Tools: Topology: Add deep buffer capture for DMIC #10393
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If DMIC0_DEEP_BUFFER is defined as true in topology build a deep buffer capture PCM is branched from module copier in DMIC0 capture pipeline. The patch adds a pipeline class deepbuffer-capture.conf and a topology .conf snippet dmic-deep-buffer.conf that is conditionally included from dmic-generic.conf. Signed-off-by: Seppo Ingalsuo <[email protected]>
This patch adds build of these development topologies: - sof-hda-generic-2ch-dmicdeepbuf.tplg - sof-hda-generic-4ch-dmicdeepbuf.tplg - sof-ptl-rt721-4ch-dmicdeepbuf.tplg Signed-off-by: Seppo Ingalsuo <[email protected]>
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@singalsu LGTM so far, do we need any kernel PRs to be merged ? |
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Yes, there is thesofproject/linux#5605 . Unfortunately there are glitches in capture about every 50 ms that need to be investigated. It's unlikely that the problem is in these PR's content but possibly a FW bug. There's some control code logic in host-copier for deep buffer playback DMA reload and might be that the rules are not suitable for capture as such. |
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