Subject: Re: SBUS wierdies!
To: Andrew Brown <atatat@atatdot.net>
From: Tim Walls <tim.walls@pa.press.net>
List: port-sparc
Date: 01/05/2001 16:35:23
on 4/1/01 5:50 am, Andrew Brown at atatat@atatdot.net wrote:
>>> it sounds a little like a serial card i've got.  mine identifies
>>> itself as a csfour, is made by aurora technologies, and has a cd2401
>>> for the four serial ports.  who makes yours?
>>> 
>> Might be close, might not.  Spif is a Sun (OEM'd?) card based on an old
>> CD180 chip (not cd1800), and has a weird way of handling DTR.  Either way,
>> a driver already exists for this in OpenBSD (sys/arch/sparc/dev/spif*).
>> Would be easy enough to port it I suspect.  The only thing that doesn't
>> work is the parallel port, and that's partly out of laziness on my part.
> 
> oh, really?   hmm...i think i'll go have a look at that.  :)

I had a brief burst of enthusiasm trying to get this card to work
about a year ago (with 1.4.something,) and ever since then haven't
found 5 minutes of spare time to actually get on with it <sniff>.

If anyone wants the source I've got - assuming I can still find it [1] -
for hints and/or a guide how not to do it,
send me an email to   tim@snowgoons.fsnet.co.uk   and I'll send it on
when I next pick up my home email!!

I had the thing detected and attaching OK, but could never get it to
actually squirt any bits down the ports.  Things were complicated
slightly by the fact that it uses the same interrupt as the audio
device (in my Sparc Classic, at least,) and the audio device isn't
at all keen on sharing its interrupts...

Cheers,
Tim.

(I think it was the aforementioned OpenBSD driver I was working from,
FWIW.)


[1] Word to the wise - don't bother using LFS under 1.4.something unless
    you are a masochist; I've lost count of the number of times I've
    had to rebuild my homes partition.  Why I continue to use it I have
    no idea ;-).

-- 
Tim Walls