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/* libgsmd event demultiplexer handler
*
* (C) 2006-2007 by OpenMoko, Inc.
* Written by Harald Welte <laforge@openmoko.org>
* All Rights Reserved
*
* 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 library 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <libgsmd/voicecall.h>
#include <libgsmd/event.h>
#include <gsmd/usock.h>
#include <gsmd/event.h>
#include "lgsm_internals.h"
static lgsm_evt_handler *evt_handlers[__NUM_GSMD_EVT];
int lgsm_evt_handler_register(struct lgsm_handle *lh, int evt_type,
lgsm_evt_handler *handler)
{
if (evt_type >= __NUM_GSMD_EVT)
return -EINVAL;
evt_handlers[evt_type] = handler;
return 0;
}
void lgsm_evt_handler_unregister(struct lgsm_handle *lh, int evt_type)
{
if (evt_type < __NUM_GSMD_EVT)
evt_handlers[evt_type] = NULL;
}
static int evt_demux_msghandler(struct lgsm_handle *lh, struct gsmd_msg_hdr *gmh)
{
struct gsmd_evt_auxdata *aux = gmh->data;
if (gmh->len < sizeof(*aux))
return -EIO;
if (gmh->msg_type != GSMD_MSG_EVENT ||
gmh->msg_subtype >= __NUM_GSMD_EVT)
return -EINVAL;
if (evt_handlers[gmh->msg_subtype])
return evt_handlers[gmh->msg_subtype](lh, gmh->msg_subtype, aux);
else
return 0;
}
int lgsm_evt_init(struct lgsm_handle *lh)
{
return lgsm_register_handler(lh, GSMD_MSG_EVENT, &evt_demux_msghandler);
}
void lgsm_evt_exit(struct lgsm_handle *lh)
{
lgsm_unregister_handler(lh, GSMD_MSG_EVENT);
}
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