Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/scsi/scsi_rom.c
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1 /* 2 * Mach Operating System 3 * Copyright (c) 1991,1990 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the 9 * software, derivative works or modified versions, and any portions 10 * thereof, and that both notices appear in supporting documentation. 11 * 12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15 * 16 * Carnegie Mellon requests users of this software to return to 17 * 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie Mellon 24 * the rights to redistribute these changes. 25 */ 26 /* 27 * HISTORY 28 * $Log: scsi_rom.c,v $ 29 * Revision 2.11 93/03/26 23:28:22 mrt 30 * Changed and made work scsi_read_subchannel, now strictly 31 * standard-abiding. 32 * [93/03/26 af] 33 * 34 * Revision 2.10 93/03/09 10:58:32 danner 35 * Implemented missing commands. 36 * Code tested on a "DEC RRD42(C)DEC 4.5d" drive. 37 * [93/03/06 af] 38 * 39 * Revision 2.9 92/08/03 17:55:22 jfriedl 40 * removed silly prototypes 41 * [92/08/02 jfriedl] 42 * 43 * Revision 2.8 92/05/21 17:24:47 jfriedl 44 * tried prototypes. 45 * [92/05/20 jfriedl] 46 * 47 * Revision 2.7 91/06/19 11:58:05 rvb 48 * File moved here from mips/PMAX since it is now "MI" code, also 49 * used by Vax3100 and soon -- the omron luna88k. 50 * [91/06/04 rvb] 51 * 52 * Revision 2.6 91/05/14 17:31:08 mrt 53 * Correcting copyright 54 * 55 * Revision 2.5 91/05/13 06:05:46 af 56 * Removed unused code, added sccdrom_name(). 57 * [91/05/12 16:18:49 af] 58 * 59 * Revision 2.4 91/02/05 17:46:14 mrt 60 * Added author notices 61 * [91/02/04 11:20:04 mrt] 62 * 63 * Changed to use new Mach copyright 64 * [91/02/02 12:18:53 mrt] 65 * 66 * Revision 2.3 90/12/05 23:35:39 af 67 * 68 * 69 * Revision 2.1.1.1 90/11/01 03:40:19 af 70 * Created, from the SCSI specs: 71 * "Small Computer Systems Interface (SCSI)", ANSI Draft 72 * X3T9.2/82-2 - Rev 17B December 1985 73 * "Small Computer System Interface - 2 (SCSI-II)", ANSI Draft 74 * X3T9.2/86-109 - Rev 10C March 1990 75 * [90/10/11 af] 76 */ 77 /* 78 * File: scsi_rom.c 79 * Author: Alessandro Forin, Carnegie Mellon University 80 * Date: 10/90 81 * 82 * Middle layer of the SCSI driver: SCSI protocol implementation 83 * 84 * This file contains code for SCSI commands for CD-ROM devices. 85 */ 86 87 #include <mach/std_types.h> 88 #include <scsi/compat_30.h> 89 90 #include <scsi/scsi.h> 91 #include <scsi/scsi2.h> 92 #include <scsi/scsi_defs.h> 93 94 95 96 char *sccdrom_name( 97 boolean_t internal) 98 { 99 return internal ? "rz" : "CD-ROM"; 100 } 101 102 int scsi_pause_resume( 103 target_info_t *tgt, 104 boolean_t stop_it, 105 io_req_t ior) 106 { 107 scsi_cmd_pausres_t *cmd; 108 109 cmd = (scsi_cmd_pausres_t*) (tgt->cmd_ptr); 110 cmd->scsi_cmd_code = SCSI_CMD_PAUSE_RESUME; 111 cmd->scsi_cmd_lun_and_relbit = 0; 112 cmd->scsi_cmd_lba1 = 0; 113 cmd->scsi_cmd_lba2 = 0; 114 cmd->scsi_cmd_lba3 = 0; 115 cmd->scsi_cmd_lba4 = 0; 116 cmd->scsi_cmd_xxx = 0; 117 cmd->scsi_cmd_xfer_len_1 = 0; 118 cmd->scsi_cmd_pausres_res = stop_it ? 0 : SCSI_CMD_PAUSRES_RESUME; 119 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 120 121 tgt->cur_cmd = SCSI_CMD_PAUSE_RESUME; 122 123 scsi_go_and_wait(tgt, sizeof(*cmd), 0, ior); 124 125 return tgt->done; 126 } 127 128 scsi_play_audio( 129 target_info_t *tgt, 130 unsigned int start, 131 unsigned int len, 132 boolean_t relative_address, 133 io_req_t ior) 134 { 135 scsi_cmd_play_audio_t *cmd; 136 137 cmd = (scsi_cmd_play_audio_t*) (tgt->cmd_ptr); 138 cmd->scsi_cmd_code = SCSI_CMD_PLAY_AUDIO; 139 cmd->scsi_cmd_lun_and_relbit = relative_address ? SCSI_RELADR : 0; 140 cmd->scsi_cmd_lba1 = start >> 24; 141 cmd->scsi_cmd_lba2 = start >> 16; 142 cmd->scsi_cmd_lba3 = start >> 8; 143 cmd->scsi_cmd_lba4 = start >> 0; 144 cmd->scsi_cmd_xxx = 0; 145 cmd->scsi_cmd_xfer_len_1 = len >> 8; 146 cmd->scsi_cmd_xfer_len_2 = len >> 0; 147 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 148 149 tgt->cur_cmd = SCSI_CMD_PLAY_AUDIO; 150 151 scsi_go_and_wait(tgt, sizeof(*cmd), 0, ior); 152 153 return tgt->done; 154 } 155 156 scsi_play_audio_long( 157 target_info_t *tgt, 158 unsigned int start, 159 unsigned int len, 160 boolean_t relative_address, 161 io_req_t ior) 162 { 163 scsi_cmd_play_audio_l_t *cmd; 164 165 cmd = (scsi_cmd_play_audio_l_t*) (tgt->cmd_ptr); 166 cmd->scsi_cmd_code = SCSI_CMD_PLAY_AUDIO_LONG; 167 cmd->scsi_cmd_lun_and_relbit = relative_address ? SCSI_RELADR : 0; 168 cmd->scsi_cmd_lba1 = start >> 24; 169 cmd->scsi_cmd_lba2 = start >> 16; 170 cmd->scsi_cmd_lba3 = start >> 8; 171 cmd->scsi_cmd_lba4 = start >> 0; 172 cmd->scsi_cmd_xfer_len_1 = len >> 24; 173 cmd->scsi_cmd_xfer_len_2 = len >> 16; 174 cmd->scsi_cmd_xfer_len_3 = len >> 8; 175 cmd->scsi_cmd_xfer_len_4 = len >> 0; 176 cmd->scsi_cmd_xxx1 = 0; 177 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 178 179 tgt->cur_cmd = SCSI_CMD_PLAY_AUDIO_LONG; 180 181 scsi_go_and_wait(tgt, sizeof(*cmd), 0, ior); 182 183 return tgt->done; 184 } 185 186 scsi_play_audio_msf( 187 target_info_t *tgt, 188 int sm, 189 int ss, 190 int sf, 191 int em, 192 int es, 193 int ef, 194 io_req_t ior) 195 { 196 scsi_cmd_play_audio_msf_t *cmd; 197 198 cmd = (scsi_cmd_play_audio_msf_t*) (tgt->cmd_ptr); 199 cmd->scsi_cmd_code = SCSI_CMD_PLAY_AUDIO_MSF; 200 cmd->scsi_cmd_lun_and_relbit = 0; 201 cmd->scsi_cmd_lba1 = 0; 202 cmd->scsi_cmd_pamsf_startM = sm; 203 cmd->scsi_cmd_pamsf_startS = ss; 204 cmd->scsi_cmd_pamsf_startF = sf; 205 cmd->scsi_cmd_pamsf_endM = em; 206 cmd->scsi_cmd_pamsf_endS = es; 207 cmd->scsi_cmd_pamsf_endF = ef; 208 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 209 210 tgt->cur_cmd = SCSI_CMD_PLAY_AUDIO_MSF; 211 212 scsi_go_and_wait(tgt, sizeof(*cmd), 0, ior); 213 214 return tgt->done; 215 } 216 217 scsi_play_audio_track_index( 218 target_info_t *tgt, 219 int st, 220 int si, 221 int et, 222 int ei, 223 io_req_t ior) 224 { 225 scsi_cmd_play_audio_ti_t *cmd; 226 227 cmd = (scsi_cmd_play_audio_ti_t*) (tgt->cmd_ptr); 228 cmd->scsi_cmd_code = SCSI_CMD_PLAY_AUDIO_TI; 229 cmd->scsi_cmd_lun_and_relbit = 0; 230 cmd->scsi_cmd_lba1 = 0; 231 cmd->scsi_cmd_lba2 = 0; 232 cmd->scsi_cmd_pati_startT = st; 233 cmd->scsi_cmd_pati_startI = si; 234 cmd->scsi_cmd_xxx = 0; 235 cmd->scsi_cmd_pati_endT = et; 236 cmd->scsi_cmd_pati_endI = ei; 237 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 238 239 tgt->cur_cmd = SCSI_CMD_PLAY_AUDIO_TI; 240 241 scsi_go_and_wait(tgt, sizeof(*cmd), 0, ior); 242 243 return tgt->done; 244 } 245 246 scsi_play_audio_track_relative( 247 target_info_t *tgt, 248 unsigned int lba, 249 int st, 250 unsigned int len, 251 io_req_t ior) 252 { 253 scsi_cmd_play_audio_tr_t *cmd; 254 255 cmd = (scsi_cmd_play_audio_tr_t*) (tgt->cmd_ptr); 256 cmd->scsi_cmd_code = SCSI_CMD_PLAY_AUDIO_TR; 257 cmd->scsi_cmd_lun_and_relbit = 0; 258 cmd->scsi_cmd_lba1 = lba >> 24; 259 cmd->scsi_cmd_lba2 = lba >> 16; 260 cmd->scsi_cmd_lba3 = lba >> 8; 261 cmd->scsi_cmd_lba4 = lba >> 0; 262 cmd->scsi_cmd_patr_startT = st; 263 cmd->scsi_cmd_xfer_len_1 = len >> 8; 264 cmd->scsi_cmd_xfer_len_2 = len >> 0; 265 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 266 267 tgt->cur_cmd = SCSI_CMD_PLAY_AUDIO_TR; 268 269 scsi_go_and_wait(tgt, sizeof(*cmd), 0, ior); 270 271 return tgt->done; 272 } 273 274 scsi_play_audio_track_relative_long( 275 target_info_t *tgt, 276 unsigned int lba, 277 int st, 278 unsigned int len, 279 io_req_t ior) 280 { 281 scsi_cmd_play_audio_tr_l_t *cmd; 282 283 cmd = (scsi_cmd_play_audio_tr_l_t*) (tgt->cmd_ptr); 284 cmd->scsi_cmd_code = SCSI_CMD_PLAY_AUDIO_TR_LONG; 285 cmd->scsi_cmd_lun_and_relbit = 0; 286 cmd->scsi_cmd_lba1 = lba >> 24; 287 cmd->scsi_cmd_lba2 = lba >> 16; 288 cmd->scsi_cmd_lba3 = lba >> 8; 289 cmd->scsi_cmd_lba4 = lba >> 0; 290 cmd->scsi_cmd_xfer_len_1 = len >> 24; 291 cmd->scsi_cmd_xfer_len_2 = len >> 16; 292 cmd->scsi_cmd_xfer_len_3 = len >> 8; 293 cmd->scsi_cmd_xfer_len_4 = len >> 0; 294 cmd->scsi_cmd_patrl_startT = st; 295 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 296 297 tgt->cur_cmd = SCSI_CMD_PLAY_AUDIO_TR_LONG; 298 299 scsi_go_and_wait(tgt, sizeof(*cmd), 0, ior); 300 301 return tgt->done; 302 } 303 304 scsi_read_header( 305 target_info_t *tgt, 306 boolean_t msf_format, 307 unsigned int lba, 308 unsigned int allocsize, 309 io_req_t ior) 310 { 311 scsi_cmd_read_header_t *cmd; 312 313 cmd = (scsi_cmd_read_header_t*) (tgt->cmd_ptr); 314 cmd->scsi_cmd_code = SCSI_CMD_READ_HEADER; 315 cmd->scsi_cmd_lun_and_relbit = msf_format ? SCSI_CMD_CD_MSF : 0; 316 cmd->scsi_cmd_lba1 = lba >> 24; 317 cmd->scsi_cmd_lba2 = lba >> 16; 318 cmd->scsi_cmd_lba3 = lba >> 8; 319 cmd->scsi_cmd_lba4 = lba >> 0; 320 cmd->scsi_cmd_xxx = 0; 321 cmd->scsi_cmd_xfer_len_1 = allocsize >> 8; 322 cmd->scsi_cmd_xfer_len_2 = allocsize >> 0; 323 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 324 325 tgt->cur_cmd = SCSI_CMD_READ_HEADER; 326 327 scsi_go_and_wait(tgt, sizeof(*cmd), allocsize, ior); 328 329 return tgt->done; 330 } 331 332 scsi_read_subchannel( 333 target_info_t *tgt, 334 boolean_t msf_format, 335 unsigned int data_format, 336 unsigned int trackno, 337 io_req_t ior) 338 { 339 scsi_cmd_read_subch_t *cmd; 340 int allocsize; 341 342 switch (data_format) { 343 case SCSI_CMD_RS_FMT_SUBQ: 344 allocsize = sizeof(cdrom_chan_data_t); 345 trackno = 0; break; 346 case SCSI_CMD_RS_FMT_CURPOS: 347 allocsize = sizeof(cdrom_chan_curpos_t); 348 trackno = 0; break; 349 case SCSI_CMD_RS_FMT_CATALOG: 350 allocsize = sizeof(cdrom_chan_catalog_t); 351 trackno = 0; break; 352 case SCSI_CMD_RS_FMT_ISRC: 353 allocsize = sizeof(cdrom_chan_isrc_t); break; 354 } 355 356 cmd = (scsi_cmd_read_subch_t*) (tgt->cmd_ptr); 357 cmd->scsi_cmd_code = SCSI_CMD_READ_SUBCH; 358 cmd->scsi_cmd_lun_and_relbit = msf_format ? SCSI_CMD_CD_MSF : 0; 359 cmd->scsi_cmd_lba1 = SCSI_CMD_RS_SUBQ; 360 cmd->scsi_cmd_rs_format = data_format; 361 cmd->scsi_cmd_lba3 = 0; 362 cmd->scsi_cmd_lba4 = 0; 363 cmd->scsi_cmd_rs_trackno = trackno; 364 cmd->scsi_cmd_xfer_len_1 = allocsize >> 8; 365 cmd->scsi_cmd_xfer_len_2 = allocsize >> 0; 366 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 367 368 tgt->cur_cmd = SCSI_CMD_READ_SUBCH; 369 370 scsi_go_and_wait(tgt, sizeof(*cmd), allocsize, ior); 371 372 return tgt->done; 373 } 374 375 scsi_read_toc( 376 target_info_t *tgt, 377 boolean_t msf_format, 378 int trackno, 379 int allocsize, 380 io_req_t ior) 381 { 382 scsi_cmd_read_toc_t *cmd; 383 384 cmd = (scsi_cmd_read_toc_t*) (tgt->cmd_ptr); 385 cmd->scsi_cmd_code = SCSI_CMD_READ_TOC; 386 cmd->scsi_cmd_lun_and_relbit = msf_format ? SCSI_CMD_CD_MSF : 0; 387 cmd->scsi_cmd_lba1 = 0; 388 cmd->scsi_cmd_lba2 = 0; 389 cmd->scsi_cmd_lba3 = 0; 390 cmd->scsi_cmd_lba4 = 0; 391 cmd->scsi_cmd_rtoc_startT = trackno; 392 cmd->scsi_cmd_xfer_len_1 = allocsize >> 8; 393 cmd->scsi_cmd_xfer_len_2 = allocsize >> 0; 394 cmd->scsi_cmd_ctrl_byte = 0; /* not linked */ 395 396 tgt->cur_cmd = SCSI_CMD_READ_TOC; 397 398 scsi_go_and_wait(tgt, sizeof(*cmd), allocsize, ior); 399 400 return tgt->done; 401 } 402 403 /* move elsewhere ifworks */ 404 scsi2_mode_select( 405 target_info_t *tgt, 406 boolean_t save, 407 unsigned char *page, 408 int pagesize, 409 io_req_t ior) 410 { 411 scsi_cmd_mode_select_t *cmd; 412 scsi2_mode_param_t *parm; 413 414 bzero(tgt->cmd_ptr, sizeof(*cmd) + sizeof(*parm)); 415 cmd = (scsi_cmd_mode_select_t*) (tgt->cmd_ptr); 416 cmd->scsi_cmd_code = SCSI_CMD_MODE_SELECT; 417 cmd->scsi_cmd_lun_and_lba1 = SCSI_CMD_MSL_PF | (save ? SCSI_CMD_MSL_SP : 0); 418 cmd->scsi_cmd_xfer_len = pagesize; 419 420 parm = (scsi2_mode_param_t*) (cmd + 1); 421 422 bcopy(page, parm, pagesize); 423 424 tgt->cur_cmd = SCSI_CMD_MODE_SELECT; 425 426 scsi_go_and_wait(tgt, sizeof(*cmd) + pagesize, 0, ior); 427 428 return tgt->done; 429 } 430 431 /* 432 * obnoxious 433 */ 434 cdrom_vendor_specific( 435 target_info_t *tgt, 436 scsi_command_group_2 *cmd, 437 unsigned char *params, 438 int paramlen, 439 int retlen, 440 io_req_t ior) 441 { 442 bcopy(cmd, tgt->cmd_ptr, sizeof(*cmd)); 443 if (paramlen) 444 bcopy(params, tgt->cmd_ptr + sizeof(*cmd), paramlen); 445 446 tgt->cur_cmd = cmd->scsi_cmd_code; 447 448 scsi_go_and_wait(tgt, sizeof(*cmd) + paramlen, retlen, ior); 449 450 return tgt->done; 451 }
Cache object: fdac283605785bb972bf2ffe325a400a
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