/* $NetBSD: scsi_disk.h,v 1.2 1994/10/26 08:25:32 cgd Exp $ */ /* * 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 FORMAT_DISK 0x04 #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_format_parms { /* physical BFI format */ u_short reserved; u_short list_len; struct defect { unsigned cyl : 24; unsigned head : 8; long bytes_from_index; } defect[127]; } format_parms; 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; } ;