mirror of git://git.sysmocom.de/ofono
377 lines
8.9 KiB
C
377 lines
8.9 KiB
C
/*
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*
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* oFono - Open Source Telephony
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*
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* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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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 <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include <glib.h>
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#include <gdbus.h>
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#include "ofono.h"
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#include "common.h"
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#define RADIO_SETTINGS_INTERFACE "org.ofono.RadioSettings"
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#define RADIO_SETTINGS_MODE_CACHED 0x1
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static GSList *g_drivers = NULL;
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struct ofono_radio_settings {
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DBusMessage *pending;
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int flags;
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int mode;
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int pending_mode;
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const struct ofono_radio_settings_driver *driver;
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void *driver_data;
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struct ofono_atom *atom;
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};
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static const char *radio_access_mode_to_string(enum ofono_radio_access_mode mode)
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{
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switch (mode) {
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case OFONO_RADIO_ACCESS_MODE_ANY:
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return "any";
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case OFONO_RADIO_ACCESS_MODE_2G:
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return "2g";
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case OFONO_RADIO_ACCESS_MODE_3G:
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return "3g";
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case OFONO_RADIO_ACCESS_MODE_4G:
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return "4g";
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default:
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return "";
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}
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}
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static int string_to_radio_access_mode(const char *mode)
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{
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if (g_strcmp0(mode, "any") == 0)
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return OFONO_RADIO_ACCESS_MODE_ANY;
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if (g_strcmp0(mode, "2g") == 0)
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return OFONO_RADIO_ACCESS_MODE_2G;
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if (g_strcmp0(mode, "3g") == 0)
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return OFONO_RADIO_ACCESS_MODE_3G;
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if (g_strcmp0(mode, "4g") == 0)
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return OFONO_RADIO_ACCESS_MODE_4G;
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return -1;
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}
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static DBusMessage *radio_get_properties_reply(DBusMessage *msg,
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struct ofono_radio_settings *rs)
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{
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DBusMessage *reply;
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DBusMessageIter iter;
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DBusMessageIter dict;
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const char *mode = radio_access_mode_to_string(rs->mode);
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reply = dbus_message_new_method_return(msg);
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if (!reply)
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return NULL;
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dbus_message_iter_init_append(reply, &iter);
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dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
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OFONO_PROPERTIES_ARRAY_SIGNATURE,
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&dict);
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ofono_dbus_dict_append(&dict, "TechnologyPreference", DBUS_TYPE_STRING,
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&mode);
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dbus_message_iter_close_container(&iter, &dict);
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return reply;
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}
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static void radio_set_rat_mode(struct ofono_radio_settings *rs,
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enum ofono_radio_access_mode mode)
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{
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DBusConnection *conn = ofono_dbus_get_connection();
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const char *path;
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const char *str_mode;
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if (rs->mode == (int)mode)
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return;
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rs->mode = mode;
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rs->flags |= RADIO_SETTINGS_MODE_CACHED;
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path = __ofono_atom_get_path(rs->atom);
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str_mode = radio_access_mode_to_string(rs->mode);
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ofono_dbus_signal_property_changed(conn, path,
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RADIO_SETTINGS_INTERFACE,
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"TechnologyPreference", DBUS_TYPE_STRING,
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&str_mode);
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}
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static void radio_mode_set_callback(const struct ofono_error *error, void *data)
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{
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struct ofono_radio_settings *rs = data;
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DBusMessage *reply;
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if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
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ofono_debug("Error setting radio access mode");
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rs->pending_mode = rs->mode;
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reply = __ofono_error_failed(rs->pending);
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__ofono_dbus_pending_reply(&rs->pending, reply);
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return;
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}
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reply = dbus_message_new_method_return(rs->pending);
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__ofono_dbus_pending_reply(&rs->pending, reply);
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radio_set_rat_mode(rs, rs->pending_mode);
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}
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static void radio_rat_mode_query_callback(const struct ofono_error *error,
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enum ofono_radio_access_mode mode,
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void *data)
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{
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struct ofono_radio_settings *rs = data;
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DBusMessage *reply;
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if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
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ofono_debug("Error during radio access mode query");
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reply = __ofono_error_failed(rs->pending);
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__ofono_dbus_pending_reply(&rs->pending, reply);
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return;
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}
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radio_set_rat_mode(rs, mode);
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reply = radio_get_properties_reply(rs->pending, rs);
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__ofono_dbus_pending_reply(&rs->pending, reply);
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}
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static DBusMessage *radio_get_properties(DBusConnection *conn, DBusMessage *msg,
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void *data)
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{
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struct ofono_radio_settings *rs = data;
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if (rs->flags & RADIO_SETTINGS_MODE_CACHED)
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return radio_get_properties_reply(msg, rs);
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if (!rs->driver->query_rat_mode)
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return __ofono_error_not_implemented(msg);
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if (rs->pending)
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return __ofono_error_busy(msg);
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rs->pending = dbus_message_ref(msg);
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rs->driver->query_rat_mode(rs, radio_rat_mode_query_callback, rs);
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return NULL;
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}
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static DBusMessage *radio_set_property(DBusConnection *conn, DBusMessage *msg,
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void *data)
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{
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struct ofono_radio_settings *rs = data;
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DBusMessageIter iter;
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DBusMessageIter var;
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const char *property;
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if (rs->pending)
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return __ofono_error_busy(msg);
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if (!dbus_message_iter_init(msg, &iter))
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return __ofono_error_invalid_args(msg);
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if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
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return __ofono_error_invalid_args(msg);
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dbus_message_iter_get_basic(&iter, &property);
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dbus_message_iter_next(&iter);
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if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
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return __ofono_error_invalid_args(msg);
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dbus_message_iter_recurse(&iter, &var);
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if (g_strcmp0(property, "TechnologyPreference") == 0) {
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const char *value;
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int mode = -1;
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if (!rs->driver->set_rat_mode)
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return __ofono_error_not_implemented(msg);
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if (dbus_message_iter_get_arg_type(&var) != DBUS_TYPE_STRING)
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return __ofono_error_invalid_args(msg);
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dbus_message_iter_get_basic(&var, &value);
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mode = string_to_radio_access_mode(value);
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if (mode == -1)
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return __ofono_error_invalid_args(msg);
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if (rs->mode == mode)
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return dbus_message_new_method_return(msg);
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rs->pending = dbus_message_ref(msg);
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rs->pending_mode = mode;
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rs->driver->set_rat_mode(rs, mode, radio_mode_set_callback, rs);
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return NULL;
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}
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return __ofono_error_invalid_args(msg);
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}
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static GDBusMethodTable radio_methods[] = {
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{ "GetProperties", "", "a{sv}", radio_get_properties,
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G_DBUS_METHOD_FLAG_ASYNC },
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{ "SetProperty", "sv", "", radio_set_property,
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G_DBUS_METHOD_FLAG_ASYNC },
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{ }
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};
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static GDBusSignalTable radio_signals[] = {
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{ "PropertyChanged", "sv" },
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{ }
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};
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int ofono_radio_settings_driver_register(const struct ofono_radio_settings_driver *d)
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{
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DBG("driver: %p, name: %s", d, d->name);
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if (!d || !d->probe)
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return -EINVAL;
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g_drivers = g_slist_prepend(g_drivers, (void *)d);
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return 0;
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}
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void ofono_radio_settings_driver_unregister(const struct ofono_radio_settings_driver *d)
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{
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DBG("driver: %p, name: %s", d, d->name);
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if (!d)
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return;
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g_drivers = g_slist_remove(g_drivers, (void *)d);
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}
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static void radio_settings_unregister(struct ofono_atom *atom)
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{
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struct ofono_radio_settings *rs = __ofono_atom_get_data(atom);
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const char *path = __ofono_atom_get_path(rs->atom);
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DBusConnection *conn = ofono_dbus_get_connection();
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struct ofono_modem *modem = __ofono_atom_get_modem(rs->atom);
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ofono_modem_remove_interface(modem, RADIO_SETTINGS_INTERFACE);
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g_dbus_unregister_interface(conn, path, RADIO_SETTINGS_INTERFACE);
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}
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static void radio_settings_remove(struct ofono_atom *atom)
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{
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struct ofono_radio_settings *rs = __ofono_atom_get_data(atom);
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DBG("atom: %p", atom);
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if (!rs)
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return;
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if (rs->driver && rs->driver->remove)
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rs->driver->remove(rs);
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g_free(rs);
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}
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struct ofono_radio_settings *ofono_radio_settings_create(struct ofono_modem *modem,
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unsigned int vendor,
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const char *driver,
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void *data)
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{
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struct ofono_radio_settings *rs;
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GSList *l;
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if (!driver)
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return NULL;
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rs = g_try_new0(struct ofono_radio_settings, 1);
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if (!rs)
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return NULL;
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rs->mode = -1;
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rs->atom = __ofono_modem_add_atom(modem, OFONO_ATOM_TYPE_RADIO_SETTINGS,
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radio_settings_remove, rs);
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for (l = g_drivers; l; l = l->next) {
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const struct ofono_radio_settings_driver *drv = l->data;
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if (g_strcmp0(drv->name, driver) != 0)
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continue;
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if (drv->probe(rs, vendor, data) < 0)
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continue;
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rs->driver = drv;
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break;
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}
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return rs;
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}
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void ofono_radio_settings_register(struct ofono_radio_settings *rs)
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{
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DBusConnection *conn = ofono_dbus_get_connection();
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struct ofono_modem *modem = __ofono_atom_get_modem(rs->atom);
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const char *path = __ofono_atom_get_path(rs->atom);
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if (!g_dbus_register_interface(conn, path,
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RADIO_SETTINGS_INTERFACE,
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radio_methods, radio_signals,
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NULL, rs, NULL)) {
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ofono_error("Could not create %s interface",
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RADIO_SETTINGS_INTERFACE);
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return;
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}
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ofono_modem_add_interface(modem, RADIO_SETTINGS_INTERFACE);
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__ofono_atom_register(rs->atom, radio_settings_unregister);
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}
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void ofono_radio_settings_remove(struct ofono_radio_settings *rs)
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{
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__ofono_atom_free(rs->atom);
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}
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void ofono_radio_settings_set_data(struct ofono_radio_settings *rs,
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void *data)
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{
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rs->driver_data = data;
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}
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void *ofono_radio_settings_get_data(struct ofono_radio_settings *rs)
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{
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return rs->driver_data;
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}
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