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d97875d4b0
freebsd/sys/scsi/scsi_disk.h
Nate Williams d97875d4b0 Removed PATCHKIT headers and updated our sources to Julian's with 
our patches back in.  Major changes to the Bustek driver and the
Tape driver, the rest are minor.
1993-07-29 11:49:13 +00:00

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/*
* HISTORY
* $Log: scsi_disk.h,v $
* Revision 1.1.1.1 1993/06/12 14:57:27 rgrimes
* Initial import, 0.1 + pk 0.2.4-B1
*
* Revision 1.2 1992/10/13 03:14:21 julian
* added the load-eject field in 'start/stop' for removable devices.
*
* Revision 1.1 1992/09/26 22:11:29 julian
* Initial revision
*
*/
/*
* SCSI interface description
*/
/*
* Some lines of this file comes 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
*/
/*
* SCSI command format
*/
struct scsi_reassign_blocks
{
u_char op_code;
u_char :5;
u_char lun:3;
u_char unused[3];
u_char link:1;
u_char flag:1;
u_char :6;
};
struct scsi_rw
{
u_char op_code;
u_char addr_2:5; /* Most significant */
u_char lun:3;
u_char addr_1;
u_char addr_0; /* least significant */
u_char length;
u_char link:1;
u_char flag:1;
u_char :6;
};
struct scsi_rw_big
{
u_char op_code;
u_char rel_addr:1;
u_char :4; /* Most significant */
u_char lun:3;
u_char addr_3;
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 link:1;
u_char flag:1;
u_char :4;
u_char vendor:2;
};
struct scsi_read_capacity
{
u_char op_code;
u_char :5;
u_char lun:3;
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 link:1;
u_char flag:1;
u_char :6;
};
struct scsi_start_stop
{
u_char op_code;
u_char :5;
u_char lun:3;
u_char unused[2];
u_char start:1;
u_char loej:1;
u_char :6;
u_char link:1;
u_char flag:1;
u_char :6;
};
/*
* 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:6; /* page code (should be 3) */
u_char :2;
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 reserved1:4;
u_char surf:1;
u_char rmb:1;
u_char hsec:1;
u_char ssec:1;
u_char reserved2;
u_char reserved3;
} disk_format;
struct page_rigid_geometry {
u_char pg_code:7; /* page code (should be 4) */
u_char mbone:1; /* must be one */
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 reserved1;
u_char reserved2;
u_char reserved3;
} rigid_geometry;
} ;
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