[Sound-open-firmware] [PATCH 3/3] topology: test: Add loopback topology

Liam Girdwood liam.r.girdwood at linux.intel.com
Tue Jun 19 12:57:28 CEST 2018 

On Tue, 2018-06-19 at 17:21 +0800, Xiuli Pan wrote:
> From: Pan Xiuli <xiuli.pan at linux.intel.com>
> 
> Loopback topology will enable SSP DAI loopback mode. This can loopback
> the SSP data.
> 
> Signed-off-by: Pan Xiuli <xiuli.pan at linux.intel.com>
> ---
> Work with patch set:
> SOF-Kernel(6):
>   ASoC: SOF: Add debug_mode flag in sof dev
>   ASoC: SOF: debug: add debugmode debugfs for sof_dev debug_mode
>   ASoC: SOF: uapi: topology: Add SOF_TKN_DAI_SSP_LBM for ssp loopback mode
>   ASoC: SOF: add headers for lbm control callback functions
>   ASoC: SOF: add lbm kcontrol callback functions
>   ASoC: SOF: topology: Add topology handler for dai ssp loopback mode
> 
> SOF(5):
>   dai: add lbm status for dai ssp
>   dai: add get_loopback_mode function
>   DMIC: add empty get_loopback_mode function
>   SSP: support for get/set_loopback_mode functions
>   dai: add dai_cmd support for loopback mode switch
> 
> SOF-Tools(3):
>   topology: Add SOF_TKN_DAI_SSP_LBM for ssp loopback mode
>   topology: m4: Add DAI_OUT_SSP_LOOPBACK marco for SSP LOOPBACK dai comp
>   topology: test: Add loopback topology
> 
> test & santity test with:
> Mininow max rt5651 and UP2 Hifiberry PRO and CNL nocodec
> SOF master: 48d2a1c551d7b3c8f76d44f3c04dd59a37ff6a8f
> SOF-Tool master: bd7dc88231f31d385340310cef467f211a739eeb
> https://github.com/plbossart/sound/tree/topic/sof-v4.14:
> 0d51a5ed28c5e97f09b59c4cafaddfb9d3b24b77
> ---
>  topology/sof/pipe-dai-loopback.m4 | 22 +++++++++
>  topology/test/test-loopback.m4    | 96
> +++++++++++++++++++++++++++++++++++++++
>  topology/test/tplg-build.sh       |  2 +-
>  3 files changed, 119 insertions(+), 1 deletion(-)
>  create mode 100644 topology/sof/pipe-dai-loopback.m4
>  create mode 100644 topology/test/test-loopback.m4
> 
> diff --git a/topology/sof/pipe-dai-loopback.m4 b/topology/sof/pipe-dai-
> loopback.m4
> new file mode 100644
> index 0000000..59d9af8
> --- /dev/null
> +++ b/topology/sof/pipe-dai-loopback.m4

This file is not needed if you reuse the standard DAI macros and add a new param
to them.

Liam

> @@ -0,0 +1,22 @@
> +# DAI Playback connector
> +
> +# Include topology builder
> +include(`utils.m4')
> +include(`dai.m4')
> +include(`pipeline.m4')
> +
> +#
> +# DAI definitions
> +#
> +W_DAI_OUT_SSP_LOOPBACK(DAI_TYPE, DAI_INDEX, DAI_BE, DAI_FORMAT, 0, 2, 2)
> +
> +#
> +# DAI pipeline - always use 0 for DAIs
> +#
> +W_PIPELINE(N_DAI_OUT, SCHEDULE_DEADLINE, SCHEDULE_PRIORITY, SCHEDULE_FRAMES,
> SCHEDULE_CORE, 0, pipe_dai_schedule_plat)
> +
> +#
> +# Graph connections to pipelines
> +
> +P_GRAPH(DAI_NAME, PIPELINE_ID,
> +	LIST(`		', `dapm(N_DAI_OUT, DAI_BUF)'))
> diff --git a/topology/test/test-loopback.m4 b/topology/test/test-loopback.m4
> new file mode 100644
> index 0000000..bc5e0ec
> --- /dev/null
> +++ b/topology/test/test-loopback.m4
> @@ -0,0 +1,96 @@
> +#
> +# Topology for pass through pipeline
> +#
> +
> +# Include topology builder
> +include(`dai.m4')
> +include(`utils.m4')
> +include(`pipeline.m4')
> +
> +# Include TLV library
> +include(`common/tlv.m4')
> +
> +# Include Token library
> +include(`sof/tokens.m4')
> +
> +# Include Baytrail DSP configuration
> +include(`dsps/byt.m4')
> +
> +#
> +# Machine Specific Config - !! MUST BE SET TO MATCH TEST MACHINE DRIVER !!
> +#
> +# TEST_PIPE_NAME - Pipe name
> +# TEST_DAI_LINK_NAME - BE DAI link name e.g. "NoCodec"
> +# TEST_DAI_PORT	- SSP port number e.g. 2
> +# TEST_DAI_FORMAT - SSP data format e.g s16le
> +# TEST_PIPE_FORMAT - Pipeline format e.g. s16le
> +# TEST_SSP_MCLK - SSP BCLK in Hz
> +# TEST_SSP_BCLK - SSP BCLK in Hz
> +# TEST_SSP_PHY_BITS - SSP physical slot size
> +# TEST_SSP_DATA_BITS - SSP data slot size
> +# TEST_SSP_MODE - SSP mode e.g. I2S, LEFT_J, DSP_A and DSP_B
> +#
> +
> +#
> +# Define the pipeline
> +#
> +# PCM0 <-- TEST_PIPE_NAME pipe --> SSP TEST_DAI_PORT
> +#
> +
> +# Passthrough playback pipeline 1 on PCM 0 using max 2 channels of s24le.
> +# Schedule 48 frames per 1000us deadline on core 0 with priority 0
> +# Use DMAC 0 channel 1 for PCM audio playback data
> +
> +PIPELINE_PCM_DAI_ADD(sof/pipe-TEST_PIPE_NAME-playback.m4,
> +	1, 0, 2, TEST_PIPE_FORMAT,
> +	48, 1000, 0, 0, 0, 1,
> +	TEST_DAI_TYPE, TEST_DAI_PORT, TEST_DAI_FORMAT, 2)
> +
> +
> +# Passthrough playback pipeline 2 on PCM 0 using max 2 channels of s24le.
> +# Schedule 48 frames per 1000us deadline on core 0 with priority 0
> +# Use DMAC 0 channel 1 for PCM audio playback data
> +
> +PIPELINE_PCM_DAI_ADD(sof/pipe-TEST_PIPE_NAME-capture.m4,
> +	2, 0, 2, TEST_PIPE_FORMAT,
> +	48, 1000, 0, 0, 0, 1,
> +	TEST_DAI_TYPE, TEST_DAI_PORT, TEST_DAI_FORMAT, 2)
> +
> +#
> +# DAI configuration
> +#
> +# SSP port TEST_DAI_PORT is our only pipeline DAI
> +#
> +
> +# playback DAI is SSP TEST_DAI_PORT using 2 periods
> +# Buffers use s24le format, with 48 frame per 1000us on core 0 with priority
> 0
> +DAI_ADD(sof/pipe-dai-loopback.m4,
> +	1, TEST_DAI_TYPE, TEST_DAI_PORT, TEST_DAI_LINK_NAME,
> +	PIPELINE_SOURCE_1, 2, TEST_DAI_FORMAT,
> +	48, 1000, 0, 0)
> +
> +# capture DAI is SSP TEST_DAI_PORT using 2 periods
> +# Buffers use s24le format, with 48 frame per 1000us on core 0 with priority
> 0
> +DAI_ADD(sof/pipe-dai-capture.m4,
> +	2, TEST_DAI_TYPE, TEST_DAI_PORT, TEST_DAI_LINK_NAME,
> +	PIPELINE_SINK_2, 2, TEST_DAI_FORMAT,
> +	48, 1000, 0, 0)
> +
> +# PCM Passthrough
> +PCM_DUPLEX_ADD(Passthrough, 3, 0, 0, PIPELINE_PCM_1, PIPELINE_PCM_2)
> +
> +#
> +# BE configurations - overrides config in ACPI if present
> +#
> +# Clocks masters wrt codec
> +#
> +# TEST_SSP_DATA_BITS bit I2S using TEST_SSP_PHY_BITS bit sample conatiner on
> SSP TEST_DAI_PORT
> +#
> +DAI_CONFIG(TEST_DAI_TYPE, TEST_DAI_PORT, 0, TEST_DAI_LINK_NAME,
> +	   SSP_CONFIG(TEST_SSP_MODE,
> +		      DAI_CLOCK(mclk, TEST_SSP_MCLK, codec_mclk_in),
> +		      DAI_CLOCK(bclk, TEST_SSP_BCLK, codec_slave),
> +		      DAI_CLOCK(fsync, 48000, codec_slave),
> +		      DAI_TDM(2, TEST_SSP_PHY_BITS, 3, 3),
> +		      SSP_SAMPLE_BITS(TEST_DAI_TYPE, TEST_DAI_PORT,
> +				      TEST_SSP_DATA_BITS)))
> diff --git a/topology/test/tplg-build.sh b/topology/test/tplg-build.sh
> index 6721768..facbe17 100755
> --- a/topology/test/tplg-build.sh
> +++ b/topology/test/tplg-build.sh
> @@ -12,7 +12,7 @@ export M4PATH="../:../m4:../common"
>  
>  # Simple component test cases
>  # can be used on components with 1 sink and 1 source.
> -SIMPLE_TESTS=(test-all test-capture test-playback)
> +SIMPLE_TESTS=(test-all test-capture test-playback test-loopback)
>  TONE_TEST=test-tone-playback
>  DMIC_TEST=test-capture
>  TEST_STRINGS=""

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