/* $NetBSD: crl.h,v 1.3 2025/03/31 19:22:09 andvar Exp $ */ /* * @(#)crl.h 7.1 (Berkeley) 6/5/86 */ /**************************************************************** * * * Licensed from Digital Equipment Corporation * * Copyright (c) * * Digital Equipment Corporation * * Maynard, Massachusetts * * 1985, 1986 * * All rights reserved. * * * * The Information in this software is subject to change * * without notice and should not be construed as a commitment * * by Digital Equipment Corporation. Digital makes no * * representations about the suitability of this software for * * any purpose. It is supplied "As Is" without expressed or * * implied warranty. * * * * If the Regents of the University of California or its * * licensees modify the software in a manner creating * * derivative copyright rights, appropriate copyright * * legends may be placed on the derivative work in addition * * to that set forth above. * ****************************************************************/ /* * Console RL02 status of current transfer (read only) */ #define CRL_S_XCMPLT 1 /* transaction complete */ #define CRL_S_XCONT 2 /* continue transaction */ #define CRL_S_ABORT 3 /* transaction abort */ #define CRL_S_RETSTS 4 /* return device status */ #define CRL_S_HNDSHK 0x80 /* handshake err during transaction */ #define CRL_S_HWERR 0x81 /* hardware err during transaction */ /* * Console RL02 function codes */ #define CRL_F_NOOP 0 /* No operation */ #define CRL_F_RSTSTS 2 /* reset and return device status */ #define CRL_F_ABORT 3 /* abort transfer */ #define CRL_F_RETSTS 4 /* read device status */ #define CRL_F_WRITE 5 /* write block data */ #define CRL_F_READ 6 /* read block data */ /* * Console sectoring information. * The console understands the rl02 as having 512 byte sectors. */ #define CRLBYSEC 512 /* bytes/sector */ #define MAXSEC 20480 /* sectors/rl02 */ /* * STXCS bit definitions */ #define STXCS_RDY 0x00000080 /* ready bit */ #define STXCS_IE 0x00000040 /* interrupt enable */ #define CRLERRS 5 /* number of retries before quitting */ /* * The state byte is used to retain exclusivity, * and contains the busy flag. */ #define CRL_IDLE 0 #define CRL_OPEN 1 #define CRL_BUSY 2 #define CRLDS_BITS \ "\20\20WDE\17CHE\16WL\15SKTO\14SPE\13WGE\12VC\11DSE\ \10DT\7HS\6CO\5HO\4BH\3STC\2STB\1STA" #define CRLCS_BITS \ "\20\20CE\17DE\16NXM\15DLT\14DCRC\13OPI\1DRDY"
