diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-04-14 02:47:59 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-11-19 22:37:12 +0200 |
| commit | 1459930de57920b5161fee2662f9604de91b9de5 (patch) | |
| tree | 346477f64047d58ad4b57fca551bbbf83644fa1f | |
| parent | 9bc6041f58e175d5d75886f2f5585c31049e995a (diff) | |
include: linux: Add V4L2 subdev internal routing API
The V4L2 subdev internal routing API is under development. Add it
manually to the v4l2-subdev.h kernel header for now.
The code corresponds to "[PATCH v6 00/24] v4l: subdev internal routing"
as ported to the linux-media mailing list.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
| -rw-r--r-- | include/linux/media.h | 1 | ||||
| -rw-r--r-- | include/linux/v4l2-subdev.h | 48 |
2 files changed, 49 insertions, 0 deletions
diff --git a/include/linux/media.h b/include/linux/media.h index 17432318..41c30ca4 100644 --- a/include/linux/media.h +++ b/include/linux/media.h @@ -207,6 +207,7 @@ struct media_entity_desc { #define MEDIA_PAD_FL_SINK (1 << 0) #define MEDIA_PAD_FL_SOURCE (1 << 1) #define MEDIA_PAD_FL_MUST_CONNECT (1 << 2) +#define MEDIA_PAD_FL_MULTIPLEXED (1 << 3) struct media_pad_desc { __u32 entity; /* entity ID */ diff --git a/include/linux/v4l2-subdev.h b/include/linux/v4l2-subdev.h index a38454d9..48adcadc 100644 --- a/include/linux/v4l2-subdev.h +++ b/include/linux/v4l2-subdev.h @@ -178,6 +178,52 @@ struct v4l2_subdev_capability { /* The v4l2 sub-device video device node is registered in read-only mode. */ #define V4L2_SUBDEV_CAP_RO_SUBDEV 0x00000001 +/* + * Is the route active? An active route will start when streaming is enabled + * on a video node. + */ +#define V4L2_SUBDEV_ROUTE_FL_ACTIVE (1UL << 0) + +/* + * Is the route immutable, i.e. can it be activated and inactivated? + * Set by the driver. + */ +#define V4L2_SUBDEV_ROUTE_FL_IMMUTABLE (1UL << 1) + +/** + * struct v4l2_subdev_route - A route inside a subdev + * + * @sink_pad: the sink pad index + * @sink_stream: the sink stream identifier + * @source_pad: the source pad index + * @source_stream: the source stream identifier + * @flags: route flags V4L2_SUBDEV_ROUTE_FL_* + * @reserved: drivers and applications must zero this array + */ +struct v4l2_subdev_route { + __u32 sink_pad; + __u32 sink_stream; + __u32 source_pad; + __u32 source_stream; + __u32 flags; + __u32 reserved[5]; +}; + +/** + * struct v4l2_subdev_routing - Subdev routing information + * + * @which: configuration type (from enum v4l2_subdev_format_whence) + * @routes: pointer to the routes array + * @num_routes: the total number of routes in the routes array + * @reserved: drivers and applications must zero this array + */ +struct v4l2_subdev_routing { + __u32 which; + __u64 routes; + __u32 num_routes; + __u32 reserved[5]; +}; + /* Backwards compatibility define --- to be removed */ #define v4l2_subdev_edid v4l2_edid @@ -193,6 +239,8 @@ struct v4l2_subdev_capability { #define VIDIOC_SUBDEV_S_CROP _IOWR('V', 60, struct v4l2_subdev_crop) #define VIDIOC_SUBDEV_G_SELECTION _IOWR('V', 61, struct v4l2_subdev_selection) #define VIDIOC_SUBDEV_S_SELECTION _IOWR('V', 62, struct v4l2_subdev_selection) +#define VIDIOC_SUBDEV_G_ROUTING _IOWR('V', 38, struct v4l2_subdev_routing) +#define VIDIOC_SUBDEV_S_ROUTING _IOWR('V', 39, struct v4l2_subdev_routing) /* The following ioctls are identical to the ioctls in videodev2.h */ #define VIDIOC_SUBDEV_G_STD _IOR('V', 23, v4l2_std_id) #define VIDIOC_SUBDEV_S_STD _IOW('V', 24, v4l2_std_id) |