# # Topology for i.MX8 with wm8960 codec for # keyword detection and triggering use case. # # 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(`sai.m4') # Include i.MX8 DSP configuration include(`platform/imx/imx8.m4') define(KWD_PIPE_SCH_DEADLINE_US, 20000) define(DMIC_16k_PCM_NAME, `SAI3') # This is for iMX8M PLUS # # PCM 0 <-------+- KPBM 0 <-- B0 <-- SAI3 (wm8960) # | # Keyword <-----+ 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 1 on PCM 0 using max 2 channels. # Schedule 1000us deadline on core 0 with priority 0 PIPELINE_PCM_ADD(sof/pipe-kfbm-no-lp-capture.m4, 1, 0, 2, s16le, KWD_PIPE_SCH_DEADLINE_US, 0, 0, 16000, 16000, 16000) # # DAIs configuration # dnl DAI_ADD(pipeline, dnl pipe id, dai type, dai_index, dai_be, dnl buffer, periods, format, dnl deadline, priority, core, time_domain) # This is for iMX8M PLUS # capture DAI is SAI3 using 2 periods # Buffers use s16le format, with 320 frame per 1000us on core 0 with priority 0 DAI_ADD(sof/pipe-dai-capture.m4, 1, SAI, 3, sai3-wm8960-hifi, PIPELINE_SINK_1, 2, s16le, KWD_PIPE_SCH_DEADLINE_US, 0, 0, SCHEDULE_TIME_DOMAIN_DMA) # keyword detector pipe dnl PIPELINE_ADD(pipeline, dnl pipe id, max channels, format, dnl period, priority, core, dnl sched_comp, time_domain, dnl pcm_min_rate, pcm_max_rate, pipeline_rate) PIPELINE_ADD(sof/pipe-detect.m4, 2, 2, s16le, KWD_PIPE_SCH_DEADLINE_US, 1, 0, PIPELINE_SCHED_COMP_1, SCHEDULE_TIME_DOMAIN_TIMER, 16000, 16000, 16000) # Connect pipelines together SectionGraph."pipe-sof-apl-keyword-detect" { index "0" lines [ # keyword detect dapm(PIPELINE_SINK_2, PIPELINE_SOURCE_1) dapm(PIPELINE_PCM_1, PIPELINE_DETECT_2) ] } # This is for iMX8M PLUS # # BE configurations - overrides config in ACPI if present # dnl DAI_CONFIG(type, dai_index, link_id, name, sai_config/ssp_config/dmic_config) DAI_CONFIG(SAI, 3, 0, sai3-wm8960-hifi, SAI_CONFIG(I2S, SAI_CLOCK(mclk, 12288000, codec_mclk_in), SAI_CLOCK(bclk, 3072000, codec_master), SAI_CLOCK(fsync, 16000, codec_master), SAI_TDM(2, 32, 3, 3), SAI_CONFIG_DATA(SAI, 3, 0)))