Re: Au1000 AC97 ALSA Driver

[Pete Popov <ppopov@mvista.com>]

Charles,

Awesome, thanks -- I'll take a look at it later. I was going to do this 
work soon so ... thanks :)

Pete

Charles Eidsness wrote:

> I've been testing this driver for a while now and I think I've worked 
> out most of the bugs.
>
> If any one's interested they can find the source code here:
> http://members.rogers.com/charles.eidsness/au1000.c
>
> A patch that adds the code plus edits the KConfig Makefiles here:
> http://members.rogers.com/charles.eidsness/au1000_alsa.patch
>
> To compile it as a module you'll probably need this little patch to 
> the au1000's dma.c.
> http://members.rogers.com/charles.eidsness/au1000_dma_module.patch
>
> In order for this driver to work you'll of course need the ALSA 
> drivers as well so it will only work on kernel 2.6+, unless you add 
> them to pre-2.6. I also recommend updating the ALSA drivers that come 
> with the kernel from 1.0.4 to the latest, all of my testing was 
> performed using ALSA drivers 1.0.5a, but it will probably run fine on 
> 1.0.4.
>
> In order to use most of the ALSA applications out there you will also 
> need an alsa.conf somewhere. You'll need to "export 
> ALSA_CONFIG_PATH=/....../alsa.conf" sometime too so all your apps know 
> where to find your alsa.conf file, like during boot (in .profile for 
> example). Here's the alsa.conf file I've been using.
> http://members.rogers.com/charles.eidsness/alsa.conf
>
> Cheers,
> Charles
>
>
> Pete Popov wrote:
>
>> On Sat, 2004-06-12 at 09:30, Charles Eidsness wrote:
>>
>>> I've been working on an ALSA driver for the Au1000 processor AC'97 
>>> port. Specifically for the DBAu1000 Merlot eval card. It seems to be 
>>> working in OSS emulation mode, I'm having a few problems setting up 
>>> my system to work in ALSA native mode, and it contains only a 
>>> minimum of features. i.e. it's still a work in progress, but I 
>>> thought there may be someone else out there interested in it.
>>>
>>> I've posted a patch that should add a mips sub-directory in the 
>>> sound directory of the 2.6.6 kernel and add an au1000 sound option 
>>> to the kernel configuration menu here: 
>>> http://members.rogers.com/charles.eidsness/au1000_alsa.patch
>>>
>>> Alternately you can find just the source code here:
>>> http://members.rogers.com/charles.eidsness/au1000.c
>>
>>
>>
>> Great -- let me know when the driver is ready to be checked in :)
>>
>> Pete
>>
>>
>>
>