/*
 * INA219.h
 *
 *  Created on: Dec 30, 2020
 *      Author: Piotr Smolen <komuch@gmail.com>
 */

#ifndef INC_INA219_H_
#define INC_INA219_H_

#define INA219_ADDRESS 							(0x40)

//
//	Registers
//
#define	INA219_REG_CONFIG						(0x00)
#define	INA219_REG_SHUNTVOLTAGE					(0x01)
#define	INA219_REG_BUSVOLTAGE					(0x02)
#define	INA219_REG_POWER						(0x03)
#define	INA219_REG_CURRENT						(0x04)
#define	INA219_REG_CALIBRATION					(0x05)
//
#define INA219_CONFIG_RESET 					(0x8000)
//
#define INA219_CONFIG_BVOLTAGERANGE_16V			(0x0000) // 0-16V Range
#define INA219_CONFIG_BVOLTAGERANGE_32V			(0x2000) // 0-32V Range

#define	INA219_CONFIG_GAIN_1_40MV				(0x0000)  // Gain 1, 40mV Range
#define	INA219_CONFIG_GAIN_2_80MV				(0x0800)  // Gain 2, 80mV Range
#define	INA219_CONFIG_GAIN_4_160MV				(0x1000) // Gain 4, 160mV Range
#define	INA219_CONFIG_GAIN_8_320MV				(0x1800) // Gain 8, 320mV Range

#define	INA219_CONFIG_BADCRES_9BIT				(0x0000)  // 9-bit bus res = 0..511
#define	INA219_CONFIG_BADCRES_10BIT				(0x0080) // 10-bit bus res = 0..1023
#define	INA219_CONFIG_BADCRES_11BIT				(0x0100) // 11-bit bus res = 0..2047
#define	INA219_CONFIG_BADCRES_12BIT				(0x0180) // 12-bit bus res = 0..4097
#define	INA219_CONFIG_BADCRES_12BIT_2S_1060US 	(0x0480) // 2 x 12-bit bus samples averaged together
#define	INA219_CONFIG_BADCRES_12BIT_4S_2130US	(0x0500) // 4 x 12-bit bus samples averaged together
#define	INA219_CONFIG_BADCRES_12BIT_8S_4260US	(0x0580) // 8 x 12-bit bus samples averaged together
#define	INA219_CONFIG_BADCRES_12BIT_16S_8510US	(0x0600) // 16 x 12-bit bus samples averaged together
#define	INA219_CONFIG_BADCRES_12BIT_32S_17MS	(0x0680) // 32 x 12-bit bus samples averaged together
#define	INA219_CONFIG_BADCRES_12BIT_64S_34MS	(0x0700) // 64 x 12-bit bus samples averaged together
#define	INA219_CONFIG_BADCRES_12BIT_128S_69MS	(0x0780) // 128 x 12-bit bus samples averaged together

#define	INA219_CONFIG_SADCRES_9BIT_1S_84US		(0x0000) // 1 x 9-bit shunt sample
#define	INA219_CONFIG_SADCRES_10BIT_1S_148US	(0x0008) // 1 x 10-bit shunt sample
#define	INA219_CONFIG_SADCRES_11BIT_1S_276US	(0x0010) // 1 x 11-bit shunt sample
#define	INA219_CONFIG_SADCRES_12BIT_1S_532US	(0x0018) // 1 x 12-bit shunt sample
#define	INA219_CONFIG_SADCRES_12BIT_2S_1060US	(0x0048) // 2 x 12-bit shunt samples averaged together
#define	INA219_CONFIG_SADCRES_12BIT_4S_2130US	(0x0050) // 4 x 12-bit shunt samples averaged together
#define	INA219_CONFIG_SADCRES_12BIT_8S_4260US	(0x0058) // 8 x 12-bit shunt samples averaged together
#define	INA219_CONFIG_SADCRES_12BIT_16S_8510US	(0x0060) // 16 x 12-bit shunt samples averaged together
#define	INA219_CONFIG_SADCRES_12BIT_32S_17MS	(0x0068) // 32 x 12-bit shunt samples averaged together
#define	INA219_CONFIG_SADCRES_12BIT_64S_34MS	(0x0070) // 64 x 12-bit shunt samples averaged together
#define	INA219_CONFIG_SADCRES_12BIT_128S_69MS	(0x0078) // 128 x 12-bit shunt samples averaged together
//
#define INA219_CONFIG_MODE_MASK					(0x07)
#define	INA219_CONFIG_MODE_POWERDOWN			0x00 /**< power down */
#define	INA219_CONFIG_MODE_SVOLT_TRIGGERED		0x01 /**< shunt voltage triggered */
#define	INA219_CONFIG_MODE_BVOLT_TRIGGERED		0x02 /**< bus voltage triggered */
#define	INA219_CONFIG_MODE_SANDBVOLT_TRIGGERED	0x03 /**< shunt and bus voltage triggered */
#define	INA219_CONFIG_MODE_ADCOFF				0x04 /**< ADC off */
#define	INA219_CONFIG_MODE_SVOLT_CONTINUOUS		0x05 /**< shunt voltage continuous */
#define	INA219_CONFIG_MODE_BVOLT_CONTINUOUS		0x06 /**< bus voltage continuous */
#define	INA219_CONFIG_MODE_SANDBVOLT_CONTINUOUS 0x07

typedef struct
{
	I2C_HandleTypeDef 	*ina219_i2c;
	uint8_t				Address;
} INA219_t;

extern uint16_t ina219_calibrationValue;
extern int16_t ina219_currentDivider_mA;
extern int16_t ina219_powerMultiplier_mW;

uint8_t INA219_Init(INA219_t *ina219, I2C_HandleTypeDef *i2c, uint8_t Address);
uint16_t INA219_ReadBusVoltage(INA219_t *ina219);
int16_t INA219_ReadCurrent(INA219_t *ina219);
int16_t INA219_ReadCurrent_raw(INA219_t *ina219);
uint16_t INA219_ReadShuntVolage(INA219_t *ina219);

void INA219_Reset(INA219_t *ina219);
void INA219_setCalibration(INA219_t *ina219, uint16_t CalibrationData);
uint16_t INA219_getConfig(INA219_t *ina219);
void INA219_setConfig(INA219_t *ina219, uint16_t Config);
void INA219_setCalibration_32V_2A(INA219_t *ina219);
void INA219_setCalibration_32V_1A(INA219_t *ina219);
void INA219_setCalibration_16V_400mA(INA219_t *ina219);
void INA219_setPowerMode(INA219_t *ina219, uint8_t Mode);

uint16_t Read16(INA219_t *ina219, uint8_t Register);
void Write16(INA219_t *ina219, uint8_t Register, uint16_t Value);



#endif /* INC_INA219_H_ */