1 /******************************************************************************** 2 / 3 / File: DigitalPort.h 4 / 5 / Description: Digital Port class header. 6 / 7 / Copyright 1996-98, Be Incorporated, All Rights Reserved. 8 / 9 ********************************************************************************/ 10 11 12 #ifndef _DIGITAL_PORT_H 13 #define _DIGITAL_PORT_H 14 15 #include <BeBuild.h> 16 #include <stddef.h> 17 #include <SupportDefs.h> 18 19 20 /* -----------------------------------------------------------------------*/ 21 class BDigitalPort { 22 23 public: 24 BDigitalPort(); 25 virtual ~BDigitalPort(); 26 27 status_t Open(const char *portName); 28 void Close(void); 29 bool IsOpen(void); 30 31 ssize_t Read(uint8 *buf); 32 ssize_t Write(uint8 value); 33 34 status_t SetAsOutput (void); 35 bool IsOutput (void); 36 37 status_t SetAsInput (void); 38 bool IsInput (void); 39 40 41 /* -----------------------------------------------------------------------*/ 42 43 private: 44 45 virtual void _ReservedDigitalPort1(); 46 virtual void _ReservedDigitalPort2(); 47 virtual void _ReservedDigitalPort3(); 48 49 int ffd; 50 bool fIsInput; 51 uint32 _fReserved[3]; 52 }; 53 54 #endif 55