1 | /* |
2 | * Copyright (c) 2019 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 | extern "C" { |
30 | #include <pexpert/pexpert.h> |
31 | } |
32 | |
33 | #include <IOKit/platform/IOPlatformIO.h> |
34 | |
35 | #define super IOService |
36 | OSDefineMetaClassAndAbstractStructors(IOPlatformIO, IOService); |
37 | |
38 | static IOPlatformIO * platformIOProvider; |
39 | |
40 | bool |
41 | IOPlatformIO::start(IOService * provider) |
42 | { |
43 | if (!super::start(provider)) { |
44 | return false; |
45 | } |
46 | |
47 | if (platformIOProvider == NULL) { |
48 | platformIOProvider = this; |
49 | } |
50 | |
51 | return true; |
52 | } |
53 | |
54 | bool |
55 | PE_handle_platform_error(vm_offset_t far) |
56 | { |
57 | if (platformIOProvider == NULL) { |
58 | return false; |
59 | } else { |
60 | return platformIOProvider->handlePlatformError(far); |
61 | } |
62 | } |
63 | |