Where can I find some info about the DAI?

Where can I find some info about the DAI?

[Sedji Gaouaou]

Hi,

I am trying to write a DAI.
I am working with a wolfson wm8731 and an atmel at91sam9g20. Basically I 
had a look at the file eti_b1_wm8731.c, but I would like to use another 
ssc archi(atmel_ssc instead of at91_ssc).
So I would like to know where should I find some info concerning the DAI.

Regards,
Sedji

Re: Where can I find some info about the DAI?

[Liam Girdwood]

On Mon, 2008-09-08 at 11:02 +0200, Sedji Gaouaou wrote:
> Hi,
> 
> I am trying to write a DAI.
> I am working with a wolfson wm8731 and an atmel at91sam9g20. Basically I 
> had a look at the file eti_b1_wm8731.c, but I would like to use another 
> ssc archi(atmel_ssc instead of at91_ssc).
> So I would like to know where should I find some info concerning the DAI.
> 

Have you looked in Documentation/sound/alsa/soc ?

Liam

Re: Where can I find some info about the DAI?

[Sedji Gaouaou]

Hi Liam,
Liam Girdwood a écrit :

> Have you looked in Documentation/sound/alsa/soc ?
> 
> Liam
> 
> 

Yes, but I can't find anything regarding the cpu_dai. There some 
documentation about the codeac DAI, but nothing about the cpu one.
I was wondering if there is any update concerning this documentation?

Sedji

Re: Where can I find some info about the DAI?

[Liam Girdwood]

On Mon, 2008-09-08 at 11:30 +0200, Sedji Gaouaou wrote:
> Hi Liam,
> Liam Girdwood a écrit :
> 
> > Have you looked in Documentation/sound/alsa/soc ?
> > 
> > Liam
> > 
> > 
> 
> Yes, but I can't find anything regarding the cpu_dai. There some 
> documentation about the codeac DAI, but nothing about the cpu one.
> I was wondering if there is any update concerning this documentation?
> 

It's the same thing (struct) now. Documentation probably needs updated
to reflect this.

If you are starting a DAI driver from scratch then it's best to look at
the other CPU dai drivers as examples.

Liam

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Re: Where can I find some info about the DAI?

[Mark Brown]

On Mon, Sep 08, 2008 at 11:02:59AM +0200, Sedji Gaouaou wrote:

> I am trying to write a DAI.
> I am working with a wolfson wm8731 and an atmel at91sam9g20. Basically I 
> had a look at the file eti_b1_wm8731.c, but I would like to use another 
> ssc archi(atmel_ssc instead of at91_ssc).
> So I would like to know where should I find some info concerning the DAI.

There is some documentation in Documentation/sound/alsa/soc which may be
helpful.  It should also be useful to refer to existing drivers for
examples of how to do things - the PXA and S3C24xx architectures get
much of the attention here so are among the best places to look.

If you run into trouble please just ask here.