[linux-dvb] Medion SAA7134 and DVB-S - How?

Hartmut Hackmann hartmut.hackmann at t-online.de
Wed Nov 8 01:26:05 CET 2006


Hi

hermann pitton wrote:
> Hi,
> 
> Am Dienstag, den 07.11.2006, 20:21 +0000 schrieb Chris Winger:
> 
>>hermann pitton schrieb:
>>
>>>Hi!
>>>
>>>Am Dienstag, den 07.11.2006, 00:35 +0100 schrieb Hartmut Hackmann:
>>>  
>>>
>>>>Hi
>>>>
>>>>Chris Winger wrote:
>>>>    
>>>
>>>[...]
>>>  
>>>
>>>>>If I start kaffeine, I get DVB-T to work. Kaffeine recognisez the card as:
>>>>>Using DVB device 0:0 "Philips TDA10046H DVB-T"
>>>>>
>>>>>Why TDA10046H instead of FMD1216ME?
>>>>>
>>>>>      
>>>>
>>>>TDA10046 is the channel decoder which is the "center of the frontend": Thats
>>>>correct.
>>>>
>>>>    
>>>>
>>>>>Why is there no other device for DVB-S available?
>>>>>
>>>>>      
>>>>
>>>>Hm, does anybody know which channel decoder and tuner are used in the DVB-S
>>>>section?
>>>>    
>>>
>>>Remember, we had this one on the video4linux-list.
>>>
>>>It has a conventional DVB-S can tuner, likely covered by dvb-pll or easy
>>>to add, at least all questions were asked.
>>>
>>>The problem was the not yet supported tda10086 channel decoder.
>>>
>>>This has changed and also no problems with the dual PCI bridge are
>>>expected, except Mike took care to disable it ;)
>>>
>>>Should be worth to dig it out.
>>>
>>>Cheers,
>>>Hermann
> 
> 
>>>  
>>
>>Hi,
>>Are you referring to this thread?
>>https://www.redhat.com/mailman/private/video4linux-list/2006-August/msg00386.html
>>Just for clarification: My card is part of the Medion MD8386 PC, it's 
>>not the MD8800 Quad card.
> 
> 
> no, 
> I'm referring to Serdar Dere and the Medion CTX925_V.1 DVB-T/TV/DVB-S
> http://marc.theaimsgroup.com/?l=linux-video&m=112033921222922&w=2
> 
> 
>>I also found this:
>>http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc7/2.6.18-rc7-mm1/broken-out/git-dvb.patch
>>
>>but honestly I don't know how to aply that...
> 
> 
> There are no patches yet, neither for the Medion Quad nor for your card
> to get DVB-S working, but the components are likely supported.
> 
> In your case there are two saa7134 PCI bridges, which behave like two
> seperate PCI cards in the special blue PCI slot.
> 
> The 16be:0005 bridge is assumed to handle DVB-S and has a tda10086ht
> channel decoder and Andrew recently wrote support for it.
> 
> Your DVB-S tuner is labeled as SD1878/SHA. Should be the same like here.
> http://www.knc1.com/img/presse_big/karte_tv_star_dvb_s.jpg
> 
> And there were these patches recently to support it.
> http://www.linuxtv.org/pipermail/linux-dvb/2006-January/007511.html
> 
> So this looks not bad, but maybe Hartmut can explain a little, what are
> the difficulties with two PCI bridges and two frontends.
> 
> Cheers,
> Hermann
> 
> 
> Sorry, typo in Hartmut's address. Resent.
> 
>
In this case, there should be no problem. The 2 PCI bridges make 2
logically separate cards (as long as there are no funny things with
the IRQ routing). If we have all components (channel decoder, tuner
and LNB controller) supported, we should have a close look.

Hartmut





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