// This routine is called by the framework when the PnP manager sends an
// IRP_MN_START_DEVICE request to the driver stack. This routine is
// responsible for performing operations that are necessary to make the
// driver's device operational (for e.g. mapping the hardware resources
// into memory).
NTSTATUS ActivityDevice::OnPrepareHardware(
_In_ WDFDEVICE device, // Supplies a handle to the framework device object
_In_ WDFCMRESLIST /*ResourcesRaw*/, // Supplies a handle to a collection of framework resource
// objects. This collection identifies the raw (bus-relative) hardware
// resources that have been assigned to the device.
_In_ WDFCMRESLIST /*ResourcesTranslated*/) // Supplies a handle to a collection of framework
// resource objects. This collection identifies the translated
// (system-physical) hardware resources that have been assigned to the
// device. The resources appear from the CPU's point of view.
{
NTSTATUS status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
// Create WDFOBJECT for the sensor
WDF_OBJECT_ATTRIBUTES sensorAttributes = {};
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&sensorAttributes, ActivityDevice);
// Register sensor instance with clx
SENSOROBJECT sensorInstance = NULL;
status = SensorsCxSensorCreate(device, &sensorAttributes, &sensorInstance);
if (!NT_SUCCESS(status))
{
TraceError("ACT %!FUNC! SensorsCxSensorCreate failed %!STATUS!", status);
}
else
{
PActivityDevice pDevice = GetActivityContextFromSensorInstance(sensorInstance);
if (nullptr == pDevice)
{
status = STATUS_INSUFFICIENT_RESOURCES;
TraceError("ACT %!FUNC! GetActivityContextFromSensorInstance failed %!STATUS!", status);
}
else
{
// Fill out properties
status = pDevice->Initialize(device, sensorInstance);
if (!NT_SUCCESS(status))
{
TraceError("ACT %!FUNC! Initialize device object failed %!STATUS!", status);
}
else
{
SENSOR_CONFIG sensorConfig = {};
SENSOR_CONFIG_INIT(&sensorConfig);
sensorConfig.pEnumerationList = pDevice->m_pEnumerationProperties;
status = SensorsCxSensorInitialize(sensorInstance, &sensorConfig);
if (!NT_SUCCESS(status))
{
TraceError("ACT %!FUNC! SensorsCxSensorInitialize failed %!STATUS!", status);
}
}
}
}
SENSOR_FunctionExit(status);
return status;
}
// This routine is called by the framework when the PnP manager sends an
// IRP_MN_START_DEVICE request to the driver stack. This routine is
// responsible for performing operations that are necessary to make the
// driver's device operational (for e.g. mapping the hardware resources
// into memory).
NTSTATUS
CustomSensorDevice::OnPrepareHardware(
_In_ WDFDEVICE Device, // Supplies a handle to the framework device object
_In_ WDFCMRESLIST /*ResourcesRaw*/, // Supplies a handle to a collection of framework resource
// objects. This collection identifies the raw (bus-relative) hardware
// resources that have been assigned to the device.
_In_ WDFCMRESLIST /*ResourcesTranslated*/) // Supplies a handle to a collection of framework
// resource objects. This collection identifies the translated
// (system-physical) hardware resources that have been assigned to the
// device. The resources appear from the CPU's point of view.
{
PCustomSensorDevice pDevice = nullptr;
WDF_OBJECT_ATTRIBUTES SensorAttr = {};
SENSOR_CONFIG SensorConfig = {};
SENSOROBJECT SensorInstance = nullptr;
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
// Construct sensor instance
// Create WDFOBJECT for the sensor
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&SensorAttr, CustomSensorDevice);
// Register sensor instance with clx
Status = SensorsCxSensorCreate(Device, &SensorAttr, &SensorInstance);
if (!NT_SUCCESS(Status))
{
TraceError("CSTM %!FUNC! SensorsCxSensorCreate failed %!STATUS!", Status);
goto Exit;
}
pDevice = GetCustomSensorContextFromSensorInstance(SensorInstance);
if (nullptr == pDevice)
{
Status = STATUS_INSUFFICIENT_RESOURCES;
TraceError("CSTM %!FUNC! GetCustomSensorContextFromSensorInstance failed %!STATUS!", Status);
goto Exit;
}
// Fill out properties
Status = pDevice->Initialize(Device, SensorInstance);
if (!NT_SUCCESS(Status))
{
TraceError("CSTM %!FUNC! Initialize device object failed %!STATUS!", Status);
goto Exit;
}
SENSOR_CONFIG_INIT(&SensorConfig);
SensorConfig.pEnumerationList = pDevice->m_pEnumerationProperties;
Status = SensorsCxSensorInitialize(SensorInstance, &SensorConfig);
if (!NT_SUCCESS(Status))
{
TraceError("CSTM %!FUNC! SensorsCxSensorInitialize failed %!STATUS!", Status);
goto Exit;
}
Exit:
SENSOR_FunctionExit(Status);
return Status;
}
