Send <Request ARC Termination> when Standby

[Description]
In aosp/1313995, we propose to disable ARC at first, in case that
AVR doesn’t response to <Request ARC Termination> during standby
and ARC pin is not disabled.
However, the proposed CL made TV never send <Request ARC Termination>
during standby process, which is not expected.

We still need to disable ARC Pin without waiting for <Termination ARC>
sent from AVR. However, this could be done by calling
enableAudioReturnChannel() of HdmiControlService directly after
RequestArcTerminationAction is started, making sure that
<Request ARC Termination> could be sent correctly by TV when ARC
was enabled

Note that after this modification, TV could receive <Terminate ARC>
after AVR deviceInfo is cleared. In this case, a new AVR deviceInfo
with physical address=0xFFFF is added by HdmiCecNetwork.
As a result, we also add error handling in enableAudioReturnChannel
for such case.

[Test Report]
1. Connect Denon AVR-3500H
- TV standby off/on, ARC is okay
- TV CEC off/on, ARC is okay.
2. atset HdmiCecLocalDeviceTvTest PASS

Bug: 243492848

Change-Id: Ib4b7d98a091c7cce37f5d4818b84807d67da016b

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

@@ -837,7 +837,7 @@ final class HdmiCecLocalDeviceTv extends HdmiCecLocalDevice {
     void enableAudioReturnChannel(boolean enabled) {
         assertRunOnServiceThread();
         HdmiDeviceInfo avr = getAvrDeviceInfo();
-        if (avr != null) {
+        if (avr != null && avr.getPortId() != Constants.INVALID_PORT_ID) {
             mService.enableAudioReturnChannel(avr.getPortId(), enabled);
         }
     }
@@ -1335,6 +1335,16 @@ final class HdmiCecLocalDeviceTv extends HdmiCecLocalDevice {
         }
     }
 
+    @ServiceThreadOnly
+    private void forceDisableArcOnAllPins() {
+        List<HdmiPortInfo> ports = mService.getPortInfo();
+        for (HdmiPortInfo port : ports) {
+            if (isArcFeatureEnabled(port.getId())) {
+                mService.enableAudioReturnChannel(port.getId(), false);
+            }
+        }
+    }
+
     @ServiceThreadOnly
     private void disableArcIfExist() {
         assertRunOnServiceThread();
@@ -1342,13 +1352,15 @@ final class HdmiCecLocalDeviceTv extends HdmiCecLocalDevice {
         if (avr == null) {
             return;
         }
-        disableArc();
 
         // Seq #44.
         removeAllRunningArcAction();
         if (!hasAction(RequestArcTerminationAction.class) && isArcEstablished()) {
             addAndStartAction(new RequestArcTerminationAction(this, avr.getLogicalAddress()));
         }
+
+        // Disable ARC Pin earlier, prevent the case where AVR doesn't send <Terminate ARC> in time
+        forceDisableArcOnAllPins();
     }
 
     @ServiceThreadOnly

services/tests/servicestests/src/com/android/server/hdmi/HdmiCecLocalDeviceTvTest.java

@@ -842,4 +842,53 @@ public class HdmiCecLocalDeviceTvTest {
         verify(mAudioManager, never()).setStreamVolume(eq(AudioManager.STREAM_MUSIC), anyInt(),
                 anyInt());
     }
+
+    @Test
+    public void tvSendRequestArcTerminationOnSleep() {
+        // Emulate Audio device on port 0x2000 (supports ARC)
+
+        mNativeWrapper.setPortConnectionStatus(2, true);
+        HdmiCecMessage hdmiCecMessage = HdmiCecMessageBuilder.buildReportPhysicalAddressCommand(
+                ADDR_AUDIO_SYSTEM, 0x2000, HdmiDeviceInfo.DEVICE_AUDIO_SYSTEM);
+        mNativeWrapper.onCecMessage(hdmiCecMessage);
+        mTestLooper.dispatchAll();
+
+        mHdmiCecLocalDeviceTv.startArcAction(true);
+        mTestLooper.dispatchAll();
+        HdmiCecMessage requestArcInitiation = HdmiCecMessageBuilder.buildRequestArcInitiation(
+                ADDR_TV,
+                ADDR_AUDIO_SYSTEM);
+        HdmiCecMessage requestArcTermination = HdmiCecMessageBuilder.buildRequestArcTermination(
+                ADDR_TV,
+                ADDR_AUDIO_SYSTEM);
+        HdmiCecMessage initiateArc = HdmiCecMessageBuilder.buildInitiateArc(
+                ADDR_AUDIO_SYSTEM,
+                ADDR_TV);
+        HdmiCecMessage reportArcInitiated = HdmiCecMessageBuilder.buildReportArcInitiated(
+                ADDR_TV,
+                ADDR_AUDIO_SYSTEM);
+
+        assertThat(mNativeWrapper.getResultMessages()).contains(requestArcInitiation);
+        assertThat(mNativeWrapper.getResultMessages()).doesNotContain(requestArcTermination);
+
+        mNativeWrapper.onCecMessage(initiateArc);
+        mTestLooper.dispatchAll();
+
+        // Finish querying SADs
+        assertThat(mNativeWrapper.getResultMessages()).contains(SAD_QUERY);
+        mNativeWrapper.clearResultMessages();
+        mTestLooper.moveTimeForward(HdmiConfig.TIMEOUT_MS);
+        mTestLooper.dispatchAll();
+        assertThat(mNativeWrapper.getResultMessages()).contains(SAD_QUERY);
+        mTestLooper.moveTimeForward(HdmiConfig.TIMEOUT_MS);
+        mTestLooper.dispatchAll();
+
+        // ARC should be established after RequestSadAction is finished
+        assertThat(mNativeWrapper.getResultMessages()).contains(reportArcInitiated);
+
+        mHdmiControlService.onStandby(HdmiControlService.STANDBY_SCREEN_OFF);
+        mTestLooper.dispatchAll();
+        assertThat(mNativeWrapper.getResultMessages()).contains(requestArcTermination);
+    }
+
 }