diff options
Diffstat (limited to 'tinyalsa_audio/mixer.h')
| -rw-r--r-- | tinyalsa_audio/mixer.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/tinyalsa_audio/mixer.h b/tinyalsa_audio/mixer.h new file mode 100644 index 0000000..a370575 --- /dev/null +++ b/tinyalsa_audio/mixer.h @@ -0,0 +1,126 @@ +/* + * Copyright (C) 2012 Paul Kocialkowski <contact@paulk.fr> + * + * 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 3 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, see <http://www.gnu.org/licenses/>. + */ + +#ifndef TINYALSA_AUDIO_MIXER_H +#define TINYALSA_AUDIO_MIXER_H + +#include <tinyalsa/asoundlib.h> + +#include <hardware/audio.h> +#include <system/audio.h> + +#define TINYALSA_MIXER_CONFIG_FILE "/system/etc/tinyalsa-audio.xml" + +struct list_head { + struct list_head *prev; + struct list_head *next; + + void *data; +}; + +enum tinyalsa_mixer_data_type { + MIXER_DATA_TYPE_CTRL, + MIXER_DATA_TYPE_WRITE, + MIXER_DATA_TYPE_MAX +}; + +struct tinyalsa_mixer_data { + enum tinyalsa_mixer_data_type type; + char *name; + char *value; + char *attr; +}; + +struct tinyalsa_mixer_device_props { + audio_devices_t type; +}; + +struct tinyalsa_mixer_device { + struct tinyalsa_mixer_device_props props; + struct list_head *enable; + struct list_head *disable; +}; + +struct tinyalsa_mixer_io_props { + int card; + int device; + + int rate; + audio_channel_mask_t channel_mask; + audio_format_t format; + + int period_size; + int period_count; +}; + +struct tinyalsa_mixer_io { + struct tinyalsa_mixer_io_props props; + struct tinyalsa_mixer_device *device_current; + struct list_head *devices; + int state; +}; + +struct tinyalsa_mixer { + struct tinyalsa_mixer_io output; + struct tinyalsa_mixer_io input; + struct tinyalsa_mixer_io modem; + struct mixer *mixer; +}; + +enum tinyalsa_mixer_direction { + TINYALSA_MIXER_DIRECTION_OUTPUT, + TINYALSA_MIXER_DIRECTION_INPUT, + TINYALSA_MIXER_DIRECTION_MODEM, + TINYALSA_MIXER_DIRECTION_MAX +}; + +struct tinyalsa_mixer_config_data { + struct tinyalsa_mixer *mixer; + struct tinyalsa_mixer_io_props io_props; + struct tinyalsa_mixer_device_props device_props; + enum tinyalsa_mixer_direction direction; + + struct tinyalsa_mixer_device *device; + struct list_head **list_start; + struct list_head *list; +}; + +int tinyalsa_mixer_set_output_state(struct tinyalsa_mixer *mixer, int state); +int tinyalsa_mixer_set_input_state(struct tinyalsa_mixer *mixer, int state); +int tinyalsa_mixer_set_modem_state(struct tinyalsa_mixer *mixer, int state); + +int tinyalsa_mixer_set_device(struct tinyalsa_mixer *mixer, audio_devices_t device); + +int tinyalsa_mixer_set_output_volume(struct tinyalsa_mixer *mixer, + audio_devices_t device, float volume); +int tinyalsa_mixer_set_master_volume(struct tinyalsa_mixer *mixer, float volume); +int tinyalsa_mixer_set_mic_mute(struct tinyalsa_mixer *mixer, + audio_devices_t device, int mute); +int tinyalsa_mixer_set_input_gain(struct tinyalsa_mixer *mixer, + audio_devices_t device, float gain); +int tinyalsa_mixer_set_voice_volume(struct tinyalsa_mixer *mixer, + audio_devices_t device, float volume); + +audio_devices_t tinyalsa_mixer_get_supported_devices(struct tinyalsa_mixer *mixer); +struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_output_props(struct tinyalsa_mixer *mixer); +struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_input_props(struct tinyalsa_mixer *mixer); +struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_modem_props(struct tinyalsa_mixer *mixer); + +void tinyalsa_mixer_close(struct tinyalsa_mixer *mixer); +int tinyalsa_mixer_open(struct tinyalsa_mixer **mixer_p, char *config_file); + +#endif |