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/*

 * Copyright (c) 2021 Grinn

 *

 * SPDX-License-Identifier: Apache-2.0

 */

#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_INA237_H_

#define ZEPHYR_INCLUDE_DT_BINDINGS_INA237_H_


#include <zephyr/dt-bindings/dt-util.h>


/* Operating Mode */

#define INA237_CFG_HIGH_PRECISION                       BIT(4)

#define INA237_OPER_MODE_SHUTDOWN                       0x00

#define INA237_OPER_MODE_BUS_VOLTAGE_TRIG               0x01

#define INA237_OPER_MODE_SHUNT_VOLTAGE_TRIG             0x02

#define INA237_OPER_MODE_SHUNT_BUS_VOLTAGE_TRIG         0x03

#define INA237_OPER_MODE_TEMP_TRIG                      0x04

#define INA237_OPER_MODE_TEMP_BUS_VOLTAGE_TRIG          0x05

#define INA237_OPER_MODE_TEMP_SHUNT_VOLTAGE_TRIG        0x06

#define INA237_OPER_MODE_BUS_SHUNT_VOLTAGE_TEMP_TRIG    0x07

#define INA237_OPER_MODE_BUS_VOLTAGE_CONT               0x09

#define INA237_OPER_MODE_SHUNT_VOLTAGE_CONT             0x0A

#define INA237_OPER_MODE_SHUNT_BUS_VOLTAGE_CONT         0x0B

#define INA237_OPER_MODE_TEMP_CONT                      0x0C

#define INA237_OPER_MODE_BUS_VOLTAGE_TEMP_CONT          0x0D

#define INA237_OPER_MODE_TEMP_SHUNT_VOLTAGE_CONT        0x0E

#define INA237_OPER_MODE_BUS_SHUNT_VOLTAGE_TEMP_CONT    0x0F


/* Conversion time for bus, shunt and temp in micro-seconds */

#define INA237_CONV_TIME_50   0x00

#define INA237_CONV_TIME_84   0x01

#define INA237_CONV_TIME_150  0x02

#define INA237_CONV_TIME_280  0x03

#define INA237_CONV_TIME_540  0x04

#define INA237_CONV_TIME_1052 0x05

#define INA237_CONV_TIME_2074 0x06

#define INA237_CONV_TIME_4120 0x07


/* Averaging Mode */

#define INA237_AVG_MODE_1    0x00

#define INA237_AVG_MODE_4    0x01

#define INA237_AVG_MODE_16   0x02

#define INA237_AVG_MODE_64   0x03

#define INA237_AVG_MODE_128  0x04

#define INA237_AVG_MODE_256  0x05

#define INA237_AVG_MODE_512  0x06

#define INA237_AVG_MODE_1024 0x07


/* Reset Mode */

#define INA237_RST_NORMAL_OPERATION     0x00

#define INA237_RST_SYSTEM_RESET         0x01


/* Delay for initial ADC conversion in steps of 2 ms */

#define INA237_INIT_ADC_DELAY_0_S       0x00

#define INA237_INIT_ADC_DELAY_2_MS      0x01

#define INA237_INIT_ADC_DELAY_510_MS    0xFF


/* Shunt full scale range selection across IN+ and IN–. */

#define INA237_ADC_RANGE_163_84 0x00

#define INA237_ADC_RANGE_40_96  0x01


#define INA237_CONFIG(rst_mode, \

                      convdly, \

                      adc_range) \

        (((rst_mode) << 15) | ((convdly) << 6) | ((adc_range) << 4))


#define INA237_ADC_CONFIG(mode, \

                      vshct, \

                      vbusct, \

                      vtct, \

                      avg)  \

        (((mode) << 12) | ((vbusct) << 9) | ((vshct) << 6) | ((vtct) << 3) | (avg))


#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_INA237_H_ */

dt-util.h