2 * FreeRTOS Kernel V10.2.1
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3 * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software.
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 * http://www.FreeRTOS.org
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23 * http://aws.amazon.com/freertos
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25 * 1 tab == 4 spaces!
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28 /* Standard includes. */
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31 /* Scheduler includes. */
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32 #include "FreeRTOS.h"
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38 #include "uip_arp.h"
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41 #include "clock-arch.h"
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44 /* Demo includes. */
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46 #include "partest.h"
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48 /*-----------------------------------------------------------*/
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50 /* Shortcut to the header within the Rx buffer. */
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51 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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53 /*-----------------------------------------------------------*/
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56 * Port functions required by the uIP stack.
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58 clock_time_t clock_time( void );
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60 /*-----------------------------------------------------------*/
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62 /* The semaphore used by the ISR to wake the uIP task. */
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63 extern SemaphoreHandle_t xFECSemaphore;
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65 /*-----------------------------------------------------------*/
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67 clock_time_t clock_time( void )
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69 return xTaskGetTickCount();
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73 void vuIP_Task( void *pvParameters )
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76 uip_ipaddr_t xIPAddr;
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77 struct timer periodic_timer, arp_timer;
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78 extern void ( vEMAC_ISR )( void );
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80 /* Just to get rid of the compiler warning. */
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81 ( void ) pvParameters;
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83 /* Enable/Reset the Ethernet Controller */
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85 /* Create the semaphore used by the ISR to wake this task. */
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86 vSemaphoreCreateBinary( xFECSemaphore );
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88 /* Initialise the uIP stack. */
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89 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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90 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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92 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
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93 uip_sethostaddr( xIPAddr );
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94 uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
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95 uip_setnetmask( xIPAddr );
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102 /* Is there received data ready to be processed? */
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103 uip_len = ( unsigned short ) ulFECRx();
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105 if( ( uip_len > 0 ) && ( uip_buf != NULL ) )
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107 /* Standard uIP loop taken from the uIP manual. */
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109 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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114 /* If the above function invocation resulted in data that
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115 should be sent out on the network, the global variable
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116 uip_len is set to a value > 0. */
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123 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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127 /* If the above function invocation resulted in data that
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128 should be sent out on the network, the global variable
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129 uip_len is set to a value > 0. */
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138 if( ( timer_expired( &periodic_timer ) ) && ( uip_buf != NULL ) )
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140 timer_reset( &periodic_timer );
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141 for( i = 0; i < UIP_CONNS; i++ )
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145 /* If the above function invocation resulted in data that
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146 should be sent out on the network, the global variable
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147 uip_len is set to a value > 0. */
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155 /* Call the ARP timer function every 10 seconds. */
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156 if( timer_expired( &arp_timer ) )
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158 timer_reset( &arp_timer );
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164 /* We did not receive a packet, and there was no periodic
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165 processing to perform. Block for a fixed period. If a packet
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166 is received during this period we will be woken by the ISR
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167 giving us the Semaphore. */
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168 xSemaphoreTake( xFECSemaphore, configTICK_RATE_HZ / 2 );
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173 /*-----------------------------------------------------------*/
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175 void vApplicationProcessFormInput( char *pcInputString, portBASE_TYPE xInputLength )
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179 /* Just to get rid of the compiler warning - other ports/demos use the parameter. */
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180 ( void ) xInputLength;
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182 /* Process the form input sent by the IO page of the served HTML. */
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184 c = strstr( pcInputString, "?" );
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188 /* Turn LED's on or off in accordance with the check box status. */
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189 if( strstr( c, "LED3=1" ) != NULL )
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191 /* Turn LED 3 on. */
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192 vParTestSetLED( 3, 1 );
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196 /* Turn LED 3 off. */
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197 vParTestSetLED( 3, 0 );
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