cycx_x25.h

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#ifndef _CYCX_X25_H
#define _CYCX_X25_H
/*
* cycx_x25.h    Cyclom X.25 firmware API definitions.
*
* Author:   Arnaldo Carvalho de Melo <[email protected]>
*
* Copyright:    (c) 1998-2003 Arnaldo Carvalho de Melo
*
* Based on sdla_x25.h by Gene Kozin <[email protected]>
*
*       This program is free software; you can redistribute it and/or
*       modify it under the terms of the GNU General Public License
*       as published by the Free Software Foundation; either version
*       2 of the License, or (at your option) any later version.
* ============================================================================
* 2000/04/02    acme        dprintk and cycx_debug
* 1999/01/03    acme        judicious use of data types
* 1999/01/02    acme        #define X25_ACK_N3  0x4411
* 1998/12/28    acme        cleanup: lot'o'things removed
*                    commands listed,
*                    TX25Cmd & TX25Config structs
*                    typedef'ed
*/
#ifndef PACKED
#define PACKED __attribute__((packed))
#endif 

/* X.25 shared memory layout. */
#define X25_MBOX_OFFS   0x300   /* general mailbox block */
#define X25_RXMBOX_OFFS 0x340   /* receive mailbox */

/* Debug */
#define dprintk(level, format, a...) if (cycx_debug >= level) printk(format, ##a)

extern unsigned int cycx_debug;

/* Data Structures */
/* X.25 Command Block. */
struct cycx_x25_cmd {
    u16 command;
    u16 link;   /* values: 0 or 1 */
    u16 len;    /* values: 0 thru 0x205 (517) */
    u32 buf;
} PACKED;

/* Defines for the 'command' field. */
#define X25_CONNECT_REQUEST             0x4401
#define X25_CONNECT_RESPONSE            0x4402
#define X25_DISCONNECT_REQUEST          0x4403
#define X25_DISCONNECT_RESPONSE         0x4404
#define X25_DATA_REQUEST                0x4405
#define X25_ACK_TO_VC           0x4406
#define X25_INTERRUPT_RESPONSE          0x4407
#define X25_CONFIG                      0x4408
#define X25_CONNECT_INDICATION          0x4409
#define X25_CONNECT_CONFIRM             0x440A
#define X25_DISCONNECT_INDICATION       0x440B
#define X25_DISCONNECT_CONFIRM          0x440C
#define X25_DATA_INDICATION             0x440E
#define X25_INTERRUPT_INDICATION        0x440F
#define X25_ACK_FROM_VC         0x4410
#define X25_ACK_N3          0x4411
#define X25_CONNECT_COLLISION           0x4413
#define X25_N3WIN                       0x4414
#define X25_LINE_ON                     0x4415
#define X25_LINE_OFF                    0x4416
#define X25_RESET_REQUEST               0x4417
#define X25_LOG                         0x4500
#define X25_STATISTIC                   0x4600
#define X25_TRACE                       0x4700
#define X25_N2TRACEXC                   0x4702
#define X25_N3TRACEXC                   0x4703

struct cycx_x25_config {
    u8  link;
    u8  speed;
    u8  clock;
    u8  n2;
    u8  n2win;
    u8  n3win;
    u8  nvc;
    u8  pktlen;
    u8  locaddr;
    u8  remaddr;
    u16 t1;
    u16 t2;
    u8  t21;
    u8  npvc;
    u8  t23;
    u8  flags;
} PACKED;

struct cycx_x25_stats {
    u16 rx_crc_errors;
    u16 rx_over_errors;
    u16 n2_tx_frames;
    u16 n2_rx_frames;
    u16 tx_timeouts;
    u16 rx_timeouts;
    u16 n3_tx_packets;
    u16 n3_rx_packets;
    u16 tx_aborts;
    u16 rx_aborts;
} PACKED;
#endif  /* _CYCX_X25_H */