Log screen dim event (6c18bcf9) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/power/Notifier.java

+3 −1

Original line number	Diff line number	Diff line
		@@ -206,7 +206,6 @@ public class Notifier {
		mPolicy = policy;
		mFaceDownDetector = faceDownDetector;
		mScreenUndimDetector = screenUndimDetector;
		mWakefulnessSessionObserver = new WakefulnessSessionObserver(mContext, null);
		mActivityManagerInternal = LocalServices.getService(ActivityManagerInternal.class);
		mInputManagerInternal = LocalServices.getService(InputManagerInternal.class);
		mInputMethodManagerInternal = LocalServices.getService(InputMethodManagerInternal.class);
		@@ -214,6 +213,7 @@ public class Notifier {
		mDisplayManagerInternal = LocalServices.getService(DisplayManagerInternal.class);
		mTrustManager = mContext.getSystemService(TrustManager.class);
		mVibrator = mContext.getSystemService(Vibrator.class);
		mWakefulnessSessionObserver = new WakefulnessSessionObserver(mContext, null);

		mHandler = new NotifierHandler(looper);
		mBackgroundExecutor = backgroundExecutor;
		@@ -813,6 +813,8 @@ public class Notifier {
		if (DEBUG) {
		Slog.d(TAG, "onScreenPolicyUpdate: newPolicy=" + newPolicy);
		}
		mWakefulnessSessionObserver.onScreenPolicyUpdate(
		SystemClock.uptimeMillis(), displayGroupId, newPolicy);

		synchronized (mLock) {
		Message msg = mHandler.obtainMessage(MSG_SCREEN_POLICY);

services/core/java/com/android/server/power/WakefulnessSessionObserver.java

+276 −9

Original line number	Diff line number	Diff line
		@@ -16,8 +16,11 @@

		package com.android.server.power;

		import static android.hardware.display.DisplayManagerInternal.DisplayPowerRequest.POLICY_BRIGHT;
		import static android.hardware.display.DisplayManagerInternal.DisplayPowerRequest.POLICY_DIM;
		import static android.os.PowerManager.USER_ACTIVITY_EVENT_OTHER;
		import static android.os.PowerManagerInternal.isInteractive;
		import static android.view.Display.DEFAULT_DISPLAY;

		import static com.android.server.power.PowerManagerService.DEFAULT_SCREEN_OFF_TIMEOUT;
		import static com.android.server.power.ScreenTimeoutOverridePolicy.RELEASE_REASON_NON_INTERACTIVE;
		@@ -34,6 +37,9 @@ import android.app.ActivityManager;
		import android.app.SynchronousUserSwitchObserver;
		import android.content.Context;
		import android.database.ContentObserver;
		import android.hardware.display.DisplayManager;
		import android.hardware.display.DisplayManagerInternal;
		import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest;
		import android.os.Handler;
		import android.os.PowerManager;
		import android.os.PowerManagerInternal;
		@@ -44,9 +50,13 @@ import android.provider.Settings;
		import android.util.IndentingPrintWriter;
		import android.util.SparseArray;
		import android.view.Display;
		import android.view.DisplayAddress;
		import android.view.DisplayInfo;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.os.BackgroundThread;
		import com.android.internal.util.FrameworkStatsLog;
		import com.android.server.LocalServices;

		import java.io.PrintWriter;
		import java.lang.annotation.Retention;
		@@ -117,9 +127,42 @@ public class WakefulnessSessionObserver {
		@Retention(RetentionPolicy.SOURCE)
		private @interface OverrideOutcome {}

		private static final int DEFAULT_USER_ACTIVITY = USER_ACTIVITY_EVENT_OTHER;
		private static final long TIMEOUT_USER_INITIATED_REVERT_THRESHOLD_MILLIS = 5000L;
		private static final int POLICY_REASON_UNKNOWN = FrameworkStatsLog
		.SCREEN_DIM_REPORTED__POLICY_REASON__UNKNOWN;
		@VisibleForTesting
		protected static final int POLICY_REASON_OFF_TIMEOUT = FrameworkStatsLog
		.SCREEN_DIM_REPORTED__POLICY_REASON__OFF_TIMEOUT;
		@VisibleForTesting
		protected static final int POLICY_REASON_OFF_POWER_BUTTON = FrameworkStatsLog
		.SCREEN_DIM_REPORTED__POLICY_REASON__OFF_POWER_BUTTON;
		@VisibleForTesting
		protected static final int POLICY_REASON_BRIGHT_UNDIM = FrameworkStatsLog
		.SCREEN_DIM_REPORTED__POLICY_REASON__BRIGHT_UNDIM;
		@VisibleForTesting
		protected static final int POLICY_REASON_BRIGHT_INITIATED_REVERT = FrameworkStatsLog
		.SCREEN_DIM_REPORTED__POLICY_REASON__BRIGHT_INITIATED_REVERT;

		/**
		* Policy Reason
		* {@link android.os.statsd.power.ScreenDimReported.PolicyReason}.
		*/
		@IntDef(prefix = {"POLICY_REASON_"}, value = {
		POLICY_REASON_UNKNOWN,
		POLICY_REASON_OFF_TIMEOUT,
		POLICY_REASON_OFF_POWER_BUTTON,
		POLICY_REASON_BRIGHT_UNDIM,
		POLICY_REASON_BRIGHT_INITIATED_REVERT
		})
		@Retention(RetentionPolicy.SOURCE)
		private @interface PolicyReason {}

		@VisibleForTesting protected static final int DEFAULT_USER_ACTIVITY = USER_ACTIVITY_EVENT_OTHER;
		private static final long USER_INITIATED_REVERT_THRESHOLD_MILLIS = 5000L;
		private static final long SEND_OVERRIDE_TIMEOUT_LOG_THRESHOLD_MILLIS = 1000L;
		@VisibleForTesting
		protected static final long SCREEN_POLICY_DIM_POWER_OFF_BRIGHT_THRESHOLD_MILLIS = 500L;

		@VisibleForTesting protected static final Object HANDLER_TOKEN = new Object();

		private Context mContext;
		private int mScreenOffTimeoutMs;
		@@ -130,17 +173,24 @@ public class WakefulnessSessionObserver {
		protected WakefulnessSessionFrameworkStatsLogger mWakefulnessSessionFrameworkStatsLogger;
		private final Clock mClock;
		private final Object mLock = new Object();
		private final Handler mHandler;

		public WakefulnessSessionObserver(Context context, Injector injector) {
		private DisplayManagerInternal mDisplayManagerInternal;
		private int mPhysicalDisplayPortIdForDefaultDisplay;

		public WakefulnessSessionObserver(
		Context context, Injector injector) {
		if (injector == null) {
		injector = new Injector();
		}

		mContext = context;
		mDisplayManagerInternal = injector.getDisplayManagerInternal();
		mWakefulnessSessionFrameworkStatsLogger = injector
		.getWakefulnessSessionFrameworkStatsLogger();
		mClock = injector.getClock();
		updateSettingScreenOffTimeout(context);
		mHandler = injector.getHandler();
		updateSettingScreenOffTimeout(mContext);

		try {
		final UserSwitchObserver observer = new UserSwitchObserver();
		@@ -164,6 +214,31 @@ public class WakefulnessSessionObserver {
		},
		UserHandle.USER_ALL);

		mPhysicalDisplayPortIdForDefaultDisplay = getPhysicalDisplayPortId(DEFAULT_DISPLAY);
		DisplayManager displayManager = mContext.getSystemService(DisplayManager.class);
		if (displayManager != null) {
		displayManager.registerDisplayListener(
		new DisplayManager.DisplayListener() {
		@Override
		public void onDisplayChanged(int displayId) {
		if (displayId == DEFAULT_DISPLAY) {
		mPhysicalDisplayPortIdForDefaultDisplay = getPhysicalDisplayPortId(
		DEFAULT_DISPLAY);
		}
		}

		@Override
		public void onDisplayAdded(int i) {
		}

		@Override
		public void onDisplayRemoved(int i) {
		}
		},
		mHandler,
		DisplayManager.EVENT_FLAG_DISPLAY_CHANGED);
		}

		mPowerGroups.append(
		Display.DEFAULT_DISPLAY_GROUP,
		new WakefulnessSessionPowerGroup(Display.DEFAULT_DISPLAY_GROUP));
		@@ -185,6 +260,20 @@ public class WakefulnessSessionObserver {
		mPowerGroups.get(powerGroupId).notifyUserActivity(eventTime, event);
		}

		/**
		* Track the screen policy
		*
		* @param eventTime policy changing time, in uptime millis.
		* @param powerGroupId Power Group Id for this screen policy
		* @param newPolicy Screen Policy defined in {@link DisplayPowerRequest}
		*/
		public void onScreenPolicyUpdate(long eventTime, int powerGroupId, int newPolicy) {
		if (!mPowerGroups.contains(powerGroupId)) {
		mPowerGroups.append(powerGroupId, new WakefulnessSessionPowerGroup(powerGroupId));
		}
		mPowerGroups.get(powerGroupId).onScreenPolicyUpdate(eventTime, newPolicy);
		}

		/**
		* Track the system wakefulness
		*
		@@ -267,6 +356,14 @@ public class WakefulnessSessionObserver {
		}
		}

		private int getPhysicalDisplayPortId(int displayId) {
		if (mDisplayManagerInternal == null) {
		return -1;
		}
		DisplayInfo display = mDisplayManagerInternal.getDisplayInfo(displayId);
		return ((DisplayAddress.Physical) display.address).getPort();
		}

		private int getScreenOffTimeout() {
		synchronized (mLock) {
		return mScreenOffTimeoutMs;
		@@ -277,10 +374,9 @@ public class WakefulnessSessionObserver {
		@VisibleForTesting
		protected class WakefulnessSessionPowerGroup {
		private static final long TIMEOUT_OFF_RESET_TIMESTAMP = -1;

		private int mPowerGroupId;
		private int mCurrentWakefulness;
		private boolean mIsInteractive = false;
		@VisibleForTesting protected boolean mIsInteractive = false;
		// state on start timestamp: will be used in state off to calculate the duration of state on
		private long mInteractiveStateOnStartTimestamp;
		@VisibleForTesting
		@@ -295,6 +391,17 @@ public class WakefulnessSessionObserver {
		private int mTimeoutOverrideWakeLockCounter = 0;
		// The timestamp when Override Timeout is set to false
		private @ScreenTimeoutOverridePolicy.ReleaseReason int mTimeoutOverrideReleaseReason;
		// The timestamp when current screen policy is set
		private long mCurrentScreenPolicyTimestamp;
		// current screen policy
		private int mCurrentScreenPolicy;
		// The screen policy before the current one
		private int mPrevScreenPolicy;
		// The previous screen policy duration
		private int mPrevScreenPolicyDurationMs;
		// The past dim duration
		@VisibleForTesting protected int mPastDimDurationMs;
		private long mInteractiveOffTimestamp;
		// The timestamp when state off by timeout occurs
		// will set TIMEOUT_OFF_RESET_TIMESTAMP if state on or state off by power button
		private long mTimeoutOffTimestamp;
		@@ -307,6 +414,10 @@ public class WakefulnessSessionObserver {
		mPrevUserActivityEvent = DEFAULT_USER_ACTIVITY;
		mPrevUserActivityTimestamp = -1;
		mPowerGroupId = powerGroupId;
		mCurrentScreenPolicy = mPrevScreenPolicy = POLICY_BRIGHT;
		mCurrentScreenPolicyTimestamp = 0;
		mPrevScreenPolicyDurationMs = 0;
		mPastDimDurationMs = 0;
		}

		public void notifyUserActivity(long eventTime, @PowerManager.UserActivityEvent int event) {
		@@ -320,6 +431,21 @@ public class WakefulnessSessionObserver {
		mCurrentUserActivityTimestamp = eventTime;
		}

		public void onScreenPolicyUpdate(long eventTime, int newPolicy) {
		if (newPolicy == mCurrentScreenPolicy) {
		return;
		}

		if (newPolicy == POLICY_BRIGHT) {
		checkAndLogDimIfQualified(POLICY_REASON_BRIGHT_UNDIM, eventTime);
		}

		mPrevScreenPolicy = mCurrentScreenPolicy;
		mCurrentScreenPolicy = newPolicy;
		mPrevScreenPolicyDurationMs = (int) (eventTime - mCurrentScreenPolicyTimestamp);
		mCurrentScreenPolicyTimestamp = eventTime;
		}

		public void onWakefulnessChangeStarted(int wakefulness, int changeReason, long eventTime) {
		mCurrentWakefulness = wakefulness;
		if (mIsInteractive == isInteractive(wakefulness)) {
		@@ -331,10 +457,10 @@ public class WakefulnessSessionObserver {
		mInteractiveStateOnStartTimestamp = eventTime;

		// Log the outcome of screen timeout override (USER INITIATED REVERT),
		// when user initiates to revert the screen off state in a short period.
		// when user initiates to revert the off state in a short period.
		if (mTimeoutOffTimestamp != TIMEOUT_OFF_RESET_TIMESTAMP) {
		long offToOnDurationMs = eventTime - mTimeoutOffTimestamp;
		if (offToOnDurationMs < TIMEOUT_USER_INITIATED_REVERT_THRESHOLD_MILLIS) {
		long timeoutOffToOnDurationMs = eventTime - mTimeoutOffTimestamp;
		if (timeoutOffToOnDurationMs < USER_INITIATED_REVERT_THRESHOLD_MILLIS) {
		mWakefulnessSessionFrameworkStatsLogger.logTimeoutOverrideEvent(
		mPowerGroupId,
		OVERRIDE_OUTCOME_TIMEOUT_USER_INITIATED_REVERT,
		@@ -344,11 +470,15 @@ public class WakefulnessSessionObserver {
		}
		mTimeoutOffTimestamp = TIMEOUT_OFF_RESET_TIMESTAMP;
		}

		checkAndLogDimIfQualified(POLICY_REASON_BRIGHT_INITIATED_REVERT, eventTime);

		} else {
		int lastUserActivity = mCurrentUserActivityEvent;
		long lastUserActivityDurationMs = eventTime - mCurrentUserActivityTimestamp;
		@OffReason int interactiveStateOffReason = OFF_REASON_UNKNOWN;
		int reducedInteractiveStateOnDurationMs = 0;
		mInteractiveOffTimestamp = eventTime;

		if (changeReason == PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON) {
		interactiveStateOffReason = OFF_REASON_POWER_BUTTON;
		@@ -369,6 +499,9 @@ public class WakefulnessSessionObserver {
		mSendOverrideTimeoutLogTimestamp = eventTime;
		mTimeoutOverrideReleaseReason = RELEASE_REASON_UNKNOWN; // reset the reason
		}

		checkAndLogDimIfQualified(POLICY_REASON_OFF_POWER_BUTTON, eventTime);

		} else if (changeReason == PowerManager.GO_TO_SLEEP_REASON_TIMEOUT) {
		// Interactive Off reason is timeout
		interactiveStateOffReason = OFF_REASON_TIMEOUT;
		@@ -393,6 +526,8 @@ public class WakefulnessSessionObserver {
		// state instantly
		mTimeoutOffTimestamp = eventTime;
		}

		checkAndLogDimIfQualified(POLICY_REASON_OFF_TIMEOUT, eventTime);
		}

		long interactiveStateOnDurationMs =
		@@ -462,6 +597,106 @@ public class WakefulnessSessionObserver {
		}
		}

		private void checkAndLogDimIfQualified(
		@PolicyReason int reasonToBeChecked, long eventTime) {
		// Only log dim event when DEFAULT_DISPLAY
		if (mPowerGroupId != DEFAULT_DISPLAY) {
		return;
		}

		int dimDurationMs = 0;
		int lastUserActivity = mCurrentUserActivityEvent;
		int lastUserActivityDurationMs = (int) (eventTime - mCurrentUserActivityTimestamp);
		switch (reasonToBeChecked) {
		case POLICY_REASON_OFF_TIMEOUT: {
		// The policy ordering:
		// (1) --DIM--OFF/DOZE->\| or (2) --DIM->\| because OFF/DOZE hasn't been updated.
		dimDurationMs = (int) (eventTime - mCurrentScreenPolicyTimestamp); //(1)--DIM->\|
		if (mPrevScreenPolicy == POLICY_DIM) { // for (2) --DIM--OFF/DOZE->\|
		dimDurationMs = mPrevScreenPolicyDurationMs;
		}
		mWakefulnessSessionFrameworkStatsLogger.logDimEvent(
		mPhysicalDisplayPortIdForDefaultDisplay,
		reasonToBeChecked,
		lastUserActivity,
		lastUserActivityDurationMs,
		dimDurationMs,
		mScreenOffTimeoutMs);
		mPastDimDurationMs = dimDurationMs;
		return;
		}
		case POLICY_REASON_OFF_POWER_BUTTON: {
		// Power Off will be triggered by USER_ACTIVITY_EVENT_BUTTON
		// The metric wants to record the previous activity before EVENT_BUTTON
		lastUserActivity = mPrevUserActivityEvent;
		lastUserActivityDurationMs = (int) (eventTime - mPrevUserActivityTimestamp);
		// the policy ordering:
		// (1) ---BRIGHT->\| or (2) ---DIM->\| because OFF/DOZE hasn't been updated
		dimDurationMs = 0; // for (1) ---BRIGHT->\| which doesn't have dim (no need log)
		if (mCurrentScreenPolicy == POLICY_DIM) { // for (2) ---DIM->\|
		dimDurationMs = (int) (eventTime - mCurrentScreenPolicyTimestamp);
		mWakefulnessSessionFrameworkStatsLogger.logDimEvent(
		mPhysicalDisplayPortIdForDefaultDisplay,
		reasonToBeChecked,
		lastUserActivity,
		lastUserActivityDurationMs,
		dimDurationMs,
		mScreenOffTimeoutMs);
		mHandler.removeCallbacksAndMessages(HANDLER_TOKEN);
		}

		mPastDimDurationMs = dimDurationMs;
		return;
		}
		case POLICY_REASON_BRIGHT_UNDIM: {
		// Has checked the latest screen policy is POLICY_BRIGHT in onScreenPolicyUpdate
		if (mCurrentScreenPolicy == POLICY_DIM) { // policy ordering: --DIM--BRIGHT->\|
		int savedDimDurationMs = (int) (eventTime - mCurrentScreenPolicyTimestamp);
		int savedLastUserActivity = lastUserActivity;
		int savedLastUserActivityDurationMs = lastUserActivityDurationMs;

		// For the undim case --DIM--BRIGHT->\|, it needs wait 500 ms to
		// differentiate between "power button off" case, which is
		// --DIM--BRIGHT(<500ms)--OFF/DOZE->\|
		// [Method] Wait 500 ms to see whether triggers power button off or not.
		// [Reason] We got --DIM--BRIGHT->\|. However, if BRIGHT is so short (<500ms)
		// and follows OFF/DOZE, it represents power button off, not undim.
		// It is normal to have a short BRIGHT for power button off because
		// the system need to play an animation before off.
		mHandler.postDelayed(() -> {
		mWakefulnessSessionFrameworkStatsLogger.logDimEvent(
		mPhysicalDisplayPortIdForDefaultDisplay,
		reasonToBeChecked,
		savedLastUserActivity,
		savedLastUserActivityDurationMs,
		savedDimDurationMs,
		mScreenOffTimeoutMs);
		mPastDimDurationMs = savedDimDurationMs;
		}, HANDLER_TOKEN, SCREEN_POLICY_DIM_POWER_OFF_BRIGHT_THRESHOLD_MILLIS);
		}
		return;
		}
		case POLICY_REASON_BRIGHT_INITIATED_REVERT: {
		// the dimDuration in BRIGHT_INITIATE_REVERT is for the dim duration before
		// screen interactive off (mPastDimDurationMs)
		long offToOnDurationMs = eventTime - mInteractiveOffTimestamp;
		if (mPastDimDurationMs > 0
		&& offToOnDurationMs < USER_INITIATED_REVERT_THRESHOLD_MILLIS) {
		mWakefulnessSessionFrameworkStatsLogger.logDimEvent(
		mPhysicalDisplayPortIdForDefaultDisplay,
		reasonToBeChecked,
		lastUserActivity,
		lastUserActivityDurationMs,
		mPastDimDurationMs,
		mScreenOffTimeoutMs);
		}
		return;
		}
		default:
		return;
		}
		}

		void dump(IndentingPrintWriter writer) {
		final long now = mClock.uptimeMillis();

		@@ -475,6 +710,12 @@ public class WakefulnessSessionObserver {
		final long prevUserActivityDurationMs = now - mPrevUserActivityTimestamp;
		writer.println("previous user activity duration: " + prevUserActivityDurationMs);
		writer.println("is in override timeout: " + isInOverrideTimeout());
		writer.println("mIsInteractive: " + mIsInteractive);
		writer.println("current screen policy: " + mCurrentScreenPolicy);
		final long currentScreenPolicyDurationMs = now - mCurrentScreenPolicyTimestamp;
		writer.println("current screen policy duration: " + currentScreenPolicyDurationMs);
		writer.println("previous screen policy: " + mPrevScreenPolicy);
		writer.println("past screen policy duration: " + mPrevScreenPolicyDurationMs);
		writer.decreaseIndent();
		}
		}
		@@ -512,6 +753,24 @@ public class WakefulnessSessionObserver {
		(long) defaultTimeoutMs);
		}

		public void logDimEvent(
		int physicalDisplayPortId,
		@PolicyReason int policyReason,
		@PowerManager.UserActivityEvent int userActivityEvent,
		int lastUserActivityEventDurationMs,
		int dimDurationMs,
		int defaultTimeoutMs) {
		int logUserActivityEvent = convertToLogUserActivityEvent(userActivityEvent);
		FrameworkStatsLog.write(
		FrameworkStatsLog.SCREEN_DIM_REPORTED,
		physicalDisplayPortId,
		policyReason,
		logUserActivityEvent,
		lastUserActivityEventDurationMs,
		dimDurationMs,
		defaultTimeoutMs);
		}

		private static final int USER_ACTIVITY_OTHER = FrameworkStatsLog
		.SCREEN_INTERACTIVE_SESSION_REPORTED__LAST_USER_ACTIVITY_EVENT__OTHER;

		@@ -591,5 +850,13 @@ public class WakefulnessSessionObserver {
		Clock getClock() {
		return SystemClock::uptimeMillis;
		}

		Handler getHandler() {
		return BackgroundThread.getHandler();
		}

		DisplayManagerInternal getDisplayManagerInternal() {
		return LocalServices.getService(DisplayManagerInternal.class);
		}
		}
		}