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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2019-10-07 20:05:24 +0900
committerTakashi Iwai <tiwai@suse.de>2019-10-17 12:02:43 +0200
commit9d9ff58c2f45f2bf926f7ee7c70bcc01bad4c0e8 (patch)
tree9f2204d46698c66739600fdfe31acf2d66a2129e /sound
parent0d39cd0e449925a6221da48835ef962cd72f330f (diff)
downloadlinux-9d9ff58c2f45f2bf926f7ee7c70bcc01bad4c0e8.tar.bz2
ALSA: fireface: register the size of PCM period to AMDTP domain
This commit is a preparation to share the size of PCM period between PCM substreams on AMDTP streams in the same domain. At this time, the size of PCM period in PCM substream which starts AMDTP streams in the same domain is recorded. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191007110532.30270-10-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/firewire/fireface/ff-pcm.c3
-rw-r--r--sound/firewire/fireface/ff-stream.c11
-rw-r--r--sound/firewire/fireface/ff.h3
3 files changed, 14 insertions, 3 deletions
diff --git a/sound/firewire/fireface/ff-pcm.c b/sound/firewire/fireface/ff-pcm.c
index 9eab3ad283ce..4f2208202494 100644
--- a/sound/firewire/fireface/ff-pcm.c
+++ b/sound/firewire/fireface/ff-pcm.c
@@ -211,9 +211,10 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
unsigned int rate = params_rate(hw_params);
+ unsigned int frames_per_period = params_period_size(hw_params);
mutex_lock(&ff->mutex);
- err = snd_ff_stream_reserve_duplex(ff, rate);
+ err = snd_ff_stream_reserve_duplex(ff, rate, frames_per_period);
if (err >= 0)
++ff->substreams_counter;
mutex_unlock(&ff->mutex);
diff --git a/sound/firewire/fireface/ff-stream.c b/sound/firewire/fireface/ff-stream.c
index e8e6f9fd6433..d05e7d3055e1 100644
--- a/sound/firewire/fireface/ff-stream.c
+++ b/sound/firewire/fireface/ff-stream.c
@@ -106,7 +106,8 @@ void snd_ff_stream_destroy_duplex(struct snd_ff *ff)
destroy_stream(ff, &ff->tx_stream);
}
-int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate)
+int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate,
+ unsigned int frames_per_period)
{
unsigned int curr_rate;
enum snd_ff_clock_src src;
@@ -150,6 +151,14 @@ int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate)
err = ff->spec->protocol->allocate_resources(ff, rate);
if (err < 0)
return err;
+
+ err = amdtp_domain_set_events_per_period(&ff->domain,
+ frames_per_period);
+ if (err < 0) {
+ fw_iso_resources_free(&ff->tx_resources);
+ fw_iso_resources_free(&ff->rx_resources);
+ return err;
+ }
}
return 0;
diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h
index b4c22ca6079e..970d4ae571ee 100644
--- a/sound/firewire/fireface/ff.h
+++ b/sound/firewire/fireface/ff.h
@@ -139,7 +139,8 @@ int snd_ff_stream_get_multiplier_mode(enum cip_sfc sfc,
enum snd_ff_stream_mode *mode);
int snd_ff_stream_init_duplex(struct snd_ff *ff);
void snd_ff_stream_destroy_duplex(struct snd_ff *ff);
-int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate);
+int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate,
+ unsigned int frames_per_period);
int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate);
void snd_ff_stream_stop_duplex(struct snd_ff *ff);
void snd_ff_stream_update_duplex(struct snd_ff *ff);