NT8 is 8-bit tiled nv12 format used by amphion decoder.
NT10 is 10-bit tiled format used by amphion decoder.
The tile size is 8x128
Signed-off-by: Ming Qian <ming.qian@xxxxxxx>
Signed-off-by: Shijie Qin <shijie.qin@xxxxxxx>
Signed-off-by: Zhou Peng <eagle.zhou@xxxxxxx>
---
.../userspace-api/media/v4l/pixfmt-yuv-planar.rst | 15 +++++++++++++++
drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++
include/uapi/linux/videodev2.h | 4 ++++
3 files changed, 21 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
index 090c091affd2..ce3419d95691 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
@@ -254,6 +254,8 @@ of the luma plane.
.. _V4L2-PIX-FMT-NV12MT:
.. _V4L2-PIX-FMT-NV12MT-16X16:
+.. _V4L2_PIX_FMT_NV12_8L128:
+.. _V4L2_PIX_FMT_NV12_10BE_8L128:
NV12MT and MV12MT_16X16
-----------------------
@@ -276,6 +278,19 @@ If the vertical resolution is an odd number of macroblocks, the last row of
macroblocks is stored in linear order. The layouts of the luma and chroma
planes are identical.
+``V4L2_PIX_FMT_NV12_8L128`` stores pixel in 2D 8x128 tiles, and stores
+tiles linearly in memory. The line stride must be aligned to a multiple of 256.
+The image height must be aligned to a multiple of 128. The layouts of the
+luma and chroma planes are identical.
+
+``V4L2_PIX_FMT_NV12_10BE_8L128`` stores 10 bits pixel in 2D 8x128 tiles,
+and stores tiles linearly in memory. the data is arranged at the big end.
+The line stride must be aligned to a multiple of 256 bytes. The image
+height must be aligned to a multiple of 128. The layouts of the luma
+and chroma planes are identical. Note the tile size is 8bytes multiplied
+by 128 bytes, it means that the low bits and high bits of one pixel
+may be in differnt tiles.
+
.. _nv12mt:
.. kernel-figure:: nv12mt.svg
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 05d5db3d85e5..22f97a1cfbeb 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1367,6 +1367,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_META_FMT_VIVID: descr = "Vivid Metadata"; break;
case V4L2_META_FMT_RK_ISP1_PARAMS: descr = "Rockchip ISP1 3A Parameters"; break;
case V4L2_META_FMT_RK_ISP1_STAT_3A: descr = "Rockchip ISP1 3A Statistics"; break;
+ case V4L2_PIX_FMT_NV12_8L128: descr = "Y/CbCr 4:2:0 (8x128 Linear)"; break;
+ case V4L2_PIX_FMT_NV12_10BE_8L128: descr = "Y/CbCr 4:2:0 10BE(8x128 Linear)"; break;
default:
/* Compressed formats */
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 9260791b8438..167c0e40ec06 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -627,6 +627,10 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24 YUV444 planar */
#define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24 YVU444 planar */
+/* Tiled YUV formats */
+#define V4L2_PIX_FMT_NV12_8L128 v4l2_fourcc('N', 'A', '1', '2') /* Y/CbCr 4:2:0 8x128 tiles */
+#define V4L2_PIX_FMT_NV12_10BE_8L128 v4l2_fourcc('N', 'T', '1', '2') /* Y/CbCr 4:2:0 10-bit 8x128 tiles */
+
/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */
--
2.32.0
