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authorSakari Ailus <sakari.ailus@linux.intel.com>2016-06-27 10:46:16 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-11-23 20:04:22 -0200
commitb9a4b13c770a84599dc706b78cd70ad5761fc30b (patch)
tree97a2195eb2aa152557dd334255d028984e969893
parent59eba2d1ec0272ea9cb472b5805e179242df226d (diff)
[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>
-rw-r--r--Documentation/media/uapi/v4l/pixfmt-rgb.rst2
-rw-r--r--Documentation/media/uapi/v4l/pixfmt-srggb16.rst (renamed from Documentation/media/uapi/v4l/pixfmt-sbggr16.rst)25
-rw-r--r--drivers/media/v4l2-core/v4l2-ioctl.c5
-rw-r--r--include/uapi/linux/videodev2.h3
4 files changed, 24 insertions, 11 deletions
diff --git a/Documentation/media/uapi/v4l/pixfmt-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-rgb.rst
index 9cc980882e80..b0f35136021e 100644
--- a/Documentation/media/uapi/v4l/pixfmt-rgb.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-rgb.rst
@@ -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
diff --git a/Documentation/media/uapi/v4l/pixfmt-sbggr16.rst b/Documentation/media/uapi/v4l/pixfmt-srggb16.rst
index 6f7f327db85c..06facc9cd539 100644
--- a/Documentation/media/uapi/v4l/pixfmt-sbggr16.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-srggb16.rst
@@ -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.
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 181381d1dc77..61d2d65318c5 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -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;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index d3f613e2c54a..46e8a2e369f9 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -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')