projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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2 | /* |
| 3 | * linux/can/core.h | |
| 4 | * | |
| 5 | * Protoypes and definitions for CAN protocol modules using the PF_CAN core | |
| 6 | * | |
| 7 | * Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de> | |
| 8 | * Urs Thuermann <urs.thuermann@volkswagen.de> | |
| cb5635a3 | 9 | * Copyright (c) 2002-2017 Volkswagen Group Electronic Research |
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10 | * All rights reserved. |
| 11 | * | |
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12 | */ |
| 13 | ||
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14 | #ifndef _CAN_CORE_H |
| 15 | #define _CAN_CORE_H | |
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16 | |
| 17 | #include <linux/can.h> | |
| 18 | #include <linux/skbuff.h> | |
| 19 | #include <linux/netdevice.h> | |
| 20 | ||
| cb5635a3 | 21 | #define CAN_VERSION "20170425" |
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22 | |
| 23 | /* increment this number each time you change some user-space interface */ | |
| 8b01939f | 24 | #define CAN_ABI_VERSION "9" |
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25 | |
| 26 | #define CAN_VERSION_STRING "rev " CAN_VERSION " abi " CAN_ABI_VERSION | |
| 27 | ||
| 28 | #define DNAME(dev) ((dev) ? (dev)->name : "any") | |
| 29 | ||
| 30 | /** | |
| 31 | * struct can_proto - CAN protocol structure | |
| 32 | * @type: type argument in socket() syscall, e.g. SOCK_DGRAM. | |
| 33 | * @protocol: protocol number in socket() syscall. | |
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34 | * @ops: pointer to struct proto_ops for sock->ops. |
| 35 | * @prot: pointer to struct proto structure. | |
| 36 | */ | |
| 37 | struct can_proto { | |
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38 | int type; |
| 39 | int protocol; | |
| 40 | const struct proto_ops *ops; | |
| 41 | struct proto *prot; | |
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42 | }; |
| 43 | ||
| 44 | /* function prototypes for the CAN networklayer core (af_can.c) */ | |
| 45 | ||
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46 | extern int can_proto_register(const struct can_proto *cp); |
| 47 | extern void can_proto_unregister(const struct can_proto *cp); | |
| 0d66548a | 48 | |
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49 | int can_rx_register(struct net *net, struct net_device *dev, |
| 50 | canid_t can_id, canid_t mask, | |
| f1712c73 ED |
51 | void (*func)(struct sk_buff *, void *), |
| 52 | void *data, char *ident, struct sock *sk); | |
| 0d66548a | 53 | |
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54 | extern void can_rx_unregister(struct net *net, struct net_device *dev, |
| 55 | canid_t can_id, canid_t mask, | |
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56 | void (*func)(struct sk_buff *, void *), |
| 57 | void *data); | |
| 58 | ||
| 59 | extern int can_send(struct sk_buff *skb, int loop); | |
| 53914b67 | 60 | extern int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); |
| 0d66548a | 61 | |
| 42193e3e | 62 | #endif /* !_CAN_CORE_H */ |