mirror of git://git.sysmocom.de/ofono
377 lines
8.8 KiB
C
377 lines
8.8 KiB
C
/*
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*
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* oFono - Open Source Telephony
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*
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* Copyright (C) 2014 Philip Paeps. 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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#include <errno.h>
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#include <stdlib.h>
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#include <glib.h>
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#include <gatchat.h>
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#include <gattty.h>
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#define OFONO_API_SUBJECT_TO_CHANGE
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#include <ofono/plugin.h>
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#include <ofono/modem.h>
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#include <ofono/devinfo.h>
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#include <ofono/netreg.h>
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#include <ofono/sim.h>
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#include <ofono/gprs.h>
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#include <ofono/gprs-context.h>
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#include <ofono/log.h>
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#include <drivers/atmodem/atutil.h>
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#include <drivers/atmodem/vendor.h>
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static const char *cfun_prefix[] = { "+CFUN:", NULL };
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static const char *cpin_prefix[] = { "+CPIN:", NULL };
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static const char *none_prefix[] = { NULL };
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struct quectel_data {
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GAtChat *modem;
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GAtChat *aux;
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guint cpin_ready;
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gboolean have_sim;
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};
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static void quectel_debug(const char *str, void *user_data)
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{
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const char *prefix = user_data;
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ofono_info("%s%s", prefix, str);
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}
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static int quectel_probe(struct ofono_modem *modem)
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{
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struct quectel_data *data;
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DBG("%p", modem);
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data = g_try_new0(struct quectel_data, 1);
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if (data == NULL)
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return -ENOMEM;
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ofono_modem_set_data(modem, data);
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return 0;
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}
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static void quectel_remove(struct ofono_modem *modem)
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{
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struct quectel_data *data = ofono_modem_get_data(modem);
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DBG("%p", modem);
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if (data->cpin_ready != 0)
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g_at_chat_unregister(data->aux, data->cpin_ready);
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ofono_modem_set_data(modem, NULL);
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g_at_chat_unref(data->aux);
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g_at_chat_unref(data->modem);
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g_free(data);
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}
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static GAtChat *open_device(struct ofono_modem *modem,
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const char *key, char *debug)
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{
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const char *device;
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GAtSyntax *syntax;
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GIOChannel *channel;
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GAtChat *chat;
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device = ofono_modem_get_string(modem, key);
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if (device == NULL)
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return NULL;
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DBG("%s %s", key, device);
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channel = g_at_tty_open(device, NULL);
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if (channel == NULL)
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return NULL;
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syntax = g_at_syntax_new_gsm_permissive();
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chat = g_at_chat_new(channel, syntax);
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g_at_syntax_unref(syntax);
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g_io_channel_unref(channel);
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if (chat == NULL)
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return NULL;
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if (getenv("OFONO_AT_DEBUG"))
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g_at_chat_set_debug(chat, quectel_debug, debug);
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return chat;
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}
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static void cpin_notify(GAtResult *result, gpointer user_data)
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{
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struct ofono_modem *modem = user_data;
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struct quectel_data *data = ofono_modem_get_data(modem);
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const char *sim_inserted;
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GAtResultIter iter;
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DBG("%p", modem);
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g_at_result_iter_init(&iter, result);
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if (!g_at_result_iter_next(&iter, "+CPIN:"))
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return;
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g_at_result_iter_next_unquoted_string(&iter, &sim_inserted);
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if (g_strcmp0(sim_inserted, "NOT INSERTED") != 0)
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data->have_sim = TRUE;
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ofono_modem_set_powered(modem, TRUE);
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/* Turn off the radio. */
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g_at_chat_send(data->aux, "AT+CFUN=4", none_prefix, NULL, NULL, NULL);
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g_at_chat_unregister(data->aux, data->cpin_ready);
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data->cpin_ready = 0;
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}
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static void cpin_query(gboolean ok, GAtResult *result, gpointer user_data)
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{
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DBG("ok %d", ok);
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if (ok)
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cpin_notify(result, user_data);
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}
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static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
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{
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struct ofono_modem *modem = user_data;
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struct quectel_data *data = ofono_modem_get_data(modem);
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DBG("ok %d", ok);
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if (!ok) {
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g_at_chat_unref(data->aux);
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data->aux = NULL;
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g_at_chat_unref(data->modem);
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data->modem = NULL;
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ofono_modem_set_powered(modem, FALSE);
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return;
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}
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data->cpin_ready = g_at_chat_register(data->aux, "+CPIN", cpin_notify,
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FALSE, modem, NULL);
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g_at_chat_send(data->aux, "AT+CPIN?", cpin_prefix, cpin_query,
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modem, NULL);
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}
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static void cfun_query(gboolean ok, GAtResult *result, gpointer user_data)
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{
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struct ofono_modem *modem = user_data;
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struct quectel_data *data = ofono_modem_get_data(modem);
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GAtResultIter iter;
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int status;
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DBG("ok %d", ok);
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if (!ok)
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return;
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g_at_result_iter_init(&iter, result);
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if (g_at_result_iter_next(&iter, "+CFUN:") == FALSE)
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return;
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g_at_result_iter_next_number(&iter, &status);
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/*
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* The modem firmware powers up in CFUN=1 but will respond to AT+CFUN=4
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* with ERROR until some amount of time (which varies with temperature)
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* passes. Empirical evidence suggests that the firmware will report an
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* unsolicited +CPIN: notification when it is ready to be useful.
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*
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* Work around this feature by only transitioning to CFUN=4 after we've
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* received an unsolicited +CPIN: notification.
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*/
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if (status != 1) {
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g_at_chat_send(data->aux, "AT+CFUN=4", none_prefix,
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cfun_enable, modem, NULL);
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return;
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}
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cfun_enable(TRUE, NULL, modem);
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}
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static int quectel_enable(struct ofono_modem *modem)
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{
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struct quectel_data *data = ofono_modem_get_data(modem);
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DBG("%p", modem);
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data->modem = open_device(modem, "Modem", "Modem: ");
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if (data->modem == NULL)
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return -EINVAL;
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data->aux = open_device(modem, "Aux", "Aux: ");
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if (data->aux == NULL) {
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g_at_chat_unref(data->modem);
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data->modem = NULL;
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return -EIO;
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}
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g_at_chat_set_slave(data->modem, data->aux);
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g_at_chat_send(data->modem, "ATE0 &C0 +CMEE=1", none_prefix,
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NULL, NULL, NULL);
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g_at_chat_send(data->aux, "ATE0 &C0 +CMEE=1", none_prefix,
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NULL, NULL, NULL);
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g_at_chat_send(data->aux, "AT+CFUN?", cfun_prefix,
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cfun_query, modem, NULL);
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return -EINPROGRESS;
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}
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static void cfun_disable(gboolean ok, GAtResult *result, gpointer user_data)
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{
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struct ofono_modem *modem = user_data;
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struct quectel_data *data = ofono_modem_get_data(modem);
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DBG("");
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g_at_chat_unref(data->aux);
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data->aux = NULL;
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if (ok)
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ofono_modem_set_powered(modem, FALSE);
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}
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static int quectel_disable(struct ofono_modem *modem)
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{
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struct quectel_data *data = ofono_modem_get_data(modem);
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DBG("%p", modem);
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g_at_chat_cancel_all(data->modem);
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g_at_chat_unregister_all(data->modem);
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g_at_chat_unref(data->modem);
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data->modem = NULL;
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g_at_chat_cancel_all(data->aux);
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g_at_chat_unregister_all(data->aux);
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g_at_chat_send(data->aux, "AT+CFUN=0", cfun_prefix,
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cfun_disable, modem, NULL);
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return -EINPROGRESS;
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}
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static void set_online_cb(gboolean ok, GAtResult *result, gpointer user_data)
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{
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struct cb_data *cbd = user_data;
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ofono_modem_online_cb_t cb = cbd->cb;
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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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}
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static void quectel_set_online(struct ofono_modem *modem, ofono_bool_t online,
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ofono_modem_online_cb_t cb, void *user_data)
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{
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struct quectel_data *data = ofono_modem_get_data(modem);
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struct cb_data *cbd = cb_data_new(cb, user_data);
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char const *command = online ? "AT+CFUN=1" : "AT+CFUN=4";
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DBG("modem %p %s", modem, online ? "online" : "offline");
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if (g_at_chat_send(data->aux, command, cfun_prefix, set_online_cb,
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cbd, g_free) > 0)
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return;
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CALLBACK_WITH_FAILURE(cb, cbd->data);
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g_free(cbd);
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}
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static void quectel_pre_sim(struct ofono_modem *modem)
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{
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struct quectel_data *data = ofono_modem_get_data(modem);
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struct ofono_sim *sim;
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DBG("%p", modem);
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ofono_devinfo_create(modem, 0, "atmodem", data->aux);
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sim = ofono_sim_create(modem, OFONO_VENDOR_QUECTEL, "atmodem",
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data->aux);
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if (sim && data->have_sim == TRUE)
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ofono_sim_inserted_notify(sim, TRUE);
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}
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static void quectel_post_sim(struct ofono_modem *modem)
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{
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struct quectel_data *data = ofono_modem_get_data(modem);
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struct ofono_gprs *gprs;
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struct ofono_gprs_context *gc;
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DBG("%p", modem);
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gprs = ofono_gprs_create(modem, 0, "atmodem", data->aux);
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gc = ofono_gprs_context_create(modem, 0, "atmodem", data->modem);
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if (gprs && gc)
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ofono_gprs_add_context(gprs, gc);
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}
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static void quectel_post_online(struct ofono_modem *modem)
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{
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struct quectel_data *data = ofono_modem_get_data(modem);
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ofono_netreg_create(modem, 0, "atmodem", data->aux);
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}
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static struct ofono_modem_driver quectel_driver = {
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.name = "quectel",
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.probe = quectel_probe,
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.remove = quectel_remove,
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.enable = quectel_enable,
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.disable = quectel_disable,
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.set_online = quectel_set_online,
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.pre_sim = quectel_pre_sim,
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.post_sim = quectel_post_sim,
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.post_online = quectel_post_online,
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};
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static int quectel_init(void)
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{
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return ofono_modem_driver_register(&quectel_driver);
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}
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static void quectel_exit(void)
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{
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ofono_modem_driver_unregister(&quectel_driver);
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}
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OFONO_PLUGIN_DEFINE(quectel, "Quectel driver", VERSION,
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OFONO_PLUGIN_PRIORITY_DEFAULT, quectel_init, quectel_exit)
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