HI, James
James Fidell wrote:
Replying to myself:
So, everything looks good to me so far. The only outstanding problem
appears to be getting the firmware loaded. Looking through the latest
mercurial code, it appears that it's the saa7134-dvb module that's
supposed to start the firmware loading off, so I guess I need to get
the mercurial code built and see what happens.
And now I think I see why...
Before attempting to upload new firmware, both tda10045_fwupload and
tda10046_fwupload in tda1004x.c call tda1004x_check_upload_ok. This
returns -EIO if it couldn't find valid firmware or 0 if valid firmware
is found. Both the fwupload functions do:
if (tda1004x_check_upload_ok(state) == 0)
return 0;
which makes it look to me as if new firmware will never be uploaded
to the card if it already has valid firmware of an earlier version.
I may be heading in completely the wrong direction with this, but out
of interest I changed the above code to force a firmware upload, and
now get dmesg output:
tda1004x: found firmware revision 26 -- ok
tda1004x: waiting for firmware upload...
tda1004x: timeout waiting for DSP ready
tda1004x: found firmware revision 26 -- ok
So either it still isn't uploading, or the version I downloaded a couple
of hours ago isn't actually revision 29 at all. Is there any easy way
to check?
You are right, a new firmware download is only initiated when no firmware
is present. This is by intention and should not be changed.
Its a bit dangerous to fiddle around with the firmware loading mechanism,
this can easily end up in a crash of the on chip processor.
On some Compro cards, the PCI reset is not forwarded to the other chips.
So you need a power cycle to get the chips reset and to load other
firmware.
A last hint. When i investigated the tuner module of you card, i noticed
that it tunes very slowly. When you notice that several scans give different
results, the cause can easily be that the tuner can receive all signals, but
a timeout of the scan routine prevents this.
Hartmut
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