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sm8250-common: audio: Disable ULL mode
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 * Ultra low latency playback is currently broken. Crackling audio
   can be well noticed while playing WhatsApp audio messages or even
   during some games.

 * This patch routes all audio that normally used audio-ull-playback
   paths to low-latency-playback paths instead, thus meaning we're
   switching from ULL to LL mode.

Change-Id: I1f029d7df9a306f411598b0cffc536409cb2ae95
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@luk1337 @SebaUbuntu
luk1337 authored and SebaUbuntu committed Apr 22, 2021
1 parent 4fb85b4 commit 739dd66
Showing 1 changed file with 11 additions and 15 deletions.
26 changes: 11 additions & 15 deletions audio/audio_policy_configuration.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -61,10 +61,6 @@
<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_RAW|AUDIO_OUTPUT_FLAG_FAST">
<profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
<mixPort name="hifi_playback" role="source" />
<mixPort name="deep_buffer" role="source"
flags="AUDIO_OUTPUT_FLAG_DEEP_BUFFER">
Expand Down Expand Up @@ -180,27 +176,27 @@
</devicePorts>
<routes>
<route type="mix" sink="Earpiece"
sources="primary output,raw,deep_buffer,mmap_no_irq_out,voip_rx"/>
sources="primary output,deep_buffer,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Speaker"
sources="primary output,raw,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
sources="primary output,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Speaker Safe"
sources="primary output,raw,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
sources="primary output,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Wired Headset"
sources="primary output,raw,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
sources="primary output,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Wired Headphones"
sources="primary output,raw,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
sources="primary output,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Line Out"
sources="primary output,raw,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
sources="primary output,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="BT SCO"
sources="primary output,raw,deep_buffer,voip_rx"/>
sources="primary output,deep_buffer,voip_rx"/>
<route type="mix" sink="BT SCO Headset"
sources="primary output,raw,deep_buffer,voip_rx"/>
sources="primary output,deep_buffer,voip_rx"/>
<route type="mix" sink="BT SCO Car Kit"
sources="primary output,raw,deep_buffer,voip_rx"/>
sources="primary output,deep_buffer,voip_rx"/>
<route type="mix" sink="USB Device Out"
sources="primary output,raw,deep_buffer,compressed_offload,hifi_playback,mmap_no_irq_out,voip_rx"/>
sources="primary output,deep_buffer,compressed_offload,hifi_playback,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="USB Headset Out"
sources="primary output,raw,deep_buffer,compressed_offload,hifi_playback,mmap_no_irq_out,voip_rx"/>
sources="primary output,deep_buffer,compressed_offload,hifi_playback,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Telephony Tx"
sources="voice_tx,incall_music_uplink"/>
<route type="mix" sink="primary input"
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