I have recently been given a Compro VideoMate T750 to get working with
Linux. Unfortunately it is not yet supported by the v4l-dvb drivers.
This is an Australian card has the following features:
- Analog TV Tuner (PAL-BG?)
- Analog TV Capture (SVideo Composite)
- FM Radio
- IR
- DVB-T * 2
I
20.4800
John.
John Newbigin wrote:
I have recently been given a Compro VideoMate T750 to get working with
Linux. Unfortunately it is not yet supported by the v4l-dvb drivers.
This is an Australian card has the following features:
- Analog TV Tuner (PAL-BG?)
- Analog TV Capture (SVideo Composite
to other compro cards.
When changing from analog to digital, the SAA7134_TS_PARALLEL changed.
e4 was for DVB but I didn't capture the analog :-(
I think I'll put the card back into a linux box and try hacking some
things together.
John.
John Newbigin wrote:
I pulled the card and found
metal case that might help narrow down what might be inside.
John.
John Newbigin wrote:
This is more of a status update than any major breakthrough.
I got the IR working under linux by using an existing card type. I
also got regspy on windows working but it only shows some GPSTATUS
bits
The lid is a folded sheet of metal and soldered on at 4 points. I
stared with pliers but in then used the dremel to remove both the covers.
The digital tuner is:
Quantek QT1010 (441570113 054511DJ)
I am pretty use the analog tuner is:
Xceive XC2028ACQ
There are some more numbers but it is
I was wondering if someone could help clarify some terminology used by
the dvb drivers. I am a bit confused between the use of the following:
- frontend
- tuner
- pll
- demod
I am also wondering what i2c_gate is and what it is for.
Thanks
John.
to help out.
I am going to borrow a scope from work and then I should be able to
snoop on the i2c bus while using the windows driver. That should get
things moving.
John.
John Newbigin wrote:
The lid is a folded sheet of metal and soldered on at 4 points. I
stared with pliers but in then used
I have made some slow progress with the T750. I have implemented
loading the firmware for the CX2028 but I have hit a problem.
After loading the firmware, there are some commands (known as the 'MAGIC
VALUES') which need to be issued. These are the same as for the
CX3028. After this final
I don't know how that would be added.
Anyway, I have loading firmware but still no TV. I think I am close though.
i2c traces and firmware can be downloaded from here
http://www.chrysocome.net/downloads/t750-logs-0.1.tar.gz
I'll try and clean up my code and post a patch tomorrow.
John.
John
/07, John Newbigin [EMAIL PROTECTED] wrote:
Here I go replying to myself again.
I have had some success with loading the firmware. I has a suspicion
that I needed to twiddle the GPIO pins but could not get it to work.
Studying the xc3028 driver showed me the way. The GPIO needs to be
first
Success!
I have to sort out the channels in tvtime and no audio yet but analog tv
is working.
I'll post an updated patch which works against the experimental branch.
John.
Markus Rechberger wrote:
On 4/24/07, John Newbigin [EMAIL PROTECTED] wrote:
Markus Rechberger wrote:
Hi,
did you
I have uploaded a patch which adds T750 support to the
http://mcentral.de/hg/~mrec/v4l-dvb-experimental branch.
The patch is here
http://www.chrysocome.net/downloads/v4l-dvb-experimental-t750-0.2.diff
At the moment only analog TV is supported. So far I have not got any
audio and radio is
This patch add support for Compro VideoMate T750 to the saa7134 driver
in v4l-dvb-experimental
Analog TV is working
Digital is detected but not yet working
Signed-off-by: John Newbigin [EMAIL PROTECTED]
diff -r e4f0c12cacc3 linux/drivers/media/video/saa7134/saa7134-cards.c
--- a/linux/drivers
Is this the 14f1:8802 Subsystem: 18ac:db10
If so, I have the same card. It does not support audio capture. You
must you the supplied cable to connect to you sound card aux/line in.
You then must configure alsa correctly to allow recording from the input
you are using (test with arecord |
PROTECTED]
On Behalf Of John Newbigin
Sent: Saturday, 5 May 2007 4:47 PM
To: linux-dvb@linuxtv.org
Subject: Re: [linux-dvb] Divco Fusion HDTV DVB-T Plus NoAudio for
composite/s-video input
Is this the 14f1:8802 Subsystem: 18ac:db10
If so, I have the same card. It does not support audio capture
Markus Rechberger wrote:
Anyway do you know the exact difference between DVB-T in Australia and
other countries?
I can answer that. AS4599 and AS4933 are the standards for DVB-T in
Australia. It is basically ETSI standard DVB-T. It defines the
meanings of content descriptors and ratings
The transmissions settings do change from time to time. The only thing
you can rely on is the frequency, and then it could change as well, but
only +-125kHz. I have found with my Dvico Fusion Plus card that using
auto for everything works, and the card auto detects the 125kHz offset
as well.
Australian LCN is based on the UK one (I think they are identical
structure, it is just the meaning of the data which is different).
dvbscan does not pick out this info. I have a program which does if you
want to test it. (It is descriptor 83 and defined in AS4933.1). You can
view the draft
Markus Rechberger wrote:
Hi John,
...
can you give us more information about that? The Xceive
firmwarepackage contains extra firmwares for Australia, it would be
good to directly focus on the specific difference instead of passing
eg. a countrycode to a dvb driver (this shouldn't be an
IMHO, the only correct way to scan for channels is:
- get an authoritative list of frequencies (I have compiled a list from
various sources which is included below. 2 channels have been moved by
1MHz to line things up a bit better. I have included both the old and
the new frequencies in my
change from analog to
digital, using their existing
channels.
So it is special legacy case and unless you want to hack into the link,
they do not need to be scanned.
John.
John Newbigin wrote:
IMHO, the only correct way to scan for channels is:
- get an authoritative list of frequencies (I have
Unfortunately I am unable to continue working on the T750. I have given
the card to a windows user who can make some use of it.
If anyone else wants to work on it I am happy to pass on the information
I have collected.
John.
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