1 /* $NetBSD: scsi_disk.h,v 1.13 1997/10/03 01:56:52 thorpej Exp $ */ 2 3 /* 4 * SCSI-specific interface description 5 */ 6 7 /* 8 * Some lines of this file come from a file of the name "scsi.h" 9 * distributed by OSF as part of mach2.5, 10 * so the following disclaimer has been kept. 11 * 12 * Copyright 1990 by Open Software Foundation, 13 * Grenoble, FRANCE 14 * 15 * All Rights Reserved 16 * 17 * Permission to use, copy, modify, and distribute this software and 18 * its documentation for any purpose and without fee is hereby granted, 19 * provided that the above copyright notice appears in all copies and 20 * that both the copyright notice and this permission notice appear in 21 * supporting documentation, and that the name of OSF or Open Software 22 * Foundation not be used in advertising or publicity pertaining to 23 * distribution of the software without specific, written prior 24 * permission. 25 * 26 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 27 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 28 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 29 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 30 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 31 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 32 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 33 */ 34 35 /* 36 * Largely written by Julian Elischer (julian@tfs.com) 37 * for TRW Financial Systems. 38 * 39 * TRW Financial Systems, in accordance with their agreement with Carnegie 40 * Mellon University, makes this software available to CMU to distribute 41 * or use in any manner that they see fit as long as this message is kept with 42 * the software. For this reason TFS also grants any other persons or 43 * organisations permission to use or modify this software. 44 * 45 * TFS supplies this software to be publicly redistributed 46 * on the understanding that TFS is not responsible for the correct 47 * functioning of this software in any circumstances. 48 * 49 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 50 */ 51 52 /* 53 * SCSI command format 54 */ 55 56 #ifndef _SCSI_SCSI_DISK_H 57 #define _SCSI_SCSI_DISK_H 1 58 59 /* 60 * XXX for now this isn't in the ATAPI specs, but if there are on day 61 * ATAPI hard disks, it is likely that they implement this command (or a 62 * command like this ? 63 */ 64 #define SCSI_REASSIGN_BLOCKS 0x07 65 struct scsi_reassign_blocks { 66 u_int8_t opcode; 67 u_int8_t byte2; 68 u_int8_t unused[3]; 69 u_int8_t control; 70 }; 71 72 /* 73 * XXX Is this also used by ATAPI? 74 */ 75 #define SCSI_REZERO_UNIT 0x01 76 struct scsi_rezero_unit { 77 u_int8_t opcode; 78 u_int8_t byte2; 79 u_int8_t reserved[3]; 80 u_int8_t control; 81 }; 82 83 #define SCSI_READ_COMMAND 0x08 84 #define SCSI_WRITE_COMMAND 0x0a 85 struct scsi_rw { 86 u_int8_t opcode; 87 u_int8_t addr[3]; 88 #define SRW_TOPADDR 0x1F /* only 5 bits here */ 89 u_int8_t length; 90 u_int8_t control; 91 }; 92 93 /* DATAs definitions for the above commands */ 94 95 struct scsi_reassign_blocks_data { 96 u_int8_t reserved[2]; 97 u_int8_t length[2]; 98 struct { 99 u_int8_t dlbaddr[4]; 100 } defect_descriptor[1]; 101 }; 102 103 union scsi_disk_pages { 104 #define DISK_PGCODE 0x3F /* only 6 bits valid */ 105 struct page_disk_format { 106 u_int8_t pg_code; /* page code (should be 3) */ 107 u_int8_t pg_length; /* page length (should be 0x16) */ 108 u_int8_t trk_z[2]; /* tracks per zone */ 109 u_int8_t alt_sec[2]; /* alternate sectors per zone */ 110 u_int8_t alt_trk_z[2]; /* alternate tracks per zone */ 111 u_int8_t alt_trk_v[2]; /* alternate tracks per volume */ 112 u_int8_t ph_sec_t[2]; /* physical sectors per track */ 113 u_int8_t bytes_s[2]; /* bytes per sector */ 114 u_int8_t interleave[2]; /* interleave */ 115 u_int8_t trk_skew[2]; /* track skew factor */ 116 u_int8_t cyl_skew[2]; /* cylinder skew */ 117 u_int8_t flags; /* various */ 118 #define DISK_FMT_SURF 0x10 119 #define DISK_FMT_RMB 0x20 120 #define DISK_FMT_HSEC 0x40 121 #define DISK_FMT_SSEC 0x80 122 u_int8_t reserved2; 123 u_int8_t reserved3; 124 } disk_format; 125 struct page_rigid_geometry { 126 u_int8_t pg_code; /* page code (should be 4) */ 127 u_int8_t pg_length; /* page length (should be 0x16) */ 128 u_int8_t ncyl[3]; /* number of cylinders */ 129 u_int8_t nheads; /* number of heads */ 130 u_int8_t st_cyl_wp[3]; /* starting cyl., write precomp */ 131 u_int8_t st_cyl_rwc[3]; /* starting cyl., red. write cur */ 132 u_int8_t driv_step[2]; /* drive step rate */ 133 u_int8_t land_zone[3]; /* landing zone cylinder */ 134 u_int8_t sp_sync_ctl; /* spindle synch control */ 135 #define SPINDLE_SYNCH_MASK 0x03 /* mask of valid bits */ 136 #define SPINDLE_SYNCH_NONE 0x00 /* synch disabled or not supported */ 137 #define SPINDLE_SYNCH_SLAVE 0x01 /* disk is a slave */ 138 #define SPINDLE_SYNCH_MASTER 0x02 /* disk is a master */ 139 #define SPINDLE_SYNCH_MCONTROL 0x03 /* disk is a master control */ 140 u_int8_t rot_offset; /* rotational offset (for spindle synch) */ 141 u_int8_t reserved1; 142 u_int8_t rpm[2]; /* media rotation speed */ 143 u_int8_t reserved2; 144 u_int8_t reserved3; 145 } rigid_geometry; 146 struct page_flex_geometry { 147 u_int8_t pg_code; /* page code (should be 5) */ 148 u_int8_t pg_length; /* page length (should be 0x1e) */ 149 u_int8_t xfr_rate[2]; 150 u_int8_t nheads; /* number of heads */ 151 u_int8_t ph_sec_tr; /* physical sectors per track */ 152 u_int8_t bytes_s[2]; /* bytes per sector */ 153 u_int8_t ncyl[2]; /* number of cylinders */ 154 u_int8_t st_cyl_wp[2]; /* start cyl., write precomp */ 155 u_int8_t st_cyl_rwc[2]; /* start cyl., red. write cur */ 156 u_int8_t driv_step[2]; /* drive step rate */ 157 u_int8_t driv_step_w; /* drive step pulse width */ 158 u_int8_t head_settle[2];/* head settle delay */ 159 u_int8_t motor_on; /* motor on delay */ 160 u_int8_t motor_off; /* motor off delay */ 161 u_int8_t flags; /* various flags */ 162 #define MOTOR_ON 0x20 /* motor on (pin 16)? */ 163 #define START_AT_SECTOR_1 0x40 /* start at sector 1 */ 164 #define READY_VALID 0x20 /* RDY (pin 34) valid */ 165 u_int8_t step_p_cyl; /* step pulses per cylinder */ 166 u_int8_t write_pre; /* write precompensation */ 167 u_int8_t head_load; /* head load delay */ 168 u_int8_t head_unload; /* head unload delay */ 169 u_int8_t pin_34_2; /* pin 34 (6) pin 2 (7/11) definition */ 170 u_int8_t pin_4_1; /* pin 4 (8/9) pin 1 (13) definition */ 171 u_int8_t reserved1; 172 u_int8_t reserved2; 173 u_int8_t reserved3; 174 u_int8_t reserved4; 175 } flex_geometry; 176 }; 177 178 #endif /* _SCSI_SCSI_DISK_H */ 179