2 FreeRTOS V9.0.1 - Copyright (C) 2017 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
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13 ***************************************************************************
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14 >>! NOTE: The modification to the GPL is included to allow you to !<<
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15 >>! distribute a combined work that includes FreeRTOS without being !<<
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16 >>! obliged to provide the source code for proprietary components !<<
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17 >>! outside of the FreeRTOS kernel. !<<
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18 ***************************************************************************
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20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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23 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * FreeRTOS provides completely free yet professionally developed, *
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28 * robust, strictly quality controlled, supported, and cross *
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29 * platform software that is more than just the market leader, it *
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30 * is the industry's de facto standard. *
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32 * Help yourself get started quickly while simultaneously helping *
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33 * to support the FreeRTOS project by purchasing a FreeRTOS *
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34 * tutorial book, reference manual, or both: *
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35 * http://www.FreeRTOS.org/Documentation *
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37 ***************************************************************************
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39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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40 the FAQ page "My application does not run, what could be wrong?". Have you
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41 defined configASSERT()?
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43 http://www.FreeRTOS.org/support - In return for receiving this top quality
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44 embedded software for free we request you assist our global community by
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45 participating in the support forum.
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47 http://www.FreeRTOS.org/training - Investing in training allows your team to
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48 be as productive as possible as early as possible. Now you can receive
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49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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50 Ltd, and the world's leading authority on the world's leading RTOS.
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52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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61 licenses offer ticketed support, indemnification and commercial middleware.
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63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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64 engineered and independently SIL3 certified version for use in safety and
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65 mission critical applications that require provable dependability.
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69 /* Standard includes. */
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72 /* Scheduler includes. */
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73 #include "FreeRTOS.h"
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79 #include "uip_arp.h"
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82 #include "clock-arch.h"
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84 /* Demo includes. */
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86 #include "partest.h"
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88 /*-----------------------------------------------------------*/
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90 /* MAC address configuration. */
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91 #define uipMAC_ADDR0 0x00
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92 #define uipMAC_ADDR1 0x12
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93 #define uipMAC_ADDR2 0x13
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94 #define uipMAC_ADDR3 0x10
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95 #define uipMAC_ADDR4 0x15
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96 #define uipMAC_ADDR5 0x11
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98 /* IP address configuration. */
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99 #define uipIP_ADDR0 172
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100 #define uipIP_ADDR1 25
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101 #define uipIP_ADDR2 218
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102 #define uipIP_ADDR3 16
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104 /* How long to wait before attempting to connect the MAC again. */
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105 #define uipINIT_WAIT 100
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107 /* Shortcut to the header within the Rx buffer. */
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108 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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110 /* Standard constant. */
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111 #define uipTOTAL_FRAME_HEADER_SIZE 54
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113 /*-----------------------------------------------------------*/
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116 * Send the uIP buffer to the MAC.
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118 static void prvENET_Send(void);
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121 * Setup the MAC address in the MAC itself, and in the uIP stack.
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123 static void prvSetMACAddress( void );
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126 * Port functions required by the uIP stack.
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128 void clock_init( void );
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129 clock_time_t clock_time( void );
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131 /*-----------------------------------------------------------*/
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133 /* The semaphore used by the ISR to wake the uIP task. */
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134 extern SemaphoreHandle_t xEMACSemaphore;
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136 /*-----------------------------------------------------------*/
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138 void clock_init(void)
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140 /* This is done when the scheduler starts. */
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142 /*-----------------------------------------------------------*/
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144 clock_time_t clock_time( void )
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146 return xTaskGetTickCount();
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148 /*-----------------------------------------------------------*/
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150 void vuIP_Task( void *pvParameters )
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153 uip_ipaddr_t xIPAddr;
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154 struct timer periodic_timer, arp_timer;
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155 extern void ( vEMAC_ISR_Wrapper )( void );
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157 /* Create the semaphore used by the ISR to wake this task. */
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158 vSemaphoreCreateBinary( xEMACSemaphore );
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160 /* Initialise the uIP stack. */
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161 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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162 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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164 uip_ipaddr( xIPAddr, uipIP_ADDR0, uipIP_ADDR1, uipIP_ADDR2, uipIP_ADDR3 );
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165 uip_sethostaddr( xIPAddr );
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168 /* Initialise the MAC. */
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169 while( Init_EMAC() != pdPASS )
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171 vTaskDelay( uipINIT_WAIT );
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174 portENTER_CRITICAL();
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176 MAC_INTENABLE = INT_RX_DONE;
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177 VICIntEnable |= 0x00200000;
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178 VICVectAddr21 = ( long ) vEMAC_ISR_Wrapper;
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179 prvSetMACAddress();
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181 portEXIT_CRITICAL();
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186 /* Is there received data ready to be processed? */
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187 uip_len = uiGetEMACRxData( uip_buf );
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191 /* Standard uIP loop taken from the uIP manual. */
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192 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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197 /* If the above function invocation resulted in data that
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198 should be sent out on the network, the global variable
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199 uip_len is set to a value > 0. */
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206 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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210 /* If the above function invocation resulted in data that
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211 should be sent out on the network, the global variable
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212 uip_len is set to a value > 0. */
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221 if( timer_expired( &periodic_timer ) )
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223 timer_reset( &periodic_timer );
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224 for( i = 0; i < UIP_CONNS; i++ )
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228 /* If the above function invocation resulted in data that
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229 should be sent out on the network, the global variable
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230 uip_len is set to a value > 0. */
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238 /* Call the ARP timer function every 10 seconds. */
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239 if( timer_expired( &arp_timer ) )
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241 timer_reset( &arp_timer );
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247 /* We did not receive a packet, and there was no periodic
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248 processing to perform. Block for a fixed period. If a packet
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249 is received during this period we will be woken by the ISR
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250 giving us the Semaphore. */
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251 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
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256 /*-----------------------------------------------------------*/
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258 static void prvENET_Send(void)
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262 /* Copy the header into the Tx buffer. */
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263 CopyToFrame_EMAC( uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
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264 if( uip_len > uipTOTAL_FRAME_HEADER_SIZE )
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266 CopyToFrame_EMAC( uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
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269 DoSend_EMAC( uip_len );
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271 /*-----------------------------------------------------------*/
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273 static void prvSetMACAddress( void )
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275 struct uip_eth_addr xAddr;
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277 /* Configure the MAC address in the uIP stack. */
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278 xAddr.addr[ 0 ] = uipMAC_ADDR0;
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279 xAddr.addr[ 1 ] = uipMAC_ADDR1;
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280 xAddr.addr[ 2 ] = uipMAC_ADDR2;
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281 xAddr.addr[ 3 ] = uipMAC_ADDR3;
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282 xAddr.addr[ 4 ] = uipMAC_ADDR4;
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283 xAddr.addr[ 5 ] = uipMAC_ADDR5;
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284 uip_setethaddr( xAddr );
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286 /*-----------------------------------------------------------*/
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288 void vApplicationProcessFormInput( char *pcInputString, portBASE_TYPE xInputLength )
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291 static char cMessageForDisplay[ 32 ];
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292 extern QueueHandle_t xLCDQueue;
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293 xLCDMessage xLCDMessage;
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295 /* Process the form input sent by the IO page of the served HTML. */
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297 c = strstr( pcInputString, "?" );
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300 /* Turn LED's on or off in accordance with the check box status. */
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301 if( strstr( c, "LED0=1" ) != NULL )
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303 vParTestSetLED( 5, 0 );
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307 vParTestSetLED( 5, 1 );
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310 if( strstr( c, "LED1=1" ) != NULL )
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312 vParTestSetLED( 6, 0 );
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316 vParTestSetLED( 6, 1 );
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319 if( strstr( c, "LED2=1" ) != NULL )
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321 vParTestSetLED( 7, 0 );
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325 vParTestSetLED( 7, 1 );
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328 /* Find the start of the text to be displayed on the LCD. */
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329 pcText = strstr( c, "LCD=" );
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330 pcText += strlen( "LCD=" );
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332 /* Terminate the file name for further processing within uIP. */
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335 /* Terminate the LCD string. */
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336 c = strstr( pcText, " " );
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342 /* Add required spaces. */
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343 while( ( c = strstr( pcText, "+" ) ) != NULL )
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348 /* Write the message to the LCD. */
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349 strcpy( cMessageForDisplay, pcText );
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350 xLCDMessage.xColumn = 0;
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351 xLCDMessage.pcMessage = cMessageForDisplay;
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352 xQueueSend( xLCDQueue, &xLCDMessage, portMAX_DELAY );
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