2 FreeRTOS V7.4.1 - 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 it can 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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74 /* Standard includes. */
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77 /* Scheduler includes. */
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78 #include "FreeRTOS.h"
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84 #include "uip_arp.h"
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87 #include "clock-arch.h"
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89 /* Demo includes. */
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91 #include "partest.h"
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93 /*-----------------------------------------------------------*/
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95 /* MAC address configuration. */
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96 #define uipMAC_ADDR0 0x00
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97 #define uipMAC_ADDR1 0x12
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98 #define uipMAC_ADDR2 0x13
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99 #define uipMAC_ADDR3 0x10
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100 #define uipMAC_ADDR4 0x15
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101 #define uipMAC_ADDR5 0x11
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103 /* IP address configuration. */
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104 #define uipIP_ADDR0 192
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105 #define uipIP_ADDR1 168
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106 #define uipIP_ADDR2 0
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107 #define uipIP_ADDR3 200
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109 /* How long to wait before attempting to connect the MAC again. */
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110 #define uipINIT_WAIT 200
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112 /* Shortcut to the header within the Rx buffer. */
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113 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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115 /* Standard constant. */
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116 #define uipTOTAL_FRAME_HEADER_SIZE 54
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118 /*-----------------------------------------------------------*/
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121 * Send the uIP buffer to the MAC.
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123 static void prvENET_Send(void);
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126 * Setup the MAC address in the MAC itself, and in the uIP stack.
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128 static void prvSetMACAddress( void );
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131 * Port functions required by the uIP stack.
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133 void clock_init( void );
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134 clock_time_t clock_time( void );
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136 /*-----------------------------------------------------------*/
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138 /* The semaphore used by the ISR to wake the uIP task. */
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139 extern xSemaphoreHandle xEMACSemaphore;
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141 /*-----------------------------------------------------------*/
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143 void clock_init(void)
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145 /* This is done when the scheduler starts. */
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147 /*-----------------------------------------------------------*/
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149 clock_time_t clock_time( void )
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151 return xTaskGetTickCount();
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153 /*-----------------------------------------------------------*/
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155 void vuIP_Task( void *pvParameters )
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158 uip_ipaddr_t xIPAddr;
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159 struct timer periodic_timer, arp_timer;
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160 extern void ( vEMAC_ISR_Wrapper )( void );
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162 /* Create the semaphore used by the ISR to wake this task. */
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163 vSemaphoreCreateBinary( xEMACSemaphore );
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165 /* Initialise the uIP stack. */
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166 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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167 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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169 uip_ipaddr( xIPAddr, uipIP_ADDR0, uipIP_ADDR1, uipIP_ADDR2, uipIP_ADDR3 );
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170 uip_sethostaddr( xIPAddr );
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173 /* Initialise the MAC. */
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174 while( Init_EMAC() != pdPASS )
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176 vTaskDelay( uipINIT_WAIT );
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179 portENTER_CRITICAL();
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181 IntEnable = INT_RX_DONE;
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182 VICIntEnable |= 0x00200000;
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183 VICVectAddr21 = ( portLONG ) vEMAC_ISR_Wrapper;
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184 prvSetMACAddress();
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186 portEXIT_CRITICAL();
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191 /* Is there received data ready to be processed? */
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192 uip_len = uiGetEMACRxData( uip_buf );
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196 /* Standard uIP loop taken from the uIP manual. */
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197 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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202 /* If the above function invocation resulted in data that
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203 should be sent out on the network, the global variable
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204 uip_len is set to a value > 0. */
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211 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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215 /* If the above function invocation resulted in data that
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216 should be sent out on the network, the global variable
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217 uip_len is set to a value > 0. */
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226 if( timer_expired( &periodic_timer ) )
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228 timer_reset( &periodic_timer );
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229 for( i = 0; i < UIP_CONNS; i++ )
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233 /* If the above function invocation resulted in data that
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234 should be sent out on the network, the global variable
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235 uip_len is set to a value > 0. */
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243 /* Call the ARP timer function every 10 seconds. */
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244 if( timer_expired( &arp_timer ) )
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246 timer_reset( &arp_timer );
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252 /* We did not receive a packet, and there was no periodic
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253 processing to perform. Block for a fixed period. If a packet
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254 is received during this period we will be woken by the ISR
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255 giving us the Semaphore. */
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256 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
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261 /*-----------------------------------------------------------*/
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263 static void prvENET_Send(void)
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267 /* Copy the header into the Tx buffer. */
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268 CopyToFrame_EMAC( uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
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269 if( uip_len > uipTOTAL_FRAME_HEADER_SIZE )
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271 CopyToFrame_EMAC( uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
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274 DoSend_EMAC( uip_len );
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278 /* Copy the header into the Tx buffer. */
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279 CopyToFrame_EMAC( uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
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280 if( uip_len > uipTOTAL_FRAME_HEADER_SIZE )
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282 CopyToFrame_EMAC( uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
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285 DoSend_EMAC( uip_len );
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287 /*-----------------------------------------------------------*/
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289 static void prvSetMACAddress( void )
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291 struct uip_eth_addr xAddr;
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293 /* Configure the MAC address in the uIP stack. */
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294 xAddr.addr[ 0 ] = uipMAC_ADDR0;
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295 xAddr.addr[ 1 ] = uipMAC_ADDR1;
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296 xAddr.addr[ 2 ] = uipMAC_ADDR2;
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297 xAddr.addr[ 3 ] = uipMAC_ADDR3;
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298 xAddr.addr[ 4 ] = uipMAC_ADDR4;
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299 xAddr.addr[ 5 ] = uipMAC_ADDR5;
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300 uip_setethaddr( xAddr );
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302 /*-----------------------------------------------------------*/
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304 void vApplicationProcessFormInput( portCHAR *pcInputString, portBASE_TYPE xInputLength )
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307 static portCHAR cMessageForDisplay[ 32 ];
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308 extern xQueueHandle xLCDQueue;
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309 xLCDMessage xLCDMessage;
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311 /* Process the form input sent by the IO page of the served HTML. */
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313 c = strstr( pcInputString, "?" );
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316 /* Turn LED's on or off in accordance with the check box status. */
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317 if( strstr( c, "LED0=1" ) != NULL )
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319 vParTestSetLED( 5, 0 );
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323 vParTestSetLED( 5, 1 );
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326 if( strstr( c, "LED1=1" ) != NULL )
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328 vParTestSetLED( 6, 0 );
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332 vParTestSetLED( 6, 1 );
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335 if( strstr( c, "LED2=1" ) != NULL )
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337 vParTestSetLED( 7, 0 );
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341 vParTestSetLED( 7, 1 );
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344 /* Find the start of the text to be displayed on the LCD. */
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345 pcText = strstr( c, "LCD=" );
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346 pcText += strlen( "LCD=" );
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348 /* Terminate the file name for further processing within uIP. */
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351 /* Terminate the LCD string. */
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352 c = strstr( pcText, " " );
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358 /* Add required spaces. */
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359 while( ( c = strstr( pcText, "+" ) ) != NULL )
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364 /* Write the message to the LCD. */
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365 strcpy( cMessageForDisplay, pcText );
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366 xLCDMessage.xColumn = 0;
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367 xLCDMessage.pcMessage = cMessageForDisplay;
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368 xQueueSend( xLCDQueue, &xLCDMessage, portMAX_DELAY );
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