From 05773792716e5a75b0f4bf4edcdc1e9c3b199ab8 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Sun, 14 Jun 2015 12:49:32 +0900 Subject: [PATCH 16/21] ALSA: bebob: add SYT-Match support In previous commits, this driver can detect the source of clock as mush as possible. SYT-Match mode is also available. This commit purge the restriction. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/bebob/bebob_pcm.c | 5 ----- sound/firewire/bebob/bebob_stream.c | 20 ++++++++++++++++++-- 2 files changed, 18 insertions(+), 7 deletions(-) diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c index e3f65a0698c7..e0a6b065952f 100644 --- a/sound/firewire/bebob/bebob_pcm.c +++ b/sound/firewire/bebob/bebob_pcm.c @@ -171,11 +171,6 @@ pcm_open(struct snd_pcm_substream *substream) err = snd_bebob_stream_get_clock_src(bebob, &src); if (err < 0) goto err_locked; - /* SYT-Match is not supported. */ - if (src == SND_BEBOB_CLOCK_TYPE_SYT) { - err = -EBUSY; - goto err_locked; - } /* * When source of clock is internal or any PCM stream are running, diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index c8af8ffe2d53..5335c300728c 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -474,8 +474,24 @@ destroy_both_connections(struct snd_bebob *bebob) static int get_sync_mode(struct snd_bebob *bebob, enum cip_flags *sync_mode) { - /* currently this module doesn't support SYT-Match mode */ - *sync_mode = CIP_SYNC_TO_DEVICE; + enum snd_bebob_clock_type src; + int err; + + err = snd_bebob_stream_get_clock_src(bebob, &src); + if (err < 0) + return err; + + switch (src) { + case SND_BEBOB_CLOCK_TYPE_INTERNAL: + case SND_BEBOB_CLOCK_TYPE_EXTERNAL: + *sync_mode = CIP_SYNC_TO_DEVICE; + break; + default: + case SND_BEBOB_CLOCK_TYPE_SYT: + *sync_mode = 0; + break; + } + return 0; } -- 2.3.6