diff --git a/audio/aidl/default/Stream.cpp b/audio/aidl/default/Stream.cpp
index e8c1693..a805b87 100644
--- a/audio/aidl/default/Stream.cpp
+++ b/audio/aidl/default/Stream.cpp
@@ -582,7 +582,7 @@
     const size_t frameSize = mContext->getFrameSize();
     bool fatal = false;
     int32_t latency = mContext->getNominalLatencyMs();
-    if (bool success = readByteCount > 0 ? dataMQ->read(&mDataBuffer[0], readByteCount) : true) {
+    if (readByteCount > 0 ? dataMQ->read(&mDataBuffer[0], readByteCount) : true) {
         const bool isConnected = mIsConnected;
         LOG(VERBOSE) << __func__ << ": reading of " << readByteCount << " bytes from data MQ"
                      << " succeeded; connected? " << isConnected;
diff --git a/audio/common/all-versions/default/service/android.hardware.audio.service.rc b/audio/common/all-versions/default/service/android.hardware.audio.service.rc
index 0de4eea..a1df67a 100644
--- a/audio/common/all-versions/default/service/android.hardware.audio.service.rc
+++ b/audio/common/all-versions/default/service/android.hardware.audio.service.rc
@@ -2,7 +2,7 @@
     class hal
     user audioserver
     # media gid needed for /dev/fm (radio) and for /data/misc/media (tee)
-    group audio camera drmrpc inet media mediadrm net_bt net_bt_admin net_bw_acct wakelock context_hub
+    group audio camera drmrpc inet media mediadrm net_bt net_bt_admin net_bw_acct wakelock context_hub system
     capabilities BLOCK_SUSPEND SYS_NICE
     # setting RLIMIT_RTPRIO allows binder RT priority inheritance
     rlimit rtprio 10 10
diff --git a/automotive/can/1.0/default/libnetdevice/libnetdevice.cpp b/automotive/can/1.0/default/libnetdevice/libnetdevice.cpp
index aad07de..fe749f6 100644
--- a/automotive/can/1.0/default/libnetdevice/libnetdevice.cpp
+++ b/automotive/can/1.0/default/libnetdevice/libnetdevice.cpp
@@ -102,7 +102,7 @@
 
 static bool hasIpv4(std::string ifname) {
     auto ifr = ifreqs::fromName(ifname);
-    switch (const auto status = ifreqs::trySend(SIOCGIFADDR, ifr)) {
+    switch (ifreqs::trySend(SIOCGIFADDR, ifr)) {
         case 0:
             return true;
         case EADDRNOTAVAIL:
diff --git a/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/include/LinearFakeValueGenerator.h b/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/include/LinearFakeValueGenerator.h
index d2b701d..2378676 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/include/LinearFakeValueGenerator.h
+++ b/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/include/LinearFakeValueGenerator.h
@@ -57,7 +57,7 @@
         float dispersion;    //  Defines minimum and maximum value based on initial value.
         float increment;     //  Value that we will be added to currentValue with each timer tick.
         int64_t interval;
-        long lastEventTimestamp;
+        int64_t lastEventTimestamp;
     };
 
     GeneratorCfg mGenCfg;
diff --git a/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/src/LinearFakeValueGenerator.cpp b/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/src/LinearFakeValueGenerator.cpp
index 9133144..fe08dcf 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/src/LinearFakeValueGenerator.cpp
+++ b/automotive/vehicle/aidl/impl/fake_impl/GeneratorHub/src/LinearFakeValueGenerator.cpp
@@ -86,7 +86,7 @@
     if (mGenCfg.lastEventTimestamp == 0) {
         mGenCfg.lastEventTimestamp = elapsedRealtimeNano();
     } else {
-        long nextEventTime = mGenCfg.lastEventTimestamp + mGenCfg.interval;
+        int64_t nextEventTime = mGenCfg.lastEventTimestamp + mGenCfg.interval;
         // Prevent overflow.
         assert(nextEventTime > mGenCfg.lastEventTimestamp);
         mGenCfg.lastEventTimestamp = nextEventTime;
diff --git a/automotive/vehicle/aidl/impl/fake_impl/hardware/include/FakeVehicleHardware.h b/automotive/vehicle/aidl/impl/fake_impl/hardware/include/FakeVehicleHardware.h
index c3ebd3b..af1bb1d 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/hardware/include/FakeVehicleHardware.h
+++ b/automotive/vehicle/aidl/impl/fake_impl/hardware/include/FakeVehicleHardware.h
@@ -99,12 +99,17 @@
     const std::shared_ptr<VehiclePropValuePool> mValuePool;
     const std::shared_ptr<VehiclePropertyStore> mServerSidePropStore;
 
+    const std::string mDefaultConfigDir;
+    const std::string mOverrideConfigDir;
+
     ValueResultType getValue(
             const aidl::android::hardware::automotive::vehicle::VehiclePropValue& value) const;
 
     VhalResult<void> setValue(
             const aidl::android::hardware::automotive::vehicle::VehiclePropValue& value);
 
+    bool UseOverrideConfigDir();
+
   private:
     // Expose private methods to unit test.
     friend class FakeVehicleHardwareTestHelper;
@@ -156,8 +161,6 @@
                                   aidl::android::hardware::automotive::vehicle::SetValueRequest>
             mPendingSetValueRequests;
 
-    const std::string mDefaultConfigDir;
-    const std::string mOverrideConfigDir;
     const bool mForceOverride;
     bool mAddExtraTestVendorConfigs;
 
diff --git a/automotive/vehicle/aidl/impl/fake_impl/hardware/src/FakeVehicleHardware.cpp b/automotive/vehicle/aidl/impl/fake_impl/hardware/src/FakeVehicleHardware.cpp
index 3f5e4c4..250a226 100644
--- a/automotive/vehicle/aidl/impl/fake_impl/hardware/src/FakeVehicleHardware.cpp
+++ b/automotive/vehicle/aidl/impl/fake_impl/hardware/src/FakeVehicleHardware.cpp
@@ -39,7 +39,6 @@
 #include <dirent.h>
 #include <inttypes.h>
 #include <sys/types.h>
-#include <fstream>
 #include <regex>
 #include <unordered_set>
 #include <vector>
@@ -205,9 +204,10 @@
 
         // Create a separate instance for each individual zone
         VehiclePropValue prop = {
+                .timestamp = elapsedRealtimeNano(),
                 .areaId = curArea,
                 .prop = propId,
-                .timestamp = elapsedRealtimeNano(),
+                .value = {},
         };
 
         if (config.initialAreaValues.empty()) {
@@ -240,6 +240,8 @@
                                          std::string overrideConfigDir, bool forceOverride)
     : mValuePool(std::make_unique<VehiclePropValuePool>()),
       mServerSidePropStore(new VehiclePropertyStore(mValuePool)),
+      mDefaultConfigDir(defaultConfigDir),
+      mOverrideConfigDir(overrideConfigDir),
       mFakeObd2Frame(new obd2frame::FakeObd2Frame(mServerSidePropStore)),
       mFakeUserHal(new FakeUserHal(mValuePool)),
       mRecurrentTimer(new RecurrentTimer()),
@@ -247,8 +249,6 @@
               [this](const VehiclePropValue& value) { eventFromVehicleBus(value); })),
       mPendingGetValueRequests(this),
       mPendingSetValueRequests(this),
-      mDefaultConfigDir(defaultConfigDir),
-      mOverrideConfigDir(overrideConfigDir),
       mForceOverride(forceOverride) {
     init();
 }
@@ -259,11 +259,15 @@
     mGeneratorHub.reset();
 }
 
+bool FakeVehicleHardware::UseOverrideConfigDir() {
+    return mForceOverride ||
+           android::base::GetBoolProperty(OVERRIDE_PROPERTY, /*default_value=*/false);
+}
+
 std::unordered_map<int32_t, ConfigDeclaration> FakeVehicleHardware::loadConfigDeclarations() {
     std::unordered_map<int32_t, ConfigDeclaration> configsByPropId;
     loadPropConfigsFromDir(mDefaultConfigDir, &configsByPropId);
-    if (mForceOverride ||
-        android::base::GetBoolProperty(OVERRIDE_PROPERTY, /*default_value=*/false)) {
+    if (UseOverrideConfigDir()) {
         loadPropConfigsFromDir(mOverrideConfigDir, &configsByPropId);
     }
     return configsByPropId;
@@ -938,7 +942,7 @@
                    << StringPrintf("failed to get special value: %d, error: %s", value.prop,
                                    getErrorMsg(result).c_str());
         } else {
-            return std::move(result);
+            return result;
         }
     }
 
@@ -953,7 +957,7 @@
         }
     }
 
-    return std::move(readResult);
+    return readResult;
 }
 
 DumpResult FakeVehicleHardware::dump(const std::vector<std::string>& options) {
@@ -990,9 +994,11 @@
     } else if (EqualsIgnoreCase(option, "--genTestVendorConfigs")) {
         mAddExtraTestVendorConfigs = true;
         result.refreshPropertyConfigs = true;
+        result.buffer = "successfully generated vendor configs";
     } else if (EqualsIgnoreCase(option, "--restoreVendorConfigs")) {
         mAddExtraTestVendorConfigs = false;
         result.refreshPropertyConfigs = true;
+        result.buffer = "successfully restored vendor configs";
     } else {
         result.buffer = StringPrintf("Invalid option: %s\n", option.c_str());
     }
@@ -1328,9 +1334,9 @@
 VehiclePropValue FakeVehicleHardware::createHwInputKeyProp(VehicleHwKeyInputAction action,
                                                            int32_t keyCode, int32_t targetDisplay) {
     VehiclePropValue value = {
-            .prop = toInt(VehicleProperty::HW_KEY_INPUT),
-            .areaId = 0,
             .timestamp = elapsedRealtimeNano(),
+            .areaId = 0,
+            .prop = toInt(VehicleProperty::HW_KEY_INPUT),
             .status = VehiclePropertyStatus::AVAILABLE,
             .value.int32Values = {toInt(action), keyCode, targetDisplay},
     };
@@ -1340,9 +1346,9 @@
 VehiclePropValue FakeVehicleHardware::createHwKeyInputV2Prop(int32_t area, int32_t targetDisplay,
                                                              int32_t keyCode, int32_t action,
                                                              int32_t repeatCount) {
-    VehiclePropValue value = {.prop = toInt(VehicleProperty::HW_KEY_INPUT_V2),
+    VehiclePropValue value = {.timestamp = elapsedRealtimeNano(),
                               .areaId = area,
-                              .timestamp = elapsedRealtimeNano(),
+                              .prop = toInt(VehicleProperty::HW_KEY_INPUT_V2),
                               .status = VehiclePropertyStatus::AVAILABLE,
                               .value.int32Values = {targetDisplay, keyCode, action, repeatCount},
                               .value.int64Values = {elapsedRealtimeNano()}};
@@ -1380,9 +1386,9 @@
         floatValues.push_back(size[i]);
     }
 
-    VehiclePropValue value = {.prop = toInt(VehicleProperty::HW_MOTION_INPUT),
+    VehiclePropValue value = {.timestamp = elapsedRealtimeNano(),
                               .areaId = area,
-                              .timestamp = elapsedRealtimeNano(),
+                              .prop = toInt(VehicleProperty::HW_MOTION_INPUT),
                               .status = VehiclePropertyStatus::AVAILABLE,
                               .value.int32Values = intValues,
                               .value.floatValues = floatValues,
@@ -1451,8 +1457,9 @@
 
 std::string FakeVehicleHardware::dumpOnePropertyById(int32_t propId, int32_t areaId) {
     VehiclePropValue value = {
-            .prop = propId,
             .areaId = areaId,
+            .prop = propId,
+            .value = {},
     };
     bool isSpecialValue = false;
     auto result = maybeGetSpecialValue(value, &isSpecialValue);
@@ -1523,12 +1530,12 @@
     while (*index < options.size()) {
         std::string option = options[*index];
         if (SET_PROP_OPTIONS.find(option) != SET_PROP_OPTIONS.end()) {
-            return std::move(values);
+            return values;
         }
         values.push_back(option);
         (*index)++;
     }
-    return std::move(values);
+    return values;
 }
 
 Result<VehiclePropValue> FakeVehicleHardware::parsePropOptions(
@@ -1808,6 +1815,7 @@
 
 void FakeVehicleHardware::registerOnPropertySetErrorEvent(
         std::unique_ptr<const PropertySetErrorCallback> callback) {
+    // In FakeVehicleHardware, we will never use mOnPropertySetErrorCallback.
     if (mOnPropertySetErrorCallback != nullptr) {
         ALOGE("registerOnPropertySetErrorEvent must only be called once");
         return;
@@ -1836,8 +1844,9 @@
         // Refresh the property value. In real implementation, this should poll the latest value
         // from vehicle bus. Here, we are just refreshing the existing value with a new timestamp.
         auto result = getValue(VehiclePropValue{
-                .prop = propId,
                 .areaId = areaId,
+                .prop = propId,
+                .value = {},
         });
         if (!result.ok()) {
             // Failed to read current value, skip refreshing.
diff --git a/automotive/vehicle/aidl/impl/grpc/GRPCVehicleHardware.h b/automotive/vehicle/aidl/impl/grpc/GRPCVehicleHardware.h
index e740da7..ddd620e 100644
--- a/automotive/vehicle/aidl/impl/grpc/GRPCVehicleHardware.h
+++ b/automotive/vehicle/aidl/impl/grpc/GRPCVehicleHardware.h
@@ -82,6 +82,10 @@
 
     bool waitForConnected(std::chrono::milliseconds waitTime);
 
+  protected:
+    std::shared_mutex mCallbackMutex;
+    std::unique_ptr<const PropertyChangeCallback> mOnPropChange;
+
   private:
     void ValuePollingLoop();
 
@@ -90,8 +94,6 @@
     std::unique_ptr<proto::VehicleServer::Stub> mGrpcStub;
     std::thread mValuePollingThread;
 
-    std::shared_mutex mCallbackMutex;
-    std::unique_ptr<const PropertyChangeCallback> mOnPropChange;
     std::unique_ptr<const PropertySetErrorCallback> mOnSetErr;
 
     std::mutex mShutdownMutex;
diff --git a/automotive/vehicle/aidl/impl/vhal/include/ConnectedClient.h b/automotive/vehicle/aidl/impl/vhal/include/ConnectedClient.h
index 2e7298f..b3f4a0f 100644
--- a/automotive/vehicle/aidl/impl/vhal/include/ConnectedClient.h
+++ b/automotive/vehicle/aidl/impl/vhal/include/ConnectedClient.h
@@ -107,12 +107,18 @@
     // Gets the callback to be called when the request for this client has finished.
     std::shared_ptr<const IVehicleHardware::GetValuesCallback> getResultCallback();
 
-    // Marshals the updated values into largeParcelable and sents it through {@code onPropertyEvent}
+    // Marshals the updated values into largeParcelable and sends it through {@code onPropertyEvent}
     // callback.
     static void sendUpdatedValues(
             CallbackType callback,
             std::vector<aidl::android::hardware::automotive::vehicle::VehiclePropValue>&&
                     updatedValues);
+    // Marshals the set property error events into largeParcelable and sends it through
+    // {@code onPropertySetError} callback.
+    static void sendPropertySetErrors(
+            CallbackType callback,
+            std::vector<aidl::android::hardware::automotive::vehicle::VehiclePropError>&&
+                    vehiclePropErrors);
 
   protected:
     // Gets the callback to be called when the request for this client has timeout.
diff --git a/automotive/vehicle/aidl/impl/vhal/include/DefaultVehicleHal.h b/automotive/vehicle/aidl/impl/vhal/include/DefaultVehicleHal.h
index 2c2cf1a..74ad7ea 100644
--- a/automotive/vehicle/aidl/impl/vhal/include/DefaultVehicleHal.h
+++ b/automotive/vehicle/aidl/impl/vhal/include/DefaultVehicleHal.h
@@ -249,10 +249,14 @@
             const CallbackType& callback, std::shared_ptr<PendingRequestPool> pendingRequestPool);
 
     static void onPropertyChangeEvent(
-            std::weak_ptr<SubscriptionManager> subscriptionManager,
+            const std::weak_ptr<SubscriptionManager>& subscriptionManager,
             const std::vector<aidl::android::hardware::automotive::vehicle::VehiclePropValue>&
                     updatedValues);
 
+    static void onPropertySetErrorEvent(
+            const std::weak_ptr<SubscriptionManager>& subscriptionManager,
+            const std::vector<SetValueErrorEvent>& errorEvents);
+
     static void checkHealth(IVehicleHardware* hardware,
                             std::weak_ptr<SubscriptionManager> subscriptionManager);
 
diff --git a/automotive/vehicle/aidl/impl/vhal/include/SubscriptionManager.h b/automotive/vehicle/aidl/impl/vhal/include/SubscriptionManager.h
index 14799d9..301d56c 100644
--- a/automotive/vehicle/aidl/impl/vhal/include/SubscriptionManager.h
+++ b/automotive/vehicle/aidl/impl/vhal/include/SubscriptionManager.h
@@ -99,6 +99,12 @@
             const std::vector<aidl::android::hardware::automotive::vehicle::VehiclePropValue>&
                     updatedValues);
 
+    // For a list of set property error events, returns a map that maps clients subscribing to the
+    // properties to a list of errors for each client.
+    std::unordered_map<CallbackType,
+                       std::vector<aidl::android::hardware::automotive::vehicle::VehiclePropError>>
+    getSubscribedClientsForErrorEvents(const std::vector<SetValueErrorEvent>& errorEvents);
+
     // Checks whether the sample rate is valid.
     static bool checkSampleRateHz(float sampleRateHz);
 
diff --git a/automotive/vehicle/aidl/impl/vhal/src/ConnectedClient.cpp b/automotive/vehicle/aidl/impl/vhal/src/ConnectedClient.cpp
index 81d231c..fb23a25 100644
--- a/automotive/vehicle/aidl/impl/vhal/src/ConnectedClient.cpp
+++ b/automotive/vehicle/aidl/impl/vhal/src/ConnectedClient.cpp
@@ -38,6 +38,8 @@
 using ::aidl::android::hardware::automotive::vehicle::SetValueResult;
 using ::aidl::android::hardware::automotive::vehicle::SetValueResults;
 using ::aidl::android::hardware::automotive::vehicle::StatusCode;
+using ::aidl::android::hardware::automotive::vehicle::VehiclePropError;
+using ::aidl::android::hardware::automotive::vehicle::VehiclePropErrors;
 using ::aidl::android::hardware::automotive::vehicle::VehiclePropValue;
 using ::aidl::android::hardware::automotive::vehicle::VehiclePropValues;
 using ::android::base::Result;
@@ -300,7 +302,34 @@
     if (ScopedAStatus callbackStatus =
                 callback->onPropertyEvent(vehiclePropValues, sharedMemoryFileCount);
         !callbackStatus.isOk()) {
-        ALOGE("subscribe: failed to call UpdateValues callback, client ID: %p, error: %s, "
+        ALOGE("subscribe: failed to call onPropertyEvent callback, client ID: %p, error: %s, "
+              "exception: %d, service specific error: %d",
+              callback->asBinder().get(), callbackStatus.getMessage(),
+              callbackStatus.getExceptionCode(), callbackStatus.getServiceSpecificError());
+    }
+}
+
+void SubscriptionClient::sendPropertySetErrors(std::shared_ptr<IVehicleCallback> callback,
+                                               std::vector<VehiclePropError>&& vehiclePropErrors) {
+    if (vehiclePropErrors.empty()) {
+        return;
+    }
+
+    VehiclePropErrors vehiclePropErrorsLargeParcelable;
+    ScopedAStatus status = vectorToStableLargeParcelable(std::move(vehiclePropErrors),
+                                                         &vehiclePropErrorsLargeParcelable);
+    if (!status.isOk()) {
+        int statusCode = status.getServiceSpecificError();
+        ALOGE("subscribe: failed to marshal result into large parcelable, error: "
+              "%s, code: %d",
+              status.getMessage(), statusCode);
+        return;
+    }
+
+    if (ScopedAStatus callbackStatus =
+                callback->onPropertySetError(vehiclePropErrorsLargeParcelable);
+        !callbackStatus.isOk()) {
+        ALOGE("subscribe: failed to call onPropertySetError callback, client ID: %p, error: %s, "
               "exception: %d, service specific error: %d",
               callback->asBinder().get(), callbackStatus.getMessage(),
               callbackStatus.getExceptionCode(), callbackStatus.getServiceSpecificError());
diff --git a/automotive/vehicle/aidl/impl/vhal/src/DefaultVehicleHal.cpp b/automotive/vehicle/aidl/impl/vhal/src/DefaultVehicleHal.cpp
index 98cfc39..0d5c070 100644
--- a/automotive/vehicle/aidl/impl/vhal/src/DefaultVehicleHal.cpp
+++ b/automotive/vehicle/aidl/impl/vhal/src/DefaultVehicleHal.cpp
@@ -144,6 +144,11 @@
                     [subscriptionManagerCopy](std::vector<VehiclePropValue> updatedValues) {
                         onPropertyChangeEvent(subscriptionManagerCopy, updatedValues);
                     }));
+    mVehicleHardware->registerOnPropertySetErrorEvent(
+            std::make_unique<IVehicleHardware::PropertySetErrorCallback>(
+                    [subscriptionManagerCopy](std::vector<SetValueErrorEvent> errorEvents) {
+                        onPropertySetErrorEvent(subscriptionManagerCopy, errorEvents);
+                    }));
 
     // Register heartbeat event.
     mRecurrentAction = std::make_shared<std::function<void()>>(
@@ -177,7 +182,7 @@
 }
 
 void DefaultVehicleHal::onPropertyChangeEvent(
-        std::weak_ptr<SubscriptionManager> subscriptionManager,
+        const std::weak_ptr<SubscriptionManager>& subscriptionManager,
         const std::vector<VehiclePropValue>& updatedValues) {
     auto manager = subscriptionManager.lock();
     if (manager == nullptr) {
@@ -194,6 +199,20 @@
     }
 }
 
+void DefaultVehicleHal::onPropertySetErrorEvent(
+        const std::weak_ptr<SubscriptionManager>& subscriptionManager,
+        const std::vector<SetValueErrorEvent>& errorEvents) {
+    auto manager = subscriptionManager.lock();
+    if (manager == nullptr) {
+        ALOGW("the SubscriptionManager is destroyed, DefaultVehicleHal is ending");
+        return;
+    }
+    auto vehiclePropErrorsByClient = manager->getSubscribedClientsForErrorEvents(errorEvents);
+    for (auto& [callback, vehiclePropErrors] : vehiclePropErrorsByClient) {
+        SubscriptionClient::sendPropertySetErrors(callback, std::move(vehiclePropErrors));
+    }
+}
+
 template <class T>
 std::shared_ptr<T> DefaultVehicleHal::getOrCreateClient(
         std::unordered_map<const AIBinder*, std::shared_ptr<T>>* clients,
@@ -692,15 +711,19 @@
         // Create a new SubscriptionClient if there isn't an existing one.
         mSubscriptionClients->maybeAddClient(callback);
 
-        // Since we have already check the sample rates, the following functions must succeed.
         if (!onChangeSubscriptions.empty()) {
-            return toScopedAStatus(mSubscriptionManager->subscribe(callback, onChangeSubscriptions,
-                                                                   /*isContinuousProperty=*/false));
+            auto result = mSubscriptionManager->subscribe(callback, onChangeSubscriptions,
+                                                          /*isContinuousProperty=*/false);
+            if (!result.ok()) {
+                return toScopedAStatus(result);
+            }
         }
         if (!continuousSubscriptions.empty()) {
-            return toScopedAStatus(mSubscriptionManager->subscribe(callback,
-                                                                   continuousSubscriptions,
-                                                                   /*isContinuousProperty=*/true));
+            auto result = mSubscriptionManager->subscribe(callback, continuousSubscriptions,
+                                                          /*isContinuousProperty=*/true);
+            if (!result.ok()) {
+                return toScopedAStatus(result);
+            }
         }
     }
     return ScopedAStatus::ok();
diff --git a/automotive/vehicle/aidl/impl/vhal/src/SubscriptionManager.cpp b/automotive/vehicle/aidl/impl/vhal/src/SubscriptionManager.cpp
index bba730f..1f2690e 100644
--- a/automotive/vehicle/aidl/impl/vhal/src/SubscriptionManager.cpp
+++ b/automotive/vehicle/aidl/impl/vhal/src/SubscriptionManager.cpp
@@ -36,6 +36,7 @@
 using ::aidl::android::hardware::automotive::vehicle::IVehicleCallback;
 using ::aidl::android::hardware::automotive::vehicle::StatusCode;
 using ::aidl::android::hardware::automotive::vehicle::SubscribeOptions;
+using ::aidl::android::hardware::automotive::vehicle::VehiclePropError;
 using ::aidl::android::hardware::automotive::vehicle::VehiclePropValue;
 using ::android::base::Error;
 using ::android::base::Result;
@@ -269,6 +270,32 @@
     return clients;
 }
 
+std::unordered_map<std::shared_ptr<IVehicleCallback>, std::vector<VehiclePropError>>
+SubscriptionManager::getSubscribedClientsForErrorEvents(
+        const std::vector<SetValueErrorEvent>& errorEvents) {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    std::unordered_map<std::shared_ptr<IVehicleCallback>, std::vector<VehiclePropError>> clients;
+
+    for (const auto& errorEvent : errorEvents) {
+        PropIdAreaId propIdAreaId{
+                .propId = errorEvent.propId,
+                .areaId = errorEvent.areaId,
+        };
+        if (mClientsByPropIdArea.find(propIdAreaId) == mClientsByPropIdArea.end()) {
+            continue;
+        }
+
+        for (const auto& [_, client] : mClientsByPropIdArea[propIdAreaId]) {
+            clients[client].push_back({
+                    .propId = errorEvent.propId,
+                    .areaId = errorEvent.areaId,
+                    .errorCode = errorEvent.errorCode,
+            });
+        }
+    }
+    return clients;
+}
+
 bool SubscriptionManager::isEmpty() {
     std::scoped_lock<std::mutex> lockGuard(mLock);
     return mSubscribedPropsByClient.empty() && mClientsByPropIdArea.empty();
diff --git a/automotive/vehicle/aidl/impl/vhal/test/DefaultVehicleHalTest.cpp b/automotive/vehicle/aidl/impl/vhal/test/DefaultVehicleHalTest.cpp
index 05e569a..96b71f0 100644
--- a/automotive/vehicle/aidl/impl/vhal/test/DefaultVehicleHalTest.cpp
+++ b/automotive/vehicle/aidl/impl/vhal/test/DefaultVehicleHalTest.cpp
@@ -62,6 +62,7 @@
 using ::aidl::android::hardware::automotive::vehicle::VehicleAreaWindow;
 using ::aidl::android::hardware::automotive::vehicle::VehiclePropConfig;
 using ::aidl::android::hardware::automotive::vehicle::VehiclePropConfigs;
+using ::aidl::android::hardware::automotive::vehicle::VehiclePropError;
 using ::aidl::android::hardware::automotive::vehicle::VehiclePropErrors;
 using ::aidl::android::hardware::automotive::vehicle::VehicleProperty;
 using ::aidl::android::hardware::automotive::vehicle::VehiclePropertyAccess;
@@ -1653,6 +1654,63 @@
     ASSERT_EQ(msg.find("Vehicle HAL State: "), std::string::npos);
 }
 
+TEST_F(DefaultVehicleHalTest, testOnPropertySetErrorEvent) {
+    std::vector<SubscribeOptions> options = {
+            {
+                    .propId = GLOBAL_ON_CHANGE_PROP,
+                    .areaIds = {0},
+            },
+            {
+                    .propId = GLOBAL_CONTINUOUS_PROP,
+                    .areaIds = {0},
+                    .sampleRate = 1,
+            },
+    };
+    auto status = getClient()->subscribe(getCallbackClient(), options, 0);
+    ASSERT_TRUE(status.isOk()) << "subscribe failed: " << status.getMessage();
+    std::vector<SetValueErrorEvent> errorEvents = {
+            {
+                    .propId = GLOBAL_ON_CHANGE_PROP,
+                    .areaId = 0,
+                    .errorCode = StatusCode::INTERNAL_ERROR,
+            },
+            {
+                    .propId = GLOBAL_ON_CHANGE_PROP,
+                    .areaId = 0,
+                    .errorCode = StatusCode::ACCESS_DENIED,
+            },
+            {
+                    .propId = GLOBAL_CONTINUOUS_PROP,
+                    .areaId = 0,
+                    .errorCode = StatusCode::INVALID_ARG,
+            },
+    };
+    std::vector<VehiclePropError> expectedResults = {
+            {
+                    .propId = GLOBAL_ON_CHANGE_PROP,
+                    .areaId = 0,
+                    .errorCode = StatusCode::INTERNAL_ERROR,
+            },
+            {
+                    .propId = GLOBAL_ON_CHANGE_PROP,
+                    .areaId = 0,
+                    .errorCode = StatusCode::ACCESS_DENIED,
+            },
+            {
+                    .propId = GLOBAL_CONTINUOUS_PROP,
+                    .areaId = 0,
+                    .errorCode = StatusCode::INVALID_ARG,
+            },
+    };
+    getHardware()->sendOnPropertySetErrorEvent(errorEvents);
+
+    ASSERT_EQ(getCallback()->countOnPropertySetErrorResults(), 1u);
+    auto maybeVehiclePropErrors = getCallback()->nextOnPropertySetErrorResults();
+    ASSERT_TRUE(maybeVehiclePropErrors.has_value());
+    const auto& vehiclePropErrors = maybeVehiclePropErrors.value();
+    ASSERT_THAT(vehiclePropErrors.payloads, UnorderedElementsAreArray(expectedResults));
+}
+
 }  // namespace vehicle
 }  // namespace automotive
 }  // namespace hardware
diff --git a/automotive/vehicle/aidl/impl/vhal/test/MockVehicleCallback.cpp b/automotive/vehicle/aidl/impl/vhal/test/MockVehicleCallback.cpp
index f51ce5c..54fede1 100644
--- a/automotive/vehicle/aidl/impl/vhal/test/MockVehicleCallback.cpp
+++ b/automotive/vehicle/aidl/impl/vhal/test/MockVehicleCallback.cpp
@@ -81,8 +81,14 @@
     return result;
 }
 
-ScopedAStatus MockVehicleCallback::onPropertySetError(const VehiclePropErrors&) {
-    return ScopedAStatus::ok();
+ScopedAStatus MockVehicleCallback::onPropertySetError(const VehiclePropErrors& results) {
+    ScopedAStatus result;
+    {
+        std::scoped_lock<std::mutex> lockGuard(mLock);
+        result = storeResults(results, &mOnPropertySetErrorResults);
+    }
+    mCond.notify_all();
+    return result;
 }
 
 std::optional<GetValueResults> MockVehicleCallback::nextGetValueResults() {
@@ -105,6 +111,16 @@
     return mOnPropertyEventResults.size();
 }
 
+std::optional<VehiclePropErrors> MockVehicleCallback::nextOnPropertySetErrorResults() {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    return pop(mOnPropertySetErrorResults);
+}
+
+size_t MockVehicleCallback::countOnPropertySetErrorResults() {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    return mOnPropertySetErrorResults.size();
+}
+
 bool MockVehicleCallback::waitForSetValueResults(size_t size, size_t timeoutInNano) {
     std::unique_lock lk(mLock);
     return mCond.wait_for(lk, std::chrono::nanoseconds(timeoutInNano), [this, size] {
diff --git a/automotive/vehicle/aidl/impl/vhal/test/MockVehicleCallback.h b/automotive/vehicle/aidl/impl/vhal/test/MockVehicleCallback.h
index f17b273..1545eae 100644
--- a/automotive/vehicle/aidl/impl/vhal/test/MockVehicleCallback.h
+++ b/automotive/vehicle/aidl/impl/vhal/test/MockVehicleCallback.h
@@ -63,6 +63,9 @@
     nextSetValueResults();
     std::optional<aidl::android::hardware::automotive::vehicle::VehiclePropValues>
     nextOnPropertyEventResults();
+    size_t countOnPropertySetErrorResults();
+    std::optional<aidl::android::hardware::automotive::vehicle::VehiclePropErrors>
+    nextOnPropertySetErrorResults();
     size_t countOnPropertyEventResults();
     bool waitForSetValueResults(size_t size, size_t timeoutInNano);
     bool waitForGetValueResults(size_t size, size_t timeoutInNano);
@@ -77,6 +80,8 @@
     std::list<aidl::android::hardware::automotive::vehicle::VehiclePropValues>
             mOnPropertyEventResults GUARDED_BY(mLock);
     int32_t mSharedMemoryFileCount GUARDED_BY(mLock);
+    std::list<aidl::android::hardware::automotive::vehicle::VehiclePropErrors>
+            mOnPropertySetErrorResults GUARDED_BY(mLock);
 };
 
 }  // namespace vehicle
diff --git a/automotive/vehicle/aidl/impl/vhal/test/MockVehicleHardware.cpp b/automotive/vehicle/aidl/impl/vhal/test/MockVehicleHardware.cpp
index 4df4e1a..ba0d33d 100644
--- a/automotive/vehicle/aidl/impl/vhal/test/MockVehicleHardware.cpp
+++ b/automotive/vehicle/aidl/impl/vhal/test/MockVehicleHardware.cpp
@@ -131,8 +131,9 @@
 }
 
 void MockVehicleHardware::registerOnPropertySetErrorEvent(
-        std::unique_ptr<const PropertySetErrorCallback>) {
-    // TODO(b/200737967): mock this.
+        std::unique_ptr<const PropertySetErrorCallback> callback) {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    mPropertySetErrorCallback = std::move(callback);
 }
 
 void MockVehicleHardware::setPropertyConfigs(const std::vector<VehiclePropConfig>& configs) {
@@ -254,6 +255,12 @@
         std::list<std::vector<SetValueRequest>>* storedRequests,
         std::list<std::vector<SetValueResult>>* storedResponses) const;
 
+void MockVehicleHardware::sendOnPropertySetErrorEvent(
+        const std::vector<SetValueErrorEvent>& errorEvents) {
+    std::scoped_lock<std::mutex> lockGuard(mLock);
+    (*mPropertySetErrorCallback)(errorEvents);
+}
+
 }  // namespace vehicle
 }  // namespace automotive
 }  // namespace hardware
diff --git a/automotive/vehicle/aidl/impl/vhal/test/MockVehicleHardware.h b/automotive/vehicle/aidl/impl/vhal/test/MockVehicleHardware.h
index 743841c..46b30b9 100644
--- a/automotive/vehicle/aidl/impl/vhal/test/MockVehicleHardware.h
+++ b/automotive/vehicle/aidl/impl/vhal/test/MockVehicleHardware.h
@@ -85,6 +85,7 @@
                    aidl::android::hardware::automotive::vehicle::StatusCode status);
     void setSleepTime(int64_t timeInNano);
     void setDumpResult(DumpResult result);
+    void sendOnPropertySetErrorEvent(const std::vector<SetValueErrorEvent>& errorEvents);
 
   private:
     mutable std::mutex mLock;
@@ -104,6 +105,7 @@
             mStatusByFunctions GUARDED_BY(mLock);
     int64_t mSleepTime GUARDED_BY(mLock) = 0;
     std::unique_ptr<const PropertyChangeCallback> mPropertyChangeCallback GUARDED_BY(mLock);
+    std::unique_ptr<const PropertySetErrorCallback> mPropertySetErrorCallback GUARDED_BY(mLock);
     std::function<aidl::android::hardware::automotive::vehicle::StatusCode(
             std::shared_ptr<const GetValuesCallback>,
             const std::vector<aidl::android::hardware::automotive::vehicle::GetValueRequest>&)>
diff --git a/automotive/vehicle/proto/Android.bp b/automotive/vehicle/proto/Android.bp
index 683f128..e7dabcf 100644
--- a/automotive/vehicle/proto/Android.bp
+++ b/automotive/vehicle/proto/Android.bp
@@ -27,6 +27,7 @@
     visibility: [
         "//hardware/interfaces/automotive/vehicle:__subpackages__",
         "//device/generic/car/emulator:__subpackages__",
+        "//system/software_defined_vehicle/core_services:__subpackages__",
     ],
     vendor: true,
     host_supported: true,
diff --git a/biometrics/fingerprint/aidl/default/FakeFingerprintEngine.cpp b/biometrics/fingerprint/aidl/default/FakeFingerprintEngine.cpp
index 90ec8f2..54076c8 100644
--- a/biometrics/fingerprint/aidl/default/FakeFingerprintEngine.cpp
+++ b/biometrics/fingerprint/aidl/default/FakeFingerprintEngine.cpp
@@ -31,6 +31,9 @@
 
 namespace aidl::android::hardware::biometrics::fingerprint {
 
+FakeFingerprintEngine::FakeFingerprintEngine()
+    : mRandom(std::mt19937::default_seed), mWorkMode(WorkMode::kIdle) {}
+
 void FakeFingerprintEngine::generateChallengeImpl(ISessionCallback* cb) {
     BEGIN_OP(0);
     std::uniform_int_distribution<int64_t> dist;
@@ -48,7 +51,7 @@
 void FakeFingerprintEngine::enrollImpl(ISessionCallback* cb,
                                        const keymaster::HardwareAuthToken& hat,
                                        const std::future<void>& cancel) {
-    BEGIN_OP(getLatency(FingerprintHalProperties::operation_enroll_latency()));
+    BEGIN_OP(0);
 
     // Do proper HAT verification in the real implementation.
     if (hat.mac.empty()) {
@@ -57,13 +60,77 @@
         return;
     }
 
+    updateContext(WorkMode::kEnroll, cb, const_cast<std::future<void>&>(cancel), 0, hat);
+}
+
+void FakeFingerprintEngine::authenticateImpl(ISessionCallback* cb, int64_t operationId,
+                                             const std::future<void>& cancel) {
+    BEGIN_OP(0);
+    updateContext(WorkMode::kAuthenticate, cb, const_cast<std::future<void>&>(cancel), operationId,
+                  keymaster::HardwareAuthToken());
+}
+
+void FakeFingerprintEngine::detectInteractionImpl(ISessionCallback* cb,
+                                                  const std::future<void>& cancel) {
+    BEGIN_OP(0);
+
+    auto detectInteractionSupported =
+            FingerprintHalProperties::detect_interaction().value_or(false);
+    if (!detectInteractionSupported) {
+        LOG(ERROR) << "Detect interaction is not supported";
+        cb->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorError */);
+        return;
+    }
+
+    updateContext(WorkMode::kDetectInteract, cb, const_cast<std::future<void>&>(cancel), 0,
+                  keymaster::HardwareAuthToken());
+}
+
+void FakeFingerprintEngine::updateContext(WorkMode mode, ISessionCallback* cb,
+                                          std::future<void>& cancel, int64_t operationId,
+                                          const keymaster::HardwareAuthToken& hat) {
+    mCancel = std::move(cancel);
+    mWorkMode = mode;
+    mCb = cb;
+    mOperationId = operationId;
+    mHat = hat;
+}
+
+void FakeFingerprintEngine::fingerDownAction() {
+    bool isTerminal = false;
+    LOG(INFO) << __func__;
+    switch (mWorkMode) {
+        case WorkMode::kAuthenticate:
+            isTerminal = onAuthenticateFingerDown(mCb, mOperationId, mCancel);
+            break;
+        case WorkMode::kEnroll:
+            isTerminal = onEnrollFingerDown(mCb, mHat, mCancel);
+            break;
+        case WorkMode::kDetectInteract:
+            isTerminal = onDetectInteractFingerDown(mCb, mCancel);
+            break;
+        default:
+            LOG(WARNING) << "unexpected mode: on fingerDownAction(), " << (int)mWorkMode;
+            break;
+    }
+
+    if (isTerminal) {
+        mWorkMode = WorkMode::kIdle;
+    }
+}
+
+bool FakeFingerprintEngine::onEnrollFingerDown(ISessionCallback* cb,
+                                               const keymaster::HardwareAuthToken&,
+                                               const std::future<void>& cancel) {
+    BEGIN_OP(getLatency(FingerprintHalProperties::operation_enroll_latency()));
+
     // Force error-out
     auto err = FingerprintHalProperties::operation_enroll_error().value_or(0);
     if (err != 0) {
         LOG(ERROR) << "Fail: operation_enroll_error";
         auto ec = convertError(err);
         cb->onError(ec.first, ec.second);
-        return;
+        return true;
     }
 
     // Format is "<id>:<progress_ms-[acquiredInfo..]>,...:<result>
@@ -72,7 +139,7 @@
     if (parts.size() != 3) {
         LOG(ERROR) << "Fail: invalid next_enrollment:" << nextEnroll;
         cb->onError(Error::VENDOR, 0 /* vendorError */);
-        return;
+        return true;
     }
     auto enrollmentId = std::stoi(parts[0]);
     auto progress = parseEnrollmentCapture(parts[1]);
@@ -88,7 +155,7 @@
             if (shouldCancel(cancel)) {
                 LOG(ERROR) << "Fail: cancel";
                 cb->onError(Error::CANCELED, 0 /* vendorCode */);
-                return;
+                return true;
             }
             auto ac = convertAcquiredInfo(acquired[j]);
             cb->onAcquired(ac.first, ac.second);
@@ -114,10 +181,13 @@
             cb->onEnrollmentProgress(enrollmentId, left);
         }
     }
+
+    return true;
 }
 
-void FakeFingerprintEngine::authenticateImpl(ISessionCallback* cb, int64_t /* operationId */,
-                                             const std::future<void>& cancel) {
+bool FakeFingerprintEngine::onAuthenticateFingerDown(ISessionCallback* cb,
+                                                     int64_t /* operationId */,
+                                                     const std::future<void>& cancel) {
     BEGIN_OP(getLatency(FingerprintHalProperties::operation_authenticate_latency()));
 
     int64_t now = Util::getSystemNanoTime();
@@ -129,19 +199,12 @@
     if (N == 0) {
         LOG(ERROR) << "Fail to parse authentiate acquired info: " + acquired;
         cb->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorError */);
-        return;
+        return true;
     }
 
     // got lockout?
-    FakeLockoutTracker::LockoutMode lockoutMode = mLockoutTracker.getMode();
-    if (lockoutMode == FakeLockoutTracker::LockoutMode::kPermanent) {
-        LOG(ERROR) << "Fail: lockout permanent";
-        cb->onLockoutPermanent();
-        return;
-    } else if (lockoutMode == FakeLockoutTracker::LockoutMode::kTimed) {
-        int64_t timeLeft = mLockoutTracker.getLockoutTimeLeft();
-        LOG(ERROR) << "Fail: lockout timed " << timeLeft;
-        cb->onLockoutTimed(timeLeft);
+    if (checkSensorLockout(cb)) {
+        return FakeLockoutTracker::LockoutMode::kPermanent == mLockoutTracker.getMode();
     }
 
     int i = 0;
@@ -150,7 +213,7 @@
             LOG(ERROR) << "Fail: operation_authenticate_fails";
             mLockoutTracker.addFailedAttempt();
             cb->onAuthenticationFailed();
-            return;
+            return false;
         }
 
         auto err = FingerprintHalProperties::operation_authenticate_error().value_or(0);
@@ -158,20 +221,21 @@
             LOG(ERROR) << "Fail: operation_authenticate_error";
             auto ec = convertError(err);
             cb->onError(ec.first, ec.second);
-            return;
+            return true; /* simply terminating current operation for any user inserted error,
+                            revisit if tests need*/
         }
 
         if (FingerprintHalProperties::lockout().value_or(false)) {
             LOG(ERROR) << "Fail: lockout";
             cb->onLockoutPermanent();
             cb->onError(Error::HW_UNAVAILABLE, 0 /* vendorError */);
-            return;
+            return true;
         }
 
         if (shouldCancel(cancel)) {
             LOG(ERROR) << "Fail: cancel";
             cb->onError(Error::CANCELED, 0 /* vendorCode */);
-            return;
+            return true;
         }
 
         if (i < N) {
@@ -189,29 +253,23 @@
     if (id > 0 && isEnrolled) {
         cb->onAuthenticationSucceeded(id, {} /* hat */);
         mLockoutTracker.reset();
-        return;
+        return true;
     } else {
         LOG(ERROR) << "Fail: fingerprint not enrolled";
         cb->onAuthenticationFailed();
         mLockoutTracker.addFailedAttempt();
+        checkSensorLockout(cb);
+        return false;
     }
 }
 
-void FakeFingerprintEngine::detectInteractionImpl(ISessionCallback* cb,
-                                                  const std::future<void>& cancel) {
+bool FakeFingerprintEngine::onDetectInteractFingerDown(ISessionCallback* cb,
+                                                       const std::future<void>& cancel) {
     BEGIN_OP(getLatency(FingerprintHalProperties::operation_detect_interaction_latency()));
 
     int64_t duration =
             FingerprintHalProperties::operation_detect_interaction_duration().value_or(10);
 
-    auto detectInteractionSupported =
-            FingerprintHalProperties::detect_interaction().value_or(false);
-    if (!detectInteractionSupported) {
-        LOG(ERROR) << "Detect interaction is not supported";
-        cb->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorError */);
-        return;
-    }
-
     auto acquired = FingerprintHalProperties::operation_detect_interaction_acquired().value_or("1");
     auto acquiredInfos = parseIntSequence(acquired);
     int N = acquiredInfos.size();
@@ -220,7 +278,7 @@
     if (N == 0) {
         LOG(ERROR) << "Fail to parse detect interaction acquired info: " + acquired;
         cb->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorError */);
-        return;
+        return true;
     }
 
     int i = 0;
@@ -230,13 +288,13 @@
             LOG(ERROR) << "Fail: operation_detect_interaction_error";
             auto ec = convertError(err);
             cb->onError(ec.first, ec.second);
-            return;
+            return true;
         }
 
         if (shouldCancel(cancel)) {
             LOG(ERROR) << "Fail: cancel";
             cb->onError(Error::CANCELED, 0 /* vendorCode */);
-            return;
+            return true;
         }
 
         if (i < N) {
@@ -253,21 +311,18 @@
     if (id <= 0 || !isEnrolled) {
         LOG(ERROR) << "Fail: not enrolled";
         cb->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorError */);
-        return;
+        return true;
     }
 
     cb->onInteractionDetected();
+
+    return true;
 }
 
 void FakeFingerprintEngine::enumerateEnrollmentsImpl(ISessionCallback* cb) {
     BEGIN_OP(0);
 
     std::vector<int32_t> ids;
-    // There are some enrollment sync issue with framework, which results in
-    //  a single template removal during the very firt sync command after reboot.
-    //  This is a workaround for now. TODO(b/243129174)
-    ids.push_back(-1);
-
     for (auto& enrollment : FingerprintHalProperties::enrollments()) {
         auto id = enrollment.value_or(0);
         if (id > 0) {
@@ -330,6 +385,11 @@
         cb->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorError */);
         return;
     }
+    clearLockout(cb);
+    isLockoutTimerAborted = true;
+}
+
+void FakeFingerprintEngine::clearLockout(ISessionCallback* cb) {
     FingerprintHalProperties::lockout(false);
     cb->onLockoutCleared();
     mLockoutTracker.reset();
@@ -339,6 +399,7 @@
                                                             int32_t /*y*/, float /*minor*/,
                                                             float /*major*/) {
     BEGIN_OP(0);
+    fingerDownAction();
     return ndk::ScopedAStatus::ok();
 }
 
@@ -369,7 +430,8 @@
         if (dim.size() >= 4) {
             d = dim[3];
         }
-        if (isValidStr) out = {0, x, y, r, d};
+        if (isValidStr)
+            out = {.sensorLocationX = x, .sensorLocationY = y, .sensorRadius = r, .display = d};
 
         return isValidStr;
     }
@@ -385,8 +447,7 @@
 }
 
 SensorLocation FakeFingerprintEngine::defaultSensorLocation() {
-    return {0 /* displayId (not used) */, 0 /* sensorLocationX */, 0 /* sensorLocationY */,
-            0 /* sensorRadius */, "" /* display */};
+    return SensorLocation();
 }
 
 std::vector<int32_t> FakeFingerprintEngine::parseIntSequence(const std::string& str,
@@ -513,4 +574,39 @@
     return dist(mRandom);
 }
 
+bool FakeFingerprintEngine::checkSensorLockout(ISessionCallback* cb) {
+    FakeLockoutTracker::LockoutMode lockoutMode = mLockoutTracker.getMode();
+    if (lockoutMode == FakeLockoutTracker::LockoutMode::kPermanent) {
+        LOG(ERROR) << "Fail: lockout permanent";
+        cb->onLockoutPermanent();
+        isLockoutTimerAborted = true;
+        return true;
+    } else if (lockoutMode == FakeLockoutTracker::LockoutMode::kTimed) {
+        int64_t timeLeft = mLockoutTracker.getLockoutTimeLeft();
+        LOG(ERROR) << "Fail: lockout timed " << timeLeft;
+        cb->onLockoutTimed(timeLeft);
+        if (isLockoutTimerSupported && !isLockoutTimerStarted) startLockoutTimer(timeLeft, cb);
+        return true;
+    }
+    return false;
+}
+
+void FakeFingerprintEngine::startLockoutTimer(int64_t timeout, ISessionCallback* cb) {
+    BEGIN_OP(0);
+    std::function<void(ISessionCallback*)> action =
+            std::bind(&FakeFingerprintEngine::lockoutTimerExpired, this, std::placeholders::_1);
+    std::thread([timeout, action, cb]() {
+        std::this_thread::sleep_for(std::chrono::milliseconds(timeout));
+        action(cb);
+    }).detach();
+
+    isLockoutTimerStarted = true;
+}
+void FakeFingerprintEngine::lockoutTimerExpired(ISessionCallback* cb) {
+    if (!isLockoutTimerAborted) {
+        clearLockout(cb);
+    }
+    isLockoutTimerStarted = false;
+    isLockoutTimerAborted = false;
+}
 }  // namespace aidl::android::hardware::biometrics::fingerprint
diff --git a/biometrics/fingerprint/aidl/default/FakeFingerprintEngineSide.cpp b/biometrics/fingerprint/aidl/default/FakeFingerprintEngineSide.cpp
index 9f736e7..a78cdcd 100644
--- a/biometrics/fingerprint/aidl/default/FakeFingerprintEngineSide.cpp
+++ b/biometrics/fingerprint/aidl/default/FakeFingerprintEngineSide.cpp
@@ -27,11 +27,13 @@
 
 namespace aidl::android::hardware::biometrics::fingerprint {
 
-SensorLocation FakeFingerprintEngineSide::defaultSensorLocation() {
-    SensorLocation location;
+FakeFingerprintEngineSide::FakeFingerprintEngineSide() : FakeFingerprintEngine() {
+    isLockoutTimerSupported = true;
+}
 
-    return {0 /* displayId (not used) */, defaultSensorLocationX /* sensorLocationX */,
-            defaultSensorLocationY /* sensorLocationY */, defaultSensorRadius /* sensorRadius */,
-            "" /* display */};
+SensorLocation FakeFingerprintEngineSide::defaultSensorLocation() {
+    return SensorLocation{.sensorLocationX = defaultSensorLocationX,
+                          .sensorLocationY = defaultSensorLocationY,
+                          .sensorRadius = defaultSensorRadius};
 }
 }  // namespace aidl::android::hardware::biometrics::fingerprint
diff --git a/biometrics/fingerprint/aidl/default/FakeFingerprintEngineUdfps.cpp b/biometrics/fingerprint/aidl/default/FakeFingerprintEngineUdfps.cpp
index 3cdfc70..68b0f0d 100644
--- a/biometrics/fingerprint/aidl/default/FakeFingerprintEngineUdfps.cpp
+++ b/biometrics/fingerprint/aidl/default/FakeFingerprintEngineUdfps.cpp
@@ -31,12 +31,12 @@
 namespace aidl::android::hardware::biometrics::fingerprint {
 
 FakeFingerprintEngineUdfps::FakeFingerprintEngineUdfps()
-    : FakeFingerprintEngine(), mWorkMode(WorkMode::kIdle), mPointerDownTime(0), mUiReadyTime(0) {}
+    : FakeFingerprintEngine(), mPointerDownTime(0), mUiReadyTime(0) {}
 
 SensorLocation FakeFingerprintEngineUdfps::defaultSensorLocation() {
-    return {0 /* displayId (not used) */, defaultSensorLocationX /* sensorLocationX */,
-            defaultSensorLocationY /* sensorLocationY */, defaultSensorRadius /* sensorRadius */,
-            "" /* display */};
+    return SensorLocation{.sensorLocationX = defaultSensorLocationX,
+                          .sensorLocationY = defaultSensorLocationY,
+                          .sensorRadius = defaultSensorRadius};
 }
 
 ndk::ScopedAStatus FakeFingerprintEngineUdfps::onPointerDownImpl(int32_t /*pointerId*/,
@@ -70,68 +70,17 @@
 }
 
 void FakeFingerprintEngineUdfps::fingerDownAction() {
-    switch (mWorkMode) {
-        case WorkMode::kAuthenticate:
-            onAuthenticateFingerDown();
-            break;
-        case WorkMode::kEnroll:
-            onEnrollFingerDown();
-            break;
-        case WorkMode::kDetectInteract:
-            onDetectInteractFingerDown();
-            break;
-        default:
-            LOG(WARNING) << "unexpected call: onUiReady()";
-            break;
-    }
-
+    FakeFingerprintEngine::fingerDownAction();
     mUiReadyTime = 0;
     mPointerDownTime = 0;
 }
 
-void FakeFingerprintEngineUdfps::onAuthenticateFingerDown() {
-    FakeFingerprintEngine::authenticateImpl(mCb, mOperationId, mCancelVec[0]);
-}
-
-void FakeFingerprintEngineUdfps::onEnrollFingerDown() {
-    // Any use case to emulate display touch for each capture during enrollment?
-    FakeFingerprintEngine::enrollImpl(mCb, mHat, mCancelVec[0]);
-}
-
-void FakeFingerprintEngineUdfps::onDetectInteractFingerDown() {
-    FakeFingerprintEngine::detectInteractionImpl(mCb, mCancelVec[0]);
-}
-
-void FakeFingerprintEngineUdfps::enrollImpl(ISessionCallback* cb,
-                                            const keymaster::HardwareAuthToken& hat,
-                                            const std::future<void>& cancel) {
-    updateContext(WorkMode::kEnroll, cb, const_cast<std::future<void>&>(cancel), 0, hat);
-}
-
-void FakeFingerprintEngineUdfps::authenticateImpl(ISessionCallback* cb, int64_t operationId,
-                                                  const std::future<void>& cancel) {
-    updateContext(WorkMode::kAuthenticate, cb, const_cast<std::future<void>&>(cancel), operationId,
-                  keymaster::HardwareAuthToken());
-}
-
-void FakeFingerprintEngineUdfps::detectInteractionImpl(ISessionCallback* cb,
-                                                       const std::future<void>& cancel) {
-    updateContext(WorkMode::kDetectInteract, cb, const_cast<std::future<void>&>(cancel), 0,
-                  keymaster::HardwareAuthToken());
-}
-
 void FakeFingerprintEngineUdfps::updateContext(WorkMode mode, ISessionCallback* cb,
                                                std::future<void>& cancel, int64_t operationId,
                                                const keymaster::HardwareAuthToken& hat) {
+    FakeFingerprintEngine::updateContext(mode, cb, cancel, operationId, hat);
     mPointerDownTime = 0;
     mUiReadyTime = 0;
-    mCancelVec.clear();
-
-    mCancelVec.push_back(std::move(cancel));
-    mWorkMode = mode;
-    mCb = cb;
-    mOperationId = operationId;
-    mHat = hat;
 }
 
 }  // namespace aidl::android::hardware::biometrics::fingerprint
diff --git a/biometrics/fingerprint/aidl/default/FakeLockoutTracker.cpp b/biometrics/fingerprint/aidl/default/FakeLockoutTracker.cpp
index 5996406..b0163ee 100644
--- a/biometrics/fingerprint/aidl/default/FakeLockoutTracker.cpp
+++ b/biometrics/fingerprint/aidl/default/FakeLockoutTracker.cpp
@@ -67,9 +67,13 @@
     int64_t res = 0;
 
     if (mLockoutTimedStart > 0) {
+        int32_t lockoutTimedDuration =
+                FingerprintHalProperties::lockout_timed_duration().value_or(10 * 100);
         auto now = Util::getSystemNanoTime();
-        auto left = now - mLockoutTimedStart;
-        res = (left > 0) ? (left / 1000000LL) : 0;
+        auto elapsed = (now - mLockoutTimedStart) / 1000000LL;
+        res = lockoutTimedDuration - elapsed;
+        LOG(INFO) << "xxxxxx: elapsed=" << elapsed << " now = " << now
+                  << " mLockoutTimedStart=" << mLockoutTimedStart << " res=" << res;
     }
 
     return res;
diff --git a/biometrics/fingerprint/aidl/default/Fingerprint.cpp b/biometrics/fingerprint/aidl/default/Fingerprint.cpp
index f00a49d..79b563e 100644
--- a/biometrics/fingerprint/aidl/default/Fingerprint.cpp
+++ b/biometrics/fingerprint/aidl/default/Fingerprint.cpp
@@ -17,6 +17,7 @@
 #include "Fingerprint.h"
 #include "Session.h"
 
+#include <android-base/properties.h>
 #include <fingerprint.sysprop.h>
 
 #include <android-base/file.h>
@@ -59,6 +60,7 @@
                              << sensorTypeProp;
     }
     LOG(INFO) << "sensorTypeProp:" << sensorTypeProp;
+    LOG(INFO) << "ro.product.name=" << ::android::base::GetProperty("ro.product.name", "UNKNOWN");
 }
 
 ndk::ScopedAStatus Fingerprint::getSensorProps(std::vector<SensorProps>* out) {
@@ -105,16 +107,16 @@
 
     mSession->linkToDeath(cb->asBinder().get());
 
-    LOG(INFO) << "createSession: sensorId:" << sensorId << " userId:" << userId;
+    LOG(INFO) << __func__ << ": sensorId:" << sensorId << " userId:" << userId;
     return ndk::ScopedAStatus::ok();
 }
 
 binder_status_t Fingerprint::dump(int fd, const char** /*args*/, uint32_t numArgs) {
     if (fd < 0) {
-        LOG(ERROR) << "Fingerprint::dump fd invalid: " << fd;
+        LOG(ERROR) << __func__ << "fd invalid: " << fd;
         return STATUS_BAD_VALUE;
     } else {
-        LOG(INFO) << "Fingerprint::dump fd:" << fd << "numArgs:" << numArgs;
+        LOG(INFO) << __func__ << " fd:" << fd << "numArgs:" << numArgs;
     }
 
     dprintf(fd, "----- FingerprintVirtualHal::dump -----\n");
@@ -131,11 +133,11 @@
 
 binder_status_t Fingerprint::handleShellCommand(int in, int out, int err, const char** args,
                                                 uint32_t numArgs) {
-    LOG(INFO) << "Fingerprint::handleShellCommand in:" << in << " out:" << out << " err:" << err
+    LOG(INFO) << __func__ << " in:" << in << " out:" << out << " err:" << err
               << " numArgs:" << numArgs;
 
     if (numArgs == 0) {
-        LOG(INFO) << "Fingerprint::handleShellCommand: available commands";
+        LOG(INFO) << __func__ << ": available commands";
         onHelp(out);
         return STATUS_OK;
     }
@@ -163,7 +165,7 @@
 }
 
 void Fingerprint::resetConfigToDefault() {
-    LOG(INFO) << "reset virtual HAL configuration to default";
+    LOG(INFO) << __func__ << ": reset virtual HAL configuration to default";
 #define RESET_CONFIG_O(__NAME__) \
     if (FingerprintHalProperties::__NAME__()) FingerprintHalProperties::__NAME__(std::nullopt)
 #define RESET_CONFIG_V(__NAME__)                       \
diff --git a/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngine.h b/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngine.h
index 1279cd9..2450115 100644
--- a/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngine.h
+++ b/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngine.h
@@ -38,7 +38,7 @@
 // A fake engine that is backed by system properties instead of hardware.
 class FakeFingerprintEngine {
   public:
-    FakeFingerprintEngine() : mRandom(std::mt19937::default_seed) {}
+    FakeFingerprintEngine();
     virtual ~FakeFingerprintEngine() {}
 
     void generateChallengeImpl(ISessionCallback* cb);
@@ -66,6 +66,8 @@
 
     virtual SensorLocation defaultSensorLocation();
 
+    virtual void fingerDownAction();
+
     std::vector<int32_t> parseIntSequence(const std::string& str, const std::string& sep = ",");
 
     std::vector<std::vector<int32_t>> parseEnrollmentCapture(const std::string& str);
@@ -74,15 +76,35 @@
 
     std::mt19937 mRandom;
 
+    enum class WorkMode : int8_t { kIdle = 0, kAuthenticate, kEnroll, kDetectInteract };
+
+    WorkMode getWorkMode() { return mWorkMode; }
+
     virtual std::string toString() const {
         std::ostringstream os;
         os << "----- FakeFingerprintEngine:: -----" << std::endl;
+        os << "mWorkMode:" << (int)mWorkMode;
         os << "acquiredVendorInfoBase:" << FINGERPRINT_ACQUIRED_VENDOR_BASE;
         os << ", errorVendorBase:" << FINGERPRINT_ERROR_VENDOR_BASE << std::endl;
         os << mLockoutTracker.toString();
         return os.str();
     }
 
+  protected:
+    virtual void updateContext(WorkMode mode, ISessionCallback* cb, std::future<void>& cancel,
+                               int64_t operationId, const keymaster::HardwareAuthToken& hat);
+
+    bool onEnrollFingerDown(ISessionCallback* cb, const keymaster::HardwareAuthToken& hat,
+                            const std::future<void>& cancel);
+    bool onAuthenticateFingerDown(ISessionCallback* cb, int64_t, const std::future<void>& cancel);
+    bool onDetectInteractFingerDown(ISessionCallback* cb, const std::future<void>& cancel);
+
+    WorkMode mWorkMode;
+    ISessionCallback* mCb;
+    keymaster::HardwareAuthToken mHat;
+    std::future<void> mCancel;
+    int64_t mOperationId;
+
   private:
     static constexpr int32_t FINGERPRINT_ACQUIRED_VENDOR_BASE = 1000;
     static constexpr int32_t FINGERPRINT_ERROR_VENDOR_BASE = 1000;
@@ -91,8 +113,21 @@
     bool parseEnrollmentCaptureSingle(const std::string& str,
                                       std::vector<std::vector<int32_t>>& res);
     int32_t getRandomInRange(int32_t bound1, int32_t bound2);
+    bool checkSensorLockout(ISessionCallback*);
+    void clearLockout(ISessionCallback* cb);
 
     FakeLockoutTracker mLockoutTracker;
+
+  protected:
+    // lockout timer
+    void lockoutTimerExpired(ISessionCallback* cb);
+    bool isLockoutTimerSupported;
+    bool isLockoutTimerStarted;
+    bool isLockoutTimerAborted;
+
+  public:
+    void startLockoutTimer(int64_t timeout, ISessionCallback* cb);
+    bool getLockoutTimerStarted() { return isLockoutTimerStarted; }
 };
 
 }  // namespace aidl::android::hardware::biometrics::fingerprint
diff --git a/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngineSide.h b/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngineSide.h
index c2fc005..67a3ebc 100644
--- a/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngineSide.h
+++ b/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngineSide.h
@@ -28,7 +28,7 @@
     static constexpr int32_t defaultSensorLocationY = 600;
     static constexpr int32_t defaultSensorRadius = 150;
 
-    FakeFingerprintEngineSide() : FakeFingerprintEngine() {}
+    FakeFingerprintEngineSide();
     ~FakeFingerprintEngineSide() {}
 
     virtual SensorLocation defaultSensorLocation() override;
diff --git a/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngineUdfps.h b/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngineUdfps.h
index c5e93e7..2270eca 100644
--- a/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngineUdfps.h
+++ b/biometrics/fingerprint/aidl/default/include/FakeFingerprintEngineUdfps.h
@@ -42,39 +42,20 @@
 
     SensorLocation defaultSensorLocation() override;
 
-    void enrollImpl(ISessionCallback* cb, const keymaster::HardwareAuthToken& hat,
-                    const std::future<void>& cancel);
-    void authenticateImpl(ISessionCallback* cb, int64_t operationId,
-                          const std::future<void>& cancel);
-    void detectInteractionImpl(ISessionCallback* cb, const std::future<void>& cancel);
-
-    enum class WorkMode : int8_t { kIdle = 0, kAuthenticate, kEnroll, kDetectInteract };
-
-    WorkMode getWorkMode() { return mWorkMode; }
+    void updateContext(WorkMode mode, ISessionCallback* cb, std::future<void>& cancel,
+                       int64_t operationId, const keymaster::HardwareAuthToken& hat);
+    void fingerDownAction();
 
     std::string toString() const {
         std::ostringstream os;
         os << FakeFingerprintEngine::toString();
         os << "----- FakeFingerprintEngineUdfps -----" << std::endl;
-        os << "mWorkMode:" << (int)mWorkMode;
         os << ", mUiReadyTime:" << mUiReadyTime;
         os << ", mPointerDownTime:" << mPointerDownTime << std::endl;
         return os.str();
     }
 
   private:
-    void onAuthenticateFingerDown();
-    void onEnrollFingerDown();
-    void onDetectInteractFingerDown();
-    void fingerDownAction();
-    void updateContext(WorkMode mode, ISessionCallback* cb, std::future<void>& cancel,
-                       int64_t operationId, const keymaster::HardwareAuthToken& hat);
-
-    WorkMode mWorkMode;
-    ISessionCallback* mCb;
-    keymaster::HardwareAuthToken mHat;
-    std::vector<std::future<void>> mCancelVec;
-    int64_t mOperationId;
     int64_t mPointerDownTime;
     int64_t mUiReadyTime;
 };
diff --git a/biometrics/fingerprint/aidl/default/include/Fingerprint.h b/biometrics/fingerprint/aidl/default/include/Fingerprint.h
index fc4fb8d..2bd66d4 100644
--- a/biometrics/fingerprint/aidl/default/include/Fingerprint.h
+++ b/biometrics/fingerprint/aidl/default/include/Fingerprint.h
@@ -43,6 +43,7 @@
   private:
     void resetConfigToDefault();
     void onHelp(int);
+    void onSimFingerDown();
 
     std::unique_ptr<FakeFingerprintEngine> mEngine;
     WorkerThread mWorker;
diff --git a/biometrics/fingerprint/aidl/default/tests/FakeFingerprintEngineTest.cpp b/biometrics/fingerprint/aidl/default/tests/FakeFingerprintEngineTest.cpp
index a200b39..fe405f4 100644
--- a/biometrics/fingerprint/aidl/default/tests/FakeFingerprintEngineTest.cpp
+++ b/biometrics/fingerprint/aidl/default/tests/FakeFingerprintEngineTest.cpp
@@ -93,9 +93,13 @@
         return ndk::ScopedAStatus::ok();
     };
     ndk::ScopedAStatus onLockoutTimed(int64_t /* timeout */) override {
+        mLockoutTimed = true;
         return ndk::ScopedAStatus::ok();
     }
-    ndk::ScopedAStatus onLockoutCleared() override { return ndk::ScopedAStatus::ok(); }
+    ndk::ScopedAStatus onLockoutCleared() override {
+        mLockoutCleared = true;
+        return ndk::ScopedAStatus::ok();
+    }
     ndk::ScopedAStatus onSessionClosed() override { return ndk::ScopedAStatus::ok(); }
 
     Error mError = Error::UNKNOWN;
@@ -110,6 +114,8 @@
     bool mAuthenticateFailed = false;
     bool mAuthenticatorIdInvalidated = false;
     bool mLockoutPermanent = false;
+    bool mLockoutTimed = false;
+    bool mLockoutCleared = false;
     int mInteractionDetectedCount = 0;
     int32_t mLastAcquiredInfo = -1;
     int32_t mLastAcquiredVendorCode = -1;
@@ -132,6 +138,8 @@
         FingerprintHalProperties::operation_enroll_latency({});
         FingerprintHalProperties::operation_authenticate_latency({});
         FingerprintHalProperties::operation_detect_interaction_latency({});
+        FingerprintHalProperties::operation_authenticate_fails(false);
+        FingerprintHalProperties::operation_detect_interaction_latency({});
     }
 
     FakeFingerprintEngine mEngine;
@@ -178,11 +186,14 @@
     FingerprintHalProperties::next_enrollment("4:0,0:true");
     keymaster::HardwareAuthToken hat{.mac = {2, 4}};
     mEngine.enrollImpl(mCallback.get(), hat, mCancel.get_future());
+    ASSERT_EQ(mEngine.getWorkMode(), FakeFingerprintEngine::WorkMode::kEnroll);
+    mEngine.fingerDownAction();
     ASSERT_FALSE(FingerprintHalProperties::next_enrollment().has_value());
     ASSERT_EQ(1, FingerprintHalProperties::enrollments().size());
     ASSERT_EQ(4, FingerprintHalProperties::enrollments()[0].value());
     ASSERT_EQ(4, mCallback->mLastEnrolled);
     ASSERT_EQ(1, mCallback->mLastAcquiredInfo);
+    ASSERT_EQ(mEngine.getWorkMode(), FakeFingerprintEngine::WorkMode::kIdle);
 }
 
 TEST_F(FakeFingerprintEngineTest, EnrollCancel) {
@@ -192,6 +203,7 @@
     keymaster::HardwareAuthToken hat{.mac = {2, 4}};
     mCancel.set_value();
     mEngine.enrollImpl(mCallback.get(), hat, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(Error::CANCELED, mCallback->mError);
     ASSERT_EQ(-1, mCallback->mLastEnrolled);
     ASSERT_EQ(0, FingerprintHalProperties::enrollments().size());
@@ -204,6 +216,7 @@
     FingerprintHalProperties::next_enrollment(next);
     keymaster::HardwareAuthToken hat{.mac = {2, 4}};
     mEngine.enrollImpl(mCallback.get(), hat, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(Error::UNABLE_TO_PROCESS, mCallback->mError);
     ASSERT_EQ(-1, mCallback->mLastEnrolled);
     ASSERT_EQ(0, FingerprintHalProperties::enrollments().size());
@@ -216,6 +229,7 @@
     keymaster::HardwareAuthToken hat{.mac = {2, 4}};
     int32_t prevCnt = mCallback->mLastAcquiredCount;
     mEngine.enrollImpl(mCallback.get(), hat, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_FALSE(FingerprintHalProperties::next_enrollment().has_value());
     ASSERT_EQ(1, FingerprintHalProperties::enrollments().size());
     ASSERT_EQ(4, FingerprintHalProperties::enrollments()[0].value());
@@ -229,9 +243,12 @@
     FingerprintHalProperties::enrollments({1, 2});
     FingerprintHalProperties::enrollment_hit(2);
     mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    ASSERT_EQ(mEngine.getWorkMode(), FakeFingerprintEngine::WorkMode::kAuthenticate);
+    mEngine.fingerDownAction();
     ASSERT_FALSE(mCallback->mAuthenticateFailed);
     ASSERT_EQ(2, mCallback->mLastAuthenticated);
     ASSERT_EQ(1, mCallback->mLastAcquiredInfo);
+    ASSERT_EQ(mEngine.getWorkMode(), FakeFingerprintEngine::WorkMode::kIdle);
 }
 
 TEST_F(FakeFingerprintEngineTest, AuthenticateCancel) {
@@ -239,6 +256,7 @@
     FingerprintHalProperties::enrollment_hit(2);
     mCancel.set_value();
     mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(Error::CANCELED, mCallback->mError);
     ASSERT_EQ(-1, mCallback->mLastAuthenticated);
 }
@@ -247,6 +265,7 @@
     FingerprintHalProperties::enrollments({1, 2});
     FingerprintHalProperties::enrollment_hit({});
     mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_TRUE(mCallback->mAuthenticateFailed);
 }
 
@@ -254,7 +273,9 @@
     FingerprintHalProperties::enrollments({1, 2});
     FingerprintHalProperties::enrollment_hit(3);
     mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_TRUE(mCallback->mAuthenticateFailed);
+    ASSERT_EQ(mEngine.getWorkMode(), FakeFingerprintEngine::WorkMode::kAuthenticate);
 }
 
 TEST_F(FakeFingerprintEngineTest, AuthenticateLockout) {
@@ -262,6 +283,7 @@
     FingerprintHalProperties::enrollment_hit(2);
     FingerprintHalProperties::lockout(true);
     mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_TRUE(mCallback->mLockoutPermanent);
     ASSERT_NE(mCallback->mError, Error::UNKNOWN);
 }
@@ -269,6 +291,7 @@
 TEST_F(FakeFingerprintEngineTest, AuthenticateError8) {
     FingerprintHalProperties::operation_authenticate_error(8);
     mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(mCallback->mError, (Error)8);
     ASSERT_EQ(mCallback->mErrorVendorCode, 0);
 }
@@ -276,10 +299,19 @@
 TEST_F(FakeFingerprintEngineTest, AuthenticateError9) {
     FingerprintHalProperties::operation_authenticate_error(1009);
     mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(mCallback->mError, (Error)7);
     ASSERT_EQ(mCallback->mErrorVendorCode, 9);
 }
 
+TEST_F(FakeFingerprintEngineTest, AuthenticateFails) {
+    FingerprintHalProperties::operation_authenticate_fails(true);
+    mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    mEngine.fingerDownAction();
+    ASSERT_TRUE(mCallback->mAuthenticateFailed);
+    ASSERT_EQ(mEngine.getWorkMode(), FakeFingerprintEngine::WorkMode::kAuthenticate);
+}
+
 TEST_F(FakeFingerprintEngineTest, AuthenticateAcquired) {
     FingerprintHalProperties::lockout(false);
     FingerprintHalProperties::enrollments({1, 2});
@@ -287,6 +319,7 @@
     FingerprintHalProperties::operation_authenticate_acquired("4,1009");
     int32_t prevCount = mCallback->mLastAcquiredCount;
     mEngine.authenticateImpl(mCallback.get(), 0, mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_FALSE(mCallback->mAuthenticateFailed);
     ASSERT_EQ(2, mCallback->mLastAuthenticated);
     ASSERT_EQ(prevCount + 2, mCallback->mLastAcquiredCount);
@@ -300,8 +333,11 @@
     FingerprintHalProperties::enrollment_hit(2);
     FingerprintHalProperties::operation_detect_interaction_acquired("");
     mEngine.detectInteractionImpl(mCallback.get(), mCancel.get_future());
+    ASSERT_EQ(mEngine.getWorkMode(), FakeFingerprintEngine::WorkMode::kDetectInteract);
+    mEngine.fingerDownAction();
     ASSERT_EQ(1, mCallback->mInteractionDetectedCount);
     ASSERT_EQ(1, mCallback->mLastAcquiredInfo);
+    ASSERT_EQ(mEngine.getWorkMode(), FakeFingerprintEngine::WorkMode::kIdle);
 }
 
 TEST_F(FakeFingerprintEngineTest, InteractionDetectCancel) {
@@ -310,6 +346,7 @@
     FingerprintHalProperties::enrollment_hit(2);
     mCancel.set_value();
     mEngine.detectInteractionImpl(mCallback.get(), mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(Error::CANCELED, mCallback->mError);
     ASSERT_EQ(0, mCallback->mInteractionDetectedCount);
 }
@@ -319,6 +356,7 @@
     FingerprintHalProperties::enrollments({1, 2});
     FingerprintHalProperties::enrollment_hit({});
     mEngine.detectInteractionImpl(mCallback.get(), mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(0, mCallback->mInteractionDetectedCount);
 }
 
@@ -326,6 +364,7 @@
     FingerprintHalProperties::enrollments({1, 2});
     FingerprintHalProperties::enrollment_hit(25);
     mEngine.detectInteractionImpl(mCallback.get(), mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(0, mCallback->mInteractionDetectedCount);
 }
 
@@ -333,6 +372,7 @@
     FingerprintHalProperties::detect_interaction(true);
     FingerprintHalProperties::operation_detect_interaction_error(8);
     mEngine.detectInteractionImpl(mCallback.get(), mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(0, mCallback->mInteractionDetectedCount);
     ASSERT_EQ(mCallback->mError, (Error)8);
     ASSERT_EQ(mCallback->mErrorVendorCode, 0);
@@ -345,6 +385,7 @@
     FingerprintHalProperties::operation_detect_interaction_acquired("4,1013");
     int32_t prevCount = mCallback->mLastAcquiredCount;
     mEngine.detectInteractionImpl(mCallback.get(), mCancel.get_future());
+    mEngine.fingerDownAction();
     ASSERT_EQ(1, mCallback->mInteractionDetectedCount);
     ASSERT_EQ(prevCount + 2, mCallback->mLastAcquiredCount);
     ASSERT_EQ(7, mCallback->mLastAcquiredInfo);
@@ -354,9 +395,7 @@
 TEST_F(FakeFingerprintEngineTest, EnumerateEnrolled) {
     FingerprintHalProperties::enrollments({2, 4, 8});
     mEngine.enumerateEnrollmentsImpl(mCallback.get());
-    ASSERT_EQ(
-            4,
-            mCallback->mLastEnrollmentEnumerated.size());  // Due to workaround. TODO (b/243129174)
+    ASSERT_EQ(3, mCallback->mLastEnrollmentEnumerated.size());
     for (auto id : FingerprintHalProperties::enrollments()) {
         ASSERT_TRUE(std::find(mCallback->mLastEnrollmentEnumerated.begin(),
                               mCallback->mLastEnrollmentEnumerated.end(),
@@ -464,9 +503,15 @@
                 FingerprintHalProperties::operation_detect_interaction_latency()));
     }
     ASSERT_TRUE(latencySet.size() > 95);
-    FingerprintHalProperties::operation_detect_interaction_latency({});
 }
 
+TEST_F(FakeFingerprintEngineTest, lockoutTimer) {
+    mEngine.startLockoutTimer(200, mCallback.get());
+    ASSERT_TRUE(mEngine.getLockoutTimerStarted());
+    std::this_thread::sleep_for(std::chrono::milliseconds(210));
+    ASSERT_FALSE(mEngine.getLockoutTimerStarted());
+    ASSERT_TRUE(mCallback->mLockoutCleared);
+}
 }  // namespace aidl::android::hardware::biometrics::fingerprint
 
 int main(int argc, char** argv) {
diff --git a/biometrics/fingerprint/aidl/default/tests/FakeLockoutTrackerTest.cpp b/biometrics/fingerprint/aidl/default/tests/FakeLockoutTrackerTest.cpp
index 1b071ee..93c6f84 100644
--- a/biometrics/fingerprint/aidl/default/tests/FakeLockoutTrackerTest.cpp
+++ b/biometrics/fingerprint/aidl/default/tests/FakeLockoutTrackerTest.cpp
@@ -65,11 +65,11 @@
     ASSERT_EQ(mLockoutTracker.getMode(), FakeLockoutTracker::LockoutMode::kTimed);
     // time left
     int N = 5;
-    int64_t prevTimeLeft = INT_MIN;
+    int64_t prevTimeLeft = INT_MAX;
     for (int i = 0; i < N; i++) {
         SLEEP_MS(LOCKOUT_TIMED_DURATION / N + 1);
         int64_t currTimeLeft = mLockoutTracker.getLockoutTimeLeft();
-        ASSERT_TRUE(currTimeLeft > prevTimeLeft);
+        ASSERT_TRUE(currTimeLeft < prevTimeLeft);
         prevTimeLeft = currTimeLeft;
     }
     ASSERT_EQ(mLockoutTracker.getMode(), FakeLockoutTracker::LockoutMode::kNone);
diff --git a/bluetooth/aidl/default/net_bluetooth_mgmt.cpp b/bluetooth/aidl/default/net_bluetooth_mgmt.cpp
index 937cd57..0699781 100644
--- a/bluetooth/aidl/default/net_bluetooth_mgmt.cpp
+++ b/bluetooth/aidl/default/net_bluetooth_mgmt.cpp
@@ -162,9 +162,9 @@
           (struct mgmt_ev_read_index_list*)ev.data;
 
       for (int i = 0; i < data->num_controllers; i++) {
-        if (data->index[i] == hci_interface) {
-          ALOGI("hci interface %d found", hci_interface);
-          ret = 0;
+        if (data->index[i] >= hci_interface) {
+          ALOGI("hci interface %d found", data->index[i]);
+          ret = data->index[i];
           goto end;
         }
       }
@@ -253,8 +253,9 @@
   rfkill(1);
 
   // Wait for the HCI interface to complete initialization or to come online.
-  if (waitHciDev(hci_interface)) {
-    ALOGE("hci interface %d not found", hci_interface);
+  hci_interface = waitHciDev(hci_interface);
+  if (hci_interface < 0) {
+    ALOGE("hci interface not found");
     return -1;
   }
 
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpConfiguration.aidl
new file mode 100644
index 0000000..9e67b15
--- /dev/null
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpConfiguration.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@VintfStability
+parcelable A2dpConfiguration {
+  int remoteSeid;
+  android.hardware.bluetooth.audio.CodecId id;
+  android.hardware.bluetooth.audio.CodecParameters parameters;
+  byte[] configuration;
+}
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpConfigurationHint.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpConfigurationHint.aidl
new file mode 100644
index 0000000..0a5b489
--- /dev/null
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpConfigurationHint.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@VintfStability
+parcelable A2dpConfigurationHint {
+  byte[6] bdAddr;
+  android.hardware.bluetooth.audio.AudioContext audioContext;
+  @nullable android.hardware.bluetooth.audio.CodecId codecId;
+  @nullable android.hardware.bluetooth.audio.CodecParameters codecParameters;
+}
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpRemoteCapabilities.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpRemoteCapabilities.aidl
new file mode 100644
index 0000000..9c1e971
--- /dev/null
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpRemoteCapabilities.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@VintfStability
+parcelable A2dpRemoteCapabilities {
+  int seid;
+  android.hardware.bluetooth.audio.CodecId id;
+  byte[] capabilities;
+}
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpStatus.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpStatus.aidl
new file mode 100644
index 0000000..ac22e25
--- /dev/null
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpStatus.aidl
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@Backing(type="byte") @VintfStability
+enum A2dpStatus {
+  OK = 0,
+  BAD_LENGTH = 0x11u8,
+  BAD_PAYLOAD_FORMAT = 0x18u8,
+  INVALID_CODEC_TYPE = 0xC1u8,
+  NOT_SUPPORTED_CODEC_TYPE = 0xC2u8,
+  INVALID_SAMPLING_FREQUENCY = 0xC3u8,
+  NOT_SUPPORTED_SAMPLING_FREQUENCY = 0xC4u8,
+  INVALID_CHANNEL_MODE = 0xC5u8,
+  NOT_SUPPORTED_CHANNEL_MODE = 0xC6u8,
+  INVALID_SUBBANDS = 0xC7u8,
+  NOT_SUPPORTED_SUBBANDS = 0xC8u8,
+  INVALID_ALLOCATION_METHOD = 0xC9u8,
+  NOT_SUPPORTED_ALLOCATION_METHOD = 0xCAu8,
+  INVALID_MINIMUM_BITPOOL_VALUE = 0xCBu8,
+  NOT_SUPPORTED_MINIMUM_BITPOOL_VALUE = 0xCCu8,
+  INVALID_MAXIMUM_BITPOOL_VALUE = 0xCDu8,
+  NOT_SUPPORTED_MAXIMUM_BITPOOL_VALUE = 0xCEu8,
+  NOT_SUPPORTED_VBR = 0xD3u8,
+  NOT_SUPPORTED_BIT_RATE = 0xD5u8,
+  INVALID_OBJECT_TYPE = 0xD6u8,
+  NOT_SUPPORTED_OBJECT_TYPE = 0xD7u8,
+  INVALID_CHANNELS = 0xD8u8,
+  NOT_SUPPORTED_CHANNELS = 0xD9u8,
+  INVALID_BLOCK_LENGTH = 0xDDu8,
+  INVALID_CODEC_PARAMETER = 0xE2u8,
+  NOT_SUPPORTED_CODEC_PARAMETER = 0xE3u8,
+  INVALID_DRC = 0xE4u8,
+  NOT_SUPPORTED_DRC = 0xE5u8,
+}
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpStreamConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpStreamConfiguration.aidl
new file mode 100644
index 0000000..ff5a1bc
--- /dev/null
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/A2dpStreamConfiguration.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@VintfStability
+parcelable A2dpStreamConfiguration {
+  int peerMtu;
+  @nullable byte[1] cpHeaderScmst;
+  android.hardware.bluetooth.audio.CodecId codecId;
+  byte[] configuration;
+}
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AudioConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AudioConfiguration.aidl
index 3abfb31..2c40267 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AudioConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AudioConfiguration.aidl
@@ -38,4 +38,6 @@
   android.hardware.bluetooth.audio.CodecConfiguration a2dpConfig;
   android.hardware.bluetooth.audio.LeAudioConfiguration leAudioConfig;
   android.hardware.bluetooth.audio.LeAudioBroadcastConfiguration leAudioBroadcastConfig;
+  android.hardware.bluetooth.audio.HfpConfiguration hfpConfig;
+  android.hardware.bluetooth.audio.A2dpStreamConfiguration a2dp;
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecParameters.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecParameters.aidl
new file mode 100644
index 0000000..60cf82a
--- /dev/null
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecParameters.aidl
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@VintfStability
+parcelable CodecParameters {
+  android.hardware.bluetooth.audio.ChannelMode channelMode;
+  int samplingFrequencyHz;
+  int bitdepth;
+  int minBitrate;
+  int maxBitrate;
+  boolean lowLatency;
+  boolean lossless;
+  byte[] vendorSpecificParameters;
+}
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/HfpConfiguration.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/HfpConfiguration.aidl
new file mode 100644
index 0000000..490a05d
--- /dev/null
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/HfpConfiguration.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@VintfStability
+parcelable HfpConfiguration {
+  android.hardware.bluetooth.audio.CodecId codecId;
+  int connectionHandle;
+  boolean nrec;
+  boolean controllerCodec;
+}
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
index 267af0f..ccf5524 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
@@ -40,4 +40,6 @@
   void streamSuspended(in android.hardware.bluetooth.audio.BluetoothAudioStatus status);
   void updateAudioConfiguration(in android.hardware.bluetooth.audio.AudioConfiguration audioConfig);
   void setLowLatencyModeAllowed(in boolean allowed);
+  android.hardware.bluetooth.audio.A2dpStatus parseA2dpConfiguration(in android.hardware.bluetooth.audio.CodecId codecId, in byte[] configuration, out android.hardware.bluetooth.audio.CodecParameters codecParameters);
+  @nullable android.hardware.bluetooth.audio.A2dpConfiguration getA2dpConfiguration(in List<android.hardware.bluetooth.audio.A2dpRemoteCapabilities> remoteA2dpCapabilities, in android.hardware.bluetooth.audio.A2dpConfigurationHint hint);
 }
diff --git a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/SessionType.aidl b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/SessionType.aidl
index 4b2c10f..71cca53 100644
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/SessionType.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/SessionType.aidl
@@ -46,4 +46,7 @@
   LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
   A2DP_SOFTWARE_DECODING_DATAPATH,
   A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+  HFP_SOFTWARE_ENCODING_DATAPATH,
+  HFP_SOFTWARE_DECODING_DATAPATH,
+  HFP_HARDWARE_OFFLOAD_DATAPATH,
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpConfiguration.aidl
new file mode 100644
index 0000000..a7fd9ff
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpConfiguration.aidl
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+import android.hardware.bluetooth.audio.CodecId;
+import android.hardware.bluetooth.audio.CodecParameters;
+
+/**
+ * A2DP Service Configuration
+ */
+@VintfStability
+parcelable A2dpConfiguration {
+    /**
+     * Remote Stream Endpoint Identifier
+     */
+    int remoteSeid;
+
+    /**
+     * Codec Selection and configuration, in a generic way with `parameters`
+     * and as defined by A2DP for codec interoperability requirements, with
+     * `configuration`. Using `id.a2dp`, the format is given by the `Codec
+     * Specific Information Elements` [A2DP - 4.3-6.2], and using `id.vendor`,
+     * by `Vendor Specific Value` [A2DP - 4.7.2].
+     * In any case, this byte array is limited by the framework to 128 Bytes.
+     */
+    CodecId id;
+    CodecParameters parameters;
+    byte[] configuration;
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpConfigurationHint.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpConfigurationHint.aidl
new file mode 100644
index 0000000..f707a8a
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpConfigurationHint.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+import android.hardware.bluetooth.audio.AudioContext;
+import android.hardware.bluetooth.audio.CodecId;
+import android.hardware.bluetooth.audio.CodecParameters;
+
+/**
+ * A2DP Configuration Hints
+ */
+@VintfStability
+parcelable A2dpConfigurationHint {
+    /**
+     * Bluetooth Device Address, intended to be used for interoperabilities.
+     */
+    byte[6] bdAddr;
+
+    /**
+     * Audio configuration hints:
+     * - The starting audio context of the session
+     * - An optional preference of codec and / or parameters
+     */
+
+    AudioContext audioContext;
+    @nullable CodecId codecId;
+    @nullable CodecParameters codecParameters;
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpRemoteCapabilities.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpRemoteCapabilities.aidl
new file mode 100644
index 0000000..87277f1
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpRemoteCapabilities.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+import android.hardware.bluetooth.audio.CodecId;
+
+/**
+ * A2DP Remote Capabilites
+ */
+@VintfStability
+parcelable A2dpRemoteCapabilities {
+    /**
+     * Remote Stream Endpoint identifier
+     */
+    int seid;
+
+    /**
+     * Codec Identifier and `capabilities` as defined by A2DP for codec
+     * interoperability requirements. Using `id.a2dp`, the format is given
+     * by the `Codec Specific Information Elements` [A2DP - 4.3-6.2], and
+     * using `id.vendor`, by `Vendor Specific Value` [A2DP - 4.7.2].
+     */
+    CodecId id;
+    byte[] capabilities;
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpStatus.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpStatus.aidl
new file mode 100644
index 0000000..8eba3c9
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpStatus.aidl
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+@VintfStability
+@Backing(type="byte")
+enum A2dpStatus {
+
+    OK = 0,
+
+    /**
+     * Error codes defined by AVDTP [AVDTP - 8.20.6.2]
+     */
+
+    BAD_LENGTH = 0x11u8,
+    BAD_PAYLOAD_FORMAT = 0x18u8,
+
+    /**
+     * Error codecs defined by A2DP for AVDTP Interoperability [A2DP - 5.1.3]
+     */
+
+    INVALID_CODEC_TYPE = 0xC1u8,
+    NOT_SUPPORTED_CODEC_TYPE = 0xC2u8,
+    INVALID_SAMPLING_FREQUENCY = 0xC3u8,
+    NOT_SUPPORTED_SAMPLING_FREQUENCY = 0xC4u8,
+    INVALID_CHANNEL_MODE = 0xC5u8,
+    NOT_SUPPORTED_CHANNEL_MODE = 0xC6u8,
+    INVALID_SUBBANDS = 0xC7u8,
+    NOT_SUPPORTED_SUBBANDS = 0xC8u8,
+    INVALID_ALLOCATION_METHOD = 0xC9u8,
+    NOT_SUPPORTED_ALLOCATION_METHOD = 0xCAu8,
+    INVALID_MINIMUM_BITPOOL_VALUE = 0xCBu8,
+    NOT_SUPPORTED_MINIMUM_BITPOOL_VALUE = 0xCCu8,
+    INVALID_MAXIMUM_BITPOOL_VALUE = 0xCDu8,
+    NOT_SUPPORTED_MAXIMUM_BITPOOL_VALUE = 0xCEu8,
+    NOT_SUPPORTED_VBR = 0xD3u8,
+    NOT_SUPPORTED_BIT_RATE = 0xD5u8,
+    INVALID_OBJECT_TYPE = 0xD6u8,
+    NOT_SUPPORTED_OBJECT_TYPE = 0xD7u8,
+    INVALID_CHANNELS = 0xD8u8,
+    NOT_SUPPORTED_CHANNELS = 0xD9u8,
+    INVALID_BLOCK_LENGTH = 0xDDu8,
+    INVALID_CODEC_PARAMETER = 0xE2u8,
+    NOT_SUPPORTED_CODEC_PARAMETER = 0xE3u8,
+    INVALID_DRC = 0xE4u8,
+    NOT_SUPPORTED_DRC = 0xE5u8,
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpStreamConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpStreamConfiguration.aidl
new file mode 100644
index 0000000..2a0c4d8
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/A2dpStreamConfiguration.aidl
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+import android.hardware.bluetooth.audio.CodecId;
+
+@VintfStability
+parcelable A2dpStreamConfiguration {
+    /**
+     * Peer MTU (16 bits)
+     */
+    int peerMtu;
+
+    /**
+     * Optional SCMS-T Content Protection header
+     * that precedes audio content when enabled [A2DP - 3.2.1-2].
+     * The content protection byte is defined by [Assigned Number - 6.3.2].
+     */
+    @nullable byte[1] cpHeaderScmst;
+
+    /**
+     * Codec Identifier and `configuration` as defined by A2DP for codec
+     * interoperability requirements. Using `codecId.a2dp`, the format is given
+     * by the `Codec Specific Information Elements` [A2DP - 4.3-6.2], and
+     * using `codecId.vendor`, by `Vendor Specific Value` [A2DP - 4.7.2].
+     */
+    CodecId codecId;
+    byte[] configuration;
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AudioConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AudioConfiguration.aidl
index a06337e..5317dfb 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AudioConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AudioConfiguration.aidl
@@ -16,7 +16,9 @@
 
 package android.hardware.bluetooth.audio;
 
+import android.hardware.bluetooth.audio.A2dpStreamConfiguration;
 import android.hardware.bluetooth.audio.CodecConfiguration;
+import android.hardware.bluetooth.audio.HfpConfiguration;
 import android.hardware.bluetooth.audio.LeAudioBroadcastConfiguration;
 import android.hardware.bluetooth.audio.LeAudioConfiguration;
 import android.hardware.bluetooth.audio.PcmConfiguration;
@@ -30,4 +32,6 @@
     CodecConfiguration a2dpConfig;
     LeAudioConfiguration leAudioConfig;
     LeAudioBroadcastConfiguration leAudioBroadcastConfig;
+    HfpConfiguration hfpConfig;
+    A2dpStreamConfiguration a2dp;
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecParameters.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecParameters.aidl
new file mode 100644
index 0000000..b6f8a94
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecParameters.aidl
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+import android.hardware.bluetooth.audio.ChannelMode;
+
+/**
+ * Used to exchange generic codec parameters between the stack and the provider.
+ */
+@VintfStability
+parcelable CodecParameters {
+    /**
+     * PCM related parameters:
+     * - Mono, Dual-Mono or Stereo
+     * - Sampling frequencies, in Hz.
+     * - Fixed point resolution, basically 16, 24 or 32 bits by samples.
+     *   The value 32 should be used for floating point representation..
+     */
+    ChannelMode channelMode;
+    int samplingFrequencyHz;
+    int bitdepth;
+
+    /**
+     * Encoding parameters:
+     *
+     * - Bitrate limits on a frame basis, defined in bits per second.
+     *   The encoder bitrate mode can be encoded following this rule:
+     *     . minBitrate equals to maxBitrate for constant bitrate
+     *     . minBitrate set to 0, for VBR with peak bitrate at maxBitratre value.
+     *     . minBitrate greater than 0, for ABR, the bitrate of the stream varies
+     *       between minBitrate to maxBitrate according to link quality.
+     *   The 0 value for both means "undefined" or "don't care".
+     *
+     * - Low-latency configuration privileged
+     * - Lossless effort indication. The 'False' value can be used as "don't care"
+     */
+    int minBitrate;
+    int maxBitrate;
+
+    boolean lowLatency;
+    boolean lossless;
+
+    /**
+     * Vendor specific parameters, inserted in the Vendor Specific HCI Command
+     * `Start A2DP Offload` as it is. The stack operates as a pass-through;
+     * the data SHALL NOT be inspected nor written by the client.
+     * The size is limited to 128 bytes by the client; a larger size is
+     * interpreted as a zero-sized buffer.
+     */
+    byte[] vendorSpecificParameters;
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/HfpConfiguration.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/HfpConfiguration.aidl
new file mode 100644
index 0000000..9494bb9
--- /dev/null
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/HfpConfiguration.aidl
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+import android.hardware.bluetooth.audio.CodecId;
+
+@VintfStability
+parcelable HfpConfiguration {
+    /**
+     * Codec identifier.
+     */
+    CodecId codecId;
+
+    /**
+     * The connection handle used for SCO connection.
+     * Range: 0x0000 to 0x0EFF.
+     */
+    int connectionHandle;
+
+    /**
+     *  Echo canceling and noise reduction functions resident in the AG.
+     */
+    boolean nrec;
+
+    /**
+     *  Indicate whether the codec is encoded and decoded in the controller.
+     *  If the codec is inside the DSP, then it would be transparent mode.
+     */
+    boolean controllerCodec;
+}
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
index 558173e..b5c8a31 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.aidl
@@ -16,8 +16,14 @@
 
 package android.hardware.bluetooth.audio;
 
+import android.hardware.bluetooth.audio.A2dpConfiguration;
+import android.hardware.bluetooth.audio.A2dpConfigurationHint;
+import android.hardware.bluetooth.audio.A2dpRemoteCapabilities;
+import android.hardware.bluetooth.audio.A2dpStatus;
 import android.hardware.bluetooth.audio.AudioConfiguration;
 import android.hardware.bluetooth.audio.BluetoothAudioStatus;
+import android.hardware.bluetooth.audio.CodecId;
+import android.hardware.bluetooth.audio.CodecParameters;
 import android.hardware.bluetooth.audio.IBluetoothAudioPort;
 import android.hardware.bluetooth.audio.LatencyMode;
 import android.hardware.common.fmq.MQDescriptor;
@@ -92,4 +98,30 @@
      * mode, the API will be called with supported is false.
      */
     void setLowLatencyModeAllowed(in boolean allowed);
+
+    /**
+     * Validate and parse an A2DP Configuration,
+     * shall be used with A2DP session types
+     *
+     * @param codecId Identify the codec
+     * @param The configuration as defined by the A2DP's `Codec Specific
+     *        Information Elements`, or `Vendor Specific Value` when CodecId
+     *        format is set to `VENDOR`.
+     * @param codecParameters result of parsing, when the validation succeeded.
+     * @return A2DP Status of the parsing
+     */
+    A2dpStatus parseA2dpConfiguration(
+            in CodecId codecId, in byte[] configuration, out CodecParameters codecParameters);
+
+    /**
+     * Return a configuration, from a list of remote Capabilites,
+     * shall be used with A2DP session types
+     *
+     * @param remoteCapabilities The capabilities of the remote device
+     * @param hint Hint on selection (audio context and/or codec)
+     * @return The requested configuration. A null value value is returned
+     *         when no suitable configuration has been found.
+     */
+    @nullable A2dpConfiguration getA2dpConfiguration(
+            in List<A2dpRemoteCapabilities> remoteA2dpCapabilities, in A2dpConfigurationHint hint);
 }
diff --git a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/SessionType.aidl b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/SessionType.aidl
index 7acb5c6..35292a1 100644
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/SessionType.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/SessionType.aidl
@@ -70,4 +70,17 @@
      * The decoding of AVDTP media is done by HW and there is control only
      */
     A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+    /**
+     * Used when audio is encoded by Bluetooth Stack and is streaming to HFP device.
+     */
+    HFP_SOFTWARE_ENCODING_DATAPATH,
+    /**
+     * Used when audio is decoded by Bluetooth Stack and is streaming to HFP device.
+     */
+    HFP_SOFTWARE_DECODING_DATAPATH,
+    /**
+     * Used when encoded and decoded by hardware offload and is streamed to HFP device.
+     * This is a control path only.
+     */
+    HFP_HARDWARE_OFFLOAD_DATAPATH,
 }
diff --git a/bluetooth/audio/aidl/default/A2dpBits.h b/bluetooth/audio/aidl/default/A2dpBits.h
new file mode 100644
index 0000000..f467c95
--- /dev/null
+++ b/bluetooth/audio/aidl/default/A2dpBits.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2023 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
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+class A2dpBits {
+  const uint8_t* cdata_;
+  uint8_t* data_;
+
+ public:
+  A2dpBits(const std::vector<uint8_t>& vector) : cdata_(vector.data()) {}
+
+  A2dpBits(std::vector<uint8_t>& vector)
+      : cdata_(vector.data()), data_(vector.data()) {}
+
+  struct Range {
+    const int first, len;
+    constexpr Range(int first, int last)
+        : first(first), len(last - first + 1) {}
+    constexpr Range(int index) : first(index), len(1) {}
+  };
+
+  constexpr bool get(int bit) const {
+    return (cdata_[bit >> 3] >> (7 - (bit & 7))) & 1;
+  }
+
+  constexpr unsigned get(const Range& range) const {
+    unsigned v(0);
+    for (int i = 0; i < range.len; i++)
+      v |= get(range.first + i) << ((range.len - 1) - i);
+    return v;
+  }
+
+  constexpr void set(int bit, int value = 1) {
+    uint8_t m = 1 << (7 - (bit & 7));
+    if (value)
+      data_[bit >> 3] |= m;
+    else
+      data_[bit >> 3] &= ~m;
+  }
+
+  constexpr void set(const Range& range, int value) {
+    for (int i = 0; i < range.len; i++)
+      set(range.first + i, (value >> ((range.len - 1) - i)) & 1);
+  }
+
+  constexpr int find_active_bit(const Range& range) const {
+    unsigned v = get(range);
+    int i = 0;
+    for (; i < range.len && ((v >> i) & 1) == 0; i++)
+      ;
+    return i < range.len && (v ^ (1 << i)) == 0
+               ? range.first + (range.len - 1) - i
+               : -1;
+  }
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.cpp b/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.cpp
index 2d0d8c9..ba7a89d 100644
--- a/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.cpp
+++ b/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.cpp
@@ -22,6 +22,10 @@
 #include <BluetoothAudioSessionReport.h>
 #include <android-base/logging.h>
 
+#include "A2dpOffloadCodecAac.h"
+#include "A2dpOffloadCodecFactory.h"
+#include "A2dpOffloadCodecSbc.h"
+
 namespace aidl {
 namespace android {
 namespace hardware {
@@ -48,19 +52,44 @@
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
     const AudioConfiguration& audio_config,
     const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
-  if (audio_config.getTag() != AudioConfiguration::a2dpConfig) {
+  if (audio_config.getTag() == AudioConfiguration::Tag::a2dp) {
+    auto a2dp_config = audio_config.get<AudioConfiguration::Tag::a2dp>();
+    A2dpStatus a2dp_status = A2dpStatus::NOT_SUPPORTED_CODEC_TYPE;
+
+    if (a2dp_config.codecId ==
+        A2dpOffloadCodecSbc::GetInstance()->GetCodecId()) {
+      SbcParameters sbc_parameters;
+      a2dp_status = A2dpOffloadCodecSbc::GetInstance()->ParseConfiguration(
+          a2dp_config.configuration, &sbc_parameters);
+
+    } else if (a2dp_config.codecId ==
+               A2dpOffloadCodecAac::GetInstance()->GetCodecId()) {
+      AacParameters aac_parameters;
+      a2dp_status = A2dpOffloadCodecAac::GetInstance()->ParseConfiguration(
+          a2dp_config.configuration, &aac_parameters);
+    }
+    if (a2dp_status != A2dpStatus::OK) {
+      LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                   << audio_config.toString();
+      *_aidl_return = DataMQDesc();
+      return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+  } else if (audio_config.getTag() == AudioConfiguration::Tag::a2dpConfig) {
+    if (!BluetoothAudioCodecs::IsOffloadCodecConfigurationValid(
+            session_type_,
+            audio_config.get<AudioConfiguration::a2dpConfig>())) {
+      LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                   << audio_config.toString();
+      *_aidl_return = DataMQDesc();
+      return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+  } else {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
     *_aidl_return = DataMQDesc();
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
-  if (!BluetoothAudioCodecs::IsOffloadCodecConfigurationValid(
-          session_type_, audio_config.get<AudioConfiguration::a2dpConfig>())) {
-    LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
-                 << audio_config.toString();
-    *_aidl_return = DataMQDesc();
-    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
-  }
+
   return BluetoothAudioProvider::startSession(
       host_if, audio_config, latency_modes, _aidl_return);
 }
@@ -73,6 +102,36 @@
   return ndk::ScopedAStatus::ok();
 }
 
+ndk::ScopedAStatus A2dpOffloadAudioProvider::parseA2dpConfiguration(
+    const CodecId& codec_id, const std::vector<uint8_t>& configuration,
+    CodecParameters* codec_parameters, A2dpStatus* _aidl_return) {
+  auto codec = A2dpOffloadCodecFactory::GetInstance()->GetCodec(codec_id);
+  if (!codec) {
+    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+              << " - CodecId=" << codec_id.toString() << " is not found";
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+
+  *_aidl_return = codec->ParseConfiguration(configuration, codec_parameters);
+
+  return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus A2dpOffloadAudioProvider::getA2dpConfiguration(
+    const std::vector<A2dpRemoteCapabilities>& remote_a2dp_capabilities,
+    const A2dpConfigurationHint& hint,
+    std::optional<audio::A2dpConfiguration>* _aidl_return) {
+  *_aidl_return = std::nullopt;
+  A2dpConfiguration avdtp_configuration;
+
+  if (A2dpOffloadCodecFactory::GetInstance()->GetConfiguration(
+          remote_a2dp_capabilities, hint, &avdtp_configuration))
+    *_aidl_return =
+        std::make_optional<A2dpConfiguration>(std::move(avdtp_configuration));
+
+  return ndk::ScopedAStatus::ok();
+}
+
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.h b/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.h
index e6f188b..7cc6dee 100644
--- a/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.h
+++ b/bluetooth/audio/aidl/default/A2dpOffloadAudioProvider.h
@@ -34,7 +34,16 @@
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
       const AudioConfiguration& audio_config,
       const std::vector<LatencyMode>& latency_modes,
-      DataMQDesc* _aidl_return);
+      DataMQDesc* _aidl_return) override;
+
+  ndk::ScopedAStatus parseA2dpConfiguration(
+      const CodecId& codec_id, const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters, A2dpStatus* _aidl_return) override;
+
+  ndk::ScopedAStatus getA2dpConfiguration(
+      const std::vector<A2dpRemoteCapabilities>& remote_a2dp_capabilities,
+      const A2dpConfigurationHint& hint,
+      std::optional<audio::A2dpConfiguration>* _aidl_return) override;
 
  private:
   ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadCodec.h b/bluetooth/audio/aidl/default/A2dpOffloadCodec.h
new file mode 100644
index 0000000..7ed5872
--- /dev/null
+++ b/bluetooth/audio/aidl/default/A2dpOffloadCodec.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2023 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/bluetooth/audio/A2dpStatus.h>
+#include <aidl/android/hardware/bluetooth/audio/ChannelMode.h>
+#include <aidl/android/hardware/bluetooth/audio/CodecParameters.h>
+
+#include "BluetoothAudioProviderFactory.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+class A2dpOffloadCodec {
+ protected:
+  A2dpOffloadCodec(const CodecInfo& info) : info(info) {}
+  virtual ~A2dpOffloadCodec() {}
+
+ public:
+  const CodecInfo& info;
+
+  const CodecId& GetCodecId() const { return info.id; }
+
+  virtual A2dpStatus ParseConfiguration(
+      const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters) const = 0;
+
+  virtual bool BuildConfiguration(
+      const std::vector<uint8_t>& remote_capabilities,
+      const std::optional<CodecParameters>& hint,
+      std::vector<uint8_t>* configuration) const = 0;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadCodecAac.cpp b/bluetooth/audio/aidl/default/A2dpOffloadCodecAac.cpp
new file mode 100644
index 0000000..0f5533a
--- /dev/null
+++ b/bluetooth/audio/aidl/default/A2dpOffloadCodecAac.cpp
@@ -0,0 +1,378 @@
+/*
+ * Copyright (C) 2023 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 "A2dpOffloadCodecAac.h"
+
+#include "A2dpBits.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+/**
+ * AAC Local Capabilities
+ */
+
+enum : bool {
+  kEnableObjectTypeMpeg2AacLc = true,
+  kEnableObjectTypeMpeg4AacLc = true,
+};
+
+enum : bool {
+  kEnableSamplingFrequency44100 = true,
+  kEnableSamplingFrequency48000 = true,
+  kEnableSamplingFrequency88200 = false,
+  kEnableSamplingFrequency96000 = false,
+};
+
+enum : bool {
+  kEnableChannels1 = true,
+  kEnableChannels2 = true,
+};
+
+enum : bool {
+  kEnableVbrSupported = true,
+};
+
+enum : int {
+  kBitdepth = 24,
+};
+
+/**
+ * AAC Signaling format [A2DP - 4.5]
+ */
+
+// clang-format off
+
+constexpr A2dpBits::Range kObjectType        (  0,  6 );
+constexpr A2dpBits::Range kDrcEnable         (  7     );
+constexpr A2dpBits::Range kSamplingFrequency (  8, 19 );
+constexpr A2dpBits::Range kChannels          ( 20, 23 );
+constexpr A2dpBits::Range kVbrSupported      ( 24     );
+constexpr A2dpBits::Range kBitrate           ( 25, 47 );
+constexpr size_t kCapabilitiesSize = 48/8;
+
+// clang-format on
+
+enum {
+  kObjectTypeMpeg2AacLc = kObjectType.first,
+  kObjectTypeMpeg4AacLc,
+  kObjectTypeMpeg4AacLtp,
+  kObjectTypeMpeg4AacScalable,
+  kObjectTypeMpeg4AacHeV1,
+  kObjectTypeMpeg4AacHeV2,
+  kObjectTypeMpeg4AacEldV2
+};
+
+enum {
+  kSamplingFrequency8000 = kSamplingFrequency.first,
+  kSamplingFrequency11025,
+  kSamplingFrequency12000,
+  kSamplingFrequency16000,
+  kSamplingFrequency22050,
+  kSamplingFrequency24000,
+  kSamplingFrequency32000,
+  kSamplingFrequency44100,
+  kSamplingFrequency48000,
+  kSamplingFrequency64000,
+  kSamplingFrequency88200,
+  kSamplingFrequency96000
+};
+
+enum { kChannels1 = kChannels.first, kChannels2, kChannels51, kChannels71 };
+
+/**
+ * AAC Conversion functions
+ */
+
+static AacParameters::ObjectType GetObjectTypeEnum(int object_type) {
+  switch (object_type) {
+    case kObjectTypeMpeg2AacLc:
+      return AacParameters::ObjectType::MPEG2_AAC_LC;
+    case kObjectTypeMpeg4AacLc:
+    default:
+      return AacParameters::ObjectType::MPEG4_AAC_LC;
+  }
+}
+
+static int GetSamplingFrequencyBit(int32_t sampling_frequency) {
+  switch (sampling_frequency) {
+    case 8000:
+      return kSamplingFrequency8000;
+    case 11025:
+      return kSamplingFrequency11025;
+    case 12000:
+      return kSamplingFrequency12000;
+    case 16000:
+      return kSamplingFrequency16000;
+    case 22050:
+      return kSamplingFrequency22050;
+    case 24000:
+      return kSamplingFrequency24000;
+    case 32000:
+      return kSamplingFrequency32000;
+    case 44100:
+      return kSamplingFrequency44100;
+    case 48000:
+      return kSamplingFrequency48000;
+    case 64000:
+      return kSamplingFrequency64000;
+    case 88200:
+      return kSamplingFrequency88200;
+    case 96000:
+      return kSamplingFrequency96000;
+    default:
+      return -1;
+  }
+}
+
+static int32_t GetSamplingFrequencyValue(int sampling_frequency) {
+  switch (sampling_frequency) {
+    case kSamplingFrequency8000:
+      return 8000;
+    case kSamplingFrequency11025:
+      return 11025;
+    case kSamplingFrequency12000:
+      return 12000;
+    case kSamplingFrequency16000:
+      return 16000;
+    case kSamplingFrequency22050:
+      return 22050;
+    case kSamplingFrequency24000:
+      return 24000;
+    case kSamplingFrequency32000:
+      return 32000;
+    case kSamplingFrequency44100:
+      return 44100;
+    case kSamplingFrequency48000:
+      return 48000;
+    case kSamplingFrequency64000:
+      return 64000;
+    case kSamplingFrequency88200:
+      return 88200;
+    case kSamplingFrequency96000:
+      return 96000;
+    default:
+      return 0;
+  }
+}
+
+static int GetChannelsBit(ChannelMode channel_mode) {
+  switch (channel_mode) {
+    case ChannelMode::MONO:
+      return kChannels1;
+    case ChannelMode::STEREO:
+      return kChannels2;
+    default:
+      return -1;
+  }
+}
+
+static ChannelMode GetChannelModeEnum(int channel_mode) {
+  switch (channel_mode) {
+    case kChannels1:
+      return ChannelMode::MONO;
+    case kChannels2:
+      return ChannelMode::STEREO;
+    default:
+      return ChannelMode::UNKNOWN;
+  }
+}
+
+/**
+ * AAC Class implementation
+ */
+
+const A2dpOffloadCodecAac* A2dpOffloadCodecAac::GetInstance() {
+  static A2dpOffloadCodecAac instance;
+  return &instance;
+}
+
+A2dpOffloadCodecAac::A2dpOffloadCodecAac()
+    : A2dpOffloadCodec(info_),
+      info_({.id = CodecId(CodecId::A2dp::AAC), .name = "AAC"}) {
+  info_.transport.set<CodecInfo::Transport::Tag::a2dp>();
+  auto& a2dp_info = info_.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  /* --- Setup Capabilities --- */
+
+  a2dp_info.capabilities.resize(kCapabilitiesSize);
+  std::fill(begin(a2dp_info.capabilities), end(a2dp_info.capabilities), 0);
+
+  auto capabilities = A2dpBits(a2dp_info.capabilities);
+
+  capabilities.set(kObjectTypeMpeg2AacLc, kEnableObjectTypeMpeg2AacLc);
+  capabilities.set(kObjectTypeMpeg4AacLc, kEnableObjectTypeMpeg4AacLc);
+
+  capabilities.set(kSamplingFrequency44100, kEnableSamplingFrequency44100);
+  capabilities.set(kSamplingFrequency48000, kEnableSamplingFrequency48000);
+  capabilities.set(kSamplingFrequency88200, kEnableSamplingFrequency88200);
+  capabilities.set(kSamplingFrequency96000, kEnableSamplingFrequency96000);
+
+  capabilities.set(kChannels1, kEnableChannels1);
+  capabilities.set(kChannels2, kEnableChannels2);
+
+  capabilities.set(kVbrSupported, kEnableVbrSupported);
+
+  /* --- Setup Sampling Frequencies --- */
+
+  auto& sampling_frequency = a2dp_info.samplingFrequencyHz;
+
+  for (auto v : {8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000,
+                 64000, 88200, 96000})
+    if (capabilities.get(GetSamplingFrequencyBit(int32_t(v))))
+      sampling_frequency.push_back(v);
+
+  /* --- Setup Channel Modes --- */
+
+  auto& channel_modes = a2dp_info.channelMode;
+
+  for (auto v : {ChannelMode::MONO, ChannelMode::STEREO})
+    if (capabilities.get(GetChannelsBit(v))) channel_modes.push_back(v);
+
+  /* --- Setup Bitdepth --- */
+
+  a2dp_info.bitdepth.push_back(kBitdepth);
+}
+
+A2dpStatus A2dpOffloadCodecAac::ParseConfiguration(
+    const std::vector<uint8_t>& configuration,
+    CodecParameters* codec_parameters, AacParameters* aac_parameters) const {
+  auto& a2dp_info = info.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  if (configuration.size() != a2dp_info.capabilities.size())
+    return A2dpStatus::BAD_LENGTH;
+
+  auto config = A2dpBits(configuration);
+  auto lcaps = A2dpBits(a2dp_info.capabilities);
+
+  /* --- Check Object Type --- */
+
+  int object_type = config.find_active_bit(kObjectType);
+  if (object_type < 0) return A2dpStatus::INVALID_OBJECT_TYPE;
+  if (!lcaps.get(object_type)) return A2dpStatus::NOT_SUPPORTED_OBJECT_TYPE;
+
+  /* --- Check Sampling Frequency --- */
+
+  int sampling_frequency = config.find_active_bit(kSamplingFrequency);
+  if (sampling_frequency < 0) return A2dpStatus::INVALID_SAMPLING_FREQUENCY;
+  if (!lcaps.get(sampling_frequency))
+    return A2dpStatus::NOT_SUPPORTED_SAMPLING_FREQUENCY;
+
+  /* --- Check Channels --- */
+
+  int channels = config.find_active_bit(kChannels);
+  if (channels < 0) return A2dpStatus::INVALID_CHANNELS;
+  if (!lcaps.get(channels)) return A2dpStatus::NOT_SUPPORTED_CHANNELS;
+
+  /* --- Check Bitrate --- */
+
+  bool vbr = config.get(kVbrSupported);
+  if (vbr && !lcaps.get(kVbrSupported)) return A2dpStatus::NOT_SUPPORTED_VBR;
+
+  int bitrate = config.get(kBitrate);
+  if (vbr && lcaps.get(kBitrate) && bitrate > lcaps.get(kBitrate))
+    return A2dpStatus::NOT_SUPPORTED_BIT_RATE;
+
+  /* --- Return --- */
+
+  codec_parameters->channelMode = GetChannelModeEnum(channels);
+  codec_parameters->samplingFrequencyHz =
+      GetSamplingFrequencyValue(sampling_frequency);
+  codec_parameters->bitdepth = kBitdepth;
+
+  codec_parameters->minBitrate = vbr ? 0 : bitrate;
+  codec_parameters->maxBitrate = bitrate;
+
+  if (aac_parameters)
+    aac_parameters->object_type = GetObjectTypeEnum(object_type);
+
+  return A2dpStatus::OK;
+}
+
+bool A2dpOffloadCodecAac::BuildConfiguration(
+    const std::vector<uint8_t>& remote_capabilities,
+    const std::optional<CodecParameters>& hint,
+    std::vector<uint8_t>* configuration) const {
+  auto& a2dp_info = info_.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  if (remote_capabilities.size() != a2dp_info.capabilities.size()) return false;
+
+  auto lcaps = A2dpBits(a2dp_info.capabilities);
+  auto rcaps = A2dpBits(remote_capabilities);
+
+  configuration->resize(a2dp_info.capabilities.size());
+  std::fill(begin(*configuration), end(*configuration), 0);
+  auto config = A2dpBits(*configuration);
+
+  /* --- Select Object Type --- */
+
+  if (lcaps.get(kObjectTypeMpeg2AacLc) && rcaps.get(kObjectTypeMpeg2AacLc))
+    config.set(kObjectTypeMpeg2AacLc);
+  else if (lcaps.get(kObjectTypeMpeg4AacLc) && rcaps.get(kObjectTypeMpeg4AacLc))
+    config.set(kObjectTypeMpeg4AacLc);
+  else
+    return false;
+
+  /* --- Select Sampling Frequency --- */
+
+  auto sf_hint = hint ? GetSamplingFrequencyBit(hint->samplingFrequencyHz) : -1;
+
+  if (sf_hint >= 0 && lcaps.get(sf_hint) && rcaps.get(sf_hint))
+    config.set(sf_hint);
+  else if (lcaps.get(kSamplingFrequency96000) &&
+           rcaps.get(kSamplingFrequency96000))
+    config.set(kSamplingFrequency96000);
+  else if (lcaps.get(kSamplingFrequency88200) &&
+           rcaps.get(kSamplingFrequency88200))
+    config.set(kSamplingFrequency88200);
+  else if (lcaps.get(kSamplingFrequency48000) &&
+           rcaps.get(kSamplingFrequency48000))
+    config.set(kSamplingFrequency48000);
+  else if (lcaps.get(kSamplingFrequency44100) &&
+           rcaps.get(kSamplingFrequency44100))
+    config.set(kSamplingFrequency44100);
+  else
+    return false;
+
+  /* --- Select Channels --- */
+
+  auto ch_hint = hint ? GetChannelsBit(hint->channelMode) : -1;
+
+  if (ch_hint >= 0 && lcaps.get(ch_hint) && rcaps.get(ch_hint))
+    config.set(ch_hint);
+  else if (lcaps.get(kChannels2) && rcaps.get(kChannels2))
+    config.set(kChannels2);
+  else if (lcaps.get(kChannels1) && rcaps.get(kChannels1))
+    config.set(kChannels1);
+  else
+    return false;
+
+  /* --- Select Bitrate --- */
+
+  if (!hint || hint->minBitrate == 0)
+    config.set(kVbrSupported,
+               lcaps.get(kVbrSupported) && rcaps.get(kVbrSupported));
+
+  int32_t bitrate = lcaps.get(kBitrate);
+  if (hint && hint->maxBitrate > 0 && bitrate)
+    bitrate = std::min(hint->maxBitrate, bitrate);
+  else if (hint && hint->maxBitrate > 0)
+    bitrate = hint->maxBitrate;
+  config.set(kBitrate, bitrate);
+
+  return true;
+}
+
+}  // namespace aidl::android::hardware::bluetooth::audio
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadCodecAac.h b/bluetooth/audio/aidl/default/A2dpOffloadCodecAac.h
new file mode 100644
index 0000000..eefa89b
--- /dev/null
+++ b/bluetooth/audio/aidl/default/A2dpOffloadCodecAac.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2023 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 "A2dpOffloadCodec.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+struct AacParameters : public CodecParameters {
+  enum class ObjectType { MPEG2_AAC_LC, MPEG4_AAC_LC };
+
+  ObjectType object_type;
+};
+
+class A2dpOffloadCodecAac : public A2dpOffloadCodec {
+  CodecInfo info_;
+
+  A2dpOffloadCodecAac();
+
+  A2dpStatus ParseConfiguration(const std::vector<uint8_t>& configuration,
+                                CodecParameters* codec_parameters,
+                                AacParameters* aac_parameters) const;
+
+ public:
+  static const A2dpOffloadCodecAac* GetInstance();
+
+  A2dpStatus ParseConfiguration(
+      const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters) const override {
+    return ParseConfiguration(configuration, codec_parameters, nullptr);
+  }
+
+  A2dpStatus ParseConfiguration(const std::vector<uint8_t>& configuration,
+                                AacParameters* aac_parameters) const {
+    return ParseConfiguration(configuration, aac_parameters, aac_parameters);
+  }
+
+  bool BuildConfiguration(const std::vector<uint8_t>& remote_capabilities,
+                          const std::optional<CodecParameters>& hint,
+                          std::vector<uint8_t>* configuration) const override;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadCodecFactory.cpp b/bluetooth/audio/aidl/default/A2dpOffloadCodecFactory.cpp
new file mode 100644
index 0000000..73d8fb1
--- /dev/null
+++ b/bluetooth/audio/aidl/default/A2dpOffloadCodecFactory.cpp
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2023 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 "A2dpOffloadCodecFactory.h"
+
+#include <algorithm>
+#include <cassert>
+
+#include "A2dpOffloadCodecAac.h"
+#include "A2dpOffloadCodecSbc.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+/**
+ * Local Capabilities Configuration
+ */
+
+enum : bool {
+  kEnableAac = true,
+  kEnableSbc = true,
+};
+
+/**
+ * Class implementation
+ */
+
+const A2dpOffloadCodecFactory* A2dpOffloadCodecFactory::GetInstance() {
+  static A2dpOffloadCodecFactory instance;
+  return &instance;
+}
+
+A2dpOffloadCodecFactory::A2dpOffloadCodecFactory()
+    : name("Offload"), codecs(ranked_codecs_) {
+  ranked_codecs_.reserve(kEnableAac + kEnableSbc);
+
+  if (kEnableAac) ranked_codecs_.push_back(A2dpOffloadCodecAac::GetInstance());
+  if (kEnableSbc) ranked_codecs_.push_back(A2dpOffloadCodecSbc::GetInstance());
+}
+
+const A2dpOffloadCodec* A2dpOffloadCodecFactory::GetCodec(CodecId id) const {
+  auto codec = std::find_if(begin(ranked_codecs_), end(ranked_codecs_),
+                            [&](auto c) { return id == c->info.id; });
+
+  return codec != end(ranked_codecs_) ? *codec : nullptr;
+}
+
+bool A2dpOffloadCodecFactory::GetConfiguration(
+    const std::vector<A2dpRemoteCapabilities>& remote_capabilities,
+    const A2dpConfigurationHint& hint, A2dpConfiguration* configuration) const {
+  decltype(ranked_codecs_) codecs;
+
+  codecs.reserve(ranked_codecs_.size());
+
+  auto hinted_codec =
+      std::find_if(begin(ranked_codecs_), end(ranked_codecs_),
+                   [&](auto c) { return hint.codecId == c->info.id; });
+
+  if (hinted_codec != end(ranked_codecs_)) codecs.push_back(*hinted_codec);
+
+  std::copy_if(begin(ranked_codecs_), end(ranked_codecs_),
+               std::back_inserter(codecs),
+               [&](auto c) { return c != *hinted_codec; });
+
+  for (auto codec : codecs) {
+    auto rc =
+        std::find_if(begin(remote_capabilities), end(remote_capabilities),
+                     [&](auto& rc__) { return codec->info.id == rc__.id; });
+
+    if ((rc == end(remote_capabilities)) ||
+        !codec->BuildConfiguration(rc->capabilities, hint.codecParameters,
+                                   &configuration->configuration))
+      continue;
+
+    configuration->id = codec->info.id;
+    A2dpStatus status = codec->ParseConfiguration(configuration->configuration,
+                                                  &configuration->parameters);
+    assert(status == A2dpStatus::OK);
+
+    configuration->remoteSeid = rc->seid;
+
+    return true;
+  }
+
+  return false;
+}
+
+}  // namespace aidl::android::hardware::bluetooth::audio
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadCodecFactory.h b/bluetooth/audio/aidl/default/A2dpOffloadCodecFactory.h
new file mode 100644
index 0000000..3fb5b1d
--- /dev/null
+++ b/bluetooth/audio/aidl/default/A2dpOffloadCodecFactory.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2023 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 "A2dpOffloadCodec.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+class A2dpOffloadCodecFactory {
+  std::vector<const A2dpOffloadCodec*> ranked_codecs_;
+
+  A2dpOffloadCodecFactory();
+
+ public:
+  const std::string name;
+  const std::vector<const A2dpOffloadCodec*>& codecs;
+
+  static const A2dpOffloadCodecFactory* GetInstance();
+
+  const A2dpOffloadCodec* GetCodec(CodecId id) const;
+
+  bool GetConfiguration(const std::vector<A2dpRemoteCapabilities>&,
+                        const A2dpConfigurationHint& hint,
+                        A2dpConfiguration* configuration) const;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadCodecSbc.cpp b/bluetooth/audio/aidl/default/A2dpOffloadCodecSbc.cpp
new file mode 100644
index 0000000..36d8f72
--- /dev/null
+++ b/bluetooth/audio/aidl/default/A2dpOffloadCodecSbc.cpp
@@ -0,0 +1,510 @@
+/*
+ * Copyright (C) 2023 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 "A2dpOffloadCodecSbc.h"
+
+#include <algorithm>
+
+#include "A2dpBits.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+/**
+ * SBC Local Capabilities
+ */
+
+enum : bool {
+  kEnableSamplingFrequency44100 = true,
+  kEnableSamplingFrequency48000 = true,
+};
+
+enum : bool {
+  kEnableChannelModeMono = true,
+  kEnableChannelModeDualChannel = true,
+  kEnableChannelModeStereo = true,
+  kEnableChannelModeJointStereo = true,
+};
+
+enum : bool {
+  kEnableBlockLength4 = true,
+  kEnableBlockLength8 = true,
+  kEnableBlockLength12 = true,
+  kEnableBlockLength16 = true,
+};
+
+enum : bool {
+  kEnableSubbands4 = true,
+  kEnableSubbands8 = true,
+};
+
+enum : bool {
+  kEnableAllocationMethodSnr = true,
+  kEnableAllocationMethodLoudness = true,
+};
+
+enum : uint8_t {
+  kDefaultMinimumBitpool = 2,
+  kDefaultMaximumBitpool = 250,
+};
+
+enum : int {
+  kBitdepth = 16,
+};
+
+/**
+ * SBC Signaling format [A2DP - 4.3]
+ */
+
+// clang-format off
+
+constexpr A2dpBits::Range kSamplingFrequency (  0,  3 );
+constexpr A2dpBits::Range kChannelMode       (  4,  7 );
+constexpr A2dpBits::Range kBlockLength       (  8, 11 );
+constexpr A2dpBits::Range kSubbands          ( 12, 13 );
+constexpr A2dpBits::Range kAllocationMethod  ( 14, 15 );
+constexpr A2dpBits::Range kMinimumBitpool    ( 16, 23 );
+constexpr A2dpBits::Range kMaximumBitpool    ( 24, 31 );
+constexpr size_t kCapabilitiesSize = 32/8;
+
+// clang-format on
+
+enum {
+  kSamplingFrequency16000 = kSamplingFrequency.first,
+  kSamplingFrequency32000,
+  kSamplingFrequency44100,
+  kSamplingFrequency48000
+};
+
+enum {
+  kChannelModeMono = kChannelMode.first,
+  kChannelModeDualChannel,
+  kChannelModeStereo,
+  kChannelModeJointStereo
+};
+
+enum {
+  kBlockLength4 = kBlockLength.first,
+  kBlockLength8,
+  kBlockLength12,
+  kBlockLength16
+};
+
+enum { kSubbands8 = kSubbands.first, kSubbands4 };
+
+enum {
+  kAllocationMethodSnr = kAllocationMethod.first,
+  kAllocationMethodLoudness
+};
+
+/**
+ * SBC Conversion functions
+ */
+
+static int GetSamplingFrequencyBit(int32_t sampling_frequency) {
+  switch (sampling_frequency) {
+    case 16000:
+      return kSamplingFrequency16000;
+    case 32000:
+      return kSamplingFrequency32000;
+    case 44100:
+      return kSamplingFrequency44100;
+    case 48000:
+      return kSamplingFrequency48000;
+    default:
+      return -1;
+  }
+}
+
+static int32_t GetSamplingFrequencyValue(int sampling_frequency) {
+  switch (sampling_frequency) {
+    case kSamplingFrequency16000:
+      return 16000;
+    case kSamplingFrequency32000:
+      return 32000;
+    case kSamplingFrequency44100:
+      return 44100;
+    case kSamplingFrequency48000:
+      return 48000;
+    default:
+      return 0;
+  }
+}
+
+static int GetChannelModeBit(ChannelMode channel_mode) {
+  switch (channel_mode) {
+    case ChannelMode::STEREO:
+      return kChannelModeJointStereo | kChannelModeStereo;
+    case ChannelMode::DUALMONO:
+      return kChannelModeDualChannel;
+    case ChannelMode::MONO:
+      return kChannelModeMono;
+    default:
+      return -1;
+  }
+}
+
+static ChannelMode GetChannelModeEnum(int channel_mode) {
+  switch (channel_mode) {
+    case kChannelModeMono:
+      return ChannelMode::MONO;
+    case kChannelModeDualChannel:
+      return ChannelMode::DUALMONO;
+    case kChannelModeStereo:
+    case kChannelModeJointStereo:
+      return ChannelMode::STEREO;
+    default:
+      return ChannelMode::UNKNOWN;
+  }
+}
+
+static int32_t GetBlockLengthValue(int block_length) {
+  switch (block_length) {
+    case kBlockLength4:
+      return 4;
+    case kBlockLength8:
+      return 8;
+    case kBlockLength12:
+      return 12;
+    case kBlockLength16:
+      return 16;
+    default:
+      return 0;
+  }
+}
+
+static int32_t GetSubbandsValue(int subbands) {
+  switch (subbands) {
+    case kSubbands4:
+      return 4;
+    case kSubbands8:
+      return 8;
+    default:
+      return 0;
+  }
+}
+
+static SbcParameters::AllocationMethod GetAllocationMethodEnum(
+    int allocation_method) {
+  switch (allocation_method) {
+    case kAllocationMethodSnr:
+      return SbcParameters::AllocationMethod::SNR;
+    case kAllocationMethodLoudness:
+    default:
+      return SbcParameters::AllocationMethod::LOUDNESS;
+  }
+}
+
+static int32_t GetSamplingFrequencyValue(const A2dpBits& configuration) {
+  return GetSamplingFrequencyValue(
+      configuration.find_active_bit(kSamplingFrequency));
+}
+
+static int32_t GetBlockLengthValue(const A2dpBits& configuration) {
+  return GetBlockLengthValue(configuration.find_active_bit(kBlockLength));
+}
+
+static int32_t GetSubbandsValue(const A2dpBits& configuration) {
+  return GetSubbandsValue(configuration.find_active_bit(kSubbands));
+}
+
+static int GetFrameSize(const A2dpBits& configuration, int bitpool) {
+  const int kSbcHeaderSize = 4;
+  int subbands = GetSubbandsValue(configuration);
+  int blocks = GetBlockLengthValue(configuration);
+
+  unsigned bits =
+      ((4 * subbands) << !configuration.get(kChannelModeMono)) +
+      ((blocks * bitpool) << configuration.get(kChannelModeDualChannel)) +
+      ((configuration.get(kChannelModeJointStereo) ? subbands : 0));
+
+  return kSbcHeaderSize + ((bits + 7) >> 3);
+}
+
+static int GetBitrate(const A2dpBits& configuration, int bitpool) {
+  int sampling_frequency = GetSamplingFrequencyValue(configuration);
+  int subbands = GetSubbandsValue(configuration);
+  int blocks = GetBlockLengthValue(configuration);
+  int bits = 8 * GetFrameSize(configuration, bitpool);
+
+  return (bits * sampling_frequency) / (blocks * subbands);
+}
+
+static uint8_t GetBitpool(const A2dpBits& configuration, int bitrate) {
+  int bitpool = 0;
+
+  for (int i = 128; i; i >>= 1)
+    if (bitrate > GetBitrate(configuration, bitpool + i)) {
+      bitpool += i;
+    }
+
+  return std::clamp(bitpool, 2, 250);
+}
+
+/**
+ * SBC Class implementation
+ */
+
+const A2dpOffloadCodecSbc* A2dpOffloadCodecSbc::GetInstance() {
+  static A2dpOffloadCodecSbc instance;
+  return &instance;
+}
+
+A2dpOffloadCodecSbc::A2dpOffloadCodecSbc()
+    : A2dpOffloadCodec(info_),
+      info_({.id = CodecId(CodecId::A2dp::SBC), .name = "SBC"}) {
+  info_.transport.set<CodecInfo::Transport::Tag::a2dp>();
+  auto& a2dp_info = info_.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  /* --- Setup Capabilities --- */
+
+  a2dp_info.capabilities.resize(kCapabilitiesSize);
+  std::fill(begin(a2dp_info.capabilities), end(a2dp_info.capabilities), 0);
+
+  auto capabilities = A2dpBits(a2dp_info.capabilities);
+
+  capabilities.set(kSamplingFrequency44100, kEnableSamplingFrequency44100);
+  capabilities.set(kSamplingFrequency48000, kEnableSamplingFrequency48000);
+
+  capabilities.set(kChannelModeMono, kEnableChannelModeMono);
+  capabilities.set(kChannelModeDualChannel, kEnableChannelModeDualChannel);
+  capabilities.set(kChannelModeStereo, kEnableChannelModeStereo);
+  capabilities.set(kChannelModeJointStereo, kEnableChannelModeJointStereo);
+
+  capabilities.set(kBlockLength4, kEnableBlockLength4);
+  capabilities.set(kBlockLength8, kEnableBlockLength8);
+  capabilities.set(kBlockLength12, kEnableBlockLength12);
+  capabilities.set(kBlockLength16, kEnableBlockLength16);
+
+  capabilities.set(kSubbands4, kEnableSubbands4);
+  capabilities.set(kSubbands8, kEnableSubbands8);
+
+  capabilities.set(kSubbands4, kEnableSubbands4);
+  capabilities.set(kSubbands8, kEnableSubbands8);
+
+  capabilities.set(kAllocationMethodSnr, kEnableAllocationMethodSnr);
+  capabilities.set(kAllocationMethodLoudness, kEnableAllocationMethodLoudness);
+
+  capabilities.set(kMinimumBitpool, kDefaultMinimumBitpool);
+  capabilities.set(kMaximumBitpool, kDefaultMaximumBitpool);
+
+  /* --- Setup Sampling Frequencies --- */
+
+  auto& sampling_frequency = a2dp_info.samplingFrequencyHz;
+
+  for (auto v : {16000, 32000, 44100, 48000})
+    if (capabilities.get(GetSamplingFrequencyBit(int32_t(v))))
+      sampling_frequency.push_back(v);
+
+  /* --- Setup Channel Modes --- */
+
+  auto& channel_modes = a2dp_info.channelMode;
+
+  for (auto v : {ChannelMode::MONO, ChannelMode::DUALMONO, ChannelMode::STEREO})
+    if (capabilities.get(GetChannelModeBit(v))) channel_modes.push_back(v);
+
+  /* --- Setup Bitdepth --- */
+
+  a2dp_info.bitdepth.push_back(kBitdepth);
+}
+
+A2dpStatus A2dpOffloadCodecSbc::ParseConfiguration(
+    const std::vector<uint8_t>& configuration,
+    CodecParameters* codec_parameters, SbcParameters* sbc_parameters) const {
+  auto& a2dp_info = info.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  if (configuration.size() != a2dp_info.capabilities.size())
+    return A2dpStatus::BAD_LENGTH;
+
+  auto config = A2dpBits(configuration);
+  auto lcaps = A2dpBits(a2dp_info.capabilities);
+
+  /* --- Check Sampling Frequency --- */
+
+  int sampling_frequency = config.find_active_bit(kSamplingFrequency);
+  if (sampling_frequency < 0) return A2dpStatus::INVALID_SAMPLING_FREQUENCY;
+  if (!lcaps.get(sampling_frequency))
+    return A2dpStatus::NOT_SUPPORTED_SAMPLING_FREQUENCY;
+
+  /* --- Check Channel Mode --- */
+
+  int channel_mode = config.find_active_bit(kChannelMode);
+  if (channel_mode < 0) return A2dpStatus::INVALID_CHANNEL_MODE;
+  if (!lcaps.get(channel_mode)) return A2dpStatus::NOT_SUPPORTED_CHANNEL_MODE;
+
+  /* --- Check Block Length --- */
+
+  int block_length = config.find_active_bit(kBlockLength);
+  if (block_length < 0) return A2dpStatus::INVALID_BLOCK_LENGTH;
+
+  /* --- Check Subbands --- */
+
+  int subbands = config.find_active_bit(kSubbands);
+  if (subbands < 0) return A2dpStatus::INVALID_SUBBANDS;
+  if (!lcaps.get(subbands)) return A2dpStatus::NOT_SUPPORTED_SUBBANDS;
+
+  /* --- Check Allocation Method --- */
+
+  int allocation_method = config.find_active_bit(kAllocationMethod);
+  if (allocation_method < 0) return A2dpStatus::INVALID_ALLOCATION_METHOD;
+  if (!lcaps.get(allocation_method))
+    return A2dpStatus::NOT_SUPPORTED_ALLOCATION_METHOD;
+
+  /* --- Check Bitpool --- */
+
+  uint8_t min_bitpool = config.get(kMinimumBitpool);
+  if (min_bitpool < 2 || min_bitpool > 250)
+    return A2dpStatus::INVALID_MINIMUM_BITPOOL_VALUE;
+  if (min_bitpool < lcaps.get(kMinimumBitpool))
+    return A2dpStatus::NOT_SUPPORTED_MINIMUM_BITPOOL_VALUE;
+
+  uint8_t max_bitpool = config.get(kMaximumBitpool);
+  if (max_bitpool < 2 || max_bitpool > 250)
+    return A2dpStatus::INVALID_MAXIMUM_BITPOOL_VALUE;
+  if (max_bitpool > lcaps.get(kMaximumBitpool))
+    return A2dpStatus::NOT_SUPPORTED_MAXIMUM_BITPOOL_VALUE;
+
+  /* --- Return --- */
+
+  codec_parameters->channelMode = GetChannelModeEnum(channel_mode);
+  codec_parameters->samplingFrequencyHz =
+      GetSamplingFrequencyValue(sampling_frequency);
+  codec_parameters->bitdepth = kBitdepth;
+
+  codec_parameters->minBitrate = GetBitrate(config, min_bitpool);
+  codec_parameters->maxBitrate = GetBitrate(config, max_bitpool);
+
+  if (sbc_parameters) {
+    sbc_parameters->block_length = GetBlockLengthValue(block_length);
+    sbc_parameters->subbands = GetSubbandsValue(subbands);
+    sbc_parameters->allocation_method =
+        GetAllocationMethodEnum(allocation_method);
+    sbc_parameters->min_bitpool = min_bitpool;
+    sbc_parameters->max_bitpool = max_bitpool;
+  }
+
+  return A2dpStatus::OK;
+}
+
+bool A2dpOffloadCodecSbc::BuildConfiguration(
+    const std::vector<uint8_t>& remote_capabilities,
+    const std::optional<CodecParameters>& hint,
+    std::vector<uint8_t>* configuration) const {
+  auto& a2dp_info = info.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  if (remote_capabilities.size() != a2dp_info.capabilities.size()) return false;
+
+  auto lcaps = A2dpBits(a2dp_info.capabilities);
+  auto rcaps = A2dpBits(remote_capabilities);
+
+  configuration->resize(a2dp_info.capabilities.size());
+  std::fill(begin(*configuration), end(*configuration), 0);
+  auto config = A2dpBits(*configuration);
+
+  /* --- Select Sampling Frequency --- */
+
+  auto sf_hint = hint ? GetSamplingFrequencyBit(hint->samplingFrequencyHz) : -1;
+
+  if (sf_hint >= 0 && lcaps.get(sf_hint) && rcaps.get(sf_hint))
+    config.set(sf_hint);
+  else if (lcaps.get(kSamplingFrequency44100) &&
+           rcaps.get(kSamplingFrequency44100))
+    config.set(kSamplingFrequency44100);
+  else if (lcaps.get(kSamplingFrequency48000) &&
+           rcaps.get(kSamplingFrequency48000))
+    config.set(kSamplingFrequency48000);
+  else
+    return false;
+
+  /* --- Select Channel Mode --- */
+
+  auto cm_hint = hint ? GetChannelModeBit(hint->channelMode) : -1;
+
+  if (cm_hint >= 0 && lcaps.get(cm_hint) && rcaps.get(cm_hint))
+    config.set(cm_hint);
+  else if (lcaps.get(kChannelModeJointStereo) &&
+           rcaps.get(kChannelModeJointStereo))
+    config.set(kChannelModeJointStereo);
+  else if (lcaps.get(kChannelModeStereo) && rcaps.get(kChannelModeStereo))
+    config.set(kChannelModeStereo);
+  else if (lcaps.get(kChannelModeDualChannel) &&
+           rcaps.get(kChannelModeDualChannel))
+    config.set(kChannelModeDualChannel);
+  else if (lcaps.get(kChannelModeMono) && rcaps.get(kChannelModeMono))
+    config.set(kChannelModeMono);
+  else
+    return false;
+
+  /* --- Select Block Length --- */
+
+  if (lcaps.get(kBlockLength16) && rcaps.get(kBlockLength16))
+    config.set(kBlockLength16);
+  else if (lcaps.get(kBlockLength12) && rcaps.get(kBlockLength12))
+    config.set(kBlockLength12);
+  else if (lcaps.get(kBlockLength8) && rcaps.get(kBlockLength8))
+    config.set(kBlockLength8);
+  else if (lcaps.get(kBlockLength4) && rcaps.get(kBlockLength4))
+    config.set(kBlockLength4);
+  else
+    return false;
+
+  /* --- Select Subbands --- */
+
+  if (lcaps.get(kSubbands8) && rcaps.get(kSubbands8))
+    config.set(kSubbands8);
+  else if (lcaps.get(kSubbands4) && rcaps.get(kSubbands4))
+    config.set(kSubbands4);
+  else
+    return false;
+
+  /* --- Select Allocation method --- */
+
+  if (lcaps.get(kAllocationMethodLoudness) &&
+      rcaps.get(kAllocationMethodLoudness))
+    config.set(kAllocationMethodLoudness);
+  else if (lcaps.get(kAllocationMethodSnr) && rcaps.get(kAllocationMethodSnr))
+    config.set(kAllocationMethodSnr);
+  else
+    return false;
+
+  /* --- Select Bitpool --- */
+
+  uint8_t min_bitpool = rcaps.get(kMinimumBitpool);
+  uint8_t max_bitpool = rcaps.get(kMaximumBitpool);
+
+  if (min_bitpool < 2 || min_bitpool > 250 || max_bitpool < 2 ||
+      max_bitpool > 250 || min_bitpool > max_bitpool) {
+    min_bitpool = 2;
+    max_bitpool = 250;
+  }
+
+  min_bitpool = std::max(min_bitpool, uint8_t(lcaps.get(kMinimumBitpool)));
+  max_bitpool = std::max(max_bitpool, uint8_t(lcaps.get(kMaximumBitpool)));
+
+  if (hint) {
+    min_bitpool =
+        std::max(min_bitpool, GetBitpool(*configuration, hint->minBitrate));
+    if (hint->maxBitrate && hint->maxBitrate >= hint->minBitrate)
+      max_bitpool =
+          std::min(max_bitpool, GetBitpool(*configuration, hint->maxBitrate));
+  }
+
+  config.set(kMinimumBitpool, min_bitpool);
+  config.set(kMaximumBitpool, max_bitpool);
+
+  return true;
+}
+
+}  // namespace aidl::android::hardware::bluetooth::audio
diff --git a/bluetooth/audio/aidl/default/A2dpOffloadCodecSbc.h b/bluetooth/audio/aidl/default/A2dpOffloadCodecSbc.h
new file mode 100644
index 0000000..c380850
--- /dev/null
+++ b/bluetooth/audio/aidl/default/A2dpOffloadCodecSbc.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2023 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 "A2dpOffloadCodec.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+struct SbcParameters : public CodecParameters {
+  enum class AllocationMethod { SNR, LOUDNESS };
+
+  AllocationMethod allocation_method;
+  int block_length;
+  int subbands;
+  int min_bitpool;
+  int max_bitpool;
+};
+
+class A2dpOffloadCodecSbc : public A2dpOffloadCodec {
+  CodecInfo info_;
+
+  A2dpOffloadCodecSbc();
+
+  A2dpStatus ParseConfiguration(const std::vector<uint8_t>& configuration,
+                                CodecParameters* codec_parameters,
+                                SbcParameters* sbc_parameters) const;
+
+ public:
+  static const A2dpOffloadCodecSbc* GetInstance();
+
+  A2dpStatus ParseConfiguration(
+      const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters) const override {
+    return ParseConfiguration(configuration, codec_parameters, nullptr);
+  }
+
+  A2dpStatus ParseConfiguration(const std::vector<uint8_t>& configuration,
+                                SbcParameters* sbc_parameters) const {
+    return ParseConfiguration(configuration, sbc_parameters, sbc_parameters);
+  }
+
+  bool BuildConfiguration(const std::vector<uint8_t>& remote_capabilities,
+                          const std::optional<CodecParameters>& hint,
+                          std::vector<uint8_t>* configuration) const override;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio
diff --git a/bluetooth/audio/aidl/default/Android.bp b/bluetooth/audio/aidl/default/Android.bp
index 40aea32..69db1b3 100644
--- a/bluetooth/audio/aidl/default/Android.bp
+++ b/bluetooth/audio/aidl/default/Android.bp
@@ -18,8 +18,13 @@
         "BluetoothAudioProvider.cpp",
         "BluetoothAudioProviderFactory.cpp",
         "A2dpOffloadAudioProvider.cpp",
+        "A2dpOffloadCodecAac.cpp",
+        "A2dpOffloadCodecFactory.cpp",
+        "A2dpOffloadCodecSbc.cpp",
         "A2dpSoftwareAudioProvider.cpp",
         "HearingAidAudioProvider.cpp",
+        "HfpOffloadAudioProvider.cpp",
+        "HfpSoftwareAudioProvider.cpp",
         "LeAudioOffloadAudioProvider.cpp",
         "LeAudioSoftwareAudioProvider.cpp",
         "service.cpp",
diff --git a/bluetooth/audio/aidl/default/BluetoothAudioProvider.cpp b/bluetooth/audio/aidl/default/BluetoothAudioProvider.cpp
index f9b18f8..b88e66a 100644
--- a/bluetooth/audio/aidl/default/BluetoothAudioProvider.cpp
+++ b/bluetooth/audio/aidl/default/BluetoothAudioProvider.cpp
@@ -21,6 +21,8 @@
 #include <BluetoothAudioSessionReport.h>
 #include <android-base/logging.h>
 
+#include "A2dpOffloadCodecFactory.h"
+
 namespace aidl {
 namespace android {
 namespace hardware {
@@ -164,6 +166,27 @@
   return ndk::ScopedAStatus::ok();
 }
 
+ndk::ScopedAStatus BluetoothAudioProvider::parseA2dpConfiguration(
+    [[maybe_unused]] const CodecId& codec_id,
+    [[maybe_unused]] const std::vector<uint8_t>& configuration,
+    [[maybe_unused]] CodecParameters* codec_parameters,
+    [[maybe_unused]] A2dpStatus* _aidl_return) {
+  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+            << " is illegal";
+  return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+}
+
+ndk::ScopedAStatus BluetoothAudioProvider::getA2dpConfiguration(
+    [[maybe_unused]] const std::vector<A2dpRemoteCapabilities>&
+        remote_a2dp_capabilities,
+    [[maybe_unused]] const A2dpConfigurationHint& hint,
+    [[maybe_unused]] std::optional<audio::A2dpConfiguration>* _aidl_return) {
+  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+            << " is illegal";
+
+  return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+}
+
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
diff --git a/bluetooth/audio/aidl/default/BluetoothAudioProvider.h b/bluetooth/audio/aidl/default/BluetoothAudioProvider.h
index b6e07a1..27ab13f 100644
--- a/bluetooth/audio/aidl/default/BluetoothAudioProvider.h
+++ b/bluetooth/audio/aidl/default/BluetoothAudioProvider.h
@@ -50,6 +50,14 @@
       const AudioConfiguration& audio_config);
   ndk::ScopedAStatus setLowLatencyModeAllowed(bool allowed);
 
+  ndk::ScopedAStatus parseA2dpConfiguration(
+      const CodecId& codec_id, const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters, A2dpStatus* _aidl_return);
+  ndk::ScopedAStatus getA2dpConfiguration(
+      const std::vector<A2dpRemoteCapabilities>& remote_a2dp_capabilities,
+      const A2dpConfigurationHint& hint,
+      std::optional<audio::A2dpConfiguration>* _aidl_return);
+
   virtual bool isValid(const SessionType& sessionType) = 0;
 
  protected:
diff --git a/bluetooth/audio/aidl/default/BluetoothAudioProviderFactory.cpp b/bluetooth/audio/aidl/default/BluetoothAudioProviderFactory.cpp
index 7e928e9..3a64c4d 100644
--- a/bluetooth/audio/aidl/default/BluetoothAudioProviderFactory.cpp
+++ b/bluetooth/audio/aidl/default/BluetoothAudioProviderFactory.cpp
@@ -22,9 +22,12 @@
 #include <android-base/logging.h>
 
 #include "A2dpOffloadAudioProvider.h"
+#include "A2dpOffloadCodecFactory.h"
 #include "A2dpSoftwareAudioProvider.h"
 #include "BluetoothAudioProvider.h"
 #include "HearingAidAudioProvider.h"
+#include "HfpOffloadAudioProvider.h"
+#include "HfpSoftwareAudioProvider.h"
 #include "LeAudioOffloadAudioProvider.h"
 #include "LeAudioSoftwareAudioProvider.h"
 
@@ -78,6 +81,15 @@
     case SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH:
       provider = ndk::SharedRefBase::make<A2dpOffloadDecodingAudioProvider>();
       break;
+    case SessionType::HFP_SOFTWARE_ENCODING_DATAPATH:
+      provider = ndk::SharedRefBase::make<HfpSoftwareOutputAudioProvider>();
+      break;
+    case SessionType::HFP_SOFTWARE_DECODING_DATAPATH:
+      provider = ndk::SharedRefBase::make<HfpSoftwareInputAudioProvider>();
+      break;
+    case SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH:
+      provider = ndk::SharedRefBase::make<HfpOffloadAudioProvider>();
+      break;
     default:
       provider = nullptr;
       break;
@@ -139,7 +151,14 @@
     SessionType session_type, std::optional<ProviderInfo>* _aidl_return) {
   *_aidl_return = std::nullopt;
 
-  (void)session_type;
+  if (session_type == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+      session_type == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
+    auto& provider_info = _aidl_return->emplace();
+
+    provider_info.name = A2dpOffloadCodecFactory::GetInstance()->name;
+    for (auto codec : A2dpOffloadCodecFactory::GetInstance()->codecs)
+      provider_info.codecInfos.push_back(codec->info);
+  }
 
   return ndk::ScopedAStatus::ok();
 }
diff --git a/bluetooth/audio/aidl/default/HfpOffloadAudioProvider.cpp b/bluetooth/audio/aidl/default/HfpOffloadAudioProvider.cpp
new file mode 100644
index 0000000..7196bb6
--- /dev/null
+++ b/bluetooth/audio/aidl/default/HfpOffloadAudioProvider.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2023 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 "BTAudioProviderHfpHW"
+
+#include "HfpOffloadAudioProvider.h"
+
+#include <BluetoothAudioCodecs.h>
+#include <BluetoothAudioSessionReport.h>
+#include <android-base/logging.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+HfpOffloadAudioProvider::HfpOffloadAudioProvider() {
+  session_type_ = SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH;
+}
+
+bool HfpOffloadAudioProvider::isValid(const SessionType& session_type) {
+  return (session_type == session_type_);
+}
+
+ndk::ScopedAStatus HfpOffloadAudioProvider::startSession(
+    const std::shared_ptr<IBluetoothAudioPort>& host_if,
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
+  if (audio_config.getTag() != AudioConfiguration::hfpConfig) {
+    LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                 << audio_config.toString();
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  return BluetoothAudioProvider::startSession(host_if, audio_config,
+                                              latency_modes, _aidl_return);
+}
+
+ndk::ScopedAStatus HfpOffloadAudioProvider::onSessionReady(
+    DataMQDesc* _aidl_return) {
+  *_aidl_return = DataMQDesc();
+  BluetoothAudioSessionReport::OnSessionStarted(
+      session_type_, stack_iface_, nullptr, *audio_config_, latency_modes_);
+  return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl
diff --git a/bluetooth/audio/aidl/default/HfpOffloadAudioProvider.h b/bluetooth/audio/aidl/default/HfpOffloadAudioProvider.h
new file mode 100644
index 0000000..5526b46
--- /dev/null
+++ b/bluetooth/audio/aidl/default/HfpOffloadAudioProvider.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2023 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 "BluetoothAudioProvider.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+class HfpOffloadAudioProvider : public BluetoothAudioProvider {
+ public:
+  HfpOffloadAudioProvider();
+
+  bool isValid(const SessionType& sessionType) override;
+
+  ndk::ScopedAStatus startSession(
+      const std::shared_ptr<IBluetoothAudioPort>& host_if,
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return);
+
+ private:
+  ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;
+};
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl
diff --git a/bluetooth/audio/aidl/default/HfpSoftwareAudioProvider.cpp b/bluetooth/audio/aidl/default/HfpSoftwareAudioProvider.cpp
new file mode 100644
index 0000000..0f96046
--- /dev/null
+++ b/bluetooth/audio/aidl/default/HfpSoftwareAudioProvider.cpp
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2023 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 "BTAudioProviderHfpSW"
+
+#include "HfpSoftwareAudioProvider.h"
+
+#include <BluetoothAudioCodecs.h>
+#include <BluetoothAudioSessionReport.h>
+#include <android-base/logging.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+static constexpr uint32_t kBufferCount = 2;  // two frame buffer
+
+HfpSoftwareOutputAudioProvider::HfpSoftwareOutputAudioProvider()
+    : HfpSoftwareAudioProvider() {
+  session_type_ = SessionType::HFP_SOFTWARE_ENCODING_DATAPATH;
+}
+
+HfpSoftwareInputAudioProvider::HfpSoftwareInputAudioProvider()
+    : HfpSoftwareAudioProvider() {
+  session_type_ = SessionType::HFP_SOFTWARE_DECODING_DATAPATH;
+}
+
+HfpSoftwareAudioProvider::HfpSoftwareAudioProvider()
+    : BluetoothAudioProvider(), data_mq_(nullptr) {
+}
+
+bool HfpSoftwareAudioProvider::isValid(const SessionType& sessionType) {
+  return (sessionType == session_type_);
+}
+
+ndk::ScopedAStatus HfpSoftwareAudioProvider::startSession(
+    const std::shared_ptr<IBluetoothAudioPort>& host_if,
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
+  if (audio_config.getTag() != AudioConfiguration::pcmConfig) {
+    LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                 << audio_config.toString();
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  const PcmConfiguration& pcm_config =
+      audio_config.get<AudioConfiguration::pcmConfig>();
+  if (!BluetoothAudioCodecs::IsSoftwarePcmConfigurationValid(pcm_config)) {
+    LOG(WARNING) << __func__ << " - Unsupported PCM Configuration="
+                 << pcm_config.toString();
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+
+  bool isValidConfig = true;
+
+  if (pcm_config.bitsPerSample != 16) {
+    isValidConfig = false;
+  }
+
+  if (pcm_config.sampleRateHz != 8000 && pcm_config.sampleRateHz != 16000 &&
+      pcm_config.sampleRateHz != 32000) {
+    isValidConfig = false;
+  }
+
+  if (pcm_config.channelMode != ChannelMode::MONO) {
+    isValidConfig = false;
+  }
+
+  if (pcm_config.dataIntervalUs != 7500) {
+    isValidConfig = false;
+  }
+
+  int bytes_per_sample = pcm_config.bitsPerSample / 8;
+
+  uint32_t data_mq_size = kBufferCount * bytes_per_sample *
+                          (pcm_config.sampleRateHz / 1000) *
+                          pcm_config.dataIntervalUs / 1000;
+  if (!isValidConfig) {
+    LOG(ERROR) << __func__ << "Unexpected audio buffer size: " << data_mq_size
+               << ", SampleRateHz: " << pcm_config.sampleRateHz
+               << ", ChannelMode: " << toString(pcm_config.channelMode)
+               << ", BitsPerSample: "
+               << static_cast<int>(pcm_config.bitsPerSample)
+               << ", BytesPerSample: " << bytes_per_sample
+               << ", DataIntervalUs: " << pcm_config.dataIntervalUs
+               << ", SessionType: " << toString(session_type_);
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+
+  LOG(INFO) << __func__ << " - size of audio buffer " << data_mq_size
+            << " byte(s)";
+
+  std::unique_ptr<DataMQ> temp_data_mq(
+      new DataMQ(data_mq_size, /* EventFlag */ true));
+  if (temp_data_mq == nullptr || !temp_data_mq->isValid()) {
+    ALOGE_IF(!temp_data_mq, "failed to allocate data MQ");
+    ALOGE_IF(temp_data_mq && !temp_data_mq->isValid(), "data MQ is invalid");
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  data_mq_ = std::move(temp_data_mq);
+
+  return BluetoothAudioProvider::startSession(host_if, audio_config,
+                                              latency_modes, _aidl_return);
+}
+
+ndk::ScopedAStatus HfpSoftwareAudioProvider::onSessionReady(
+    DataMQDesc* _aidl_return) {
+  if (data_mq_ == nullptr || !data_mq_->isValid()) {
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  *_aidl_return = data_mq_->dupeDesc();
+  auto desc = data_mq_->dupeDesc();
+  BluetoothAudioSessionReport::OnSessionStarted(
+      session_type_, stack_iface_, &desc, *audio_config_, latency_modes_);
+  return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl
diff --git a/bluetooth/audio/aidl/default/HfpSoftwareAudioProvider.h b/bluetooth/audio/aidl/default/HfpSoftwareAudioProvider.h
new file mode 100644
index 0000000..ef51065
--- /dev/null
+++ b/bluetooth/audio/aidl/default/HfpSoftwareAudioProvider.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2023 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 "BluetoothAudioProvider.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+class HfpSoftwareAudioProvider : public BluetoothAudioProvider {
+ public:
+  HfpSoftwareAudioProvider();
+
+  bool isValid(const SessionType& sessionType) override;
+
+  ndk::ScopedAStatus startSession(
+      const std::shared_ptr<IBluetoothAudioPort>& host_if,
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return);
+
+ private:
+  // audio data queue for software encoding
+  std::unique_ptr<DataMQ> data_mq_;
+
+  ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;
+};
+
+class HfpSoftwareOutputAudioProvider : public HfpSoftwareAudioProvider {
+ public:
+  HfpSoftwareOutputAudioProvider();
+};
+
+class HfpSoftwareInputAudioProvider : public HfpSoftwareAudioProvider {
+ public:
+  HfpSoftwareInputAudioProvider();
+};
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl
diff --git a/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp b/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
index 40cd821..17be7be 100644
--- a/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
+++ b/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
@@ -33,6 +33,11 @@
 
 using aidl::android::hardware::audio::common::SinkMetadata;
 using aidl::android::hardware::audio::common::SourceMetadata;
+using aidl::android::hardware::bluetooth::audio::A2dpConfiguration;
+using aidl::android::hardware::bluetooth::audio::A2dpConfigurationHint;
+using aidl::android::hardware::bluetooth::audio::A2dpRemoteCapabilities;
+using aidl::android::hardware::bluetooth::audio::A2dpStatus;
+using aidl::android::hardware::bluetooth::audio::A2dpStreamConfiguration;
 using aidl::android::hardware::bluetooth::audio::AacCapabilities;
 using aidl::android::hardware::bluetooth::audio::AacConfiguration;
 using aidl::android::hardware::bluetooth::audio::AptxAdaptiveLeCapabilities;
@@ -48,7 +53,9 @@
 using aidl::android::hardware::bluetooth::audio::CodecConfiguration;
 using aidl::android::hardware::bluetooth::audio::CodecId;
 using aidl::android::hardware::bluetooth::audio::CodecInfo;
+using aidl::android::hardware::bluetooth::audio::CodecParameters;
 using aidl::android::hardware::bluetooth::audio::CodecType;
+using aidl::android::hardware::bluetooth::audio::HfpConfiguration;
 using aidl::android::hardware::bluetooth::audio::IBluetoothAudioPort;
 using aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider;
 using aidl::android::hardware::bluetooth::audio::IBluetoothAudioProviderFactory;
@@ -92,6 +99,13 @@
 static constexpr ChannelMode a2dp_channel_modes[] = {
     ChannelMode::UNKNOWN, ChannelMode::MONO, ChannelMode::STEREO};
 static std::vector<LatencyMode> latency_modes = {LatencyMode::FREE};
+
+// Some valid configs for HFP PCM configuration (software sessions)
+static constexpr int32_t hfp_sample_rates_[] = {8000, 16000, 32000};
+static constexpr int8_t hfp_bits_per_samples_[] = {16};
+static constexpr ChannelMode hfp_channel_modes_[] = {ChannelMode::MONO};
+static constexpr int32_t hfp_data_interval_us_[] = {7500};
+
 // Helpers
 
 template <typename T>
@@ -197,7 +211,8 @@
       case SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
       case SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH:
       case SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH:
-      case SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH: {
+      case SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH:
+      case SessionType::HFP_SOFTWARE_ENCODING_DATAPATH: {
         // All software paths are mandatory and must have exact 1
         // "PcmParameters"
         ASSERT_EQ(temp_provider_capabilities_.size(), 1);
@@ -258,7 +273,8 @@
                     AudioCapabilities::leAudioCapabilities);
         }
       } break;
-      case SessionType::A2DP_SOFTWARE_DECODING_DATAPATH: {
+      case SessionType::A2DP_SOFTWARE_DECODING_DATAPATH:
+      case SessionType::HFP_SOFTWARE_DECODING_DATAPATH: {
         if (!temp_provider_capabilities_.empty()) {
           ASSERT_EQ(temp_provider_capabilities_.size(), 1);
           ASSERT_EQ(temp_provider_capabilities_[0].getTag(),
@@ -298,7 +314,10 @@
                   LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
           session_type ==
               SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH ||
-          session_type == SessionType::A2DP_SOFTWARE_DECODING_DATAPATH);
+          session_type == SessionType::A2DP_SOFTWARE_DECODING_DATAPATH ||
+          session_type == SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH ||
+          session_type == SessionType::HFP_SOFTWARE_DECODING_DATAPATH ||
+          session_type == SessionType::HFP_SOFTWARE_ENCODING_DATAPATH);
       ASSERT_EQ(audio_provider_, nullptr);
     }
   }
@@ -575,6 +594,8 @@
       SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
       SessionType::A2DP_SOFTWARE_DECODING_DATAPATH,
       SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+      SessionType::HFP_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::HFP_SOFTWARE_DECODING_DATAPATH,
   };
 };
 
@@ -692,6 +713,701 @@
   }
 }
 
+class BluetoothAudioProviderAidl : public BluetoothAudioProviderFactoryAidl {
+ protected:
+  std::optional<IBluetoothAudioProviderFactory::ProviderInfo>
+      a2dp_encoding_provider_info_{};
+  std::optional<IBluetoothAudioProviderFactory::ProviderInfo>
+      a2dp_decoding_provider_info_{};
+  std::shared_ptr<IBluetoothAudioProvider> a2dp_encoding_provider_{nullptr};
+  std::shared_ptr<IBluetoothAudioProvider> a2dp_decoding_provider_{nullptr};
+
+ public:
+  void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    audio_port_ = ndk::SharedRefBase::make<BluetoothAudioPort>();
+
+    (void)provider_factory_->getProviderInfo(
+        SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+        &a2dp_encoding_provider_info_);
+
+    (void)provider_factory_->getProviderInfo(
+        SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+        &a2dp_decoding_provider_info_);
+
+    (void)provider_factory_->openProvider(
+        SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+        &a2dp_encoding_provider_);
+
+    (void)provider_factory_->openProvider(
+        SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+        &a2dp_decoding_provider_);
+  }
+};
+
+/**
+ * Calling parseA2dpConfiguration on a session of a different type than
+ * A2DP_HARDWARE_OFFLOAD_(ENCODING|DECODING)_DATAPATH must fail.
+ */
+TEST_P(BluetoothAudioProviderAidl, parseA2dpConfiguration_invalidSessionType) {
+  static constexpr SessionType kInvalidSessionTypes[] = {
+      SessionType::UNKNOWN,
+      SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH,
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+      SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+      SessionType::A2DP_SOFTWARE_DECODING_DATAPATH,
+  };
+
+  for (auto session_type : kInvalidSessionTypes) {
+    // Open a BluetoothAudioProvider instance of the selected session type.
+    // Skip validation if the provider cannot be opened.
+    std::shared_ptr<IBluetoothAudioProvider> provider{nullptr};
+    (void)provider_factory_->openProvider(session_type, &provider);
+    if (provider == nullptr) {
+      continue;
+    }
+
+    // parseA2dpConfiguration must fail without returning an A2dpStatus.
+    CodecId codec_id(CodecId::A2dp::SBC);
+    CodecParameters codec_parameters;
+    A2dpStatus a2dp_status = A2dpStatus::OK;
+    auto aidl_retval = provider->parseA2dpConfiguration(
+        codec_id, std::vector<uint8_t>{}, &codec_parameters, &a2dp_status);
+    EXPECT_FALSE(aidl_retval.isOk());
+  }
+}
+
+/**
+ * Calling parseA2dpConfiguration with an unknown codec must fail
+ * with the A2dpStatus code INVALID_CODEC_TYPE or NOT_SUPPORTED_CODEC_TYPE.
+ */
+TEST_P(BluetoothAudioProviderAidl,
+       parseA2dpConfiguration_unsupportedCodecType) {
+  CodecId unsupported_core_id(CodecId::Core::CVSD);
+  CodecId unsupported_vendor_id(
+      CodecId::Vendor(0xFCB1, 0x42));  // Google Codec #42
+
+  for (auto& provider : {a2dp_encoding_provider_, a2dp_decoding_provider_}) {
+    if (provider == nullptr) {
+      continue;
+    }
+
+    CodecParameters codec_parameters;
+    A2dpStatus a2dp_status = A2dpStatus::OK;
+    ::ndk::ScopedAStatus aidl_retval;
+
+    // Test with two invalid codec identifiers: vendor or core.
+    aidl_retval = provider->parseA2dpConfiguration(
+        unsupported_core_id, std::vector<uint8_t>{}, &codec_parameters,
+        &a2dp_status);
+    EXPECT_TRUE(!aidl_retval.isOk() ||
+                a2dp_status == A2dpStatus::NOT_SUPPORTED_CODEC_TYPE);
+
+    aidl_retval = provider->parseA2dpConfiguration(
+        unsupported_vendor_id, std::vector<uint8_t>{}, &codec_parameters,
+        &a2dp_status);
+    EXPECT_TRUE(!aidl_retval.isOk() ||
+                a2dp_status == A2dpStatus::NOT_SUPPORTED_CODEC_TYPE);
+  }
+}
+
+/**
+ * Calling parseA2dpConfiguration with a known codec and invalid configuration
+ * must fail with an A2dpStatus code different from INVALID_CODEC_TYPE or
+ * NOT_SUPPORTED_CODEC_TYPE.
+ */
+TEST_P(BluetoothAudioProviderAidl,
+       parseA2dpConfiguration_invalidConfiguration) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    CodecParameters codec_parameters;
+    A2dpStatus a2dp_status = A2dpStatus::OK;
+    ::ndk::ScopedAStatus aidl_retval;
+
+    // Test with the first available codec in the provider info for testing.
+    // The test runs with an empty parameters array, anything more specific
+    // would need understanding the codec.
+    aidl_retval = provider->parseA2dpConfiguration(
+        provider_info->codecInfos[0].id, std::vector<uint8_t>{},
+        &codec_parameters, &a2dp_status);
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(a2dp_status != A2dpStatus::OK &&
+                a2dp_status != A2dpStatus::NOT_SUPPORTED_CODEC_TYPE &&
+                a2dp_status != A2dpStatus::INVALID_CODEC_TYPE);
+  }
+}
+
+/**
+ * Calling parseA2dpConfiguration with a known codec and valid parameters
+ * must return with A2dpStatus OK.
+ */
+TEST_P(BluetoothAudioProviderAidl, parseA2dpConfiguration_valid) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    CodecParameters codec_parameters;
+    A2dpStatus a2dp_status = A2dpStatus::OK;
+    ::ndk::ScopedAStatus aidl_retval;
+
+    // Test with the first available codec in the provider info for testing.
+    // To get a valid configuration (the capabilities array in the provider
+    // info is not a selection), getA2dpConfiguration is used with the
+    // selected codec parameters as input.
+    auto const& codec_info = provider_info->codecInfos[0];
+    auto transport = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+    A2dpRemoteCapabilities remote_capabilities(/*seid*/ 0, codec_info.id,
+                                               transport.capabilities);
+    std::optional<A2dpConfiguration> configuration;
+    aidl_retval = provider->getA2dpConfiguration(
+        std::vector<A2dpRemoteCapabilities>{remote_capabilities},
+        A2dpConfigurationHint(), &configuration);
+    ASSERT_TRUE(aidl_retval.isOk());
+    ASSERT_TRUE(configuration.has_value());
+
+    aidl_retval = provider->parseA2dpConfiguration(
+        configuration->id, configuration->configuration, &codec_parameters,
+        &a2dp_status);
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_TRUE(a2dp_status == A2dpStatus::OK);
+    EXPECT_EQ(codec_parameters, configuration->parameters);
+  }
+}
+
+/**
+ * Calling getA2dpConfiguration on a session of a different type than
+ * A2DP_HARDWARE_OFFLOAD_(ENCODING|DECODING)_DATAPATH must fail.
+ */
+TEST_P(BluetoothAudioProviderAidl, getA2dpConfiguration_invalidSessionType) {
+  static constexpr SessionType kInvalidSessionTypes[] = {
+      SessionType::UNKNOWN,
+      SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH,
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH,
+      SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH,
+      SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH,
+      SessionType::A2DP_SOFTWARE_DECODING_DATAPATH,
+  };
+
+  for (auto session_type : kInvalidSessionTypes) {
+    // Open a BluetoothAudioProvider instance of the selected session type.
+    // Skip validation if the provider cannot be opened.
+    std::shared_ptr<IBluetoothAudioProvider> provider{nullptr};
+    auto aidl_retval = provider_factory_->openProvider(session_type, &provider);
+    if (provider == nullptr) {
+      continue;
+    }
+
+    // getA2dpConfiguration must fail without returning a configuration.
+    std::optional<A2dpConfiguration> configuration;
+    aidl_retval =
+        provider->getA2dpConfiguration(std::vector<A2dpRemoteCapabilities>{},
+                                       A2dpConfigurationHint(), &configuration);
+    EXPECT_FALSE(aidl_retval.isOk());
+  }
+}
+
+/**
+ * Calling getA2dpConfiguration with empty or unknown remote capabilities
+ * must return an empty configuration.
+ */
+TEST_P(BluetoothAudioProviderAidl,
+       getA2dpConfiguration_unknownRemoteCapabilities) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    std::optional<A2dpConfiguration> configuration;
+    ::ndk::ScopedAStatus aidl_retval;
+
+    // Test with empty remote capabilities.
+    aidl_retval =
+        provider->getA2dpConfiguration(std::vector<A2dpRemoteCapabilities>{},
+                                       A2dpConfigurationHint(), &configuration);
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_FALSE(configuration.has_value());
+
+    // Test with unknown remote capabilities.
+    A2dpRemoteCapabilities unknown_core_remote_capabilities(
+        /*seid*/ 0, CodecId::Core::CVSD, std::vector<uint8_t>{1, 2, 3});
+    A2dpRemoteCapabilities unknown_vendor_remote_capabilities(
+        /*seid*/ 1,
+        /* Google Codec #42 */ CodecId::Vendor(0xFCB1, 0x42),
+        std::vector<uint8_t>{1, 2, 3});
+    aidl_retval = provider->getA2dpConfiguration(
+        std::vector<A2dpRemoteCapabilities>{
+            unknown_core_remote_capabilities,
+            unknown_vendor_remote_capabilities,
+        },
+        A2dpConfigurationHint(), &configuration);
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_FALSE(configuration.has_value());
+  }
+}
+
+/**
+ * Calling getA2dpConfiguration with invalid remote capabilities
+ * must return an empty configuration.
+ */
+TEST_P(BluetoothAudioProviderAidl,
+       getA2dpConfiguration_invalidRemoteCapabilities) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    std::optional<A2dpConfiguration> configuration;
+    ::ndk::ScopedAStatus aidl_retval;
+
+    // Use the first available codec in the provider info for testing.
+    // The capabilities are modified to make them invalid.
+    auto const& codec_info = provider_info->codecInfos[0];
+    auto transport = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+    std::vector<uint8_t> invalid_capabilities = transport.capabilities;
+    invalid_capabilities.push_back(0x42);  // adding bytes should be invalid.
+    aidl_retval = provider->getA2dpConfiguration(
+        std::vector<A2dpRemoteCapabilities>{
+            A2dpRemoteCapabilities(/*seid*/ 0, codec_info.id,
+                                   std::vector<uint8_t>()),
+            A2dpRemoteCapabilities(/*seid*/ 1, codec_info.id,
+                                   invalid_capabilities),
+        },
+        A2dpConfigurationHint(), &configuration);
+    ASSERT_TRUE(aidl_retval.isOk());
+    EXPECT_FALSE(configuration.has_value());
+  }
+}
+
+/**
+ * Calling getA2dpConfiguration with valid remote capabilities
+ * must return a valid configuration. The selected parameters must
+ * be contained in the original capabilities. The returned configuration
+ * must match the returned parameters. The returned SEID must match the
+ * input SEID.
+ */
+TEST_P(BluetoothAudioProviderAidl,
+       getA2dpConfiguration_validRemoteCapabilities) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    // Test with all available codecs in the provider info.
+    for (auto const& codec_info : provider_info->codecInfos) {
+      auto a2dp_info = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+      std::optional<A2dpConfiguration> configuration{};
+      ::ndk::ScopedAStatus aidl_retval;
+
+      aidl_retval = provider->getA2dpConfiguration(
+          std::vector<A2dpRemoteCapabilities>{
+              A2dpRemoteCapabilities(/*seid*/ 42, codec_info.id,
+                                     a2dp_info.capabilities),
+          },
+          A2dpConfigurationHint(), &configuration);
+
+      ASSERT_TRUE(aidl_retval.isOk());
+      ASSERT_TRUE(configuration.has_value());
+
+      // Returned configuration must have the same codec id
+      // as the remote capability.
+      EXPECT_EQ(configuration->id, codec_info.id);
+
+      // Returned configuration must have the same SEID
+      // as the remote capability.
+      EXPECT_EQ(configuration->remoteSeid, 42);
+
+      // Returned codec parameters must be in the range of input
+      // parameters.
+      EXPECT_NE(
+          std::find(a2dp_info.channelMode.begin(), a2dp_info.channelMode.end(),
+                    configuration->parameters.channelMode),
+          a2dp_info.channelMode.end());
+      EXPECT_NE(std::find(a2dp_info.samplingFrequencyHz.begin(),
+                          a2dp_info.samplingFrequencyHz.end(),
+                          configuration->parameters.samplingFrequencyHz),
+                a2dp_info.samplingFrequencyHz.end());
+      EXPECT_NE(std::find(a2dp_info.bitdepth.begin(), a2dp_info.bitdepth.end(),
+                          configuration->parameters.bitdepth),
+                a2dp_info.bitdepth.end());
+      EXPECT_EQ(a2dp_info.lossless, configuration->parameters.lossless);
+      EXPECT_TRUE(configuration->parameters.minBitrate <=
+                  configuration->parameters.maxBitrate);
+
+      // Returned configuration must be parsable by parseA2dpParameters
+      // and match the codec parameters.
+      CodecParameters codec_parameters;
+      A2dpStatus a2dp_status = A2dpStatus::OK;
+      aidl_retval = provider->parseA2dpConfiguration(
+          configuration->id, configuration->configuration, &codec_parameters,
+          &a2dp_status);
+      ASSERT_TRUE(aidl_retval.isOk());
+      EXPECT_TRUE(a2dp_status == A2dpStatus::OK);
+      EXPECT_EQ(codec_parameters, configuration->parameters);
+    }
+  }
+}
+
+/**
+ * Calling getA2dpConfiguration with valid remote capabilities
+ * with various hinted codec ids.
+ */
+TEST_P(BluetoothAudioProviderAidl, getA2dpConfiguration_hintCodecId) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    // Build the remote capabilities with all supported codecs.
+    std::vector<A2dpRemoteCapabilities> remote_capabilities;
+    for (size_t n = 0; n < provider_info->codecInfos.size(); n++) {
+      auto const& codec_info = provider_info->codecInfos[n];
+      auto a2dp_info = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+      remote_capabilities.push_back(A2dpRemoteCapabilities(
+          /*seid*/ n, codec_info.id, a2dp_info.capabilities));
+    }
+
+    // Test with all supported codec identifiers,
+    for (auto const& codec_info : provider_info->codecInfos) {
+      std::optional<A2dpConfiguration> configuration{};
+      ::ndk::ScopedAStatus aidl_retval;
+
+      A2dpConfigurationHint hint;
+      hint.codecId = codec_info.id;
+
+      aidl_retval = provider->getA2dpConfiguration(remote_capabilities, hint,
+                                                   &configuration);
+
+      ASSERT_TRUE(aidl_retval.isOk());
+      ASSERT_TRUE(configuration.has_value());
+      EXPECT_EQ(configuration->id, codec_info.id);
+    }
+
+    // Test with unknown codec identifiers: either core or vendor.
+    for (auto& codec_id :
+         {CodecId(CodecId::Core::CVSD),
+          CodecId(CodecId::Vendor(0xFCB1, 0x42)) /*Google Codec #42*/}) {
+      std::optional<A2dpConfiguration> configuration{};
+      ::ndk::ScopedAStatus aidl_retval;
+
+      A2dpConfigurationHint hint;
+      hint.codecId = codec_id;
+
+      aidl_retval = provider->getA2dpConfiguration(remote_capabilities, hint,
+                                                   &configuration);
+
+      ASSERT_TRUE(aidl_retval.isOk());
+      ASSERT_TRUE(configuration.has_value());
+      EXPECT_NE(configuration->id, codec_id);
+    }
+  }
+}
+
+/**
+ * Calling getA2dpConfiguration with valid remote capabilities
+ * with various hinted channel modes.
+ */
+TEST_P(BluetoothAudioProviderAidl, getA2dpConfiguration_hintChannelMode) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    // Test with all available codecs in the provider info.
+    for (auto const& codec_info : provider_info->codecInfos) {
+      auto a2dp_info = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+      std::optional<A2dpConfiguration> configuration{};
+      ::ndk::ScopedAStatus aidl_retval;
+
+      for (auto& channel_mode :
+           {ChannelMode::STEREO, ChannelMode::MONO, ChannelMode::DUALMONO}) {
+        // Add the hint for the channel mode.
+        A2dpConfigurationHint hint;
+        auto& codec_parameters = hint.codecParameters.emplace();
+        codec_parameters.channelMode = channel_mode;
+
+        aidl_retval = provider->getA2dpConfiguration(
+            std::vector<A2dpRemoteCapabilities>{
+                A2dpRemoteCapabilities(/*seid*/ 42, codec_info.id,
+                                       a2dp_info.capabilities),
+            },
+            hint, &configuration);
+
+        ASSERT_TRUE(aidl_retval.isOk());
+        ASSERT_TRUE(configuration.has_value());
+
+        // The hint must be ignored if the channel mode is not supported
+        // by the codec, and applied otherwise.
+        ASSERT_EQ(configuration->parameters.channelMode == channel_mode,
+                  std::find(a2dp_info.channelMode.begin(),
+                            a2dp_info.channelMode.end(),
+                            channel_mode) != a2dp_info.channelMode.end());
+      }
+    }
+  }
+}
+
+/**
+ * Calling getA2dpConfiguration with valid remote capabilities
+ * with various hinted sampling frequencies.
+ */
+TEST_P(BluetoothAudioProviderAidl,
+       getA2dpConfiguration_hintSamplingFrequencyHz) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    // Test with all available codecs in the provider info.
+    for (auto const& codec_info : provider_info->codecInfos) {
+      auto a2dp_info = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+      std::optional<A2dpConfiguration> configuration{};
+      ::ndk::ScopedAStatus aidl_retval;
+
+      for (auto& sampling_frequency_hz : {
+               0,
+               1,
+               8000,
+               16000,
+               24000,
+               32000,
+               44100,
+               48000,
+               88200,
+               96000,
+               176400,
+               192000,
+           }) {
+        // Add the hint for the sampling frequency.
+        A2dpConfigurationHint hint;
+        auto& codec_parameters = hint.codecParameters.emplace();
+        codec_parameters.samplingFrequencyHz = sampling_frequency_hz;
+
+        aidl_retval = provider->getA2dpConfiguration(
+            std::vector<A2dpRemoteCapabilities>{
+                A2dpRemoteCapabilities(/*seid*/ 42, codec_info.id,
+                                       a2dp_info.capabilities),
+            },
+            hint, &configuration);
+
+        ASSERT_TRUE(aidl_retval.isOk());
+        ASSERT_TRUE(configuration.has_value());
+
+        // The hint must be ignored if the sampling frequency is not supported
+        // by the codec, and applied otherwise.
+        ASSERT_EQ(configuration->parameters.samplingFrequencyHz ==
+                      sampling_frequency_hz,
+                  std::find(a2dp_info.samplingFrequencyHz.begin(),
+                            a2dp_info.samplingFrequencyHz.end(),
+                            sampling_frequency_hz) !=
+                      a2dp_info.samplingFrequencyHz.end());
+      }
+    }
+  }
+}
+
+/**
+ * Calling getA2dpConfiguration with valid remote capabilities
+ * with various hinted sampling bit-depths.
+ */
+TEST_P(BluetoothAudioProviderAidl, getA2dpConfiguration_hintBitdepth) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    // Test with all available codecs in the provider info.
+    for (auto const& codec_info : provider_info->codecInfos) {
+      auto a2dp_info = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+      std::optional<A2dpConfiguration> configuration{};
+      ::ndk::ScopedAStatus aidl_retval;
+
+      for (auto& bitdepth : {0, 1, 16, 24, 32}) {
+        // Add the hint for the bit depth.
+        A2dpConfigurationHint hint;
+        auto& codec_parameters = hint.codecParameters.emplace();
+        codec_parameters.bitdepth = bitdepth;
+
+        aidl_retval = provider->getA2dpConfiguration(
+            std::vector<A2dpRemoteCapabilities>{
+                A2dpRemoteCapabilities(/*seid*/ 42, codec_info.id,
+                                       a2dp_info.capabilities),
+            },
+            hint, &configuration);
+
+        ASSERT_TRUE(aidl_retval.isOk());
+        ASSERT_TRUE(configuration.has_value());
+
+        // The hint must be ignored if the bitdepth is not supported
+        // by the codec, and applied otherwise.
+        ASSERT_EQ(
+            configuration->parameters.bitdepth == bitdepth,
+            std::find(a2dp_info.bitdepth.begin(), a2dp_info.bitdepth.end(),
+                      bitdepth) != a2dp_info.bitdepth.end());
+      }
+    }
+  }
+}
+
+/**
+ * Calling startSession with an unknown codec id must fail.
+ */
+TEST_P(BluetoothAudioProviderAidl, startSession_unknownCodecId) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    for (auto& codec_id :
+         {CodecId(CodecId::Core::CVSD),
+          CodecId(CodecId::Vendor(0xFCB1, 0x42) /*Google Codec #42*/)}) {
+      A2dpStreamConfiguration a2dp_config;
+      DataMQDesc data_mq_desc;
+
+      a2dp_config.codecId = codec_id;
+      a2dp_config.configuration = std::vector<uint8_t>{1, 2, 3};
+
+      auto aidl_retval =
+          provider->startSession(audio_port_, AudioConfiguration(a2dp_config),
+                                 std::vector<LatencyMode>{}, &data_mq_desc);
+
+      EXPECT_FALSE(aidl_retval.isOk());
+    }
+  }
+}
+
+/**
+ * Calling startSession with a known codec and a valid configuration
+ * must succeed.
+ */
+TEST_P(BluetoothAudioProviderAidl, startSession_valid) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    // Use the first available codec in the provider info for testing.
+    // To get a valid configuration (the capabilities array in the provider
+    // info is not a selection), getA2dpConfiguration is used with the
+    // selected codec parameters as input.
+    auto const& codec_info = provider_info->codecInfos[0];
+    auto a2dp_info = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+    ::ndk::ScopedAStatus aidl_retval;
+    A2dpRemoteCapabilities remote_capabilities(/*seid*/ 0, codec_info.id,
+                                               a2dp_info.capabilities);
+    std::optional<A2dpConfiguration> configuration;
+    aidl_retval = provider->getA2dpConfiguration(
+        std::vector<A2dpRemoteCapabilities>{remote_capabilities},
+        A2dpConfigurationHint(), &configuration);
+    ASSERT_TRUE(aidl_retval.isOk());
+    ASSERT_TRUE(configuration.has_value());
+
+    // Build the stream configuration.
+    A2dpStreamConfiguration a2dp_config;
+    DataMQDesc data_mq_desc;
+
+    a2dp_config.codecId = codec_info.id;
+    a2dp_config.configuration = configuration->configuration;
+
+    aidl_retval =
+        provider->startSession(audio_port_, AudioConfiguration(a2dp_config),
+                               std::vector<LatencyMode>{}, &data_mq_desc);
+
+    EXPECT_TRUE(aidl_retval.isOk());
+  }
+}
+
+/**
+ * Calling startSession with a known codec but an invalid configuration
+ * must fail.
+ */
+TEST_P(BluetoothAudioProviderAidl, startSession_invalidConfiguration) {
+  for (auto& [provider, provider_info] :
+       {std::pair(a2dp_encoding_provider_, a2dp_encoding_provider_info_),
+        std::pair(a2dp_decoding_provider_, a2dp_decoding_provider_info_)}) {
+    if (provider == nullptr || !provider_info.has_value() ||
+        provider_info->codecInfos.empty()) {
+      continue;
+    }
+
+    // Use the first available codec in the provider info for testing.
+    // To get a valid configuration (the capabilities array in the provider
+    // info is not a selection), getA2dpConfiguration is used with the
+    // selected codec parameters as input.
+    ::ndk::ScopedAStatus aidl_retval;
+    auto const& codec_info = provider_info->codecInfos[0];
+    auto a2dp_info = codec_info.transport.get<CodecInfo::Transport::a2dp>();
+    A2dpRemoteCapabilities remote_capabilities(/*seid*/ 0, codec_info.id,
+                                               a2dp_info.capabilities);
+    std::optional<A2dpConfiguration> configuration;
+    aidl_retval = provider->getA2dpConfiguration(
+        std::vector<A2dpRemoteCapabilities>{remote_capabilities},
+        A2dpConfigurationHint(), &configuration);
+    ASSERT_TRUE(aidl_retval.isOk());
+    ASSERT_TRUE(configuration.has_value());
+
+    // Build the stream configuration but edit the configuration bytes
+    // to make it invalid.
+    A2dpStreamConfiguration a2dp_config;
+    DataMQDesc data_mq_desc;
+
+    a2dp_config.codecId = codec_info.id;
+    a2dp_config.configuration = configuration->configuration;
+    a2dp_config.configuration.push_back(42);
+
+    aidl_retval =
+        provider->startSession(audio_port_, AudioConfiguration(a2dp_config),
+                               std::vector<LatencyMode>{}, &data_mq_desc);
+
+    EXPECT_FALSE(aidl_retval.isOk());
+  }
+}
+
 /**
  * openProvider A2DP_SOFTWARE_ENCODING_DATAPATH
  */
@@ -751,6 +1467,137 @@
 }
 
 /**
+ * openProvider HFP_SOFTWARE_ENCODING_DATAPATH
+ */
+class BluetoothAudioProviderHfpSoftwareEncodingAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(SessionType::HFP_SOFTWARE_ENCODING_DATAPATH);
+    OpenProviderHelper(SessionType::HFP_SOFTWARE_ENCODING_DATAPATH);
+    ASSERT_NE(audio_provider_, nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  bool OpenSession(int32_t sample_rate, int8_t bits_per_sample,
+                      ChannelMode channel_mode, int32_t data_interval_us) {
+    PcmConfiguration pcm_config{
+        .sampleRateHz = sample_rate,
+        .channelMode = channel_mode,
+        .bitsPerSample = bits_per_sample,
+        .dataIntervalUs = data_interval_us,
+    };
+    // Checking against provider capability from getProviderCapabilities
+    // For HFP software, it's
+    // BluetoothAudioCodecs::GetSoftwarePcmCapabilities();
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(pcm_config), latency_modes, &mq_desc);
+    DataMQ data_mq(mq_desc);
+
+    if (!aidl_retval.isOk()) return false;
+    if (!data_mq.isValid()) return false;
+    return true;
+  }
+};
+
+/**
+ * Test whether we can open a provider of type
+ */
+TEST_P(BluetoothAudioProviderHfpSoftwareEncodingAidl,
+       OpenHfpSoftwareEncodingProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::HFP_SOFTWARE_ENCODING_DATAPATH can be started and stopped with
+ * different PCM config
+ */
+TEST_P(BluetoothAudioProviderHfpSoftwareEncodingAidl,
+       StartAndEndHfpEncodingSoftwareSessionWithPossiblePcmConfig) {
+  for (auto sample_rate : hfp_sample_rates_) {
+    for (auto bits_per_sample : hfp_bits_per_samples_) {
+      for (auto channel_mode : hfp_channel_modes_) {
+        for (auto data_interval_us: hfp_data_interval_us_) {
+          EXPECT_TRUE(OpenSession(sample_rate, bits_per_sample,
+                      channel_mode, data_interval_us));
+          EXPECT_TRUE(audio_provider_->endSession().isOk());
+        }
+      }
+    }
+  }
+}
+
+/**
+ * openProvider HFP_SOFTWARE_DECODING_DATAPATH
+ */
+class BluetoothAudioProviderHfpSoftwareDecodingAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    GetProviderCapabilitiesHelper(SessionType::HFP_SOFTWARE_DECODING_DATAPATH);
+    OpenProviderHelper(SessionType::HFP_SOFTWARE_DECODING_DATAPATH);
+    ASSERT_NE(audio_provider_, nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  bool OpenSession(int32_t sample_rate, int8_t bits_per_sample,
+                      ChannelMode channel_mode, int32_t data_interval_us) {
+    PcmConfiguration pcm_config{
+        .sampleRateHz = sample_rate,
+        .channelMode = channel_mode,
+        .bitsPerSample = bits_per_sample,
+        .dataIntervalUs = data_interval_us,
+    };
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(pcm_config), latency_modes, &mq_desc);
+    DataMQ data_mq(mq_desc);
+
+    if (!aidl_retval.isOk()) return false;
+    if (!data_mq.isValid()) return false;
+    return true;
+  }
+};
+
+/**
+ * Test whether we can open a provider of type
+ */
+TEST_P(BluetoothAudioProviderHfpSoftwareDecodingAidl,
+       OpenHfpSoftwareDecodingProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::HFP_SOFTWARE_DECODING_DATAPATH can be started and stopped with
+ * different PCM config
+ */
+TEST_P(BluetoothAudioProviderHfpSoftwareDecodingAidl,
+       StartAndEndHfpDecodingSoftwareSessionWithPossiblePcmConfig) {
+  for (auto sample_rate : hfp_sample_rates_) {
+    for (auto bits_per_sample : hfp_bits_per_samples_) {
+      for (auto channel_mode : hfp_channel_modes_) {
+        for (auto data_interval_us: hfp_data_interval_us_) {
+            EXPECT_TRUE(OpenSession(sample_rate, bits_per_sample,
+                        channel_mode, data_interval_us));
+            EXPECT_TRUE(audio_provider_->endSession().isOk());
+        }
+      }
+    }
+  }
+}
+
+/**
  * openProvider A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH
  */
 class BluetoothAudioProviderA2dpEncodingHardwareAidl
@@ -1003,6 +1850,62 @@
 }
 
 /**
+ * openProvider HFP_HARDWARE_OFFLOAD_DATAPATH
+ */
+class BluetoothAudioProviderHfpHardwareAidl
+    : public BluetoothAudioProviderFactoryAidl {
+ public:
+  virtual void SetUp() override {
+    BluetoothAudioProviderFactoryAidl::SetUp();
+    OpenProviderHelper(SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH);
+    // Can open or empty capability
+    ASSERT_TRUE(temp_provider_capabilities_.empty() ||
+                audio_provider_ != nullptr);
+  }
+
+  virtual void TearDown() override {
+    audio_port_ = nullptr;
+    audio_provider_ = nullptr;
+    BluetoothAudioProviderFactoryAidl::TearDown();
+  }
+
+  bool OpenSession(CodecId codec_id, int connection_handle, bool nrec,
+                      bool controller_codec) {
+    // Check if can open session with a Hfp configuration
+    HfpConfiguration hfp_configuration{
+        .codecId = codec_id,
+        .connectionHandle = connection_handle,
+        .nrec = nrec,
+        .controllerCodec = controller_codec,
+    };
+    DataMQDesc mq_desc;
+    auto aidl_retval = audio_provider_->startSession(
+        audio_port_, AudioConfiguration(hfp_configuration), latency_modes,
+        &mq_desc);
+
+    // Only check if aidl is ok to start session.
+    return aidl_retval.isOk();
+  }
+};
+
+/**
+ * Test whether we can open a provider of type
+ */
+TEST_P(BluetoothAudioProviderHfpHardwareAidl, OpenHfpHardwareProvider) {}
+
+/**
+ * Test whether each provider of type
+ * SessionType::HFP_SOFTWARE_DECODING_DATAPATH can be started and stopped with
+ * different HFP config
+ */
+TEST_P(BluetoothAudioProviderHfpHardwareAidl,
+       StartAndEndHfpHardwareSessionWithPossiblePcmConfig) {
+  // Try to open with a sample configuration
+  EXPECT_TRUE(OpenSession(CodecId::Core::CVSD, 6, false, true));
+  EXPECT_TRUE(audio_provider_->endSession().isOk());
+}
+
+/**
  * openProvider HEARING_AID_SOFTWARE_ENCODING_DATAPATH
  */
 class BluetoothAudioProviderHearingAidSoftwareAidl
@@ -2191,6 +3094,12 @@
                              IBluetoothAudioProviderFactory::descriptor)),
                          android::PrintInstanceNameToString);
 
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BluetoothAudioProviderAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance, BluetoothAudioProviderAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
     BluetoothAudioProviderA2dpEncodingSoftwareAidl);
 INSTANTIATE_TEST_SUITE_P(PerInstance,
@@ -2279,6 +3188,29 @@
                              IBluetoothAudioProviderFactory::descriptor)),
                          android::PrintInstanceNameToString);
 
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderHfpHardwareAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance, BluetoothAudioProviderHfpHardwareAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderHfpSoftwareDecodingAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderHfpSoftwareDecodingAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    BluetoothAudioProviderHfpSoftwareEncodingAidl);
+INSTANTIATE_TEST_SUITE_P(PerInstance,
+                         BluetoothAudioProviderHfpSoftwareEncodingAidl,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothAudioProviderFactory::descriptor)),
+                         android::PrintInstanceNameToString);
+
 int main(int argc, char** argv) {
   ::testing::InitGoogleTest(&argc, argv);
   ABinderProcess_setThreadPoolMaxThreadCount(1);
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp b/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
index b4cba49..6e15b3b 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
@@ -41,7 +41,7 @@
 namespace audio {
 
 static const PcmCapabilities kDefaultSoftwarePcmCapabilities = {
-    .sampleRateHz = {16000, 24000, 32000, 44100, 48000, 88200, 96000},
+    .sampleRateHz = {8000, 16000, 24000, 32000, 44100, 48000, 88200, 96000},
     .channelMode = {ChannelMode::MONO, ChannelMode::STEREO},
     .bitsPerSample = {16, 24, 32},
     .dataIntervalUs = {},
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp b/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp
index c283148..3519ace 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp
@@ -95,6 +95,8 @@
       case SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(CodecConfiguration{});
+      case SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH:
+        return AudioConfiguration(HfpConfiguration{});
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(LeAudioConfiguration{});
@@ -154,6 +156,7 @@
        session_type_ ==
            SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH ||
+       session_type_ == SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH ||
        (data_mq_ != nullptr && data_mq_->isValid()));
   return stack_iface_ != nullptr && is_mq_valid && audio_config_ != nullptr;
 }
@@ -275,6 +278,8 @@
   bool is_software_session =
       (session_type_ == SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH ||
        session_type_ == SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH ||
+       session_type_ == SessionType::HFP_SOFTWARE_ENCODING_DATAPATH ||
+       session_type_ == SessionType::HFP_SOFTWARE_DECODING_DATAPATH ||
        session_type_ == SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH ||
        session_type_ == SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH ||
        session_type_ ==
@@ -283,6 +288,8 @@
   bool is_offload_a2dp_session =
       (session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH);
+  bool is_offload_hfp_session =
+      session_type_ == SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH;
   bool is_offload_le_audio_unicast_session =
       (session_type_ ==
            SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
@@ -297,7 +304,11 @@
        audio_config_tag == AudioConfiguration::pcmConfig);
   bool is_a2dp_offload_audio_config =
       (is_offload_a2dp_session &&
-       audio_config_tag == AudioConfiguration::a2dpConfig);
+       (audio_config_tag == AudioConfiguration::a2dp ||
+        audio_config_tag == AudioConfiguration::a2dpConfig));
+  bool is_hfp_offload_audio_config =
+      (is_offload_hfp_session &&
+       audio_config_tag == AudioConfiguration::hfpConfig);
   bool is_le_audio_offload_unicast_audio_config =
       (is_offload_le_audio_unicast_session &&
        audio_config_tag == AudioConfiguration::leAudioConfig);
@@ -305,6 +316,7 @@
       (is_offload_le_audio_broadcast_session &&
        audio_config_tag == AudioConfiguration::leAudioBroadcastConfig);
   if (!is_software_audio_config && !is_a2dp_offload_audio_config &&
+      !is_hfp_offload_audio_config &&
       !is_le_audio_offload_unicast_audio_config &&
       !is_le_audio_offload_broadcast_audio_config) {
     return false;
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h b/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h
index 7ae0353..5263222 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h
@@ -84,6 +84,8 @@
       case SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(CodecConfiguration{});
+      case SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH:
+        return AudioConfiguration(HfpConfiguration{});
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(LeAudioConfiguration{});
diff --git a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
index 3d92ee7..fd12a6e 100644
--- a/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
+++ b/bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp
@@ -467,6 +467,8 @@
       hidl_audio_config.codecConfig(to_hidl_codec_config_2_0(
           audio_config.get<AudioConfiguration::a2dpConfig>()));
       break;
+    case AudioConfiguration::a2dp:
+      break;
     case AudioConfiguration::leAudioConfig:
       hidl_audio_config.leAudioCodecConfig(to_hidl_leaudio_config_2_1(
           audio_config.get<AudioConfiguration::leAudioConfig>()));
@@ -475,6 +477,8 @@
       hidl_audio_config.leAudioCodecConfig(to_hidl_leaudio_broadcast_config_2_1(
           audio_config.get<AudioConfiguration::leAudioBroadcastConfig>()));
       break;
+    default:
+      LOG(FATAL) << __func__ << ": unexpected AudioConfiguration";
   }
   return hidl_audio_config;
 }
diff --git a/bluetooth/finder/aidl/default/bluetooth-finder-service-default.rc b/bluetooth/finder/aidl/default/bluetooth-finder-service-default.rc
index fea07f0..64bbf09 100644
--- a/bluetooth/finder/aidl/default/bluetooth-finder-service-default.rc
+++ b/bluetooth/finder/aidl/default/bluetooth-finder-service-default.rc
@@ -1,4 +1,4 @@
-service vendor.bluetooth.finder-default /vendor/bin/hw/android.hardware.bluetooth.finder.default
+service vendor.bluetooth.finder-default /vendor/bin/hw/android.hardware.bluetooth.finder-service.default
     class hal
     capabilities BLOCK_SUSPEND NET_ADMIN SYS_NICE
     user bluetooth
diff --git a/bluetooth/ranging/OWNERS b/bluetooth/ranging/OWNERS
new file mode 100644
index 0000000..3d95624
--- /dev/null
+++ b/bluetooth/ranging/OWNERS
@@ -0,0 +1,5 @@
+# Bug component: 27441
+
+include platform/packages/modules/Bluetooth:/OWNERS
+
+chienyuanhuang@google.com
diff --git a/bluetooth/ranging/aidl/Android.bp b/bluetooth/ranging/aidl/Android.bp
new file mode 100644
index 0000000..9e53ef6
--- /dev/null
+++ b/bluetooth/ranging/aidl/Android.bp
@@ -0,0 +1,39 @@
+// Copyright (C) 2023 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.
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+aidl_interface {
+    name: "android.hardware.bluetooth.ranging",
+    vendor_available: true,
+    host_supported: true,
+    srcs: ["android/hardware/bluetooth/ranging/*.aidl"],
+    stability: "vintf",
+    backend: {
+        ndk: {
+            apex_available: [
+                "//apex_available:platform",
+                "com.android.btservices",
+            ],
+            min_sdk_version: "33",
+        },
+    },
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/AddressType.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/AddressType.aidl
new file mode 100644
index 0000000..fc417f0
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/AddressType.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum AddressType {
+  PUBLIC = 0x00,
+  RANDOM = 0x01,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/BluetoothChannelSoundingParameters.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/BluetoothChannelSoundingParameters.aidl
new file mode 100644
index 0000000..e8fefbe
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/BluetoothChannelSoundingParameters.aidl
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable BluetoothChannelSoundingParameters {
+  android.hardware.bluetooth.ranging.SessionType sessionType;
+  int aclHandle;
+  int l2capCid;
+  int realTimeProcedureDataAttHandle;
+  android.hardware.bluetooth.ranging.Role role;
+  boolean localSupportsSoundingPhaseBasedRanging;
+  boolean remoteSupportsSoundingPhaseBaseRanging;
+  android.hardware.bluetooth.ranging.Config config;
+  android.hardware.bluetooth.ranging.DeviceAddress address;
+  @nullable android.hardware.bluetooth.ranging.VendorSpecificData[] vendorSpecificData;
+  android.hardware.bluetooth.ranging.LocationType locationType;
+  android.hardware.bluetooth.ranging.SightType sightType;
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ChannelSoudingRawData.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ChannelSoudingRawData.aidl
new file mode 100644
index 0000000..e7fad4d
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ChannelSoudingRawData.aidl
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable ChannelSoudingRawData {
+  int procedureCounter;
+  boolean aborted;
+  android.hardware.bluetooth.ranging.ChannelSoundingSingleSideData initiatorData;
+  android.hardware.bluetooth.ranging.ChannelSoundingSingleSideData reflectorData;
+  byte[] stepChannels;
+  @nullable int[] toaTodInitiator;
+  @nullable int[] todToaReflector;
+  android.hardware.bluetooth.ranging.ModeType[] stepMode;
+  byte numAntennaPaths;
+  long timestampMs;
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ChannelSoundingSingleSideData.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ChannelSoundingSingleSideData.aidl
new file mode 100644
index 0000000..9fe85da
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ChannelSoundingSingleSideData.aidl
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable ChannelSoundingSingleSideData {
+  @nullable List<android.hardware.bluetooth.ranging.StepTonePct> stepTonePcts;
+  @nullable byte[] packetQuality;
+  @nullable byte[] packetRssiDbm;
+  @nullable android.hardware.bluetooth.ranging.Nadm[] packetNadm;
+  @nullable List<android.hardware.bluetooth.ranging.ComplexNumber> packetPct1;
+  @nullable List<android.hardware.bluetooth.ranging.ComplexNumber> packetPct2;
+  byte referencePowerDbm;
+  @nullable byte[] vendorSpecificCsSingleSidedata;
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ComplexNumber.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ComplexNumber.aidl
new file mode 100644
index 0000000..4d5ac21
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ComplexNumber.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable ComplexNumber {
+  double real;
+  double imaginary;
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Config.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Config.aidl
new file mode 100644
index 0000000..c9ac991
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Config.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable Config {
+  android.hardware.bluetooth.ranging.ModeType modeType;
+  android.hardware.bluetooth.ranging.SubModeType subModeType;
+  android.hardware.bluetooth.ranging.RttType rttType;
+  byte[10] channelMap;
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/CsSecurityLevel.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/CsSecurityLevel.aidl
new file mode 100644
index 0000000..6a31547
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/CsSecurityLevel.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum CsSecurityLevel {
+  NOT_SUPPORTED = 0x00,
+  ONE = 0x01,
+  TWO = 0x02,
+  THREE = 0x03,
+  FOUR = 0x04,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/DeviceAddress.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/DeviceAddress.aidl
new file mode 100644
index 0000000..69cad5d
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/DeviceAddress.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable DeviceAddress {
+  android.hardware.bluetooth.ranging.AddressType addressType;
+  byte[6] address;
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSounding.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSounding.aidl
new file mode 100644
index 0000000..004a482
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSounding.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+interface IBluetoothChannelSounding {
+  @nullable android.hardware.bluetooth.ranging.VendorSpecificData[] getVendorSpecificData();
+  @nullable android.hardware.bluetooth.ranging.SessionType[] getSupportedSessionTypes();
+  android.hardware.bluetooth.ranging.CsSecurityLevel getMaxSupportedCsSecurityLevel();
+  @nullable android.hardware.bluetooth.ranging.IBluetoothChannelSoundingSession openSession(in android.hardware.bluetooth.ranging.BluetoothChannelSoundingParameters params, in android.hardware.bluetooth.ranging.IBluetoothChannelSoundingSessionCallback callback);
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSession.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSession.aidl
new file mode 100644
index 0000000..9f691b4
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSession.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+interface IBluetoothChannelSoundingSession {
+  @nullable android.hardware.bluetooth.ranging.VendorSpecificData[] getVendorSpecificReplies();
+  android.hardware.bluetooth.ranging.ResultType[] getSupportedResultTypes();
+  boolean isAbortedProcedureRequired();
+  void writeRawData(in android.hardware.bluetooth.ranging.ChannelSoudingRawData rawData);
+  void close(android.hardware.bluetooth.ranging.Reason reason);
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSessionCallback.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSessionCallback.aidl
new file mode 100644
index 0000000..d6622de
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSessionCallback.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+interface IBluetoothChannelSoundingSessionCallback {
+  void onOpened(android.hardware.bluetooth.ranging.Reason reason);
+  void onOpenFailed(android.hardware.bluetooth.ranging.Reason reason);
+  void onResult(in android.hardware.bluetooth.ranging.RangingResult result);
+  void onClose(android.hardware.bluetooth.ranging.Reason reason);
+  void onCloseFailed(android.hardware.bluetooth.ranging.Reason reason);
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/LocationType.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/LocationType.aidl
new file mode 100644
index 0000000..d95af26
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/LocationType.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="byte") @VintfStability
+enum LocationType {
+  UNKNOWN = 0x00,
+  INDOOR = 0x01,
+  OUTDOOR = 0x02,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ModeType.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ModeType.aidl
new file mode 100644
index 0000000..75cdabc
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ModeType.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum ModeType {
+  ZERO = 0x00,
+  ONE = 0x01,
+  TWO = 0x02,
+  THREE = 0x03,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Nadm.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Nadm.aidl
new file mode 100644
index 0000000..a0aa47b
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Nadm.aidl
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="byte") @VintfStability
+enum Nadm {
+  ATTACK_IS_EXTREMELY_UNLIKELY = 0x00,
+  ATTACK_IS_VERY_UNLIKELY = 0x01,
+  ATTACK_IS_UNLIKELY = 0x02,
+  ATTACK_IS_POSSIBLE = 0x03,
+  ATTACK_IS_LIKELY = 0x04,
+  ATTACK_IS_VERY_LIKELY = 0x05,
+  ATTACK_IS_EXTREMELY_LIKELY = 0x06,
+  UNKNOWN = 0xFFu8,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/RangingResult.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/RangingResult.aidl
new file mode 100644
index 0000000..d092b80
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/RangingResult.aidl
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable RangingResult {
+  double resultMeters;
+  double errorMeters;
+  double azimuthDegrees;
+  double errorAzimuthDegrees;
+  double altitudeDegrees;
+  double errorAltitudeDegrees;
+  double delaySpreadMeters;
+  byte confidenceLevel;
+  android.hardware.bluetooth.ranging.Nadm detectedAttackLevel;
+  double velocityMetersPerSecond;
+  @nullable byte[] vendorSpecificCsRangingResultsData;
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Reason.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Reason.aidl
new file mode 100644
index 0000000..ddd44fe
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Reason.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum Reason {
+  LOCAL_STACK_REQUEST,
+  HAL_INITIATED,
+  HARDWARE_INITIATED,
+  ERROR_INVALID_PARAMETER,
+  ERROR_UNKNOWN,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ResultType.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ResultType.aidl
new file mode 100644
index 0000000..b3e098c
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/ResultType.aidl
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum ResultType {
+  RESULT_METERS = 0x00,
+  ERROR_METERS = 0x01,
+  AZIMUTH_DEGREES = 0x02,
+  ERROR_AZIMUTH_DEGREES = 0x03,
+  ALTITUDE_DEGREES = 0x04,
+  ERROR_ALTITUDE_DEGREES = 0x05,
+  DELAY_SPREAD_METERS = 0x06,
+  CONFIDENCE_LEVEL = 0x07,
+  SECURITY_LEVEL = 0x08,
+  VELOCITY = 0x09,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Role.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Role.aidl
new file mode 100644
index 0000000..61ee1aa
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/Role.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum Role {
+  INITIATOR = 0,
+  REFLECTOR = 1,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/RttType.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/RttType.aidl
new file mode 100644
index 0000000..e662c07
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/RttType.aidl
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum RttType {
+  AA_COARSE = 0x00,
+  WITH_32_BIT_SOUNDING_SEQUENCE = 0x01,
+  WITH_96_BIT_SOUNDING_SEQUENCE = 0x02,
+  WITH_32_BIT_RANDOM_SEQUENCE = 0x03,
+  WITH_64_BIT_RANDOM_SEQUENCE = 0x04,
+  WITH_96_BIT_RANDOM_SEQUENCE = 0x05,
+  WITH_128_BIT_RANDOM_SEQUENCE = 0x06,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SessionType.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SessionType.aidl
new file mode 100644
index 0000000..d43022f
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SessionType.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum SessionType {
+  SOFTWARE_STACK_DATA_PARSING = 0,
+  HARDWARE_OFFLOAD_DATA_PARSING = 1,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SightType.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SightType.aidl
new file mode 100644
index 0000000..6e96ba4
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SightType.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="byte") @VintfStability
+enum SightType {
+  UNKNOWN = 0x00,
+  LINE_OF_SIGHT = 0x01,
+  NON_LINE_OF_SIGHT = 0x02,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/StepTonePct.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/StepTonePct.aidl
new file mode 100644
index 0000000..a51ba37
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/StepTonePct.aidl
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable StepTonePct {
+  List<android.hardware.bluetooth.ranging.ComplexNumber> tonePcts;
+  byte[] toneQualityIndicator;
+  const int TONE_QUALITY_GOOD = 0;
+  const int TONE_QUALITY_MEDIUM = 1;
+  const int TONE_QUALITY_LOW = 2;
+  const int TONE_QUALITY_UNAVAILABLE = 3;
+  const int EXTENSION_SLOT_NONE = 0;
+  const int EXTENSION_SLOT_TONE_NOT_EXPECTED_TO_BE_PRESENT = 1;
+  const int EXTENSION_SLOT_TONE_EXPECTED_TO_BE_PRESENT = 2;
+  const int EXTENSION_SLOT_SHIFT_AMOUNT = 4;
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SubModeType.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SubModeType.aidl
new file mode 100644
index 0000000..f660c91
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/SubModeType.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@Backing(type="int") @VintfStability
+enum SubModeType {
+  ONE = 0x01,
+  TWO = 0x02,
+  THREE = 0x03,
+  UNUSED = 0xff,
+}
diff --git a/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/VendorSpecificData.aidl b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/VendorSpecificData.aidl
new file mode 100644
index 0000000..13bf696
--- /dev/null
+++ b/bluetooth/ranging/aidl/aidl_api/android.hardware.bluetooth.ranging/current/android/hardware/bluetooth/ranging/VendorSpecificData.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.ranging;
+@VintfStability
+parcelable VendorSpecificData {
+  byte[16] characteristicUuid;
+  byte[] opaqueValue;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/AddressType.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/AddressType.aidl
new file mode 100644
index 0000000..bd03213
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/AddressType.aidl
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum AddressType {
+    PUBLIC = 0x00,
+    RANDOM = 0x01,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/BluetoothChannelSoundingParameters.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/BluetoothChannelSoundingParameters.aidl
new file mode 100644
index 0000000..0cda847
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/BluetoothChannelSoundingParameters.aidl
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.Config;
+import android.hardware.bluetooth.ranging.DeviceAddress;
+import android.hardware.bluetooth.ranging.LocationType;
+import android.hardware.bluetooth.ranging.Role;
+import android.hardware.bluetooth.ranging.SessionType;
+import android.hardware.bluetooth.ranging.SightType;
+import android.hardware.bluetooth.ranging.VendorSpecificData;
+
+/**
+ * Parameters for IBluetoothChannelSoundingSession.openSession().
+ */
+@VintfStability
+parcelable BluetoothChannelSoundingParameters {
+    SessionType sessionType;
+    /**
+     * Acl handle of the connection.
+     */
+    int aclHandle;
+    /**
+     * L2CAP Cid, needed in case of EATT which may use dynamic channel for GATT.
+     */
+    int l2capCid;
+    /**
+     * ATT handle of the Real-time Procedure Data.
+     */
+    int realTimeProcedureDataAttHandle;
+    /**
+     * Role of the local device.
+     */
+    Role role;
+    /**
+     * If sounding phase-based ranging is supported by the local device.
+     */
+    boolean localSupportsSoundingPhaseBasedRanging;
+    /**
+     * If sounding phase-based ranging is supported by the remote device.
+     */
+    boolean remoteSupportsSoundingPhaseBaseRanging;
+    /**
+     * CS conifg used for procedure enable.
+     */
+    Config config;
+    /**
+     * Device address of the remote device.
+     */
+    DeviceAddress address;
+    /**
+     * Vendor-specific data get from remote GATT Server
+     */
+    @nullable VendorSpecificData[] vendorSpecificData;
+    /**
+     * Specifies the preferred location type of the use case (indoor, outdoor, unknown), this is
+     * used by the HAL to choose the corresponding ranging algorithm if it supports multiple
+     * algorithms
+     */
+    LocationType locationType;
+    /**
+     * Specifies the preferred sight type of the use case (line-of-sight, non-line-of-sight,
+     * unknown), this is used by the HAL to choose the corresponding ranging algorithm if it
+     * supports multiple algorithms
+     */
+    SightType sightType;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ChannelSoudingRawData.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ChannelSoudingRawData.aidl
new file mode 100644
index 0000000..3c8a62f
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ChannelSoudingRawData.aidl
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.ChannelSoundingSingleSideData;
+import android.hardware.bluetooth.ranging.ModeType;
+
+/**
+ * Raw ranging data of Channel Sounding.
+ */
+@VintfStability
+parcelable ChannelSoudingRawData {
+    /**
+     * Procedure counter of the CS procedure.
+     */
+    int procedureCounter;
+    /**
+     * Indicate if the procedure aborted.
+     */
+    boolean aborted;
+    /**
+     * Common data for both initator and reflector sided.
+     */
+    ChannelSoundingSingleSideData initiatorData;
+    ChannelSoundingSingleSideData reflectorData;
+    /**
+     * The channel indices of every step in a CS procedure (in time order).
+     */
+    byte[] stepChannels;
+    /**
+     * Toa_tod_initator from mode-1 or mode-3 steps in a CS procedure (in time order).
+     * Time of flight = 0.5 * (toa_tod_initiator - tod_toa_reflector).
+     */
+    @nullable int[] toaTodInitiator;
+    /**
+     * Tod_toa_reflector from mode-1 or mode-3 steps in a CS procedure (in time order).
+     * Time of flight = 0.5 * (toa_tod_initiator - tod_toa_reflector).
+     */
+    @nullable int[] todToaReflector;
+    /**
+     * CS mode (0, 1, 2, 3) of each CS step.
+     */
+    ModeType[] stepMode;
+    /**
+     * Number of antenna paths (1 to 4) reported in the CS procedure.
+     */
+    byte numAntennaPaths;
+    /**
+     * Timestamp when the procedure is created. Using epoch time in ms (e.g., 1697673127175).
+     */
+    long timestampMs;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ChannelSoundingSingleSideData.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ChannelSoundingSingleSideData.aidl
new file mode 100644
index 0000000..2c3f201
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ChannelSoundingSingleSideData.aidl
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.ComplexNumber;
+import android.hardware.bluetooth.ranging.Nadm;
+import android.hardware.bluetooth.ranging.StepTonePct;
+
+/**
+ * Raw ranging data of Channel Sounding from either Initator or Reflector
+ */
+@VintfStability
+parcelable ChannelSoundingSingleSideData {
+    /**
+     * PCT (complex value) measured from mode-2 or mode-3 steps in a CS procedure (in time order).
+     */
+    @nullable List<StepTonePct> stepTonePcts;
+    /**
+     * Packet Quality from mode-1 or mode-3 steps in a CS procedures (in time order).
+     */
+    @nullable byte[] packetQuality;
+    /**
+     * Packet RSSI (-127 to 20) of mode-0, mode-1, or mode-3 step data, in dBm.
+     */
+    @nullable byte[] packetRssiDbm;
+    /**
+     * Packet NADM of mode-1 or mode-3 step data for attack detection.
+     */
+    @nullable Nadm[] packetNadm;
+    /**
+     * Packet_PCT1 or packet_PCT2 of mode-1 or mode-3, if sounding sequence is used and sounding
+     * phase-based ranging is supported.
+     */
+    @nullable List<ComplexNumber> packetPct1;
+    @nullable List<ComplexNumber> packetPct2;
+    /**
+     * Reference power level (-127 to 20) of the signal in the procedure, in dBm.
+     */
+    byte referencePowerDbm;
+    /**
+     * Parameter for vendors to place vendor-specific raw ranging data.
+     */
+    @nullable byte[] vendorSpecificCsSingleSidedata;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ComplexNumber.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ComplexNumber.aidl
new file mode 100644
index 0000000..5253d9f
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ComplexNumber.aidl
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+parcelable ComplexNumber {
+    double real;
+    double imaginary;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Config.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Config.aidl
new file mode 100644
index 0000000..85ae4c1
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Config.aidl
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.ModeType;
+import android.hardware.bluetooth.ranging.RttType;
+import android.hardware.bluetooth.ranging.SubModeType;
+
+@VintfStability
+parcelable Config {
+    /**
+     * Main_Mode_Type of the CS conifg
+     */
+    ModeType modeType;
+    /**
+     * Sub_Mode_Type of the CS conifg
+     */
+    SubModeType subModeType;
+    /**
+     * RTT_Type of the CS conifg
+     */
+    RttType rttType;
+    /**
+     * Channel_Map of the CS conifg, this parameter contains 80 1-bit fields. The nth such field
+     * (in the range 0 to 78) contains the value for the CS channel index n.
+     *
+     * Channel n is enabled for CS procedure = 1
+     * Channel n is disabled for CS procedure = 0
+     */
+    byte[10] channelMap;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/CsSecurityLevel.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/CsSecurityLevel.aidl
new file mode 100644
index 0000000..3fd4424
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/CsSecurityLevel.aidl
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum CsSecurityLevel {
+    /**
+     * Ranging algorithm is not implemented.
+     */
+    NOT_SUPPORTED = 0x00,
+    /**
+     * Either CS tone or CS RTT.
+     */
+    ONE = 0x01,
+    /**
+     * 150 ns CS RTT accuracy and CS tones.
+     */
+    TWO = 0x02,
+    /**
+     * 10 ns CS RTT accuracy and CS tones.
+     */
+    THREE = 0x03,
+    /**
+     * Level 3 with the addition of CS RTT sounding sequence or random sequence
+     * payloads, and support of the Normalized Attack Detector Metric requirements.
+     */
+    FOUR = 0x04,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/DeviceAddress.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/DeviceAddress.aidl
new file mode 100644
index 0000000..c847c30
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/DeviceAddress.aidl
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.AddressType;
+
+/**
+ * Bluetooth address with address type
+ */
+@VintfStability
+parcelable DeviceAddress {
+    AddressType addressType;
+    byte[6] address;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSounding.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSounding.aidl
new file mode 100644
index 0000000..45ec79f
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSounding.aidl
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.BluetoothChannelSoundingParameters;
+import android.hardware.bluetooth.ranging.CsSecurityLevel;
+import android.hardware.bluetooth.ranging.IBluetoothChannelSoundingSession;
+import android.hardware.bluetooth.ranging.IBluetoothChannelSoundingSessionCallback;
+import android.hardware.bluetooth.ranging.Nadm;
+import android.hardware.bluetooth.ranging.SessionType;
+import android.hardware.bluetooth.ranging.VendorSpecificData;
+
+/**
+ * The interface for the Bluetooth stack to get vendor specifc data and open session
+ * for channel sounding.
+ */
+@VintfStability
+interface IBluetoothChannelSounding {
+    /**
+     * API to get vendor-specific data, the Bluetooth stack will provision the GATT server with
+     * these vendor-specific UUIDs and data.
+     *
+     * @return an array of vendor specifc data
+     */
+    @nullable VendorSpecificData[] getVendorSpecificData();
+
+    /**
+     * API to get supported session types of the HAL
+     *
+     * @return an array of supported session types
+     */
+    @nullable SessionType[] getSupportedSessionTypes();
+
+    /**
+     * API to get max supported security level (0 to 4) of CS for ranging algorithms.
+     *
+     *  See: https://bluetooth.com/specifications/specs/channel-sounding-cr-pr/
+     *
+     * @return CsSecurityLevel that indicates max supported security level of CS for ranging
+     *         algorithms.
+     */
+    CsSecurityLevel getMaxSupportedCsSecurityLevel();
+
+    /**
+     * API to open session for channel sounding and register the corresponeding callback
+     *
+     * @return an instance of IBluetoothChannelSoundingSession
+     */
+    @nullable IBluetoothChannelSoundingSession openSession(
+            in BluetoothChannelSoundingParameters params,
+            in IBluetoothChannelSoundingSessionCallback callback);
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSession.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSession.aidl
new file mode 100644
index 0000000..97b147e
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSession.aidl
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.ChannelSoudingRawData;
+import android.hardware.bluetooth.ranging.Reason;
+import android.hardware.bluetooth.ranging.ResultType;
+import android.hardware.bluetooth.ranging.VendorSpecificData;
+
+/**
+ * Session of Channel Sounding get from IBluetoothChannelSounding.openSession().
+ * Used by the Bluetooth stack to get preferred config from HAL and provide raw ranging data to
+ * the HAL.
+ */
+@VintfStability
+interface IBluetoothChannelSoundingSession {
+    /**
+     * API to get vendor-specifc replies
+     *
+     * @return an array of vendor-specifc data
+     */
+    @nullable VendorSpecificData[] getVendorSpecificReplies();
+
+    /**
+     * API to obtain supported result types. The Bluetooth stack should use this function to check
+     * for supported result types and ignore unsupported types in the RangingResult.
+     *
+     * @return an array of vendor-specifc data
+     */
+    ResultType[] getSupportedResultTypes();
+
+    /**
+     * Indicate whether the HAL would like to receive raw data of abort procedures.
+     * If this function returns true, the Bluetooth stack should pass the data to the HAL using
+     * the writeRawData() function, even if the CS procedure is aborted.
+     *
+     * @return true if the HAL would like to receive raw data of abort procedures.
+     */
+    boolean isAbortedProcedureRequired();
+
+    /**
+     * API to provide raw ranging data to the HAL. The HAL converts this data into meaningful
+     * ranging results using a proprietary algorithm and then calls back to the Bluetooth stack via
+     * IBluetoothChannelSoundingSessionCallback.onResult().
+     */
+    void writeRawData(in ChannelSoudingRawData rawData);
+
+    /**
+     * Close the current session. Object is no longer useful after this method.
+     */
+    void close(Reason reason);
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSessionCallback.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSessionCallback.aidl
new file mode 100644
index 0000000..6901305
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSessionCallback.aidl
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.RangingResult;
+import android.hardware.bluetooth.ranging.Reason;
+
+/**
+ * The callback from the HAL to the stack.
+ * Register by IBluetoothChannelSoundingSession.openSession().
+ */
+@VintfStability
+interface IBluetoothChannelSoundingSessionCallback {
+    /**
+     * Invoked when IBluetoothChannelSounding.openSession() is successful.
+     */
+    void onOpened(Reason reason);
+    /**
+     * Invoked when IBluetoothChannelSounding.openSession() fails.
+     */
+    void onOpenFailed(Reason reason);
+    /**
+     * Invoked when HAL get raning result.
+     */
+    void onResult(in RangingResult result);
+    /**
+     * Invoked when IBluetoothChannelSoundingSession.close() is successful.
+     */
+    void onClose(Reason reason);
+    /**
+     * Invoked when IBluetoothChannelSoundingSession.close() fails.
+     */
+    void onCloseFailed(Reason reason);
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/LocationType.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/LocationType.aidl
new file mode 100644
index 0000000..bccf291
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/LocationType.aidl
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="byte")
+enum LocationType {
+    UNKNOWN = 0x00,
+    INDOOR = 0x01,
+    OUTDOOR = 0x02,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ModeType.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ModeType.aidl
new file mode 100644
index 0000000..2058ae8
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ModeType.aidl
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum ModeType {
+    ZERO = 0x00,
+    ONE = 0x01,
+    TWO = 0x02,
+    THREE = 0x03,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Nadm.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Nadm.aidl
new file mode 100644
index 0000000..3cfb22f
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Nadm.aidl
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="byte")
+enum Nadm {
+    ATTACK_IS_EXTREMELY_UNLIKELY = 0x00,
+    ATTACK_IS_VERY_UNLIKELY = 0x01,
+    ATTACK_IS_UNLIKELY = 0x02,
+    ATTACK_IS_POSSIBLE = 0x03,
+    ATTACK_IS_LIKELY = 0x04,
+    ATTACK_IS_VERY_LIKELY = 0x05,
+    ATTACK_IS_EXTREMELY_LIKELY = 0x06,
+    UNKNOWN = 0xFFu8,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/RangingResult.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/RangingResult.aidl
new file mode 100644
index 0000000..65907dd
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/RangingResult.aidl
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.Nadm;
+
+/**
+ * Generic structure to return the ranging result
+ */
+@VintfStability
+parcelable RangingResult {
+    /**
+     * Estimated distance in meters.
+     */
+    double resultMeters;
+    /**
+     * Potential distance estimate error (plus or minus) in meters, always positive.
+     */
+    double errorMeters;
+    /**
+     * Azimuth Angle measurement in degrees.
+     *
+     * Azimuth of remote device in horizontal coordinate system, this measured from azimuth north
+     * and increasing eastward. When the remote device in azimuth north, this angle is 0, when the
+     * remote device in azimuth south, this angle is 180.
+     *
+     * See: <a href="https://en.wikipedia.org/wiki/Horizontal_coordinate_system">Horizontal
+     *  coordinate system</a>for the details
+     *
+     * On an Android device, azimuth north is defined as the angle perpendicular away from the
+     * back of the device when holding it in portrait mode upright.
+     *
+     * The Azimuth north is defined as the direction in which the top edge of the device is
+     * facing when it is placed flat.
+     *
+     */
+    double azimuthDegrees;
+    /**
+     * Estimated error (plus or minus) of azimuth angle measurement in degrees, always positive.
+     */
+    double errorAzimuthDegrees;
+    /**
+     * Altitude Angle measurement in degrees.
+     *
+     * Altitude of remote device in horizontal coordinate system, this is the angle between the
+     * remote device and the top edge of local device. When local device is placed flat, the angle
+     * of the zenith is 90, the angle of the nadir is -90.
+     *
+     * See: https://en.wikipedia.org/wiki/Horizontal_coordinate_system
+     */
+    double altitudeDegrees;
+    /**
+     * Estimated error (plus or minus) of altitude angle measurement in degrees, always positive.
+     */
+    double errorAltitudeDegrees;
+    /**
+     * Estimated delay spread in meters of the measured channel. This is a measure of multipath
+     * richness of the channel.
+     */
+    double delaySpreadMeters;
+    /**
+     * A normalized value from 0 (low confidence) to 100 (high confidence) representing the
+     * confidence of estimated distance.
+     */
+    byte confidenceLevel;
+    /**
+     * A value representing the chance of being attacked for the measurement.
+     */
+    Nadm detectedAttackLevel;
+    /**
+     * Estimated velocity, in the direction of line between two devices, of the moving object in
+     * meters/sec.
+     */
+    double velocityMetersPerSecond;
+    /**
+     * Parameter for vendors to place vendor-specific ranging results data.
+     */
+    @nullable byte[] vendorSpecificCsRangingResultsData;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Reason.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Reason.aidl
new file mode 100644
index 0000000..4f587de
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Reason.aidl
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum Reason {
+    LOCAL_STACK_REQUEST,
+    HAL_INITIATED,
+    HARDWARE_INITIATED,
+    ERROR_INVALID_PARAMETER,
+    ERROR_UNKNOWN,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ResultType.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ResultType.aidl
new file mode 100644
index 0000000..561b7dd
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/ResultType.aidl
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum ResultType {
+    RESULT_METERS = 0x00,
+    ERROR_METERS = 0x01,
+    AZIMUTH_DEGREES = 0x02,
+    ERROR_AZIMUTH_DEGREES = 0x03,
+    ALTITUDE_DEGREES = 0x04,
+    ERROR_ALTITUDE_DEGREES = 0x05,
+    DELAY_SPREAD_METERS = 0x06,
+    CONFIDENCE_LEVEL = 0x07,
+    SECURITY_LEVEL = 0x08,
+    VELOCITY = 0x09,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Role.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Role.aidl
new file mode 100644
index 0000000..b531935
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/Role.aidl
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum Role {
+    INITIATOR = 0,
+    REFLECTOR = 1,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/RttType.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/RttType.aidl
new file mode 100644
index 0000000..6e163c9
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/RttType.aidl
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum RttType {
+    AA_COARSE = 0x00,
+    WITH_32_BIT_SOUNDING_SEQUENCE = 0x01,
+    WITH_96_BIT_SOUNDING_SEQUENCE = 0x02,
+    WITH_32_BIT_RANDOM_SEQUENCE = 0x03,
+    WITH_64_BIT_RANDOM_SEQUENCE = 0x04,
+    WITH_96_BIT_RANDOM_SEQUENCE = 0x05,
+    WITH_128_BIT_RANDOM_SEQUENCE = 0x06,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SessionType.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SessionType.aidl
new file mode 100644
index 0000000..4f0d529
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SessionType.aidl
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum SessionType {
+    /**
+     * Stack parses raw data and passes it to the HAL
+     */
+    SOFTWARE_STACK_DATA_PARSING = 0,
+    /**
+     * Offloader parses raw data
+     */
+    HARDWARE_OFFLOAD_DATA_PARSING = 1
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SightType.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SightType.aidl
new file mode 100644
index 0000000..14106e0
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SightType.aidl
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="byte")
+enum SightType {
+    UNKNOWN = 0x00,
+    LINE_OF_SIGHT = 0x01,
+    NON_LINE_OF_SIGHT = 0x02,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/StepTonePct.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/StepTonePct.aidl
new file mode 100644
index 0000000..99c6d65
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/StepTonePct.aidl
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+import android.hardware.bluetooth.ranging.ComplexNumber;
+
+/**
+ * Tone PCT data with quality indicator from a mode-2 or mode-3 step.
+ */
+@VintfStability
+parcelable StepTonePct {
+    List<ComplexNumber> tonePcts;
+    const int TONE_QUALITY_GOOD = 0;
+    const int TONE_QUALITY_MEDIUM = 1;
+    const int TONE_QUALITY_LOW = 2;
+    const int TONE_QUALITY_UNAVAILABLE = 3;
+    const int EXTENSION_SLOT_NONE = 0;
+    const int EXTENSION_SLOT_TONE_NOT_EXPECTED_TO_BE_PRESENT = 1;
+    const int EXTENSION_SLOT_TONE_EXPECTED_TO_BE_PRESENT = 2;
+    /**
+     * Shift amount for extension slot (bits 4 to 7).
+     */
+    const int EXTENSION_SLOT_SHIFT_AMOUNT = 4;
+    /**
+     * Tone_Quality_Indicator defined in the LE CS Subevent Result event
+     *
+     * Bits 0 to 3:
+     * 0x0 = Tone quality is good
+     * 0x1 = Tone quality is medium
+     * 0x2 = Tone quality is low
+     * 0x3 = Tone quality is unavailable
+     *
+     * Bits 4 to 7:
+     * 0x0 = Not tone extension slot
+     * 0x1 = Tone extension slot; tone not expected to be present
+     * 0x2 = Tone extension slot; tone expected to be present
+     *
+     * See: https://bluetooth.com/specifications/specs/channel-sounding-cr-pr/
+     */
+    byte[] toneQualityIndicator;
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SubModeType.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SubModeType.aidl
new file mode 100644
index 0000000..ca9bfcb
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/SubModeType.aidl
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+@VintfStability
+@Backing(type="int")
+enum SubModeType {
+    ONE = 0x01,
+    TWO = 0x02,
+    THREE = 0x03,
+    UNUSED = 0xff,
+}
diff --git a/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/VendorSpecificData.aidl b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/VendorSpecificData.aidl
new file mode 100644
index 0000000..a8c9a2a
--- /dev/null
+++ b/bluetooth/ranging/aidl/android/hardware/bluetooth/ranging/VendorSpecificData.aidl
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2023 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.
+ */
+
+package android.hardware.bluetooth.ranging;
+
+/**
+ * Vendor specific data for GATT.
+ */
+@VintfStability
+parcelable VendorSpecificData {
+    byte[16] characteristicUuid;
+    byte[] opaqueValue;
+}
diff --git a/bluetooth/ranging/aidl/default/Android.bp b/bluetooth/ranging/aidl/default/Android.bp
new file mode 100644
index 0000000..5072a43
--- /dev/null
+++ b/bluetooth/ranging/aidl/default/Android.bp
@@ -0,0 +1,29 @@
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+cc_binary {
+    name: "android.hardware.bluetooth.ranging-service.default",
+    relative_install_path: "hw",
+    init_rc: ["bluetooth-ranging-service-default.rc"],
+    vintf_fragments: [":manifest_android.hardware.bluetooth.ranging-service.default.xml"],
+    vendor: true,
+    srcs: [
+        "BluetoothChannelSounding.cpp",
+        "BluetoothChannelSoundingSession.cpp",
+        "service.cpp",
+    ],
+    shared_libs: [
+        "android.hardware.bluetooth.ranging-V1-ndk",
+        "libbase",
+        "libbinder_ndk",
+        "libhidlbase",
+        "libutils",
+        "liblog",
+    ],
+}
+
+filegroup {
+    name: "manifest_android.hardware.bluetooth.ranging-service.default.xml",
+    srcs: ["bluetooth-ranging-service-default.xml"],
+}
diff --git a/bluetooth/ranging/aidl/default/BluetoothChannelSounding.cpp b/bluetooth/ranging/aidl/default/BluetoothChannelSounding.cpp
new file mode 100644
index 0000000..3807d4f
--- /dev/null
+++ b/bluetooth/ranging/aidl/default/BluetoothChannelSounding.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2023 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 "BluetoothChannelSounding.h"
+
+#include "BluetoothChannelSoundingSession.h"
+
+namespace aidl::android::hardware::bluetooth::ranging::impl {
+
+BluetoothChannelSounding::BluetoothChannelSounding() {}
+BluetoothChannelSounding::~BluetoothChannelSounding() {}
+
+ndk::ScopedAStatus BluetoothChannelSounding::getVendorSpecificData(
+    std::optional<
+        std::vector<std::optional<VendorSpecificData>>>* /*_aidl_return*/) {
+  return ::ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus BluetoothChannelSounding::getSupportedSessionTypes(
+    std::optional<std::vector<SessionType>>* _aidl_return) {
+  std::vector<SessionType> supported_session_types = {};
+  *_aidl_return = supported_session_types;
+  return ::ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus BluetoothChannelSounding::getMaxSupportedCsSecurityLevel(
+    CsSecurityLevel* _aidl_return) {
+  CsSecurityLevel security_level = CsSecurityLevel::NOT_SUPPORTED;
+  *_aidl_return = security_level;
+  return ::ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus BluetoothChannelSounding::openSession(
+    const BluetoothChannelSoundingParameters& /*in_params*/,
+    const std::shared_ptr<IBluetoothChannelSoundingSessionCallback>&
+        in_callback,
+    std::shared_ptr<IBluetoothChannelSoundingSession>* _aidl_return) {
+  if (in_callback == nullptr) {
+    return ndk::ScopedAStatus::fromExceptionCodeWithMessage(
+        EX_ILLEGAL_ARGUMENT, "Invalid nullptr callback");
+  }
+  std::shared_ptr<BluetoothChannelSoundingSession> session = nullptr;
+  session = ndk::SharedRefBase::make<BluetoothChannelSoundingSession>(
+      in_callback, Reason::LOCAL_STACK_REQUEST);
+  *_aidl_return = session;
+  return ::ndk::ScopedAStatus::ok();
+}
+}  // namespace aidl::android::hardware::bluetooth::ranging::impl
diff --git a/bluetooth/ranging/aidl/default/BluetoothChannelSounding.h b/bluetooth/ranging/aidl/default/BluetoothChannelSounding.h
new file mode 100644
index 0000000..d6b5c03
--- /dev/null
+++ b/bluetooth/ranging/aidl/default/BluetoothChannelSounding.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2023 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 <aidl/android/hardware/bluetooth/ranging/BnBluetoothChannelSounding.h>
+
+#include <vector>
+
+namespace aidl::android::hardware::bluetooth::ranging::impl {
+
+using ::aidl::android::hardware::bluetooth::ranging::
+    BluetoothChannelSoundingParameters;
+using ::aidl::android::hardware::bluetooth::ranging::BnBluetoothChannelSounding;
+using ::aidl::android::hardware::bluetooth::ranging::CsSecurityLevel;
+using ::aidl::android::hardware::bluetooth::ranging::
+    IBluetoothChannelSoundingSession;
+using ::aidl::android::hardware::bluetooth::ranging::
+    IBluetoothChannelSoundingSessionCallback;
+using ::aidl::android::hardware::bluetooth::ranging::SessionType;
+using ::aidl::android::hardware::bluetooth::ranging::VendorSpecificData;
+
+class BluetoothChannelSounding : public BnBluetoothChannelSounding {
+ public:
+  BluetoothChannelSounding();
+  ~BluetoothChannelSounding();  // Add the destructor declaration
+  ndk::ScopedAStatus getVendorSpecificData(
+      std::optional<std::vector<std::optional<VendorSpecificData>>>*
+          _aidl_return) override;
+  ndk::ScopedAStatus getSupportedSessionTypes(
+      std::optional<std::vector<SessionType>>* _aidl_return) override;
+  ndk::ScopedAStatus getMaxSupportedCsSecurityLevel(
+      CsSecurityLevel* _aidl_return) override;
+  ndk::ScopedAStatus openSession(
+      const BluetoothChannelSoundingParameters& in_params,
+      const std::shared_ptr<IBluetoothChannelSoundingSessionCallback>&
+          in_callback,
+      std::shared_ptr<IBluetoothChannelSoundingSession>* _aidl_return) override;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::ranging::impl
diff --git a/bluetooth/ranging/aidl/default/BluetoothChannelSoundingSession.cpp b/bluetooth/ranging/aidl/default/BluetoothChannelSoundingSession.cpp
new file mode 100644
index 0000000..6c58a07
--- /dev/null
+++ b/bluetooth/ranging/aidl/default/BluetoothChannelSoundingSession.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2023 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 "BluetoothChannelSoundingSession.h"
+
+namespace aidl::android::hardware::bluetooth::ranging::impl {
+
+BluetoothChannelSoundingSession::BluetoothChannelSoundingSession(
+    std::shared_ptr<IBluetoothChannelSoundingSessionCallback> callback,
+    Reason reason) {
+  callback_ = callback;
+  callback_->onOpened(reason);
+}
+
+ndk::ScopedAStatus BluetoothChannelSoundingSession::getVendorSpecificReplies(
+    std::optional<
+        std::vector<std::optional<VendorSpecificData>>>* /*_aidl_return*/) {
+  return ::ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus BluetoothChannelSoundingSession::getSupportedResultTypes(
+    std::vector<ResultType>* _aidl_return) {
+  std::vector<ResultType> supported_result_types = {ResultType::RESULT_METERS};
+  *_aidl_return = supported_result_types;
+  return ::ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus BluetoothChannelSoundingSession::isAbortedProcedureRequired(
+    bool* _aidl_return) {
+  *_aidl_return = false;
+  return ::ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus BluetoothChannelSoundingSession::writeRawData(
+    const ChannelSoudingRawData& /*in_rawData*/) {
+  RangingResult ranging_result;
+  ranging_result.resultMeters = 0.0;
+  callback_->onResult(ranging_result);
+  return ::ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus BluetoothChannelSoundingSession::close(Reason in_reason) {
+  callback_->onClose(in_reason);
+  return ::ndk::ScopedAStatus::ok();
+}
+}  // namespace aidl::android::hardware::bluetooth::ranging::impl
diff --git a/bluetooth/ranging/aidl/default/BluetoothChannelSoundingSession.h b/bluetooth/ranging/aidl/default/BluetoothChannelSoundingSession.h
new file mode 100644
index 0000000..6703f7f
--- /dev/null
+++ b/bluetooth/ranging/aidl/default/BluetoothChannelSoundingSession.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2023 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 <aidl/android/hardware/bluetooth/ranging/BnBluetoothChannelSoundingSession.h>
+#include <aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSessionCallback.h>
+
+#include <vector>
+
+namespace aidl::android::hardware::bluetooth::ranging::impl {
+
+using ::aidl::android::hardware::bluetooth::ranging::ChannelSoudingRawData;
+using ::aidl::android::hardware::bluetooth::ranging::Reason;
+using ::aidl::android::hardware::bluetooth::ranging::ResultType;
+using ::aidl::android::hardware::bluetooth::ranging::VendorSpecificData;
+
+class BluetoothChannelSoundingSession
+    : public BnBluetoothChannelSoundingSession {
+ public:
+  BluetoothChannelSoundingSession(
+      std::shared_ptr<IBluetoothChannelSoundingSessionCallback> callback,
+      Reason reason);
+
+  ndk::ScopedAStatus getVendorSpecificReplies(
+      std::optional<std::vector<std::optional<VendorSpecificData>>>*
+          _aidl_return) override;
+  ndk::ScopedAStatus getSupportedResultTypes(
+      std::vector<ResultType>* _aidl_return) override;
+  ndk::ScopedAStatus isAbortedProcedureRequired(bool* _aidl_return) override;
+  ndk::ScopedAStatus writeRawData(
+      const ChannelSoudingRawData& in_rawData) override;
+  ndk::ScopedAStatus close(Reason in_reason) override;
+
+ private:
+  std::shared_ptr<IBluetoothChannelSoundingSessionCallback> callback_;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::ranging::impl
diff --git a/bluetooth/ranging/aidl/default/bluetooth-ranging-service-default.rc b/bluetooth/ranging/aidl/default/bluetooth-ranging-service-default.rc
new file mode 100644
index 0000000..fabb409
--- /dev/null
+++ b/bluetooth/ranging/aidl/default/bluetooth-ranging-service-default.rc
@@ -0,0 +1,6 @@
+service vendor.bluetooth.ranging-default /vendor/bin/hw/android.hardware.bluetooth.ranging-service.default
+    class hal
+    capabilities BLOCK_SUSPEND NET_ADMIN SYS_NICE
+    user bluetooth
+    group bluetooth
+    task_profiles HighPerformance
diff --git a/bluetooth/ranging/aidl/default/bluetooth-ranging-service-default.xml b/bluetooth/ranging/aidl/default/bluetooth-ranging-service-default.xml
new file mode 100644
index 0000000..fe3613d
--- /dev/null
+++ b/bluetooth/ranging/aidl/default/bluetooth-ranging-service-default.xml
@@ -0,0 +1,7 @@
+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.bluetooth.ranging</name>
+        <version>1</version>
+        <fqname>IBluetoothChannelSounding/default</fqname>
+    </hal>
+</manifest>
diff --git a/bluetooth/ranging/aidl/default/service.cpp b/bluetooth/ranging/aidl/default/service.cpp
new file mode 100644
index 0000000..83e539e
--- /dev/null
+++ b/bluetooth/ranging/aidl/default/service.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2023 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 "aidl.android.hardware.bluetooth.ranging.service.default"
+
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <utils/Log.h>
+
+#include "BluetoothChannelSounding.h"
+#include "BluetoothChannelSoundingSession.h"
+
+using ::aidl::android::hardware::bluetooth::ranging::impl::
+    BluetoothChannelSounding;
+
+int main(int /* argc */, char** /* argv */) {
+  ALOGI("Bluetooth Ranging HAL registering");
+  if (!ABinderProcess_setThreadPoolMaxThreadCount(0)) {
+    ALOGE("Failed to set thread pool max thread count");
+    return 1;
+  }
+
+  std::shared_ptr<BluetoothChannelSounding> service =
+      ndk::SharedRefBase::make<BluetoothChannelSounding>();
+  std::string instance =
+      std::string() + BluetoothChannelSounding::descriptor + "/default";
+  auto result =
+      AServiceManager_addService(service->asBinder().get(), instance.c_str());
+  if (result == STATUS_OK) {
+    ABinderProcess_joinThreadPool();
+  } else {
+    ALOGE("Could not register as a service!");
+  }
+  return 0;
+}
diff --git a/bluetooth/ranging/aidl/vts/Android.bp b/bluetooth/ranging/aidl/vts/Android.bp
new file mode 100644
index 0000000..ead9992
--- /dev/null
+++ b/bluetooth/ranging/aidl/vts/Android.bp
@@ -0,0 +1,27 @@
+package {
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+cc_test {
+    name: "VtsHalBluetoothRangingTargetTest",
+    defaults: [
+        "use_libaidlvintf_gtest_helper_static",
+    ],
+    srcs: ["VtsHalBluetoothRangingTargetTest.cpp"],
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "libcutils",
+        "liblog",
+        "libutils",
+    ],
+    static_libs: [
+        "android.hardware.bluetooth.ranging-V1-ndk",
+        "libbluetooth-types",
+    ],
+    test_config: "VtsHalBluetoothRangingTargetTest.xml",
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
+}
diff --git a/bluetooth/ranging/aidl/vts/VtsHalBluetoothRangingTargetTest.cpp b/bluetooth/ranging/aidl/vts/VtsHalBluetoothRangingTargetTest.cpp
new file mode 100644
index 0000000..702df95
--- /dev/null
+++ b/bluetooth/ranging/aidl/vts/VtsHalBluetoothRangingTargetTest.cpp
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2023 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 <aidl/Gtest.h>
+#include <aidl/Vintf.h>
+#include <aidl/android/hardware/bluetooth/ranging/BnBluetoothChannelSoundingSessionCallback.h>
+#include <aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSounding.h>
+#include <aidl/android/hardware/bluetooth/ranging/IBluetoothChannelSoundingSessionCallback.h>
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <binder/IServiceManager.h>
+#include <utils/Log.h>
+
+using aidl::android::hardware::bluetooth::ranging::
+    BluetoothChannelSoundingParameters;
+using aidl::android::hardware::bluetooth::ranging::
+    BnBluetoothChannelSoundingSessionCallback;
+using aidl::android::hardware::bluetooth::ranging::ChannelSoudingRawData;
+using aidl::android::hardware::bluetooth::ranging::CsSecurityLevel;
+using aidl::android::hardware::bluetooth::ranging::IBluetoothChannelSounding;
+using aidl::android::hardware::bluetooth::ranging::
+    IBluetoothChannelSoundingSession;
+using aidl::android::hardware::bluetooth::ranging::
+    IBluetoothChannelSoundingSessionCallback;
+using aidl::android::hardware::bluetooth::ranging::RangingResult;
+using aidl::android::hardware::bluetooth::ranging::Reason;
+using aidl::android::hardware::bluetooth::ranging::ResultType;
+using aidl::android::hardware::bluetooth::ranging::SessionType;
+using aidl::android::hardware::bluetooth::ranging::VendorSpecificData;
+using ndk::ScopedAStatus;
+
+class BluetoothChannelSoundingSessionCallback
+    : public BnBluetoothChannelSoundingSessionCallback {
+ public:
+  ScopedAStatus onOpened(Reason reason) override;
+  ScopedAStatus onOpenFailed(Reason reason) override;
+  ScopedAStatus onResult(const RangingResult& in_result) override;
+  ScopedAStatus onClose(Reason reason) override;
+  ScopedAStatus onCloseFailed(Reason reason) override;
+};
+
+ScopedAStatus BluetoothChannelSoundingSessionCallback::onOpened(
+    Reason /*reason*/) {
+  return ::ndk::ScopedAStatus::ok();
+}
+ScopedAStatus BluetoothChannelSoundingSessionCallback::onOpenFailed(
+    Reason /*reason*/) {
+  return ::ndk::ScopedAStatus::ok();
+}
+ScopedAStatus BluetoothChannelSoundingSessionCallback::onResult(
+    const RangingResult& /*in_result*/) {
+  return ::ndk::ScopedAStatus::ok();
+}
+ScopedAStatus BluetoothChannelSoundingSessionCallback::onClose(
+    Reason /*reason*/) {
+  return ::ndk::ScopedAStatus::ok();
+}
+ScopedAStatus BluetoothChannelSoundingSessionCallback::onCloseFailed(
+    Reason /*reason*/) {
+  return ::ndk::ScopedAStatus::ok();
+}
+
+class BluetoothRangingTest : public ::testing::TestWithParam<std::string> {
+ public:
+  virtual void SetUp() override {
+    ALOGI("SetUp Ranging Test");
+    bluetooth_channel_sounding_ = IBluetoothChannelSounding::fromBinder(
+        ndk::SpAIBinder(AServiceManager_waitForService(GetParam().c_str())));
+    ASSERT_NE(bluetooth_channel_sounding_, nullptr);
+  }
+
+  virtual void TearDown() override {
+    ALOGI("TearDown Ranging Test");
+    bluetooth_channel_sounding_ = nullptr;
+    ASSERT_EQ(bluetooth_channel_sounding_, nullptr);
+  }
+
+  ScopedAStatus getVendorSpecificData(
+      std::optional<std::vector<std::optional<VendorSpecificData>>>*
+          _aidl_return);
+  ScopedAStatus getSupportedSessionTypes(
+      std::optional<std::vector<SessionType>>* _aidl_return);
+  ScopedAStatus getMaxSupportedCsSecurityLevel(CsSecurityLevel* _aidl_return);
+  ScopedAStatus openSession(
+      const BluetoothChannelSoundingParameters& in_params,
+      const std::shared_ptr<IBluetoothChannelSoundingSessionCallback>&
+          in_callback,
+      std::shared_ptr<IBluetoothChannelSoundingSession>* _aidl_return);
+
+  ScopedAStatus initBluetoothChannelSoundingSession(
+      std::shared_ptr<IBluetoothChannelSoundingSession>* session) {
+    BluetoothChannelSoundingParameters params;
+    std::shared_ptr<BluetoothChannelSoundingSessionCallback> callback = nullptr;
+    callback =
+        ndk::SharedRefBase::make<BluetoothChannelSoundingSessionCallback>();
+    ScopedAStatus status = openSession(params, callback, session);
+    return status;
+  }
+
+ private:
+  std::shared_ptr<IBluetoothChannelSounding> bluetooth_channel_sounding_;
+};
+
+ScopedAStatus BluetoothRangingTest::getVendorSpecificData(
+    std::optional<std::vector<std::optional<VendorSpecificData>>>*
+        _aidl_return) {
+  return bluetooth_channel_sounding_->getVendorSpecificData(_aidl_return);
+}
+ScopedAStatus BluetoothRangingTest::getSupportedSessionTypes(
+    std::optional<std::vector<SessionType>>* _aidl_return) {
+  return bluetooth_channel_sounding_->getSupportedSessionTypes(_aidl_return);
+}
+
+ScopedAStatus BluetoothRangingTest::getMaxSupportedCsSecurityLevel(
+    CsSecurityLevel* _aidl_return) {
+  return bluetooth_channel_sounding_->getMaxSupportedCsSecurityLevel(
+      _aidl_return);
+}
+ScopedAStatus BluetoothRangingTest::openSession(
+    const BluetoothChannelSoundingParameters& in_params,
+    const std::shared_ptr<IBluetoothChannelSoundingSessionCallback>&
+        in_callback,
+    std::shared_ptr<IBluetoothChannelSoundingSession>* _aidl_return) {
+  return bluetooth_channel_sounding_->openSession(in_params, in_callback,
+                                                  _aidl_return);
+}
+
+TEST_P(BluetoothRangingTest, SetupAndTearDown) {}
+
+TEST_P(BluetoothRangingTest, GetVendorSpecificData) {
+  std::optional<std::vector<std::optional<VendorSpecificData>>>
+      vendor_specific_data;
+  ScopedAStatus status = getVendorSpecificData(&vendor_specific_data);
+  ASSERT_TRUE(status.isOk());
+}
+
+TEST_P(BluetoothRangingTest, GetSupportedSessionTypes) {
+  std::optional<std::vector<SessionType>> supported_session_types;
+  ScopedAStatus status = getSupportedSessionTypes(&supported_session_types);
+  ASSERT_TRUE(status.isOk());
+}
+
+TEST_P(BluetoothRangingTest, GetMaxSupportedCsSecurityLevel) {
+  CsSecurityLevel security_level;
+  ScopedAStatus status = getMaxSupportedCsSecurityLevel(&security_level);
+  ASSERT_TRUE(status.isOk());
+}
+
+TEST_P(BluetoothRangingTest, OpenSession) {
+  BluetoothChannelSoundingParameters params;
+  std::shared_ptr<BluetoothChannelSoundingSessionCallback> callback = nullptr;
+  callback =
+      ndk::SharedRefBase::make<BluetoothChannelSoundingSessionCallback>();
+  std::shared_ptr<IBluetoothChannelSoundingSession> session;
+  ScopedAStatus status = openSession(params, callback, &session);
+  ASSERT_TRUE(status.isOk());
+}
+
+TEST_P(BluetoothRangingTest, GetVendorSpecificReplies) {
+  std::shared_ptr<IBluetoothChannelSoundingSession> session;
+  auto status = initBluetoothChannelSoundingSession(&session);
+  ASSERT_TRUE(status.isOk());
+  if (session != nullptr) {
+    std::optional<std::vector<std::optional<VendorSpecificData>>>
+        vendor_specific_data;
+    status = session->getVendorSpecificReplies(&vendor_specific_data);
+    ASSERT_TRUE(status.isOk());
+  }
+}
+
+TEST_P(BluetoothRangingTest, GetSupportedResultTypes) {
+  std::shared_ptr<IBluetoothChannelSoundingSession> session;
+  auto status = initBluetoothChannelSoundingSession(&session);
+  ASSERT_TRUE(status.isOk());
+  if (session != nullptr) {
+    std::vector<ResultType> supported_result_types;
+    status = session->getSupportedResultTypes(&supported_result_types);
+    ASSERT_TRUE(status.isOk());
+  }
+}
+
+TEST_P(BluetoothRangingTest, IsAbortedProcedureRequired) {
+  std::shared_ptr<IBluetoothChannelSoundingSession> session;
+  auto status = initBluetoothChannelSoundingSession(&session);
+  ASSERT_TRUE(status.isOk());
+  if (session != nullptr) {
+    bool is_abort_procedure_required = true;
+    status = session->isAbortedProcedureRequired(&is_abort_procedure_required);
+    ASSERT_TRUE(status.isOk());
+  }
+}
+
+TEST_P(BluetoothRangingTest, WriteRawData) {
+  std::shared_ptr<IBluetoothChannelSoundingSession> session;
+  auto status = initBluetoothChannelSoundingSession(&session);
+  ASSERT_TRUE(status.isOk());
+  if (session != nullptr) {
+    ChannelSoudingRawData raw_data;
+    status = session->writeRawData(raw_data);
+    ASSERT_TRUE(status.isOk());
+  }
+}
+
+TEST_P(BluetoothRangingTest, CloseSession) {
+  std::shared_ptr<IBluetoothChannelSoundingSession> session;
+  auto status = initBluetoothChannelSoundingSession(&session);
+  ASSERT_TRUE(status.isOk());
+  if (session != nullptr) {
+    status = session->close(Reason::LOCAL_STACK_REQUEST);
+    ASSERT_TRUE(status.isOk());
+  }
+}
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BluetoothRangingTest);
+INSTANTIATE_TEST_SUITE_P(PerInstance, BluetoothRangingTest,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(
+                             IBluetoothChannelSounding::descriptor)),
+                         android::PrintInstanceNameToString);
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  ABinderProcess_startThreadPool();
+  int status = RUN_ALL_TESTS();
+  ALOGI("Test result = %d", status);
+  return status;
+}
\ No newline at end of file
diff --git a/bluetooth/ranging/aidl/vts/VtsHalBluetoothRangingTargetTest.xml b/bluetooth/ranging/aidl/vts/VtsHalBluetoothRangingTargetTest.xml
new file mode 100644
index 0000000..624b77e
--- /dev/null
+++ b/bluetooth/ranging/aidl/vts/VtsHalBluetoothRangingTargetTest.xml
@@ -0,0 +1,33 @@
+<!--
+  Copyright (C) 2023 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.
+-->
+
+<configuration description="Runs VtsHalBluetoothRangingTargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer">
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push" value="VtsHalBluetoothRangingTargetTest->/data/local/tmp/VtsHalBluetoothRangingTargetTest" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsHalBluetoothRangingTargetTest" />
+    </test>
+</configuration>
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/Metadata.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/Metadata.aidl
index 3298cac..7769b8c 100644
--- a/broadcastradio/aidl/android/hardware/broadcastradio/Metadata.aidl
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/Metadata.aidl
@@ -70,9 +70,9 @@
     /**
      * Station name.
      *
-     * This is a generic field to cover any radio technology.
+     * <p>This is a generic field to cover any radio technology.
      *
-     * If the PROGRAM_NAME has the same content as DAB_*_NAME or RDS_PS,
+     * <p>Note: If the program name has the same content as dab*Name or ({@link Metadata#rdsPs},
      * it may not be present, to preserve space - framework must repopulate
      * it on the client side.
      */
@@ -86,10 +86,10 @@
     /**
      * DAB ensemble name abbreviated (string).
      *
-     * The string must be up to 8 characters long.
+     * <p>Note: The string must be up to 8 characters long.
      *
-     * If the short variant is present, the long (DAB_ENSEMBLE_NAME) one must be
-     * present as well.
+     * <p>Note: If the short variant is present, the long ({@link Metadata#dabEnsembleName})
+     * one must be present as well.
      */
     String dabEnsembleNameShort;
 
@@ -99,7 +99,9 @@
     String dabServiceName;
 
     /**
-     * DAB service name abbreviated (see DAB_ENSEMBLE_NAME_SHORT) (string)
+     * DAB service name abbreviated (string)
+     *
+     * <p>Note: The string must be up to 8 characters long.
      */
     String dabServiceNameShort;
 
@@ -109,7 +111,9 @@
     String dabComponentName;
 
     /**
-     * DAB component name abbreviated (see DAB_ENSEMBLE_NAME_SHORT) (string)
+     * DAB component name abbreviated (string)
+     *
+     * <p>Note: The string must be up to 8 characters long.
      */
     String dabComponentNameShort;
 }
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/ProgramIdentifier.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/ProgramIdentifier.aidl
index 2057d97..a2de5d6 100644
--- a/broadcastradio/aidl/android/hardware/broadcastradio/ProgramIdentifier.aidl
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/ProgramIdentifier.aidl
@@ -30,8 +30,10 @@
     IdentifierType type = IdentifierType.INVALID;
 
     /**
-     * The uint64_t value field holds the value in format described in comments
-     * for IdentifierType enum.
+     * The value field holds the value in format described in comments for IdentifierType enum.
+     *
+     * The value should be 64-bit unsigned integer, but is represented as 64-bit signed integer
+     * in AIDL.
      */
     long value;
 }
diff --git a/broadcastradio/aidl/default/VirtualRadio.cpp b/broadcastradio/aidl/default/VirtualRadio.cpp
index 126bcff..86c5a96 100644
--- a/broadcastradio/aidl/default/VirtualRadio.cpp
+++ b/broadcastradio/aidl/default/VirtualRadio.cpp
@@ -53,18 +53,18 @@
     static VirtualRadio amFmRadioMock(
         "AM/FM radio mock",
         {
-            {makeSelectorAmfm(/* frequency= */ 94900), "Wild 94.9", "Drake ft. Rihanna",
+            {makeSelectorAmfm(/* frequency= */ 94900u), "Wild 94.9", "Drake ft. Rihanna",
                 "Too Good"},
-            {makeSelectorAmfm(/* frequency= */ 96500), "KOIT", "Celine Dion", "All By Myself"},
-            {makeSelectorAmfm(/* frequency= */ 97300), "Alice@97.3", "Drops of Jupiter", "Train"},
-            {makeSelectorAmfm(/* frequency= */ 99700), "99.7 Now!", "The Chainsmokers", "Closer"},
-            {makeSelectorAmfm(/* frequency= */ 101300), "101-3 KISS-FM", "Justin Timberlake",
+            {makeSelectorAmfm(/* frequency= */ 96500u), "KOIT", "Celine Dion", "All By Myself"},
+            {makeSelectorAmfm(/* frequency= */ 97300u), "Alice@97.3", "Drops of Jupiter", "Train"},
+            {makeSelectorAmfm(/* frequency= */ 99700u), "99.7 Now!", "The Chainsmokers", "Closer"},
+            {makeSelectorAmfm(/* frequency= */ 101300u), "101-3 KISS-FM", "Justin Timberlake",
                 "Rock Your Body"},
-            {makeSelectorAmfm(/* frequency= */ 103700), "iHeart80s @ 103.7", "Michael Jackson",
+            {makeSelectorAmfm(/* frequency= */ 103700u), "iHeart80s @ 103.7", "Michael Jackson",
                 "Billie Jean"},
-            {makeSelectorAmfm(/* frequency= */ 106100), "106 KMEL", "Drake", "Marvins Room"},
-            {makeSelectorAmfm(/* frequency= */ 700), "700 AM", "Artist700", "Title700"},
-            {makeSelectorAmfm(/* frequency= */ 1700), "1700 AM", "Artist1700", "Title1700"},
+            {makeSelectorAmfm(/* frequency= */ 106100u), "106 KMEL", "Drake", "Marvins Room"},
+            {makeSelectorAmfm(/* frequency= */ 700u), "700 AM", "Artist700", "Title700"},
+            {makeSelectorAmfm(/* frequency= */ 1700u), "1700 AM", "Artist1700", "Title1700"},
         });
     // clang-format on
     return amFmRadioMock;
@@ -77,13 +77,13 @@
         "DAB radio mock",
         {
             {makeSelectorDab(/* sidExt= */ 0xA000000001u, /* ensemble= */ 0x0001u,
-                /* freq= */ 225648), "BBC Radio 1", "Khalid", "Talk"},
+                /* freq= */ 225648u), "BBC Radio 1", "Khalid", "Talk"},
             {makeSelectorDab(/* sidExt= */ 0xB000000001u, /* ensemble= */ 0x1001u,
-                /* freq= */ 222064), "Classic FM", "Jean Sibelius", "Andante Festivo"},
+                /* freq= */ 222064u), "Classic FM", "Jean Sibelius", "Andante Festivo"},
             {makeSelectorDab(/* sidExt= */ 0xB000000002u, /* ensemble= */ 0x1002u,
-                /* freq= */ 227360), "Absolute Radio", "Coldplay", "Clocks"},
+                /* freq= */ 227360u), "Absolute Radio", "Coldplay", "Clocks"},
             {makeSelectorDab(/* sidExt= */ 0xB000000002u, /* ensemble= */ 0x1002u,
-                /* freq= */ 222064), "Absolute Radio", "Coldplay", "Clocks"},
+                /* freq= */ 222064u), "Absolute Radio", "Coldplay", "Clocks"},
         });
     // clang-format on
     return dabRadioMock;
diff --git a/broadcastradio/common/utilsaidl/Utils.cpp b/broadcastradio/common/utilsaidl/Utils.cpp
index 0551bad..de4f529 100644
--- a/broadcastradio/common/utilsaidl/Utils.cpp
+++ b/broadcastradio/common/utilsaidl/Utils.cpp
@@ -204,7 +204,7 @@
 }
 
 bool isValid(const ProgramIdentifier& id) {
-    int64_t val = id.value;
+    uint64_t val = static_cast<uint64_t>(id.value);
     bool valid = true;
 
     auto expect = [&valid](bool condition, const string& message) {
@@ -231,11 +231,11 @@
             expect(val <= 0xFFFFu, "16bit id");
             break;
         case IdentifierType::HD_STATION_ID_EXT: {
-            int64_t stationId = val & 0xFFFFFFFF;  // 32bit
+            uint64_t stationId = val & 0xFFFFFFFF;  // 32bit
             val >>= 32;
-            int64_t subchannel = val & 0xF;  // 4bit
+            uint64_t subchannel = val & 0xF;  // 4bit
             val >>= 4;
-            int64_t freq = val & 0x3FFFF;  // 18bit
+            uint64_t freq = val & 0x3FFFF;  // 18bit
             expect(stationId != 0u, "HD station id != 0");
             expect(subchannel < 8u, "HD subch < 8");
             expect(freq > 100u, "f > 100kHz");
@@ -252,9 +252,9 @@
             break;
         }
         case IdentifierType::DAB_SID_EXT: {
-            int64_t sid = val & 0xFFFFFFFF;  // 32bit
+            uint64_t sid = val & 0xFFFFFFFF;  // 32bit
             val >>= 32;
-            int64_t ecc = val & 0xFF;  // 8bit
+            uint64_t ecc = val & 0xFF;  // 8bit
             expect(sid != 0u, "DAB SId != 0");
             expect(ecc >= 0xA0u && ecc <= 0xF6u, "Invalid ECC, see ETSI TS 101 756 V2.1.1");
             break;
@@ -305,19 +305,19 @@
     return {type, value};
 }
 
-ProgramSelector makeSelectorAmfm(int32_t frequency) {
+ProgramSelector makeSelectorAmfm(uint32_t frequency) {
     ProgramSelector sel = {};
     sel.primaryId = makeIdentifier(IdentifierType::AMFM_FREQUENCY_KHZ, frequency);
     return sel;
 }
 
-ProgramSelector makeSelectorDab(int64_t sidExt) {
+ProgramSelector makeSelectorDab(uint64_t sidExt) {
     ProgramSelector sel = {};
     sel.primaryId = makeIdentifier(IdentifierType::DAB_SID_EXT, sidExt);
     return sel;
 }
 
-ProgramSelector makeSelectorDab(int64_t sidExt, int32_t ensemble, int64_t freq) {
+ProgramSelector makeSelectorDab(uint64_t sidExt, uint32_t ensemble, uint64_t freq) {
     ProgramSelector sel = {};
     sel.primaryId = makeIdentifier(IdentifierType::DAB_SID_EXT, sidExt);
     vector<ProgramIdentifier> secondaryIds = {
diff --git a/broadcastradio/common/utilsaidl/include/broadcastradio-utils-aidl/Utils.h b/broadcastradio/common/utilsaidl/include/broadcastradio-utils-aidl/Utils.h
index ad075f2..ee85a17 100644
--- a/broadcastradio/common/utilsaidl/include/broadcastradio-utils-aidl/Utils.h
+++ b/broadcastradio/common/utilsaidl/include/broadcastradio-utils-aidl/Utils.h
@@ -137,9 +137,9 @@
 bool isValid(const ProgramSelector& sel);
 
 ProgramIdentifier makeIdentifier(IdentifierType type, int64_t value);
-ProgramSelector makeSelectorAmfm(int32_t frequency);
-ProgramSelector makeSelectorDab(int64_t sidExt);
-ProgramSelector makeSelectorDab(int64_t sidExt, int32_t ensemble, int64_t freq);
+ProgramSelector makeSelectorAmfm(uint32_t frequency);
+ProgramSelector makeSelectorDab(uint64_t sidExt);
+ProgramSelector makeSelectorDab(uint64_t sidExt, uint32_t ensemble, uint64_t freq);
 
 bool satisfies(const ProgramFilter& filter, const ProgramSelector& sel);
 
diff --git a/compatibility_matrices/compatibility_matrix.9.xml b/compatibility_matrices/compatibility_matrix.9.xml
index de2e1d1..831cebb 100644
--- a/compatibility_matrices/compatibility_matrix.9.xml
+++ b/compatibility_matrices/compatibility_matrix.9.xml
@@ -147,6 +147,14 @@
         </interface>
     </hal>
     <hal format="aidl" optional="true">
+        <name>android.hardware.bluetooth.ranging</name>
+        <version>1</version>
+        <interface>
+            <name>IBluetoothChannelSounding</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="aidl" optional="true">
         <name>android.hardware.bluetooth.finder</name>
         <version>1</version>
         <interface>
@@ -257,7 +265,7 @@
     </hal>
     <hal format="aidl" optional="true">
         <name>android.hardware.health</name>
-        <version>1-2</version>
+        <version>3</version>
         <interface>
             <name>IHealth</name>
             <instance>default</instance>
@@ -590,6 +598,14 @@
         </interface>
     </hal>
     <hal format="aidl" optional="true">
+        <name>android.hardware.threadnetwork</name>
+        <version>1</version>
+        <interface>
+            <name>IThreadChip</name>
+            <instance>chip0</instance>
+        </interface>
+    </hal>
+    <hal format="aidl" optional="true">
         <name>android.hardware.tv.hdmi.cec</name>
         <version>1</version>
         <interface>
diff --git a/drm/aidl/Android.bp b/drm/aidl/Android.bp
index fb04d84..afcb603 100644
--- a/drm/aidl/Android.bp
+++ b/drm/aidl/Android.bp
@@ -23,7 +23,7 @@
             sdk_version: "module_current",
         },
         ndk: {
-            min_sdk_version: "UpsideDownCake",
+            min_sdk_version: "34",
         },
     },
     double_loadable: true,
diff --git a/gnss/aidl/vts/gnss_hal_test.cpp b/gnss/aidl/vts/gnss_hal_test.cpp
index 4f5e6a0..5e2cbe3 100644
--- a/gnss/aidl/vts/gnss_hal_test.cpp
+++ b/gnss/aidl/vts/gnss_hal_test.cpp
@@ -486,8 +486,6 @@
 
     auto status = aidl_gnss_hal_->startSvStatus();
     EXPECT_TRUE(status.isOk());
-    ASSERT_TRUE(aidl_gnss_cb_->sv_info_list_timestamps_millis_cbq_.size() ==
-                aidl_gnss_cb_->sv_info_list_cbq_.size());
     long lastElapsedRealtimeMillis = 0;
     for (int i = 0; i < numMeasurementEvents; i++) {
         long timeStamp;
diff --git a/health/aidl/Android.bp b/health/aidl/Android.bp
index e288f17..4691dd6 100644
--- a/health/aidl/Android.bp
+++ b/health/aidl/Android.bp
@@ -48,7 +48,7 @@
         },
 
     ],
-    frozen: true,
+    frozen: false,
 
 }
 
@@ -80,7 +80,7 @@
     name: "android.hardware.health-translate-ndk",
     defaults: ["android.hardware.health-translate-ndk_defaults"],
     shared_libs: [
-        "android.hardware.health-V2-ndk",
+        "android.hardware.health-V3-ndk",
     ],
 }
 
@@ -97,7 +97,7 @@
     name: "android.hardware.health-translate-java",
     srcs: ["android/hardware/health/Translate.java"],
     libs: [
-        "android.hardware.health-V2-java",
+        "android.hardware.health-V3-java",
         "android.hardware.health-V2.0-java",
         "android.hardware.health-V2.1-java",
     ],
diff --git a/health/aidl/aidl_api/android.hardware.health/current/android/hardware/health/BatteryHealthData.aidl b/health/aidl/aidl_api/android.hardware.health/current/android/hardware/health/BatteryHealthData.aidl
index 2dd01b1..089c8ac 100644
--- a/health/aidl/aidl_api/android.hardware.health/current/android/hardware/health/BatteryHealthData.aidl
+++ b/health/aidl/aidl_api/android.hardware.health/current/android/hardware/health/BatteryHealthData.aidl
@@ -37,4 +37,6 @@
   long batteryManufacturingDateSeconds;
   long batteryFirstUsageSeconds;
   long batteryStateOfHealth;
+  @nullable String batterySerialNumber;
+  android.hardware.health.BatteryPartStatus batteryPartStatus = android.hardware.health.BatteryPartStatus.UNSUPPORTED;
 }
diff --git a/health/aidl/aidl_api/android.hardware.health/current/android/hardware/health/BatteryPartStatus.aidl b/health/aidl/aidl_api/android.hardware.health/current/android/hardware/health/BatteryPartStatus.aidl
new file mode 100644
index 0000000..e013e31
--- /dev/null
+++ b/health/aidl/aidl_api/android.hardware.health/current/android/hardware/health/BatteryPartStatus.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2023 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.health;
+@Backing(type="int") @VintfStability
+enum BatteryPartStatus {
+  UNSUPPORTED,
+  ORIGINAL,
+  REPLACED,
+}
diff --git a/health/aidl/android/hardware/health/BatteryHealthData.aidl b/health/aidl/android/hardware/health/BatteryHealthData.aidl
index 594bcce..7245298 100644
--- a/health/aidl/android/hardware/health/BatteryHealthData.aidl
+++ b/health/aidl/android/hardware/health/BatteryHealthData.aidl
@@ -16,6 +16,8 @@
 
 package android.hardware.health;
 
+import android.hardware.health.BatteryPartStatus;
+
 /*
  * Battery health data
  */
@@ -36,4 +38,14 @@
      * Otherwise, value must be in the range 0 to 100.
      */
     long batteryStateOfHealth;
+    /**
+     * Serial number of the battery. Null if not supported. If supported, a string of at least 6
+     * alphanumeric characters. Characters may either be upper or lower case, but for comparison
+     * and uniqueness purposes, must be treated as case-insensitive.
+     */
+    @nullable String batterySerialNumber;
+    /**
+     * Indicator for part originality of the battery.
+     */
+    BatteryPartStatus batteryPartStatus = BatteryPartStatus.UNSUPPORTED;
 }
diff --git a/health/aidl/android/hardware/health/BatteryPartStatus.aidl b/health/aidl/android/hardware/health/BatteryPartStatus.aidl
new file mode 100644
index 0000000..6c2060a
--- /dev/null
+++ b/health/aidl/android/hardware/health/BatteryPartStatus.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2023 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.
+ */
+
+package android.hardware.health;
+
+/**
+ * Possible values for BatteryPartStatus.
+ * Note: These are currently in sync with BatteryManager and must not
+ * be extended / altered.
+ */
+@VintfStability
+@Backing(type="int")
+enum BatteryPartStatus {
+    /**
+     * Device cannot differentiate an original battery from a replaced battery.
+     */
+    UNSUPPORTED = 0,
+    /**
+     * Device has the original battery it was manufactured with.
+     */
+    ORIGINAL = 1,
+    /**
+     * Device has a replaced battery.
+     */
+    REPLACED = 2,
+}
diff --git a/health/aidl/default/Android.bp b/health/aidl/default/Android.bp
index b51e4f3..2071f08 100644
--- a/health/aidl/default/Android.bp
+++ b/health/aidl/default/Android.bp
@@ -29,7 +29,7 @@
         "libcutils",
         "liblog",
         "libutils",
-        "android.hardware.health-V2-ndk",
+        "android.hardware.health-V3-ndk",
 
         // TODO(b/177269435): remove when BatteryMonitor works with AIDL HealthInfo.
         "libhidlbase",
@@ -48,7 +48,7 @@
     name: "libhealth_aidl_charger_defaults",
     shared_libs: [
         // common
-        "android.hardware.health-V2-ndk",
+        "android.hardware.health-V3-ndk",
         "libbase",
         "libcutils",
         "liblog",
@@ -195,7 +195,7 @@
         "service_fuzzer_defaults",
     ],
     static_libs: [
-        "android.hardware.health-V2-ndk",
+        "android.hardware.health-V3-ndk",
         "libbase",
         "liblog",
         "fuzz_libhealth_aidl_impl",
diff --git a/health/aidl/default/Health.cpp b/health/aidl/default/Health.cpp
index 1d8cc13..8b512c4 100644
--- a/health/aidl/default/Health.cpp
+++ b/health/aidl/default/Health.cpp
@@ -153,6 +153,8 @@
         !res.isOk()) {
         LOG(WARNING) << "Cannot get Battery_state_of_health: " << res.getDescription();
     }
+    out->batterySerialNumber = std::nullopt;
+    out->batteryPartStatus = BatteryPartStatus::UNSUPPORTED;
     return ndk::ScopedAStatus::ok();
 }
 
diff --git a/health/aidl/default/android.hardware.health-service.example.xml b/health/aidl/default/android.hardware.health-service.example.xml
index 1fe9b8d..2acaaba 100644
--- a/health/aidl/default/android.hardware.health-service.example.xml
+++ b/health/aidl/default/android.hardware.health-service.example.xml
@@ -1,7 +1,7 @@
 <manifest version="1.0" type="device">
     <hal format="aidl">
         <name>android.hardware.health</name>
-        <version>2</version>
+        <version>3</version>
         <fqname>IHealth/default</fqname>
     </hal>
 </manifest>
diff --git a/health/aidl/vts/functional/Android.bp b/health/aidl/vts/functional/Android.bp
index b735a87..6d2b530 100644
--- a/health/aidl/vts/functional/Android.bp
+++ b/health/aidl/vts/functional/Android.bp
@@ -39,7 +39,7 @@
         "libbinder_ndk",
     ],
     static_libs: [
-        "android.hardware.health-V2-ndk",
+        "android.hardware.health-V3-ndk",
         "libgmock",
     ],
     header_libs: [
diff --git a/health/aidl/vts/functional/VtsHalHealthTargetTest.cpp b/health/aidl/vts/functional/VtsHalHealthTargetTest.cpp
index 783ce11..9360789 100644
--- a/health/aidl/vts/functional/VtsHalHealthTargetTest.cpp
+++ b/health/aidl/vts/functional/VtsHalHealthTargetTest.cpp
@@ -84,6 +84,21 @@
     return AnyOfArray(enum_range<T>().begin(), enum_range<T>().end());
 }
 
+MATCHER(IsValidSerialNumber, "") {
+    if (!arg) {
+        return true;
+    }
+    if (arg->size() < 6) {
+        return false;
+    }
+    for (const auto& c : *arg) {
+        if (!isalnum(c)) {
+            return false;
+        }
+    }
+    return true;
+}
+
 class HealthAidl : public testing::TestWithParam<std::string> {
   public:
     void SetUp() override {
@@ -270,7 +285,7 @@
     ASSERT_THAT(static_cast<int>(value), AnyOf(Eq(1), Eq(4)));
 }
 
-MATCHER(IsValidHealthData, "") {
+MATCHER_P(IsValidHealthData, version, "") {
     *result_listener << "value is " << arg.toString() << ".";
     if (!ExplainMatchResult(Ge(-1), arg.batteryManufacturingDateSeconds, result_listener)) {
         *result_listener << " for batteryManufacturingDateSeconds.";
@@ -284,6 +299,15 @@
         *result_listener << " for batteryStateOfHealth.";
         return false;
     }
+    if (!ExplainMatchResult(IsValidSerialNumber(), arg.batterySerialNumber, result_listener)) {
+        *result_listener << " for batterySerialNumber.";
+        return false;
+    }
+    if (!ExplainMatchResult(IsValidEnum<BatteryPartStatus>(), arg.batteryPartStatus,
+                            result_listener)) {
+        *result_listener << " for batteryPartStatus.";
+        return false;
+    }
 
     return true;
 }
@@ -303,7 +327,7 @@
     status = health->getBatteryHealthData(&value);
     ASSERT_THAT(status, AnyOf(IsOk(), ExceptionIs(EX_UNSUPPORTED_OPERATION)));
     if (!status.isOk()) return;
-    ASSERT_THAT(value, IsValidHealthData());
+    ASSERT_THAT(value, IsValidHealthData(version));
 }
 
 MATCHER(IsValidStorageInfo, "") {
diff --git a/health/utils/libhealthshim/Android.bp b/health/utils/libhealthshim/Android.bp
index 14c32ae..b0ea743 100644
--- a/health/utils/libhealthshim/Android.bp
+++ b/health/utils/libhealthshim/Android.bp
@@ -34,7 +34,7 @@
         "-Werror",
     ],
     static_libs: [
-        "android.hardware.health-V2-ndk",
+        "android.hardware.health-V3-ndk",
         "android.hardware.health-translate-ndk",
         "android.hardware.health@1.0",
         "android.hardware.health@2.0",
diff --git a/health/utils/libhealthshim/shim.cpp b/health/utils/libhealthshim/shim.cpp
index 6a5f512..a5ba919 100644
--- a/health/utils/libhealthshim/shim.cpp
+++ b/health/utils/libhealthshim/shim.cpp
@@ -230,6 +230,7 @@
 ScopedAStatus HealthShim::getBatteryHealthData(BatteryHealthData* out) {
     out->batteryManufacturingDateSeconds = 0;
     out->batteryFirstUsageSeconds = 0;
+    out->batteryPartStatus = BatteryPartStatus::UNSUPPORTED;
     return ResultToStatus(Result::NOT_SUPPORTED);
 }
 
diff --git a/security/authgraph/aidl/Android.bp b/security/authgraph/aidl/Android.bp
index d94f640..f3d1281 100644
--- a/security/authgraph/aidl/Android.bp
+++ b/security/authgraph/aidl/Android.bp
@@ -34,7 +34,7 @@
             platform_apis: true,
         },
         ndk: {
-            apps_enabled: false,
+            enabled: true,
         },
         rust: {
             enabled: true,
diff --git a/security/authgraph/aidl/vts/functional/lib.rs b/security/authgraph/aidl/vts/functional/lib.rs
index da3fa1c..f4c1da9 100644
--- a/security/authgraph/aidl/vts/functional/lib.rs
+++ b/security/authgraph/aidl/vts/functional/lib.rs
@@ -26,6 +26,7 @@
 use authgraph_boringssl as boring;
 use authgraph_core::{error::Error as AgError, keyexchange as ke};
 use coset::CborSerializable;
+use std::{cell::RefCell, rc::Rc};
 
 pub mod sink;
 pub mod source;
@@ -34,7 +35,7 @@
 pub fn test_ag_participant() -> Result<ke::AuthGraphParticipant, AgError> {
     Ok(ke::AuthGraphParticipant::new(
         boring::crypto_trait_impls(),
-        Box::<boring::test_device::AgDevice>::default(),
+        Rc::new(RefCell::new(boring::test_device::AgDevice::default())),
         ke::MAX_OPENED_SESSIONS,
     )?)
 }
diff --git a/security/authgraph/default/src/fuzzer.rs b/security/authgraph/default/src/fuzzer.rs
index d401777..387d72f 100644
--- a/security/authgraph/default/src/fuzzer.rs
+++ b/security/authgraph/default/src/fuzzer.rs
@@ -22,10 +22,9 @@
 use authgraph_nonsecure::LocalTa;
 use binder_random_parcel_rs::fuzz_service;
 use libfuzzer_sys::fuzz_target;
-use std::sync::{Arc, Mutex};
 
 fuzz_target!(|data: &[u8]| {
     let local_ta = LocalTa::new().expect("Failed to create an AuthGraph local TA.");
-    let service = AuthGraphService::new_as_binder(Arc::new(Mutex::new(local_ta)));
+    let service = AuthGraphService::new_as_binder(local_ta);
     fuzz_service(&mut service.as_binder(), data);
 });
diff --git a/security/authgraph/default/src/lib.rs b/security/authgraph/default/src/lib.rs
index 14741aa..1f851b2 100644
--- a/security/authgraph/default/src/lib.rs
+++ b/security/authgraph/default/src/lib.rs
@@ -22,36 +22,62 @@
     ta::{AuthGraphTa, Role},
 };
 use authgraph_hal::channel::SerializedChannel;
-use std::sync::{Arc, Mutex};
+use std::cell::RefCell;
+use std::rc::Rc;
+use std::sync::{mpsc, Mutex};
 
 /// Implementation of the AuthGraph TA that runs locally in-process (and which is therefore
 /// insecure).
 pub struct LocalTa {
-    ta: Arc<Mutex<AuthGraphTa>>,
+    channels: Mutex<Channels>,
+}
+
+struct Channels {
+    in_tx: mpsc::Sender<Vec<u8>>,
+    out_rx: mpsc::Receiver<Vec<u8>>,
 }
 
 impl LocalTa {
     /// Create a new instance.
     pub fn new() -> Result<Self, error::Error> {
-        Ok(Self {
-            ta: Arc::new(Mutex::new(AuthGraphTa::new(
+        // Create a pair of channels to communicate with the TA thread.
+        let (in_tx, in_rx) = mpsc::channel();
+        let (out_tx, out_rx) = mpsc::channel();
+
+        // The TA code expects to run single threaded, so spawn a thread to run it in.
+        std::thread::spawn(move || {
+            let mut ta = AuthGraphTa::new(
                 keyexchange::AuthGraphParticipant::new(
                     boring::crypto_trait_impls(),
-                    Box::<boring::test_device::AgDevice>::default(),
+                    Rc::new(RefCell::new(boring::test_device::AgDevice::default())),
                     keyexchange::MAX_OPENED_SESSIONS,
-                )?,
+                )
+                .expect("failed to create AG participant"),
                 Role::Both,
-            ))),
+            );
+            // Loop forever processing request messages.
+            loop {
+                let req_data: Vec<u8> = in_rx.recv().expect("failed to receive next req");
+                let rsp_data = ta.process(&req_data);
+                out_tx.send(rsp_data).expect("failed to send out rsp");
+            }
+        });
+        Ok(Self {
+            channels: Mutex::new(Channels { in_tx, out_rx }),
         })
     }
 }
 
-/// Pretend to be a serialized channel to the TA, but actually just directly invoke the TA with
-/// incoming requests.
 impl SerializedChannel for LocalTa {
     const MAX_SIZE: usize = usize::MAX;
 
-    fn execute(&mut self, req_data: &[u8]) -> binder::Result<Vec<u8>> {
-        Ok(self.ta.lock().unwrap().process(req_data))
+    fn execute(&self, req_data: &[u8]) -> binder::Result<Vec<u8>> {
+        // Serialize across both request and response.
+        let channels = self.channels.lock().unwrap();
+        channels
+            .in_tx
+            .send(req_data.to_vec())
+            .expect("failed to send in request");
+        Ok(channels.out_rx.recv().expect("failed to receive response"))
     }
 }
diff --git a/security/authgraph/default/src/main.rs b/security/authgraph/default/src/main.rs
index 81f2dd6..ced7567 100644
--- a/security/authgraph/default/src/main.rs
+++ b/security/authgraph/default/src/main.rs
@@ -25,7 +25,6 @@
 use authgraph_hal::service;
 use authgraph_nonsecure::LocalTa;
 use log::{error, info};
-use std::sync::{Arc, Mutex};
 
 static SERVICE_NAME: &str = "android.hardware.security.authgraph.IAuthGraphKeyExchange";
 static SERVICE_INSTANCE: &str = "nonsecure";
@@ -65,9 +64,8 @@
     binder::ProcessState::start_thread_pool();
 
     // Register the service
-    let local_ta =
-        LocalTa::new().map_err(|e| format!("Failed to create the TA because: {e:?}"))?;
-    let service = service::AuthGraphService::new_as_binder(Arc::new(Mutex::new(local_ta)));
+    let local_ta = LocalTa::new().map_err(|e| format!("Failed to create the TA because: {e:?}"))?;
+    let service = service::AuthGraphService::new_as_binder(local_ta);
     let service_name = format!("{}/{}", SERVICE_NAME, SERVICE_INSTANCE);
     binder::add_service(&service_name, service.as_binder()).map_err(|e| {
         format!(
diff --git a/security/keymint/support/include/remote_prov/remote_prov_utils.h b/security/keymint/support/include/remote_prov/remote_prov_utils.h
index 79189a1..b8c69eb 100644
--- a/security/keymint/support/include/remote_prov/remote_prov_utils.h
+++ b/security/keymint/support/include/remote_prov/remote_prov_utils.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <memory>
+#include <string>
 #include <vector>
 #include "aidl/android/hardware/security/keymint/IRemotelyProvisionedComponent.h"
 
@@ -129,8 +130,8 @@
  *     "name": <string>
  *   }
  */
-JsonOutput jsonEncodeCsrWithBuild(const std::string instance_name,
-                                  const cppbor::Array& csr);
+JsonOutput jsonEncodeCsrWithBuild(const std::string& instance_name, const cppbor::Array& csr,
+                                  const std::string& serialno_prop);
 
 /**
  * Parses a DeviceInfo structure from the given CBOR data. The parsed data is then validated to
diff --git a/security/keymint/support/remote_prov_utils.cpp b/security/keymint/support/remote_prov_utils.cpp
index 6edbfc1..a830041 100644
--- a/security/keymint/support/remote_prov_utils.cpp
+++ b/security/keymint/support/remote_prov_utils.cpp
@@ -337,9 +337,9 @@
     return result;
 }
 
-JsonOutput jsonEncodeCsrWithBuild(const std::string instance_name, const cppbor::Array& csr) {
+JsonOutput jsonEncodeCsrWithBuild(const std::string& instance_name, const cppbor::Array& csr,
+                                  const std::string& serialno_prop) {
     const std::string kFingerprintProp = "ro.build.fingerprint";
-    const std::string kSerialNoProp = "ro.serialno";
 
     if (!::android::base::WaitForPropertyCreation(kFingerprintProp)) {
         return JsonOutput::Error("Unable to read build fingerprint");
@@ -364,7 +364,7 @@
     Json::Value json(Json::objectValue);
     json["name"] = instance_name;
     json["build_fingerprint"] = ::android::base::GetProperty(kFingerprintProp, /*default=*/"");
-    json["serialno"] = ::android::base::GetProperty(kSerialNoProp, /*default=*/"");
+    json["serialno"] = ::android::base::GetProperty(serialno_prop, /*default=*/"");
     json["csr"] = base64.data();  // Boring writes a NUL-terminated c-string
 
     Json::StreamWriterBuilder factory;
@@ -978,7 +978,7 @@
             return hwtrust::DiceChain::Kind::kVsr13;
         case __ANDROID_API_U__:
             return hwtrust::DiceChain::Kind::kVsr14;
-        case __ANDROID_API_V__:
+        case 202404: /* TODO(b/315056516) Use a version macro for vendor API 24Q2 */
             return hwtrust::DiceChain::Kind::kVsr15;
         default:
             return "Unsupported vendor API level: " + std::to_string(vendor_api_level);
diff --git a/security/keymint/support/remote_prov_utils_test.cpp b/security/keymint/support/remote_prov_utils_test.cpp
index eaaba45..630f7bb 100644
--- a/security/keymint/support/remote_prov_utils_test.cpp
+++ b/security/keymint/support/remote_prov_utils_test.cpp
@@ -182,10 +182,11 @@
 }
 
 TEST(RemoteProvUtilsTest, JsonEncodeCsr) {
+    const std::string kSerialNoProp = "ro.serialno";
     cppbor::Array array;
     array.add(1);
 
-    auto [json, error] = jsonEncodeCsrWithBuild(std::string("test"), array);
+    auto [json, error] = jsonEncodeCsrWithBuild(std::string("test"), array, kSerialNoProp);
 
     ASSERT_TRUE(error.empty()) << error;
 
diff --git a/security/rkp/README.md b/security/rkp/README.md
index 71f70cb..2180d0f 100644
--- a/security/rkp/README.md
+++ b/security/rkp/README.md
@@ -196,8 +196,8 @@
 privileged vm, the RKP VM, is reponsible for generating and managing the keys for client
 VMs that run virtualized workloads. See the following for more background information on the
 RKP VM:
-*    [rkp-vm]: https://android.googlesource.com/platform/packages/modules/Virtualization/+/main/service_vm/README.md#rkp-vm-remote-key-provisioning-virtual-machine
-*    [rkp-service]: https://source.android.com/docs/core/ota/modular-system/remote-key-provisioning#stack-architecture
+*    [rkp-vm](https://android.googlesource.com/platform/packages/modules/Virtualization/+/main/service_vm/README.md#rkp-vm-remote-key-provisioning-virtual-machine)
+*    [rkp-service](https://source.android.com/docs/core/ota/modular-system/remote-key-provisioning#stack-architecture)
 
 It is important to distinquish the RKP VM from other components, such as KeyMint. An
 [RKP VM marker](https://pigweed.googlesource.com/open-dice/+/HEAD/docs/android.md#configuration-descriptor)
diff --git a/security/secretkeeper/OWNERS b/security/secretkeeper/OWNERS
new file mode 100644
index 0000000..acf4c6c
--- /dev/null
+++ b/security/secretkeeper/OWNERS
@@ -0,0 +1,6 @@
+# Bug component: 867125
+
+alanstokes@google.com
+drysdale@google.com
+hasinitg@google.com
+shikhapanwar@google.com
diff --git a/security/secretkeeper/aidl/Android.bp b/security/secretkeeper/aidl/Android.bp
index c77d299..ac923ca 100644
--- a/security/secretkeeper/aidl/Android.bp
+++ b/security/secretkeeper/aidl/Android.bp
@@ -20,8 +20,15 @@
     name: "android.hardware.security.secretkeeper",
     vendor_available: true,
     srcs: ["android/hardware/security/secretkeeper/*.aidl"],
+    imports: [
+        "android.hardware.security.authgraph-V1",
+    ],
     stability: "vintf",
+    frozen: false,
     backend: {
+        java: {
+            enabled: false,
+        },
         ndk: {
             enabled: true,
         },
@@ -34,3 +41,44 @@
         },
     },
 }
+
+// cc_defaults that includes the latest Secretkeeper AIDL library.
+// Modules that depend on Secretkeeper directly can include this cc_defaults to avoid
+// managing dependency versions explicitly.
+cc_defaults {
+    name: "secretkeeper_use_latest_hal_aidl_ndk_static",
+    static_libs: [
+        "android.hardware.security.secretkeeper-V1-ndk",
+    ],
+}
+
+cc_defaults {
+    name: "secretkeeper_use_latest_hal_aidl_ndk_shared",
+    shared_libs: [
+        "android.hardware.security.secretkeeper-V1-ndk",
+    ],
+}
+
+cc_defaults {
+    name: "secretkeeper_use_latest_hal_aidl_cpp_static",
+    static_libs: [
+        "android.hardware.security.secretkeeper-V1-cpp",
+    ],
+}
+
+cc_defaults {
+    name: "secretkeeper_use_latest_hal_aidl_cpp_shared",
+    shared_libs: [
+        "android.hardware.security.secretkeeper-V1-cpp",
+    ],
+}
+
+// A rust_defaults that includes the latest Secretkeeper AIDL library.
+// Modules that depend on Secretkeeper directly can include this rust_defaults to avoid
+// managing dependency versions explicitly.
+rust_defaults {
+    name: "secretkeeper_use_latest_hal_aidl_rust",
+    rustlibs: [
+        "android.hardware.security.secretkeeper-V1-rust",
+    ],
+}
diff --git a/security/secretkeeper/aidl/aidl_api/android.hardware.security.secretkeeper/current/android/hardware/security/secretkeeper/ISecretkeeper.aidl b/security/secretkeeper/aidl/aidl_api/android.hardware.security.secretkeeper/current/android/hardware/security/secretkeeper/ISecretkeeper.aidl
index 2eb33c5..023fc8f 100644
--- a/security/secretkeeper/aidl/aidl_api/android.hardware.security.secretkeeper/current/android/hardware/security/secretkeeper/ISecretkeeper.aidl
+++ b/security/secretkeeper/aidl/aidl_api/android.hardware.security.secretkeeper/current/android/hardware/security/secretkeeper/ISecretkeeper.aidl
@@ -34,5 +34,6 @@
 package android.hardware.security.secretkeeper;
 @VintfStability
 interface ISecretkeeper {
+  android.hardware.security.authgraph.IAuthGraphKeyExchange getAuthGraphKe();
   byte[] processSecretManagementRequest(in byte[] request);
 }
diff --git a/security/secretkeeper/aidl/android/hardware/security/secretkeeper/ISecretkeeper.aidl b/security/secretkeeper/aidl/android/hardware/security/secretkeeper/ISecretkeeper.aidl
index af715a9..1f4768a 100644
--- a/security/secretkeeper/aidl/android/hardware/security/secretkeeper/ISecretkeeper.aidl
+++ b/security/secretkeeper/aidl/android/hardware/security/secretkeeper/ISecretkeeper.aidl
@@ -16,6 +16,8 @@
 
 package android.hardware.security.secretkeeper;
 
+import android.hardware.security.authgraph.IAuthGraphKeyExchange;
+
 @VintfStability
 /**
  * Secretkeeper service definition.
@@ -29,17 +31,22 @@
  * - A completely separate, purpose-built and certified secure CPU.
  *
  * TODO(b/291224769): Extend the HAL interface to include:
- * 1. Session setup api: This is used to perform cryptographic operations that allow shared keys to
- * be exchanged between session participants, typically (but not necessarily) a pVM instance and
- * Secretkeeper. This session setup is based on public key cryptography.
- * 2. Dice policy operation - These allow sealing of the secrets with a class of Dice chains.
+ * 1. Dice policy operation - These allow sealing of the secrets with a class of Dice chains.
  * Typical operations are (securely) updating the dice policy sealing the Secrets above. These
  * operations are core to AntiRollback protected secrets - ie, ensuring secrets of a pVM are only
  * accessible to same or higher versions of the images.
- * 3. Maintenance api: This is required for removing the Secretkeeper entries for obsolete pvMs.
+ * 2. Maintenance api: This is required for removing the Secretkeeper entries for obsolete pvMs.
  */
 interface ISecretkeeper {
     /**
+     * Retrieve the instance of the `IAuthGraphKeyExchange` HAL that should be used for shared
+     * session key establishment.  These keys are used to perform encryption of messages as
+     * described in SecretManagement.cddl, allowing the client and Secretkeeper to have a
+     * cryptographically secure channel.
+     */
+    IAuthGraphKeyExchange getAuthGraphKe();
+
+    /**
      * processSecretManagementRequest method is used for interacting with the Secret Management API
      *
      * Secret Management API: The clients can use this API to store (& get) 32 bytes of data.
diff --git a/security/secretkeeper/aidl/vts/Android.bp b/security/secretkeeper/aidl/vts/Android.bp
index 6818298..93192e9 100644
--- a/security/secretkeeper/aidl/vts/Android.bp
+++ b/security/secretkeeper/aidl/vts/Android.bp
@@ -28,6 +28,9 @@
     rustlibs: [
         "libsecretkeeper_comm_nostd",
         "android.hardware.security.secretkeeper-V1-rust",
+        "libauthgraph_core",
+        "libcoset",
+        "libauthgraph_vts_test",
         "libbinder_rs",
         "liblog_rust",
     ],
diff --git a/security/secretkeeper/aidl/vts/secretkeeper_test_client.rs b/security/secretkeeper/aidl/vts/secretkeeper_test_client.rs
index 28923f7..8c6b4fe 100644
--- a/security/secretkeeper/aidl/vts/secretkeeper_test_client.rs
+++ b/security/secretkeeper/aidl/vts/secretkeeper_test_client.rs
@@ -16,6 +16,7 @@
 
 #[cfg(test)]
 use binder::StatusCode;
+use coset::CborSerializable;
 use log::warn;
 use secretkeeper_comm::data_types::error::SecretkeeperError;
 use secretkeeper_comm::data_types::request::Request;
@@ -25,6 +26,8 @@
 use secretkeeper_comm::data_types::response::Response;
 use secretkeeper_comm::data_types::packet::{ResponsePacket, ResponseType};
 use android_hardware_security_secretkeeper::aidl::android::hardware::security::secretkeeper::ISecretkeeper::ISecretkeeper;
+use authgraph_vts_test as ag_vts;
+use authgraph_core::key;
 
 const SECRETKEEPER_IDENTIFIER: &str =
     "android.hardware.security.secretkeeper.ISecretkeeper/nonsecure";
@@ -42,6 +45,57 @@
         }
     }
 }
+fn authgraph_key_exchange(sk: binder::Strong<dyn ISecretkeeper>) -> [key::AesKey; 2] {
+    let sink = sk.getAuthGraphKe().expect("failed to get AuthGraph");
+    let mut source = ag_vts::test_ag_participant().expect("failed to create a local source");
+    ag_vts::sink::test_mainline(&mut source, sink)
+}
+
+/// Test that the AuthGraph instance returned by SecretKeeper correctly performs
+/// mainline key exchange against a local source implementation.
+#[test]
+fn authgraph_mainline() {
+    let sk = match get_connection() {
+        Some(sk) => sk,
+        None => {
+            warn!("Secretkeeper HAL is unavailable, skipping test");
+            return;
+        }
+    };
+    let _aes_keys = authgraph_key_exchange(sk);
+}
+
+/// Test that the AuthGraph instance returned by SecretKeeper correctly rejects
+/// a corrupted session ID signature.
+#[test]
+fn authgraph_corrupt_sig() {
+    let sk = match get_connection() {
+        Some(sk) => sk,
+        None => {
+            warn!("Secretkeeper HAL is unavailable, skipping test");
+            return;
+        }
+    };
+    let sink = sk.getAuthGraphKe().expect("failed to get AuthGraph");
+    let mut source = ag_vts::test_ag_participant().expect("failed to create a local source");
+    ag_vts::sink::test_corrupt_sig(&mut source, sink);
+}
+
+/// Test that the AuthGraph instance returned by SecretKeeper correctly detects
+/// when corrupted keys are returned to it.
+#[test]
+fn authgraph_corrupt_keys() {
+    let sk = match get_connection() {
+        Some(sk) => sk,
+        None => {
+            warn!("Secretkeeper HAL is unavailable, skipping test");
+            return;
+        }
+    };
+    let sink = sk.getAuthGraphKe().expect("failed to get AuthGraph");
+    let mut source = ag_vts::test_ag_participant().expect("failed to create a local source");
+    ag_vts::sink::test_corrupt_keys(&mut source, sink);
+}
 
 // TODO(b/2797757): Add tests that match different HAL defined objects (like request/response)
 // with expected bytes.
@@ -57,7 +111,7 @@
     };
     let request = GetVersionRequest {};
     let request_packet = request.serialize_to_packet();
-    let request_bytes = request_packet.into_bytes().unwrap();
+    let request_bytes = request_packet.to_vec().unwrap();
 
     // TODO(b/291224769) The request will need to be encrypted & response need to be decrypted
     // with key & related artifacts pre-shared via Authgraph Key Exchange HAL.
@@ -66,14 +120,14 @@
         .processSecretManagementRequest(&request_bytes)
         .unwrap();
 
-    let response_packet = ResponsePacket::from_bytes(&response_bytes).unwrap();
+    let response_packet = ResponsePacket::from_slice(&response_bytes).unwrap();
     assert_eq!(
         response_packet.response_type().unwrap(),
         ResponseType::Success
     );
     let get_version_response =
         *GetVersionResponse::deserialize_from_packet(response_packet).unwrap();
-    assert_eq!(get_version_response.version(), CURRENT_VERSION);
+    assert_eq!(get_version_response.version, CURRENT_VERSION);
 }
 
 #[test]
@@ -87,7 +141,7 @@
     };
     let request = GetVersionRequest {};
     let request_packet = request.serialize_to_packet();
-    let mut request_bytes = request_packet.into_bytes().unwrap();
+    let mut request_bytes = request_packet.to_vec().unwrap();
 
     // Deform the request
     request_bytes[0] = !request_bytes[0];
@@ -99,7 +153,7 @@
         .processSecretManagementRequest(&request_bytes)
         .unwrap();
 
-    let response_packet = ResponsePacket::from_bytes(&response_bytes).unwrap();
+    let response_packet = ResponsePacket::from_slice(&response_bytes).unwrap();
     assert_eq!(
         response_packet.response_type().unwrap(),
         ResponseType::Error
diff --git a/security/secretkeeper/default/Android.bp b/security/secretkeeper/default/Android.bp
index 8240b89..6612ea2 100644
--- a/security/secretkeeper/default/Android.bp
+++ b/security/secretkeeper/default/Android.bp
@@ -24,12 +24,19 @@
     vendor: true,
     installable: false, // install APEX
     prefer_rlib: true,
+    defaults: [
+        "authgraph_use_latest_hal_aidl_rust",
+    ],
     rustlibs: [
         "android.hardware.security.secretkeeper-V1-rust",
         "libandroid_logger",
+        "libauthgraph_boringssl",
+        "libauthgraph_core",
+        "libauthgraph_hal",
         "libbinder_rs",
         "liblog_rust",
-        "libsecretkeeper_comm_nostd",
+        "libsecretkeeper_core_nostd",
+        "libsecretkeeper_hal",
     ],
     srcs: [
         "src/main.rs",
diff --git a/security/secretkeeper/default/src/main.rs b/security/secretkeeper/default/src/main.rs
index 2d367c5..a291017 100644
--- a/security/secretkeeper/default/src/main.rs
+++ b/security/secretkeeper/default/src/main.rs
@@ -14,80 +14,106 @@
  * limitations under the License.
  */
 
-use binder::{BinderFeatures, Interface};
+//! Non-secure implementation of the Secretkeeper HAL.
+
 use log::{error, info, Level};
-use secretkeeper_comm::data_types::error::SecretkeeperError;
-use secretkeeper_comm::data_types::packet::{RequestPacket, ResponsePacket};
-use secretkeeper_comm::data_types::request::Request;
-use secretkeeper_comm::data_types::request_response_impl::{
-    GetVersionRequest, GetVersionResponse, Opcode,
-};
-use secretkeeper_comm::data_types::response::Response;
-
+use std::sync::{Arc, Mutex};
+use authgraph_boringssl as boring;
+use authgraph_core::ta::{Role, AuthGraphTa};
+use authgraph_core::keyexchange::{MAX_OPENED_SESSIONS, AuthGraphParticipant};
+use secretkeeper_core::ta::SecretkeeperTa;
+use secretkeeper_hal::SecretkeeperService;
+use authgraph_hal::channel::SerializedChannel;
 use android_hardware_security_secretkeeper::aidl::android::hardware::security::secretkeeper::ISecretkeeper::{
-    BnSecretkeeper, BpSecretkeeper, ISecretkeeper,
+    ISecretkeeper, BpSecretkeeper,
 };
+use std::cell::RefCell;
+use std::rc::Rc;
+use std::sync::mpsc;
 
-const CURRENT_VERSION: u64 = 1;
+/// Implementation of the Secrekeeper TA that runs locally in-process (and which is therefore
+/// insecure).
+pub struct LocalTa {
+    in_tx: mpsc::Sender<Vec<u8>>,
+    out_rx: mpsc::Receiver<Vec<u8>>,
+}
 
-#[derive(Debug, Default)]
-pub struct NonSecureSecretkeeper;
+/// Prefix byte for messages intended for the AuthGraph TA.
+const AG_MESSAGE_PREFIX: u8 = 0x00;
+/// Prefix byte for messages intended for the Secretkeeper TA.
+const SK_MESSAGE_PREFIX: u8 = 0x01;
 
-impl Interface for NonSecureSecretkeeper {}
+impl LocalTa {
+    /// Create a new instance.
+    pub fn new() -> Self {
+        // Create a pair of channels to communicate with the TA thread.
+        let (in_tx, in_rx) = mpsc::channel();
+        let (out_tx, out_rx) = mpsc::channel();
 
-impl ISecretkeeper for NonSecureSecretkeeper {
-    fn processSecretManagementRequest(&self, request: &[u8]) -> binder::Result<Vec<u8>> {
-        Ok(self.process_opaque_request(request))
+        // The TA code expects to run single threaded, so spawn a thread to run it in.
+        std::thread::spawn(move || {
+            let mut crypto_impls = boring::crypto_trait_impls();
+            let sk_ta = Rc::new(RefCell::new(
+                SecretkeeperTa::new(&mut crypto_impls)
+                    .expect("Failed to create local Secretkeeper TA"),
+            ));
+            let mut ag_ta = AuthGraphTa::new(
+                AuthGraphParticipant::new(crypto_impls, sk_ta.clone(), MAX_OPENED_SESSIONS)
+                    .expect("Failed to create local AuthGraph TA"),
+                Role::Sink,
+            );
+
+            // Loop forever processing request messages.
+            loop {
+                let req_data: Vec<u8> = in_rx.recv().expect("failed to receive next req");
+                let rsp_data = match req_data[0] {
+                    AG_MESSAGE_PREFIX => ag_ta.process(&req_data[1..]),
+                    SK_MESSAGE_PREFIX => {
+                        // It's safe to `borrow_mut()` because this code is not a callback
+                        // from AuthGraph (the only other holder of an `Rc`), and so there
+                        // can be no live `borrow()`s in this (single) thread.
+                        sk_ta.borrow_mut().process(&req_data[1..])
+                    }
+                    prefix => panic!("unexpected messageprefix {prefix}!"),
+                };
+                out_tx.send(rsp_data).expect("failed to send out rsp");
+            }
+        });
+        Self { in_tx, out_rx }
+    }
+
+    fn execute_for(&mut self, prefix: u8, req_data: &[u8]) -> Vec<u8> {
+        let mut prefixed_req = Vec::with_capacity(req_data.len() + 1);
+        prefixed_req.push(prefix);
+        prefixed_req.extend_from_slice(req_data);
+        self.in_tx
+            .send(prefixed_req)
+            .expect("failed to send in request");
+        self.out_rx.recv().expect("failed to receive response")
     }
 }
 
-impl NonSecureSecretkeeper {
-    // A set of requests to Secretkeeper are 'opaque' - encrypted bytes with inner structure
-    // described by CDDL. They need to be decrypted, deserialized and processed accordingly.
-    fn process_opaque_request(&self, request: &[u8]) -> Vec<u8> {
-        // TODO(b/291224769) The request will need to be decrypted & response need to be encrypted
-        // with key & related artifacts pre-shared via Authgraph Key Exchange HAL.
-        self.process_opaque_request_unhandled_error(request)
-            .unwrap_or_else(
-                // SecretkeeperError is also a valid 'Response', serialize to a response packet.
-                |sk_err| {
-                    Response::serialize_to_packet(&sk_err)
-                        .into_bytes()
-                        .expect("Panicking due to serialization failing")
-                },
-            )
+pub struct AuthGraphChannel(Arc<Mutex<LocalTa>>);
+impl SerializedChannel for AuthGraphChannel {
+    const MAX_SIZE: usize = usize::MAX;
+    fn execute(&self, req_data: &[u8]) -> binder::Result<Vec<u8>> {
+        Ok(self
+            .0
+            .lock()
+            .unwrap()
+            .execute_for(AG_MESSAGE_PREFIX, req_data))
     }
+}
 
-    fn process_opaque_request_unhandled_error(
-        &self,
-        request: &[u8],
-    ) -> Result<Vec<u8>, SecretkeeperError> {
-        let request_packet = RequestPacket::from_bytes(request).map_err(|e| {
-            error!("Failed to get Request packet from bytes: {:?}", e);
-            SecretkeeperError::RequestMalformed
-        })?;
-        let response_packet = match request_packet
-            .opcode()
-            .map_err(|_| SecretkeeperError::RequestMalformed)?
-        {
-            Opcode::GetVersion => Self::process_get_version_request(request_packet)?,
-            _ => todo!("TODO(b/291224769): Unimplemented operations"),
-        };
-
-        response_packet
-            .into_bytes()
-            .map_err(|_| SecretkeeperError::UnexpectedServerError)
-    }
-
-    fn process_get_version_request(
-        request: RequestPacket,
-    ) -> Result<ResponsePacket, SecretkeeperError> {
-        // Deserialization really just verifies the structural integrity of the request such
-        // as args being empty.
-        let _request = GetVersionRequest::deserialize_from_packet(request)
-            .map_err(|_| SecretkeeperError::RequestMalformed)?;
-        let response = GetVersionResponse::new(CURRENT_VERSION);
-        Ok(response.serialize_to_packet())
+pub struct SecretkeeperChannel(Arc<Mutex<LocalTa>>);
+impl SerializedChannel for SecretkeeperChannel {
+    const MAX_SIZE: usize = usize::MAX;
+    fn execute(&self, req_data: &[u8]) -> binder::Result<Vec<u8>> {
+        Ok(self
+            .0
+            .lock()
+            .unwrap()
+            .execute_for(SK_MESSAGE_PREFIX, req_data))
     }
 }
 
@@ -104,17 +130,17 @@
         error!("{}", panic_info);
     }));
 
-    let service = NonSecureSecretkeeper::default();
-    let service_binder = BnSecretkeeper::new_binder(service, BinderFeatures::default());
+    let ta = Arc::new(Mutex::new(LocalTa::new()));
+    let ag_channel = AuthGraphChannel(ta.clone());
+    let sk_channel = SecretkeeperChannel(ta.clone());
+
+    let service = SecretkeeperService::new_as_binder(sk_channel, ag_channel);
     let service_name = format!(
         "{}/nonsecure",
         <BpSecretkeeper as ISecretkeeper>::get_descriptor()
     );
-    binder::add_service(&service_name, service_binder.as_binder()).unwrap_or_else(|e| {
-        panic!(
-            "Failed to register service {} because of {:?}.",
-            service_name, e
-        );
+    binder::add_service(&service_name, service.as_binder()).unwrap_or_else(|e| {
+        panic!("Failed to register service {service_name} because of {e:?}.",);
     });
     info!("Registered Binder service, joining threadpool.");
     binder::ProcessState::join_thread_pool();
diff --git a/sensors/aidl/default/Android.bp b/sensors/aidl/default/Android.bp
index 384ee97..08ee773 100644
--- a/sensors/aidl/default/Android.bp
+++ b/sensors/aidl/default/Android.bp
@@ -23,18 +23,6 @@
     default_applicable_licenses: ["hardware_interfaces_license"],
 }
 
-filegroup {
-    name: "sensors-default.rc",
-    srcs: ["sensors-default.rc"],
-}
-
-prebuilt_etc {
-    name: "sensors-default.xml",
-    src: "sensors-default.xml",
-    sub_dir: "vintf",
-    installable: false,
-}
-
 cc_library_static {
     name: "libsensorsexampleimpl",
     vendor: true,
@@ -59,21 +47,62 @@
 cc_binary {
     name: "android.hardware.sensors-service.example",
     relative_install_path: "hw",
-    init_rc: [":sensors-default.rc"],
-    vintf_fragments: [":sensors-default.xml"],
+    installable: false, // install APEX below
+
     vendor: true,
     shared_libs: [
-        "libbase",
         "libbinder_ndk",
-        "libfmq",
-        "libpower",
-        "libcutils",
         "liblog",
-        "libutils",
-        "android.hardware.sensors-V2-ndk",
     ],
     static_libs: [
+        "android.hardware.common-V2-ndk",
+        "android.hardware.common.fmq-V1-ndk",
+        "android.hardware.sensors-V2-ndk",
+        "android.system.suspend-V1-ndk",
+        "libbase",
+        "libcutils",
+        "libfmq",
+        "libpower",
         "libsensorsexampleimpl",
+        "libutils",
     ],
     srcs: ["main.cpp"],
 }
+
+prebuilt_etc {
+    name: "sensors-default.rc",
+    src: "sensors-default.rc",
+    installable: false,
+}
+
+prebuilt_etc {
+    name: "sensors-default.xml",
+    src: "sensors-default.xml",
+    sub_dir: "vintf",
+    installable: false,
+}
+
+// Default vendor APEX for android.hardware.sensors.
+// Custom implementations may use override_apex based on this APEX.
+apex {
+    name: "com.android.hardware.sensors",
+    manifest: "apex_manifest.json",
+    key: "com.android.hardware.key",
+    certificate: ":com.android.hardware.certificate",
+    file_contexts: "file_contexts",
+    updatable: false,
+    vendor: true,
+
+    binaries: ["android.hardware.sensors-service.example"],
+    prebuilts: [
+        "sensors-default.rc", // init rc
+        "sensors-default.xml", // vintf fragment
+        "android.hardware.sensor.ambient_temperature.prebuilt.xml",
+        "android.hardware.sensor.barometer.prebuilt.xml",
+        "android.hardware.sensor.gyroscope.prebuilt.xml",
+        "android.hardware.sensor.hinge_angle.prebuilt.xml",
+        "android.hardware.sensor.light.prebuilt.xml",
+        "android.hardware.sensor.proximity.prebuilt.xml",
+        "android.hardware.sensor.relative_humidity.prebuilt.xml",
+    ],
+}
diff --git a/sensors/aidl/default/apex/Android.bp b/sensors/aidl/default/apex/Android.bp
deleted file mode 100644
index 5482086..0000000
--- a/sensors/aidl/default/apex/Android.bp
+++ /dev/null
@@ -1,41 +0,0 @@
-package {
-    default_applicable_licenses: ["hardware_interfaces_license"],
-}
-
-genrule {
-    name: "com.android.hardware.sensors.rc-gen",
-    srcs: [":sensors-default.rc"],
-    out: ["com.android.hardware.sensors.rc"],
-    cmd: "sed -E 's/\\/vendor/\\/apex\\/com.android.hardware.sensors/' $(in) > $(out)",
-}
-
-prebuilt_etc {
-    name: "com.android.hardware.sensors.rc",
-    src: ":com.android.hardware.sensors.rc-gen",
-    installable: false,
-}
-
-// Default vendor APEX for android.hardware.sensors.
-// Custom implementations may use override_apex based on this APEX.
-apex {
-    name: "com.android.hardware.sensors",
-    manifest: "apex_manifest.json",
-    key: "com.android.hardware.key",
-    certificate: ":com.android.hardware.certificate",
-    file_contexts: "file_contexts",
-    updatable: false,
-    vendor: true,
-
-    binaries: ["android.hardware.sensors-service.example"],
-    prebuilts: [
-        "com.android.hardware.sensors.rc", // init rc
-        "sensors-default.xml", // vintf fragment
-        "android.hardware.sensor.ambient_temperature.prebuilt.xml",
-        "android.hardware.sensor.barometer.prebuilt.xml",
-        "android.hardware.sensor.gyroscope.prebuilt.xml",
-        "android.hardware.sensor.hinge_angle.prebuilt.xml",
-        "android.hardware.sensor.light.prebuilt.xml",
-        "android.hardware.sensor.proximity.prebuilt.xml",
-        "android.hardware.sensor.relative_humidity.prebuilt.xml",
-    ],
-}
diff --git a/sensors/aidl/default/apex/com.android.hardware.sensors.avbpubkey b/sensors/aidl/default/apex/com.android.hardware.sensors.avbpubkey
deleted file mode 100644
index 98dfb71..0000000
--- a/sensors/aidl/default/apex/com.android.hardware.sensors.avbpubkey
+++ /dev/null
Binary files differ
diff --git a/sensors/aidl/default/apex/com.android.hardware.sensors.pem b/sensors/aidl/default/apex/com.android.hardware.sensors.pem
deleted file mode 100644
index a2f1833..0000000
--- a/sensors/aidl/default/apex/com.android.hardware.sensors.pem
+++ /dev/null
@@ -1,51 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIJKAIBAAKCAgEArUwl9rjXtNrSqJ2rfEryTnVEte7uhZlsn42rXRHFZtuV8N03
-AKAFDDkhJIT+FqmVJLW1Whrno+goaKzA23BodZcSo/xOJuTopgQ/TVqIO2QZ2WUS
-1NiYT3+kydZgtBHhfS+ek9h6aTLgJUn/XBX2xgEA6kp/NkcLpGkqj9Xs7XUpG+n/
-KnyYg+/YFqooEKHTTi4dT9YgRblgzv5zhCKxjB9gqy8dmhwDTpbPGavNiMIZvnSs
-aQzXh7+UMwte+V4QdaEqonoVWm85vEh6rsPpvvmxvlkVnUstRWRwsvbA183gvwZg
-f7OmAgpVu0kEkSHpoJJWpDUhzxmTdxmwvmL92eCJqQUjvxLqak4uBt+epUgbgxcA
-nS7rNg6PsNlHhYl5wRArPP17iW/QK3qnoz8rKgJCtdxPPD13byA13eY9q+Fdwb2H
-uHxGu1iYlRxUAzptvb6pIED/v9MMw/g3yMJkR89WG+pBLbUXHko6H0qOVchYrd8C
-OtcGo7GBBPbJmj9ZGZDX7p5YBSdTZs8f9wWqJmXkfVR60zZE0dOnOchzL44c8oUh
-uwEZMee7Ae/2LfWnfIe5KBNTvvH1CzU8KbQUJJVbATbb3j/eYExgsbnk0WgFi6i4
-osuJZZmfC44tAg18gXozcji+xYuW3MIMV2+drdc3xXn7LXKn5JZCLVJ6n+cCAwEA
-AQKCAgATT6P/XVO0NJo67e75F8Tul0TD3U85FgKzuO66nUtZDekkgRIrAKnvVcJq
-tmM2FUmoYJNH6i2b5zfxiianjVwmlmIeYfQ3g1Slg12megsqSxpSTmAN1eELItcz
-Iq9+AWwWLiNGqF3jsSanIRrSoSPxppT6hrisTLhwZsO2aYlQYLjnAmlLy7yXHzf+
-NpHmYJISaTMc/Wh1PJYcGuC2fcM5MRntmX9799kqfcWwP6PUtIR347p+rk6qMuAJ
-3B+GPEQrR31fw6jzfed6Ir2BEhXPETYMVxMAhysRS4L/fl247pk30Dcao+NA4PPy
-vc1Devr0yLnc7IrK8DetkvBOFuvgl53gHPZ4f7ge2PQMPghwjBaFuXklcfY96PVw
-Yo/CyAN+VEANThFFcKUzovtHI6m3sNTlxE6F+AYvx5dE/WZKmE5/cYCSJ8bhLPJl
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-OowIx6Yu8n7jRyTGUfr2Oz97a/zDVMVRi3BuyePOyCD9PfUmoj9JyCFbQSS1Lq3N
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-txhS/zdj6wspTd6lJ0SSahWG/BsV7990zaRDGYv0N1+SwF8/C0Ml99WbyRof6oP9
-jx0esKA+giWc5lSk+Ag2gpsTIH36aF53lQnDBZL3hqSgqP0ollKa9Uyjfmp65D1m
-TwoENrKnVNO5ZKteTM3SGQ+zsHxBPpinK7T2BPe77wKCAQBdS+Nu2ys/mDErnD1H
-hXzb6J9SVEg3ET8PWZzeO4pciMqcoxYS5qxaFn68Yf+60zGWxUmbL71l7CX80bSp
-6UBwxPxX+ok+kx/WXRbmC+MGRIN+qOwPGKu8XTtSAMD/voJpugAXBMADt4lhq+MN
-HZppV865Ea33tco3hyxn2VKic/rztYtJslrcstrRqD9qsufqbtD9D7gHljZIMCsR
-Yh5xjjEgG5f1XLr/MXhIUhfE0n4D4LWefZGE8W1Sg889f2tOxSPf8+H5dDSb+2Oh
-pTK1hIvA6H+ESfYaMAjbzRsxGz89y9lYr40mUSFRJj3b7TJnvy4ka00xW0f+8XRi
-iOcxAoIBAB0o8Te4i0t3akL5XQNw5if7qDWIHZNcaxYfjxTLH7sbIms825OT2KqA
-X0Y5vLLTfB1Dcym2cfsgTYiiXIvN84TK3/pjjgamtmLH4EVJbkl1aKOvghO6lPEB
-6R/ZCUfpiv7HKKcZqeHgDYMxyaMwYG/Ql+Dz0A7P66PK/VlqS9bclha43cf7qLvj
-gOPXGIf4mSeFHQxzBrJ5i3VjNzJB3GitsIS2ipEd5B/eRylgEL8gP07KhH38silx
-FV8tGbc95BS/4v8zMBz/peKP2zXF8Hs4oK6uK8MKy4i0emoa2pf3rcL+2A65bF0F
-L1WHmAszGf/7Xkd3yQoSTWpJfuTCJ/0CggEBAJjkBaEoiRYp0RBq1Ty0wa+xbPHp
-gAcpco+VC3T8uqniKBDrf5QsMDm7+P9IZRYrfgyy0KFeG4mHrTt61JgOLnhSTOyz
-EEChc8SOn6+vqMB36FmSSqVb6CdLEZhv5dtTzzHgyd3xS3cwga9Mf2SCoG/l34HJ
-XzfoQyLKvqF0kWOq/76k+kBM5QwWIGc2fVXcpJpWaAuPWKDQJnkvTcPp8XPyEADv
-z2YbSDDqqcwczX2DWepf2t2RU1fdyjS5wS6pNDvsuyd6gwUTQT1P5ODHbIdAwcdi
-5Gxui8voJmzvrfabIsN6H73ZS4Lw20ZB+ejYyiwxZcb0os45C1coicMJ9wQ=
------END RSA PRIVATE KEY-----
diff --git a/sensors/aidl/default/apex/com.android.hardware.sensors.pk8 b/sensors/aidl/default/apex/com.android.hardware.sensors.pk8
deleted file mode 100644
index 7a1cca0..0000000
--- a/sensors/aidl/default/apex/com.android.hardware.sensors.pk8
+++ /dev/null
Binary files differ
diff --git a/sensors/aidl/default/apex/com.android.hardware.sensors.x509.pem b/sensors/aidl/default/apex/com.android.hardware.sensors.x509.pem
deleted file mode 100644
index 20a06f9..0000000
--- a/sensors/aidl/default/apex/com.android.hardware.sensors.x509.pem
+++ /dev/null
@@ -1,34 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIF3TCCA8UCFAbIl4RS714WSLo4k64MHsINz4VEMA0GCSqGSIb3DQEBCwUAMIGp
-MQswCQYDVQQGEwJVUzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91
-bnRhaW4gVmlldzEQMA4GA1UECgwHQW5kcm9pZDEQMA4GA1UECwwHQW5kcm9pZDEi
-MCAGCSqGSIb3DQEJARYTYW5kcm9pZEBhbmRyb2lkLmNvbTElMCMGA1UEAwwcY29t
-LmFuZHJvaWQuaGFyZHdhcmUuc2Vuc29yczAgFw0yMTA5MDMxNjEyNDNaGA80NzU5
-MDczMTE2MTI0M1owgakxCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlh
-MRYwFAYDVQQHDA1Nb3VudGFpbiBWaWV3MRAwDgYDVQQKDAdBbmRyb2lkMRAwDgYD
-VQQLDAdBbmRyb2lkMSIwIAYJKoZIhvcNAQkBFhNhbmRyb2lkQGFuZHJvaWQuY29t
-MSUwIwYDVQQDDBxjb20uYW5kcm9pZC5oYXJkd2FyZS5zZW5zb3JzMIICIjANBgkq
-hkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAnluNTPcq4pDEeb5gEYszRYQCawq8czUY
-J+x2b0i7qO2wLidX45CX6BLZ9N7c5veoV3FvC1wMTRR6lGAyg7UbD80vVmPdmr6R
-vw2AdIqrghXinvAEv6gxQQPVQa8UHkCL4lULLXo2gdmoCBM8VJHihjO/2F8ZLsP/
-nKhYx9Nr6w9LEyalmHTkXOgNyrNprpbJwugdk3hDXbAK+j5nF9fsz/iWFoXnPuNe
-oqdWj21YhXKDAbewBXaM6l3qmTdGsVVJL4HmVURGUY2f2UZwMWTEjpy9UDzyfqqg
-CSdH1RLmGVAINyfNI3Zswo0CjnOCf0jW6mq9/6mfGYu8hBCrky/rOH8reDwYZTGe
-H6JbNj0dhEN5HzQcxGEQQ43L1nmH7XlnuPO0xPSsw5binPVuUvURivR3PSsFgpPl
-0Uche62XgLAXCXhNV2uUQtZLVFGug7JcGgS4O3GoKr6w35Q+W9SEXanXFMW6X+wN
-hkbhB4MDSuKTZrjEnZEyxMOLG8ILN9i7osa+yjWONTn9bZc6q3Y9jyu3u84o8kC8
-KDcvr8YZEL63nQsQXO44GiQmqBptuB+ehcAC6uRCKkY9tQ95EQ7laGQ3C85d3gPj
-NcGjT7SSuUir7n+LI9pZsotedd9+rGhiiyT8CM4sVWiYJFnA2UX/bsnkZyAOq9Po
-jz1aMdHc4wUCAwEAATANBgkqhkiG9w0BAQsFAAOCAgEATEPN2SZk8pJc4DaWmhyR
-MUklzVeuN0J0Mij1mHuVmID7Q5IhBBXxtVmwRIo208rHSvFLAo7Z4FnuZCV3A/c9
-TlXT3S2t+iYG5eOyXSsoSc/uerJ7kIBcOe27qIrO9GwcK5CQlTaXP+CG1gbLp1nl
-IaqKAT+eb/ji5wmFxMI77wo3uKLPTCfpaptFNaYlRqvxiXdJsCZwCPgmCtXJUeeZ
-R/HKOA4PcS2QB+HwhYePY5kUJPwt6MwJEyno72oenfl49FrGHj0BzVmQ7KMfiYjZ
-eRSB2Wbo50xfiICkPlUcvWD8rRNg7N9CM/Q5O0MW3ivAe42aGap/8qfXUa+L5vu4
-9vaxgQvBVcPXE/pyeCYM8beB84Us+FOYPC7gIUhcctBqGYAQmHzp3sXvIg0DVxz7
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-SUWfgi4fyG1/phfzhdU3efMvmN+XT16/ykMrY8P5S+ghwK12IZ3DgTl0ooLFABUj
-zYeQ8LLz3SP9LNgeLnPP/po=
------END CERTIFICATE-----
diff --git a/sensors/aidl/default/apex/apex_manifest.json b/sensors/aidl/default/apex_manifest.json
similarity index 100%
rename from sensors/aidl/default/apex/apex_manifest.json
rename to sensors/aidl/default/apex_manifest.json
diff --git a/sensors/aidl/default/apex/file_contexts b/sensors/aidl/default/file_contexts
similarity index 100%
rename from sensors/aidl/default/apex/file_contexts
rename to sensors/aidl/default/file_contexts
diff --git a/sensors/aidl/default/sensors-default.rc b/sensors/aidl/default/sensors-default.rc
index 96da85d..e0b0ef0 100644
--- a/sensors/aidl/default/sensors-default.rc
+++ b/sensors/aidl/default/sensors-default.rc
@@ -1,4 +1,4 @@
-service vendor.sensors-default /vendor/bin/hw/android.hardware.sensors-service.example
+service vendor.sensors-default /apex/com.android.hardware.sensors/bin/hw/android.hardware.sensors-service.example
     class hal
     user system
     group system
diff --git a/uwb/aidl/default/src/uwb_chip.rs b/uwb/aidl/default/src/uwb_chip.rs
index 2b8e481..efb2454 100644
--- a/uwb/aidl/default/src/uwb_chip.rs
+++ b/uwb/aidl/default/src/uwb_chip.rs
@@ -14,7 +14,6 @@
 
 use std::fs::{File, OpenOptions};
 use std::io::{self, Read, Write};
-use std::os::fd::AsRawFd;
 use std::os::unix::fs::OpenOptionsExt;
 
 enum State {
@@ -61,13 +60,11 @@
 }
 
 pub fn makeraw(file: File) -> io::Result<File> {
-    let fd = file.as_raw_fd();
-
-    // Configure the file descritpro as raw fd.
+    // Configure the file descriptor as raw fd.
     use nix::sys::termios::*;
-    let mut attrs = tcgetattr(fd)?;
+    let mut attrs = tcgetattr(&file)?;
     cfmakeraw(&mut attrs);
-    tcsetattr(fd, SetArg::TCSANOW, &attrs)?;
+    tcsetattr(&file, SetArg::TCSANOW, &attrs)?;
 
     Ok(file)
 }
diff --git a/wifi/aidl/default/aidl_struct_util.cpp b/wifi/aidl/default/aidl_struct_util.cpp
index 7bc2eeb..83e1193 100644
--- a/wifi/aidl/default/aidl_struct_util.cpp
+++ b/wifi/aidl/default/aidl_struct_util.cpp
@@ -887,6 +887,15 @@
     return true;
 }
 
+StaLinkLayerLinkStats::StaLinkState convertLegacyMlLinkStateToAidl(wifi_link_state state) {
+    if (state == wifi_link_state::WIFI_LINK_STATE_NOT_IN_USE) {
+        return StaLinkLayerLinkStats::StaLinkState::NOT_IN_USE;
+    } else if (state == wifi_link_state::WIFI_LINK_STATE_IN_USE) {
+        return StaLinkLayerLinkStats::StaLinkState::IN_USE;
+    }
+    return StaLinkLayerLinkStats::StaLinkState::UNKNOWN;
+}
+
 bool convertLegacyLinkLayerMlStatsToAidl(const legacy_hal::LinkLayerMlStats& legacy_ml_stats,
                                          StaLinkLayerStats* aidl_stats) {
     if (!aidl_stats) {
@@ -898,6 +907,7 @@
     for (const auto& link : legacy_ml_stats.links) {
         StaLinkLayerLinkStats linkStats = {};
         linkStats.linkId = link.stat.link_id;
+        linkStats.state = convertLegacyMlLinkStateToAidl(link.stat.state);
         linkStats.radioId = link.stat.radio;
         linkStats.frequencyMhz = link.stat.frequency;
         linkStats.beaconRx = link.stat.beacon_rx;
diff --git a/wifi/aidl/default/tests/aidl_struct_util_unit_tests.cpp b/wifi/aidl/default/tests/aidl_struct_util_unit_tests.cpp
index 5c334f8..995a13d 100644
--- a/wifi/aidl/default/tests/aidl_struct_util_unit_tests.cpp
+++ b/wifi/aidl/default/tests/aidl_struct_util_unit_tests.cpp
@@ -123,6 +123,9 @@
     // Add two radio stats
     legacy_ml_stats.radios.push_back(legacy_hal::LinkLayerRadioStats{});
     legacy_ml_stats.radios.push_back(legacy_hal::LinkLayerRadioStats{});
+    wifi_link_state states[sizeof(wifi_link_state)] = {wifi_link_state::WIFI_LINK_STATE_UNKNOWN,
+                                                       wifi_link_state::WIFI_LINK_STATE_NOT_IN_USE,
+                                                       wifi_link_state::WIFI_LINK_STATE_IN_USE};
     // Add two links.
     legacy_ml_stats.links.push_back(legacy_hal::LinkStats{});
     legacy_ml_stats.links.push_back(legacy_hal::LinkStats{});
@@ -133,6 +136,7 @@
         link.stat.beacon_rx = rand();
         // MLO link id: 0 - 15
         link.stat.link_id = rand() % 16;
+        link.stat.state = states[rand() % sizeof(states)];
         // Maximum number of radios is limited to 3 for testing.
         link.stat.radio = rand() % 4;
         link.stat.frequency = rand();
@@ -241,6 +245,18 @@
     int l = 0;
     for (legacy_hal::LinkStats& link : legacy_ml_stats.links) {
         EXPECT_EQ(link.stat.link_id, (uint8_t)converted.iface.links[l].linkId);
+        StaLinkLayerLinkStats::StaLinkState expectedState;
+        switch (link.stat.state) {
+            case wifi_link_state::WIFI_LINK_STATE_NOT_IN_USE:
+                expectedState = StaLinkLayerLinkStats::StaLinkState::NOT_IN_USE;
+                break;
+            case wifi_link_state::WIFI_LINK_STATE_IN_USE:
+                expectedState = StaLinkLayerLinkStats::StaLinkState::IN_USE;
+                break;
+            default:
+                expectedState = StaLinkLayerLinkStats::StaLinkState::UNKNOWN;
+        }
+        EXPECT_EQ(expectedState, converted.iface.links[l].state);
         EXPECT_EQ(link.stat.radio, converted.iface.links[l].radioId);
         EXPECT_EQ(link.stat.frequency, (uint32_t)converted.iface.links[l].frequencyMhz);
         EXPECT_EQ(link.stat.beacon_rx, (uint32_t)converted.iface.links[l].beaconRx);
diff --git a/wifi/aidl/default/wifi_chip.cpp b/wifi/aidl/default/wifi_chip.cpp
index 6dd9156..8265e5b 100644
--- a/wifi/aidl/default/wifi_chip.cpp
+++ b/wifi/aidl/default/wifi_chip.cpp
@@ -1452,14 +1452,24 @@
     if (legacy_status != legacy_hal::WIFI_SUCCESS) {
         LOG(ERROR) << "Failed to get SupportedRadioCombinations matrix from legacy HAL: "
                    << legacyErrorToString(legacy_status);
+        if (legacy_matrix != nullptr) {
+            free(legacy_matrix);
+        }
         return {aidl_combinations, createWifiStatusFromLegacyError(legacy_status)};
     }
 
     if (!aidl_struct_util::convertLegacyRadioCombinationsMatrixToAidl(legacy_matrix,
                                                                       &aidl_combinations)) {
         LOG(ERROR) << "Failed convertLegacyRadioCombinationsMatrixToAidl() ";
+        if (legacy_matrix != nullptr) {
+            free(legacy_matrix);
+        }
         return {aidl_combinations, createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS)};
     }
+
+    if (legacy_matrix != nullptr) {
+        free(legacy_matrix);
+    }
     return {aidl_combinations, ndk::ScopedAStatus::ok()};
 }