ossaudio.c revision 1.45
1 /* $NetBSD: ossaudio.c,v 1.45 2003/06/29 22:29:41 fvdl Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: ossaudio.c,v 1.45 2003/06/29 22:29:41 fvdl 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 proc *)); 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 proc *)); 73 74 75 int 76 oss_ioctl_audio(p, uap, retval) 77 struct proc *p; 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 file *fp; 86 struct filedesc *fdp; 87 u_long com; 88 struct audio_info tmpinfo; 89 struct audio_offset tmpoffs; 90 struct oss_audio_buf_info bufinfo; 91 struct oss_count_info cntinfo; 92 struct audio_encoding tmpenc; 93 u_int u; 94 int idat, idata; 95 int error = 0; 96 int (*ioctlf)(struct file *, u_long, void *, struct proc *); 97 98 fdp = p->p_fd; 99 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 100 return (EBADF); 101 102 FILE_USE(fp); 103 104 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 105 error = EBADF; 106 goto out; 107 } 108 109 com = SCARG(uap, com); 110 DPRINTF(("oss_ioctl_audio: com=%08lx\n", com)); 111 112 retval[0] = 0; 113 114 ioctlf = fp->f_ops->fo_ioctl; 115 switch (com) { 116 case OSS_SNDCTL_DSP_RESET: 117 error = ioctlf(fp, AUDIO_FLUSH, (caddr_t)0, p); 118 if (error) 119 goto out; 120 break; 121 case OSS_SNDCTL_DSP_SYNC: 122 error = ioctlf(fp, AUDIO_DRAIN, (caddr_t)0, p); 123 if (error) 124 goto out; 125 break; 126 case OSS_SNDCTL_DSP_POST: 127 /* This call is merely advisory, and may be a nop. */ 128 break; 129 case OSS_SNDCTL_DSP_SPEED: 130 AUDIO_INITINFO(&tmpinfo); 131 error = copyin(SCARG(uap, data), &idat, sizeof idat); 132 if (error) 133 goto out; 134 tmpinfo.play.sample_rate = 135 tmpinfo.record.sample_rate = idat; 136 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 137 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_SPEED %d = %d\n", 138 idat, error)); 139 if (error) 140 goto out; 141 /* fall into ... */ 142 case OSS_SOUND_PCM_READ_RATE: 143 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 144 if (error) 145 goto out; 146 idat = tmpinfo.play.sample_rate; 147 error = copyout(&idat, SCARG(uap, data), sizeof idat); 148 if (error) 149 goto out; 150 break; 151 case OSS_SNDCTL_DSP_STEREO: 152 AUDIO_INITINFO(&tmpinfo); 153 error = copyin(SCARG(uap, data), &idat, sizeof idat); 154 if (error) 155 goto out; 156 tmpinfo.play.channels = 157 tmpinfo.record.channels = idat ? 2 : 1; 158 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 159 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 160 if (error) 161 goto out; 162 idat = tmpinfo.play.channels - 1; 163 error = copyout(&idat, SCARG(uap, data), sizeof idat); 164 if (error) 165 goto out; 166 break; 167 case OSS_SNDCTL_DSP_GETBLKSIZE: 168 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 169 if (error) 170 goto out; 171 setblocksize(fp, &tmpinfo, p); 172 idat = tmpinfo.blocksize; 173 error = copyout(&idat, SCARG(uap, data), sizeof idat); 174 if (error) 175 goto out; 176 break; 177 case OSS_SNDCTL_DSP_SETFMT: 178 AUDIO_INITINFO(&tmpinfo); 179 error = copyin(SCARG(uap, data), &idat, sizeof idat); 180 if (error) 181 goto out; 182 switch (idat) { 183 case OSS_AFMT_MU_LAW: 184 tmpinfo.play.precision = 185 tmpinfo.record.precision = 8; 186 tmpinfo.play.encoding = 187 tmpinfo.record.encoding = AUDIO_ENCODING_ULAW; 188 break; 189 case OSS_AFMT_A_LAW: 190 tmpinfo.play.precision = 191 tmpinfo.record.precision = 8; 192 tmpinfo.play.encoding = 193 tmpinfo.record.encoding = AUDIO_ENCODING_ALAW; 194 break; 195 case OSS_AFMT_U8: 196 tmpinfo.play.precision = 197 tmpinfo.record.precision = 8; 198 tmpinfo.play.encoding = 199 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR; 200 break; 201 case OSS_AFMT_S8: 202 tmpinfo.play.precision = 203 tmpinfo.record.precision = 8; 204 tmpinfo.play.encoding = 205 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR; 206 break; 207 case OSS_AFMT_S16_LE: 208 tmpinfo.play.precision = 209 tmpinfo.record.precision = 16; 210 tmpinfo.play.encoding = 211 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_LE; 212 break; 213 case OSS_AFMT_S16_BE: 214 tmpinfo.play.precision = 215 tmpinfo.record.precision = 16; 216 tmpinfo.play.encoding = 217 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_BE; 218 break; 219 case OSS_AFMT_U16_LE: 220 tmpinfo.play.precision = 221 tmpinfo.record.precision = 16; 222 tmpinfo.play.encoding = 223 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_LE; 224 break; 225 case OSS_AFMT_U16_BE: 226 tmpinfo.play.precision = 227 tmpinfo.record.precision = 16; 228 tmpinfo.play.encoding = 229 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_BE; 230 break; 231 default: 232 error = EINVAL; 233 goto out; 234 } 235 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 236 /* fall into ... */ 237 case OSS_SOUND_PCM_READ_BITS: 238 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 239 if (error) 240 goto out; 241 switch (tmpinfo.play.encoding) { 242 case AUDIO_ENCODING_ULAW: 243 idat = OSS_AFMT_MU_LAW; 244 break; 245 case AUDIO_ENCODING_ALAW: 246 idat = OSS_AFMT_A_LAW; 247 break; 248 case AUDIO_ENCODING_SLINEAR_LE: 249 if (tmpinfo.play.precision == 16) 250 idat = OSS_AFMT_S16_LE; 251 else 252 idat = OSS_AFMT_S8; 253 break; 254 case AUDIO_ENCODING_SLINEAR_BE: 255 if (tmpinfo.play.precision == 16) 256 idat = OSS_AFMT_S16_BE; 257 else 258 idat = OSS_AFMT_S8; 259 break; 260 case AUDIO_ENCODING_ULINEAR_LE: 261 if (tmpinfo.play.precision == 16) 262 idat = OSS_AFMT_U16_LE; 263 else 264 idat = OSS_AFMT_U8; 265 break; 266 case AUDIO_ENCODING_ULINEAR_BE: 267 if (tmpinfo.play.precision == 16) 268 idat = OSS_AFMT_U16_BE; 269 else 270 idat = OSS_AFMT_U8; 271 break; 272 case AUDIO_ENCODING_ADPCM: 273 idat = OSS_AFMT_IMA_ADPCM; 274 break; 275 } 276 error = copyout(&idat, SCARG(uap, data), sizeof idat); 277 if (error) 278 goto out; 279 break; 280 case OSS_SNDCTL_DSP_CHANNELS: 281 AUDIO_INITINFO(&tmpinfo); 282 error = copyin(SCARG(uap, data), &idat, sizeof idat); 283 if (error) 284 goto out; 285 tmpinfo.play.channels = 286 tmpinfo.record.channels = idat; 287 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 288 /* fall into ... */ 289 case OSS_SOUND_PCM_READ_CHANNELS: 290 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 291 if (error) 292 goto out; 293 idat = tmpinfo.play.channels; 294 error = copyout(&idat, SCARG(uap, data), sizeof idat); 295 if (error) 296 goto out; 297 break; 298 case OSS_SOUND_PCM_WRITE_FILTER: 299 case OSS_SOUND_PCM_READ_FILTER: 300 error = EINVAL; /* XXX unimplemented */ 301 goto out; 302 case OSS_SNDCTL_DSP_SUBDIVIDE: 303 error = copyin(SCARG(uap, data), &idat, sizeof idat); 304 if (error) 305 goto out; 306 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 307 setblocksize(fp, &tmpinfo, p); 308 if (error) 309 goto out; 310 if (idat == 0) 311 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 312 idat = (tmpinfo.play.buffer_size / idat) & -4; 313 AUDIO_INITINFO(&tmpinfo); 314 tmpinfo.blocksize = idat; 315 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 316 if (error) 317 goto out; 318 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; 319 error = copyout(&idat, SCARG(uap, data), sizeof idat); 320 if (error) 321 goto out; 322 break; 323 case OSS_SNDCTL_DSP_SETFRAGMENT: 324 AUDIO_INITINFO(&tmpinfo); 325 error = copyin(SCARG(uap, data), &idat, sizeof idat); 326 if (error) 327 goto out; 328 if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17) { 329 error = EINVAL; 330 goto out; 331 } 332 tmpinfo.blocksize = 1 << (idat & 0xffff); 333 tmpinfo.hiwat = (idat >> 16) & 0x7fff; 334 DPRINTF(("oss_audio: SETFRAGMENT blksize=%d, hiwat=%d\n", 335 tmpinfo.blocksize, tmpinfo.hiwat)); 336 if (tmpinfo.hiwat == 0) /* 0 means set to max */ 337 tmpinfo.hiwat = 65536; 338 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 339 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 340 if (error) 341 goto out; 342 u = tmpinfo.blocksize; 343 for(idat = 0; u > 1; idat++, u >>= 1) 344 ; 345 idat |= (tmpinfo.hiwat & 0x7fff) << 16; 346 error = copyout(&idat, SCARG(uap, data), sizeof idat); 347 if (error) 348 goto out; 349 break; 350 case OSS_SNDCTL_DSP_GETFMTS: 351 for(idat = 0, tmpenc.index = 0; 352 ioctlf(fp, AUDIO_GETENC, (caddr_t)&tmpenc, p) == 0; 353 tmpenc.index++) { 354 switch(tmpenc.encoding) { 355 case AUDIO_ENCODING_ULAW: 356 idat |= OSS_AFMT_MU_LAW; 357 break; 358 case AUDIO_ENCODING_ALAW: 359 idat |= OSS_AFMT_A_LAW; 360 break; 361 case AUDIO_ENCODING_SLINEAR: 362 idat |= OSS_AFMT_S8; 363 break; 364 case AUDIO_ENCODING_SLINEAR_LE: 365 if (tmpenc.precision == 16) 366 idat |= OSS_AFMT_S16_LE; 367 else 368 idat |= OSS_AFMT_S8; 369 break; 370 case AUDIO_ENCODING_SLINEAR_BE: 371 if (tmpenc.precision == 16) 372 idat |= OSS_AFMT_S16_BE; 373 else 374 idat |= OSS_AFMT_S8; 375 break; 376 case AUDIO_ENCODING_ULINEAR: 377 idat |= OSS_AFMT_U8; 378 break; 379 case AUDIO_ENCODING_ULINEAR_LE: 380 if (tmpenc.precision == 16) 381 idat |= OSS_AFMT_U16_LE; 382 else 383 idat |= OSS_AFMT_U8; 384 break; 385 case AUDIO_ENCODING_ULINEAR_BE: 386 if (tmpenc.precision == 16) 387 idat |= OSS_AFMT_U16_BE; 388 else 389 idat |= OSS_AFMT_U8; 390 break; 391 case AUDIO_ENCODING_ADPCM: 392 idat |= OSS_AFMT_IMA_ADPCM; 393 break; 394 default: 395 break; 396 } 397 } 398 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETFMTS = %x\n", idat)); 399 error = copyout(&idat, SCARG(uap, data), sizeof idat); 400 if (error) 401 goto out; 402 break; 403 case OSS_SNDCTL_DSP_GETOSPACE: 404 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 405 if (error) 406 goto out; 407 setblocksize(fp, &tmpinfo, p); 408 bufinfo.fragsize = tmpinfo.blocksize; 409 bufinfo.fragments = tmpinfo.hiwat - 410 (tmpinfo.play.seek + tmpinfo.blocksize - 1) / 411 tmpinfo.blocksize; 412 bufinfo.fragstotal = tmpinfo.hiwat; 413 bufinfo.bytes = 414 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.play.seek; 415 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 416 if (error) 417 goto out; 418 break; 419 case OSS_SNDCTL_DSP_GETISPACE: 420 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 421 if (error) 422 goto out; 423 setblocksize(fp, &tmpinfo, p); 424 bufinfo.fragsize = tmpinfo.blocksize; 425 bufinfo.fragments = tmpinfo.hiwat - 426 (tmpinfo.record.seek + tmpinfo.blocksize - 1) / 427 tmpinfo.blocksize; 428 bufinfo.fragstotal = tmpinfo.hiwat; 429 bufinfo.bytes = 430 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.record.seek; 431 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETxSPACE = %d %d %d %d\n", 432 bufinfo.fragsize, bufinfo.fragments, 433 bufinfo.fragstotal, bufinfo.bytes)); 434 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); 435 if (error) 436 goto out; 437 break; 438 case OSS_SNDCTL_DSP_NONBLOCK: 439 idat = 1; 440 error = ioctlf(fp, FIONBIO, (caddr_t)&idat, p); 441 if (error) 442 goto out; 443 break; 444 case OSS_SNDCTL_DSP_GETCAPS: 445 error = ioctlf(fp, AUDIO_GETPROPS, (caddr_t)&idata, p); 446 if (error) 447 goto out; 448 idat = OSS_DSP_CAP_TRIGGER; /* pretend we have trigger */ 449 if (idata & AUDIO_PROP_FULLDUPLEX) 450 idat |= OSS_DSP_CAP_DUPLEX; 451 if (idata & AUDIO_PROP_MMAP) 452 idat |= OSS_DSP_CAP_MMAP; 453 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETCAPS = %x\n", idat)); 454 error = copyout(&idat, SCARG(uap, data), sizeof idat); 455 if (error) 456 goto out; 457 break; 458 #if 0 459 case OSS_SNDCTL_DSP_GETTRIGGER: 460 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); 461 if (error) 462 goto out; 463 idat = (tmpinfo.play.pause ? 0 : OSS_PCM_ENABLE_OUTPUT) | 464 (tmpinfo.record.pause ? 0 : OSS_PCM_ENABLE_INPUT); 465 error = copyout(&idat, SCARG(uap, data), sizeof idat); 466 if (error) 467 goto out; 468 break; 469 case OSS_SNDCTL_DSP_SETTRIGGER: 470 AUDIO_INITINFO(&tmpinfo); 471 error = copyin(SCARG(uap, data), &idat, sizeof idat); 472 if (error) 473 goto out; 474 tmpinfo.play.pause = (idat & OSS_PCM_ENABLE_OUTPUT) == 0; 475 tmpinfo.record.pause = (idat & OSS_PCM_ENABLE_INPUT) == 0; 476 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); 477 error = copyout(&idat, SCARG(uap, data), sizeof idat); 478 if (error) 479 goto out; 480 break; 481 #else 482 case OSS_SNDCTL_DSP_GETTRIGGER: 483 case OSS_SNDCTL_DSP_SETTRIGGER: 484 /* XXX Do nothing for now. */ 485 idat = OSS_PCM_ENABLE_OUTPUT; 486 error = copyout(&idat, SCARG(uap, data), sizeof idat); 487 goto out; 488 #endif 489 case OSS_SNDCTL_DSP_GETIPTR: 490 error = ioctlf(fp, AUDIO_GETIOFFS, (caddr_t)&tmpoffs, p); 491 if (error) 492 goto out; 493 cntinfo.bytes = tmpoffs.samples; 494 cntinfo.blocks = tmpoffs.deltablks; 495 cntinfo.ptr = tmpoffs.offset; 496 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 497 if (error) 498 goto out; 499 break; 500 case OSS_SNDCTL_DSP_GETOPTR: 501 error = ioctlf(fp, AUDIO_GETOOFFS, (caddr_t)&tmpoffs, p); 502 if (error) 503 goto out; 504 cntinfo.bytes = tmpoffs.samples; 505 cntinfo.blocks = tmpoffs.deltablks; 506 cntinfo.ptr = tmpoffs.offset; 507 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); 508 if (error) 509 goto out; 510 break; 511 case OSS_SNDCTL_DSP_SETDUPLEX: 512 idat = 1; 513 error = ioctlf(fp, AUDIO_SETFD, (caddr_t)&idat, p); 514 goto out; 515 case OSS_SNDCTL_DSP_MAPINBUF: 516 case OSS_SNDCTL_DSP_MAPOUTBUF: 517 case OSS_SNDCTL_DSP_SETSYNCRO: 518 case OSS_SNDCTL_DSP_PROFILE: 519 error = EINVAL; 520 goto out; 521 default: 522 error = EINVAL; 523 goto out; 524 } 525 526 out: 527 FILE_UNUSE(fp, p); 528 return error; 529 } 530 531 /* If the NetBSD mixer device should have more than 32 devices 532 * some will not be available to Linux */ 533 #define NETBSD_MAXDEVS 64 534 struct audiodevinfo { 535 int done; 536 dev_t dev; 537 int16_t devmap[OSS_SOUND_MIXER_NRDEVICES], 538 rdevmap[NETBSD_MAXDEVS]; 539 char names[NETBSD_MAXDEVS][MAX_AUDIO_DEV_LEN]; 540 int enum2opaque[NETBSD_MAXDEVS]; 541 u_long devmask, recmask, stereomask; 542 u_long caps, source; 543 }; 544 545 static int 546 opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq) 547 { 548 int i, o; 549 550 for (i = 0; i < NETBSD_MAXDEVS; i++) { 551 o = di->enum2opaque[i]; 552 if (o == opq) 553 break; 554 if (o == -1 && label != NULL && 555 !strncmp(di->names[i], label->name, sizeof di->names[i])) { 556 di->enum2opaque[i] = opq; 557 break; 558 } 559 } 560 if (i >= NETBSD_MAXDEVS) 561 i = -1; 562 /*printf("opq_to_enum %s %d -> %d\n", label->name, opq, i);*/ 563 return (i); 564 } 565 566 static int 567 enum_to_ord(struct audiodevinfo *di, int enm) 568 { 569 if (enm >= NETBSD_MAXDEVS) 570 return (-1); 571 572 /*printf("enum_to_ord %d -> %d\n", enm, di->enum2opaque[enm]);*/ 573 return (di->enum2opaque[enm]); 574 } 575 576 static int 577 enum_to_mask(struct audiodevinfo *di, int enm) 578 { 579 int m; 580 if (enm >= NETBSD_MAXDEVS) 581 return (0); 582 583 m = di->enum2opaque[enm]; 584 if (m == -1) 585 m = 0; 586 /*printf("enum_to_mask %d -> %d\n", enm, di->enum2opaque[enm]);*/ 587 return (m); 588 } 589 590 /* 591 * Collect the audio device information to allow faster 592 * emulation of the Linux mixer ioctls. Cache the information 593 * to eliminate the overhead of repeating all the ioctls needed 594 * to collect the information. 595 */ 596 static struct audiodevinfo * 597 getdevinfo(fp, p) 598 struct file *fp; 599 struct proc *p; 600 { 601 mixer_devinfo_t mi; 602 int i, j, e; 603 static const struct { 604 const char *name; 605 int code; 606 } *dp, devs[] = { 607 { AudioNmicrophone, OSS_SOUND_MIXER_MIC }, 608 { AudioNline, OSS_SOUND_MIXER_LINE }, 609 { AudioNcd, OSS_SOUND_MIXER_CD }, 610 { AudioNdac, OSS_SOUND_MIXER_PCM }, 611 { AudioNaux, OSS_SOUND_MIXER_LINE1 }, 612 { AudioNrecord, OSS_SOUND_MIXER_IMIX }, 613 { AudioNmaster, OSS_SOUND_MIXER_VOLUME }, 614 { AudioNtreble, OSS_SOUND_MIXER_TREBLE }, 615 { AudioNbass, OSS_SOUND_MIXER_BASS }, 616 { AudioNspeaker, OSS_SOUND_MIXER_SPEAKER }, 617 /* { AudioNheadphone, ?? },*/ 618 { AudioNoutput, OSS_SOUND_MIXER_OGAIN }, 619 { AudioNinput, OSS_SOUND_MIXER_IGAIN }, 620 /* { AudioNmaster, OSS_SOUND_MIXER_SPEAKER },*/ 621 /* { AudioNstereo, ?? },*/ 622 /* { AudioNmono, ?? },*/ 623 { AudioNfmsynth, OSS_SOUND_MIXER_SYNTH }, 624 /* { AudioNwave, OSS_SOUND_MIXER_PCM },*/ 625 { AudioNmidi, OSS_SOUND_MIXER_SYNTH }, 626 /* { AudioNmixerout, ?? },*/ 627 { 0, -1 } 628 }; 629 int (*ioctlf)(struct file *, u_long, void *, struct proc *) = 630 fp->f_ops->fo_ioctl; 631 struct vnode *vp; 632 struct vattr va; 633 static struct audiodevinfo devcache = { 0 }; 634 struct audiodevinfo *di = &devcache; 635 636 /* 637 * Figure out what device it is so we can check if the 638 * cached data is valid. 639 */ 640 vp = (struct vnode *)fp->f_data; 641 if (vp->v_type != VCHR) 642 return 0; 643 if (VOP_GETATTR(vp, &va, p->p_ucred, p)) 644 return 0; 645 if (di->done && di->dev == va.va_rdev) 646 return di; 647 648 di->done = 1; 649 di->dev = va.va_rdev; 650 di->devmask = 0; 651 di->recmask = 0; 652 di->stereomask = 0; 653 di->source = ~0; 654 di->caps = 0; 655 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 656 di->devmap[i] = -1; 657 for(i = 0; i < NETBSD_MAXDEVS; i++) { 658 di->rdevmap[i] = -1; 659 di->names[i][0] = '\0'; 660 di->enum2opaque[i] = -1; 661 } 662 for(i = 0; i < NETBSD_MAXDEVS; i++) { 663 mi.index = i; 664 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0) 665 break; 666 switch(mi.type) { 667 case AUDIO_MIXER_VALUE: 668 for(dp = devs; dp->name; dp++) 669 if (strcmp(dp->name, mi.label.name) == 0) 670 break; 671 if (dp->code >= 0) { 672 di->devmap[dp->code] = i; 673 di->rdevmap[i] = dp->code; 674 di->devmask |= 1 << dp->code; 675 if (mi.un.v.num_channels == 2) 676 di->stereomask |= 1 << dp->code; 677 strncpy(di->names[i], mi.label.name, 678 sizeof di->names[i]); 679 } 680 break; 681 } 682 } 683 for(i = 0; i < NETBSD_MAXDEVS; i++) { 684 mi.index = i; 685 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0) 686 break; 687 if (strcmp(mi.label.name, AudioNsource) != 0) 688 continue; 689 di->source = i; 690 switch(mi.type) { 691 case AUDIO_MIXER_ENUM: 692 for(j = 0; j < mi.un.e.num_mem; j++) { 693 e = opaque_to_enum(di, 694 &mi.un.e.member[j].label, 695 mi.un.e.member[j].ord); 696 if (e >= 0) 697 di->recmask |= 1 << di->rdevmap[e]; 698 } 699 di->caps = OSS_SOUND_CAP_EXCL_INPUT; 700 break; 701 case AUDIO_MIXER_SET: 702 for(j = 0; j < mi.un.s.num_mem; j++) { 703 e = opaque_to_enum(di, 704 &mi.un.s.member[j].label, 705 mi.un.s.member[j].mask); 706 if (e >= 0) 707 di->recmask |= 1 << di->rdevmap[e]; 708 } 709 break; 710 } 711 } 712 return di; 713 } 714 715 int 716 oss_ioctl_mixer(p, uap, retval) 717 struct proc *p; 718 struct oss_sys_ioctl_args /* { 719 syscallarg(int) fd; 720 syscallarg(u_long) com; 721 syscallarg(caddr_t) data; 722 } */ *uap; 723 register_t *retval; 724 { 725 struct file *fp; 726 struct filedesc *fdp; 727 u_long com; 728 struct audiodevinfo *di; 729 mixer_ctrl_t mc; 730 struct oss_mixer_info omi; 731 struct audio_device adev; 732 int idat; 733 int i; 734 int error; 735 int l, r, n, e; 736 int (*ioctlf)(struct file *, u_long, void *, struct proc *); 737 738 fdp = p->p_fd; 739 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 740 return (EBADF); 741 742 FILE_USE(fp); 743 744 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 745 error = EBADF; 746 goto out; 747 } 748 749 com = SCARG(uap, com); 750 DPRINTF(("oss_ioctl_mixer: com=%08lx\n", com)); 751 752 retval[0] = 0; 753 754 di = getdevinfo(fp, p); 755 if (di == 0) { 756 error = EINVAL; 757 goto out; 758 } 759 760 ioctlf = fp->f_ops->fo_ioctl; 761 switch (com) { 762 case OSS_GET_VERSION: 763 idat = OSS_SOUND_VERSION; 764 break; 765 case OSS_SOUND_MIXER_INFO: 766 case OSS_SOUND_OLD_MIXER_INFO: 767 error = ioctlf(fp, AUDIO_GETDEV, (caddr_t)&adev, p); 768 if (error) 769 goto out; 770 omi.modify_counter = 1; 771 strncpy(omi.id, adev.name, sizeof omi.id); 772 strncpy(omi.name, adev.name, sizeof omi.name); 773 error = copyout(&omi, SCARG(uap, data), OSS_IOCTL_SIZE(com)); 774 goto out; 775 case OSS_SOUND_MIXER_READ_RECSRC: 776 if (di->source == -1) { 777 error = EINVAL; 778 goto out; 779 } 780 mc.dev = di->source; 781 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 782 mc.type = AUDIO_MIXER_ENUM; 783 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 784 if (error) 785 goto out; 786 e = opaque_to_enum(di, NULL, mc.un.ord); 787 if (e >= 0) 788 idat = 1 << di->rdevmap[e]; 789 } else { 790 mc.type = AUDIO_MIXER_SET; 791 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 792 if (error) 793 goto out; 794 e = opaque_to_enum(di, NULL, mc.un.mask); 795 if (e >= 0) 796 idat = 1 << di->rdevmap[e]; 797 } 798 break; 799 case OSS_SOUND_MIXER_READ_DEVMASK: 800 idat = di->devmask; 801 break; 802 case OSS_SOUND_MIXER_READ_RECMASK: 803 idat = di->recmask; 804 break; 805 case OSS_SOUND_MIXER_READ_STEREODEVS: 806 idat = di->stereomask; 807 break; 808 case OSS_SOUND_MIXER_READ_CAPS: 809 idat = di->caps; 810 break; 811 case OSS_SOUND_MIXER_WRITE_RECSRC: 812 case OSS_SOUND_MIXER_WRITE_R_RECSRC: 813 if (di->source == -1) { 814 error = EINVAL; 815 goto out; 816 } 817 mc.dev = di->source; 818 error = copyin(SCARG(uap, data), &idat, sizeof idat); 819 if (error) 820 goto out; 821 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) { 822 mc.type = AUDIO_MIXER_ENUM; 823 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) 824 if (idat & (1 << i)) 825 break; 826 if (i >= OSS_SOUND_MIXER_NRDEVICES || 827 di->devmap[i] == -1) { 828 error = EINVAL; 829 goto out; 830 } 831 mc.un.ord = enum_to_ord(di, di->devmap[i]); 832 } else { 833 mc.type = AUDIO_MIXER_SET; 834 mc.un.mask = 0; 835 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) { 836 if (idat & (1 << i)) { 837 if (di->devmap[i] == -1) { 838 error = EINVAL; 839 goto out; 840 } 841 mc.un.mask |= enum_to_mask(di, di->devmap[i]); 842 } 843 } 844 } 845 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p); 846 goto out; 847 default: 848 if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com && 849 com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) { 850 n = OSS_GET_DEV(com); 851 if (di->devmap[n] == -1) { 852 error = EINVAL; 853 goto out; 854 } 855 doread: 856 mc.dev = di->devmap[n]; 857 mc.type = AUDIO_MIXER_VALUE; 858 mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1; 859 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p); 860 if (error) 861 goto out; 862 if (mc.un.value.num_channels != 2) { 863 l = r = mc.un.value.level[AUDIO_MIXER_LEVEL_MONO]; 864 } else { 865 l = mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT]; 866 r = mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT]; 867 } 868 idat = TO_OSSVOL(l) | (TO_OSSVOL(r) << 8); 869 DPRINTF(("OSS_MIXER_READ n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 870 n, di->devmap[n], l, r, idat)); 871 break; 872 } else if ((OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_FIRST) <= com && 873 com < OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_NRDEVICES)) || 874 (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 875 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES))) { 876 n = OSS_GET_DEV(com); 877 if (di->devmap[n] == -1) { 878 error = EINVAL; 879 goto out; 880 } 881 error = copyin(SCARG(uap, data), &idat, sizeof idat); 882 if (error) 883 goto out; 884 l = FROM_OSSVOL( idat & 0xff); 885 r = FROM_OSSVOL((idat >> 8) & 0xff); 886 mc.dev = di->devmap[n]; 887 mc.type = AUDIO_MIXER_VALUE; 888 if (di->stereomask & (1<<n)) { 889 mc.un.value.num_channels = 2; 890 mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l; 891 mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r; 892 } else { 893 mc.un.value.num_channels = 1; 894 mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r)/2; 895 } 896 DPRINTF(("OSS_MIXER_WRITE n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", 897 n, di->devmap[n], l, r, idat)); 898 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p); 899 if (error) 900 goto out; 901 if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com && 902 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) { 903 error = 0; 904 goto out; 905 } 906 goto doread; 907 } else { 908 #ifdef AUDIO_DEBUG 909 printf("oss_audio: unknown mixer ioctl %04lx\n", com); 910 #endif 911 error = EINVAL; 912 goto out; 913 } 914 } 915 error = copyout(&idat, SCARG(uap, data), sizeof idat); 916 out: 917 FILE_UNUSE(fp, p); 918 return error; 919 } 920 921 /* Sequencer emulation */ 922 int 923 oss_ioctl_sequencer(p, uap, retval) 924 struct proc *p; 925 struct oss_sys_ioctl_args /* { 926 syscallarg(int) fd; 927 syscallarg(u_long) com; 928 syscallarg(caddr_t) data; 929 } */ *uap; 930 register_t *retval; 931 { 932 struct file *fp; 933 struct filedesc *fdp; 934 u_long com; 935 int idat, idat1; 936 struct synth_info si; 937 struct oss_synth_info osi; 938 struct oss_seq_event_rec oser; 939 int error; 940 int (*ioctlf)(struct file *, u_long, void *, struct proc *); 941 942 fdp = p->p_fd; 943 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 944 return (EBADF); 945 946 FILE_USE(fp); 947 948 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 949 error = EBADF; 950 goto out; 951 } 952 953 com = SCARG(uap, com); 954 DPRINTF(("oss_ioctl_sequencer: com=%08lx\n", com)); 955 956 retval[0] = 0; 957 958 ioctlf = fp->f_ops->fo_ioctl; 959 switch (com) { 960 case OSS_SEQ_RESET: 961 error = ioctlf(fp, SEQUENCER_RESET, (caddr_t)&idat, p); 962 goto out; 963 case OSS_SEQ_SYNC: 964 error = ioctlf(fp, SEQUENCER_SYNC, (caddr_t)&idat, p); 965 goto out; 966 case OSS_SYNTH_INFO: 967 error = copyin(SCARG(uap, data), &osi, sizeof osi); 968 if (error) 969 goto out; 970 si.device = osi.device; 971 error = ioctlf(fp, SEQUENCER_INFO, (caddr_t)&si, p); 972 if (error) 973 goto out; 974 strncpy(osi.name, si.name, sizeof osi.name); 975 osi.device = si.device; 976 switch(si.synth_type) { 977 case SYNTH_TYPE_FM: 978 osi.synth_type = OSS_SYNTH_TYPE_FM; break; 979 case SYNTH_TYPE_SAMPLE: 980 osi.synth_type = OSS_SYNTH_TYPE_SAMPLE; break; 981 case SYNTH_TYPE_MIDI: 982 osi.synth_type = OSS_SYNTH_TYPE_MIDI; break; 983 default: 984 osi.synth_type = 0; break; 985 } 986 switch(si.synth_subtype) { 987 case SYNTH_SUB_FM_TYPE_ADLIB: 988 osi.synth_subtype = OSS_FM_TYPE_ADLIB; break; 989 case SYNTH_SUB_FM_TYPE_OPL3: 990 osi.synth_subtype = OSS_FM_TYPE_OPL3; break; 991 case SYNTH_SUB_MIDI_TYPE_MPU401: 992 osi.synth_subtype = OSS_MIDI_TYPE_MPU401; break; 993 case SYNTH_SUB_SAMPLE_TYPE_BASIC: 994 osi.synth_subtype = OSS_SAMPLE_TYPE_BASIC; break; 995 default: 996 osi.synth_subtype = 0; break; 997 } 998 osi.perc_mode = 0; 999 osi.nr_voices = si.nr_voices; 1000 osi.nr_drums = 0; 1001 osi.instr_bank_size = si.instr_bank_size; 1002 osi.capabilities = 0; 1003 if (si.capabilities & SYNTH_CAP_OPL3) 1004 osi.capabilities |= OSS_SYNTH_CAP_OPL3; 1005 if (si.capabilities & SYNTH_CAP_INPUT) 1006 osi.capabilities |= OSS_SYNTH_CAP_INPUT; 1007 error = copyout(&osi, SCARG(uap, data), sizeof osi); 1008 goto out; 1009 case OSS_SEQ_CTRLRATE: 1010 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1011 if (error) 1012 goto out; 1013 error = ioctlf(fp, SEQUENCER_CTRLRATE, (caddr_t)&idat, p); 1014 if (error) 1015 goto out; 1016 retval[0] = idat; 1017 break; 1018 case OSS_SEQ_GETOUTCOUNT: 1019 error = ioctlf(fp, SEQUENCER_GETOUTCOUNT, (caddr_t)&idat, p); 1020 if (error) 1021 goto out; 1022 retval[0] = idat; 1023 break; 1024 case OSS_SEQ_GETINCOUNT: 1025 error = ioctlf(fp, SEQUENCER_GETINCOUNT, (caddr_t)&idat, p); 1026 if (error) 1027 goto out; 1028 retval[0] = idat; 1029 break; 1030 case OSS_SEQ_NRSYNTHS: 1031 error = ioctlf(fp, SEQUENCER_NRSYNTHS, (caddr_t)&idat, p); 1032 if (error) 1033 goto out; 1034 retval[0] = idat; 1035 break; 1036 case OSS_SEQ_NRMIDIS: 1037 error = ioctlf(fp, SEQUENCER_NRMIDIS, (caddr_t)&idat, p); 1038 if (error) 1039 goto out; 1040 retval[0] = idat; 1041 break; 1042 case OSS_SEQ_THRESHOLD: 1043 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1044 if (error) 1045 goto out; 1046 error = ioctlf(fp, SEQUENCER_THRESHOLD, (caddr_t)&idat, p); 1047 goto out; 1048 case OSS_MEMAVL: 1049 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1050 if (error) 1051 goto out; 1052 error = ioctlf(fp, SEQUENCER_MEMAVL, (caddr_t)&idat, p); 1053 if (error) 1054 goto out; 1055 retval[0] = idat; 1056 break; 1057 case OSS_SEQ_PANIC: 1058 error = ioctlf(fp, SEQUENCER_PANIC, (caddr_t)&idat, p); 1059 goto out; 1060 case OSS_SEQ_OUTOFBAND: 1061 error = copyin(SCARG(uap, data), &oser, sizeof oser); 1062 if (error) 1063 goto out; 1064 error = ioctlf(fp, SEQUENCER_OUTOFBAND, (caddr_t)&oser, p); 1065 if (error) 1066 goto out; 1067 break; 1068 case OSS_SEQ_GETTIME: 1069 error = ioctlf(fp, SEQUENCER_GETTIME, (caddr_t)&idat, p); 1070 if (error) 1071 goto out; 1072 retval[0] = idat; 1073 break; 1074 case OSS_TMR_TIMEBASE: 1075 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1076 if (error) 1077 goto out; 1078 error = ioctlf(fp, SEQUENCER_TMR_TIMEBASE, (caddr_t)&idat, p); 1079 if (error) 1080 goto out; 1081 retval[0] = idat; 1082 break; 1083 case OSS_TMR_START: 1084 error = ioctlf(fp, SEQUENCER_TMR_START, (caddr_t)&idat, p); 1085 goto out; 1086 case OSS_TMR_STOP: 1087 error = ioctlf(fp, SEQUENCER_TMR_STOP, (caddr_t)&idat, p); 1088 goto out; 1089 case OSS_TMR_CONTINUE: 1090 error = ioctlf(fp, SEQUENCER_TMR_CONTINUE, (caddr_t)&idat, p); 1091 goto out; 1092 case OSS_TMR_TEMPO: 1093 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1094 if (error) 1095 goto out; 1096 error = ioctlf(fp, SEQUENCER_TMR_TEMPO, (caddr_t)&idat, p); 1097 if (error) 1098 goto out; 1099 retval[0] = idat; 1100 break; 1101 case OSS_TMR_SOURCE: 1102 error = copyin(SCARG(uap, data), &idat1, sizeof idat); 1103 if (error) 1104 goto out; 1105 idat = 0; 1106 if (idat1 & OSS_TMR_INTERNAL) idat |= SEQUENCER_TMR_INTERNAL; 1107 error = ioctlf(fp, SEQUENCER_TMR_SOURCE, (caddr_t)&idat, p); 1108 if (error) 1109 goto out; 1110 idat1 = idat; 1111 if (idat1 & SEQUENCER_TMR_INTERNAL) idat |= OSS_TMR_INTERNAL; 1112 retval[0] = idat; 1113 break; 1114 case OSS_TMR_METRONOME: 1115 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1116 if (error) 1117 goto out; 1118 error = ioctlf(fp, SEQUENCER_TMR_METRONOME, (caddr_t)&idat, p); 1119 goto out; 1120 case OSS_TMR_SELECT: 1121 error = copyin(SCARG(uap, data), &idat, sizeof idat); 1122 if (error) 1123 goto out; 1124 retval[0] = idat; 1125 error = ioctlf(fp, SEQUENCER_TMR_SELECT, (caddr_t)&idat, p); 1126 goto out; 1127 default: 1128 error = EINVAL; 1129 goto out; 1130 } 1131 1132 error = copyout(&idat, SCARG(uap, data), sizeof idat); 1133 out: 1134 FILE_UNUSE(fp, p); 1135 return error; 1136 } 1137 1138 /* 1139 * Check that the blocksize is a power of 2 as OSS wants. 1140 * If not, set it to be. 1141 */ 1142 static void 1143 setblocksize(fp, info, p) 1144 struct file *fp; 1145 struct audio_info *info; 1146 struct proc *p; 1147 { 1148 struct audio_info set; 1149 int s; 1150 1151 if (info->blocksize & (info->blocksize-1)) { 1152 for(s = 32; s < info->blocksize; s <<= 1) 1153 ; 1154 AUDIO_INITINFO(&set); 1155 set.blocksize = s; 1156 fp->f_ops->fo_ioctl(fp, AUDIO_SETINFO, (caddr_t)&set, p); 1157 fp->f_ops->fo_ioctl(fp, AUDIO_GETINFO, (caddr_t)info, p); 1158 } 1159 } 1160
Indexes created Tue Sep 23 14:10:03 GMT 2025