/* | |
FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
This file is part of the FreeRTOS distribution. | |
FreeRTOS is free software; you can redistribute it and/or modify it under | |
the terms of the GNU General Public License (version 2) as published by the | |
Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. | |
*************************************************************************** | |
>>! NOTE: The modification to the GPL is included to allow you to !<< | |
>>! distribute a combined work that includes FreeRTOS without being !<< | |
>>! obliged to provide the source code for proprietary components !<< | |
>>! outside of the FreeRTOS kernel. !<< | |
*************************************************************************** | |
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY | |
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
FOR A PARTICULAR PURPOSE. Full license text is available on the following | |
link: http://www.freertos.org/a00114.html | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that is more than just the market leader, it * | |
* is the industry's de facto standard. * | |
* * | |
* Help yourself get started quickly while simultaneously helping * | |
* to support the FreeRTOS project by purchasing a FreeRTOS * | |
* tutorial book, reference manual, or both: * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading | |
the FAQ page "My application does not run, what could be wrong?". Have you | |
defined configASSERT()? | |
http://www.FreeRTOS.org/support - In return for receiving this top quality | |
embedded software for free we request you assist our global community by | |
participating in the support forum. | |
http://www.FreeRTOS.org/training - Investing in training allows your team to | |
be as productive as possible as early as possible. Now you can receive | |
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers | |
Ltd, and the world's leading authority on the world's leading RTOS. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. | |
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. | |
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High | |
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and commercial middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
1 tab == 4 spaces! | |
*/ | |
/* Standard includes. */ | |
#include <string.h> | |
/* Scheduler includes. */ | |
#include "FreeRTOS.h" | |
#include "task.h" | |
#include "semphr.h" | |
/* uip includes. */ | |
#include "uip.h" | |
#include "uip_arp.h" | |
#include "httpd.h" | |
#include "timer.h" | |
#include "clock-arch.h" | |
/* Demo includes. */ | |
#include "EthDev_LPC17xx.h" | |
#include "EthDev.h" | |
#include "ParTest.h" | |
/*-----------------------------------------------------------*/ | |
/* How long to wait before attempting to connect the MAC again. */ | |
#define uipINIT_WAIT ( 100 / portTICK_PERIOD_MS ) | |
/* Shortcut to the header within the Rx buffer. */ | |
#define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ]) | |
/* Standard constant. */ | |
#define uipTOTAL_FRAME_HEADER_SIZE 54 | |
/*-----------------------------------------------------------*/ | |
/* | |
* Setup the MAC address in the MAC itself, and in the uIP stack. | |
*/ | |
static void prvSetMACAddress( void ); | |
/* | |
* Port functions required by the uIP stack. | |
*/ | |
void clock_init( void ); | |
clock_time_t clock_time( void ); | |
/*-----------------------------------------------------------*/ | |
/* The semaphore used by the ISR to wake the uIP task. */ | |
SemaphoreHandle_t xEMACSemaphore = NULL; | |
/*-----------------------------------------------------------*/ | |
void clock_init(void) | |
{ | |
/* This is done when the scheduler starts. */ | |
} | |
/*-----------------------------------------------------------*/ | |
clock_time_t clock_time( void ) | |
{ | |
return xTaskGetTickCount(); | |
} | |
/*-----------------------------------------------------------*/ | |
void vuIP_Task( void *pvParameters ) | |
{ | |
portBASE_TYPE i; | |
uip_ipaddr_t xIPAddr; | |
struct timer periodic_timer, arp_timer; | |
extern void ( vEMAC_ISR_Wrapper )( void ); | |
( void ) pvParameters; | |
/* Initialise the uIP stack. */ | |
timer_set( &periodic_timer, configTICK_RATE_HZ / 2 ); | |
timer_set( &arp_timer, configTICK_RATE_HZ * 10 ); | |
uip_init(); | |
uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 ); | |
uip_sethostaddr( xIPAddr ); | |
uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 ); | |
uip_setnetmask( xIPAddr ); | |
httpd_init(); | |
/* Create the semaphore used to wake the uIP task. */ | |
vSemaphoreCreateBinary( xEMACSemaphore ); | |
/* Initialise the MAC. */ | |
while( lEMACInit() != pdPASS ) | |
{ | |
vTaskDelay( uipINIT_WAIT ); | |
} | |
portENTER_CRITICAL(); | |
{ | |
LPC_EMAC->IntEnable = ( INT_RX_DONE | INT_TX_DONE ); | |
/* Set the interrupt priority to the max permissible to cause some | |
interrupt nesting. */ | |
NVIC_SetPriority( ENET_IRQn, configEMAC_INTERRUPT_PRIORITY ); | |
/* Enable the interrupt. */ | |
NVIC_EnableIRQ( ENET_IRQn ); | |
prvSetMACAddress(); | |
} | |
portEXIT_CRITICAL(); | |
for( ;; ) | |
{ | |
/* Is there received data ready to be processed? */ | |
uip_len = ulGetEMACRxData(); | |
if( ( uip_len > 0 ) && ( uip_buf != NULL ) ) | |
{ | |
/* Standard uIP loop taken from the uIP manual. */ | |
if( xHeader->type == htons( UIP_ETHTYPE_IP ) ) | |
{ | |
uip_arp_ipin(); | |
uip_input(); | |
/* If the above function invocation resulted in data that | |
should be sent out on the network, the global variable | |
uip_len is set to a value > 0. */ | |
if( uip_len > 0 ) | |
{ | |
uip_arp_out(); | |
vSendEMACTxData( uip_len ); | |
} | |
} | |
else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) ) | |
{ | |
uip_arp_arpin(); | |
/* If the above function invocation resulted in data that | |
should be sent out on the network, the global variable | |
uip_len is set to a value > 0. */ | |
if( uip_len > 0 ) | |
{ | |
vSendEMACTxData( uip_len ); | |
} | |
} | |
} | |
else | |
{ | |
if( timer_expired( &periodic_timer ) && ( uip_buf != NULL ) ) | |
{ | |
timer_reset( &periodic_timer ); | |
for( i = 0; i < UIP_CONNS; i++ ) | |
{ | |
uip_periodic( i ); | |
/* If the above function invocation resulted in data that | |
should be sent out on the network, the global variable | |
uip_len is set to a value > 0. */ | |
if( uip_len > 0 ) | |
{ | |
uip_arp_out(); | |
vSendEMACTxData( uip_len ); | |
} | |
} | |
/* Call the ARP timer function every 10 seconds. */ | |
if( timer_expired( &arp_timer ) ) | |
{ | |
timer_reset( &arp_timer ); | |
uip_arp_timer(); | |
} | |
} | |
else | |
{ | |
/* We did not receive a packet, and there was no periodic | |
processing to perform. Block for a fixed period. If a packet | |
is received during this period we will be woken by the ISR | |
giving us the Semaphore. */ | |
xSemaphoreTake( xEMACSemaphore, configTICK_RATE_HZ / 2 ); | |
} | |
} | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
static void prvSetMACAddress( void ) | |
{ | |
struct uip_eth_addr xAddr; | |
/* Configure the MAC address in the uIP stack. */ | |
xAddr.addr[ 0 ] = configMAC_ADDR0; | |
xAddr.addr[ 1 ] = configMAC_ADDR1; | |
xAddr.addr[ 2 ] = configMAC_ADDR2; | |
xAddr.addr[ 3 ] = configMAC_ADDR3; | |
xAddr.addr[ 4 ] = configMAC_ADDR4; | |
xAddr.addr[ 5 ] = configMAC_ADDR5; | |
uip_setethaddr( xAddr ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vApplicationProcessFormInput( char *pcInputString ) | |
{ | |
char *c; | |
const unsigned long ulLEDNo = 3; | |
/* Process the form input sent by the IO page of the served HTML. */ | |
c = strstr( pcInputString, "?" ); | |
if( c ) | |
{ | |
/* Turn LED's on or off in accordance with the check box status. */ | |
if( strstr( c, "LED0=1" ) != NULL ) | |
{ | |
/* Set LED7. */ | |
vParTestSetLED( ulLEDNo, pdFALSE ); | |
} | |
else | |
{ | |
/* Clear LED7. */ | |
vParTestSetLED( ulLEDNo, pdTRUE ); | |
} | |
} | |
} | |