diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0260-media-Add-a-pixel-format-for-MIPI-packed-12bit-luma-.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0260-media-Add-a-pixel-format-for-MIPI-packed-12bit-luma-.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0260-media-Add-a-pixel-format-for-MIPI-packed-12bit-luma-.patch b/target/linux/bcm27xx/patches-5.15/950-0260-media-Add-a-pixel-format-for-MIPI-packed-12bit-luma-.patch new file mode 100644 index 0000000000..5aea1d7b3a --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0260-media-Add-a-pixel-format-for-MIPI-packed-12bit-luma-.patch @@ -0,0 +1,95 @@ +From 30821c8c3d67b8450e9771bb864f737f6e68bd4c Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Thu, 7 May 2020 16:59:03 +0100 +Subject: [PATCH] media: Add a pixel format for MIPI packed 12bit luma + only. + +This is the format used by monochrome 12bit image sensors. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + .../userspace-api/media/v4l/pixfmt-y12p.rst | 45 +++++++++++++++++++ + .../userspace-api/media/v4l/yuv-formats.rst | 1 + + drivers/media/v4l2-core/v4l2-ioctl.c | 1 + + include/uapi/linux/videodev2.h | 1 + + 4 files changed, 48 insertions(+) + create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-y12p.rst + +--- /dev/null ++++ b/Documentation/userspace-api/media/v4l/pixfmt-y12p.rst +@@ -0,0 +1,45 @@ ++.. Permission is granted to copy, distribute and/or modify this ++.. document under the terms of the GNU Free Documentation License, ++.. Version 1.1 or any later version published by the Free Software ++.. Foundation, with no Invariant Sections, no Front-Cover Texts ++.. and no Back-Cover Texts. A copy of the license is included at ++.. Documentation/media/uapi/fdl-appendix.rst. ++.. ++.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections ++ ++.. _V4L2-PIX-FMT-Y12P: ++ ++****************************** ++V4L2_PIX_FMT_Y12P ('Y12P') ++****************************** ++ ++Grey-scale image as a MIPI RAW12 packed array ++ ++ ++Description ++=========== ++ ++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. ++ ++**Byte Order.** ++Each cell is one byte. ++ ++.. tabularcolumns:: |p{2.2cm}|p{1.2cm}|p{1.2cm}|p{3.1cm}| ++ ++ ++.. flat-table:: ++ :header-rows: 0 ++ :stub-columns: 0 ++ :widths: 2 1 1 1 ++ ++ ++ - - start + 0: ++ - Y'\ :sub:`00high` ++ - Y'\ :sub:`01high` ++ - Y'\ :sub:`01low`\ (bits 7--4) ++ ++ Y'\ :sub:`00low`\ (bits 3--0) ++ +--- a/Documentation/userspace-api/media/v4l/yuv-formats.rst ++++ b/Documentation/userspace-api/media/v4l/yuv-formats.rst +@@ -267,6 +267,7 @@ image. + pixfmt-packed-yuv + pixfmt-yuv-planar + pixfmt-yuv-luma ++ pixfmt-y12p + pixfmt-y8i + pixfmt-y12i + pixfmt-uv8 +--- a/drivers/media/v4l2-core/v4l2-ioctl.c ++++ b/drivers/media/v4l2-core/v4l2-ioctl.c +@@ -1265,6 +1265,7 @@ static void v4l_fill_fmtdesc(struct v4l2 + 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_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; +--- a/include/uapi/linux/videodev2.h ++++ b/include/uapi/linux/videodev2.h +@@ -574,6 +574,7 @@ 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 */ ++#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 */ |