From: Gary Thomas <gary@mlbassoc.com>
To: Enrico <ebutera@users.berlios.de>
Cc: linux-media@vger.kernel.org
Subject: Re: OMAP3 ISP and UYVY422
Date: Thu, 08 Sep 2011 07:40:47 -0600 [thread overview]
Message-ID: <4E68C5DF.1040405@mlbassoc.com> (raw)
In-Reply-To: <CA+2YH7tTbPNjK8+Ao-H30huYmdtWRJFvNbkoD=HQXeppMaZ9aw@mail.gmail.com>
On 2011-09-08 07:22, Enrico wrote:
> On Wed, Sep 7, 2011 at 5:55 PM, Gary Thomas<gary@mlbassoc.com> wrote:
>> My UYVY422 data looks like this (raw-3.0):
>> 0000000: 0080 0080 007f 0080 007f 0080 007f 0080 ................
>> 0000010: 0080 0080 0080 0080 0080 0080 0080 0080 ................
>> 0000020: 0080 0080 0080 0080 007f 0080 0080 0080 ................
>> 0000030: 0080 007f 0080 007f 0080 007f 0080 007f ................
>>
>> It should look more like this (raw-2.6.32):
>> 0000000: 8034 8033 8034 8034 8034 8034 8034 8034 .4.3.4.4.4.4.4.4
>> 0000010: 8034 8033 8034 8034 8034 8034 8034 8033 .4.3.4.4.4.4.4.3
>> 0000020: 8034 8034 8034 8034 8034 8034 8033 8032 .4.4.4.4.4.4.3.2
>> 0000030: 8034 8035 8033 8034 8033 8034 8033 8034 .4.5.3.4.3.4.3.4
>>
>> n.b. these are grabbed from the same image on the camera, on the same
>> board - either running the new media controller code (3.0+) or old TI
>> PSP code (2.6.32)
>>
>> I've compared the CCDC registers between the two systems and they look
>> pretty good to me (none of the differences explain the behaviour above)
>>
>> It looks to me like the 8 bit data coming into the CCDC is not being
>> packed properly, as well as the second byte of each pair is being
>> dropped.
>>
>> Any hints on where to look, what might be mis-configured, etc?
>
> Apart from that (i have the same issue) do you get the full 720
> horizontal pixels?
>
> Because this is what i get:
>
> http://imageshack.us/f/215/newkernel0.png/
>
> It's not simply "stretched", the right part is missing. Did you change
> some ccdc parameters in the files i sent you?
This is precisely what I see. If you look at the raw UYVY data as
I did, you'll see that 1/2 of the data is being lost. It looks like
there is some setup wrong in how the data is being moved from the CCDC
to memory but I don't know enough about the code to know where that
might be configured.
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
next prev parent reply other threads:[~2011-09-08 13:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-07 15:55 OMAP3 ISP and UYVY422 Gary Thomas
2011-09-08 13:22 ` Enrico
2011-09-08 13:40 ` Gary Thomas [this message]
2011-09-08 13:43 ` Gary Thomas
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