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upower: Add support for checking battery percentage

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On any devices that normally would require checking for AC also
check that at least one battery on the system has at least 30% to
perform an update.

Fixes: #925
This commit is contained in:
Mario Limonciello 2019-01-10 16:52:59 -06:00 committed by Mario Limonciello
parent 78efa4d2a6
commit ed021ab448
1 changed files with 88 additions and 15 deletions
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103
plugins/upower/fu-plugin-upower.c
View File

@ -8,8 +8,11 @@
#include "fu-plugin-vfuncs.h"
#define MINIMUM_BATTERY_PERCENTAGE 30
struct FuPluginData {
GDBusProxy *proxy;
GDBusProxy *upower_proxy;
GDBusProxy *display_proxy;
};
void
@ -22,15 +25,17 @@ void
fu_plugin_destroy (FuPlugin *plugin)
{
FuPluginData *data = fu_plugin_get_data (plugin);
if (data->proxy != NULL)
g_object_unref (data->proxy);
if (data->upower_proxy != NULL)
g_object_unref (data->upower_proxy);
if (data->display_proxy != NULL)
g_object_unref (data->display_proxy);
}
gboolean
fu_plugin_startup (FuPlugin *plugin, GError **error)
{
FuPluginData *data = fu_plugin_get_data (plugin);
data->proxy =
data->upower_proxy =
g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS,
NULL,
@ -39,31 +44,87 @@ fu_plugin_startup (FuPlugin *plugin, GError **error)
"org.freedesktop.UPower",
NULL,
error);
if (data->proxy == NULL) {
if (data->upower_proxy == NULL) {
g_prefix_error (error, "failed to connect to upower: ");
return FALSE;
}
data->display_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/devices/DisplayDevice",
"org.freedesktop.UPower.Device",
NULL,
error);
if (data->display_proxy == NULL) {
g_prefix_error (error, "failed to connect to upower: ");
return FALSE;
}
return TRUE;
}
static gboolean
fu_plugin_upower_check_percentage_level (FuPlugin *plugin)
{
FuPluginData *data = fu_plugin_get_data (plugin);
gdouble level;
guint power_type;
g_autoptr(GVariant) percentage_val = NULL;
g_autoptr(GVariant) type_val = NULL;
/* check that we "have" a battery */
type_val = g_dbus_proxy_get_cached_property (data->display_proxy, "Type");
if (type_val == NULL) {
g_warning ("Failed to query power type, assume AC power");
return TRUE;
}
power_type = g_variant_get_uint32 (type_val);
if (power_type != 2) {
g_debug ("Not running on battery (Type: %u)", power_type);
return TRUE;
}
/* check percentage high enough */
percentage_val = g_dbus_proxy_get_cached_property (data->display_proxy, "Percentage");
if (percentage_val == NULL) {
g_warning ("Failed to query power percentage level, assume enough charge");
return TRUE;
}
level = g_variant_get_double (percentage_val);
g_debug ("System power source is %.1f%%", level);
return level >= MINIMUM_BATTERY_PERCENTAGE;
}
static gboolean
fu_plugin_upower_check_on_battery (FuPlugin *plugin)
{
FuPluginData *data = fu_plugin_get_data (plugin);
g_autoptr(GVariant) value = NULL;
value = g_dbus_proxy_get_cached_property (data->upower_proxy, "OnBattery");
if (value == NULL) {
g_warning ("failed to get OnBattery value, assume on AC power");
return TRUE;
}
return g_variant_get_boolean (value);
}
gboolean
fu_plugin_update_prepare (FuPlugin *plugin,
FwupdInstallFlags flags,
FuDevice *device,
GError **error)
{
FuPluginData *data = fu_plugin_get_data (plugin);
g_autoptr(GVariant) value = NULL;
/* can we only do this on AC power */
/* not all devices need this */
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) && (flags & FWUPD_INSTALL_FLAG_FORCE) == 0) {
/* determine if operating on AC or battery */
if (fu_plugin_upower_check_on_battery (plugin) &&
(flags & FWUPD_INSTALL_FLAG_FORCE) == 0) {
g_set_error_literal (error,
FWUPD_ERROR,
FWUPD_ERROR_AC_POWER_REQUIRED,
@ -71,5 +132,17 @@ fu_plugin_update_prepare (FuPlugin *plugin,
"when not on AC power unless forced");
return FALSE;
}
/* deteremine if battery high enough */
if (!fu_plugin_upower_check_percentage_level (plugin) &&
(flags & FWUPD_INSTALL_FLAG_FORCE) == 0) {
g_set_error (error,
FWUPD_ERROR,
FWUPD_ERROR_AC_POWER_REQUIRED,
"Cannot install update when battery "
"is not at least %d%% unless forced",
MINIMUM_BATTERY_PERCENTAGE);
return FALSE;
}
return TRUE;
}