/*
|
* SNTP support driver
|
*
|
* Masami Komiya <mkomiya@sonare.it> 2005
|
*
|
*/
|
|
#include <common.h>
|
#include <command.h>
|
#include <dm.h>
|
#include <net.h>
|
#include <rtc.h>
|
|
#include "sntp.h"
|
|
#define SNTP_TIMEOUT 10000UL
|
|
static int sntp_our_port;
|
|
static void sntp_send(void)
|
{
|
struct sntp_pkt_t pkt;
|
int pktlen = SNTP_PACKET_LEN;
|
int sport;
|
|
debug("%s\n", __func__);
|
|
memset(&pkt, 0, sizeof(pkt));
|
|
pkt.li = NTP_LI_NOLEAP;
|
pkt.vn = NTP_VERSION;
|
pkt.mode = NTP_MODE_CLIENT;
|
|
memcpy((char *)net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE,
|
(char *)&pkt, pktlen);
|
|
sntp_our_port = 10000 + (get_timer(0) % 4096);
|
sport = NTP_SERVICE_PORT;
|
|
net_send_udp_packet(net_server_ethaddr, net_ntp_server, sport,
|
sntp_our_port, pktlen);
|
}
|
|
static void sntp_timeout_handler(void)
|
{
|
puts("Timeout\n");
|
net_set_state(NETLOOP_FAIL);
|
return;
|
}
|
|
static void sntp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
|
unsigned src, unsigned len)
|
{
|
#ifdef CONFIG_TIMESTAMP
|
struct sntp_pkt_t *rpktp = (struct sntp_pkt_t *)pkt;
|
struct rtc_time tm;
|
ulong seconds;
|
#endif
|
|
debug("%s\n", __func__);
|
|
if (dest != sntp_our_port)
|
return;
|
|
#ifdef CONFIG_TIMESTAMP
|
/*
|
* As the RTC's used in U-Boot support second resolution only
|
* we simply ignore the sub-second field.
|
*/
|
memcpy(&seconds, &rpktp->transmit_timestamp, sizeof(ulong));
|
|
rtc_to_tm(ntohl(seconds) - 2208988800UL + net_ntp_time_offset, &tm);
|
#if defined(CONFIG_CMD_DATE)
|
# ifdef CONFIG_DM_RTC
|
struct udevice *dev;
|
int ret;
|
|
ret = uclass_get_device(UCLASS_RTC, 0, &dev);
|
if (ret)
|
printf("SNTP: cannot find RTC: err=%d\n", ret);
|
else
|
dm_rtc_set(dev, &tm);
|
# else
|
rtc_set(&tm);
|
# endif
|
#endif
|
printf("Date: %4d-%02d-%02d Time: %2d:%02d:%02d\n",
|
tm.tm_year, tm.tm_mon, tm.tm_mday,
|
tm.tm_hour, tm.tm_min, tm.tm_sec);
|
#endif
|
|
net_set_state(NETLOOP_SUCCESS);
|
}
|
|
void sntp_start(void)
|
{
|
debug("%s\n", __func__);
|
|
net_set_timeout_handler(SNTP_TIMEOUT, sntp_timeout_handler);
|
net_set_udp_handler(sntp_handler);
|
memset(net_server_ethaddr, 0, sizeof(net_server_ethaddr));
|
|
sntp_send();
|
}
|
