1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "IAudioFlingerClient" 18 #include <utils/Log.h> 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <binder/Parcel.h> 24 25 #include <media/IAudioFlingerClient.h> 26 #include <media/AudioSystem.h> 27 28 namespace android { 29 30 enum { 31 IO_CONFIG_CHANGED = IBinder::FIRST_CALL_TRANSACTION 32 }; 33 34 class BpAudioFlingerClient : public BpInterface<IAudioFlingerClient> 35 { 36 public: 37 BpAudioFlingerClient(const sp<IBinder>& impl) 38 : BpInterface<IAudioFlingerClient>(impl) 39 { 40 } 41 42 void ioConfigChanged(int event, audio_io_handle_t ioHandle, const void *param2) 43 { 44 Parcel data, reply; 45 data.writeInterfaceToken(IAudioFlingerClient::getInterfaceDescriptor()); 46 data.writeInt32(event); 47 data.writeInt32((int32_t) ioHandle); 48 if (event == AudioSystem::STREAM_CONFIG_CHANGED) { 49 uint32_t stream = *(const uint32_t *)param2; 50 ALOGV("ioConfigChanged stream %d", stream); 51 data.writeInt32(stream); 52 } else if (event != AudioSystem::OUTPUT_CLOSED && event != AudioSystem::INPUT_CLOSED) { 53 const AudioSystem::OutputDescriptor *desc = 54 (const AudioSystem::OutputDescriptor *)param2; 55 data.writeInt32(desc->samplingRate); 56 data.writeInt32(desc->format); 57 data.writeInt32(desc->channels); 58 data.writeInt32(desc->frameCount); 59 data.writeInt32(desc->latency); 60 } 61 remote()->transact(IO_CONFIG_CHANGED, data, &reply, IBinder::FLAG_ONEWAY); 62 } 63 }; 64 65 IMPLEMENT_META_INTERFACE(AudioFlingerClient, "android.media.IAudioFlingerClient"); 66 67 // ---------------------------------------------------------------------- 68 69 status_t BnAudioFlingerClient::onTransact( 70 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 71 { 72 switch (code) { 73 case IO_CONFIG_CHANGED: { 74 CHECK_INTERFACE(IAudioFlingerClient, data, reply); 75 int event = data.readInt32(); 76 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 77 const void *param2 = NULL; 78 AudioSystem::OutputDescriptor desc; 79 uint32_t stream; 80 if (event == AudioSystem::STREAM_CONFIG_CHANGED) { 81 stream = data.readInt32(); 82 param2 = &stream; 83 ALOGV("STREAM_CONFIG_CHANGED stream %d", stream); 84 } else if (event != AudioSystem::OUTPUT_CLOSED && event != AudioSystem::INPUT_CLOSED) { 85 desc.samplingRate = data.readInt32(); 86 desc.format = data.readInt32(); 87 desc.channels = data.readInt32(); 88 desc.frameCount = data.readInt32(); 89 desc.latency = data.readInt32(); 90 param2 = &desc; 91 } 92 ioConfigChanged(event, ioHandle, param2); 93 return NO_ERROR; 94 } break; 95 default: 96 return BBinder::onTransact(code, data, reply, flags); 97 } 98 } 99 100 // ---------------------------------------------------------------------------- 101 102 }; // namespace android 103
