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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_1 {
namespace implementation {
using ::android::hardware::hidl_vec;
#define GNSS_DEBUG_UNKNOWN_HORIZONTAL_ACCURACY_METERS (20000000)
#define GNSS_DEBUG_UNKNOWN_VERTICAL_ACCURACY_METERS (20000)
#define GNSS_DEBUG_UNKNOWN_SPEED_ACCURACY_PER_SEC (500)
#define GNSS_DEBUG_UNKNOWN_BEARING_ACCURACY_DEG (180)
#define GNSS_DEBUG_UNKNOWN_UTC_TIME (1483228800000LL) // 1/1/2017 00:00 GMT
#define GNSS_DEBUG_UNKNOWN_UTC_TIME_UNC_MIN (999) // 999 ns
#define GNSS_DEBUG_UNKNOWN_UTC_TIME_UNC_MAX (1.57783680E17) // 5 years in ns
#define GNSS_DEBUG_UNKNOWN_FREQ_UNC_NS_PER_SEC (2.0e5) // ppm
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;
timeval tv_now, tv_report;
tv_report.tv_sec = reports.mLocation.mUtcReported.tv_sec;
tv_report.tv_usec = reports.mLocation.mUtcReported.tv_nsec / 1000ULL;
gettimeofday(&tv_now, NULL);
data.position.ageSeconds =
(tv_now.tv_sec - tv_report.tv_sec) +
(float)((tv_now.tv_usec - tv_report.tv_usec)) / 1000000;
}
else {
data.position.valid = false;
}
if (data.position.horizontalAccuracyMeters <= 0 ||
data.position.horizontalAccuracyMeters > GNSS_DEBUG_UNKNOWN_HORIZONTAL_ACCURACY_METERS) {
data.position.horizontalAccuracyMeters = GNSS_DEBUG_UNKNOWN_HORIZONTAL_ACCURACY_METERS;
}
if (data.position.verticalAccuracyMeters <= 0 ||
data.position.verticalAccuracyMeters > GNSS_DEBUG_UNKNOWN_VERTICAL_ACCURACY_METERS) {
data.position.verticalAccuracyMeters = GNSS_DEBUG_UNKNOWN_VERTICAL_ACCURACY_METERS;
}
if (data.position.speedAccuracyMetersPerSecond <= 0 ||
data.position.speedAccuracyMetersPerSecond > GNSS_DEBUG_UNKNOWN_SPEED_ACCURACY_PER_SEC) {
data.position.speedAccuracyMetersPerSecond = GNSS_DEBUG_UNKNOWN_SPEED_ACCURACY_PER_SEC;
}
if (data.position.bearingAccuracyDegrees <= 0 ||
data.position.bearingAccuracyDegrees > GNSS_DEBUG_UNKNOWN_BEARING_ACCURACY_DEG) {
data.position.bearingAccuracyDegrees = GNSS_DEBUG_UNKNOWN_BEARING_ACCURACY_DEG;
}
// time block
if (reports.mTime.mValid) {
data.time.timeEstimate = reports.mTime.timeEstimate;
data.time.timeUncertaintyNs = reports.mTime.timeUncertaintyNs;
data.time.frequencyUncertaintyNsPerSec =
reports.mTime.frequencyUncertaintyNsPerSec;
}
if (data.time.timeEstimate < GNSS_DEBUG_UNKNOWN_UTC_TIME) {
data.time.timeEstimate = GNSS_DEBUG_UNKNOWN_UTC_TIME;
}
if (data.time.timeUncertaintyNs <= 0) {
data.time.timeUncertaintyNs = (float)GNSS_DEBUG_UNKNOWN_UTC_TIME_UNC_MIN;
} else if (data.time.timeUncertaintyNs > GNSS_DEBUG_UNKNOWN_UTC_TIME_UNC_MAX) {
data.time.timeUncertaintyNs = (float)GNSS_DEBUG_UNKNOWN_UTC_TIME_UNC_MAX;
}
if (data.time.frequencyUncertaintyNsPerSec <= 0 ||
data.time.frequencyUncertaintyNsPerSec > (float)GNSS_DEBUG_UNKNOWN_FREQ_UNC_NS_PER_SEC) {
data.time.frequencyUncertaintyNsPerSec = (float)GNSS_DEBUG_UNKNOWN_FREQ_UNC_NS_PER_SEC;
}
// 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_1
} // namespace gnss
} // namespace hardware
} // namespace android
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