summaryrefslogtreecommitdiff
path: root/sound/firewire/motu
diff options
context:
space:
mode:
authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2021-05-22 04:32:58 +0300
committerTakashi Iwai <tiwai@suse.de>2021-05-22 09:46:41 +0300
commit8070d2652e735585d31a50ff4f9bbaf2b5a49b10 (patch)
tree7e4a3e293b5da5c381f918d5568f2c2d0e53f288 /sound/firewire/motu
parent344f0f821a7ee77832f04451e616f313b7d93f1a (diff)
downloadlinux-8070d2652e735585d31a50ff4f9bbaf2b5a49b10.tar.xz
ALSA: firewire-lib: add flag to unaware of syt in CIP header
Many devices are unaware of syt field in rx CIP for playback timing. This commit adds a flag to cancel processing syt field. Actually, syt calculation is required to decide the number of events per rx packet. The flag put 0xffff to CIP header of rx packet. On the other hand, The value of syt field in CIP header of tx packet is unavailable. The sequence of packet descriptor for tx packet includes 0 for the offset of syt field to avoid computation. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20210522013303.49596-2-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.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/sound/firewire/motu/amdtp-motu.c b/sound/firewire/motu/amdtp-motu.c
index 9ccde07d6295..18bf433f43b6 100644
--- a/sound/firewire/motu/amdtp-motu.c
+++ b/sound/firewire/motu/amdtp-motu.c
@@ -441,7 +441,7 @@ int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit,
{
amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
int fmt = CIP_FMT_MOTU;
- int flags = CIP_BLOCKING;
+ unsigned int flags = CIP_BLOCKING | CIP_UNAWARE_SYT;
int err;
if (dir == AMDTP_IN_STREAM) {
@@ -479,8 +479,6 @@ int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit,
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;