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 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 */
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