Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/compat/linux/common/linux_cdrom.c
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1 /* $NetBSD: linux_cdrom.c,v 1.17 2003/06/29 22:29:26 fvdl Exp $ */ 2 3 /* 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: linux_cdrom.c,v 1.17 2003/06/29 22:29:26 fvdl Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/ioctl.h> 42 #include <sys/file.h> 43 #include <sys/filedesc.h> 44 #include <sys/mount.h> 45 #include <sys/proc.h> 46 #include <sys/cdio.h> 47 #include <sys/dvdio.h> 48 49 #include <sys/sa.h> 50 #include <sys/syscallargs.h> 51 52 #include <compat/linux/common/linux_types.h> 53 #include <compat/linux/common/linux_ioctl.h> 54 #include <compat/linux/common/linux_signal.h> 55 #include <compat/linux/common/linux_util.h> 56 #include <compat/linux/common/linux_cdrom.h> 57 58 #include <compat/linux/linux_syscallargs.h> 59 60 static int bsd_to_linux_msf_lba(unsigned address_format, union msf_lba *bml, 61 union linux_cdrom_addr *llml); 62 63 #if DEBUG_LINUX 64 #define DPRINTF(x) uprintf x 65 #else 66 #define DPRINTF(x) 67 #endif 68 69 /* 70 * XXX from dev/scsipi/cd.c 71 */ 72 #define MAXTRACK 99 73 74 static int 75 bsd_to_linux_msf_lba(unsigned address_format, union msf_lba *bml, 76 union linux_cdrom_addr *llml) 77 { 78 switch (address_format) { 79 case CD_LBA_FORMAT: 80 llml->lba = bml->lba; 81 break; 82 case CD_MSF_FORMAT: 83 llml->msf.minute = bml->msf.minute; 84 llml->msf.second = bml->msf.second; 85 llml->msf.frame = bml->msf.frame; 86 break; 87 default: 88 return -1; 89 } 90 return 0; 91 } 92 93 int 94 linux_ioctl_cdrom(p, uap, retval) 95 struct proc *p; 96 struct linux_sys_ioctl_args /* { 97 syscallarg(int) fd; 98 syscallarg(u_long) com; 99 syscallarg(caddr_t) data; 100 } */ *uap; 101 register_t *retval; 102 { 103 int error, idata; 104 u_long com, ncom; 105 caddr_t sg; 106 struct file *fp; 107 struct filedesc *fdp; 108 int (*ioctlf)(struct file *, u_long, void *, struct proc *); 109 110 struct linux_cdrom_blk l_blk; 111 struct linux_cdrom_msf l_msf; 112 struct linux_cdrom_ti l_ti; 113 struct linux_cdrom_tochdr l_tochdr; 114 struct linux_cdrom_tocentry l_tocentry; 115 struct linux_cdrom_subchnl l_subchnl; 116 struct linux_cdrom_volctrl l_volctrl; 117 struct linux_cdrom_multisession l_session; 118 119 struct ioc_play_blocks t_blocks; 120 struct ioc_play_msf t_msf; 121 struct ioc_play_track t_track; 122 struct ioc_toc_header t_header; 123 struct cd_toc_entry *entry, t_entry; 124 struct ioc_read_toc_entry t_toc_entry; 125 struct cd_sub_channel_info *info, t_info; 126 struct ioc_read_subchannel t_subchannel; 127 struct ioc_vol t_vol; 128 129 dvd_struct ds; 130 dvd_authinfo dai; 131 132 fdp = p->p_fd; 133 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 134 return (EBADF); 135 136 FILE_USE(fp); 137 138 com = SCARG(uap, com); 139 ioctlf = fp->f_ops->fo_ioctl; 140 retval[0] = error = 0; 141 142 switch(com) { 143 case LINUX_CDROMPLAYMSF: 144 error = copyin(SCARG(uap, data), &l_msf, sizeof l_msf); 145 if (error) 146 break; 147 148 t_msf.start_m = l_msf.cdmsf_min0; 149 t_msf.start_s = l_msf.cdmsf_sec0; 150 t_msf.start_f = l_msf.cdmsf_frame0; 151 t_msf.end_m = l_msf.cdmsf_min1; 152 t_msf.end_s = l_msf.cdmsf_sec1; 153 t_msf.end_f = l_msf.cdmsf_frame1; 154 155 error = ioctlf(fp, CDIOCPLAYMSF, (caddr_t)&t_msf, p); 156 break; 157 158 case LINUX_CDROMPLAYTRKIND: 159 error = copyin(SCARG(uap, data), &l_ti, sizeof l_ti); 160 if (error) 161 break; 162 163 t_track.start_track = l_ti.cdti_trk0; 164 t_track.start_index = l_ti.cdti_ind0; 165 t_track.end_track = l_ti.cdti_trk1; 166 t_track.end_index = l_ti.cdti_ind1; 167 168 error = ioctlf(fp, CDIOCPLAYTRACKS, (caddr_t)&t_track, p); 169 break; 170 171 case LINUX_CDROMREADTOCHDR: 172 error = ioctlf(fp, CDIOREADTOCHEADER, (caddr_t)&t_header, p); 173 if (error) 174 break; 175 176 l_tochdr.cdth_trk0 = t_header.starting_track; 177 l_tochdr.cdth_trk1 = t_header.ending_track; 178 179 error = copyout(&l_tochdr, SCARG(uap, data), sizeof l_tochdr); 180 break; 181 182 case LINUX_CDROMREADTOCENTRY: 183 error = copyin(SCARG(uap, data), &l_tocentry, 184 sizeof l_tocentry); 185 if (error) 186 break; 187 188 sg = stackgap_init(p, 0); 189 entry = stackgap_alloc(p, &sg, sizeof *entry); 190 t_toc_entry.address_format = l_tocentry.cdte_format; 191 t_toc_entry.starting_track = l_tocentry.cdte_track; 192 t_toc_entry.data_len = sizeof *entry; 193 t_toc_entry.data = entry; 194 195 error = ioctlf(fp, CDIOREADTOCENTRIES, (caddr_t)&t_toc_entry, 196 p); 197 if (error) 198 break; 199 200 error = copyin(entry, &t_entry, sizeof t_entry); 201 if (error) 202 break; 203 204 l_tocentry.cdte_adr = t_entry.addr_type; 205 l_tocentry.cdte_ctrl = t_entry.control; 206 if (bsd_to_linux_msf_lba(t_entry.addr_type, &t_entry.addr, 207 &l_tocentry.cdte_addr) < 0) { 208 DPRINTF(("linux_ioctl: unknown format msf/lba\n")); 209 error = EINVAL; 210 break; 211 } 212 213 error = copyout(&l_tocentry, SCARG(uap, data), 214 sizeof l_tocentry); 215 break; 216 217 case LINUX_CDROMVOLCTRL: 218 error = copyin(SCARG(uap, data), &l_volctrl, sizeof l_volctrl); 219 if (error) 220 break; 221 222 t_vol.vol[0] = l_volctrl.channel0; 223 t_vol.vol[1] = l_volctrl.channel1; 224 t_vol.vol[2] = l_volctrl.channel2; 225 t_vol.vol[3] = l_volctrl.channel3; 226 227 error = ioctlf(fp, CDIOCSETVOL, (caddr_t)&t_vol, p); 228 break; 229 230 case LINUX_CDROMVOLREAD: 231 error = ioctlf(fp, CDIOCGETVOL, (caddr_t)&t_vol, p); 232 if (error) 233 break; 234 235 l_volctrl.channel0 = t_vol.vol[0]; 236 l_volctrl.channel1 = t_vol.vol[1]; 237 l_volctrl.channel2 = t_vol.vol[2]; 238 l_volctrl.channel3 = t_vol.vol[3]; 239 240 error = copyout(&l_volctrl, SCARG(uap, data), sizeof l_volctrl); 241 break; 242 243 case LINUX_CDROMSUBCHNL: 244 error = copyin(SCARG(uap, data), &l_subchnl, sizeof l_subchnl); 245 if (error) 246 break; 247 248 sg = stackgap_init(p, 0); 249 info = stackgap_alloc(p, &sg, sizeof *info); 250 t_subchannel.address_format = CD_MSF_FORMAT; 251 t_subchannel.track = 0; 252 t_subchannel.data_format = l_subchnl.cdsc_format; 253 t_subchannel.data_len = sizeof *info; 254 t_subchannel.data = info; 255 DPRINTF(("linux_ioctl: CDROMSUBCHNL %d %d\n", 256 l_subchnl.cdsc_format, l_subchnl.cdsc_trk)); 257 258 error = ioctlf(fp, CDIOCREADSUBCHANNEL, (caddr_t)&t_subchannel, 259 p); 260 if (error) 261 break; 262 263 error = copyin(info, &t_info, sizeof t_info); 264 if (error) 265 break; 266 267 l_subchnl.cdsc_audiostatus = t_info.header.audio_status; 268 l_subchnl.cdsc_adr = t_info.what.position.addr_type; 269 l_subchnl.cdsc_ctrl = t_info.what.position.control; 270 l_subchnl.cdsc_ind = t_info.what.position.index_number; 271 272 DPRINTF(("linux_ioctl: CDIOCREADSUBCHANNEL %d %d %d\n", 273 t_info.header.audio_status, 274 t_info.header.data_len[0], 275 t_info.header.data_len[1])); 276 DPRINTF(("(more) %d %d %d %d %d\n", 277 t_info.what.position.data_format, 278 t_info.what.position.control, 279 t_info.what.position.addr_type, 280 t_info.what.position.track_number, 281 t_info.what.position.index_number)); 282 283 if (bsd_to_linux_msf_lba(t_subchannel.address_format, 284 &t_info.what.position.absaddr, 285 &l_subchnl.cdsc_absaddr) < 0 || 286 bsd_to_linux_msf_lba(t_subchannel.address_format, 287 &t_info.what.position.reladdr, 288 &l_subchnl.cdsc_reladdr) < 0) { 289 DPRINTF(("linux_ioctl: unknown format msf/lba\n")); 290 error = EINVAL; 291 break; 292 } 293 294 error = copyout(&l_subchnl, SCARG(uap, data), sizeof l_subchnl); 295 break; 296 297 case LINUX_CDROMPLAYBLK: 298 error = copyin(SCARG(uap, data), &l_blk, sizeof l_blk); 299 if (error) 300 break; 301 302 t_blocks.blk = l_blk.from; 303 t_blocks.len = l_blk.len; 304 305 error = ioctlf(fp, CDIOCPLAYBLOCKS, (caddr_t)&t_blocks, p); 306 break; 307 308 case LINUX_CDROMEJECT_SW: 309 error = copyin(SCARG(uap, data), &idata, sizeof idata); 310 if (error) 311 break; 312 313 if (idata == 1) 314 ncom = CDIOCALLOW; 315 else 316 ncom = CDIOCPREVENT; 317 error = ioctlf(fp, ncom, NULL, p); 318 break; 319 320 case LINUX_CDROMPAUSE: 321 error = ioctlf(fp, CDIOCPAUSE, NULL, p); 322 break; 323 324 case LINUX_CDROMRESUME: 325 error = ioctlf(fp, CDIOCRESUME, NULL, p); 326 break; 327 328 case LINUX_CDROMSTOP: 329 error = ioctlf(fp, CDIOCSTOP, NULL, p); 330 break; 331 332 case LINUX_CDROMSTART: 333 error = ioctlf(fp, CDIOCSTART, NULL, p); 334 break; 335 336 case LINUX_CDROMEJECT: 337 error = ioctlf(fp, CDIOCEJECT, NULL, p); 338 break; 339 340 case LINUX_CDROMRESET: 341 error = ioctlf(fp, CDIOCRESET, NULL, p); 342 break; 343 344 case LINUX_CDROMMULTISESSION: 345 error = copyin(SCARG(uap, data), &l_session, sizeof l_session); 346 if (error) 347 break; 348 349 error = ioctlf(fp, CDIOREADTOCHEADER, (caddr_t)&t_header, p); 350 if (error) 351 break; 352 353 sg = stackgap_init(p, 0); 354 entry = stackgap_alloc(p, &sg, sizeof *entry); 355 t_toc_entry.address_format = l_session.addr_format; 356 t_toc_entry.starting_track = 0; 357 t_toc_entry.data_len = sizeof *entry; 358 t_toc_entry.data = entry; 359 360 error = ioctlf(fp, CDIOREADTOCENTRIES, 361 (caddr_t)&t_toc_entry, p); 362 if (error) 363 break; 364 365 error = copyin(entry, &t_entry, sizeof t_entry); 366 if (error) 367 break; 368 369 if (bsd_to_linux_msf_lba(l_session.addr_format, 370 &t_entry.addr, &l_session.addr) < 0) { 371 error = EINVAL; 372 break; 373 } 374 375 l_session.xa_flag = 376 t_header.starting_track != t_header.ending_track; 377 378 error = copyout(&l_session, SCARG(uap, data), sizeof l_session); 379 break; 380 381 case LINUX_CDROMCLOSETRAY: 382 error = ioctlf(fp, CDIOCCLOSE, NULL, p); 383 break; 384 385 case LINUX_CDROM_LOCKDOOR: 386 ncom = SCARG(uap, data) != 0 ? CDIOCPREVENT : CDIOCALLOW; 387 error = ioctlf(fp, ncom, NULL, p); 388 break; 389 390 case LINUX_CDROM_SET_OPTIONS: 391 case LINUX_CDROM_CLEAR_OPTIONS: 392 /* whatever you say */ 393 break; 394 395 case LINUX_CDROM_DEBUG: 396 ncom = SCARG(uap, data) != 0 ? CDIOCSETDEBUG : CDIOCCLRDEBUG; 397 error = ioctlf(fp, ncom, NULL, p); 398 break; 399 400 case LINUX_CDROM_SELECT_SPEED: 401 case LINUX_CDROM_SELECT_DISC: 402 case LINUX_CDROM_MEDIA_CHANGED: 403 case LINUX_CDROM_DRIVE_STATUS: 404 case LINUX_CDROM_DISC_STATUS: 405 case LINUX_CDROM_CHANGER_NSLOTS: 406 case LINUX_CDROM_GET_CAPABILITY: 407 error = ENOSYS; 408 break; 409 410 case LINUX_DVD_READ_STRUCT: 411 error = copyin(SCARG(uap, data), &ds, sizeof ds); 412 if (error) 413 break; 414 error = ioctlf(fp, DVD_READ_STRUCT, (caddr_t)&ds, p); 415 if (error) 416 break; 417 error = copyout(&ds, SCARG(uap, data), sizeof ds); 418 break; 419 420 case LINUX_DVD_WRITE_STRUCT: 421 error = copyin(SCARG(uap, data), &ds, sizeof ds); 422 if (error) 423 break; 424 error = ioctlf(fp, DVD_WRITE_STRUCT, (caddr_t)&ds, p); 425 if (error) 426 break; 427 error = copyout(&ds, SCARG(uap, data), sizeof ds); 428 break; 429 430 case LINUX_DVD_AUTH: 431 error = copyin(SCARG(uap, data), &dai, sizeof dai); 432 if (error) 433 break; 434 error = ioctlf(fp, DVD_AUTH, (caddr_t)&dai, p); 435 if (error) 436 break; 437 error = copyout(&dai, SCARG(uap, data), sizeof dai); 438 break; 439 440 441 default: 442 DPRINTF(("linux_ioctl: unimplemented ioctl %08lx\n", com)); 443 error = EINVAL; 444 } 445 446 FILE_UNUSE(fp, p); 447 return error; 448 }
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