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Add FreeRTOS-Plus directory.

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Richard Barry 2012-08-11 21:34:11 +00:00
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commit f508a5f653
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FreeRTOS/Demo/ARM7_LPC2368_Rowley/webserver/uIP_Task.c Normal file
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/*
FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
***************************************************************************
* *
* FreeRTOS tutorial books are available in pdf and paperback. *
* Complete, revised, and edited pdf reference manuals are also *
* available. *
* *
* Purchasing FreeRTOS documentation will not only help you, by *
* ensuring you get running as quickly as possible and with an *
* in-depth knowledge of how to use FreeRTOS, it will also help *
* the FreeRTOS project to continue with its mission of providing *
* professional grade, cross platform, de facto standard solutions *
* for microcontrollers - completely free of charge! *
* *
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
* *
* Thank you for using FreeRTOS, and thank you for your support! *
* *
***************************************************************************
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. See the GNU General Public License for
more details. You should have received a copy of the GNU General Public
License and the FreeRTOS license exception along with FreeRTOS; if not it
can be viewed here: http://www.freertos.org/a00114.html and also obtained
by writing to Richard Barry, contact details for whom are available on the
FreeRTOS WEB site.
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong? *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
http://www.FreeRTOS.org - Documentation, training, latest information,
license and contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool.
Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
the code with commercial support, indemnification, and middleware, under
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
provide a safety engineered and independently SIL3 certified version under
the SafeRTOS brand: http://www.SafeRTOS.com.
*/
/* 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 "emac.h"
#include "partest.h"
/*-----------------------------------------------------------*/
/* MAC address configuration. */
#define uipMAC_ADDR0 0x00
#define uipMAC_ADDR1 0x12
#define uipMAC_ADDR2 0x13
#define uipMAC_ADDR3 0x10
#define uipMAC_ADDR4 0x15
#define uipMAC_ADDR5 0x11
/* IP address configuration. */
#define uipIP_ADDR0 192
#define uipIP_ADDR1 168
#define uipIP_ADDR2 0
#define uipIP_ADDR3 200
/* How long to wait before attempting to connect the MAC again. */
#define uipINIT_WAIT 200
/* 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
/*-----------------------------------------------------------*/
/*
* Send the uIP buffer to the MAC.
*/
static void prvENET_Send(void);
/*
* 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. */
extern xSemaphoreHandle xEMACSemaphore;
/*-----------------------------------------------------------*/
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 );
/* Create the semaphore used by the ISR to wake this task. */
vSemaphoreCreateBinary( xEMACSemaphore );
/* 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, uipIP_ADDR0, uipIP_ADDR1, uipIP_ADDR2, uipIP_ADDR3 );
uip_sethostaddr( xIPAddr );
httpd_init();
/* Initialise the MAC. */
while( Init_EMAC() != pdPASS )
{
vTaskDelay( uipINIT_WAIT );
}
portENTER_CRITICAL();
{
IntEnable = INT_RX_DONE;
VICIntEnable |= 0x00200000;
VICVectAddr21 = ( portLONG ) vEMAC_ISR_Wrapper;
prvSetMACAddress();
}
portEXIT_CRITICAL();
for( ;; )
{
/* Is there received data ready to be processed? */
uip_len = uiGetEMACRxData( uip_buf );
if( uip_len > 0 )
{
/* 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();
prvENET_Send();
}
}
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 )
{
prvENET_Send();
}
}
}
else
{
if( timer_expired( &periodic_timer ) )
{
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();
prvENET_Send();
}
}
/* 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 prvENET_Send(void)
{
RequestSend();
/* Copy the header into the Tx buffer. */
CopyToFrame_EMAC( uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
if( uip_len > uipTOTAL_FRAME_HEADER_SIZE )
{
CopyToFrame_EMAC( uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
}
DoSend_EMAC( uip_len );
RequestSend();
/* Copy the header into the Tx buffer. */
CopyToFrame_EMAC( uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
if( uip_len > uipTOTAL_FRAME_HEADER_SIZE )
{
CopyToFrame_EMAC( uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
}
DoSend_EMAC( uip_len );
}
/*-----------------------------------------------------------*/
static void prvSetMACAddress( void )
{
struct uip_eth_addr xAddr;
/* Configure the MAC address in the uIP stack. */
xAddr.addr[ 0 ] = uipMAC_ADDR0;
xAddr.addr[ 1 ] = uipMAC_ADDR1;
xAddr.addr[ 2 ] = uipMAC_ADDR2;
xAddr.addr[ 3 ] = uipMAC_ADDR3;
xAddr.addr[ 4 ] = uipMAC_ADDR4;
xAddr.addr[ 5 ] = uipMAC_ADDR5;
uip_setethaddr( xAddr );
}
/*-----------------------------------------------------------*/
void vApplicationProcessFormInput( portCHAR *pcInputString, portBASE_TYPE xInputLength )
{
char *c, *pcText;
static portCHAR cMessageForDisplay[ 32 ];
extern xQueueHandle xLCDQueue;
xLCDMessage xLCDMessage;
/* 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 )
{
vParTestSetLED( 5, 0 );
}
else
{
vParTestSetLED( 5, 1 );
}
if( strstr( c, "LED1=1" ) != NULL )
{
vParTestSetLED( 6, 0 );
}
else
{
vParTestSetLED( 6, 1 );
}
if( strstr( c, "LED2=1" ) != NULL )
{
vParTestSetLED( 7, 0 );
}
else
{
vParTestSetLED( 7, 1 );
}
/* Find the start of the text to be displayed on the LCD. */
pcText = strstr( c, "LCD=" );
pcText += strlen( "LCD=" );
/* Terminate the file name for further processing within uIP. */
*c = 0x00;
/* Terminate the LCD string. */
c = strstr( pcText, " " );
if( c != NULL )
{
*c = 0x00;
}
/* Add required spaces. */
while( ( c = strstr( pcText, "+" ) ) != NULL )
{
*c = ' ';
}
/* Write the message to the LCD. */
strcpy( cMessageForDisplay, pcText );
xLCDMessage.xColumn = 0;
xLCDMessage.pcMessage = cMessageForDisplay;
xQueueSend( xLCDQueue, &xLCDMessage, portMAX_DELAY );
}
}