126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/*
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* Copyright (C) 2012 Paul Kocialkowski <contact@paulk.fr>
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TINYALSA_AUDIO_MIXER_H
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#define TINYALSA_AUDIO_MIXER_H
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#include <tinyalsa/asoundlib.h>
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#include <hardware/audio.h>
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#include <system/audio.h>
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#define TINYALSA_MIXER_CONFIG_FILE "/system/etc/tinyalsa-audio.xml"
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struct list_head {
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struct list_head *prev;
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struct list_head *next;
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void *data;
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};
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enum tinyalsa_mixer_data_type {
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MIXER_DATA_TYPE_CTRL,
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MIXER_DATA_TYPE_WRITE,
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MIXER_DATA_TYPE_MAX
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};
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struct tinyalsa_mixer_data {
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enum tinyalsa_mixer_data_type type;
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char *name;
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char *value;
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char *attr;
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};
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struct tinyalsa_mixer_device_props {
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audio_devices_t type;
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};
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struct tinyalsa_mixer_device {
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struct tinyalsa_mixer_device_props props;
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struct list_head *enable;
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struct list_head *disable;
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};
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struct tinyalsa_mixer_io_props {
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int card;
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int device;
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int rate;
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audio_channel_mask_t channel_mask;
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audio_format_t format;
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int period_size;
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int period_count;
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};
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struct tinyalsa_mixer_io {
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struct tinyalsa_mixer_io_props props;
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struct tinyalsa_mixer_device *device_current;
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struct list_head *devices;
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int state;
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};
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struct tinyalsa_mixer {
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struct tinyalsa_mixer_io output;
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struct tinyalsa_mixer_io input;
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struct tinyalsa_mixer_io modem;
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struct mixer *mixer;
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};
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enum tinyalsa_mixer_direction {
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TINYALSA_MIXER_DIRECTION_OUTPUT,
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TINYALSA_MIXER_DIRECTION_INPUT,
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TINYALSA_MIXER_DIRECTION_MODEM,
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TINYALSA_MIXER_DIRECTION_MAX
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};
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struct tinyalsa_mixer_config_data {
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struct tinyalsa_mixer *mixer;
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struct tinyalsa_mixer_io_props io_props;
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struct tinyalsa_mixer_device_props device_props;
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enum tinyalsa_mixer_direction direction;
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struct tinyalsa_mixer_device *device;
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struct list_head **list_start;
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struct list_head *list;
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};
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int tinyalsa_mixer_set_output_state(struct tinyalsa_mixer *mixer, int state);
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int tinyalsa_mixer_set_input_state(struct tinyalsa_mixer *mixer, int state);
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int tinyalsa_mixer_set_modem_state(struct tinyalsa_mixer *mixer, int state);
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int tinyalsa_mixer_set_device(struct tinyalsa_mixer *mixer, audio_devices_t device);
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int tinyalsa_mixer_set_output_volume(struct tinyalsa_mixer *mixer,
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audio_devices_t device, float volume);
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int tinyalsa_mixer_set_master_volume(struct tinyalsa_mixer *mixer, float volume);
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int tinyalsa_mixer_set_mic_mute(struct tinyalsa_mixer *mixer,
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audio_devices_t device, int mute);
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int tinyalsa_mixer_set_input_gain(struct tinyalsa_mixer *mixer,
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audio_devices_t device, float gain);
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int tinyalsa_mixer_set_voice_volume(struct tinyalsa_mixer *mixer,
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audio_devices_t device, float volume);
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struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_output_props(struct tinyalsa_mixer *mixer);
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struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_input_props(struct tinyalsa_mixer *mixer);
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struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_modem_props(struct tinyalsa_mixer *mixer);
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void tinyalsa_mixer_close(struct tinyalsa_mixer *mixer);
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int tinyalsa_mixer_open(struct tinyalsa_mixer **mixer_p, char *config_file);
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#endif
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