cvs commit: src/sys/dev/fdc fdc_isa.c

[Wilko Bulte]

On Thu, Sep 02, 2004 at 01:44:41PM -0700, Peter Wemm wrote..
> On Wednesday 01 September 2004 06:47 am, Doug Rabson wrote:
> > On Tue, 2004-08-31 at 21:38, Wilko Bulte wrote:
> > > On Tue, Aug 31, 2004 at 08:37:10PM +0000, Warner Losh wrote..
> > >
> > > > imp         2004-08-31 20:37:10 UTC
> > > >
> > > >   FreeBSD src repository
> > > >
> > > >   Modified files:
> > > >     sys/dev/fdc          fdc_isa.c
> > > >   Log:
> > > >   When ISA_PNP_PROBE is called, it will return 0 when it finds a
> > > > device, ENOENT when there's no PNP ID for this device node, or
> > > > ENXIO when there is one, but it doesn't match.
> > > >
> > > >   In the nonPNP case (as most Alpha systems appear to be), we
> > > > were
> > >
> > > I think no Alpha has PNP.
> >
> > All alphas with ISA busses support ISA PnP. I used to use it with an
> > old ISA PnP sound card in my 164lx.
> 
> Exactly.  Firmware support isn't required.  ISA-PnP is a hardware level 
> protocol.  You can plug an isa-pnp card into any machine with physical 
> isa slots and have to use the isapnp interface to wake the card, probe 
> it, assign irqs etc.  On PC's, this is typically done by the bios for 

OK, maybe I should have said that (AFAIK..) there is nothing in SRM
that would do that on Alphas.

DEC did not have too many ISA cards for Alphas as far as I remember.
EISA cards were used (Adaptec 174x, 274x, Compaq Qvision VGA, 
DEFAA (?) fddi, DE42x ethernet is what comes to mind.

-- 
Wilko Bulte				wilko at FreeBSD.org