diff --git a/audio/7.0/config/api/current.txt b/audio/7.0/config/api/current.txt
index ac8dc8ae0c..453ed16d4f 100644
--- a/audio/7.0/config/api/current.txt
+++ b/audio/7.0/config/api/current.txt
@@ -44,10 +44,12 @@ package audio.policy.configuration.V7_0 {
     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_NONE;
     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_3POINT1;
     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;
@@ -70,6 +72,8 @@ package audio.policy.configuration.V7_0 {
     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;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_TRI;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_TRI_BACK;
   }
 
   public enum AudioContentType {
@@ -87,6 +91,7 @@ package audio.policy.configuration.V7_0 {
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_AUX_DIGITAL;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BACK_MIC;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BLE_HEADSET;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_A2DP;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_BLE;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
@@ -117,6 +122,8 @@ package audio.policy.configuration.V7_0 {
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_AUX_DIGITAL;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_AUX_LINE;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLE_HEADSET;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLE_SPEAKER;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
     enum_constant public static final audio.policy.configuration.V7_0.AudioDevice AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
@@ -191,7 +198,6 @@ package audio.policy.configuration.V7_0 {
     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;
@@ -206,9 +212,11 @@ package audio.policy.configuration.V7_0 {
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_HE_AAC_V1;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_HE_AAC_V2;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_IEC61937;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_LC3;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_LDAC;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_LHDC;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_LHDC_LL;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MAT;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MAT_1_0;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MAT_2_0;
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_MAT_2_1;
@@ -228,6 +236,13 @@ package audio.policy.configuration.V7_0 {
     enum_constant public static final audio.policy.configuration.V7_0.AudioFormat AUDIO_FORMAT_WMA_PRO;
   }
 
+  public enum AudioGainMode {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V7_0.AudioGainMode AUDIO_GAIN_MODE_CHANNELS;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioGainMode AUDIO_GAIN_MODE_JOINT;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioGainMode AUDIO_GAIN_MODE_RAMP;
+  }
+
   public enum AudioInOutFlag {
     method public String getRawName();
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_INPUT_FLAG_DIRECT;
@@ -235,6 +250,7 @@ package audio.policy.configuration.V7_0 {
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_INPUT_FLAG_HW_AV_SYNC;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_INPUT_FLAG_HW_HOTWORD;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_INPUT_FLAG_MMAP_NOIRQ;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_INPUT_FLAG_NONE;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_INPUT_FLAG_RAW;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_INPUT_FLAG_SYNC;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_INPUT_FLAG_VOIP_TX;
@@ -247,6 +263,7 @@ package audio.policy.configuration.V7_0 {
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_OUTPUT_FLAG_INCALL_MUSIC;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_OUTPUT_FLAG_MMAP_NOIRQ;
+    enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_OUTPUT_FLAG_NONE;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_OUTPUT_FLAG_NON_BLOCKING;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_OUTPUT_FLAG_PRIMARY;
     enum_constant public static final audio.policy.configuration.V7_0.AudioInOutFlag AUDIO_OUTPUT_FLAG_RAW;
@@ -291,6 +308,7 @@ package audio.policy.configuration.V7_0 {
     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_CALL_ASSISTANT;
     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;
@@ -364,13 +382,6 @@ package audio.policy.configuration.V7_0 {
     enum_constant public static final audio.policy.configuration.V7_0.EngineSuffix configurable;
   }
 
-  public enum GainMode {
-    method public String getRawName();
-    enum_constant public static final audio.policy.configuration.V7_0.GainMode AUDIO_GAIN_MODE_CHANNELS;
-    enum_constant public static final audio.policy.configuration.V7_0.GainMode AUDIO_GAIN_MODE_JOINT;
-    enum_constant public static final audio.policy.configuration.V7_0.GainMode AUDIO_GAIN_MODE_RAMP;
-  }
-
   public class Gains {
     ctor public Gains();
     method public java.util.List<audio.policy.configuration.V7_0.Gains.Gain> getGain();
@@ -384,7 +395,7 @@ package audio.policy.configuration.V7_0 {
     method public int getMaxValueMB();
     method public int getMinRampMs();
     method public int getMinValueMB();
-    method public audio.policy.configuration.V7_0.GainMode getMode();
+    method public java.util.List<audio.policy.configuration.V7_0.AudioGainMode> getMode();
     method public String getName();
     method public int getStepValueMB();
     method public boolean getUseForVolume();
@@ -394,7 +405,7 @@ package audio.policy.configuration.V7_0 {
     method public void setMaxValueMB(int);
     method public void setMinRampMs(int);
     method public void setMinValueMB(int);
-    method public void setMode(audio.policy.configuration.V7_0.GainMode);
+    method public void setMode(java.util.List<audio.policy.configuration.V7_0.AudioGainMode>);
     method public void setName(String);
     method public void setStepValueMB(int);
     method public void setUseForVolume(boolean);
diff --git a/audio/7.0/config/audio_policy_configuration.xsd b/audio/7.0/config/audio_policy_configuration.xsd
index 20fe02002e..67848287ef 100644
--- a/audio/7.0/config/audio_policy_configuration.xsd
+++ b/audio/7.0/config/audio_policy_configuration.xsd
@@ -159,9 +159,13 @@
         <xs:annotation>
             <xs:documentation xml:lang="en">
               The flags indicate suggested stream attributes supported by the profile.
+              Use of AUDIO_{INPUT|OUTPUT}_FLAG_NONE in the XML file isn't required
+              as empty flag lists are allowed. However these constants are useful for
+              representing an empty enum value.
             </xs:documentation>
         </xs:annotation>
         <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_OUTPUT_FLAG_NONE" />
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_DIRECT" />
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_PRIMARY" />
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_FAST" />
@@ -177,6 +181,7 @@
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_MMAP_NOIRQ" />
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_VOIP_RX" />
             <xs:enumeration value="AUDIO_OUTPUT_FLAG_INCALL_MUSIC" />
+            <xs:enumeration value="AUDIO_INPUT_FLAG_NONE" />
             <xs:enumeration value="AUDIO_INPUT_FLAG_FAST" />
             <xs:enumeration value="AUDIO_INPUT_FLAG_HW_HOTWORD" />
             <xs:enumeration value="AUDIO_INPUT_FLAG_RAW" />
@@ -251,8 +256,8 @@
             <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER"/>
-            <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_DIGITAL"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_DIGITAL"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_USB_ACCESSORY"/>
@@ -271,6 +276,8 @@
             <xs:enumeration value="AUDIO_DEVICE_OUT_USB_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_HEARING_AID"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_ECHO_CANCELLER"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLE_HEADSET"/>
+            <xs:enumeration value="AUDIO_DEVICE_OUT_BLE_SPEAKER"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_DEFAULT"/>
             <xs:enumeration value="AUDIO_DEVICE_OUT_STUB"/>
 
@@ -279,8 +286,8 @@
             <xs:enumeration value="AUDIO_DEVICE_IN_BUILTIN_MIC"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_WIRED_HEADSET"/>
-            <xs:enumeration value="AUDIO_DEVICE_IN_AUX_DIGITAL"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_HDMI"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_AUX_DIGITAL"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_VOICE_CALL"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_TELEPHONY_RX"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_BACK_MIC"/>
@@ -302,6 +309,7 @@
             <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_BLE"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_HDMI_ARC"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_ECHO_REFERENCE"/>
+            <xs:enumeration value="AUDIO_DEVICE_IN_BLE_HEADSET"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_DEFAULT"/>
             <xs:enumeration value="AUDIO_DEVICE_IN_STUB"/>
         </xs:restriction>
@@ -321,7 +329,6 @@
     </xs:simpleType>
     <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"/>
@@ -342,22 +349,14 @@
             <xs:enumeration value="AUDIO_FORMAT_AAC_LD"/>
             <xs:enumeration value="AUDIO_FORMAT_AAC_HE_V2"/>
             <xs:enumeration value="AUDIO_FORMAT_AAC_ELD"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_MAIN"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LC"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SSR"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LTP"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V1"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SCALABLE"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ERLC"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LD"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V2"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ELD"/>
-            <xs:enumeration value="AUDIO_FORMAT_VORBIS"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_XHE"/>
             <xs:enumeration value="AUDIO_FORMAT_HE_AAC_V1"/>
             <xs:enumeration value="AUDIO_FORMAT_HE_AAC_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_VORBIS"/>
             <xs:enumeration value="AUDIO_FORMAT_OPUS"/>
             <xs:enumeration value="AUDIO_FORMAT_AC3"/>
             <xs:enumeration value="AUDIO_FORMAT_E_AC3"/>
+            <xs:enumeration value="AUDIO_FORMAT_E_AC3_JOC"/>
             <xs:enumeration value="AUDIO_FORMAT_DTS"/>
             <xs:enumeration value="AUDIO_FORMAT_DTS_HD"/>
             <xs:enumeration value="AUDIO_FORMAT_IEC61937"/>
@@ -377,17 +376,26 @@
             <xs:enumeration value="AUDIO_FORMAT_ALAC"/>
             <xs:enumeration value="AUDIO_FORMAT_APE"/>
             <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_MAIN"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SSR"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LTP"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V1"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SCALABLE"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ERLC"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V2"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ELD"/>
+            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_XHE"/>
             <xs:enumeration value="AUDIO_FORMAT_SBC"/>
             <xs:enumeration value="AUDIO_FORMAT_APTX"/>
             <xs:enumeration value="AUDIO_FORMAT_APTX_HD"/>
             <xs:enumeration value="AUDIO_FORMAT_AC4"/>
             <xs:enumeration value="AUDIO_FORMAT_LDAC"/>
-            <xs:enumeration value="AUDIO_FORMAT_E_AC3_JOC"/>
+            <xs:enumeration value="AUDIO_FORMAT_MAT"/>
             <xs:enumeration value="AUDIO_FORMAT_MAT_1_0"/>
             <xs:enumeration value="AUDIO_FORMAT_MAT_2_0"/>
             <xs:enumeration value="AUDIO_FORMAT_MAT_2_1"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_XHE"/>
-            <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_XHE"/>
             <xs:enumeration value="AUDIO_FORMAT_AAC_LATM"/>
             <xs:enumeration value="AUDIO_FORMAT_AAC_LATM_LC"/>
             <xs:enumeration value="AUDIO_FORMAT_AAC_LATM_HE_V1"/>
@@ -397,6 +405,7 @@
             <xs:enumeration value="AUDIO_FORMAT_LHDC"/>
             <xs:enumeration value="AUDIO_FORMAT_LHDC_LL"/>
             <xs:enumeration value="AUDIO_FORMAT_APTX_TWSP"/>
+            <xs:enumeration value="AUDIO_FORMAT_LC3"/>
         </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="extendableAudioFormat">
@@ -465,9 +474,13 @@
             </xs:documentation>
         </xs:annotation>
         <xs:restriction base="xs:string">
+            <xs:enumeration value="AUDIO_CHANNEL_NONE"/>
             <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_TRI"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_TRI_BACK"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT1"/>
             <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT0POINT2"/>
             <xs:enumeration value="AUDIO_CHANNEL_OUT_2POINT1POINT2"/>
             <xs:enumeration value="AUDIO_CHANNEL_OUT_3POINT0POINT2"/>
@@ -538,19 +551,27 @@
         <xs:attribute name="samplingRates" type="samplingRates" use="optional"/>
         <xs:attribute name="channelMasks" type="channelMasks" use="optional"/>
     </xs:complexType>
-    <xs:simpleType name="gainMode">
+    <xs:simpleType name="audioGainMode">
         <xs:restriction base="xs:string">
             <xs:enumeration value="AUDIO_GAIN_MODE_JOINT"/>
             <xs:enumeration value="AUDIO_GAIN_MODE_CHANNELS"/>
             <xs:enumeration value="AUDIO_GAIN_MODE_RAMP"/>
         </xs:restriction>
     </xs:simpleType>
+    <xs:simpleType name="audioGainModeMaskUnrestricted">
+        <xs:list itemType="audioGainMode" />
+    </xs:simpleType>
+    <xs:simpleType name='audioGainModeMask'>
+        <xs:restriction base='audioGainModeMaskUnrestricted'>
+            <xs:minLength value='1' />
+        </xs:restriction>
+    </xs:simpleType>
     <xs:complexType name="gains">
         <xs:sequence>
             <xs:element name="gain" minOccurs="0" maxOccurs="unbounded">
                 <xs:complexType>
                     <xs:attribute name="name" type="xs:token" use="required"/>
-                    <xs:attribute name="mode" type="gainMode" use="required"/>
+                    <xs:attribute name="mode" type="audioGainModeMask" use="required"/>
                     <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"/>
@@ -670,6 +691,7 @@
             <xs:enumeration value="AUDIO_STREAM_ASSISTANT"/>
             <xs:enumeration value="AUDIO_STREAM_REROUTING"/>
             <xs:enumeration value="AUDIO_STREAM_PATCH"/>
+            <xs:enumeration value="AUDIO_STREAM_CALL_ASSISTANT"/>
         </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="audioSource">
diff --git a/audio/common/7.0/enums/include/audio_policy_configuration_V7_0-enums.h b/audio/common/7.0/enums/include/audio_policy_configuration_V7_0-enums.h
index d5fedce100..cedcab3cc2 100644
--- a/audio/common/7.0/enums/include/audio_policy_configuration_V7_0-enums.h
+++ b/audio/common/7.0/enums/include/audio_policy_configuration_V7_0-enums.h
@@ -25,6 +25,8 @@ namespace audio::policy::configuration::V7_0 {
 
 static inline size_t getChannelCount(AudioChannelMask mask) {
     switch (mask) {
+        case AudioChannelMask::AUDIO_CHANNEL_NONE:
+            return 0;
         case AudioChannelMask::AUDIO_CHANNEL_OUT_MONO:
         case AudioChannelMask::AUDIO_CHANNEL_IN_MONO:
         case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_1:
@@ -42,9 +44,12 @@ static inline size_t getChannelCount(AudioChannelMask mask) {
         case AudioChannelMask::AUDIO_CHANNEL_OUT_2POINT1:
         case AudioChannelMask::AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A:
         case AudioChannelMask::AUDIO_CHANNEL_OUT_MONO_HAPTIC_AB:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_TRI:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_TRI_BACK:
         case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_3:
             return 3;
         case AudioChannelMask::AUDIO_CHANNEL_OUT_2POINT0POINT2:
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_3POINT1:
         case AudioChannelMask::AUDIO_CHANNEL_OUT_QUAD:
         case AudioChannelMask::AUDIO_CHANNEL_OUT_QUAD_BACK:
         case AudioChannelMask::AUDIO_CHANNEL_OUT_QUAD_SIDE:
@@ -158,6 +163,8 @@ static inline bool isOutputDevice(AudioDevice device) {
         case AudioDevice::AUDIO_DEVICE_OUT_USB_HEADSET:
         case AudioDevice::AUDIO_DEVICE_OUT_HEARING_AID:
         case AudioDevice::AUDIO_DEVICE_OUT_ECHO_CANCELLER:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLE_HEADSET:
+        case AudioDevice::AUDIO_DEVICE_OUT_BLE_SPEAKER:
         case AudioDevice::AUDIO_DEVICE_OUT_DEFAULT:
         case AudioDevice::AUDIO_DEVICE_OUT_STUB:
             return true;
@@ -189,6 +196,7 @@ static inline bool isOutputDevice(AudioDevice device) {
         case AudioDevice::AUDIO_DEVICE_IN_BLUETOOTH_BLE:
         case AudioDevice::AUDIO_DEVICE_IN_HDMI_ARC:
         case AudioDevice::AUDIO_DEVICE_IN_ECHO_REFERENCE:
+        case AudioDevice::AUDIO_DEVICE_IN_BLE_HEADSET:
         case AudioDevice::AUDIO_DEVICE_IN_DEFAULT:
         case AudioDevice::AUDIO_DEVICE_IN_STUB:
             return false;
diff --git a/audio/common/7.0/types.hal b/audio/common/7.0/types.hal
index 31c7388329..0d0fa7e91c 100644
--- a/audio/common/7.0/types.hal
+++ b/audio/common/7.0/types.hal
@@ -106,6 +106,8 @@ typedef string AudioFormat;
 
 /**
  * Audio channel mask indicates presence of particular channels.
+ * Note that every value is already a mask comprised of individual
+ * channels.
  * See 'audioChannelMask' in audio_policy_configuration.xsd for the
  * list of allowed values.
  */
@@ -127,13 +129,8 @@ struct AudioProfile {
     AudioFormat format;
     /** List of the sample rates (in Hz) supported by the profile. */
     vec<uint32_t> sampleRates;
-    /**
-     * List of channel masks supported by the profile. Every subvector might be
-     * comprised of several individual channel mask entries for non-traditional
-     * channel masks, e.g. a combination "OUT_FRONT_LEFT,OUT_FRONT_CENTER" which
-     * doesn't have a corresponding predefined channel mask.
-     */
-    vec<vec<AudioChannelMask>> channelMasks;
+    /** List of channel masks supported by the profile. */
+    vec<AudioChannelMask> channelMasks;
 };
 
 /**
@@ -299,21 +296,18 @@ struct SinkMetadata {
 
 /**
  * Type of gain control exposed by an audio port.
+ * See 'audioGainMode' in audio_policy_configuration.xsd for the
+ * list of allowed values.
  */
-@export(name="", value_prefix="AUDIO_GAIN_MODE_")
-enum AudioGainMode : uint32_t {
-    JOINT = 0x1,    // supports joint channel gain control
-    CHANNELS = 0x2, // supports separate channel gain control
-    RAMP = 0x4      // supports gain ramps
-};
+typedef string AudioGainMode;
 
 /**
  * An audio_gain struct is a representation of a gain stage.
  * A gain stage is always attached to an audio port.
  */
 struct AudioGain {
-    bitfield<AudioGainMode> mode;
-    vec<AudioChannelMask> channelMask; // channels which gain an be controlled
+    vec<AudioGainMode> mode; // modes of operation
+    AudioChannelMask channelMask; // channels which gain can be controlled
     int32_t minValue;     // minimum gain value in millibels
     int32_t maxValue;     // maximum gain value in millibels
     int32_t defaultValue; // default gain value in millibels
@@ -328,8 +322,8 @@ struct AudioGain {
  */
 struct AudioGainConfig {
     int32_t index;  // index of the corresponding AudioGain in AudioPort.gains
-    AudioGainMode mode;
-    vec<AudioChannelMask> channelMask;  // channels which gain value follows
+    vec<AudioGainMode> mode; // modes of operation
+    AudioChannelMask channelMask;  // channels which gain value follows
     /**
      * Gain values in millibels for each channel ordered from LSb to MSb in
      * channel mask. The number of values is 1 in joint mode or
diff --git a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
index 5e4b414d29..0a9d5ee166 100644
--- a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
+++ b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
@@ -1150,7 +1150,7 @@ static void testSetAudioProperties(IStream* stream) {
             for (const auto& channelMask : profile.channelMasks) {
                 AudioConfigBase config{.format = profile.format,
                                        .sampleRateHz = sampleRate,
-                                       .channelMask = channelMask};
+                                       .channelMask = {{channelMask}}};
                 auto ret = stream->setAudioProperties(config);
                 EXPECT_TRUE(ret.isOk());
                 EXPECT_EQ(Result::OK, ret) << config.format << "; " << config.sampleRateHz << "; "