veml7700_sensor.h

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#ifndef __VEML7700_SENSOR_H__
#define __VEML7700_SENSOR_H__
 
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include "i2c_bus.h"
#include "esp_err.h"
#include "esp_log.h"

 
#define VEML7700_I2C_ADDR (0x10) 

#define VEML7700_INTEGRATION_TIME_25MS  (0b1100)  
#define VEML7700_INTEGRATION_TIME_50MS  (0b1000)  
#define VEML7700_INTEGRATION_TIME_100MS (0b0000)  
#define VEML7700_INTEGRATION_TIME_200MS (0b0001)  
#define VEML7700_INTEGRATION_TIME_400MS (0b0010)  
#define VEML7700_INTEGRATION_TIME_800MS (0b0011)  

#define VEML7700_GAIN_1     (0b00)  
#define VEML7700_GAIN_2     (0b01)  
#define VEML7700_GAIN_DIV_8 (0b10)  
#define VEML7700_GAIN_DIV_4 (0b11)  

#define VEML7700_POWER_SAVING_MODE_500MS  (0b00)  
#define VEML7700_POWER_SAVING_MODE_1000MS (0b01)  
#define VEML7700_POWER_SAVING_MODE_2000MS (0b10)  
#define VEML7700_POWER_SAVING_MODE_4000MS (0b11)  

#define VEML7700_PERSISTENCE_PROTECTION_1 (0b00)  
#define VEML7700_PERSISTENCE_PROTECTION_2 (0b01)  
#define VEML7700_PERSISTENCE_PROTECTION_4 (0b10)  
#define VEML7700_PERSISTENCE_PROTECTION_8 (0b11)  
 
#ifdef __cplusplus
extern "C" {
#endif

typedef uint8_t i2c_addr_t;

typedef uint32_t ill_lx_t;

typedef struct {
    uint16_t gain : 2;                
    uint16_t integration_time : 4;    
    uint16_t persistence_protect : 2; 
    uint16_t interrupt_enable : 1;    
    uint16_t shutdown : 1;            
    uint16_t threshold_high;          
    uint16_t threshold_low;           
    uint16_t power_saving_mode : 2;   
    uint16_t power_saving_enable : 1; 
} veml7700_config_t;

typedef struct {
    i2c_bus_device_handle_t i2c_dev; 
    i2c_addr_t dev_addr;             
    veml7700_config_t cfg;           
} veml7700_dev_t;

typedef void* veml7700_handle_t;

veml7700_handle_t veml7700_i2c_create(i2c_bus_handle_t bus, i2c_addr_t dev_addr);

veml7700_handle_t veml7700_i2c_init(i2c_bus_handle_t bus, i2c_addr_t dev_addr);

void veml7700_i2c_delete(veml7700_handle_t sensor);

esp_err_t veml7700_i2c_probe(veml7700_handle_t sensor);

esp_err_t veml7700_i2c_write_config(veml7700_handle_t sensor, veml7700_config_t *cfg);

esp_err_t veml7700_i2c_read_config(veml7700_handle_t sensor, veml7700_config_t* cfg);

esp_err_t veml7700_i2c_read_ambient_light(veml7700_handle_t sensor, ill_lx_t *val);

esp_err_t veml7700_i2c_read_white_channel(veml7700_handle_t sensor, ill_lx_t *val);

esp_err_t veml7700_i2c_read_interrupt_status(
    veml7700_handle_t sensor,
    bool *low,
    bool *high
);
 
#ifdef __cplusplus
}
#endif
 // end of veml7700 group
 
#endif // __VEML7700_SENSOR_H__