From 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:46:07 +0000
Subject: [PATCH] add audio
---
kernel/sound/firewire/digi00x/amdtp-dot.c | 117 ++++++++++++++++++++++++++++++++++------------------------
1 files changed, 68 insertions(+), 49 deletions(-)
diff --git a/kernel/sound/firewire/digi00x/amdtp-dot.c b/kernel/sound/firewire/digi00x/amdtp-dot.c
index 4a884a3..d613642 100644
--- a/kernel/sound/firewire/digi00x/amdtp-dot.c
+++ b/kernel/sound/firewire/digi00x/amdtp-dot.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* amdtp-dot.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
* Copyright (C) 2012 Robin Gareus <robin@gareus.org>
* Copyright (C) 2012 Damien Zammit <damien@zamaudio.com>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <sound/pcm.h>
@@ -128,7 +127,7 @@
if (err < 0)
return err;
- s->fdf = AMDTP_FDF_AM824 | s->sfc;
+ s->ctx_data.rx.fdf = AMDTP_FDF_AM824 | s->sfc;
p->pcm_channels = pcm_channels;
@@ -144,17 +143,23 @@
}
static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
+ __be32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_dot *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
const u32 *src;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
src = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
buffer++;
for (i = 0; i < frames; ++i) {
@@ -170,17 +175,23 @@
}
static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
+ __be32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_dot *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
u32 *dst;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
dst = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
buffer++;
for (i = 0; i < frames; ++i) {
@@ -235,7 +246,7 @@
}
static void write_midi_messages(struct amdtp_stream *s, __be32 *buffer,
- unsigned int data_blocks)
+ unsigned int data_blocks, unsigned int data_block_counter)
{
struct amdtp_dot *p = s->protocol;
unsigned int f, port;
@@ -243,7 +254,7 @@
u8 *b;
for (f = 0; f < data_blocks; f++) {
- port = (s->data_block_counter + f) % 8;
+ port = (data_block_counter + f) % 8;
b = (u8 *)&buffer[0];
len = 0;
@@ -330,45 +341,53 @@
WRITE_ONCE(p->midi[port], midi);
}
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+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 snd_pcm_substream *pcm;
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- pcm = READ_ONCE(s->pcm);
- if (pcm) {
- read_pcm_s32(s, pcm, buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- pcm_frames = 0;
+ 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;
+ }
+
+ read_midi_messages(s, buf, data_blocks);
}
-
- read_midi_messages(s, buffer, data_blocks);
return pcm_frames;
}
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+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 snd_pcm_substream *pcm;
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- pcm = READ_ONCE(s->pcm);
- if (pcm) {
- write_pcm_s32(s, pcm, buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- write_pcm_silence(s, buffer, data_blocks);
- pcm_frames = 0;
+ 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) {
+ write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ } else {
+ write_pcm_silence(s, buf, data_blocks);
+ }
+
+ write_midi_messages(s, buf, data_blocks,
+ desc->data_block_counter);
}
-
- write_midi_messages(s, buffer, data_blocks);
return pcm_frames;
}
@@ -376,20 +395,20 @@
int amdtp_dot_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir)
{
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
enum cip_flags flags;
- /* Use different mode between incoming/outgoing. */
+ // Use different mode between incoming/outgoing.
if (dir == AMDTP_IN_STREAM) {
flags = CIP_NONBLOCKING;
- process_data_blocks = process_tx_data_blocks;
+ process_ctx_payloads = process_ir_ctx_payloads;
} else {
flags = CIP_BLOCKING;
- 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_dot));
+ process_ctx_payloads, sizeof(struct amdtp_dot));
}
void amdtp_dot_reset(struct amdtp_stream *s)
--
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