ctl.c revision 1.22
1 /* $NetBSD: ctl.c,v 1.22 1999/03/26 14:02:41 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss (at) netbsd.org). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/types.h> 40 #include <sys/stat.h> 41 #include <sys/ioctl.h> 42 #include <sys/audioio.h> 43 44 #include <err.h> 45 #include <fcntl.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <unistd.h> 50 51 #include <paths.h> 52 53 #include "libaudio.h" 54 55 /* yeah, for now ... */ 56 #if 1 57 #define _PATH_OAUDIO "/dev/audio" 58 #define _PATH_OAUDIOCTL "/dev/audioctl" 59 #endif 60 61 struct field *findfield __P((char *name)); 62 void prfield __P((struct field *p, char *sep)); 63 void rdfield __P((struct field *p, char *q)); 64 void getinfo __P((int fd)); 65 void audioctl_write __P((int, int, char *[])); 66 void usage __P((void)); 67 int main __P((int argc, char **argv)); 68 69 FILE *out = stdout; 70 71 char *prog; 72 73 audio_device_t adev; 74 75 audio_info_t info; 76 77 char encbuf[1000]; 78 79 int properties, fullduplex, rerror; 80 81 struct field { 82 char *name; 83 void *valp; 84 int format; 85 #define STRING 1 86 #define INT 2 87 #define UINT 3 88 #define P_R 4 89 #define ULONG 5 /* XXX obsolete now */ 90 #define UCHAR 6 91 #define ENC 7 92 #define PROPS 8 93 #define XINT 9 94 #define FORMAT 10 95 char flags; 96 #define READONLY 1 97 #define ALIAS 2 98 #define SET 4 99 } fields[] = { 100 { "name", &adev.name, STRING, READONLY }, 101 { "version", &adev.version, STRING, READONLY }, 102 { "config", &adev.config, STRING, READONLY }, 103 { "encodings", encbuf, STRING, READONLY }, 104 { "properties", &properties, PROPS, READONLY }, 105 { "full_duplex", &fullduplex, UINT, 0 }, 106 { "fullduplex", &fullduplex, UINT, 0 }, 107 { "blocksize", &info.blocksize, UINT, 0 }, 108 { "hiwat", &info.hiwat, UINT, 0 }, 109 { "lowat", &info.lowat, UINT, 0 }, 110 { "monitor_gain", &info.monitor_gain, UINT, 0 }, 111 { "mode", &info.mode, P_R, READONLY }, 112 { "play", &info.play, FORMAT, ALIAS }, 113 { "play.rate", &info.play.sample_rate, UINT, 0 }, 114 { "play.sample_rate", &info.play.sample_rate, UINT, ALIAS }, 115 { "play.channels", &info.play.channels, UINT, 0 }, 116 { "play.precision", &info.play.precision, UINT, 0 }, 117 { "play.encoding", &info.play.encoding, ENC, 0 }, 118 { "play.gain", &info.play.gain, UINT, 0 }, 119 { "play.balance", &info.play.balance, UCHAR, 0 }, 120 { "play.port", &info.play.port, XINT, 0 }, 121 { "play.avail_ports", &info.play.avail_ports, XINT, 0 }, 122 { "play.seek", &info.play.seek, UINT, READONLY }, 123 { "play.samples", &info.play.samples, UINT, READONLY }, 124 { "play.eof", &info.play.eof, UINT, READONLY }, 125 { "play.pause", &info.play.pause, UCHAR, 0 }, 126 { "play.error", &info.play.error, UCHAR, READONLY }, 127 { "play.waiting", &info.play.waiting, UCHAR, READONLY }, 128 { "play.open", &info.play.open, UCHAR, READONLY }, 129 { "play.active", &info.play.active, UCHAR, READONLY }, 130 { "play.buffer_size", &info.play.buffer_size, UINT, 0 }, 131 { "record", &info.record, FORMAT, ALIAS }, 132 { "record.rate", &info.record.sample_rate,UINT, 0 }, 133 { "record.sample_rate", &info.record.sample_rate,UINT, ALIAS }, 134 { "record.channels", &info.record.channels, UINT, 0 }, 135 { "record.precision", &info.record.precision, UINT, 0 }, 136 { "record.encoding", &info.record.encoding, ENC, 0 }, 137 { "record.gain", &info.record.gain, UINT, 0 }, 138 { "record.balance", &info.record.balance, UCHAR, 0 }, 139 { "record.port", &info.record.port, XINT, 0 }, 140 { "record.avail_ports", &info.record.avail_ports,XINT, 0 }, 141 { "record.seek", &info.record.seek, UINT, READONLY }, 142 { "record.samples", &info.record.samples, UINT, READONLY }, 143 { "record.eof", &info.record.eof, UINT, READONLY }, 144 { "record.pause", &info.record.pause, UCHAR, 0 }, 145 { "record.error", &info.record.error, UCHAR, READONLY }, 146 { "record.waiting", &info.record.waiting, UCHAR, READONLY }, 147 { "record.open", &info.record.open, UCHAR, READONLY }, 148 { "record.active", &info.record.active, UCHAR, READONLY }, 149 { "record.buffer_size", &info.record.buffer_size,UINT, 0 }, 150 { "record.errors", &rerror, INT, READONLY }, 151 { 0 } 152 }; 153 154 static struct { 155 char *name; 156 u_int prop; 157 } props[] = { 158 { "full_duplex", AUDIO_PROP_FULLDUPLEX }, 159 { "mmap", AUDIO_PROP_MMAP }, 160 { "independent", AUDIO_PROP_INDEPENDENT }, 161 { 0 } 162 }; 163 164 struct field * 165 findfield(name) 166 char *name; 167 { 168 int i; 169 for (i = 0; fields[i].name; i++) 170 if (strcmp(fields[i].name, name) == 0) 171 return &fields[i]; 172 return 0; 173 } 174 175 void 176 prfield(p, sep) 177 struct field *p; 178 char *sep; 179 { 180 u_int v; 181 char *cm, *encstr; 182 int i; 183 184 if (sep) 185 fprintf(out, "%s%s", p->name, sep); 186 switch(p->format) { 187 case STRING: 188 fprintf(out, "%s", (char*)p->valp); 189 break; 190 case INT: 191 fprintf(out, "%d", *(int*)p->valp); 192 break; 193 case UINT: 194 fprintf(out, "%u", *(u_int*)p->valp); 195 break; 196 case XINT: 197 fprintf(out, "0x%x", *(u_int*)p->valp); 198 break; 199 case UCHAR: 200 fprintf(out, "%u", *(u_char*)p->valp); 201 break; 202 case ULONG: 203 fprintf(out, "%lu", *(u_long*)p->valp); 204 break; 205 case P_R: 206 v = *(u_int*)p->valp; 207 cm = ""; 208 if (v & AUMODE_PLAY) { 209 if (v & AUMODE_PLAY_ALL) 210 fprintf(out, "play"); 211 else 212 fprintf(out, "playsync"); 213 cm = ","; 214 } 215 if (v & AUMODE_RECORD) 216 fprintf(out, "%srecord", cm); 217 break; 218 case ENC: 219 v = *(u_int*)p->valp; 220 encstr = audio_enc_from_val(v); 221 if (encstr) 222 fprintf(out, "%s", encstr); 223 else 224 fprintf(out, "%u", v); 225 break; 226 case PROPS: 227 v = *(u_int*)p->valp; 228 for (cm = "", i = 0; props[i].name; i++) { 229 if (v & props[i].prop) { 230 fprintf(out, "%s%s", cm, props[i].name); 231 cm = ","; 232 } 233 } 234 break; 235 case FORMAT: 236 prfield(p + 1, 0); 237 fprintf(out, ","); 238 prfield(p + 3, 0); 239 fprintf(out, ","); 240 prfield(p + 4, 0); 241 fprintf(out, ","); 242 prfield(p + 5, 0); 243 break; 244 default: 245 errx(1, "Invalid print format."); 246 } 247 } 248 249 void 250 rdfield(p, q) 251 struct field *p; 252 char *q; 253 { 254 int enc; 255 u_int u; 256 char *s; 257 258 switch(p->format) { 259 case UINT: 260 if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) 261 errx(1, "Bad number: %s", q); 262 break; 263 case UCHAR: 264 if (sscanf(q, "%u", &u) != 1) 265 errx(1, "Bad number: %s", q); 266 else 267 *(u_char *)p->valp = u; 268 break; 269 case XINT: 270 if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 && 271 sscanf(q, "%x", (unsigned int *)p->valp) != 1) 272 errx(1, "Bad number: %s", q); 273 break; 274 case ENC: 275 enc = audio_enc_to_val(q); 276 if (enc >= 0) 277 *(u_int*)p->valp = enc; 278 else 279 errx(1, "Unknown encoding: %s", q); 280 break; 281 case FORMAT: 282 s = strsep(&q, ","); 283 if (s) 284 rdfield(p + 1, s); 285 s = strsep(&q, ","); 286 if (s) 287 rdfield(p + 3, s); 288 s = strsep(&q, ","); 289 if (s) 290 rdfield(p + 4, s); 291 s = strsep(&q, ","); 292 if (s) 293 rdfield(p + 5, s); 294 if (!s || q) 295 errx(1, "Bad format"); 296 break; 297 default: 298 errx(1, "Invalid read format."); 299 } 300 p->flags |= SET; 301 } 302 303 void 304 getinfo(fd) 305 int fd; 306 { 307 int pos, i; 308 309 if (ioctl(fd, AUDIO_GETDEV, &adev) < 0) 310 err(1, "AUDIO_GETDEV"); 311 for (pos = 0, i = 0; ; i++) { 312 audio_encoding_t enc; 313 enc.index = i; 314 if (ioctl(fd, AUDIO_GETENC, &enc) < 0) 315 break; 316 if (pos >= sizeof(encbuf)-1) 317 break; 318 if (pos) 319 encbuf[pos++] = ','; 320 if (pos >= sizeof(encbuf)-1) 321 break; 322 pos += snprintf(encbuf+pos, sizeof(encbuf)-pos, "%s:%d%s", 323 enc.name, enc.precision, 324 enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : ""); 325 } 326 if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0) 327 err(1, "AUDIO_GETFD"); 328 if (ioctl(fd, AUDIO_GETPROPS, &properties) < 0) 329 err(1, "AUDIO_GETPROPS"); 330 if (ioctl(fd, AUDIO_RERROR, &rerror) < 0) 331 err(1, "AUDIO_RERROR"); 332 if (ioctl(fd, AUDIO_GETINFO, &info) < 0) 333 err(1, "AUDIO_GETINFO"); 334 } 335 336 void 337 usage() 338 { 339 340 fprintf(stderr, "Usage: %s [-f file] [-n] name ...\n", prog); 341 fprintf(stderr, "Usage: %s [-f file] [-n] -w name=value ...\n", prog); 342 fprintf(stderr, "Usage: %s [-f file] [-n] -a\n", prog); 343 exit(1); 344 } 345 346 int 347 main(argc, argv) 348 int argc; 349 char **argv; 350 { 351 int fd, i, ch; 352 int aflag = 0, wflag = 0; 353 struct stat dstat, ostat; 354 const char *file; 355 char *sep = "="; 356 extern char *__progname; 357 358 file = getenv("AUDIOCTLDEVICE"); 359 if (file == 0) 360 file = _PATH_AUDIOCTL; 361 362 prog = __progname; 363 364 while ((ch = getopt(argc, argv, "af:nw")) != -1) { 365 switch(ch) { 366 case 'a': 367 aflag++; 368 break; 369 case 'w': 370 wflag++; 371 break; 372 case 'n': 373 sep = 0; 374 break; 375 case 'f': 376 file = optarg; 377 break; 378 case '?': 379 default: 380 usage(); 381 } 382 } 383 argc -= optind; 384 argv += optind; 385 386 fd = open(file, O_WRONLY); 387 if (fd < 0) 388 fd = open(file, O_RDONLY); 389 #ifdef _PATH_OAUDIOCTL 390 /* Allow the non-unit device to be used. */ 391 if (fd < 0 && file == _PATH_AUDIOCTL) { 392 file = _PATH_OAUDIOCTL; 393 fd = open(file, O_WRONLY); 394 if (fd < 0) 395 fd = open(file, O_RDONLY); 396 } 397 #endif 398 if (fd < 0) 399 err(1, "%s", file); 400 401 /* Check if stdout is the same device as the audio device. */ 402 if (fstat(fd, &dstat) < 0) 403 err(1, "fstat audioctl"); 404 if (fstat(STDOUT_FILENO, &ostat) < 0) 405 err(1, "fstat stdout"); 406 if (S_ISCHR(dstat.st_mode) && S_ISCHR(ostat.st_mode) && 407 major(dstat.st_dev) == major(ostat.st_dev) && 408 minor(dstat.st_dev) == minor(ostat.st_dev)) 409 /* We can't write to stdout so use stderr */ 410 out = stderr; 411 412 if (!wflag) 413 getinfo(fd); 414 415 if (argc == 0 && aflag && !wflag) { 416 for (i = 0; fields[i].name; i++) { 417 if (!(fields[i].flags & ALIAS)) { 418 prfield(&fields[i], sep); 419 fprintf(out, "\n"); 420 } 421 } 422 } else if (argc > 0 && !aflag) { 423 if (wflag) { 424 audioctl_write(fd, argc, argv); 425 if (sep) { 426 getinfo(fd); 427 for (i = 0; fields[i].name; i++) { 428 if (fields[i].flags & SET) { 429 fprintf(out, "%s: -> ", fields[i].name); 430 prfield(&fields[i], 0); 431 fprintf(out, "\n"); 432 } 433 } 434 } 435 } else { 436 struct field *p; 437 while (argc--) { 438 p = findfield(*argv); 439 if (p == 0) { 440 if (strchr(*argv, '=')) 441 warnx("field %s does not exist (use -w to set a variable)", *argv); 442 else 443 warnx("field %s does not exist", *argv); 444 } else { 445 prfield(p, sep); 446 fprintf(out, "\n"); 447 } 448 argv++; 449 } 450 } 451 } else 452 usage(); 453 exit(0); 454 } 455 456 void 457 audioctl_write(fd, argc, argv) 458 int fd; 459 int argc; 460 char *argv[]; 461 { 462 struct field *p; 463 464 AUDIO_INITINFO(&info); 465 while (argc--) { 466 char *q; 467 468 q = strchr(*argv, '='); 469 if (q) { 470 *q++ = 0; 471 p = findfield(*argv); 472 if (p == 0) 473 warnx("field `%s' does not exist", *argv); 474 else { 475 if (p->flags & READONLY) 476 warnx("`%s' is read only", *argv); 477 else { 478 rdfield(p, q); 479 if (p->valp == &fullduplex) 480 if (ioctl(fd, AUDIO_SETFD, &fullduplex) < 0) 481 err(1, "set failed"); 482 } 483 } 484 } else 485 warnx("No `=' in %s", *argv); 486 argv++; 487 } 488 if (ioctl(fd, AUDIO_SETINFO, &info) < 0) 489 err(1, "set failed"); 490 } 491
Indexes created Fri Sep 26 20:09:58 GMT 2025