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 * @ops: pointer to struct proto_ops for sock->ops. 36 * @prot: pointer to struct proto structure. 37 */ 38 struct can_proto { 39 int type; 40 int protocol; 41 struct proto_ops *ops; 42 struct proto *prot; 43 }; 44 45 /* function prototypes for the CAN networklayer core (af_can.c) */ 46 47 extern int can_proto_register(struct can_proto *cp); 48 extern void can_proto_unregister(struct can_proto *cp); 49 50 extern int can_rx_register(struct net_device *dev, canid_t can_id, 51 canid_t mask, 52 void (*func)(struct sk_buff *, void *), 53 void *data, char *ident); 54 55 extern void can_rx_unregister(struct net_device *dev, canid_t can_id, 56 canid_t mask, 57 void (*func)(struct sk_buff *, void *), 58 void *data); 59 60 extern int can_send(struct sk_buff *skb, int loop); 61 62 #endif /* CAN_CORE_H */ 63