ctl.c revision 1.40.8.1
1 /* $NetBSD: ctl.c,v 1.40.8.1 2017/01/07 08:56:57 pgoyette 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 1.40.8.1 2017/01/07 08:56:57 pgoyette 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 static struct audio_pid vchan_pid; 70 71 int verbose; 72 73 static struct field { 74 const char *name; 75 void *valp; 76 int format; 77 #define STRING 1 78 #define INT 2 79 #define UINT 3 80 #define P_R 4 81 #define ULONG 5 /* XXX obsolete now */ 82 #define UCHAR 6 83 #define ENC 7 84 #define PROPS 8 85 #define XINT 9 86 #define FORMAT 10 87 char flags; 88 #define READONLY 1 89 #define ALIAS 2 90 #define SET 4 91 } fields[] = { 92 { "name", &adev.name, STRING, READONLY }, 93 { "version", &adev.version, STRING, READONLY }, 94 { "config", &adev.config, STRING, READONLY }, 95 { "encodings", encbuf, STRING, READONLY }, 96 { "properties", &properties, PROPS, READONLY }, 97 { "full_duplex", &fullduplex, UINT, 0 }, 98 { "fullduplex", &fullduplex, UINT, 0 }, 99 { "blocksize", &info.blocksize, UINT, 0 }, 100 { "hiwat", &info.hiwat, UINT, 0 }, 101 { "lowat", &info.lowat, UINT, 0 }, 102 { "monitor_gain", &info.monitor_gain, UINT, 0 }, 103 { "mode", &info.mode, P_R, READONLY }, 104 { "play", &info.play, FORMAT, ALIAS }, 105 { "play.rate", &info.play.sample_rate, UINT, 0 }, 106 { "play.sample_rate", &info.play.sample_rate, UINT, ALIAS }, 107 { "play.channels", &info.play.channels, UINT, 0 }, 108 { "play.precision", &info.play.precision, UINT, 0 }, 109 { "play.encoding", &info.play.encoding, ENC, 0 }, 110 { "play.gain", &info.play.gain, UINT, 0 }, 111 { "play.balance", &info.play.balance, UCHAR, 0 }, 112 { "play.port", &info.play.port, XINT, 0 }, 113 { "play.avail_ports", &info.play.avail_ports, XINT, 0 }, 114 { "play.seek", &info.play.seek, UINT, READONLY }, 115 { "play.samples", &info.play.samples, UINT, READONLY }, 116 { "play.eof", &info.play.eof, UINT, READONLY }, 117 { "play.pause", &info.play.pause, UCHAR, 0 }, 118 { "play.error", &info.play.error, UCHAR, READONLY }, 119 { "play.waiting", &info.play.waiting, UCHAR, READONLY }, 120 { "play.open", &info.play.open, UCHAR, READONLY }, 121 { "play.active", &info.play.active, UCHAR, READONLY }, 122 { "play.buffer_size", &info.play.buffer_size, UINT, 0 }, 123 { "record", &info.record, FORMAT, ALIAS }, 124 { "record.rate", &info.record.sample_rate,UINT, 0 }, 125 { "record.sample_rate", &info.record.sample_rate,UINT, ALIAS }, 126 { "record.channels", &info.record.channels, UINT, 0 }, 127 { "record.precision", &info.record.precision, UINT, 0 }, 128 { "record.encoding", &info.record.encoding, ENC, 0 }, 129 { "record.gain", &info.record.gain, UINT, 0 }, 130 { "record.balance", &info.record.balance, UCHAR, 0 }, 131 { "record.port", &info.record.port, XINT, 0 }, 132 { "record.avail_ports", &info.record.avail_ports,XINT, 0 }, 133 { "record.seek", &info.record.seek, UINT, READONLY }, 134 { "record.samples", &info.record.samples, UINT, READONLY }, 135 { "record.eof", &info.record.eof, UINT, READONLY }, 136 { "record.pause", &info.record.pause, UCHAR, 0 }, 137 { "record.error", &info.record.error, UCHAR, READONLY }, 138 { "record.waiting", &info.record.waiting, UCHAR, READONLY }, 139 { "record.open", &info.record.open, UCHAR, READONLY }, 140 { "record.active", &info.record.active, UCHAR, READONLY }, 141 { "record.buffer_size", &info.record.buffer_size,UINT, 0 }, 142 { "record.errors", &rerror, INT, READONLY }, 143 { .name = NULL }, 144 }; 145 146 static const struct { 147 const char *name; 148 u_int prop; 149 } props[] = { 150 { "full_duplex", AUDIO_PROP_FULLDUPLEX }, 151 { "mmap", AUDIO_PROP_MMAP }, 152 { "independent", AUDIO_PROP_INDEPENDENT }, 153 { .name = NULL }, 154 }; 155 156 static struct field * 157 findfield(const char *name) 158 { 159 int i; 160 for (i = 0; fields[i].name; i++) 161 if (strcmp(fields[i].name, name) == 0) 162 return &fields[i]; 163 return 0; 164 } 165 166 static void 167 prfield(const struct field *p, const char *sep) 168 { 169 u_int v; 170 const char *cm, *encstr; 171 int i; 172 173 if (sep) 174 printf("%s%s", p->name, sep); 175 switch(p->format) { 176 case STRING: 177 printf("%s", (const char*)p->valp); 178 break; 179 case INT: 180 printf("%d", *(const int*)p->valp); 181 break; 182 case UINT: 183 printf("%u", *(const u_int*)p->valp); 184 break; 185 case XINT: 186 printf("0x%x", *(const u_int*)p->valp); 187 break; 188 case UCHAR: 189 printf("%u", *(const u_char*)p->valp); 190 break; 191 case ULONG: 192 printf("%lu", *(const u_long*)p->valp); 193 break; 194 case P_R: 195 v = *(const u_int*)p->valp; 196 cm = ""; 197 if (v & AUMODE_PLAY) { 198 if (v & AUMODE_PLAY_ALL) 199 printf("play"); 200 else 201 printf("playsync"); 202 cm = ","; 203 } 204 if (v & AUMODE_RECORD) 205 printf("%srecord", cm); 206 break; 207 case ENC: 208 v = *(u_int*)p->valp; 209 encstr = audio_enc_from_val(v); 210 if (encstr) 211 printf("%s", encstr); 212 else 213 printf("%u", v); 214 break; 215 case PROPS: 216 v = *(u_int*)p->valp; 217 for (cm = "", i = 0; props[i].name; i++) { 218 if (v & props[i].prop) { 219 printf("%s%s", cm, props[i].name); 220 cm = ","; 221 } 222 } 223 break; 224 case FORMAT: 225 prfield(p + 1, 0); 226 printf(","); 227 prfield(p + 3, 0); 228 printf(","); 229 prfield(p + 4, 0); 230 printf(","); 231 prfield(p + 5, 0); 232 break; 233 default: 234 errx(1, "Invalid print format."); 235 } 236 } 237 238 static void 239 rdfield(struct field *p, char *q) 240 { 241 int enc; 242 u_int u; 243 char *s; 244 245 switch(p->format) { 246 case UINT: 247 if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) 248 errx(1, "Bad number: %s", q); 249 break; 250 case UCHAR: 251 if (sscanf(q, "%u", &u) != 1) 252 errx(1, "Bad number: %s", q); 253 else 254 *(u_char *)p->valp = u; 255 break; 256 case XINT: 257 if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 && 258 sscanf(q, "%x", (unsigned int *)p->valp) != 1) 259 errx(1, "Bad number: %s", q); 260 break; 261 case ENC: 262 enc = audio_enc_to_val(q); 263 if (enc >= 0) 264 *(u_int*)p->valp = enc; 265 else 266 errx(1, "Unknown encoding: %s", q); 267 break; 268 case FORMAT: 269 s = strsep(&q, ","); 270 if (s) 271 rdfield(p + 1, s); 272 s = strsep(&q, ","); 273 if (s) 274 rdfield(p + 3, s); 275 s = strsep(&q, ","); 276 if (s) 277 rdfield(p + 4, s); 278 s = strsep(&q, ","); 279 if (s) 280 rdfield(p + 5, s); 281 if (!s || q) 282 errx(1, "Bad format"); 283 break; 284 default: 285 errx(1, "Invalid read format."); 286 } 287 p->flags |= SET; 288 } 289 290 static void 291 getinfo(int fd) 292 { 293 int pos, i; 294 295 if (vchan_pid.pid >= 0 && ioctl(fd, AUDIO_SETPROC, &vchan_pid) < 0) 296 err(1, "AUDIO_SETPROC"); 297 298 if (ioctl(fd, AUDIO_GETDEV, &adev) < 0) 299 err(1, "AUDIO_GETDEV"); 300 for (pos = 0, i = 0; ; i++) { 301 audio_encoding_t enc; 302 enc.index = i; 303 if (ioctl(fd, AUDIO_GETENC, &enc) < 0) 304 break; 305 if (pos >= (int)sizeof(encbuf)-1) 306 break; 307 if (pos) 308 encbuf[pos++] = ','; 309 if (pos >= (int)sizeof(encbuf)-1) 310 break; 311 pos += snprintf(encbuf+pos, sizeof(encbuf)-pos, "%s:%d%s", 312 enc.name, enc.precision, 313 enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : ""); 314 } 315 if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0) 316 err(1, "AUDIO_GETFD"); 317 if (ioctl(fd, AUDIO_GETPROPS, &properties) < 0) 318 err(1, "AUDIO_GETPROPS"); 319 if (ioctl(fd, AUDIO_RERROR, &rerror) < 0) 320 err(1, "AUDIO_RERROR"); 321 if (ioctl(fd, AUDIO_GETINFO, &info) < 0) 322 err(1, "AUDIO_GETINFO"); 323 } 324 325 static void 326 usage(void) 327 { 328 const char *prog = getprogname(); 329 330 fprintf(stderr, "Usage: %s [-d file] [-p] pid [-n] name ...\n", prog); 331 fprintf(stderr, "Usage: %s [-d file] [-p] pid [-n] -w name=value ...\n", prog); 332 fprintf(stderr, "Usage: %s [-d file] [-p] pid [-n] -a\n", prog); 333 exit(1); 334 } 335 336 int 337 main(int argc, char *argv[]) 338 { 339 int fd, i, ch; 340 int aflag = 0, wflag = 0; 341 const char *deffile = _PATH_AUDIOCTL; 342 const char *file; 343 const char *sep = "="; 344 345 vchan_pid.pid = -1; 346 file = getenv("AUDIOCTLDEVICE"); 347 if (file == NULL) 348 file = deffile; 349 350 while ((ch = getopt(argc, argv, "ad:f:np:w")) != -1) { 351 switch(ch) { 352 case 'a': 353 aflag++; 354 break; 355 case 'w': 356 wflag++; 357 break; 358 case 'n': 359 sep = 0; 360 break; 361 case 'p': 362 vchan_pid.pid = atoi(optarg); 363 break; 364 case 'f': /* compatibility */ 365 case 'd': 366 file = optarg; 367 break; 368 case '?': 369 default: 370 usage(); 371 } 372 } 373 argc -= optind; 374 argv += optind; 375 376 fd = open(file, O_WRONLY); 377 if (fd < 0) 378 fd = open(file, O_RDONLY); 379 if (fd < 0 && file == deffile) { 380 file = _PATH_AUDIOCTL0; 381 fd = open(file, O_WRONLY); 382 if (fd < 0) 383 fd = open(file, O_RDONLY); 384 } 385 386 if (fd < 0) 387 err(1, "%s", file); 388 389 if (!wflag) 390 getinfo(fd); 391 392 if (argc == 0 && aflag && !wflag) { 393 for (i = 0; fields[i].name; i++) { 394 if (!(fields[i].flags & ALIAS)) { 395 prfield(&fields[i], sep); 396 printf("\n"); 397 } 398 } 399 } else if (argc > 0 && !aflag) { 400 if (wflag) { 401 audioctl_write(fd, argc, argv); 402 if (sep) { 403 getinfo(fd); 404 for (i = 0; fields[i].name; i++) { 405 if (fields[i].flags & SET) { 406 printf("%s: -> ", fields[i].name); 407 prfield(&fields[i], 0); 408 printf("\n"); 409 } 410 } 411 } 412 } else { 413 struct field *p; 414 while (argc--) { 415 p = findfield(*argv); 416 if (p == 0) { 417 if (strchr(*argv, '=')) 418 warnx("field %s does not exist (use -w to set a variable)", *argv); 419 else 420 warnx("field %s does not exist", *argv); 421 } else { 422 prfield(p, sep); 423 printf("\n"); 424 } 425 argv++; 426 } 427 } 428 } else 429 usage(); 430 exit(0); 431 } 432 433 static void 434 audioctl_write(int fd, int argc, char *argv[]) 435 { 436 struct field *p; 437 438 if (vchan_pid.pid >= 0 && ioctl(fd, AUDIO_SETPROC, &vchan_pid) < 0) 439 err(1, "AUDIO_SETPROC"); 440 441 AUDIO_INITINFO(&info); 442 while (argc--) { 443 char *q; 444 445 q = strchr(*argv, '='); 446 if (q) { 447 *q++ = 0; 448 p = findfield(*argv); 449 if (p == 0) 450 warnx("field `%s' does not exist", *argv); 451 else { 452 if (p->flags & READONLY) 453 warnx("`%s' is read only", *argv); 454 else { 455 rdfield(p, q); 456 if (p->valp == &fullduplex) 457 if (ioctl(fd, AUDIO_SETFD, &fullduplex) < 0) 458 err(1, "set failed"); 459 } 460 } 461 } else 462 warnx("No `=' in %s", *argv); 463 argv++; 464 } 465 if (ioctl(fd, AUDIO_SETINFO, &info) < 0) 466 err(1, "set failed"); 467 } 468
Indexes created Mon Oct 20 01:09:56 GMT 2025