On 10/29/2010 7:06 AM, Bastian Hecht wrote:
Hello Laurant,
sorry I am flooding a bit here, but now I reached a point where I am
really stuck.
In the get_fmt_pad I set the following format
*format = mt9p031->format;
that is defined as
mt9p031->format.code = V4L2_MBUS_FMT_SGRBG10_1X10;
mt9p031->format.width = MT9P031_MAX_WIDTH;
mt9p031->format.height = MT9P031_MAX_HEIGHT;
mt9p031->format.field = V4L2_FIELD_NONE;
mt9p031->format.colorspace = V4L2_COLORSPACE_SRGB;
I found the different formats in /include/linux/v4l2-mediabus.h. I
have 12 data bit channels, but there is no enum for that (like
V4L2_MBUS_FMT_SGRBG10_1X12).
I am the first guy needing a 12 bit-bus?
Most of the ISP can't handle more than 10-bit input - unless you're
streaming raw sensor data straight to memory, you'll have to use the
bridge lane shifter to decimate the input.
In the new framework, I don't know how that's done, unfortunately.
Also, technically, the mt9p031 output colorspace is not sRGB, although
I'm not sure how close it is. It's its own sensor-specific space,
determined by the color filters on it, and you'll want to calibrate for
it at some point.
Good luck,
Eino-Ville Talvala
Stanford University
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