Merge "Fix MLO link reconfig" into main
diff --git a/automotive/vehicle/aidl/Android.bp b/automotive/vehicle/aidl/Android.bp
index ce9e7a1..4b2d2b8 100644
--- a/automotive/vehicle/aidl/Android.bp
+++ b/automotive/vehicle/aidl/Android.bp
@@ -27,7 +27,7 @@
     srcs: [
         "android/hardware/automotive/vehicle/*.aidl",
     ],
-    frozen: true,
+    frozen: false,
     stability: "vintf",
     backend: {
         cpp: {
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/HasSupportedValueInfo.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/HasSupportedValueInfo.aidl
new file mode 100644
index 0000000..e9633cc
--- /dev/null
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/HasSupportedValueInfo.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+@JavaDerive(equals=true, toString=true) @RustDerive(Clone=true) @VintfStability
+parcelable HasSupportedValueInfo {
+  boolean hasMinSupportedValue;
+  boolean hasMaxSupportedValue;
+  boolean hasSupportedValuesList;
+}
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/IVehicle.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/IVehicle.aidl
index b5f62aa..ee58416 100644
--- a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/IVehicle.aidl
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/IVehicle.aidl
@@ -41,6 +41,10 @@
   void subscribe(in android.hardware.automotive.vehicle.IVehicleCallback callback, in android.hardware.automotive.vehicle.SubscribeOptions[] options, int maxSharedMemoryFileCount);
   void unsubscribe(in android.hardware.automotive.vehicle.IVehicleCallback callback, in int[] propIds);
   void returnSharedMemory(in android.hardware.automotive.vehicle.IVehicleCallback callback, long sharedMemoryId);
+  android.hardware.automotive.vehicle.SupportedValuesListResults getSupportedValuesLists(in List<android.hardware.automotive.vehicle.PropIdAreaId> propIdAreaIds);
+  android.hardware.automotive.vehicle.MinMaxSupportedValueResults getMinMaxSupportedValue(in List<android.hardware.automotive.vehicle.PropIdAreaId> propIdAreaIds);
+  void registerSupportedValueChangeCallback(in android.hardware.automotive.vehicle.IVehicleCallback callback, in List<android.hardware.automotive.vehicle.PropIdAreaId> propIdAreaIds);
+  void unregisterSupportedValueChangeCallback(in android.hardware.automotive.vehicle.IVehicleCallback callback, in List<android.hardware.automotive.vehicle.PropIdAreaId> propIdAreaIds);
   const long INVALID_MEMORY_ID = 0;
   const int MAX_SHARED_MEMORY_FILES_PER_CLIENT = 3;
 }
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/IVehicleCallback.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/IVehicleCallback.aidl
index 2c5a333..50a8e76 100644
--- a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/IVehicleCallback.aidl
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/IVehicleCallback.aidl
@@ -38,4 +38,5 @@
   oneway void onSetValues(in android.hardware.automotive.vehicle.SetValueResults responses);
   oneway void onPropertyEvent(in android.hardware.automotive.vehicle.VehiclePropValues propValues, int sharedMemoryFileCount);
   oneway void onPropertySetError(in android.hardware.automotive.vehicle.VehiclePropErrors errors);
+  oneway void onSupportedValueChange(in List<android.hardware.automotive.vehicle.PropIdAreaId> propIdAreaIds);
 }
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/MinMaxSupportedValueResult.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/MinMaxSupportedValueResult.aidl
new file mode 100644
index 0000000..a004b79
--- /dev/null
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/MinMaxSupportedValueResult.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+@JavaDerive(equals=true, toString=true) @RustDerive(Clone=true) @VintfStability
+parcelable MinMaxSupportedValueResult {
+  android.hardware.automotive.vehicle.StatusCode status = android.hardware.automotive.vehicle.StatusCode.OK;
+  @nullable android.hardware.automotive.vehicle.RawPropValues minSupportedValue;
+  @nullable android.hardware.automotive.vehicle.RawPropValues maxSupportedValue;
+}
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/MinMaxSupportedValueResults.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/MinMaxSupportedValueResults.aidl
new file mode 100644
index 0000000..914d9c6
--- /dev/null
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/MinMaxSupportedValueResults.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable MinMaxSupportedValueResults {
+  android.hardware.automotive.vehicle.MinMaxSupportedValueResult[] payloads;
+  @nullable ParcelFileDescriptor sharedMemoryFd;
+}
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/PropIdAreaId.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/PropIdAreaId.aidl
new file mode 100644
index 0000000..83e9c15
--- /dev/null
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/PropIdAreaId.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+@JavaDerive(equals=true, toString=true) @RustDerive(Clone=true) @VintfStability
+parcelable PropIdAreaId {
+  int propId;
+  int areaId;
+}
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SupportedValuesListResult.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SupportedValuesListResult.aidl
new file mode 100644
index 0000000..f348dcb
--- /dev/null
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SupportedValuesListResult.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+@JavaDerive(equals=true, toString=true) @RustDerive(Clone=true) @VintfStability
+parcelable SupportedValuesListResult {
+  android.hardware.automotive.vehicle.StatusCode status = android.hardware.automotive.vehicle.StatusCode.OK;
+  @nullable List<android.hardware.automotive.vehicle.RawPropValues> supportedValuesList;
+}
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SupportedValuesListResults.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SupportedValuesListResults.aidl
new file mode 100644
index 0000000..08af47c
--- /dev/null
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/SupportedValuesListResults.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable SupportedValuesListResults {
+  android.hardware.automotive.vehicle.SupportedValuesListResult[] payloads;
+  @nullable ParcelFileDescriptor sharedMemoryFd;
+}
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/ValueRange.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/ValueRange.aidl
new file mode 100644
index 0000000..077652b
--- /dev/null
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/ValueRange.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+@JavaDerive(equals=true, toString=true) @RustDerive(Clone=true) @VintfStability
+parcelable ValueRange {
+  @nullable android.hardware.automotive.vehicle.RawPropValues minValue;
+  @nullable android.hardware.automotive.vehicle.RawPropValues maxValue;
+  @nullable List<android.hardware.automotive.vehicle.RawPropValues> supportedValues;
+}
diff --git a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/VehicleAreaConfig.aidl b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/VehicleAreaConfig.aidl
index eb3028e..465d9d4 100644
--- a/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/VehicleAreaConfig.aidl
+++ b/automotive/vehicle/aidl/aidl_api/android.hardware.automotive.vehicle/current/android/hardware/automotive/vehicle/VehicleAreaConfig.aidl
@@ -44,4 +44,5 @@
   @nullable long[] supportedEnumValues;
   android.hardware.automotive.vehicle.VehiclePropertyAccess access = android.hardware.automotive.vehicle.VehiclePropertyAccess.NONE;
   boolean supportVariableUpdateRate;
+  @nullable android.hardware.automotive.vehicle.HasSupportedValueInfo hasSupportedValueInfo;
 }
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/HasSupportedValueInfo.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/HasSupportedValueInfo.aidl
new file mode 100644
index 0000000..991631b
--- /dev/null
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/HasSupportedValueInfo.aidl
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+
+/**
+ * Whether the [propId, areaId] has min/max supported value or supported values
+ * list specified.
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+@RustDerive(Clone=true)
+parcelable HasSupportedValueInfo {
+    /**
+     * Whether [propId, areaId] has min supported value specified.
+     *
+     * If this is {@code true}, the hardware specifies a min supported value.
+     * If {@code MinMaxSupportedValueResult}'s {@code status} is
+     * {@code StatusCode.OK}, its {@code minSupportedValue} must not be
+     * {@code null}.
+     *
+     * If this is {@code false}, {@code minSupportedValue} must be {@code null}.
+     *
+     * Unless otherwise specified, this field is set to {@code false} for any
+     * properties whose type is not int32, int64 or float.
+     *
+     * For certain properties, e.g. {@code EV_BRAKE_REGENERATION_LEVEL}, this
+     * must always be {@code true}. Check {@code VehicleProperty}
+     * documentation.
+     */
+    boolean hasMinSupportedValue;
+
+    /**
+     * Whether [propId, areaId] has max supported value specified.
+     *
+     * If this is {@code true}, the hardware specifies a max supported value.
+     * If {@code MinMaxSupportedValueResult}'s {@code status} is
+     * {@code StatusCode.OK}, its {@code maxSupportedValue} must not be
+     * {@code null}.
+     *
+     * If this is {@code false}, {@code maxSupportedValue} must be {@code null}.
+     *
+     * Unless otherwise specified, this field is set to {@code false} for any
+     * properties whose type is not int32, int64 or float.
+     *
+     * For certain properties, e.g. {@code EV_BRAKE_REGENERATION_LEVEL}, this
+     * must always be {@code true}. Check {@code VehicleProperty}
+     * documentation.
+     */
+    boolean hasMaxSupportedValue;
+
+    /**
+     * Whether [propId, areaId] has supported values list specified.
+     *
+     * If this is {@code true}, it means the hardware specifies supported
+     * values for this property.
+     * If {@code SupportedValueListResult}'s {@code status} is
+     * {@code StatusCode.OK}, its {@code supportedValuesList} must not be
+     * {@code null}.
+     *
+     * If this is {@code false}, {@code supportedValuesList} must always be
+     * {@code null}.
+     *
+     * The supported value is the superset for both the input value for writable
+     * property and the output value for readable property.
+     *
+     * For certain properties, e.g. {@code GEAR_SELECTION}, this must always be
+     * {@code true}. Check {@code VehicleProperty} documentation.
+     */
+    boolean hasSupportedValuesList;
+}
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicle.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicle.aidl
index c896d14..220b1da 100644
--- a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicle.aidl
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicle.aidl
@@ -18,8 +18,11 @@
 
 import android.hardware.automotive.vehicle.GetValueRequests;
 import android.hardware.automotive.vehicle.IVehicleCallback;
+import android.hardware.automotive.vehicle.MinMaxSupportedValueResults;
+import android.hardware.automotive.vehicle.PropIdAreaId;
 import android.hardware.automotive.vehicle.SetValueRequests;
 import android.hardware.automotive.vehicle.SubscribeOptions;
+import android.hardware.automotive.vehicle.SupportedValuesListResults;
 import android.hardware.automotive.vehicle.VehiclePropConfigs;
 
 // Vehicle HAL interface.
@@ -260,4 +263,106 @@
      *    the used shared memory file to return.
      */
     void returnSharedMemory(in IVehicleCallback callback, long sharedMemoryId);
+
+    /**
+     * Gets the supported values lists for [propId, areaId]s.
+     *
+     * For a specific [propId, areaId], if the hardware currently specifies
+     * a list of supported values for it, then it is returned through the
+     * {@code supportedValuesList} field inside
+     * {@code SupportedValuesListResult}. If the hardware does not specify
+     * a list of supported values for it (indicated by
+     * {@code HasSupportedValueInfo.hasSupportedValuesList} being
+     * {@code false}), then {@code supportedValuesList} field will be
+     * {@code null}.
+     *
+     * The supported value list applies for both read/write operations. if
+     * it differs for read/write, this is the super-set.
+     *
+     * Must return a list of results, one for each requested [propId, areaId].
+     *
+     * The returned supported values list represents the currently supported
+     * values and may change dynamically. Caller should use
+     * {@code registerSupportedValueChangeCallback} to register for supported
+     * value range change.
+     *
+     * If unable to determine the supported values for some [propId, areaId] due
+     * to error cases, for example, unable to determine EV_CHARGE_PERCENT_LIMIT
+     * supported values due to battery in an error state,
+     * {@code SupportedValuesListResult.status} for that should be set to
+     * a non-okay {@code StatusCode}.
+     *
+     * If one of the [propId, areaId] is not supported,
+     * {@code SupportedValuesListResult.status} for that should be set to
+     * {@code StatusCode.INVALID_ARG}.
+     *
+     * This function should only return non-okay {@code StatusCode} if the whole
+     * operation failed and unable to get any results.
+     */
+    SupportedValuesListResults getSupportedValuesLists(in List<PropIdAreaId> propIdAreaIds);
+
+    /**
+     * Gets the min/max supported values for [propId, areaId]s.
+     *
+     * For a specific [propId, areaId], if the hardware currently specifies
+     * min/max supported value for it, then it is returned through the
+     * {@code minSupportedValue} or {@code maxSupportedValue} field inside
+     * {@code MinMaxSupportedValueResult}. If the hardware does not specify
+     * min/max supported value for it (indicated by
+     * {@code HasSupportedValueInfo.hasMinSupportedValue} or
+     * {@code HasSupportedValueInfo.hasMaxSupportedValue} being
+     * {@code false}), then {@code minSupportedValue} or
+     * {@code maxSupportedValue} is {@code null}.
+     *
+     * The min/max supported values apply for both read/write operations. if
+     * they differs for read/write, they are from the super-set.
+     *
+     * Must return a list of results, one for each requested [propId, areaId].
+     *
+     * The returned min/max supported values represent the currently supported
+     * values and may change dynamically. Caller should use
+     * {@code registerSupportedValueChangeCallback} to register for supported
+     * value range change.
+     *
+     * If unable to determine the supported values for some [propId, areaId] due
+     * to error cases, for example, unable to determine HVAC_FAN_SPEED
+     * max supported value due to HVAC in an error state,
+     * {@code MinMaxSupportedValueResult.status} for that should be set to
+     * a non-okay {@code StatusCode}.
+     *
+     * If one of the [propId, areaId] is not supported,
+     * {@code MinMaxSupportedValueResult.status} for that should be set to
+     * {@code StatusCode.INVALID_ARG}.
+     *
+     * This function should only return non-okay {@code StatusCode} if the whole
+     * operation failed and unable to get any results.
+     */
+    MinMaxSupportedValueResults getMinMaxSupportedValue(in List<PropIdAreaId> propIdAreaIds);
+
+    /**
+     * Registers the supported value change callback.
+     *
+     * For the specified [propId, areaId]s,
+     * {@code callback.onSupportedValueChange} must be invoked if change
+     * happens.
+     *
+     * This always registers a new callback for the specified [propId, areaId]s
+     * if the same callback was not previously registered for them.
+     *
+     * The list of [propId, areaId]s to register must not be empty.
+     *
+     * @param callback The callback for supported value change.
+     * @param propIdAreaIds A list of [propId, areaId]s to register.
+     */
+    void registerSupportedValueChangeCallback(
+            in IVehicleCallback callback, in List<PropIdAreaId> propIdAreaIds);
+
+    /**
+     * Unregisters the supported value change callback.
+     *
+     * @param callback The callback to unregister.
+     * @param propIdAreaIds A list of [propId, areaId]s to unregister.
+     */
+    void unregisterSupportedValueChangeCallback(
+            in IVehicleCallback callback, in List<PropIdAreaId> propIdAreaIds);
 }
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicleCallback.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicleCallback.aidl
index 2b50321..7230d09 100644
--- a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicleCallback.aidl
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicleCallback.aidl
@@ -17,6 +17,7 @@
 package android.hardware.automotive.vehicle;
 
 import android.hardware.automotive.vehicle.GetValueResults;
+import android.hardware.automotive.vehicle.PropIdAreaId;
 import android.hardware.automotive.vehicle.SetValueResults;
 import android.hardware.automotive.vehicle.StatusCode;
 import android.hardware.automotive.vehicle.VehiclePropErrors;
@@ -96,4 +97,16 @@
      *     does not batch the errors, this may only contain one error.
      */
     oneway void onPropertySetError(in VehiclePropErrors errors);
+
+    /**
+     * Called when the min/max supported value or supported value list for
+     * the registered [propId, areaId]s changes.
+     *
+     * The caller is supposed to call {@code getMinMaxSupportedValue} or
+     * {@code getSupportedValuesLists} to get the new supported value range.
+     *
+     * @param propIdAreaIds The list of [propId, areaId]s whose supported
+     *    value range changes.
+     */
+    oneway void onSupportedValueChange(in List<PropIdAreaId> propIdAreaIds);
 }
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/MinMaxSupportedValueResult.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/MinMaxSupportedValueResult.aidl
new file mode 100644
index 0000000..f85ad3a
--- /dev/null
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/MinMaxSupportedValueResult.aidl
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+
+import android.hardware.automotive.vehicle.RawPropValues;
+import android.hardware.automotive.vehicle.StatusCode;
+
+/**
+ * One result returned from {@code getMinMaxSupportedValue} for one request.
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+@RustDerive(Clone=true)
+parcelable MinMaxSupportedValueResult {
+    /**
+     * The status for result. If this is not OK, the operation failed for this
+     * [propId, areaId].
+     */
+    StatusCode status = StatusCode.OK;
+    /**
+     * The min supported value.
+     *
+     * If the [propId, areaId] does not specify a min supported value, this
+     * is {@code null}.
+     */
+    @nullable RawPropValues minSupportedValue;
+    /**
+     * The max supported value.
+     *
+     * If the [propId, areaId] does not specify a max supported value, this
+     * is {@code null}.
+     */
+    @nullable RawPropValues maxSupportedValue;
+}
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/MinMaxSupportedValueResults.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/MinMaxSupportedValueResults.aidl
new file mode 100644
index 0000000..3579979
--- /dev/null
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/MinMaxSupportedValueResults.aidl
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+
+import android.hardware.automotive.vehicle.MinMaxSupportedValueResult;
+import android.os.ParcelFileDescriptor;
+
+/**
+ * The result structure for {@code getMinMaxSupportedValue}.
+ *
+ * Contains a list of results, one for each [propId, areaId] request. The
+ * list must contain the same number of result as the {@code propIdAreaIds}.
+ * The result must be in the same order, e.g. the first result is for the first
+ * [propId, areaId].
+ *
+ * Java Client should use
+ * {@link LargeParcelable.reconstructStableAIDLParcelable} to convert this back
+ * to a regular parcelable and then use the converted parcelable's
+ * {@code payloads} field.
+ *
+ * Native client should use
+ * {@link LargeParcelable::stableLargeParcelableToParcelable}.
+ *
+ * VHAL implementation must store the results into {@link payloads} field and
+ * use {@link LargeParcelable::parcelableToStableLargeParcelable} before
+ * sending the converted large parcelable through binder.
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+parcelable MinMaxSupportedValueResults {
+    /**
+     * The list of responses if they fit the binder memory limitation.
+     */
+    MinMaxSupportedValueResult[] payloads;
+    /**
+     * Shared memory file to store responses if they exceed binder memory
+     * limitation. Created by VHAL, readable only for the client.
+     * The client must close it after reading.
+     */
+    @nullable ParcelFileDescriptor sharedMemoryFd;
+}
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/PropIdAreaId.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/PropIdAreaId.aidl
new file mode 100644
index 0000000..ea47350
--- /dev/null
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/PropIdAreaId.aidl
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+
+import android.hardware.automotive.vehicle.RawPropValues;
+
+/**
+ * A structure containing one propertyId and one areaId.
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+@RustDerive(Clone=true)
+parcelable PropIdAreaId {
+    /** The property Id. */
+    int propId;
+    /** The area Id. */
+    int areaId;
+}
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SupportedValuesListResult.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SupportedValuesListResult.aidl
new file mode 100644
index 0000000..4524f4f
--- /dev/null
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SupportedValuesListResult.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+
+import android.hardware.automotive.vehicle.RawPropValues;
+import android.hardware.automotive.vehicle.StatusCode;
+
+/**
+ * One result returned from {@code getSupportedValuesLists} for one request.
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+@RustDerive(Clone=true)
+parcelable SupportedValuesListResult {
+    /**
+     * The status for result. If this is not OK, the operation failed for this
+     * [propId, areaId].
+     */
+    StatusCode status = StatusCode.OK;
+    /**
+     * The supported values list.
+     *
+     * If the [propId, areaId] does not specify a supported values list, this
+     * is {@code null}.
+     */
+    @nullable List<RawPropValues> supportedValuesList;
+}
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SupportedValuesListResults.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SupportedValuesListResults.aidl
new file mode 100644
index 0000000..da84871
--- /dev/null
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/SupportedValuesListResults.aidl
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+
+import android.hardware.automotive.vehicle.SupportedValuesListResult;
+import android.os.ParcelFileDescriptor;
+
+/**
+ * The result structure for {@code getSupportedValuesLists}.
+ *
+ * Contains a list of results, one for each [propId, areaId] request. The
+ * list must contain the same number of result as the {@code propIdAreaIds}.
+ * The result must be in the same order, e.g. the first result is for the first
+ * [propId, areaId].
+ *
+ * Java Client should use
+ * {@link LargeParcelable.reconstructStableAIDLParcelable} to convert this back
+ * to a regular parcelable and then use the converted parcelable's
+ * {@code payloads} field.
+ *
+ * Native client should use
+ * {@link LargeParcelable::stableLargeParcelableToParcelable}.
+ *
+ * VHAL implementation must store the results into {@link payloads} field and
+ * use {@link LargeParcelable::parcelableToStableLargeParcelable} before
+ * sending the converted large parcelable through binder.
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+parcelable SupportedValuesListResults {
+    /**
+     * The list of responses if they fit the binder memory limitation.
+     */
+    SupportedValuesListResult[] payloads;
+    /**
+     * Shared memory file to store responses if they exceed binder memory
+     * limitation. Created by VHAL, readable only for the client.
+     * The client must close it after reading.
+     */
+    @nullable ParcelFileDescriptor sharedMemoryFd;
+}
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/ValueRange.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/ValueRange.aidl
new file mode 100644
index 0000000..816a6a8
--- /dev/null
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/ValueRange.aidl
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2024 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.automotive.vehicle;
+
+import android.hardware.automotive.vehicle.RawPropValues;
+
+/**
+ * Represents the value range for a vehicle property.
+ *
+ * This applies for the values read from VHAL and the values sent to VHAL.
+ *
+ * If the value range differs, this is the super set.
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+@RustDerive(Clone=true)
+parcelable ValueRange {
+    /**
+     * The currently specified minimum value for the property.
+     *
+     * {@code null} if not specified.
+     */
+    @nullable RawPropValues minValue;
+
+    /**
+     * The currently specified maximum value for the property.
+     *
+     * {@code null} if not specified.
+     */
+    @nullable RawPropValues maxValue;
+
+    /**
+     * The currently specified supported values for the property.
+     *
+     * If the value type is int32, int64 or float, the returned list must be
+     * sorted in ascending order.
+     *
+     * {@code null} if not specified.
+     */
+    @nullable List<RawPropValues> supportedValues;
+}
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/VehicleAreaConfig.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/VehicleAreaConfig.aidl
index 9387965..70a5566 100644
--- a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/VehicleAreaConfig.aidl
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/VehicleAreaConfig.aidl
@@ -16,6 +16,7 @@
 
 package android.hardware.automotive.vehicle;
 
+import android.hardware.automotive.vehicle.HasSupportedValueInfo;
 import android.hardware.automotive.vehicle.VehiclePropertyAccess;
 
 @VintfStability
@@ -83,6 +84,8 @@
     /**
      * Whether variable update rate is supported.
      *
+     * This is always {@code false} for VHAL implementation < V3.
+     *
      * This applies for continuous property only.
      *
      * It is HIGHLY RECOMMENDED to support variable update rate for all non-heartbeat continuous
@@ -109,4 +112,12 @@
      * so this should be false if the property is large (e.g. a byte array of 1k in size).
      */
     boolean supportVariableUpdateRate;
+
+    /**
+     * For VHAL implementation >= V4, this must not be {@code null}. This specifies whether
+     * this property may have min/max supported value or supported values list.
+     *
+     * For VHAL implementation < V4, this is always {@code null} and is not accessed.
+     */
+    @nullable HasSupportedValueInfo hasSupportedValueInfo;
 }
diff --git a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/ExplicitKeyMaterial.aidl b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/ExplicitKeyMaterial.aidl
index 933fb67..9970678 100644
--- a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/ExplicitKeyMaterial.aidl
+++ b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/ExplicitKeyMaterial.aidl
@@ -34,4 +34,5 @@
 package android.hardware.security.see.hwcrypto.types;
 union ExplicitKeyMaterial {
   android.hardware.security.see.hwcrypto.types.AesKey aes;
+  android.hardware.security.see.hwcrypto.types.HmacKey hmac;
 }
diff --git a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/HmacKey.aidl b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/HmacKey.aidl
new file mode 100644
index 0000000..f8de94a
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/HmacKey.aidl
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2024 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.security.see.hwcrypto.types;
+union HmacKey {
+  byte[32] sha256 = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+  byte[64] sha512;
+}
diff --git a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/ExplicitKeyMaterial.aidl b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/ExplicitKeyMaterial.aidl
index 4298ba9..3aa5611 100644
--- a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/ExplicitKeyMaterial.aidl
+++ b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/ExplicitKeyMaterial.aidl
@@ -16,10 +16,12 @@
 package android.hardware.security.see.hwcrypto.types;
 
 import android.hardware.security.see.hwcrypto.types.AesKey;
+import android.hardware.security.see.hwcrypto.types.HmacKey;
 
 /*
  * Type encapsulating a clear key.
  */
 union ExplicitKeyMaterial {
     AesKey aes;
+    HmacKey hmac;
 }
diff --git a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/HmacKey.aidl b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/HmacKey.aidl
new file mode 100644
index 0000000..a0b6ba7
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/HmacKey.aidl
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2024 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.security.see.hwcrypto.types;
+
+/*
+ * Type that represents an Hmac key.
+ */
+union HmacKey {
+    /*
+     * Raw Hmac key for use with sha256.
+     */
+    byte[32] sha256 = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0, 0};
+
+    /*
+     * Raw Hmac key for use with sha512.
+     */
+    byte[64] sha512;
+}