int scAcr20Shutdown( SC_READER_INFO *ri )
{
if( ri->si==NULL ) return( SC_EXIT_OK );
SIO_Close( ri->si );
ri->si=NULL;
return( SC_EXIT_OK );
}
void main ()
{
char
taip [80];
static char
rbuf [BUFSIZ], tbuf [BUFSIZ];
int
done, pid, chr;
printf ("\n");
printf (" Sample TAIP Query/Response Program\n");
printf (" Copyright Trimble Navigation 1992\n");
printf (" Version %s\n\n", VERSION);
/*
* Configure COM1
*/
pid = 0;
SIO_Open (NULL);
SIO_IntOpen (0, 8+4, -1, NULL);
SIO_PortOpen (pid, 0x3f8, 0, HS_DTR | HS_RTS | HS_CTS, NULL);
SIO_PortMode (pid, 4800L, 8, NOPARITY, ONEBIT, ONEBIT, NULL);
SIO_RxOpen (pid, rbuf, (long)BUFSIZ, HS_NONE, NULL);
SIO_TxOpen (pid, tbuf, (long)BUFSIZ, HS_NONE, NULL);
printf (" Serial Parameters: COM1, 4800 Baud, 8 data bits, 1 stop bit, no parity\n\n");
printf (" Press <Enter> to Poll for a PV packet\n");
printf (" Press <Escape> to quit\n");
for (done = FALSE; !done; ) { /* While not done... */
while (SIO_RxGet (pid, &chr) == 0) { /* While characters coming in */
taip_byte (chr); /* send them to the TAIP decoder */
}
if (kbhit ()) { /* if keyboard is hit... */
switch (getch ()) { /* get key and switch() */
case 27: /* <Escape>, Quit */
done = TRUE;
break;
case '\r': /* <Enter>, Poll for a PV packet */
fmt_taip (taip, "QPV"); /* format a TAIP packet */
ser_send (0, taip, strlen (taip)); /* send it */
printf ("\nSend: %s\n", taip); /* print it */
break;
}
}
}
SIO_Close (0); /* Shutdown serial ports */
}
int scAcr20Detect( SC_READER_DETECT_INFO *rdi )
{
SIO_INFO *si;
char *port;
BYTE buffer[14];
rdi->prob=0;
strncpy( rdi->name, "ACR20", SC_READER_NAME_MAXLEN );
rdi->major=SC_READER_ACR20;
rdi->minor=0;
rdi->slots=1;
rdi->pinpad=FALSE;
rdi->display=FALSE;
if( strlen(rdi->param)>=SC_READER_PARAM_MAXLEN )
return( SC_EXIT_BAD_PARAM );
if( (strcmp(rdi->param,"0")==0) || (strcmp(rdi->param,"1")==0) ||
(strcmp(rdi->param,"2")==0) || (strcmp(rdi->param,"3")==0) ) {
port=scReaderExpandPort( rdi->param );
if( port==NULL ) return( SC_EXIT_BAD_PARAM );
} else port=rdi->param;
/* Open port */
si = SIO_Open( port );
if( si==NULL ) return( SC_EXIT_IO_ERROR );
/* Set main port parameters */
SIO_SetSpeed( si, 9600 );
SIO_SetDataBits( si, 8 );
SIO_SetParity( si, SIO_PARITY_EVEN );
SIO_SetStopBits( si, 2 );
SIO_SetIOMode( si, SIO_IOMODE_DIRECT );
SIO_WriteSettings( si );
/* Get unwanted bytes */
#ifdef __palmos__
SIO_Flush(si);
#else
while(SIO_ReadChar(si)!=-1);
#endif /* __palmos__ */
/* Wait for status message. */
SIO_WaitForData( si, 2000000 );
if( SIO_ReadBuffer( si, buffer, 14 ) != 14 ) {
SIO_Close( si );
return( SC_EXIT_OK );
}
SIO_Close( si );
if( memcmp( buffer, "\x02\x30\x31\x46\x46\x30\x30\x30\x31\x31\x32", 11 ) )
return( SC_EXIT_OK );
rdi->minor=SC_ACR20_SERIAL;
/* Unless there is a other reader which sends the same message on
* power on it is a sure sign, that his reader is present.
*/
rdi->prob=250;
return( SC_EXIT_OK );
}
