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

	ssi.c
   Z-World, 2004

   This program demonstrates using a WEB page to control LED0 (DS5) and LED1
   (DS6) from the PowerCoreFLEX prototyping board. Users can browse to the
   controller, and change the status of the LEDs to match the indicators
   displayed on the WEB page.

   Program Instructions
   --------------------
   1. Compile and run this program.
   2. With your WEB browzer access the WEB page running on the controller.
   3. View LEDS on Web page and the prototyping board to see that they
   	match-up when changing them via the WEB page control button.

   	LED0 = DS5
      LED1 = DS6

*******************************************************************************/
//  Set a default of declaring all local variables "auto" (on stack)
#class auto

// Sample library for PowerCoreFLEX series core modules
#use "PowerCoreFLEX.lib"

// MACROS for the LED's
#define ON     1
#define OFF    0

#define LED0   0
#define LED1   1



/***********************************
 * Configuration                   *
 * -------------                   *
 * All fields in this section must *
 * be altered to match your local  *
 * network settings.               *
 ***********************************/

/*
 * Pick the predefined TCP/IP configuration for this sample.  See
 * LIB\TCPIP\TCP_CONFIG.LIB for instructions on how to set the
 * configuration.
 */
#define TCPCONFIG 1


/*
 * TCP/IP modification - reduce TCP socket buffer
 * size, to allow more connections. This can be increased,
 * with increased performance, if the number of sockets
 * are reduced.  Note that this buffer size is split in
 * two for TCP sockets--1024 bytes for send and 1024 bytes
 * for receive.
 */
#define TCP_BUF_SIZE 2048

/*
 * Web server configuration
 */

/*
 * only one socket and server are needed for a reserved port
 */
#define HTTP_MAXSERVERS 1
#define MAX_TCP_SOCKET_BUFFERS 1


/*
 * Our web server as seen from the clients.
 * This should be the address that the clients (netscape/IE)
 * use to access your server. Usually, this is your IP address.
 * If you are behind a firewall, though, it might be a port on
 * the proxy, that will be forwarded to the Rabbit board. The
 * commented out line is an example of such a situation.
 */

#define REDIRECTHOST  _PRIMARY_STATIC_IP
//#define REDIRECTHOST	"proxy.domain.com:1212"

/********************************
 * End of configuration section *
 ********************************/

/*
 *  REDIRECTTO is used by each ledxtoggle cgi's to tell the
 *  browser which page to hit next.  The default REDIRECTTO
 *  assumes that you are serving a page that does not have
 *  any address translation applied to it.
 *
 */

#define REDIRECTTO  "http://" REDIRECTHOST "/index.shtml"

#memmap xmem
#use "dcrtcp.lib"
#use "http.lib"

/*
 *  Notice that we have ximported in the source code for
 *  this program.  This allows us to <!--#include file="ssi.c"-->
 *  in the pages/showsrc.shtml.
 *
 */

#ximport "samples/PowerCoreFLEX/tcpip/pages/ssi.shtml"       index_html
#ximport "samples/PowerCoreFLEX/tcpip/pages/rabbit1.gif"     rabbit1_gif
#ximport "samples/PowerCoreFLEX/tcpip/pages/ledon.gif"       ledon_gif
#ximport "samples/PowerCoreFLEX/tcpip/pages/ledoff.gif"      ledoff_gif
#ximport "samples/PowerCoreFLEX/tcpip/pages/button.gif"      button_gif
#ximport "samples/PowerCoreFLEX/tcpip/pages/showsrc.shtml"   showsrc_shtml
#ximport "samples/PowerCoreFLEX/tcpip/ssi.c"                 ssi_c

/*
 *  In this case the .html is not the first type in the
 *  type table.  This causes the default (no extension)
 *  to assume the shtml_handler.
 *
 */

/* the default for / must be first */
SSPEC_MIMETABLE_START
	SSPEC_MIME_FUNC(".shtml", "text/html", shtml_handler),
	SSPEC_MIME(".html", "text/html"),
	SSPEC_MIME(".gif", "image/gif"),
	SSPEC_MIME(".cgi", "")
SSPEC_MIMETABLE_END


/*
 *  Each ledx contains a text string that is either
 *  "ledon.gif" or "ledoff.gif"  This string is toggled
 *  each time the ledxtoggle.cgi is requested from the
 *  browser.
 *
 */

char led_LED0[15];
char led_LED1[15];


/*
 *  Instead of sending other text back from the cgi's
 *  we have decided to redirect them to the original page.
 *  the cgi_redirectto forms a header which will redirect
 *  the browswer back to the main page.
 *
 */

int led_toggle0(HttpState* state)
{
   if (strcmp(led_LED0,"ledon.gif")==0)
   {
      strcpy(led_LED0,"ledoff.gif");
      ledOut(0, 1);
   }
   else
   {
      strcpy(led_LED0,"ledon.gif");
      ledOut(0, 0);
   }
   cgi_redirectto(state,REDIRECTTO);
   return 0;
}

int led_toggle1(HttpState* state)
{
   if (strcmp(led_LED1,"ledon.gif")==0)
   {
      strcpy(led_LED1,"ledoff.gif");
      ledOut(1, 1);
   }
   else
   {
      strcpy(led_LED1,"ledon.gif");
      ledOut(1, 0);
   }
   cgi_redirectto(state,REDIRECTTO);
   return 0;
}



SSPEC_RESOURCETABLE_START
	SSPEC_RESOURCE_XMEMFILE("/", index_html),
	SSPEC_RESOURCE_XMEMFILE("/index.shtml", index_html),
	SSPEC_RESOURCE_XMEMFILE("/showsrc.shtml", showsrc_shtml),
	SSPEC_RESOURCE_XMEMFILE("/rabbit1.gif", rabbit1_gif),
	SSPEC_RESOURCE_XMEMFILE("/ledon.gif", ledon_gif),
	SSPEC_RESOURCE_XMEMFILE("/ledoff.gif", ledoff_gif),
	SSPEC_RESOURCE_XMEMFILE("/button.gif", button_gif),
	SSPEC_RESOURCE_XMEMFILE("/ssi.c", ssi_c),
	SSPEC_RESOURCE_ROOTVAR("led_LED0", led_LED0, PTR16, "%s"),
	SSPEC_RESOURCE_ROOTVAR("led_LED1", led_LED1, PTR16, "%s"),
	SSPEC_RESOURCE_FUNCTION("/led_LED0.cgi", led_toggle0),
	SSPEC_RESOURCE_FUNCTION("/led_LED1.cgi", led_toggle1)
SSPEC_RESOURCETABLE_END



void main()
{
	// Initialize I/O to use PowerCoreFLEX prototyping board
	brdInit();


   sock_init();
   http_init();
   tcp_reserveport(80);

   // set the initial state of the LED's
   strcpy(led_LED0,"ledon.gif");   ledOut(0, 0);
   strcpy(led_LED1,"ledon.gif");   ledOut(1, 0);


   // process WEB page requests and update the LED's
   while (1)
   {
      http_handler();
   }
}

