Re: TT-budget S2-3200 cannot tune on HB13E DVBS2 transponder

[Lutz Sammer <johns98@gmx.net>]

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On 05/04/11 01:16, Mauro Carvalho Chehab wrote:
> Em 13-04-2011 21:05, Lutz Sammer escreveu:
>>> On 05/04/11 21:07, Steffen Barszus wrote:
>>>> On Tue, 05 Apr 2011 13:00:14 +0200
>>>> "Issa Gorissen" <flop.m@xxxxxxx> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Eutelsat made a recent migration from DVB-S to DVB-S2 (since
>>>>> 31/3/2011) on two transponders on HB13E
>>>>>
>>>>> - HOT BIRD 6 13° Est TP 159 Freq 11,681 Ghz DVB-S2 FEC 3/4 27500
>>>>> Msymb/s 0.2 Pilot off Polar H
>>>>>
>>>>> - HOT BIRD 9 13° Est TP 99 Freq 12,692 Ghz DVB-S2 FEC 3/4 27500
>>>>> Msymb/s 0.2 Pilot off Polar H
>>>>>
>>>>>
>>>>> Before those changes, with my TT S2 3200, I was able to watch TV on
>>>>> those transponders. Now, I cannot even tune on those transponders. I
>>>>> have tried with scan-s2 and w_scan and the latest drivers from git.
>>>>> They both find the transponders but cannot tune onto it.
>>>>>
>>>>> Something noteworthy is that my other card, a DuoFlex S2 can tune
>>>>> fine on those transponders.
>>>>>
>>>>> My question is; can someone try this as well with a TT S2 3200 and
>>>>> post the results ?
>>>> i read something about it lately here (german!): 
>>>> http://www.vdr-portal.de/board16-video-disk-recorder/board85-hdtv-dvb-s2/p977938-stb0899-fec-3-4-tester-gesucht/#post977938
>>>>
>>>> It says in stb0899_drv.c function:
>>>> static void stb0899_set_iterations(struct stb0899_state *state) 
>>>>
>>>> This:
>>>> reg = STB0899_READ_S2REG(STB0899_S2DEMOD, MAX_ITER);
>>>> STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
>>>> stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
>>>>
>>>> should be replaced with this:
>>>>
>>>> reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER);
>>>> STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
>>>> stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
>>>>
>>>> Basically replace STB0899_S2DEMOD with STB0899_S2FEC in this 2 lines
>>>> affected.
>>>>
>>>> Kind Regards 
>>>>
>>>> Steffen
>>> Hi Steffen,
>>>
>>> Unfortunately, it does not help in my case. Thx anyway.
>>
>> Try my locking fix. With above patch I can lock the
>> channels without problem.
> 
> Can someone confirm that such patch would fix the issue? If so, please
> forward it in a way that it could be applied (patch is currently line-wrapped),
> and submit with some comments/description and your SOB.
> 
> As the patch is currently broken, I'm just marking it as rejected at patchwork.
> 
> Manu,
> 
> Please take a look on this trouble report.
> 

Sorry, the things are mixed here. My patch (resend and hopefully this
time not broken) handles only DVB-S transponders.

The FEC fix patch fixed locking on 11,681 Ghz, but not on 12,692 Ghz for
me.  But I have very weak receiption,

Johns

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diff --git a/drivers/media/dvb/frontends/stb0899_drv.c b/drivers/media/dvb/frontends/stb0899_drv.c
index 37a222d..7691282 100644
--- a/drivers/media/dvb/frontends/stb0899_drv.c
+++ b/drivers/media/dvb/frontends/stb0899_drv.c
@@ -1426,9 +1426,9 @@ static void stb0899_set_iterations(struct stb0899_state *state)
 	if (iter_scale > config->ldpc_max_iter)
 		iter_scale = config->ldpc_max_iter;
 
-	reg = STB0899_READ_S2REG(STB0899_S2DEMOD, MAX_ITER);
+	reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER);
 	STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
-	stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
+	stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
 }
 
 static enum dvbfe_search stb0899_search(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)