| # SOF DMIC configuration options |
| |
| # Copyright (c) 2022 Intel Corporation |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config DAI_INTEL_DMIC |
| bool "Intel digital PDM microphone driver support for DAI interface" |
| help |
| Enable Intel digital PDM microphone driver for DAI interface |
| |
| if DAI_INTEL_DMIC |
| |
| choice |
| prompt "Driver operation mode" |
| default DAI_INTEL_DMIC_NHLT |
| help |
| The driver can support two operation modes. |
| 1. A HW registers dump blob that is passed via IPC |
| 2. DAI tokens those describe the use case PCM format |
| and PDM bus and microphone parameters |
| |
| config DAI_INTEL_DMIC_NHLT |
| bool "Use NHLT DMIC blob" |
| help |
| All registers configuration is retrieved from blob. The |
| number of channels, sample rate, and PCM format are |
| defined in the blob and there are no runtime made |
| configuration choices. |
| |
| config DAI_INTEL_DMIC_TPLG_PARAMS |
| bool "Use parameters from topology - WIP" |
| help |
| All registers configuration is computed on the fly |
| based on use case and microphone datasheet parameters |
| and topology defined PCM format. The parameters are |
| easy to to customize in the topology. |
| WORK IN PROGRESS, not enabled in the driver yet |
| |
| endchoice |
| |
| config DAI_DMIC_HAS_OWNERSHIP |
| bool "Use DMIC ownership claim/release" |
| default n |
| help |
| a feature introduced in ACE1.5 hardware |
| dmic ownership must be claimed before use of dmic |
| |
| config DAI_DMIC_HAS_MULTIPLE_LINE_SYNC |
| bool "Use DMIC sync for multiple lines" |
| default n |
| help |
| a feature introduced in ACE1.5 hardware |
| dmic sync registers must be set before use of dmic |
| |
| config DAI_DMIC_HW_CONTROLLERS |
| int "Number of hardware controllers in the system" |
| default 2 |
| |
| config DAI_DMIC_HW_FIFOS |
| int "Number of stream FIFOs in DMIC controller" |
| default 2 |
| |
| config DAI_DMIC_HW_IOCLK |
| int "IO Clock value for DMIC" |
| default 19200000 |
| |
| config DAI_DMIC_PLATFORM_SYNC_PERIOD |
| int "Sync period per platform" |
| default 4000 |
| help |
| DMIC sync period used for: |
| CONFIG_DAI_DMIC_HW_IOCLK / CONFIG_DAI_DMIC_PLATFORM_SYNC_PERIOD |
| From spec: E.g. for 19.2 MHz XTAL oscillator clock, 4 KHz sync period, |
| the value to be programmed is 4799 (12BFh) |
| |
| endif |
