#include <pexpert/device_tree.h>
+#if __arm64__
+typedef UInt64 dtptr_t;
+#else
+typedef UInt32 dtptr_t;
+#endif
+
#include <machine/machine_routines.h>
extern "C" {
const IORegistryPlane * gIODTPlane;
-static OSArray * gIODTPHandles;
-static OSArray * gIODTPHandleMap;
+static OSArray * gIODTPHandles;
+static OSArray * gIODTPHandleMap;
+static OSData * gIODTResolvers;
const OSSymbol * gIODTNameKey;
const OSSymbol * gIODTUnitKey;
const OSSymbol * gIODTCompatibleKey;
const OSSymbol * gIODTTypeKey;
const OSSymbol * gIODTModelKey;
+const OSSymbol * gIODTTargetTypeKey;
const OSSymbol * gIODTSizeCellKey;
const OSSymbol * gIODTAddressCellKey;
OSDictionary * gIODTSharedInterrupts;
+static IOLock * gIODTResolversLock;
+
static IORegistryEntry * MakeReferenceTable( DTEntry dtEntry, bool copy );
static void AddPHandle( IORegistryEntry * regEntry );
static void FreePhysicalMemory( vm_offset_t * range );
IORegistryEntry * parent;
IORegistryEntry * child;
IORegistryIterator * regIter;
- DTEntryIterator iter;
+ OpaqueDTEntryIterator iter;
DTEntry dtChild;
DTEntry mapEntry;
OSArray * stack;
gIODTCompatibleKey = OSSymbol::withCStringNoCopy( "compatible" );
gIODTTypeKey = OSSymbol::withCStringNoCopy( "device_type" );
gIODTModelKey = OSSymbol::withCStringNoCopy( "model" );
+ gIODTTargetTypeKey = OSSymbol::withCStringNoCopy( "target-type" );
gIODTSizeCellKey = OSSymbol::withCStringNoCopy( "#size-cells" );
gIODTAddressCellKey = OSSymbol::withCStringNoCopy( "#address-cells" );
gIODTRangeKey = OSSymbol::withCStringNoCopy( "ranges" );
gIODTPHandles = OSArray::withCapacity( 1 );
gIODTPHandleMap = OSArray::withCapacity( 1 );
+ gIODTResolvers = OSData::withCapacity(16);
+
+ gIODTResolversLock = IOLockAlloc();
gIODTInterruptCellKey
= OSSymbol::withCStringNoCopy("#interrupt-cells");
assert( gIODTDefaultInterruptController && gIODTNWInterruptMappingKey
&& gIODTAAPLInterruptsKey
&& gIODTPHandleKey && gIODTInterruptParentKey
- && gIODTPHandles && gIODTPHandleMap
+ && gIODTPHandles && gIODTPHandleMap && gIODTResolvers && gIODTResolversLock
&& gIODTInterruptCellKey
);
parent = MakeReferenceTable( (DTEntry)dtTop, freeDT );
stack = OSArray::withObjects( (const OSObject **) &parent, 1, 10 );
- DTCreateEntryIterator( (DTEntry)dtTop, &iter );
+ DTInitEntryIterator( (DTEntry)dtTop, &iter );
do {
parent = (IORegistryEntry *)stack->getObject( stack->getCount() - 1);
//parent->release();
stack->removeObject( stack->getCount() - 1);
- while( kSuccess == DTIterateEntries( iter, &dtChild) ) {
+ while( kSuccess == DTIterateEntries( &iter, &dtChild) ) {
child = MakeReferenceTable( dtChild, freeDT );
child->attachToParent( parent, gIODTPlane);
AddPHandle( child );
- if( kSuccess == DTEnterEntry( iter, dtChild)) {
+ if( kSuccess == DTEnterEntry( &iter, dtChild)) {
stack->setObject( parent);
parent = child;
}
}
} while( stack->getCount()
- && (kSuccess == DTExitEntry( iter, &dtChild)));
+ && (kSuccess == DTExitEntry( &iter, &dtChild)));
stack->release();
- DTDisposeEntryIterator( iter);
+ assert(kSuccess != DTExitEntry(&iter, &dtChild));
// parent is now root of the created tree
{
IORegistryEntry *chosen;
OSData *propObj;
- unsigned int *propPtr;
+ dtptr_t *propPtr;
unsigned int propSize;
+ int ret = -1;
chosen = IORegistryEntry::fromPath( "/chosen/memory-map", gIODTPlane );
if ( chosen == 0 ) return -1;
propObj = OSDynamicCast( OSData, chosen->getProperty(key) );
- if ( propObj == 0 ) return -1;
+ if ( propObj == 0 ) goto cleanup;
propSize = propObj->getLength();
- if ( propSize != (2 * sizeof(UInt32)) ) return -1;
+ if ( propSize != (2 * sizeof(dtptr_t)) ) goto cleanup;
- propPtr = (unsigned int *)propObj->getBytesNoCopy();
- if ( propPtr == 0 ) return -1;
+ propPtr = (dtptr_t *)propObj->getBytesNoCopy();
+ if ( propPtr == 0 ) goto cleanup;
- *infoAddr = (void *)propPtr[0] ;
- *infoSize = (int) propPtr[1];
+ *infoAddr = (void *)(uintptr_t) (propPtr[0]);
+ *infoSize = (int) (propPtr[1]);
- return 0;
+ ret = 0;
+
+cleanup:
+ chosen->release();
+
+ return ret;
}
void IODTFreeLoaderInfo( const char *key, void *infoAddr, int infoSize )
chosen = IORegistryEntry::fromPath( "/chosen/memory-map", gIODTPlane );
if ( chosen != 0 ) {
chosen->removeProperty(key);
+ chosen->release();
}
}
}
const OSSymbol *nameKey;
OSData *data;
const OSSymbol *sym;
- DTPropertyIterator dtIter;
+ OpaqueDTPropertyIterator dtIter;
void *prop;
unsigned int propSize;
char *name;
char location[ 32 ];
bool noLocation = true;
+ bool kernelOnly;
regEntry = new IOService;
}
if( regEntry &&
- (kSuccess == DTCreatePropertyIterator( dtEntry, &dtIter))) {
+ (kSuccess == DTInitPropertyIterator( dtEntry, &dtIter))) {
+ kernelOnly = (kSuccess == DTGetProperty(dtEntry, "kernel-only", &prop, &propSize));
propTable = regEntry->getPropertyTable();
- while( kSuccess == DTIterateProperties( dtIter, &name)) {
+ while( kSuccess == DTIterateProperties( &dtIter, &name)) {
if( kSuccess != DTGetProperty( dtEntry, name, &prop, &propSize ))
continue;
}
assert( nameKey && data );
+ if (kernelOnly)
+ data->setSerializable(false);
+
propTable->setObject( nameKey, data);
data->release();
nameKey->release();
regEntry->setLocation( location );
}
}
- DTDisposePropertyIterator( dtIter);
}
return( regEntry);
static bool GetUInt32( IORegistryEntry * regEntry, const OSSymbol * name,
UInt32 * value )
{
- OSData *data;
+ OSObject * obj;
+ OSData * data;
+ bool result;
- if( (data = OSDynamicCast( OSData, regEntry->getProperty( name )))
- && (4 == data->getLength())) {
- *value = *((UInt32 *) data->getBytesNoCopy());
- return( true );
- } else
- return( false );
+ if (!(obj = regEntry->copyProperty(name))) return (false);
+
+ result = ((data = OSDynamicCast(OSData, obj)) && (sizeof(UInt32) == data->getLength()));
+ if (result) *value = *((UInt32 *) data->getBytesNoCopy());
+
+ obj->release();
+ return(result);
}
static IORegistryEntry * IODTFindInterruptParent( IORegistryEntry * regEntry, IOItemCount index )
/*
*/
-static const char *
+static bool
CompareKey( OSString * key,
- const IORegistryEntry * table, const OSSymbol * propName )
+ const IORegistryEntry * table, const OSSymbol * propName,
+ OSString ** matchingName )
{
OSObject *prop;
OSData *data;
OSString *string;
const char *ckey;
UInt32 keyLen;
+ UInt32 nlen;
const char *names;
const char *lastName;
bool wild;
bool matched;
const char *result = 0;
- if( 0 == (prop = table->getProperty( propName )))
- return( 0 );
+ if( 0 == (prop = table->copyProperty( propName ))) return( 0 );
if( (data = OSDynamicCast( OSData, prop ))) {
names = (const char *) data->getBytesNoCopy();
} else if( (string = OSDynamicCast( OSString, prop ))) {
names = string->getCStringNoCopy();
lastName = names + string->getLength() + 1;
- } else
- return( 0 );
+ } else names = 0;
- ckey = key->getCStringNoCopy();
- keyLen = key->getLength();
- wild = ('*' == key->getChar( keyLen - 1 ));
+ if (names) {
+ ckey = key->getCStringNoCopy();
+ keyLen = key->getLength();
+ wild = ('*' == key->getChar( keyLen - 1 ));
- do {
- // for each name in the property
- if( wild)
- matched = (0 == strncmp( ckey, names, keyLen - 1 ));
- else
- matched = (keyLen == strlen( names ))
- && (0 == strncmp( ckey, names, keyLen ));
+ do {
+ // for each name in the property
+ nlen = strnlen(names, lastName - names);
+ if( wild)
+ matched = ((nlen >= (keyLen - 1)) && (0 == strncmp(ckey, names, keyLen - 1)));
+ else
+ matched = (keyLen == nlen) && (0 == strncmp(ckey, names, keyLen));
+
+ if( matched)
+ result = names;
- if( matched)
- result = names;
+ names = names + nlen + 1;
- names = names + strlen( names) + 1;
+ } while( (names < lastName) && (false == matched));
+ }
+
+ if (result && matchingName) *matchingName = OSString::withCString( result );
- } while( (names < lastName) && (false == matched));
+ if (prop) prop->release();
- return( result);
+ return (result != 0);
}
bool IODTCompareNubName( const IORegistryEntry * regEntry,
OSString * name, OSString ** matchingName )
{
- const char *result;
- bool matched;
-
- matched = (0 != (result = CompareKey( name, regEntry, gIODTNameKey)))
- || (0 != (result = CompareKey( name, regEntry, gIODTCompatibleKey)))
- || (0 != (result = CompareKey( name, regEntry, gIODTTypeKey)))
- || (0 != (result = CompareKey( name, regEntry, gIODTModelKey)));
+ bool matched;
- if( result && matchingName)
- *matchingName = OSString::withCString( result );
+ matched = CompareKey( name, regEntry, gIODTNameKey, matchingName)
+ || CompareKey( name, regEntry, gIODTCompatibleKey, matchingName)
+ || CompareKey( name, regEntry, gIODTTypeKey, matchingName)
+ || CompareKey( name, regEntry, gIODTModelKey, matchingName);
- return( result != 0 );
+ return (matched);
}
bool IODTMatchNubWithKeys( IORegistryEntry * regEntry,
}
cIter = OSCollectionIterator::withCollection( result);
- result->release();
+ if (result) result->release();
return( cIter);
}
struct IODTPersistent {
IODTCompareAddressCellFunc compareFunc;
- IODTNVLocationFunc locationFunc;
};
void IODTSetResolving( IORegistryEntry * regEntry,
IODTCompareAddressCellFunc compareFunc,
- IODTNVLocationFunc locationFunc )
+ IODTNVLocationFunc locationFunc __unused )
{
- IODTPersistent persist;
- OSData *prop;
-
- persist.compareFunc = compareFunc;
- persist.locationFunc = locationFunc;
- prop = OSData::withBytes( &persist, sizeof(persist));
- if( !prop)
- return;
-
- prop->setSerializable(false);
- regEntry->setProperty( gIODTPersistKey, prop);
- prop->release();
+ IODTPersistent persist;
+ IODTPersistent * entry;
+ OSNumber * num;
+ unsigned int index, count;
+
+ IOLockLock(gIODTResolversLock);
+
+ count = (gIODTResolvers->getLength() / sizeof(IODTPersistent));
+ entry = (typeof(entry)) gIODTResolvers->getBytesNoCopy();
+ for (index = 0; index < count; index++)
+ {
+ if (compareFunc == entry->compareFunc) break;
+ entry++;
+ }
+ if (index == count)
+ {
+ persist.compareFunc = compareFunc;
+ if (!gIODTResolvers->appendBytes(&persist, sizeof(IODTPersistent))) panic("IODTSetResolving");
+ }
+
+ IOLockUnlock(gIODTResolversLock);
+
+ num = OSNumber::withNumber(index, 32);
+ regEntry->setProperty(gIODTPersistKey, num);
+ OSSafeReleaseNULL(num);
+
return;
}
+#if defined(__arm64__)
+static SInt64 DefaultCompare( UInt32 cellCount, UInt32 left[], UInt32 right[] )
+{
+ SInt64 diff = 0;
+
+ if (cellCount == 2) {
+ diff = IOPhysical32(left[1], left[0]) - IOPhysical32(right[1], right[0]);
+ } else if (cellCount == 1) {
+ diff = ( left[0] - right[0] );
+ } else {
+ panic("DefaultCompare only knows how to handle 1 or 2 cells.");
+ }
+
+ return diff;
+}
+#elif defined(__arm__) || defined(__i386__) || defined(__x86_64__)
static SInt32 DefaultCompare( UInt32 cellCount, UInt32 left[], UInt32 right[] )
{
cellCount--;
return( left[ cellCount ] - right[ cellCount ] );
}
+#else
+#error Unknown architecture.
+#endif
+
+static void AddLengthToCells( UInt32 numCells, UInt32 *cells, UInt64 offset)
+{
+ if (numCells == 1)
+ {
+ cells[0] += (UInt32)offset;
+ }
+ else {
+#if defined(__arm64__) || defined(__arm__)
+ UInt64 sum = cells[numCells - 2] + offset;
+ cells[numCells - 2] = (UInt32)sum;
+ if (sum > UINT32_MAX) {
+ cells[numCells - 1] += (UInt32)(sum >> 32);
+ }
+#else
+ UInt64 sum = cells[numCells - 1] + offset;
+ cells[numCells - 1] = (UInt32)sum;
+ if (sum > UINT32_MAX) {
+ cells[numCells - 2] += (UInt32)(sum >> 32);
+ }
+#endif
+ }
+}
+
+static IOPhysicalAddress CellsValue( UInt32 numCells, UInt32 *cells)
+{
+ if (numCells == 1) {
+ return IOPhysical32( 0, cells[0] );
+ } else {
+#if defined(__arm64__) || defined(arm)
+ return IOPhysical32( cells[numCells - 1], cells[numCells - 2] );
+#else
+ return IOPhysical32( cells[numCells - 2], cells[numCells - 1] );
+#endif
+ }
+}
void IODTGetCellCounts( IORegistryEntry * regEntry,
UInt32 * sizeCount, UInt32 * addressCount)
// Range[]: child-addr our-addr child-len
// #cells: child ours child
-bool IODTResolveAddressCell( IORegistryEntry * regEntry,
+bool IODTResolveAddressCell( IORegistryEntry * startEntry,
UInt32 cellsIn[],
- IOPhysicalAddress * phys, IOPhysicalLength * len )
+ IOPhysicalAddress * phys, IOPhysicalLength * lenOut )
{
- IORegistryEntry *parent;
- OSData *prop;
+ IORegistryEntry * parent;
+ IORegistryEntry * regEntry;
+ OSData * prop;
+ OSNumber * num;
+ unsigned int index, count;
// cells in addresses at regEntry
UInt32 sizeCells, addressCells;
// cells in addresses below regEntry
UInt32 childSizeCells, childAddressCells;
UInt32 childCells;
- UInt32 cell[ 8 ], length;
+ UInt32 cell[ 8 ], propLen;
UInt64 offset = 0;
UInt32 endCell[ 8 ];
UInt32 *range;
UInt32 *endRanges;
bool ok = true;
SInt64 diff, diff2, endDiff;
+ UInt64 len, rangeLen;
IODTPersistent *persist;
IODTCompareAddressCellFunc compare;
+ regEntry = startEntry;
IODTGetCellCounts( regEntry, &childSizeCells, &childAddressCells );
childCells = childAddressCells + childSizeCells;
panic("IODTResolveAddressCell: Invalid device tree (%u,%u)", (uint32_t)childAddressCells, (uint32_t)childSizeCells);
bcopy( cellsIn, cell, sizeof(UInt32) * childCells );
- if( childSizeCells > 1)
- *len = IOPhysical32( cellsIn[ childAddressCells + 1],
- cellsIn[ childAddressCells] );
- else
- *len = IOPhysical32( 0, cellsIn[ childAddressCells ] );
+ *lenOut = CellsValue( childSizeCells, cellsIn + childAddressCells );
do
{
- prop = OSDynamicCast( OSData, regEntry->getProperty( gIODTRangeKey ));
- if( 0 == prop) {
+ prop = OSDynamicCast( OSData, regEntry->getProperty( gIODTRangeKey ));
+ if( 0 == prop) {
/* end of the road */
- if (childAddressCells == 2) {
- *phys = IOPhysical32( cell[ childAddressCells - 1 ], cell [ childAddressCells - 2 ]);
- } else {
- *phys = IOPhysical32( 0, cell[ childAddressCells - 1 ]);
- }
+ *phys = CellsValue( childAddressCells, cell );
*phys += offset;
- break;
- }
+ if (regEntry != startEntry) regEntry->release();
+ break;
+ }
+
+ parent = regEntry->copyParentEntry( gIODTPlane );
+ IODTGetCellCounts( parent, &sizeCells, &addressCells );
- parent = regEntry->getParentEntry( gIODTPlane );
- IODTGetCellCounts( parent, &sizeCells, &addressCells );
-
- if( (length = prop->getLength())) {
- // search
- startRange = (UInt32 *) prop->getBytesNoCopy();
- range = startRange;
- endRanges = range + (length / sizeof(UInt32));
-
- prop = (OSData *) regEntry->getProperty( gIODTPersistKey );
- if( prop) {
- persist = (IODTPersistent *) prop->getBytesNoCopy();
- compare = persist->compareFunc;
- } else if (addressCells == childAddressCells) {
- compare = DefaultCompare;
- } else {
- panic("There is no mixed comparison function yet...");
+ if( (propLen = prop->getLength())) {
+ // search
+ startRange = (UInt32 *) prop->getBytesNoCopy();
+ range = startRange;
+ endRanges = range + (propLen / sizeof(UInt32));
+
+ compare = NULL;
+ num = OSDynamicCast(OSNumber, regEntry->getProperty(gIODTPersistKey));
+ if (num)
+ {
+ IOLockLock(gIODTResolversLock);
+ index = num->unsigned32BitValue();
+ count = gIODTResolvers->getLength() / sizeof(IODTPersistent);
+ if (index < count)
+ {
+ persist = ((IODTPersistent *) gIODTResolvers->getBytesNoCopy()) + index;
+ compare = persist->compareFunc;
+ }
+ IOLockUnlock(gIODTResolversLock);
+ }
+
+ if (!compare && (addressCells == childAddressCells)) {
+ compare = DefaultCompare;
}
+ if (!compare) {
+ panic("There is no mixed comparison function yet...");
+ }
- for( ok = false;
- range < endRanges;
- range += (childCells + addressCells) ) {
+ for( ok = false;
+ range < endRanges;
+ range += (childCells + addressCells) ) {
- // is cell start within range?
- diff = (*compare)( childAddressCells, cell, range );
+ // is cell start within range?
+ diff = (*compare)( childAddressCells, cell, range );
- if (childAddressCells > sizeof(endCell)/sizeof(endCell[0]))
- panic("IODTResolveAddressCell: Invalid device tree (%u)", (uint32_t)childAddressCells);
+ if (childAddressCells > sizeof(endCell)/sizeof(endCell[0]))
+ panic("IODTResolveAddressCell: Invalid device tree (%u)", (uint32_t)childAddressCells);
- bcopy(range, endCell, childAddressCells * sizeof(UInt32));
+ bcopy(range, endCell, childAddressCells * sizeof(UInt32));
- if (childAddressCells == 2) {
- uint64_t sum = endCell[childAddressCells - 2] + IOPhysical32(range[childCells + addressCells - 1], range[childCells + addressCells - 2]);
- endCell[childAddressCells - 2] = (uint32_t)(sum & 0x00000000FFFFFFFFULL);
- if (sum > UINT32_MAX) {
- endCell[childAddressCells - 1] += (uint32_t)((sum & 0xFFFFFFFF00000000ULL) >> 32);
- }
- } else {
- endCell[childAddressCells - 1] += range[childCells + addressCells - 1];
- }
+ rangeLen = CellsValue(childSizeCells, range + childAddressCells + addressCells);
+ AddLengthToCells(childAddressCells, endCell, rangeLen);
- diff2 = (*compare)( childAddressCells, cell, endCell );
+ diff2 = (*compare)( childAddressCells, cell, endCell );
- if ((diff < 0) || (diff2 >= 0))
- continue;
+ // if start of cell < start of range, or end of range >= start of cell, skip
+ if ((diff < 0) || (diff2 >= 0))
+ continue;
- ok = (0 == cell[childCells - 1]);
- if (!ok)
- {
- // search for cell end
- bcopy(cell, endCell, childAddressCells * sizeof(UInt32));
-
- if (childSizeCells == 2) {
- uint64_t sum;
- sum = endCell[childAddressCells - 2] + IOPhysical32(cell[childCells - 1], cell[childCells - 2]) - 1;
- endCell[childAddressCells - 2] = (uint32_t)(sum & 0x00000000FFFFFFFFULL);
- if (sum > UINT32_MAX) {
- endCell[childAddressCells - 1] += (uint32_t)((sum & 0xFFFFFFFF00000000ULL) >> 32);
- }
- } else {
- 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;
- }
+ len = CellsValue(childSizeCells, cell + childAddressCells);
+ ok = (0 == len);
+
+ if (!ok)
+ {
+ // search for cell end
+ bcopy(cell, endCell, childAddressCells * sizeof(UInt32));
- if (addressCells + sizeCells > sizeof(cell)/sizeof(cell[0]))
- panic("IODTResolveAddressCell: Invalid device tree (%u, %u)", (uint32_t)addressCells, (uint32_t)sizeCells);
+ AddLengthToCells(childAddressCells, endCell, len - 1);
- // Get the physical start of the range from our parent
- bcopy( range + childAddressCells, cell, sizeof(UInt32) * addressCells );
- bzero( cell + addressCells, sizeof(UInt32) * sizeCells );
+ for( lookRange = startRange;
+ lookRange < endRanges;
+ lookRange += (childCells + addressCells) )
+ {
+ // make sure end of cell >= range start
+ endDiff = (*compare)( childAddressCells, endCell, lookRange );
+ if( endDiff < 0)
+ continue;
+
+ UInt64 rangeStart = CellsValue(addressCells, range + childAddressCells);
+ UInt64 lookRangeStart = CellsValue(addressCells, lookRange + childAddressCells);
+ if ((endDiff - len + 1 + lookRangeStart) == (diff + rangeStart))
+ {
+ ok = true;
+ break;
+ }
+ }
+ if (!ok)
+ continue;
+ }
+ offset += diff;
+ break;
+ }
- } /* else zero length range => pass thru to parent */
+ if (addressCells + sizeCells > sizeof(cell)/sizeof(cell[0]))
+ panic("IODTResolveAddressCell: Invalid device tree (%u, %u)", (uint32_t)addressCells, (uint32_t)sizeCells);
- regEntry = parent;
- childSizeCells = sizeCells;
- childAddressCells = addressCells;
- childCells = childAddressCells + childSizeCells;
+ // Get the physical start of the range from our parent
+ bcopy( range + childAddressCells, cell, sizeof(UInt32) * addressCells );
+ bzero( cell + addressCells, sizeof(UInt32) * sizeCells );
+
+ } /* else zero length range => pass thru to parent */
+
+ if (regEntry != startEntry) regEntry->release();
+ regEntry = parent;
+ childSizeCells = sizeCells;
+ childAddressCells = addressCells;
+ childCells = childAddressCells + childSizeCells;
}
while( ok && regEntry);
OSArray *array;
IODeviceMemory *range;
- parentEntry = regEntry->getParentEntry( gIODTPlane );
- addressProperty = (OSData *) regEntry->getProperty( addressPropertyName );
- if( (0 == addressProperty) || (0 == parentEntry))
- return( 0);
-
- IODTGetCellCounts( parentEntry, &sizeCells, &addressCells );
- if( 0 == sizeCells)
- return( 0);
-
- cells = sizeCells + addressCells;
- reg = (UInt32 *) addressProperty->getBytesNoCopy();
- num = addressProperty->getLength() / (4 * cells);
-
- array = OSArray::withCapacity( 1 );
- if( 0 == array)
- return( 0);
-
- for( i = 0; i < num; i++) {
- if( IODTResolveAddressCell( parentEntry, reg, &phys, &len )) {
- range = 0;
- if( parent)
- range = IODeviceMemory::withSubRange( parent,
- phys - parent->getPhysicalSegment(0, 0, kIOMemoryMapperNone), len );
- if( 0 == range)
- range = IODeviceMemory::withRange( phys, len );
- if( range)
- array->setObject( range );
+ array = 0;
+ do
+ {
+ parentEntry = regEntry->copyParentEntry( gIODTPlane );
+ addressProperty = (OSData *) regEntry->getProperty( addressPropertyName );
+ if( (0 == addressProperty) || (0 == parentEntry)) break;
+
+ IODTGetCellCounts( parentEntry, &sizeCells, &addressCells );
+ if( 0 == sizeCells) break;
+
+ cells = sizeCells + addressCells;
+ reg = (UInt32 *) addressProperty->getBytesNoCopy();
+ num = addressProperty->getLength() / (4 * cells);
+
+ array = OSArray::withCapacity( 1 );
+ if( 0 == array) break;
+
+ for( i = 0; i < num; i++) {
+ if( IODTResolveAddressCell( parentEntry, reg, &phys, &len )) {
+ range = 0;
+ if( parent)
+ range = IODeviceMemory::withSubRange( parent,
+ phys - parent->getPhysicalSegment(0, 0, kIOMemoryMapperNone), len );
+ if( 0 == range)
+ range = IODeviceMemory::withRange( phys, len );
+ if( range)
+ array->setObject( range );
+ }
+ reg += cells;
}
- reg += cells;
- }
-
- regEntry->setProperty( gIODeviceMemoryKey, array);
- array->release(); /* ??? */
- return( array);
-}
-
-static void IODTGetNVLocation(
- IORegistryEntry * parent,
- IORegistryEntry * regEntry,
- UInt8 * busNum, UInt8 * deviceNum, UInt8 * functionNum )
-{
-
- OSData *prop;
- IODTPersistent *persist;
- UInt32 *cell;
-
- prop = (OSData *) parent->getProperty( gIODTPersistKey );
- if( prop) {
- persist = (IODTPersistent *) prop->getBytesNoCopy();
- (*persist->locationFunc)( regEntry, busNum, deviceNum, functionNum );
- } else {
- prop = (OSData *) regEntry->getProperty( "reg" );
- *functionNum = 0;
- if( prop) {
- cell = (UInt32 *) prop->getBytesNoCopy();
- *busNum = 3;
- *deviceNum = 0x1f & (cell[ 0 ] >> 24);
- } else {
- *busNum = 0;
- *deviceNum = 0;
- }
+ regEntry->setProperty( gIODeviceMemoryKey, array);
+ array->release(); /* ??? */
}
- return;
-}
+ while (false);
-/*
- * Try to make the same messed up descriptor as Mac OS
- */
+ OSSafeReleaseNULL(parentEntry);
-IOReturn IODTMakeNVDescriptor( IORegistryEntry * regEntry,
- IONVRAMDescriptor * hdr )
-{
- IORegistryEntry *parent;
- UInt32 level;
- UInt32 bridgeDevices;
- UInt8 busNum;
- UInt8 deviceNum;
- UInt8 functionNum;
-
- hdr->format = 1;
- hdr->marker = 0;
-
- for(level = 0, bridgeDevices = 0;
- (parent = regEntry->getParentEntry( gIODTPlane )) && (level < 7); level++ ) {
-
- IODTGetNVLocation( parent, regEntry,
- &busNum, &deviceNum, &functionNum );
- if( level)
- bridgeDevices |= ((deviceNum & 0x1f) << ((level - 1) * 5));
- else {
- hdr->busNum = busNum;
- hdr->deviceNum = deviceNum;
- hdr->functionNum = functionNum;
- }
- regEntry = parent;
- }
- hdr->bridgeCount = level - 2;
- hdr->bridgeDevices = bridgeDevices;
-
- return( kIOReturnSuccess );
+ return (array);
}
OSData * IODTFindSlotName( IORegistryEntry * regEntry, UInt32 deviceNumber )
OSData *ret = 0;
UInt32 *bits;
UInt32 i;
+ size_t nlen;
char *names;
char *lastName;
UInt32 mask;
data = (OSData *) regEntry->getProperty("AAPL,slot-name");
- if( data)
- return( data);
- parent = regEntry->getParentEntry( gIODTPlane );
- if( !parent)
- return( 0 );
- data = OSDynamicCast( OSData, parent->getProperty("slot-names"));
- if( !data)
- return( 0 );
- if( data->getLength() <= 4)
- return( 0 );
-
- bits = (UInt32 *) data->getBytesNoCopy();
- mask = *bits;
- if( (0 == (mask & (1 << deviceNumber))))
- return( 0 );
-
- names = (char *)(bits + 1);
- lastName = names + (data->getLength() - 4);
-
- for( i = 0; (i <= deviceNumber) && (names < lastName); 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();
- }
- } else
- names += 1 + strlen( names);
+ if (data) return (data);
+
+ do
+ {
+ parent = regEntry->copyParentEntry( gIODTPlane );
+ if (!parent) break;
+
+ data = OSDynamicCast( OSData, parent->getProperty("slot-names"));
+ if (!data) break;
+ if (data->getLength() <= 4) break;
+
+ bits = (UInt32 *) data->getBytesNoCopy();
+ mask = *bits;
+ if ((0 == (mask & (1 << deviceNumber)))) break;
+
+ names = (char *)(bits + 1);
+ lastName = names + (data->getLength() - 4);
+
+ for( i = 0; (i <= deviceNumber) && (names < lastName); i++ ) {
+
+ if( mask & (1 << i)) {
+ nlen = 1 + strnlen(names, lastName - names);
+ if( i == deviceNumber) {
+ data = OSData::withBytesNoCopy(names, nlen);
+ if( data) {
+ regEntry->setProperty("AAPL,slot-name", data);
+ ret = data;
+ data->release();
+ }
+ } else
+ names += nlen;
+ }
}
}
+ while (false);
+
+ OSSafeReleaseNULL(parent);
return( ret );
}
projects / apple / xnu.git / blobdiff