diff --git a/media/libaudiohal/impl/DeviceHalAidl.cpp b/media/libaudiohal/impl/DeviceHalAidl.cpp
index 280306d..1445e49 100644
--- a/media/libaudiohal/impl/DeviceHalAidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalAidl.cpp
@@ -17,6 +17,9 @@
 #define LOG_TAG "DeviceHalAidl"
 // #define LOG_NDEBUG 0
 
+#include <algorithm>
+#include <forward_list>
+
 #include <aidl/android/hardware/audio/core/StreamDescriptor.h>
 #include <error/expected_utils.h>
 #include <media/AidlConversionCppNdk.h>
@@ -28,8 +31,19 @@
 #include "StreamHalAidl.h"
 
 using aidl::android::aidl_utils::statusTFromBinderStatus;
+using aidl::android::media::audio::common::AudioConfig;
+using aidl::android::media::audio::common::AudioDevice;
+using aidl::android::media::audio::common::AudioIoFlags;
 using aidl::android::media::audio::common::AudioMode;
+using aidl::android::media::audio::common::AudioOutputFlags;
+using aidl::android::media::audio::common::AudioPort;
+using aidl::android::media::audio::common::AudioPortConfig;
+using aidl::android::media::audio::common::AudioPortExt;
+using aidl::android::media::audio::common::AudioSource;
+using aidl::android::media::audio::common::Int;
 using aidl::android::media::audio::common::Float;
+using aidl::android::hardware::audio::common::RecordTrackMetadata;
+using aidl::android::hardware::audio::core::AudioPatch;
 using aidl::android::hardware::audio::core::IModule;
 using aidl::android::hardware::audio::core::ITelephony;
 using aidl::android::hardware::audio::core::StreamDescriptor;
@@ -37,14 +51,55 @@
 
 namespace android {
 
+namespace {
+
+bool isConfigEqualToPortConfig(const AudioConfig& config, const AudioPortConfig& portConfig) {
+    return portConfig.sampleRate.value().value == config.base.sampleRate &&
+            portConfig.channelMask.value() == config.base.channelMask &&
+            portConfig.format.value() == config.base.format;
+}
+
+void setConfigFromPortConfig(AudioConfig* config, const AudioPortConfig& portConfig) {
+    config->base.sampleRate = portConfig.sampleRate.value().value;
+    config->base.channelMask = portConfig.channelMask.value();
+    config->base.format = portConfig.format.value();
+}
+
+void setPortConfigFromConfig(AudioPortConfig* portConfig, const AudioConfig& config) {
+    portConfig->sampleRate = Int{ .value = config.base.sampleRate };
+    portConfig->channelMask = config.base.channelMask;
+    portConfig->format = config.base.format;
+}
+
+}  // namespace
+
 status_t DeviceHalAidl::getSupportedDevices(uint32_t*) {
     // Obsolete.
     return INVALID_OPERATION;
 }
 
 status_t DeviceHalAidl::initCheck() {
+    TIME_CHECK();
     if (mModule == nullptr) return NO_INIT;
-    // HAL modules are already initialized by the time they are published to the SM.
+    std::vector<AudioPort> ports;
+    RETURN_STATUS_IF_ERROR(
+            statusTFromBinderStatus(mModule->getAudioPorts(&ports)));
+    ALOGW_IF(ports.empty(), "%s: module %s returned an empty list of audio ports",
+            __func__, mInstance.c_str());
+    std::transform(ports.begin(), ports.end(), std::inserter(mPorts, mPorts.end()),
+            [](const auto& p) { return std::make_pair(p.id, p); });
+    std::vector<AudioPortConfig> portConfigs;
+    RETURN_STATUS_IF_ERROR(
+            statusTFromBinderStatus(mModule->getAudioPortConfigs(&portConfigs)));  // OK if empty
+    std::transform(portConfigs.begin(), portConfigs.end(),
+            std::inserter(mPortConfigs, mPortConfigs.end()),
+            [](const auto& p) { return std::make_pair(p.id, p); });
+    std::vector<AudioPatch> patches;
+    RETURN_STATUS_IF_ERROR(
+            statusTFromBinderStatus(mModule->getAudioPatches(&patches)));  // OK if empty
+    std::transform(patches.begin(), patches.end(),
+            std::inserter(mPatches, mPatches.end()),
+            [](const auto& p) { return std::make_pair(p.id, p); });
     return OK;
 }
 
@@ -135,47 +190,152 @@
     return OK;
 }
 
+namespace {
+
+class Cleanup {
+  public:
+    typedef void (DeviceHalAidl::*Cleaner)(int32_t);
+
+    Cleanup(DeviceHalAidl* device, Cleaner cleaner, int32_t id) :
+            mDevice(device), mCleaner(cleaner), mId(id) {}
+    ~Cleanup() { clean(); }
+    void clean() {
+        if (mDevice != nullptr) (mDevice->*mCleaner)(mId);
+        disarm();
+    }
+    void disarm() { mDevice = nullptr; }
+
+  private:
+    DeviceHalAidl* mDevice;
+    const Cleaner mCleaner;
+    const int32_t mId;
+};
+
+}  // namespace
+
+// Since the order of container elements destruction is unspecified,
+// ensure that cleanups are performed from the most recent one and upwards.
+// This is the same as if there were individual Cleanup instances on the stack,
+// however the bonus is that we can disarm all of them with just one statement.
+class DeviceHalAidl::Cleanups : public std::forward_list<Cleanup> {
+  public:
+    ~Cleanups() { for (auto& c : *this) c.clean(); }
+    void disarmAll() { for (auto& c : *this) c.disarm(); }
+};
+
+status_t DeviceHalAidl::prepareToOpenStream(
+        int32_t aidlHandle, const AudioDevice& aidlDevice, const AudioIoFlags& aidlFlags,
+        struct audio_config* config,
+        Cleanups* cleanups, AudioConfig* aidlConfig, AudioPortConfig* mixPortConfig) {
+    const bool isInput = aidlFlags.getTag() == AudioIoFlags::Tag::input;
+    // Find / create AudioPortConfigs for the device port and the mix port,
+    // then find / create a patch between them, and open a stream on the mix port.
+    AudioPortConfig devicePortConfig;
+    bool created = false;
+    RETURN_STATUS_IF_ERROR(findOrCreatePortConfig(aidlDevice, &devicePortConfig, &created));
+    if (created) {
+        cleanups->emplace_front(this, &DeviceHalAidl::resetPortConfig, devicePortConfig.id);
+    }
+    RETURN_STATUS_IF_ERROR(findOrCreatePortConfig(*aidlConfig, aidlFlags, aidlHandle,
+                    mixPortConfig, &created));
+    if (created) {
+        cleanups->emplace_front(this, &DeviceHalAidl::resetPortConfig, mixPortConfig->id);
+    }
+    setConfigFromPortConfig(aidlConfig, *mixPortConfig);
+    AudioPatch patch;
+    if (isInput) {
+        RETURN_STATUS_IF_ERROR(findOrCreatePatch(
+                        {devicePortConfig.id}, {mixPortConfig->id}, &patch, &created));
+    } else {
+        RETURN_STATUS_IF_ERROR(findOrCreatePatch(
+                        {mixPortConfig->id}, {devicePortConfig.id}, &patch, &created));
+    }
+    if (created) {
+        cleanups->emplace_front(this, &DeviceHalAidl::resetPatch, patch.id);
+    }
+    if (aidlConfig->frameCount <= 0) {
+        aidlConfig->frameCount = patch.minimumStreamBufferSizeFrames;
+    }
+    *config = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::aidl2legacy_AudioConfig_audio_config_t(*aidlConfig, isInput));
+    return OK;
+}
+
 status_t DeviceHalAidl::openOutputStream(
-        audio_io_handle_t handle __unused, audio_devices_t devices __unused,
-        audio_output_flags_t flags __unused, struct audio_config* config,
-        const char* address __unused,
+        audio_io_handle_t handle, audio_devices_t devices,
+        audio_output_flags_t flags, struct audio_config* config,
+        const char* address,
         sp<StreamOutHalInterface>* outStream) {
     if (!outStream || !config) {
         return BAD_VALUE;
     }
     TIME_CHECK();
     if (!mModule) return NO_INIT;
-    config->sample_rate = 48000;
-    config->format = AUDIO_FORMAT_PCM_24_BIT_PACKED;
-    config->channel_mask = AUDIO_CHANNEL_OUT_STEREO;
-    StreamDescriptor descriptor;
-    descriptor.frameSizeBytes = audio_bytes_per_sample(config->format) *
-            audio_channel_count_from_out_mask(config->channel_mask);
-    descriptor.bufferSizeFrames = 600;
-    *outStream = sp<StreamOutHalAidl>::make(descriptor, nullptr);
+    int32_t aidlHandle = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_io_handle_t_int32_t(handle));
+    AudioConfig aidlConfig = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_config_t_AudioConfig(*config, false /*isInput*/));
+    AudioDevice aidlDevice = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_device_AudioDevice(devices, address));
+    int32_t aidlOutputFlags = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_output_flags_t_int32_t_mask(flags));
+    AudioIoFlags aidlFlags = AudioIoFlags::make<AudioIoFlags::Tag::output>(aidlOutputFlags);
+    AudioPortConfig mixPortConfig;
+    Cleanups cleanups;
+    RETURN_STATUS_IF_ERROR(prepareToOpenStream(aidlHandle, aidlDevice, aidlFlags, config,
+                    &cleanups, &aidlConfig, &mixPortConfig));
+    ::aidl::android::hardware::audio::core::IModule::OpenOutputStreamArguments args;
+    args.portConfigId = mixPortConfig.id;
+    args.offloadInfo = aidlConfig.offloadInfo;
+    args.bufferSizeFrames = aidlConfig.frameCount;
+    ::aidl::android::hardware::audio::core::IModule::OpenOutputStreamReturn ret;
+    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mModule->openOutputStream(args, &ret)));
+    *outStream = sp<StreamOutHalAidl>::make(*config, std::move(ret.desc), std::move(ret.stream));
+    cleanups.disarmAll();
     return OK;
 }
 
 status_t DeviceHalAidl::openInputStream(
-        audio_io_handle_t handle __unused, audio_devices_t devices __unused,
-        struct audio_config* config, audio_input_flags_t flags __unused,
-        const char* address __unused, audio_source_t source __unused,
-        audio_devices_t outputDevice __unused,
-        const char* outputDeviceAddress __unused,
+        audio_io_handle_t handle, audio_devices_t devices,
+        struct audio_config* config, audio_input_flags_t flags,
+        const char* address, audio_source_t source,
+        audio_devices_t outputDevice, const char* outputDeviceAddress,
         sp<StreamInHalInterface>* inStream) {
     if (!inStream || !config) {
         return BAD_VALUE;
     }
     TIME_CHECK();
     if (!mModule) return NO_INIT;
-    config->sample_rate = 48000;
-    config->format = AUDIO_FORMAT_PCM_24_BIT_PACKED;
-    config->channel_mask = AUDIO_CHANNEL_IN_STEREO;
-    StreamDescriptor descriptor;
-    descriptor.frameSizeBytes = audio_bytes_per_sample(config->format) *
-            audio_channel_count_from_out_mask(config->channel_mask);
-    descriptor.bufferSizeFrames = 600;
-    *inStream = sp<StreamInHalAidl>::make(descriptor, nullptr);
+    int32_t aidlHandle = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_io_handle_t_int32_t(handle));
+    AudioConfig aidlConfig = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_config_t_AudioConfig(*config, true /*isInput*/));
+    AudioDevice aidlDevice = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_device_AudioDevice(devices, address));
+    int32_t aidlInputFlags = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_input_flags_t_int32_t_mask(flags));
+    AudioIoFlags aidlFlags = AudioIoFlags::make<AudioIoFlags::Tag::input>(aidlInputFlags);
+    AudioSource aidlSource = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_source_t_AudioSource(source));
+    AudioPortConfig mixPortConfig;
+    Cleanups cleanups;
+    RETURN_STATUS_IF_ERROR(prepareToOpenStream(aidlHandle, aidlDevice, aidlFlags, config,
+                    &cleanups, &aidlConfig, &mixPortConfig));
+    ::aidl::android::hardware::audio::core::IModule::OpenInputStreamArguments args;
+    args.portConfigId = mixPortConfig.id;
+    RecordTrackMetadata aidlTrackMetadata{
+        .source = aidlSource, .gain = 1, .channelMask = aidlConfig.base.channelMask };
+    if (outputDevice != AUDIO_DEVICE_NONE) {
+        aidlTrackMetadata.destinationDevice = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::legacy2aidl_audio_device_AudioDevice(
+                    outputDevice, outputDeviceAddress));
+    }
+    args.sinkMetadata.tracks.push_back(std::move(aidlTrackMetadata));
+    args.bufferSizeFrames = aidlConfig.frameCount;
+    ::aidl::android::hardware::audio::core::IModule::OpenInputStreamReturn ret;
+    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mModule->openInputStream(args, &ret)));
+    *inStream = sp<StreamInHalAidl>::make(*config, std::move(ret.desc), std::move(ret.stream));
+    cleanups.disarmAll();
     return OK;
 }
 
@@ -184,21 +344,104 @@
     return OK;
 }
 
-status_t DeviceHalAidl::createAudioPatch(unsigned int num_sources __unused,
-                                         const struct audio_port_config* sources __unused,
-                                         unsigned int num_sinks __unused,
-                                         const struct audio_port_config* sinks __unused,
-                                         audio_patch_handle_t* patch __unused) {
+status_t DeviceHalAidl::createAudioPatch(unsigned int num_sources,
+                                         const struct audio_port_config* sources,
+                                         unsigned int num_sinks,
+                                         const struct audio_port_config* sinks,
+                                         audio_patch_handle_t* patch) {
     TIME_CHECK();
     if (!mModule) return NO_INIT;
-    ALOGE("%s not implemented yet", __func__);
+    if (num_sinks > AUDIO_PATCH_PORTS_MAX || num_sources > AUDIO_PATCH_PORTS_MAX ||
+        sources == nullptr || sinks == nullptr || patch == nullptr) {
+        return BAD_VALUE;
+    }
+    // Note that the patch handle (*patch) is provided by the framework.
+    // In tests it's possible that its value is AUDIO_PATCH_HANDLE_NONE.
+
+    // Upon conversion, mix port configs contain audio configuration, while
+    // device port configs contain device address. This data is used to find
+    // or create HAL configs.
+    std::vector<AudioPortConfig> aidlSources, aidlSinks;
+    for (unsigned int i = 0; i < num_sources; ++i) {
+        bool isInput = VALUE_OR_RETURN_STATUS(::aidl::android::portDirection(
+                        sources[i].role, sources[i].type)) ==
+                ::aidl::android::AudioPortDirection::INPUT;
+        aidlSources.push_back(VALUE_OR_RETURN_STATUS(
+                        ::aidl::android::legacy2aidl_audio_port_config_AudioPortConfig(
+                                sources[i], isInput, 0)));
+    }
+    for (unsigned int i = 0; i < num_sinks; ++i) {
+        bool isInput = VALUE_OR_RETURN_STATUS(::aidl::android::portDirection(
+                        sinks[i].role, sinks[i].type)) ==
+                ::aidl::android::AudioPortDirection::INPUT;
+        aidlSinks.push_back(VALUE_OR_RETURN_STATUS(
+                        ::aidl::android::legacy2aidl_audio_port_config_AudioPortConfig(
+                                sinks[i], isInput, 0)));
+    }
+    Cleanups cleanups;
+    auto existingPatchIt = mPatches.end();
+    auto fwkHandlesIt = *patch != AUDIO_PATCH_HANDLE_NONE ?
+            mFwkHandles.find(*patch) : mFwkHandles.end();
+    AudioPatch aidlPatch;
+    if (fwkHandlesIt != mFwkHandles.end()) {
+        existingPatchIt = mPatches.find(fwkHandlesIt->second);
+        if (existingPatchIt != mPatches.end()) {
+            aidlPatch = existingPatchIt->second;
+            aidlPatch.sourcePortConfigIds.clear();
+            aidlPatch.sinkPortConfigIds.clear();
+        }
+    }
+    auto fillPortConfigs = [&](
+            const std::vector<AudioPortConfig>& configs, std::vector<int32_t>* ids) -> status_t {
+        for (const auto& s : configs) {
+            AudioPortConfig portConfig;
+            bool created = false;
+            RETURN_STATUS_IF_ERROR(findOrCreatePortConfig(s, &portConfig, &created));
+            if (created) {
+                cleanups.emplace_front(this, &DeviceHalAidl::resetPortConfig, portConfig.id);
+            }
+            ids->push_back(portConfig.id);
+        }
+        return OK;
+    };
+    RETURN_STATUS_IF_ERROR(fillPortConfigs(aidlSources, &aidlPatch.sourcePortConfigIds));
+    RETURN_STATUS_IF_ERROR(fillPortConfigs(aidlSinks, &aidlPatch.sinkPortConfigIds));
+    if (existingPatchIt != mPatches.end()) {
+        RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(
+                        mModule->setAudioPatch(aidlPatch, &aidlPatch)));
+        existingPatchIt->second = aidlPatch;
+    } else {
+        bool created = false;
+        RETURN_STATUS_IF_ERROR(findOrCreatePatch(aidlPatch, &aidlPatch, &created));
+        // Since no cleanup of the patch is needed, 'created' is ignored.
+        if (fwkHandlesIt != mFwkHandles.end()) {
+            fwkHandlesIt->second = aidlPatch.id;
+            // Patch handle (*patch) stays the same.
+        } else {
+            if (*patch == AUDIO_PATCH_HANDLE_NONE) {
+                // This isn't good as the module can't provide a handle which is really unique.
+                // However, this situation should only happen in tests.
+                *patch = aidlPatch.id;
+                LOG_ALWAYS_FATAL_IF(mFwkHandles.count(*patch) > 0,
+                        "%s: patch id %d clashes with another framework patch handle",
+                        __func__, *patch);
+            }
+            mFwkHandles.emplace(*patch, aidlPatch.id);
+        }
+    }
+    cleanups.disarmAll();
     return OK;
 }
 
-status_t DeviceHalAidl::releaseAudioPatch(audio_patch_handle_t patch __unused) {
+status_t DeviceHalAidl::releaseAudioPatch(audio_patch_handle_t patch) {
     TIME_CHECK();
     if (!mModule) return NO_INIT;
-    ALOGE("%s not implemented yet", __func__);
+    auto idMapIt = mFwkHandles.find(patch);
+    if (idMapIt == mFwkHandles.end()) {
+        return BAD_VALUE;
+    }
+    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mModule->resetAudioPatch(idMapIt->second)));
+    mFwkHandles.erase(idMapIt);
     return OK;
 }
 
@@ -308,4 +551,253 @@
     return OK;
 }
 
+status_t DeviceHalAidl::createPortConfig(const AudioPortConfig& requestedPortConfig,
+        AudioPortConfig* appliedPortConfig) {
+    TIME_CHECK();
+    bool applied = false;
+    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mModule->setAudioPortConfig(
+                            requestedPortConfig, appliedPortConfig, &applied)));
+    if (!applied) {
+        RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mModule->setAudioPortConfig(
+                                *appliedPortConfig, appliedPortConfig, &applied)));
+        if (!applied) {
+            ALOGE("%s: module %s did not apply suggested config %s",
+                    __func__, mInstance.c_str(), appliedPortConfig->toString().c_str());
+            return NO_INIT;
+        }
+    }
+    mPortConfigs.emplace(appliedPortConfig->id, *appliedPortConfig);
+    return OK;
+}
+
+status_t DeviceHalAidl::findOrCreatePatch(
+        const AudioPatch& requestedPatch, AudioPatch* patch, bool* created) {
+    std::set<int32_t> sourcePortConfigIds(requestedPatch.sourcePortConfigIds.begin(),
+            requestedPatch.sourcePortConfigIds.end());
+    std::set<int32_t> sinkPortConfigIds(requestedPatch.sinkPortConfigIds.begin(),
+            requestedPatch.sinkPortConfigIds.end());
+    return findOrCreatePatch(sourcePortConfigIds, sinkPortConfigIds, patch, created);
+}
+
+status_t DeviceHalAidl::findOrCreatePatch(
+        const std::set<int32_t>& sourcePortConfigIds, const std::set<int32_t>& sinkPortConfigIds,
+        AudioPatch* patch, bool* created) {
+    auto patchIt = findPatch(sourcePortConfigIds, sinkPortConfigIds);
+    if (patchIt == mPatches.end()) {
+        TIME_CHECK();
+        AudioPatch requestedPatch, appliedPatch;
+        requestedPatch.sourcePortConfigIds.insert(requestedPatch.sourcePortConfigIds.end(),
+                sourcePortConfigIds.begin(), sourcePortConfigIds.end());
+        requestedPatch.sinkPortConfigIds.insert(requestedPatch.sinkPortConfigIds.end(),
+                sinkPortConfigIds.begin(), sinkPortConfigIds.end());
+        RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mModule->setAudioPatch(
+                                requestedPatch, &appliedPatch)));
+        patchIt = mPatches.insert(mPatches.end(), std::make_pair(appliedPatch.id, appliedPatch));
+        *created = true;
+    } else {
+        *created = false;
+    }
+    *patch = patchIt->second;
+    return OK;
+}
+
+status_t DeviceHalAidl::findOrCreatePortConfig(const AudioDevice& device,
+        AudioPortConfig* portConfig, bool* created) {
+    auto portConfigIt = findPortConfig(device);
+    if (portConfigIt == mPortConfigs.end()) {
+        auto portsIt = findPort(device);
+        if (portsIt == mPorts.end()) {
+            ALOGE("%s: device port for device %s is not found in the module %s",
+                    __func__, device.toString().c_str(), mInstance.c_str());
+            return BAD_VALUE;
+        }
+        AudioPortConfig requestedPortConfig;
+        requestedPortConfig.portId = portsIt->first;
+        AudioPortConfig appliedPortConfig;
+        RETURN_STATUS_IF_ERROR(createPortConfig(requestedPortConfig, &appliedPortConfig));
+        portConfigIt = mPortConfigs.insert(
+                mPortConfigs.end(), std::make_pair(appliedPortConfig.id, appliedPortConfig));
+        *created = true;
+    } else {
+        *created = false;
+    }
+    *portConfig = portConfigIt->second;
+    return OK;
+}
+
+status_t DeviceHalAidl::findOrCreatePortConfig(
+        const AudioConfig& config, const AudioIoFlags& flags, int32_t ioHandle,
+        AudioPortConfig* portConfig, bool* created) {
+    auto portConfigIt = findPortConfig(config, flags, ioHandle);
+    if (portConfigIt == mPortConfigs.end()) {
+        auto portsIt = findPort(config, flags);
+        if (portsIt == mPorts.end()) {
+            ALOGE("%s: mix port for config %s, flags %s is not found in the module %s",
+                    __func__, config.toString().c_str(), flags.toString().c_str(),
+                    mInstance.c_str());
+            return BAD_VALUE;
+        }
+        AudioPortConfig requestedPortConfig;
+        requestedPortConfig.portId = portsIt->first;
+        setPortConfigFromConfig(&requestedPortConfig, config);
+        AudioPortConfig appliedPortConfig;
+        RETURN_STATUS_IF_ERROR(createPortConfig(requestedPortConfig, &appliedPortConfig));
+        appliedPortConfig.ext.get<AudioPortExt::Tag::mix>().handle = ioHandle;
+        portConfigIt = mPortConfigs.insert(
+                mPortConfigs.end(), std::make_pair(appliedPortConfig.id, appliedPortConfig));
+        *created = true;
+    } else {
+        *created = false;
+    }
+    *portConfig = portConfigIt->second;
+    return OK;
+}
+
+status_t DeviceHalAidl::findOrCreatePortConfig(
+        const AudioPortConfig& requestedPortConfig, AudioPortConfig* portConfig, bool* created) {
+    using Tag = AudioPortExt::Tag;
+    if (requestedPortConfig.ext.getTag() == Tag::mix) {
+        if (const auto& p = requestedPortConfig;
+                !p.sampleRate.has_value() || !p.channelMask.has_value() ||
+                !p.format.has_value() || !p.flags.has_value()) {
+            ALOGW("%s: provided mix port config is not fully specified: %s",
+                    __func__, p.toString().c_str());
+            return BAD_VALUE;
+        }
+        AudioConfig config;
+        setConfigFromPortConfig(&config, requestedPortConfig);
+        return findOrCreatePortConfig(config, requestedPortConfig.flags.value(),
+                requestedPortConfig.ext.get<Tag::mix>().handle, portConfig, created);
+    } else if (requestedPortConfig.ext.getTag() == Tag::device) {
+        return findOrCreatePortConfig(
+                requestedPortConfig.ext.get<Tag::device>().device, portConfig, created);
+    }
+    ALOGW("%s: unsupported audio port config: %s",
+            __func__, requestedPortConfig.toString().c_str());
+    return BAD_VALUE;
+}
+
+DeviceHalAidl::Patches::iterator DeviceHalAidl::findPatch(
+        const std::set<int32_t>& sourcePortConfigIds, const std::set<int32_t>& sinkPortConfigIds) {
+    return std::find_if(mPatches.begin(), mPatches.end(),
+            [&](const auto& pair) {
+                const auto& p = pair.second;
+                std::set<int32_t> patchSrcs(
+                        p.sourcePortConfigIds.begin(), p.sourcePortConfigIds.end());
+                std::set<int32_t> patchSinks(
+                        p.sinkPortConfigIds.begin(), p.sinkPortConfigIds.end());
+                return sourcePortConfigIds == patchSrcs && sinkPortConfigIds == patchSinks; });
+}
+
+DeviceHalAidl::Ports::iterator DeviceHalAidl::findPort(const AudioDevice& device) {
+    using Tag = AudioPortExt::Tag;
+    return std::find_if(mPorts.begin(), mPorts.end(),
+            [&](const auto& pair) {
+                const auto& p = pair.second;
+                return p.ext.getTag() == Tag::device &&
+                        p.ext.template get<Tag::device>().device == device; });
+}
+
+DeviceHalAidl::Ports::iterator DeviceHalAidl::findPort(
+            const AudioConfig& config, const AudioIoFlags& flags) {
+    using Tag = AudioPortExt::Tag;
+    return std::find_if(mPorts.begin(), mPorts.end(),
+            [&](const auto& pair) {
+                const auto& p = pair.second;
+                return p.ext.getTag() == Tag::mix &&
+                        p.flags == flags &&
+                        std::find_if(p.profiles.begin(), p.profiles.end(),
+                                [&](const auto& prof) {
+                                    return prof.format == config.base.format &&
+                                            std::find(prof.channelMasks.begin(),
+                                                    prof.channelMasks.end(),
+                                                    config.base.channelMask) !=
+                                            prof.channelMasks.end() &&
+                                            std::find(prof.sampleRates.begin(),
+                                                    prof.sampleRates.end(),
+                                                    config.base.sampleRate) !=
+                                            prof.sampleRates.end();
+                                }) != p.profiles.end(); });
+}
+
+DeviceHalAidl::PortConfigs::iterator DeviceHalAidl::findPortConfig(const AudioDevice& device) {
+    using Tag = AudioPortExt::Tag;
+    return std::find_if(mPortConfigs.begin(), mPortConfigs.end(),
+            [&](const auto& pair) {
+                const auto& p = pair.second;
+                return p.ext.getTag() == Tag::device &&
+                        p.ext.template get<Tag::device>().device == device; });
+}
+
+DeviceHalAidl::PortConfigs::iterator DeviceHalAidl::findPortConfig(
+            const AudioConfig& config, const AudioIoFlags& flags, int32_t ioHandle) {
+    using Tag = AudioPortExt::Tag;
+    return std::find_if(mPortConfigs.begin(), mPortConfigs.end(),
+            [&](const auto& pair) {
+                const auto& p = pair.second;
+                LOG_ALWAYS_FATAL_IF(p.ext.getTag() == Tag::mix &&
+                        !p.sampleRate.has_value() || !p.channelMask.has_value() ||
+                        !p.format.has_value() || !p.flags.has_value(),
+                        "%s: stored mix port config is not fully specified: %s",
+                        __func__, p.toString().c_str());
+                return p.ext.getTag() == Tag::mix &&
+                        isConfigEqualToPortConfig(config, p) &&
+                        p.flags.value() == flags &&
+                        p.ext.template get<Tag::mix>().handle == ioHandle; });
+}
+/*
+DeviceHalAidl::PortConfigs::iterator DeviceHalAidl::findPortConfig(
+        const AudioPortConfig& portConfig) {
+    using Tag = AudioPortExt::Tag;
+    if (portConfig.ext.getTag() == Tag::mix) {
+        return std::find_if(mPortConfigs.begin(), mPortConfigs.end(),
+                [&](const auto& pair) {
+                    const auto& p = pair.second;
+                    LOG_ALWAYS_FATAL_IF(p.ext.getTag() == Tag::mix &&
+                            !p.sampleRate.has_value() || !p.channelMask.has_value() ||
+                            !p.format.has_value() || !p.flags.has_value(),
+                            "%s: stored mix port config is not fully specified: %s",
+                            __func__, p.toString().c_str());
+                    return p.ext.getTag() == Tag::mix &&
+                            (!portConfig.sampleRate.has_value() ||
+                                    p.sampleRate == portConfig.sampleRate) &&
+                            (!portConfig.channelMask.has_value() ||
+                                    p.channelMask == portConfig.channelMask) &&
+                            (!portConfig.format.has_value() || p.format == portConfig.format) &&
+                            (!portConfig.flags.has_value() || p.flags == portConfig.flags) &&
+                            p.ext.template get<Tag::mix>().handle ==
+                            portConfig.ext.template get<Tag::mix>().handle; });
+    } else if (portConfig.ext.getTag() == Tag::device) {
+        return findPortConfig(portConfig.ext.get<Tag::device>().device);
+    }
+    return mPortConfigs.end();
+}
+*/
+void DeviceHalAidl::resetPatch(int32_t patchId) {
+    if (auto it = mPatches.find(patchId); it != mPatches.end()) {
+        mPatches.erase(it);
+        TIME_CHECK();
+        if (ndk::ScopedAStatus status = mModule->resetAudioPatch(patchId); !status.isOk()) {
+            ALOGE("%s: error while resetting patch %d: %s",
+                    __func__, patchId, status.getDescription().c_str());
+        }
+        return;
+    }
+    ALOGE("%s: patch id %d not found", __func__, patchId);
+}
+
+void DeviceHalAidl::resetPortConfig(int32_t portConfigId) {
+    if (auto it = mPortConfigs.find(portConfigId); it != mPortConfigs.end()) {
+        mPortConfigs.erase(it);
+        TIME_CHECK();
+        if (ndk::ScopedAStatus status = mModule->resetAudioPortConfig(portConfigId);
+                !status.isOk()) {
+            ALOGE("%s: error while resetting port config %d: %s",
+                    __func__, portConfigId, status.getDescription().c_str());
+        }
+        return;
+    }
+    ALOGE("%s: port config id %d not found", __func__, portConfigId);
+}
+
 } // namespace android
diff --git a/media/libaudiohal/impl/DeviceHalAidl.h b/media/libaudiohal/impl/DeviceHalAidl.h
index b1aa351..0662cf2 100644
--- a/media/libaudiohal/impl/DeviceHalAidl.h
+++ b/media/libaudiohal/impl/DeviceHalAidl.h
@@ -16,8 +16,12 @@
 
 #pragma once
 
-#include <aidl/android/hardware/audio/core/sounddose/BpSoundDose.h>
+#include <map>
+#include <set>
+#include <vector>
+
 #include <aidl/android/hardware/audio/core/BpModule.h>
+#include <aidl/android/hardware/audio/core/sounddose/BpSoundDose.h>
 #include <media/audiohal/DeviceHalInterface.h>
 #include <media/audiohal/EffectHalInterface.h>
 
@@ -123,17 +127,77 @@
 
   private:
     friend class sp<DeviceHalAidl>;
+    using Patches = std::map<int32_t /*patch ID*/,
+            ::aidl::android::hardware::audio::core::AudioPatch>;
+    using PortConfigs = std::map<int32_t /*port config ID*/,
+            ::aidl::android::media::audio::common::AudioPortConfig>;
+    using Ports = std::map<int32_t /*port ID*/, ::aidl::android::media::audio::common::AudioPort>;
+    class Cleanups;
 
+    // Must not be constructed directly by clients.
+    DeviceHalAidl(
+            const std::string& instance,
+            const std::shared_ptr<::aidl::android::hardware::audio::core::IModule>& module)
+            : ConversionHelperAidl("DeviceHalAidl"), mInstance(instance), mModule(module) {}
+
+    ~DeviceHalAidl() override = default;
+
+    status_t createPortConfig(
+            const ::aidl::android::media::audio::common::AudioPortConfig& requestedPortConfig,
+            ::aidl::android::media::audio::common::AudioPortConfig* appliedPortConfig);
+    status_t findOrCreatePatch(
+        const std::set<int32_t>& sourcePortConfigIds,
+        const std::set<int32_t>& sinkPortConfigIds,
+        ::aidl::android::hardware::audio::core::AudioPatch* patch, bool* created);
+    status_t findOrCreatePatch(
+        const ::aidl::android::hardware::audio::core::AudioPatch& requestedPatch,
+        ::aidl::android::hardware::audio::core::AudioPatch* patch, bool* created);
+    status_t findOrCreatePortConfig(
+            const ::aidl::android::media::audio::common::AudioDevice& device,
+            ::aidl::android::media::audio::common::AudioPortConfig* portConfig,
+            bool* created);
+    status_t findOrCreatePortConfig(
+            const ::aidl::android::media::audio::common::AudioConfig& config,
+            const ::aidl::android::media::audio::common::AudioIoFlags& flags,
+            int32_t ioHandle,
+            ::aidl::android::media::audio::common::AudioPortConfig* portConfig, bool* created);
+    status_t findOrCreatePortConfig(
+        const ::aidl::android::media::audio::common::AudioPortConfig& requestedPortConfig,
+        ::aidl::android::media::audio::common::AudioPortConfig* portConfig, bool* created);
+    Patches::iterator findPatch(const std::set<int32_t>& sourcePortConfigIds,
+            const std::set<int32_t>& sinkPortConfigIds);
+    Ports::iterator findPort(const ::aidl::android::media::audio::common::AudioDevice& device);
+    Ports::iterator findPort(
+            const ::aidl::android::media::audio::common::AudioConfig& config,
+            const ::aidl::android::media::audio::common::AudioIoFlags& flags);
+    PortConfigs::iterator findPortConfig(
+            const ::aidl::android::media::audio::common::AudioDevice& device);
+    PortConfigs::iterator findPortConfig(
+            const ::aidl::android::media::audio::common::AudioConfig& config,
+            const ::aidl::android::media::audio::common::AudioIoFlags& flags,
+            int32_t ioHandle);
+    // Currently unused but may be useful for implementing setAudioPortConfig
+    // PortConfigs::iterator findPortConfig(
+    //         const ::aidl::android::media::audio::common::AudioPortConfig& portConfig);
+    status_t prepareToOpenStream(
+        int32_t aidlHandle,
+        const ::aidl::android::media::audio::common::AudioDevice& aidlDevice,
+        const ::aidl::android::media::audio::common::AudioIoFlags& aidlFlags,
+        struct audio_config* config,
+        Cleanups* cleanups,
+        ::aidl::android::media::audio::common::AudioConfig* aidlConfig,
+        ::aidl::android::media::audio::common::AudioPortConfig* mixPortConfig);
+    void resetPatch(int32_t patchId);
+    void resetPortConfig(int32_t portConfigId);
+
+    const std::string mInstance;
     const std::shared_ptr<::aidl::android::hardware::audio::core::IModule> mModule;
     std::shared_ptr<::aidl::android::hardware::audio::core::sounddose::ISoundDose>
         mSoundDose = nullptr;
-
-    // Can not be constructed directly by clients.
-    explicit DeviceHalAidl(
-            const std::shared_ptr<::aidl::android::hardware::audio::core::IModule>& module)
-            : ConversionHelperAidl("DeviceHalAidl"), mModule(module) {}
-
-    ~DeviceHalAidl() override = default;
+    Ports mPorts;
+    PortConfigs mPortConfigs;
+    Patches mPatches;
+    std::map<audio_patch_handle_t, int32_t /* patch ID */> mFwkHandles;
 };
 
 } // namespace android
diff --git a/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp b/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp
index 78d03e7..b452fa3 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp
+++ b/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp
@@ -57,7 +57,7 @@
     }
     // If the service is a nullptr, the device will not be really functional,
     // but will not crash either.
-    *device = sp<DeviceHalAidl>::make(service);
+    *device = sp<DeviceHalAidl>::make(name, service);
     return OK;
 }
 
diff --git a/media/libaudiohal/impl/StreamHalAidl.cpp b/media/libaudiohal/impl/StreamHalAidl.cpp
index 1c6a014..2b7856b 100644
--- a/media/libaudiohal/impl/StreamHalAidl.cpp
+++ b/media/libaudiohal/impl/StreamHalAidl.cpp
@@ -46,10 +46,11 @@
 }
 
 StreamHalAidl::StreamHalAidl(
-        std::string_view className, bool isInput, const StreamDescriptor& descriptor,
-        const std::shared_ptr<IStreamCommon>& stream)
+        std::string_view className, bool isInput, const audio_config& config,
+        const StreamDescriptor& descriptor, const std::shared_ptr<IStreamCommon>& stream)
         : ConversionHelperAidl(className),
           mIsInput(isInput),
+          mConfig(configToBase(config)),
           mFrameSizeBytes(descriptor.frameSizeBytes),
           mBufferSizeFrames(descriptor.bufferSizeFrames),
           mCommandMQ(new CommandMQ(descriptor.command)),
@@ -76,7 +77,7 @@
     if (size == nullptr) {
         return BAD_VALUE;
     }
-    if (mFrameSizeBytes == 0 || mBufferSizeFrames == 0) {
+    if (mFrameSizeBytes == 0 || mBufferSizeFrames == 0 || !mStream) {
         return NO_INIT;
     }
     *size = mFrameSizeBytes * mBufferSizeFrames;
@@ -87,13 +88,8 @@
     if (configBase == nullptr) {
         return BAD_VALUE;
     }
-    TIME_CHECK();
-    *configBase = AUDIO_CONFIG_BASE_INITIALIZER;
-    configBase->sample_rate = 48000;
-    configBase->format = AUDIO_FORMAT_PCM_24_BIT_PACKED;
-    configBase->channel_mask = mIsInput ? AUDIO_CHANNEL_IN_STEREO : AUDIO_CHANNEL_OUT_STEREO;
-    // if (!mStream) return NO_INIT;
-    ALOGE("%s not implemented yet", __func__);
+    if (!mStream) return NO_INIT;
+    *configBase = mConfig;
     return OK;
 }
 
@@ -116,7 +112,7 @@
     if (size == nullptr) {
         return BAD_VALUE;
     }
-    if (mFrameSizeBytes == 0) {
+    if (mFrameSizeBytes == 0 || !mStream) {
         return NO_INIT;
     }
     *size = mFrameSizeBytes;
@@ -140,6 +136,9 @@
 status_t StreamHalAidl::standby() {
     TIME_CHECK();
     if (!mStream) return NO_INIT;
+    if (mState == StreamDescriptor::State::STANDBY) {
+        return OK;
+    }
     ALOGE("%s not implemented yet", __func__);
     return OK;
 }
@@ -180,7 +179,7 @@
 }
 
 status_t StreamHalAidl::setHalThreadPriority(int priority __unused) {
-    mHalThreadPriority = priority;
+    // Obsolete, must be done by the HAL module.
     return OK;
 }
 
@@ -192,12 +191,8 @@
 }
 
 bool StreamHalAidl::requestHalThreadPriority(pid_t threadPid __unused, pid_t threadId __unused) {
-    if (mHalThreadPriority == HAL_THREAD_PRIORITY_DEFAULT) {
-        return true;
-    }
-    if (!mStream) return NO_INIT;
-    ALOGE("%s not implemented yet", __func__);
-    return OK;
+    // Obsolete, must be done by the HAL module.
+    return true;
 }
 
 status_t StreamHalAidl::legacyCreateAudioPatch(const struct audio_port_config& port __unused,
@@ -244,8 +239,10 @@
 }  // namespace
 
 StreamOutHalAidl::StreamOutHalAidl(
+        const audio_config& config,
         const StreamDescriptor& descriptor, const std::shared_ptr<IStreamOut>& stream)
-        : StreamHalAidl("StreamOutHalAidl", false /*isInput*/, descriptor, getStreamCommon(stream)),
+        : StreamHalAidl("StreamOutHalAidl", false /*isInput*/, config,
+                descriptor, getStreamCommon(stream)),
           mStream(stream) {}
 
 status_t StreamOutHalAidl::getLatency(uint32_t *latency) {
@@ -360,34 +357,55 @@
 }
 
 status_t StreamOutHalAidl::getDualMonoMode(audio_dual_mono_mode_t* mode __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamOutHalAidl::setDualMonoMode(audio_dual_mono_mode_t mode __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamOutHalAidl::getAudioDescriptionMixLevel(float* leveldB __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamOutHalAidl::setAudioDescriptionMixLevel(float leveldB __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamOutHalAidl::getPlaybackRateParameters(
         audio_playback_rate_t* playbackRate __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamOutHalAidl::setPlaybackRateParameters(
         const audio_playback_rate_t& playbackRate __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamOutHalAidl::setEventCallback(
         const sp<StreamOutHalInterfaceEventCallback>& callback __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 namespace {
@@ -401,17 +419,26 @@
 }  // namespace
 
 status_t StreamOutHalAidl::setLatencyMode(audio_latency_mode_t mode __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 };
 
 status_t StreamOutHalAidl::getRecommendedLatencyModes(
         std::vector<audio_latency_mode_t> *modes __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 };
 
 status_t StreamOutHalAidl::setLatencyModeCallback(
         const sp<StreamOutHalInterfaceLatencyModeCallback>& callback __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 };
 
 void StreamOutHalAidl::onWriteReady() {
@@ -458,8 +485,10 @@
 }
 
 StreamInHalAidl::StreamInHalAidl(
+        const audio_config& config,
         const StreamDescriptor& descriptor, const std::shared_ptr<IStreamIn>& stream)
-        : StreamHalAidl("StreamInHalAidl", true /*isInput*/, descriptor, getStreamCommon(stream)),
+        : StreamHalAidl("StreamInHalAidl", true /*isInput*/, config,
+                descriptor, getStreamCommon(stream)),
           mStream(stream) {}
 
 status_t StreamInHalAidl::setGain(float gain __unused) {
@@ -494,24 +523,33 @@
 
 status_t StreamInHalAidl::getActiveMicrophones(
         std::vector<media::MicrophoneInfo> *microphones __unused) {
-    if (mStream == 0) return NO_INIT;
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamInHalAidl::updateSinkMetadata(
         const StreamInHalInterface::SinkMetadata& sinkMetadata  __unused) {
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamInHalAidl::setPreferredMicrophoneDirection(
             audio_microphone_direction_t direction __unused) {
-    if (mStream == 0) return NO_INIT;
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 status_t StreamInHalAidl::setPreferredMicrophoneFieldDimension(float zoom __unused) {
-    if (mStream == 0) return NO_INIT;
-    return INVALID_OPERATION;
+    TIME_CHECK();
+    if (!mStream) return NO_INIT;
+    ALOGE("%s not implemented yet", __func__);
+    return OK;
 }
 
 } // namespace android
diff --git a/media/libaudiohal/impl/StreamHalAidl.h b/media/libaudiohal/impl/StreamHalAidl.h
index c56d5e3..e55c413 100644
--- a/media/libaudiohal/impl/StreamHalAidl.h
+++ b/media/libaudiohal/impl/StreamHalAidl.h
@@ -101,6 +101,7 @@
     // Subclasses can not be constructed directly by clients.
     StreamHalAidl(std::string_view className,
             bool isInput,
+            const audio_config& config,
             const ::aidl::android::hardware::audio::core::StreamDescriptor& descriptor,
             const std::shared_ptr<::aidl::android::hardware::audio::core::IStreamCommon>& stream);
 
@@ -111,6 +112,7 @@
     bool requestHalThreadPriority(pid_t threadPid, pid_t threadId);
 
     const bool mIsInput;
+    const audio_config_base_t mConfig;
     const size_t mFrameSizeBytes;
     const size_t mBufferSizeFrames;
     const std::unique_ptr<CommandMQ> mCommandMQ;
@@ -118,8 +120,17 @@
     const std::unique_ptr<DataMQ> mDataMQ;
     // mStreamPowerLog is used for audio signal power logging.
     StreamPowerLog mStreamPowerLog;
+    ::aidl::android::hardware::audio::core::StreamDescriptor::State mState =
+              ::aidl::android::hardware::audio::core::StreamDescriptor::State::STANDBY;
 
   private:
+    static audio_config_base_t configToBase(const audio_config& config) {
+        audio_config_base_t result = AUDIO_CONFIG_BASE_INITIALIZER;
+        result.sample_rate = config.sample_rate;
+        result.channel_mask = config.channel_mask;
+        result.format = config.format;
+        return result;
+    }
     static std::unique_ptr<DataMQ> maybeCreateDataMQ(
             const ::aidl::android::hardware::audio::core::StreamDescriptor& descriptor) {
         using Tag = ::aidl::android::hardware::audio::core::StreamDescriptor::AudioBuffer::Tag;
@@ -129,9 +140,7 @@
         return nullptr;
     }
 
-    const int HAL_THREAD_PRIORITY_DEFAULT = -1;
     const std::shared_ptr<::aidl::android::hardware::audio::core::IStreamCommon> mStream;
-    int mHalThreadPriority = HAL_THREAD_PRIORITY_DEFAULT;
 };
 
 class StreamOutHalAidl : public StreamOutHalInterface, public StreamHalAidl {
@@ -230,6 +239,7 @@
 
     // Can not be constructed directly by clients.
     StreamOutHalAidl(
+            const audio_config& config,
             const ::aidl::android::hardware::audio::core::StreamDescriptor& descriptor,
             const std::shared_ptr<::aidl::android::hardware::audio::core::IStreamOut>& stream);
 
@@ -271,6 +281,7 @@
 
     // Can not be constructed directly by clients.
     StreamInHalAidl(
+            const audio_config& config,
             const ::aidl::android::hardware::audio::core::StreamDescriptor& descriptor,
             const std::shared_ptr<::aidl::android::hardware::audio::core::IStreamIn>& stream);