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/drivers/mts64.c | 37 +++++++++++++------------------------
1 files changed, 13 insertions(+), 24 deletions(-)
diff --git a/kernel/sound/drivers/mts64.c b/kernel/sound/drivers/mts64.c
index b68e71c..2573149 100644
--- a/kernel/sound/drivers/mts64.c
+++ b/kernel/sound/drivers/mts64.c
@@ -1,21 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ALSA Driver for Ego Systems Inc. (ESI) Miditerminal 4140
* Copyright (c) 2006 by Matthias König <mk@phasorlab.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
*/
#include <linux/init.h>
@@ -275,7 +261,7 @@
*/
static u8 mts64_map_midi_input(u8 c)
{
- static u8 map[] = { 0, 1, 4, 2, 3 };
+ static const u8 map[] = { 0, 1, 4, 2, 3 };
return map[c];
}
@@ -367,7 +353,7 @@
u8 seconds, u8 frames,
u8 idx)
{
- static u8 fps[5] = { MTS64_CMD_SMPTE_FPS_24,
+ static const u8 fps[5] = { MTS64_CMD_SMPTE_FPS_24,
MTS64_CMD_SMPTE_FPS_25,
MTS64_CMD_SMPTE_FPS_2997,
MTS64_CMD_SMPTE_FPS_30D,
@@ -481,7 +467,7 @@
return changed;
}
-static struct snd_kcontrol_new mts64_ctl_smpte_switch = {
+static const struct snd_kcontrol_new mts64_ctl_smpte_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
.name = "SMPTE Playback Switch",
.index = 0,
@@ -554,7 +540,7 @@
return changed;
}
-static struct snd_kcontrol_new mts64_ctl_smpte_time_hours = {
+static const struct snd_kcontrol_new mts64_ctl_smpte_time_hours = {
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
.name = "SMPTE Time Hours",
.index = 0,
@@ -565,7 +551,7 @@
.put = snd_mts64_ctl_smpte_time_put
};
-static struct snd_kcontrol_new mts64_ctl_smpte_time_minutes = {
+static const struct snd_kcontrol_new mts64_ctl_smpte_time_minutes = {
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
.name = "SMPTE Time Minutes",
.index = 0,
@@ -576,7 +562,7 @@
.put = snd_mts64_ctl_smpte_time_put
};
-static struct snd_kcontrol_new mts64_ctl_smpte_time_seconds = {
+static const struct snd_kcontrol_new mts64_ctl_smpte_time_seconds = {
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
.name = "SMPTE Time Seconds",
.index = 0,
@@ -587,7 +573,7 @@
.put = snd_mts64_ctl_smpte_time_put
};
-static struct snd_kcontrol_new mts64_ctl_smpte_time_frames = {
+static const struct snd_kcontrol_new mts64_ctl_smpte_time_frames = {
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
.name = "SMPTE Time Frames",
.index = 0,
@@ -639,7 +625,7 @@
return changed;
}
-static struct snd_kcontrol_new mts64_ctl_smpte_fps = {
+static const struct snd_kcontrol_new mts64_ctl_smpte_fps = {
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
.name = "SMPTE Fps",
.index = 0,
@@ -655,7 +641,7 @@
struct mts64 *mts)
{
int err, i;
- static struct snd_kcontrol_new *control[] = {
+ static const struct snd_kcontrol_new *control[] = {
&mts64_ctl_smpte_switch,
&mts64_ctl_smpte_time_hours,
&mts64_ctl_smpte_time_minutes,
@@ -830,6 +816,9 @@
u8 status, data;
struct snd_rawmidi_substream *substream;
+ if (!mts)
+ return;
+
spin_lock(&mts->lock);
ret = mts64_read(mts->pardev->port);
data = ret & 0x00ff;
--
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