Re: [Xen-devel] vsnd issue

[Julien Grall <julien@xxxxxxx>]

On 25/11/2019 10:19, Peng Fan wrote:
> Hi All,
Hi,

> I am trying vsnd from xen-troops with xen 4.13 and Linux 5.4, but domu reports:
xen-troops is not part of Xen Project. Please contact the owner of the 
repo for any help here.
I have CCed Artem who should be able to point to the author of vsnd.

Best regards,

> aplay compl.mp3
> ALSA lib 
> ../../../alsa-lib-1.1.9/src/pcm/pcm_direct.c:1156:(snd1_pcm_direct_initialize_slave)
>  slave plugin does not support mmap interleaved or mmap noninterleaved access
> ALSA lib ../../../alsa-lib-1.1.9/src/pcm/pcm_dmix.c:1120:(snd_pcm_dmix_open) 
> unable to initialize slave
> aplay: main:828: audio open error: Invalid argument
>
> When executing aplay in domu, dom0 side log:
> root@imx8qmmek:~# 13.11.19 08:24:57.484 | XenEvtchn       | DBG - Event 
> received, port: 10
> 13.11.19 08:24:57.491 | StreamRing      | DBG - Request received, id: 
> alsa<hw:2;0>, cmd:9
> 13.11.19 08:24:57.500 | CommandHandler  | DBG - Handle command [QUERY_HW_PARAM]
> 13.11.19 08:24:57.508 | AlsaPcm         | DBG - Query pcm device hw:2,0 for HW 
> parameters
> 13.11.19 08:24:57.516 | CommandHandler  | DBG - Return status: [0]
> 13.11.19 08:24:57.523 | XenEvtchn       | DBG - Notify event channel, port: 10
> 13.11.19 08:24:57.531 | XenEvtchn       | DBG - Event received, port: 10
> 13.11.19 08:24:57.538 | StreamRing      | DBG - Request received, id: 
> alsa<hw:2;0>, cmd:9
> 13.11.19 08:24:57.546 | CommandHandler  | DBG - Handle command [QUERY_HW_PARAM]
> 13.11.19 08:24:57.554 | AlsaPcm         | DBG - Query pcm device hw:2,0 for HW 
> parameters
> 13.11.19 08:24:57.563 | CommandHandler  | DBG - Return status: [0]
> 13.11.19 08:24:57.570 | XenEvtchn       | DBG - Notify event channel, port: 10
> 13.11.19 08:24:57.577 | XenEvtchn       | DBG - Event received, port: 10
> 13.11.19 08:24:57.584 | StreamRing      | DBG - Request received, id: 
> alsa<hw:2;0>, cmd:9
> 13.11.19 08:24:57.593 | CommandHandler  | DBG - Handle command [QUERY_HW_PARAM]
> 13.11.19 08:24:57.601 | AlsaPcm         | DBG - Query pcm device hw:2,0 for HW 
> parameters
> 13.11.19 08:24:57.610 | CommandHandler  | DBG - Return status: [0]
> 13.11.19 08:24:57.616 | XenEvtchn       | DBG - Notify event channel, port: 10
> 13.11.19 08:24:57.624 | XenEvtchn       | DBG - Event received, port: 10
> 13.11.19 08:24:57.631 | StreamRing      | DBG - Request received, id: 
> alsa<hw:2;0>, cmd:9
> 13.11.19 08:24:57.640 | CommandHandler  | DBG - Handle command [QUERY_HW_PARAM]
> 13.11.19 08:24:57.647 | AlsaPcm         | DBG - Query pcm device hw:2,0 for HW 
> parameters
> 13.11.19 08:24:57.656 | CommandHandler  | DBG - Return status: [0]
> 13.11.19 08:24:57.663 | XenEvtchn       | DBG - Notify event channel, port: 10
> 13.11.19 08:24:57.671 | XenEvtchn       | DBG - Event received, port: 10
> 13.11.19 08:24:57.678 | StreamRing      | DBG - Request received, id: 
> alsa<hw:2;0>, cmd:9
> 13.11.19 08:24:57.686 | CommandHandler  | DBG - Handle command [QUERY_HW_PARAM]
> 13.11.19 08:24:57.694 | AlsaPcm         | DBG - Query pcm device hw:2,0 for HW 
> parameters
> 13.11.19 08:24:57.703 | CommandHandler  | DBG - Return status: [0]
> 13.11.19 08:24:57.709 | XenEvtchn       | DBG - Notify event channel, port: 10
>
>
> My xl.cfg:
>      vsnd = [
>          ['CARD, short-name=Main, sample-formats=s16_le;s8;u32_be',
>              'PCM, name=Main',
>                  'STREAM, unique-id=alsa<hw:2;0>, type=p',
>                  'STREAM, unique-id=alsa<hw:2;1>, type=c, channels-max=2'
>          ],
>      ]
>
> The audio device on my board:
> aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: imxaudmix [imx-audmix], device 0: HiFi-AUDMIX-FE (*) []
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 0: imxaudmix [imx-audmix], device 1: HiFi-AUDMIX-FE (*) []
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 1: cs42888audio [cs42888-audio], device 0: HiFi cs42888-0 [HiFi cs42888-0]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 1: cs42888audio [cs42888-audio], device 1: HiFi-ASRC-FE (*) []
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 2: wm8960audio [wm8960-audio], device 0: HiFi wm8960-hifi-0 []
>    Subdevices: 0/1
>    Subdevice #0: subdevice #0
>
> Is there something wrong in my configuration?
>
> Thanks,
> Peng.
>
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--
Julien Grall

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