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iokit/Kernel/IODeviceTreeSupport.cpp xnu-792.12.6 xnu-201.19
--- xnu/xnu-792.12.6/iokit/Kernel/IODeviceTreeSupport.cpp
+++ xnu/xnu-201.19/iokit/Kernel/IODeviceTreeSupport.cpp
@@ -1,31 +1,31 @@
 /*
  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @APPLE_LICENSE_HEADER_START@
  * 
- * This file contains Original Code and/or Modifications of Original Code 
- * as defined in and that are subject to the Apple Public Source License 
- * Version 2.0 (the 'License'). You may not use this file except in 
- * compliance with the License.  The rights granted to you under the 
- * License may not be used to create, or enable the creation or 
- * redistribution of, unlawful or unlicensed copies of an Apple operating 
- * system, or to circumvent, violate, or enable the circumvention or 
- * violation of, any terms of an Apple operating system software license 
- * agreement.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1998 Apple Computer, Inc.  All rights reserved. 
  *
- * Please obtain a copy of the License at 
- * http://www.opensource.apple.com/apsl/ and read it before using this 
- * file.
+ * HISTORY
+ * 23 Nov 98 sdouglas, created from IODeviceTreeBus.m, & MacOS exp mgr.
+ * 05 Apr 99 sdouglas, add interrupt mapping.
  *
- * The Original Code and all software distributed under the License are 
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
- * Please see the License for the specific language governing rights and 
- * limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 
 #include <IOKit/IODeviceTreeSupport.h>
@@ -37,14 +37,13 @@
 #include <IOKit/IOLib.h>
 #include <IOKit/IOKitKeys.h>
 
-#include <pexpert/device_tree.h>
-
+#include <DeviceTree.h>
 extern "C" {
-    #include <machine/machine_routines.h>
-    void DTInit( void * data );
-
-    int IODTGetLoaderInfo( char *key, void **infoAddr, int *infosize );
-    void IODTFreeLoaderInfo( char *key, void *infoAddr, int infoSize );
+	#include <machine/machine_routines.h>
+	void DTInit( void * data );
+
+	int IODTGetLoaderInfo( char *key, void **infoAddr, int *infosize );
+	void IODTFreeLoaderInfo( char *key, void *infoAddr, int infoSize );
 }
 
 #include <IOKit/assert.h>
@@ -75,30 +74,29 @@
 const OSSymbol *	gIODTInterruptParentKey;
 const OSSymbol *	gIODTNWInterruptMappingKey;
 
-OSDictionary   *	gIODTSharedInterrupts;
 
 static IORegistryEntry * MakeReferenceTable( DTEntry dtEntry, bool copy );
 static void AddPHandle( IORegistryEntry * regEntry );
 static void FreePhysicalMemory( vm_offset_t * range );
-static bool IODTMapInterruptsSharing( IORegistryEntry * regEntry, OSDictionary * allInts );
 
 IORegistryEntry *
 IODeviceTreeAlloc( void * dtTop )
 {
-    IORegistryEntry *		parent;
-    IORegistryEntry *		child;
-    IORegistryIterator *	regIter;
+    IORegistryEntry 	*parent;
+    IORegistryEntry		*child;
+    IORegistryIterator	*regIter;
     DTEntryIterator		iter;
-    DTEntry			dtChild;
-    DTEntry			mapEntry;
-    OSArray *			stack;
-    OSData *			prop;
-    OSObject *			obj;
-    OSDictionary *		allInts;
-    vm_offset_t *		dtMap;
-    int				propSize;
-    bool			intMap;
-    bool			freeDT;
+    DTEntry				dtChild;
+    DTEntry				mapEntry;
+    OSArray				*stack;
+    OSData				*prop;
+    OSObject			*obj;
+    vm_offset_t			*dtMap;
+    int					propSize;
+    bool				intMap;
+    bool				freeDT;
+
+    IOLog("IODeviceTreeSupport ");
 
     gIODTPlane = IORegistryEntry::makePlane( kIODeviceTreePlane );
 
@@ -150,12 +148,12 @@
 
     parent = MakeReferenceTable( (DTEntry)dtTop, freeDT );
 
-    stack = OSArray::withObjects( (const OSObject **) &parent, 1, 10 );
+    stack = OSArray::withObjects( & (const OSObject *) parent, 1, 10 );
     DTCreateEntryIterator( (DTEntry)dtTop, &iter );
 
     do {
         parent = (IORegistryEntry *)stack->getObject( stack->getCount() - 1);
-        //parent->release();
+		//parent->release();
         stack->removeObject( stack->getCount() - 1);
 
         while( kSuccess == DTIterateEntries( iter, &dtChild) ) {
@@ -163,14 +161,14 @@
             child = MakeReferenceTable( dtChild, freeDT );
             child->attachToParent( parent, gIODTPlane);
 
-            AddPHandle( child );
+			AddPHandle( child );
 
             if( kSuccess == DTEnterEntry( iter, dtChild)) {
                 stack->setObject( parent);
                 parent = child;
             }
-            // only registry holds retain
-            child->release();
+	    	// only registry holds retain
+	    	child->release();
         }
 
     } while( stack->getCount()
@@ -183,8 +181,8 @@
 
     // make root name first compatible entry (purely cosmetic)
     if( (prop = (OSData *) parent->getProperty( gIODTCompatibleKey))) {
-        parent->setName( parent->getName(), gIODTPlane );
-        parent->setName( (const char *) prop->getBytesNoCopy() );
+		parent->setName( parent->getName(), gIODTPlane );
+		parent->setName( (const char *) prop->getBytesNoCopy() );
     }
 
     // attach tree to meta root
@@ -192,74 +190,50 @@
     parent->release();
 
     if( freeDT ) {
-        // free original device tree
+		// free original device tree
         DTInit(0);
         IODTFreeLoaderInfo( "DeviceTree",
-			(void *)dtMap[0], round_page_32(dtMap[1]) );
+			(void *)dtMap[0], round_page(dtMap[1]) );
     }
 
     // adjust tree
-
-    gIODTSharedInterrupts = OSDictionary::withCapacity(4);
-    allInts = OSDictionary::withCapacity(4);
     intMap = false;
     regIter = IORegistryIterator::iterateOver( gIODTPlane,
 						kIORegistryIterateRecursively );
-    assert( regIter && allInts && gIODTSharedInterrupts );
-    if( regIter && allInts && gIODTSharedInterrupts ) {
-        while( (child = regIter->getNextObject())) {
-            IODTMapInterruptsSharing( child, allInts );
-            if( !intMap && child->getProperty( gIODTInterruptParentKey))
-                intMap = true;
-
-            // Look for a "driver,AAPL,MacOSX,PowerPC" property.
-            if( (obj = child->getProperty( "driver,AAPL,MacOSX,PowerPC"))) {
-                gIOCatalogue->addExtensionsFromArchive((OSData *)obj);
-                child->removeProperty( "driver,AAPL,MacOSX,PowerPC");
-            }
-
-            // some gross pruning
-            child->removeProperty( "lanLib,AAPL,MacOS,PowerPC");
-
-            if( (obj = child->getProperty( "driver,AAPL,MacOS,PowerPC"))) {
-
-                if( (0 == (prop = (OSData *)child->getProperty( gIODTTypeKey )))
-                  || (strcmp( "display", (char *) prop->getBytesNoCopy())) ) {
-                    child->removeProperty( "driver,AAPL,MacOS,PowerPC");
-                }
-            }
-        }
-        regIter->release();
-    }
-
-#if IODTSUPPORTDEBUG
-    parent->setProperty("allInts", allInts);
-    parent->setProperty("sharedInts", gIODTSharedInterrupts);
-
-    regIter = IORegistryIterator::iterateOver( gIODTPlane,
-						kIORegistryIterateRecursively );
-    if (regIter) {
-        while( (child = regIter->getNextObject())) {
-	    OSArray *
-	    array = OSDynamicCast(OSArray, child->getProperty( gIOInterruptSpecifiersKey ));
-	    for( UInt32 i = 0; array && (i < array->getCount()); i++)
-	    {
-		IOOptionBits options;
-		IOReturn ret = IODTGetInterruptOptions( child, i, &options );
-		if( (ret != kIOReturnSuccess) || options)
-		    IOLog("%s[%ld] %ld (%x)\n", child->getName(), i, options, ret);
-	    }
-	}
-        regIter->release();
-    }
-#endif
-
-    allInts->release();
+    assert( regIter );
+    if( regIter) {
+		while( (child = regIter->getNextObject())) {
+			IODTMapInterrupts( child );
+			if( !intMap && child->getProperty( gIODTInterruptParentKey))
+				intMap = true;
+	
+			// Look for a "driver,AAPL,MacOSX,PowerPC" property.
+			if( (obj = child->getProperty( "driver,AAPL,MacOSX,PowerPC"))) {
+				gIOCatalogue->addExtensionsFromArchive((OSData *)obj);
+	
+				child->removeProperty( "driver,AAPL,MacOSX,PowerPC");
+			}
+	
+			// some gross pruning
+			child->removeProperty( "lanLib,AAPL,MacOS,PowerPC");
+	
+			if( (obj = child->getProperty( "driver,AAPL,MacOS,PowerPC"))) {
+	
+				if( (0 == (prop = (OSData *)child->getProperty( gIODTTypeKey )))
+					|| (strcmp( "display", (char *) prop->getBytesNoCopy())) ) {
+					child->removeProperty( "driver,AAPL,MacOS,PowerPC");
+				}
+			}
+		}
+		regIter->release();
+    }
 
     if( intMap)
-        // set a key in the root to indicate we found NW interrupt mapping
-        parent->setProperty( gIODTNWInterruptMappingKey,
-                (OSObject *) gIODTNWInterruptMappingKey );
+		// set a key in the root to indicate we found NW interrupt mapping
+		parent->setProperty( gIODTNWInterruptMappingKey,
+			(OSObject *) gIODTNWInterruptMappingKey );
+
+    IOLog("done\n");
 
     return( parent);
 }
@@ -334,58 +308,57 @@
     regEntry = new IOService;
 
     if( regEntry && (false == regEntry->init())) {
-        regEntry->release();
-        regEntry = 0;
+		regEntry->release();
+		regEntry = 0;
     }
 
     if( regEntry &&
-      (kSuccess == DTCreatePropertyIterator( dtEntry, &dtIter))) {
+		(kSuccess == DTCreatePropertyIterator( dtEntry, &dtIter))) {
 
         propTable = regEntry->getPropertyTable();
 
-        while( kSuccess == DTIterateProperties( dtIter, &name)) {
-
-            if(  kSuccess != DTGetProperty( dtEntry, name, &prop, &propSize ))
-                continue;
-
-            if( copy) {
-                nameKey = OSSymbol::withCString(name);
-                data = OSData::withBytes(prop, propSize);
-            } else {
-                nameKey = OSSymbol::withCStringNoCopy(name);
-                data = OSData::withBytesNoCopy(prop, propSize);
-            }
-            assert( nameKey && data );
-
-            propTable->setObject( nameKey, data);
-            data->release();
-            nameKey->release();
-
-            if( nameKey == gIODTNameKey ) {
-                if( copy)
-                    sym = OSSymbol::withCString( (const char *) prop);
-                else
-                    sym = OSSymbol::withCStringNoCopy( (const char *) prop);
-                regEntry->setName( sym );
-                sym->release();
-
-            } else if( nameKey == gIODTUnitKey ) {
-                // all OF strings are null terminated... except this one
-                if( propSize >= (int) sizeof( location))
-                    propSize = sizeof( location) - 1;
-                strncpy( location, (const char *) prop, propSize );
-                location[ propSize ] = 0;
-                regEntry->setLocation( location );
-                propTable->removeObject( gIODTUnitKey );
-                noLocation = false;
-    
-            } else if( noLocation && (0 == strcmp( name, "reg"))) {
-                // default location - override later
-                sprintf( location, "%lX", *((UInt32 *) prop) );
-                regEntry->setLocation( location );
-            }
-        }
-        DTDisposePropertyIterator( dtIter);
+		while( kSuccess == DTIterateProperties( dtIter, &name)) {
+	
+			if(  kSuccess != DTGetProperty( dtEntry, name, &prop, &propSize ))
+				continue;
+	
+			if( copy) {
+				nameKey = OSSymbol::withCString(name);
+				data = OSData::withBytes(prop, propSize);
+			} else {
+				nameKey = OSSymbol::withCStringNoCopy(name);
+				data = OSData::withBytesNoCopy(prop, propSize);
+			}
+			assert( nameKey && data );
+	
+			propTable->setObject( nameKey, data);
+			data->release();
+			nameKey->release();
+	
+			if( nameKey == gIODTNameKey ) {
+				if( copy)
+					sym = OSSymbol::withCString( (const char *) prop);
+				else
+					sym = OSSymbol::withCStringNoCopy( (const char *) prop);
+				regEntry->setName( sym );
+				sym->release();
+			} else if( nameKey == gIODTUnitKey ) {
+				// all OF strings are null terminated... except this one
+				if( propSize >= (int) sizeof( location))
+					propSize = sizeof( location) - 1;
+				strncpy( location, (const char *) prop, propSize );
+				location[ propSize ] = 0;
+				regEntry->setLocation( location );
+				propTable->removeObject( gIODTUnitKey );
+				noLocation = false;
+		
+			} else if( noLocation && (0 == strcmp( name, "reg"))) {
+				// default location - override later
+				sprintf( location, "%lX", *((UInt32 *) prop) );
+				regEntry->setLocation( location );
+			}
+		}
+		DTDisposePropertyIterator( dtIter);
     }
 
     return( regEntry);
@@ -396,10 +369,10 @@
     OSData *	data;
 
     if( regEntry->getProperty( gIODTInterruptCellKey)
-      && (data = OSDynamicCast( OSData, regEntry->getProperty( gIODTPHandleKey )))) {
-        // a possible interrupt-parent
-        gIODTPHandles->setObject( data );
-        gIODTPHandleMap->setObject( regEntry );
+     	&& (data = OSDynamicCast( OSData, regEntry->getProperty( gIODTPHandleKey )))) {
+		// a possible interrupt-parent
+		gIODTPHandles->setObject( data );
+		gIODTPHandleMap->setObject( regEntry );
     }
 }
 
@@ -410,10 +383,10 @@
     int				i;
 
     for( i = 0; (data = (OSData *)gIODTPHandles->getObject( i )); i++ ) {
-        if( phandle == *((UInt32 *)data->getBytesNoCopy())) {
-            regEntry = (IORegistryEntry *)
-            gIODTPHandleMap->getObject( i );
-            break;
+		if( phandle == *((UInt32 *)data->getBytesNoCopy())) {
+			regEntry = (IORegistryEntry *)
+			gIODTPHandleMap->getObject( i );
+			break;
         }
     }
 
@@ -426,11 +399,11 @@
     OSData	*data;
 
     if( (data = OSDynamicCast( OSData, regEntry->getProperty( name )))
-      && (4 == data->getLength())) {
+		&& (4 == data->getLength())) {
         *value = *((UInt32 *) data->getBytesNoCopy());
-        return( true );
+		return( true );
     } else
-        return( false );
+		return( false );
 }
 
 IORegistryEntry * IODTFindInterruptParent( IORegistryEntry * regEntry )
@@ -439,12 +412,12 @@
     UInt32		phandle;
 
     if( GetUInt32( regEntry, gIODTInterruptParentKey, &phandle))
-        parent = FindPHandle( phandle );
+		parent = FindPHandle( phandle );
 
     else if( 0 == regEntry->getProperty( "interrupt-controller"))
-        parent = regEntry->getParentEntry( gIODTPlane);
+		parent = regEntry->getParentEntry( gIODTPlane);
     else
-        parent = 0;
+		parent = 0;
 
     return( parent );
 }
@@ -452,9 +425,9 @@
 const OSSymbol * IODTInterruptControllerName( IORegistryEntry * regEntry )
 {
     const OSSymbol	*sym;
-    UInt32		phandle;
-    bool		ok;
-    char 		buf[48];
+    UInt32			phandle;
+    bool			ok;
+    char 			buf[48];
 
     ok = GetUInt32( regEntry, gIODTPHandleKey, &phandle);
     assert( ok );
@@ -463,7 +436,7 @@
         sprintf( buf, "IOInterruptController%08lX", phandle);
         sym = OSSymbol::withCString( buf );
     } else
-        sym = 0;
+		sym = 0;
 
     return( sym );
 }
@@ -492,76 +465,77 @@
     UInt32			i, original_icells;
     bool			cmp, ok = false;
 
+
     parent = IODTFindInterruptParent( regEntry );    
     IODTGetICellCounts( parent, &icells, &acells );
     addrCmp = 0;
     if( acells) {
-        data = OSDynamicCast( OSData, regEntry->getProperty( "reg" ));
-        if( data && (data->getLength() >= (acells * sizeof( UInt32))))
-            addrCmp = (UInt32 *) data->getBytesNoCopy();
+		data = OSDynamicCast( OSData, regEntry->getProperty( "reg" ));
+		if( data && (data->getLength() >= (acells * sizeof( UInt32))))
+	    	addrCmp = (UInt32 *) data->getBytesNoCopy();
     }
     original_icells = icells;
     regEntry = parent;
     
-    do {
+	do {
 #if IODTSUPPORTDEBUG
-        kprintf ("IODTMapOneInterrupt: current regEntry name %s\n", regEntry->getName());
-        kprintf ("acells - icells: ");
-        for (i = 0; i < acells; i++) kprintf ("0x%08X ", addrCmp[i]);
-        kprintf ("- ");
-        for (i = 0; i < icells; i++) kprintf ("0x%08X ", intSpec[i]);
-        kprintf ("\n");
+		kprintf ("IODTMapOneInterrupt: current regEntry name %s\n", regEntry->getName());
+		kprintf ("acells - icells: ");
+		for (i = 0; i < acells; i++) kprintf ("0x%08X ", addrCmp[i]);
+		kprintf ("- ");
+		for (i = 0; i < icells; i++) kprintf ("0x%08X ", intSpec[i]);
+ 		kprintf ("\n");
 #endif
 
-        if( parent && (data = OSDynamicCast( OSData,
-            regEntry->getProperty( "interrupt-controller")))) {
-            // found a controller - don't want to follow cascaded controllers
+		if( parent && (data = OSDynamicCast( OSData,
+			regEntry->getProperty( "interrupt-controller")))) {
+	    	// found a controller - don't want to follow cascaded controllers
             parent = 0;
             *spec = OSData::withBytesNoCopy( (void *) intSpec,
                                             icells * sizeof( UInt32));
             *controller = IODTInterruptControllerName( regEntry );
-            ok = (*spec && *controller);
-        } else if( parent && (data = OSDynamicCast( OSData,
-                    regEntry->getProperty( "interrupt-map")))) {
+	    	ok = (*spec && *controller);
+		} else if( parent && (data = OSDynamicCast( OSData,
+			regEntry->getProperty( "interrupt-map")))) {
             // interrupt-map
             map = (UInt32 *) data->getBytesNoCopy();
             endMap = map + (data->getLength() / sizeof(UInt32));
             data = OSDynamicCast( OSData, regEntry->getProperty( "interrupt-map-mask" ));
             if( data && (data->getLength() >= ((acells + icells) * sizeof( UInt32))))
                 maskCmp = (UInt32 *) data->getBytesNoCopy();
-            else
-                maskCmp = 0;
+	   		else
+				maskCmp = 0;
 
 #if IODTSUPPORTDEBUG
-            if (maskCmp) {
-                kprintf ("        maskCmp: ");
-                for (i = 0; i < acells + icells; i++) {
-                    if (i == acells)
-                        kprintf ("- ");
-                    kprintf ("0x%08X ", maskCmp[i]);
-                }
-                kprintf ("\n");
-                kprintf ("         masked: ");
-                for (i = 0; i < acells + icells; i++) {
-                    if (i == acells)
-                        kprintf ("- ");
-                    kprintf ("0x%08X ", ((i < acells) ? addrCmp[i] : intSpec[i-acells]) & maskCmp[i]);
-                }
-                kprintf ("\n");
-            } else
-                kprintf ("no maskCmp\n");
+ 			if (maskCmp) {
+				kprintf ("        maskCmp: ");
+				for (i = 0; i < acells + icells; i++) {
+					if (i == acells)
+						kprintf ("- ");
+					kprintf ("0x%08X ", maskCmp[i]);
+				}
+ 				kprintf ("\n");
+				kprintf ("         masked: ");
+				for (i = 0; i < acells + icells; i++) {
+					if (i == acells)
+						kprintf ("- ");
+					kprintf ("0x%08X ", ((i < acells) ? addrCmp[i] : intSpec[i-acells]) & maskCmp[i]);
+				}
+ 				kprintf ("\n");
+ 			} else
+ 				kprintf ("no maskCmp\n");
 #endif
-            do {
+			do {
 #if IODTSUPPORTDEBUG
-                kprintf ("            map: ");
-                for (i = 0; i < acells + icells; i++) {
-                    if (i == acells)
-                        kprintf ("- ");
-                    kprintf ("0x%08X ", map[i]);
-                }
-                kprintf ("\n");
+				kprintf ("            map: ");
+				for (i = 0; i < acells + icells; i++) {
+					if (i == acells)
+						kprintf ("- ");
+					kprintf ("0x%08X ", map[i]);
+				}
+ 				kprintf ("\n");
 #endif
-                for( i = 0, cmp = true; cmp && (i < (acells + icells)); i++) {
+				for( i = 0, cmp = true; cmp && (i < (acells + icells)); i++) {
                     cell = (i < acells) ? addrCmp[i] : intSpec[ i - acells ];
                     if( maskCmp)
                         cell &= maskCmp[i];
@@ -572,94 +546,55 @@
                 if( 0 == (parent = FindPHandle( *(map++) )))
                     unexpected(break);
 
-                IODTGetICellCounts( parent, &picells, &pacells );
+				IODTGetICellCounts( parent, &picells, &pacells );
                 if( cmp) {
                     addrCmp = map;
                     intSpec = map + pacells;
                     regEntry = parent;
-                } else {
+				} else {
                     map += pacells + picells;
-                }
+				}
             } while( !cmp && (map < endMap) );
             if (!cmp)
-                parent = 0;
-        } 
-
-        if( parent) {
+            	parent = 0;
+		} 
+
+		if( parent) {
             IODTGetICellCounts( parent, &icells, &acells );
-            regEntry = parent;
-        }
-
-    } while( parent);
+	    	regEntry = parent;
+		}
+	} while( parent);
 
     return( ok ? original_icells : 0 );
 }
 
-IOReturn IODTGetInterruptOptions( IORegistryEntry * regEntry, int source, IOOptionBits * options )
-{
-    OSArray *	controllers;
-    OSArray *	specifiers;
-    OSArray *	shared;
-    OSObject *	spec;
-    OSObject *	oneSpec;
-
-    *options = 0;
-
-    controllers = OSDynamicCast(OSArray, regEntry->getProperty(gIOInterruptControllersKey));
-    specifiers  = OSDynamicCast(OSArray, regEntry->getProperty(gIOInterruptSpecifiersKey));
-
-    if( !controllers || !specifiers)
-        return (kIOReturnNoInterrupt);
-    
-    shared = (OSArray *) gIODTSharedInterrupts->getObject(
-                        (const OSSymbol *) controllers->getObject(source) );
-    if (!shared)
-        return (kIOReturnSuccess);
-
-    spec = specifiers->getObject(source);
-    if (!spec)
-        return (kIOReturnNoInterrupt);
-
-    for (unsigned int i = 0;
-            (oneSpec = shared->getObject(i))
-            && (!oneSpec->isEqualTo(spec));
-            i++ )	{}
-
-    if (oneSpec)
-        *options = kIODTInterruptShared;
-
-    return (kIOReturnSuccess);
-}
-
-static bool IODTMapInterruptsSharing( IORegistryEntry * regEntry, OSDictionary * allInts )
-{
-    IORegistryEntry *	parent;
-    OSData *		local;
-    OSData *		local2;
-    UInt32 *		localBits;
-    UInt32 *		localEnd;
-    OSData * 		map;
-    OSObject *		oneMap;
-    OSArray *		mapped;
-    OSArray *		controllerInts;
-    const OSSymbol *	controller;
-    OSArray *		controllers;
-    UInt32		skip = 1;
-    bool		ok, nw;
+bool IODTMapInterrupts( IORegistryEntry * regEntry )
+{
+    IORegistryEntry *parent;
+    OSData			*local;
+    OSData			*local2;
+    UInt32			*localBits;
+    UInt32			*localEnd;
+    OSData			*map;
+    OSArray			*mapped;
+    const OSSymbol	*controller;
+    OSArray			*controllers;
+    UInt32			skip = 1;
+    bool			ok, nw;
 
     nw = (0 == (local = OSDynamicCast( OSData,
-        regEntry->getProperty( gIODTAAPLInterruptsKey))));
+		regEntry->getProperty( gIODTAAPLInterruptsKey))));
     if( nw && (0 == (local = OSDynamicCast( OSData,
-        regEntry->getProperty( "interrupts")))))
-        return( true );		// nothing to see here
+		regEntry->getProperty( "interrupts")))))
+		return( true );		// nothing to see here
 
     if( nw && (parent = regEntry->getParentEntry( gIODTPlane))) {
-        // check for bridges on old world
-        if( (local2 = OSDynamicCast( OSData,
-                parent->getProperty( gIODTAAPLInterruptsKey)))) {
-            local = local2;
-            nw = false;
-        }
+		// check for bridges on old world
+		if( (local2 = OSDynamicCast( OSData,
+ 			parent->getProperty( gIODTAAPLInterruptsKey)))) {
+	    	local = local2;
+	    	nw = false;
+		}
     }
 
     localBits = (UInt32 *) local->getBytesNoCopy();
@@ -674,7 +609,7 @@
             skip = IODTMapOneInterrupt( regEntry, localBits, &map, &controller );
             if( 0 == skip) {
                 IOLog("%s: error mapping interrupt[%d]\n",
-                        regEntry->getName(), mapped->getCount());
+					regEntry->getName(), mapped->getCount());
                 break;
             }
         } else {
@@ -686,47 +621,8 @@
 
         localBits += skip;
         mapped->setObject( map );
-        controllers->setObject( controller );
-
-        if (allInts)
-        {
-            controllerInts = (OSArray *) allInts->getObject( controller );
-            if (controllerInts)
-	    {
-                for (unsigned int i = 0; (oneMap = controllerInts->getObject(i)); i++)
-                {
-                    if (map->isEqualTo(oneMap))
-                    {
-                        controllerInts = (OSArray *) gIODTSharedInterrupts->getObject( controller );
-                        if (controllerInts)
-                            controllerInts->setObject(map);
-                        else
-                        {
-                            controllerInts = OSArray::withObjects( (const OSObject **) &map, 1, 4 );
-                            if (controllerInts)
-                            {
-                                gIODTSharedInterrupts->setObject( controller, controllerInts );
-                                controllerInts->release();
-                            }
-                        }
-                        break;
-                    }
-                }
-		if (!oneMap)
-                    controllerInts->setObject(map);
-            }
-            else
-            {
-                controllerInts = OSArray::withObjects( (const OSObject **) &map, 1, 16 );
-                if (controllerInts)
-                {
-                    allInts->setObject( controller, controllerInts );
-                    controllerInts->release();
-                }
-            }
-        }
-
         map->release();
+        controllers->setObject( (OSObject *) controller );
         controller->release();
 
     } while( localBits < localEnd);
@@ -734,7 +630,7 @@
     ok &= (localBits == localEnd);
 
     if( ok ) {
-        // store results
+		// store results
         ok  = regEntry->setProperty( gIOInterruptControllersKey, controllers);
         ok &= regEntry->setProperty( gIOInterruptSpecifiersKey, mapped);
     }
@@ -745,11 +641,6 @@
         mapped->release();
 
     return( ok );
-}
-
-bool IODTMapInterrupts( IORegistryEntry * regEntry )
-{
-    return( IODTMapInterruptsSharing( regEntry, 0 ));
 }
 
 /*
@@ -835,7 +726,7 @@
 		obj->release();
     }
 #ifdef DEBUG
-    else IOLog("Couldn't unserialize %s\n", keys );
+    	else IOLog("Couldn't unserialize %s\n", keys );
 #endif
 
     return( result );
@@ -855,7 +746,6 @@
     iter = IORegistryIterator::iterateOver( from, gIODTPlane,
 		(options & kIODTRecursive) ? kIORegistryIterateRecursively : 0 );
     if( iter) {
-
         do {
 
             if( result)
@@ -869,18 +759,17 @@
     
                 // Look for existence of a debug property to skip
                 if( next->getProperty("AAPL,ignore"))
-                    continue;
+                                    continue;
     
-                if( keys) {
+                    if( keys) {
                     cmp = IODTMatchNubWithKeys( next, keys );
                     if( (minus && (false == cmp))
                             || ((false == minus) && (false != cmp)) )
                         result->setObject( next);
-                } else
+                    } else
                     result->setObject( next);
             }
         } while( !iter->isValid());
-
         iter->release();
     }
 
@@ -907,7 +796,7 @@
     persist.locationFunc = locationFunc;
     prop = OSData::withBytes( &persist, sizeof( persist));
     if( !prop)
-        return;
+		return;
 
     regEntry->setProperty( gIODTPersistKey, prop);
     prop->release();
@@ -919,6 +808,7 @@
     cellCount--;
     return( left[ cellCount ] - right[ cellCount ] );
 }
+
 
 void IODTGetCellCounts( IORegistryEntry * regEntry,
 			    UInt32 * sizeCount, UInt32 * addressCount)
@@ -927,7 +817,7 @@
         *sizeCount = 1;
     if( !GetUInt32( regEntry, gIODTAddressCellKey, addressCount))
         *addressCount = 2;
-    return;
+	return;
 }
 
 // Given addr & len cells from our child, find it in our ranges property, then
@@ -940,23 +830,20 @@
                              UInt32 cellsIn[],
                              IOPhysicalAddress * phys, IOPhysicalLength * len )
 {
-    IORegistryEntry	*parent;
-    OSData		*prop;
+    IORegistryEntry		*parent;
+    OSData				*prop;
     // cells in addresses at regEntry
-    UInt32		sizeCells, addressCells;
+    UInt32				sizeCells, addressCells;
     // cells in addresses below regEntry
-    UInt32		childSizeCells, childAddressCells;
-    UInt32		childCells;
-    UInt32		cell[ 5 ], offset = 0, length;
-    UInt32		endCell[ 5 ];
-    UInt32		*range;
-    UInt32		*lookRange;
-    UInt32		*startRange;
-    UInt32		*endRanges;
-    bool		ok = true;
-    SInt32		diff, endDiff;
-
-    IODTPersistent	*persist;
+    UInt32				childSizeCells, childAddressCells;
+    UInt32				childCells;
+    UInt32				cell[ 5 ], offset = 0, length;
+    UInt32				*range;
+    UInt32				*endRanges;
+    bool				ok = true;
+    SInt32				diff;
+
+    IODTPersistent				*persist;
     IODTCompareAddressCellFunc	compare;
 
     IODTGetCellCounts( regEntry, &childSizeCells, &childAddressCells );
@@ -965,85 +852,64 @@
     bcopy( cellsIn, cell, 4 * childCells );
     if( childSizeCells > 1)
         *len = IOPhysical32( cellsIn[ childAddressCells ],
-                             cellsIn[ childAddressCells + 1 ] );
+			cellsIn[ childAddressCells + 1 ] );
     else
         *len = IOPhysical32( 0, cellsIn[ childAddressCells ] );
 
-    do
-    {
-	prop = OSDynamicCast( OSData, regEntry->getProperty( gIODTRangeKey ));
-	if( 0 == prop) {
-	    /* end of the road */
-	    *phys = IOPhysical32( 0,  cell[ childAddressCells - 1 ] + offset);
-	    break;
-	}
-
-	parent = regEntry->getParentEntry( gIODTPlane );
-	IODTGetCellCounts( parent, &sizeCells, &addressCells );
-
-	if( (length = prop->getLength())) {
-	    // search
-	    startRange = (UInt32 *) prop->getBytesNoCopy();
-	    range = startRange;
-	    endRanges = range + (length / 4);
-
-	    prop = (OSData *) regEntry->getProperty( gIODTPersistKey );
-	    if( prop) {
-		persist = (IODTPersistent *) prop->getBytesNoCopy();
-		compare = persist->compareFunc;
-	    } else
-		compare = DefaultCompare;
-
-	    for( ok = false;
-		 range < endRanges;
-		 range += (childCells + addressCells) ) {
-
-		// is cell start >= range start?
-		diff = (*compare)( childAddressCells, cell, range );
-		if( diff < 0)
-		    continue;
-
-		ok = (0 == cell[childCells - 1]);
-		if (!ok)
-		{
-		    // search for cell end
-		    bcopy(cell, endCell, childAddressCells * sizeof(UInt32));
-		    endCell[childAddressCells - 1] += cell[childCells - 1] - 1;
-		    lookRange = startRange;
-		    for( ;
-			 lookRange < endRanges;
-			 lookRange += (childCells + addressCells) )
-		     {
-			// is cell >= range start?
-			endDiff = (*compare)( childAddressCells, endCell, lookRange );
-			if( endDiff < 0)
-			    continue;
-			if ((endDiff - cell[childCells - 1] + 1 + lookRange[childAddressCells + addressCells - 1])
-			    == (diff + range[childAddressCells + addressCells - 1]))
-			{
-			    ok = true;
-			    break;
-			}
-		    }
-		    if (!ok)
-			continue;
-		}
-		offset += diff;
-		break;
-	    }
-
-	    // Get the physical start of the range from our parent
-	    bcopy( range + childAddressCells, cell, 4 * addressCells );
-	    bzero( cell + addressCells, 4 * sizeCells );
-
-	} /* else zero length range => pass thru to parent */
-
-	regEntry		= parent;
+    do {
+        prop = OSDynamicCast( OSData, regEntry->getProperty( gIODTRangeKey ));
+        if( 0 == prop) {
+	    	/* end of the road */
+            *phys = IOPhysical32( 0,  cell[ childAddressCells - 1 ] + offset);
+            break;
+        }
+
+        parent = regEntry->getParentEntry( gIODTPlane );
+		IODTGetCellCounts( parent, &sizeCells, &addressCells );
+
+        if( (length = prop->getLength())) {
+            // search
+            range = (UInt32 *) prop->getBytesNoCopy();
+            endRanges = range + (length / 4);
+
+            prop = (OSData *) regEntry->getProperty( gIODTPersistKey );
+            if( prop) {
+                persist = (IODTPersistent *) prop->getBytesNoCopy();
+                compare = persist->compareFunc;
+            } else
+                compare = DefaultCompare;
+
+            for( ok = false;
+                 range < endRanges;
+                 range += (childCells + addressCells) ) {
+
+                // is cell >= range start?
+                diff = (*compare)( childAddressCells, cell, range );
+                if( diff < 0)
+                    continue;
+                    
+                // is cell + size <= range end?
+                if( (diff + cell[ childCells - 1 ])
+                        > range[ childCells + addressCells - 1 ])
+                    continue;
+
+                offset += diff;
+                ok = true;
+                break;
+            }
+
+            // Get the physical start of the range from our parent
+            bcopy( range + childAddressCells, cell, 4 * addressCells );
+            bzero( cell + addressCells, 4 * sizeCells );
+
+        } /* else zero length range => pass thru to parent */
+
+	regEntry			= parent;
 	childSizeCells		= sizeCells;
 	childAddressCells	= addressCells;
-	childCells		= childAddressCells + childSizeCells;
-    }
-    while( ok && regEntry);
+	childCells			= childAddressCells + childSizeCells;
+
+    } while( ok && regEntry);
 
     return( ok);
 }
@@ -1066,11 +932,11 @@
     parentEntry = regEntry->getParentEntry( gIODTPlane );
     addressProperty = (OSData *) regEntry->getProperty( addressPropertyName );
     if( (0 == addressProperty) || (0 == parentEntry))
-        return( 0);
+		return( 0);
 
     IODTGetCellCounts( parentEntry, &sizeCells, &addressCells );
     if( 0 == sizeCells)
-        return( 0);
+		return( 0);
 
     cells = sizeCells + addressCells;
     reg = (UInt32 *) addressProperty->getBytesNoCopy();
@@ -1078,20 +944,20 @@
 
     array = OSArray::withCapacity( 1 );
     if( 0 == array)
-        return( 0);
+		return( 0);
 
     for( i = 0; i < num; i++) {
-        if( IODTResolveAddressCell( parentEntry, reg, &phys, &len )) {
-            range = 0;
-            if( parent)
-                range = IODeviceMemory::withSubRange( parent,
-                        phys - parent->getPhysicalAddress(), len );
-            if( 0 == range)
-                range = IODeviceMemory::withRange( phys, len );
-            if( range)
-                array->setObject( range );
-        }
-        reg += cells;
+		if( IODTResolveAddressCell( parentEntry, reg, &phys, &len )) {
+			range = 0;
+			if( parent)
+				range = IODeviceMemory::withSubRange( parent,
+					phys - parent->getPhysicalAddress(), len );
+			if( 0 == range)
+				range = IODeviceMemory::withRange( phys, len );
+			if( range)
+				array->setObject( range );
+		}
+		reg += cells;
     }
 
     regEntry->setProperty( gIODeviceMemoryKey, array);
@@ -1113,7 +979,7 @@
     prop = (OSData *) parent->getProperty( gIODTPersistKey );
     if( prop) {
         persist = (IODTPersistent *) prop->getBytesNoCopy();
-        (*persist->locationFunc)( regEntry, busNum, deviceNum, functionNum );
+		(*persist->locationFunc)( regEntry, busNum, deviceNum, functionNum );
     } else {
         prop = (OSData *) regEntry->getProperty( "reg" );
         *functionNum	= 0;
@@ -1124,7 +990,7 @@
         } else {
             *busNum 	= 0;
             *deviceNum 	= 0;
-        }
+		}
     }
     return;
 }
@@ -1151,14 +1017,14 @@
 
         IODTGetNVLocation( parent, regEntry,
 			&busNum, &deviceNum, &functionNum );
-        if( level)
-            bridgeDevices |= ((deviceNum & 0x1f) << ((level - 1) * 5));
-        else {
+		if( level)
+			bridgeDevices |= ((deviceNum & 0x1f) << ((level - 1) * 5));
+		else {
             hdr->busNum 	= busNum;
             hdr->deviceNum 	= deviceNum;
             hdr->functionNum 	= functionNum;
-        }
-        regEntry = parent;
+		}
+		regEntry = parent;
     }
     hdr->bridgeCount 	= level - 2;
     hdr->bridgeDevices 	= bridgeDevices;
@@ -1179,43 +1045,38 @@
 
     data = (OSData *) regEntry->getProperty("AAPL,slot-name");
     if( data)
-        return( data);
+		return( data);
     parent = regEntry->getParentEntry( gIODTPlane );
     if( !parent)
-        return( 0 );
+		return( 0 );
     data = OSDynamicCast( OSData, parent->getProperty("slot-names"));
     if( !data)
-        return( 0 );
+		return( 0 );
     if( data->getLength() <= 4)
-        return( 0 );
+		return( 0 );
 
     bits = (UInt32 *) data->getBytesNoCopy();
     mask = *bits;
     if( (0 == (mask & (1 << deviceNumber))))
-        return( 0 );
+		return( 0 );
 
     names = (char *)(bits + 1);
     lastName = names + (data->getLength() - 4);
 
     for( i = 0; (i <= deviceNumber) && (names < lastName); i++ ) {
 
-        if( mask & (1 << i)) {
+		if( mask & (1 << i)) {
             if( i == deviceNumber) {
-                data = OSData::withBytesNoCopy( names, 1 + strlen( names));
-                if( data) {
-                    regEntry->setProperty("AAPL,slot-name", data);
-                    ret = data;
-                    data->release();
-                }
+				data = OSData::withBytesNoCopy( names, 1 + strlen( names));
+				if( data) {
+					regEntry->setProperty("AAPL,slot-name", data);
+					ret = data;
+					data->release();
+				}
             } else
-                names += 1 + strlen( names);
+				names += 1 + strlen( names);
         }
     }
 
     return( ret );
 }
-
-extern "C" IOReturn IONDRVLibrariesInitialize( IOService * provider )
-{
-    return( kIOReturnUnsupported );
-}