/*
* Start UDP socket, listening at local port PORT
*/
int udp_init (udp_t *u, unsigned port)
{
int i;
for (i = 0; i < MAX_SOCK_NUM; i++) {
uint8_t s = w5100_readSnSR(i);
if (s == SnSR_CLOSED || s == SnSR_FIN_WAIT) {
u->sock = i;
break;
}
}
if (u->sock == MAX_SOCK_NUM)
return 0;
u->port = port;
socket_init (u->sock, SnMR_UDP, u->port, 0);
return 1;
}
int client_connect (client_t *c)
{
int i;
if (c->sock != MAX_SOCK_NUM)
return 0;
for (i = 0; i < MAX_SOCK_NUM; i++) {
unsigned s = w5100_readSnSR (i);
if (s == SnSR_CLOSED || s == SnSR_FIN_WAIT) {
c->sock = i;
break;
}
}
if (c->sock == MAX_SOCK_NUM)
return 0;
_client_srcport++;
if (_client_srcport == 0)
_client_srcport = 1024;
socket_init (c->sock, SnMR_TCP, _client_srcport, 0);
if (! socket_connect (c->sock, c->ip, c->port)) {
c->sock = MAX_SOCK_NUM;
return 0;
}
while (client_status(c) != SnSR_ESTABLISHED) {
usleep (10000);
if (client_status(c) == SnSR_CLOSED) {
c->sock = MAX_SOCK_NUM;
return 0;
}
}
return 1;
}
unsigned client_status (client_t *c)
{
if (c->sock == MAX_SOCK_NUM)
return SnSR_CLOSED;
return w5100_readSnSR (c->sock);
}
