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[media] v4l: Add 16-bit raw bayer pixel formats 

The formats added by this patch are:

	V4L2_PIX_FMT_SBGGR16
	V4L2_PIX_FMT_SGBRG16
	V4L2_PIX_FMT_SGRBG16

V4L2_PIX_FMT_SRGGB16 already existed before the patch. Rework the
documentation to match that of the other sample depths.

Also align the description of V4L2_PIX_FMT_SRGGB16 to match with other
similar formats.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
hifive-unleashed-5.1
Sakari Ailus 2016-06-27 10:46:16 -03:00 committed by Mauro Carvalho Chehab
parent 59eba2d1ec
commit b9a4b13c77
4 changed files with 24 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/media/uapi/v4l/pixfmt-rgb.rst
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@ -12,9 +12,9 @@ RGB Formats
pixfmt-packed-rgb
pixfmt-srggb8
pixfmt-sbggr16
pixfmt-srggb10
pixfmt-srggb10p
pixfmt-srggb10alaw8
pixfmt-srggb10dpcm8
pixfmt-srggb12
pixfmt-srggb16

25
Documentation/media/uapi/v4l/pixfmt-sbggr16.rst → Documentation/media/uapi/v4l/pixfmt-srggb16.rst
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@ -1,21 +1,28 @@
.. -*- coding: utf-8; mode: rst -*-
.. _V4L2-PIX-FMT-SBGGR16:
.. _V4L2-PIX-FMT-SRGGB16:
.. _v4l2-pix-fmt-sbggr16:
.. _v4l2-pix-fmt-sgbrg16:
.. _v4l2-pix-fmt-sgrbg16:
*****************************
V4L2_PIX_FMT_SBGGR16 ('BYR2')
*****************************
Bayer RGB format
***************************************************************************************************************************
V4L2_PIX_FMT_SRGGB16 ('RG16'), V4L2_PIX_FMT_SGRBG16 ('GR16'), V4L2_PIX_FMT_SGBRG16 ('GB16'), V4L2_PIX_FMT_SBGGR16 ('BYR2'),
***************************************************************************************************************************
16-bit Bayer formats
Description
===========
This format is similar to
:ref:`V4L2_PIX_FMT_SBGGR8 <V4L2-PIX-FMT-SBGGR8>`, except each pixel
has a depth of 16 bits. The least significant byte is stored at lower
memory addresses (little-endian).
These four pixel formats are raw sRGB / Bayer formats with 16 bits per
sample. Each sample is stored in a 16-bit word. 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 one of these formats:
**Byte Order.**
Each cell is one byte.

5
drivers/media/v4l2-core/v4l2-ioctl.c
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@ -1191,7 +1191,10 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR (Exp.)"; break;
case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR"; break;
case V4L2_PIX_FMT_SGBRG16: descr = "16-bit Bayer GBGB/RGRG"; break;
case V4L2_PIX_FMT_SGRBG16: descr = "16-bit Bayer GRGR/BGBG"; break;
case V4L2_PIX_FMT_SRGGB16: descr = "16-bit Bayer RGRG/GBGB"; break;
case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;

3
include/uapi/linux/videodev2.h
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@ -605,6 +605,9 @@ struct v4l2_pix_format {
#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.. */
#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16 GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG16 v4l2_fourcc('G', 'R', '1', '6') /* 16 GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB16 v4l2_fourcc('R', 'G', '1', '6') /* 16 RGRG.. GBGB.. */
/* HSV formats */
#define V4L2_PIX_FMT_HSV24 v4l2_fourcc('H', 'S', 'V', '3')