ossaudio.c revision 1.55
1 /* $NetBSD: ossaudio.c,v 1.55 2007/03/04 06:01:29 christos 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: ossaudio.c,v 1.55 2007/03/04 06:01:29 christos Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/proc.h> 41 #include <sys/systm.h> 42 #include <sys/file.h> 43 #include <sys/vnode.h> 44 #include <sys/filedesc.h> 45 #include <sys/ioctl.h> 46 #include <sys/mount.h> 47 #include <sys/kernel.h> 48 #include <sys/audioio.h> 49 #include <sys/midiio.h> 50 51 #include <sys/syscallargs.h> 52 53 #include <compat/ossaudio/ossaudio.h> 54 #include <compat/ossaudio/ossaudiovar.h> 55 56 #ifdef AUDIO_DEBUG 57 #define DPRINTF(x) if (ossdebug) printf x 58 int ossdebug = 0; 59 #else 60 #define DPRINTF(x) 61 #endif 62 63 #define TO_OSSVOL(x) (((x) * 100 + 127) / 255) 64 #define FROM_OSSVOL(x) ((((x) > 100 ? 100 : (x)) * 255 + 50) / 100) 65 66 static struct audiodevinfo *getdevinfo __P((struct file *, struct lwp *)); 67 static int opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq); 68 static int enum_to_ord(struct audiodevinfo *di, int enm); 69 static int enum_to_mask(struct audiodevinfo *di, int enm); 70 71 static void setblocksize __P((struct file *, struct audio_info *, struct lwp *)); 72 73 74 int 75 oss_ioctl_audio(l, uap, retval) 76 struct lwp *l; 77 struct oss_sys_ioctl_args /* { 78 syscallarg(int) fd; 79 syscallarg(u_long) com; 80 syscallarg(void *) data; 81 } */ *uap; 82 register_t *retval; 83 { 84 struct proc *p = l->l_proc; 85 struct file *fp; 86 struct filedesc *fdp; 87 u_long com; 88 struct audio_info tmpinfo; 89 struct audio_offset tmpoffs; 90 struct oss_audio_buf_info bufinfo; 91 struct oss_count_info cntinfo; 92 struct audio_encoding tmpenc; 93 u_int u; 94 int idat, idata; 95 int error = 0; 96 int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 97 98 fdp = p->p_fd; 99 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 100 return (EBADF); 101 102 FILE_USE(fp); 103 104 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 105 error = EBADF; 106 goto out; 107 } 108 109 com = SCARG(uap, com); 110 DPRINTF(("oss_ioctl_audio: com=%08lx\n", com)); 111 112 retval[0] = 0; 113 114 ioctlf = fp->f_ops->fo_ioctl; 115 switch (com) { 116 case OSS_SNDCTL_DSP_RESET: 117 error = ioctlf(fp, AUDIO_FLUSH, (void *)0, l); 118 if (error) 119 goto out; 120 break; 121 case OSS_SNDCTL_DSP_SYNC: 122 error = ioctlf(fp, AUDIO_DRAIN, (void *)0, l); 123 if (error) 124 goto out; 125 break; 126 case OSS_SNDCTL_DSP_POST: 127 /* This call is merely advisory, and may be a nop. */ 128 break; 129 case OSS_SNDCTL_DSP_SPEED: 130 AUDIO_INITINFO(&tmpinfo); 131 error = copyin(SCARG(uap, data), &idat, sizeof idat); 132 if (error) 133 goto out; 134 tmpinfo.play.sample_rate = 135 tmpinfo.record.sample_rate = idat; 136 error = ioctlf(fp, AUDIO_SETINFO, (void *)&tmpinfo, l); 137 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_SPEED %d = %d\n", 138 idat, error)); 139 if (error) 140 goto out; 141 /* fall into ... */ 142 case OSS_SOUND_PCM_READ_RATE: 143 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 144 if (error) 145 goto out; 146 idat = tmpinfo.play.sample_rate; 147 error = copyout(&idat, SCARG(uap, data), sizeof idat); 148 if (error) 149 goto out; 150 break; 151 case OSS_SNDCTL_DSP_STEREO: 152 AUDIO_INITINFO(&tmpinfo); 153 error = copyin(SCARG(uap, data), &idat, sizeof idat); 154 if (error) 155 goto out; 156 tmpinfo.play.channels = 157 tmpinfo.record.channels = idat ? 2 : 1; 158 (void) ioctlf(fp, AUDIO_SETINFO, (void *)&tmpinfo, l); 159 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 160 if (error) 161 goto out; 162 idat = tmpinfo.play.channels - 1; 163 error = copyout(&idat, SCARG(uap, data), sizeof idat); 164 if (error) 165 goto out; 166 break; 167 case OSS_SNDCTL_DSP_GETBLKSIZE: 168 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 169 if (error) 170 goto out; 171 setblocksize(fp, &tmpinfo, l); 172 idat = tmpinfo.blocksize; 173 error = copyout(&idat, SCARG(uap, data), sizeof idat); 174 if (error) 175 goto out; 176 break; 177 case OSS_SNDCTL_DSP_SETFMT: 178 AUDIO_INITINFO(&tmpinfo); 179 error = copyin(SCARG(uap, data), &idat, sizeof idat); 180 if (error) 181 goto out; 182 switch (idat) { 183 case OSS_AFMT_MU_LAW: 184 tmpinfo.play.precision = 185 tmpinfo.record.precision = 8; 186 tmpinfo.play.encoding = 187 tmpinfo.record.encoding = AUDIO_ENCODING_ULAW; 188 break; 189 case OSS_AFMT_A_LAW: 190 tmpinfo.play.precision = 191 tmpinfo.record.precision = 8; 192 tmpinfo.play.encoding = 193 tmpinfo.record.encoding = AUDIO_ENCODING_ALAW; 194 break; 195 case OSS_AFMT_U8: 196 tmpinfo.play.precision = 197 tmpinfo.record.precision = 8; 198 tmpinfo.play.encoding = 199 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR; 200 break; 201 case OSS_AFMT_S8: 202 tmpinfo.play.precision = 203 tmpinfo.record.precision = 8; 204 tmpinfo.play.encoding = 205 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR; 206 break; 207 case OSS_AFMT_S16_LE: 208 tmpinfo.play.precision = 209 tmpinfo.record.precision = 16; 210 tmpinfo.play.encoding = 211 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_LE; 212 break; 213 case OSS_AFMT_S16_BE: 214 tmpinfo.play.precision = 215 tmpinfo.record.precision = 16; 216 tmpinfo.play.encoding = 217 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_BE; 218 break; 219 case OSS_AFMT_U16_LE: 220 tmpinfo.play.precision = 221 tmpinfo.record.precision = 16; 222 tmpinfo.play.encoding = 223 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_LE; 224 break; 225 case OSS_AFMT_U16_BE: 226 tmpinfo.play.precision = 227 tmpinfo.record.precision = 16; 228 tmpinfo.play.encoding = 229 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_BE; 230 break; 231 default: 232 error = EINVAL; 233 goto out; 234 } 235 (void) ioctlf(fp, AUDIO_SETINFO, (void *)&tmpinfo, l); 236 /* fall into ... */ 237 case OSS_SOUND_PCM_READ_BITS: 238 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 239 if (error) 240 goto out; 241 switch (tmpinfo.play.encoding) { 242 case AUDIO_ENCODING_ULAW: 243 idat = OSS_AFMT_MU_LAW; 244 break; 245 case AUDIO_ENCODING_ALAW: 246 idat = OSS_AFMT_A_LAW; 247 break; 248 case AUDIO_ENCODING_SLINEAR_LE: 249 if (tmpinfo.play.precision == 16) 250 idat = OSS_AFMT_S16_LE; 251 else 252 idat = OSS_AFMT_S8; 253 break; 254 case AUDIO_ENCODING_SLINEAR_BE: 255 if (tmpinfo.play.precision == 16) 256 idat = OSS_AFMT_S16_BE; 257 else 258 idat = OSS_AFMT_S8; 259 break; 260 case AUDIO_ENCODING_ULINEAR_LE: 261 if (tmpinfo.play.precision == 16) 262 idat = OSS_AFMT_U16_LE; 263 else 264 idat = OSS_AFMT_U8; 265 break; 266 case AUDIO_ENCODING_ULINEAR_BE: 267 if (tmpinfo.play.precision == 16) 268 idat = OSS_AFMT_U16_BE; 269 else 270 idat = OSS_AFMT_U8; 271 break; 272 case AUDIO_ENCODING_ADPCM: 273 idat = OSS_AFMT_IMA_ADPCM; 274 break; 275 } 276 error = copyout(&idat, SCARG(uap, data), sizeof idat); 277 if (error) 278 goto out; 279 break; 280 case OSS_SNDCTL_DSP_CHANNELS: 281 AUDIO_INITINFO(&tmpinfo); 282 error = copyin(SCARG(uap, data), &idat, sizeof idat); 283 if (error) 284 goto out; 285 tmpinfo.play.channels = 286 tmpinfo.record.channels = idat; 287 (void) ioctlf(fp, AUDIO_SETINFO, (void *)&tmpinfo, l); 288 /* fall into ... */ 289 case OSS_SOUND_PCM_READ_CHANNELS: 290 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 291 if (error) 292 goto out; 293 idat = tmpinfo.play.channels; 294 error = copyout(&idat, SCARG(uap, data), sizeof idat); 295 if (error) 296 goto out; 297 break; 298 case OSS_SOUND_PCM_WRITE_FILTER: 299 case OSS_SOUND_PCM_READ_FILTER: 300 error = EINVAL; /* XXX unimplemented */ 301 goto out; 302 case OSS_SNDCTL_DSP_SUBDIVIDE: 303 error = copyin(SCARG(uap, data), &idat, sizeof idat); 304 if (error) 305 goto out; 306 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 307 setblocksize(fp, &tmpinfo, l); 308 if (error) 309 goto out; 310 if (idat == 0) 311 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 312 idat = (tmpinfo.play.buffer_size / idat) & -4; 313 AUDIO_INITINFO(&tmpinfo); 314 tmpinfo.blocksize = idat; 315 error = ioctlf(fp, AUDIO_SETINFO, (void *)&tmpinfo, l); 316 if (error) 317 goto out; 318 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 319 error = copyout(&idat, SCARG(uap, data), sizeof idat); 320 if (error) 321 goto out; 322 break; 323 case OSS_SNDCTL_DSP_SETFRAGMENT: 324 AUDIO_INITINFO(&tmpinfo); 325 error = copyin(SCARG(uap, data), &idat, sizeof idat); 326 if (error) 327 goto out; 328 if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17) { 329 error = EINVAL; 330 goto out; 331 } 332 tmpinfo.blocksize = 1 << (idat & 0xffff); 333 tmpinfo.hiwat = (idat >> 16) & 0x7fff; 334 DPRINTF(("oss_audio: SETFRAGMENT blksize=%d, hiwat=%d\n", 335 tmpinfo.blocksize, tmpinfo.hiwat)); 336 if (tmpinfo.hiwat == 0) /* 0 means set to max */ 337 tmpinfo.hiwat = 65536; 338 (void) ioctlf(fp, AUDIO_SETINFO, (void *)&tmpinfo, l); 339 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 340 if (error) 341 goto out; 342 u = tmpinfo.blocksize; 343 for(idat = 0; u > 1; idat++, u >>= 1) 344 ; 345 idat |= (tmpinfo.hiwat & 0x7fff) << 16; 346 error = copyout(&idat, SCARG(uap, data), sizeof idat); 347 if (error) 348 goto out; 349 break; 350 case OSS_SNDCTL_DSP_GETFMTS: 351 for(idat = 0, tmpenc.index = 0; 352 ioctlf(fp, AUDIO_GETENC, (void *)&tmpenc, l) == 0; 353 tmpenc.index++) { 354 switch(tmpenc.encoding) { 355 case AUDIO_ENCODING_ULAW: 356 idat |= OSS_AFMT_MU_LAW; 357 break; 358 case AUDIO_ENCODING_ALAW: 359 idat |= OSS_AFMT_A_LAW; 360 break; 361 case AUDIO_ENCODING_SLINEAR: 362 idat |= OSS_AFMT_S8; 363 break; 364 case AUDIO_ENCODING_SLINEAR_LE: 365 if (tmpenc.precision == 16) 366 idat |= OSS_AFMT_S16_LE; 367 else 368 idat |= OSS_AFMT_S8; 369 break; 370 case AUDIO_ENCODING_SLINEAR_BE: 371 if (tmpenc.precision == 16) 372 idat |= OSS_AFMT_S16_BE; 373 else 374 idat |= OSS_AFMT_S8; 375 break; 376 case AUDIO_ENCODING_ULINEAR: 377 idat |= OSS_AFMT_U8; 378 break; 379 case AUDIO_ENCODING_ULINEAR_LE: 380 if (tmpenc.precision == 16) 381 idat |= OSS_AFMT_U16_LE; 382 else 383 idat |= OSS_AFMT_U8; 384 break; 385 case AUDIO_ENCODING_ULINEAR_BE: 386 if (tmpenc.precision == 16) 387 idat |= OSS_AFMT_U16_BE; 388 else 389 idat |= OSS_AFMT_U8; 390 break; 391 case AUDIO_ENCODING_ADPCM: 392 idat |= OSS_AFMT_IMA_ADPCM; 393 break; 394 default: 395 break; 396 } 397 } 398 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETFMTS = %x\n", idat)); 399 error = copyout(&idat, SCARG(uap, data), sizeof idat); 400 if (error) 401 goto out; 402 break; 403 case OSS_SNDCTL_DSP_GETOSPACE: 404 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 405 if (error) 406 goto out; 407 setblocksize(fp, &tmpinfo, l); 408 bufinfo.fragsize = tmpinfo.blocksize; 409 bufinfo.fragments = tmpinfo.hiwat - 410 (tmpinfo.play.seek + tmpinfo.blocksize - 1) / 411 tmpinfo.blocksize; 412 bufinfo.fragstotal = tmpinfo.hiwat; 413 bufinfo.bytes = 414 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.play.seek; 415 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 416 if (error) 417 goto out; 418 break; 419 case OSS_SNDCTL_DSP_GETISPACE: 420 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 421 if (error) 422 goto out; 423 setblocksize(fp, &tmpinfo, l); 424 bufinfo.fragsize = tmpinfo.blocksize; 425 bufinfo.fragments = tmpinfo.hiwat - 426 (tmpinfo.record.seek + tmpinfo.blocksize - 1) / 427 tmpinfo.blocksize; 428 bufinfo.fragstotal = tmpinfo.hiwat; 429 bufinfo.bytes = 430 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.record.seek; 431 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETxSPACE = %d %d %d %d\n", 432 bufinfo.fragsize, bufinfo.fragments, 433 bufinfo.fragstotal, bufinfo.bytes)); 434 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 435 if (error) 436 goto out; 437 break; 438 case OSS_SNDCTL_DSP_NONBLOCK: 439 idat = 1; 440 error = ioctlf(fp, FIONBIO, (void *)&idat, l); 441 if (error) 442 goto out; 443 break; 444 case OSS_SNDCTL_DSP_GETCAPS: 445 error = ioctlf(fp, AUDIO_GETPROPS, (void *)&idata, l); 446 if (error) 447 goto out; 448 idat = OSS_DSP_CAP_TRIGGER; /* pretend we have trigger */ 449 if (idata & AUDIO_PROP_FULLDUPLEX) 450 idat |= OSS_DSP_CAP_DUPLEX; 451 if (idata & AUDIO_PROP_MMAP) 452 idat |= OSS_DSP_CAP_MMAP; 453 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETCAPS = %x\n", idat)); 454 error = copyout(&idat, SCARG(uap, data), sizeof idat); 455 if (error) 456 goto out; 457 break; 458 #if 0 459 case OSS_SNDCTL_DSP_GETTRIGGER: 460 error = ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, l); 461 if (error) 462 goto out; 463 idat = (tmpinfo.play.pause ? 0 : OSS_PCM_ENABLE_OUTPUT) | 464 (tmpinfo.record.pause ? 0 : OSS_PCM_ENABLE_INPUT); 465 error = copyout(&idat, SCARG(uap, data), sizeof idat); 466 if (error) 467 goto out; 468 break; 469 case OSS_SNDCTL_DSP_SETTRIGGER: 470 (void) ioctlf(fp, AUDIO_GETINFO, (void *)&tmpinfo, p); 471 error = copyin(SCARG(uap, data), &idat, sizeof idat); 472 if (error) 473 goto out; 474 tmpinfo.play.pause = (idat & OSS_PCM_ENABLE_OUTPUT) == 0; 475 tmpinfo.record.pause = (idat & OSS_PCM_ENABLE_INPUT) == 0; 476 (void) ioctlf(fp, AUDIO_SETINFO, (void *)&tmpinfo, l); 477 error = copyout(&idat, SCARG(uap, data), sizeof idat); 478 if (error) 479 goto out; 480 break; 481 #else 482 case OSS_SNDCTL_DSP_GETTRIGGER: 483 case OSS_SNDCTL_DSP_SETTRIGGER: 484 /* XXX Do nothing for now. */ 485 idat = OSS_PCM_ENABLE_OUTPUT; 486 error = copyout(&idat, SCARG(uap, data), sizeof idat); 487 goto out; 488 #endif 489 case OSS_SNDCTL_DSP_GETIPTR: 490 error = ioctlf(fp, AUDIO_GETIOFFS, (void *)&tmpoffs, l); 491 if (error) 492 goto out; 493 cntinfo.bytes = tmpoffs.samples; 494 cntinfo.blocks = tmpoffs.deltablks; 495 cntinfo.ptr = tmpoffs.offset; 496 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 497 if (error) 498 goto out; 499 break; 500 case OSS_SNDCTL_DSP_GETOPTR: 501 error = ioctlf(fp, AUDIO_GETOOFFS, (void *)&tmpoffs, l); 502 if (error) 503 goto out; 504 cntinfo.bytes = tmpoffs.samples; 505 cntinfo.blocks = tmpoffs.deltablks; 506 cntinfo.ptr = tmpoffs.offset; 507 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 508 if (error) 509 goto out; 510 break; 511 case OSS_SNDCTL_DSP_SETDUPLEX: 512 idat = 1; 513 error = ioctlf(fp, AUDIO_SETFD, (void *)&idat, l); 514 goto out; 515 case OSS_SNDCTL_DSP_MAPINBUF: 516 case OSS_SNDCTL_DSP_MAPOUTBUF: 517 case OSS_SNDCTL_DSP_SETSYNCRO: 518 case OSS_SNDCTL_DSP_PROFILE: 519 error = EINVAL; 520 goto out; 521 default: 522 error = EINVAL; 523 goto out; 524 } 525 526 out: 527 FILE_UNUSE(fp, l); 528 return error; 529 } 530 531 /* If the NetBSD mixer device should have more than 32 devices 532 * some will not be available to Linux */ 533 #define NETBSD_MAXDEVS 64 534 struct audiodevinfo { 535 int done; 536 dev_t dev; 537 int16_t devmap[OSS_SOUND_MIXER_NRDEVICES], 538 rdevmap[NETBSD_MAXDEVS]; 539 char names[NETBSD_MAXDEVS][MAX_AUDIO_DEV_LEN]; 540 int enum2opaque[NETBSD_MAXDEVS]; 541 u_long devmask, recmask, stereomask; 542 u_long caps, source; 543 }; 544 545 static int 546 opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq) 547 { 548 int i, o; 549 550 for (i = 0; i < NETBSD_MAXDEVS; i++) { 551 o = di->enum2opaque[i]; 552 if (o == opq) 553 break; 554 if (o == -1 && label != NULL && 555 !strncmp(di->names[i], label->name, sizeof di->names[i])) { 556 di->enum2opaque[i] = opq; 557 break; 558 } 559 } 560 if (i >= NETBSD_MAXDEVS) 561 i = -1; 562 /*printf("opq_to_enum %s %d -> %d\n", label->name, opq, i);*/ 563 return (i); 564 } 565 566 static int 567 enum_to_ord(struct audiodevinfo *di, int enm) 568 { 569 if (enm >= NETBSD_MAXDEVS) 570 return (-1); 571 572 /*printf("enum_to_ord %d -> %d\n", enm, di->enum2opaque[enm]);*/ 573 return (di->enum2opaque[enm]); 574 } 575 576 static int 577 enum_to_mask(struct audiodevinfo *di, int enm) 578 { 579 int m; 580 if (enm >= NETBSD_MAXDEVS) 581 return (0); 582 583 m = di->enum2opaque[enm]; 584 if (m == -1) 585 m = 0; 586 /*printf("enum_to_mask %d -> %d\n", enm, di->enum2opaque[enm]);*/ 587 return (m); 588 } 589 590 /* 591 * Collect the audio device information to allow faster 592 * emulation of the Linux mixer ioctls. Cache the information 593 * to eliminate the overhead of repeating all the ioctls needed 594 * to collect the information. 595 */ 596 static struct audiodevinfo * 597 getdevinfo(fp, l) 598 struct file *fp; 599 struct lwp *l; 600 { 601 mixer_devinfo_t mi; 602 int i, j, e; 603 static const struct { 604 const char *name; 605 int code; 606 } *dp, devs[] = { 607 { AudioNmicrophone, OSS_SOUND_MIXER_MIC }, 608 { AudioNline, OSS_SOUND_MIXER_LINE }, 609 { AudioNcd, OSS_SOUND_MIXER_CD }, 610 { AudioNdac, OSS_SOUND_MIXER_PCM }, 611 { AudioNaux, OSS_SOUND_MIXER_LINE1 }, 612 { AudioNrecord, OSS_SOUND_MIXER_IMIX }, 613 { AudioNmaster, OSS_SOUND_MIXER_VOLUME }, 614 { AudioNtreble, OSS_SOUND_MIXER_TREBLE }, 615 { AudioNbass, OSS_SOUND_MIXER_BASS }, 616 { AudioNspeaker, OSS_SOUND_MIXER_SPEAKER }, 617 /* { AudioNheadphone, ?? },*/ 618 { AudioNoutput, OSS_SOUND_MIXER_OGAIN }, 619 { AudioNinput, OSS_SOUND_MIXER_IGAIN }, 620 /* { AudioNmaster, OSS_SOUND_MIXER_SPEAKER },*/ 621 /* { AudioNstereo, ?? },*/ 622 /* { AudioNmono, ?? },*/ 623 { AudioNfmsynth, OSS_SOUND_MIXER_SYNTH }, 624 /* { AudioNwave, OSS_SOUND_MIXER_PCM },*/ 625 { AudioNmidi, OSS_SOUND_MIXER_SYNTH }, 626 /* { AudioNmixerout, ?? },*/ 627 { 0, -1 } 628 }; 629 int (*ioctlf)(struct file *, u_long, void *, struct lwp *) = 630 fp->f_ops->fo_ioctl; 631 struct vnode *vp; 632 struct vattr va; 633 static struct audiodevinfo devcache; 634 struct audiodevinfo *di = &devcache; 635 int mlen, dlen; 636 637 /* 638 * Figure out what device it is so we can check if the 639 * cached data is valid. 640 */ 641 vp = (struct vnode *)fp->f_data; 642 if (vp->v_type != VCHR) 643 return 0; 644 if (VOP_GETATTR(vp, &va, l->l_cred, l)) 645 return 0; 646 if (di->done && di->dev == va.va_rdev) 647 return di; 648 649 di->done = 1; 650 di->dev = va.va_rdev; 651 di->devmask = 0; 652 di->recmask = 0; 653 di->stereomask = 0; 654 di->source = ~0; 655 di->caps = 0; 656 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 657 di->devmap[i] = -1; 658 for(i = 0; i < NETBSD_MAXDEVS; i++) { 659 di->rdevmap[i] = -1; 660 di->names[i][0] = '\0'; 661 di->enum2opaque[i] = -1; 662 } 663 for(i = 0; i < NETBSD_MAXDEVS; i++) { 664 mi.index = i; 665 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (void *)&mi, l) < 0) 666 break; 667 switch(mi.type) { 668 case AUDIO_MIXER_VALUE: 669 for(dp = devs; dp->name; dp++) { 670 if (strcmp(dp->name, mi.label.name) == 0) 671 break; 672 dlen = strlen(dp->name); 673 mlen = strlen(mi.label.name); 674 if (dlen < mlen 675 && mi.label.name[mlen-dlen-1] == '.' 676 && strcmp(dp->name, mi.label.name + mlen - dlen) == 0) 677 break; 678 } 679 if (dp->code >= 0) { 680 di->devmap[dp->code] = i; 681 di->rdevmap[i] = dp->code; 682 di->devmask |= 1 << dp->code; 683 if (mi.un.v.num_channels == 2) 684 di->stereomask |= 1 << dp->code; 685 strncpy(di->names[i], mi.label.name, 686 sizeof di->names[i]); 687 } 688 break; 689 } 690 } 691 for(i = 0; i < NETBSD_MAXDEVS; i++) { 692 mi.index = i; 693 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (void *)&mi, l) < 0) 694 break; 695 if (strcmp(mi.label.name, AudioNsource) != 0) 696 continue; 697 di->source = i; 698 switch(mi.type) { 699 case AUDIO_MIXER_ENUM: 700 for(j = 0; j < mi.un.e.num_mem; j++) { 701 e = opaque_to_enum(di, 702 &mi.un.e.member[j].label, 703 mi.un.e.member[j].ord); 704 if (e >= 0) 705 di->recmask |= 1 << di->rdevmap[e]; 706 } 707 di->caps = OSS_SOUND_CAP_EXCL_INPUT; 708 break; 709 case AUDIO_MIXER_SET: 710 for(j = 0; j < mi.un.s.num_mem; j++) { 711 e = opaque_to_enum(di, 712 &mi.un.s.member[j].label, 713 mi.un.s.member[j].mask); 714 if (e >= 0) 715 di->recmask |= 1 << di->rdevmap[e]; 716 } 717 break; 718 } 719 } 720 return di; 721 } 722 723 int 724 oss_ioctl_mixer(lwp, uap, retval) 725 struct lwp *lwp; 726 struct oss_sys_ioctl_args /* { 727 syscallarg(int) fd; 728 syscallarg(u_long) com; 729 syscallarg(void *) data; 730 } */ *uap; 731 register_t *retval; 732 { 733 struct proc *p = lwp->l_proc; 734 struct file *fp; 735 struct filedesc *fdp; 736 u_long com; 737 struct audiodevinfo *di; 738 mixer_ctrl_t mc; 739 struct oss_mixer_info omi; 740 struct audio_device adev; 741 int idat; 742 int i; 743 int error; 744 int l, r, n, e; 745 int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 746 747 fdp = p->p_fd; 748 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 749 return (EBADF); 750 751 FILE_USE(fp); 752 753 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 754 error = EBADF; 755 goto out; 756 } 757 758 com = SCARG(uap, com); 759 DPRINTF(("oss_ioctl_mixer: com=%08lx\n", com)); 760 761 retval[0] = 0; 762 763 di = getdevinfo(fp, lwp); 764 if (di == 0) { 765 error = EINVAL; 766 goto out; 767 } 768 769 ioctlf = fp->f_ops->fo_ioctl; 770 switch (com) { 771 case OSS_GET_VERSION: 772 idat = OSS_SOUND_VERSION; 773 break; 774 case OSS_SOUND_MIXER_INFO: 775 case OSS_SOUND_OLD_MIXER_INFO: 776 error = ioctlf(fp, AUDIO_GETDEV, (void *)&adev, lwp); 777 if (error) 778 goto out; 779 omi.modify_counter = 1; 780 strncpy(omi.id, adev.name, sizeof omi.id); 781 strncpy(omi.name, adev.name, sizeof omi.name); 782 error = copyout(&omi, SCARG(uap, data), OSS_IOCTL_SIZE(com)); 783 goto out; 784 case OSS_SOUND_MIXER_READ_RECSRC: 785 if (di->source == -1) { 786 error = EINVAL; 787 goto out; 788 } 789 mc.dev = di->source; 790 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 791 mc.type = AUDIO_MIXER_ENUM; 792 error = ioctlf(fp, AUDIO_MIXER_READ, (void *)&mc, lwp); 793 if (error) 794 goto out; 795 e = opaque_to_enum(di, NULL, mc.un.ord); 796 if (e >= 0) 797 idat = 1 << di->rdevmap[e]; 798 } else { 799 mc.type = AUDIO_MIXER_SET; 800 error = ioctlf(fp, AUDIO_MIXER_READ, (void *)&mc, lwp); 801 if (error) 802 goto out; 803 e = opaque_to_enum(di, NULL, mc.un.mask); 804 if (e >= 0) 805 idat = 1 << di->rdevmap[e]; 806 } 807 break; 808 case OSS_SOUND_MIXER_READ_DEVMASK: 809 idat = di->devmask; 810 break; 811 case OSS_SOUND_MIXER_READ_RECMASK: 812 idat = di->recmask; 813 break; 814 case OSS_SOUND_MIXER_READ_STEREODEVS: 815 idat = di->stereomask; 816 break; 817 case OSS_SOUND_MIXER_READ_CAPS: 818 idat = di->caps; 819 break; 820 case OSS_SOUND_MIXER_WRITE_RECSRC: 821 case OSS_SOUND_MIXER_WRITE_R_RECSRC: 822 if (di->source == -1) { 823 error = EINVAL; 824 goto out; 825 } 826 mc.dev = di->source; 827 error = copyin(SCARG(uap, data), &idat, sizeof idat); 828 if (error) 829 goto out; 830 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 831 mc.type = AUDIO_MIXER_ENUM; 832 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 833 if (idat & (1 << i)) 834 break; 835 if (i >= OSS_SOUND_MIXER_NRDEVICES || 836 di->devmap[i] == -1) { 837 error = EINVAL; 838 goto out; 839 } 840 mc.un.ord = enum_to_ord(di, di->devmap[i]); 841 } else { 842 mc.type = AUDIO_MIXER_SET; 843 mc.un.mask = 0; 844 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) { 845 if (idat & (1 << i)) { 846 if (di->devmap[i] == -1) { 847 error = EINVAL; 848 goto out; 849 } 850 mc.un.mask |= enum_to_mask(di, di->devmap[i]); 851 } 852 } 853 } 854 error = ioctlf(fp, AUDIO_MIXER_WRITE, (void *)&mc, lwp); 855 goto out; 856 default: 857 if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com && 858 com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) { 859 n = OSS_GET_DEV(com); 860 if (di->devmap[n] == -1) { 861 error = EINVAL; 862 goto out; 863 } 864 doread: 865 mc.dev = di->devmap[n]; 866 mc.type = AUDIO_MIXER_VALUE; 867 mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1; 868 error = ioctlf(fp, AUDIO_MIXER_READ, (void *)&mc, lwp); 869 if (error) 870 goto out; 871 if (mc.un.value.num_channels != 2) { 872 l = r = mc.un.value.level[AUDIO_MIXER_LEVEL_MONO]; 873 } else { 874 l = mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT]; 875 r = mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT]; 876 } 877 idat = TO_OSSVOL(l) | (TO_OSSVOL(r) << 8); 878 DPRINTF(("OSS_MIXER_READ n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 879 n, di->devmap[n], l, r, idat)); 880 break; 881 } else if ((OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_FIRST) <= com && 882 com < OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_NRDEVICES)) || 883 (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 884 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES))) { 885 n = OSS_GET_DEV(com); 886 if (di->devmap[n] == -1) { 887 error = EINVAL; 888 goto out; 889 } 890 error = copyin(SCARG(uap, data), &idat, sizeof idat); 891 if (error) 892 goto out; 893 l = FROM_OSSVOL( idat & 0xff); 894 r = FROM_OSSVOL((idat >> 8) & 0xff); 895 mc.dev = di->devmap[n]; 896 mc.type = AUDIO_MIXER_VALUE; 897 if (di->stereomask & (1<<n)) { 898 mc.un.value.num_channels = 2; 899 mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l; 900 mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r; 901 } else { 902 mc.un.value.num_channels = 1; 903 mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r)/2; 904 } 905 DPRINTF(("OSS_MIXER_WRITE n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 906 n, di->devmap[n], l, r, idat)); 907 error = ioctlf(fp, AUDIO_MIXER_WRITE, (void *)&mc, lwp); 908 if (error) 909 goto out; 910 if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 911 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) { 912 error = 0; 913 goto out; 914 } 915 goto doread; 916 } else { 917 #ifdef AUDIO_DEBUG 918 printf("oss_audio: unknown mixer ioctl %04lx\n", com); 919 #endif 920 error = EINVAL; 921 goto out; 922 } 923 } 924 error = copyout(&idat, SCARG(uap, data), sizeof idat); 925 out: 926 FILE_UNUSE(fp, lwp); 927 return error; 928 } 929 930 /* Sequencer emulation */ 931 int 932 oss_ioctl_sequencer(l, uap, retval) 933 struct lwp *l; 934 struct oss_sys_ioctl_args /* { 935 syscallarg(int) fd; 936 syscallarg(u_long) com; 937 syscallarg(void *) data; 938 } */ *uap; 939 register_t *retval; 940 { 941 struct proc *p = l->l_proc; 942 struct file *fp; 943 struct filedesc *fdp; 944 u_long com; 945 int idat, idat1; 946 struct synth_info si; 947 struct oss_synth_info osi; 948 struct oss_seq_event_rec oser; 949 int error; 950 int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 951 952 fdp = p->p_fd; 953 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 954 return (EBADF); 955 956 FILE_USE(fp); 957 958 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 959 error = EBADF; 960 goto out; 961 } 962 963 com = SCARG(uap, com); 964 DPRINTF(("oss_ioctl_sequencer: com=%08lx\n", com)); 965 966 retval[0] = 0; 967 968 ioctlf = fp->f_ops->fo_ioctl; 969 switch (com) { 970 case OSS_SEQ_RESET: 971 error = ioctlf(fp, SEQUENCER_RESET, (void *)&idat, l); 972 goto out; 973 case OSS_SEQ_SYNC: 974 error = ioctlf(fp, SEQUENCER_SYNC, (void *)&idat, l); 975 goto out; 976 case OSS_SYNTH_INFO: 977 error = copyin(SCARG(uap, data), &osi, sizeof osi); 978 if (error) 979 goto out; 980 si.device = osi.device; 981 error = ioctlf(fp, SEQUENCER_INFO, (void *)&si, l); 982 if (error) 983 goto out; 984 strncpy(osi.name, si.name, sizeof osi.name); 985 osi.device = si.device; 986 switch(si.synth_type) { 987 case SYNTH_TYPE_FM: 988 osi.synth_type = OSS_SYNTH_TYPE_FM; break; 989 case SYNTH_TYPE_SAMPLE: 990 osi.synth_type = OSS_SYNTH_TYPE_SAMPLE; break; 991 case SYNTH_TYPE_MIDI: 992 osi.synth_type = OSS_SYNTH_TYPE_MIDI; break; 993 default: 994 osi.synth_type = 0; break; 995 } 996 switch(si.synth_subtype) { 997 case SYNTH_SUB_FM_TYPE_ADLIB: 998 osi.synth_subtype = OSS_FM_TYPE_ADLIB; break; 999 case SYNTH_SUB_FM_TYPE_OPL3: 1000 osi.synth_subtype = OSS_FM_TYPE_OPL3; break; 1001 case SYNTH_SUB_MIDI_TYPE_MPU401: 1002 osi.synth_subtype = OSS_MIDI_TYPE_MPU401; break; 1003 case SYNTH_SUB_SAMPLE_TYPE_BASIC: 1004 osi.synth_subtype = OSS_SAMPLE_TYPE_BASIC; break; 1005 default: 1006 osi.synth_subtype = 0; break; 1007 } 1008 osi.perc_mode = 0; 1009 osi.nr_voices = si.nr_voices; 1010 osi.nr_drums = 0; 1011 osi.instr_bank_size = si.instr_bank_size; 1012 osi.capabilities = 0; 1013 if (si.capabilities & SYNTH_CAP_OPL3) 1014 osi.capabilities |= OSS_SYNTH_CAP_OPL3; 1015 if (si.capabilities & SYNTH_CAP_INPUT) 1016 osi.capabilities |= OSS_SYNTH_CAP_INPUT; 1017 error = copyout(&osi, SCARG(uap, data), sizeof osi); 1018 goto out; 1019 case OSS_SEQ_CTRLRATE: 1020 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1021 if (error) 1022 goto out; 1023 error = ioctlf(fp, SEQUENCER_CTRLRATE, (void *)&idat, l); 1024 if (error) 1025 goto out; 1026 retval[0] = idat; 1027 break; 1028 case OSS_SEQ_GETOUTCOUNT: 1029 error = ioctlf(fp, SEQUENCER_GETOUTCOUNT, (void *)&idat, l); 1030 if (error) 1031 goto out; 1032 retval[0] = idat; 1033 break; 1034 case OSS_SEQ_GETINCOUNT: 1035 error = ioctlf(fp, SEQUENCER_GETINCOUNT, (void *)&idat, l); 1036 if (error) 1037 goto out; 1038 retval[0] = idat; 1039 break; 1040 case OSS_SEQ_NRSYNTHS: 1041 error = ioctlf(fp, SEQUENCER_NRSYNTHS, (void *)&idat, l); 1042 if (error) 1043 goto out; 1044 retval[0] = idat; 1045 break; 1046 case OSS_SEQ_NRMIDIS: 1047 error = ioctlf(fp, SEQUENCER_NRMIDIS, (void *)&idat, l); 1048 if (error) 1049 goto out; 1050 retval[0] = idat; 1051 break; 1052 case OSS_SEQ_THRESHOLD: 1053 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1054 if (error) 1055 goto out; 1056 error = ioctlf(fp, SEQUENCER_THRESHOLD, (void *)&idat, l); 1057 goto out; 1058 case OSS_MEMAVL: 1059 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1060 if (error) 1061 goto out; 1062 error = ioctlf(fp, SEQUENCER_MEMAVL, (void *)&idat, l); 1063 if (error) 1064 goto out; 1065 retval[0] = idat; 1066 break; 1067 case OSS_SEQ_PANIC: 1068 error = ioctlf(fp, SEQUENCER_PANIC, (void *)&idat, l); 1069 goto out; 1070 case OSS_SEQ_OUTOFBAND: 1071 error = copyin(SCARG(uap, data), &oser, sizeof oser); 1072 if (error) 1073 goto out; 1074 error = ioctlf(fp, SEQUENCER_OUTOFBAND, (void *)&oser, l); 1075 if (error) 1076 goto out; 1077 break; 1078 case OSS_SEQ_GETTIME: 1079 error = ioctlf(fp, SEQUENCER_GETTIME, (void *)&idat, l); 1080 if (error) 1081 goto out; 1082 retval[0] = idat; 1083 break; 1084 case OSS_TMR_TIMEBASE: 1085 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1086 if (error) 1087 goto out; 1088 error = ioctlf(fp, SEQUENCER_TMR_TIMEBASE, (void *)&idat, l); 1089 if (error) 1090 goto out; 1091 retval[0] = idat; 1092 break; 1093 case OSS_TMR_START: 1094 error = ioctlf(fp, SEQUENCER_TMR_START, (void *)&idat, l); 1095 goto out; 1096 case OSS_TMR_STOP: 1097 error = ioctlf(fp, SEQUENCER_TMR_STOP, (void *)&idat, l); 1098 goto out; 1099 case OSS_TMR_CONTINUE: 1100 error = ioctlf(fp, SEQUENCER_TMR_CONTINUE, (void *)&idat, l); 1101 goto out; 1102 case OSS_TMR_TEMPO: 1103 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1104 if (error) 1105 goto out; 1106 error = ioctlf(fp, SEQUENCER_TMR_TEMPO, (void *)&idat, l); 1107 if (error) 1108 goto out; 1109 retval[0] = idat; 1110 break; 1111 case OSS_TMR_SOURCE: 1112 error = copyin(SCARG(uap, data), &idat1, sizeof idat); 1113 if (error) 1114 goto out; 1115 idat = 0; 1116 if (idat1 & OSS_TMR_INTERNAL) idat |= SEQUENCER_TMR_INTERNAL; 1117 error = ioctlf(fp, SEQUENCER_TMR_SOURCE, (void *)&idat, l); 1118 if (error) 1119 goto out; 1120 idat1 = idat; 1121 if (idat1 & SEQUENCER_TMR_INTERNAL) idat |= OSS_TMR_INTERNAL; 1122 retval[0] = idat; 1123 break; 1124 case OSS_TMR_METRONOME: 1125 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1126 if (error) 1127 goto out; 1128 error = ioctlf(fp, SEQUENCER_TMR_METRONOME, (void *)&idat, l); 1129 goto out; 1130 case OSS_TMR_SELECT: 1131 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1132 if (error) 1133 goto out; 1134 retval[0] = idat; 1135 error = ioctlf(fp, SEQUENCER_TMR_SELECT, (void *)&idat, l); 1136 goto out; 1137 default: 1138 error = EINVAL; 1139 goto out; 1140 } 1141 1142 error = copyout(&idat, SCARG(uap, data), sizeof idat); 1143 out: 1144 FILE_UNUSE(fp, l); 1145 return error; 1146 } 1147 1148 /* 1149 * Check that the blocksize is a power of 2 as OSS wants. 1150 * If not, set it to be. 1151 */ 1152 static void 1153 setblocksize(fp, info, l) 1154 struct file *fp; 1155 struct audio_info *info; 1156 struct lwp *l; 1157 { 1158 struct audio_info set; 1159 int s; 1160 1161 if (info->blocksize & (info->blocksize-1)) { 1162 for(s = 32; s < info->blocksize; s <<= 1) 1163 ; 1164 AUDIO_INITINFO(&set); 1165 set.blocksize = s; 1166 fp->f_ops->fo_ioctl(fp, AUDIO_SETINFO, (void *)&set, l); 1167 fp->f_ops->fo_ioctl(fp, AUDIO_GETINFO, (void *)info, l); 1168 } 1169 } 1170
Indexes created Tue Sep 23 22:09:46 GMT 2025