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// Copyright 2012 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "power_manager/powerd/daemon.h"
#include <fcntl.h>
#include <inttypes.h>
#include <algorithm>
#include <cmath>
#include <map>
#include <memory>
#include <utility>
#include <base/check.h>
#include <base/check_op.h>
#include <base/files/file_util.h>
#include <base/format_macros.h>
#include <base/functional/bind.h>
#include <base/logging.h>
#include <base/strings/string_number_conversions.h>
#include <base/strings/string_split.h>
#include <base/strings/string_util.h>
#include <base/strings/stringprintf.h>
#include <base/system/sys_info.h>
#include <base/task/sequenced_task_runner.h>
#include <base/threading/platform_thread.h>
#include <base/time/time.h>
#include <brillo/file_utils.h>
#include <brillo/files/file_util.h>
#include <chromeos/dbus/service_constants.h>
#include <chromeos/ec/ec_commands.h>
#include <chromeos/mojo/service_constants.h>
#include <cros_config/cros_config.h>
#include <dbus/bus.h>
#include <dbus/message.h>
#include <libec/charge_control_set_command.h>
#include <libec/charge_current_limit_set_command.h>
#include <libec/ec_command.h>
#include "power_manager/common/activity_logger.h"
#include "power_manager/common/battery_percentage_converter.h"
#include "power_manager/common/metrics_constants.h"
#include "power_manager/common/metrics_sender.h"
#include "power_manager/common/power_constants.h"
#include "power_manager/common/prefs.h"
#include "power_manager/common/tracing.h"
#include "power_manager/common/util.h"
#include "power_manager/powerd/daemon_delegate.h"
#include "power_manager/powerd/metrics_collector.h"
#include "power_manager/powerd/policy/backlight_controller.h"
#include "power_manager/powerd/policy/input_device_controller.h"
#include "power_manager/powerd/policy/shutdown_from_suspend.h"
#include "power_manager/powerd/policy/state_controller.h"
#include "power_manager/powerd/policy/thermal_event_handler.h"
#include "power_manager/powerd/system/acpi_wakeup_helper_interface.h"
#include "power_manager/powerd/system/ambient_light_sensor_manager_interface.h"
#include "power_manager/powerd/system/ambient_light_sensor_watcher_interface.h"
#include "power_manager/powerd/system/ambient_light_sensor_watcher_mojo.h"
#include "power_manager/powerd/system/arc_timer_manager.h"
#include "power_manager/powerd/system/audio_client_interface.h"
#include "power_manager/powerd/system/backlight_interface.h"
#include "power_manager/powerd/system/charge_controller_helper_interface.h"
#include "power_manager/powerd/system/cros_ec_device_event.h"
#include "power_manager/powerd/system/cros_ec_helper_interface.h"
#include "power_manager/powerd/system/dark_resume_interface.h"
#include "power_manager/powerd/system/dbus_wrapper.h"
#include "power_manager/powerd/system/display/display_power_setter.h"
#include "power_manager/powerd/system/display/display_watcher.h"
#include "power_manager/powerd/system/external_ambient_light_sensor_factory_interface.h"
#include "power_manager/powerd/system/input_watcher_interface.h"
#include "power_manager/powerd/system/lockfile_checker.h"
#include "power_manager/powerd/system/peripheral_battery_watcher.h"
#include "power_manager/powerd/system/power_supply.h"
#include "power_manager/powerd/system/smart_discharge_configurator.h"
#include "power_manager/powerd/system/suspend_configurator.h"
#include "power_manager/powerd/system/suspend_freezer.h"
#include "power_manager/powerd/system/thermal/thermal_device.h"
#include "power_manager/powerd/system/udev.h"
#include "power_manager/powerd/system/usb_backlight.h"
#include "power_manager/powerd/system/user_proximity_watcher_interface.h"
#include "power_manager/powerd/system/wake_on_dp_configurator.h"
#include "power_manager/powerd/system/wakeup_source_identifier.h"
#include "power_manager/proto_bindings/idle.pb.h"
#include "power_manager/proto_bindings/policy.pb.h"
#include "power_manager/proto_bindings/user_charging_event.pb.h"
namespace power_manager {
namespace {
// Default values for |*_path_| members (which can be overridden for tests).
const char kDefaultSuspendedStatePath[] =
"/var/lib/power_manager/powerd_suspended";
const char kDefaultWakeupCountPath[] = "/sys/power/wakeup_count";
const char kDefaultSyncOnSuspendPath[] = "/sys/power/sync_on_suspend";
const char kDefaultOobeCompletedPath[] = "/home/chronos/.oobe_completed";
// Directory checked for lockfiles indicating that powerd shouldn't suspend or
// shut down the system (typically due to a firmware update).
const char kPowerOverrideLockfileDir[] = "/run/lock/power_override";
// Basename appended to |run_dir| (see Daemon's c'tor) to produce
// |shutdown_announced_path_|.
const char kShutdownAnnouncedFile[] = "shutdown_announced";
// Basename appended to |run_dir| (see Daemon's c'tor) to produce
// |suspend_announced_path_|.
const char kSuspendAnnouncedFile[] = "suspend_announced";
// Basename appended to |run_dir| (see Daemon's c'tor) to produce
// |suspend_reboot_path_|.
const char kSuspendRebootFile[] = "suspend_reboot";
// Strings for states that powerd cares about from the session manager's
// SessionStateChanged signal. This value is defined in the session_manager
// codebase.
const char kSessionStarted[] = "started";
// After noticing that power management is overridden while suspending, wait up
// to this long for the lockfile(s) to be removed before reporting a suspend
// failure. The event loop is blocked during this period.
constexpr base::TimeDelta kSuspendLockfileTimeout = base::Milliseconds(500);
// Interval between successive polls during kSuspendLockfileTimeout.
constexpr base::TimeDelta kSuspendLockfilePollInterval =
base::Milliseconds(100);
// Interval between attempts to retry shutting the system down while power
// management is overridden, in seconds.
constexpr base::TimeDelta kShutdownLockfileRetryInterval = base::Seconds(5);
// Maximum amount of time to wait for responses to D-Bus method calls to other
// processes.
constexpr base::TimeDelta kSessionManagerDBusTimeout = base::Seconds(3);
constexpr base::TimeDelta kTpmManagerdDBusTimeout = base::Minutes(2);
constexpr base::TimeDelta kResourceManagerDBusTimeout = base::Seconds(3);
constexpr base::TimeDelta kPrivacyScreenServiceDBusTimeoutMs = base::Seconds(3);
// Interval between log messages while user, audio, or video activity is
// ongoing, in seconds.
const int kLogOngoingActivitySec = 180;
// Time after the last report from Chrome of video or user activity at which
// point a message is logged about the activity having stopped. Chrome reports
// these every five seconds, but longer delays here reduce the amount of log
// spam due to sporadic activity.
const int kLogVideoActivityStoppedDelaySec = 20;
const int kLogUserActivityStoppedDelaySec = 20;
// Delay to wait before logging that hovering has stopped. This is ideally
// smaller than kKeyboardBacklightKeepOnMsPref; otherwise the backlight can be
// turned off before the hover-off event that triggered it is logged.
const int64_t kLogHoveringStoppedDelaySec = 20;
// Domain for D-Bus error messages.
const char kErrorDomain[] = "powerd";
// Type for D-Bus error messages.
const char kInternalError[] = "internal_error";
// Cros Config path to search in for the PSU type.
const char kHardwareProperties[] = "/hardware-properties";
// Cros Config property to fetch to see if the system has a battery (not
// counting back-up power supplies for short power outages).
const char kPSUType[] = "psu-type";
// PSU Type for Cros Config that refers to a system that is designed to run off
// the battery as a primary use case.
const char kBattery[] = "battery";
// When we're making sync calls to the Adaptive Charging ML Service, use a
// shorter timeout.
const int kAdaptiveChargingSyncDBusTimeoutMs = 3000;
#if USE_IIOSERVICE
constexpr base::TimeDelta kReconnectServiceManagerDelay = base::Seconds(1);
#endif // USE_IIOSERVICE
// MCU type for Prism in CrOS config
const char kPrismRgbController[] = "prism_rgb_controller";
// Passes |method_call| to |handler| and passes the response to
// |response_sender|. If |handler| returns NULL, an empty response is
// created and sent.
void HandleSynchronousDBusMethodCall(
base::OnceCallback<std::unique_ptr<dbus::Response>(dbus::MethodCall*)>
handler,
dbus::MethodCall* method_call,
dbus::ExportedObject::ResponseSender response_sender) {
std::unique_ptr<dbus::Response> response =
std::move(handler).Run(method_call);
if (!response) {
response = dbus::Response::FromMethodCall(method_call);
}
std::move(response_sender).Run(std::move(response));
}
// Creates a new "invalid args" reply to |method_call|.
std::unique_ptr<dbus::Response> CreateInvalidArgsError(
dbus::MethodCall* method_call, std::string message) {
return std::unique_ptr<dbus::Response>(dbus::ErrorResponse::FromMethodCall(
method_call, DBUS_ERROR_INVALID_ARGS, message));
}
std::string PrivacyScreenStateToString(
const privacy_screen::PrivacyScreenSetting_PrivacyScreenState& state) {
switch (state) {
case privacy_screen::PrivacyScreenSetting_PrivacyScreenState_DISABLED:
return "disabled";
case privacy_screen::PrivacyScreenSetting_PrivacyScreenState_ENABLED:
return "enabled";
case privacy_screen::PrivacyScreenSetting_PrivacyScreenState_NOT_SUPPORTED:
return "not supported";
default:
NOTREACHED_IN_MIGRATION()
<< "Unhandled privacy screen state " << static_cast<int>(state);
return base::StringPrintf("unknown (%d)", static_cast<int>(state));
}
}
} // namespace
// static
constexpr char Daemon::kAlreadyRanFileName[];
// Performs actions requested by |state_controller_|. The reason that
// this is a nested class of Daemon rather than just being implemented as
// part of Daemon is to avoid method naming conflicts.
class Daemon::StateControllerDelegate
: public policy::StateController::Delegate {
public:
explicit StateControllerDelegate(Daemon* daemon) : daemon_(daemon) {}
StateControllerDelegate(const StateControllerDelegate&) = delete;
StateControllerDelegate& operator=(const StateControllerDelegate&) = delete;
~StateControllerDelegate() override { daemon_ = nullptr; }
// Overridden from policy::StateController::Delegate:
bool IsUsbInputDeviceConnected() override {
return daemon_->input_watcher_->IsUSBInputDeviceConnected();
}
bool IsOobeCompleted() override {
return base::PathExists(base::FilePath(daemon_->oobe_completed_path_));
}
bool IsHdmiAudioActive() override {
return daemon_->audio_client_ ? daemon_->audio_client_->GetHdmiActive()
: false;
}
bool IsHeadphoneJackPlugged() override {
return daemon_->audio_client_
? daemon_->audio_client_->GetHeadphoneJackPlugged()
: false;
}
void DimScreen() override { daemon_->SetBacklightsDimmedForInactivity(true); }
void UndimScreen() override {
daemon_->SetBacklightsDimmedForInactivity(false);
}
void TurnScreenOff() override {
daemon_->SetBacklightsOffForInactivity(true);
}
void TurnScreenOn() override {
daemon_->SetBacklightsOffForInactivity(false);
}
void LockScreen() override {
dbus::MethodCall method_call(login_manager::kSessionManagerInterface,
login_manager::kSessionManagerLockScreen);
daemon_->dbus_wrapper_->CallMethodSync(daemon_->session_manager_dbus_proxy_,
&method_call,
kSessionManagerDBusTimeout);
}
void Suspend(policy::StateController::ActionReason reason) override {
SuspendImminent::Reason suspend_reason = SuspendImminent_Reason_OTHER;
switch (reason) {
case policy::StateController::ActionReason::IDLE:
suspend_reason = SuspendImminent_Reason_IDLE;
break;
case policy::StateController::ActionReason::LID_CLOSED:
suspend_reason = SuspendImminent_Reason_LID_CLOSED;
break;
}
daemon_->Suspend(suspend_reason, std::nullopt, base::TimeDelta(),
SuspendFlavor::SUSPEND_DEFAULT);
}
void StopSession() override {
// This session manager method takes a string argument, although it
// doesn't currently do anything with it.
dbus::MethodCall method_call(login_manager::kSessionManagerInterface,
login_manager::kSessionManagerStopSession);
dbus::MessageWriter writer(&method_call);
writer.AppendString("");
daemon_->dbus_wrapper_->CallMethodSync(daemon_->session_manager_dbus_proxy_,
&method_call,
kSessionManagerDBusTimeout);
}
void ShutDown() override {
daemon_->ShutDown(ShutdownMode::POWER_OFF,
ShutdownReason::STATE_TRANSITION);
}
void ReportUserActivityMetrics() override {
daemon_->metrics_collector_->GenerateUserActivityMetrics();
}
void ReportDimEventMetrics(metrics::DimEvent sample) override {
daemon_->metrics_collector_->GenerateDimEventMetrics(sample);
}
void ReportLockEventMetrics(metrics::LockEvent sample) override {
daemon_->metrics_collector_->GenerateLockEventMetrics(sample);
}
void ReportHpsEventDurationMetrics(const std::string& event_name,
base::TimeDelta duration) override {
daemon_->metrics_collector_->GenerateHpsEventDurationMetrics(event_name,
duration);
}
private:
Daemon* daemon_; // weak
};
Daemon::Daemon(DaemonDelegate* delegate, const base::FilePath& run_dir)
: delegate_(delegate),
state_controller_delegate_(new StateControllerDelegate(this)),
state_controller_(new policy::StateController),
input_event_handler_(new policy::InputEventHandler),
input_device_controller_(new policy::InputDeviceController),
shutdown_from_suspend_(std::make_unique<policy::ShutdownFromSuspend>()),
suspender_(new policy::Suspender),
bluetooth_controller_(std::make_unique<policy::BluetoothController>()),
wifi_controller_(std::make_unique<policy::WifiController>()),
cellular_controller_(std::make_unique<policy::CellularController>()),
metrics_collector_(new metrics::MetricsCollector),
arc_timer_manager_(std::make_unique<system::ArcTimerManager>()),
wakeup_count_path_(kDefaultWakeupCountPath),
sync_on_suspend_path_(kDefaultSyncOnSuspendPath),
oobe_completed_path_(kDefaultOobeCompletedPath),
cros_ec_path_(ec::kCrosEcPath),
run_dir_(run_dir),
suspended_state_path_(kDefaultSuspendedStatePath),
shutdown_announced_path_(run_dir.Append(kShutdownAnnouncedFile)),
suspend_announced_path_(run_dir.Append(kSuspendAnnouncedFile)),
suspend_reboot_path_(run_dir.Append(kSuspendRebootFile)),
already_ran_path_(run_dir.Append(Daemon::kAlreadyRanFileName)),
video_activity_logger_(new PeriodicActivityLogger(
"Video activity",
base::Seconds(kLogVideoActivityStoppedDelaySec),
base::Seconds(kLogOngoingActivitySec))),
user_activity_logger_(new PeriodicActivityLogger(
"User activity",
base::Seconds(kLogUserActivityStoppedDelaySec),
base::Seconds(kLogOngoingActivitySec))),
audio_activity_logger_(
new StartStopActivityLogger("Audio activity",
base::TimeDelta(),
base::Seconds(kLogOngoingActivitySec))),
hovering_logger_(new StartStopActivityLogger(
"Hovering",
base::Seconds(kLogHoveringStoppedDelaySec),
base::TimeDelta())),
weak_ptr_factory_(this) {}
Daemon::~Daemon() {
if (dbus_wrapper_) {
dbus_wrapper_->RemoveObserver(this);
}
if (audio_client_) {
audio_client_->RemoveObserver(this);
}
if (power_supply_) {
power_supply_->RemoveObserver(this);
}
battery_saver_controller_.RemoveObserver(this);
}
void Daemon::Init() {
// Check if this is the first run of powerd after boot.
first_run_after_boot_ = !base::PathExists(already_ran_path_);
if (first_run_after_boot_) {
if (!brillo::TouchFile(already_ran_path_)) {
PLOG(ERROR) << "Couldn't create " << already_ran_path_.value();
}
}
// If the suspend_reboot file exists at startup, it means that powerd must
// have been restarted before the file could be unlinked shortly after
// resume. This probably means there was a crash sometime between when
// suspend started and resume finished.
if (base::PathExists(suspend_reboot_path_)) {
LOG(INFO) << "Detected suspend_reboot file";
brillo::DeleteFile(suspend_reboot_path_);
metrics_collector_->SendSuspendJourneyResult(SuspendJourneyResult::REBOOT);
}
prefs_ = delegate_->CreatePrefs();
InitTracing();
InitDBus();
factory_mode_ = BoolPrefIsTrue(kFactoryModePref);
if (factory_mode_) {
LOG(INFO) << "Factory mode enabled; most functionality will be disabled";
}
platform_features_ = delegate_->CreatePlatformFeatures(dbus_wrapper_.get());
metrics_sender_ = delegate_->CreateMetricsSender();
udev_ = delegate_->CreateUdev();
input_watcher_ = delegate_->CreateInputWatcher(prefs_.get(), udev_.get());
suspend_configurator_ = delegate_->CreateSuspendConfigurator(
platform_features_, prefs_.get(), run_dir_);
suspend_freezer_ = delegate_->CreateSuspendFreezer(prefs_.get());
wakeup_source_identifier_ =
std::make_unique<system::WakeupSourceIdentifier>(udev_.get());
const TabletMode tablet_mode = input_watcher_->GetTabletMode();
if (tablet_mode == TabletMode::ON) {
LOG(INFO) << "Tablet mode enabled at startup";
}
const LidState lid_state = input_watcher_->QueryLidState();
if (lid_state == LidState::CLOSED) {
LOG(INFO) << "Lid closed at startup";
}
#if USE_IIOSERVICE
sensor_service_handler_ = delegate_->CreateSensorServiceHandler();
if (!disable_mojo_for_testing_) {
ConnectToMojoServiceManager();
}
if (BoolPrefIsTrue(kExternalAmbientLightSensorPref)) {
ambient_light_sensor_watcher_ = delegate_->CreateAmbientLightSensorWatcher(
sensor_service_handler_.get());
external_ambient_light_sensor_factory_ =
delegate_->CreateExternalAmbientLightSensorFactory(
static_cast<system::AmbientLightSensorWatcherMojo*>(
ambient_light_sensor_watcher_.get()));
}
#endif // USE_IIOSERVICE
display_watcher_ = delegate_->CreateDisplayWatcher(udev_.get());
display_power_setter_ =
delegate_->CreateDisplayPowerSetter(dbus_wrapper_.get());
ec_command_factory_ = delegate_->CreateEcCommandFactory();
machine_quirks_ = delegate_->CreateMachineQuirks(prefs_.get());
machine_quirks_->ApplyQuirksToPrefs();
// Ignore the ALS and backlights in factory mode.
if (!factory_mode_) {
#if USE_IIOSERVICE
light_sensor_manager_ = delegate_->CreateAmbientLightSensorManager(
prefs_.get(), sensor_service_handler_.get());
#endif // USE_IIOSERVICE
if (BoolPrefIsTrue(kExternalDisplayOnlyPref)) {
display_backlight_controller_ =
delegate_->CreateExternalBacklightController(
prefs_.get(), ambient_light_sensor_watcher_.get(),
external_ambient_light_sensor_factory_.get(),
display_watcher_.get(), display_power_setter_.get(),
dbus_wrapper_.get());
} else {
display_backlight_ = delegate_->CreateInternalBacklight(
base::FilePath(kInternalBacklightPath), kInternalBacklightPattern);
if (!display_backlight_) {
LOG(ERROR) << "Failed to initialize display backlight under "
<< kInternalBacklightPath << " using pattern "
<< kInternalBacklightPattern;
} else {
display_backlight_controller_ =
delegate_->CreateInternalBacklightController(
display_backlight_.get(), prefs_.get(),
light_sensor_manager_
? light_sensor_manager_->GetSensorForInternalBacklight()
: nullptr,
display_power_setter_.get(), dbus_wrapper_.get(), lid_state);
}
}
if (display_backlight_controller_) {
all_backlight_controllers_.push_back(display_backlight_controller_.get());
}
if (BoolPrefIsTrue(kHasKeyboardBacklightPref)) {
auto config = std::make_unique<brillo::CrosConfig>();
std::string value;
if (config->GetString("/keyboard", "mcutype", &value) &&
value == kPrismRgbController) {
LOG(INFO) << "Attempting to create RGB keyboard backlight";
keyboard_backlight_ =
std::make_unique<system::UsbBacklight>(udev_.get());
} else {
LOG(INFO) << "Attempting to create PluggableInternalKeyboardBacklight";
keyboard_backlight_ = delegate_->CreatePluggableInternalBacklight(
udev_.get(), kKeyboardBacklightUdevSubsystem,
base::FilePath(kKeyboardBacklightPath), kKeyboardBacklightPattern);
}
keyboard_backlight_controller_ =
delegate_->CreateKeyboardBacklightController(
keyboard_backlight_.get(), prefs_.get(),
light_sensor_manager_
? light_sensor_manager_->GetSensorForKeyboardBacklight()
: nullptr,
dbus_wrapper_.get(), lid_state, tablet_mode);
all_backlight_controllers_.push_back(
keyboard_backlight_controller_.get());
}
}
prefs_->GetBool(kManualEventlogAddPref, &log_suspend_manually_);
prefs_->GetBool(kSuspendToIdlePref, &suspend_to_idle_);
battery_percentage_converter_ =
BatteryPercentageConverter::CreateFromPrefs(prefs_.get());
power_supply_ = delegate_->CreatePowerSupply(
base::FilePath(kPowerStatusPath), cros_ec_path_,
ec_command_factory_.get(), prefs_.get(), udev_.get(), dbus_wrapper_.get(),
battery_percentage_converter_.get());
power_supply_->AddObserver(this);
if (!power_supply_->RefreshImmediately()) {
LOG(ERROR) << "Initial power supply refresh failed; brace for weirdness";
}
const system::PowerStatus power_status = power_supply_->GetPowerStatus();
metrics_collector_->Init(prefs_.get(), display_backlight_controller_.get(),
keyboard_backlight_controller_.get(), power_status,
first_run_after_boot_);
// Only create the Adaptive Charging Controller for battery powered systems.
std::string psu_type;
prefs_->GetExternalString(kHardwareProperties, kPSUType, &psu_type);
if (psu_type == kBattery) {
adaptive_charging_controller_ = delegate_->CreateAdaptiveChargingController(
this, display_backlight_controller_.get(), input_watcher_.get(),
power_supply_.get(), dbus_wrapper_.get(), platform_features_,
prefs_.get());
}
dark_resume_ = delegate_->CreateDarkResume(prefs_.get(),
wakeup_source_identifier_.get());
shutdown_from_suspend_->Init(prefs_.get(), power_supply_.get());
suspender_->Init(this, dbus_wrapper_.get(), dark_resume_.get(),
display_watcher_.get(), wakeup_source_identifier_.get(),
shutdown_from_suspend_.get(),
adaptive_charging_controller_.get(), prefs_.get());
input_event_handler_->Init(input_watcher_.get(), this, display_watcher_.get(),
dbus_wrapper_.get(), prefs_.get());
acpi_wakeup_helper_ = delegate_->CreateAcpiWakeupHelper();
ec_helper_ = delegate_->CreateCrosEcHelper();
input_device_controller_->Init(display_backlight_controller_.get(),
udev_.get(), acpi_wakeup_helper_.get(),
ec_helper_.get(), lid_state, tablet_mode,
DisplayMode::NORMAL, prefs_.get());
battery_saver_controller_.Init(*dbus_wrapper_);
battery_saver_controller_.AddObserver(this);
const PowerSource power_source =
power_status.line_power_on ? PowerSource::AC : PowerSource::BATTERY;
state_controller_->Init(state_controller_delegate_.get(), prefs_.get(),
dbus_wrapper_.get(), power_source, lid_state);
if (BoolPrefIsTrue(kUseCrasPref)) {
audio_client_ = delegate_->CreateAudioClient(dbus_wrapper_.get(), run_dir_);
audio_client_->AddObserver(this);
}
bluetooth_controller_->Init(udev_.get(), platform_features_,
dbus_wrapper_.get(), tablet_mode);
wifi_controller_->Init(this, prefs_.get(), udev_.get(), tablet_mode);
cellular_controller_->Init(this, prefs_.get(), dbus_wrapper_.get());
peripheral_battery_watcher_ = delegate_->CreatePeripheralBatteryWatcher(
dbus_wrapper_.get(), udev_.get());
power_override_lockfile_checker_ = delegate_->CreateLockfileChecker(
base::FilePath(kPowerOverrideLockfileDir), {});
user_proximity_watcher_ = delegate_->CreateUserProximityWatcher(
prefs_.get(), udev_.get(), tablet_mode, sensor_service_handler_.get());
user_proximity_handler_ = std::make_unique<policy::UserProximityHandler>();
user_proximity_handler_->Init(user_proximity_watcher_.get(),
wifi_controller_.get(),
cellular_controller_.get(), prefs_.get());
arc_timer_manager_->Init(dbus_wrapper_.get());
if (BoolPrefIsTrue(kHasChargeControllerPref)) {
charge_controller_helper_ = delegate_->CreateChargeControllerHelper();
charge_controller_ = std::make_unique<policy::ChargeController>(),
charge_controller_->Init(charge_controller_helper_.get(),
battery_percentage_converter_.get());
}
// Asynchronously undo the previous force-lid-open request to the EC (if there
// was one).
if (!factory_mode_ && BoolPrefIsTrue(kUseLidPref)) {
RunSetuidHelper("set_force_lid_open", "--noforce_lid_open", false);
}
thermal_devices_ = delegate_->CreateThermalDevices();
std::vector<system::ThermalDeviceInterface*> weak_thermal_device;
for (const auto& thermal_device : thermal_devices_) {
weak_thermal_device.push_back(thermal_device.get());
}
thermal_event_handler_ = std::make_unique<policy::ThermalEventHandler>(
weak_thermal_device, dbus_wrapper_.get());
thermal_event_handler_->Init();
// This needs to happen *after* all D-Bus methods are exported:
// https://crbug.com/331431
CHECK(dbus_wrapper_->PublishService()) << "Failed to publish D-Bus service";
// configure wake on dp only if the preference is set.
bool wake_on_dp = false;
if (prefs_->GetBool(kWakeOnDpPref, &wake_on_dp)) {
system::ConfigureWakeOnDp(wake_on_dp);
}
// Configure wake for the EC.
if (acpi_wakeup_helper_->IsSupported()) {
acpi_wakeup_helper_->SetWakeupEnabled("CREC", true);
}
// Configure Smart Discharge in EC.
int64_t to_zero_hr = -1, cutoff_ua = -1, hibernate_ua = -1;
prefs_->GetInt64(kSmartDischargeToZeroHrPref, &to_zero_hr);
prefs_->GetInt64(kCutoffPowerUaPref, &cutoff_ua);
prefs_->GetInt64(kHibernatePowerUaPref, &hibernate_ua);
system::ConfigureSmartDischarge(to_zero_hr, cutoff_ua, hibernate_ua);
// Enable EC to send WLC event.
// Kernel will create udev events on WLC status change.
system::EnableCrosEcDeviceEvent(EC_DEVICE_EVENT_WLC, true);
// Call this last to ensure that all of our members are already initialized.
OnPowerStatusUpdate();
}
bool Daemon::TriggerRetryShutdownTimerForTesting() {
if (!retry_shutdown_for_lockfile_timer_.IsRunning()) {
return false;
}
retry_shutdown_for_lockfile_timer_.user_task().Run();
return true;
}
#if USE_IIOSERVICE
void Daemon::ConnectToMojoServiceManager() {
TRACE_EVENT("power", "Daemon::ConnectToMojoServiceManager");
DCHECK(!service_manager_.is_bound());
auto service_manager_remote =
chromeos::mojo_service_manager::ConnectToMojoServiceManager();
if (!service_manager_remote) {
LOG(ERROR) << "Failed to connect to Mojo Service Manager. Retry in: "
<< kReconnectServiceManagerDelay;
ReconnectToMojoServiceManagerWithDelay();
return;
}
service_manager_.Bind(std::move(service_manager_remote));
service_manager_.set_disconnect_with_reason_handler(base::BindOnce(
&Daemon::OnServiceManagerDisconnect, base::Unretained(this)));
RequestIioSensor();
}
void Daemon::ReconnectToMojoServiceManagerWithDelay() {
TRACE_EVENT("power", "Daemon::ReconnectToMojoServiceManagerWithDelay");
base::SequencedTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&Daemon::ConnectToMojoServiceManager,
base::Unretained(this)),
kReconnectServiceManagerDelay);
}
void Daemon::RequestIioSensor() {
TRACE_EVENT("power", "Daemon::RequestIioSensor");
if (!service_manager_.is_bound()) {
return;
}
mojo::PendingRemote<cros::mojom::SensorService> sensor_service_remote;
service_manager_->Request(
chromeos::mojo_services::kIioSensor, std::nullopt,
sensor_service_remote.InitWithNewPipeAndPassReceiver().PassPipe());
// There might be race conditions when reconnecting iioservice and Mojo
// Service Manager, and this function might be called more than once. But it's
// fine as SensorServiceHandler::SetUpChannel will ignore the duplicated mojo
// pipes.
sensor_service_handler_->SetUpChannel(
std::move(sensor_service_remote),
base::BindOnce(&Daemon::OnIioSensorDisconnect, base::Unretained(this)));
}
void Daemon::OnServiceManagerDisconnect(uint32_t custom_reason,
const std::string& message) {
auto error = static_cast<chromeos::mojo_service_manager::mojom::ErrorCode>(
custom_reason);
LOG(ERROR) << "ServiceManagerDisconnected, error: " << error
<< ", message: " << message;
service_manager_.reset();
sensor_service_handler_->ResetSensorService(false);
ReconnectToMojoServiceManagerWithDelay();
}
void Daemon::OnIioSensorDisconnect(base::TimeDelta delay) {
TRACE_EVENT("power", "Daemon::OnIioSensorDisconnect");
DCHECK(service_manager_.is_bound());
base::SequencedTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&Daemon::RequestIioSensor, base::Unretained(this)), delay);
}
#endif // USE_IIOSERVICE
bool Daemon::BoolPrefIsTrue(const std::string& name) const {
bool value = false;
return prefs_->GetBool(name, &value) && value;
}
bool Daemon::SuspendAndShutdownAreBlocked(std::string* details_out) {
const std::vector<base::FilePath> paths =
power_override_lockfile_checker_->GetValidLockfiles();
*details_out = util::JoinPaths(paths, ", ");
return !paths.empty();
}
int Daemon::RunSetuidHelper(const std::string& action,
const std::string& additional_args,
bool wait_for_completion) {
std::string command = kSetuidHelperPath + std::string(" --action=" + action);
if (!additional_args.empty()) {
command += " " + additional_args;
}
if (wait_for_completion) {
return delegate_->Run(command.c_str());
} else {
delegate_->Launch(command.c_str());
return 0;
}
}
void Daemon::HandleLidClosed() {
LOG(INFO) << "Lid closed";
// It is important that we notify InputDeviceController first so that it can
// inhibit input devices quickly. StateController will issue a blocking call
// to Chrome which can take longer than a second.
input_device_controller_->SetLidState(LidState::CLOSED);
state_controller_->HandleLidStateChange(LidState::CLOSED);
for (auto controller : all_backlight_controllers_) {
controller->HandleLidStateChange(LidState::CLOSED);
}
dbus_wrapper_->EmitBareSignal(kLidClosedSignal);
}
void Daemon::HandleLidOpened() {
LOG(INFO) << "Lid opened";
suspender_->HandleLidOpened();
state_controller_->HandleLidStateChange(LidState::OPEN);
input_device_controller_->SetLidState(LidState::OPEN);
for (auto controller : all_backlight_controllers_) {
controller->HandleLidStateChange(LidState::OPEN);
}
dbus_wrapper_->EmitBareSignal(kLidOpenedSignal);
}
void Daemon::HandlePowerButtonEvent(ButtonState state) {
// Don't log spammy repeat events if we see them.
if (state != ButtonState::REPEAT) {
LOG(INFO) << "Power button " << ButtonStateToString(state);
}
metrics_collector_->HandlePowerButtonEvent(state);
if (state == ButtonState::DOWN) {
delegate_->Launch("sync");
for (auto controller : all_backlight_controllers_) {
controller->HandlePowerButtonPress();
}
}
}
void Daemon::HandleHoverStateChange(bool hovering) {
if (hovering) {
hovering_logger_->OnActivityStarted();
} else {
hovering_logger_->OnActivityStopped();
}
for (auto controller : all_backlight_controllers_) {
controller->HandleHoverStateChange(hovering);
}
}
void Daemon::HandleTabletModeChange(TabletMode mode) {
DCHECK_NE(mode, TabletMode::UNSUPPORTED);
LOG(INFO) << "Tablet mode " << TabletModeToString(mode);
state_controller_->HandleTabletModeChange(mode);
input_device_controller_->SetTabletMode(mode);
for (auto controller : all_backlight_controllers_) {
controller->HandleTabletModeChange(mode);
}
user_proximity_watcher_->HandleTabletModeChange(mode);
bluetooth_controller_->HandleTabletModeChange(mode);
wifi_controller_->HandleTabletModeChange(mode);
cellular_controller_->HandleTabletModeChange(mode);
}
void Daemon::ShutDownForPowerButtonWithNoDisplay() {
LOG(INFO) << "Shutting down due to power button press while no display is "
<< "connected";
metrics_collector_->HandlePowerButtonEvent(ButtonState::DOWN);
ShutDown(ShutdownMode::POWER_OFF, ShutdownReason::USER_REQUEST);
}
void Daemon::HandleMissingPowerButtonAcknowledgment() {
LOG(INFO) << "Didn't receive power button acknowledgment from Chrome";
}
void Daemon::ReportPowerButtonAcknowledgmentDelay(base::TimeDelta delay) {
metrics_collector_->SendPowerButtonAcknowledgmentDelayMetric(delay);
}
int Daemon::GetInitialSuspendId() {
// Take powerd's PID modulo 2**15 (/proc/sys/kernel/pid_max is currently
// 2**15, but just in case...) and multiply it by 2**16, leaving it able to
// fit in a signed 32-bit int. This allows for 2**16 suspend attempts and
// suspend delays per powerd run before wrapping or intruding on another
// run's ID range (neither of which should be particularly problematic, but
// doing this reduces the chances of a confused client that's using stale
// IDs from a previous powerd run being able to conflict with the new run's
// IDs).
return (delegate_->GetPid() % 32768) * 65536 + 1;
}
int Daemon::GetInitialDarkSuspendId() {
// We use the upper half of the suspend ID space for dark suspend attempts.
// Assuming that we will go through dark suspend IDs faster than the regular
// suspend IDs, we should never have a collision between the suspend ID and
// the dark suspend ID until the dark suspend IDs wrap around.
return GetInitialSuspendId() + 32768;
}
bool Daemon::IsLidClosedForSuspend() {
return input_watcher_->QueryLidState() == LidState::CLOSED;
}
bool Daemon::ReadSuspendWakeupCount(uint64_t* wakeup_count) {
DCHECK(wakeup_count);
LOG(INFO) << "Reading wakeup count from " << wakeup_count_path_.value();
if (!util::ReadUint64File(wakeup_count_path_, wakeup_count)) {
return false;
}
LOG(INFO) << "Read wakeup count " << *wakeup_count;
return true;
}
void Daemon::SetSuspendAnnounced(bool announced) {
if (announced) {
if (!brillo::TouchFile(suspend_announced_path_)) {
PLOG(ERROR) << "Couldn't create " << suspend_announced_path_.value();
}
} else {
if (!brillo::DeleteFile(suspend_announced_path_)) {
PLOG(ERROR) << "Couldn't delete " << suspend_announced_path_.value();
}
}
}
bool Daemon::GetSuspendAnnounced() {
return base::PathExists(suspend_announced_path_);
}
void Daemon::PrepareToSuspend() {
// Before announcing the suspend request, notify the backlight controller so
// it can turn the backlight off and tell the kernel to resume the current
// level after resuming. This must occur before Chrome is told that the
// system is going to suspend (Chrome turns the display back on while leaving
// the backlight off).
SetBacklightsSuspended(true);
power_supply_->SetSuspended(true);
metrics_collector_->PrepareForSuspend();
}
void Daemon::SuspendAudio() {
if (audio_client_) {
audio_client_->SetSuspended(true);
}
}
void Daemon::ResumeAudio() {
if (audio_client_) {
audio_client_->SetSuspended(false);
}
}
policy::Suspender::Delegate::SuspendResult Daemon::DoSuspend(
uint64_t wakeup_count, bool wakeup_count_valid, base::TimeDelta duration) {
// If power management is overridden by a lockfile, spin for a bit to wait for
// the process to finish: http://crosbug.com/p/38947
base::TimeDelta elapsed;
std::string details;
while (SuspendAndShutdownAreBlocked(&details)) {
if (elapsed >= kSuspendLockfileTimeout) {
LOG(INFO) << "Aborting suspend attempt for lockfile(s): " << details;
return policy::Suspender::Delegate::SuspendResult::FAILURE;
}
elapsed += kSuspendLockfilePollInterval;
base::PlatformThread::Sleep(kSuspendLockfilePollInterval);
}
const system::PowerStatus status = power_supply_->GetPowerStatus();
// Touch a file that crash-reporter can inspect later to determine
// whether the system was suspended while an unclean shutdown
// occurred. If the file already exists, assume that crash-reporter
// hasn't seen it yet and avoid unlinking it after resume.
base::FilePath suspended_state_path = suspended_state_path_;
created_suspended_state_file_ = false;
if (!base::PathExists(suspended_state_path)) {
if (brillo::TouchFile(suspended_state_path)) {
created_suspended_state_file_ = true;
} else {
PLOG(ERROR) << "Unable to create " << suspended_state_path.value();
}
}
// This command is run synchronously to ensure that it finishes before the
// system is suspended.
if (log_suspend_manually_) {
RunSetuidHelper("eventlog_add", "--eventlog_code=0xa7", true);
}
std::vector<std::string> args;
if (wakeup_count_valid) {
args.push_back("--suspend_wakeup_count_valid");
args.push_back(
base::StringPrintf("--suspend_wakeup_count=%" PRIu64, wakeup_count));
}
if (suspend_to_idle_) {
args.push_back("--suspend_to_idle");
}
// Sync filesystems since outstanding operations can significantly delay
// freeze, causing it to time out.
sync();
system::FreezeResult freeze_result =
suspend_freezer_->FreezeUserspace(wakeup_count, wakeup_count_valid);
if (freeze_result == system::FreezeResult::FAILURE) {
// The kernel may succeed in freezing the rest of userspace, but even if it
// doesn't, it will provide better logging, detailed stack traces, for our
// crash reports.
LOG(ERROR) << "Failed to freeze userspace processes. Attempting suspend "
<< "anyways";
} else if (freeze_result == system::FreezeResult::CANCELED) {
if (!suspend_freezer_->ThawProcesses()) {
LOG(ERROR) << "Failed to thaw userspace after canceled suspend";
}
return policy::Suspender::Delegate::SuspendResult::CANCELED;
}
wakealarm_time_ = suspend_configurator_->PrepareForSuspend(duration);
// Create a file that will be persisted if the device crashes on suspend or
// resume. Delete it when this function returns.
// Note that this file seems oddly similar to suspended_state, however that
// file is used by the unclean shutdown detector, so we can't delete it
// when this function returns.
if (!brillo::TouchFile(suspend_reboot_path_)) {
PLOG(ERROR) << "Unable to create " << suspend_reboot_path_.value();
}
auto suspend_reboot_deleter = base::ScopedClosureRunner(base::BindOnce(
[](base::FilePath path) {
if (base::PathExists(path) && !brillo::DeleteFile(path)) {
PLOG(ERROR) << "Couldn't delete " << path.value();
}
},
suspend_reboot_path_));
const int exit_code =
RunSetuidHelper("suspend", base::JoinString(args, " "), true);
LOG(INFO) << "powerd_suspend returned " << exit_code;
if (log_suspend_manually_) {
RunSetuidHelper("eventlog_add", "--eventlog_code=0xa8", false);
}
if (created_suspended_state_file_) {
if (!brillo::DeleteFile(base::FilePath(suspended_state_path))) {
PLOG(ERROR) << "Failed to delete " << suspended_state_path.value();
}
}
bool thaw_userspace_succ = suspend_freezer_->ThawProcesses();
bool undo_prep_suspend_succ = suspend_configurator_->UndoPrepareForSuspend();
if (!(thaw_userspace_succ && undo_prep_suspend_succ)) {
return policy::Suspender::Delegate::SuspendResult::FAILURE;
}
// These exit codes are defined in powerd/powerd_suspend.
switch (exit_code) {
case 0:
return policy::Suspender::Delegate::SuspendResult::SUCCESS;
case 1:
return policy::Suspender::Delegate::SuspendResult::FAILURE;
case 2: // Wakeup event received before write to wakeup_count.
case 3: // Wakeup event received after write to wakeup_count.
return policy::Suspender::Delegate::SuspendResult::CANCELED;
default:
LOG(ERROR) << "Treating unexpected exit code " << exit_code
<< " as suspend failure";
return policy::Suspender::Delegate::SuspendResult::FAILURE;
}
}
void Daemon::UndoPrepareToSuspend(bool success, int num_suspend_attempts) {
LidState lid_state = input_watcher_->QueryLidState();
// Update the lid state first so that resume does not turn the internal
// backlight on if the lid is still closed on resume.
for (auto controller : all_backlight_controllers_) {
controller->HandleLidStateChange(lid_state);
}
// Let State controller know about resume with the latest lid state.
state_controller_->HandleResume(lid_state);
// Resume the backlight right after announcing resume. This might be where we
// turn on the display, so we want to do this as early as possible. This
// happens when we idle suspend (and the requested power state in Chrome is
// off for the displays).
SetBacklightsSuspended(false);
power_supply_->SetSuspended(false);
if (success) {
metrics_collector_->HandleResume(num_suspend_attempts);
} else if (num_suspend_attempts > 0) {
metrics_collector_->HandleCanceledSuspendRequest(num_suspend_attempts);
}
}
void Daemon::ApplyQuirksBeforeSuspend() {
bluetooth_controller_->ApplyAutosuspendQuirk();
}
void Daemon::UnapplyQuirksAfterSuspend() {
bluetooth_controller_->UnapplyAutosuspendQuirk();
}
void Daemon::GenerateDarkResumeMetrics(
const std::vector<policy::Suspender::DarkResumeInfo>&
dark_resume_wake_durations,
base::TimeDelta suspend_duration) {
metrics_collector_->GenerateDarkResumeMetrics(dark_resume_wake_durations,
suspend_duration);
}
void Daemon::ShutDownForFailedSuspend() {
ShutDown(ShutdownMode::POWER_OFF, ShutdownReason::SUSPEND_FAILED);
}
void Daemon::ShutDownFromSuspend() {
ShutDown(ShutdownMode::POWER_OFF, ShutdownReason::SHUTDOWN_FROM_SUSPEND);
}
void Daemon::SetWifiTransmitPower(RadioTransmitPower power,
WifiRegDomain domain,
TriggerSource source) {
const std::string power_arg = (power == RadioTransmitPower::LOW)
? "--wifi_transmit_power_tablet"
: "--nowifi_transmit_power_tablet";
std::string domain_arg = "--wifi_transmit_power_domain=none";
switch (domain) {
case WifiRegDomain::FCC:
domain_arg = "--wifi_transmit_power_domain=fcc";
break;
case WifiRegDomain::EU:
domain_arg = "--wifi_transmit_power_domain=eu";
break;
case WifiRegDomain::REST_OF_WORLD:
domain_arg = "--wifi_transmit_power_domain=rest-of-world";
break;
default:
break;
}
std::string source_arg = "--wifi_transmit_power_source=unknown";
switch (source) {
case TriggerSource::INIT:
source_arg = "--wifi_transmit_power_source=init";
break;
case TriggerSource::TABLET_MODE:
source_arg = "--wifi_transmit_power_source=tablet_mode";
break;
case TriggerSource::REG_DOMAIN:
source_arg = "--wifi_transmit_power_source=reg_domain";
break;
case TriggerSource::UDEV_EVENT:
source_arg = "--wifi_transmit_power_source=udev_event";
break;
case TriggerSource::PROXIMITY:
source_arg = "--wifi_transmit_power_source=proximity";
break;
default:
break;
}
const std::string args = base::StringPrintf(
"%s %s %s", power_arg.c_str(), domain_arg.c_str(), source_arg.c_str());
LOG(INFO) << ((power == RadioTransmitPower::LOW) ? "Enabling" : "Disabling")
<< " tablet mode wifi transmit power";
RunSetuidHelper("set_wifi_transmit_power", args, false);
}
void Daemon::SetCellularTransmitPower(RadioTransmitPower power,
int64_t dpr_gpio_number) {
const bool is_power_low = (power == RadioTransmitPower::LOW);
const std::string args = base::StringPrintf(
"--cellular_transmit_power_low=%s "
"--cellular_transmit_power_gpio=%" PRId64,
is_power_low ? "true" : "false", dpr_gpio_number);
LOG(INFO) << "Setting cellular transmit power "
<< (is_power_low ? "low" : "high");
RunSetuidHelper("set_cellular_transmit_power", args, false);
}
bool Daemon::RunEcCommand(ec::EcCommandInterface& cmd) {
base::ScopedFD ec_fd =
base::ScopedFD(open(cros_ec_path_.value().c_str(), O_RDWR));
if (!ec_fd.is_valid()) {
PLOG(ERROR) << "Failed to open " << cros_ec_path_;
return false;
}
if (!cmd.Run(ec_fd.get())) {
return false;
}
return true;
}
bool Daemon::SetBatterySustain(int lower, int upper) {
auto cmd = ec_command_factory_->ChargeControlSetCommand(CHARGE_CONTROL_NORMAL,
lower, upper);
bool success = RunEcCommand(*cmd);
if (!success) {
// This is expected if the EC doesn't support battery sustainer.
LOG(INFO) << "Setting battery sustain with lower = " << lower
<< "% and upper = " << upper << "% failed";
}
return success;
}
bool Daemon::SetBatterySlowCharging(uint32_t limit_mA) {
auto cmd = ec_command_factory_->ChargeCurrentLimitSetCommand(limit_mA);
bool success = RunEcCommand(*cmd);
if (!success) {
// This is expected if the EC doesn't support setting a charge current
// limit.
LOG(INFO) << "Setting charge limit = " << limit_mA << "mA failed";
}
return success;
}
bool Daemon::SetBatteryDischarge() {
// Second and third args don't matter for CHARGE_CONTROL_DISCHARGE.
auto cmd = ec_command_factory_->ChargeControlSetCommand(
CHARGE_CONTROL_DISCHARGE, 0, 0);
bool success = RunEcCommand(*cmd);
if (!success) {
LOG(ERROR) << "Failed to force discharge the battery";
}
return success;
}
bool Daemon::AddSuspendInternalDelay(policy::SuspendInternalDelay* delay) {
return suspender_->AddSuspendInternalDelay(delay);
}
void Daemon::RemoveSuspendInternalDelay(policy::SuspendInternalDelay* delay) {
suspender_->RemoveSuspendInternalDelay(delay);
}
void Daemon::GetAdaptiveChargingPrediction(
const assist_ranker::RankerExample& proto, bool async) {
brillo::ErrorPtr error;
std::vector<uint8_t> serialized(proto.ByteSizeLong());
if (!proto.SerializeToArray(serialized.data(), serialized.size())) {
error = brillo::Error::Create(FROM_HERE, kErrorDomain, kInternalError,
"Failed to serialize RankerExample");
adaptive_charging_controller_->OnPredictionFail(error.get());
return;
}
if (async) {
adaptive_charging_ml_proxy_->RequestAdaptiveChargingDecisionAsync(
serialized,
base::BindRepeating(
&policy::AdaptiveChargingControllerInterface::OnPredictionResponse,
base::Unretained(adaptive_charging_controller_.get())),
base::BindRepeating(
&policy::AdaptiveChargingControllerInterface::OnPredictionFail,
base::Unretained(adaptive_charging_controller_.get())));
return;
}
bool inference_done;
std::vector<double> result;
if (!adaptive_charging_ml_proxy_->RequestAdaptiveChargingDecision(
serialized, &inference_done, &result, &error,
kAdaptiveChargingSyncDBusTimeoutMs)) {
adaptive_charging_controller_->OnPredictionFail(error.get());
return;
}
if (!inference_done) {
error = brillo::Error::Create(
FROM_HERE, brillo::errors::dbus::kDomain, DBUS_ERROR_FAILED,
"Adaptive Charging ML Proxy failed to finish inference");
adaptive_charging_controller_->OnPredictionFail(error.get());
return;
}
adaptive_charging_controller_->OnPredictionResponse(inference_done, result);
}
void Daemon::GenerateAdaptiveChargingUnplugMetrics(
const metrics::AdaptiveChargingState state,
const base::TimeTicks& target_time,
const base::TimeTicks& hold_start_time,
const base::TimeTicks& hold_end_time,
const base::TimeTicks& charge_finished_time,
const base::TimeDelta& time_spent_slow_charging,
double display_battery_percentage) {
metrics_collector_->GenerateAdaptiveChargingUnplugMetrics(
state, target_time, hold_start_time, hold_end_time, charge_finished_time,
time_spent_slow_charging, display_battery_percentage);
}
void Daemon::OnAudioStateChange(bool active) {
if (active) {
audio_activity_logger_->OnActivityStarted();
} else {
audio_activity_logger_->OnActivityStopped();
}
state_controller_->HandleAudioStateChange(active);
}
void Daemon::OnDBusNameOwnerChanged(const std::string& name,
const std::string& old_owner,
const std::string& new_owner) {
if (name == login_manager::kSessionManagerServiceName && !new_owner.empty()) {
LOG(INFO) << "D-Bus " << name << " ownership changed to " << new_owner;
HandleSessionManagerAvailableOrRestarted(true);
} else if (name == chromeos::kDisplayServiceName && !new_owner.empty()) {
LOG(INFO) << "D-Bus " << name << " ownership changed to " << new_owner;
HandleDisplayServiceAvailableOrRestarted(true);
} else if (name == privacy_screen::kPrivacyScreenServiceName &&
!new_owner.empty()) {
LOG(INFO) << "D-Bus " << name << " ownership changed to " << new_owner;
HandlePrivacyScreenServiceAvailableOrRestarted(true);
}
suspender_->HandleDBusNameOwnerChanged(name, old_owner, new_owner);
}
void Daemon::OnPowerStatusUpdate() {
TRACE_EVENT("power", "OnPowerStatusUpdate");
const system::PowerStatus status = power_supply_->GetPowerStatus();
if (status.battery_is_present) {
LOG(INFO) << system::GetPowerStatusBatteryDebugString(status);
}
metrics_collector_->HandlePowerStatusUpdate(status);
const PowerSource power_source =
status.line_power_on ? PowerSource::AC : PowerSource::BATTERY;
for (auto controller : all_backlight_controllers_) {
controller->HandlePowerSourceChange(power_source);
}
state_controller_->HandlePowerSourceChange(power_source);
thermal_event_handler_->HandlePowerSourceChange(power_source);
if (status.battery_below_shutdown_threshold) {
LOG(INFO) << "Shutting down due to low battery ("
<< base::StringPrintf("%0.2f", status.battery_percentage) << "%, "
<< util::TimeDeltaToString(status.battery_time_to_empty)
<< " until empty, "
<< base::StringPrintf("%0.3f",
status.observed_battery_charge_rate)
<< "A observed charge rate)";
ShutDown(ShutdownMode::POWER_OFF, ShutdownReason::LOW_BATTERY);
}
}
void Daemon::OnBatterySaverStateChanged(const BatterySaverModeState& state) {
TRACE_EVENT("power", "OnBatterySaverStateChanged");
// TODO(sxm): Collect metrics somewhere around here.
for (auto controller : all_backlight_controllers_) {
controller->HandleBatterySaverModeChange(state);
}
power_supply_->OnBatterySaverStateChanged();
}
void Daemon::InitDBus() {
dbus_wrapper_ = delegate_->CreateDBusWrapper();
dbus_wrapper_->AddObserver(this);
dbus::ObjectProxy* display_service_proxy = dbus_wrapper_->GetObjectProxy(
chromeos::kDisplayServiceName, chromeos::kDisplayServicePath);
dbus_wrapper_->RegisterForServiceAvailability(
display_service_proxy,
base::BindRepeating(&Daemon::HandleDisplayServiceAvailableOrRestarted,
weak_ptr_factory_.GetWeakPtr()));
session_manager_dbus_proxy_ =
dbus_wrapper_->GetObjectProxy(login_manager::kSessionManagerServiceName,
login_manager::kSessionManagerServicePath);
resource_manager_dbus_proxy_ = dbus_wrapper_->GetObjectProxy(
resource_manager::kResourceManagerServiceName,
resource_manager::kResourceManagerServicePath);
dbus_wrapper_->RegisterForServiceAvailability(
session_manager_dbus_proxy_,
base::BindRepeating(&Daemon::HandleSessionManagerAvailableOrRestarted,
weak_ptr_factory_.GetWeakPtr()));
dbus_wrapper_->RegisterForSignal(
session_manager_dbus_proxy_, login_manager::kSessionManagerInterface,
login_manager::kSessionStateChangedSignal,
base::BindRepeating(&Daemon::HandleSessionStateChangedSignal,
weak_ptr_factory_.GetWeakPtr()));
privacy_screen_service_dbus_proxy_ =
dbus_wrapper_->GetObjectProxy(privacy_screen::kPrivacyScreenServiceName,
privacy_screen::kPrivacyScreenServicePath);
dbus_wrapper_->RegisterForServiceAvailability(
privacy_screen_service_dbus_proxy_,
base::BindRepeating(
&Daemon::HandlePrivacyScreenServiceAvailableOrRestarted,
weak_ptr_factory_.GetWeakPtr()));
dbus_wrapper_->RegisterForSignal(
privacy_screen_service_dbus_proxy_,
privacy_screen::kPrivacyScreenServiceInterface,
privacy_screen::kPrivacyScreenServicePrivacyScreenSettingChangedSignal,
base::BindRepeating(&Daemon::HandlePrivacyScreenSettingChangedSignal,
weak_ptr_factory_.GetWeakPtr()));
// Export Daemon's D-Bus method calls.
typedef std::unique_ptr<dbus::Response> (Daemon::*DaemonMethod)(
dbus::MethodCall*);
const std::map<const char*, DaemonMethod> kDaemonMethods = {
{kRequestShutdownMethod, &Daemon::HandleRequestShutdownMethod},
{kRequestRestartMethod, &Daemon::HandleRequestRestartMethod},
{kRequestSuspendMethod, &Daemon::HandleRequestSuspendMethod},
{kGetLastWakealarmMethod, &Daemon::HandleGetLastWakealarmMethod},
{kHandleVideoActivityMethod, &Daemon::HandleVideoActivityMethod},
{kHandleUserActivityMethod, &Daemon::HandleUserActivityMethod},
{kHandleWakeNotificationMethod, &Daemon::HandleWakeNotificationMethod},
{kSetIsProjectingMethod, &Daemon::HandleSetIsProjectingMethod},
{kSetPolicyMethod, &Daemon::HandleSetPolicyMethod},
{kSetBacklightsForcedOffMethod,
&Daemon::HandleSetBacklightsForcedOffMethod},
{kGetBacklightsForcedOffMethod,
&Daemon::HandleGetBacklightsForcedOffMethod},
{kHasKeyboardBacklightMethod, &Daemon::HandleHasKeyboardBacklightMethod},
{kChangeWifiRegDomainMethod, &Daemon::HandleChangeWifiRegDomainMethod},
{kGetTabletModeMethod, &Daemon::HandleGetTabletModeMethod},
{kHasAmbientLightSensorMethod,
&Daemon::HandleHasAmbientLightSensorMethod},
};
for (const auto& it : kDaemonMethods) {
dbus_wrapper_->ExportMethod(
it.first, base::BindRepeating(
&HandleSynchronousDBusMethodCall,
base::BindRepeating(it.second, base::Unretained(this))));
}
const scoped_refptr<dbus::Bus>& bus = dbus_wrapper_->GetBus();
// We don't need to wait for this DBus proxy to init, since calls to it will
// block if it's not currently available.
// Also, create this before returning due to |bus| == NULL, since we mock out
// the adaptive_charging_ml_proxy_ for testing.
adaptive_charging_ml_proxy_ = delegate_->CreateAdaptiveChargingProxy(bus);
// There's no underlying dbus::Bus object when we're being tested.
if (!bus) {
return;
}
int64_t tpm_threshold = 0;
prefs_->GetInt64(kTpmCounterSuspendThresholdPref, &tpm_threshold);
if (tpm_threshold > 0) {
tpm_manager_proxy_ = std::make_unique<org::chromium::TpmManagerProxy>(bus);
tpm_manager_proxy_->GetObjectProxy()->WaitForServiceToBeAvailable(
base::BindRepeating(&Daemon::HandleTpmManagerdAvailable,
weak_ptr_factory_.GetWeakPtr()));
int64_t tpm_status_sec = 0;
prefs_->GetInt64(kTpmStatusIntervalSecPref, &tpm_status_sec);
tpm_status_interval_ = base::Seconds(tpm_status_sec);
}
}
void Daemon::HandleDisplayServiceAvailableOrRestarted(bool available) {
if (!available) {
LOG(ERROR) << "Failed waiting for DisplayService to become available";
return;
}
for (auto controller : all_backlight_controllers_) {
controller->HandleDisplayServiceStart();
}
// When running in the factory, we avoid initializing any backlight
// controllers, but we need to still tell Chrome to initially turn displays on
// so it will restore the correct display power state when returning from VT2:
// http://b/78436034
if (factory_mode_) {
DCHECK(all_backlight_controllers_.empty());
display_power_setter_->SetDisplayPower(chromeos::DISPLAY_POWER_ALL_ON,
base::TimeDelta());
}
}
void Daemon::HandleSessionManagerAvailableOrRestarted(bool available) {
if (!available) {
LOG(ERROR) << "Failed waiting for session manager to become available";
return;
}
dbus::MethodCall method_call(
login_manager::kSessionManagerInterface,
login_manager::kSessionManagerRetrieveSessionState);
std::unique_ptr<dbus::Response> response = dbus_wrapper_->CallMethodSync(
session_manager_dbus_proxy_, &method_call, kSessionManagerDBusTimeout);
if (!response) {
return;
}
std::string state;
dbus::MessageReader reader(response.get());
if (!reader.PopString(&state)) {
LOG(ERROR) << "Unable to read "
<< login_manager::kSessionManagerRetrieveSessionState << " args";
return;
}
OnSessionStateChange(state);
}
void Daemon::HandlePrivacyScreenServiceAvailableOrRestarted(bool available) {
if (!available) {
LOG(ERROR)
<< "Failed waiting for privacy screen service to become available";
return;
}
dbus::MethodCall method_call(
privacy_screen::kPrivacyScreenServiceInterface,
privacy_screen::kPrivacyScreenServiceGetPrivacyScreenSettingMethod);
dbus_wrapper_->CallMethodAsync(
privacy_screen_service_dbus_proxy_, &method_call,
kPrivacyScreenServiceDBusTimeoutMs,
base::BindRepeating(&Daemon::HandleGetPrivacyScreenSettingResponse,
weak_ptr_factory_.GetWeakPtr()));
}
void Daemon::HandleTpmManagerdAvailable(bool available) {
if (!available) {
LOG(ERROR) << "Failed waiting for tpm_manager to become available";
return;
}
if (!tpm_manager_proxy_) {
return;
}
RequestTpmStatus();
if (tpm_status_interval_ > base::Seconds(0)) {
tpm_status_timer_.Start(FROM_HERE, tpm_status_interval_, this,
&Daemon::RequestTpmStatus);
}
}
void Daemon::HandleSessionStateChangedSignal(dbus::Signal* signal) {
dbus::MessageReader reader(signal);
std::string state;
if (reader.PopString(&state)) {
OnSessionStateChange(state);
} else {
LOG(ERROR) << "Unable to read " << login_manager::kSessionStateChangedSignal
<< " args";
}
}
void Daemon::HandlePrivacyScreenSettingChangedSignal(dbus::Signal* signal) {
dbus::MessageReader reader(signal);
privacy_screen::PrivacyScreenSetting setting;
if (reader.PopArrayOfBytesAsProto(&setting)) {
OnPrivacyScreenStateChange(setting.state());
} else {
LOG(ERROR) << "Unable to read "
<< privacy_screen::
kPrivacyScreenServicePrivacyScreenSettingChangedSignal
<< " args";
}
}
void Daemon::HandleGetPrivacyScreenSettingResponse(dbus::Response* response) {
if (!response) {
LOG(ERROR)
<< "D-Bus method call to "
<< privacy_screen::kPrivacyScreenServiceGetPrivacyScreenSettingMethod
<< " failed";
return;
}
dbus::MessageReader reader(response);
privacy_screen::PrivacyScreenSetting setting;
if (reader.PopArrayOfBytesAsProto(&setting)) {
OnPrivacyScreenStateChange(setting.state());
} else {
LOG(ERROR)
<< "Unable to read "
<< privacy_screen::kPrivacyScreenServiceGetPrivacyScreenSettingMethod
<< " args";
}
}
void Daemon::HandleGetDictionaryAttackInfoFailed(brillo::Error* err) {
LOG(ERROR) << "GetDictionaryAttackInfo call failed";
return;
}
void Daemon::HandleGetDictionaryAttackInfoSuccess(
const tpm_manager::GetDictionaryAttackInfoReply& reply) {
if (reply.status() != tpm_manager::STATUS_SUCCESS) {
LOG(ERROR) << "GetDictionaryAttackInfo response contains error status code "
<< reply.status();
return;
}
const int da_count = reply.dictionary_attack_counter();
LOG(INFO) << "Received GetDictionaryAttackInfo response with dictionary "
"attack count "
<< da_count;
state_controller_->HandleTpmStatus(da_count);
}
std::unique_ptr<dbus::Response> Daemon::HandleRequestShutdownMethod(
dbus::MethodCall* method_call) {
// Both arguments are optional.
dbus::MessageReader reader(method_call);
int32_t arg = 0;
ShutdownReason reason = ShutdownReason::OTHER_REQUEST_TO_POWERD;
if (reader.PopInt32(&arg)) {
switch (static_cast<RequestShutdownReason>(arg)) {
case REQUEST_SHUTDOWN_FOR_USER:
reason = ShutdownReason::USER_REQUEST;
break;
case REQUEST_SHUTDOWN_OTHER:
reason = ShutdownReason::OTHER_REQUEST_TO_POWERD;
break;
default:
LOG(WARNING) << "Got unknown shutdown reason " << arg;
}
}
std::string description;
reader.PopString(&description);
LOG(INFO) << "Got " << kRequestShutdownMethod << " message from "
<< method_call->GetSender() << " with reason "
<< ShutdownReasonToString(reason) << " (" << description << ")";
ShutDown(ShutdownMode::POWER_OFF, reason);
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleRequestRestartMethod(
dbus::MethodCall* method_call) {
// Both arguments are optional.
dbus::MessageReader reader(method_call);
int32_t arg = 0;
ShutdownReason reason = ShutdownReason::OTHER_REQUEST_TO_POWERD;
if (reader.PopInt32(&arg)) {
switch (static_cast<RequestRestartReason>(arg)) {
case REQUEST_RESTART_FOR_USER:
reason = ShutdownReason::USER_REQUEST;
break;
case REQUEST_RESTART_FOR_UPDATE:
reason = ShutdownReason::SYSTEM_UPDATE;
break;
case REQUEST_RESTART_HEARTD:
reason = ShutdownReason::HEARTD_REQUEST;
break;
case REQUEST_RESTART_OTHER:
case REQUEST_RESTART_SCHEDULED_REBOOT_POLICY:
case REQUEST_RESTART_REMOTE_ACTION_REBOOT:
case REQUEST_RESTART_API:
reason = ShutdownReason::OTHER_REQUEST_TO_POWERD;
break;
default:
LOG(WARNING) << "Got unknown restart reason " << arg;
}
}
std::string description;
reader.PopString(&description);
LOG(INFO) << "Got " << kRequestRestartMethod << " message from "
<< method_call->GetSender() << " with reason "
<< ShutdownReasonToString(reason) << " (" << description << ")";
ShutDown(ShutdownMode::REBOOT, reason);
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleRequestSuspendMethod(
dbus::MethodCall* method_call) {
// Read an optional uint64_t argument specifying the wakeup count that is
// expected.
dbus::MessageReader reader(method_call);
uint64_t external_wakeup_count = -1ULL;
bool got_external_wakeup_count = reader.PopUint64(&external_wakeup_count);
// Use -1 as a "no external wakeup count" value. Optional parameters like
// this are discouraged in new designs because to add additional parameters,
// all optional parameters before it must be supplied. Null values like
// -1 are then needed as a way to say "I'm giving you this parameter, but
// pretend like I'm not."
if (external_wakeup_count == -1ULL) {
got_external_wakeup_count = false;
}
LOG(INFO) << "Got " << kRequestSuspendMethod << " message"
<< (got_external_wakeup_count
? base::StringPrintf(" with external wakeup count %" PRIu64,
external_wakeup_count)
.c_str()
: "")
<< " from " << method_call->GetSender();
// Read an optional int32_t argument specifying the wakeup timeout for a
// suspend request.
int32_t wakeup_timeout = 0;
reader.PopInt32(&wakeup_timeout);
base::TimeDelta duration = base::Seconds(wakeup_timeout);
// Read an optional uint32_t argument specifying the suspend flavor.
uint32_t suspend_flavor =
static_cast<uint32_t>(SuspendFlavor::SUSPEND_DEFAULT);
reader.PopUint32(&suspend_flavor);
Suspend(SuspendImminent_Reason_OTHER,
got_external_wakeup_count
? std::make_optional<uint64_t>(external_wakeup_count)
: std::nullopt,
duration, static_cast<SuspendFlavor>(suspend_flavor));
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleGetLastWakealarmMethod(
dbus::MethodCall* method_call) {
std::unique_ptr<dbus::Response> response(
dbus::Response::FromMethodCall(method_call));
LOG(INFO) << "have wakealarm time: " << wakealarm_time_ << std::endl;
dbus::MessageWriter(response.get()).AppendUint64(wakealarm_time_);
return response;
}
void Daemon::SetFullscreenVideoWithTimeout(bool active, int timeout_seconds) {
dbus::MethodCall method_call(
resource_manager::kResourceManagerInterface,
resource_manager::kSetFullscreenVideoWithTimeout);
dbus::MessageWriter writer(&method_call);
writer.AppendByte(static_cast<char>(active));
writer.AppendUint32(timeout_seconds);
dbus_wrapper_->CallMethodSync(resource_manager_dbus_proxy_, &method_call,
kResourceManagerDBusTimeout);
}
std::unique_ptr<dbus::Response> Daemon::HandleVideoActivityMethod(
dbus::MethodCall* method_call) {
bool fullscreen = false;
dbus::MessageReader reader(method_call);
if (!reader.PopBool(&fullscreen)) {
LOG(ERROR) << "Unable to read " << kHandleVideoActivityMethod << " args";
}
video_activity_logger_->OnActivityReported();
for (auto controller : all_backlight_controllers_) {
controller->HandleVideoActivity(fullscreen);
}
state_controller_->HandleVideoActivity();
if (fullscreen) {
SetFullscreenVideoWithTimeout(true /* active */,
10 /* timeout in seconds */);
}
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleUserActivityMethod(
dbus::MethodCall* method_call) {
user_activity_logger_->OnActivityReported();
int type_int = USER_ACTIVITY_OTHER;
dbus::MessageReader reader(method_call);
if (!reader.PopInt32(&type_int)) {
LOG(ERROR) << "Unable to read " << kHandleUserActivityMethod << " args";
}
UserActivityType type = static_cast<UserActivityType>(type_int);
suspender_->HandleUserActivity();
state_controller_->HandleUserActivity();
for (auto controller : all_backlight_controllers_) {
controller->HandleUserActivity(type);
}
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleWakeNotificationMethod(
dbus::MethodCall* method_call) {
suspender_->HandleWakeNotification();
state_controller_->HandleWakeNotification();
for (auto controller : all_backlight_controllers_) {
controller->HandleWakeNotification();
}
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleSetIsProjectingMethod(
dbus::MethodCall* method_call) {
bool is_projecting = false;
dbus::MessageReader reader(method_call);
if (!reader.PopBool(&is_projecting)) {
LOG(ERROR) << "Unable to read " << kSetIsProjectingMethod << " args";
return CreateInvalidArgsError(method_call, "Expected boolean state");
}
DisplayMode mode =
is_projecting ? DisplayMode::PRESENTATION : DisplayMode::NORMAL;
LOG(INFO) << "Chrome is using " << DisplayModeToString(mode)
<< " display mode";
state_controller_->HandleDisplayModeChange(mode);
suspender_->HandleDisplayModeChange(mode);
input_device_controller_->SetDisplayMode(mode);
for (auto controller : all_backlight_controllers_) {
controller->HandleDisplayModeChange(mode);
}
metrics_collector_->GenerateDisplayAfterResumeDurationMsMetric();
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleSetPolicyMethod(
dbus::MethodCall* method_call) {
PowerManagementPolicy policy;
dbus::MessageReader reader(method_call);
if (!reader.PopArrayOfBytesAsProto(&policy)) {
LOG(ERROR) << "Unable to parse " << kSetPolicyMethod << " request";
return CreateInvalidArgsError(method_call, "Expected protobuf");
}
LOG(INFO) << "Received updated external policy: "
<< policy::StateController::GetPolicyDebugString(policy);
state_controller_->HandlePolicyChange(policy);
if (charge_controller_) {
charge_controller_->HandlePolicyChange(policy);
}
if (adaptive_charging_controller_) {
adaptive_charging_controller_->HandlePolicyChange(policy);
}
for (auto controller : all_backlight_controllers_) {
controller->HandlePolicyChange(policy);
}
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleSetBacklightsForcedOffMethod(
dbus::MethodCall* method_call) {
bool force_off = false;
if (!dbus::MessageReader(method_call).PopBool(&force_off)) {
LOG(ERROR) << "Unable to read " << kSetBacklightsForcedOffMethod << " args";
return CreateInvalidArgsError(method_call, "Expected bool");
}
LOG(INFO) << "Received request to " << (force_off ? "start" : "stop")
<< " forcing backlights off";
for (auto controller : all_backlight_controllers_) {
controller->SetForcedOff(force_off);
}
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleGetBacklightsForcedOffMethod(
dbus::MethodCall* method_call) {
std::unique_ptr<dbus::Response> response(
dbus::Response::FromMethodCall(method_call));
// We can get the current state from any backlight controller.
bool forced_off = all_backlight_controllers_.empty()
? false
: all_backlight_controllers_.front()->GetForcedOff();
dbus::MessageWriter(response.get()).AppendBool(forced_off);
return response;
}
std::unique_ptr<dbus::Response> Daemon::HandleHasKeyboardBacklightMethod(
dbus::MethodCall* method_call) {
std::unique_ptr<dbus::Response> response(
dbus::Response::FromMethodCall(method_call));
bool has_keyboard_backlight = BoolPrefIsTrue(kHasKeyboardBacklightPref);
dbus::MessageWriter(response.get()).AppendBool(has_keyboard_backlight);
return response;
}
std::unique_ptr<dbus::Response> Daemon::HandleChangeWifiRegDomainMethod(
dbus::MethodCall* method_call) {
int32_t arg = 0;
dbus::MessageReader reader(method_call);
WifiRegDomain domain = WifiRegDomain::NONE;
if (!reader.PopInt32(&arg)) {
LOG(ERROR) << "Unable to read " << kChangeWifiRegDomainMethod << " args";
return CreateInvalidArgsError(method_call, "Expected Int32");
}
switch (static_cast<WifiRegDomainDbus>(arg)) {
case WIFI_REG_DOMAIN_FCC:
domain = WifiRegDomain::FCC;
break;
case WIFI_REG_DOMAIN_EU:
domain = WifiRegDomain::EU;
break;
case WIFI_REG_DOMAIN_REST_OF_WORLD:
domain = WifiRegDomain::REST_OF_WORLD;
break;
case WIFI_REG_DOMAIN_NONE:
break;
default:
LOG(WARNING) << "Got unknown WiFi regulatory domain " << arg;
}
LOG(INFO) << "Received request to change reg domain to \""
<< WifiRegDomainToString(domain) << "\"";
wifi_controller_->HandleRegDomainChange(domain);
return nullptr;
}
std::unique_ptr<dbus::Response> Daemon::HandleGetTabletModeMethod(
dbus::MethodCall* method_call) {
std::unique_ptr<dbus::Response> response(
dbus::Response::FromMethodCall(method_call));
const TabletMode tablet_mode = input_watcher_->GetTabletMode();
dbus::MessageWriter(response.get()).AppendBool(tablet_mode == TabletMode::ON);
return response;
}
std::unique_ptr<dbus::Response> Daemon::HandleHasAmbientLightSensorMethod(
dbus::MethodCall* method_call) {
std::unique_ptr<dbus::Response> response(
dbus::Response::FromMethodCall(method_call));
int64_t num_sensors;
prefs_->GetInt64(kHasAmbientLightSensorPref, &num_sensors);
dbus::MessageWriter(response.get()).AppendBool(num_sensors > 0);
return response;
}
void Daemon::OnSessionStateChange(const std::string& state_str) {
SessionState state = (state_str == kSessionStarted) ? SessionState::STARTED
: SessionState::STOPPED;
if (state == session_state_) {
return;
}
LOG(INFO) << "Session state changed to " << SessionStateToString(state);
session_state_ = state;
metrics_collector_->HandleSessionStateChange(state);
state_controller_->HandleSessionStateChange(state);
for (auto controller : all_backlight_controllers_) {
controller->HandleSessionStateChange(state);
}
}
void Daemon::OnPrivacyScreenStateChange(
const privacy_screen::PrivacyScreenSetting_PrivacyScreenState& state) {
if (state == privacy_screen_state_) {
return;
}
VLOG(1) << "Privacy screen state changed to "
<< PrivacyScreenStateToString(state);
privacy_screen_state_ = state;
metrics_collector_->HandlePrivacyScreenStateChange(privacy_screen_state_);
}
void Daemon::RequestTpmStatus() {
TRACE_EVENT("power", "Daemon::RequestTpmStatus");
DCHECK(tpm_manager_proxy_);
tpm_manager::GetDictionaryAttackInfoRequest request;
tpm_manager_proxy_->GetDictionaryAttackInfoAsync(
request,
base::BindRepeating(&Daemon::HandleGetDictionaryAttackInfoSuccess,
weak_ptr_factory_.GetWeakPtr()),
base::BindRepeating(&Daemon::HandleGetDictionaryAttackInfoFailed,
weak_ptr_factory_.GetWeakPtr()),
kTpmManagerdDBusTimeout.InMilliseconds());
}
void Daemon::ShutDown(ShutdownMode mode, ShutdownReason reason) {
if (shutting_down_) {
LOG(INFO) << "Shutdown already initiated; ignoring additional request";
return;
}
if (!base::PathExists(shutdown_announced_path_)) {
if (!brillo::TouchFile(shutdown_announced_path_)) {
PLOG(ERROR) << "Couldn't create " << shutdown_announced_path_.value();
}
}
std::string details;
if (SuspendAndShutdownAreBlocked(&details)) {
LOG(INFO) << "Postponing shutdown for lockfile(s): " << details;
if (!retry_shutdown_for_lockfile_timer_.IsRunning()) {
retry_shutdown_for_lockfile_timer_.Start(
FROM_HERE, kShutdownLockfileRetryInterval,
base::BindRepeating(&Daemon::ShutDown, weak_ptr_factory_.GetWeakPtr(),
mode, reason));
}
return;
}
shutting_down_ = true;
retry_shutdown_for_lockfile_timer_.Stop();
suspender_->HandleShutdown();
metrics_collector_->HandleShutdown(reason, dark_resume_->InDarkResume());
if (adaptive_charging_controller_) {
adaptive_charging_controller_->HandleShutdown();
}
for (auto controller : all_backlight_controllers_) {
// If we're going to display a low-battery alert while shutting down, don't
// turn the screen off immediately.
if (!(reason == ShutdownReason::LOW_BATTERY &&
controller == display_backlight_controller_.get())) {
controller->SetShuttingDown(true);
}
}
const std::string reason_str = ShutdownReasonToString(reason);
switch (mode) {
case ShutdownMode::POWER_OFF:
LOG(INFO) << "Shutting down, reason: " << reason_str;
RunSetuidHelper("shut_down", "--shutdown_reason=" + reason_str, false);
break;
case ShutdownMode::REBOOT:
if (state_controller_->in_docked_mode()) {
LOG(INFO) << "In docked mode, so telling EC to force lid open to avoid "
<< "shutting down after reboot";
RunSetuidHelper("set_force_lid_open", "--force_lid_open", true);
}
LOG(INFO) << "Restarting, reason: " << reason_str;
RunSetuidHelper("reboot", "--shutdown_reason=" + reason_str, false);
break;
}
}
void Daemon::Suspend(SuspendImminent::Reason reason,
std::optional<uint64_t> external_wakeup_count,
base::TimeDelta duration,
SuspendFlavor flavor) {
if (shutting_down_) {
LOG(INFO) << "Ignoring request for suspend with outstanding shutdown";
return;
}
suspender_->RequestSuspend(reason, external_wakeup_count, duration, flavor);
}
void Daemon::SetBacklightsDimmedForInactivity(bool dimmed) {
for (auto controller : all_backlight_controllers_) {
controller->SetDimmedForInactivity(dimmed);
}
metrics_collector_->HandleScreenDimmedChange(
dimmed, state_controller_->last_user_activity_time());
}
void Daemon::SetBacklightsOffForInactivity(bool off) {
for (auto controller : all_backlight_controllers_) {
controller->SetOffForInactivity(off);
}
metrics_collector_->HandleScreenOffChange(
off, state_controller_->last_user_activity_time());
}
void Daemon::SetBacklightsSuspended(bool suspended) {
for (auto controller : all_backlight_controllers_) {
controller->SetSuspended(suspended);
}
}
} // namespace power_manager