/*
* QCPUFreq - a simple cpufreq GUI
- * Copyright (C) 2010 Daniel Klaffenbach <daniel.klaffenbach@cs.tu-chemnitz.de>
+ * Copyright (C) 2010 Daniel Klaffenbach <danielklaffenbach@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <QFile>
#include <QMessageBox>
#include <QTextStream>
-#include <QProcess>
#include <QDesktopWidget>
-
+#if defined(Q_WS_MAEMO_5)
+ #include <QMaemo5InformationBox>
+#endif
#define APPNAME "QCPUFreq"
-#define APPVERSION "0.1"
+#define APPVERSION "0.3.4"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
- ui(new Ui::MainWindow)
+ ui(new Ui::MainWindow),
+ //do not allow overclocking per default
+ allowOverclocking(false),
+ //create helper process
+ helperProcess( this ),
+ //create a new, stackable help window
+ helpWindow( this ),
+ //create UI refresh timer
+ refreshTimer( this ),
+ //create a QGraphicsScene for the little chip icon
+ scene( this ),
+ //the settings widget
+ settings(this),
+ //show errors about the sudo setup only once
+ showSudoError( true )
{
+ //this is a stacked window on Maemo 5
+ #if defined(Q_WS_MAEMO_5)
+ setAttribute(Qt::WA_Maemo5StackedWindow);
+ #endif
+
ui->setupUi(this);
+
+ init();
refresh();
// enable auto rotation
- setAutoRotaion();
+ setAutoRotation();
- //create a QGraphicsScene for the little chip icon
- scene = new QGraphicsScene();
+ //initialize orientation
orientationChanged();
+ //refresh UI every 10 seconds
+ refreshTimer.start( 10000 );
+
+ // initialize stackable help window
+ #if defined(Q_WS_MAEMO_5)
+ helpWindow.setAttribute(Qt::WA_Maemo5StackedWindow);
+ #endif
+ helpWindow.setWindowFlags( windowFlags() | Qt::Window );
+
+ settings.hide();
+
//connect signals and slots
+ connect(ui->actionHelp, SIGNAL(triggered()), this, SLOT(showHelp()));
connect( ui->actionAbout, SIGNAL(triggered()), this, SLOT(about()) );
connect( ui->freq_adjust, SIGNAL(valueChanged(int)), this, SLOT(adjustFreq()) );
connect(QApplication::desktop(), SIGNAL(resized(int)), this, SLOT(orientationChanged()));
+ connect(ui->sr_box, SIGNAL(clicked()), this, SLOT(setSmartReflex()));
+ connect(&refreshTimer, SIGNAL(timeout()), this, SLOT(refresh()));
+ connect(ui->actionOverclocking, SIGNAL(toggled(bool)), this, SLOT(setOverclocking()));
+ connect(ui->actionSettings, SIGNAL(triggered()), this, SLOT(showSettings()));
+
+
+ //disable overclocking button on vanilla kernels
+ if (!powerKernel) {
+ ui->actionOverclocking->setDisabled(true);
+ }
}
MainWindow::~MainWindow()
{
delete ui;
- delete scene;
}
+
/**
* SLOT: Displays an about box
*/
void MainWindow::about()
{
QMessageBox::about(this, APPNAME " " APPVERSION, "<p style=\"align:center;\">© 2010 Daniel Klaffenbach</p>" );
+ refresh();
}
void MainWindow::adjustFreq()
{
int newmax = getScalingFreq( ui->freq_adjust->sliderPosition() );
+
+ if (newmax == getMaxFreq() ) {
+ //we do not need to change anything in this case
+ return;
+ }
+
QString max;
+
+ //maxfreq should not be smaller than minfreq, because we do not want to decrease minfreq
+ if (newmax < getMinFreq())
+ newmax = getMinFreq();
+
max.setNum( newmax );
- QStringList arguments;
-#if defined(Q_WS_MAEMO_5)
- //on Maemo5 the set_scalingmaxfreq-Script is not in $PATH
- arguments.append( "/opt/usr/bin/set_scalingmaxfreq" );
-#else
- arguments.append( "set_scalingmaxfreq" );
-#endif
- arguments.append( max );
- //execute the scaling script
- QProcess script;
- script.execute( "sudo", arguments );
+ //check for overclocking
+ #if defined(Q_WS_MAEMO_5)
+ if (this->allowOverclocking == false && newmax > 600000) {
+ QMaemo5InformationBox::information(this, tr( "You need to enable overclocking in QCPUFreq's menu for setting frequencies above 600MHz!"), 0);
+ refresh();
+ return;
+ }
+ #endif
+
+ callHelper( "set_maxfreq", max );
refresh();
}
/**
- * Returns the current CPU frequency
+ * Calls the QCPUFreq helper script with "sudo action param"
+ *
+ * @param action : the action of the helper script
+ * @param param : the parameter for the action
+ * @return exit code
*/
-int MainWindow::getCurFreq()
+int MainWindow::callHelper(QString action, QString param)
{
- QString tmp = readScalingFile( "scaling_cur_freq" );
- return tmp.toInt();
+ QStringList arguments;
+
+ #if defined(Q_WS_MAEMO_5)
+ //On Maemo 5 the helper script resides in /opt/usr/bin, which is usually not in $PATH
+ arguments.append( "/opt/usr/bin/QCPUFreq.helper" );
+ #else
+ arguments.append( "QCPUFreq.helper" );
+ #endif
+
+ arguments.append( action );
+ arguments.append( param );
+
+ helperProcess.start( "sudo", arguments, QIODevice::NotOpen );
+
+ if ( showSudoError && !helperProcess.waitForFinished( 400 )) {
+ //do not show this error again
+ showSudoError = false;
+ QMessageBox::critical(this, tr("QCPUFreq"), tr("There seems to be a problem with your sudo setup!"));
+ }
+
+ return helperProcess.exitCode();
}
+
+/**
+ * Returns the current CPU temperature
+ */
+QString MainWindow::getCPUTemp()
+{
+#if defined(Q_WS_MAEMO_5)
+ QFile file( "/sys/class/power_supply/bq27200-0/temp" );
+
+ //check if we can read a more accurate temperature (only for power kernel)
+ if (file.exists())
+ return QString( readSysFile( "class/power_supply/bq27200-0/temp" ) + " " + QString::fromUtf8("\302\260") + "C" );
+ else {
+ /*
+ We actually only need to read the raw temperature, but it appears that by also reading temp1_input
+ the raw temperature (temp1_input_raw) is being updated more frequently.
+ */
+ readSysFile( "devices/platform/omap34xx_temp/temp1_input" );
+
+ //read the current system temperature
+ QString tstring = readSysFile( "devices/platform/omap34xx_temp/temp1_input_raw" );
+ if (tstring == "0")
+ return tr( "Unknown" );
+
+ //convert it to an integer and calculate the approx. temperature from the raw value
+ int tint = tstring.toInt();
+ tint = ( 0.65 * tint );
+ tstring.setNum(tint);
+ return QString( tstring + " " + QString::fromUtf8("\302\260") + "C" );
+ }
+#endif
+ return tr( "Unknown" );
+}
+
+
+/**
+ * Returns the maximum CPU frequency
+ */
int MainWindow::getMaxFreq()
{
- QString tmp = readScalingFile( "scaling_max_freq" );
+ QString tmp = readSysFile( "devices/system/cpu/cpu0/cpufreq/scaling_max_freq" );
return tmp.toInt();
}
+
+/**
+ * Returns the minimum CPU frequency
+ */
int MainWindow::getMinFreq()
{
- QString tmp = readScalingFile( "scaling_min_freq" );
- return tmp.toInt();
+ return this->minFreq;
}
-
/**
* Returns the CPU frequency for the specified scaling step
*/
int MainWindow::getScalingFreq(int step)
{
- QString tmp = readScalingFile( "scaling_available_frequencies" );
- QStringList freqs = tmp.split( " " );
step = step - 1;
if ( step < 0 )
step = 0;
- if ( step > getScalingSteps() )
- step = getScalingSteps();
+ if ( step > getScalingSteps() - 1 )
+ step = getScalingSteps() - 1;
- tmp = freqs[ step ];
- return tmp.toInt();
+ return this->scalingFrequencies[ step ].toInt();
}
+/**
+ * Returns the name of the current CPU frequency scaling governor
+ *
+ * @return QString - name of governor
+ */
QString MainWindow::getScalingGovernor()
{
- return readScalingFile( "scaling_governor" );
+ return readSysFile( "devices/system/cpu/cpu0/cpufreq/scaling_governor" );
}
+
/**
* Returns the amount of available scaling steps.
+ *
+ * @return int
*/
int MainWindow::getScalingSteps()
{
- QString tmp = readScalingFile( "scaling_available_frequencies" );
- QStringList freqs = tmp.split( " " );
- return (freqs.size() - 1);
+ return this->scalingSteps;
}
/**
* Returns the scaling step for the specified frequency.
+ *
+ * @return int
*/
int MainWindow::getScalingStep( int freq )
{
- for( int i = 1; i <= getScalingSteps(); ++i ) {
- if ( getScalingFreq(i) == freq )
- return i;
+ QString tmp;
+ tmp.setNum(freq);
+ return this->scalingFrequencies.indexOf(tmp) + 1;
+}
+
+
+/**
+ * Returns the SmartReflex(tm) state
+ *
+ * \return 0|1
+ */
+int MainWindow::getSmartReflexState()
+{
+//SmartReflex is only supprted on Maemo5
+#if defined(Q_WS_MAEMO_5)
+ QString tmp = readSysFile( "power/sr_vdd1_autocomp" );
+
+ if ( tmp == "1" ) {
+ return 1;
+ } else {
+ return 0;
+ }
+#else
+ //disable UI checkbox
+ ui->sr_box->setDisabled( true );
+
+ return 0;
+#endif
+}
+
+
+/**
+ * Initializes internal variables, such as:
+ * - scalingSteps
+ * - scalingFrequencies
+ * - minFreq
+ * - powerKernel
+ */
+void MainWindow::init()
+{
+ this->minFreq = 0;
+ QString freqs = readSysFile( "devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies" );
+ QStringList freqList = freqs.split( " " );
+ //change the order of the QStringList - last element becomes first
+ for (int i=freqList.size() - 1; i>=0; --i) {
+ if (freqList.at(i) != "")
+ this->scalingFrequencies << freqList.at(i);
+ }
+ this->scalingSteps = (this->scalingFrequencies.size());
+
+ //set minFreq and check avoid_frequencies
+ QString min = readSysFile( "devices/system/cpu/cpu0/cpufreq/scaling_min_freq" );
+ //check if avoid file exists (only on power kernel)
+ QFile file( "/sys/devices/system/cpu/cpu0/cpufreq/ondemand/avoid_frequencies" );
+ if (file.exists()) {
+ QString avoid = readSysFile( "devices/system/cpu/cpu0/cpufreq/ondemand/avoid_frequencies" );
+ QStringList avoidList = avoid.split( " " );
+
+ //check if min is in avoid_frequencies
+ for (int i = getScalingStep( min.toInt() ); i <= this->scalingSteps; ++i) {
+ min.setNum( getScalingFreq(i) );
+ if (!avoidList.contains(min)) {
+ this->minFreq = min.toInt();
+ break;
+ }
+ }
+ } else {
+ this->minFreq = min.toInt();
}
- return 1;
+ //check if we are using a power kernel
+ if ( getScalingFreq(getScalingSteps()) > 600000 ) {
+ this->powerKernel = true;
+ } else {
+ this->powerKernel = false;
+ }
}
-QString MainWindow::readScalingFile(QString scaling_file)
+
+/**
+ * Reads any file in /sys/
+ *
+ * \param sys_file : full path to sys file - omit "/sys/"
+ * \return content of sys file
+ */
+QString MainWindow::readSysFile(QString sys_file)
{
- QFile file( "/sys/devices/system/cpu/cpu0/cpufreq/"+scaling_file );
+ QFile file( "/sys/"+sys_file );
//open the file
if ( !file.exists() || !file.open( QIODevice::ReadOnly ) ) {
QTextStream in( &file );
QString txt = in.readLine();
+ //close the file
+ file.close();
+
return txt;
}
//display the current governor
ui->freq_governor->setText( getScalingGovernor() );
- //display.setNum( getScalingFreq(1) );
- //ui->freq_max->setText( display );
+ //display current temperature
+ ui->cpu_temp->setText( getCPUTemp() );
+
+ //smart reflex button
+ if ( getSmartReflexState() == 1 )
+ ui->sr_box->setCheckState( Qt::Checked );
+ else
+ ui->sr_box->setCheckState( Qt::Unchecked );
+
+
+ //display frequency slider
ui->freq_adjust->setMinimum( 1 );
ui->freq_adjust->setMaximum( getScalingSteps() );
- ui->freq_adjust->setInvertedAppearance( true );
ui->freq_adjust->setSliderPosition( getScalingStep(getMaxFreq()) );
+
+ //ui->retranslateUi(this);
}
//check whether we are using portrait or landscape mode
if ( usePortrait() ) {
- //in portrait mode we want to display the large image
- image.load( ":/img/chip256" );
- this->scene->clear();
- this->scene->addPixmap( image );
-
- ui->graphicsPortrait->setScene( this->scene );
- ui->graphicsPortrait->setMaximumSize( 256, 256 );
- ui->graphicsLandscape->setMaximumSize( 0, 0 );
+ //in portrait mode we want to display the large image
+ image.load( ":/img/chip256" );
+ scene.clear();
+ scene.addPixmap( image );
+
+ ui->graphicsPortrait->setScene( &scene );
+ ui->graphicsPortrait->setMaximumSize( 256, 256 );
+ ui->graphicsLandscape->setMaximumSize( 0, 0 );
} else {
- image.load( ":/img/chip128" );
- this->scene->clear();
- this->scene->addPixmap( image );
+ image.load( ":/img/chip128" );
+ scene.clear();
+ scene.addPixmap( image );
- ui->graphicsLandscape->setScene( this->scene );
- ui->graphicsLandscape->setMaximumSize( 128, 128 );
- ui->graphicsPortrait->setMaximumSize( 0, 0 );
+ ui->graphicsLandscape->setScene( &scene );
+ ui->graphicsLandscape->setMaximumSize( 128, 128 );
+ ui->graphicsPortrait->setMaximumSize( 0, 0 );
}
}
/**
* Enables the auto-rotation feature of Maemo5 devices
*/
-void MainWindow::setAutoRotaion()
+void MainWindow::setAutoRotation()
{
#if defined(Q_WS_MAEMO_5)
setAttribute(Qt::WA_Maemo5AutoOrientation, true);
/**
+ * SLOT: enable/disable overclocking.
+ */
+void MainWindow::setOverclocking()
+{
+ if (ui->actionOverclocking->isChecked()) {
+ #if defined(Q_WS_MAEMO_5)
+ QMaemo5InformationBox::information(this, tr( "Please note that overclocking voids your warranty and may break your device! Be careful!"), 0);
+ #endif
+ this->allowOverclocking = true;
+ } else {
+ this->allowOverclocking = false;
+ }
+}
+
+
+/**
+ * SLOT: Enables or disables Smart Reflex(tm) after pressing sr_btn
+ */
+void MainWindow::setSmartReflex()
+{
+//SmartReflex is only supported on Maemo5
+#if defined(Q_WS_MAEMO_5)
+ if ( getSmartReflexState() == 1 )
+ callHelper( "set_sr", "off");
+ else {
+ QMaemo5InformationBox::information(this, tr( "SmartReflex support is known to be unstable on some devices and may cause random reboots." ), 0);
+ callHelper( "set_sr", "on");
+ }
+
+#endif
+ //refresh the UI
+ refresh();
+}
+
+
+/**
+ * SLOT: display the help window
+ */
+void MainWindow::showHelp()
+{
+ helpWindow.show();
+}
+
+
+/**
+ * SLOT: displays the settings widget
+ */
+void MainWindow::showSettings()
+{
+ settings.setWindowFlags(Qt::Popup);
+ settings.show();
+}
+
+
+/**
* Returns true when the device is in portrait mode
*/
bool MainWindow::usePortrait()
{
QRect screenGeometry = QApplication::desktop()->screenGeometry();
if (screenGeometry.width() > screenGeometry.height())
- return false;
+ return false;
else
- return true;
+ return true;
}
projects / qcpufreq / blobdiff