File: [local] / src / usr.bin / audioctl / audioctl.c (download)
Revision 1.27, Sat May 16 12:51:24 2015 UTC (9 years ago) by ratchov
Branch: MAIN
Changes since 1.26: +1 -4 lines
Display simply "play" when play mode is set (furthermore, "playsync",
aka PLAY_ALL mode is not used anymore)
|
/* $OpenBSD: audioctl.c,v 1.27 2015/05/16 12:51:24 ratchov Exp $ */
/* $NetBSD: audioctl.c,v 1.14 1998/04/27 16:55:23 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.
*
* 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 FOUNDATION 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.
*/
/*
* audioctl(1) - a program to control audio device.
*/
#include <stdio.h>
#include <stdlib.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>
struct field *findfield(char *name);
void prfield(struct field *p, const char *sep);
void rdfield(struct field *p, char *q);
void getinfo(int fd);
void usage(void);
int main(int argc, char **argv);
FILE *out = stdout;
audio_device_t adev;
audio_info_t info;
char encbuf[1000];
int properties, fullduplex, perrors, rerrors;
struct field {
const char *name;
void *valp;
int format;
#define STRING 1
#define INT 2
#define UINT 3
#define P_R 4
#define UCHAR 6
#define ENC 7
#define PROPS 8
#define XINT 9
char flags;
#define READONLY 1
#define ALIAS 2
#define SET 4
u_int oldval;
} fields[] = {
{ "name", &adev.name, STRING, READONLY },
{ "encodings", encbuf, STRING, READONLY },
{ "properties", &properties, PROPS, READONLY },
{ "hiwat", &info.hiwat, UINT, 0 },
{ "lowat", &info.lowat, 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.bps", &info.play.bps, UINT, 0 },
{ "play.msb", &info.play.msb, UINT, 0 },
{ "play.encoding", &info.play.encoding, ENC, 0 },
{ "play.samples", &info.play.samples, UINT, READONLY },
{ "play.pause", &info.play.pause, UCHAR, 0 },
{ "play.active", &info.play.active, UCHAR, READONLY },
{ "play.block_size", &info.play.block_size, UINT, 0 },
{ "play.errors", &perrors, INT, 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.bps", &info.record.bps, UINT, 0 },
{ "record.msb", &info.record.msb, UINT, 0 },
{ "record.encoding", &info.record.encoding, ENC, 0 },
{ "record.samples", &info.record.samples, UINT, READONLY },
{ "record.pause", &info.record.pause, UCHAR, 0 },
{ "record.active", &info.record.active, UCHAR, READONLY },
{ "record.block_size", &info.record.block_size,UINT, 0 },
{ "record.errors", &rerrors, INT, READONLY },
{ 0 }
};
struct {
const char *ename;
u_int eno;
} encs[] = {
{ AudioEmulaw, AUDIO_ENCODING_ULAW },
{ "ulaw", AUDIO_ENCODING_ULAW },
{ AudioEalaw, AUDIO_ENCODING_ALAW },
{ AudioEslinear, AUDIO_ENCODING_SLINEAR },
{ "linear", AUDIO_ENCODING_SLINEAR },
{ AudioEulinear, AUDIO_ENCODING_ULINEAR },
{ AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE },
{ "linear_le", AUDIO_ENCODING_SLINEAR_LE },
{ AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE },
{ AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE },
{ "linear_be", AUDIO_ENCODING_SLINEAR_BE },
{ AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE },
{ 0 }
};
static struct {
const char *name;
u_int prop;
} props[] = {
{ "full_duplex", AUDIO_PROP_FULLDUPLEX },
{ "mmap", AUDIO_PROP_MMAP },
{ "independent", AUDIO_PROP_INDEPENDENT },
{ 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);
}
static void
prval(u_int format, void *valp)
{
u_int v;
const char *cm;
int i;
switch (format) {
case STRING:
fprintf(out, "%s", (char *)valp);
break;
case INT:
fprintf(out, "%d", *(int *)valp);
break;
case UINT:
fprintf(out, "%u", *(u_int *)valp);
break;
case XINT:
fprintf(out, "0x%x", *(u_int *)valp);
break;
case UCHAR:
fprintf(out, "%u", *(u_char *)valp);
break;
case P_R:
v = *(u_int *)valp;
cm = "";
if (v & AUMODE_PLAY) {
fprintf(out, "play");
cm = ",";
}
if (v & AUMODE_RECORD)
fprintf(out, "%srecord", cm);
break;
case ENC:
v = *(u_int *)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;
case PROPS:
v = *(u_int *)valp;
for (cm = "", i = 0; props[i].name; i++) {
if (v & props[i].prop) {
fprintf(out, "%s%s", cm, props[i].name);
cm = ",";
}
}
break;
default:
errx(1, "Invalid print format.");
}
}
void
prfield(struct field *p, const char *sep)
{
if (sep) {
fprintf(out, "%s", p->name);
if (p->flags & SET) {
fprintf(out, "%s", ": ");
prval(p->format, &p->oldval);
fprintf(out, " -> ");
} else
fprintf(out, "%s", sep);
}
prval(p->format, p->valp);
fprintf(out, "\n");
}
void
rdfield(struct field *p, char *q)
{
int i;
u_int u;
switch (p->format) {
case UINT:
p->oldval = *(u_int *)p->valp;
if (sscanf(q, "%u", (unsigned int *)p->valp) != 1) {
warnx("Bad number %s", q);
return;
}
break;
case UCHAR:
*(char *)&p->oldval = *(u_char *)p->valp;
if (sscanf(q, "%u", &u) != 1) {
warnx("Bad number %s", q);
return;
}
*(u_char *)p->valp = u;
break;
case XINT:
p->oldval = *(u_int *)p->valp;
if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 &&
sscanf(q, "%x", (unsigned int *)p->valp) != 1) {
warnx("Bad number %s", q);
return;
}
break;
case ENC:
p->oldval = *(u_int *)p->valp;
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);
return;
}
break;
default:
errx(1, "Invalid read format.");
}
p->flags |= SET;
}
void
getinfo(int fd)
{
int pos = 0, i = 0;
if (ioctl(fd, AUDIO_GETDEV, &adev) < 0)
err(1, "AUDIO_GETDEV");
for (;;) {
audio_encoding_t enc;
enc.index = i++;
if (ioctl(fd, AUDIO_GETENC, &enc) < 0)
break;
if (pos)
encbuf[pos++] = ',';
snprintf(encbuf+pos, sizeof(encbuf)-pos, "%s:%d:%d:%d%s",
enc.name, enc.precision, enc.bps, enc.msb,
enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : "");
pos += strlen(encbuf+pos);
}
if (ioctl(fd, AUDIO_GETFD, &fullduplex) < 0)
err(1, "AUDIO_GETFD");
if (ioctl(fd, AUDIO_GETPROPS, &properties) < 0)
err(1, "AUDIO_GETPROPS");
if (ioctl(fd, AUDIO_PERROR, &perrors) < 0)
err(1, "AUDIO_PERROR");
if (ioctl(fd, AUDIO_RERROR, &rerrors) < 0)
err(1, "AUDIO_RERROR");
if (ioctl(fd, AUDIO_GETINFO, &info) < 0)
err(1, "AUDIO_GETINFO");
}
void
usage(void)
{
extern char *__progname; /* from crt0.o */
fprintf(stderr,
"usage: %s [-an] [-f file]\n"
" %s [-n] [-f file] name ...\n"
" %s [-n] [-f file] name=value ...\n",
__progname, __progname, __progname);
exit(1);
}
int
main(int argc, char **argv)
{
int fd, i, ch;
int aflag = 0, canwrite, writeinfo = 0;
struct stat dstat, ostat;
struct field *p;
const char *file;
const char *sep = "=";
if ((file = getenv("AUDIOCTLDEVICE")) == 0 || *file == '\0')
file = "/dev/audioctl";
while ((ch = getopt(argc, argv, "af:nw")) != -1) {
switch (ch) {
case 'a':
aflag = 1;
break;
case 'w':
/* backward compatibility */
break;
case 'n':
sep = 0;
break;
case 'f':
file = optarg;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc == 0)
aflag = 1;
if ((fd = open(file, O_RDWR)) < 0) {
if ((fd = open(file, O_RDONLY)) < 0)
err(1, "%s", file);
canwrite = 0;
} else
canwrite = 1;
/* Check if stdout is the same device as the audio device. */
if (fstat(fd, &dstat) < 0)
err(1, "fstat au");
if (fstat(STDOUT_FILENO, &ostat) < 0)
err(1, "fstat stdout");
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 (!argc && !aflag)
usage();
getinfo(fd);
if (aflag) {
for (i = 0; fields[i].name; i++) {
if (!(fields[i].flags & ALIAS)) {
prfield(&fields[i], sep);
}
}
} else {
while (argc--) {
char *q;
if ((q = strchr(*argv, '=')) != NULL) {
*q++ = 0;
p = findfield(*argv);
if (p == 0)
warnx("field `%s' does not exist", *argv);
else {
if (!canwrite)
errx(1, "%s: permission denied",
*argv);
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");
}
writeinfo = 1;
}
} else {
p = findfield(*argv);
if (p == 0)
warnx("field %s does not exist", *argv);
else {
prfield(p, sep);
}
}
argv++;
}
if (writeinfo && ioctl(fd, AUDIO_SETINFO, &info) < 0)
err(1, "set failed");
getinfo(fd);
for (i = 0; fields[i].name; i++) {
if (fields[i].flags & SET) {
prfield(&fields[i], sep);
}
}
}
exit(0);
}