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/* $Aumix: aumix/src/common.c,v 1.23 2010/05/06 03:36:47 trevor Exp $
*
* aumix: adjust audio mixer
* copyright (c) 1993, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2008
* the authors--see AUTHORS file
*
* This file is part of aumix.
*
* Aumix is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* Aumix is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* aumix; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307, USA.
*/
#define EXTERN
#include "common.h"
#ifdef HAVE_CURSES
#include "curses.h"
#include "gpm-xterm.h"
#endif /* HAVE_CURSES */
#if defined (HAVE_GTK)
#include "gtk.h"
#endif /* HAVE_GTK */
#include "interactive.h"
FILE *OpenDefaultFile(char *mode);
FILE *setfile;
char *save_filename = NULL; /* name of file for saved settings */
char *device_filename = "/dev/mixer"; /* name of mixer device file */
unsigned short setfile_opened = FALSE, setfile_write_perm = FALSE, setfile_read_perm = FALSE;
int current_dev = 0, mixer_fd = -1, mutelevel[SOUND_MIXER_NRDEVICES], devmask = 0, recmask = 0, recsrc = 0, stereodevs = 0, mutestate = 0, interactive = FALSE;
#ifdef USE_OWN_LABELS
/* This is to ease translation--don't use if this copy of aumix is very old.
* These labels correspond to the soundcard.h from Linux 2.3.12 or FreeBSD
* 3.2-19990713-STABLE. The point of having our own copy of these
* macros is to make it possible to include translations of them.
* The danger is that they won't always correspond to the sound
* driver in the kernel.
*/
/* There's probably not enough left to copyright, but...
* Copyright by Hannu Savolainen 1993
*
* 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 AUTHOR 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 AUTHOR
* 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.
*/
char *dev_label[SOUND_MIXER_NRDEVICES] =
{
LOCAL_TEXT_NOOP("Volume "),
LOCAL_TEXT_NOOP("Bass "),
LOCAL_TEXT_NOOP("Treble "),
LOCAL_TEXT_NOOP("Synth "),
LOCAL_TEXT_NOOP("PCM "),
LOCAL_TEXT_NOOP("Speaker "),
LOCAL_TEXT_NOOP("Line "),
LOCAL_TEXT_NOOP("Mic "),
LOCAL_TEXT_NOOP("CD "),
LOCAL_TEXT_NOOP("Mix "),
LOCAL_TEXT_NOOP("PCM 2 "),
LOCAL_TEXT_NOOP("Record "),
LOCAL_TEXT_NOOP("Input "),
LOCAL_TEXT_NOOP("Output "),
LOCAL_TEXT_NOOP("Line 1 "),
LOCAL_TEXT_NOOP("Line 2 "),
LOCAL_TEXT_NOOP("Line 3 "),
LOCAL_TEXT_NOOP("Digital1"),
LOCAL_TEXT_NOOP("Digital2"),
LOCAL_TEXT_NOOP("Digital3"),
LOCAL_TEXT_NOOP("Phone In"),
LOCAL_TEXT_NOOP("PhoneOut"),
LOCAL_TEXT_NOOP("Video "),
LOCAL_TEXT_NOOP("Radio "),
LOCAL_TEXT_NOOP("Monitor ")
};
#else
char *dev_label[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS;
#endif /* USE_OWN_LABELS */
char *dev_name[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_NAMES;
/*
An index into this array gives the device number for the
corresponding command-line option.
*/
char *moptindx = "vbtswplmcxWrio123";
char *mopt;
char *scheme_name;
extern char *optarg;
int usage_ok = 1;
int main(int argc, char *argv[])
{
int optn, ii;
#ifdef HAVE_CURSES
int setcolors = FALSE;
#endif /* HAVE_CURSES */
/* Internationalization */
#ifdef ENABLE_NLS
I18nInitialize();
#endif /* ENABLE_NLS */
/* interactive will be set to FALSE if
* non-interactive command line options are specified */
interactive = IN_UNSPECIFIED;
#ifdef __linux__
if (access(device_filename, F_OK) != 0)
device_filename = "/dev/sound/mixer";
#endif
/* Get options from the command line. Using numbers as options is deprecated,
but we do it anyway because it makes sense for line1, line2 and line3.
*/
while (TRUE) {
#if defined(HAVE_CURSES) && defined(HAVE_GTK) && defined(optional_argument)
/* optional_argument is a GLIBC extension */
/* -C takes _optional_ argument. No arg forces curses mode. */
optn = getopt(argc, argv, "hILqSd:f:C::v:b:t:s:w:P:p:l:m:c:x:W:R:r:i:o:1:2:3:");
#else
optn = getopt(argc, argv, "hILqSd:f:C:v:b:t:s:w:P:p:l:m:c:x:W:R:r:i:o:1:2:3:");
#endif
if (optn == -1)
break;
/* Funny, strchr() returns a pointer to char, according to the man page,
but without this cast egcs warns "assignment makes pointer from integer without
a cast". */
if ((mopt = (char *) strchr(moptindx, optn))) {
usage_ok = 0;
if (interactive == IN_UNSPECIFIED) interactive = FALSE;
if (mixer_fd == -1)
ErrorExitWarn(InitializeMixer(device_filename), 'e');
ErrorExitWarn(SetShowNoninter(mopt - moptindx), 'e');
} else {
usage_ok = 0;
switch (optn) {
case 'q': /* query */
optarg = "q";
if (interactive == IN_UNSPECIFIED)
interactive = FALSE;
if (mixer_fd == -1)
ErrorExitWarn(InitializeMixer(device_filename), 'e');
for (ii = 0; ii < SOUND_MIXER_NRDEVICES; ii++) {
if ((1 << ii) & (devmask | recmask))
ErrorExitWarn(SetShowNoninter(ii), 'e');
}
break;
case 'd': /* User specified the device file. */
device_filename = strdup(optarg);
ErrorExitWarn(InitializeMixer(device_filename), 'e');
break;
case 'f': /* User specified the save file. */
save_filename = strdup(optarg);
break;
#ifdef HAVE_CURSES /* no color schemes for GTK+ */
case 'C': /* User specified the color scheme. */
if (optarg) { /* scheme specified? */
scheme_name = strdup(optarg);
setcolors = TRUE;
} else {
/* handle space between -C and scheme */
if (argv[optind] &&
*argv[optind] &&
*argv[optind] != '-') {
optarg = argv[optind++];
}
}
interactive = IN_CURSES;
break;
#endif /* HAVE_CURSES */
case 'S': /* Save to file. */
if (interactive == IN_UNSPECIFIED)
interactive = FALSE;
if (mixer_fd == -1)
ErrorExitWarn(InitializeMixer(device_filename), 'e');
ErrorExitWarn(SaveSettings(), 'e');
break;
case 'L': /* Load from file. */
if (interactive == IN_UNSPECIFIED)
interactive = FALSE;
if (mixer_fd == -1)
ErrorExitWarn(InitializeMixer(device_filename), 'e');
ErrorExitWarn(LoadSettings(), 'e');
break;
#if defined (HAVE_CURSES) || defined (HAVE_GTK)
case 'I': /* User asked for interactive mode. */
if ((interactive == FALSE) || (interactive == IN_UNSPECIFIED))
interactive = IN_ANY;
break;
#endif /* HAVE_CURSES || HAVE_GTK */
case 'h': /* Show help. */
Usage(EXIT_SUCCESS);
break;
default: /* Show help. */
Usage(EXIT_FAILURE);
}
}
}
#if defined (HAVE_CURSES) || defined (HAVE_GTK)
/* Be interactive if no options specifying otherwise were given. */
if (interactive == IN_UNSPECIFIED)
interactive = IN_ANY;
/* By now we've decided whether to go interactive.
The -C (color scheme) option implies curses, even if GTK is available.
*/
if (interactive == IN_ANY) {
#if defined (HAVE_GTK)
char *env_display;
/* ignore DISPLAY if it is set, but empty */
if ((env_display = getenv("DISPLAY")) && (*env_display != '\0'))
interactive = IN_GTK;
#endif /* HAVE_GTK */
#ifdef HAVE_CURSES
if (interactive == IN_ANY)
interactive = IN_CURSES;
#endif /* HAVE_CURSES */
}
#endif /* HAVE_CURSES || HAVE_GTK */
/* By now, interactive is not IN_ANY. It is IN_GTK only if DISPLAY is set,
and otherwise defaults to IN_CURSES. Since interactive contains the right
value, it should not be changed any more.
*/
#if defined (HAVE_GTK)
/* GTK+ stuff */
if (interactive == IN_GTK) {
#ifdef HAVE_GTK /* GTK+ 2.X only */
/* Use UTF8 format even if the locale is non-UTF8. */
bind_textdomain_codeset (PACKAGE, "UTF-8");
#endif
#ifndef DUMMY_MIXER
if ((mixer_fd = open(device_filename, O_RDWR)) < 0)
ErrorExitWarn(EOPENMIX, 'e');
#endif /* DUMMY_MIXER */
ErrorExitWarn(MixerStatus(), 'e');
if (!devmask)
ErrorExitWarn(EFINDDEVICE, 'e');
gtk_init(&argc, &argv);
InitScreenGTK();
gtk_main();
return 0;
}
#endif /* HAVE_GTK */
if (!interactive) {
if (usage_ok && optn == -1)
Usage(EXIT_SUCCESS);
}
if (mixer_fd == -1)
ErrorExitWarn(InitializeMixer(device_filename), 'e');
#if HAVE_CURSES
if (interactive == IN_CURSES) {
InitCurses();
if (setcolors == TRUE)
ErrorExitWarn(InitColors(scheme_name), 'e');
else
SetDefaultColors();
InitScreen();
StartMouse();
Inter();
Gpm_Close();
#endif /* HAVE_CURSES */
close(mixer_fd);
#if HAVE_CURSES
CloseScreen();
}
#endif /* HAVE_CURSES */
exit(EXIT_SUCCESS);
}
void ErrorExitWarn(int error, int mode)
{
/* Print error messages. If mode is "e", bail out. */
char string[80];
const char *errorlist[] =
{LOCAL_TEXT_NOOP("aumix: error opening mixer"), LOCAL_TEXT_NOOP("aumix: no device found"), " aumix: SOUND_MIXER_READ_DEVMASK", " aumix: SOUND_MIXER_READ_RECMASK", "aumix: SOUND_MIXER_READ_RECSRC", "aumix: SOUND_MIXER_READ_STEREODEVS", "aumix: SOUND_MIXER_WRITE_RECSRC", "aumix: MIXER_READ", "aumix: MIXER_WRITE", LOCAL_TEXT_NOOP("aumix: mixer not open"), LOCAL_TEXT_NOOP("aumix: unable to open settings file")};
if (!error)
return;
#if HAVE_CURSES
/* Only close screen for curses; GTK+ has not yet been initialized.
XXX Why the difference in program flow?
*/
if ((mode == 'e') && (interactive == IN_CURSES))
CloseScreen();
#endif /* HAVE_CURSES */
if (error > 12) {
sprintf(string, LOCAL_TEXT("aumix: unknown error %i"), error);
perror(string);
} else if (error > 0) {
perror(LOCAL_TEXT(errorlist[error - 1]));
}
fprintf(stderr, "\n");
if (mode == 'e') /* exit */
exit(EXIT_FAILURE);
else
return; /* warn */
}
int LoadSettings(void)
{
/* Read settings from file.
We depend on the 'mixer' file descriptor having been set
(and not clobbered) before entering this routine.
*/
char textline[80], tmpstring[80], recplay;
int tmp, ii, left, right;
setfile = OpenDefaultFile("r");
if (setfile == NULL)
return EFILE;
while (fgets(textline, 80, setfile) != NULL) {
(void) sscanf(textline, "%[^:;, ]%*[:;, ]%10u%*[:;, ]%3u%*[:;, ]%1c\n", tmpstring, &left, &right, &recplay);
if (!strcmp(tmpstring, "wait")) {
if (!interactive)
printf(LOCAL_TEXT("%i ms wait\n"), left);
usleep(left * 1000);
} else {
for (ii = 0; ii < SOUND_MIXER_NRDEVICES; ii++) {
/* Cycle through names of channels, looking for matches. */
if (!strcmp(tmpstring, dev_name[ii])) {
left = (left > MAXLEVEL) ? MAXLEVEL : left;
left = (left < 0) ? 0 : left;
right = (right > MAXLEVEL) ? MAXLEVEL : right;
right = (right < 0) ? 0 : right;
tmp = left + (right << 8);
if ((SOUND_IOCTL(mixer_fd, MIXER_WRITE(ii), &tmp) == -1) && !interactive) {
printf("%s %s\n", dev_name[ii], LOCAL_TEXT("not set"));
} else {
if (!interactive)
printf("%s %s %i, %i", dev_name[ii], LOCAL_TEXT("set to"), left, right);
if ((1 << ii) & recmask) {
ErrorExitWarn(ReadRecSrc(), 'e');
recsrc = (recplay == 'R') ? recsrc | (1 << ii) : recsrc & ~(1 << ii);
ErrorExitWarn(WriteRecSrc(), 'e');
if (!interactive)
printf(", %c", recplay);
}
if (!interactive)
printf("\n");
}
}
}
}
}
fclose(setfile);
return 0;
}
int SaveSettings(void)
{
/* Write settings to file.
We depend on the 'mixer' file descriptor having been set
(and not clobbered) before entering this routine.
*/
int tmp, ii;
setfile = OpenDefaultFile("w");
if (setfile == NULL)
return EFILE;
ErrorExitWarn(ReadRecSrc(), 'e');
for (ii = 0; ii < SOUND_MIXER_NRDEVICES; ii++) {
if ((1 << ii) & (devmask | recmask)) {
ErrorExitWarn(ReadLevel(ii, &tmp), 'e');
fprintf(setfile, "%s:%i:%i:%c\n", dev_name[ii], (tmp & 0xFF), ((tmp >> 8) & 0xFF), ((1 << ii) & recsrc ? 'R' : 'P'));
}
}
if (fclose(setfile))
return EFILE;
return 0;
}
int InitializeMixer(char *device_filename)
{
/* Initialize the mixer.
Global:
mixer_fd = mixer file descriptor reference number
Return values:
Success: 0
Failure:
EOPENMIX trouble opening mixer device
EFINDDEVICE no device found
EREADDEV SOUND_MIXER_READ_DEVMASK
EREADRECMASK SOUND_MIXER_READ_RECMASK
EREADRECSRC SOUND_MIXER_READ_RECSRC
EREADSTEREO SOUND_MIXER_READ_STEREODEVS
*/
#ifdef HAVE_ALSA
AlsaUnmute();
#endif /* HAVE_ALSA */
#ifndef DUMMY_MIXER
if ((mixer_fd = open(device_filename, O_RDWR)) < 0)
return EOPENMIX;
#endif /* DUMMY_MIXER */
ErrorExitWarn(MixerStatus(), 'e');
if (!devmask)
return EFINDDEVICE;
return 0;
}
int MixerStatus(void)
{
/* Get status of the mixer.
Global:
mixer_fd = mixer file descriptor reference number
Bit masks indicating:
devmask = devices with adjustable levels
recmask = valid input devices
recsrc = devices currently selected for input
stereodevs = stereo devices
*/
/*
"If an error has occurred, a value of -1 is returned and errno is set to indicate the error."
--ioctl(2), FreeBSD System Calls Manual, Joseph Koshy
"On success, zero is returned. On error, -1 is returned, and errno is set appropriately."
--ioctl(2), Linux Programmer's Manual, Rik Faith and Eric S. Raymond
Robert Siemer says that on his Linux system the SOUND_MIXER_READ_DEVMASK ioctl returns a large positive value.
*/
if (SOUND_IOCTL(mixer_fd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1)
return EREADDEV;
if (SOUND_IOCTL(mixer_fd, SOUND_MIXER_READ_RECMASK, &recmask) == -1)
return EREADRECMASK;
ErrorExitWarn(ReadRecSrc(), 'e');
if (SOUND_IOCTL(mixer_fd, SOUND_MIXER_READ_STEREODEVS, &stereodevs) == -1)
return EREADSTEREO;
return 0;
}
int WriteLevel(int device, int leftright)
{
if (SOUND_IOCTL(mixer_fd, MIXER_WRITE(device), &leftright) == -1)
return EWRITEMIX;
return 0;
}
int ReadLevel(int device, int *leftright)
{
if (SOUND_IOCTL(mixer_fd, MIXER_READ(device), leftright) == -1)
return EREADMIX;
return 0;
}
int WriteRecSrc(void)
{
if (SOUND_IOCTL(mixer_fd, SOUND_MIXER_WRITE_RECSRC, &recsrc) == -1)
return EWRITERECSRC;
return 0;
}
int ReadRecSrc(void)
{
if (SOUND_IOCTL(mixer_fd, SOUND_MIXER_READ_RECSRC, &recsrc) == -1)
return EREADRECSRC;
return 0;
}
#if 0
int ReadWriteMixer(int device, char *rw, int *left, int *right, char *rp)
{
/* Read or write settings.
* Global:
*
* mixer_fd = mixer file descriptor reference number
*
* Bit masks indicating:
*
* devmask = devices with adjustable levels
* recmask = valid input devices
* recsrc = devices currently selected for input
* stereodevs = stereo devices
*
* Input:
*
* device = index into the array of mixer devices
* rw = r - read : w - write
* left = left channel setting
* right = right channel setting
* rp = r - record : p - play
*
*
* Output:
*
* left = left channel setting
* right = right channel setting
* rp = r - record : p - play
*
* Return:
*
* success: = 0
* failure: = 7 SOUND_MIXER_WRITE_RECSRC
* failure: = 8 MIXER_READ
* failure: = 9 MIXER_WRITE
* failure: = 10 mixer not open
*/
int rightleft, result;
if (mixer_fd == -1) /* We haven't opened the mixer. */
return ENOTOPEN;
result = MixerStatus();
if (result)
return result;
/* Is the given device index valid? */
if (!((1 << device) & (devmask | recmask)))
return 0;
/* Read settings. */
if (((1 << device) & devmask) & (*rw == 'r') {
ErrorExitWarn(ReadLevel(device, &rightleft), 'e');
/* Unpack left and right settings. */
if ((1 << device) & stereodevs) {
*right = ((rightleft >> 8) & 0xFF);
*left = rightleft & 0xFF;
} else {
*right = ((rightleft >> 8) & 0xFF);
*left = rightleft & 0xFF;
}
/* Can the current device be a recording source? */
if ((1 << device) & recmask) {
*rp = (1 << device) & recsrc ? 'R' : 'P';
} else {
*rp = '\0';
}
} else {
/* "But it's got 11, so it *must* be louder." */
*left = (*left > MAXLEVEL) ? MAXLEVEL : *left;
*left = (*left < 0) ? 0 : *left;
*right = (*right > MAXLEVEL) ? MAXLEVEL : *right;
*right = (*right < 0) ? 0 : *right;
/* Pack left and right settings for writing. */
rightleft = *left + (*right << 8);
/* Write settings. */
ErrorExitWarn(WriteLevel(device, rightleft), 'e');
}
/* Is the current device capable of being a recording source? */
if ((1 << device) & recmask) {
*rp = *rp & 0xDF;
if (*rp == 'R') {
recsrc = recsrc | (1 << device);
} else {
recsrc = recsrc & ~(1 << device);
*rp = 'P';
}
/* Set recording or playing mode. */
ErrorExitWarn(WriteRecSrc(), 'e');
} else {
*rp = '\0';
}
return 0;
}
#endif /* 0 */
int CountChannels(int limit)
{
/* How many mixing channels are less than limit? */
int ii, y = 0;
for (ii = 0; ii < limit; ii++)
if ((devmask | recmask) & (1 << ii))
y++;
return y;
}
FILE *CheckAndOpen(const char *filename, const char *mode)
{
/* Check whether *filename is a directory, and if not, call fopen on it.
CheckAndOpen() is meant to be a drop-in replacement for fopen().
*/
struct stat s;
int result;
/* fopen will fail if mode=='w' and filename is a directory, so we
* only need to check the mode=='r' case */
if (*mode == 'r') {
result = stat(filename, &s);
if (result != 0) return NULL; /* stat() failed */
if (S_ISDIR(s.st_mode)) return NULL; /* is a directory, so bail */
}
return fopen(filename, mode);
}
FILE *OpenDefaultFile(char *mode)
{
/* Open the settings file for reading or writing.
Try first ${HOME}/.AUMIXRC, then AUMIXRC_PATH/AUMIXRC;
become an error generator if neither can be opened.
Input:
mode should be either 'r' (read) or 'w' (write)
Return:
Success: pointer to the default settings file structure
Failure: NULL
*/
FILE *setfile;
char *home;
char filename[PATH_MAX];
if (save_filename == NULL) {
home = getenv("HOME");
if (home && ((strlen(home) + strlen(AUMIXRC) + 2) < PATH_MAX)) {
sprintf(filename, "%s/.%s", home, AUMIXRC);
setfile = CheckAndOpen(filename, mode);
}
if (setfile == NULL) {
if ((strlen(AUMIXRC_PATH) + strlen(AUMIXRC) + 1) < PATH_MAX) {
sprintf(filename, "%s/%s", AUMIXRC_PATH, AUMIXRC);
setfile = CheckAndOpen(filename, mode);
}
}
if (setfile == NULL) {
return NULL;
}
} else
setfile = CheckAndOpen(save_filename, mode);
return setfile;
}
int SetShowNoninter(int dev)
{
/* Change or display settings from the command line. */
char *devstr;
char dest[4];
int change = 0, tmp, left, right;
/* Increase or decrease levels, optionally by a number. */
if (!strncmp(optarg, "+", 1) || !strncmp(optarg, "-", 1)) {
ErrorExitWarn(ReadLevel(dev, &tmp), 'e');
right = tmp >> 8; /* I'll take the high byte, */
left = tmp & 0xFF; /* and you take the low byte. */
memset(dest, 0, sizeof(dest));
strncpy(dest, (optarg + 1), 3);
change = 1; /* For compatibility with versions 1.15 to 1.17, assume one if no number was given. */
if (atoi(dest))
change = atoi(dest);
if (*optarg == '+') { /* increase */
right += change;
left += change;
right = (right > MAXLEVEL) ? MAXLEVEL : right;
left = (left > MAXLEVEL) ? MAXLEVEL : left;
} else { /* decrease */
left -= change;
right -= change;
left = (left < 0) ? 0 : left;
right = (right < 0) ? 0 : right;
}
tmp = left + (right << 8);
ErrorExitWarn(WriteLevel(dev, tmp), 'e'); /* Try to write new settings to the mixer. */
return 0;
}
if ((*optarg == 'R') || (*optarg == 'P')) {
if ((1 << dev) & recmask) {
recsrc = (*optarg == 'R') ? recsrc | (1 << dev) : recsrc & ~(1 << dev);
ErrorExitWarn(WriteRecSrc(), 'e');
}
return 0;
}
if ((*optarg == 'q') || (*optarg == ' ')) {
devstr = dev_name[dev];
ErrorExitWarn(ReadLevel(dev, &tmp), 'e');
printf("%s %i, %i", dev_name[dev], (tmp & 0xFF), ((tmp >> 8) & 0xFF));
if ((1 << (dev)) & recmask) {
ErrorExitWarn(ReadRecSrc(), 'e');
printf(", %c", ((1 << dev) & recsrc ? 'R' : 'P'));
}
printf("\n");
} else {
tmp = atoi(optarg);
tmp = (tmp > MAXLEVEL) ? MAXLEVEL : tmp;
tmp = (tmp < 0) ? 0 : 257 * tmp;
ErrorExitWarn(WriteLevel(dev, tmp), 'e');
}
return 0;
}
void Usage(int status)
{
FILE *fp;
/* These declarations are for embedding the copyright and version information in the binary for display by utilities such as what(1). They needn't be translated. */
static char version[] = "@(#) aumix " VERSION "\n";
static char copyright[] =
"@(#) copyright (c) 1993, 1996-2010 the authors--see AUTHORS file\n";
fp = (status == EXIT_SUCCESS) ? stdout : stderr;
fprintf(fp, LOCAL_TEXT("aumix %s usage: aumix [-<channel option>[[+|-][<amount>]]|<level>|\nR[ecord]|P[lay]|q[uery]]"), VERSION);
#if defined(HAVE_CURSES) || defined(HAVE_GTK)
fprintf(fp, LOCAL_TEXT(" [-dhILqS]"));
#else
fprintf(fp, LOCAL_TEXT(" [-dhLqS]"));
#endif
#if defined(HAVE_CURSES)
fprintf(fp, LOCAL_TEXT(" [-C <color scheme file>]"));
#endif
fprintf(fp, LOCAL_TEXT(" [-f <rc file>]"));
fprintf(fp, "\n\n");
fprintf(fp, LOCAL_TEXT("\
channel options:\n\
v: main volume x: mix monitor\n\
b: bass W: PCM 2\n\
t: treble r: record\n\
s: synthesizer i: input gain\n\
w: PCM o: output gain\n\
p: PC speaker 1: line 1\n\
l: line 2: line 2\n\
m: microphone 3: line 3\n\
c: CD\n\n\
other options:\n"));
#ifdef HAVE_CURSES
fprintf(fp, LOCAL_TEXT("\
C: start in curses mode (and optionally specify color scheme)\n"));
#endif /* HAVE_CURSES */
fprintf(fp, LOCAL_TEXT("\
d: adjust a device besides /dev/mixer\n\
f: specify file for saving and loading settings (defaults to\n\
~/.aumixrc or /etc/aumixrc)\n\
h: this helpful message\n"));
#if defined(HAVE_CURSES) || defined(HAVE_GTK)
fprintf(fp, LOCAL_TEXT("\
I: start in interactive mode after doing non-interactive functions\n"));
#endif /* HAVE_CURSES || HAVE_GTK */
fprintf(fp, LOCAL_TEXT("\
L: load settings\n\
q: query all channels and print their settings\n\
S: save settings\n"));
exit(status);
}
/* Initialize I18N. The initialization amounts to invoking
setlocale(), bindtextdomain() and textdomain().
Does nothing if NLS is disabled or missing. */
void I18nInitialize(void)
{
/*
* If ENABLE_NLS is defined, assume the existence of the three functions invoked here.
*/
#ifdef ENABLE_NLS
/* Set the current locale. */
setlocale(LC_ALL, "");
/* Set the text message domain. */
bindtextdomain((char *) PACKAGE, LOCALEDIR);
textdomain((char *) PACKAGE);
#endif /* ENABLE_NLS */
}
#ifdef HAVE_ALSA
/* Unmuting "hardware mute" in ALSA driver. Currently unmuting is done only
for the first sound system. Although it could be done without the library,
this code requires alsa-lib.
*/
void AlsaUnmute(void)
{
int channel;
snd_mixer_channel_t cdata =
{0};
static snd_mixer_info_t mixer_info =
{0};
static int card_id = 0;
static int mixer_id = 0;
static void *mixer_handle;
static struct snd_ctl_hw_info hw_info;
void *ctl_handle;
if (!snd_mixer_open(&mixer_handle, card_id, mixer_id)) {
snd_mixer_info(mixer_handle, &mixer_info);
channel = snd_mixer_channels(mixer_handle);
while (channel >= 0) {
snd_mixer_channel_read(mixer_handle, channel, &cdata);
/* Turn off hardware mute for all channels. */
cdata.flags &= ~SND_MIXER_FLG_MUTE_LEFT;
cdata.flags &= ~SND_MIXER_FLG_MUTE_RIGHT;
snd_mixer_channel_write(mixer_handle, channel, &cdata);
--channel;
}
snd_mixer_close(mixer_handle);
}
}
#endif /* HAVE_ALSA */
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