| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ |
| 2 | /* |
| 3 | * j1939.h |
| 4 | * |
| 5 | * Copyright (c) 2010-2011 EIA Electronics |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #ifndef _UAPI_CAN_J1939_H_ |
| 13 | #define _UAPI_CAN_J1939_H_ |
| 14 | |
| 15 | #include <linux/types.h> |
| 16 | #include <linux/socket.h> |
| 17 | #include <linux/can.h> |
| 18 | |
| 19 | #define J1939_MAX_UNICAST_ADDR 0xfd |
| 20 | #define J1939_IDLE_ADDR 0xfe |
| 21 | #define J1939_NO_ADDR 0xff /* == broadcast or no addr */ |
| 22 | #define J1939_NO_NAME 0 |
| 23 | #define J1939_PGN_REQUEST 0x0ea00 /* Request PG */ |
| 24 | #define J1939_PGN_ADDRESS_CLAIMED 0x0ee00 /* Address Claimed */ |
| 25 | #define J1939_PGN_ADDRESS_COMMANDED 0x0fed8 /* Commanded Address */ |
| 26 | #define J1939_PGN_PDU1_MAX 0x3ff00 |
| 27 | #define J1939_PGN_MAX 0x3ffff |
| 28 | #define J1939_NO_PGN 0x40000 |
| 29 | |
| 30 | /* J1939 Parameter Group Number |
| 31 | * |
| 32 | * bit 0-7 : PDU Specific (PS) |
| 33 | * bit 8-15 : PDU Format (PF) |
| 34 | * bit 16 : Data Page (DP) |
| 35 | * bit 17 : Reserved (R) |
| 36 | * bit 19-31 : set to zero |
| 37 | */ |
| 38 | typedef __u32 pgn_t; |
| 39 | |
| 40 | /* J1939 Priority |
| 41 | * |
| 42 | * bit 0-2 : Priority (P) |
| 43 | * bit 3-7 : set to zero |
| 44 | */ |
| 45 | typedef __u8 priority_t; |
| 46 | |
| 47 | /* J1939 NAME |
| 48 | * |
| 49 | * bit 0-20 : Identity Number |
| 50 | * bit 21-31 : Manufacturer Code |
| 51 | * bit 32-34 : ECU Instance |
| 52 | * bit 35-39 : Function Instance |
| 53 | * bit 40-47 : Function |
| 54 | * bit 48 : Reserved |
| 55 | * bit 49-55 : Vehicle System |
| 56 | * bit 56-59 : Vehicle System Instance |
| 57 | * bit 60-62 : Industry Group |
| 58 | * bit 63 : Arbitrary Address Capable |
| 59 | */ |
| 60 | typedef __u64 name_t; |
| 61 | |
| 62 | /* J1939 socket options */ |
| 63 | #define SOL_CAN_J1939 (SOL_CAN_BASE + CAN_J1939) |
| 64 | enum { |
| 65 | SO_J1939_FILTER = 1, /* set filters */ |
| 66 | SO_J1939_PROMISC = 2, /* set/clr promiscuous mode */ |
| 67 | SO_J1939_SEND_PRIO = 3, |
| 68 | SO_J1939_ERRQUEUE = 4, |
| 69 | }; |
| 70 | |
| 71 | enum { |
| 72 | SCM_J1939_DEST_ADDR = 1, |
| 73 | SCM_J1939_DEST_NAME = 2, |
| 74 | SCM_J1939_PRIO = 3, |
| 75 | SCM_J1939_ERRQUEUE = 4, |
| 76 | }; |
| 77 | |
| 78 | enum { |
| 79 | J1939_NLA_PAD, |
| 80 | J1939_NLA_BYTES_ACKED, |
| 81 | }; |
| 82 | |
| 83 | enum { |
| 84 | J1939_EE_INFO_NONE, |
| 85 | J1939_EE_INFO_TX_ABORT, |
| 86 | }; |
| 87 | |
| 88 | struct j1939_filter { |
| 89 | name_t name; |
| 90 | name_t name_mask; |
| 91 | pgn_t pgn; |
| 92 | pgn_t pgn_mask; |
| 93 | __u8 addr; |
| 94 | __u8 addr_mask; |
| 95 | }; |
| 96 | |
| 97 | #define J1939_FILTER_MAX 512 /* maximum number of j1939_filter set via setsockopt() */ |
| 98 | |
| 99 | #endif /* !_UAPI_CAN_J1939_H_ */ |