[PATCH v2 03/13] media: Add NV12_10LE40_4L4 pixel format

From: Benjamin Gaignard
Date: Tue Jan 03 2023 - 12:04:40 EST


NV12_10LE40_4L4 is the 10-bits per component version of
NV12_4L4 pixel format.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@xxxxxxxxxxxxx>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
---
Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst | 4 ++++
drivers/media/v4l2-core/v4l2-common.c | 1 +
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/uapi/linux/videodev2.h | 1 +
4 files changed, 7 insertions(+)

diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
index f1d5bb7b806d..8805213a75f8 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
@@ -270,6 +270,7 @@ of the luma plane.
.. _V4L2-PIX-FMT-NV12MT:
.. _V4L2-PIX-FMT-NV12MT-16X16:
.. _V4L2-PIX-FMT-NV12-4L4:
+.. _V4L2-PIX-FMT-NV12-10LE40-4L4:
.. _V4L2-PIX-FMT-NV12-16L16:
.. _V4L2-PIX-FMT-NV12-32L32:
.. _V4L2-PIX-FMT-NV12M-8L128:
@@ -306,6 +307,9 @@ tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 4. The layouts of the luma and chroma planes are
identical.

+``V4L2_PIX_FMT_NV12_10LE40_4L4`` is similar to ``V4L2_PIX_FMT_NV12_4L4``
+and stores 10 bits pixels in 4x4 tiles.
+
``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 16. The layouts of the luma and chroma planes are
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 9cb0895dea1c..7f46c45982d6 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -278,6 +278,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)

/* Tiled YUV formats */
{ .format = V4L2_PIX_FMT_NV12_4L4, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 2, .vdiv = 2 },
+ { .format = V4L2_PIX_FMT_NV12_10LE40_4L4, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 5, 10, 0, 0 }, .bpp_div = { 4, 4, 1, 1 }, .hdiv = 2, .vdiv = 2 },
{ .format = V4L2_PIX_FMT_P010_4L4, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 2, 4, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 2, .vdiv = 2 },

/* YUV planar formats, non contiguous variant */
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 1fd9b0041554..ea8afc8c9250 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1351,6 +1351,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_NV12_4L4: descr = "Y/UV 4:2:0 (4x4 Linear)"; break;
case V4L2_PIX_FMT_NV12_16L16: descr = "Y/UV 4:2:0 (16x16 Linear)"; break;
case V4L2_PIX_FMT_NV12_32L32: descr = "Y/UV 4:2:0 (32x32 Linear)"; break;
+ case V4L2_PIX_FMT_NV12_10LE40_4L4: descr = "10-bit YUV 4:2:0 (4x4 Linear)"; break;
case V4L2_PIX_FMT_P010_4L4: descr = "10-bit Y/UV 4:2:0 (4x4 Linear)"; break;
case V4L2_PIX_FMT_NV12M: descr = "Y/UV 4:2:0 (N-C)"; break;
case V4L2_PIX_FMT_NV21M: descr = "Y/VU 4:2:0 (N-C)"; break;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 3dec002cb420..f034cf3a6e6d 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -653,6 +653,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_NV12_4L4 v4l2_fourcc('V', 'T', '1', '2') /* 12 Y/CbCr 4:2:0 4x4 tiles */
#define V4L2_PIX_FMT_NV12_16L16 v4l2_fourcc('H', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 16x16 tiles */
#define V4L2_PIX_FMT_NV12_32L32 v4l2_fourcc('S', 'T', '1', '2') /* 12 Y/CbCr 4:2:0 32x32 tiles */
+#define V4L2_PIX_FMT_NV12_10LE40_4L4 v4l2_fourcc('V', 'T', '1', '5')
#define V4L2_PIX_FMT_P010_4L4 v4l2_fourcc('T', '0', '1', '0') /* 12 Y/CbCr 4:2:0 10-bit 4x4 macroblocks */
#define V4L2_PIX_FMT_NV12_8L128 v4l2_fourcc('A', 'T', '1', '2') /* Y/CbCr 4:2:0 8x128 tiles */
#define V4L2_PIX_FMT_NV12_10BE_8L128 v4l2_fourcc_be('A', 'X', '1', '2') /* Y/CbCr 4:2:0 10-bit 8x128 tiles */
--
2.34.1