diff options
Diffstat (limited to 'sound/firewire/amdtp-stream.c')
| -rw-r--r-- | sound/firewire/amdtp-stream.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index 9e6f54f8c45d..4316d9db404d 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -929,6 +929,25 @@ unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s) EXPORT_SYMBOL(amdtp_stream_pcm_pointer); /** + * amdtp_stream_pcm_ack - acknowledge queued PCM frames + * @s: the AMDTP stream that transfers the PCM frames + * + * Returns zero always. + */ +int amdtp_stream_pcm_ack(struct amdtp_stream *s) +{ + /* + * Process isochronous packets for recent isochronous cycle to handle + * queued PCM frames. + */ + if (amdtp_stream_running(s)) + fw_iso_context_flush_completions(s->context); + + return 0; +} +EXPORT_SYMBOL(amdtp_stream_pcm_ack); + +/** * amdtp_stream_update - update the stream after a bus reset * @s: the AMDTP stream */ |