2 FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
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5 http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS tutorial books are available in pdf and paperback. *
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10 * Complete, revised, and edited pdf reference manuals are also *
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13 * Purchasing FreeRTOS documentation will not only help you, by *
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14 * ensuring you get running as quickly as possible and with an *
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15 * in-depth knowledge of how to use FreeRTOS, it will also help *
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16 * the FreeRTOS project to continue with its mission of providing *
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17 * professional grade, cross platform, de facto standard solutions *
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18 * for microcontrollers - completely free of charge! *
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20 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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22 * Thank you for using FreeRTOS, and thank you for your support! *
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24 ***************************************************************************
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27 This file is part of the FreeRTOS distribution.
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29 FreeRTOS is free software; you can redistribute it and/or modify it under
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30 the terms of the GNU General Public License (version 2) as published by the
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31 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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33 >>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
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34 distribute a combined work that includes FreeRTOS without being obliged to
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35 provide the source code for proprietary components outside of the FreeRTOS
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38 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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39 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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40 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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41 details. You should have received a copy of the GNU General Public License
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42 and the FreeRTOS license exception along with FreeRTOS; if not itcan be
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43 viewed here: http://www.freertos.org/a00114.html and also obtained by
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44 writing to Real Time Engineers Ltd., contact details for whom are available
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45 on the FreeRTOS WEB site.
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49 ***************************************************************************
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51 * Having a problem? Start by reading the FAQ "My application does *
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52 * not run, what could be wrong?" *
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54 * http://www.FreeRTOS.org/FAQHelp.html *
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56 ***************************************************************************
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59 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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60 license and Real Time Engineers Ltd. contact details.
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62 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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63 including FreeRTOS+Trace - an indispensable productivity tool, and our new
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64 fully thread aware and reentrant UDP/IP stack.
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66 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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67 Integrity Systems, who sell the code with commercial support,
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68 indemnification and middleware, under the OpenRTOS brand.
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70 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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71 engineered and independently SIL3 certified version for use in safety and
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72 mission critical applications that require provable dependability.
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76 /* Task that controls the uIP TCP/IP stack. */
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79 /* Standard includes. */
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82 /* Scheduler includes. */
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83 #include "FreeRTOS.h"
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89 #include "uip_arp.h"
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92 #include "clock-arch.h"
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94 /* Demo includes. */
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96 #include "partest.h"
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99 /*-----------------------------------------------------------*/
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101 /* Shortcut to the header within the Rx buffer. */
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102 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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104 /*-----------------------------------------------------------*/
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107 * Port functions required by the uIP stack.
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109 void clock_init( void );
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110 clock_time_t clock_time( void );
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111 extern void timer_set(struct timer *t, clock_time_t interval);
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112 extern int timer_expired(struct timer *t);
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113 extern void timer_reset(struct timer *t);
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115 /*-----------------------------------------------------------*/
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117 /* The semaphore used by the ISR to wake the uIP task. */
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118 extern xSemaphoreHandle xFECSemaphore;
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120 /*-----------------------------------------------------------*/
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122 void clock_init(void)
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124 /* This is done when the scheduler starts. */
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126 /*-----------------------------------------------------------*/
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128 /* Define clock functions here to avoid header file name clash between uIP
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129 and the Luminary Micro driver library. */
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130 clock_time_t clock_time( void )
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132 return xTaskGetTickCount();
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134 /*-----------------------------------------------------------*/
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136 void vuIP_Task( void *pvParameters )
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139 uip_ipaddr_t xIPAddr;
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140 struct timer periodic_timer, arp_timer;
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142 /* To prevent compiler warnings. */
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143 ( void ) pvParameters;
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145 /* Initialise the uIP stack. */
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146 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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147 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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149 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
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150 uip_sethostaddr( xIPAddr );
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152 /* Initialise the WEB server. */
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155 /* Initialise the Ethernet controller peripheral. */
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160 /* Is there received data ready to be processed? */
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161 uip_len = usFECGetRxedData();
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165 /* Standard uIP loop taken from the uIP manual. */
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167 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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172 /* If the above function invocation resulted in data that
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173 should be sent out on the network, the global variable
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174 uip_len is set to a value > 0. */
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182 /* If we are not sending data then let the FEC driver know
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183 the buffer is no longer required. */
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184 vFECRxProcessingCompleted();
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187 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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191 /* If the above function invocation resulted in data that
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192 should be sent out on the network, the global variable
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193 uip_len is set to a value > 0. */
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200 /* If we are not sending data then let the FEC driver know
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201 the buffer is no longer required. */
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202 vFECRxProcessingCompleted();
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207 /* If we are not sending data then let the FEC driver know
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208 the buffer is no longer required. */
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209 vFECRxProcessingCompleted();
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214 if( timer_expired( &periodic_timer ) )
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216 timer_reset( &periodic_timer );
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217 for( i = 0; i < UIP_CONNS; i++ )
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221 /* If the above function invocation resulted in data that
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222 should be sent out on the network, the global variable
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223 uip_len is set to a value > 0. */
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231 /* Call the ARP timer function every 10 seconds. */
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232 if( timer_expired( &arp_timer ) )
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234 timer_reset( &arp_timer );
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240 /* We did not receive a packet, and there was no periodic
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241 processing to perform. Block for a fixed period. If a packet
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242 is received during this period we will be woken by the ISR
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243 giving us the Semaphore. */
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244 xSemaphoreTake( xFECSemaphore, configTICK_RATE_HZ / 2 );
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249 /*-----------------------------------------------------------*/
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