beginnings of cpu frequency changes

1 files changed, 58 insertions, 3 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index f808960..4b5a54e 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -59,32 +59,33 @@ 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 ( );
 
@@ -410,32 +411,33 @@ ODevice *ODevice::inst ( )
 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
  */
@@ -760,32 +762,72 @@ bool ODevice::hasLightSensor ( ) const
  * @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;
 }
@@ -1937,32 +1979,37 @@ void Ramses::init()
 	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);
@@ -1997,32 +2044,33 @@ bool Ramses::setSoftSuspend(bool soft)
 			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);
 	}
@@ -2035,42 +2083,49 @@ bool Ramses::setDisplayStatus(bool on)
 
 /*
  * 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;