From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/sound/firewire/fireface/amdtp-ff.c | 104 ++++++++++++++++++++++++++++++---------------------
1 files changed, 61 insertions(+), 43 deletions(-)
diff --git a/kernel/sound/firewire/fireface/amdtp-ff.c b/kernel/sound/firewire/fireface/amdtp-ff.c
index 77c7598..119c007 100644
--- a/kernel/sound/firewire/fireface/amdtp-ff.c
+++ b/kernel/sound/firewire/fireface/amdtp-ff.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* amdtp-ff.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <sound/pcm.h>
@@ -28,19 +27,24 @@
return amdtp_stream_set_parameters(s, rate, data_channels);
}
-static void write_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __le32 *buffer, unsigned int frames)
+static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __le32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_ff *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;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -53,19 +57,24 @@
}
}
-static void read_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __le32 *buffer, unsigned int frames)
+static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __le32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_ff *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;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -103,38 +112,47 @@
return amdtp_stream_add_pcm_hw_constraints(s, runtime);
}
-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 = READ_ONCE(s->pcm);
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- if (pcm) {
- write_pcm_s32(s, pcm, (__le32 *)buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- write_pcm_silence(s, (__le32 *)buffer, data_blocks);
- pcm_frames = 0;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __le32 *buf = (__le32 *)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);
+ }
}
return pcm_frames;
}
-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 = READ_ONCE(s->pcm);
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- if (pcm) {
- read_pcm_s32(s, pcm, (__le32 *)buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- pcm_frames = 0;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __le32 *buf = (__le32 *)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;
+ }
}
return pcm_frames;
@@ -143,13 +161,13 @@
int amdtp_ff_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;
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, CIP_NO_HEADER, 0,
- process_data_blocks, sizeof(struct amdtp_ff));
+ process_ctx_payloads, sizeof(struct amdtp_ff));
}
--
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