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 "20071116" 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