From bf7bc6bfcf6a75cd91b75db0346aa1bbc919425b Mon Sep 17 00:00:00 2001
From: notsyncing <song.fc@gmail.com>
Date: Mon, 24 Dec 2018 21:37:03 +0800
Subject: [PATCH] davinci: audio: Use USB audio policy configuration from AOSP

 * This can greatly improve audio quality when an external
   USB DAC is connected.

Change-Id: I4eeaadc9e3dd26fb54dbfa5a1acf3599b3e6b16b
---
 configs/audio/audio_policy_configuration.xml | 55 ++------------------
 1 file changed, 4 insertions(+), 51 deletions(-)

diff --git a/configs/audio/audio_policy_configuration.xml b/configs/audio/audio_policy_configuration.xml
index 6f741dd..e4e2af0 100644
--- a/configs/audio/audio_policy_configuration.xml
+++ b/configs/audio/audio_policy_configuration.xml
@@ -183,17 +183,6 @@
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,96000"
                              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="usb_surround_sound" role="sink" maxOpenCount="1" maxActiveCount="0">
-                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,88200,96000,176400,192000"
-                             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,AUDIO_CHANNEL_IN_7POINT1,AUDIO_CHANNEL_INDEX_MASK_8"/>
-                    <profile name="" format="AUDIO_FORMAT_PCM_32_BIT"
-                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,88200,96000,176400,192000"
-                             channelMasks="AUDIO_CHANNEL_IN_5POINT1,AUDIO_CHANNEL_INDEX_MASK_6,AUDIO_CHANNEL_IN_7POINT1,AUDIO_CHANNEL_INDEX_MASK_8"/>
-                    <profile name="" format="AUDIO_FORMAT_PCM_FLOAT"
-                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,88200,96000,176400,192000"
-                             channelMasks="AUDIO_CHANNEL_IN_5POINT1,AUDIO_CHANNEL_INDEX_MASK_6,AUDIO_CHANNEL_IN_7POINT1,AUDIO_CHANNEL_INDEX_MASK_8"/>
-                </mixPort>
                 <mixPort name="record_24" role="sink" maxOpenCount="1" maxActiveCount="0">
                     <profile name="" format="AUDIO_FORMAT_PCM_24_BIT_PACKED"
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000,96000,192000"
@@ -282,14 +271,6 @@
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </devicePort>
-                <devicePort tagName="USB Device Out" type="AUDIO_DEVICE_OUT_USB_DEVICE" role="sink">
-                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="44100,48000,64000,88200,96000,128000,176400,192000" channelMasks="dynamic"/>
-                </devicePort>
-                <devicePort tagName="USB Headset Out" type="AUDIO_DEVICE_OUT_USB_HEADSET" role="sink">
-                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="44100,48000,64000,88200,96000,128000,176400,192000" channelMasks="dynamic"/>
-                </devicePort>
 
                 <!-- Input devices declaration, i.e. Source DEVICE PORT -->
                 <devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
@@ -320,10 +301,6 @@
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="8000,16000,48000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
                 </devicePort>
-                <devicePort tagName="USB Device In" type="AUDIO_DEVICE_IN_USB_DEVICE" role="source">
-                </devicePort>
-                <devicePort tagName="USB Headset In" type="AUDIO_DEVICE_IN_USB_HEADSET" role="source">
-                </devicePort>
 
             </devicePorts>
             <!-- route declaration, i.e. list all available sources for a given sink -->
@@ -350,33 +327,26 @@
                        sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
                 <route type="mix" sink="BT SCO Car Kit"
                        sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
-                <route type="mix" sink="USB Device Out"
-                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx,mmap_no_irq_out,hifi_playback"/>
-                <route type="mix" sink="USB Headset Out"
-                       sources="primary output,raw,deep_buffer,direct_pcm,compressed_offload,voip_rx,mmap_no_irq_out,hifi_playback"/>
                 <route type="mix" sink="Telephony Tx"
                        sources="voice_tx,incall_music_uplink"/>
                 <route type="mix" sink="voice_rx"
                        sources="Telephony Rx"/>
                 <route type="mix" sink="primary input"
-                       sources="Wired Headset Mic,BT SCO Headset Mic,FM Tuner,USB Device In,USB Headset In,Telephony Rx"/>
+                       sources="Wired Headset Mic,BT SCO Headset Mic,FM Tuner,Telephony Rx"/>
                 <route type="mix" sink="voip_tx"
-                       sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic,USB Device In,USB Headset In"/>
+                       sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic"/>
                 <route type="mix" sink="surround_sound"
                        sources="Built-In Mic,Built-In Back Mic"/>
-                <route type="mix" sink="usb_surround_sound"
-                       sources="USB Device In,USB Headset In"/>
                 <route type="mix" sink="record_24"
                        sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic"/>
                 <route type="mix" sink="mmap_no_irq_in"
-                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,USB Device In,USB Headset In"/>
+                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic"/>
                 <route type="mix" sink="BT A2DP Out"
                        sources="primary output,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
                 <route type="mix" sink="BT A2DP Headphones"
                        sources="primary output,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
                 <route type="mix" sink="BT A2DP Speaker"
                        sources="primary output,deep_buffer,direct_pcm,compressed_offload,voip_rx"/>
-                <route type="mix" sink="hifi_input" sources="USB Device In,USB Headset In" />
             </routes>
 
         </module>
@@ -385,24 +355,7 @@
         <xi:include href="/vendor/etc/a2dp_in_audio_policy_configuration.xml"/>
 
         <!-- Usb Audio HAL -->
-        <module name="usb" halVersion="2.0">
-            <mixPorts>
-                <mixPort name="usb_accessory output" role="source">
-                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="44100" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
-                </mixPort>
-            </mixPorts>
-            <devicePorts>
-                <devicePort tagName="USB Host Out" type="AUDIO_DEVICE_OUT_USB_ACCESSORY" role="sink">
-                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="44100" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
-                </devicePort>
-            </devicePorts>
-            <routes>
-                <route type="mix" sink="USB Host Out"
-                       sources="usb_accessory output"/>
-            </routes>
-        </module>
+        <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"/>