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Date:      Thu, 9 Sep 1999 20:00:54 +0200 (CEST)
From:      Wilko Bulte <wilko@yedi.iaf.nl>
To:        freebsd-multimedia@freebsd.org
Subject:   SB16pnp second DMA channel?
Message-ID:  <199909091800.UAA01171@yedi.iaf.nl>

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Hi there,

I'm on a approx 3 days old 3.3-RC and decided to give pcm a try (instead
of snd). I wonder where the 2nd DMA is:

vga0: <Matrox MGA 2164W graphics accelerator> rev 0x00 int a irq 14 on
pci0.12.0
Probing for PnP devices:
CSN 1 Vendor ID: ALS0001 [0x01009305] Serial 0x01000000 Comp ID: @@@0000
[0x0000
0000]
pcm1 (SB16pnp <Avance Asound 100> sn 0x01000000) at 0x220-0x22f irq 9 drq 6
flag
s 0x13 on isa
Probing for devices on the ISA bus:

Kernel config file:

#Soundcard
#controller      snd0
#device sb0      at isa? port 0x220 irq 5 drq 1
#device sbxvi0   at isa? drq 5
#device sbmidi0  at isa? port 0x330

# Luigi's snd code (use INSTEAD of snd0 and all VOXWARE drivers!).
# You may also wish to enable the pnp controller with this, for pnp
# sound cards.  
#
controller pnp0
device pcm0     
#device pcm0 at isa? port ? tty irq 5 drq 1 flags 0x15

               ^--- this line reflects what I set the card to
		    using the alconfig.exe tool that came with the
		    card. Mtv sound is not 'smooth', it sounds like
		    it is gasping for breath ;-) My guess this is
		    because the 16bit DMA is not OK (??).      

As I don't pretend to understand this, what is it that I'm missing?

TIA,

Wilko
-- 
|   / o / /  _  	 Arnhem, The Netherlands	- Powered by FreeBSD -
|/|/ / / /( (_) Bulte 	 WWW  : http://www.tcja.nl 	http://www.freebsd.org


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