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Stream enabling should fail if any other Broadcast Sink streams are in the process of enabling or have been enabled for the same source. Also, a stream that has been enabled and already has the fd set should be started on the spot. --- src/shared/bap.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/src/shared/bap.c b/src/shared/bap.c index b314b4b99..dad510aec 100644 --- a/src/shared/bap.c +++ b/src/shared/bap.c @@ -2195,6 +2195,12 @@ static void bap_bcast_set_state(struct bt_bap_stream *stream, uint8_t state) bap_stream_io_detach(stream); stream_set_state(stream, BT_BAP_STREAM_STATE_IDLE); break; + case BT_ASCS_ASE_STATE_ENABLING: + if (bt_bap_stream_get_io(stream)) + /* Start stream if fd has already been set */ + bt_bap_stream_start(stream, NULL, NULL); + + break; } bt_bap_stream_unref(stream); @@ -2205,11 +2211,40 @@ static unsigned int bap_bcast_get_state(struct bt_bap_stream *stream) return stream->state; } +static bool bcast_sink_stream_enabled(const void *data, const void *match_data) +{ + struct bt_bap_stream *stream = (struct bt_bap_stream *)data; + struct bt_bap_stream *match = (struct bt_bap_stream *)match_data; + uint8_t state = bt_bap_stream_get_state(stream); + + if (stream == match) + return false; + + if (queue_find(stream->links, NULL, match)) + return false; + + /* Ignore streams that are not Broadcast Sink */ + if (bt_bap_pac_get_type(stream->lpac) != BT_BAP_BCAST_SINK) + return false; + + return ((state == BT_BAP_STREAM_STATE_ENABLING) || + bt_bap_stream_get_io(stream)); +} + static unsigned int bap_bcast_sink_enable(struct bt_bap_stream *stream, bool enable_links, struct iovec *data, bt_bap_stream_func_t func, void *user_data) { + struct bt_bap *bap = stream->bap; + + /* The stream cannot be enabled if there is any other + * unlinked stream for the same source that is in the + * process of enabling or that has already been started. + */ + if (queue_find(bap->streams, bcast_sink_stream_enabled, stream)) + return 0; + stream_set_state(stream, BT_BAP_STREAM_STATE_ENABLING); return 1;