[DNI] include: linux: Update kernel headers to metadata API

Update kernel headers to the rpi/v6.8/unicam/next branch at commit
1dfbc8d9a4e2. This pulls in the new V4L2 internal pads and
device-specific metadata APIs that are under development, and should not
be merged in libcamera until the APIs stabilize.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

6 files changed, 29 insertions, 5 deletions

diff --git a/include/linux/README b/include/linux/README
index ef178681..54c125b1 100644
--- a/include/linux/README
+++ b/include/linux/README
@@ -1,4 +1,4 @@
 # SPDX-License-Identifier: CC0-1.0
 
-Files in this directory are imported from next-media-rkisp1-20240814-14-ga043ea54bbb9 of the Linux kernel. Do not
+Files in this directory are imported from v6.8-84-g46741aede3aa of the Linux kernel. Do not
 modify them manually.
diff --git a/include/linux/media-bus-format.h b/include/linux/media-bus-format.h
index d4c1d991..13e68c2c 100644
--- a/include/linux/media-bus-format.h
+++ b/include/linux/media-bus-format.h
@@ -183,4 +183,8 @@
 #define MEDIA_BUS_FMT_META_20			0x8006
 #define MEDIA_BUS_FMT_META_24			0x8007
 
+/* Specific metadata formats. Next is 0x9003. */
+#define MEDIA_BUS_FMT_CCS_EMBEDDED		0x9001
+#define MEDIA_BUS_FMT_OV2740_EMBEDDED		0x9002
+
 #endif /* __LINUX_MEDIA_BUS_FORMAT_H */
diff --git a/include/linux/media.h b/include/linux/media.h
index b5a77bbf..4a733b9b 100644
--- a/include/linux/media.h
+++ b/include/linux/media.h
@@ -206,6 +206,7 @@ struct media_entity_desc {
 #define MEDIA_PAD_FL_SINK			(1U << 0)
 #define MEDIA_PAD_FL_SOURCE			(1U << 1)
 #define MEDIA_PAD_FL_MUST_CONNECT		(1U << 2)
+#define MEDIA_PAD_FL_INTERNAL			(1U << 3)
 
 struct media_pad_desc {
 	__u32 entity;		/* entity ID */
diff --git a/include/linux/v4l2-controls.h b/include/linux/v4l2-controls.h
index 882a8180..accbf65c 100644
--- a/include/linux/v4l2-controls.h
+++ b/include/linux/v4l2-controls.h
@@ -177,10 +177,6 @@ enum v4l2_colorfx {
  * We reserve 128 controls for this driver.
  */
 #define V4L2_CID_USER_CCS_BASE			(V4L2_CID_USER_BASE + 0x10f0)
-
-/* The base for the bcm2835-isp driver controls.
- * We reserve 16 controls for this driver. */
-#define V4L2_CID_USER_BCM2835_ISP_BASE		(V4L2_CID_USER_BASE + 0x10e0)
 /*
  * The base for Allegro driver controls.
  * We reserve 16 controls for this driver.
@@ -217,6 +213,12 @@ enum v4l2_colorfx {
  */
 #define V4L2_CID_USER_THP7312_BASE		(V4L2_CID_USER_BASE + 0x11c0)
 
+/*
+ * The base for the bcm2835-isp driver controls.
+ * We reserve 16 controls for this driver.
+ */
+#define V4L2_CID_USER_BCM2835_ISP_BASE		(V4L2_CID_USER_BASE + 0x11d0)
+
 /* MPEG-class control IDs */
 /* The MPEG controls are applicable to all codec controls
  * and the 'MPEG' part of the define is historical */
diff --git a/include/linux/v4l2-subdev.h b/include/linux/v4l2-subdev.h
index 2347e266..8a39d37e 100644
--- a/include/linux/v4l2-subdev.h
+++ b/include/linux/v4l2-subdev.h
@@ -204,6 +204,11 @@ struct v4l2_subdev_capability {
  * on a video node.
  */
 #define V4L2_SUBDEV_ROUTE_FL_ACTIVE		(1U << 0)
+/*
+ * Is the route immutable. The ACTIVE flag of an immutable route may not be
+ * changed.
+ */
+#define V4L2_SUBDEV_ROUTE_FL_IMMUTABLE		(1U << 1)
 
 /**
  * struct v4l2_subdev_route - A route inside a subdev
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 3829c0b6..ba07bfd3 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -834,6 +834,18 @@ struct v4l2_pix_format {
 /* Vendor specific - used for RaspberryPi PiSP */
 #define V4L2_META_FMT_RPI_BE_CFG	v4l2_fourcc('R', 'P', 'B', 'C') /* PiSP BE configuration */
 
+/*
+ * Line-based metadata formats. Remember to update v4l_fill_fmtdesc() when
+ * adding new ones!
+ */
+#define V4L2_META_FMT_GENERIC_8		v4l2_fourcc('M', 'E', 'T', '8') /* Generic 8-bit metadata */
+#define V4L2_META_FMT_GENERIC_CSI2_10	v4l2_fourcc('M', 'C', '1', 'A') /* 10-bit CSI-2 packed 8-bit metadata */
+#define V4L2_META_FMT_GENERIC_CSI2_12	v4l2_fourcc('M', 'C', '1', 'C') /* 12-bit CSI-2 packed 8-bit metadata */
+#define V4L2_META_FMT_GENERIC_CSI2_14	v4l2_fourcc('M', 'C', '1', 'E') /* 14-bit CSI-2 packed 8-bit metadata */
+#define V4L2_META_FMT_GENERIC_CSI2_16	v4l2_fourcc('M', 'C', '1', 'G') /* 16-bit CSI-2 packed 8-bit metadata */
+#define V4L2_META_FMT_GENERIC_CSI2_20	v4l2_fourcc('M', 'C', '1', 'K') /* 20-bit CSI-2 packed 8-bit metadata */
+#define V4L2_META_FMT_GENERIC_CSI2_24	v4l2_fourcc('M', 'C', '1', 'O') /* 24-bit CSI-2 packed 8-bit metadata */
+
 /* The metadata format identifier for FE configuration buffers. */
 #define V4L2_META_FMT_RPI_FE_CFG v4l2_fourcc('R', 'P', 'F', 'C')