/** * In this function, the hardware should be initialized. * Called from ethernetif_init(). * * @param netif the already initialized lwip network interface structure * for this ethernetif */ static void low_level_init(struct netif *netif) { /* set MAC hardware address length */ netif->hwaddr_len = ETHARP_HWADDR_LEN; /* set MAC hardware address */ netif->hwaddr[0] = MAC_ADDR0; netif->hwaddr[1] = MAC_ADDR1; netif->hwaddr[2] = MAC_ADDR2; netif->hwaddr[3] = MAC_ADDR3; netif->hwaddr[4] = MAC_ADDR4; netif->hwaddr[5] = MAC_ADDR5; /* maximum transfer unit */ netif->mtu = netifMTU; // device capabilities. // don't set NETIF_FLAG_ETHARP if this device is not an ethernet one netif->flags |= NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP; /* Do whatever else is needed to initialize interface. */ if( s_xSemaphore == NULL ) { vSemaphoreCreateBinary( s_xSemaphore ); xSemaphoreTake( s_xSemaphore, 0); } /* Initialise the MAC. */ ENET_InitClocksGPIO(); ENET_Init(PHY_AUTO_NEGOTIATION); ENET_Start(); portENTER_CRITICAL(); { /*set MAC physical*/ ENET_MAC->MAH = (MAC_ADDR5<<8) + MAC_ADDR4; ENET_MAC->MAL = (MAC_ADDR3<<24) + (MAC_ADDR2<<16) + (MAC_ADDR1<<8) + MAC_ADDR0; VIC_Config( ENET_ITLine, VIC_IRQ, 1 ); VIC_ITCmd( ENET_ITLine, ENABLE ); ENET_DMA->ISR = DMI_RX_CURRENT_DONE; ENET_DMA->IER = DMI_RX_CURRENT_DONE; } portEXIT_CRITICAL(); netif->flags |= NETIF_FLAG_LINK_UP; /* Create the task that handles the EMAC. */ xTaskCreate( ethernetif_input, "ETH_INT", netifINTERFACE_TASK_STACK_SIZE, (void *)netif, netifINTERFACE_TASK_PRIORITY, NULL ); }
static void low_level_init(struct netif *netif) { /* set MAC hardware address length */ netif->hwaddr_len = 6; /* set MAC hardware address */ netif->hwaddr[0] = MAC_ADDR0; netif->hwaddr[1] = MAC_ADDR1; netif->hwaddr[2] = MAC_ADDR2; netif->hwaddr[3] = MAC_ADDR3; netif->hwaddr[4] = MAC_ADDR4; netif->hwaddr[5] = MAC_ADDR5; /* maximum transfer unit */ netif->mtu = netifMTU; /* broadcast capability */ netif->flags = NETIF_FLAG_BROADCAST; s_pxNetIf = netif; if( s_xSemaphore == NULL ) { vSemaphoreCreateBinary( s_xSemaphore ); xSemaphoreTake( s_xSemaphore, 0); } /* Do whatever else is needed to initialize interface. */ /* Initialise the MAC. */ ENET_InitClocksGPIO(); ENET_Init(); ENET_Start(); portENTER_CRITICAL(); { /*set MAC physical*/ ENET_MAC->MAH = (MAC_ADDR5<<8) + MAC_ADDR4; ENET_MAC->MAL = (MAC_ADDR3<<24) + (MAC_ADDR2<<16) + (MAC_ADDR1<<8) + MAC_ADDR0; VIC_Config( ENET_ITLine, VIC_IRQ, 1 ); VIC_ITCmd( ENET_ITLine, ENABLE ); ENET_DMA->ISR = DMI_RX_CURRENT_DONE; ENET_DMA->IER = DMI_RX_CURRENT_DONE; } portEXIT_CRITICAL(); /* Create the task that handles the EMAC. */ xTaskCreate( ethernetif_input, ( signed char * ) "ETH_INT", netifINTERFACE_TASK_STACK_SIZE, NULL, netifINTERFACE_TASK_PRIORITY, NULL ); }
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 ); uip_ipaddr( xIPAddr, uipNET_MASK0, uipNET_MASK1, uipNET_MASK2, uipNET_MASK3 ); uip_setnetmask( xIPAddr ); uip_ipaddr( xIPAddr, uipGATEWAY_ADDR0, uipGATEWAY_ADDR1, uipGATEWAY_ADDR2, uipGATEWAY_ADDR3 ); uip_setdraddr( 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 ); } } } }