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Date:      Mon, 05 Apr 1999 00:44:05 +0900
From:      Motonori Shindo <mshindo@ascend.co.jp>
To:        luigi@labinfo.iet.unipi.it
Cc:        dkelly@HiWAAY.net, freebsd-multimedia@FreeBSD.ORG
Subject:   Re: Luigi's driver, AOpen AW37, and me.
Message-ID:  <19990405004405U.mshindo@ascend.co.jp>
In-Reply-To: <199811120457.FAA08973@labinfo.iet.unipi.it>
References:  <199811120457.FAA08973@labinfo.iet.unipi.it>

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Hi,

I've just bought an AOpen's AW37Pro(CS4235). I wished I could have
bought a CS4326/4327-based card but this was the only card I could
find that seemed to be closest to CS4236/4237. :-)

The card is detected by the kernel and it plays a sound but with
tremendous amount of noise. This would be exactly the same as what
David is experiencing. Is there any progress as to fix this problem? 
Given this situation, what is most likely the cause of this problem?
It would be great if anyone gives me a hint so that I can start
tracking down the problem by reading a data sheet of CS4235.

I'm running FreeBSD 3.1-RELEASE GENERIC kernel but with the following
addition:

controller pnp0  # this is required for PnP support
device pcm0 at isa ? port? tty irq 7 drq 1 vector pcmintr

and dmesg says:

Probing for PnP devices:
CSN 1 Vendor ID: CSCd925 [0x25d9630e] Serial 0xffffffff Comp ID: @@@0000 [0x00000000]
mss_attach <CS4235>1 at 0x530 irq 5 dma 1:3 flags 0x13
pcm1 (CS423x/Yamaha/AD1816 <CS4235> sn 0xffffffff) at 0x530-0x537 irq 5 drq 1 flags 0x13 on isa

Thans in advance!

From: Luigi Rizzo <luigi@labinfo.iet.unipi.it>
Subject: Re: Luigi's driver, AOpen AW37, and me.
Date: Thu, 12 Nov 1998 05:57:54 +0100 (MET)

> > Luigi Rizzo writes:
> > > > Ok, but wouldn't this be more consistant? Or am I missing something?
> > > > 
> > > >         case 0x25d9630e:        /* CS4235 */
> > > >         case 0x3700630e:        /* CS4237 */
> > > >             tmp_d.bd_id = MD_CS4237 ;
> > > 
> > > the former (which is wrong, the right one is in -stable and -current
> > > now) is there to remind me that they are different cards and I need to
> > > define a new bd_id for the CS4235
> > 
> > We're not quite there yet.
> ...
> > Probing for PnP devices:
> > CSN 1 Vendor ID: CSCd925 [0x25d9630e] Serial 0xffffffff Comp ID: @@@0000 [0x00000000]
> > mss_attach <CS4235>1 at 0x530 irq 9 dma 0:0 flags 0x14
> > pcm1 (CS423x/Yamaha <CS4235> sn 0xffffffff) at 0x530-0x537 irq 9 drq 0 flags 0x14 on isa
> 
> yes, something going wrong here. The high DMA channel has not been
> allocated.  pnpinfo output please.
> 
> > How about that? I sorta expected to see the card show up on IRQ 5. And 
> > either DRQ 1 or 3. Am sure I can make use of IRQ 5 for something. 
> 
> resources are assigned by the BIOS (or manually if you boot with -c)
> so in your case it seems that the BIOS sets the IRQ to 9, the output
> DMA channel to 0, and there is not another 8-bit DMA channel so the
> other one is unassigned (4 means none).
> 
> > Currently have most of my PCI cards on IRQ 15 to make room for this 
> > sound card.
> > 
> > The above yeilds the same poor audio reported earlier. Sounds like an
> > amplifier or D/A is being overdriven. Some sounds can be recognized. All
> 
> this is likely a format mismatch. With a given file, try catting it to
> /dev/dsp1, /dev/audio1, /dev/dspW1, one should work depending on your
> data format (unless you have stereo data...)

=====================================
Motonori Shindo
   Systems Engineer     
   Ascend Communications Japan K.K.   
   email: mshindo@ascend.co.jp
   TEL: +81-3-5325-7306 
=====================================


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