[linux-dvb] Some tests on Avermedia A700

[linux-dvb] Some tests on Avermedia A700

[Eduard Huguet]

Hi, Matthias
    I've been performing some tests using your patch for this card. 
Right now neither dvbscan nor kaffeine are able to find any channel on 
Astra (the sat. my dish points to).

However, Kaffeine has been giving me some interesting results: with your 
driver "as is" it's getting me a 13-14% signal level and ~52% SNR when 
scanning. Then, thinking that the problem is related to the low signal I 
have I've changed the gain levels used to program the tuner: you were 
using default values of 0 for all (in zl1003x_set_gain_params() 
function, variables "rfg", "ba" and "bg"), and I've changed them top the 
maximum (according to the documentation: rfg=1, ba=bg=3). With that, I'm 
getting a 18% signal level, which is higher but still too low apparently 
to get a lock.

I've stopped here, because I really don't have the necessary background 
to keep tweaking the driver. I just wanted to share it with you, as 
maybe you have some idea on how to continue or what else could be done.

Best regards,
  Eduard

PD: the satelite dish is on the top of the building and it's shared 
(this is a 15-floor building). This is probably the reason I get a 
signal that low. Anyway, I think I still should be able to use the card, 
but maybe I'm wrong and I need to pre-amplify the signal.


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Re: [linux-dvb] Some tests on Avermedia A700

[Matthias Schwarzott]

On Samstag, 9. Februar 2008, Eduard Huguet wrote:
> Hi, Matthias
Hi Eduard!

>     I've been performing some tests using your patch for this card.
> Right now neither dvbscan nor kaffeine are able to find any channel on
> Astra (the sat. my dish points to).
>
> However, Kaffeine has been giving me some interesting results: with your
> driver "as is" it's getting me a 13-14% signal level and ~52% SNR when
> scanning. Then, thinking that the problem is related to the low signal I
> have I've changed the gain levels used to program the tuner: you were
> using default values of 0 for all (in zl1003x_set_gain_params()
> function, variables "rfg", "ba" and "bg"), and I've changed them top the
> maximum (according to the documentation: rfg=1, ba=bg=3). With that, I'm
> getting a 18% signal level, which is higher but still too low apparently
> to get a lock.
>
> I've stopped here, because I really don't have the necessary background
> to keep tweaking the driver. I just wanted to share it with you, as
> maybe you have some idea on how to continue or what else could be done.
>

So I can do only this guess:
I changed demod driver to invert the Polarization voltage for a700 card.
This is controlled by member-variable voltage_inverted.

static struct mt312_config avertv_a700_mt312 = {
        .demod_address = 0x0e,
        .voltage_inverted = 1,
};

Can you try to comment the voltage_inverted line here (saa7134-dvb.c: line 
865).

BUT: If this helps we need to find out how to detect which card needs this 
enabled/disabled.

Regards
Matthias

-- 
Matthias Schwarzott (zzam)

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Re: [linux-dvb] Some tests on Avermedia A700

[Eduard Huguet]

[-- Attachment #1.1: Type: text/plain, Size: 2022 bytes --]

En/na Matthias Schwarzott ha escrit:
> On Samstag, 9. Februar 2008, Eduard Huguet wrote:
>   
>> Hi, Matthias
>>     
> Hi Eduard!
>
>   
>>     I've been performing some tests using your patch for this card.
>> Right now neither dvbscan nor kaffeine are able to find any channel on
>> Astra (the sat. my dish points to).
>>
>> However, Kaffeine has been giving me some interesting results: with your
>> driver "as is" it's getting me a 13-14% signal level and ~52% SNR when
>> scanning. Then, thinking that the problem is related to the low signal I
>> have I've changed the gain levels used to program the tuner: you were
>> using default values of 0 for all (in zl1003x_set_gain_params()
>> function, variables "rfg", "ba" and "bg"), and I've changed them top the
>> maximum (according to the documentation: rfg=1, ba=bg=3). With that, I'm
>> getting a 18% signal level, which is higher but still too low apparently
>> to get a lock.
>>
>> I've stopped here, because I really don't have the necessary background
>> to keep tweaking the driver. I just wanted to share it with you, as
>> maybe you have some idea on how to continue or what else could be done.
>>
>>     
>
> So I can do only this guess:
> I changed demod driver to invert the Polarization voltage for a700 card.
> This is controlled by member-variable voltage_inverted.
>
> static struct mt312_config avertv_a700_mt312 = {
>         .demod_address = 0x0e,
>         .voltage_inverted = 1,
> };
>
> Can you try to comment the voltage_inverted line here (saa7134-dvb.c: line 
> 865).
>
> BUT: If this helps we need to find out how to detect which card needs this 
> enabled/disabled.
>
> Regards
> Matthias
>
>   
Hi,
  Nothing :(. Removing (or setting it to 0) the voltage_inverted member 
doesn't seem to make any difference. I'm starting to suspect that there 
is something wrong with my antennae setup, so I'll test it later using 
an standalone STB or by plugging the card into a Windows computer and 
using the supplied drivers.

Regards,
  Eduard



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Re: [linux-dvb] Some tests on Avermedia A700

[Eduard Huguet]

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En/na Eduard Huguet ha escrit:
> En/na Matthias Schwarzott ha escrit:
>> On Samstag, 9. Februar 2008, Eduard Huguet wrote:
>>   
>>> Hi, Matthias
>>>     
>> Hi Eduard!
>>
>>   
>>>     I've been performing some tests using your patch for this card.
>>> Right now neither dvbscan nor kaffeine are able to find any channel on
>>> Astra (the sat. my dish points to).
>>>
>>> However, Kaffeine has been giving me some interesting results: with your
>>> driver "as is" it's getting me a 13-14% signal level and ~52% SNR when
>>> scanning. Then, thinking that the problem is related to the low signal I
>>> have I've changed the gain levels used to program the tuner: you were
>>> using default values of 0 for all (in zl1003x_set_gain_params()
>>> function, variables "rfg", "ba" and "bg"), and I've changed them top the
>>> maximum (according to the documentation: rfg=1, ba=bg=3). With that, I'm
>>> getting a 18% signal level, which is higher but still too low apparently
>>> to get a lock.
>>>
>>> I've stopped here, because I really don't have the necessary background
>>> to keep tweaking the driver. I just wanted to share it with you, as
>>> maybe you have some idea on how to continue or what else could be done.
>>>
>>>     
>>
>> So I can do only this guess:
>> I changed demod driver to invert the Polarization voltage for a700 card.
>> This is controlled by member-variable voltage_inverted.
>>
>> static struct mt312_config avertv_a700_mt312 = {
>>         .demod_address = 0x0e,
>>         .voltage_inverted = 1,
>> };
>>
>> Can you try to comment the voltage_inverted line here (saa7134-dvb.c: line 
>> 865).
>>
>> BUT: If this helps we need to find out how to detect which card needs this 
>> enabled/disabled.
>>
>> Regards
>> Matthias
>>
>>   
> Hi,
>   Nothing :(. Removing (or setting it to 0) the voltage_inverted 
> member doesn't seem to make any difference. I'm starting to suspect 
> that there is something wrong with my antennae setup, so I'll test it 
> later using an standalone STB or by plugging the card into a Windows 
> computer and using the supplied drivers.
>
> Regards,
>   Eduard
>
>

Hi again...
    Just some more feedback: I've unplugged the card and put it onto a 
different PC running both Windows and Gentoo. In Windows the card runs 
perfectly, I can see all the (free) channels, so I can be sure there's 
no problem with my antennae setup.

In Linux it doesn't work, neither in this PC (P4 running Gentoo 32) nor 
in the mediacenter PC (AMD AthlonXP running Gentoo 64). It seems we are 
missing something fundamental here... :(

Best regards,
  Eduard





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Re: [linux-dvb] Some tests on Avermedia A700

[Eduard Huguet]

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En/na Eduard Huguet ha escrit:
> En/na Matthias Schwarzott ha escrit:
>> On Samstag, 9. Februar 2008, Eduard Huguet wrote:
>>   
>>> Hi, Matthias
>>>     
>> Hi Eduard!
>>
>>   
>>>     I've been performing some tests using your patch for this card.
>>> Right now neither dvbscan nor kaffeine are able to find any channel on
>>> Astra (the sat. my dish points to).
>>>
>>> However, Kaffeine has been giving me some interesting results: with your
>>> driver "as is" it's getting me a 13-14% signal level and ~52% SNR when
>>> scanning. Then, thinking that the problem is related to the low signal I
>>> have I've changed the gain levels used to program the tuner: you were
>>> using default values of 0 for all (in zl1003x_set_gain_params()
>>> function, variables "rfg", "ba" and "bg"), and I've changed them top the
>>> maximum (according to the documentation: rfg=1, ba=bg=3). With that, I'm
>>> getting a 18% signal level, which is higher but still too low apparently
>>> to get a lock.
>>>
>>> I've stopped here, because I really don't have the necessary background
>>> to keep tweaking the driver. I just wanted to share it with you, as
>>> maybe you have some idea on how to continue or what else could be done.
>>>
>>>     
>>
>> So I can do only this guess:
>> I changed demod driver to invert the Polarization voltage for a700 card.
>> This is controlled by member-variable voltage_inverted.
>>
>> static struct mt312_config avertv_a700_mt312 = {
>>         .demod_address = 0x0e,
>>         .voltage_inverted = 1,
>> };
>>
>> Can you try to comment the voltage_inverted line here (saa7134-dvb.c: line 
>> 865).
>>
>> BUT: If this helps we need to find out how to detect which card needs this 
>> enabled/disabled.
>>
>> Regards
>> Matthias
>>
>>   
> Hi,
>   Nothing :(. Removing (or setting it to 0) the voltage_inverted 
> member doesn't seem to make any difference. I'm starting to suspect 
> that there is something wrong with my antennae setup, so I'll test it 
> later using an standalone STB or by plugging the card into a Windows 
> computer and using the supplied drivers.
>
> Regards,
>   Eduard
>
>

By the way (sorry if I'm being molest...): I will leave the card in this 
PC for now, as it's easier fo me to test and develop. As I have also 
Windows here ¿is there any way we could do any reverse enginnering from 
Windows driver, etc...?

Regards,
  Eduard


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Re: [linux-dvb] Some tests on Avermedia A700

[Matthias Schwarzott]

On Monday 11 February 2008, you wrote:
> En/na Eduard Huguet ha escrit:
> > En/na Matthias Schwarzott ha escrit:
> >> On Samstag, 9. Februar 2008, Eduard Huguet wrote:
> >>> Hi, Matthias
> >>
> >> Hi Eduard!
> >>
> >>>     I've been performing some tests using your patch for this card.
> >>> Right now neither dvbscan nor kaffeine are able to find any channel on
> >>> Astra (the sat. my dish points to).
> >>>
> >>> However, Kaffeine has been giving me some interesting results: with
> >>> your driver "as is" it's getting me a 13-14% signal level and ~52% SNR
> >>> when scanning. Then, thinking that the problem is related to the low
> >>> signal I have I've changed the gain levels used to program the tuner:
> >>> you were using default values of 0 for all (in
> >>> zl1003x_set_gain_params() function, variables "rfg", "ba" and "bg"),
> >>> and I've changed them top the maximum (according to the documentation:
> >>> rfg=1, ba=bg=3). With that, I'm getting a 18% signal level, which is
> >>> higher but still too low apparently to get a lock.
> >>>
> >>> I've stopped here, because I really don't have the necessary background
> >>> to keep tweaking the driver. I just wanted to share it with you, as
> >>> maybe you have some idea on how to continue or what else could be done.
> >>
> >> So I can do only this guess:
> >> I changed demod driver to invert the Polarization voltage for a700 card.
> >> This is controlled by member-variable voltage_inverted.
> >>
> >> static struct mt312_config avertv_a700_mt312 = {
> >>         .demod_address = 0x0e,
> >>         .voltage_inverted = 1,
> >> };
> >>
> >> Can you try to comment the voltage_inverted line here (saa7134-dvb.c:
> >> line 865).
> >>
> >> BUT: If this helps we need to find out how to detect which card needs
> >> this enabled/disabled.
> >>
> >> Regards
> >> Matthias
> >
> > Hi,
> >   Nothing :(. Removing (or setting it to 0) the voltage_inverted
> > member doesn't seem to make any difference. I'm starting to suspect
> > that there is something wrong with my antennae setup, so I'll test it
> > later using an standalone STB or by plugging the card into a Windows
> > computer and using the supplied drivers.
> >
> > Regards,
> >   Eduard
>
> By the way (sorry if I'm being molest...): I will leave the card in this
> PC for now, as it's easier fo me to test and develop. As I have also
> Windows here ¿is there any way we could do any reverse enginnering from
> Windows driver, etc...?
>

I already asked you to compare eeprom output in dmesg. But did you also 
compare GPIO messages - like init-values read after startup (to detect 
different wiring)?
This is from my dmesg output: "saa7133[0]: board init: gpio is a600"

Or just attach dmesg output after a cold boot and loading saa7134 driver (with 
i2c_scan=1).

Maybe I create a patch where you can select the other existing zl10313 driver.
So we can compare the logs / functionality.

Matthias

-- 
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Re: [linux-dvb] Some tests on Avermedia A700

[Eduard Huguet]

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En/na Matthias Schwarzott ha escrit:
> On Monday 11 February 2008, you wrote:
>   
>> En/na Eduard Huguet ha escrit:
>>     
>>> En/na Matthias Schwarzott ha escrit:
>>>       
>>>> On Samstag, 9. Februar 2008, Eduard Huguet wrote:
>>>>         
>>>>> Hi, Matthias
>>>>>           
>>>> Hi Eduard!
>>>>
>>>>         
>>>>>     I've been performing some tests using your patch for this card.
>>>>> Right now neither dvbscan nor kaffeine are able to find any channel on
>>>>> Astra (the sat. my dish points to).
>>>>>
>>>>> However, Kaffeine has been giving me some interesting results: with
>>>>> your driver "as is" it's getting me a 13-14% signal level and ~52% SNR
>>>>> when scanning. Then, thinking that the problem is related to the low
>>>>> signal I have I've changed the gain levels used to program the tuner:
>>>>> you were using default values of 0 for all (in
>>>>> zl1003x_set_gain_params() function, variables "rfg", "ba" and "bg"),
>>>>> and I've changed them top the maximum (according to the documentation:
>>>>> rfg=1, ba=bg=3). With that, I'm getting a 18% signal level, which is
>>>>> higher but still too low apparently to get a lock.
>>>>>
>>>>> I've stopped here, because I really don't have the necessary background
>>>>> to keep tweaking the driver. I just wanted to share it with you, as
>>>>> maybe you have some idea on how to continue or what else could be done.
>>>>>           
>>>> So I can do only this guess:
>>>> I changed demod driver to invert the Polarization voltage for a700 card.
>>>> This is controlled by member-variable voltage_inverted.
>>>>
>>>> static struct mt312_config avertv_a700_mt312 = {
>>>>         .demod_address = 0x0e,
>>>>         .voltage_inverted = 1,
>>>> };
>>>>
>>>> Can you try to comment the voltage_inverted line here (saa7134-dvb.c:
>>>> line 865).
>>>>
>>>> BUT: If this helps we need to find out how to detect which card needs
>>>> this enabled/disabled.
>>>>
>>>> Regards
>>>> Matthias
>>>>         
>>> Hi,
>>>   Nothing :(. Removing (or setting it to 0) the voltage_inverted
>>> member doesn't seem to make any difference. I'm starting to suspect
>>> that there is something wrong with my antennae setup, so I'll test it
>>> later using an standalone STB or by plugging the card into a Windows
>>> computer and using the supplied drivers.
>>>
>>> Regards,
>>>   Eduard
>>>       
>> By the way (sorry if I'm being molest...): I will leave the card in this
>> PC for now, as it's easier fo me to test and develop. As I have also
>> Windows here ¿is there any way we could do any reverse enginnering from
>> Windows driver, etc...?
>>
>>     
>
> I already asked you to compare eeprom output in dmesg. But did you also 
> compare GPIO messages - like init-values read after startup (to detect 
> different wiring)?
> This is from my dmesg output: "saa7133[0]: board init: gpio is a600"
>
> Or just attach dmesg output after a cold boot and loading saa7134 driver (with 
> i2c_scan=1).
>
> Maybe I create a patch where you can select the other existing zl10313 driver.
> So we can compare the logs / functionality.
>
> Matthias
>
>   
Hi,
    Here you have the dmesg output of "modprobe saa7134 i2c_scan=1":

[  773.619247] saa7133[0]: found at 0000:00:09.0, rev: 209, irq: 23, 
latency: 64, mmio: 0xf7ffa800
[  773.619258] saa7133[0]: subsystem: 1461:a7a1, board: Avermedia A700 
[card=132,autodetected]
[  773.619273] saa7133[0]: board init: gpio is 2f200
[  773.865218] saa7133[0]: i2c eeprom 00: 61 14 a1 a7 ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865270] saa7133[0]: i2c eeprom 10: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865312] saa7133[0]: i2c eeprom 20: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865351] saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865393] saa7133[0]: i2c eeprom 40: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865433] saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865459] saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865702] saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865727] saa7133[0]: i2c eeprom 80: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865753] saa7133[0]: i2c eeprom 90: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865780] saa7133[0]: i2c eeprom a0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865810] saa7133[0]: i2c eeprom b0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865840] saa7133[0]: i2c eeprom c0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865868] saa7133[0]: i2c eeprom d0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.865897] saa7133[0]: i2c eeprom e0: 00 01 81 af ea b5 ff ff ff ff 
ff ff ff ff ff ff
[  773.865923] saa7133[0]: i2c eeprom f0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  773.870157] saa7133[0]: i2c scan: found device @ 0x1c  [???]
[  773.883118] saa7133[0]: i2c scan: found device @ 0xa0  [eeprom]
[  773.891907] saa7133[0]: registered device video0 [v4l2]
[  773.892250] saa7133[0]: registered device vbi0
[  774.011780] zl1003x_attach: tuner initialization (Zarlink ZL10036 
addr=0x60) ok
[  774.011805] DVB: registering new adapter (saa7133[0])
[  774.011819] DVB: registering frontend 0 (Zarlink ZL10313 DVB-S)...


These are the results of "lspci -vvnn" (after loading the driver):

00:09.0 Multimedia controller [0480]: Philips Semiconductors 
SAA7133/SAA7135 Video Broadcast Decoder [1131:7133] (rev d1)
        Subsystem: Avermedia Technologies Inc Unknown device [1461:a7a1]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
ParErr- Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64 (63750ns min, 63750ns max)
        Interrupt: pin A routed to IRQ 23
        Region 0: Memory at f7ffa800 (32-bit, non-prefetchable) [size=2K]
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=3 PME-
        Kernel driver in use: saa7134
        Kernel modules: saa7134

If you need anything else just let me know.
Regards,
  Eduard


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Re: [linux-dvb] Some tests on Avermedia A700

[Matthias Schwarzott]

On Mittwoch, 13. Februar 2008, Eduard Huguet wrote:
> Hi,
>     Here you have the dmesg output of "modprobe saa7134 i2c_scan=1":
>
> [  773.619247] saa7133[0]: found at 0000:00:09.0, rev: 209, irq: 23,
> latency: 64, mmio: 0xf7ffa800
> [  773.619258] saa7133[0]: subsystem: 1461:a7a1, board: Avermedia A700
> [card=132,autodetected]
> [  773.619273] saa7133[0]: board init: gpio is 2f200
> [  773.865218] saa7133[0]: i2c eeprom 00: 61 14 a1 a7 ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865270] saa7133[0]: i2c eeprom 10: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865312] saa7133[0]: i2c eeprom 20: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865351] saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865393] saa7133[0]: i2c eeprom 40: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865433] saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865459] saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865702] saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865727] saa7133[0]: i2c eeprom 80: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865753] saa7133[0]: i2c eeprom 90: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865780] saa7133[0]: i2c eeprom a0: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865810] saa7133[0]: i2c eeprom b0: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865840] saa7133[0]: i2c eeprom c0: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865868] saa7133[0]: i2c eeprom d0: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.865897] saa7133[0]: i2c eeprom e0: 00 01 81 af ea b5 ff ff ff ff
> ff ff ff ff ff ff
> [  773.865923] saa7133[0]: i2c eeprom f0: ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff
> [  773.870157] saa7133[0]: i2c scan: found device @ 0x1c  [???]
> [  773.883118] saa7133[0]: i2c scan: found device @ 0xa0  [eeprom]
> [  773.891907] saa7133[0]: registered device video0 [v4l2]
> [  773.892250] saa7133[0]: registered device vbi0
> [  774.011780] zl1003x_attach: tuner initialization (Zarlink ZL10036
> addr=0x60) ok
> [  774.011805] DVB: registering new adapter (saa7133[0])
> [  774.011819] DVB: registering frontend 0 (Zarlink ZL10313 DVB-S)...
>
>
> These are the results of "lspci -vvnn" (after loading the driver):
>
> 00:09.0 Multimedia controller [0480]: Philips Semiconductors
> SAA7133/SAA7135 Video Broadcast Decoder [1131:7133] (rev d1)
>         Subsystem: Avermedia Technologies Inc Unknown device [1461:a7a1]
>         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR+ FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Latency: 64 (63750ns min, 63750ns max)
>         Interrupt: pin A routed to IRQ 23
>         Region 0: Memory at f7ffa800 (32-bit, non-prefetchable) [size=2K]
>         Capabilities: [40] Power Management version 2
>                 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=3 PME-
>         Kernel driver in use: saa7134
>         Kernel modules: saa7134
>
added note about different gpio values and eeprom content to wiki.

Regards
Matthias
-- 
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Re: [linux-dvb] Some tests on Avermedia A700

[Matthias Schwarzott]

On Sonntag, 10. Februar 2008, Eduard Huguet wrote:
> En/na Matthias Schwarzott ha escrit:
> > On Samstag, 9. Februar 2008, Eduard Huguet wrote:
> >> Hi, Matthias
> >
> > Hi Eduard!
> >
> >>     I've been performing some tests using your patch for this card.
> >> Right now neither dvbscan nor kaffeine are able to find any channel on
> >> Astra (the sat. my dish points to).
> >>
> >> However, Kaffeine has been giving me some interesting results: with your
> >> driver "as is" it's getting me a 13-14% signal level and ~52% SNR when
> >> scanning. Then, thinking that the problem is related to the low signal I
> >> have I've changed the gain levels used to program the tuner: you were
> >> using default values of 0 for all (in zl1003x_set_gain_params()
> >> function, variables "rfg", "ba" and "bg"), and I've changed them top the
> >> maximum (according to the documentation: rfg=1, ba=bg=3). With that, I'm
> >> getting a 18% signal level, which is higher but still too low apparently
> >> to get a lock.
> >>
> >> I've stopped here, because I really don't have the necessary background
> >> to keep tweaking the driver. I just wanted to share it with you, as
> >> maybe you have some idea on how to continue or what else could be done.
> >
> > So I can do only this guess:
> > I changed demod driver to invert the Polarization voltage for a700 card.
> > This is controlled by member-variable voltage_inverted.
> >
> > static struct mt312_config avertv_a700_mt312 = {
> >         .demod_address = 0x0e,
> >         .voltage_inverted = 1,
> > };
> >
> > Can you try to comment the voltage_inverted line here (saa7134-dvb.c:
> > line 865).
> >
> > BUT: If this helps we need to find out how to detect which card needs
> > this enabled/disabled.
> >
> > Regards
> > Matthias
>
> Hi,
>   Nothing :(. Removing (or setting it to 0) the voltage_inverted member
> doesn't seem to make any difference. I'm starting to suspect that there
> is something wrong with my antennae setup, so I'll test it later using
> an standalone STB or by plugging the card into a Windows computer and
> using the supplied drivers.
>
Even better: Tune to a channel and measure the voltage the card outputs on LNB 
connector.

Regards
Matthias

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Re: [linux-dvb] Some tests on Avermedia A700

[Eduard Huguet]

[-- Attachment #1.1: Type: text/plain, Size: 2582 bytes --]

En/na Matthias Schwarzott ha escrit:
> On Sonntag, 10. Februar 2008, Eduard Huguet wrote:
>   
>> En/na Matthias Schwarzott ha escrit:
>>     
>>> On Samstag, 9. Februar 2008, Eduard Huguet wrote:
>>>       
>>>> Hi, Matthias
>>>>         
>>> Hi Eduard!
>>>
>>>       
>>>>     I've been performing some tests using your patch for this card.
>>>> Right now neither dvbscan nor kaffeine are able to find any channel on
>>>> Astra (the sat. my dish points to).
>>>>
>>>> However, Kaffeine has been giving me some interesting results: with your
>>>> driver "as is" it's getting me a 13-14% signal level and ~52% SNR when
>>>> scanning. Then, thinking that the problem is related to the low signal I
>>>> have I've changed the gain levels used to program the tuner: you were
>>>> using default values of 0 for all (in zl1003x_set_gain_params()
>>>> function, variables "rfg", "ba" and "bg"), and I've changed them top the
>>>> maximum (according to the documentation: rfg=1, ba=bg=3). With that, I'm
>>>> getting a 18% signal level, which is higher but still too low apparently
>>>> to get a lock.
>>>>
>>>> I've stopped here, because I really don't have the necessary background
>>>> to keep tweaking the driver. I just wanted to share it with you, as
>>>> maybe you have some idea on how to continue or what else could be done.
>>>>         
>>> So I can do only this guess:
>>> I changed demod driver to invert the Polarization voltage for a700 card.
>>> This is controlled by member-variable voltage_inverted.
>>>
>>> static struct mt312_config avertv_a700_mt312 = {
>>>         .demod_address = 0x0e,
>>>         .voltage_inverted = 1,
>>> };
>>>
>>> Can you try to comment the voltage_inverted line here (saa7134-dvb.c:
>>> line 865).
>>>
>>> BUT: If this helps we need to find out how to detect which card needs
>>> this enabled/disabled.
>>>
>>> Regards
>>> Matthias
>>>       
>> Hi,
>>   Nothing :(. Removing (or setting it to 0) the voltage_inverted member
>> doesn't seem to make any difference. I'm starting to suspect that there
>> is something wrong with my antennae setup, so I'll test it later using
>> an standalone STB or by plugging the card into a Windows computer and
>> using the supplied drivers.
>>
>>     
> Even better: Tune to a channel and measure the voltage the card outputs on LNB 
> connector.
>
> Regards
> Matthias
>
>   
Oops :D. Could you please elaborate a bit on this? I don't know what is 
the LNB connector you are referring to. Plus, I don't have right now any 
voltimeter, but if needed I'll grab one from work tomorrow.

Regards,
  Eduard



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Re: [linux-dvb] Some tests on Avermedia A700

[Matthias Schwarzott]

On Mittwoch, 13. Februar 2008, Eduard Huguet wrote:
> En/na Matthias Schwarzott ha escrit:
> > On Sonntag, 10. Februar 2008, Eduard Huguet wrote:
> >> En/na Matthias Schwarzott ha escrit:
> >>> On Samstag, 9. Februar 2008, Eduard Huguet wrote:
> >>>> Hi, Matthias
> >>>
> >>> Hi Eduard!
> >>>
> >>>>     I've been performing some tests using your patch for this card.
> >>>> Right now neither dvbscan nor kaffeine are able to find any channel on
> >>>> Astra (the sat. my dish points to).
> >>>>
> >>>> However, Kaffeine has been giving me some interesting results: with
> >>>> your driver "as is" it's getting me a 13-14% signal level and ~52% SNR
> >>>> when scanning. Then, thinking that the problem is related to the low
> >>>> signal I have I've changed the gain levels used to program the tuner:
> >>>> you were using default values of 0 for all (in
> >>>> zl1003x_set_gain_params() function, variables "rfg", "ba" and "bg"),
> >>>> and I've changed them top the maximum (according to the documentation:
> >>>> rfg=1, ba=bg=3). With that, I'm getting a 18% signal level, which is
> >>>> higher but still too low apparently to get a lock.
> >>>>
> >>>> I've stopped here, because I really don't have the necessary
> >>>> background to keep tweaking the driver. I just wanted to share it with
> >>>> you, as maybe you have some idea on how to continue or what else could
> >>>> be done.
> >>>
> >>> So I can do only this guess:
> >>> I changed demod driver to invert the Polarization voltage for a700
> >>> card. This is controlled by member-variable voltage_inverted.
> >>>
> >>> static struct mt312_config avertv_a700_mt312 = {
> >>>         .demod_address = 0x0e,
> >>>         .voltage_inverted = 1,
> >>> };
> >>>
> >>> Can you try to comment the voltage_inverted line here (saa7134-dvb.c:
> >>> line 865).
> >>>
> >>> BUT: If this helps we need to find out how to detect which card needs
> >>> this enabled/disabled.
> >>>
> >>> Regards
> >>> Matthias
> >>
> >> Hi,
> >>   Nothing :(. Removing (or setting it to 0) the voltage_inverted member
> >> doesn't seem to make any difference. I'm starting to suspect that there
> >> is something wrong with my antennae setup, so I'll test it later using
> >> an standalone STB or by plugging the card into a Windows computer and
> >> using the supplied drivers.
> >
> > Even better: Tune to a channel and measure the voltage the card outputs
> > on LNB connector.
> >
> > Regards
> > Matthias
>
> Oops :D. Could you please elaborate a bit on this? I don't know what is
> the LNB connector you are referring to. Plus, I don't have right now any
> voltimeter, but if needed I'll grab one from work tomorrow.
>

So, as I started playing with my A700 card, I discovered that the 
input-connector on the card, where one attaches the coax-cable to the 
lnb/dish, sent out wrong voltage.

13V / 18V was swapped. So I patched mt312 driver and added the setting 
voltage_inverted to reverse it.
Instead of just guessing what happens it is interesting to just call the 
dvb-apps example app set_voltage and measure what voltage the hw outputs.

Regards
Matthias

-- 
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Re: [linux-dvb] Some tests on Avermedia A700

[Eduard Huguet]

[-- Attachment #1.1: Type: text/plain, Size: 1015 bytes --]

(remove previous for clarity...)

Oops :D. Could you please elaborate a bit on this? I don't know what is
>> the LNB connector you are referring to. Plus, I don't have right now any
>> voltimeter, but if needed I'll grab one from work tomorrow.
>>
>>     
>
> So, as I started playing with my A700 card, I discovered that the 
> input-connector on the card, where one attaches the coax-cable to the 
> lnb/dish, sent out wrong voltage.
>
> 13V / 18V was swapped. So I patched mt312 driver and added the setting 
> voltage_inverted to reverse it.
> Instead of just guessing what happens it is interesting to just call the 
> dvb-apps example app set_voltage and measure what voltage the hw outputs.
>
> Regards
> Matthias

OK, I don't know exactly what you mean, but I'll try to measure the 
output voltage of the input connector. I think you mean this, don't you?

BTW, ¿where is the set_voltage app? I have media-tv/linuxtv-dvb-apps 
package installed and there is nothing with that name...

Regards,
  Eduard





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Re: [linux-dvb] Some tests on Avermedia A700

[Matthias Schwarzott]

On Mittwoch, 13. Februar 2008, Eduard Huguet wrote:
>
> OK, I don't know exactly what you mean, but I'll try to measure the
> output voltage of the input connector. I think you mean this, don't you?
>
> BTW, ¿where is the set_voltage app? I have media-tv/linuxtv-dvb-apps
> package installed and there is nothing with that name...
>

Another thing you can try is:
Boot windows and look at the GPIO values. (See v4l wiki for how to do this 
using regspy).

Use my latest diff, and try loading saa7134 with use_frontend=1 to use the 
alternative zl10313 driver.

Regards
Matthias

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Re: [linux-dvb] Some tests on Avermedia A700

[Eduard Huguet]

[-- Attachment #1.1: Type: text/plain, Size: 4871 bytes --]



2008/2/17, Matthias Schwarzott <zzam@gentoo.org <mailto:zzam@gentoo.org>>:

    On Mittwoch, 13. Februar 2008, Eduard Huguet wrote:
     >
     > OK, I don't know exactly what you mean, but I'll try to measure the
     > output voltage of the input connector. I think you mean this,
    don't you?
     >
     > BTW, ¿where is the set_voltage app? I have media-tv/linuxtv-dvb-apps
     > package installed and there is nothing with that name...
     >

    Another thing you can try is:
    Boot windows and look at the GPIO values. (See v4l wiki for how to
    do this
    using regspy).

    Use my latest diff, and try loading saa7134 with use_frontend=1 to
    use the
    alternative zl10313 driver.

    Regards
    Matthias

    --
    Matthias Schwarzott (zzam)




Hi,
    I've tried regspy (and regmon from sysinternals), but I really 
haven't found anything relevant. ¿What exactly should I look for? The 
V4L wiki is not very clear about it...

Anyway, I also tried the use_frontend=1 option for saa7134-dvb and I got 
more or less the same results:

$ dvbscan /usr/share/dvb/dvb-s/Astra-19.2E
scanning /usr/share/dvb/dvb-s/Astra-19.2E
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 12551500 V 22000000 5
> >> tune to: 12551:v:0:22000
DVB-S IF freq is 1951500
WARNING: >>> tuning failed!!!
> >> tune to: 12551:v:0:22000 (tuning failed)
DVB-S IF freq is 1951500
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.

The only difference with this frontend is that in Kaffeine I'm getting 
now a 0% signal level and a 99% SNR level. No idea why...

BTW, I've checked again the dmesg output of modprobe saa7134 after a 
cold boot (full power cycle: powering off, unplugged power cord and 
pressed power button to ensure the capacitors are emptied, so there is 
absolutely no remanent voltage in the motherboard...), and this is what 
I get:

[  116.429358] saa7130/34: v4l2 driver version 0.2.14 loaded
[  116.431261] ACPI: PCI Interrupt 0000:00:09.0[A] -> GSI 17 (level, 
low) -> IRQ 23
[  116.431369] saa7133[0]: found at 0000:00:09.0, rev: 209, irq: 23, 
latency: 64, mmio: 0xf7ffa800
[  116.431435] saa7133[0]: subsystem: 1461:a7a1, board: Avermedia DVB-S 
Pro A700 [card=133,autodetected]
[  116.431519] saa7133[0]: board init: gpio is *202f600*
[  116.696295] saa7133[0]: i2c eeprom 00: 61 14 a1 a7 ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696321] saa7133[0]: i2c eeprom 10: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696358] saa7133[0]: i2c eeprom 20: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696372] saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696386] saa7133[0]: i2c eeprom 40: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696400] saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696415] saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696429] saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696443] saa7133[0]: i2c eeprom 80: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696456] saa7133[0]: i2c eeprom 90: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696469] saa7133[0]: i2c eeprom a0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696482] saa7133[0]: i2c eeprom b0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696498] saa7133[0]: i2c eeprom c0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696513] saa7133[0]: i2c eeprom d0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.696535] saa7133[0]: i2c eeprom e0: *00 01 81 af ea b5* ff ff ff 
ff ff ff ff ff ff ff
[  116.696557] saa7133[0]: i2c eeprom f0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[  116.700280] saa7133[0]: i2c scan: found device @ 0x1c  [???]
[  116.713245] saa7133[0]: i2c scan: found device @ 0xa0  [eeprom]
[  116.723550] saa7133[0]: registered device video0 [v4l2]
[  116.725685] saa7133[0]: registered device vbi0
[  117.256803] demodulator: zl10313: Demodulator attached @ i2c address 0x0e
[  117.284726] zl1003x: zl1003x: Power-On-Reset bit enabled - may need 
to reinitialize tuner
[  117.284743] zl1003x: zl10036_init_regs
[  117.302667] zl1003x_attach: tuner initialization (Zarlink ZL10036 
addr=0x60) ok
[  117.302687] DVB: registering new adapter (saa7133[0])
[  117.302719] DVB: registering frontend 0 (Zarlink ZL10313 DVB-S)...
[  117.335612] zl1003x: zl1003x_sleep


As you can see, the initial gpio value is different from what is listed 
in the wiki for my card (2f200). Also the contents of the eeprom are 
also different, and surprisingly matches the ones listed for the hybrid 
version. I suppose that this is mistake in the wiki entry, as I can 
assure you that my card is the standard DVB-S Pro...

Best regards,
  Eduard






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