Re: CS-4231 on SS-5

[Mark Cave-Ayland]

On 13/08/2024 15:04, Peter Maydell wrote:

> On Tue, 13 Aug 2024 at 14:27, JF Sebastian <jfsebastian@null.net> wrote:
> > I'm currently emulating a SS-5 under QEMU on x86_64 Linux. From
> > what I could understand in the documentation, the sound chip, CS-4231.
> > The wiki https://www.qemu.org/docs/master/system/target-sparc.html
> > states "CS4231 sound device (only on SS-5, not working yet)".
>
> That documentation hasn't been edited in a long time, I suspect,
> so it is possible it's just out of date. Have you tried the
> sound and found that it does indeed not work ?
>
> Mark, do you know what the current status of sound on SS-5 is?

Last time I looked at this, I found that the CS4231 chip implementation in QEMU is 
simply a stub register block that is enough to allow various guest OSs to boot.

> > Any more information on what the current status is and the potential
> > stumbling blocks, if any?
>
> Without any further information, I would suspect the usual situation
> when some area of QEMU has not moved forward in many years: there is
> no active developer who cares enough about that specific thing to go
> and look at it.

Indeed: it's not something that has been requested by any clients or part of my 
personal use cases so I haven't spent any time on it to date. If you have access to a 
datasheet and are looking to sponsor development, feel free to contact me directly 
and we can continue the discussion there.


ATB,

Mark.