linux/sound/soc/amd/acp/acp-pdm.c

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2022 Advanced Micro Devices, Inc.
//
// Authors: Ajit Kumar Pandey <[email protected]>
//	    Vijendar Mukunda <[email protected]>
//

/*
 * Generic Hardware interface for ACP Audio PDM controller
 */

#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>

#include "amd.h"

#define DRV_NAME …

static int acp_dmic_prepare(struct snd_pcm_substream *substream,
			    struct snd_soc_dai *dai)
{ … }

static int acp_dmic_dai_trigger(struct snd_pcm_substream *substream,
				int cmd, struct snd_soc_dai *dai)
{ … }

static int acp_dmic_hwparams(struct snd_pcm_substream *substream,
			     struct snd_pcm_hw_params *hwparams, struct snd_soc_dai *dai)
{ … }

static int acp_dmic_dai_startup(struct snd_pcm_substream *substream,
				struct snd_soc_dai *dai)
{ … }

static void acp_dmic_dai_shutdown(struct snd_pcm_substream *substream,
				  struct snd_soc_dai *dai)
{ … }

const struct snd_soc_dai_ops acp_dmic_dai_ops = …;
EXPORT_SYMBOL_NS_GPL(…);

MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…);