/* | |
FreeRTOS V6.0.1 - Copyright (C) 2009 Real Time Engineers Ltd. | |
*************************************************************************** | |
* * | |
* If you are: * | |
* * | |
* + New to FreeRTOS, * | |
* + Wanting to learn FreeRTOS or multitasking in general quickly * | |
* + Looking for basic training, * | |
* + Wanting to improve your FreeRTOS skills and productivity * | |
* * | |
* then take a look at the FreeRTOS eBook * | |
* * | |
* "Using the FreeRTOS Real Time Kernel - a Practical Guide" * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
* A pdf reference manual is also available. Both are usually delivered * | |
* to your inbox within 20 minutes to two hours when purchased between 8am * | |
* and 8pm GMT (although please allow up to 24 hours in case of * | |
* exceptional circumstances). 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 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. | |
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! | |
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" | |
#include "lcd_message.h" | |
/* uip includes. */ | |
#include "hw_types.h" | |
#include "uip.h" | |
#include "uip_arp.h" | |
#include "httpd.h" | |
#include "timer.h" | |
#include "clock-arch.h" | |
#include "hw_ethernet.h" | |
#include "ethernet.h" | |
#include "hw_memmap.h" | |
#include "lmi_flash.h" | |
#include "sysctl.h" | |
/* Demo includes. */ | |
#include "emac.h" | |
#include "partest.h" | |
/*-----------------------------------------------------------*/ | |
/* IP address configuration. */ | |
#define uipIP_ADDR0 192 | |
#define uipIP_ADDR1 168 | |
#define uipIP_ADDR2 0 | |
#define uipIP_ADDR3 201 | |
/* Netmask configuration. */ | |
#define uipNETMASK_0 255 | |
#define uipNETMASK_1 255 | |
#define uipNETMASK_2 255 | |
#define uipNETMASK_3 0 | |
/* How long to wait before attempting to connect the MAC again. */ | |
#define uipINIT_WAIT 100 | |
/* 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 )( void ); | |
/* Enable/Reset the Ethernet Controller */ | |
SysCtlPeripheralEnable( SYSCTL_PERIPH_ETH ); | |
SysCtlPeripheralReset( SYSCTL_PERIPH_ETH ); | |
/* 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 ); | |
uip_ipaddr( xIPAddr, uipNETMASK_0, uipNETMASK_1, uipNETMASK_2, uipNETMASK_3 ); | |
uip_setnetmask( xIPAddr ); | |
httpd_init(); | |
while( vInitEMAC() != pdPASS ) | |
{ | |
vTaskDelay( uipINIT_WAIT ); | |
} | |
prvSetMACAddress(); | |
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) | |
{ | |
vInitialiseSend(); | |
vIncrementTxLength( uip_len ); | |
vSendBufferToMAC(); | |
vInitialiseSend(); | |
vIncrementTxLength( uip_len ); | |
vSendBufferToMAC(); | |
} | |
/*-----------------------------------------------------------*/ | |
static void prvSetMACAddress( void ) | |
{ | |
unsigned long ulUser0, ulUser1; | |
unsigned char pucMACArray[8]; | |
struct uip_eth_addr xAddr; | |
/* Get the device MAC address from flash */ | |
FlashUserGet(&ulUser0, &ulUser1); | |
/* Convert the MAC address from flash into sequence of bytes. */ | |
pucMACArray[0] = ((ulUser0 >> 0) & 0xff); | |
pucMACArray[1] = ((ulUser0 >> 8) & 0xff); | |
pucMACArray[2] = ((ulUser0 >> 16) & 0xff); | |
pucMACArray[3] = ((ulUser1 >> 0) & 0xff); | |
pucMACArray[4] = ((ulUser1 >> 8) & 0xff); | |
pucMACArray[5] = ((ulUser1 >> 16) & 0xff); | |
/* Program the MAC address. */ | |
EthernetMACAddrSet(ETH_BASE, pucMACArray); | |
xAddr.addr[ 0 ] = pucMACArray[0]; | |
xAddr.addr[ 1 ] = pucMACArray[1]; | |
xAddr.addr[ 2 ] = pucMACArray[2]; | |
xAddr.addr[ 3 ] = pucMACArray[3]; | |
xAddr.addr[ 4 ] = pucMACArray[4]; | |
xAddr.addr[ 5 ] = pucMACArray[5]; | |
uip_setethaddr( xAddr ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vApplicationProcessFormInput( char *pcInputString, portBASE_TYPE xInputLength ) | |
{ | |
char *c, *pcText; | |
static char cMessageForDisplay[ 32 ]; | |
extern xQueueHandle xOLEDQueue; | |
xOLEDMessage xOLEDMessage; | |
/* 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( 0, 1 ); | |
} | |
else | |
{ | |
vParTestSetLED( 0, 0 ); | |
} | |
/* 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 ); | |
xOLEDMessage.pcMessage = cMessageForDisplay; | |
xQueueSend( xOLEDQueue, &xOLEDMessage, portMAX_DELAY ); | |
} | |
} | |