/* 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