mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-08-19 17:48:33 -04:00
Update to V4.0.4. Add in STR912 port and demo.
This commit is contained in:
Richard Barry
parent
05023971cb
commit
3dcbed5763
445 changed files with 30007 additions and 331 deletions
299
Demo/ARM9_STR91X_IAR/webserver/uIP_Task.c
Normal file
299
Demo/ARM9_STR91X_IAR/webserver/uIP_Task.c
Normal file
|
|
@ -0,0 +1,299 @@
|
|||
/*
|
||||
FreeRTOS.org V4.0.4 - Copyright (C) 2003-2006 Richard Barry.
|
||||
|
||||
This file is part of the FreeRTOS.org distribution.
|
||||
|
||||
FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
FreeRTOS.org 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.org; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||
can be applied.
|
||||
|
||||
***************************************************************************
|
||||
See http://www.FreeRTOS.org for documentation, latest information, license
|
||||
and contact details. Please ensure to read the configuration and relevant
|
||||
port sections of the online documentation.
|
||||
***************************************************************************
|
||||
*/
|
||||
/* Standard includes. */
|
||||
#include <string.h>
|
||||
|
||||
/* Library includes. */
|
||||
#include "91x_lib.h"
|
||||
#include "91x_enet.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"
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* MAC address configuration. */
|
||||
#define uipMAC_ADDR0 0x00
|
||||
#define uipMAC_ADDR1 0x12
|
||||
#define uipMAC_ADDR2 0x13
|
||||
#define uipMAC_ADDR3 0x14
|
||||
#define uipMAC_ADDR4 0x15
|
||||
#define uipMAC_ADDR5 0x16
|
||||
|
||||
/* IP address configuration. */
|
||||
#define uipIP_ADDR0 172
|
||||
#define uipIP_ADDR1 25
|
||||
#define uipIP_ADDR2 218
|
||||
#define uipIP_ADDR3 26
|
||||
|
||||
/* Shortcut to the header within the Rx buffer. */
|
||||
#define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
|
||||
|
||||
/* uIP update frequencies. */
|
||||
#define uipMAX_BLOCK_TIME (configTICK_RATE_HZ / 4)
|
||||
|
||||
/* Interrupt status bit definition. */
|
||||
#define uipDMI_RX_CURRENT_DONE 0x8000
|
||||
|
||||
/* If no buffers are available, then wait this long before looking again. */
|
||||
#define uipBUFFER_WAIT_DELAY ( 10 / portTICK_RATE_MS )
|
||||
#define uipBUFFER_WAIT_ATTEMPTS ( 10 )
|
||||
|
||||
/* 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 );
|
||||
|
||||
/*
|
||||
* Used to return a pointer to the next buffer to be used.
|
||||
*/
|
||||
extern unsigned portCHAR *pcGetNextBuffer( 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. */
|
||||
xSemaphoreHandle xSemaphore = 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;
|
||||
|
||||
/* Create the semaphore used by the ISR to wake this task. */
|
||||
vSemaphoreCreateBinary( xSemaphore );
|
||||
|
||||
/* 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. */
|
||||
ENET_InitClocksGPIO();
|
||||
ENET_Init();
|
||||
portENTER_CRITICAL();
|
||||
{
|
||||
ENET_Start();
|
||||
prvSetMACAddress();
|
||||
VIC_Config( ENET_ITLine, VIC_IRQ, 1 );
|
||||
VIC_ITCmd( ENET_ITLine, ENABLE );
|
||||
ENET_DMA->ISR = uipDMI_RX_CURRENT_DONE;
|
||||
ENET_DMA->IER = uipDMI_RX_CURRENT_DONE;
|
||||
}
|
||||
portEXIT_CRITICAL();
|
||||
|
||||
|
||||
while(1)
|
||||
{
|
||||
/* Is there received data ready to be processed? */
|
||||
uip_len = ENET_HandleRxPkt( 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( xSemaphore, configTICK_RATE_HZ / 2 );
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvENET_Send(void)
|
||||
{
|
||||
portBASE_TYPE i;
|
||||
static unsigned portCHAR *pcTxData;
|
||||
|
||||
/* Get a DMA buffer into which we can write the data to send. */
|
||||
for( i = 0; i < uipBUFFER_WAIT_ATTEMPTS; i++ )
|
||||
{
|
||||
pcTxData = pcGetNextBuffer();
|
||||
|
||||
if( pcTxData )
|
||||
{
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
vTaskDelay( uipBUFFER_WAIT_DELAY );
|
||||
}
|
||||
}
|
||||
|
||||
if( pcTxData )
|
||||
{
|
||||
/* Copy the header into the Tx buffer. */
|
||||
memcpy( ( void * ) pcTxData, ( void * ) uip_buf, uipTOTAL_FRAME_HEADER_SIZE );
|
||||
|
||||
/* If there is room, also copy in the application data if any. */
|
||||
if( ( uip_len > uipTOTAL_FRAME_HEADER_SIZE ) && ( uip_len <= ( ENET_BUFFER_SIZE - uipTOTAL_FRAME_HEADER_SIZE ) ) )
|
||||
{
|
||||
memcpy( ( void * ) &( pcTxData[ uipTOTAL_FRAME_HEADER_SIZE ] ), ( void * ) uip_appdata, ( uip_len - uipTOTAL_FRAME_HEADER_SIZE ) );
|
||||
}
|
||||
|
||||
ENET_TxPkt( &pcTxData, uip_len );
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void ENET_IRQHandler(void)
|
||||
{
|
||||
portBASE_TYPE xSwitchRequired;
|
||||
|
||||
/* Give the semaphore in case the uIP task needs waking. */
|
||||
xSwitchRequired = xSemaphoreGiveFromISR( xSemaphore, pdFALSE );
|
||||
|
||||
/* Clear the interrupt. */
|
||||
ENET_DMA->ISR = uipDMI_RX_CURRENT_DONE;
|
||||
|
||||
/* Switch tasks if necessary. */
|
||||
portEND_SWITCHING_ISR( xSwitchRequired );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
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 );
|
||||
|
||||
/* Write the MAC address to the MAC. */
|
||||
ENET_MAC->MAL = ( uipMAC_ADDR3 << 24 ) | ( uipMAC_ADDR2 << 16 ) | ( uipMAC_ADDR1 << 8 ) | ( uipMAC_ADDR0 );
|
||||
ENET_MAC->MAH = ( uipMAC_ADDR5 << 8 ) | ( uipMAC_ADDR4 );
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue