Add ArcInitiationActionFromAvr
Test: make;
Change-Id: I560a97b0c409ac8a23db46038a24c537317747f7
(cherry picked from commit b69de1dc12e0860eaeb59074e62bd9216014dde6)
diff --git a/services/core/java/com/android/server/hdmi/ArcInitiationActionFromAvr.java b/services/core/java/com/android/server/hdmi/ArcInitiationActionFromAvr.java
new file mode 100644
index 0000000..ed17de5
--- /dev/null
+++ b/services/core/java/com/android/server/hdmi/ArcInitiationActionFromAvr.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2018 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.tv.cec.V1_0.SendMessageResult;
+
+/**
+ * Feature action that handles Audio Return Channel initiated by AVR devices.
+ */
+public class ArcInitiationActionFromAvr extends HdmiCecFeatureAction {
+ // TODO(shubang): add tests
+
+ // State in which waits for ARC response.
+ private static final int STATE_WAITING_FOR_INITIATE_ARC_RESPONSE = 1;
+ private static final int STATE_ARC_INITIATED = 2;
+
+ // the required maximum response time specified in CEC 9.2
+ private static final int TIMEOUT_MS = 1000;
+
+ ArcInitiationActionFromAvr(HdmiCecLocalDevice source) {
+ super(source);
+ }
+
+ @Override
+ boolean start() {
+ audioSystem().setArcStatus(true);
+ mState = STATE_WAITING_FOR_INITIATE_ARC_RESPONSE;
+ addTimer(mState, TIMEOUT_MS);
+ sendInitiateArc();
+ return true;
+ }
+
+ @Override
+ boolean processCommand(HdmiCecMessage cmd) {
+ if (mState != STATE_WAITING_FOR_INITIATE_ARC_RESPONSE) {
+ return false;
+ }
+ switch (cmd.getOpcode()) {
+ case Constants.MESSAGE_FEATURE_ABORT:
+ case Constants.MESSAGE_REPORT_ARC_TERMINATED:
+ audioSystem().setArcStatus(false);
+ finish();
+ return true;
+ case Constants.MESSAGE_REPORT_ARC_INITIATED:
+ mState = STATE_ARC_INITIATED;
+ finish();
+ return true;
+ }
+ return false;
+ }
+
+ @Override
+ void handleTimerEvent(int state) {
+ if (mState != state) {
+ return;
+ }
+
+ switch (mState) {
+ case STATE_WAITING_FOR_INITIATE_ARC_RESPONSE:
+ handleInitiateArcTimeout();
+ break;
+ }
+ }
+
+ protected void sendInitiateArc() {
+ sendCommand(HdmiCecMessageBuilder.buildInitiateArc(getSourceAddress(), Constants.ADDR_TV),
+ result -> {
+ if (result != SendMessageResult.SUCCESS) {
+ audioSystem().setArcStatus(false);
+ finish();
+ }
+ });
+ }
+
+ private void handleInitiateArcTimeout() {
+ HdmiLogger.debug("handleInitiateArcTimeout");
+ audioSystem().setArcStatus(false);
+ finish();
+ }
+
+}