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author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2019-07-22 12:37:09 +0900 |
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committer | Takashi Iwai <tiwai@suse.de> | 2019-07-22 16:05:11 +0200 |
commit | 9a738ad1b1a64ef6d8271d8d42d715b75db6eb0d (patch) | |
tree | 5c98d0ef8615c5c01724ddbb0161089be9407a42 /sound/firewire/amdtp-am824.c | |
parent | 4731c672c930e490515f1747fb34d56d61ae57ac (diff) | |
download | linux-9a738ad1b1a64ef6d8271d8d42d715b75db6eb0d.tar.bz2 |
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.c | 71 |
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); |