diff --git a/audio/7.0/IDevice.hal b/audio/7.0/IDevice.hal
index 7082d6b..eecd92e 100644
--- a/audio/7.0/IDevice.hal
+++ b/audio/7.0/IDevice.hal
@@ -315,7 +315,6 @@
      *                INVALID_STATE if the device was already closed
      *                or there are streams currently opened.
      */
-    @exit
     close() generates (Result retval);
 
     /**
diff --git a/audio/7.0/IStream.hal b/audio/7.0/IStream.hal
index dacd3fd..789cb1d 100644
--- a/audio/7.0/IStream.hal
+++ b/audio/7.0/IStream.hal
@@ -44,13 +44,6 @@
     getBufferSize() generates (uint64_t bufferSize);
 
     /**
-     * Return the sampling rate in Hz.
-     *
-     * @return sampleRateHz sample rate in Hz.
-     */
-    getSampleRate() generates (uint32_t sampleRateHz);
-
-    /**
      * Return supported native sampling rates of the stream for a given format.
      * A supported native sample rate is a sample rate that can be efficiently
      * played by the hardware (typically without sample-rate conversions).
@@ -72,23 +65,6 @@
             generates (Result retval, vec<uint32_t> sampleRates);
 
     /**
-     * Sets the sampling rate of the stream. Calling this method is equivalent
-     * to setting AUDIO_PARAMETER_STREAM_SAMPLING_RATE on the legacy HAL.
-     * Optional method. If implemented, only called on a stopped stream.
-     *
-     * @param sampleRateHz sample rate in Hz.
-     * @return retval operation completion status.
-     */
-    setSampleRate(uint32_t sampleRateHz) generates (Result retval);
-
-    /**
-     * Return the channel mask of the stream.
-     *
-     * @return mask channel mask.
-     */
-    getChannelMask() generates (bitfield<AudioChannelMask> mask);
-
-    /**
      * Return supported channel masks of the stream. Calling this method is
      * equivalent to getting AUDIO_PARAMETER_STREAM_SUP_CHANNELS on the legacy
      * HAL.
@@ -99,24 +75,7 @@
      * @return masks supported audio masks.
      */
     getSupportedChannelMasks(AudioFormat format)
-            generates (Result retval, vec<bitfield<AudioChannelMask>> masks);
-
-    /**
-     * Sets the channel mask of the stream. Calling this method is equivalent to
-     * setting AUDIO_PARAMETER_STREAM_CHANNELS on the legacy HAL.
-     * Optional method
-     *
-     * @param format audio format.
-     * @return retval operation completion status.
-     */
-    setChannelMask(bitfield<AudioChannelMask> mask) generates (Result retval);
-
-    /**
-     * Return the audio format of the stream.
-     *
-     * @return format audio format.
-     */
-    getFormat() generates (AudioFormat format);
+            generates (Result retval, vec<vec<AudioChannelMask>> masks);
 
     /**
      * Return supported audio formats of the stream. Calling this method is
@@ -130,25 +89,23 @@
     getSupportedFormats() generates (Result retval, vec<AudioFormat> formats);
 
     /**
-     * Sets the audio format of the stream. Calling this method is equivalent to
-     * setting AUDIO_PARAMETER_STREAM_FORMAT on the legacy HAL.
-     * Optional method
+     * Retrieves basic stream configuration: sample rate, audio format,
+     * channel mask.
      *
-     * @param format audio format.
-     * @return retval operation completion status.
+     * @return config basic stream configuration.
      */
-    setFormat(AudioFormat format) generates (Result retval);
+    getAudioProperties() generates (AudioBasicConfig config);
 
     /**
-     * Convenience method for retrieving several stream parameters in
-     * one transaction.
+     * Sets stream parameters. Only sets parameters that are specified.
+     * See the description of AudioBasicConfig for the details.
      *
-     * @return sampleRateHz sample rate in Hz.
-     * @return mask channel mask.
-     * @return format audio format.
+     * Optional method. If implemented, only called on a stopped stream.
+     *
+     * @param config basic stream configuration.
+     * @return retval operation completion status.
      */
-    getAudioProperties() generates (
-            uint32_t sampleRateHz, bitfield<AudioChannelMask> mask, AudioFormat format);
+    setAudioProperties(AudioBasicConfig config) generates (Result retval);
 
     /**
      * Applies audio effect to the stream.
@@ -312,6 +269,5 @@
      *                              output stream interface.
      *                INVALID_STATE if the stream was already closed.
      */
-    @exit
     close() generates (Result retval);
 };
diff --git a/audio/7.0/IStreamIn.hal b/audio/7.0/IStreamIn.hal
index 15e4363..0a3f24b 100644
--- a/audio/7.0/IStreamIn.hal
+++ b/audio/7.0/IStreamIn.hal
@@ -100,7 +100,7 @@
      *
      * The driver operates on a dedicated thread. The client must ensure that
      * the thread is given an appropriate priority and assigned to correct
-     * scheduler and cgroup. For this purpose, the method returns identifiers
+     * scheduler and cgroup. For this purpose, the method returns the identifier
      * of the driver thread.
      *
      * @param frameSize the size of a single frame, in bytes.
@@ -115,7 +115,9 @@
      *                specified at the stream opening.
      * @return statusMQ a message queue used for passing status from the driver
      *                  using ReadStatus structures.
-     * @return threadInfo identifiers of the driver's dedicated thread.
+     * @return threadId identifier of the driver's dedicated thread; the caller
+     *                  may adjust the thread priority to match the priority
+     *                  of the thread that provides audio data.
      */
     prepareForReading(uint32_t frameSize, uint32_t framesCount)
     generates (
@@ -123,7 +125,7 @@
             fmq_sync<ReadParameters> commandMQ,
             fmq_sync<uint8_t> dataMQ,
             fmq_sync<ReadStatus> statusMQ,
-            ThreadInfo threadInfo);
+            int32_t threadId);
 
     /**
      * Return the amount of input frames lost in the audio driver since the last
diff --git a/audio/7.0/IStreamOut.hal b/audio/7.0/IStreamOut.hal
index 208beb6..38d750f 100644
--- a/audio/7.0/IStreamOut.hal
+++ b/audio/7.0/IStreamOut.hal
@@ -95,7 +95,7 @@
      *
      * The driver operates on a dedicated thread. The client must ensure that
      * the thread is given an appropriate priority and assigned to correct
-     * scheduler and cgroup. For this purpose, the method returns identifiers
+     * scheduler and cgroup. For this purpose, the method returns the identifier
      * of the driver thread.
      *
      * @param frameSize the size of a single frame, in bytes.
@@ -109,7 +109,9 @@
      *                specified at the stream opening.
      * @return statusMQ a message queue used for passing status from the driver
      *                  using WriteStatus structures.
-     * @return threadInfo identifiers of the driver's dedicated thread.
+     * @return threadId identifier of the driver's dedicated thread; the caller
+     *                  may adjust the thread priority to match the priority
+     *                  of the thread that provides audio data.
      */
     prepareForWriting(uint32_t frameSize, uint32_t framesCount)
     generates (
@@ -117,7 +119,7 @@
             fmq_sync<WriteCommand> commandMQ,
             fmq_sync<uint8_t> dataMQ,
             fmq_sync<WriteStatus> statusMQ,
-            ThreadInfo threadInfo);
+            int32_t threadId);
 
     /**
      * Return the number of audio frames written by the audio DSP to DAC since
diff --git a/audio/7.0/config/api/current.txt b/audio/7.0/config/api/current.txt
index 98c5eac..fd9a8ef 100644
--- a/audio/7.0/config/api/current.txt
+++ b/audio/7.0/config/api/current.txt
@@ -6,6 +6,81 @@
     method public java.util.List<java.lang.String> getItem();
   }
 
+  public enum AudioChannelMask {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_10;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_11;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_12;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_13;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_14;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_15;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_16;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_17;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_18;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_19;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_20;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_21;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_22;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_23;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_24;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_3;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_4;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_5;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_6;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_7;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_8;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_INDEX_MASK_9;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_2POINT0POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_2POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_3POINT0POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_3POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_5POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_6;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_FRONT_BACK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_STEREO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_CALL_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT0POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_3POINT0POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_3POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1POINT4;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1_BACK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_5POINT1_SIDE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_6POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1POINT2;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_7POINT1POINT4;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_HAPTIC_AB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_MONO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_MONO_HAPTIC_A;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_MONO_HAPTIC_AB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_PENTA;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD_BACK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_QUAD_SIDE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_STEREO_HAPTIC_AB;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_SURROUND;
+  }
+
+  public enum AudioContentType {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_MOVIE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_MUSIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_SONIFICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_SPEECH;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioContentType AUDIO_CONTENT_TYPE_UNKNOWN;
+  }
+
   public enum AudioDevice {
     method public String getRawName();
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_AMBIENT;
@@ -116,6 +191,7 @@
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_APTX_HD;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_APTX_TWSP;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_CELT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DEFAULT;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DOLBY_TRUEHD;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DSD;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_DTS;
@@ -164,18 +240,59 @@
     method public void setVersion(audio.policy.configuration.V7_0.Version);
   }
 
+  public enum AudioSource {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_CAMCORDER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_DEFAULT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_ECHO_REFERENCE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_FM_TUNER;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_HOTWORD;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_MIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_REMOTE_SUBMIX;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_UNPROCESSED;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_CALL;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_COMMUNICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_DOWNLINK;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_PERFORMANCE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_RECOGNITION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioSource AUDIO_SOURCE_VOICE_UPLINK;
+  }
+
+  public enum AudioStreamType {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_ACCESSIBILITY;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_ALARM;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_ASSISTANT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_BLUETOOTH_SCO;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_DTMF;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_ENFORCED_AUDIBLE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_MUSIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_NOTIFICATION;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_PATCH;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_REROUTING;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_RING;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_SYSTEM;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_TTS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioStreamType AUDIO_STREAM_VOICE_CALL;
+  }
+
   public enum AudioUsage {
     method public String getRawName();
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ALARM;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ANNOUNCEMENT;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ASSISTANCE_SONIFICATION;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_ASSISTANT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_CALL_ASSISTANT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_EMERGENCY;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_GAME;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_MEDIA;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_NOTIFICATION;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_SAFETY;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_UNKNOWN;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_VEHICLE_STATUS;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_VIRTUAL_SOURCE;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_VOICE_COMMUNICATION;
     enum_constant public static final audio.policy.configuration.V7_0.AudioUsage AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING;
@@ -234,7 +351,7 @@
 
   public static class Gains.Gain {
     ctor public Gains.Gain();
-    method public String getChannel_mask();
+    method public audio.policy.configuration.V7_0.AudioChannelMask getChannel_mask();
     method public int getDefaultValueMB();
     method public int getMaxRampMs();
     method public int getMaxValueMB();
@@ -244,7 +361,7 @@
     method public String getName();
     method public int getStepValueMB();
     method public boolean getUseForVolume();
-    method public void setChannel_mask(String);
+    method public void setChannel_mask(audio.policy.configuration.V7_0.AudioChannelMask);
     method public void setDefaultValueMB(int);
     method public void setMaxRampMs(int);
     method public void setMaxValueMB(int);
@@ -327,14 +444,14 @@
 
   public class Profile {
     ctor public Profile();
-    method public String getChannelMasks();
+    method public java.util.List<audio.policy.configuration.V7_0.AudioChannelMask> getChannelMasks();
     method public String getFormat();
     method public String getName();
-    method public String getSamplingRates();
-    method public void setChannelMasks(String);
+    method public java.util.List<java.math.BigInteger> getSamplingRates();
+    method public void setChannelMasks(java.util.List<audio.policy.configuration.V7_0.AudioChannelMask>);
     method public void setFormat(String);
     method public void setName(String);
-    method public void setSamplingRates(String);
+    method public void setSamplingRates(java.util.List<java.math.BigInteger>);
   }
 
   public class Reference {
@@ -365,24 +482,6 @@
     method public void setType(audio.policy.configuration.V7_0.MixType);
   }
 
-  public enum Stream {
-    method public String getRawName();
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_ACCESSIBILITY;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_ALARM;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_ASSISTANT;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_BLUETOOTH_SCO;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_DTMF;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_ENFORCED_AUDIBLE;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_MUSIC;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_NOTIFICATION;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_PATCH;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_REROUTING;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_RING;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_SYSTEM;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_TTS;
-    enum_constant public static final audio.policy.configuration.V7_0.Stream AUDIO_STREAM_VOICE_CALL;
-  }
-
   public class SurroundFormats {
     ctor public SurroundFormats();
     method public java.util.List<audio.policy.configuration.V7_0.SurroundFormats.Format> getFormat();
@@ -412,10 +511,10 @@
     method public audio.policy.configuration.V7_0.DeviceCategory getDeviceCategory();
     method public java.util.List<java.lang.String> getPoint();
     method public String getRef();
-    method public audio.policy.configuration.V7_0.Stream getStream();
+    method public audio.policy.configuration.V7_0.AudioStreamType getStream();
     method public void setDeviceCategory(audio.policy.configuration.V7_0.DeviceCategory);
     method public void setRef(String);
-    method public void setStream(audio.policy.configuration.V7_0.Stream);
+    method public void setStream(audio.policy.configuration.V7_0.AudioStreamType);
   }
 
   public class Volumes {
diff --git a/audio/7.0/config/audio_policy_configuration.xsd b/audio/7.0/config/audio_policy_configuration.xsd
index 19c6f70..4555a88 100644
--- a/audio/7.0/config/audio_policy_configuration.xsd
+++ b/audio/7.0/config/audio_policy_configuration.xsd
@@ -13,7 +13,6 @@
          See the License for the specific language governing permissions and
          limitations under the License.
 -->
-<!-- TODO: define a targetNamespace. Note that it will break retrocompatibility -->
 <xs:schema version="2.0"
            elementFormDefault="qualified"
            attributeFormDefault="unqualified"
@@ -27,7 +26,9 @@
     <xs:simpleType name="halVersion">
         <xs:annotation>
             <xs:documentation xml:lang="en">
-                Version of the interface the hal implements.
+                Version of the interface the hal implements. Note that this
+                relates to legacy HAL API versions since HIDL APIs are versioned
+                using other mechanisms.
             </xs:documentation>
         </xs:annotation>
         <xs:restriction base="xs:decimal">
@@ -154,7 +155,6 @@
             <xs:element name="item" type="xs:token" minOccurs="0" maxOccurs="unbounded"/>
         </xs:sequence>
     </xs:complexType>
-    <!-- TODO: separate values by space for better xsd validations. -->
     <xs:simpleType name="audioInOutFlags">
         <xs:annotation>
             <xs:documentation xml:lang="en">
@@ -212,9 +212,6 @@
             </xs:element>
         </xs:sequence>
     </xs:complexType>
-    <!-- Enum values of audio_device_t in audio.h
-         TODO: generate from hidl to avoid manual sync.
-         TODO: separate source and sink in the xml for better xsd validations. -->
     <xs:simpleType name="audioDevice">
         <xs:restriction base="xs:string">
             <xs:enumeration value="AUDIO_DEVICE_NONE"/>
@@ -252,7 +249,6 @@
             <xs:enumeration value="AUDIO_DEVICE_OUT_DEFAULT"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_STUB"/>
 
-            <!-- Due to the xml format, IN types can not be a separated from OUT types -->
             <xs:enumeration value="AUDIO_DEVICE_IN_COMMUNICATION"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_AMBIENT"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_BUILTIN_MIC"/>
@@ -298,10 +294,9 @@
     <xs:simpleType name="extendableAudioDevice">
         <xs:union memberTypes="audioDevice vendorExtension"/>
     </xs:simpleType>
-    <!-- Enum values of audio_format_t in audio.h
-         TODO: generate from hidl to avoid manual sync. -->
     <xs:simpleType name="audioFormat">
         <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_FORMAT_DEFAULT" />
             <xs:enumeration value="AUDIO_FORMAT_PCM_16_BIT" />
             <xs:enumeration value="AUDIO_FORMAT_PCM_8_BIT"/>
             <xs:enumeration value="AUDIO_FORMAT_PCM_32_BIT"/>
@@ -382,9 +377,14 @@
     <xs:simpleType name="extendableAudioFormat">
         <xs:union memberTypes="audioFormat vendorExtension"/>
     </xs:simpleType>
-    <!-- Enum values of audio::common::4_0::AudioUsage
-         TODO: generate from HIDL to avoid manual sync. -->
     <xs:simpleType name="audioUsage">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio usage specifies the intended use case for the sound being played.
+                Please consult frameworks/base/media/java/android/media/AudioAttributes.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
         <xs:restriction base="xs:string">
             <xs:enumeration value="AUDIO_USAGE_UNKNOWN" />
             <xs:enumeration value="AUDIO_USAGE_MEDIA" />
@@ -399,34 +399,119 @@
             <xs:enumeration value="AUDIO_USAGE_GAME" />
             <xs:enumeration value="AUDIO_USAGE_VIRTUAL_SOURCE" />
             <xs:enumeration value="AUDIO_USAGE_ASSISTANT" />
+            <xs:enumeration value="AUDIO_USAGE_CALL_ASSISTANT" />
+            <xs:enumeration value="AUDIO_USAGE_EMERGENCY" />
+            <xs:enumeration value="AUDIO_USAGE_SAFETY" />
+            <xs:enumeration value="AUDIO_USAGE_VEHICLE_STATUS" />
+            <xs:enumeration value="AUDIO_USAGE_ANNOUNCEMENT" />
         </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="audioUsageList">
         <xs:list itemType="audioUsage"/>
     </xs:simpleType>
-    <!-- TODO: Change to a space separated list to xsd enforce correctness. -->
-    <xs:simpleType name="samplingRates">
-        <xs:restriction base="xs:string">
-            <xs:pattern value="[0-9]+(,[0-9]+)*"/>
-        </xs:restriction>
-    </xs:simpleType>
-    <!-- TODO: Change to a space separated list to xsd enforce correctness. -->
-    <xs:simpleType name="channelMask">
+    <xs:simpleType name="audioContentType">
         <xs:annotation>
             <xs:documentation xml:lang="en">
-                Comma (",") separated list of channel flags
-                from audio_channel_mask_t.
+                Audio content type expresses the general category of the content.
+                Please consult frameworks/base/media/java/android/media/AudioAttributes.java
+                for the description of each value.
             </xs:documentation>
         </xs:annotation>
         <xs:restriction base="xs:string">
-            <xs:pattern value="[_A-Z][_A-Z0-9]*(,[_A-Z][_A-Z0-9]*)*"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_UNKNOWN"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_SPEECH"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_MUSIC"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_MOVIE"/>
+            <xs:enumeration value="AUDIO_CONTENT_TYPE_SONIFICATION"/>
         </xs:restriction>
     </xs:simpleType>
+    <xs:simpleType name="samplingRates">
+        <xs:list itemType="xs:nonNegativeInteger" />
+    </xs:simpleType>
+    <xs:simpleType name="audioChannelMask">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio channel mask specifies presence of particular channels.
+                There are two representations:
+                - representation position (traditional discrete channel specification,
+                  e.g. "left", "right");
+                - indexed (this is similar to "tracks" in audio mixing, channels
+                  are represented using numbers).
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_QUAD_SIDE"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_SURROUND"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_PENTA"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1_SIDE"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_5POINT1POINT4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_6POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1POINT4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO_HAPTIC_A"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO_HAPTIC_AB"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_STEREO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_FRONT_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_6"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_2POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_2POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_3POINT0POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_3POINT1POINT2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_5POINT1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_IN_VOICE_CALL_MONO"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_1"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_2"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_3"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_5"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_6"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_7"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_8"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_9"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_10"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_11"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_12"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_13"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_14"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_15"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_16"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_17"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_18"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_19"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_20"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_21"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_22"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_23"/>
+            <xs:enumeration value="AUDIO_CHANNEL_INDEX_MASK_24"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name="channelMasks">
+        <xs:list itemType="audioChannelMask" />
+    </xs:simpleType>
     <xs:complexType name="profile">
         <xs:attribute name="name" type="xs:token" use="optional"/>
         <xs:attribute name="format" type="extendableAudioFormat" use="optional"/>
         <xs:attribute name="samplingRates" type="samplingRates" use="optional"/>
-        <xs:attribute name="channelMasks" type="channelMask" use="optional"/>
+        <xs:attribute name="channelMasks" type="channelMasks" use="optional"/>
     </xs:complexType>
     <xs:simpleType name="gainMode">
         <xs:restriction base="xs:string">
@@ -441,7 +526,7 @@
                 <xs:complexType>
                     <xs:attribute name="name" type="xs:token" use="required"/>
                     <xs:attribute name="mode" type="gainMode" use="required"/>
-                    <xs:attribute name="channel_mask" type="channelMask" use="optional"/>
+                    <xs:attribute name="channel_mask" type="audioChannelMask" use="optional"/>
                     <xs:attribute name="minValueMB" type="xs:int" use="optional"/>
                     <xs:attribute name="maxValueMB" type="xs:int" use="optional"/>
                     <xs:attribute name="defaultValueMB" type="xs:int" use="optional"/>
@@ -537,9 +622,14 @@
             <xs:pattern value="([0-9]{1,2}|100),-?[0-9]+"/>
         </xs:restriction>
     </xs:simpleType>
-    <!-- Enum values of audio_stream_type_t in audio-base.h
-         TODO: generate from hidl to avoid manual sync. -->
-    <xs:simpleType name="stream">
+    <xs:simpleType name="audioStreamType">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                Audio stream type describing the intended use case of a stream.
+                Please consult frameworks/base/media/java/android/media/AudioSystem.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
         <xs:restriction base="xs:string">
             <xs:enumeration value="AUDIO_STREAM_VOICE_CALL"/>
             <xs:enumeration value="AUDIO_STREAM_SYSTEM"/>
@@ -557,8 +647,32 @@
             <xs:enumeration value="AUDIO_STREAM_PATCH"/>
         </xs:restriction>
     </xs:simpleType>
-    <!-- Enum values of device_category from Volume.h.
-         TODO: generate from hidl to avoid manual sync. -->
+    <xs:simpleType name="audioSource">
+        <xs:annotation>
+            <xs:documentation xml:lang="en">
+                An audio source defines the intended use case for the sound being recorded.
+                Please consult frameworks/base/media/java/android/media/MediaRecorder.java
+                for the description of each value.
+            </xs:documentation>
+        </xs:annotation>
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_SOURCE_DEFAULT"/>
+            <xs:enumeration value="AUDIO_SOURCE_MIC"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_UPLINK"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_DOWNLINK"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_CALL"/>
+            <xs:enumeration value="AUDIO_SOURCE_CAMCORDER"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_RECOGNITION"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_COMMUNICATION"/>
+            <xs:enumeration value="AUDIO_SOURCE_REMOTE_SUBMIX"/>
+            <xs:enumeration value="AUDIO_SOURCE_UNPROCESSED"/>
+            <xs:enumeration value="AUDIO_SOURCE_VOICE_PERFORMANCE"/>
+            <xs:enumeration value="AUDIO_SOURCE_ECHO_REFERENCE"/>
+            <xs:enumeration value="AUDIO_SOURCE_FM_TUNER"/>
+            <xs:enumeration value="AUDIO_SOURCE_HOTWORD"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <!-- Enum values of device_category from Volume.h. -->
     <xs:simpleType name="deviceCategory">
         <xs:restriction base="xs:string">
             <xs:enumeration value="DEVICE_CATEGORY_HEADSET"/>
@@ -591,7 +705,7 @@
         <xs:sequence>
             <xs:element name="point" type="volumePoint" minOccurs="0" maxOccurs="unbounded"/>
         </xs:sequence>
-        <xs:attribute name="stream" type="stream"/>
+        <xs:attribute name="stream" type="audioStreamType"/>
         <xs:attribute name="deviceCategory" type="deviceCategory"/>
         <xs:attribute name="ref" type="xs:token" use="optional"/>
     </xs:complexType>
diff --git a/audio/7.0/config/update_audio_policy_config.sh b/audio/7.0/config/update_audio_policy_config.sh
new file mode 100755
index 0000000..8714b5f
--- /dev/null
+++ b/audio/7.0/config/update_audio_policy_config.sh
@@ -0,0 +1,159 @@
+#!/bin/bash
+
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script is used to update audio policy configuration files
+# to comply with the updated audio_policy_configuration.xsd from V7.0.
+#
+# The main difference is the separator used in lists for attributes.
+# Since the XML Schema Definition standard only allows space to be
+# used as a separator (see https://www.w3.org/TR/xmlschema11-2/#list-datatypes)
+# the previous versions used a regular expression to validate lists
+# in attribute values. E.g. the channel masks were validated using
+# the following regexp: [_A-Z][_A-Z0-9]*(,[_A-Z][_A-Z0-9]*)*
+# This has an obvious drawback of missing typos in the config file.
+#
+# The V7.0 has shifted to defining most of the frequently changed
+# types in the XSD schema only. This allows for verifying all the values
+# in lists, but in order to comply with XML Schema requirements
+# list elements must be separated by space.
+#
+# Since the APM config files typically use include directives,
+# the script must be pointed to the main APM config file and will
+# take care all the included files automatically.
+# If the included file is a shared version from 'frameworks/av',
+# instead of updating it the script checks if there is a newer
+# version with the corresponding name suffix (e.g.
+# 'a2dp_audio_policy_configuration_7_0.xml') and updates the include
+# path instead.
+
+set -euo pipefail
+
+if (echo "$@" | grep -qe -h); then
+    echo "This script will update Audio Policy Manager config file"
+    echo "to the format required by V7.0 XSD schema from a previous"
+    echo "version."
+    echo
+    echo "USAGE: $0 [APM_XML_FILE] [OLD_VERSION]"
+    echo "       APM_XML_FILE specifies the path to audio_policy_configuration.xml"
+    echo "                    relative to Android repository root"
+    echo "       OLD_VERSION specifies the version of schema currently used"
+    echo
+    echo "Example: $0 device/generic/goldfish/audio/policy/audio_policy_configuration.xml 6.0"
+    exit
+fi
+readonly HAL_DIRECTORY=hardware/interfaces/audio
+readonly SHARED_CONFIGS_DIRECTORY=frameworks/av/services/audiopolicy/config
+readonly OLD_VERSION=${2:-$(ls ${ANDROID_BUILD_TOP}/${HAL_DIRECTORY} | grep -E '[0-9]+\.[0-9]+' |
+                                sort -n | tail -n1)}
+readonly NEW_VERSION=7.0
+readonly NEW_VERSION_UNDERSCORE=7_0
+
+readonly SOURCE_CONFIG=${ANDROID_BUILD_TOP}/$1
+
+# First, validate the input using the schema of the current version
+
+echo Validating the source against the $OLD_VERSION schema
+xmllint --noout --xinclude \
+        --nofixup-base-uris --path "$ANDROID_BUILD_TOP/$SHARED_CONFIGS_DIRECTORY" \
+        --schema ${ANDROID_BUILD_TOP}/${HAL_DIRECTORY}/${OLD_VERSION}/config/audio_policy_configuration.xsd \
+        ${SOURCE_CONFIG}
+if [ $? -ne 0 ]; then
+    echo
+    echo "Config file fails validation for the specified version $OLD_VERSION--unsafe to update"
+    exit 1
+fi
+
+# Find all the source files recursively
+
+SOURCE_FILES=${SOURCE_CONFIG}
+SHARED_FILES=
+findIncludes() {
+    local FILES_TO_CHECK=
+    for F in $1; do
+        local FOUND_INCLUDES=$(grep -Po '<xi:include href="\K[^"]+(?="\/>)' ${F})
+        for I in ${FOUND_INCLUDES}; do
+            SOURCE_FULL_PATH=$(dirname ${F})/${I}
+            SHARED_FULL_PATH=${ANDROID_BUILD_TOP}/${SHARED_CONFIGS_DIRECTORY}/${I}
+            if [ -f "$SOURCE_FULL_PATH" ]; then
+                # Device-specific file.
+                SOURCE_FILES+=$'\n'${SOURCE_FULL_PATH}
+                FILES_TO_CHECK+=$'\n'${SOURCE_FULL_PATH}
+            elif [ -f "$SHARED_FULL_PATH" ]; then
+                # Shared file from the frameworks repo.
+                SHARED_FILES+=$'\n'${I}
+                FILES_TO_CHECK+=$'\n'${SHARED_FULL_PATH}
+            else
+                echo
+                echo "Include file not found: $I"
+                exit 1
+            fi
+        done
+    done
+    if [ "$FILES_TO_CHECK" ]; then
+        findIncludes "$FILES_TO_CHECK"
+    fi
+}
+findIncludes ${SOURCE_FILES}
+
+echo "Will update $1 and included device-specific files in place."
+echo "Will update paths to shared included files."
+echo "Press Ctrl-C to cancel, Enter to continue"
+read
+
+updateFile() {
+    FILE=$1
+    ATTR=$2
+    SEPARATOR=$3
+    SRC_LINES=$(grep -nPo "$ATTR=\"[^\"]+\"" ${FILE} || true)
+    for S in $SRC_LINES; do
+        # Prepare instruction for 'sed' for in-place editing of specified line
+        R=$(echo ${S} | sed -e 's/^[0-9]\+:/\//' | sed -e "s/$SEPARATOR/ /g")
+        S=$(echo ${S} | sed -e 's/:/s\//')${R}/
+        echo ${S} | sed -i -f - ${FILE}
+    done
+}
+for F in $SOURCE_FILES; do
+    updateFile ${F} "channelMasks" ","
+    updateFile ${F} "samplingRates" ","
+done;
+
+updateIncludes() {
+    FILE=$1
+    for I in $SHARED_FILES; do
+        NEW_VERSION_I=${I%.*}_${NEW_VERSION_UNDERSCORE}.${I##*.}
+        if [ -e "$ANDROID_BUILD_TOP/$SHARED_CONFIGS_DIRECTORY/$NEW_VERSION_I" ]; then
+            echo "s/$I/$NEW_VERSION_I/g" | sed -i -f - ${FILE}
+        fi
+    done
+}
+for F in $SOURCE_FILES; do
+    updateIncludes ${F}
+done
+
+# Validate the results against the new schema
+
+echo Validating the result against the $NEW_VERSION schema
+xmllint --noout --xinclude \
+        --nofixup-base-uris --path "$ANDROID_BUILD_TOP/$SHARED_CONFIGS_DIRECTORY" \
+        --schema ${ANDROID_BUILD_TOP}/${HAL_DIRECTORY}/${NEW_VERSION}/config/audio_policy_configuration.xsd \
+        ${SOURCE_CONFIG}
+if [ $? -ne 0 ]; then
+    echo
+    echo "Config file fails validation for the specified version $NEW_VERSION--please check the changes"
+    exit 1
+fi
+echo
+echo "Please check the diff and update path to APM shared files in the device makefile!"
diff --git a/audio/7.0/types.hal b/audio/7.0/types.hal
index b0b0843..15ca492 100644
--- a/audio/7.0/types.hal
+++ b/audio/7.0/types.hal
@@ -355,3 +355,58 @@
      */
     TimestretchFallbackMode fallbackMode;
 };
+
+/**
+ * The audio output flags serve two purposes:
+ *
+ *  - when an output stream is created they indicate its attributes;
+ *
+ *  - when present in an output profile descriptor listed for a particular audio
+ *    hardware module, they indicate that an output stream can be opened that
+ *    supports the attributes indicated by the flags.
+ */
+@export(name="audio_output_flags_t", value_prefix="AUDIO_OUTPUT_FLAG_")
+enum AudioOutputFlag : int32_t {
+    NONE    = 0x0, // no attributes
+    DIRECT  = 0x1, // this output directly connects a track
+                   // to one output stream: no software mixer
+    PRIMARY = 0x2, // this output is the primary output of the device. It is
+                   // unique and must be present. It is opened by default and
+                   // receives routing, audio mode and volume controls related
+                   // to voice calls.
+    FAST    = 0x4,    // output supports "fast tracks", defined elsewhere
+    DEEP_BUFFER      = 0x8,   // use deep audio buffers
+    COMPRESS_OFFLOAD = 0x10,  // offload playback of compressed streams to
+                              // hardware codec
+    NON_BLOCKING     = 0x20,  // use non-blocking write
+    HW_AV_SYNC = 0x40,   // output uses a hardware A/V sync
+    TTS        = 0x80,   // output for streams transmitted through speaker at a
+                         // sample rate high enough to accommodate lower-range
+                         // ultrasonic p/b
+    RAW        = 0x100,  // minimize signal processing
+    SYNC       = 0x200,  // synchronize I/O streams
+    IEC958_NONAUDIO = 0x400, // Audio stream contains compressed audio in SPDIF
+                             // data bursts, not PCM.
+    DIRECT_PCM = 0x2000,     // Audio stream containing PCM data that needs
+                             // to pass through compress path for DSP post proc.
+    MMAP_NOIRQ = 0x4000, // output operates in MMAP no IRQ mode.
+    VOIP_RX = 0x8000,    // preferred output for VoIP calls.
+    /** preferred output for call music */
+    INCALL_MUSIC = 0x10000,
+};
+
+/**
+ * The audio input flags are analogous to audio output flags.
+ */
+@export(name="audio_input_flags_t", value_prefix="AUDIO_INPUT_FLAG_")
+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
+    RAW          = 0x4,  // minimize signal processing
+    SYNC         = 0x8,  // synchronize I/O streams
+    MMAP_NOIRQ   = 0x10, // input operates in MMAP no IRQ mode.
+    VOIP_TX      = 0x20, // preferred input for VoIP calls.
+    HW_AV_SYNC   = 0x40, // input connected to an output that uses a hardware A/V sync
+    DIRECT       = 0x80, // for acquiring encoded streams
+};