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

- add hinge sensor framework for devices with hinge sensors

2 files changed, 88 insertions, 12 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index e24e043..bc09e92 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -142,2 +142,5 @@ public:
 
+	virtual bool hasHingeSensor() const;
+	virtual OHingeStatus readHingeSensor();
+
 	static bool isZaurus();
@@ -825,3 +828,3 @@ bool ODevice::hasLightSensor ( ) const
 /**
- * @return a value from the light senso
+ * @return a value from the light sensor
  */
@@ -833,3 +836,3 @@ int ODevice::readLightSensor ( )
 /**
- * @return the light sensor resolution whatever that is ;)
+ * @return the light sensor resolution
  */
@@ -841,2 +844,18 @@ int ODevice::lightSensorResolution ( ) const
 /**
+ * @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
@@ -1947,5 +1966,2 @@ 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;
@@ -1953,8 +1969,23 @@ bool Zaurus::setDisplayBrightness ( int bright )
 
-	if ( bright > 255 )
-		bright = 255;
-	if ( bright < 0 )
-		bright = 0;
+    if ( bright > 255 ) bright = 255;
+    if ( bright < 0 ) bright = 0;
 
-	if (m_embedix) {
+    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 ) {
@@ -1966,3 +1997,7 @@ bool Zaurus::setDisplayBrightness ( int bright )
 		}
-	} else {
+        }
+    }
+    else
+    {
+        // special treatment for the OpenZaurus unified interface
 #define FB_BACKLIGHT_SET_BRIGHTNESS     _IOW('F', 1, u_int)             /* set brightness */
@@ -2075,3 +2110,3 @@ int Zaurus::displayBrightnessResolution ( ) const
 	if (m_embedix)
-		return 5;
+		return d->m_model == Model_Zaurus_SLC7x0 ? 18 : 5;
 	else
@@ -2080,2 +2115,33 @@ int Zaurus::displayBrightnessResolution ( ) const
 
+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;
+        }
+    }
+}
+
+
 /**************************************************
diff --git a/libopie/odevice.h b/libopie/odevice.h
index 8273761..ee0b0ec 100644
--- a/libopie/odevice.h
+++ b/libopie/odevice.h
@@ -145,2 +145,9 @@ enum ODirection {
 
+enum OHingeStatus {
+    CASE_CLOSED = 3,
+    CASE_PORTRAIT = 2,
+    CASE_LANDSCAPE = 0,
+    CASE_UNKNOWN = 1,
+};
+
 /**
@@ -224,2 +231,5 @@ public:
 
+	virtual bool hasHingeSensor ( ) const;
+	virtual OHingeStatus readHingeSensor ( );
+
 	const QStrList &allowedCpuFrequencies() const;