/****************************************************************************
	FILE:	rxChat.c
	AUTH:	FSAE Wireless Data Aquisition Senior Sesign Project
			Igor Yudilevich
	DESC:	Waits for a string to come in on the COM Port
	VER:	1.0 - April 5, 2002
****************************************************************************/ 

#define COM_PORT   1		/* serial port number */
#define SPEED      19200L	/* baud rate = 19200 */

#include <stdio.h>
/*#include <ctype.h>		/* required for the isalnum function */
/*#include <stdlib.h>*/
/*#include <conio.h>*/
/*#include <math.h>*/
/*#include <dos.h>*/
#include "ibmcom3.h"		/* for serial */

/* Prototypes */
void comm_setting(void);	/* set com port */
void close_com(void);		/* close com port */

int main(void)
{
	char recieveChar;

	printf("Setting up serial port\n");
	comm_setting();		/* initializing communication */
	printf("Serial port initialized\n");

	while (1)
	{
		if (kbhit())	/* exit by closing the port first */
		{
			close_com();
			printf("\nExiting . . .\n");
			exit(0);
		}

		recieveChar = com_rx();

		if (recieveChar != '\0')
		{
			printf("%c", recieveChar);
		}
	}

	return 0;
}

/***************************************************************************/
void comm_setting(void)
{
	int errorCheck;
	errorCheck = com_install(COM_PORT);

	if (errorCheck != 0)
	{
		switch (errorCheck)
		{
			case 1:		printf("Invaid port number!\n");			break;
			case 2:		printf("No UART fot specified port!\n");	break;
			case 3:		printf("Drivers already installed!\n");		break;
			default:	printf("Error #%d\n", errorCheck);			break;
		}

		exit(1);
	}

	com_raise_dtr();
	com_set_speed(SPEED);
	com_set_parity(COM_NONE, STOP_BIT_1);
}

/***************************************************************************/
void close_com(void)
{
	com_lower_dtr();
	com_deinstall();
}