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 #include <IOKit/IODeviceMemory.h> 30 #include <IOKit/IOSubMemoryDescriptor.h> 31 32 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 33 34 IODeviceMemory * 35 IODeviceMemory::withRange( 36 IOPhysicalAddress start, 37 IOPhysicalLength length ) 38 { 39 return (IODeviceMemory *) IOMemoryDescriptor::withAddressRange( 40 start, length, kIODirectionNone | kIOMemoryMapperNone, NULL ); 41 } 42 43 44 IODeviceMemory * 45 IODeviceMemory::withSubRange( 46 IODeviceMemory * of, 47 IOPhysicalAddress offset, 48 IOPhysicalLength length ) 49 { 50 return (IODeviceMemory *) IOSubMemoryDescriptor::withSubRange( 51 of, offset, length, kIODirectionNone ); 52 } 53 54 55 OSArray * 56 IODeviceMemory::arrayFromList( 57 InitElement list[], 58 IOItemCount count ) 59 { 60 OSArray * array; 61 IODeviceMemory * range; 62 IOItemCount i; 63 64 array = OSArray::withCapacity( count ); 65 if (NULL == array) { 66 return NULL; 67 } 68 69 for (i = 0; i < count; i++) { 70 range = IODeviceMemory::withRange( list[i].start, list[i].length ); 71 if (range) { 72 range->setTag( list[i].tag ); 73 array->setObject( range); 74 range->release(); 75 } else { 76 array->release(); 77 array = NULL; 78 break; 79 } 80 } 81 82 return array; 83 } 84