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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2021-05-20 13:01:54 +0900
committerTakashi Iwai <tiwai@suse.de>2021-05-20 14:01:17 +0200
commitbdaedca74d6293b6ac643a8ebe8231b52bf1171b (patch)
tree3d7d64b6ed2b6111aec0f12f289e702d18e320ae /sound/firewire/digi00x
parent9b1fcd9bf802062c1b6c325b7762f4ecdc59f309 (diff)
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ALSA: firewire-lib: change waking up timing to process packets
When starting AMDTP domain, tasks in process context yields running CPU till all of isochronous context get callback, with an assumption that it's OK to process content of packet. However several isochronous cycles are skipped to transfer rx packets, or the content of rx packets are dropped, to manage the timing to start processing the packets. This commit changes the timing for tasks in process context to wake up when processing content of packet is actually ready. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20210520040154.80450-9-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/digi00x')
-rw-r--r--sound/firewire/digi00x/digi00x-stream.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/sound/firewire/digi00x/digi00x-stream.c b/sound/firewire/digi00x/digi00x-stream.c
index 405d6903bfbc..f11aaff2e248 100644
--- a/sound/firewire/digi00x/digi00x-stream.c
+++ b/sound/firewire/digi00x/digi00x-stream.c
@@ -7,7 +7,7 @@
#include "digi00x.h"
-#define CALLBACK_TIMEOUT 500
+#define READY_TIMEOUT_MS 500
const unsigned int snd_dg00x_stream_rates[SND_DG00X_RATE_COUNT] = {
[SND_DG00X_RATE_44100] = 44100,
@@ -379,10 +379,7 @@ int snd_dg00x_stream_start_duplex(struct snd_dg00x *dg00x)
if (err < 0)
goto error;
- if (!amdtp_stream_wait_callback(&dg00x->rx_stream,
- CALLBACK_TIMEOUT) ||
- !amdtp_stream_wait_callback(&dg00x->tx_stream,
- CALLBACK_TIMEOUT)) {
+ if (!amdtp_domain_wait_ready(&dg00x->domain, READY_TIMEOUT_MS)) {
err = -ETIMEDOUT;
goto error;
}