Supported synchronized fixed location and measurement from device files

Replace NMEA by one row fixed location data

Test: atest VtsHalGnssTargetTest
Test: launch_cvd -cpus 16 -memory_mb 16192  --start_gnss_proxy --gnss_file_path=/usr/local/google/home/yuchenhe/Downloads/raw.txt --fixed_location_file_path=/google/data/rw/users/yu/yuchenhe/input.txt
Bug: 213225295

Merged-In: Ide7bbb3e81a90414496084691227bd95a2e7af18
Change-Id: Ide7bbb3e81a90414496084691227bd95a2e7af18

gnss/common/utils/default/DeviceFileReader.cpp

@@ -22,8 +22,17 @@ namespace common {
 
 void DeviceFileReader::getDataFromDeviceFile(const std::string& command, int mMinIntervalMs) {
     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) {
         return;
@@ -68,10 +77,13 @@ void DeviceFileReader::getDataFromDeviceFile(const std::string& command, int mMi
     }
 
     // Cache the injected data.
-    if (ReplayUtils::isGnssRawMeasurement(inputStr)) {
+    if (command == CMD_GET_LOCATION) {
-        data_[CMD_GET_RAWMEASUREMENT] = inputStr;
+        // TODO validate data
-    } else if (ReplayUtils::isNMEA(inputStr)) {
         data_[CMD_GET_LOCATION] = inputStr;
+    } else if (command == CMD_GET_RAWMEASUREMENT) {
+        if (ReplayUtils::isGnssRawMeasurement(inputStr)) {
+            data_[CMD_GET_RAWMEASUREMENT] = inputStr;
+        }
     }
 }
 

gnss/common/utils/default/GnssReplayUtils.cpp

@@ -29,11 +29,24 @@ std::string ReplayUtils::getGnssPath() {
     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() {
     struct stat sb;
     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) {
     // TODO: add more logic check to by pass invalid data.
     return !inputStr.empty() && (inputStr.find("Raw") != std::string::npos);

gnss/common/utils/default/include/Constants.h

@@ -36,6 +36,7 @@ const float kIrnssL5FreqHz = 1176.45 * 1e6;
 
 // Location replay constants
 constexpr char GNSS_PATH[] = "/dev/gnss0";
+constexpr char FIXED_LOCATION_PATH[] = "/dev/gnss1";
 constexpr int INPUT_BUFFER_SIZE = 256;
 constexpr char CMD_GET_LOCATION[] = "CMD_GET_LOCATION";
 constexpr char CMD_GET_RAWMEASUREMENT[] = "CMD_GET_RAWMEASUREMENT";

gnss/common/utils/default/include/GnssReplayUtils.h

@@ -37,10 +37,14 @@ namespace common {
 struct ReplayUtils {
     static std::string getGnssPath();
 
+    static std::string getFixedLocationPath();
+
     static std::string getDataFromDeviceFile(const std::string& command, int mMinIntervalMs);
 
     static bool hasGnssDeviceFile();
 
+    static bool hasFixedLocationDeviceFile();
+
     static bool isGnssRawMeasurement(const std::string& inputStr);
 
     static bool isNMEA(const std::string& inputStr);

gnss/common/utils/default/include/v2_1/GnssTemplate.h

@@ -31,6 +31,7 @@
 #include <cutils/properties.h>
 
 #include "DeviceFileReader.h"
+#include "FixLocationParser.h"
 #include "GnssAntennaInfo.h"
 #include "GnssConfiguration.h"
 #include "GnssDebug.h"
@@ -38,7 +39,6 @@
 #include "GnssMeasurementCorrections.h"
 #include "GnssReplayUtils.h"
 #include "MockLocation.h"
-#include "NmeaFixInfo.h"
 #include "Utils.h"
 
 namespace android::hardware::gnss::common::implementation {
@@ -162,9 +162,12 @@ GnssTemplate<T_IGnss>::~GnssTemplate() {
 template <class T_IGnss>
 std::unique_ptr<V2_0::GnssLocation> GnssTemplate<T_IGnss>::getLocationFromHW() {
     mHardwareModeChecked = true;
+    if (!ReplayUtils::hasFixedLocationDeviceFile()) {
+        return nullptr;
+    }
     std::string inputStr =
             ::android::hardware::gnss::common::DeviceFileReader::Instance().getLocationData();
-    return NmeaFixInfo::getLocationFromInputStr(inputStr);
+    return FixLocationParser::getLocationFromInputStr(inputStr);
 }
 
 template <class T_IGnss>