From: Sakari Ailus Date: Mon, 24 Feb 2020 17:52:20 +0000 (+0100) Subject: media: v4l: Add 14-bit raw bayer pixel formats X-Git-Tag: accepted/tizen/unified/20200709.164653~326 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a353d7aa57579133017c6029a4f8213b05d1a89a;p=platform%2Fkernel%2Flinux-rpi.git media: v4l: Add 14-bit raw bayer pixel formats Commit d12127ed0e18192491c2508caae45bb19c2f8fdd upstream. The formats added by this patch are: V4L2_PIX_FMT_SBGGR14 V4L2_PIX_FMT_SGBRG14 V4L2_PIX_FMT_SGRBG14 V4L2_PIX_FMT_SRGGB14 Signed-off-by: Jouni Ukkonen Signed-off-by: Sakari Ailus [dg@emlix.com: rebased onto current media_tree] Signed-off-by: Daniel Glöckner Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/Documentation/media/uapi/v4l/pixfmt-bayer.rst b/Documentation/media/uapi/v4l/pixfmt-bayer.rst index cfa2f4e..807ab34 100644 --- a/Documentation/media/uapi/v4l/pixfmt-bayer.rst +++ b/Documentation/media/uapi/v4l/pixfmt-bayer.rst @@ -34,5 +34,6 @@ orders. See also `the Wikipedia article on Bayer filter pixfmt-srggb10-ipu3 pixfmt-srggb12 pixfmt-srggb12p + pixfmt-srggb14 pixfmt-srggb14p pixfmt-srggb16 diff --git a/Documentation/media/uapi/v4l/pixfmt-srggb14.rst b/Documentation/media/uapi/v4l/pixfmt-srggb14.rst new file mode 100644 index 0000000..3420d4d1 --- /dev/null +++ b/Documentation/media/uapi/v4l/pixfmt-srggb14.rst @@ -0,0 +1,82 @@ +.. Permission is granted to copy, distribute and/or modify this +.. document under the terms of the GNU Free Documentation License, +.. Version 1.1 or any later version published by the Free Software +.. Foundation, with no Invariant Sections, no Front-Cover Texts +.. and no Back-Cover Texts. A copy of the license is included at +.. Documentation/media/uapi/fdl-appendix.rst. +.. +.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections + +.. _V4L2-PIX-FMT-SRGGB14: +.. _v4l2-pix-fmt-sbggr14: +.. _v4l2-pix-fmt-sgbrg14: +.. _v4l2-pix-fmt-sgrbg14: + + +*************************************************************************************************************************** +V4L2_PIX_FMT_SRGGB14 ('RG14'), V4L2_PIX_FMT_SGRBG14 ('GR14'), V4L2_PIX_FMT_SGBRG14 ('GB14'), V4L2_PIX_FMT_SBGGR14 ('BG14'), +*************************************************************************************************************************** + + +14-bit Bayer formats expanded to 16 bits + + +Description +=========== + +These four pixel formats are raw sRGB / Bayer formats with 14 bits per +colour. Each sample is stored in a 16-bit word, with two unused high +bits filled with zeros. Each n-pixel row contains n/2 green samples +and n/2 blue or red samples, with alternating red and blue rows. Bytes +are stored in memory in little endian order. They are conventionally +described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an +example of a small V4L2_PIX_FMT_SBGGR14 image: + +**Byte Order.** +Each cell is one byte, the two most significant bits in the high bytes are +zero. + + + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 2 1 1 1 1 1 1 1 1 + + + * - start + 0: + - B\ :sub:`00low` + - B\ :sub:`00high` + - G\ :sub:`01low` + - G\ :sub:`01high` + - B\ :sub:`02low` + - B\ :sub:`02high` + - G\ :sub:`03low` + - G\ :sub:`03high` + * - start + 8: + - G\ :sub:`10low` + - G\ :sub:`10high` + - R\ :sub:`11low` + - R\ :sub:`11high` + - G\ :sub:`12low` + - G\ :sub:`12high` + - R\ :sub:`13low` + - R\ :sub:`13high` + * - start + 16: + - B\ :sub:`20low` + - B\ :sub:`20high` + - G\ :sub:`21low` + - G\ :sub:`21high` + - B\ :sub:`22low` + - B\ :sub:`22high` + - G\ :sub:`23low` + - G\ :sub:`23high` + * - start + 24: + - G\ :sub:`30low` + - G\ :sub:`30high` + - R\ :sub:`31low` + - R\ :sub:`31high` + - G\ :sub:`32low` + - G\ :sub:`32high` + - R\ :sub:`33low` + - R\ :sub:`33high` diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 31d3f50..fddc536 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1298,6 +1298,10 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) 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; case V4L2_PIX_FMT_SRGGB12P: descr = "12-bit Bayer RGRG/GBGB Packed"; break; + case V4L2_PIX_FMT_SBGGR14: descr = "14-bit Bayer BGBG/GRGR"; break; + case V4L2_PIX_FMT_SGBRG14: descr = "14-bit Bayer GBGB/RGRG"; break; + case V4L2_PIX_FMT_SGRBG14: descr = "14-bit Bayer GRGR/BGBG"; break; + case V4L2_PIX_FMT_SRGGB14: descr = "14-bit Bayer RGRG/GBGB"; break; case V4L2_PIX_FMT_SBGGR14P: descr = "14-bit Bayer BGBG/GRGR Packed"; break; case V4L2_PIX_FMT_SGBRG14P: descr = "14-bit Bayer GBGB/RGRG Packed"; break; case V4L2_PIX_FMT_SGRBG14P: descr = "14-bit Bayer GRGR/BGBG Packed"; break; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 5b33ba2..4da08fe3 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -667,6 +667,10 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C') #define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C') #define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C') +#define V4L2_PIX_FMT_SBGGR14 v4l2_fourcc('B', 'G', '1', '4') /* 14 BGBG.. GRGR.. */ +#define V4L2_PIX_FMT_SGBRG14 v4l2_fourcc('G', 'B', '1', '4') /* 14 GBGB.. RGRG.. */ +#define V4L2_PIX_FMT_SGRBG14 v4l2_fourcc('G', 'R', '1', '4') /* 14 GRGR.. BGBG.. */ +#define V4L2_PIX_FMT_SRGGB14 v4l2_fourcc('R', 'G', '1', '4') /* 14 RGRG.. GBGB.. */ /* 14bit raw bayer packed, 7 bytes for every 4 pixels */ #define V4L2_PIX_FMT_SBGGR14P v4l2_fourcc('p', 'B', 'E', 'E') #define V4L2_PIX_FMT_SGBRG14P v4l2_fourcc('p', 'G', 'E', 'E')