diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-subdev.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-subdev.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index d7e157c7e612..13f1a100496e 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -1615,6 +1615,32 @@ v4l2_subdev_state_get_opposite_stream_format(struct v4l2_subdev_state *state, } EXPORT_SYMBOL_GPL(v4l2_subdev_state_get_opposite_stream_format); +u64 v4l2_subdev_state_xlate_streams(const struct v4l2_subdev_state *state, + u32 pad0, u32 pad1, u64 *streams) +{ + const struct v4l2_subdev_krouting *routing = &state->routing; + struct v4l2_subdev_route *route; + u64 streams0 = 0; + u64 streams1 = 0; + + for_each_active_route(routing, route) { + if (route->sink_pad == pad0 && route->source_pad == pad1 && + (*streams & BIT_ULL(route->sink_stream))) { + streams0 |= BIT_ULL(route->sink_stream); + streams1 |= BIT_ULL(route->source_stream); + } + if (route->source_pad == pad0 && route->sink_pad == pad1 && + (*streams & BIT_ULL(route->source_stream))) { + streams0 |= BIT_ULL(route->source_stream); + streams1 |= BIT_ULL(route->sink_stream); + } + } + + *streams = streams0; + return streams1; +} +EXPORT_SYMBOL_GPL(v4l2_subdev_state_xlate_streams); + int v4l2_subdev_routing_validate(struct v4l2_subdev *sd, const struct v4l2_subdev_krouting *routing, enum v4l2_subdev_routing_restriction disallow) |