On 3/18/07, Darron Broad <darron@xxxxxxxx> wrote:
In message <1a297b360703171245g2ffb04dfh6872a855cfc1a578@xxxxxxxxxxxxxx>, "Manu Abraham" wrote:
lo
>On 3/17/07, Darron Broad <darron@xxxxxxxx> wrote:
>> In message <45FAB175.6090803@xxxxxxxxxxxxx>, Steven Toth wrote:
>> >Darron Broad wrote:
>> >
>> >Has anyone had a chance to try the stoth/hvr4000 tree after the recent
>> >fixes? It's certainly going through the correct motioned for tuning now.
>> >(I don't have a feed available for testing right now).
>> >
>> >Remember, DiSEqC is not implemented.
>>
>> Hi Steve.
>>
>> I have more news to report.
>>
>> I have hacked some extra args to the kromtek multiproto szap and am able
>> to tune to a DVB-S2 channel.
>>
>
>szap (http://kromtek.com/dvb/szap.c) should work as it is with multiproto
this is the base of the hack. there are three reasons it doesn't work
with the hvr4000 demod driver.
Hmm.. I was able to test it only with the STB0899 - STB6100/TDA8261
(KNC1, Satelco, Azurewave cards)
1. the modulation type needs to be explicit
The STB0899 can do modulation type detection from the physical layer.
I thought that other demods also could do the same.
2. fec_auto isn't available as stated in driver:
the same as above, but the MODCOD is extracted from the Pilot tones.
So it is just default AUTO like the current "existing drivers". though
there could be a bug, probably.
switch (delsys) {
case DVBS:
fe_params.delsys.dvbs.symbol_rate = sr;
fe_params.delsys.dvbs.fec = FEC_AUTO;
printf("%s: Frequency = %d, Srate = %d\n",
__func__, fe_params.frequency, fe_params.delsys.dvbs.symbol_rate);
break;
case DSS:
fe_params.delsys.dss.symbol_rate = sr;
fe_params.delsys.dss.fec = FEC_AUTO;
printf("%s: Frequency = %d, Srate = %d\n",
__func__, fe_params.frequency, fe_params.delsys.dss.symbol_rate);
break;
case DVBS2:
fe_params.delsys.dvbs2.symbol_rate = sr;
fe_params.delsys.dvbs2.fec = FEC_AUTO;
printf("%s: Frequency = %d, Srate = %d\n",
__func__, fe_params.frequency, fe_params.delsys.dvbs2.symbol_rate);
break;
"Not all S2 mmodulation schemes are support and not all rates with
a scheme are support. Especially, no auto detect when in S2 mode"
The CX24116 doesn't support identifying the modulation from the
Physical layer ? Sounds a bit strange.
3. the delivery field has to be set
delivery system is set using DVBFE_SET_PARAMS, without which you
wouldn't be able to tune to anything, because of the switch statement.
Manu
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