/* $OpenBSD: scsi_disk.h,v 1.18 2005/08/17 02:17:51 krw 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 /* * XXX Is this also used by ATAPI? */ #define FORMAT_UNIT 0x04 struct scsi_format_unit { u_int8_t opcode; u_int8_t flags; #define SFU_DLF_MASK 0x07 #define SFU_CMPLST 0x08 #define SFU_FMTDATA 0x10 u_int8_t vendor_specific; u_int8_t interleave[2]; u_int8_t control; }; /* * If the FmtData bit is set, a FORMAT UNIT parameter list is transferred * to the target during the DATA OUT phase. The parameter list includes * * Defect list header * Initialization pattern descriptor (if any) * Defect descriptor(s) (if any) */ struct scsi_format_unit_defect_list_header { u_int8_t reserved; u_int8_t flags; #define DLH_VS 0x01 /* vendor specific */ #define DLH_IMMED 0x02 /* immediate return */ #define DLH_DSP 0x04 /* disable saving parameters */ #define DLH_IP 0x08 /* initialization pattern */ #define DLH_STPF 0x10 /* stop format */ #define DLH_DCRT 0x20 /* disable certification */ #define DLH_DPRY 0x40 /* disable primary */ #define DLH_FOV 0x80 /* format options valid */ u_int8_t defect_lst_len[2]; }; /* * See Table 117 of the SCSI-2 specification for a description of * the IP modifier. */ struct scsi_initialization_pattern_descriptor { u_int8_t ip_modifier; u_int8_t pattern_type; #define IP_TYPE_DEFAULT 0x01 #define IP_TYPE_REPEAT 0x01 /* 0x02 -> 0x7f: reserved */ /* 0x80 -> 0xff: vendor-specific */ u_int8_t pattern_length[2]; #if 0 u_int8_t pattern[...]; #endif }; /* * Defect desciptors. These are used as the defect lists in the FORMAT UNIT * and READ DEFECT DATA commands, and as the translate page of the * SEND DIAGNOSTIC and RECEIVE DIAGNOSTIC RESULTS commands. */ /* Block format */ struct scsi_defect_descriptor_bf { u_int8_t block_address[4]; }; /* Bytes from index format */ struct scsi_defect_descriptor_bfif { u_int8_t cylinder[2]; u_int8_t head; u_int8_t bytes_from_index[2]; }; /* Physical sector format */ struct scsi_defect_descriptor_psf { u_int8_t cylinder[2]; u_int8_t head; u_int8_t sector[2]; }; struct scsi_reassign_blocks { u_int8_t opcode; u_int8_t byte2; u_int8_t unused[3]; u_int8_t control; }; /* * XXX Is this also used by ATAPI? */ #define REZERO_UNIT 0x01 struct scsi_rezero_unit { u_int8_t opcode; u_int8_t byte2; u_int8_t reserved[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; }; /* * XXX Does ATAPI have an equivalent? */ #define SYNCHRONIZE_CACHE 0x35 struct scsi_synchronize_cache { u_int8_t opcode; u_int8_t flags; #define SSC_RELADR 0x01 #define SSC_IMMED 0x02 u_int8_t addr[4]; u_int8_t reserved; u_int8_t length[2]; u_int8_t control; }; /* * Disk specific opcodes */ #define REASSIGN_BLOCKS 0x07 #define READ_COMMAND 0x08 #define WRITE_COMMAND 0x0a #define READ_CAPACITY 0x25 #define READ_BIG 0x28 #define WRITE_BIG 0x2a #define SYNCHRONIZE_CACHE 0x35 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]; }; /* Only the lower 6 bits of the pg_code field are used for page #. */ #define DISK_PGCODE(pg, n) ((pg) != NULL) && (((pg)->pg_code & 0x3f) == n) #define PAGE_DISK_FORMAT 3 #define PAGE_RIGID_GEOMETRY 4 #define PAGE_FLEX_GEOMETRY 5 #define PAGE_REDUCED_GEOMETRY 6 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 reserved1; u_int8_t reserved2; u_int8_t reserved3; }; 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; }; 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 rpm[2]; /* media rotation speed */ u_int8_t reserved1; u_int8_t reserved2; }; struct page_reduced_geometry { u_int8_t pg_code; /* page code (should be 6) */ u_int8_t pg_length; /* page length (should be 0x0B) */ u_int8_t wcd; /* bit 0 = write cache disable */ u_int8_t bytes_s[2]; /* bytes per sector */ u_int8_t sectors[5]; /* total number of sectors */ u_int8_t pow_perf; /* power/performance level */ u_int8_t flags; /* various */ #define LOCK_DISABLED 0x1 #define FORMAT_DISABLED 0x2 #define WRITE_DISABLED 0x4 #define READ_DISABLED 0x8 u_int8_t reserved; }; union scsi_disk_pages { struct page_disk_format disk_format; struct page_rigid_geometry rigid_geometry; struct page_flex_geometry flex_geometry; struct page_reduced_geometry reduced_geometry; }; #endif /* _SCSI_SCSI_DISK_H */