CANcoder.hpp

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/*
 * Copyright (C) Cross The Road Electronics.  All rights reserved.
 * License information can be found in CTRE_LICENSE.txt
 * For support and suggestions contact support@ctr-electronics.com or file
 * an issue tracker at https://github.com/CrossTheRoadElec/Phoenix-Releases
 */
#pragma once
 
#include "ctre/phoenixpro/core/CoreCANcoder.hpp"
#include "ctre/phoenix/platform/DeviceType.hpp"
 
#include "wpi/sendable/Sendable.h"
#include "wpi/sendable/SendableBuilder.h"
#include "wpi/sendable/SendableHelper.h"
#include <hal/SimDevice.h>
 
namespace ctre {
namespace phoenixpro {
namespace hardware {
 
/**
 * Class for CANcoder, a CAN based magnetic encoder that provides absolute and
 * relative position along with filtered velocity.
 */
class CANcoder : public core::CoreCANcoder,
                 public wpi::Sendable,
                 public wpi::SendableHelper<CANcoder>
{
    /**
     * The StatusSignalValue getters are copies so that calls
     * to the WPI interface do not update any references
     *
     * These are also mutable so the const getter methods are
     * properly managed.
     */
    mutable StatusSignalValue<units::angle::turn_t> m_positionGetter = GetPosition();
 
    static constexpr phoenix::platform::DeviceType kSimDeviceType = phoenix::platform::DeviceType::PRO_CANcoderType;
 
    hal::SimDevice m_simCANcoder;
    hal::SimDouble m_simSupplyVoltage;
    hal::SimDouble m_simPosition;
    hal::SimDouble m_simRawPosition;
    hal::SimDouble m_simVelocity;
 
    int32_t m_simPeriodicUid{-1};
    std::vector<int32_t> m_simValueChangedUids;
 
    static void OnValueChanged(const char *name, void *param, HAL_SimValueHandle handle,
                                HAL_Bool readonly, const struct HAL_Value *value);
    static void OnPeriodic(void *param);
 
public:
    /**
     * Constructs a new CANcoder object.
     *
     * \param deviceId    ID of the device, as configured in Phoenix Tuner.
     * \param canbus      Name of the CAN bus this device is on. Possible CAN bus strings are:
     *                    - "rio" for the native roboRIO CAN bus
     *                    - CANivore name or serial number
     *                    - SocketCAN interface (non-FRC Linux only)
     *                    - "*" for any CANivore seen by the program
     *                    - empty string (default) to select the default for the system:
     *                      - "rio" on roboRIO
     *                      - "can0" on Linux
     *                      - "*" on Windows
     */
    CANcoder(int deviceId, std::string canbus = "");
    ~CANcoder();
 
    void InitSendable(wpi::SendableBuilder &builder) override;
};
 
}
}
}