1 /* $NetBSD: crl.h,v 1.2 1999/04/12 20:57:52 pk Exp $ */ 2 /* 3 * @(#)crl.h 7.1 (Berkeley) 6/5/86 4 */ 5 6 /**************************************************************** 7 * * 8 * Licensed from Digital Equipment Corporation * 9 * Copyright (c) * 10 * Digital Equipment Corporation * 11 * Maynard, Massachusetts * 12 * 1985, 1986 * 13 * All rights reserved. * 14 * * 15 * The Information in this software is subject to change * 16 * without notice and should not be construed as a commitment * 17 * by Digital Equipment Corporation. Digital makes no * 18 * representations about the suitability of this software for * 19 * any purpose. It is supplied "As Is" without expressed or * 20 * implied warranty. * 21 * * 22 * If the Regents of the University of California or its * 23 * licensees modify the software in a manner creating * 24 * derivative copyright rights, appropriate copyright * 25 * legends may be placed on the derivative work in addition * 26 * to that set forth above. * 27 ****************************************************************/ 28 29 /* 30 * Console RL02 status of current transfer (read only) 31 */ 32 #define CRL_S_XCMPLT 1 /* transaction complete */ 33 #define CRL_S_XCONT 2 /* continue transaction */ 34 #define CRL_S_ABORT 3 /* transation abort */ 35 #define CRL_S_RETSTS 4 /* return device status */ 36 #define CRL_S_HNDSHK 0x80 /* handshake err during transaction */ 37 #define CRL_S_HWERR 0x81 /* hardware err during transaction */ 38 39 /* 40 * Console RL02 function codes 41 */ 42 #define CRL_F_NOOP 0 /* No operation */ 43 #define CRL_F_RSTSTS 2 /* reset and return device status */ 44 #define CRL_F_ABORT 3 /* abort transfer */ 45 #define CRL_F_RETSTS 4 /* read device status */ 46 #define CRL_F_WRITE 5 /* write block data */ 47 #define CRL_F_READ 6 /* read block data */ 48 49 /* 50 * Console sectoring information. 51 * The console understands the rl02 as having 512 byte sectors. 52 */ 53 #define CRLBYSEC 512 /* bytes/sector */ 54 #define MAXSEC 20480 /* sectors/rl02 */ 55 56 /* 57 * STXCS bit definitions 58 */ 59 #define STXCS_RDY 0x00000080 /* ready bit */ 60 #define STXCS_IE 0x00000040 /* interrupt enable */ 61 62 #define CRLERRS 5 /* number of retries before quitting */ 63 64 /* 65 * The state byte is used to retain exclusivity, 66 * and contains the busy flag. 67 */ 68 #define CRL_IDLE 0 69 #define CRL_OPEN 1 70 #define CRL_BUSY 2 71 72 73 #define CRLDS_BITS \ 74 "\20\20WDE\17CHE\16WL\15SKTO\14SPE\13WGE\12VC\11DSE\ 75 \10DT\7HS\6CO\5HO\4BH\3STC\2STB\1STA" 76 77 #define CRLCS_BITS \ 78 "\20\20CE\17DE\16NXM\15DLT\14DCRC\13OPI\1DRDY" 79