/*
* Copyright (c) 2012 Jan Vesely
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/** @addtogroup audio
* @brief HelenOS sound server
* @{
*/
/** @file
*/
#ifndef AUDIO_DEVICE_H_
#define AUDIO_DEVICE_H_
#include <adt/list.h>
#include <async.h>
#include <fibril_synch.h>
#include <errno.h>
#include <ipc/loc.h>
#include <audio_pcm_iface.h>
#include "audio_source.h"
#include "audio_sink.h"
/** Audio device structure. */
typedef struct {
/** Link in hound's device list */
link_t link;
/** Location service id of the audio driver */
service_id_t id;
/** IPC session to the device driver. */
audio_pcm_sess_t *sess;
/** Device name */
char *name;
/** Device buffer */
struct {
void *base;
size_t size;
void *position;
size_t fragment_size;
} buffer;
/** Capture device abstraction. */
audio_source_t source;
/** Playback device abstraction. */
audio_sink_t sink;
} audio_device_t;
/** Linked list instance helper */
static inline audio_device_t *audio_device_list_instance(link_t *l)
{
return l ? list_get_instance(l, audio_device_t, link) : NULL;
}
errno_t audio_device_init(audio_device_t *dev, service_id_t id, const char *name);
void audio_device_fini(audio_device_t *dev);
audio_source_t *audio_device_get_source(audio_device_t *dev);
audio_sink_t *audio_device_get_sink(audio_device_t *dev);
errno_t audio_device_recorded_data(audio_device_t *dev, void **base, size_t *size);
errno_t audio_device_available_buffer(audio_device_t *dev, void **base, size_t *size);
#endif
/**
* @}
*/