blob: d3ac6ec1d7e7f62264a813911c16928a63f42b61 [file] [log] [blame]
/*
* FreeRTOS Kernel V10.3.0
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://www.FreeRTOS.org
* http://aws.amazon.com/freertos
*
* 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 "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 SemaphoreHandle_t 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 = ( long ) 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( char *pcInputString, portBASE_TYPE xInputLength )
{
char *c, *pcText;
static char cMessageForDisplay[ 32 ];
extern QueueHandle_t 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 );
}
}