#ifndef DS18B20_H
#define DS18B20_H

#ifdef __cplusplus
extern "C" {
#endif


typedef struct _DS18B20_Info DS18B20_Info;

/**
 * @brief Initialise a device info instance with the specified GPIO.
 * @param[in] ds18b20_info Pointer to device info instance.
 * @param[in] gpio GPIO number to associate with device.
 */
void ds18b20_init(DS18B20_Info * ds18b20_info, int gpio);

/**
 * @brief Construct a new device info instance.
 * @return Pointer to new device info instance, or NULL if it cannot be created.
 */
DS18B20_Info * ds18b20_new(void);

/**
 * @brief Read 64-bit ROM code from device - only works when there is a single device on the bus.
 * @param[in] ds18b20_info Pointer to device info instance.
 * @return The 64-bit value read from the device's ROM.
 */
uint64_t ds18b20_read_rom(DS18B20_Info * ds18b20_info);

/**
 * @brief Get current temperature from device.
 * @param[in] ds18b20_info Pointer to device info instance. Must be initialised first.
 * @return The current temperature returned by the device, in degrees Celsius.
 */
float ds18b20_get_temp(DS18B20_Info * ds18b20_info);


#ifdef __cplusplus
}
#endif

#endif  // DS18B20_H