Reverting back to use system ( "apm --suspend" );, even though I don't

like it. It is needed since a real apm implementation only allows suspends
by uid == 0, which doesn't work with a multi-user Opie.
So making apm SUID root and calling it on suspend is the only option here.

1 files changed, 14 insertions, 24 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index 2d2f7db..d8415ad 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -10,411 +10,401 @@
     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 bool hasLightSensor ( ) const;
 	virtual int readLightSensor ( );
 	virtual int lightSensorResolution ( ) const;
 	
 	//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 );
+	struct timeval tvs, tvn;
+	::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 );
+	::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 );
 	}
 	
 	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_NO_SOUND
 	static Sound snd ( "alarm" );
 
 	if ( snd. isFinished ( ))
 		snd. play ( );
 #endif
 }
 
 void ODevice::keySound ( )
 {
 #ifndef QT_NO_SOUND
 	static Sound snd ( "keysound" );
 
 	if ( snd. isFinished ( ))
 		snd. play ( );
 #endif
 }
 
 void ODevice::touchSound ( )
 {
 
 #ifndef QT_NO_SOUND
 	static Sound snd ( "touchsound" );
 
 	if ( snd. isFinished ( ))
 		snd. play ( );
 #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;
 }
 
 bool ODevice::hasLightSensor ( ) const
 {
 	return false;
 }
 
 int ODevice::readLightSensor ( )
 {
 	return -1;
 }
 
 int ODevice::lightSensorResolution ( ) const
 {
 	return 0;
 }
 
 //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 if ( d-> m_modelstr == "H3900" )
 			d-> m_model = Model_iPAQ_H39xx;
 		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 );