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Subject: media: v4l: Add V4L2-PIX-FMT-Y12P format
Author: Jean-Michel Hautbois <jeanmichel.hautb...@ideasonboard.com>
Date: Wed Apr 24 18:35:37 2024 +0300
This is a packed grey-scale image format with a depth of 12 bits per
pixel. Two consecutive pixels are packed into 3 bytes. The first 2 bytes
contain the 8 high order bits of the pixels, and the 3rd byte contains
the 4 least significants bits of each pixel, in the same order.
Add the entry in userspace API, and document it.
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautb...@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst | 11 +++++++++++
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/uapi/linux/videodev2.h | 1 +
3 files changed, 13 insertions(+)
---
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
index cf8e4dfbfbd4..a650ceda7cdb 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
@@ -114,6 +114,17 @@ are often referred to as greyscale formats.
- ...
- ...
+ * .. _V4L2-PIX-FMT-Y12P:
+
+ - ``V4L2_PIX_FMT_Y12P``
+ - 'Y12P'
+
+ - Y'\ :sub:`0`\ [11:4]
+ - Y'\ :sub:`1`\ [11:4]
+ - Y'\ :sub:`1`\ [3:0] Y'\ :sub:`0`\ [3:0]
+ - ...
+ - ...
+
* .. _V4L2-PIX-FMT-Y14:
- ``V4L2_PIX_FMT_Y14``
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c
b/drivers/media/v4l2-core/v4l2-ioctl.c
index aab671fae45b..94fe2a1d13cd 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1321,6 +1321,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
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_IPU3_Y10: descr = "10-bit greyscale (IPU3
Packed)"; break;
+ case V4L2_PIX_FMT_Y12P: descr = "12-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;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index d944db7ae1ed..760fb8ed7f69 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -599,6 +599,7 @@ struct v4l2_pix_format {
#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 */
#define V4L2_PIX_FMT_IPU3_Y10 v4l2_fourcc('i', 'p', '3', 'y') /* IPU3
packed 10-bit greyscale */
+#define V4L2_PIX_FMT_Y12P v4l2_fourcc('Y', '1', '2', 'P') /* 12 Greyscale,
MIPI RAW12 packed */
/* Palette formats */
#define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit
palette */
