[v4,4/8] v4l2-ctl/compliance: Add simple routing test

Add a very simple test for
VIDIOC_SUBDEV_G_ROUTING/VIDIOC_SUBDEV_S_ROUTING.

We can't (at least at the moment) really know here what kind of routings
the driver would accept, but we can test a VIDIOC_SUBDEV_G_ROUTING call,
followed by a VIDIOC_SUBDEV_S_ROUTING call with the routing we
received.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
 utils/v4l2-compliance/v4l2-compliance.cpp   | 12 ++++++++++++
 utils/v4l2-compliance/v4l2-compliance.h     |  1 +
 utils/v4l2-compliance/v4l2-test-subdevs.cpp | 16 ++++++++++++++++
 3 files changed, 29 insertions(+)

Hi Tomi,

Thank you for the patch.

On Fri, Apr 21, 2023 at 03:44:24PM +0300, Tomi Valkeinen wrote:
> Add a very simple test for
> VIDIOC_SUBDEV_G_ROUTING/VIDIOC_SUBDEV_S_ROUTING.
> 
> We can't (at least at the moment) really know here what kind of routings
> the driver would accept, but we can test a VIDIOC_SUBDEV_G_ROUTING call,
> followed by a VIDIOC_SUBDEV_S_ROUTING call with the routing we
> received.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> ---
>  utils/v4l2-compliance/v4l2-compliance.cpp   | 12 ++++++++++++
>  utils/v4l2-compliance/v4l2-compliance.h     |  1 +
>  utils/v4l2-compliance/v4l2-test-subdevs.cpp | 16 ++++++++++++++++
>  3 files changed, 29 insertions(+)
> 
> diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp b/utils/v4l2-compliance/v4l2-compliance.cpp
> index a147604c..7c3a688b 100644
> --- a/utils/v4l2-compliance/v4l2-compliance.cpp
> +++ b/utils/v4l2-compliance/v4l2-compliance.cpp
> @@ -1241,6 +1241,18 @@ void testNode(struct node &node, struct node &node_m2m_cap, struct node &expbuf_
>  		node.is_passthrough_subdev = has_source && has_sink;
>  
>  		if (has_routes) {
> +			printf("Sub-Device routing ioctls:\n");
> +
> +			for (unsigned which = V4L2_SUBDEV_FORMAT_TRY;
> +				which <= V4L2_SUBDEV_FORMAT_ACTIVE; which++) {
> +
> +				printf("\ttest %s VIDIOC_SUBDEV_G_ROUTING/VIDIOC_SUBDEV_S_ROUTING: %s\n",
> +						       which ? "Active" : "Try",
> +						       ok(testSubDevRouting(&node, which)));

Weird indentation.

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> +			}
> +
> +			printf("\n");
> +
>  			for (unsigned which = V4L2_SUBDEV_FORMAT_TRY;
>  				which <= V4L2_SUBDEV_FORMAT_ACTIVE; which++) {
>  
> diff --git a/utils/v4l2-compliance/v4l2-compliance.h b/utils/v4l2-compliance/v4l2-compliance.h
> index 0cd43980..35b2274b 100644
> --- a/utils/v4l2-compliance/v4l2-compliance.h
> +++ b/utils/v4l2-compliance/v4l2-compliance.h
> @@ -375,6 +375,7 @@ int testSubDevEnum(struct node *node, unsigned which, unsigned pad, unsigned str
>  int testSubDevFormat(struct node *node, unsigned which, unsigned pad, unsigned stream);
>  int testSubDevSelection(struct node *node, unsigned which, unsigned pad, unsigned stream);
>  int testSubDevFrameInterval(struct node *node, unsigned pad, unsigned stream);
> +int testSubDevRouting(struct node *node, unsigned which);
>  
>  // Buffer ioctl tests
>  int testReqBufs(struct node *node);
> diff --git a/utils/v4l2-compliance/v4l2-test-subdevs.cpp b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> index 07192bda..962d9244 100644
> --- a/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> @@ -551,3 +551,19 @@ int testSubDevSelection(struct node *node, unsigned which, unsigned pad, unsigne
>  
>  	return have_sel ? 0 : ENOTTY;
>  }
> +
> +int testSubDevRouting(struct node *node, unsigned which)
> +{
> +	struct v4l2_subdev_routing routing = {};
> +	struct v4l2_subdev_route routes[256] = {};
> +
> +	routing.which = which;
> +	routing.routes = (__u64)&routes;
> +	routing.num_routes = 256;
> +
> +	fail_on_test(doioctl(node, VIDIOC_SUBDEV_G_ROUTING, &routing));
> +
> +	fail_on_test(doioctl(node, VIDIOC_SUBDEV_S_ROUTING, &routing));
> +
> +	return 0;
> +}