2018-11-13 10:13:19 +01:00
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/*
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* Copyright (c) 2018 STMicroelectronics
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef MPXXDTYY_H
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#define MPXXDTYY_H
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2022-05-06 10:25:46 +02:00
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#include <zephyr/audio/dmic.h>
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includes: prefer <zephyr/kernel.h> over <zephyr/zephyr.h>
As of today <zephyr/zephyr.h> is 100% equivalent to <zephyr/kernel.h>.
This patch proposes to then include <zephyr/kernel.h> instead of
<zephyr/zephyr.h> since it is more clear that you are including the
Kernel APIs and (probably) nothing else. <zephyr/zephyr.h> sounds like a
catch-all header that may be confusing. Most applications need to
include a bunch of other things to compile, e.g. driver headers or
subsystem headers like BT, logging, etc.
The idea of a catch-all header in Zephyr is probably not feasible
anyway. Reason is that Zephyr is not a library, like it could be for
example `libpython`. Zephyr provides many utilities nowadays: a kernel,
drivers, subsystems, etc and things will likely grow. A catch-all header
would be massive, difficult to keep up-to-date. It is also likely that
an application will only build a small subset. Note that subsystem-level
headers may use a catch-all approach to make things easier, though.
NOTE: This patch is **NOT** removing the header, just removing its usage
in-tree. I'd advocate for its deprecation (add a #warning on it), but I
understand many people will have concerns.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-08-25 09:58:46 +02:00
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#include <zephyr/kernel.h>
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2022-05-06 10:25:46 +02:00
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#include <zephyr/device.h>
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2018-11-13 10:13:19 +01:00
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#include "OpenPDMFilter.h"
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2019-08-12 19:54:23 +02:00
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#ifdef __cplusplus
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extern "C" {
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#endif
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2018-11-13 10:13:19 +01:00
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#define MPXXDTYY_MIN_PDM_FREQ 1200000 /* 1.2MHz */
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#define MPXXDTYY_MAX_PDM_FREQ 3250000 /* 3.25MHz */
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2022-01-27 12:43:37 +01:00
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struct mpxxdtyy_config {
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2020-04-30 20:33:38 +02:00
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const struct device *comm_master;
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2022-01-27 12:43:37 +01:00
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};
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struct mpxxdtyy_data {
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2018-11-13 10:13:19 +01:00
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enum dmic_state state;
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2019-03-22 14:47:56 +01:00
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TPDMFilter_InitStruct pdm_filter[2];
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2018-11-13 10:13:19 +01:00
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size_t pcm_mem_size;
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struct k_mem_slab *pcm_mem_slab;
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};
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2020-04-30 20:33:38 +02:00
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uint16_t sw_filter_lib_init(const struct device *dev, struct dmic_cfg *cfg);
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2018-11-13 10:13:19 +01:00
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int sw_filter_lib_run(TPDMFilter_InitStruct *pdm_filter,
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void *pdm_block, void *pcm_block,
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size_t pdm_size, size_t pcm_size);
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2020-05-06 20:23:07 +02:00
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2s)
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2020-04-30 20:33:38 +02:00
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int mpxxdtyy_i2s_read(const struct device *dev, uint8_t stream, void **buffer,
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2020-05-27 18:26:57 +02:00
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size_t *size, int32_t timeout);
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2020-04-30 20:33:38 +02:00
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int mpxxdtyy_i2s_trigger(const struct device *dev, enum dmic_trigger cmd);
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int mpxxdtyy_i2s_configure(const struct device *dev, struct dmic_cfg *cfg);
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2020-05-06 20:23:07 +02:00
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#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2s) */
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2018-11-13 10:13:19 +01:00
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#ifdef __cplusplus
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}
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#endif
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#endif /* MPXXDTYY_H */
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