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| author | Sakari Ailus <[email protected]> | 2023-08-31 12:40:07 +0000 |
|---|---|---|
| committer | Hans Verkuil <[email protected]> | 2024-04-29 12:56:37 +0000 |
| commit | 1bfef49741fde3fa4a4d3276352e25a6a2a86499 (patch) | |
| tree | 10a69a59ef0ccd87283f467f6da52a467739e1dc /drivers/media/v4l2-core/v4l2-subdev.c | |
| parent | media: v4l: subdev: Return routes set using S_ROUTING (diff) | |
| download | kernel-1bfef49741fde3fa4a4d3276352e25a6a2a86499.tar.gz kernel-1bfef49741fde3fa4a4d3276352e25a6a2a86499.zip | |
media: v4l: subdev: Add trivial set_routing support
Add trivial S_ROUTING IOCTL support for drivers where routing is static.
Essentially this means returning the same information G_ROUTING call would
have done.
Signed-off-by: Sakari Ailus <[email protected]>
Co-developed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
Reviewed-by: Julien Massot <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-subdev.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-subdev.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index 3d1ed8ab5229..8470d6eda9a3 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -1013,6 +1013,20 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg, return -EINVAL; } + /* + * If the driver doesn't support setting routing, just return + * the routing table. + */ + if (!v4l2_subdev_has_op(sd, pad, set_routing)) { + memcpy((struct v4l2_subdev_route *)(uintptr_t)routing->routes, + state->routing.routes, + min(state->routing.num_routes, routing->len_routes) * + sizeof(*state->routing.routes)); + routing->num_routes = state->routing.num_routes; + + return 0; + } + krouting.num_routes = routing->num_routes; krouting.len_routes = routing->len_routes; krouting.routes = routes; |