path: root/tdecore/tdehw/tdehardwaredevices.h

/* This file is part of the TDE libraries
   Copyright (C) 2012 Timothy Pearson <kb9vqf@pearsoncomputing.net>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/
#ifndef _TDEHARDWAREDEVICES_H
#define _TDEHARDWAREDEVICES_H

// TDE includes
#include <tqobject.h>
#include <tqstring.h>
#include <tqptrlist.h>
#include <tqstringlist.h>
#include "kiconloader.h"
#include "tdelibs_export.h"

// udev includes
#include <libudev.h>
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <unistd.h>

// FIXME delete those headers after complete porting
#include "tdegenericdevice.h"
#include "tdestoragedevice.h"
#include "tdecpudevice.h"
#include "tdemainspowerdevice.h"
#include "tdebatterydevice.h"

/**
 * Hardware Device Access and Monitoring Library
 *
 * @author Timothy Pearson
 */

class TDENetworkConnectionManager;

namespace TDEHardwareEvent {
enum TDEHardwareEvent {
	HardwareListModified,
	MountTableModified,
	HardwareAdded,
	HardwareRemoved,
	HardwareUpdated,
	Other,
	Last = Other
};
};

class TDECORE_EXPORT TDESensorCluster
{
	public:
		/**
		*  Constructor.
		*/
		TDESensorCluster();

		TQString label;
		double current;
		double minimum;
		double maximum;
		double warning;
		double critical;
};

class TDECORE_EXPORT TDENetworkDevice : public TDEGenericDevice
{
	public:
		/**
		*  Constructor.
		*  @param Device type
		*/
		TDENetworkDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn=TQString::null);
		
		/**
		* Destructor.
		*/
		~TDENetworkDevice();

		/**
		* @return a TQString containing the network device's MAC address
		*/
		TQString macAddress();

		/**
		* @return a TQString containing the network device's operational state
		*/
		TQString state();

		/**
		* @return TRUE if carrier is present, FALSE if not
		*/
		bool carrierPresent();

		/**
		* @return TRUE if device is dormant, FALSE if not
		*/
		bool dormant();

		/**
		* @return a TQString containing the network device's IPv4 address
		*/
		TQString ipV4Address();

		/**
		* @return a TQString containing the network device's IPv6 address
		*/
		TQString ipV6Address();

		/**
		* @return a TQString containing the network device's IPv4 netmask
		*/
		TQString ipV4Netmask();

		/**
		* @return a TQString containing the network device's IPv6 netmask
		*/
		TQString ipV6Netmask();

		/**
		* @return a TQString containing the network device's IPv4 broadcast
		*/
		TQString ipV4Broadcast();

		/**
		* @return a TQString containing the network device's IPv6 broadcast
		*/
		TQString ipV6Broadcast();

		/**
		* @return a TQString containing the network device's IPv4 destination
		*/
		TQString ipV4Destination();

		/**
		* @return a TQString containing the network device's IPv6 destination
		*/
		TQString ipV6Destination();

		/**
		* @return a double with the number of received bytes, if available
		*/
		double rxBytes();

		/**
		* @return a double with the number of transmitted bytes, if available
		*/
		double txBytes();

		/**
		* @return a double with the number of received packets, if available
		*/
		double rxPackets();

		/**
		* @return a double with the number of transmitted packets, if available
		*/
		double txPackets();

		/**
		* @return a pointer to a TDENetworkConnectionManager object, if available
		*/
		TDENetworkConnectionManager* connectionManager();

	protected:
		/**
		* @param ma a TQString containing the network device's MAC address
		* @internal
		*/
		void internalSetMacAddress(TQString ma);

		/**
		* @param st a TQString containing the network device's operational state
		* @internal
		*/
		void internalSetState(TQString st);

		/**
		* @param TRUE if carrier is present, FALSE if not
		* @internal
		*/
		void internalSetCarrierPresent(bool cp);

		/**
		* @param TRUE if device is dormant, FALSE if not
		* @internal
		*/
		void internalSetDormant(bool dm);

		/**
		* @param ad a TQString containing the network device's IPv4 address
		* @internal
		*/
		void internalSetIpV4Address(TQString ad);

		/**
		* @param ad a TQString containing the network device's IPv6 address
		* @internal
		*/
		void internalSetIpV6Address(TQString ad);

		/**
		* @param nm a TQString containing the network device's IPv4 netmask
		* @internal
		*/
		void internalSetIpV4Netmask(TQString nm);

		/**
		* @param nm a TQString containing the network device's IPv6 netmask
		* @internal
		*/
		void internalSetIpV6Netmask(TQString nm);

		/**
		* @param br a TQString containing the network device's IPv4 broadcast
		* @internal
		*/
		void internalSetIpV4Broadcast(TQString br);

		/**
		* @param br a TQString containing the network device's IPv6 broadcast
		* @internal
		*/
		void internalSetIpV6Broadcast(TQString br);

		/**
		* @param ds a TQString containing the network device's IPv4 destination
		* @internal
		*/
		void internalSetIpV4Destination(TQString ds);

		/**
		* @param ds a TQString containing the network device's IPv6 destination
		* @internal
		*/
		void internalSetIpV6Destination(TQString ds);

		/**
		* @param rx a double with the number of received bytes, if available
		* @internal
		*/
		void internalSetRxBytes(double rx);

		/**
		* @param tx a double with the number of transmitted bytes, if available
		* @internal
		*/
		void internalSetTxBytes(double tx);

		/**
		* @param rx a double with the number of received packets, if available
		* @internal
		*/
		void internalSetRxPackets(double rx);

		/**
		* @param tx a double with the number of transmitted packets, if available
		* @internal
		*/
		void internalSetTxPackets(double tx);

		/**
		* @param mgr a pointer to a TDENetworkConnectionManager object, if available
		*/
		void internalSetConnectionManager(TDENetworkConnectionManager* mgr);

	private:
		TQString m_macAddress;
		TQString m_state;
		bool m_carrier;
		bool m_dormant;
		TQString m_ipV4Address;
		TQString m_ipV6Address;
		TQString m_ipV4Netmask;
		TQString m_ipV6Netmask;
		TQString m_ipV4Broadcast;
		TQString m_ipV6Broadcast;
		TQString m_ipV4Destination;
		TQString m_ipV6Destination;
		double m_rxbytes;
		double m_txbytes;
		double m_rxpackets;
		double m_txpackets;
		TDENetworkConnectionManager* m_connectionManager;

	friend class TDEHardwareDevices;
};

namespace TDEDisplayPowerLevel {
enum TDEDisplayPowerLevel {
	On,
	Standby,
	Suspend,
	Off
};
};

class TDECORE_EXPORT TDEBacklightDevice : public TDEGenericDevice
{
	public:
		/**
		*  Constructor.
		*  @param Device type
		*/
		TDEBacklightDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn=TQString::null);
		
		/**
		* Destructor.
		*/
		~TDEBacklightDevice();

		/**
		* @return a TDEDisplayPowerLevel::TDEDisplayPowerLevel with the current power level
		*/
		TDEDisplayPowerLevel::TDEDisplayPowerLevel powerLevel();

		/**
		* @return an integer with the number of discrete control steps available
		*/
		int brightnessSteps();

		/**
		* @return a double with the current brightness percentage
		*/
		double brightnessPercent();

		/**
		* @return TRUE if permissions allow brightness can be set, FALSE if not
		*/
		bool canSetBrightness();

		/**
		* @return an int with the current raw brightness
		*/
		int rawBrightness();

		/**
		* @param br an integer with the new raw brightness value
		*/
		void setRawBrightness(int br);

	protected:
		/**
		* @param pl a TDEDisplayPowerLevel::TDEDisplayPowerLevel with the current power level
		* @internal
		*/
		void internalSetPowerLevel(TDEDisplayPowerLevel::TDEDisplayPowerLevel pl);

		/**
		* @param br an integer with the maximum raw brightness value
		* @internal
		*/
		void internalSetMaximumRawBrightness(int br);

		/**
		* @param br an integer with the current raw brightness value
		* @internal
		*/
		void internalSetCurrentRawBrightness(int br);

	private:
		TDEDisplayPowerLevel::TDEDisplayPowerLevel m_powerLevel;
		int m_currentBrightness;
		int m_maximumBrightness;

	friend class TDEHardwareDevices;
};

typedef TQPair<unsigned int, unsigned int> TDEResolutionPair;
typedef TQValueList< TDEResolutionPair > TDEResolutionList;

class TDECORE_EXPORT TDEMonitorDevice : public TDEGenericDevice
{
	public:
		/**
		*  Constructor.
		*  @param Device type
		*/
		TDEMonitorDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn=TQString::null);
		
		/**
		* Destructor.
		*/
		~TDEMonitorDevice();

		/**
		* @return TRUE if a monitor is connected, FALSE if not
		*/
		bool connected();

		/**
		* @return TRUE if this port is enabled, FALSE if not
		*/
		bool enabled();

		/**
		* @return a TQByteArray containing this monitor's EDID information
		*/
		TQByteArray edid();

		/**
		* @return a TDEResolutionList containing this monitor's supported resolutions
		*/
		TDEResolutionList resolutions();

		/**
		* @return a TQString containing the display port type
		*/
		TQString portType();

		/**
		* @return a TDEDisplayPowerLevel::TDEDisplayPowerLevel with the current power level
		*/
		TDEDisplayPowerLevel::TDEDisplayPowerLevel powerLevel();

	protected:
		/**
		* @param TRUE if a monitor is connected, FALSE if not
		* @internal
		*/
		void internalSetConnected(bool cn);

		/**
		* @param TRUE if this port is enabled, FALSE if not
		* @internal
		*/
		void internalSetEnabled(bool en);

		/**
		* @param ed a TQByteArray containing this monitor's EDID information
		* @internal
		*/
		void internalSetEdid(TQByteArray ed);

		/**
		* @param rs a TDEResolutionList containing this monitor's supported resolutions
		* @internal
		*/
		void internalSetResolutions(TDEResolutionList rs);

		/**
		* @param pt a TQString containing the display port type
		* @internal
		*/
		void internalSetPortType(TQString pt);

		/**
		* @param pl a TDEDisplayPowerLevel::TDEDisplayPowerLevel with the current power level
		* @internal
		*/
		void internalSetPowerLevel(TDEDisplayPowerLevel::TDEDisplayPowerLevel pl);

	private:
		bool m_connected;
		bool m_enabled;
		TQByteArray m_edid;
		TDEResolutionList m_resolutions;
		TQString m_portType;
		TDEDisplayPowerLevel::TDEDisplayPowerLevel m_powerLevel;

	friend class TDEHardwareDevices;
};


typedef TQMap<TQString, TDESensorCluster> TDESensorClusterMap;

class TDECORE_EXPORT TDESensorDevice : public TDEGenericDevice
{
	public:
		/**
		*  Constructor.
		*  @param Device type
		*/
		TDESensorDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn=TQString::null);
		
		/**
		* Destructor.
		*/
		~TDESensorDevice();

		/**
		* @return a TDESensorClusterMap with the current sensor values
		*/
		TDESensorClusterMap values();

	protected:
		/**
		* @param a TDESensorClusterMap with the current sensor values
		* @internal
		*/
		void internalSetValues(TDESensorClusterMap cl);

	private:
		TDESensorClusterMap m_sensorValues;

	friend class TDEHardwareDevices;
};

namespace TDESystemFormFactor {
enum TDESystemFormFactor {
	Unclassified,
	Desktop,
	Laptop,
	Server,
	Other = 0x80000000
};
};

namespace TDESystemPowerState {
enum TDESystemPowerState {
	Active,
	Standby,
	Suspend,
	Hibernate,
	PowerOff,
	Reboot
};
};

namespace TDESystemHibernationMethod {
enum TDESystemHibernationMethod {
	Unsupported,
	Platform,
	Shutdown,
	Reboot,
	TestProc,
	Test
};
};

typedef TQValueList<TDESystemPowerState::TDESystemPowerState> TDESystemPowerStateList;
typedef TQValueList<TDESystemHibernationMethod::TDESystemHibernationMethod> TDESystemHibernationMethodList;

class TDECORE_EXPORT TDERootSystemDevice : public TDEGenericDevice
{
	public:
		/**
		*  Constructor.
		*  @param Device type
		*/
		TDERootSystemDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn=TQString::null);
		
		/**
		* Destructor.
		*/
		~TDERootSystemDevice();

		/**
		* @return a TDESystemFormFactor::TDESystemFormFactor with the system's form factor
		*/
		TDESystemFormFactor::TDESystemFormFactor formFactor();

		/**
		* @return a TDESystemPowerStateList with all available power states
		*/
		TDESystemPowerStateList powerStates();

		/**
		* @return a TDESystemHibernationMethodList with all available hibernation methods
		*/
		TDESystemHibernationMethodList hibernationMethods();

		/**
		* @return a TDESystemHibernationMethod::TDESystemHibernationMethod with the current hibernation method
		*/
		TDESystemHibernationMethod::TDESystemHibernationMethod hibernationMethod();

		/**
		* @return an unsigned long with the number of bytes required to hibernate
		*/
		unsigned long diskSpaceNeededForHibernation();

		/**
		* @return TRUE if permissions allow the hibernation method to be set, FALSE if not
		*/
		bool canSetHibernationMethod();

		/**
		* @return TRUE if hardware and permissions allow the system to enter standby, FALSE if not
		*/
		bool canStandby();

		/**
		* @return TRUE if hardware and permissions allow the system to be suspended, FALSE if not
		*/
		bool canSuspend();

		/**
		* @return TRUE if hardware and permissions allow the system to be hibernated, FALSE if not
		*/
		bool canHibernate();

		/**
		* @return TRUE if permissions allow the system to be powered down, FALSE if not
		*/
		bool canPowerOff();

		/**
		* @return TRUE if permissions allow the system to be rebooted, FALSE if not
		*/
		bool canReboot();

		/**
		* @param hm a TDESystemHibernationMethod::TDESystemHibernationMethod with the desired hibernation method
		*/
		void setHibernationMethod(TDESystemHibernationMethod::TDESystemHibernationMethod hm);

		/**
		* @param ps a TDESystemPowerState::TDESystemPowerState with the desired power state
		* @return TRUE if power state was set
		*/
		bool setPowerState(TDESystemPowerState::TDESystemPowerState ps);

	protected:
		/**
		* @param ff a TDESystemFormFactor::TDESystemFormFactor with the system's form factor
		* @internal
		*/
		void internalSetFormFactor(TDESystemFormFactor::TDESystemFormFactor ff);

		/**
		* @param ps a TDESystemPowerStateList with all available power states
		* @internal
		*/
		void internalSetPowerStates(TDESystemPowerStateList ps);

		/**
		* @param hm a TDESystemHibernationMethodList with all available hibernation methods
		* @internal
		*/
		void internalSetHibernationMethods(TDESystemHibernationMethodList hm);

		/**
		* @param hm a TDESystemHibernationMethod::TDESystemHibernationMethod with the current hibernation method
		* @internal
		*/
		void internalSetHibernationMethod(TDESystemHibernationMethod::TDESystemHibernationMethod hm);

		/**
		* @param sz an unsigned long with the number of bytes required to hibernate
		* @internal
		*/
		void internalSetDiskSpaceNeededForHibernation(unsigned long sz);

	private:
		TDESystemFormFactor::TDESystemFormFactor m_formFactor;
		TDESystemPowerStateList m_powerStates;
		TDESystemHibernationMethodList m_hibernationMethods;
		TDESystemHibernationMethod::TDESystemHibernationMethod m_hibernationMethod;
		unsigned long m_hibernationSpace;

	friend class TDEHardwareDevices;
};

namespace TDEEventDeviceType {
enum TDEEventDeviceType {
	Unknown,
	ACPILidSwitch,
	ACPISleepButton,
	ACPIPowerButton,
	Other = 0x80000000
};
};

// Keep friendlySwitchList() in tdehardwaredevices.cpp in sync with this enum
namespace TDESwitchType {
enum TDESwitchType {
	Null			= 0x00000000,
	Lid			= 0x00000001,
	TabletMode		= 0x00000002,
	HeadphoneInsert		= 0x00000004,
	RFKill			= 0x00000008,
	Radio			= 0x00000010,
	MicrophoneInsert	= 0x00000020,
	Dock			= 0x00000040,
	LineOutInsert		= 0x00000080,
	JackPhysicalInsert	= 0x00000100,
	VideoOutInsert		= 0x00000200,
	CameraLensCover		= 0x00000400,
	KeypadSlide		= 0x00000800,
	FrontProximity		= 0x00001000,
	RotateLock		= 0x00002000,
	LineInInsert		= 0x00004000
};

inline TDESwitchType operator|(TDESwitchType a, TDESwitchType b)
{
	return static_cast<TDESwitchType>(static_cast<int>(a) | static_cast<int>(b));
}

inline TDESwitchType operator&(TDESwitchType a, TDESwitchType b)
{
	return static_cast<TDESwitchType>(static_cast<int>(a) & static_cast<int>(b));
}

inline TDESwitchType operator~(TDESwitchType a)
{
	return static_cast<TDESwitchType>(~static_cast<int>(a));
}
};

class TQSocketNotifier;

class TDECORE_EXPORT TDEEventDevice : public TDEGenericDevice
{
	Q_OBJECT

	public:
		/**
		*  Constructor.
		*  @param Device type
		*/
		TDEEventDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn=TQString::null);
		
		/**
		* Destructor.
		*/
		~TDEEventDevice();

		/**
		* @return a TDEEventDeviceType::TDEEventDeviceType with the event device type, if known
		*/
		TDEEventDeviceType::TDEEventDeviceType eventType();

		/**
		* @return a TDESwitchType::TDESwitchType with all switches provided by this device
		*/
		TDESwitchType::TDESwitchType providedSwitches();

		/**
		* @return a TDESwitchType::TDESwitchType with all active switches provided by this device
		*/
		TDESwitchType::TDESwitchType activeSwitches();

		/**
		* @param switches a TDESwitchType::TDESwitchType with any switch flags set
		* @return a TQStringList with friendly names for all set switch flags
		*/
		static TQStringList friendlySwitchList(TDESwitchType::TDESwitchType switches);

	protected:
		/**
		* @param et a TDEEventDeviceType::TDEEventDeviceType with the event device type, if known
		* @internal
		*/
		void internalSetEventType(TDEEventDeviceType::TDEEventDeviceType et);

		/**
		* @param sl a TDESwitchType::TDESwitchType with all switches provided by this device
		* @internal
		*/
		void internalSetProvidedSwitches(TDESwitchType::TDESwitchType sl);

		/**
		* @param sl a TDESwitchType::TDESwitchType with all active switches provided by this device
		* @internal
		*/
		void internalSetActiveSwitches(TDESwitchType::TDESwitchType sl);

		/**
		* @param hwmanager the master hardware manager
		* @internal
		*/
		void internalStartFdMonitoring(TDEHardwareDevices* hwmanager);

	protected slots:
		void eventReceived();

	signals:
		/**
		* @param keycode the code of the key that was pressed/released
		* See include/linux/input.h for a complete list of keycodes
		* @param device a TDEEventDevice* with the device that received the event
		*/
		void keyPressed(unsigned int keycode, TDEEventDevice* device);

	private:
		TDEEventDeviceType::TDEEventDeviceType m_eventType;
		TDESwitchType::TDESwitchType m_providedSwitches;
		TDESwitchType::TDESwitchType m_switchActive;

		int m_fd;
		bool m_fdMonitorActive;
		TQSocketNotifier* m_eventNotifier;

	friend class TDEHardwareDevices;
};

namespace TDEInputDeviceType {
enum TDEInputDeviceType {
	Unknown,
	ACPILidSwitch,
	ACPISleepButton,
	ACPIPowerButton,
	Other = 0x80000000
};
};

class TDECORE_EXPORT TDEInputDevice : public TDEGenericDevice
{
	public:
		/**
		*  Constructor.
		*  @param Device type
		*/
		TDEInputDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn=TQString::null);
		
		/**
		* Destructor.
		*/
		~TDEInputDevice();

		/**
		* @return a TDEInputDeviceType::TDEInputDeviceType with the input device type, if known
		*/
		TDEInputDeviceType::TDEInputDeviceType inputType();

	protected:
		/**
		* @param it a TDEInputDeviceType::TDEInputDeviceType with the input device type, if known
		* @internal
		*/
		void internalSetInputType(TDEInputDeviceType::TDEInputDeviceType it);

	private:
		TDEInputDeviceType::TDEInputDeviceType m_inputType;

	friend class TDEHardwareDevices;
};

typedef TQPtrList<TDEGenericDevice> TDEGenericHardwareList;
typedef TQMap<TQString, TQString> TDEDeviceIDMap;

class KSimpleDirWatch;

class TDECORE_EXPORT TDEHardwareDevices : public TQObject
{
	Q_OBJECT

	public:	
		/**
		*  Constructor.
		*/
		TDEHardwareDevices();
		
		/**
		* Destructor.
		*/
		~TDEHardwareDevices();

		/**
		*  Query all hardware capabilities on all devices
		*  This does not normally need to be called by an application, as
		*  device detection is handled internally and automatically
		*  
		*  A call to this method immediately invalidates any TDEGenericHardwareList
		*  structures returned by listAllPhysicalDevices()
		*  
		*  @return TRUE if successful
		*/
		bool queryHardwareInformation();

		/**
		*  List all hardware capabilities on all devices
		*  @return TDEGenericHardwareList containing all known hardware devices
		*/
		TDEGenericHardwareList listAllPhysicalDevices();

		/**
		*  List all hardware capabilities on all devices
		*  @param a TDEGenericDeviceType::TDEGenericDeviceType specifying the device class
		*  @return TDEGenericHardwareList containing all known hardware devices
		*/
		TDEGenericHardwareList listByDeviceClass(TDEGenericDeviceType::TDEGenericDeviceType cl);

		/**
		*  Return the device with system path @arg syspath, or 0 if no device exists for that path
		*  @return TDEGenericDevice
		*/
		TDEGenericDevice* findBySystemPath(TQString syspath);

		/**
		*  Return the device with unique ID @arg uid, or 0 if no device exists for that uid
		*  @return TDEGenericDevice
		*/
		TDEGenericDevice* findByUniqueID(TQString uid);

		/**
		*  Return the device with device node @arg devnode, or 0 if no device exists at that node
		*  @return TDEGenericDevice
		*/
		TDEGenericDevice* findByDeviceNode(TQString devnode);

		/**
		*  Return the storage device with unique ID @arg uid, or 0 if no device exists for that uid
		*  @return TDEGenericDevice
		*/
		TDEStorageDevice* findDiskByUID(TQString uid);

		/**
		*  Look up the device in the system PCI database
		*  @param vendorid a TQString containing the vendor ID in hexadecimal
		*  @param modelid a TQString containing the model ID in hexadecimal
		*  @param subvendorid a TQString containing the subvendor ID in hexadecimal
		*  @param submodelid a TQString containing the submodel ID in hexadecimal
		*  @return a TQString containing the device name, if found
		*/
		TQString findPCIDeviceName(TQString vendorid, TQString modelid, TQString subvendorid, TQString submodelid);

		/**
		*  Look up the device in the system USB database
		*  @param vendorid a TQString containing the vendor ID in hexadecimal
		*  @param modelid a TQString containing the model ID in hexadecimal
		*  @param subvendorid a TQString containing the subvendor ID in hexadecimal
		*  @param submodelid a TQString containing the submodel ID in hexadecimal
		*  @return a TQString containing the device name, if found
		*/
		TQString findUSBDeviceName(TQString vendorid, TQString modelid, TQString subvendorid, TQString submodelid);

		/**
		*  Look up the device in the system PNP database
		*  @param pnpid a TQString containing the PNP ID
		*  @return a TQString containing the device name, if found
		*/
		TQString findPNPDeviceName(TQString pnpid);

		/**
		*  Look up the monitor manufacturer in the system display database
		*  @param pnpid a TQString containing the display manufacturer ID
		*  @return a TQString containing the manufacturer name, if found
		*/
		TQString findMonitorManufacturerName(TQString dpyid);

		/**
		*  Get a friendly string describing a device type
		*  @param query a TDEGenericDeviceType::TDEGenericDeviceType specifying a device type
		*  @return a TQString containing the friendly type name
		*/
		TQString getFriendlyDeviceTypeStringFromType(TDEGenericDeviceType::TDEGenericDeviceType query);

		/**
		*  Get an icon for a device type
		*  @param query a TDEGenericDeviceType::TDEGenericDeviceType specifying a device type
		*  @param size a TDEIcon::StdSizes structure specifying the desired icon size
		*  @return a TQPixmap containing the icon for the specified type
		*/
		TQPixmap getDeviceTypeIconFromType(TDEGenericDeviceType::TDEGenericDeviceType query, TDEIcon::StdSizes size);

		/**
		*  Convenience function to obtain the root system device
		*  @return a pointer to a TDERootSystemDevice object
		*/
		TDERootSystemDevice* rootSystemDevice();

		/**
		*  Rescan a hardware device to look for changes
		*  WARNING: This method can be very expensive.  Use with caution!
		*  @param hwdevice TDEGenericDevice* with the device to rescan
		*/
		void rescanDeviceInformation(TDEGenericDevice* hwdevice);

		/**
		*  Rescan a hardware device to look for changes
		*  WARNING: This method can be very expensive.  Use with caution!
		*  The computational expense can be reduced somewhat if the device tree structure
		*  has not changed by calling this method with regenerateDeviceTree = FALSE.
		*  @param hwdevice TDEGenericDevice* with the device to rescan
		*  @param regenerateDeviceTree TRUE to update parent/child links in device tree
		*/
		void rescanDeviceInformation(TDEGenericDevice* hwdevice, bool regenerateDeviceTree);

		/**
		*  Enable or disable automatic state updates of triggerless hardware devices
		*  such as CPUs and network cards.  When enabled, your application will use
		*  additional CPU resources to continually poll triggerless hardware devices.
		*  Automatic updates are disabled by default.
		*  @param enable a bool specifiying whether or not automatic updates should be enabled
		*/
		void setTriggerlessHardwareUpdatesEnabled(bool enable);

		/**
		*  Convert a byte count to human readable form
		*  @param bytes a double containing the number of bytes
		*  @return a TQString containing the human readable byte count
		*/
		static TQString bytesToFriendlySizeString(double bytes);

	signals:
		void hardwareAdded(TDEGenericDevice*);
		void hardwareRemoved(TDEGenericDevice*);
		void hardwareUpdated(TDEGenericDevice*);
		void mountTableModified();
		void hardwareEvent(TDEHardwareEvent::TDEHardwareEvent, TQString uuid);

		/**
		* @param keycode the code of the key that was pressed/released
		* See include/linux/input.h for a complete list of keycodes
		* @param device a TDEEventDevice* with the device that received the event
		*/
		void eventDeviceKeyPressed(unsigned int keycode, TDEEventDevice* device);

	private slots:
		void processHotPluggedHardware();
		void processModifiedMounts();
		void processModifiedCPUs();
		void processStatelessDevices();
		void processEventDeviceKeyPressed(unsigned int keycode, TDEEventDevice* edevice);

	private:
		void updateBlacklists(TDEGenericDevice* hwdevice, udev_device* dev);

	private:
		TDEGenericDevice *classifyUnknownDevice(udev_device* dev, TDEGenericDevice* existingdevice=0, bool force_full_classification=true);
		TDEGenericDevice *classifyUnknownDeviceByExternalRules(udev_device* dev, TDEGenericDevice* existingdevice=0, bool classifySubDevices=false);
		void updateExistingDeviceInformation(TDEGenericDevice* existingdevice, udev_device* dev=NULL);

		void updateParentDeviceInformation();
		void updateParentDeviceInformation(TDEGenericDevice* hwdevice);

		void addCoreSystemDevices();

		/**
		* Get the binary monitor EDID for the specified sysfs path
		* @return a TQByteArray containing the EDID
		*/
		TQByteArray getEDID(TQString path);
		
		/**
		* Get the monitor EDID name for the specified sysfs path
		* @return a TQPair<TQString,TQString> containing the monitor vendor and model, if available
		*/
		TQPair<TQString,TQString> getEDIDMonitorName(TQString path);

		struct udev *m_udevStruct;
		struct udev_monitor *m_udevMonitorStruct;
		TDEGenericHardwareList m_deviceList;
		int m_procMountsFd;
		KSimpleDirWatch* m_cpuWatch;
		TQTimer* m_cpuWatchTimer;
		TQTimer* m_deviceWatchTimer;

		TQSocketNotifier* m_devScanNotifier;
		TQSocketNotifier* m_mountScanNotifier;

		TQStringList m_mountTable;
		TQStringList m_cpuInfo;

		TDEDeviceIDMap* pci_id_map;
		TDEDeviceIDMap* usb_id_map;
		TDEDeviceIDMap* pnp_id_map;
		TDEDeviceIDMap* dpy_id_map;

	friend class TDEGenericDevice;
	friend class TDEStorageDevice;
	friend class TDECPUDevice;
};

#endif // _TDEHARDWAREDEVICES_H