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Message-Id: <1529681621-9682-2-git-send-email-todor.tomov@linaro.org>
Date: Fri, 22 Jun 2018 18:33:10 +0300
From: Todor Tomov <todor.tomov@...aro.org>
To: mchehab@...nel.org, sakari.ailus@...ux.intel.com,
hans.verkuil@...co.com, laurent.pinchart+renesas@...asonboard.com,
linux-media@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 01/32] doc-rst: Add packed Bayer raw14 pixel formats
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
These formats are compressed 14-bit raw bayer formats with four different
pixel orders. They are similar to 10-bit variants. The formats added by
this patch are
V4L2_PIX_FMT_SBGGR14P
V4L2_PIX_FMT_SGBRG14P
V4L2_PIX_FMT_SGRBG14P
V4L2_PIX_FMT_SRGGB14P
Signed-off-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@...co.com>
---
Documentation/media/uapi/v4l/pixfmt-rgb.rst | 1 +
Documentation/media/uapi/v4l/pixfmt-srggb14p.rst | 127 +++++++++++++++++++++++
include/uapi/linux/videodev2.h | 5 +
3 files changed, 133 insertions(+)
create mode 100644 Documentation/media/uapi/v4l/pixfmt-srggb14p.rst
diff --git a/Documentation/media/uapi/v4l/pixfmt-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-rgb.rst
index cf2ef7d..1f9a7e3 100644
--- a/Documentation/media/uapi/v4l/pixfmt-rgb.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-rgb.rst
@@ -19,4 +19,5 @@ RGB Formats
pixfmt-srggb10-ipu3
pixfmt-srggb12
pixfmt-srggb12p
+ pixfmt-srggb14p
pixfmt-srggb16
diff --git a/Documentation/media/uapi/v4l/pixfmt-srggb14p.rst b/Documentation/media/uapi/v4l/pixfmt-srggb14p.rst
new file mode 100644
index 0000000..88d20c0
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-srggb14p.rst
@@ -0,0 +1,127 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-PIX-FMT-SRGGB14P:
+.. _v4l2-pix-fmt-sbggr14p:
+.. _v4l2-pix-fmt-sgbrg14p:
+.. _v4l2-pix-fmt-sgrbg14p:
+
+*******************************************************************************************************************************
+V4L2_PIX_FMT_SRGGB14P ('pRCC'), V4L2_PIX_FMT_SGRBG14P ('pgCC'), V4L2_PIX_FMT_SGBRG14P ('pGCC'), V4L2_PIX_FMT_SBGGR14P ('pBCC'),
+*******************************************************************************************************************************
+
+*man V4L2_PIX_FMT_SRGGB14P(2)*
+
+V4L2_PIX_FMT_SGRBG14P
+V4L2_PIX_FMT_SGBRG14P
+V4L2_PIX_FMT_SBGGR14P
+14-bit packed Bayer formats
+
+
+Description
+===========
+
+These four pixel formats are packed raw sRGB / Bayer formats with 14
+bits per colour. Every four consecutive samples are packed into seven
+bytes. Each of the first four bytes contain the eight high order bits
+of the pixels, and the three following bytes contains the six least
+significants bits of each pixel, in the same order.
+
+Each n-pixel row contains n/2 green samples and n/2 blue or red samples,
+with alternating green-red and green-blue rows. 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.
+
+
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 2 1 1 1 1 1 1 1
+
+
+ - .. row 1
+
+ - start + 0:
+
+ - B\ :sub:`00high`
+
+ - G\ :sub:`01high`
+
+ - B\ :sub:`02high`
+
+ - G\ :sub:`03high`
+
+ - G\ :sub:`01low bits 1--0`\ (bits 7--6)
+ B\ :sub:`00low bits 5--0`\ (bits 5--0)
+
+ - R\ :sub:`02low bits 3--0`\ (bits 7--4)
+ G\ :sub:`01low bits 5--2`\ (bits 3--0)
+
+ - G\ :sub:`03low bits 5--0`\ (bits 7--2)
+ R\ :sub:`02low bits 5--4`\ (bits 1--0)
+
+ - .. row 2
+
+ - start + 7:
+
+ - G\ :sub:`00high`
+
+ - R\ :sub:`01high`
+
+ - G\ :sub:`02high`
+
+ - R\ :sub:`03high`
+
+ - R\ :sub:`01low bits 1--0`\ (bits 7--6)
+ G\ :sub:`00low bits 5--0`\ (bits 5--0)
+
+ - G\ :sub:`02low bits 3--0`\ (bits 7--4)
+ R\ :sub:`01low bits 5--2`\ (bits 3--0)
+
+ - R\ :sub:`03low bits 5--0`\ (bits 7--2)
+ G\ :sub:`02low bits 5--4`\ (bits 1--0)
+
+ - .. row 3
+
+ - start + 14
+
+ - B\ :sub:`20high`
+
+ - G\ :sub:`21high`
+
+ - B\ :sub:`22high`
+
+ - G\ :sub:`23high`
+
+ - G\ :sub:`21low bits 1--0`\ (bits 7--6)
+ B\ :sub:`20low bits 5--0`\ (bits 5--0)
+
+ - R\ :sub:`22low bits 3--0`\ (bits 7--4)
+ G\ :sub:`21low bits 5--2`\ (bits 3--0)
+
+ - G\ :sub:`23low bits 5--0`\ (bits 7--2)
+ R\ :sub:`22low bits 5--4`\ (bits 1--0)
+
+ - .. row 4
+
+ - start + 21
+
+ - G\ :sub:`30high`
+
+ - R\ :sub:`31high`
+
+ - G\ :sub:`32high`
+
+ - R\ :sub:`33high`
+
+ - R\ :sub:`31low bits 1--0`\ (bits 7--6)
+ G\ :sub:`30low bits 5--0`\ (bits 5--0)
+
+ - G\ :sub:`32low bits 3--0`\ (bits 7--4)
+ R\ :sub:`31low bits 5--2`\ (bits 3--0)
+
+ - R\ :sub:`33low bits 5--0`\ (bits 7--2)
+ G\ :sub:`32low bits 5--4`\ (bits 1--0)
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 600877b..a15e03b 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -609,6 +609,11 @@ 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')
+ /* 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')
+#define V4L2_PIX_FMT_SGRBG14P v4l2_fourcc('p', 'g', 'E', 'E')
+#define V4L2_PIX_FMT_SRGGB14P v4l2_fourcc('p', 'R', 'E', 'E')
#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.. */
--
2.7.4
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