Small bug fix for iPAQ only: screensaver "dim" didn't work anymore -

the backlight was already powered off at level 0

1 files changed, 2 insertions, 1 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index c84312e..75426f9 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -1,918 +1,919 @@
 /*  This file is part of the OPIE libraries
     Copyright (C) 2002 Robert Griebl (sandman@handhelds.org)
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     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., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
 */
 
 #include <stdlib.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
 #include <signal.h>
 #include <sys/time.h>
 #include <linux/soundcard.h>
 #include <math.h>
 
 #include <qapplication.h>
 
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qpe/sound.h>
 #include <qpe/resource.h>
 #include <qpe/config.h>
 
 #include "odevice.h"
 
 #include <qwindowsystem_qws.h>
 
 
 // _IO and friends are only defined in kernel headers ...
 
 #define OD_IOC(dir,type,number,size)    (( dir << 30 ) | ( type << 8 ) | ( number ) | ( size << 16 ))
 
 #define OD_IO(type,number)              OD_IOC(0,type,number,0)
 #define OD_IOW(type,number,size)        OD_IOC(1,type,number,sizeof(size))
 #define OD_IOR(type,number,size)        OD_IOC(2,type,number,sizeof(size))
 #define OD_IORW(type,number,size)       OD_IOC(3,type,number,sizeof(size))
 
 using namespace Opie;
 
 class ODeviceData {
 public:
 	bool m_qwsserver;
 
 	QString m_vendorstr;
 	OVendor m_vendor;
 	
 	QString m_modelstr;
 	OModel m_model;
 
 	QString m_systemstr;
 	OSystem m_system;
 	
 	QString m_sysverstr;
 };
 
 
 class iPAQ : public QObject, public ODevice, public QWSServer::KeyboardFilter {
 protected: 
 	virtual void init ( );
 	
 public:
 	virtual bool setSoftSuspend ( bool soft );
 
 	virtual bool setDisplayBrightness ( int b );
 	virtual int displayBrightnessResolution ( ) const;
 
 	virtual void alarmSound ( );
 	
     virtual QValueList <OLed> ledList ( ) const;
 	virtual QValueList <OLedState> ledStateList ( OLed led ) const;
 	virtual OLedState ledState ( OLed led ) const;
 	virtual bool setLedState ( OLed led, OLedState st );
 	
 	//virtual QValueList <int> keyList ( ) const;
 	
 protected:
 	virtual bool filter ( int unicode, int keycode, int modifiers, bool isPress, bool autoRepeat );
 	virtual void timerEvent ( QTimerEvent *te );
 	
 	int m_power_timer;
 	
 	OLedState m_leds [2];
 };
 
 class Zaurus : public ODevice {
 protected:
 	virtual void init ( );
 
 public:	
 	virtual bool setSoftSuspend ( bool soft );
 
 	virtual bool setDisplayBrightness ( int b );
 	virtual int displayBrightnessResolution ( ) const;
 
 	virtual void alarmSound ( );
 	virtual void keySound ( );
 	virtual void touchSound ( );	
 
     virtual QValueList <OLed> ledList ( ) const;
 	virtual QValueList <OLedState> ledStateList ( OLed led ) const;
 	virtual OLedState ledState ( OLed led ) const;
 	virtual bool setLedState ( OLed led, OLedState st );
 	
 	//virtual QValueList <int> keyList ( ) const;
 	
 protected:
 	virtual void buzzer ( int snd );
 	
 	OLedState m_leds [1];
 };
 
 
 
 
 
 
 
 ODevice *ODevice::inst ( )
 {
 	static ODevice *dev = 0;
 	
 	if ( !dev ) {
 		if ( QFile::exists ( "/proc/hal/model" ))
 			dev = new iPAQ ( );
 		else if ( QFile::exists ( "/dev/sharp_buz" ) || QFile::exists ( "/dev/sharp_led" ))
 			dev = new Zaurus ( );
 		else
 			dev = new ODevice ( );
 			
 		dev-> init ( );
 	}
 	return dev;
 }
 
 
 /**************************************************
  *
  * common
  *
  **************************************************/
 
 
 ODevice::ODevice ( )
 {
 	d = new ODeviceData;
 
 	d-> m_qwsserver = qApp ? ( qApp-> type ( ) == QApplication::GuiServer ) : false;
 
 	d-> m_modelstr = "Unknown";
 	d-> m_model = Model_Unknown;
 	d-> m_vendorstr = "Unkown";
 	d-> m_vendor = Vendor_Unknown;
 	d-> m_systemstr = "Unkown";
 	d-> m_system = System_Unknown;
 	d-> m_sysverstr = "0.0";
 }
 
 void ODevice::init ( )
 {
 }
 
 ODevice::~ODevice ( )
 {
 	delete d;
 }
 
 bool ODevice::setSoftSuspend ( bool /*soft*/ )
 {
 	return false;
 }
 
 //#include <linux/apm_bios.h>
 
 #define APM_IOC_SUSPEND          OD_IO( 'A', 2 )
 
 
 bool ODevice::suspend ( )
 {
 	if ( !d-> m_qwsserver ) // only qwsserver is allowed to suspend
 		return false;
 
 	if ( d-> m_model == Model_Unknown ) // better don't suspend in qvfb / on unkown devices
 		return false;
 
 	int fd;
 	bool res = false;
 	
 	if ((( fd = ::open ( "/dev/apm_bios", O_RDWR )) >= 0 ) ||
 	    (( fd = ::open ( "/dev/misc/apm_bios",O_RDWR )) >= 0 )) {	
 		struct timeval tvs, tvn;
 
 //		::signal ( SIGTSTP, SIG_IGN );	// we don't want to be stopped
 		::gettimeofday ( &tvs, 0 );
 	
 		::sync ( ); // flush fs caches
 	
 		res = ( ::ioctl ( fd, APM_IOC_SUSPEND, 0 ) == 0 ); // tell the kernel to "start" suspending
 		::close ( fd );
 
 		if ( res ) {	
 //			::kill ( -::getpid ( ), SIGTSTP ); // stop everthing in our process group
 
 			do { // wait at most 1.5 sec: either suspend didn't work or the device resumed
 				::usleep ( 200 * 1000 );
 				::gettimeofday ( &tvn, 0 );				
 			} while ((( tvn. tv_sec - tvs. tv_sec ) * 1000 + ( tvn. tv_usec - tvs. tv_usec ) / 1000 ) < 1500 );
 			
 //			::kill ( -::getpid ( ), SIGCONT ); // continue everything in our process group
 		}	
 		
 //		::signal ( SIGTSTP, SIG_DFL );
 	}
 	
 	return res;
 }
 
 //#include <linux/fb.h> better not rely on kernel headers in userspace ...
 
 #define FBIOBLANK             OD_IO( 'F', 0x11 ) // 0x4611
 
 /* VESA Blanking Levels */
 #define VESA_NO_BLANKING      0
 #define VESA_VSYNC_SUSPEND    1
 #define VESA_HSYNC_SUSPEND    2
 #define VESA_POWERDOWN        3
 
 
 bool ODevice::setDisplayStatus ( bool on )
 {
 	if ( d-> m_model == Model_Unknown )
 		return false;
 
 	bool res = false;
 	int fd;
 	
 	if (( fd = ::open ( "/dev/fb0", O_RDWR )) >= 0 ) {
 		res = ( ::ioctl ( fd, FBIOBLANK, on ? VESA_NO_BLANKING : VESA_POWERDOWN ) == 0 );
 		::close ( fd );
 	}	                                                                                       
 	return res;
 }
 
 bool ODevice::setDisplayBrightness ( int )
 {
 	return false;
 }
 
 int ODevice::displayBrightnessResolution ( ) const
 {
 	return 16;
 }
 
 QString ODevice::vendorString ( ) const
 {
 	return d-> m_vendorstr;
 }
 
 OVendor ODevice::vendor ( ) const
 {
 	return d-> m_vendor;
 }
 
 QString ODevice::modelString ( ) const
 {
 	return d-> m_modelstr;
 }
 
 OModel ODevice::model ( ) const
 {
 	return d-> m_model;
 }
 
 QString ODevice::systemString ( ) const
 {
 	return d-> m_systemstr;
 }
 
 OSystem ODevice::system ( ) const
 {
 	return d-> m_system;
 }
 
 QString ODevice::systemVersionString ( ) const
 {
 	return d-> m_sysverstr;
 }
 
 void ODevice::alarmSound ( )
 {
 #ifndef QT_QWS_EBX
 #ifndef QT_NO_SOUND
 	static Sound snd ( "alarm" );
 
 	if ( snd. isFinished ( ))
 		snd. play ( );
 #endif
 #endif
 }
 
 void ODevice::keySound ( )
 {
 #ifndef QT_QWS_EBX
 #ifndef QT_NO_SOUND
 	static Sound snd ( "keysound" );
 
 	if ( snd. isFinished ( ))
 		snd. play ( );
 #endif
 #endif
 }
 
 void ODevice::touchSound ( )
 {
 
 #ifndef QT_QWS_EBX
 #ifndef QT_NO_SOUND
 	static Sound snd ( "touchsound" );
 
 	if ( snd. isFinished ( ))
 		snd. play ( );
 #endif
 #endif
 }
 
 
 QValueList <OLed> ODevice::ledList ( ) const
 {
 	return QValueList <OLed> ( );
 }
 
 QValueList <OLedState> ODevice::ledStateList ( OLed /*which*/ ) const
 {
 	return QValueList <OLedState> ( );
 }
 
 OLedState ODevice::ledState ( OLed /*which*/ ) const
 {
 	return Led_Off;
 }
 
 bool ODevice::setLedState ( OLed /*which*/, OLedState /*st*/ )
 {
 	return false;
 }
 
 
 
 //QValueList <int> ODevice::keyList ( ) const
 //{
 //	return QValueList <int> ( );
 //}
 
 
 
 /**************************************************
  *
  * iPAQ
  *
  **************************************************/
 
 void iPAQ::init ( )
 {
 	d-> m_vendorstr = "HP";
 	d-> m_vendor = Vendor_HP;
 
 	QFile f ( "/proc/hal/model" );
 
 	if ( f. open ( IO_ReadOnly )) {
 		QTextStream ts ( &f );
 
 		d-> m_modelstr = "H" + ts. readLine ( );
 
 		if ( d-> m_modelstr == "H3100" )
 			d-> m_model = Model_iPAQ_H31xx;
 		else if ( d-> m_modelstr == "H3600" )
 			d-> m_model = Model_iPAQ_H36xx;
 		else if ( d-> m_modelstr == "H3700" )
 			d-> m_model = Model_iPAQ_H37xx;
 		else if ( d-> m_modelstr == "H3800" )
 			d-> m_model = Model_iPAQ_H38xx;
 		else
 			d-> m_model = Model_Unknown;
 
 		f. close ( );
 	}
 
 	f. setName ( "/etc/familiar-version" );
 	if ( f. open ( IO_ReadOnly )) { 
 		d-> m_systemstr = "Familiar";
 		d-> m_system = System_Familiar;
 		
 		QTextStream ts ( &f );
 		d-> m_sysverstr = ts. readLine ( ). mid ( 10 );
 		
 		f. close ( );
 	}
 
 	m_leds [0] = m_leds [1] = Led_Off;
 	
 	m_power_timer = 0;
 	
 	if ( d-> m_qwsserver )
 		QWSServer::setKeyboardFilter ( this );	
 }
 
 //#include <linux/h3600_ts.h>  // including kernel headers is evil ...
 
 typedef struct {
   unsigned char OffOnBlink;       /* 0=off 1=on 2=Blink */
   unsigned char TotalTime;        /* Units of 5 seconds */
   unsigned char OnTime;           /* units of 100m/s */
   unsigned char OffTime;          /* units of 100m/s */
 } LED_IN;
 
 typedef struct {
 	unsigned char mode;
 	unsigned char pwr;
 	unsigned char brightness;
 } FLITE_IN;
 
 #define LED_ON    OD_IOW( 'f', 5, LED_IN )
 #define FLITE_ON  OD_IOW( 'f', 7, FLITE_IN )
 
 
 
 QValueList <OLed> iPAQ::ledList ( ) const
 {
 	QValueList <OLed> vl;
 	vl << Led_Power;
 
 	if ( d-> m_model == Model_iPAQ_H38xx )
 		vl << Led_BlueTooth;
 	return vl;
 }
 
 QValueList <OLedState> iPAQ::ledStateList ( OLed l ) const
 {
 	QValueList <OLedState> vl;
 
 	if ( l == Led_Power )
 		vl << Led_Off << Led_On << Led_BlinkSlow << Led_BlinkFast;
 	else if ( l == Led_BlueTooth && d-> m_model == Model_iPAQ_H38xx )
 		vl << Led_Off; // << Led_On << ???
 		
 	return vl;
 }
 
 OLedState iPAQ::ledState ( OLed l ) const
 {	
 	switch ( l ) {
 		case Led_Power:
 			return m_leds [0];
 		case Led_BlueTooth:
 			return m_leds [1];
 		default:
 			return Led_Off;
 	}
 }
 
 bool iPAQ::setLedState ( OLed l, OLedState st ) 
 {
 	static int fd = ::open ( "/dev/touchscreen/0", O_RDWR | O_NONBLOCK );
 
 	if ( l == Led_Power ) {
 		if ( fd >= 0 ) {
 			LED_IN leds;
 			::memset ( &leds, 0, sizeof( leds ));
 			leds. TotalTime  = 0;
 			leds. OnTime     = 0;
 			leds. OffTime    = 1;
 			leds. OffOnBlink = 2;
 
 			switch ( st ) {
 				case Led_Off      : leds. OffOnBlink = 0; break;
 				case Led_On       : leds. OffOnBlink = 1; break;
 				case Led_BlinkSlow: leds. OnTime = 10; leds. OffTime = 10; break;
 				case Led_BlinkFast: leds. OnTime =  5; leds. OffTime =  5; break;
 			}
 
 			if ( ::ioctl ( fd, LED_ON, &leds ) >= 0 ) {
 				m_leds [0] = st;
 				return true;
 			}
 		}
 	}
 	return false;
 }
 
 
 //QValueList <int> iPAQ::keyList ( ) const
 //{
 //	QValueList <int> vl;
 //	vl << HardKey_Datebook << HardKey_Contacts << ( model ( ) == Model_iPAQ_H38xx ? HardKey_Mail : HardKey_Menu ) << HardKey_Home << HardKey_Record << HardKey_Suspend << HardKey_Backlight;
 //	return vl;
 //}
 
 bool iPAQ::filter ( int /*unicode*/, int keycode, int modifiers, bool isPress, bool autoRepeat )
 {
 	int newkeycode = keycode;
 
 	
 	// simple susbstitutions
 	switch ( d-> m_model ) {
 		case Model_iPAQ_H38xx:
 			// H38xx has no "Q" key anymore - this is now the Mail key
 			if ( keycode == HardKey_Menu )
 				newkeycode = HardKey_Mail;
 			//nobreak
 						
 		case Model_iPAQ_H31xx: 
 			// Rotate cursor keys 180°
 			switch ( keycode ) {
 				case Key_Left : newkeycode = Key_Right; break;
 				case Key_Right: newkeycode = Key_Left; break;
 				case Key_Up   : newkeycode = Key_Down; break;
 				case Key_Down : newkeycode = Key_Up; break;
 			}
 			break;
 
 		case Model_iPAQ_H36xx: 
 		case Model_iPAQ_H37xx: 
 			// map Power Button short/long press to F34/F35
 			if ( keycode == Key_SysReq ) {
 				if ( isPress ) {
 					if ( m_power_timer )
 						killTimer ( m_power_timer );
 					m_power_timer = startTimer ( 500 );
 				}
 				else if ( m_power_timer ) {
 					killTimer ( m_power_timer );
 					m_power_timer = 0;
 					QWSServer::sendKeyEvent ( -1, HardKey_Suspend, 0, true, false );
 					QWSServer::sendKeyEvent ( -1, HardKey_Suspend, 0, false, false );
 				}
 				newkeycode = Key_unknown;			
 			}
 			break;
 		
 		default: 
 			break;
 	}				
 
 	if ( newkeycode != keycode ) {
 		if ( newkeycode != Key_unknown )
 			QWSServer::sendKeyEvent ( -1, newkeycode, modifiers, isPress, autoRepeat );
 		return true;
 	}
 	else
 		return false;
 }
 
 void iPAQ::timerEvent ( QTimerEvent * )
 {
 	killTimer ( m_power_timer );
 	m_power_timer = 0;
 	QWSServer::sendKeyEvent ( -1, HardKey_Backlight, 0, true, false );
 	QWSServer::sendKeyEvent ( -1, HardKey_Backlight, 0, false, false );
 }
 
 
 void iPAQ::alarmSound ( )
 {
 #if defined( QT_QWS_IPAQ ) // IPAQ
 #ifndef QT_NO_SOUND
 	static Sound snd ( "alarm" );
 	int fd;
 	int vol;
 	bool vol_reset = false;
 
 	if ((( fd = ::open ( "/dev/sound/mixer", O_RDWR )) >= 0 ) ||
 	    (( fd = ::open ( "/dev/mixer", O_RDWR )) >= 0 )) {
 
 		if ( ::ioctl ( fd, MIXER_READ( 0 ), &vol ) >= 0 ) {
 			Config cfg ( "qpe" );
 			cfg. setGroup ( "Volume" );
 
  			int volalarm = cfg. readNumEntry ( "AlarmPercent", 50 );
 			if ( volalarm < 0 )
 				volalarm = 0;
 			else if ( volalarm > 100 )
 				volalarm = 100;
 			volalarm |= ( volalarm << 8 );
 
 			if (( volalarm & 0xff ) > ( vol & 0xff )) {
 				if ( ::ioctl ( fd, MIXER_WRITE( 0 ), &volalarm ) >= 0 )
 					vol_reset = true;
 			}
 		}
 	}
 
 	snd. play ( );
 	while ( !snd. isFinished ( ))
 		qApp-> processEvents ( );
 
 	if ( fd >= 0 ) {
 		if ( vol_reset )
 			::ioctl ( fd, MIXER_WRITE( 0 ), &vol );
 		::close ( fd );
 	}
 #endif
 #endif
 }
 
 
 bool iPAQ::setSoftSuspend ( bool soft )
 {
 	bool res = false;
 	int fd;
 	
 	if (( fd = ::open ( "/proc/sys/ts/suspend_button_mode", O_WRONLY )) >= 0 ) {
 		if ( ::write ( fd, soft ? "1" : "0", 1 ) == 1 )
 			res = true;
 		else
 			::perror ( "write to /proc/sys/ts/suspend_button_mode" );
 		
 		::close ( fd );
 	}
 	else
 		::perror ( "/proc/sys/ts/suspend_button_mode" );
 	
 	return res;
 }
 
 
 bool iPAQ::setDisplayBrightness ( int bright )
 {
 	bool res = false;
 	int fd;
 	
 	if ( bright > 255 )
 		bright = 255;
 	if ( bright < 0 )
 		bright = 0;
 
 	// 128 is the maximum if you want a decent lifetime for the LCD
 	
-	bright = (int) (( ::pow ( 2, double( bright ) / 255.0 ) - 1 ) * 128.0 ); // logarithmic
+	if ( bright > 1 ) 
+		bright = (int) ( 0.5 + ( ::pow ( 2, double( bright ) / 255.0 ) - 1 ) * 128.0 ); // logarithmic
 //	bright = ( bright + 1 ) / 2;
 	
 	if ((( fd = ::open ( "/dev/ts", O_WRONLY )) >= 0 ) ||
 	    (( fd = ::open ( "/dev/h3600_ts", O_WRONLY )) >= 0 )) {
 		FLITE_IN bl;
 		bl. mode = 1;
 		bl. pwr = bright ? 1 : 0;
 		bl. brightness = bright;
 		res = ( ::ioctl ( fd, FLITE_ON, &bl ) == 0 );
 		::close ( fd );
 	}
 	return res;
 }
 
 int iPAQ::displayBrightnessResolution ( ) const
 {
 	return 255; // really 128, but logarithmic control is smoother this way
 }
 
 
 /**************************************************
  *
  * Zaurus
  *
  **************************************************/
 
 
 
 void Zaurus::init ( )
 {
 	d-> m_modelstr = "Zaurus SL5000";
 	d-> m_model = Model_Zaurus_SL5000;
 	d-> m_vendorstr = "Sharp";
 	d-> m_vendor = Vendor_Sharp;
 
 	QFile f ( "/proc/filesystems" );
 
 	if ( f. open ( IO_ReadOnly ) && ( QTextStream ( &f ). read ( ). find ( "\tjffs2\n" ) >= 0 )) {
 		d-> m_systemstr = "OpenZaurus";
 		d-> m_system = System_OpenZaurus;
 
 		f. close ( );
 
 		f. setName ( "/etc/oz_version" );
 		if ( f. open ( IO_ReadOnly )) { 
 			QTextStream ts ( &f );
 			d-> m_sysverstr = ts. readLine ( ). mid ( 10 );
 			f. close ( );
 		}
 	}
 	else {
 		d-> m_systemstr = "Zaurus";
 		d-> m_system = System_Zaurus;
 	}
 
 
 	m_leds [0] = Led_Off;
 }
 
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
 
 //#include <asm/sharp_char.h> // including kernel headers is evil ...
 
 #define SHARP_DEV_IOCTL_COMMAND_START 0x5680
 
 #define	SHARP_BUZZER_IOCTL_START (SHARP_DEV_IOCTL_COMMAND_START)
 #define SHARP_BUZZER_MAKESOUND   (SHARP_BUZZER_IOCTL_START)
 
 #define SHARP_BUZ_TOUCHSOUND       1  /* touch panel sound */
 #define SHARP_BUZ_KEYSOUND         2  /* key sound */
 #define SHARP_BUZ_SCHEDULE_ALARM  11  /* schedule alarm */
 
 /* --- for SHARP_BUZZER device --- */
 
 //#define	SHARP_BUZZER_IOCTL_START (SHARP_DEV_IOCTL_COMMAND_START)
 //#define SHARP_BUZZER_MAKESOUND   (SHARP_BUZZER_IOCTL_START)
 
 #define SHARP_BUZZER_SETVOLUME   (SHARP_BUZZER_IOCTL_START+1)
 #define SHARP_BUZZER_GETVOLUME   (SHARP_BUZZER_IOCTL_START+2)
 #define SHARP_BUZZER_ISSUPPORTED (SHARP_BUZZER_IOCTL_START+3)
 #define SHARP_BUZZER_SETMUTE     (SHARP_BUZZER_IOCTL_START+4)
 #define SHARP_BUZZER_STOPSOUND   (SHARP_BUZZER_IOCTL_START+5)
 
 //#define SHARP_BUZ_TOUCHSOUND       1  /* touch panel sound */
 //#define SHARP_BUZ_KEYSOUND         2  /* key sound */
 
 //#define SHARP_PDA_ILLCLICKSOUND    3  /* illegal click */
 //#define SHARP_PDA_WARNSOUND        4  /* warning occurred */
 //#define SHARP_PDA_ERRORSOUND       5  /* error occurred */
 //#define SHARP_PDA_CRITICALSOUND    6  /* critical error occurred */
 //#define SHARP_PDA_SYSSTARTSOUND    7  /* system start */
 //#define SHARP_PDA_SYSTEMENDSOUND   8  /* system shutdown */
 //#define SHARP_PDA_APPSTART         9  /* application start */
 //#define SHARP_PDA_APPQUIT         10  /* application ends */
 
 //#define SHARP_BUZ_SCHEDULE_ALARM  11  /* schedule alarm */
 //#define SHARP_BUZ_DAILY_ALARM     12  /* daily alarm */
 //#define SHARP_BUZ_GOT_PHONE_CALL  13  /* phone call sound */
 //#define SHARP_BUZ_GOT_MAIL        14  /* mail sound */
 //
 
 #define	SHARP_LED_IOCTL_START (SHARP_DEV_IOCTL_COMMAND_START)
 #define SHARP_LED_SETSTATUS   (SHARP_LED_IOCTL_START+1)
 
 typedef struct sharp_led_status {
   int which;   /* select which LED status is wanted. */
   int status;  /* set new led status if you call SHARP_LED_SETSTATUS */
 } sharp_led_status;
 
 #define SHARP_LED_MAIL_EXISTS  9       /* mail status (exists or not) */
 
 #define LED_MAIL_NO_UNREAD_MAIL  0   /* for SHARP_LED_MAIL_EXISTS */
 #define LED_MAIL_NEWMAIL_EXISTS  1   /* for SHARP_LED_MAIL_EXISTS */
 #define LED_MAIL_UNREAD_MAIL_EX  2   /* for SHARP_LED_MAIL_EXISTS */
 
 // #include <asm/sharp_apm.h> // including kernel headers is evil ...
 
 #define APM_IOCGEVTSRC          OD_IOR( 'A', 203, int )
 #define APM_IOCSEVTSRC          OD_IORW( 'A', 204, int )
 #define APM_EVT_POWER_BUTTON    (1 << 0)
 
 #define FL_IOCTL_STEP_CONTRAST    100
 
 
 void Zaurus::buzzer ( int sound )
 {
 	static int fd = ::open ( "/dev/sharp_buz", O_RDWR|O_NONBLOCK );
   
 	if ( fd >= 0 )
 		::ioctl ( fd, SHARP_BUZZER_MAKESOUND, sound );
 }
 
 
 void Zaurus::alarmSound ( ) 
 {
 	buzzer ( SHARP_BUZ_SCHEDULE_ALARM );
 }
 
 void Zaurus::touchSound ( ) 
 {
 	buzzer ( SHARP_BUZ_TOUCHSOUND );
 }
 
 void Zaurus::keySound ( ) 
 {
 	buzzer ( SHARP_BUZ_KEYSOUND );
 }
 
 
 QValueList <OLed> Zaurus::ledList ( ) const
 {
 	QValueList <OLed> vl;
 	vl << Led_Mail;
 	return vl;
 }
 
 QValueList <OLedState> Zaurus::ledStateList ( OLed l ) const
 {
 	QValueList <OLedState> vl;
 	
 	if ( l == Led_Mail )
 		vl << Led_Off << Led_On << Led_BlinkSlow;
 	return vl;
 }
 
 OLedState Zaurus::ledState ( OLed which ) const
 {
 	if ( which == Led_Mail )
 		return m_leds [0];
 	else	
 		return Led_Off;
 }
 
 bool Zaurus::setLedState ( OLed which, OLedState st )
 {
 	static int fd = ::open ( "/dev/sharp_led", O_RDWR|O_NONBLOCK ); 
 
 	if ( which == Led_Mail ) {
 		if ( fd >= 0 ) {
 			struct sharp_led_status leds;
 			::memset ( &leds, 0, sizeof( leds ));
 			leds. which = SHARP_LED_MAIL_EXISTS;
 			bool ok = true;
 			
 			switch ( st ) {
 				case Led_Off      : leds. status = LED_MAIL_NO_UNREAD_MAIL; break;
 				case Led_On       : leds. status = LED_MAIL_NEWMAIL_EXISTS; break;
 				case Led_BlinkSlow: leds. status = LED_MAIL_UNREAD_MAIL_EX; break;
 				default            : ok = false;
 			}
 		
 			if ( ok && ( ::ioctl ( fd, SHARP_LED_SETSTATUS, &leds ) >= 0 )) {
 				m_leds [0] = st;
 				return true;
 			}
 		}		
 	}
 	return false;
 }
 
 bool Zaurus::setSoftSuspend ( bool soft )
 {
 	bool res = false;
 	int fd;
 
 	if ((( fd = ::open ( "/dev/apm_bios", O_RDWR )) >= 0 ) ||
         (( fd = ::open ( "/dev/misc/apm_bios",O_RDWR )) >= 0 )) {
 
 		int sources = ::ioctl ( fd, APM_IOCGEVTSRC, 0 ); // get current event sources
 
 		if ( sources >= 0 ) {
 			if ( soft )
 				sources &= ~APM_EVT_POWER_BUTTON;
 			else
 				sources |= APM_EVT_POWER_BUTTON;
 
 			if ( ::ioctl ( fd, APM_IOCSEVTSRC, sources ) >= 0 ) // set new event sources
 				res = true;
 			else
 				perror ( "APM_IOCGEVTSRC" );
 		}
 		else
 			perror ( "APM_IOCGEVTSRC" );
 		
 		::close ( fd );
 	}
 	else
 		perror ( "/dev/apm_bios or /dev/misc/apm_bios" );
 		
     return res;
 }
 
 
 bool Zaurus::setDisplayBrightness ( int bright )
 {
 	bool res = false;
 	int fd;
 	
 	if ( bright > 255 )
 		bright = 255;
 	if ( bright < 0 )
 		bright = 0;
 	
 	if (( fd = ::open ( "/dev/fl", O_WRONLY )) >= 0 ) {
 		int bl = ( bright * 4 + 127 ) / 255; // only 4 steps on zaurus
 		if ( bright && !bl )
 			bl = 1;
 		res = ( ::ioctl ( fd, FL_IOCTL_STEP_CONTRAST, bl ) == 0 );
 		::close ( fd );
 	}
 	return res;
 }
 
 
 int Zaurus::displayBrightnessResolution ( ) const 
 {
 	return 4;
 }
 
 //QValueList <int> Zaurus::keyList ( ) const
 //{
 //	QValueList <int> vl;
 //	vl << HardKey_Datebook << HardKey_Contacts << HardKey_Mail << HardKey_Menu << HardKey_Home << HardKey_Suspend << HardKey_Backlight;
 //	return vl;
 //}