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