hardware_abstraction_layer.hpp

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#ifndef HARDWARE_ABSTRACTION_LAYER_HPP
#define HARDWARE_ABSTRACTION_LAYER_HPP
 
#include "hal_error.hpp"
 
namespace nes { namespace rob {
 
class HardwareAbstractionLayer {
  public:
    // Implementation specific inputs to the interface
    // Values must be defined in the concrete implementation
 
    static const int PIN_MODE_INPUT;
 
    static const int PIN_MODE_INPUT_PULLUP;
 
    static const int PIN_MODE_OUTPUT;
 
    static const int PIN_STATE_HIGH;
 
    static const int PIN_STATE_LOW;
 
    virtual ~HardwareAbstractionLayer (void) { }
 
    virtual nes::rob::error_code init (void * reserved = nullptr) = 0;
 
    virtual nes::rob::error_code delayMicroseconds (unsigned int us) const = 0;
 
    virtual nes::rob::error_code digitalWrite (unsigned int pin, int state) const = 0;
 
    virtual nes::rob::error_code pinMode (unsigned int pin, int mode) const = 0;
};
 
}} // namespace nes::rob
 
#endif // HARDWARE_ABSTRACTION_LAYER_HPP