Re: CMI-8338/Pci SoundPro

Re: CMI-8338/Pci SoundPro

[Gregory Maxwell]

As an update to my own message..
This card comes with a 2k dos com file which sets the dma/int/irq for sb16
compatibility. I dont think it's a TSR. 

I dont have a copy of dos around here and I can't mount my freedos image
to put the file there (dont have msdos kernel module.. :) )... I'm
reasonable sure I can just disassemble this executable and find the ports
it plays with.. :)

It should then work (though without the fancy features).


On Sat, 30 Jan 1999, Gregory Maxwell wrote:

> 
> Is there currently any work on supporting the CMI8338 PCI sound chip?
> 
> This sound chip support 4ch analog out, 2 chanel 24bit S/PDIF in/out, and
> various other nicities. It's ISA cousin was well supported in Linux (via
> the stock SB16 drive). Probably the nicest feature of this card is it's
> price: You can get these cards for $20 (with nice RCA S/PDIF output).
> 
> The page claims that it has legacy SB16 support via on board ISA DMA
> emulaton (which supposdity works under real dos). I havn't gotten it
> working under Linux yet, but I only spent about 5 seconds trying so far.
> 
> I'd like to see native support for it (to be able to use the full 24bit
> output, and all four channels), and I'd imagine that the company should be
> fairly open w/ specs. 
> 
> http://www.cmedia.com.tw/e_news3.htm
> 
> Thanks for any pointers.
> 
> 
> 
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Re: CMI-8338/Pci SoundPro

[Alan Cox]

> Is there currently any work on supporting the CMI8338 PCI sound chip?

Not that I know of.

> The page claims that it has legacy SB16 support via on board ISA DMA
> emulaton (which supposdity works under real dos). I havn't gotten it
> working under Linux yet, but I only spent about 5 seconds trying so far.

The DMA stuff should work. The way the transparent ISA DMA emulation works
is horribly sick but OS independant. PCI bridges output all bus cycles
to the PCI bus first. Unclaimed ones go to the ISA bus. This means a PCI
card can watch ISA DMA being programmed and work out what the user was
trying to do. It then issues its own PCI DMA operations for the same
addresses.

Alan


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Re: CMI-8338/Pci SoundPro

[Simon Weijgers]

> 
> Is there currently any work on supporting the CMI8338 PCI sound chip?
> 
Booting through dos works for me. Just load the dos drivers and loadlin
and insmod normal soundblaster drivers and you are ok.

Regards,

Simon Weijgers


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Re: CMI-8338/Pci SoundPro

[Gregory Maxwell]

Thanks!

Have you looked into getting specs for the native mode?

The dos trick is nice, but it wont work for me in the long run, as
ultmatly I want to use these cards in systems that boot off
disk-on-a-chip. :)

On Sun, 31 Jan 1999, Simon Weijgers wrote:

> > 
> > Is there currently any work on supporting the CMI8338 PCI sound chip?
> > 
> Booting through dos works for me. Just load the dos drivers and loadlin
> and insmod normal soundblaster drivers and you are ok.
> 
> Regards,
> 
> Simon Weijgers
> 


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