NT4/private/ntos/dd/serial/tinsertr.c
2020-09-30 17:12:29 +02:00

221 lines
4.3 KiB
C

//
// This test the line status and modem status insertion.
//
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "nt.h"
#include "ntrtl.h"
#include "nturtl.h"
#include "ntddser.h"
#include "windows.h"
#define SIZEOFBUF 1000000
UCHAR readBuff[SIZEOFBUF];
int _CRTAPI1 main(int argc,char *argv[]) {
HANDLE hFile;
DCB myDcb;
char *myPort = "COM1";
unsigned char escapeChar = 0xff;
DWORD numberToRead;
DWORD numberActuallyRead;
DWORD useBaud = 1200;
COMMTIMEOUTS to = {0};
int j;
IO_STATUS_BLOCK Iosb1;
NTSTATUS Status1;
if (argc > 1) {
sscanf(argv[1],"%d",&numberToRead);
if (argc > 2) {
sscanf(argv[2],"%d",&useBaud);
if (argc > 3) {
myPort = argv[3];
}
}
}
if ((hFile = CreateFile(
myPort,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL
)) == ((HANDLE)-1)) {
printf("Couldn't open the comm port\n");
exit(1);
}
to.ReadIntervalTimeout = 1000;
to.ReadTotalTimeoutConstant = 20000;
if (!SetCommTimeouts(
hFile,
&to
)) {
printf("Couldn't set the timeouts\n");
exit(1);
}
//
// We've successfully opened the file. Set the state of
// the comm device. First we get the old values and
// adjust to our own.
//
if (!GetCommState(
hFile,
&myDcb
)) {
printf("Couldn't get the comm state: %d\n",GetLastError());
exit(1);
}
myDcb.BaudRate = useBaud;
myDcb.ByteSize = 8;
myDcb.Parity = NOPARITY;
myDcb.StopBits = ONESTOPBIT;
//
// Make sure that no flow control is turned on.
//
myDcb.fOutxDsrFlow = FALSE;
myDcb.fOutxCtsFlow = FALSE;
myDcb.fDsrSensitivity = FALSE;
myDcb.fOutX = FALSE;
myDcb.fInX = FALSE;
myDcb.fDtrControl = DTR_CONTROL_DISABLE;
myDcb.fRtsControl = RTS_CONTROL_DISABLE;
if (!SetCommState(
hFile,
&myDcb
)) {
printf("Couldn't set the comm state.\n");
exit(1);
}
//
// Start up the insert ioctl.
//
Status1 = NtDeviceIoControlFile(
hFile,
NULL,
NULL,
NULL,
&Iosb1,
IOCTL_SERIAL_LSRMST_INSERT,
&escapeChar,
sizeof(unsigned char),
NULL,
0
);
if (!NT_SUCCESS(Status1)) {
printf("1: Non pending status: %x\n",Status1);
exit(1);
}
if (!ReadFile(
hFile,
&readBuff[0],
64000,
&numberActuallyRead,
NULL
)) {
printf("bad status on read: %d\n",GetLastError());
exit(1);
}
printf("We actually read %d characters\n",numberActuallyRead);
//
// We got the characters back. Dump each character to the stdout.
//
for (
j = 0;
j < numberActuallyRead;
) {
if (readBuff[j] != escapeChar) {
printf("Normal Char: %x\n",readBuff[j]);
j++;
} else {
if (j+1 == numberActuallyRead) {
printf("Terminated with the escape char!!!\n");
exit(1);
}
//
// We have the escape char. interpret it.
//
if (readBuff[j+1] == SERIAL_LSRMST_ESCAPE) {
printf("Escaped escape char: %x\n",escapeChar);
j += 2;
} else if (readBuff[j+1] == SERIAL_LSRMST_LSR_DATA) {
printf("LSR reg: %x AND data: %x\n",readBuff[j+2],readBuff[j+3]);
j += 4;
} else if (readBuff[j+1] == SERIAL_LSRMST_LSR_NODATA) {
printf("LSR reg: %x NO DATA\n",readBuff[j+2]);
j += 3;
} else if (readBuff[j+1] == SERIAL_LSRMST_MST) {
printf("MST reg: %x\n",readBuff[j+2]);
j += 3;
} else {
printf("Unknown escape code: %d\n",readBuff[j+1]);
j++;
}
}
}
}