Annotation of sys/scsi/scsi_disk.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: scsi_disk.h,v 1.22 2007/06/23 19:19:49 krw Exp $ */
2: /* $NetBSD: scsi_disk.h,v 1.10 1996/07/05 16:19:05 christos Exp $ */
3:
4: /*
5: * SCSI interface description
6: */
7:
8: /*
9: * Some lines of this file come from a file of the name "scsi.h"
10: * distributed by OSF as part of mach2.5,
11: * so the following disclaimer has been kept.
12: *
13: * Copyright 1990 by Open Software Foundation,
14: * Grenoble, FRANCE
15: *
16: * All Rights Reserved
17: *
18: * Permission to use, copy, modify, and distribute this software and
19: * its documentation for any purpose and without fee is hereby granted,
20: * provided that the above copyright notice appears in all copies and
21: * that both the copyright notice and this permission notice appear in
22: * supporting documentation, and that the name of OSF or Open Software
23: * Foundation not be used in advertising or publicity pertaining to
24: * distribution of the software without specific, written prior
25: * permission.
26: *
27: * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
28: * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
29: * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
30: * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
31: * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
32: * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
33: * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
34: */
35:
36: /*
37: * Largely written by Julian Elischer (julian@tfs.com)
38: * for TRW Financial Systems.
39: *
40: * TRW Financial Systems, in accordance with their agreement with Carnegie
41: * Mellon University, makes this software available to CMU to distribute
42: * or use in any manner that they see fit as long as this message is kept with
43: * the software. For this reason TFS also grants any other persons or
44: * organisations permission to use or modify this software.
45: *
46: * TFS supplies this software to be publicly redistributed
47: * on the understanding that TFS is not responsible for the correct
48: * functioning of this software in any circumstances.
49: *
50: * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
51: */
52:
53: /*
54: * SCSI command format
55: */
56:
57: #ifndef _SCSI_SCSI_DISK_H
58: #define _SCSI_SCSI_DISK_H 1
59:
60: /*
61: * XXX Is this also used by ATAPI?
62: */
63: #define FORMAT_UNIT 0x04
64: struct scsi_format_unit {
65: u_int8_t opcode;
66: u_int8_t flags;
67: #define SFU_DLF_MASK 0x07
68: #define SFU_CMPLST 0x08
69: #define SFU_FMTDATA 0x10
70: u_int8_t vendor_specific;
71: u_int8_t interleave[2];
72: u_int8_t control;
73: };
74:
75: /*
76: * If the FmtData bit is set, a FORMAT UNIT parameter list is transferred
77: * to the target during the DATA OUT phase. The parameter list includes
78: *
79: * Defect list header
80: * Initialization pattern descriptor (if any)
81: * Defect descriptor(s) (if any)
82: */
83:
84: struct scsi_format_unit_defect_list_header {
85: u_int8_t reserved;
86: u_int8_t flags;
87: #define DLH_VS 0x01 /* vendor specific */
88: #define DLH_IMMED 0x02 /* immediate return */
89: #define DLH_DSP 0x04 /* disable saving parameters */
90: #define DLH_IP 0x08 /* initialization pattern */
91: #define DLH_STPF 0x10 /* stop format */
92: #define DLH_DCRT 0x20 /* disable certification */
93: #define DLH_DPRY 0x40 /* disable primary */
94: #define DLH_FOV 0x80 /* format options valid */
95: u_int8_t defect_lst_len[2];
96: };
97:
98: /*
99: * See Table 117 of the SCSI-2 specification for a description of
100: * the IP modifier.
101: */
102: struct scsi_initialization_pattern_descriptor {
103: u_int8_t ip_modifier;
104: u_int8_t pattern_type;
105: #define IP_TYPE_DEFAULT 0x01
106: #define IP_TYPE_REPEAT 0x01
107: /* 0x02 -> 0x7f: reserved */
108: /* 0x80 -> 0xff: vendor-specific */
109: u_int8_t pattern_length[2];
110: #if 0
111: u_int8_t pattern[...];
112: #endif
113: };
114:
115: /*
116: * Defect desciptors. These are used as the defect lists in the FORMAT UNIT
117: * and READ DEFECT DATA commands, and as the translate page of the
118: * SEND DIAGNOSTIC and RECEIVE DIAGNOSTIC RESULTS commands.
119: */
120:
121: /* Block format */
122: struct scsi_defect_descriptor_bf {
123: u_int8_t block_address[4];
124: };
125:
126: /* Bytes from index format */
127: struct scsi_defect_descriptor_bfif {
128: u_int8_t cylinder[2];
129: u_int8_t head;
130: u_int8_t bytes_from_index[2];
131: };
132:
133: /* Physical sector format */
134: struct scsi_defect_descriptor_psf {
135: u_int8_t cylinder[2];
136: u_int8_t head;
137: u_int8_t sector[2];
138: };
139:
140:
141: struct scsi_reassign_blocks {
142: u_int8_t opcode;
143: u_int8_t byte2;
144: u_int8_t unused[3];
145: u_int8_t control;
146: };
147:
148: /*
149: * XXX Is this also used by ATAPI?
150: */
151: #define REZERO_UNIT 0x01
152: struct scsi_rezero_unit {
153: u_int8_t opcode;
154: u_int8_t byte2;
155: u_int8_t reserved[3];
156: u_int8_t control;
157: };
158:
159: struct scsi_rw {
160: u_int8_t opcode;
161: u_int8_t addr[3];
162: #define SRW_TOPADDR 0x1F /* only 5 bits here */
163: u_int8_t length;
164: u_int8_t control;
165: };
166:
167: struct scsi_rw_big {
168: u_int8_t opcode;
169: u_int8_t byte2;
170: #define SRWB_RELADDR 0x01
171: u_int8_t addr[4];
172: u_int8_t reserved;
173: u_int8_t length[2];
174: u_int8_t control;
175: };
176:
177: struct scsi_rw_12 {
178: u_int8_t opcode;
179: u_int8_t byte2;
180: u_int8_t addr[4];
181: u_int8_t length[4];
182: u_int8_t reserved;
183: u_int8_t control;
184: };
185:
186: struct scsi_rw_16 {
187: u_int8_t opcode;
188: u_int8_t byte2;
189: u_int8_t addr[8];
190: u_int8_t length[4];
191: u_int8_t reserved;
192: u_int8_t control;
193: };
194:
195: struct scsi_read_capacity {
196: u_int8_t opcode;
197: u_int8_t byte2;
198: u_int8_t addr[4];
199: u_int8_t unused[3];
200: u_int8_t control;
201: };
202:
203: struct scsi_read_capacity_16 {
204: u_int8_t opcode;
205: u_int8_t byte2;
206: #define SRC16_SERVICE_ACTION 0x10
207: u_int8_t addr[8];
208: u_int8_t length[4];
209: u_int8_t reserved;
210: u_int8_t control;
211: };
212:
213: struct scsi_start_stop {
214: u_int8_t opcode;
215: u_int8_t byte2;
216: u_int8_t unused[2];
217: u_int8_t how;
218: #define SSS_STOP 0x00
219: #define SSS_START 0x01
220: #define SSS_LOEJ 0x02
221: u_int8_t control;
222: };
223:
224:
225: /*
226: * XXX Does ATAPI have an equivalent?
227: */
228: #define SYNCHRONIZE_CACHE 0x35
229: struct scsi_synchronize_cache {
230: u_int8_t opcode;
231: u_int8_t flags;
232: #define SSC_RELADR 0x01
233: #define SSC_IMMED 0x02
234: u_int8_t addr[4];
235: u_int8_t reserved;
236: u_int8_t length[2];
237: u_int8_t control;
238: };
239:
240:
241:
242: /*
243: * Disk specific opcodes
244: */
245: #define REASSIGN_BLOCKS 0x07
246: #define READ_COMMAND 0x08
247: #define WRITE_COMMAND 0x0a
248: #define READ_CAPACITY 0x25
249: #define READ_CAPACITY_16 0x9e
250: #define READ_BIG 0x28
251: #define WRITE_BIG 0x2a
252: #define READ_12 0xa8
253: #define WRITE_12 0xaa
254: #define READ_16 0x88
255: #define WRITE_16 0x8a
256: #define SYNCHRONIZE_CACHE 0x35
257:
258:
259: struct scsi_read_cap_data {
260: u_int8_t addr[4];
261: u_int8_t length[4];
262: };
263:
264: struct scsi_read_cap_data_16 {
265: u_int8_t addr[8];
266: u_int8_t length[4];
267: u_int8_t p_type_prot;
268: u_int8_t logical_per_phys;
269: u_int8_t lowest_aligned[2];
270: u_int8_t reserved[16];
271: };
272:
273: struct scsi_reassign_blocks_data {
274: u_int8_t reserved[2];
275: u_int8_t length[2];
276: struct {
277: u_int8_t dlbaddr[4];
278: } defect_descriptor[1];
279: };
280:
281: /* Only the lower 6 bits of the pg_code field are used for page #. */
282: #define DISK_PGCODE(pg, n) ((pg) != NULL) && (((pg)->pg_code & 0x3f) == n)
283: #define PAGE_DISK_FORMAT 3
284: #define PAGE_RIGID_GEOMETRY 4
285: #define PAGE_FLEX_GEOMETRY 5
286: #define PAGE_REDUCED_GEOMETRY 6
287:
288: struct page_disk_format {
289: u_int8_t pg_code; /* page code (should be 3) */
290: u_int8_t pg_length; /* page length (should be 0x16) */
291: u_int8_t trk_z[2]; /* tracks per zone */
292: u_int8_t alt_sec[2]; /* alternate sectors per zone */
293: u_int8_t alt_trk_z[2]; /* alternate tracks per zone */
294: u_int8_t alt_trk_v[2]; /* alternate tracks per volume */
295: u_int8_t ph_sec_t[2]; /* physical sectors per track */
296: u_int8_t bytes_s[2]; /* bytes per sector */
297: u_int8_t interleave[2]; /* interleave */
298: u_int8_t trk_skew[2]; /* track skew factor */
299: u_int8_t cyl_skew[2]; /* cylinder skew */
300: u_int8_t flags; /* various */
301: #define DISK_FMT_SURF 0x10
302: #define DISK_FMT_RMB 0x20
303: #define DISK_FMT_HSEC 0x40
304: #define DISK_FMT_SSEC 0x80
305: u_int8_t reserved1;
306: u_int8_t reserved2;
307: u_int8_t reserved3;
308: };
309:
310: struct page_rigid_geometry {
311: u_int8_t pg_code; /* page code (should be 4) */
312: u_int8_t pg_length; /* page length (should be 0x12 or 0x16) */
313: u_int8_t ncyl[3]; /* number of cylinders */
314: u_int8_t nheads; /* number of heads */
315: u_int8_t st_cyl_wp[3]; /* starting cyl., write precomp */
316: u_int8_t st_cyl_rwc[3]; /* starting cyl., red. write cur */
317: u_int8_t driv_step[2]; /* drive step rate */
318: u_int8_t land_zone[3]; /* landing zone cylinder */
319: u_int8_t sp_sync_ctl; /* spindle synch control */
320: #define SPINDLE_SYNCH_MASK 0x03 /* mask of valid bits */
321: #define SPINDLE_SYNCH_NONE 0x00 /* synch disabled or not supported */
322: #define SPINDLE_SYNCH_SLAVE 0x01 /* disk is a slave */
323: #define SPINDLE_SYNCH_MASTER 0x02 /* disk is a master */
324: #define SPINDLE_SYNCH_MCONTROL 0x03 /* disk is a master control */
325: u_int8_t rot_offset; /* rotational offset (for spindle synch) */
326: u_int8_t reserved1;
327: u_int8_t rpm[2]; /* media rotation speed */
328: u_int8_t reserved2;
329: u_int8_t reserved3;
330: };
331:
332: struct page_flex_geometry {
333: u_int8_t pg_code; /* page code (should be 5) */
334: u_int8_t pg_length; /* page length (should be 0x1a or 0x1e) */
335: u_int8_t xfr_rate[2];
336: u_int8_t nheads; /* number of heads */
337: u_int8_t ph_sec_tr; /* physical sectors per track */
338: u_int8_t bytes_s[2]; /* bytes per sector */
339: u_int8_t ncyl[2]; /* number of cylinders */
340: u_int8_t st_cyl_wp[2]; /* start cyl., write precomp */
341: u_int8_t st_cyl_rwc[2]; /* start cyl., red. write cur */
342: u_int8_t driv_step[2]; /* drive step rate */
343: u_int8_t driv_step_w; /* drive step pulse width */
344: u_int8_t head_settle[2];/* head settle delay */
345: u_int8_t motor_on; /* motor on delay */
346: u_int8_t motor_off; /* motor off delay */
347: u_int8_t flags; /* various flags */
348: #define MOTOR_ON 0x20 /* motor on (pin 16)? */
349: #define START_AT_SECTOR_1 0x40 /* start at sector 1 */
350: #define READY_VALID 0x20 /* RDY (pin 34) valid */
351: u_int8_t step_p_cyl; /* step pulses per cylinder */
352: u_int8_t write_pre; /* write precompensation */
353: u_int8_t head_load; /* head load delay */
354: u_int8_t head_unload; /* head unload delay */
355: u_int8_t pin_34_2; /* pin 34 (6) pin 2 (7/11) definition */
356: u_int8_t pin_4_1; /* pin 4 (8/9) pin 1 (13) definition */
357: u_int8_t rpm[2]; /* media rotation speed */
358: u_int8_t reserved1;
359: u_int8_t reserved2;
360: };
361:
362: struct page_reduced_geometry {
363: u_int8_t pg_code; /* page code (should be 6) */
364: u_int8_t pg_length; /* page length (should be 0x0B) */
365: u_int8_t wcd; /* bit 0 = write cache disable */
366: u_int8_t bytes_s[2]; /* bytes per sector */
367: u_int8_t sectors[5]; /* total number of sectors */
368: u_int8_t pow_perf; /* power/performance level */
369: u_int8_t flags; /* various */
370: #define LOCK_DISABLED 0x1
371: #define FORMAT_DISABLED 0x2
372: #define WRITE_DISABLED 0x4
373: #define READ_DISABLED 0x8
374: u_int8_t reserved;
375: };
376: #endif /* _SCSI_SCSI_DISK_H */
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