Re: OV7670 driver for Mini2440

Re: OV7670 driver for Mini2440

[Sylwester Nawrocki]

Hi Anvesh,

On 03/19/2013 03:41 PM, Anvesh Manne wrote:
> Hello,

Cc linux-media mailing list.

> I am trying to get the OV7670 module to work with Mini2440. Despite my
> best efforts, i am ending with the following image.

OK, what kernel version and drivers are you currently using. Is it some
custom BSP or the Pengutronix's one ?

The image looks like there is a mismatch in configured pixel format at
the sensor and the s3c2440 CAMIF device.

> Can you guide me on how to install your driver from
> (http://git.linuxtv.org/snawrocki/media.git/commit/caa3b9af18f344ef9b21377f7dc4631bd6a99d19)
> along with the driver from http://patchwork.linuxtv.org/patch/563/ ?

There is already ov7670 sensor driver in the mainline kernel that
looks much better then the one from the link above. With a small
patch we should be able to use it with Mini2440.

If possible, I suggest you to use latest kernel that can be found here:
http://git.linuxtv.org/media_tree.git

> I have directly interfaced OV7670 to the Camera port of Mini2440.
>
> Thanks for you help.
>
> Anvesh

--

Regards,
Sylwester

Re: OV7670 driver for Mini2440

[Anvesh Manne]

Hi Sylwester,

Sorry the extreme delay in replying..

I using BSP from friendly arm. 

SInce i am new to embedded linux, can you tell me how to install a 0v7670 driver for mini2440?

I currently modified the v4l2 driver(for ov9650) written by Vladimir (http://code.google.com/p/s3c2440camera/) to suit the 0v7670. But i am not able to get a perfect image from the camera. Can you point me to tried and test v4l2 driver for 7670?

Thanks,
Anvesh

On 20-Mar-2013, at 1:57 AM, Sylwester Nawrocki wrote:

> Hi Anvesh,
> 
> On 03/19/2013 03:41 PM, Anvesh Manne wrote:
>> Hello,
> 
> Cc linux-media mailing list.
> 
>> I am trying to get the OV7670 module to work with Mini2440. Despite my
>> best efforts, i am ending with the following image.
> 
> OK, what kernel version and drivers are you currently using. Is it some
> custom BSP or the Pengutronix's one ?
> 
> The image looks like there is a mismatch in configured pixel format at
> the sensor and the s3c2440 CAMIF device.
> 
>> Can you guide me on how to install your driver from
>> (http://git.linuxtv.org/snawrocki/media.git/commit/caa3b9af18f344ef9b21377f7dc4631bd6a99d19)
>> along with the driver from http://patchwork.linuxtv.org/patch/563/ ?
> 
> There is already ov7670 sensor driver in the mainline kernel that
> looks much better then the one from the link above. With a small
> patch we should be able to use it with Mini2440.
> 
> If possible, I suggest you to use latest kernel that can be found here:
> http://git.linuxtv.org/media_tree.git
> 
>> I have directly interfaced OV7670 to the Camera port of Mini2440.
>> 
>> Thanks for you help.
>> 
>> Anvesh
> 
> --
> 
> Regards,
> Sylwester

Re: OV7670 driver for Mini2440

[Anvesh Manne]

Hi Sylwester,

Can you guide me on how to write a patch to interface ov7670 with mini2440?

Thnaks,
Anvesh

On 20-Mar-2013, at 1:57 AM, Sylwester Nawrocki wrote:

> Hi Anvesh,
> 
> On 03/19/2013 03:41 PM, Anvesh Manne wrote:
>> Hello,
> 
> Cc linux-media mailing list.
> 
>> I am trying to get the OV7670 module to work with Mini2440. Despite my
>> best efforts, i am ending with the following image.
> 
> OK, what kernel version and drivers are you currently using. Is it some
> custom BSP or the Pengutronix's one ?
> 
> The image looks like there is a mismatch in configured pixel format at
> the sensor and the s3c2440 CAMIF device.
> 
>> Can you guide me on how to install your driver from
>> (http://git.linuxtv.org/snawrocki/media.git/commit/caa3b9af18f344ef9b21377f7dc4631bd6a99d19)
>> along with the driver from http://patchwork.linuxtv.org/patch/563/ ?
> 
> There is already ov7670 sensor driver in the mainline kernel that
> looks much better then the one from the link above. With a small
> patch we should be able to use it with Mini2440.
> 
> If possible, I suggest you to use latest kernel that can be found here:
> http://git.linuxtv.org/media_tree.git
> 
>> I have directly interfaced OV7670 to the Camera port of Mini2440.
>> 
>> Thanks for you help.
>> 
>> Anvesh
> 
> --
> 
> Regards,
> Sylwester