[linux-dvb] A patch and firmware for Australian Dual Digital 4 users

Markus Rechberger mrechberger at gmail.com
Tue May 8 02:23:22 CEST 2007


On 5/8/07, ras243-dvb at yahoo.com <ras243-dvb at yahoo.com> wrote:
> > Hi Roger,
>
> Hello again Markus,
>
> > > The firmware I attached is not a complete replacement for the original
> > > firmware.  It should replace only the 7MHz (xc3028_DTV7_2633.i2c.fw) for
> > > Australia.  The base firmware (xc3028_init0.i2c.fw) needs to be loaded
> > > first.
> >
> > Did you forget to attach that file now?
>
> I didn't attach the base firmware (or default 8MHz) as I was trying to
> provide
> a minimal set of changes from that which works elsewhere.  We can certainly
> create a tar file containing the three files needed for Australia.
>
> > I think including the offset in the firmware would be a good way, I
> > have the specs for firmware 2.5, the driver was written for firmware
> > 2.7.
> > The offset is indeed different with firmware 2.5, so best would be to
> > make it as generic as possible.
>
> I just checked the 'v2' firmware and with the Australian 7MHz file (and
> 2250000
> offset) it seems to work.  I'm now getting somewhat confused between the
> internal version numbers you're mentioning and those associated with the
> firmware filenames (v2,v3,etc).  Is there a way I can get a copy of the
> specs
> for the firmware - it might help identify why I needed to add a few bytes to
> the end to get things working in Australia?
>
> > for now we can put a specific firmware online for Australia, I don't
> > know what's the difference between AU and the rest of the world, in
> > the end userspace applications should be able to adjust that setting.
>
> I think with regards to placing the offset for the tuning of the xc3028 in
> the
> xc3028 firmware file you're right, it's a good idea.
>
> The input frequency difference in the zl10353 demodulator is my main concern
> as
> I can't think of a currently available mechanism to do this cleanly.  Can
> someone confirm that if we place 0x2217 in registers 0x6C,0x6D of the
> zl10353
> that this will work for users in other parts of the world with this board?
> I
> guess we could always pass it in as a module parameter (which Daniel may
> have
> mentioned).  Or are you suggesting something else and we're getting mixed
> signals?
>

you should work with the v4l-dvb-experimental tree it makes everything
much easier for you.
I added a parameter for the inputfrequency to the zl10353 and mt352 there.

Markus



More information about the linux-dvb mailing list