Add support for Fine Granularity PowerMonitors (fabf8e4c) · Commits · e / os / android_frameworks_base

core/api/system-current.txt

+6 −0

Original line number	Diff line number	Diff line
		@@ -11561,6 +11561,12 @@ package android.os {
		method @RequiresPermission(android.Manifest.permission.SET_LOW_POWER_STANDBY_PORTS) public void release();
		}

		@FlaggedApi("com.android.server.power.optimization.power_monitor_api") public final class PowerMonitorReadings {
		method @FlaggedApi("android.permission.flags.fine_power_monitor_permission") public int getGranularity();
		field @FlaggedApi("android.permission.flags.fine_power_monitor_permission") public static final int GRANULARITY_FINE = 1; // 0x1
		field @FlaggedApi("android.permission.flags.fine_power_monitor_permission") public static final int GRANULARITY_UNSPECIFIED = 0; // 0x0
		}

		@Deprecated public class PowerWhitelistManager {
		method @Deprecated @RequiresPermission(android.Manifest.permission.DEVICE_POWER) public void addToWhitelist(@NonNull String);
		method @Deprecated @RequiresPermission(android.Manifest.permission.DEVICE_POWER) public void addToWhitelist(@NonNull java.util.List<java.lang.String>);

core/java/android/os/IPowerStatsService.aidl

+2 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,8 @@ interface IPowerStatsService {
		const String KEY_ENERGY = "energy";
		/** @hide */
		const String KEY_TIMESTAMPS = "timestamps";
		/** @hide */
		const String KEY_GRANULARITY = "granularity";

		/** @hide */
		const int RESULT_SUCCESS = 0;

core/java/android/os/PowerMonitorReadings.java

+51 −1

Original line number	Diff line number	Diff line
		@@ -18,8 +18,12 @@ package android.os;

		import android.annotation.ElapsedRealtimeLong;
		import android.annotation.FlaggedApi;
		import android.annotation.IntDef;
		import android.annotation.NonNull;
		import android.annotation.SystemApi;

		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.util.Arrays;
		import java.util.Comparator;

		@@ -38,6 +42,37 @@ public final class PowerMonitorReadings {
		@NonNull
		private final long[] mTimestampsMs;

		/**
		* PowerMonitorReadings have the default level of granularity, which may be coarse or fine
		* as determined by the implementation.
		* @hide
		*/
		@FlaggedApi(android.permission.flags.Flags.FLAG_FINE_POWER_MONITOR_PERMISSION)
		@SystemApi
		public static final int GRANULARITY_UNSPECIFIED = 0;

		/**
		* PowerMonitorReadings have a high level of granularity. This level of granularity is
		* provided to applications that have the
		* {@link android.Manifest.permission#ACCESS_FINE_POWER_MONITORS} permission.
		*
		* @hide
		*/
		@FlaggedApi(android.permission.flags.Flags.FLAG_FINE_POWER_MONITOR_PERMISSION)
		@SystemApi
		public static final int GRANULARITY_FINE = 1;

		/** @hide */
		@IntDef(prefix = {"GRANULARITY_"}, value = {
		GRANULARITY_UNSPECIFIED,
		GRANULARITY_FINE
		})
		@Retention(RetentionPolicy.SOURCE)
		public @interface PowerMonitorGranularity {}

		@PowerMonitorGranularity
		private final int mGranularity;

		private static final Comparator<PowerMonitor> POWER_MONITOR_COMPARATOR =
		Comparator.comparingInt(pm -> pm.index);

		@@ -46,10 +81,12 @@ public final class PowerMonitorReadings {
		* @hide
		*/
		public PowerMonitorReadings(@NonNull PowerMonitor[] powerMonitors,
		@NonNull long[] energyUws, @NonNull long[] timestampsMs) {
		@NonNull long[] energyUws, @NonNull long[] timestampsMs,
		@PowerMonitorGranularity int granularity) {
		mPowerMonitors = powerMonitors;
		mEnergyUws = energyUws;
		mTimestampsMs = timestampsMs;
		mGranularity = granularity;
		}

		/**
		@@ -79,6 +116,19 @@ public final class PowerMonitorReadings {
		return 0;
		}

		/**
		* Returns the granularity level of the results, which refers to the maximum age of the
		* power monitor readings, {@link #GRANULARITY_FINE} indicating the highest level
		* of freshness supported by the service implementation.
		* @hide
		*/
		@FlaggedApi(android.permission.flags.Flags.FLAG_FINE_POWER_MONITOR_PERMISSION)
		@SystemApi
		@PowerMonitorGranularity
		public int getGranularity() {
		return mGranularity;
		}

		@Override
		public String toString() {
		StringBuilder sb = new StringBuilder();

core/java/android/os/health/SystemHealthManager.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -428,7 +428,8 @@ public class SystemHealthManager {
		if (resultCode == IPowerStatsService.RESULT_SUCCESS) {
		PowerMonitorReadings result = new PowerMonitorReadings(powerMonitorsArray,
		resultData.getLongArray(IPowerStatsService.KEY_ENERGY),
		resultData.getLongArray(IPowerStatsService.KEY_TIMESTAMPS));
		resultData.getLongArray(IPowerStatsService.KEY_TIMESTAMPS),
		resultData.getInt(IPowerStatsService.KEY_GRANULARITY));
		if (executor != null) {
		executor.execute(() -> onResult.onResult(result));
		} else {

data/etc/privapp-permissions-platform.xml

+1 −0

Original line number	Diff line number	Diff line
		@@ -264,6 +264,7 @@ applications that come with the platform
		<!-- Needed for test only -->
		<permission name="android.permission.BATTERY_PREDICTION"/>
		<permission name="android.permission.BATTERY_STATS"/>
		<permission name="android.permission.ACCESS_FINE_POWER_MONITORS" />
		<!-- BLUETOOTH_PRIVILEGED is needed for test only -->
		<permission name="android.permission.BLUETOOTH_PRIVILEGED"/>
		<permission name="android.permission.BIND_APPWIDGET"/>