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