2 FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
\r
5 ***************************************************************************
\r
7 * FreeRTOS tutorial books are available in pdf and paperback. *
\r
8 * Complete, revised, and edited pdf reference manuals are also *
\r
11 * Purchasing FreeRTOS documentation will not only help you, by *
\r
12 * ensuring you get running as quickly as possible and with an *
\r
13 * in-depth knowledge of how to use FreeRTOS, it will also help *
\r
14 * the FreeRTOS project to continue with its mission of providing *
\r
15 * professional grade, cross platform, de facto standard solutions *
\r
16 * for microcontrollers - completely free of charge! *
\r
18 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
\r
20 * Thank you for using FreeRTOS, and thank you for your support! *
\r
22 ***************************************************************************
\r
25 This file is part of the FreeRTOS distribution.
\r
27 FreeRTOS is free software; you can redistribute it and/or modify it under
\r
28 the terms of the GNU General Public License (version 2) as published by the
\r
29 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
\r
30 >>>NOTE<<< The modification to the GPL is included to allow you to
\r
31 distribute a combined work that includes FreeRTOS without being obliged to
\r
32 provide the source code for proprietary components outside of the FreeRTOS
\r
33 kernel. FreeRTOS is distributed in the hope that it will be useful, but
\r
34 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
\r
35 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
\r
36 more details. You should have received a copy of the GNU General Public
\r
37 License and the FreeRTOS license exception along with FreeRTOS; if not it
\r
38 can be viewed here: http://www.freertos.org/a00114.html and also obtained
\r
39 by writing to Richard Barry, contact details for whom are available on the
\r
44 ***************************************************************************
\r
46 * Having a problem? Start by reading the FAQ "My application does *
\r
47 * not run, what could be wrong? *
\r
49 * http://www.FreeRTOS.org/FAQHelp.html *
\r
51 ***************************************************************************
\r
54 http://www.FreeRTOS.org - Documentation, training, latest information,
\r
55 license and contact details.
\r
57 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
\r
58 including FreeRTOS+Trace - an indispensable productivity tool.
\r
60 Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
\r
61 the code with commercial support, indemnification, and middleware, under
\r
62 the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
\r
63 provide a safety engineered and independently SIL3 certified version under
\r
64 the SafeRTOS brand: http://www.SafeRTOS.com.
\r
68 Implements a simplistic WEB server. Every time a connection is made and
\r
69 data is received a dynamic page that shows the current TCP/IP statistics
\r
70 is generated and returned. The connection is then closed.
\r
72 This file was adapted from a FreeRTOS lwIP slip demo supplied by a third
\r
76 /* ------------------------ System includes ------------------------------- */
\r
79 /* ------------------------ FreeRTOS includes ----------------------------- */
\r
80 #include "FreeRTOS.h"
\r
84 /* ------------------------ lwIP includes --------------------------------- */
\r
85 #include "lwip/api.h"
\r
86 #include "lwip/tcpip.h"
\r
87 #include "lwip/ip.h"
\r
88 #include "lwip/memp.h"
\r
89 #include "lwip/stats.h"
\r
90 #include "netif/loopif.h"
\r
92 /* ------------------------ Project includes ------------------------------ */
\r
95 #include "HTTPDemo.h"
\r
97 /* ------------------------ Defines --------------------------------------- */
\r
98 /* The size of the buffer in which the dynamic WEB page is created. */
\r
99 #define webMAX_PAGE_SIZE ( 1024 ) /*FSL: buffer containing array*/
\r
101 /* Standard GET response. */
\r
102 #define webHTTP_OK "HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n"
\r
104 /* The port on which we listen. */
\r
105 #define webHTTP_PORT ( 80 )
\r
107 /* Delay on close error. */
\r
108 #define webSHORT_DELAY ( 10 )
\r
110 /* Format of the dynamic page that is returned on each connection. */
\r
111 #define webHTML_START \
\r
115 <BODY onLoad=\"window.setTimeout("location.href='index.html'",1000)\"bgcolor=\"#CCCCff\">\
\r
116 \r\n\r\nPage Hits = "
\r
118 #define webHTML_END \
\r
124 #if INCLUDE_uxTaskGetStackHighWaterMark
\r
125 static volatile unsigned portBASE_TYPE uxHighWaterMark_web = 0;
\r
128 /* ------------------------ Prototypes ------------------------------------ */
\r
129 static void vProcessConnection( struct netconn *pxNetCon );
\r
131 /*------------------------------------------------------------*/
\r
134 * Process an incoming connection on port 80.
\r
136 * This simply checks to see if the incoming data contains a GET request, and
\r
137 * if so sends back a single dynamically created page. The connection is then
\r
138 * closed. A more complete implementation could create a task for each
\r
141 static void vProcessConnection( struct netconn *pxNetCon )
\r
143 static portCHAR cDynamicPage[webMAX_PAGE_SIZE], cPageHits[11];
\r
144 struct netbuf *pxRxBuffer;
\r
145 portCHAR *pcRxString;
\r
146 unsigned portSHORT usLength;
\r
147 static unsigned portLONG ulPageHits = 0;
\r
149 /* We expect to immediately get data. */
\r
150 pxRxBuffer = netconn_recv( pxNetCon );
\r
152 if( pxRxBuffer != NULL )
\r
154 /* Where is the data? */
\r
155 netbuf_data( pxRxBuffer, ( void * )&pcRxString, &usLength );
\r
157 /* Is this a GET? We don't handle anything else. */
\r
158 if( !strncmp( pcRxString, "GET", 3 ) )
\r
160 pcRxString = cDynamicPage;
\r
162 /* Update the hit count. */
\r
164 sprintf( cPageHits, "%d", (int)ulPageHits );
\r
166 /* Write out the HTTP OK header. */
\r
167 netconn_write( pxNetCon, webHTTP_OK, ( u16_t ) strlen( webHTTP_OK ), NETCONN_COPY );
\r
169 /* Generate the dynamic page...
\r
171 ... First the page header. */
\r
172 strcpy( cDynamicPage, webHTML_START );
\r
173 /* ... Then the hit count... */
\r
174 strcat( cDynamicPage, cPageHits );
\r
176 strcat( cDynamicPage,
\r
177 "<p><pre>Task State Priority Stack #<br>************************************************<br>" );
\r
178 /* ... Then the list of tasks and their status... */
\r
179 vTaskList( ( signed portCHAR * )cDynamicPage + strlen( cDynamicPage ) );
\r
181 /* ... Finally the page footer. */
\r
182 strcat( cDynamicPage, webHTML_END );
\r
184 /* Write out the dynamically generated page. */
\r
185 netconn_write( pxNetCon, cDynamicPage, ( u16_t ) strlen( cDynamicPage ), NETCONN_COPY );
\r
187 netbuf_delete( pxRxBuffer );
\r
189 netconn_close( pxNetCon );
\r
192 /*------------------------------------------------------------*/
\r
194 void vlwIPInit( void )
\r
196 /* Initialize lwIP and its interface layer. */
\r
197 tcpip_init( NULL, NULL );
\r
200 /*------------------------------------------------------------*/
\r
202 void vBasicWEBServer( void *pvParameters )
\r
204 struct netconn *pxHTTPListener, *pxNewConnection;
\r
205 struct ip_addr xIpAddr, xNetMast, xGateway;
\r
206 static struct netif fec523x_if;
\r
207 extern err_t ethernetif_init(struct netif *netif);
\r
209 /* Parameters are not used - suppress compiler error. */
\r
210 ( void )pvParameters;
\r
214 /* Create and configure the FEC interface. */
\r
215 IP4_ADDR( &xIpAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
\r
216 IP4_ADDR( &xNetMast, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
\r
217 IP4_ADDR( &xGateway, configGW_ADDR0, configGW_ADDR1, configGW_ADDR2, configGW_ADDR3 );
\r
218 netif_add( &fec523x_if, &xIpAddr, &xNetMast, &xGateway, NULL, ethernetif_init, tcpip_input );
\r
220 /* make it the default interface */
\r
221 netif_set_default( &fec523x_if );
\r
224 netif_set_up( &fec523x_if );
\r
226 /* Create a new tcp connection handle */
\r
227 pxHTTPListener = netconn_new( NETCONN_TCP );
\r
228 netconn_bind( pxHTTPListener, NULL, webHTTP_PORT );
\r
229 netconn_listen( pxHTTPListener );
\r
234 /* Wait for connection. */
\r
235 pxNewConnection = netconn_accept( pxHTTPListener );
\r
237 if( pxNewConnection != NULL )
\r
239 /* Service connection. */
\r
240 vProcessConnection( pxNewConnection );
\r
241 while( netconn_delete( pxNewConnection ) != ERR_OK )
\r
243 vTaskDelay( webSHORT_DELAY );
\r