1 /*
2 * Copyright (C) 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "GnssMeasIfaceAidl"
18
19 #include "GnssMeasurementInterface.h"
20 #include <aidl/android/hardware/gnss/BnGnss.h>
21 #include <log/log.h>
22 #include "Utils.h"
23
24 namespace aidl::android::hardware::gnss {
25
26 using Utils = ::android::hardware::gnss::common::Utils;
27
28 std::shared_ptr<IGnssMeasurementCallback> GnssMeasurementInterface::sCallback = nullptr;
29
GnssMeasurementInterface()30 GnssMeasurementInterface::GnssMeasurementInterface() : mMinIntervalMillis(1000) {}
31
~GnssMeasurementInterface()32 GnssMeasurementInterface::~GnssMeasurementInterface() {
33 stop();
34 }
35
setCallback(const std::shared_ptr<IGnssMeasurementCallback> & callback,const bool enableFullTracking,const bool enableCorrVecOutputs)36 ndk::ScopedAStatus GnssMeasurementInterface::setCallback(
37 const std::shared_ptr<IGnssMeasurementCallback>& callback, const bool enableFullTracking,
38 const bool enableCorrVecOutputs) {
39 ALOGD("setCallback: enableFullTracking: %d enableCorrVecOutputs: %d", (int)enableFullTracking,
40 (int)enableCorrVecOutputs);
41 std::unique_lock<std::mutex> lock(mMutex);
42 sCallback = callback;
43
44 if (mIsActive) {
45 ALOGW("GnssMeasurement callback already set. Resetting the callback...");
46 stop();
47 }
48 start(enableCorrVecOutputs);
49
50 return ndk::ScopedAStatus::ok();
51 }
52
close()53 ndk::ScopedAStatus GnssMeasurementInterface::close() {
54 ALOGD("close");
55 stop();
56 std::unique_lock<std::mutex> lock(mMutex);
57 sCallback = nullptr;
58 return ndk::ScopedAStatus::ok();
59 }
60
start(const bool enableCorrVecOutputs)61 void GnssMeasurementInterface::start(const bool enableCorrVecOutputs) {
62 ALOGD("start");
63 mIsActive = true;
64 mThread = std::thread([this, enableCorrVecOutputs]() {
65 while (mIsActive == true) {
66 auto measurement = Utils::getMockMeasurement(enableCorrVecOutputs);
67 this->reportMeasurement(measurement);
68
69 std::this_thread::sleep_for(std::chrono::milliseconds(mMinIntervalMillis));
70 }
71 });
72 mThread.detach();
73 }
74
stop()75 void GnssMeasurementInterface::stop() {
76 ALOGD("stop");
77 mIsActive = false;
78 }
79
reportMeasurement(const GnssData & data)80 void GnssMeasurementInterface::reportMeasurement(const GnssData& data) {
81 ALOGD("reportMeasurement()");
82 std::shared_ptr<IGnssMeasurementCallback> callbackCopy;
83 {
84 std::unique_lock<std::mutex> lock(mMutex);
85 if (sCallback == nullptr) {
86 ALOGE("%s: GnssMeasurement::sCallback is null.", __func__);
87 return;
88 }
89 callbackCopy = sCallback;
90 }
91 callbackCopy->gnssMeasurementCb(data);
92 }
93
94 } // namespace aidl::android::hardware::gnss
95