LXR linux/include/linux/can/core.h

   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 */
  12
  13#ifndef _CAN_CORE_H
  14#define _CAN_CORE_H
  15
  16#include <linux/can.h>
  17#include <linux/skbuff.h>
  18#include <linux/netdevice.h>
  19
  20#define CAN_VERSION "20120528"
  21
  22/* increment this number each time you change some user-space interface */
  23#define CAN_ABI_VERSION "9"
  24
  25#define CAN_VERSION_STRING "rev " CAN_VERSION " abi " CAN_ABI_VERSION
  26
  27#define DNAME(dev) ((dev) ? (dev)->name : "any")
  28
  29/**
  30 * struct can_proto - CAN protocol structure
  31 * @type:       type argument in socket() syscall, e.g. SOCK_DGRAM.
  32 * @protocol:   protocol number in socket() syscall.
  33 * @ops:        pointer to struct proto_ops for sock->ops.
  34 * @prot:       pointer to struct proto structure.
  35 */
  36struct can_proto {
  37        int type;
  38        int protocol;
  39        const struct proto_ops *ops;
  40        struct proto *prot;
  41};
  42
  43/* function prototypes for the CAN networklayer core (af_can.c) */
  44
  45extern int  can_proto_register(const struct can_proto *cp);
  46extern void can_proto_unregister(const struct can_proto *cp);
  47
  48extern int  can_rx_register(struct net_device *dev, canid_t can_id,
  49                            canid_t mask,
  50                            void (*func)(struct sk_buff *, void *),
  51                            void *data, char *ident);
  52
  53extern void can_rx_unregister(struct net_device *dev, canid_t can_id,
  54                              canid_t mask,
  55                              void (*func)(struct sk_buff *, void *),
  56                              void *data);
  57
  58extern int can_send(struct sk_buff *skb, int loop);
  59extern int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
  60
  61#endif /* !_CAN_CORE_H */
  62