add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/sound/core/pcm_local.h
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@@ -1,9 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * pcm_local.h - a local header file for snd-pcm module.
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  *
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  * Copyright (c) Takashi Sakamoto <o-takashi@sakamocchi.jp>
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- *
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- * Licensed under the terms of the GNU General Public License, version 2.
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  */
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 #ifndef __SOUND_CORE_PCM_LOCAL_H
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@@ -20,9 +19,6 @@
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 			  unsigned int k, struct snd_interval *c);
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 void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k,
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 			  const struct snd_interval *b, struct snd_interval *c);
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-
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-int snd_pcm_hw_constraints_init(struct snd_pcm_substream *substream);
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-int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream);
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 int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime,
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 			       snd_pcm_hw_param_t var, u_int32_t mask);
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@@ -66,5 +62,14 @@
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 #endif
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 void __snd_pcm_xrun(struct snd_pcm_substream *substream);
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+void snd_pcm_group_init(struct snd_pcm_group *group);
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+void snd_pcm_sync_stop(struct snd_pcm_substream *substream, bool sync_irq);
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+
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+#ifdef CONFIG_SND_DMA_SGBUF
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+struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream,
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+				    unsigned long offset);
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+#endif
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+
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+#define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime)
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 #endif	/* __SOUND_CORE_PCM_LOCAL_H */