diff --git a/media/libaudiohal/Android.bp b/media/libaudiohal/Android.bp
index 5f63e8d..320c639 100644
--- a/media/libaudiohal/Android.bp
+++ b/media/libaudiohal/Android.bp
@@ -13,7 +13,7 @@
     srcs: [
         "DevicesFactoryHalInterface.cpp",
         "EffectsFactoryHalInterface.cpp",
-        "FactoryHalHidl.cpp",
+        "FactoryHal.cpp",
     ],
 
     cflags: [
@@ -28,10 +28,12 @@
         "libaudiohal@6.0",
         "libaudiohal@7.0",
         "libaudiohal@7.1",
+        "libaudiohal@aidl",
     ],
 
     shared_libs: [
         "audioclient-types-aidl-cpp",
+        "libbinder_ndk",
         "libdl",
         "libhidlbase",
         "liblog",
@@ -65,7 +67,7 @@
 
     header_libs: [
         "libaudiohal_headers"
-    ]
+    ],
 }
 
 cc_library_headers {
diff --git a/media/libaudiohal/DevicesFactoryHalInterface.cpp b/media/libaudiohal/DevicesFactoryHalInterface.cpp
index 5ad26fc..adce681 100644
--- a/media/libaudiohal/DevicesFactoryHalInterface.cpp
+++ b/media/libaudiohal/DevicesFactoryHalInterface.cpp
@@ -14,19 +14,14 @@
  * limitations under the License.
  */
 
-#include <string>
-
 #include <media/audiohal/DevicesFactoryHalInterface.h>
-#include <media/audiohal/FactoryHalHidl.h>
+#include <media/audiohal/FactoryHal.h>
 
 namespace android {
 
 // static
 sp<DevicesFactoryHalInterface> DevicesFactoryHalInterface::create() {
-    using namespace std::string_literals;
-    return createPreferredImpl<DevicesFactoryHalInterface>(
-            std::make_pair("android.hardware.audio"s, "IDevicesFactory"s),
-            std::make_pair("android.hardware.audio.effect"s, "IEffectsFactory"s));
+    return createPreferredImpl<DevicesFactoryHalInterface>(true /* isCore */);
 }
 
 } // namespace android
diff --git a/media/libaudiohal/EffectsFactoryHalInterface.cpp b/media/libaudiohal/EffectsFactoryHalInterface.cpp
index 8a28f64..3a05f21 100644
--- a/media/libaudiohal/EffectsFactoryHalInterface.cpp
+++ b/media/libaudiohal/EffectsFactoryHalInterface.cpp
@@ -14,19 +14,14 @@
  * limitations under the License.
  */
 
-#include <string>
-
 #include <media/audiohal/EffectsFactoryHalInterface.h>
-#include <media/audiohal/FactoryHalHidl.h>
+#include <media/audiohal/FactoryHal.h>
 
 namespace android {
 
 // static
 sp<EffectsFactoryHalInterface> EffectsFactoryHalInterface::create() {
-    using namespace std::string_literals;
-    return createPreferredImpl<EffectsFactoryHalInterface>(
-            std::make_pair("android.hardware.audio.effect"s, "IEffectsFactory"s),
-            std::make_pair("android.hardware.audio"s, "IDevicesFactory"s));
+    return createPreferredImpl<EffectsFactoryHalInterface>(false /* isCore */);
 }
 
 // static
diff --git a/media/libaudiohal/FactoryHal.cpp b/media/libaudiohal/FactoryHal.cpp
new file mode 100644
index 0000000..16d591c
--- /dev/null
+++ b/media/libaudiohal/FactoryHal.cpp
@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#include <map>
+#include <memory>
+#define LOG_TAG "FactoryHal"
+
+#include <algorithm>
+#include <array>
+#include <cstddef>
+#include <dlfcn.h>
+#include <utility>
+
+#include <android/binder_manager.h>
+#include <android/hidl/manager/1.0/IServiceManager.h>
+#include <hidl/ServiceManagement.h>
+#include <hidl/Status.h>
+#include <utils/Log.h>
+
+#include "include/media/audiohal/AudioHalVersionInfo.h"
+#include "include/media/audiohal/FactoryHal.h"
+
+namespace android::detail {
+
+namespace {
+
+using ::android::detail::AudioHalVersionInfo;
+
+// The pair of the interface's package name and the interface name,
+// e.g. <"android.hardware.audio", "IDevicesFactory"> for HIDL, <"android.hardware.audio.core",
+// "IModule"> for AIDL.
+// Splitting is used for easier construction of versioned names (FQNs).
+using InterfaceName = std::pair<std::string, std::string>;
+
+/**
+ * Supported HAL versions, from most recent to least recent.
+ * This list need to keep sync with AudioHalVersionInfo.VERSIONS in
+ * media/java/android/media/AudioHalVersionInfo.java.
+ */
+static const std::array<AudioHalVersionInfo, 5> sAudioHALVersions = {
+    // TODO: remove this comment to get AIDL
+    // AudioHalVersionInfo(AudioHalVersionInfo::Type::AIDL, 1, 0),
+    AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, 7, 1),
+    AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, 7, 0),
+    AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, 6, 0),
+    AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, 5, 0),
+    AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, 4, 0),
+};
+
+static const std::map<AudioHalVersionInfo::Type, InterfaceName> sDevicesHALInterfaces = {
+        {AudioHalVersionInfo::Type::AIDL, std::make_pair("android.hardware.audio.core", "IModule")},
+        {AudioHalVersionInfo::Type::HIDL,
+         std::make_pair("android.hardware.audio", "IDevicesFactory")},
+};
+
+static const std::map<AudioHalVersionInfo::Type, InterfaceName> sEffectsHALInterfaces = {
+        {AudioHalVersionInfo::Type::AIDL,
+         std::make_pair("android.hardware.audio.effect", "IFactory")},
+        {AudioHalVersionInfo::Type::HIDL,
+         std::make_pair("android.hardware.audio.effect", "IEffectsFactory")},
+};
+
+bool createHalService(const AudioHalVersionInfo& version, bool isDevice, void** rawInterface) {
+    const std::string libName = "libaudiohal@" + version.toVersionString() + ".so";
+    const std::string factoryFunctionName =
+            isDevice ? "createIDevicesFactory" : "createIEffectsFactory";
+    constexpr int dlMode = RTLD_LAZY;
+    void* handle = nullptr;
+    dlerror(); // clear
+    handle = dlopen(libName.c_str(), dlMode);
+    if (handle == nullptr) {
+        const char* error = dlerror();
+        ALOGE("Failed to dlopen %s: %s", libName.c_str(),
+                error != nullptr ? error : "unknown error");
+        return false;
+    }
+    void* (*factoryFunction)();
+    *(void **)(&factoryFunction) = dlsym(handle, factoryFunctionName.c_str());
+    if (!factoryFunction) {
+        const char* error = dlerror();
+        ALOGE("Factory function %s not found in library %s: %s",
+                factoryFunctionName.c_str(), libName.c_str(),
+                error != nullptr ? error : "unknown error");
+        dlclose(handle);
+        return false;
+    }
+    *rawInterface = (*factoryFunction)();
+    ALOGW_IF(!*rawInterface, "Factory function %s from %s returned nullptr",
+            factoryFunctionName.c_str(), libName.c_str());
+    return true;
+}
+
+bool hasAidlHalService(const InterfaceName& interface, const AudioHalVersionInfo& version) {
+    const std::string name = interface.first + "." + interface.second + "/default";
+    AIBinder* binder = AServiceManager_checkService(name.c_str());
+    if (binder == nullptr) {
+        ALOGW("%s Service %s doesn't exist", __func__, name.c_str());
+        return false;
+    }
+    ALOGI("%s AIDL Service %s exist: %s", __func__, name.c_str(), version.toString().c_str());
+    return true;
+}
+
+bool hasHidlHalService(const InterfaceName& interface, const AudioHalVersionInfo& version) {
+    using ::android::hidl::manager::V1_0::IServiceManager;
+    sp<IServiceManager> sm = ::android::hardware::defaultServiceManager();
+    if (!sm) {
+        ALOGW("Failed to obtain HIDL ServiceManager");
+        return false;
+    }
+    // Since audio HAL doesn't support multiple clients, avoid instantiating
+    // the interface right away. Instead, query the transport type for it.
+    using ::android::hardware::Return;
+    using Transport = IServiceManager::Transport;
+    const std::string fqName =
+            interface.first + "@" + version.toVersionString() + "::" + interface.second;
+    const std::string instance = "default";
+    Return<Transport> transport = sm->getTransport(fqName, instance);
+    if (!transport.isOk()) {
+        ALOGW("Failed to obtain transport type for %s/%s: %s",
+              fqName.c_str(), instance.c_str(), transport.description().c_str());
+        return false;
+    }
+    return transport != Transport::EMPTY;
+}
+
+bool hasHalService(const InterfaceName& interface, const AudioHalVersionInfo& version) {
+    auto halType = version.getType();
+    if (halType == AudioHalVersionInfo::Type::AIDL) {
+        return hasAidlHalService(interface, version);
+    } else if (version.getType() == AudioHalVersionInfo::Type::HIDL) {
+        return hasHidlHalService(interface, version);
+    } else {
+        ALOGE("HalType not supported %s", version.toString().c_str());
+        return false;
+    }
+}
+
+}  // namespace
+
+void *createPreferredImpl(bool isDevice) {
+    auto findMostRecentVersion = [](const auto& iMap) {
+        return std::find_if(sAudioHALVersions.begin(), sAudioHALVersions.end(),
+                            [iMap](const auto& v) {
+                                auto iface = iMap.find(v.getType());
+                                return hasHalService(iface->second, v);
+                            });
+    };
+
+    auto interfaceMap = isDevice ? sDevicesHALInterfaces : sEffectsHALInterfaces;
+    auto siblingInterfaceMap = isDevice ? sEffectsHALInterfaces : sDevicesHALInterfaces;
+    auto ifaceVersionIt = findMostRecentVersion(interfaceMap);
+    auto siblingVersionIt = findMostRecentVersion(siblingInterfaceMap);
+    if (ifaceVersionIt != sAudioHALVersions.end() &&
+        siblingVersionIt != sAudioHALVersions.end() &&
+        // same major version
+        ifaceVersionIt->getMajorVersion() == siblingVersionIt->getMajorVersion()) {
+        void* rawInterface;
+        if (createHalService(std::max(*ifaceVersionIt, *siblingVersionIt), isDevice,
+                             &rawInterface)) {
+            return rawInterface;
+        } else {
+            ALOGE("Failed to create HAL services with major %s, sibling %s!",
+                  ifaceVersionIt->toString().c_str(), siblingVersionIt->toString().c_str());
+        }
+    } else {
+        ALOGE("Found no HAL version, main(%s) %s %s!", isDevice ? "Device" : "Effect",
+              (ifaceVersionIt == sAudioHALVersions.end()) ? "null"
+                                                          : ifaceVersionIt->toString().c_str(),
+              (siblingVersionIt == sAudioHALVersions.end()) ? "null"
+                                                            : siblingVersionIt->toString().c_str());
+    }
+    return nullptr;
+}
+
+}  // namespace android::detail
diff --git a/media/libaudiohal/FactoryHalHidl.cpp b/media/libaudiohal/FactoryHalHidl.cpp
deleted file mode 100644
index 590fec5..0000000
--- a/media/libaudiohal/FactoryHalHidl.cpp
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright (C) 2020 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 "FactoryHalHidl"
-
-#include <algorithm>
-#include <array>
-#include <utility>
-
-#include <media/audiohal/FactoryHalHidl.h>
-
-#include <dlfcn.h>
-
-#include <android/hidl/manager/1.0/IServiceManager.h>
-#include <hidl/ServiceManagement.h>
-#include <hidl/Status.h>
-#include <utils/Log.h>
-
-namespace android::detail {
-
-namespace {
-/** Supported HAL versions, from most recent to least recent.
- */
-#define CONC_VERSION(maj, min) #maj "." #min
-#define DECLARE_VERSION(maj, min) std::make_pair(std::make_pair(maj, min), CONC_VERSION(maj, min))
-static constexpr std::array<std::pair<std::pair<int, int>, const char*>, 5> sAudioHALVersions = {
-    DECLARE_VERSION(7, 1),
-    DECLARE_VERSION(7, 0),
-    DECLARE_VERSION(6, 0),
-    DECLARE_VERSION(5, 0),
-    DECLARE_VERSION(4, 0)
-};
-
-bool createHalService(const std::string& version, const std::string& interface,
-        void** rawInterface) {
-    const std::string libName = "libaudiohal@" + version + ".so";
-    const std::string factoryFunctionName = "create" + interface;
-    constexpr int dlMode = RTLD_LAZY;
-    void* handle = nullptr;
-    dlerror(); // clear
-    handle = dlopen(libName.c_str(), dlMode);
-    if (handle == nullptr) {
-        const char* error = dlerror();
-        ALOGE("Failed to dlopen %s: %s", libName.c_str(),
-                error != nullptr ? error : "unknown error");
-        return false;
-    }
-    void* (*factoryFunction)();
-    *(void **)(&factoryFunction) = dlsym(handle, factoryFunctionName.c_str());
-    if (!factoryFunction) {
-        const char* error = dlerror();
-        ALOGE("Factory function %s not found in library %s: %s",
-                factoryFunctionName.c_str(), libName.c_str(),
-                error != nullptr ? error : "unknown error");
-        dlclose(handle);
-        return false;
-    }
-    *rawInterface = (*factoryFunction)();
-    ALOGW_IF(!*rawInterface, "Factory function %s from %s returned nullptr",
-            factoryFunctionName.c_str(), libName.c_str());
-    return true;
-}
-
-bool hasHalService(const std::string& package, const std::string& version,
-        const std::string& interface) {
-    using ::android::hidl::manager::V1_0::IServiceManager;
-    sp<IServiceManager> sm = ::android::hardware::defaultServiceManager();
-    if (!sm) {
-        ALOGE("Failed to obtain HIDL ServiceManager");
-        return false;
-    }
-    // Since audio HAL doesn't support multiple clients, avoid instantiating
-    // the interface right away. Instead, query the transport type for it.
-    using ::android::hardware::Return;
-    using Transport = IServiceManager::Transport;
-    const std::string fqName = package + "@" + version + "::" + interface;
-    const std::string instance = "default";
-    Return<Transport> transport = sm->getTransport(fqName, instance);
-    if (!transport.isOk()) {
-        ALOGE("Failed to obtain transport type for %s/%s: %s",
-                fqName.c_str(), instance.c_str(), transport.description().c_str());
-        return false;
-    }
-    return transport != Transport::EMPTY;
-}
-
-}  // namespace
-
-void* createPreferredImpl(const InterfaceName& iface, const InterfaceName& siblingIface) {
-    auto findMostRecentVersion = [](const InterfaceName& iface) {
-        return std::find_if(detail::sAudioHALVersions.begin(), detail::sAudioHALVersions.end(),
-                [&](const auto& v) { return hasHalService(iface.first, v.second, iface.second); });
-    };
-    auto ifaceVersionIt = findMostRecentVersion(iface);
-    auto siblingVersionIt = findMostRecentVersion(siblingIface);
-    if (ifaceVersionIt != detail::sAudioHALVersions.end() &&
-            siblingVersionIt != detail::sAudioHALVersions.end() &&
-            // same major version
-            ifaceVersionIt->first.first == siblingVersionIt->first.first) {
-        std::string libraryVersion =
-                ifaceVersionIt->first >= siblingVersionIt->first ?
-                ifaceVersionIt->second : siblingVersionIt->second;
-        void* rawInterface;
-        if (createHalService(libraryVersion, iface.second, &rawInterface)) {
-            return rawInterface;
-        }
-    }
-    return nullptr;
-}
-
-}  // namespace android::detail
diff --git a/media/libaudiohal/impl/Android.bp b/media/libaudiohal/impl/Android.bp
index d30883a..bb5601f 100644
--- a/media/libaudiohal/impl/Android.bp
+++ b/media/libaudiohal/impl/Android.bp
@@ -12,13 +12,14 @@
     srcs: [
         "CoreConversionHelperHidl.cpp",
         "DeviceHalHidl.cpp",
+        "DevicesFactoryHalEntry.cpp",
         "DevicesFactoryHalHidl.cpp",
         "StreamHalHidl.cpp",
     ],
 }
 
 filegroup {
-    name: "audio_effect_hal_client_sources",
+    name: "audio_effect_hidl_hal_client_sources",
     srcs: [
         "EffectBufferHalHidl.cpp",
         "EffectConversionHelperHidl.cpp",
@@ -28,6 +29,21 @@
 }
 
 cc_defaults {
+    name: "libaudiohal_hidl_default",
+    shared_libs: [
+        "android.hardware.audio.common-util",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "libaudiohal_deathhandler",
+        "libhidlbase",
+        "libhidlmemory",
+    ],
+    header_libs: [
+        "android.hardware.audio.common.util@all-versions",
+    ]
+}
+
+cc_defaults {
     name: "libaudiohal_default",
 
     cflags: [
@@ -37,28 +53,21 @@
         "-fvisibility=hidden",
     ],
     shared_libs: [
-        "android.hardware.audio.common-util",
-        "android.hidl.allocator@1.0",
-        "android.hidl.memory@1.0",
+        "audioclient-types-aidl-cpp",
         "av-types-aidl-cpp",
         "libaudiofoundation",
-        "libaudiohal_deathhandler",
         "libaudioutils",
         "libbase",
         "libbinder",
         "libcutils",
         "libfmq",
         "libhardware",
-        "libhidlbase",
-        "libhidlmemory",
         "liblog",
         "libmedia_helper",
         "libmediautils",
         "libutils",
-        "audioclient-types-aidl-cpp",
     ],
     header_libs: [
-        "android.hardware.audio.common.util@all-versions",
         "libaudioclient_headers",
         "libaudiohal_headers"
     ],
@@ -70,11 +79,14 @@
 
 cc_library_shared {
     name: "libaudiohal@4.0",
-    defaults: ["libaudiohal_default"],
+    defaults: [
+        "libaudiohal_default",
+        "libaudiohal_hidl_default"
+    ],
     srcs: [
         ":audio_core_hal_client_sources",
-        ":audio_effect_hal_client_sources",
-        "EffectsFactoryHalHidlEntry.cpp",
+        ":audio_effect_hidl_hal_client_sources",
+        "EffectsFactoryHalEntry.cpp",
     ],
     shared_libs: [
         "android.hardware.audio.common@4.0",
@@ -93,11 +105,14 @@
 
 cc_library_shared {
     name: "libaudiohal@5.0",
-    defaults: ["libaudiohal_default"],
+    defaults: [
+        "libaudiohal_default",
+        "libaudiohal_hidl_default"
+    ],
     srcs: [
         ":audio_core_hal_client_sources",
-        ":audio_effect_hal_client_sources",
-        "EffectsFactoryHalHidlEntry.cpp",
+        ":audio_effect_hidl_hal_client_sources",
+        "EffectsFactoryHalEntry.cpp",
     ],
     shared_libs: [
         "android.hardware.audio.common@5.0",
@@ -116,11 +131,14 @@
 
 cc_library_shared {
     name: "libaudiohal@6.0",
-    defaults: ["libaudiohal_default"],
+    defaults: [
+        "libaudiohal_default",
+        "libaudiohal_hidl_default"
+    ],
     srcs: [
         ":audio_core_hal_client_sources",
-        ":audio_effect_hal_client_sources",
-        "EffectsFactoryHalHidlEntry.cpp",
+        ":audio_effect_hidl_hal_client_sources",
+        "EffectsFactoryHalEntry.cpp",
     ],
     shared_libs: [
         "android.hardware.audio.common@6.0",
@@ -139,9 +157,12 @@
 
 cc_library_static {
     name: "libaudiohal.effect@7.0",
-    defaults: ["libaudiohal_default"],
+    defaults: [
+        "libaudiohal_default",
+        "libaudiohal_hidl_default"
+    ],
     srcs: [
-        ":audio_effect_hal_client_sources",
+        ":audio_effect_hidl_hal_client_sources",
     ],
     static_libs: [
         "android.hardware.audio.common@7.0",
@@ -158,10 +179,13 @@
 
 cc_library_shared {
     name: "libaudiohal@7.0",
-    defaults: ["libaudiohal_default"],
+    defaults: [
+        "libaudiohal_default",
+        "libaudiohal_hidl_default"
+    ],
     srcs: [
         ":audio_core_hal_client_sources",
-        "EffectsFactoryHalHidlEntry.cpp",
+        "EffectsFactoryHalEntry.cpp",
     ],
     static_libs: [
         "android.hardware.audio.common@7.0",
@@ -182,10 +206,13 @@
 
 cc_library_shared {
     name: "libaudiohal@7.1",
-    defaults: ["libaudiohal_default"],
+    defaults: [
+        "libaudiohal_default",
+        "libaudiohal_hidl_default"
+    ],
     srcs: [
         ":audio_core_hal_client_sources",
-        "EffectsFactoryHalHidlEntry.cpp",
+        "EffectsFactoryHalEntry.cpp",
     ],
     static_libs: [
         "android.hardware.audio.common@7.0",
@@ -207,3 +234,22 @@
         "-include common/all-versions/VersionMacro.h",
     ]
 }
+
+cc_library_shared {
+    name: "libaudiohal@aidl",
+    defaults: [
+        "libaudiohal_default",
+        "latest_android_hardware_audio_common_ndk_shared",
+        "latest_android_hardware_audio_core_ndk_shared",
+        "latest_android_hardware_audio_effect_ndk_shared",
+    ],
+    srcs: [
+        "DevicesFactoryHalEntry.cpp",
+        "DevicesFactoryHalAidl.cpp",
+        "EffectsFactoryHalAidl.cpp",
+        "EffectsFactoryHalEntry.cpp",
+    ],
+    shared_libs: [
+        "libbinder_ndk",
+    ]
+}
\ No newline at end of file
diff --git a/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp b/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp
new file mode 100644
index 0000000..29fb558
--- /dev/null
+++ b/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2022 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 "DevicesFactoryHalAidl"
+//#define LOG_NDEBUG 0
+
+#include <android/binder_manager.h>
+#include <utils/Log.h>
+
+#include "DevicesFactoryHalAidl.h"
+
+using ::android::detail::AudioHalVersionInfo;
+
+namespace android {
+
+DevicesFactoryHalAidl::DevicesFactoryHalAidl(std::shared_ptr<IConfig> iconfig) {
+    ALOG_ASSERT(iconfig != nullptr, "Provided default IConfig service is NULL");
+    mIConfig = std::move(iconfig);
+}
+
+void DevicesFactoryHalAidl::onFirstRef() {
+    ALOGE("%s not implemented yet", __func__);
+}
+
+// Opens a device with the specified name. To close the device, it is
+// necessary to release references to the returned object.
+status_t DevicesFactoryHalAidl::openDevice(const char *name, sp<DeviceHalInterface> *device) {
+    if (name == nullptr || device == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+status_t DevicesFactoryHalAidl::getHalPids(std::vector<pid_t> *pids) {
+    if (pids == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+status_t DevicesFactoryHalAidl::setCallbackOnce(sp<DevicesFactoryHalCallback> callback) {
+    if (callback == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+AudioHalVersionInfo DevicesFactoryHalAidl::getHalVersion() const {
+    int32_t versionNumber = 0;
+    if (mIConfig) {
+        if (!mIConfig->getInterfaceVersion(&versionNumber).isOk()) {
+            ALOGE("%s getInterfaceVersion failed", __func__);
+        } else {
+            ALOGI("%s getInterfaceVersion %d", __func__, versionNumber);
+        }
+    }
+    // AIDL does not have minor version, fill 0 for all versions
+    return AudioHalVersionInfo(AudioHalVersionInfo::Type::AIDL, versionNumber);
+}
+
+// Main entry-point to the shared library.
+extern "C" __attribute__((visibility("default"))) void* createIDevicesFactoryImpl() {
+    auto service = IConfig::fromBinder(
+            ndk::SpAIBinder(AServiceManager_waitForService(IConfig::descriptor)));
+    return service ? new DevicesFactoryHalAidl(service) : nullptr;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/impl/DevicesFactoryHalAidl.h b/media/libaudiohal/impl/DevicesFactoryHalAidl.h
new file mode 100644
index 0000000..f4812af
--- /dev/null
+++ b/media/libaudiohal/impl/DevicesFactoryHalAidl.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/audio/core/IConfig.h>
+#include <media/audiohal/DevicesFactoryHalInterface.h>
+#include <utils/RefBase.h>
+
+using namespace ::aidl::android::hardware::audio::core;
+
+namespace android {
+
+class DevicesFactoryHalAidl : public DevicesFactoryHalInterface
+{
+  public:
+    explicit DevicesFactoryHalAidl(std::shared_ptr<IConfig> iConfig);
+    void onFirstRef() override;
+
+    // Opens a device with the specified name. To close the device, it is
+    // necessary to release references to the returned object.
+    status_t openDevice(const char *name, sp<DeviceHalInterface> *device) override;
+
+    status_t getHalPids(std::vector<pid_t> *pids) override;
+
+    status_t setCallbackOnce(sp<DevicesFactoryHalCallback> callback) override;
+
+    android::detail::AudioHalVersionInfo getHalVersion() const override;
+
+  private:
+    std::shared_ptr<IConfig> mIConfig;
+    virtual ~DevicesFactoryHalAidl() = default;
+};
+
+} // namespace android
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidlEntry.cpp b/media/libaudiohal/impl/DevicesFactoryHalEntry.cpp
similarity index 74%
copy from media/libaudiohal/impl/EffectsFactoryHalHidlEntry.cpp
copy to media/libaudiohal/impl/DevicesFactoryHalEntry.cpp
index 2c6f2c6..5bf6d89 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidlEntry.cpp
+++ b/media/libaudiohal/impl/DevicesFactoryHalEntry.cpp
@@ -14,8 +14,10 @@
  * limitations under the License.
  */
 
-extern "C" void* createIEffectsFactoryImpl();
+#include "android/media/AudioHalVersion.h"
 
-extern "C" __attribute__((visibility("default"))) void* createIEffectsFactory() {
-    return createIEffectsFactoryImpl();
+extern "C" void* createIDevicesFactoryImpl();
+
+extern "C" __attribute__((visibility("default"))) void* createIDevicesFactory() {
+    return createIDevicesFactoryImpl();
 }
diff --git a/media/libaudiohal/impl/DevicesFactoryHalHidl.cpp b/media/libaudiohal/impl/DevicesFactoryHalHidl.cpp
index 4069a6b..9f06f83 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalHidl.cpp
+++ b/media/libaudiohal/impl/DevicesFactoryHalHidl.cpp
@@ -29,6 +29,7 @@
 #include "DeviceHalHidl.h"
 #include "DevicesFactoryHalHidl.h"
 
+using ::android::detail::AudioHalVersionInfo;
 using ::android::hardware::audio::CPP_VERSION::IDevice;
 using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::Result;
 using ::android::hardware::Return;
@@ -226,8 +227,13 @@
     return mDeviceFactories;
 }
 
+
+AudioHalVersionInfo DevicesFactoryHalHidl::getHalVersion() const {
+    return AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, MAJOR_VERSION, MINOR_VERSION);
+}
+
 // Main entry-point to the shared library.
-extern "C" __attribute__((visibility("default"))) void* createIDevicesFactory() {
+extern "C" __attribute__((visibility("default"))) void* createIDevicesFactoryImpl() {
     auto service = hardware::audio::CPP_VERSION::IDevicesFactory::getService();
     return service ? new DevicesFactoryHalHidl(service) : nullptr;
 }
diff --git a/media/libaudiohal/impl/DevicesFactoryHalHidl.h b/media/libaudiohal/impl/DevicesFactoryHalHidl.h
index ffd229d..5294728 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalHidl.h
+++ b/media/libaudiohal/impl/DevicesFactoryHalHidl.h
@@ -45,7 +45,7 @@
 
     status_t setCallbackOnce(sp<DevicesFactoryHalCallback> callback) override;
 
-    float getHalVersion() const override { return MAJOR_VERSION + (float)MINOR_VERSION / 10; }
+    android::detail::AudioHalVersionInfo getHalVersion() const override;
 
   private:
     friend class ServiceNotificationListener;
diff --git a/media/libaudiohal/impl/EffectsFactoryHalAidl.cpp b/media/libaudiohal/impl/EffectsFactoryHalAidl.cpp
new file mode 100644
index 0000000..7aec859
--- /dev/null
+++ b/media/libaudiohal/impl/EffectsFactoryHalAidl.cpp
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#include <random>
+#define LOG_TAG "EffectsFactoryHalAidl"
+//#define LOG_NDEBUG 0
+
+#include <aidl/android/hardware/audio/effect/IFactory.h>
+#include <android/binder_manager.h>
+#include <utils/Log.h>
+
+#include "EffectsFactoryHalAidl.h"
+
+using aidl::android::hardware::audio::effect::IFactory;
+using android::detail::AudioHalVersionInfo;
+
+namespace android {
+namespace effect {
+
+EffectsFactoryHalAidl::EffectsFactoryHalAidl(std::shared_ptr<IFactory> effectsFactory) {
+    ALOG_ASSERT(effectsFactory != nullptr, "Provided IEffectsFactory service is NULL");
+    mEffectsFactory = effectsFactory;
+}
+
+status_t EffectsFactoryHalAidl::queryNumberEffects(uint32_t *pNumEffects) {
+    if (pNumEffects == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+status_t EffectsFactoryHalAidl::getDescriptor(uint32_t index, effect_descriptor_t* pDescriptor) {
+    if (index < 0 || pDescriptor == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+status_t EffectsFactoryHalAidl::getDescriptor(const effect_uuid_t* pEffectUuid,
+                                              effect_descriptor_t* pDescriptor) {
+    if (pEffectUuid == nullptr || pDescriptor == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+status_t EffectsFactoryHalAidl::getDescriptors(const effect_uuid_t* pEffectType,
+                                               std::vector<effect_descriptor_t>* descriptors) {
+    if (pEffectType == nullptr || descriptors == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+status_t EffectsFactoryHalAidl::createEffect(const effect_uuid_t* pEffectUuid, int32_t sessionId,
+                                             int32_t ioId, int32_t deviceId __unused,
+                                             sp<EffectHalInterface>* effect) {
+    if (pEffectUuid == nullptr || effect == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet %d %d", __func__, sessionId, ioId);
+    return INVALID_OPERATION;
+}
+
+status_t EffectsFactoryHalAidl::dumpEffects(int fd) {
+    ALOGE("%s not implemented yet, fd %d", __func__, fd);
+    return INVALID_OPERATION;
+}
+
+status_t EffectsFactoryHalAidl::allocateBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) {
+    if (size <= 0 || buffer == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+status_t EffectsFactoryHalAidl::mirrorBuffer(void* external, size_t size,
+                                             sp<EffectBufferHalInterface>* buffer) {
+    if (external == nullptr || size <= 0 || buffer == nullptr) {
+        return BAD_VALUE;
+    }
+    ALOGE("%s not implemented yet", __func__);
+    return INVALID_OPERATION;
+}
+
+AudioHalVersionInfo EffectsFactoryHalAidl::getHalVersion() const {
+    int32_t versionNumber = 0;
+    if (mEffectsFactory) {
+        if (!mEffectsFactory->getInterfaceVersion(&versionNumber).isOk()) {
+            ALOGE("%s getInterfaceVersion failed", __func__);
+        } else {
+            ALOGI("%s getInterfaceVersion %d", __func__, versionNumber);
+        }
+    }
+    // AIDL does not have minor version, fill 0 for all versions
+    return AudioHalVersionInfo(AudioHalVersionInfo::Type::AIDL, versionNumber);
+}
+
+} // namespace effect
+
+// When a shared library is built from a static library, even explicit
+// exports from a static library are optimized out unless actually used by
+// the shared library. See EffectsFactoryHalEntry.cpp.
+extern "C" void* createIEffectsFactoryImpl() {
+    auto factory = IFactory::fromBinder(
+            ndk::SpAIBinder(AServiceManager_waitForService(IFactory::descriptor)));
+    return factory ? new effect::EffectsFactoryHalAidl(factory) : nullptr;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/impl/EffectsFactoryHalAidl.h b/media/libaudiohal/impl/EffectsFactoryHalAidl.h
new file mode 100644
index 0000000..d6b5684
--- /dev/null
+++ b/media/libaudiohal/impl/EffectsFactoryHalAidl.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+
+namespace android {
+namespace effect {
+
+using namespace aidl::android::hardware::audio::effect;
+
+class EffectsFactoryHalAidl final : public EffectsFactoryHalInterface {
+  public:
+    explicit EffectsFactoryHalAidl(std::shared_ptr<IFactory> effectsFactory);
+
+    // Returns the number of different effects in all loaded libraries.
+    status_t queryNumberEffects(uint32_t *pNumEffects) override;
+
+    // Returns a descriptor of the next available effect.
+    status_t getDescriptor(uint32_t index, effect_descriptor_t* pDescriptor) override;
+
+    status_t getDescriptor(const effect_uuid_t* pEffectUuid,
+                           effect_descriptor_t* pDescriptor) override;
+
+    status_t getDescriptors(const effect_uuid_t* pEffectType,
+                            std::vector<effect_descriptor_t>* descriptors) override;
+
+    // Creates an effect engine of the specified type.
+    // To release the effect engine, it is necessary to release references
+    // to the returned effect object.
+    status_t createEffect(const effect_uuid_t* pEffectUuid, int32_t sessionId, int32_t ioId,
+                          int32_t deviceId, sp<EffectHalInterface>* effect) override;
+
+    status_t dumpEffects(int fd) override;
+
+    status_t allocateBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) override;
+    status_t mirrorBuffer(void* external, size_t size,
+                          sp<EffectBufferHalInterface>* buffer) override;
+
+    android::detail::AudioHalVersionInfo getHalVersion() const override;
+
+  private:
+    std::shared_ptr<IFactory> mEffectsFactory;
+    virtual ~EffectsFactoryHalAidl() = default;
+};
+
+} // namespace effect
+} // namespace android
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidlEntry.cpp b/media/libaudiohal/impl/EffectsFactoryHalEntry.cpp
similarity index 94%
rename from media/libaudiohal/impl/EffectsFactoryHalHidlEntry.cpp
rename to media/libaudiohal/impl/EffectsFactoryHalEntry.cpp
index 2c6f2c6..f6ad99a 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidlEntry.cpp
+++ b/media/libaudiohal/impl/EffectsFactoryHalEntry.cpp
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#include "android/media/AudioHalVersion.h"
+
 extern "C" void* createIEffectsFactoryImpl();
 
 extern "C" __attribute__((visibility("default"))) void* createIEffectsFactory() {
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp b/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
index 3470380..172ebdf 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
+++ b/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
@@ -31,6 +31,9 @@
 #include "EffectHalHidl.h"
 #include "EffectsFactoryHalHidl.h"
 
+#include "android/media/AudioHalVersion.h"
+
+using ::android::detail::AudioHalVersionInfo;
 using ::android::hardware::audio::common::CPP_VERSION::implementation::UuidUtils;
 using ::android::hardware::audio::effect::CPP_VERSION::implementation::EffectUtils;
 using ::android::hardware::Return;
@@ -77,7 +80,7 @@
 EffectsFactoryHalHidl::EffectsFactoryHalHidl(sp<IEffectsFactory> effectsFactory)
         : EffectConversionHelperHidl("EffectsFactory"), mCache(new EffectDescriptorCache) {
     ALOG_ASSERT(effectsFactory != nullptr, "Provided IEffectsFactory service is NULL");
-    mEffectsFactory = effectsFactory;
+    mEffectsFactory = std::move(effectsFactory);
 }
 
 status_t EffectsFactoryHalHidl::queryNumberEffects(uint32_t *pNumEffects) {
@@ -221,11 +224,15 @@
     return EffectBufferHalHidl::mirror(external, size, buffer);
 }
 
+AudioHalVersionInfo EffectsFactoryHalHidl::getHalVersion() const {
+    return AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, MAJOR_VERSION, MINOR_VERSION);
+}
+
 } // namespace effect
 
 // When a shared library is built from a static library, even explicit
 // exports from a static library are optimized out unless actually used by
-// the shared library. See EffectsFactoryHalHidlEntry.cpp.
+// the shared library. See EffectsFactoryHalEntry.cpp.
 extern "C" void* createIEffectsFactoryImpl() {
     auto service = hardware::audio::effect::CPP_VERSION::IEffectsFactory::getService();
     return service ? new effect::EffectsFactoryHalHidl(service) : nullptr;
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidl.h b/media/libaudiohal/impl/EffectsFactoryHalHidl.h
index 7ccddc6..9875154 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidl.h
+++ b/media/libaudiohal/impl/EffectsFactoryHalHidl.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
-#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
+#pragma once
 
 #include <memory>
 
@@ -32,39 +31,37 @@
 
 class EffectDescriptorCache;
 
-class EffectsFactoryHalHidl : public EffectsFactoryHalInterface, public EffectConversionHelperHidl
-{
+class EffectsFactoryHalHidl final : public EffectsFactoryHalInterface,
+                                    public EffectConversionHelperHidl {
   public:
     EffectsFactoryHalHidl(sp<IEffectsFactory> effectsFactory);
 
     // Returns the number of different effects in all loaded libraries.
-    virtual status_t queryNumberEffects(uint32_t *pNumEffects);
+    status_t queryNumberEffects(uint32_t *pNumEffects) override;
 
     // Returns a descriptor of the next available effect.
-    virtual status_t getDescriptor(uint32_t index,
-            effect_descriptor_t *pDescriptor);
+    status_t getDescriptor(uint32_t index, effect_descriptor_t* pDescriptor) override;
 
-    virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
-            effect_descriptor_t *pDescriptor);
+    status_t getDescriptor(const effect_uuid_t* pEffectUuid,
+                           effect_descriptor_t* pDescriptor) override;
 
-    virtual status_t getDescriptors(const effect_uuid_t *pEffectType,
-                                    std::vector<effect_descriptor_t> *descriptors);
+    status_t getDescriptors(const effect_uuid_t* pEffectType,
+                            std::vector<effect_descriptor_t>* descriptors) override;
 
     // Creates an effect engine of the specified type.
     // To release the effect engine, it is necessary to release references
     // to the returned effect object.
-    virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
-            int32_t sessionId, int32_t ioId, int32_t deviceId,
-            sp<EffectHalInterface> *effect);
+    status_t createEffect(const effect_uuid_t* pEffectUuid, int32_t sessionId, int32_t ioId,
+                          int32_t deviceId, sp<EffectHalInterface>* effect) override;
 
-    virtual status_t dumpEffects(int fd);
-
-    virtual float getHalVersion() { return MAJOR_VERSION + (float)MINOR_VERSION / 10; }
+    status_t dumpEffects(int fd) override;
 
     status_t allocateBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) override;
     status_t mirrorBuffer(void* external, size_t size,
                           sp<EffectBufferHalInterface>* buffer) override;
 
+    android::detail::AudioHalVersionInfo getHalVersion() const override;
+
   private:
     sp<IEffectsFactory> mEffectsFactory;
     std::unique_ptr<EffectDescriptorCache> mCache;
@@ -72,5 +69,3 @@
 
 } // namespace effect
 } // namespace android
-
-#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
diff --git a/media/libaudiohal/include/media/audiohal/AudioHalVersionInfo.h b/media/libaudiohal/include/media/audiohal/AudioHalVersionInfo.h
new file mode 100644
index 0000000..6e09463
--- /dev/null
+++ b/media/libaudiohal/include/media/audiohal/AudioHalVersionInfo.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <string>
+#include <utility>
+#include <android/media/AudioHalVersion.h>
+
+namespace android::detail {
+
+class AudioHalVersionInfo : public android::media::AudioHalVersion {
+  public:
+    AudioHalVersionInfo(Type halType, int halMajor, int halMinor = 0) {
+        type = halType;
+        major = halMajor;
+        minor = halMinor;
+    }
+
+    Type getType() const { return type; }
+
+    int getMajorVersion() const { return major; }
+
+    int getMinorVersion() const { return minor; }
+
+    /** Keep HIDL version format as is for backward compatibility, only add prefix for AIDL. */
+    std::string toVersionString() const {
+        std::string versionStr =
+                android::internal::ToString(major) + "." + android::internal::ToString(minor);
+        if (type == Type::AIDL) {
+            return "aidl";
+        } else {
+            return versionStr;
+        }
+    }
+};
+
+} // namespace android
diff --git a/media/libaudiohal/include/media/audiohal/DevicesFactoryHalInterface.h b/media/libaudiohal/include/media/audiohal/DevicesFactoryHalInterface.h
index 17010e6..be3a723 100644
--- a/media/libaudiohal/include/media/audiohal/DevicesFactoryHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/DevicesFactoryHalInterface.h
@@ -14,14 +14,15 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
-#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
+#pragma once
 
 #include <media/audiohal/DeviceHalInterface.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 #include <vector>
 
+#include "AudioHalVersionInfo.h"
+
 namespace android {
 
 class DevicesFactoryHalCallback : public RefBase
@@ -43,7 +44,7 @@
     // The callback can be only set once.
     virtual status_t setCallbackOnce(sp<DevicesFactoryHalCallback> callback) = 0;
 
-    virtual float getHalVersion() const = 0;
+    virtual android::detail::AudioHalVersionInfo getHalVersion() const = 0;
 
     static sp<DevicesFactoryHalInterface> create();
 
@@ -55,5 +56,3 @@
 };
 
 } // namespace android
-
-#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h b/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
index 3e505bd..d740fe9 100644
--- a/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
@@ -14,14 +14,16 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
-#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
+#pragma once
 
 #include <media/audiohal/EffectHalInterface.h>
 #include <system/audio_effect.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
+#include "AudioHalVersionInfo.h"
+#include "FactoryHal.h"
+
 namespace android {
 
 class EffectsFactoryHalInterface : public RefBase
@@ -49,16 +51,16 @@
 
     virtual status_t dumpEffects(int fd) = 0;
 
-    virtual float getHalVersion() = 0;
-
     static sp<EffectsFactoryHalInterface> create();
 
     virtual status_t allocateBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) = 0;
     virtual status_t mirrorBuffer(void* external, size_t size,
                                   sp<EffectBufferHalInterface>* buffer) = 0;
 
+    virtual android::detail::AudioHalVersionInfo getHalVersion() const = 0;
+
     // Helper function to compare effect uuid to EFFECT_UUID_NULL.
-    static bool isNullUuid(const effect_uuid_t *pEffectUuid);
+    static bool isNullUuid(const effect_uuid_t* pEffectUuid);
 
   protected:
     // Subclasses can not be constructed directly by clients.
@@ -68,5 +70,3 @@
 };
 
 } // namespace android
-
-#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/media/audiohal/FactoryHalHidl.h b/media/libaudiohal/include/media/audiohal/FactoryHal.h
similarity index 62%
rename from media/libaudiohal/include/media/audiohal/FactoryHalHidl.h
rename to media/libaudiohal/include/media/audiohal/FactoryHal.h
index 866dd3e..4776d98 100644
--- a/media/libaudiohal/include/media/audiohal/FactoryHalHidl.h
+++ b/media/libaudiohal/include/media/audiohal/FactoryHal.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 The Android Open Source Project
+ * Copyright (C) 2022 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.
@@ -14,24 +14,19 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_HARDWARE_FACTORY_HAL_HIDL_H
-#define ANDROID_HARDWARE_FACTORY_HAL_HIDL_H
+#pragma once
 
 #include <string>
 #include <utility>
-
 #include <utils/StrongPointer.h>
 
+#include "AudioHalVersionInfo.h"
+
 namespace android {
 
-// The pair of the interface's package name and the interface name,
-// e.g. <"android.hardware.audio", "IDevicesFactory">.
-// Splitting is used for easier construction of versioned names (FQNs).
-using InterfaceName = std::pair<std::string, std::string>;
-
 namespace detail {
 
-void* createPreferredImpl(const InterfaceName& iface, const InterfaceName& siblingIface);
+void* createPreferredImpl(bool isCore);
 
 }  // namespace detail
 
@@ -45,17 +40,12 @@
  * shared libraries the loader function considers which interface among two has the most
  * recent version. Thus, a pair of interface names must be passed in.
  *
- * @param iface the interface that needs to be created.
- * @param siblingIface the interface which occupies the same shared library.
+ * @param isCore Indicating if this is audio Core HAL service interface.
  * @return the preferred available implementation or nullptr if none are available.
  */
+
 template <class Interface>
-static sp<Interface> createPreferredImpl(
-        const InterfaceName& iface, const InterfaceName& siblingIface) {
-    return sp<Interface>{
-        static_cast<Interface*>(detail::createPreferredImpl(iface, siblingIface))};
+static sp<Interface> createPreferredImpl(bool isCore) {
+    return sp<Interface>{static_cast<Interface*>(detail::createPreferredImpl(isCore))};
 }
-
 } // namespace android
-
-#endif // ANDROID_HARDWARE_FACTORY_HAL_HIDL_H
diff --git a/services/audioflinger/DeviceEffectManager.cpp b/services/audioflinger/DeviceEffectManager.cpp
index a614736..bd0d7fb 100644
--- a/services/audioflinger/DeviceEffectManager.cpp
+++ b/services/audioflinger/DeviceEffectManager.cpp
@@ -30,6 +30,7 @@
 
 namespace android {
 
+using media::AudioHalVersion;
 using media::IEffectClient;
 
 void AudioFlinger::DeviceEffectManager::onCreateAudioPatch(audio_patch_handle_t handle,
@@ -115,14 +116,19 @@
         return BAD_VALUE;
     }
 
-    static const float sMinDeviceEffectHalVersion = 6.0;
-    float halVersion = effectsFactory->getHalVersion();
+    static AudioHalVersion sMinDeviceEffectHalVersion;
+    sMinDeviceEffectHalVersion.type = AudioHalVersion::Type::HIDL;
+    sMinDeviceEffectHalVersion.major = 6;
+    sMinDeviceEffectHalVersion.minor = 0;
+    AudioHalVersion halVersion = effectsFactory->getHalVersion();
 
+    // We can trust AIDL generated AudioHalVersion comparison operator (based on std::tie) as long
+    // as the type, major and minor sequence doesn't change in the definition.
     if (((desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC
             && (desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_POST_PROC)
             || halVersion < sMinDeviceEffectHalVersion) {
-        ALOGW("%s() non pre/post processing device effect %s or incompatible API version %f",
-                __func__, desc->name, halVersion);
+        ALOGW("%s() non pre/post processing device effect %s or incompatible API version %s",
+                __func__, desc->name, halVersion.toString().c_str());
         return BAD_VALUE;
     }