ethernet.c File Reference

Detailed Description

ethernet management for AVR32 UC3.

Compiler: IAR EWAVR32 and GNU GCC for AVR32
Supported devices: All AVR32 devices can be used.
AppNote:

Author:: Atmel Corporation: http://www.atmel.com
Support and FAQ: http://support.atmel.no/

Definition in file ethernet.c.

#include <string.h>
#include "gpio.h"
#include "FreeRTOS.h"
#include "task.h"
#include "partest.h"
#include "serial.h"
#include "conf_lwip_threads.h"
#include "ethernet.h"
#include "conf_eth.h"
#include "macb.h"
#include "lwip/sys.h"
#include "lwip/api.h"
#include "lwip/tcpip.h"
#include <lwip/dhcp.h>
#include <lwip/dns.h>
#include "lwip/memp.h"
#include "lwip/stats.h"
#include "netif/loopif.h"
#include "print_funcs.h"

Go to the source code of this file.

Functions

void dns_found (const char *name, struct ip_addr *addr, void *arg)

dns error message, tel if found or not

portTASK_FUNCTION (vStartEthernetTask, pvParameters)

create ethernet task, for ethernet management.

static void prvEthernetConfigureInterface (void *param)

function that look for DNS

static void prvInitDNS (void)

static void prvlwIPInit (void)

start lwIP layer.

void status_callback (struct netif *netif)

status callback used to pront address givern by DHCP

static void tcpip_init_done (void *arg)

Callback executed when the TCP/IP init is done.

void vStartEthernetTaskLauncher (unsigned portBASE_TYPE uxPriority)

Create the vStartEthernetTask task.

Variables

struct netif MACB_if

Function Documentation

void dns_found	(	const char *	name,
		struct ip_addr *	addr,
		void *	arg
	)

dns error message, tel if found or not

Definition at line 188 of file ethernet.c.

00189 {
00190   LWIP_UNUSED_ARG(arg);
00191   print_dbg(name);
00192   print_dbg(":");
00193   print_dbg(addr?inet_ntoa(*(struct in_addr*)addr):"<not found>\n");
00194 }

portTASK_FUNCTION	(	vStartEthernetTask	,
		pvParameters
	)

create ethernet task, for ethernet management.

Parameters:

uxPriority

Input. priority for the task, it should be low

Definition at line 117 of file ethernet.c.

References lwipBASIC_SSL_CLIENT_PRIORITY, lwipBASIC_SSL_CLIENT_STACK_SIZE, lwipBASIC_WEB_SERVER_PRIORITY, lwipBASIC_WEB_SERVER_STACK_SIZE, prvlwIPInit(), and sys_thread_new().

00118 {
00119    static const gpio_map_t MACB_GPIO_MAP =
00120    {
00121       {AVR32_MACB_MDC_0_PIN,    AVR32_MACB_MDC_0_FUNCTION   },
00122       {AVR32_MACB_MDIO_0_PIN,   AVR32_MACB_MDIO_0_FUNCTION  },
00123       {AVR32_MACB_RXD_0_PIN,    AVR32_MACB_RXD_0_FUNCTION   },
00124       {AVR32_MACB_TXD_0_PIN,    AVR32_MACB_TXD_0_FUNCTION   },
00125       {AVR32_MACB_RXD_1_PIN,    AVR32_MACB_RXD_1_FUNCTION   },
00126       {AVR32_MACB_TXD_1_PIN,    AVR32_MACB_TXD_1_FUNCTION   },
00127       {AVR32_MACB_TX_EN_0_PIN,  AVR32_MACB_TX_EN_0_FUNCTION },
00128       {AVR32_MACB_RX_ER_0_PIN,  AVR32_MACB_RX_ER_0_FUNCTION },
00129       {AVR32_MACB_RX_DV_0_PIN,  AVR32_MACB_RX_DV_0_FUNCTION },
00130       {AVR32_MACB_TX_CLK_0_PIN, AVR32_MACB_TX_CLK_0_FUNCTION}
00131    };
00132 
00133    // Assign GPIO to MACB
00134    gpio_enable_module(MACB_GPIO_MAP, sizeof(MACB_GPIO_MAP) / sizeof(MACB_GPIO_MAP[0]));
00135 
00136    /* Setup lwIP. */
00137    prvlwIPInit();
00138 
00139 #if (HTTP_USED == 1)
00140    /* Create the WEB server task.  This uses the lwIP RTOS abstraction layer.*/
00141    sys_thread_new( "WEB", vBasicWEBServer, ( void * ) NULL,
00142                    lwipBASIC_WEB_SERVER_STACK_SIZE,
00143                    lwipBASIC_WEB_SERVER_PRIORITY );
00144 #endif
00145    
00146 #if (SSL_USED == 1)
00147    /* Create the SSL Client task.  This uses the lwIP RTOS abstraction layer.*/
00148    sys_thread_new( "SSL", vBasicSSLClient, ( void * ) NULL,
00149                    lwipBASIC_SSL_CLIENT_STACK_SIZE,
00150                    lwipBASIC_SSL_CLIENT_PRIORITY );
00151 #endif   
00152    
00153   // Kill this task.
00154   vTaskDelete(NULL);
00155 }

static void prvEthernetConfigureInterface ( void * param ) [static]

function that look for DNS

set ethernet config

Definition at line 230 of file ethernet.c.

References ETHERNET_CONF_ETHADDR0, ETHERNET_CONF_ETHADDR1, ETHERNET_CONF_ETHADDR2, ETHERNET_CONF_ETHADDR3, ETHERNET_CONF_ETHADDR4, ETHERNET_CONF_ETHADDR5, ETHERNET_CONF_GATEWAY_ADDR0, ETHERNET_CONF_GATEWAY_ADDR1, ETHERNET_CONF_GATEWAY_ADDR2, ETHERNET_CONF_GATEWAY_ADDR3, ETHERNET_CONF_IPADDR0, ETHERNET_CONF_IPADDR1, ETHERNET_CONF_IPADDR2, ETHERNET_CONF_IPADDR3, ETHERNET_CONF_NET_MASK0, ETHERNET_CONF_NET_MASK1, ETHERNET_CONF_NET_MASK2, ETHERNET_CONF_NET_MASK3, ethernetif_init(), MACB_if, prvInitDNS(), and status_callback().

Referenced by prvlwIPInit().

00231 {
00232    struct ip_addr    xIpAddr, xNetMask, xGateway;
00233    extern err_t      ethernetif_init( struct netif *netif );
00234    unsigned portCHAR MacAddress[6];
00235 
00236    /* Default MAC addr. */
00237    MacAddress[0] = ETHERNET_CONF_ETHADDR0;
00238    MacAddress[1] = ETHERNET_CONF_ETHADDR1;
00239    MacAddress[2] = ETHERNET_CONF_ETHADDR2;
00240    MacAddress[3] = ETHERNET_CONF_ETHADDR3;
00241    MacAddress[4] = ETHERNET_CONF_ETHADDR4;
00242    MacAddress[5] = ETHERNET_CONF_ETHADDR5;
00243 
00244    /* pass the MAC address to MACB module */
00245    vMACBSetMACAddress( MacAddress );
00246    
00247 #if LWIP_DHCP
00248   
00249   xIpAddr.addr  = 0;
00250   xNetMask.addr = 0;
00251   xNetMask.addr = 0;
00252   
00253   /* add data to netif */
00254   netif_add( &MACB_if, &xIpAddr, &xNetMask, &xGateway, NULL, ethernetif_init, tcpip_input );
00255 
00256   /* make it the default interface */
00257   netif_set_default( &MACB_if );
00258   
00259   /* Setup callback function for netif status change */
00260   netif_set_status_callback(&MACB_if, status_callback);
00261 
00262   /* bring it up */
00263   dhcp_start( &MACB_if );  
00264   print_dbg("LwIP: DHCP Started ...\n");
00265 
00266 #if LWIP_DNS  
00267   /* Init DNS */  
00268   prvInitDNS();
00269   print_dbg("LwIP: DNS Started ...\n");
00270 #endif
00271   
00272 #else
00273    /* Default ip addr. */
00274    IP4_ADDR( &xIpAddr,ETHERNET_CONF_IPADDR0,ETHERNET_CONF_IPADDR1,ETHERNET_CONF_IPADDR2,ETHERNET_CONF_IPADDR3 );
00275 
00276    /* Default Subnet mask. */
00277    IP4_ADDR( &xNetMask,ETHERNET_CONF_NET_MASK0,ETHERNET_CONF_NET_MASK1,ETHERNET_CONF_NET_MASK2,ETHERNET_CONF_NET_MASK3 );
00278 
00279    /* Default Gw addr. */
00280    IP4_ADDR( &xGateway,ETHERNET_CONF_GATEWAY_ADDR0,ETHERNET_CONF_GATEWAY_ADDR1,ETHERNET_CONF_GATEWAY_ADDR2,ETHERNET_CONF_GATEWAY_ADDR3 );
00281 
00282    /* add data to netif */
00283    netif_add( &MACB_if, &xIpAddr, &xNetMask, &xGateway, NULL, ethernetif_init, tcpip_input );
00284 
00285    /* make it the default interface */
00286    netif_set_default( &MACB_if );
00287 
00288    /* bring it up */
00289    netif_set_up( &MACB_if );
00290    
00291   
00292 #endif   
00293    
00294     
00295 }

static void prvInitDNS ( void ) [static]

Referenced by prvEthernetConfigureInterface().

static void prvlwIPInit ( void ) [static]

start lwIP layer.

Definition at line 199 of file ethernet.c.

References prvEthernetConfigureInterface(), sys_sem_free(), sys_sem_new(), and tcpip_init_done().

Referenced by portTASK_FUNCTION().

00200 {
00201   sys_sem_t sem;
00202 
00203 
00204   sem = sys_sem_new(0); // Create a new semaphore.
00205   tcpip_init(tcpip_init_done, &sem);
00206   sys_sem_wait(sem);    // Block until the lwIP stack is initialized.
00207   sys_sem_free(sem);    // Free the semaphore.
00208 
00209   /* Set hw and IP parameters, initialize MACB too */
00210   prvEthernetConfigureInterface(NULL);
00211   
00212 }

void status_callback ( struct netif * netif )

status callback used to pront address givern by DHCP

Definition at line 169 of file ethernet.c.

References MACB_if.

Referenced by prvEthernetConfigureInterface().

00170 {   
00171   if (netif_is_up(netif)) { 
00172     print_dbg("LwIP: status_callback==UP, local interface IP is ");
00173     print_dbg(inet_ntoa(*(struct in_addr*)&(netif->ip_addr)));
00174     print_dbg("\n");
00175   } else {
00176     print_dbg("status_callback==DOWN\n");
00177   }
00178 #if ( LWIP_NETIF_HOSTNAME == 1)
00179   print_dbg("LwIP: Host Name Is : ");
00180   print_dbg(MACB_if.hostname);
00181   print_dbg("\n");
00182 #endif
00183 }

static void tcpip_init_done ( void * arg ) [static]

Callback executed when the TCP/IP init is done.

Definition at line 159 of file ethernet.c.

References sys_sem_signal().

Referenced by prvlwIPInit().

00160 {
00161   sys_sem_t *sem;
00162   sem = (sys_sem_t *)arg;
00163   sys_sem_signal(*sem); // Signal the waiting thread that the TCP/IP init is done.
00164 }

void vStartEthernetTaskLauncher ( unsigned portBASE_TYPE uxPriority )

Create the vStartEthernetTask task.

Parameters:

uxPriority

Input; priority of the task to create.

Definition at line 105 of file ethernet.c.

References configMINIMAL_STACK_SIZE.

Referenced by main().

00106 {
00107   /* Spawn the Sentinel task. */
00108   xTaskCreate( vStartEthernetTask, ( const signed portCHAR * )"ETHLAUNCH",
00109                configMINIMAL_STACK_SIZE, NULL, uxPriority, ( xTaskHandle * )NULL );
00110 }

Variable Documentation

struct netif MACB_if

Definition at line 92 of file ethernet.c.

Referenced by prvEthernetConfigureInterface(), and status_callback().


Functions
void	dns_found (const char name, struct ip_addr addr, void *arg)
	dns error message, tel if found or not
	portTASK_FUNCTION (vStartEthernetTask, pvParameters)
	create ethernet task, for ethernet management.
static void	prvEthernetConfigureInterface (void *param)
	function that look for DNS
static void	prvInitDNS (void)
static void	prvlwIPInit (void)
	start lwIP layer.
void	status_callback (struct netif *netif)
	status callback used to pront address givern by DHCP
static void	tcpip_init_done (void *arg)
	Callback executed when the TCP/IP init is done.
void	vStartEthernetTaskLauncher (unsigned portBASE_TYPE uxPriority)
	Create the vStartEthernetTask task.
Variables
struct netif	MACB_if