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/*
 * BSD Telephony Of Mexico "Tormenta" Tone Zone Support 2/22/01
 * 
 * This program 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 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 General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
 *
 * Primary Author: Pauline Middelink <middelink@polyware.nl>
 *
 */

#ifndef _ASTERISK_INDICATIONS_H
#define _ASTERISK_INDICATIONS_H

#include <asterisk/lock.h>

/* forward reference */
struct ast_channel;

struct tone_zone_sound {
	struct tone_zone_sound *next;		/* next element */
	const char *name;			/* Identifing name */
	const char *data;			/* Actual zone description */
	/* Description is a series of tones of the format:
	   [!]freq1[+freq2][/duration] separated by commas.  There
	   are no spaces.  The sequence is repeated back to the 
	   first tone description not preceeded by !. Duration is
	   specified in milliseconds */
};

struct tone_zone {
	struct tone_zone* next;				/* next in list */
	char country[5];				/* Country code */
	char alias[5];					/* is this an alias? */
	char description[40];				/* Description */
	int  nrringcadance;				/* # registered ringcadance elements */
	int *ringcadance;				/* Ring cadence */
	struct tone_zone_sound *tones;			/* The known tones for this zone */
};

/* set the default tone country */
extern int ast_set_indication_country(const char *country);

/* locate tone_zone, given the country. if country == NULL, use the default country */
extern struct tone_zone *ast_get_indication_zone(const char *country);
/* locate a tone_zone_sound, given the tone_zone. if tone_zone == NULL, use the default tone_zone */
extern struct tone_zone_sound *ast_get_indication_tone(const struct tone_zone *zone, const char *indication);

/* add a new country, if country exists, it will be replaced. */
extern int ast_register_indication_country(struct tone_zone *country);
/* remove an existing country and all its indications, country must exist */
extern int ast_unregister_indication_country(const char *country);
/* add a new indication to a tone_zone. tone_zone must exist. if the indication already
 * exists, it will be replaced. */
extern int ast_register_indication(struct tone_zone *zone, const char *indication, const char *tonelist);
/* remove an existing tone_zone's indication. tone_zone must exist */
extern int ast_unregister_indication(struct tone_zone *zone, const char *indication);

/* Start a tone-list going */
int ast_playtones_start(struct ast_channel *chan, int vol, const char* tonelist, int interruptible);
/*! Stop the tones from playing */
void ast_playtones_stop(struct ast_channel *chan);

extern struct tone_zone *tone_zones;
extern ast_mutex_t tzlock;

#endif