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Commit aeb4e071 authored by Jeff Brown's avatar Jeff Brown Committed by Android (Google) Code Review
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Merge "Add dumpsys to dock observer." into klp-modular-dev

parents d897fb53 010e561a
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+132 −51
Original line number Diff line number Diff line
@@ -19,10 +19,12 @@ package com.android.server;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.media.AudioManager;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Binder;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
@@ -33,63 +35,63 @@ import android.provider.Settings;
import android.util.Log;
import android.util.Slog;

import java.io.FileDescriptor;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.PrintWriter;

/**
 * <p>DockObserver monitors for a docking station.
 * DockObserver monitors for a docking station.
 */
final class DockObserver extends UEventObserver {
    private static final String TAG = DockObserver.class.getSimpleName();
final class DockObserver extends SystemService {
    private static final String TAG = "DockObserver";

    private static final String DOCK_UEVENT_MATCH = "DEVPATH=/devices/virtual/switch/dock";
    private static final String DOCK_STATE_PATH = "/sys/class/switch/dock/state";

    private static final int MSG_DOCK_STATE_CHANGED = 0;

    private final Object mLock = new Object();
    private final PowerManager mPowerManager;
    private final PowerManager.WakeLock mWakeLock;

    private int mDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED;
    private int mPreviousDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED;
    private final Object mLock = new Object();

    private boolean mSystemReady;

    private final Context mContext;
    private final PowerManager mPowerManager;
    private final PowerManager.WakeLock mWakeLock;
    private int mActualDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED;

    private int mReportedDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED;
    private int mPreviousDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED;

    private boolean mUpdatesStopped;

    public DockObserver(Context context) {
        mContext = context;
        super(context);

        mPowerManager = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE);
        mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
        mWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);

        init();  // set initial status
        startObserving(DOCK_UEVENT_MATCH);

        mObserver.startObserving(DOCK_UEVENT_MATCH);
    }

    @Override
    public void onUEvent(UEventObserver.UEvent event) {
        if (Log.isLoggable(TAG, Log.VERBOSE)) {
            Slog.v(TAG, "Dock UEVENT: " + event.toString());
    public void onStart() {
        publishBinderService(TAG, new BinderService());
    }

    @Override
    public void onBootPhase(int phase) {
        if (phase == PHASE_ACTIVITY_MANAGER_READY) {
            synchronized (mLock) {
            try {
                int newState = Integer.parseInt(event.get("SWITCH_STATE"));
                if (newState != mDockState) {
                    mPreviousDockState = mDockState;
                    mDockState = newState;
                    if (mSystemReady) {
                        // Wake up immediately when docked or undocked.
                        mPowerManager.wakeUp(SystemClock.uptimeMillis());
                mSystemReady = true;

                // don't bother broadcasting undocked here
                if (mReportedDockState != Intent.EXTRA_DOCK_STATE_UNDOCKED) {
                    updateLocked();
                }
            }
            } catch (NumberFormatException e) {
                Slog.e(TAG, "Could not parse switch state from event " + event);
            }
        }
    }

@@ -100,8 +102,8 @@ final class DockObserver extends UEventObserver {
                FileReader file = new FileReader(DOCK_STATE_PATH);
                try {
                    int len = file.read(buffer, 0, 1024);
                    mDockState = Integer.valueOf((new String(buffer, 0, len)).trim());
                    mPreviousDockState = mDockState;
                    setActualDockStateLocked(Integer.valueOf((new String(buffer, 0, len)).trim()));
                    mPreviousDockState = mActualDockState;
                } finally {
                    file.close();
                }
@@ -113,13 +115,21 @@ final class DockObserver extends UEventObserver {
        }
    }

    void systemReady() {
        synchronized (mLock) {
            // don't bother broadcasting undocked here
            if (mDockState != Intent.EXTRA_DOCK_STATE_UNDOCKED) {
    private void setActualDockStateLocked(int newState) {
        mActualDockState = newState;
        if (!mUpdatesStopped) {
            setDockStateLocked(newState);
        }
    }

    private void setDockStateLocked(int newState) {
        if (newState != mReportedDockState) {
            mReportedDockState = newState;
            if (mSystemReady) {
                // Wake up immediately when docked or undocked.
                mPowerManager.wakeUp(SystemClock.uptimeMillis());
                updateLocked();
            }
            mSystemReady = true;
        }
    }

@@ -130,10 +140,13 @@ final class DockObserver extends UEventObserver {

    private void handleDockStateChange() {
        synchronized (mLock) {
            Slog.i(TAG, "Dock state changed: " + mDockState);
            Slog.i(TAG, "Dock state changed from " + mPreviousDockState + " to "
                    + mReportedDockState);
            final int previousDockState = mPreviousDockState;
            mPreviousDockState = mReportedDockState;

            // Skip the dock intent if not yet provisioned.
            final ContentResolver cr = mContext.getContentResolver();
            final ContentResolver cr = getContext().getContentResolver();
            if (Settings.Global.getInt(cr,
                    Settings.Global.DEVICE_PROVISIONED, 0) == 0) {
                Slog.i(TAG, "Device not provisioned, skipping dock broadcast");
@@ -143,27 +156,27 @@ final class DockObserver extends UEventObserver {
            // Pack up the values and broadcast them to everyone
            Intent intent = new Intent(Intent.ACTION_DOCK_EVENT);
            intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
            intent.putExtra(Intent.EXTRA_DOCK_STATE, mDockState);
            intent.putExtra(Intent.EXTRA_DOCK_STATE, mReportedDockState);

            // Play a sound to provide feedback to confirm dock connection.
            // Particularly useful for flaky contact pins...
            if (Settings.Global.getInt(cr,
                    Settings.Global.DOCK_SOUNDS_ENABLED, 1) == 1) {
                String whichSound = null;
                if (mDockState == Intent.EXTRA_DOCK_STATE_UNDOCKED) {
                    if ((mPreviousDockState == Intent.EXTRA_DOCK_STATE_DESK) ||
                        (mPreviousDockState == Intent.EXTRA_DOCK_STATE_LE_DESK) ||
                        (mPreviousDockState == Intent.EXTRA_DOCK_STATE_HE_DESK)) {
                if (mReportedDockState == Intent.EXTRA_DOCK_STATE_UNDOCKED) {
                    if ((previousDockState == Intent.EXTRA_DOCK_STATE_DESK) ||
                        (previousDockState == Intent.EXTRA_DOCK_STATE_LE_DESK) ||
                        (previousDockState == Intent.EXTRA_DOCK_STATE_HE_DESK)) {
                        whichSound = Settings.Global.DESK_UNDOCK_SOUND;
                    } else if (mPreviousDockState == Intent.EXTRA_DOCK_STATE_CAR) {
                    } else if (previousDockState == Intent.EXTRA_DOCK_STATE_CAR) {
                        whichSound = Settings.Global.CAR_UNDOCK_SOUND;
                    }
                } else {
                    if ((mDockState == Intent.EXTRA_DOCK_STATE_DESK) ||
                        (mDockState == Intent.EXTRA_DOCK_STATE_LE_DESK) ||
                        (mDockState == Intent.EXTRA_DOCK_STATE_HE_DESK)) {
                    if ((mReportedDockState == Intent.EXTRA_DOCK_STATE_DESK) ||
                        (mReportedDockState == Intent.EXTRA_DOCK_STATE_LE_DESK) ||
                        (mReportedDockState == Intent.EXTRA_DOCK_STATE_HE_DESK)) {
                        whichSound = Settings.Global.DESK_DOCK_SOUND;
                    } else if (mDockState == Intent.EXTRA_DOCK_STATE_CAR) {
                    } else if (mReportedDockState == Intent.EXTRA_DOCK_STATE_CAR) {
                        whichSound = Settings.Global.CAR_DOCK_SOUND;
                    }
                }
@@ -173,7 +186,8 @@ final class DockObserver extends UEventObserver {
                    if (soundPath != null) {
                        final Uri soundUri = Uri.parse("file://" + soundPath);
                        if (soundUri != null) {
                            final Ringtone sfx = RingtoneManager.getRingtone(mContext, soundUri);
                            final Ringtone sfx = RingtoneManager.getRingtone(
                                    getContext(), soundUri);
                            if (sfx != null) {
                                sfx.setStreamType(AudioManager.STREAM_SYSTEM);
                                sfx.play();
@@ -186,7 +200,7 @@ final class DockObserver extends UEventObserver {
            // Send the dock event intent.
            // There are many components in the system watching for this so as to
            // adjust audio routing, screen orientation, etc.
            mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL);
            getContext().sendStickyBroadcastAsUser(intent, UserHandle.ALL);

            // Release the wake lock that was acquired when the message was posted.
            mWakeLock.release();
@@ -203,4 +217,71 @@ final class DockObserver extends UEventObserver {
            }
        }
    };

    private final UEventObserver mObserver = new UEventObserver() {
        @Override
        public void onUEvent(UEventObserver.UEvent event) {
            if (Log.isLoggable(TAG, Log.VERBOSE)) {
                Slog.v(TAG, "Dock UEVENT: " + event.toString());
            }

            try {
                synchronized (mLock) {
                    setActualDockStateLocked(Integer.parseInt(event.get("SWITCH_STATE")));
                }
            } catch (NumberFormatException e) {
                Slog.e(TAG, "Could not parse switch state from event " + event);
            }
        }
    };

    private final class BinderService extends Binder {
        @Override
        protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
            if (getContext().checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
                    != PackageManager.PERMISSION_GRANTED) {
                pw.println("Permission Denial: can't dump dock observer service from from pid="
                        + Binder.getCallingPid()
                        + ", uid=" + Binder.getCallingUid());
                return;
            }

            final long ident = Binder.clearCallingIdentity();
            try {
                synchronized (mLock) {
                    if (args == null || args.length == 0 || "-a".equals(args[0])) {
                        pw.println("Current Dock Observer Service state:");
                        if (mUpdatesStopped) {
                            pw.println("  (UPDATES STOPPED -- use 'reset' to restart)");
                        }
                        pw.println("  reported state: " + mReportedDockState);
                        pw.println("  previous state: " + mPreviousDockState);
                        pw.println("  actual state: " + mActualDockState);
                    } else if (args.length == 3 && "set".equals(args[0])) {
                        String key = args[1];
                        String value = args[2];
                        try {
                            if ("state".equals(key)) {
                                mUpdatesStopped = true;
                                setDockStateLocked(Integer.parseInt(value));
                            } else {
                                pw.println("Unknown set option: " + key);
                            }
                        } catch (NumberFormatException ex) {
                            pw.println("Bad value: " + value);
                        }
                    } else if (args.length == 1 && "reset".equals(args[0])) {
                        mUpdatesStopped = false;
                        setDockStateLocked(mActualDockState);
                    } else {
                        pw.println("Dump current dock state, or:");
                        pw.println("  set state <value>");
                        pw.println("  reset");
                    }
                }
            } finally {
                Binder.restoreCallingIdentity(ident);
            }
        }
    }
}
+1 −14
Original line number Diff line number Diff line
@@ -307,7 +307,6 @@ public final class SystemServer {
        IPackageManager pm = null;
        WindowManagerService wm = null;
        BluetoothManagerService bluetooth = null;
        DockObserver dock = null;
        UsbService usb = null;
        SerialService serial = null;
        RecognitionManagerService recognition = null;
@@ -742,13 +741,7 @@ public final class SystemServer {
            }

            if (!disableNonCoreServices) {
                try {
                    Slog.i(TAG, "Dock Observer");
                    // Listen for dock station changes
                    dock = new DockObserver(context);
                } catch (Throwable e) {
                    reportWtf("starting DockObserver", e);
                }
                mSystemServiceManager.startService(DockObserver.class);
            }

            if (!disableMedia) {
@@ -987,7 +980,6 @@ public final class SystemServer {
        final NetworkStatsService networkStatsF = networkStats;
        final NetworkPolicyManagerService networkPolicyF = networkPolicy;
        final ConnectivityService connectivityF = connectivity;
        final DockObserver dockF = dock;
        final WallpaperManagerService wallpaperF = wallpaper;
        final InputMethodManagerService immF = imm;
        final RecognitionManagerService recognitionF = recognition;
@@ -1054,11 +1046,6 @@ public final class SystemServer {
                } catch (Throwable e) {
                    reportWtf("making Connectivity Service ready", e);
                }
                try {
                    if (dockF != null) dockF.systemReady();
                } catch (Throwable e) {
                    reportWtf("making Dock Service ready", e);
                }
                try {
                    if (recognitionF != null) recognitionF.systemReady();
                } catch (Throwable e) {