/* $NetBSD: rlreg.h,v 1.5 2017/05/22 17:22:29 ragge Exp $ */ /* * Copyright (c) 2000 Ludd, University of Lule}, Sweden. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * RL11 registers. */ #define RL_CS 0 #define RL_BA 2 #define RL_DA 4 #define RL_MP 6 #define RL_BAE 8 /* Only on RLV12 */ /* * Bits in Control/Status register */ #define RLCS_DRDY 0000001 #define RLCS_IE 0000100 #define RLCS_CRDY 0000200 #define RLCS_DE 0040000 #define RLCS_ERR 0100000 #define RLCS_ERRMSK 0036000 /* Command to give to drive */ #define RLCS_NOOP 0000000 /* No operation */ #define RLCS_WCK 0000002 /* Write Check */ #define RLCS_GS 0000004 /* Get Status */ #define RLCS_SEEK 0000006 /* Seek */ #define RLCS_RHDR 0000010 /* Read Header */ #define RLCS_WD 0000012 /* Write data */ #define RLCS_RD 0000014 /* Read data */ #define RLCS_RDWO 0000016 /* Read data without hdr check */ #define RLCS_USHFT 8 /* Shift unit number left */ #define RLCS_ADSHFT 4 /* Shift address bits 16-17 left */ /* * Bits in Disk Address register */ #define RLDA_SEEK 0000001 /* Issue a "Seek" command */ #define RLDA_GS 0000003 /* Issue a "Get Status" command */ #define RLDA_DIR 0000004 /* Move head towards spindle */ #define RLDA_RST 0000010 /* Reset the drive */ #define RLDA_HSSEEK 0000020 /* Head select for seek */ #define RLDA_HSRW 0000100 /* Head select for read/write */ #define RLDA_CYLSHFT 7 /* * Bits in Multipurpose register */ #define RLMP_STATUS 0000007 /* Status bits mask */ #define RLMP_UNLOAD 0 /* not loaded */ #define RLMP_SPINUP 1 /* spinning up */ #define RLMP_BRUSHING 2 /* brushes out */ #define RLMP_LOADHEADS 3 /* loading heads */ #define RLMP_SEEKING 4 /* seeking */ #define RLMP_LOCKED 5 /* lock turned on */ #define RLMP_UNLHEADS 6 /* unloading heads */ #define RLMP_SPUNDOWN 7 /* disk spun down */ #define RLMP_DT 0000200 /* Set if RL02, otherwise RL01 */ #define RLMP_HS 0000100 /* Head select */ /* * RL01/RL02 disk layout. */ #define RL_BPS 256 /* Bytes/sector */ #define RL_SPT 40 /* Sectors/track */ #define RL_TPS01 256 /* Tracks/surface RL01 */ #define RL_TPS02 512 /* Tracks/surface RL02 */ #define RL_SPD 2 /* Surfaces/disk */ /* * Other... */ #define RL_MAXDPC 4 /* Max disks/controller */ |