media: Add 2-10-10-10 RGB formats

Add RGBX1010102, RGBA1010102 and ARGB2101010 formats. Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
mariux64 · Jan 20, 2023 · 8d0e3fc · 8d0e3fc
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diff --git a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
@@ -763,6 +763,200 @@ nomenclature that instead use the order of components as seen in a 24- or
     \normalsize
 
 
+10 Bits Per Component
+=====================
+
+These formats store a 30-bit RGB triplet with an optional 2 bit alpha in four
+bytes. They are named based on the order of the RGB components as seen in a
+32-bit word, which is then stored in memory in little endian byte order
+(unless otherwise noted by the presence of bit 31 in the 4CC value), and on the
+number of bits for each component.
+
+.. raw:: latex
+
+    \begingroup
+    \tiny
+    \setlength{\tabcolsep}{2pt}
+
+.. tabularcolumns:: |p{2.8cm}|p{2.0cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|
+
+
+.. flat-table:: RGB Formats 10 Bits Per Color Component
+    :header-rows:  2
+    :stub-columns: 0
+
+    * - Identifier
+      - Code
+      - :cspan:`7` Byte 0 in memory
+      - :cspan:`7` Byte 1
+      - :cspan:`7` Byte 2
+      - :cspan:`7` Byte 3
+    * -
+      -
+      - 7
+      - 6
+      - 5
+      - 4
+      - 3
+      - 2
+      - 1
+      - 0
+
+      - 7
+      - 6
+      - 5
+      - 4
+      - 3
+      - 2
+      - 1
+      - 0
+
+      - 7
+      - 6
+      - 5
+      - 4
+      - 3
+      - 2
+      - 1
+      - 0
+
+      - 7
+      - 6
+      - 5
+      - 4
+      - 3
+      - 2
+      - 1
+      - 0
+    * .. _V4L2-PIX-FMT-RGBX1010102:
+
+      - ``V4L2_PIX_FMT_RGBX1010102``
+      - 'RX30'
+
+      - b\ :sub:`5`
+      - b\ :sub:`4`
+      - b\ :sub:`3`
+      - b\ :sub:`2`
+      - b\ :sub:`1`
+      - b\ :sub:`0`
+      - x
+      - x
+
+      - g\ :sub:`3`
+      - g\ :sub:`2`
+      - g\ :sub:`1`
+      - g\ :sub:`0`
+      - b\ :sub:`9`
+      - b\ :sub:`8`
+      - b\ :sub:`7`
+      - b\ :sub:`6`
+
+      - r\ :sub:`1`
+      - r\ :sub:`0`
+      - g\ :sub:`9`
+      - g\ :sub:`8`
+      - g\ :sub:`7`
+      - g\ :sub:`6`
+      - g\ :sub:`5`
+      - g\ :sub:`4`
+
+      - r\ :sub:`9`
+      - r\ :sub:`8`
+      - r\ :sub:`7`
+      - r\ :sub:`6`
+      - r\ :sub:`5`
+      - r\ :sub:`4`
+      - r\ :sub:`3`
+      - r\ :sub:`2`
+      -
+    * .. _V4L2-PIX-FMT-RGBA1010102:
+
+      - ``V4L2_PIX_FMT_RGBA1010102``
+      - 'RA30'
+
+      - b\ :sub:`5`
+      - b\ :sub:`4`
+      - b\ :sub:`3`
+      - b\ :sub:`2`
+      - b\ :sub:`1`
+      - b\ :sub:`0`
+      - a\ :sub:`1`
+      - a\ :sub:`0`
+
+      - g\ :sub:`3`
+      - g\ :sub:`2`
+      - g\ :sub:`1`
+      - g\ :sub:`0`
+      - b\ :sub:`9`
+      - b\ :sub:`8`
+      - b\ :sub:`7`
+      - b\ :sub:`6`
+
+      - r\ :sub:`1`
+      - r\ :sub:`0`
+      - g\ :sub:`9`
+      - g\ :sub:`8`
+      - g\ :sub:`7`
+      - g\ :sub:`6`
+      - g\ :sub:`5`
+      - g\ :sub:`4`
+
+      - r\ :sub:`9`
+      - r\ :sub:`8`
+      - r\ :sub:`7`
+      - r\ :sub:`6`
+      - r\ :sub:`5`
+      - r\ :sub:`4`
+      - r\ :sub:`3`
+      - r\ :sub:`2`
+      -
+    * .. _V4L2-PIX-FMT-ARGB2101010:
+
+      - ``V4L2_PIX_FMT_ARGB2101010``
+      - 'AR30'
+
+      - b\ :sub:`7`
+      - b\ :sub:`6`
+      - b\ :sub:`5`
+      - b\ :sub:`4`
+      - b\ :sub:`3`
+      - b\ :sub:`2`
+      - b\ :sub:`1`
+      - b\ :sub:`0`
+
+      - g\ :sub:`5`
+      - g\ :sub:`4`
+      - g\ :sub:`3`
+      - g\ :sub:`2`
+      - g\ :sub:`1`
+      - g\ :sub:`0`
+      - b\ :sub:`9`
+      - b\ :sub:`8`
+
+      - r\ :sub:`3`
+      - r\ :sub:`2`
+      - r\ :sub:`1`
+      - r\ :sub:`0`
+      - g\ :sub:`9`
+      - g\ :sub:`8`
+      - g\ :sub:`7`
+      - g\ :sub:`6`
+
+      - a\ :sub:`1`
+      - a\ :sub:`0`
+      - r\ :sub:`9`
+      - r\ :sub:`8`
+      - r\ :sub:`7`
+      - r\ :sub:`6`
+      - r\ :sub:`5`
+      - r\ :sub:`4`
+      -
+
+.. raw:: latex
+
+    \endgroup
+
+
 Deprecated RGB Formats
 ======================
 

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1298,6 +1298,9 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
 	case V4L2_PIX_FMT_BGRX32:	descr = "32-bit XBGR 8-8-8-8"; break;
 	case V4L2_PIX_FMT_RGBA32:	descr = "32-bit RGBA 8-8-8-8"; break;
 	case V4L2_PIX_FMT_RGBX32:	descr = "32-bit RGBX 8-8-8-8"; break;
+	case V4L2_PIX_FMT_RGBX1010102:	descr = "32-bit RGBX 10-10-10-2"; break;
+	case V4L2_PIX_FMT_RGBA1010102:	descr = "32-bit RGBA 10-10-10-2"; break;
+	case V4L2_PIX_FMT_ARGB2101010:	descr = "32-bit ARGB 2-10-10-10"; break;
 	case V4L2_PIX_FMT_GREY:		descr = "8-bit Greyscale"; break;
 	case V4L2_PIX_FMT_Y4:		descr = "4-bit Greyscale"; break;
 	case V4L2_PIX_FMT_Y6:		descr = "6-bit Greyscale"; break;

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
@@ -576,6 +576,9 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_RGBX32  v4l2_fourcc('X', 'B', '2', '4') /* 32  RGBX-8-8-8-8  */
 #define V4L2_PIX_FMT_ARGB32  v4l2_fourcc('B', 'A', '2', '4') /* 32  ARGB-8-8-8-8  */
 #define V4L2_PIX_FMT_XRGB32  v4l2_fourcc('B', 'X', '2', '4') /* 32  XRGB-8-8-8-8  */
+#define V4L2_PIX_FMT_RGBX1010102 v4l2_fourcc('R', 'X', '3', '0') /* 32  RGBX-10-10-10-2 */
+#define V4L2_PIX_FMT_RGBA1010102 v4l2_fourcc('R', 'A', '3', '0') /* 32  RGBA-10-10-10-2 */
+#define V4L2_PIX_FMT_ARGB2101010 v4l2_fourcc('A', 'R', '3', '0') /* 32  ARGB-2-10-10-10 */
 
 /* Grey formats */
 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */