You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
345 lines
9.2 KiB
C
345 lines
9.2 KiB
C
/*
|
|
FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.
|
|
|
|
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 exception 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.
|
|
Alternative commercial license and support terms are also available upon
|
|
request. See the licensing section of http://www.FreeRTOS.org for full
|
|
license details.
|
|
|
|
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 along
|
|
with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
|
|
Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
|
|
|
|
|
***************************************************************************
|
|
* *
|
|
* Looking for a quick start? Then check out the FreeRTOS eBook! *
|
|
* See http://www.FreeRTOS.org/Documentation for details *
|
|
* *
|
|
***************************************************************************
|
|
|
|
1 tab == 4 spaces!
|
|
|
|
Please ensure to read the configuration and relevant port sections of the
|
|
online documentation.
|
|
|
|
http://www.FreeRTOS.org - Documentation, latest information, license and
|
|
contact details.
|
|
|
|
http://www.SafeRTOS.com - A version that is certified for use in safety
|
|
critical systems.
|
|
|
|
http://www.OpenRTOS.com - Commercial support, development, porting,
|
|
licensing and training services.
|
|
*/
|
|
/* 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 );
|
|
}
|
|
}
|
|
|