mirror of
https://git.proxmox.com/git/fwupd
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1d8d26d167
This adds a condition that permits updates for devices that don't take any power conditions into account.
123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/*
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* Copyright (C) 2021 Twain Byrnes <binarynewts@google.com>
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* Copyright (C) 2021 George Popoola <gpopoola@google.com>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include <fwupdplugin.h>
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struct FuPluginData {
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GDBusProxy *proxy; /* nullable */
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};
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void
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fu_plugin_init (FuPlugin *plugin)
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{
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fu_plugin_set_build_hash (plugin, FU_BUILD_HASH);
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fu_plugin_alloc_data (plugin, sizeof(FuPluginData));
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}
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void
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fu_plugin_destroy (FuPlugin *plugin)
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{
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FuPluginData *data = fu_plugin_get_data (plugin);
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if (data->proxy != NULL)
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g_object_unref (data->proxy);
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}
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gboolean
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fu_plugin_startup (FuPlugin *plugin, GError **error)
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{
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FuPluginData *data = fu_plugin_get_data (plugin);
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g_autofree gchar *name_owner = NULL;
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/* establish proxy for method call to powerd */
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data->proxy =
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g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
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G_DBUS_PROXY_FLAGS_NONE,
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NULL,
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"org.chromium.PowerManager",
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"/org/chromium/PowerManager",
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"org.chromium.PowerManager",
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NULL,
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error);
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if (data->proxy == NULL) {
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g_prefix_error (error, "failed to establish proxy: ");
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return FALSE;
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}
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name_owner = g_dbus_proxy_get_name_owner (data->proxy);
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if (name_owner == NULL) {
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g_set_error (error,
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FWUPD_ERROR,
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FWUPD_ERROR_NOT_SUPPORTED,
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"no service that owns the name for %s",
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g_dbus_proxy_get_name (data->proxy));
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return FALSE;
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}
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return TRUE;
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}
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gboolean
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fu_plugin_update_prepare (FuPlugin *plugin,
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FwupdInstallFlags flags,
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FuDevice *device,
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GError **error)
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{
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FuContext *ctx = fu_plugin_get_context (plugin);
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FuPluginData *data = fu_plugin_get_data (plugin);
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guint32 power_type = 0;
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guint32 current_state = 0;
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gdouble current_level = 0;
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g_autoptr(GVariant) powerd_response = NULL;
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/* making method call to "GetBatteryState" through the proxy */
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powerd_response = g_dbus_proxy_call_sync (data->proxy,
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"GetBatteryState",
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NULL,
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G_DBUS_CALL_FLAGS_NONE,
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-1,
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NULL,
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error);
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if (powerd_response == NULL) {
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g_prefix_error (error, "battery information was not loaded: ");
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return FALSE;
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}
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/* permit updates when the device does not care about power conditions */
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if (flags & FWUPD_INSTALL_FLAG_IGNORE_POWER)
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return TRUE;
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/* parse and use for battery-check conditions */
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g_variant_get (powerd_response,
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"(uud)",
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&power_type,
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¤t_state,
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¤t_level);
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/* blocking updates if there is no AC power or if battery
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* percentage is too low */
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if (fu_device_has_flag (device, FWUPD_DEVICE_FLAG_REQUIRE_AC) &&
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current_state == FU_BATTERY_STATE_DISCHARGING) {
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g_set_error (error,
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FWUPD_ERROR,
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FWUPD_ERROR_AC_POWER_REQUIRED,
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"Cannot install update without external power "
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"unless forced ");
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return FALSE;
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}
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if (current_level < fu_context_get_battery_threshold (ctx)) {
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g_set_error (error,
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FWUPD_ERROR,
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FWUPD_ERROR_BATTERY_LEVEL_TOO_LOW,
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"Cannot install update when system battery "
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"is not at least %u%% unless forced",
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fu_context_get_battery_threshold (ctx));
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return FALSE;
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}
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return TRUE;
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}
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