50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/*
|
|
* Copyright (c) 2018 STMicroelectronics
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#ifndef MPXXDTYY_H
|
|
#define MPXXDTYY_H
|
|
|
|
#include <zephyr/audio/dmic.h>
|
|
#include <zephyr/kernel.h>
|
|
#include <zephyr/device.h>
|
|
#include "OpenPDMFilter.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define MPXXDTYY_MIN_PDM_FREQ 1200000 /* 1.2MHz */
|
|
#define MPXXDTYY_MAX_PDM_FREQ 3250000 /* 3.25MHz */
|
|
|
|
struct mpxxdtyy_config {
|
|
const struct device *comm_master;
|
|
};
|
|
|
|
struct mpxxdtyy_data {
|
|
enum dmic_state state;
|
|
TPDMFilter_InitStruct pdm_filter[2];
|
|
size_t pcm_mem_size;
|
|
struct k_mem_slab *pcm_mem_slab;
|
|
};
|
|
|
|
uint16_t sw_filter_lib_init(const struct device *dev, struct dmic_cfg *cfg);
|
|
int sw_filter_lib_run(TPDMFilter_InitStruct *pdm_filter,
|
|
void *pdm_block, void *pcm_block,
|
|
size_t pdm_size, size_t pcm_size);
|
|
|
|
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2s)
|
|
int mpxxdtyy_i2s_read(const struct device *dev, uint8_t stream, void **buffer,
|
|
size_t *size, int32_t timeout);
|
|
int mpxxdtyy_i2s_trigger(const struct device *dev, enum dmic_trigger cmd);
|
|
int mpxxdtyy_i2s_configure(const struct device *dev, struct dmic_cfg *cfg);
|
|
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2s) */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* MPXXDTYY_H */
|