Preliminary ATI TV Wonder bktr support

Justin Hibbits jrh29 at
Sun Aug 15 16:53:07 PDT 2004

Hash: SHA1

On Aug 13, 2004, at 05:58, Jonathan Belson wrote:

> Justin Hibbits wrote:
>> It's not complete (no sound yet, and no idea where to begin), but the 
>> ATI TV Wonder is now auto configured.  Source merged from OpenBSD.  
>> Since I'm not a regular FreeBSD hacker, I'm posting it here.  I hope 
>> it's the right list.
>> Anyway, maybe someone can figure out how to go from here, since I'm 
>> stuck now.  I'll continue working on it though.
> Are you in an an area where you get NICAM-encoded audio?  To enable
> NICAM decoding you need to write a register which (for some reason)
> isn't actually documented in the 878 datasheet.
> Also, different cards have different ideas which mux channel
> corresponds to which audio source, so you might have to experiment
> a bit.
> Cheers,
> --
> Jon

No idea if I get NICAM audio, I just have regular cable in the US 
(Adelphia cable in Ohio).  But, just in case, do you know what the 
register is?  Daniel O'Conner posted links for the bt878 chip specs, 
but I don't think that's exactly what I need, since I believe the 
FreeBSD bktr driver supports the 878 as a chip.  I need the specs for 
the TV Wonder, which I probably can't get without signing an NDA.  I'm 
looking through the Linux bttv driver, but that's little help.  The 
settings I tried using don't help at all, so it might be in the msp34xx 
driver.  I'll keep hacking on it, and see if I can get it working.

- -Justin
- --
"And now, if you'll excuse me, I'm in the middle of 15 things, all 
annoying" -- Lt. Cmdr Susan Ivanova, Babylon 5
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