| Lothar Felten | 776fc10 | 2018-06-22 22:29:54 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* |
| 3 | * wol - Wake-on-LAN |
| 4 | * |
| 5 | * Supports both Wake-on-LAN packet types: |
| 6 | * - EtherType 0x0842 packets |
| 7 | * - UDP packets on ports 0, 7 and 9. |
| 8 | * |
| 9 | * Copyright 2018 Lothar Felten, lothar.felten@gmail.com |
| 10 | */ |
| 11 | |
| 12 | #if defined(CONFIG_CMD_WOL) |
| 13 | |
| 14 | #ifndef __WOL_H__ |
| 15 | #define __WOL_H__ |
| 16 | |
| 17 | #include <net.h> |
| 18 | |
| 19 | /**********************************************************************/ |
| 20 | |
| 21 | #define WOL_SYNC_BYTE 0xFF |
| 22 | #define WOL_SYNC_COUNT 6 |
| 23 | #define WOL_MAC_REPETITIONS 16 |
| 24 | #define WOL_DEFAULT_TIMEOUT 5000 |
| 25 | #define WOL_PASSWORD_4B 4 |
| 26 | #define WOL_PASSWORD_6B 6 |
| 27 | |
| 28 | /* |
| 29 | * Wake-on-LAN header |
| 30 | */ |
| 31 | struct wol_hdr { |
| 32 | u8 wol_sync[WOL_SYNC_COUNT]; /* sync bytes */ |
| 33 | u8 wol_dest[WOL_MAC_REPETITIONS * ARP_HLEN]; /* 16x MAC */ |
| 34 | u8 wol_passwd[0]; /* optional */ |
| 35 | }; |
| 36 | |
| 37 | /* |
| 38 | * Initialize wol (beginning of netloop) |
| 39 | */ |
| 40 | void wol_start(void); |
| 41 | |
| 42 | /* |
| 43 | * Check incoming Wake-on-LAN packet for: |
| 44 | * - sync bytes |
| 45 | * - sixteen copies of the target MAC address |
| 46 | * |
| 47 | * Optionally store the four or six byte password in the environment |
| 48 | * variable "wolpassword" |
| 49 | * |
| 50 | * @param ip IP header in the packet |
| 51 | * @param len Packet length |
| 52 | */ |
| 53 | void wol_receive(struct ip_udp_hdr *ip, unsigned int len); |
| 54 | |
| 55 | /* |
| 56 | * Set the timeout for the reception of a Wake-on-LAN packet |
| 57 | * |
| 58 | * @param timeout in milliseconds |
| 59 | */ |
| 60 | void wol_set_timeout(ulong timeout); |
| 61 | |
| 62 | /**********************************************************************/ |
| 63 | |
| 64 | #endif /* __WOL_H__ */ |
| 65 | #endif |