|
|
#include "rs232config.h"
|
|
|
#include <stdio.h>
|
|
|
#include <unistd.h>
|
|
|
#include <fcntl.h>
|
|
|
#include <string.h>
|
|
|
#include <errno.h>
|
|
|
|
|
|
#ifdef HAVE_WINDOWS_H
|
|
|
#include <windows.h>
|
|
|
#endif
|
|
|
#include "RS232.h"
|
|
|
|
|
|
#ifdef HAVE_WINDOWS_H
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
rs232speed_t rs232cfspeed(unsigned int BaudeRate)
|
|
|
{
|
|
|
|
|
|
if(BaudeRate<123)
|
|
|
return CBR_110;
|
|
|
|
|
|
if(BaudeRate<450)
|
|
|
return CBR_300;
|
|
|
|
|
|
if(BaudeRate<900)
|
|
|
return CBR_600;
|
|
|
|
|
|
if(BaudeRate<1500)
|
|
|
return CBR_1200;
|
|
|
|
|
|
if(BaudeRate<3600)
|
|
|
return CBR_2400;
|
|
|
|
|
|
if(BaudeRate<7200)
|
|
|
return CBR_4800;
|
|
|
|
|
|
if(BaudeRate<14000)
|
|
|
return CBR_9600;
|
|
|
|
|
|
if(BaudeRate<16800)
|
|
|
return CBR_14400;
|
|
|
|
|
|
if(BaudeRate<28800)
|
|
|
return CBR_19200;
|
|
|
|
|
|
if(BaudeRate<48000)
|
|
|
return CBR_38400;
|
|
|
|
|
|
if(BaudeRate<86400)
|
|
|
return CBR_57600;
|
|
|
|
|
|
if(BaudeRate<172800)
|
|
|
return CBR_115200;
|
|
|
else
|
|
|
return CBR_256000;
|
|
|
}
|
|
|
|
|
|
|
|
|
rs232port_t rs232open(char* psPortName)
|
|
|
{
|
|
|
rs232port_t fd;
|
|
|
fd = CreateFile(psPortName,GENERIC_READ | GENERIC_WRITE,0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
|
|
|
return fd;
|
|
|
}
|
|
|
|
|
|
int rs232close(rs232port_t fd)
|
|
|
{
|
|
|
if (fd == badPortValue)
|
|
|
{
|
|
|
return -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
CloseHandle(fd);
|
|
|
return 0;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int rs232setup(rs232port_t fd, int ChSize, int BaudeRate, rs232parity Parity, rs232stop NbStop)
|
|
|
{
|
|
|
if (fd == badPortValue)
|
|
|
{
|
|
|
return -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
DCB dcbSerialParams = {0};
|
|
|
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
|
|
|
GetCommState(fd, &dcbSerialParams);
|
|
|
dcbSerialParams.BaudRate=rs232cfspeed(BaudeRate);
|
|
|
dcbSerialParams.ByteSize=ChSize;
|
|
|
dcbSerialParams.StopBits=NbStop;
|
|
|
dcbSerialParams.Parity=Parity;
|
|
|
SetCommState(fd, &dcbSerialParams);
|
|
|
COMMTIMEOUTS timeouts={0};
|
|
|
timeouts.ReadIntervalTimeout=10;
|
|
|
timeouts.ReadTotalTimeoutConstant=10;
|
|
|
timeouts.ReadTotalTimeoutMultiplier=1;
|
|
|
timeouts.WriteTotalTimeoutConstant=50;
|
|
|
timeouts.WriteTotalTimeoutMultiplier=10;
|
|
|
SetCommTimeouts(fd, &timeouts);
|
|
|
return 0;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int rs232setbaudrate(rs232port_t fd, int baudrate)
|
|
|
{
|
|
|
if (fd == badPortValue)
|
|
|
{
|
|
|
return -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
DCB dcbSerialParams = {0};
|
|
|
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
|
|
|
GetCommState(fd, &dcbSerialParams);
|
|
|
dcbSerialParams.BaudRate=rs232cfspeed(baudrate);
|
|
|
SetCommState(fd, &dcbSerialParams);
|
|
|
return 0;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int rs232setparity(rs232port_t fd, rs232parity Parity)
|
|
|
{
|
|
|
if (fd == badPortValue)
|
|
|
{
|
|
|
return -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
DCB dcbSerialParams = {0};
|
|
|
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
|
|
|
GetCommState(fd, &dcbSerialParams);
|
|
|
dcbSerialParams.Parity = Parity;
|
|
|
SetCommState(fd, &dcbSerialParams);
|
|
|
return 0;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int rs232setnbstop(rs232port_t fd, rs232stop NbStop)
|
|
|
{
|
|
|
if (fd == badPortValue)
|
|
|
{
|
|
|
return -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
DCB dcbSerialParams = {0};
|
|
|
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
|
|
|
GetCommState(fd, &dcbSerialParams);
|
|
|
switch(NbStop)
|
|
|
{
|
|
|
case 2:
|
|
|
dcbSerialParams.StopBits = 2;
|
|
|
break;
|
|
|
default:
|
|
|
dcbSerialParams.StopBits = 1;
|
|
|
break;
|
|
|
}
|
|
|
SetCommState(fd, &dcbSerialParams);
|
|
|
return 0;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
int rs232setcsize(rs232port_t fd, int ChSize)
|
|
|
{
|
|
|
if (fd == badPortValue)
|
|
|
{
|
|
|
return -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
DCB dcbSerialParams = {0};
|
|
|
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
|
|
|
GetCommState(fd, &dcbSerialParams);
|
|
|
dcbSerialParams.ByteSize = ChSize;
|
|
|
SetCommState(fd, &dcbSerialParams);
|
|
|
return 0;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int rs232write(rs232port_t fd,char *psWrite, int WriteBufferSize)
|
|
|
{
|
|
|
|
|
|
if (fd == badPortValue)
|
|
|
{
|
|
|
return -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
DWORD dwBytesWriten = 0;
|
|
|
WriteFile(fd, psWrite, WriteBufferSize, &dwBytesWriten, NULL);
|
|
|
return dwBytesWriten;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
int rs232read(rs232port_t fd,char *psRead, int ReadBufferSize)
|
|
|
{
|
|
|
|
|
|
if (fd == badPortValue)
|
|
|
{
|
|
|
return -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
DWORD dwBytesRead = 0;
|
|
|
ReadFile(fd, psRead, ReadBufferSize, &dwBytesRead, NULL);
|
|
|
return dwBytesRead;
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
#endif //#ifdef HAVE_WINDOWS_H
|
|
|
|
