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/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "sensors-impl/Sensors.h"
#include <aidl/android/hardware/common/fmq/SynchronizedReadWrite.h>
using ::aidl::android::hardware::common::fmq::MQDescriptor;
using ::aidl::android::hardware::common::fmq::SynchronizedReadWrite;
using ::aidl::android::hardware::sensors::Event;
using ::aidl::android::hardware::sensors::ISensors;
using ::aidl::android::hardware::sensors::ISensorsCallback;
using ::aidl::android::hardware::sensors::SensorInfo;
using ::ndk::ScopedAStatus;
namespace aidl {
namespace android {
namespace hardware {
namespace sensors {
ScopedAStatus Sensors::activate(int32_t in_sensorHandle, bool in_enabled) {
auto sensor = mSensors.find(in_sensorHandle);
if (sensor != mSensors.end()) {
sensor->second->activate(in_enabled);
return ScopedAStatus::ok();
}
return ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
ScopedAStatus Sensors::batch(int32_t in_sensorHandle, int64_t in_samplingPeriodNs,
int64_t /* in_maxReportLatencyNs */) {
auto sensor = mSensors.find(in_sensorHandle);
if (sensor != mSensors.end()) {
sensor->second->batch(in_samplingPeriodNs);
return ScopedAStatus::ok();
}
return ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
ScopedAStatus Sensors::configDirectReport(int32_t /* in_sensorHandle */,
int32_t /* in_channelHandle */,
ISensors::RateLevel /* in_rate */,
int32_t* _aidl_return) {
*_aidl_return = EX_UNSUPPORTED_OPERATION;
return ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
ScopedAStatus Sensors::flush(int32_t in_sensorHandle) {
auto sensor = mSensors.find(in_sensorHandle);
if (sensor != mSensors.end()) {
return sensor->second->flush();
}
return ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
ScopedAStatus Sensors::getSensorsList(std::vector<SensorInfo>* _aidl_return) {
for (const auto& sensor : mSensors) {
_aidl_return->push_back(sensor.second->getSensorInfo());
}
return ScopedAStatus::ok();
}
ScopedAStatus Sensors::initialize(
const MQDescriptor<Event, SynchronizedReadWrite>& in_eventQueueDescriptor,
const MQDescriptor<int32_t, SynchronizedReadWrite>& in_wakeLockDescriptor,
const std::shared_ptr<::aidl::android::hardware::sensors::ISensorsCallback>&
in_sensorsCallback) {
ScopedAStatus result = ScopedAStatus::ok();
mEventQueue = std::make_unique<AidlMessageQueue<Event, SynchronizedReadWrite>>(
in_eventQueueDescriptor, true /* resetPointers */);
// Ensure that all sensors are disabled.
for (auto sensor : mSensors) {
sensor.second->activate(false);
}
// Stop the Wake Lock thread if it is currently running
if (mReadWakeLockQueueRun.load()) {
mReadWakeLockQueueRun = false;
mWakeLockThread.join();
}
// Save a reference to the callback
mCallback = in_sensorsCallback;
// Ensure that any existing EventFlag is properly deleted
deleteEventFlag();
// Create the EventFlag that is used to signal to the framework that sensor events have been
// written to the Event FMQ
if (EventFlag::createEventFlag(mEventQueue->getEventFlagWord(), &mEventQueueFlag) != OK) {
result = ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
// Create the Wake Lock FMQ that is used by the framework to communicate whenever WAKE_UP
// events have been successfully read and handled by the framework.
mWakeLockQueue = std::make_unique<AidlMessageQueue<int32_t, SynchronizedReadWrite>>(
in_wakeLockDescriptor, true /* resetPointers */);
if (!mCallback || !mEventQueue || !mWakeLockQueue || mEventQueueFlag == nullptr) {
result = ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
// Start the thread to read events from the Wake Lock FMQ
mReadWakeLockQueueRun = true;
mWakeLockThread = std::thread(startReadWakeLockThread, this);
return result;
}
ScopedAStatus Sensors::injectSensorData(const Event& in_event) {
auto sensor = mSensors.find(in_event.sensorHandle);
if (sensor != mSensors.end()) {
return sensor->second->injectEvent(in_event);
}
return ScopedAStatus::fromServiceSpecificError(static_cast<int32_t>(ERROR_BAD_VALUE));
}
ScopedAStatus Sensors::registerDirectChannel(const ISensors::SharedMemInfo& /* in_mem */,
int32_t* _aidl_return) {
*_aidl_return = EX_UNSUPPORTED_OPERATION;
return ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
ScopedAStatus Sensors::setOperationMode(OperationMode in_mode) {
for (auto sensor : mSensors) {
sensor.second->setOperationMode(in_mode);
}
return ScopedAStatus::ok();
}
ScopedAStatus Sensors::unregisterDirectChannel(int32_t /* in_channelHandle */) {
return ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
} // namespace sensors
} // namespace hardware
} // namespace android
} // namespace aidl
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