[unix-history] / sys / scsi / scsi_disk.h

/*
 * 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_disk.h,v 1.4 93/08/26 21:09:23 julian Exp Locker: julian $
 */

/*
 * 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 reserved2;
	   u_char reserved3;
	} 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 reserved1;
	   u_char reserved2;
	   u_char reserved3;
    	} rigid_geometry;
} ;
#endif /* _SCSI_SCSI_DISK_H*/
Commit	Line	Data
15637ed4 RG	1	/*
	2	* SCSI interface description
	3	*/
	4
	5	/*
519fb2b7	6	* Some lines of this file come from a file of the name "scsi.h"
15637ed4 RG	7	* distributed by OSF as part of mach2.5,
	8	* so the following disclaimer has been kept.
	9	*
	10	* Copyright 1990 by Open Software Foundation,
	11	* Grenoble, FRANCE
	12	*
	13	* All Rights Reserved
	14	*
	15	* Permission to use, copy, modify, and distribute this software and
	16	* its documentation for any purpose and without fee is hereby granted,
	17	* provided that the above copyright notice appears in all copies and
	18	* that both the copyright notice and this permission notice appear in
	19	* supporting documentation, and that the name of OSF or Open Software
	20	* Foundation not be used in advertising or publicity pertaining to
	21	* distribution of the software without specific, written prior
	22	* permission.
	23	*
	24	* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
	25	* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
	26	* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
	27	* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
	28	* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
	29	* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
	30	* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	31	*/
	32
	33	/*
	34	* Largely written by Julian Elischer (julian@tfs.com)
	35	* for TRW Financial Systems.
	36	*
	37	* TRW Financial Systems, in accordance with their agreement with Carnegie
	38	* Mellon University, makes this software available to CMU to distribute
	39	* or use in any manner that they see fit as long as this message is kept with
	40	* the software. For this reason TFS also grants any other persons or
	41	* organisations permission to use or modify this software.
	42	*
	43	* TFS supplies this software to be publicly redistributed
	44	* on the understanding that TFS is not responsible for the correct
	45	* functioning of this software in any circumstances.
	46	*
15637ed4	47	* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
98639498	48	*
519fb2b7	49	* $Id: scsi_disk.h,v 1.4 93/08/26 21:09:23 julian Exp Locker: julian $
15637ed4 RG	50	*/
	51
	52	/*
	53	* SCSI command format
	54	*/
	55
519fb2b7 RG	56	#ifndef _SCSI_SCSI_DISK_H
519fb2b7 RG	57	#define _SCSI_SCSI_DISK_H 1
15637ed4 RG	58
	59	struct scsi_reassign_blocks
	60	{
	61	u_char op_code;
869c4419	62	u_char byte2;
15637ed4	63	u_char unused[3];
869c4419	64	u_char control;
15637ed4 RG	65	};
	66
	67	struct scsi_rw
	68	{
	69	u_char op_code;
869c4419 RG	70	u_char addr_2; /* Most significant */
869c4419 RG	71	#define SRW_TOPADDR 0x1F /* only 5 bits here */
15637ed4 RG	72	u_char addr_1;
	73	u_char addr_0; /* least significant */
	74	u_char length;
869c4419	75	u_char control;
15637ed4 RG	76	};
	77
	78	struct scsi_rw_big
	79	{
	80	u_char op_code;
869c4419 RG	81	u_char byte2;
	82	#define SRWB_RELADDR 0x01
	83	u_char addr_3; /* Most significant */
15637ed4 RG	84	u_char addr_2;
	85	u_char addr_1;
	86	u_char addr_0; /* least significant */
	87	u_char reserved;;
	88	u_char length2;
	89	u_char length1;
869c4419	90	u_char control;
15637ed4 RG	91	};
	92
	93	struct scsi_read_capacity
	94	{
	95	u_char op_code;
869c4419	96	u_char byte2;
15637ed4 RG	97	u_char addr_3; /* Most Significant */
	98	u_char addr_2;
	99	u_char addr_1;
	100	u_char addr_0; /* Least Significant */
	101	u_char unused[3];
869c4419	102	u_char control;
15637ed4 RG	103	};
	104
	105	struct scsi_start_stop
	106	{
	107	u_char op_code;
869c4419	108	u_char byte2;
15637ed4	109	u_char unused[2];
869c4419 RG	110	u_char how;
	111	#define SSS_START 0x01
	112	#define SSS_LOEJ 0x02
	113	u_char control;
15637ed4 RG	114	};
	115
	116
	117
	118	/*
	119	* Opcodes
	120	*/
	121
	122	#define REASSIGN_BLOCKS 0x07
	123	#define READ_COMMAND 0x08
	124	#define WRITE_COMMAND 0x0a
	125	#define MODE_SELECT 0x15
	126	#define MODE_SENSE 0x1a
	127	#define START_STOP 0x1b
	128	#define PREVENT_ALLOW 0x1e
	129	#define READ_CAPACITY 0x25
	130	#define READ_BIG 0x28
	131	#define WRITE_BIG 0x2a
	132
	133
	134
	135	struct scsi_read_cap_data
	136	{
	137	u_char addr_3; /* Most significant */
	138	u_char addr_2;
	139	u_char addr_1;
	140	u_char addr_0; /* Least significant */
	141	u_char length_3; /* Most significant */
	142	u_char length_2;
	143	u_char length_1;
	144	u_char length_0; /* Least significant */
	145	};
	146
	147	struct scsi_reassign_blocks_data
	148	{
	149	u_char reserved[2];
	150	u_char length_msb;
	151	u_char length_lsb;
	152	struct
	153	{
	154	u_char dlbaddr_3; /* defect logical block address (MSB) */
	155	u_char dlbaddr_2;
	156	u_char dlbaddr_1;
	157	u_char dlbaddr_0; /* defect logical block address (LSB) */
	158	} defect_descriptor[1];
	159	};
	160
	161	union disk_pages /* this is the structure copied from osf */
	162	{
	163	struct page_disk_format {
869c4419 RG	164	u_char pg_code; /* page code (should be 3) */
869c4419 RG	165	#define DISK_PGCODE 0x3F /* only 6 bits valid */
15637ed4 RG	166	u_char pg_length; /* page length (should be 0x16) */
	167	u_char trk_z_1; /* tracks per zone (MSB) */
	168	u_char trk_z_0; /* tracks per zone (LSB) */
	169	u_char alt_sec_1; /* alternate sectors per zone (MSB) */
	170	u_char alt_sec_0; /* alternate sectors per zone (LSB) */
	171	u_char alt_trk_z_1; /* alternate tracks per zone (MSB) */
	172	u_char alt_trk_z_0; /* alternate tracks per zone (LSB) */
	173	u_char alt_trk_v_1; /* alternate tracks per volume (MSB) */
	174	u_char alt_trk_v_0; /* alternate tracks per volume (LSB) */
	175	u_char ph_sec_t_1; /* physical sectors per track (MSB) */
	176	u_char ph_sec_t_0; /* physical sectors per track (LSB) */
	177	u_char bytes_s_1; /* bytes per sector (MSB) */
	178	u_char bytes_s_0; /* bytes per sector (LSB) */
	179	u_char interleave_1;/* interleave (MSB) */
	180	u_char interleave_0;/* interleave (LSB) */
	181	u_char trk_skew_1; /* track skew factor (MSB) */
	182	u_char trk_skew_0; /* track skew factor (LSB) */
	183	u_char cyl_skew_1; /* cylinder skew (MSB) */
	184	u_char cyl_skew_0; /* cylinder skew (LSB) */
869c4419 RG	185	u_char flags; /* various */
	186	#define DISK_FMT_SURF 0x10
	187	#define DISK_FMT_RMB 0x20
	188	#define DISK_FMT_HSEC 0x40
	189	#define DISK_FMT_SSEC 0x80
15637ed4 RG	190	u_char reserved2;
	191	u_char reserved3;
	192	} disk_format;
	193	struct page_rigid_geometry {
869c4419	194	u_char pg_code; /* page code (should be 4) */
15637ed4 RG	195	u_char pg_length; /* page length (should be 0x16) */
	196	u_char ncyl_2; /* number of cylinders (MSB) */
	197	u_char ncyl_1; /* number of cylinders */
	198	u_char ncyl_0; /* number of cylinders (LSB) */
	199	u_char nheads; /* number of heads */
	200	u_char st_cyl_wp_2; /* starting cyl., write precomp (MSB) */
	201	u_char st_cyl_wp_1; /* starting cyl., write precomp */
	202	u_char st_cyl_wp_0; /* starting cyl., write precomp (LSB) */
	203	u_char st_cyl_rwc_2;/* starting cyl., red. write cur (MSB)*/
	204	u_char st_cyl_rwc_1;/* starting cyl., red. write cur */
	205	u_char st_cyl_rwc_0;/* starting cyl., red. write cur (LSB)*/
	206	u_char driv_step_1; /* drive step rate (MSB) */
	207	u_char driv_step_0; /* drive step rate (LSB) */
	208	u_char land_zone_2; /* landing zone cylinder (MSB) */
	209	u_char land_zone_1; /* landing zone cylinder */
	210	u_char land_zone_0; /* landing zone cylinder (LSB) */
	211	u_char reserved1;
	212	u_char reserved2;
	213	u_char reserved3;
	214	} rigid_geometry;
	215	} ;
519fb2b7	216	#endif /* _SCSI_SCSI_DISK_H*/