Merge "Log constellation types in GnssMetrics" (39e6f112) · Commits · e / os / android_frameworks_base

location/java/android/location/GnssStatus.java

+35 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		package android.location;

		import android.annotation.IntDef;
		import android.annotation.NonNull;

		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		@@ -44,6 +45,8 @@ public final class GnssStatus {
		public static final int CONSTELLATION_GALILEO = 6;
		/** Constellation type constant for IRNSS. */
		public static final int CONSTELLATION_IRNSS = 7;
		/** @hide */
		public static final int CONSTELLATION_COUNT = 8;

		/** @hide */
		public static final int GNSS_SV_FLAGS_NONE = 0;
		@@ -251,4 +254,36 @@ public final class GnssStatus {
		public float getCarrierFrequencyHz(int satIndex) {
		return mCarrierFrequencies[satIndex];
		}

		/**
		* Returns the string representation of a constellation type. For example,
		* {@link #CONSTELLATION_GPS} is represented by the string GPS.
		*
		* @param constellationType the constellation type.
		* @return the string representation.
		* @hide
		*/
		@NonNull
		public static String constellationTypeToString(@ConstellationType int constellationType) {
		switch (constellationType) {
		case CONSTELLATION_UNKNOWN:
		return "UNKNOWN";
		case CONSTELLATION_GPS:
		return "GPS";
		case CONSTELLATION_SBAS:
		return "SBAS";
		case CONSTELLATION_GLONASS:
		return "GLONASS";
		case CONSTELLATION_QZSS:
		return "QZSS";
		case CONSTELLATION_BEIDOU:
		return "BEIDOU";
		case CONSTELLATION_GALILEO:
		return "GALILEO";
		case CONSTELLATION_IRNSS:
		return "IRNSS";
		default:
		return Integer.toString(constellationType);
		}
		}
		}

location/java/com/android/internal/location/gnssmetrics/GnssMetrics.java

+35 −5

Original line number	Diff line number	Diff line
		@@ -16,26 +16,26 @@

		package com.android.internal.location.gnssmetrics;

		import android.location.GnssStatus;
		import android.os.SystemClock;
		import android.os.connectivity.GpsBatteryStats;
		import android.os.SystemProperties;

		import android.os.connectivity.GpsBatteryStats;
		import android.server.location.ServerLocationProtoEnums;

		import android.text.format.DateUtils;
		import android.util.Base64;
		import android.util.Log;
		import android.util.StatsLog;
		import android.util.TimeUtils;

		import java.util.Arrays;

		import com.android.internal.app.IBatteryStats;
		import com.android.internal.location.nano.GnssLogsProto.GnssLog;
		import com.android.internal.location.nano.GnssLogsProto.PowerMetrics;

		import java.util.Arrays;

		/**
		* GnssMetrics: Is used for logging GNSS metrics
		*
		* @hide
		*/
		public class GnssMetrics {
		@@ -66,6 +66,11 @@ public class GnssMetrics {
		/* GNSS power metrics */
		private GnssPowerMetrics mGnssPowerMetrics;

		/**
		* A boolean array indicating whether the constellation types have been used in fix.
		*/
		private boolean[] mConstellationTypes;

		/** Constructor */
		public GnssMetrics(IBatteryStats stats) {
		mGnssPowerMetrics = new GnssPowerMetrics(stats);
		@@ -156,6 +161,18 @@ public class GnssMetrics {
		return;
		}


		/**
		* Logs that a constellation type has been observed.
		*/
		public void logConstellationType(int constellationType) {
		if (constellationType >= mConstellationTypes.length) {
		Log.e(TAG, "Constellation type " + constellationType + " is not valid.");
		return;
		}
		mConstellationTypes[constellationType] = true;
		}

		/**
		* Dumps GNSS metrics as a proto string
		* @return
		@@ -232,6 +249,13 @@ public class GnssMetrics {
		s.append(" Top 4 Avg CN0 standard deviation (dB-Hz): ").append(
		topFourAverageCn0Statistics.getStandardDeviation()).append("\n");
		}
		s.append(" Used-in-fix constellation types: ");
		for (int i = 0; i < mConstellationTypes.length; i++) {
		if (mConstellationTypes[i]) {
		s.append(GnssStatus.constellationTypeToString(i)).append(" ");
		}
		}
		s.append("\n");
		s.append("GNSS_KPI_END").append("\n");
		GpsBatteryStats stats = mGnssPowerMetrics.getGpsBatteryStats();
		if (stats != null) {
		@@ -320,9 +344,15 @@ public class GnssMetrics {
		timeToFirstFixSecStatistics.reset();
		positionAccuracyMeterStatistics.reset();
		topFourAverageCn0Statistics.reset();
		resetConstellationTypes();
		return;
		}

		/** Resets {@link #mConstellationTypes} as an all-false boolean array. */
		public void resetConstellationTypes() {
		mConstellationTypes = new boolean[GnssStatus.CONSTELLATION_COUNT];
		}

		/* Class for handling GNSS power related metrics */
		private class GnssPowerMetrics {

services/core/java/com/android/server/location/GnssLocationProvider.java

+8 −0

Original line number	Diff line number	Diff line
		@@ -495,6 +495,7 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
		@Override
		public void onUpdateSatelliteBlacklist(int[] constellations, int[] svids) {
		mHandler.post(() -> mGnssConfiguration.setSatelliteBlacklist(constellations, svids));
		mGnssMetrics.resetConstellationTypes();
		}

		private void subscriptionOrCarrierConfigChanged(Context context) {
		@@ -1443,6 +1444,13 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
		GnssStatus.GNSS_SV_FLAGS_HAS_CARRIER_FREQUENCY) == 0
		? "" : "F"));
		}

		if ((info.mSvidWithFlags[i] & GnssStatus.GNSS_SV_FLAGS_USED_IN_FIX) != 0) {
		int constellationType =
		(info.mSvidWithFlags[i] >> GnssStatus.CONSTELLATION_TYPE_SHIFT_WIDTH)
		& GnssStatus.CONSTELLATION_TYPE_MASK;
		mGnssMetrics.logConstellationType(constellationType);
		}
		}
		if (usedInFixCount > 0) {
		meanCn0 /= usedInFixCount;