saadct.h

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/*
 * Copyright (c) 2026 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
#ifndef SAADCT_H
#define SAADCT_H
 
#include <zephyr/kernel.h>
#include <zephyr/types.h>
#include <zephyr/device.h>
#include <nrfx_saadc.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define SAADCT_MEAS_BLOCK_HEADER_SIZE sizeof(void *)
 
#define SAADCT_MEAS_BLOCK_SIZE(num_meas, num_channels)                                         \
        (SAADCT_MEAS_BLOCK_HEADER_SIZE + (num_meas) * (num_channels) * sizeof(nrf_saadc_value_t))
 
typedef enum {
        saadct_mode_one_shot,
        saadct_mode_continuous,
} saadct_mode_t;
 
struct saadct_config {
        uint32_t num_of_meas;
        uint8_t num_of_channels;
        nrf_saadc_resolution_t resolution;
        saadct_mode_t mode;
        uint32_t sample_rate_hz;
        void (*user_handler)(void *context);
        void *user_context;
        nrfx_saadc_channel_t const *channels_config;
};
 
int saadct_configure(const struct device *dev, const struct saadct_config *cfg);
 
int saadct_start(const struct device *dev, struct k_mem_slab *slab);
 
int saadct_stop(const struct device *dev, bool immediate);
 
int saadct_get(const struct device *dev, nrf_saadc_value_t **data, k_timeout_t timeout);
 
void saadct_put(const struct device *dev, nrf_saadc_value_t *data);
 
uint32_t saadct_pending(const struct device *dev);
 
#ifdef __cplusplus
}
#endif
 
#endif /* SAADCT_H */