gp2y10xx.h

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/*
 * Copyright (C) 2020 Locha Inc
 *
 * 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 <stdint.h>
#include <stdbool.h>
 
#include "periph/adc.h"
#include "periph/gpio.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifndef CONFIG_GP2Y10XX_MAX_READINGS
#define CONFIG_GP2Y10XX_MAX_READINGS (10)
#endif
 
enum {
    GP2Y10XX_OK         = 0,    
    GP2Y10XX_ERR_ADC    = -1,   
    GP2Y10XX_ERR_ILED   = -2,   
};
 
typedef enum {
    GP2Y10XX_ILED_LEVEL_HIGH,   
    GP2Y10XX_ILED_LEVEL_LOW,    
} gp2y10xx_level_t;
 
typedef struct {
    adc_t aout;         
    adc_res_t adc_res;  
    uint16_t vref;      
    gpio_t iled_pin;    
    gp2y10xx_level_t iled_level; 
} gp2y10xx_params_t;
 
typedef struct {
    gp2y10xx_params_t params;   
} gp2y10xx_t;
 
int gp2y10xx_init(gp2y10xx_t *dev, const gp2y10xx_params_t *params);
 
int gp2y10xx_read_density(const gp2y10xx_t *dev, uint16_t *density);
 
#ifdef __cplusplus
}
#endif