ossaudio.c revision 1.36
1 /* $NetBSD: ossaudio.c,v 1.36 2001/06/14 20:32:44 thorpej 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/param.h> 37 #include <sys/proc.h> 38 #include <sys/systm.h> 39 #include <sys/file.h> 40 #include <sys/vnode.h> 41 #include <sys/filedesc.h> 42 #include <sys/ioctl.h> 43 #include <sys/mount.h> 44 #include <sys/kernel.h> 45 #include <sys/audioio.h> 46 #include <sys/midiio.h> 47 48 #include <sys/syscallargs.h> 49 50 #include <compat/ossaudio/ossaudio.h> 51 #include <compat/ossaudio/ossaudiovar.h> 52 53 #ifdef AUDIO_DEBUG 54 #define DPRINTF(x) if (ossdebug) printf x 55 int ossdebug = 0; 56 #else 57 #define DPRINTF(x) 58 #endif 59 60 #define TO_OSSVOL(x) (((x) * 100 + 127) / 255) 61 #define FROM_OSSVOL(x) ((((x) > 100 ? 100 : (x)) * 255 + 50) / 100) 62 63 static struct audiodevinfo *getdevinfo __P((struct file *, struct proc *)); 64 static int opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq); 65 static int enum_to_ord(struct audiodevinfo *di, int enm); 66 static int enum_to_mask(struct audiodevinfo *di, int enm); 67 68 static void setblocksize __P((struct file *, struct audio_info *, struct proc *)); 69 70 71 int 72 oss_ioctl_audio(p, uap, retval) 73 struct proc *p; 74 struct oss_sys_ioctl_args /* { 75 syscallarg(int) fd; 76 syscallarg(u_long) com; 77 syscallarg(caddr_t) data; 78 } */ *uap; 79 register_t *retval; 80 { 81 struct file *fp; 82 struct filedesc *fdp; 83 u_long com; 84 struct audio_info tmpinfo; 85 struct audio_offset tmpoffs; 86 struct oss_audio_buf_info bufinfo; 87 struct oss_count_info cntinfo; 88 struct audio_encoding tmpenc; 89 u_int u; 90 int idat, idata; 91 int error = 0; 92 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 93 94 fdp = p->p_fd; 95 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 96 return (EBADF); 97 98 FILE_USE(fp); 99 100 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 101 error = EBADF; 102 goto out; 103 } 104 105 com = SCARG(uap, com); 106 DPRINTF(("oss_ioctl_audio: com=%08lx\n", com)); 107 108 retval[0] = 0; 109 110 ioctlf = fp->f_ops->fo_ioctl; 111 switch (com) { 112 case OSS_SNDCTL_DSP_RESET: 113 error = ioctlf(fp, AUDIO_FLUSH, (caddr_t)0, p); 114 if (error) 115 goto out; 116 break; 117 case OSS_SNDCTL_DSP_SYNC: 118 case OSS_SNDCTL_DSP_POST: 119 error = ioctlf(fp, AUDIO_DRAIN, (caddr_t)0, p); 120 if (error) 121 goto out; 122 break; 123 case OSS_SNDCTL_DSP_SPEED: 124 AUDIO_INITINFO(&tmpinfo); 125 error = copyin(SCARG(uap, data), &idat, sizeof idat); 126 if (error) 127 goto out; 128 tmpinfo.play.sample_rate = 129 tmpinfo.record.sample_rate = idat; 130 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 131 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_SPEED %d = %d\n", 132 idat, error)); 133 if (error) 134 goto out; 135 /* fall into ... */ 136 case OSS_SOUND_PCM_READ_RATE: 137 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 138 if (error) 139 goto out; 140 idat = tmpinfo.play.sample_rate; 141 error = copyout(&idat, SCARG(uap, data), sizeof idat); 142 if (error) 143 goto out; 144 break; 145 case OSS_SNDCTL_DSP_STEREO: 146 AUDIO_INITINFO(&tmpinfo); 147 error = copyin(SCARG(uap, data), &idat, sizeof idat); 148 if (error) 149 goto out; 150 tmpinfo.play.channels = 151 tmpinfo.record.channels = idat ? 2 : 1; 152 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 153 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 154 if (error) 155 goto out; 156 idat = tmpinfo.play.channels - 1; 157 error = copyout(&idat, SCARG(uap, data), sizeof idat); 158 if (error) 159 goto out; 160 break; 161 case OSS_SNDCTL_DSP_GETBLKSIZE: 162 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 163 if (error) 164 goto out; 165 setblocksize(fp, &tmpinfo, p); 166 idat = tmpinfo.blocksize; 167 error = copyout(&idat, SCARG(uap, data), sizeof idat); 168 if (error) 169 goto out; 170 break; 171 case OSS_SNDCTL_DSP_SETFMT: 172 AUDIO_INITINFO(&tmpinfo); 173 error = copyin(SCARG(uap, data), &idat, sizeof idat); 174 if (error) 175 goto out; 176 switch (idat) { 177 case OSS_AFMT_MU_LAW: 178 tmpinfo.play.precision = 179 tmpinfo.record.precision = 8; 180 tmpinfo.play.encoding = 181 tmpinfo.record.encoding = AUDIO_ENCODING_ULAW; 182 break; 183 case OSS_AFMT_A_LAW: 184 tmpinfo.play.precision = 185 tmpinfo.record.precision = 8; 186 tmpinfo.play.encoding = 187 tmpinfo.record.encoding = AUDIO_ENCODING_ALAW; 188 break; 189 case OSS_AFMT_U8: 190 tmpinfo.play.precision = 191 tmpinfo.record.precision = 8; 192 tmpinfo.play.encoding = 193 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR; 194 break; 195 case OSS_AFMT_S8: 196 tmpinfo.play.precision = 197 tmpinfo.record.precision = 8; 198 tmpinfo.play.encoding = 199 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR; 200 break; 201 case OSS_AFMT_S16_LE: 202 tmpinfo.play.precision = 203 tmpinfo.record.precision = 16; 204 tmpinfo.play.encoding = 205 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_LE; 206 break; 207 case OSS_AFMT_S16_BE: 208 tmpinfo.play.precision = 209 tmpinfo.record.precision = 16; 210 tmpinfo.play.encoding = 211 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_BE; 212 break; 213 case OSS_AFMT_U16_LE: 214 tmpinfo.play.precision = 215 tmpinfo.record.precision = 16; 216 tmpinfo.play.encoding = 217 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_LE; 218 break; 219 case OSS_AFMT_U16_BE: 220 tmpinfo.play.precision = 221 tmpinfo.record.precision = 16; 222 tmpinfo.play.encoding = 223 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_BE; 224 break; 225 default: 226 error = EINVAL; 227 goto out; 228 } 229 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 230 /* fall into ... */ 231 case OSS_SOUND_PCM_READ_BITS: 232 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 233 if (error) 234 goto out; 235 switch (tmpinfo.play.encoding) { 236 case AUDIO_ENCODING_ULAW: 237 idat = OSS_AFMT_MU_LAW; 238 break; 239 case AUDIO_ENCODING_ALAW: 240 idat = OSS_AFMT_A_LAW; 241 break; 242 case AUDIO_ENCODING_SLINEAR_LE: 243 if (tmpinfo.play.precision == 16) 244 idat = OSS_AFMT_S16_LE; 245 else 246 idat = OSS_AFMT_S8; 247 break; 248 case AUDIO_ENCODING_SLINEAR_BE: 249 if (tmpinfo.play.precision == 16) 250 idat = OSS_AFMT_S16_BE; 251 else 252 idat = OSS_AFMT_S8; 253 break; 254 case AUDIO_ENCODING_ULINEAR_LE: 255 if (tmpinfo.play.precision == 16) 256 idat = OSS_AFMT_U16_LE; 257 else 258 idat = OSS_AFMT_U8; 259 break; 260 case AUDIO_ENCODING_ULINEAR_BE: 261 if (tmpinfo.play.precision == 16) 262 idat = OSS_AFMT_U16_BE; 263 else 264 idat = OSS_AFMT_U8; 265 break; 266 case AUDIO_ENCODING_ADPCM: 267 idat = OSS_AFMT_IMA_ADPCM; 268 break; 269 } 270 error = copyout(&idat, SCARG(uap, data), sizeof idat); 271 if (error) 272 goto out; 273 break; 274 case OSS_SNDCTL_DSP_CHANNELS: 275 AUDIO_INITINFO(&tmpinfo); 276 error = copyin(SCARG(uap, data), &idat, sizeof idat); 277 if (error) 278 goto out; 279 tmpinfo.play.channels = 280 tmpinfo.record.channels = idat; 281 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 282 /* fall into ... */ 283 case OSS_SOUND_PCM_READ_CHANNELS: 284 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 285 if (error) 286 goto out; 287 idat = tmpinfo.play.channels; 288 error = copyout(&idat, SCARG(uap, data), sizeof idat); 289 if (error) 290 goto out; 291 break; 292 case OSS_SOUND_PCM_WRITE_FILTER: 293 case OSS_SOUND_PCM_READ_FILTER: 294 error = EINVAL; /* XXX unimplemented */ 295 goto out; 296 case OSS_SNDCTL_DSP_SUBDIVIDE: 297 error = copyin(SCARG(uap, data), &idat, sizeof idat); 298 if (error) 299 goto out; 300 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 301 setblocksize(fp, &tmpinfo, p); 302 if (error) 303 goto out; 304 if (idat == 0) 305 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 306 idat = (tmpinfo.play.buffer_size / idat) & -4; 307 AUDIO_INITINFO(&tmpinfo); 308 tmpinfo.blocksize = idat; 309 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 310 if (error) 311 goto out; 312 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 313 error = copyout(&idat, SCARG(uap, data), sizeof idat); 314 if (error) 315 goto out; 316 break; 317 case OSS_SNDCTL_DSP_SETFRAGMENT: 318 AUDIO_INITINFO(&tmpinfo); 319 error = copyin(SCARG(uap, data), &idat, sizeof idat); 320 if (error) 321 goto out; 322 if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17) { 323 error = EINVAL; 324 goto out; 325 } 326 tmpinfo.blocksize = 1 << (idat & 0xffff); 327 tmpinfo.hiwat = (idat >> 16) & 0x7fff; 328 DPRINTF(("oss_audio: SETFRAGMENT blksize=%d, hiwat=%d\n", 329 tmpinfo.blocksize, tmpinfo.hiwat)); 330 if (tmpinfo.hiwat == 0) /* 0 means set to max */ 331 tmpinfo.hiwat = 65536; 332 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 333 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 334 if (error) 335 goto out; 336 u = tmpinfo.blocksize; 337 for(idat = 0; u > 1; idat++, u >>= 1) 338 ; 339 idat |= (tmpinfo.hiwat & 0x7fff) << 16; 340 error = copyout(&idat, SCARG(uap, data), sizeof idat); 341 if (error) 342 goto out; 343 break; 344 case OSS_SNDCTL_DSP_GETFMTS: 345 for(idat = 0, tmpenc.index = 0; 346 ioctlf(fp, AUDIO_GETENC, (caddr_t)&tmpenc, p) == 0; 347 tmpenc.index++) { 348 switch(tmpenc.encoding) { 349 case AUDIO_ENCODING_ULAW: 350 idat |= OSS_AFMT_MU_LAW; 351 break; 352 case AUDIO_ENCODING_ALAW: 353 idat |= OSS_AFMT_A_LAW; 354 break; 355 case AUDIO_ENCODING_SLINEAR: 356 idat |= OSS_AFMT_S8; 357 break; 358 case AUDIO_ENCODING_SLINEAR_LE: 359 if (tmpenc.precision == 16) 360 idat |= OSS_AFMT_S16_LE; 361 else 362 idat |= OSS_AFMT_S8; 363 break; 364 case AUDIO_ENCODING_SLINEAR_BE: 365 if (tmpenc.precision == 16) 366 idat |= OSS_AFMT_S16_BE; 367 else 368 idat |= OSS_AFMT_S8; 369 break; 370 case AUDIO_ENCODING_ULINEAR: 371 idat |= OSS_AFMT_U8; 372 break; 373 case AUDIO_ENCODING_ULINEAR_LE: 374 if (tmpenc.precision == 16) 375 idat |= OSS_AFMT_U16_LE; 376 else 377 idat |= OSS_AFMT_U8; 378 break; 379 case AUDIO_ENCODING_ULINEAR_BE: 380 if (tmpenc.precision == 16) 381 idat |= OSS_AFMT_U16_BE; 382 else 383 idat |= OSS_AFMT_U8; 384 break; 385 case AUDIO_ENCODING_ADPCM: 386 idat |= OSS_AFMT_IMA_ADPCM; 387 break; 388 default: 389 break; 390 } 391 } 392 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETFMTS = %x\n", idat)); 393 error = copyout(&idat, SCARG(uap, data), sizeof idat); 394 if (error) 395 goto out; 396 break; 397 case OSS_SNDCTL_DSP_GETOSPACE: 398 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 399 if (error) 400 goto out; 401 setblocksize(fp, &tmpinfo, p); 402 bufinfo.fragsize = tmpinfo.blocksize; 403 bufinfo.fragments = tmpinfo.hiwat - 404 (tmpinfo.play.seek + tmpinfo.blocksize - 1) / 405 tmpinfo.blocksize; 406 bufinfo.fragstotal = tmpinfo.hiwat; 407 bufinfo.bytes = 408 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.play.seek; 409 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 410 if (error) 411 goto out; 412 break; 413 case OSS_SNDCTL_DSP_GETISPACE: 414 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 415 if (error) 416 goto out; 417 setblocksize(fp, &tmpinfo, p); 418 bufinfo.fragsize = tmpinfo.blocksize; 419 bufinfo.fragments = tmpinfo.hiwat - 420 (tmpinfo.record.seek + tmpinfo.blocksize - 1) / 421 tmpinfo.blocksize; 422 bufinfo.fragstotal = tmpinfo.hiwat; 423 bufinfo.bytes = 424 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.record.seek; 425 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETxSPACE = %d %d %d %d\n", 426 bufinfo.fragsize, bufinfo.fragments, 427 bufinfo.fragstotal, bufinfo.bytes)); 428 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 429 if (error) 430 goto out; 431 break; 432 case OSS_SNDCTL_DSP_NONBLOCK: 433 idat = 1; 434 error = ioctlf(fp, FIONBIO, (caddr_t)&idat, p); 435 if (error) 436 goto out; 437 break; 438 case OSS_SNDCTL_DSP_GETCAPS: 439 error = ioctlf(fp, AUDIO_GETPROPS, (caddr_t)&idata, p); 440 if (error) 441 goto out; 442 idat = OSS_DSP_CAP_TRIGGER; /* pretend we have trigger */ 443 if (idata & AUDIO_PROP_FULLDUPLEX) 444 idat |= OSS_DSP_CAP_DUPLEX; 445 if (idata & AUDIO_PROP_MMAP) 446 idat |= OSS_DSP_CAP_MMAP; 447 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETCAPS = %x\n", idat)); 448 error = copyout(&idat, SCARG(uap, data), sizeof idat); 449 if (error) 450 goto out; 451 break; 452 #if 0 453 case OSS_SNDCTL_DSP_GETTRIGGER: 454 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 455 if (error) 456 goto out; 457 idat = (tmpinfo.play.pause ? 0 : OSS_PCM_ENABLE_OUTPUT) | 458 (tmpinfo.record.pause ? 0 : OSS_PCM_ENABLE_INPUT); 459 error = copyout(&idat, SCARG(uap, data), sizeof idat); 460 if (error) 461 goto out; 462 break; 463 case OSS_SNDCTL_DSP_SETTRIGGER: 464 AUDIO_INITINFO(&tmpinfo); 465 error = copyin(SCARG(uap, data), &idat, sizeof idat); 466 if (error) 467 goto out; 468 tmpinfo.play.pause = (idat & OSS_PCM_ENABLE_OUTPUT) == 0; 469 tmpinfo.record.pause = (idat & OSS_PCM_ENABLE_INPUT) == 0; 470 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 471 error = copyout(&idat, SCARG(uap, data), sizeof idat); 472 if (error) 473 goto out; 474 break; 475 #else 476 case OSS_SNDCTL_DSP_GETTRIGGER: 477 case OSS_SNDCTL_DSP_SETTRIGGER: 478 /* XXX Do nothing for now. */ 479 idat = OSS_PCM_ENABLE_OUTPUT; 480 error = copyout(&idat, SCARG(uap, data), sizeof idat); 481 goto out; 482 #endif 483 case OSS_SNDCTL_DSP_GETIPTR: 484 error = ioctlf(fp, AUDIO_GETIOFFS, (caddr_t)&tmpoffs, p); 485 if (error) 486 goto out; 487 cntinfo.bytes = tmpoffs.samples; 488 cntinfo.blocks = tmpoffs.deltablks; 489 cntinfo.ptr = tmpoffs.offset; 490 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 491 if (error) 492 goto out; 493 break; 494 case OSS_SNDCTL_DSP_GETOPTR: 495 error = ioctlf(fp, AUDIO_GETOOFFS, (caddr_t)&tmpoffs, p); 496 if (error) 497 goto out; 498 cntinfo.bytes = tmpoffs.samples; 499 cntinfo.blocks = tmpoffs.deltablks; 500 cntinfo.ptr = tmpoffs.offset; 501 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 502 if (error) 503 goto out; 504 break; 505 case OSS_SNDCTL_DSP_MAPINBUF: 506 case OSS_SNDCTL_DSP_MAPOUTBUF: 507 case OSS_SNDCTL_DSP_SETSYNCRO: 508 case OSS_SNDCTL_DSP_SETDUPLEX: 509 case OSS_SNDCTL_DSP_PROFILE: 510 error = EINVAL; 511 goto out; 512 default: 513 error = EINVAL; 514 goto out; 515 } 516 517 out: 518 FILE_UNUSE(fp, p); 519 return error; 520 } 521 522 /* If the NetBSD mixer device should have more than 32 devices 523 * some will not be available to Linux */ 524 #define NETBSD_MAXDEVS 64 525 struct audiodevinfo { 526 int done; 527 dev_t dev; 528 int16_t devmap[OSS_SOUND_MIXER_NRDEVICES], 529 rdevmap[NETBSD_MAXDEVS]; 530 char names[NETBSD_MAXDEVS][MAX_AUDIO_DEV_LEN]; 531 int enum2opaque[NETBSD_MAXDEVS]; 532 u_long devmask, recmask, stereomask; 533 u_long caps, source; 534 }; 535 536 static int 537 opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq) 538 { 539 int i, o; 540 541 for (i = 0; i < NETBSD_MAXDEVS; i++) { 542 o = di->enum2opaque[i]; 543 if (o == opq) 544 break; 545 if (o == -1 && label != NULL && 546 !strncmp(di->names[i], label->name, sizeof di->names[i])) { 547 di->enum2opaque[i] = opq; 548 break; 549 } 550 } 551 if (i >= NETBSD_MAXDEVS) 552 i = -1; 553 /*printf("opq_to_enum %s %d -> %d\n", label->name, opq, i);*/ 554 return (i); 555 } 556 557 static int 558 enum_to_ord(struct audiodevinfo *di, int enm) 559 { 560 if (enm >= NETBSD_MAXDEVS) 561 return (-1); 562 563 /*printf("enum_to_ord %d -> %d\n", enm, di->enum2opaque[enm]);*/ 564 return (di->enum2opaque[enm]); 565 } 566 567 static int 568 enum_to_mask(struct audiodevinfo *di, int enm) 569 { 570 int m; 571 if (enm >= NETBSD_MAXDEVS) 572 return (0); 573 574 m = di->enum2opaque[enm]; 575 if (m == -1) 576 m = 0; 577 /*printf("enum_to_mask %d -> %d\n", enm, di->enum2opaque[enm]);*/ 578 return (m); 579 } 580 581 /* 582 * Collect the audio device information to allow faster 583 * emulation of the Linux mixer ioctls. Cache the information 584 * to eliminate the overhead of repeating all the ioctls needed 585 * to collect the information. 586 */ 587 static struct audiodevinfo * 588 getdevinfo(fp, p) 589 struct file *fp; 590 struct proc *p; 591 { 592 mixer_devinfo_t mi; 593 int i, j, e; 594 static const struct { 595 const char *name; 596 int code; 597 } *dp, devs[] = { 598 { AudioNmicrophone, OSS_SOUND_MIXER_MIC }, 599 { AudioNline, OSS_SOUND_MIXER_LINE }, 600 { AudioNcd, OSS_SOUND_MIXER_CD }, 601 { AudioNdac, OSS_SOUND_MIXER_PCM }, 602 { AudioNrecord, OSS_SOUND_MIXER_IMIX }, 603 { AudioNmaster, OSS_SOUND_MIXER_VOLUME }, 604 { AudioNtreble, OSS_SOUND_MIXER_TREBLE }, 605 { AudioNbass, OSS_SOUND_MIXER_BASS }, 606 { AudioNspeaker, OSS_SOUND_MIXER_SPEAKER }, 607 /* { AudioNheadphone, ?? },*/ 608 { AudioNoutput, OSS_SOUND_MIXER_OGAIN }, 609 { AudioNinput, OSS_SOUND_MIXER_IGAIN }, 610 /* { AudioNmaster, OSS_SOUND_MIXER_SPEAKER },*/ 611 /* { AudioNstereo, ?? },*/ 612 /* { AudioNmono, ?? },*/ 613 { AudioNfmsynth, OSS_SOUND_MIXER_SYNTH }, 614 /* { AudioNwave, OSS_SOUND_MIXER_PCM },*/ 615 { AudioNmidi, OSS_SOUND_MIXER_SYNTH }, 616 /* { AudioNmixerout, ?? },*/ 617 { 0, -1 } 618 }; 619 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)) = 620 fp->f_ops->fo_ioctl; 621 struct vnode *vp; 622 struct vattr va; 623 static struct audiodevinfo devcache = { 0 }; 624 struct audiodevinfo *di = &devcache; 625 626 /* 627 * Figure out what device it is so we can check if the 628 * cached data is valid. 629 */ 630 vp = (struct vnode *)fp->f_data; 631 if (vp->v_type != VCHR) 632 return 0; 633 if (VOP_GETATTR(vp, &va, p->p_ucred, p)) 634 return 0; 635 if (di->done && di->dev == va.va_rdev) 636 return di; 637 638 di->done = 1; 639 di->dev = va.va_rdev; 640 di->devmask = 0; 641 di->recmask = 0; 642 di->stereomask = 0; 643 di->source = ~0; 644 di->caps = 0; 645 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 646 di->devmap[i] = -1; 647 for(i = 0; i < NETBSD_MAXDEVS; i++) { 648 di->rdevmap[i] = -1; 649 di->names[i][0] = '\0'; 650 di->enum2opaque[i] = -1; 651 } 652 for(i = 0; i < NETBSD_MAXDEVS; i++) { 653 mi.index = i; 654 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0) 655 break; 656 switch(mi.type) { 657 case AUDIO_MIXER_VALUE: 658 for(dp = devs; dp->name; dp++) 659 if (strcmp(dp->name, mi.label.name) == 0) 660 break; 661 if (dp->code >= 0) { 662 di->devmap[dp->code] = i; 663 di->rdevmap[i] = dp->code; 664 di->devmask |= 1 << dp->code; 665 if (mi.un.v.num_channels == 2) 666 di->stereomask |= 1 << dp->code; 667 strncpy(di->names[i], mi.label.name, 668 sizeof di->names[i]); 669 } 670 break; 671 } 672 } 673 for(i = 0; i < NETBSD_MAXDEVS; i++) { 674 mi.index = i; 675 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0) 676 break; 677 if (strcmp(mi.label.name, AudioNsource) != 0) 678 continue; 679 di->source = i; 680 switch(mi.type) { 681 case AUDIO_MIXER_ENUM: 682 for(j = 0; j < mi.un.e.num_mem; j++) { 683 e = opaque_to_enum(di, 684 &mi.un.e.member[j].label, 685 mi.un.e.member[j].ord); 686 if (e >= 0) 687 di->recmask |= 1 << di->rdevmap[e]; 688 } 689 di->caps = OSS_SOUND_CAP_EXCL_INPUT; 690 break; 691 case AUDIO_MIXER_SET: 692 for(j = 0; j < mi.un.s.num_mem; j++) { 693 e = opaque_to_enum(di, 694 &mi.un.s.member[j].label, 695 mi.un.s.member[j].mask); 696 if (e >= 0) 697 di->recmask |= 1 << di->rdevmap[e]; 698 } 699 break; 700 } 701 } 702 return di; 703 } 704 705 int 706 oss_ioctl_mixer(p, uap, retval) 707 struct proc *p; 708 struct oss_sys_ioctl_args /* { 709 syscallarg(int) fd; 710 syscallarg(u_long) com; 711 syscallarg(caddr_t) data; 712 } */ *uap; 713 register_t *retval; 714 { 715 struct file *fp; 716 struct filedesc *fdp; 717 u_long com; 718 struct audiodevinfo *di; 719 mixer_ctrl_t mc; 720 struct oss_mixer_info omi; 721 struct audio_device adev; 722 int idat; 723 int i; 724 int error; 725 int l, r, n, e; 726 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 727 728 fdp = p->p_fd; 729 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 730 return (EBADF); 731 732 FILE_USE(fp); 733 734 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 735 error = EBADF; 736 goto out; 737 } 738 739 com = SCARG(uap, com); 740 DPRINTF(("oss_ioctl_mixer: com=%08lx\n", com)); 741 742 retval[0] = 0; 743 744 di = getdevinfo(fp, p); 745 if (di == 0) { 746 error = EINVAL; 747 goto out; 748 } 749 750 ioctlf = fp->f_ops->fo_ioctl; 751 switch (com) { 752 case OSS_GET_VERSION: 753 idat = OSS_SOUND_VERSION; 754 break; 755 case OSS_SOUND_MIXER_INFO: 756 case OSS_SOUND_OLD_MIXER_INFO: 757 error = ioctlf(fp, AUDIO_GETDEV, (caddr_t)&adev, p); 758 if (error) 759 return (error); 760 omi.modify_counter = 1; 761 strncpy(omi.id, adev.name, sizeof omi.id); 762 strncpy(omi.name, adev.name, sizeof omi.name); 763 return copyout(&omi, SCARG(uap, data), OSS_IOCTL_SIZE(com)); 764 case OSS_SOUND_MIXER_READ_RECSRC: 765 if (di->source == -1) { 766 error = EINVAL; 767 goto out; 768 } 769 mc.dev = di->source; 770 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 771 mc.type = AUDIO_MIXER_ENUM; 772 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 773 if (error) 774 goto out; 775 e = opaque_to_enum(di, NULL, mc.un.ord); 776 if (e >= 0) 777 idat = 1 << di->rdevmap[e]; 778 } else { 779 mc.type = AUDIO_MIXER_SET; 780 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 781 if (error) 782 goto out; 783 e = opaque_to_enum(di, NULL, mc.un.mask); 784 if (e >= 0) 785 idat = 1 << di->rdevmap[e]; 786 } 787 break; 788 case OSS_SOUND_MIXER_READ_DEVMASK: 789 idat = di->devmask; 790 break; 791 case OSS_SOUND_MIXER_READ_RECMASK: 792 idat = di->recmask; 793 break; 794 case OSS_SOUND_MIXER_READ_STEREODEVS: 795 idat = di->stereomask; 796 break; 797 case OSS_SOUND_MIXER_READ_CAPS: 798 idat = di->caps; 799 break; 800 case OSS_SOUND_MIXER_WRITE_RECSRC: 801 case OSS_SOUND_MIXER_WRITE_R_RECSRC: 802 if (di->source == -1) { 803 error = EINVAL; 804 goto out; 805 } 806 mc.dev = di->source; 807 error = copyin(SCARG(uap, data), &idat, sizeof idat); 808 if (error) 809 goto out; 810 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 811 mc.type = AUDIO_MIXER_ENUM; 812 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 813 if (idat & (1 << i)) 814 break; 815 if (i >= OSS_SOUND_MIXER_NRDEVICES || 816 di->devmap[i] == -1) 817 return EINVAL; 818 mc.un.ord = enum_to_ord(di, di->devmap[i]); 819 } else { 820 mc.type = AUDIO_MIXER_SET; 821 mc.un.mask = 0; 822 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) { 823 if (idat & (1 << i)) { 824 if (di->devmap[i] == -1) 825 return EINVAL; 826 mc.un.mask |= enum_to_mask(di, di->devmap[i]); 827 } 828 } 829 } 830 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p); 831 goto out; 832 default: 833 if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com && 834 com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) { 835 n = OSS_GET_DEV(com); 836 if (di->devmap[n] == -1) { 837 error = EINVAL; 838 goto out; 839 } 840 doread: 841 mc.dev = di->devmap[n]; 842 mc.type = AUDIO_MIXER_VALUE; 843 mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1; 844 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 845 if (error) 846 goto out; 847 if (mc.un.value.num_channels != 2) { 848 l = r = mc.un.value.level[AUDIO_MIXER_LEVEL_MONO]; 849 } else { 850 l = mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT]; 851 r = mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT]; 852 } 853 idat = TO_OSSVOL(l) | (TO_OSSVOL(r) << 8); 854 DPRINTF(("OSS_MIXER_READ n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 855 n, di->devmap[n], l, r, idat)); 856 break; 857 } else if ((OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_FIRST) <= com && 858 com < OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_NRDEVICES)) || 859 (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 860 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES))) { 861 n = OSS_GET_DEV(com); 862 if (di->devmap[n] == -1) { 863 error = EINVAL; 864 goto out; 865 } 866 error = copyin(SCARG(uap, data), &idat, sizeof idat); 867 if (error) 868 goto out; 869 l = FROM_OSSVOL( idat & 0xff); 870 r = FROM_OSSVOL((idat >> 8) & 0xff); 871 mc.dev = di->devmap[n]; 872 mc.type = AUDIO_MIXER_VALUE; 873 if (di->stereomask & (1<<n)) { 874 mc.un.value.num_channels = 2; 875 mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l; 876 mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r; 877 } else { 878 mc.un.value.num_channels = 1; 879 mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r)/2; 880 } 881 DPRINTF(("OSS_MIXER_WRITE n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 882 n, di->devmap[n], l, r, idat)); 883 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p); 884 if (error) 885 goto out; 886 if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 887 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) { 888 error = 0; 889 goto out; 890 } 891 goto doread; 892 } else { 893 #ifdef AUDIO_DEBUG 894 printf("oss_audio: unknown mixer ioctl %04lx\n", com); 895 #endif 896 error = EINVAL; 897 goto out; 898 } 899 } 900 error = copyout(&idat, SCARG(uap, data), sizeof idat); 901 out: 902 FILE_UNUSE(fp, p); 903 return error; 904 } 905 906 /* Sequencer emulation */ 907 int 908 oss_ioctl_sequencer(p, uap, retval) 909 struct proc *p; 910 struct oss_sys_ioctl_args /* { 911 syscallarg(int) fd; 912 syscallarg(u_long) com; 913 syscallarg(caddr_t) data; 914 } */ *uap; 915 register_t *retval; 916 { 917 struct file *fp; 918 struct filedesc *fdp; 919 u_long com; 920 int idat, idat1; 921 struct synth_info si; 922 struct oss_synth_info osi; 923 struct oss_seq_event_rec oser; 924 int error; 925 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 926 927 fdp = p->p_fd; 928 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 929 return (EBADF); 930 931 FILE_USE(fp); 932 933 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 934 error = EBADF; 935 goto out; 936 } 937 938 com = SCARG(uap, com); 939 DPRINTF(("oss_ioctl_sequencer: com=%08lx\n", com)); 940 941 retval[0] = 0; 942 943 ioctlf = fp->f_ops->fo_ioctl; 944 switch (com) { 945 case OSS_SEQ_RESET: 946 error = ioctlf(fp, SEQUENCER_RESET, (caddr_t)&idat, p); 947 goto out; 948 case OSS_SEQ_SYNC: 949 error = ioctlf(fp, SEQUENCER_SYNC, (caddr_t)&idat, p); 950 goto out; 951 case OSS_SYNTH_INFO: 952 error = copyin(SCARG(uap, data), &osi, sizeof osi); 953 if (error) 954 goto out; 955 si.device = osi.device; 956 error = ioctlf(fp, SEQUENCER_INFO, (caddr_t)&si, p); 957 if (error) 958 goto out; 959 strncpy(osi.name, si.name, sizeof osi.name); 960 osi.device = si.device; 961 switch(si.synth_type) { 962 case SYNTH_TYPE_FM: 963 osi.synth_type = OSS_SYNTH_TYPE_FM; break; 964 case SYNTH_TYPE_SAMPLE: 965 osi.synth_type = OSS_SYNTH_TYPE_SAMPLE; break; 966 case SYNTH_TYPE_MIDI: 967 osi.synth_type = OSS_SYNTH_TYPE_MIDI; break; 968 default: 969 osi.synth_type = 0; break; 970 } 971 switch(si.synth_subtype) { 972 case SYNTH_SUB_FM_TYPE_ADLIB: 973 osi.synth_subtype = OSS_FM_TYPE_ADLIB; break; 974 case SYNTH_SUB_FM_TYPE_OPL3: 975 osi.synth_subtype = OSS_FM_TYPE_OPL3; break; 976 case SYNTH_SUB_MIDI_TYPE_MPU401: 977 osi.synth_subtype = OSS_MIDI_TYPE_MPU401; break; 978 case SYNTH_SUB_SAMPLE_TYPE_BASIC: 979 osi.synth_subtype = OSS_SAMPLE_TYPE_BASIC; break; 980 default: 981 osi.synth_subtype = 0; break; 982 } 983 osi.perc_mode = 0; 984 osi.nr_voices = si.nr_voices; 985 osi.nr_drums = 0; 986 osi.instr_bank_size = si.instr_bank_size; 987 osi.capabilities = 0; 988 if (si.capabilities & SYNTH_CAP_OPL3) 989 osi.capabilities |= OSS_SYNTH_CAP_OPL3; 990 if (si.capabilities & SYNTH_CAP_INPUT) 991 osi.capabilities |= OSS_SYNTH_CAP_INPUT; 992 error = copyout(&osi, SCARG(uap, data), sizeof osi); 993 goto out; 994 case OSS_SEQ_CTRLRATE: 995 error = copyin(SCARG(uap, data), &idat, sizeof idat); 996 if (error) 997 goto out; 998 error = ioctlf(fp, SEQUENCER_CTRLRATE, (caddr_t)&idat, p); 999 if (error) 1000 goto out; 1001 retval[0] = idat; 1002 break; 1003 case OSS_SEQ_GETOUTCOUNT: 1004 error = ioctlf(fp, SEQUENCER_GETOUTCOUNT, (caddr_t)&idat, p); 1005 if (error) 1006 goto out; 1007 retval[0] = idat; 1008 break; 1009 case OSS_SEQ_GETINCOUNT: 1010 error = ioctlf(fp, SEQUENCER_GETINCOUNT, (caddr_t)&idat, p); 1011 if (error) 1012 goto out; 1013 retval[0] = idat; 1014 break; 1015 case OSS_SEQ_NRSYNTHS: 1016 error = ioctlf(fp, SEQUENCER_NRSYNTHS, (caddr_t)&idat, p); 1017 if (error) 1018 goto out; 1019 retval[0] = idat; 1020 break; 1021 case OSS_SEQ_NRMIDIS: 1022 error = ioctlf(fp, SEQUENCER_NRMIDIS, (caddr_t)&idat, p); 1023 if (error) 1024 goto out; 1025 retval[0] = idat; 1026 break; 1027 case OSS_SEQ_THRESHOLD: 1028 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1029 if (error) 1030 goto out; 1031 error = ioctlf(fp, SEQUENCER_THRESHOLD, (caddr_t)&idat, p); 1032 goto out; 1033 case OSS_MEMAVL: 1034 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1035 if (error) 1036 goto out; 1037 error = ioctlf(fp, SEQUENCER_MEMAVL, (caddr_t)&idat, p); 1038 if (error) 1039 goto out; 1040 retval[0] = idat; 1041 break; 1042 case OSS_SEQ_PANIC: 1043 error = ioctlf(fp, SEQUENCER_PANIC, (caddr_t)&idat, p); 1044 goto out; 1045 case OSS_SEQ_OUTOFBAND: 1046 error = copyin(SCARG(uap, data), &oser, sizeof oser); 1047 if (error) 1048 goto out; 1049 error = ioctlf(fp, SEQUENCER_OUTOFBAND, (caddr_t)&oser, p); 1050 if (error) 1051 goto out; 1052 break; 1053 case OSS_SEQ_GETTIME: 1054 error = ioctlf(fp, SEQUENCER_GETTIME, (caddr_t)&idat, p); 1055 if (error) 1056 goto out; 1057 retval[0] = idat; 1058 break; 1059 case OSS_TMR_TIMEBASE: 1060 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1061 if (error) 1062 goto out; 1063 error = ioctlf(fp, SEQUENCER_TMR_TIMEBASE, (caddr_t)&idat, p); 1064 if (error) 1065 goto out; 1066 retval[0] = idat; 1067 break; 1068 case OSS_TMR_START: 1069 error = ioctlf(fp, SEQUENCER_TMR_START, (caddr_t)&idat, p); 1070 goto out; 1071 case OSS_TMR_STOP: 1072 error = ioctlf(fp, SEQUENCER_TMR_STOP, (caddr_t)&idat, p); 1073 goto out; 1074 case OSS_TMR_CONTINUE: 1075 error = ioctlf(fp, SEQUENCER_TMR_CONTINUE, (caddr_t)&idat, p); 1076 goto out; 1077 case OSS_TMR_TEMPO: 1078 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1079 if (error) 1080 goto out; 1081 error = ioctlf(fp, SEQUENCER_TMR_TEMPO, (caddr_t)&idat, p); 1082 if (error) 1083 goto out; 1084 retval[0] = idat; 1085 break; 1086 case OSS_TMR_SOURCE: 1087 error = copyin(SCARG(uap, data), &idat1, sizeof idat); 1088 if (error) 1089 goto out; 1090 idat = 0; 1091 if (idat1 & OSS_TMR_INTERNAL) idat |= SEQUENCER_TMR_INTERNAL; 1092 error = ioctlf(fp, SEQUENCER_TMR_SOURCE, (caddr_t)&idat, p); 1093 if (error) 1094 goto out; 1095 idat1 = idat; 1096 if (idat1 & SEQUENCER_TMR_INTERNAL) idat |= OSS_TMR_INTERNAL; 1097 retval[0] = idat; 1098 break; 1099 case OSS_TMR_METRONOME: 1100 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1101 if (error) 1102 goto out; 1103 error = ioctlf(fp, SEQUENCER_TMR_METRONOME, (caddr_t)&idat, p); 1104 goto out; 1105 case OSS_TMR_SELECT: 1106 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1107 if (error) 1108 goto out; 1109 retval[0] = idat; 1110 error = ioctlf(fp, SEQUENCER_TMR_SELECT, (caddr_t)&idat, p); 1111 goto out; 1112 default: 1113 error = EINVAL; 1114 goto out; 1115 } 1116 1117 error = copyout(&idat, SCARG(uap, data), sizeof idat); 1118 out: 1119 FILE_UNUSE(fp, p); 1120 return error; 1121 } 1122 1123 /* 1124 * Check that the blocksize is a power of 2 as OSS wants. 1125 * If not, set it to be. 1126 */ 1127 static void 1128 setblocksize(fp, info, p) 1129 struct file *fp; 1130 struct audio_info *info; 1131 struct proc *p; 1132 { 1133 struct audio_info set; 1134 int s; 1135 1136 if (info->blocksize & (info->blocksize-1)) { 1137 for(s = 32; s < info->blocksize; s <<= 1) 1138 ; 1139 AUDIO_INITINFO(&set); 1140 set.blocksize = s; 1141 fp->f_ops->fo_ioctl(fp, AUDIO_SETINFO, (caddr_t)&set, p); 1142 fp->f_ops->fo_ioctl(fp, AUDIO_GETINFO, (caddr_t)info, p); 1143 } 1144 } 1145
Indexes created Tue Sep 23 23:09:58 GMT 2025