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 <cstdint>
#include "cereal/gen/cpp/log.capnp.h"
#include "common/i2c.h"
#include "selfdrive/sensord/sensors/constants.h"
#include "selfdrive/sensord/sensors/sensor.h"
int16_t read_12_bit(uint8_t lsb, uint8_t msb);
int16_t read_16_bit(uint8_t lsb, uint8_t msb);
int32_t read_20_bit(uint8_t b2, uint8_t b1, uint8_t b0);
class I2CSensor : public Sensor {
private:
I2CBus *bus;
virtual uint8_t get_device_address() = 0;
public:
I2CSensor(I2CBus *bus);
int read_register(uint register_address, uint8_t *buffer, uint8_t len);
int set_register(uint register_address, uint8_t data);
virtual int init() = 0;
virtual void get_event(cereal::SensorEventData::Builder &event) = 0;
};