sm_pwm_01c.h

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/*
 * Copyright (C) 2021 Inria
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <inttypes.h>
 
#include "timex.h"
#include "ztimer.h"
#include "periph/gpio.h"
 
#ifdef __cplusplus
extern "C" {
#endif


#ifndef CONFIG_SM_PWM_01C_SAMPLE_TIME
#define CONFIG_SM_PWM_01C_SAMPLE_TIME           (100 * US_PER_MS)
#endif

#ifndef CONFIG_SM_PWM_01C_WINDOW_TIME
#define CONFIG_SM_PWM_01C_WINDOW_TIME           (10 * US_PER_SEC)
#endif
 
#if defined(MODULE_SM_PWM_01C_MA) || defined(DOXYGEN)
#define SM_PWM_01C_BUFFER_LEN    (CONFIG_SM_PWM_01C_WINDOW_TIME / \
                                  CONFIG_SM_PWM_01C_SAMPLE_TIME)
#else

#ifndef CONFIG_SM_PWM_01C_EXP_WEIGHT
#define CONFIG_SM_PWM_01C_EXP_WEIGHT            (5)
#endif
#endif

 
#if defined(MODULE_SM_PWM_01C_MA) || defined(DOXYGEN)
typedef struct {
    uint16_t buf[SM_PWM_01C_BUFFER_LEN];    
    size_t head;                            
} circ_buf_t;
#endif

typedef struct {
    gpio_t tsp_pin;     
    gpio_t tlp_pin;     
} sm_pwm_01c_params_t;

typedef struct {
    uint16_t mc_pm_2p5;         
    uint16_t mc_pm_10;          
} sm_pwm_01c_data_t;

typedef struct {
    uint32_t tsp_lpo;           
    uint32_t tlp_lpo;           
    uint32_t tlp_start_time;    
    uint32_t tsp_start_time;    
#ifdef MODULE_SM_PWM_01C_MA
    circ_buf_t tsp_circ_buf;    
    circ_buf_t tlp_circ_buf;    
#else
    sm_pwm_01c_data_t data;     
#endif
} sm_pwm_01c_values_t;

typedef struct {
    sm_pwm_01c_params_t params;     
    sm_pwm_01c_values_t _values;    
    ztimer_t _sampler;              
} sm_pwm_01c_t;

int sm_pwm_01c_init(sm_pwm_01c_t *dev, const sm_pwm_01c_params_t *params);

void sm_pwm_01c_start(sm_pwm_01c_t *dev);

void sm_pwm_01c_stop(sm_pwm_01c_t *dev);

void sm_pwm_01c_read_data(sm_pwm_01c_t *dev, sm_pwm_01c_data_t *data);
 
#ifdef __cplusplus
}
#endif