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 *
withRange(IOPhysicalAddress start,IOPhysicalLength length)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 *
withSubRange(IODeviceMemory * of,IOPhysicalAddress offset,IOPhysicalLength length)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 *
arrayFromList(InitElement list[],IOItemCount count)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