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client.cpp
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client.cpp
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//Copyright (C) Microsoft Corporation, All Rights Reserved.
//
//Abstract:
//
// This module contains the implementation of driver callback functions
// from clx to ADXL345 accelerometer.
//
//Environment:
//
// Windows User-Mode Driver Framework (UMDF)
#include "Device.h"
#include "Adxl345.h"
#include <timeapi.h>
#include "Client.tmh"
// Analog Adxl345 Unique ID
// {EF2C014C-DEBA-43F4-890D-978095684DD6}
DEFINE_GUID(GUID_Adxl345Device_UniqueID,
0xef2c014c, 0xdeba, 0x43f4, 0x89, 0xd, 0x97, 0x80, 0x95, 0x68, 0x4d, 0xd6);
// Helper function for initializing ADXL345AccDevice. Returns status.
inline NTSTATUS InitSensorCollection(
_In_ ULONG CollectionListCount,
_Outptr_ PSENSOR_COLLECTION_LIST *CollectionList,
_In_ SENSOROBJECT SensorInstance) // SENSOROBJECT for sensor instance
{
WDF_OBJECT_ATTRIBUTES MemoryAttributes;
WDF_OBJECT_ATTRIBUTES_INIT(&MemoryAttributes);
MemoryAttributes.ParentObject = SensorInstance;
WDFMEMORY MemoryHandle = NULL;
ULONG MemorySize = SENSOR_COLLECTION_LIST_SIZE(CollectionListCount);
NTSTATUS Status = WdfMemoryCreate(&MemoryAttributes,
PagedPool,
SENSORV2_POOL_TAG_ACCELEROMETER,
MemorySize,
&MemoryHandle,
reinterpret_cast<PVOID*>(CollectionList));
if (!NT_SUCCESS(Status) || nullptr == *CollectionList)
{
Status = STATUS_UNSUCCESSFUL;
TraceError("ACC %!FUNC! WdfMemoryCreate failed %!STATUS!", Status);
return Status;
}
SENSOR_COLLECTION_LIST_INIT(*CollectionList, MemorySize);
(*CollectionList)->Count = CollectionListCount;
return Status;
}
// Helper function for initializing ADXL345AccDevice. Returns status.
inline NTSTATUS InitSensorProperty(
_In_ ULONG PropertyListCount,
_Outptr_ PSENSOR_PROPERTY_LIST *PropertyList,
_In_ SENSOROBJECT SensorInstance) // SENSOROBJECT for sensor instance
{
WDF_OBJECT_ATTRIBUTES MemoryAttributes;
WDF_OBJECT_ATTRIBUTES_INIT(&MemoryAttributes);
MemoryAttributes.ParentObject = SensorInstance;
WDFMEMORY MemoryHandle = NULL;
ULONG MemorySize = SENSOR_PROPERTY_LIST_SIZE(PropertyListCount);
NTSTATUS Status = WdfMemoryCreate(&MemoryAttributes,
PagedPool,
SENSORV2_POOL_TAG_ACCELEROMETER,
MemorySize,
&MemoryHandle,
reinterpret_cast<PVOID*>(PropertyList));
if (!NT_SUCCESS(Status) || nullptr == *PropertyList)
{
Status = STATUS_UNSUCCESSFUL;
TraceError("ACC %!FUNC! WdfMemoryCreate failed %!STATUS!", Status);
return Status;
}
SENSOR_PROPERTY_LIST_INIT(*PropertyList, MemorySize);
(*PropertyList)->Count = PropertyListCount;
return Status;
}
// This routine initializes the sensor to its default properties
NTSTATUS ADXL345AccDevice::Initialize(
_In_ WDFDEVICE Device, // WDFDEVICE object
_In_ SENSOROBJECT SensorInstance) // SENSOROBJECT for each sensor instance
{
SENSOR_FunctionEnter();
// Store device and instance
m_Device = Device;
m_SensorInstance = SensorInstance;
m_Started = false;
// Create Lock
NTSTATUS Status = WdfWaitLockCreate(WDF_NO_OBJECT_ATTRIBUTES, &(m_I2CWaitLock));
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! WdfWaitLockCreate failed %!STATUS!", Status);
}
// Sensor Enumeration Properties
if (NT_SUCCESS(Status))
{
Status = InitSensorCollection(SENSOR_ENUMERATION_PROPERTIES_COUNT, &m_pEnumerationProperties, SensorInstance);
if (NT_SUCCESS(Status))
{
m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_TYPE].Key = DEVPKEY_Sensor_Type;
InitPropVariantFromCLSID(GUID_SensorType_Accelerometer3D,
&(m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_TYPE].Value));
m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_MANUFACTURER].Key = DEVPKEY_Sensor_Manufacturer;
InitPropVariantFromString(SENSOR_ACCELEROMETER_MANUFACTURER,
&(m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_MANUFACTURER].Value));
m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_MODEL].Key = DEVPKEY_Sensor_Model;
InitPropVariantFromString(SENSOR_ACCELEROMETER_MODEL,
&(m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_MODEL].Value));
m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_CONNECTION_TYPE].Key = DEVPKEY_Sensor_ConnectionType;
// The DEVPKEY_Sensor_ConnectionType values match the SensorConnectionType enumeration
InitPropVariantFromUInt32(0, // 0: INTEGRATED, 1: ATTACHED, 2: EXTERNAL
&(m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_CONNECTION_TYPE].Value));
m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_PERSISTENT_UNIQUE_ID].Key = DEVPKEY_Sensor_PersistentUniqueId;
InitPropVariantFromCLSID(GUID_Adxl345Device_UniqueID,
&(m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_PERSISTENT_UNIQUE_ID].Value));
m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_CATEGORY].Key = DEVPKEY_Sensor_Category;
InitPropVariantFromCLSID(GUID_SensorCategory_Motion,
&(m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_CATEGORY].Value));
m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_ISPRIMARY].Key = DEVPKEY_Sensor_IsPrimary;
InitPropVariantFromBoolean(TRUE,
&(m_pEnumerationProperties->List[SENSOR_ENUMERATION_PROPERTY_ISPRIMARY].Value)); // This value should be set to TRUE in order for simple device orientation
// to pick up ACC sample readings from this sensor. If this value is set to FALSE
// simple device orientation may ignore this sensor.
}
}
// Supported Data-Fields
if (NT_SUCCESS(Status))
{
Status = InitSensorProperty(SENSOR_DATA_COUNT, &m_pSupportedDataFields, SensorInstance);
if (NT_SUCCESS(Status))
{
m_pSupportedDataFields->List[SENSOR_DATA_TIMESTAMP] = PKEY_SensorData_Timestamp;
m_pSupportedDataFields->List[SENSOR_DATA_ACCELERATION_X_G] = PKEY_SensorData_AccelerationX_Gs;
m_pSupportedDataFields->List[SENSOR_DATA_ACCELERATION_Y_G] = PKEY_SensorData_AccelerationY_Gs;
m_pSupportedDataFields->List[SENSOR_DATA_ACCELERATION_Z_G] = PKEY_SensorData_AccelerationZ_Gs;
}
}
// Sensor Data
if (NT_SUCCESS(Status))
{
Status = InitSensorCollection(SENSOR_DATA_COUNT, &m_pSensorData, SensorInstance);
if (NT_SUCCESS(Status))
{
FILETIME time;
m_pSensorData->List[SENSOR_DATA_TIMESTAMP].Key = PKEY_SensorData_Timestamp;
GetSystemTimePreciseAsFileTime(&time);
InitPropVariantFromFileTime(&time, &(m_pSensorData->List[SENSOR_DATA_TIMESTAMP].Value));
m_pSensorData->List[SENSOR_DATA_ACCELERATION_X_G].Key = PKEY_SensorData_AccelerationX_Gs;
InitPropVariantFromFloat(0.0f, &(m_pSensorData->List[SENSOR_DATA_ACCELERATION_X_G].Value));
m_pSensorData->List[SENSOR_DATA_ACCELERATION_Y_G].Key = PKEY_SensorData_AccelerationY_Gs;
InitPropVariantFromFloat(0.0f, &(m_pSensorData->List[SENSOR_DATA_ACCELERATION_Y_G].Value));
m_pSensorData->List[SENSOR_DATA_ACCELERATION_Z_G].Key = PKEY_SensorData_AccelerationZ_Gs;
InitPropVariantFromFloat(0.0f, &(m_pSensorData->List[SENSOR_DATA_ACCELERATION_Z_G].Value));
}
}
// Sensor Properties
if (NT_SUCCESS(Status))
{
Status = InitSensorCollection(SENSOR_PROPERTIES_COUNT, &m_pSensorProperties, SensorInstance);
if (NT_SUCCESS(Status))
{
m_Interval = DEFAULT_ACCELEROMETER_REPORT_INTERVAL;
m_pSensorProperties->List[SENSOR_PROPERTY_STATE].Key = PKEY_Sensor_State;
InitPropVariantFromUInt32(SensorState_Initializing, &(m_pSensorProperties->List[SENSOR_PROPERTY_STATE].Value));
m_pSensorProperties->List[SENSOR_PROPERTY_MIN_DATA_INTERVAL].Key = PKEY_Sensor_MinimumDataInterval_Ms;
InitPropVariantFromUInt32(ACCELEROMETER_MIN_REPORT_INTERVAL, &(m_pSensorProperties->List[SENSOR_PROPERTY_MIN_DATA_INTERVAL].Value));
m_pSensorProperties->List[SENSOR_PROPERTY_MAX_DATA_FIELD_SIZE].Key = PKEY_Sensor_MaximumDataFieldSize_Bytes;
InitPropVariantFromUInt32(CollectionsListGetMarshalledSize(m_pSensorData), &(m_pSensorProperties->List[SENSOR_PROPERTY_MAX_DATA_FIELD_SIZE].Value));
m_pSensorProperties->List[SENSOR_PROPERTY_TYPE].Key = PKEY_Sensor_Type;
InitPropVariantFromCLSID(GUID_SensorType_Accelerometer3D, &(m_pSensorProperties->List[SENSOR_PROPERTY_TYPE].Value));
}
}
// Data field properties
if (NT_SUCCESS(Status))
{
Status = InitSensorCollection(SENSOR_DATA_FIELD_PROPERTIES_COUNT, &m_pDataFieldProperties, SensorInstance);
if (NT_SUCCESS(Status))
{
m_pDataFieldProperties->List[SENSOR_DATA_FIELD_PROPERTY_RESOLUTION].Key = PKEY_SensorDataField_Resolution;
InitPropVariantFromFloat(static_cast<float>(ACCELEROMETER_CHANGE_SENSITIVITY_RESOLUTION), &(m_pDataFieldProperties->List[SENSOR_DATA_FIELD_PROPERTY_RESOLUTION].Value));
m_pDataFieldProperties->List[SENSOR_DATA_FIELD_PROPERTY_RANGE_MIN].Key = PKEY_SensorDataField_RangeMinimum;
InitPropVariantFromFloat(static_cast<float>(ACCELEROMETER_MIN_CHANGE_SENSITIVITY), &(m_pDataFieldProperties->List[SENSOR_DATA_FIELD_PROPERTY_RANGE_MIN].Value));
m_pDataFieldProperties->List[SENSOR_DATA_FIELD_PROPERTY_RANGE_MAX].Key = PKEY_SensorDataField_RangeMaximum;
InitPropVariantFromFloat(static_cast<float>(ACCELEROMETER_MAX_CHANGE_SENSITIVITY), &(m_pDataFieldProperties->List[SENSOR_DATA_FIELD_PROPERTY_RANGE_MAX].Value));
}
}
// Set default threshold
if (NT_SUCCESS(Status))
{
// note: COUNT-1 as timestamp does not have thresholds
Status = InitSensorCollection(SENSOR_DATA_COUNT-1, &m_pThresholds, SensorInstance);
if NT_SUCCESS(Status)
{
m_CachedThresholds.X = static_cast<float>(ACCELEROMETER_DEFAULT_AXIS_THRESHOLD);
m_CachedThresholds.Y = static_cast<float>(ACCELEROMETER_DEFAULT_AXIS_THRESHOLD);
m_CachedThresholds.Z = static_cast<float>(ACCELEROMETER_DEFAULT_AXIS_THRESHOLD);
m_pThresholds->List[SENSOR_DATA_ACCELERATION_X_G].Key = PKEY_SensorData_AccelerationX_Gs;
InitPropVariantFromFloat(static_cast<float>(ACCELEROMETER_DEFAULT_AXIS_THRESHOLD), &(m_pThresholds->List[SENSOR_DATA_ACCELERATION_X_G].Value));
m_pThresholds->List[SENSOR_DATA_ACCELERATION_Y_G].Key = PKEY_SensorData_AccelerationY_Gs;
InitPropVariantFromFloat(static_cast<float>(ACCELEROMETER_DEFAULT_AXIS_THRESHOLD), &(m_pThresholds->List[SENSOR_DATA_ACCELERATION_Y_G].Value));
m_pThresholds->List[SENSOR_DATA_ACCELERATION_Z_G].Key = PKEY_SensorData_AccelerationZ_Gs;
InitPropVariantFromFloat(static_cast<float>(ACCELEROMETER_DEFAULT_AXIS_THRESHOLD), &(m_pThresholds->List[SENSOR_DATA_ACCELERATION_Z_G].Value));
}
}
// Reset the FirstSample flag
if (NT_SUCCESS(Status))
{
m_FirstSample = true;
}
// Trace to this function in case of failure
else
{
TraceError("ACC %!FUNC! failed %!STATUS!", Status);
}
SENSOR_FunctionExit(Status);
return Status;
}
VOID ADXL345AccDevice::DeInit()
{
// Delete lock
if (NULL != m_I2CWaitLock)
{
WdfObjectDelete(m_I2CWaitLock);
m_I2CWaitLock = NULL;
}
// Delete sensor instance
if (NULL != m_SensorInstance)
{
WdfObjectDelete(m_SensorInstance);
}
}
// This routine reads a single sample, compares threshold and pushes sample
// to sensor class extension. This routine is protected by the caller.
NTSTATUS ADXL345AccDevice::GetData()
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
// Read the device data
BYTE DataBuffer[ADXL345_DATA_REPORT_SIZE_BYTES];
WdfWaitLockAcquire(m_I2CWaitLock, NULL);
Status = I2CSensorReadRegister(m_I2CIoTarget, ADXL345_DATA_X0, &DataBuffer[0], sizeof(DataBuffer));
WdfWaitLockRelease(m_I2CWaitLock);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! I2CSensorReadRegister from 0x%02x failed! %!STATUS!", ADXL345_DATA_X0, Status);
}
else
{
bool DataReady = false;
// Perform data conversion
SHORT xRaw = static_cast<SHORT>((DataBuffer[1] << 8) | DataBuffer[0]);
SHORT yRaw = static_cast<SHORT>((DataBuffer[3] << 8) | DataBuffer[2]);
SHORT zRaw = static_cast<SHORT>((DataBuffer[5] << 8) | DataBuffer[4]);
const float ScaleFactor = 1 / 256.0F;
VEC3D Sample = {};
Sample.X = static_cast<float>(xRaw * ScaleFactor);
Sample.Y = static_cast<float>(yRaw * ScaleFactor);
Sample.Z = static_cast<float>(zRaw * ScaleFactor);
// Set data ready if this is the first sample or we have exceeded the thresholds
if (m_FirstSample)
{
m_FirstSample = false;
DataReady = true;
}
else if ((fabsf(Sample.X - m_LastSample.X) >= m_CachedThresholds.X) ||
(fabsf(Sample.Y - m_LastSample.Y) >= m_CachedThresholds.Y) ||
(fabsf(Sample.Z - m_LastSample.Z) >= m_CachedThresholds.Z))
{
DataReady = true;
}
if (DataReady)
{
// Update values for SW thresholding and send data to class extension
m_LastSample.X = Sample.X;
m_LastSample.Y = Sample.Y;
m_LastSample.Z = Sample.Z;
// Save the data in the context
InitPropVariantFromFloat(Sample.X, &(m_pSensorData->List[SENSOR_DATA_ACCELERATION_X_G].Value));
InitPropVariantFromFloat(Sample.Y, &(m_pSensorData->List[SENSOR_DATA_ACCELERATION_Y_G].Value));
InitPropVariantFromFloat(Sample.Z, &(m_pSensorData->List[SENSOR_DATA_ACCELERATION_Z_G].Value));
FILETIME Timestamp = {};
GetSystemTimePreciseAsFileTime(&Timestamp);
InitPropVariantFromFileTime(&Timestamp, &(m_pSensorData->List[SENSOR_DATA_TIMESTAMP].Value));
SensorsCxSensorDataReady(m_SensorInstance, m_pSensorData);
}
else
{
TraceInformation("ACC %!FUNC! Data did NOT meet the threshold");
}
}
SENSOR_FunctionExit(Status);
return Status;
}
// Services a hardware interrupt.
BOOLEAN ADXL345AccDevice::OnInterruptIsr(
_In_ WDFINTERRUPT Interrupt, // Handle to a framework interrupt object
_In_ ULONG /*MessageID*/) // If the device is using message-signaled interrupts (MSIs),
// this parameter is the message number that identifies the
// device's hardware interrupt message. Otherwise, this value is 0.
{
BOOLEAN InterruptRecognized = FALSE;
PADXL345AccDevice pAccDevice = nullptr;
SENSOR_FunctionEnter();
// Get the sensor instance
ULONG SensorInstanceCount = 1;
SENSOROBJECT SensorInstance = NULL;
NTSTATUS Status = SensorsCxDeviceGetSensorList(WdfInterruptGetDevice(Interrupt), &SensorInstance, &SensorInstanceCount);
if (!NT_SUCCESS(Status) || 0 == SensorInstanceCount || NULL == SensorInstance)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! SensorsCxDeviceGetSensorList failed %!STATUS!", Status);
}
// Get the device context
else // if (NT_SUCCESS(Status))
{
pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! GetADXL345AccContextFromSensorInstance failed %!STATUS!", Status);
}
}
// Read the interrupt source
if (NT_SUCCESS(Status))
{
BYTE IntSrcBuffer = 0;
WdfWaitLockAcquire(pAccDevice->m_I2CWaitLock, NULL);
Status = I2CSensorReadRegister(pAccDevice->m_I2CIoTarget, ADXL345_INT_SOURCE, &IntSrcBuffer, sizeof(IntSrcBuffer));
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! I2CSensorReadRegister from 0x%02x failed! %!STATUS!", ADXL345_INT_SOURCE, Status);
}
else if ((IntSrcBuffer & ADXL345_INT_ACTIVITY) == 0)
{
TraceError("%!FUNC! Interrupt source not recognized");
}
else
{
InterruptRecognized = TRUE;
BOOLEAN WorkItemQueued = WdfInterruptQueueWorkItemForIsr(Interrupt);
TraceVerbose("%!FUNC! Work item %s queued for interrupt", WorkItemQueued ? "" : " already");
}
}
SENSOR_FunctionExit(Status);
return InterruptRecognized;
}
// Processes interrupt information that the driver's EvtInterruptIsr callback function has stored.
VOID ADXL345AccDevice::OnInterruptWorkItem(
_In_ WDFINTERRUPT Interrupt, // Handle to a framework object
_In_ WDFOBJECT /*AssociatedObject*/) // A handle to the framework device object that
// the driver passed to WdfInterruptCreate.
{
PADXL345AccDevice pAccDevice = nullptr;
SENSOR_FunctionEnter();
// Get the sensor instance
ULONG SensorInstanceCount = 1;
SENSOROBJECT SensorInstance = NULL;
NTSTATUS Status = SensorsCxDeviceGetSensorList(WdfInterruptGetDevice(Interrupt), &SensorInstance, &SensorInstanceCount);
if (!NT_SUCCESS(Status) || 0 == SensorInstanceCount || NULL == SensorInstance)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! SensorsCxDeviceGetSensorList failed %!STATUS!", Status);
}
// Get the device context
else //if (NT_SUCCESS(Status))
{
pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! GetADXL345AccContextFromSensorInstance failed %!STATUS!", Status);
}
}
// Read the device data
if (NT_SUCCESS(Status))
{
WdfInterruptAcquireLock(Interrupt);
Status = pAccDevice->GetData();
WdfInterruptReleaseLock(Interrupt);
if (!NT_SUCCESS(Status) && STATUS_DATA_NOT_ACCEPTED != Status)
{
TraceError("ACC %!FUNC! GetData failed %!STATUS!", Status);
}
}
SENSOR_FunctionExit(Status);
}
// Called by Sensor CLX to begin continously sampling the sensor.
NTSTATUS ADXL345AccDevice::OnStart(
_In_ SENSOROBJECT SensorInstance) // Sensor device object
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
// Get the device context
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Sensor(0x%p) parameter is invalid %!STATUS!", SensorInstance, Status);
}
else if (!pAccDevice->m_PoweredOn)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Sensor is not powered on! %!STATUS!", Status);
}
else
{
WdfWaitLockAcquire(pAccDevice->m_I2CWaitLock, NULL);
// Set accelerometer to measurement mode
REGISTER_SETTING RegisterSetting = { ADXL345_POWER_CTL, ADXL345_POWER_CTL_MEASURE };
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
if (!NT_SUCCESS(Status))
{
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
TraceError("ACC %!FUNC! I2CSensorWriteRegister to 0x%02x failed! %!STATUS!", RegisterSetting.Register, Status);
}
// Enable interrupts
else // if (NT_SUCCESS(Status))
{
RegisterSetting = { ADXL345_INT_ENABLE, ADXL345_INT_ACTIVITY };
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! I2CSensorWriteRegister to 0x%02x failed! %!STATUS!", RegisterSetting.Register, Status);
}
}
if (NT_SUCCESS(Status))
{
pAccDevice->m_FirstSample = true;
pAccDevice->m_Started = true;
InitPropVariantFromUInt32(SensorState_Active, &(pAccDevice->m_pSensorProperties->List[SENSOR_PROPERTY_STATE].Value));
}
}
SENSOR_FunctionExit(Status);
return Status;
}
// Called by Sensor CLX to stop continously sampling the sensor.
NTSTATUS ADXL345AccDevice::OnStop(
_In_ SENSOROBJECT SensorInstance) // Sensor device object
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
// Get the device context
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Sensor(0x%p) parameter is invalid %!STATUS!", SensorInstance, Status);
}
else
{
pAccDevice->m_Started = false;
// Disable interrupts
REGISTER_SETTING RegisterSetting = { ADXL345_INT_ENABLE, 0 };
WdfWaitLockAcquire(pAccDevice->m_I2CWaitLock, NULL);
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! I2CSensorWriteRegister to 0x%02x failed! %!STATUS!", RegisterSetting.Register, Status);
}
// Clear any stale interrupts
else
{
RegisterSetting = { ADXL345_INT_SOURCE, 0 };
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! I2CSensorReadRegister from 0x%02x failed! %!STATUS!", RegisterSetting.Register, Status);
}
}
// Set accelerometer to standby
RegisterSetting = { ADXL345_POWER_CTL, ADXL345_POWER_CTL_STANDBY };
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! I2CSensorWriteRegister to 0x%02x failed! %!STATUS!", RegisterSetting.Register, Status);
}
else
{
InitPropVariantFromUInt32(SensorState_Idle, &(pAccDevice->m_pSensorProperties->List[SENSOR_PROPERTY_STATE].Value));
}
}
SENSOR_FunctionExit(Status);
return Status;
}
// Called by Sensor CLX to get supported data fields. The typical usage is to call
// this function once with buffer pointer as NULL to acquire the required size
// for the buffer, allocate buffer, then call the function again to retrieve
// sensor information.
NTSTATUS ADXL345AccDevice::OnGetSupportedDataFields(
_In_ SENSOROBJECT SensorInstance, // Sensor device object
_Inout_opt_ PSENSOR_PROPERTY_LIST pFields, // Pointer to a list of supported properties
_Out_ PULONG pSize) // Number of bytes for the list of supported properties
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
if (nullptr == pSize)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! pSize: Invalid parameter! %!STATUS!", Status);
}
else
{
*pSize = 0;
// Get the device context
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Invalid parameters! %!STATUS!", Status);
}
else if (nullptr == pFields)
{
// Just return size
*pSize = pAccDevice->m_pSupportedDataFields->AllocatedSizeInBytes;
}
else
{
if (pFields->AllocatedSizeInBytes < pAccDevice->m_pSupportedDataFields->AllocatedSizeInBytes)
{
Status = STATUS_INSUFFICIENT_RESOURCES;
TraceError("ACC %!FUNC! Buffer is too small. Failed %!STATUS!", Status);
}
else
{
// Fill out data
Status = PropertiesListCopy(pFields, pAccDevice->m_pSupportedDataFields);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! PropertiesListCopy failed %!STATUS!", Status);
}
else
{
*pSize = pAccDevice->m_pSupportedDataFields->AllocatedSizeInBytes;
}
}
}
}
SENSOR_FunctionExit(Status);
return Status;
}
// Called by Sensor CLX to get sensor properties. The typical usage is to call
// this function once with buffer pointer as NULL to acquire the required size
// for the buffer, allocate buffer, then call the function again to retrieve
// sensor information.
NTSTATUS ADXL345AccDevice::OnGetProperties(
_In_ SENSOROBJECT SensorInstance, // Sensor device object
_Inout_opt_ PSENSOR_COLLECTION_LIST pProperties, // Pointer to a list of sensor properties
_Out_ PULONG pSize) // Number of bytes for the list of sensor properties
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
if (nullptr == pSize)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! pSize: Invalid parameter! %!STATUS!", Status);
}
else
{
*pSize = 0;
// Get the device context
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Invalid parameters! %!STATUS!", Status);
}
else if (nullptr == pProperties)
{
// Just return size
*pSize = CollectionsListGetMarshalledSize(pAccDevice->m_pSensorProperties);
}
else
{
if (pProperties->AllocatedSizeInBytes < CollectionsListGetMarshalledSize(pAccDevice->m_pSensorProperties))
{
Status = STATUS_INSUFFICIENT_RESOURCES;
TraceError("ACC %!FUNC! Buffer is too small. Failed %!STATUS!", Status);
}
else
{
// Fill out all data
Status = CollectionsListCopyAndMarshall(pProperties, pAccDevice->m_pSensorProperties);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! CollectionsListCopyAndMarshall failed %!STATUS!", Status);
}
else
{
*pSize = CollectionsListGetMarshalledSize(pAccDevice->m_pSensorProperties);
}
}
}
}
SENSOR_FunctionExit(Status);
return Status;
}
// Called by Sensor CLX to get data field properties. The typical usage is to call
// this function once with buffer pointer as NULL to acquire the required size
// for the buffer, allocate buffer, then call the function again to retrieve
// sensor information.
NTSTATUS ADXL345AccDevice::OnGetDataFieldProperties(
_In_ SENSOROBJECT SensorInstance, // Sensor device object
_In_ const PROPERTYKEY *pDataField, // Pointer to the propertykey of requested property
_Inout_opt_ PSENSOR_COLLECTION_LIST pProperties, // Pointer to a list of sensor properties
_Out_ PULONG pSize) // Number of bytes for the list of sensor properties
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
if (nullptr == pSize)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! pSize: Invalid parameter! %!STATUS!", Status);
}
else
{
*pSize = 0;
// Get the device context
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice || nullptr == pDataField)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Invalid parameters! %!STATUS!", Status);
}
else if (!IsEqualPropertyKey(*pDataField, pAccDevice->m_pSupportedDataFields->List[SENSOR_DATA_ACCELERATION_X_G]) &&
!IsEqualPropertyKey(*pDataField, pAccDevice->m_pSupportedDataFields->List[SENSOR_DATA_ACCELERATION_Y_G]) &&
!IsEqualPropertyKey(*pDataField, pAccDevice->m_pSupportedDataFields->List[SENSOR_DATA_ACCELERATION_Z_G]))
{
Status = STATUS_NOT_SUPPORTED;
TraceError("ACC %!FUNC! ADXL345 does NOT have properties for this data field. Failed %!STATUS!", Status);
}
else if (nullptr == pProperties)
{
// Just return size
*pSize = CollectionsListGetMarshalledSize(pAccDevice->m_pDataFieldProperties);
}
else
{
if (pProperties->AllocatedSizeInBytes < CollectionsListGetMarshalledSize(pAccDevice->m_pDataFieldProperties))
{
Status = STATUS_INSUFFICIENT_RESOURCES;
TraceError("ACC %!FUNC! Buffer is too small. Failed %!STATUS!", Status);
}
else
{
// Fill out all data
Status = CollectionsListCopyAndMarshall(pProperties, pAccDevice->m_pDataFieldProperties);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! CollectionsListCopyAndMarshall failed %!STATUS!", Status);
}
else
{
*pSize = CollectionsListGetMarshalledSize(pAccDevice->m_pDataFieldProperties);
}
}
}
}
SENSOR_FunctionExit(Status);
return Status;
}
// Called by Sensor CLX to get sampling rate of the sensor.
NTSTATUS ADXL345AccDevice::OnGetDataInterval(
_In_ SENSOROBJECT SensorInstance, // Sensor device object
_Out_ PULONG pDataRateMs) // Sampling rate in milliseconds
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Invalid parameters! %!STATUS!", Status);
}
else if (nullptr == pDataRateMs)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Invalid parameters! %!STATUS!", Status);
}
else
{
*pDataRateMs = pAccDevice->m_Interval;
TraceInformation("%!FUNC! giving data rate %lu", *pDataRateMs);
}
SENSOR_FunctionExit(Status);
return Status;
}
// Called by Sensor CLX to set sampling rate of the sensor.
NTSTATUS ADXL345AccDevice::OnSetDataInterval(
_In_ SENSOROBJECT SensorInstance, // Sensor device object
_In_ ULONG DataRateMs) // Sampling rate in milliseconds
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
// Get the device context
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice || DataRateMs < ACCELEROMETER_MIN_REPORT_INTERVAL)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Invalid parameters! %!STATUS!", Status);
}
else
{
pAccDevice->m_Interval = DataRateMs;
if (pAccDevice->m_Started)
{
pAccDevice->m_Started = false;
WdfWaitLockAcquire(pAccDevice->m_I2CWaitLock, NULL);
// Disable Interrupts
REGISTER_SETTING RegisterSetting = { ADXL345_INT_ENABLE, 0 };
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
if (!NT_SUCCESS(Status))
{
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
TraceError("ACC %!FUNC! Failed to disable interrupts. %!STATUS!", Status);
}
// Update data rate in HW
else // (if NT_SUCCESS(Status))
{
RegisterSetting = { ADXL345_BW_RATE, _GetDataRateFromReportInterval(DataRateMs).RateCode };
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
if (!NT_SUCCESS(Status))
{
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
TraceError("ACC %!FUNC! I2CSensorWriteRegister to 0x%02x failed! %!STATUS!", RegisterSetting.Register, Status);
}
}
// Re-enable Interrupts
if (NT_SUCCESS(Status))
{
pAccDevice->m_Started = true;
pAccDevice->m_FirstSample = true;
RegisterSetting = { ADXL345_INT_ENABLE, ADXL345_INT_ACTIVITY };
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! Failed to re-enable interrupts. %!STATUS!", Status);
}
}
}
}
SENSOR_FunctionExit(Status);
return Status;
}
// Called by Sensor CLX to get data thresholds. The typical usage is to call
// this function once with buffer pointer as NULL to acquire the required size
// for the buffer, allocate buffer, then call the function again to retrieve
// sensor information.
NTSTATUS ADXL345AccDevice::OnGetDataThresholds(
_In_ SENSOROBJECT SensorInstance, // Sensor Device Object
_Inout_opt_ PSENSOR_COLLECTION_LIST pThresholds, // Pointer to a list of sensor thresholds
_Out_ PULONG pSize) // Number of bytes for the list of sensor thresholds
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
if (nullptr == pSize)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! pSize: Invalid parameter! %!STATUS!", Status);
}
else
{
*pSize = 0;
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Invalid parameters! %!STATUS!", Status);
}
else if (nullptr == pThresholds)
{
// Just return size
*pSize = CollectionsListGetMarshalledSize(pAccDevice->m_pThresholds);
}
else
{
if (pThresholds->AllocatedSizeInBytes < CollectionsListGetMarshalledSize(pAccDevice->m_pThresholds))
{
Status = STATUS_INSUFFICIENT_RESOURCES;
TraceError("ACC %!FUNC! Buffer is too small. Failed %!STATUS!", Status);
}
else
{
// Fill out all data
Status = CollectionsListCopyAndMarshall(pThresholds, pAccDevice->m_pThresholds);
if (!NT_SUCCESS(Status))
{
TraceError("ACC %!FUNC! CollectionsListCopyAndMarshall failed %!STATUS!", Status);
}
else
{
*pSize = CollectionsListGetMarshalledSize(pAccDevice->m_pThresholds);
}
}
}
}
SENSOR_FunctionExit(Status);
return Status;
}
// Called by Sensor CLX to set data thresholds.
NTSTATUS ADXL345AccDevice::OnSetDataThresholds(
_In_ SENSOROBJECT SensorInstance, // Sensor Device Object
_In_ PSENSOR_COLLECTION_LIST pThresholds) // Pointer to a list of sensor thresholds
{
NTSTATUS Status = STATUS_SUCCESS;
SENSOR_FunctionEnter();
PADXL345AccDevice pAccDevice = GetADXL345AccContextFromSensorInstance(SensorInstance);
if (nullptr == pAccDevice)
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Sensor(0x%p) parameter is invalid %!STATUS!", SensorInstance, Status);
}
else // if (NT_SUCCESS(Status))
{
for (ULONG i = 0; i < pThresholds->Count; i++)
{
Status = PropKeyFindKeySetPropVariant(pAccDevice->m_pThresholds, &(pThresholds->List[i].Key), true, &(pThresholds->List[i].Value));
if (!NT_SUCCESS(Status))
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! Adxl345 does NOT have threshold for this data field. Failed %!STATUS!", Status);
break;
}
}
}
if (NT_SUCCESS(Status))
{
Status = PropKeyFindKeyGetFloat(pAccDevice->m_pThresholds, &PKEY_SensorData_AccelerationX_Gs, &(pAccDevice->m_CachedThresholds.X));
if (!NT_SUCCESS(Status))
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! PropKeyFindKeyGetFloat for X failed! %!STATUS!", Status);
}
}
if (NT_SUCCESS(Status))
{
Status = PropKeyFindKeyGetFloat(pAccDevice->m_pThresholds, &PKEY_SensorData_AccelerationY_Gs, &(pAccDevice->m_CachedThresholds.Y));
if (!NT_SUCCESS(Status))
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! PropKeyFindKeyGetFloat for Y failed! %!STATUS!", Status);
}
}
if (NT_SUCCESS(Status))
{
Status = PropKeyFindKeyGetFloat(pAccDevice->m_pThresholds, &PKEY_SensorData_AccelerationZ_Gs, &(pAccDevice->m_CachedThresholds.Z));
if (!NT_SUCCESS(Status))
{
Status = STATUS_INVALID_PARAMETER;
TraceError("ACC %!FUNC! PropKeyFindKeyGetFloat for Z failed! %!STATUS!", Status);
}
}
if (NT_SUCCESS(Status))
{
// The accelerometer only supports a single value, so pick the smallest, i.e. most sensitive.
FLOAT MinThreshold = min(pAccDevice->m_CachedThresholds.X, min(pAccDevice->m_CachedThresholds.Y, pAccDevice->m_CachedThresholds.Z));
MinThreshold = max(MinThreshold, static_cast<FLOAT>(ACCELEROMETER_MIN_CHANGE_SENSITIVITY));
// Disable Interrupts
REGISTER_SETTING RegisterSetting = { ADXL345_INT_ENABLE, 0 };
WdfWaitLockAcquire(pAccDevice->m_I2CWaitLock, NULL);
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
if (!NT_SUCCESS(Status))
{
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
TraceError("ACC %!FUNC! Failed to disable interrupts. %!STATUS!", Status);
}
// The threshold can only be set in increments, so round down to a more sensitive setting for hardware
else //if (NT_SUCCESS(Status))
{
BYTE NewThreshold = static_cast<BYTE>(MinThreshold / ACCELEROMETER_CHANGE_SENSITIVITY_RESOLUTION);
RegisterSetting = { ADXL345_THRESH_ACT, NewThreshold };
Status = I2CSensorWriteRegister(pAccDevice->m_I2CIoTarget, RegisterSetting.Register, &RegisterSetting.Value, sizeof(RegisterSetting.Value));
if (!NT_SUCCESS(Status))
{
WdfWaitLockRelease(pAccDevice->m_I2CWaitLock);
TraceError("ACC %!FUNC! I2CSensorWriteRegister to 0x%02x failed! %!STATUS!", RegisterSetting.Register, Status);
}