sof/tools/topology/sof-apl-eq-dmic.m4

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#
# Topology for Apollo Lake with direct attach digital microphones array
#
# Include topology builder
include(`utils.m4')
include(`dai.m4')
include(`pipeline.m4')
# Include TLV library
include(`common/tlv.m4')
# Include Token library
include(`sof/tokens.m4')
# Include Apollolake DSP configuration
include(`platform/intel/bxt.m4')
include(`platform/intel/dmic.m4')
#
# Define the pipelines
#
# PCM6 <---- EQ IIR <----- DMIC6 (DMIC01)
#
dnl PIPELINE_PCM_ADD(pipeline,
dnl pipe id, pcm, max channels, format,
dnl period, priority, core,
dnl pcm_min_rate, pcm_max_rate, pipeline_rate,
dnl time_domain, sched_comp)
# Passthrough capture pipeline 13 on PCM 6 using max 4 channels.
# 1000us deadline on core 0 with priority 0
PIPELINE_PCM_ADD(sof/pipe-eq-capture.m4,
1, 6, 4, s32le,
1000, 0, 0,
48000, 48000, 48000)
#
# DAIs configuration
#
dnl DAI_ADD(pipeline,
dnl pipe id, dai type, dai_index, dai_be,
dnl buffer, periods, format,
dnl deadline, priority, core)
# capture DAI is DMIC 0 using 2 periods
# Buffers use s32le format, 1000us deadline on core 0 with priority 0
DAI_ADD(sof/pipe-dai-capture.m4,
1, DMIC, 0, NoCodec-6,
PIPELINE_SINK_1, 2, s32le,
1000, 0, 0)
dnl PCM_DUPLEX_ADD(name, pcm_id, playback, capture)
dnl PCM_CAPTURE_ADD(name, pipeline, capture)
PCM_CAPTURE_ADD(DMIC01, 6, PIPELINE_PCM_1)
#
# BE configurations - overrides config in ACPI if present
#
dnl DAI_CONFIG(type, dai_index, link_id, name, ssp_config/dmic_config)
DAI_CONFIG(DMIC, 0, 6, NoCodec-6,
dnl DMIC_CONFIG(driver_version, clk_min, clk_mac, duty_min, duty_max,
dnl sample_rate, fifo word length, unmute time
dnl type, dai_index, pdm controller config)
DMIC_CONFIG(1, 500000, 4800000, 40, 60, 48000,
DMIC_WORD_LENGTH(s32le), 400, DMIC, 0,
PDM_CONFIG(DMIC, 0, FOUR_CH_PDM0_PDM1)))