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- #ifndef ROWSCANNER_SPI_SHIFTREGISTERS_H
- #define ROWSCANNER_SPI_SHIFTREGISTERS_H
- #include <Arduino.h>
- #include <inttypes.h>
- #include <SPI.h>
- #include <RowScannerInterface.h>
- #include <RowPort.h>
- #include <ColPort.h>
-
- /* RowScanner_SPIShiftRegisters reads all shift registers in a daisy chain.
- //todo delete: Assumes only one row of shift registers is connected (no Slave Select).
- */
- class RowScanner_SPIShiftRegisters : public RowScannerInterface
- {
- private:
- const uint8_t SS; //Slave Select, pin on master
- const uint8_t BYTE_COUNT; //number of shift registers
- const uint8_t KEY_COUNT; //number of keys in row
- public:
- RowScanner_SPIShiftRegisters(const uint8_t SS, uint8_t BYTE_COUNT, uint16_t KEY_COUNT)
- : SS(SS), BYTE_COUNT(BYTE_COUNT), KEY_COUNT(KEY_COUNT) {}
- virtual uint8_t scan(uint16_t& rowEnd);
- void begin();
- };
- #endif
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