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/*
* Advanced Linux Sound Architecture Control Program
* Copyright (c) by Abramo Bagnara <abramo@alsa-project.org>
* Jaroslav Kysela <perex@perex.cz>
*
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "aconfig.h"
#include "version.h"
#include <getopt.h>
#include <stdarg.h>
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include <alsa/asoundlib.h>
#include "alsactl.h"
#ifndef SYS_ASOUNDRC
#define SYS_ASOUNDRC "/var/lib/alsa/asound.state"
#endif
int debugflag = 0;
int force_restore = 1;
int ignore_nocards = 0;
char *command;
char *statefile = NULL;
static void help(void)
{
printf("Usage: alsactl <options> command\n");
printf("\nAvailable global options:\n");
printf(" -h,--help this help\n");
printf(" -d,--debug debug mode\n");
printf(" -v,--version print version of this program\n");
printf("\nAvailable state options:\n");
printf(" -f,--file # configuration file (default " SYS_ASOUNDRC ")\n");
printf(" -F,--force try to restore the matching controls as much as possible\n");
printf(" (default mode)\n");
printf(" -g,--ignore ignore 'No soundcards found' error\n");
printf(" -P,--pedantic do not restore mismatching controls (old default)\n");
printf(" -I,--no-init-fallback\n"
" don't initialize even if restore fails\n");
printf(" -r,--runstate # save restore and init state to this file (only errors)\n");
printf(" default settings is 'no file set'\n");
printf(" -R,--remove remove runstate file at first, otherwise append errors\n");
printf("\nAvailable init options:\n");
printf(" -E,--env #=# set environment variable for init phase (NAME=VALUE)\n");
printf(" -i,--initfile # main configuation file for init phase (default " DATADIR "/init/00main)\n");
printf("\n");
printf("\nAvailable commands:\n");
printf(" store <card #> save current driver setup for one or each soundcards\n");
printf(" to configuration file\n");
printf(" restore <card #> load current driver setup for one or each soundcards\n");
printf(" from configuration file\n");
printf(" init <card #> initialize driver to a default state\n");
}
int main(int argc, char *argv[])
{
static const struct option long_option[] =
{
{"help", 0, NULL, 'h'},
{"file", 1, NULL, 'f'},
{"env", 1, NULL, 'E'},
{"initfile", 1, NULL, 'i'},
{"no-init-fallback", 0, NULL, 'I'},
{"force", 0, NULL, 'F'},
{"ignore", 0, NULL, 'g'},
{"pedantic", 0, NULL, 'P'},
{"runstate", 0, NULL, 'r'},
{"remove", 0, NULL, 'R'},
{"debug", 0, NULL, 'd'},
{"version", 0, NULL, 'v'},
{NULL, 0, NULL, 0},
};
static const char *const devfiles[] = {
"/dev/snd/controlC",
"/dev/snd/pcmC",
"/dev/snd/midiC",
"/dev/snd/hwC",
NULL
};
char *cfgfile = SYS_ASOUNDRC;
char *initfile = DATADIR "/init/00main";
char *cardname, ncardname[16];
const char *const *tmp;
int removestate = 0;
int init_fallback = 1; /* new default behavior */
int res;
command = argv[0];
while (1) {
int c;
if ((c = getopt_long(argc, argv, "hdvf:FgE:i:IPr:R", long_option, NULL)) < 0)
break;
switch (c) {
case 'h':
help();
return EXIT_SUCCESS;
case 'f':
cfgfile = optarg;
break;
case 'F':
force_restore = 1;
break;
case 'g':
ignore_nocards = 1;
break;
case 'E':
if (putenv(optarg)) {
fprintf(stderr, "environment string '%s' is wrong\n", optarg);
return EXIT_FAILURE;
}
break;
case 'i':
initfile = optarg;
break;
case 'I':
init_fallback = 0;
break;
case 'r':
statefile = optarg;
break;
case 'R':
removestate = 1;
break;
case 'P':
force_restore = 0;
break;
case 'd':
debugflag = 1;
break;
case 'v':
printf("alsactl version " SND_UTIL_VERSION_STR "\n");
return EXIT_SUCCESS;
case '?': // error msg already printed
help();
return EXIT_FAILURE;
break;
default: // should never happen
fprintf(stderr,
"Invalid option '%c' (%d) not handled??\n", c, c);
}
}
if (argc - optind <= 0) {
fprintf(stderr, "alsactl: Specify command...\n");
return 0;
}
cardname = argc - optind > 1 ? argv[optind + 1] : NULL;
for (tmp = devfiles; cardname != NULL && *tmp != NULL; tmp++) {
int len = strlen(*tmp);
if (!strncmp(cardname, *tmp, len)) {
long l = strtol(cardname + len, NULL, 0);
sprintf(ncardname, "%li", l);
cardname = ncardname;
break;
}
}
if (!strcmp(argv[optind], "init")) {
res = init(initfile, cardname);
} else if (!strcmp(argv[optind], "store")) {
res = save_state(cfgfile, cardname);
} else if (!strcmp(argv[optind], "restore")) {
if (removestate)
remove(statefile);
res = load_state(cfgfile, initfile, cardname, init_fallback);
} else {
fprintf(stderr, "alsactl: Unknown command '%s'...\n",
argv[optind]);
res = -ENODEV;
}
snd_config_update_free_global();
return res < 0 ? -res : 0;
}
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