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authorTomi Valkeinen <tomi.valkeinen@ideasonboard.com>2023-03-02 12:57:47 +0300
committerMauro Carvalho Chehab <mchehab@kernel.org>2023-03-20 02:38:23 +0300
commit698a619a04bee1359358d5cba552f008709b79bc (patch)
treebfbb0a0ff451db8e7bea4514df32e2f511dc6871 /include/media/v4l2-subdev.h
parenta50ee4afc77e4df14bc146e03b3fa28daeec14a9 (diff)
downloadlinux-698a619a04bee1359358d5cba552f008709b79bc.tar.xz
media: subdev: Split V4L2_SUBDEV_ROUTING_NO_STREAM_MIX
V4L2_SUBDEV_ROUTING_NO_STREAM_MIX routing validation flag means that all routes from a sink pad must go to the same source pad and all routes going to the same source pad must originate from the same sink pad. This does not cover all use cases. For example, if a device routes all streams from a single sink pad to any of the source pads, but streams from multiple sink pads can go to the same source pad, the current flag is too restrictive. Split the flag into two parts, V4L2_SUBDEV_ROUTING_NO_SINK_STREAM_MIX and V4L2_SUBDEV_ROUTING_NO_SOURCE_STREAM_MIX, which add the restriction only on one side of the device. Together they mean the same as V4L2_SUBDEV_ROUTING_NO_STREAM_MIX. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'include/media/v4l2-subdev.h')
-rw-r--r--include/media/v4l2-subdev.h17
1 files changed, 14 insertions, 3 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index f6acb055579a..f921d8a7898e 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -1647,19 +1647,30 @@ u64 v4l2_subdev_state_xlate_streams(const struct v4l2_subdev_state *state,
* @V4L2_SUBDEV_ROUTING_NO_N_TO_1:
* multiple input streams shall not be routed to the same output stream
* (stream merging)
- * @V4L2_SUBDEV_ROUTING_NO_STREAM_MIX:
- * streams on the same pad shall not be routed to streams on different pads
+ * @V4L2_SUBDEV_ROUTING_NO_SINK_STREAM_MIX:
+ * all streams from a sink pad must be routed to a single source pad
+ * @V4L2_SUBDEV_ROUTING_NO_SOURCE_STREAM_MIX:
+ * all streams on a source pad must originate from a single sink pad
* @V4L2_SUBDEV_ROUTING_ONLY_1_TO_1:
* only non-overlapping 1-to-1 stream routing is allowed (a combination of
* @V4L2_SUBDEV_ROUTING_NO_1_TO_N and @V4L2_SUBDEV_ROUTING_NO_N_TO_1)
+ * @V4L2_SUBDEV_ROUTING_NO_STREAM_MIX:
+ * all streams from a sink pad must be routed to a single source pad, and
+ * that source pad shall not get routes from any other sink pad
+ * (a combination of @V4L2_SUBDEV_ROUTING_NO_SINK_STREAM_MIX and
+ * @V4L2_SUBDEV_ROUTING_NO_SOURCE_STREAM_MIX)
*/
enum v4l2_subdev_routing_restriction {
V4L2_SUBDEV_ROUTING_NO_1_TO_N = BIT(0),
V4L2_SUBDEV_ROUTING_NO_N_TO_1 = BIT(1),
- V4L2_SUBDEV_ROUTING_NO_STREAM_MIX = BIT(2),
+ V4L2_SUBDEV_ROUTING_NO_SINK_STREAM_MIX = BIT(2),
+ V4L2_SUBDEV_ROUTING_NO_SOURCE_STREAM_MIX = BIT(3),
V4L2_SUBDEV_ROUTING_ONLY_1_TO_1 =
V4L2_SUBDEV_ROUTING_NO_1_TO_N |
V4L2_SUBDEV_ROUTING_NO_N_TO_1,
+ V4L2_SUBDEV_ROUTING_NO_STREAM_MIX =
+ V4L2_SUBDEV_ROUTING_NO_SINK_STREAM_MIX |
+ V4L2_SUBDEV_ROUTING_NO_SOURCE_STREAM_MIX,
};
/**