ExioMcp23s17.h

00001 /*
00002  * ExioMcp23s17.h
00003  * Rapper Class for MCP23S17
00004  *
00005  * Use MCP23S17 Library:
00006  * https://developer.mbed.org/users/stjo2809/code/MCP23S17/
00007  *
00008  * 割込み処理は未実装
00009  *
00010  * Created: 2016.10.30
00011  *
00012  */
00013  
00014 #ifndef _EXIOMCP23S17_H_
00015 #define _EXIOMCP23S17_H_
00016 
00017 #include "mbed.h"
00018 #include "MCP23S17.h"
00019 
00020 typedef enum { ExioPortA, ExioPortB } ExioPort;
00021     
00022 class ExioMcp23s17 : public MCP23S17 {
00023 public:
00024     ExioMcp23s17(int hardwareaddress, SPI& spi, PinName nCs, PinName nReset) :
00025         MCP23S17(hardwareaddress, spi, nCs, nReset) {}
00026     
00027     ExioMcp23s17(int hardwareaddress, SPI& spi, PinName nCs) :
00028         MCP23S17(hardwareaddress, spi, nCs) {}
00029         
00030     uint8_t ioDirection(ExioPort port) { return read(IODIRA_ADDR | port); }
00031     void ioDirection(ExioPort port, uint8_t data) { write(IODIRA_ADDR | port, data); }
00032     
00033     uint8_t ioPolarity(ExioPort port) { return read(IPOLA_ADDR | port); }
00034     void ioPolarity(ExioPort port, uint8_t data) { write(IPOLA_ADDR | port, data); }
00035     
00036     uint8_t ioPullup(ExioPort port) { return read(GPPUA_ADDR | port); }
00037     void ioPullup(ExioPort port, uint8_t data) { write(GPPUA_ADDR | port, data); }
00038     
00039     uint8_t readPort(ExioPort port) { return read(GPIOA_ADDR | port); }
00040     void writePort(ExioPort port, uint8_t data) { write(GPIOA_ADDR | port, data); }
00041 
00042 protected:
00043     void write(uint8_t reg_address, uint8_t data) { MCP23S17::write(reg_address, data); }
00044     uint8_t read(uint8_t reg_address) { return MCP23S17::read(reg_address); }
00045 };
00046 
00047 #endif //_EXIOMCP23S17_H_