Re: [linux-dvb] Some tests on Avermedia A700
2008/2/17, Matthias Schwarzott [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]: 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 2200 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 :00:09.0[A] - GSI 17 (level, low) - IRQ 23 [ 116.431369] saa7133[0]: found at :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 ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
Re: [linux-dvb] Some tests on Avermedia A700
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) ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
Re: [linux-dvb] Some tests on Avermedia A700
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 :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
Re: [linux-dvb] Some tests on Avermedia A700
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 :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 -- Matthias Schwarzott (zzam) ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
Re: [linux-dvb] Some tests on Avermedia A700
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
--
Matthias Schwarzott (zzam)
___
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Re: [linux-dvb] Some tests on Avermedia A700
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
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
--
Matthias Schwarzott (zzam)
___
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Re: [linux-dvb] Some tests on Avermedia A700
(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 ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
Re: [linux-dvb] Some tests on Avermedia A700
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
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
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
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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