mirror of git://git.sysmocom.de/ofono
316 lines
7.1 KiB
C
316 lines
7.1 KiB
C
/*
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*
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* oFono - Open Source Telephony
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*
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* Copyright (C) 2008-2014 Intel Corporation. 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 version 2 as
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* published by the Free Software Foundation.
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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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#define _GNU_SOURCE
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <glib.h>
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#include <ofono/log.h>
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#include <ofono/modem.h>
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#include <ofono/location-reporting.h>
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#include "gatchat.h"
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#include "gatresult.h"
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#include "gattty.h"
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#include "telitmodem.h"
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static const char *none_prefix[] = { NULL };
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static const char *portcfg_prefix[] = { "#PORTCFG:", NULL };
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static const char *gpsctl_prefix[] = { "$GPSP:", NULL };
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struct gps_data {
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GAtChat *chat;
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};
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static void telit_gps_disable_cb(gboolean ok, GAtResult *result,
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gpointer user_data)
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{
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struct cb_data *cbd = user_data;
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struct ofono_location_reporting *lr = cbd->user;
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ofono_location_reporting_disable_cb_t cb = cbd->cb;
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DBG("lr=%p, ok=%d", lr, ok);
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if (!ok) {
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struct ofono_error error;
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decode_at_error(&error, g_at_result_final_response(result));
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cb(&error, cbd->data);
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return;
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}
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CALLBACK_WITH_SUCCESS(cb, cbd->data);
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}
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static void telit_location_reporting_disable(
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struct ofono_location_reporting *lr,
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ofono_location_reporting_disable_cb_t cb,
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void *data)
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{
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struct gps_data *gd = ofono_location_reporting_get_data(lr);
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struct cb_data *cbd = cb_data_new(cb, data);
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DBG("lr=%p", lr);
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cbd->user = lr;
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if (g_at_chat_send(gd->chat, "AT$GPSP=0", none_prefix,
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telit_gps_disable_cb, cbd, g_free) > 0)
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return;
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CALLBACK_WITH_FAILURE(cb, data);
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g_free(cbd);
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}
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static int enable_data_stream(struct ofono_location_reporting *lr)
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{
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struct ofono_modem *modem;
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const char *gps_dev;
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GHashTable *options;
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GIOChannel *channel;
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int fd;
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modem = ofono_location_reporting_get_modem(lr);
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gps_dev = ofono_modem_get_string(modem, "GPS");
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options = g_hash_table_new(g_str_hash, g_str_equal);
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if (options == NULL)
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return -1;
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g_hash_table_insert(options, "Baud", "115200");
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channel = g_at_tty_open(gps_dev, options);
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g_hash_table_destroy(options);
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if (channel == NULL)
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return -1;
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fd = g_io_channel_unix_get_fd(channel);
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g_io_channel_set_close_on_unref(channel, FALSE);
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g_io_channel_unref(channel);
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return fd;
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}
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static void telit_gps_ctl_cb(gboolean ok, GAtResult *result,
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gpointer user_data)
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{
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struct cb_data *cbd = user_data;
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ofono_location_reporting_enable_cb_t cb = cbd->cb;
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struct ofono_location_reporting *lr = cbd->user;
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struct ofono_error error;
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int fd;
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DBG("lr=%p ok=%d", lr, ok);
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decode_at_error(&error, g_at_result_final_response(result));
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if (!ok) {
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cb(&error, -1, cbd->data);
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return;
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}
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fd = enable_data_stream(lr);
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if (fd < 0) {
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CALLBACK_WITH_FAILURE(cb, -1, cbd->data);
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return;
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}
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cb(&error, fd, cbd->data);
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close(fd);
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}
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static void telit_gps_enable_cb(gboolean ok, GAtResult *result,
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gpointer user_data)
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{
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struct cb_data *cbd = user_data;
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ofono_location_reporting_enable_cb_t cb = cbd->cb;
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struct ofono_location_reporting *lr = cbd->user;
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struct gps_data *gd = ofono_location_reporting_get_data(lr);
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struct ofono_error error;
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DBG("lr=%p ok=%d", lr, ok);
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decode_at_error(&error, g_at_result_final_response(result));
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if (!ok) {
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cb(&error, -1, cbd->data);
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g_free(cbd);
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return;
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}
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if (g_at_chat_send(gd->chat, "AT$GPSNMUN=1,0,0,0,0,0,0",
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none_prefix, telit_gps_ctl_cb, cbd, g_free) > 0)
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return;
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CALLBACK_WITH_FAILURE(cb, -1, cbd->data);
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g_free(cbd);
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}
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static void telit_portcfg_check_cb(gboolean ok, GAtResult *result,
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gpointer user_data)
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{
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struct cb_data *cbd = user_data;
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ofono_location_reporting_enable_cb_t cb = cbd->cb;
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struct ofono_location_reporting *lr = cbd->user;
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struct gps_data *gd = ofono_location_reporting_get_data(lr);
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struct ofono_error error;
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int requested_portcfg, current_portcfg;
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GAtResultIter iter;
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DBG("lr=%p ok=%d", lr, ok);
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decode_at_error(&error, g_at_result_final_response(result));
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if (!ok) {
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cb(&error, -1, cbd->data);
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g_free(cbd);
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return;
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}
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g_at_result_iter_init(&iter, result);
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if (!g_at_result_iter_next(&iter, "#PORTCFG:"))
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goto fail;
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if (!g_at_result_iter_next_number(&iter, &requested_portcfg))
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goto fail;
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if (!g_at_result_iter_next_number(&iter, ¤t_portcfg))
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goto fail;
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if (current_portcfg != 8) {
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ofono_warn("Unable to start GPS, modem configuration invalid");
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ofono_warn("Refer to doc/telit-modem.txt section HE910/GPS");
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goto fail;
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}
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if (g_at_chat_send(gd->chat, "AT$GPSP=1", none_prefix,
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telit_gps_enable_cb, cbd, NULL) > 0)
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return;
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fail:
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CALLBACK_WITH_FAILURE(cb, -1, cbd->data);
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g_free(cbd);
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}
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static void telit_location_reporting_enable(struct ofono_location_reporting *lr,
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ofono_location_reporting_enable_cb_t cb,
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void *data)
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{
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struct gps_data *gd = ofono_location_reporting_get_data(lr);
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struct cb_data *cbd = cb_data_new(cb, data);
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DBG("lr=%p", lr);
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cbd->user = lr;
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if (g_at_chat_send(gd->chat, "AT#PORTCFG?", portcfg_prefix,
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telit_portcfg_check_cb, cbd, NULL) > 0)
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return;
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CALLBACK_WITH_FAILURE(cb, -1, cbd->data);
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g_free(cbd);
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}
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static void telit_location_reporting_support_cb(gboolean ok, GAtResult *result,
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gpointer user_data)
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{
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struct ofono_location_reporting *lr = user_data;
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if (!ok) {
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ofono_location_reporting_remove(lr);
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return;
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}
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ofono_location_reporting_register(lr);
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}
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static int telit_location_reporting_probe(struct ofono_location_reporting *lr,
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unsigned int vendor, void *data)
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{
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GAtChat *chat = data;
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struct gps_data *gd;
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gd = g_try_new0(struct gps_data, 1);
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if (gd == NULL)
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return -ENOMEM;
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gd->chat = g_at_chat_clone(chat);
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ofono_location_reporting_set_data(lr, gd);
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g_at_chat_send(gd->chat, "AT$GPSP=?", gpsctl_prefix,
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telit_location_reporting_support_cb,
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lr, NULL);
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return 0;
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}
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static void telit_location_reporting_remove(struct ofono_location_reporting *lr)
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{
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struct gps_data *gd = ofono_location_reporting_get_data(lr);
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ofono_location_reporting_set_data(lr, NULL);
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g_at_chat_unref(gd->chat);
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g_free(gd);
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}
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static struct ofono_location_reporting_driver driver = {
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.name = "telitmodem",
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.type = OFONO_LOCATION_REPORTING_TYPE_NMEA,
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.probe = telit_location_reporting_probe,
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.remove = telit_location_reporting_remove,
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.enable = telit_location_reporting_enable,
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.disable = telit_location_reporting_disable,
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};
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void telit_location_reporting_init()
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{
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ofono_location_reporting_driver_register(&driver);
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}
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void telit_location_reporting_exit()
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{
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ofono_location_reporting_driver_unregister(&driver);
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}
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