# Low Latency Pipeline and PCM # # Pipeline Endpoints for connection are :- # # host PCM_C <--B5-- volume(0C) <--B4-- source DAI0 # Include topology builder include(`utils.m4') include(`buffer.m4') include(`pcm.m4') include(`pga.m4') include(`mixercontrol.m4') # # Controls # # Volume Mixer control with max value of 32 C_CONTROLMIXER(PCM PCM_ID Capture Volume, PIPELINE_ID, CONTROLMIXER_OPS(volsw, 256 binds the mixer control to volume get/put handlers, 256, 256), CONTROLMIXER_MAX(, 40), 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, 0, 0), KCONTROL_CHANNEL(FR, 0, 1))) # # Components and Buffers # # Host "Low Latency Capture" PCM # with 0 sink and 2 source periods W_PCM_CAPTURE(PCM_ID, Low Latency Capture, 0, 2, 0) # "Capture Volume" has 2 sink and source periods for host and DAI ping-pong W_PGA(0, PIPELINE_FORMAT, 2, 2, 0, LIST(` ', "PCM PCM_ID Capture Volume PIPELINE_ID")) # Capture Buffers W_BUFFER(0, COMP_BUFFER_SIZE(2, COMP_SAMPLE_SIZE(PIPELINE_FORMAT), PIPELINE_CHANNELS, SCHEDULE_FRAMES), PLATFORM_DAI_MEM_CAP) W_BUFFER(1, COMP_BUFFER_SIZE(2, COMP_SAMPLE_SIZE(PIPELINE_FORMAT), PIPELINE_CHANNELS, SCHEDULE_FRAMES), PLATFORM_HOST_MEM_CAP) # # Pipeline Graph # # host PCM <--B1-- volume <--B0-- source DAI0 P_GRAPH(pipe-ll-capture-PIPELINE_ID, PIPELINE_ID, LIST(` ', `dapm(Low Latency Capture PCM_ID, N_PCMC(PCM_ID))', `dapm(N_PCMC(PCM_ID), N_BUFFER(1))', `dapm(N_BUFFER(1), N_PGA(0))', `dapm(N_PGA(0), N_BUFFER(0))')) # # Pipeline Source and Sinks # indir(`define', concat(`PIPELINE_SINK_', PIPELINE_ID), N_BUFFER(0)) indir(`define', concat(`PIPELINE_PCM_', PIPELINE_ID), Low Latency Capture PCM_ID) # # PCM Configuration # PCM_CAPABILITIES(Low Latency Capture PCM_ID, `S32_LE,S24_LE,S16_LE', 48000, 48000, 2, 4, 2, 4, 192, 16384, 65536, 65536)