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Re: QVSS wscons driver

On Mon, 5 Jan 2015, Dave McGuire wrote:

On 01/03/2015 09:25 PM, Charles Dickman wrote:
I spent some of the Christmas break from work writing a wscons driver
for the QVSS (VCB01) video controller. qv.c in the NetBSD source tree
is ancient (from Ultrix?), so it was pretty much useless for anything
but a hardware reference. The video portion is based on the smg driver
and serial port/keyboard on the dz driver.

The board is split into two devices: wsdisplay attaches to qv for the
video portion and wskbd attaches to lkkbd attaches to qvaux for the
keyboard portion.

 Very nice work.  This is great to see.  Thank you!

Wish I had a VCB01...only have a busted VCB02. :(

The mouse is similar, but I don't have a DEC serial
mouse. You can see the boot messages below.

 No mouse?  Send me your shipping address in private mail.

Have spare keyboard too? The connectors are a pain to fit the flatflex cables in to.

Not sure if anybody else has the hardware to run it, but I can share.
It would be cool to get it into the NetBSD source tree, but it needs
some test and polish.

 Hardware to run it?!  Jeeze.  There are four or five such systems
within half an hour's drive of here (at different places) and probably
twenty machines here at my place. =)

I have all but the VCB01...right down to a working (and sharp!) monitor.

It may be academic now, but I have a few questions:

Are there schematics for this board? Google failed me here.

 I haven't seen them online.  I *might* have them on paper.  I will
have to dig.

Paul Anderson MIGHT have them somewhere, i'll ask about his schematics stash next time I contact him.

I'm using this with a KA650 processor, does the KA650 support the
VCB01 as a console?  It doesn't do it automatically with what I have

 I think it should, but I'm pretty sure the only framebuffer I've ever
used with a KA650 is a VCB02 so I can't say for certain.  What release
of firmware do you have on your KA650, is it possibly an older one?

Was it possible to upgrade the ROM easily?

 I know lots of stuff was added to the KA650s ROMs after they were
introduced, and I know the very early KA650 ROMs were little more than
the KA630 code re-jiggered to run on a KA650.  Dusty memories suggest
the KA650 was rushed to market before it was quite done; maybe the
earlier ROM code didn't do VCB01s.

IIRC i have images of both on my fileserver.


Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects

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