frequency change works now

4 files changed, 61 insertions, 23 deletions

diff --git a/core/settings/light-and-power/light.cpp b/core/settings/light-and-power/light.cpp
index 8b98672..68c2929 100644
--- a/core/settings/light-and-power/light.cpp
+++ b/core/settings/light-and-power/light.cpp
@@ -43,4 +43,5 @@
 #include <qpushbutton.h>
 #include <qgroupbox.h>
+#include <qcombobox.h>
 
 #include <opie/odevice.h>
@@ -63,5 +64,6 @@ LightSettings::LightSettings( QWidget* parent,  const char* name, WFlags )
         }
         if (m_cres) {
-                GroupLight->setTitle(tr("Backlight & Contrast"));
+                GroupLight->setTitle(tr("Backlight && Contrast"));
+                GroupLight_ac->setTitle(GroupLight->title());
         } else {
                 contrast->hide();
@@ -69,4 +71,13 @@ LightSettings::LightSettings( QWidget* parent,  const char* name, WFlags )
         }
 
+        QStrList freq = ODevice::inst()->cpuFrequencies();
+        if ( freq.count() ) {
+                frequency->insertStrList( freq );
+                frequency_ac->insertStrList( freq );
+        } else {
+                frequency->hide();
+                frequency_ac->hide();
+        }
+
         Config config ( "apm" );
         config. setGroup ( "Battery" );
@@ -78,5 +89,8 @@ LightSettings::LightSettings( QWidget* parent,  const char* name, WFlags )
 
         // battery check and slider
-        LcdOffOnly-> setChecked ( config. readBoolEntry ( "LcdOffOnly", false ));
+        LcdOffOnly->setChecked ( config. readBoolEntry ( "LcdOffOnly", false ));
+
+        // CPU frequency
+        frequency->setCurrentItem( config.readNumEntry("Freq", 0) );
 
         int bright = config. readNumEntry ( "Brightness", 127 );
@@ -108,4 +122,7 @@ LightSettings::LightSettings( QWidget* parent,  const char* name, WFlags )
         LcdOffOnly_ac-> setChecked ( config. readBoolEntry ( "LcdOffOnly", false ));
 
+        // CPU frequency
+        frequency_ac->setCurrentItem( config.readNumEntry("Freq", 0) );
+
         bright = config. readNumEntry ( "Brightness", 255 );
         brightness_ac-> setTickInterval ( QMAX( 16, 256 / m_bres ));
@@ -148,4 +165,5 @@ LightSettings::LightSettings( QWidget* parent,  const char* name, WFlags )
                 connect ( contrast_ac, SIGNAL( valueChanged ( int )), this, SLOT( setContrast ( int )));
         }
+        connect( frequency, SIGNAL( activated(int) ),          this, SLOT( setFrequency(int) ) );
 }
 
@@ -190,4 +208,10 @@ void LightSettings::setContrast ( int contr )
 }
 
+void LightSettings::setFrequency ( int index )
+{
+qWarning("LightSettings::setFrequency(%d)", index);
+        ODevice::inst ( )-> setCpuFrequency(index);
+}
+
 void LightSettings::resetBacklight ( )
 {
@@ -209,4 +233,5 @@ void LightSettings::accept ( )
         if (m_cres)
         config. writeEntry ( "Contrast",   contrast-> value () );
+        config. writeEntry ( "Freq",       frequency->currentItem() );
 
         // ac
@@ -219,4 +244,5 @@ void LightSettings::accept ( )
         if (m_cres)
         config. writeEntry ( "Contrast",   contrast_ac-> value () );
+        config. writeEntry ( "Freq",       frequency_ac->currentItem() );
 
                 // only make light sensor stuff appear if the unit has a sensor
diff --git a/core/settings/light-and-power/light.h b/core/settings/light-and-power/light.h
index 4a8bf6b..c48e5f6 100644
--- a/core/settings/light-and-power/light.h
+++ b/core/settings/light-and-power/light.h
@@ -31,4 +31,5 @@
 
 #include <qstringlist.h>
+#include <qlistbox.h>
 #include "lightsettingsbase.h"
 
@@ -52,4 +53,5 @@ protected slots:
     void setBacklight ( int );
     void setContrast ( int );
+    void setFrequency ( int );
     void resetBacklight ( );
 
@@ -58,4 +60,5 @@ private:
     int m_cres;
     int m_oldcontrast;
+    int m_oldfreq;
     QTimer *m_resettimer;
     QStringList m_sensordata;
diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index 4b5a54e..4c33a0e 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -780,5 +780,4 @@ int ODevice::lightSensorResolution ( ) const
 QStrList &ODevice::cpuFrequencies ( ) const
 {
-qWarning("ODevice::cpuFrequencies: m_cpu_frequencies is %d", (int) d->m_cpu_frequencies);
         return *d->m_cpu_frequencies;
 }
@@ -798,21 +797,18 @@ bool ODevice::setCpuFrequency(uint index)
         qWarning("set freq to %s", freq);
 
-        //TODO: do the change in /proc/sys/cpu/0/speed
-
-        return false;
-}
+        int fd;
 
-/**
- * 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
+        if ((fd = ::open("/proc/sys/cpu/0/speed", O_WRONLY)) >= 0) {
+                char writeCommand[50];
+                const int count = sprintf(writeCommand, "%s\n", freq);
+                int res = (::write(fd, writeCommand, count) != -1);
+                ::close(fd);
+                return res;
+        }
 
-        return 0;
+        return false;
 }
 
 
-
 /**
  * @return a list of hardware buttons
@@ -1993,9 +1989,24 @@ void Ramses::init()
         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");
+#ifdef QT_QWS_ALLOW_OVERCLOCK
+#warning *** Overclocking enabled - this may fry your hardware - you have been warned ***
+#define OC(x...)        x
+#else
+#define OC(x...)
+#endif
+
+
+        // This table is true for a Intel XScale PXA 255
+
+        d->m_cpu_frequencies->append("99000");      // mem= 99, run= 99, turbo= 99, PXbus= 50
+        OC(d->m_cpu_frequencies->append("118000"); )   // mem=118, run=118, turbo=118, PXbus= 59 OC'd mem
+        d->m_cpu_frequencies->append("199100");     // mem= 99, run=199, turbo=199, PXbus= 99
+        OC(d->m_cpu_frequencies->append("236000"); )   // mem=118, run=236, turbo=236, PXbus=118 OC'd mem
+        d->m_cpu_frequencies->append("298600");     // mem= 99, run=199, turbo=298, PXbus= 99
+        OC(d->m_cpu_frequencies->append("354000"); )   // mem=118, run=236, turbo=354, PXbus=118 OC'd mem
+        d->m_cpu_frequencies->append("398099");     // mem= 99, run=199, turbo=398, PXbus= 99
+        d->m_cpu_frequencies->append("398100");     // mem= 99, run=398, turbo=398, PXbus=196
+        OC(d->m_cpu_frequencies->append("471000"); )   // mem=118, run=471, turbo=471, PXbus=236 OC'd mem/core/bus
+
 }
 
@@ -2145,6 +2156,4 @@ bool Ramses::setDisplayContrast(int contr)
                 res = true;
                 ::close(fd);
-        } else {
-                qWarning("no write");
         }
         return res;
diff --git a/libopie/odevice.h b/libopie/odevice.h
index 7f6f856..18ff5f1 100644
--- a/libopie/odevice.h
+++ b/libopie/odevice.h
@@ -201,5 +201,5 @@ public:
         QStrList &cpuFrequencies() const;
         bool setCpuFrequency(uint index);
-        uint cpuFrequency() const;
+        int cpuFrequency() const;
 
         /**