4 * Masami Komiya <mkomiya@sonare.it> 2005
16 #define SNTP_TIMEOUT 10000UL
18 static int sntp_our_port;
20 static void sntp_send(void)
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 *)net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE,
35 (char *)&pkt, pktlen);
37 sntp_our_port = 10000 + (get_timer(0) % 4096);
38 sport = NTP_SERVICE_PORT;
40 net_send_udp_packet(net_server_ethaddr, net_ntp_server, sport,
41 sntp_our_port, pktlen);
44 static void sntp_timeout_handler(void)
47 net_set_state(NETLOOP_FAIL);
51 static void sntp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
52 unsigned src, unsigned len)
54 #ifdef CONFIG_TIMESTAMP
55 struct sntp_pkt_t *rpktp = (struct sntp_pkt_t *)pkt;
60 debug("%s\n", __func__);
62 if (dest != sntp_our_port)
65 #ifdef CONFIG_TIMESTAMP
67 * As the RTC's used in U-Boot support second resolution only
68 * we simply ignore the sub-second field.
70 memcpy(&seconds, &rpktp->transmit_timestamp, sizeof(ulong));
72 rtc_to_tm(ntohl(seconds) - 2208988800UL + net_ntp_time_offset, &tm);
73 #if defined(CONFIG_CMD_DATE)
78 ret = uclass_get_device(UCLASS_RTC, 0, &dev);
80 printf("SNTP: cannot find RTC: err=%d\n", ret);
87 printf("Date: %4d-%02d-%02d Time: %2d:%02d:%02d\n",
88 tm.tm_year, tm.tm_mon, tm.tm_mday,
89 tm.tm_hour, tm.tm_min, tm.tm_sec);
92 net_set_state(NETLOOP_SUCCESS);
97 debug("%s\n", __func__);
99 net_set_timeout_handler(SNTP_TIMEOUT, sntp_timeout_handler);
100 net_set_udp_handler(sntp_handler);
101 memset(net_server_ethaddr, 0, sizeof(net_server_ethaddr));