| /** |
| * Copyright (C) 2017 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.broadcastradio.hal2; |
| |
| import android.annotation.NonNull; |
| import android.graphics.Bitmap; |
| import android.hardware.broadcastradio.V2_0.ConfigFlag; |
| import android.hardware.broadcastradio.V2_0.ITunerSession; |
| import android.hardware.broadcastradio.V2_0.Result; |
| import android.hardware.radio.ITuner; |
| import android.hardware.radio.ProgramSelector; |
| import android.hardware.radio.RadioManager; |
| import android.media.AudioSystem; |
| import android.os.RemoteException; |
| import android.util.MutableBoolean; |
| import android.util.MutableInt; |
| import android.util.Slog; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| class TunerSession extends ITuner.Stub { |
| private static final String TAG = "BcRadio2Srv.session"; |
| private static final String kAudioDeviceName = "Radio tuner source"; |
| |
| private final Object mLock = new Object(); |
| |
| private final ITunerSession mHwSession; |
| private final TunerCallback mCallback; |
| private boolean mIsClosed = false; |
| private boolean mIsAudioConnected = false; |
| private boolean mIsMuted = false; |
| |
| // necessary only for older APIs compatibility |
| private RadioManager.BandConfig mDummyConfig = null; |
| |
| TunerSession(@NonNull ITunerSession hwSession, @NonNull TunerCallback callback) { |
| mHwSession = Objects.requireNonNull(hwSession); |
| mCallback = Objects.requireNonNull(callback); |
| notifyAudioServiceLocked(true); |
| } |
| |
| @Override |
| public void close() { |
| synchronized (mLock) { |
| if (mIsClosed) return; |
| mIsClosed = true; |
| notifyAudioServiceLocked(false); |
| } |
| } |
| |
| @Override |
| public boolean isClosed() { |
| return mIsClosed; |
| } |
| |
| private void checkNotClosedLocked() { |
| if (mIsClosed) { |
| throw new IllegalStateException("Tuner is closed, no further operations are allowed"); |
| } |
| } |
| |
| private void notifyAudioServiceLocked(boolean connected) { |
| if (mIsAudioConnected == connected) return; |
| |
| Slog.d(TAG, "Notifying AudioService about new state: " + connected); |
| int ret = AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_IN_FM_TUNER, |
| connected ? AudioSystem.DEVICE_STATE_AVAILABLE : AudioSystem.DEVICE_STATE_UNAVAILABLE, |
| null, kAudioDeviceName); |
| |
| if (ret == AudioSystem.AUDIO_STATUS_OK) { |
| mIsAudioConnected = connected; |
| } else { |
| Slog.e(TAG, "Failed to notify AudioService about new state: " + connected); |
| } |
| } |
| |
| @Override |
| public void setConfiguration(RadioManager.BandConfig config) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| mDummyConfig = Objects.requireNonNull(config); |
| Slog.i(TAG, "Ignoring setConfiguration - not applicable for broadcastradio HAL 2.x"); |
| TunerCallback.dispatch(() -> mCallback.mClientCb.onConfigurationChanged(config)); |
| } |
| } |
| |
| @Override |
| public RadioManager.BandConfig getConfiguration() { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| return mDummyConfig; |
| } |
| } |
| |
| @Override |
| public void setMuted(boolean mute) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| if (mIsMuted == mute) return; |
| mIsMuted = mute; |
| notifyAudioServiceLocked(!mute); |
| } |
| } |
| |
| @Override |
| public boolean isMuted() { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| return mIsMuted; |
| } |
| } |
| |
| @Override |
| public void step(boolean directionDown, boolean skipSubChannel) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| } |
| } |
| |
| @Override |
| public void scan(boolean directionDown, boolean skipSubChannel) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| } |
| } |
| |
| @Override |
| public void tune(ProgramSelector selector) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| } |
| } |
| |
| @Override |
| public void cancel() { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| } |
| } |
| |
| @Override |
| public void cancelAnnouncement() { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| } |
| } |
| |
| @Override |
| public RadioManager.ProgramInfo getProgramInformation() { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| return null; |
| } |
| } |
| |
| @Override |
| public Bitmap getImage(int id) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| return null; |
| } |
| } |
| |
| @Override |
| public boolean startBackgroundScan() { |
| Slog.i(TAG, "Explicit background scan trigger is not supported with HAL 2.x"); |
| return false; |
| } |
| |
| @Override |
| public List<RadioManager.ProgramInfo> getProgramList(Map vendorFilter) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| return null; |
| } |
| } |
| |
| @Override |
| public boolean isConfigFlagSupported(int flag) { |
| try { |
| isConfigFlagSet(flag); |
| return true; |
| } catch (IllegalStateException ex) { |
| return true; |
| } catch (UnsupportedOperationException ex) { |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean isConfigFlagSet(int flag) { |
| Slog.v(TAG, "isConfigFlagSet " + ConfigFlag.toString(flag)); |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| |
| MutableInt halResult = new MutableInt(Result.UNKNOWN_ERROR); |
| MutableBoolean flagState = new MutableBoolean(false); |
| try { |
| mHwSession.getConfigFlag(flag, (int result, boolean value) -> { |
| halResult.value = result; |
| flagState.value = value; |
| }); |
| } catch (RemoteException ex) { |
| throw new RuntimeException("Failed to check flag " + ConfigFlag.toString(flag), ex); |
| } |
| Convert.throwOnError("isConfigFlagSet", halResult.value); |
| |
| return flagState.value; |
| } |
| } |
| |
| @Override |
| public void setConfigFlag(int flag, boolean value) { |
| Slog.v(TAG, "setConfigFlag " + ConfigFlag.toString(flag) + " = " + value); |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| |
| int halResult; |
| try { |
| halResult = mHwSession.setConfigFlag(flag, value); |
| } catch (RemoteException ex) { |
| throw new RuntimeException("Failed to set flag " + ConfigFlag.toString(flag), ex); |
| } |
| Convert.throwOnError("setConfigFlag", halResult); |
| } |
| } |
| |
| @Override |
| public Map setParameters(Map parameters) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| return null; |
| } |
| } |
| |
| @Override |
| public Map getParameters(List<String> keys) { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| return null; |
| } |
| } |
| |
| @Override |
| public boolean isAntennaConnected() { |
| synchronized (mLock) { |
| checkNotClosedLocked(); |
| return true; |
| } |
| } |
| } |