Add DetectTvSystemAudioModeSupportAction
Bug: 80297382
Test: make; atest com.android.server.hdmi
Change-Id: I57ced3b62a455821a66f33624fd069ef88e635a5
diff --git a/services/core/java/com/android/server/hdmi/DetectTvSystemAudioModeSupportAction.java b/services/core/java/com/android/server/hdmi/DetectTvSystemAudioModeSupportAction.java
new file mode 100644
index 0000000..0495ff8
--- /dev/null
+++ b/services/core/java/com/android/server/hdmi/DetectTvSystemAudioModeSupportAction.java
@@ -0,0 +1,88 @@
+/*
+ * 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;
+
+import com.android.server.hdmi.HdmiCecLocalDeviceAudioSystem.TvSystemAudioModeSupportedCallback;
+
+/**
+ * Feature action that detects if TV supports system audio control.
+ */
+public class DetectTvSystemAudioModeSupportAction extends HdmiCecFeatureAction {
+
+ // State that waits for <Active Source> once send <Request Active Source>.
+ private static final int STATE_WAITING_FOR_FEATURE_ABORT = 1;
+
+ private TvSystemAudioModeSupportedCallback mCallback;
+ private int mState;
+
+ DetectTvSystemAudioModeSupportAction(HdmiCecLocalDevice source,
+ TvSystemAudioModeSupportedCallback callback) {
+ super(source);
+ mCallback = callback;
+ }
+
+ @Override
+ boolean start() {
+ mState = STATE_WAITING_FOR_FEATURE_ABORT;
+ addTimer(mState, HdmiConfig.TIMEOUT_MS);
+ sendSetSystemAudioMode();
+ return true;
+ }
+
+ @Override
+ boolean processCommand(HdmiCecMessage cmd) {
+ if (cmd.getOpcode() == Constants.MESSAGE_FEATURE_ABORT) {
+ if (mState != STATE_WAITING_FOR_FEATURE_ABORT) {
+ return false;
+ }
+ finishAction(false);
+ return true;
+ }
+ return false;
+ }
+
+ @Override
+ void handleTimerEvent(int state) {
+ if (mState != state) {
+ return;
+ }
+
+ switch (mState) {
+ case STATE_WAITING_FOR_FEATURE_ABORT:
+ finishAction(true);
+ break;
+ }
+ }
+
+ protected void sendSetSystemAudioMode() {
+ sendCommand(
+ HdmiCecMessageBuilder.buildSetSystemAudioMode(getSourceAddress(),Constants.ADDR_TV,
+ true),
+ result -> {
+ if (result != SendMessageResult.SUCCESS) {
+ finishAction(false);
+ }
+ });
+ }
+
+ private void finishAction(boolean supported) {
+ mCallback.onResult(supported);
+ audioSystem().setTvSystemAudioModeSupport(supported);
+ finish();
+ }
+}