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

/*
 * HISTORY
 * $Log: scsi_disk.h,v $
 * 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
 *
 *
 * PATCHES MAGIC                LEVEL   PATCH THAT GOT US HERE
 * --------------------         -----   ----------------------
 * CURRENT PATCH LEVEL:         1       00098
 * --------------------         -----   ----------------------
 *
 * 16 Feb 93	Julian Elischer		ADDED for SCSI system
 * 
 */

/*
 * 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;
} ;
Commit	Line	Data
15637ed4 RG	1	/*
	2	* HISTORY
	3	* $Log: scsi_disk.h,v $
	4	* Revision 1.2 1992/10/13 03:14:21 julian
	5	* added the load-eject field in 'start/stop' for removable devices.
	6	*
	7	* Revision 1.1 1992/09/26 22:11:29 julian
	8	* Initial revision
	9	*
	10	*
	11	* PATCHES MAGIC LEVEL PATCH THAT GOT US HERE
	12	* -------------------- ----- ----------------------
	13	* CURRENT PATCH LEVEL: 1 00098
	14	* -------------------- ----- ----------------------
	15	*
	16	* 16 Feb 93 Julian Elischer ADDED for SCSI system
	17	*
	18	*/
	19
	20	/*
	21	* SCSI interface description
	22	*/
	23
	24	/*
	25	* Some lines of this file comes from a file of the name "scsi.h"
	26	* distributed by OSF as part of mach2.5,
	27	* so the following disclaimer has been kept.
	28	*
	29	* Copyright 1990 by Open Software Foundation,
	30	* Grenoble, FRANCE
	31	*
	32	* All Rights Reserved
	33	*
	34	* Permission to use, copy, modify, and distribute this software and
	35	* its documentation for any purpose and without fee is hereby granted,
	36	* provided that the above copyright notice appears in all copies and
	37	* that both the copyright notice and this permission notice appear in
	38	* supporting documentation, and that the name of OSF or Open Software
	39	* Foundation not be used in advertising or publicity pertaining to
	40	* distribution of the software without specific, written prior
	41	* permission.
	42	*
	43	* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
	44	* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
	45	* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
	46	* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
	47	* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
	48	* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
	49	* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	50	*/
	51
	52	/*
	53	* Largely written by Julian Elischer (julian@tfs.com)
	54	* for TRW Financial Systems.
	55	*
	56	* TRW Financial Systems, in accordance with their agreement with Carnegie
	57	* Mellon University, makes this software available to CMU to distribute
	58	* or use in any manner that they see fit as long as this message is kept with
	59	* the software. For this reason TFS also grants any other persons or
	60	* organisations permission to use or modify this software.
	61	*
	62	* TFS supplies this software to be publicly redistributed
	63	* on the understanding that TFS is not responsible for the correct
	64	* functioning of this software in any circumstances.
65	*
66	*/
67
68	/*
69	* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
70	*/
71
72	/*
73	* SCSI command format
74	*/
75
76
77	struct scsi_reassign_blocks
78	{
79	u_char op_code;
80	u_char :5;
81	u_char lun:3;
82	u_char unused[3];
83	u_char link:1;
84	u_char flag:1;
85	u_char :6;
86	};
87
88	struct scsi_rw
89	{
90	u_char op_code;
91	u_char addr_2:5; /* Most significant */
92	u_char lun:3;
93	u_char addr_1;
94	u_char addr_0; /* least significant */
95	u_char length;
96	u_char link:1;
97	u_char flag:1;
98	u_char :6;
99	};
100
101	struct scsi_rw_big
102	{
103	u_char op_code;
104	u_char rel_addr:1;
105	u_char :4; /* Most significant */
106	u_char lun:3;
107	u_char addr_3;
108	u_char addr_2;
109	u_char addr_1;
110	u_char addr_0; /* least significant */
111	u_char reserved;;
112	u_char length2;
113	u_char length1;
114	u_char link:1;
115	u_char flag:1;
116	u_char :4;
117	u_char vendor:2;
118	};
119
120	struct scsi_read_capacity
121	{
122	u_char op_code;
123	u_char :5;
124	u_char lun:3;
125	u_char addr_3; /* Most Significant */
126	u_char addr_2;
127	u_char addr_1;
128	u_char addr_0; /* Least Significant */
129	u_char unused[3];
130	u_char link:1;
131	u_char flag:1;
132	u_char :6;
133	};
134
135	struct scsi_start_stop
136	{
137	u_char op_code;
138	u_char :5;
139	u_char lun:3;
140	u_char unused[2];
141	u_char start:1;
142	u_char loej:1;
143	u_char :6;
144	u_char link:1;
145	u_char flag:1;
146	u_char :6;
147	};
148
149
150
151	/*
152	* Opcodes
153	*/
154
155	#define REASSIGN_BLOCKS 0x07
156	#define READ_COMMAND 0x08
157	#define WRITE_COMMAND 0x0a
158	#define MODE_SELECT 0x15
159	#define MODE_SENSE 0x1a
160	#define START_STOP 0x1b
161	#define PREVENT_ALLOW 0x1e
162	#define READ_CAPACITY 0x25
163	#define READ_BIG 0x28
164	#define WRITE_BIG 0x2a
165
166
167
168	struct scsi_read_cap_data
169	{
170	u_char addr_3; /* Most significant */
171	u_char addr_2;
172	u_char addr_1;
173	u_char addr_0; /* Least significant */
174	u_char length_3; /* Most significant */
175	u_char length_2;
176	u_char length_1;
177	u_char length_0; /* Least significant */
178	};
179
180	struct scsi_reassign_blocks_data
181	{
182	u_char reserved[2];
183	u_char length_msb;
184	u_char length_lsb;
185	struct
186	{
187	u_char dlbaddr_3; /* defect logical block address (MSB) */
188	u_char dlbaddr_2;
189	u_char dlbaddr_1;
190	u_char dlbaddr_0; /* defect logical block address (LSB) */
191	} defect_descriptor[1];
192	};
193
194	union disk_pages /* this is the structure copied from osf */
195	{
196	struct page_disk_format {
197	u_char pg_code:6; /* page code (should be 3) */
198	u_char :2;
199	u_char pg_length; /* page length (should be 0x16) */
200	u_char trk_z_1; /* tracks per zone (MSB) */
201	u_char trk_z_0; /* tracks per zone (LSB) */
202	u_char alt_sec_1; /* alternate sectors per zone (MSB) */
203	u_char alt_sec_0; /* alternate sectors per zone (LSB) */
204	u_char alt_trk_z_1; /* alternate tracks per zone (MSB) */
205	u_char alt_trk_z_0; /* alternate tracks per zone (LSB) */
206	u_char alt_trk_v_1; /* alternate tracks per volume (MSB) */
207	u_char alt_trk_v_0; /* alternate tracks per volume (LSB) */
208	u_char ph_sec_t_1; /* physical sectors per track (MSB) */
209	u_char ph_sec_t_0; /* physical sectors per track (LSB) */
210	u_char bytes_s_1; /* bytes per sector (MSB) */
211	u_char bytes_s_0; /* bytes per sector (LSB) */
212	u_char interleave_1;/* interleave (MSB) */
213	u_char interleave_0;/* interleave (LSB) */
214	u_char trk_skew_1; /* track skew factor (MSB) */
215	u_char trk_skew_0; /* track skew factor (LSB) */
216	u_char cyl_skew_1; /* cylinder skew (MSB) */
217	u_char cyl_skew_0; /* cylinder skew (LSB) */
218	u_char reserved1:4;
219	u_char surf:1;
220	u_char rmb:1;
221	u_char hsec:1;
222	u_char ssec:1;
223	u_char reserved2;
224	u_char reserved3;
225	} disk_format;
226	struct page_rigid_geometry {
227	u_char pg_code:7; /* page code (should be 4) */
228	u_char mbone:1; /* must be one */
229	u_char pg_length; /* page length (should be 0x16) */
230	u_char ncyl_2; /* number of cylinders (MSB) */
231	u_char ncyl_1; /* number of cylinders */
232	u_char ncyl_0; /* number of cylinders (LSB) */
233	u_char nheads; /* number of heads */
234	u_char st_cyl_wp_2; /* starting cyl., write precomp (MSB) */
235	u_char st_cyl_wp_1; /* starting cyl., write precomp */
236	u_char st_cyl_wp_0; /* starting cyl., write precomp (LSB) */
237	u_char st_cyl_rwc_2;/* starting cyl., red. write cur (MSB)*/
238	u_char st_cyl_rwc_1;/* starting cyl., red. write cur */
239	u_char st_cyl_rwc_0;/* starting cyl., red. write cur (LSB)*/
240	u_char driv_step_1; /* drive step rate (MSB) */
241	u_char driv_step_0; /* drive step rate (LSB) */
242	u_char land_zone_2; /* landing zone cylinder (MSB) */
243	u_char land_zone_1; /* landing zone cylinder */
244	u_char land_zone_0; /* landing zone cylinder (LSB) */
245	u_char reserved1;
246	u_char reserved2;
247	u_char reserved3;
248	} rigid_geometry;
249	} ;