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 * 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 */
  39struct 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
  49extern int  can_proto_register(struct can_proto *cp);
  50extern void can_proto_unregister(struct can_proto *cp);
  51
  52extern 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
  57extern 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
  62extern int can_send(struct sk_buff *skb, int loop);
  63
  64#endif /* CAN_CORE_H */
  65