openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#pragma once
#include "sensors/i2c_sensor.hpp"
// Address of the chip on the bus
#define BMX055_MAGN_I2C_ADDR 0x10
// Registers of the chip
#define BMX055_MAGN_I2C_REG_ID 0x40
#define BMX055_MAGN_I2C_REG_PWR_0 0x4B
#define BMX055_MAGN_I2C_REG_MAG 0x4C
#define BMX055_MAGN_I2C_REG_DATAX_LSB 0x42
#define BMX055_MAGN_I2C_REG_RHALL_LSB 0x48
#define BMX055_MAGN_I2C_REG_REPXY 0x51
#define BMX055_MAGN_I2C_REG_REPZ 0x52
#define BMX055_MAGN_I2C_REG_DIG_X1 0x5D
#define BMX055_MAGN_I2C_REG_DIG_Z4 0x62
#define BMX055_MAGN_I2C_REG_DIG_Z2 0x68
// Constants
#define BMX055_MAGN_CHIP_ID 0x32
#define BMX055_MAGN_FORCED (0b01 << 1)
struct trim_data_t {
int8_t dig_x1;
int8_t dig_y1;
int8_t dig_x2;
int8_t dig_y2;
uint16_t dig_z1;
int16_t dig_z2;
int16_t dig_z3;
int16_t dig_z4;
uint8_t dig_xy1;
int8_t dig_xy2;
uint16_t dig_xyz1;
};
class BMX055_Magn : public I2CSensor{
uint8_t get_device_address() {return BMX055_MAGN_I2C_ADDR;}
trim_data_t trim_data = {0};
public:
BMX055_Magn(I2CBus *bus);
int init();
void get_event(cereal::SensorEventData::Builder &event);
};