Enable Copier Gain feature for DMIC interface#9537
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mwasko merged 2 commits intothesofproject:mainfrom Oct 4, 2024
Merged
Enable Copier Gain feature for DMIC interface#9537mwasko merged 2 commits intothesofproject:mainfrom
mwasko merged 2 commits intothesofproject:mainfrom
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Define common IPC4 Dmic blob structures Signed-off-by: Ievgen Ganakov <ievgen.ganakov@intel.com>
lgirdwood
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Oct 2, 2024
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LGTM, but can you also explain when/how DMA control IPC is used. Thanks
tlissows
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kv2019i
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Oct 3, 2024
| dai.out_fmt = &copier->out_fmt; | ||
| #if CONFIG_COPIER_GAIN | ||
| dai.apply_gain = true; | ||
| #endif |
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What happens when no configuration is passed from the host (like in case of Linux driver)? Unity gain applied? This seems to be enabled by default.
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@kv2019i Yes, unity gain applied (gain = 1)
tlissows
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Oct 3, 2024
Enable gain for DMIC interface. Configure gain feature with parameters received in DMIC BLOB. Add support for runtime DMIC gain parameters update using DMA Control IPC. Signed-off-by: Ievgen Ganakov <ievgen.ganakov@intel.com>
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tlissows
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lgirdwood
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dnikodem
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singalsu
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Looks OK to me. The dmic structs are same though here more detailed based on updated documentation vs. the other dmic.h. It could be cleaned up later to avoid duplication.
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Apply Copier Gain feature, introduced in #9323, to DMIC interface.
Add complete DMIC configuration blob definitions.
Use DMA Control IPC message to update gain coefficients in runtime.