[Sound-open-firmware] Status of ssp driver in Qemu

[Daniel Baluta]

On Fri, Dec 20, 2019 at 11:31 AM Liam Girdwood
<liam.r.girdwood at linux.intel.com> wrote:
>
> On Wed, 2019-12-18 at 21:24 +0000, Daniel Baluta wrote:
> > Hi Liam,
> >
> > I wonder what is the status of the SSP driver in Qemu. Particularly,
> > I'm interested
> > about ssp->tx.fd / ssp->rx.fd.
> >
> > It looks like these files are only opened and closed but never
> > written to / read from.
> >
> > Can you explain what is your idea on emulating the DAIs on Qemu?
>
> The intention is to be able to perform file IO for SSP IO. i.e. SSP
> playback would write to a file and SSP capture would read from a file.
> This worked in a early version prior to upstreaming, but it was a hack
> that needed cleaning up (still TODO).
>
> Using file IO for DAI emulation means we can script and more easily
> validate input/output data from any processing.

Thanks! Do you still have the patches? The upstream version doesn't do
and read/write now and I was confused about what's the purpose of
just opening the files :).