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GnssMeasurement.cpp
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GnssMeasurement.cpp
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/*
* Copyright (C) 2016 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.
*/
#define LOG_TAG "GnssRenesasHAL_GnssMeasurementInterface"
#include <memory>
#include "GnssMeasToLocSync.h"
#include "GnssMeasurement.h"
#include "GnssMeasQueue.h"
#include "GnssIParser.h"
namespace android {
namespace hardware {
namespace gnss {
namespace V1_0 {
namespace renesas {
static const bool on = true;
static const bool off = false;
static const int8_t measBeforeLocationEventsNum = 2; // value depends on CTS testGnssMeasurementWhenNoLocation
sp<MeasurementCb> GnssMeasurementImpl::sGnssMeasurementsCbIface = nullptr;
GnssMeasurementImpl::GnssMeasurementImpl():
mThreadExit(false)
{}
// Methods from ::android::hardware::gnss::V1_0::IGnssMeasurement follow.
Return<GnssMeasurementImpl::GnssMeasurementStatus> GnssMeasurementImpl::setCallback(
const sp<IGnssMeasurementCallback>& callback)
{
if (sGnssMeasurementsCbIface != nullptr) {
ALOGE("%s: GnssMeasurements already init", __func__);
return GnssMeasurementStatus::ERROR_ALREADY_INIT;
}
GnssMeasToLocSync& syncInstance = GnssMeasToLocSync::getInstance();
syncInstance.SetEventsToWait(measBeforeLocationEventsNum);
sGnssMeasurementsCbIface = callback;
ALOGD("%s: GnssMeasurements initialized", __func__);
mThreadExit = false;
if (!mGnssMeasurementsCallbackThread.joinable()) {
mGnssMeasurementsCallbackThread = std::thread(&GnssMeasurementImpl::callbackThread, this);
}
return GnssMeasurementStatus::SUCCESS;
}
Return<void> GnssMeasurementImpl::close()
{
if (sGnssMeasurementsCbIface == nullptr) {
ALOGD("%s: called before setCallback", __func__);
return Void();
}
GnssMeasToLocSync& syncInstance = GnssMeasToLocSync::getInstance();
syncInstance.SetEventsToWait(0);
sGnssMeasurementsCbIface = nullptr;
mThreadExit = true;
mCallbackCond.notify_one();
if (mGnssMeasurementsCallbackThread.joinable()) {
mGnssMeasurementsCallbackThread.join();
}
ALOGD("%s: GnssMeasurements closed", __func__);
return Void();
}
void GnssMeasurementImpl::callbackThread(void)
{
ALOGV("[%s, line %d] Entry", __func__, __LINE__);
GnssMeasToLocSync& syncInstance = GnssMeasToLocSync::getInstance();
GnssMeasQueue& instance = GnssMeasQueue::getInstance();
instance.setState(on);
while (!mThreadExit) {
uint8_t flagReady = 0;
auto data = std::make_unique<MeasurementCb::GnssData> ();
while (!instance.empty()) {
auto parser = instance.pop();
if (nullptr == parser) {
ALOGV("[%s, line %d] parser is null", __func__, __LINE__);
continue;
}
flagReady |= parser->retrieveSvInfo(*data);
if (sGnssMeasurementsCbIface != nullptr && GnssIParser::Ready == flagReady) {
sGnssMeasurementsCbIface->GnssMeasurementCb(*data);
ALOGD("GNSS Measurements sent");
syncInstance.UpdateStatus((int8_t)-1);
break;
}
}
std::unique_lock<std::mutex> lock(mCallbackMutex);
mCallbackCond.wait_for(lock,
std::chrono::seconds(1));
}
instance.setState(off);
ALOGV("[%s, line %d] Entry", __func__, __LINE__);
}
} // namespace renesas
} // namespace V1_0
} // namespace gnss
} // namespace hardware
} // namespace android