Annotation of sys/scsi/scsi_disk.h, Revision 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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