93 lines
3.4 KiB
C
93 lines
3.4 KiB
C
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/* $NetBSD: rlreg.h,v 1.1 2000/04/22 16:46:46 ragge Exp $ */
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/*
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* Copyright (c) 2000 Ludd, University of Lule}, Sweden. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed at Ludd, University of
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* Lule}, Sweden and its contributors.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* RL11 registers.
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*/
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#define RL_CS 0
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#define RL_BA 2
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#define RL_DA 4
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#define RL_MP 6
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#define RL_BAE 8 /* Only on RLV12 */
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/*
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* Bits in Control/Status register
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*/
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#define RLCS_DRDY 0000001
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#define RLCS_IE 0000100
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#define RLCS_CRDY 0000200
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#define RLCS_DE 0040000
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#define RLCS_ERR 0100000
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#define RLCS_ERRMSK 0036000
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/* Command to give to drive */
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#define RLCS_NOOP 0000000 /* No operation */
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#define RLCS_WCK 0000002 /* Write Check */
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#define RLCS_GS 0000004 /* Get Status */
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#define RLCS_SEEK 0000006 /* Seek */
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#define RLCS_RHDR 0000010 /* Read Header */
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#define RLCS_WD 0000012 /* Write data */
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#define RLCS_RD 0000014 /* Read data */
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#define RLCS_RDWO 0000016 /* Read data without hdr check */
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#define RLCS_USHFT 8 /* Shift unit number left */
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#define RLCS_ADSHFT 4 /* Shift address bits 16-17 left */
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/*
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* Bits in Disk Address register
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*/
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#define RLDA_SEEK 0000001 /* Issue a "Seek" command */
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#define RLDA_GS 0000003 /* Issue a "Get Status" command */
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#define RLDA_DIR 0000004 /* Move head towards spindle */
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#define RLDA_RST 0000010 /* Reset the drive */
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#define RLDA_HSSEEK 0000020 /* Head select for seek */
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#define RLDA_HSRW 0000100 /* Head select for read/write */
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#define RLDA_CYLSHFT 7
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/*
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* Bits in Multipurpose register
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*/
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#define RLMP_DT 0000200 /* Set if RL02, otherwise RL01 */
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#define RLMP_HS 0000100 /* Head select */
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/*
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* RL01/RL02 disk layout.
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*/
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#define RL_BPS 256 /* Bytes/sector */
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#define RL_SPT 40 /* Sectors/track */
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#define RL_TPS01 256 /* Tracks/surface RL01 */
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#define RL_TPS02 512 /* Tracks/surface RL02 */
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#define RL_SPD 2 /* Surfaces/disk */
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/*
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* Other...
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*/
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#define RL_MAXDPC 4 /* Max disks/controller */
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