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tdepowersave/src/hardware.cpp

1721 lines
48 KiB

/**************************************************************************
* Copyright (C) 2006-2007 by Danny Kukawka *
* <dkukawka@suse.de>, <danny.kukawka@web.de> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of version 2 of the GNU General Public License *
* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
/*!
* \file hardware.cpp
* \brief In this file can be found the hardware information related code.
* \author Danny Kukawka, <dkukawka@suse.de>, <danny.kukawka@web.de>
* \date 2006-2007
*/
// include global header
#include <fcntl.h>
// include QT header
#include <tqtimer.h>
#include <tqdir.h>
// include own header
#include "hardware.h"
#include "kpowersave_debug.h"
#include "privileges.h"
/*! The default constructor of the class HardwareInfo */
HardwareInfo::HardwareInfo() {
kdDebugFuncIn(trace);
// init members
acadapter = true;
lidclose = false;
dbus_terminated = true;
hal_terminated = true;
laptop = false;
brightness = false;
brightness_in_hardware = false;
schedPowerSavings = false;
sessionIsActive = true; // assume as first we are active
// update everything the first time
update_info_ac_changed = true;
update_info_cpufreq_policy_changed = true;
update_info_primBattery_changed = true;
currentCPUFreqPolicy = UNKNOWN_CPUFREQ;
primaryBatteriesWarnLevel = 12;
primaryBatteriesLowLevel = 7;
primaryBatteriesCriticalLevel = 2;
allUDIs = TQStringList();
consoleKitSession = TQString();
BatteryList.setAutoDelete( true ); // the list owns the objects
primaryBatteries = new BatteryCollection(BAT_PRIMARY);
setPrimaryBatteriesWarningLevel(); // force default settings
// connect to D-Bus and HAL
dbus_HAL = new dbusHAL();
if (dbus_HAL->isConnectedToDBUS()) {
dbus_terminated = false;
if (dbus_HAL->isConnectedToHAL()) {
hal_terminated = false;
} else {
kdError() << "Could not connect to HAL" << endl;
}
} else {
kdError() << "Could not connect to D-Bus & HAL" << endl;
}
checkConsoleKitSession();
checkPowermanagement();
checkIsLaptop();
checkBrightness();
checkCPUFreq();
// getSchedPowerSavings();
checkSuspend();
intialiseHWInfo();
updatePrimaryBatteries();
// connect to signals
connect(dbus_HAL, TQT_SIGNAL(msgReceived_withStringString( msg_type, TQString, TQString )),
this, TQT_SLOT(processMessage( msg_type, TQString, TQString )));
connect(dbus_HAL, TQT_SIGNAL(backFromSuspend(int)), this, TQT_SLOT(handleResumeSignal(int)));
kdDebugFuncOut(trace);
}
/*! The default desctuctor of the class HardwareInfo */
HardwareInfo::~HardwareInfo() {
kdDebugFuncIn(trace);
delete dbus_HAL;
dbus_HAL = NULL;
kdDebugFuncOut(trace);
}
/*!
* This funtion is used to handle the reconnect to the D-Bus daemon
*/
void HardwareInfo::reconnectDBUS() {
kdDebugFuncIn(trace);
if (!dbus_HAL->isConnectedToDBUS()) {
bool _reconnect = dbus_HAL->reconnect();
if (!_reconnect && !dbus_HAL->isConnectedToDBUS()) {
//reconnect failed
emit dbusRunning(DBUS_NOT_RUNNING);
TQTimer::singleShot(4000, this, TQT_SLOT(reconnectDBUS()));
} else if (!_reconnect && dbus_HAL->isConnectedToDBUS()) {
// reset everything, we are reconnected
dbus_terminated = false;
hal_terminated = true;
emit dbusRunning(DBUS_RUNNING);
} else if (_reconnect) {
// reset everything, we are reconnected
dbus_terminated = false;
hal_terminated = false;
reinitHardwareInfos();
emit dbusRunning(hal_terminated);
emit halRunning(DBUS_RUNNING);
}
}
kdDebugFuncOut(trace);
}
/*!
* This funtion is used to reinit all hardware information.
* \return Boolean with result of the call
* \retval true if reinit HW infos correct
* \retval false if not
*/
bool HardwareInfo::reinitHardwareInfos () {
kdDebugFuncIn(trace);
if (dbus_HAL->isConnectedToDBUS() && dbus_HAL->isConnectedToHAL()) {
/* first cleanup */
acadapter = true;
lidclose = false;
laptop = false;
brightness = false;
has_APM = false;
has_ACPI = false;
update_info_ac_changed = true;
update_info_cpufreq_policy_changed = true;
update_info_primBattery_changed = true;
allUDIs = TQStringList();
BatteryList.clear();
primaryBatteries = new BatteryCollection(BAT_PRIMARY);
// check the current desktop session again
checkConsoleKitSession();
/* reinit hardware data */
checkPowermanagement();
checkIsLaptop();
checkBrightness();
checkCPUFreq();
checkSuspend();
intialiseHWInfo();
// getSchedPowerSavings();
updatePrimaryBatteries();
kdDebugFuncOut(trace);
return true;
} else {
kdDebugFuncOut(trace);
return false;
}
}
/*!
* This funtion is used to parse a message from D-Bus for the different
* messagetypes and events.
* \param type a \ref msg_type which should be parse/processed
* \param message the message
* \param value an optional message value as e.g. message string
*/
void HardwareInfo::processMessage (msg_type type, TQString message, TQString value) {
kdDebugFuncIn(trace);
switch(type) {
case ACPI_EVENT:
// we don't handle acpi events here atm
break;
case DBUS_EVENT:
kdDebug() << "D-Bus Event: " << value << endl;
if ( message.startsWith("dbus.terminate")){
// TODO: addapt from pdaemon
dbus_terminated = true;
TQTimer::singleShot(4000, this, TQT_SLOT(reconnectDBUS()));
}
else if ( message.startsWith("hal.")) {
if ( message.startsWith("hal.terminate")) {
hal_terminated = true;
emit halRunning(false);
// TODO: update data
emit generalDataChanged();
} else if ( message.startsWith("hal.started")) {
hal_terminated = false;
reinitHardwareInfos();
emit halRunning( true );
// TODO: update data
emit generalDataChanged();
}
// TODO: addapt from pdaemon
}
break;
case HAL_DEVICE:
// --> we can maybe ignore these events except for batteries, not shure atm
int _type;
if (message.startsWith("DeviceAdded")) {
if (checkIfHandleDevice(value, &_type)) {
switch (_type) {
case BATTERY:
case AC_ADAPTER:
case BUTTON_SLEEP:
case BUTTON_POWER:
case LID:
// TODO: handle code if needed actually not
break;
case LAPTOP_PANEL:
checkBrightness();
break;
default:
kdDebug() << "New device added Device udi: "
<< value << "type: " << _type << endl;
break;
}
}
} else if (message.startsWith("DeviceRemoved")) {
if (allUDIs.contains(value)) {
if (checkIfHandleDevice(value, &_type)) {
switch (_type) {
case BATTERY:
case AC_ADAPTER:
case BUTTON_SLEEP:
case BUTTON_POWER:
case LID:
// TODO: handle code if needed
break;
case LAPTOP_PANEL:
checkBrightness();
break;
default:
kdDebug() << "Couldn't handle unknown device" << endl;
break;
}
}
} else {
kdDebug() << "Not monitored device removed: " << value << endl;
}
} else {
kdDebug() << "Unknown HAL_DEVICE message: " << message << endl;
}
break;
case HAL_PROPERTY_CHANGED:
if (!message.isEmpty() && allUDIs.contains( message )) {
if (value.startsWith( "ac_adapter.present" )) {
TQTimer::singleShot(50, this, TQT_SLOT(checkACAdapterState()));
} else if (value.startsWith( "battery." )) {
// this is a battery event
updateBatteryValues(message, value);
} else if (value.startsWith( "button.state.value" )) {
if (message.startsWith( *udis["lidclose"] )) {
TQTimer::singleShot(50, this, TQT_SLOT(checkLidcloseState()));
}
} else if (value.startsWith( "laptop_panel")) {
if (message.startsWith( *udis["laptop_panel"] )) {
TQTimer::singleShot(50, this, TQT_SLOT(checkBrightness()));
}
}
// TODO: add needed code
} else {
kdDebug() << "HAL_PROPERTY_CHANGED for unmonitored device: " << value << endl;
}
break;
case HAL_CONDITION:
// TODO: Check if we really need to monitor this events. We get maybe also
// HAL_PROPERTY_CHANGED event for the key
if (message.startsWith("ButtonPressed")) {
kdDebug() << "ButtonPressed event from HAL: " << value << endl;
if (value.startsWith("lid")) {
TQTimer::singleShot(50, this, TQT_SLOT(checkLidcloseState()));
} else if (value.startsWith("power")) {
TQTimer::singleShot(50, this, TQT_SLOT(emitPowerButtonPressed()));
} else if (value.startsWith("sleep") || value.startsWith("suspend")) {
TQTimer::singleShot(50, this, TQT_SLOT(emitSleepButtonPressed()));
} else if (value.startsWith("hibernate")) {
TQTimer::singleShot(50, this, TQT_SLOT(emitS2diskButtonPressed()));
} else if (value.startsWith("brightness-")) {
if (!brightness_in_hardware && value.endsWith("-up"))
TQTimer::singleShot(50, this, TQT_SLOT(brightnessUpPressed()));
else if (!brightness_in_hardware && value.endsWith("-down"))
TQTimer::singleShot(50, this, TQT_SLOT(brightnessDownPressed()));
}
} else {
kdDebug() << "Unmonitored HAL_CONDITION: " << message << " : " << value << endl;
}
break;
case CONSOLEKIT_SESSION_ACTIVE:
if (!message.isEmpty() && !value.isEmpty()) {
if (message == consoleKitSession) {
if (value == "1") {
sessionIsActive = true;
} else {
sessionIsActive = false;
}
TQTimer::singleShot(50, this, TQT_SLOT(emitSessionActiveState()));
} else {
if (trace)
kdDebug() << "CONSOLEKIT_SESSION_ACTIVE: not our session" << endl;
}
}
break;
case POLICY_POWER_OWNER_CHANGED:
if (message.startsWith("NOW_OWNER")) {
// TODO: add code
} else if (message.startsWith("OTHER_OWNER")){
// TODO: add code
}
break;
default:
kdDebug() << "Recieved unknown package type: " << type << endl;
break;
}
kdDebugFuncOut(trace);
}
/*!
* This TQT_SLOT is used to fetch the resume signal and multiplex. If needed some
* actions after resume, do this here.
* \param result integer with the result of the resume/suspend
*/
void HardwareInfo::handleResumeSignal (int result) {
if (trace) kdDebug() << funcinfo << "IN: " << "(int result: " << result << ")"<< endl;
if (result == -1) {
// check if time since suspend is higher than 6 hours,
// the magic D-Bus timeout for pending calls
if (calledSuspend.elapsed() > 21600000) {
emit resumed(INT_MAX);
}
} else {
emit resumed(result);
}
calledSuspend = TQTime();
kdDebugFuncOut(trace);
}
/*!
* This function checks the session for the running KPowersave instance
* \return Boolean with result of operation
* \retval true if the query/check could get finished
* \retval false on every error
*/
bool HardwareInfo::checkConsoleKitSession () {
kdDebugFuncIn(trace);
bool retval = false;
if (dbus_HAL->isConnectedToDBUS()) {
char *reply;
char *cookie = getenv("XDG_SESSION_COOKIE");
if (cookie == NULL) {
kdDebug() << "Could not get XDG_SESSION_COOKIE from environment" << endl;
sessionIsActive = true;
} else {
if (dbus_HAL->dbusSystemMethodCall( CK_SERVICE, CK_MANAGER_OBJECT,
CK_MANAGER_IFACE, "GetSessionForCookie",
&reply, DBUS_TYPE_OBJECT_PATH,
DBUS_TYPE_STRING, &cookie,
DBUS_TYPE_INVALID)) {
if (trace)
kdDebug() << "GetSessionForCookie returned: " << reply << endl;
if (reply != NULL) {
dbus_bool_t i_reply;
consoleKitSession = reply;
if (dbus_HAL->dbusSystemMethodCall( CK_SERVICE, consoleKitSession,
CK_SESSION_IFACE, "IsActive",
&i_reply, DBUS_TYPE_BOOLEAN,
DBUS_TYPE_INVALID)) {
sessionIsActive = ((i_reply != 0) ? true: false);
if (trace)
kdDebug() << "IsActive returned: " << sessionIsActive << endl;
retval = true;
} else {
kdError() << "Could get session cookie and session name, but not "
<< "but not the status of the session. Assume for now "
<< "the Session is inactive!" << endl;
sessionIsActive = false;
}
}
}
}
}
kdDebugFuncOut(trace);
return retval;
}
/*!
* This function check for a given UDI, if we should handle a device
* \param _udi TQString with the UDI of the device
* \param *type pointer to a integer to return the type of the device, see \ref device_type
* \return Boolean with info if we should handle the device.
* \retval true if we should handle
* \retval false if not
*/
bool HardwareInfo::checkIfHandleDevice ( TQString _udi, int *type) {
kdDebugFuncIn(trace);
TQStringList _cap;
bool ret = true;
if (dbus_HAL->halGetPropertyStringList( _udi, "info.capabilities", &_cap) && !_cap.isEmpty()) {
if (_cap.contains("ac_adapter")) {
*type = BATTERY;
} else if (_cap.contains("button")) {
TQString _val;
if (dbus_HAL->halGetPropertyString( _udi, "button.type", &_val)) {
if (_val.startsWith("lid")) {
*type = LID;
} else if ( _val.startsWith("power")) {
*type = BUTTON_POWER;
} else if ( _val.startsWith("sleep")) {
*type = BUTTON_SLEEP;
} else {
ret = false;
}
} else {
ret = false;
}
} else if (_cap.contains("battery")) {
*type = BATTERY;
} else if (_cap.contains("laptop_panel")) {
*type = LAPTOP_PANEL;
} else {
ret = false;
kdDebug() << "Device with capability " << _cap.join(", ") << " unhandled" << endl;
}
} else {
ret = false;
}
if (!ret) *type = UNKNOWN_DEVICE;
kdDebugFuncOut(trace);
return ret;
}
// --> set some values for devices
/*!
* This function set the warning level for the primary battery collection
* If all give param are -1 or not set this function force the current
* settings to the primary battery collection.
* \param _warn value for the state BAT_WARN or -1
* \param _low value for the state BAT_LOW or -1
* \param _crit value for the state BAT_CRIT or -1
*/
void HardwareInfo::setPrimaryBatteriesWarningLevel (int _warn, int _low, int _crit ) {
if (trace) kdDebug() << funcinfo << "IN: " << "warn: " << _warn << " low: " << _low << " crit: " << _crit << endl;
if (_warn > -1 && _low > -1 && _crit > -1 ){
primaryBatteriesWarnLevel = _warn;
primaryBatteriesLowLevel = _low;
primaryBatteriesCriticalLevel = _crit;
}
if (primaryBatteries) {
primaryBatteries->setWarnLevel( primaryBatteriesWarnLevel );
primaryBatteries->setLowLevel( primaryBatteriesLowLevel );
primaryBatteries->setCritLevel( primaryBatteriesCriticalLevel );
if (!BatteryList.isEmpty()) {
primaryBatteries->refreshInfo( BatteryList, true );
}
}
kdDebugFuncOut(trace);
}
// --> init HW information section -- START <---
/*!
* The function checks if the machine is a laptop.
*/
void HardwareInfo::checkIsLaptop () {
kdDebugFuncIn(trace);
TQString ret;
if (dbus_HAL->halGetPropertyString(HAL_COMPUTER_UDI, "system.formfactor", &ret)) {
if (!ret.isEmpty() && ret.startsWith("laptop"))
laptop = true;
else
laptop = false;
} else {
// error case
laptop = false;
}
kdDebugFuncOut(trace);
}
/*!
* The function checks wether the machine support ACPI/APM/PMU or not.
*/
void HardwareInfo::checkPowermanagement() {
kdDebugFuncIn(trace);
TQString ret;
has_APM = false;
has_ACPI = false;
has_PMU = false;
if (dbus_HAL->halGetPropertyString( HAL_COMPUTER_UDI, "power_management.type", &ret)) {
if (ret.isEmpty()) {
return;
} else if (ret.startsWith("acpi")) {
has_ACPI = true;
} else if (ret.startsWith("apm")) {
has_APM = true;
} else if (ret.startsWith("pmu")) {
has_PMU = true;
}
}
kdDebugFuncOut(trace);
}
/*!
* The function checks wether the machine can suspend/standby.
*/
void HardwareInfo::checkSuspend() {
kdDebugFuncIn(trace);
TQStringList ret;
bool _ret_b = false;
suspend_states = SuspendStates();
if (dbus_HAL->halGetPropertyStringList( HAL_COMPUTER_UDI, HAL_PM_IFACE ".method_names",
&ret )) {
// check for suspend2ram
if (dbus_HAL->halGetPropertyBool( HAL_COMPUTER_UDI, "power_management.can_suspend", &_ret_b ) ||
dbus_HAL->halGetPropertyBool( HAL_COMPUTER_UDI, "power_management.can_suspend_to_ram",
&_ret_b )) {
suspend_states.suspend2ram_can = _ret_b;
if (_ret_b) {
if (ret.contains( "Suspend" )) {
suspend_states.suspend2ram = true;
suspend_states.suspend2ram_allowed = dbus_HAL->isUserPrivileged(PRIV_SUSPEND,
HAL_COMPUTER_UDI);
}
} else {
suspend_states.suspend2ram = false;
suspend_states.suspend2ram_allowed = -1;
}
} else {
suspend_states.suspend2ram_can = false;
suspend_states.suspend2ram = false;
suspend_states.suspend2ram_allowed = -1;
}
// check for suspend2disk
if (dbus_HAL->halGetPropertyBool( HAL_COMPUTER_UDI, "power_management.can_hibernate", &_ret_b ) ||
dbus_HAL->halGetPropertyBool( HAL_COMPUTER_UDI, "power_management.can_suspend_to_disk",
&_ret_b )) {
suspend_states.suspend2disk_can = _ret_b;
if (_ret_b) {
if (ret.contains( "Hibernate" )) {
suspend_states.suspend2disk = true;
suspend_states.suspend2disk_allowed =
dbus_HAL->isUserPrivileged(PRIV_HIBERNATE,
HAL_COMPUTER_UDI);
}
} else {
suspend_states.suspend2disk = false;
suspend_states.suspend2disk_allowed = -1;
}
} else {
suspend_states.suspend2disk_can = false;
suspend_states.suspend2disk = false;
suspend_states.suspend2disk_allowed = -1;
}
// check for StandBy
if (dbus_HAL->halGetPropertyBool( HAL_COMPUTER_UDI, "power_management.can_standby", &_ret_b )) {
suspend_states.standby_can = _ret_b;
if (_ret_b) {
if (ret.contains( "Standby" )) {
suspend_states.standby = true;
suspend_states.standby_allowed = dbus_HAL->isUserPrivileged(PRIV_STANDBY,
HAL_COMPUTER_UDI);
}
} else {
suspend_states.standby = false;
suspend_states.standby_allowed = -1;
}
} else {
suspend_states.standby_can = false;
suspend_states.standby = false;
suspend_states.standby_allowed = -1;
}
}
kdDebugFuncOut(trace);
}
/*!
* The function checks wether the machine support CPU frequency changes
* via HAL.
*/
void HardwareInfo::checkCPUFreq() {
kdDebugFuncIn(trace);
bool ret = false;
if (dbus_HAL->halQueryCapability( HAL_COMPUTER_UDI, "cpufreq_control", &ret )) {
cpuFreq = ret;
cpuFreqAllowed = dbus_HAL->isUserPrivileged( PRIV_CPUFREQ, HAL_COMPUTER_UDI);
checkCurrentCPUFreqPolicy();
} else {
cpuFreq = false;
}
kdDebugFuncOut(trace);
}
/*!
* The function check the currently selected CPU Frequency policy
* \return the current policy
*/
cpufreq_type HardwareInfo::checkCurrentCPUFreqPolicy() {
kdDebugFuncIn(trace);
char *gov;
cpufreq_type _current = UNKNOWN_CPUFREQ;
if (cpuFreq) {
if (dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, HAL_COMPUTER_UDI,
HAL_CPUFREQ_IFACE, "GetCPUFreqGovernor",
&gov, DBUS_TYPE_STRING, DBUS_TYPE_INVALID)) {
if (gov != NULL) {
kdDebug() << "got CPU Freq gov: " << gov << endl;
if (!strcmp(gov, "ondemand") || !strcmp(gov, "userspace") ||
!strcmp(gov, "conservative")) {
_current = DYNAMIC;
} else if (!strcmp(gov, "powersave")) {
_current = POWERSAVE;
} else if (!strcmp(gov, "performance")) {
_current = PERFORMANCE;
} else {
kdError() << "Got unknown CPUFreq Policy back: " << gov << endl;
}
cpuFreqGovernor = gov;
}
else {
kdWarning() << "Could not get information about current governor" << endl;
}
} else {
kdWarning() << "Could not get information about current governor" << endl;
}
} else {
kdWarning() << "CPU Frequency interface not supported by machine or HAL" << endl;
}
if (_current != currentCPUFreqPolicy) {
currentCPUFreqPolicy = _current;
update_info_cpufreq_policy_changed = true;
emit currentCPUFreqPolicyChanged();
} else {
update_info_cpufreq_policy_changed = false;
}
kdDebugFuncOut(trace);
return currentCPUFreqPolicy;
}
/*!
* The function checks wether the machine provide a brightness interface and init
* (if needed) brightness information.
*/
void HardwareInfo::checkBrightness() {
kdDebugFuncIn(trace);
TQStringList devices;
brightness = false;
currentBrightnessLevel = -1;
availableBrightnessLevels = -1;
if( dbus_HAL->halFindDeviceByCapability("laptop_panel", &devices)) {
if (devices.isEmpty()) {
udis.remove("laptop_panel");
kdDebug() << "no device with category laptop_panel found" << endl;
kdDebugFuncOut(trace);
return;
} else {
int retval;
kdDebug() << "laptop_panel device found: " << devices.first() << endl;
// we should asume there is only one laptop panel device in the system
if (dbus_HAL->halGetPropertyInt(devices.first(), "laptop_panel.num_levels", &retval )) {
udis.insert("laptop_panel", new TQString( devices.first() ));
if (!allUDIs.contains( devices.first() ))
allUDIs.append( devices.first() );
if (retval > 1) {
dbus_HAL->halGetPropertyBool(devices.first(), "laptop_panel.brightness_in_hardware",
&brightness_in_hardware);
availableBrightnessLevels = retval;
#ifdef USE_LIBHAL_POLICYCHECK
brightnessAllowed = dbus_HAL->isUserPrivileged( PRIV_LAPTOP_PANEL,
devices.first());
// TODO: check brightnessAllowed
#endif
brightness = true;
// get the current level via GetBrightness
checkCurrentBrightness();
} else {
kdError() << "Found a Panel, but laptop_panel.num_levels < 2, which means "
<< "KPowersave can't set usefull values" << endl;
}
}
}
}
kdDebugFuncOut(trace);
}
/*!
* The function check the current brigthness
*/
void HardwareInfo::checkCurrentBrightness() {
kdDebugFuncIn(trace);
if (brightness) {
int retval;
// get the current level via GetBrightness
if (dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, *udis["laptop_panel"], HAL_LPANEL_IFACE,
"GetBrightness", &retval, DBUS_TYPE_INT32,
DBUS_TYPE_INVALID ) ) {
currentBrightnessLevel = (int) retval;
}
}
kdDebugFuncOut(trace);
}
/*!
* The function initialise the hardware information and collect all
* initial information from HAL.
* \return boolean with result of the operation
* \retval true if successful
* \retval false else, if a error occurs
*/
bool HardwareInfo::intialiseHWInfo() {
kdDebugFuncIn(trace);
TQStringList ret;
if (!dbus_HAL->isConnectedToDBUS() || !dbus_HAL->isConnectedToHAL())
return false;
if( dbus_HAL->halFindDeviceByCapability("ac_adapter", &ret)) {
// there should be normaly only one device, but let be sure
for ( TQStringList::iterator it = ret.begin(); it != ret.end(); ++it ) {
// we need a deep copy
udis.insert("acadapter", new TQString( *it ));
if (!allUDIs.contains( *it ))
allUDIs.append( *it );
checkACAdapterState();
}
}
ret.clear();
if( dbus_HAL->halFindDeviceByString("button.type", "lid", &ret)) {
// there should be normaly only one device, but let be sure
for ( TQStringList::iterator it = ret.begin(); it != ret.end(); ++it ) {
// we need a deep copy
udis.insert("lidclose", new TQString( *it ));
if (!allUDIs.contains( *it ))
allUDIs.append( *it );
checkLidcloseState();
}
}
ret.clear();
// find batteries and fill battery information
if( dbus_HAL->halFindDeviceByCapability("battery", &ret)) {
if (!ret.isEmpty()) {
// there should be normaly only one device, but let be sure
for ( TQStringList::iterator it = ret.begin(); it != ret.end(); ++it ) {
if (!allUDIs.contains( *it ))
allUDIs.append( *it );
BatteryList.append( new Battery(dbus_HAL, *it) );
}
// connect to signals for primary batteries:
Battery *bat;
for (bat = BatteryList.first(); bat; bat = BatteryList.next() ) {
if (bat->getType() == BAT_PRIMARY) {
connect(bat, TQT_SIGNAL(changedBattery()),this, TQT_SLOT(updatePrimaryBatteries()));
}
}
}
}
kdDebugFuncOut(trace);
return true;
}
/*!
* The function/TQT_SLOT checks the state of the AC adapter.
*/
void HardwareInfo::checkACAdapterState() {
kdDebugFuncIn(trace);
if ( udis["acadapter"] ) {
bool _state;
if (dbus_HAL->halGetPropertyBool(*udis["acadapter"] , "ac_adapter.present", &_state )) {
if (_state != acadapter) {
acadapter = _state;
update_info_ac_changed = true;
emit ACtqStatus( acadapter );
} else {
update_info_ac_changed = false;
}
} else {
// we use true as default e.g. for workstations
acadapter = true;
}
}
kdDebugFuncOut(trace);
}
/*!
* The function checks the state of the Lidclose button.
*/
void HardwareInfo::checkLidcloseState() {
kdDebugFuncIn(trace);
if ( udis["lidclose"] ) {
bool _state;
if (dbus_HAL->halGetPropertyBool(*udis["lidclose"] , "button.state.value", &_state )) {
if (_state != lidclose) {
lidclose = _state;
emit lidclosetqStatus( lidclose );
}
} else {
lidclose = false;
}
}
kdDebugFuncOut(trace);
}
/*!
* This funtion is used to call a update of a battery value for a given
* UDI and the given changed property
* \param udi TQString with the UDI of the battery
* \param property TQString with the changed property
*/
void HardwareInfo::updateBatteryValues (TQString udi, TQString property) {
kdDebugFuncIn(trace);
if (!udi.isEmpty() && allUDIs.contains( udi )) {
// find effected battery object
Battery *bat;
for (bat = BatteryList.first(); bat; bat = BatteryList.next() ) {
if (udi.startsWith( bat->getUdi())) {
// found a battery with udi
bat->updateProperty(udi, property);
}
}
} else {
kdDebug() << "UDI is empty or not in the list of monitored devices: " << udi << endl;
}
kdDebugFuncOut(trace);
return;
}
/*!
* This function refresh the information for the primary battery collection.
*/
void HardwareInfo::updatePrimaryBatteries () {
kdDebugFuncIn(trace);
if (!BatteryList.isEmpty()) {
if (primaryBatteries->getNumBatteries() < 1) {
setPrimaryBatteriesWarningLevel();
primaryBatteries->refreshInfo( BatteryList );
connect(primaryBatteries, TQT_SIGNAL(batteryChanged()), this,
TQT_SLOT(setPrimaryBatteriesChanges()));
connect(primaryBatteries, TQT_SIGNAL(batteryWarnState(int,int)), this,
TQT_SLOT(emitBatteryWARNState(int,int)));
} else {
setPrimaryBatteriesWarningLevel();
primaryBatteries->refreshInfo( BatteryList );
}
} else {
primaryBatteries = new BatteryCollection(BAT_PRIMARY);
}
kdDebugFuncOut(trace);
}
/*!
* This function set the change status for the primary battery collection
*/
void HardwareInfo::setPrimaryBatteriesChanges () {
kdDebugFuncIn(trace);
update_info_primBattery_changed = true;
emit primaryBatteryChanged();
kdDebugFuncOut(trace);
}
/*!
* This slot emit a signal if a warning state of a battery reached
*/
void HardwareInfo::emitBatteryWARNState (int type, int state) {
kdDebugFuncIn(trace);
if (type == BAT_PRIMARY)
emit primaryBatteryChanged();
else
emit generalDataChanged();
emit batteryWARNState(type, state);
kdDebugFuncOut(trace);
}
// --> init HW information section -- END <---
// --> HAL method call (trigger actions) section -- START <---
/*!
* Function to trigger a suspend via HAL
* \param suspend enum of suspend_type with the requested suspend
* \return boolean with result of the operation
* \retval true if successful
* \retval false else, if a error occurs
*/
bool HardwareInfo::suspend( suspend_type suspend ) {
kdDebugFuncIn(trace);
calledSuspend = TQTime();
if (dbus_HAL->isConnectedToDBUS() && dbus_HAL->isConnectedToHAL()) {
switch (suspend) {
case SUSPEND2DISK:
if (suspend_states.suspend2disk && (suspend_states.suspend2disk_allowed != 0)) {
if (dbus_HAL->dbusMethodCallSuspend("Hibernate")) {
calledSuspend.start();
return true;
} else {
return false;
}
} else {
if ( !suspend_states.suspend2disk )
kdDebug() << "The machine does not support suspend to disk." << endl;
else
kdWarning() << "Policy forbid user to trigger suspend to disk" << endl;
return false;
}
break;
case SUSPEND2RAM:
if (suspend_states.suspend2ram && (suspend_states.suspend2ram_allowed != 0)) {
if (dbus_HAL->dbusMethodCallSuspend("Suspend")) {
calledSuspend.start();
return true;
} else {
return false;
}
} else {
if ( !suspend_states.suspend2ram )
kdDebug() << "The machine does not support suspend to ram." << endl;
else
kdWarning() << "Policy forbid user to trigger suspend to ram" << endl;
return false;
}
break;
case STANDBY:
if (suspend_states.standby && (suspend_states.standby_allowed != 0)) {
if (dbus_HAL->dbusMethodCallSuspend("Standby")) {
calledSuspend.start();
return true;
} else {
return false;
}
} else {
if ( !suspend_states.standby )
kdDebug() << "The machine does not support standby." << endl;
else
kdWarning() << "Policy forbid user to trigger standby" << endl;
return false;
}
break;
default:
return false;
}
}
kdDebugFuncOut(trace);
return false;
}
/*!
* Function to set brightness via HAL (if supported by hardware)
* \param level Integer with the level to set, (range: 0 - \ref availableBrightnessLevels )
* \param percent Integer with the brightness percentage to set
* \return boolean with result of the operation
* \retval true if successful
* \retval false else, if a error occurs
*/
bool HardwareInfo::setBrightness ( int level, int percent ){
if (trace) kdDebug() << funcinfo << "IN: " << "level: " << level << " percent: " << percent << endl;
bool retval = false;
if ((level == -1) && (percent >= 0)) {
if (percent == 0) {
level = 0;
} else if (percent >= 98) {
level = (availableBrightnessLevels - 1);
} else {
level = (int)((float)availableBrightnessLevels * ((float)percent/100.0));
if (level > (availableBrightnessLevels -1))
level = availableBrightnessLevels -1;
kdDebug() << "percentage mapped to new level: " << level << endl;
}
}
if (dbus_HAL->isConnectedToDBUS() && dbus_HAL->isConnectedToHAL()) {
if (!brightness)
checkBrightness();
if (!brightness || (level < 0 ) || (level >= availableBrightnessLevels)) {
kdError() << "Change brightness or requested level not supported " << endl;
} else {
if (currentBrightnessLevel == level) {
kdDebug() << "Brightness level not changed, requested level == current level" << endl;
retval = true;
} else {
if (dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, *udis["laptop_panel"],
HAL_LPANEL_IFACE, "SetBrightness",
DBUS_TYPE_INT32, &level,
DBUS_TYPE_INVALID )) {
retval = true;
}
}
}
}
// check for actual brightness level to be sure everything was set correct
checkCurrentBrightness();
kdDebugFuncOut(trace);
return retval;
}
/*!
* Function to set the CPU frequency policy via HAL.
* \param cpufreq enum of cpufreq_type with the policy to set
* \param limit integer with range 0 - 100 (only if cpufreq == DYNAMIC)
* \return boolean with result of the operation
* \retval true if successful
* \retval false else, if a error occurs
*/
bool HardwareInfo::setCPUFreq ( cpufreq_type cpufreq, int limit ) {
if (trace) kdDebug() << funcinfo << "IN: " << "cpufreq_type: " << cpufreq << " limit: " << limit << endl;
if (!cpuFreq) {
kdError() << "This machine does not support change the CPU Freq via HAL" << endl;
return false;
}
if (cpuFreqAllowed == 0) {
kdError() << "Could not set CPU Freq, this not the needed privileges." << endl;
return false;
}
if (dbus_HAL->isConnectedToDBUS() && dbus_HAL->isConnectedToHAL()) {
dbus_bool_t consider = (dbus_bool_t) getAcAdapter();
TQStringList dynamic;
if (checkCurrentCPUFreqPolicy() == cpufreq) {
if (cpufreq == DYNAMIC && !cpuFreqGovernor.startsWith("ondemand")) {
kdDebug() << "CPU Freq Policy is already DYNAMIC, but not governor is currently "
<< "not 'ondemand'. Try to set ondemand governor." << endl;
} else {
kdDebug() << "Didn't change Policy, was already set." << endl;
return true;
}
}
switch (cpufreq) {
case PERFORMANCE:
if (!setCPUFreqGovernor("performance")) {
kdError() << "Could not set CPU Freq to performance policy" << endl;
return false;
}
break;
case DYNAMIC:
dynamic << "ondemand" << "userspace" << "conservative";
for (TQStringList::Iterator it = dynamic.begin(); it != dynamic.end(); it++){
kdDebug() << "Try to set dynamic CPUFreq to: " << *it << endl;
if (setCPUFreqGovernor((*it).latin1())) {
kdDebug() << "Set dynamic successful to: " << *it << endl;
break;
}
}
// set dynamic performance limit
if (!dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, HAL_COMPUTER_UDI,
HAL_CPUFREQ_IFACE,
"SetCPUFreqPerformance",
DBUS_TYPE_INT32, &limit,
DBUS_TYPE_INVALID)) {
kdError() << "Could not call/set SetCPUFreqPerformance with value: "
<< limit << endl;
}
// correct set ondemand
if (!dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, HAL_COMPUTER_UDI,
HAL_CPUFREQ_IFACE,
"SetCPUFreqConsiderNice",
DBUS_TYPE_BOOLEAN, &consider,
DBUS_TYPE_INVALID)) {
kdError() << "Couldn't set SetCPUFreqConsiderNice for DYNAMIC" << endl;
}
break;
case POWERSAVE:
if (!setCPUFreqGovernor("powersave")) {
kdError() << "Could not set CPU Freq to powersave policy" << endl;
return false;
}
break;
default:
kdWarning() << "Unknown cpufreq_type: " << cpufreq << endl;
return false;
}
// check if the policy was really set (and emit signal)
if (checkCurrentCPUFreqPolicy() == cpufreq) {
// update_info_cpufreq_policy_changed = true;
// emit currentCPUFreqPolicyChanged();
return true;
} else {
return false;
}
} else {
return false;
}
}
/*!
* Function to set the CPU governor via HAL.
* \param governor char * with the name of the governor
* \return boolean with result of the operation
* \retval true if successful
* \retval false else, if a error occurs
*/
bool HardwareInfo::setCPUFreqGovernor( const char *governor ) {
kdDebugFuncIn(trace);
int reply;
bool ret = true;
kdDebug() << "Try to set CPUFreq to governor: " << governor << endl;
if (!dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, HAL_COMPUTER_UDI,
HAL_CPUFREQ_IFACE, "SetCPUFreqGovernor",
&reply, DBUS_TYPE_INVALID,
DBUS_TYPE_STRING, &governor,
DBUS_TYPE_INVALID)) {
kdError() << "Could not set CPU Freq to governor: " << governor << endl;
ret = false;
}
kdDebugFuncOut(trace);
return ret;
}
/*!
* Function to set the powersave mode (incl. e.g. disk settings) via HAL.
* \param on boolean which tell if enable/disable powersave mode
* \return boolean with result of the operation
* \retval true if successful
* \retval false else, if a error occurs
*/
bool HardwareInfo::setPowerSave( bool on ) {
kdDebugFuncIn(trace);
bool retval = false;
if (dbus_HAL->isConnectedToDBUS() && dbus_HAL->isConnectedToHAL()) {
dbus_bool_t _tmp = (dbus_bool_t) on;
int reply;
#ifdef USE_LIBHAL_POLICYCHECK
if (dbus_HAL->isUserPrivileged(PRIV_SETPOWERSAVE, HAL_COMPUTER_UDI) != 0) {
#else
if (true) {
#endif
if (!dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, HAL_COMPUTER_UDI,
HAL_PM_IFACE, "SetPowerSave",
&reply, DBUS_TYPE_INT32,
DBUS_TYPE_BOOLEAN, &_tmp,
DBUS_TYPE_INVALID)) {
kdError() << "Could not call/set SetPowerSave on HAL, "
<< "could be a bug in HAL spec" << endl;
} else {
retval = true;
}
} else {
kdError() << "The user isn't allowed to call SetPowerSave() on HAL. "
<< "Maybe KPowersave run not in a active session." << endl;
}
}
kdDebugFuncOut(trace);
return retval;
}
/*!
* Function to call GetSchedPowerSavings() via HAL.
* \return boolean with result of the operation
* \retval true if successful
* \retval false else, if a error occurs
*/
bool HardwareInfo::getSchedPowerSavings() {
kdDebugFuncIn(trace);
bool returnval = false;
if (dbus_HAL->isConnectedToDBUS() && dbus_HAL->isConnectedToHAL()) {
dbus_bool_t ret;
//NOTE: the kernel only allow 1/0 for the related sysfs entry
if (dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, HAL_COMPUTER_UDI,
HAL_CPUFREQ_IFACE, "GetSchedPowerSavings",
&ret, DBUS_TYPE_BOOLEAN, DBUS_TYPE_INVALID)) {
schedPowerSavings = ((ret != 0) ? true: false);
returnval = true;
} else {
schedPowerSavings = false;
kdWarning() << "Could not call GetSchedPowerSavings() " << endl;
}
}
kdDebugFuncOut(trace);
return returnval;
}
/*!
* Function to call SetSchedPowerSavings() via HAL. Note: this would only work on
* Multiprocessor/-core machines.
* \return boolean with result of the operation
* \retval true if successful
* \retval false else, if a error occurs
*/
bool HardwareInfo::setSchedPowerSavings( bool enable ) {
kdDebugFuncIn(trace);
bool retval = false;
if (dbus_HAL->isConnectedToDBUS() && dbus_HAL->isConnectedToHAL()) {
dbus_bool_t _tmp = (dbus_bool_t) enable;
//NOTE: the kernel only allow 1/0 for the related sysfs entry
if (dbus_HAL->dbusSystemMethodCall( HAL_SERVICE, HAL_COMPUTER_UDI,
HAL_CPUFREQ_IFACE,
"SetCPUFreqPerformance",
DBUS_TYPE_BOOLEAN, &_tmp,
DBUS_TYPE_INVALID)) {
retval = true;
} else {
kdWarning() << "Could not call SetSchedPowerSavings() " << endl;
}
}
kdDebugFuncOut(trace);
return retval;
}
// --> HAL method call (trigger actions) section -- END <---
// --> private helper functions/slots to forward/handle events -- START <--
// need this functions to make events from HAL/D-Bus independent
// from QT event loop and to allow QT3 D-Bus bindings to get not
// blocked by normal KDE/QT (GUI) calls
/*!
* Function to emit the signal for the Power button.
*/
void HardwareInfo::emitPowerButtonPressed() {
if (sessionIsActive) {
emit powerButtonPressed();
} else {
kdWarning() << "Session is not active, don't react on power button event!" << endl;
}
}
/*!
* Function to emit the signal for the Sleep button.
*/
void HardwareInfo::emitSleepButtonPressed() {
if (sessionIsActive) {
emit sleepButtonPressed();
} else {
kdWarning() << "Session is not active, don't react on sleep button event!" << endl;
}
}
/*!
* Function to emit the signal for the s2disk button.
*/
void HardwareInfo::emitS2diskButtonPressed() {
if (sessionIsActive) {
emit s2diskButtonPressed();
} else {
kdWarning() << "Session is not active, don't react on suspend2disk button event!" << endl;
}
}
/*!
* Function to emit the signal about changes in the session state
*/
void HardwareInfo::emitSessionActiveState() {
if (sessionIsActive) {
if (!dbus_HAL->aquiredPolicyPowerInterface()) {
dbus_HAL->aquirePolicyPowerIface();
}
} else {
if (dbus_HAL->aquiredPolicyPowerInterface()) {
dbus_HAL->releasePolicyPowerIface();
}
}
emit desktopSessionIsActive(sessionIsActive);
}
/*!
* Function to set the brightess a step up.
* \param percentageStep Integer of next step should get set
* \return result of the operation
* \retval true if could get set
* \retval false else
*/
bool HardwareInfo::setBrightnessUp(int percentageStep) {
kdDebugFuncIn(trace);
bool retval = false;
checkCurrentBrightness();
if (supportBrightness() && (getCurrentBrightnessLevel() >= 0) &&
(getCurrentBrightnessLevel() != (getMaxBrightnessLevel()-1))) {
int setTo = 0;
int minPercStep = 10;
int currentPerc = (int)(((float)getCurrentBrightnessLevel()/(float)(getMaxBrightnessLevel()-1))*100.0);
if (percentageStep > 0 && (percentageStep <= (100-currentPerc))) {
minPercStep = percentageStep;
}
if ((currentPerc + minPercStep) > 100) {
// set to 100 %
setTo = getMaxBrightnessLevel() -1;
} else {
setTo = (int)(((float)(getMaxBrightnessLevel()-1))*(((float)(currentPerc + minPercStep))/100.0));
if ((setTo == getCurrentBrightnessLevel()) && (setTo < (getMaxBrightnessLevel() -1))) {
setTo++;
}
}
if (trace) {
kdDebug() << "Max: " << getMaxBrightnessLevel()
<< " Current: " << getCurrentBrightnessLevel()
<< " minPercStep: " << minPercStep
<< " currentPerc: " << currentPerc
<< " setTo: " << setTo << endl;
}
retval = setBrightness(setTo, -1);
}
kdDebugFuncOut(trace);
return retval;
}
/*!
* Function to set the brightess a step up.
* \param percentageStep Integer of next step should get set
* \return result of the operation
* \retval true if could get set
* \retval false else
*/
bool HardwareInfo::setBrightnessDown(int percentageStep) {
kdDebugFuncIn(trace);
bool retval = false;
checkCurrentBrightness();
if (supportBrightness() && (getCurrentBrightnessLevel() > 0)) {
int setTo = 0;
int minPercStep = 10;
int currentPerc = (int)(((float)getCurrentBrightnessLevel()/(float)(getMaxBrightnessLevel()-1))*100.0);
if (percentageStep > 0 && (percentageStep < currentPerc)) {
minPercStep = percentageStep;
}
if ((currentPerc - minPercStep) < 0) {
setTo = 0;
} else {
setTo = (int)(((float)(getMaxBrightnessLevel()-1))*(((float)(currentPerc - minPercStep))/100.0));
if ((setTo == getCurrentBrightnessLevel()) && (setTo > 0)) {
setTo--;
}
}
if (trace) {
kdDebug() << "Max: " << getMaxBrightnessLevel()
<< " Current: " << getCurrentBrightnessLevel()
<< " minPercStep: " << minPercStep
<< " currentPerc: " << currentPerc
<< " setTo: " << setTo << endl;
}
retval = setBrightness(setTo, -1);
}
kdDebugFuncOut(trace);
return retval;
}
/*!
* Function to handle the signal for the brightness up button/key
*/
void HardwareInfo::brightnessUpPressed() {
kdDebugFuncIn(trace);
if (brightness) {
if (!sessionIsActive) {
kdWarning() << "Session is not active, don't react on brightness up key event!" << endl;
} else {
if (currentBrightnessLevel < availableBrightnessLevels) {
setBrightnessUp();
} else {
kdWarning() << "Could not set brightness to higher level, it's already set to max." << endl;
}
}
}
kdDebugFuncOut(trace);
}
/*!
* Function to handle the signal for the brightness down button/key
*/
void HardwareInfo::brightnessDownPressed() {
kdDebugFuncIn(trace);
if (brightness) {
if (!sessionIsActive) {
kdWarning() << "Session is not active, don't react on brightness down key event!" << endl;
} else {
if (currentBrightnessLevel > 0) {
setBrightnessDown();
} else {
kdWarning() << "Could not set brightness to lower level, it's already set to min." << endl;
}
}
}
}
// --> private helper slots to forward/handle events -- END <--
// --> get private members section -- START <---
/*!
* The function return the current state of the ac adapter.
* \return boolean with the current state
* \retval true if adapter is present/connected or unknown
* \retval false if not
*/
bool HardwareInfo::getAcAdapter() const {
return acadapter;
}
/*!
* The function return the current state of the lidclose button.
* \return boolean with the current state
* \retval true if the lid is closed
* \retval false if the lid is opend
*/
bool HardwareInfo::getLidclose() const {
return lidclose;
}
/*!
* The function return the maximal available brightness level
* \return Integer with max level or -1 if not supported
*/
int HardwareInfo::getMaxBrightnessLevel() const {
if (brightness)
return availableBrightnessLevels;
else
return -1;
}
/*!
* The function return the current brightness level
* \return Integer with max level or -1 if not supported or unkown
*/
int HardwareInfo::getCurrentBrightnessLevel() const {
if (brightness)
return currentBrightnessLevel;
else
return -1;
}
/*!
* The function return the current set CPU Frequency Policy
* \return Integer with currently set Policy or -1 if not supported or unkown
*/
int HardwareInfo::getCurrentCPUFreqPolicy() const {
return currentCPUFreqPolicy;
}
/*!
* The function return information if the system support the different
* suspend/standby methodes and if the user can call them.
* \return struct with information from \ref suspend_states
* TODO: check if we maybe should replace this by more different functions
*/
SuspendStates HardwareInfo::getSuspendSupport() const {
return suspend_states;
}
/*!
* The function return a pointer to the battery collection of primary batteries.
* \return BatteryCollection with type == PRIMARY
*/
BatteryCollection* HardwareInfo::getPrimaryBatteries() const {
return primaryBatteries;
}
/*!
* The function return all batteries
* \return TQPtrList<Battery>
*/
TQPtrList<Battery> HardwareInfo::getAllBatteries() const {
return BatteryList;
}
/*!
* The function return the status of \ref laptop.
* \return boolean with info if machine is a laptop
* \retval true if a laptop
* \retval false else/if not a laptop
*/
bool HardwareInfo::isLaptop() const {
return laptop;
}
/*!
* The function return info if there is a working connection to D-Bus and HAL.
* This mean if we get hardwareinformation
* \return boolean with info if D-Bus and HAL work
* \retval true if connected
* \retval false if not connected
*/
bool HardwareInfo::isOnline() const {
return (!dbus_terminated && !hal_terminated);
}
/*!
* The function return the status of \ref has_ACPI.
* \return boolean with info if machine support ACPI
* \retval true if support ACPI
* \retval false else
*/
bool HardwareInfo::hasACPI() const {
return has_ACPI;
}
/*!
* The function return the status of \ref has_APM.
* \return boolean with info if machine support APM
* \retval true if support APM
* \retval false else
*/
bool HardwareInfo::hasAPM() const {
return has_APM;
}
/*!
* The function return the status of \ref has_PMU.
* \return boolean with info if machine support PMU
* \retval true if support PMU
* \retval false else
*/
bool HardwareInfo::hasPMU() const {
return has_PMU;
}
/*!
* The function return the status of \ref brightness.
* \return boolean with info if machine support brightness changes via HAL
* \retval true if support brightness changes
* \retval false else
*/
bool HardwareInfo::supportBrightness() const {
return brightness;
}
/*!
* The function return the status of \ref cpuFreq.
* \return boolean with info if machine support change the CPU frequency via HAL
* \retval true if support brightness changes
* \retval false else
*/
bool HardwareInfo::supportCPUFreq() const {
return cpuFreq;
}
/*!
* The function return the status of \ref sessionIsActive.
* \return boolean with info if current desktop session is marked in ConsoleKit as activ
* \retval true if the current session is active
* \retval false else
*/
bool HardwareInfo::currentSessionIsActive() const {
return sessionIsActive;
}
/*!
* The function return \ref cpuFreqAllowed and tell by this if the user is allowed
* to change the CPU Freq.
* \return \ref cpuFreqAllowed
* \retval 0 allowed
* \retval 1 not allowed
* \retval -1 unknown
*/
int HardwareInfo::isCpuFreqAllowed () {
cpuFreqAllowed = dbus_HAL->isUserPrivileged( PRIV_CPUFREQ, HAL_COMPUTER_UDI);
return cpuFreqAllowed;
}
/*! check if the org.freedesktop.Policy.Power interface has an owner
* \return boolean with info if org.freedesktop.Policy.Power interface has an owner or not
* \retval true if there is a owner
* \retval false else
*/
bool HardwareInfo::isPolicyPowerIfaceOwned () {
return dbus_HAL->isPolicyPowerIfaceOwned();
}
// --> get private members section -- END <---
#include "hardware.moc"