Source code of Windows XP (NT5)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

366 lines
8.6 KiB

#include <stdio.h>
#include <windows.h>
BOOL DoComIo(LPSTR lpCom,DWORD Baud,BYTE Size,BYTE Parity,BYTE Stop);
//#define COM_DEB 1
#define NUM 128
#define print printf
#define SETTINGS1 "COM1",9600,8,NOPARITY,ONESTOPBIT
#define SETTINGS2 "COM1",4800,8,NOPARITY,ONESTOPBIT
#define SETTINGS3 "COM1",2400,8,NOPARITY,ONESTOPBIT
#define SETTINGS4 "COM1",1200,8,NOPARITY,ONESTOPBIT
DWORD dwSize;
DWORD dwRIT,dwRTTM,dwRTTC;
DWORD main(int argc, char *argv[], char *envp[])
{
BOOL bRc;
CHAR chDummy;
BOOL bSize,bRIT,bRTTM,bRTTC;
UNREFERENCED_PARAMETER(envp);
bRIT = bRTTM = bSize = bRTTC = FALSE;
while(argc--)
{
switch(argv[argc][1])
{
// case 'f' :
// case 'F' : {
// if (argv[argc][0] != '-') break;
// printf("filename option=%s\n\n",argv[argc]);
// sscanf(argv[argc],"%c %c %s",&chDummy,&chDummy,lpFilename);
// printf("filename to be displayed=%s\n\n",lpFilename);
// bFile = TRUE;
// break;
// }
case 'I' :
case 'i' : {
if (argv[argc][0] != '-') break;
printf("RIT option=%s\n\n",argv[argc]);
sscanf(argv[argc],"%c %c %lx",&chDummy,&chDummy,&dwRIT);
printf("RIT =%lx\n\n",dwRIT);
bRIT = TRUE;
break;
}
case 'M' :
case 'm' : {
if (argv[argc][0] != '-') break;
printf("RTTM option=%s\n\n",argv[argc]);
sscanf(argv[argc],"%c %c %lx",&chDummy,&chDummy,&dwRTTM);
printf("RTTM =%lx\n\n",dwRTTM);
bRTTM = TRUE;
break;
}
case 'C' :
case 'c' : {
if (argv[argc][0] != '-') break;
printf("RTTC option=%s\n\n",argv[argc]);
sscanf(argv[argc],"%c %c %lx",&chDummy,&chDummy,&dwRTTC);
printf("RTTC =%lx\n\n",dwRTTC);
bRTTC = TRUE;
break;
}
case 'S' :
case 's' : {
if (argv[argc][0] != '-') break;
printf("size option=%s\n\n",argv[argc]);
sscanf(argv[argc],"%c %c %lx",&chDummy,&chDummy,&dwSize);
printf("Size to be xfered =%lx bytes\n\n",dwSize);
if (dwSize > NUM)
{
printf("dwSize[%lx] should be < %lx\n",dwSize,NUM);
return -1;
}
bSize = TRUE;
break;
}
default: {
break;
}
}
}
if (!bRIT || !bRTTM || !bRTTC ||!bSize)
{
printf("\n\nOptions are required!!\n\n");
printf("timeout <required options>\n\n");
printf("options:\n");
printf(" -i<read interval timeout > eg: -i0x0000>\n\n");
printf(" -m<read total timeout multiplier> eg: -m0x0000>\n\n");
printf(" -c<read total timeout constant> eg: -c0x0000>\n\n");
printf(" -s<size in bytes to be xfred eg: -s0x10>\n\n");
return (-1);
}
print("\n\n *** Doing COM TEST with [port=%s Baud=%d,Size=%d,Parity=%d,Stop=%d]***\n\n",
SETTINGS1);
bRc = DoComIo(SETTINGS1);
if (!bRc) {
print("\n\nCOM TEST FAILED********************************\n\n");
}
return 0;
}
BOOL DoComIo(LPSTR lpCom,DWORD Baud,BYTE Size,BYTE Parity,BYTE Stop)
{
CHAR WrBuffer[NUM];
CHAR RdBuffer[NUM];
DWORD i;
HANDLE hCommPort;
DCB dcb;
BOOL bRc;
DWORD dwNumWritten,dwNumRead,dwErrors;
COMMTIMEOUTS CommTimeOuts;
print("\n\n *** COMM TEST START [port=%s,Baud=%d,Size=%d,Parity=%d,Stop=%d]***\n\n",
lpCom,Baud,Size,Parity,Stop);
print("Opening the comm port for read write\n");
hCommPort = CreateFile(
lpCom,
GENERIC_READ|GENERIC_WRITE,
0, // exclusive
NULL, // sec attr
OPEN_EXISTING,
0, // no attributes
NULL); // no template
if (hCommPort == (HANDLE)-1)
{
print("FAIL: OpenComm failed rc: %lx\n",hCommPort);
return FALSE;
}
print("Opening the comm port for read write: SUCCESS hCommPort=%lx\n",hCommPort);
print("Setting the line characteristics on comm \n");
if (!GetCommState(hCommPort,&dcb))
{
printf("FAIL: Couldn't get the dcb: %d\n",GetLastError());
return FALSE;
}
dcb.DCBlength = sizeof(DCB);
// dcb.DCBversion = 0x0002; BUG BUG in spec not in header
dcb.BaudRate = Baud;
dcb.ByteSize = Size;
dcb.Parity = Parity;
dcb.StopBits = Stop;
bRc = SetupComm(hCommPort,1024,1024);
printf("bRc from CommSetup = %lx\n",bRc);
if (!bRc)
{
printf("FAIL: comsetup\n");
}
bRc = SetCommState(hCommPort,&dcb);
if (!bRc)
{
print("FAIL: cannot set the comm state rc:%lx\n",bRc);
bRc = CloseHandle(hCommPort);
if (!bRc)
{
print("FAIL: cannot close the comm port:%lx\n",bRc);
}
return FALSE;
}
print("Setting the line characteristics on comm: SUCCESS\n");
CommTimeOuts.ReadIntervalTimeout = dwRIT;
CommTimeOuts.ReadTotalTimeoutMultiplier = dwRTTM;
CommTimeOuts.ReadTotalTimeoutConstant = dwRTTC;
CommTimeOuts.WriteTotalTimeoutMultiplier = 0;
CommTimeOuts.WriteTotalTimeoutConstant = 0;
printf("setting timeouts: RIT=%lx RTTM = %lx RTTC = %lx\n",
dwRIT, dwRTTM, dwRTTC);
bRc = SetCommTimeouts(hCommPort, &CommTimeOuts);
printf("bRc from setcommtimeouts = %lx\n",bRc);
if (!bRc)
{
printf("FAIL: setcommtimeouts\n");
}
printf("Filling the buffer with the known chars \n");
for (i=0; i<dwSize; i++)
{
//WrBuffer[i] = 'a';
WrBuffer[i] = (CHAR)i;
}
print("Filling the buffer with the known chars : SUCCESS\n");
#ifdef COM_DEB
print("Dumping the buffer before sending it to comm\n");
for (i=0; i< dwSize; i++)
{
//print("%c",RdBuffer[i]);
print(" %d ",WrBuffer[i]);
}
print("\nDumping the buffer before sending it to comm SUCCESS\n");
#endif
print("Filling the Rdbuffer with the known chars (0xFF) to makeit dirty\n");
for (i=0; i< dwSize; i++)
{
RdBuffer[i] = (CHAR)'0xFF';
}
print("Filling the Rdbuffer with the known chars (0xFF): SUCCESS\n");
print("Writting this buffer to the comm port\n");
bRc = WriteFile( hCommPort,
WrBuffer,
dwSize,
&dwNumWritten,
NULL);
if (!bRc)
{
print("FAIL: cannot Write To the comm port:%lx\n",bRc);
bRc = CloseHandle(hCommPort);
if (!bRc)
{
print("FAIL: cannot close the comm port:%lx\n",bRc);
}
return FALSE;
}
print("Writting this buffer to the comm port: SUCCESS rc:%lx, byteswritten:%lx\n",
bRc,dwNumWritten);
print("Reading this buffer from the comm port\n");
bRc = ReadFile( hCommPort,
RdBuffer,
dwSize,
&dwNumRead,
NULL);
if (!bRc)
{
print("FAIL: cannot Read From the comm port:%lx\n",bRc);
bRc = CloseHandle(hCommPort);
if (!bRc)
{
print("FAIL: cannot close the comm port:%lx\n",bRc);
}
return FALSE;
}
print("Reading this buffer from the comm port: SUCCESS rc:%lx, bytesread:%lx\n",
bRc,dwNumRead);
//#ifdef COM_DEB
print("Dumping the Rdbuffer with the comm data\n");
for (i=0; i< dwSize; i++)
{
//print("%c",RdBuffer[i]);
print(" %d ",RdBuffer[i]);
}
print("\nDumping the Rdbuffer with the comm data: SUCCESS\n");
//#endif
print("Comparing the rd and wr buffers\n");
for (i=0; i< dwSize; i++)
{
if (RdBuffer[i] != WrBuffer[i])
{
print("FAIL: BufferMisMatch: RdBuffer[%d]=%lx,WrBuffer[%d]=%lx\n",
i,RdBuffer[i],i,WrBuffer[i]);
bRc = CloseHandle(hCommPort);
if (!bRc)
{
print("FAIL: cannot close the comm port:%lx\n",bRc);
}
return FALSE;
}
}
print("Comparing the rd and wr buffers: SUCCESS\n");
bRc = ClearCommError(hCommPort,&dwErrors,NULL);
print("ClearCommError: rc= %lx and dwErrors=%lx\n",bRc,dwErrors);
bRc = PurgeComm(hCommPort,0);
print("PurgeComm (%lx,0) rc = %lx\n",hCommPort,bRc);
//bRc = FlushFileBuffers(hCommPort);
//print("flushfilebuffers(%lx) rc = %lx\n",hCommPort,bRc);
print("Closing the comm port\n");
bRc = CloseHandle(hCommPort);
if (!bRc)
{
print("FAIL: cannot close the comm port:%lx\n",bRc);
return FALSE;
}
print("\n\n*** COMM TEST OVER*** \n\n");
}