static void rza1_recv_task(void *arg) {
struct netif *netif = (struct netif*)arg;
u16_t recv_size;
struct pbuf *p;
int cnt;
while (1) {
sys_arch_sem_wait(&recv_ready_sem, 0);
for (cnt = 0; cnt < 16; cnt++) {
recv_size = ethernet_receive();
if (recv_size != 0) {
p = pbuf_alloc(PBUF_RAW, recv_size, PBUF_RAM);
if (p != NULL) {
(void)ethernet_read((char *)p->payload, p->len);
/* full packet send to tcpip_thread to process */
if (netif->input(p, netif) != ERR_OK) {
/* Free buffer */
pbuf_free(p);
}
}
} else {
break;
}
}
}
}
static void emac_read_packet(uint32_t ul_status)
{
// Because the LWIP stack can become corrupted if we work with it in parallel,
// we may have to wait for the next Spin() call to read the next packet.
if (LockLWIP())
{
do {
// read all queued packets from the RX buffer
} while (ethernet_read());
UnlockLWIP();
}
else
{
reprap.GetNetwork()->ReadPacket();
ethernet_set_rx_callback(NULL);
}
}
static void rza1_recv_task(void *arg) {
struct netif *netif = (struct netif*)arg;
struct eth_hdr *ethhdr;
u16_t recv_size;
struct pbuf *p;
int cnt;
while (1) {
sys_arch_sem_wait(&recv_ready_sem, 0);
for (cnt = 0; cnt < 16; cnt++) {
recv_size = ethernet_receive();
if (recv_size != 0) {
p = pbuf_alloc(PBUF_RAW, recv_size, PBUF_RAM);
if (p != NULL) {
(void)ethernet_read((char *)p->payload, p->len);
ethhdr = p->payload;
switch (htons(ethhdr->type)) {
case ETHTYPE_IP:
case ETHTYPE_ARP:
#if PPPOE_SUPPORT
case ETHTYPE_PPPOEDISC:
case ETHTYPE_PPPOE:
#endif /* PPPOE_SUPPORT */
/* full packet send to tcpip_thread to process */
if (netif->input(p, netif) != ERR_OK) {
/* Free buffer */
pbuf_free(p);
}
break;
default:
/* Return buffer */
pbuf_free(p);
break;
}
}
} else {
break;
}
}
}
}
void Network::Spin()
{
// Basically we can't do anything if we can't interact with LWIP
if (!LockLWIP())
{
platform->ClassReport(longWait);
return;
}
if (state == NetworkActive)
{
// See if we can read any packets
if (readingData)
{
readingData = false;
do {
// read all queued packets from the RX buffer
} while (ethernet_read());
ethernet_set_rx_callback(&emac_read_packet);
}
// See if we can send anything
NetworkTransaction *r = writingTransactions;
if (r != NULL && r->Send())
{
// We're done, free up this transaction
ConnectionState *cs = r->cs;
NetworkTransaction *rn = r->nextWrite;
writingTransactions = r->next;
AppendTransaction(&freeTransactions, r);
// If there is more data to write on this connection, do it next time
if (cs != NULL)
{
cs->sendingTransaction = rn;
}
if (rn != NULL)
{
PrependTransaction(&writingTransactions, rn);
}
}
}
else if (state == NetworkInitializing && establish_ethernet_link())
{
start_ethernet(platform->IPAddress(), platform->NetMask(), platform->GateWay());
ethernet_set_rx_callback(&emac_read_packet);
httpd_init();
ftpd_init();
telnetd_init();
netbios_init();
state = NetworkActive;
}
UnlockLWIP();
platform->ClassReport(longWait);
}