include/linux/if_ec.h

   1 /* Definitions for Econet sockets. */
   2
   3 #ifndef __LINUX_IF_EC
   4 #define __LINUX_IF_EC
   5
   6 /* User visible stuff. Glibc provides its own but libc5 folk will use these */
   7
   8 struct ec_addr {
   9   unsigned char station;                /* Station number.  */
  10   unsigned char net;                    /* Network number.  */
  11 };
  12
  13 struct sockaddr_ec {
  14   unsigned short sec_family;
  15   unsigned char port;                   /* Port number.  */
  16   unsigned char cb;                     /* Control/flag byte.  */
  17   unsigned char type;                   /* Type of message.  */
  18   struct ec_addr addr;
  19   unsigned long cookie;
  20 };
  21
  22 #define ECTYPE_PACKET_RECEIVED          0       /* Packet received */
  23 #define ECTYPE_TRANSMIT_STATUS          0x10    /* Transmit completed,
  24                                                    low nibble holds status */
  25
  26 #define ECTYPE_TRANSMIT_OK              1
  27 #define ECTYPE_TRANSMIT_NOT_LISTENING   2
  28 #define ECTYPE_TRANSMIT_NET_ERROR       3
  29 #define ECTYPE_TRANSMIT_NO_CLOCK        4
  30 #define ECTYPE_TRANSMIT_LINE_JAMMED     5
  31 #define ECTYPE_TRANSMIT_NOT_PRESENT     6
  32
  33 #ifdef __KERNEL__
  34
  35 #define EC_HLEN                         6
  36
  37 /* This is what an Econet frame looks like on the wire. */
  38 struct ec_framehdr {
  39   unsigned char dst_stn;
  40   unsigned char dst_net;
  41   unsigned char src_stn;
  42   unsigned char src_net;
  43   unsigned char cb;
  44   unsigned char port;
  45 };
  46
  47 struct econet_sock {
  48   /* struct sock has to be the first member of econet_sock */
  49   struct sock   sk;
  50   unsigned char cb;
  51   unsigned char port;
  52   unsigned char station;
  53   unsigned char net;
  54   unsigned short num;
  55 };
  56
  57 static inline struct econet_sock *ec_sk(const struct sock *sk)
  58 {
  59         return (struct econet_sock *)sk;
  60 }
  61
  62 struct ec_device {
  63   unsigned char station, net;           /* Econet protocol address */
  64 };
  65
  66 #endif
  67
  68 #endif