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

[Lutz Sammer <johns98@gmx.net>]

> 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.

Johns

diff --git a/drivers/media/dvb/frontends/stb0899_algo.c
b/drivers/media/dvb/frontends/stb0899_algo.c
index 2da55ec..55f0c4e 100644
--- a/drivers/media/dvb/frontends/stb0899_algo.c
+++ b/drivers/media/dvb/frontends/stb0899_algo.c
@@ -338,36 +338,42 @@ static enum stb0899_status
stb0899_check_data(struct stb0899_state *state)
        int lock = 0, index = 0, dataTime = 500, loop;
        u8 reg;

-       internal->status = NODATA;
+       reg = stb0899_read_reg(state, STB0899_VSTATUS);
+       lock = STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg);
+       if ( !lock ) {

-       /* RESET FEC    */
-       reg = stb0899_read_reg(state, STB0899_TSTRES);
-       STB0899_SETFIELD_VAL(FRESACS, reg, 1);
-       stb0899_write_reg(state, STB0899_TSTRES, reg);
-       msleep(1);
-       reg = stb0899_read_reg(state, STB0899_TSTRES);
-       STB0899_SETFIELD_VAL(FRESACS, reg, 0);
-       stb0899_write_reg(state, STB0899_TSTRES, reg);
+               internal->status = NODATA;

-       if (params->srate <= 2000000)
-               dataTime = 2000;
-       else if (params->srate <= 5000000)
-               dataTime = 1500;
-       else if (params->srate <= 15000000)
-               dataTime = 1000;
-       else
-               dataTime = 500;
-
-       stb0899_write_reg(state, STB0899_DSTATUS2, 0x00); /* force
search loop  */
-       while (1) {
-               /* WARNING! VIT LOCKED has to be tested before
VIT_END_LOOOP    */
-               reg = stb0899_read_reg(state, STB0899_VSTATUS);
-               lock = STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg);
-               loop = STB0899_GETFIELD(VSTATUS_END_LOOPVIT, reg);
+               /* RESET FEC    */
+               reg = stb0899_read_reg(state, STB0899_TSTRES);
+               STB0899_SETFIELD_VAL(FRESACS, reg, 1);
+               stb0899_write_reg(state, STB0899_TSTRES, reg);
+               msleep(1);
+               reg = stb0899_read_reg(state, STB0899_TSTRES);
+               STB0899_SETFIELD_VAL(FRESACS, reg, 0);
+               stb0899_write_reg(state, STB0899_TSTRES, reg);

-               if (lock || loop || (index > dataTime))
-                       break;
-               index++;
+                       msleep(1);
+               }
        }

        if (lock) {     /* DATA LOCK indicator  */