From owner-freebsd-questions  Wed Mar  3 17:10:18 1999
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Date: Wed, 3 Mar 1999 20:09:44 -0500
From: "Donald J . Maddox" <dmaddox@conterra.com>
To: Erik Umenofer <eriku@silcom.com>
Cc: dmaddox@conterra.com, multimedia@FreeBSD.ORG,
	questions@FreeBSD.ORG
Subject: Re: DMA/IRC timeout on SB16
Message-ID: <19990303200944.A2133@dmaddox.conterra.com>
Reply-To: dmaddox@conterra.com
References: <36DC8CE5.E75C9A81@silcom.com> <19990303182655.C1295@dmaddox.conterra.com> <36DD6820.FF7B4A9A@silcom.com>
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In-Reply-To: <36DD6820.FF7B4A9A@silcom.com>; from Erik Umenofer on Wed, Mar 03, 1999 at 04:49:36PM +0000
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On Wed, Mar 03, 1999 at 04:49:36PM +0000, Erik Umenofer wrote:
> Donald J . Maddox wrote:
> 
> > I don't believe that the Vibra16x is supported by the VoxWare driver.
> > It is, however, supported by the pcm driver.  Pcm has no support for
> > MIDI, but it looks like you may have no choice.
> >
> > Try this in your kernel config:
> >
> > controller      pnp0
> > device          pcm0    at isa? port 0x220 tty irq 5 drq 1 flags 0x15 vector pcmintr
> >
> > On Wed, Mar 03, 1999 at 01:14:13AM +0000, Erik Umenofer wrote:
> > > Hi.
> > > I have a Vibra16x
> > > pnpinfo says...
> > > Checking for Plug-n-Play devices...
<SNIP>
> 
> I Read somewhere in the source that the Vibra16X is supported but the voxware drivers
> didn't know how to use it
> 
> I found some .c file in /usr/src/sys/i386/isa/sound/ that says something like
> 
> "this is for Vibra16x but i don't know how to set it..."

I think you saw that in /usr/src/sys/i386/isa/snd/ instead...  I can find no
mention whatsoever of the Vibra16X in the sound/ subdir.  I don't know what
would need to be hacked to add this support to VoxWare, but you might want
to take a closer look at the pcm driver's support for this card, either to
see how it's done and add it to the VoxWare driver, or to use it instead of
VoxWare.

> Then it sets the 16 bit DMA to >4 making it so if you use dma channel 1 and <4 it says
> that doesn't work. IT forces you to use DMA channels over 4 ie 5
> 
> Solution??
> 
> Find the code that restricts the 16 DMA to drq's over 4  since Vibra16x's use 3.
> 
> Obviously it can be done. BUT HOW???????
> 
> What file do i edit.? and what do i change??
> 
> A guy told me he edited a source file and got the voxware drivers to be happy with
> using the 3 DMA channel for 16 bit..
> 
> Tell me if i'm wrong. I think this can be down since it's just a limting factor in the
> code....
> 
> 


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