| /* |
| * Copyright (C) 2016 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. |
| */ |
| |
| #define LOG_TAG "AAudio" |
| //#define LOG_NDEBUG 0 |
| #include <utils/Log.h> |
| |
| #include <aaudio/AAudio.h> |
| #include <binder/IPCThreadState.h> |
| |
| #include "binding/AudioEndpointParcelable.h" |
| #include "binding/AAudioStreamRequest.h" |
| #include "binding/AAudioServiceDefinitions.h" |
| #include "binding/AAudioStreamConfiguration.h" |
| #include "binding/IAAudioService.h" |
| #include "utility/AAudioUtilities.h" |
| |
| namespace android { |
| |
| using aaudio::aaudio_handle_t; |
| |
| /** |
| * This is used by the AAudio Client to talk to the AAudio Service. |
| * |
| * The order of parameters in the Parcels must match with code in AAudioService.cpp. |
| */ |
| class BpAAudioService : public BpInterface<IAAudioService> |
| { |
| public: |
| explicit BpAAudioService(const sp<IBinder>& impl) |
| : BpInterface<IAAudioService>(impl) |
| { |
| } |
| |
| void registerClient(const sp<IAAudioClient>& client) override |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeStrongBinder(IInterface::asBinder(client)); |
| remote()->transact(REGISTER_CLIENT, data, &reply); |
| } |
| |
| aaudio_handle_t openStream(const aaudio::AAudioStreamRequest &request, |
| aaudio::AAudioStreamConfiguration &configurationOutput) override { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| // request.dump(); |
| request.writeToParcel(&data); |
| status_t err = remote()->transact(OPEN_STREAM, data, &reply); |
| if (err != NO_ERROR) { |
| ALOGE("BpAAudioService::client openStream transact failed %d", err); |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_handle_t stream; |
| err = reply.readInt32(&stream); |
| if (err != NO_ERROR) { |
| ALOGE("BpAAudioService::client transact(OPEN_STREAM) readInt %d", err); |
| return AAudioConvert_androidToAAudioResult(err); |
| } else if (stream < 0) { |
| return stream; |
| } |
| err = configurationOutput.readFromParcel(&reply); |
| if (err != NO_ERROR) { |
| ALOGE("BpAAudioService::client openStream readFromParcel failed %d", err); |
| closeStream(stream); |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| return stream; |
| } |
| |
| virtual aaudio_result_t closeStream(aaudio_handle_t streamHandle) override { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeInt32(streamHandle); |
| status_t err = remote()->transact(CLOSE_STREAM, data, &reply); |
| if (err != NO_ERROR) { |
| ALOGE("BpAAudioService::client closeStream transact failed %d", err); |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_result_t res; |
| reply.readInt32(&res); |
| return res; |
| } |
| |
| virtual aaudio_result_t getStreamDescription(aaudio_handle_t streamHandle, |
| aaudio::AudioEndpointParcelable &parcelable) { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeInt32(streamHandle); |
| status_t err = remote()->transact(GET_STREAM_DESCRIPTION, data, &reply); |
| if (err != NO_ERROR) { |
| ALOGE("BpAAudioService::client transact(GET_STREAM_DESCRIPTION) returns %d", err); |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_result_t result; |
| err = reply.readInt32(&result); |
| if (err != NO_ERROR) { |
| ALOGE("BpAAudioService::client transact(GET_STREAM_DESCRIPTION) readInt %d", err); |
| return AAudioConvert_androidToAAudioResult(err); |
| } else if (result != AAUDIO_OK) { |
| ALOGE("BpAAudioService::client GET_STREAM_DESCRIPTION passed result %d", result); |
| return result; |
| } |
| err = parcelable.readFromParcel(&reply); |
| if (err != NO_ERROR) { |
| ALOGE("BpAAudioService::client transact(GET_STREAM_DESCRIPTION) read endpoint %d", err); |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| return result; |
| } |
| |
| // TODO should we wait for a reply? |
| virtual aaudio_result_t startStream(aaudio_handle_t streamHandle) override { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeInt32(streamHandle); |
| status_t err = remote()->transact(START_STREAM, data, &reply); |
| if (err != NO_ERROR) { |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_result_t res; |
| reply.readInt32(&res); |
| return res; |
| } |
| |
| virtual aaudio_result_t pauseStream(aaudio_handle_t streamHandle) override { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeInt32(streamHandle); |
| status_t err = remote()->transact(PAUSE_STREAM, data, &reply); |
| if (err != NO_ERROR) { |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_result_t res; |
| reply.readInt32(&res); |
| return res; |
| } |
| |
| virtual aaudio_result_t stopStream(aaudio_handle_t streamHandle) override { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeInt32(streamHandle); |
| status_t err = remote()->transact(STOP_STREAM, data, &reply); |
| if (err != NO_ERROR) { |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_result_t res; |
| reply.readInt32(&res); |
| return res; |
| } |
| |
| virtual aaudio_result_t flushStream(aaudio_handle_t streamHandle) override { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeInt32(streamHandle); |
| status_t err = remote()->transact(FLUSH_STREAM, data, &reply); |
| if (err != NO_ERROR) { |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_result_t res; |
| reply.readInt32(&res); |
| return res; |
| } |
| |
| virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle, |
| pid_t clientThreadId, |
| int64_t periodNanoseconds) |
| override { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeInt32(streamHandle); |
| data.writeInt32((int32_t) clientThreadId); |
| data.writeInt64(periodNanoseconds); |
| status_t err = remote()->transact(REGISTER_AUDIO_THREAD, data, &reply); |
| if (err != NO_ERROR) { |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_result_t res; |
| reply.readInt32(&res); |
| return res; |
| } |
| |
| virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle, |
| pid_t clientThreadId) |
| override { |
| Parcel data, reply; |
| // send command |
| data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor()); |
| data.writeInt32(streamHandle); |
| data.writeInt32((int32_t) clientThreadId); |
| status_t err = remote()->transact(UNREGISTER_AUDIO_THREAD, data, &reply); |
| if (err != NO_ERROR) { |
| return AAudioConvert_androidToAAudioResult(err); |
| } |
| // parse reply |
| aaudio_result_t res; |
| reply.readInt32(&res); |
| return res; |
| } |
| |
| }; |
| |
| // Implement an interface to the service. |
| // This is here so that you don't have to link with libaaudio static library. |
| IMPLEMENT_META_INTERFACE(AAudioService, "IAAudioService"); |
| |
| // The order of parameters in the Parcels must match with code in BpAAudioService |
| |
| status_t BnAAudioService::onTransact(uint32_t code, const Parcel& data, |
| Parcel* reply, uint32_t flags) { |
| aaudio_handle_t streamHandle; |
| aaudio::AAudioStreamRequest request; |
| aaudio::AAudioStreamConfiguration configuration; |
| pid_t tid; |
| int64_t nanoseconds; |
| aaudio_result_t result; |
| status_t status = NO_ERROR; |
| ALOGV("BnAAudioService::onTransact(%i) %i", code, flags); |
| |
| switch(code) { |
| case REGISTER_CLIENT: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| sp<IAAudioClient> client = interface_cast<IAAudioClient>( |
| data.readStrongBinder()); |
| // readStrongBinder() can return null |
| if (client.get() == nullptr) { |
| ALOGE("BnAAudioService::%s(REGISTER_CLIENT) client is NULL!", __func__); |
| android_errorWriteLog(0x534e4554, "116230453"); |
| return DEAD_OBJECT; |
| } else { |
| registerClient(client); |
| return NO_ERROR; |
| } |
| } break; |
| |
| case OPEN_STREAM: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| request.readFromParcel(&data); |
| result = request.validate(); |
| if (result != AAUDIO_OK) { |
| streamHandle = result; |
| } else { |
| //ALOGD("BnAAudioService::client openStream request dump --------------------"); |
| //request.dump(); |
| // Override the uid and pid from the client in case they are incorrect. |
| request.setUserId(IPCThreadState::self()->getCallingUid()); |
| request.setProcessId(IPCThreadState::self()->getCallingPid()); |
| streamHandle = openStream(request, configuration); |
| //ALOGD("BnAAudioService::onTransact OPEN_STREAM server handle = 0x%08X", |
| // streamHandle); |
| } |
| reply->writeInt32(streamHandle); |
| configuration.writeToParcel(reply); |
| return NO_ERROR; |
| } break; |
| |
| case CLOSE_STREAM: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| data.readInt32(&streamHandle); |
| result = closeStream(streamHandle); |
| //ALOGD("BnAAudioService::onTransact CLOSE_STREAM 0x%08X, result = %d", |
| // streamHandle, result); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| |
| case GET_STREAM_DESCRIPTION: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| status = data.readInt32(&streamHandle); |
| if (status != NO_ERROR) { |
| return status; |
| } |
| aaudio::AudioEndpointParcelable parcelable; |
| result = getStreamDescription(streamHandle, parcelable); |
| if (result != AAUDIO_OK) { |
| return AAudioConvert_aaudioToAndroidStatus(result); |
| } |
| status = reply->writeInt32(result); |
| if (status != NO_ERROR) { |
| return status; |
| } |
| return parcelable.writeToParcel(reply); |
| } break; |
| |
| case START_STREAM: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| data.readInt32(&streamHandle); |
| result = startStream(streamHandle); |
| ALOGV("BnAAudioService::onTransact START_STREAM 0x%08X, result = %d", |
| streamHandle, result); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| |
| case PAUSE_STREAM: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| data.readInt32(&streamHandle); |
| result = pauseStream(streamHandle); |
| ALOGV("BnAAudioService::onTransact PAUSE_STREAM 0x%08X, result = %d", |
| streamHandle, result); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| |
| case STOP_STREAM: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| data.readInt32(&streamHandle); |
| result = stopStream(streamHandle); |
| ALOGV("BnAAudioService::onTransact STOP_STREAM 0x%08X, result = %d", |
| streamHandle, result); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| |
| case FLUSH_STREAM: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| data.readInt32(&streamHandle); |
| result = flushStream(streamHandle); |
| ALOGV("BnAAudioService::onTransact FLUSH_STREAM 0x%08X, result = %d", |
| streamHandle, result); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| |
| case REGISTER_AUDIO_THREAD: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| data.readInt32(&streamHandle); |
| data.readInt32(&tid); |
| data.readInt64(&nanoseconds); |
| result = registerAudioThread(streamHandle, tid, nanoseconds); |
| ALOGV("BnAAudioService::onTransact REGISTER_AUDIO_THREAD 0x%08X, result = %d", |
| streamHandle, result); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| |
| case UNREGISTER_AUDIO_THREAD: { |
| CHECK_INTERFACE(IAAudioService, data, reply); |
| data.readInt32(&streamHandle); |
| data.readInt32(&tid); |
| result = unregisterAudioThread(streamHandle, tid); |
| ALOGV("BnAAudioService::onTransact UNREGISTER_AUDIO_THREAD 0x%08X, result = %d", |
| streamHandle, result); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| |
| default: |
| // ALOGW("BnAAudioService::onTransact not handled %u", code); |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| } |
| |
| } /* namespace android */ |
