dmic_config_blob Struct Reference

Complete configuration blob for Digital Microphone (DMIC) settings. More...

#include <src/include/ipc4/dmic.h>

Collaboration diagram for dmic_config_blob:

Data Fields
uint32_t	ts_group [4]
	Time-slot grouping mappings.
union dmic_global_cfg	global_cfg
	Global clock delay and fade parameters.
uint32_t	channel_ctrl_mask: 8
	PDM channels to program from channel_cfg.
uint32_t	clock_source: 8
	Clock source selection for DMIC.
uint32_t	rsvd: 16
	Reserved padding.
struct dmic_channel_cfg	channel_cfg [0]
	Variable-length channel configurations.
uint32_t	pdm_ctrl_mask
	Bitmask of active PDM controllers.
struct dmic_pdm_ctrl_cfg	pdm_ctrl_cfg [0]
	Variable-length PDM controller configurations.

Detailed Description

Complete configuration blob for Digital Microphone (DMIC) settings.

Contains time-slot mappings, global clock/ramp settings, channel routing, and per-PDM controller decimation parameters.

Field Documentation

channel_cfg

struct dmic_channel_cfg dmic_config_blob::channel_cfg[0]

Variable-length channel configurations.

channel_ctrl_mask

uint32_t dmic_config_blob::channel_ctrl_mask

PDM channels to program from channel_cfg.

clock_source

uint32_t dmic_config_blob::clock_source

Clock source selection for DMIC.

global_cfg

union dmic_global_cfg dmic_config_blob::global_cfg

Global clock delay and fade parameters.

pdm_ctrl_cfg

struct dmic_pdm_ctrl_cfg dmic_config_blob::pdm_ctrl_cfg[0]

Variable-length PDM controller configurations.

pdm_ctrl_mask

uint32_t dmic_config_blob::pdm_ctrl_mask

Bitmask of active PDM controllers.

rsvd

uint32_t dmic_config_blob::rsvd

Reserved padding.

ts_group

uint32_t dmic_config_blob::ts_group[4]

Time-slot grouping mappings.

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The documentation for this struct was generated from the following file:

• src/include/ipc4/dmic.h