diff --git a/configs/msm8937/audio_policy_configuration_sdm429w_law.xml b/configs/msm8937/audio_policy_configuration_sdm429w_law.xml
new file mode 100644
index 0000000..a5dff0a
--- /dev/null
+++ b/configs/msm8937/audio_policy_configuration_sdm429w_law.xml
@@ -0,0 +1,331 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!-- Copyright (c) 2016-2017,2020-2021,The Linux Foundation. All rights reserved
+     Not a Contribution.
+-->
+<!-- Copyright (C) 2015 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.
+-->
+
+<audioPolicyConfiguration version="1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
+    <!-- version section contains a “version” tag in the form “major.minor” e.g version=”1.0” -->
+
+    <!-- Global configuration Decalaration -->
+    <globalConfiguration speaker_drc_enabled="true"/>
+
+
+    <!-- Modules section:
+        There is one section per audio HW module present on the platform.
+        Each module section will contains two mandatory tags for audio HAL “halVersion” and “name”.
+        The module names are the same as in current .conf file:
+                “primary”, “A2DP”, “remote_submix”, “USB”
+        Each module will contain the following sections:
+        “devicePorts”: a list of device descriptors for all input and output devices accessible via this
+        module.
+        This contains both permanently attached devices and removable devices.
+        “mixPorts”: listing all output and input streams exposed by the audio HAL
+        “routes”: list of possible connections between input and output devices or between stream and
+        devices.
+            "route": is defined by an attribute:
+                -"type": <mux|mix> means all sources are mutual exclusive (mux) or can be mixed (mix)
+                -"sink": the sink involved in this route
+                -"sources": all the sources than can be connected to the sink via vis route
+        “attachedDevices”: permanently attached devices.
+        The attachedDevices section is a list of devices names. The names correspond to device names
+        defined in <devicePorts> section.
+        “defaultOutputDevice”: device to be used by default when no policy rule applies
+    -->
+    <modules>
+        <!-- Primary Audio HAL -->
+        <module name="primary" halVersion="2.0">
+            <attachedDevices>
+                <item>Earpiece</item>
+                <item>Speaker</item>
+                <item>Telephony Tx</item>
+                <item>Built-In Mic</item>
+                <item>Built-In Back Mic</item>
+                <item>FM Tuner</item>
+                <item>Telephony Rx</item>
+            </attachedDevices>
+            <defaultOutputDevice>Speaker</defaultOutputDevice>
+            <mixPorts>
+                <mixPort name="primary output" role="source" flags="AUDIO_OUTPUT_FLAG_FAST|AUDIO_OUTPUT_FLAG_PRIMARY">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="raw" role="source"
+                        flags="AUDIO_OUTPUT_FLAG_FAST|AUDIO_OUTPUT_FLAG_RAW">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="deep_buffer" role="source"
+                        flags="AUDIO_OUTPUT_FLAG_DEEP_BUFFER">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="direct_pcm" role="source"
+                        flags="AUDIO_OUTPUT_FLAG_DIRECT">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000,128000,176400,192000"
+                             channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
+                    <profile name="" format="AUDIO_FORMAT_PCM_8_24_BIT"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000,128000,176400,192000"
+                             channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
+                    <profile name="" format="AUDIO_FORMAT_PCM_24_BIT_PACKED"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000,128000,176400,192000"
+                             channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
+                </mixPort>
+                <mixPort name="compressed_offload" role="source"
+                         flags="AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD|AUDIO_OUTPUT_FLAG_NON_BLOCKING">
+                    <profile name="" format="AUDIO_FORMAT_MP3"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_FLAC"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000,128000,176400,192000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_ALAC"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000,128000,176400,192000"
+                             channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
+                    <profile name="" format="AUDIO_FORMAT_APE"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000,128000,176400,192000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_LC"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_HE_V1"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_HE_V2"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_WMA"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
+                    <profile name="" format="AUDIO_FORMAT_WMA_PRO"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000"
+                             channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
+                    <profile name="" format="AUDIO_FORMAT_VORBIS"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000,128000,176400,192000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_ADTS_LC"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_ADTS_HE_V1"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_ADTS_HE_V2"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,64000,88200,96000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO"/>
+                </mixPort>
+                <mixPort name="voice_tx" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000,48000" channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="voip_rx" role="source"
+                         flags="AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_VOIP_RX">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_MONO"/>
+                </mixPort>
+
+                <mixPort name="primary input" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK"/>
+                </mixPort>
+                <mixPort name="surround_sound" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK,AUDIO_CHANNEL_INDEX_MASK_3,AUDIO_CHANNEL_INDEX_MASK_4,AUDIO_CHANNEL_IN_5POINT1,AUDIO_CHANNEL_INDEX_MASK_6"/>
+                </mixPort>
+                <mixPort name="voice_rx" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>
+                </mixPort>
+            </mixPorts>
+
+            <devicePorts>
+                <!-- Output devices declaration, i.e. Sink DEVICE PORT -->
+                <devicePort tagName="Earpiece" type="AUDIO_DEVICE_OUT_EARPIECE" role="sink">
+                   <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                            samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
+                </devicePort>
+                <devicePort tagName="Speaker" role="sink" type="AUDIO_DEVICE_OUT_SPEAKER" address="">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="Wired Headset" type="AUDIO_DEVICE_OUT_WIRED_HEADSET" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="Wired Headphones" type="AUDIO_DEVICE_OUT_WIRED_HEADPHONE" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="Line" type="AUDIO_DEVICE_OUT_LINE" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="BT SCO" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_MONO"/>
+                </devicePort>
+                <devicePort tagName="BT SCO Headset" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_MONO"/>
+                </devicePort>
+                <devicePort tagName="BT SCO Car Kit" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_MONO"/>
+                </devicePort>
+                <devicePort tagName="BT SCO All" type="AUDIO_DEVICE_OUT_ALL_SCO" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_MONO"/>
+                </devicePort>
+                <devicePort tagName="Telephony Tx" type="AUDIO_DEVICE_OUT_TELEPHONY_TX" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="HDMI" type="AUDIO_DEVICE_OUT_AUX_DIGITAL" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,11025,16000,22050,32000,44100,48000,64000,88200,96000,128000,176400,192000" channelMasks="dynamic"/>
+                </devicePort>
+                <devicePort tagName="Proxy" type="AUDIO_DEVICE_OUT_PROXY" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,11025,16000,22050,32000,44100,48000,64000,88200,96000,128000,176400,192000" channelMasks="dynamic"/>
+                </devicePort>
+                <devicePort tagName="FM" type="AUDIO_DEVICE_OUT_FM" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="BT A2DP Out" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP" role="sink"
+                    encodedFormats="AUDIO_FORMAT_SBC AUDIO_FORMAT_AAC AUDIO_FORMAT_APTX AUDIO_FORMAT_APTX_HD AUDIO_FORMAT_LDAC AUDIO_FORMAT_CELT AUDIO_FORMAT_APTX_ADAPTIVE">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="BT A2DP Headphones" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES" role="sink"
+                    encodedFormats="AUDIO_FORMAT_SBC AUDIO_FORMAT_AAC AUDIO_FORMAT_APTX AUDIO_FORMAT_APTX_HD AUDIO_FORMAT_LDAC AUDIO_FORMAT_CELT AUDIO_FORMAT_APTX_ADAPTIVE">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="BT A2DP Speaker" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER" role="sink"
+                    encodedFormats="AUDIO_FORMAT_SBC AUDIO_FORMAT_AAC AUDIO_FORMAT_APTX AUDIO_FORMAT_APTX_HD AUDIO_FORMAT_LDAC AUDIO_FORMAT_CELT AUDIO_FORMAT_APTX_ADAPTIVE">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+
+                <devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK"/>
+                </devicePort>
+                <devicePort tagName="Built-In Back Mic" type="AUDIO_DEVICE_IN_BACK_MIC" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK"/>
+                </devicePort>
+                <devicePort tagName="FM Tuner" type="AUDIO_DEVICE_IN_FM_TUNER" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>
+                </devicePort>
+                <devicePort tagName="Wired Headset Mic" type="AUDIO_DEVICE_IN_WIRED_HEADSET" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK"/>
+                </devicePort>
+                <devicePort tagName="BT SCO Headset Mic" type="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
+                </devicePort>
+                <devicePort tagName="Telephony Rx" type="AUDIO_DEVICE_IN_TELEPHONY_RX" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="8000,16000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
+                </devicePort>
+            </devicePorts>
+            <!-- route declaration, i.e. list all available sources for a given sink -->
+            <routes>
+                <route type="mix" sink="Earpiece"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
+                <route type="mix" sink="Speaker"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
+                <route type="mix" sink="Wired Headset"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
+                <route type="mix" sink="Wired Headphones"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
+                <route type="mix" sink="Line"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
+                <route type="mix" sink="HDMI"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload"/>
+                <route type="mix" sink="Proxy"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload"/>
+                <route type="mix" sink="FM"
+                       sources="primary output"/>
+                <route type="mix" sink="BT SCO All"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
+                <route type="mix" sink="Telephony Tx"
+                       sources="voice_tx"/>
+                <route type="mix" sink="primary input"
+                       sources="Wired Headset Mic,BT SCO Headset Mic,FM Tuner,Telephony Rx"/>
+                <route type="mix" sink="surround_sound"
+                       sources="Built-In Mic,Built-In Back Mic"/>
+                <route type="mix" sink="voice_rx"
+                       sources="Telephony Rx"/>
+                <route type="mix" sink="BT A2DP Out"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload"/>
+                <route type="mix" sink="BT A2DP Headphones"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload"/>
+                <route type="mix" sink="BT A2DP Speaker"
+                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload"/>
+            </routes>
+
+        </module>
+
+        <!-- A2DP Audio HAL -->
+        <module name="a2dp" halVersion="2.0">
+            <mixPorts>
+                <mixPort name="a2dp input" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="44100,48000" channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>
+                </mixPort>
+            </mixPorts>
+
+            <devicePorts>
+                <devicePort tagName="BT A2DP In" type="AUDIO_DEVICE_IN_BLUETOOTH_A2DP" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="44100,48000" channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>
+                </devicePort>
+            </devicePorts>
+
+            <routes>
+                <route type="mix" sink="a2dp input"
+                       sources="BT A2DP In"/>
+            </routes>
+        </module>
+
+        <!-- Usb Audio HAL -->
+        <xi:include href="/vendor/etc/usb_audio_policy_configuration.xml"/>
+
+        <!-- Remote Submix Audio HAL -->
+        <xi:include href="/vendor/etc/r_submix_audio_policy_configuration.xml"/>
+
+    </modules>
+    <!-- End of Modules section -->
+
+    <!-- Volume section -->
+
+    <xi:include href="/vendor/etc/audio_policy_volumes.xml"/>
+    <xi:include href="/vendor/etc/default_volume_tables.xml"/>
+
+    <!-- End of Volume section -->
+
+</audioPolicyConfiguration>
diff --git a/configs/msm8937/mixer_paths_sdm429w_dvt2.xml b/configs/msm8937/mixer_paths_sdm429w_dvt2.xml
index 7f7cf89..bea8f02 100644
--- a/configs/msm8937/mixer_paths_sdm429w_dvt2.xml
+++ b/configs/msm8937/mixer_paths_sdm429w_dvt2.xml
@@ -430,6 +430,15 @@
         <path name="compress-offload-playback2" />
     </path>
 
+    <path name="compress-offload-playback2 bt-a2dp">
+        <ctl name="SLIMBUS_7_RX Audio Mixer MultiMedia7" value="1" />
+    </path>
+
+    <path name="compress-offload-playback2 speaker-and-bt-a2dp">
+        <path name="compress-offload-playback2 bt-a2dp" />
+        <path name="compress-offload-playback2" />
+    </path>
+
     <path name="compress-offload-playback3">
         <ctl name="QUAT_MI2S_RX Audio Mixer MultiMedia10" value="1" />
     </path>
diff --git a/configs/msm8937/msm8937.mk b/configs/msm8937/msm8937.mk
index 05f7659..c55bd6a 100644
--- a/configs/msm8937/msm8937.mk
+++ b/configs/msm8937/msm8937.mk
@@ -146,10 +146,19 @@
 
 #XML Audio configuration files
 ifeq ($(USE_XML_AUDIO_POLICY_CONF), 1)
-ifneq ($(TARGET_USES_AOSP_FOR_AUDIO), true)
-PRODUCT_COPY_FILES += \
-    $(TOPDIR)vendor/qcom/opensource/audio-hal/primary-hal/configs/msm8937/audio_policy_configuration.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio/audio_policy_configuration.xml
-endif
+   ifeq ($(TARGET_PRODUCT),sdm429w_law)
+      PRODUCT_COPY_FILES += \
+      $(TOPDIR)vendor/qcom/opensource/audio-hal/primary-hal/configs/msm8937/audio_policy_configuration_sdm429w_law.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_configuration.xml
+   else ifeq ($(TARGET_SUPPORTS_WEARABLES), true)
+      PRODUCT_COPY_FILES += \
+      $(TOPDIR)vendor/qcom/opensource/audio-hal/primary-hal/configs/msm8937/audio_policy_configuration_sdm429w.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_configuration.xml
+   else ifeq ($(TARGET_USES_AOSP_FOR_AUDIO), true)
+      PRODUCT_COPY_FILES += \
+      $(TOPDIR)vendor/qcom/opensource/audio-hal/primary-hal/configs/msm8937/audio_policy_configuration_common.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_configuration.xml \
+   else
+      PRODUCT_COPY_FILES += \
+      $(TOPDIR)vendor/qcom/opensource/audio-hal/primary-hal/configs/msm8937/audio_policy_configuration.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_configuration.xml
+   endif
 PRODUCT_COPY_FILES += \
     $(TOPDIR)vendor/qcom/opensource/audio-hal/primary-hal/configs/common/bluetooth_qti_audio_policy_configuration.xml:$(TARGET_COPY_OUT_VENDOR)/etc/a2dp_audio_policy_configuration.xml \
     $(TOPDIR)frameworks/av/services/audiopolicy/config/audio_policy_volumes.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_volumes.xml \
@@ -157,13 +166,6 @@
     $(TOPDIR)frameworks/av/services/audiopolicy/config/r_submix_audio_policy_configuration.xml:$(TARGET_COPY_OUT_VENDOR)/etc/r_submix_audio_policy_configuration.xml \
     $(TOPDIR)frameworks/av/services/audiopolicy/config/usb_audio_policy_configuration.xml:$(TARGET_COPY_OUT_VENDOR)/etc/usb_audio_policy_configuration.xml
 endif
-ifeq ($(TARGET_SUPPORTS_WEARABLES), true)
-   PRODUCT_COPY_FILES += \
-   $(TOPDIR)vendor/qcom/opensource/audio-hal/primary-hal/configs/msm8937/audio_policy_configuration_sdm429w.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_configuration.xml
-else
-   PRODUCT_COPY_FILES += \
-   $(TOPDIR)vendor/qcom/opensource/audio-hal/primary-hal/configs/msm8937/audio_policy_configuration_common.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_configuration.xml
-endif
 
 # Reduce client buffer size for fast audio output tracks
 PRODUCT_PROPERTY_OVERRIDES += \
@@ -284,9 +286,18 @@
 
 PRODUCT_PROPERTY_OVERRIDES += \
 persist.vendor.audio.hw.binder.size_kbyte=1024
+
+ifeq ($(AUDIO_FEATURE_ENABLED_SPLIT_A2DP), true)
+#Enable split a2dp
+PRODUCT_PROPERTY_OVERRIDES += \
+vendor.audio.feature.a2dp_offload.enable=true \
+ro.bluetooth.a2dp_offload.supported=true
+else
 #Disable split a2dp
 PRODUCT_PROPERTY_OVERRIDES += \
-persist.vendor.bt.enable.splita2dp=false
+vendor.audio.feature.a2dp_offload.enable=false \
+ro.bluetooth.a2dp_offload.supported=false
+endif
 
 #enable headset calibration
 PRODUCT_PROPERTY_OVERRIDES += \
@@ -298,7 +309,6 @@
 
 #add dynamic feature flags here
 PRODUCT_PROPERTY_OVERRIDES += \
-vendor.audio.feature.a2dp_offload.enable=false \
 vendor.audio.feature.afe_proxy.enable=true \
 vendor.audio.feature.anc_headset.enable=true \
 vendor.audio.feature.battery_listener.enable=false \
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index d594436..071c594 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -4850,15 +4850,6 @@
     return;
 }
 
-static int get_alive_usb_card(struct str_parms* parms) {
-    int card;
-    if ((str_parms_get_int(parms, "card", &card) >= 0) &&
-        !audio_extn_usb_alive(card)) {
-        return card;
-    }
-    return -ENODEV;
-}
-
 int route_output_stream(struct stream_out *out,
                         struct listnode *devices)
 {
@@ -4906,7 +4897,7 @@
         reassign_device_list(&new_devices, AUDIO_DEVICE_OUT_SPEAKER, "");
     }
     /*
-     * When USB headset is disconnected the music platback paused
+     * When USB headset is disconnected the music playback paused
      * and the policy manager send routing=0. But if the USB is connected
      * back before the standby time, AFE is not closed and opened
      * when USB is connected back. So routing to speker will guarantee
@@ -4943,14 +4934,13 @@
 
     // Workaround: If routing to an non existing usb device, fail gracefully
     // The routing request will otherwise block during 10 second
-    int card;
     if (is_usb_out_device_type(&new_devices)) {
         struct str_parms *parms =
             str_parms_create_str(get_usb_device_address(&new_devices));
         if (!parms)
             goto error;
-        if ((card = get_alive_usb_card(parms)) >= 0) {
-            ALOGW("%s: ignoring rerouting to non existing USB card %d", __func__, card);
+        if (!audio_extn_usb_connected(NULL)) {
+            ALOGW("%s: ignoring rerouting to non existing USB card", __func__);
             pthread_mutex_unlock(&adev->lock);
             pthread_mutex_unlock(&out->lock);
             str_parms_destroy(parms);
@@ -5929,6 +5919,12 @@
         }
     }
 
+    if (is_usb_out_device_type(&out->device_list) &&
+            !audio_extn_usb_connected(NULL)) {
+        ret = -EIO;
+        goto exit;
+    }
+
     if (out->standby) {
         out->standby = false;
         const int64_t startNs = systemTime(SYSTEM_TIME_MONOTONIC);
@@ -6978,12 +6974,11 @@
           is_audio_in_device_type(devices)) {
         // Workaround: If routing to an non existing usb device, fail gracefully
         // The routing request will otherwise block during 10 second
-        int card;
         struct str_parms *usb_addr =
                 str_parms_create_str(get_usb_device_address(devices));
         if (is_usb_in_device_type(devices) && usb_addr &&
-             (card = get_alive_usb_card(usb_addr)) >= 0) {
-            ALOGW("%s: ignoring rerouting to non existing USB card %d", __func__, card);
+             !audio_extn_usb_connected(NULL)) {
+            ALOGW("%s: ignoring rerouting to non existing USB", __func__);
             ret = -ENOSYS;
         } else {
             /* If recording is in progress, change the tx device to new device */
@@ -7655,20 +7650,25 @@
     if (position == NULL) {
         return -EINVAL;
     }
+    lock_input_stream(in);
     if (in->usecase != USECASE_AUDIO_RECORD_MMAP) {
+        pthread_mutex_unlock(&in->lock);
         return -ENOSYS;
     }
     if (in->pcm == NULL) {
+        pthread_mutex_unlock(&in->lock);
         return -ENOSYS;
     }
     struct timespec ts = { 0, 0 };
     int ret = pcm_mmap_get_hw_ptr(in->pcm, (unsigned int *)&position->position_frames, &ts);
     if (ret < 0) {
         ALOGE("%s: %s", __func__, pcm_get_error(in->pcm));
+        pthread_mutex_unlock(&in->lock);
         return ret;
     }
     position->time_nanoseconds = ts.tv_sec*1000000000LL + ts.tv_nsec
             + in->mmap_time_offset_nanos;
+    pthread_mutex_unlock(&in->lock);
     return 0;
 }
 
@@ -10444,8 +10444,6 @@
 {
     struct audio_usecase *uc_info;
     struct audio_usecase *usecase;
-    float left_p;
-    float right_p;
     struct listnode devices;
     struct listnode *node;
 
@@ -10494,33 +10492,31 @@
                     break;
                 }
             }
-            left_p = out->volume_l;
-            right_p = out->volume_r;
-            out->a2dp_muted = true;
-            if (is_offload_usecase(out->usecase)) {
-                if (out->offload_state == OFFLOAD_STATE_PLAYING)
-                    compress_pause(out->compr);
-                out_set_compr_volume(&out->stream, (float)0, (float)0);
-            } else if (out->usecase == USECASE_AUDIO_PLAYBACK_VOIP) {
-                out_set_voip_volume(&out->stream, (float)0, (float)0);
-            } else {
-                out_set_pcm_volume(&out->stream, (float)0, (float)0);
-                /* wait for stale pcm drained before switching to speaker */
-                uint32_t latency =
-                    (out->config.period_count * out->config.period_size * 1000) /
-                    (out->config.rate);
-                usleep(latency * 1000);
+            if (uc_info->out_snd_device == SND_DEVICE_OUT_BT_A2DP) {
+                out->a2dp_muted = true;
+                if (is_offload_usecase(out->usecase)) {
+                    if (out->offload_state == OFFLOAD_STATE_PLAYING)
+                        compress_pause(out->compr);
+                    out_set_compr_volume(&out->stream, (float)0, (float)0);
+                } else if (out->usecase == USECASE_AUDIO_PLAYBACK_VOIP) {
+                    out_set_voip_volume(&out->stream, (float)0, (float)0);
+                } else {
+                    out_set_pcm_volume(&out->stream, (float)0, (float)0);
+                    /* wait for stale pcm drained before switching to speaker */
+                    uint32_t latency =
+                        (out->config.period_count * out->config.period_size * 1000) /
+                        (out->config.rate);
+                    usleep(latency * 1000);
+                }
             }
             select_devices(adev, out->usecase);
-            ALOGD("%s: switched to device:%s and mute stream",
-                   __func__, platform_get_snd_device_name(uc_info->out_snd_device));
+            ALOGD("%s: switched to device:%s and stream muted:%d", __func__,
+                platform_get_snd_device_name(uc_info->out_snd_device), out->a2dp_muted);
             if (is_offload_usecase(out->usecase)) {
                 if (out->offload_state == OFFLOAD_STATE_PLAYING)
                     compress_resume(out->compr);
             }
             assign_devices(&out->device_list, &devices);
-            out->volume_l = left_p;
-            out->volume_r = right_p;
         }
         pthread_mutex_unlock(&out->latch_lock);
     }