Messages in this thread | | | Subject | Re: driver for Creative Labs DVD kits | Date | Mon, 20 Apr 1998 14:06:34 -0300 | From | Andrew Veliath <> |
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I've started an attempt to work on one, but info is difficult to get on the Ziva DS CODEC chip (which Alan had tried to do for video4linux sometime back without success, but is very busy now with other things). So far I've been having to do a little reverse-engineering under Windows by maninipulating registers while playing a DVD. The first goal is to play unencrypted non-MPEG data from a hard disk file, then try to get the codec working, then CSS authentication, then to play DVD Video and then DVD navigation. It really needs help, since my time is limited (I'd setup a CVS repo or something, but I don't have any server space).
I have the data books I could find on the chips (Vxp524, AnP82, Bt865, etc) except for the Ziva DS MPEG-2 decoder, the Toshiba chip and one or two more I think, though I wasn't aware of the Universal DVD URL you give below (will check it out). I've got a driver structure loading, and some basic testing ioctls, though much time recently has been spent working under Windows to figure out what is going on with this card:
Apr 17 17:16:58 ztransform kernel: Creative Labs Encore Dxr2 DVD Decoder Driver Version 0.1 Apr 17 17:16:58 ztransform kernel: i2c: bus registered: encore Apr 17 17:16:58 ztransform kernel: encore: Auravision VxP524 at I/O 0xe3000000-0xe30fffff, remapped to 0xc487d000-0xc497cfff, IRQ 11
So far, I've got the structure down and am working on controlling the VxP524 to setup the VGA overlay and keys--though being at the end of the semester for the next two weeks I am quite busy. I do think that DVDs will become quite popular in the coming years though.
PS Gerd Knorr's I2C module (+ i2c.h) seems generic enough I would think to be a separate config option it would seem.
>>>>> Torgeir Veimo writes:
Torgeir> I'm interested in a linux driver for these kits. The Torgeir> Creative Labs DVD kit uses a card which is virtual Torgeir> identical to a Auravision Universal Reference design, for Torgeir> which complete specification is available.
Torgeir> Any information about work already done in this area is Torgeir> very welcome.
Torgeir> Relevant information:
Torgeir> http://www.auravision.com/public/designs/uni_DVD.htm Torgeir> http://www.auravision.com/public/products/524proc.htm Torgeir> http://www.c-cube.com/products/zivads.html
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