/**
 * @file include/di_fw/battery.h
 * @brief battery header file
 * @date August 24, 2016
 * @author A.A.W.M. Ruijs
 * @copyright 2016 Dual Inventive Technology Centre B.V.
 */
#ifndef INCLUDE_DI_FW_BATTERY_H_
#define INCLUDE_DI_FW_BATTERY_H_

#include <di/device/charger.h>
#include <di/device/battery.h>

/**
 * Enum of batteries that can be selected
 * Note: entries are used as index in an array, do not change values
 */
enum di_fw_batteries {
	DI_FW_BATTERY_1 = 0,
#ifdef DI_FW_BATTERY_ADC_CHANNEL2
	DI_FW_BATTERY_2,
#endif
	DI_FW_BATTERY_COUNT,

};

#define DI_FW_BATTERY_DELTA 0.1f /* threshold for sending data */

struct di_fw_battery_data {
	uint32_t periodic_id;
	float current_voltage;
	float previous_voltage;
	const enum di_fw_batteries battery_num;
	enum di_device_battery_state current_state;
	enum di_device_battery_state previous_state;
};

/**
 * convert raw ADC value to voltage
 * @param val	the adc sample that need to be converted to voltage
 */
float di_fw_battery_calculate_voltage(adcsample_t val);

/**
 * configure ADC for measurement and start the thread for measuring
 */
void di_fw_battery_init(void);

#endif /* INCLUDE_DI_FW_BATTERY_H_ */