1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * SNTP support driver
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Masami Komiya <mkomiya@sonare.it> 2005
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <common.h>
9*4882a593Smuzhiyun #include <command.h>
10*4882a593Smuzhiyun #include <dm.h>
11*4882a593Smuzhiyun #include <net.h>
12*4882a593Smuzhiyun #include <rtc.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include "sntp.h"
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #define SNTP_TIMEOUT 10000UL
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun static int sntp_our_port;
19*4882a593Smuzhiyun
sntp_send(void)20*4882a593Smuzhiyun static void sntp_send(void)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun struct sntp_pkt_t pkt;
23*4882a593Smuzhiyun int pktlen = SNTP_PACKET_LEN;
24*4882a593Smuzhiyun int sport;
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun debug("%s\n", __func__);
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun memset(&pkt, 0, sizeof(pkt));
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun pkt.li = NTP_LI_NOLEAP;
31*4882a593Smuzhiyun pkt.vn = NTP_VERSION;
32*4882a593Smuzhiyun pkt.mode = NTP_MODE_CLIENT;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun memcpy((char *)net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE,
35*4882a593Smuzhiyun (char *)&pkt, pktlen);
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun sntp_our_port = 10000 + (get_timer(0) % 4096);
38*4882a593Smuzhiyun sport = NTP_SERVICE_PORT;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun net_send_udp_packet(net_server_ethaddr, net_ntp_server, sport,
41*4882a593Smuzhiyun sntp_our_port, pktlen);
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
sntp_timeout_handler(void)44*4882a593Smuzhiyun static void sntp_timeout_handler(void)
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun puts("Timeout\n");
47*4882a593Smuzhiyun net_set_state(NETLOOP_FAIL);
48*4882a593Smuzhiyun return;
49*4882a593Smuzhiyun }
50*4882a593Smuzhiyun
sntp_handler(uchar * pkt,unsigned dest,struct in_addr sip,unsigned src,unsigned len)51*4882a593Smuzhiyun static void sntp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
52*4882a593Smuzhiyun unsigned src, unsigned len)
53*4882a593Smuzhiyun {
54*4882a593Smuzhiyun #ifdef CONFIG_TIMESTAMP
55*4882a593Smuzhiyun struct sntp_pkt_t *rpktp = (struct sntp_pkt_t *)pkt;
56*4882a593Smuzhiyun struct rtc_time tm;
57*4882a593Smuzhiyun ulong seconds;
58*4882a593Smuzhiyun #endif
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun debug("%s\n", __func__);
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun if (dest != sntp_our_port)
63*4882a593Smuzhiyun return;
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun #ifdef CONFIG_TIMESTAMP
66*4882a593Smuzhiyun /*
67*4882a593Smuzhiyun * As the RTC's used in U-Boot support second resolution only
68*4882a593Smuzhiyun * we simply ignore the sub-second field.
69*4882a593Smuzhiyun */
70*4882a593Smuzhiyun memcpy(&seconds, &rpktp->transmit_timestamp, sizeof(ulong));
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun rtc_to_tm(ntohl(seconds) - 2208988800UL + net_ntp_time_offset, &tm);
73*4882a593Smuzhiyun #if defined(CONFIG_CMD_DATE)
74*4882a593Smuzhiyun # ifdef CONFIG_DM_RTC
75*4882a593Smuzhiyun struct udevice *dev;
76*4882a593Smuzhiyun int ret;
77*4882a593Smuzhiyun
78*4882a593Smuzhiyun ret = uclass_get_device(UCLASS_RTC, 0, &dev);
79*4882a593Smuzhiyun if (ret)
80*4882a593Smuzhiyun printf("SNTP: cannot find RTC: err=%d\n", ret);
81*4882a593Smuzhiyun else
82*4882a593Smuzhiyun dm_rtc_set(dev, &tm);
83*4882a593Smuzhiyun # else
84*4882a593Smuzhiyun rtc_set(&tm);
85*4882a593Smuzhiyun # endif
86*4882a593Smuzhiyun #endif
87*4882a593Smuzhiyun printf("Date: %4d-%02d-%02d Time: %2d:%02d:%02d\n",
88*4882a593Smuzhiyun tm.tm_year, tm.tm_mon, tm.tm_mday,
89*4882a593Smuzhiyun tm.tm_hour, tm.tm_min, tm.tm_sec);
90*4882a593Smuzhiyun #endif
91*4882a593Smuzhiyun
92*4882a593Smuzhiyun net_set_state(NETLOOP_SUCCESS);
93*4882a593Smuzhiyun }
94*4882a593Smuzhiyun
sntp_start(void)95*4882a593Smuzhiyun void sntp_start(void)
96*4882a593Smuzhiyun {
97*4882a593Smuzhiyun debug("%s\n", __func__);
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun net_set_timeout_handler(SNTP_TIMEOUT, sntp_timeout_handler);
100*4882a593Smuzhiyun net_set_udp_handler(sntp_handler);
101*4882a593Smuzhiyun memset(net_server_ethaddr, 0, sizeof(net_server_ethaddr));
102*4882a593Smuzhiyun
103*4882a593Smuzhiyun sntp_send();
104*4882a593Smuzhiyun }
105