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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 <acme@conectiva.com.br>

*

* Copyright:    (c) 1998-2003 Arnaldo Carvalho de Melo

*

* Based on sdla_x25.h by Gene Kozin <74604.152@compuserve.com>

*

*               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 - cyclom2x x25 firmware configuration

 *      @link - link number

 *      @speed - line speed

 *      @clock - internal/external

 *      @n2 - # of level 2 retransm.(values: 1 thru FF)

 *      @n2win - level 2 window (values: 1 thru 7)

 *      @n3win - level 3 window (values: 1 thru 7)

 *      @nvc - # of logical channels (values: 1 thru 64)

 *      @pktlen - level 3 packet lenght - log base 2 of size

 *      @locaddr - my address

 *      @remaddr - remote address

 *      @t1 - time, in seconds

 *      @t2 - time, in seconds

 *      @t21 - time, in seconds

 *      @npvc - # of permanent virt. circuits (1 thru nvc)

 *      @t23 - time, in seconds

 *      @flags - see dosx25.doc, in portuguese, for details

 */

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 */