pulse_meas.h

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/*
 * Copyright (c) 2026 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
#ifndef PULSE_MEAS_H
#define PULSE_MEAS_H
 
#include <zephyr/types.h>
#include <zephyr/device.h>
#include <hal/nrf_gpio.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define PULSE_MEAS_BLOCK_HEADER_SIZE sizeof(void *)
 
#define PULSE_MEAS_BLOCK_SIZE(num_meas)                                                        \
        (PULSE_MEAS_BLOCK_HEADER_SIZE + (num_meas) * sizeof(uint32_t))
 
typedef enum {
        PULSE_MEAS_PULSE_POSITIVE,
        PULSE_MEAS_PULSE_NEGATIVE,
} pulse_meas_pulse_t;
 
typedef enum {
        PULSE_MEAS_MODE_ONE_SHOT,
        PULSE_MEAS_MODE_CONTINUOUS,
} pulse_meas_mode_t;
 
struct pulse_meas_config {
        uint32_t num_of_meas;
        pulse_meas_pulse_t pulse_type;
        pulse_meas_mode_t mode;
        nrf_gpio_pin_pull_t pull_config;
        void (*user_handler)(void *context);
        void *user_context;
};
 
int pulse_meas_configure(const struct device *dev, const struct pulse_meas_config *cfg);
 
int pulse_meas_start(const struct device *dev, struct k_mem_slab *slab);
 
int pulse_meas_stop(const struct device *dev, bool immediate);
 
int pulse_meas_get(const struct device *dev, uint32_t **data);
 
void pulse_meas_put(const struct device *dev, uint32_t *data);
 
uint32_t pulse_meas_pending(const struct device *dev);
 
#ifdef __cplusplus
}
#endif
 
#endif /* PULSE_MEAS_H */