| /** |
| * 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.annotation.Nullable; |
| import android.hardware.radio.IAnnouncementListener; |
| import android.hardware.radio.ICloseHandle; |
| import android.hardware.radio.ITuner; |
| import android.hardware.radio.ITunerCallback; |
| import android.hardware.radio.RadioManager; |
| import android.hardware.broadcastradio.V2_0.IBroadcastRadio; |
| import android.hidl.manager.V1_0.IServiceManager; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.stream.Collectors; |
| |
| public class BroadcastRadioService { |
| private static final String TAG = "BcRadio2Srv"; |
| |
| private final Map<Integer, RadioModule> mModules = new HashMap<>(); |
| |
| private static @NonNull List<String> listByInterface(@NonNull String fqName) { |
| try { |
| IServiceManager manager = IServiceManager.getService(); |
| if (manager == null) { |
| Slog.e(TAG, "Failed to get HIDL Service Manager"); |
| return Collections.emptyList(); |
| } |
| |
| List<String> list = manager.listByInterface(fqName); |
| if (list == null) { |
| Slog.e(TAG, "Didn't get interface list from HIDL Service Manager"); |
| return Collections.emptyList(); |
| } |
| return list; |
| } catch (RemoteException ex) { |
| Slog.e(TAG, "Failed fetching interface list", ex); |
| return Collections.emptyList(); |
| } |
| } |
| |
| public @NonNull Collection<RadioManager.ModuleProperties> loadModules(int idx) { |
| Slog.v(TAG, "loadModules(" + idx + ")"); |
| |
| for (String serviceName : listByInterface(IBroadcastRadio.kInterfaceName)) { |
| Slog.v(TAG, "checking service: " + serviceName); |
| |
| RadioModule module = RadioModule.tryLoadingModule(idx, serviceName); |
| if (module != null) { |
| Slog.i(TAG, "loaded broadcast radio module " + idx + ": " + |
| serviceName + " (HAL 2.0)"); |
| mModules.put(idx++, module); |
| } |
| } |
| |
| return mModules.values().stream().map(module -> module.mProperties). |
| collect(Collectors.toList()); |
| } |
| |
| public boolean hasModule(int id) { |
| return mModules.containsKey(id); |
| } |
| |
| public boolean hasAnyModules() { |
| return !mModules.isEmpty(); |
| } |
| |
| public ITuner openSession(int moduleId, @Nullable RadioManager.BandConfig legacyConfig, |
| boolean withAudio, @NonNull ITunerCallback callback) throws RemoteException { |
| Objects.requireNonNull(callback); |
| |
| if (!withAudio) { |
| throw new IllegalArgumentException("Non-audio sessions not supported with HAL 2.x"); |
| } |
| |
| RadioModule module = mModules.get(moduleId); |
| if (module == null) { |
| throw new IllegalArgumentException("Invalid module ID"); |
| } |
| |
| TunerSession session = module.openSession(callback); |
| if (legacyConfig != null) { |
| session.setConfiguration(legacyConfig); |
| } |
| return session; |
| } |
| |
| public ICloseHandle addAnnouncementListener(@NonNull int[] enabledTypes, |
| @NonNull IAnnouncementListener listener) { |
| AnnouncementAggregator aggregator = new AnnouncementAggregator(listener); |
| boolean anySupported = false; |
| for (RadioModule module : mModules.values()) { |
| try { |
| aggregator.watchModule(module, enabledTypes); |
| anySupported = true; |
| } catch (UnsupportedOperationException ex) { |
| Slog.v(TAG, "Announcements not supported for this module", ex); |
| } |
| } |
| if (!anySupported) { |
| Slog.i(TAG, "There are no HAL modules that support announcements"); |
| } |
| return aggregator; |
| } |
| } |