keybrd library is an open source library for creating custom-keyboard firmware.
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RowScanner_PinsBitwise.h 955B

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  1. #ifndef ROWSCANNER_PINSBITWISE_H
  2. #define ROWSCANNER_PINSBITWISE_H
  3. #include <Arduino.h>
  4. #include <inttypes.h>
  5. #include <RowScannerInterface.h>
  6. #include <RowPort.h>
  7. #include <ColPort.h>
  8. /* RowScanner_PinsBitwise uses bit manipulation to read all pins of one port.
  9. */
  10. class RowScanner_PinsBitwise : public RowScannerInterface
  11. {
  12. private:
  13. static const bool activeHigh; //logic level of strobe pin: 0=activeLow, 1=activeHigh
  14. RowPort& refRowPort; //this row's IC port
  15. const uint8_t strobePin; //bitwise, 1 indicates IC pin connected to this row
  16. ColPort& refColPort;
  17. public:
  18. RowScanner_PinsBitwise(RowPort &refRowPort, const uint8_t strobePin,
  19. ColPort& refColPort)
  20. : refRowPort(refRowPort), strobePin(strobePin),
  21. refColPort(refColPort) {}
  22. virtual uint8_t scan(uint16_t& rowEnd);
  23. uint8_t getRowState(uint16_t& rowEnd);
  24. };
  25. #endif