diff --git a/audio/2.0/IDevicesFactory.hal b/audio/2.0/IDevicesFactory.hal
index a4e6956..f1dc7d3 100644
--- a/audio/2.0/IDevicesFactory.hal
+++ b/audio/2.0/IDevicesFactory.hal
@@ -22,7 +22,7 @@
 interface IDevicesFactory {
     typedef android.hardware.audio@2.0::Result Result;
 
-    enum Device {
+    enum Device : int32_t {
         PRIMARY,
         A2DP,
         USB,
diff --git a/audio/2.0/IPrimaryDevice.hal b/audio/2.0/IPrimaryDevice.hal
index 6beddfe..f1dd56e 100644
--- a/audio/2.0/IPrimaryDevice.hal
+++ b/audio/2.0/IPrimaryDevice.hal
@@ -76,7 +76,7 @@
      */
     setBtScoWidebandEnabled(bool enabled) generates (Result retval);
 
-    enum TtyMode {
+    enum TtyMode : int32_t {
         OFF,
         VCO,
         HCO,
diff --git a/audio/2.0/default/Device.h b/audio/2.0/default/Device.h
index 3fd67e3..49d6b2c 100644
--- a/audio/2.0/default/Device.h
+++ b/audio/2.0/default/Device.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_V2_0_Device_H_
-#define HIDL_GENERATED_android_hardware_audio_V2_0_Device_H_
+#ifndef ANDROID_HARDWARE_AUDIO_V2_0_DEVICE_H
+#define ANDROID_HARDWARE_AUDIO_V2_0_DEVICE_H
 
 #include <memory>
 
@@ -144,4 +144,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_V2_0_Device_H_
+#endif  // ANDROID_HARDWARE_AUDIO_V2_0_DEVICE_H
diff --git a/audio/2.0/default/DevicesFactory.h b/audio/2.0/default/DevicesFactory.h
index 0ea9859..b046f9f 100644
--- a/audio/2.0/default/DevicesFactory.h
+++ b/audio/2.0/default/DevicesFactory.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_V2_0_DevicesFactory_H_
-#define HIDL_GENERATED_android_hardware_audio_V2_0_DevicesFactory_H_
+#ifndef ANDROID_HARDWARE_AUDIO_V2_0_DEVICESFACTORY_H
+#define ANDROID_HARDWARE_AUDIO_V2_0_DEVICESFACTORY_H
 
 #include <hardware/audio.h>
 
@@ -56,4 +56,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_V2_0_DevicesFactory_H_
+#endif  // ANDROID_HARDWARE_AUDIO_V2_0_DEVICESFACTORY_H
diff --git a/audio/2.0/default/PrimaryDevice.h b/audio/2.0/default/PrimaryDevice.h
index 968c208..8177b68 100644
--- a/audio/2.0/default/PrimaryDevice.h
+++ b/audio/2.0/default/PrimaryDevice.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_V2_0_PrimaryDevice_H_
-#define HIDL_GENERATED_android_hardware_audio_V2_0_PrimaryDevice_H_
+#ifndef ANDROID_HARDWARE_AUDIO_V2_0_PRIMARYDEVICE_H
+#define ANDROID_HARDWARE_AUDIO_V2_0_PRIMARYDEVICE_H
 
 #include <android/hardware/audio/2.0/IPrimaryDevice.h>
 #include <hidl/Status.h>
@@ -114,4 +114,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_V2_0_PrimaryDevice_H_
+#endif  // ANDROID_HARDWARE_AUDIO_V2_0_PRIMARYDEVICE_H
diff --git a/audio/2.0/default/Stream.h b/audio/2.0/default/Stream.h
index 3893af4..2e641d6 100644
--- a/audio/2.0/default/Stream.h
+++ b/audio/2.0/default/Stream.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_V2_0_Stream_H_
-#define HIDL_GENERATED_android_hardware_audio_V2_0_Stream_H_
+#ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAM_H
+#define ANDROID_HARDWARE_AUDIO_V2_0_STREAM_H
 
 #include <android/hardware/audio/2.0/IStream.h>
 #include <hidl/Status.h>
@@ -91,4 +91,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_V2_0_Stream_H_
+#endif  // ANDROID_HARDWARE_AUDIO_V2_0_STREAM_H
diff --git a/audio/2.0/default/StreamIn.h b/audio/2.0/default/StreamIn.h
index c2a7ea2..f7c17b7 100644
--- a/audio/2.0/default/StreamIn.h
+++ b/audio/2.0/default/StreamIn.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_V2_0_StreamIn_H_
-#define HIDL_GENERATED_android_hardware_audio_V2_0_StreamIn_H_
+#ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H
+#define ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H
 
 #include <android/hardware/audio/2.0/IStreamIn.h>
 #include <hidl/Status.h>
@@ -95,4 +95,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_V2_0_StreamIn_H_
+#endif  // ANDROID_HARDWARE_AUDIO_V2_0_STREAMIN_H
diff --git a/audio/2.0/default/StreamOut.h b/audio/2.0/default/StreamOut.h
index ca33b2d..d51fc66 100644
--- a/audio/2.0/default/StreamOut.h
+++ b/audio/2.0/default/StreamOut.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_V2_0_StreamOut_H_
-#define HIDL_GENERATED_android_hardware_audio_V2_0_StreamOut_H_
+#ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
+#define ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
 
 #include <android/hardware/audio/2.0/IStreamOut.h>
 #include <hidl/Status.h>
@@ -110,4 +110,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_V2_0_StreamOut_H_
+#endif  // ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
diff --git a/audio/2.0/types.hal b/audio/2.0/types.hal
index 9a5e4f1..7002f38 100644
--- a/audio/2.0/types.hal
+++ b/audio/2.0/types.hal
@@ -18,7 +18,7 @@
 
 import android.hardware.audio.common@2.0;
 
-enum Result {
+enum Result : int32_t {
     OK,
     NOT_INITIALIZED,
     INVALID_ARGUMENTS,
@@ -27,7 +27,7 @@
 };
 
 @export(name="audio_drain_type_t", value_prefix="AUDIO_DRAIN_")
-enum AudioDrain {
+enum AudioDrain : int32_t {
     /* drain() returns when all data has been played. */
     ALL,
     /* drain() returns a short time before all data from the current track has
diff --git a/audio/common/2.0/types.hal b/audio/common/2.0/types.hal
index 75fdb52..4e969a7 100644
--- a/audio/common/2.0/types.hal
+++ b/audio/common/2.0/types.hal
@@ -56,7 +56,7 @@
  * Each port has a unique ID or handle allocated by policy manager.
  */
 @export(name="")
-enum AudioHandleConsts {
+enum AudioHandleConsts : int32_t {
     AUDIO_IO_HANDLE_NONE = 0,
     AUDIO_MODULE_HANDLE_NONE = 0,
     AUDIO_PORT_HANDLE_NONE = 0,
@@ -114,7 +114,7 @@
 };
 
 @export(name="audio_source_t", value_prefix="AUDIO_SOURCE_")
-enum AudioSource {
+enum AudioSource : int32_t {
     // These values must kept in sync with
     //  frameworks/base/media/java/android/media/MediaRecorder.java,
     //  frameworks/av/services/audiopolicy/AudioPolicyService.cpp,
@@ -269,7 +269,7 @@
  * assumptions.
  */
 @export(name="")
-enum FixedChannelCount {
+enum FixedChannelCount : int32_t {
     FCC_2 = 2, // This is typically due to legacy implementation of stereo I/O
     FCC_8 = 8  // This is typically due to audio mixer and resampler limitations
 };
@@ -425,7 +425,7 @@
  * to this convention will be noted at the appropriate API.
  */
 @export(name="", value_prefix="AUDIO_INTERLEAVE_")
-enum AudioInterleave {
+enum AudioInterleave : int32_t {
     LEFT   = 0,
     RIGHT  = 1,
 };
@@ -435,7 +435,7 @@
  * routing.
  */
 @export(name="audio_mode_t", value_prefix="AUDIO_MODE_")
-enum AudioMode {
+enum AudioMode : int32_t {
     INVALID          = -2,
     CURRENT          = -1,
     NORMAL           = 0,
@@ -597,7 +597,7 @@
  * (when getOuput() is called) to an available output stream.
  */
 @export(name="audio_output_flags_t", value_prefix="AUDIO_OUTPUT_FLAG_")
-enum AudioOutputFlag {
+enum AudioOutputFlag : int32_t {
     NONE    = 0x0, // no attributes
     DIRECT  = 0x1, // this output directly connects a track
                    // to one output stream: no software mixer
@@ -627,7 +627,7 @@
  * attributes corresponding to the specified flags.
  */
 @export(name="audio_input_flags_t", value_prefix="AUDIO_INPUT_FLAG_")
-enum AudioInputFlag {
+enum AudioInputFlag : int32_t {
     NONE       = 0x0,  // no attributes
     FAST       = 0x1,  // prefer an input that supports "fast tracks"
     HW_HOTWORD = 0x2,  // prefer an input that captures from hw hotword source
@@ -728,7 +728,7 @@
 
 /* Audio port role: either source or sink */
 @export(name="audio_port_role_t", value_prefix="AUDIO_PORT_ROLE_")
-enum AudioPortRole {
+enum AudioPortRole : int32_t {
     NONE,
     SOURCE,
     SINK,
@@ -739,7 +739,7 @@
  * PlaybackThread output) or a physical device (e.g OUT_SPEAKER)
  */
 @export(name="audio_port_type_t", value_prefix="AUDIO_PORT_TYPE_")
-enum AudioPortType {
+enum AudioPortType : int32_t {
     NONE,
     DEVICE,
     MIX,
@@ -816,7 +816,7 @@
  * Latency class of the audio mix.
  */
 @export(name="audio_mix_latency_class_t", value_prefix="AUDIO_LATENCY_")
-enum AudioMixLatencyClass {
+enum AudioMixLatencyClass : int32_t {
     LOW,
     NORMAL
 } ;
diff --git a/audio/effect/2.0/IDownmixEffect.hal b/audio/effect/2.0/IDownmixEffect.hal
index 817e14c..06409a3 100644
--- a/audio/effect/2.0/IDownmixEffect.hal
+++ b/audio/effect/2.0/IDownmixEffect.hal
@@ -20,7 +20,7 @@
 import IEffect;
 
 interface IDownmixEffect extends IEffect {
-    enum Type {
+    enum Type : int32_t {
         STRIP, // throw away the extra channels
         FOLD   // mix the extra channels with FL/FR
     };
diff --git a/audio/effect/2.0/INoiseSuppressionEffect.hal b/audio/effect/2.0/INoiseSuppressionEffect.hal
index 58e439f..ae2bfb5 100644
--- a/audio/effect/2.0/INoiseSuppressionEffect.hal
+++ b/audio/effect/2.0/INoiseSuppressionEffect.hal
@@ -20,7 +20,7 @@
 import IEffect;
 
 interface INoiseSuppressionEffect extends IEffect {
-    enum Level {
+    enum Level : int32_t {
         LOW,
         MEDIUM,
         HIGH
@@ -36,7 +36,7 @@
      */
     getSuppressionLevel() generates (Result retval, Level level);
 
-    enum Type {
+    enum Type : int32_t {
         SINGLE_CHANNEL,
         MULTI_CHANNEL
     };
diff --git a/audio/effect/2.0/IPresetReverbEffect.hal b/audio/effect/2.0/IPresetReverbEffect.hal
index 58dfd40..2237bc4 100644
--- a/audio/effect/2.0/IPresetReverbEffect.hal
+++ b/audio/effect/2.0/IPresetReverbEffect.hal
@@ -20,7 +20,7 @@
 import IEffect;
 
 interface IPresetReverbEffect extends IEffect {
-    enum Preset {
+    enum Preset : int32_t {
         NONE,        // no reverb or reflections
         SMALLROOM,   // a small room less than five meters in length
         MEDIUMROOM,  // a medium room with a length of ten meters or less
diff --git a/audio/effect/2.0/IVisualizerEffect.hal b/audio/effect/2.0/IVisualizerEffect.hal
index 70dabf9..79dc9ee 100644
--- a/audio/effect/2.0/IVisualizerEffect.hal
+++ b/audio/effect/2.0/IVisualizerEffect.hal
@@ -20,7 +20,7 @@
 import IEffect;
 
 interface IVisualizerEffect extends IEffect {
-    enum CaptureSizeRange {
+    enum CaptureSizeRange : int32_t {
         MAX = 1024,  // maximum capture size in samples
         MIN = 128    // minimum capture size in samples
     };
@@ -35,7 +35,7 @@
      */
     getCaptureSize() generates (Result retval, uint16_t captureSize);
 
-    enum ScalingMode {
+    enum ScalingMode : int32_t {
         // Keep in sync with SCALING_MODE_... in
         // frameworks/base/media/java/android/media/audiofx/Visualizer.java
         NORMALIZED = 0,
@@ -62,7 +62,7 @@
      */
     getLatency() generates (Result retval, uint32_t latencyMs);
 
-    enum MeasurementMode {
+    enum MeasurementMode : int32_t {
         // Keep in sync with MEASUREMENT_MODE_... in
         // frameworks/base/media/java/android/media/audiofx/Visualizer.java
         NONE = 0x0,
diff --git a/audio/effect/2.0/default/AcousticEchoCancelerEffect.h b/audio/effect/2.0/default/AcousticEchoCancelerEffect.h
index cebc2d4..71fcc97 100644
--- a/audio/effect/2.0/default/AcousticEchoCancelerEffect.h
+++ b/audio/effect/2.0/default/AcousticEchoCancelerEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_AcousticEchoCancelerEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_AcousticEchoCancelerEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ACOUSTICECHOCANCELEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ACOUSTICECHOCANCELEREFFECT_H
 
 #include <android/hardware/audio/effect/2.0/IAcousticEchoCancelerEffect.h>
 #include <hidl/Status.h>
@@ -115,4 +115,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_AcousticEchoCancelerEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ACOUSTICECHOCANCELEREFFECT_H
diff --git a/audio/effect/2.0/default/AutomaticGainControlEffect.h b/audio/effect/2.0/default/AutomaticGainControlEffect.h
index f4b228c..1696d3c 100644
--- a/audio/effect/2.0/default/AutomaticGainControlEffect.h
+++ b/audio/effect/2.0/default/AutomaticGainControlEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_AutomaticGainControlEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_AutomaticGainControlEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUTOMATICGAINCONTROLEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUTOMATICGAINCONTROLEFFECT_H
 
 #include <system/audio_effects/effect_agc.h>
 
@@ -131,4 +131,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_AutomaticGainControlEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_AUTOMATICGAINCONTROLEFFECT_H
diff --git a/audio/effect/2.0/default/BassBoostEffect.h b/audio/effect/2.0/default/BassBoostEffect.h
index 23377e1..6636717 100644
--- a/audio/effect/2.0/default/BassBoostEffect.h
+++ b/audio/effect/2.0/default/BassBoostEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_BassBoostEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_BassBoostEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_BASSBOOSTEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_BASSBOOSTEFFECT_H
 
 #include <android/hardware/audio/effect/2.0/IBassBoostEffect.h>
 #include <hidl/Status.h>
@@ -116,4 +116,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_BassBoostEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_BASSBOOSTEFFECT_H
diff --git a/audio/effect/2.0/default/DownmixEffect.h b/audio/effect/2.0/default/DownmixEffect.h
index 5ed4ffd..c7e1b9b 100644
--- a/audio/effect/2.0/default/DownmixEffect.h
+++ b/audio/effect/2.0/default/DownmixEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_DownmixEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_DownmixEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_DOWNMIXEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_DOWNMIXEFFECT_H
 
 #include <android/hardware/audio/effect/2.0/IDownmixEffect.h>
 #include <hidl/Status.h>
@@ -115,4 +115,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_DownmixEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_DOWNMIXEFFECT_H
diff --git a/audio/effect/2.0/default/Effect.h b/audio/effect/2.0/default/Effect.h
index e27a7e4..82eb1f2 100644
--- a/audio/effect/2.0/default/Effect.h
+++ b/audio/effect/2.0/default/Effect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_Effect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_Effect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECT_H
 
 #include <vector>
 
@@ -256,4 +256,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_Effect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECT_H
diff --git a/audio/effect/2.0/default/EffectsFactory.h b/audio/effect/2.0/default/EffectsFactory.h
index d934c93..829a534 100644
--- a/audio/effect/2.0/default/EffectsFactory.h
+++ b/audio/effect/2.0/default/EffectsFactory.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_EffectsFactory_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_EffectsFactory_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECTSFACTORY_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECTSFACTORY_H
 
 #include <system/audio_effect.h>
 
@@ -63,4 +63,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_EffectsFactory_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EFFECTSFACTORY_H
diff --git a/audio/effect/2.0/default/EnvironmentalReverbEffect.h b/audio/effect/2.0/default/EnvironmentalReverbEffect.h
index c97c51c..edb5747 100644
--- a/audio/effect/2.0/default/EnvironmentalReverbEffect.h
+++ b/audio/effect/2.0/default/EnvironmentalReverbEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_EnvironmentalReverbEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_EnvironmentalReverbEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ENVIRONMENTALREVERBEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ENVIRONMENTALREVERBEFFECT_H
 
 #include <system/audio_effects/effect_environmentalreverb.h>
 
@@ -157,4 +157,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_EnvironmentalReverbEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_ENVIRONMENTALREVERBEFFECT_H
diff --git a/audio/effect/2.0/default/EqualizerEffect.h b/audio/effect/2.0/default/EqualizerEffect.h
index 5665e9c..ba99e2b 100644
--- a/audio/effect/2.0/default/EqualizerEffect.h
+++ b/audio/effect/2.0/default/EqualizerEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_EqualizerEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_EqualizerEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EQUALIZEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EQUALIZEREFFECT_H
 
 #include <vector>
 
@@ -147,4 +147,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_EqualizerEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_EQUALIZEREFFECT_H
diff --git a/audio/effect/2.0/default/LoudnessEnhancerEffect.h b/audio/effect/2.0/default/LoudnessEnhancerEffect.h
index e68b038..8ca6e94 100644
--- a/audio/effect/2.0/default/LoudnessEnhancerEffect.h
+++ b/audio/effect/2.0/default/LoudnessEnhancerEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_LoudnessEnhancerEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_LoudnessEnhancerEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_LOUDNESSENHANCEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_LOUDNESSENHANCEREFFECT_H
 
 #include <android/hardware/audio/effect/2.0/ILoudnessEnhancerEffect.h>
 #include <hidl/Status.h>
@@ -125,4 +125,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_LoudnessEnhancerEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_LOUDNESSENHANCEREFFECT_H
diff --git a/audio/effect/2.0/default/NoiseSuppressionEffect.h b/audio/effect/2.0/default/NoiseSuppressionEffect.h
index 83e513e..b73727e 100644
--- a/audio/effect/2.0/default/NoiseSuppressionEffect.h
+++ b/audio/effect/2.0/default/NoiseSuppressionEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_NoiseSuppressionEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_NoiseSuppressionEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_NOISESUPPRESSIONEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_NOISESUPPRESSIONEFFECT_H
 
 #include <system/audio_effects/effect_ns.h>
 
@@ -139,4 +139,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_NoiseSuppressionEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_NOISESUPPRESSIONEFFECT_H
diff --git a/audio/effect/2.0/default/PresetReverbEffect.h b/audio/effect/2.0/default/PresetReverbEffect.h
index 3d98102..4d39569 100644
--- a/audio/effect/2.0/default/PresetReverbEffect.h
+++ b/audio/effect/2.0/default/PresetReverbEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_PresetReverbEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_PresetReverbEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_PRESETREVERBEFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_PRESETREVERBEFFECT_H
 
 #include <android/hardware/audio/effect/2.0/IPresetReverbEffect.h>
 #include <hidl/Status.h>
@@ -125,4 +125,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_PresetReverbEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_PRESETREVERBEFFECT_H
diff --git a/audio/effect/2.0/default/VirtualizerEffect.h b/audio/effect/2.0/default/VirtualizerEffect.h
index 2731c4e..ba89a61 100644
--- a/audio/effect/2.0/default/VirtualizerEffect.h
+++ b/audio/effect/2.0/default/VirtualizerEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_VirtualizerEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_VirtualizerEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VIRTUALIZEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VIRTUALIZEREFFECT_H
 
 #include <android/hardware/audio/effect/2.0/IVirtualizerEffect.h>
 #include <hidl/Status.h>
@@ -136,4 +136,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_VirtualizerEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VIRTUALIZEREFFECT_H
diff --git a/audio/effect/2.0/default/VisualizerEffect.h b/audio/effect/2.0/default/VisualizerEffect.h
index 505b16f..ae0b05c 100644
--- a/audio/effect/2.0/default/VisualizerEffect.h
+++ b/audio/effect/2.0/default/VisualizerEffect.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_audio_effect_V2_0_VisualizerEffect_H_
-#define HIDL_GENERATED_android_hardware_audio_effect_V2_0_VisualizerEffect_H_
+#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VISUALIZEREFFECT_H
+#define ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VISUALIZEREFFECT_H
 
 #include <android/hardware/audio/effect/2.0/IVisualizerEffect.h>
 #include <hidl/Status.h>
@@ -135,4 +135,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_audio_effect_V2_0_VisualizerEffect_H_
+#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_V2_0_VISUALIZEREFFECT_H
diff --git a/audio/effect/2.0/types.hal b/audio/effect/2.0/types.hal
index 35015b2..ad7f4ce 100644
--- a/audio/effect/2.0/types.hal
+++ b/audio/effect/2.0/types.hal
@@ -18,7 +18,7 @@
 
 import android.hardware.audio.common@2.0;
 
-enum Result {
+enum Result : int32_t {
     OK,
     NOT_INITIALIZED,
     INVALID_ARGUMENTS,
@@ -110,7 +110,7 @@
  * +----------------+--------+--------------------------------------------------
  */
 @export(name="", value_prefix="EFFECT_FLAG_")
-enum EffectFlags {
+enum EffectFlags : int32_t {
     // Insert mode
     TYPE_SHIFT = 0,
     TYPE_SIZE = 3,
@@ -229,7 +229,7 @@
 };
 
 @export(name="effect_buffer_access_e", value_prefix="EFFECT_BUFFER_")
-enum EffectBufferAccess {
+enum EffectBufferAccess : int32_t {
     ACCESS_WRITE,
     ACCESS_READ,
     ACCESS_ACCUMULATE
@@ -239,7 +239,7 @@
  * Determines what fields of EffectBufferConfig need to be considered.
  */
 @export(name="", value_prefix="EFFECT_CONFIG_")
-enum EffectConfigParameters {
+enum EffectConfigParameters : int32_t {
     BUFFER = 0x0001,    // buffer field
     SMP_RATE = 0x0002,  // samplingRate
     CHANNELS = 0x0004,  // channels
@@ -267,7 +267,7 @@
 };
 
 @export(name="effect_feature_e", value_prefix="EFFECT_FEATURE_")
-enum EffectFeature {
+enum EffectFeature : int32_t {
     AUX_CHANNELS, // supports auxiliary channels
                   // (e.g. dual mic noise suppressor)
     CNT
diff --git a/boot/1.0/default/BootControl.cpp b/boot/1.0/default/BootControl.cpp
index 4c34168..56d7b33 100644
--- a/boot/1.0/default/BootControl.cpp
+++ b/boot/1.0/default/BootControl.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #define LOG_TAG "android.hardware.boot@1.0-impl"
 #include <utils/Log.h>
 
diff --git a/boot/1.0/default/BootControl.h b/boot/1.0/default/BootControl.h
index be8a814..3d668dc 100644
--- a/boot/1.0/default/BootControl.h
+++ b/boot/1.0/default/BootControl.h
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 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_HARDWARE_BOOT_V1_0_BOOTCONTROL_H
 #define ANDROID_HARDWARE_BOOT_V1_0_BOOTCONTROL_H
 
diff --git a/boot/1.0/default/service.cpp b/boot/1.0/default/service.cpp
index a594db6..0dc56bf 100644
--- a/boot/1.0/default/service.cpp
+++ b/boot/1.0/default/service.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #define LOG_TAG "android.hardware.boot@1.0-service"
 
 #include <android/hardware/boot/1.0/IBootControl.h>
diff --git a/broadcastradio/1.0/default/BroadcastRadio.h b/broadcastradio/1.0/default/BroadcastRadio.h
index dbd6e07..6764d82 100644
--- a/broadcastradio/1.0/default/BroadcastRadio.h
+++ b/broadcastradio/1.0/default/BroadcastRadio.h
@@ -13,8 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef HIDL_GENERATED_android_hardware_broadcastradio_V1_0_BroadcastRadio_H_
-#define HIDL_GENERATED_android_hardware_broadcastradio_V1_0_BroadcastRadio_H_
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_0_BROADCASTRADIO_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_0_BROADCASTRADIO_H
 
 #include <android/hardware/broadcastradio/1.0/IBroadcastRadio.h>
 #include <hidl/Status.h>
@@ -68,4 +68,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_broadcastradio_V1_0_BroadcastRadio_H_
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_0_BROADCASTRADIO_H
diff --git a/broadcastradio/1.0/default/BroadcastRadioFactory.h b/broadcastradio/1.0/default/BroadcastRadioFactory.h
index 9b2ca17..97f7f55 100644
--- a/broadcastradio/1.0/default/BroadcastRadioFactory.h
+++ b/broadcastradio/1.0/default/BroadcastRadioFactory.h
@@ -13,8 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef HIDL_GENERATED_android_hardware_broadcastradio_V1_0_BroadcastRadioFactory_H_
-#define HIDL_GENERATED_android_hardware_broadcastradio_V1_0_BroadcastRadioFactory_H_
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_0_BROADCASTRADIOFACTORY_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_0_BROADCASTRADIOFACTORY_H
 
 #include <android/hardware/broadcastradio/1.0/IBroadcastRadioFactory.h>
 #include <hidl/Status.h>
@@ -40,4 +40,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_broadcastradio_V1_0_BroadcastRadioFactory_H_
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_0_BROADCASTRADIOFACTORY_H
diff --git a/broadcastradio/1.0/default/Tuner.h b/broadcastradio/1.0/default/Tuner.h
index 94e216e..a621d97 100644
--- a/broadcastradio/1.0/default/Tuner.h
+++ b/broadcastradio/1.0/default/Tuner.h
@@ -13,8 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef HIDL_GENERATED_android_hardware_broadcastradio_V1_0_Tuner_H_
-#define HIDL_GENERATED_android_hardware_broadcastradio_V1_0_Tuner_H_
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_0_TUNER_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_0_TUNER_H
 
 #include <android/hardware/broadcastradio/1.0/ITuner.h>
 #include <android/hardware/broadcastradio/1.0/ITunerCallback.h>
@@ -64,4 +64,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_broadcastradio_V1_0_Tuner_H_
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_0_TUNER_H
diff --git a/broadcastradio/1.0/types.hal b/broadcastradio/1.0/types.hal
index d04359c..d8b2da3 100644
--- a/broadcastradio/1.0/types.hal
+++ b/broadcastradio/1.0/types.hal
@@ -16,7 +16,7 @@
 
 package android.hardware.broadcastradio@1.0;
 
-enum Result {
+enum Result : int32_t {
     OK,
     NOT_INITIALIZED,
     INVALID_ARGUMENTS,
@@ -139,7 +139,7 @@
     vec<BandConfig> bands; /* band descriptors */
 };
 
-enum MetadataType {
+enum MetadataType : int32_t {
     INVALID    = -1,
     /* Signed 32 bit integer  */
     INT        = 0,
@@ -152,7 +152,7 @@
     CLOCK      = 3,
 };
 
-enum MetadataKey {
+enum MetadataKey : int32_t {
     INVALID      = -1,
     /* RDS PI                 - string  */
     RDS_PI       = 0,
diff --git a/contexthub/1.0/types.hal b/contexthub/1.0/types.hal
index 7d5a1ac..b9f014b 100644
--- a/contexthub/1.0/types.hal
+++ b/contexthub/1.0/types.hal
@@ -138,7 +138,7 @@
     RESTARTED = 1, // Hub restarted unexpectedly
 };
 
-enum TransactionResult {
+enum TransactionResult : int32_t {
     SUCCESS,      // successful completion of transaction
     FAILURE,      // failed transaction
 };
diff --git a/dumpstate/1.0/default/DumpstateDevice.cpp b/dumpstate/1.0/default/DumpstateDevice.cpp
index a279b89..4264235 100644
--- a/dumpstate/1.0/default/DumpstateDevice.cpp
+++ b/dumpstate/1.0/default/DumpstateDevice.cpp
@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #define LOG_TAG "dumpstate"
 
 #include "DumpstateDevice.h"
@@ -28,11 +44,9 @@
     ALOGI("Dumpstate HIDL not provided by device\n");
     dprintf(fd, "Dumpstate HIDL not provided by device; providing bogus data.\n");
 
-    // Shows some examples on how to use the libdumpstateutils API.
-    dprintf(fd, "Time now is: ");
-    RunCommandToFd(fd, {"/system/bin/date"});
-    dprintf(fd, "Contents of a small file (/system/etc/hosts):\n");
-    DumpFileToFd(fd, "/system/etc/hosts");
+    // Shows some examples on how to use the libdumpstateutil API.
+    RunCommandToFd(fd, "DATE", {"/system/bin/date"});
+    DumpFileToFd(fd, "HOSTS", "/system/etc/hosts");
 
     return Void();
 }
diff --git a/dumpstate/1.0/default/DumpstateDevice.h b/dumpstate/1.0/default/DumpstateDevice.h
index 6f860c0..f216304 100644
--- a/dumpstate/1.0/default/DumpstateDevice.h
+++ b/dumpstate/1.0/default/DumpstateDevice.h
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 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_HARDWARE_DUMPSTATE_V1_0_DUMPSTATEDEVICE_H
 #define ANDROID_HARDWARE_DUMPSTATE_V1_0_DUMPSTATEDEVICE_H
 
diff --git a/example/extension/light/2.0/default/Light.cpp b/example/extension/light/2.0/default/Light.cpp
index d738a6d..2e56319 100644
--- a/example/extension/light/2.0/default/Light.cpp
+++ b/example/extension/light/2.0/default/Light.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 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 "Light.h"
 
 namespace android {
diff --git a/example/extension/light/2.0/default/Light.h b/example/extension/light/2.0/default/Light.h
index e09ec92..e3b60df 100644
--- a/example/extension/light/2.0/default/Light.h
+++ b/example/extension/light/2.0/default/Light.h
@@ -1,5 +1,20 @@
-#ifndef HIDL_GENERATED_android_hardware_example_extension_light_V2_0_Light_H_
-#define HIDL_GENERATED_android_hardware_example_extension_light_V2_0_Light_H_
+/*
+ * Copyright (C) 2016 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_HARDWARE_EXAMPLE_EXTENSION_LIGHT_V2_0_LIGHT_H
+#define ANDROID_HARDWARE_EXAMPLE_EXTENSION_LIGHT_V2_0_LIGHT_H
 
 #include <android/hardware/example/extension/light/2.0/IExtLight.h>
 #include <hidl/Status.h>
@@ -43,4 +58,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_example_extension_light_V2_0_Light_H_
+#endif  // ANDROID_HARDWARE_EXAMPLE_EXTENSION_LIGHT_V2_0_LIGHT_H
diff --git a/example/extension/light/2.0/default/service.cpp b/example/extension/light/2.0/default/service.cpp
index d21afa6..ae00506 100644
--- a/example/extension/light/2.0/default/service.cpp
+++ b/example/extension/light/2.0/default/service.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #define LOG_TAG "android.hardware.light@2.0-service"
 
 #include <utils/Log.h>
diff --git a/gatekeeper/1.0/IGatekeeper.hal b/gatekeeper/1.0/IGatekeeper.hal
index 999a311..c193477 100644
--- a/gatekeeper/1.0/IGatekeeper.hal
+++ b/gatekeeper/1.0/IGatekeeper.hal
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 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.gatekeeper@1.0;
 
 interface IGatekeeper {
diff --git a/gatekeeper/1.0/default/Gatekeeper.cpp b/gatekeeper/1.0/default/Gatekeeper.cpp
index 8fcd8ca..35b8c02 100644
--- a/gatekeeper/1.0/default/Gatekeeper.cpp
+++ b/gatekeeper/1.0/default/Gatekeeper.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #define LOG_TAG "android.hardware.gatekeeper@1.0-service"
 
 #include <utils/Log.h>
diff --git a/gatekeeper/1.0/default/Gatekeeper.h b/gatekeeper/1.0/default/Gatekeeper.h
index a2188d4..4cc01f6 100644
--- a/gatekeeper/1.0/default/Gatekeeper.h
+++ b/gatekeeper/1.0/default/Gatekeeper.h
@@ -1,5 +1,20 @@
-#ifndef HIDL_GENERATED_android_hardware_gatekeeper_V1_0_Gatekeeper_H_
-#define HIDL_GENERATED_android_hardware_gatekeeper_V1_0_Gatekeeper_H_
+/*
+ * Copyright (C) 2016 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_HARDWARE_GATEKEEPER_V1_0_GATEKEEPER_H
+#define ANDROID_HARDWARE_GATEKEEPER_V1_0_GATEKEEPER_H
 
 #include <android/hardware/gatekeeper/1.0/IGatekeeper.h>
 #include <hidl/Status.h>
@@ -54,4 +69,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_gatekeeper_V1_0_Gatekeeper_H_
+#endif  // ANDROID_HARDWARE_GATEKEEPER_V1_0_GATEKEEPER_H
diff --git a/gatekeeper/1.0/default/service.cpp b/gatekeeper/1.0/default/service.cpp
index c3fc25c..407cf71 100644
--- a/gatekeeper/1.0/default/service.cpp
+++ b/gatekeeper/1.0/default/service.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #define LOG_TAG "android.hardware.gatekeeper@1.0-service"
 
 #include <android/hardware/gatekeeper/1.0/IGatekeeper.h>
diff --git a/gatekeeper/1.0/types.hal b/gatekeeper/1.0/types.hal
index 9ab1152..8c184ee 100644
--- a/gatekeeper/1.0/types.hal
+++ b/gatekeeper/1.0/types.hal
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 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.gatekeeper@1.0;
 
 /**
diff --git a/gnss/1.0/IAGnssRil.hal b/gnss/1.0/IAGnssRil.hal
index fb73498..7363d46 100644
--- a/gnss/1.0/IAGnssRil.hal
+++ b/gnss/1.0/IAGnssRil.hal
@@ -41,7 +41,7 @@
         WIMAX   = 6,
     };
 
-    enum AGnssRefLocationType {
+    enum AGnssRefLocationType : int32_t {
         GSM_CELLID   = 1,
         UMTS_CELLID  = 2,
         MAC          = 3,
diff --git a/health/1.0/default/Health.h b/health/1.0/default/Health.h
index c05751f..ed364c1 100644
--- a/health/1.0/default/Health.h
+++ b/health/1.0/default/Health.h
@@ -1,5 +1,20 @@
-#ifndef HIDL_GENERATED_android_hardware_health_V1_0_Health_H_
-#define HIDL_GENERATED_android_hardware_health_V1_0_Health_H_
+/*
+ * Copyright (C) 2016 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_HARDWARE_HEALTH_V1_0_HEALTH_H
+#define ANDROID_HARDWARE_HEALTH_V1_0_HEALTH_H
 
 #include <android/hardware/health/1.0/IHealth.h>
 #include <hidl/Status.h>
@@ -39,4 +54,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_health_V1_0_Health_H_
+#endif  // ANDROID_HARDWARE_HEALTH_V1_0_HEALTH_H
diff --git a/light/2.0/default/Light.cpp b/light/2.0/default/Light.cpp
index fe94e91..eb1f559 100644
--- a/light/2.0/default/Light.cpp
+++ b/light/2.0/default/Light.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 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 "Light.h"
 
 namespace android {
diff --git a/light/2.0/default/Light.h b/light/2.0/default/Light.h
index b32a09a..8987036 100644
--- a/light/2.0/default/Light.h
+++ b/light/2.0/default/Light.h
@@ -1,5 +1,20 @@
-#ifndef HIDL_GENERATED_android_hardware_light_V2_0_Light_H_
-#define HIDL_GENERATED_android_hardware_light_V2_0_Light_H_
+/*
+ * Copyright (C) 2016 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_HARDWARE_LIGHT_V2_0_LIGHT_H
+#define ANDROID_HARDWARE_LIGHT_V2_0_LIGHT_H
 
 #include <android/hardware/light/2.0/ILight.h>
 #include <hardware/hardware.h>
@@ -43,4 +58,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_light_V2_0_Light_H_
+#endif  // ANDROID_HARDWARE_LIGHT_V2_0_LIGHT_H
diff --git a/media/omx/1.0/IGraphicBufferSource.hal b/media/omx/1.0/IGraphicBufferSource.hal
index bee57ac..a5b5813 100644
--- a/media/omx/1.0/IGraphicBufferSource.hal
+++ b/media/omx/1.0/IGraphicBufferSource.hal
@@ -47,7 +47,7 @@
     setStartTimeUs(int64_t startTimeUs)
         generates (Status status);
 
-    setColorAspects(uint32_t aspects) // TODO: Maybe break down aspects.
+    setColorAspects(ColorAspects aspects)
         generates (Status status);
 
     setTimeOffsetUs(int64_t timeOffsetUs)
diff --git a/media/omx/1.0/types.hal b/media/omx/1.0/types.hal
index c0350de..5918b59 100644
--- a/media/omx/1.0/types.hal
+++ b/media/omx/1.0/types.hal
@@ -112,7 +112,7 @@
     /**
      * There are four main types of buffers.
      */
-    enum Type {
+    enum Type : int32_t {
         INVALID = 0,
         PRESET,
         SHARED_MEM,
@@ -164,7 +164,7 @@
  *
  * Enumeration of port modes.
  */
-enum PortMode {
+enum PortMode : int32_t {
     PRESET_START = 0,
     PRESET_BYTE_BUFFER,
     PRESET_ANW_BUFFER,
@@ -176,3 +176,71 @@
     DYNAMIC_END
 };
 
+/**
+ * Ref: frameworks/native/include/media/hardware/VideoAPI.h
+ *
+ * Framework defined color aspects. These are based mainly on ISO 23001-8 spec. As this standard
+ * continues to evolve, new values may be defined in the future. Use OTHER for these future values
+ * as well as for values not listed here, as those are not supported by the framework.
+ */
+struct ColorAspects {
+    enum Range : uint32_t {
+        UNSPECIFIED,  // Unspecified
+        FULL,         // Full range
+        LIMITED,      // Limited range (if defined), or not full range
+
+        OTHER = 0xff, // Not one of the above values
+    };
+
+    // Color primaries
+    enum Primaries : uint32_t {
+        UNSPECIFIED,  // Unspecified
+        BT709_5,      // Rec.ITU-R BT.709-5 or equivalent
+        BT470_6M,     // Rec.ITU-R BT.470-6 System M or equivalent
+        BT601_6_625,  // Rec.ITU-R BT.601-6 625 or equivalent
+        BT601_6_525,  // Rec.ITU-R BT.601-6 525 or equivalent
+        GENERIC_FILM, // Generic Film
+        BT2020,       // Rec.ITU-R BT.2020 or equivalent
+
+        OTHER = 0xff, // Not one of the above values
+    };
+
+    // Transfer characteristics
+    enum Transfer : uint32_t {
+        UNSPECIFIED,  // Unspecified
+        LINEAR,       // Linear transfer characteristics
+        SRGB,         // sRGB or equivalent
+        SMPTE170M,    // SMPTE 170M or equivalent (e.g. BT.601/709/2020)
+        GAMMA22,      // Assumed display gamma 2.2
+        GAMMA28,      // Assumed display gamma 2.8
+        ST2084,       // SMPTE ST 2084 for 10/12/14/16 bit systems
+        HLG,          // ARIB STD-B67 hybrid-log-gamma
+
+        // values unlikely to be required by Android follow here
+        SMPTE240M = 0x40, // SMPTE 240M
+        XVYCC,        // IEC 61966-2-4
+        BT1361,       // Rec.ITU-R BT.1361 extended gamut
+        ST428,        // SMPTE ST 428-1
+
+        OTHER = 0xff, // Not one of the above values
+    };
+
+    // YUV <-> RGB conversion
+    enum MatrixCoeffs : uint32_t {
+        UNSPECIFIED,    // Unspecified
+        BT709_5,        // Rec.ITU-R BT.709-5 or equivalent
+        BT470_6M,       // KR=0.30, KB=0.11 or equivalent
+        BT601_6,        // Rec.ITU-R BT.601-6 625 or equivalent
+        SMPTE240M,      // SMPTE 240M or equivalent
+        BT2020,         // Rec.ITU-R BT.2020 non-constant luminance
+        BT2020CONSTANT, // Rec.ITU-R BT.2020 constant luminance
+
+        OTHER = 0xff,   // Not one of the above values
+    };
+
+    Range range;
+    Primaries primaries;
+    Transfer transfer;
+    MatrixCoeffs matrixCoeffs;
+};
+
diff --git a/memtrack/1.0/default/Memtrack.h b/memtrack/1.0/default/Memtrack.h
index 86dae72..a3c55e4 100644
--- a/memtrack/1.0/default/Memtrack.h
+++ b/memtrack/1.0/default/Memtrack.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_memtrack_V1_0_Memtrack_H_
-#define HIDL_GENERATED_android_hardware_memtrack_V1_0_Memtrack_H_
+#ifndef ANDROID_HARDWARE_MEMTRACK_V1_0_MEMTRACK_H
+#define ANDROID_HARDWARE_MEMTRACK_V1_0_MEMTRACK_H
 
 #include <android/hardware/memtrack/1.0/IMemtrack.h>
 #include <hidl/Status.h>
@@ -54,4 +54,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_memtrack_V1_0_Memtrack_H_
+#endif  // ANDROID_HARDWARE_MEMTRACK_V1_0_MEMTRACK_H
diff --git a/nfc/1.0/INfc.hal b/nfc/1.0/INfc.hal
index 1c952db..c6e1511 100644
--- a/nfc/1.0/INfc.hal
+++ b/nfc/1.0/INfc.hal
@@ -27,72 +27,80 @@
      * NCI initialization - ie accept CORE_RESET and subsequent commands through
      * the write() call.
      *
-     * If open() returns 0, the NCI stack will wait for a NfcEvent.OPEN_CPLT
-     * before continuing.
+     * If open() returns NfcStatus::OK, the NCI stack will wait for a
+     * NfcEvent.OPEN_CPLT before continuing.
      *
-     * If open() returns any other value, the NCI stack will stop.
+     * If open() returns NfcStatus::FAILED, the NCI stack will stop.
      *
      */
     @entry
     @callflow(next={"write", "coreInitialized", "prediscover", "powerCycle", "controlGranted"})
-    open(INfcClientCallback clientCallback) generates (int32_t retval);
+    open(INfcClientCallback clientCallback) generates (NfcStatus status);
 
     /*
      * Performs an NCI write.
      *
      * This method may queue writes and return immediately. The only
      * requirement is that the writes are executed in order.
+     *
+     * @return number of bytes written to the NFCC
      */
     @callflow(next={"write", "prediscover", "coreInitialized", "close", "powerCycle",
                     "controlGranted"})
-    write(NfcData data) generates (int32_t retval);
+    write(NfcData data) generates (uint32_t retval);
 
     /*
-     * coreInitialized() is called after the CORE_INIT_RSP is received from the NFCC.
-     * At this time, the HAL can do any chip-specific configuration.
+     * coreInitialized() is called after the CORE_INIT_RSP is received from the
+     * NFCC. At this time, the HAL can do any chip-specific configuration.
      *
-     * If coreInitialized() returns 0, the NCI stack will wait for a NfcEvent.POST_INIT_CPLT
-     * before continuing.
+     * If coreInitialized() returns NfcStatus::OK, the NCI stack will wait for a
+     * NfcEvent.POST_INIT_CPLT before continuing.
      *
-     * If coreInitialized() returns any other value, the NCI stack will continue
-     * immediately.
+     * If coreInitialized() returns NfcStatus::FAILED, the NCI stack will
+     * continue immediately.
      */
     @callflow(next={"write", "prediscover", "close"})
-    coreInitialized(NfcData data) generates (int32_t retval);
+    coreInitialized(NfcData data) generates (NfcStatus status);
 
     /*
      * prediscover is called every time before starting RF discovery.
      * It is a good place to do vendor-specific configuration that must be
      * performed every time RF discovery is about to be started.
      *
-     * If prediscover() returns 0, the NCI stack will wait for a NfcEvent.PREDISCOVER_CPLT
-     * before continuing.
+     * If prediscover() returns NfcStatus::OK, the NCI stack will wait for a
+     * NfcEvent.PREDISCOVER_CPLT before continuing.
      *
-     * If prediscover() returns any other value, the NCI stack will start
+     * If prediscover() returns NfcStatus::FAILED, the NCI stack will start
      * RF discovery immediately.
      */
     @callflow(next={"write", "close", "coreInitialized", "powerCycle", "controlGranted"})
-    prediscover() generates (int32_t retval);
+    prediscover() generates (NfcStatus status);
 
     /*
      * Close the NFC controller. Should free all resources.
+     *
+     * @return NfcStatus::OK on success and NfcStatus::FAILED on error.
      */
     @exit
-    close() generates (int32_t retval);
+    close() generates (NfcStatus status);
 
     /*
      * Grant HAL the exclusive control to send NCI commands.
      * Called in response to NfcEvent.REQUEST_CONTROL.
      * Must only be called when there are no NCI commands pending.
      * NfcEvent.RELEASE_CONTROL will notify when HAL no longer needs exclusive control.
+     *
+     * @return NfcStatus::OK on success and NfcStatus::FAILED on error.
      */
     @callflow(next={"write", "close", "prediscover", "coreInitialized", "powerCycle"})
-    controlGranted() generates (int32_t retval);
+    controlGranted() generates (NfcStatus status);
 
      /*
      * Restart controller by power cyle;
      * NfcEvent.OPEN_CPLT will notify when operation is complete.
+     *
+     * @return NfcStatus::OK on success and NfcStatus::FAILED on error.
      */
     @callflow(next={"write", "coreInitialized", "prediscover", "controlGranted", "close"})
-    powerCycle() generates (int32_t retval);
+    powerCycle() generates (NfcStatus status);
 };
diff --git a/nfc/1.0/default/Nfc.cpp b/nfc/1.0/default/Nfc.cpp
index d3868c1..bee374d 100644
--- a/nfc/1.0/default/Nfc.cpp
+++ b/nfc/1.0/default/Nfc.cpp
@@ -17,34 +17,36 @@
 }
 
 // Methods from ::android::hardware::nfc::V1_0::INfc follow.
-::android::hardware::Return<int32_t> Nfc::open(const sp<INfcClientCallback>& clientCallback)  {
+::android::hardware::Return<NfcStatus> Nfc::open(const sp<INfcClientCallback>& clientCallback)  {
     mCallback = clientCallback;
-    return mDevice->open(mDevice, eventCallback, dataCallback);
+    int ret = mDevice->open(mDevice, eventCallback, dataCallback);
+    return ret == 0 ? NfcStatus::OK : NfcStatus::FAILED;
 }
 
-::android::hardware::Return<int32_t> Nfc::write(const hidl_vec<uint8_t>& data)  {
+::android::hardware::Return<uint32_t> Nfc::write(const hidl_vec<uint8_t>& data)  {
     return mDevice->write(mDevice, data.size(), &data[0]);
 }
 
-::android::hardware::Return<int32_t> Nfc::coreInitialized(const hidl_vec<uint8_t>& data)  {
+::android::hardware::Return<NfcStatus> Nfc::coreInitialized(const hidl_vec<uint8_t>& data)  {
     hidl_vec<uint8_t> copy = data;
-    return mDevice->core_initialized(mDevice, &copy[0]);
+    int ret = mDevice->core_initialized(mDevice, &copy[0]);
+    return ret == 0 ? NfcStatus::OK : NfcStatus::FAILED;
 }
 
-::android::hardware::Return<int32_t> Nfc::prediscover()  {
-    return mDevice->pre_discover(mDevice);
+::android::hardware::Return<NfcStatus> Nfc::prediscover()  {
+    return mDevice->pre_discover(mDevice) ? NfcStatus::FAILED : NfcStatus::OK;
 }
 
-::android::hardware::Return<int32_t> Nfc::close()  {
-    return mDevice->close(mDevice);
+::android::hardware::Return<NfcStatus> Nfc::close()  {
+    return mDevice->close(mDevice) ? NfcStatus::FAILED : NfcStatus::OK;
 }
 
-::android::hardware::Return<int32_t> Nfc::controlGranted()  {
-    return mDevice->control_granted(mDevice);
+::android::hardware::Return<NfcStatus> Nfc::controlGranted()  {
+    return mDevice->control_granted(mDevice) ? NfcStatus::FAILED : NfcStatus::OK;
 }
 
-::android::hardware::Return<int32_t> Nfc::powerCycle()  {
-    return mDevice->power_cycle(mDevice);
+::android::hardware::Return<NfcStatus> Nfc::powerCycle()  {
+    return mDevice->power_cycle(mDevice) ? NfcStatus::FAILED : NfcStatus::OK;
 }
 
 
diff --git a/nfc/1.0/default/Nfc.h b/nfc/1.0/default/Nfc.h
index 5257636..13004a5 100644
--- a/nfc/1.0/default/Nfc.h
+++ b/nfc/1.0/default/Nfc.h
@@ -21,13 +21,13 @@
 
 struct Nfc : public INfc {
   Nfc(nfc_nci_device_t* device);
-  ::android::hardware::Return<int32_t> open(const sp<INfcClientCallback>& clientCallback)  override;
-  ::android::hardware::Return<int32_t> write(const hidl_vec<uint8_t>& data)  override;
-  ::android::hardware::Return<int32_t> coreInitialized(const hidl_vec<uint8_t>& data)  override;
-  ::android::hardware::Return<int32_t> prediscover()  override;
-  ::android::hardware::Return<int32_t> close()  override;
-  ::android::hardware::Return<int32_t> controlGranted()  override;
-  ::android::hardware::Return<int32_t> powerCycle()  override;
+  ::android::hardware::Return<NfcStatus> open(const sp<INfcClientCallback>& clientCallback)  override;
+  ::android::hardware::Return<uint32_t> write(const hidl_vec<uint8_t>& data)  override;
+  ::android::hardware::Return<NfcStatus> coreInitialized(const hidl_vec<uint8_t>& data)  override;
+  ::android::hardware::Return<NfcStatus> prediscover()  override;
+  ::android::hardware::Return<NfcStatus> close()  override;
+  ::android::hardware::Return<NfcStatus> controlGranted()  override;
+  ::android::hardware::Return<NfcStatus> powerCycle()  override;
 
   static void eventCallback(uint8_t event, uint8_t status) {
       if (mCallback != nullptr) {
diff --git a/nfc/1.0/vts/Nfc.vts b/nfc/1.0/vts/Nfc.vts
index c2313d5..5882bf5 100644
--- a/nfc/1.0/vts/Nfc.vts
+++ b/nfc/1.0/vts/Nfc.vts
@@ -11,8 +11,8 @@
     api: {
         name: "open"
         return_type_hidl: {
-            type: TYPE_SCALAR
-            scalar_type: "int32_t"
+            type: TYPE_ENUM
+            predefined_type: "::android::hardware::nfc::V1_0::NfcStatus"
         }
         arg: {
             type: TYPE_HIDL_CALLBACK
@@ -35,7 +35,7 @@
         name: "write"
         return_type_hidl: {
             type: TYPE_SCALAR
-            scalar_type: "int32_t"
+            scalar_type: "uint32_t"
         }
         arg: {
             type: TYPE_VECTOR
@@ -57,8 +57,8 @@
     api: {
         name: "coreInitialized"
         return_type_hidl: {
-            type: TYPE_SCALAR
-            scalar_type: "int32_t"
+            type: TYPE_ENUM
+            predefined_type: "::android::hardware::nfc::V1_0::NfcStatus"
         }
         arg: {
             type: TYPE_VECTOR
@@ -77,8 +77,8 @@
     api: {
         name: "prediscover"
         return_type_hidl: {
-            type: TYPE_SCALAR
-            scalar_type: "int32_t"
+            type: TYPE_ENUM
+            predefined_type: "::android::hardware::nfc::V1_0::NfcStatus"
         }
         callflow: {
             next: "write"
@@ -92,8 +92,8 @@
     api: {
         name: "close"
         return_type_hidl: {
-            type: TYPE_SCALAR
-            scalar_type: "int32_t"
+            type: TYPE_ENUM
+            predefined_type: "::android::hardware::nfc::V1_0::NfcStatus"
         }
         callflow: {
             exit: true
@@ -103,8 +103,8 @@
     api: {
         name: "controlGranted"
         return_type_hidl: {
-            type: TYPE_SCALAR
-            scalar_type: "int32_t"
+            type: TYPE_ENUM
+            predefined_type: "::android::hardware::nfc::V1_0::NfcStatus"
         }
         callflow: {
             next: "write"
@@ -118,8 +118,8 @@
     api: {
         name: "powerCycle"
         return_type_hidl: {
-            type: TYPE_SCALAR
-            scalar_type: "int32_t"
+            type: TYPE_ENUM
+            predefined_type: "::android::hardware::nfc::V1_0::NfcStatus"
         }
         callflow: {
             next: "write"
diff --git a/nfc/1.0/vts/functional/nfc_hidl_hal_test.cpp b/nfc/1.0/vts/functional/nfc_hidl_hal_test.cpp
index e215704..4d7c557 100644
--- a/nfc/1.0/vts/functional/nfc_hidl_hal_test.cpp
+++ b/nfc/1.0/vts/functional/nfc_hidl_hal_test.cpp
@@ -17,63 +17,145 @@
 #define LOG_TAG "nfc_hidl_hal_test"
 #include <android-base/logging.h>
 
-#include <hardware/nfc.h>
-#include <android/hardware/nfc/1.0/types.h>
 #include <android/hardware/nfc/1.0/INfc.h>
 #include <android/hardware/nfc/1.0/INfcClientCallback.h>
+#include <android/hardware/nfc/1.0/types.h>
+#include <hardware/nfc.h>
+#include <hwbinder/ProcessState.h>
 
 #include <gtest/gtest.h>
+#include <chrono>
+#include <condition_variable>
+#include <mutex>
 
+using ::android::hardware::ProcessState;
 using ::android::hardware::nfc::V1_0::INfc;
 using ::android::hardware::nfc::V1_0::INfcClientCallback;
+using ::android::hardware::nfc::V1_0::NfcEvent;
+using ::android::hardware::nfc::V1_0::NfcStatus;
+using ::android::hardware::nfc::V1_0::NfcData;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
 using ::android::sp;
 
 #define NFC_NCI_SERVICE_NAME "nfc_nci"
 
+/* NCI Commands */
+#define CORE_RESET_CMD \
+  { 0x20, 0x00, 0x01, 0x00 }
+#define CORE_CONN_CREATE_CMD \
+  { 0x20, 0x04, 0x02, 0x01, 0x00 }
+#define INVALID_COMMAND \
+  { 0x20, 0x00, 0x00 }
+#define FAULTY_DATA_PACKET \
+  { 0x00, 0x00, 0xFF }
 
-// Simple NfcClientCallback used as part of testing.
-class NfcClientCallback : public INfcClientCallback {
-  public:
-   NfcClientCallback() {};
+#define LOOP_BACK_HEADER_SIZE 3
+#define SYNTAX_ERROR 5
+#define NUMBER_LOOPS 3922
+#define VERSION 0x11
+#define TIMEOUT_PERIOD 5
 
-   virtual ~NfcClientCallback() = default;
-
-   // sendEvent callback function - currently no-op.
-   Return<void> sendEvent(
-           ::android::hardware::nfc::V1_0::NfcEvent event,
-           ::android::hardware::nfc::V1_0::NfcStatus event_status) override {
-     return Void();
-   };
-
-   // sendData callback function - currently no-op.
-   Return<void> sendData(const ::android::hardware::nfc::V1_0::NfcData &data ) override {
-     ::android::hardware::nfc::V1_0::NfcData copy = data;
-     return Void();
-   };
-};
-
+static bool passthrough = true;
 
 // The main test class for NFC HIDL HAL.
 class NfcHidlTest : public ::testing::Test {
  public:
   virtual void SetUp() override {
-    // currently test passthrough mode only
-    nfc = INfc::getService(NFC_NCI_SERVICE_NAME, true);
-    ASSERT_NE(nfc, nullptr);
+    nfc_ = INfc::getService(NFC_NCI_SERVICE_NAME, passthrough);
+    ASSERT_NE(nfc_, nullptr);
 
-    nfc_cb = new NfcClientCallback();
-    ASSERT_NE(nfc_cb, nullptr);
+    // TODO:b/31748996
+    if (nfc_->isRemote()) {
+      ProcessState::self()->setThreadPoolMaxThreadCount(1);
+      ProcessState::self()->startThreadPool();
+    }
+
+    nfc_cb_ = new NfcClientCallback(*this);
+    ASSERT_NE(nfc_cb_, nullptr);
+
+    count = 0;
+    last_event_ = NfcEvent::ERROR;
+    last_status_ = NfcStatus::FAILED;
+
+    EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
+    // Wait for OPEN_CPLT event
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(NfcEvent::OPEN_CPLT, last_event_);
+    EXPECT_EQ(NfcStatus::OK, last_status_);
   }
 
-  virtual void TearDown() override {}
+  virtual void TearDown() override {
+    EXPECT_EQ(NfcStatus::OK, nfc_->close());
+    // Wait for CLOSE_CPLT event
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(NfcEvent::CLOSE_CPLT, last_event_);
+    EXPECT_EQ(NfcStatus::OK, last_status_);
+  }
 
-  sp<INfc> nfc;
-  sp<INfcClientCallback> nfc_cb;
+  /* Used as a mechanism to inform the test about data/event callback */
+  inline void notify() {
+    std::unique_lock<std::mutex> lock(mtx);
+    count++;
+    cv.notify_one();
+  }
+
+  /* Test code calls this function to wait for data/event callback */
+  inline std::cv_status wait() {
+    std::unique_lock<std::mutex> lock(mtx);
+
+    std::cv_status status = std::cv_status::no_timeout;
+    auto now = std::chrono::system_clock::now();
+    while (count == 0) {
+      status = cv.wait_until(lock, now + std::chrono::seconds(TIMEOUT_PERIOD));
+      if (status == std::cv_status::timeout) return status;
+    }
+    count--;
+    return status;
+  }
+
+  /* Callback class for data & Event. */
+  class NfcClientCallback : public INfcClientCallback {
+    NfcHidlTest& parent_;
+
+   public:
+    NfcClientCallback(NfcHidlTest& parent) : parent_(parent){};
+
+    virtual ~NfcClientCallback() = default;
+
+    /* sendEvent callback function - Records the Event & Status
+     * and notifies the TEST
+     **/
+    Return<void> sendEvent(NfcEvent event, NfcStatus event_status) override {
+      parent_.last_event_ = event;
+      parent_.last_status_ = event_status;
+      parent_.notify();
+      return Void();
+    };
+
+    /* sendData callback function. Records the data and notifies the TEST*/
+    Return<void> sendData(const NfcData& data) override {
+      size_t size = parent_.last_data_.size();
+      parent_.last_data_.resize(size + 1);
+      parent_.last_data_[size] = data;
+      parent_.notify();
+      return Void();
+    };
+  };
+
+  sp<INfc> nfc_;
+  sp<INfcClientCallback> nfc_cb_;
+  NfcEvent last_event_;
+  NfcStatus last_status_;
+  hidl_vec<NfcData> last_data_;
+
+ private:
+  std::mutex mtx;
+  std::condition_variable cv;
+  int count;
 };
 
-
 // A class for test environment setup (kept since this file is a template).
 class NfcHidlEnvironment : public ::testing::Environment {
  public:
@@ -83,15 +165,201 @@
  private:
 };
 
-TEST_F(NfcHidlTest, OpenAndClose) {
-  EXPECT_EQ(0, (int)nfc->open(nfc_cb));
-  EXPECT_EQ(0, (int)nfc->close());
+/*
+ * OpenAndClose:
+ * Makes an open call, waits for NfcEvent.OPEN_CPLT
+ * Immediately calls close() and waits for NfcEvent.CLOSE_CPLT
+ * Since open and close calls are a part of SetUp() and TearDown(),
+ * the function definition is intentionally kept empty
+ */
+TEST_F(NfcHidlTest, OpenAndClose) {}
+
+/*
+ * WriteCoreReset:
+ * Sends CORE_RESET_CMD
+ * Waits for CORE_RESET_RSP
+ * Checks the status and the version number
+ */
+TEST_F(NfcHidlTest, WriteCoreReset) {
+  std::vector<uint8_t> cmd = CORE_RESET_CMD;
+  NfcData data = cmd;
+  EXPECT_EQ(data.size(), nfc_->write(data));
+  // Wait for CORE_RESET_RSP
+  EXPECT_EQ(std::cv_status::no_timeout, wait());
+  EXPECT_EQ(1ul, last_data_.size());
+  EXPECT_EQ(6ul, last_data_[0].size());
+  EXPECT_EQ((int)NfcStatus::OK, last_data_[0][3]);
+  EXPECT_GE(VERSION, last_data_[0][4]);
 }
 
-int main(int argc, char **argv) {
+/*
+ * WriteInvalidCommand:
+ * Sends an invalid command
+ * Waits for response
+ * Checks SYNTAX_ERROR status
+ */
+TEST_F(NfcHidlTest, WriteInvalidCommand) {
+  // Send an Error Command
+  std::vector<uint8_t> cmd = INVALID_COMMAND;
+  NfcData data = cmd;
+  EXPECT_EQ(data.size(), nfc_->write(data));
+  // Wait for RSP
+  EXPECT_EQ(std::cv_status::no_timeout, wait());
+  EXPECT_EQ(1ul, last_data_.size());
+  EXPECT_EQ(4ul, last_data_[0].size());
+  EXPECT_EQ(SYNTAX_ERROR, last_data_[0][3]);
+}
+
+/*
+ * WriteInvalidAndThenValidCommand:
+ * Sends an Faulty Data Packet
+ * Waits for CORE_INTERFACE_ERROR_NTF
+ * Checks SYNTAX_ERROR status
+ * Repeat for 100 times appending 0xFF each time to the packet
+ * Send CORE_CONN_CREATE_CMD for loop-back mode
+ * Check the response
+ */
+TEST_F(NfcHidlTest, WriteInvalidAndThenValidCommand) {
+  // Send an Error Data Packet
+  std::vector<uint8_t> cmd = FAULTY_DATA_PACKET;
+  NfcData data = cmd;
+  size_t size = data.size();
+
+  for (int i = 0; i < 100; i++) {
+    last_data_.resize(0);
+    data.resize(++size);
+    data[size - 1] = 0xFF;
+    EXPECT_EQ(data.size(), nfc_->write(data));
+    // Wait for CORE_INTERFACE_ERROR_NTF
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(1ul, last_data_.size());
+    EXPECT_EQ(5ul, last_data_[0].size());
+    EXPECT_EQ(0x60, last_data_[0][0]);
+    EXPECT_EQ(0x08, last_data_[0][1]);
+    EXPECT_EQ(0x02, last_data_[0][2]);
+    EXPECT_EQ(SYNTAX_ERROR, last_data_[0][3]);
+  }
+
+  cmd = CORE_CONN_CREATE_CMD;
+  data = cmd;
+  last_data_.resize(0);
+  EXPECT_EQ(data.size(), nfc_->write(data));
+  // Wait for CORE_CONN_CREATE_RSP
+  EXPECT_EQ(std::cv_status::no_timeout, wait());
+  EXPECT_EQ(1ul, last_data_.size());
+  EXPECT_EQ(7ul, last_data_[0].size());
+  EXPECT_EQ((int)NfcStatus::OK, last_data_[0][3]);
+}
+/*
+ * Bandwidth:
+ * Sets the loop-back mode using CORE_CONN_CREATE_CMD
+ * Sends max payload size data
+ * Waits for the response
+ * Checks the data received
+ * Repeat to send total of 1Mb data
+ */
+TEST_F(NfcHidlTest, Bandwidth) {
+  std::vector<uint8_t> cmd = CORE_CONN_CREATE_CMD;
+  NfcData data = cmd;
+  EXPECT_EQ(data.size(), nfc_->write(data));
+  // Wait for CORE_CONN_CREATE_RSP
+  EXPECT_EQ(std::cv_status::no_timeout, wait());
+  EXPECT_EQ(1ul, last_data_.size());
+  EXPECT_EQ(7ul, last_data_[0].size());
+  EXPECT_EQ((int)NfcStatus::OK, last_data_[0][3]);
+  uint8_t conn_id = last_data_[0][6];
+  uint32_t max_payload_size = last_data_[0][4];
+
+  for (int loops = 0; loops < NUMBER_LOOPS; loops++) {
+    last_data_.resize(0);
+    data.resize(max_payload_size + LOOP_BACK_HEADER_SIZE);
+    data[0] = conn_id;
+    data[1] = 0x00;
+    data[2] = max_payload_size;
+    for (uint32_t i = 0; i < max_payload_size; i++) {
+      data[i + LOOP_BACK_HEADER_SIZE] = i;
+    }
+    EXPECT_EQ(max_payload_size + LOOP_BACK_HEADER_SIZE, nfc_->write(data));
+    // Wait for data and CORE_CONN_CREDITS_NTF
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    // Check if the same data was recieved back
+    EXPECT_EQ(2ul, last_data_.size());
+    EXPECT_EQ(data.size(), last_data_[0].size());
+    for (size_t i = 0; i < data.size(); i++) {
+      EXPECT_EQ(data[i], last_data_[0][i]);
+    }
+
+    EXPECT_EQ(6ul, last_data_[1].size());
+    // Check if the credit is refilled to 1
+    EXPECT_EQ(1, last_data_[1][5]);
+  }
+}
+
+/*
+ * PowerCycle:
+ * Calls powerCycle()
+ * Waits for NfcEvent.OPEN_CPLT
+ * Checks status
+ */
+TEST_F(NfcHidlTest, PowerCycle) {
+  EXPECT_EQ(NfcStatus::OK, nfc_->powerCycle());
+  // Wait for NfcEvent.OPEN_CPLT
+  EXPECT_EQ(std::cv_status::no_timeout, wait());
+  EXPECT_EQ(NfcEvent::OPEN_CPLT, last_event_);
+  EXPECT_EQ(NfcStatus::OK, last_status_);
+}
+
+/*
+ * CoreInitialized:
+ * Calls coreInitialized()
+ * Waits for NfcEvent.POST_INIT_CPLT
+ */
+TEST_F(NfcHidlTest, CoreInitialized) {
+  NfcData data;
+  data.resize(1);
+  data[0] = 0;
+  EXPECT_EQ(NfcStatus::OK, nfc_->coreInitialized(data));
+  // Wait for NfcEvent.POST_INIT_CPLT
+  EXPECT_EQ(std::cv_status::no_timeout, wait());
+  EXPECT_EQ(NfcEvent::POST_INIT_CPLT, last_event_);
+}
+
+/*
+ * ControlGranted:
+ * Calls controlGranted()
+ * Checks the return value
+ */
+TEST_F(NfcHidlTest, ControlGranted) {
+  EXPECT_EQ(NfcStatus::OK, nfc_->controlGranted());
+}
+
+/* PreDiscover:
+ * Calls prediscover()
+ * Checks the return value
+ */
+TEST_F(NfcHidlTest, PreDiscover) {
+  EXPECT_EQ(NfcStatus::OK, nfc_->prediscover());
+}
+
+int main(int argc, char** argv) {
   ::testing::AddGlobalTestEnvironment(new NfcHidlEnvironment);
   ::testing::InitGoogleTest(&argc, argv);
+
+  for (int i = 0; i < argc; i++) {
+    if (strstr(argv[i], "passthrough=false") != nullptr) {
+      passthrough = false;
+      break;
+    }
+  }
+  std::system("svc nfc disable"); /* Turn off NFC */
+  sleep(5);
+
   int status = RUN_ALL_TESTS();
   ALOGI("Test result = %d", status);
+
+  std::system("svc nfc enable"); /* Turn on NFC */
+  sleep(5);
+
   return status;
 }
diff --git a/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target_profiling/AndroidTest.xml b/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target_profiling/AndroidTest.xml
index e442c7c..11aa88f 100644
--- a/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target_profiling/AndroidTest.xml
+++ b/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target_profiling/AndroidTest.xml
@@ -18,14 +18,14 @@
         <option name="push-group" value="HidlHalTest.push" />
     </target_preparer>
     <target_preparer class="com.android.tradefed.targetprep.VtsPythonVirtualenvPreparer" />
-        <test class="com.android.tradefed.testtype.VtsMultiDeviceTest">
-            <option name="test-module-name" value="NfcHidlTargetProfilingTest" />
-            <option name="binary-test-sources" value="
-                _32bit::DATA/nativetest/nfc_hidl_hal_test/nfc_hidl_hal_test,
-                _64bit::DATA/nativetest64/nfc_hidl_hal_test/nfc_hidl_hal_test,
-                "/>
-            <option name="test-config-path" value="vts/testcases/hal/nfc/hidl/target_profiling/NfcHidlTargetProfilingTest.config" />
-            <option name="binary-test-type" value="gtest" />
-            <option name="test-timeout" value="1m" />
-        </test>
+    <test class="com.android.tradefed.testtype.VtsMultiDeviceTest">
+        <option name="test-module-name" value="NfcHidlTargetProfilingTest" />
+        <option name="binary-test-sources" value="
+            _32bit::DATA/nativetest/nfc_hidl_hal_test/nfc_hidl_hal_test,
+            _64bit::DATA/nativetest64/nfc_hidl_hal_test/nfc_hidl_hal_test,
+            "/>
+        <option name="binary-test-type" value="gtest" />
+        <option name="test-timeout" value="1m" />
+    <option name="enable-profiling" value="true" />
+    </test>
 </configuration>
diff --git a/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target_profiling/NfcHidlTargetProfilingTest.config b/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target_profiling/NfcHidlTargetProfilingTest.config
deleted file mode 100644
index 912d8d5..0000000
--- a/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target_profiling/NfcHidlTargetProfilingTest.config
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "enable_profiling": true
-}
\ No newline at end of file
diff --git a/power/1.0/default/Power.h b/power/1.0/default/Power.h
index a0495be..a43aefb 100644
--- a/power/1.0/default/Power.h
+++ b/power/1.0/default/Power.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_power_V1_0_Power_H_
-#define HIDL_GENERATED_android_hardware_power_V1_0_Power_H_
+#ifndef ANDROID_HARDWARE_POWER_V1_0_POWER_H
+#define ANDROID_HARDWARE_POWER_V1_0_POWER_H
 
 #include <android/hardware/power/1.0/IPower.h>
 #include <hidl/Status.h>
@@ -58,4 +58,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_power_V1_0_Power_H_
+#endif  // ANDROID_HARDWARE_POWER_V1_0_POWER_H
diff --git a/tests/baz/1.0/IBase.hal b/tests/baz/1.0/IBase.hal
index add4153..7f90f16 100644
--- a/tests/baz/1.0/IBase.hal
+++ b/tests/baz/1.0/IBase.hal
@@ -17,7 +17,7 @@
 package android.hardware.tests.baz@1.0;
 
 interface IBase {
-    enum SomeBaseEnum {
+    enum SomeBaseEnum : int32_t {
         grrr = 1,
     };
 
diff --git a/tests/expression/1.0/IExpression.hal b/tests/expression/1.0/IExpression.hal
index a44e03c..6eb5b2a 100644
--- a/tests/expression/1.0/IExpression.hal
+++ b/tests/expression/1.0/IExpression.hal
@@ -178,7 +178,7 @@
     MAX_PLUS_2 // 1
   };
 
-  enum Constants {
+  enum Constants : int32_t {
     CONST_FOO,
     CONST_BAR = 70,
     MAX_ARRAY_SIZE = 20,
diff --git a/thermal/1.0/default/Thermal.h b/thermal/1.0/default/Thermal.h
index 8212ab9..2e06289 100644
--- a/thermal/1.0/default/Thermal.h
+++ b/thermal/1.0/default/Thermal.h
@@ -1,5 +1,20 @@
-#ifndef HIDL_GENERATED_android_hardware_thermal_V1_0_Thermal_H_
-#define HIDL_GENERATED_android_hardware_thermal_V1_0_Thermal_H_
+/*
+ * Copyright (C) 2016 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_HARDWARE_THERMAL_V1_0_THERMAL_H
+#define ANDROID_HARDWARE_THERMAL_V1_0_THERMAL_H
 
 #include <android/hardware/thermal/1.0/IThermal.h>
 #include <hidl/Status.h>
@@ -42,4 +57,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_thermal_V1_0_Thermal_H_
+#endif  // ANDROID_HARDWARE_THERMAL_V1_0_THERMAL_H
diff --git a/thermal/1.0/vts/functional/vts/testcases/hal/thermal/hidl/target_profiling/AndroidTest.xml b/thermal/1.0/vts/functional/vts/testcases/hal/thermal/hidl/target_profiling/AndroidTest.xml
index 3790c56..46ae05a 100644
--- a/thermal/1.0/vts/functional/vts/testcases/hal/thermal/hidl/target_profiling/AndroidTest.xml
+++ b/thermal/1.0/vts/functional/vts/testcases/hal/thermal/hidl/target_profiling/AndroidTest.xml
@@ -24,9 +24,9 @@
             _32bit::DATA/nativetest/thermal_hidl_hal_test/thermal_hidl_hal_test,
             _64bit::DATA/nativetest64/thermal_hidl_hal_test/thermal_hidl_hal_test,
             "/>
-        <option name="test-config-path" value="vts/testcases/hal/thermal/hidl/target_profiling/ThermalHidlTargetProfilingTest.config" />
         <option name="binary-test-type" value="gtest" />
         <option name="test-timeout" value="5m" />
+        <option name="enable-profiling" value="true" />
     </test>
 </configuration>
 
diff --git a/thermal/1.0/vts/functional/vts/testcases/hal/thermal/hidl/target_profiling/ThermalHidlTargetProfilingTest.config b/thermal/1.0/vts/functional/vts/testcases/hal/thermal/hidl/target_profiling/ThermalHidlTargetProfilingTest.config
deleted file mode 100644
index 912d8d5..0000000
--- a/thermal/1.0/vts/functional/vts/testcases/hal/thermal/hidl/target_profiling/ThermalHidlTargetProfilingTest.config
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "enable_profiling": true
-}
\ No newline at end of file
diff --git a/tv/cec/1.0/default/HdmiCec.h b/tv/cec/1.0/default/HdmiCec.h
index a41a5f0..34a3bb0 100644
--- a/tv/cec/1.0/default/HdmiCec.h
+++ b/tv/cec/1.0/default/HdmiCec.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef HIDL_GENERATED_android_hardware_tv_cec_V1_0_HdmiCec_H_
-#define HIDL_GENERATED_android_hardware_tv_cec_V1_0_HdmiCec_H_
+#ifndef ANDROID_HARDWARE_TV_CEC_V1_0_HDMICEC_H
+#define ANDROID_HARDWARE_TV_CEC_V1_0_HDMICEC_H
 
 #include <algorithm>
 
@@ -101,4 +101,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_tv_cec_V1_0_HdmiCec_H_
+#endif  // ANDROID_HARDWARE_TV_CEC_V1_0_HDMICEC_H
diff --git a/tv/input/1.0/default/TvInput.h b/tv/input/1.0/default/TvInput.h
index 81cbb20..beb69f5 100644
--- a/tv/input/1.0/default/TvInput.h
+++ b/tv/input/1.0/default/TvInput.h
@@ -13,8 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef HIDL_GENERATED_android_hardware_tv_input_V1_0_TvInput_H_
-#define HIDL_GENERATED_android_hardware_tv_input_V1_0_TvInput_H_
+#ifndef ANDROID_HARDWARE_TV_INPUT_V1_0_TVINPUT_H
+#define ANDROID_HARDWARE_TV_INPUT_V1_0_TVINPUT_H
 
 #include <android/hardware/tv/input/1.0/ITvInput.h>
 #include <hidl/Status.h>
@@ -72,4 +72,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_tv_input_V1_0_TvInput_H_
+#endif  // ANDROID_HARDWARE_TV_INPUT_V1_0_TVINPUT_H
diff --git a/tv/input/1.0/types.hal b/tv/input/1.0/types.hal
index 89a7acc..6852c70 100644
--- a/tv/input/1.0/types.hal
+++ b/tv/input/1.0/types.hal
@@ -18,7 +18,7 @@
 
 import android.hardware.audio.common@2.0;
 
-enum Result {
+enum Result : int32_t {
     OK,
     UNKNOWN,
     NO_RESOURCE,
@@ -27,7 +27,7 @@
 };
 
 /* Type of physical TV input. */
-enum TvInputType {
+enum TvInputType : int32_t {
     OTHER = 1,         // Generic hardware.
     TUNER = 2,         // Tuner. e.g. built-in terrestrial tuner
     COMPOSITE = 3,
@@ -50,7 +50,7 @@
                               // must be filled with 0s.
 };
 
-enum TvInputEventType {
+enum TvInputEventType : int32_t {
     /*
      * Hardware notifies the framework that a device is available.
      *
diff --git a/vehicle/2.0/default/impl/DefaultConfig.h b/vehicle/2.0/default/impl/DefaultConfig.h
index 7985737..b1c49c8 100644
--- a/vehicle/2.0/default/impl/DefaultConfig.h
+++ b/vehicle/2.0/default/impl/DefaultConfig.h
@@ -128,6 +128,13 @@
     },
 
     {
+        .prop = VehicleProperty::DRIVING_STATUS,
+        .access = VehiclePropertyAccess::READ,
+        .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+        .permissionModel = VehiclePermissionModel::NO_RESTRICTION,
+    },
+
+    {
         .prop = VehicleProperty::GEAR_SELECTION,
         .access = VehiclePropertyAccess::READ,
         .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
diff --git a/vehicle/2.0/default/impl/DefaultVehicleHal.cpp b/vehicle/2.0/default/impl/DefaultVehicleHal.cpp
index c56248b..5054cfe 100644
--- a/vehicle/2.0/default/impl/DefaultVehicleHal.cpp
+++ b/vehicle/2.0/default/impl/DefaultVehicleHal.cpp
@@ -81,6 +81,9 @@
         case VehicleProperty::GEAR_SELECTION:
             v = pool.obtainInt32(toInt(VehicleGear::GEAR_PARK));
             break;
+        case VehicleProperty::DRIVING_STATUS:
+            v = pool.obtainInt32(toInt(VehicleDrivingStatus::UNRESTRICTED));
+            break;
         default:
             *outStatus = StatusCode::INVALID_ARG;
     }
diff --git a/vehicle/2.0/types.hal b/vehicle/2.0/types.hal
index b19621c..0e0e3ea 100644
--- a/vehicle/2.0/types.hal
+++ b/vehicle/2.0/types.hal
@@ -2073,7 +2073,7 @@
 
     METER_PER_SEC  = 0x01,
     RPM            = 0x02,
-    HZ             = 0x03,
+    HERTZ          = 0x03,
     PERCENTILE     = 0x10,
     MILLIMETER     = 0x20,
     METER          = 0x21,
@@ -2430,7 +2430,7 @@
 };
 
 
-enum SubscribeFlags {
+enum SubscribeFlags : int32_t {
   UNDEFINED = 0x0,
 
   /*
@@ -2477,7 +2477,7 @@
 };
 
 /* Error codes used in vehicle HAL interface. */
-enum StatusCode {
+enum StatusCode : int32_t {
   OK = 0,
 
   /* Try again. */
diff --git a/vibrator/1.0/default/Vibrator.h b/vibrator/1.0/default/Vibrator.h
index 36c4cc1..061b364 100644
--- a/vibrator/1.0/default/Vibrator.h
+++ b/vibrator/1.0/default/Vibrator.h
@@ -13,8 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef HIDL_GENERATED_android_hardware_vibrator_V1_0_Vibrator_H_
-#define HIDL_GENERATED_android_hardware_vibrator_V1_0_Vibrator_H_
+#ifndef ANDROID_HARDWARE_VIBRATOR_V1_0_VIBRATOR_H
+#define ANDROID_HARDWARE_VIBRATOR_V1_0_VIBRATOR_H
 
 #include <android/hardware/vibrator/1.0/IVibrator.h>
 #include <hidl/Status.h>
@@ -53,4 +53,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_vibrator_V1_0_Vibrator_H_
+#endif  // ANDROID_HARDWARE_VIBRATOR_V1_0_VIBRATOR_H
diff --git a/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/host_profiling/AndroidTest.xml b/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/host_profiling/AndroidTest.xml
index 713e9d0..54830f0 100644
--- a/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/host_profiling/AndroidTest.xml
+++ b/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/host_profiling/AndroidTest.xml
@@ -24,6 +24,6 @@
     <test class="com.android.tradefed.testtype.VtsMultiDeviceTest">
         <option name="test-module-name" value="VibratorHidlProfilingTest" />
         <option name="test-case-path" value="vts/testcases/hal/vibrator/hidl/host/VibratorHidlTest" />
-        <option name="test-config-path" value="vts/testcases/hal/vibrator/hidl/host_profiling/VibratorHidlProfilingTest.config" />
+        <option name="enable-profiling" value="true" />
     </test>
 </configuration>
diff --git a/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/host_profiling/VibratorHidlProfilingTest.config b/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/host_profiling/VibratorHidlProfilingTest.config
deleted file mode 100644
index 912d8d5..0000000
--- a/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/host_profiling/VibratorHidlProfilingTest.config
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "enable_profiling": true
-}
\ No newline at end of file
diff --git a/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/target_profiling/AndroidTest.xml b/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/target_profiling/AndroidTest.xml
index addd67e..4643e23 100644
--- a/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/target_profiling/AndroidTest.xml
+++ b/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/target_profiling/AndroidTest.xml
@@ -24,9 +24,9 @@
             _32bit::DATA/nativetest/vibrator_hidl_hal_test/vibrator_hidl_hal_test,
             _64bit::DATA/nativetest64/vibrator_hidl_hal_test/vibrator_hidl_hal_test,
             "/>
-        <option name="test-config-path" value="vts/testcases/hal/vibrator/hidl/target_profiling/VibratorHidlTargetProfilingTest.config" />
         <option name="binary-test-type" value="gtest" />
         <option name="test-timeout" value="1m" />
+        <option name="enable-profiling" value="true" />
     </test>
 </configuration>
 
diff --git a/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/target_profiling/VibratorHidlTargetProfilingTest.config b/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/target_profiling/VibratorHidlTargetProfilingTest.config
deleted file mode 100644
index 912d8d5..0000000
--- a/vibrator/1.0/vts/functional/vts/testcases/hal/vibrator/hidl/target_profiling/VibratorHidlTargetProfilingTest.config
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "enable_profiling": true
-}
\ No newline at end of file
diff --git a/vr/1.0/default/Vr.h b/vr/1.0/default/Vr.h
index 90694d9..dd5e764 100644
--- a/vr/1.0/default/Vr.h
+++ b/vr/1.0/default/Vr.h
@@ -13,8 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef HIDL_GENERATED_android_hardware_vr_V1_0_Vr_H_
-#define HIDL_GENERATED_android_hardware_vr_V1_0_Vr_H_
+#ifndef ANDROID_HARDWARE_VR_V1_0_VR_H
+#define ANDROID_HARDWARE_VR_V1_0_VR_H
 
 #include <android/hardware/vr/1.0/IVr.h>
 #include <hardware/vr.h>
@@ -48,4 +48,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_vr_V1_0_Vr_H_
+#endif  // ANDROID_HARDWARE_VR_V1_0_VR_H
diff --git a/wifi/1.0/default/wifi_legacy_hal.cpp b/wifi/1.0/default/wifi_legacy_hal.cpp
index 15b6bfc..560a273 100644
--- a/wifi/1.0/default/wifi_legacy_hal.cpp
+++ b/wifi/1.0/default/wifi_legacy_hal.cpp
@@ -36,6 +36,8 @@
 static constexpr uint32_t kMaxCachedGscanResults = 64;
 static constexpr uint32_t kMaxGscanFrequenciesForBand = 64;
 static constexpr uint32_t kLinkLayerStatsDataMpduSizeThreshold = 128;
+static constexpr uint32_t kMaxWakeReasonStatsArraySize = 32;
+static constexpr uint32_t kMaxRingBuffers = 10;
 
 // Legacy HAL functions accept "C" style function pointers, so use global
 // functions to pass to the legacy HAL function and store the corresponding
@@ -97,6 +99,141 @@
   }
 }
 
+// Callback to be invoked for ring buffer data indication.
+std::function<void(char*, char*, int, wifi_ring_buffer_status*)>
+    on_ring_buffer_data_internal_callback;
+void onRingBufferData(char* ring_name,
+                      char* buffer,
+                      int buffer_size,
+                      wifi_ring_buffer_status* status) {
+  if (on_ring_buffer_data_internal_callback) {
+    on_ring_buffer_data_internal_callback(
+        ring_name, buffer, buffer_size, status);
+  }
+}
+
+// Callback to be invoked for rtt results results.
+std::function<void(
+    wifi_request_id, unsigned num_results, wifi_rtt_result* rtt_results[])>
+    on_rtt_results_internal_callback;
+void onRttResults(wifi_request_id id,
+                  unsigned num_results,
+                  wifi_rtt_result* rtt_results[]) {
+  if (on_rtt_results_internal_callback) {
+    on_rtt_results_internal_callback(id, num_results, rtt_results);
+  }
+}
+
+// Callbacks for the various NAN operations.
+// NOTE: These have very little conversions to perform before invoking the user
+// callbacks.
+// So, handle all of them here directly to avoid adding an unnecessary layer.
+std::function<void(transaction_id, const NanResponseMsg&)>
+    on_nan_notify_response_user_callback;
+void onNanNotifyResponse(transaction_id id, NanResponseMsg* msg) {
+  if (on_nan_notify_response_user_callback && msg) {
+    on_nan_notify_response_user_callback(id, *msg);
+  }
+}
+
+std::function<void(const NanPublishTerminatedInd&)>
+    on_nan_event_publish_terminated_user_callback;
+void onNanEventPublishTerminated(NanPublishTerminatedInd* event) {
+  if (on_nan_event_publish_terminated_user_callback && event) {
+    on_nan_event_publish_terminated_user_callback(*event);
+  }
+}
+
+std::function<void(const NanMatchInd&)> on_nan_event_match_user_callback;
+void onNanEventMatch(NanMatchInd* event) {
+  if (on_nan_event_match_user_callback && event) {
+    on_nan_event_match_user_callback(*event);
+  }
+}
+
+std::function<void(const NanMatchExpiredInd&)>
+    on_nan_event_match_expired_user_callback;
+void onNanEventMatchExpired(NanMatchExpiredInd* event) {
+  if (on_nan_event_match_expired_user_callback && event) {
+    on_nan_event_match_expired_user_callback(*event);
+  }
+}
+
+std::function<void(const NanSubscribeTerminatedInd&)>
+    on_nan_event_subscribe_terminated_user_callback;
+void onNanEventSubscribeTerminated(NanSubscribeTerminatedInd* event) {
+  if (on_nan_event_subscribe_terminated_user_callback && event) {
+    on_nan_event_subscribe_terminated_user_callback(*event);
+  }
+}
+
+std::function<void(const NanFollowupInd&)> on_nan_event_followup_user_callback;
+void onNanEventFollowup(NanFollowupInd* event) {
+  if (on_nan_event_followup_user_callback && event) {
+    on_nan_event_followup_user_callback(*event);
+  }
+}
+
+std::function<void(const NanDiscEngEventInd&)>
+    on_nan_event_disc_eng_event_user_callback;
+void onNanEventDiscEngEvent(NanDiscEngEventInd* event) {
+  if (on_nan_event_disc_eng_event_user_callback && event) {
+    on_nan_event_disc_eng_event_user_callback(*event);
+  }
+}
+
+std::function<void(const NanDisabledInd&)> on_nan_event_disabled_user_callback;
+void onNanEventDisabled(NanDisabledInd* event) {
+  if (on_nan_event_disabled_user_callback && event) {
+    on_nan_event_disabled_user_callback(*event);
+  }
+}
+
+std::function<void(const NanTCAInd&)> on_nan_event_tca_user_callback;
+void onNanEventTca(NanTCAInd* event) {
+  if (on_nan_event_tca_user_callback && event) {
+    on_nan_event_tca_user_callback(*event);
+  }
+}
+
+std::function<void(const NanBeaconSdfPayloadInd&)>
+    on_nan_event_beacon_sdf_payload_user_callback;
+void onNanEventBeaconSdfPayload(NanBeaconSdfPayloadInd* event) {
+  if (on_nan_event_beacon_sdf_payload_user_callback && event) {
+    on_nan_event_beacon_sdf_payload_user_callback(*event);
+  }
+}
+
+std::function<void(const NanDataPathRequestInd&)>
+    on_nan_event_data_path_request_user_callback;
+void onNanEventDataPathRequest(NanDataPathRequestInd* event) {
+  if (on_nan_event_data_path_request_user_callback && event) {
+    on_nan_event_data_path_request_user_callback(*event);
+  }
+}
+std::function<void(const NanDataPathConfirmInd&)>
+    on_nan_event_data_path_confirm_user_callback;
+void onNanEventDataPathConfirm(NanDataPathConfirmInd* event) {
+  if (on_nan_event_data_path_confirm_user_callback && event) {
+    on_nan_event_data_path_confirm_user_callback(*event);
+  }
+}
+
+std::function<void(const NanDataPathEndInd&)>
+    on_nan_event_data_path_end_user_callback;
+void onNanEventDataPathEnd(NanDataPathEndInd* event) {
+  if (on_nan_event_data_path_end_user_callback && event) {
+    on_nan_event_data_path_end_user_callback(*event);
+  }
+}
+
+std::function<void(const NanTransmitFollowupInd&)>
+    on_nan_event_transmit_follow_up_user_callback;
+void onNanEventTransmitFollowUp(NanTransmitFollowupInd* event) {
+  if (on_nan_event_transmit_follow_up_user_callback && event) {
+    on_nan_event_transmit_follow_up_user_callback(*event);
+  }
+}
 // End of the free-standing "C" style callbacks.
 
 WifiLegacyHal::WifiLegacyHal()
@@ -402,6 +539,406 @@
   return {status, link_stats};
 }
 
+std::pair<wifi_error, uint32_t> WifiLegacyHal::getLoggerSupportedFeatureSet() {
+  uint32_t supported_features;
+  wifi_error status = global_func_table_.wifi_get_logger_supported_feature_set(
+      wlan_interface_handle_, &supported_features);
+  return {status, supported_features};
+}
+
+wifi_error WifiLegacyHal::startPktFateMonitoring() {
+  return global_func_table_.wifi_start_pkt_fate_monitoring(
+      wlan_interface_handle_);
+}
+
+std::pair<wifi_error, std::vector<wifi_tx_report>>
+WifiLegacyHal::getTxPktFates() {
+  std::vector<wifi_tx_report> tx_pkt_fates;
+  tx_pkt_fates.resize(MAX_FATE_LOG_LEN);
+  size_t num_fates = 0;
+  wifi_error status =
+      global_func_table_.wifi_get_tx_pkt_fates(wlan_interface_handle_,
+                                               tx_pkt_fates.data(),
+                                               tx_pkt_fates.size(),
+                                               &num_fates);
+  CHECK(num_fates <= MAX_FATE_LOG_LEN);
+  tx_pkt_fates.resize(num_fates);
+  return {status, std::move(tx_pkt_fates)};
+}
+
+std::pair<wifi_error, std::vector<wifi_rx_report>>
+WifiLegacyHal::getRxPktFates() {
+  std::vector<wifi_rx_report> rx_pkt_fates;
+  rx_pkt_fates.resize(MAX_FATE_LOG_LEN);
+  size_t num_fates = 0;
+  wifi_error status =
+      global_func_table_.wifi_get_rx_pkt_fates(wlan_interface_handle_,
+                                               rx_pkt_fates.data(),
+                                               rx_pkt_fates.size(),
+                                               &num_fates);
+  CHECK(num_fates <= MAX_FATE_LOG_LEN);
+  rx_pkt_fates.resize(num_fates);
+  return {status, std::move(rx_pkt_fates)};
+}
+
+std::pair<wifi_error, WakeReasonStats> WifiLegacyHal::getWakeReasonStats() {
+  WakeReasonStats stats;
+  stats.cmd_event_wake_cnt.resize(kMaxWakeReasonStatsArraySize);
+  stats.driver_fw_local_wake_cnt.resize(kMaxWakeReasonStatsArraySize);
+
+  // This legacy struct needs separate memory to store the variable sized wake
+  // reason types.
+  stats.wake_reason_cnt.cmd_event_wake_cnt =
+      reinterpret_cast<int32_t*>(stats.cmd_event_wake_cnt.data());
+  stats.wake_reason_cnt.cmd_event_wake_cnt_sz = stats.cmd_event_wake_cnt.size();
+  stats.wake_reason_cnt.cmd_event_wake_cnt_used = 0;
+  stats.wake_reason_cnt.driver_fw_local_wake_cnt =
+      reinterpret_cast<int32_t*>(stats.driver_fw_local_wake_cnt.data());
+  stats.wake_reason_cnt.driver_fw_local_wake_cnt_sz =
+      stats.driver_fw_local_wake_cnt.size();
+  stats.wake_reason_cnt.driver_fw_local_wake_cnt_used = 0;
+
+  wifi_error status = global_func_table_.wifi_get_wake_reason_stats(
+      wlan_interface_handle_, &stats.wake_reason_cnt);
+
+  CHECK(stats.wake_reason_cnt.cmd_event_wake_cnt_used >= 0 &&
+        static_cast<uint32_t>(stats.wake_reason_cnt.cmd_event_wake_cnt_used) <=
+            kMaxWakeReasonStatsArraySize);
+  stats.cmd_event_wake_cnt.resize(
+      stats.wake_reason_cnt.cmd_event_wake_cnt_used);
+  stats.wake_reason_cnt.cmd_event_wake_cnt = nullptr;
+
+  CHECK(stats.wake_reason_cnt.driver_fw_local_wake_cnt_used >= 0 &&
+        static_cast<uint32_t>(
+            stats.wake_reason_cnt.driver_fw_local_wake_cnt_used) <=
+            kMaxWakeReasonStatsArraySize);
+  stats.driver_fw_local_wake_cnt.resize(
+      stats.wake_reason_cnt.driver_fw_local_wake_cnt_used);
+  stats.wake_reason_cnt.driver_fw_local_wake_cnt = nullptr;
+
+  return {status, stats};
+}
+
+wifi_error WifiLegacyHal::registerRingBufferCallbackHandler(
+    const on_ring_buffer_data_callback& on_user_data_callback) {
+  if (on_ring_buffer_data_internal_callback) {
+    return WIFI_ERROR_NOT_AVAILABLE;
+  }
+  on_ring_buffer_data_internal_callback = [on_user_data_callback](
+      char* ring_name,
+      char* buffer,
+      int buffer_size,
+      wifi_ring_buffer_status* status) {
+    if (status && buffer) {
+      std::vector<uint8_t> buffer_vector(
+          reinterpret_cast<uint8_t*>(buffer),
+          reinterpret_cast<uint8_t*>(buffer) + buffer_size);
+      on_user_data_callback(ring_name, buffer_vector, *status);
+    }
+  };
+  return global_func_table_.wifi_set_log_handler(
+      0, wlan_interface_handle_, {onRingBufferData});
+}
+
+std::pair<wifi_error, std::vector<wifi_ring_buffer_status>>
+WifiLegacyHal::getRingBuffersStatus() {
+  std::vector<wifi_ring_buffer_status> ring_buffers_status;
+  ring_buffers_status.resize(kMaxRingBuffers);
+  uint32_t num_rings = 0;
+  wifi_error status = global_func_table_.wifi_get_ring_buffers_status(
+      wlan_interface_handle_, &num_rings, ring_buffers_status.data());
+  CHECK(num_rings <= kMaxRingBuffers);
+  ring_buffers_status.resize(num_rings);
+  return {status, std::move(ring_buffers_status)};
+}
+
+wifi_error WifiLegacyHal::startRingBufferLogging(const std::string& ring_name,
+                                                 uint32_t verbose_level,
+                                                 uint32_t max_interval_sec,
+                                                 uint32_t min_data_size) {
+  std::vector<char> ring_name_internal(ring_name.begin(), ring_name.end());
+  return global_func_table_.wifi_start_logging(wlan_interface_handle_,
+                                               verbose_level,
+                                               0,
+                                               max_interval_sec,
+                                               min_data_size,
+                                               ring_name_internal.data());
+}
+
+wifi_error WifiLegacyHal::getRingBufferData(const std::string& ring_name) {
+  std::vector<char> ring_name_internal(ring_name.begin(), ring_name.end());
+  return global_func_table_.wifi_get_ring_data(wlan_interface_handle_,
+                                               ring_name_internal.data());
+}
+
+wifi_error WifiLegacyHal::startRttRangeRequest(
+    wifi_request_id id,
+    const std::vector<wifi_rtt_config>& rtt_configs,
+    const on_rtt_results_callback& on_results_user_callback) {
+  if (on_rtt_results_internal_callback) {
+    return WIFI_ERROR_NOT_AVAILABLE;
+  }
+
+  on_rtt_results_internal_callback = [on_results_user_callback](
+      wifi_request_id id,
+      unsigned num_results,
+      wifi_rtt_result* rtt_results[]) {
+    if (num_results > 0 && !rtt_results) {
+      LOG(ERROR) << "Unexpected nullptr in RTT results";
+      return;
+    }
+    std::vector<const wifi_rtt_result*> rtt_results_vec;
+    std::copy_if(
+        rtt_results,
+        rtt_results + num_results,
+        back_inserter(rtt_results_vec),
+        [](wifi_rtt_result* rtt_result) { return rtt_result != nullptr; });
+    on_results_user_callback(id, rtt_results_vec);
+  };
+
+  std::vector<wifi_rtt_config> rtt_configs_internal(rtt_configs);
+  return global_func_table_.wifi_rtt_range_request(id,
+                                                   wlan_interface_handle_,
+                                                   rtt_configs.size(),
+                                                   rtt_configs_internal.data(),
+                                                   {onRttResults});
+}
+
+wifi_error WifiLegacyHal::cancelRttRangeRequest(
+    wifi_request_id id, const std::vector<std::array<uint8_t, 6>>& mac_addrs) {
+  if (!on_rtt_results_internal_callback) {
+    return WIFI_ERROR_NOT_AVAILABLE;
+  }
+  static_assert(sizeof(mac_addr) == sizeof(std::array<uint8_t, 6>),
+                "MAC address size mismatch");
+  // TODO: How do we handle partial cancels (i.e only a subset of enabled mac
+  // addressed are cancelled).
+  std::vector<std::array<uint8_t, 6>> mac_addrs_internal(mac_addrs);
+  wifi_error status = global_func_table_.wifi_rtt_range_cancel(
+      id,
+      wlan_interface_handle_,
+      mac_addrs.size(),
+      reinterpret_cast<mac_addr*>(mac_addrs_internal.data()));
+  // If the request Id is wrong, don't stop the ongoing range request. Any
+  // other error should be treated as the end of rtt ranging.
+  if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
+    on_rtt_results_internal_callback = nullptr;
+  }
+  return status;
+}
+
+std::pair<wifi_error, wifi_rtt_capabilities>
+WifiLegacyHal::getRttCapabilities() {
+  wifi_rtt_capabilities rtt_caps;
+  wifi_error status = global_func_table_.wifi_get_rtt_capabilities(
+      wlan_interface_handle_, &rtt_caps);
+  return {status, rtt_caps};
+}
+
+std::pair<wifi_error, wifi_rtt_responder> WifiLegacyHal::getRttResponderInfo() {
+  wifi_rtt_responder rtt_responder;
+  wifi_error status = global_func_table_.wifi_rtt_get_responder_info(
+      wlan_interface_handle_, &rtt_responder);
+  return {status, rtt_responder};
+}
+
+wifi_error WifiLegacyHal::enableRttResponder(
+    wifi_request_id id,
+    const wifi_channel_info& channel_hint,
+    uint32_t max_duration_secs,
+    const wifi_rtt_responder& info) {
+  wifi_rtt_responder info_internal(info);
+  return global_func_table_.wifi_enable_responder(id,
+                                                  wlan_interface_handle_,
+                                                  channel_hint,
+                                                  max_duration_secs,
+                                                  &info_internal);
+}
+
+wifi_error WifiLegacyHal::disableRttResponder(wifi_request_id id) {
+  return global_func_table_.wifi_disable_responder(id, wlan_interface_handle_);
+}
+
+wifi_error WifiLegacyHal::setRttLci(wifi_request_id id,
+                                    const wifi_lci_information& info) {
+  wifi_lci_information info_internal(info);
+  return global_func_table_.wifi_set_lci(
+      id, wlan_interface_handle_, &info_internal);
+}
+
+wifi_error WifiLegacyHal::setRttLcr(wifi_request_id id,
+                                    const wifi_lcr_information& info) {
+  wifi_lcr_information info_internal(info);
+  return global_func_table_.wifi_set_lcr(
+      id, wlan_interface_handle_, &info_internal);
+}
+
+wifi_error WifiLegacyHal::nanRegisterCallbackHandlers(
+    const NanCallbackHandlers& user_callbacks) {
+  on_nan_notify_response_user_callback = user_callbacks.on_notify_response;
+  on_nan_event_publish_terminated_user_callback =
+      user_callbacks.on_event_publish_terminated;
+  on_nan_event_match_user_callback = user_callbacks.on_event_match;
+  on_nan_event_match_expired_user_callback =
+      user_callbacks.on_event_match_expired;
+  on_nan_event_subscribe_terminated_user_callback =
+      user_callbacks.on_event_subscribe_terminated;
+  on_nan_event_followup_user_callback = user_callbacks.on_event_followup;
+  on_nan_event_disc_eng_event_user_callback =
+      user_callbacks.on_event_disc_eng_event;
+  on_nan_event_disabled_user_callback = user_callbacks.on_event_disabled;
+  on_nan_event_tca_user_callback = user_callbacks.on_event_tca;
+  on_nan_event_beacon_sdf_payload_user_callback =
+      user_callbacks.on_event_beacon_sdf_payload;
+  on_nan_event_data_path_request_user_callback =
+      user_callbacks.on_event_data_path_request;
+  on_nan_event_data_path_confirm_user_callback =
+      user_callbacks.on_event_data_path_confirm;
+  on_nan_event_data_path_end_user_callback =
+      user_callbacks.on_event_data_path_end;
+  on_nan_event_transmit_follow_up_user_callback =
+      user_callbacks.on_event_transmit_follow_up;
+
+  return global_func_table_.wifi_nan_register_handler(
+      wlan_interface_handle_,
+      {onNanNotifyResponse,
+       onNanEventPublishTerminated,
+       onNanEventMatch,
+       onNanEventMatchExpired,
+       onNanEventSubscribeTerminated,
+       onNanEventFollowup,
+       onNanEventDiscEngEvent,
+       onNanEventDisabled,
+       onNanEventTca,
+       onNanEventBeaconSdfPayload,
+       onNanEventDataPathRequest,
+       onNanEventDataPathConfirm,
+       onNanEventDataPathEnd,
+       onNanEventTransmitFollowUp});
+}
+
+wifi_error WifiLegacyHal::nanEnableRequest(transaction_id id,
+                                           const NanEnableRequest& msg) {
+  NanEnableRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_enable_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanDisableRequest(transaction_id id) {
+  return global_func_table_.wifi_nan_disable_request(id,
+                                                     wlan_interface_handle_);
+}
+
+wifi_error WifiLegacyHal::nanPublishRequest(transaction_id id,
+                                            const NanPublishRequest& msg) {
+  NanPublishRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_publish_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanPublishCancelRequest(
+    transaction_id id, const NanPublishCancelRequest& msg) {
+  NanPublishCancelRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_publish_cancel_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanSubscribeRequest(transaction_id id,
+                                              const NanSubscribeRequest& msg) {
+  NanSubscribeRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_subscribe_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanSubscribeCancelRequest(
+    transaction_id id, const NanSubscribeCancelRequest& msg) {
+  NanSubscribeCancelRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_subscribe_cancel_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanTransmitFollowupRequest(
+    transaction_id id, const NanTransmitFollowupRequest& msg) {
+  NanTransmitFollowupRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_transmit_followup_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanStatsRequest(transaction_id id,
+                                          const NanStatsRequest& msg) {
+  NanStatsRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_stats_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanConfigRequest(transaction_id id,
+                                           const NanConfigRequest& msg) {
+  NanConfigRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_config_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanTcaRequest(transaction_id id,
+                                        const NanTCARequest& msg) {
+  NanTCARequest msg_internal(msg);
+  return global_func_table_.wifi_nan_tca_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanBeaconSdfPayloadRequest(
+    transaction_id id, const NanBeaconSdfPayloadRequest& msg) {
+  NanBeaconSdfPayloadRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_beacon_sdf_payload_request(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+std::pair<wifi_error, NanVersion> WifiLegacyHal::nanGetVersion() {
+  NanVersion version;
+  wifi_error status =
+      global_func_table_.wifi_nan_get_version(global_handle_, &version);
+  return {status, version};
+}
+
+wifi_error WifiLegacyHal::nanGetCapabilities(transaction_id id) {
+  return global_func_table_.wifi_nan_get_capabilities(id,
+                                                      wlan_interface_handle_);
+}
+
+wifi_error WifiLegacyHal::nanDataInterfaceCreate(
+    transaction_id id, const std::string& iface_name) {
+  std::vector<char> iface_name_internal(iface_name.begin(), iface_name.end());
+  return global_func_table_.wifi_nan_data_interface_create(
+      id, wlan_interface_handle_, iface_name_internal.data());
+}
+
+wifi_error WifiLegacyHal::nanDataInterfaceDelete(
+    transaction_id id, const std::string& iface_name) {
+  std::vector<char> iface_name_internal(iface_name.begin(), iface_name.end());
+  return global_func_table_.wifi_nan_data_interface_delete(
+      id, wlan_interface_handle_, iface_name_internal.data());
+}
+
+wifi_error WifiLegacyHal::nanDataRequestInitiator(
+    transaction_id id, const NanDataPathInitiatorRequest& msg) {
+  NanDataPathInitiatorRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_data_request_initiator(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanDataIndicationResponse(
+    transaction_id id, const NanDataPathIndicationResponse& msg) {
+  NanDataPathIndicationResponse msg_internal(msg);
+  return global_func_table_.wifi_nan_data_indication_response(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
+wifi_error WifiLegacyHal::nanDataEnd(transaction_id id,
+                                     const NanDataPathEndRequest& msg) {
+  NanDataPathEndRequest msg_internal(msg);
+  return global_func_table_.wifi_nan_data_end(
+      id, wlan_interface_handle_, &msg_internal);
+}
+
 wifi_error WifiLegacyHal::retrieveWlanInterfaceHandle() {
   const std::string& ifname_to_find = getStaIfaceName();
   wifi_interface_handle* iface_handles = nullptr;
@@ -479,6 +1016,22 @@
   on_gscan_event_internal_callback = nullptr;
   on_gscan_full_result_internal_callback = nullptr;
   on_link_layer_stats_result_internal_callback = nullptr;
+  on_ring_buffer_data_internal_callback = nullptr;
+  on_rtt_results_internal_callback = nullptr;
+  on_nan_notify_response_user_callback = nullptr;
+  on_nan_event_publish_terminated_user_callback = nullptr;
+  on_nan_event_match_user_callback = nullptr;
+  on_nan_event_match_expired_user_callback = nullptr;
+  on_nan_event_subscribe_terminated_user_callback = nullptr;
+  on_nan_event_followup_user_callback = nullptr;
+  on_nan_event_disc_eng_event_user_callback = nullptr;
+  on_nan_event_disabled_user_callback = nullptr;
+  on_nan_event_tca_user_callback = nullptr;
+  on_nan_event_beacon_sdf_payload_user_callback = nullptr;
+  on_nan_event_data_path_request_user_callback = nullptr;
+  on_nan_event_data_path_confirm_user_callback = nullptr;
+  on_nan_event_data_path_end_user_callback = nullptr;
+  on_nan_event_transmit_follow_up_user_callback = nullptr;
 }
 
 }  // namespace legacy_hal
diff --git a/wifi/1.0/default/wifi_legacy_hal.h b/wifi/1.0/default/wifi_legacy_hal.h
index df1c3d6..62b773e 100644
--- a/wifi/1.0/default/wifi_legacy_hal.h
+++ b/wifi/1.0/default/wifi_legacy_hal.h
@@ -54,6 +54,41 @@
 };
 #pragma GCC diagnostic pop
 
+// The |WLAN_DRIVER_WAKE_REASON_CNT.cmd_event_wake_cnt| and
+// |WLAN_DRIVER_WAKE_REASON_CNT.driver_fw_local_wake_cnt| stats is provided
+// as a pointer in |WLAN_DRIVER_WAKE_REASON_CNT| structure in the legacy HAL
+// API. Separate that out into a separate return elements to avoid passing
+// pointers around.
+struct WakeReasonStats {
+  WLAN_DRIVER_WAKE_REASON_CNT wake_reason_cnt;
+  std::vector<uint32_t> cmd_event_wake_cnt;
+  std::vector<uint32_t> driver_fw_local_wake_cnt;
+};
+
+// NAN response and event callbacks struct.
+struct NanCallbackHandlers {
+  // NotifyResponse invoked to notify the status of the Request.
+  std::function<void(transaction_id, const NanResponseMsg&)> on_notify_response;
+  // Various event callbacks.
+  std::function<void(const NanPublishTerminatedInd&)>
+      on_event_publish_terminated;
+  std::function<void(const NanMatchInd&)> on_event_match;
+  std::function<void(const NanMatchExpiredInd&)> on_event_match_expired;
+  std::function<void(const NanSubscribeTerminatedInd&)>
+      on_event_subscribe_terminated;
+  std::function<void(const NanFollowupInd&)> on_event_followup;
+  std::function<void(const NanDiscEngEventInd&)> on_event_disc_eng_event;
+  std::function<void(const NanDisabledInd&)> on_event_disabled;
+  std::function<void(const NanTCAInd&)> on_event_tca;
+  std::function<void(const NanBeaconSdfPayloadInd&)>
+      on_event_beacon_sdf_payload;
+  std::function<void(const NanDataPathRequestInd&)> on_event_data_path_request;
+  std::function<void(const NanDataPathConfirmInd&)> on_event_data_path_confirm;
+  std::function<void(const NanDataPathEndInd&)> on_event_data_path_end;
+  std::function<void(const NanTransmitFollowupInd&)>
+      on_event_transmit_follow_up;
+};
+
 // Full scan results contain IE info and are hence passed by reference, to
 // preserve the variable length array member |ie_data|. Callee must not retain
 // the pointer.
@@ -64,6 +99,19 @@
 using on_gscan_results_callback = std::function<void(
     wifi_request_id, const std::vector<wifi_cached_scan_results>&)>;
 
+// Callback for RTT range request results.
+// Rtt results contain IE info and are hence passed by reference, to
+// preserve the |LCI| and |LCR| pointers. Callee must not retain
+// the pointer.
+using on_rtt_results_callback = std::function<void(
+    wifi_request_id, const std::vector<const wifi_rtt_result*>&)>;
+
+// Callback for ring buffer data.
+using on_ring_buffer_data_callback =
+    std::function<void(const std::string&,
+                       const std::vector<uint8_t>&,
+                       const wifi_ring_buffer_status&)>;
+
 /**
  * Class that encapsulates all legacy HAL interactions.
  * This class manages the lifetime of the event loop thread used by legacy HAL.
@@ -115,6 +163,66 @@
   wifi_error enableLinkLayerStats(bool debug);
   wifi_error disableLinkLayerStats();
   std::pair<wifi_error, LinkLayerStats> getLinkLayerStats();
+  // Logger/debug functions.
+  std::pair<wifi_error, uint32_t> getLoggerSupportedFeatureSet();
+  wifi_error startPktFateMonitoring();
+  std::pair<wifi_error, std::vector<wifi_tx_report>> getTxPktFates();
+  std::pair<wifi_error, std::vector<wifi_rx_report>> getRxPktFates();
+  std::pair<wifi_error, WakeReasonStats> getWakeReasonStats();
+  wifi_error registerRingBufferCallbackHandler(
+      const on_ring_buffer_data_callback& on_data_callback);
+  std::pair<wifi_error, std::vector<wifi_ring_buffer_status>>
+  getRingBuffersStatus();
+  wifi_error startRingBufferLogging(const std::string& ring_name,
+                                    uint32_t verbose_level,
+                                    uint32_t max_interval_sec,
+                                    uint32_t min_data_size);
+  wifi_error getRingBufferData(const std::string& ring_name);
+  // RTT functions.
+  wifi_error startRttRangeRequest(
+      wifi_request_id id,
+      const std::vector<wifi_rtt_config>& rtt_configs,
+      const on_rtt_results_callback& on_results_callback);
+  wifi_error cancelRttRangeRequest(
+      wifi_request_id id, const std::vector<std::array<uint8_t, 6>>& mac_addrs);
+  std::pair<wifi_error, wifi_rtt_capabilities> getRttCapabilities();
+  std::pair<wifi_error, wifi_rtt_responder> getRttResponderInfo();
+  wifi_error enableRttResponder(wifi_request_id id,
+                                const wifi_channel_info& channel_hint,
+                                uint32_t max_duration_secs,
+                                const wifi_rtt_responder& info);
+  wifi_error disableRttResponder(wifi_request_id id);
+  wifi_error setRttLci(wifi_request_id id, const wifi_lci_information& info);
+  wifi_error setRttLcr(wifi_request_id id, const wifi_lcr_information& info);
+  // NAN functions.
+  wifi_error nanRegisterCallbackHandlers(const NanCallbackHandlers& callbacks);
+  wifi_error nanEnableRequest(transaction_id id, const NanEnableRequest& msg);
+  wifi_error nanDisableRequest(transaction_id id);
+  wifi_error nanPublishRequest(transaction_id id, const NanPublishRequest& msg);
+  wifi_error nanPublishCancelRequest(transaction_id id,
+                                     const NanPublishCancelRequest& msg);
+  wifi_error nanSubscribeRequest(transaction_id id,
+                                 const NanSubscribeRequest& msg);
+  wifi_error nanSubscribeCancelRequest(transaction_id id,
+                                       const NanSubscribeCancelRequest& msg);
+  wifi_error nanTransmitFollowupRequest(transaction_id id,
+                                        const NanTransmitFollowupRequest& msg);
+  wifi_error nanStatsRequest(transaction_id id, const NanStatsRequest& msg);
+  wifi_error nanConfigRequest(transaction_id id, const NanConfigRequest& msg);
+  wifi_error nanTcaRequest(transaction_id id, const NanTCARequest& msg);
+  wifi_error nanBeaconSdfPayloadRequest(transaction_id id,
+                                        const NanBeaconSdfPayloadRequest& msg);
+  std::pair<wifi_error, NanVersion> nanGetVersion();
+  wifi_error nanGetCapabilities(transaction_id id);
+  wifi_error nanDataInterfaceCreate(transaction_id id,
+                                    const std::string& iface_name);
+  wifi_error nanDataInterfaceDelete(transaction_id id,
+                                    const std::string& iface_name);
+  wifi_error nanDataRequestInitiator(transaction_id id,
+                                     const NanDataPathInitiatorRequest& msg);
+  wifi_error nanDataIndicationResponse(
+      transaction_id id, const NanDataPathIndicationResponse& msg);
+  wifi_error nanDataEnd(transaction_id id, const NanDataPathEndRequest& msg);
 
  private:
   // Retrieve the interface handle to be used for the "wlan" interface.
diff --git a/wifi/1.0/types.hal b/wifi/1.0/types.hal
index 066662c..9e53377 100644
--- a/wifi/1.0/types.hal
+++ b/wifi/1.0/types.hal
@@ -486,7 +486,7 @@
 /**
  * Mask of flags set in the |ScanData| instance.
  */
-enum StaScanDataFlagMask {
+enum StaScanDataFlagMask : int32_t {
   /**
    * Indicates that a scan was interrupted/did not occur so results may be
    * incomplete.