1 files changed, 65 insertions, 0 deletions
diff --git a/net/wol.h b/net/wol.h
new file mode 100644
index 0000000..ebc81f2
--- /dev/null
+++ b/net/wol.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * wol - Wake-on-LAN
+ *
+ * Supports both Wake-on-LAN packet types:
+ * - EtherType 0x0842 packets
+ * - UDP packets on ports 0, 7 and 9.
+ *
+ * Copyright 2018 Lothar Felten, lothar.felten@gmail.com
+ */
+
+#if defined(CONFIG_CMD_WOL)
+
+#ifndef __WOL_H__
+#define __WOL_H__
+
+#include <net.h>
+
+/**********************************************************************/
+
+#define WOL_SYNC_BYTE			0xFF
+#define WOL_SYNC_COUNT			6
+#define WOL_MAC_REPETITIONS		16
+#define WOL_DEFAULT_TIMEOUT		5000
+#define WOL_PASSWORD_4B			4
+#define WOL_PASSWORD_6B			6
+
+/*
+ * Wake-on-LAN header
+ */
+struct wol_hdr {
+	u8	wol_sync[WOL_SYNC_COUNT];			/* sync bytes */
+	u8	wol_dest[WOL_MAC_REPETITIONS * ARP_HLEN];	/* 16x MAC */
+	u8	wol_passwd[0];					/* optional */
+};
+
+/*
+ * Initialize wol (beginning of netloop)
+ */
+void wol_start(void);
+
+/*
+ * Check incoming Wake-on-LAN packet for:
+ * - sync bytes
+ * - sixteen copies of the target MAC address
+ *
+ * Optionally store the four or six byte password in the environment
+ * variable "wolpassword"
+ *
+ * @param ip IP header in the packet
+ * @param len Packet length
+ */
+void wol_receive(struct ip_udp_hdr *ip, unsigned int len);
+
+/*
+ * Set the timeout for the reception of a Wake-on-LAN packet
+ *
+ * @param timeout in milliseconds
+ */
+void wol_set_timeout(ulong timeout);
+
+/**********************************************************************/
+
+#endif /* __WOL_H__ */
+#endif