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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/soc/meson/aiu-fifo.h
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/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */

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/*

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 * Copyright (c) 2020 BayLibre, SAS.

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 * Author: Jerome Brunet <[email protected]>

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 */

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#ifndef _MESON_AIU_FIFO_H

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#define _MESON_AIU_FIFO_H

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struct snd_pcm_hardware;

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struct snd_soc_component_driver;

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struct snd_soc_dai_driver;

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struct clk;

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struct snd_pcm_ops;

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struct snd_pcm_substream;

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struct snd_soc_dai;

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struct snd_pcm_hw_params;

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struct platform_device;

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struct aiu_fifo {

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	const struct snd_pcm_hardware *pcm;

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	unsigned int mem_offset;

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	unsigned int fifo_block;

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	struct clk *pclk;

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	int irq;

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};

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int aiu_fifo_dai_probe(struct snd_soc_dai *dai);

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int aiu_fifo_dai_remove(struct snd_soc_dai *dai);

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snd_pcm_uframes_t aiu_fifo_pointer(struct snd_soc_component *component,

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				   struct snd_pcm_substream *substream);

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int aiu_fifo_trigger(struct snd_pcm_substream *substream, int cmd,

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		     struct snd_soc_dai *dai);

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int aiu_fifo_prepare(struct snd_pcm_substream *substream,

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		     struct snd_soc_dai *dai);

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int aiu_fifo_hw_params(struct snd_pcm_substream *substream,

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		       struct snd_pcm_hw_params *params,

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		       struct snd_soc_dai *dai);

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int aiu_fifo_startup(struct snd_pcm_substream *substream,

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		     struct snd_soc_dai *dai);

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void aiu_fifo_shutdown(struct snd_pcm_substream *substream,

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		       struct snd_soc_dai *dai);

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int aiu_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd,

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		     struct snd_soc_dai *dai);

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#endif /* _MESON_AIU_FIFO_H */

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