linux/sound/soc/amd/acp/acp-platform.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) 2021 Advanced Micro Devices, Inc.
//
// Authors: Ajit Kumar Pandey <[email protected]>

/*
 * Generic interface for ACP audio blck PCM component
 */

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

#include "amd.h"
#include "../mach-config.h"
#include "acp-mach.h"

#define DRV_NAME …

static const struct snd_pcm_hardware acp_pcm_hardware_playback = …;

static const struct snd_pcm_hardware acp_pcm_hardware_capture = …;

int acp_machine_select(struct acp_dev_data *adata)
{ … }
EXPORT_SYMBOL_NS_GPL(…);

static irqreturn_t i2s_irq_handler(int irq, void *data)
{ … }

void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream *stream)
{ … }
EXPORT_SYMBOL_NS_GPL(…);

void config_acp_dma(struct acp_dev_data *adata, struct acp_stream *stream, int size)
{ … }
EXPORT_SYMBOL_NS_GPL(…);

static int acp_dma_open(struct snd_soc_component *component, struct snd_pcm_substream *substream)
{ … }

static int acp_dma_hw_params(struct snd_soc_component *component,
			     struct snd_pcm_substream *substream,
			     struct snd_pcm_hw_params *params)
{ … }

static snd_pcm_uframes_t acp_dma_pointer(struct snd_soc_component *component,
					 struct snd_pcm_substream *substream)
{ … }

static int acp_dma_new(struct snd_soc_component *component,
		       struct snd_soc_pcm_runtime *rtd)
{ … }

static int acp_dma_close(struct snd_soc_component *component,
			 struct snd_pcm_substream *substream)
{ … }

static const struct snd_soc_component_driver acp_pcm_component = …;

int acp_platform_register(struct device *dev)
{ … }
EXPORT_SYMBOL_NS_GPL(…);

int acp_platform_unregister(struct device *dev)
{ … }
EXPORT_SYMBOL_NS_GPL(…);

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