diff --git a/sensors/aidl/Android.bp b/sensors/aidl/Android.bp
new file mode 100644
index 0000000..fd1ac44
--- /dev/null
+++ b/sensors/aidl/Android.bp
@@ -0,0 +1,25 @@
+// This is the expected build file, but it may not be right in all cases
+
+aidl_interface {
+    name: "android.hardware.sensors",
+    vendor_available: true,
+    srcs: ["android/hardware/sensors/*.aidl"],
+    imports: [
+        "android.hardware.common-V2",
+        "android.hardware.common.fmq-V1",
+    ],
+    stability: "vintf",
+    backend: {
+        cpp: {
+            enabled: false,
+        },
+        java: {
+            enabled: false,
+        },
+        ndk: {
+            vndk: {
+                enabled: true,
+            },
+        },
+    },
+}
diff --git a/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/AdditionalInfo.aidl b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/AdditionalInfo.aidl
new file mode 100644
index 0000000..5184723
--- /dev/null
+++ b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/AdditionalInfo.aidl
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.sensors;
+@FixedSize @VintfStability
+parcelable AdditionalInfo {
+  android.hardware.sensors.AdditionalInfo.AdditionalInfoType type;
+  int serial;
+  android.hardware.sensors.AdditionalInfo.AdditionalInfoPayload payload;
+  @FixedSize @VintfStability
+  union AdditionalInfoPayload {
+    android.hardware.sensors.AdditionalInfo.AdditionalInfoPayload.Int32Values dataInt32;
+    android.hardware.sensors.AdditionalInfo.AdditionalInfoPayload.FloatValues dataFloat;
+    @FixedSize @VintfStability
+    parcelable Int32Values {
+      int[14] values;
+    }
+    @FixedSize @VintfStability
+    parcelable FloatValues {
+      float[14] values;
+    }
+  }
+  @Backing(type="int") @VintfStability
+  enum AdditionalInfoType {
+    AINFO_BEGIN = 0,
+    AINFO_END = 1,
+    AINFO_UNTRACKED_DELAY = 65536,
+    AINFO_INTERNAL_TEMPERATURE = 65537,
+    AINFO_VEC3_CALIBRATION = 65538,
+    AINFO_SENSOR_PLACEMENT = 65539,
+    AINFO_SAMPLING = 65540,
+    AINFO_CHANNEL_NOISE = 131072,
+    AINFO_CHANNEL_SAMPLER = 131073,
+    AINFO_CHANNEL_FILTER = 131074,
+    AINFO_CHANNEL_LINEAR_TRANSFORM = 131075,
+    AINFO_CHANNEL_NONLINEAR_MAP = 131076,
+    AINFO_CHANNEL_RESAMPLER = 131077,
+    AINFO_LOCAL_GEOMAGNETIC_FIELD = 196608,
+    AINFO_LOCAL_GRAVITY = 196609,
+    AINFO_DOCK_STATE = 196610,
+    AINFO_HIGH_PERFORMANCE_MODE = 196611,
+    AINFO_MAGNETIC_FIELD_CALIBRATION = 196612,
+    AINFO_CUSTOM_START = 268435456,
+    AINFO_DEBUGGING_START = 1073741824,
+  }
+}
diff --git a/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/DynamicSensorInfo.aidl b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/DynamicSensorInfo.aidl
new file mode 100644
index 0000000..0c9a493
--- /dev/null
+++ b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/DynamicSensorInfo.aidl
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.sensors;
+@FixedSize @VintfStability
+parcelable DynamicSensorInfo {
+  boolean connected;
+  int sensorHandle;
+  android.hardware.sensors.DynamicSensorInfo.Uuid uuid;
+  @FixedSize @VintfStability
+  parcelable Uuid {
+    byte[16] values;
+  }
+}
diff --git a/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/Event.aidl b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/Event.aidl
new file mode 100644
index 0000000..186b2be
--- /dev/null
+++ b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/Event.aidl
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.sensors;
+@FixedSize @VintfStability
+parcelable Event {
+  long timestamp;
+  int sensorHandle;
+  android.hardware.sensors.SensorType sensorType;
+  android.hardware.sensors.Event.EventPayload payload;
+  @FixedSize @VintfStability
+  union EventPayload {
+    android.hardware.sensors.Event.EventPayload.Vec3 vec3;
+    android.hardware.sensors.Event.EventPayload.Vec4 vec4;
+    android.hardware.sensors.Event.EventPayload.Uncal uncal;
+    android.hardware.sensors.Event.EventPayload.MetaData meta;
+    float scalar;
+    long stepCount;
+    android.hardware.sensors.Event.EventPayload.HeartRate heartRate;
+    android.hardware.sensors.Event.EventPayload.Pose6Dof pose6DOF;
+    android.hardware.sensors.DynamicSensorInfo dynamic;
+    android.hardware.sensors.AdditionalInfo additional;
+    android.hardware.sensors.Event.EventPayload.Data data;
+    @FixedSize @VintfStability
+    parcelable Vec4 {
+      float x;
+      float y;
+      float z;
+      float w;
+    }
+    @FixedSize @VintfStability
+    parcelable Vec3 {
+      float x;
+      float y;
+      float z;
+      android.hardware.sensors.SensorStatus status;
+    }
+    @FixedSize @VintfStability
+    parcelable Uncal {
+      float x;
+      float y;
+      float z;
+      float xBias;
+      float yBias;
+      float zBias;
+    }
+    @FixedSize @VintfStability
+    parcelable HeartRate {
+      float bpm;
+      android.hardware.sensors.SensorStatus status;
+    }
+    @FixedSize @VintfStability
+    parcelable MetaData {
+      android.hardware.sensors.Event.EventPayload.MetaData.MetaDataEventType what;
+      @Backing(type="int") @VintfStability
+      enum MetaDataEventType {
+        META_DATA_FLUSH_COMPLETE = 1,
+      }
+    }
+    @FixedSize @VintfStability
+    parcelable Pose6Dof {
+      float[15] values;
+    }
+    @FixedSize @VintfStability
+    parcelable Data {
+      float[16] values;
+    }
+  }
+}
diff --git a/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/ISensors.aidl b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/ISensors.aidl
new file mode 100644
index 0000000..f60f5bb
--- /dev/null
+++ b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/ISensors.aidl
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.sensors;
+@VintfStability
+interface ISensors {
+  void activate(in int sensorHandle, in boolean enabled);
+  void batch(in int sensorHandle, in long samplingPeriodNs, in long maxReportLatencyNs);
+  int configDirectReport(in int sensorHandle, in int channelHandle, in android.hardware.sensors.ISensors.RateLevel rate);
+  void flush(in int sensorHandle);
+  android.hardware.sensors.SensorInfo[] getSensorsList();
+  void initialize(in android.hardware.common.fmq.MQDescriptor<android.hardware.sensors.Event,android.hardware.common.fmq.SynchronizedReadWrite> eventQueueDescriptor, in android.hardware.common.fmq.MQDescriptor<int,android.hardware.common.fmq.SynchronizedReadWrite> wakeLockDescriptor, in android.hardware.sensors.ISensorsCallback sensorsCallback);
+  void injectSensorData(in android.hardware.sensors.Event event);
+  int registerDirectChannel(in android.hardware.sensors.ISensors.SharedMemInfo mem);
+  void setOperationMode(in android.hardware.sensors.ISensors.OperationMode mode);
+  void unregisterDirectChannel(in int channelHandle);
+  const int ERROR_NO_MEMORY = -12;
+  const int ERROR_BAD_VALUE = -22;
+  const int WAKE_LOCK_TIMEOUT_SECONDS = 1;
+  const int EVENT_QUEUE_FLAG_BITS_READ_AND_PROCESS = 1;
+  const int EVENT_QUEUE_FLAG_BITS_EVENTS_READ = 2;
+  const int WAKE_LOCK_QUEUE_FLAG_BITS_DATA_WRITTEN = 1;
+  const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_FIELD = 0;
+  const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_REPORT_TOKEN = 4;
+  const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_SENSOR_TYPE = 8;
+  const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_ATOMIC_COUNTER = 12;
+  const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_TIMESTAMP = 16;
+  const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_DATA = 24;
+  const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_RESERVED = 88;
+  const int DIRECT_REPORT_SENSOR_EVENT_TOTAL_LENGTH = 104;
+  @Backing(type="int") @VintfStability
+  enum RateLevel {
+    STOP = 0,
+    NORMAL = 1,
+    FAST = 2,
+    VERY_FAST = 3,
+  }
+  @Backing(type="int") @VintfStability
+  enum OperationMode {
+    NORMAL = 0,
+    DATA_INJECTION = 1,
+  }
+  @VintfStability
+  parcelable SharedMemInfo {
+    android.hardware.sensors.ISensors.SharedMemInfo.SharedMemType type;
+    android.hardware.sensors.ISensors.SharedMemInfo.SharedMemFormat format;
+    int size;
+    android.hardware.common.NativeHandle memoryHandle;
+    @Backing(type="int") @VintfStability
+    enum SharedMemFormat {
+      SENSORS_EVENT = 1,
+    }
+    @Backing(type="int") @VintfStability
+    enum SharedMemType {
+      ASHMEM = 1,
+      GRALLOC = 2,
+    }
+  }
+}
diff --git a/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/ISensorsCallback.aidl b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/ISensorsCallback.aidl
new file mode 100644
index 0000000..78ab567
--- /dev/null
+++ b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/ISensorsCallback.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.sensors;
+@VintfStability
+interface ISensorsCallback {
+  void onDynamicSensorsConnected(in android.hardware.sensors.SensorInfo[] sensorInfos);
+  void onDynamicSensorsDisconnected(in int[] sensorHandles);
+}
diff --git a/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorInfo.aidl b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorInfo.aidl
new file mode 100644
index 0000000..996be3d
--- /dev/null
+++ b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorInfo.aidl
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.sensors;
+@VintfStability
+parcelable SensorInfo {
+  int sensorHandle;
+  String name;
+  String vendor;
+  int version;
+  android.hardware.sensors.SensorType type;
+  String typeAsString;
+  float maxRange;
+  float resolution;
+  float power;
+  int minDelayUs;
+  int fifoReservedEventCount;
+  int fifoMaxEventCount;
+  String requiredPermission;
+  int maxDelayUs;
+  int flags;
+  const int SENSOR_FLAG_BITS_WAKE_UP = 1;
+  const int SENSOR_FLAG_BITS_CONTINUOUS_MODE = 0;
+  const int SENSOR_FLAG_BITS_ON_CHANGE_MODE = 2;
+  const int SENSOR_FLAG_BITS_ONE_SHOT_MODE = 4;
+  const int SENSOR_FLAG_BITS_SPECIAL_REPORTING_MODE = 6;
+  const int SENSOR_FLAG_BITS_DATA_INJECTION = 16;
+  const int SENSOR_FLAG_BITS_DYNAMIC_SENSOR = 32;
+  const int SENSOR_FLAG_BITS_ADDITIONAL_INFO = 64;
+  const int SENSOR_FLAG_BITS_DIRECT_CHANNEL_ASHMEM = 1024;
+  const int SENSOR_FLAG_BITS_DIRECT_CHANNEL_GRALLOC = 2048;
+  const int SENSOR_FLAG_BITS_MASK_REPORTING_MODE = 14;
+  const int SENSOR_FLAG_BITS_MASK_DIRECT_REPORT = 896;
+  const int SENSOR_FLAG_BITS_MASK_DIRECT_CHANNEL = 3072;
+  const int SENSOR_FLAG_SHIFT_REPORTING_MODE = 1;
+  const int SENSOR_FLAG_SHIFT_DATA_INJECTION = 4;
+  const int SENSOR_FLAG_SHIFT_DYNAMIC_SENSOR = 5;
+  const int SENSOR_FLAG_SHIFT_ADDITIONAL_INFO = 6;
+  const int SENSOR_FLAG_SHIFT_DIRECT_REPORT = 7;
+  const int SENSOR_FLAG_SHIFT_DIRECT_CHANNEL = 10;
+}
diff --git a/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorStatus.aidl b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorStatus.aidl
new file mode 100644
index 0000000..4521710
--- /dev/null
+++ b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorStatus.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.sensors;
+@Backing(type="byte") @VintfStability
+enum SensorStatus {
+  NO_CONTACT = -1,
+  UNRELIABLE = 0,
+  ACCURACY_LOW = 1,
+  ACCURACY_MEDIUM = 2,
+  ACCURACY_HIGH = 3,
+}
diff --git a/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorType.aidl b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorType.aidl
new file mode 100644
index 0000000..4f3b5b2
--- /dev/null
+++ b/sensors/aidl/aidl_api/android.hardware.sensors/current/android/hardware/sensors/SensorType.aidl
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.sensors;
+@Backing(type="int") @VintfStability
+enum SensorType {
+  META_DATA = 0,
+  ACCELEROMETER = 1,
+  MAGNETIC_FIELD = 2,
+  ORIENTATION = 3,
+  GYROSCOPE = 4,
+  LIGHT = 5,
+  PRESSURE = 6,
+  PROXIMITY = 8,
+  GRAVITY = 9,
+  LINEAR_ACCELERATION = 10,
+  ROTATION_VECTOR = 11,
+  RELATIVE_HUMIDITY = 12,
+  AMBIENT_TEMPERATURE = 13,
+  MAGNETIC_FIELD_UNCALIBRATED = 14,
+  GAME_ROTATION_VECTOR = 15,
+  GYROSCOPE_UNCALIBRATED = 16,
+  SIGNIFICANT_MOTION = 17,
+  STEP_DETECTOR = 18,
+  STEP_COUNTER = 19,
+  GEOMAGNETIC_ROTATION_VECTOR = 20,
+  HEART_RATE = 21,
+  TILT_DETECTOR = 22,
+  WAKE_GESTURE = 23,
+  GLANCE_GESTURE = 24,
+  PICK_UP_GESTURE = 25,
+  WRIST_TILT_GESTURE = 26,
+  DEVICE_ORIENTATION = 27,
+  POSE_6DOF = 28,
+  STATIONARY_DETECT = 29,
+  MOTION_DETECT = 30,
+  HEART_BEAT = 31,
+  DYNAMIC_SENSOR_META = 32,
+  ADDITIONAL_INFO = 33,
+  LOW_LATENCY_OFFBODY_DETECT = 34,
+  ACCELEROMETER_UNCALIBRATED = 35,
+  HINGE_ANGLE = 36,
+  DEVICE_PRIVATE_BASE = 65536,
+}
diff --git a/sensors/aidl/android/hardware/sensors/AdditionalInfo.aidl b/sensors/aidl/android/hardware/sensors/AdditionalInfo.aidl
new file mode 100644
index 0000000..9fe2d39
--- /dev/null
+++ b/sensors/aidl/android/hardware/sensors/AdditionalInfo.aidl
@@ -0,0 +1,234 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors;
+
+@FixedSize
+@VintfStability
+parcelable AdditionalInfo {
+    /**
+     * type of payload data, see AdditionalInfoType
+     */
+    AdditionalInfoType type;
+
+    /**
+     * sequence number of this frame for this type
+     */
+    int serial;
+
+    AdditionalInfoPayload payload;
+
+    @FixedSize
+    @VintfStability
+    union AdditionalInfoPayload {
+        Int32Values dataInt32;
+        FloatValues dataFloat;
+
+        @FixedSize
+        @VintfStability
+        parcelable Int32Values {
+            int[14] values;
+        }
+
+        @FixedSize
+        @VintfStability
+        parcelable FloatValues {
+            float[14] values;
+        }
+    }
+
+    @VintfStability
+    @Backing(type="int")
+    enum AdditionalInfoType {
+        /**
+         * Marks the beginning of additional information frames
+         */
+        AINFO_BEGIN = 0,
+
+        /**
+         * Marks the end of additional information frames
+         */
+        AINFO_END = 1,
+
+        /**
+         * Estimation of the delay that is not tracked by sensor timestamps. This
+         * includes delay introduced by sensor front-end filtering, data transport,
+         * etc.
+         * float[2]: delay in seconds, standard deviation of estimated value
+         */
+        AINFO_UNTRACKED_DELAY = 0x10000,
+
+        /**
+         * float: Celsius temperature
+         */
+        AINFO_INTERNAL_TEMPERATURE,
+
+        /**
+         * First three rows of a homogeneous matrix, which represents calibration to
+         * a three-element vector raw sensor reading.
+         * float[12]: 3x4 matrix in row major order
+         */
+        AINFO_VEC3_CALIBRATION,
+
+        /**
+         * Provides the orientation and location of the sensor element in terms of
+         * the Android coordinate system. This data is given as a 3x4 matrix
+         * consisting of a 3x3 rotation matrix (R) concatenated with a 3x1 location
+         * vector (t). The rotation matrix provides the orientation of the Android
+         * device coordinate frame relative to the local coordinate frame of the
+         * sensor. Note that assuming the axes conventions of the sensor are the
+         * same as Android, this is the inverse of the matrix applied to raw
+         * samples read from the sensor to convert them into the Android
+         * representation. The location vector represents the translation from the
+         * origin of the Android sensor coordinate system to the geometric center
+         * of the sensor, specified in millimeters (mm).
+         *
+         * float[12]: 3x4 matrix in row major order [R; t]
+         *
+         * Example:
+         *     This raw buffer: {0, 1, 0, 0, -1, 0, 0, 10, 0, 0, 1, -2.5}
+         *     Corresponds to this 3x4 matrix:
+         *         0 1 0    0
+         *        -1 0 0   10
+         *         0 0 1 -2.5
+         *     The sensor is oriented such that:
+         *         - the device X axis corresponds to the sensor's local -Y axis
+         *         - the device Y axis corresponds to the sensor's local X axis
+         *         - the device Z axis and sensor's local Z axis are equivalent
+         *     In other words, if viewing the origin of the Android coordinate
+         *     system from the positive Z direction, the device coordinate frame is
+         *     to be rotated 90 degrees counter-clockwise about the Z axis to align
+         *     with the sensor's local coordinate frame. Equivalently, a vector in
+         *     the Android coordinate frame may be multiplied with R to rotate it
+         *     90 degrees clockwise (270 degrees counter-clockwise), yielding its
+         *     representation in the sensor's coordinate frame.
+         *     Relative to the origin of the Android coordinate system, the physical
+         *     center of the sensor is located 10mm in the positive Y direction, and
+         *     2.5mm in the negative Z direction.
+         */
+        AINFO_SENSOR_PLACEMENT,
+
+        /**
+         * float[2]: raw sample period in seconds,
+         *           standard deviation of sampling period
+         */
+        AINFO_SAMPLING,
+
+        /**
+         * int32_t: noise type
+         * float[n]: parameters
+         */
+        AINFO_CHANNEL_NOISE = 0x20000,
+
+        /**
+         * float[3]: sample period, standard deviation of sample period,
+         * quantization unit
+         */
+        AINFO_CHANNEL_SAMPLER,
+
+        /**
+         * Represents a filter:
+         *   \sum_j a_j y[n-j] == \sum_i b_i x[n-i]
+         *
+         * int32_t[3]: number of feedforward coeffients M,
+         *             number of feedback coefficients N (for FIR filter, N = 1).
+         *             bit mask that represents which element the filter is applied
+         *             to. (bit 0==1 means this filter applies to vector element 0).
+         * float[M+N]: filter coefficients (b0, b1, ..., b_{M-1}), then
+         *             (a0, a1, ..., a_{N-1}), a0 is always 1.
+         *
+         * Multiple frames may be needed for higher number of taps.
+         */
+        AINFO_CHANNEL_FILTER,
+
+        /**
+         * int32_t[2]: size in (row, column) ... 1st frame
+         * float[n]: matrix element values in row major order.
+         */
+        AINFO_CHANNEL_LINEAR_TRANSFORM,
+
+        /**
+         * int32_t[2]: extrapolate method, interpolate method
+         * float[n]: mapping key points in pairs, (in, out)...
+         *           (may be used to model saturation).
+         */
+        AINFO_CHANNEL_NONLINEAR_MAP,
+
+        /**
+         * int32_t: resample method (0-th order, 1st order...)
+         * float[1]: resample ratio (upsampling if < 1.0, downsampling if > 1.0).
+         */
+        AINFO_CHANNEL_RESAMPLER,
+
+        /**
+         * Operation environment parameters section
+         * Types in the following section is sent down (instead of reported from)
+         * device as additional information to aid sensor operation. Data is sent
+         * via injectSensorData() function to sensor handle -1 denoting all sensors
+         * in device.
+         *
+         *
+         * Local geomagnetic field information based on device geo location. This
+         * type is primarily for for magnetic field calibration and rotation vector
+         * sensor fusion.
+         * float[3]: strength (uT), declination and inclination angle (rad).
+         */
+        AINFO_LOCAL_GEOMAGNETIC_FIELD = 0x30000,
+
+        /**
+         * Local gravitational acceleration strength at device geo location.
+         * float: gravitational acceleration norm in m/s^2.
+         */
+        AINFO_LOCAL_GRAVITY,
+
+        /**
+         * Device dock state.
+         * int32_t: dock state following Android API Intent.EXTRA_DOCK_STATE
+         * definition, undefined value is ignored.
+         */
+        AINFO_DOCK_STATE,
+
+        /**
+         * High performance mode hint. Device is able to use up more power and take
+         * more resources to improve throughput and latency in high performance mode.
+         * One possible use case is virtual reality, when sensor latency need to be
+         * carefully controlled.
+         * int32_t: 1 or 0, denote if device is in/out of high performance mode,
+         *          other values is ignored.
+         */
+        AINFO_HIGH_PERFORMANCE_MODE,
+
+        /**
+         * Magnetic field calibration hint. Device is notified when manually
+         * triggered magnetic field calibration procedure is started or stopped. The
+         * calibration procedure is assumed timed out after 1 minute from start,
+         * even if an explicit stop is not received.
+         *
+         * int32_t: 1 for start, 0 for stop, other value is ignored.
+         */
+        AINFO_MAGNETIC_FIELD_CALIBRATION,
+
+        /**
+         * Custom information
+         */
+        AINFO_CUSTOM_START = 0x10000000,
+
+        /**
+         * Debugging
+         */
+        AINFO_DEBUGGING_START = 0x40000000,
+    }
+}
diff --git a/sensors/aidl/android/hardware/sensors/DynamicSensorInfo.aidl b/sensors/aidl/android/hardware/sensors/DynamicSensorInfo.aidl
new file mode 100644
index 0000000..4b14ed0
--- /dev/null
+++ b/sensors/aidl/android/hardware/sensors/DynamicSensorInfo.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors;
+
+@VintfStability
+@FixedSize
+parcelable DynamicSensorInfo {
+    boolean connected;
+
+    int sensorHandle;
+
+    /**
+     * UUID of a dynamic sensor (using RFC 4122 byte order)
+     * For UUID 12345678-90AB-CDEF-1122-334455667788 the uuid field is
+     * initialized as:
+     *   {0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF, 0x11, ...}
+     */
+    Uuid uuid;
+
+    @FixedSize
+    @VintfStability
+    parcelable Uuid {
+        byte[16] values;
+    }
+}
diff --git a/sensors/aidl/android/hardware/sensors/Event.aidl b/sensors/aidl/android/hardware/sensors/Event.aidl
new file mode 100644
index 0000000..6ef9acb
--- /dev/null
+++ b/sensors/aidl/android/hardware/sensors/Event.aidl
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors;
+
+import android.hardware.sensors.AdditionalInfo;
+import android.hardware.sensors.DynamicSensorInfo;
+import android.hardware.sensors.SensorStatus;
+import android.hardware.sensors.SensorType;
+
+@VintfStability
+@FixedSize
+parcelable Event {
+    /**
+     * Time measured in nanoseconds, in "elapsedRealtimeNano()'s" timebase.
+     */
+    long timestamp;
+
+    /**
+     * sensor identifier
+     */
+    int sensorHandle;
+
+    SensorType sensorType;
+
+    /**
+     * Union discriminated on sensorType
+     */
+    EventPayload payload;
+
+    /*
+     * acceleration values are in meter per second per second (m/s^2)
+     * magnetic vector values are in micro-Tesla (uT)
+     * orientation values are in degrees
+     * gyroscope values are in rad/s
+     * temperature is in degrees centigrade (Celsius)
+     * distance in centimeters
+     * light in SI lux units
+     * pressure in hectopascal (hPa)
+     * relative humidity in percent
+     */
+    @VintfStability
+    @FixedSize
+    union EventPayload {
+        /**
+         * SensorType::ACCELEROMETER, SensorType::MAGNETIC_FIELD,
+         * SensorType::ORIENTATION, SensorType::GYROSCOPE, SensorType::GRAVITY,
+         * SensorType::LINEAR_ACCELERATION
+         */
+        Vec3 vec3;
+
+        /**
+         * SensorType::GAME_ROTATION_VECTOR
+         */
+        Vec4 vec4;
+
+        /**
+         * SensorType::MAGNETIC_FIELD_UNCALIBRATED,
+         * SensorType::GYROSCOPE_UNCALIBRATED
+         * SensorType::ACCELEROMETER_UNCALIBRATED
+         */
+        Uncal uncal;
+
+        /**
+         * SensorType::META_DATA
+         */
+        MetaData meta;
+
+        /**
+         * SensorType::DEVICE_ORIENTATION, SensorType::LIGHT, SensorType::PRESSURE,
+         * SensorType::TEMPERATURE, SensorType::PROXIMITY,
+         * SensorType::RELATIVE_HUMIDITY, SensorType::AMBIENT_TEMPERATURE,
+         * SensorType::SIGNIFICANT_MOTION, SensorType::STEP_DETECTOR,
+         * SensorType::TILT_DETECTOR, SensorType::WAKE_GESTURE,
+         * SensorType::GLANCE_GESTURE, SensorType::PICK_UP_GESTURE,
+         * SensorType::WRIST_TILT_GESTURE, SensorType::STATIONARY_DETECT,
+         * SensorType::MOTION_DETECT, SensorType::HEART_BEAT,
+         * SensorType::LOW_LATENCY_OFFBODY_DETECT
+         */
+        float scalar;
+
+        /**
+         * SensorType::STEP_COUNTER
+         */
+        long stepCount;
+
+        /**
+         * SensorType::HEART_RATE
+         */
+        HeartRate heartRate;
+
+        /**
+         * SensorType::POSE_6DOF
+         */
+        Pose6Dof pose6DOF;
+
+        /**
+         * SensorType::DYNAMIC_SENSOR_META
+         */
+        DynamicSensorInfo dynamic;
+
+        /**
+         * SensorType::ADDITIONAL_INFO
+         */
+        AdditionalInfo additional;
+
+        /**
+         * The following sensors should use the data field:
+         * - Undefined/custom sensor type >= SensorType::DEVICE_PRIVATE_BASE
+         * - SensorType::ROTATION_VECTOR, SensorType::GEOMAGNETIC_ROTATION_VECTOR:
+         *   - These are Vec4 types with an additional float accuracy field,
+         *     where data[4] is the estimated heading accuracy in radians
+         *     (-1 if unavailable, and invalid if not in the range (0, 2 * pi]).
+         */
+        Data data;
+
+        @FixedSize
+        @VintfStability
+        parcelable Vec4 {
+            float x;
+            float y;
+            float z;
+            float w;
+        }
+
+        @FixedSize
+        @VintfStability
+        parcelable Vec3 {
+            float x;
+            float y;
+            float z;
+            SensorStatus status;
+        }
+
+        @FixedSize
+        @VintfStability
+        parcelable Uncal {
+            float x;
+            float y;
+            float z;
+            float xBias;
+            float yBias;
+            float zBias;
+        }
+
+        @FixedSize
+        @VintfStability
+        parcelable HeartRate {
+            /**
+             * Heart rate in beats per minute.
+             * Set to 0 when status is SensorStatus::UNRELIABLE or
+             * SensorStatus::NO_CONTACT
+             */
+            float bpm;
+            /**
+             * Status of the heart rate sensor for this reading.
+             */
+            SensorStatus status;
+        }
+
+        @FixedSize
+        @VintfStability
+        parcelable MetaData {
+            MetaDataEventType what;
+
+            @VintfStability
+            @Backing(type="int")
+            enum MetaDataEventType {
+                META_DATA_FLUSH_COMPLETE = 1,
+            }
+        }
+
+        @FixedSize
+        @VintfStability
+        parcelable Pose6Dof {
+            float[15] values;
+        }
+
+        @FixedSize
+        @VintfStability
+        parcelable Data {
+            float[16] values;
+        }
+    }
+}
diff --git a/sensors/aidl/android/hardware/sensors/ISensors.aidl b/sensors/aidl/android/hardware/sensors/ISensors.aidl
new file mode 100644
index 0000000..2ac1884
--- /dev/null
+++ b/sensors/aidl/android/hardware/sensors/ISensors.aidl
@@ -0,0 +1,375 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors;
+
+import android.hardware.common.NativeHandle;
+import android.hardware.common.fmq.MQDescriptor;
+import android.hardware.common.fmq.SynchronizedReadWrite;
+import android.hardware.sensors.Event;
+import android.hardware.sensors.ISensorsCallback;
+import android.hardware.sensors.SensorInfo;
+
+@VintfStability
+interface ISensors {
+    /**
+     * Activate/de-activate one sensor.
+     *
+     * After sensor de-activation, existing sensor events that have not
+     * been written to the event queue must be abandoned immediately so that
+     * subsequent activations do not get stale sensor events (events
+     * that are generated prior to the latter activation).
+     *
+     * @param sensorHandle is the handle of the sensor to change.
+     * @param enabled set to true to enable, or false to disable the sensor.
+     * @return Status::ok on success
+     *         EX_ILLEGAL_ARGUMENT if the sensorHandle is invalid.
+     */
+    void activate(in int sensorHandle, in boolean enabled);
+
+    /**
+     * Sets a sensor’s parameters, including sampling frequency and maximum
+     * report latency. This function can be called while the sensor is
+     * activated, in which case it must not cause any sensor measurements to
+     * be lost: transitioning from one sampling rate to the other cannot cause
+     * lost events, nor can transitioning from a high maximum report latency to
+     * a low maximum report latency.
+     *
+     * @param sensorHandle handle of sensor to be changed.
+     * @param samplingPeriodNs specifies sensor sample period in nanoseconds.
+     * @param maxReportLatencyNs allowed delay time before an event is sampled
+     *     to time of report.
+     * @return Status::ok on success
+     *         EX_ILLEGAL_ARGUMENT if any parameters are invalid.
+     */
+    void batch(in int sensorHandle, in long samplingPeriodNs, in long maxReportLatencyNs);
+
+    /**
+     * Configure direct sensor event report in direct channel.
+     *
+     * This function start, modify rate or stop direct report of a sensor in a
+     * certain direct channel.
+     *
+     * @param sensorHandle handle of sensor to be configured. When combined
+     *     with STOP rate, sensorHandle can be -1 to denote all active sensors
+     *     in the direct channel specified by channel Handle.
+     * @param channelHandle handle of direct channel to be configured.
+     * @param rate rate level, see RateLevel enum.
+     * @param out reportToken The report token, ignored if rate is STOP.
+     *     See SharedMemFormat.
+     * @return The direct report token to identify multiple sensors of the same type in a single
+     *         direct channel.
+     * @return Status::ok on success
+     *         EX_ILLEGAL_ARGUMENT if the parameter is invalid (e.g. unsupported rate level
+     *          for sensor, channelHandle does not exist, etc).
+     *         EX_UNSUPPORTED_OPERATION if this functionality is unsupported.
+     */
+    int configDirectReport(in int sensorHandle, in int channelHandle, in RateLevel rate);
+
+    /**
+     * Trigger a flush of internal FIFO.
+     *
+     * Flush adds a FLUSH_COMPLETE metadata event to the end of the "batch mode"
+     * FIFO for the specified sensor and flushes the FIFO.  If the FIFO is empty
+     * or if the sensor doesn't support batching (FIFO size zero), return
+     * SUCCESS and add a trivial FLUSH_COMPLETE event added to the event stream.
+     * This applies to all sensors other than one-shot sensors. If the sensor
+     * is a one-shot sensor, flush must return EX_ILLEGAL_ARGUMENT and not generate any
+     * flush complete metadata.  If the sensor is not active at the time flush()
+     * is called, flush() return EX_ILLEGAL_ARGUMENT.
+     *
+     * @param sensorHandle handle of sensor to be flushed.
+     * @return Status::ok on success
+     *         EX_ILLEGAL_ARGUMENT if the sensorHandle is invalid.
+     */
+    void flush(in int sensorHandle);
+
+    /**
+     * Enumerate all available (static) sensors.
+     *
+     * The SensorInfo for each sensor returned by getSensorsList must be stable
+     * from the initial call to getSensorsList after a device boot until the
+     * entire system restarts. The SensorInfo for each sensor must not change
+     * between subsequent calls to getSensorsList, even across restarts of the
+     * HAL and its dependencies (for example, the sensor handle for a given
+     * sensor must not change across HAL restarts).
+     */
+    SensorInfo[] getSensorsList();
+
+    /**
+     * Initialize the Sensors HAL's Fast Message Queues (FMQ) and callback.
+     *
+     * The Fast Message Queues (FMQ) that are used to send data between the
+     * framework and the HAL. The callback is used by the HAL to notify the
+     * framework of asynchronous events, such as a dynamic sensor connection.
+     *
+     * The Event FMQ is used to transport sensor events from the HAL to the
+     * framework. The Event FMQ is created using the eventQueueDescriptor.
+     * Data may only be written to the Event FMQ. Data must not be read from
+     * the Event FMQ since the framework is the only reader. Upon receiving
+     * sensor events, the HAL writes the sensor events to the Event FMQ.
+     *
+     * Once the HAL is finished writing sensor events to the Event FMQ, the HAL
+     * must notify the framework that sensor events are available to be read and
+     * processed. This is accomplished by either:
+     *     1) Calling the Event FMQ’s EventFlag::wake() function with
+     * EventQueueFlagBits::READ_AND_PROCESS
+     *     2) Setting the write notification in the Event FMQ’s writeBlocking()
+     *        function to EventQueueFlagBits::READ_AND_PROCESS.
+     *
+     * If the Event FMQ’s writeBlocking() function is used, the read
+     * notification must be set to EventQueueFlagBits::EVENTS_READ in order to
+     * be notified and unblocked when the framework has successfully read events
+     * from the Event FMQ.
+     *
+     * The Wake Lock FMQ is used by the framework to notify the HAL when it is
+     * safe to release its wake_lock. When the framework receives WAKE_UP events
+     * from the Event FMQ and the framework has acquired a wake_lock, the
+     * framework must write the number of WAKE_UP events processed to the Wake
+     * Lock FMQ. When the HAL reads the data from the Wake Lock FMQ, the HAL
+     * decrements its current count of unprocessed WAKE_UP events and releases
+     * its wake_lock if the current count of unprocessed WAKE_UP events is
+     * zero. It is important to note that the HAL must acquire the wake lock and
+     * update its internal state regarding the number of outstanding WAKE_UP
+     * events _before_ posting the event to the Wake Lock FMQ, in order to avoid
+     * a race condition that can lead to loss of wake lock synchronization with
+     * the framework.
+     *
+     * The framework must use the WAKE_LOCK_QUEUE_FLAG_BITS_DATA_WRITTEN value to
+     * notify the HAL that data has been written to the Wake Lock FMQ and must
+     * be read by HAL.
+     *
+     * The ISensorsCallback is used by the HAL to notify the framework of
+     * asynchronous events, such as a dynamic sensor connection.
+     *
+     * The name of any wake_lock acquired by the Sensors HAL for WAKE_UP events
+     * must begin with "SensorsHAL_WAKEUP".
+     *
+     * If WAKE_LOCK_TIMEOUT_SECONDS has elapsed since the most recent WAKE_UP
+     * event was written to the Event FMQ without receiving a message on the
+     * Wake Lock FMQ, then any held wake_lock for WAKE_UP events must be
+     * released.
+     *
+     * If either the Event FMQ or the Wake Lock FMQ is already initialized when
+     * initialize is invoked, then both existing FMQs must be discarded and the
+     * new descriptors must be used to create new FMQs within the HAL. The
+     * number of outstanding WAKE_UP events should also be reset to zero, and
+     * any outstanding wake_locks held as a result of WAKE_UP events should be
+     * released.
+     *
+     * All active sensor requests and direct channels must be closed and
+     * properly cleaned up when initialize is called in order to ensure that the
+     * HAL and framework's state is consistent (e.g. after a runtime restart).
+     *
+     * initialize must be thread safe and prevent concurrent calls
+     * to initialize from simultaneously modifying state.
+     *
+     * @param eventQueueDescriptor Fast Message Queue descriptor that is used to
+     *     create the Event FMQ which is where sensor events are written. The
+     *     descriptor is obtained from the framework's FMQ that is used to read
+     *     sensor events.
+     * @param wakeLockDescriptor Fast Message Queue descriptor that is used to
+     *     create the Wake Lock FMQ which is where wake_lock events are read
+     *     from. The descriptor is obtained from the framework's FMQ that is
+     *     used to write wake_lock events.
+     * @param sensorsCallback sensors callback that receives asynchronous data
+     *     from the Sensors HAL.
+     * @return Status::ok on success
+     *         EX_ILLEGAL_ARGUMENT if the descriptor is invalid (such as null).
+     */
+    void initialize(in MQDescriptor<Event, SynchronizedReadWrite> eventQueueDescriptor,
+            in MQDescriptor<int, SynchronizedReadWrite> wakeLockDescriptor,
+            in ISensorsCallback sensorsCallback);
+
+    /**
+     * Inject a single sensor event or push operation environment parameters to
+     * device.
+     *
+     * When device is in NORMAL mode, this function is called to push operation
+     * environment data to device. In this operation, Event is always of
+     * SensorType::AdditionalInfo type. See operation environment parameters
+     * section in AdditionalInfoType.
+     *
+     * When device is in DATA_INJECTION mode, this function is also used for
+     * injecting sensor events.
+     *
+     * Regardless of OperationMode, injected SensorType::ADDITIONAL_INFO
+     * type events should not be routed back to the sensor event queue.
+     *
+     * @see AdditionalInfoType
+     * @see OperationMode
+     * @param event sensor event to be injected
+     * @return Status::ok on success
+     *         EX_UNSUPPORTED_OPERATION if this functionality is unsupported.
+     *         EX_SECURITY if the operation is not allowed.
+     *         EX_SERVICE_SPECIFIC on error
+     *         - ERROR_BAD_VALUE if the sensor event cannot be injected.
+     */
+    void injectSensorData(in Event event);
+
+    /**
+     * Register direct report channel.
+     *
+     * Register a direct channel with supplied shared memory information. Upon
+     * return, the sensor hardware is responsible for resetting the memory
+     * content to initial value (depending on memory format settings).
+     *
+     * @param mem shared memory info data structure.
+     * @param out channelHandle The registered channel handle.
+     * @return The direct channel handle, which is positive if successfully registered, and -1
+     *         otherwise.
+     * @return Status::ok on success
+     *         EX_ILLEGAL_ARGUMENT if the shared memory information is not consistent.
+     *         EX_UNSUPPORTED_OPERATION if this functionality is unsupported.
+     *         EX_SERVICE_SPECIFIC on error
+     *         - ERROR_NO_MEMORY if shared memory cannot be used by sensor system.
+     */
+    int registerDirectChannel(in SharedMemInfo mem);
+
+    /**
+     * Place the module in a specific mode.
+     *
+     * @see OperationMode
+     * @param mode The operation mode.
+     * @return Status::ok on success
+     *         EX_UNSUPPORTED_OPERATION if requested mode is not supported.
+     *         EX_SECURITY if the operation is not allowed.
+     */
+    void setOperationMode(in OperationMode mode);
+
+    /**
+     * Unregister direct report channel.
+     *
+     * Unregister a direct channel previously registered using
+     * registerDirectChannel, and remove all active sensor report configured in
+     * still active sensor report configured in the direct channel.
+     *
+     * @param channelHandle handle of direct channel to be unregistered.
+     * @return Status::ok on success
+     *         EX_UNSUPPORTED_OPERATION if direct report is not supported.
+     */
+    void unregisterDirectChannel(in int channelHandle);
+
+    /**
+     * Direct report rate level definition. Except for SENSOR_DIRECT_RATE_STOP, each
+     * rate level covers the range (55%, 220%] * nominal report rate. For example,
+     * if config direct report specify a rate level SENSOR_DIRECT_RATE_FAST, it is
+     * legal for sensor hardware to report event at a rate greater than 110Hz, and
+     * less or equal to 440Hz. Note that rate has to remain steady without variation
+     * before new rate level is configured, i.e. if a sensor is configured to
+     * SENSOR_DIRECT_RATE_FAST and starts to report event at 256Hz, it cannot
+     * change rate to 128Hz after a few seconds of running even if 128Hz is also in
+     * the legal range of SENSOR_DIRECT_RATE_FAST. Thus, it is recommended to
+     * associate report rate with RateLvel statically for single sensor.
+     */
+    @VintfStability
+    @Backing(type="int")
+    enum RateLevel {
+        STOP,
+        NORMAL,
+        FAST,
+        VERY_FAST,
+    }
+
+    @VintfStability
+    @Backing(type="int")
+    enum OperationMode {
+        // Normal operation. Default state of the module.
+        NORMAL = 0,
+        // Loopback mode. Data is injected for the supported sensors by the sensor service in this
+        // mode.
+        DATA_INJECTION = 1,
+    }
+
+    @VintfStability
+    parcelable SharedMemInfo {
+        SharedMemType type;
+        SharedMemFormat format;
+        int size;
+        NativeHandle memoryHandle;
+
+        @VintfStability
+        @Backing(type="int")
+        enum SharedMemFormat {
+            SENSORS_EVENT = 1,
+        }
+
+        @VintfStability
+        @Backing(type="int")
+        enum SharedMemType {
+            ASHMEM = 1,
+            GRALLOC,
+        }
+    }
+
+    /**
+     * Error codes that are used as service specific errors with the AIDL return
+     * value EX_SERVICE_SPECIFIC.
+     */
+    const int ERROR_NO_MEMORY = -12;
+    const int ERROR_BAD_VALUE = -22;
+
+    /**
+     * The maximum number of seconds to wait for a message on the Wake Lock FMQ
+     * before automatically releasing any wake_lock held for a WAKE_UP event.
+     */
+    const int WAKE_LOCK_TIMEOUT_SECONDS = 1;
+
+    /**
+     * Used to notify the Event FMQ that events should be read and processed.
+     */
+    const int EVENT_QUEUE_FLAG_BITS_READ_AND_PROCESS = 1 << 0;
+
+    /**
+     * Used by the framework to signal to the HAL when events have been
+     * successfully read from the Event FMQ.
+     *
+     * If the MessageQueue::writeBlocking function is being used to write sensor
+     * events to the Event FMQ, then the readNotification parameter must be set
+     * to EVENTS_READ.
+     */
+    const int EVENT_QUEUE_FLAG_BITS_EVENTS_READ = 1 << 1;
+
+    /**
+     * Used to notify the HAL that the framework has written data to the Wake
+     * Lock FMQ.
+     */
+    const int WAKE_LOCK_QUEUE_FLAG_BITS_DATA_WRITTEN = 1 << 0;
+
+    /**
+     * Constants related to direct sensor events. The following table illustrates the
+     * data format.
+     *
+     * Offset   Type        Name
+     * -----------------------------------
+     * 0x0000   int32_t     Size (always DIRECT_REPORT_SENSOR_EVENT_TOTAL_LENGTH)
+     * 0x0004   int32_t     Sensor report token
+     * 0x0008   int32_t     Type (see SensorType.aidl)
+     * 0x000C   uint32_t    Atomic counter
+     * 0x0010   int64_t     Timestamp (see Event.aidl)
+     * 0x0018   float[16]/  Data
+     *          int64_t[8]
+     * 0x0058   int32_t[4]  Reserved (set to zero)
+     */
+    const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_FIELD = 0x0;
+    const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_REPORT_TOKEN = 0x4;
+    const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_SENSOR_TYPE = 0x8;
+    const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_ATOMIC_COUNTER = 0xC;
+    const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_TIMESTAMP = 0x10;
+    const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_DATA = 0x18;
+    const int DIRECT_REPORT_SENSOR_EVENT_OFFSET_SIZE_RESERVED = 0x58;
+    const int DIRECT_REPORT_SENSOR_EVENT_TOTAL_LENGTH = 104;
+}
diff --git a/sensors/aidl/android/hardware/sensors/ISensorsCallback.aidl b/sensors/aidl/android/hardware/sensors/ISensorsCallback.aidl
new file mode 100644
index 0000000..01bae52
--- /dev/null
+++ b/sensors/aidl/android/hardware/sensors/ISensorsCallback.aidl
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors;
+
+import android.hardware.sensors.SensorInfo;
+
+@VintfStability
+interface ISensorsCallback {
+    /**
+     * Notify the framework that new dynamic sensors have been connected.
+     *
+     * If a dynamic sensor was previously connected and has not been
+     * disconnected, then that sensor must not be included in sensorInfos.
+     *
+     * @param sensorInfos vector of SensorInfo for each dynamic sensor that
+     *     was connected.
+     */
+    void onDynamicSensorsConnected(in SensorInfo[] sensorInfos);
+
+    /**
+     * Notify the framework that previously connected dynamic sensors have been
+     * disconnected.
+     *
+     * If a dynamic sensor was previously disconnected and has not been
+     * reconnected, then that sensor must not be included in sensorHandles.
+     *
+     * The HAL must ensure that all sensor events from departing dynamic
+     * sensors have been written to the Event FMQ before calling
+     * onDynamicSensorsDisconnected.
+     *
+     * @param sensorHandles vector of sensor handles for each dynamic sensors
+     *     that was disconnected.
+     */
+    void onDynamicSensorsDisconnected(in int[] sensorHandles);
+}
diff --git a/sensors/aidl/android/hardware/sensors/SensorInfo.aidl b/sensors/aidl/android/hardware/sensors/SensorInfo.aidl
new file mode 100644
index 0000000..35caf8b
--- /dev/null
+++ b/sensors/aidl/android/hardware/sensors/SensorInfo.aidl
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors;
+
+import android.hardware.sensors.SensorType;
+
+@VintfStability
+parcelable SensorInfo {
+    /**
+     * handle that identifies this sensors. This handle is used to reference
+     * this sensor throughout the HAL API.
+     */
+    int sensorHandle;
+
+    /**
+     * Name of this sensor.
+     * All sensors of the same "type" must have a different "name".
+     */
+    String name;
+
+    /**
+     * vendor of the hardware part
+     */
+    String vendor;
+
+    /**
+     * version of the hardware part + driver. The value of this field
+     * must increase when the driver is updated in a way that changes the
+     * output of this sensor. This is important for fused sensors when the
+     * fusion algorithm is updated.
+     */
+    int version;
+
+    /**
+     * this sensor's type.
+     */
+    SensorType type;
+
+    /**
+     * type of this sensor as a string.
+     *
+     * When defining an OEM specific sensor or sensor manufacturer specific
+     * sensor, use your reserve domain name as a prefix.
+     * e.g. com.google.glass.onheaddetector
+     *
+     * For sensors of known type defined in SensorType (value <
+     * SensorType::DEVICE_PRIVATE_BASE), this can be an empty string.
+     */
+    String typeAsString;
+
+    /**
+     * maximum range of this sensor's value in SI units
+     */
+    float maxRange;
+
+    /**
+     * smallest difference between two values reported by this sensor
+     */
+    float resolution;
+
+    /**
+     * rough estimate of this sensor's power consumption in mA
+     */
+    float power;
+
+    /**
+     * this value depends on the reporting mode:
+     *
+     *   continuous: minimum sample period allowed in microseconds
+     *   on-change : 0
+     *   one-shot  :-1
+     *   special   : 0, unless otherwise noted
+     */
+    int minDelayUs;
+
+    /**
+     * number of events reserved for this sensor in the batch mode FIFO.
+     * If there is a dedicated FIFO for this sensor, then this is the
+     * size of this FIFO. If the FIFO is shared with other sensors,
+     * this is the size reserved for that sensor and it can be zero.
+     */
+    int fifoReservedEventCount;
+
+    /**
+     * maximum number of events of this sensor that could be batched.
+     * This is especially relevant when the FIFO is shared between
+     * several sensors; this value is then set to the size of that FIFO.
+     */
+    int fifoMaxEventCount;
+
+    /**
+     * permission required to see this sensor, register to it and receive data.
+     * Set to "" if no permission is required. Some sensor types like the
+     * heart rate monitor have a mandatory require_permission.
+     * For sensors that always require a specific permission, like the heart
+     * rate monitor, the android framework might overwrite this string
+     * automatically.
+     */
+    String requiredPermission;
+
+    /**
+     * This value is defined only for continuous mode and on-change sensors.
+     * It is the delay between two sensor events corresponding to the lowest
+     * frequency that this sensor supports. When lower frequencies are requested
+     * through batch()/setDelay() the events will be generated at this frequency
+     * instead.
+     * It can be used by the framework or applications to estimate when the
+     * batch FIFO may be full.
+     *
+     * continuous, on-change: maximum sampling period allowed in microseconds.
+     * one-shot, special : 0
+     */
+    int maxDelayUs;
+
+    /**
+     * Bitmasks defined in SENSOR_FLAG_BITS_* below.
+     */
+    int flags;
+
+    /**
+     * Whether this sensor wakes up the AP from suspend mode when data is
+     * available.  Whenever sensor events are delivered from a wake_up sensor,
+     * the driver needs to hold a wake_lock till the events are read by the
+     * SensorService i.e. till ISensors::poll() is called the next time.
+     * Once poll is called again it means events have been read by the
+     * SensorService, the driver can safely release the wake_lock. SensorService
+     * will continue to hold a wake_lock till the app actually reads the events.
+     */
+    const int SENSOR_FLAG_BITS_WAKE_UP = 1;
+
+    /**
+     * Reporting modes for various sensors. Each sensor will have exactly one of
+     * these modes set.
+     * The least significant 2nd, 3rd and 4th bits are used to represent four
+     * possible reporting modes.
+     */
+    const int SENSOR_FLAG_BITS_CONTINUOUS_MODE = 0;
+    const int SENSOR_FLAG_BITS_ON_CHANGE_MODE = 2;
+    const int SENSOR_FLAG_BITS_ONE_SHOT_MODE = 4;
+    const int SENSOR_FLAG_BITS_SPECIAL_REPORTING_MODE = 6;
+
+    /**
+     * Set this flag if the sensor supports data_injection mode and allows data
+     * to be injected from the SensorService. When in data_injection ONLY
+     * sensors with this flag set are injected sensor data and only sensors with
+     * this flag set are activated. Eg: Accelerometer and Step Counter sensors
+     * can be set with this flag and SensorService will inject accelerometer
+     * data and read the corresponding step counts.
+     */
+    const int SENSOR_FLAG_BITS_DATA_INJECTION = 0x10;
+
+    /**
+     * Set this flag if the sensor is a dynamically connected sensor. See
+     * DynamicSensorInfo and DYNAMIC_SENSOR_META for details.
+     */
+    const int SENSOR_FLAG_BITS_DYNAMIC_SENSOR = 0x20;
+
+    /**
+     * Set this flag if sensor additional information is supported.
+     * See ADDITIONAL_INFO and AdditionalInfo for details.
+     */
+    const int SENSOR_FLAG_BITS_ADDITIONAL_INFO = 0x40;
+
+    /**
+     * Set this flag if sensor suppor direct channel backed by ashmem.
+     * See SharedMemType and registerDirectChannel for more details.
+     */
+    const int SENSOR_FLAG_BITS_DIRECT_CHANNEL_ASHMEM = 0x400;
+
+    /**
+     * Set this flag if sensor suppor direct channel backed by gralloc HAL memory.
+     * See SharedMemType and registerDirectChannel for more details.
+     */
+    const int SENSOR_FLAG_BITS_DIRECT_CHANNEL_GRALLOC = 0x800;
+
+    /**
+     * Flags mask for reporting mode of sensor.
+     */
+    const int SENSOR_FLAG_BITS_MASK_REPORTING_MODE = 0xE;
+
+    /**
+     * Flags mask for direct report maximum rate level support.
+     * See RateLevel.
+     */
+    const int SENSOR_FLAG_BITS_MASK_DIRECT_REPORT = 0x380;
+
+    /**
+     * Flags mask for all direct channel support bits.
+     * See SharedMemType.
+     */
+    const int SENSOR_FLAG_BITS_MASK_DIRECT_CHANNEL = 0xC00;
+
+    /**
+     * Defines the number of bits different pieces of information are shifted in the
+     * SENSOR_FLAG_BITS_* bitmask.
+     */
+    const int SENSOR_FLAG_SHIFT_REPORTING_MODE = 1;
+    const int SENSOR_FLAG_SHIFT_DATA_INJECTION = 4;
+    const int SENSOR_FLAG_SHIFT_DYNAMIC_SENSOR = 5;
+    const int SENSOR_FLAG_SHIFT_ADDITIONAL_INFO = 6;
+    const int SENSOR_FLAG_SHIFT_DIRECT_REPORT = 7;
+    const int SENSOR_FLAG_SHIFT_DIRECT_CHANNEL = 10;
+}
diff --git a/sensors/aidl/android/hardware/sensors/SensorStatus.aidl b/sensors/aidl/android/hardware/sensors/SensorStatus.aidl
new file mode 100644
index 0000000..0fd8697
--- /dev/null
+++ b/sensors/aidl/android/hardware/sensors/SensorStatus.aidl
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors;
+
+@VintfStability
+@Backing(type="byte")
+enum SensorStatus {
+    NO_CONTACT = -1,
+    UNRELIABLE = 0,
+    ACCURACY_LOW = 1,
+    ACCURACY_MEDIUM = 2,
+    ACCURACY_HIGH = 3,
+}
diff --git a/sensors/aidl/android/hardware/sensors/SensorType.aidl b/sensors/aidl/android/hardware/sensors/SensorType.aidl
new file mode 100644
index 0000000..95c7a6a
--- /dev/null
+++ b/sensors/aidl/android/hardware/sensors/SensorType.aidl
@@ -0,0 +1,641 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.sensors;
+
+@VintfStability
+@Backing(type="int")
+enum SensorType {
+    /**
+     * META_DATA is a special event type used to populate the MetaData
+     * structure. It doesn't correspond to a physical sensor. Events of this
+     * type exist only inside the HAL, their primary purpose is to signal the
+     * completion of a flush request.
+     */
+    META_DATA = 0,
+
+    /**
+     * ACCELEROMETER
+     * reporting-mode: continuous
+     *
+     * All values are in SI units (m/s^2) and measure the acceleration of the
+     * device minus the acceleration due to gravity.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    ACCELEROMETER = 1,
+
+    /**
+     * MAGNETIC_FIELD
+     * reporting-mode: continuous
+     *
+     * All values are in micro-Tesla (uT) and measure the geomagnetic
+     * field in the X, Y and Z axis.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    MAGNETIC_FIELD = 2,
+
+    /**
+     * ORIENTATION
+     * reporting-mode: continuous
+     *
+     * All values are angles in degrees.
+     *
+     * Orientation sensors return sensor events for all 3 axes at a constant
+     * rate defined by setDelay().
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    ORIENTATION = 3,
+
+    /**
+     * GYROSCOPE
+     * reporting-mode: continuous
+     *
+     * All values are in radians/second and measure the rate of rotation
+     * around the X, Y and Z axis.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    GYROSCOPE = 4,
+
+    /**
+     * LIGHT
+     * reporting-mode: on-change
+     *
+     * The light sensor value is returned in SI lux units.
+     *
+     * Both wake-up and non wake-up versions are useful.
+     */
+    LIGHT = 5,
+
+    /**
+     * PRESSURE
+     * reporting-mode: continuous
+     *
+     * The pressure sensor return the athmospheric pressure in hectopascal (hPa)
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    PRESSURE = 6,
+
+    /**
+     * PROXIMITY
+     * reporting-mode: on-change
+     *
+     * The proximity sensor which turns the screen off and back on during calls
+     * is the wake-up proximity sensor. Implement wake-up proximity sensor
+     * before implementing a non wake-up proximity sensor. For the wake-up
+     * proximity sensor set the flag SENSOR_FLAG_WAKE_UP.
+     * The value corresponds to the distance to the nearest object in
+     * centimeters.
+     */
+    PROXIMITY = 8,
+
+    /**
+     * GRAVITY
+     * reporting-mode: continuous
+     *
+     * A gravity output indicates the direction of and magnitude of gravity in
+     * the devices's coordinates.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    GRAVITY = 9,
+
+    /**
+     * LINEAR_ACCELERATION
+     * reporting-mode: continuous
+     *
+     * Indicates the linear acceleration of the device in device coordinates,
+     * not including gravity.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    LINEAR_ACCELERATION = 10,
+
+    /**
+     * ROTATION_VECTOR
+     * reporting-mode: continuous
+     *
+     * The rotation vector symbolizes the orientation of the device relative to
+     * the East-North-Up coordinates frame.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    ROTATION_VECTOR = 11,
+
+    /**
+     * RELATIVE_HUMIDITY
+     * reporting-mode: on-change
+     *
+     * A relative humidity sensor measures relative ambient air humidity and
+     * returns a value in percent.
+     *
+     * Both wake-up and non wake-up versions are useful.
+     */
+    RELATIVE_HUMIDITY = 12,
+
+    /**
+     * AMBIENT_TEMPERATURE
+     * reporting-mode: on-change
+     *
+     * The ambient (room) temperature in degree Celsius.
+     *
+     * Both wake-up and non wake-up versions are useful.
+     */
+    AMBIENT_TEMPERATURE = 13,
+
+    /**
+     * MAGNETIC_FIELD_UNCALIBRATED
+     * reporting-mode: continuous
+     *
+     * Similar to MAGNETIC_FIELD, but the hard iron calibration is
+     * reported separately instead of being included in the measurement.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    MAGNETIC_FIELD_UNCALIBRATED = 14,
+
+    /**
+     * GAME_ROTATION_VECTOR
+     * reporting-mode: continuous
+     *
+     * Similar to ROTATION_VECTOR, but not using the geomagnetic
+     * field.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    GAME_ROTATION_VECTOR = 15,
+
+    /**
+     * GYROSCOPE_UNCALIBRATED
+     * reporting-mode: continuous
+     *
+     * All values are in radians/second and measure the rate of rotation
+     * around the X, Y and Z axis.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    GYROSCOPE_UNCALIBRATED = 16,
+
+    /**
+     * SIGNIFICANT_MOTION
+     * reporting-mode: one-shot
+     *
+     * A sensor of this type triggers an event each time significant motion
+     * is detected and automatically disables itself.
+     * For Significant Motion sensor to be useful, it must be defined as a
+     * wake-up sensor. (set SENSOR_FLAG_WAKE_UP). Implement the wake-up
+     * significant motion sensor. A non wake-up version is not useful.
+     * The only allowed value to return is 1.0.
+     */
+    SIGNIFICANT_MOTION = 17,
+
+    /**
+     * STEP_DETECTOR
+     * reporting-mode: special
+     *
+     * A sensor of this type triggers an event each time a step is taken
+     * by the user. The only allowed value to return is 1.0 and an event
+     * is generated for each step.
+     *
+     * Both wake-up and non wake-up versions are useful.
+     */
+    STEP_DETECTOR = 18,
+
+    /**
+     * STEP_COUNTER
+     * reporting-mode: on-change
+     *
+     * A sensor of this type returns the number of steps taken by the user since
+     * the last reboot while activated. The value is returned as a uint64_t and
+     * is reset to zero only on a system / android reboot.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    STEP_COUNTER = 19,
+
+    /**
+     * GEOMAGNETIC_ROTATION_VECTOR
+     * reporting-mode: continuous
+     *
+     *  Similar to ROTATION_VECTOR, but using a magnetometer instead
+     *  of using a gyroscope.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    GEOMAGNETIC_ROTATION_VECTOR = 20,
+
+    /**
+     * HEART_RATE
+     * reporting-mode: on-change
+     *
+     *  A sensor of this type returns the current heart rate.
+     *  The events contain the current heart rate in beats per minute (BPM) and
+     *  the status of the sensor during the measurement. See "HeartRate" below
+     *  for more details.
+     *
+     *  Because this sensor is on-change, events must be generated when and only
+     *  when heart_rate.bpm or heart_rate.status have changed since the last
+     *  event. In particular, upon the first activation, unless the device is
+     *  known to not be on the body, the status field of the first event must be
+     *  set to SensorStatus::UNRELIABLE. The event should be generated no faster
+     *  than every period_ns passed to setDelay() or to batch().
+     *  See the definition of the on-change reporting mode for more information.
+     *
+     *  SensorInfo.requiredPermission must be set to
+     *  SENSOR_PERMISSION_BODY_SENSORS.
+     *
+     *  Both wake-up and non wake-up versions are useful.
+     */
+    HEART_RATE = 21,
+
+    /**
+     * WAKE_UP_TILT_DETECTOR
+     * reporting-mode: special (setDelay has no impact)
+     *
+     * A sensor of this type generates an event each time a tilt event is
+     * detected. A tilt event must be generated if the direction of the
+     * 2-seconds window average gravity changed by at least 35 degrees since the
+     * activation or the last trigger of the sensor.
+     *
+     *  reference_estimated_gravity = average of accelerometer measurements over
+     *  the first 1 second after activation or the estimated gravity at the last
+     *  trigger.
+     *
+     *  current_estimated_gravity = average of accelerometer measurements over
+     *  the last 2 seconds.
+     *
+     *  trigger when
+     *     angle(reference_estimated_gravity, current_estimated_gravity)
+     *       > 35 degrees
+     *
+     * Large accelerations without a change in phone orientation must not
+     * trigger a tilt event.
+     * For example, a sharp turn or strong acceleration while driving a car
+     * must not trigger a tilt event, even though the angle of the average
+     * acceleration might vary by more than 35 degrees.
+     *
+     * Typically, this sensor is implemented with the help of only an
+     * accelerometer. Other sensors can be used as well if they do not increase
+     * the power consumption significantly. This is a low power sensor that
+     * must allow the AP to go into suspend mode. Do not emulate this sensor
+     * in the HAL.
+     * Like other wake up sensors, the driver is expected to a hold a wake_lock
+     * with a timeout of 200 ms while reporting this event. The only allowed
+     * return value is 1.0.
+     *
+     * Implement only the wake-up version of this sensor.
+     */
+    TILT_DETECTOR = 22,
+
+    /**
+     * WAKE_GESTURE
+     * reporting-mode: one-shot
+     *
+     * A sensor enabling waking up the device based on a device specific motion.
+     *
+     * When this sensor triggers, the device behaves as if the power button was
+     * pressed, turning the screen on. This behavior (turning on the screen when
+     * this sensor triggers) might be deactivated by the user in the device
+     * settings. Changes in settings do not impact the behavior of the sensor:
+     * only whether the framework turns the screen on when it triggers.
+     *
+     * The actual gesture to be detected is not specified, and can be chosen by
+     * the manufacturer of the device.
+     * This sensor must be low power, as it is likely to be activated 24/7.
+     * The only allowed value to return is 1.0.
+     *
+     * Implement only the wake-up version of this sensor.
+     */
+    WAKE_GESTURE = 23,
+
+    /**
+     * GLANCE_GESTURE
+     * reporting-mode: one-shot
+     *
+     * A sensor enabling briefly turning the screen on to enable the user to
+     * glance content on screen based on a specific motion.  The device must
+     * turn the screen off after a few moments.
+     *
+     * When this sensor triggers, the device turns the screen on momentarily
+     * to allow the user to glance notifications or other content while the
+     * device remains locked in a non-interactive state (dozing). This behavior
+     * (briefly turning on the screen when this sensor triggers) might be
+     * deactivated by the user in the device settings.
+     * Changes in settings do not impact the behavior of the sensor: only
+     * whether the framework briefly turns the screen on when it triggers.
+     *
+     * The actual gesture to be detected is not specified, and can be chosen by
+     * the manufacturer of the device.
+     * This sensor must be low power, as it is likely to be activated 24/7.
+     * The only allowed value to return is 1.0.
+     *
+     * Implement only the wake-up version of this sensor.
+     */
+    GLANCE_GESTURE = 24,
+
+    /**
+     * PICK_UP_GESTURE
+     * reporting-mode: one-shot
+     *
+     * A sensor of this type triggers when the device is picked up regardless of
+     * wherever is was before (desk, pocket, bag). The only allowed return value
+     * is 1.0. This sensor de-activates itself immediately after it triggers.
+     *
+     * Implement only the wake-up version of this sensor.
+     */
+    PICK_UP_GESTURE = 25,
+
+    /**
+     * WRIST_TILT_GESTURE
+     * trigger-mode: special
+     * wake-up sensor: yes
+     *
+     * A sensor of this type triggers an event each time a tilt of the
+     * wrist-worn device is detected.
+     *
+     * This sensor must be low power, as it is likely to be activated 24/7.
+     * The only allowed value to return is 1.0.
+     *
+     * Implement only the wake-up version of this sensor.
+     */
+    WRIST_TILT_GESTURE = 26,
+
+    /**
+     * DEVICE_ORIENTATION
+     * reporting-mode: on-change
+     *
+     * The current orientation of the device. The value is reported in
+     * the "scalar" element of the EventPayload in Event. The
+     * only values that can be reported are (please refer to Android Sensor
+     * Coordinate System to understand the X and Y axis direction with respect
+     * to default orientation):
+     *  - 0: device is in default orientation (Y axis is vertical and points up)
+     *  - 1: device is rotated 90 degrees counter-clockwise from default
+     *       orientation (X axis is vertical and points up)
+     *  - 2: device is rotated 180 degrees from default orientation (Y axis is
+     *       vertical and points down)
+     *  - 3: device is rotated 90 degrees clockwise from default orientation
+     *       (X axis is vertical and points down)
+     *
+     * Moving the device to an orientation where the Z axis is vertical (either
+     * up or down) must not cause a new event to be reported.
+     *
+     * To improve the user experience of this sensor, it is recommended to
+     * implement some physical (i.e., rotation angle) and temporal (i.e., delay)
+     * hysteresis. In other words, minor or transient rotations must not cause
+     * a new event to be reported.
+     *
+     * This is a low power sensor that intended to reduce interrupts of
+     * application processor and thus allow it to go sleep. Use hardware
+     * implementation based on low power consumption sensors, such as
+     * accelerometer. Device must not emulate this sensor in the HAL.
+     *
+     * Both wake-up and non wake-up versions are useful.
+     */
+    DEVICE_ORIENTATION = 27,
+
+    /**
+     * POSE_6DOF
+     * trigger-mode: continuous
+     *
+     * A sensor of this type returns the pose of the device.
+     * Pose of the device is defined as the orientation of the device from a
+     * Earth Centered Earth Fixed frame and the translation from an arbitrary
+     * point at subscription.
+     *
+     * This sensor can be high power. It can use any and all of the following
+     *           . Accelerometer
+     *           . Gyroscope
+     *           . Camera
+     *           . Depth Camera
+     *
+     */
+    POSE_6DOF = 28,
+
+    /**
+     * STATIONARY_DETECT
+     * trigger mode: one shot
+     *
+     * A sensor of this type returns an event if the device is still/stationary
+     * for a while. The period of time to monitor for stationarity must be
+     * greater than 5 seconds. The latency must be less than 10 seconds.
+     *
+     * Stationarity here refers to absolute stationarity. eg: device on desk.
+     *
+     * The only allowed value to return is 1.0.
+     */
+    STATIONARY_DETECT = 29,
+
+    /**
+     * MOTION_DETECT
+     * trigger mode: one shot
+     *
+     * A sensor of this type returns an event if the device is not still for
+     * for a while. The period of time to monitor for stationarity must be
+     * greater than 5 seconds. The latency must be less than 10 seconds.
+     *
+     * Motion here refers to any mechanism in which the device is causes to be
+     * moved in its inertial frame. eg: Pickin up the device and walking with it
+     * to a nearby room may trigger motion wherewas keeping the device on a
+     * table on a smooth train moving at constant velocity may not trigger
+     * motion.
+     *
+     * The only allowed value to return is 1.0.
+     */
+    MOTION_DETECT = 30,
+
+    /**
+     * HEART_BEAT
+     * trigger mode: continuous
+     *
+     * A sensor of this type returns an event everytime a hear beat peak is
+     * detected.
+     *
+     * Peak here ideally corresponds to the positive peak in the QRS complex of
+     * and ECG signal.
+     *
+     * The sensor is not expected to be optimized for latency. As a guide, a
+     * latency of up to 10 seconds is acceptable. However, the timestamp attached
+     * to the event must be accuratly correspond to the time the peak occurred.
+     *
+     * The sensor event contains a parameter for the confidence in the detection
+     * of the peak where 0.0 represent no information at all, and 1.0 represents
+     * certainty.
+     */
+    HEART_BEAT = 31,
+
+    /**
+     * DYNAMIC_SENSOR_META
+     * trigger-mode: special
+     * wake-up sensor: yes
+     *
+     * A sensor event of this type is received when a dynamic sensor is added to
+     * or removed from the system. At most one sensor of this type can be
+     * present in one sensor HAL implementation and presence of a sensor of this
+     * type in sensor HAL implementation indicates that this sensor HAL supports
+     * dynamic sensor feature. Operations, such as batch, activate and setDelay,
+     * to this special purpose sensor must be treated as no-op and return
+     * successful; flush() also has to generate flush complete event as if this
+     * is a sensor that does not support batching.
+     *
+     * A dynamic sensor connection indicates connection of a physical device or
+     * instantiation of a virtual sensor backed by algorithm; and a dynamic
+     * sensor disconnection indicates the opposite. A sensor event of
+     * DYNAMIC_SENSOR_META type should be delivered regardless of
+     * the activation status of the sensor in the event of dynamic sensor
+     * connection and disconnection. In the sensor event, besides the common
+     * data entries, "dynamic_sensor_meta", which includes fields for connection
+     * status, handle of the sensor involved, pointer to sensor_t structure and
+     * a uuid field, must be populated.
+     *
+     * At a dynamic sensor connection event, fields of sensor_t structure
+     * referenced by a pointer in dynamic_sensor_meta must be filled as if it
+     * was regular sensors. Sensor HAL is responsible for recovery of memory if
+     * the corresponding data is dynamicially allocated. However, the
+     * pointer must be valid until the first activate call to the sensor
+     * reported in this connection event. At a dynamic sensor disconnection,
+     * the sensor_t pointer must be NULL.
+     *
+     * The sensor handle assigned to dynamic sensors must never be the same as
+     * that of any regular static sensors, and must be unique until next boot.
+     * In another word, if a handle h is used for a dynamic sensor A, that same
+     * number cannot be used for the same dynamic sensor A or another dynamic
+     * sensor B even after disconnection of A until reboot.
+     *
+     * The UUID field will be used for identifying the sensor in addition to
+     * name, vendor and version and type. For physical sensors of the same
+     * model, all sensors will have the same values in sensor_t, but the UUID
+     * must be unique and persistent for each individual unit. An all zero
+     * UUID indicates it is not possible to differentiate individual sensor
+     * unit.
+     *
+     */
+    DYNAMIC_SENSOR_META = 32,
+
+    /**
+     * ADDITIONAL_INFO
+     * reporting-mode: N/A
+     *
+     * This sensor type is for delivering additional sensor information aside
+     * from sensor event data.
+     * Additional information may include sensor front-end group delay, internal
+     * calibration parameters, noise level metrics, device internal temperature,
+     * etc.
+     *
+     * This type will never bind to a sensor. In other words, no sensor in the
+     * sensor list can have the type SENSOR_TYPE_ADDITIONAL_INFO. If a
+     * sensor HAL supports sensor additional information feature, it reports
+     * sensor_event_t with "sensor" field set to handle of the reporting sensor
+     * and "type" field set to ADDITIONAL_INFO. Delivery of
+     * additional information events is triggered under two conditions: an
+     * enable activate() call or a flush() call to the corresponding sensor.
+     * Besides, time varying parameters can update infrequently without being
+     * triggered. Device is responsible to control update rate. The recommend
+     * update rate is less than 1/1000 of sensor event rate or less than once
+     * per minute in average.
+     *
+     * A single additional information report consists of multiple frames.
+     * Sequences of these frames are ordered using timestamps, which means the
+     * timestamps of sequential frames have to be at least 1 nanosecond apart
+     * from each other. Each frame is a sensor_event_t delivered through the HAL
+     * interface, with related data stored in the "additional_info" field, which
+     * is of type additional_info_event_t.
+     * The "type" field of additional_info_event_t denotes the nature of the
+     * payload data (see additional_info_type_t).
+     * The "serial" field is used to keep the sequence of payload data that
+     * spans multiple frames. The first frame of the entire report is always of
+     * type AINFO_BEGIN, and the last frame is always AINFO_END.
+     *
+     * If flush() was triggering the report, all additional information frames
+     * must be delivered after flush complete event.
+     */
+    ADDITIONAL_INFO = 33,
+
+    /**
+     * LOW_LATENCY_OFFBODY_DETECT
+     * trigger-mode: on-change
+     * wake-up sensor: yes
+     *
+     * A sensor of this type is defined for devices that are supposed to be worn
+     * by the user in the normal use case (such as a watch, wristband, etc) and
+     * is not yet defined for other device.
+     *
+     * A sensor of this type triggers an event each time the wearable device
+     * is removed from the body and each time it's put back onto the body.
+     * It must be low-latency and be able to detect the on-body to off-body
+     * transition within one second (event delivery time included),
+     * and 3-second latency to determine the off-body to on-body transition
+     * (event delivery time included).
+     *
+     * There are only two valid event values for the sensor to return :
+     *    0.0 for off-body
+     *    1.0 for on-body
+     *
+     */
+    LOW_LATENCY_OFFBODY_DETECT = 34,
+
+    /**
+     * ACCELEROMETER_UNCALIBRATED
+     * reporting-mode: continuous
+     *
+     * All values are in SI units (m/s^2) and measure the acceleration of the
+     * device minus the acceleration due to gravity.
+     *
+     * Implement the non-wake-up version of this sensor and implement the
+     * wake-up version if the system possesses a wake up fifo.
+     */
+    ACCELEROMETER_UNCALIBRATED = 35,
+
+    /**
+     * HINGE_ANGLE
+     * reporting-mode: on-change
+     * wake-up sensor: yes
+     *
+     * A sensor of this type measures the angle, in degrees, between two
+     * integral parts of the device. Movement of a hinge measured by this sensor
+     * type is expected to alter the ways in which the user may interact with
+     * the device, for example by unfolding or revealing a display.
+     *
+     * Sensor data is output using EventPayload.scalar.
+     *
+     * Implement wake-up proximity sensor before implementing a non wake-up
+     * proximity sensor.
+     */
+    HINGE_ANGLE = 36,
+
+    /**
+     * Base for device manufacturers private sensor types.
+     * These sensor types can't be exposed in the SDK.
+     */
+    DEVICE_PRIVATE_BASE = 0x10000,
+}
diff --git a/sensors/aidl/default/Android.bp b/sensors/aidl/default/Android.bp
new file mode 100644
index 0000000..487387d
--- /dev/null
+++ b/sensors/aidl/default/Android.bp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+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"],
+}
+
+cc_library_static {
+    name: "libsensorsexampleimpl",
+    vendor: true,
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "android.hardware.sensors-V1-ndk",
+    ],
+    export_include_dirs: ["include"],
+    srcs: [
+        "Sensors.cpp",
+    ],
+    visibility: [
+        ":__subpackages__",
+        "//hardware/interfaces/tests/extension/sensors:__subpackages__",
+    ],
+}
+
+cc_binary {
+    name: "android.hardware.sensors-service.example",
+    relative_install_path: "hw",
+    init_rc: ["sensors-default.rc"],
+    vintf_fragments: ["sensors-default.xml"],
+    vendor: true,
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "android.hardware.sensors-V1-ndk",
+    ],
+    static_libs: [
+        "libsensorsexampleimpl",
+    ],
+    srcs: ["main.cpp"],
+}
diff --git a/sensors/aidl/default/Sensors.cpp b/sensors/aidl/default/Sensors.cpp
new file mode 100644
index 0000000..14bbbbf
--- /dev/null
+++ b/sensors/aidl/default/Sensors.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "sensors-impl/Sensors.h"
+
+using ::aidl::android::hardware::common::fmq::MQDescriptor;
+using ::aidl::android::hardware::common::fmq::SynchronizedReadWrite;
+using ::aidl::android::hardware::sensors::Event;
+using ::aidl::android::hardware::sensors::ISensors;
+using ::aidl::android::hardware::sensors::ISensorsCallback;
+using ::aidl::android::hardware::sensors::SensorInfo;
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace sensors {
+
+// TODO(b/195593357): Implement AIDL HAL
+::ndk::ScopedAStatus Sensors::activate(int32_t /* in_sensorHandle */, bool /* in_enabled */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::batch(int32_t /* in_sensorHandle */,
+                                    int64_t /* in_samplingPeriodNs */,
+                                    int64_t /* in_maxReportLatencyNs */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::configDirectReport(int32_t /* in_sensorHandle */,
+                                                 int32_t /* in_channelHandle */,
+                                                 ISensors::RateLevel /* in_rate */,
+                                                 int32_t* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::flush(int32_t /* in_sensorHandle */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::getSensorsList(std::vector<SensorInfo>* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::initialize(
+        const MQDescriptor<Event, SynchronizedReadWrite>& /* in_eventQueueDescriptor */,
+        const MQDescriptor<int32_t, SynchronizedReadWrite>& /* in_wakeLockDescriptor */,
+        const std::shared_ptr<ISensorsCallback>& /* in_sensorsCallback */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::injectSensorData(const Event& /* in_event */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::registerDirectChannel(const ISensors::SharedMemInfo& /* in_mem */,
+                                                    int32_t* /* _aidl_return */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::setOperationMode(OperationMode /* in_mode */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus Sensors::unregisterDirectChannel(int32_t /* in_channelHandle */) {
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl
diff --git a/sensors/aidl/default/include/sensors-impl/Sensors.h b/sensors/aidl/default/include/sensors-impl/Sensors.h
new file mode 100644
index 0000000..b6be4a5
--- /dev/null
+++ b/sensors/aidl/default/include/sensors-impl/Sensors.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/sensors/BnSensors.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace sensors {
+
+class Sensors : public BnSensors {
+    ::ndk::ScopedAStatus activate(int32_t in_sensorHandle, bool in_enabled) override;
+    ::ndk::ScopedAStatus batch(int32_t in_sensorHandle, int64_t in_samplingPeriodNs,
+                               int64_t in_maxReportLatencyNs) override;
+    ::ndk::ScopedAStatus configDirectReport(
+            int32_t in_sensorHandle, int32_t in_channelHandle,
+            ::aidl::android::hardware::sensors::ISensors::RateLevel in_rate,
+            int32_t* _aidl_return) override;
+    ::ndk::ScopedAStatus flush(int32_t in_sensorHandle) override;
+    ::ndk::ScopedAStatus getSensorsList(
+            std::vector<::aidl::android::hardware::sensors::SensorInfo>* _aidl_return) override;
+    ::ndk::ScopedAStatus initialize(
+            const ::aidl::android::hardware::common::fmq::MQDescriptor<
+                    ::aidl::android::hardware::sensors::Event,
+                    ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>&
+                    in_eventQueueDescriptor,
+            const ::aidl::android::hardware::common::fmq::MQDescriptor<
+                    int32_t, ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>&
+                    in_wakeLockDescriptor,
+            const std::shared_ptr<::aidl::android::hardware::sensors::ISensorsCallback>&
+                    in_sensorsCallback) override;
+    ::ndk::ScopedAStatus injectSensorData(
+            const ::aidl::android::hardware::sensors::Event& in_event) override;
+    ::ndk::ScopedAStatus registerDirectChannel(
+            const ::aidl::android::hardware::sensors::ISensors::SharedMemInfo& in_mem,
+            int32_t* _aidl_return) override;
+    ::ndk::ScopedAStatus setOperationMode(
+            ::aidl::android::hardware::sensors::ISensors::OperationMode in_mode) override;
+    ::ndk::ScopedAStatus unregisterDirectChannel(int32_t in_channelHandle) override;
+};
+
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl
diff --git a/sensors/aidl/default/main.cpp b/sensors/aidl/default/main.cpp
new file mode 100644
index 0000000..8a5a7de
--- /dev/null
+++ b/sensors/aidl/default/main.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "sensors-impl/Sensors.h"
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+
+using aidl::android::hardware::sensors::Sensors;
+
+int main() {
+    ABinderProcess_setThreadPoolMaxThreadCount(0);
+
+    // Make a default sensors service
+    auto sensor = ndk::SharedRefBase::make<Sensors>();
+    const std::string sensorName = std::string() + Sensors::descriptor + "/default";
+    binder_status_t status =
+            AServiceManager_addService(sensor->asBinder().get(), sensorName.c_str());
+    CHECK_EQ(status, STATUS_OK);
+
+    ABinderProcess_joinThreadPool();
+    return EXIT_FAILURE;  // should not reach
+}
diff --git a/sensors/aidl/default/sensors-default.rc b/sensors/aidl/default/sensors-default.rc
new file mode 100644
index 0000000..96da85d
--- /dev/null
+++ b/sensors/aidl/default/sensors-default.rc
@@ -0,0 +1,5 @@
+service vendor.sensors-default /vendor/bin/hw/android.hardware.sensors-service.example
+    class hal
+    user system
+    group system
+    rlimit rtprio 10 10
diff --git a/sensors/aidl/default/sensors-default.xml b/sensors/aidl/default/sensors-default.xml
new file mode 100644
index 0000000..7898a6b
--- /dev/null
+++ b/sensors/aidl/default/sensors-default.xml
@@ -0,0 +1,7 @@
+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.sensors</name>
+        <version>1</version>
+        <fqname>ISensors/default</fqname>
+    </hal>
+</manifest>
diff --git a/sensors/aidl/vts/Android.bp b/sensors/aidl/vts/Android.bp
new file mode 100644
index 0000000..5a519a5
--- /dev/null
+++ b/sensors/aidl/vts/Android.bp
@@ -0,0 +1,49 @@
+// Copyright 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+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"],
+}
+
+cc_test {
+    name: "VtsAidlHalSensorsTargetTest",
+    defaults: [
+        "VtsHalTargetTestDefaults",
+        "use_libaidlvintf_gtest_helper_static",
+    ],
+    srcs: [
+        "VtsAidlHalSensorsTargetTest.cpp",
+        "SensorsAidlEnvironment.cpp",
+    ],
+    shared_libs: [
+        "libbinder",
+        "libbinder_ndk",
+        "libfmq",
+        "android.hardware.common-V2-ndk",
+        "android.hardware.common.fmq-V1-ndk",
+    ],
+    static_libs: [
+        "android.hardware.sensors-V1-ndk",
+        "VtsHalSensorsTargetTestUtils",
+    ],
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
+}
diff --git a/sensors/aidl/vts/OWNERS b/sensors/aidl/vts/OWNERS
new file mode 100644
index 0000000..90c2330
--- /dev/null
+++ b/sensors/aidl/vts/OWNERS
@@ -0,0 +1,3 @@
+arthuri@google.com
+bduddie@google.com
+stange@google.com
diff --git a/sensors/aidl/vts/SensorsAidlEnvironment.cpp b/sensors/aidl/vts/SensorsAidlEnvironment.cpp
new file mode 100644
index 0000000..e71251f
--- /dev/null
+++ b/sensors/aidl/vts/SensorsAidlEnvironment.cpp
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SensorsAidlEnvironment.h"
+
+#include <android/binder_manager.h>
+#include <log/log.h>
+
+#include <aidl/android/hardware/sensors/BnSensorsCallback.h>
+
+using aidl::android::hardware::sensors::BnSensorsCallback;
+using aidl::android::hardware::sensors::SensorInfo;
+using android::hardware::EventFlag;
+using ndk::ScopedAStatus;
+using ndk::SpAIBinder;
+
+namespace {
+
+void serviceDied(void* /* cookie */) {
+    ALOGE("Sensors HAL died (likely crashed) during test");
+    FAIL() << "Sensors HAL died during test";
+}
+
+class NoOpSensorsCallback : public BnSensorsCallback {
+  public:
+    ScopedAStatus onDynamicSensorsConnected(
+            const std::vector<SensorInfo>& /* sensorInfos */) override {
+        return ScopedAStatus::ok();
+    }
+
+    ScopedAStatus onDynamicSensorsDisconnected(
+            const std::vector<int32_t>& /* sensorHandles */) override {
+        return ScopedAStatus::ok();
+    }
+};
+
+}  // anonymous namespace
+
+SensorsAidlEnvironment::SensorsAidlEnvironment(const std::string& service_name)
+    : SensorsVtsEnvironmentBase(service_name),
+      mCallback(ndk::SharedRefBase::make<NoOpSensorsCallback>()),
+      mDeathRecipient(AIBinder_DeathRecipient_new(serviceDied)) {}
+
+bool SensorsAidlEnvironment::resetHal() {
+    bool succeed = false;
+    do {
+        mSensors = ISensors::fromBinder(
+                SpAIBinder(AServiceManager_waitForService(mServiceName.c_str())));
+        if (mSensors == nullptr) {
+            break;
+        }
+
+        AIBinder_linkToDeath(mSensors->asBinder().get(), mDeathRecipient.get(), this);
+
+        // Initialize FMQs
+        mWakeLockQueue = std::make_unique<WakeLockQueue>(MAX_RECEIVE_BUFFER_EVENT_COUNT,
+                                                         true /* configureEventFlagWord */);
+        mEventQueue = std::make_unique<EventQueue>(MAX_RECEIVE_BUFFER_EVENT_COUNT,
+                                                   true /* configureEventFlagWord */);
+
+        if (mWakeLockQueue == nullptr || mEventQueue == nullptr) {
+            break;
+        }
+
+        EventFlag::deleteEventFlag(&mEventQueueFlag);
+        EventFlag::createEventFlag(mEventQueue->getEventFlagWord(), &mEventQueueFlag);
+        if (mEventQueueFlag == nullptr) {
+            break;
+        }
+
+        mSensors->initialize(mEventQueue->dupeDesc(), mWakeLockQueue->dupeDesc(), mCallback);
+
+        std::vector<SensorInfo> sensorList;
+        if (!mSensors->getSensorsList(&sensorList).isOk()) {
+            break;
+        }
+
+        // stop each sensor individually
+        bool ok = true;
+        for (const auto& i : sensorList) {
+            if (!mSensors->activate(i.sensorHandle, false).isOk()) {
+                ok = false;
+                break;
+            }
+        }
+
+        if (!ok) {
+            break;
+        }
+
+        // mark it done
+        succeed = true;
+    } while (0);
+
+    if (!succeed) {
+        mSensors = nullptr;
+    }
+
+    return succeed;
+}
+
+void SensorsAidlEnvironment::TearDown() {
+    mStopThread = true;
+
+    if (mEventQueueFlag != nullptr) {
+        // Wake up the event queue so the poll thread can exit
+        mEventQueueFlag->wake(ISensors::EVENT_QUEUE_FLAG_BITS_READ_AND_PROCESS);
+        if (mPollThread.joinable()) {
+            mPollThread.join();
+        }
+
+        EventFlag::deleteEventFlag(&mEventQueueFlag);
+    }
+}
+
+void SensorsAidlEnvironment::startPollingThread() {
+    mStopThread = false;
+    mEvents.reserve(MAX_RECEIVE_BUFFER_EVENT_COUNT);
+    mPollThread = std::thread(pollingThread, this);
+}
+
+void SensorsAidlEnvironment::readEvents() {
+    size_t availableEvents = mEventQueue->availableToRead();
+
+    if (availableEvents == 0) {
+        uint32_t eventFlagState = 0;
+
+        mEventQueueFlag->wait(ISensors::EVENT_QUEUE_FLAG_BITS_READ_AND_PROCESS, &eventFlagState);
+        availableEvents = mEventQueue->availableToRead();
+    }
+
+    size_t eventsToRead = std::min(availableEvents, mEventBuffer.size());
+    if (eventsToRead > 0) {
+        if (mEventQueue->read(mEventBuffer.data(), eventsToRead)) {
+            mEventQueueFlag->wake(ISensors::EVENT_QUEUE_FLAG_BITS_EVENTS_READ);
+            for (size_t i = 0; i < eventsToRead; i++) {
+                addEvent(mEventBuffer[i]);
+            }
+        }
+    }
+}
+
+void SensorsAidlEnvironment::pollingThread(SensorsAidlEnvironment* env) {
+    ALOGD("polling thread start");
+
+    while (!env->mStopThread.load()) {
+        env->readEvents();
+    }
+
+    ALOGD("polling thread end");
+}
diff --git a/sensors/aidl/vts/SensorsAidlEnvironment.h b/sensors/aidl/vts/SensorsAidlEnvironment.h
new file mode 100644
index 0000000..2f5f287
--- /dev/null
+++ b/sensors/aidl/vts/SensorsAidlEnvironment.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SENSORS_AIDL_ENVIRONMENT_H
+#define ANDROID_SENSORS_AIDL_ENVIRONMENT_H
+
+#include "sensors-vts-utils/SensorsVtsEnvironmentBase.h"
+
+#include <atomic>
+#include <memory>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+#include <aidl/android/hardware/sensors/ISensors.h>
+#include <fmq/AidlMessageQueue.h>
+
+using aidl::android::hardware::common::fmq::SynchronizedReadWrite;
+using aidl::android::hardware::sensors::Event;
+using aidl::android::hardware::sensors::ISensors;
+using aidl::android::hardware::sensors::ISensorsCallback;
+
+static constexpr size_t MAX_RECEIVE_BUFFER_EVENT_COUNT = 256;
+
+class SensorsAidlTest;
+
+class SensorsAidlEnvironment : public SensorsVtsEnvironmentBase<Event> {
+  public:
+    virtual void TearDown() override;
+
+  protected:
+    friend SensorsAidlTest;
+    SensorsAidlEnvironment(const std::string& service_name);
+
+    /**
+     * Resets the HAL with new FMQs and a new Event Flag
+     *
+     * @return bool true if successful, false otherwise
+     */
+    bool resetHal() override;
+
+    /**
+     * Starts the polling thread that reads sensor events from the Event FMQ
+     */
+    void startPollingThread() override;
+
+    /**
+     * Thread responsible for calling functions to read Event FMQ
+     *
+     * @param env SensorEnvironment to being polling for events on
+     */
+    static void pollingThread(SensorsAidlEnvironment* env);
+
+    /**
+     * Reads and saves sensor events from the Event FMQ
+     */
+    void readEvents();
+
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(SensorsAidlEnvironment);
+
+    /**
+     * Pointer to the Sensors HAL Interface that allows the test to call HAL functions.
+     */
+    std::shared_ptr<ISensors> mSensors;
+    std::shared_ptr<ISensorsCallback> mCallback;
+
+    ndk::ScopedAIBinder_DeathRecipient mDeathRecipient;
+
+    /**
+     * Type used to simplify the creation of the Wake Lock FMQ
+     */
+    typedef android::AidlMessageQueue<int32_t, SynchronizedReadWrite> WakeLockQueue;
+    typedef android::AidlMessageQueue<Event, SynchronizedReadWrite> EventQueue;
+
+    /**
+     * The Wake Lock FMQ is used by the test to notify the Sensors HAL whenever it has processed
+     * WAKE_UP sensor events.
+     */
+    std::unique_ptr<WakeLockQueue> mWakeLockQueue;
+    std::unique_ptr<EventQueue> mEventQueue;
+
+    /**
+     * The Event Queue Flag notifies the test framework when sensor events have been written to the
+     * Event FMQ by the Sensors HAL.
+     */
+    ::android::hardware::EventFlag* mEventQueueFlag;
+
+    std::atomic_bool mStopThread;
+    std::thread mPollThread;
+
+    /**
+     * An array that is used to store sensor events read from the Event FMQ
+     */
+    std::array<Event, MAX_RECEIVE_BUFFER_EVENT_COUNT> mEventBuffer;
+};
+
+#endif  // ANDROID_SENSORS_AIDL_ENVIRONMENT_H
diff --git a/sensors/aidl/vts/VtsAidlHalSensorsTargetTest.cpp b/sensors/aidl/vts/VtsAidlHalSensorsTargetTest.cpp
new file mode 100644
index 0000000..33645b2
--- /dev/null
+++ b/sensors/aidl/vts/VtsAidlHalSensorsTargetTest.cpp
@@ -0,0 +1,871 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <aidl/Gtest.h>
+#include <aidl/Vintf.h>
+
+#include <aidl/android/hardware/sensors/BnSensors.h>
+#include <aidl/android/hardware/sensors/ISensors.h>
+#include <android/binder_manager.h>
+#include <binder/IServiceManager.h>
+#include <binder/ProcessState.h>
+#include <hardware/sensors.h>
+#include <log/log.h>
+#include <utils/SystemClock.h>
+
+#include "SensorsAidlEnvironment.h"
+#include "sensors-vts-utils/SensorsVtsEnvironmentBase.h"
+
+#include <cinttypes>
+#include <condition_variable>
+#include <map>
+#include <unordered_map>
+#include <unordered_set>
+#include <vector>
+
+using aidl::android::hardware::sensors::Event;
+using aidl::android::hardware::sensors::ISensors;
+using aidl::android::hardware::sensors::SensorInfo;
+using aidl::android::hardware::sensors::SensorStatus;
+using aidl::android::hardware::sensors::SensorType;
+using android::ProcessState;
+using std::chrono::duration_cast;
+
+namespace {
+
+static void assertTypeMatchStringType(SensorType type, const std::string& stringType) {
+    if (type >= SensorType::DEVICE_PRIVATE_BASE) {
+        return;
+    }
+
+    switch (type) {
+#define CHECK_TYPE_STRING_FOR_SENSOR_TYPE(type)                      \
+    case SensorType::type:                                           \
+        ASSERT_STREQ(SENSOR_STRING_TYPE_##type, stringType.c_str()); \
+        break;
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ACCELEROMETER);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ACCELEROMETER_UNCALIBRATED);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ADDITIONAL_INFO);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(AMBIENT_TEMPERATURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(DEVICE_ORIENTATION);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(DYNAMIC_SENSOR_META);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GAME_ROTATION_VECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GEOMAGNETIC_ROTATION_VECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GLANCE_GESTURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GRAVITY);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GYROSCOPE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(GYROSCOPE_UNCALIBRATED);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(HEART_BEAT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(HEART_RATE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LIGHT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LINEAR_ACCELERATION);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(LOW_LATENCY_OFFBODY_DETECT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MAGNETIC_FIELD);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MAGNETIC_FIELD_UNCALIBRATED);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(MOTION_DETECT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ORIENTATION);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PICK_UP_GESTURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(POSE_6DOF);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PRESSURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(PROXIMITY);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(RELATIVE_HUMIDITY);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(ROTATION_VECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(SIGNIFICANT_MOTION);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STATIONARY_DETECT);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STEP_COUNTER);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(STEP_DETECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(TILT_DETECTOR);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(WAKE_GESTURE);
+        CHECK_TYPE_STRING_FOR_SENSOR_TYPE(WRIST_TILT_GESTURE);
+        default:
+            FAIL() << "Type " << static_cast<int>(type)
+                   << " in android defined range is not checked, "
+                   << "stringType = " << stringType;
+#undef CHECK_TYPE_STRING_FOR_SENSOR_TYPE
+    }
+}
+
+int expectedReportModeForType(SensorType type) {
+    switch (type) {
+        case SensorType::ACCELEROMETER:
+        case SensorType::ACCELEROMETER_UNCALIBRATED:
+        case SensorType::GYROSCOPE:
+        case SensorType::MAGNETIC_FIELD:
+        case SensorType::ORIENTATION:
+        case SensorType::PRESSURE:
+        case SensorType::GRAVITY:
+        case SensorType::LINEAR_ACCELERATION:
+        case SensorType::ROTATION_VECTOR:
+        case SensorType::MAGNETIC_FIELD_UNCALIBRATED:
+        case SensorType::GAME_ROTATION_VECTOR:
+        case SensorType::GYROSCOPE_UNCALIBRATED:
+        case SensorType::GEOMAGNETIC_ROTATION_VECTOR:
+        case SensorType::POSE_6DOF:
+        case SensorType::HEART_BEAT:
+            return SensorInfo::SENSOR_FLAG_BITS_CONTINUOUS_MODE;
+
+        case SensorType::LIGHT:
+        case SensorType::PROXIMITY:
+        case SensorType::RELATIVE_HUMIDITY:
+        case SensorType::AMBIENT_TEMPERATURE:
+        case SensorType::HEART_RATE:
+        case SensorType::DEVICE_ORIENTATION:
+        case SensorType::STEP_COUNTER:
+        case SensorType::LOW_LATENCY_OFFBODY_DETECT:
+            return SensorInfo::SENSOR_FLAG_BITS_ON_CHANGE_MODE;
+
+        case SensorType::SIGNIFICANT_MOTION:
+        case SensorType::WAKE_GESTURE:
+        case SensorType::GLANCE_GESTURE:
+        case SensorType::PICK_UP_GESTURE:
+        case SensorType::MOTION_DETECT:
+        case SensorType::STATIONARY_DETECT:
+            return SensorInfo::SENSOR_FLAG_BITS_ONE_SHOT_MODE;
+
+        case SensorType::STEP_DETECTOR:
+        case SensorType::TILT_DETECTOR:
+        case SensorType::WRIST_TILT_GESTURE:
+        case SensorType::DYNAMIC_SENSOR_META:
+            return SensorInfo::SENSOR_FLAG_BITS_SPECIAL_REPORTING_MODE;
+
+        default:
+            ALOGW("Type %d is not implemented in expectedReportModeForType", (int)type);
+            return INT32_MAX;
+    }
+}
+
+void assertTypeMatchReportMode(SensorType type, int reportMode) {
+    if (type >= SensorType::DEVICE_PRIVATE_BASE) {
+        return;
+    }
+
+    int expected = expectedReportModeForType(type);
+
+    ASSERT_TRUE(expected == INT32_MAX || expected == reportMode)
+            << "reportMode=" << static_cast<int>(reportMode)
+            << "expected=" << static_cast<int>(expected);
+}
+
+void assertDelayMatchReportMode(int32_t minDelayUs, int32_t maxDelayUs, int reportMode) {
+    switch (reportMode) {
+        case SensorInfo::SENSOR_FLAG_BITS_CONTINUOUS_MODE:
+            ASSERT_LT(0, minDelayUs);
+            ASSERT_LE(0, maxDelayUs);
+            break;
+        case SensorInfo::SENSOR_FLAG_BITS_ON_CHANGE_MODE:
+            ASSERT_LE(0, minDelayUs);
+            ASSERT_LE(0, maxDelayUs);
+            break;
+        case SensorInfo::SENSOR_FLAG_BITS_ONE_SHOT_MODE:
+            ASSERT_EQ(-1, minDelayUs);
+            ASSERT_EQ(0, maxDelayUs);
+            break;
+        case SensorInfo::SENSOR_FLAG_BITS_SPECIAL_REPORTING_MODE:
+            // do not enforce anything for special reporting mode
+            break;
+        default:
+            FAIL() << "Report mode " << static_cast<int>(reportMode) << " not checked";
+    }
+}
+
+void checkIsOk(ndk::ScopedAStatus status) {
+    ASSERT_TRUE(status.isOk());
+}
+
+}  // namespace
+
+class EventCallback : public IEventCallback<Event> {
+  public:
+    void reset() {
+        mFlushMap.clear();
+        mEventMap.clear();
+    }
+
+    void onEvent(const Event& event) override {
+        if (event.sensorType == SensorType::META_DATA &&
+            event.payload.get<Event::EventPayload::Tag::meta>().what ==
+                    Event::EventPayload::MetaData::MetaDataEventType::META_DATA_FLUSH_COMPLETE) {
+            std::unique_lock<std::recursive_mutex> lock(mFlushMutex);
+            mFlushMap[event.sensorHandle]++;
+            mFlushCV.notify_all();
+        } else if (event.sensorType != SensorType::ADDITIONAL_INFO) {
+            std::unique_lock<std::recursive_mutex> lock(mEventMutex);
+            mEventMap[event.sensorHandle].push_back(event);
+            mEventCV.notify_all();
+        }
+    }
+
+    int32_t getFlushCount(int32_t sensorHandle) {
+        std::unique_lock<std::recursive_mutex> lock(mFlushMutex);
+        return mFlushMap[sensorHandle];
+    }
+
+    void waitForFlushEvents(const std::vector<SensorInfo>& sensorsToWaitFor,
+                            int32_t numCallsToFlush, std::chrono::milliseconds timeout) {
+        std::unique_lock<std::recursive_mutex> lock(mFlushMutex);
+        mFlushCV.wait_for(lock, timeout,
+                          [&] { return flushesReceived(sensorsToWaitFor, numCallsToFlush); });
+    }
+
+    const std::vector<Event> getEvents(int32_t sensorHandle) {
+        std::unique_lock<std::recursive_mutex> lock(mEventMutex);
+        return mEventMap[sensorHandle];
+    }
+
+    void waitForEvents(const std::vector<SensorInfo>& sensorsToWaitFor,
+                       std::chrono::milliseconds timeout) {
+        std::unique_lock<std::recursive_mutex> lock(mEventMutex);
+        mEventCV.wait_for(lock, timeout, [&] { return eventsReceived(sensorsToWaitFor); });
+    }
+
+  protected:
+    bool flushesReceived(const std::vector<SensorInfo>& sensorsToWaitFor, int32_t numCallsToFlush) {
+        for (const SensorInfo& sensor : sensorsToWaitFor) {
+            if (getFlushCount(sensor.sensorHandle) < numCallsToFlush) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    bool eventsReceived(const std::vector<SensorInfo>& sensorsToWaitFor) {
+        for (const SensorInfo& sensor : sensorsToWaitFor) {
+            if (getEvents(sensor.sensorHandle).size() == 0) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    std::map<int32_t, int32_t> mFlushMap;
+    std::recursive_mutex mFlushMutex;
+    std::condition_variable_any mFlushCV;
+
+    std::map<int32_t, std::vector<Event>> mEventMap;
+    std::recursive_mutex mEventMutex;
+    std::condition_variable_any mEventCV;
+};
+
+class SensorsAidlTest : public testing::TestWithParam<std::string> {
+  public:
+    virtual void SetUp() override {
+        mEnvironment = new SensorsAidlEnvironment(GetParam());
+        mEnvironment->SetUp();
+
+        // Ensure that we have a valid environment before performing tests
+        ASSERT_NE(getSensors(), nullptr);
+    }
+
+    virtual void TearDown() override {
+        for (int32_t handle : mSensorHandles) {
+            activate(handle, false);
+        }
+        mSensorHandles.clear();
+
+        mEnvironment->TearDown();
+        delete mEnvironment;
+        mEnvironment = nullptr;
+    }
+
+  protected:
+    std::vector<SensorInfo> getNonOneShotSensors();
+    std::vector<SensorInfo> getNonOneShotAndNonSpecialSensors();
+    std::vector<SensorInfo> getNonOneShotAndNonOnChangeAndNonSpecialSensors();
+    std::vector<SensorInfo> getOneShotSensors();
+    std::vector<SensorInfo> getInjectEventSensors();
+
+    inline std::shared_ptr<ISensors>& getSensors() { return mEnvironment->mSensors; }
+
+    inline SensorsAidlEnvironment* getEnvironment() { return mEnvironment; }
+
+    inline bool isValidType(SensorType sensorType) { return (int)sensorType > 0; }
+
+    std::vector<SensorInfo> getSensorsList();
+
+    int32_t getInvalidSensorHandle() {
+        // Find a sensor handle that does not exist in the sensor list
+        int32_t maxHandle = 0;
+        for (const SensorInfo& sensor : getSensorsList()) {
+            maxHandle = std::max(maxHandle, sensor.sensorHandle);
+        }
+        return maxHandle + 1;
+    }
+
+    ndk::ScopedAStatus activate(int32_t sensorHandle, bool enable);
+    void activateAllSensors(bool enable);
+
+    ndk::ScopedAStatus batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+                             int64_t maxReportLatencyNs) {
+        return getSensors()->batch(sensorHandle, samplingPeriodNs, maxReportLatencyNs);
+    }
+
+    ndk::ScopedAStatus flush(int32_t sensorHandle) { return getSensors()->flush(sensorHandle); }
+
+    void runSingleFlushTest(const std::vector<SensorInfo>& sensors, bool activateSensor,
+                            int32_t expectedFlushCount, bool expectedResult);
+
+    void runFlushTest(const std::vector<SensorInfo>& sensors, bool activateSensor,
+                      int32_t flushCalls, int32_t expectedFlushCount, bool expectedResult);
+
+    inline static int32_t extractReportMode(int32_t flag) {
+        return (flag & (SensorInfo::SENSOR_FLAG_BITS_CONTINUOUS_MODE |
+                        SensorInfo::SENSOR_FLAG_BITS_ON_CHANGE_MODE |
+                        SensorInfo::SENSOR_FLAG_BITS_ONE_SHOT_MODE |
+                        SensorInfo::SENSOR_FLAG_BITS_SPECIAL_REPORTING_MODE));
+    }
+
+    // All sensors and direct channnels used
+    std::unordered_set<int32_t> mSensorHandles;
+    std::unordered_set<int32_t> mDirectChannelHandles;
+
+  private:
+    SensorsAidlEnvironment* mEnvironment;
+};
+
+std::vector<SensorInfo> SensorsAidlTest::getSensorsList() {
+    std::vector<SensorInfo> sensorInfoList;
+    checkIsOk(getSensors()->getSensorsList(&sensorInfoList));
+    return sensorInfoList;
+}
+
+ndk::ScopedAStatus SensorsAidlTest::activate(int32_t sensorHandle, bool enable) {
+    // If activating a sensor, add the handle in a set so that when test fails it can be turned off.
+    // The handle is not removed when it is deactivating on purpose so that it is not necessary to
+    // check the return value of deactivation. Deactivating a sensor more than once does not have
+    // negative effect.
+    if (enable) {
+        mSensorHandles.insert(sensorHandle);
+    }
+    return getSensors()->activate(sensorHandle, enable);
+}
+
+void SensorsAidlTest::activateAllSensors(bool enable) {
+    for (const SensorInfo& sensorInfo : getSensorsList()) {
+        if (isValidType(sensorInfo.type)) {
+            checkIsOk(batch(sensorInfo.sensorHandle, sensorInfo.minDelayUs,
+                            0 /* maxReportLatencyNs */));
+            checkIsOk(activate(sensorInfo.sensorHandle, enable));
+        }
+    }
+}
+
+std::vector<SensorInfo> SensorsAidlTest::getNonOneShotSensors() {
+    std::vector<SensorInfo> sensors;
+    for (const SensorInfo& info : getSensorsList()) {
+        if (extractReportMode(info.flags) != SensorInfo::SENSOR_FLAG_BITS_ONE_SHOT_MODE) {
+            sensors.push_back(info);
+        }
+    }
+    return sensors;
+}
+
+std::vector<SensorInfo> SensorsAidlTest::getNonOneShotAndNonSpecialSensors() {
+    std::vector<SensorInfo> sensors;
+    for (const SensorInfo& info : getSensorsList()) {
+        int reportMode = extractReportMode(info.flags);
+        if (reportMode != SensorInfo::SENSOR_FLAG_BITS_ONE_SHOT_MODE &&
+            reportMode != SensorInfo::SENSOR_FLAG_BITS_SPECIAL_REPORTING_MODE) {
+            sensors.push_back(info);
+        }
+    }
+    return sensors;
+}
+
+std::vector<SensorInfo> SensorsAidlTest::getNonOneShotAndNonOnChangeAndNonSpecialSensors() {
+    std::vector<SensorInfo> sensors;
+    for (const SensorInfo& info : getSensorsList()) {
+        int reportMode = extractReportMode(info.flags);
+        if (reportMode != SensorInfo::SENSOR_FLAG_BITS_ONE_SHOT_MODE &&
+            reportMode != SensorInfo::SENSOR_FLAG_BITS_ON_CHANGE_MODE &&
+            reportMode != SensorInfo::SENSOR_FLAG_BITS_SPECIAL_REPORTING_MODE) {
+            sensors.push_back(info);
+        }
+    }
+    return sensors;
+}
+
+std::vector<SensorInfo> SensorsAidlTest::getOneShotSensors() {
+    std::vector<SensorInfo> sensors;
+    for (const SensorInfo& info : getSensorsList()) {
+        if (extractReportMode(info.flags) == SensorInfo::SENSOR_FLAG_BITS_ONE_SHOT_MODE) {
+            sensors.push_back(info);
+        }
+    }
+    return sensors;
+}
+
+std::vector<SensorInfo> SensorsAidlTest::getInjectEventSensors() {
+    std::vector<SensorInfo> out;
+    std::vector<SensorInfo> sensorInfoList = getSensorsList();
+    for (const SensorInfo& info : sensorInfoList) {
+        if (info.flags & SensorInfo::SENSOR_FLAG_BITS_DATA_INJECTION) {
+            out.push_back(info);
+        }
+    }
+    return out;
+}
+
+void SensorsAidlTest::runSingleFlushTest(const std::vector<SensorInfo>& sensors,
+                                         bool activateSensor, int32_t expectedFlushCount,
+                                         bool expectedResult) {
+    runFlushTest(sensors, activateSensor, 1 /* flushCalls */, expectedFlushCount, expectedResult);
+}
+
+void SensorsAidlTest::runFlushTest(const std::vector<SensorInfo>& sensors, bool activateSensor,
+                                   int32_t flushCalls, int32_t expectedFlushCount,
+                                   bool expectedResult) {
+    EventCallback callback;
+    getEnvironment()->registerCallback(&callback);
+
+    for (const SensorInfo& sensor : sensors) {
+        // Configure and activate the sensor
+        batch(sensor.sensorHandle, sensor.maxDelayUs, 0 /* maxReportLatencyNs */);
+        activate(sensor.sensorHandle, activateSensor);
+
+        // Flush the sensor
+        for (int32_t i = 0; i < flushCalls; i++) {
+            SCOPED_TRACE(::testing::Message()
+                         << "Flush " << i << "/" << flushCalls << ": "
+                         << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                         << sensor.sensorHandle << std::dec
+                         << " type=" << static_cast<int>(sensor.type) << " name=" << sensor.name);
+
+            EXPECT_EQ(flush(sensor.sensorHandle).isOk(), expectedResult);
+        }
+    }
+
+    // Wait up to one second for the flush events
+    callback.waitForFlushEvents(sensors, flushCalls, std::chrono::milliseconds(1000) /* timeout */);
+
+    // Deactivate all sensors after waiting for flush events so pending flush events are not
+    // abandoned by the HAL.
+    for (const SensorInfo& sensor : sensors) {
+        activate(sensor.sensorHandle, false);
+    }
+    getEnvironment()->unregisterCallback();
+
+    // Check that the correct number of flushes are present for each sensor
+    for (const SensorInfo& sensor : sensors) {
+        SCOPED_TRACE(::testing::Message()
+                     << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                     << sensor.sensorHandle << std::dec << " type=" << static_cast<int>(sensor.type)
+                     << " name=" << sensor.name);
+        ASSERT_EQ(callback.getFlushCount(sensor.sensorHandle), expectedFlushCount);
+    }
+}
+
+TEST_P(SensorsAidlTest, SensorListValid) {
+    std::vector<SensorInfo> sensorInfoList = getSensorsList();
+    std::unordered_map<int32_t, std::vector<std::string>> sensorTypeNameMap;
+    for (size_t i = 0; i < sensorInfoList.size(); ++i) {
+        const SensorInfo& info = sensorInfoList[i];
+        SCOPED_TRACE(::testing::Message()
+                     << i << "/" << sensorInfoList.size() << ": "
+                     << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                     << info.sensorHandle << std::dec << " type=" << static_cast<int>(info.type)
+                     << " name=" << info.name);
+
+        // Test type string non-empty only for private sensor typeinfo.
+        if (info.type >= SensorType::DEVICE_PRIVATE_BASE) {
+            EXPECT_FALSE(info.typeAsString.empty());
+        } else if (!info.typeAsString.empty()) {
+            // Test type string matches framework string if specified for non-private typeinfo.
+            EXPECT_NO_FATAL_FAILURE(assertTypeMatchStringType(info.type, info.typeAsString));
+        }
+
+        // Test if all sensor has name and vendor
+        EXPECT_FALSE(info.name.empty());
+        EXPECT_FALSE(info.vendor.empty());
+
+        // Make sure that sensors of the same type have a unique name.
+        std::vector<std::string>& v = sensorTypeNameMap[static_cast<int32_t>(info.type)];
+        bool isUniqueName = std::find(v.begin(), v.end(), info.name) == v.end();
+        EXPECT_TRUE(isUniqueName) << "Duplicate sensor Name: " << info.name;
+        if (isUniqueName) {
+            v.push_back(info.name);
+        }
+
+        EXPECT_LE(0, info.power);
+        EXPECT_LT(0, info.maxRange);
+
+        // Info type, should have no sensor
+        EXPECT_FALSE(info.type == SensorType::ADDITIONAL_INFO ||
+                     info.type == SensorType::META_DATA);
+
+        EXPECT_GE(info.fifoMaxEventCount, info.fifoReservedEventCount);
+
+        // Test Reporting mode valid
+        EXPECT_NO_FATAL_FAILURE(
+                assertTypeMatchReportMode(info.type, extractReportMode(info.flags)));
+
+        // Test min max are in the right order
+        EXPECT_LE(info.minDelayUs, info.maxDelayUs);
+        // Test min/max delay matches reporting mode
+        EXPECT_NO_FATAL_FAILURE(assertDelayMatchReportMode(info.minDelayUs, info.maxDelayUs,
+                                                           extractReportMode(info.flags)));
+    }
+}
+
+TEST_P(SensorsAidlTest, SetOperationMode) {
+    if (getInjectEventSensors().size() > 0) {
+        ASSERT_TRUE(getSensors()->setOperationMode(ISensors::OperationMode::NORMAL).isOk());
+        ASSERT_TRUE(getSensors()->setOperationMode(ISensors::OperationMode::DATA_INJECTION).isOk());
+        ASSERT_TRUE(getSensors()->setOperationMode(ISensors::OperationMode::NORMAL).isOk());
+    } else {
+        ASSERT_EQ(getSensors()
+                          ->setOperationMode(ISensors::OperationMode::DATA_INJECTION)
+                          .getExceptionCode(),
+                  EX_UNSUPPORTED_OPERATION);
+    }
+}
+
+TEST_P(SensorsAidlTest, InjectSensorEventData) {
+    std::vector<SensorInfo> sensors = getInjectEventSensors();
+    if (sensors.size() == 0) {
+        return;
+    }
+
+    ASSERT_TRUE(getSensors()->setOperationMode(ISensors::OperationMode::DATA_INJECTION).isOk());
+
+    EventCallback callback;
+    getEnvironment()->registerCallback(&callback);
+
+    // AdditionalInfo event should not be sent to Event FMQ
+    Event additionalInfoEvent;
+    additionalInfoEvent.sensorType = SensorType::ADDITIONAL_INFO;
+    additionalInfoEvent.timestamp = android::elapsedRealtimeNano();
+
+    Event injectedEvent;
+    injectedEvent.timestamp = android::elapsedRealtimeNano();
+    Event::EventPayload::Vec3 data = {1, 2, 3, SensorStatus::ACCURACY_HIGH};
+    injectedEvent.payload.set<Event::EventPayload::Tag::vec3>(data);
+
+    for (const auto& s : sensors) {
+        additionalInfoEvent.sensorHandle = s.sensorHandle;
+        ASSERT_TRUE(getSensors()->injectSensorData(additionalInfoEvent).isOk());
+
+        injectedEvent.sensorType = s.type;
+        injectedEvent.sensorHandle = s.sensorHandle;
+        ASSERT_TRUE(getSensors()->injectSensorData(injectedEvent).isOk());
+    }
+
+    // Wait for events to be written back to the Event FMQ
+    callback.waitForEvents(sensors, std::chrono::milliseconds(1000) /* timeout */);
+    getEnvironment()->unregisterCallback();
+
+    for (const auto& s : sensors) {
+        auto events = callback.getEvents(s.sensorHandle);
+        if (events.empty()) {
+            FAIL() << "Received no events";
+        } else {
+            auto lastEvent = events.back();
+            SCOPED_TRACE(::testing::Message()
+                         << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                         << s.sensorHandle << std::dec << " type=" << static_cast<int>(s.type)
+                         << " name=" << s.name);
+
+            // Verify that only a single event has been received
+            ASSERT_EQ(events.size(), 1);
+
+            // Verify that the event received matches the event injected and is not the additional
+            // info event
+            ASSERT_EQ(lastEvent.sensorType, s.type);
+            ASSERT_EQ(lastEvent.timestamp, injectedEvent.timestamp);
+            ASSERT_EQ(lastEvent.payload.get<Event::EventPayload::Tag::vec3>().x,
+                      injectedEvent.payload.get<Event::EventPayload::Tag::vec3>().x);
+            ASSERT_EQ(lastEvent.payload.get<Event::EventPayload::Tag::vec3>().y,
+                      injectedEvent.payload.get<Event::EventPayload::Tag::vec3>().y);
+            ASSERT_EQ(lastEvent.payload.get<Event::EventPayload::Tag::vec3>().z,
+                      injectedEvent.payload.get<Event::EventPayload::Tag::vec3>().z);
+            ASSERT_EQ(lastEvent.payload.get<Event::EventPayload::Tag::vec3>().status,
+                      injectedEvent.payload.get<Event::EventPayload::Tag::vec3>().status);
+        }
+    }
+
+    ASSERT_TRUE(getSensors()->setOperationMode(ISensors::OperationMode::NORMAL).isOk());
+}
+
+TEST_P(SensorsAidlTest, CallInitializeTwice) {
+    // Create a helper class so that a second environment is able to be instantiated
+    class SensorsAidlEnvironmentTest : public SensorsAidlEnvironment {
+      public:
+        SensorsAidlEnvironmentTest(const std::string& service_name)
+            : SensorsAidlEnvironment(service_name) {}
+    };
+
+    if (getSensorsList().size() == 0) {
+        // No sensors
+        return;
+    }
+
+    constexpr useconds_t kCollectionTimeoutUs = 1000 * 1000;  // 1s
+    constexpr int32_t kNumEvents = 1;
+
+    // Create a new environment that calls initialize()
+    std::unique_ptr<SensorsAidlEnvironmentTest> newEnv =
+            std::make_unique<SensorsAidlEnvironmentTest>(GetParam());
+    newEnv->SetUp();
+    if (HasFatalFailure()) {
+        return;  // Exit early if setting up the new environment failed
+    }
+
+    activateAllSensors(true);
+    // Verify that the old environment does not receive any events
+    EXPECT_EQ(getEnvironment()->collectEvents(kCollectionTimeoutUs, kNumEvents).size(), 0);
+    // Verify that the new event queue receives sensor events
+    EXPECT_GE(newEnv.get()->collectEvents(kCollectionTimeoutUs, kNumEvents).size(), kNumEvents);
+    activateAllSensors(false);
+
+    // Cleanup the test environment
+    newEnv->TearDown();
+
+    // Restore the test environment for future tests
+    getEnvironment()->TearDown();
+    getEnvironment()->SetUp();
+    if (HasFatalFailure()) {
+        return;  // Exit early if resetting the environment failed
+    }
+
+    // Ensure that the original environment is receiving events
+    activateAllSensors(true);
+    EXPECT_GE(getEnvironment()->collectEvents(kCollectionTimeoutUs, kNumEvents).size(), kNumEvents);
+    activateAllSensors(false);
+}
+
+TEST_P(SensorsAidlTest, CleanupConnectionsOnInitialize) {
+    activateAllSensors(true);
+
+    // Verify that events are received
+    constexpr useconds_t kCollectionTimeoutUs = 1000 * 1000;  // 1s
+    constexpr int32_t kNumEvents = 1;
+    ASSERT_GE(getEnvironment()->collectEvents(kCollectionTimeoutUs, kNumEvents).size(), kNumEvents);
+
+    // Clear the active sensor handles so they are not disabled during TearDown
+    auto handles = mSensorHandles;
+    mSensorHandles.clear();
+    getEnvironment()->TearDown();
+    getEnvironment()->SetUp();
+    if (HasFatalFailure()) {
+        return;  // Exit early if resetting the environment failed
+    }
+
+    // Verify no events are received until sensors are re-activated
+    ASSERT_EQ(getEnvironment()->collectEvents(kCollectionTimeoutUs, kNumEvents).size(), 0);
+    activateAllSensors(true);
+    ASSERT_GE(getEnvironment()->collectEvents(kCollectionTimeoutUs, kNumEvents).size(), kNumEvents);
+
+    // Disable sensors
+    activateAllSensors(false);
+
+    // Restore active sensors prior to clearing the environment
+    mSensorHandles = handles;
+}
+
+TEST_P(SensorsAidlTest, FlushSensor) {
+    std::vector<SensorInfo> sensors = getNonOneShotSensors();
+    if (sensors.size() == 0) {
+        return;
+    }
+
+    constexpr int32_t kFlushes = 5;
+    runSingleFlushTest(sensors, true /* activateSensor */, 1 /* expectedFlushCount */,
+                       true /* expectedResult */);
+    runFlushTest(sensors, true /* activateSensor */, kFlushes, kFlushes, true /* expectedResult */);
+}
+
+TEST_P(SensorsAidlTest, FlushOneShotSensor) {
+    // Find a sensor that is a one-shot sensor
+    std::vector<SensorInfo> sensors = getOneShotSensors();
+    if (sensors.size() == 0) {
+        return;
+    }
+
+    runSingleFlushTest(sensors, true /* activateSensor */, 0 /* expectedFlushCount */,
+                       false /* expectedResult */);
+}
+
+TEST_P(SensorsAidlTest, FlushInactiveSensor) {
+    // Attempt to find a non-one shot sensor, then a one-shot sensor if necessary
+    std::vector<SensorInfo> sensors = getNonOneShotSensors();
+    if (sensors.size() == 0) {
+        sensors = getOneShotSensors();
+        if (sensors.size() == 0) {
+            return;
+        }
+    }
+
+    runSingleFlushTest(sensors, false /* activateSensor */, 0 /* expectedFlushCount */,
+                       false /* expectedResult */);
+}
+
+TEST_P(SensorsAidlTest, Batch) {
+    if (getSensorsList().size() == 0) {
+        return;
+    }
+
+    activateAllSensors(false /* enable */);
+    for (const SensorInfo& sensor : getSensorsList()) {
+        SCOPED_TRACE(::testing::Message()
+                     << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                     << sensor.sensorHandle << std::dec << " type=" << static_cast<int>(sensor.type)
+                     << " name=" << sensor.name);
+
+        // Call batch on inactive sensor
+        // One shot sensors have minDelay set to -1 which is an invalid
+        // parameter. Use 0 instead to avoid errors.
+        int64_t samplingPeriodNs =
+                extractReportMode(sensor.flags) == SensorInfo::SENSOR_FLAG_BITS_ONE_SHOT_MODE
+                        ? 0
+                        : sensor.minDelayUs;
+        checkIsOk(batch(sensor.sensorHandle, samplingPeriodNs, 0 /* maxReportLatencyNs */));
+
+        // Activate the sensor
+        activate(sensor.sensorHandle, true /* enabled */);
+
+        // Call batch on an active sensor
+        checkIsOk(batch(sensor.sensorHandle, sensor.maxDelayUs, 0 /* maxReportLatencyNs */));
+    }
+    activateAllSensors(false /* enable */);
+
+    // Call batch on an invalid sensor
+    SensorInfo sensor = getSensorsList().front();
+    sensor.sensorHandle = getInvalidSensorHandle();
+    ASSERT_EQ(batch(sensor.sensorHandle, sensor.minDelayUs, 0 /* maxReportLatencyNs */)
+                      .getExceptionCode(),
+              EX_ILLEGAL_ARGUMENT);
+}
+
+TEST_P(SensorsAidlTest, Activate) {
+    if (getSensorsList().size() == 0) {
+        return;
+    }
+
+    // Verify that sensor events are generated when activate is called
+    for (const SensorInfo& sensor : getSensorsList()) {
+        SCOPED_TRACE(::testing::Message()
+                     << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                     << sensor.sensorHandle << std::dec << " type=" << static_cast<int>(sensor.type)
+                     << " name=" << sensor.name);
+
+        checkIsOk(batch(sensor.sensorHandle, sensor.minDelayUs, 0 /* maxReportLatencyNs */));
+        checkIsOk(activate(sensor.sensorHandle, true));
+
+        // Call activate on a sensor that is already activated
+        checkIsOk(activate(sensor.sensorHandle, true));
+
+        // Deactivate the sensor
+        checkIsOk(activate(sensor.sensorHandle, false));
+
+        // Call deactivate on a sensor that is already deactivated
+        checkIsOk(activate(sensor.sensorHandle, false));
+    }
+
+    // Attempt to activate an invalid sensor
+    int32_t invalidHandle = getInvalidSensorHandle();
+    ASSERT_EQ(activate(invalidHandle, true).getExceptionCode(), EX_ILLEGAL_ARGUMENT);
+    ASSERT_EQ(activate(invalidHandle, false).getExceptionCode(), EX_ILLEGAL_ARGUMENT);
+}
+
+TEST_P(SensorsAidlTest, NoStaleEvents) {
+    constexpr std::chrono::milliseconds kFiveHundredMs(500);
+    constexpr std::chrono::milliseconds kOneSecond(1000);
+
+    // Register the callback to receive sensor events
+    EventCallback callback;
+    getEnvironment()->registerCallback(&callback);
+
+    // This test is not valid for one-shot, on-change or special-report-mode sensors
+    const std::vector<SensorInfo> sensors = getNonOneShotAndNonOnChangeAndNonSpecialSensors();
+    std::chrono::milliseconds maxMinDelay(0);
+    for (const SensorInfo& sensor : sensors) {
+        std::chrono::milliseconds minDelay = duration_cast<std::chrono::milliseconds>(
+                std::chrono::microseconds(sensor.minDelayUs));
+        maxMinDelay = std::chrono::milliseconds(std::max(maxMinDelay.count(), minDelay.count()));
+    }
+
+    // Activate the sensors so that they start generating events
+    activateAllSensors(true);
+
+    // According to the CDD, the first sample must be generated within 400ms + 2 * sample_time
+    // and the maximum reporting latency is 100ms + 2 * sample_time. Wait a sufficient amount
+    // of time to guarantee that a sample has arrived.
+    callback.waitForEvents(sensors, kFiveHundredMs + (5 * maxMinDelay));
+    activateAllSensors(false);
+
+    // Save the last received event for each sensor
+    std::map<int32_t, int64_t> lastEventTimestampMap;
+    for (const SensorInfo& sensor : sensors) {
+        SCOPED_TRACE(::testing::Message()
+                     << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                     << sensor.sensorHandle << std::dec << " type=" << static_cast<int>(sensor.type)
+                     << " name=" << sensor.name);
+
+        if (callback.getEvents(sensor.sensorHandle).size() >= 1) {
+            lastEventTimestampMap[sensor.sensorHandle] =
+                    callback.getEvents(sensor.sensorHandle).back().timestamp;
+        }
+    }
+
+    // Allow some time to pass, reset the callback, then reactivate the sensors
+    usleep(duration_cast<std::chrono::microseconds>(kOneSecond + (5 * maxMinDelay)).count());
+    callback.reset();
+    activateAllSensors(true);
+    callback.waitForEvents(sensors, kFiveHundredMs + (5 * maxMinDelay));
+    activateAllSensors(false);
+
+    getEnvironment()->unregisterCallback();
+
+    for (const SensorInfo& sensor : sensors) {
+        SCOPED_TRACE(::testing::Message()
+                     << " handle=0x" << std::hex << std::setw(8) << std::setfill('0')
+                     << sensor.sensorHandle << std::dec << " type=" << static_cast<int>(sensor.type)
+                     << " name=" << sensor.name);
+
+        // Skip sensors that did not previously report an event
+        if (lastEventTimestampMap.find(sensor.sensorHandle) == lastEventTimestampMap.end()) {
+            continue;
+        }
+
+        // Ensure that the first event received is not stale by ensuring that its timestamp is
+        // sufficiently different from the previous event
+        const Event newEvent = callback.getEvents(sensor.sensorHandle).front();
+        std::chrono::milliseconds delta =
+                duration_cast<std::chrono::milliseconds>(std::chrono::nanoseconds(
+                        newEvent.timestamp - lastEventTimestampMap[sensor.sensorHandle]));
+        std::chrono::milliseconds sensorMinDelay = duration_cast<std::chrono::milliseconds>(
+                std::chrono::microseconds(sensor.minDelayUs));
+        ASSERT_GE(delta, kFiveHundredMs + (3 * sensorMinDelay));
+    }
+}
+
+TEST_P(SensorsAidlTest, DirectChannelAshmem) {
+    // TODO(b/195593357): Implement this
+}
+
+TEST_P(SensorsAidlTest, DirectChannelGralloc) {
+    // TODO(b/195593357): Implement this
+}
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(SensorsAidlTest);
+INSTANTIATE_TEST_SUITE_P(Sensors, SensorsAidlTest,
+                         testing::ValuesIn(android::getAidlHalInstanceNames(ISensors::descriptor)),
+                         android::PrintInstanceNameToString);
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    ProcessState::self()->setThreadPoolMaxThreadCount(1);
+    ProcessState::self()->startThreadPool();
+    return RUN_ALL_TESTS();
+}