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;
+}