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