[ivtv-users] cx18: Question for users...

[Andy Walls]

On Mon, 2008-09-01 at 12:51 +0200, bruncko wrote:
> Dear Andy,
> 
> firstly: I have notebook Toshiba Qosmio G30-155, and also I have the 
> problem with cx18.ko. My situation:
> lspci -tvv
> -[0000:00]-+-00.0  Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 
> 945GT Express Memory Controller Hub
[...]
>            +-1e.0-[0000:06-08]--+-09.0  Conexant CX23418 Single-Chip 
> MPEG-2 Encoder with Integrated Analog Video/Broadcast Audio Decoder
[...]
> Regards,
>                     Dusan


Dusan,

I wouldn't think you would have a problem with the chip not responding
with an Intel 82945 and 82801G.  But the current driver does not have
Qosmio support in it yet.  I have a repository here with a start for
Qosmio support:

http://linuxtv.org/hg/~awalls/cx18-new-cards/
http://linuxtv.org/hg/~awalls/cx18-new-cards/archive/tip.tar.bz2

But no one has tested it and given feedback.  If the Toshiba Qosmio
entry in cx18-cards.c has the same PCI ID for your cards, then hopefully
you can at least see analog video using the Composite 1 or SVideo1
input.

Regards,
Andy


> Andy Walls wrote:
> > Hi all,
> >
> > I have a question.
> >
> > For users of HVR-1600 and other CX23418 based cards that basically work:
> > is your card behind a PCI-PCI bridge chip that is set for "subtractive
> > decode"?
> >
> > For users of HVR-1600 and other CX23418 based cards that basically don't
> > work: Is your card behind a not behind a PCI-PCI bridge chip that is set
> > for "subtractive decode" (i.e. directly behind a host bridge, or behind
> > a PCI-PCI bridge set for positive decode)?
> >
> >
> > Here's an example, run as root, showing how to see if you have the
> > CX23418 behind a PCI-PCI bridge set for subtractive decode:
> >
> > # lspci -tvv
> > -[0000:00]-+-00.0  ATI Technologies Inc Unknown device 7911
> >            +-01.0-[0000:01]----05.0  ATI Technologies Inc Radeon 2100
> >            [...]
> >            +-14.4-[0000:03]--+-02.0  Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder
> >            |                 \-03.0  Conexant CX23418 Single-Chip MPEG-2 Encoder with Integrated Analog Video/Broadcast Audio Decoder
> >            [...]
> >
> > >From the tree view above, we see the CX23418 is behind the bridge at
> > 00:14.4.
> >
> > # lspci -s 0:14.4 -vv -x
> > 00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge (prog-if 01 [Subtractive decode])
> >                                                                           ^^^^^^^^^^^^^^^^^^^^^^^    
> > [...]
> > 00: 02 10 84 43 07 01 a0 02 00 01 04 06 00 40 81 00
> >                                ^^^^^^^^
> >                                ||  
> > Subtractive Decode PCI-PCI ----++
> > [...]
> >
> > Here we see in the first text line for the bridge, lspci has shown us
> > its a PCI-PCI bridge in subtractive decode.  This could also be read off
> > of bytes 09x-0xb of the configuration space.  The byte at 0x9 being 1
> > indicate subtractive decode vs positive decode.
> >
> >
> >
> > Thanks in advance for your responses.
> >
> > Regards,
> > Andy
> >
> >
> >
> >
> >
> > _______________________________________________
> > ivtv-users mailing list
> > ivtv-users at ivtvdriver.org
> > http://ivtvdriver.org/mailman/listinfo/ivtv-users
> >   
> 
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