mirror of
https://github.com/reactos/reactos.git
synced 2024-11-01 04:11:30 +00:00
1430 lines
37 KiB
C
1430 lines
37 KiB
C
/*
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* PROJECT: ReactOS Universal Serial Bus Bulk Storage Driver
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: drivers/usb/usbstor/pdo.c
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* PURPOSE: USB block storage device driver.
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* PROGRAMMERS:
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* James Tabor
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* Michael Martin (michael.martin@reactos.org)
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* Johannes Anderwald (johannes.anderwald@reactos.org)
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*/
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#include "usbstor.h"
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#define NDEBUG
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#include <debug.h>
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NTSTATUS
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USBSTOR_BuildCBW(
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IN ULONG Tag,
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IN ULONG DataTransferLength,
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IN UCHAR LUN,
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IN UCHAR CommandBlockLength,
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IN PUCHAR CommandBlock,
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IN OUT PCBW Control)
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{
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//
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// sanity check
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//
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ASSERT(CommandBlockLength <= 16);
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//
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// now initialize CBW
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//
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Control->Signature = CBW_SIGNATURE;
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Control->Tag = Tag;
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Control->DataTransferLength = DataTransferLength;
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Control->Flags = (CommandBlock[0] != SCSIOP_WRITE) ? 0x80 : 0x00;
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Control->LUN = (LUN & MAX_LUN);
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Control->CommandBlockLength = CommandBlockLength;
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//
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// copy command block
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//
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RtlCopyMemory(Control->CommandBlock, CommandBlock, CommandBlockLength);
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//
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// done
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//
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return STATUS_SUCCESS;
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}
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PIRP_CONTEXT
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USBSTOR_AllocateIrpContext()
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{
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PIRP_CONTEXT Context;
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//
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// allocate irp context
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//
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Context = (PIRP_CONTEXT)AllocateItem(NonPagedPool, sizeof(IRP_CONTEXT));
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if (!Context)
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{
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//
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// no memory
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//
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return NULL;
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}
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//
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// allocate cbw block
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//
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Context->cbw = (PCBW)AllocateItem(NonPagedPool, 512);
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if (!Context->cbw)
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{
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//
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// no memory
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//
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FreeItem(Context);
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return NULL;
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}
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//
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// done
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//
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return Context;
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}
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BOOLEAN
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USBSTOR_IsCSWValid(
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PIRP_CONTEXT Context)
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{
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//
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// sanity checks
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//
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if (Context->csw->Signature != CSW_SIGNATURE)
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{
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DPRINT1("[USBSTOR] Expected Signature %x but got %x\n", CSW_SIGNATURE, Context->csw->Signature);
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return FALSE;
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}
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if (Context->csw->Tag != (ULONG)Context->csw)
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{
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DPRINT1("[USBSTOR] Expected Tag %x but got %x\n", (ULONG)Context->csw, Context->csw->Tag);
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return FALSE;
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}
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if (Context->csw->Status != 0x00)
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{
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DPRINT1("[USBSTOR] Expected Status 0x00 but got %x\n", Context->csw->Status);
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return FALSE;
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}
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//
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// CSW is valid
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//
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return TRUE;
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}
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NTSTATUS
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USBSTOR_QueueWorkItem(
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PIRP_CONTEXT Context,
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PIRP Irp)
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{
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PERRORHANDLER_WORKITEM_DATA ErrorHandlerWorkItemData;
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//
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// Allocate Work Item Data
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//
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ErrorHandlerWorkItemData = ExAllocatePoolWithTag(NonPagedPool, sizeof(ERRORHANDLER_WORKITEM_DATA), USB_STOR_TAG);
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if (!ErrorHandlerWorkItemData)
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{
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//
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// no memory
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//
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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//
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// error handling started
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//
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Context->FDODeviceExtension->SrbErrorHandlingActive = TRUE;
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//
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// srb error handling finished
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//
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Context->FDODeviceExtension->TimerWorkQueueEnabled = FALSE;
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//
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// Initialize and queue the work item to handle the error
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//
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ExInitializeWorkItem(&ErrorHandlerWorkItemData->WorkQueueItem,
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ErrorHandlerWorkItemRoutine,
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ErrorHandlerWorkItemData);
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ErrorHandlerWorkItemData->DeviceObject = Context->FDODeviceExtension->FunctionalDeviceObject;
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ErrorHandlerWorkItemData->Context = Context;
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ErrorHandlerWorkItemData->Irp = Irp;
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ErrorHandlerWorkItemData->DeviceObject = Context->FDODeviceExtension->FunctionalDeviceObject;
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DPRINT1("Queuing WorkItemROutine\n");
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ExQueueWorkItem(&ErrorHandlerWorkItemData->WorkQueueItem, DelayedWorkQueue);
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return STATUS_MORE_PROCESSING_REQUIRED;
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}
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//
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// driver verifier
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//
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IO_COMPLETION_ROUTINE USBSTOR_CSWCompletionRoutine;
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NTSTATUS
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NTAPI
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USBSTOR_CSWCompletionRoutine(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp,
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PVOID Ctx)
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{
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PIRP_CONTEXT Context;
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PIO_STACK_LOCATION IoStack;
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PSCSI_REQUEST_BLOCK Request;
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PCDB pCDB;
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PREAD_CAPACITY_DATA_EX CapacityDataEx;
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PREAD_CAPACITY_DATA CapacityData;
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PUFI_CAPACITY_RESPONSE Response;
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NTSTATUS Status;
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//
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// access context
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//
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Context = (PIRP_CONTEXT)Ctx;
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//
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// is there a mdl
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//
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if (Context->TransferBufferMDL)
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{
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//
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// is there an irp associated
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//
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if (Context->Irp)
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{
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//
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// did we allocate the mdl
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//
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if (Context->TransferBufferMDL != Context->Irp->MdlAddress)
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{
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//
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// free mdl
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//
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IoFreeMdl(Context->TransferBufferMDL);
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}
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}
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else
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{
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//
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// free mdl
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//
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IoFreeMdl(Context->TransferBufferMDL);
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}
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}
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DPRINT("USBSTOR_CSWCompletionRoutine Status %x\n", Irp->IoStatus.Status);
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if (!NT_SUCCESS(Irp->IoStatus.Information))
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{
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if (Context->ErrorIndex == 0)
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{
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//
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// increment error index
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//
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Context->ErrorIndex = 1;
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//
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// clear stall and resend cbw
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//
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Status = USBSTOR_QueueWorkItem(Context, Irp);
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ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
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return STATUS_MORE_PROCESSING_REQUIRED;
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}
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//
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// perform reset recovery
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//
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Context->ErrorIndex = 2;
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IoFreeIrp(Irp);
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Status = USBSTOR_QueueWorkItem(Context, NULL);
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ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
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return STATUS_MORE_PROCESSING_REQUIRED;
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}
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if (!USBSTOR_IsCSWValid(Context))
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{
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//
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// perform reset recovery
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//
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Context->ErrorIndex = 2;
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IoFreeIrp(Irp);
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Status = USBSTOR_QueueWorkItem(Context, NULL);
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ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
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return STATUS_MORE_PROCESSING_REQUIRED;
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}
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//
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// get current stack location
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//
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IoStack = IoGetCurrentIrpStackLocation(Context->Irp);
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//
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// get request block
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//
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Request = (PSCSI_REQUEST_BLOCK)IoStack->Parameters.Others.Argument1;
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ASSERT(Request);
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Status = Irp->IoStatus.Status;
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//
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// get SCSI command data block
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//
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pCDB = (PCDB)Request->Cdb;
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Request->SrbStatus = SRB_STATUS_SUCCESS;
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//
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// read capacity needs special work
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//
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if (pCDB->AsByte[0] == SCSIOP_READ_CAPACITY)
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{
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//
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// get output buffer
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//
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Response = (PUFI_CAPACITY_RESPONSE)Context->TransferData;
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//
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// store in pdo
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//
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Context->PDODeviceExtension->BlockLength = NTOHL(Response->BlockLength);
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Context->PDODeviceExtension->LastLogicBlockAddress = NTOHL(Response->LastLogicalBlockAddress);
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if (Request->DataTransferLength == sizeof(READ_CAPACITY_DATA_EX))
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{
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//
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// get input buffer
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//
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CapacityDataEx = (PREAD_CAPACITY_DATA_EX)Request->DataBuffer;
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//
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// set result
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//
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CapacityDataEx->BytesPerBlock = Response->BlockLength;
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CapacityDataEx->LogicalBlockAddress.QuadPart = Response->LastLogicalBlockAddress;
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Irp->IoStatus.Information = sizeof(READ_CAPACITY_DATA_EX);
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}
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else
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{
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//
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// get input buffer
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//
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CapacityData = (PREAD_CAPACITY_DATA)Request->DataBuffer;
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//
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// set result
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//
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CapacityData->BytesPerBlock = Response->BlockLength;
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CapacityData->LogicalBlockAddress = Response->LastLogicalBlockAddress;
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Irp->IoStatus.Information = sizeof(READ_CAPACITY_DATA);
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}
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//
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// free response
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//
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FreeItem(Context->TransferData);
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}
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//
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// free cbw
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//
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FreeItem(Context->cbw);
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//
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// FIXME: check status
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//
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Context->Irp->IoStatus.Status = Irp->IoStatus.Status;
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Context->Irp->IoStatus.Information = Context->TransferDataLength;
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//
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// terminate current request
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//
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USBSTOR_QueueTerminateRequest(Context->PDODeviceExtension->LowerDeviceObject, Context->Irp);
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//
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// complete request
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//
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IoCompleteRequest(Context->Irp, IO_NO_INCREMENT);
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//
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// start next request
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//
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USBSTOR_QueueNextRequest(Context->PDODeviceExtension->LowerDeviceObject);
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//
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// free our allocated irp
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//
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IoFreeIrp(Irp);
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//
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// free context
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//
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FreeItem(Context);
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//
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// done
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//
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return STATUS_MORE_PROCESSING_REQUIRED;
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}
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VOID
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USBSTOR_SendCSW(
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PIRP_CONTEXT Context,
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PIRP Irp)
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{
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PIO_STACK_LOCATION IoStack;
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//
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// get next irp stack location
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//
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IoStack = IoGetNextIrpStackLocation(Irp);
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//
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// now initialize the urb for sending the csw
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//
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UsbBuildInterruptOrBulkTransferRequest(&Context->Urb,
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sizeof(struct _URB_BULK_OR_INTERRUPT_TRANSFER),
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Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkInPipeIndex].PipeHandle,
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Context->csw,
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NULL,
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512, //FIXME
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USBD_TRANSFER_DIRECTION_IN | USBD_SHORT_TRANSFER_OK,
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NULL);
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//
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// initialize stack location
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//
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IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
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IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_URB;
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IoStack->Parameters.Others.Argument1 = (PVOID)&Context->Urb;
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IoStack->Parameters.DeviceIoControl.InputBufferLength = Context->Urb.UrbHeader.Length;
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Irp->IoStatus.Status = STATUS_SUCCESS;
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//
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// setup completion routine
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//
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IoSetCompletionRoutine(Irp, USBSTOR_CSWCompletionRoutine, Context, TRUE, TRUE, TRUE);
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//
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// call driver
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//
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IoCallDriver(Context->FDODeviceExtension->LowerDeviceObject, Irp);
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}
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//
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// driver verifier
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//
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IO_COMPLETION_ROUTINE USBSTOR_DataCompletionRoutine;
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NTSTATUS
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NTAPI
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USBSTOR_DataCompletionRoutine(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp,
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PVOID Ctx)
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{
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PIRP_CONTEXT Context;
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NTSTATUS Status;
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DPRINT("USBSTOR_DataCompletionRoutine Irp %p Ctx %p Status %x\n", Irp, Ctx, Irp->IoStatus.Status);
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//
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// access context
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//
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Context = (PIRP_CONTEXT)Ctx;
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if (!NT_SUCCESS(Irp->IoStatus.Status))
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{
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//
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// clear stall and resend cbw
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//
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Context->ErrorIndex = 1;
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Status = USBSTOR_QueueWorkItem(Context, Irp);
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ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
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return STATUS_MORE_PROCESSING_REQUIRED;
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}
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//
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// send csw
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//
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USBSTOR_SendCSW(Context, Irp);
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//
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// cancel completion
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//
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return STATUS_MORE_PROCESSING_REQUIRED;
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}
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//
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// driver verifier
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//
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IO_COMPLETION_ROUTINE USBSTOR_CBWCompletionRoutine;
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NTSTATUS
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NTAPI
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USBSTOR_CBWCompletionRoutine(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp,
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PVOID Ctx)
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{
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PIRP_CONTEXT Context;
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PIO_STACK_LOCATION IoStack;
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UCHAR Code;
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USBD_PIPE_HANDLE PipeHandle;
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DPRINT("USBSTOR_CBWCompletionRoutine Irp %p Ctx %p Status %x\n", Irp, Ctx, Irp->IoStatus.Status);
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//
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// access context
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//
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Context = (PIRP_CONTEXT)Ctx;
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//
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// get next stack location
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//
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IoStack = IoGetNextIrpStackLocation(Irp);
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//
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// is there data to be submitted
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//
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if (Context->TransferDataLength)
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{
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//
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// get command code
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//
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Code = Context->cbw->CommandBlock[0];
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if (Code == SCSIOP_WRITE)
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{
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//
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// write request use bulk out pipe
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//
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PipeHandle = Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkOutPipeIndex].PipeHandle;
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}
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else
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{
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//
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// default bulk in pipe
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//
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PipeHandle = Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkInPipeIndex].PipeHandle;
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}
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|
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//
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// now initialize the urb for sending data
|
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//
|
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UsbBuildInterruptOrBulkTransferRequest(&Context->Urb,
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sizeof(struct _URB_BULK_OR_INTERRUPT_TRANSFER),
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PipeHandle,
|
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NULL,
|
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Context->TransferBufferMDL,
|
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Context->TransferDataLength,
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((Code == SCSIOP_WRITE) ? USBD_TRANSFER_DIRECTION_OUT : (USBD_TRANSFER_DIRECTION_IN | USBD_SHORT_TRANSFER_OK)),
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NULL);
|
|
|
|
//
|
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// setup completion routine
|
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//
|
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IoSetCompletionRoutine(Irp, USBSTOR_DataCompletionRoutine, Context, TRUE, TRUE, TRUE);
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}
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else
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{
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//
|
|
// now initialize the urb for sending the csw
|
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//
|
|
|
|
UsbBuildInterruptOrBulkTransferRequest(&Context->Urb,
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sizeof(struct _URB_BULK_OR_INTERRUPT_TRANSFER),
|
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Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkInPipeIndex].PipeHandle,
|
|
Context->csw,
|
|
NULL,
|
|
512, //FIXME
|
|
USBD_TRANSFER_DIRECTION_IN | USBD_SHORT_TRANSFER_OK,
|
|
NULL);
|
|
|
|
//
|
|
// setup completion routine
|
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//
|
|
IoSetCompletionRoutine(Irp, USBSTOR_CSWCompletionRoutine, Context, TRUE, TRUE, TRUE);
|
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}
|
|
|
|
//
|
|
// initialize stack location
|
|
//
|
|
IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
|
|
IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_URB;
|
|
IoStack->Parameters.Others.Argument1 = (PVOID)&Context->Urb;
|
|
IoStack->Parameters.DeviceIoControl.InputBufferLength = Context->Urb.UrbHeader.Length;
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
|
|
//
|
|
// call driver
|
|
//
|
|
IoCallDriver(Context->FDODeviceExtension->LowerDeviceObject, Irp);
|
|
|
|
return STATUS_MORE_PROCESSING_REQUIRED;
|
|
}
|
|
|
|
VOID
|
|
DumpCBW(
|
|
PUCHAR Block)
|
|
{
|
|
DPRINT("%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
|
|
Block[0] & 0xFF, Block[1] & 0xFF, Block[2] & 0xFF, Block[3] & 0xFF, Block[4] & 0xFF, Block[5] & 0xFF, Block[6] & 0xFF, Block[7] & 0xFF, Block[8] & 0xFF, Block[9] & 0xFF,
|
|
Block[10] & 0xFF, Block[11] & 0xFF, Block[12] & 0xFF, Block[13] & 0xFF, Block[14] & 0xFF, Block[15] & 0xFF, Block[16] & 0xFF, Block[17] & 0xFF, Block[18] & 0xFF, Block[19] & 0xFF,
|
|
Block[20] & 0xFF, Block[21] & 0xFF, Block[22] & 0xFF, Block[23] & 0xFF, Block[24] & 0xFF, Block[25] & 0xFF, Block[26] & 0xFF, Block[27] & 0xFF, Block[28] & 0xFF, Block[29] & 0xFF,
|
|
Block[30] & 0xFF);
|
|
|
|
}
|
|
|
|
NTSTATUS
|
|
USBSTOR_SendCBW(
|
|
PIRP_CONTEXT Context,
|
|
PIRP Irp)
|
|
{
|
|
PIO_STACK_LOCATION IoStack;
|
|
|
|
//
|
|
// get next stack location
|
|
//
|
|
IoStack = IoGetNextIrpStackLocation(Irp);
|
|
|
|
//
|
|
// initialize stack location
|
|
//
|
|
IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
|
|
IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_URB;
|
|
IoStack->Parameters.Others.Argument1 = (PVOID)&Context->Urb;
|
|
IoStack->Parameters.DeviceIoControl.InputBufferLength = Context->Urb.UrbHeader.Length;
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
|
|
//
|
|
// setup completion routine
|
|
//
|
|
IoSetCompletionRoutine(Irp, USBSTOR_CBWCompletionRoutine, Context, TRUE, TRUE, TRUE);
|
|
|
|
//
|
|
// call driver
|
|
//
|
|
return IoCallDriver(Context->FDODeviceExtension->LowerDeviceObject, Irp);
|
|
}
|
|
|
|
NTSTATUS
|
|
USBSTOR_SendRequest(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP OriginalRequest,
|
|
IN UCHAR CommandLength,
|
|
IN PUCHAR Command,
|
|
IN ULONG TransferDataLength,
|
|
IN PUCHAR TransferData,
|
|
IN ULONG RetryCount)
|
|
{
|
|
PIRP_CONTEXT Context;
|
|
PPDO_DEVICE_EXTENSION PDODeviceExtension;
|
|
PFDO_DEVICE_EXTENSION FDODeviceExtension;
|
|
PIRP Irp;
|
|
PUCHAR MdlVirtualAddress;
|
|
|
|
//
|
|
// first allocate irp context
|
|
//
|
|
Context = USBSTOR_AllocateIrpContext();
|
|
if (!Context)
|
|
{
|
|
//
|
|
// no memory
|
|
//
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// get PDO device extension
|
|
//
|
|
PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
//
|
|
// get FDO device extension
|
|
//
|
|
FDODeviceExtension = (PFDO_DEVICE_EXTENSION)PDODeviceExtension->LowerDeviceObject->DeviceExtension;
|
|
|
|
//
|
|
// now build the cbw
|
|
//
|
|
USBSTOR_BuildCBW((ULONG)Context->cbw,
|
|
TransferDataLength,
|
|
PDODeviceExtension->LUN,
|
|
CommandLength,
|
|
Command,
|
|
Context->cbw);
|
|
|
|
DPRINT("CBW %p\n", Context->cbw);
|
|
DumpCBW((PUCHAR)Context->cbw);
|
|
|
|
//
|
|
// now initialize the urb
|
|
//
|
|
UsbBuildInterruptOrBulkTransferRequest(&Context->Urb,
|
|
sizeof(struct _URB_BULK_OR_INTERRUPT_TRANSFER),
|
|
FDODeviceExtension->InterfaceInformation->Pipes[FDODeviceExtension->BulkOutPipeIndex].PipeHandle,
|
|
Context->cbw,
|
|
NULL,
|
|
sizeof(CBW),
|
|
USBD_TRANSFER_DIRECTION_OUT,
|
|
NULL);
|
|
|
|
//
|
|
// initialize rest of context
|
|
//
|
|
Context->Irp = OriginalRequest;
|
|
Context->TransferData = TransferData;
|
|
Context->TransferDataLength = TransferDataLength;
|
|
Context->FDODeviceExtension = FDODeviceExtension;
|
|
Context->PDODeviceExtension = PDODeviceExtension;
|
|
Context->RetryCount = RetryCount;
|
|
|
|
//
|
|
// is there transfer data
|
|
//
|
|
if (Context->TransferDataLength)
|
|
{
|
|
//
|
|
// check if the original request already does have an mdl associated
|
|
//
|
|
if (OriginalRequest)
|
|
{
|
|
if ((OriginalRequest->MdlAddress != NULL) &&
|
|
(Context->TransferData == NULL || Command[0] == SCSIOP_READ || Command[0] == SCSIOP_WRITE))
|
|
{
|
|
//
|
|
// Sanity check that the Mdl does describe the TransferData for read/write
|
|
//
|
|
if (CommandLength == UFI_READ_WRITE_CMD_LEN)
|
|
{
|
|
MdlVirtualAddress = MmGetMdlVirtualAddress(OriginalRequest->MdlAddress);
|
|
|
|
//
|
|
// is there an offset
|
|
//
|
|
if (MdlVirtualAddress != Context->TransferData)
|
|
{
|
|
//
|
|
// lets build an mdl
|
|
//
|
|
Context->TransferBufferMDL = IoAllocateMdl(Context->TransferData, MmGetMdlByteCount(OriginalRequest->MdlAddress), FALSE, FALSE, NULL);
|
|
if (!Context->TransferBufferMDL)
|
|
{
|
|
//
|
|
// failed to allocate MDL
|
|
//
|
|
FreeItem(Context->cbw);
|
|
FreeItem(Context);
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// now build the partial mdl
|
|
//
|
|
IoBuildPartialMdl(OriginalRequest->MdlAddress, Context->TransferBufferMDL, Context->TransferData, Context->TransferDataLength);
|
|
}
|
|
}
|
|
|
|
if (!Context->TransferBufferMDL)
|
|
{
|
|
//
|
|
// I/O paging request
|
|
//
|
|
Context->TransferBufferMDL = OriginalRequest->MdlAddress;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// allocate mdl for buffer, buffer must be allocated from NonPagedPool
|
|
//
|
|
Context->TransferBufferMDL = IoAllocateMdl(Context->TransferData, Context->TransferDataLength, FALSE, FALSE, NULL);
|
|
if (!Context->TransferBufferMDL)
|
|
{
|
|
//
|
|
// failed to allocate MDL
|
|
//
|
|
FreeItem(Context->cbw);
|
|
FreeItem(Context);
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// build mdl for nonpaged pool
|
|
//
|
|
MmBuildMdlForNonPagedPool(Context->TransferBufferMDL);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// allocate mdl for buffer, buffer must be allocated from NonPagedPool
|
|
//
|
|
Context->TransferBufferMDL = IoAllocateMdl(Context->TransferData, Context->TransferDataLength, FALSE, FALSE, NULL);
|
|
if (!Context->TransferBufferMDL)
|
|
{
|
|
//
|
|
// failed to allocate MDL
|
|
//
|
|
FreeItem(Context->cbw);
|
|
FreeItem(Context);
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// build mdl for nonpaged pool
|
|
//
|
|
MmBuildMdlForNonPagedPool(Context->TransferBufferMDL);
|
|
}
|
|
}
|
|
|
|
//
|
|
// now allocate the request
|
|
//
|
|
Irp = IoAllocateIrp(DeviceObject->StackSize, FALSE);
|
|
if (!Irp)
|
|
{
|
|
FreeItem(Context->cbw);
|
|
FreeItem(Context);
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
if (OriginalRequest)
|
|
{
|
|
//
|
|
// mark orignal irp as pending
|
|
//
|
|
IoMarkIrpPending(OriginalRequest);
|
|
}
|
|
|
|
//
|
|
// send request
|
|
//
|
|
USBSTOR_SendCBW(Context, Irp);
|
|
|
|
//
|
|
// done
|
|
//
|
|
return STATUS_PENDING;
|
|
}
|
|
|
|
NTSTATUS
|
|
USBSTOR_SendFormatCapacity(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG RetryCount)
|
|
{
|
|
UFI_READ_FORMAT_CAPACITY Cmd;
|
|
PPDO_DEVICE_EXTENSION PDODeviceExtension;
|
|
PIO_STACK_LOCATION IoStack;
|
|
PSCSI_REQUEST_BLOCK Request;
|
|
|
|
//
|
|
// get current stack location
|
|
//
|
|
IoStack = IoGetCurrentIrpStackLocation(Irp);
|
|
|
|
//
|
|
// get PDO device extension
|
|
//
|
|
PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
//
|
|
// get request block
|
|
//
|
|
Request = (PSCSI_REQUEST_BLOCK)IoStack->Parameters.Others.Argument1;
|
|
|
|
//
|
|
// initialize inquiry cmd
|
|
//
|
|
RtlZeroMemory(&Cmd, sizeof(UFI_READ_FORMAT_CAPACITY));
|
|
Cmd.Code = SCSIOP_READ_FORMATTED_CAPACITY;
|
|
Cmd.LUN = (PDODeviceExtension->LUN & MAX_LUN);
|
|
Cmd.AllocationLengthMsb = HTONS(Request->DataTransferLength & 0xFFFF) >> 8;
|
|
Cmd.AllocationLengthLsb = HTONS(Request->DataTransferLength & 0xFFFF) & 0xFF;
|
|
|
|
//
|
|
// now send the request
|
|
//
|
|
return USBSTOR_SendRequest(DeviceObject, Irp, UFI_READ_FORMAT_CAPACITY_CMD_LEN, (PUCHAR)&Cmd, Request->DataTransferLength, (PUCHAR)Request->DataBuffer, RetryCount);
|
|
}
|
|
|
|
NTSTATUS
|
|
USBSTOR_SendInquiry(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG RetryCount)
|
|
{
|
|
UFI_INQUIRY_CMD Cmd;
|
|
PPDO_DEVICE_EXTENSION PDODeviceExtension;
|
|
PIO_STACK_LOCATION IoStack;
|
|
PSCSI_REQUEST_BLOCK Request;
|
|
|
|
//
|
|
// get current stack location
|
|
//
|
|
IoStack = IoGetCurrentIrpStackLocation(Irp);
|
|
|
|
//
|
|
// get request block
|
|
//
|
|
Request = (PSCSI_REQUEST_BLOCK)IoStack->Parameters.Others.Argument1;
|
|
|
|
//
|
|
// get PDO device extension
|
|
//
|
|
PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
//
|
|
// initialize inquiry cmd
|
|
//
|
|
RtlZeroMemory(&Cmd, sizeof(UFI_INQUIRY_CMD));
|
|
Cmd.Code = SCSIOP_INQUIRY;
|
|
Cmd.LUN = (PDODeviceExtension->LUN & MAX_LUN);
|
|
Cmd.AllocationLength = sizeof(UFI_INQUIRY_RESPONSE);
|
|
|
|
//
|
|
// sanity check
|
|
//
|
|
ASSERT(Request->DataTransferLength >= sizeof(UFI_INQUIRY_RESPONSE));
|
|
|
|
//
|
|
// now send the request
|
|
//
|
|
return USBSTOR_SendRequest(DeviceObject, Irp, UFI_INQUIRY_CMD_LEN, (PUCHAR)&Cmd, Request->DataTransferLength, (PUCHAR)Request->DataBuffer, RetryCount);
|
|
}
|
|
|
|
NTSTATUS
|
|
USBSTOR_SendCapacity(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG RetryCount)
|
|
{
|
|
UFI_CAPACITY_CMD Cmd;
|
|
PUFI_CAPACITY_RESPONSE Response;
|
|
PPDO_DEVICE_EXTENSION PDODeviceExtension;
|
|
|
|
//
|
|
// get PDO device extension
|
|
//
|
|
PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
//
|
|
// allocate capacity response
|
|
//
|
|
Response = (PUFI_CAPACITY_RESPONSE)AllocateItem(NonPagedPool, PAGE_SIZE);
|
|
if (!Response)
|
|
{
|
|
//
|
|
// no memory
|
|
//
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// initialize capacity cmd
|
|
//
|
|
RtlZeroMemory(&Cmd, sizeof(UFI_INQUIRY_CMD));
|
|
Cmd.Code = SCSIOP_READ_CAPACITY;
|
|
Cmd.LUN = (PDODeviceExtension->LUN & MAX_LUN);
|
|
|
|
//
|
|
// send request, response will be freed in completion routine
|
|
//
|
|
return USBSTOR_SendRequest(DeviceObject, Irp, UFI_READ_CAPACITY_CMD_LEN, (PUCHAR)&Cmd, sizeof(UFI_CAPACITY_RESPONSE), (PUCHAR)Response, RetryCount);
|
|
}
|
|
|
|
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
|
|
}
|
|
|
|
NTSTATUS
|
|
USBSTOR_SendReadWrite(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN ULONG RetryCount)
|
|
{
|
|
UFI_READ_WRITE_CMD Cmd;
|
|
PPDO_DEVICE_EXTENSION PDODeviceExtension;
|
|
PCDB pCDB;
|
|
ULONG BlockCount, Temp;
|
|
PIO_STACK_LOCATION IoStack;
|
|
PSCSI_REQUEST_BLOCK Request;
|
|
|
|
//
|
|
// 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;
|
|
|
|
//
|
|
// get PDO device extension
|
|
//
|
|
PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
//
|
|
// informal debug print
|
|
//
|
|
DPRINT("USBSTOR_SendReadWrite DataTransferLength %lu, BlockLength %lu\n", Request->DataTransferLength, PDODeviceExtension->BlockLength);
|
|
|
|
//
|
|
// sanity check
|
|
//
|
|
ASSERT(PDODeviceExtension->BlockLength);
|
|
|
|
//
|
|
// block count
|
|
//
|
|
BlockCount = Request->DataTransferLength / PDODeviceExtension->BlockLength;
|
|
|
|
//
|
|
// initialize read cmd
|
|
//
|
|
RtlZeroMemory(&Cmd, sizeof(UFI_READ_WRITE_CMD));
|
|
Cmd.Code = pCDB->AsByte[0];
|
|
Cmd.LUN = (PDODeviceExtension->LUN & MAX_LUN);
|
|
Cmd.ContiguousLogicBlocksByte0 = pCDB->CDB10.TransferBlocksMsb;
|
|
Cmd.ContiguousLogicBlocksByte1 = pCDB->CDB10.TransferBlocksLsb;
|
|
Cmd.LogicalBlockByte0 = pCDB->CDB10.LogicalBlockByte0;
|
|
Cmd.LogicalBlockByte1 = pCDB->CDB10.LogicalBlockByte1;
|
|
Cmd.LogicalBlockByte2 = pCDB->CDB10.LogicalBlockByte2;
|
|
Cmd.LogicalBlockByte3 = pCDB->CDB10.LogicalBlockByte3;
|
|
|
|
//
|
|
// sanity check
|
|
//
|
|
Temp = (Cmd.ContiguousLogicBlocksByte0 << 8 | Cmd.ContiguousLogicBlocksByte1);
|
|
ASSERT(Temp == BlockCount);
|
|
|
|
DPRINT("USBSTOR_SendReadWrite BlockAddress %x%x%x%x BlockCount %lu BlockLength %lu\n", Cmd.LogicalBlockByte0, Cmd.LogicalBlockByte1, Cmd.LogicalBlockByte2, Cmd.LogicalBlockByte3, BlockCount, PDODeviceExtension->BlockLength);
|
|
|
|
//
|
|
// send request
|
|
//
|
|
return USBSTOR_SendRequest(DeviceObject, Irp, UFI_READ_WRITE_CMD_LEN, (PUCHAR)&Cmd, Request->DataTransferLength, (PUCHAR)Request->DataBuffer, RetryCount);
|
|
}
|
|
|
|
NTSTATUS
|
|
USBSTOR_SendTestUnit(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN OUT PIRP Irp,
|
|
IN ULONG RetryCount)
|
|
{
|
|
UFI_TEST_UNIT_CMD Cmd;
|
|
PPDO_DEVICE_EXTENSION PDODeviceExtension;
|
|
PIO_STACK_LOCATION IoStack;
|
|
PSCSI_REQUEST_BLOCK Request;
|
|
|
|
//
|
|
// get current stack location
|
|
//
|
|
IoStack = IoGetCurrentIrpStackLocation(Irp);
|
|
|
|
//
|
|
// get request block
|
|
//
|
|
Request = (PSCSI_REQUEST_BLOCK)IoStack->Parameters.Others.Argument1;
|
|
|
|
//
|
|
// no transfer length
|
|
//
|
|
ASSERT(Request->DataTransferLength == 0);
|
|
|
|
//
|
|
// get PDO device extension
|
|
//
|
|
PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
//
|
|
// initialize test unit cmd
|
|
//
|
|
RtlZeroMemory(&Cmd, sizeof(UFI_TEST_UNIT_CMD));
|
|
Cmd.Code = SCSIOP_TEST_UNIT_READY;
|
|
Cmd.LUN = (PDODeviceExtension->LUN & MAX_LUN);
|
|
|
|
//
|
|
// send the request
|
|
//
|
|
return USBSTOR_SendRequest(DeviceObject, Irp, UFI_TEST_UNIT_CMD_LEN, (PUCHAR)&Cmd, 0, NULL, RetryCount);
|
|
}
|
|
|
|
NTSTATUS
|
|
USBSTOR_SendUnknownRequest(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN OUT PIRP Irp,
|
|
IN ULONG RetryCount)
|
|
{
|
|
PPDO_DEVICE_EXTENSION PDODeviceExtension;
|
|
PIO_STACK_LOCATION IoStack;
|
|
PSCSI_REQUEST_BLOCK Request;
|
|
UFI_UNKNOWN_CMD Cmd;
|
|
|
|
//
|
|
// get current stack location
|
|
//
|
|
IoStack = IoGetCurrentIrpStackLocation(Irp);
|
|
|
|
//
|
|
// get request block
|
|
//
|
|
Request = IoStack->Parameters.Others.Argument1;
|
|
|
|
//
|
|
// get PDO device extension
|
|
//
|
|
PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
//
|
|
// check that we're sending to the right LUN
|
|
//
|
|
ASSERT(Request->Cdb[1] == (PDODeviceExtension->LUN & MAX_LUN));
|
|
|
|
//
|
|
// sanity check
|
|
//
|
|
ASSERT(Request->CdbLength <= sizeof(UFI_UNKNOWN_CMD));
|
|
|
|
//
|
|
// initialize test unit cmd
|
|
//
|
|
RtlCopyMemory(&Cmd, Request->Cdb, Request->CdbLength);
|
|
|
|
//
|
|
// send the request
|
|
//
|
|
return USBSTOR_SendRequest(DeviceObject, Irp, Request->CdbLength, (PUCHAR)&Cmd, Request->DataTransferLength, Request->DataBuffer, RetryCount);
|
|
}
|
|
|
|
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;
|
|
}
|