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Commit | Line | Data |
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ea287deb WD |
1 | /* |
2 | * SNTP support driver | |
3 | * | |
4 | * Masami Komiya <mkomiya@sonare.it> 2005 | |
5 | * | |
6 | */ | |
7 | ||
8 | #include <common.h> | |
9 | #include <command.h> | |
10 | #include <net.h> | |
11 | #include <rtc.h> | |
12 | ||
13 | #include "sntp.h" | |
14 | ||
49f3bdbb | 15 | #define SNTP_TIMEOUT 10000UL |
ea287deb | 16 | |
38ba2558 | 17 | static int sntp_our_port; |
ea287deb | 18 | |
38ba2558 | 19 | static void sntp_send(void) |
ea287deb WD |
20 | { |
21 | struct sntp_pkt_t pkt; | |
22 | int pktlen = SNTP_PACKET_LEN; | |
23 | int sport; | |
24 | ||
0ebf04c6 | 25 | debug("%s\n", __func__); |
ea287deb | 26 | |
6c3234a3 | 27 | memset(&pkt, 0, sizeof(pkt)); |
ea287deb WD |
28 | |
29 | pkt.li = NTP_LI_NOLEAP; | |
30 | pkt.vn = NTP_VERSION; | |
31 | pkt.mode = NTP_MODE_CLIENT; | |
32 | ||
1203fcce JH |
33 | memcpy((char *)net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE, |
34 | (char *)&pkt, pktlen); | |
ea287deb | 35 | |
38ba2558 | 36 | sntp_our_port = 10000 + (get_timer(0) % 4096); |
ea287deb WD |
37 | sport = NTP_SERVICE_PORT; |
38 | ||
1203fcce | 39 | net_send_udp_packet(net_server_ethaddr, net_ntp_server, sport, |
38ba2558 | 40 | sntp_our_port, pktlen); |
ea287deb WD |
41 | } |
42 | ||
38ba2558 | 43 | static void sntp_timeout_handler(void) |
ea287deb | 44 | { |
6c3234a3 | 45 | puts("Timeout\n"); |
22f6e99d | 46 | net_set_state(NETLOOP_FAIL); |
ea287deb WD |
47 | return; |
48 | } | |
49 | ||
049a95a7 JH |
50 | static void sntp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
51 | unsigned src, unsigned len) | |
ea287deb | 52 | { |
414eec35 | 53 | struct sntp_pkt_t *rpktp = (struct sntp_pkt_t *)pkt; |
ea287deb | 54 | struct rtc_time tm; |
414eec35 | 55 | ulong seconds; |
ea287deb | 56 | |
0ebf04c6 | 57 | debug("%s\n", __func__); |
ea287deb | 58 | |
38ba2558 | 59 | if (dest != sntp_our_port) |
6c3234a3 | 60 | return; |
ea287deb | 61 | |
414eec35 WD |
62 | /* |
63 | * As the RTC's used in U-Boot sepport second resolution only | |
64 | * we simply ignore the sub-second field. | |
65 | */ | |
6c3234a3 | 66 | memcpy(&seconds, &rpktp->transmit_timestamp, sizeof(ulong)); |
ea287deb | 67 | |
414eec35 | 68 | to_tm(ntohl(seconds) - 2208988800UL + NetTimeOffset, &tm); |
643d1ab2 | 69 | #if defined(CONFIG_CMD_DATE) |
6c3234a3 | 70 | rtc_set(&tm); |
ea287deb | 71 | #endif |
6c3234a3 | 72 | printf("Date: %4d-%02d-%02d Time: %2d:%02d:%02d\n", |
38ba2558 JH |
73 | tm.tm_year, tm.tm_mon, tm.tm_mday, |
74 | tm.tm_hour, tm.tm_min, tm.tm_sec); | |
ea287deb | 75 | |
22f6e99d | 76 | net_set_state(NETLOOP_SUCCESS); |
ea287deb WD |
77 | } |
78 | ||
38ba2558 | 79 | void sntp_start(void) |
ea287deb | 80 | { |
0ebf04c6 | 81 | debug("%s\n", __func__); |
ea287deb | 82 | |
38ba2558 | 83 | NetSetTimeout(SNTP_TIMEOUT, sntp_timeout_handler); |
049a95a7 | 84 | net_set_udp_handler(sntp_handler); |
0adb5b76 | 85 | memset(net_server_ethaddr, 0, sizeof(net_server_ethaddr)); |
ea287deb | 86 | |
38ba2558 | 87 | sntp_send(); |
ea287deb | 88 | } |