Initial commit of files

include/libcan++/CanSignal.h

@@ -0,0 +1,116 @@
+//****************************************************************************
+// Copyright (C) 2007
+// Nissan North America
+// All Rights Reserved.  Proprietary and Confidential.
+//============================================================================
+
+/* prevent multiple inclusions */
+#ifndef __CanSignal__
+#define __CanSignal__
+
+/* includes *****************************************************************/
+
+#include    <sys/types.h>
+#include    <string>
+#include    <vector>
+
+//#include "BaseSignal.h"
+//#include "VoltType.h"
+
+#include "CanSocket.h"
+
+/* defines ******************************************************************/
+
+/* macros *******************************************************************/
+
+/* structs & typedefs *******************************************************/
+
+// based on .dbc data
+
+/* c class definitions ******************************************************/
+
+//
+// Uses the Peak Systems CAN Linux driver and Nissan CAN data
+//
+#ifdef __BaseSignal__
+class CanSignal : public BaseSignal, public VoltType {
+#else
+class CanSignal {
+#endif
+    // public data
+public:
+    std::string     Name;   // Signal Name
+    std::string     Units;  // Signal Units
+    u_int32_t Address;      // 29 bits (standard or extended)
+
+    // data conversion (from .dbc file)
+    u_char  StartBit;       // 0..63
+    u_char  NumBits;        // 1..32
+    u_char  BigEndian;      // 0 = little endian (intel), 1 = big endian (moto)
+    u_char  IsSigned;       // 0 = unsigned, 1 = 2's Complement
+    double  Scale;          // scale
+    double  Offset;         // offset
+
+    // conversion help
+    u_char  StartByte;      // 0..7
+    u_char  NumBytes;       // 1..4
+    u_char  HighBit;        // 0..7
+    u_char  LowBit;         // #bits after
+    u_int64_t   Mask;       // 64 bit mask
+    u_int64_t   Sign;       // 64 bit sign mask
+
+    // status, data
+    u_char  doSubscribe;    // CanSocket filter
+    u_char  isNew;
+    u_char  isValid;
+    int32_t rawValue;
+    int64_t currValue;
+    int64_t lastValue;
+    double  realValue;
+
+    // misc
+    u_int64_t activity;     // activity counter
+    void    *userData;      // user data
+    int     userIndex;      // user index
+
+
+    // private data
+private:
+
+    // static data
+
+    // public methods
+public:
+    // constructors
+    CanSignal();
+
+    // destructor
+    virtual ~CanSignal();
+
+    // virtual functions
+
+    // public methods
+    int Init( void );
+    int Convert(CanFrame *frame) {return Read(frame->data);};
+    int Read(CanFrame *frame) {return Read(frame->data);};
+    int Read(const u_char *pbyData, long *ldata=NULL, double *ddata=NULL);
+    int Write(CanFrame *frame) {return Write(frame->data);};
+    int Write(u_char *pbyData);
+    int Write(long value, u_char *pbyData);
+    long Write(double value, u_char *pbyData);
+    void Subscribe(void) {doSubscribe=1;};
+    void Unsubscribe(void) {doSubscribe=0;};
+
+#ifndef __VoltType__
+    void SetScaling( double scale=1.0, double offset=0.0 ) { Scale=scale; Offset=offset; };
+    double GetScale( void ) { return Scale; };
+    double GetOffset( void ) { return Offset; };
+#endif
+
+    // static methods
+
+    // private methods
+private:
+};
+
+#endif