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1.1 root 1: /*
2: * Copyright (c) 1988 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
33: * @(#)if_dmv.h 7.4 (Berkeley) 6/28/90
34: */
35:
36: /*
37: * DMV-11 Driver
38: *
39: * Qbus Sync DDCMP interface - DMV operated in full duplex, point to point mode
40: *
41: * Written by Bob Kridle of Mt Xinu
42: * starting from if_dmc.h version 6.4 dated 6/8/85
43: */
44:
45: struct dmvdevice {
46: union {
47: u_char xbsel[2];
48: u_short xwsel;
49: } xw0;
50: union {
51: u_char xbsel[2];
52: u_short xwsel;
53: } xw1;
54: union {
55: u_char xbsel[2];
56: u_short xwsel;
57: } xw2;
58: union {
59: u_char xbsel[2];
60: u_short xwsel;
61: } xw3;
62: union {
63: u_char xbsel[2];
64: u_short xwsel;
65: } xw4;
66: };
67:
68: #define bsel0 xw0.xbsel[0]
69: #define bsel1 xw0.xbsel[1]
70: #define bsel2 xw1.xbsel[0]
71: #define bsel3 xw1.xbsel[1]
72: #define bsel4 xw2.xbsel[0]
73: #define bsel5 xw2.xbsel[1]
74: #define bsel6 xw3.xbsel[0]
75: #define bsel7 xw3.xbsel[1]
76: #define bsel10 xw4.xbsel[0]
77: #define bsel11 xw4.xbsel[1]
78:
79: #define wsel0 xw0.xwsel
80: #define wsel2 xw1.xwsel
81: #define wsel4 xw2.xwsel
82: #define wsel6 xw3.xwsel
83: #define wsel10 xw4.xwsel
84:
85: /*
86: * dmv software packet encapsulation. This allows the dmv
87: * link to be multiplexed among several protocols.
88: * The first eight bytes of the dmc header are garbage,
89: * since on a vax the uba has been known to mung these
90: * bytes. The next two bytes encapsulate packet type.
91: */
92: struct dmv_header {
93: short dmv_type; /* encapsulate packet type */
94: };
95:
96: /* packet types */
97: #define DMV_IPTYPE 1
98: #define DMV_TRAILER 2
99: #define DMV_NTRAILER 16
100:
101: /*
102: * DMVMTU includes space for data (1024) +
103: * protocol header (256) + trailer descriptor (4).
104: * The software link encapsulation header (dmv_header)
105: * is handled separately.
106: */
107: #define DMVMTU 1284
108:
109: #define RDYSCAN 16 /* loop delay for RDYI after RQI */
110:
111: /* defines for bsel0 */
112:
113: #define DMV_IEI 0x01 /* interrupt enable, input */
114: #define DMV_IEO 0x10 /* interrupt enable, output */
115: #define DMV_RQI 0x80 /* request input */
116: #define DMV0BITS "\10\8RQI\5IEO\1IEI"
117:
118: /* defines for bsel1 */
119:
120: #define DMV_MCLR 0x40 /* master clear */
121: #define DMV_RUN 0x80 /* run */
122: #define DMV1BITS "\10\8RUN\7MCLR"
123:
124: /* defines for bsel2 */
125:
126: #define DMV_CMD 0x07 /* command/response type field */
127:
128:
129: /* input commands */
130:
131: #define DMV_BACCR 0x00 /* buffer address, char. count - rec */
132: #define DMV_BACCX 0x04 /* buffer address, char. count - xmit */
133: #define DMV_MDEFI 0x02 /* mode definition input */
134: #define DMV_CNTRLI 0x01 /* control input */
135:
136: /* response identifiers */
137:
138: #define DMV_CNTRLO 0x01 /* control output */
139: #define DMV_MDEFO 0x02 /* information output */
140: #define DMV_BDRUS 0x00 /* buffer definition - rec. used */
141: #define DMV_BDRUNUS 0x03 /* buffer disposition - rec. unused */
142: #define DMV_BDXSA 0x04 /* buffer dispostiion - sent & ack */
143: #define DMV_BDXSN 0x06 /* buffer dispostiion - sent & not ack*/
144: #define DMV_BDXNS 0x07 /* buffer dispostiion - not sent */
145:
146: #define DMV_22BIT 0x08 /* buffer address in 22 bit format */
147: #define DMV_RDI 0x10 /* ready for input */
148: #define DMV_RDO 0x80 /* ready for output */
149: #define DMV2BITS "\10\8RDO\5RDI"
150:
151: /* defines for CNTRLI mode */
152:
153: #define DMV_RDTSS 0x20 /* read tributary status slot */
154: #define DMV_RDCTSS 0x40 /* read/clear tributary status slot */
155: #define DMV_WRTSS 0x80 /* write tributary status slot */
156: #define DMV_TRIBN 0x1f /* tributary number */
157: #define DMV_RQKEY 0x1f /* control command request key */
158: #define DMV_ECBP 0x100 /* establish common buffer pool */
159:
160: /* relevant command request keys */
161:
162: #define DMV_NOP 0x00 /* no-op */
163: #define DMV_ESTTRIB 0x01 /* establish tributary */
164: #define DMV_REQSUS 0x03 /* request start up state */
165: #define DMV_REQHS 0x05 /* request halt state */
166: #define DMV_WMC 0x10 /* write modem control */
167: #define DMV_RMC 0x11 /* read modem control */
168:
169: /* some interesting CNTRLO codes
170: *
171: * use the manual if yours isn't here!!
172: */
173:
174: #define DMV_RTE 0002 /* receive threshold error */
175: #define DMV_TTE 0004 /* xmit threshold error */
176: #define DMV_STE 0006 /* select threshold error */
177: #define DMV_ORUN 0024 /* other end enters run state */
178: #define DMV_NXM 0302 /* non-existant memory */
179: #define DMV_MODD 0304 /* modem disconnected */
180: #define DMV_QOVF 0306 /* response queue overflow */
181: #define DMV_CXRL 0310 /* modem cxr lost */
182:
183: #define DMV_EEC 0377 /* CNTRLO error code mask */
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