diff options
| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2019-07-22 12:37:01 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-07-22 16:05:05 +0200 |
| commit | 5e2ece0fdceb02f6c47f53bef309395701a65393 (patch) | |
| tree | 371ba9b3c547bd1d63529e7d74ae22d5e1f1ffb0 /sound | |
| parent | 753e717986c24b60962367708479555212730b9f (diff) | |
| download | linux-5e2ece0fdceb02f6c47f53bef309395701a65393.tar.bz2 | |
ALSA: firewire-lib: code refactoring to process PCM substream
This is code refactoring to separate PCM substream processing from packet
queueing.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/firewire/amdtp-stream.c | 45 |
1 files changed, 25 insertions, 20 deletions
diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index 68502a8864b9..99b89bd70bc5 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -776,16 +776,24 @@ static void out_stream_callback(struct fw_iso_context *context, u32 tstamp, for (i = 0; i < packets; ++i) { const struct pkt_desc *desc = s->pkt_descs + i; + struct snd_pcm_substream *pcm; unsigned int pcm_frames; + + pcm_frames = s->process_data_blocks(s, desc->ctx_payload, + desc->data_blocks, desc->data_block_counter); + + pcm = READ_ONCE(s->pcm); + if (pcm && pcm_frames > 0) + update_pcm_pointers(s, pcm, pcm_frames); + } + + for (i = 0; i < packets; ++i) { + const struct pkt_desc *desc = s->pkt_descs + i; unsigned int syt; struct { struct fw_iso_packet params; __be32 header[IT_PKT_HEADER_SIZE_CIP / sizeof(__be32)]; } template = { {0}, {0} }; - struct snd_pcm_substream *pcm; - - pcm_frames = s->process_data_blocks(s, desc->ctx_payload, - desc->data_blocks, desc->data_block_counter); if (s->ctx_data.rx.syt_override < 0) syt = desc->syt; @@ -800,10 +808,6 @@ static void out_stream_callback(struct fw_iso_context *context, u32 tstamp, cancel_stream(s); return; } - - pcm = READ_ONCE(s->pcm); - if (pcm && pcm_frames > 0) - update_pcm_pointers(s, pcm, pcm_frames); } fw_iso_context_queue_flush(s->context); @@ -831,28 +835,29 @@ static void in_stream_callback(struct fw_iso_context *context, u32 tstamp, cancel_stream(s); return; } - } - - for (i = 0; i < packets; i++) { - const struct pkt_desc *desc = s->pkt_descs; - unsigned int pcm_frames = 0; - struct fw_iso_packet params = {0}; - struct snd_pcm_substream *pcm; + } else { + for (i = 0; i < packets; ++i) { + const struct pkt_desc *desc = s->pkt_descs; + struct snd_pcm_substream *pcm; + unsigned int pcm_frames; - if (err >= 0) { pcm_frames = s->process_data_blocks(s, desc->ctx_payload, desc->data_blocks, desc->data_block_counter); + + pcm = READ_ONCE(s->pcm); + if (pcm && pcm_frames > 0) + update_pcm_pointers(s, pcm, pcm_frames); } + } + + for (i = 0; i < packets; ++i) { + struct fw_iso_packet params = {0}; if (queue_in_packet(s, ¶ms) < 0) { cancel_stream(s); return; } - - pcm = READ_ONCE(s->pcm); - if (pcm && pcm_frames > 0) - update_pcm_pointers(s, pcm, pcm_frames); } fw_iso_context_queue_flush(s->context); |