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/hiface/pcm.c | 38 +++++++++-----------------------------
1 files changed, 9 insertions(+), 29 deletions(-)
diff --git a/kernel/sound/usb/hiface/pcm.c b/kernel/sound/usb/hiface/pcm.c
index a197fc3..d942179 100644
--- a/kernel/sound/usb/hiface/pcm.c
+++ b/kernel/sound/usb/hiface/pcm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Linux driver for M2Tech hiFace compatible devices
*
@@ -7,11 +8,6 @@
* Antonio Ospite <ao2@amarulasolutions.com>
*
* The driver is based on the work done in TerraTec DMX 6Fire USB
- *
- * 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 <linux/slab.h>
@@ -160,16 +156,14 @@
* This control message doesn't have any ack from the
* other side
*/
- ret = usb_control_msg(device, usb_sndctrlpipe(device, 0),
- HIFACE_SET_RATE_REQUEST,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
- rate_value, 0, NULL, 0, 100);
- if (ret < 0) {
+ ret = usb_control_msg_send(device, 0,
+ HIFACE_SET_RATE_REQUEST,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
+ rate_value, 0, NULL, 0, 100, GFP_KERNEL);
+ if (ret)
dev_err(&device->dev, "Error setting samplerate %d.\n", rate);
- return ret;
- }
- return 0;
+ return ret;
}
static struct pcm_substream *hiface_pcm_get_substream(struct snd_pcm_substream
@@ -419,18 +413,6 @@
return 0;
}
-static int hiface_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 hiface_pcm_hw_free(struct snd_pcm_substream *alsa_sub)
-{
- return snd_pcm_lib_free_vmalloc_buffer(alsa_sub);
-}
-
static int hiface_pcm_prepare(struct snd_pcm_substream *alsa_sub)
{
struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
@@ -516,13 +498,9 @@
static const struct snd_pcm_ops pcm_ops = {
.open = hiface_pcm_open,
.close = hiface_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = hiface_pcm_hw_params,
- .hw_free = hiface_pcm_hw_free,
.prepare = hiface_pcm_prepare,
.trigger = hiface_pcm_trigger,
.pointer = hiface_pcm_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
};
static int hiface_pcm_init_urb(struct pcm_urb *urb,
@@ -618,6 +596,8 @@
strlcpy(pcm->name, "USB-SPDIF Audio", sizeof(pcm->name));
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops);
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+ NULL, 0, 0);
rt->instance = pcm;
--
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