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Fixed x86_linux regression -> read returns without timeout isn't good at all!...
Fixed x86_linux regression -> read returns without timeout isn't good at all! /!\ check that it doesn't block on OMAP3 (beagleBone).
jeandet@pc-de-jeandet3.LAB-LPP.LOCAL - - Load All Authors

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r35:0e868a37e6ff alexis
r37:27201139c7da alexis
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RS232_win.c
364 lines | 7.8 KiB | text/x-c | CLexer
/ src / RS232_win.c
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#include "rs232config.h"
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <malloc.h>
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif
#include "RS232.h"
#ifdef HAVE_WINDOWS_H
int privatedecodeparity(rs232parity Parity )
{
switch(Parity)
{
case rs232parityNo:
return NOPARITY;
break;
case rs232parityOdd:
return ODDPARITY;
break;
case rs232parityEven:
return EVENPARITY;
break;
default:
return NOPARITY;
break;
}
}
int privatedecodestop(rs232stop NbStop)
{
switch(NbStop)
{
case rs232OneStop:
return ONESTOPBIT;
break;
case rs232One5Stop:
return ONE5STOPBITS;
break;
case rs232TwoStop:
return TWOSTOPBITS;
break;
default:
return ONESTOPBIT;
break;
}
}
rs232speed_t rs232cfspeed(unsigned int BaudeRate)
{
if(BaudeRate<123)
return (rs232speed_t)CBR_110;
if(BaudeRate<450)
return (rs232speed_t)CBR_300;
if(BaudeRate<900)
return (rs232speed_t)CBR_600;
if(BaudeRate<1500)
return (rs232speed_t)CBR_1200;
if(BaudeRate<3600)
return (rs232speed_t)CBR_2400;
if(BaudeRate<7200)
return (rs232speed_t)CBR_4800;
if(BaudeRate<14000)
return (rs232speed_t)CBR_9600;
if(BaudeRate<16800)
return (rs232speed_t)CBR_14400;
if(BaudeRate<28800)
return (rs232speed_t)CBR_19200;
if(BaudeRate<48000)
return (rs232speed_t)CBR_38400;
if(BaudeRate<86400)
return (rs232speed_t)CBR_57600;
if(BaudeRate<172800)
return (rs232speed_t)CBR_115200;
else
return (rs232speed_t)CBR_256000;
}
rs232port_t rs232open(char* psPortName)
{
rs232port_t fd;
fd = (rs232port_t)CreateFile(psPortName,GENERIC_READ | GENERIC_WRITE,0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
#ifdef debug
if(fd==(rs232port_t)INVALID_HANDLE_VALUE)
{
printf("can't open Port\n");
return (rs232port_t)badPortValue;
}
#endif
return fd;
}
int rs232close(rs232port_t fd)
{
if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
{
return (rs232port_t)badPortValue;
}
else
{
CloseHandle((HANDLE)fd);
return rs232noerr;
}
}
rs232portslist_t* rs232getportlist() //here is the very dirty way!
{
int i=0;
char devName[]="COM111";
rs232port_t testport;
rs232portslist_t* firstitem=NULL;
rs232portslist_t* previtem=NULL;
for(i=0;i<256;i++)
{
devName[3] = '\0';
devName[4] = '\0';
devName[5] = '\0';
devName[6] = '\0';
sprintf(devName+3,"%d",i);
testport= rs232open(devName);
if(testport != (rs232port_t)badPortValue)
{
rs232portslist_t* item = (rs232portslist_t*)malloc(sizeof(rs232portslist_t));
char* name = (char*)malloc(7);
strcpy(name,devName);
item->name = name;
item->next = NULL;
if(NULL!=previtem)previtem->next = item;
previtem = item;
if(NULL==firstitem)firstitem = item;
}
}
return firstitem;
}
void rs232deleteportlist(rs232portslist_t* list)
{
if(list!=NULL)
{
if(list->next != NULL)
rs232deleteportlist(list->next);
free(list);
}
}
int rs232setup(rs232port_t fd, int ChSize, int BaudeRate, rs232parity Parity, rs232stop NbStop)
{
if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
{
return (rs232port_t)badPortValue;
}
else
{
DCB dcbSerialParams = {0};
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
GetCommState((HANDLE)fd, &dcbSerialParams);
dcbSerialParams.BaudRate=rs232cfspeed(BaudeRate);
dcbSerialParams.ByteSize=ChSize;
dcbSerialParams.StopBits=privatedecodestop(NbStop);
dcbSerialParams.Parity=privatedecodeparity(Parity);
SetCommState((HANDLE)fd, &dcbSerialParams);
COMMTIMEOUTS timeouts={0};
timeouts.ReadIntervalTimeout=100;
timeouts.ReadTotalTimeoutConstant=100;
timeouts.ReadTotalTimeoutMultiplier=1;
timeouts.WriteTotalTimeoutConstant=100;
timeouts.WriteTotalTimeoutMultiplier=10;
SetCommTimeouts((HANDLE)fd, &timeouts);
return rs232noerr;
}
}
int rs232setbaudrate(rs232port_t fd, int baudrate)
{
if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
{
return (rs232port_t)badPortValue;
}
else
{
DCB dcbSerialParams = {0};
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
GetCommState((HANDLE)fd, &dcbSerialParams);
dcbSerialParams.BaudRate=rs232cfspeed(baudrate);
SetCommState((HANDLE)fd, &dcbSerialParams);
return rs232noerr;
}
}
int rs232setparity(rs232port_t fd, rs232parity Parity)
{
if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
{
return (rs232port_t)badPortValue;
}
else
{
DCB dcbSerialParams = {0};
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
GetCommState((HANDLE)fd, &dcbSerialParams);
dcbSerialParams.Parity = privatedecodeparity(Parity);
SetCommState((HANDLE)fd, &dcbSerialParams);
return rs232noerr;
}
}
int rs232setnbstop(rs232port_t fd, rs232stop NbStop)
{
if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
{
return (rs232port_t)badPortValue;
}
else
{
DCB dcbSerialParams = {0};
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
GetCommState((HANDLE)fd, &dcbSerialParams);
dcbSerialParams.StopBits = privatedecodestop(NbStop);
SetCommState((HANDLE)fd, &dcbSerialParams);
return rs232noerr;
}
}
int rs232setcsize(rs232port_t fd, int ChSize)
{
if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
{
return (rs232port_t)badPortValue;
}
else
{
DCB dcbSerialParams = {0};
dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
GetCommState((HANDLE)fd, &dcbSerialParams);
dcbSerialParams.ByteSize = ChSize;
SetCommState((HANDLE)fd, &dcbSerialParams);
return rs232noerr;
}
}
int rs232write(rs232port_t fd,char *psWrite, int WriteBufferSize)
{
if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
{
return (rs232port_t)badPortValue;
}
else
{
DWORD dwBytesWriten = 0;
WriteFile((HANDLE)fd, psWrite, WriteBufferSize, &dwBytesWriten, NULL);
return dwBytesWriten;
}
}
int rs232read(rs232port_t fd,char *psRead, int ReadBufferSize)
{
if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
{
return (rs232port_t)badPortValue;
}
else
{
DWORD dwBytesRead = 0;
ReadFile((HANDLE)fd, psRead, ReadBufferSize, &dwBytesRead, NULL);
return dwBytesRead;
}
}
int rs232saferead(rs232port_t fd,char* data,int count )
{
int read=0;
int i=0;
for(i=0;i<100;i++)
{
read = rs232read(fd,data,count);
count -=read;
data+=read;
if(count==0)
return rs232noerr;
}
return -1;
}
int rs232safewrite(rs232port_t fd,char* data,int count)
{
int written=0;
int i=0;
for(i=0;i<1000;i++)
{
written = rs232write(fd,data+written,count);
count-=written;
data+=written;
if(count==0)
return rs232noerr;
}
return -1;
}
int rs232setRTS(rs232port_t fd)
{
if(EscapeCommFunction((HANDLE)fd, CLRRTS))
return rs232noerr;
return -1;
}
int rs232clearRTS(rs232port_t fd)
{
if(EscapeCommFunction((HANDLE)fd, SETRTS))
return rs232noerr;
return -1;
}
int rs232setDTR(rs232port_t fd)
{
if(EscapeCommFunction((HANDLE)fd, CLRDTR))
return rs232noerr;
return -1;
}
int rs232clearDTR(rs232port_t fd)
{
if(EscapeCommFunction((HANDLE)fd, SETDTR))
return rs232noerr;
return -1;
}
#endif //#ifdef HAVE_WINDOWS_H