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Commit 39b22fbc authored by Marvin Ramin's avatar Marvin Ramin
Browse files

Implement ADB command for OTP 

adb shell cmd hdmi_control otp will launch HDMI-CEC feature "One Touch
Play". This equals a call to HdmiPlaybackClient#oneTouchPlay(..).

Bug: 173182293
Test: adb shell cmd hdmi_control otp; verify with cec-client

Change-Id: Ie9b71083718521c9cac9d7b341a47ae223f373b2
parent bc641a41

services/core/java/com/android/server/hdmi/HdmiControlService.java

+12 −0
Original line number Diff line number Diff line
@@ -66,6 +66,8 @@ import android.os.Looper; 
import android.os.PowerManager;

import android.os.RemoteCallbackList;

import android.os.RemoteException;

import android.os.ResultReceiver;

import android.os.ShellCallback;

import android.os.SystemClock;

import android.os.SystemProperties;

import android.os.UserHandle;
@@ -2290,6 +2292,16 @@ public class HdmiControlService extends SystemService { 
            });

        }



        @Override

        public void onShellCommand(@Nullable FileDescriptor in, @Nullable FileDescriptor out,

                @Nullable FileDescriptor err, String[] args,

                @Nullable ShellCallback callback, ResultReceiver resultReceiver)

                throws RemoteException {

            enforceAccessPermission();

            new HdmiControlShellCommand(this)

                    .exec(this, in, out, err, args, callback, resultReceiver);

        }



        @Override

        protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) {

            if (!DumpUtils.checkDumpPermission(getContext(), TAG, writer)) return;

services/core/java/com/android/server/hdmi/HdmiControlShellCommand.java

0 → 100644
+107 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2020 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 com.android.server.hdmi;





import android.hardware.hdmi.HdmiControlManager;

import android.hardware.hdmi.IHdmiControlCallback;

import android.hardware.hdmi.IHdmiControlService;

import android.os.RemoteException;

import android.os.ShellCommand;

import android.util.Slog;



import java.io.PrintWriter;

import java.util.concurrent.CountDownLatch;

import java.util.concurrent.TimeUnit;

import java.util.concurrent.atomic.AtomicInteger;



final class HdmiControlShellCommand extends ShellCommand {



    private static final String TAG = "HdmiShellCommand";



    private final IHdmiControlService.Stub mBinderService;





    HdmiControlShellCommand(IHdmiControlService.Stub binderService) {

        mBinderService = binderService;

    }



    @Override

    public int onCommand(String cmd) {

        if (cmd == null) {

            return handleDefaultCommands(cmd);

        }



        try {

            return handleShellCommand(cmd);

        } catch (Exception e) {

            getErrPrintWriter().println(

                    "Caught error for command '" + cmd + "': " + e.getMessage());

            Slog.e(TAG, "Error handling hdmi_control shell command: " + cmd, e);

            return 1;

        }

    }



    @Override

    public void onHelp() {

        PrintWriter pw = getOutPrintWriter();



        pw.println("HdmiControlManager (hdmi_control) commands:");

        pw.println("  help");

        pw.println("      Print this help text.");

        pw.println("  onetouchplay, otp");

        pw.println("      Send the \"One Touch Play\" feature from a source to the TV");

    }



    private int handleShellCommand(String cmd) throws RemoteException {

        PrintWriter pw = getOutPrintWriter();



        switch (cmd) {

            case "otp":

            case "onetouchplay":

                return oneTouchPlay(pw);

        }



        getErrPrintWriter().println("Unhandled command: " + cmd);

        return 1;

    }



    private int oneTouchPlay(PrintWriter pw) throws RemoteException {

        final CountDownLatch latch = new CountDownLatch(1);

        AtomicInteger cecResult = new AtomicInteger();

        pw.print("Sending One Touch Play...");

        mBinderService.oneTouchPlay(new IHdmiControlCallback.Stub() {

            @Override

            public void onComplete(int result) {

                pw.println(" done (" + result + ")");

                latch.countDown();

                cecResult.set(result);

            }

        });



        try {

            if (!latch.await(HdmiConfig.TIMEOUT_MS, TimeUnit.MILLISECONDS)) {

                getErrPrintWriter().println("One Touch Play timed out.");

                return 1;

            }

        } catch (InterruptedException e) {

            getErrPrintWriter().println("Caught InterruptedException");

            Thread.currentThread().interrupt();

        }

        return cecResult.get() == HdmiControlManager.RESULT_SUCCESS ? 0 : 1;

    }

}