ossaudio.c revision 1.38
1 /* $NetBSD: ossaudio.c,v 1.38 2001/11/13 02:09:17 lukem 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 1.38 2001/11/13 02:09:17 lukem 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 proc *)); 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 proc *)); 72 73 74 int 75 oss_ioctl_audio(p, uap, retval) 76 struct proc *p; 77 struct oss_sys_ioctl_args /* { 78 syscallarg(int) fd; 79 syscallarg(u_long) com; 80 syscallarg(caddr_t) data; 81 } */ *uap; 82 register_t *retval; 83 { 84 struct file *fp; 85 struct filedesc *fdp; 86 u_long com; 87 struct audio_info tmpinfo; 88 struct audio_offset tmpoffs; 89 struct oss_audio_buf_info bufinfo; 90 struct oss_count_info cntinfo; 91 struct audio_encoding tmpenc; 92 u_int u; 93 int idat, idata; 94 int error = 0; 95 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 96 97 fdp = p->p_fd; 98 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 99 return (EBADF); 100 101 FILE_USE(fp); 102 103 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 104 error = EBADF; 105 goto out; 106 } 107 108 com = SCARG(uap, com); 109 DPRINTF(("oss_ioctl_audio: com=%08lx\n", com)); 110 111 retval[0] = 0; 112 113 ioctlf = fp->f_ops->fo_ioctl; 114 switch (com) { 115 case OSS_SNDCTL_DSP_RESET: 116 error = ioctlf(fp, AUDIO_FLUSH, (caddr_t)0, p); 117 if (error) 118 goto out; 119 break; 120 case OSS_SNDCTL_DSP_SYNC: 121 case OSS_SNDCTL_DSP_POST: 122 error = ioctlf(fp, AUDIO_DRAIN, (caddr_t)0, p); 123 if (error) 124 goto out; 125 break; 126 case OSS_SNDCTL_DSP_SPEED: 127 AUDIO_INITINFO(&tmpinfo); 128 error = copyin(SCARG(uap, data), &idat, sizeof idat); 129 if (error) 130 goto out; 131 tmpinfo.play.sample_rate = 132 tmpinfo.record.sample_rate = idat; 133 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 134 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_SPEED %d = %d\n", 135 idat, error)); 136 if (error) 137 goto out; 138 /* fall into ... */ 139 case OSS_SOUND_PCM_READ_RATE: 140 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 141 if (error) 142 goto out; 143 idat = tmpinfo.play.sample_rate; 144 error = copyout(&idat, SCARG(uap, data), sizeof idat); 145 if (error) 146 goto out; 147 break; 148 case OSS_SNDCTL_DSP_STEREO: 149 AUDIO_INITINFO(&tmpinfo); 150 error = copyin(SCARG(uap, data), &idat, sizeof idat); 151 if (error) 152 goto out; 153 tmpinfo.play.channels = 154 tmpinfo.record.channels = idat ? 2 : 1; 155 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 156 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 157 if (error) 158 goto out; 159 idat = tmpinfo.play.channels - 1; 160 error = copyout(&idat, SCARG(uap, data), sizeof idat); 161 if (error) 162 goto out; 163 break; 164 case OSS_SNDCTL_DSP_GETBLKSIZE: 165 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 166 if (error) 167 goto out; 168 setblocksize(fp, &tmpinfo, p); 169 idat = tmpinfo.blocksize; 170 error = copyout(&idat, SCARG(uap, data), sizeof idat); 171 if (error) 172 goto out; 173 break; 174 case OSS_SNDCTL_DSP_SETFMT: 175 AUDIO_INITINFO(&tmpinfo); 176 error = copyin(SCARG(uap, data), &idat, sizeof idat); 177 if (error) 178 goto out; 179 switch (idat) { 180 case OSS_AFMT_MU_LAW: 181 tmpinfo.play.precision = 182 tmpinfo.record.precision = 8; 183 tmpinfo.play.encoding = 184 tmpinfo.record.encoding = AUDIO_ENCODING_ULAW; 185 break; 186 case OSS_AFMT_A_LAW: 187 tmpinfo.play.precision = 188 tmpinfo.record.precision = 8; 189 tmpinfo.play.encoding = 190 tmpinfo.record.encoding = AUDIO_ENCODING_ALAW; 191 break; 192 case OSS_AFMT_U8: 193 tmpinfo.play.precision = 194 tmpinfo.record.precision = 8; 195 tmpinfo.play.encoding = 196 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR; 197 break; 198 case OSS_AFMT_S8: 199 tmpinfo.play.precision = 200 tmpinfo.record.precision = 8; 201 tmpinfo.play.encoding = 202 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR; 203 break; 204 case OSS_AFMT_S16_LE: 205 tmpinfo.play.precision = 206 tmpinfo.record.precision = 16; 207 tmpinfo.play.encoding = 208 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_LE; 209 break; 210 case OSS_AFMT_S16_BE: 211 tmpinfo.play.precision = 212 tmpinfo.record.precision = 16; 213 tmpinfo.play.encoding = 214 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_BE; 215 break; 216 case OSS_AFMT_U16_LE: 217 tmpinfo.play.precision = 218 tmpinfo.record.precision = 16; 219 tmpinfo.play.encoding = 220 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_LE; 221 break; 222 case OSS_AFMT_U16_BE: 223 tmpinfo.play.precision = 224 tmpinfo.record.precision = 16; 225 tmpinfo.play.encoding = 226 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_BE; 227 break; 228 default: 229 error = EINVAL; 230 goto out; 231 } 232 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 233 /* fall into ... */ 234 case OSS_SOUND_PCM_READ_BITS: 235 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 236 if (error) 237 goto out; 238 switch (tmpinfo.play.encoding) { 239 case AUDIO_ENCODING_ULAW: 240 idat = OSS_AFMT_MU_LAW; 241 break; 242 case AUDIO_ENCODING_ALAW: 243 idat = OSS_AFMT_A_LAW; 244 break; 245 case AUDIO_ENCODING_SLINEAR_LE: 246 if (tmpinfo.play.precision == 16) 247 idat = OSS_AFMT_S16_LE; 248 else 249 idat = OSS_AFMT_S8; 250 break; 251 case AUDIO_ENCODING_SLINEAR_BE: 252 if (tmpinfo.play.precision == 16) 253 idat = OSS_AFMT_S16_BE; 254 else 255 idat = OSS_AFMT_S8; 256 break; 257 case AUDIO_ENCODING_ULINEAR_LE: 258 if (tmpinfo.play.precision == 16) 259 idat = OSS_AFMT_U16_LE; 260 else 261 idat = OSS_AFMT_U8; 262 break; 263 case AUDIO_ENCODING_ULINEAR_BE: 264 if (tmpinfo.play.precision == 16) 265 idat = OSS_AFMT_U16_BE; 266 else 267 idat = OSS_AFMT_U8; 268 break; 269 case AUDIO_ENCODING_ADPCM: 270 idat = OSS_AFMT_IMA_ADPCM; 271 break; 272 } 273 error = copyout(&idat, SCARG(uap, data), sizeof idat); 274 if (error) 275 goto out; 276 break; 277 case OSS_SNDCTL_DSP_CHANNELS: 278 AUDIO_INITINFO(&tmpinfo); 279 error = copyin(SCARG(uap, data), &idat, sizeof idat); 280 if (error) 281 goto out; 282 tmpinfo.play.channels = 283 tmpinfo.record.channels = idat; 284 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 285 /* fall into ... */ 286 case OSS_SOUND_PCM_READ_CHANNELS: 287 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 288 if (error) 289 goto out; 290 idat = tmpinfo.play.channels; 291 error = copyout(&idat, SCARG(uap, data), sizeof idat); 292 if (error) 293 goto out; 294 break; 295 case OSS_SOUND_PCM_WRITE_FILTER: 296 case OSS_SOUND_PCM_READ_FILTER: 297 error = EINVAL; /* XXX unimplemented */ 298 goto out; 299 case OSS_SNDCTL_DSP_SUBDIVIDE: 300 error = copyin(SCARG(uap, data), &idat, sizeof idat); 301 if (error) 302 goto out; 303 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 304 setblocksize(fp, &tmpinfo, p); 305 if (error) 306 goto out; 307 if (idat == 0) 308 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 309 idat = (tmpinfo.play.buffer_size / idat) & -4; 310 AUDIO_INITINFO(&tmpinfo); 311 tmpinfo.blocksize = idat; 312 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 313 if (error) 314 goto out; 315 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 316 error = copyout(&idat, SCARG(uap, data), sizeof idat); 317 if (error) 318 goto out; 319 break; 320 case OSS_SNDCTL_DSP_SETFRAGMENT: 321 AUDIO_INITINFO(&tmpinfo); 322 error = copyin(SCARG(uap, data), &idat, sizeof idat); 323 if (error) 324 goto out; 325 if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17) { 326 error = EINVAL; 327 goto out; 328 } 329 tmpinfo.blocksize = 1 << (idat & 0xffff); 330 tmpinfo.hiwat = (idat >> 16) & 0x7fff; 331 DPRINTF(("oss_audio: SETFRAGMENT blksize=%d, hiwat=%d\n", 332 tmpinfo.blocksize, tmpinfo.hiwat)); 333 if (tmpinfo.hiwat == 0) /* 0 means set to max */ 334 tmpinfo.hiwat = 65536; 335 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 336 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 337 if (error) 338 goto out; 339 u = tmpinfo.blocksize; 340 for(idat = 0; u > 1; idat++, u >>= 1) 341 ; 342 idat |= (tmpinfo.hiwat & 0x7fff) << 16; 343 error = copyout(&idat, SCARG(uap, data), sizeof idat); 344 if (error) 345 goto out; 346 break; 347 case OSS_SNDCTL_DSP_GETFMTS: 348 for(idat = 0, tmpenc.index = 0; 349 ioctlf(fp, AUDIO_GETENC, (caddr_t)&tmpenc, p) == 0; 350 tmpenc.index++) { 351 switch(tmpenc.encoding) { 352 case AUDIO_ENCODING_ULAW: 353 idat |= OSS_AFMT_MU_LAW; 354 break; 355 case AUDIO_ENCODING_ALAW: 356 idat |= OSS_AFMT_A_LAW; 357 break; 358 case AUDIO_ENCODING_SLINEAR: 359 idat |= OSS_AFMT_S8; 360 break; 361 case AUDIO_ENCODING_SLINEAR_LE: 362 if (tmpenc.precision == 16) 363 idat |= OSS_AFMT_S16_LE; 364 else 365 idat |= OSS_AFMT_S8; 366 break; 367 case AUDIO_ENCODING_SLINEAR_BE: 368 if (tmpenc.precision == 16) 369 idat |= OSS_AFMT_S16_BE; 370 else 371 idat |= OSS_AFMT_S8; 372 break; 373 case AUDIO_ENCODING_ULINEAR: 374 idat |= OSS_AFMT_U8; 375 break; 376 case AUDIO_ENCODING_ULINEAR_LE: 377 if (tmpenc.precision == 16) 378 idat |= OSS_AFMT_U16_LE; 379 else 380 idat |= OSS_AFMT_U8; 381 break; 382 case AUDIO_ENCODING_ULINEAR_BE: 383 if (tmpenc.precision == 16) 384 idat |= OSS_AFMT_U16_BE; 385 else 386 idat |= OSS_AFMT_U8; 387 break; 388 case AUDIO_ENCODING_ADPCM: 389 idat |= OSS_AFMT_IMA_ADPCM; 390 break; 391 default: 392 break; 393 } 394 } 395 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETFMTS = %x\n", idat)); 396 error = copyout(&idat, SCARG(uap, data), sizeof idat); 397 if (error) 398 goto out; 399 break; 400 case OSS_SNDCTL_DSP_GETOSPACE: 401 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 402 if (error) 403 goto out; 404 setblocksize(fp, &tmpinfo, p); 405 bufinfo.fragsize = tmpinfo.blocksize; 406 bufinfo.fragments = tmpinfo.hiwat - 407 (tmpinfo.play.seek + tmpinfo.blocksize - 1) / 408 tmpinfo.blocksize; 409 bufinfo.fragstotal = tmpinfo.hiwat; 410 bufinfo.bytes = 411 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.play.seek; 412 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 413 if (error) 414 goto out; 415 break; 416 case OSS_SNDCTL_DSP_GETISPACE: 417 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 418 if (error) 419 goto out; 420 setblocksize(fp, &tmpinfo, p); 421 bufinfo.fragsize = tmpinfo.blocksize; 422 bufinfo.fragments = tmpinfo.hiwat - 423 (tmpinfo.record.seek + tmpinfo.blocksize - 1) / 424 tmpinfo.blocksize; 425 bufinfo.fragstotal = tmpinfo.hiwat; 426 bufinfo.bytes = 427 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.record.seek; 428 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETxSPACE = %d %d %d %d\n", 429 bufinfo.fragsize, bufinfo.fragments, 430 bufinfo.fragstotal, bufinfo.bytes)); 431 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 432 if (error) 433 goto out; 434 break; 435 case OSS_SNDCTL_DSP_NONBLOCK: 436 idat = 1; 437 error = ioctlf(fp, FIONBIO, (caddr_t)&idat, p); 438 if (error) 439 goto out; 440 break; 441 case OSS_SNDCTL_DSP_GETCAPS: 442 error = ioctlf(fp, AUDIO_GETPROPS, (caddr_t)&idata, p); 443 if (error) 444 goto out; 445 idat = OSS_DSP_CAP_TRIGGER; /* pretend we have trigger */ 446 if (idata & AUDIO_PROP_FULLDUPLEX) 447 idat |= OSS_DSP_CAP_DUPLEX; 448 if (idata & AUDIO_PROP_MMAP) 449 idat |= OSS_DSP_CAP_MMAP; 450 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETCAPS = %x\n", idat)); 451 error = copyout(&idat, SCARG(uap, data), sizeof idat); 452 if (error) 453 goto out; 454 break; 455 #if 0 456 case OSS_SNDCTL_DSP_GETTRIGGER: 457 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 458 if (error) 459 goto out; 460 idat = (tmpinfo.play.pause ? 0 : OSS_PCM_ENABLE_OUTPUT) | 461 (tmpinfo.record.pause ? 0 : OSS_PCM_ENABLE_INPUT); 462 error = copyout(&idat, SCARG(uap, data), sizeof idat); 463 if (error) 464 goto out; 465 break; 466 case OSS_SNDCTL_DSP_SETTRIGGER: 467 AUDIO_INITINFO(&tmpinfo); 468 error = copyin(SCARG(uap, data), &idat, sizeof idat); 469 if (error) 470 goto out; 471 tmpinfo.play.pause = (idat & OSS_PCM_ENABLE_OUTPUT) == 0; 472 tmpinfo.record.pause = (idat & OSS_PCM_ENABLE_INPUT) == 0; 473 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 474 error = copyout(&idat, SCARG(uap, data), sizeof idat); 475 if (error) 476 goto out; 477 break; 478 #else 479 case OSS_SNDCTL_DSP_GETTRIGGER: 480 case OSS_SNDCTL_DSP_SETTRIGGER: 481 /* XXX Do nothing for now. */ 482 idat = OSS_PCM_ENABLE_OUTPUT; 483 error = copyout(&idat, SCARG(uap, data), sizeof idat); 484 goto out; 485 #endif 486 case OSS_SNDCTL_DSP_GETIPTR: 487 error = ioctlf(fp, AUDIO_GETIOFFS, (caddr_t)&tmpoffs, p); 488 if (error) 489 goto out; 490 cntinfo.bytes = tmpoffs.samples; 491 cntinfo.blocks = tmpoffs.deltablks; 492 cntinfo.ptr = tmpoffs.offset; 493 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 494 if (error) 495 goto out; 496 break; 497 case OSS_SNDCTL_DSP_GETOPTR: 498 error = ioctlf(fp, AUDIO_GETOOFFS, (caddr_t)&tmpoffs, p); 499 if (error) 500 goto out; 501 cntinfo.bytes = tmpoffs.samples; 502 cntinfo.blocks = tmpoffs.deltablks; 503 cntinfo.ptr = tmpoffs.offset; 504 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 505 if (error) 506 goto out; 507 break; 508 case OSS_SNDCTL_DSP_MAPINBUF: 509 case OSS_SNDCTL_DSP_MAPOUTBUF: 510 case OSS_SNDCTL_DSP_SETSYNCRO: 511 case OSS_SNDCTL_DSP_SETDUPLEX: 512 case OSS_SNDCTL_DSP_PROFILE: 513 error = EINVAL; 514 goto out; 515 default: 516 error = EINVAL; 517 goto out; 518 } 519 520 out: 521 FILE_UNUSE(fp, p); 522 return error; 523 } 524 525 /* If the NetBSD mixer device should have more than 32 devices 526 * some will not be available to Linux */ 527 #define NETBSD_MAXDEVS 64 528 struct audiodevinfo { 529 int done; 530 dev_t dev; 531 int16_t devmap[OSS_SOUND_MIXER_NRDEVICES], 532 rdevmap[NETBSD_MAXDEVS]; 533 char names[NETBSD_MAXDEVS][MAX_AUDIO_DEV_LEN]; 534 int enum2opaque[NETBSD_MAXDEVS]; 535 u_long devmask, recmask, stereomask; 536 u_long caps, source; 537 }; 538 539 static int 540 opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq) 541 { 542 int i, o; 543 544 for (i = 0; i < NETBSD_MAXDEVS; i++) { 545 o = di->enum2opaque[i]; 546 if (o == opq) 547 break; 548 if (o == -1 && label != NULL && 549 !strncmp(di->names[i], label->name, sizeof di->names[i])) { 550 di->enum2opaque[i] = opq; 551 break; 552 } 553 } 554 if (i >= NETBSD_MAXDEVS) 555 i = -1; 556 /*printf("opq_to_enum %s %d -> %d\n", label->name, opq, i);*/ 557 return (i); 558 } 559 560 static int 561 enum_to_ord(struct audiodevinfo *di, int enm) 562 { 563 if (enm >= NETBSD_MAXDEVS) 564 return (-1); 565 566 /*printf("enum_to_ord %d -> %d\n", enm, di->enum2opaque[enm]);*/ 567 return (di->enum2opaque[enm]); 568 } 569 570 static int 571 enum_to_mask(struct audiodevinfo *di, int enm) 572 { 573 int m; 574 if (enm >= NETBSD_MAXDEVS) 575 return (0); 576 577 m = di->enum2opaque[enm]; 578 if (m == -1) 579 m = 0; 580 /*printf("enum_to_mask %d -> %d\n", enm, di->enum2opaque[enm]);*/ 581 return (m); 582 } 583 584 /* 585 * Collect the audio device information to allow faster 586 * emulation of the Linux mixer ioctls. Cache the information 587 * to eliminate the overhead of repeating all the ioctls needed 588 * to collect the information. 589 */ 590 static struct audiodevinfo * 591 getdevinfo(fp, p) 592 struct file *fp; 593 struct proc *p; 594 { 595 mixer_devinfo_t mi; 596 int i, j, e; 597 static const struct { 598 const char *name; 599 int code; 600 } *dp, devs[] = { 601 { AudioNmicrophone, OSS_SOUND_MIXER_MIC }, 602 { AudioNline, OSS_SOUND_MIXER_LINE }, 603 { AudioNcd, OSS_SOUND_MIXER_CD }, 604 { AudioNdac, OSS_SOUND_MIXER_PCM }, 605 { AudioNaux, OSS_SOUND_MIXER_LINE1 }, 606 { AudioNrecord, OSS_SOUND_MIXER_IMIX }, 607 { AudioNmaster, OSS_SOUND_MIXER_VOLUME }, 608 { AudioNtreble, OSS_SOUND_MIXER_TREBLE }, 609 { AudioNbass, OSS_SOUND_MIXER_BASS }, 610 { AudioNspeaker, OSS_SOUND_MIXER_SPEAKER }, 611 /* { AudioNheadphone, ?? },*/ 612 { AudioNoutput, OSS_SOUND_MIXER_OGAIN }, 613 { AudioNinput, OSS_SOUND_MIXER_IGAIN }, 614 /* { AudioNmaster, OSS_SOUND_MIXER_SPEAKER },*/ 615 /* { AudioNstereo, ?? },*/ 616 /* { AudioNmono, ?? },*/ 617 { AudioNfmsynth, OSS_SOUND_MIXER_SYNTH }, 618 /* { AudioNwave, OSS_SOUND_MIXER_PCM },*/ 619 { AudioNmidi, OSS_SOUND_MIXER_SYNTH }, 620 /* { AudioNmixerout, ?? },*/ 621 { 0, -1 } 622 }; 623 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)) = 624 fp->f_ops->fo_ioctl; 625 struct vnode *vp; 626 struct vattr va; 627 static struct audiodevinfo devcache = { 0 }; 628 struct audiodevinfo *di = &devcache; 629 630 /* 631 * Figure out what device it is so we can check if the 632 * cached data is valid. 633 */ 634 vp = (struct vnode *)fp->f_data; 635 if (vp->v_type != VCHR) 636 return 0; 637 if (VOP_GETATTR(vp, &va, p->p_ucred, p)) 638 return 0; 639 if (di->done && di->dev == va.va_rdev) 640 return di; 641 642 di->done = 1; 643 di->dev = va.va_rdev; 644 di->devmask = 0; 645 di->recmask = 0; 646 di->stereomask = 0; 647 di->source = ~0; 648 di->caps = 0; 649 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 650 di->devmap[i] = -1; 651 for(i = 0; i < NETBSD_MAXDEVS; i++) { 652 di->rdevmap[i] = -1; 653 di->names[i][0] = '\0'; 654 di->enum2opaque[i] = -1; 655 } 656 for(i = 0; i < NETBSD_MAXDEVS; i++) { 657 mi.index = i; 658 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0) 659 break; 660 switch(mi.type) { 661 case AUDIO_MIXER_VALUE: 662 for(dp = devs; dp->name; dp++) 663 if (strcmp(dp->name, mi.label.name) == 0) 664 break; 665 if (dp->code >= 0) { 666 di->devmap[dp->code] = i; 667 di->rdevmap[i] = dp->code; 668 di->devmask |= 1 << dp->code; 669 if (mi.un.v.num_channels == 2) 670 di->stereomask |= 1 << dp->code; 671 strncpy(di->names[i], mi.label.name, 672 sizeof di->names[i]); 673 } 674 break; 675 } 676 } 677 for(i = 0; i < NETBSD_MAXDEVS; i++) { 678 mi.index = i; 679 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0) 680 break; 681 if (strcmp(mi.label.name, AudioNsource) != 0) 682 continue; 683 di->source = i; 684 switch(mi.type) { 685 case AUDIO_MIXER_ENUM: 686 for(j = 0; j < mi.un.e.num_mem; j++) { 687 e = opaque_to_enum(di, 688 &mi.un.e.member[j].label, 689 mi.un.e.member[j].ord); 690 if (e >= 0) 691 di->recmask |= 1 << di->rdevmap[e]; 692 } 693 di->caps = OSS_SOUND_CAP_EXCL_INPUT; 694 break; 695 case AUDIO_MIXER_SET: 696 for(j = 0; j < mi.un.s.num_mem; j++) { 697 e = opaque_to_enum(di, 698 &mi.un.s.member[j].label, 699 mi.un.s.member[j].mask); 700 if (e >= 0) 701 di->recmask |= 1 << di->rdevmap[e]; 702 } 703 break; 704 } 705 } 706 return di; 707 } 708 709 int 710 oss_ioctl_mixer(p, uap, retval) 711 struct proc *p; 712 struct oss_sys_ioctl_args /* { 713 syscallarg(int) fd; 714 syscallarg(u_long) com; 715 syscallarg(caddr_t) data; 716 } */ *uap; 717 register_t *retval; 718 { 719 struct file *fp; 720 struct filedesc *fdp; 721 u_long com; 722 struct audiodevinfo *di; 723 mixer_ctrl_t mc; 724 struct oss_mixer_info omi; 725 struct audio_device adev; 726 int idat; 727 int i; 728 int error; 729 int l, r, n, e; 730 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 731 732 fdp = p->p_fd; 733 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 734 return (EBADF); 735 736 FILE_USE(fp); 737 738 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 739 error = EBADF; 740 goto out; 741 } 742 743 com = SCARG(uap, com); 744 DPRINTF(("oss_ioctl_mixer: com=%08lx\n", com)); 745 746 retval[0] = 0; 747 748 di = getdevinfo(fp, p); 749 if (di == 0) { 750 error = EINVAL; 751 goto out; 752 } 753 754 ioctlf = fp->f_ops->fo_ioctl; 755 switch (com) { 756 case OSS_GET_VERSION: 757 idat = OSS_SOUND_VERSION; 758 break; 759 case OSS_SOUND_MIXER_INFO: 760 case OSS_SOUND_OLD_MIXER_INFO: 761 error = ioctlf(fp, AUDIO_GETDEV, (caddr_t)&adev, p); 762 if (error) 763 return (error); 764 omi.modify_counter = 1; 765 strncpy(omi.id, adev.name, sizeof omi.id); 766 strncpy(omi.name, adev.name, sizeof omi.name); 767 return copyout(&omi, SCARG(uap, data), OSS_IOCTL_SIZE(com)); 768 case OSS_SOUND_MIXER_READ_RECSRC: 769 if (di->source == -1) { 770 error = EINVAL; 771 goto out; 772 } 773 mc.dev = di->source; 774 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 775 mc.type = AUDIO_MIXER_ENUM; 776 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 777 if (error) 778 goto out; 779 e = opaque_to_enum(di, NULL, mc.un.ord); 780 if (e >= 0) 781 idat = 1 << di->rdevmap[e]; 782 } else { 783 mc.type = AUDIO_MIXER_SET; 784 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 785 if (error) 786 goto out; 787 e = opaque_to_enum(di, NULL, mc.un.mask); 788 if (e >= 0) 789 idat = 1 << di->rdevmap[e]; 790 } 791 break; 792 case OSS_SOUND_MIXER_READ_DEVMASK: 793 idat = di->devmask; 794 break; 795 case OSS_SOUND_MIXER_READ_RECMASK: 796 idat = di->recmask; 797 break; 798 case OSS_SOUND_MIXER_READ_STEREODEVS: 799 idat = di->stereomask; 800 break; 801 case OSS_SOUND_MIXER_READ_CAPS: 802 idat = di->caps; 803 break; 804 case OSS_SOUND_MIXER_WRITE_RECSRC: 805 case OSS_SOUND_MIXER_WRITE_R_RECSRC: 806 if (di->source == -1) { 807 error = EINVAL; 808 goto out; 809 } 810 mc.dev = di->source; 811 error = copyin(SCARG(uap, data), &idat, sizeof idat); 812 if (error) 813 goto out; 814 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 815 mc.type = AUDIO_MIXER_ENUM; 816 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 817 if (idat & (1 << i)) 818 break; 819 if (i >= OSS_SOUND_MIXER_NRDEVICES || 820 di->devmap[i] == -1) 821 return EINVAL; 822 mc.un.ord = enum_to_ord(di, di->devmap[i]); 823 } else { 824 mc.type = AUDIO_MIXER_SET; 825 mc.un.mask = 0; 826 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) { 827 if (idat & (1 << i)) { 828 if (di->devmap[i] == -1) 829 return EINVAL; 830 mc.un.mask |= enum_to_mask(di, di->devmap[i]); 831 } 832 } 833 } 834 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p); 835 goto out; 836 default: 837 if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com && 838 com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) { 839 n = OSS_GET_DEV(com); 840 if (di->devmap[n] == -1) { 841 error = EINVAL; 842 goto out; 843 } 844 doread: 845 mc.dev = di->devmap[n]; 846 mc.type = AUDIO_MIXER_VALUE; 847 mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1; 848 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 849 if (error) 850 goto out; 851 if (mc.un.value.num_channels != 2) { 852 l = r = mc.un.value.level[AUDIO_MIXER_LEVEL_MONO]; 853 } else { 854 l = mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT]; 855 r = mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT]; 856 } 857 idat = TO_OSSVOL(l) | (TO_OSSVOL(r) << 8); 858 DPRINTF(("OSS_MIXER_READ n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 859 n, di->devmap[n], l, r, idat)); 860 break; 861 } else if ((OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_FIRST) <= com && 862 com < OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_NRDEVICES)) || 863 (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 864 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES))) { 865 n = OSS_GET_DEV(com); 866 if (di->devmap[n] == -1) { 867 error = EINVAL; 868 goto out; 869 } 870 error = copyin(SCARG(uap, data), &idat, sizeof idat); 871 if (error) 872 goto out; 873 l = FROM_OSSVOL( idat & 0xff); 874 r = FROM_OSSVOL((idat >> 8) & 0xff); 875 mc.dev = di->devmap[n]; 876 mc.type = AUDIO_MIXER_VALUE; 877 if (di->stereomask & (1<<n)) { 878 mc.un.value.num_channels = 2; 879 mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l; 880 mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r; 881 } else { 882 mc.un.value.num_channels = 1; 883 mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r)/2; 884 } 885 DPRINTF(("OSS_MIXER_WRITE n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 886 n, di->devmap[n], l, r, idat)); 887 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p); 888 if (error) 889 goto out; 890 if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 891 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) { 892 error = 0; 893 goto out; 894 } 895 goto doread; 896 } else { 897 #ifdef AUDIO_DEBUG 898 printf("oss_audio: unknown mixer ioctl %04lx\n", com); 899 #endif 900 error = EINVAL; 901 goto out; 902 } 903 } 904 error = copyout(&idat, SCARG(uap, data), sizeof idat); 905 out: 906 FILE_UNUSE(fp, p); 907 return error; 908 } 909 910 /* Sequencer emulation */ 911 int 912 oss_ioctl_sequencer(p, uap, retval) 913 struct proc *p; 914 struct oss_sys_ioctl_args /* { 915 syscallarg(int) fd; 916 syscallarg(u_long) com; 917 syscallarg(caddr_t) data; 918 } */ *uap; 919 register_t *retval; 920 { 921 struct file *fp; 922 struct filedesc *fdp; 923 u_long com; 924 int idat, idat1; 925 struct synth_info si; 926 struct oss_synth_info osi; 927 struct oss_seq_event_rec oser; 928 int error; 929 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 930 931 fdp = p->p_fd; 932 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 933 return (EBADF); 934 935 FILE_USE(fp); 936 937 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 938 error = EBADF; 939 goto out; 940 } 941 942 com = SCARG(uap, com); 943 DPRINTF(("oss_ioctl_sequencer: com=%08lx\n", com)); 944 945 retval[0] = 0; 946 947 ioctlf = fp->f_ops->fo_ioctl; 948 switch (com) { 949 case OSS_SEQ_RESET: 950 error = ioctlf(fp, SEQUENCER_RESET, (caddr_t)&idat, p); 951 goto out; 952 case OSS_SEQ_SYNC: 953 error = ioctlf(fp, SEQUENCER_SYNC, (caddr_t)&idat, p); 954 goto out; 955 case OSS_SYNTH_INFO: 956 error = copyin(SCARG(uap, data), &osi, sizeof osi); 957 if (error) 958 goto out; 959 si.device = osi.device; 960 error = ioctlf(fp, SEQUENCER_INFO, (caddr_t)&si, p); 961 if (error) 962 goto out; 963 strncpy(osi.name, si.name, sizeof osi.name); 964 osi.device = si.device; 965 switch(si.synth_type) { 966 case SYNTH_TYPE_FM: 967 osi.synth_type = OSS_SYNTH_TYPE_FM; break; 968 case SYNTH_TYPE_SAMPLE: 969 osi.synth_type = OSS_SYNTH_TYPE_SAMPLE; break; 970 case SYNTH_TYPE_MIDI: 971 osi.synth_type = OSS_SYNTH_TYPE_MIDI; break; 972 default: 973 osi.synth_type = 0; break; 974 } 975 switch(si.synth_subtype) { 976 case SYNTH_SUB_FM_TYPE_ADLIB: 977 osi.synth_subtype = OSS_FM_TYPE_ADLIB; break; 978 case SYNTH_SUB_FM_TYPE_OPL3: 979 osi.synth_subtype = OSS_FM_TYPE_OPL3; break; 980 case SYNTH_SUB_MIDI_TYPE_MPU401: 981 osi.synth_subtype = OSS_MIDI_TYPE_MPU401; break; 982 case SYNTH_SUB_SAMPLE_TYPE_BASIC: 983 osi.synth_subtype = OSS_SAMPLE_TYPE_BASIC; break; 984 default: 985 osi.synth_subtype = 0; break; 986 } 987 osi.perc_mode = 0; 988 osi.nr_voices = si.nr_voices; 989 osi.nr_drums = 0; 990 osi.instr_bank_size = si.instr_bank_size; 991 osi.capabilities = 0; 992 if (si.capabilities & SYNTH_CAP_OPL3) 993 osi.capabilities |= OSS_SYNTH_CAP_OPL3; 994 if (si.capabilities & SYNTH_CAP_INPUT) 995 osi.capabilities |= OSS_SYNTH_CAP_INPUT; 996 error = copyout(&osi, SCARG(uap, data), sizeof osi); 997 goto out; 998 case OSS_SEQ_CTRLRATE: 999 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1000 if (error) 1001 goto out; 1002 error = ioctlf(fp, SEQUENCER_CTRLRATE, (caddr_t)&idat, p); 1003 if (error) 1004 goto out; 1005 retval[0] = idat; 1006 break; 1007 case OSS_SEQ_GETOUTCOUNT: 1008 error = ioctlf(fp, SEQUENCER_GETOUTCOUNT, (caddr_t)&idat, p); 1009 if (error) 1010 goto out; 1011 retval[0] = idat; 1012 break; 1013 case OSS_SEQ_GETINCOUNT: 1014 error = ioctlf(fp, SEQUENCER_GETINCOUNT, (caddr_t)&idat, p); 1015 if (error) 1016 goto out; 1017 retval[0] = idat; 1018 break; 1019 case OSS_SEQ_NRSYNTHS: 1020 error = ioctlf(fp, SEQUENCER_NRSYNTHS, (caddr_t)&idat, p); 1021 if (error) 1022 goto out; 1023 retval[0] = idat; 1024 break; 1025 case OSS_SEQ_NRMIDIS: 1026 error = ioctlf(fp, SEQUENCER_NRMIDIS, (caddr_t)&idat, p); 1027 if (error) 1028 goto out; 1029 retval[0] = idat; 1030 break; 1031 case OSS_SEQ_THRESHOLD: 1032 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1033 if (error) 1034 goto out; 1035 error = ioctlf(fp, SEQUENCER_THRESHOLD, (caddr_t)&idat, p); 1036 goto out; 1037 case OSS_MEMAVL: 1038 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1039 if (error) 1040 goto out; 1041 error = ioctlf(fp, SEQUENCER_MEMAVL, (caddr_t)&idat, p); 1042 if (error) 1043 goto out; 1044 retval[0] = idat; 1045 break; 1046 case OSS_SEQ_PANIC: 1047 error = ioctlf(fp, SEQUENCER_PANIC, (caddr_t)&idat, p); 1048 goto out; 1049 case OSS_SEQ_OUTOFBAND: 1050 error = copyin(SCARG(uap, data), &oser, sizeof oser); 1051 if (error) 1052 goto out; 1053 error = ioctlf(fp, SEQUENCER_OUTOFBAND, (caddr_t)&oser, p); 1054 if (error) 1055 goto out; 1056 break; 1057 case OSS_SEQ_GETTIME: 1058 error = ioctlf(fp, SEQUENCER_GETTIME, (caddr_t)&idat, p); 1059 if (error) 1060 goto out; 1061 retval[0] = idat; 1062 break; 1063 case OSS_TMR_TIMEBASE: 1064 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1065 if (error) 1066 goto out; 1067 error = ioctlf(fp, SEQUENCER_TMR_TIMEBASE, (caddr_t)&idat, p); 1068 if (error) 1069 goto out; 1070 retval[0] = idat; 1071 break; 1072 case OSS_TMR_START: 1073 error = ioctlf(fp, SEQUENCER_TMR_START, (caddr_t)&idat, p); 1074 goto out; 1075 case OSS_TMR_STOP: 1076 error = ioctlf(fp, SEQUENCER_TMR_STOP, (caddr_t)&idat, p); 1077 goto out; 1078 case OSS_TMR_CONTINUE: 1079 error = ioctlf(fp, SEQUENCER_TMR_CONTINUE, (caddr_t)&idat, p); 1080 goto out; 1081 case OSS_TMR_TEMPO: 1082 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1083 if (error) 1084 goto out; 1085 error = ioctlf(fp, SEQUENCER_TMR_TEMPO, (caddr_t)&idat, p); 1086 if (error) 1087 goto out; 1088 retval[0] = idat; 1089 break; 1090 case OSS_TMR_SOURCE: 1091 error = copyin(SCARG(uap, data), &idat1, sizeof idat); 1092 if (error) 1093 goto out; 1094 idat = 0; 1095 if (idat1 & OSS_TMR_INTERNAL) idat |= SEQUENCER_TMR_INTERNAL; 1096 error = ioctlf(fp, SEQUENCER_TMR_SOURCE, (caddr_t)&idat, p); 1097 if (error) 1098 goto out; 1099 idat1 = idat; 1100 if (idat1 & SEQUENCER_TMR_INTERNAL) idat |= OSS_TMR_INTERNAL; 1101 retval[0] = idat; 1102 break; 1103 case OSS_TMR_METRONOME: 1104 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1105 if (error) 1106 goto out; 1107 error = ioctlf(fp, SEQUENCER_TMR_METRONOME, (caddr_t)&idat, p); 1108 goto out; 1109 case OSS_TMR_SELECT: 1110 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1111 if (error) 1112 goto out; 1113 retval[0] = idat; 1114 error = ioctlf(fp, SEQUENCER_TMR_SELECT, (caddr_t)&idat, p); 1115 goto out; 1116 default: 1117 error = EINVAL; 1118 goto out; 1119 } 1120 1121 error = copyout(&idat, SCARG(uap, data), sizeof idat); 1122 out: 1123 FILE_UNUSE(fp, p); 1124 return error; 1125 } 1126 1127 /* 1128 * Check that the blocksize is a power of 2 as OSS wants. 1129 * If not, set it to be. 1130 */ 1131 static void 1132 setblocksize(fp, info, p) 1133 struct file *fp; 1134 struct audio_info *info; 1135 struct proc *p; 1136 { 1137 struct audio_info set; 1138 int s; 1139 1140 if (info->blocksize & (info->blocksize-1)) { 1141 for(s = 32; s < info->blocksize; s <<= 1) 1142 ; 1143 AUDIO_INITINFO(&set); 1144 set.blocksize = s; 1145 fp->f_ops->fo_ioctl(fp, AUDIO_SETINFO, (caddr_t)&set, p); 1146 fp->f_ops->fo_ioctl(fp, AUDIO_GETINFO, (caddr_t)info, p); 1147 } 1148 } 1149
Indexes created Fri Sep 26 08:10:20 GMT 2025