abp2.h

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/*
 * Copyright (C) 2024 CNRS, France
 *
 * 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 "saul.h"
 
#if defined(MODULE_ABP2_SPI)
#include "periph/spi.h"
#include "periph/gpio.h"
#elif defined(MODULE_ABP2_I2C)
#include "periph/i2c.h"
#else
#error "ABP2 driver >> Please add a valid module: either abp2_spi or abp2_i2c"
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
#if defined(MODULE_ABP2_I2C)
#define ABP2_ADDR_DEFAULT       (0x28)
#endif

#define ABP2_STATUS_BUSY        0x20    
#define ABP2_STATUS_MEMERR      0x04    
#define ABP2_STATUS_MATHSAT     0x01    
#define ABP2_STATUS_MASK        (ABP2_STATUS_BUSY | ABP2_STATUS_MEMERR | ABP2_STATUS_MATHSAT) /* end of abp2_statusbits */

typedef struct abp2_params {
#if defined(MODULE_ABP2_SPI)
    spi_t spi;              
    spi_cs_t cs;            
    spi_clk_t clk;          
#else
    i2c_t i2c;              
#endif
    int32_t rangeMin;       
    int32_t rangeMax;       
} abp2_params_t;

typedef struct abp2 {
    const abp2_params_t *params;   
} abp2_t;

typedef struct abp2_raw {
    uint32_t cntPress;      
    uint32_t cntTemp;       
} abp2_raw_t;

int abp2_init(abp2_t *dev, const abp2_params_t *params);

int abp2_measure(const abp2_t *dev);

int abp2_read(const abp2_t *dev, int32_t *press, int32_t *temp);

int abp2_read_nb(const abp2_t *dev, int32_t *press, int32_t *temp);

uint8_t abp2_getstatus(const abp2_t *dev);

int abp2_read_raw(const abp2_t *dev, abp2_raw_t *raw_values);

int abp2_measure_read(const abp2_t *dev, abp2_raw_t *raw_values);

int32_t abp2_pressure(const abp2_t *dev, const abp2_raw_t *raw_values);

int32_t abp2_temperature(const abp2_t *dev, const abp2_raw_t *raw_values);
 
#ifdef __cplusplus
}
#endif