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/fireworks/fireworks_midi.c | 59 +++++++++++++++--------------------------------------------
1 files changed, 15 insertions(+), 44 deletions(-)
diff --git a/kernel/sound/firewire/fireworks/fireworks_midi.c b/kernel/sound/firewire/fireworks/fireworks_midi.c
index f5da2cd..84621e3 100644
--- a/kernel/sound/firewire/fireworks/fireworks_midi.c
+++ b/kernel/sound/firewire/fireworks/fireworks_midi.c
@@ -1,14 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks_midi.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2009-2010 Clemens Ladisch
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "fireworks.h"
-static int midi_capture_open(struct snd_rawmidi_substream *substream)
+static int midi_open(struct snd_rawmidi_substream *substream)
{
struct snd_efw *efw = substream->rmidi->private_data;
int err;
@@ -18,28 +17,13 @@
goto end;
mutex_lock(&efw->mutex);
- efw->capture_substreams++;
- err = snd_efw_stream_start_duplex(efw, 0);
- mutex_unlock(&efw->mutex);
- if (err < 0)
- snd_efw_stream_lock_release(efw);
-
-end:
- return err;
-}
-
-static int midi_playback_open(struct snd_rawmidi_substream *substream)
-{
- struct snd_efw *efw = substream->rmidi->private_data;
- int err;
-
- err = snd_efw_stream_lock_try(efw);
- if (err < 0)
- goto end;
-
- mutex_lock(&efw->mutex);
- efw->playback_substreams++;
- err = snd_efw_stream_start_duplex(efw, 0);
+ err = snd_efw_stream_reserve_duplex(efw, 0, 0, 0);
+ if (err >= 0) {
+ ++efw->substreams_counter;
+ err = snd_efw_stream_start_duplex(efw);
+ if (err < 0)
+ --efw->substreams_counter;
+ }
mutex_unlock(&efw->mutex);
if (err < 0)
snd_efw_stream_lock_release(efw);
@@ -47,25 +31,12 @@
return err;
}
-static int midi_capture_close(struct snd_rawmidi_substream *substream)
+static int midi_close(struct snd_rawmidi_substream *substream)
{
struct snd_efw *efw = substream->rmidi->private_data;
mutex_lock(&efw->mutex);
- efw->capture_substreams--;
- snd_efw_stream_stop_duplex(efw);
- mutex_unlock(&efw->mutex);
-
- snd_efw_stream_lock_release(efw);
- return 0;
-}
-
-static int midi_playback_close(struct snd_rawmidi_substream *substream)
-{
- struct snd_efw *efw = substream->rmidi->private_data;
-
- mutex_lock(&efw->mutex);
- efw->playback_substreams--;
+ --efw->substreams_counter;
snd_efw_stream_stop_duplex(efw);
mutex_unlock(&efw->mutex);
@@ -121,13 +92,13 @@
int snd_efw_create_midi_devices(struct snd_efw *efw)
{
static const struct snd_rawmidi_ops capture_ops = {
- .open = midi_capture_open,
- .close = midi_capture_close,
+ .open = midi_open,
+ .close = midi_close,
.trigger = midi_capture_trigger,
};
static const struct snd_rawmidi_ops playback_ops = {
- .open = midi_playback_open,
- .close = midi_playback_close,
+ .open = midi_open,
+ .close = midi_close,
.trigger = midi_playback_trigger,
};
struct snd_rawmidi *rmidi;
--
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