Annotation of src/usr.bin/audioctl/audioctl.c, Revision 1.23
1.23 ! deraadt 1: /* $OpenBSD: audioctl.c,v 1.22 2012/07/27 00:21:17 krw Exp $ */
1.3 provos 2: /* $NetBSD: audioctl.c,v 1.14 1998/04/27 16:55:23 augustss Exp $ */
1.1 provos 3:
4: /*
5: * Copyright (c) 1997 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * Author: Lennart Augustsson
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:
1.7 pvalchev 32: /*
33: * audioctl(1) - a program to control audio device.
34: */
35:
1.1 provos 36: #include <stdio.h>
1.3 provos 37: #include <stdlib.h>
1.1 provos 38: #include <fcntl.h>
39: #include <err.h>
40: #include <unistd.h>
41: #include <string.h>
42: #include <sys/types.h>
43: #include <sys/stat.h>
44: #include <sys/ioctl.h>
45: #include <sys/audioio.h>
46:
1.6 millert 47: struct field *findfield(char *name);
1.12 moritz 48: void prfield(struct field *p, const char *sep);
1.6 millert 49: void rdfield(struct field *p, char *q);
50: void getinfo(int fd);
51: void usage(void);
52: int main(int argc, char **argv);
1.1 provos 53:
54: FILE *out = stdout;
55:
56: audio_device_t adev;
57:
58: audio_info_t info;
59:
60: char encbuf[1000];
61:
1.18 jakemsr 62: int properties, fullduplex, perrors, rerrors;
1.1 provos 63:
64: struct field {
1.12 moritz 65: const char *name;
1.1 provos 66: void *valp;
67: int format;
68: #define STRING 1
69: #define INT 2
70: #define UINT 3
71: #define P_R 4
72: #define UCHAR 6
73: #define ENC 7
74: #define PROPS 8
75: #define XINT 9
76: char flags;
77: #define READONLY 1
78: #define ALIAS 2
79: #define SET 4
1.22 krw 80: u_int oldval;
1.1 provos 81: } fields[] = {
82: { "name", &adev.name, STRING, READONLY },
83: { "version", &adev.version, STRING, READONLY },
84: { "config", &adev.config, STRING, READONLY },
85: { "encodings", encbuf, STRING, READONLY },
86: { "properties", &properties, PROPS, READONLY },
1.4 deraadt 87: { "full_duplex", &fullduplex, UINT, 0 },
88: { "fullduplex", &fullduplex, UINT, 0 },
1.1 provos 89: { "blocksize", &info.blocksize, UINT, 0 },
90: { "hiwat", &info.hiwat, UINT, 0 },
91: { "lowat", &info.lowat, UINT, 0 },
1.14 jakemsr 92: { "output_muted", &info.output_muted, UCHAR, 0 },
1.1 provos 93: { "monitor_gain", &info.monitor_gain, UINT, 0 },
94: { "mode", &info.mode, P_R, READONLY },
95: { "play.rate", &info.play.sample_rate, UINT, 0 },
96: { "play.sample_rate", &info.play.sample_rate, UINT, ALIAS },
97: { "play.channels", &info.play.channels, UINT, 0 },
98: { "play.precision", &info.play.precision, UINT, 0 },
1.21 jakemsr 99: { "play.bps", &info.play.bps, UINT, 0 },
100: { "play.msb", &info.play.msb, UINT, 0 },
1.1 provos 101: { "play.encoding", &info.play.encoding, ENC, 0 },
102: { "play.gain", &info.play.gain, UINT, 0 },
103: { "play.balance", &info.play.balance, UCHAR, 0 },
104: { "play.port", &info.play.port, XINT, 0 },
105: { "play.avail_ports", &info.play.avail_ports, XINT, 0 },
1.8 naddy 106: { "play.seek", &info.play.seek, UINT, READONLY },
1.1 provos 107: { "play.samples", &info.play.samples, UINT, READONLY },
108: { "play.eof", &info.play.eof, UINT, READONLY },
109: { "play.pause", &info.play.pause, UCHAR, 0 },
110: { "play.error", &info.play.error, UCHAR, READONLY },
111: { "play.waiting", &info.play.waiting, UCHAR, READONLY },
112: { "play.open", &info.play.open, UCHAR, READONLY },
113: { "play.active", &info.play.active, UCHAR, READONLY },
114: { "play.buffer_size", &info.play.buffer_size, UINT, 0 },
1.17 ratchov 115: { "play.block_size", &info.play.block_size, UINT, 0 },
1.18 jakemsr 116: { "play.errors", &perrors, INT, READONLY },
1.1 provos 117: { "record.rate", &info.record.sample_rate,UINT, 0 },
118: { "record.sample_rate", &info.record.sample_rate,UINT, ALIAS },
119: { "record.channels", &info.record.channels, UINT, 0 },
120: { "record.precision", &info.record.precision, UINT, 0 },
1.21 jakemsr 121: { "record.bps", &info.record.bps, UINT, 0 },
122: { "record.msb", &info.record.msb, UINT, 0 },
1.1 provos 123: { "record.encoding", &info.record.encoding, ENC, 0 },
124: { "record.gain", &info.record.gain, UINT, 0 },
125: { "record.balance", &info.record.balance, UCHAR, 0 },
126: { "record.port", &info.record.port, XINT, 0 },
127: { "record.avail_ports", &info.record.avail_ports,XINT, 0 },
1.8 naddy 128: { "record.seek", &info.record.seek, UINT, READONLY },
1.1 provos 129: { "record.samples", &info.record.samples, UINT, READONLY },
130: { "record.eof", &info.record.eof, UINT, READONLY },
131: { "record.pause", &info.record.pause, UCHAR, 0 },
132: { "record.error", &info.record.error, UCHAR, READONLY },
133: { "record.waiting", &info.record.waiting, UCHAR, READONLY },
134: { "record.open", &info.record.open, UCHAR, READONLY },
135: { "record.active", &info.record.active, UCHAR, READONLY },
136: { "record.buffer_size", &info.record.buffer_size,UINT, 0 },
1.17 ratchov 137: { "record.block_size", &info.record.block_size,UINT, 0 },
1.18 jakemsr 138: { "record.errors", &rerrors, INT, READONLY },
1.1 provos 139: { 0 }
140: };
141:
142: struct {
1.12 moritz 143: const char *ename;
144: u_int eno;
1.1 provos 145: } encs[] = {
146: { AudioEmulaw, AUDIO_ENCODING_ULAW },
147: { "ulaw", AUDIO_ENCODING_ULAW },
148: { AudioEalaw, AUDIO_ENCODING_ALAW },
149: { AudioEslinear, AUDIO_ENCODING_SLINEAR },
150: { "linear", AUDIO_ENCODING_SLINEAR },
151: { AudioEulinear, AUDIO_ENCODING_ULINEAR },
152: { AudioEadpcm, AUDIO_ENCODING_ADPCM },
153: { "ADPCM", AUDIO_ENCODING_ADPCM },
154: { AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE },
155: { "linear_le", AUDIO_ENCODING_SLINEAR_LE },
156: { AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE },
157: { AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE },
158: { "linear_be", AUDIO_ENCODING_SLINEAR_BE },
159: { AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE },
160: { AudioEmpeg_l1_stream, AUDIO_ENCODING_MPEG_L1_STREAM },
161: { AudioEmpeg_l1_packets,AUDIO_ENCODING_MPEG_L1_PACKETS },
162: { AudioEmpeg_l1_system, AUDIO_ENCODING_MPEG_L1_SYSTEM },
163: { AudioEmpeg_l2_stream, AUDIO_ENCODING_MPEG_L2_STREAM },
164: { AudioEmpeg_l2_packets,AUDIO_ENCODING_MPEG_L2_PACKETS },
165: { AudioEmpeg_l2_system, AUDIO_ENCODING_MPEG_L2_SYSTEM },
166: { 0 }
167: };
168:
169: static struct {
1.12 moritz 170: const char *name;
1.1 provos 171: u_int prop;
172: } props[] = {
173: { "full_duplex", AUDIO_PROP_FULLDUPLEX },
174: { "mmap", AUDIO_PROP_MMAP },
175: { "independent", AUDIO_PROP_INDEPENDENT },
176: { 0 }
177: };
178:
179: struct field *
1.7 pvalchev 180: findfield(char *name)
1.1 provos 181: {
182: int i;
1.15 sobrado 183: for (i = 0; fields[i].name; i++)
1.1 provos 184: if (strcmp(fields[i].name, name) == 0)
185: return &fields[i];
1.7 pvalchev 186: return (0);
1.1 provos 187: }
188:
1.23 ! deraadt 189: static void
1.20 ratchov 190: prval(u_int format, void *valp)
1.1 provos 191: {
192: u_int v;
1.12 moritz 193: const char *cm;
1.1 provos 194: int i;
195:
1.20 ratchov 196: switch (format) {
1.1 provos 197: case STRING:
1.20 ratchov 198: fprintf(out, "%s", (char *)valp);
1.1 provos 199: break;
200: case INT:
1.20 ratchov 201: fprintf(out, "%d", *(int *)valp);
1.1 provos 202: break;
203: case UINT:
1.20 ratchov 204: fprintf(out, "%u", *(u_int *)valp);
1.1 provos 205: break;
206: case XINT:
1.20 ratchov 207: fprintf(out, "0x%x", *(u_int *)valp);
1.1 provos 208: break;
209: case UCHAR:
1.20 ratchov 210: fprintf(out, "%u", *(u_char *)valp);
1.1 provos 211: break;
212: case P_R:
1.20 ratchov 213: v = *(u_int *)valp;
1.1 provos 214: cm = "";
215: if (v & AUMODE_PLAY) {
216: if (v & AUMODE_PLAY_ALL)
217: fprintf(out, "play");
218: else
219: fprintf(out, "playsync");
220: cm = ",";
221: }
222: if (v & AUMODE_RECORD)
223: fprintf(out, "%srecord", cm);
224: break;
225: case ENC:
1.20 ratchov 226: v = *(u_int *)valp;
1.15 sobrado 227: for (i = 0; encs[i].ename; i++)
1.1 provos 228: if (encs[i].eno == v)
229: break;
230: if (encs[i].ename)
231: fprintf(out, "%s", encs[i].ename);
232: else
233: fprintf(out, "%u", v);
234: break;
235: case PROPS:
1.20 ratchov 236: v = *(u_int *)valp;
1.1 provos 237: for (cm = "", i = 0; props[i].name; i++) {
238: if (v & props[i].prop) {
239: fprintf(out, "%s%s", cm, props[i].name);
240: cm = ",";
241: }
242: }
243: break;
244: default:
245: errx(1, "Invalid print format.");
246: }
247: }
248:
249: void
1.20 ratchov 250: prfield(struct field *p, const char *sep)
251: {
252: if (sep) {
253: fprintf(out, "%s", p->name);
254: if (p->flags & SET) {
255: fprintf(out, "%s", ": ");
256: prval(p->format, &p->oldval);
257: fprintf(out, " -> ");
258: } else
259: fprintf(out, "%s", sep);
260: }
261: prval(p->format, p->valp);
262: fprintf(out, "\n");
263: }
264:
265: void
1.7 pvalchev 266: rdfield(struct field *p, char *q)
1.1 provos 267: {
268: int i;
269: u_int u;
270:
1.15 sobrado 271: switch (p->format) {
1.1 provos 272: case UINT:
1.20 ratchov 273: p->oldval = *(u_int *)p->valp;
274: if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) {
1.1 provos 275: warnx("Bad number %s", q);
1.20 ratchov 276: return;
277: }
1.1 provos 278: break;
279: case UCHAR:
1.20 ratchov 280: *(char *)&p->oldval = *(u_char *)p->valp;
281: if (sscanf(q, "%u", &u) != 1) {
1.1 provos 282: warnx("Bad number %s", q);
1.20 ratchov 283: return;
284: }
285: *(u_char *)p->valp = u;
1.1 provos 286: break;
287: case XINT:
1.20 ratchov 288: p->oldval = *(u_int *)p->valp;
1.1 provos 289: if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 &&
1.20 ratchov 290: sscanf(q, "%x", (unsigned int *)p->valp) != 1) {
1.1 provos 291: warnx("Bad number %s", q);
1.20 ratchov 292: return;
293: }
1.1 provos 294: break;
295: case ENC:
1.20 ratchov 296: p->oldval = *(u_int *)p->valp;
1.15 sobrado 297: for (i = 0; encs[i].ename; i++)
1.1 provos 298: if (strcmp(encs[i].ename, q) == 0)
299: break;
300: if (encs[i].ename)
301: *(u_int*)p->valp = encs[i].eno;
1.20 ratchov 302: else {
1.1 provos 303: warnx("Unknown encoding: %s", q);
1.20 ratchov 304: return;
305: }
1.1 provos 306: break;
307: default:
308: errx(1, "Invalid read format.");
309: }
310: p->flags |= SET;
311: }
312:
313: void
1.7 pvalchev 314: getinfo(int fd)
1.1 provos 315: {
1.7 pvalchev 316: int pos = 0, i = 0;
1.1 provos 317:
318: if (ioctl(fd, AUDIO_GETDEV, &adev) < 0)
319: err(1, "AUDIO_GETDEV");
1.15 sobrado 320: for (;;) {
1.9 deraadt 321: audio_encoding_t enc;
322: enc.index = i++;
323: if (ioctl(fd, AUDIO_GETENC, &enc) < 0)
324: break;
325: if (pos)
326: encbuf[pos++] = ',';
1.21 jakemsr 327: snprintf(encbuf+pos, sizeof(encbuf)-pos, "%s:%d:%d:%d%s",
328: enc.name, enc.precision, enc.bps, enc.msb,
1.9 deraadt 329: enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : "");
330: pos += strlen(encbuf+pos);
1.1 provos 331: }
332: if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0)
333: err(1, "AUDIO_GETFD");
334: if (ioctl(fd, AUDIO_GETPROPS, &properties) < 0)
335: err(1, "AUDIO_GETPROPS");
1.18 jakemsr 336: if (ioctl(fd, AUDIO_PERROR, &perrors) < 0)
337: err(1, "AUDIO_PERROR");
338: if (ioctl(fd, AUDIO_RERROR, &rerrors) < 0)
1.1 provos 339: err(1, "AUDIO_RERROR");
340: if (ioctl(fd, AUDIO_GETINFO, &info) < 0)
341: err(1, "AUDIO_GETINFO");
342: }
343:
344: void
1.7 pvalchev 345: usage(void)
1.1 provos 346: {
1.7 pvalchev 347: extern char *__progname; /* from crt0.o */
348:
349: fprintf(stderr,
1.16 deraadt 350: "usage: %s [-an] [-f file]\n"
1.15 sobrado 351: " %s [-n] [-f file] name ...\n"
352: " %s [-n] [-f file] name=value ...\n",
353: __progname, __progname, __progname);
1.7 pvalchev 354:
1.1 provos 355: exit(1);
356: }
357:
358: int
1.7 pvalchev 359: main(int argc, char **argv)
1.1 provos 360: {
361: int fd, i, ch;
1.11 vincent 362: int aflag = 0, canwrite, writeinfo = 0;
1.1 provos 363: struct stat dstat, ostat;
1.11 vincent 364: struct field *p;
1.12 moritz 365: const char *file;
366: const char *sep = "=";
1.1 provos 367:
1.7 pvalchev 368: if ((file = getenv("AUDIOCTLDEVICE")) == 0 || *file == '\0')
1.3 provos 369: file = "/dev/audioctl";
1.1 provos 370:
371: while ((ch = getopt(argc, argv, "af:nw")) != -1) {
1.15 sobrado 372: switch (ch) {
1.1 provos 373: case 'a':
374: aflag++;
375: break;
376: case 'w':
1.11 vincent 377: /* backward compatibility */
1.1 provos 378: break;
379: case 'n':
380: sep = 0;
381: break;
382: case 'f':
383: file = optarg;
384: break;
385: default:
386: usage();
387: }
388: }
389: argc -= optind;
390: argv += optind;
1.16 deraadt 391:
392: if (argc == 0)
393: aflag++;
1.11 vincent 394:
395: if ((fd = open(file, O_RDWR)) < 0) {
396: if ((fd = open(file, O_RDONLY)) < 0)
397: err(1, "%s", file);
398: canwrite = 0;
399: } else
400: canwrite = 1;
1.1 provos 401:
402: /* Check if stdout is the same device as the audio device. */
403: if (fstat(fd, &dstat) < 0)
404: err(1, "fstat au");
405: if (fstat(STDOUT_FILENO, &ostat) < 0)
406: err(1, "fstat stdout");
407: if (S_ISCHR(dstat.st_mode) && S_ISCHR(ostat.st_mode) &&
408: major(dstat.st_dev) == major(ostat.st_dev) &&
409: minor(dstat.st_dev) == minor(ostat.st_dev))
410: /* We can't write to stdout so use stderr */
411: out = stderr;
412:
1.11 vincent 413: if (!argc && !aflag)
414: usage();
415:
416: getinfo(fd);
1.1 provos 417:
1.11 vincent 418: if (aflag) {
419: for (i = 0; fields[i].name; i++) {
1.1 provos 420: if (!(fields[i].flags & ALIAS)) {
421: prfield(&fields[i], sep);
422: }
423: }
1.11 vincent 424: } else {
425: while (argc--) {
426: char *q;
1.1 provos 427:
1.11 vincent 428: if ((q = strchr(*argv, '=')) != NULL) {
429: *q++ = 0;
430: p = findfield(*argv);
431: if (p == 0)
432: warnx("field `%s' does not exist", *argv);
433: else {
434: if (!canwrite)
435: errx(1, "%s: permission denied",
436: *argv);
437: if (p->flags & READONLY)
438: warnx("`%s' is read only", *argv);
1.1 provos 439: else {
1.11 vincent 440: rdfield(p, q);
441: if (p->valp == &fullduplex)
442: if (ioctl(fd, AUDIO_SETFD,
443: &fullduplex) < 0)
444: err(1, "set failed");
1.1 provos 445: }
1.11 vincent 446: writeinfo = 1;
1.1 provos 447: }
1.11 vincent 448: } else {
1.1 provos 449: p = findfield(*argv);
1.11 vincent 450: if (p == 0)
451: warnx("field %s does not exist", *argv);
452: else {
1.1 provos 453: prfield(p, sep);
454: }
1.11 vincent 455: }
456: argv++;
457: }
458: if (writeinfo && ioctl(fd, AUDIO_SETINFO, &info) < 0)
459: err(1, "set failed");
1.20 ratchov 460: getinfo(fd);
461: for (i = 0; fields[i].name; i++) {
462: if (fields[i].flags & SET) {
463: prfield(&fields[i], sep);
1.1 provos 464: }
465: }
1.11 vincent 466: }
1.1 provos 467: exit(0);
468: }
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