CSickLaserUSB.h

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2020, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */
#pragma once

#include <mrpt/comms/CInterfaceFTDI.h>
#include <mrpt/hwdrivers/C2DRangeFinderAbstract.h>

namespace mrpt::hwdrivers
{
/** This "software driver" implements the communication protocol for interfacing
 * a SICK LMS2XX laser scanners through a custom USB RS-422 interface board.
 *
 *   NOTE that this class is for a custom hardware built at our lab (MAPIR,
 * University of Malaga).
 *   For a generic serial interface, see the class CSickLaserSerial.
 *
 *   This class does not need to be bind, i.e. you do not need to call
 * C2DRangeFinderAbstract::bindIO. However, calling it will have not effect.
 *   In this class the "bind" is ignored since it is designed for USB
 * connections only, thus it internally generate the required object for
 * simplicity of use.
 *   The serial number of the USB device is used to open it on the first call
 * to "doProcess", thus you must call "loadConfig" before this, or manually
 *     call "setDeviceSerialNumber". The default serial number is "LASER001"
 *
 * Warning: Avoid defining an object of this class in a global scope if you
 * want to catch all potential
 *      exceptions during the constructors (like USB interface DLL not found,
 * etc...)
 *
 *
 *  \code
 *  PARAMETERS IN THE ".INI"-LIKE CONFIGURATION STRINGS:
 * -------------------------------------------------------
 *   [supplied_section_name]
 *   SICKUSB_serialNumber=LASER001
 *   pose_x=0.21    ; Laser range scaner 3D position in the robot (meters)
 *   pose_y=0
 *   pose_z=0.34
 *   pose_yaw=0 ; Angles in degrees
 *   pose_pitch=0
 *   pose_roll=0
 *    //preview = true // Enable GUI visualization of captured data
 *
 *    // Optional: Exclusion zones to avoid the robot seeing itself:
 *    //exclusionZone1_x = 0.20 0.30 0.30 0.20
 *    //exclusionZone1_y = 0.20 0.30 0.30 0.20
 *
 *    // Optional: Exclusion zones to avoid the robot seeing itself:
 *    //exclusionAngles1_ini = 20  // Deg
 *    //exclusionAngles1_end = 25  // Deg
 *  \endcode
 * \ingroup mrpt_hwdrivers_grp
 *
 */
class CSickLaserUSB : public C2DRangeFinderAbstract
{
    DEFINE_GENERIC_SENSOR(CSickLaserUSB)

   private:
    std::unique_ptr<mrpt::comms::CInterfaceFTDI> m_usbConnection{nullptr};
    std::string m_serialNumber;

    /** Time of the first data packet, for synchronization purposes. */
    uint32_t m_timeStartUI{0};
    mrpt::system::TTimeStamp m_timeStartTT;

    /** The sensor 6D pose:
     */
    poses::CPose3D m_sensorPose;

    bool checkControllerIsConnected();
    bool waitContinuousSampleFrame(
        std::vector<float>& ranges, unsigned char& LMS_status,
        uint32_t& out_board_timestamp, bool& is_mm_mode);

   protected:
    /** See the class documentation at the top for expected parameters */
    void loadConfig_sensorSpecific(
        const mrpt::config::CConfigFileBase& configSource,
        const std::string& iniSection) override;

   public:
    CSickLaserUSB();
    ~CSickLaserUSB() override = default;

    /** Changes the serial number of the device to open (call prior to
     * 'doProcess')
     */
    void setDeviceSerialNumber(const std::string& deviceSerialNumber)
    {
        m_serialNumber = deviceSerialNumber;
    }

    /** Specific laser scanner "software drivers" must process here new data
     * from the I/O stream, and, if a whole scan has arrived, return it.
     *  This method will be typically called in a different thread than other
     * methods, and will be called in a timely fashion.
     */
    void doProcessSimple(
        bool& outThereIsObservation,
        mrpt::obs::CObservation2DRangeScan& outObservation,
        bool& hardwareError) override;

    /** Enables the scanning mode (in this class this has no effect).
     * \return If everything works "true", or "false" if there is any error.
     */
    bool turnOn() override;

    /** Disables the scanning mode (in this class this has no effect).
     * \return If everything works "true", or "false" if there is any error.
     */
    bool turnOff() override;

};  // End of class

}  // namespace mrpt::hwdrivers