1 /** $MirOS: src/sys/compat/ossaudio/ossaudio.c,v 1.2 2005/07/19 13:10:42 tg Exp $ */
2 /* $OpenBSD: ossaudio.c,v 1.8 2002/03/14 01:26:50 millert Exp $ */
3 /* $NetBSD: ossaudio.c,v 1.23 1997/10/19 07:41:52 augustss Exp $ */
4
5 /*
6 * Copyright (c) 1997 The NetBSD Foundation, Inc.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the NetBSD
20 * Foundation, Inc. and its contributors.
21 * 4. Neither the name of The NetBSD Foundation nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38 #include <sys/param.h>
39 #include <sys/proc.h>
40 #include <sys/systm.h>
41 #include <sys/file.h>
42 #include <sys/vnode.h>
43 #include <sys/filedesc.h>
44 #include <sys/ioctl.h>
45 #include <sys/mount.h>
46 #include <sys/audioio.h>
47
48 #include <sys/syscallargs.h>
49
50 #include <compat/ossaudio/ossaudio.h>
51 #include <compat/ossaudio/ossaudiovar.h>
52
53 #ifdef AUDIO_DEBUG
54 #define DPRINTF(x) if (ossdebug) printf x
55 int ossdebug = 0;
56 #else
57 #define DPRINTF(x)
58 #endif
59
60 #define TO_OSSVOL(x) ((x) * 100 / 255)
61 #define FROM_OSSVOL(x) ((x) * 255 / 100)
62
63 static struct audiodevinfo *getdevinfo(struct file *, struct proc *);
64
65 static void setblocksize(struct file *, struct audio_info *, struct proc *);
66
67
68 int
oss_ioctl_audio(p,uap,retval)69 oss_ioctl_audio(p, uap, retval)
70 struct proc *p;
71 struct oss_sys_ioctl_args /* {
72 syscallarg(int) fd;
73 syscallarg(u_long) com;
74 syscallarg(caddr_t) data;
75 } */ *uap;
76 register_t *retval;
77 {
78 struct file *fp;
79 struct filedesc *fdp;
80 u_long com;
81 struct audio_info tmpinfo;
82 struct audio_offset tmpoffs;
83 struct oss_audio_buf_info bufinfo;
84 struct oss_count_info cntinfo;
85 struct audio_encoding tmpenc;
86 u_int u;
87 int idat, idata;
88 int error;
89 int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *);
90
91 fdp = p->p_fd;
92 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
93 return (EBADF);
94 FREF(fp);
95
96 if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
97 error = EBADF;
98 goto out;
99 }
100
101 ioctlf = fp->f_ops->fo_ioctl;
102
103 com = SCARG(uap, com);
104 retval[0] = 0;
105
106 DPRINTF(("oss_sys_ioctl: com=%08lx\n", com));
107 switch (com) {
108 case OSS_SNDCTL_DSP_RESET:
109 error = ioctlf(fp, AUDIO_FLUSH, (caddr_t)0, p);
110 if (error)
111 goto out;
112 break;
113 case OSS_SNDCTL_DSP_SYNC:
114 case OSS_SNDCTL_DSP_POST:
115 error = ioctlf(fp, AUDIO_DRAIN, (caddr_t)0, p);
116 if (error)
117 goto out;
118 break;
119 case OSS_SNDCTL_DSP_SPEED:
120 AUDIO_INITINFO(&tmpinfo);
121 error = copyin(SCARG(uap, data), &idat, sizeof idat);
122 if (error)
123 goto out;
124 tmpinfo.play.sample_rate =
125 tmpinfo.record.sample_rate = idat;
126 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
127 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_SPEED %d = %d\n",
128 idat, error));
129 if (error)
130 goto out;
131 /* fall into ... */
132 case OSS_SOUND_PCM_READ_RATE:
133 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
134 if (error)
135 goto out;
136 idat = tmpinfo.play.sample_rate;
137 error = copyout(&idat, SCARG(uap, data), sizeof idat);
138 if (error)
139 goto out;
140 break;
141 case OSS_SNDCTL_DSP_STEREO:
142 AUDIO_INITINFO(&tmpinfo);
143 error = copyin(SCARG(uap, data), &idat, sizeof idat);
144 if (error)
145 goto out;
146 tmpinfo.play.channels =
147 tmpinfo.record.channels = idat ? 2 : 1;
148 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
149 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
150 if (error)
151 goto out;
152 idat = tmpinfo.play.channels - 1;
153 error = copyout(&idat, SCARG(uap, data), sizeof idat);
154 if (error)
155 goto out;
156 break;
157 case OSS_SNDCTL_DSP_GETBLKSIZE:
158 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
159 if (error)
160 goto out;
161 setblocksize(fp, &tmpinfo, p);
162 idat = tmpinfo.blocksize;
163 error = copyout(&idat, SCARG(uap, data), sizeof idat);
164 if (error)
165 goto out;
166 break;
167 case OSS_SNDCTL_DSP_SETFMT:
168 AUDIO_INITINFO(&tmpinfo);
169 error = copyin(SCARG(uap, data), &idat, sizeof idat);
170 if (error)
171 goto out;
172 switch (idat) {
173 case OSS_AFMT_MU_LAW:
174 tmpinfo.play.precision =
175 tmpinfo.record.precision = 8;
176 tmpinfo.play.encoding =
177 tmpinfo.record.encoding = AUDIO_ENCODING_ULAW;
178 break;
179 case OSS_AFMT_A_LAW:
180 tmpinfo.play.precision =
181 tmpinfo.record.precision = 8;
182 tmpinfo.play.encoding =
183 tmpinfo.record.encoding = AUDIO_ENCODING_ALAW;
184 break;
185 case OSS_AFMT_U8:
186 tmpinfo.play.precision =
187 tmpinfo.record.precision = 8;
188 tmpinfo.play.encoding =
189 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR;
190 break;
191 case OSS_AFMT_S8:
192 tmpinfo.play.precision =
193 tmpinfo.record.precision = 8;
194 tmpinfo.play.encoding =
195 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR;
196 break;
197 case OSS_AFMT_S16_LE:
198 tmpinfo.play.precision =
199 tmpinfo.record.precision = 16;
200 tmpinfo.play.encoding =
201 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_LE;
202 break;
203 case OSS_AFMT_S16_BE:
204 tmpinfo.play.precision =
205 tmpinfo.record.precision = 16;
206 tmpinfo.play.encoding =
207 tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_BE;
208 break;
209 case OSS_AFMT_U16_LE:
210 tmpinfo.play.precision =
211 tmpinfo.record.precision = 16;
212 tmpinfo.play.encoding =
213 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_LE;
214 break;
215 case OSS_AFMT_U16_BE:
216 tmpinfo.play.precision =
217 tmpinfo.record.precision = 16;
218 tmpinfo.play.encoding =
219 tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_BE;
220 break;
221 default:
222 error = EINVAL;
223 goto out;
224 }
225 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
226 /* fall into ... */
227 case OSS_SOUND_PCM_READ_BITS:
228 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
229 if (error)
230 goto out;
231 switch (tmpinfo.play.encoding) {
232 case AUDIO_ENCODING_ULAW:
233 idat = OSS_AFMT_MU_LAW;
234 break;
235 case AUDIO_ENCODING_ALAW:
236 idat = OSS_AFMT_A_LAW;
237 break;
238 case AUDIO_ENCODING_SLINEAR_LE:
239 if (tmpinfo.play.precision == 16)
240 idat = OSS_AFMT_S16_LE;
241 else
242 idat = OSS_AFMT_S8;
243 break;
244 case AUDIO_ENCODING_SLINEAR_BE:
245 if (tmpinfo.play.precision == 16)
246 idat = OSS_AFMT_S16_BE;
247 else
248 idat = OSS_AFMT_S8;
249 break;
250 case AUDIO_ENCODING_ULINEAR_LE:
251 if (tmpinfo.play.precision == 16)
252 idat = OSS_AFMT_U16_LE;
253 else
254 idat = OSS_AFMT_U8;
255 break;
256 case AUDIO_ENCODING_ULINEAR_BE:
257 if (tmpinfo.play.precision == 16)
258 idat = OSS_AFMT_U16_BE;
259 else
260 idat = OSS_AFMT_U8;
261 break;
262 case AUDIO_ENCODING_ADPCM:
263 idat = OSS_AFMT_IMA_ADPCM;
264 break;
265 }
266 error = copyout(&idat, SCARG(uap, data), sizeof idat);
267 if (error)
268 goto out;
269 break;
270 case OSS_SNDCTL_DSP_CHANNELS:
271 AUDIO_INITINFO(&tmpinfo);
272 error = copyin(SCARG(uap, data), &idat, sizeof idat);
273 if (error)
274 goto out;
275 tmpinfo.play.channels =
276 tmpinfo.record.channels = idat;
277 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
278 /* fall into ... */
279 case OSS_SOUND_PCM_READ_CHANNELS:
280 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
281 if (error)
282 goto out;
283 idat = tmpinfo.play.channels;
284 error = copyout(&idat, SCARG(uap, data), sizeof idat);
285 if (error)
286 goto out;
287 break;
288 case OSS_SOUND_PCM_WRITE_FILTER:
289 case OSS_SOUND_PCM_READ_FILTER:
290 error = EINVAL; /* XXX unimplemented */
291 goto out;
292 case OSS_SNDCTL_DSP_SUBDIVIDE:
293 error = copyin(SCARG(uap, data), &idat, sizeof idat);
294 if (error)
295 goto out;
296 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
297 setblocksize(fp, &tmpinfo, p);
298 if (error)
299 goto out;
300 if (idat == 0)
301 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize;
302 idat = (tmpinfo.play.buffer_size / idat) & -4;
303 AUDIO_INITINFO(&tmpinfo);
304 tmpinfo.blocksize = idat;
305 error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
306 if (error)
307 goto out;
308 idat = tmpinfo.play.buffer_size / tmpinfo.blocksize;
309 error = copyout(&idat, SCARG(uap, data), sizeof idat);
310 if (error)
311 goto out;
312 break;
313 case OSS_SNDCTL_DSP_SETFRAGMENT:
314 AUDIO_INITINFO(&tmpinfo);
315 error = copyin(SCARG(uap, data), &idat, sizeof idat);
316 if (error)
317 goto out;
318 if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17) {
319 error = EINVAL;
320 goto out;
321 }
322 tmpinfo.blocksize = 1 << (idat & 0xffff);
323 tmpinfo.hiwat = (idat >> 16) & 0x7fff;
324 DPRINTF(("oss_audio: SETFRAGMENT blksize=%d, hiwat=%d\n",
325 tmpinfo.blocksize, tmpinfo.hiwat));
326 if (tmpinfo.hiwat == 0) /* 0 means set to max */
327 tmpinfo.hiwat = 65536;
328 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
329 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
330 if (error)
331 goto out;
332 u = tmpinfo.blocksize;
333 for(idat = 0; u > 1; idat++, u >>= 1)
334 ;
335 idat |= (tmpinfo.hiwat & 0x7fff) << 16;
336 error = copyout(&idat, SCARG(uap, data), sizeof idat);
337 if (error)
338 goto out;
339 break;
340 case OSS_SNDCTL_DSP_GETFMTS:
341 for(idat = 0, tmpenc.index = 0;
342 ioctlf(fp, AUDIO_GETENC, (caddr_t)&tmpenc, p) == 0;
343 tmpenc.index++) {
344 if (tmpenc.flags & AUDIO_ENCODINGFLAG_EMULATED)
345 continue; /* Don't report emulated modes */
346 switch(tmpenc.encoding) {
347 case AUDIO_ENCODING_ULAW:
348 idat |= OSS_AFMT_MU_LAW;
349 break;
350 case AUDIO_ENCODING_ALAW:
351 idat |= OSS_AFMT_A_LAW;
352 break;
353 case AUDIO_ENCODING_SLINEAR:
354 idat |= OSS_AFMT_S8;
355 break;
356 case AUDIO_ENCODING_SLINEAR_LE:
357 if (tmpenc.precision == 16)
358 idat |= OSS_AFMT_S16_LE;
359 else
360 idat |= OSS_AFMT_S8;
361 break;
362 case AUDIO_ENCODING_SLINEAR_BE:
363 if (tmpenc.precision == 16)
364 idat |= OSS_AFMT_S16_BE;
365 else
366 idat |= OSS_AFMT_S8;
367 break;
368 case AUDIO_ENCODING_ULINEAR:
369 idat |= OSS_AFMT_U8;
370 break;
371 case AUDIO_ENCODING_ULINEAR_LE:
372 if (tmpenc.precision == 16)
373 idat |= OSS_AFMT_U16_LE;
374 else
375 idat |= OSS_AFMT_U8;
376 break;
377 case AUDIO_ENCODING_ULINEAR_BE:
378 if (tmpenc.precision == 16)
379 idat |= OSS_AFMT_U16_BE;
380 else
381 idat |= OSS_AFMT_U8;
382 break;
383 case AUDIO_ENCODING_ADPCM:
384 idat |= OSS_AFMT_IMA_ADPCM;
385 break;
386 default:
387 break;
388 }
389 }
390 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETFMTS = %x\n", idat));
391 error = copyout(&idat, SCARG(uap, data), sizeof idat);
392 if (error)
393 goto out;
394 break;
395 case OSS_SNDCTL_DSP_GETOSPACE:
396 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
397 if (error)
398 goto out;
399 setblocksize(fp, &tmpinfo, p);
400 bufinfo.fragsize = tmpinfo.blocksize;
401 bufinfo.fragments = tmpinfo.hiwat -
402 (tmpinfo.play.seek + tmpinfo.blocksize - 1) /
403 tmpinfo.blocksize;
404 bufinfo.fragstotal = tmpinfo.hiwat;
405 bufinfo.bytes =
406 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.play.seek;
407 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo);
408 if (error)
409 goto out;
410 break;
411 case OSS_SNDCTL_DSP_GETISPACE:
412 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
413 if (error)
414 goto out;
415 setblocksize(fp, &tmpinfo, p);
416 bufinfo.fragsize = tmpinfo.blocksize;
417 bufinfo.fragments = tmpinfo.hiwat -
418 (tmpinfo.record.seek + tmpinfo.blocksize - 1) /
419 tmpinfo.blocksize;
420 bufinfo.fragstotal = tmpinfo.hiwat;
421 bufinfo.bytes =
422 tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.record.seek;
423 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETxSPACE = %d %d %d %d\n",
424 bufinfo.fragsize, bufinfo.fragments,
425 bufinfo.fragstotal, bufinfo.bytes));
426 error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo);
427 if (error)
428 goto out;
429 break;
430 case OSS_SNDCTL_DSP_NONBLOCK:
431 idat = 1;
432 error = ioctlf(fp, FIONBIO, (caddr_t)&idat, p);
433 if (error)
434 goto out;
435 break;
436 case OSS_SNDCTL_DSP_GETCAPS:
437 error = ioctlf(fp, AUDIO_GETPROPS, (caddr_t)&idata, p);
438 if (error)
439 goto out;
440 idat = OSS_DSP_CAP_TRIGGER; /* pretend we have trigger */
441 if (idata & AUDIO_PROP_FULLDUPLEX)
442 idat |= OSS_DSP_CAP_DUPLEX;
443 if (idata & AUDIO_PROP_MMAP)
444 idat |= OSS_DSP_CAP_MMAP;
445 DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETCAPS = %x\n", idat));
446 error = copyout(&idat, SCARG(uap, data), sizeof idat);
447 if (error)
448 goto out;
449 break;
450 #if 0
451 case OSS_SNDCTL_DSP_GETTRIGGER:
452 error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
453 if (error)
454 goto out;
455 idat = (tmpinfo.play.pause ? 0 : OSS_PCM_ENABLE_OUTPUT) |
456 (tmpinfo.record.pause ? 0 : OSS_PCM_ENABLE_INPUT);
457 error = copyout(&idat, SCARG(uap, data), sizeof idat);
458 if (error)
459 goto out;
460 break;
461 case OSS_SNDCTL_DSP_SETTRIGGER:
462 AUDIO_INITINFO(&tmpinfo);
463 error = copyin(SCARG(uap, data), &idat, sizeof idat);
464 if (error)
465 goto out;
466 tmpinfo.play.pause = (idat & OSS_PCM_ENABLE_OUTPUT) == 0;
467 tmpinfo.record.pause = (idat & OSS_PCM_ENABLE_INPUT) == 0;
468 (void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
469 error = copyout(&idat, SCARG(uap, data), sizeof idat);
470 if (error)
471 goto out;
472 break;
473 #else
474 case OSS_SNDCTL_DSP_GETTRIGGER:
475 case OSS_SNDCTL_DSP_SETTRIGGER:
476 /* XXX Do nothing for now. */
477 idat = OSS_PCM_ENABLE_OUTPUT;
478 error = copyout(&idat, SCARG(uap, data), sizeof idat);
479 goto out;
480 #endif
481 case OSS_SNDCTL_DSP_GETIPTR:
482 error = ioctlf(fp, AUDIO_GETIOFFS, (caddr_t)&tmpoffs, p);
483 if (error)
484 goto out;
485 cntinfo.bytes = tmpoffs.samples;
486 cntinfo.blocks = tmpoffs.deltablks;
487 cntinfo.ptr = tmpoffs.offset;
488 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo);
489 if (error)
490 goto out;
491 break;
492 case OSS_SNDCTL_DSP_GETOPTR:
493 error = ioctlf(fp, AUDIO_GETOOFFS, (caddr_t)&tmpoffs, p);
494 if (error)
495 goto out;
496 cntinfo.bytes = tmpoffs.samples;
497 cntinfo.blocks = tmpoffs.deltablks;
498 cntinfo.ptr = tmpoffs.offset;
499 error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo);
500 if (error)
501 goto out;
502 break;
503 case OSS_SNDCTL_DSP_SETDUPLEX:
504 idat = 1;
505 error = ioctlf(fp, AUDIO_SETFD, (caddr_t)&idat, p);
506 if (error)
507 goto out;
508 break;
509 case OSS_SNDCTL_DSP_MAPINBUF:
510 case OSS_SNDCTL_DSP_MAPOUTBUF:
511 case OSS_SNDCTL_DSP_SETSYNCRO:
512 case OSS_SNDCTL_DSP_PROFILE:
513 error = EINVAL; /* XXX unimplemented */
514 goto out;
515 default:
516 error = EINVAL;
517 goto out;
518 }
519
520 error = 0;
521
522 out:
523 FRELE(fp);
524 return (error);
525 }
526
527 /* If the NetBSD mixer device should have more than 32 devices
528 * some will not be available to Linux */
529 #define NETBSD_MAXDEVS 64
530 struct audiodevinfo {
531 int done;
532 dev_t dev;
533 int16_t devmap[OSS_SOUND_MIXER_NRDEVICES],
534 rdevmap[NETBSD_MAXDEVS];
535 u_long devmask, recmask, stereomask;
536 u_long caps, source;
537 };
538
539 /*
540 * Collect the audio device information to allow faster
541 * emulation of the Linux mixer ioctls. Cache the information
542 * to eliminate the overhead of repeating all the ioctls needed
543 * to collect the information.
544 */
545 static struct audiodevinfo *
getdevinfo(fp,p)546 getdevinfo(fp, p)
547 struct file *fp;
548 struct proc *p;
549 {
550 mixer_devinfo_t mi;
551 int i;
552 static const struct oss_devs {
553 const char *name;
554 int code;
555 } devs[] = {
556 { AudioNmicrophone, OSS_SOUND_MIXER_MIC },
557 { AudioNline, OSS_SOUND_MIXER_LINE },
558 { AudioNcd, OSS_SOUND_MIXER_CD },
559 { AudioNdac, OSS_SOUND_MIXER_PCM },
560 { AudioNrecord, OSS_SOUND_MIXER_IMIX },
561 { AudioNmaster, OSS_SOUND_MIXER_VOLUME },
562 { AudioNtreble, OSS_SOUND_MIXER_TREBLE },
563 { AudioNbass, OSS_SOUND_MIXER_BASS },
564 { AudioNspeaker, OSS_SOUND_MIXER_SPEAKER },
565 /* { AudioNheadphone, ?? },*/
566 { AudioNoutput, OSS_SOUND_MIXER_OGAIN },
567 { AudioNinput, OSS_SOUND_MIXER_IGAIN },
568 /* { AudioNmaster, OSS_SOUND_MIXER_SPEAKER },*/
569 /* { AudioNstereo, ?? },*/
570 /* { AudioNmono, ?? },*/
571 { AudioNfmsynth, OSS_SOUND_MIXER_SYNTH },
572 /* { AudioNwave, OSS_SOUND_MIXER_PCM },*/
573 { AudioNmidi, OSS_SOUND_MIXER_SYNTH },
574 /* { AudioNmixerout, ?? },*/
575 { 0, -1 }
576 };
577 register const struct oss_devs *dp;
578 int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *) =
579 fp->f_ops->fo_ioctl;
580 struct vnode *vp;
581 struct vattr va;
582 static struct audiodevinfo devcache = { 0 };
583 register struct audiodevinfo *di = &devcache;
584
585 /* Figure out what device it is so we can check if the
586 * cached data is valid.
587 */
588 vp = (struct vnode *)fp->f_data;
589 if (vp->v_type != VCHR)
590 return 0;
591 if (VOP_GETATTR(vp, &va, p->p_ucred, p))
592 return 0;
593 if (di->done && di->dev == va.va_rdev)
594 return di;
595
596 di->done = 1;
597 di->dev = va.va_rdev;
598 di->devmask = 0;
599 di->recmask = 0;
600 di->stereomask = 0;
601 di->source = -1;
602 di->caps = 0;
603 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++)
604 di->devmap[i] = -1;
605 for(i = 0; i < NETBSD_MAXDEVS; i++)
606 di->rdevmap[i] = -1;
607 for(i = 0; i < NETBSD_MAXDEVS; i++) {
608 mi.index = i;
609 if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0)
610 break;
611 switch(mi.type) {
612 case AUDIO_MIXER_VALUE:
613 for(dp = devs; dp->name; dp++)
614 if (strcmp(dp->name, mi.label.name) == 0)
615 break;
616 if (dp->code >= 0) {
617 di->devmap[dp->code] = i;
618 di->rdevmap[i] = dp->code;
619 di->devmask |= 1 << dp->code;
620 if (mi.un.v.num_channels == 2)
621 di->stereomask |= 1 << dp->code;
622 }
623 break;
624 case AUDIO_MIXER_ENUM:
625 if (strcmp(mi.label.name, AudioNsource) == 0) {
626 int j;
627 di->source = i;
628 for(j = 0; j < mi.un.e.num_mem; j++)
629 di->recmask |= 1 << di->rdevmap[mi.un.e.member[j].ord];
630 di->caps = OSS_SOUND_CAP_EXCL_INPUT;
631 }
632 break;
633 case AUDIO_MIXER_SET:
634 if (strcmp(mi.label.name, AudioNsource) == 0) {
635 int j;
636 di->source = i;
637 for(j = 0; j < mi.un.s.num_mem; j++) {
638 int k, mask = mi.un.s.member[j].mask;
639 if (mask) {
640 for(k = 0; !(mask & 1); mask >>= 1, k++)
641 ;
642 di->recmask |= 1 << di->rdevmap[k];
643 }
644 }
645 }
646 break;
647 }
648 }
649 return di;
650 }
651
652 int
oss_ioctl_mixer(p,uap,retval)653 oss_ioctl_mixer(p, uap, retval)
654 struct proc *p;
655 struct oss_sys_ioctl_args /* {
656 syscallarg(int) fd;
657 syscallarg(u_long) com;
658 syscallarg(caddr_t) data;
659 } */ *uap;
660 register_t *retval;
661 {
662 struct file *fp;
663 struct filedesc *fdp;
664 u_long com;
665 struct audiodevinfo *di;
666 mixer_ctrl_t mc;
667 int idat;
668 int i;
669 int error;
670 int l, r, n;
671 int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *);
672
673 fdp = p->p_fd;
674 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
675 return (EBADF);
676 FREF(fp);
677
678 if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
679 error = EBADF;
680 goto out;
681 }
682
683 com = SCARG(uap, com);
684 retval[0] = 0;
685
686 di = getdevinfo(fp, p);
687 if (di == 0) {
688 error = EINVAL;
689 goto out;
690 }
691
692 ioctlf = fp->f_ops->fo_ioctl;
693 switch (com) {
694 case OSS_SOUND_MIXER_READ_RECSRC:
695 if (di->source == -1) {
696 error = EINVAL;
697 goto out;
698 }
699 mc.dev = di->source;
700 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) {
701 mc.type = AUDIO_MIXER_ENUM;
702 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
703 if (error)
704 goto out;
705 idat = 1 << di->rdevmap[mc.un.ord];
706 } else {
707 int k;
708 unsigned int mask;
709 mc.type = AUDIO_MIXER_SET;
710 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
711 if (error)
712 goto out;
713 idat = 0;
714 for(mask = mc.un.mask, k = 0; mask; mask >>= 1, k++)
715 if (mask & 1)
716 idat |= 1 << di->rdevmap[k];
717 }
718 break;
719 case OSS_SOUND_MIXER_READ_DEVMASK:
720 idat = di->devmask;
721 break;
722 case OSS_SOUND_MIXER_READ_RECMASK:
723 idat = di->recmask;
724 break;
725 case OSS_SOUND_MIXER_READ_STEREODEVS:
726 idat = di->stereomask;
727 break;
728 case OSS_SOUND_MIXER_READ_CAPS:
729 idat = di->caps;
730 break;
731 case OSS_SOUND_MIXER_WRITE_RECSRC:
732 case OSS_SOUND_MIXER_WRITE_R_RECSRC:
733 if (di->source == -1) {
734 error = EINVAL;
735 goto out;
736 }
737 mc.dev = di->source;
738 error = copyin(SCARG(uap, data), &idat, sizeof idat);
739 if (error)
740 goto out;
741 if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) {
742 mc.type = AUDIO_MIXER_ENUM;
743 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++)
744 if (idat & (1 << i))
745 break;
746 if (i >= OSS_SOUND_MIXER_NRDEVICES ||
747 di->devmap[i] == -1) {
748 error = EINVAL;
749 goto out;
750 }
751 mc.un.ord = di->devmap[i];
752 } else {
753 mc.type = AUDIO_MIXER_SET;
754 mc.un.mask = 0;
755 for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) {
756 if (idat & (1 << i)) {
757 if (di->devmap[i] == -1) {
758 error = EINVAL;
759 goto out;
760 }
761 mc.un.mask |= 1 << di->devmap[i];
762 }
763 }
764 }
765 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p);
766 goto out;
767 default:
768 if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com &&
769 com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) {
770 n = OSS_GET_DEV(com);
771 if (di->devmap[n] == -1) {
772 error = EINVAL;
773 goto out;
774 }
775 doread:
776 mc.dev = di->devmap[n];
777 mc.type = AUDIO_MIXER_VALUE;
778 mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1;
779 error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
780 if (error)
781 goto out;
782 if (mc.un.value.num_channels != 2) {
783 l = r = mc.un.value.level[AUDIO_MIXER_LEVEL_MONO];
784 } else {
785 l = mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT];
786 r = mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
787 }
788 idat = TO_OSSVOL(l) | (TO_OSSVOL(r) << 8);
789 DPRINTF(("OSS_MIXER_READ n=%d (dev=%d) l=%d, r=%d, idat=%04x\n",
790 n, di->devmap[n], l, r, idat));
791 break;
792 } else if ((OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_FIRST) <= com &&
793 com < OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_NRDEVICES)) ||
794 (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com &&
795 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES))) {
796 n = OSS_GET_DEV(com);
797 if (di->devmap[n] == -1) {
798 error = EINVAL;
799 goto out;
800 }
801 error = copyin(SCARG(uap, data), &idat, sizeof idat);
802 if (error)
803 goto out;
804 l = FROM_OSSVOL( idat & 0xff);
805 r = FROM_OSSVOL((idat >> 8) & 0xff);
806 mc.dev = di->devmap[n];
807 mc.type = AUDIO_MIXER_VALUE;
808 if (di->stereomask & (1<<n)) {
809 mc.un.value.num_channels = 2;
810 mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
811 mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
812 } else {
813 mc.un.value.num_channels = 1;
814 mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r)/2;
815 }
816 DPRINTF(("OSS_MIXER_WRITE n=%d (dev=%d) l=%d, r=%d, idat=%04x\n",
817 n, di->devmap[n], l, r, idat));
818 error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p);
819 if (error)
820 goto out;
821 if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com &&
822 com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) {
823 error = 0;
824 goto out;
825 }
826 goto doread;
827 } else {
828 #ifdef AUDIO_DEBUG
829 printf("oss_audio: unknown mixer ioctl %04lx\n", com);
830 #endif
831 error = EINVAL;
832 goto out;
833 }
834 }
835 error = copyout(&idat, SCARG(uap, data), sizeof idat);
836
837 out:
838 FRELE(fp);
839 return (error);
840 }
841
842 /* XXX hook for sequencer emulation */
843 int
oss_ioctl_sequencer(p,uap,retval)844 oss_ioctl_sequencer(p, uap, retval)
845 struct proc *p;
846 struct oss_sys_ioctl_args /* {
847 syscallarg(int) fd;
848 syscallarg(u_long) com;
849 syscallarg(caddr_t) data;
850 } */ *uap;
851 register_t *retval;
852 {
853 struct file *fp;
854 struct filedesc *fdp;
855 #if 0
856 u_long com;
857 int idat;
858 int error;
859 #endif
860
861 fdp = p->p_fd;
862 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
863 return (EBADF);
864
865 if ((fp->f_flag & (FREAD | FWRITE)) == 0)
866 return (EBADF);
867
868 #if 0
869 com = SCARG(uap, com);
870 #endif
871 retval[0] = 0;
872
873 return EINVAL;
874 }
875
876 /*
877 * Check that the blocksize is a power of 2 as OSS wants.
878 * If not, set it to be.
879 */
setblocksize(fp,info,p)880 static void setblocksize(fp, info, p)
881 struct file *fp;
882 struct audio_info *info;
883 struct proc *p;
884 {
885 struct audio_info set;
886 int s;
887
888 if (info->blocksize & (info->blocksize-1)) {
889 for(s = 32; s < info->blocksize; s <<= 1)
890 ;
891 AUDIO_INITINFO(&set);
892 set.blocksize = s;
893 fp->f_ops->fo_ioctl(fp, AUDIO_SETINFO, (caddr_t)&set, p);
894 fp->f_ops->fo_ioctl(fp, AUDIO_GETINFO, (caddr_t)info, p);
895 }
896 }
897