180 lines
5.1 KiB
C
180 lines
5.1 KiB
C
/* $NetBSD: scsi_disk.h,v 1.9 1996/03/19 03:05:15 mycroft Exp $ */
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/*
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* SCSI interface description
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*/
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/*
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* Some lines of this file come from a file of the name "scsi.h"
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* distributed by OSF as part of mach2.5,
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* so the following disclaimer has been kept.
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*
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* Copyright 1990 by Open Software Foundation,
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* Grenoble, FRANCE
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*
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation, and that the name of OSF or Open Software
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* Foundation not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission.
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*
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* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
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* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
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* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* Largely written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
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*/
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/*
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* SCSI command format
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*/
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#ifndef _SCSI_SCSI_DISK_H
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#define _SCSI_SCSI_DISK_H 1
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struct scsi_reassign_blocks {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused[3];
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u_int8_t control;
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};
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struct scsi_rw {
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u_int8_t opcode;
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u_int8_t addr[3];
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#define SRW_TOPADDR 0x1F /* only 5 bits here */
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u_int8_t length;
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u_int8_t control;
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};
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struct scsi_rw_big {
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u_int8_t opcode;
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u_int8_t byte2;
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#define SRWB_RELADDR 0x01
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u_int8_t addr[4];
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u_int8_t reserved;
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u_int8_t length[2];
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u_int8_t control;
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};
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struct scsi_read_capacity {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t addr[4];
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u_int8_t unused[3];
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u_int8_t control;
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};
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struct scsi_start_stop {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused[2];
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u_int8_t how;
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#define SSS_STOP 0x00
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#define SSS_START 0x01
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#define SSS_LOEJ 0x02
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u_int8_t control;
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};
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/*
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* Opcodes
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*/
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#define REASSIGN_BLOCKS 0x07
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#define READ_COMMAND 0x08
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#define WRITE_COMMAND 0x0a
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#define MODE_SELECT 0x15
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#define MODE_SENSE 0x1a
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#define START_STOP 0x1b
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#define PREVENT_ALLOW 0x1e
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#define READ_CAPACITY 0x25
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#define READ_BIG 0x28
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#define WRITE_BIG 0x2a
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struct scsi_read_cap_data {
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u_int8_t addr[4];
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u_int8_t length[4];
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};
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struct scsi_reassign_blocks_data {
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u_int8_t reserved[2];
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u_int8_t length[2];
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struct {
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u_int8_t dlbaddr[4];
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} defect_descriptor[1];
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};
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union disk_pages {
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#define DISK_PGCODE 0x3F /* only 6 bits valid */
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struct page_disk_format {
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u_int8_t pg_code; /* page code (should be 3) */
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u_int8_t pg_length; /* page length (should be 0x16) */
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u_int8_t trk_z[2]; /* tracks per zone */
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u_int8_t alt_sec[2]; /* alternate sectors per zone */
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u_int8_t alt_trk_z[2]; /* alternate tracks per zone */
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u_int8_t alt_trk_v[2]; /* alternate tracks per volume */
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u_int8_t ph_sec_t[2]; /* physical sectors per track */
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u_int8_t bytes_s[2]; /* bytes per sector */
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u_int8_t interleave[2]; /* interleave */
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u_int8_t trk_skew[2]; /* track skew factor */
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u_int8_t cyl_skew[2]; /* cylinder skew */
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u_int8_t flags; /* various */
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#define DISK_FMT_SURF 0x10
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#define DISK_FMT_RMB 0x20
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#define DISK_FMT_HSEC 0x40
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#define DISK_FMT_SSEC 0x80
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u_int8_t reserved2;
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u_int8_t reserved3;
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} disk_format;
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struct page_rigid_geometry {
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u_int8_t pg_code; /* page code (should be 4) */
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u_int8_t pg_length; /* page length (should be 0x16) */
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u_int8_t ncyl[3]; /* number of cylinders */
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u_int8_t nheads; /* number of heads */
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u_int8_t st_cyl_wp[3]; /* starting cyl., write precomp */
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u_int8_t st_cyl_rwc[3]; /* starting cyl., red. write cur */
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u_int8_t driv_step[2]; /* drive step rate */
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u_int8_t land_zone[3]; /* landing zone cylinder */
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u_int8_t sp_sync_ctl; /* spindle synch control */
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#define SPINDLE_SYNCH_MASK 0x03 /* mask of valid bits */
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#define SPINDLE_SYNCH_NONE 0x00 /* synch disabled or not supported */
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#define SPINDLE_SYNCH_SLAVE 0x01 /* disk is a slave */
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#define SPINDLE_SYNCH_MASTER 0x02 /* disk is a master */
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#define SPINDLE_SYNCH_MCONTROL 0x03 /* disk is a master control */
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u_int8_t rot_offset; /* rotational offset (for spindle synch) */
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u_int8_t reserved1;
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u_int8_t rpm[2]; /* media rotation speed */
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u_int8_t reserved2;
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u_int8_t reserved3;
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} rigid_geometry;
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};
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#endif /* _SCSI_SCSI_DISK_H */
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