[linux-dvb] [vdr] stb0899 and tt s2-3200

Igor M. Liplianin liplianin at tut.by
Thu Oct 23 02:07:05 CEST 2008


On 9 октября 2008, linux-dvb at linuxtv.org, Goga777 <goga777 at bk.ru> wrote:
> On Thursday 09 of October 2008, Goga777 wrote:
> > > > > > it's not working with SR 30000 FEC 3/4 dvb-s2 8PSK, still the
> > > > > > same problem.
> > > > > >
> > > > > > kind regards
> > > > > >
> > > > > > Newsy
> > > > >
> > > > > It seems that patch from
> > > > > http://www.linuxtv.org/pipermail/linux-dvb/2008-July/027264.html is
> > > > > not applied. The internal PLL must be disabled when setting new
> > > > > frequency as is written in stb6100 documentation.
> > > >
> > > > has your July-patch any relation with stb0899 patches from Alex Betis
> > > > ?
> > > >
> > > > http://www.linuxtv.org/pipermail/linux-dvb/2008-October/029455.html
> > > > http://www.linuxtv.org/pipermail/linux-dvb/2008-September/029361.html
> > > >
> > > > Goga
> > >
> > > I don't think so as Alex's patches are for demodulator (stb0899) but my
> > > was for tuner (stb6100).
> > >
> > > Regarding stb6100 doc the tuning procedure should be:
> > > 1. Disable PLL (LPEN_LPEN)
> > > 2. Set-up the tuner
> > > 3. Start PLL
> > > 4. Start VCO search
> > > 5. Wait for 5 ms
> > > 6. Disable VCO search, turn off VCO search clock and disable LPF BW
> > > clock
> > >
> > > The steps 1-5 should be done in 5 steps (not less) and as I remeber
> > > I've got better result when inserting small delay between steps 1 and 2
> > > and the delay from step 5 was set to 10ms. In stb6100.c are steps 1 and
> > > 2 done together within 1 write to stb6100 registers and this seems to
> > > be not optimal for some modulations.
> >
> > that's why TT3200 owners have to try both patches together - from you and
> > from Alex Betis ? is it correct ?
> >
> > Goga
>
> Yes, I think so, but now I'm not able to test it as I don't have the TT
> S2-3200 more in my PC. If nobody will be able to test it I'll try to do it
> this weekend.
>
> Regards,
>
> Ales
>
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Hi Ales

I (we all) need your signed-off-by line like this:

Signed-off-by: Your Name Here <your e-mail here>

It is necessary for future commit to v4l-dvb (and kernel) tree

I tested your patch and found it very useful, so thank you!

Igor



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