2 FreeRTOS V7.5.1 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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6 ***************************************************************************
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8 * FreeRTOS provides completely free yet professionally developed, *
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9 * robust, strictly quality controlled, supported, and cross *
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10 * platform software that has become a de facto standard. *
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12 * Help yourself get started quickly and support the FreeRTOS *
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13 * project by purchasing a FreeRTOS tutorial book, reference *
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14 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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18 ***************************************************************************
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20 This file is part of the FreeRTOS distribution.
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22 FreeRTOS is free software; you can redistribute it and/or modify it under
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23 the terms of the GNU General Public License (version 2) as published by the
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24 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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26 >>! NOTE: The modification to the GPL is included to allow you to distribute
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27 >>! a combined work that includes FreeRTOS without being obliged to provide
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28 >>! the source code for proprietary components outside of the FreeRTOS
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31 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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32 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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33 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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34 link: http://www.freertos.org/a00114.html
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38 ***************************************************************************
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40 * Having a problem? Start by reading the FAQ "My application does *
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41 * not run, what could be wrong?" *
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43 * http://www.FreeRTOS.org/FAQHelp.html *
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45 ***************************************************************************
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47 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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48 license and Real Time Engineers Ltd. contact details.
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50 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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51 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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52 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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54 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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55 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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56 licenses offer ticketed support, indemnification and middleware.
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58 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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59 engineered and independently SIL3 certified version for use in safety and
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60 mission critical applications that require provable dependability.
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66 /* Task that controls the uIP TCP/IP stack. */
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69 /* Standard includes. */
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72 /* Scheduler includes. */
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73 #include "FreeRTOS.h"
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79 #include "uip_arp.h"
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82 #include "clock-arch.h"
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84 /* Demo includes. */
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86 #include "partest.h"
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89 /*-----------------------------------------------------------*/
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91 /* Shortcut to the header within the Rx buffer. */
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92 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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94 /*-----------------------------------------------------------*/
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97 * Port functions required by the uIP stack.
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99 void clock_init( void );
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100 clock_time_t clock_time( void );
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101 extern void timer_set(struct timer *t, clock_time_t interval);
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102 extern int timer_expired(struct timer *t);
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103 extern void timer_reset(struct timer *t);
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105 /*-----------------------------------------------------------*/
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107 /* The semaphore used by the ISR to wake the uIP task. */
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108 extern xSemaphoreHandle xFECSemaphore;
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110 /*-----------------------------------------------------------*/
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112 void clock_init(void)
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114 /* This is done when the scheduler starts. */
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116 /*-----------------------------------------------------------*/
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118 /* Define clock functions here to avoid header file name clash between uIP
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119 and the Luminary Micro driver library. */
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120 clock_time_t clock_time( void )
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122 return xTaskGetTickCount();
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124 /*-----------------------------------------------------------*/
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126 void vuIP_Task( void *pvParameters )
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129 uip_ipaddr_t xIPAddr;
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130 struct timer periodic_timer, arp_timer;
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132 /* To prevent compiler warnings. */
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133 ( void ) pvParameters;
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135 /* Initialise the uIP stack. */
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136 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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137 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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139 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
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140 uip_sethostaddr( xIPAddr );
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142 /* Initialise the WEB server. */
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145 /* Initialise the Ethernet controller peripheral. */
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150 /* Is there received data ready to be processed? */
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151 uip_len = usFECGetRxedData();
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155 /* Standard uIP loop taken from the uIP manual. */
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157 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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162 /* If the above function invocation resulted in data that
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163 should be sent out on the network, the global variable
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164 uip_len is set to a value > 0. */
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172 /* If we are not sending data then let the FEC driver know
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173 the buffer is no longer required. */
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174 vFECRxProcessingCompleted();
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177 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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181 /* If the above function invocation resulted in data that
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182 should be sent out on the network, the global variable
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183 uip_len is set to a value > 0. */
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190 /* If we are not sending data then let the FEC driver know
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191 the buffer is no longer required. */
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192 vFECRxProcessingCompleted();
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197 /* If we are not sending data then let the FEC driver know
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198 the buffer is no longer required. */
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199 vFECRxProcessingCompleted();
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204 if( timer_expired( &periodic_timer ) )
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206 timer_reset( &periodic_timer );
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207 for( i = 0; i < UIP_CONNS; i++ )
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211 /* If the above function invocation resulted in data that
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212 should be sent out on the network, the global variable
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213 uip_len is set to a value > 0. */
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221 /* Call the ARP timer function every 10 seconds. */
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222 if( timer_expired( &arp_timer ) )
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224 timer_reset( &arp_timer );
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230 /* We did not receive a packet, and there was no periodic
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231 processing to perform. Block for a fixed period. If a packet
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232 is received during this period we will be woken by the ISR
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233 giving us the Semaphore. */
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234 xSemaphoreTake( xFECSemaphore, configTICK_RATE_HZ / 2 );
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239 /*-----------------------------------------------------------*/
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