/********************************************************

	serdclient.c
	2001, Z-World

	serdclient.c is intended to be run in conjunction
	with console.c

	Example of a target board creating a web page while
	connected to an RCM2200 using serial port D.

	This program demonstrates the ability of a Rabbit-
	based target board to update files on the web
	server of the RCM2200 board it is connected to
	via serial port D.

 ********************************************************/

#define	DINBUFSIZE	255
#define	DOUTBUFSIZE	255

/********************************************************/

/*
	Read a response from the RCM2200.  Blocks until
	some characters are read or the timeout limit passes.
	Make sure that the buffer passed to it is large
	enough to contain the entire response or characters
	may be lost.
	
		parameter 1 = pointer to char buffer
		parameter 2 = length of buffer
		parameter 3 = timeout in milliseconds
 */
 
int get_ser_response(char *buf, int buflen, int timeout)
{
	int	done, len;
	unsigned long	t0;

	t0 = MS_TIMER + timeout;

	done = 0;
	len = 0;
	while (!done && ((long) (MS_TIMER - t0) < 0)) {
		len += serDread(buf, buflen, 500);
		if (len > 0) {
			buf[len] = '\0';
			done = 1;
		}
	}
	
	return (len);
}

/********************************************************/

#define	CTRL_D	0x04

main()
{
	char	s[250];
	int	len;
	long	secs;
	struct tm t;	
		
	// This baud rate is slow because of issues writing
	// to the first flash while reading from the serial
	// port--see console.c for more details
	serDopen(300);

	// make sure we are not in the middle of a command
	serDputs("\n");

	// turn the RCM2200's local echo off
	serDputs("echo off\n");
	
	get_ser_response(s, 200, 1500);
	printf("RCM2200 returned:  %s", s);

	// delete old web page (if it exists)
	serDputs("delete demo.html\n");

	get_ser_response(s, 200, 1500);
	printf("RCM2200 returned:  %s", s);
		
	// create the web page
	serDputs("put demo.html\r");
	serDputs("<H2>A demonstration web page</H2>\n");
	
	// get the current time	
	tm_rd(&t);
	sprintf(s, "Created on %02d/%02d/%04d at %02d:%02d:%02d\n",
				t.tm_mon, t.tm_mday, t.tm_year+1900,
				t.tm_hour, t.tm_min, t.tm_sec);
	serDputs(s);

	// end web page
	sprintf(s, "%c", CTRL_D);
	serDputs(s);

	// this response takes a bit longer
	get_ser_response(s, 200, 15000);
	printf("RCM2200 returned:  %s", s);	
}
