2 FreeRTOS V6.0.0 - Copyright (C) 2009 Real Time Engineers Ltd.
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4 This file is part of the FreeRTOS distribution.
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6 FreeRTOS is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License (version 2) as published by the
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8 Free Software Foundation and modified by the FreeRTOS exception.
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9 **NOTE** The exception to the GPL is included to allow you to distribute a
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10 combined work that includes FreeRTOS without being obliged to provide the
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11 source code for proprietary components outside of the FreeRTOS kernel.
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12 Alternative commercial license and support terms are also available upon
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13 request. See the licensing section of http://www.FreeRTOS.org for full
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16 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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21 You should have received a copy of the GNU General Public License along
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22 with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
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23 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 ***************************************************************************
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28 * The FreeRTOS eBook and reference manual are available to purchase for a *
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29 * small fee. Help yourself get started quickly while also helping the *
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30 * FreeRTOS project! See http://www.FreeRTOS.org/Documentation for details *
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32 ***************************************************************************
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36 Please ensure to read the configuration and relevant port sections of the
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37 online documentation.
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39 http://www.FreeRTOS.org - Documentation, latest information, license and
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42 http://www.SafeRTOS.com - A version that is certified for use in safety
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45 http://www.OpenRTOS.com - Commercial support, development, porting,
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46 licensing and training services.
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50 /* Task that controls the uIP TCP/IP stack. */
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53 /* Standard includes. */
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56 /* Scheduler includes. */
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57 #include "FreeRTOS.h"
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63 #include "uip_arp.h"
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66 #include "clock-arch.h"
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68 /* Demo includes. */
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70 #include "partest.h"
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73 /*-----------------------------------------------------------*/
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75 /* Shortcut to the header within the Rx buffer. */
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76 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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78 /*-----------------------------------------------------------*/
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81 * Port functions required by the uIP stack.
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83 void clock_init( void );
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84 clock_time_t clock_time( void );
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85 extern void timer_set(struct timer *t, clock_time_t interval);
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86 extern int timer_expired(struct timer *t);
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87 extern void timer_reset(struct timer *t);
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89 /*-----------------------------------------------------------*/
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91 /* The semaphore used by the ISR to wake the uIP task. */
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92 extern xSemaphoreHandle xFECSemaphore;
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94 /*-----------------------------------------------------------*/
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96 void clock_init(void)
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98 /* This is done when the scheduler starts. */
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100 /*-----------------------------------------------------------*/
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102 /* Define clock functions here to avoid header file name clash between uIP
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103 and the Luminary Micro driver library. */
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104 clock_time_t clock_time( void )
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106 return xTaskGetTickCount();
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108 /*-----------------------------------------------------------*/
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110 void vuIP_Task( void *pvParameters )
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113 uip_ipaddr_t xIPAddr;
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114 struct timer periodic_timer, arp_timer;
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116 /* To prevent compiler warnings. */
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117 ( void ) pvParameters;
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119 /* Initialise the uIP stack. */
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120 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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121 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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123 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
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124 uip_sethostaddr( xIPAddr );
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126 /* Initialise the WEB server. */
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129 /* Initialise the Ethernet controller peripheral. */
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134 /* Is there received data ready to be processed? */
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135 uip_len = usFECGetRxedData();
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139 /* Standard uIP loop taken from the uIP manual. */
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141 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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146 /* If the above function invocation resulted in data that
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147 should be sent out on the network, the global variable
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148 uip_len is set to a value > 0. */
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156 /* If we are not sending data then let the FEC driver know
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157 the buffer is no longer required. */
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158 vFECRxProcessingCompleted();
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161 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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165 /* If the above function invocation resulted in data that
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166 should be sent out on the network, the global variable
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167 uip_len is set to a value > 0. */
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174 /* If we are not sending data then let the FEC driver know
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175 the buffer is no longer required. */
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176 vFECRxProcessingCompleted();
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181 /* If we are not sending data then let the FEC driver know
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182 the buffer is no longer required. */
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183 vFECRxProcessingCompleted();
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188 if( timer_expired( &periodic_timer ) )
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190 timer_reset( &periodic_timer );
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191 for( i = 0; i < UIP_CONNS; i++ )
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195 /* If the above function invocation resulted in data that
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196 should be sent out on the network, the global variable
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197 uip_len is set to a value > 0. */
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205 /* Call the ARP timer function every 10 seconds. */
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206 if( timer_expired( &arp_timer ) )
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208 timer_reset( &arp_timer );
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214 /* We did not receive a packet, and there was no periodic
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215 processing to perform. Block for a fixed period. If a packet
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216 is received during this period we will be woken by the ISR
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217 giving us the Semaphore. */
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218 xSemaphoreTake( xFECSemaphore, configTICK_RATE_HZ / 2 );
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223 /*-----------------------------------------------------------*/
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