Re: DVBSky T980C CI issues (kernel 4.0.x)

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Hi Jurgen,

Ah, that's interesting. My T980C (and based on printout from Torbjörn
his as well) have Si2168-A20 chips.

Some things I'd like to understand:
- is there a difference if the CI slot is populated or not?
- is there any difference between the different firmwares?
- does it work with the DVBSky provided driver?
- when you say it doesn't work, is the issue that the demodulator does
not lock on the DVB-T2 muxes?

Two different firmwares for A30 chip:
https://github.com/OpenELEC/dvb-firmware/blob/18b12de1f57b3c70a681983638989f94590b19f1/firmware/dvb-demod-si2168-a30-01.fw?raw=true
https://github.com/OpenELEC/dvb-firmware/raw/dc7cf270e328de144e75a30d970b6e147e8bcb6e/firmware/dvb-demod-si2168-a30-01.fw

I think the second one is newer, but don't have the means to verify right now...

Cheers,
-olli

On 4 March 2016 at 10:15, Jurgen Kramer <gtmkramer@xxxxxxxxx> wrote:
> Hi Olli,
>
> On Thu, 2016-03-03 at 13:02 +0200, Olli Salonen wrote:
>> Hi Jurgen, Torbjörn,
>>
>> I've noticed that there is currently a small confusion about the
>> firmware versions for the Si2168-A20 demodulator. This is used in the
>> older versions of DVBSky T680C (TechnoTrend CT2-4650 CI) and DVBSky
>> T980C (TechnoTrend CT2-4500 CI).
>>
>> The version 2.0.5 does not support PLP handling and seems to work
>> very
>> badly with the Linux driver - at least for me. Version 2.0.35 on the
>> other hand seems to find all DVB-T/T2 channels for me just fine with
>> both dvbv5-scan and w_scan (devices used for this test: TechnoTrend
>> CT2-4650 CI and TechnoTrend CT2-4500 CI new version).
>>
>> Versions used:
>> dvbv5-scan version 1.7.0
>> w_scan version 20150111 (compiled for DVB API 5.10)
>>
>> So if you are running these Si2168-A20 based devices, make sure
>> you've
>> got the firmware 2.0.35 that can be downloaded for example here:
>> http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-A20/32e06713
>> b33915f674bfb2c209beaea5/
>
> It seems my TC980Cs have Si2168-A30's on board
>
> [  118.526665] si2168 8-0064: found a 'Silicon Labs Si2168-A30'
> [  118.640642] si2168 8-0064: downloading firmware from file 'dvb-
> demod-si2168-a30-01.fw'
> [  121.762983] si2168 8-0064: firmware version: 3.0.16
>
> dvbv5_scan does not work me.
> sha1sum for this firmware is:
> 59a0b90703d65229fb2589b52834ca68d1e96ad9  dvb-demod-si2168-a30-01.fw
>
> Jurgen
>
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