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| Commit | Line | Data |
|---|---|---|
| 0880b18e | 1 | /* @(#)if_ddnreg.h 7.1 (Berkeley) %G% */ |
| f0ecc930 MK |
2 | |
| 3 | ||
| 4 | /************************************************************************\ | |
| 5 | ||
| 6 | ________________________________________________________ | |
| 7 | / \ | |
| 8 | | AAA CCCCCCCCCCCCCC CCCCCCCCCCCCCC | | |
| 9 | | AAAAA CCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCC | | |
| 10 | | AAAAAAA CCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCC | | |
| 11 | | AAAA AAAA CCCC CCCC | | |
| 12 | | AAAA AAAA CCCC CCCC | | |
| 13 | | AAAA AAAA CCCC CCCC | | |
| 14 | | AAAA AAAA CCCC CCCC | | |
| 15 | | AAAA AAAAAAAAAAA CCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCC | | |
| 16 | | AAAA AAAAAAAAAAA CCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCC | | |
| 17 | | AAAA AAAAAAAAA CCCCCCCCCCCCCC CCCCCCCCCCCCCC | | |
| 18 | \________________________________________________________/ | |
| 19 | ||
| 20 | Copyright (c) 1985 by Advanced Computer Communications | |
| 21 | 720 Santa Barbara Street, Santa Barbara, California 93101 | |
| 22 | (805) 963-9431 | |
| 23 | ||
| 24 | This software may be duplicated and used on systems | |
| 25 | which are licensed to run U.C. Berkeley versions of | |
| 26 | the UNIX operating system. Any duplication of any | |
| 27 | part of this software must include a copy of ACC's | |
| 28 | copyright notice. | |
| 29 | ||
| 30 | ||
| 31 | File: | |
| 32 | if_ddnreg.h | |
| 33 | ||
| 34 | Author: | |
| 35 | Art Berggreen | |
| 36 | ||
| 37 | Project: | |
| 38 | 4.2 DDN X.25 network driver | |
| 39 | ||
| 40 | Function: | |
| 41 | This file contains definitions of the hardware | |
| 42 | interface of the ACP625 (IF-11/X25). | |
| 43 | ||
| 44 | Components: | |
| 45 | ||
| 46 | Revision History: | |
| 47 | 16-May-1985: V1.0 - First release. | |
| 48 | Art Berggreen. | |
| 49 | ||
| 50 | \************************************************************************/ | |
| 51 | \f | |
| 52 | ||
| 53 | /* if_ddnvar.h V1.0 5/16/85 */ | |
| 54 | ||
| 55 | /* | |
| 56 | * ACC IF-11/DDN-X25 interface | |
| 57 | */ | |
| 58 | ||
| 59 | struct ddnregs { /* device registers */ | |
| 60 | u_short csr; /* control and status register */ | |
| 61 | u_char iochn; /* logical channel */ | |
| 62 | u_char ioadx; /* address extension (A16,A17) */ | |
| 63 | u_short ioadl; /* buffer address (A0-A15) */ | |
| 64 | u_short iocnt; /* byte count */ | |
| 65 | u_char iofcn; /* UMC funciton code */ | |
| 66 | u_char iosbf; /* UMC subfunction code */ | |
| 67 | u_char ioini; /* comm regs valid flag */ | |
| 68 | u_char staack; /* interrupt acknowledge flag */ | |
| 69 | u_char ionmi; /* NMI routine active flag */ | |
| 70 | u_char xfrgnt; /* UMR transfer grant flag */ | |
| 71 | u_char stachn; /* interrupt channel number */ | |
| 72 | u_char statyp; /* interrupt type code */ | |
| 73 | u_char stacc; /* completion function code */ | |
| 74 | u_char stacs; /* completion subfunction code */ | |
| 75 | u_short stacnt; /* completion byte count */ | |
| 76 | }; | |
| 77 | ||
| 78 | #define iovect iochn | |
| 79 | ||
| 80 | /* defines for CSR */ | |
| 81 | ||
| 82 | #define DDN_UER 0100000 /* UMC error condition */ | |
| 83 | #define DDN_NXM 0040000 /* non-existent memory error */ | |
| 84 | #define DDN_PER 0020000 /* UNIBUS parity error */ | |
| 85 | #define DDN_ZRUN 0010000 /* Z80 running */ | |
| 86 | #define DDN_ZGO 0004000 /* Z80 not in wait state */ | |
| 87 | #define DDN_MBLK 0000200 /* memory swap state (0=main, 1=srv) */ | |
| 88 | #define DDN_SRV 0000100 /* select UMC service memory */ | |
| 89 | #define DDN_MAIN 0000040 /* select UMC main memory */ | |
| 90 | #define DDN_DMA 0000020 /* DMA enable */ | |
| 91 | #define DDN_WRT 0000010 /* DMA write enable */ | |
| 92 | #define DDN_IEN 0000004 /* interrupt enable */ | |
| 93 | #define DDN_RST 0000002 /* reset */ | |
| 94 | #define DDN_NMI 0000001 /* cause NMI */ | |
| 95 | ||
| 96 | #define DDN_BITS \ | |
| 97 | "\10\20UER\17NXM\16PER\15ZRUN\14ZGO\10MBLK\7SRV\6MAIN\5DMA\4WRT\3IEN\2RST\1NMI" | |
| 98 | ||
| 99 | /* start i/o function code definitions */ | |
| 100 | ||
| 101 | #define DDNWRT 0 /* write to if-11 */ | |
| 102 | #define DDNRDB 1 /* read from if-11 */ | |
| 103 | #define DDNSTR 2 /* stream flag */ | |
| 104 | #define DDNEOS (4|DDNSTR) /* end of stream flag */ | |
| 105 | #define DDNABT 8 /* abort flag */ | |
| 106 | #define DDNUMR 16 /* UMR protocol flag */ | |
| 107 | ||
| 108 | /* interrupt type definitions */ | |
| 109 | ||
| 110 | #define DDNSACK 0 /* start i/o ack */ | |
| 111 | #define DDNDONE 1 /* i/o completion */ | |
| 112 | #define DDNXREQ 2 /* UMR protocol transfer request */ | |
| 113 | ||
| 114 | /* i/o completion codes */ | |
| 115 | ||
| 116 | #define DDNIOCOK 0001 /* successful completion */ | |
| 117 | #define DDNIOCOKP 0002 /* successful completion, more data pending */ | |
| 118 | #define DDNIOCABT 0361 /* i/o aborted */ | |
| 119 | #define DDNIOCERR 0321 /* program error */ | |
| 120 | #define DDNIOCOVR 0363 /* overrun error */ | |
| 121 | #define DDNIOCUBE 0374 /* non-existant memory or unibus error */ | |
| 122 | ||
| 123 | /* UMR protocol transfer grant code definitions */ | |
| 124 | ||
| 125 | #define DDNXEVN 1 /* start with even address */ | |
| 126 | #define DDNXODD 2 /* start with odd address */ | |
| 127 | #define DDNNUMR 4 /* non-UMR transfer */ | |
| 128 | #define DDNXABT 8 /* abort transfer */ |