core: Add support for audio settings interface

1 files changed, 222 insertions, 0 deletions

diff --git a/src/audio-settings.c b/src/audio-settings.c
new file mode 100644
index 00000000..7ccdd05f
--- /dev/null
+++ b/src/audio-settings.c
@@ -0,0 +1,222 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2008-2010  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License veasion 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 <config.h>
+#endif
+
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+
+#include <glib.h>
+#include <gdbus.h>
+
+#include "ofono.h"
+#include "common.h"
+
+static GSList *g_drivers = NULL;
+
+struct ofono_audio_settings {
+	ofono_bool_t active;
+	const struct ofono_audio_settings_driver *driver;
+	void *driver_data;
+	struct ofono_atom *atom;
+};
+
+void ofono_audio_settings_notify(struct ofono_audio_settings *as,
+                                                ofono_bool_t active)
+{
+	const char *path = __ofono_atom_get_path(as->atom);
+	DBusConnection *conn = ofono_dbus_get_connection();
+
+	if (as->active == active)
+		return;
+
+	DBG("active %d", active);
+
+	as->active = active;
+
+	ofono_dbus_signal_property_changed(conn, path,
+				OFONO_AUDIO_SETTINGS_INTERFACE,
+				"Active", DBUS_TYPE_BOOLEAN, &as->active);
+
+}
+
+static DBusMessage *audio_get_properties_reply(DBusMessage *msg,
+					struct ofono_audio_settings *as)
+{
+	DBusMessage *reply;
+	DBusMessageIter iter;
+	DBusMessageIter dict;
+
+	reply = dbus_message_new_method_return(msg);
+	if (!reply)
+		return NULL;
+
+	dbus_message_iter_init_append(reply, &iter);
+
+	dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+					OFONO_PROPERTIES_ARRAY_SIGNATURE,
+					&dict);
+
+	ofono_dbus_dict_append(&dict, "Active", DBUS_TYPE_BOOLEAN, &as->active);
+
+	dbus_message_iter_close_container(&iter, &dict);
+
+	return reply;
+}
+
+static DBusMessage *audio_get_properties(DBusConnection *conn,
+						DBusMessage *msg, void *data)
+{
+	struct ofono_audio_settings *as = data;
+
+	return audio_get_properties_reply(msg, as);
+}
+
+static GDBusMethodTable audio_methods[] = {
+	{ "GetProperties", "", "a{sv}", audio_get_properties,
+						G_DBUS_METHOD_FLAG_ASYNC },
+	{ }
+};
+
+static GDBusSignalTable audio_signals[] = {
+	{ "PropertyChanged", "sv" },
+	{ }
+};
+
+int ofono_audio_settings_driver_register(const struct ofono_audio_settings_driver *d)
+{
+	DBG("driver: %p, name: %s", d, d->name);
+
+	if (!d || !d->probe)
+		return -EINVAL;
+
+	g_drivers = g_slist_prepend(g_drivers, (void *)d);
+
+	return 0;
+}
+
+void ofono_audio_settings_driver_unregister(const struct ofono_audio_settings_driver *d)
+{
+	DBG("driver: %p, name: %s", d, d->name);
+
+	if (!d)
+		return;
+
+	g_drivers = g_slist_remove(g_drivers, (void *)d);
+}
+
+static void audio_settings_unregister(struct ofono_atom *atom)
+{
+	struct ofono_audio_settings *as = __ofono_atom_get_data(atom);
+	const char *path = __ofono_atom_get_path(as->atom);
+	DBusConnection *conn = ofono_dbus_get_connection();
+	struct ofono_modem *modem = __ofono_atom_get_modem(as->atom);
+
+	ofono_modem_remove_interface(modem, OFONO_AUDIO_SETTINGS_INTERFACE);
+	g_dbus_unregister_interface(conn, path, OFONO_AUDIO_SETTINGS_INTERFACE);
+}
+
+static void audio_settings_remove(struct ofono_atom *atom)
+{
+	struct ofono_audio_settings *as = __ofono_atom_get_data(atom);
+
+	DBG("atom: %p", atom);
+
+	if (!as)
+		return;
+
+	if (as->driver && as->driver->remove)
+		as->driver->remove(as);
+
+	g_free(as);
+}
+
+struct ofono_audio_settings *ofono_audio_settings_create(struct ofono_modem *modem,
+							unsigned int vendor,
+							const char *driver,
+							void *data)
+{
+	struct ofono_audio_settings *as;
+	GSList *l;
+
+	if (!driver)
+		return NULL;
+
+	as = g_try_new0(struct ofono_audio_settings, 1);
+	if (!as)
+		return NULL;
+
+	as->atom = __ofono_modem_add_atom(modem, OFONO_ATOM_TYPE_AUDIO_SETTINGS,
+						audio_settings_remove, as);
+
+	for (l = g_drivers; l; l = l->next) {
+		const struct ofono_audio_settings_driver *drv = l->data;
+
+		if (g_strcmp0(drv->name, driver) != 0)
+			continue;
+
+		if (drv->probe(as, vendor, data) < 0)
+			continue;
+
+		as->driver = drv;
+		break;
+	}
+
+	return as;
+}
+
+void ofono_audio_settings_register(struct ofono_audio_settings *as)
+{
+	DBusConnection *conn = ofono_dbus_get_connection();
+	struct ofono_modem *modem = __ofono_atom_get_modem(as->atom);
+	const char *path = __ofono_atom_get_path(as->atom);
+
+	if (!g_dbus_register_interface(conn, path,
+					OFONO_AUDIO_SETTINGS_INTERFACE,
+					audio_methods, audio_signals,
+					NULL, as, NULL)) {
+		ofono_error("Could not create %s interface",
+				OFONO_AUDIO_SETTINGS_INTERFACE);
+
+		return;
+	}
+
+	ofono_modem_add_interface(modem, OFONO_AUDIO_SETTINGS_INTERFACE);
+	__ofono_atom_register(as->atom, audio_settings_unregister);
+}
+
+void ofono_audio_settings_remove(struct ofono_audio_settings *as)
+{
+	__ofono_atom_free(as->atom);
+}
+
+void ofono_audio_settings_set_data(struct ofono_audio_settings *as, void *data)
+{
+	as->driver_data = data;
+}
+
+void *ofono_audio_settings_get_data(struct ofono_audio_settings *as)
+{
+	return as->driver_data;
+}