changed access method for lcd sys params of ipaq h191x and mypal a716 based on Slavek Banko patch

2 files changed, 78 insertions, 28 deletions

diff --git a/libopie2/opiecore/device/odevice_ipaq.cpp b/libopie2/opiecore/device/odevice_ipaq.cpp
index e6e3145..63b60a7 100644
--- a/libopie2/opiecore/device/odevice_ipaq.cpp
+++ b/libopie2/opiecore/device/odevice_ipaq.cpp
@@ -18,32 +18,33 @@
 ..}^=.=       =       ;      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 "odevice_ipaq.h"
 
 /* QT */
 #include <qapplication.h>
+#include <qdir.h>
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qwindowsystem_qws.h>
 
 /* OPIE */
 #include <qpe/config.h>
 #include <qpe/sound.h>
 #include <qpe/qcopenvelope_qws.h>
 
 #include <opie2/okeyfilter.h>
 #include <opie2/oresource.h>
 
 /* STD */
 #include <fcntl.h>
 #include <math.h>
 #include <stdlib.h>
@@ -366,38 +367,56 @@ void iPAQ::playAlarmSound()
 }
 
 bool iPAQ::setDisplayBrightness ( int bright )
 {
     bool res = false;
     int fd;
 
     if ( bright > 255 )
         bright = 255;
     if ( bright < 0 )
         bright = 0;
 
     QString cmdline;
 
     switch ( model()) {
     case Model_iPAQ_H191x:
-        if ( !bright )
-            cmdline = QString::fromLatin1( "echo 4 > /sys/class/backlight/pxafb/power");
-        else
-            cmdline = QString::fromLatin1( "echo 0 > /sys/class/backlight/pxafb/power; echo %1 > /sys/class/backlight/pxafb/brightness" ).arg( bright );
-        // No Global::shellQuote as we gurantee it to be sane
-        res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
+	{
+	    QDir sysClass( "/sys/class/backlight/pxafb/" );
+	    sysClass.setFilter(QDir::Dirs);
+	    int fd;
+	    if ( sysClass.exists() ) {
+		QString sysClassPath = sysClass.absFilePath( "/sys/class/backlight/pxafb/power" );
+		fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+		if ( fd ) {
+		    char buf[10];
+		    buf[0] = bright ? 0 : 4;
+		    buf[1] = '\0';
+		    res = ( ::write( fd, &buf[0], 2 ) == 0 );
+		    ::close( fd );
+		}
+		sysClassPath = sysClass.absFilePath( "/sys/class/backlight/pxafb/brightness" );
+		fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+		if ( fd ) {
+		    char buf[100];
+		    int len = ::snprintf( &buf[0], sizeof buf, "%d", bright );
+		    res = ( ::write( fd, &buf[0], len ) == 0 );
+		    ::close( fd );
+		}
+	    }
+	}
         break; 
 	
     case Model_iPAQ_HX4700:
             cmdline = QString::fromLatin1( "echo %1 > /sys/class/backlight/w100fb/brightness" ).arg( bright );
         // No Global::shellQuote as we gurantee it to be sane
         res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
         break; 
 	
 
     default:
         if (( fd = ::open ( "/dev/touchscreen/0", O_WRONLY )) >= 0 ) {
             FLITE_IN bl;
             bl. mode = 1;
             bl. pwr = bright ? 1 : 0;
             bl. brightness = ( bright * ( displayBrightnessResolution() - 1 ) + 127 ) / 255;
             res = ( ::ioctl ( fd, FLITE_ON, &bl ) == 0 );
@@ -424,46 +443,64 @@ int iPAQ::displayBrightnessResolution() const
         case Model_iPAQ_H191x:
             return 7;
         case Model_iPAQ_H1940:
             return 44;
         default:
             return 2;
     }
 }
 
 bool iPAQ::setDisplayStatus ( bool on )
 {
     bool res = false;
 
     QString cmdline;
 
     if ( model() == Model_iPAQ_H191x ) {
-        cmdline = QString::fromLatin1( "echo %1 > /sys/class/lcd/pxafb/power; echo %2 > /sys/class/backlight/pxafb/power").arg( on ? "0" : "4" ).arg( on ? "0" : "4" );
+	QDir sysClass( "/sys/class/lcd/pxafb/" );
+	sysClass.setFilter(QDir::Dirs);
+	if ( sysClass.exists() ) {
+	    QString sysClassPath = sysClass.absFilePath( "/sys/class/lcd/pxafb/power" );
+	    int fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+	    if ( fd ) {
+		char buf[10];
+		buf[0] = on ? 0 : 4;
+		buf[1] = '\0';
+		res = ( ::write( fd, &buf[0], 2 ) == 0 );
+		::close( fd );
+	    }
+	}
+	return res;
     } else {
         return OAbstractMobileDevice::setDisplayStatus(on);
     }
 
     res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
 
     return res;
 }
 
 bool iPAQ::hasLightSensor() const
 {
+    switch (model()) {
+	case Model_iPAQ_H191x:
+	    return false;
+	default:
     return true;
 }
+}
 
 int iPAQ::readLightSensor()
 {
     int fd;
     int val = -1;
 
     if (( fd = ::open ( "/proc/hal/light_sensor", O_RDONLY )) >= 0 ) {
         char buffer [8];
 
         if ( ::read ( fd, buffer, 5 ) == 5 ) {
             char *endptr;
 
             buffer [4] = 0;
             val = ::strtol ( buffer + 2, &endptr, 16 );
 
             if ( *endptr != 0 )
diff --git a/libopie2/opiecore/device/odevice_mypal.cpp b/libopie2/opiecore/device/odevice_mypal.cpp
index 7e1245a..7eb8d1d 100644
--- a/libopie2/opiecore/device/odevice_mypal.cpp
+++ b/libopie2/opiecore/device/odevice_mypal.cpp
@@ -18,32 +18,33 @@
 ..}^=.=       =       ;      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 "odevice_mypal.h"
 
 /* QT */
 #include <qapplication.h>
+#include <qdir.h>
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qwindowsystem_qws.h>
 
 /* OPIE */
 #include <qpe/config.h>
 #include <qpe/sound.h>
 #include <qpe/qcopenvelope_qws.h>
 
 #include <opie2/okeyfilter.h>
 #include <opie2/oresource.h>
 
 /* STD */
 #include <fcntl.h>
 #include <math.h>
 #include <stdlib.h>
@@ -193,60 +194,72 @@ void MyPal::playAlarmSound()
 	return;
 
     changeMixerForAlarm(0, "/dev/sound/mixer", &snd );
     snd. play();
 #endif
 }
 
 bool MyPal::setDisplayBrightness ( int bright )
 {
     bool res = false;
 
     if ( bright > 255 )
         bright = 255;
     if ( bright < 0 )
         bright = 0;
 
-    QString cmdline;
-
-    switch ( model()) {
-    case Model_MyPal_716:
-        if ( !bright )
-            cmdline = QString::fromLatin1( "echo 4 > /sys/class/backlight/pxafb/power");
-        else
-            cmdline = QString::fromLatin1( "echo 0 > /sys/class/backlight/pxafb/power; echo %1 > /sys/class/backlight/pxafb/brightness" ).arg( bright );
-        // No Global::shellQuote as we gurantee it to be sane
-        res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
-        break; 
-    default:
-	res = OAbstractMobileDevice::setDisplayBrightness(bright);
+    QDir sysClass( "/sys/class/backlight/pxafb/" );
+    sysClass.setFilter(QDir::Dirs);
+    int fd;
+    if ( sysClass.exists() ) {
+	QString sysClassPath = sysClass.absFilePath( "/sys/class/backlight/pxafb/power" );
+	fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+	if ( fd ) {
+	    char buf[10];
+	    buf[0] = bright ? 0 : 4;
+	    buf[1] = '\0';
+	    res = ( ::write( fd, &buf[0], 2 ) == 0 );
+	    ::close( fd );
+	}
+	sysClassPath = sysClass.absFilePath( "/sys/class/backlight/pxafb/brightness" );
+	fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+	if ( fd ) {
+	    char buf[100];
+            int len = ::snprintf( &buf[0], sizeof buf, "%d", bright );
+            res = ( ::write( fd, &buf[0], len ) == 0 );
+	    ::close( fd );
+	}
     }
 
     return res;
 }
 
 int MyPal::displayBrightnessResolution() const
 {
     switch ( model()) {
         case Model_MyPal_716:
             return 7;
         default:
             return OAbstractMobileDevice::displayBrightnessResolution();
     }
 }
 
 bool MyPal::setDisplayStatus ( bool on )
 {
     bool res = false;
 
-    QString cmdline;
-
-    if ( model() == Model_MyPal_716 ) {
-	cmdline = QString::fromLatin1( "echo %1 > /sys/class/lcd/pxafb/power; echo %2 > /sys/class/backlight/pxafb/power").arg( on ? "0" : "4" ).arg( on ? "0" : "4" );
-    } else {
-	return OAbstractMobileDevice::setDisplayStatus(on);
+    QDir sysClass( "/sys/class/lcd/" );
+    sysClass.setFilter(QDir::Dirs);
+    if ( sysClass.exists() ) {
+	QString sysClassPath = sysClass.absFilePath( "/sys/class/lcd/pxafb/power" );
+	int fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+	if ( fd ) {
+	    char buf[10];
+	    buf[0] = on ? 0 : 4;
+	    buf[1] = '\0';
+	    res = ( ::write( fd, &buf[0], 2 ) == 0 );
+	    ::close( fd );
+	}
     }
-
-    res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
 
     return res;
 }