1 /*
2 * linux/can/core.h
3 *
4 * Protoypes and definitions for CAN protocol modules using the PF_CAN core
5 *
6 * Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
7 * Urs Thuermann <urs.thuermann@volkswagen.de>
8 * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
9 * All rights reserved.
10 *
11 * Send feedback to <socketcan-users@lists.berlios.de>
12 *
13 */
14
15 #ifndef CAN_CORE_H
16 #define CAN_CORE_H
17
18 #include <linux/can.h>
19 #include <linux/skbuff.h>
20 #include <linux/netdevice.h>
21
22 #define CAN_VERSION "20090105"
23
24 /* increment this number each time you change some user-space interface */
25 #define CAN_ABI_VERSION "8"
26
27 #define CAN_VERSION_STRING "rev " CAN_VERSION " abi " CAN_ABI_VERSION
28
29 #define DNAME(dev) ((dev) ? (dev)->name : "any")
30
31 /**
32 * struct can_proto - CAN protocol structure
33 * @type: type argument in socket() syscall, e.g. SOCK_DGRAM.
34 * @protocol: protocol number in socket() syscall.
35 * @capability: capability needed to open the socket, or -1 for no restriction.
36 * @ops: pointer to struct proto_ops for sock->ops.
37 * @prot: pointer to struct proto structure.
38 */
39 struct can_proto {
40 int type;
41 int protocol;
42 int capability;
43 struct proto_ops *ops;
44 struct proto *prot;
45 };
46
47 /* function prototypes for the CAN networklayer core (af_can.c) */
48
49 extern int can_proto_register(struct can_proto *cp);
50 extern void can_proto_unregister(struct can_proto *cp);
51
52 extern int can_rx_register(struct net_device *dev, canid_t can_id,
53 canid_t mask,
54 void (*func)(struct sk_buff *, void *),
55 void *data, char *ident);
56
57 extern void can_rx_unregister(struct net_device *dev, canid_t can_id,
58 canid_t mask,
59 void (*func)(struct sk_buff *, void *),
60 void *data);
61
62 extern int can_send(struct sk_buff *skb, int loop);
63
64 #endif /* CAN_CORE_H */
65
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