Merge "Trigger power hints for activity launch" into nyc-mr1-dev

core/java/android/os/PowerManagerInternal.java

@@ -57,14 +57,19 @@ public abstract class PowerManagerInternal {
     /**
      * Power hint:
      * Interaction: The user is interacting with the device. The corresponding data field must be
-     * the expected duration of the fling, or 0 if unknown.
+     * the expected duration of the interaction, or 0 if unknown.
      *
-     * Sustained Performance Mode: Enable/Disables Sustained Performance Mode.
+     * Sustained Performance Mode: The corresponding data field must be Enable/Disable
+     * Sustained Performance Mode.
+     *
+     * Launch: This is specific for activity launching. The corresponding data field must be
+     * the expected duration of the required boost, or 0 if unknown.
      *
      * These must be kept in sync with the values in hardware/libhardware/include/hardware/power.h
      */
     public static final int POWER_HINT_INTERACTION = 2;
     public static final int POWER_HINT_SUSTAINED_PERFORMANCE_MODE = 6;
+    public static final int POWER_HINT_LAUNCH = 8;
 
     public static String wakefulnessToString(int wakefulness) {
         switch (wakefulness) {

services/core/java/com/android/server/am/ActivityStackSupervisor.java

@@ -4416,6 +4416,7 @@ public final class ActivityStackSupervisor implements DisplayListener {
         // Work Challenge is present) let startActivityInPackage handle the intercepting.
         if (!mService.mUserController.shouldConfirmCredentials(task.userId)
                 && task.getRootActivity() != null) {
+            mService.mActivityStarter.sendPowerHintForLaunchIfNeeded(true /* forceSend */);
             mActivityMetricsLogger.notifyActivityLaunching();
             mService.moveTaskToFrontLocked(task.taskId, 0, bOptions);
             mActivityMetricsLogger.notifyActivityLaunched(ActivityManager.START_TASK_TO_FRONT,

services/core/java/com/android/server/am/ActivityStarter.java

@@ -102,6 +102,7 @@ import android.os.Binder;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.IBinder;
+import android.os.PowerManagerInternal;
 import android.os.RemoteException;
 import android.os.SystemClock;
 import android.os.UserHandle;
@@ -172,6 +173,7 @@ class ActivityStarter {
     private boolean mNoAnimation;
     private boolean mKeepCurTransition;
     private boolean mAvoidMoveToFront;
+    private boolean mPowerHintSent;
 
     private IVoiceInteractionSession mVoiceSession;
     private IVoiceInteractor mVoiceInteractor;
@@ -210,6 +212,8 @@ class ActivityStarter {
         mKeepCurTransition = false;
         mAvoidMoveToFront = false;
 
+        mPowerHintSent = false;
+
         mVoiceSession = null;
         mVoiceInteractor = null;
     }
@@ -942,6 +946,20 @@ class ActivityStarter {
         return START_SUCCESS;
     }
 
+    void sendPowerHintForLaunchIfNeeded(boolean forceSend) {
+        // Trigger launch power hint if activity is not in the current task
+        final ActivityStack focusStack = mSupervisor.getFocusedStack();
+        final ActivityRecord curTop = (focusStack == null)
+            ? null : focusStack.topRunningNonDelayedActivityLocked(mNotTop);
+        if ((forceSend || (!mPowerHintSent && curTop != null &&
+                curTop.task != null && mStartActivity != null &&
+                curTop.task != mStartActivity.task )) &&
+                mService.mLocalPowerManager != null) {
+            mService.mLocalPowerManager.powerHint(PowerManagerInternal.POWER_HINT_LAUNCH, 0);
+            mPowerHintSent = true;
+        }
+    }
+
     private int startActivityUnchecked(final ActivityRecord r, ActivityRecord sourceRecord,
             IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor,
             int startFlags, boolean doResume, ActivityOptions options, TaskRecord inTask) {
@@ -1003,6 +1021,8 @@ class ActivityStarter {
                 }
             }
 
+            sendPowerHintForLaunchIfNeeded(false /* forceSend */);
+
             mReusedActivity = setTargetStackAndMoveToFrontIfNeeded(mReusedActivity);
 
             if ((mStartFlags & START_FLAG_ONLY_IF_NEEDED) != 0) {
@@ -1125,6 +1145,9 @@ class ActivityStarter {
         ActivityStack.logStartActivity(
                 EventLogTags.AM_CREATE_ACTIVITY, mStartActivity, mStartActivity.task);
         mTargetStack.mLastPausedActivity = null;
+
+        sendPowerHintForLaunchIfNeeded(false /* forceSend */);
+
         mTargetStack.startActivityLocked(mStartActivity, newTask, mKeepCurTransition, mOptions);
         if (mDoResume) {
             if (!mLaunchTaskBehind) {