ctl.c revision 1.41.2.1
1 /* $NetBSD: ctl.c,v 1.41.2.1 2017/04/21 16:54:14 bouyer 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 33 #ifndef lint 34 __RCSID("$NetBSD: ctl.c,v 1.41.2.1 2017/04/21 16:54:14 bouyer Exp $"); 35 #endif 36 37 38 #include <sys/types.h> 39 #include <sys/stat.h> 40 #include <sys/ioctl.h> 41 #include <sys/audioio.h> 42 43 #include <err.h> 44 #include <fcntl.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 50 #include <paths.h> 51 52 #include "libaudio.h" 53 54 static struct field *findfield(const char *name); 55 static void prfield(const struct field *p, const char *sep); 56 static void rdfield(struct field *p, char *q); 57 static void getinfo(int fd); 58 static void audioctl_write(int, int, char *[]); 59 __dead static void usage(void); 60 61 static audio_device_t adev; 62 63 static audio_info_t info; 64 65 static char encbuf[1000]; 66 67 static int properties, fullduplex, rerror; 68 69 int channel; 70 int verbose; 71 72 static struct field { 73 const char *name; 74 void *valp; 75 int format; 76 #define STRING 1 77 #define INT 2 78 #define UINT 3 79 #define P_R 4 80 #define ULONG 5 /* XXX obsolete now */ 81 #define UCHAR 6 82 #define ENC 7 83 #define PROPS 8 84 #define XINT 9 85 #define FORMAT 10 86 char flags; 87 #define READONLY 1 88 #define ALIAS 2 89 #define SET 4 90 } fields[] = { 91 { "name", &adev.name, STRING, READONLY }, 92 { "version", &adev.version, STRING, READONLY }, 93 { "config", &adev.config, STRING, READONLY }, 94 { "encodings", encbuf, STRING, READONLY }, 95 { "properties", &properties, PROPS, READONLY }, 96 { "full_duplex", &fullduplex, UINT, 0 }, 97 { "fullduplex", &fullduplex, UINT, 0 }, 98 { "blocksize", &info.blocksize, UINT, 0 }, 99 { "hiwat", &info.hiwat, UINT, 0 }, 100 { "lowat", &info.lowat, UINT, 0 }, 101 { "monitor_gain", &info.monitor_gain, UINT, 0 }, 102 { "mode", &info.mode, P_R, READONLY }, 103 { "play", &info.play, FORMAT, ALIAS }, 104 { "play.rate", &info.play.sample_rate, UINT, 0 }, 105 { "play.sample_rate", &info.play.sample_rate, UINT, ALIAS }, 106 { "play.channels", &info.play.channels, UINT, 0 }, 107 { "play.precision", &info.play.precision, UINT, 0 }, 108 { "play.encoding", &info.play.encoding, ENC, 0 }, 109 { "play.gain", &info.play.gain, UINT, 0 }, 110 { "play.balance", &info.play.balance, UCHAR, 0 }, 111 { "play.port", &info.play.port, XINT, 0 }, 112 { "play.avail_ports", &info.play.avail_ports, XINT, 0 }, 113 { "play.seek", &info.play.seek, UINT, READONLY }, 114 { "play.samples", &info.play.samples, UINT, READONLY }, 115 { "play.eof", &info.play.eof, UINT, READONLY }, 116 { "play.pause", &info.play.pause, UCHAR, 0 }, 117 { "play.error", &info.play.error, UCHAR, READONLY }, 118 { "play.waiting", &info.play.waiting, UCHAR, READONLY }, 119 { "play.open", &info.play.open, UCHAR, READONLY }, 120 { "play.active", &info.play.active, UCHAR, READONLY }, 121 { "play.buffer_size", &info.play.buffer_size, UINT, 0 }, 122 { "record", &info.record, FORMAT, ALIAS }, 123 { "record.rate", &info.record.sample_rate,UINT, 0 }, 124 { "record.sample_rate", &info.record.sample_rate,UINT, ALIAS }, 125 { "record.channels", &info.record.channels, UINT, 0 }, 126 { "record.precision", &info.record.precision, UINT, 0 }, 127 { "record.encoding", &info.record.encoding, ENC, 0 }, 128 { "record.gain", &info.record.gain, UINT, 0 }, 129 { "record.balance", &info.record.balance, UCHAR, 0 }, 130 { "record.port", &info.record.port, XINT, 0 }, 131 { "record.avail_ports", &info.record.avail_ports,XINT, 0 }, 132 { "record.seek", &info.record.seek, UINT, READONLY }, 133 { "record.samples", &info.record.samples, UINT, READONLY }, 134 { "record.eof", &info.record.eof, UINT, READONLY }, 135 { "record.pause", &info.record.pause, UCHAR, 0 }, 136 { "record.error", &info.record.error, UCHAR, READONLY }, 137 { "record.waiting", &info.record.waiting, UCHAR, READONLY }, 138 { "record.open", &info.record.open, UCHAR, READONLY }, 139 { "record.active", &info.record.active, UCHAR, READONLY }, 140 { "record.buffer_size", &info.record.buffer_size,UINT, 0 }, 141 { "record.errors", &rerror, INT, READONLY }, 142 { .name = NULL }, 143 }; 144 145 static const struct { 146 const char *name; 147 u_int prop; 148 } props[] = { 149 { "full_duplex", AUDIO_PROP_FULLDUPLEX }, 150 { "mmap", AUDIO_PROP_MMAP }, 151 { "independent", AUDIO_PROP_INDEPENDENT }, 152 { .name = NULL }, 153 }; 154 155 static struct field * 156 findfield(const char *name) 157 { 158 int i; 159 for (i = 0; fields[i].name; i++) 160 if (strcmp(fields[i].name, name) == 0) 161 return &fields[i]; 162 return 0; 163 } 164 165 static void 166 prfield(const struct field *p, const char *sep) 167 { 168 u_int v; 169 const char *cm, *encstr; 170 int i; 171 172 if (sep) 173 printf("%s%s", p->name, sep); 174 switch(p->format) { 175 case STRING: 176 printf("%s", (const char*)p->valp); 177 break; 178 case INT: 179 printf("%d", *(const int*)p->valp); 180 break; 181 case UINT: 182 printf("%u", *(const u_int*)p->valp); 183 break; 184 case XINT: 185 printf("0x%x", *(const u_int*)p->valp); 186 break; 187 case UCHAR: 188 printf("%u", *(const u_char*)p->valp); 189 break; 190 case ULONG: 191 printf("%lu", *(const u_long*)p->valp); 192 break; 193 case P_R: 194 v = *(const u_int*)p->valp; 195 cm = ""; 196 if (v & AUMODE_PLAY) { 197 if (v & AUMODE_PLAY_ALL) 198 printf("play"); 199 else 200 printf("playsync"); 201 cm = ","; 202 } 203 if (v & AUMODE_RECORD) 204 printf("%srecord", cm); 205 break; 206 case ENC: 207 v = *(u_int*)p->valp; 208 encstr = audio_enc_from_val(v); 209 if (encstr) 210 printf("%s", encstr); 211 else 212 printf("%u", v); 213 break; 214 case PROPS: 215 v = *(u_int*)p->valp; 216 for (cm = "", i = 0; props[i].name; i++) { 217 if (v & props[i].prop) { 218 printf("%s%s", cm, props[i].name); 219 cm = ","; 220 } 221 } 222 break; 223 case FORMAT: 224 prfield(p + 1, 0); 225 printf(","); 226 prfield(p + 3, 0); 227 printf(","); 228 prfield(p + 4, 0); 229 printf(","); 230 prfield(p + 5, 0); 231 break; 232 default: 233 errx(1, "Invalid print format."); 234 } 235 } 236 237 static void 238 rdfield(struct field *p, char *q) 239 { 240 int enc; 241 u_int u; 242 char *s; 243 244 switch(p->format) { 245 case UINT: 246 if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) 247 errx(1, "Bad number: %s", q); 248 break; 249 case UCHAR: 250 if (sscanf(q, "%u", &u) != 1) 251 errx(1, "Bad number: %s", q); 252 else 253 *(u_char *)p->valp = u; 254 break; 255 case XINT: 256 if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 && 257 sscanf(q, "%x", (unsigned int *)p->valp) != 1) 258 errx(1, "Bad number: %s", q); 259 break; 260 case ENC: 261 enc = audio_enc_to_val(q); 262 if (enc >= 0) 263 *(u_int*)p->valp = enc; 264 else 265 errx(1, "Unknown encoding: %s", q); 266 break; 267 case FORMAT: 268 s = strsep(&q, ","); 269 if (s) 270 rdfield(p + 1, s); 271 s = strsep(&q, ","); 272 if (s) 273 rdfield(p + 3, s); 274 s = strsep(&q, ","); 275 if (s) 276 rdfield(p + 4, s); 277 s = strsep(&q, ","); 278 if (s) 279 rdfield(p + 5, s); 280 if (!s || q) 281 errx(1, "Bad format"); 282 break; 283 default: 284 errx(1, "Invalid read format."); 285 } 286 p->flags |= SET; 287 } 288 289 static void 290 getinfo(int fd) 291 { 292 int pos, i; 293 294 if (channel >= 0 && ioctl(fd, AUDIO_SETCHAN, &channel) < 0) 295 err(1, "AUDIO_SETCHAN"); 296 297 if (ioctl(fd, AUDIO_GETDEV, &adev) < 0) 298 err(1, "AUDIO_GETDEV"); 299 for (pos = 0, i = 0; ; i++) { 300 audio_encoding_t enc; 301 enc.index = i; 302 if (ioctl(fd, AUDIO_GETENC, &enc) < 0) 303 break; 304 if (pos >= (int)sizeof(encbuf)-1) 305 break; 306 if (pos) 307 encbuf[pos++] = ','; 308 if (pos >= (int)sizeof(encbuf)-1) 309 break; 310 pos += snprintf(encbuf+pos, sizeof(encbuf)-pos, "%s:%d%s", 311 enc.name, enc.precision, 312 enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : ""); 313 } 314 if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0) 315 err(1, "AUDIO_GETFD"); 316 if (ioctl(fd, AUDIO_GETPROPS, &properties) < 0) 317 err(1, "AUDIO_GETPROPS"); 318 if (ioctl(fd, AUDIO_RERROR, &rerror) < 0) 319 err(1, "AUDIO_RERROR"); 320 if (ioctl(fd, AUDIO_GETINFO, &info) < 0) 321 err(1, "AUDIO_GETINFO"); 322 } 323 324 static void 325 usage(void) 326 { 327 const char *prog = getprogname(); 328 329 fprintf(stderr, "Usage: %s [-d file] [-p] channel " 330 "[-n] name ...\n", prog); 331 fprintf(stderr, "Usage: %s [-d file] [-p] channel [-n] " 332 "-w name=value ...\n", prog); 333 fprintf(stderr, "Usage: %s [-d file] [-p] channel [-n] -a\n", prog); 334 exit(1); 335 } 336 337 int 338 main(int argc, char *argv[]) 339 { 340 int fd, i, ch; 341 int aflag = 0, wflag = 0; 342 const char *deffile = _PATH_AUDIOCTL; 343 const char *file; 344 const char *sep = "="; 345 346 channel = -1; 347 file = getenv("AUDIOCTLDEVICE"); 348 if (file == NULL) 349 file = deffile; 350 351 while ((ch = getopt(argc, argv, "ad:f:np:w")) != -1) { 352 switch(ch) { 353 case 'a': 354 aflag++; 355 break; 356 case 'w': 357 wflag++; 358 break; 359 case 'n': 360 sep = 0; 361 break; 362 case 'p': 363 channel = atoi(optarg); 364 break; 365 case 'f': /* compatibility */ 366 case 'd': 367 file = optarg; 368 break; 369 case '?': 370 default: 371 usage(); 372 } 373 } 374 argc -= optind; 375 argv += optind; 376 377 fd = open(file, O_WRONLY); 378 if (fd < 0) 379 fd = open(file, O_RDONLY); 380 if (fd < 0 && file == deffile) { 381 file = _PATH_AUDIOCTL0; 382 fd = open(file, O_WRONLY); 383 if (fd < 0) 384 fd = open(file, O_RDONLY); 385 } 386 387 if (fd < 0) 388 err(1, "%s", file); 389 390 if (!wflag) 391 getinfo(fd); 392 393 if (argc == 0 && aflag && !wflag) { 394 for (i = 0; fields[i].name; i++) { 395 if (!(fields[i].flags & ALIAS)) { 396 prfield(&fields[i], sep); 397 printf("\n"); 398 } 399 } 400 } else if (argc > 0 && !aflag) { 401 if (wflag) { 402 audioctl_write(fd, argc, argv); 403 if (sep) { 404 getinfo(fd); 405 for (i = 0; fields[i].name; i++) { 406 if (fields[i].flags & SET) { 407 printf("%s: -> ", 408 fields[i].name); 409 prfield(&fields[i], 0); 410 printf("\n"); 411 } 412 } 413 } 414 } else { 415 struct field *p; 416 while (argc--) { 417 p = findfield(*argv); 418 if (p == 0) { 419 if (strchr(*argv, '=')) 420 warnx("field %s does not exist " 421 "(use -w to set a " 422 "variable)", *argv); 423 else 424 warnx("field %s does not exist", 425 *argv); 426 } else { 427 prfield(p, sep); 428 printf("\n"); 429 } 430 argv++; 431 } 432 } 433 } else 434 usage(); 435 exit(0); 436 } 437 438 static void 439 audioctl_write(int fd, int argc, char *argv[]) 440 { 441 struct field *p; 442 443 if (channel >= 0 && ioctl(fd, AUDIO_SETCHAN, &channel) < 0) 444 err(1, "AUDIO_SETCHAN"); 445 446 AUDIO_INITINFO(&info); 447 while (argc--) { 448 char *q; 449 450 q = strchr(*argv, '='); 451 if (q) { 452 *q++ = 0; 453 p = findfield(*argv); 454 if (p == 0) 455 warnx("field `%s' does not exist", *argv); 456 else { 457 if (p->flags & READONLY) 458 warnx("`%s' is read only", *argv); 459 else { 460 rdfield(p, q); 461 if (p->valp == &fullduplex) 462 if (ioctl(fd, AUDIO_SETFD, 463 &fullduplex) < 0) 464 err(1, "set failed"); 465 } 466 } 467 } else 468 warnx("No `=' in %s", *argv); 469 argv++; 470 } 471 if (ioctl(fd, AUDIO_SETINFO, &info) < 0) 472 err(1, "set failed"); 473 } 474
Indexes created Sun Oct 19 19:09:49 GMT 2025