1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1996-1998 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _SYS_SCSI_IMPL_MODE_H 28 #define _SYS_SCSI_IMPL_MODE_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * Defines and Structures for SCSI Mode Sense/Select data 38 * 39 * Implementation Specific variations 40 */ 41 42 /* 43 * Variations to Sequential Access device mode header 44 */ 45 struct modeheader_seq { 46 uchar_t datalen; /* sense data length */ 47 uchar_t mediumtype; /* medium type */ 48 #if defined(_BIT_FIELDS_LTOH) 49 uchar_t speed :4, /* speed */ 50 bufm :3, /* buffered mode */ 51 wp :1; /* write protected */ 52 #elif defined(_BIT_FIELDS_HTOL) 53 uchar_t wp :1, /* write protected */ 54 bufm :3, /* buffered mode */ 55 speed :4; /* speed */ 56 #else 57 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 58 #endif /* _BIT_FIELDS_LTOH */ 59 uchar_t bd_len; /* block length in bytes */ 60 struct block_descriptor blk_desc; 61 }; 62 63 /* 64 * Variations to Direct Access device pages 65 */ 66 67 /* 68 * Page 1: CCS error recovery page was a little different than SCSI-2/3 69 */ 70 71 #define PAGELENGTH_DAD_MODE_ERR_RECOV_CCS 0x06 72 73 struct mode_err_recov_ccs { 74 struct mode_page mode_page; /* common mode page header */ 75 #if defined(_BIT_FIELDS_LTOH) 76 uchar_t dcr : 1, /* disable correction */ 77 dte : 1, /* disable transfer on error */ 78 per : 1, /* post error */ 79 eec : 1, /* enable early correction */ 80 rc : 1, /* read continuous */ 81 tb : 1, /* transfer block */ 82 arre : 1, /* auto read realloc enabled */ 83 awre : 1; /* auto write realloc enabled */ 84 #elif defined(_BIT_FIELDS_HTOL) 85 uchar_t awre : 1, /* auto write realloc enabled */ 86 arre : 1, /* auto read realloc enabled */ 87 tb : 1, /* transfer block */ 88 rc : 1, /* read continuous */ 89 eec : 1, /* enable early correction */ 90 per : 1, /* post error */ 91 dte : 1, /* disable transfer on error */ 92 dcr : 1; /* disable correction */ 93 #else 94 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 95 #endif /* _BIT_FIELDS_LTOH */ 96 uchar_t retry_count; 97 uchar_t correction_span; 98 uchar_t head_offset_count; 99 uchar_t strobe_offset_count; 100 uchar_t recovery_time_limit; 101 }; 102 103 /* 104 * Page 3: CCS Direct Access Device Format Parameters 105 * 106 * The 0x8 bit in the Drive Type byte is used in CCS 107 * as an INHIBIT SAVE bit. This bit is not in SCSI-2/3. 108 */ 109 110 #define _reserved_ins ins 111 112 /* 113 * Page 8: SCSI-2 Cache page was a little different than SCSI-3 114 */ 115 116 #define PAGELENGTH_DAD_MODE_CACHE 0x0A 117 118 struct mode_cache { 119 struct mode_page mode_page; /* common mode page header */ 120 #if defined(_BIT_FIELDS_LTOH) 121 uchar_t rcd : 1, /* Read Cache Disable */ 122 mf : 1, /* Multiplication Factor */ 123 wce : 1, /* Write Cache Enable */ 124 : 5; 125 uchar_t write_reten_pri : 4, /* Write Retention Priority */ 126 read_reten_pri : 4; /* Demand Read Retention Priority */ 127 #elif defined(_BIT_FIELDS_HTOL) 128 uchar_t : 5, 129 wce : 1, /* Write Cache Enable */ 130 mf : 1, /* Multiplication Factor */ 131 rcd : 1; /* Read Cache Disable */ 132 uchar_t read_reten_pri : 4, /* Demand Read Retention Priority */ 133 write_reten_pri : 4; /* Write Retention Priority */ 134 #else 135 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 136 #endif /* _BIT_FIELDS_LTOH */ 137 ushort_t dis_prefetch_len; /* Disable prefetch xfer length */ 138 ushort_t min_prefetch; /* minimum prefetch length */ 139 ushort_t max_prefetch; /* maximum prefetch length */ 140 ushort_t prefetch_ceiling; /* max prefetch ceiling */ 141 }; 142 143 /* 144 * Page 0x38 - This is the CCS Cache Page 145 */ 146 147 struct mode_cache_ccs { 148 struct mode_page mode_page; /* common mode page header */ 149 uchar_t mode; /* Cache control and size */ 150 uchar_t threshold; /* Prefetch threshold */ 151 uchar_t max_prefetch; /* Max. prefetch */ 152 uchar_t max_multiplier; /* Max. prefetch multiplier */ 153 uchar_t min_prefetch; /* Min. prefetch */ 154 uchar_t min_multiplier; /* Min. prefetch multiplier */ 155 uchar_t rsvd2[8]; 156 }; 157 158 /* 159 * Page A: SCSI-2 control page was a little different than SCSI-3 160 */ 161 162 #define PAGELENGTH_MODE_CONTROL 0x06 163 164 struct mode_control { 165 struct mode_page mode_page; /* common mode page header */ 166 #if defined(_BIT_FIELDS_LTOH) 167 uchar_t rlec : 1, /* Report Log Exception bit */ 168 : 7; 169 uchar_t qdisable: 1, /* Queue disable */ 170 que_err : 1, /* Queue error */ 171 : 2, 172 que_mod : 4; /* Queue algorithm modifier */ 173 uchar_t eanp : 1, 174 uaaenp : 1, 175 raenp : 1, 176 : 4, 177 eeca : 1; 178 #elif defined(_BIT_FIELDS_HTOL) 179 uchar_t : 7, 180 rlec : 1; /* Report Log Exception bit */ 181 uchar_t que_mod : 4, /* Queue algorithm modifier */ 182 : 2, 183 que_err : 1, /* Queue error */ 184 qdisable: 1; /* Queue disable */ 185 uchar_t eeca : 1, 186 : 4, 187 raenp : 1, 188 uaaenp : 1, 189 eanp : 1; 190 #else 191 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 192 #endif /* _BIT_FIELDS_LTOH */ 193 uchar_t reserved; 194 ushort_t ready_aen_holdoff; 195 }; 196 197 198 /* 199 * Emulex MD21 Unique Mode Select/Sense structure. 200 * This is apparently not used, although the MD21 201 * documentation refers to it. 202 * 203 * The medium_type in the mode header must be 0x80 204 * to indicate a vendor unique format. There is then 205 * a standard block descriptor page, which must be 206 * zeros (although the block descriptor length is set 207 * appropriately in the mode header). 208 * 209 * After this stuff, comes the vendor unique ESDI 210 * format parameters for the MD21. 211 * 212 * Notes: 213 * 214 * 1) The logical number of sectors/track should be the 215 * number of physical sectors/track less the number spare 216 * sectors/track. 217 * 218 * 2) The logical number of cylinders should be the 219 * number of physical cylinders less three (3) reserved 220 * for use by the drive, and less any alternate cylinders 221 * allocated. 222 * 223 * 3) head skew- see MD21 manual. 224 */ 225 226 struct emulex_format_params { 227 uchar_t alt_cyl; /* number of alternate cylinders */ 228 #if defined(_BIT_FIELDS_LTOH) 229 uchar_t : 1, 230 sst : 2, /* spare sectors per track */ 231 ssz : 1, /* sector size. 1 == 256 bps, 0 == 512 bps */ 232 nheads : 4; /* number of heads */ 233 #elif defined(_BIT_FIELDS_HTOL) 234 uchar_t nheads : 4, /* number of heads */ 235 ssz : 1, /* sector size. 1 == 256 bps, 0 == 512 bps */ 236 sst : 2, /* spare sectors per track */ 237 : 1; 238 #else 239 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 240 #endif /* _BIT_FIELDS_LTOH */ 241 uchar_t nsect; /* logical sectors/track */ 242 uchar_t ncyl_hi; /* logical number of cylinders, msb */ 243 uchar_t ncyl_lo; /* logical number of cylinders, lsb */ 244 uchar_t head_skew; /* head skew */ 245 uchar_t reserved[3]; 246 }; 247 248 /* 249 * Page 0x31: CD-ROM speed page 250 */ 251 252 #define CDROM_MODE_SPEED 0x31 253 254 struct mode_speed { 255 struct mode_page mode_page; /* common mode page header */ 256 uchar_t speed; /* drive speed */ 257 uchar_t reserved; 258 }; 259 260 /* 261 * Definitions for drive speed supported are in cdio.h 262 */ 263 264 #ifdef __cplusplus 265 } 266 #endif 267 268 #endif /* _SYS_SCSI_IMPL_MODE_H */ 269