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Commit 3870153f authored by Hao Chen's avatar Hao Chen Committed by Android (Google) Code Review
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Merge changes from topic "gnss" into sc-v2-dev

* changes:
  Supported synchronized fixed location and measurement from device files
  Add parser to support CSV location data
parents f26e49bf 55c22f89
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+1 −0
Original line number Original line Diff line number Diff line
@@ -39,6 +39,7 @@ cc_library_static {
        "v2_1/GnssMeasurement.cpp",
        "v2_1/GnssMeasurement.cpp",
        "v2_1/GnssMeasurementCorrections.cpp",
        "v2_1/GnssMeasurementCorrections.cpp",
        "DeviceFileReader.cpp",
        "DeviceFileReader.cpp",
        "FixLocationParser.cpp",
        "GnssRawMeasurementParser.cpp",
        "GnssRawMeasurementParser.cpp",
        "GnssReplayUtils.cpp",
        "GnssReplayUtils.cpp",
        "MockLocation.cpp",
        "MockLocation.cpp",
+17 −5
Original line number Original line Diff line number Diff line
@@ -22,8 +22,17 @@ namespace common {


void DeviceFileReader::getDataFromDeviceFile(const std::string& command, int mMinIntervalMs) {
void DeviceFileReader::getDataFromDeviceFile(const std::string& command, int mMinIntervalMs) {
    char inputBuffer[INPUT_BUFFER_SIZE];
    char inputBuffer[INPUT_BUFFER_SIZE];
    int mGnssFd = open(ReplayUtils::getGnssPath().c_str(),
    std::string deviceFilePath = "";
                       O_RDWR | O_NONBLOCK);
    if (command == CMD_GET_LOCATION) {
        deviceFilePath = ReplayUtils::getFixedLocationPath();
    } else if (command == CMD_GET_RAWMEASUREMENT) {
        deviceFilePath = ReplayUtils::getGnssPath();
    } else {
        // Invalid command
        return;
    }

    int mGnssFd = open(deviceFilePath.c_str(), O_RDWR | O_NONBLOCK);


    if (mGnssFd == -1) {
    if (mGnssFd == -1) {
        return;
        return;
@@ -68,10 +77,13 @@ void DeviceFileReader::getDataFromDeviceFile(const std::string& command, int mMi
    }
    }


    // Cache the injected data.
    // Cache the injected data.
    if (command == CMD_GET_LOCATION) {
        // TODO validate data
        data_[CMD_GET_LOCATION] = inputStr;
    } else if (command == CMD_GET_RAWMEASUREMENT) {
        if (ReplayUtils::isGnssRawMeasurement(inputStr)) {
        if (ReplayUtils::isGnssRawMeasurement(inputStr)) {
            data_[CMD_GET_RAWMEASUREMENT] = inputStr;
            data_[CMD_GET_RAWMEASUREMENT] = inputStr;
    } else if (ReplayUtils::isNMEA(inputStr)) {
        }
        data_[CMD_GET_LOCATION] = inputStr;
    }
    }
}
}


+76 −0
Original line number Original line Diff line number Diff line
/*
 * Copyright (C) 2022 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.
 */

#include "FixLocationParser.h"

#include <android/hardware/gnss/1.0/IGnss.h>

namespace android {
namespace hardware {
namespace gnss {
namespace common {

std::unique_ptr<V2_0::GnssLocation> FixLocationParser::getLocationFromInputStr(
        const std::string& locationStr) {
    /*
     * Fix,Provider,LatitudeDegrees,LongitudeDegrees,AltitudeMeters,SpeedMps,
     * AccuracyMeters,BearingDegrees,UnixTimeMillis,SpeedAccuracyMps,BearingAccuracyDegrees,
     * elapsedRealtimeNanos
     */
    if (locationStr.empty()) {
        return nullptr;
    }
    std::vector<std::string> locationStrRecords;
    ParseUtils::splitStr(locationStr, LINE_SEPARATOR, locationStrRecords);
    if (locationStrRecords.empty()) {
        return nullptr;
    }

    std::vector<std::string> locationValues;
    ParseUtils::splitStr(locationStrRecords[0], COMMA_SEPARATOR, locationValues);
    if (locationValues.size() < 12) {
        return nullptr;
    }
    V2_0::ElapsedRealtime elapsedRealtime = {
            .flags = V2_0::ElapsedRealtimeFlags::HAS_TIMESTAMP_NS |
                     V2_0::ElapsedRealtimeFlags::HAS_TIME_UNCERTAINTY_NS,
            .timestampNs = static_cast<uint64_t>(::android::elapsedRealtimeNano()),
            // This is an hardcoded value indicating a 1ms of uncertainty between the two clocks.
            // In an actual implementation provide an estimate of the synchronization uncertainty
            // or don't set the field.
            .timeUncertaintyNs = 1020400};

    V1_0::GnssLocation locationV1 = {
            .gnssLocationFlags = 0xFF,
            .latitudeDegrees = ParseUtils::tryParseDouble(locationValues[2], 0),
            .longitudeDegrees = ParseUtils::tryParseDouble(locationValues[3], 0),
            .altitudeMeters = ParseUtils::tryParseDouble(locationValues[4], 0),
            .speedMetersPerSec = ParseUtils::tryParsefloat(locationValues[5], 0),
            .bearingDegrees = ParseUtils::tryParsefloat(locationValues[7], 0),
            .horizontalAccuracyMeters = ParseUtils::tryParsefloat(locationValues[6], 0),
            .verticalAccuracyMeters = ParseUtils::tryParsefloat(locationValues[6], 0),
            .speedAccuracyMetersPerSecond = ParseUtils::tryParsefloat(locationValues[9], 0),
            .bearingAccuracyDegrees = ParseUtils::tryParsefloat(locationValues[10], 0),
            .timestamp = ParseUtils::tryParseLongLong(locationValues[8], 0)};

    V2_0::GnssLocation locationV2 = {.v1_0 = locationV1, .elapsedRealtime = elapsedRealtime};
    return std::make_unique<V2_0::GnssLocation>(locationV2);
}

}  // namespace common
}  // namespace gnss
}  // namespace hardware
}  // namespace android
+13 −0
Original line number Original line Diff line number Diff line
@@ -29,11 +29,24 @@ std::string ReplayUtils::getGnssPath() {
    return GNSS_PATH;
    return GNSS_PATH;
}
}


std::string ReplayUtils::getFixedLocationPath() {
    char devname_value[PROPERTY_VALUE_MAX] = "";
    if (property_get("debug.location.fixedlocation.devname", devname_value, NULL) > 0) {
        return devname_value;
    }
    return FIXED_LOCATION_PATH;
}

bool ReplayUtils::hasGnssDeviceFile() {
bool ReplayUtils::hasGnssDeviceFile() {
    struct stat sb;
    struct stat sb;
    return stat(getGnssPath().c_str(), &sb) != -1;
    return stat(getGnssPath().c_str(), &sb) != -1;
}
}


bool ReplayUtils::hasFixedLocationDeviceFile() {
    struct stat sb;
    return stat(getFixedLocationPath().c_str(), &sb) != -1;
}

bool ReplayUtils::isGnssRawMeasurement(const std::string& inputStr) {
bool ReplayUtils::isGnssRawMeasurement(const std::string& inputStr) {
    // TODO: add more logic check to by pass invalid data.
    // TODO: add more logic check to by pass invalid data.
    return !inputStr.empty() && (inputStr.find("Raw") != std::string::npos);
    return !inputStr.empty() && (inputStr.find("Raw") != std::string::npos);
+1 −0
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@@ -36,6 +36,7 @@ const float kIrnssL5FreqHz = 1176.45 * 1e6;


// Location replay constants
// Location replay constants
constexpr char GNSS_PATH[] = "/dev/gnss0";
constexpr char GNSS_PATH[] = "/dev/gnss0";
constexpr char FIXED_LOCATION_PATH[] = "/dev/gnss1";
constexpr int INPUT_BUFFER_SIZE = 256;
constexpr int INPUT_BUFFER_SIZE = 256;
constexpr char CMD_GET_LOCATION[] = "CMD_GET_LOCATION";
constexpr char CMD_GET_LOCATION[] = "CMD_GET_LOCATION";
constexpr char CMD_GET_RAWMEASUREMENT[] = "CMD_GET_RAWMEASUREMENT";
constexpr char CMD_GET_RAWMEASUREMENT[] = "CMD_GET_RAWMEASUREMENT";
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