soft/topology/sof/pipe-passthrough-playback.m4

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# Low Latency Passthrough Pipeline and PCM
#
# Pipeline Endpoints for connection are :-
#
# host PCM_P --> B0 --> sink DAI0
# Include topology builder
include(`utils.m4')
include(`buffer.m4')
include(`pcm.m4')
include(`dai.m4')
include(`pipeline.m4')
#
# Components and Buffers
#
# Host "Passthrough Playback" PCM
# with 2 sink and 0 source periods
W_PCM_PLAYBACK(PCM_ID, Passthrough Playback, 2, 0, 2)
# Playback Buffers
W_BUFFER(0, COMP_BUFFER_SIZE(2,
COMP_SAMPLE_SIZE(PIPELINE_FORMAT), PIPELINE_CHANNELS, SCHEDULE_FRAMES),
PLATFORM_PASS_MEM_CAP)
#
# Pipeline Graph
#
# host PCM_P --> B0 --> sink DAI0
P_GRAPH(pipe-pass-playback-PIPELINE_ID, PIPELINE_ID,
LIST(` ',
`dapm(N_PCMP(PCM_ID), Passthrough Playback PCM_ID)',
`dapm(N_BUFFER(0), N_PCMP(PCM_ID))'))
#
# Pipeline Source and Sinks
#
indir(`define', concat(`PIPELINE_SOURCE_', PIPELINE_ID), N_BUFFER(0))
indir(`define', concat(`PIPELINE_PCM_', PIPELINE_ID), Passthrough Playback PCM_ID)
#
# PCM Configuration
#
PCM_CAPABILITIES(Passthrough Playback PCM_ID, COMP_FORMAT_NAME(PIPELINE_FORMAT), 48000, 48000, 2, 4, 2, 16, 192, 16384, 65536, 65536)