Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / net / sntp.c

diff --git a/qemu/roms/u-boot/net/sntp.c b/qemu/roms/u-boot/net/sntp.c
new file mode 100644 (file)
index 0000000..5de1952
--- /dev/null
+++ b/qemu/roms/u-boot/net/sntp.c
@@ -0,0 +1,92 @@
+/*
+ * SNTP support driver
+ *
+ * Masami Komiya <mkomiya@sonare.it> 2005
+ *
+ */
+
+#include <common.h>
+#include <command.h>
+#include <net.h>
+#include <rtc.h>
+
+#include "sntp.h"
+
+#define SNTP_TIMEOUT 10000UL
+
+static int SntpOurPort;
+
+static void
+SntpSend(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 *)NetTxPacket + NetEthHdrSize() + IP_UDP_HDR_SIZE,
+               (char *)&pkt, pktlen);
+
+       SntpOurPort = 10000 + (get_timer(0) % 4096);
+       sport = NTP_SERVICE_PORT;
+
+       NetSendUDPPacket(NetServerEther, NetNtpServerIP, sport, SntpOurPort,
+               pktlen);
+}
+
+static void
+SntpTimeout(void)
+{
+       puts("Timeout\n");
+       net_set_state(NETLOOP_FAIL);
+       return;
+}
+
+static void
+SntpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
+           unsigned len)
+{
+       struct sntp_pkt_t *rpktp = (struct sntp_pkt_t *)pkt;
+       struct rtc_time tm;
+       ulong seconds;
+
+       debug("%s\n", __func__);
+
+       if (dest != SntpOurPort)
+               return;
+
+       /*
+        * As the RTC's used in U-Boot sepport second resolution only
+        * we simply ignore the sub-second field.
+        */
+       memcpy(&seconds, &rpktp->transmit_timestamp, sizeof(ulong));
+
+       to_tm(ntohl(seconds) - 2208988800UL + NetTimeOffset, &tm);
+#if defined(CONFIG_CMD_DATE)
+       rtc_set(&tm);
+#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);
+
+       net_set_state(NETLOOP_SUCCESS);
+}
+
+void
+SntpStart(void)
+{
+       debug("%s\n", __func__);
+
+       NetSetTimeout(SNTP_TIMEOUT, SntpTimeout);
+       net_set_udp_handler(SntpHandler);
+       memset(NetServerEther, 0, sizeof(NetServerEther));
+
+       SntpSend();
+}