1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/graphlcd-base/glcddrivers/port.h	Wed Feb 06 17:32:55 2008 +0000
     1.3 @@ -0,0 +1,78 @@
     1.4 +/*
     1.5 + * GraphLCD driver library
     1.6 + *
     1.7 + * port.h  -  parallel port class with low level routines
     1.8 + *
     1.9 + * This file is released under the GNU General Public License. Refer
    1.10 + * to the COPYING file distributed with this package.
    1.11 + *
    1.12 + * (c) 2004 Andreas Regel <andreas.regel AT powarman.de>
    1.13 + */
    1.14 +
    1.15 +#ifndef _GLCDDRIVERS_PORT_H_
    1.16 +#define _GLCDDRIVERS_PORT_H_
    1.17 +
    1.18 +namespace GLCD
    1.19 +{
    1.20 +
    1.21 +const int kForward = 0;
    1.22 +const int kReverse = 1;
    1.23 +
    1.24 +const unsigned char kStrobeHigh = 0x00; // Pin 1
    1.25 +const unsigned char kStrobeLow  = 0x01;
    1.26 +const unsigned char kAutoHigh   = 0x00; // Pin 14
    1.27 +const unsigned char kAutoLow    = 0x02;
    1.28 +const unsigned char kInitHigh   = 0x04; // Pin 16
    1.29 +const unsigned char kInitLow    = 0x00;
    1.30 +const unsigned char kSelectHigh = 0x00; // Pin 17
    1.31 +const unsigned char kSelectLow  = 0x08;
    1.32 +
    1.33 +class cParallelPort
    1.34 +{
    1.35 +private:
    1.36 +    int fd;
    1.37 +    int port;
    1.38 +    bool usePPDev;
    1.39 +
    1.40 +public:
    1.41 +    cParallelPort();
    1.42 +    ~cParallelPort();
    1.43 +
    1.44 +    int Open(int port);
    1.45 +    int Open(const char * device);
    1.46 +    int Close();
    1.47 +
    1.48 +    bool IsDirectIO() const { return (!usePPDev); }
    1.49 +    int GetPortHandle() const { return ((usePPDev) ? fd : port); }
    1.50 +
    1.51 +    void Claim();
    1.52 +    void Release();
    1.53 +
    1.54 +    void SetDirection(int direction);
    1.55 +    unsigned char ReadControl();
    1.56 +    void WriteControl(unsigned char values);
    1.57 +    unsigned char ReadStatus();
    1.58 +    unsigned char ReadData();
    1.59 +    void WriteData(unsigned char data);
    1.60 +};
    1.61 +
    1.62 +class cSerialPort
    1.63 +{
    1.64 +private:
    1.65 +    int fd;
    1.66 +
    1.67 +public:
    1.68 +    cSerialPort();
    1.69 +    ~cSerialPort();
    1.70 +
    1.71 +    int Open(const char * device);
    1.72 +    int Close();
    1.73 +
    1.74 +    int ReadData(unsigned char * data);
    1.75 +    void WriteData(unsigned char data);
    1.76 +    void WriteData(unsigned char * data, unsigned short length);
    1.77 +};
    1.78 +
    1.79 +} // end of namespace
    1.80 +
    1.81 +#endif