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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2019-07-22 12:37:09 +0900
committerTakashi Iwai <tiwai@suse.de>2019-07-22 16:05:11 +0200
commit9a738ad1b1a64ef6d8271d8d42d715b75db6eb0d (patch)
tree5c98d0ef8615c5c01724ddbb0161089be9407a42 /sound/firewire/amdtp-am824.c
parent4731c672c930e490515f1747fb34d56d61ae57ac (diff)
ALSA: firewire-lib: process payload of isoc context according to packet descriptors
This commit changes each of data block processing layer so that it receives list of packet descriptor. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/amdtp-am824.c')
-rw-r--r--sound/firewire/amdtp-am824.c71
1 files changed, 42 insertions, 29 deletions
diff --git a/sound/firewire/amdtp-am824.c b/sound/firewire/amdtp-am824.c
index 5d2952a1a9b2..67d735e9a6a4 100644
--- a/sound/firewire/amdtp-am824.c
+++ b/sound/firewire/amdtp-am824.c
@@ -345,45 +345,59 @@ static void read_midi_messages(struct amdtp_stream *s, __be32 *buffer,
}
}
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
- const struct pkt_desc *desc,
- struct snd_pcm_substream *pcm)
+static unsigned int process_it_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
struct amdtp_am824 *p = s->protocol;
unsigned int pcm_frames = 0;
+ int i;
- if (pcm) {
- write_pcm_s32(s, pcm, desc->ctx_payload, desc->data_blocks,
- pcm_frames);
- pcm_frames = desc->data_blocks * p->frame_multiplier;
- } else {
- write_pcm_silence(s, desc->ctx_payload, desc->data_blocks);
- }
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
- if (p->midi_ports) {
- write_midi_messages(s, desc->ctx_payload, desc->data_blocks,
- desc->data_block_counter);
+ if (pcm) {
+ write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks * p->frame_multiplier;
+ } else {
+ write_pcm_silence(s, buf, data_blocks);
+ }
+
+ if (p->midi_ports) {
+ write_midi_messages(s, buf, data_blocks,
+ desc->data_block_counter);
+ }
}
return pcm_frames;
}
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
- const struct pkt_desc *desc,
- struct snd_pcm_substream *pcm)
+static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
struct amdtp_am824 *p = s->protocol;
unsigned int pcm_frames = 0;
+ int i;
- if (pcm) {
- read_pcm_s32(s, pcm, desc->ctx_payload, desc->data_blocks,
- pcm_frames);
- pcm_frames = desc->data_blocks * p->frame_multiplier;
- }
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ read_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks * p->frame_multiplier;
+ }
- if (p->midi_ports) {
- read_midi_messages(s, desc->ctx_payload, desc->data_blocks,
- desc->data_block_counter);
+ if (p->midi_ports) {
+ read_midi_messages(s, buf, data_blocks,
+ desc->data_block_counter);
+ }
}
return pcm_frames;
@@ -400,15 +414,14 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir, enum cip_flags flags)
{
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
if (dir == AMDTP_IN_STREAM)
- process_data_blocks = process_tx_data_blocks;
+ process_ctx_payloads = process_ir_ctx_payloads;
else
- process_data_blocks = process_rx_data_blocks;
+ process_ctx_payloads = process_it_ctx_payloads;
return amdtp_stream_init(s, unit, dir, flags, CIP_FMT_AM,
- process_data_blocks,
- sizeof(struct amdtp_am824));
+ process_ctx_payloads, sizeof(struct amdtp_am824));
}
EXPORT_SYMBOL_GPL(amdtp_am824_init);