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1.1 root 1: /*-
2: * Copyright (c) 1991 The 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: * @(#)tmscpreg.h 7.2 (Berkeley) 5/9/91
34: */
35:
36: /* @(#)tmscpreg.h 1.1 11/2/84 84/09/25 */
37:
38: /****************************************************************
39: * *
40: * Licensed from Digital Equipment Corporation *
41: * Copyright (c) *
42: * Digital Equipment Corporation *
43: * Maynard, Massachusetts *
44: * 1985, 1986 *
45: * All rights reserved. *
46: * *
47: * The Information in this software is subject to change *
48: * without notice and should not be construed as a commitment *
49: * by Digital Equipment Corporation. Digital makes no *
50: * representations about the suitability of this software for *
51: * any purpose. It is supplied "As Is" without expressed or *
52: * implied warranty. *
53: * *
54: * If the Regents of the University of California or its *
55: * licensees modify the software in a manner creating *
56: * diriviative copyright rights, appropriate copyright *
57: * legends may be placed on the drivative work in addition *
58: * to that set forth above. *
59: * *
60: ****************************************************************/
61: /*
62: * TMSCP registers and structures
63: */
64:
65: struct tmscpdevice {
66: short tmscpip; /* initialization and polling */
67: short tmscpsa; /* status and address */
68: };
69:
70: #define TMSCP_ERR 0100000 /* error bit */
71: #define TMSCP_STEP4 0040000 /* step 4 has started */
72: #define TMSCP_STEP3 0020000 /* step 3 has started */
73: #define TMSCP_STEP2 0010000 /* step 2 has started */
74: #define TMSCP_STEP1 0004000 /* step 1 has started */
75: #define TMSCP_NV 0002000 /* no host settable interrupt vector */
76: #define TMSCP_QB 0001000 /* controller supports Q22 bus */
77: #define TMSCP_DI 0000400 /* controller implements diagnostics */
78: #define TMSCP_OD 0000200 /* port allows odd host addr's in the buffer descriptor */
79: #define TMSCP_IE 0000200 /* interrupt enable */
80: #define TMSCP_MP 0000100 /* port supports address mapping */
81: #define TMSCP_LF 0000002 /* host requests last fail response packet */
82: #define TMSCP_PI 0000001 /* host requests adapter purge interrupts */
83: #define TMSCP_GO 0000001 /* start operation, after init */
84:
85:
86: /*
87: * TMSCP Communications Area
88: */
89:
90: struct tmscpca {
91: short ca_xxx1; /* unused */
92: char ca_xxx2; /* unused */
93: char ca_bdp; /* BDP to purge */
94: short ca_cmdint; /* command queue transition interrupt flag */
95: short ca_rspint; /* response queue transition interrupt flag */
96: long ca_rspdsc[NRSP];/* response descriptors */
97: long ca_cmddsc[NCMD];/* command descriptors */
98: };
99:
100: #define ca_ringbase ca_rspdsc[0]
101:
102: #define TMSCP_OWN 0x80000000 /* port owns this descriptor (else host
103: owns it) */
104: #define TMSCP_INT 0x40000000 /* allow interrupt on ring transition */
105:
106: #define TMSCP_MAP 0x80000000 /* modifier for mapped buffer descriptors */
107:
108: /*
109: * TMSCP packet info (same as MSCP)
110: */
111: struct mscp_header {
112: short tmscp_msglen; /* length of MSCP packet */
113: char tmscp_credits; /* low 4 bits: credits, high 4 bits: msgtype */
114: char tmscp_vcid; /* virtual circuit id (connection id) */
115: };
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