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/*
* IoPort.h
*
* Created on: 30 Sep 2017
* Author: David
*/
#ifndef SRC_IOPORTS_H_
#define SRC_IOPORTS_H_
#include "RepRapFirmware.h"
// Logical pins used fore general output, servos, CCN and laser control
typedef uint16_t LogicalPin; // Type used to represent logical pin numbers
constexpr LogicalPin NoLogicalPin = 0xFFFFu;
// Enumeration to describe what we want to do with a logical pin
enum class PinAccess : int
{
read,
write,
pwm,
servo
};
// Class to represent a port
class IoPort
{
public:
IoPort();
void Clear();
bool Set(LogicalPin lp, PinAccess access, bool pInvert);
LogicalPin GetLogicalPin() const { return logicalPort; }
LogicalPin GetLogicalPin(bool& pInvert) const { pInvert = invert; return logicalPort; }
void WriteDigital(bool high) const { if (pin != NoPin) { WriteDigital(pin, (invert) ? !high : high); } }
// Low level port access
static void SetPinMode(Pin p, PinMode mode);
static bool ReadPin(Pin p);
static void WriteDigital(Pin p, bool high);
static void WriteAnalog(Pin p, float pwm, uint16_t frequency);
protected:
LogicalPin logicalPort;
Pin pin;
bool invert;
};
// Class to represent a PWM output port
class PwmPort : public IoPort
{
public:
PwmPort();
void SetFrequency(float freq);
float GetFrequency() const { return (float)frequency; }
void WriteAnalog(float pwm) const;
private:
uint16_t frequency;
};
#endif /* SRC_PORT_H_ */
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