RE: Yuan MPC788 and MPC583

["Paul" <Paul@xxxxxxxxxxxxxxx>]

> -----Original Message-----
> From: CityK [mailto:CityK@xxxxxxxxxx] 
> Sent: 28 January 2008 17:05
> To: Paul
> Cc: video4linux-list@xxxxxxxxxx
> Subject: Re: Yuan MPC788 and MPC583
> 
> Paul wrote:
> > Hi All,
> >
> > I now have both these cards working up to a point, see 
> attached patch.
> > There are still a few problems though.
> >
> > 1 - MODULE LOADING ORDER
> > Unless tuner.ko is loaded first, the drivers will not work.
> > dmesg says "xc2028 4-0061: xc2028/3028 firmware name not set!".
> > I guess this is because of the cx88_call_i2c_clients in 
> cx88_card_setup.
> > Is there anyway around this?
> > Can I make cx8800.ko dependant on tuner.ko?
> >
> > 2 - ATSC IS UNRELIABLE
> > After the modules have been loaded, testing an ATSC stream with 
> > mplayer works first time.
> > Subsequent testing with mplayer sometimes works and sometimes fails.
> > This doesn't happen with the DVB card (mplayer works every time).
> > azap always works, but the time until it shows 'status 1f' varies 
> > considerable.
> > Any ideas what could be causing this?
> >
> > 3 - ANALOGUE TV AFTER DIGITAL TV
> > After testing ATSC or DVB with mplayer, analogue TV (using xawtv) 
> > stops working.
> > Once this happens, the only way to fix it is to reboot the computer.
> > Removing then reinstalling the modules does not help.
> > This fault is common to both cards.
> > Any thoughts on what is going wrong?
> >
> > The patch is for todays repository (v4l-dvb-b0815101889d.tar.bz2).
> > I doubt this patch will be any use to the main tree because of the 
> > change to zl10353.c.
> > I also had to comment a bit of tuner-xc2028.c as it was causing a 
> > segfault.
> 
> Paul,
> 
> In regards to the MPC583, I believe it is the same as the 
> Pinnacle 800i ( 
> http://www.linuxtv.org/wiki/index.php/Pinnacle_PCTV_HD_Card_%28800i%29
> ) which recently gained support via the work of C.Zhang and stoth.  
> Might want to compare your code to that for the 800i, as well 
> as review the many recent discussions for the board on the 
> dvb m/l for ideas towards the problems.

Hi CityK,

Thanks for the input.
Sadly, the 800i is not the same as the Yuan MPC583.
It has a different subsytem ID, uses a XC3028 and 'modprobe cx88xx
card=58' didn't work.
I also tried copying the 800i struct s5h1409_config to mine, which
stopped ATSC working altogether.

I did solve problem 2 though.
Adding '.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK'
fixed it.
Now, mplayer starts the stream first time every time.


Thanks
Paul


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