Hi Bhupesh, On Tuesday 01 March 2011 10:46:36 Bhupesh SHARMA wrote: > On Tuesday, March 01, 2011 3:11 PM Laurent Pinchart wrote: > > On Tuesday 01 March 2011 08:25:12 Bhupesh SHARMA wrote: > > > Hi Guennadi and Laurent, > > > > > > We are now evaluating another ST platform that supports a image > > > co-processor between the camera sensor and the camera host (SoC). > > > > > > The simple architecture diagram will be similar to one shown below > > > (for the sake of simplicity I show only a single sensor. At least > > > > > two sensors can be supported by the co-processor): > > [snip] (as the ascii-art looks more like a Picasso painting with the > > quote > > characters) > : > :( > > Despite my efforts to align it properly :) Try to configure your mailer to use spaces instead of tabs, or to make tabs 8 spaces wide. It should then look good. Replies will usually mess the diagrams up though. > > > The co-processor supports a video progressing logic engine capable of > > > performing a variety of operations like image recovery, cropping, > > > scaling, gamma correction etc. > > > > > > Now, evaluating the framework available for supporting for the camera > > > host, sensor and co-processor, I am wondering whether soc-camera(v4l2) > > > can support this complex design or something similar to the ISP driver > > > written for OMAP is the way forward. > > > > I think this can be a good candidate for the media controller API. It > > depends on how complex the co-processor is and what kind of processing it > > performs. I suppose there's no public datasheet. > > > > You will probably need to enhance subdev registration, as I'm not aware > > of any existing use case such as yours where a chain of subdevs unknown to > > the host controller is connected to the host controller input. > > Could you please give me some documentation links for media controller API. The media controller documentation is part of the V4L2 kernel documentation. You can find a compiled copy at http://www.ideasonboard.org/media/media/ The in-kernel API is documented in the kernel sources, in Documentation/media- framework.txt > Are there are reference drivers that I can use for my study? The OMAP3 ISP driver. > Unfortunately the data-sheet of the co-processor cannot be made public > as of yet. Can you publish a block diagram of the co-processor internals ? -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
