2 FreeRTOS V8.2.0rc1 - Copyright (C) 2014 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 >>! NOTE: The modification to the GPL is included to allow you to !<<
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14 >>! distribute a combined work that includes FreeRTOS without being !<<
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15 >>! obliged to provide the source code for proprietary components !<<
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16 >>! outside of the FreeRTOS kernel. !<<
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18 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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19 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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20 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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21 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * Having a problem? Start by reading the FAQ "My application does *
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28 * not run, what could be wrong?". Have you defined configASSERT()? *
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30 * http://www.FreeRTOS.org/FAQHelp.html *
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32 ***************************************************************************
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34 ***************************************************************************
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36 * FreeRTOS provides completely free yet professionally developed, *
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37 * robust, strictly quality controlled, supported, and cross *
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38 * platform software that is more than just the market leader, it *
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39 * is the industry's de facto standard. *
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41 * Help yourself get started quickly while simultaneously helping *
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42 * to support the FreeRTOS project by purchasing a FreeRTOS *
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43 * tutorial book, reference manual, or both: *
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44 * http://www.FreeRTOS.org/Documentation *
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46 ***************************************************************************
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48 ***************************************************************************
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50 * Investing in training allows your team to be as productive as *
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51 * possible as early as possible, lowering your overall development *
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52 * cost, and enabling you to bring a more robust product to market *
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53 * earlier than would otherwise be possible. Richard Barry is both *
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54 * the architect and key author of FreeRTOS, and so also the world's *
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55 * leading authority on what is the world's most popular real time *
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56 * kernel for deeply embedded MCU designs. Obtaining your training *
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57 * from Richard ensures your team will gain directly from his in-depth *
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58 * product knowledge and years of usage experience. Contact Real Time *
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59 * Engineers Ltd to enquire about the FreeRTOS Masterclass, presented *
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60 * by Richard Barry: http://www.FreeRTOS.org/contact
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62 ***************************************************************************
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64 ***************************************************************************
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66 * You are receiving this top quality software for free. Please play *
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67 * fair and reciprocate by reporting any suspected issues and *
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68 * participating in the community forum: *
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69 * http://www.FreeRTOS.org/support *
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73 ***************************************************************************
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75 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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76 license and Real Time Engineers Ltd. contact details.
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78 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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79 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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80 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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82 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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83 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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85 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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86 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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87 licenses offer ticketed support, indemnification and commercial middleware.
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89 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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90 engineered and independently SIL3 certified version for use in safety and
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91 mission critical applications that require provable dependability.
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95 /* Standard includes. */
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98 /* Scheduler includes. */
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99 #include "FreeRTOS.h"
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101 #include "semphr.h"
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103 #include "lcd_message.h"
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105 /* uip includes. */
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106 #include "hw_types.h"
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109 #include "uip_arp.h"
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112 #include "clock-arch.h"
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113 #include "hw_ethernet.h"
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114 #include "ethernet.h"
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115 #include "hw_memmap.h"
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116 #include "lmi_flash.h"
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117 #include "sysctl.h"
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119 /* Demo includes. */
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121 #include "partest.h"
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123 /*-----------------------------------------------------------*/
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125 /* IP address configuration. */
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126 #define uipIP_ADDR0 172
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127 #define uipIP_ADDR1 25
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128 #define uipIP_ADDR2 218
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129 #define uipIP_ADDR3 19
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131 /* How long to wait before attempting to connect the MAC again. */
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132 #define uipINIT_WAIT 100
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134 /* Shortcut to the header within the Rx buffer. */
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135 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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137 /* Standard constant. */
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138 #define uipTOTAL_FRAME_HEADER_SIZE 54
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140 /*-----------------------------------------------------------*/
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143 * Send the uIP buffer to the MAC.
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145 static void prvENET_Send(void);
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148 * Setup the MAC address in the MAC itself, and in the uIP stack.
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150 static void prvSetMACAddress( void );
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153 * Port functions required by the uIP stack.
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155 void clock_init( void );
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156 clock_time_t clock_time( void );
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158 /*-----------------------------------------------------------*/
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160 /* The semaphore used by the ISR to wake the uIP task. */
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161 extern SemaphoreHandle_t xEMACSemaphore;
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163 /*-----------------------------------------------------------*/
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165 void clock_init(void)
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167 /* This is done when the scheduler starts. */
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169 /*-----------------------------------------------------------*/
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171 clock_time_t clock_time( void )
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173 return xTaskGetTickCount();
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177 void vuIP_Task( void *pvParameters )
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180 uip_ipaddr_t xIPAddr;
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181 struct timer periodic_timer, arp_timer;
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182 extern void ( vEMAC_ISR )( void );
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184 /* Enable/Reset the Ethernet Controller */
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185 SysCtlPeripheralEnable( SYSCTL_PERIPH_ETH );
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186 SysCtlPeripheralReset( SYSCTL_PERIPH_ETH );
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188 /* Create the semaphore used by the ISR to wake this task. */
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189 vSemaphoreCreateBinary( xEMACSemaphore );
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191 /* Initialise the uIP stack. */
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192 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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193 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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195 uip_ipaddr( xIPAddr, uipIP_ADDR0, uipIP_ADDR1, uipIP_ADDR2, uipIP_ADDR3 );
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196 uip_sethostaddr( xIPAddr );
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199 while( vInitEMAC() != pdPASS )
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201 vTaskDelay( uipINIT_WAIT );
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203 prvSetMACAddress();
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208 /* Is there received data ready to be processed? */
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209 uip_len = uiGetEMACRxData( uip_buf );
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213 /* Standard uIP loop taken from the uIP manual. */
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215 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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220 /* If the above function invocation resulted in data that
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221 should be sent out on the network, the global variable
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222 uip_len is set to a value > 0. */
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229 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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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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244 if( timer_expired( &periodic_timer ) )
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246 timer_reset( &periodic_timer );
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247 for( i = 0; i < UIP_CONNS; i++ )
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251 /* If the above function invocation resulted in data that
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252 should be sent out on the network, the global variable
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253 uip_len is set to a value > 0. */
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261 /* Call the ARP timer function every 10 seconds. */
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262 if( timer_expired( &arp_timer ) )
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264 timer_reset( &arp_timer );
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270 /* We did not receive a packet, and there was no periodic
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271 processing to perform. Block for a fixed period. If a packet
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272 is received during this period we will be woken by the ISR
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273 giving us the Semaphore. */
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274 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
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279 /*-----------------------------------------------------------*/
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281 static void prvENET_Send(void)
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284 vIncrementTxLength( uip_len );
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285 vSendBufferToMAC();
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287 /*-----------------------------------------------------------*/
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289 static void prvSetMACAddress( void )
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291 unsigned long ulUser0, ulUser1;
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292 unsigned char pucMACArray[8];
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293 struct uip_eth_addr xAddr;
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295 /* Get the device MAC address from flash */
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296 FlashUserGet(&ulUser0, &ulUser1);
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298 /* Convert the MAC address from flash into sequence of bytes. */
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299 pucMACArray[0] = ((ulUser0 >> 0) & 0xff);
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300 pucMACArray[1] = ((ulUser0 >> 8) & 0xff);
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301 pucMACArray[2] = ((ulUser0 >> 16) & 0xff);
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302 pucMACArray[3] = ((ulUser1 >> 0) & 0xff);
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303 pucMACArray[4] = ((ulUser1 >> 8) & 0xff);
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304 pucMACArray[5] = ((ulUser1 >> 16) & 0xff);
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306 /* Program the MAC address. */
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307 EthernetMACAddrSet(ETH_BASE, pucMACArray);
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309 xAddr.addr[ 0 ] = pucMACArray[0];
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310 xAddr.addr[ 1 ] = pucMACArray[1];
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311 xAddr.addr[ 2 ] = pucMACArray[2];
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312 xAddr.addr[ 3 ] = pucMACArray[3];
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313 xAddr.addr[ 4 ] = pucMACArray[4];
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314 xAddr.addr[ 5 ] = pucMACArray[5];
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315 uip_setethaddr( xAddr );
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317 /*-----------------------------------------------------------*/
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319 void vApplicationProcessFormInput( char *pcInputString, portBASE_TYPE xInputLength )
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322 static char cMessageForDisplay[ 32 ];
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323 extern QueueHandle_t xOLEDQueue;
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324 xOLEDMessage xOLEDMessage;
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326 /* Process the form input sent by the IO page of the served HTML. */
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328 c = strstr( pcInputString, "?" );
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332 /* Turn LED's on or off in accordance with the check box status. */
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333 if( strstr( c, "LED0=1" ) != NULL )
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335 vParTestSetLED( 0, 1 );
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339 vParTestSetLED( 0, 0 );
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342 /* Find the start of the text to be displayed on the LCD. */
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343 pcText = strstr( c, "LCD=" );
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344 pcText += strlen( "LCD=" );
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346 /* Terminate the file name for further processing within uIP. */
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349 /* Terminate the LCD string. */
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350 c = strstr( pcText, " " );
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356 /* Add required spaces. */
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357 while( ( c = strstr( pcText, "+" ) ) != NULL )
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362 /* Write the message to the LCD. */
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363 strcpy( cMessageForDisplay, pcText );
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364 xOLEDMessage.pcMessage = cMessageForDisplay;
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365 xQueueSend( xOLEDQueue, &xOLEDMessage, portMAX_DELAY );
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