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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 are permitted
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.
16: *
17: * @(#)if_dmv.h 7.3 (Berkeley) 6/29/88
18: */
19:
20: /*
21: * DMV-11 Driver
22: *
23: * Qbus Sync DDCMP interface - DMV operated in full duplex, point to point mode
24: *
25: * Written by Bob Kridle of Mt Xinu
26: * starting from if_dmc.h version 6.4 dated 6/8/85
27: */
28:
29: struct 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: */
76: struct dmv_header {
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 */
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