fwupd/plugins/upower/fu-plugin-upower.c
2016-12-12 16:28:16 +00:00

91 lines
2.5 KiB
C

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Copyright (C) 2016 Richard Hughes <richard@hughsie.com>
*
* Licensed under the GNU General Public License Version 2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "fu-plugin.h"
#include "fu-plugin-vfuncs.h"
struct FuPluginData {
GDBusProxy *proxy;
};
void
fu_plugin_init (FuPlugin *plugin)
{
fu_plugin_alloc_data (plugin, sizeof (FuPluginData));
}
void
fu_plugin_destroy (FuPlugin *plugin)
{
FuPluginData *data = fu_plugin_get_data (plugin);
if (data->proxy != NULL)
g_object_unref (data->proxy);
}
gboolean
fu_plugin_startup (FuPlugin *plugin, GError **error)
{
FuPluginData *data = fu_plugin_get_data (plugin);
data->proxy =
g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS,
NULL,
"org.freedesktop.UPower",
"/org/freedesktop/UPower",
"org.freedesktop.UPower",
NULL,
error);
if (data->proxy == NULL) {
g_prefix_error (error, "failed to conect to upower: ");
return FALSE;
}
return TRUE;
}
gboolean
fu_plugin_update_prepare (FuPlugin *plugin,
FuDevice *device,
GError **error)
{
FuPluginData *data = fu_plugin_get_data (plugin);
g_autoptr(GVariant) value = NULL;
/* can we only do this on AC power */
if (!fu_device_has_flag (device, FWUPD_DEVICE_FLAG_REQUIRE_AC))
return TRUE;
value = g_dbus_proxy_get_cached_property (data->proxy, "OnBattery");
if (value == NULL) {
g_warning ("failed to get OnBattery value, assume on AC power");
return TRUE;
}
if (g_variant_get_boolean (value)) {
g_set_error_literal (error,
FWUPD_ERROR,
FWUPD_ERROR_AC_POWER_REQUIRED,
"Cannot install update "
"when not on AC power");
return FALSE;
}
return TRUE;
}