Re: [MyHD-develop] Help with PCI traces

[Marchant, S. <Ste...@co...>]

I think I found something interesting going on with the driver bootup =
code with respect to the VSB tuner (Nextwave demodulator).
The driver is apparently downloading some kind of data or firmware =
through I2C to the part. I found the corresponding data in the =
MDP100_XP.sys file (Version 1.66.0.1 with CRC-32 checksum 0x5F7CD3D5) at =
offset 0x62BB8.

In any case here are the dumps:
BOOT5.lst - Here's the correctly decoded init code for the MSP audio =
chip (was wrongly decoded in BOOT4.lst before and truncated the long I2C =
cycles) and the beginnings of the VSB init
BOOT6.lst - More of the VSB dump...
BOOT7.lst - ... and so on...
...

Still to do next is to start capturing when the VSB dump is done.
Regards,
-- Steve

-----Original Message-----
From: myh...@li...
[mailto:myh...@li...]On Behalf Of
Marchant, Stephen
Sent: Friday, March 09, 2007 5:14 PM
To: Discussion for TL880 driver development
Subject: Re: [MyHD-develop] Help with PCI traces


I found the datasheets at www.datasheetcatalog.com
So everyone can look there if they don't have a Micronas contact.
For the MSP3440G:
http://www.tranzistoare.ro/datasheets/restul/361056_DS.pdf
For the VPX3226E:
http://www.tranzistoare.ro/datasheets2/63/631583_1.pdf

We'll see what I can get to this weekend.
Regards,
-- Steve

-----Original Message-----
From: myh...@li...
[mailto:myh...@li...]On Behalf Of Mike
Bourgeous
Sent: Thursday, March 08, 2007 5:09 PM
To: myh...@li...
Subject: Re: [MyHD-develop] Help with PCI traces


Cool.  I have the VPX chip docs, but I can't send them to you.  However, =

Micronas will simply give you access to the docs if you say why you want =

them using the form on their website.  When I'm back at my PC I can take =
a=20
look at the doc and see how these transactions differ from what's in the =

existing VPX driver from the DVB code (which is very, very limited) and =
what=20
I've done in the MyHD CVS.

I agree that it makes sense to initialize the hardware first.  I have =
just=20
become so anxious to see some results that I tend to get ahead of myself =
:).=20
  Another lurker on the list (I don't know if he wants his name used, so =

I'll let him announce himself if he likes) is working on the init code =
from=20
a disassembly/debugger approach using some pro driver tools, as am I =
using a=20
disassembler and TL880Spy.  So, between the three of us, we ought to be =
able=20
to get the card init figured out relatively quickly.

Mike


>From: "Marchant, Stephen" <Ste...@co...>
>Reply-To: Discussion for TL880 driver development=20
><myh...@li...>
>To: "Discussion for TL880 driver development"=20
><myh...@li...>
>Subject: Re: [MyHD-develop] Help with PCI traces
>Date: Thu, 8 Mar 2007 11:34:58 -0500
>
>Yeah, the i2c traces were hard to follow so I added some more=20
>'intelligence' to the parsing script and it decodes everything very =
neatly.=20
>So attached are the I2C dumps broken into a few separate chunks as =
before.
>
>BOOT2 - part 2
>BOOT3 - part 3 (some overlap from part 2 and not sure why there's=20
>differences in the overlap)
>BOOT4 - part 4 (overlaps part 3)
>
>So it looks like the entire initialization of the Micronas video chip =
is=20
>captured here and then there are a few lines of the audio chip init.
>
>I'm going to work on getting the rest of the driver bootup init =
sequences=20
>captured before moving to the functional pieces, just to be complete. =
Also=20
>I think it makes sense to init the hardware correctly before you can =
start=20
>capturing video frames.
>
>Regards,
>-- Steve

_________________________________________________________________
Win a Zune(tm)-make MSN=AE your homepage for your chance to win!=20
http://homepage.msn.com/zune?icid=3Dhmetagline



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