[linux-dvb] [PATCH] Twinhan-fixes was --fix support for VisionPlus DTV (VP1020)

Manu Abraham manu at kromtek.com
Thu Apr 28 18:52:58 CEST 2005


Steffen Motzer wrote:
> Manu Abraham wrote:
> 
>> Can you check whether the attached patches works for you, for the
>> (VP-1020, 200103A) ?
> 
> 
> With my card tuning works fine. I have attached a patch that converts 

I will have to wait for the results from DST-CI too, as well as get to 
know whether my patch has any adverse effect on the Avermedia/hardware 
i2c based cards. It is better not to break support for existing card(s)..

> the strength and snr values returned by the asic. It seems that the asic 
> simply returns some registers of the tuner (STV0299B) without any 

Not all tuners are STV0299 based.. Only a few of them are STV0299 based.

> further processing.

Some more work is needed there. I will get back there once the initial 
round of fixes are there.
There is quite some more work to be done, before the signal processing 
stuff is ready to go into the driver.

> 
> I noticed something strange while making this patch: In dst_get_signal 
> the flag 0x10 in rxbuffer[6] used to be set, when the tuner had lost the 
> lock on the signal. This worked with older drivers but with the latest 
> driver the bit never gets set when the tuner no longer receives a signal.
> 

This is an interesting one, the same problem was reported to me by 
Frederic Cand a few days back, but in a different context regarding the 
CA interface. I was tracing what was in rxbuffer at that time.. This 
used to create some problems, in certain conditions..


Thanks..
Manu




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