4 * Masami Komiya <mkomiya@sonare.it> 2005
15 #define SNTP_TIMEOUT 10000UL
17 static int SntpOurPort;
22 struct sntp_pkt_t pkt;
23 int pktlen = SNTP_PACKET_LEN;
26 debug("%s\n", __func__);
28 memset(&pkt, 0, sizeof(pkt));
30 pkt.li = NTP_LI_NOLEAP;
32 pkt.mode = NTP_MODE_CLIENT;
34 memcpy((char *)NetTxPacket + NetEthHdrSize() + IP_UDP_HDR_SIZE,
35 (char *)&pkt, pktlen);
37 SntpOurPort = 10000 + (get_timer(0) % 4096);
38 sport = NTP_SERVICE_PORT;
40 NetSendUDPPacket(net_server_ethaddr, net_ntp_server, sport, SntpOurPort,
48 net_set_state(NETLOOP_FAIL);
52 static void sntp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
53 unsigned src, unsigned len)
55 struct sntp_pkt_t *rpktp = (struct sntp_pkt_t *)pkt;
59 debug("%s\n", __func__);
61 if (dest != SntpOurPort)
65 * As the RTC's used in U-Boot sepport second resolution only
66 * we simply ignore the sub-second field.
68 memcpy(&seconds, &rpktp->transmit_timestamp, sizeof(ulong));
70 to_tm(ntohl(seconds) - 2208988800UL + NetTimeOffset, &tm);
71 #if defined(CONFIG_CMD_DATE)
74 printf("Date: %4d-%02d-%02d Time: %2d:%02d:%02d\n",
75 tm.tm_year, tm.tm_mon, tm.tm_mday,
76 tm.tm_hour, tm.tm_min, tm.tm_sec);
78 net_set_state(NETLOOP_SUCCESS);
84 debug("%s\n", __func__);
86 NetSetTimeout(SNTP_TIMEOUT, SntpTimeout);
87 net_set_udp_handler(sntp_handler);
88 memset(net_server_ethaddr, 0, sizeof(net_server_ethaddr));