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
34IODeviceMemory * IODeviceMemory::withRange(
35 IOPhysicalAddress start,
36 IOPhysicalLength length )
37{
38 return( (IODeviceMemory *) IOMemoryDescriptor::withAddressRange(
39 start, length, kIODirectionNone | kIOMemoryMapperNone, NULL ));
40}
41
42
43IODeviceMemory * IODeviceMemory::withSubRange(
44 IODeviceMemory * of,
45 IOPhysicalAddress offset,
46 IOPhysicalLength length )
47{
48 return( (IODeviceMemory *) IOSubMemoryDescriptor::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
81