Re: Miro DC30/DC10 Driver

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Hello,

using the default i2c setup from the spec is maybe not enough - as the
zorans need/deliver a specific timing. The very first code I had help of
an other guy who had luckily a dc10 and a i2c debugger. So he traced
directly the i2c bus during using the card under Win and sent me the i2c
register settings. 

Otherwise it might be not very easy. But maybe some debugger under Win
helps finding the i2c tables which are written to the ic's. But
Miro/Pnnacle drivers seem to use horrible code (I saw this in the DC1
and DC10 drivers - at least no optimizations or regular structures) -
maybe they do some reengineering tricks or they simply have lousy
programmers....

But starting with the zoran driver of Serguei plus looking at Martins
DC30 driver (the i2c devices) could be maybe already enough (?)

Bye,

Wolfgang

Steven Cockeram wrote:
> 
> Jon Pennington wrote:
> 
> > On Thu, Jan 18, 2001 at 10:03:12PM +0000, Steven Cockeram wrote:
> >
> >> I've got an old DC10 with the ZR36016, ZR36057, ZR36050 combination
> >> using a VPX3216 and MSE3000 for decoding and encodeing the analogue
> >> signal. I've found some datasheets on these - but it seems like a lot of
> >> work getting anything going.
> >
> >
> > Don't mind me; I'm a bit mad.  Are you not trying to use a Miro card?  Does your card have the ZR36057 or similar MJPEG stuffs that the Miro's have?  If so, why not work from the Unified driver?  If not, why are you starting here instead of the bttv or similar driver?
> >
> 
> The standard Miro DC10/DC10Plus use a philips SAA7110 for the analogue
> to digital decoding and a ZR36060 jpeg codec. My card uses the VPX3216
> and a combination of a ZR36050 and a ZR36016 for the jpeg stuff. This
> card is really a cut down DC30 (The board has DC30D printed on it), that
> was sold as a DC10.
> 
> I have played around with the Unified driver and I think that is where I
> may make some progress.  I need to find some VPX32XX i2c initialisation
> code. The spec sheet doesn't really go into this (albeit only after a
> first casual glance), whereas the SAA7110 spec sheet has example i2c
> code for different modes - probably the reason why progress has been
> made on this chip.
> 
> >
> >> I'd like to start off using some V4Linux driver and then adapting it.
> >> I've looked at the DC10plus driver and a (very old DC30) driver.
> >
> >
> > I'm sure I'm not the only one with these questions...
> >
> I'm sure I'm not the only one with this card - if anyone else has made
> progress I would be grateful to hear from them.
> 
> Steve.
> 
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