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