1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org> 5 * Copyright (c) 2001 Cameron Grant <cg@FreeBSD.org> 6 * Copyright (c) 2020 The FreeBSD Foundation 7 * All rights reserved. 8 * Copyright (c) 2024 The FreeBSD Foundation 9 * 10 * Portions of this software were developed by Christos Margiolis 11 * <christos@FreeBSD.org> under sponsorship from the FreeBSD Foundation. 12 * 13 * Portions of this software were developed by Ka Ho Ng 14 * under sponsorship from the FreeBSD Foundation. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 38 #ifdef HAVE_KERNEL_OPTION_HEADERS 39 #include "opt_snd.h" 40 #endif 41 42 #include <sys/param.h> 43 #include <sys/lock.h> 44 #include <sys/malloc.h> 45 #include <sys/nv.h> 46 #include <sys/dnv.h> 47 #include <sys/sx.h> 48 49 #include <dev/sound/pcm/sound.h> 50 #include <dev/sound/pcm/pcm.h> 51 52 #include "feeder_if.h" 53 54 #define SS_TYPE_PCM 1 55 #define SS_TYPE_MIDI 2 56 #define SS_TYPE_SEQUENCER 3 57 58 static d_open_t sndstat_open; 59 static void sndstat_close(void *); 60 static d_read_t sndstat_read; 61 static d_write_t sndstat_write; 62 static d_ioctl_t sndstat_ioctl; 63 64 static struct cdevsw sndstat_cdevsw = { 65 .d_version = D_VERSION, 66 .d_open = sndstat_open, 67 .d_read = sndstat_read, 68 .d_write = sndstat_write, 69 .d_ioctl = sndstat_ioctl, 70 .d_name = "sndstat", 71 .d_flags = D_TRACKCLOSE, 72 }; 73 74 struct sndstat_entry { 75 TAILQ_ENTRY(sndstat_entry) link; 76 device_t dev; 77 char *str; 78 int type, unit; 79 }; 80 81 struct sndstat_userdev { 82 TAILQ_ENTRY(sndstat_userdev) link; 83 char *provider; 84 char *nameunit; 85 char *devnode; 86 char *desc; 87 unsigned int pchan; 88 unsigned int rchan; 89 struct { 90 uint32_t min_rate; 91 uint32_t max_rate; 92 uint32_t formats; 93 uint32_t min_chn; 94 uint32_t max_chn; 95 } info_play, info_rec; 96 nvlist_t *provider_nvl; 97 }; 98 99 struct sndstat_file { 100 TAILQ_ENTRY(sndstat_file) entry; 101 struct sbuf sbuf; 102 struct sx lock; 103 void *devs_nvlbuf; /* (l) */ 104 size_t devs_nbytes; /* (l) */ 105 TAILQ_HEAD(, sndstat_userdev) userdev_list; /* (l) */ 106 int out_offset; 107 int in_offset; 108 int fflags; 109 }; 110 111 static struct sx sndstat_lock; 112 static struct cdev *sndstat_dev; 113 114 #define SNDSTAT_LOCK() sx_xlock(&sndstat_lock) 115 #define SNDSTAT_UNLOCK() sx_xunlock(&sndstat_lock) 116 117 static TAILQ_HEAD(, sndstat_entry) sndstat_devlist = TAILQ_HEAD_INITIALIZER(sndstat_devlist); 118 static TAILQ_HEAD(, sndstat_file) sndstat_filelist = TAILQ_HEAD_INITIALIZER(sndstat_filelist); 119 120 int snd_verbose = 0; 121 122 static int sndstat_prepare(struct sndstat_file *); 123 static struct sndstat_userdev * 124 sndstat_line2userdev(struct sndstat_file *, const char *, int); 125 126 static int 127 sysctl_hw_sndverbose(SYSCTL_HANDLER_ARGS) 128 { 129 int error, verbose; 130 131 verbose = snd_verbose; 132 error = sysctl_handle_int(oidp, &verbose, 0, req); 133 if (error == 0 && req->newptr != NULL) { 134 if (verbose < 0 || verbose > 4) 135 error = EINVAL; 136 else 137 snd_verbose = verbose; 138 } 139 return (error); 140 } 141 SYSCTL_PROC(_hw_snd, OID_AUTO, verbose, 142 CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 0, sizeof(int), 143 sysctl_hw_sndverbose, "I", 144 "verbosity level"); 145 146 static int 147 sndstat_open(struct cdev *i_dev, int flags, int mode, struct thread *td) 148 { 149 struct sndstat_file *pf; 150 151 pf = malloc(sizeof(*pf), M_DEVBUF, M_WAITOK | M_ZERO); 152 153 if (sbuf_new(&pf->sbuf, NULL, 4096, SBUF_AUTOEXTEND) == NULL) { 154 free(pf, M_DEVBUF); 155 return (ENOMEM); 156 } 157 158 pf->fflags = flags; 159 TAILQ_INIT(&pf->userdev_list); 160 sx_init(&pf->lock, "sndstat_file"); 161 162 SNDSTAT_LOCK(); 163 TAILQ_INSERT_TAIL(&sndstat_filelist, pf, entry); 164 SNDSTAT_UNLOCK(); 165 166 devfs_set_cdevpriv(pf, &sndstat_close); 167 168 return (0); 169 } 170 171 /* 172 * Should only be called either when: 173 * * Closing 174 * * pf->lock held 175 */ 176 static void 177 sndstat_remove_all_userdevs(struct sndstat_file *pf) 178 { 179 struct sndstat_userdev *ud; 180 181 KASSERT( 182 sx_xlocked(&pf->lock), ("%s: Called without pf->lock", __func__)); 183 while ((ud = TAILQ_FIRST(&pf->userdev_list)) != NULL) { 184 TAILQ_REMOVE(&pf->userdev_list, ud, link); 185 free(ud->provider, M_DEVBUF); 186 free(ud->desc, M_DEVBUF); 187 free(ud->devnode, M_DEVBUF); 188 free(ud->nameunit, M_DEVBUF); 189 nvlist_destroy(ud->provider_nvl); 190 free(ud, M_DEVBUF); 191 } 192 } 193 194 static void 195 sndstat_close(void *sndstat_file) 196 { 197 struct sndstat_file *pf = (struct sndstat_file *)sndstat_file; 198 199 SNDSTAT_LOCK(); 200 sbuf_delete(&pf->sbuf); 201 TAILQ_REMOVE(&sndstat_filelist, pf, entry); 202 SNDSTAT_UNLOCK(); 203 204 free(pf->devs_nvlbuf, M_NVLIST); 205 sx_xlock(&pf->lock); 206 sndstat_remove_all_userdevs(pf); 207 sx_xunlock(&pf->lock); 208 sx_destroy(&pf->lock); 209 210 free(pf, M_DEVBUF); 211 } 212 213 static int 214 sndstat_read(struct cdev *i_dev, struct uio *buf, int flag) 215 { 216 struct sndstat_file *pf; 217 int err; 218 int len; 219 220 err = devfs_get_cdevpriv((void **)&pf); 221 if (err != 0) 222 return (err); 223 224 /* skip zero-length reads */ 225 if (buf->uio_resid == 0) 226 return (0); 227 228 SNDSTAT_LOCK(); 229 if (pf->out_offset != 0) { 230 /* don't allow both reading and writing */ 231 err = EINVAL; 232 goto done; 233 } else if (pf->in_offset == 0) { 234 err = sndstat_prepare(pf); 235 if (err <= 0) { 236 err = ENOMEM; 237 goto done; 238 } 239 } 240 len = sbuf_len(&pf->sbuf) - pf->in_offset; 241 if (len > buf->uio_resid) 242 len = buf->uio_resid; 243 if (len > 0) 244 err = uiomove(sbuf_data(&pf->sbuf) + pf->in_offset, len, buf); 245 pf->in_offset += len; 246 done: 247 SNDSTAT_UNLOCK(); 248 return (err); 249 } 250 251 static int 252 sndstat_write(struct cdev *i_dev, struct uio *buf, int flag) 253 { 254 struct sndstat_file *pf; 255 uint8_t temp[64]; 256 int err; 257 int len; 258 259 err = devfs_get_cdevpriv((void **)&pf); 260 if (err != 0) 261 return (err); 262 263 /* skip zero-length writes */ 264 if (buf->uio_resid == 0) 265 return (0); 266 267 /* don't allow writing more than 64Kbytes */ 268 if (buf->uio_resid > 65536) 269 return (ENOMEM); 270 271 SNDSTAT_LOCK(); 272 if (pf->in_offset != 0) { 273 /* don't allow both reading and writing */ 274 err = EINVAL; 275 } else { 276 /* only remember the last write - allows for updates */ 277 sx_xlock(&pf->lock); 278 sndstat_remove_all_userdevs(pf); 279 sx_xunlock(&pf->lock); 280 281 while (1) { 282 len = sizeof(temp); 283 if (len > buf->uio_resid) 284 len = buf->uio_resid; 285 if (len > 0) { 286 err = uiomove(temp, len, buf); 287 if (err) 288 break; 289 } else { 290 break; 291 } 292 if (sbuf_bcat(&pf->sbuf, temp, len) < 0) { 293 err = ENOMEM; 294 break; 295 } 296 } 297 sbuf_finish(&pf->sbuf); 298 299 if (err == 0) { 300 char *line, *str; 301 302 str = sbuf_data(&pf->sbuf); 303 while ((line = strsep(&str, "\n")) != NULL) { 304 struct sndstat_userdev *ud; 305 306 ud = sndstat_line2userdev(pf, line, strlen(line)); 307 if (ud == NULL) 308 continue; 309 310 sx_xlock(&pf->lock); 311 TAILQ_INSERT_TAIL(&pf->userdev_list, ud, link); 312 sx_xunlock(&pf->lock); 313 } 314 315 pf->out_offset = sbuf_len(&pf->sbuf); 316 } else 317 pf->out_offset = 0; 318 319 sbuf_clear(&pf->sbuf); 320 } 321 SNDSTAT_UNLOCK(); 322 return (err); 323 } 324 325 static void 326 sndstat_get_caps(struct snddev_info *d, int dir, uint32_t *min_rate, 327 uint32_t *max_rate, uint32_t *fmts, uint32_t *minchn, uint32_t *maxchn) 328 { 329 struct pcm_channel *c; 330 struct pcmchan_caps *caps; 331 int i; 332 333 *fmts = 0; 334 *min_rate = UINT32_MAX; 335 *max_rate = 0; 336 *minchn = UINT32_MAX; 337 *maxchn = 0; 338 339 CHN_FOREACH(c, d, channels.pcm) { 340 if (c->direction != dir) 341 continue; 342 CHN_LOCK(c); 343 caps = chn_getcaps(c); 344 for (i = 0; caps->fmtlist[i]; i++) { 345 *fmts |= AFMT_ENCODING(caps->fmtlist[i]); 346 *minchn = min(AFMT_CHANNEL(caps->fmtlist[i]), *minchn); 347 *maxchn = max(AFMT_CHANNEL(caps->fmtlist[i]), *maxchn); 348 } 349 if ((c->flags & CHN_F_EXCLUSIVE) || 350 (pcm_getflags(d->dev) & SD_F_BITPERFECT)) { 351 *min_rate = min(*min_rate, caps->minspeed); 352 *max_rate = max(*max_rate, caps->maxspeed); 353 } else { 354 *min_rate = min(*min_rate, feeder_rate_min); 355 *max_rate = max(*max_rate, feeder_rate_max); 356 } 357 CHN_UNLOCK(c); 358 } 359 if (*min_rate == UINT32_MAX) 360 *min_rate = 0; 361 if (*minchn == UINT32_MAX) 362 *minchn = 0; 363 } 364 365 static nvlist_t * 366 sndstat_create_diinfo_nv(uint32_t min_rate, uint32_t max_rate, uint32_t formats, 367 uint32_t min_chn, uint32_t max_chn) 368 { 369 nvlist_t *nv; 370 371 nv = nvlist_create(0); 372 if (nv == NULL) 373 return (NULL); 374 nvlist_add_number(nv, SNDST_DSPS_INFO_MIN_RATE, min_rate); 375 nvlist_add_number(nv, SNDST_DSPS_INFO_MAX_RATE, max_rate); 376 nvlist_add_number(nv, SNDST_DSPS_INFO_FORMATS, formats); 377 nvlist_add_number(nv, SNDST_DSPS_INFO_MIN_CHN, min_chn); 378 nvlist_add_number(nv, SNDST_DSPS_INFO_MAX_CHN, max_chn); 379 return (nv); 380 } 381 382 static int 383 sndstat_build_sound4_nvlist(struct snddev_info *d, nvlist_t **dip) 384 { 385 struct pcm_channel *c; 386 struct pcm_feeder *f; 387 struct sbuf sb; 388 uint32_t maxrate, minrate, fmts, minchn, maxchn, caps; 389 nvlist_t *di = NULL, *sound4di = NULL, *diinfo = NULL, *cdi = NULL; 390 int err, nchan; 391 392 di = nvlist_create(0); 393 if (di == NULL) { 394 err = ENOMEM; 395 goto done; 396 } 397 sound4di = nvlist_create(0); 398 if (sound4di == NULL) { 399 err = ENOMEM; 400 goto done; 401 } 402 403 nvlist_add_bool(di, SNDST_DSPS_FROM_USER, false); 404 nvlist_add_stringf(di, SNDST_DSPS_NAMEUNIT, "%s", 405 device_get_nameunit(d->dev)); 406 nvlist_add_stringf(di, SNDST_DSPS_DEVNODE, "dsp%d", 407 device_get_unit(d->dev)); 408 nvlist_add_string( 409 di, SNDST_DSPS_DESC, device_get_desc(d->dev)); 410 411 PCM_ACQUIRE_QUICK(d); 412 nvlist_add_number(di, SNDST_DSPS_PCHAN, d->playcount); 413 nvlist_add_number(di, SNDST_DSPS_RCHAN, d->reccount); 414 if (d->playcount > 0) { 415 sndstat_get_caps(d, PCMDIR_PLAY, &minrate, &maxrate, &fmts, 416 &minchn, &maxchn); 417 nvlist_add_number(di, "pminrate", minrate); 418 nvlist_add_number(di, "pmaxrate", maxrate); 419 nvlist_add_number(di, "pfmts", fmts); 420 diinfo = sndstat_create_diinfo_nv(minrate, maxrate, fmts, 421 minchn, maxchn); 422 if (diinfo == NULL) 423 nvlist_set_error(di, ENOMEM); 424 else 425 nvlist_move_nvlist(di, SNDST_DSPS_INFO_PLAY, diinfo); 426 } 427 if (d->reccount > 0) { 428 sndstat_get_caps(d, PCMDIR_REC, &minrate, &maxrate, &fmts, 429 &minchn, &maxchn); 430 nvlist_add_number(di, "rminrate", minrate); 431 nvlist_add_number(di, "rmaxrate", maxrate); 432 nvlist_add_number(di, "rfmts", fmts); 433 diinfo = sndstat_create_diinfo_nv(minrate, maxrate, fmts, 434 minchn, maxchn); 435 if (diinfo == NULL) 436 nvlist_set_error(di, ENOMEM); 437 else 438 nvlist_move_nvlist(di, SNDST_DSPS_INFO_REC, diinfo); 439 } 440 441 nvlist_add_number(sound4di, SNDST_DSPS_SOUND4_UNIT, 442 device_get_unit(d->dev)); // XXX: I want signed integer here 443 nvlist_add_string(sound4di, SNDST_DSPS_SOUND4_STATUS, d->status); 444 nvlist_add_bool( 445 sound4di, SNDST_DSPS_SOUND4_BITPERFECT, d->flags & SD_F_BITPERFECT); 446 nvlist_add_number(sound4di, SNDST_DSPS_SOUND4_PVCHAN, d->pvchancount); 447 nvlist_add_number(sound4di, SNDST_DSPS_SOUND4_PVCHANRATE, 448 d->pvchanrate); 449 nvlist_add_number(sound4di, SNDST_DSPS_SOUND4_PVCHANFORMAT, 450 d->pvchanformat); 451 nvlist_add_number(sound4di, SNDST_DSPS_SOUND4_RVCHAN, d->rvchancount); 452 nvlist_add_number(sound4di, SNDST_DSPS_SOUND4_RVCHANRATE, 453 d->rvchanrate); 454 nvlist_add_number(sound4di, SNDST_DSPS_SOUND4_RVCHANFORMAT, 455 d->rvchanformat); 456 457 nchan = 0; 458 CHN_FOREACH(c, d, channels.pcm) { 459 sbuf_new(&sb, NULL, 4096, SBUF_AUTOEXTEND); 460 cdi = nvlist_create(0); 461 if (cdi == NULL) { 462 sbuf_delete(&sb); 463 PCM_RELEASE_QUICK(d); 464 err = ENOMEM; 465 goto done; 466 } 467 468 CHN_LOCK(c); 469 470 caps = PCM_CAP_REALTIME | PCM_CAP_MMAP | PCM_CAP_TRIGGER | 471 ((c->flags & CHN_F_VIRTUAL) ? PCM_CAP_VIRTUAL : 0) | 472 ((c->direction == PCMDIR_PLAY) ? PCM_CAP_OUTPUT : PCM_CAP_INPUT); 473 474 nvlist_add_string(cdi, SNDST_DSPS_SOUND4_CHAN_NAME, c->name); 475 nvlist_add_string(cdi, SNDST_DSPS_SOUND4_CHAN_PARENTCHAN, 476 c->parentchannel != NULL ? c->parentchannel->name : ""); 477 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_UNIT, nchan++); 478 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_CAPS, caps); 479 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_LATENCY, 480 c->latency); 481 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_RATE, c->speed); 482 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_FORMAT, 483 c->format); 484 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_PID, c->pid); 485 nvlist_add_string(cdi, SNDST_DSPS_SOUND4_CHAN_COMM, c->comm); 486 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_INTR, 487 c->interrupts); 488 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_FEEDCNT, 489 c->feedcount); 490 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_XRUNS, c->xruns); 491 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_LEFTVOL, 492 CHN_GETVOLUME(c, SND_VOL_C_PCM, SND_CHN_T_FL)); 493 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_RIGHTVOL, 494 CHN_GETVOLUME(c, SND_VOL_C_PCM, SND_CHN_T_FR)); 495 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_HWBUF_FORMAT, 496 sndbuf_getfmt(c->bufhard)); 497 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_HWBUF_SIZE, 498 sndbuf_getsize(c->bufhard)); 499 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_HWBUF_BLKSZ, 500 sndbuf_getblksz(c->bufhard)); 501 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_HWBUF_BLKCNT, 502 sndbuf_getblkcnt(c->bufhard)); 503 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_HWBUF_FREE, 504 sndbuf_getfree(c->bufhard)); 505 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_HWBUF_READY, 506 sndbuf_getready(c->bufhard)); 507 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_SWBUF_FORMAT, 508 sndbuf_getfmt(c->bufsoft)); 509 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_SWBUF_SIZE, 510 sndbuf_getsize(c->bufsoft)); 511 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_SWBUF_BLKSZ, 512 sndbuf_getblksz(c->bufsoft)); 513 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_SWBUF_BLKCNT, 514 sndbuf_getblkcnt(c->bufsoft)); 515 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_SWBUF_FREE, 516 sndbuf_getfree(c->bufsoft)); 517 nvlist_add_number(cdi, SNDST_DSPS_SOUND4_CHAN_SWBUF_READY, 518 sndbuf_getready(c->bufsoft)); 519 520 sbuf_printf(&sb, "[%s", 521 (c->direction == PCMDIR_REC) ? "hardware" : "userland"); 522 sbuf_printf(&sb, " -> "); 523 f = c->feeder; 524 while (f->source != NULL) 525 f = f->source; 526 while (f != NULL) { 527 sbuf_printf(&sb, "%s", f->class->name); 528 if (f->desc->type == FEEDER_FORMAT) { 529 sbuf_printf(&sb, "(0x%08x -> 0x%08x)", 530 f->desc->in, f->desc->out); 531 } else if (f->desc->type == FEEDER_MATRIX) { 532 sbuf_printf(&sb, "(%d.%d -> %d.%d)", 533 AFMT_CHANNEL(f->desc->in) - 534 AFMT_EXTCHANNEL(f->desc->in), 535 AFMT_EXTCHANNEL(f->desc->in), 536 AFMT_CHANNEL(f->desc->out) - 537 AFMT_EXTCHANNEL(f->desc->out), 538 AFMT_EXTCHANNEL(f->desc->out)); 539 } else if (f->desc->type == FEEDER_RATE) { 540 sbuf_printf(&sb, 541 "(0x%08x q:%d %d -> %d)", 542 f->desc->out, 543 FEEDER_GET(f, FEEDRATE_QUALITY), 544 FEEDER_GET(f, FEEDRATE_SRC), 545 FEEDER_GET(f, FEEDRATE_DST)); 546 } else { 547 sbuf_printf(&sb, "(0x%08x)", 548 f->desc->out); 549 } 550 sbuf_printf(&sb, " -> "); 551 f = f->parent; 552 } 553 sbuf_printf(&sb, "%s]", 554 (c->direction == PCMDIR_REC) ? "userland" : "hardware"); 555 556 CHN_UNLOCK(c); 557 558 sbuf_finish(&sb); 559 nvlist_add_string(cdi, SNDST_DSPS_SOUND4_CHAN_FEEDERCHAIN, 560 sbuf_data(&sb)); 561 sbuf_delete(&sb); 562 563 nvlist_append_nvlist_array(sound4di, 564 SNDST_DSPS_SOUND4_CHAN_INFO, cdi); 565 nvlist_destroy(cdi); 566 err = nvlist_error(sound4di); 567 if (err) { 568 PCM_RELEASE_QUICK(d); 569 goto done; 570 } 571 } 572 nvlist_move_nvlist(di, SNDST_DSPS_PROVIDER_INFO, sound4di); 573 sound4di = NULL; 574 575 PCM_RELEASE_QUICK(d); 576 nvlist_add_string(di, SNDST_DSPS_PROVIDER, SNDST_DSPS_SOUND4_PROVIDER); 577 578 err = nvlist_error(di); 579 if (err) 580 goto done; 581 582 *dip = di; 583 584 done: 585 if (err) { 586 nvlist_destroy(sound4di); 587 nvlist_destroy(di); 588 } 589 return (err); 590 } 591 592 static int 593 sndstat_build_userland_nvlist(struct sndstat_userdev *ud, nvlist_t **dip) 594 { 595 nvlist_t *di, *diinfo; 596 int err; 597 598 di = nvlist_create(0); 599 if (di == NULL) { 600 err = ENOMEM; 601 goto done; 602 } 603 604 nvlist_add_bool(di, SNDST_DSPS_FROM_USER, true); 605 nvlist_add_number(di, SNDST_DSPS_PCHAN, ud->pchan); 606 nvlist_add_number(di, SNDST_DSPS_RCHAN, ud->rchan); 607 nvlist_add_string(di, SNDST_DSPS_NAMEUNIT, ud->nameunit); 608 nvlist_add_string( 609 di, SNDST_DSPS_DEVNODE, ud->devnode); 610 nvlist_add_string(di, SNDST_DSPS_DESC, ud->desc); 611 if (ud->pchan != 0) { 612 nvlist_add_number(di, "pminrate", 613 ud->info_play.min_rate); 614 nvlist_add_number(di, "pmaxrate", 615 ud->info_play.max_rate); 616 nvlist_add_number(di, "pfmts", 617 ud->info_play.formats); 618 diinfo = sndstat_create_diinfo_nv(ud->info_play.min_rate, 619 ud->info_play.max_rate, ud->info_play.formats, 620 ud->info_play.min_chn, ud->info_play.max_chn); 621 if (diinfo == NULL) 622 nvlist_set_error(di, ENOMEM); 623 else 624 nvlist_move_nvlist(di, SNDST_DSPS_INFO_PLAY, diinfo); 625 } 626 if (ud->rchan != 0) { 627 nvlist_add_number(di, "rminrate", 628 ud->info_rec.min_rate); 629 nvlist_add_number(di, "rmaxrate", 630 ud->info_rec.max_rate); 631 nvlist_add_number(di, "rfmts", 632 ud->info_rec.formats); 633 diinfo = sndstat_create_diinfo_nv(ud->info_rec.min_rate, 634 ud->info_rec.max_rate, ud->info_rec.formats, 635 ud->info_rec.min_chn, ud->info_rec.max_chn); 636 if (diinfo == NULL) 637 nvlist_set_error(di, ENOMEM); 638 else 639 nvlist_move_nvlist(di, SNDST_DSPS_INFO_REC, diinfo); 640 } 641 nvlist_add_string(di, SNDST_DSPS_PROVIDER, 642 (ud->provider != NULL) ? ud->provider : ""); 643 if (ud->provider_nvl != NULL) 644 nvlist_add_nvlist( 645 di, SNDST_DSPS_PROVIDER_INFO, ud->provider_nvl); 646 647 err = nvlist_error(di); 648 if (err) 649 goto done; 650 651 *dip = di; 652 653 done: 654 if (err) 655 nvlist_destroy(di); 656 return (err); 657 } 658 659 /* 660 * Should only be called with the following locks held: 661 * * sndstat_lock 662 */ 663 static int 664 sndstat_create_devs_nvlist(nvlist_t **nvlp) 665 { 666 int err; 667 nvlist_t *nvl; 668 struct sndstat_entry *ent; 669 struct sndstat_file *pf; 670 671 nvl = nvlist_create(0); 672 if (nvl == NULL) 673 return (ENOMEM); 674 675 TAILQ_FOREACH(ent, &sndstat_devlist, link) { 676 struct snddev_info *d; 677 nvlist_t *di; 678 679 d = device_get_softc(ent->dev); 680 if (!PCM_REGISTERED(d)) 681 continue; 682 683 err = sndstat_build_sound4_nvlist(d, &di); 684 if (err) 685 goto done; 686 687 nvlist_append_nvlist_array(nvl, SNDST_DSPS, di); 688 nvlist_destroy(di); 689 err = nvlist_error(nvl); 690 if (err) 691 goto done; 692 } 693 694 TAILQ_FOREACH(pf, &sndstat_filelist, entry) { 695 struct sndstat_userdev *ud; 696 697 sx_xlock(&pf->lock); 698 699 TAILQ_FOREACH(ud, &pf->userdev_list, link) { 700 nvlist_t *di; 701 702 err = sndstat_build_userland_nvlist(ud, &di); 703 if (err != 0) { 704 sx_xunlock(&pf->lock); 705 goto done; 706 } 707 nvlist_append_nvlist_array(nvl, SNDST_DSPS, di); 708 nvlist_destroy(di); 709 710 err = nvlist_error(nvl); 711 if (err != 0) { 712 sx_xunlock(&pf->lock); 713 goto done; 714 } 715 } 716 717 sx_xunlock(&pf->lock); 718 } 719 720 *nvlp = nvl; 721 722 done: 723 if (err != 0) 724 nvlist_destroy(nvl); 725 return (err); 726 } 727 728 static int 729 sndstat_refresh_devs(struct sndstat_file *pf) 730 { 731 sx_xlock(&pf->lock); 732 free(pf->devs_nvlbuf, M_NVLIST); 733 pf->devs_nvlbuf = NULL; 734 pf->devs_nbytes = 0; 735 sx_unlock(&pf->lock); 736 737 return (0); 738 } 739 740 static int 741 sndstat_get_devs(struct sndstat_file *pf, void *arg_buf, size_t *arg_nbytes) 742 { 743 int err; 744 745 SNDSTAT_LOCK(); 746 sx_xlock(&pf->lock); 747 748 if (pf->devs_nvlbuf == NULL) { 749 nvlist_t *nvl; 750 void *nvlbuf; 751 size_t nbytes; 752 int err; 753 754 sx_xunlock(&pf->lock); 755 756 err = sndstat_create_devs_nvlist(&nvl); 757 if (err) { 758 SNDSTAT_UNLOCK(); 759 return (err); 760 } 761 762 sx_xlock(&pf->lock); 763 764 nvlbuf = nvlist_pack(nvl, &nbytes); 765 err = nvlist_error(nvl); 766 nvlist_destroy(nvl); 767 if (nvlbuf == NULL || err != 0) { 768 SNDSTAT_UNLOCK(); 769 sx_xunlock(&pf->lock); 770 if (err == 0) 771 return (ENOMEM); 772 return (err); 773 } 774 775 free(pf->devs_nvlbuf, M_NVLIST); 776 pf->devs_nvlbuf = nvlbuf; 777 pf->devs_nbytes = nbytes; 778 } 779 780 SNDSTAT_UNLOCK(); 781 782 if (*arg_nbytes == 0) { 783 *arg_nbytes = pf->devs_nbytes; 784 err = 0; 785 goto done; 786 } 787 if (*arg_nbytes < pf->devs_nbytes) { 788 *arg_nbytes = 0; 789 err = 0; 790 goto done; 791 } 792 793 err = copyout(pf->devs_nvlbuf, arg_buf, pf->devs_nbytes); 794 if (err) 795 goto done; 796 797 *arg_nbytes = pf->devs_nbytes; 798 799 free(pf->devs_nvlbuf, M_NVLIST); 800 pf->devs_nvlbuf = NULL; 801 pf->devs_nbytes = 0; 802 803 done: 804 sx_unlock(&pf->lock); 805 return (err); 806 } 807 808 static int 809 sndstat_unpack_user_nvlbuf(const void *unvlbuf, size_t nbytes, nvlist_t **nvl) 810 { 811 void *nvlbuf; 812 int err; 813 814 nvlbuf = malloc(nbytes, M_DEVBUF, M_WAITOK); 815 err = copyin(unvlbuf, nvlbuf, nbytes); 816 if (err != 0) { 817 free(nvlbuf, M_DEVBUF); 818 return (err); 819 } 820 *nvl = nvlist_unpack(nvlbuf, nbytes, 0); 821 free(nvlbuf, M_DEVBUF); 822 if (*nvl == NULL) { 823 return (EINVAL); 824 } 825 826 return (0); 827 } 828 829 static bool 830 sndstat_diinfo_is_sane(const nvlist_t *diinfo) 831 { 832 if (!(nvlist_exists_number(diinfo, SNDST_DSPS_INFO_MIN_RATE) && 833 nvlist_exists_number(diinfo, SNDST_DSPS_INFO_MAX_RATE) && 834 nvlist_exists_number(diinfo, SNDST_DSPS_INFO_FORMATS) && 835 nvlist_exists_number(diinfo, SNDST_DSPS_INFO_MIN_CHN) && 836 nvlist_exists_number(diinfo, SNDST_DSPS_INFO_MAX_CHN))) 837 return (false); 838 return (true); 839 } 840 841 static bool 842 sndstat_dsp_nvlist_is_sane(const nvlist_t *nvlist) 843 { 844 if (!(nvlist_exists_string(nvlist, SNDST_DSPS_DEVNODE) && 845 nvlist_exists_string(nvlist, SNDST_DSPS_DESC) && 846 nvlist_exists_number(nvlist, SNDST_DSPS_PCHAN) && 847 nvlist_exists_number(nvlist, SNDST_DSPS_RCHAN))) 848 return (false); 849 850 if (nvlist_get_number(nvlist, SNDST_DSPS_PCHAN) > 0) { 851 if (nvlist_exists_nvlist(nvlist, SNDST_DSPS_INFO_PLAY)) { 852 if (!sndstat_diinfo_is_sane(nvlist_get_nvlist(nvlist, 853 SNDST_DSPS_INFO_PLAY))) 854 return (false); 855 } else if (!(nvlist_exists_number(nvlist, "pminrate") && 856 nvlist_exists_number(nvlist, "pmaxrate") && 857 nvlist_exists_number(nvlist, "pfmts"))) 858 return (false); 859 } 860 861 if (nvlist_get_number(nvlist, SNDST_DSPS_RCHAN) > 0) { 862 if (nvlist_exists_nvlist(nvlist, SNDST_DSPS_INFO_REC)) { 863 if (!sndstat_diinfo_is_sane(nvlist_get_nvlist(nvlist, 864 SNDST_DSPS_INFO_REC))) 865 return (false); 866 } else if (!(nvlist_exists_number(nvlist, "rminrate") && 867 nvlist_exists_number(nvlist, "rmaxrate") && 868 nvlist_exists_number(nvlist, "rfmts"))) 869 return (false); 870 } 871 872 return (true); 873 874 } 875 876 static void 877 sndstat_get_diinfo_nv(const nvlist_t *nv, uint32_t *min_rate, 878 uint32_t *max_rate, uint32_t *formats, uint32_t *min_chn, 879 uint32_t *max_chn) 880 { 881 *min_rate = nvlist_get_number(nv, SNDST_DSPS_INFO_MIN_RATE); 882 *max_rate = nvlist_get_number(nv, SNDST_DSPS_INFO_MAX_RATE); 883 *formats = nvlist_get_number(nv, SNDST_DSPS_INFO_FORMATS); 884 *min_chn = nvlist_get_number(nv, SNDST_DSPS_INFO_MIN_CHN); 885 *max_chn = nvlist_get_number(nv, SNDST_DSPS_INFO_MAX_CHN); 886 } 887 888 static int 889 sndstat_dsp_unpack_nvlist(const nvlist_t *nvlist, struct sndstat_userdev *ud) 890 { 891 const char *nameunit, *devnode, *desc; 892 unsigned int pchan, rchan; 893 uint32_t pminrate = 0, pmaxrate = 0; 894 uint32_t rminrate = 0, rmaxrate = 0; 895 uint32_t pfmts = 0, rfmts = 0; 896 uint32_t pminchn = 0, pmaxchn = 0; 897 uint32_t rminchn = 0, rmaxchn = 0; 898 nvlist_t *provider_nvl = NULL; 899 const nvlist_t *diinfo; 900 const char *provider; 901 902 devnode = nvlist_get_string(nvlist, SNDST_DSPS_DEVNODE); 903 if (nvlist_exists_string(nvlist, SNDST_DSPS_NAMEUNIT)) 904 nameunit = nvlist_get_string(nvlist, SNDST_DSPS_NAMEUNIT); 905 else 906 nameunit = devnode; 907 desc = nvlist_get_string(nvlist, SNDST_DSPS_DESC); 908 pchan = nvlist_get_number(nvlist, SNDST_DSPS_PCHAN); 909 rchan = nvlist_get_number(nvlist, SNDST_DSPS_RCHAN); 910 if (pchan != 0) { 911 if (nvlist_exists_nvlist(nvlist, SNDST_DSPS_INFO_PLAY)) { 912 diinfo = nvlist_get_nvlist(nvlist, 913 SNDST_DSPS_INFO_PLAY); 914 sndstat_get_diinfo_nv(diinfo, &pminrate, &pmaxrate, 915 &pfmts, &pminchn, &pmaxchn); 916 } else { 917 pminrate = nvlist_get_number(nvlist, "pminrate"); 918 pmaxrate = nvlist_get_number(nvlist, "pmaxrate"); 919 pfmts = nvlist_get_number(nvlist, "pfmts"); 920 } 921 } 922 if (rchan != 0) { 923 if (nvlist_exists_nvlist(nvlist, SNDST_DSPS_INFO_REC)) { 924 diinfo = nvlist_get_nvlist(nvlist, 925 SNDST_DSPS_INFO_REC); 926 sndstat_get_diinfo_nv(diinfo, &rminrate, &rmaxrate, 927 &rfmts, &rminchn, &rmaxchn); 928 } else { 929 rminrate = nvlist_get_number(nvlist, "rminrate"); 930 rmaxrate = nvlist_get_number(nvlist, "rmaxrate"); 931 rfmts = nvlist_get_number(nvlist, "rfmts"); 932 } 933 } 934 935 provider = dnvlist_get_string(nvlist, SNDST_DSPS_PROVIDER, ""); 936 if (provider[0] == '\0') 937 provider = NULL; 938 939 if (provider != NULL && 940 nvlist_exists_nvlist(nvlist, SNDST_DSPS_PROVIDER_INFO)) { 941 provider_nvl = nvlist_clone( 942 nvlist_get_nvlist(nvlist, SNDST_DSPS_PROVIDER_INFO)); 943 if (provider_nvl == NULL) 944 return (ENOMEM); 945 } 946 947 ud->provider = (provider != NULL) ? strdup(provider, M_DEVBUF) : NULL; 948 ud->devnode = strdup(devnode, M_DEVBUF); 949 ud->nameunit = strdup(nameunit, M_DEVBUF); 950 ud->desc = strdup(desc, M_DEVBUF); 951 ud->pchan = pchan; 952 ud->rchan = rchan; 953 ud->info_play.min_rate = pminrate; 954 ud->info_play.max_rate = pmaxrate; 955 ud->info_play.formats = pfmts; 956 ud->info_play.min_chn = pminchn; 957 ud->info_play.max_chn = pmaxchn; 958 ud->info_rec.min_rate = rminrate; 959 ud->info_rec.max_rate = rmaxrate; 960 ud->info_rec.formats = rfmts; 961 ud->info_rec.min_chn = rminchn; 962 ud->info_rec.max_chn = rmaxchn; 963 ud->provider_nvl = provider_nvl; 964 return (0); 965 } 966 967 static int 968 sndstat_add_user_devs(struct sndstat_file *pf, void *nvlbuf, size_t nbytes) 969 { 970 int err; 971 nvlist_t *nvl = NULL; 972 const nvlist_t * const *dsps; 973 size_t i, ndsps; 974 975 if ((pf->fflags & FWRITE) == 0) { 976 err = EPERM; 977 goto done; 978 } 979 980 if (nbytes > SNDST_UNVLBUF_MAX) { 981 err = ENOMEM; 982 goto done; 983 } 984 985 err = sndstat_unpack_user_nvlbuf(nvlbuf, nbytes, &nvl); 986 if (err != 0) 987 goto done; 988 989 if (!nvlist_exists_nvlist_array(nvl, SNDST_DSPS)) { 990 err = EINVAL; 991 goto done; 992 } 993 dsps = nvlist_get_nvlist_array(nvl, SNDST_DSPS, &ndsps); 994 for (i = 0; i < ndsps; i++) { 995 if (!sndstat_dsp_nvlist_is_sane(dsps[i])) { 996 err = EINVAL; 997 goto done; 998 } 999 } 1000 sx_xlock(&pf->lock); 1001 for (i = 0; i < ndsps; i++) { 1002 struct sndstat_userdev *ud = 1003 malloc(sizeof(*ud), M_DEVBUF, M_WAITOK); 1004 err = sndstat_dsp_unpack_nvlist(dsps[i], ud); 1005 if (err) { 1006 sx_unlock(&pf->lock); 1007 goto done; 1008 } 1009 TAILQ_INSERT_TAIL(&pf->userdev_list, ud, link); 1010 } 1011 sx_unlock(&pf->lock); 1012 1013 done: 1014 nvlist_destroy(nvl); 1015 return (err); 1016 } 1017 1018 static int 1019 sndstat_flush_user_devs(struct sndstat_file *pf) 1020 { 1021 if ((pf->fflags & FWRITE) == 0) 1022 return (EPERM); 1023 1024 sx_xlock(&pf->lock); 1025 sndstat_remove_all_userdevs(pf); 1026 sx_xunlock(&pf->lock); 1027 1028 return (0); 1029 } 1030 1031 static int 1032 sndstat_ioctl( 1033 struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td) 1034 { 1035 int err; 1036 struct sndstat_file *pf; 1037 struct sndstioc_nv_arg *arg; 1038 #ifdef COMPAT_FREEBSD32 1039 struct sndstioc_nv_arg32 *arg32; 1040 size_t nbytes; 1041 #endif 1042 1043 err = devfs_get_cdevpriv((void **)&pf); 1044 if (err != 0) 1045 return (err); 1046 1047 switch (cmd) { 1048 case SNDSTIOC_GET_DEVS: 1049 arg = (struct sndstioc_nv_arg *)data; 1050 err = sndstat_get_devs(pf, arg->buf, &arg->nbytes); 1051 break; 1052 #ifdef COMPAT_FREEBSD32 1053 case SNDSTIOC_GET_DEVS32: 1054 arg32 = (struct sndstioc_nv_arg32 *)data; 1055 nbytes = arg32->nbytes; 1056 err = sndstat_get_devs(pf, (void *)(uintptr_t)arg32->buf, 1057 &nbytes); 1058 if (err == 0) { 1059 KASSERT(nbytes < UINT_MAX, ("impossibly many bytes")); 1060 arg32->nbytes = nbytes; 1061 } 1062 break; 1063 #endif 1064 case SNDSTIOC_ADD_USER_DEVS: 1065 arg = (struct sndstioc_nv_arg *)data; 1066 err = sndstat_add_user_devs(pf, arg->buf, arg->nbytes); 1067 break; 1068 #ifdef COMPAT_FREEBSD32 1069 case SNDSTIOC_ADD_USER_DEVS32: 1070 arg32 = (struct sndstioc_nv_arg32 *)data; 1071 err = sndstat_add_user_devs(pf, (void *)(uintptr_t)arg32->buf, 1072 arg32->nbytes); 1073 break; 1074 #endif 1075 case SNDSTIOC_REFRESH_DEVS: 1076 err = sndstat_refresh_devs(pf); 1077 break; 1078 case SNDSTIOC_FLUSH_USER_DEVS: 1079 err = sndstat_flush_user_devs(pf); 1080 break; 1081 default: 1082 err = ENODEV; 1083 } 1084 1085 return (err); 1086 } 1087 1088 static struct sndstat_userdev * 1089 sndstat_line2userdev(struct sndstat_file *pf, const char *line, int n) 1090 { 1091 struct sndstat_userdev *ud; 1092 const char *e, *m; 1093 1094 ud = malloc(sizeof(*ud), M_DEVBUF, M_WAITOK|M_ZERO); 1095 1096 ud->provider = NULL; 1097 ud->provider_nvl = NULL; 1098 e = strchr(line, ':'); 1099 if (e == NULL) 1100 goto fail; 1101 ud->nameunit = strndup(line, e - line, M_DEVBUF); 1102 ud->devnode = (char *)malloc(e - line + 1, M_DEVBUF, M_WAITOK | M_ZERO); 1103 strlcat(ud->devnode, ud->nameunit, e - line + 1); 1104 line = e + 1; 1105 1106 e = strchr(line, '<'); 1107 if (e == NULL) 1108 goto fail; 1109 line = e + 1; 1110 e = strrchr(line, '>'); 1111 if (e == NULL) 1112 goto fail; 1113 ud->desc = strndup(line, e - line, M_DEVBUF); 1114 line = e + 1; 1115 1116 e = strchr(line, '('); 1117 if (e == NULL) 1118 goto fail; 1119 line = e + 1; 1120 e = strrchr(line, ')'); 1121 if (e == NULL) 1122 goto fail; 1123 m = strstr(line, "play"); 1124 if (m != NULL && m < e) 1125 ud->pchan = 1; 1126 m = strstr(line, "rec"); 1127 if (m != NULL && m < e) 1128 ud->rchan = 1; 1129 1130 return (ud); 1131 1132 fail: 1133 free(ud->nameunit, M_DEVBUF); 1134 free(ud->devnode, M_DEVBUF); 1135 free(ud->desc, M_DEVBUF); 1136 free(ud, M_DEVBUF); 1137 return (NULL); 1138 } 1139 1140 /************************************************************************/ 1141 1142 int 1143 sndstat_register(device_t dev, char *str) 1144 { 1145 struct sndstat_entry *ent; 1146 struct sndstat_entry *pre; 1147 const char *devtype; 1148 int type, unit; 1149 1150 unit = device_get_unit(dev); 1151 devtype = device_get_name(dev); 1152 if (!strcmp(devtype, "pcm")) 1153 type = SS_TYPE_PCM; 1154 else if (!strcmp(devtype, "midi")) 1155 type = SS_TYPE_MIDI; 1156 else if (!strcmp(devtype, "sequencer")) 1157 type = SS_TYPE_SEQUENCER; 1158 else 1159 return (EINVAL); 1160 1161 ent = malloc(sizeof *ent, M_DEVBUF, M_WAITOK | M_ZERO); 1162 ent->dev = dev; 1163 ent->str = str; 1164 ent->type = type; 1165 ent->unit = unit; 1166 1167 SNDSTAT_LOCK(); 1168 /* sorted list insertion */ 1169 TAILQ_FOREACH(pre, &sndstat_devlist, link) { 1170 if (pre->unit > unit) 1171 break; 1172 else if (pre->unit < unit) 1173 continue; 1174 if (pre->type > type) 1175 break; 1176 else if (pre->type < unit) 1177 continue; 1178 } 1179 if (pre == NULL) { 1180 TAILQ_INSERT_TAIL(&sndstat_devlist, ent, link); 1181 } else { 1182 TAILQ_INSERT_BEFORE(pre, ent, link); 1183 } 1184 SNDSTAT_UNLOCK(); 1185 1186 return (0); 1187 } 1188 1189 int 1190 sndstat_unregister(device_t dev) 1191 { 1192 struct sndstat_entry *ent; 1193 int error = ENXIO; 1194 1195 SNDSTAT_LOCK(); 1196 TAILQ_FOREACH(ent, &sndstat_devlist, link) { 1197 if (ent->dev == dev) { 1198 TAILQ_REMOVE(&sndstat_devlist, ent, link); 1199 free(ent, M_DEVBUF); 1200 error = 0; 1201 break; 1202 } 1203 } 1204 SNDSTAT_UNLOCK(); 1205 1206 return (error); 1207 } 1208 1209 /************************************************************************/ 1210 1211 static int 1212 sndstat_prepare_pcm(struct sbuf *s, device_t dev, int verbose) 1213 { 1214 struct snddev_info *d; 1215 struct pcm_channel *c; 1216 struct pcm_feeder *f; 1217 1218 d = device_get_softc(dev); 1219 PCM_BUSYASSERT(d); 1220 1221 if (CHN_EMPTY(d, channels.pcm)) { 1222 sbuf_printf(s, " (mixer only)"); 1223 return (0); 1224 } 1225 1226 if (verbose < 1) { 1227 sbuf_printf(s, " (%s%s%s", 1228 d->playcount ? "play" : "", 1229 (d->playcount && d->reccount) ? "/" : "", 1230 d->reccount ? "rec" : ""); 1231 } else { 1232 sbuf_printf(s, " (%dp:%dv/%dr:%dv", 1233 d->playcount, d->pvchancount, 1234 d->reccount, d->rvchancount); 1235 } 1236 sbuf_printf(s, "%s)%s", 1237 ((d->playcount != 0 && d->reccount != 0) && 1238 (d->flags & SD_F_SIMPLEX)) ? " simplex" : "", 1239 (device_get_unit(dev) == snd_unit) ? " default" : ""); 1240 1241 if (verbose <= 1) 1242 return (0); 1243 1244 sbuf_printf(s, "\n\t"); 1245 sbuf_printf(s, "snddev flags=0x%b", d->flags, SD_F_BITS); 1246 1247 CHN_FOREACH(c, d, channels.pcm) { 1248 KASSERT(c->bufhard != NULL && c->bufsoft != NULL, 1249 ("hosed pcm channel setup")); 1250 1251 CHN_LOCK(c); 1252 1253 sbuf_printf(s, "\n\t"); 1254 1255 sbuf_printf(s, "%s[%s]: ", 1256 (c->parentchannel != NULL) ? 1257 c->parentchannel->name : "", c->name); 1258 sbuf_printf(s, "spd %d", c->speed); 1259 if (c->speed != sndbuf_getspd(c->bufhard)) { 1260 sbuf_printf(s, "/%d", 1261 sndbuf_getspd(c->bufhard)); 1262 } 1263 sbuf_printf(s, ", fmt 0x%08x", c->format); 1264 if (c->format != sndbuf_getfmt(c->bufhard)) { 1265 sbuf_printf(s, "/0x%08x", 1266 sndbuf_getfmt(c->bufhard)); 1267 } 1268 sbuf_printf(s, ", flags 0x%08x, 0x%08x", 1269 c->flags, c->feederflags); 1270 if (c->pid != -1) { 1271 sbuf_printf(s, ", pid %d (%s)", 1272 c->pid, c->comm); 1273 } 1274 sbuf_printf(s, "\n\t"); 1275 1276 sbuf_printf(s, "interrupts %d, ", c->interrupts); 1277 1278 if (c->direction == PCMDIR_REC) { 1279 sbuf_printf(s, 1280 "overruns %d, feed %u, hfree %d, " 1281 "sfree %d [b:%d/%d/%d|bs:%d/%d/%d]", 1282 c->xruns, c->feedcount, 1283 sndbuf_getfree(c->bufhard), 1284 sndbuf_getfree(c->bufsoft), 1285 sndbuf_getsize(c->bufhard), 1286 sndbuf_getblksz(c->bufhard), 1287 sndbuf_getblkcnt(c->bufhard), 1288 sndbuf_getsize(c->bufsoft), 1289 sndbuf_getblksz(c->bufsoft), 1290 sndbuf_getblkcnt(c->bufsoft)); 1291 } else { 1292 sbuf_printf(s, 1293 "underruns %d, feed %u, ready %d " 1294 "[b:%d/%d/%d|bs:%d/%d/%d]", 1295 c->xruns, c->feedcount, 1296 sndbuf_getready(c->bufsoft), 1297 sndbuf_getsize(c->bufhard), 1298 sndbuf_getblksz(c->bufhard), 1299 sndbuf_getblkcnt(c->bufhard), 1300 sndbuf_getsize(c->bufsoft), 1301 sndbuf_getblksz(c->bufsoft), 1302 sndbuf_getblkcnt(c->bufsoft)); 1303 } 1304 sbuf_printf(s, "\n\t"); 1305 1306 sbuf_printf(s, "channel flags=0x%b", c->flags, CHN_F_BITS); 1307 sbuf_printf(s, "\n\t"); 1308 1309 sbuf_printf(s, "{%s}", 1310 (c->direction == PCMDIR_REC) ? "hardware" : "userland"); 1311 sbuf_printf(s, " -> "); 1312 f = c->feeder; 1313 while (f->source != NULL) 1314 f = f->source; 1315 while (f != NULL) { 1316 sbuf_printf(s, "%s", f->class->name); 1317 if (f->desc->type == FEEDER_FORMAT) { 1318 sbuf_printf(s, "(0x%08x -> 0x%08x)", 1319 f->desc->in, f->desc->out); 1320 } else if (f->desc->type == FEEDER_MATRIX) { 1321 sbuf_printf(s, "(%d.%d -> %d.%d)", 1322 AFMT_CHANNEL(f->desc->in) - 1323 AFMT_EXTCHANNEL(f->desc->in), 1324 AFMT_EXTCHANNEL(f->desc->in), 1325 AFMT_CHANNEL(f->desc->out) - 1326 AFMT_EXTCHANNEL(f->desc->out), 1327 AFMT_EXTCHANNEL(f->desc->out)); 1328 } else if (f->desc->type == FEEDER_RATE) { 1329 sbuf_printf(s, 1330 "(0x%08x q:%d %d -> %d)", 1331 f->desc->out, 1332 FEEDER_GET(f, FEEDRATE_QUALITY), 1333 FEEDER_GET(f, FEEDRATE_SRC), 1334 FEEDER_GET(f, FEEDRATE_DST)); 1335 } else { 1336 sbuf_printf(s, "(0x%08x)", 1337 f->desc->out); 1338 } 1339 sbuf_printf(s, " -> "); 1340 f = f->parent; 1341 } 1342 sbuf_printf(s, "{%s}", 1343 (c->direction == PCMDIR_REC) ? "userland" : "hardware"); 1344 1345 CHN_UNLOCK(c); 1346 } 1347 1348 return (0); 1349 } 1350 1351 static int 1352 sndstat_prepare(struct sndstat_file *pf_self) 1353 { 1354 struct sbuf *s = &pf_self->sbuf; 1355 struct sndstat_entry *ent; 1356 struct snddev_info *d; 1357 struct sndstat_file *pf; 1358 int k; 1359 1360 /* make sure buffer is reset */ 1361 sbuf_clear(s); 1362 1363 if (snd_verbose > 0) 1364 sbuf_printf(s, "FreeBSD Audio Driver\n"); 1365 1366 /* generate list of installed devices */ 1367 k = 0; 1368 TAILQ_FOREACH(ent, &sndstat_devlist, link) { 1369 d = device_get_softc(ent->dev); 1370 if (!PCM_REGISTERED(d)) 1371 continue; 1372 if (!k++) 1373 sbuf_printf(s, "Installed devices:\n"); 1374 sbuf_printf(s, "%s:", device_get_nameunit(ent->dev)); 1375 sbuf_printf(s, " <%s>", device_get_desc(ent->dev)); 1376 if (snd_verbose > 0) 1377 sbuf_printf(s, " %s", ent->str); 1378 /* XXX Need Giant magic entry ??? */ 1379 PCM_ACQUIRE_QUICK(d); 1380 sndstat_prepare_pcm(s, ent->dev, snd_verbose); 1381 PCM_RELEASE_QUICK(d); 1382 sbuf_printf(s, "\n"); 1383 } 1384 if (k == 0) 1385 sbuf_printf(s, "No devices installed.\n"); 1386 1387 /* append any input from userspace */ 1388 k = 0; 1389 TAILQ_FOREACH(pf, &sndstat_filelist, entry) { 1390 struct sndstat_userdev *ud; 1391 1392 if (pf == pf_self) 1393 continue; 1394 sx_xlock(&pf->lock); 1395 if (TAILQ_EMPTY(&pf->userdev_list)) { 1396 sx_unlock(&pf->lock); 1397 continue; 1398 } 1399 if (!k++) 1400 sbuf_printf(s, "Installed devices from userspace:\n"); 1401 TAILQ_FOREACH(ud, &pf->userdev_list, link) { 1402 const char *caps = (ud->pchan && ud->rchan) ? 1403 "play/rec" : 1404 (ud->pchan ? "play" : (ud->rchan ? "rec" : "")); 1405 sbuf_printf(s, "%s: <%s>", ud->nameunit, ud->desc); 1406 sbuf_printf(s, " (%s)", caps); 1407 sbuf_printf(s, "\n"); 1408 } 1409 sx_unlock(&pf->lock); 1410 } 1411 if (k == 0) 1412 sbuf_printf(s, "No devices installed from userspace.\n"); 1413 1414 sbuf_finish(s); 1415 return (sbuf_len(s)); 1416 } 1417 1418 static void 1419 sndstat_sysinit(void *p) 1420 { 1421 sx_init(&sndstat_lock, "sndstat lock"); 1422 sndstat_dev = make_dev(&sndstat_cdevsw, SND_DEV_STATUS, 1423 UID_ROOT, GID_WHEEL, 0644, "sndstat"); 1424 } 1425 SYSINIT(sndstat_sysinit, SI_SUB_DRIVERS, SI_ORDER_FIRST, sndstat_sysinit, NULL); 1426 1427 static void 1428 sndstat_sysuninit(void *p) 1429 { 1430 if (sndstat_dev != NULL) { 1431 /* destroy_dev() will wait for all references to go away */ 1432 destroy_dev(sndstat_dev); 1433 } 1434 sx_destroy(&sndstat_lock); 1435 } 1436 SYSUNINIT(sndstat_sysuninit, SI_SUB_DRIVERS, SI_ORDER_FIRST, sndstat_sysuninit, NULL); 1437