diff --git a/biometrics/common/aidl/Android.bp b/biometrics/common/aidl/Android.bp
index 8502a82..246bcf2 100644
--- a/biometrics/common/aidl/Android.bp
+++ b/biometrics/common/aidl/Android.bp
@@ -13,7 +13,7 @@
     srcs: [
         "android/hardware/biometrics/common/*.aidl",
     ],
-    frozen: false,
+    frozen: true,
     stability: "vintf",
     backend: {
         java: {
@@ -36,6 +36,10 @@
             version: "3",
             imports: [],
         },
+        {
+            version: "4",
+            imports: [],
+        },
 
     ],
 }
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/.hash b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/.hash
new file mode 100644
index 0000000..fce53f1
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/.hash
@@ -0,0 +1 @@
+8a6cd86630181a4df6f20056259ec200ffe39209
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/AuthenticateReason.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/AuthenticateReason.aidl
new file mode 100644
index 0000000..f639ead
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/AuthenticateReason.aidl
@@ -0,0 +1,63 @@
+/*
+ * 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.biometrics.common;
+/* @hide */
+@VintfStability
+union AuthenticateReason {
+  android.hardware.biometrics.common.AuthenticateReason.Vendor vendorAuthenticateReason;
+  android.hardware.biometrics.common.AuthenticateReason.Face faceAuthenticateReason;
+  android.hardware.biometrics.common.AuthenticateReason.Fingerprint fingerprintAuthenticateReason;
+  @VintfStability
+  parcelable Vendor {
+    ParcelableHolder extension;
+  }
+  @Backing(type="int") @VintfStability
+  enum Fingerprint {
+    UNKNOWN,
+  }
+  @Backing(type="int") @VintfStability
+  enum Face {
+    UNKNOWN,
+    STARTED_WAKING_UP,
+    PRIMARY_BOUNCER_SHOWN,
+    ASSISTANT_VISIBLE,
+    ALTERNATE_BIOMETRIC_BOUNCER_SHOWN,
+    NOTIFICATION_PANEL_CLICKED,
+    OCCLUDING_APP_REQUESTED,
+    PICK_UP_GESTURE_TRIGGERED,
+    QS_EXPANDED,
+    SWIPE_UP_ON_BOUNCER,
+    UDFPS_POINTER_DOWN,
+  }
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/CommonProps.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/CommonProps.aidl
new file mode 100644
index 0000000..1eb8541
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/CommonProps.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.biometrics.common;
+/* @hide */
+@VintfStability
+parcelable CommonProps {
+  int sensorId;
+  android.hardware.biometrics.common.SensorStrength sensorStrength = android.hardware.biometrics.common.SensorStrength.CONVENIENCE;
+  int maxEnrollmentsPerUser;
+  android.hardware.biometrics.common.ComponentInfo[] componentInfo;
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/ComponentInfo.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/ComponentInfo.aidl
new file mode 100644
index 0000000..471ed2b
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/ComponentInfo.aidl
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.biometrics.common;
+/* @hide */
+@VintfStability
+parcelable ComponentInfo {
+  String componentId;
+  String hardwareVersion;
+  String firmwareVersion;
+  String serialNumber;
+  String softwareVersion;
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/DisplayState.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/DisplayState.aidl
new file mode 100644
index 0000000..176e8d6
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/DisplayState.aidl
@@ -0,0 +1,43 @@
+/*
+ * 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.biometrics.common;
+/* @hide */
+@Backing(type="int") @VintfStability
+enum DisplayState {
+  UNKNOWN,
+  LOCKSCREEN,
+  NO_UI,
+  SCREENSAVER,
+  AOD,
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/FoldState.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/FoldState.aidl
new file mode 100644
index 0000000..06baf00
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/FoldState.aidl
@@ -0,0 +1,42 @@
+/*
+ * 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.biometrics.common;
+/* @hide */
+@Backing(type="int") @VintfStability
+enum FoldState {
+  UNKNOWN,
+  HALF_OPENED,
+  FULLY_OPENED,
+  FULLY_CLOSED,
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/ICancellationSignal.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/ICancellationSignal.aidl
new file mode 100644
index 0000000..670114f
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/ICancellationSignal.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.biometrics.common;
+/* @hide */
+@VintfStability
+interface ICancellationSignal {
+  oneway void cancel();
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationContext.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationContext.aidl
new file mode 100644
index 0000000..8d913c8
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationContext.aidl
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2021 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.biometrics.common;
+/* @hide */
+@VintfStability
+parcelable OperationContext {
+  int id = 0;
+  android.hardware.biometrics.common.OperationReason reason = android.hardware.biometrics.common.OperationReason.UNKNOWN;
+  /**
+   * @deprecated use displayState instead.
+   */
+  boolean isAod = false;
+  boolean isCrypto = false;
+  android.hardware.biometrics.common.WakeReason wakeReason = android.hardware.biometrics.common.WakeReason.UNKNOWN;
+  android.hardware.biometrics.common.DisplayState displayState = android.hardware.biometrics.common.DisplayState.UNKNOWN;
+  @nullable android.hardware.biometrics.common.AuthenticateReason authenticateReason;
+  android.hardware.biometrics.common.FoldState foldState = android.hardware.biometrics.common.FoldState.UNKNOWN;
+  @nullable android.hardware.biometrics.common.OperationState operationState;
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationReason.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationReason.aidl
new file mode 100644
index 0000000..188054a
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationReason.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2021 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.biometrics.common;
+/* @hide */
+@Backing(type="byte") @VintfStability
+enum OperationReason {
+  UNKNOWN,
+  BIOMETRIC_PROMPT,
+  KEYGUARD,
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationState.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationState.aidl
new file mode 100644
index 0000000..fca9525
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/OperationState.aidl
@@ -0,0 +1,49 @@
+/*
+ * 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.biometrics.common;
+/* @hide */
+@VintfStability
+union OperationState {
+  android.hardware.biometrics.common.OperationState.FingerprintOperationState fingerprintOperationState;
+  android.hardware.biometrics.common.OperationState.FaceOperationState faceOperationState;
+  @VintfStability
+  parcelable FingerprintOperationState {
+    ParcelableHolder extension;
+    boolean isHardwareIgnoringTouches = false;
+  }
+  @VintfStability
+  parcelable FaceOperationState {
+    ParcelableHolder extension;
+  }
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/SensorStrength.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/SensorStrength.aidl
new file mode 100644
index 0000000..c931781
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/SensorStrength.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.biometrics.common;
+/* @hide */
+@Backing(type="byte") @VintfStability
+enum SensorStrength {
+  CONVENIENCE,
+  WEAK,
+  STRONG,
+}
diff --git a/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/WakeReason.aidl b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/WakeReason.aidl
new file mode 100644
index 0000000..6a08776
--- /dev/null
+++ b/biometrics/common/aidl/aidl_api/android.hardware.biometrics.common/4/android/hardware/biometrics/common/WakeReason.aidl
@@ -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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// 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.biometrics.common;
+/* @hide */
+@Backing(type="int") @VintfStability
+enum WakeReason {
+  UNKNOWN,
+  POWER_BUTTON,
+  GESTURE,
+  WAKE_KEY,
+  WAKE_MOTION,
+  LID,
+  DISPLAY_GROUP_ADDED,
+  TAP,
+  LIFT,
+  BIOMETRIC,
+}