Re: OmniVision OV9655 camera chip via soc-camera interface

[Stefan Herbrechtsmeier <hbmeier@xxxxxxxxxxxxxxxxxxxx>]

Guennadi Liakhovetski schrieb:
> On Mon, 14 Apr 2008, Stefan Herbrechtsmeier wrote:
>
>   
> > I'm writing a driver for the OmniVision OV9655 camera chip connected to a
> > PXA270 processor. I based my work on the soc_camera interface, but I need some
> > additional gpios for reset and power_enable. What is the best way to pass this
> > information to the driver?
> >     
>
> Look in pxa_camera.c, e.g., in pxa_camera_activate. There are function calls like
>
> pxa_camera_activate(struct pxa_camera_dev *pcdev)
> {
> 	struct pxacamera_platform_data *pdata = pcdev->pdata;
>
> ...
>
> 	pdata->power(pcdev->dev, 1);
>
> ...
>
> 	pdata->reset(pcdev->dev, 1);
>
> in it, which should do exactly what you need. And they are supposed to be 
> implemented in the platform, so, you have all the required GPIO 
> information you need there. That is exactly the reason they are defined 
> that way - because they were thought to be platform-dependent. Let me know 
> if there's still anything missing. It is still a work in progress, so, we 
> are flexible and can add any (reasonable) APIs we find useful.
>   
Thanks, that exact what I search, but maybe this functions should be in 
the soc_camera_link. I think this functions belong to the camera chip 
and not to the capture interface. This allows more than one camera chip 
on one capture interface with separate enable and reset.
> Thanks
> Guennadi
> ---
> Guennadi Liakhovetski
>   
Thanks
   Stefan

--
Dipl.-Ing. Stefan Herbrechtsmeier

Heinz Nixdorf Institute
University of Paderborn 
System and Circuit Technology 
Fürstenallee 11
D-33102 Paderborn (Germany)

office : F0.415
phone  : + 49 5251 - 60 6342
fax    : + 49 5251 - 60 6351

mailto : hbmeier@xxxxxxxxxx

www    : http://wwwhni.upb.de/sct/mitarbeiter/hbmeier


--
video4linux-list mailing list
Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/video4linux-list