dataframe.h

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/*
 * @file dataframe.h
 * @brief DataFrame interface
 *
 * @date: 31. 12. 2022
 * @author: juraj
 */
 
#ifndef __DATAFRAME_H__
#define __DATAFRAME_H__
 
#include "stdint.h"
 
#define HEADER_CHAR1 0xCC
 
#define HEADER_CHAR2 0xDD
 
typedef enum {
  TYPE_PLAIN,
  TYPE_HEADER_1B,
  TYPE_HEADER_2B,
} DataframeType_t;
 
typedef enum {
  CRC_OFF,
  CRC_ON,
} DataframeCrc_t;
 
typedef enum {
  ERROR_NONE,
  ERROR_OVERFLOW,
} DataframeError_t;
 
class DataFrame {
 
private:
  uint8_t *_frame;
  uint8_t _length;
  uint8_t _capacity;
  DataframeType_t _type;
  DataframeCrc_t _crcUse;
  DataframeError_t _error;
 
public:
  DataFrame(uint8_t *frame, uint8_t size, DataframeType_t type, DataframeCrc_t);
  void Init(void);
 
  bool AddUint8(uint8_t d);
 
  bool AddUint16(uint16_t d);
 
  bool AddUint32(uint32_t);
 
  bool AddInt8(int8_t d);
 
  bool AddInt16(int16_t);
 
  bool AddInt32(int32_t);
 
  bool AddFloat(float);
 
  uint8_t Commit(void);
 
  uint8_t *GetFrame(void);
 
  DataframeError_t getError(void);
};
 
#ifdef __cplusplus
extern "C" {
#endif
 
uint8_t crc8(uint8_t crc, uint8_t Size, uint8_t *Buffer);
 
#ifdef __cplusplus
}
#endif
 
#endif /* DATAFRAME_H_ */