2 * FreeRTOS Kernel V10.0.0
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3 * Copyright (C) 2017 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. If you wish to use our Amazon
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14 * FreeRTOS name, please do so in a fair use way that does not cause confusion.
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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18 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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19 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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23 * http://www.FreeRTOS.org
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24 * http://aws.amazon.com/freertos
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26 * 1 tab == 4 spaces!
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29 /* Standard includes. */
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32 /* Scheduler includes. */
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33 #include "FreeRTOS.h"
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39 #include "uip_arp.h"
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42 #include "clock-arch.h"
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45 /* Demo includes. */
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47 #include "partest.h"
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49 /*-----------------------------------------------------------*/
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51 /* Shortcut to the header within the Rx buffer. */
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52 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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54 /*-----------------------------------------------------------*/
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57 * Port functions required by the uIP stack.
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59 clock_time_t clock_time( void );
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61 /*-----------------------------------------------------------*/
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63 /* The semaphore used by the ISR to wake the uIP task. */
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64 extern SemaphoreHandle_t xFECSemaphore;
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66 /*-----------------------------------------------------------*/
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68 clock_time_t clock_time( void )
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70 return xTaskGetTickCount();
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74 void vuIP_Task( void *pvParameters )
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77 uip_ipaddr_t xIPAddr;
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78 struct timer periodic_timer, arp_timer;
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79 extern void ( vEMAC_ISR )( void );
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81 /* Just to get rid of the compiler warning. */
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82 ( void ) pvParameters;
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84 /* Enable/Reset the Ethernet Controller */
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86 /* Create the semaphore used by the ISR to wake this task. */
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87 vSemaphoreCreateBinary( xFECSemaphore );
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89 /* Initialise the uIP stack. */
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90 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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91 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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93 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
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94 uip_sethostaddr( xIPAddr );
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95 uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
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96 uip_setnetmask( xIPAddr );
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103 /* Is there received data ready to be processed? */
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104 uip_len = ( unsigned short ) ulFECRx();
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106 if( ( uip_len > 0 ) && ( uip_buf != NULL ) )
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108 /* Standard uIP loop taken from the uIP manual. */
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110 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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115 /* If the above function invocation resulted in data that
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116 should be sent out on the network, the global variable
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117 uip_len is set to a value > 0. */
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124 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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128 /* If the above function invocation resulted in data that
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129 should be sent out on the network, the global variable
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130 uip_len is set to a value > 0. */
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139 if( ( timer_expired( &periodic_timer ) ) && ( uip_buf != NULL ) )
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141 timer_reset( &periodic_timer );
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142 for( i = 0; i < UIP_CONNS; i++ )
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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 /* Call the ARP timer function every 10 seconds. */
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157 if( timer_expired( &arp_timer ) )
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159 timer_reset( &arp_timer );
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165 /* We did not receive a packet, and there was no periodic
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166 processing to perform. Block for a fixed period. If a packet
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167 is received during this period we will be woken by the ISR
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168 giving us the Semaphore. */
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169 xSemaphoreTake( xFECSemaphore, configTICK_RATE_HZ / 2 );
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174 /*-----------------------------------------------------------*/
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176 void vApplicationProcessFormInput( char *pcInputString, portBASE_TYPE xInputLength )
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180 /* Just to get rid of the compiler warning - other ports/demos use the parameter. */
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181 ( void ) xInputLength;
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183 /* Process the form input sent by the IO page of the served HTML. */
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185 c = strstr( pcInputString, "?" );
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189 /* Turn LED's on or off in accordance with the check box status. */
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190 if( strstr( c, "LED3=1" ) != NULL )
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192 /* Turn LED 3 on. */
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193 vParTestSetLED( 3, 1 );
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197 /* Turn LED 3 off. */
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198 vParTestSetLED( 3, 0 );
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