Hi Edgar, I've just been notified that I had forgotten about this patch series :-S Mea culpa. On Mon, Jul 08, 2019 at 08:02:25AM +0200, Edgar Thier wrote: > These formats are compressed 12-bit raw bayer formats with four different > pixel orders. The pixel follow one another without any padding, s/pixel follow/pixels follow/ > thus are packed in a 'linear' fashion. > > Signed-off-by: Edgar Thier <info@xxxxxxxxxxxxxx> > --- > Documentation/media/uapi/v4l/pixfmt-rgb.rst | 1 + > .../media/uapi/v4l/pixfmt-srggb12lp.rst | 76 +++++++++++++++++++ > drivers/media/v4l2-core/v4l2-ioctl.c | 4 + > include/uapi/linux/videodev2.h | 7 ++ > 4 files changed, 88 insertions(+) > create mode 100644 Documentation/media/uapi/v4l/pixfmt-srggb12lp.rst > > diff --git a/Documentation/media/uapi/v4l/pixfmt-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-rgb.rst > index 48ab80024835..9efa500c02dc 100644 > --- a/Documentation/media/uapi/v4l/pixfmt-rgb.rst > +++ b/Documentation/media/uapi/v4l/pixfmt-rgb.rst > @@ -26,5 +26,6 @@ RGB Formats > pixfmt-srggb10-ipu3 > pixfmt-srggb12 > pixfmt-srggb12p > + pixfmt-srggb12lp I'd move this above srggb12p to order them alphabetically. > pixfmt-srggb14p > pixfmt-srggb16 > diff --git a/Documentation/media/uapi/v4l/pixfmt-srggb12lp.rst b/Documentation/media/uapi/v4l/pixfmt-srggb12lp.rst > new file mode 100644 > index 000000000000..08d73cfdc42d > --- /dev/null > +++ b/Documentation/media/uapi/v4l/pixfmt-srggb12lp.rst > @@ -0,0 +1,76 @@ > +.. -*- coding: utf-8; mode: rst -*- > + > +.. _v4l2-pix-fmt-sbggr12lp: > +.. _v4l2-pix-fmt-sgbrg12lp: > +.. _v4l2-pix-fmt-sgrbg12lp: > +.. _v4l2-pix-fmt-srggb12lp: > + > +********************************************************************************************************************************** > +V4L2_PIX_FMT_SBGGR12LP ('BGCp'), V4L2_PIX_FMT_SGBRG12LP ('GBCp'), V4L2_PIX_FMT_SGRBG12LP ('GRCp'), V4L2_PIX_FMT_SRGGB12LP ('RGCp') > +********************************************************************************************************************************** > + > +12-bit Bayer formats This should be 12-bit linear packed Bayer formats ---------------------------------- > + > +Description > +=========== > + > +These packed Bayer formats are used by industrial cameras, often in conjunction > +with UsbVision (see https://www.visiononline.org/userAssets/aiaUploads/file/USB3_Vision_Specification_v1-0-1.pdf). > + > +The formats are equal to the Genicam PFNC Bayer12p formats > +(see https://www.emva.org/wp-content/uploads/GenICam_PFNC_2_3.pdf). > + > +They are raw sRGB / Bayer formats with 12 bits > +per sample with 3 bytes for every 2 pixels. > + > +The format is little endian. I'd drop this line, as there's no real endianess here, is there ? With those small changes, Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> There's no need to resubmit this patch if you agree with the proposed changes, I'll apply them locally. > + > +Below is an example of a small image in V4L2_PIX_FMT_SBGGR12LP format. > + > +**Byte Order.** > +Each cell is one byte. > + > +.. tabularcolumns:: |p{0.8cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}| > + > +.. flat-table:: > + > + * - start + 0: > + - B\ :sub:`00low` > + - G\ :sub:`01low`\ (bits 7--4) > + B\ :sub:`00high`\ (bits 0--3) > + - G\ :sub:`01high`\ > + - B\ :sub:`02low` > + - G\ :sub:`03low`\ (bits 7--4) > + B\ :sub:`02high`\ (bits 0--3) > + - G\ :sub:`03high`\ > + > + * - start + 6: > + - G\ :sub:`10low` > + - R\ :sub:`11low`\ (bits 7--4) > + G\ :sub:`10high`\ (bits 0--3) > + - R\ :sub:`11high` > + - G\ :sub:`12low` > + - R\ :sub:`13low`\ (bits 7--4) > + G\ :sub:`12high`\ (bits 0--3) > + - R\ :sub:`13high` > + > + * - start + 12: > + - B\ :sub:`20low` > + - G\ :sub:`21low`\ (bits 7--4) > + B\ :sub:`20high`\ (bits 0--3) > + - G\ :sub:`21high` > + - B\ :sub:`22low` > + - G\ :sub:`21low`\ (bits 7--4) > + B\ :sub:`22high`\ (bits 0--3) > + - G\ :sub:`21high` > + > + * - start + 18: > + - G\ :sub:`30low` > + - R\ :sub:`31low`\ (bits 7--4) > + G\ :sub:`30high`\ (bits 0--3) > + - R\ :sub:`31high` > + - G\ :sub:`32low` > + - R\ :sub:`33low`\ (bits 7--4) > + G\ :sub:`32high`\ (bits 0--3) > + - R\ :sub:`33high` > + > diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c > index ac87c3e37280..0cef797e4989 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1275,6 +1275,10 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) > case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break; > case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break; > case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break; > + case V4L2_PIX_FMT_SBGGR12LP: descr = "12-bit Bayer BGGR Linear Packed"; break; > + case V4L2_PIX_FMT_SGBRG12LP: descr = "12-bit Bayer GBRG Linear Packed"; break; > + case V4L2_PIX_FMT_SGRBG12LP: descr = "12-bit Bayer GRBG Linear Packed"; break; > + case V4L2_PIX_FMT_SRGGB12LP: descr = "12-bit Bayer RGGB Linear Packed"; break; > case V4L2_PIX_FMT_SBGGR12P: descr = "12-bit Bayer BGBG/GRGR Packed"; break; > case V4L2_PIX_FMT_SGBRG12P: descr = "12-bit Bayer GBGB/RGRG Packed"; break; > case V4L2_PIX_FMT_SGRBG12P: descr = "12-bit Bayer GRGR/BGBG Packed"; break; > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h > index 1050a75fb7ef..adee353d5913 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -646,6 +646,13 @@ struct v4l2_pix_format { > #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB.. RGRG.. */ > #define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR.. BGBG.. */ > #define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG.. GBGB.. */ > + > + /* 12bit raw bayer linearly packed, 6 bytes for every 4 pixels */ > +#define V4L2_PIX_FMT_SBGGR12LP v4l2_fourcc('B', 'G', 'C', 'p') > +#define V4L2_PIX_FMT_SGBRG12LP v4l2_fourcc('G', 'B', 'C', 'p') > +#define V4L2_PIX_FMT_SGRBG12LP v4l2_fourcc('G', 'R', 'C', 'p') > +#define V4L2_PIX_FMT_SRGGB12LP v4l2_fourcc('R', 'G', 'C', 'p') > + > /* 12bit raw bayer packed, 6 bytes for every 4 pixels */ > #define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C') > #define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C') -- Regards, Laurent Pinchart