- add fine granular backlight support for devices with the corgi backlight interface

- add hinge sensor framework for devices with hinge sensors

2 files changed, 113 insertions, 37 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index e24e043..bc09e92 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -139,11 +139,14 @@ public:
 	virtual QValueList <OLedState> ledStateList ( OLed led ) const;
 	virtual OLedState ledState ( OLed led ) const;
 	virtual bool setLedState ( OLed led, OLedState st );
 
+	virtual bool hasHingeSensor() const;
+	virtual OHingeStatus readHingeSensor();
+
 	static bool isZaurus();
-	
-	// Does this break BC? 
+
+	// Does this break BC?
 	virtual bool suspend ( );
 	virtual Transformation rotation ( ) const;
 	virtual ODirection direction ( ) const;
 
@@ -532,9 +535,9 @@ void ODevice::initButtons ( )
 }
 
 ODevice::~ODevice ( )
 {
-// we leak m_devicebuttons and m_cpu_frequency 
+// we leak m_devicebuttons and m_cpu_frequency
 // but it's a singleton and it is not so importantant
 // -zecke
 	delete d;
 }
@@ -822,24 +825,40 @@ bool ODevice::hasLightSensor ( ) const
 	return false;
 }
 
 /**
- * @return a value from the light senso
+ * @return a value from the light sensor
  */
 int ODevice::readLightSensor ( )
 {
 	return -1;
 }
 
 /**
- * @return the light sensor resolution whatever that is ;)
+ * @return the light sensor resolution
  */
 int ODevice::lightSensorResolution ( ) const
 {
 	return 0;
 }
 
 /**
+ * @return if the device has a hinge sensor
+ */
+bool ODevice::hasHingeSensor ( ) const
+{
+	return false;
+}
+
+/**
+ * @return a value from the hinge sensor
+ */
+OHingeStatus ODevice::readHingeSensor ( )
+{
+	return CASE_UNKNOWN;
+}
+
+/**
  * @return a list with CPU frequencies supported by the hardware
  */
 const QStrList &ODevice::allowedCpuFrequencies ( ) const
 {
@@ -848,9 +867,9 @@ const QStrList &ODevice::allowedCpuFrequencies ( ) const
 
 
 /**
  * Set desired CPU frequency
- * 
+ *
  * @param index index into d->m_cpu_frequencies of the frequency to be set
  */
 bool ODevice::setCurrentCpuFrequency(uint index)
 {
@@ -1781,9 +1800,9 @@ void Zaurus::buzzer ( int sound )
 			soundname = "keysound";
 			break;
 		default:
 			soundname = "alarm";
-			
+
 		}
 	}
 
 	// If a soundname is defined, we expect that this device has
@@ -1944,35 +1963,51 @@ bool Zaurus::setSoftSuspend ( bool soft )
 
 
 bool Zaurus::setDisplayBrightness ( int bright )
 {
-// FIXME The C7x0 have a proc-interface (/proc/drivers/corgi-bl) which
-//       is nice to use. Currently it exposes 16+1 levels. Implement this!
-//       (or wait for kergoth unifying the interfaces in the OpenZaurus kernel.)
-	bool res = false;
-	int fd;
-
-	if ( bright > 255 )
-		bright = 255;
-	if ( bright < 0 )
-		bright = 0;
-
-	if (m_embedix) {
-		if (( fd = ::open ( "/dev/fl", O_WRONLY )) >= 0 ) {
-			int bl = ( bright * 4 + 127 ) / 255; // only 4 steps on zaurus
-			if ( bright && !bl )
-				bl = 1;
-			res = ( ::ioctl ( fd, FL_IOCTL_STEP_CONTRAST, bl ) == 0 );
-			::close ( fd );
-		}
-	} else {
-#define FB_BACKLIGHT_SET_BRIGHTNESS     _IOW('F', 1, u_int)             /* set brightness */
-		if (( fd = ::open ( "/dev/fb0", O_WRONLY )) >= 0 ) {
-			res = ( ::ioctl ( fd , FB_BACKLIGHT_SET_BRIGHTNESS, bright ) == 0 );
-			::close ( fd );
-		}
-	}
-	return res;
+    bool res = false;
+    int fd;
+
+    if ( bright > 255 ) bright = 255;
+    if ( bright < 0 ) bright = 0;
+
+    if ( m_embedix )
+    {
+        if ( d->m_model == Model_Zaurus_SLC7x0 )
+        {
+            // special treatment for devices with the corgi backlight interface
+            if (( fd = ::open ( "/proc/driver/fl/corgi-bl", O_WRONLY )) >= 0 )
+            {
+                if ( bright > 0x11 ) bright = 0x11;
+                char writeCommand[100];
+                const int count = sprintf( writeCommand, "0x%x\n", bright );
+                res = ( ::write ( fd, writeCommand, count ) != -1 );
+                ::close ( fd );
+            }
+            return res;
+        }
+        else
+        {
+            // standard treatment for devices with the dumb embedix frontlight interface
+            if (( fd = ::open ( "/dev/fl", O_WRONLY )) >= 0 ) {
+                int bl = ( bright * 4 + 127 ) / 255; // only 4 steps on zaurus
+                if ( bright && !bl )
+                    bl = 1;
+                res = ( ::ioctl ( fd, FL_IOCTL_STEP_CONTRAST, bl ) == 0 );
+                ::close ( fd );
+            }
+        }
+    }
+    else
+    {
+        // special treatment for the OpenZaurus unified interface
+        #define FB_BACKLIGHT_SET_BRIGHTNESS     _IOW('F', 1, u_int)             /* set brightness */
+        if (( fd = ::open ( "/dev/fb0", O_WRONLY )) >= 0 ) {
+            res = ( ::ioctl ( fd , FB_BACKLIGHT_SET_BRIGHTNESS, bright ) == 0 );
+            ::close ( fd );
+        }
+    }
+    return res;
 }
 
 bool Zaurus::suspend ( )
 {
@@ -2072,13 +2107,44 @@ ODirection Zaurus::direction ( ) const
 
 int Zaurus::displayBrightnessResolution ( ) const
 {
 	if (m_embedix)
-		return 5;
+		return d->m_model == Model_Zaurus_SLC7x0 ? 18 : 5;
 	else
 		return 256;
 }
 
+bool Zaurus::hasHingeSensor() const
+{
+    return d->m_model == Model_Zaurus_SLC7x0;
+}
+
+OHingeStatus Zaurus::readHingeSensor()
+{
+    int handle = ::open("/dev/apm_bios", O_RDWR|O_NONBLOCK);
+    if (handle == -1)
+    {
+        qWarning("Zaurus::readHingeSensor() - failed (%s)", "unknown reason" ); //FIXME: use strerror
+        return CASE_UNKNOWN;
+    }
+    else
+    {
+        int retval = ::ioctl(handle, SHARP_IOCTL_GET_ROTATION);
+        ::close (handle);
+        if ( retval == CASE_CLOSED || retval == CASE_PORTRAIT || retval == CASE_LANDSCAPE )
+        {
+            qDebug( "Zaurus::readHingeSensor() - result = %d", retval );
+            return static_cast<OHingeStatus>( retval );
+        }
+        else
+        {
+            qWarning("Zaurus::readHingeSensor() - couldn't compute hinge status!" );
+            return CASE_UNKNOWN;
+        }
+    }
+}
+
+
 /**************************************************
  *
  * SIMpad
  *
diff --git a/libopie/odevice.h b/libopie/odevice.h
index 8273761..ee0b0ec 100644
--- a/libopie/odevice.h
+++ b/libopie/odevice.h
@@ -142,8 +142,15 @@ enum ODirection {
 	CCW  = 1,
 	Flip = 2,
 };
 
+enum OHingeStatus {
+    CASE_CLOSED = 3,
+    CASE_PORTRAIT = 2,
+    CASE_LANDSCAPE = 0,
+    CASE_UNKNOWN = 1,
+};
+
 /**
  * A singleton which gives informations about device specefic option
  * like the Hardware used, LEDs, the Base Distribution and
  * hardware key mappings.
@@ -206,10 +213,10 @@ public:
 	// and in your subclass do do overwrite
 	//	protected virtual int virtual_hook(int, void *)
 	// which is defined below
 
-// input / output
-        //FIXME playAlarmSound and al might be better -zecke
+    // input / output
+    //FIXME playAlarmSound and al might be better -zecke
 	virtual void alarmSound ( );
 	virtual void keySound ( );
 	virtual void touchSound ( );
 
@@ -221,8 +228,11 @@ public:
 	virtual bool hasLightSensor ( ) const;
 	virtual int readLightSensor ( );
 	virtual int lightSensorResolution ( ) const;
 
+	virtual bool hasHingeSensor ( ) const;
+	virtual OHingeStatus readHingeSensor ( );
+
 	const QStrList &allowedCpuFrequencies() const;
 	bool setCurrentCpuFrequency(uint index);
 
 	/**