[Alsa-devel] Re: support for SAM940x based cards

[Uros Bizjak]

Pieter Palmers wrote:

Yes, I have working code to communicate with SAM9407 chip (microcode
loading,
memory management, channel allocation, control interface, etc) and I
have just start
working on PCM interface. Unfortunatelly, I haven't got any time to
implement
PCM routines, but all the low-level routines are in place. The code is
written for older
0.9.x version of ALSA (as I didn't yet port it to latest CVS).

If anybody is interested in helping with this project, I would gladly
share my (partially
functional) code. Code is tested with EWS64XL (PnP detection of SAM9407,
i2c stuff
and TEA chips are working OK), has many comments, and basically just
waits for someone to
"fill in the blanks" on PCM part.

I would surely be interested in this code. I think a lot of code can be shared between the cards. The transfer mechanism of the ISIS different, but I think it can fit into a general approach i.e. a generic driver for the SAM970x chip supported by an 'architecture dependant' driver.

I have prepared a snapshot of my sam9407 directory at www2.arnes.si/~krklubsls1/sam9407-19.Dec.2002-NW.tar.gz
This code has been in working state a couple of months ago, but now it is broken because of not-yet-finished PCM changes.

BTW: I have uploaded some documents found on various sites regarding sam9407 programming:
www2.arnes.si/~krklubsls1/TTFirm.ps
www2.arnes.si/~krklubsls1/progref.ps

And, there are linux drivers (OSS) - also for ISIS - on http://www.anime.net/~sam9407/

Uros.




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