projects / unix-history / blame
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|---|---|---|
| af359dea C |
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 | */ | |
| 88ac9a6a MK |
35 | |
| 36 | /* @(#)tmscpreg.h 1.1 11/2/84 84/09/25 */ | |
| 37 | ||
| 66cf8c22 KD |
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 | ****************************************************************/ | |
| 88ac9a6a MK |
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 */ | |
| e21477ad | 78 | #define TMSCP_OD 0000200 /* port allows odd host addr's in the buffer descriptor */ |
| 88ac9a6a MK |
79 | #define TMSCP_IE 0000200 /* interrupt enable */ |
| 80 | #define TMSCP_MP 0000100 /* port supports address mapping */ | |
| e21477ad MK |
81 | #define TMSCP_LF 0000002 /* host requests last fail response packet */ |
| 82 | #define TMSCP_PI 0000001 /* host requests adapter purge interrupts */ | |
| 88ac9a6a MK |
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) */ | |
| e21477ad | 104 | #define TMSCP_INT 0x40000000 /* allow interrupt on ring transition */ |
| 88ac9a6a | 105 | |
| e21477ad | 106 | #define TMSCP_MAP 0x80000000 /* modifier for mapped buffer descriptors */ |
| 88ac9a6a MK |
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 | }; |