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/isa/gus/gus_pcm.c | 47 ++++++++++-------------------------------------
1 files changed, 10 insertions(+), 37 deletions(-)
diff --git a/kernel/sound/isa/gus/gus_pcm.c b/kernel/sound/isa/gus/gus_pcm.c
index 131b289..aca4ab9 100644
--- a/kernel/sound/isa/gus/gus_pcm.c
+++ b/kernel/sound/isa/gus/gus_pcm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Routines for control of GF1 chip (PCM things)
@@ -7,22 +8,6 @@
*
* This code emulates autoinit DMA transfer for playback, recording by GF1
* chip doesn't support autoinit DMA.
- *
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <asm/dma.h>
@@ -438,11 +423,8 @@
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct gus_pcm_private *pcmp = runtime->private_data;
- int err;
-
- if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
- return err;
- if (err > 0) { /* change */
+
+ if (runtime->buffer_changed) {
struct snd_gf1_mem_block *block;
if (pcmp->memory > 0) {
snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory);
@@ -486,7 +468,6 @@
struct snd_pcm_runtime *runtime = substream->runtime;
struct gus_pcm_private *pcmp = runtime->private_data;
- snd_pcm_lib_free_pages(substream);
if (pcmp->pvoices[0]) {
snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]);
pcmp->pvoices[0] = NULL;
@@ -589,12 +570,7 @@
gus->gf1.pcm_rcntrl_reg |= 4;
if (snd_pcm_format_unsigned(params_format(hw_params)))
gus->gf1.pcm_rcntrl_reg |= 0x80;
- return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-}
-
-static int snd_gf1_pcm_capture_hw_free(struct snd_pcm_substream *substream)
-{
- return snd_pcm_lib_free_pages(substream);
+ return 0;
}
static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -845,7 +821,6 @@
static const struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
.open = snd_gf1_pcm_playback_open,
.close = snd_gf1_pcm_playback_close,
- .ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_gf1_pcm_playback_hw_params,
.hw_free = snd_gf1_pcm_playback_hw_free,
.prepare = snd_gf1_pcm_playback_prepare,
@@ -859,9 +834,7 @@
static const struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
.open = snd_gf1_pcm_capture_open,
.close = snd_gf1_pcm_capture_close,
- .ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_gf1_pcm_capture_hw_params,
- .hw_free = snd_gf1_pcm_capture_hw_free,
.prepare = snd_gf1_pcm_capture_prepare,
.trigger = snd_gf1_pcm_capture_trigger,
.pointer = snd_gf1_pcm_capture_pointer,
@@ -890,9 +863,9 @@
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
- snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
- snd_dma_isa_data(),
- 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
+ snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
+ card->dev,
+ 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
pcm->info_flags = 0;
pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
@@ -900,9 +873,9 @@
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops);
if (gus->gf1.dma2 == gus->gf1.dma1)
pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
- snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
- SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),
- 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024);
+ snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
+ SNDRV_DMA_TYPE_DEV, card->dev,
+ 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024);
}
strcpy(pcm->name, pcm->id);
if (gus->interwave) {
--
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