From cd63701eb0ee43fbd3d08b247f8fa784dcdeea71 Mon Sep 17 00:00:00 2001
From: Jakub Tyszkowski <tyszkowski@google.com>
Date: Thu, 14 Jul 2022 11:36:56 +0000
Subject: [PATCH] audio: Enable Le Audio SW LC3 coding

Since the Le Audio HW offloader enable/disable control flag
controls Unicast and Broadcast at the same time, we need them
both to work either with HW or SW audio coding paths.

This patch enables software encoding audio path on unicast.
This is the only way to make unicast and broadcast to interact,
since the HW offloader for Braodcast is not yet ready.

Bug: 238997591
Fixes: 238997591
Tag: #feature
Test: atest BluetoothInstrumentationTests
Change-Id: I04fc1306eb15ea2ae102f65b59c1b1cca2070dd1
---
 audio/lynx/audio-tables.mk                    |   1 +
 ...licy_configuration_le_offload_disabled.xml | 260 ++++++++++++++++++
 2 files changed, 261 insertions(+)
 create mode 100644 audio/lynx/config/audio_policy_configuration_le_offload_disabled.xml

diff --git a/audio/lynx/audio-tables.mk b/audio/lynx/audio-tables.mk
index f38db39..812dbce 100644
--- a/audio/lynx/audio-tables.mk
+++ b/audio/lynx/audio-tables.mk
@@ -24,6 +24,7 @@ PRODUCT_COPY_FILES += \
     device/google/lynx/audio/$(AUDIO_TABLE_FOLDER)/config/audio_platform_configuration.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_platform_configuration.xml \
     device/google/lynx/audio/$(AUDIO_TABLE_FOLDER)/config/sound_trigger_configuration.xml:$(TARGET_COPY_OUT_VENDOR)/etc/sound_trigger_configuration.xml \
     device/google/lynx/audio/$(AUDIO_TABLE_FOLDER)/config/audio_policy_volumes.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_volumes.xml \
+    device/google/lynx/audio/$(AUDIO_TABLE_FOLDER)/config/audio_policy_configuration_le_offload_disabled.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_policy_configuration_le_offload_disabled.xml \
     frameworks/av/services/audiopolicy/config/bluetooth_with_le_audio_policy_configuration_7_0.xml:$(TARGET_COPY_OUT_VENDOR)/etc/bluetooth_audio_policy_configuration_7_0.xml
 
 # AudioEffectHAL Configuration
diff --git a/audio/lynx/config/audio_policy_configuration_le_offload_disabled.xml b/audio/lynx/config/audio_policy_configuration_le_offload_disabled.xml
new file mode 100644
index 0000000..224d0a2
--- /dev/null
+++ b/audio/lynx/config/audio_policy_configuration_le_offload_disabled.xml
@@ -0,0 +1,260 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!-- 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.
+-->
+<audioPolicyConfiguration version="7.0" xmlns:xi="http://www.w3.org/2001/XInclude">
+    <globalConfiguration speaker_drc_enabled="false" call_screen_mode_supported="true" />
+    <modules>
+        <!-- Primary Audio HAL -->
+        <module name="primary" halVersion="2.0">
+            <attachedDevices>
+                <item>Speaker</item>
+                <item>Speaker Safe</item>
+                <item>Earpiece</item>
+                <item>Built-In Mic</item>
+                <item>Built-In Back Mic</item>
+                <item>Telephony Tx</item>
+                <item>Voice Call And Telephony Rx</item>
+                <item>Echo Ref In</item>
+            </attachedDevices>
+            <defaultOutputDevice>Speaker</defaultOutputDevice>
+            <mixPorts>
+                <mixPort name="primary output" role="source" flags="AUDIO_OUTPUT_FLAG_PRIMARY AUDIO_OUTPUT_FLAG_FAST"
+                         recommendedMuteDurationMs="40">
+                    <profile name="" format="AUDIO_FORMAT_PCM_FLOAT"
+                             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_FLOAT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </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 16000 24000 32000 44100 48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_LC"
+                             samplingRates="8000 16000 24000 32000 44100 48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_HE_V1"
+                             samplingRates="8000 16000 24000 32000 44100 48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO AUDIO_CHANNEL_OUT_MONO"/>
+                    <profile name="" format="AUDIO_FORMAT_AAC_HE_V2"
+                             samplingRates="8000 16000 24000 32000 44100 48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO AUDIO_CHANNEL_OUT_MONO"/>
+                </mixPort>
+                <mixPort name="haptic" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A" />
+                </mixPort>
+                <mixPort name="raw" role="source" flags="AUDIO_OUTPUT_FLAG_RAW AUDIO_OUTPUT_FLAG_FAST">
+                    <profile name="" format="AUDIO_FORMAT_PCM_32_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="mmap_no_irq_out" role="source" flags="AUDIO_OUTPUT_FLAG_DIRECT AUDIO_OUTPUT_FLAG_MMAP_NOIRQ">
+                    <profile name="" format="AUDIO_FORMAT_PCM_FLOAT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="immersive_out" role="source" flags="AUDIO_OUTPUT_FLAG_SPATIALIZER">
+                    <profile name="" format="AUDIO_FORMAT_PCM_FLOAT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="incall playback" role="source"
+                         flags="AUDIO_OUTPUT_FLAG_INCALL_MUSIC">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO" />
+                </mixPort>
+                <mixPort name="voice call tx" role="source">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_OUT_STEREO" />
+                </mixPort>
+                <mixPort name="voip_rx" role="source"
+                         flags="AUDIO_OUTPUT_FLAG_VOIP_RX">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                           samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </mixPort>
+                <mixPort name="primary input" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO AUDIO_CHANNEL_INDEX_MASK_3"/>
+                </mixPort>
+                <mixPort name="hotword input" role="sink" flags="AUDIO_INPUT_FLAG_HW_HOTWORD" maxActiveCount="0" >
+                    <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"/>
+                </mixPort>
+                <mixPort name="incall capture" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO"/>
+                </mixPort>
+                <mixPort name="voice call rx" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO"/>
+                </mixPort>
+                <mixPort name="voip_tx" role="sink"
+                         flags="AUDIO_INPUT_FLAG_VOIP_TX">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
+                </mixPort>
+                <mixPort name="fast input" role="sink" flags="AUDIO_INPUT_FLAG_RAW AUDIO_INPUT_FLAG_FAST">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO"/>
+                </mixPort>
+                <mixPort name="mmap_no_irq_in" role="sink" flags="AUDIO_INPUT_FLAG_MMAP_NOIRQ">
+                    <profile name="" format="AUDIO_FORMAT_PCM_32_BIT"
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO"/>
+                </mixPort>
+                <mixPort name="hifi_playback" role="source" />
+                <mixPort name="hifi_input" role="sink" />
+                <mixPort name="echo_ref_input" role="sink">
+                    <profile name="" format="AUDIO_FORMAT_PCM_32_BIT"
+                             samplingRates="48000"
+                             channelMasks="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">
+                </devicePort>
+                <devicePort tagName="Speaker" type="AUDIO_DEVICE_OUT_SPEAKER" role="sink">
+                </devicePort>
+                <devicePort tagName="Speaker Safe" type="AUDIO_DEVICE_OUT_SPEAKER_SAFE" role="sink">
+                </devicePort>
+                <devicePort tagName="Wired Headset" type="AUDIO_DEVICE_OUT_WIRED_HEADSET" role="sink">
+                </devicePort>
+                <devicePort tagName="Wired Headphones" type="AUDIO_DEVICE_OUT_WIRED_HEADPHONE" role="sink">
+                </devicePort>
+                <devicePort tagName="BT SCO" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO" role="sink">
+                </devicePort>
+                <devicePort tagName="BT SCO Headset" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET" role="sink">
+                </devicePort>
+                <devicePort tagName="BT SCO Car Kit" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT" role="sink">
+                </devicePort>
+                <devicePort tagName="USB Device Out" type="AUDIO_DEVICE_OUT_USB_DEVICE" role="sink">
+                </devicePort>
+                <devicePort tagName="USB Headset Out" type="AUDIO_DEVICE_OUT_USB_HEADSET" role="sink">
+                </devicePort>
+                <devicePort tagName="Aux Digital" type="AUDIO_DEVICE_OUT_AUX_DIGITAL" role="sink">
+                </devicePort>
+                <devicePort tagName="Telephony Tx" type="AUDIO_DEVICE_OUT_TELEPHONY_TX" role="sink">
+                </devicePort>
+                <!-- Input devices declaration, i.e. Source DEVICE PORT -->
+                <devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
+                </devicePort>
+                <devicePort tagName="Built-In Back Mic" type="AUDIO_DEVICE_IN_BACK_MIC" role="source">
+                </devicePort>
+                <devicePort tagName="Wired Headset Mic" type="AUDIO_DEVICE_IN_WIRED_HEADSET" role="source">
+                </devicePort>
+                <devicePort tagName="BT SCO Headset Mic" type="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET" role="source">
+                </devicePort>
+                <devicePort tagName="BT A2DP Out" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP" role="sink"
+                            encodedFormats="AUDIO_FORMAT_AAC AUDIO_FORMAT_SBC">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="44100 48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="BT A2DP Headphones" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES" role="sink"
+                            encodedFormats="AUDIO_FORMAT_AAC AUDIO_FORMAT_SBC">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="44100 48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="BT A2DP Speaker" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER" role="sink"
+                            encodedFormats="AUDIO_FORMAT_AAC AUDIO_FORMAT_SBC">
+                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                             samplingRates="44100 48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </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>
+                <!-- AUDIO_DEVICE_IN_VOICE_CALL and AUDIO_DEVICE_IN_TELEPHONY_RX are in the same value -->
+                <devicePort tagName="Voice Call And Telephony Rx" type="AUDIO_DEVICE_IN_VOICE_CALL" role="source">
+                </devicePort>
+                <devicePort tagName="Echo Ref In" type="AUDIO_DEVICE_IN_ECHO_REFERENCE" role="source">
+                </devicePort>
+            </devicePorts>
+            <!-- route declaration, i.e. list all available sources for a given sink -->
+            <routes>
+                <route type="mix" sink="Speaker"
+                       sources="primary output,deep buffer,haptic,raw,compressed_offload,mmap_no_irq_out,voip_rx,immersive_out"/>
+                <route type="mix" sink="Speaker Safe"
+                       sources="primary output,deep buffer,haptic,raw,compressed_offload,mmap_no_irq_out,voip_rx"/>
+                <route type="mix" sink="Earpiece"
+                       sources="primary output,deep buffer,haptic,raw,compressed_offload,mmap_no_irq_out,voip_rx"/>
+                <route type="mix" sink="BT A2DP Out"
+                       sources="primary output,deep buffer,haptic,compressed_offload,voip_rx,immersive_out"/>
+                <route type="mix" sink="BT A2DP Headphones"
+                       sources="primary output,deep buffer,haptic,compressed_offload,voip_rx,immersive_out"/>
+                <route type="mix" sink="BT A2DP Speaker"
+                       sources="primary output,deep buffer,haptic,compressed_offload,voip_rx,immersive_out"/>
+                <route type="mix" sink="USB Device Out"
+                       sources="primary output,deep buffer,haptic,raw,compressed_offload,mmap_no_irq_out,voip_rx,hifi_playback,immersive_out"/>
+                <route type="mix" sink="USB Headset Out"
+                       sources="primary output,deep buffer,haptic,raw,compressed_offload,mmap_no_irq_out,voip_rx,hifi_playback,immersive_out"/>
+                <route type="mix" sink="BT SCO"
+                       sources="primary output,deep buffer,haptic,compressed_offload,voip_rx"/>
+                <route type="mix" sink="BT SCO Headset"
+                       sources="primary output,deep buffer,haptic,compressed_offload,voip_rx"/>
+                <route type="mix" sink="BT SCO Car Kit"
+                       sources="primary output,deep buffer,haptic,compressed_offload,voip_rx"/>
+                <route type="mix" sink="Telephony Tx" sources="incall playback,voice call tx" />
+                <route type="mix" sink="primary input"
+                       sources="Built-In Mic,Built-In Back Mic,USB Device In,USB Headset In,BT SCO Headset Mic"/>
+                <route type="mix" sink="hotword input"
+                       sources="Built-In Mic,Built-In Back Mic,USB Device In,USB Headset In,BT SCO Headset Mic"/>
+                <route type="mix" sink="incall capture" sources="Voice Call And Telephony Rx" />
+                <route type="mix" sink="voice call rx" sources="Voice Call And Telephony Rx" />
+                <route type="mix" sink="voip_tx"
+                       sources="Built-In Mic,Built-In Back Mic,USB Device In,USB Headset In,BT SCO Headset Mic"/>
+                <route type="mix" sink="fast input"
+                       sources="Built-In Mic,Built-In Back Mic,USB Device In,USB Headset In"/>
+                <route type="mix" sink="mmap_no_irq_in"
+                       sources="Built-In Mic,Built-In Back Mic,USB Device In,USB Headset In"/>
+                <route type="mix" sink="hifi_input" sources="USB Device In,USB Headset In" />
+                <route type="mix" sink="echo_ref_input" sources="Echo Ref In"/>
+            </routes>
+        </module>
+        <!-- Bluetooth Audio HAL -->
+        <xi:include href="bluetooth_audio_policy_configuration_7_0.xml"/>
+        <!-- Usb Audio HAL -->
+        <module name="usbv2" 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>
+        <!-- Remote Submix Audio HAL -->
+        <xi:include href="r_submix_audio_policy_configuration.xml"/>
+    </modules>
+    <!-- End of Modules section -->
+    <!-- Volume section -->
+    <xi:include href="audio_policy_volumes.xml"/>
+    <xi:include href="default_volume_tables.xml"/>
+    <!-- End of Volume section -->
+</audioPolicyConfiguration>