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[linux-dvb] Re: Tuning problems with the refactored drivers



Andrew de Quincey wrote:

On Sunday 17 Oct 2004 22:01, lamikr wrote:

Andrew de Quincey wrote:

On Friday 15 Oct 2004 03:40, Andrew de Quincey wrote:

On Thursday 14 Oct 2004 19:57, lamikr wrote:

Hi

I am using 2.6.8.1 kernel (mandrake patched).
I tested the refactored drivers with the TT DVB-C 2.1 Premium.
Drivers build ok and I was also able to load them succesfully.
(I build and loaded drivers separately from the build-2.6 directory.)

But when I started tuning channels with dvbscan (took head version of
dvb-apps from the cvs)
new drivers were pretty bad for finding channels.
I tested multible times and depending from the attempt results varied

from 0 found channel to maximum in 35 channels.
Could you try adding the line
mdelay(50);

to the end of ves1820_set_parameters() in the refactored drivers and let
me know if it helps?

Forget that - just try the latest FE_REFACTORING CVS and let me know how
it goes.

Thanks for testing + reporting the problem BTW!

No problem, I just wish I could also be able to help in coding...
Anyway, it took me a couple of days to test because I was away for the
weekend.
Tuning in FE_REFACTORING branch has now improved a little but it is
still not as good as compared to the
drivers in the HEAD. Now 44-59 channels were found. (Head founds always 77)

Is there any simple timeout parameter I could try to change from the
drivers for testing?
Log from the last attempt is below.

Yeah - set "dvb_override_tune_delay" on dvb-core - its the delay between successive tuning retries in milliseconds - ves1820 is set to 50ms right now - maybe increasing it will help.

I'll have a look through the code later. ves1820 was one of the trickier ones to refactor, so I'm not surprised its caused problems.


Yes, increase of it helped. I first increased it to 100 ms and drivers found 77 channels.
Then I increased delay even more to 200 ms and in the first run drivers were able found 92 channels!
In the second and third run with 200 ms delay, the amount of found channels dropped to 77.

Below is my log with the 92 channels found. Even then the tuning is not able to found channels
from the 162000000 hz, but anyway now it atleast seems to try... Is there any other method I could try
for getting channels from 162000000 hz to be found? Would it help to change the inversion value somehow from auto to off?
(If I remember correctly, I needed to put inversion off in the windows side in order to tune channels)

Can long cable effect more to channels available in the low frequency than for the channels available in the higher frequenzies?

>>> tune to: 162000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
WARNING: filter timeout pid 0x0011
Network Name 'Jyväsviestintä'
WARNING: filter timeout pid 0x18bf
WARNING: filter timeout pid 0x18bb
WARNING: filter timeout pid 0x18b0
WARNING: filter timeout pid 0x189f
WARNING: filter timeout pid 0x18bd
WARNING: filter timeout pid 0x18a0
WARNING: filter timeout pid 0x1af4
WARNING: filter timeout pid 0x189e

[lamikr@aragorn scan]$ ./dvbscan dvb-c/fi-jkl > channels.conf6
scanning dvb-c/fi-jkl
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 514000000 6900000 0 4
initial transponder 426000000 6900000 0 4
initial transponder 162000000 6900000 0 4
initial transponder 418000000 6900000 0 4
initial transponder 490000000 6900000 0 4
initial transponder 498000000 6900000 0 4
initial transponder 402000000 6900000 0 4
initial transponder 410000000 6900000 0 4
>>> tune to: 514000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
0x0000 0x00ca: pmt_pid 0x17d8 Telenor -- CNN (running, scrambled)
0x0000 0x0196: pmt_pid 0x17d9 Telenor -- Discovery (running, scrambled)
0x0000 0x0197: pmt_pid 0x17da Telenor -- Animal Planet (running, scrambled)
0x0000 0x0366: pmt_pid 0x17d6 SVT -- Barnkanalen (running, scrambled)
0x0000 0x044f: pmt_pid 0x17db BBC Prime -- BBC Prime (running, scrambled)
0x0000 0x03f2: pmt_pid 0x17d4 SVT -- SVT1 (running, scrambled)
0x0000 0x0410: pmt_pid 0x17d7 TV4 AB -- TV4 (running, scrambled)
0x0000 0x13a6: pmt_pid 0x17d5 SVT -- SVT2 (running, scrambled)
0x0000 0xf03c: pmt_pid 0x17dc Lighthouse Network -- TV7 (running, scrambled)
Network Name 'Jyväsviestintä'
>>> tune to: 426000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
0x0000 0x0031: pmt_pid 0x1838 MTV Oy -- MTV3 (running)
0x0000 0x0041: pmt_pid 0x1839 Ruutunelonen Oy -- Nelonen (running)
0x0000 0x0061: pmt_pid 0x183a Citytv Oy -- SubTV (running)
0x0000 0x0071: pmt_pid 0x183b Suomen urheilutelevisio -- Urheilukanava (running)0x0000 0x00d1: pmt_pid 0x183d MTV Oy -- MTV3+ (running, scrambled)
0x0000 0x00e1: pmt_pid 0x183c Ruutunelonen Oy -- Nelonen Plus (running)
0x0000 0x00f1: pmt_pid 0x183e Vizor Oy -- Viisi (running, scrambled)
0x0000 0x1161: pmt_pid 0x184c SBS Radiot -- Kiss FM (running, scrambled)
0x0000 0x1171: pmt_pid 0x184d SBS Radiot -- Iskelmä (running, scrambled)
Network Name 'Jyväsviestintä'
>>> tune to: 162000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
WARNING: filter timeout pid 0x0011
Network Name 'Jyväsviestintä'
WARNING: filter timeout pid 0x18bf
WARNING: filter timeout pid 0x18bb
WARNING: filter timeout pid 0x18b0
WARNING: filter timeout pid 0x189f
WARNING: filter timeout pid 0x18bd
WARNING: filter timeout pid 0x18a0
WARNING: filter timeout pid 0x1af4
WARNING: filter timeout pid 0x189e
>>> tune to: 418000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
0x0000 0x0474: pmt_pid 0x1900 Viasat -- TV1000 (running, scrambled)
0x0000 0x047e: pmt_pid 0x1901 Viasat -- TV1000 Action (running, scrambled)
0x0000 0x0c1c: pmt_pid 0x1902 Viasat -- TV1000 PlusOne (running, scrambled)
0x0000 0x0c26: pmt_pid 0x1903 Viasat -- TV1000 Family (running, scrambled)
0x0000 0x0c30: pmt_pid 0x1904 Viasat -- TV1000 Nordic (running, scrambled)
0x0000 0x0c3a: pmt_pid 0x1905 Viasat -- TV1000 Classic (running, scrambled)
0x0000 0x1b8a: pmt_pid 0x1906 Viasat -- Explorer (running, scrambled)
0x0000 0x00cf: pmt_pid 0x1914 Telenor -- Hit List (running, scrambled)
0x0000 0x00d0: pmt_pid 0x1915 Telenor -- Classic Rock (running, scrambled)
0x0000 0x00d1: pmt_pid 0x1916 Telenor -- Hard Rock (running, scrambled)
0x0000 0x00d2: pmt_pid 0x1917 Telenor -- Old Gold (running, scrambled)
0x0000 0x00d3: pmt_pid 0x1918 Telenor -- Dance (running, scrambled)
0x0000 0x00d4: pmt_pid 0x1919 Telenor -- Dance Underground (running, scrambled)
0x0000 0x00d5: pmt_pid 0x191a Telenor -- Soul Classics (running, scrambled)
0x0000 0x00d6: pmt_pid 0x191b Telenor -- Reggae (running, scrambled)
0x0000 0x00d7: pmt_pid 0x191c Telenor -- Jazz (running, scrambled)
0x0000 0x00d8: pmt_pid 0x191d Telenor -- Country (running, scrambled)
0x0000 0x00d9: pmt_pid 0x191e Telenor -- Blues (running, scrambled)
0x0000 0x00da: pmt_pid 0x191f Telenor -- Classic Favourites (running, scrambled)0x0000 0x00db: pmt_pid 0x1920 Telenor -- Orchestral Works (running, scrambled)
0x0000 0x00dc: pmt_pid 0x1921 Telenor -- Classic Baroque (running, scrambled)
0x0000 0x00dd: pmt_pid 0x1922 Telenor -- Opera (running, scrambled)
0x0000 0x00de: pmt_pid 0x1923 Telenor -- Easy Listening (running, scrambled)
0x0000 0x00df: pmt_pid 0x1924 Telenor -- New Age/Moods (running, scrambled)
0x0000 0x00e0: pmt_pid 0x1925 Telenor -- Bella Italia (running, scrambled)
0x0000 0x00e1: pmt_pid 0x1926 Telenor -- Special Events (running, scrambled)
0x0000 0x00e2: pmt_pid 0x1927 Telenor -- HitKanal Norden (running, scrambled)
Network Name 'Jyväsviestintä'
WARNING: filter timeout pid 0x1927
WARNING: filter timeout pid 0x1926
>>> tune to: 490000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
Network Name 'Jyväsviestintä'
0x0000 0x012f: pmt_pid 0x1964 Telenor -- Hallmark (running, scrambled)
0x0000 0x0191: pmt_pid 0x1965 Telenor -- Nordic TCM (running, scrambled)
0x0000 0x0192: pmt_pid 0x1966 Telenor -- Cartoon Networks (running, scrambled)
0x0000 0x0198: pmt_pid 0x1967 Telenor -- Jetix - Fox Kids (running, scrambled)
0x0000 0x0649: pmt_pid 0x1969 Telenor -- Star! (running, scrambled)
0x0000 0x0d49: pmt_pid 0x196a RAI -- RAI1 (running, scrambled)
0x0000 0x1f41: pmt_pid 0x196b RTL -- RTL Television (running, scrambled)
0x0000 0x6d67: pmt_pid 0x196c ZDFvision -- 3sat (running, scrambled)
0x0000 0x6fef: pmt_pid 0x196d MTV Networks -- MTV Base (running, scrambled)
>>> tune to: 498000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
0x0000 0x000a: pmt_pid 0x19c8 NSAB -- NTV Mir (running, scrambled)
0x0000 0x00e1: pmt_pid 0x19c9 NSAB -- ORT International (running, scrambled)
0x0000 0x012d: pmt_pid 0x19ca Telenor -- CANAL+ FILM1 (running, scrambled)
0x0000 0x0131: pmt_pid 0x19cb Telenor -- CANAL+ Finland (running, scrambled)
0x0000 0x0134: pmt_pid 0x19cc Telenor -- CANAL+ FILM2 (running, scrambled)
0x0000 0x0135: pmt_pid 0x19cd Telenor -- CANAL+ SPORT (running, scrambled)
0x0000 0x0139: pmt_pid 0x19cf Telenor -- C MORE FILM (running, scrambled)
0x0000 0x2013: pmt_pid 0x19ce GlobeCast -- EuroNews (running, scrambled)
Network Name 'Jyväsviestintä'
>>> tune to: 402000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
0x0000 0x0002: pmt_pid 0x1a2c UPCtv/EuroHITS -- UPCtv Reality (running, scrambled)
0x0000 0x0003: pmt_pid 0x1a2d UPCtv/EuroHITS -- UPCtv Extreme Sports (running, scrambled)
0x0000 0x00c9: pmt_pid 0x1a2e Telenor -- National Geographic (running, scrambled)
0x0000 0x00cc: pmt_pid 0x1a2f Telenor -- VH 1 (running, scrambled)
0x0000 0x038a: pmt_pid 0x1a30 Telenor -- CNBC Nordic (running, scrambled)
0x0000 0x03f5: pmt_pid 0x1a31 Telenor -- Sky News (running, scrambled)
0x0000 0x03f6: pmt_pid 0x1a32 Telenor -- DSC CIVILIS'N (running, scrambled)
0x0000 0x070a: pmt_pid 0x1a33 Telenor -- Adventure 1 (running, scrambled)
Network Name 'Jyväsviestintä'
>>> tune to: 410000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
0x0000 0x0001: pmt_pid 0x1a90 (null) -- Toto-TV (running, scrambled)
0x0000 0x00cb: pmt_pid 0x1a91 Telenor -- Travel (running, scrambled)
0x0000 0x00e3: pmt_pid 0x1a92 Telenor -- Adult (running, scrambled)
0x0000 0x025d: pmt_pid 0x1a93 Telenor -- Private Gold (running, scrambled)
0x0000 0x0dad: pmt_pid 0x1a94 TVE -- TVE INTERNACIONAL (running, scrambled)
0x0000 0x6dcd: pmt_pid 0x1a95 ARD -- arte (running, scrambled)
0x0000 0x6ff3: pmt_pid 0x1a96 (null) -- MTV 2 (running, scrambled)
Network Name 'Jyväsviestintä'
>>> tune to: 394000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128
Network Name 'Jyväsviestintä'
dumping lists (92 services)
Done.








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