/* SPDX-License-Identifier: BSD-3-Clause

*

* Copyright(c) 2019 Intel Corporation. All rights reserved.

*

* Author: Janusz Jankowski <janusz.jankowski@linux.intel.com>

*/

#ifndef __SOF_AUDIO_MIXER_H__

#define __SOF_AUDIO_MIXER_H__

#include <sof/audio/buffer.h>

#include <sof/audio/component.h>

#include <sof/audio/format.h>

#include <sof/platform.h>

#include <stddef.h>

#include <stdint.h>

#ifdef UNIT_TEST

void sys_comp_module_mixer_interface_init(void);

#endif

#define MIXER_GENERIC

#if defined(__XCC__)

#include <xtensa/config/core-isa.h>

#if XCHAL_HAVE_HIFI3 || XCHAL_HAVE_HIFI4

#undef MIXER_GENERIC

#endif

#endif

#define MIXER_MAX_SOURCES 2

/* mixer component private data */

struct mixer_data {

void (*mix_func)(struct comp_dev *dev, struct audio_stream *sink,

const struct audio_stream **sources, uint32_t count,

uint32_t frames);

};

/**

* \brief mixer processing function interface

*/

typedef void (*mixer_func)(struct comp_dev *dev, struct audio_stream *sink,

const struct audio_stream **sources, uint32_t num_sources,

uint32_t frames);

/** \brief Volume processing functions map. */

struct mixer_func_map {

enum sof_ipc_frame frame_fmt; /**< frame format */

mixer_func func; /**< volume processing function */

};

/** \brief Map of formats with dedicated processing functions. */

extern const struct mixer_func_map mixer_func_map[];

/** \brief Number of processing functions. */

extern const size_t mixer_func_count;

/**

* \brief Retrievies mixer processing function.

* \param[in,out] dev Mixer base component device.

* \param[in] sinkb Sink buffer to match against

*/

static inline mixer_func mixer_get_processing_function(struct comp_dev *dev,

struct comp_buffer *sinkb)

{

int i;

/* map the volume function for source and sink buffers */

for (i = 0; i < mixer_func_count; i++) {

if (audio_stream_get_frm_fmt(&sinkb->stream) != mixer_func_map[i].frame_fmt)

continue;

return mixer_func_map[i].func;

}

return NULL;

}

#endif /* __SOF_AUDIO_MIXER_H__ */