19 lines
478 B
C
19 lines
478 B
C
|
#ifndef ROWSCANNERINTERFACE_H
|
||
|
|
#define ROWSCANNERINTERFACE_H
|
||
|
|
|
||
|
|
/* RowScannerInterface is an interface class.
|
||
|
|
Sets rowEnd and returns rowState.
|
||
|
|
rowEnd is bitwise, where 1 bit corrsiponds to place immediatly after last key of row.
|
||
|
|
rowEnd and rowMask are larger type than portMask so that they can not overflow.
|
||
|
|
*/
|
||
|
|
#include <Arduino.h>
|
||
|
|
#include <inttypes.h>
|
||
|
|
|
||
|
|
class RowScannerInterface
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
virtual uint8_t scan(uint16_t& rowEnd, const bool activeHigh)=0;
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|