root/include/linux/if_ec.h

INCLUDED FROM

DEFINITIONS

1. ec_sk

/* Definitions for Econet sockets. */

#ifndef __LINUX_IF_EC
#define __LINUX_IF_EC

/* User visible stuff. Glibc provides its own but libc5 folk will use these */

struct ec_addr
{
  unsigned char station;                /* Station number.  */
  unsigned char net;                    /* Network number.  */
};

struct sockaddr_ec
{
  unsigned short sec_family;
  unsigned char port;                   /* Port number.  */
  unsigned char cb;                     /* Control/flag byte.  */
  unsigned char type;                   /* Type of message.  */
  struct ec_addr addr;
  unsigned long cookie;
};

#define ECTYPE_PACKET_RECEIVED          0       /* Packet received */
#define ECTYPE_TRANSMIT_STATUS          0x10    /* Transmit completed, 
                                                   low nibble holds status */

#define ECTYPE_TRANSMIT_OK              1
#define ECTYPE_TRANSMIT_NOT_LISTENING   2
#define ECTYPE_TRANSMIT_NET_ERROR       3
#define ECTYPE_TRANSMIT_NO_CLOCK        4
#define ECTYPE_TRANSMIT_LINE_JAMMED     5
#define ECTYPE_TRANSMIT_NOT_PRESENT     6

#ifdef __KERNEL__

#define EC_HLEN                         6

/* This is what an Econet frame looks like on the wire. */
struct ec_framehdr 
{
  unsigned char dst_stn;
  unsigned char dst_net;
  unsigned char src_stn;
  unsigned char src_net;
  unsigned char cb;
  unsigned char port;
};

struct econet_sock {
  /* struct sock has to be the first member of econet_sock */
  struct sock   sk;
  unsigned char cb;
  unsigned char port;
  unsigned char station;
  unsigned char net;
  unsigned short num;
};

static inline struct econet_sock *ec_sk(const struct sock *sk)
{
        return (struct econet_sock *)sk;
}

struct ec_device
{
  unsigned char station, net;           /* Econet protocol address */
};

#endif

#endif