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/**
* @file ina219.h
*
* @brief INA219 Support
*
* This file is part of the bladeRF project:
* http://www.github.com/nuand/bladeRF
*
* Copyright (C) 2017 Nuand LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DRIVER_INA219_H_
#define DRIVER_INA219_H_
#include <libbladeRF.h>
#include "board/board.h"
/**
* Initialize the INA219 voltage/current/power monitor.
*
* @param dev Device handle
* @param[in] r_shunt Shunt resistor in ohms
*
* @return 0 on success, BLADERF_ERR_* value on failure
*/
int ina219_init(struct bladerf *dev, float r_shunt);
/**
* Read the shunt voltage.
*
* @param dev Device handle
* @param[out] voltage Shunt voltage in volts
*
* @return 0 on success, BLADERF_ERR_* value on failure
*/
int ina219_read_shunt_voltage(struct bladerf *dev, float *voltage);
/**
* Read the bus voltage.
*
* @param dev Device handle
* @param[out] voltage Bus voltage in volts
*
* @return 0 on success, BLADERF_ERR_* value on failure
*/
int ina219_read_bus_voltage(struct bladerf *dev, float *voltage);
/**
* Read the load current.
*
* @param dev Device handle
* @param[out] current Load current in amps
*
* @return 0 on success, BLADERF_ERR_* value on failure
*/
int ina219_read_current(struct bladerf *dev, float *current);
/**
* Read the load power.
*
* @param dev Device handle
* @param[out] power Load power in watts
*
* @return 0 on success, BLADERF_ERR_* value on failure
*/
int ina219_read_power(struct bladerf *dev, float *power);
#endif
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