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  */
  36 struct 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
  45 extern int  can_proto_register(const struct can_proto *cp);
  46 extern void can_proto_unregister(const struct can_proto *cp);
  47
  48 int can_rx_register(struct net_device *dev, canid_t can_id, canid_t mask,
  49                     void (*func)(struct sk_buff *, void *),
  50                     void *data, char *ident, struct sock *sk);
  51
  52 extern void can_rx_unregister(struct net_device *dev, canid_t can_id,
  53                               canid_t mask,
  54                               void (*func)(struct sk_buff *, void *),
  55                               void *data);
  56
  57 extern int can_send(struct sk_buff *skb, int loop);
  58 extern int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
  59
  60 #endif /* CAN_CORE_H */