[BUG][CML] HDA Analog and HDA Digital pipeline will interact with each other

[ClarexZhou]

Describe the bug
HDA Analog aplay will has no audio output once start aplay on HDA Digital during aplaying on Analog.

To Reproduce

1. terminal 1 headset playback: aplay -Dhw:0,0 -f dat -c 2 audio.wav
2. terminal 2 HDA digital playback: aplay -Dhw:0,2 -f dat -c 2 audio.wav, check

Expected behavior
HDA Analog shouldn't be effected.

Actual result
Analog no audio output, restart aplay can output normally.

Log
logger_error.log
logger.log
dmesg.log

No obvious error log on sof-logger. Dmesg as below:

[ 3019.235287] sof-audio-pci 0000:00:1f.3: pcm: trigger stream 0 dir 0 cmd 1
[ 3019.235298] sof-audio-pci 0000:00:1f.3: ipc tx: 0x60040000: GLB_STREAM_MSG: TRIG_START
[ 3019.235636] sof-audio-pci 0000:00:1f.3: ipc tx succeeded: 0x60040000: GLB_STREAM_MSG: TRIG_START
[ 3019.235640] sof-audio-pci 0000:00:1f.3: In hda_link_pcm_trigger cmd=1
[ 3020.211918] sof-audio-pci 0000:00:1f.3: ipc rx: 0x90020000: GLB_TRACE_MSG
[ 3020.211945] sof-audio-pci 0000:00:1f.3: ipc rx done: 0x90020000: GLB_TRACE_MSG
[ 3021.800815] sof-audio-pci 0000:00:1f.3: pcm: trigger stream 1 dir 0 cmd 0
[ 3021.800833] sof-audio-pci 0000:00:1f.3: ipc tx: 0x60050000: GLB_STREAM_MSG: TRIG_STOP
[ 3021.800980] sof-audio-pci 0000:00:1f.3: ipc tx succeeded: 0x60050000: GLB_STREAM_MSG: TRIG_STOP
[ 3021.800993] sof-audio-pci 0000:00:1f.3: In hda_link_pcm_trigger cmd=0
[ 3021.801179] sof-audio-pci 0000:00:1f.3: pcm: free stream 1 dir 0
[ 3021.801191] sof-audio-pci 0000:00:1f.3: ipc tx: 0x60030000: GLB_STREAM_MSG: PCM_FREE
[ 3021.801304] sof-audio-pci 0000:00:1f.3: ipc tx succeeded: 0x60030000: GLB_STREAM_MSG: PCM_FREE
[ 3021.801532] sof-audio-pci 0000:00:1f.3: pcm: close stream 1 dir 0
[ 3022.711788] sof-audio-pci 0000:00:1f.3: ipc rx: 0x90020000: GLB_TRACE_MSG
[ 3022.711818] sof-audio-pci 0000:00:1f.3: ipc rx done: 0x90020000: GLB_TRACE_MSG
[ 3165.775880] sof-audio-pci 0000:00:1f.3: pcm: trigger stream 0 dir 0 cmd 0
[ 3165.775897] sof-audio-pci 0000:00:1f.3: ipc tx: 0x60050000: GLB_STREAM_MSG: TRIG_STOP
[ 3165.776043] sof-audio-pci 0000:00:1f.3: ipc tx succeeded: 0x60050000: GLB_STREAM_MSG: TRIG_STOP
[ 3165.776056] sof-audio-pci 0000:00:1f.3: In hda_link_pcm_trigger cmd=0
[ 3165.776230] sof-audio-pci 0000:00:1f.3: pcm: free stream 0 dir 0
[ 3165.776242] sof-audio-pci 0000:00:1f.3: ipc tx: 0x60030000: GLB_STREAM_MSG: PCM_FREE
[ 3165.776398] sof-audio-pci 0000:00:1f.3: ipc tx succeeded: 0x60030000: GLB_STREAM_MSG: PCM_FREE
[ 3165.776574] sof-audio-pci 0000:00:1f.3: pcm: close stream 0 dir 0

Test Recipe
Kernel repo | https://github.com/RanderWang/linux/tree/cml-validation-20190425

Made from:
f7e9d4a [thesofproject/linux: topic/sof-dev]

8a8e045 [RanderWang/linux: cml-validation-20190425]
62eaa40 [RanderWang/linux: cml-validation-20190425]
bf461fd [RanderWang/linux: cml-validation-20190425]
49bb879 [RanderWang/linux: cml-validation-20190425]
6af82dc [RanderWang/linux: cml-validation-20190425]
e54f292 [RanderWang/linux: cml-validation-20190425]
e026573 [RanderWang/linux: cml-validation-20190425]
3bdeae3 [RanderWang/linux: cml-validation-20190425]
cea87d5 [RanderWang/linux: cml-validation-20190425]

Firmware repo | https://github.com/RanderWang/sof/tree/cml-linux-20190425
Made from:
395a34e [thesofproject/sof: master]
279c995 [RanderWang/sof: cml-linux-20190425]
8598799 [RanderWang/sof: cml-linux-20190425]

Topology: | https://github.com/RanderWang/sof/tree/cml-linux-20190425
file: tools/topology/sof-hda-generic.m4, sof-hda-generic-2ch.tplg

Kconfig: | https://sof-ci-storage.sh.intel.com/daily/20190425/linux-2e945691-1/config-daily-hda-20190425

[mengdonglin]

To fix this issue:

1. Need fix for DMA coupled/decoupled mode
2. Need Realtek to check codec driver.

[plbossart]

@bardliao do you know what the digital output means? S/PDIF?
It'd be good to double-check with the legacy HDAudio driver, I wonder if this issue from from the codec itself or is an SOF issue with something interfering at the link DMA level.

[bardliao]

@plbossart Yes, I think it is S/PDIF. And there is no digital interface presented in legacy HDA driver.

[juimonen]

I have exactly similar behavior in my up2 when trying to playback and record at the same time. Stopping recording will stop the playback stream also. The dmesg looks exactly the same, like triggering stop would trigger another stop for the stream in another pcm, but same card... I would look are we coupling something in asoc layer that is causing the stop for other streams also.

[plbossart]

@juimonen can you try with NOCODEC and no SOF_HDA at all?
This behavior happened in the past and Rander fixed a number of issues a couple of weeks ago, wondering if we undid his work.

[bardliao]

@juimonen Could you check if #674 helps?

[juimonen]

@bardliao I have it on my tree, and so it doesn't help at least on my issue...