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media: v4l: Add new 10-bit packed grayscale format 

The new format will be called V4L2_PIX_FMT_Y10P.
It is similar to the V4L2_PIX_FMT_SBGGR10P family formats
but V4L2_PIX_FMT_Y10P is a grayscale format.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Todor Tomov 2018-07-25 12:38:12 -04:00 committed by Mauro Carvalho Chehab
parent 451af0bf04
commit 6e15bec49f
4 changed files with 36 additions and 0 deletions
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33
Documentation/media/uapi/v4l/pixfmt-y10p.rst Normal file
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@ -0,0 +1,33 @@
.. -*- coding: utf-8; mode: rst -*-
.. _V4L2-PIX-FMT-Y10P:
******************************
V4L2_PIX_FMT_Y10P ('Y10P')
******************************
Grey-scale image as a MIPI RAW10 packed array
Description
===========
This is a packed grey-scale image format with a depth of 10 bits per
pixel. Every four consecutive pixels are packed into 5 bytes. Each of
the first 4 bytes contain the 8 high order bits of the pixels, and
the 5th byte contains the 2 least significants bits of each pixel,
in the same order.
**Bit-packed representation.**
.. flat-table::
:header-rows: 0
:stub-columns: 0
:widths: 8 8 8 8 64
* - Y'\ :sub:`00[9:2]`
- Y'\ :sub:`01[9:2]`
- Y'\ :sub:`02[9:2]`
- Y'\ :sub:`03[9:2]`
- Y'\ :sub:`03[1:0]`\ (bits 7--6) Y'\ :sub:`02[1:0]`\ (bits 5--4)
Y'\ :sub:`01[1:0]`\ (bits 3--2) Y'\ :sub:`00[1:0]`\ (bits 1--0)

1
Documentation/media/uapi/v4l/yuv-formats.rst
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@ -29,6 +29,7 @@ to brightness information.
pixfmt-y10
pixfmt-y12
pixfmt-y10b
pixfmt-y10p
pixfmt-y16
pixfmt-y16-be
pixfmt-y8i

1
drivers/media/v4l2-core/v4l2-ioctl.c
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@ -1184,6 +1184,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
case V4L2_PIX_FMT_Y10P: descr = "10-bit Greyscale (MIPI Packed)"; break;
case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;

1
include/uapi/linux/videodev2.h
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@ -522,6 +522,7 @@ struct v4l2_pix_format {
/* Grey bit-packed formats */
#define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */
#define V4L2_PIX_FMT_Y10P v4l2_fourcc('Y', '1', '0', 'P') /* 10 Greyscale, MIPI RAW10 packed */
/* Palette formats */
#define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */