diff options
| author | Takashi Sakamoto | 2019-07-22 12:36:56 +0900 |
|---|---|---|
| committer | Takashi Iwai | 2019-07-22 16:05:00 +0200 |
| commit | 3baf30532f94030244a31a275b546d042656c535 (patch) | |
| tree | a8b92f5cf7c20ca9e5a190e5a9f91b2a005ff072 /sound/firewire/motu | |
| parent | a35463d1f77d9e5244d6f4953d3c7f3a27c7625e (diff) | |
ALSA: firewire-lib: add syt_override member for some protocols
Some protocols don't use syt field of CIP header to represent
presentation timestamp. For such protocol, ALSA IEC 61883-1/6
packet streaming engine uses a pointer into local variable for
the value of syt to call data block processing layer. However,
it can decide the value when initializing packet streaming
layer.
This commit adds 'syt_override' member for packet streaming
layer.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/motu')
| -rw-r--r-- | sound/firewire/motu/amdtp-motu.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sound/firewire/motu/amdtp-motu.c b/sound/firewire/motu/amdtp-motu.c index 9693f37a0032..683873699885 100644 --- a/sound/firewire/motu/amdtp-motu.c +++ b/sound/firewire/motu/amdtp-motu.c @@ -428,7 +428,13 @@ int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit, return err; s->sph = 1; - s->ctx_data.rx.fdf = MOTU_FDF_AM824; + + if (dir == AMDTP_OUT_STREAM) { + // Use fixed value for FDF field. + s->ctx_data.rx.fdf = MOTU_FDF_AM824; + // Not used. + s->ctx_data.rx.syt_override = 0xffff; + } return 0; } |