/*

 *  Sequencer Interface - definition of sequencer event handler

 *  Copyright (c) 2000 by Jaroslav Kysela <perex@perex.cz>

 *                        Abramo Bagnara <abramo@alsa-project.org>

 *

 *

 *   This library is free software; you can redistribute it and/or modify

 *   it under the terms of the GNU Lesser General Public License as

 *   published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

 *

 *   You should have received a copy of the GNU Lesser General Public

 *   License along with this library; if not, write to the Free Software

 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 *

 */

#ifndef __SEQ_LOCAL_H

#define __SEQ_LOCAL_H

#include <stdio.h>

#include <stdlib.h>

#include <limits.h>

#include "local.h"

#define SND_SEQ_OBUF_SIZE	(16*1024)	/* default size */

#define SND_SEQ_IBUF_SIZE	500		/* in event_size aligned */

#define DEFAULT_TMPBUF_SIZE	20

typedef struct snd_seq_queue_client snd_seq_queue_client_t;

typedef struct {

	int (*close)(snd_seq_t *seq);

	int (*nonblock)(snd_seq_t *seq, int nonblock);

	int (*system_info)(snd_seq_t *seq, snd_seq_system_info_t * info);

	int (*get_client_info)(snd_seq_t *seq, snd_seq_client_info_t * info);

	int (*set_client_info)(snd_seq_t *seq, snd_seq_client_info_t * info);

	int (*create_port)(snd_seq_t *seq, snd_seq_port_info_t * port);

	int (*delete_port)(snd_seq_t *seq, snd_seq_port_info_t * port);

	int (*get_port_info)(snd_seq_t *seq, snd_seq_port_info_t * info);

	int (*set_port_info)(snd_seq_t *seq, snd_seq_port_info_t * info);

	int (*get_port_subscription)(snd_seq_t *seq, snd_seq_port_subscribe_t * sub);

	int (*subscribe_port)(snd_seq_t *seq, snd_seq_port_subscribe_t * sub);

	int (*unsubscribe_port)(snd_seq_t *seq, snd_seq_port_subscribe_t * sub);

	int (*query_port_subscribers)(snd_seq_t *seq, snd_seq_query_subscribe_t * subs);

	int (*get_queue_status)(snd_seq_t *seq, snd_seq_queue_status_t * status);

	int (*get_queue_tempo)(snd_seq_t *seq, snd_seq_queue_tempo_t * tempo);

	int (*set_queue_tempo)(snd_seq_t *seq, snd_seq_queue_tempo_t * tempo);

	int (*get_queue_timer)(snd_seq_t *seq, snd_seq_queue_timer_t * timer);

	int (*set_queue_timer)(snd_seq_t *seq, snd_seq_queue_timer_t * timer);

	int (*get_queue_client)(snd_seq_t *seq, snd_seq_queue_client_t * client);

	int (*set_queue_client)(snd_seq_t *seq, snd_seq_queue_client_t * client);

	int (*create_queue)(snd_seq_t *seq, snd_seq_queue_info_t *info);

	int (*delete_queue)(snd_seq_t *seq, snd_seq_queue_info_t *info);

	int (*get_queue_info)(snd_seq_t *seq, snd_seq_queue_info_t *info);

	int (*set_queue_info)(snd_seq_t *seq, snd_seq_queue_info_t *info);

	int (*get_named_queue)(snd_seq_t *seq, snd_seq_queue_info_t *info);

	ssize_t (*write)(snd_seq_t *seq, void *buf, size_t len);

	ssize_t (*read)(snd_seq_t *seq, void *buf, size_t len);

	int (*remove_events)(snd_seq_t *seq, snd_seq_remove_events_t *rmp);

	int (*get_client_pool)(snd_seq_t *seq, snd_seq_client_pool_t *info);

	int (*set_client_pool)(snd_seq_t *seq, snd_seq_client_pool_t *info);

	int (*query_next_client)(snd_seq_t *seq, snd_seq_client_info_t *info);

	int (*query_next_port)(snd_seq_t *seq, snd_seq_port_info_t *info);

} snd_seq_ops_t;

struct _snd_seq {

	char *name;

	snd_seq_type_t type;

	int streams;

	int mode;

	int poll_fd;

	void *dl_handle;

	const snd_seq_ops_t *ops;

	void *private_data;

	int client;		/* client number */

	/* buffers */

	char *obuf;		/* output buffer */

	size_t obufsize;		/* output buffer size */

	size_t obufused;		/* output buffer used size */

	snd_seq_event_t *ibuf;	/* input buffer */

	size_t ibufptr;		/* current pointer of input buffer */

	size_t ibuflen;		/* queued length */

	size_t ibufsize;		/* input buffer size */

	snd_seq_event_t *tmpbuf;	/* temporary event for extracted event */

	size_t tmpbufsize;		/* size of errbuf */

};

int snd_seq_hw_open(snd_seq_t **handle, const char *name, int streams, int mode);

#endif