linux/include/linux/cycx_x25.h
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   1#ifndef _CYCX_X25_H
   2#define _CYCX_X25_H
   3/*
   4* cycx_x25.h    Cyclom X.25 firmware API definitions.
   5*
   6* Author:       Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   7*
   8* Copyright:    (c) 1998-2003 Arnaldo Carvalho de Melo
   9*
  10* Based on sdla_x25.h by Gene Kozin <74604.152@compuserve.com>
  11*
  12*               This program is free software; you can redistribute it and/or
  13*               modify it under the terms of the GNU General Public License
  14*               as published by the Free Software Foundation; either version
  15*               2 of the License, or (at your option) any later version.
  16* ============================================================================
  17* 2000/04/02    acme            dprintk and cycx_debug
  18* 1999/01/03    acme            judicious use of data types
  19* 1999/01/02    acme            #define X25_ACK_N3      0x4411
  20* 1998/12/28    acme            cleanup: lot'o'things removed
  21*                                        commands listed,
  22*                                        TX25Cmd & TX25Config structs
  23*                                        typedef'ed
  24*/
  25#ifndef PACKED
  26#define PACKED __attribute__((packed))
  27#endif 
  28
  29/* X.25 shared memory layout. */
  30#define X25_MBOX_OFFS   0x300   /* general mailbox block */
  31#define X25_RXMBOX_OFFS 0x340   /* receive mailbox */
  32
  33/* Debug */
  34#define dprintk(level, format, a...) if (cycx_debug >= level) printk(format, ##a)
  35
  36extern unsigned int cycx_debug;
  37
  38/* Data Structures */
  39/* X.25 Command Block. */
  40struct cycx_x25_cmd {
  41        u16 command;
  42        u16 link;       /* values: 0 or 1 */
  43        u16 len;        /* values: 0 thru 0x205 (517) */
  44        u32 buf;
  45} PACKED;
  46
  47/* Defines for the 'command' field. */
  48#define X25_CONNECT_REQUEST             0x4401
  49#define X25_CONNECT_RESPONSE            0x4402
  50#define X25_DISCONNECT_REQUEST          0x4403
  51#define X25_DISCONNECT_RESPONSE         0x4404
  52#define X25_DATA_REQUEST                0x4405
  53#define X25_ACK_TO_VC                   0x4406
  54#define X25_INTERRUPT_RESPONSE          0x4407
  55#define X25_CONFIG                      0x4408
  56#define X25_CONNECT_INDICATION          0x4409
  57#define X25_CONNECT_CONFIRM             0x440A
  58#define X25_DISCONNECT_INDICATION       0x440B
  59#define X25_DISCONNECT_CONFIRM          0x440C
  60#define X25_DATA_INDICATION             0x440E
  61#define X25_INTERRUPT_INDICATION        0x440F
  62#define X25_ACK_FROM_VC                 0x4410
  63#define X25_ACK_N3                      0x4411
  64#define X25_CONNECT_COLLISION           0x4413
  65#define X25_N3WIN                       0x4414
  66#define X25_LINE_ON                     0x4415
  67#define X25_LINE_OFF                    0x4416
  68#define X25_RESET_REQUEST               0x4417
  69#define X25_LOG                         0x4500
  70#define X25_STATISTIC                   0x4600
  71#define X25_TRACE                       0x4700
  72#define X25_N2TRACEXC                   0x4702
  73#define X25_N3TRACEXC                   0x4703
  74
  75/**
  76 *      struct cycx_x25_config - cyclom2x x25 firmware configuration
  77 *      @link - link number
  78 *      @speed - line speed
  79 *      @clock - internal/external
  80 *      @n2 - # of level 2 retransm.(values: 1 thru FF)
  81 *      @n2win - level 2 window (values: 1 thru 7)
  82 *      @n3win - level 3 window (values: 1 thru 7)
  83 *      @nvc - # of logical channels (values: 1 thru 64)
  84 *      @pktlen - level 3 packet length - log base 2 of size
  85 *      @locaddr - my address
  86 *      @remaddr - remote address
  87 *      @t1 - time, in seconds
  88 *      @t2 - time, in seconds
  89 *      @t21 - time, in seconds
  90 *      @npvc - # of permanent virt. circuits (1 thru nvc)
  91 *      @t23 - time, in seconds
  92 *      @flags - see dosx25.doc, in portuguese, for details
  93 */
  94struct cycx_x25_config {
  95        u8  link;
  96        u8  speed;
  97        u8  clock;
  98        u8  n2;
  99        u8  n2win;
 100        u8  n3win;
 101        u8  nvc;
 102        u8  pktlen;
 103        u8  locaddr;
 104        u8  remaddr;
 105        u16 t1;
 106        u16 t2;
 107        u8  t21;
 108        u8  npvc;
 109        u8  t23;
 110        u8  flags;
 111} PACKED;
 112
 113struct cycx_x25_stats {
 114        u16 rx_crc_errors;
 115        u16 rx_over_errors;
 116        u16 n2_tx_frames;
 117        u16 n2_rx_frames;
 118        u16 tx_timeouts;
 119        u16 rx_timeouts;
 120        u16 n3_tx_packets;
 121        u16 n3_rx_packets;
 122        u16 tx_aborts;
 123        u16 rx_aborts;
 124} PACKED;
 125#endif  /* _CYCX_X25_H */
 126
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