Re: FIX: soundblaster rear channels (ens1371)

[Takashi Iwai <tiwai@suse.de>]

At Fri, 17 Jan 2003 11:23:42 +0100,
Pieter Palmers wrote:
> 
> > Uros has been working on the ALSA SAM9407 driver, and IIRC, maxi ISIS
> > uses a similar (same?) chip.  he might be able to help the development
> > of this driver.
> >
> The ISIS uses the successor of the SAM9407, the SAM9707. Differences seem to 
> be minor (only the fact that it supports 6 extra channels).
> 
> The problem is that it is an ISA chip, and they used a 'creative' way of 
> building a PCI card with it: They built a card based on the ESS Maestro-2EM, 
> which is an Maestro-2E with an additional 'modem dsp' port, i.e. an ISA port. 
> They used this port to connect the SAM chip.
> 
> So actually it would be helpfull if I had someone with ESS Maestro experience. 
> I'm wondering if it's possible to set up a DMA transfer to the modem port. 
> The Maestro is (in my opinion) a pretty compicated device so I think it might 
> be possible.
> Any Maestro-connaiseurs on this list?

well, i'm the maintainer of es1968 driver, but the driver is atm not
well maintained.  the chip is yes a bit complicated but the problem is
lack of proper documents.  there is a data sheet but it doesn't
describe any essential parts.  and we have only a crappy buggy DOS
example code...

anyway, please let me know if you have any questions.


ciao,

Takashi


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