dn_device.h

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#ifndef DN_DEVICE_H_
#define DN_DEVICE_H_

#ifndef _DN_EXP_DEVICE
#define _DN_EXP_DEVICE
#endif /* _DN_EXP_DEVICE */

#if defined(_USE_WIN_API)
#define DNGetLastError() GetLastError()
#define OSSUCCEEDED(ret) ((ret) != 0)
#define OSFAILED(ret)  ((ret) == 0)
#else
#if defined(_USE_LINUX_API)
#define DNGetLastError() errno
#define OSSUCCEEDED(ret) ((ret) ==  0)
#define OSFAILED(ret)  ((ret) == -1)
#endif

#define NOPARITY (0)

#define ODDPARITY (1)

#define EVENPARITY (2)

#define ONESTOPBIT (0)

#define TWOSTOPBITS (2)

#endif

#define DEV_BUF_MAX ((uint16_t)-1)

#define E_INVALIDPACKET _HRESULT_TYPEDEF_(0x80010000L)

enum CONN_PARAM_CHECK_FLAG
{
  CHECK_TYPE_TCP = 0x0001,     
  CHECK_TYPE_UDP = 0x0002,     
  CHECK_TYPE_COM = 0x0004,     
  CHECK_TYPE_ALL = 0x00FF,     
  CHECK_FUNC_OPEN = 0x0100,    
  CHECK_FUNC_CLOSE = 0x0200,   
  CHECK_FUNC_SEND = 0x0400,    
  CHECK_FUNC_RECV = 0x0800,    
  CHECK_FUNC_TIMEOUT = 0x1000, 
  CHECK_FUNC_CLEAR = 0x2000,   
  CHECK_FUNC_ALL = 0xFF00,     
};

enum CONN_TYPE
{
  CONN_TCP = CHECK_TYPE_TCP, 
  CONN_UDP = CHECK_TYPE_UDP, 
  CONN_COM = CHECK_TYPE_COM, 
};

struct CONN_PARAM_ETH
{
  uint32_t dst_addr; 
  uint16_t dst_port; 
  uint32_t src_addr; 
  uint16_t src_port; 
};

struct CONN_PARAM_COM
{
  int port;           
  uint32_t baud_rate; 
  char parity;        
  char data_bits;     
  char stop_bits;     
  char flow;          
};

struct CONN_PARAM_COMMON
{
  int sock;         
  int type;         
  uint32_t timeout; 
  void *arg;        
  HRESULT (*dn_open)(void *param, int *sock);
  HRESULT (*dn_close)(int *sock);
  HRESULT (*dn_send)(int sock, const char *buf, uint32_t len_buf, void *arg);
  HRESULT (*dn_recv)(int sock, char *buf, uint32_t len_buf, uint32_t *len_recved,
      uint32_t timeout, void *arg);
  HRESULT (*dn_set_timeout)(int sock, uint32_t timeout);
  HRESULT (*dn_clear)(int sock, uint32_t timeout);
};

#ifdef __cplusplus
extern "C"
{
#endif

  _DN_EXP_DEVICE int
  parse_conn_type(const char *opt);

  _DN_EXP_DEVICE HRESULT
  parse_conn_param_ether(const char *opt, struct CONN_PARAM_ETH *param);

  _DN_EXP_DEVICE HRESULT
  parse_conn_param_serial(const char *opt, struct CONN_PARAM_COM *param);

  _DN_EXP_DEVICE HRESULT
  check_timeout(int sock, uint32_t timeout);

  _DN_EXP_DEVICE HRESULT
  check_conn_param(const struct CONN_PARAM_COMMON *device, int flag);

  _DN_EXP_DEVICE void
  memcpy_le(void *dst, const void *src, uint32_t len);

  _DN_EXP_DEVICE void
  memcpy_be(void *dst, const void *src, uint32_t len);

#ifdef __cplusplus
}
#endif

#endif /* DN_DEVICE_H_ */