ossaudio.c revision 1.52
1 /* $NetBSD: ossaudio.c,v 1.52 2006/07/23 22:06:09 ad 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 1.52 2006/07/23 22:06:09 ad 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/sa.h> 52 #include <sys/syscallargs.h> 53 54 #include <compat/ossaudio/ossaudio.h> 55 #include <compat/ossaudio/ossaudiovar.h> 56 57 #ifdef AUDIO_DEBUG 58 #define DPRINTF(x) if (ossdebug) printf x 59 int ossdebug = 0; 60 #else 61 #define DPRINTF(x) 62 #endif 63 64 #define TO_OSSVOL(x) (((x) * 100 + 127) / 255) 65 #define FROM_OSSVOL(x) ((((x) > 100 ? 100 : (x)) * 255 + 50) / 100) 66 67 static struct audiodevinfo *getdevinfo __P((struct file *, struct lwp *)); 68 static int opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq); 69 static int enum_to_ord(struct audiodevinfo *di, int enm); 70 static int enum_to_mask(struct audiodevinfo *di, int enm); 71 72 static void setblocksize __P((struct file *, struct audio_info *, struct lwp *)); 73 74 75 int 76 oss_ioctl_audio(l, uap, retval) 77 struct lwp *l; 78 struct oss_sys_ioctl_args /* { 79 syscallarg(int) fd; 80 syscallarg(u_long) com; 81 syscallarg(caddr_t) data; 82 } */ *uap; 83 register_t *retval; 84 { 85 struct proc *p = l->l_proc; 86 struct file *fp; 87 struct filedesc *fdp; 88 u_long com; 89 struct audio_info tmpinfo; 90 struct audio_offset tmpoffs; 91 struct oss_audio_buf_info bufinfo; 92 struct oss_count_info cntinfo; 93 struct audio_encoding tmpenc; 94 u_int u; 95 int idat, idata; 96 int error = 0; 97 int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 98 99 fdp = p->p_fd; 100 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 101 return (EBADF); 102 103 FILE_USE(fp); 104 105 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 106 error = EBADF; 107 goto out; 108 } 109 110 com = SCARG(uap, com); 111 DPRINTF(("oss_ioctl_audio: com=%08lx\n", com)); 112 113 retval[0] = 0; 114 115 ioctlf = fp->f_ops->fo_ioctl; 116 switch (com) { 117 case OSS_SNDCTL_DSP_RESET: 118 error = ioctlf(fp, AUDIO_FLUSH, (caddr_t)0, l); 119 if (error) 120 goto out; 121 break; 122 case OSS_SNDCTL_DSP_SYNC: 123 error = ioctlf(fp, AUDIO_DRAIN, (caddr_t)0, l); 124 if (error) 125 goto out; 126 break; 127 case OSS_SNDCTL_DSP_POST: 128 /* This call is merely advisory, and may be a nop. */ 129 break; 130 case OSS_SNDCTL_DSP_SPEED: 131 AUDIO_INITINFO(&tmpinfo); 132 error = copyin(SCARG(uap, data), &idat, sizeof idat); 133 if (error) 134 goto out; 135 tmpinfo.play.sample_rate = 136 tmpinfo.record.sample_rate = idat; 137 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, l); 138 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_SPEED %d = %d\n", 139 idat, error)); 140 if (error) 141 goto out; 142 /* fall into ... */ 143 case OSS_SOUND_PCM_READ_RATE: 144 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 145 if (error) 146 goto out; 147 idat = tmpinfo.play.sample_rate; 148 error = copyout(&idat, SCARG(uap, data), sizeof idat); 149 if (error) 150 goto out; 151 break; 152 case OSS_SNDCTL_DSP_STEREO: 153 AUDIO_INITINFO(&tmpinfo); 154 error = copyin(SCARG(uap, data), &idat, sizeof idat); 155 if (error) 156 goto out; 157 tmpinfo.play.channels = 158 tmpinfo.record.channels = idat ? 2 : 1; 159 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, l); 160 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 161 if (error) 162 goto out; 163 idat = tmpinfo.play.channels - 1; 164 error = copyout(&idat, SCARG(uap, data), sizeof idat); 165 if (error) 166 goto out; 167 break; 168 case OSS_SNDCTL_DSP_GETBLKSIZE: 169 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 170 if (error) 171 goto out; 172 setblocksize(fp, &tmpinfo, l); 173 idat = tmpinfo.blocksize; 174 error = copyout(&idat, SCARG(uap, data), sizeof idat); 175 if (error) 176 goto out; 177 break; 178 case OSS_SNDCTL_DSP_SETFMT: 179 AUDIO_INITINFO(&tmpinfo); 180 error = copyin(SCARG(uap, data), &idat, sizeof idat); 181 if (error) 182 goto out; 183 switch (idat) { 184 case OSS_AFMT_MU_LAW: 185 tmpinfo.play.precision = 186 tmpinfo.record.precision = 8; 187 tmpinfo.play.encoding = 188 tmpinfo.record.encoding = AUDIO_ENCODING_ULAW; 189 break; 190 case OSS_AFMT_A_LAW: 191 tmpinfo.play.precision = 192 tmpinfo.record.precision = 8; 193 tmpinfo.play.encoding = 194 tmpinfo.record.encoding = AUDIO_ENCODING_ALAW; 195 break; 196 case OSS_AFMT_U8: 197 tmpinfo.play.precision = 198 tmpinfo.record.precision = 8; 199 tmpinfo.play.encoding = 200 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR; 201 break; 202 case OSS_AFMT_S8: 203 tmpinfo.play.precision = 204 tmpinfo.record.precision = 8; 205 tmpinfo.play.encoding = 206 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR; 207 break; 208 case OSS_AFMT_S16_LE: 209 tmpinfo.play.precision = 210 tmpinfo.record.precision = 16; 211 tmpinfo.play.encoding = 212 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_LE; 213 break; 214 case OSS_AFMT_S16_BE: 215 tmpinfo.play.precision = 216 tmpinfo.record.precision = 16; 217 tmpinfo.play.encoding = 218 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_BE; 219 break; 220 case OSS_AFMT_U16_LE: 221 tmpinfo.play.precision = 222 tmpinfo.record.precision = 16; 223 tmpinfo.play.encoding = 224 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_LE; 225 break; 226 case OSS_AFMT_U16_BE: 227 tmpinfo.play.precision = 228 tmpinfo.record.precision = 16; 229 tmpinfo.play.encoding = 230 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_BE; 231 break; 232 default: 233 error = EINVAL; 234 goto out; 235 } 236 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, l); 237 /* fall into ... */ 238 case OSS_SOUND_PCM_READ_BITS: 239 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 240 if (error) 241 goto out; 242 switch (tmpinfo.play.encoding) { 243 case AUDIO_ENCODING_ULAW: 244 idat = OSS_AFMT_MU_LAW; 245 break; 246 case AUDIO_ENCODING_ALAW: 247 idat = OSS_AFMT_A_LAW; 248 break; 249 case AUDIO_ENCODING_SLINEAR_LE: 250 if (tmpinfo.play.precision == 16) 251 idat = OSS_AFMT_S16_LE; 252 else 253 idat = OSS_AFMT_S8; 254 break; 255 case AUDIO_ENCODING_SLINEAR_BE: 256 if (tmpinfo.play.precision == 16) 257 idat = OSS_AFMT_S16_BE; 258 else 259 idat = OSS_AFMT_S8; 260 break; 261 case AUDIO_ENCODING_ULINEAR_LE: 262 if (tmpinfo.play.precision == 16) 263 idat = OSS_AFMT_U16_LE; 264 else 265 idat = OSS_AFMT_U8; 266 break; 267 case AUDIO_ENCODING_ULINEAR_BE: 268 if (tmpinfo.play.precision == 16) 269 idat = OSS_AFMT_U16_BE; 270 else 271 idat = OSS_AFMT_U8; 272 break; 273 case AUDIO_ENCODING_ADPCM: 274 idat = OSS_AFMT_IMA_ADPCM; 275 break; 276 } 277 error = copyout(&idat, SCARG(uap, data), sizeof idat); 278 if (error) 279 goto out; 280 break; 281 case OSS_SNDCTL_DSP_CHANNELS: 282 AUDIO_INITINFO(&tmpinfo); 283 error = copyin(SCARG(uap, data), &idat, sizeof idat); 284 if (error) 285 goto out; 286 tmpinfo.play.channels = 287 tmpinfo.record.channels = idat; 288 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, l); 289 /* fall into ... */ 290 case OSS_SOUND_PCM_READ_CHANNELS: 291 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 292 if (error) 293 goto out; 294 idat = tmpinfo.play.channels; 295 error = copyout(&idat, SCARG(uap, data), sizeof idat); 296 if (error) 297 goto out; 298 break; 299 case OSS_SOUND_PCM_WRITE_FILTER: 300 case OSS_SOUND_PCM_READ_FILTER: 301 error = EINVAL; /* XXX unimplemented */ 302 goto out; 303 case OSS_SNDCTL_DSP_SUBDIVIDE: 304 error = copyin(SCARG(uap, data), &idat, sizeof idat); 305 if (error) 306 goto out; 307 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 308 setblocksize(fp, &tmpinfo, l); 309 if (error) 310 goto out; 311 if (idat == 0) 312 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 313 idat = (tmpinfo.play.buffer_size / idat) & -4; 314 AUDIO_INITINFO(&tmpinfo); 315 tmpinfo.blocksize = idat; 316 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, l); 317 if (error) 318 goto out; 319 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 320 error = copyout(&idat, SCARG(uap, data), sizeof idat); 321 if (error) 322 goto out; 323 break; 324 case OSS_SNDCTL_DSP_SETFRAGMENT: 325 AUDIO_INITINFO(&tmpinfo); 326 error = copyin(SCARG(uap, data), &idat, sizeof idat); 327 if (error) 328 goto out; 329 if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17) { 330 error = EINVAL; 331 goto out; 332 } 333 tmpinfo.blocksize = 1 << (idat & 0xffff); 334 tmpinfo.hiwat = (idat >> 16) & 0x7fff; 335 DPRINTF(("oss_audio: SETFRAGMENT blksize=%d, hiwat=%d\n", 336 tmpinfo.blocksize, tmpinfo.hiwat)); 337 if (tmpinfo.hiwat == 0) /* 0 means set to max */ 338 tmpinfo.hiwat = 65536; 339 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, l); 340 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 341 if (error) 342 goto out; 343 u = tmpinfo.blocksize; 344 for(idat = 0; u > 1; idat++, u >>= 1) 345 ; 346 idat |= (tmpinfo.hiwat & 0x7fff) << 16; 347 error = copyout(&idat, SCARG(uap, data), sizeof idat); 348 if (error) 349 goto out; 350 break; 351 case OSS_SNDCTL_DSP_GETFMTS: 352 for(idat = 0, tmpenc.index = 0; 353 ioctlf(fp, AUDIO_GETENC, (caddr_t)&tmpenc, l) == 0; 354 tmpenc.index++) { 355 switch(tmpenc.encoding) { 356 case AUDIO_ENCODING_ULAW: 357 idat |= OSS_AFMT_MU_LAW; 358 break; 359 case AUDIO_ENCODING_ALAW: 360 idat |= OSS_AFMT_A_LAW; 361 break; 362 case AUDIO_ENCODING_SLINEAR: 363 idat |= OSS_AFMT_S8; 364 break; 365 case AUDIO_ENCODING_SLINEAR_LE: 366 if (tmpenc.precision == 16) 367 idat |= OSS_AFMT_S16_LE; 368 else 369 idat |= OSS_AFMT_S8; 370 break; 371 case AUDIO_ENCODING_SLINEAR_BE: 372 if (tmpenc.precision == 16) 373 idat |= OSS_AFMT_S16_BE; 374 else 375 idat |= OSS_AFMT_S8; 376 break; 377 case AUDIO_ENCODING_ULINEAR: 378 idat |= OSS_AFMT_U8; 379 break; 380 case AUDIO_ENCODING_ULINEAR_LE: 381 if (tmpenc.precision == 16) 382 idat |= OSS_AFMT_U16_LE; 383 else 384 idat |= OSS_AFMT_U8; 385 break; 386 case AUDIO_ENCODING_ULINEAR_BE: 387 if (tmpenc.precision == 16) 388 idat |= OSS_AFMT_U16_BE; 389 else 390 idat |= OSS_AFMT_U8; 391 break; 392 case AUDIO_ENCODING_ADPCM: 393 idat |= OSS_AFMT_IMA_ADPCM; 394 break; 395 default: 396 break; 397 } 398 } 399 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETFMTS = %x\n", idat)); 400 error = copyout(&idat, SCARG(uap, data), sizeof idat); 401 if (error) 402 goto out; 403 break; 404 case OSS_SNDCTL_DSP_GETOSPACE: 405 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 406 if (error) 407 goto out; 408 setblocksize(fp, &tmpinfo, l); 409 bufinfo.fragsize = tmpinfo.blocksize; 410 bufinfo.fragments = tmpinfo.hiwat - 411 (tmpinfo.play.seek + tmpinfo.blocksize - 1) / 412 tmpinfo.blocksize; 413 bufinfo.fragstotal = tmpinfo.hiwat; 414 bufinfo.bytes = 415 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.play.seek; 416 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 417 if (error) 418 goto out; 419 break; 420 case OSS_SNDCTL_DSP_GETISPACE: 421 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 422 if (error) 423 goto out; 424 setblocksize(fp, &tmpinfo, l); 425 bufinfo.fragsize = tmpinfo.blocksize; 426 bufinfo.fragments = tmpinfo.hiwat - 427 (tmpinfo.record.seek + tmpinfo.blocksize - 1) / 428 tmpinfo.blocksize; 429 bufinfo.fragstotal = tmpinfo.hiwat; 430 bufinfo.bytes = 431 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.record.seek; 432 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETxSPACE = %d %d %d %d\n", 433 bufinfo.fragsize, bufinfo.fragments, 434 bufinfo.fragstotal, bufinfo.bytes)); 435 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 436 if (error) 437 goto out; 438 break; 439 case OSS_SNDCTL_DSP_NONBLOCK: 440 idat = 1; 441 error = ioctlf(fp, FIONBIO, (caddr_t)&idat, l); 442 if (error) 443 goto out; 444 break; 445 case OSS_SNDCTL_DSP_GETCAPS: 446 error = ioctlf(fp, AUDIO_GETPROPS, (caddr_t)&idata, l); 447 if (error) 448 goto out; 449 idat = OSS_DSP_CAP_TRIGGER; /* pretend we have trigger */ 450 if (idata & AUDIO_PROP_FULLDUPLEX) 451 idat |= OSS_DSP_CAP_DUPLEX; 452 if (idata & AUDIO_PROP_MMAP) 453 idat |= OSS_DSP_CAP_MMAP; 454 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETCAPS = %x\n", idat)); 455 error = copyout(&idat, SCARG(uap, data), sizeof idat); 456 if (error) 457 goto out; 458 break; 459 #if 0 460 case OSS_SNDCTL_DSP_GETTRIGGER: 461 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, l); 462 if (error) 463 goto out; 464 idat = (tmpinfo.play.pause ? 0 : OSS_PCM_ENABLE_OUTPUT) | 465 (tmpinfo.record.pause ? 0 : OSS_PCM_ENABLE_INPUT); 466 error = copyout(&idat, SCARG(uap, data), sizeof idat); 467 if (error) 468 goto out; 469 break; 470 case OSS_SNDCTL_DSP_SETTRIGGER: 471 (void) ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 472 error = copyin(SCARG(uap, data), &idat, sizeof idat); 473 if (error) 474 goto out; 475 tmpinfo.play.pause = (idat & OSS_PCM_ENABLE_OUTPUT) == 0; 476 tmpinfo.record.pause = (idat & OSS_PCM_ENABLE_INPUT) == 0; 477 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, l); 478 error = copyout(&idat, SCARG(uap, data), sizeof idat); 479 if (error) 480 goto out; 481 break; 482 #else 483 case OSS_SNDCTL_DSP_GETTRIGGER: 484 case OSS_SNDCTL_DSP_SETTRIGGER: 485 /* XXX Do nothing for now. */ 486 idat = OSS_PCM_ENABLE_OUTPUT; 487 error = copyout(&idat, SCARG(uap, data), sizeof idat); 488 goto out; 489 #endif 490 case OSS_SNDCTL_DSP_GETIPTR: 491 error = ioctlf(fp, AUDIO_GETIOFFS, (caddr_t)&tmpoffs, l); 492 if (error) 493 goto out; 494 cntinfo.bytes = tmpoffs.samples; 495 cntinfo.blocks = tmpoffs.deltablks; 496 cntinfo.ptr = tmpoffs.offset; 497 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 498 if (error) 499 goto out; 500 break; 501 case OSS_SNDCTL_DSP_GETOPTR: 502 error = ioctlf(fp, AUDIO_GETOOFFS, (caddr_t)&tmpoffs, l); 503 if (error) 504 goto out; 505 cntinfo.bytes = tmpoffs.samples; 506 cntinfo.blocks = tmpoffs.deltablks; 507 cntinfo.ptr = tmpoffs.offset; 508 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 509 if (error) 510 goto out; 511 break; 512 case OSS_SNDCTL_DSP_SETDUPLEX: 513 idat = 1; 514 error = ioctlf(fp, AUDIO_SETFD, (caddr_t)&idat, l); 515 goto out; 516 case OSS_SNDCTL_DSP_MAPINBUF: 517 case OSS_SNDCTL_DSP_MAPOUTBUF: 518 case OSS_SNDCTL_DSP_SETSYNCRO: 519 case OSS_SNDCTL_DSP_PROFILE: 520 error = EINVAL; 521 goto out; 522 default: 523 error = EINVAL; 524 goto out; 525 } 526 527 out: 528 FILE_UNUSE(fp, l); 529 return error; 530 } 531 532 /* If the NetBSD mixer device should have more than 32 devices 533 * some will not be available to Linux */ 534 #define NETBSD_MAXDEVS 64 535 struct audiodevinfo { 536 int done; 537 dev_t dev; 538 int16_t devmap[OSS_SOUND_MIXER_NRDEVICES], 539 rdevmap[NETBSD_MAXDEVS]; 540 char names[NETBSD_MAXDEVS][MAX_AUDIO_DEV_LEN]; 541 int enum2opaque[NETBSD_MAXDEVS]; 542 u_long devmask, recmask, stereomask; 543 u_long caps, source; 544 }; 545 546 static int 547 opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq) 548 { 549 int i, o; 550 551 for (i = 0; i < NETBSD_MAXDEVS; i++) { 552 o = di->enum2opaque[i]; 553 if (o == opq) 554 break; 555 if (o == -1 && label != NULL && 556 !strncmp(di->names[i], label->name, sizeof di->names[i])) { 557 di->enum2opaque[i] = opq; 558 break; 559 } 560 } 561 if (i >= NETBSD_MAXDEVS) 562 i = -1; 563 /*printf("opq_to_enum %s %d -> %d\n", label->name, opq, i);*/ 564 return (i); 565 } 566 567 static int 568 enum_to_ord(struct audiodevinfo *di, int enm) 569 { 570 if (enm >= NETBSD_MAXDEVS) 571 return (-1); 572 573 /*printf("enum_to_ord %d -> %d\n", enm, di->enum2opaque[enm]);*/ 574 return (di->enum2opaque[enm]); 575 } 576 577 static int 578 enum_to_mask(struct audiodevinfo *di, int enm) 579 { 580 int m; 581 if (enm >= NETBSD_MAXDEVS) 582 return (0); 583 584 m = di->enum2opaque[enm]; 585 if (m == -1) 586 m = 0; 587 /*printf("enum_to_mask %d -> %d\n", enm, di->enum2opaque[enm]);*/ 588 return (m); 589 } 590 591 /* 592 * Collect the audio device information to allow faster 593 * emulation of the Linux mixer ioctls. Cache the information 594 * to eliminate the overhead of repeating all the ioctls needed 595 * to collect the information. 596 */ 597 static struct audiodevinfo * 598 getdevinfo(fp, l) 599 struct file *fp; 600 struct lwp *l; 601 { 602 mixer_devinfo_t mi; 603 int i, j, e; 604 static const struct { 605 const char *name; 606 int code; 607 } *dp, devs[] = { 608 { AudioNmicrophone, OSS_SOUND_MIXER_MIC }, 609 { AudioNline, OSS_SOUND_MIXER_LINE }, 610 { AudioNcd, OSS_SOUND_MIXER_CD }, 611 { AudioNdac, OSS_SOUND_MIXER_PCM }, 612 { AudioNaux, OSS_SOUND_MIXER_LINE1 }, 613 { AudioNrecord, OSS_SOUND_MIXER_IMIX }, 614 { AudioNmaster, OSS_SOUND_MIXER_VOLUME }, 615 { AudioNtreble, OSS_SOUND_MIXER_TREBLE }, 616 { AudioNbass, OSS_SOUND_MIXER_BASS }, 617 { AudioNspeaker, OSS_SOUND_MIXER_SPEAKER }, 618 /* { AudioNheadphone, ?? },*/ 619 { AudioNoutput, OSS_SOUND_MIXER_OGAIN }, 620 { AudioNinput, OSS_SOUND_MIXER_IGAIN }, 621 /* { AudioNmaster, OSS_SOUND_MIXER_SPEAKER },*/ 622 /* { AudioNstereo, ?? },*/ 623 /* { AudioNmono, ?? },*/ 624 { AudioNfmsynth, OSS_SOUND_MIXER_SYNTH }, 625 /* { AudioNwave, OSS_SOUND_MIXER_PCM },*/ 626 { AudioNmidi, OSS_SOUND_MIXER_SYNTH }, 627 /* { AudioNmixerout, ?? },*/ 628 { 0, -1 } 629 }; 630 int (*ioctlf)(struct file *, u_long, void *, struct lwp *) = 631 fp->f_ops->fo_ioctl; 632 struct vnode *vp; 633 struct vattr va; 634 static struct audiodevinfo devcache = { 0 }; 635 struct audiodevinfo *di = &devcache; 636 int mlen, dlen; 637 638 /* 639 * Figure out what device it is so we can check if the 640 * cached data is valid. 641 */ 642 vp = (struct vnode *)fp->f_data; 643 if (vp->v_type != VCHR) 644 return 0; 645 if (VOP_GETATTR(vp, &va, l->l_cred, l)) 646 return 0; 647 if (di->done && di->dev == va.va_rdev) 648 return di; 649 650 di->done = 1; 651 di->dev = va.va_rdev; 652 di->devmask = 0; 653 di->recmask = 0; 654 di->stereomask = 0; 655 di->source = ~0; 656 di->caps = 0; 657 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 658 di->devmap[i] = -1; 659 for(i = 0; i < NETBSD_MAXDEVS; i++) { 660 di->rdevmap[i] = -1; 661 di->names[i][0] = '\0'; 662 di->enum2opaque[i] = -1; 663 } 664 for(i = 0; i < NETBSD_MAXDEVS; i++) { 665 mi.index = i; 666 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, l) < 0) 667 break; 668 switch(mi.type) { 669 case AUDIO_MIXER_VALUE: 670 for(dp = devs; dp->name; dp++) { 671 if (strcmp(dp->name, mi.label.name) == 0) 672 break; 673 dlen = strlen(dp->name); 674 mlen = strlen(mi.label.name); 675 if (dlen < mlen 676 && mi.label.name[mlen-dlen-1] == '.' 677 && strcmp(dp->name, mi.label.name + mlen - dlen) == 0) 678 break; 679 } 680 if (dp->code >= 0) { 681 di->devmap[dp->code] = i; 682 di->rdevmap[i] = dp->code; 683 di->devmask |= 1 << dp->code; 684 if (mi.un.v.num_channels == 2) 685 di->stereomask |= 1 << dp->code; 686 strncpy(di->names[i], mi.label.name, 687 sizeof di->names[i]); 688 } 689 break; 690 } 691 } 692 for(i = 0; i < NETBSD_MAXDEVS; i++) { 693 mi.index = i; 694 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, l) < 0) 695 break; 696 if (strcmp(mi.label.name, AudioNsource) != 0) 697 continue; 698 di->source = i; 699 switch(mi.type) { 700 case AUDIO_MIXER_ENUM: 701 for(j = 0; j < mi.un.e.num_mem; j++) { 702 e = opaque_to_enum(di, 703 &mi.un.e.member[j].label, 704 mi.un.e.member[j].ord); 705 if (e >= 0) 706 di->recmask |= 1 << di->rdevmap[e]; 707 } 708 di->caps = OSS_SOUND_CAP_EXCL_INPUT; 709 break; 710 case AUDIO_MIXER_SET: 711 for(j = 0; j < mi.un.s.num_mem; j++) { 712 e = opaque_to_enum(di, 713 &mi.un.s.member[j].label, 714 mi.un.s.member[j].mask); 715 if (e >= 0) 716 di->recmask |= 1 << di->rdevmap[e]; 717 } 718 break; 719 } 720 } 721 return di; 722 } 723 724 int 725 oss_ioctl_mixer(lwp, uap, retval) 726 struct lwp *lwp; 727 struct oss_sys_ioctl_args /* { 728 syscallarg(int) fd; 729 syscallarg(u_long) com; 730 syscallarg(caddr_t) data; 731 } */ *uap; 732 register_t *retval; 733 { 734 struct proc *p = lwp->l_proc; 735 struct file *fp; 736 struct filedesc *fdp; 737 u_long com; 738 struct audiodevinfo *di; 739 mixer_ctrl_t mc; 740 struct oss_mixer_info omi; 741 struct audio_device adev; 742 int idat; 743 int i; 744 int error; 745 int l, r, n, e; 746 int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 747 748 fdp = p->p_fd; 749 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 750 return (EBADF); 751 752 FILE_USE(fp); 753 754 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 755 error = EBADF; 756 goto out; 757 } 758 759 com = SCARG(uap, com); 760 DPRINTF(("oss_ioctl_mixer: com=%08lx\n", com)); 761 762 retval[0] = 0; 763 764 di = getdevinfo(fp, lwp); 765 if (di == 0) { 766 error = EINVAL; 767 goto out; 768 } 769 770 ioctlf = fp->f_ops->fo_ioctl; 771 switch (com) { 772 case OSS_GET_VERSION: 773 idat = OSS_SOUND_VERSION; 774 break; 775 case OSS_SOUND_MIXER_INFO: 776 case OSS_SOUND_OLD_MIXER_INFO: 777 error = ioctlf(fp, AUDIO_GETDEV, (caddr_t)&adev, lwp); 778 if (error) 779 goto out; 780 omi.modify_counter = 1; 781 strncpy(omi.id, adev.name, sizeof omi.id); 782 strncpy(omi.name, adev.name, sizeof omi.name); 783 error = copyout(&omi, SCARG(uap, data), OSS_IOCTL_SIZE(com)); 784 goto out; 785 case OSS_SOUND_MIXER_READ_RECSRC: 786 if (di->source == -1) { 787 error = EINVAL; 788 goto out; 789 } 790 mc.dev = di->source; 791 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 792 mc.type = AUDIO_MIXER_ENUM; 793 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, lwp); 794 if (error) 795 goto out; 796 e = opaque_to_enum(di, NULL, mc.un.ord); 797 if (e >= 0) 798 idat = 1 << di->rdevmap[e]; 799 } else { 800 mc.type = AUDIO_MIXER_SET; 801 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, lwp); 802 if (error) 803 goto out; 804 e = opaque_to_enum(di, NULL, mc.un.mask); 805 if (e >= 0) 806 idat = 1 << di->rdevmap[e]; 807 } 808 break; 809 case OSS_SOUND_MIXER_READ_DEVMASK: 810 idat = di->devmask; 811 break; 812 case OSS_SOUND_MIXER_READ_RECMASK: 813 idat = di->recmask; 814 break; 815 case OSS_SOUND_MIXER_READ_STEREODEVS: 816 idat = di->stereomask; 817 break; 818 case OSS_SOUND_MIXER_READ_CAPS: 819 idat = di->caps; 820 break; 821 case OSS_SOUND_MIXER_WRITE_RECSRC: 822 case OSS_SOUND_MIXER_WRITE_R_RECSRC: 823 if (di->source == -1) { 824 error = EINVAL; 825 goto out; 826 } 827 mc.dev = di->source; 828 error = copyin(SCARG(uap, data), &idat, sizeof idat); 829 if (error) 830 goto out; 831 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 832 mc.type = AUDIO_MIXER_ENUM; 833 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 834 if (idat & (1 << i)) 835 break; 836 if (i >= OSS_SOUND_MIXER_NRDEVICES || 837 di->devmap[i] == -1) { 838 error = EINVAL; 839 goto out; 840 } 841 mc.un.ord = enum_to_ord(di, di->devmap[i]); 842 } else { 843 mc.type = AUDIO_MIXER_SET; 844 mc.un.mask = 0; 845 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) { 846 if (idat & (1 << i)) { 847 if (di->devmap[i] == -1) { 848 error = EINVAL; 849 goto out; 850 } 851 mc.un.mask |= enum_to_mask(di, di->devmap[i]); 852 } 853 } 854 } 855 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, lwp); 856 goto out; 857 default: 858 if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com && 859 com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) { 860 n = OSS_GET_DEV(com); 861 if (di->devmap[n] == -1) { 862 error = EINVAL; 863 goto out; 864 } 865 doread: 866 mc.dev = di->devmap[n]; 867 mc.type = AUDIO_MIXER_VALUE; 868 mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1; 869 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, lwp); 870 if (error) 871 goto out; 872 if (mc.un.value.num_channels != 2) { 873 l = r = mc.un.value.level[AUDIO_MIXER_LEVEL_MONO]; 874 } else { 875 l = mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT]; 876 r = mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT]; 877 } 878 idat = TO_OSSVOL(l) | (TO_OSSVOL(r) << 8); 879 DPRINTF(("OSS_MIXER_READ n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 880 n, di->devmap[n], l, r, idat)); 881 break; 882 } else if ((OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_FIRST) <= com && 883 com < OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_NRDEVICES)) || 884 (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 885 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES))) { 886 n = OSS_GET_DEV(com); 887 if (di->devmap[n] == -1) { 888 error = EINVAL; 889 goto out; 890 } 891 error = copyin(SCARG(uap, data), &idat, sizeof idat); 892 if (error) 893 goto out; 894 l = FROM_OSSVOL( idat & 0xff); 895 r = FROM_OSSVOL((idat >> 8) & 0xff); 896 mc.dev = di->devmap[n]; 897 mc.type = AUDIO_MIXER_VALUE; 898 if (di->stereomask & (1<<n)) { 899 mc.un.value.num_channels = 2; 900 mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l; 901 mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r; 902 } else { 903 mc.un.value.num_channels = 1; 904 mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r)/2; 905 } 906 DPRINTF(("OSS_MIXER_WRITE n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 907 n, di->devmap[n], l, r, idat)); 908 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, lwp); 909 if (error) 910 goto out; 911 if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 912 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) { 913 error = 0; 914 goto out; 915 } 916 goto doread; 917 } else { 918 #ifdef AUDIO_DEBUG 919 printf("oss_audio: unknown mixer ioctl %04lx\n", com); 920 #endif 921 error = EINVAL; 922 goto out; 923 } 924 } 925 error = copyout(&idat, SCARG(uap, data), sizeof idat); 926 out: 927 FILE_UNUSE(fp, lwp); 928 return error; 929 } 930 931 /* Sequencer emulation */ 932 int 933 oss_ioctl_sequencer(l, uap, retval) 934 struct lwp *l; 935 struct oss_sys_ioctl_args /* { 936 syscallarg(int) fd; 937 syscallarg(u_long) com; 938 syscallarg(caddr_t) data; 939 } */ *uap; 940 register_t *retval; 941 { 942 struct proc *p = l->l_proc; 943 struct file *fp; 944 struct filedesc *fdp; 945 u_long com; 946 int idat, idat1; 947 struct synth_info si; 948 struct oss_synth_info osi; 949 struct oss_seq_event_rec oser; 950 int error; 951 int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 952 953 fdp = p->p_fd; 954 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 955 return (EBADF); 956 957 FILE_USE(fp); 958 959 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 960 error = EBADF; 961 goto out; 962 } 963 964 com = SCARG(uap, com); 965 DPRINTF(("oss_ioctl_sequencer: com=%08lx\n", com)); 966 967 retval[0] = 0; 968 969 ioctlf = fp->f_ops->fo_ioctl; 970 switch (com) { 971 case OSS_SEQ_RESET: 972 error = ioctlf(fp, SEQUENCER_RESET, (caddr_t)&idat, l); 973 goto out; 974 case OSS_SEQ_SYNC: 975 error = ioctlf(fp, SEQUENCER_SYNC, (caddr_t)&idat, l); 976 goto out; 977 case OSS_SYNTH_INFO: 978 error = copyin(SCARG(uap, data), &osi, sizeof osi); 979 if (error) 980 goto out; 981 si.device = osi.device; 982 error = ioctlf(fp, SEQUENCER_INFO, (caddr_t)&si, l); 983 if (error) 984 goto out; 985 strncpy(osi.name, si.name, sizeof osi.name); 986 osi.device = si.device; 987 switch(si.synth_type) { 988 case SYNTH_TYPE_FM: 989 osi.synth_type = OSS_SYNTH_TYPE_FM; break; 990 case SYNTH_TYPE_SAMPLE: 991 osi.synth_type = OSS_SYNTH_TYPE_SAMPLE; break; 992 case SYNTH_TYPE_MIDI: 993 osi.synth_type = OSS_SYNTH_TYPE_MIDI; break; 994 default: 995 osi.synth_type = 0; break; 996 } 997 switch(si.synth_subtype) { 998 case SYNTH_SUB_FM_TYPE_ADLIB: 999 osi.synth_subtype = OSS_FM_TYPE_ADLIB; break; 1000 case SYNTH_SUB_FM_TYPE_OPL3: 1001 osi.synth_subtype = OSS_FM_TYPE_OPL3; break; 1002 case SYNTH_SUB_MIDI_TYPE_MPU401: 1003 osi.synth_subtype = OSS_MIDI_TYPE_MPU401; break; 1004 case SYNTH_SUB_SAMPLE_TYPE_BASIC: 1005 osi.synth_subtype = OSS_SAMPLE_TYPE_BASIC; break; 1006 default: 1007 osi.synth_subtype = 0; break; 1008 } 1009 osi.perc_mode = 0; 1010 osi.nr_voices = si.nr_voices; 1011 osi.nr_drums = 0; 1012 osi.instr_bank_size = si.instr_bank_size; 1013 osi.capabilities = 0; 1014 if (si.capabilities & SYNTH_CAP_OPL3) 1015 osi.capabilities |= OSS_SYNTH_CAP_OPL3; 1016 if (si.capabilities & SYNTH_CAP_INPUT) 1017 osi.capabilities |= OSS_SYNTH_CAP_INPUT; 1018 error = copyout(&osi, SCARG(uap, data), sizeof osi); 1019 goto out; 1020 case OSS_SEQ_CTRLRATE: 1021 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1022 if (error) 1023 goto out; 1024 error = ioctlf(fp, SEQUENCER_CTRLRATE, (caddr_t)&idat, l); 1025 if (error) 1026 goto out; 1027 retval[0] = idat; 1028 break; 1029 case OSS_SEQ_GETOUTCOUNT: 1030 error = ioctlf(fp, SEQUENCER_GETOUTCOUNT, (caddr_t)&idat, l); 1031 if (error) 1032 goto out; 1033 retval[0] = idat; 1034 break; 1035 case OSS_SEQ_GETINCOUNT: 1036 error = ioctlf(fp, SEQUENCER_GETINCOUNT, (caddr_t)&idat, l); 1037 if (error) 1038 goto out; 1039 retval[0] = idat; 1040 break; 1041 case OSS_SEQ_NRSYNTHS: 1042 error = ioctlf(fp, SEQUENCER_NRSYNTHS, (caddr_t)&idat, l); 1043 if (error) 1044 goto out; 1045 retval[0] = idat; 1046 break; 1047 case OSS_SEQ_NRMIDIS: 1048 error = ioctlf(fp, SEQUENCER_NRMIDIS, (caddr_t)&idat, l); 1049 if (error) 1050 goto out; 1051 retval[0] = idat; 1052 break; 1053 case OSS_SEQ_THRESHOLD: 1054 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1055 if (error) 1056 goto out; 1057 error = ioctlf(fp, SEQUENCER_THRESHOLD, (caddr_t)&idat, l); 1058 goto out; 1059 case OSS_MEMAVL: 1060 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1061 if (error) 1062 goto out; 1063 error = ioctlf(fp, SEQUENCER_MEMAVL, (caddr_t)&idat, l); 1064 if (error) 1065 goto out; 1066 retval[0] = idat; 1067 break; 1068 case OSS_SEQ_PANIC: 1069 error = ioctlf(fp, SEQUENCER_PANIC, (caddr_t)&idat, l); 1070 goto out; 1071 case OSS_SEQ_OUTOFBAND: 1072 error = copyin(SCARG(uap, data), &oser, sizeof oser); 1073 if (error) 1074 goto out; 1075 error = ioctlf(fp, SEQUENCER_OUTOFBAND, (caddr_t)&oser, l); 1076 if (error) 1077 goto out; 1078 break; 1079 case OSS_SEQ_GETTIME: 1080 error = ioctlf(fp, SEQUENCER_GETTIME, (caddr_t)&idat, l); 1081 if (error) 1082 goto out; 1083 retval[0] = idat; 1084 break; 1085 case OSS_TMR_TIMEBASE: 1086 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1087 if (error) 1088 goto out; 1089 error = ioctlf(fp, SEQUENCER_TMR_TIMEBASE, (caddr_t)&idat, l); 1090 if (error) 1091 goto out; 1092 retval[0] = idat; 1093 break; 1094 case OSS_TMR_START: 1095 error = ioctlf(fp, SEQUENCER_TMR_START, (caddr_t)&idat, l); 1096 goto out; 1097 case OSS_TMR_STOP: 1098 error = ioctlf(fp, SEQUENCER_TMR_STOP, (caddr_t)&idat, l); 1099 goto out; 1100 case OSS_TMR_CONTINUE: 1101 error = ioctlf(fp, SEQUENCER_TMR_CONTINUE, (caddr_t)&idat, l); 1102 goto out; 1103 case OSS_TMR_TEMPO: 1104 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1105 if (error) 1106 goto out; 1107 error = ioctlf(fp, SEQUENCER_TMR_TEMPO, (caddr_t)&idat, l); 1108 if (error) 1109 goto out; 1110 retval[0] = idat; 1111 break; 1112 case OSS_TMR_SOURCE: 1113 error = copyin(SCARG(uap, data), &idat1, sizeof idat); 1114 if (error) 1115 goto out; 1116 idat = 0; 1117 if (idat1 & OSS_TMR_INTERNAL) idat |= SEQUENCER_TMR_INTERNAL; 1118 error = ioctlf(fp, SEQUENCER_TMR_SOURCE, (caddr_t)&idat, l); 1119 if (error) 1120 goto out; 1121 idat1 = idat; 1122 if (idat1 & SEQUENCER_TMR_INTERNAL) idat |= OSS_TMR_INTERNAL; 1123 retval[0] = idat; 1124 break; 1125 case OSS_TMR_METRONOME: 1126 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1127 if (error) 1128 goto out; 1129 error = ioctlf(fp, SEQUENCER_TMR_METRONOME, (caddr_t)&idat, l); 1130 goto out; 1131 case OSS_TMR_SELECT: 1132 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1133 if (error) 1134 goto out; 1135 retval[0] = idat; 1136 error = ioctlf(fp, SEQUENCER_TMR_SELECT, (caddr_t)&idat, l); 1137 goto out; 1138 default: 1139 error = EINVAL; 1140 goto out; 1141 } 1142 1143 error = copyout(&idat, SCARG(uap, data), sizeof idat); 1144 out: 1145 FILE_UNUSE(fp, l); 1146 return error; 1147 } 1148 1149 /* 1150 * Check that the blocksize is a power of 2 as OSS wants. 1151 * If not, set it to be. 1152 */ 1153 static void 1154 setblocksize(fp, info, l) 1155 struct file *fp; 1156 struct audio_info *info; 1157 struct lwp *l; 1158 { 1159 struct audio_info set; 1160 int s; 1161 1162 if (info->blocksize & (info->blocksize-1)) { 1163 for(s = 32; s < info->blocksize; s <<= 1) 1164 ; 1165 AUDIO_INITINFO(&set); 1166 set.blocksize = s; 1167 fp->f_ops->fo_ioctl(fp, AUDIO_SETINFO, (caddr_t)&set, l); 1168 fp->f_ops->fo_ioctl(fp, AUDIO_GETINFO, (caddr_t)info, l); 1169 } 1170 } 1171
Indexes created Tue Sep 23 07:09:52 GMT 2025