bluetooth: tester: audio: Add verification for bis stopping

Adds a semaphor to make sure the stream has properly been stopped by the
controller before returning from btp_bap_broadcast_source_stop.

Signed-off-by: Frode van der Meeren <[email protected]>

tests/bluetooth/tester/src/audio/btp_bap_broadcast.c

@@ -23,6 +23,8 @@ LOG_MODULE_REGISTER(LOG_MODULE_NAME, CONFIG_BTTESTER_LOG_LEVEL);
 #include "btp_bap_audio_stream.h"
 #include "btp_bap_broadcast.h"
 
+static K_SEM_DEFINE(sem_bis_stopped, 0U, 1);
+
 static struct btp_bap_broadcast_remote_source remote_broadcast_sources[1];
 static struct btp_bap_broadcast_local_source local_source;
 /* Only one PA sync supported for now. */
@@ -132,8 +134,9 @@ static void stream_stopped(struct bt_bap_stream *stream, uint8_t reason)
 	LOG_DBG("Stopped stream %p with reason 0x%02X", stream, reason);
 
 	btp_bap_audio_stream_stopped(&b_stream->audio_stream);
-
 	b_stream->bis_synced = false;
+
+	k_sem_give(&sem_bis_stopped);
 }
 
 static void send_bis_stream_received_ev(const bt_addr_le_t *address, uint32_t broadcast_id,
@@ -484,13 +487,22 @@ uint8_t btp_bap_broadcast_source_stop(const void *cmd, uint16_t cmd_len,
 
 	LOG_DBG("");
 
+	k_sem_reset(&sem_bis_stopped)
+
 	err = bt_bap_broadcast_source_stop(source->bap_broadcast);
 	if (err != 0) {
 		LOG_DBG("Unable to stop broadcast source: %d", err);
 
 		return BTP_STATUS_FAILED;
 	}
 
+	err = k_sem_take(&sem_bis_stopped, K_MSEC(2000));
+	if (err != 0) {
+		LOG_DBG("Timed out waiting to stop BIS stream");
+
+		return BTP_STATUS_FAILED;
+	}
+
 	return BTP_STATUS_SUCCESS;
 }