begriffs open source - cmsis-freertos/blob - Demo/ColdFire_MCF52259

1 /*

4

5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.

6

7 This file is part of the FreeRTOS distribution.

8

9 FreeRTOS is free software; you can redistribute it and/or modify it under

10 the terms of the GNU General Public License (version 2) as published by the

11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.

12

13 ***************************************************************************

14 >>! NOTE: The modification to the GPL is included to allow you to !<<

15 >>! distribute a combined work that includes FreeRTOS without being !<<

16 >>! obliged to provide the source code for proprietary components !<<

17 >>! outside of the FreeRTOS kernel. !<<

18 ***************************************************************************

19

20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY

21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

22 FOR A PARTICULAR PURPOSE. Full license text is available on the following

23 link: http://www.freertos.org/a00114.html

24

25 ***************************************************************************

26 * *

27 * FreeRTOS provides completely free yet professionally developed, *

28 * robust, strictly quality controlled, supported, and cross *

29 * platform software that is more than just the market leader, it *

30 * is the industry's de facto standard. *

31 * *

32 * Help yourself get started quickly while simultaneously helping *

33 * to support the FreeRTOS project by purchasing a FreeRTOS *

34 * tutorial book, reference manual, or both: *

35 * http://www.FreeRTOS.org/Documentation *

36 * *

37 ***************************************************************************

38

39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading

40 the FAQ page "My application does not run, what could be wrong?". Have you

41 defined configASSERT()?

42

43 http://www.FreeRTOS.org/support - In return for receiving this top quality

44 embedded software for free we request you assist our global community by

45 participating in the support forum.

46

47 http://www.FreeRTOS.org/training - Investing in training allows your team to

48 be as productive as possible as early as possible. Now you can receive

49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers

50 Ltd, and the world's leading authority on the world's leading RTOS.

51

52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,

53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS

54 compatible FAT file system, and our tiny thread aware UDP/IP stack.

55

56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.

57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.

58

59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High

60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS

61 licenses offer ticketed support, indemnification and commercial middleware.

62

63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety

64 engineered and independently SIL3 certified version for use in safety and

65 mission critical applications that require provable dependability.

66

67 1 tab == 4 spaces!

68 */

69

70 /*

71 Implements a simplistic WEB server. Every time a connection is made and

72 data is received a dynamic page that shows the current TCP/IP statistics

73 is generated and returned. The connection is then closed.

74

75 This file was adapted from a FreeRTOS lwIP slip demo supplied by a third

76 party.

77 */

78

79 /* ------------------------ System includes ------------------------------- */

80

81

82 /* ------------------------ FreeRTOS includes ----------------------------- */

83 #include "FreeRTOS.h"

84 #include "task.h"

85 #include "semphr.h"

86

87 /* ------------------------ lwIP includes --------------------------------- */

88 #include "lwip/api.h"

89 #include "lwip/tcpip.h"

90 #include "lwip/ip.h"

91 #include "lwip/memp.h"

92 #include "lwip/stats.h"

93 #include "netif/loopif.h"

94

95 /* ------------------------ Project includes ------------------------------ */

96 #include "common.h"

97

98 #include "HTTPDemo.h"

99

100 /* ------------------------ Defines --------------------------------------- */

101 /* The size of the buffer in which the dynamic WEB page is created. */

102 #define webMAX_PAGE_SIZE ( 1024 ) /*FSL: buffer containing array*/

103

104 /* Standard GET response. */

105 #define webHTTP_OK "HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n"

106

107 /* The port on which we listen. */

108 #define webHTTP_PORT ( 80 )

109

110 /* Delay on close error. */

111 #define webSHORT_DELAY ( 10 )

112

113 /* Format of the dynamic page that is returned on each connection. */

114 #define webHTML_START \

115 "<html>\

116 <head>\

117 </head>\

118 <BODY onLoad=\"window.setTimeout("location.href='index.html'",1000)\"bgcolor=\"#CCCCff\">\

119 \r\n\r\nPage Hits = "

120

121 #define webHTML_END \

122 "\r\n" \

123 "</pre>\r\n" \

124 "</BODY>\r\n" \

125 "</html>"

126

127 #if INCLUDE_uxTaskGetStackHighWaterMark

128 static volatile unsigned portBASE_TYPE uxHighWaterMark_web = 0;

129 #endif

130

131 /* ------------------------ Prototypes ------------------------------------ */

132 static void vProcessConnection( struct netconn *pxNetCon );

133

134 /*------------------------------------------------------------*/

135

136 /*

137 * Process an incoming connection on port 80.

138 *

139 * This simply checks to see if the incoming data contains a GET request, and

140 * if so sends back a single dynamically created page. The connection is then

141 * closed. A more complete implementation could create a task for each

142 * connection.

143 */

144 static void vProcessConnection( struct netconn *pxNetCon )

145 {

146 static char cDynamicPage[webMAX_PAGE_SIZE], cPageHits[11];

147 struct netbuf *pxRxBuffer;

148 char *pcRxString;

149 unsigned short usLength;

150 static unsigned long ulPageHits = 0;

151

152 /* We expect to immediately get data. */

153 pxRxBuffer = netconn_recv( pxNetCon );

154

155 if( pxRxBuffer != NULL )

156 {

157 /* Where is the data? */

158 netbuf_data( pxRxBuffer, ( void * )&pcRxString, &usLength );

159

160 /* Is this a GET? We don't handle anything else. */

161 if( !strncmp( pcRxString, "GET", 3 ) )

162 {

163 pcRxString = cDynamicPage;

164

165 /* Update the hit count. */

166 ulPageHits++;

167 sprintf( cPageHits, "%d", (int)ulPageHits );

168

169 /* Write out the HTTP OK header. */

170 netconn_write( pxNetCon, webHTTP_OK, ( u16_t ) strlen( webHTTP_OK ), NETCONN_COPY );

171

172 /* Generate the dynamic page...

173

174 ... First the page header. */

175 strcpy( cDynamicPage, webHTML_START );

176 /* ... Then the hit count... */

177 strcat( cDynamicPage, cPageHits );

178

179 strcat( cDynamicPage,

180 "<p><pre>Task State Priority Stack #<br>************************************************<br>" );

181 /* ... Then the list of tasks and their status... */

182 vTaskList( cDynamicPage + strlen( cDynamicPage ) );

183

184 /* ... Finally the page footer. */

185 strcat( cDynamicPage, webHTML_END );

186

187 /* Write out the dynamically generated page. */

188 netconn_write( pxNetCon, cDynamicPage, ( u16_t ) strlen( cDynamicPage ), NETCONN_COPY );

189 }

190 netbuf_delete( pxRxBuffer );

191 }

192 netconn_close( pxNetCon );

193 }

194

195 /*------------------------------------------------------------*/

196

197 void vlwIPInit( void )

198 {

199 /* Initialize lwIP and its interface layer. */

200 tcpip_init( NULL, NULL );

201 }

202

203 /*------------------------------------------------------------*/

204

205 void vBasicWEBServer( void *pvParameters )

206 {

207 struct netconn *pxHTTPListener, *pxNewConnection;

208 struct ip_addr xIpAddr, xNetMast, xGateway;

209 static struct netif fec523x_if;

210 extern err_t ethernetif_init(struct netif *netif);

211

212 /* Parameters are not used - suppress compiler error. */

213 ( void )pvParameters;

214

215 vlwIPInit();

216

217 /* Create and configure the FEC interface. */

218 IP4_ADDR( &xIpAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );

219 IP4_ADDR( &xNetMast, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );

220 IP4_ADDR( &xGateway, configGW_ADDR0, configGW_ADDR1, configGW_ADDR2, configGW_ADDR3 );

221 netif_add( &fec523x_if, &xIpAddr, &xNetMast, &xGateway, NULL, ethernetif_init, tcpip_input );

222

223 /* make it the default interface */

224 netif_set_default( &fec523x_if );

225

226 /* bring it up */

227 netif_set_up( &fec523x_if );

228

229 /* Create a new tcp connection handle */

230 pxHTTPListener = netconn_new( NETCONN_TCP );

231 netconn_bind( pxHTTPListener, NULL, webHTTP_PORT );

232 netconn_listen( pxHTTPListener );

233

234 /* Loop forever */

235 for( ;; )

236 {

237 /* Wait for connection. */

238 pxNewConnection = netconn_accept( pxHTTPListener );

239

240 if( pxNewConnection != NULL )

241 {

242 /* Service connection. */

243 vProcessConnection( pxNewConnection );

244 while( netconn_delete( pxNewConnection ) != ERR_OK )

245 {

246 vTaskDelay( webSHORT_DELAY );

247 }

248 }

249 }

250 }