add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/sound/sh/aica.c
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@@ -1,27 +1,11 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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-* This code is licenced under 
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-* the General Public Licence
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-* version 2
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 *
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 * Copyright Adrian McMenamin 2005, 2006, 2007
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 * <adrian@mcmen.demon.co.uk>
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 * Requires firmware (BSD licenced) available from:
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 * http://linuxdc.cvs.sourceforge.net/linuxdc/linux-sh-dc/sound/oss/aica/firmware/
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 * or the maintainer
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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 version 2 of the GNU General Public License as published by
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-* the Free Software Foundation.
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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/init.h>
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@@ -379,23 +363,6 @@
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 	return 0;
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 }
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-static int snd_aicapcm_pcm_hw_free(struct snd_pcm_substream
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-				   *substream)
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-{
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-	/* Free the DMA buffer */
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-	return snd_pcm_lib_free_pages(substream);
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-}
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-
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-static int snd_aicapcm_pcm_hw_params(struct snd_pcm_substream
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-				     *substream, struct snd_pcm_hw_params
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-				     *hw_params)
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-{
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-	/* Allocate a DMA buffer using ALSA built-ins */
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-	return
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-	    snd_pcm_lib_malloc_pages(substream,
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-				     params_buffer_bytes(hw_params));
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-}
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-
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 static int snd_aicapcm_pcm_prepare(struct snd_pcm_substream
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 				   *substream)
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 {
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@@ -432,9 +399,6 @@
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 static const struct snd_pcm_ops snd_aicapcm_playback_ops = {
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 	.open = snd_aicapcm_pcm_open,
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 	.close = snd_aicapcm_pcm_close,
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-	.ioctl = snd_pcm_lib_ioctl,
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-	.hw_params = snd_aicapcm_pcm_hw_params,
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-	.hw_free = snd_aicapcm_pcm_hw_free,
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 	.prepare = snd_aicapcm_pcm_prepare,
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 	.trigger = snd_aicapcm_pcm_trigger,
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 	.pointer = snd_aicapcm_pcm_pointer,
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@@ -457,14 +421,12 @@
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 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
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 			&snd_aicapcm_playback_ops);
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 	/* Allocate the DMA buffers */
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-	err =
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-	    snd_pcm_lib_preallocate_pages_for_all(pcm,
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-						  SNDRV_DMA_TYPE_CONTINUOUS,
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-						  snd_dma_continuous_data
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-						  (GFP_KERNEL),
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-						  AICA_BUFFER_SIZE,
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-						  AICA_BUFFER_SIZE);
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-	return err;
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+	snd_pcm_set_managed_buffer_all(pcm,
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+				       SNDRV_DMA_TYPE_CONTINUOUS,
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+				       NULL,
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+				       AICA_BUFFER_SIZE,
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+				       AICA_BUFFER_SIZE);
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+	return 0;
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 }
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 /* Mixer controls */