From d85f7d1f1f705713786f9416841007030dd55a59 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Mon, 7 Oct 2019 20:05:19 +0900 Subject: [PATCH] ALSA: oxfw: 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 Link: https://lore.kernel.org/r/20191007110532.30270-5-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai --- sound/firewire/oxfw/oxfw-midi.c | 4 ++-- sound/firewire/oxfw/oxfw-pcm.c | 6 ++++-- sound/firewire/oxfw/oxfw-stream.c | 12 +++++++++++- sound/firewire/oxfw/oxfw.h | 3 ++- 4 files changed, 19 insertions(+), 6 deletions(-) diff --git a/sound/firewire/oxfw/oxfw-midi.c b/sound/firewire/oxfw/oxfw-midi.c index 9bdec08cb8eac..72db7a17d0ade 100644 --- a/sound/firewire/oxfw/oxfw-midi.c +++ b/sound/firewire/oxfw/oxfw-midi.c @@ -18,7 +18,7 @@ static int midi_capture_open(struct snd_rawmidi_substream *substream) mutex_lock(&oxfw->mutex); - err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->tx_stream, 0, 0); + err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->tx_stream, 0, 0, 0); if (err >= 0) { ++oxfw->substreams_count; err = snd_oxfw_stream_start_duplex(oxfw); @@ -45,7 +45,7 @@ static int midi_playback_open(struct snd_rawmidi_substream *substream) mutex_lock(&oxfw->mutex); - err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->rx_stream, 0, 0); + err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->rx_stream, 0, 0, 0); if (err >= 0) { ++oxfw->substreams_count; err = snd_oxfw_stream_start_duplex(oxfw); diff --git a/sound/firewire/oxfw/oxfw-pcm.c b/sound/firewire/oxfw/oxfw-pcm.c index 7c6d1c277d4d9..2d1b5038f7f64 100644 --- a/sound/firewire/oxfw/oxfw-pcm.c +++ b/sound/firewire/oxfw/oxfw-pcm.c @@ -221,10 +221,11 @@ static int pcm_capture_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 channels = params_channels(hw_params); + unsigned int frames_per_period = params_period_size(hw_params); mutex_lock(&oxfw->mutex); err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->tx_stream, - rate, channels); + rate, channels, frames_per_period); if (err >= 0) ++oxfw->substreams_count; mutex_unlock(&oxfw->mutex); @@ -246,10 +247,11 @@ static int pcm_playback_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 channels = params_channels(hw_params); + unsigned int frames_per_period = params_period_size(hw_params); mutex_lock(&oxfw->mutex); err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->rx_stream, - rate, channels); + rate, channels, frames_per_period); if (err >= 0) ++oxfw->substreams_count; mutex_unlock(&oxfw->mutex); diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c index 3c9a796b65269..7d2e88c5b73d3 100644 --- a/sound/firewire/oxfw/oxfw-stream.c +++ b/sound/firewire/oxfw/oxfw-stream.c @@ -244,7 +244,8 @@ static int keep_resources(struct snd_oxfw *oxfw, struct amdtp_stream *stream) int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, struct amdtp_stream *stream, - unsigned int rate, unsigned int pcm_channels) + unsigned int rate, unsigned int pcm_channels, + unsigned int frames_per_period) { struct snd_oxfw_stream_formation formation; enum avc_general_plug_dir dir; @@ -305,6 +306,15 @@ int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, return err; } } + + err = amdtp_domain_set_events_per_period(&oxfw->domain, + frames_per_period); + if (err < 0) { + cmp_connection_release(&oxfw->in_conn); + if (oxfw->has_output) + cmp_connection_release(&oxfw->out_conn); + return err; + } } return 0; diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h index c9627b8c5d6e8..422746ef24390 100644 --- a/sound/firewire/oxfw/oxfw.h +++ b/sound/firewire/oxfw/oxfw.h @@ -103,7 +103,8 @@ int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw); int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, struct amdtp_stream *stream, - unsigned int rate, unsigned int pcm_channels); + unsigned int rate, unsigned int pcm_channels, + unsigned int frames_per_period); int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw); void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw); void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw); -- 2.39.5