Chip support for CS4270 and CS4265

Chip support for CS4270 and CS4265

[Steve deRosier]

All,

Does anyone know if the CS4270 and CS4265 are supported in Alsa?  I don't see either one on the matrix on the website, and also noted that ALL CS chips mentioned are listed as discontinued on Cirrus Logic's web site.

I took a brief look through the CVS web viewer and didn't see any mention of them either.  Does anyone know the status?

Thanks,
- Steve


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Re: Chip support for CS4270 and CS4265

[Clemens Ladisch]

Steve deRosier wrote:
> Does anyone know if the CS4270 and CS4265 are supported in Alsa?

These chips cannot be connected directly to a PCI (or similar) bus; they
expect audio data in a simple serial format and require some controller
chip that does DMA from/to the computer's memory.

The ALSA driver, if it existed, would be for this controller chip.

Do you have some particular sound card in mind?

> I don't see either one on the matrix on the website, and also noted
> that ALL CS chips mentioned are listed as discontinued on Cirrus
> Logic's web site.

Those are chips that have a PCI or ISA interface.


HTH
Clemens


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RE: Chip support for CS4270 and CS4265

[Steve DeRosier]

Thanks Clemens.  Makes perfect sense.  

No particular sound card in mind; Got someone working on an embedded design that will eventually run linux and this is what they're looking at puting in the audio portion.  Though I guess since the contract says they're responsible for the Alsa drivers I'm not going to worry about it; I just hope they understand what they're doing.  ;)

- Steve

-----Original Message-----
From: Clemens Ladisch [mailto:clemens@ladisch.de]
Sent: Friday, March 24, 2006 5:22 AM
To: Steve DeRosier
Cc: Alsa-Devel
Subject: Re: [Alsa-devel] Chip support for CS4270 and CS4265


Steve deRosier wrote:
> Does anyone know if the CS4270 and CS4265 are supported in Alsa?

These chips cannot be connected directly to a PCI (or similar) bus; they
expect audio data in a simple serial format and require some controller
chip that does DMA from/to the computer's memory.

The ALSA driver, if it existed, would be for this controller chip.

Do you have some particular sound card in mind?

> I don't see either one on the matrix on the website, and also noted
> that ALL CS chips mentioned are listed as discontinued on Cirrus
> Logic's web site.

Those are chips that have a PCI or ISA interface.


HTH
Clemens


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Re: Chip support for CS4270 and CS4265

[Martin Habets]

On Fri, Mar 24, 2006 at 07:37:01AM -0800, Steve DeRosier wrote:
> Thanks Clemens.  Makes perfect sense.  
> 
> No particular sound card in mind; Got someone working on an embedded design that will eventually run linux and this is what they're looking at puting in the audio portion.  Though I guess since the contract says they're responsible for the Alsa drivers I'm not going to worry about it; I just hope they understand what they're doing.  ;)

Just make sure they plan to support DMA! :)

Martin

> - Steve
> 
> -----Original Message-----
> From: Clemens Ladisch [mailto:clemens@ladisch.de]
> Sent: Friday, March 24, 2006 5:22 AM
> To: Steve DeRosier
> Cc: Alsa-Devel
> Subject: Re: [Alsa-devel] Chip support for CS4270 and CS4265
> 
> 
> Steve deRosier wrote:
> > Does anyone know if the CS4270 and CS4265 are supported in Alsa?
> 
> These chips cannot be connected directly to a PCI (or similar) bus; they
> expect audio data in a simple serial format and require some controller
> chip that does DMA from/to the computer's memory.
> 
> The ALSA driver, if it existed, would be for this controller chip.
> 
> Do you have some particular sound card in mind?
> 
> > I don't see either one on the matrix on the website, and also noted
> > that ALL CS chips mentioned are listed as discontinued on Cirrus
> > Logic's web site.
> 
> Those are chips that have a PCI or ISA interface.
> 
> 
> HTH
> Clemens


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Re: Chip support for CS4270 and CS4265

[Leonid]

Steve deRosier <derosier <at> pianodisc.com> writes:

> 
> All,
> 
> Does anyone know if the CS4270 and CS4265 are supported in Alsa?  I don't see
either one on the matrix on the
> website, and also noted that ALL CS chips mentioned are listed as discontinued
on Cirrus Logic's web site.
> 
> I took a brief look through the CVS web viewer and didn't see any mention of
them either.  Does anyone know the status?
> 
> Thanks,
> - Steve
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by xPML, a groundbreaking scripting language
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> 

I'd like to know as well, Steve... Did anybody answer? Leonid.




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Re: Re: Chip support for CS4270 and CS4265

[Lee Revell]

On Thu, 2006-03-30 at 02:30 +0000, Leonid wrote:
> Steve deRosier <derosier <at> pianodisc.com> writes:
> 
> > 
> > All,
> > 
> > Does anyone know if the CS4270 and CS4265 are supported in Alsa?  I don't see
> either one on the matrix on the
> > website, and also noted that ALL CS chips mentioned are listed as discontinued
> on Cirrus Logic's web site.
> > 
> > I took a brief look through the CVS web viewer and didn't see any mention of
> them either.  Does anyone know the status?
> > 
> > Thanks,
> > - Steve
> > 
> 
> I'd like to know as well, Steve... Did anybody answer? Leonid.

Yes, quoting Clemens Ladisch:

These chips cannot be connected directly to a PCI (or similar) bus; they
expect audio data in a simple serial format and require some controller
chip that does DMA from/to the computer's memory.

The ALSA driver, if it existed, would be for this controller chip.

Do you have some particular sound card in mind?

> I don't see either one on the matrix on the website, and also noted
> that ALL CS chips mentioned are listed as discontinued on Cirrus
> Logic's web site.

Those are chips that have a PCI or ISA interface.


HTH
Clemens

-Lee




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