    FDODeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;

    //
    // sanity check
    //
    ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
    ASSERT(FDODeviceExtension->Common.IsFDO);

    //
    // this IRP isn't in our list here
    //  

    //
    // now release the cancel lock
    //
    IoReleaseCancelSpinLock(Irp->CancelIrql);

    //
    // set cancel status
    //
    Irp->IoStatus.Status = STATUS_CANCELLED;

    //
    // now cancel the irp
    //
    USBSTOR_QueueTerminateRequest(DeviceObject, Irp);
    IoCompleteRequest(Irp, IO_NO_INCREMENT);

    //
    // start the next one
    //
    USBSTOR_QueueNextRequest(DeviceObject);
}
Exemplo n.º 3
0
VOID
NTAPI
USBSTOR_StartIo(
    PDEVICE_OBJECT DeviceObject,
    PIRP Irp)
{
    PIO_STACK_LOCATION IoStack;
    PFDO_DEVICE_EXTENSION FDODeviceExtension;
    PPDO_DEVICE_EXTENSION PDODeviceExtension;
    KIRQL OldLevel;
    BOOLEAN ResetInProgress;

    DPRINT("USBSTOR_StartIo\n");

    //
    // get FDO device extension
    //
    FDODeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;

    //
    // sanity check
    //
    ASSERT(FDODeviceExtension->Common.IsFDO);

    //
    // acquire cancel spinlock
    //
    IoAcquireCancelSpinLock(&OldLevel);

    //
    // set cancel routine to zero
    //
    IoSetCancelRoutine(Irp, NULL);

    //
    // check if the irp has been cancelled
    //
    if (Irp->Cancel)
    {
        //
        // irp has been cancelled, release cancel spinlock
        //
        IoReleaseCancelSpinLock(OldLevel);

        //
        // irp is cancelled
        //
        Irp->IoStatus.Status = STATUS_CANCELLED;
        Irp->IoStatus.Information = 0;

        //
        // terminate request
        //
        USBSTOR_QueueTerminateRequest(DeviceObject, Irp);

        //
        // complete request
        //
        IoCompleteRequest(Irp, IO_NO_INCREMENT);

        //
        // queue next request
        //
        USBSTOR_QueueNextRequest(DeviceObject);

        //
        // done
        //
        return;
    }

    //
    // release cancel spinlock
    //
    IoReleaseCancelSpinLock(OldLevel);

    //
    // acquire lock
    //
    KeAcquireSpinLock(&FDODeviceExtension->IrpListLock, &OldLevel);

    //
    // check reset is in progress
    //
    ResetInProgress = FDODeviceExtension->ResetInProgress;
    ASSERT(ResetInProgress == FALSE);

    //
    // release lock
    //
    KeReleaseSpinLock(&FDODeviceExtension->IrpListLock, OldLevel);

    //
    // get current irp stack location
    //
    IoStack = IoGetCurrentIrpStackLocation(Irp);

    //
    // get pdo device extension
    //
    PDODeviceExtension = (PPDO_DEVICE_EXTENSION)IoStack->DeviceObject->DeviceExtension;

    //
    // sanity check
    //
    ASSERT(PDODeviceExtension->Common.IsFDO == FALSE);

    //
    // is a reset in progress
    //
    if (ResetInProgress)
    {
        //
        // hard reset is in progress
        //
        Irp->IoStatus.Information = 0;
        Irp->IoStatus.Status = STATUS_DEVICE_DOES_NOT_EXIST;
        USBSTOR_QueueTerminateRequest(DeviceObject, Irp);
        IoCompleteRequest(Irp, IO_NO_INCREMENT);
        return;
    }

    //
    // execute scsi
    //
    USBSTOR_HandleExecuteSCSI(IoStack->DeviceObject, Irp, 0);

    //
    // FIXME: handle error
    //
}
Exemplo n.º 4
0
NTSTATUS
USBSTOR_SendModeSense(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG RetryCount)
{
#if 0
    UFI_SENSE_CMD Cmd;
    NTSTATUS Status;
    PVOID Response;
    PCBW OutControl;
    PCDB pCDB;
    PUFI_MODE_PARAMETER_HEADER Header;
#endif
    PPDO_DEVICE_EXTENSION PDODeviceExtension;
    PIO_STACK_LOCATION IoStack;
    PSCSI_REQUEST_BLOCK Request;

    //
    // get PDO device extension
    //
    PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;

    //
    // sanity check
    //
    ASSERT(PDODeviceExtension->Common.IsFDO == FALSE);

    //
    // get current stack location
    //
    IoStack = IoGetCurrentIrpStackLocation(Irp);

    //
    // get request block
    //
    Request = (PSCSI_REQUEST_BLOCK)IoStack->Parameters.Others.Argument1;

    RtlZeroMemory(Request->DataBuffer, Request->DataTransferLength);
    Request->SrbStatus = SRB_STATUS_SUCCESS;
    Irp->IoStatus.Information = Request->DataTransferLength;
    Irp->IoStatus.Status = STATUS_SUCCESS;
    USBSTOR_QueueTerminateRequest(PDODeviceExtension->LowerDeviceObject, Irp);
    IoCompleteRequest(Irp, IO_NO_INCREMENT);

    //
    // start next request
    //
    USBSTOR_QueueNextRequest(PDODeviceExtension->LowerDeviceObject);

    return STATUS_SUCCESS;

#if 0
    //
    // get SCSI command data block
    //
    pCDB = (PCDB)Request->Cdb;

    //
    // get PDO device extension
    //
    PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;

    //
    // allocate sense response from non paged pool
    //
    Response = (PUFI_CAPACITY_RESPONSE)AllocateItem(NonPagedPool, Request->DataTransferLength);
    if (!Response)
    {
        //
        // no memory
        //
        return STATUS_INSUFFICIENT_RESOURCES;
    }

    //
    // sanity check
    //


    // Supported pages
    // MODE_PAGE_ERROR_RECOVERY
    // MODE_PAGE_FLEXIBILE
    // MODE_PAGE_LUN_MAPPING
    // MODE_PAGE_FAULT_REPORTING
    // MODE_SENSE_RETURN_ALL

    //
    // initialize mode sense cmd
    //
    RtlZeroMemory(&Cmd, sizeof(UFI_INQUIRY_CMD));
    Cmd.Code = SCSIOP_MODE_SENSE;
    Cmd.LUN = (PDODeviceExtension->LUN & MAX_LUN);
    Cmd.PageCode = pCDB->MODE_SENSE.PageCode;
    Cmd.PC = pCDB->MODE_SENSE.Pc;
    Cmd.AllocationLength = HTONS(pCDB->MODE_SENSE.AllocationLength);

    DPRINT1("PageCode %x\n", pCDB->MODE_SENSE.PageCode);
    DPRINT1("PC %x\n", pCDB->MODE_SENSE.Pc);

    //
    // now send mode sense cmd
    //
    Status = USBSTOR_SendCBW(DeviceObject, UFI_SENSE_CMD_LEN, (PUCHAR)&Cmd, Request->DataTransferLength, &OutControl);
    if (!NT_SUCCESS(Status))
    {
        //
        // failed to send CBW
        //
        DPRINT1("USBSTOR_SendCapacityCmd> USBSTOR_SendCBW failed with %x\n", Status);
        FreeItem(Response);
        ASSERT(FALSE);
        return Status;
    }

    //
    // now send data block response
    //
    Status = USBSTOR_SendData(DeviceObject, Request->DataTransferLength, Response);
    if (!NT_SUCCESS(Status))
    {
        //
        // failed to send CBW
        //
        DPRINT1("USBSTOR_SendCapacityCmd> USBSTOR_SendData failed with %x\n", Status);
        FreeItem(Response);
        ASSERT(FALSE);
        return Status;
    }

    Header = (PUFI_MODE_PARAMETER_HEADER)Response;

    //
    // TODO: build layout
    //
    // first struct is the header
    // MODE_PARAMETER_HEADER / _MODE_PARAMETER_HEADER10
    //
    // followed by
    // MODE_PARAMETER_BLOCK
    //
    //
    UNIMPLEMENTED

    //
    // send csw
    //
    Status = USBSTOR_SendCSW(DeviceObject, OutControl, 512, &CSW);

    DPRINT1("------------------------\n");
    DPRINT1("CSW %p\n", &CSW);
    DPRINT1("Signature %x\n", CSW.Signature);
    DPRINT1("Tag %x\n", CSW.Tag);
    DPRINT1("DataResidue %x\n", CSW.DataResidue);
    DPRINT1("Status %x\n", CSW.Status);

    //
    // FIXME: handle error
    //
    ASSERT(CSW.Status == 0);
    ASSERT(CSW.DataResidue == 0);

    //
    // calculate transfer length
    //
    *TransferBufferLength = Request->DataTransferLength - CSW.DataResidue;

    //
    // copy buffer
    //
    RtlCopyMemory(Request->DataBuffer, Response, *TransferBufferLength);

    //
    // free item
    //
    FreeItem(OutControl);

    //
    // free response
    //
    FreeItem(Response);

    //
    // done
    //
    return Status;
#endif
}
Exemplo n.º 5
0
NTSTATUS
NTAPI
USBSTOR_CSWCompletionRoutine(
    PDEVICE_OBJECT DeviceObject,
    PIRP Irp,
    PVOID Ctx)
{
    PIRP_CONTEXT Context;
    PIO_STACK_LOCATION IoStack;
    PSCSI_REQUEST_BLOCK Request;
    PCDB pCDB;
    PREAD_CAPACITY_DATA_EX CapacityDataEx;
    PREAD_CAPACITY_DATA CapacityData;
    PUFI_CAPACITY_RESPONSE Response;

    NTSTATUS Status;
    PURB Urb;

    //
    // access context
    //
    Context = (PIRP_CONTEXT)Ctx;

    //
    // is there a mdl
    //
    if (Context->TransferBufferMDL)
    {
        //
        // is there an irp associated
        //
        if (Context->Irp)
        {
            //
            // did we allocate the mdl
            //
            if (Context->TransferBufferMDL != Context->Irp->MdlAddress)
            {
                //
                // free mdl
                //
                IoFreeMdl(Context->TransferBufferMDL);
            }
        }
        else
        {
            //
            // free mdl
            //
            IoFreeMdl(Context->TransferBufferMDL);
        }
    }

    DPRINT("USBSTOR_CSWCompletionRoutine Status %x\n", Irp->IoStatus.Status);

    if (!NT_SUCCESS(Irp->IoStatus.Information))
    {
        if (Context->ErrorIndex == 0)
        {
            //
            // increment error index
            //
            Context->ErrorIndex = 1;

            //
            // clear stall and resend cbw
            //
            Status = USBSTOR_QueueWorkItem(Context, Irp);
            ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
            return STATUS_MORE_PROCESSING_REQUIRED;
        }

        //
        // perform reset recovery
        //
        Context->ErrorIndex = 2;
        IoFreeIrp(Irp);
        Status = USBSTOR_QueueWorkItem(Context, NULL);
        ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
        return STATUS_MORE_PROCESSING_REQUIRED;
    }

    if (!USBSTOR_IsCSWValid(Context))
    {
        //
        // perform reset recovery
        //
        Context->ErrorIndex = 2;
        IoFreeIrp(Irp);
        Status = USBSTOR_QueueWorkItem(Context, NULL);
        ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
        return STATUS_MORE_PROCESSING_REQUIRED;
    }


    //
    // get current stack location
    //
    IoStack = IoGetCurrentIrpStackLocation(Context->Irp);

    //
    // get request block
    //
    Request = (PSCSI_REQUEST_BLOCK)IoStack->Parameters.Others.Argument1;
    ASSERT(Request);

    Status = Irp->IoStatus.Status;
    Urb = &Context->Urb;

    //
    // get SCSI command data block
    //
    pCDB = (PCDB)Request->Cdb;
    Request->SrbStatus = SRB_STATUS_SUCCESS;

    //
    // read capacity needs special work
    //
    if (pCDB->AsByte[0] == SCSIOP_READ_CAPACITY)
    {
        //
        // get output buffer
        //
        Response = (PUFI_CAPACITY_RESPONSE)Context->TransferData;

        //
        // store in pdo
        //
        Context->PDODeviceExtension->BlockLength = NTOHL(Response->BlockLength);
        Context->PDODeviceExtension->LastLogicBlockAddress = NTOHL(Response->LastLogicalBlockAddress);

        if (Request->DataTransferLength == sizeof(READ_CAPACITY_DATA_EX))
        {
            //
            // get input buffer
            //
            CapacityDataEx = (PREAD_CAPACITY_DATA_EX)Request->DataBuffer;

            //
            // set result
            //
            CapacityDataEx->BytesPerBlock = Response->BlockLength;
            CapacityDataEx->LogicalBlockAddress.QuadPart = Response->LastLogicalBlockAddress;
            Irp->IoStatus.Information = sizeof(READ_CAPACITY_DATA_EX);
       }
       else
       {
            //
            // get input buffer
            //
            CapacityData = (PREAD_CAPACITY_DATA)Request->DataBuffer;

            //
            // set result
            //
            CapacityData->BytesPerBlock = Response->BlockLength;
            CapacityData->LogicalBlockAddress = Response->LastLogicalBlockAddress;
            Irp->IoStatus.Information = sizeof(READ_CAPACITY_DATA);
       }

       //
       // free response
       //
       FreeItem(Context->TransferData);
    }

    //
    // free cbw
    //
    FreeItem(Context->cbw);

    //
    // FIXME: check status
    //
    Context->Irp->IoStatus.Status = Irp->IoStatus.Status;
    Context->Irp->IoStatus.Information = Context->TransferDataLength;

    //
    // terminate current request
    //
    USBSTOR_QueueTerminateRequest(Context->PDODeviceExtension->LowerDeviceObject, Context->Irp);

    //
    // complete request
    //
    IoCompleteRequest(Context->Irp, IO_NO_INCREMENT);

    //
    // start next request
    //
    USBSTOR_QueueNextRequest(Context->PDODeviceExtension->LowerDeviceObject);

    //
    // free our allocated irp
    //
    IoFreeIrp(Irp);

    //
    // free context
    //
    FreeItem(Context);

    //
    // done
    //
    return STATUS_MORE_PROCESSING_REQUIRED;
}
Exemplo n.º 6
0
NTSTATUS
USBSTOR_HandleExecuteSCSI(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN ULONG RetryCount)
{
    PCDB pCDB;
    NTSTATUS Status;
    PIO_STACK_LOCATION IoStack;
    PSCSI_REQUEST_BLOCK Request;
    PPDO_DEVICE_EXTENSION PDODeviceExtension;

    //
    // get PDO device extension
    //
    PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;

    //
    // sanity check
    //
    ASSERT(PDODeviceExtension->Common.IsFDO == FALSE);

    //
    // get current stack location
    //
    IoStack = IoGetCurrentIrpStackLocation(Irp);

    //
    // get request block
    //
    Request = (PSCSI_REQUEST_BLOCK)IoStack->Parameters.Others.Argument1;

    //
    // get SCSI command data block
    //
    pCDB = (PCDB)Request->Cdb;

    DPRINT("USBSTOR_HandleExecuteSCSI Operation Code %x\n", pCDB->AsByte[0]);

    if (pCDB->AsByte[0] == SCSIOP_READ_CAPACITY)
    {
        //
        // sanity checks
        //
        ASSERT(Request->DataBuffer);

        DPRINT("SCSIOP_READ_CAPACITY Length %lu\n", Request->DataTransferLength);
        Status = USBSTOR_SendCapacity(DeviceObject, Irp, RetryCount);
    }
    else if (pCDB->MODE_SENSE.OperationCode == SCSIOP_MODE_SENSE)
    {
        DPRINT("SCSIOP_MODE_SENSE DataTransferLength %lu\n", Request->DataTransferLength);
        ASSERT(pCDB->MODE_SENSE.AllocationLength == Request->DataTransferLength);
        ASSERT(Request->DataBuffer);

        //
        // send mode sense command
        //
        Status = USBSTOR_SendModeSense(DeviceObject, Irp, RetryCount);
    }
    else if (pCDB->AsByte[0] == SCSIOP_READ_FORMATTED_CAPACITY)
    {
        DPRINT("SCSIOP_READ_FORMATTED_CAPACITY DataTransferLength %lu\n", Request->DataTransferLength);

        //
        // send read format capacity
        //
        Status = USBSTOR_SendFormatCapacity(DeviceObject, Irp, RetryCount);
    }
    else if (pCDB->AsByte[0] == SCSIOP_INQUIRY)
    {
        DPRINT("SCSIOP_INQUIRY DataTransferLength %lu\n", Request->DataTransferLength);

        //
        // send read format capacity
        //
        Status = USBSTOR_SendInquiry(DeviceObject, Irp, RetryCount);
    }
    else if (pCDB->MODE_SENSE.OperationCode == SCSIOP_READ ||  pCDB->MODE_SENSE.OperationCode == SCSIOP_WRITE)
    {
        DPRINT("SCSIOP_READ / SCSIOP_WRITE DataTransferLength %lu\n", Request->DataTransferLength);

        //
        // send read / write command
        //
        Status = USBSTOR_SendReadWrite(DeviceObject, Irp, RetryCount);
    }
    else if (pCDB->AsByte[0] == SCSIOP_MEDIUM_REMOVAL)
    {
        DPRINT("SCSIOP_MEDIUM_REMOVAL\n");

        //
        // just complete the request
        //
        Request->SrbStatus = SRB_STATUS_SUCCESS;
        Irp->IoStatus.Status = STATUS_SUCCESS;
        Irp->IoStatus.Information = Request->DataTransferLength;
        USBSTOR_QueueTerminateRequest(PDODeviceExtension->LowerDeviceObject, Irp);
        IoCompleteRequest(Irp, IO_NO_INCREMENT);

        //
        // start next request
        //
        USBSTOR_QueueNextRequest(PDODeviceExtension->LowerDeviceObject);

        return STATUS_SUCCESS;
    }
    else if (pCDB->MODE_SENSE.OperationCode == SCSIOP_TEST_UNIT_READY)
    {
        DPRINT("SCSIOP_TEST_UNIT_READY\n");

        //
        // send test unit command
        //
        Status = USBSTOR_SendTestUnit(DeviceObject, Irp, RetryCount);
    }
    else
    {
        // Unknown request. Simply forward
        DPRINT1("Forwarding unknown Operation Code %x\n", pCDB->AsByte[0]);
        Status = USBSTOR_SendUnknownRequest(DeviceObject, Irp, RetryCount);
    }

    return Status;
}