DemoPowerSupply.h

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* libscopehal                                                                                                          *
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* Copyright (c) 2012-2024 Andrew D. Zonenberg and contributors                                                         *
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#ifndef DemoPowerSupply_h
#define DemoPowerSupply_h
 
class DemoPowerSupply
    : public virtual SCPIPowerSupply
    , public virtual SCPIDevice
{
public:
    DemoPowerSupply(SCPITransport* transport);
    virtual ~DemoPowerSupply();
 
    //Device information
    virtual uint32_t GetInstrumentTypesForChannel(size_t i) const override;
 
    //Device capabilities
    bool SupportsSoftStart() override;
    bool SupportsIndividualOutputSwitching() override;
    bool SupportsMasterOutputSwitching() override;
    bool SupportsOvercurrentShutdown() override;
 
    //Read sensors
    double GetPowerVoltageActual(int chan) override;    //actual voltage after current limiting
    double GetPowerVoltageNominal(int chan) override;   //set point
    double GetPowerCurrentActual(int chan) override;    //actual current drawn by the load
    double GetPowerCurrentNominal(int chan) override;   //current limit
    bool GetPowerChannelActive(int chan) override;
 
    //Configuration
    bool GetPowerOvercurrentShutdownEnabled(int chan) override; //shut channel off entirely on overload,
                                                                //rather than current limiting
    void SetPowerOvercurrentShutdownEnabled(int chan, bool enable) override;
    bool GetPowerOvercurrentShutdownTripped(int chan) override;
    void SetPowerVoltage(int chan, double volts) override;
    void SetPowerCurrent(int chan, double amps) override;
    void SetPowerChannelActive(int chan, bool on) override;
    bool IsPowerConstantCurrent(int chan) override;
 
    bool GetMasterPowerEnable() override;
    void SetMasterPowerEnable(bool enable) override;
 
protected:
    static constexpr int m_numChans = 4;
    static constexpr double m_loads[m_numChans] = {10000000, 0.01, 1, 1000};
    static constexpr const char* m_names[m_numChans] = {"Open", "Short", "1Ohm", "1KOhm"};
    static constexpr double m_maxVoltage = 25;
    static constexpr double m_maxAmperage = 5;
 
    bool m_masterEnabled;
    double m_voltages[m_numChans];
    double m_currents[m_numChans];
    bool m_enabled[m_numChans];
    enum
    {
        OCP_OFF,
        OCP_ENABLED,
        OCP_TRIPPED
    } m_ocpState[m_numChans];
 
public:
    static std::string GetDriverNameInternal();
    POWER_INITPROC(DemoPowerSupply)
};
 
#endif