1 /*
2  * Copyright (C) 2023 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 "AHAL_ModuleRemoteSubmix"
18 
19 #include <stdio.h>
20 #include <vector>
21 
22 #include <android-base/logging.h>
23 #include <error/expected_utils.h>
24 
25 #include "SubmixRoute.h"
26 #include "core-impl/ModuleRemoteSubmix.h"
27 #include "core-impl/StreamRemoteSubmix.h"
28 
29 using aidl::android::hardware::audio::common::SinkMetadata;
30 using aidl::android::hardware::audio::common::SourceMetadata;
31 using aidl::android::media::audio::common::AudioDeviceAddress;
32 using aidl::android::media::audio::common::AudioFormatType;
33 using aidl::android::media::audio::common::AudioIoFlags;
34 using aidl::android::media::audio::common::AudioOffloadInfo;
35 using aidl::android::media::audio::common::AudioPort;
36 using aidl::android::media::audio::common::AudioPortConfig;
37 using aidl::android::media::audio::common::AudioPortExt;
38 using aidl::android::media::audio::common::AudioProfile;
39 using aidl::android::media::audio::common::Int;
40 using aidl::android::media::audio::common::MicrophoneInfo;
41 
42 namespace aidl::android::hardware::audio::core {
43 
44 namespace {
45 
getRemoteEndConfig(const AudioPort & audioPort)46 std::optional<r_submix::AudioConfig> getRemoteEndConfig(const AudioPort& audioPort) {
47     const auto& deviceAddress = audioPort.ext.get<AudioPortExt::device>().device.address;
48     const bool isInput = audioPort.flags.getTag() == AudioIoFlags::input;
49     if (auto submixRoute = r_submix::SubmixRoute::findRoute(deviceAddress);
50         submixRoute != nullptr) {
51         if ((isInput && submixRoute->isStreamOutOpen()) ||
52             (!isInput && submixRoute->isStreamInOpen())) {
53             return submixRoute->getPipeConfig();
54         }
55     }
56     return {};
57 }
58 
59 }  // namespace
60 
getMicMute(bool * _aidl_return __unused)61 ndk::ScopedAStatus ModuleRemoteSubmix::getMicMute(bool* _aidl_return __unused) {
62     LOG(DEBUG) << __func__ << ": is not supported";
63     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
64 }
65 
setMicMute(bool in_mute __unused)66 ndk::ScopedAStatus ModuleRemoteSubmix::setMicMute(bool in_mute __unused) {
67     LOG(DEBUG) << __func__ << ": is not supported";
68     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
69 }
70 
setAudioPortConfig(const AudioPortConfig & in_requested,AudioPortConfig * out_suggested,bool * _aidl_return)71 ndk::ScopedAStatus ModuleRemoteSubmix::setAudioPortConfig(const AudioPortConfig& in_requested,
72                                                           AudioPortConfig* out_suggested,
73                                                           bool* _aidl_return) {
74     auto fillConfig = [this](const AudioPort& port, AudioPortConfig* config) {
75         if (port.ext.getTag() == AudioPortExt::device) {
76             if (auto pipeConfig = getRemoteEndConfig(port); pipeConfig.has_value()) {
77                 LOG(DEBUG) << "setAudioPortConfig: suggesting port config from the remote end.";
78                 config->format = pipeConfig->format;
79                 config->channelMask = pipeConfig->channelLayout;
80                 config->sampleRate = Int{.value = pipeConfig->sampleRate};
81                 config->flags = port.flags;
82                 config->ext = port.ext;
83                 return true;
84             }
85         }
86         return generateDefaultPortConfig(port, config);
87     };
88     return Module::setAudioPortConfigImpl(in_requested, fillConfig, out_suggested, _aidl_return);
89 }
90 
createInputStream(StreamContext && context,const SinkMetadata & sinkMetadata,const std::vector<MicrophoneInfo> & microphones,std::shared_ptr<StreamIn> * result)91 ndk::ScopedAStatus ModuleRemoteSubmix::createInputStream(
92         StreamContext&& context, const SinkMetadata& sinkMetadata,
93         const std::vector<MicrophoneInfo>& microphones, std::shared_ptr<StreamIn>* result) {
94     return createStreamInstance<StreamInRemoteSubmix>(result, std::move(context), sinkMetadata,
95                                                       microphones);
96 }
97 
createOutputStream(StreamContext && context,const SourceMetadata & sourceMetadata,const std::optional<AudioOffloadInfo> & offloadInfo,std::shared_ptr<StreamOut> * result)98 ndk::ScopedAStatus ModuleRemoteSubmix::createOutputStream(
99         StreamContext&& context, const SourceMetadata& sourceMetadata,
100         const std::optional<AudioOffloadInfo>& offloadInfo, std::shared_ptr<StreamOut>* result) {
101     return createStreamInstance<StreamOutRemoteSubmix>(result, std::move(context), sourceMetadata,
102                                                        offloadInfo);
103 }
104 
populateConnectedDevicePort(AudioPort * audioPort,int32_t)105 ndk::ScopedAStatus ModuleRemoteSubmix::populateConnectedDevicePort(AudioPort* audioPort, int32_t) {
106     if (audioPort->ext.getTag() != AudioPortExt::device) {
107         LOG(ERROR) << __func__ << ": not a device port: " << audioPort->toString();
108         return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
109     }
110     // If there is already a pipe with a stream for the port address, provide its configuration as
111     // the only option. Otherwise, find the corresponding mix port and copy its profiles.
112     if (auto pipeConfig = getRemoteEndConfig(*audioPort); pipeConfig.has_value()) {
113         audioPort->profiles.clear();
114         audioPort->profiles.push_back(AudioProfile{
115                 .format = pipeConfig->format,
116                 .channelMasks = std::vector<AudioChannelLayout>({pipeConfig->channelLayout}),
117                 .sampleRates = std::vector<int>({pipeConfig->sampleRate})});
118         LOG(DEBUG) << __func__ << ": populated from remote end as: " << audioPort->toString();
119         return ndk::ScopedAStatus::ok();
120     }
121 
122     // At this moment, the port has the same ID as the template port, see connectExternalDevice.
123     std::vector<AudioRoute*> routes = getAudioRoutesForAudioPortImpl(audioPort->id);
124     if (routes.empty()) {
125         LOG(ERROR) << __func__ << ": no routes found for the port " << audioPort->toString();
126         return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
127     }
128     const auto& route = *routes.begin();
129     AudioPort mixPort;
130     if (route->sinkPortId == audioPort->id) {
131         if (route->sourcePortIds.empty()) {
132             LOG(ERROR) << __func__ << ": invalid route " << route->toString();
133             return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
134         }
135         RETURN_STATUS_IF_ERROR(getAudioPort(*route->sourcePortIds.begin(), &mixPort));
136     } else {
137         RETURN_STATUS_IF_ERROR(getAudioPort(route->sinkPortId, &mixPort));
138     }
139     audioPort->profiles = mixPort.profiles;
140     LOG(DEBUG) << __func__ << ": populated from the mix port as: " << audioPort->toString();
141     return ndk::ScopedAStatus::ok();
142 }
143 
checkAudioPatchEndpointsMatch(const std::vector<AudioPortConfig * > & sources,const std::vector<AudioPortConfig * > & sinks)144 ndk::ScopedAStatus ModuleRemoteSubmix::checkAudioPatchEndpointsMatch(
145         const std::vector<AudioPortConfig*>& sources, const std::vector<AudioPortConfig*>& sinks) {
146     for (const auto& source : sources) {
147         for (const auto& sink : sinks) {
148             if (source->sampleRate != sink->sampleRate ||
149                 source->channelMask != sink->channelMask || source->format != sink->format) {
150                 LOG(ERROR) << __func__
151                            << ": mismatch port configuration, source=" << source->toString()
152                            << ", sink=" << sink->toString();
153                 return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
154             }
155         }
156     }
157     return ndk::ScopedAStatus::ok();
158 }
159 
onMasterMuteChanged(bool __unused)160 ndk::ScopedAStatus ModuleRemoteSubmix::onMasterMuteChanged(bool __unused) {
161     LOG(DEBUG) << __func__ << ": is not supported";
162     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
163 }
164 
onMasterVolumeChanged(float __unused)165 ndk::ScopedAStatus ModuleRemoteSubmix::onMasterVolumeChanged(float __unused) {
166     LOG(DEBUG) << __func__ << ": is not supported";
167     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
168 }
169 
getNominalLatencyMs(const AudioPortConfig &)170 int32_t ModuleRemoteSubmix::getNominalLatencyMs(const AudioPortConfig&) {
171     // See the note on kDefaultPipePeriodCount.
172     static constexpr int32_t kMaxLatencyMs =
173             (r_submix::kDefaultPipeSizeInFrames * 1000) / r_submix::kDefaultSampleRateHz;
174     static constexpr int32_t kMinLatencyMs = kMaxLatencyMs / r_submix::kDefaultPipePeriodCount;
175     return kMinLatencyMs;
176 }
177 
dump(int fd,const char **,uint32_t)178 binder_status_t ModuleRemoteSubmix::dump(int fd, const char** /*args*/, uint32_t /*numArgs*/) {
179     dprintf(fd, "\nSubmixRoutes:\n%s\n", r_submix::SubmixRoute::dumpRoutes().c_str());
180     return STATUS_OK;
181 }
182 
183 }  // namespace aidl::android::hardware::audio::core
184