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1/*
2 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * The contents of this file constitute Original Code as defined in and
7 * are subject to the Apple Public Source License Version 1.1 (the
8 * "License"). You may not use this file except in compliance with the
9 * License. Please obtain a copy of the License at
10 * http://www.apple.com/publicsource and read it before using this file.
11 *
12 * This Original Code and all software distributed under the License are
13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17 * License for the specific language governing rights and limitations
18 * under the License.
19 *
20 * @APPLE_LICENSE_HEADER_END@
21 */
22/*
23 * Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
24 *
25 * HISTORY
26 * 23 Nov 98 sdouglas created.
27 * 30 Sep 99 sdouglas, merged IODeviceMemory into IOMemoryDescriptor.
28 */
29
30#include <IOKit/IODeviceMemory.h>
31
32/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
33
34IODeviceMemory * IODeviceMemory::withRange(
35 IOPhysicalAddress start,
36 IOPhysicalLength length )
37{
38 return( (IODeviceMemory *) IOMemoryDescriptor::withPhysicalAddress(
39 start, length, kIODirectionNone ));
40}
41
42
43IODeviceMemory * IODeviceMemory::withSubRange(
44 IODeviceMemory * of,
45 IOPhysicalAddress offset,
46 IOPhysicalLength length )
47{
48 return( (IODeviceMemory *) IOMemoryDescriptor::withSubRange(
49 of, offset, length, kIODirectionNone ));
50}
51
52
53OSArray * IODeviceMemory::arrayFromList(
54 InitElement list[],
55 IOItemCount count )
56{
57 OSArray * array;
58 IODeviceMemory * range;
59 IOItemCount i;
60
61 array = OSArray::withCapacity( count );
62 if( 0 == array )
63 return( 0);
64
65 for( i = 0; i < count; i++) {
66 range = IODeviceMemory::withRange( list[i].start, list[i].length );
67 if( range) {
68 range->setTag( list[i].tag );
69 array->setObject( range);
70 range->release();
71 } else {
72 array->release();
73 array = 0;
74 break;
75 }
76 }
77
78 return( array );
79}
80