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/*
* 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 android.hardware.hdmi;
import android.annotation.CallbackExecutor;
import android.annotation.NonNull;
import android.annotation.SystemApi;
import android.hardware.hdmi.HdmiControlManager.ControlCallbackResult;
import android.os.Binder;
import android.os.RemoteException;
import android.util.Log;
import com.android.internal.util.Preconditions;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.Executor;
/**
* An {@code HdmiSwitchClient} represents a HDMI-CEC switch device.
*
* <p>HdmiSwitchClient has a CEC device type of HdmiDeviceInfo.DEVICE_PURE_CEC_SWITCH, but it is
* used by all Android devices that have multiple HDMI inputs, even if it is not a "pure" swicth
* and has another device type like TV or Player.
*
* @hide
*/
@SystemApi
public class HdmiSwitchClient extends HdmiClient {
private static final String TAG = "HdmiSwitchClient";
/* package */ HdmiSwitchClient(IHdmiControlService service) {
super(service);
}
private static IHdmiControlCallback getCallbackWrapper(final OnSelectListener listener) {
return new IHdmiControlCallback.Stub() {
@Override
public void onComplete(int result) {
listener.onSelect(result);
}
};
}
@Override
public int getDeviceType() {
return HdmiDeviceInfo.DEVICE_PURE_CEC_SWITCH;
}
/**
* Selects a CEC logical device to be a new active source.
*
* @param logicalAddress logical address of the device to select
* @param listener listener to get the result with
*
* @hide
*/
public void selectDevice(int logicalAddress, @NonNull OnSelectListener listener) {
Preconditions.checkNotNull(listener);
try {
mService.deviceSelect(logicalAddress, getCallbackWrapper(listener));
} catch (RemoteException e) {
Log.e(TAG, "failed to select device: ", e);
throw e.rethrowFromSystemServer();
}
}
/**
* Selects a HDMI port to be a new route path.
*
* @param portId HDMI port to select
* @see {@link android.media.tv.TvInputHardwareInfo#getHdmiPortId()}
* to get portId of a specific TV Input.
* @param listener listener to get the result with
*
* @hide
*/
@SystemApi
public void selectPort(int portId, @NonNull OnSelectListener listener) {
Preconditions.checkNotNull(listener);
try {
mService.portSelect(portId, getCallbackWrapper(listener));
} catch (RemoteException e) {
Log.e(TAG, "failed to select port: ", e);
throw e.rethrowFromSystemServer();
}
}
/**
* Selects a CEC logical device to be a new active source.
*
* @param logicalAddress logical address of the device to select
* @param executor executor to allow the develper to specify the thread upon which the listeners
* will be invoked
* @param listener listener to get the result with
*
* @hide
*/
public void selectDevice(
int logicalAddress,
@NonNull @CallbackExecutor Executor executor,
@NonNull OnSelectListener listener) {
Preconditions.checkNotNull(listener);
try {
mService.deviceSelect(logicalAddress,
new IHdmiControlCallback.Stub() {
@Override
public void onComplete(int result) {
Binder.withCleanCallingIdentity(
() -> executor.execute(() -> listener.onSelect(result)));
}
}
);
} catch (RemoteException e) {
Log.e(TAG, "failed to select device: ", e);
throw e.rethrowFromSystemServer();
}
}
/**
* Selects a HDMI port to be a new route path.
*
* @param portId HDMI port to select
* @param executor executor to allow the develper to specify the thread upon which the listeners
* will be invoked
* @param listener listener to get the result with
*
* @hide
*/
@SystemApi
public void selectPort(
int portId,
@NonNull @CallbackExecutor Executor executor,
@NonNull OnSelectListener listener) {
Preconditions.checkNotNull(listener);
try {
mService.portSelect(portId,
new IHdmiControlCallback.Stub() {
@Override
public void onComplete(int result) {
Binder.withCleanCallingIdentity(
() -> executor.execute(() -> listener.onSelect(result)));
}
}
);
} catch (RemoteException e) {
Log.e(TAG, "failed to select port: ", e);
throw e.rethrowFromSystemServer();
}
}
/**
* Returns all the CEC devices connected to the device.
*
* <p>This only applies to device with multiple HDMI inputs
*
* @return list of {@link HdmiDeviceInfo} for connected CEC devices. Empty list is returned if
* there is none.
*
* @hide
*/
public List<HdmiDeviceInfo> getDeviceList() {
try {
return mService.getDeviceList();
} catch (RemoteException e) {
Log.e("TAG", "Failed to call getDeviceList():", e);
return Collections.<HdmiDeviceInfo>emptyList();
}
}
/**
* Listener interface used to get the result of {@link #deviceSelect} or {@link #portSelect}.
*
* @hide
*/
@SystemApi
public interface OnSelectListener {
/**
* Called when the operation is finished.
*
* @param result callback result.
* @see {@link ControlCallbackResult}
*/
void onSelect(@ControlCallbackResult int result);
}
}
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