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freebsd/sys/scsi/scsi_disk.h
Peter Wemm 6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 
ready for it yet.
1997-02-22 09:48:43 +00:00

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/*
* SCSI interface description
*/
/*
* Some lines of this file come from a file of the name "scsi.h"
* distributed by OSF as part of mach2.5,
* so the following disclaimer has been kept.
*
* Copyright 1990 by Open Software Foundation,
* Grenoble, FRANCE
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation, and that the name of OSF or Open Software
* Foundation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission.
*
* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Largely written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
*
* $Id$
*/
/*
* SCSI command format
*/
#ifndef _SCSI_SCSI_DISK_H
#define _SCSI_SCSI_DISK_H 1
struct scsi_reassign_blocks
{
u_char op_code;
u_char byte2;
u_char unused[3];
u_char control;
};
struct scsi_rw
{
u_char op_code;
u_char addr_2; /* Most significant */
#define SRW_TOPADDR 0x1F /* only 5 bits here */
u_char addr_1;
u_char addr_0; /* least significant */
u_char length;
u_char control;
};
struct scsi_rw_big
{
u_char op_code;
u_char byte2;
#define SRWB_RELADDR 0x01
u_char addr_3; /* Most significant */
u_char addr_2;
u_char addr_1;
u_char addr_0; /* least significant */
u_char reserved;
u_char length2;
u_char length1;
u_char control;
};
struct scsi_read_capacity
{
u_char op_code;
u_char byte2;
u_char addr_3; /* Most Significant */
u_char addr_2;
u_char addr_1;
u_char addr_0; /* Least Significant */
u_char unused[3];
u_char control;
};
struct scsi_start_stop
{
u_char op_code;
u_char byte2;
u_char unused[2];
u_char how;
#define SSS_START 0x01
#define SSS_LOEJ 0x02
u_char control;
};
/*
* Opcodes
*/
#define REASSIGN_BLOCKS 0x07
#define READ_COMMAND 0x08
#define WRITE_COMMAND 0x0a
#define MODE_SELECT 0x15
#define MODE_SENSE 0x1a
#define START_STOP 0x1b
#define PREVENT_ALLOW 0x1e
#define READ_CAPACITY 0x25
#define READ_BIG 0x28
#define WRITE_BIG 0x2a
struct scsi_read_cap_data
{
u_char addr_3; /* Most significant */
u_char addr_2;
u_char addr_1;
u_char addr_0; /* Least significant */
u_char length_3; /* Most significant */
u_char length_2;
u_char length_1;
u_char length_0; /* Least significant */
};
struct scsi_reassign_blocks_data
{
u_char reserved[2];
u_char length_msb;
u_char length_lsb;
struct
{
u_char dlbaddr_3; /* defect logical block address (MSB) */
u_char dlbaddr_2;
u_char dlbaddr_1;
u_char dlbaddr_0; /* defect logical block address (LSB) */
} defect_descriptor[1];
};
union disk_pages /* this is the structure copied from osf */
{
struct page_disk_format {
u_char pg_code; /* page code (should be 3) */
#define DISK_PGCODE 0x3F /* only 6 bits valid */
u_char pg_length; /* page length (should be 0x16) */
u_char trk_z_1; /* tracks per zone (MSB) */
u_char trk_z_0; /* tracks per zone (LSB) */
u_char alt_sec_1; /* alternate sectors per zone (MSB) */
u_char alt_sec_0; /* alternate sectors per zone (LSB) */
u_char alt_trk_z_1; /* alternate tracks per zone (MSB) */
u_char alt_trk_z_0; /* alternate tracks per zone (LSB) */
u_char alt_trk_v_1; /* alternate tracks per volume (MSB) */
u_char alt_trk_v_0; /* alternate tracks per volume (LSB) */
u_char ph_sec_t_1; /* physical sectors per track (MSB) */
u_char ph_sec_t_0; /* physical sectors per track (LSB) */
u_char bytes_s_1; /* bytes per sector (MSB) */
u_char bytes_s_0; /* bytes per sector (LSB) */
u_char interleave_1;/* interleave (MSB) */
u_char interleave_0;/* interleave (LSB) */
u_char trk_skew_1; /* track skew factor (MSB) */
u_char trk_skew_0; /* track skew factor (LSB) */
u_char cyl_skew_1; /* cylinder skew (MSB) */
u_char cyl_skew_0; /* cylinder skew (LSB) */
u_char flags; /* various */
#define DISK_FMT_SURF 0x10
#define DISK_FMT_RMB 0x20
#define DISK_FMT_HSEC 0x40
#define DISK_FMT_SSEC 0x80
u_char reserved21;
u_char reserved22;
u_char reserved23;
} disk_format;
struct page_rigid_geometry {
u_char pg_code; /* page code (should be 4) */
u_char pg_length; /* page length (should be 0x16) */
u_char ncyl_2; /* number of cylinders (MSB) */
u_char ncyl_1; /* number of cylinders */
u_char ncyl_0; /* number of cylinders (LSB) */
u_char nheads; /* number of heads */
u_char st_cyl_wp_2; /* starting cyl., write precomp (MSB) */
u_char st_cyl_wp_1; /* starting cyl., write precomp */
u_char st_cyl_wp_0; /* starting cyl., write precomp (LSB) */
u_char st_cyl_rwc_2;/* starting cyl., red. write cur (MSB)*/
u_char st_cyl_rwc_1;/* starting cyl., red. write cur */
u_char st_cyl_rwc_0;/* starting cyl., red. write cur (LSB)*/
u_char driv_step_1; /* drive step rate (MSB) */
u_char driv_step_0; /* drive step rate (LSB) */
u_char land_zone_2; /* landing zone cylinder (MSB) */
u_char land_zone_1; /* landing zone cylinder */
u_char land_zone_0; /* landing zone cylinder (LSB) */
u_char rpl; /* rotational position locking (2 bits) */
u_char rot_offset; /* rotational offset */
u_char reserved19;
u_char medium_rot_rate_1; /* medium rotation rate (RPM) (MSB) */
u_char medium_rot_rate_0; /* medium rotation rate (RPM) (LSB) */
u_char reserved22;
u_char reserved23;
} rigid_geometry;
} ;
#endif /* _SCSI_SCSI_DISK_H*/
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