2 FreeRTOS V8.0.0:rc1 - Copyright (C) 2014 Real Time Engineers Ltd.
\r
5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
\r
7 ***************************************************************************
\r
9 * FreeRTOS provides completely free yet professionally developed, *
\r
10 * robust, strictly quality controlled, supported, and cross *
\r
11 * platform software that has become a de facto standard. *
\r
13 * Help yourself get started quickly and support the FreeRTOS *
\r
14 * project by purchasing a FreeRTOS tutorial book, reference *
\r
15 * manual, or both from: http://www.FreeRTOS.org/Documentation *
\r
19 ***************************************************************************
\r
21 This file is part of the FreeRTOS distribution.
\r
23 FreeRTOS is free software; you can redistribute it and/or modify it under
\r
24 the terms of the GNU General Public License (version 2) as published by the
\r
25 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
\r
27 >>! NOTE: The modification to the GPL is included to allow you to distribute
\r
28 >>! a combined work that includes FreeRTOS without being obliged to provide
\r
29 >>! the source code for proprietary components outside of the FreeRTOS
\r
32 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
\r
33 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
\r
34 FOR A PARTICULAR PURPOSE. Full license text is available from the following
\r
35 link: http://www.freertos.org/a00114.html
\r
39 ***************************************************************************
\r
41 * Having a problem? Start by reading the FAQ "My application does *
\r
42 * not run, what could be wrong?" *
\r
44 * http://www.FreeRTOS.org/FAQHelp.html *
\r
46 ***************************************************************************
\r
48 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
\r
49 license and Real Time Engineers Ltd. contact details.
\r
51 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
\r
52 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
\r
53 compatible FAT file system, and our tiny thread aware UDP/IP stack.
\r
55 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
\r
56 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
\r
57 licenses offer ticketed support, indemnification and middleware.
\r
59 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
\r
60 engineered and independently SIL3 certified version for use in safety and
\r
61 mission critical applications that require provable dependability.
\r
66 /* Standard includes. */
\r
69 /* Scheduler includes. */
\r
70 #include "FreeRTOS.h"
\r
76 #include "uip_arp.h"
\r
79 #include "clock-arch.h"
\r
81 /* Demo includes. */
\r
82 #include "EthDev_LPC17xx.h"
\r
84 #include "ParTest.h"
\r
86 /*-----------------------------------------------------------*/
\r
88 /* How long to wait before attempting to connect the MAC again. */
\r
89 #define uipINIT_WAIT ( 100 / portTICK_PERIOD_MS )
\r
91 /* Shortcut to the header within the Rx buffer. */
\r
92 #define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
\r
94 /* Standard constant. */
\r
95 #define uipTOTAL_FRAME_HEADER_SIZE 54
\r
97 /*-----------------------------------------------------------*/
\r
100 * Setup the MAC address in the MAC itself, and in the uIP stack.
\r
102 static void prvSetMACAddress( void );
\r
105 * Port functions required by the uIP stack.
\r
107 void clock_init( void );
\r
108 clock_time_t clock_time( void );
\r
110 /*-----------------------------------------------------------*/
\r
112 /* The semaphore used by the ISR to wake the uIP task. */
\r
113 SemaphoreHandle_t xEMACSemaphore = NULL;
\r
115 /*-----------------------------------------------------------*/
\r
117 void clock_init(void)
\r
119 /* This is done when the scheduler starts. */
\r
121 /*-----------------------------------------------------------*/
\r
123 clock_time_t clock_time( void )
\r
125 return xTaskGetTickCount();
\r
127 /*-----------------------------------------------------------*/
\r
129 void vuIP_Task( void *pvParameters )
\r
132 uip_ipaddr_t xIPAddr;
\r
133 struct timer periodic_timer, arp_timer;
\r
134 extern void ( vEMAC_ISR_Wrapper )( void );
\r
136 ( void ) pvParameters;
\r
138 /* Initialise the uIP stack. */
\r
139 timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
\r
140 timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
\r
142 uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
\r
143 uip_sethostaddr( xIPAddr );
\r
144 uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
\r
145 uip_setnetmask( xIPAddr );
\r
148 /* Create the semaphore used to wake the uIP task. */
\r
149 vSemaphoreCreateBinary( xEMACSemaphore );
\r
151 /* Initialise the MAC. */
\r
152 while( lEMACInit() != pdPASS )
\r
154 vTaskDelay( uipINIT_WAIT );
\r
157 portENTER_CRITICAL();
\r
159 EMAC->IntEnable = ( INT_RX_DONE | INT_TX_DONE );
\r
161 /* Set the interrupt priority to the max permissible to cause some
\r
162 interrupt nesting. */
\r
163 NVIC_SetPriority( ENET_IRQn, configEMAC_INTERRUPT_PRIORITY );
\r
165 /* Enable the interrupt. */
\r
166 NVIC_EnableIRQ( ENET_IRQn );
\r
167 prvSetMACAddress();
\r
169 portEXIT_CRITICAL();
\r
174 /* Is there received data ready to be processed? */
\r
175 uip_len = ulGetEMACRxData();
\r
177 if( ( uip_len > 0 ) && ( uip_buf != NULL ) )
\r
179 /* Standard uIP loop taken from the uIP manual. */
\r
180 if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
\r
185 /* If the above function invocation resulted in data that
\r
186 should be sent out on the network, the global variable
\r
187 uip_len is set to a value > 0. */
\r
191 vSendEMACTxData( uip_len );
\r
194 else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
\r
198 /* If the above function invocation resulted in data that
\r
199 should be sent out on the network, the global variable
\r
200 uip_len is set to a value > 0. */
\r
203 vSendEMACTxData( uip_len );
\r
209 if( timer_expired( &periodic_timer ) && ( uip_buf != NULL ) )
\r
211 timer_reset( &periodic_timer );
\r
212 for( i = 0; i < UIP_CONNS; i++ )
\r
216 /* If the above function invocation resulted in data that
\r
217 should be sent out on the network, the global variable
\r
218 uip_len is set to a value > 0. */
\r
222 vSendEMACTxData( uip_len );
\r
226 /* Call the ARP timer function every 10 seconds. */
\r
227 if( timer_expired( &arp_timer ) )
\r
229 timer_reset( &arp_timer );
\r
235 /* We did not receive a packet, and there was no periodic
\r
236 processing to perform. Block for a fixed period. If a packet
\r
237 is received during this period we will be woken by the ISR
\r
238 giving us the Semaphore. */
\r
239 xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 );
\r
244 /*-----------------------------------------------------------*/
\r
246 static void prvSetMACAddress( void )
\r
248 struct uip_eth_addr xAddr;
\r
250 /* Configure the MAC address in the uIP stack. */
\r
251 xAddr.addr[ 0 ] = configMAC_ADDR0;
\r
252 xAddr.addr[ 1 ] = configMAC_ADDR1;
\r
253 xAddr.addr[ 2 ] = configMAC_ADDR2;
\r
254 xAddr.addr[ 3 ] = configMAC_ADDR3;
\r
255 xAddr.addr[ 4 ] = configMAC_ADDR4;
\r
256 xAddr.addr[ 5 ] = configMAC_ADDR5;
\r
257 uip_setethaddr( xAddr );
\r
259 /*-----------------------------------------------------------*/
\r
261 void vApplicationProcessFormInput( char *pcInputString )
\r
264 extern void vParTestSetLEDState( long lState );
\r
266 /* Process the form input sent by the IO page of the served HTML. */
\r
268 c = strstr( pcInputString, "?" );
\r
271 /* Turn the FIO1 LED's on or off in accordance with the check box status. */
\r
272 if( strstr( c, "LED0=1" ) != NULL )
\r
274 vParTestSetLEDState( pdTRUE );
\r
278 vParTestSetLEDState( pdFALSE );
\r