NetBSD/usr.bin/audioctl/audioctl.c

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/* $NetBSD: audioctl.c,v 1.2 1997/05/19 16:32:56 augustss Exp $ */
/*
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Author: Lennart Augustsson
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <fcntl.h>
#include <err.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/audioio.h>
FILE *out = stdout;
char *prog;
audio_device_t adev;
audio_info_t info;
char encbuf[1000];
int fullduplex, rerror;
struct field {
char *name;
void *valp;
int format;
#define STRING 1
#define INT 2
#define UINT 3
#define P_R 4
#define ULONG 5
#define UCHAR 6
#define ENC 7
char flags;
#define READONLY 1
#define ALIAS 2
#define SET 4
} fields[] = {
{ "name", &adev.name, STRING, READONLY },
{ "version", &adev.version, STRING, READONLY },
{ "config", &adev.config, STRING, READONLY },
{ "encodings", encbuf, STRING, READONLY },
{ "full_duplex", &fullduplex, INT, 0 },
{ "blocksize", &info.blocksize, UINT, 0 },
{ "hiwat", &info.hiwat, UINT, 0 },
{ "lowat", &info.lowat, UINT, 0 },
{ "backlog", &info.backlog, UINT, 0 },
{ "mode", &info.mode, P_R, READONLY },
{ "play.rate", &info.play.sample_rate, UINT, 0 },
{ "play.sample_rate", &info.play.sample_rate, UINT, ALIAS },
{ "play.channels", &info.play.channels, UINT, 0 },
{ "play.precision", &info.play.precision, UINT, 0 },
{ "play.encoding", &info.play.encoding, ENC, 0 },
{ "play.gain", &info.play.gain, UINT, 0 },
{ "play.port", &info.play.port, UINT, 0 },
{ "play.seek", &info.play.seek, ULONG, READONLY },
{ "play.samples", &info.play.samples, UINT, READONLY },
{ "play.eof", &info.play.eof, UINT, READONLY },
{ "play.pause", &info.play.pause, UCHAR, 0 },
{ "play.error", &info.play.error, UCHAR, READONLY },
{ "play.waiting", &info.play.waiting, UCHAR, READONLY },
{ "play.open", &info.play.open, UCHAR, READONLY },
{ "play.active", &info.play.active, UCHAR, READONLY },
{ "record.rate", &info.record.sample_rate,UINT, 0 },
{ "record.sample_rate", &info.record.sample_rate,UINT, ALIAS },
{ "record.channels", &info.record.channels, UINT, 0 },
{ "record.precision", &info.record.precision, UINT, 0 },
{ "record.encoding", &info.record.encoding, ENC, 0 },
{ "record.gain", &info.record.gain, UINT, 0 },
{ "record.port", &info.record.port, UINT, 0 },
{ "record.seek", &info.record.seek, ULONG, READONLY },
{ "record.samples", &info.record.samples, UINT, READONLY },
{ "record.eof", &info.record.eof, UINT, READONLY },
{ "record.pause", &info.record.pause, UCHAR, 0 },
{ "record.error", &info.record.error, UCHAR, READONLY },
{ "record.waiting", &info.record.waiting, UCHAR, READONLY },
{ "record.open", &info.record.open, UCHAR, READONLY },
{ "record.active", &info.record.active, UCHAR, READONLY },
{ "record.errors", &rerror, INT, READONLY },
{ 0 }
};
struct {
char *ename;
int eno;
} encs[] = {
{ "ulaw", AUDIO_ENCODING_ULAW },
{ "alaw", AUDIO_ENCODING_ALAW },
{ "linear", AUDIO_ENCODING_LINEAR },
{ "ulinear", AUDIO_ENCODING_ULINEAR },
{ "adpcm", AUDIO_ENCODING_ADPCM },
{ "ADPCM", AUDIO_ENCODING_ADPCM },
{ "mulaw", AUDIO_ENCODING_ULAW },
{ "linear_le", AUDIO_ENCODING_LINEAR_LE },
{ "ulinear_le", AUDIO_ENCODING_ULINEAR_LE },
{ "linear_be", AUDIO_ENCODING_LINEAR_BE },
{ "ulinear_be", AUDIO_ENCODING_ULINEAR_BE },
{ 0 }
};
struct field *
findfield(char *name)
{
int i;
for(i = 0; fields[i].name; i++)
if (strcmp(fields[i].name, name) == 0)
return &fields[i];
return 0;
}
void
prfield(struct field *p, char *sep)
{
u_int v;
char *cm;
int i;
if (sep)
fprintf(out, "%s%s", p->name, sep);
switch(p->format) {
case STRING:
fprintf(out, "%s", (char*)p->valp);
break;
case INT:
fprintf(out, "%d", *(int*)p->valp);
break;
case UINT:
fprintf(out, "%u", *(u_int*)p->valp);
break;
case UCHAR:
fprintf(out, "%u", *(u_char*)p->valp);
break;
case ULONG:
fprintf(out, "%lu", *(u_long*)p->valp);
break;
case P_R:
v = *(u_int*)p->valp;
cm = "";
if (v & AUMODE_PLAY) {
if (v & AUMODE_PLAY_ALL)
fprintf(out, "play");
else
fprintf(out, "playsync");
cm = ",";
}
if (v & AUMODE_RECORD)
fprintf(out, "%srecord", cm);
break;
case ENC:
v = *(u_int*)p->valp;
for(i = 0; encs[i].ename; i++)
if (encs[i].eno == v)
break;
if (encs[i].ename)
fprintf(out, "%s", encs[i].ename);
else
fprintf(out, "%u", v);
break;
default:
errx(1, "Invalid format.");
}
}
void
rdfield(struct field *p, char *q)
{
int i;
switch(p->format) {
case UINT:
if (sscanf(q, "%u", (unsigned int *)p->valp) != 1)
warnx("Bad number %s", q);
break;
case ENC:
for(i = 0; encs[i].ename; i++)
if (strcmp(encs[i].ename, q) == 0)
break;
if (encs[i].ename)
*(u_int*)p->valp = encs[i].eno;
else
warnx("Unknown encoding: %s", q);
break;
default:
errx(1, "Invalid format.");
}
p->flags |= SET;
}
void
getinfo(int fd)
{
int pos, i;
if (ioctl(fd, AUDIO_GETDEV, &adev) < 0)
err(1, NULL);
for(pos = 0, i = 0; ; i++) {
audio_encoding_t enc;
enc.index = i;
if (ioctl(fd, AUDIO_GETENC, &enc) < 0)
break;
if (pos)
encbuf[pos++] = ',';
sprintf(encbuf+pos, "%s:%d%s", enc.name,
enc.precision,
enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : "");
pos += strlen(encbuf+pos);
}
if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0)
err(1, NULL);
if (ioctl(fd, AUDIO_RERROR, &rerror) < 0)
err(1, NULL);
if (ioctl(fd, AUDIO_GETINFO, &info) < 0)
err(1, NULL);
}
void
usage(void)
{
fprintf(out, "%s [-f file] [-n] name ...\n", prog);
fprintf(out, "%s [-f file] [-n] -w name=value ...\n", prog);
fprintf(out, "%s [-f file] [-n] -a\n", prog);
exit(1);
}
void
main(int argc, char **argv)
{
int fd, i, ch;
int aflag = 0, wflag = 0;
struct stat dstat, ostat;
char *file = "/dev/sound";
char *sep = "=";
prog = *argv;
while ((ch = getopt(argc, argv, "af:nw")) != -1) {
switch(ch) {
case 'a':
aflag++;
break;
case 'w':
wflag++;
break;
case 'n':
sep = 0;
break;
case 'f':
file = optarg;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
fd = open(file, O_RDWR);
if (fd < 0)
fd = open(file, O_WRONLY);
if (fd < 0)
fd = open(file, O_RDONLY);
if (fd < 0)
err(1, "%s", file);
/* Check is stdout is the same device as the audio device. */
if (fstat(fd, &dstat) < 0)
err(1, NULL);
if (fstat(STDOUT_FILENO, &ostat) < 0)
err(1, NULL);
if (S_ISCHR(dstat.st_mode) && S_ISCHR(ostat.st_mode) &&
major(dstat.st_dev) == major(ostat.st_dev) &&
minor(dstat.st_dev) == minor(ostat.st_dev))
/* We can't write to stdout so use stderr */
out = stderr;
if (!wflag)
getinfo(fd);
if (argc == 0 && aflag && !wflag) {
for(i = 0; fields[i].name; i++) {
if (!(fields[i].flags & ALIAS)) {
prfield(&fields[i], sep);
fprintf(out, "\n");
}
}
} else if (argc > 0 && !aflag) {
struct field *p;
if (wflag) {
AUDIO_INITINFO(&info);
while(argc--) {
char *q;
q = strchr(*argv, '=');
if (q) {
*q++ = 0;
p = findfield(*argv);
if (p == 0)
warnx("field %s does not exist", *argv);
else {
if (p->flags & READONLY)
warnx("%s is read only", *argv);
else {
rdfield(p, q);
if (p->valp == &fullduplex)
if (ioctl(fd, AUDIO_SETFD, &fullduplex) < 0)
err(1, "set failed");
}
}
} else
warnx("No `=' in %s", *argv);
argv++;
}
if (ioctl(fd, AUDIO_SETINFO, &info) < 0)
err(1, "set failed");
if (sep) {
getinfo(fd);
for(i = 0; fields[i].name; i++) {
if (fields[i].flags & SET) {
fprintf(out, "%s: -> ", p->name);
prfield(p, 0);
fprintf(out, "\n");
}
}
}
} else {
while(argc--) {
p = findfield(*argv);
if (p == 0) {
if (strchr(*argv, '='))
warnx("field %s does not exist (use -w to set a variable)", *argv);
else
warnx("field %s does not exist", *argv);
} else {
prfield(p, sep);
fprintf(out, "\n");
}
argv++;
}
}
} else
usage();
exit(0);
}