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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 "LocSvc_GnssDebugInterface"
#include <log/log.h>
#include <log_util.h>
#include "Gnss.h"
#include "GnssDebug.h"
#include "LocationUtil.h"
namespace android {
namespace hardware {
namespace gnss {
namespace V1_0 {
namespace implementation {
using ::android::hardware::hidl_vec;
#define GNSS_DEBUG_UNKNOWN_UTC_TIME (1483228800000ULL) // 1/1/2017 00:00 GMT
#define GNSS_DEBUG_UNKNOWN_UTC_TIME_UNC (1.57783680E17) // 5 years in ns
GnssDebug::GnssDebug(Gnss* gnss) : mGnss(gnss)
{
}
/*
* This methods requests position, time and satellite ephemeris debug information
* from the HAL.
*
* @return void
*/
Return<void> GnssDebug::getDebugData(getDebugData_cb _hidl_cb)
{
LOC_LOGD("%s]: ", __func__);
DebugData data = { };
if((nullptr == mGnss) || (nullptr == mGnss->getGnssInterface())){
LOC_LOGE("GnssDebug - Null GNSS interface");
_hidl_cb(data);
return Void();
}
// get debug report snapshot via hal interface
GnssDebugReport reports = { };
mGnss->getGnssInterface()->getDebugReport(reports);
// location block
if (reports.mLocation.mValid) {
data.position.valid = true;
data.position.latitudeDegrees = reports.mLocation.mLocation.latitude;
data.position.longitudeDegrees = reports.mLocation.mLocation.longitude;
data.position.altitudeMeters = reports.mLocation.mLocation.altitude;
data.position.speedMetersPerSec =
(double)(reports.mLocation.mLocation.speed);
data.position.bearingDegrees =
(double)(reports.mLocation.mLocation.bearing);
data.position.horizontalAccuracyMeters =
(double)(reports.mLocation.mLocation.accuracy);
data.position.verticalAccuracyMeters =
reports.mLocation.verticalAccuracyMeters;
data.position.speedAccuracyMetersPerSecond =
reports.mLocation.speedAccuracyMetersPerSecond;
data.position.bearingAccuracyDegrees =
reports.mLocation.bearingAccuracyDegrees;
struct timespec tv_now;
clock_gettime(CLOCK_MONOTONIC, &tv_now);
data.position.ageSeconds =
(tv_now.tv_sec - reports.mLocation.mUtcReported.tv_sec) +
(float)((tv_now.tv_nsec - reports.mLocation.mUtcReported.tv_nsec)) / 1000000000LL;
}
else {
data.position.valid = false;
}
// time block
if (reports.mTime.mValid) {
data.time.timeEstimate = reports.mTime.timeEstimate;
data.time.timeUncertaintyNs = reports.mTime.timeUncertaintyNs;
data.time.frequencyUncertaintyNsPerSec =
reports.mTime.frequencyUncertaintyNsPerSec;
}
else {
data.time.timeEstimate = GNSS_DEBUG_UNKNOWN_UTC_TIME;
data.time.timeUncertaintyNs = (float)(GNSS_DEBUG_UNKNOWN_UTC_TIME_UNC);
data.time.frequencyUncertaintyNsPerSec = 0;
}
// satellite data block
SatelliteData s = { };
std::vector<SatelliteData> s_array = { };
for (uint32_t i=0; i<reports.mSatelliteInfo.size(); i++) {
memset(&s, 0, sizeof(s));
s.svid = reports.mSatelliteInfo[i].svid;
convertGnssConstellationType(
reports.mSatelliteInfo[i].constellation, s.constellation);
convertGnssEphemerisType(
reports.mSatelliteInfo[i].mEphemerisType, s.ephemerisType);
convertGnssEphemerisSource(
reports.mSatelliteInfo[i].mEphemerisSource, s.ephemerisSource);
convertGnssEphemerisHealth(
reports.mSatelliteInfo[i].mEphemerisHealth, s.ephemerisHealth);
s.ephemerisAgeSeconds =
reports.mSatelliteInfo[i].ephemerisAgeSeconds;
s.serverPredictionIsAvailable =
reports.mSatelliteInfo[i].serverPredictionIsAvailable;
s.serverPredictionAgeSeconds =
reports.mSatelliteInfo[i].serverPredictionAgeSeconds;
s_array.push_back(s);
}
data.satelliteDataArray = s_array;
// callback HIDL with collected debug data
_hidl_cb(data);
return Void();
}
} // namespace implementation
} // namespace V1_0
} // namespace gnss
} // namespace hardware
} // namespace android
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