static int tcp_wait_for_state(const struct socket *sock, enum tcp_state state)
{
int to;
for (to = 0; to < 100; to++) {
ndev_poll();
if (sock->state == state)
return 0;
mdelay(100);
}
return -ETIMEDOUT;
}
static char shell_getchar(void)
{
char ch;
while (1) {
int ret;
ret = uart_read(CONFIG_UART_INDEX, (__u8 *)&ch, 1, WAIT_ASYNC);
if (ret > 0)
break;
// TODO: replace with tasklet
ndev_poll();
device_monitor();
}
return ch;
}
static struct sock_buff *sock_recv_packet(struct socket *sock)
{
__UNUSED__ __u32 psr;
struct sock_buff *skb;
struct list_node *first;
int to = 10000; // timeout
int ret;
char key;
while (1) {
ret = uart_read(CONFIG_UART_INDEX, (__u8 *)&key, 1, WAIT_ASYNC);
if (ret > 0 && key == CHAR_CTRL_C)
return NULL;
ndev_poll();
lock_irq_psr(psr);
if (!list_is_empty(&sock->rx_qu)) {
unlock_irq_psr(psr);
break;
}
unlock_irq_psr(psr);
if (sock->obstruct_flags == 1) {
to--;
if (to == 0)
break;
}
udelay(1000);
}
if (to > 0) {
lock_irq_psr(psr);
first = sock->rx_qu.next;
list_del_node(first);
unlock_irq_psr(psr);
skb = container_of(first, struct sock_buff, node);
return skb;
}
