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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
  36 extern unsigned int cycx_debug;
  37
  38 /* Data Structures */
  39 /* X.25 Command Block. */
  40 struct cycx_x25_cmd {
  41         u16 command PACKED;
  42         u16 link    PACKED; /* values: 0 or 1 */
  43         u16 len     PACKED; /* values: 0 thru 0x205 (517) */
  44         u32 buf     PACKED;
  45 };
  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 lenght - 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  */
  94 struct cycx_x25_config {
  95         u8  link        PACKED;
  96         u8  speed       PACKED;
  97         u8  clock       PACKED;
  98         u8  n2          PACKED;
  99         u8  n2win       PACKED;
 100         u8  n3win       PACKED;
 101         u8  nvc         PACKED;
 102         u8  pktlen      PACKED;
 103         u8  locaddr     PACKED;
 104         u8  remaddr     PACKED;
 105         u16 t1          PACKED;
 106         u16 t2          PACKED;
 107         u8  t21         PACKED;
 108         u8  npvc        PACKED;
 109         u8  t23         PACKED;
 110         u8  flags       PACKED;
 111 };
 112
 113 struct cycx_x25_stats {
 114         u16 rx_crc_errors       PACKED;
 115         u16 rx_over_errors      PACKED;
 116         u16 n2_tx_frames        PACKED;
 117         u16 n2_rx_frames        PACKED;
 118         u16 tx_timeouts         PACKED;
 119         u16 rx_timeouts         PACKED;
 120         u16 n3_tx_packets       PACKED;
 121         u16 n3_rx_packets       PACKED;
 122         u16 tx_aborts           PACKED;
 123         u16 rx_aborts           PACKED;
 124 };
 125 #endif  /* _CYCX_X25_H */