Merge "Accumulate Mobile Radio and Gnss measured energy in BatteryStats" into sc-dev am: 522bb3d9cc (5e5c72e7) · Commits · e / os / android_frameworks_base

core/java/android/os/BatteryStats.java

+36 −0

Original line number	Diff line number	Diff line
		@@ -1003,6 +1003,24 @@ public abstract class BatteryStats implements Parcelable {
		*/
		public abstract long getCpuMeasuredBatteryConsumptionUC();

		/**
		* Returns the battery consumption (in microcoulombs) of the uid's GNSS usage, derived from
		* on device power measurement data.
		* Will return {@link #POWER_DATA_UNAVAILABLE} if data is unavailable.
		*
		* {@hide}
		*/
		public abstract long getGnssMeasuredBatteryConsumptionUC();

		/**
		* Returns the battery consumption (in microcoulombs) of the uid's radio usage, derived from
		* on device power measurement data.
		* Will return {@link #POWER_DATA_UNAVAILABLE} if data is unavailable.
		*
		* {@hide}
		*/
		public abstract long getMobileRadioMeasuredBatteryConsumptionUC();

		/**
		* Returns the battery consumption (in microcoulombs) of the screen while on and uid active,
		* derived from on device power measurement data.
		@@ -2547,6 +2565,24 @@ public abstract class BatteryStats implements Parcelable {
		*/
		public abstract long getCpuMeasuredBatteryConsumptionUC();

		/**
		* Returns the battery consumption (in microcoulombs) of the GNSS, derived from on device power
		* measurement data.
		* Will return {@link #POWER_DATA_UNAVAILABLE} if data is unavailable.
		*
		* {@hide}
		*/
		public abstract long getGnssMeasuredBatteryConsumptionUC();

		/**
		* Returns the battery consumption (in microcoulombs) of the radio, derived from on device power
		* measurement data.
		* Will return {@link #POWER_DATA_UNAVAILABLE} if data is unavailable.
		*
		* {@hide}
		*/
		public abstract long getMobileRadioMeasuredBatteryConsumptionUC();

		/**
		* Returns the battery consumption (in microcoulombs) of the screen while on, derived from on
		* device power measurement data.

core/java/com/android/internal/os/BatteryStatsImpl.java

+157 −8

Original line number	Diff line number	Diff line
		@@ -170,7 +170,7 @@ public class BatteryStatsImpl extends BatteryStats {
		private static final int MAGIC = 0xBA757475; // 'BATSTATS'

		// Current on-disk Parcel version
		static final int VERSION = 195;
		static final int VERSION = 196;

		// The maximum number of names wakelocks we will keep track of
		// per uid; once the limit is reached, we batch the remaining wakelocks
		@@ -1014,6 +1014,9 @@ public class BatteryStatsImpl extends BatteryStats {
		@Nullable BluetoothPowerCalculator mBluetoothPowerCalculator = null;
		/** Cpu Power calculator for attributing measured cpu charge consumption to uids */
		@Nullable CpuPowerCalculator mCpuPowerCalculator = null;
		/** Mobile Radio Power calculator for attributing measured radio charge consumption to uids */
		@Nullable
		MobileRadioPowerCalculator mMobileRadioPowerCalculator = null;
		/** Wifi Power calculator for attributing measured wifi charge consumption to uids */
		@Nullable WifiPowerCalculator mWifiPowerCalculator = null;

		@@ -6982,6 +6985,16 @@ public class BatteryStatsImpl extends BatteryStats {
		return getPowerBucketConsumptionUC(MeasuredEnergyStats.POWER_BUCKET_CPU);
		}

		@Override
		public long getGnssMeasuredBatteryConsumptionUC() {
		return getPowerBucketConsumptionUC(MeasuredEnergyStats.POWER_BUCKET_GNSS);
		}

		@Override
		public long getMobileRadioMeasuredBatteryConsumptionUC() {
		return getPowerBucketConsumptionUC(MeasuredEnergyStats.POWER_BUCKET_MOBILE_RADIO);
		}

		@Override
		public long getScreenOnMeasuredBatteryConsumptionUC() {
		return getPowerBucketConsumptionUC(MeasuredEnergyStats.POWER_BUCKET_SCREEN_ON);
		@@ -7841,6 +7854,16 @@ public class BatteryStatsImpl extends BatteryStats {
		return getMeasuredBatteryConsumptionUC(MeasuredEnergyStats.POWER_BUCKET_CPU);
		}

		@Override
		public long getGnssMeasuredBatteryConsumptionUC() {
		return getMeasuredBatteryConsumptionUC(MeasuredEnergyStats.POWER_BUCKET_GNSS);
		}

		@Override
		public long getMobileRadioMeasuredBatteryConsumptionUC() {
		return getMeasuredBatteryConsumptionUC(MeasuredEnergyStats.POWER_BUCKET_MOBILE_RADIO);
		}

		@Override
		public long getScreenOnMeasuredBatteryConsumptionUC() {
		return getMeasuredBatteryConsumptionUC(MeasuredEnergyStats.POWER_BUCKET_SCREEN_ON);
		@@ -7880,6 +7903,27 @@ public class BatteryStatsImpl extends BatteryStats {
		return (topTimeUs < fgTimeUs) ? topTimeUs : fgTimeUs;
		}


		/**
		* Gets the uid's time spent using the GNSS since last marked. Also sets the mark time for
		* the GNSS timer.
		*/
		private long markGnssTimeUs(long elapsedRealtimeMs) {
		final Sensor sensor = mSensorStats.get(Sensor.GPS);
		if (sensor == null) {
		return 0;
		}

		final StopwatchTimer timer = sensor.mTimer;
		if (timer == null) {
		return 0;
		}

		final long gnssTimeUs = timer.getTimeSinceMarkLocked(elapsedRealtimeMs * 1000);
		timer.setMark(elapsedRealtimeMs);
		return gnssTimeUs;
		}

		public StopwatchTimer createAudioTurnedOnTimerLocked() {
		if (mAudioTurnedOnTimer == null) {
		mAudioTurnedOnTimer = new StopwatchTimer(mBsi.mClocks, Uid.this, AUDIO_TURNED_ON,
		@@ -11823,7 +11867,7 @@ public class BatteryStatsImpl extends BatteryStats {
		* Distribute Cell radio energy info and network traffic to apps.
		*/
		public void noteModemControllerActivity(@Nullable final ModemActivityInfo activityInfo,
		long elapsedRealtimeMs, long uptimeMs) {
		final long consumedChargeUC, long elapsedRealtimeMs, long uptimeMs) {
		if (DEBUG_ENERGY) {
		Slog.d(TAG, "Updating mobile radio stats with " + activityInfo);
		}
		@@ -11854,6 +11898,16 @@ public class BatteryStatsImpl extends BatteryStats {
		return;
		}

		final SparseDoubleArray uidEstimatedConsumptionMah;
		if (consumedChargeUC > 0 && mMobileRadioPowerCalculator != null
		&& mGlobalMeasuredEnergyStats != null) {
		mGlobalMeasuredEnergyStats.updateStandardBucket(
		MeasuredEnergyStats.POWER_BUCKET_MOBILE_RADIO, consumedChargeUC);
		uidEstimatedConsumptionMah = new SparseDoubleArray();
		} else {
		uidEstimatedConsumptionMah = null;
		}

		if (deltaInfo != null) {
		mHasModemReporting = true;
		mModemActivity.getIdleTimeCounter().addCountLocked(
		@@ -11898,7 +11952,7 @@ public class BatteryStatsImpl extends BatteryStats {
		mTmpRailStats.resetCellularTotalEnergyUsed();
		}
		}
		long radioTimeUs = mMobileRadioActivePerAppTimer.getTimeSinceMarkLocked(
		long totalAppRadioTimeUs = mMobileRadioActivePerAppTimer.getTimeSinceMarkLocked(
		elapsedRealtimeMs * 1000);
		mMobileRadioActivePerAppTimer.setMark(elapsedRealtimeMs);

		@@ -11958,12 +12012,21 @@ public class BatteryStatsImpl extends BatteryStats {

		// Distribute total radio active time in to this app.
		final long appPackets = entry.rxPackets + entry.txPackets;
		final long appRadioTimeUs = (radioTimeUs * appPackets) / totalPackets;
		final long appRadioTimeUs =
		(totalAppRadioTimeUs * appPackets) / totalPackets;
		u.noteMobileRadioActiveTimeLocked(appRadioTimeUs);

		// Distribute measured mobile radio charge consumption based on app radio
		// active time
		if (uidEstimatedConsumptionMah != null) {
		uidEstimatedConsumptionMah.add(u.getUid(),
		mMobileRadioPowerCalculator.calcPowerFromRadioActiveDurationMah(
		appRadioTimeUs / 1000));
		}

		// Remove this app from the totals, so that we don't lose any time
		// due to rounding.
		radioTimeUs -= appRadioTimeUs;
		totalAppRadioTimeUs -= appRadioTimeUs;
		totalPackets -= appPackets;

		if (deltaInfo != null) {
		@@ -11988,12 +12051,51 @@ public class BatteryStatsImpl extends BatteryStats {
		}
		}

		if (radioTimeUs > 0) {
		if (totalAppRadioTimeUs > 0) {
		// Whoops, there is some radio time we can't blame on an app!
		mMobileRadioActiveUnknownTime.addCountLocked(radioTimeUs);
		mMobileRadioActiveUnknownTime.addCountLocked(totalAppRadioTimeUs);
		mMobileRadioActiveUnknownCount.addCountLocked(1);
		}


		// Update the MeasuredEnergyStats information.
		if (uidEstimatedConsumptionMah != null) {
		double totalEstimatedConsumptionMah = 0.0;

		// Estimate total active radio power consumption since last mark.
		final long totalRadioTimeMs = mMobileRadioActiveTimer.getTimeSinceMarkLocked(
		elapsedRealtimeMs * 1000) / 1000;
		mMobileRadioActiveTimer.setMark(elapsedRealtimeMs);
		totalEstimatedConsumptionMah +=
		mMobileRadioPowerCalculator.calcPowerFromRadioActiveDurationMah(
		totalRadioTimeMs);

		// Estimate idle power consumption at each signal strength level
		final int numSignalStrengthLevels = mPhoneSignalStrengthsTimer.length;
		for (int strengthLevel = 0; strengthLevel < numSignalStrengthLevels;
		strengthLevel++) {
		final long strengthLevelDurationMs =
		mPhoneSignalStrengthsTimer[strengthLevel].getTimeSinceMarkLocked(
		elapsedRealtimeMs * 1000) / 1000;
		mPhoneSignalStrengthsTimer[strengthLevel].setMark(elapsedRealtimeMs);

		totalEstimatedConsumptionMah +=
		mMobileRadioPowerCalculator.calcIdlePowerAtSignalStrengthMah(
		strengthLevelDurationMs, strengthLevel);
		}

		// Estimate total active radio power consumption since last mark.
		final long scanTimeMs = mPhoneSignalScanningTimer.getTimeSinceMarkLocked(
		elapsedRealtimeMs * 1000) / 1000;
		mPhoneSignalScanningTimer.setMark(elapsedRealtimeMs);
		totalEstimatedConsumptionMah +=
		mMobileRadioPowerCalculator.calcScanTimePowerMah(scanTimeMs);

		distributeEnergyToUidsLocked(MeasuredEnergyStats.POWER_BUCKET_MOBILE_RADIO,
		consumedChargeUC, uidEstimatedConsumptionMah,
		totalEstimatedConsumptionMah);
		}

		mNetworkStatsPool.release(delta);
		delta = null;
		}
		@@ -12453,7 +12555,7 @@ public class BatteryStatsImpl extends BatteryStats {
		// 'double counted' and will simply exceed the realtime that elapsed.
		// If multidisplay becomes a reality, this is probably more reasonable than pooling.

		// On the first pass, collect total time since mark so that we can normalize power.
		// Collect total time since mark so that we can normalize power.
		final SparseDoubleArray fgTimeUsArray = new SparseDoubleArray();
		final long elapsedRealtimeUs = elapsedRealtimeMs * 1000;
		// TODO(b/175726779): Update and optimize the algorithm (e.g. avoid iterating over ALL uids)
		@@ -12467,6 +12569,50 @@ public class BatteryStatsImpl extends BatteryStats {
		distributeEnergyToUidsLocked(powerBucket, chargeUC, fgTimeUsArray, 0);
		}

		/**
		* Accumulate GNSS charge consumption and distribute it to the correct state and the apps.
		*
		* @param chargeUC amount of charge (microcoulombs) used by GNSS since this was last called.
		*/
		@GuardedBy("this")
		public void updateGnssMeasuredEnergyStatsLocked(long chargeUC, long elapsedRealtimeMs) {
		if (DEBUG_ENERGY) Slog.d(TAG, "Updating gnss stats: " + chargeUC);
		if (mGlobalMeasuredEnergyStats == null) {
		return;
		}

		if (!mOnBatteryInternal \|\| chargeUC <= 0) {
		// There's nothing further to update.
		return;
		}
		if (mIgnoreNextExternalStats) {
		// Although under ordinary resets we won't get here, and typically a new sync will
		// happen right after the reset, strictly speaking we need to set all mark times to now.
		final int uidStatsSize = mUidStats.size();
		for (int i = 0; i < uidStatsSize; i++) {
		final Uid uid = mUidStats.valueAt(i);
		uid.markGnssTimeUs(elapsedRealtimeMs);
		}
		return;
		}

		mGlobalMeasuredEnergyStats.updateStandardBucket(MeasuredEnergyStats.POWER_BUCKET_GNSS,
		chargeUC);

		// Collect the per uid time since mark so that we can normalize power.
		final SparseDoubleArray gnssTimeUsArray = new SparseDoubleArray();
		// TODO(b/175726779): Update and optimize the algorithm (e.g. avoid iterating over ALL uids)
		final int uidStatsSize = mUidStats.size();
		for (int i = 0; i < uidStatsSize; i++) {
		final Uid uid = mUidStats.valueAt(i);
		final long gnssTimeUs = uid.markGnssTimeUs(elapsedRealtimeMs);
		if (gnssTimeUs == 0) continue;
		gnssTimeUsArray.put(uid.getUid(), (double) gnssTimeUs);
		}
		distributeEnergyToUidsLocked(MeasuredEnergyStats.POWER_BUCKET_GNSS, chargeUC,
		gnssTimeUsArray, 0);
		}

		/**
		* Accumulate Custom power bucket charge, globally and for each app.
		*
		@@ -14394,6 +14540,9 @@ public class BatteryStatsImpl extends BatteryStats {
		if (supportedStandardBuckets[MeasuredEnergyStats.POWER_BUCKET_CPU]) {
		mCpuPowerCalculator = new CpuPowerCalculator(mPowerProfile);
		}
		if (supportedStandardBuckets[MeasuredEnergyStats.POWER_BUCKET_MOBILE_RADIO]) {
		mMobileRadioPowerCalculator = new MobileRadioPowerCalculator(mPowerProfile);
		}
		if (supportedStandardBuckets[MeasuredEnergyStats.POWER_BUCKET_WIFI]) {
		mWifiPowerCalculator = new WifiPowerCalculator(mPowerProfile);
		}

core/java/com/android/internal/os/GnssPowerCalculator.java

+24 −4

Original line number	Diff line number	Diff line
		@@ -61,7 +61,17 @@ public class GnssPowerCalculator extends PowerCalculator {
		long rawRealtimeUs, long rawUptimeUs, BatteryUsageStatsQuery query,
		double averageGnssPowerMa) {
		final long durationMs = computeDuration(u, rawRealtimeUs, BatteryStats.STATS_SINCE_CHARGED);
		double powerMah = computePower(durationMs, averageGnssPowerMa);

		final long measuredChargeUC = u.getGnssMeasuredBatteryConsumptionUC();
		final boolean isMeasuredPowerAvailable = !query.shouldForceUsePowerProfileModel()
		&& measuredChargeUC != BatteryStats.POWER_DATA_UNAVAILABLE;

		final double powerMah;
		if (isMeasuredPowerAvailable) {
		powerMah = uCtoMah(measuredChargeUC);
		} else {
		powerMah = computePower(durationMs, averageGnssPowerMa);
		}
		app.setUsageDurationMillis(BatteryConsumer.TIME_COMPONENT_GNSS, durationMs)
		.setConsumedPower(BatteryConsumer.POWER_COMPONENT_GNSS, powerMah);
		}
		@@ -73,15 +83,25 @@ public class GnssPowerCalculator extends PowerCalculator {
		for (int i = sippers.size() - 1; i >= 0; i--) {
		final BatterySipper app = sippers.get(i);
		if (app.drainType == BatterySipper.DrainType.APP) {
		calculateApp(app, app.uidObj, rawRealtimeUs, statsType, averageGnssPowerMa);
		calculateApp(app, app.uidObj, rawRealtimeUs, statsType, averageGnssPowerMa, false);
		}
		}
		}

		protected void calculateApp(BatterySipper app, BatteryStats.Uid u, long rawRealtimeUs,
		int statsType, double averageGnssPowerMa) {
		int statsType, double averageGnssPowerMa, boolean shouldForceUsePowerProfileModel) {
		final long durationMs = computeDuration(u, rawRealtimeUs, BatteryStats.STATS_SINCE_CHARGED);
		double powerMah = computePower(durationMs, averageGnssPowerMa);

		final long measuredChargeUC = u.getGnssMeasuredBatteryConsumptionUC();
		final boolean isMeasuredPowerAvailable = shouldForceUsePowerProfileModel
		&& measuredChargeUC != BatteryStats.POWER_DATA_UNAVAILABLE;

		final double powerMah;
		if (isMeasuredPowerAvailable) {
		powerMah = uCtoMah(measuredChargeUC);
		} else {
		powerMah = computePower(durationMs, averageGnssPowerMa);
		}

		app.gpsTimeMs = durationMs;
		app.gpsPowerMah = powerMah;

core/java/com/android/internal/os/MobileRadioPowerCalculator.java

+78 −24

Original line number	Diff line number	Diff line
		@@ -96,10 +96,12 @@ public class MobileRadioPowerCalculator extends PowerCalculator {
		for (int i = uidBatteryConsumerBuilders.size() - 1; i >= 0; i--) {
		final UidBatteryConsumer.Builder app = uidBatteryConsumerBuilders.valueAt(i);
		final BatteryStats.Uid uid = app.getBatteryStatsUid();
		calculateApp(app, uid, powerPerPacketMah, total);
		calculateApp(app, uid, powerPerPacketMah, total,
		query.shouldForceUsePowerProfileModel());
		}

		calculateRemaining(total, batteryStats, rawRealtimeUs);
		calculateRemaining(total, batteryStats, rawRealtimeUs,
		query.shouldForceUsePowerProfileModel());

		if (total.powerMah != 0) {
		builder.getOrCreateSystemBatteryConsumerBuilder(
		@@ -111,11 +113,13 @@ public class MobileRadioPowerCalculator extends PowerCalculator {
		}

		private void calculateApp(UidBatteryConsumer.Builder app, BatteryStats.Uid u,
		double powerPerPacketMah, PowerAndDuration total) {
		double powerPerPacketMah, PowerAndDuration total,
		boolean shouldForceUsePowerProfileModel) {
		final long radioActiveDurationMs = calculateDuration(u, BatteryStats.STATS_SINCE_CHARGED);
		total.totalAppDurationMs += radioActiveDurationMs;

		final double powerMah = calculatePower(u, powerPerPacketMah, radioActiveDurationMs);
		final double powerMah = calculatePower(u, powerPerPacketMah, radioActiveDurationMs,
		shouldForceUsePowerProfileModel);

		app.setUsageDurationMillis(BatteryConsumer.TIME_COMPONENT_MOBILE_RADIO,
		radioActiveDurationMs)
		@@ -132,12 +136,12 @@ public class MobileRadioPowerCalculator extends PowerCalculator {
		final BatterySipper app = sippers.get(i);
		if (app.drainType == BatterySipper.DrainType.APP) {
		final BatteryStats.Uid u = app.uidObj;
		calculateApp(app, u, statsType, mobilePowerPerPacket, total);
		calculateApp(app, u, statsType, mobilePowerPerPacket, total, false);
		}
		}

		BatterySipper radio = new BatterySipper(BatterySipper.DrainType.CELL, null, 0);
		calculateRemaining(total, batteryStats, rawRealtimeUs);
		calculateRemaining(total, batteryStats, rawRealtimeUs, false);
		if (total.powerMah != 0) {
		if (total.signalDurationMs != 0) {
		radio.noCoveragePercent =
		@@ -154,9 +158,12 @@ public class MobileRadioPowerCalculator extends PowerCalculator {
		}

		private void calculateApp(BatterySipper app, BatteryStats.Uid u, int statsType,
		double powerPerPacketMah, PowerAndDuration total) {
		double powerPerPacketMah, PowerAndDuration total,
		boolean shouldForceUsePowerProfileModel) {
		app.mobileActive = calculateDuration(u, statsType);
		app.mobileRadioPowerMah = calculatePower(u, powerPerPacketMah, app.mobileActive);

		app.mobileRadioPowerMah = calculatePower(u, powerPerPacketMah, app.mobileActive,
		shouldForceUsePowerProfileModel);
		total.totalAppDurationMs += app.mobileActive;

		// Add cost of mobile traffic.
		@@ -183,11 +190,19 @@ public class MobileRadioPowerCalculator extends PowerCalculator {
		}

		private double calculatePower(BatteryStats.Uid u, double powerPerPacketMah,
		long radioActiveDurationMs) {
		long radioActiveDurationMs, boolean shouldForceUsePowerProfileModel) {

		final long measuredChargeUC = u.getMobileRadioMeasuredBatteryConsumptionUC();
		final boolean isMeasuredPowerAvailable = !shouldForceUsePowerProfileModel
		&& measuredChargeUC != BatteryStats.POWER_DATA_UNAVAILABLE;
		if (isMeasuredPowerAvailable) {
		return uCtoMah(measuredChargeUC);
		}

		if (radioActiveDurationMs > 0) {
		// We are tracking when the radio is up, so can use the active time to
		// determine power use.
		return mActivePowerEstimator.calculatePower(radioActiveDurationMs);
		return calcPowerFromRadioActiveDurationMah(radioActiveDurationMs);
		} else {
		// We are not tracking when the radio is up, so must approximate power use
		// based on the number of packets.
		@@ -202,18 +217,29 @@ public class MobileRadioPowerCalculator extends PowerCalculator {
		}

		private void calculateRemaining(MobileRadioPowerCalculator.PowerAndDuration total,
		BatteryStats batteryStats, long rawRealtimeUs) {
		BatteryStats batteryStats, long rawRealtimeUs,
		boolean shouldForceUsePowerProfileModel) {
		long signalTimeMs = 0;
		double powerMah = 0;

		final long measuredChargeUC = batteryStats.getMobileRadioMeasuredBatteryConsumptionUC();
		final boolean isMeasuredPowerAvailable = !shouldForceUsePowerProfileModel
		&& measuredChargeUC != BatteryStats.POWER_DATA_UNAVAILABLE;
		if (isMeasuredPowerAvailable) {
		powerMah = uCtoMah(measuredChargeUC);
		}

		for (int i = 0; i < NUM_SIGNAL_STRENGTH_LEVELS; i++) {
		long strengthTimeMs = batteryStats.getPhoneSignalStrengthTime(i, rawRealtimeUs,
		BatteryStats.STATS_SINCE_CHARGED) / 1000;
		final double p = mIdlePowerEstimators[i].calculatePower(strengthTimeMs);
		if (!isMeasuredPowerAvailable) {
		final double p = calcIdlePowerAtSignalStrengthMah(strengthTimeMs, i);
		if (DEBUG && p != 0) {
		Log.d(TAG, "Cell strength #" + i + ": time=" + strengthTimeMs + " power="
		+ formatCharge(p));
		}
		powerMah += p;
		}
		signalTimeMs += strengthTimeMs;
		if (i == 0) {
		total.noCoverageDurationMs = strengthTimeMs;
		@@ -222,29 +248,57 @@ public class MobileRadioPowerCalculator extends PowerCalculator {

		final long scanningTimeMs = batteryStats.getPhoneSignalScanningTime(rawRealtimeUs,
		BatteryStats.STATS_SINCE_CHARGED) / 1000;
		final double p = mScanPowerEstimator.calculatePower(scanningTimeMs);
		if (DEBUG && p != 0) {
		Log.d(TAG, "Cell radio scanning: time=" + scanningTimeMs + " power=" + formatCharge(p));
		}
		powerMah += p;
		long radioActiveTimeMs = batteryStats.getMobileRadioActiveTime(rawRealtimeUs,
		BatteryStats.STATS_SINCE_CHARGED) / 1000;
		long remainingActiveTimeMs = radioActiveTimeMs - total.totalAppDurationMs;

		if (!isMeasuredPowerAvailable) {
		final double p = calcScanTimePowerMah(scanningTimeMs);
		if (DEBUG && p != 0) {
		Log.d(TAG, "Cell radio scanning: time=" + scanningTimeMs + " power=" + formatCharge(
		p));
		}
		powerMah += p;

		if (remainingActiveTimeMs > 0) {
		powerMah += mActivePowerEstimator.calculatePower(remainingActiveTimeMs);
		powerMah += calcPowerFromRadioActiveDurationMah(remainingActiveTimeMs);
		}
		}
		total.durationMs = radioActiveTimeMs;
		total.powerMah = powerMah;
		total.signalDurationMs = signalTimeMs;
		}

		/**
		* Calculates active radio power consumption (in milliamp-hours) from active radio duration.
		*/
		public double calcPowerFromRadioActiveDurationMah(long radioActiveDurationMs) {
		return mActivePowerEstimator.calculatePower(radioActiveDurationMs);
		}

		/**
		* Calculates idle radio power consumption (in milliamp-hours) for time spent at a cell signal
		* strength level.
		* see {@link CellSignalStrength#getNumSignalStrengthLevels()}
		*/
		public double calcIdlePowerAtSignalStrengthMah(long strengthTimeMs, int strengthLevel) {
		return mIdlePowerEstimators[strengthLevel].calculatePower(strengthTimeMs);
		}

		/**
		* Calculates radio scan power consumption (in milliamp-hours) from scan time.
		*/
		public double calcScanTimePowerMah(long scanningTimeMs) {
		return mScanPowerEstimator.calculatePower(scanningTimeMs);
		}

		/**
		* Return estimated power (in mAh) of sending or receiving a packet with the mobile radio.
		*/
		private double getMobilePowerPerPacket(BatteryStats stats, long rawRealtimeUs, int statsType) {
		final long radioDataUptimeMs =
		stats.getMobileRadioActiveTime(rawRealtimeUs, statsType) / 1000;
		final double mobilePower = mActivePowerEstimator.calculatePower(radioDataUptimeMs);
		final double mobilePower = calcPowerFromRadioActiveDurationMah(radioDataUptimeMs);

		final long mobileRx = stats.getNetworkActivityPackets(BatteryStats.NETWORK_MOBILE_RX_DATA,
		statsType);

core/java/com/android/internal/power/MeasuredEnergyStats.java

+5 −1

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