136 lines
3.1 KiB
Plaintext
136 lines
3.1 KiB
Plaintext
# Low Power PCM Media Pipeline
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#
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# Low power PCM media playback with SRC and volume.
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#
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# Pipeline Endpoints for connection are :-
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#
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# host PCM_P --B0--> volume(0P) --B1--> SRC -- B2 --> Endpoint Pipeline
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#
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# Include topology builder
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include(`local.m4')
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#
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# Controls
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#
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# Volume Mixer control with max value of 32
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C_CONTROLMIXER(PCM PCM_ID Playback Volume, PIPELINE_ID,
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CONTROLMIXER_OPS(volsw, 256 binds the mixer control to volume get/put handlers, 256, 256),
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CONTROLMIXER_MAX(, 32),
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false,
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CONTROLMIXER_TLV(TLV 32 steps from -90dB to +6dB for 3dB, vtlv_m90s3),
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Channel register and shift for Front Left/Right,
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LIST(` ', KCONTROL_CHANNEL(FL, 1, 0), KCONTROL_CHANNEL(FR, 1, 1)))
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#
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# SRC Configuration
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#
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SectionVendorTuples."media_src_tokens" {
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tokens "sof_src_tokens"
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tuples."word" {
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SOF_TKN_SRC_RATE_OUT "48000"
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}
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}
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SectionData."media_src_conf" {
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tuples "media_src_tokens"
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}
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#
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# Components and Buffers
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#
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# Host "Low latency Playback" PCM uses pipeline DMAC and channel
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# with 2 sink and 0 source periods
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W_PCM_PLAYBACK(Media Playback, PIPELINE_DMAC, PIPELINE_DMAC_CHAN, 2, 0, 2)
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# "Playback Volume" has 2 sink period and 2 source periods for host ping-pong
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W_PGA(0, PIPELINE_FORMAT, 2, 2, 2, LIST(` ', "PCM PCM_ID Playback Volume"))
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# "SRC 0" has 2 sink and source periods.
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W_SRC(0, PIPELINE_FORMAT, 2, 2, media_src_conf, 2)
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# Media Source Buffers to SRC, make them big enough to deal with 2 * rate.
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W_BUFFER(0, COMP_BUFFER_SIZE(4,
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COMP_SAMPLE_SIZE(PIPELINE_FORMAT), PIPELINE_CHANNELS, SCHEDULE_FRAMES),
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PLATFORM_HOST_MEM_CAP)
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W_BUFFER(1,COMP_BUFFER_SIZE(4,
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COMP_SAMPLE_SIZE(PIPELINE_FORMAT), PIPELINE_CHANNELS, SCHEDULE_FRAMES),
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PLATFORM_COMP_MEM_CAP)
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# Buffer B2 is on fixed rate sink side of SRC. Set it 1.5 * rate.
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W_BUFFER(2, COMP_BUFFER_SIZE(3,
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COMP_SAMPLE_SIZE(PIPELINE_FORMAT), PIPELINE_CHANNELS, SCHEDULE_FRAMES),
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PLATFORM_COMP_MEM_CAP)
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#
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# Pipeline Graph
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#
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# PCM --B0--> volume --B1--> SRC --> B2 --> Endpoint Pipeline
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#
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SectionGraph."pipe-media-PIPELINE_ID" {
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index STR(PIPELINE_ID)
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lines [
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dapm(N_PCMP, Media Playback PCM_ID)
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dapm(N_BUFFER(0), N_PCMP)
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dapm(N_PGA(0), N_BUFFER(0))
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dapm(N_BUFFER(1), N_PGA(0))
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dapm(N_SRC(0), N_BUFFER(1))
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dapm(N_BUFFER(2), N_SRC(0))
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]
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}
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#
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# Pipeline Source and Sinks
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#
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indir(`define', concat(`PIPELINE_SOURCE_', PIPELINE_ID), N_BUFFER(2))
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#
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# Pipeline Configuration.
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#
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W_PIPELINE(N_SRC(0), SCHEDULE_DEADLINE, SCHEDULE_PRIORITY, SCHEDULE_FRAMES, SCHEDULE_CORE, 1, pipe_media_schedule_plat)
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#
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# PCM Configuration
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#
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# PCM capabilities supported by FW
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SectionPCMCapabilities.STR(Media Playback PCM_ID) {
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formats "S32_LE,S24_LE,S16_LE"
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rate_min "8000"
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rate_max "192000"
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channels_min "2"
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channels_max "2"
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periods_min "2"
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periods_max "32"
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period_size_min "192"
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period_size_max "262144"
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buffer_size_min "8388608"
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buffer_size_max "8388608"
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}
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# PCM Low Latency Playback and Capture
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SectionPCM.STR(Media Playback PCM_ID) {
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index STR(PIPELINE_ID)
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# used for binding to the PCM
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id STR(PCM_ID)
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dai.STR(Media Playback PCM_ID) {
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id STR(PCM_ID)
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}
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# Playback and Capture Configuration
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pcm."playback" {
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capabilities STR(Media Playback PCM_ID)
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}
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}
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