[linux-dvb] My Twinhan DVB-T CI won't tune

Manu Abraham manu at kromtek.com
Mon Jun 13 09:19:02 CEST 2005


Einar Bjarni Halldórsson wrote:
>>Einar Bjarni Halldórsson wrote:
>>>>>>Einar Bjarni Halldórsson wrote:
>>>>>>>Hi,
>>>>>>>
>>>>>>>I finally got my hands on a DVB card, and have started what is
>>>>>>>becoming
>>>>>>>a very interesting proccess of getting it to work. Had to jump
>>>>>>>through
>>>>>>>a
>>>>>>>couple of hoops to get the dst module to recognize it as a DVB-T and
>>>>>>>not
>>>>>>>a DVB-S (the default KnoppMyth R5A16 install wouldn't budge on this
>>>>>>>issue). Since then I've tried kernels 2.6.10 , 2.6.11.11 and
>>>>>>>2.6.12-rc5
>>>>>>>with the CVS version of dvb-kernel, but with similar results. The
>>>>>>>card
>>>>>>>get's recognized as a DVB-T and the CI module is recognized, but when
>>>>>>>I
>>>>>>>try to get dvbscan to do it's thing, I get "tuning failed" and a
>>>>>>>bunch
>>>>>>>of error messages in dmesg.
>>>>>>>
>>>>>>>I've seen people have similar problems in the mailing list archives,
>>>>>>>but
>>>>>>>I was wondering if there is any progress in finding a solution.
>>>>>>Which card model do you have ?
>>>>>>
>>>>>I have a TwinhanDTV Ter-CI
>>>>You have the Manufacturer and the Card type, but no Card model..
>>>>The card model starts with VP-XXXXXX
>>>>
>>>The card is a VP-3040
>>>
>>The VP-3040 is a bit different kind of card, as per my knowledge it has
>>a detachable add-on CA board, and can have TS188 as well as TS204 too.
>>
> 
> It has a separate add-on CA board that uses it's own PCI slot and is
> connected to the DVB card via flat cable.
>

I don't have this card with me except for it's description..

>>I need to add some more code to correctly identify this board..
>>Temporarily you can try force it to use TS188 (DST_TYPE_HAS_NEWTUNE) or
>>TS204 (without the NEWTUNE option) and see how it goes..
>>
> 
> How can I do that? It seems the dst_type_flags parameter has been removed
> from the dst module. If you mean I should hard-code it into the source,
> then I'm going to need some info on where it's set.
>

the type_flags were removed since at that point of time it was thought 
that type_flags could be automatically determined by the card type.

Well almost true, except for cards with removable CI slots, where the 
tuner could be different. This can be autodetected but, trying to make 
out a bit of mandarin.

>>Possibility is that probably the Tuner type will be the other case what
>>is exactly for you at the momemt and hence communication errors..
>>
>>Let me know how this goes .. You will need some more patches, i will
>>post it a while later in the night .. In the meantime you can check out
>>which tuner type works appropriate for you .. (You should not see any
>>i2c communication errors, except in the case of a very weak signal, if
>>you gone through the right steps)
>>
> 
> I will test anything you throw at me, and let you know how it goes. I


in the dst_tlist for your setup, for DTT-CI see the difference without 
the |DST_TYPE_HAS_NEWTUNE and with it also.

Try the same with the patches i posted earlier too..

Manu





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