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64 lines
4.3 KiB
64 lines
4.3 KiB
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!-- Copyright (c) 2023, Rockchip Electronics Co. Ltd. All rights reserved. -->
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<!-- -->
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<!-- Redistribution and use in source and binary forms, with or without -->
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<!-- modification, are permitted provided that the following conditions are -->
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<!-- met: -->
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<!-- * Redistributions of source code must retain the above copyright -->
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<!-- notice, this list of conditions and the following disclaimer. -->
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<!-- * Redistributions in binary form must reproduce the above -->
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<!-- copyright notice, this list of conditions and the following -->
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<!-- disclaimer in the documentation and/or other materials provided -->
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<!-- with the distribution. -->
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<!-- * Neither the name of The Linux Foundation nor the names of its -->
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<!-- contributors may be used to endorse or promote products derived -->
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<!-- from this software without specific prior written permission. -->
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<!-- -->
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<!-- THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED -->
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<!-- WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -->
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<!-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT -->
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<!-- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS -->
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<!-- BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -->
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<!-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -->
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<!-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR -->
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<!-- BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, -->
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<!-- OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN -->
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<!-- IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -->
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<!-- FE BE -->
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<!-- **** +-+ -->
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<!-- CPU1 - * * - | | - RT5651(Codec1) - Speaker/Mic -->
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<!-- * * | | |- Headphone/Headset -->
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<!-- * * | | |- LTE modem(Codec2) -->
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<!-- CPU2 - * * - | | - BT(Codec3) -->
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<!-- **** +-+ -->
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<!-- -->
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<!-- This diagram shows a simple audio subsystem. It supports Bluetooth, -->
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<!-- Speakers, Headset Jack, digital microphones and cellular modem. -->
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<!-- -->
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<!-- The RT5651 (card1 pcm0) and the BT (card0 pcm0) are connected to SoC -->
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<!-- via digital interfaces, and are configured as FE-BE dai link. While -->
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<!-- the LTE modem (card1 pcm0) is connected to RT5651 configured as -->
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<!-- Hostless-FE dai link, it's real BE is RT5651. -->
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<session>
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<devices>
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<device name="bt" snd_card="0" snd_pcm="0" type="VOICE_DAILINK_FE_BE"
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quirks="VOICE_DEVICE_CHANNEL_MONO_RIGHT"/>
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<device name="rt5651" snd_card="1" snd_pcm="0" type="VOICE_DAILINK_FE_BE"
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quirks="VOICE_DEVICE_ROUTE_STATIC_UPDATE"/>
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<device name="modem" snd_card="1" snd_pcm="1" type="VOICE_DAILINK_HOSTLESS_FE"
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backend="rt5651"/>
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</devices>
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<streams>
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<stream sink="modem" source="bt" route="AUDIO_DEVICE_OUT_ALL_SCO"/>
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<stream sink="bt" source="modem" route="AUDIO_DEVICE_OUT_ALL_SCO"
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quirks="VOICE_STREAM_CHANNEL_MONO_RIGHT"/>
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<stream sink="none" source="modem" route="AUDIO_DEVICE_OUT_WIRED_HEADSET"/>
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<stream sink="modem" source="none" route="AUDIO_DEVICE_OUT_WIRED_HEADSET"/>
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<stream sink="none" source="modem" route="AUDIO_DEVICE_OUT_WIRED_HEADPHONE"/>
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<stream sink="modem" source="none" route="AUDIO_DEVICE_OUT_WIRED_HEADPHONE"/>
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<stream sink="none" source="modem" route="AUDIO_DEVICE_OUT_SPEAKER"/>
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<stream sink="modem" source="none" route="AUDIO_DEVICE_OUT_SPEAKER"/>
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</streams>
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</session> |