changes for var. length sockaddrs; new routing; mv common ether input
[unix-history] / usr / src / sys / vax / if / if_dmv.h
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a39bb6ad 1/*
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2 * Copyright (c) 1988 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms are permitted
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6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * advertising materials, and other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
2aba78b9 16 *
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17 * @(#)if_dmv.h 7.3 (Berkeley) %G%
18 */
19
20/*
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21 * DMV-11 Driver
22 *
23 * Qbus Sync DDCMP interface - DMV operated in full duplex, point to point mode
24 *
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25 * Written by Bob Kridle of Mt Xinu
26 * starting from if_dmc.h version 6.4 dated 6/8/85
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27 */
28
29struct dmvdevice {
30 union {
31 u_char xbsel[2];
32 u_short xwsel;
33 } xw0;
34 union {
35 u_char xbsel[2];
36 u_short xwsel;
37 } xw1;
38 union {
39 u_char xbsel[2];
40 u_short xwsel;
41 } xw2;
42 union {
43 u_char xbsel[2];
44 u_short xwsel;
45 } xw3;
46 union {
47 u_char xbsel[2];
48 u_short xwsel;
49 } xw4;
50};
51
52#define bsel0 xw0.xbsel[0]
53#define bsel1 xw0.xbsel[1]
54#define bsel2 xw1.xbsel[0]
55#define bsel3 xw1.xbsel[1]
56#define bsel4 xw2.xbsel[0]
57#define bsel5 xw2.xbsel[1]
58#define bsel6 xw3.xbsel[0]
59#define bsel7 xw3.xbsel[1]
60#define bsel10 xw4.xbsel[0]
61#define bsel11 xw4.xbsel[1]
62
63#define wsel0 xw0.xwsel
64#define wsel2 xw1.xwsel
65#define wsel4 xw2.xwsel
66#define wsel6 xw3.xwsel
67#define wsel10 xw4.xwsel
68
69/*
70 * dmv software packet encapsulation. This allows the dmv
71 * link to be multiplexed among several protocols.
72 * The first eight bytes of the dmc header are garbage,
73 * since on a vax the uba has been known to mung these
74 * bytes. The next two bytes encapsulate packet type.
75 */
76struct dmv_header {
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77 short dmv_type; /* encapsulate packet type */
78};
79
80/* packet types */
81#define DMV_IPTYPE 1
82#define DMV_TRAILER 2
83#define DMV_NTRAILER 16
84
85/*
86 * DMVMTU includes space for data (1024) +
87 * protocol header (256) + trailer descriptor (4).
88 * The software link encapsulation header (dmv_header)
89 * is handled separately.
90 */
91#define DMVMTU 1284
92
93#define RDYSCAN 16 /* loop delay for RDYI after RQI */
94
95 /* defines for bsel0 */
96
97#define DMV_IEI 0x01 /* interrupt enable, input */
98#define DMV_IEO 0x10 /* interrupt enable, output */
99#define DMV_RQI 0x80 /* request input */
100#define DMV0BITS "\10\8RQI\5IEO\1IEI"
101
102 /* defines for bsel1 */
103
104#define DMV_MCLR 0x40 /* master clear */
105#define DMV_RUN 0x80 /* run */
106#define DMV1BITS "\10\8RUN\7MCLR"
107
108 /* defines for bsel2 */
109
110#define DMV_CMD 0x07 /* command/response type field */
111
112
113 /* input commands */
114
115#define DMV_BACCR 0x00 /* buffer address, char. count - rec */
116#define DMV_BACCX 0x04 /* buffer address, char. count - xmit */
117#define DMV_MDEFI 0x02 /* mode definition input */
118#define DMV_CNTRLI 0x01 /* control input */
119
120 /* response identifiers */
121
122#define DMV_CNTRLO 0x01 /* control output */
123#define DMV_MDEFO 0x02 /* information output */
124#define DMV_BDRUS 0x00 /* buffer definition - rec. used */
125#define DMV_BDRUNUS 0x03 /* buffer disposition - rec. unused */
126#define DMV_BDXSA 0x04 /* buffer dispostiion - sent & ack */
127#define DMV_BDXSN 0x06 /* buffer dispostiion - sent & not ack*/
128#define DMV_BDXNS 0x07 /* buffer dispostiion - not sent */
129
130#define DMV_22BIT 0x08 /* buffer address in 22 bit format */
131#define DMV_RDI 0x10 /* ready for input */
132#define DMV_RDO 0x80 /* ready for output */
133#define DMV2BITS "\10\8RDO\5RDI"
134
135 /* defines for CNTRLI mode */
136
137#define DMV_RDTSS 0x20 /* read tributary status slot */
138#define DMV_RDCTSS 0x40 /* read/clear tributary status slot */
139#define DMV_WRTSS 0x80 /* write tributary status slot */
140#define DMV_TRIBN 0x1f /* tributary number */
141#define DMV_RQKEY 0x1f /* control command request key */
142#define DMV_ECBP 0x100 /* establish common buffer pool */
143
144 /* relevant command request keys */
145
146#define DMV_NOP 0x00 /* no-op */
147#define DMV_ESTTRIB 0x01 /* establish tributary */
148#define DMV_REQSUS 0x03 /* request start up state */
149#define DMV_REQHS 0x05 /* request halt state */
150#define DMV_WMC 0x10 /* write modem control */
151#define DMV_RMC 0x11 /* read modem control */
152
153 /* some interesting CNTRLO codes
154 *
155 * use the manual if yours isn't here!!
156 */
157
158#define DMV_RTE 0002 /* receive threshold error */
159#define DMV_TTE 0004 /* xmit threshold error */
160#define DMV_STE 0006 /* select threshold error */
161#define DMV_ORUN 0024 /* other end enters run state */
162#define DMV_NXM 0302 /* non-existant memory */
163#define DMV_MODD 0304 /* modem disconnected */
164#define DMV_QOVF 0306 /* response queue overflow */
165#define DMV_CXRL 0310 /* modem cxr lost */
166
167#define DMV_EEC 0377 /* CNTRLO error code mask */