sntp: use udp framework

This commits update the support of sntp to use
the framework udp. This change allows to remove
all the reference to sntp in the main network
file net/net.c.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

3 files changed, 28 insertions, 89 deletions

diff --git a/net/net.c b/net/net.c
index 1ce0eb57a75..197fde3568d 100644
--- a/net/net.c
+++ b/net/net.c
@@ -72,12 +72,6 @@
  *	We want:	- load the boot file
  *	Next step:	none
  *
- * SNTP:
- *
- *	Prerequisites:	- own ethernet address
- *			- own IP address
- *	We want:	- network time
- *	Next step:	none
  *
  * WOL:
  *
@@ -119,9 +113,6 @@
 #include "nfs.h"
 #include "ping.h"
 #include "rarp.h"
-#if defined(CONFIG_CMD_SNTP)
-#include "sntp.h"
-#endif
 #if defined(CONFIG_CMD_WOL)
 #include "wol.h"
 #endif
@@ -185,13 +176,6 @@ u32 net_boot_file_size;
 /* Boot file size in blocks as reported by the DHCP server */
 u32 net_boot_file_expected_size_in_blocks;
 
-#if defined(CONFIG_CMD_SNTP)
-/* NTP server IP address */
-struct in_addr	net_ntp_server;
-/* offset time from UTC */
-int		net_ntp_time_offset;
-#endif
-
 static uchar net_pkt_buf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN];
 /* Receive packets */
 uchar *net_rx_packets[PKTBUFSRX];
@@ -521,11 +505,6 @@ restart:
 			nc_start();
 			break;
 #endif
-#if defined(CONFIG_CMD_SNTP)
-		case SNTP:
-			sntp_start();
-			break;
-#endif
 #if defined(CONFIG_CMD_DNS)
 		case DNS:
 			dns_start();
@@ -1352,14 +1331,6 @@ static int net_check_prereq(enum proto_t protocol)
 		}
 		goto common;
 #endif
-#if defined(CONFIG_CMD_SNTP)
-	case SNTP:
-		if (net_ntp_server.s_addr == 0) {
-			puts("*** ERROR: NTP server address not given\n");
-			return 1;
-		}
-		goto common;
-#endif
 #if defined(CONFIG_CMD_DNS)
 	case DNS:
 		if (net_dns_server.s_addr == 0) {
@@ -1385,7 +1356,7 @@ static int net_check_prereq(enum proto_t protocol)
 			puts("*** ERROR: `serverip' not set\n");
 			return 1;
 		}
-#if	defined(CONFIG_CMD_PING) || defined(CONFIG_CMD_SNTP) || \
+#if	defined(CONFIG_CMD_PING) || \
 	defined(CONFIG_CMD_DNS) || defined(CONFIG_PROT_UDP)
 common:
 #endif
diff --git a/net/sntp.c b/net/sntp.c
index 39d7664a224..d5d56719331 100644
--- a/net/sntp.c
+++ b/net/sntp.c
@@ -12,12 +12,17 @@
 #include <net.h>
 #include <rtc.h>
 
-#include "sntp.h"
+#include <net/sntp.h>
 
 #define SNTP_TIMEOUT 10000UL
 
 static int sntp_our_port;
 
+/* NTP server IP address */
+struct in_addr	net_ntp_server;
+/* offset time from UTC */
+int		net_ntp_time_offset;
+
 static void sntp_send(void)
 {
 	struct sntp_pkt_t pkt;
@@ -93,7 +98,25 @@ static void sntp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
 	net_set_state(NETLOOP_SUCCESS);
 }
 
-void sntp_start(void)
+/*
+ * SNTP:
+ *
+ *	Prerequisites:	- own ethernet address
+ *			- own IP address
+ *	We want:	- network time
+ *	Next step:	none
+ */
+int sntp_prereq(void *data)
+{
+	if (net_ntp_server.s_addr == 0) {
+		puts("*** ERROR: NTP server address not given\n");
+		return 1;
+	}
+
+	return 0;
+}
+
+int sntp_start(void *data)
 {
 	debug("%s\n", __func__);
 
@@ -102,4 +125,6 @@ void sntp_start(void)
 	memset(net_server_ethaddr, 0, sizeof(net_server_ethaddr));
 
 	sntp_send();
+
+	return 0;
 }
diff --git a/net/sntp.h b/net/sntp.h
deleted file mode 100644
index d3cbfbc69a6..00000000000
--- a/net/sntp.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * (C) Masami Komiya <mkomiya@sonare.it> 2005
- */
-
-#ifndef __SNTP_H__
-#define __SNTP_H__
-
-#define NTP_SERVICE_PORT	123
-#define SNTP_PACKET_LEN		48
-
-
-/* Leap Indicator */
-#define NTP_LI_NOLEAP		0x0
-#define NTP_LI_61SECS		0x1
-#define NTP_LI_59SECS		0x2
-#define NTP_LI_ALARM		0x3
-
-/* Version */
-
-#define NTP_VERSION		4
-
-/* Mode */
-#define NTP_MODE_RESERVED	0
-#define NTP_MODE_SYMACTIVE	1	/* Symmetric Active */
-#define NTP_MODE_SYMPASSIVE	2	/* Symmetric Passive */
-#define NTP_MODE_CLIENT		3
-#define NTP_MODE_SERVER		4
-#define NTP_MODE_BROADCAST	5
-#define NTP_MODE_NTPCTRL	6	/* Reserved for NTP control message */
-#define NTP_MODE_PRIVATE	7	/* Reserved for private use */
-
-struct sntp_pkt_t {
-#if __LITTLE_ENDIAN
-	uchar mode:3;
-	uchar vn:3;
-	uchar li:2;
-#else
-	uchar li:2;
-	uchar vn:3;
-	uchar mode:3;
-#endif
-	uchar stratum;
-	uchar poll;
-	uchar precision;
-	uint root_delay;
-	uint root_dispersion;
-	uint reference_id;
-	unsigned long long reference_timestamp;
-	unsigned long long originate_timestamp;
-	unsigned long long receive_timestamp;
-	unsigned long long transmit_timestamp;
-} __attribute__((packed));
-
-void sntp_start(void);	/* Begin SNTP */
-
-#endif /* __SNTP_H__ */