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754 lines
30 KiB
754 lines
30 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "HalProxy.h"
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#include <android/hardware/sensors/2.0/types.h>
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#include <android-base/file.h>
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#include "hardware_legacy/power.h"
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#include <dlfcn.h>
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#include <cinttypes>
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#include <cmath>
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#include <fstream>
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#include <functional>
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#include <thread>
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namespace android {
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namespace hardware {
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namespace sensors {
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namespace V2_1 {
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namespace implementation {
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using ::android::hardware::sensors::V1_0::Result;
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using ::android::hardware::sensors::V2_0::EventQueueFlagBits;
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using ::android::hardware::sensors::V2_0::WakeLockQueueFlagBits;
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using ::android::hardware::sensors::V2_0::implementation::getTimeNow;
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using ::android::hardware::sensors::V2_0::implementation::kWakelockTimeoutNs;
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typedef V2_0::implementation::ISensorsSubHal*(SensorsHalGetSubHalFunc)(uint32_t*);
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typedef V2_1::implementation::ISensorsSubHal*(SensorsHalGetSubHalV2_1Func)(uint32_t*);
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static constexpr int32_t kBitsAfterSubHalIndex = 24;
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/**
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* Set the subhal index as first byte of sensor handle and return this modified version.
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*
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* @param sensorHandle The sensor handle to modify.
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* @param subHalIndex The index in the hal proxy of the sub hal this sensor belongs to.
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*
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* @return The modified sensor handle.
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*/
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int32_t setSubHalIndex(int32_t sensorHandle, size_t subHalIndex) {
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return sensorHandle | (static_cast<int32_t>(subHalIndex) << kBitsAfterSubHalIndex);
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}
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/**
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* Extract the subHalIndex from sensorHandle.
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*
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* @param sensorHandle The sensorHandle to extract from.
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*
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* @return The subhal index.
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*/
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size_t extractSubHalIndex(int32_t sensorHandle) {
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return static_cast<size_t>(sensorHandle >> kBitsAfterSubHalIndex);
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}
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/**
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* Convert nanoseconds to milliseconds.
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*
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* @param nanos The nanoseconds input.
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*
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* @return The milliseconds count.
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*/
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int64_t msFromNs(int64_t nanos) {
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constexpr int64_t nanosecondsInAMillsecond = 1000000;
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return nanos / nanosecondsInAMillsecond;
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}
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HalProxy::HalProxy() {
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const char* kMultiHalConfigFile = "/vendor/etc/sensors/hals.conf";
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initializeSubHalListFromConfigFile(kMultiHalConfigFile);
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init();
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}
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HalProxy::HalProxy(std::vector<ISensorsSubHalV2_0*>& subHalList) {
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for (ISensorsSubHalV2_0* subHal : subHalList) {
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mSubHalList.push_back(std::make_unique<SubHalWrapperV2_0>(subHal));
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}
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init();
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}
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HalProxy::HalProxy(std::vector<ISensorsSubHalV2_0*>& subHalList,
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std::vector<ISensorsSubHalV2_1*>& subHalListV2_1) {
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for (ISensorsSubHalV2_0* subHal : subHalList) {
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mSubHalList.push_back(std::make_unique<SubHalWrapperV2_0>(subHal));
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}
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for (ISensorsSubHalV2_1* subHal : subHalListV2_1) {
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mSubHalList.push_back(std::make_unique<SubHalWrapperV2_1>(subHal));
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}
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init();
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}
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HalProxy::~HalProxy() {
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stopThreads();
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}
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Return<void> HalProxy::getSensorsList_2_1(ISensorsV2_1::getSensorsList_2_1_cb _hidl_cb) {
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std::vector<V2_1::SensorInfo> sensors;
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for (const auto& iter : mSensors) {
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sensors.push_back(iter.second);
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}
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_hidl_cb(sensors);
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return Void();
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}
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Return<void> HalProxy::getSensorsList(ISensorsV2_0::getSensorsList_cb _hidl_cb) {
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std::vector<V1_0::SensorInfo> sensors;
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for (const auto& iter : mSensors) {
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sensors.push_back(convertToOldSensorInfo(iter.second));
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}
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_hidl_cb(sensors);
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return Void();
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}
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Return<Result> HalProxy::setOperationMode(OperationMode mode) {
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Result result = Result::OK;
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size_t subHalIndex;
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for (subHalIndex = 0; subHalIndex < mSubHalList.size(); subHalIndex++) {
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result = mSubHalList[subHalIndex]->setOperationMode(mode);
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if (result != Result::OK) {
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ALOGE("setOperationMode failed for SubHal: %s",
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mSubHalList[subHalIndex]->getName().c_str());
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break;
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}
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}
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if (result != Result::OK) {
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// Reset the subhal operation modes that have been flipped
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for (size_t i = 0; i < subHalIndex; i++) {
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mSubHalList[i]->setOperationMode(mCurrentOperationMode);
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}
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} else {
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mCurrentOperationMode = mode;
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}
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return result;
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}
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Return<Result> HalProxy::activate(int32_t sensorHandle, bool enabled) {
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if (!isSubHalIndexValid(sensorHandle)) {
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return Result::BAD_VALUE;
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}
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return getSubHalForSensorHandle(sensorHandle)
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->activate(clearSubHalIndex(sensorHandle), enabled);
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}
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Return<Result> HalProxy::initialize_2_1(
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const ::android::hardware::MQDescriptorSync<V2_1::Event>& eventQueueDescriptor,
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const ::android::hardware::MQDescriptorSync<uint32_t>& wakeLockDescriptor,
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const sp<V2_1::ISensorsCallback>& sensorsCallback) {
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sp<ISensorsCallbackWrapperBase> dynamicCallback =
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new ISensorsCallbackWrapperV2_1(sensorsCallback);
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// Create the Event FMQ from the eventQueueDescriptor. Reset the read/write positions.
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auto eventQueue =
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std::make_unique<EventMessageQueueV2_1>(eventQueueDescriptor, true /* resetPointers */);
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std::unique_ptr<EventMessageQueueWrapperBase> queue =
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std::make_unique<EventMessageQueueWrapperV2_1>(eventQueue);
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return initializeCommon(queue, wakeLockDescriptor, dynamicCallback);
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}
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Return<Result> HalProxy::initialize(
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const ::android::hardware::MQDescriptorSync<V1_0::Event>& eventQueueDescriptor,
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const ::android::hardware::MQDescriptorSync<uint32_t>& wakeLockDescriptor,
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const sp<V2_0::ISensorsCallback>& sensorsCallback) {
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sp<ISensorsCallbackWrapperBase> dynamicCallback =
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new ISensorsCallbackWrapperV2_0(sensorsCallback);
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// Create the Event FMQ from the eventQueueDescriptor. Reset the read/write positions.
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auto eventQueue =
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std::make_unique<EventMessageQueueV2_0>(eventQueueDescriptor, true /* resetPointers */);
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std::unique_ptr<EventMessageQueueWrapperBase> queue =
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std::make_unique<EventMessageQueueWrapperV1_0>(eventQueue);
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return initializeCommon(queue, wakeLockDescriptor, dynamicCallback);
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}
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Return<Result> HalProxy::initializeCommon(
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std::unique_ptr<EventMessageQueueWrapperBase>& eventQueue,
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const ::android::hardware::MQDescriptorSync<uint32_t>& wakeLockDescriptor,
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const sp<ISensorsCallbackWrapperBase>& sensorsCallback) {
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Result result = Result::OK;
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stopThreads();
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resetSharedWakelock();
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// So that the pending write events queue can be cleared safely and when we start threads
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// again we do not get new events until after initialize resets the subhals.
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disableAllSensors();
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// Clears the queue if any events were pending write before.
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mPendingWriteEventsQueue = std::queue<std::pair<std::vector<V2_1::Event>, size_t>>();
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mSizePendingWriteEventsQueue = 0;
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// Clears previously connected dynamic sensors
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mDynamicSensors.clear();
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mDynamicSensorsCallback = sensorsCallback;
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// Create the Event FMQ from the eventQueueDescriptor. Reset the read/write positions.
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mEventQueue = std::move(eventQueue);
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// Create the Wake Lock FMQ that is used by the framework to communicate whenever WAKE_UP
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// events have been successfully read and handled by the framework.
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mWakeLockQueue =
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std::make_unique<WakeLockMessageQueue>(wakeLockDescriptor, true /* resetPointers */);
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if (mEventQueueFlag != nullptr) {
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EventFlag::deleteEventFlag(&mEventQueueFlag);
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}
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if (mWakelockQueueFlag != nullptr) {
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EventFlag::deleteEventFlag(&mWakelockQueueFlag);
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}
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if (EventFlag::createEventFlag(mEventQueue->getEventFlagWord(), &mEventQueueFlag) != OK) {
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result = Result::BAD_VALUE;
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}
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if (EventFlag::createEventFlag(mWakeLockQueue->getEventFlagWord(), &mWakelockQueueFlag) != OK) {
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result = Result::BAD_VALUE;
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}
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if (!mDynamicSensorsCallback || !mEventQueue || !mWakeLockQueue || mEventQueueFlag == nullptr) {
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result = Result::BAD_VALUE;
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}
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mThreadsRun.store(true);
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mPendingWritesThread = std::thread(startPendingWritesThread, this);
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mWakelockThread = std::thread(startWakelockThread, this);
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for (size_t i = 0; i < mSubHalList.size(); i++) {
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Result currRes = mSubHalList[i]->initialize(this, this, i);
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if (currRes != Result::OK) {
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result = currRes;
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ALOGE("Subhal '%s' failed to initialize.", mSubHalList[i]->getName().c_str());
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break;
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}
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}
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mCurrentOperationMode = OperationMode::NORMAL;
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return result;
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}
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Return<Result> HalProxy::batch(int32_t sensorHandle, int64_t samplingPeriodNs,
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int64_t maxReportLatencyNs) {
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if (!isSubHalIndexValid(sensorHandle)) {
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return Result::BAD_VALUE;
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}
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return getSubHalForSensorHandle(sensorHandle)
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->batch(clearSubHalIndex(sensorHandle), samplingPeriodNs, maxReportLatencyNs);
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}
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Return<Result> HalProxy::flush(int32_t sensorHandle) {
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if (!isSubHalIndexValid(sensorHandle)) {
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return Result::BAD_VALUE;
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}
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return getSubHalForSensorHandle(sensorHandle)->flush(clearSubHalIndex(sensorHandle));
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}
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Return<Result> HalProxy::injectSensorData_2_1(const V2_1::Event& event) {
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return injectSensorData(convertToOldEvent(event));
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}
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Return<Result> HalProxy::injectSensorData(const V1_0::Event& event) {
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Result result = Result::OK;
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if (mCurrentOperationMode == OperationMode::NORMAL &&
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event.sensorType != V1_0::SensorType::ADDITIONAL_INFO) {
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ALOGE("An event with type != ADDITIONAL_INFO passed to injectSensorData while operation"
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" mode was NORMAL.");
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result = Result::BAD_VALUE;
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}
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if (result == Result::OK) {
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V1_0::Event subHalEvent = event;
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if (!isSubHalIndexValid(event.sensorHandle)) {
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return Result::BAD_VALUE;
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}
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subHalEvent.sensorHandle = clearSubHalIndex(event.sensorHandle);
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result = getSubHalForSensorHandle(event.sensorHandle)
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->injectSensorData(convertToNewEvent(subHalEvent));
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}
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return result;
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}
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Return<void> HalProxy::registerDirectChannel(const SharedMemInfo& mem,
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ISensorsV2_0::registerDirectChannel_cb _hidl_cb) {
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if (mDirectChannelSubHal == nullptr) {
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_hidl_cb(Result::INVALID_OPERATION, -1 /* channelHandle */);
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} else {
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mDirectChannelSubHal->registerDirectChannel(mem, _hidl_cb);
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}
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return Return<void>();
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}
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Return<Result> HalProxy::unregisterDirectChannel(int32_t channelHandle) {
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Result result;
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if (mDirectChannelSubHal == nullptr) {
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result = Result::INVALID_OPERATION;
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} else {
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result = mDirectChannelSubHal->unregisterDirectChannel(channelHandle);
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}
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return result;
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}
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Return<void> HalProxy::configDirectReport(int32_t sensorHandle, int32_t channelHandle,
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RateLevel rate,
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ISensorsV2_0::configDirectReport_cb _hidl_cb) {
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if (mDirectChannelSubHal == nullptr) {
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_hidl_cb(Result::INVALID_OPERATION, -1 /* reportToken */);
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} else if (sensorHandle == -1 && rate != RateLevel::STOP) {
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_hidl_cb(Result::BAD_VALUE, -1 /* reportToken */);
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} else {
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// -1 denotes all sensors should be disabled
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if (sensorHandle != -1) {
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sensorHandle = clearSubHalIndex(sensorHandle);
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}
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mDirectChannelSubHal->configDirectReport(sensorHandle, channelHandle, rate, _hidl_cb);
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}
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return Return<void>();
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}
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Return<void> HalProxy::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& /*args*/) {
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if (fd.getNativeHandle() == nullptr || fd->numFds < 1) {
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ALOGE("%s: missing fd for writing", __FUNCTION__);
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return Void();
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}
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android::base::borrowed_fd writeFd = dup(fd->data[0]);
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std::ostringstream stream;
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stream << "===HalProxy===" << std::endl;
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stream << "Internal values:" << std::endl;
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stream << " Threads are running: " << (mThreadsRun.load() ? "true" : "false") << std::endl;
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int64_t now = getTimeNow();
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stream << " Wakelock timeout start time: " << msFromNs(now - mWakelockTimeoutStartTime)
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<< " ms ago" << std::endl;
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stream << " Wakelock timeout reset time: " << msFromNs(now - mWakelockTimeoutResetTime)
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<< " ms ago" << std::endl;
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// TODO(b/142969448): Add logging for history of wakelock acquisition per subhal.
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stream << " Wakelock ref count: " << mWakelockRefCount << std::endl;
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stream << " # of events on pending write writes queue: " << mSizePendingWriteEventsQueue
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<< std::endl;
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stream << " Most events seen on pending write events queue: "
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<< mMostEventsObservedPendingWriteEventsQueue << std::endl;
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if (!mPendingWriteEventsQueue.empty()) {
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stream << " Size of events list on front of pending writes queue: "
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<< mPendingWriteEventsQueue.front().first.size() << std::endl;
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}
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stream << " # of non-dynamic sensors across all subhals: " << mSensors.size() << std::endl;
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stream << " # of dynamic sensors across all subhals: " << mDynamicSensors.size() << std::endl;
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stream << "SubHals (" << mSubHalList.size() << "):" << std::endl;
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for (auto& subHal : mSubHalList) {
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stream << " Name: " << subHal->getName() << std::endl;
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stream << " Debug dump: " << std::endl;
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android::base::WriteStringToFd(stream.str(), writeFd);
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subHal->debug(fd, {});
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stream.str("");
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stream << std::endl;
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}
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android::base::WriteStringToFd(stream.str(), writeFd);
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return Return<void>();
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}
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Return<void> HalProxy::onDynamicSensorsConnected(const hidl_vec<SensorInfo>& dynamicSensorsAdded,
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int32_t subHalIndex) {
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std::vector<SensorInfo> sensors;
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{
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std::lock_guard<std::mutex> lock(mDynamicSensorsMutex);
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for (SensorInfo sensor : dynamicSensorsAdded) {
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if (!subHalIndexIsClear(sensor.sensorHandle)) {
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ALOGE("Dynamic sensor added %s had sensorHandle with first byte not 0.",
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sensor.name.c_str());
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} else {
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sensor.sensorHandle = setSubHalIndex(sensor.sensorHandle, subHalIndex);
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mDynamicSensors[sensor.sensorHandle] = sensor;
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sensors.push_back(sensor);
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}
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}
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}
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mDynamicSensorsCallback->onDynamicSensorsConnected(sensors);
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return Return<void>();
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}
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Return<void> HalProxy::onDynamicSensorsDisconnected(
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const hidl_vec<int32_t>& dynamicSensorHandlesRemoved, int32_t subHalIndex) {
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// TODO(b/143302327): Block this call until all pending events are flushed from queue
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std::vector<int32_t> sensorHandles;
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{
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std::lock_guard<std::mutex> lock(mDynamicSensorsMutex);
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for (int32_t sensorHandle : dynamicSensorHandlesRemoved) {
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if (!subHalIndexIsClear(sensorHandle)) {
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ALOGE("Dynamic sensorHandle removed had first byte not 0.");
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} else {
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sensorHandle = setSubHalIndex(sensorHandle, subHalIndex);
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if (mDynamicSensors.find(sensorHandle) != mDynamicSensors.end()) {
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mDynamicSensors.erase(sensorHandle);
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sensorHandles.push_back(sensorHandle);
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}
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}
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}
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}
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mDynamicSensorsCallback->onDynamicSensorsDisconnected(sensorHandles);
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return Return<void>();
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}
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void HalProxy::initializeSubHalListFromConfigFile(const char* configFileName) {
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std::ifstream subHalConfigStream(configFileName);
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if (!subHalConfigStream) {
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ALOGE("Failed to load subHal config file: %s", configFileName);
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} else {
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std::string subHalLibraryFile;
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while (subHalConfigStream >> subHalLibraryFile) {
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void* handle = getHandleForSubHalSharedObject(subHalLibraryFile);
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if (handle == nullptr) {
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ALOGE("dlopen failed for library: %s", subHalLibraryFile.c_str());
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} else {
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SensorsHalGetSubHalFunc* sensorsHalGetSubHalPtr =
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(SensorsHalGetSubHalFunc*)dlsym(handle, "sensorsHalGetSubHal");
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if (sensorsHalGetSubHalPtr != nullptr) {
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std::function<SensorsHalGetSubHalFunc> sensorsHalGetSubHal =
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*sensorsHalGetSubHalPtr;
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uint32_t version;
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ISensorsSubHalV2_0* subHal = sensorsHalGetSubHal(&version);
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if (version != SUB_HAL_2_0_VERSION) {
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ALOGE("SubHal version was not 2.0 for library: %s",
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subHalLibraryFile.c_str());
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} else {
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ALOGV("Loaded SubHal from library: %s", subHalLibraryFile.c_str());
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mSubHalList.push_back(std::make_unique<SubHalWrapperV2_0>(subHal));
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}
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} else {
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SensorsHalGetSubHalV2_1Func* getSubHalV2_1Ptr =
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(SensorsHalGetSubHalV2_1Func*)dlsym(handle, "sensorsHalGetSubHal_2_1");
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if (getSubHalV2_1Ptr == nullptr) {
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ALOGE("Failed to locate sensorsHalGetSubHal function for library: %s",
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subHalLibraryFile.c_str());
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} else {
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std::function<SensorsHalGetSubHalV2_1Func> sensorsHalGetSubHal_2_1 =
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*getSubHalV2_1Ptr;
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uint32_t version;
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ISensorsSubHalV2_1* subHal = sensorsHalGetSubHal_2_1(&version);
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if (version != SUB_HAL_2_1_VERSION) {
|
|
ALOGE("SubHal version was not 2.1 for library: %s",
|
|
subHalLibraryFile.c_str());
|
|
} else {
|
|
ALOGV("Loaded SubHal from library: %s", subHalLibraryFile.c_str());
|
|
mSubHalList.push_back(std::make_unique<SubHalWrapperV2_1>(subHal));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void HalProxy::initializeSensorList() {
|
|
for (size_t subHalIndex = 0; subHalIndex < mSubHalList.size(); subHalIndex++) {
|
|
auto result = mSubHalList[subHalIndex]->getSensorsList([&](const auto& list) {
|
|
for (SensorInfo sensor : list) {
|
|
if (!subHalIndexIsClear(sensor.sensorHandle)) {
|
|
ALOGE("SubHal sensorHandle's first byte was not 0");
|
|
} else {
|
|
ALOGV("Loaded sensor: %s", sensor.name.c_str());
|
|
sensor.sensorHandle = setSubHalIndex(sensor.sensorHandle, subHalIndex);
|
|
setDirectChannelFlags(&sensor, mSubHalList[subHalIndex]);
|
|
mSensors[sensor.sensorHandle] = sensor;
|
|
}
|
|
}
|
|
});
|
|
if (!result.isOk()) {
|
|
ALOGE("getSensorsList call failed for SubHal: %s",
|
|
mSubHalList[subHalIndex]->getName().c_str());
|
|
}
|
|
}
|
|
}
|
|
|
|
void* HalProxy::getHandleForSubHalSharedObject(const std::string& filename) {
|
|
static const std::string kSubHalShareObjectLocations[] = {
|
|
"", // Default locations will be searched
|
|
#ifdef __LP64__
|
|
"/vendor/lib64/hw/", "/odm/lib64/hw/"
|
|
#else
|
|
"/vendor/lib/hw/", "/odm/lib/hw/"
|
|
#endif
|
|
};
|
|
|
|
for (const std::string& dir : kSubHalShareObjectLocations) {
|
|
void* handle = dlopen((dir + filename).c_str(), RTLD_NOW);
|
|
if (handle != nullptr) {
|
|
return handle;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void HalProxy::init() {
|
|
initializeSensorList();
|
|
}
|
|
|
|
void HalProxy::stopThreads() {
|
|
mThreadsRun.store(false);
|
|
if (mEventQueueFlag != nullptr && mEventQueue != nullptr) {
|
|
size_t numToRead = mEventQueue->availableToRead();
|
|
std::vector<Event> events(numToRead);
|
|
mEventQueue->read(events.data(), numToRead);
|
|
mEventQueueFlag->wake(static_cast<uint32_t>(EventQueueFlagBits::EVENTS_READ));
|
|
}
|
|
if (mWakelockQueueFlag != nullptr && mWakeLockQueue != nullptr) {
|
|
uint32_t kZero = 0;
|
|
mWakeLockQueue->write(&kZero);
|
|
mWakelockQueueFlag->wake(static_cast<uint32_t>(WakeLockQueueFlagBits::DATA_WRITTEN));
|
|
}
|
|
mWakelockCV.notify_one();
|
|
mEventQueueWriteCV.notify_one();
|
|
if (mPendingWritesThread.joinable()) {
|
|
mPendingWritesThread.join();
|
|
}
|
|
if (mWakelockThread.joinable()) {
|
|
mWakelockThread.join();
|
|
}
|
|
}
|
|
|
|
void HalProxy::disableAllSensors() {
|
|
for (const auto& sensorEntry : mSensors) {
|
|
int32_t sensorHandle = sensorEntry.first;
|
|
activate(sensorHandle, false /* enabled */);
|
|
}
|
|
std::lock_guard<std::mutex> dynamicSensorsLock(mDynamicSensorsMutex);
|
|
for (const auto& sensorEntry : mDynamicSensors) {
|
|
int32_t sensorHandle = sensorEntry.first;
|
|
activate(sensorHandle, false /* enabled */);
|
|
}
|
|
}
|
|
|
|
void HalProxy::startPendingWritesThread(HalProxy* halProxy) {
|
|
halProxy->handlePendingWrites();
|
|
}
|
|
|
|
void HalProxy::handlePendingWrites() {
|
|
// TODO(b/143302327): Find a way to optimize locking strategy maybe using two mutexes instead of
|
|
// one.
|
|
std::unique_lock<std::mutex> lock(mEventQueueWriteMutex);
|
|
while (mThreadsRun.load()) {
|
|
mEventQueueWriteCV.wait(
|
|
lock, [&] { return !mPendingWriteEventsQueue.empty() || !mThreadsRun.load(); });
|
|
if (mThreadsRun.load()) {
|
|
std::vector<Event>& pendingWriteEvents = mPendingWriteEventsQueue.front().first;
|
|
size_t numWakeupEvents = mPendingWriteEventsQueue.front().second;
|
|
size_t eventQueueSize = mEventQueue->getQuantumCount();
|
|
size_t numToWrite = std::min(pendingWriteEvents.size(), eventQueueSize);
|
|
lock.unlock();
|
|
if (!mEventQueue->writeBlocking(
|
|
pendingWriteEvents.data(), numToWrite,
|
|
static_cast<uint32_t>(EventQueueFlagBits::EVENTS_READ),
|
|
static_cast<uint32_t>(EventQueueFlagBits::READ_AND_PROCESS),
|
|
kPendingWriteTimeoutNs, mEventQueueFlag)) {
|
|
ALOGE("Dropping %zu events after blockingWrite failed.", numToWrite);
|
|
if (numWakeupEvents > 0) {
|
|
if (pendingWriteEvents.size() > eventQueueSize) {
|
|
decrementRefCountAndMaybeReleaseWakelock(
|
|
countNumWakeupEvents(pendingWriteEvents, eventQueueSize));
|
|
} else {
|
|
decrementRefCountAndMaybeReleaseWakelock(numWakeupEvents);
|
|
}
|
|
}
|
|
}
|
|
lock.lock();
|
|
mSizePendingWriteEventsQueue -= numToWrite;
|
|
if (pendingWriteEvents.size() > eventQueueSize) {
|
|
// TODO(b/143302327): Check if this erase operation is too inefficient. It will copy
|
|
// all the events ahead of it down to fill gap off array at front after the erase.
|
|
pendingWriteEvents.erase(pendingWriteEvents.begin(),
|
|
pendingWriteEvents.begin() + eventQueueSize);
|
|
} else {
|
|
mPendingWriteEventsQueue.pop();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void HalProxy::startWakelockThread(HalProxy* halProxy) {
|
|
halProxy->handleWakelocks();
|
|
}
|
|
|
|
void HalProxy::handleWakelocks() {
|
|
std::unique_lock<std::recursive_mutex> lock(mWakelockMutex);
|
|
while (mThreadsRun.load()) {
|
|
mWakelockCV.wait(lock, [&] { return mWakelockRefCount > 0 || !mThreadsRun.load(); });
|
|
if (mThreadsRun.load()) {
|
|
int64_t timeLeft;
|
|
if (sharedWakelockDidTimeout(&timeLeft)) {
|
|
resetSharedWakelock();
|
|
} else {
|
|
uint32_t numWakeLocksProcessed;
|
|
lock.unlock();
|
|
bool success = mWakeLockQueue->readBlocking(
|
|
&numWakeLocksProcessed, 1, 0,
|
|
static_cast<uint32_t>(WakeLockQueueFlagBits::DATA_WRITTEN), timeLeft);
|
|
lock.lock();
|
|
if (success) {
|
|
decrementRefCountAndMaybeReleaseWakelock(
|
|
static_cast<size_t>(numWakeLocksProcessed));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
resetSharedWakelock();
|
|
}
|
|
|
|
bool HalProxy::sharedWakelockDidTimeout(int64_t* timeLeft) {
|
|
bool didTimeout;
|
|
int64_t duration = getTimeNow() - mWakelockTimeoutStartTime;
|
|
if (duration > kWakelockTimeoutNs) {
|
|
didTimeout = true;
|
|
} else {
|
|
didTimeout = false;
|
|
*timeLeft = kWakelockTimeoutNs - duration;
|
|
}
|
|
return didTimeout;
|
|
}
|
|
|
|
void HalProxy::resetSharedWakelock() {
|
|
std::lock_guard<std::recursive_mutex> lockGuard(mWakelockMutex);
|
|
decrementRefCountAndMaybeReleaseWakelock(mWakelockRefCount);
|
|
mWakelockTimeoutResetTime = getTimeNow();
|
|
}
|
|
|
|
void HalProxy::postEventsToMessageQueue(const std::vector<Event>& events, size_t numWakeupEvents,
|
|
V2_0::implementation::ScopedWakelock wakelock) {
|
|
size_t numToWrite = 0;
|
|
std::lock_guard<std::mutex> lock(mEventQueueWriteMutex);
|
|
if (wakelock.isLocked()) {
|
|
incrementRefCountAndMaybeAcquireWakelock(numWakeupEvents);
|
|
}
|
|
if (mPendingWriteEventsQueue.empty()) {
|
|
numToWrite = std::min(events.size(), mEventQueue->availableToWrite());
|
|
if (numToWrite > 0) {
|
|
if (mEventQueue->write(events.data(), numToWrite)) {
|
|
// TODO(b/143302327): While loop if mEventQueue->avaiableToWrite > 0 to possibly fit
|
|
// in more writes immediately
|
|
mEventQueueFlag->wake(static_cast<uint32_t>(EventQueueFlagBits::READ_AND_PROCESS));
|
|
} else {
|
|
numToWrite = 0;
|
|
}
|
|
}
|
|
}
|
|
size_t numLeft = events.size() - numToWrite;
|
|
if (numToWrite < events.size() &&
|
|
mSizePendingWriteEventsQueue + numLeft <= kMaxSizePendingWriteEventsQueue) {
|
|
std::vector<Event> eventsLeft(events.begin() + numToWrite, events.end());
|
|
mPendingWriteEventsQueue.push({eventsLeft, numWakeupEvents});
|
|
mSizePendingWriteEventsQueue += numLeft;
|
|
mMostEventsObservedPendingWriteEventsQueue =
|
|
std::max(mMostEventsObservedPendingWriteEventsQueue, mSizePendingWriteEventsQueue);
|
|
mEventQueueWriteCV.notify_one();
|
|
}
|
|
}
|
|
|
|
bool HalProxy::incrementRefCountAndMaybeAcquireWakelock(size_t delta,
|
|
int64_t* timeoutStart /* = nullptr */) {
|
|
if (!mThreadsRun.load()) return false;
|
|
std::lock_guard<std::recursive_mutex> lockGuard(mWakelockMutex);
|
|
if (mWakelockRefCount == 0) {
|
|
acquire_wake_lock(PARTIAL_WAKE_LOCK, kWakelockName);
|
|
mWakelockCV.notify_one();
|
|
}
|
|
mWakelockTimeoutStartTime = getTimeNow();
|
|
mWakelockRefCount += delta;
|
|
if (timeoutStart != nullptr) {
|
|
*timeoutStart = mWakelockTimeoutStartTime;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void HalProxy::decrementRefCountAndMaybeReleaseWakelock(size_t delta,
|
|
int64_t timeoutStart /* = -1 */) {
|
|
if (!mThreadsRun.load()) return;
|
|
std::lock_guard<std::recursive_mutex> lockGuard(mWakelockMutex);
|
|
if (delta > mWakelockRefCount) {
|
|
ALOGE("Decrementing wakelock ref count by %zu when count is %zu",
|
|
delta, mWakelockRefCount);
|
|
}
|
|
if (timeoutStart == -1) timeoutStart = mWakelockTimeoutResetTime;
|
|
if (mWakelockRefCount == 0 || timeoutStart < mWakelockTimeoutResetTime) return;
|
|
mWakelockRefCount -= std::min(mWakelockRefCount, delta);
|
|
if (mWakelockRefCount == 0) {
|
|
release_wake_lock(kWakelockName);
|
|
}
|
|
}
|
|
|
|
void HalProxy::setDirectChannelFlags(SensorInfo* sensorInfo,
|
|
std::shared_ptr<ISubHalWrapperBase> subHal) {
|
|
bool sensorSupportsDirectChannel =
|
|
(sensorInfo->flags & (V1_0::SensorFlagBits::MASK_DIRECT_REPORT |
|
|
V1_0::SensorFlagBits::MASK_DIRECT_CHANNEL)) != 0;
|
|
if (mDirectChannelSubHal == nullptr && sensorSupportsDirectChannel) {
|
|
mDirectChannelSubHal = subHal;
|
|
} else if (mDirectChannelSubHal != nullptr && subHal != mDirectChannelSubHal) {
|
|
// disable direct channel capability for sensors in subHals that are not
|
|
// the only one we will enable
|
|
sensorInfo->flags &= ~(V1_0::SensorFlagBits::MASK_DIRECT_REPORT |
|
|
V1_0::SensorFlagBits::MASK_DIRECT_CHANNEL);
|
|
}
|
|
}
|
|
|
|
std::shared_ptr<ISubHalWrapperBase> HalProxy::getSubHalForSensorHandle(int32_t sensorHandle) {
|
|
return mSubHalList[extractSubHalIndex(sensorHandle)];
|
|
}
|
|
|
|
bool HalProxy::isSubHalIndexValid(int32_t sensorHandle) {
|
|
return extractSubHalIndex(sensorHandle) < mSubHalList.size();
|
|
}
|
|
|
|
size_t HalProxy::countNumWakeupEvents(const std::vector<Event>& events, size_t n) {
|
|
size_t numWakeupEvents = 0;
|
|
for (size_t i = 0; i < n; i++) {
|
|
int32_t sensorHandle = events[i].sensorHandle;
|
|
if (mSensors[sensorHandle].flags & static_cast<uint32_t>(V1_0::SensorFlagBits::WAKE_UP)) {
|
|
numWakeupEvents++;
|
|
}
|
|
}
|
|
return numWakeupEvents;
|
|
}
|
|
|
|
int32_t HalProxy::clearSubHalIndex(int32_t sensorHandle) {
|
|
return sensorHandle & (~kSensorHandleSubHalIndexMask);
|
|
}
|
|
|
|
bool HalProxy::subHalIndexIsClear(int32_t sensorHandle) {
|
|
return (sensorHandle & kSensorHandleSubHalIndexMask) == 0;
|
|
}
|
|
|
|
} // namespace implementation
|
|
} // namespace V2_1
|
|
} // namespace sensors
|
|
} // namespace hardware
|
|
} // namespace android
|
|
|