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/* $OpenBSD: scsi_disk.h,v 1.6 1997/04/14 04:09:09 downsj Exp $ */
/* $NetBSD: scsi_disk.h,v 1.10 1996/07/05 16:19:05 christos Exp $ */
/*
* 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
*/
/*
* SCSI command format
*/
#ifndef _SCSI_SCSI_DISK_H
#define _SCSI_SCSI_DISK_H 1
struct scsi_reassign_blocks {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[3];
u_int8_t control;
};
struct scsi_rw {
u_int8_t opcode;
u_int8_t addr[3];
#define SRW_TOPADDR 0x1F /* only 5 bits here */
u_int8_t length;
u_int8_t control;
};
struct scsi_rw_big {
u_int8_t opcode;
u_int8_t byte2;
#define SRWB_RELADDR 0x01
u_int8_t addr[4];
u_int8_t reserved;
u_int8_t length[2];
u_int8_t control;
};
struct scsi_read_capacity {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t addr[4];
u_int8_t unused[3];
u_int8_t control;
};
struct scsi_start_stop {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[2];
u_int8_t how;
#define SSS_STOP 0x00
#define SSS_START 0x01
#define SSS_LOEJ 0x02
u_int8_t 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_int8_t addr[4];
u_int8_t length[4];
};
struct scsi_reassign_blocks_data {
u_int8_t reserved[2];
u_int8_t length[2];
struct {
u_int8_t dlbaddr[4];
} defect_descriptor[1];
};
union disk_pages {
#define DISK_PGCODE 0x3F /* only 6 bits valid */
struct page_disk_format {
u_int8_t pg_code; /* page code (should be 3) */
u_int8_t pg_length; /* page length (should be 0x16) */
u_int8_t trk_z[2]; /* tracks per zone */
u_int8_t alt_sec[2]; /* alternate sectors per zone */
u_int8_t alt_trk_z[2]; /* alternate tracks per zone */
u_int8_t alt_trk_v[2]; /* alternate tracks per volume */
u_int8_t ph_sec_t[2]; /* physical sectors per track */
u_int8_t bytes_s[2]; /* bytes per sector */
u_int8_t interleave[2]; /* interleave */
u_int8_t trk_skew[2]; /* track skew factor */
u_int8_t cyl_skew[2]; /* cylinder skew */
u_int8_t flags; /* various */
#define DISK_FMT_SURF 0x10
#define DISK_FMT_RMB 0x20
#define DISK_FMT_HSEC 0x40
#define DISK_FMT_SSEC 0x80
u_int8_t reserved2;
u_int8_t reserved3;
} disk_format;
struct page_rigid_geometry {
u_int8_t pg_code; /* page code (should be 4) */
u_int8_t pg_length; /* page length (should be 0x16) */
u_int8_t ncyl[3]; /* number of cylinders */
u_int8_t nheads; /* number of heads */
u_int8_t st_cyl_wp[3]; /* starting cyl., write precomp */
u_int8_t st_cyl_rwc[3]; /* starting cyl., red. write cur */
u_int8_t driv_step[2]; /* drive step rate */
u_int8_t land_zone[3]; /* landing zone cylinder */
u_int8_t sp_sync_ctl; /* spindle synch control */
#define SPINDLE_SYNCH_MASK 0x03 /* mask of valid bits */
#define SPINDLE_SYNCH_NONE 0x00 /* synch disabled or not supported */
#define SPINDLE_SYNCH_SLAVE 0x01 /* disk is a slave */
#define SPINDLE_SYNCH_MASTER 0x02 /* disk is a master */
#define SPINDLE_SYNCH_MCONTROL 0x03 /* disk is a master control */
u_int8_t rot_offset; /* rotational offset (for spindle synch) */
u_int8_t reserved1;
u_int8_t rpm[2]; /* media rotation speed */
u_int8_t reserved2;
u_int8_t reserved3;
} rigid_geometry;
struct page_flex_geometry {
u_int8_t pg_code; /* page code (should be 5) */
u_int8_t pg_length; /* page length (should be 0x1e) */
u_int8_t xfr_rate[2];
u_int8_t nheads; /* number of heads */
u_int8_t ph_sec_tr; /* physical sectors per track */
u_int8_t bytes_s[2]; /* bytes per sector */
u_int8_t ncyl[2]; /* number of cylinders */
u_int8_t st_cyl_wp[2]; /* start cyl., write precomp */
u_int8_t st_cyl_rwc[2]; /* start cyl., red. write cur */
u_int8_t driv_step[2]; /* drive step rate */
u_int8_t driv_step_w; /* drive step pulse width */
u_int8_t head_settle[2];/* head settle delay */
u_int8_t motor_on; /* motor on delay */
u_int8_t motor_off; /* motor off delay */
u_int8_t flags; /* various flags */
#define MOTOR_ON 0x20 /* motor on (pin 16)? */
#define START_AT_SECTOR_1 0x40 /* start at sector 1 */
#define READY_VALID 0x20 /* RDY (pin 34) valid */
u_int8_t step_p_cyl; /* step pulses per cylinder */
u_int8_t write_pre; /* write precompensation */
u_int8_t head_load; /* head load delay */
u_int8_t head_unload; /* head unload delay */
u_int8_t pin_34_2; /* pin 34 (6) pin 2 (7/11) definition */
u_int8_t pin_4_1; /* pin 4 (8/9) pin 1 (13) definition */
u_int8_t reserved1;
u_int8_t reserved2;
u_int8_t reserved3;
u_int8_t reserved4;
} flex_geometry;
};
#endif /* _SCSI_SCSI_DISK_H */
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