ctl.c revision 1.33
1 /* $NetBSD: ctl.c,v 1.33 2003/01/06 13:26:27 wiz 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 struct field *findfield (const char *name); 56 void prfield (struct field *p, const char *sep); 57 void rdfield (struct field *p, char *q); 58 void getinfo (int fd); 59 void audioctl_write (int, int, char *[]); 60 void usage (void); 61 int main (int argc, char **argv); 62 63 audio_device_t adev; 64 65 audio_info_t info; 66 67 char encbuf[1000]; 68 69 int properties, fullduplex, rerror; 70 71 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 { 0 } 142 }; 143 144 static 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 { 0 } 152 }; 153 154 struct field * 155 findfield(name) 156 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 void 166 prfield(p, sep) 167 struct field *p; 168 const char *sep; 169 { 170 u_int v; 171 const char *cm, *encstr; 172 int i; 173 174 if (sep) 175 printf("%s%s", p->name, sep); 176 switch(p->format) { 177 case STRING: 178 printf("%s", (char*)p->valp); 179 break; 180 case INT: 181 printf("%d", *(int*)p->valp); 182 break; 183 case UINT: 184 printf("%u", *(u_int*)p->valp); 185 break; 186 case XINT: 187 printf("0x%x", *(u_int*)p->valp); 188 break; 189 case UCHAR: 190 printf("%u", *(u_char*)p->valp); 191 break; 192 case ULONG: 193 printf("%lu", *(u_long*)p->valp); 194 break; 195 case P_R: 196 v = *(u_int*)p->valp; 197 cm = ""; 198 if (v & AUMODE_PLAY) { 199 if (v & AUMODE_PLAY_ALL) 200 printf("play"); 201 else 202 printf("playsync"); 203 cm = ","; 204 } 205 if (v & AUMODE_RECORD) 206 printf("%srecord", cm); 207 break; 208 case ENC: 209 v = *(u_int*)p->valp; 210 encstr = audio_enc_from_val(v); 211 if (encstr) 212 printf("%s", encstr); 213 else 214 printf("%u", v); 215 break; 216 case PROPS: 217 v = *(u_int*)p->valp; 218 for (cm = "", i = 0; props[i].name; i++) { 219 if (v & props[i].prop) { 220 printf("%s%s", cm, props[i].name); 221 cm = ","; 222 } 223 } 224 break; 225 case FORMAT: 226 prfield(p + 1, 0); 227 printf(","); 228 prfield(p + 3, 0); 229 printf(","); 230 prfield(p + 4, 0); 231 printf(","); 232 prfield(p + 5, 0); 233 break; 234 default: 235 errx(1, "Invalid print format."); 236 } 237 } 238 239 void 240 rdfield(p, q) 241 struct field *p; 242 char *q; 243 { 244 int enc; 245 u_int u; 246 char *s; 247 248 switch(p->format) { 249 case UINT: 250 if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) 251 errx(1, "Bad number: %s", q); 252 break; 253 case UCHAR: 254 if (sscanf(q, "%u", &u) != 1) 255 errx(1, "Bad number: %s", q); 256 else 257 *(u_char *)p->valp = u; 258 break; 259 case XINT: 260 if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 && 261 sscanf(q, "%x", (unsigned int *)p->valp) != 1) 262 errx(1, "Bad number: %s", q); 263 break; 264 case ENC: 265 enc = audio_enc_to_val(q); 266 if (enc >= 0) 267 *(u_int*)p->valp = enc; 268 else 269 errx(1, "Unknown encoding: %s", q); 270 break; 271 case FORMAT: 272 s = strsep(&q, ","); 273 if (s) 274 rdfield(p + 1, s); 275 s = strsep(&q, ","); 276 if (s) 277 rdfield(p + 3, s); 278 s = strsep(&q, ","); 279 if (s) 280 rdfield(p + 4, s); 281 s = strsep(&q, ","); 282 if (s) 283 rdfield(p + 5, s); 284 if (!s || q) 285 errx(1, "Bad format"); 286 break; 287 default: 288 errx(1, "Invalid read format."); 289 } 290 p->flags |= SET; 291 } 292 293 void 294 getinfo(fd) 295 int fd; 296 { 297 int pos, i; 298 299 if (ioctl(fd, AUDIO_GETDEV, &adev) < 0) 300 err(1, "AUDIO_GETDEV"); 301 for (pos = 0, i = 0; ; i++) { 302 audio_encoding_t enc; 303 enc.index = i; 304 if (ioctl(fd, AUDIO_GETENC, &enc) < 0) 305 break; 306 if (pos >= sizeof(encbuf)-1) 307 break; 308 if (pos) 309 encbuf[pos++] = ','; 310 if (pos >= sizeof(encbuf)-1) 311 break; 312 pos += snprintf(encbuf+pos, sizeof(encbuf)-pos, "%s:%d%s", 313 enc.name, enc.precision, 314 enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : ""); 315 } 316 if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0) 317 err(1, "AUDIO_GETFD"); 318 if (ioctl(fd, AUDIO_GETPROPS, &properties) < 0) 319 err(1, "AUDIO_GETPROPS"); 320 if (ioctl(fd, AUDIO_RERROR, &rerror) < 0) 321 err(1, "AUDIO_RERROR"); 322 if (ioctl(fd, AUDIO_GETINFO, &info) < 0) 323 err(1, "AUDIO_GETINFO"); 324 } 325 326 void 327 usage() 328 { 329 const char *prog = getprogname(); 330 331 fprintf(stderr, "Usage: %s [-d file] [-n] name ...\n", prog); 332 fprintf(stderr, "Usage: %s [-d file] [-n] -w name=value ...\n", prog); 333 fprintf(stderr, "Usage: %s [-d file] [-n] -a\n", prog); 334 exit(1); 335 } 336 337 int 338 main(argc, argv) 339 int argc; 340 char **argv; 341 { 342 int fd, i, ch; 343 int aflag = 0, wflag = 0; 344 const char *deffile = _PATH_AUDIOCTL; 345 const char *file; 346 const char *sep = "="; 347 348 file = getenv("AUDIOCTLDEVICE"); 349 if (file == NULL) 350 file = deffile; 351 352 while ((ch = getopt(argc, argv, "ad:f:nw")) != -1) { 353 switch(ch) { 354 case 'a': 355 aflag++; 356 break; 357 case 'w': 358 wflag++; 359 break; 360 case 'n': 361 sep = 0; 362 break; 363 case 'f': /* compatibility */ 364 case 'd': 365 file = optarg; 366 break; 367 case '?': 368 default: 369 usage(); 370 } 371 } 372 argc -= optind; 373 argv += optind; 374 375 fd = open(file, O_WRONLY); 376 if (fd < 0) 377 fd = open(file, O_RDONLY); 378 if (fd < 0 && file == deffile) { 379 file = _PATH_AUDIOCTL0; 380 fd = open(file, O_WRONLY); 381 if (fd < 0) 382 fd = open(file, O_RDONLY); 383 } 384 385 if (fd < 0) 386 err(1, "%s", file); 387 388 if (!wflag) 389 getinfo(fd); 390 391 if (argc == 0 && aflag && !wflag) { 392 for (i = 0; fields[i].name; i++) { 393 if (!(fields[i].flags & ALIAS)) { 394 prfield(&fields[i], sep); 395 printf("\n"); 396 } 397 } 398 } else if (argc > 0 && !aflag) { 399 if (wflag) { 400 audioctl_write(fd, argc, argv); 401 if (sep) { 402 getinfo(fd); 403 for (i = 0; fields[i].name; i++) { 404 if (fields[i].flags & SET) { 405 printf("%s: -> ", fields[i].name); 406 prfield(&fields[i], 0); 407 printf("\n"); 408 } 409 } 410 } 411 } else { 412 struct field *p; 413 while (argc--) { 414 p = findfield(*argv); 415 if (p == 0) { 416 if (strchr(*argv, '=')) 417 warnx("field %s does not exist (use -w to set a variable)", *argv); 418 else 419 warnx("field %s does not exist", *argv); 420 } else { 421 prfield(p, sep); 422 printf("\n"); 423 } 424 argv++; 425 } 426 } 427 } else 428 usage(); 429 exit(0); 430 } 431 432 void 433 audioctl_write(fd, argc, argv) 434 int fd; 435 int argc; 436 char *argv[]; 437 { 438 struct field *p; 439 440 AUDIO_INITINFO(&info); 441 while (argc--) { 442 char *q; 443 444 q = strchr(*argv, '='); 445 if (q) { 446 *q++ = 0; 447 p = findfield(*argv); 448 if (p == 0) 449 warnx("field `%s' does not exist", *argv); 450 else { 451 if (p->flags & READONLY) 452 warnx("`%s' is read only", *argv); 453 else { 454 rdfield(p, q); 455 if (p->valp == &fullduplex) 456 if (ioctl(fd, AUDIO_SETFD, &fullduplex) < 0) 457 err(1, "set failed"); 458 } 459 } 460 } else 461 warnx("No `=' in %s", *argv); 462 argv++; 463 } 464 if (ioctl(fd, AUDIO_SETINFO, &info) < 0) 465 err(1, "set failed"); 466 } 467
Indexes created Thu Sep 25 16:09:42 GMT 2025