2 FreeRTOS V8.1.1 - Copyright (C) 2014 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS provides completely free yet professionally developed, *
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10 * robust, strictly quality controlled, supported, and cross *
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11 * platform software that has become a de facto standard. *
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13 * Help yourself get started quickly and support the FreeRTOS *
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14 * project by purchasing a FreeRTOS tutorial book, reference *
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15 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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19 ***************************************************************************
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21 This file is part of the FreeRTOS distribution.
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23 FreeRTOS is free software; you can redistribute it and/or modify it under
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24 the terms of the GNU General Public License (version 2) as published by the
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25 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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27 >>! NOTE: The modification to the GPL is included to allow you to !<<
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28 >>! distribute a combined work that includes FreeRTOS without being !<<
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29 >>! obliged to provide the source code for proprietary components !<<
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30 >>! outside of the FreeRTOS kernel. !<<
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32 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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33 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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34 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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35 link: http://www.freertos.org/a00114.html
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39 ***************************************************************************
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41 * Having a problem? Start by reading the FAQ "My application does *
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42 * not run, what could be wrong?" *
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44 * http://www.FreeRTOS.org/FAQHelp.html *
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46 ***************************************************************************
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48 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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49 license and Real Time Engineers Ltd. contact details.
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51 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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52 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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53 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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55 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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56 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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57 licenses offer ticketed support, indemnification and middleware.
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59 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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60 engineered and independently SIL3 certified version for use in safety and
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61 mission critical applications that require provable dependability.
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66 /* Standard includes. */
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69 /* Scheduler includes. */
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70 #include "FreeRTOS.h"
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74 /* Demo includes. */
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76 #include "partest.h"
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80 #include "uip_arp.h"
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83 #include "clock-arch.h"
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85 /*-----------------------------------------------------------*/
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87 /* How long to wait before attempting to connect the MAC again. */
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88 #define uipINIT_WAIT ( 100 / portTICK_PERIOD_MS )
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90 /* Shortcut to the header within the Rx buffer. */
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91 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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93 /* Standard constant. */
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94 #define uipTOTAL_FRAME_HEADER_SIZE 54
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97 /*-----------------------------------------------------------*/
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100 * Setup the MAC address in the MAC itself, and in the uIP stack.
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102 static void prvSetMACAddress( void );
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105 * Port functions required by the uIP stack.
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107 void clock_init( void );
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108 clock_time_t clock_time( void );
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110 /*-----------------------------------------------------------*/
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112 /* The semaphore used by the ISR to wake the uIP task. */
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113 SemaphoreHandle_t xEMACSemaphore;
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115 /* The buffer used by the uIP stack. In this case the pointer is used to
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116 point to one of the Rx buffers. */
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117 unsigned char *uip_buf = NULL;
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119 /*-----------------------------------------------------------*/
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121 void clock_init(void)
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123 /* This is done when the scheduler starts. */
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125 /*-----------------------------------------------------------*/
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127 clock_time_t clock_time( void )
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129 return xTaskGetTickCount();
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131 /*-----------------------------------------------------------*/
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133 void vuIP_Task( void *pvParameters )
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136 uip_ipaddr_t xIPAddr;
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137 struct timer periodic_timer, arp_timer;
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139 ( void ) pvParameters;
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141 /* Create the semaphore used by the ISR to wake this task. */
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142 vSemaphoreCreateBinary( xEMACSemaphore );
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144 /* Initialise the uIP stack. */
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145 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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146 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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148 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
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149 uip_sethostaddr( xIPAddr );
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150 uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
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151 uip_setnetmask( xIPAddr );
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154 /* Initialise the MAC. */
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155 while( xEthInitialise() != pdPASS )
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157 vTaskDelay( uipINIT_WAIT );
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160 prvSetMACAddress();
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164 /* Is there received data ready to be processed? */
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165 uip_len = usGetMACRxData();
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167 if( ( uip_len > 0 ) && ( uip_buf != NULL ) )
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169 /* Standard uIP loop taken from the uIP manual. */
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170 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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175 /* If the above function invocation resulted in data that
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176 should be sent out on the network, the global variable
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177 uip_len is set to a value > 0. */
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181 vSendMACData( uip_len );
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184 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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188 /* If the above function invocation resulted in data that
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189 should be sent out on the network, the global variable
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190 uip_len is set to a value > 0. */
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193 vSendMACData( uip_len );
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199 if( ( timer_expired( &periodic_timer ) ) && ( uip_buf != NULL ) )
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201 timer_reset( &periodic_timer );
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202 for( i = 0; i < UIP_CONNS; i++ )
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206 /* If the above function invocation resulted in data that
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207 should be sent out on the network, the global variable
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208 uip_len is set to a value > 0. */
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212 vSendMACData( uip_len );
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216 /* Call the ARP timer function every 10 seconds. */
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217 if( timer_expired( &arp_timer ) )
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219 timer_reset( &arp_timer );
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225 /* We did not receive a packet, and there was no periodic
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226 processing to perform. Block for a fixed period. If a packet
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227 is received during this period we will be woken by the ISR
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228 giving us the Semaphore. */
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229 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
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234 /*-----------------------------------------------------------*/
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236 static void prvSetMACAddress( void )
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238 struct uip_eth_addr xAddr;
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240 /* Configure the MAC address in the uIP stack. */
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241 xAddr.addr[ 0 ] = configMAC_ADDR0;
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242 xAddr.addr[ 1 ] = configMAC_ADDR1;
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243 xAddr.addr[ 2 ] = configMAC_ADDR2;
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244 xAddr.addr[ 3 ] = configMAC_ADDR3;
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245 xAddr.addr[ 4 ] = configMAC_ADDR4;
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246 xAddr.addr[ 5 ] = configMAC_ADDR5;
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247 uip_setethaddr( xAddr );
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249 /*-----------------------------------------------------------*/
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251 void vApplicationProcessFormInput( char *pcInputString )
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254 static char cMessageForDisplay[ 32 ];
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255 static const char *pcMessage = cMessageForDisplay;
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256 extern QueueHandle_t xLCDQueue;
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258 /* Process the form input sent by the IO page of the served HTML. */
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260 c = strstr( pcInputString, "?" );
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263 /* Turn LED's on or off in accordance with the check box status. */
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264 if( strstr( c, "LED0=1" ) != NULL )
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267 vParTestSetLED( 3, 1 );
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272 vParTestSetLED( 3, 0 );
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275 /* Find the start of the text to be displayed on the LCD. */
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276 pcText = strstr( c, "LCD=" );
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277 pcText += strlen( "LCD=" );
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279 /* Terminate the file name for further processing within uIP. */
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282 /* Terminate the LCD string. */
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283 c = strstr( pcText, " " );
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289 /* Add required spaces. */
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290 while( ( c = strstr( pcText, "+" ) ) != NULL )
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295 /* Write the message to the LCD. */
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296 strcpy( cMessageForDisplay, pcText );
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297 xQueueSend( xLCDQueue, &pcMessage, portMAX_DELAY );
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