ardupilot/libraries/AP_RangeFinder/AP_RangeFinder_LeddarOne.h

57 lines
1.5 KiB
C++

// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
#pragma once
#include "RangeFinder.h"
#include "RangeFinder_Backend.h"
#include <GCS_MAVLink/GCS.h>
#define LEDDARONE_DETECTIONS_MAX 3
// default slave address
#define LEDDARONE_DEFAULT_ADDRESS 0x01
// LeddarOne status
enum LeddarOne_Status {
LEDDARONE_OK = 0,
LEDDARONE_ERR_BAD_CRC = -1,
LEDDARONE_ERR_NO_RESPONSES = -2,
LEDDARONE_ERR_BAD_RESPONSE = -3,
LEDDARONE_ERR_SHORT_RESPONSE = -4,
LEDDARONE_ERR_SERIAL_PORT = -5,
LEDDARONE_ERR_NUMBER_DETECTIONS = -6
};
class AP_RangeFinder_LeddarOne : public AP_RangeFinder_Backend
{
public:
// constructor
AP_RangeFinder_LeddarOne(RangeFinder &ranger, uint8_t instance, RangeFinder::RangeFinder_State &_state,
AP_SerialManager &serial_manager);
// static detection function
static bool detect(RangeFinder &ranger, uint8_t instance, AP_SerialManager &serial_manager);
// update state
void update(void);
private:
// get a reading
bool get_reading(uint16_t &reading_cm);
// CRC16
bool CRC16(uint8_t *aBuffer, uint8_t aLength, bool aCheck);
// send a request message to execute ModBus function
LeddarOne_Status send_request(void);
// parse a response message from ModBus
LeddarOne_Status parse_response(uint8_t &number_detections);
AP_HAL::UARTDriver *uart = nullptr;
uint32_t last_reading_ms;
uint16_t detections[LEDDARONE_DETECTIONS_MAX];
uint32_t sum_distance;
};