ctl.c revision 1.2
1 /* $NetBSD: ctl.c,v 1.2 1997/05/19 16:32:56 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Author: Lennart Augustsson 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE 29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #include <stdio.h> 39 #include <fcntl.h> 40 #include <err.h> 41 #include <unistd.h> 42 #include <string.h> 43 #include <sys/types.h> 44 #include <sys/stat.h> 45 #include <sys/ioctl.h> 46 #include <sys/audioio.h> 47 48 FILE *out = stdout; 49 50 char *prog; 51 52 audio_device_t adev; 53 54 audio_info_t info; 55 56 char encbuf[1000]; 57 58 int fullduplex, rerror; 59 60 struct field { 61 char *name; 62 void *valp; 63 int format; 64 #define STRING 1 65 #define INT 2 66 #define UINT 3 67 #define P_R 4 68 #define ULONG 5 69 #define UCHAR 6 70 #define ENC 7 71 char flags; 72 #define READONLY 1 73 #define ALIAS 2 74 #define SET 4 75 } fields[] = { 76 { "name", &adev.name, STRING, READONLY }, 77 { "version", &adev.version, STRING, READONLY }, 78 { "config", &adev.config, STRING, READONLY }, 79 { "encodings", encbuf, STRING, READONLY }, 80 { "full_duplex", &fullduplex, INT, 0 }, 81 { "blocksize", &info.blocksize, UINT, 0 }, 82 { "hiwat", &info.hiwat, UINT, 0 }, 83 { "lowat", &info.lowat, UINT, 0 }, 84 { "backlog", &info.backlog, UINT, 0 }, 85 { "mode", &info.mode, P_R, READONLY }, 86 { "play.rate", &info.play.sample_rate, UINT, 0 }, 87 { "play.sample_rate", &info.play.sample_rate, UINT, ALIAS }, 88 { "play.channels", &info.play.channels, UINT, 0 }, 89 { "play.precision", &info.play.precision, UINT, 0 }, 90 { "play.encoding", &info.play.encoding, ENC, 0 }, 91 { "play.gain", &info.play.gain, UINT, 0 }, 92 { "play.port", &info.play.port, UINT, 0 }, 93 { "play.seek", &info.play.seek, ULONG, READONLY }, 94 { "play.samples", &info.play.samples, UINT, READONLY }, 95 { "play.eof", &info.play.eof, UINT, READONLY }, 96 { "play.pause", &info.play.pause, UCHAR, 0 }, 97 { "play.error", &info.play.error, UCHAR, READONLY }, 98 { "play.waiting", &info.play.waiting, UCHAR, READONLY }, 99 { "play.open", &info.play.open, UCHAR, READONLY }, 100 { "play.active", &info.play.active, UCHAR, READONLY }, 101 { "record.rate", &info.record.sample_rate,UINT, 0 }, 102 { "record.sample_rate", &info.record.sample_rate,UINT, ALIAS }, 103 { "record.channels", &info.record.channels, UINT, 0 }, 104 { "record.precision", &info.record.precision, UINT, 0 }, 105 { "record.encoding", &info.record.encoding, ENC, 0 }, 106 { "record.gain", &info.record.gain, UINT, 0 }, 107 { "record.port", &info.record.port, UINT, 0 }, 108 { "record.seek", &info.record.seek, ULONG, READONLY }, 109 { "record.samples", &info.record.samples, UINT, READONLY }, 110 { "record.eof", &info.record.eof, UINT, READONLY }, 111 { "record.pause", &info.record.pause, UCHAR, 0 }, 112 { "record.error", &info.record.error, UCHAR, READONLY }, 113 { "record.waiting", &info.record.waiting, UCHAR, READONLY }, 114 { "record.open", &info.record.open, UCHAR, READONLY }, 115 { "record.active", &info.record.active, UCHAR, READONLY }, 116 { "record.errors", &rerror, INT, READONLY }, 117 { 0 } 118 }; 119 120 struct { 121 char *ename; 122 int eno; 123 } encs[] = { 124 { "ulaw", AUDIO_ENCODING_ULAW }, 125 { "alaw", AUDIO_ENCODING_ALAW }, 126 { "linear", AUDIO_ENCODING_LINEAR }, 127 { "ulinear", AUDIO_ENCODING_ULINEAR }, 128 { "adpcm", AUDIO_ENCODING_ADPCM }, 129 { "ADPCM", AUDIO_ENCODING_ADPCM }, 130 { "mulaw", AUDIO_ENCODING_ULAW }, 131 { "linear_le", AUDIO_ENCODING_LINEAR_LE }, 132 { "ulinear_le", AUDIO_ENCODING_ULINEAR_LE }, 133 { "linear_be", AUDIO_ENCODING_LINEAR_BE }, 134 { "ulinear_be", AUDIO_ENCODING_ULINEAR_BE }, 135 { 0 } 136 }; 137 138 struct field * 139 findfield(char *name) 140 { 141 int i; 142 for(i = 0; fields[i].name; i++) 143 if (strcmp(fields[i].name, name) == 0) 144 return &fields[i]; 145 return 0; 146 } 147 148 void 149 prfield(struct field *p, char *sep) 150 { 151 u_int v; 152 char *cm; 153 int i; 154 155 if (sep) 156 fprintf(out, "%s%s", p->name, sep); 157 switch(p->format) { 158 case STRING: 159 fprintf(out, "%s", (char*)p->valp); 160 break; 161 case INT: 162 fprintf(out, "%d", *(int*)p->valp); 163 break; 164 case UINT: 165 fprintf(out, "%u", *(u_int*)p->valp); 166 break; 167 case UCHAR: 168 fprintf(out, "%u", *(u_char*)p->valp); 169 break; 170 case ULONG: 171 fprintf(out, "%lu", *(u_long*)p->valp); 172 break; 173 case P_R: 174 v = *(u_int*)p->valp; 175 cm = ""; 176 if (v & AUMODE_PLAY) { 177 if (v & AUMODE_PLAY_ALL) 178 fprintf(out, "play"); 179 else 180 fprintf(out, "playsync"); 181 cm = ","; 182 } 183 if (v & AUMODE_RECORD) 184 fprintf(out, "%srecord", cm); 185 break; 186 case ENC: 187 v = *(u_int*)p->valp; 188 for(i = 0; encs[i].ename; i++) 189 if (encs[i].eno == v) 190 break; 191 if (encs[i].ename) 192 fprintf(out, "%s", encs[i].ename); 193 else 194 fprintf(out, "%u", v); 195 break; 196 default: 197 errx(1, "Invalid format."); 198 } 199 } 200 201 void 202 rdfield(struct field *p, char *q) 203 { 204 int i; 205 206 switch(p->format) { 207 case UINT: 208 if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) 209 warnx("Bad number %s", q); 210 break; 211 case ENC: 212 for(i = 0; encs[i].ename; i++) 213 if (strcmp(encs[i].ename, q) == 0) 214 break; 215 if (encs[i].ename) 216 *(u_int*)p->valp = encs[i].eno; 217 else 218 warnx("Unknown encoding: %s", q); 219 break; 220 default: 221 errx(1, "Invalid format."); 222 } 223 p->flags |= SET; 224 } 225 226 void 227 getinfo(int fd) 228 { 229 int pos, i; 230 231 if (ioctl(fd, AUDIO_GETDEV, &adev) < 0) 232 err(1, NULL); 233 for(pos = 0, i = 0; ; i++) { 234 audio_encoding_t enc; 235 enc.index = i; 236 if (ioctl(fd, AUDIO_GETENC, &enc) < 0) 237 break; 238 if (pos) 239 encbuf[pos++] = ','; 240 sprintf(encbuf+pos, "%s:%d%s", enc.name, 241 enc.precision, 242 enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : ""); 243 pos += strlen(encbuf+pos); 244 } 245 if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0) 246 err(1, NULL); 247 if (ioctl(fd, AUDIO_RERROR, &rerror) < 0) 248 err(1, NULL); 249 if (ioctl(fd, AUDIO_GETINFO, &info) < 0) 250 err(1, NULL); 251 } 252 253 void 254 usage(void) 255 { 256 fprintf(out, "%s [-f file] [-n] name ...\n", prog); 257 fprintf(out, "%s [-f file] [-n] -w name=value ...\n", prog); 258 fprintf(out, "%s [-f file] [-n] -a\n", prog); 259 exit(1); 260 } 261 262 void 263 main(int argc, char **argv) 264 { 265 int fd, i, ch; 266 int aflag = 0, wflag = 0; 267 struct stat dstat, ostat; 268 char *file = "/dev/sound"; 269 char *sep = "="; 270 271 prog = *argv; 272 273 while ((ch = getopt(argc, argv, "af:nw")) != -1) { 274 switch(ch) { 275 case 'a': 276 aflag++; 277 break; 278 case 'w': 279 wflag++; 280 break; 281 case 'n': 282 sep = 0; 283 break; 284 case 'f': 285 file = optarg; 286 break; 287 case '?': 288 default: 289 usage(); 290 } 291 } 292 argc -= optind; 293 argv += optind; 294 295 fd = open(file, O_RDWR); 296 if (fd < 0) 297 fd = open(file, O_WRONLY); 298 if (fd < 0) 299 fd = open(file, O_RDONLY); 300 if (fd < 0) 301 err(1, "%s", file); 302 303 /* Check is stdout is the same device as the audio device. */ 304 if (fstat(fd, &dstat) < 0) 305 err(1, NULL); 306 if (fstat(STDOUT_FILENO, &ostat) < 0) 307 err(1, NULL); 308 if (S_ISCHR(dstat.st_mode) && S_ISCHR(ostat.st_mode) && 309 major(dstat.st_dev) == major(ostat.st_dev) && 310 minor(dstat.st_dev) == minor(ostat.st_dev)) 311 /* We can't write to stdout so use stderr */ 312 out = stderr; 313 314 if (!wflag) 315 getinfo(fd); 316 317 if (argc == 0 && aflag && !wflag) { 318 for(i = 0; fields[i].name; i++) { 319 if (!(fields[i].flags & ALIAS)) { 320 prfield(&fields[i], sep); 321 fprintf(out, "\n"); 322 } 323 } 324 } else if (argc > 0 && !aflag) { 325 struct field *p; 326 if (wflag) { 327 AUDIO_INITINFO(&info); 328 while(argc--) { 329 char *q; 330 331 q = strchr(*argv, '='); 332 if (q) { 333 *q++ = 0; 334 p = findfield(*argv); 335 if (p == 0) 336 warnx("field %s does not exist", *argv); 337 else { 338 if (p->flags & READONLY) 339 warnx("%s is read only", *argv); 340 else { 341 rdfield(p, q); 342 if (p->valp == &fullduplex) 343 if (ioctl(fd, AUDIO_SETFD, &fullduplex) < 0) 344 err(1, "set failed"); 345 } 346 } 347 } else 348 warnx("No `=' in %s", *argv); 349 argv++; 350 } 351 if (ioctl(fd, AUDIO_SETINFO, &info) < 0) 352 err(1, "set failed"); 353 if (sep) { 354 getinfo(fd); 355 for(i = 0; fields[i].name; i++) { 356 if (fields[i].flags & SET) { 357 fprintf(out, "%s: -> ", p->name); 358 prfield(p, 0); 359 fprintf(out, "\n"); 360 } 361 } 362 } 363 } else { 364 while(argc--) { 365 p = findfield(*argv); 366 if (p == 0) { 367 if (strchr(*argv, '=')) 368 warnx("field %s does not exist (use -w to set a variable)", *argv); 369 else 370 warnx("field %s does not exist", *argv); 371 } else { 372 prfield(p, sep); 373 fprintf(out, "\n"); 374 } 375 argv++; 376 } 377 } 378 } else 379 usage(); 380 exit(0); 381 } 382
Indexes created Thu Sep 25 16:09:42 GMT 2025