test.c

NXPl788上lwip的无操作系统移植,基于Embest开发板

#if LWIP_AUTOIP
  autoip_set_struct(&netif, &netif_autoip);
#endif /* LWIP_AUTOIP */
#if LWIP_DHCP
  dhcp_set_struct(&netif, &netif_dhcp);
  dhcp_start(&netif);
#elif LWIP_AUTOIP
  autoip_start(&netif);
#else /* LWIP_DHCP */
  netif_set_up(&netif);
#endif /* LWIP_DHCP */
#else /* USE_ETHERNET_TCPIP */
  /* Use ethernet for PPPoE only */
  netif.flags &= ~(NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP); /* no ARP */
  netif.flags |= NETIF_FLAG_ETHERNET; /* but pure ethernet */
#endif /* USE_ETHERNET_TCPIP */

#if PPP_SUPPORT && PPPOE_SUPPORT
  /* start PPPoE after ethernet netif is added! */
  ppp_desc = pppOverEthernetOpen(&netif, NULL, NULL, pppLinkStatusCallback, NULL);
#endif /* PPP_SUPPORT && PPPOE_SUPPORT */

#endif /* USE_ETHERNET */
}

#if LWIP_DNS_APP && LWIP_DNS
void dns_found(const char *name, ip_addr_t *addr, void *arg)
{
  LWIP_UNUSED_ARG(arg);
  printf("%s: %s\n", name, addr ? ip_ntoa(addr) : "<not found>");
}

void dns_dorequest(void *arg)
{
  char* dnsname = "3com.com";
  ip_addr_t dnsresp;
  LWIP_UNUSED_ARG(arg);
 
  if (dns_gethostbyname(dnsname, &dnsresp, dns_found, 0) == ERR_OK) {
    dns_found(dnsname, &dnsresp, 0);
  }
}
#endif /* LWIP_DNS_APP && LWIP_DNS */

/* This function initializes applications */
static void
apps_init()
{
#if LWIP_DNS_APP && LWIP_DNS
  /* wait until the netif is up (for dhcp, autoip or ppp) */
  sys_timeout(5000, dns_dorequest, NULL);
#endif /* LWIP_DNS_APP && LWIP_DNS */

#if LWIP_CHARGEN_APP && LWIP_SOCKET
  chargen_init();
#endif /* LWIP_CHARGEN_APP && LWIP_SOCKET */

#if LWIP_PING_APP && LWIP_RAW && LWIP_ICMP
  ping_init();
#endif /* LWIP_PING_APP && LWIP_RAW && LWIP_ICMP */

#if LWIP_NETBIOS_APP && LWIP_UDP
  netbios_init();
#endif /* LWIP_NETBIOS_APP && LWIP_UDP */

#if LWIP_HTTPD_APP && LWIP_TCP
#ifdef LWIP_HTTPD_APP_NETCONN
  http_server_netconn_init();
#else /* LWIP_HTTPD_APP_NETCONN */
  httpd_init();
#endif /* LWIP_HTTPD_APP_NETCONN */
#endif /* LWIP_HTTPD_APP && LWIP_TCP */

#if LWIP_NETIO_APP && LWIP_TCP
  netio_init();
#endif /* LWIP_NETIO_APP && LWIP_TCP */

#if LWIP_RTP_APP && LWIP_SOCKET && LWIP_IGMP
  rtp_init();
#endif /* LWIP_RTP_APP && LWIP_SOCKET && LWIP_IGMP */

#if LWIP_SNTP_APP && LWIP_SOCKET
  sntp_init();
#endif /* LWIP_SNTP_APP && LWIP_SOCKET */

#if LWIP_SHELL_APP && LWIP_NETCONN
  shell_init();
#endif /* LWIP_SHELL_APP && LWIP_NETCONN */
#if LWIP_TCPECHO_APP
#if LWIP_NETCONN && defined(LWIP_TCPECHO_APP_NETCONN)
  tcpecho_init();
#else /* LWIP_NETCONN && defined(LWIP_TCPECHO_APP_NETCONN) */
  echo_init();
#endif
#endif /* LWIP_TCPECHO_APP && LWIP_NETCONN */
#if LWIP_UDPECHO_APP && LWIP_NETCONN
  udpecho_init();
#endif /* LWIP_UDPECHO_APP && LWIP_NETCONN */
#if LWIP_SOCKET_EXAMPLES_APP && LWIP_SOCKET
  socket_examples_init();
#endif /* LWIP_SOCKET_EXAMPLES_APP && LWIP_SOCKET */
}

/* This function initializes this lwIP test. When NO_SYS=1, this is done in
 * the main_loop context (there is no other one), when NO_SYS=0, this is done
 * in the tcpip_thread context */
static void
test_init(void * arg)
{ /* remove compiler warning */
#if NO_SYS
  LWIP_UNUSED_ARG(arg);
#else /* NO_SYS */
  sys_sem_t *init_sem;
  LWIP_ASSERT("arg != NULL", arg != NULL);
  init_sem = (sys_sem_t*)arg;
#endif /* NO_SYS */

  /* init network interfaces */
  msvc_netif_init();

  /* init apps */
  apps_init();

#if !NO_SYS
  sys_sem_signal(init_sem);
#endif /* !NO_SYS */
}

#if PPP_SUPPORT
static void pppCloseCallback(void *arg)
{
  int pd = (int)arg;
  pppClose(pd);
}
#endif /* PPP_SUPPORT */

/* This is somewhat different to other ports: we have a main loop here:
 * a dedicated task that waits for packets to arrive. This would normally be
 * done from interrupt context with embedded hardware, but we don't get an
 * interrupt in windows for that :-) */
void main_loop()
{
#if !NO_SYS
  err_t err;
  sys_sem_t init_sem;
#endif /* NO_SYS */
#if PPP_SUPPORT
#if !USE_ETHERNET
  int count;
  u8_t rxbuf[1024];
#endif
  volatile int callClosePpp = 0;
#endif /* PPP_SUPPORT */

  /* initialize lwIP stack, network interfaces and applications */
#if NO_SYS
  lwip_init();
  test_init(NULL);
#else /* NO_SYS */
  err = sys_sem_new(&init_sem, 0);
  tcpip_init(test_init, &init_sem);
  /* we have to wait for initialization to finish before
   * calling update_adapter()! */
  sys_sem_wait(&init_sem);
  sys_sem_free(&init_sem);
#endif /* NO_SYS */

  /* MAIN LOOP for driver update (and timers if NO_SYS) */
  while (!_kbhit()) {
#if NO_SYS
    /* handle timers (already done in tcpip.c when NO_SYS=0) */
    sys_check_timeouts();
#endif /* NO_SYS */

#if USE_ETHERNET
#if !PCAPIF_RX_USE_THREAD
    /* check for packets and link status*/
    pcapif_poll(&netif);
    /* When pcapif_poll comes back, there are not packets, so sleep to
       prevent 100% CPU load. Don't do this in an embedded system since it
       increases latency! */
    sys_msleep(1);
#else /* !PCAPIF_RX_USE_THREAD */
    sys_msleep(50);
#endif /* !PCAPIF_RX_USE_THREAD */
#else /* USE_ETHERNET */
#if 0 /* set this to 1 if PPP_INPROC_OWNTHREAD==0 or not defined (see ppp.c) */
    /* try to read characters from serial line and pass them to PPPoS */
    count = sio_read(ppp_sio, (u8_t*)rxbuf, 1024);
    if(count > 0) {
      pppos_input(ppp_desc, rxbuf, count);
    } else
#endif
    {
      /* nothing received, give other tasks a chance to run */
      sys_msleep(1);
    }

#endif /* USE_ETHERNET */
#if !LWIP_NETIF_LOOPBACK_MULTITHREADING
    /* check for loopback packets on all netifs */
    netif_poll_all();
#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */
#if PPP_SUPPORT
    {
    int do_hup = 0;
    if(do_hup) {
      pppSigHUP(ppp_desc);
      do_hup = 0;
    }
    }
    if(callClosePpp && (ppp_desc >= 0)) {
      /* make sure to disconnect PPP before stopping the program... */
      callClosePpp = 0;
#if NO_SYS
      pppClose(ppp_desc);
#else
      tcpip_callback_with_block(pppCloseCallback, (void*)ppp_desc, 0);
#endif
      ppp_desc = -1;
    }
#endif /* PPP_SUPPORT */
  }

#if PPP_SUPPORT
    if(ppp_desc >= 0) {
      u32_t started;
      printf("Closing PPP connection...\n");
      /* make sure to disconnect PPP before stopping the program... */
#if NO_SYS
      pppClose(ppp_desc);
#else
      tcpip_callback_with_block(pppCloseCallback, (void*)ppp_desc, 0);
#endif
      ppp_desc = -1;
      /* Wait for some time to let PPP finish... */
      started = sys_now();
      do
      {
#if USE_ETHERNET
        pcapif_poll(&netif);
#else /* USE_ETHERNET */
        sys_msleep(50);
#endif /* USE_ETHERNET */
        /* @todo: need a better check here: only wait until PPP is down */
      } while(sys_now() - started < 5000);
    }
#endif /* PPP_SUPPORT */
#if USE_ETHERNET
  /* release the pcap library... */
  pcapif_shutdown(&netif);
#endif /* USE_ETHERNET */
}

#if PPP_SUPPORT && PPPOS_SUPPORT
int main(int argc, char **argv)
#else /* PPP_SUPPORT && PPPOS_SUPPORT */
int main(void)
#endif /* PPP_SUPPORT && PPPOS_SUPPORT */
{
#if PPP_SUPPORT && PPPOS_SUPPORT
  if(argc > 1) {
    sio_idx = (u8_t)atoi(argv[1]);
  }
  printf("Using serial port %d for PPP\n", sio_idx);
#endif /* PPP_SUPPORT && PPPOS_SUPPORT */
  /* no stdio-buffering, please! */
  setvbuf(stdout, NULL,_IONBF, 0);

  main_loop();

  return 0;
}