修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/sound/isa/sb/sb16_main.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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  *  Routines for control of 16-bit SoundBlaster cards and clones
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@@ -15,22 +16,6 @@
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  *        16bit DMA transfers from DSP chip (capture) until 8bit transfer
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  *        to DSP chip (playback) starts. This bug can be avoided with
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  *        "16bit DMA Allocation" setting set to Playback or Capture.
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- *
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- *
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- *   This program is free software; you can redistribute it and/or modify
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- *   it under the terms of the GNU General Public License as published by
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- *   the Free Software Foundation; either version 2 of the License, or
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- *   (at your option) any later version.
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- *
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- *   This program is distributed in the hope that it will be useful,
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- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *   GNU General Public License for more details.
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- *
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- *   You should have received a copy of the GNU General Public License
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- *   along with this program; if not, write to the Free Software
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- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
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- *
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  */
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 #include <linux/io.h>
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@@ -245,18 +230,6 @@
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 		snd_sbdsp_command(chip, rate & 0xff);
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 	}
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 	spin_unlock_irqrestore(&chip->reg_lock, flags);
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-}
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-
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-static int snd_sb16_hw_params(struct snd_pcm_substream *substream,
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-			      struct snd_pcm_hw_params *hw_params)
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-{
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-	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
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-}
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-
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-static int snd_sb16_hw_free(struct snd_pcm_substream *substream)
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-{
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-	snd_pcm_lib_free_pages(substream);
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-	return 0;
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 }
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 static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
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@@ -844,9 +817,6 @@
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 static const struct snd_pcm_ops snd_sb16_playback_ops = {
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 	.open =		snd_sb16_playback_open,
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 	.close =	snd_sb16_playback_close,
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-	.ioctl =	snd_pcm_lib_ioctl,
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-	.hw_params =	snd_sb16_hw_params,
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-	.hw_free =	snd_sb16_hw_free,
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 	.prepare =	snd_sb16_playback_prepare,
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 	.trigger =	snd_sb16_playback_trigger,
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 	.pointer =	snd_sb16_playback_pointer,
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@@ -855,9 +825,6 @@
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 static const struct snd_pcm_ops snd_sb16_capture_ops = {
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 	.open =		snd_sb16_capture_open,
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 	.close =	snd_sb16_capture_close,
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-	.ioctl =	snd_pcm_lib_ioctl,
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-	.hw_params =	snd_sb16_hw_params,
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-	.hw_free =	snd_sb16_hw_free,
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 	.prepare =	snd_sb16_capture_prepare,
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 	.trigger =	snd_sb16_capture_trigger,
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 	.pointer =	snd_sb16_capture_pointer,
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@@ -884,9 +851,8 @@
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 	else
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 		pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
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-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
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-					      snd_dma_isa_data(),
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-					      64*1024, 128*1024);
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+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
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+				       card->dev, 64*1024, 128*1024);
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 	return 0;
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 }
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