Re: [RFC PATCH v2 00/25] Virtio Sound card Implementation

[Stefano Garzarella]

Hi Shreyansh,

On Fri, Feb 11, 2022 at 11:18 PM Shreyansh Chouhan
<chouhan.shreyansh2702@gmail.com> wrote:
>
> The second RFC for implementing the VirtIO Sound card as described in
> the virtio specs. Sorry for the absence of activity on this.

Thanks for starting working on virtio-sound device for QEMU!
I'm interested in completing this work, but first I wanted to know if
you are still working on it or have any new updates.

Thanks,
Stefano

>
> The output from the sound card works.
>
> What remains to be done:
> - Features defined in PCM features. (Eg message polling)
> - Channel maps
> - Jack remaps
> - Input
>
> I will work on the input after I have implemented the output
> along with all the features since at that point it should just be a
> matter of reversing a few things in the code that writes the audio.
>
> I can work on this patchset mostly on weekends now but I will try to be
> more regular with this.
>
> Reviews are welcome :)
>
> Shreyansh Chouhan (25):
>   virtio-snd: Add virtio sound header file
>   virtio-snd: Add jack control structures
>   virtio-snd: Add PCM control structures
>   virtio-snd: Add chmap control structures
>   virtio-snd: Add device implementation structures
>   virtio-snd: Add PCI wrapper code for VirtIOSound
>   virtio-snd: Add properties for class init
>   virtio-snd: Add code for get config function
>   virtio-snd: Add code for the realize function
>   virtio-snd: Add macros for logging
>   virtio-snd: Add control virtqueue handler
>   virtio-snd: Add VIRTIO_SND_R_JACK_INFO handler
>   virtio-snd: Add stub for VIRTIO_SND_R_JACK_REMAP handler
>   virtio-snd: Add VIRTIO_SND_R_PCM_INFO handler
>   virtio-snd: Add VIRITO_SND_R_PCM_SET_PARAMS handle
>   virtio-snd: Add VIRTIO_SND_R_PCM_PREPARE handler
>   virtio-snd: Add default configs to realize fn
>   virtio-snd: Add callback for SWVoiceOut
>   virtio-snd: Add start/stop handler
>   virtio-snd: Add VIRTIO_SND_R_PCM_RELEASE handler
>   virtio-snd: Replaced goto with if else
>   virtio-snd: Add code to device unrealize function
>   virtio-snd: Add xfer handler
>   virtio-snd: Add event vq and a handler stub
>   virtio-snd: Replaced AUD_log with tracepoints
>
>  hw/audio/Kconfig               |    5 +
>  hw/audio/meson.build           |    1 +
>  hw/audio/trace-events          |   14 +
>  hw/audio/virtio-snd.c          | 1241 ++++++++++++++++++++++++++++++++
>  hw/virtio/meson.build          |    1 +
>  hw/virtio/virtio-snd-pci.c     |   72 ++
>  include/hw/virtio/virtio-snd.h |  383 ++++++++++
>  7 files changed, 1717 insertions(+)
>  create mode 100644 hw/audio/virtio-snd.c
>  create mode 100644 hw/virtio/virtio-snd-pci.c
>  create mode 100644 include/hw/virtio/virtio-snd.h
>
> --
> 2.31.1
>
>