Re: Adding Zoran 36710 MPEG support.

Hallo

Sorry for the late answer.

> I've got an embedded system that provides a ZR36710 and 36067 pair for MPEG1/2 
> decoding, and I'm looking at extending zoran_card.c and friends to support 
> it. The Vaddis chip connects to a CT69030 through its ZV port, so the chips 
> driver needs some tweaking too. I worked on the Vaddis before, so I'm 
> reasonably familiar with it.

>From what I've seen, it shouldn't make much difference to the unified zoran 
> driver whether it has a MJPEG or a MPEG slave. In my search for existing 
> work, I came across a message[1] by Ronald Bultje, which led to the MGA 
> driver[2] 

> and the unified zoran driver[3]. That mail mentions the zoran 
> driver has (had?) Vaddis support, which I can't find any trace of.. 
Why do you think so ? I think there was never a support for that in the 
zoran driver.

> Does anyone know of other work that might be useful to me?
No, sorry, nothing comes into my mind.

> The Matrox G200 driver has support for its DVD add-on card, which makes it a 
> pretty useful code base. I'd probably port some of that to a zr36710 module, 
> and use their i34 module for higher level interfacing.
> 
> Any advice on what might be the best approach for me to take?
Both drivers (Zoran and Matrox addon) were for different cards. The main 
difference from my point is that the zoran driver for the matrox addon 
board never made it into the linux kernel. So if you want to use a 
recent linux kernel using the zr36057/67 driver as base might be better.

auf hoffentlich bald,

Berni the Chaos of Woodquarter

Email: [email protected]
www: http://www.lysator.liu.se/~gz/bernhard

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