Draft ideas for high level call handling
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/*
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* (C) 2008 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2008 by Stefan Schmidt <stefan@datenfreihafen.org>
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* All Rights Reserved
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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 2 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef _CALL_HANDLING_H
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#define _CALL_HANDLING_H
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#include "linuxlist.h"
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#include "gsm_subscriber.h"
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#include "timer.h"
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/*
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* State transitions to be seen from the outside
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*/
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#define CALL_STATE_NULL 0
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#define CALL_STATE_SETUP 1
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#define CALL_STATE_PROCEED 2
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#define CALL_STATE_ALERT 3
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#define CALL_STATE_CONNECT 4
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#define CALL_STATE_ACTIVE 5
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#define CALL_STATE_RELEASE 6
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struct call_data {
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struct llist_head entry;
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void (*state_change_cb)(int oldstate, int newstate, int event, void *data);
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void *data;
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char *destination_number;
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/* Internal */
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int state;
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char tmsi[GSM_TMSI_LENGTH];
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struct timer_list t30x; /* to be added for... */
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};
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int call_initiate(struct call_data *call, char *tmsi);
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void call_abort(struct call_data *call);
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/**
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* Get notified about new incoming calls. The call_data is owned
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* and managed by the internal call handling.
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*/
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void call_set_callback(void (*cb)(struct call_data *call, void *data), void* data);
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void call_proceed(struct call_data *call_data);
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void call_connect(struct call_data *call_data);
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#endif /* _CALL_HANDLING_H */
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