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UsbDk: Make filter devices receive IoInCallerContext event

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Signed-off-by: Pavel Gurvich <pavel@daynix.com>
Signed-off-by: Dmitry Fleytman <dfleytma@redhat.com>
This commit is contained in:
Dmitry Fleytman 2014-04-21 15:32:35 +03:00
parent d3686076c1
commit 1fef4eee3c
3 changed files with 15 additions and 1 deletions
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5
UsbDk/FilterDevice.cpp
View file

@ -23,7 +23,7 @@ public:
CUsbDkFilterDeviceInit(const CUsbDkFilterDeviceInit&) = delete;
CUsbDkFilterDeviceInit& operator= (const CUsbDkFilterDeviceInit&) = delete;
private:
static CUsbDkFilterDevice::CStrategist &Strategy(WDFDEVICE Device) const
static CUsbDkFilterDevice::CStrategist &Strategy(WDFDEVICE Device)
{ return UsbDkFilterGetContext(Device)->UsbDkFilter->m_Strategy; }
};
@ -35,6 +35,9 @@ NTSTATUS CUsbDkFilterDeviceInit::Configure()
SetPowerCallbacks([](_In_ WDFDEVICE Device)
{ return Strategy(Device)->MakeAvailable(); });
SetIoInCallerContextCallback([](_In_ WDFDEVICE Device, WDFREQUEST Request)
{ return Strategy(Device)->IoInCallerContext(Device, Request); });
auto status = SetPreprocessCallback([](_In_ WDFDEVICE Device, _Inout_ PIRP Irp)
{ return Strategy(Device)->PNPPreProcess(Irp); },
IRP_MJ_PNP);

9
UsbDk/FilterStrategy.cpp
View file

@ -10,6 +10,15 @@ NTSTATUS CUsbDkFilterStrategy::PNPPreProcess(PIRP Irp)
return WdfDeviceWdmDispatchPreprocessedIrp(m_Owner->WdfObject(), Irp);
}
void CUsbDkFilterStrategy::IoInCallerContext(WDFDEVICE Device, WDFREQUEST Request)
{
auto status = WdfDeviceEnqueueRequest(Device, Request);
if (!NT_SUCCESS(status))
{
WdfRequestComplete(Request, status);
}
}
NTSTATUS CUsbDkFilterStrategy::Create(CUsbDkFilterDevice *Owner)
{
m_Owner = Owner;

2
UsbDk/FilterStrategy.h
View file

@ -1,6 +1,7 @@
#pragma once
#include "ntddk.h"
#include "wdf.h"
#include "Alloc.h"
#include "UsbDkUtil.h"
@ -14,6 +15,7 @@ public:
virtual NTSTATUS Create(CUsbDkFilterDevice *Owner);
virtual void Delete();
virtual NTSTATUS PNPPreProcess(PIRP Irp);
virtual void IoInCallerContext(WDFDEVICE Device, WDFREQUEST Request);
virtual NTSTATUS MakeAvailable() = 0;