1 /* $NetBSD: ctl.c,v 1.38 2009/04/11 10:43:09 lukem 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@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 1.38 2009/04/11 10:43:09 lukem 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 struct field *findfield (const char *name); 55 void prfield (struct field *p, const char *sep); 56 void rdfield (struct field *p, char *q); 57 void getinfo (int fd); 58 void audioctl_write (int, int, char *[]); 59 void usage (void); 60 int main (int argc, char **argv); 61 62 audio_device_t adev; 63 64 audio_info_t info; 65 66 char encbuf[1000]; 67 68 int properties, fullduplex, rerror; 69 70 struct field { 71 const char *name; 72 void *valp; 73 int format; 74 #define STRING 1 75 #define INT 2 76 #define UINT 3 77 #define P_R 4 78 #define ULONG 5 /* XXX obsolete now */ 79 #define UCHAR 6 80 #define ENC 7 81 #define PROPS 8 82 #define XINT 9 83 #define FORMAT 10 84 char flags; 85 #define READONLY 1 86 #define ALIAS 2 87 #define SET 4 88 } fields[] = { 89 { "name", &adev.name, STRING, READONLY }, 90 { "version", &adev.version, STRING, READONLY }, 91 { "config", &adev.config, STRING, READONLY }, 92 { "encodings", encbuf, STRING, READONLY }, 93 { "properties", &properties, PROPS, READONLY }, 94 { "full_duplex", &fullduplex, UINT, 0 }, 95 { "fullduplex", &fullduplex, UINT, 0 }, 96 { "blocksize", &info.blocksize, UINT, 0 }, 97 { "hiwat", &info.hiwat, UINT, 0 }, 98 { "lowat", &info.lowat, UINT, 0 }, 99 { "monitor_gain", &info.monitor_gain, UINT, 0 }, 100 { "mode", &info.mode, P_R, READONLY }, 101 { "play", &info.play, FORMAT, ALIAS }, 102 { "play.rate", &info.play.sample_rate, UINT, 0 }, 103 { "play.sample_rate", &info.play.sample_rate, UINT, ALIAS }, 104 { "play.channels", &info.play.channels, UINT, 0 }, 105 { "play.precision", &info.play.precision, UINT, 0 }, 106 { "play.encoding", &info.play.encoding, ENC, 0 }, 107 { "play.gain", &info.play.gain, UINT, 0 }, 108 { "play.balance", &info.play.balance, UCHAR, 0 }, 109 { "play.port", &info.play.port, XINT, 0 }, 110 { "play.avail_ports", &info.play.avail_ports, XINT, 0 }, 111 { "play.seek", &info.play.seek, UINT, READONLY }, 112 { "play.samples", &info.play.samples, UINT, READONLY }, 113 { "play.eof", &info.play.eof, UINT, READONLY }, 114 { "play.pause", &info.play.pause, UCHAR, 0 }, 115 { "play.error", &info.play.error, UCHAR, READONLY }, 116 { "play.waiting", &info.play.waiting, UCHAR, READONLY }, 117 { "play.open", &info.play.open, UCHAR, READONLY }, 118 { "play.active", &info.play.active, UCHAR, READONLY }, 119 { "play.buffer_size", &info.play.buffer_size, UINT, 0 }, 120 { "record", &info.record, FORMAT, ALIAS }, 121 { "record.rate", &info.record.sample_rate,UINT, 0 }, 122 { "record.sample_rate", &info.record.sample_rate,UINT, ALIAS }, 123 { "record.channels", &info.record.channels, UINT, 0 }, 124 { "record.precision", &info.record.precision, UINT, 0 }, 125 { "record.encoding", &info.record.encoding, ENC, 0 }, 126 { "record.gain", &info.record.gain, UINT, 0 }, 127 { "record.balance", &info.record.balance, UCHAR, 0 }, 128 { "record.port", &info.record.port, XINT, 0 }, 129 { "record.avail_ports", &info.record.avail_ports,XINT, 0 }, 130 { "record.seek", &info.record.seek, UINT, READONLY }, 131 { "record.samples", &info.record.samples, UINT, READONLY }, 132 { "record.eof", &info.record.eof, UINT, READONLY }, 133 { "record.pause", &info.record.pause, UCHAR, 0 }, 134 { "record.error", &info.record.error, UCHAR, READONLY }, 135 { "record.waiting", &info.record.waiting, UCHAR, READONLY }, 136 { "record.open", &info.record.open, UCHAR, READONLY }, 137 { "record.active", &info.record.active, UCHAR, READONLY }, 138 { "record.buffer_size", &info.record.buffer_size,UINT, 0 }, 139 { "record.errors", &rerror, INT, READONLY }, 140 { .name = NULL }, 141 }; 142 143 static struct { 144 const char *name; 145 u_int prop; 146 } props[] = { 147 { "full_duplex", AUDIO_PROP_FULLDUPLEX }, 148 { "mmap", AUDIO_PROP_MMAP }, 149 { "independent", AUDIO_PROP_INDEPENDENT }, 150 { .name = NULL }, 151 }; 152 153 struct field * 154 findfield(name) 155 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 void 165 prfield(p, sep) 166 struct field *p; 167 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", (char*)p->valp); 178 break; 179 case INT: 180 printf("%d", *(int*)p->valp); 181 break; 182 case UINT: 183 printf("%u", *(u_int*)p->valp); 184 break; 185 case XINT: 186 printf("0x%x", *(u_int*)p->valp); 187 break; 188 case UCHAR: 189 printf("%u", *(u_char*)p->valp); 190 break; 191 case ULONG: 192 printf("%lu", *(u_long*)p->valp); 193 break; 194 case P_R: 195 v = *(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 void 239 rdfield(p, q) 240 struct field *p; 241 char *q; 242 { 243 int enc; 244 u_int u; 245 char *s; 246 247 switch(p->format) { 248 case UINT: 249 if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) 250 errx(1, "Bad number: %s", q); 251 break; 252 case UCHAR: 253 if (sscanf(q, "%u", &u) != 1) 254 errx(1, "Bad number: %s", q); 255 else 256 *(u_char *)p->valp = u; 257 break; 258 case XINT: 259 if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 && 260 sscanf(q, "%x", (unsigned int *)p->valp) != 1) 261 errx(1, "Bad number: %s", q); 262 break; 263 case ENC: 264 enc = audio_enc_to_val(q); 265 if (enc >= 0) 266 *(u_int*)p->valp = enc; 267 else 268 errx(1, "Unknown encoding: %s", q); 269 break; 270 case FORMAT: 271 s = strsep(&q, ","); 272 if (s) 273 rdfield(p + 1, s); 274 s = strsep(&q, ","); 275 if (s) 276 rdfield(p + 3, s); 277 s = strsep(&q, ","); 278 if (s) 279 rdfield(p + 4, s); 280 s = strsep(&q, ","); 281 if (s) 282 rdfield(p + 5, s); 283 if (!s || q) 284 errx(1, "Bad format"); 285 break; 286 default: 287 errx(1, "Invalid read format."); 288 } 289 p->flags |= SET; 290 } 291 292 void 293 getinfo(fd) 294 int fd; 295 { 296 int pos, i; 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 void 326 usage() 327 { 328 const char *prog = getprogname(); 329 330 fprintf(stderr, "Usage: %s [-d file] [-n] name ...\n", prog); 331 fprintf(stderr, "Usage: %s [-d file] [-n] -w name=value ...\n", prog); 332 fprintf(stderr, "Usage: %s [-d file] [-n] -a\n", prog); 333 exit(1); 334 } 335 336 int 337 main(argc, argv) 338 int argc; 339 char **argv; 340 { 341 int fd, i, ch; 342 int aflag = 0, wflag = 0; 343 const char *deffile = _PATH_AUDIOCTL; 344 const char *file; 345 const char *sep = "="; 346 347 file = getenv("AUDIOCTLDEVICE"); 348 if (file == NULL) 349 file = deffile; 350 351 while ((ch = getopt(argc, argv, "ad:f:nw")) != -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 'f': /* compatibility */ 363 case 'd': 364 file = optarg; 365 break; 366 case '?': 367 default: 368 usage(); 369 } 370 } 371 argc -= optind; 372 argv += optind; 373 374 fd = open(file, O_WRONLY); 375 if (fd < 0) 376 fd = open(file, O_RDONLY); 377 if (fd < 0 && file == deffile) { 378 file = _PATH_AUDIOCTL0; 379 fd = open(file, O_WRONLY); 380 if (fd < 0) 381 fd = open(file, O_RDONLY); 382 } 383 384 if (fd < 0) 385 err(1, "%s", file); 386 387 if (!wflag) 388 getinfo(fd); 389 390 if (argc == 0 && aflag && !wflag) { 391 for (i = 0; fields[i].name; i++) { 392 if (!(fields[i].flags & ALIAS)) { 393 prfield(&fields[i], sep); 394 printf("\n"); 395 } 396 } 397 } else if (argc > 0 && !aflag) { 398 if (wflag) { 399 audioctl_write(fd, argc, argv); 400 if (sep) { 401 getinfo(fd); 402 for (i = 0; fields[i].name; i++) { 403 if (fields[i].flags & SET) { 404 printf("%s: -> ", fields[i].name); 405 prfield(&fields[i], 0); 406 printf("\n"); 407 } 408 } 409 } 410 } else { 411 struct field *p; 412 while (argc--) { 413 p = findfield(*argv); 414 if (p == 0) { 415 if (strchr(*argv, '=')) 416 warnx("field %s does not exist (use -w to set a variable)", *argv); 417 else 418 warnx("field %s does not exist", *argv); 419 } else { 420 prfield(p, sep); 421 printf("\n"); 422 } 423 argv++; 424 } 425 } 426 } else 427 usage(); 428 exit(0); 429 } 430 431 void 432 audioctl_write(fd, argc, argv) 433 int fd; 434 int argc; 435 char *argv[]; 436 { 437 struct field *p; 438 439 AUDIO_INITINFO(&info); 440 while (argc--) { 441 char *q; 442 443 q = strchr(*argv, '='); 444 if (q) { 445 *q++ = 0; 446 p = findfield(*argv); 447 if (p == 0) 448 warnx("field `%s' does not exist", *argv); 449 else { 450 if (p->flags & READONLY) 451 warnx("`%s' is read only", *argv); 452 else { 453 rdfield(p, q); 454 if (p->valp == &fullduplex) 455 if (ioctl(fd, AUDIO_SETFD, &fullduplex) < 0) 456 err(1, "set failed"); 457 } 458 } 459 } else 460 warnx("No `=' in %s", *argv); 461 argv++; 462 } 463 if (ioctl(fd, AUDIO_SETINFO, &info) < 0) 464 err(1, "set failed"); 465 } 466