include/linux/cycx_x25.h

   1 /*
   2 * cycx_x25.h    Cyclom X.25 firmware API definitions.
   3 *
   4 * Author:       Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   5 *
   6 * Copyright:    (c) 1998-2000 Arnaldo Carvalho de Melo
   7 *
   8 * Based on sdla_x25.h by Gene Kozin <74604.152@compuserve.com>
   9 *
  10 *               This program is free software; you can redistribute it and/or
  11 *               modify it under the terms of the GNU General Public License
  12 *               as published by the Free Software Foundation; either version
  13 *               2 of the License, or (at your option) any later version.
  14 * ============================================================================
  15 * 2000/04/02    acme            dprintk and cycx_debug
  16 * 1999/01/03    acme            judicious use of data types
  17 * 1999/01/02    acme            #define X25_ACK_N3      0x4411
  18 * 1998/12/28    acme            cleanup: lot'o'things removed
  19 *                                        commands listed,
  20 *                                        TX25Cmd & TX25Config structs
  21 *                                        typedef'ed
  22 */
  23 #ifndef _CYCX_X25_H
  24 #define _CYCX_X25_H
  25
  26 #ifndef PACKED
  27 #define PACKED __attribute__((packed))
  28 #endif
  29
  30 /* X.25 shared memory layout. */
  31 #define X25_MBOX_OFFS   0x300   /* general mailbox block */
  32 #define X25_RXMBOX_OFFS 0x340   /* receive mailbox */
  33
  34 /* Debug */
  35 #define dprintk(level, format, a...) if (cycx_debug >= level) printk(format, ##a)
  36
  37 extern unsigned int cycx_debug;
  38
  39 /* Data Structures */
  40 /* X.25 Command Block. */
  41 typedef struct X25Cmd
  42 {
  43         u16 command PACKED;
  44         u16 link    PACKED; /* values: 0 or 1 */
  45         u16 len     PACKED; /* values: 0 thru 0x205 (517) */
  46         u32 buf     PACKED;
  47 } TX25Cmd;
  48
  49 /* Defines for the 'command' field. */
  50 #define X25_CONNECT_REQUEST             0x4401
  51 #define X25_CONNECT_RESPONSE            0x4402
  52 #define X25_DISCONNECT_REQUEST          0x4403
  53 #define X25_DISCONNECT_RESPONSE         0x4404
  54 #define X25_DATA_REQUEST                0x4405
  55 #define X25_ACK_TO_VC                   0x4406
  56 #define X25_INTERRUPT_RESPONSE          0x4407
  57 #define X25_CONFIG                      0x4408
  58 #define X25_CONNECT_INDICATION          0x4409
  59 #define X25_CONNECT_CONFIRM             0x440A
  60 #define X25_DISCONNECT_INDICATION       0x440B
  61 #define X25_DISCONNECT_CONFIRM          0x440C
  62 #define X25_DATA_INDICATION             0x440E
  63 #define X25_INTERRUPT_INDICATION        0x440F
  64 #define X25_ACK_FROM_VC                 0x4410
  65 #define X25_ACK_N3                      0x4411
  66 #define X25_CONNECT_COLLISION           0x4413
  67 #define X25_N3WIN                       0x4414
  68 #define X25_LINE_ON                     0x4415
  69 #define X25_LINE_OFF                    0x4416
  70 #define X25_RESET_REQUEST               0x4417
  71 #define X25_LOG                         0x4500
  72 #define X25_STATISTIC                   0x4600
  73 #define X25_TRACE                       0x4700
  74 #define X25_N2TRACEXC                   0x4702
  75 #define X25_N3TRACEXC                   0x4703
  76
  77 typedef struct X25Config {
  78         u8  link        PACKED; /* link number */
  79         u8  speed       PACKED; /* line speed */
  80         u8  clock       PACKED; /* internal/external */
  81         u8  n2          PACKED; /* # of level 2 retransm.(values: 1 thru FF) */
  82         u8  n2win       PACKED; /* level 2 window (values: 1 thru 7) */
  83         u8  n3win       PACKED; /* level 3 window (values: 1 thru 7) */
  84         u8  nvc         PACKED; /* # of logical channels (values: 1 thru 64) */
  85         u8  pktlen      PACKED; /* level 3 packet lenght - log base 2 of size */
  86         u8  locaddr     PACKED; /* my address */
  87         u8  remaddr     PACKED; /* remote address */
  88         u16 t1          PACKED; /* time, in seconds */
  89         u16 t2          PACKED; /* time, in seconds */
  90         u8  t21         PACKED; /* time, in seconds */
  91         u8  npvc        PACKED; /* # of permanent virt. circuits (1 thru nvc) */
  92         u8  t23         PACKED; /* time, in seconds */
  93         u8  flags       PACKED; /* see dosx25.doc, in portuguese, for details */
  94 } TX25Config;
  95
  96 typedef struct X25Stats {
  97         u16 rx_crc_errors       PACKED;
  98         u16 rx_over_errors      PACKED;
  99         u16 n2_tx_frames        PACKED;
 100         u16 n2_rx_frames        PACKED;
 101         u16 tx_timeouts         PACKED;
 102         u16 rx_timeouts         PACKED;
 103         u16 n3_tx_packets       PACKED;
 104         u16 n3_rx_packets       PACKED;
 105         u16 tx_aborts           PACKED;
 106         u16 rx_aborts           PACKED;
 107 } TX25Stats;
 108 #endif  /* _CYCX_X25_H */