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

*

* Copyright(c) 2020 Intel Corporation. All rights reserved.

*

* Author: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>

*/

#ifndef __USER_TDFB_H__

#define __USER_TDFB_H__

#include <stdint.h>

#define SOF_TDFB_MAX_SIZE 4096 /* Max size for coef data in bytes */

#define SOF_TDFB_FIR_MAX_LENGTH 256 /* Max length for individual filter */

#define SOF_TDFB_FIR_MAX_COUNT 16 /* A blob can define max 8 FIR EQs */

#define SOF_TDFB_MAX_STREAMS 8 /* Support 1..8 sinks */

/*

* sof_tdfb_config data[]

* int16_t fir_filter1[length_filter1]; Multiple of 4 taps and 32 bit align

* int16_t fir_filter2[length_filter2]; Multiple of 4 taps and 32 bit align

* ...

* int16_t fir_filterN[length_filterN]; Multiple of 4 taps and 32 bit align

* int16_t input_channel_select[num_filters]; 0 = ch0, 1 = 1ch1, ..

* int16_t output_channel_mix[num_filters];

* int16_t output_stream_mix[num_filters];

*

*/

struct sof_tdfb_config {

uint32_t size; /* Size of entire struct */

uint16_t num_filters; /* Total number of filters */

uint16_t num_output_channels; /* Total number of output channels */

uint16_t num_output_streams; /* one source, N output sinks */

uint16_t reserved16; /* To keep data 32 bit aligned */

/* reserved */

uint32_t reserved32[4]; /* For future */

int16_t data[];

} __attribute__((packed));

#endif /* __USER_TDFB_H__ */