Re: ATMEL camera interface

[Sedji Gaouaou <sedji.gaouaou@atmel.com>]

Well I need contiguous memory, so I guess I will have a look at 
mx1_camera.c? Is there another example?

What do you mean by videobuf implementation? As I said I just need a 
contiguous memory.

Le 5/3/2010 4:03 PM, Guennadi Liakhovetski a écrit :
> On Mon, 3 May 2010, Sedji Gaouaou wrote:
>
>> Hi,
>>
>> I will try to write a soc driver(it seems easier ;)).
>>
>> Are the mx?_camera.c a good starting point?
>
> In principle - yes. But think about one pretty important distinction -
> what videobuf implementation is your driver going to use? Are you going to
> support scatter-gather or only contiguous buffers? If SG - the only such
> example in the mainline is pxa_camera.c. If contiguous - feel free to use
> any one of the rest. Further, mx3_camera uses the dmaengine API, others
> don't. Hope, this will simplify your choice a bit;)
>
> Thanks
> Guennadi
>
>> Regards,
>> Sedji
>>
>> Le 4/29/2010 6:35 PM, Guennadi Liakhovetski a écrit :
>>> Hi Sedji
>>>
>>> On Thu, 29 Apr 2010, Sedji Gaouaou wrote:
>>>
>>>> Hi,
>>>>
>>>> I need to re-work my driver so I could commit it to the community.
>>>> Is there a git tree that I can use?
>>>
>>> Nice to hear that! As far as soc-camera is concerned, the present APIs are
>>> pretty stable. Just use the Linus' git tree, or, if you like, you can use
>>> the v4l-dvb git tree at git://linuxtv.org/v4l-dvb.git. In fact, you don't
>>> have to use the soc-camera API these days, you can just write a complete
>>> v4l2-device driver, using the v4l2-subdev API to interface to video
>>> clients (sensors, decoders, etc.) However, you can still write your driver
>>> as an soc-camera host driver, which would make your task a bit easier at
>>> the cost of some reduced flexibility, it's up to you to decide.
>>>
>>> Thanks
>>> Guennadi
>>> ---
>>> Guennadi Liakhovetski, Ph.D.
>>> Freelance Open-Source Software Developer
>>> http://www.open-technology.de/
>>>
>>
>>
>
> ---
> Guennadi Liakhovetski, Ph.D.
> Freelance Open-Source Software Developer
> http://www.open-technology.de/
>


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