From c0b018882557e1679c0783657394704ec5089643 Mon Sep 17 00:00:00 2001 From: Jarko Poutiainen Date: Thu, 24 Mar 2011 15:46:28 +0200 Subject: src: add gnss atom and agent implementation --- src/gnss.c | 386 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 386 insertions(+) create mode 100644 src/gnss.c (limited to 'src/gnss.c') diff --git a/src/gnss.c b/src/gnss.c new file mode 100644 index 00000000..e0c17e6a --- /dev/null +++ b/src/gnss.c @@ -0,0 +1,386 @@ +/* + * + * oFono - Open Source Telephony + * + * Copyright (C) 2008-2010 Intel Corporation. All rights reserved. + * Copyright (C) 2011 ST-Ericsson AB. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#define _GNU_SOURCE +#include +#include +#include +#include + +#include +#include +#include + +#include "ofono.h" + +#include "common.h" +#include "gnssagent.h" + +static GSList *g_drivers = NULL; + +struct ofono_gnss { + const struct ofono_gnss_driver *driver; + void *driver_data; + struct ofono_atom *atom; + DBusMessage *pending; + struct gnss_agent *posr_agent; + ofono_bool_t enabled; +}; + +static void gnss_unregister_agent_cb(const struct ofono_error *error, + void *data) +{ + DBusMessage *reply; + struct ofono_gnss *gnss = data; + + DBG(""); + + if (error->type != OFONO_ERROR_TYPE_NO_ERROR) { + ofono_error("Disabling Location Reporting Failed"); + reply = __ofono_error_failed(gnss->pending); + __ofono_dbus_pending_reply(&gnss->pending, reply); + return; + } + + gnss->enabled = FALSE; + + if (gnss->posr_agent) + gnss_agent_free(gnss->posr_agent); + + if (gnss->posr_agent) { + ofono_error("Releasing agent failed"); + reply = __ofono_error_failed(gnss->pending); + __ofono_dbus_pending_reply(&gnss->pending, reply); + return; + } + + if (gnss->pending) { + reply = dbus_message_new_method_return(gnss->pending); + __ofono_dbus_pending_reply(&gnss->pending, reply); + } +} + +static void gnss_register_agent_cb(const struct ofono_error *error, + void *data) +{ + DBusMessage *reply; + struct ofono_gnss *gnss = data; + + DBG(""); + + if (error->type != OFONO_ERROR_TYPE_NO_ERROR) { + ofono_error("Enabling Location Reporting Failed"); + reply = __ofono_error_failed(gnss->pending); + + if (gnss->posr_agent) + gnss_agent_free(gnss->posr_agent); + + __ofono_dbus_pending_reply(&gnss->pending, reply); + return; + } + + if (gnss->posr_agent) { + gnss->enabled = TRUE; + reply = dbus_message_new_method_return(gnss->pending); + __ofono_dbus_pending_reply(&gnss->pending, reply); + } else + gnss->driver->set_position_reporting(gnss, FALSE, + gnss_unregister_agent_cb, + gnss); +} + +static void gnss_agent_notify(gpointer user_data) +{ + struct ofono_gnss *gnss = user_data; + + if (gnss->enabled) + gnss->driver->set_position_reporting(gnss, FALSE, + gnss_unregister_agent_cb, + gnss); + + gnss->posr_agent = NULL; +} + +static DBusMessage *gnss_register_agent(DBusConnection *conn, + DBusMessage *msg, void *data) +{ + struct ofono_gnss *gnss = data; + const char *agent_path; + + if (gnss->pending) + return __ofono_error_busy(msg); + + if (gnss->posr_agent) + return __ofono_error_busy(msg); + + if (dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, + &agent_path, DBUS_TYPE_INVALID) == FALSE) + return __ofono_error_invalid_args(msg); + + if (!__ofono_dbus_valid_object_path(agent_path)) + return __ofono_error_invalid_format(msg); + + gnss->posr_agent = gnss_agent_new(agent_path, + dbus_message_get_sender(msg), + FALSE); + + if (gnss->posr_agent == NULL) + return __ofono_error_failed(msg); + + gnss->enabled = FALSE; + + gnss_agent_set_removed_notify(gnss->posr_agent, + gnss_agent_notify, gnss); + + gnss->driver->set_position_reporting(gnss, TRUE, gnss_register_agent_cb, + gnss); + + gnss->pending = dbus_message_ref(msg); + + return NULL; +} + +static DBusMessage *gnss_unregister_agent(DBusConnection *conn, + DBusMessage *msg, void *data) +{ + struct ofono_gnss *gnss = data; + const char *agent_path; + const char *agent_bus = dbus_message_get_sender(msg); + + if (gnss->pending) + return __ofono_error_busy(msg); + + if (dbus_message_get_args(msg, NULL, + DBUS_TYPE_OBJECT_PATH, &agent_path, + DBUS_TYPE_INVALID) == FALSE) + return __ofono_error_invalid_args(msg); + + if (gnss->posr_agent == NULL) + return __ofono_error_failed(msg); + + if (!gnss_agent_matches(gnss->posr_agent, agent_path, agent_bus)) + return __ofono_error_failed(msg); + + gnss->pending = dbus_message_ref(msg); + + gnss->driver->set_position_reporting(gnss, FALSE, + gnss_unregister_agent_cb, + gnss); + + return NULL; +} + +static void gnss_send_element_cb(const struct ofono_error *error, + void *data) +{ + DBusMessage *reply; + struct ofono_gnss *gnss = data; + + DBG(""); + + if (error->type != OFONO_ERROR_TYPE_NO_ERROR) { + ofono_error("Sending Positioning Element failed"); + + reply = __ofono_error_failed(gnss->pending); + + goto out; + } + + reply = dbus_message_new_method_return(gnss->pending); + +out: + __ofono_dbus_pending_reply(&gnss->pending, reply); +} + +static DBusMessage *gnss_send_element(DBusConnection *conn, + DBusMessage *msg, void *data) +{ + const char *caller = dbus_message_get_sender(msg); + struct ofono_gnss *gnss = data; + const char *xml; + + DBG(""); + + if (gnss->pending) + return __ofono_error_busy(msg); + + if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &xml, + DBUS_TYPE_INVALID)) + return __ofono_error_invalid_args(msg); + + if (!gnss_agent_sender_matches(gnss->posr_agent, caller)) + return __ofono_error_access_denied(msg); + + gnss->pending = dbus_message_ref(msg); + + gnss->driver->send_element(gnss, xml, gnss_send_element_cb, gnss); + + return NULL; +} + +static GDBusMethodTable gnss_methods[] = { + { "SendPositioningElement", "s", "", + gnss_send_element, G_DBUS_METHOD_FLAG_ASYNC }, + { "RegisterPositioningRequestAgent", "o", "", + gnss_register_agent, + G_DBUS_METHOD_FLAG_ASYNC }, + { "UnregisterPositioningRequestAgent", "o", "", + gnss_unregister_agent, + G_DBUS_METHOD_FLAG_ASYNC }, + { } +}; + +static void gnss_unregister(struct ofono_atom *atom) +{ + struct ofono_gnss *gnss = __ofono_atom_get_data(atom); + DBusConnection *conn = ofono_dbus_get_connection(); + struct ofono_modem *modem = __ofono_atom_get_modem(atom); + const char *path = __ofono_atom_get_path(atom); + + if (gnss->posr_agent) + gnss_agent_free(gnss->posr_agent); + + ofono_modem_remove_interface(modem, OFONO_GNSS_INTERFACE); + g_dbus_unregister_interface(conn, path, OFONO_GNSS_INTERFACE); +} + +static void gnss_remove(struct ofono_atom *atom) +{ + struct ofono_gnss *gnss = __ofono_atom_get_data(atom); + + DBG("atom: %p", atom); + + if (gnss == NULL) + return; + + if (gnss->driver && gnss->driver->remove) + gnss->driver->remove(gnss); + + g_free(gnss); +} + +void ofono_gnss_register(struct ofono_gnss *gnss) +{ + DBusConnection *conn = ofono_dbus_get_connection(); + struct ofono_modem *modem = __ofono_atom_get_modem(gnss->atom); + const char *path = __ofono_atom_get_path(gnss->atom); + + if (!g_dbus_register_interface(conn, path, + OFONO_GNSS_INTERFACE, + gnss_methods, NULL, NULL, + gnss, NULL)) { + ofono_error("Could not create %s interface", + OFONO_GNSS_INTERFACE); + + return; + } + + ofono_modem_add_interface(modem, OFONO_GNSS_INTERFACE); + + __ofono_atom_register(gnss->atom, gnss_unregister); +} + +int ofono_gnss_driver_register(const struct ofono_gnss_driver *d) +{ + DBG("driver: %p, name: %s", d, d->name); + + if (d->probe == NULL) + return -EINVAL; + + g_drivers = g_slist_prepend(g_drivers, (void *) d); + + return 0; +} + +void ofono_gnss_driver_unregister(const struct ofono_gnss_driver *d) +{ + DBG("driver: %p, name: %s", d, d->name); + + g_drivers = g_slist_remove(g_drivers, (void *) d); +} + +struct ofono_gnss *ofono_gnss_create(struct ofono_modem *modem, + unsigned int vendor, + const char *driver, + void *data) +{ + struct ofono_gnss *gnss; + GSList *l; + + if (driver == NULL) + return NULL; + + gnss = g_try_new0(struct ofono_gnss, 1); + + if (gnss == NULL) + return NULL; + + gnss->enabled = FALSE; + gnss->atom = __ofono_modem_add_atom(modem, OFONO_ATOM_TYPE_GNSS, + gnss_remove, gnss); + + for (l = g_drivers; l; l = l->next) { + const struct ofono_gnss_driver *drv = l->data; + + if (g_strcmp0(drv->name, driver)) + continue; + + if (drv->probe(gnss, vendor, data) < 0) + continue; + + gnss->driver = drv; + break; + } + + return gnss; +} + +void ofono_gnss_notify_posr_request(struct ofono_gnss *gnss, const char *xml) +{ + if (gnss->posr_agent) + gnss_agent_receive_request(gnss->posr_agent, xml); +} + +void ofono_gnss_notify_posr_reset(struct ofono_gnss *gnss) +{ + if (gnss->posr_agent) + gnss_agent_receive_reset(gnss->posr_agent); +} + +void ofono_gnss_remove(struct ofono_gnss *gnss) +{ + __ofono_atom_free(gnss->atom); +} + +void ofono_gnss_set_data(struct ofono_gnss *gnss, void *data) +{ + gnss->driver_data = data; +} + +void *ofono_gnss_get_data(struct ofono_gnss *gnss) +{ + return gnss->driver_data; +} -- cgit v1.2.3