beginnings of cpu frequency changes

2 files changed, 65 insertions, 6 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index f808960..4b5a54e 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -1,170 +1,171 @@
 /*  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 <qpe/qcopenvelope_qws.h>
 
 #include "odevice.h"
 
 #include <qwindowsystem_qws.h>
 
 #ifndef ARRAY_SIZE
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 #endif
 
 // _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:
         QString m_vendorstr;
         OVendor m_vendor;
 
         QString m_modelstr;
         OModel m_model;
 
         QString m_systemstr;
         OSystem m_system;
 
         QString m_sysverstr;
 
         Transformation m_rotation;
         ODirection m_direction;
 
         QValueList <ODeviceButton> *m_buttons;
         uint                        m_holdtime;
+        QStrList                   *m_cpu_frequencies;
 };
 
 
 class iPAQ : public ODevice, public QWSServer::KeyboardFilter {
 protected:
         virtual void init ( );
         virtual void initButtons ( );
 
 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 bool hasLightSensor ( ) const;
         virtual int readLightSensor ( );
         virtual int lightSensorResolution ( ) 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 ( );
         virtual void initButtons ( );
 
 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 );
 
 protected:
         virtual void buzzer ( int snd );
 
         OLedState m_leds [1];
 };
 
 class SIMpad : public ODevice, public QWSServer::KeyboardFilter {
 protected:
         virtual void init ( );
         virtual void initButtons ( );
 
 public:
         virtual bool setSoftSuspend ( bool soft );
         virtual bool suspend();
 
         virtual bool setDisplayStatus( bool on );
         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 );
 
 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 [1]; //FIXME check if really only one
 };
 
 class Ramses : public ODevice, public QWSServer::KeyboardFilter {
 protected:
         virtual void init ( );
 
 public:
         virtual bool setSoftSuspend ( bool soft );
         virtual bool suspend ( );
@@ -330,192 +331,193 @@ struct s_button {
     "QPE/Rotation", "flip()",
     "QPE/Rotation", "flip()" },
     /*
     { Model_SIMpad_CL4 | Model_SIMpad_SL4 | Model_SIMpad_SLC | Model_SIMpad_TSinus,
     Qt::Key_F12, QT_TRANSLATE_NOOP("Button", "Lower+Upper"),
     "devicebuttons/simpad_lower_upper",
     "QPE/Launcher", "home()",
     "buttonsettings", "raise()" },
     { Model_SIMpad_CL4 | Model_SIMpad_SL4 | Model_SIMpad_SLC | Model_SIMpad_TSinus,
     Qt::Key_F12, QT_TRANSLATE_NOOP("Button", "Lower+Upper"),
     "devicebuttons/simpad_upper_lower",
     "QPE/Launcher", "home()",
     "buttonsettings", "raise()" },
     */
 };
 
 struct r_button {
         uint model;
     Qt::Key code;
     char *utext;
     char *pix;
     char *fpressedservice;
     char *fpressedaction;
     char *fheldservice;
     char *fheldaction;
 } ramses_buttons [] = {
     { Model_Ramses_MNCI,
     Qt::Key_F11, QT_TRANSLATE_NOOP("Button", "Menu Button"),
         "devicebuttons/z_menu",
          "QPE/TaskBar", "toggleMenu()",
         "QPE/TaskBar", "toggleStartMenu()" },
     { Model_Ramses_MNCI,
     Qt::Key_F12, QT_TRANSLATE_NOOP("Button", "Home Button"),
         "devicebuttons/ipaq_home",
         "QPE/Launcher", "home()",
         "buttonsettings", "raise()" },
 };
 
 static QCString makeChannel ( const char *str )
 {
         if ( str && !::strchr ( str, '/' ))
                 return QCString ( "QPE/Application/" ) + str;
         else
                 return str;
 }
 
 static inline bool isQWS()
 {
         return qApp ? ( qApp-> type ( ) == QApplication::GuiServer ) : false;
 }
 
 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 if ( QFile::exists ( "/proc/ucb1x00" ) && QFile::exists ( "/proc/cs3" ))
                         dev = new SIMpad ( );
                 else if ( QFile::exists ( "/proc/sys/board/name" ))
                         dev = new Ramses ( );
                 else
                         dev = new ODevice ( );
 
                 dev-> init ( );
         }
         return dev;
 }
 
 
 /**************************************************
  *
  * common
  *
  **************************************************/
 
 
 ODevice::ODevice ( )
 {
         d = new ODeviceData;
 
         d-> m_modelstr = "Unknown";
         d-> m_model = Model_Unknown;
         d-> m_vendorstr = "Unknown";
         d-> m_vendor = Vendor_Unknown;
         d-> m_systemstr = "Unknown";
         d-> m_system = System_Unknown;
         d-> m_sysverstr = "0.0";
         d-> m_rotation = Rot0;
         d-> m_direction = CW;
 
         d-> m_holdtime = 1000; // 1000ms
         d-> m_buttons = 0;
+        d-> m_cpu_frequencies = new QStrList;
 }
 
 void ODevice::systemMessage ( const QCString &msg, const QByteArray & )
 {
         if ( msg == "deviceButtonMappingChanged()" ) {
                 reloadButtonMapping ( );
         }
 }
 
 void ODevice::init ( )
 {
 }
 
 /**
  * This method initialises the  button mapping
  */
 void ODevice::initButtons ( )
 {
         if ( d-> m_buttons )
                 return;
 
         // Simulation uses iPAQ 3660 device buttons
 
         qDebug ( "init Buttons" );
         d-> m_buttons = new QValueList <ODeviceButton>;
 
         for ( uint i = 0; i < ( sizeof( ipaq_buttons ) / sizeof( i_button )); i++ ) {
                 i_button *ib = ipaq_buttons + i;
                 ODeviceButton b;
 
                 if (( ib-> model & Model_iPAQ_H36xx ) == Model_iPAQ_H36xx ) {
                         b. setKeycode ( ib-> code );
                         b. setUserText ( QObject::tr ( "Button", ib-> utext ));
                         b. setPixmap ( Resource::loadPixmap ( ib-> pix ));
                         b. setFactoryPresetPressedAction ( OQCopMessage ( makeChannel ( ib-> fpressedservice ), ib-> fpressedaction ));
                         b. setFactoryPresetHeldAction ( OQCopMessage ( makeChannel ( ib-> fheldservice ), ib-> fheldaction ));
                         d-> m_buttons-> append ( b );
                 }
         }
         reloadButtonMapping ( );
 
         QCopChannel *sysch = new QCopChannel ( "QPE/System", this );
         connect ( sysch, SIGNAL( received( const QCString &, const QByteArray & )), this, SLOT( systemMessage ( const QCString &, const QByteArray & )));
 }
 
 ODevice::~ODevice ( )
 {
         delete d;
 }
 
 bool ODevice::setSoftSuspend ( bool /*soft*/ )
 {
         return false;
 }
 
 //#include <linux/apm_bios.h>
 
 #define APM_IOC_SUSPEND          OD_IO( 'A', 2 )
 
 /**
  * This method will try to suspend the device
  * It only works if the user is the QWS Server and the apm application
  * is installed.
  * It tries to suspend and then waits some time cause some distributions
  * do have asynchronus apm implementations.
  * This method will either fail and return false or it'll suspend the
  * device and return once the device got woken up
  *
  * @return if the device got suspended
  */
 bool ODevice::suspend ( )
 {
         qDebug("ODevice::suspend");
         if ( !isQWS( ) ) // 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;
 
         bool res = false;
 
         struct timeval tvs, tvn;
         ::gettimeofday ( &tvs, 0 );
 
         ::sync ( ); // flush fs caches
         res = ( ::system ( "apm --suspend" ) == 0 );
 
         // This is needed because the iPAQ apm implementation is asynchronous and we
         // can not be sure when exactly the device is really suspended
         // This can be deleted as soon as a stable familiar with a synchronous apm implementation exists.
 
         if ( res ) {
                 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 );
@@ -680,192 +682,232 @@ void ODevice::alarmSound ( )
 
         if ( snd. isFinished ( ))
                 snd. play ( );
 #endif
 }
 
 /**
  * This plays a key sound
  */
 void ODevice::keySound ( )
 {
 #ifndef QT_NO_SOUND
         static Sound snd ( "keysound" );
 
         if ( snd. isFinished ( ))
                 snd. play ( );
 #endif
 }
 
 /**
  * This plays a touch sound
  */
 void ODevice::touchSound ( )
 {
 #ifndef QT_NO_SOUND
         static Sound snd ( "touchsound" );
 
         if ( snd. isFinished ( ))
                 snd. play ( );
 #endif
 }
 
 /**
  * This method will return a list of leds
  * available on this device
  * @return a list of LEDs.
  */
 QValueList <OLed> ODevice::ledList ( ) const
 {
         return QValueList <OLed> ( );
 }
 
 /**
  * This does return the state of the LEDs
  */
 QValueList <OLedState> ODevice::ledStateList ( OLed /*which*/ ) const
 {
         return QValueList <OLedState> ( );
 }
 
 /**
  * @return the state for a given OLed
  */
 OLedState ODevice::ledState ( OLed /*which*/ ) const
 {
         return Led_Off;
 }
 
 /**
  * Set the state for a LED
  * @param which Which OLed to use
  * @param st The state to set
  * @return success or failure
  */
 bool ODevice::setLedState ( OLed which, OLedState st )
 {
         Q_UNUSED( which )
         Q_UNUSED( st    )
         return false;
 }
 
 /**
  * @return if the device has a light sensor
  */
 bool ODevice::hasLightSensor ( ) const
 {
         return false;
 }
 
 /**
  * @return a value from the light senso
  */
 int ODevice::readLightSensor ( )
 {
         return -1;
 }
 
 /**
  * @return the light sensor resolution whatever that is ;)
  */
 int ODevice::lightSensorResolution ( ) const
 {
         return 0;
 }
 
 /**
+ * @return a list with valid CPU frequency
+ */
+QStrList &ODevice::cpuFrequencies ( ) const
+{
+qWarning("ODevice::cpuFrequencies: m_cpu_frequencies is %d", (int) d->m_cpu_frequencies);
+        return *d->m_cpu_frequencies;
+}
+
+
+/**
+ * Set desired cpu frequency
+ * 
+ * @param index index into d->m_cpu_frequencies of the frequency to be set
+ */
+bool ODevice::setCpuFrequency(uint index)
+{
+        if (index >= d->m_cpu_frequencies->count())
+                return false;
+
+        char *freq = d->m_cpu_frequencies->at(index);
+        qWarning("set freq to %s", freq);
+
+        //TODO: do the change in /proc/sys/cpu/0/speed
+
+        return false;
+}
+
+/**
+ * Returns current frequency index out of d->m_cpu_frequencies
+ */
+uint ODevice::cpuFrequency() const
+{
+        // TODO: get freq from /proc/sys/cpu/0/speed and return index
+
+        return 0;
+}
+
+
+
+/**
  * @return a list of hardware buttons
  */
 const QValueList <ODeviceButton> &ODevice::buttons ( )
 {
         initButtons ( );
 
         return *d-> m_buttons;
 }
 
 /**
  * @return The amount of time that would count as a hold
  */
 uint ODevice::buttonHoldTime ( ) const
 {
         return d-> m_holdtime;
 }
 
 /**
  * This method return a ODeviceButton for a key code
  * or 0 if no special hardware button is available for the device
  *
  * @return The devicebutton or 0l
  * @see ODeviceButton
  */
 const ODeviceButton *ODevice::buttonForKeycode ( ushort code )
 {
         initButtons ( );
 
         for ( QValueListConstIterator<ODeviceButton> it = d-> m_buttons-> begin ( ); it != d-> m_buttons-> end ( ); ++it ) {
                 if ( (*it). keycode ( ) == code )
                         return &(*it);
         }
         return 0;
 }
 
 void ODevice::reloadButtonMapping ( )
 {
         initButtons ( );
 
         Config cfg ( "ButtonSettings" );
 
         for ( uint i = 0; i < d-> m_buttons-> count ( ); i++ ) {
                 ODeviceButton &b = ( *d-> m_buttons ) [i];
                 QString group = "Button" + QString::number ( i );
 
                 QCString pch, hch;
                 QCString pm, hm;
                 QByteArray pdata, hdata;
 
                 if ( cfg. hasGroup ( group )) {
                         cfg. setGroup ( group );
                         pch = cfg. readEntry ( "PressedActionChannel" ). latin1 ( );
                         pm  = cfg. readEntry ( "PressedActionMessage" ). latin1 ( );
                         // pdata = decodeBase64 ( buttonFile. readEntry ( "PressedActionArgs" ));
 
                         hch = cfg. readEntry ( "HeldActionChannel" ). latin1 ( );
                         hm  = cfg. readEntry ( "HeldActionMessage" ). latin1 ( );
                         // hdata = decodeBase64 ( buttonFile. readEntry ( "HeldActionArgs" ));
                 }
 
                 b. setPressedAction ( OQCopMessage ( pch, pm, pdata ));
 
                 b. setHeldAction ( OQCopMessage ( hch, hm, hdata ));
         }
 }
 
 void ODevice::remapPressedAction ( int button, const OQCopMessage &action )
 {
         initButtons ( );
 
         QString mb_chan;
 
         if ( button >= (int) d-> m_buttons-> count ( ))
                 return;
 
         ODeviceButton &b = ( *d-> m_buttons ) [button];
         b. setPressedAction ( action );
 
         mb_chan=b. pressedAction ( ). channel ( );
 
         Config buttonFile ( "ButtonSettings" );
         buttonFile. setGroup ( "Button" + QString::number ( button ));
         buttonFile. writeEntry ( "PressedActionChannel", (const char*) mb_chan);
         buttonFile. writeEntry ( "PressedActionMessage", (const char*) b. pressedAction ( ). message ( ));
 
         //buttonFile. writeEntry ( "PressedActionArgs", encodeBase64 ( b. pressedAction ( ). data ( )));
 
         QCopEnvelope ( "QPE/System", "deviceButtonMappingChanged()" );
 }
 
 void ODevice::remapHeldAction ( int button, const OQCopMessage &action )
 {
         initButtons ( );
 
         if ( button >= (int) d-> m_buttons-> count ( ))
                 return;
@@ -1857,246 +1899,259 @@ bool SIMpad::suspend ( ) // Must override because SIMpad does NOT have apm
 bool SIMpad::setSoftSuspend ( bool soft )
 {
         qDebug( "ODevice for SIMpad: UNHANDLED setSoftSuspend(%s)", soft? "on" : "off" );
         return false;
 }
 
 
 bool SIMpad::setDisplayStatus ( bool on )
 {
         qDebug( "ODevice for SIMpad: setDisplayStatus(%s)", on? "on" : "off" );
 
         bool res = false;
         int fd;
 
         QString cmdline = QString().sprintf( "echo %s > /proc/cs3", on ? "0xd41a" : "0xd40a" ); //TODO make better :)
 
         if (( fd = ::open ( "/dev/fb0", O_RDWR )) >= 0 ) {
                 res = ( ::system( (const char*) cmdline ) == 0 );
                 ::close ( fd );
         }
         return res;
 }
 
 
 bool SIMpad::setDisplayBrightness ( int bright )
 {
         qDebug( "ODevice for SIMpad: setDisplayBrightness( %d )", bright );
         bool res = false;
         int fd;
 
         if ( bright > 255 )
                 bright = 255;
         if ( bright < 0 )
                 bright = 0;
 
         if (( fd = ::open ( SIMPAD_BACKLIGHT_CONTROL, O_WRONLY )) >= 0 ) {
                 int value = 255 - bright;
                 const int mask = SIMPAD_BACKLIGHT_MASK;
                 value = value << 8;
                 value += mask;
                 char writeCommand[100];
                 const int count = sprintf( writeCommand, "0x%x\n", value );
                 res = ( ::write ( fd, writeCommand, count ) != -1 );
                 ::close ( fd );
         }
         return res;
 }
 
 
 int SIMpad::displayBrightnessResolution ( ) const
 {
         switch ( model ( )) {
                 case Model_SIMpad_CL4:
                 case Model_SIMpad_SL4:
                 case Model_SIMpad_SLC:
                 case Model_SIMpad_TSinus:
                         return 255; //TODO find out if this is save
 
                 default:
                         return 2;
         }
 }
 
 /**************************************************
  *
  * Ramses
  *
  **************************************************/
 
 void Ramses::init()
 {
         d->m_vendorstr = "M und N";
         d->m_vendor = Vendor_MundN;
 
         QFile f("/proc/sys/board/ramses");
 
         d->m_modelstr = "Ramses";
         d->m_model = Model_Ramses_MNCI;
 
         d->m_rotation = Rot0;
         d->m_holdtime = 1000;
 
         f.setName("/etc/oz_version");
 
         if (f.open(IO_ReadOnly)) {
                    d->m_systemstr = "OpenEmbedded/Ramses";
                     d->m_system = System_OpenZaurus;
 
                 QTextStream ts(&f);
                 ts.setDevice(&f);
                 d->m_sysverstr = ts.readLine();
                 f.close();
         }
 
         m_power_timer = 0;
 
+qWarning("adding freq");
+        d->m_cpu_frequencies->append("100");
+        d->m_cpu_frequencies->append("200");
+        d->m_cpu_frequencies->append("300");
+        d->m_cpu_frequencies->append("400");
 }
 
 bool Ramses::filter(int /*unicode*/, int keycode, int modifiers, bool isPress, bool autoRepeat)
 {
         Q_UNUSED( keycode );
         Q_UNUSED( modifiers );
         Q_UNUSED( isPress );
         Q_UNUSED( autoRepeat );
         return false;
 }
 
 void Ramses::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);
 }
 
 
 bool Ramses::setSoftSuspend(bool soft)
 {
         qDebug("Ramses::setSoftSuspend(%d)", soft);
 #if 0
         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;
 #else
     return true;
 #endif
 }
 
 bool Ramses::suspend ( )
 {
         qDebug("Ramses::suspend");
+        return false;
 }
 
 /**
  * This sets the display on or off
  */
 bool Ramses::setDisplayStatus(bool on)
 {
         qDebug("Ramses::setDisplayStatus(%d)", on);
 #if 0
         bool res = false;
         int fd;
 
         if ((fd = ::open ("/dev/fb/0", O_RDWR)) >= 0) {
                 res = (::ioctl(fd, FBIOBLANK, on ? VESA_NO_BLANKING : VESA_POWERDOWN) == 0);
                 ::close(fd);
         }
         return res;
 #else
         return true;
 #endif
 }
 
 
 /*
  * We get something between 0..255 into us
 */
 bool Ramses::setDisplayBrightness(int bright)
 {
         qDebug("Ramses::setDisplayBrightness(%d)", bright);
         bool res = false;
         int fd;
 
         // pwm1 brighness: 20 steps 500..0 (dunkel->hell)
 
         if (bright > 255 )
                 bright = 255;
         if (bright < 0)
                 bright = 0;
-        bright = 500-(bright * 500 / 255);
 
+        // Turn backlight completely off
+        if ((fd = ::open("/proc/sys/board/lcd_backlight", O_WRONLY)) >= 0) {
+                char writeCommand[10];
+                const int count = sprintf(writeCommand, "%d\n", bright ? 1 : 0);
+                res = (::write(fd, writeCommand, count) != -1);
+                ::close(fd);
+        }
+
+        // scale backlight brightness to hardware
+        bright = 500-(bright * 500 / 255);
         if ((fd = ::open("/proc/sys/board/pwm1", O_WRONLY)) >= 0) {
                 qDebug(" %d -> pwm1", bright);
                 char writeCommand[100];
                 const int count = sprintf(writeCommand, "%d\n", bright);
                 res = (::write(fd, writeCommand, count) != -1);
                 ::close(fd);
-        } else {
-                qWarning("no write");
         }
         return res;
 }
 
 
 int Ramses::displayBrightnessResolution() const
 {
         return 32;
 }
 
 bool Ramses::setDisplayContrast(int contr)
 {
         qDebug("Ramses::setDisplayContrast(%d)", contr);
         bool res = false;
         int fd;
 
         // pwm0 contrast: 20 steps 79..90 (dunkel->hell)
 
         if (contr > 255 )
                 contr = 255;
         if (contr < 0)
                 contr = 0;
         contr = 90 - (contr * 20 / 255);
 
         if ((fd = ::open("/proc/sys/board/pwm0", O_WRONLY)) >= 0) {
                 qDebug(" %d -> pwm0", contr);
                 char writeCommand[100];
                 const int count = sprintf(writeCommand, "%d\n", contr);
                 res = (::write(fd, writeCommand, count) != -1);
                 res = true;
                 ::close(fd);
         } else {
                 qWarning("no write");
         }
         return res;
 }
 
 
 int Ramses::displayContrastResolution() const
 {
         return 20;
 }
diff --git a/libopie/odevice.h b/libopie/odevice.h
index 0974e8d..7f6f856 100644
--- a/libopie/odevice.h
+++ b/libopie/odevice.h
@@ -1,245 +1,249 @@
 /*  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.
 */
 
 #ifndef _LIBOPIE_ODEVICE_H_
 #define _LIBOPIE_ODEVICE_H_
 
 #include <qobject.h>
 #include <qstring.h>
 #include <qnamespace.h>
+#include <qstrlist.h>
 
 #include <opie/odevicebutton.h>
 
 #include <qpe/qpeapplication.h> /* for Transformation enum.. */
 
 class ODeviceData;
 
 namespace Opie {
 
 /**
  * The available devices
  */
 enum OModel {
         Model_Unknown, // = 0
 
         Model_Series_Mask   = 0xff000000,
 
         Model_iPAQ          = ( 1 << 24 ),
 
         Model_iPAQ_All      = ( Model_iPAQ | 0xffffff ),
         Model_iPAQ_H31xx    = ( Model_iPAQ | 0x000001 ),
         Model_iPAQ_H36xx    = ( Model_iPAQ | 0x000002 ),
         Model_iPAQ_H37xx    = ( Model_iPAQ | 0x000004 ),
         Model_iPAQ_H38xx    = ( Model_iPAQ | 0x000008 ),
         Model_iPAQ_H39xx    = ( Model_iPAQ | 0x000010 ),
 
         Model_Zaurus        = ( 2 << 24 ),
 
         Model_Zaurus_SL5000 = ( Model_Zaurus | 0x000001 ),
         Model_Zaurus_SL5500 = ( Model_Zaurus | 0x000002 ),
         Model_Zaurus_SLA300 = ( Model_Zaurus | 0x000003 ),
         Model_Zaurus_SLB600 = ( Model_Zaurus | 0x000004 ),
         Model_Zaurus_SLC700 = ( Model_Zaurus | 0x000005 ),
 
         Model_SIMpad        = ( 3 << 24 ),
 
         Model_SIMpad_All    = ( Model_SIMpad | 0xffffff ),
         Model_SIMpad_CL4    = ( Model_SIMpad | 0x000001 ),
         Model_SIMpad_SL4    = ( Model_SIMpad | 0x000002 ),
         Model_SIMpad_SLC    = ( Model_SIMpad | 0x000004 ),
         Model_SIMpad_TSinus = ( Model_SIMpad | 0x000008 ),
 
         Model_Ramses        = ( 4 << 24 ),
 
         Model_Ramses_All    = ( Model_Ramses | 0xffffff ),
         Model_Ramses_MNCI   = ( Model_Ramses | 0x000001 ),
 };
 
 /**
  * The vendor of the device
  */
 enum OVendor {
         Vendor_Unknown,
 
         Vendor_HP,
         Vendor_Sharp,
         Vendor_SIEMENS,
         Vendor_MundN,
 };
 
 /**
  * The System used
  */
 enum OSystem {
         System_Unknown,
 
         System_Familiar,
         System_Zaurus,
         System_OpenZaurus
 };
 
 enum OLedState {
         Led_Off,
         Led_On,
         Led_BlinkSlow,
         Led_BlinkFast
 };
 
 enum OLed {
         Led_Mail,
         Led_Power,
         Led_BlueTooth
 };
 
 enum OHardKey {
         HardKey_Datebook  = Qt::Key_F9,
         HardKey_Contacts  = Qt::Key_F10,
         HardKey_Menu      = Qt::Key_F11,
         HardKey_Home      = Qt::Key_F12,
         HardKey_Mail      = Qt::Key_F13,
         HardKey_Record    = Qt::Key_F24,
         HardKey_Suspend   = Qt::Key_F34,
         HardKey_Backlight = Qt::Key_F35,
 };
 
 enum ODirection {
         CW   = 0,
         CCW  = 1,
         Flip = 2,
 };
 
 /**
  * A singleton which gives informations about device specefic option
  * like the Hardware used, LEDs, the Base Distribution and
  * hardware key mappings.
  *
  * @short A small class for device specefic options
  * @see QObject
  * @author Robert Griebl
  * @version 1.0
  */
 class ODevice : public QObject {
         Q_OBJECT
 
 private:
         /* disable copy */
         ODevice ( const ODevice & );
 
 protected:
         ODevice ( );
         virtual void init ( );
         virtual void initButtons ( );
 
         ODeviceData *d;
 
 public:
-    // sandman do we want to allow destructions? -zecke?
+        // sandman do we want to allow destructions? -zecke?
         virtual ~ODevice ( );
 
-
         static ODevice *inst ( );
 
-// information
+        // information
 
         QString modelString ( ) const;
         OModel model ( ) const;
         inline OModel series ( ) const { return (OModel) ( model ( ) & Model_Series_Mask ); }
 
         QString vendorString ( ) const;
         OVendor vendor ( ) const;
 
         QString systemString ( ) const;
         OSystem system ( ) const;
 
         QString systemVersionString ( ) const;
 
         Transformation rotation ( ) const;
         ODirection direction ( ) const;
 
 // system
 
         virtual bool setSoftSuspend ( bool on );
         virtual bool suspend ( );
 
         virtual bool setDisplayStatus ( bool on );
         virtual bool setDisplayBrightness ( int brightness );
         virtual int displayBrightnessResolution ( ) const;
         virtual bool setDisplayContrast ( int contrast );
         virtual int displayContrastResolution ( ) const;
 
 // input / output
         //FIXME playAlarmSound and al might be better -zecke
         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 bool hasLightSensor ( ) const;
         virtual int readLightSensor ( );
         virtual int lightSensorResolution ( ) const;
 
+        QStrList &cpuFrequencies() const;
+        bool setCpuFrequency(uint index);
+        uint cpuFrequency() const;
+
         /**
          * Returns the available buttons on this device.  The number and location
          * of buttons will vary depending on the device.  Button numbers will be assigned
          * by the device manufacturer and will be from most preferred button to least preffered
          * button.  Note that this list only contains "user mappable" buttons.
          */
         const QValueList<ODeviceButton> &buttons ( );
 
         /**
          * Returns the DeviceButton for the \a keyCode.  If \a keyCode is not found, it
          * returns 0L
          */
         const ODeviceButton *buttonForKeycode ( ushort keyCode );
 
         /**
          * Reassigns the pressed action for \a button.  To return to the factory
          * default pass an empty string as \a qcopMessage.
          */
         void remapPressedAction ( int button, const OQCopMessage &qcopMessage );
 
         /**
          * Reassigns the held action for \a button.  To return to the factory
          * default pass an empty string as \a qcopMessage.
          */
         void remapHeldAction ( int button, const OQCopMessage &qcopMessage );
 
         /**
          * How long (in ms) you have to press a button for a "hold" action
          */
         uint buttonHoldTime ( ) const;
 
 signals:
         void buttonMappingChanged ( );
 
 private slots:
         void systemMessage ( const QCString &, const QByteArray & );
 
 protected:
         void reloadButtonMapping ( );
 };
 
 }
 
 #endif