/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "IAudioPolicyServiceClient"
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#include <utils/Log.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/Parcel.h>
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#include <media/IAudioPolicyServiceClient.h>
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#include <media/AudioSystem.h>
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namespace android {
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enum {
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PORT_LIST_UPDATE = IBinder::FIRST_CALL_TRANSACTION,
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PATCH_LIST_UPDATE,
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MIX_STATE_UPDATE,
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RECORDING_CONFIGURATION_UPDATE,
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VOLUME_GROUP_CHANGED,
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};
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// ----------------------------------------------------------------------
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inline void readAudioConfigBaseFromParcel(const Parcel& data, audio_config_base_t *config) {
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config->sample_rate = data.readUint32();
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config->channel_mask = (audio_channel_mask_t) data.readInt32();
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config->format = (audio_format_t) data.readInt32();
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}
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inline void writeAudioConfigBaseToParcel(Parcel& data, const audio_config_base_t *config)
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{
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data.writeUint32(config->sample_rate);
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data.writeInt32((int32_t) config->channel_mask);
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data.writeInt32((int32_t) config->format);
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}
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inline void readRecordClientInfoFromParcel(const Parcel& data, record_client_info_t *clientInfo) {
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clientInfo->riid = (audio_unique_id_t) data.readInt32();
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clientInfo->uid = (uid_t) data.readUint32();
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clientInfo->session = (audio_session_t) data.readInt32();
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clientInfo->source = (audio_source_t) data.readInt32();
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data.read(&clientInfo->port_id, sizeof(audio_port_handle_t));
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clientInfo->silenced = data.readBool();
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}
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inline void writeRecordClientInfoToParcel(Parcel& data, const record_client_info_t *clientInfo) {
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data.writeInt32((int32_t) clientInfo->riid);
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data.writeUint32((uint32_t) clientInfo->uid);
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data.writeInt32((int32_t) clientInfo->session);
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data.writeInt32((int32_t) clientInfo->source);
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data.write(&clientInfo->port_id, sizeof(audio_port_handle_t));
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data.writeBool(clientInfo->silenced);
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}
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inline void readEffectVectorFromParcel(const Parcel& data,
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std::vector<effect_descriptor_t> *effects) {
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int32_t numEffects = data.readInt32();
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for (int32_t i = 0; i < numEffects; i++) {
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effect_descriptor_t effect;
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if (data.read(&effect, sizeof(effect_descriptor_t)) != NO_ERROR) {
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break;
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}
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(*effects).push_back(effect);
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}
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}
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inline void writeEffectVectorToParcel(Parcel& data, std::vector<effect_descriptor_t> effects) {
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data.writeUint32((uint32_t) effects.size());
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for (const auto& effect : effects) {
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if (data.write(&effect, sizeof(effect_descriptor_t)) != NO_ERROR) {
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break;
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}
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}
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}
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// ----------------------------------------------------------------------
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class BpAudioPolicyServiceClient : public BpInterface<IAudioPolicyServiceClient>
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{
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public:
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explicit BpAudioPolicyServiceClient(const sp<IBinder>& impl)
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: BpInterface<IAudioPolicyServiceClient>(impl)
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{
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}
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void onAudioPortListUpdate()
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{
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Parcel data, reply;
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data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
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remote()->transact(PORT_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
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}
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void onAudioPatchListUpdate()
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{
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Parcel data, reply;
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data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
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remote()->transact(PATCH_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
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}
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void onAudioVolumeGroupChanged(volume_group_t group, int flags)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
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data.writeUint32(group);
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data.writeInt32(flags);
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remote()->transact(VOLUME_GROUP_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
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}
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void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
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data.writeString8(regId);
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data.writeInt32(state);
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remote()->transact(MIX_STATE_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
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}
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void onRecordingConfigurationUpdate(int event,
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const record_client_info_t *clientInfo,
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const audio_config_base_t *clientConfig,
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std::vector<effect_descriptor_t> clientEffects,
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const audio_config_base_t *deviceConfig,
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std::vector<effect_descriptor_t> effects,
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audio_patch_handle_t patchHandle,
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audio_source_t source) {
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Parcel data, reply;
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data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
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data.writeInt32(event);
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writeRecordClientInfoToParcel(data, clientInfo);
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writeAudioConfigBaseToParcel(data, clientConfig);
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writeEffectVectorToParcel(data, clientEffects);
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writeAudioConfigBaseToParcel(data, deviceConfig);
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writeEffectVectorToParcel(data, effects);
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data.writeInt32(patchHandle);
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data.writeInt32((int32_t) source);
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remote()->transact(RECORDING_CONFIGURATION_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
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}
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};
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IMPLEMENT_META_INTERFACE(AudioPolicyServiceClient, "android.media.IAudioPolicyServiceClient");
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// ----------------------------------------------------------------------
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status_t BnAudioPolicyServiceClient::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch (code) {
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case PORT_LIST_UPDATE: {
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CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
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onAudioPortListUpdate();
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return NO_ERROR;
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} break;
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case PATCH_LIST_UPDATE: {
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CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
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onAudioPatchListUpdate();
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return NO_ERROR;
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} break;
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case VOLUME_GROUP_CHANGED: {
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CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
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volume_group_t group = static_cast<volume_group_t>(data.readUint32());
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int flags = data.readInt32();
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onAudioVolumeGroupChanged(group, flags);
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return NO_ERROR;
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} break;
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case MIX_STATE_UPDATE: {
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CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
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String8 regId = data.readString8();
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int32_t state = data.readInt32();
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onDynamicPolicyMixStateUpdate(regId, state);
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return NO_ERROR;
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} break;
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case RECORDING_CONFIGURATION_UPDATE: {
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CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
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int event = (int) data.readInt32();
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record_client_info_t clientInfo;
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audio_config_base_t clientConfig;
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audio_config_base_t deviceConfig;
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readRecordClientInfoFromParcel(data, &clientInfo);
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readAudioConfigBaseFromParcel(data, &clientConfig);
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std::vector<effect_descriptor_t> clientEffects;
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readEffectVectorFromParcel(data, &clientEffects);
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readAudioConfigBaseFromParcel(data, &deviceConfig);
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std::vector<effect_descriptor_t> effects;
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readEffectVectorFromParcel(data, &effects);
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audio_patch_handle_t patchHandle = (audio_patch_handle_t) data.readInt32();
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audio_source_t source = (audio_source_t) data.readInt32();
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onRecordingConfigurationUpdate(event, &clientInfo, &clientConfig, clientEffects,
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&deviceConfig, effects, patchHandle, source);
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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// ----------------------------------------------------------------------------
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} // namespace android
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