mirror of
https://github.com/alsa-project/alsa-utils
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104 lines
2.5 KiB
C
104 lines
2.5 KiB
C
/*
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* Advanced Linux Sound Architecture Control Program
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* Copyright (c) 1997 by Perex, APS, University of South Bohemia
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/asoundlib.h>
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#define ALSACTL_FILE "/etc/asound.conf"
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#define LEFT 1
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#define RIGHT 2
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#define OUTPUT 0
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#define INPUT 1
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extern int debugflag;
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extern void error(const char *fmt,...);
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struct ctl_switch {
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int change;
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snd_switch_t s;
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struct ctl_switch *next;
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};
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struct ctl {
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snd_ctl_hw_info_t hwinfo;
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struct ctl_switch *switches;
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};
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struct mixer_element {
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snd_mixer_element_info_t info;
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snd_mixer_element_t element;
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struct mixer_element *next;
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};
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struct mixer {
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int no;
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snd_mixer_info_t info;
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struct mixer_element *elements;
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struct ctl_switch *switches;
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struct mixer *next;
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};
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struct pcm {
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int no;
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snd_pcm_info_t info;
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struct ctl_switch *pswitches;
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struct ctl_switch *rswitches;
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struct pcm *next;
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};
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struct rawmidi {
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int no;
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snd_rawmidi_info_t info;
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struct ctl_switch *iswitches;
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struct ctl_switch *oswitches;
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struct rawmidi *next;
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};
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struct soundcard {
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int no; /* card number */
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struct ctl control;
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struct mixer *mixers;
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struct pcm *pcms;
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struct rawmidi *rawmidis;
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struct soundcard *next;
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};
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extern struct soundcard *soundcards;
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extern struct soundcard *rsoundcards; /* read soundcards */
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void soundcard_setup_init(void);
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void soundcard_setup_done(void);
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int soundcard_setup_load(const char *filename, int skip);
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int soundcard_setup_write(const char *filename, int cardno);
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int soundcard_setup_collect_switches(int cardno);
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int soundcard_setup_collect_data(int cardno);
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int soundcard_setup_merge_switches(int cardno);
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int soundcard_setup_merge_data(int cardno);
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int soundcard_setup_process_switches(int cardno);
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int soundcard_setup_process_data(int cardno);
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char *mixer_element_id(snd_mixer_eid_t *eid);
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