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/usb/6fire/pcm.c | 30 ++----------------------------
1 files changed, 2 insertions(+), 28 deletions(-)
diff --git a/kernel/sound/usb/6fire/pcm.c b/kernel/sound/usb/6fire/pcm.c
index f8ef3e2..7168f1c 100644
--- a/kernel/sound/usb/6fire/pcm.c
+++ b/kernel/sound/usb/6fire/pcm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Linux driver for TerraTec DMX 6Fire USB
*
@@ -6,11 +7,6 @@
* Author: Torsten Schenk <torsten.schenk@zoho.com>
* Created: Jan 01, 2011
* Copyright: (C) Torsten Schenk
- *
- * 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.
*/
#include "pcm.h"
@@ -450,18 +446,6 @@
return 0;
}
-static int usb6fire_pcm_hw_params(struct snd_pcm_substream *alsa_sub,
- struct snd_pcm_hw_params *hw_params)
-{
- return snd_pcm_lib_alloc_vmalloc_buffer(alsa_sub,
- params_buffer_bytes(hw_params));
-}
-
-static int usb6fire_pcm_hw_free(struct snd_pcm_substream *alsa_sub)
-{
- return snd_pcm_lib_free_vmalloc_buffer(alsa_sub);
-}
-
static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub)
{
struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
@@ -558,13 +542,9 @@
static const struct snd_pcm_ops pcm_ops = {
.open = usb6fire_pcm_open,
.close = usb6fire_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = usb6fire_pcm_hw_params,
- .hw_free = usb6fire_pcm_hw_free,
.prepare = usb6fire_pcm_prepare,
.trigger = usb6fire_pcm_trigger,
.pointer = usb6fire_pcm_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
};
static void usb6fire_pcm_init_urb(struct pcm_urb *urb,
@@ -663,14 +643,8 @@
strcpy(pcm->name, "DMX 6Fire USB");
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_ops);
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
- if (ret) {
- usb6fire_pcm_buffers_destroy(rt);
- kfree(rt);
- dev_err(&chip->dev->dev,
- "error preallocating pcm buffers.\n");
- return ret;
- }
rt->instance = pcm;
chip->pcm = rt;
--
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