NetBSD-5.0.2/usr.bin/audio/ctl/ctl.c
/* $NetBSD: ctl.c,v 1.37 2008/04/28 20:24:12 martin Exp $ */
/*
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (augustss@NetBSD.org).
*
* 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: ctl.c,v 1.37 2008/04/28 20:24:12 martin Exp $");
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/audioio.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <paths.h>
#include "libaudio.h"
struct field *findfield (const char *name);
void prfield (struct field *p, const char *sep);
void rdfield (struct field *p, char *q);
void getinfo (int fd);
void audioctl_write (int, int, char *[]);
void usage (void);
int main (int argc, char **argv);
audio_device_t adev;
audio_info_t info;
char encbuf[1000];
int properties, fullduplex, rerror;
struct field {
const char *name;
void *valp;
int format;
#define STRING 1
#define INT 2
#define UINT 3
#define P_R 4
#define ULONG 5 /* XXX obsolete now */
#define UCHAR 6
#define ENC 7
#define PROPS 8
#define XINT 9
#define FORMAT 10
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 },
{ "properties", &properties, PROPS, READONLY },
{ "full_duplex", &fullduplex, UINT, 0 },
{ "fullduplex", &fullduplex, UINT, 0 },
{ "blocksize", &info.blocksize, UINT, 0 },
{ "hiwat", &info.hiwat, UINT, 0 },
{ "lowat", &info.lowat, UINT, 0 },
{ "monitor_gain", &info.monitor_gain, UINT, 0 },
{ "mode", &info.mode, P_R, READONLY },
{ "play", &info.play, FORMAT, ALIAS },
{ "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.balance", &info.play.balance, UCHAR, 0 },
{ "play.port", &info.play.port, XINT, 0 },
{ "play.avail_ports", &info.play.avail_ports, XINT, 0 },
{ "play.seek", &info.play.seek, UINT, 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 },
{ "play.buffer_size", &info.play.buffer_size, UINT, 0 },
{ "record", &info.record, FORMAT, ALIAS },
{ "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.balance", &info.record.balance, UCHAR, 0 },
{ "record.port", &info.record.port, XINT, 0 },
{ "record.avail_ports", &info.record.avail_ports,XINT, 0 },
{ "record.seek", &info.record.seek, UINT, 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.buffer_size", &info.record.buffer_size,UINT, 0 },
{ "record.errors", &rerror, INT, READONLY },
{ .name = NULL },
};
static struct {
const char *name;
u_int prop;
} props[] = {
{ "full_duplex", AUDIO_PROP_FULLDUPLEX },
{ "mmap", AUDIO_PROP_MMAP },
{ "independent", AUDIO_PROP_INDEPENDENT },
{ .name = NULL },
};
struct field *
findfield(name)
const 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(p, sep)
struct field *p;
const char *sep;
{
u_int v;
const char *cm, *encstr;
int i;
if (sep)
printf("%s%s", p->name, sep);
switch(p->format) {
case STRING:
printf("%s", (char*)p->valp);
break;
case INT:
printf("%d", *(int*)p->valp);
break;
case UINT:
printf("%u", *(u_int*)p->valp);
break;
case XINT:
printf("0x%x", *(u_int*)p->valp);
break;
case UCHAR:
printf("%u", *(u_char*)p->valp);
break;
case ULONG:
printf("%lu", *(u_long*)p->valp);
break;
case P_R:
v = *(u_int*)p->valp;
cm = "";
if (v & AUMODE_PLAY) {
if (v & AUMODE_PLAY_ALL)
printf("play");
else
printf("playsync");
cm = ",";
}
if (v & AUMODE_RECORD)
printf("%srecord", cm);
break;
case ENC:
v = *(u_int*)p->valp;
encstr = audio_enc_from_val(v);
if (encstr)
printf("%s", encstr);
else
printf("%u", v);
break;
case PROPS:
v = *(u_int*)p->valp;
for (cm = "", i = 0; props[i].name; i++) {
if (v & props[i].prop) {
printf("%s%s", cm, props[i].name);
cm = ",";
}
}
break;
case FORMAT:
prfield(p + 1, 0);
printf(",");
prfield(p + 3, 0);
printf(",");
prfield(p + 4, 0);
printf(",");
prfield(p + 5, 0);
break;
default:
errx(1, "Invalid print format.");
}
}
void
rdfield(p, q)
struct field *p;
char *q;
{
int enc;
u_int u;
char *s;
switch(p->format) {
case UINT:
if (sscanf(q, "%u", (unsigned int *)p->valp) != 1)
errx(1, "Bad number: %s", q);
break;
case UCHAR:
if (sscanf(q, "%u", &u) != 1)
errx(1, "Bad number: %s", q);
else
*(u_char *)p->valp = u;
break;
case XINT:
if (sscanf(q, "0x%x", (unsigned int *)p->valp) != 1 &&
sscanf(q, "%x", (unsigned int *)p->valp) != 1)
errx(1, "Bad number: %s", q);
break;
case ENC:
enc = audio_enc_to_val(q);
if (enc >= 0)
*(u_int*)p->valp = enc;
else
errx(1, "Unknown encoding: %s", q);
break;
case FORMAT:
s = strsep(&q, ",");
if (s)
rdfield(p + 1, s);
s = strsep(&q, ",");
if (s)
rdfield(p + 3, s);
s = strsep(&q, ",");
if (s)
rdfield(p + 4, s);
s = strsep(&q, ",");
if (s)
rdfield(p + 5, s);
if (!s || q)
errx(1, "Bad format");
break;
default:
errx(1, "Invalid read format.");
}
p->flags |= SET;
}
void
getinfo(fd)
int fd;
{
int pos, i;
if (ioctl(fd, AUDIO_GETDEV, &adev) < 0)
err(1, "AUDIO_GETDEV");
for (pos = 0, i = 0; ; i++) {
audio_encoding_t enc;
enc.index = i;
if (ioctl(fd, AUDIO_GETENC, &enc) < 0)
break;
if (pos >= sizeof(encbuf)-1)
break;
if (pos)
encbuf[pos++] = ',';
if (pos >= sizeof(encbuf)-1)
break;
pos += snprintf(encbuf+pos, sizeof(encbuf)-pos, "%s:%d%s",
enc.name, enc.precision,
enc.flags & AUDIO_ENCODINGFLAG_EMULATED ? "*" : "");
}
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_RERROR, &rerror) < 0)
err(1, "AUDIO_RERROR");
if (ioctl(fd, AUDIO_GETINFO, &info) < 0)
err(1, "AUDIO_GETINFO");
}
void
usage()
{
const char *prog = getprogname();
fprintf(stderr, "Usage: %s [-d file] [-n] name ...\n", prog);
fprintf(stderr, "Usage: %s [-d file] [-n] -w name=value ...\n", prog);
fprintf(stderr, "Usage: %s [-d file] [-n] -a\n", prog);
exit(1);
}
int
main(argc, argv)
int argc;
char **argv;
{
int fd, i, ch;
int aflag = 0, wflag = 0;
const char *deffile = _PATH_AUDIOCTL;
const char *file;
const char *sep = "=";
file = getenv("AUDIOCTLDEVICE");
if (file == NULL)
file = deffile;
while ((ch = getopt(argc, argv, "ad:f:nw")) != -1) {
switch(ch) {
case 'a':
aflag++;
break;
case 'w':
wflag++;
break;
case 'n':
sep = 0;
break;
case 'f': /* compatibility */
case 'd':
file = optarg;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
fd = open(file, O_WRONLY);
if (fd < 0)
fd = open(file, O_RDONLY);
if (fd < 0 && file == deffile) {
file = _PATH_AUDIOCTL0;
fd = open(file, O_WRONLY);
if (fd < 0)
fd = open(file, O_RDONLY);
}
if (fd < 0)
err(1, "%s", file);
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);
printf("\n");
}
}
} else if (argc > 0 && !aflag) {
if (wflag) {
audioctl_write(fd, argc, argv);
if (sep) {
getinfo(fd);
for (i = 0; fields[i].name; i++) {
if (fields[i].flags & SET) {
printf("%s: -> ", fields[i].name);
prfield(&fields[i], 0);
printf("\n");
}
}
}
} else {
struct field *p;
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);
printf("\n");
}
argv++;
}
}
} else
usage();
exit(0);
}
void
audioctl_write(fd, argc, argv)
int fd;
int argc;
char *argv[];
{
struct field *p;
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");
}