Switch display control betw. Android and Sidekick (bc839a39) · Commits · e / os / android_frameworks_base

core/java/android/hardware/sidekick/SidekickInternal.java

0 → 100644

+56 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.hardware.sidekick;


		/**
		* Sidekick local system service interface.
		*
		* @hide Only for use within the system server, and maybe by Clockwork Home.
		*/
		public abstract class SidekickInternal {

		/**
		* Tell Sidekick to reset back to newly-powered-on state.
		*
		* @return true on success (Sidekick is reset), false if Sidekick is not
		* available (failed or not present). Either way, upon return Sidekick is
		* guaranteed not to be controlling the display.
		*/
		public abstract boolean reset();

		/**
		* Tell Sidekick it can start controlling the display.
		*
		* SidekickServer may choose not to actually control the display, if it's been told
		* via other channels to leave the previous image on the display (same as SUSPEND in
		* a non-Sidekick system).
		*
		* @param displayState - one of Display.STATE_DOZE_SUSPEND, Display.STATE_ON_SUSPEND
		* @return true on success, false on failure (no sidekick available)
		*/
		public abstract boolean startDisplayControl(int displayState);

		/**
		* Tell Sidekick it must stop controlling the display.
		*
		* No return code because this must always succeed - after return, Sidekick
		* is guaranteed to not be controlling the display.
		*/
		public abstract void endDisplayControl();

		}

services/core/java/com/android/server/display/LocalDisplayAdapter.java

+29 −2

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import com.android.server.lights.Light;
		import com.android.server.lights.LightsManager;

		import android.content.Context;
		import android.hardware.sidekick.SidekickInternal;
		import android.os.Build;
		import android.os.Handler;
		import android.os.IBinder;
		@@ -35,7 +36,6 @@ import android.view.Display;
		import android.view.DisplayEventReceiver;
		import android.view.Surface;
		import android.view.SurfaceControl;

		import java.io.PrintWriter;
		import java.util.ArrayList;
		import java.util.Arrays;
		@@ -170,6 +170,8 @@ final class LocalDisplayAdapter extends DisplayAdapter {
		private int mActiveColorMode;
		private boolean mActiveColorModeInvalid;
		private Display.HdrCapabilities mHdrCapabilities;
		private boolean mSidekickActive;
		private SidekickInternal mSidekickInternal;

		private SurfaceControl.PhysicalDisplayInfo mDisplayInfos[];

		@@ -181,6 +183,7 @@ final class LocalDisplayAdapter extends DisplayAdapter {
		updatePhysicalDisplayInfoLocked(physicalDisplayInfos, activeDisplayInfo,
		colorModes, activeColorMode);
		updateColorModesLocked(colorModes, activeColorMode);
		mSidekickInternal = LocalServices.getService(SidekickInternal.class);
		if (mBuiltInDisplayId == SurfaceControl.BUILT_IN_DISPLAY_ID_MAIN) {
		LightsManager lights = LocalServices.getService(LightsManager.class);
		mBacklight = lights.getLight(LightsManager.LIGHT_ID_BACKLIGHT);
		@@ -510,16 +513,40 @@ final class LocalDisplayAdapter extends DisplayAdapter {
		+ ", state=" + Display.stateToString(state) + ")");
		}

		// We must tell sidekick to stop controlling the display before we
		// can change its power mode, so do that first.
		if (mSidekickActive) {
		Trace.traceBegin(Trace.TRACE_TAG_POWER,
		"SidekickInternal#endDisplayControl");
		try {
		mSidekickInternal.endDisplayControl();
		} finally {
		Trace.traceEnd(Trace.TRACE_TAG_POWER);
		}
		mSidekickActive = false;
		}
		final int mode = getPowerModeForState(state);
		Trace.traceBegin(Trace.TRACE_TAG_POWER, "setDisplayState("
		+ "id=" + displayId
		+ ", state=" + Display.stateToString(state) + ")");
		try {
		final int mode = getPowerModeForState(state);
		SurfaceControl.setDisplayPowerMode(token, mode);
		Trace.traceCounter(Trace.TRACE_TAG_POWER, "DisplayPowerMode", mode);
		} finally {
		Trace.traceEnd(Trace.TRACE_TAG_POWER);
		}
		// If we're entering a suspended (but not OFF) power state and we
		// have a sidekick available, tell it now that it can take control.
		if (Display.isSuspendedState(state) && state != Display.STATE_OFF
		&& mSidekickInternal != null && !mSidekickActive) {
		Trace.traceBegin(Trace.TRACE_TAG_POWER,
		"SidekickInternal#startDisplayControl");
		try {
		mSidekickActive = mSidekickInternal.startDisplayControl(state);
		} finally {
		Trace.traceEnd(Trace.TRACE_TAG_POWER);
		}
		}
		}

		private void setDisplayBrightness(int brightness) {

services/java/com/android/server/SystemServer.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -193,6 +193,8 @@ public final class SystemServer {
		"com.google.android.clockwork.ThermalObserver";
		private static final String WEAR_CONNECTIVITY_SERVICE_CLASS =
		"com.google.android.clockwork.connectivity.WearConnectivityService";
		private static final String WEAR_SIDEKICK_SERVICE_CLASS =
		"com.google.android.clockwork.sidekick.SidekickService";
		private static final String WEAR_DISPLAY_SERVICE_CLASS =
		"com.google.android.clockwork.display.WearDisplayService";
		private static final String WEAR_LEFTY_SERVICE_CLASS =
		@@ -561,6 +563,13 @@ public final class SystemServer {
		mSystemServiceManager.startService(LightsService.class);
		traceEnd();

		traceBeginAndSlog("StartSidekickService");
		// Package manager isn't started yet; need to use SysProp not hardware feature
		if (SystemProperties.getBoolean("config.enable_sidekick_graphics", false)) {
		mSystemServiceManager.startService(WEAR_SIDEKICK_SERVICE_CLASS);
		}
		traceEnd();

		// Display manager is needed to provide display metrics before package manager
		// starts up.
		traceBeginAndSlog("StartDisplayManager");