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ALSA: firewire-lib: code refactoring to process context payloads

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This is code refactoring for common processing for payloads of
ishocornous context.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2019-07-22 12:37:02 +09:00 committed by Takashi Iwai
parent 5e2ece0fdc
commit 0f5cfcb24d
1 changed files with 22 additions and 25 deletions
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47
sound/firewire/amdtp-stream.c
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@ -760,6 +760,26 @@ static inline void cancel_stream(struct amdtp_stream *s)
WRITE_ONCE(s->pcm_buffer_pointer, SNDRV_PCM_POS_XRUN);
}
static void process_ctx_payloads(struct amdtp_stream *s,
const struct pkt_desc *descs,
unsigned int packets)
{
int i;
for (i = 0; i < packets; ++i) {
const struct pkt_desc *desc = 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);
}
}
static void out_stream_callback(struct fw_iso_context *context, u32 tstamp,
size_t header_length, void *header,
void *private_data)
@ -774,18 +794,7 @@ static void out_stream_callback(struct fw_iso_context *context, u32 tstamp,
generate_ideal_pkt_descs(s, s->pkt_descs, ctx_header, packets);
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);
}
process_ctx_payloads(s, s->pkt_descs, packets);
for (i = 0; i < packets; ++i) {
const struct pkt_desc *desc = s->pkt_descs + i;
@ -836,19 +845,7 @@ static void in_stream_callback(struct fw_iso_context *context, u32 tstamp,
return;
}
} else {
for (i = 0; i < packets; ++i) {
const struct pkt_desc *desc = s->pkt_descs;
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);
}
process_ctx_payloads(s, s->pkt_descs, packets);
}
for (i = 0; i < packets; ++i) {