1 /* 2 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * Copyright (c) 1998 Apple Computer, Inc. All rights reserved. 30 * 31 * HISTORY 32 * 33 */ 34 35 #ifndef _IOKIT_IODEVICETREE_H 36 #define _IOKIT_IODEVICETREE_H 37 38 #include <IOKit/IORegistryEntry.h> 39 #include <libkern/c++/OSData.h> 40 #include <libkern/c++/OSPtr.h> 41 42 class IODeviceMemory; 43 class IOService; 44 45 extern const IORegistryPlane * gIODTPlane; 46 47 extern const OSSymbol * gIODTPHandleKey; 48 49 extern const OSSymbol * gIODTCompatibleKey; 50 extern const OSSymbol * gIODTTypeKey; 51 extern const OSSymbol * gIODTModelKey; 52 extern const OSSymbol * gIODTBridgeModelKey; 53 extern const OSSymbol * gIODTTargetTypeKey; 54 55 extern const OSSymbol * gIODTAAPLInterruptsKey; 56 extern const OSSymbol * gIODTDefaultInterruptController; 57 extern const OSSymbol * gIODTNWInterruptMappingKey; 58 59 LIBKERN_RETURNS_NOT_RETAINED IORegistryEntry * IODeviceTreeAlloc( void * dtTop ); 60 61 62 bool IODTMatchNubWithKeys( IORegistryEntry * nub, 63 const char * keys ); 64 65 bool IODTCompareNubName( const IORegistryEntry * regEntry, 66 OSString * name, 67 LIBKERN_RETURNS_RETAINED_ON_NONZERO OSString ** matchingName ); 68 bool IODTCompareNubName( const IORegistryEntry * regEntry, 69 OSString * name, 70 OSSharedPtr<OSString>& matchingName ); 71 72 enum { 73 kIODTRecursive = 0x00000001, 74 kIODTExclusive = 0x00000002 75 }; 76 77 OSCollectionIterator * IODTFindMatchingEntries( IORegistryEntry * from, 78 IOOptionBits options, const char * keys ); 79 80 #if !defined(__arm64__) 81 typedef SInt32 (*IODTCompareAddressCellFunc) 82 (UInt32 cellCount, UInt32 left[], UInt32 right[]); 83 #else 84 typedef SInt64 (*IODTCompareAddressCellFunc) 85 (UInt32 cellCount, UInt32 left[], UInt32 right[]); 86 #endif 87 88 typedef void (*IODTNVLocationFunc) 89 (IORegistryEntry * entry, 90 UInt8 * busNum, UInt8 * deviceNum, UInt8 * functionNum ); 91 92 void IODTSetResolving( IORegistryEntry * regEntry, 93 IODTCompareAddressCellFunc compareFunc, 94 IODTNVLocationFunc locationFunc ); 95 96 void IODTGetCellCounts( IORegistryEntry * regEntry, 97 UInt32 * sizeCount, UInt32 * addressCount); 98 99 bool IODTResolveAddressCell( IORegistryEntry * regEntry, 100 UInt32 cellsIn[], 101 IOPhysicalAddress * phys, IOPhysicalLength * len ); 102 103 LIBKERN_RETURNS_NOT_RETAINED OSArray * 104 IODTResolveAddressing( IORegistryEntry * regEntry, 105 const char * addressPropertyName, 106 IODeviceMemory * parent ); 107 108 struct IONVRAMDescriptor { 109 unsigned int format:4; 110 unsigned int marker:1; 111 unsigned int bridgeCount:3; 112 unsigned int busNum:2; 113 unsigned int bridgeDevices:6 * 5; 114 unsigned int functionNum:3; 115 unsigned int deviceNum:5; 116 } __attribute__((aligned(2), packed)); 117 118 IOReturn IODTMakeNVDescriptor( IORegistryEntry * regEntry, 119 IONVRAMDescriptor * hdr ); 120 121 LIBKERN_RETURNS_NOT_RETAINED OSData * 122 IODTFindSlotName( IORegistryEntry * regEntry, UInt32 deviceNumber ); 123 124 const OSSymbol * IODTInterruptControllerName( 125 IORegistryEntry * regEntry ); 126 127 bool IODTMapInterrupts( IORegistryEntry * regEntry ); 128 129 enum { 130 kIODTInterruptShared = 0x00000001 131 }; 132 IOReturn IODTGetInterruptOptions( IORegistryEntry * regEntry, int source, IOOptionBits * options ); 133 134 #ifdef __cplusplus 135 extern "C" { 136 #endif 137 138 IOReturn IONDRVLibrariesInitialize( IOService * provider ); 139 140 #ifdef __cplusplus 141 } 142 #endif 143 144 #endif /* _IOKIT_IODEVICETREE_H */ 145