From mboxrd@z Thu Jan  1 00:00:00 1970
From: Takashi Iwai <tiwai@suse.de>
Subject: Re: CMI9739A
Date: Tue, 30 Nov 2004 11:09:52 +0100
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To: Zinx Verituse <zinx@epicsol.org>
Cc: alsa-devel@alsa-project.org
List-Id: alsa-devel@alsa-project.org

At Mon, 29 Nov 2004 20:05:25 -0600,
Zinx Verituse wrote:
> 
> [1  <text/plain; us-ascii (7bit)>]
> On Thu, Nov 25, 2004 at 05:18:57PM +0100, Takashi Iwai wrote:
> > At Wed, 24 Nov 2004 18:46:49 -0600,
> > Zinx Verituse wrote:
> > > 
> > > I recently purchased a motherboard with an on-board CMI9739A (or so it claims)
> > > 
> > > the id is: 0x434d4983
> > > 
> > > Unfortunately, simply adding the line:
> > > 
> > > { 0x434d4983, 0xffffffff, "CMI9739A",           patch_cm9739,   NULL },
> > > 
> > > causes the card to be muted, reguardless of the mixer, because of the init
> > > code in patch_cm9739 -- the init code apparently isn't compatible.
> > > 
> > > Removing the initialization code, but leaving the ops, gives a few more
> > > functional mixer options (like "Line-In as Surround" and "Mic as Center/LFE")
> > 
> > According to the datasheet, CM9739A is indeed compatible with 9739
> > except for pins.
> > 
> > Could you get the ac97 register dump of the good- and bad-running
> > states (from /proc/asound/card0/codec97#0/* files) ?
> > 
> > I guess the GPIO initialization (for using HP) is wrong there.  Doing
> > the following helps?
> > 
> > 	# echo 72 0001 > /proc/asound/card0/codec97#0/ac97#0-0+regs
> 
> Sorry it took so long to get back to you -- I've attached the following files:
> cmi9739a-working-ac97.txt       - output from working */codec97#0/ac97#0-0
> cmi9739a-working-ac97-regs.txt  - output from working */codec97#0/ac97#0-0+regs
> cmi9739a-muted-ac97.txt         - output from muted */codec97#0/ac97#0-0
> cmi9739a-muted-ac97-regs.txt    - output from muted */codec97#0/ac97#0-0+regs
> 
> attempting to write to ac97#0-0+regs with the following:
> 72 0001
> 0:72 0001
> 72=0001
> 72 = 0001
> 0:72 = 0001
> met with the error:
> -su: /proc/asound/card1/codec97#0/ac97#0-0+regs: No such device

Did you compile ALSA drivers with the debug option?


Takashi


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