1 /* $NetBSD: ctl.c,v 1.44 2019/05/08 14:44:42 isaki 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 1.44 2019/05/08 14:44:42 isaki 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 verbose; 70 71 static struct field { 72 const char *name; 73 void *valp; 74 int format; 75 #define STRING 1 76 #define INT 2 77 #define UINT 3 78 #define P_R 4 79 #define ULONG 5 /* XXX obsolete now */ 80 #define UCHAR 6 81 #define ENC 7 82 #define PROPS 8 83 #define XINT 9 84 #define FORMAT 10 85 char flags; 86 #define READONLY 1 87 #define ALIAS 2 88 #define SET 4 89 } fields[] = { 90 { "name", &adev.name, STRING, READONLY }, 91 { "version", &adev.version, STRING, READONLY }, 92 { "config", &adev.config, STRING, READONLY }, 93 { "encodings", encbuf, STRING, READONLY }, 94 { "properties", &properties, PROPS, READONLY }, 95 { "full_duplex", &fullduplex, UINT, 0 }, 96 { "fullduplex", &fullduplex, UINT, 0 }, 97 { "blocksize", &info.blocksize, UINT, 0 }, 98 { "hiwat", &info.hiwat, UINT, 0 }, 99 { "lowat", &info.lowat, UINT, 0 }, 100 { "monitor_gain", &info.monitor_gain, UINT, 0 }, 101 { "mode", &info.mode, P_R, READONLY }, 102 { "play", &info.play, FORMAT, ALIAS }, 103 { "play.rate", &info.play.sample_rate, UINT, 0 }, 104 { "play.sample_rate", &info.play.sample_rate, UINT, ALIAS }, 105 { "play.channels", &info.play.channels, UINT, 0 }, 106 { "play.precision", &info.play.precision, UINT, 0 }, 107 { "play.encoding", &info.play.encoding, ENC, 0 }, 108 { "play.gain", &info.play.gain, UINT, 0 }, 109 { "play.balance", &info.play.balance, UCHAR, 0 }, 110 { "play.port", &info.play.port, XINT, 0 }, 111 { "play.avail_ports", &info.play.avail_ports, XINT, 0 }, 112 { "play.seek", &info.play.seek, UINT, READONLY }, 113 { "play.samples", &info.play.samples, UINT, READONLY }, 114 { "play.eof", &info.play.eof, UINT, READONLY }, 115 { "play.pause", &info.play.pause, UCHAR, 0 }, 116 { "play.error", &info.play.error, UCHAR, READONLY }, 117 { "play.waiting", &info.play.waiting, UCHAR, READONLY }, 118 { "play.open", &info.play.open, UCHAR, READONLY }, 119 { "play.active", &info.play.active, UCHAR, READONLY }, 120 { "play.buffer_size", &info.play.buffer_size, UINT, 0 }, 121 { "record", &info.record, FORMAT, ALIAS }, 122 { "record.rate", &info.record.sample_rate,UINT, 0 }, 123 { "record.sample_rate", &info.record.sample_rate,UINT, ALIAS }, 124 { "record.channels", &info.record.channels, UINT, 0 }, 125 { "record.precision", &info.record.precision, UINT, 0 }, 126 { "record.encoding", &info.record.encoding, ENC, 0 }, 127 { "record.gain", &info.record.gain, UINT, 0 }, 128 { "record.balance", &info.record.balance, UCHAR, 0 }, 129 { "record.port", &info.record.port, XINT, 0 }, 130 { "record.avail_ports", &info.record.avail_ports,XINT, 0 }, 131 { "record.seek", &info.record.seek, UINT, READONLY }, 132 { "record.samples", &info.record.samples, UINT, READONLY }, 133 { "record.eof", &info.record.eof, UINT, READONLY }, 134 { "record.pause", &info.record.pause, UCHAR, 0 }, 135 { "record.error", &info.record.error, UCHAR, READONLY }, 136 { "record.waiting", &info.record.waiting, UCHAR, READONLY }, 137 { "record.open", &info.record.open, UCHAR, READONLY }, 138 { "record.active", &info.record.active, UCHAR, READONLY }, 139 { "record.buffer_size", &info.record.buffer_size,UINT, 0 }, 140 { "record.errors", &rerror, INT, READONLY }, 141 { .name = NULL }, 142 }; 143 144 static const struct { 145 const char *name; 146 u_int prop; 147 } props[] = { 148 { "full_duplex", AUDIO_PROP_FULLDUPLEX }, 149 { "mmap", AUDIO_PROP_MMAP }, 150 { "independent", AUDIO_PROP_INDEPENDENT }, 151 { .name = NULL }, 152 }; 153 154 static struct field * 155 findfield(const char *name) 156 { 157 int i; 158 for (i = 0; fields[i].name; i++) 159 if (strcmp(fields[i].name, name) == 0) 160 return &fields[i]; 161 return 0; 162 } 163 164 static void 165 prfield(const struct field *p, const char *sep) 166 { 167 u_int v; 168 const char *cm, *encstr; 169 int i; 170 171 if (sep) 172 printf("%s%s", p->name, sep); 173 switch(p->format) { 174 case STRING: 175 printf("%s", (const char*)p->valp); 176 break; 177 case INT: 178 printf("%d", *(const int*)p->valp); 179 break; 180 case UINT: 181 printf("%u", *(const u_int*)p->valp); 182 break; 183 case XINT: 184 printf("0x%x", *(const u_int*)p->valp); 185 break; 186 case UCHAR: 187 printf("%u", *(const u_char*)p->valp); 188 break; 189 case ULONG: 190 printf("%lu", *(const u_long*)p->valp); 191 break; 192 case P_R: 193 v = *(const u_int*)p->valp; 194 cm = ""; 195 if (v & AUMODE_PLAY) { 196 if (v & AUMODE_PLAY_ALL) 197 printf("play"); 198 else 199 printf("playsync"); 200 cm = ","; 201 } 202 if (v & AUMODE_RECORD) 203 printf("%srecord", cm); 204 break; 205 case ENC: 206 v = *(u_int*)p->valp; 207 encstr = audio_enc_from_val(v); 208 if (encstr) 209 printf("%s", encstr); 210 else 211 printf("%u", v); 212 break; 213 case PROPS: 214 v = *(u_int*)p->valp; 215 for (cm = "", i = 0; props[i].name; i++) { 216 if (v & props[i].prop) { 217 printf("%s%s", cm, props[i].name); 218 cm = ","; 219 } 220 } 221 break; 222 case FORMAT: 223 prfield(p + 1, 0); 224 printf(","); 225 prfield(p + 3, 0); 226 printf(","); 227 prfield(p + 4, 0); 228 printf(","); 229 prfield(p + 5, 0); 230 break; 231 default: 232 errx(1, "Invalid print format."); 233 } 234 } 235 236 static void 237 rdfield(struct field *p, char *q) 238 { 239 int enc; 240 u_int u; 241 char *s; 242 243 switch(p->format) { 244 case UINT: 245 if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) 246 errx(1, "Bad number: %s", q); 247 break; 248 case UCHAR: 249 if (sscanf(q, "%u", &u) != 1) 250 errx(1, "Bad number: %s", q); 251 else 252 *(u_char *)p->valp = u; 253 break; 254 case XINT: 255 if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 && 256 sscanf(q, "%x", (unsigned int *)p->valp) != 1) 257 errx(1, "Bad number: %s", q); 258 break; 259 case ENC: 260 enc = audio_enc_to_val(q); 261 if (enc >= 0) 262 *(u_int*)p->valp = enc; 263 else 264 errx(1, "Unknown encoding: %s", q); 265 break; 266 case FORMAT: 267 s = strsep(&q, ","); 268 if (s) 269 rdfield(p + 1, s); 270 s = strsep(&q, ","); 271 if (s) 272 rdfield(p + 3, s); 273 s = strsep(&q, ","); 274 if (s) 275 rdfield(p + 4, s); 276 s = strsep(&q, ","); 277 if (s) 278 rdfield(p + 5, s); 279 if (!s || q) 280 errx(1, "Bad format"); 281 break; 282 default: 283 errx(1, "Invalid read format."); 284 } 285 p->flags |= SET; 286 } 287 288 static void 289 getinfo(int fd) 290 { 291 int pos, i; 292 293 if (ioctl(fd, AUDIO_GETDEV, &adev) < 0) 294 err(1, "AUDIO_GETDEV"); 295 for (pos = 0, i = 0; ; i++) { 296 audio_encoding_t enc; 297 enc.index = i; 298 if (ioctl(fd, AUDIO_GETENC, &enc) < 0) 299 break; 300 if (pos >= (int)sizeof(encbuf)-1) 301 break; 302 if (pos) 303 encbuf[pos++] = ','; 304 if (pos >= (int)sizeof(encbuf)-1) 305 break; 306 pos += snprintf(encbuf+pos, sizeof(encbuf)-pos, "%s:%d%s", 307 enc.name, enc.precision, 308 enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : ""); 309 } 310 if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0) 311 err(1, "AUDIO_GETFD"); 312 if (ioctl(fd, AUDIO_GETPROPS, &properties) < 0) 313 err(1, "AUDIO_GETPROPS"); 314 if (ioctl(fd, AUDIO_RERROR, &rerror) < 0) 315 err(1, "AUDIO_RERROR"); 316 if (ioctl(fd, AUDIO_GETINFO, &info) < 0) 317 err(1, "AUDIO_GETINFO"); 318 } 319 320 static void 321 usage(void) 322 { 323 const char *prog = getprogname(); 324 325 fprintf(stderr, "Usage: %s [-d file] [-n] name ...\n", prog); 326 fprintf(stderr, "Usage: %s [-d file] [-n] -w name=value ...\n", prog); 327 fprintf(stderr, "Usage: %s [-d file] [-n] -a\n", prog); 328 exit(1); 329 } 330 331 int 332 main(int argc, char *argv[]) 333 { 334 int fd, i, ch; 335 int aflag = 0, wflag = 0; 336 const char *deffile = _PATH_AUDIOCTL; 337 const char *file; 338 const char *sep = "="; 339 340 file = getenv("AUDIOCTLDEVICE"); 341 if (file == NULL) 342 file = deffile; 343 344 while ((ch = getopt(argc, argv, "ad:f:nw")) != -1) { 345 switch(ch) { 346 case 'a': 347 aflag++; 348 break; 349 case 'w': 350 wflag++; 351 break; 352 case 'n': 353 sep = 0; 354 break; 355 case 'f': /* compatibility */ 356 case 'd': 357 file = optarg; 358 break; 359 case '?': 360 default: 361 usage(); 362 } 363 } 364 argc -= optind; 365 argv += optind; 366 367 fd = open(file, O_WRONLY); 368 if (fd < 0) 369 fd = open(file, O_RDONLY); 370 if (fd < 0 && file == deffile) { 371 file = _PATH_AUDIOCTL0; 372 fd = open(file, O_WRONLY); 373 if (fd < 0) 374 fd = open(file, O_RDONLY); 375 } 376 377 if (fd < 0) 378 err(1, "%s", file); 379 380 if (!wflag) 381 getinfo(fd); 382 383 if (argc == 0 && aflag && !wflag) { 384 for (i = 0; fields[i].name; i++) { 385 if (!(fields[i].flags & ALIAS)) { 386 prfield(&fields[i], sep); 387 printf("\n"); 388 } 389 } 390 } else if (argc > 0 && !aflag) { 391 if (wflag) { 392 audioctl_write(fd, argc, argv); 393 if (sep) { 394 getinfo(fd); 395 for (i = 0; fields[i].name; i++) { 396 if (fields[i].flags & SET) { 397 printf("%s: -> ", 398 fields[i].name); 399 prfield(&fields[i], 0); 400 printf("\n"); 401 } 402 } 403 } 404 } else { 405 struct field *p; 406 while (argc--) { 407 p = findfield(*argv); 408 if (p == 0) { 409 if (strchr(*argv, '=')) 410 warnx("field %s does not exist " 411 "(use -w to set a " 412 "variable)", *argv); 413 else 414 warnx("field %s does not exist", 415 *argv); 416 } else { 417 prfield(p, sep); 418 printf("\n"); 419 } 420 argv++; 421 } 422 } 423 } else 424 usage(); 425 exit(0); 426 } 427 428 static void 429 audioctl_write(int fd, int argc, char *argv[]) 430 { 431 struct field *p; 432 433 AUDIO_INITINFO(&info); 434 while (argc--) { 435 char *q; 436 437 q = strchr(*argv, '='); 438 if (q) { 439 *q++ = 0; 440 p = findfield(*argv); 441 if (p == 0) 442 warnx("field `%s' does not exist", *argv); 443 else { 444 if (p->flags & READONLY) 445 warnx("`%s' is read only", *argv); 446 else { 447 rdfield(p, q); 448 if (p->valp == &fullduplex) 449 if (ioctl(fd, AUDIO_SETFD, 450 &fullduplex) < 0) 451 err(1, "set failed"); 452 } 453 } 454 } else 455 warnx("No `=' in %s", *argv); 456 argv++; 457 } 458 if (ioctl(fd, AUDIO_SETINFO, &info) < 0) 459 err(1, "set failed"); 460 } 461
Indexes created Wed Sep 24 02:09:48 GMT 2025