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media: subdev: add v4l2_subdev_set_routing_with_fmt() helper

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v4l2_subdev_set_routing_with_fmt() is the same as
v4l2_subdev_set_routing(), but additionally initializes all the streams
with the given format.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Tomi Valkeinen
2021-08-25 12:24:09 +02:00
committed by Mauro Carvalho Chehab
parent 72c5fbcaa3
commit 5b0d85b379
2 changed files with 38 additions and 0 deletions
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22
drivers/media/v4l2-core/v4l2-subdev.c
View File

@@ -1481,6 +1481,28 @@ __v4l2_subdev_next_active_route(const struct v4l2_subdev_krouting *routing,
}
EXPORT_SYMBOL_GPL(__v4l2_subdev_next_active_route);
int v4l2_subdev_set_routing_with_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
struct v4l2_subdev_krouting *routing,
const struct v4l2_mbus_framefmt *fmt)
{
struct v4l2_subdev_stream_configs *stream_configs;
unsigned int i;
int ret;
ret = v4l2_subdev_set_routing(sd, state, routing);
if (ret)
return ret;
stream_configs = &state->stream_configs;
for (i = 0; i < stream_configs->num_configs; ++i)
stream_configs->configs[i].fmt = *fmt;
return 0;
}
EXPORT_SYMBOL_GPL(v4l2_subdev_set_routing_with_fmt);
struct v4l2_mbus_framefmt *
v4l2_subdev_state_get_stream_format(struct v4l2_subdev_state *state,
unsigned int pad, u32 stream)

16
include/media/v4l2-subdev.h
View File

@@ -1486,6 +1486,22 @@ __v4l2_subdev_next_active_route(const struct v4l2_subdev_krouting *routing,
for ((route) = NULL; \
((route) = __v4l2_subdev_next_active_route((routing), (route)));)
/**
* v4l2_subdev_set_routing_with_fmt() - Set given routing and format to subdev
* state
* @sd: The subdevice
* @state: The subdevice state
* @routing: Routing that will be copied to subdev state
* @fmt: Format used to initialize all the streams
*
* This is the same as v4l2_subdev_set_routing, but additionally initializes
* all the streams using the given format.
*/
int v4l2_subdev_set_routing_with_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
struct v4l2_subdev_krouting *routing,
const struct v4l2_mbus_framefmt *fmt);
/**
* v4l2_subdev_state_get_stream_format() - Get pointer to a stream format
* @state: subdevice state