Re: OMAP34XXCAM: Micron mt9d111 sensor support?

Gary Thomas
2009-06-23T13:40:14Z

Aguirre Rodriguez, Sergio Alberto wrote:
> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
> owner@vger.kernel.org] On Behalf Of Aguirre Rodriguez, Sergio Alberto
>> From: Gary Thomas [mailto:gary@mlbassoc.com]
>>> Aguirre Rodriguez, Sergio Alberto wrote:
>>>> From: Gary Thomas [mailto:gary@mlbassoc.com]
>>>>> Aguirre Rodriguez, Sergio Alberto wrote:
>>>>>> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
>>>>>> owner@vger.kernel.org] On Behalf Of Zach LeRoy
>>>>>>> I am working on adding support for a micron 2 MP sensor: mt9d111 on
>> a
>>>>>>> gumsitx overo. This is a i2c-controlled sensor. Ideally, I would
>>> like
>>>>> to
>>>>>>> use the omap34xxcam driver to interface with this sensor. I am
>>>>> wondering
>>>>>>> if there are currently any distributions which already include
>>> support
>>>>> for
>>>>>>> this sensor through the omap34xxcam driver, or if anyone else is
>>>>>>> interested in this topic.
>>>>>>>
>>>>>> Hi Zach,
>>>>>>
>>>>>> I'm working along with Sakari Ailus and others in this omap34xxcam
>>>>> driver you're talking about, and we are in the process to provide a
>>> newer
>>>>> patchset to work on the latest l-o tree.
>>>>>> Sakari is sharing the camera core here:
>>>>>>
>>>>>> http://gitorious.org/omap3camera
>>>>>>
>>>>>> And I have also this repository which contains a snapshot of
>> Sakari's
>>>>> tree + support from some sensors I have available for the 3430SDP and
>>> LDP
>>>>> (the name could confuse with the above, but I'll change the
>>> name/location
>>>>> soon):
>>>>>> http://gitorious.org/omap3-linux-camera-driver
>>>>>>
>>>>>> Testing the driver with as much sensors as we can is very
>> interesting
>>>>> (at least for me), because that help us spot possible bugs that
>> aren't
>>>>> seen with our current HW. So, I'll be looking forward if you add this
>>>>> sensor driver to the supported list :)
>>>>> I'd like to move forward using this on OMAP/3530 with TVP5150 (S-
>> video
>>> in)
>>>>> Sadly, the tree above (omap3-linux-camera-driver) won't build for the
>>>>> Zoom/LDP:
>>>>> CC arch/arm/mach-omap2/board-ldp-camera.o
>>>>> /local/omap3-linux-camera-driver/arch/arm/mach-omap2/board-ldp-
>>>>> camera.c:59:
>>>>> error: implicit declaration of function 'PAGE_ALIGN'
>>>>> /local/omap3-linux-camera-driver/arch/arm/mach-omap2/board-ldp-
>>>>> camera.c:59:
>>>>> error: initializer element is not constant
>>>>> /local/omap3-linux-camera-driver/arch/arm/mach-omap2/board-ldp-
>>>>> camera.c:59:
>>>>> error: (near initialization for 'ov3640_hwc.capture_mem')
>>>>> /local/omap3-linux-camera-driver/arch/arm/mach-omap2/board-ldp-
>>> camera.c:
>>>>> In function 'ov3640_sensor_set_prv_data':
>>>>> /local/omap3-linux-camera-driver/arch/arm/mach-omap2/board-ldp-
>>>>> camera.c:89:
>>>>> error: 'hwc' undeclared (first use in this function)
>>>>> /local/omap3-linux-camera-driver/arch/arm/mach-omap2/board-ldp-
>>>>> camera.c:89:
>>>>> error: (Each undeclared identifier is reported only once
>>>>> /local/omap3-linux-camera-driver/arch/arm/mach-omap2/board-ldp-
>>>>> camera.c:89:
>>>>> error: for each function it appears in.)
>>>>>
>>>>> Looking at the code, it seems that some pieces are missing - merge
>>>>> problem maybe?
>>>> Hi Gary,
>>>>
>>>> I'm currently on the process to rebase and verify all this code on
>>> 3430SDP, Zoom1 and soon Zoom2.
>>>> Here you can find my progress:
>>>>
>>>> http://dev.omapzoom.org/?p=saaguirre/linux-omap-camera.git;a=summary
>>>>
>>>> Check devel branch, which contains all latest Sakari's tree patches
>>> (http://gitorious.org/omap3camera) rebased on top of latest Kevin's l-o
>> PM
>>> tree, plus the patches, which are still in works, to make the above
>>> mentioned platforms to work.
>>>> I'm first trying to make 3430SDP work, don't have a Zoom1/Zoom2 handy
>>> right now...
>>>> My gitorious tree will eventually disappear, as I can work better with
>>> this new one.
>>>> I'll consolidate some patches when this sensor code is ready, and will
>>> CC you if interested.
>>> Thanks. I've already checked out this tree and at least
>>> it builds for the Zoom (I have one here). Is this in a
>>> state where I can test it for you? What do you use to
>>> capture video from the sensor?
>> I normally use a small test binary I wrote which saves the captured frames
>> to memory, so later I can see them with either IrfanView (when capturing
>> RAW images) or PYUV for seeing the YUV422 images.
>>
>> You should be able to use any standard V4l2 capturing application anyways.
>>
>
> Btw, any contribution would be completely welcome. Either on Testing or on development. :)
>
> Thanks for your interest in helping.

I've built for the Zoom, now I just need to figure out how
to capture the data. I'll let you know if I have any questions
or problems.

Thanks

--
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Gary Thomas | Consulting for the
MLB Associates | Embedded world
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