1 | /* |
2 | * Copyright (c) 1998-2010 Apple 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 <libkern/c++/OSUnserialize.h> |
30 | #include <libkern/c++/OSKext.h> |
31 | #include <libkern/version.h> |
32 | #include <IOKit/IORegistryEntry.h> |
33 | #include <IOKit/IODeviceTreeSupport.h> |
34 | #include <IOKit/IOCatalogue.h> |
35 | #include <IOKit/IOUserClient.h> |
36 | #include <IOKit/IOMemoryDescriptor.h> |
37 | #include <IOKit/IOPlatformExpert.h> |
38 | #include <IOKit/IOLib.h> |
39 | #include <IOKit/IOKitKeys.h> |
40 | #include <IOKit/IOKitDebug.h> |
41 | #include <IOKit/pwr_mgt/RootDomain.h> |
42 | #include <IOKit/pwr_mgt/IOPMinformeeList.h> |
43 | #include <IOKit/IOStatisticsPrivate.h> |
44 | #include <IOKit/IOKitKeysPrivate.h> |
45 | #include <IOKit/IOInterruptAccountingPrivate.h> |
46 | #include <IOKit/assert.h> |
47 | #include <sys/conf.h> |
48 | |
49 | #include "IOKitKernelInternal.h" |
50 | |
51 | const OSSymbol * gIOProgressBackbufferKey; |
52 | OSSet * gIORemoveOnReadProperties; |
53 | |
54 | extern "C" { |
55 | |
56 | void StartIOKit( void * p1, void * p2, void * p3, void * p4 ); |
57 | void IORegistrySetOSBuildVersion(char * build_version); |
58 | void IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme); |
59 | |
60 | extern void OSlibkernInit (void); |
61 | |
62 | void iokit_post_constructor_init(void); |
63 | |
64 | #include <kern/clock.h> |
65 | #include <sys/time.h> |
66 | |
67 | void IOKitInitializeTime( void ) |
68 | { |
69 | mach_timespec_t t; |
70 | |
71 | t.tv_sec = 30; |
72 | t.tv_nsec = 0; |
73 | IOService::waitForService( |
74 | IOService::resourceMatching("IORTC" ), &t ); |
75 | #if defined(__i386__) || defined(__x86_64__) |
76 | IOService::waitForService( |
77 | IOService::resourceMatching("IONVRAM" ), &t ); |
78 | #endif |
79 | |
80 | clock_initialize_calendar(); |
81 | } |
82 | |
83 | void iokit_post_constructor_init(void) |
84 | { |
85 | IORegistryEntry * root; |
86 | OSObject * obj; |
87 | |
88 | IOCPUInitialize(); |
89 | root = IORegistryEntry::initialize(); |
90 | assert( root ); |
91 | IOService::initialize(); |
92 | IOCatalogue::initialize(); |
93 | IOStatistics::initialize(); |
94 | OSKext::initialize(); |
95 | IOUserClient::initialize(); |
96 | IOMemoryDescriptor::initialize(); |
97 | IORootParent::initialize(); |
98 | |
99 | // Initializes IOPMinformeeList class-wide shared lock |
100 | IOPMinformeeList::getSharedRecursiveLock(); |
101 | |
102 | obj = OSString::withCString( version ); |
103 | assert( obj ); |
104 | if( obj ) { |
105 | root->setProperty( kIOKitBuildVersionKey, obj ); |
106 | obj->release(); |
107 | } |
108 | obj = IOKitDiagnostics::diagnostics(); |
109 | if( obj ) { |
110 | root->setProperty( kIOKitDiagnosticsKey, obj ); |
111 | obj->release(); |
112 | } |
113 | } |
114 | |
115 | /***** |
116 | * Pointer into bootstrap KLD segment for functions never used past startup. |
117 | */ |
118 | void (*record_startup_extensions_function)(void) = 0; |
119 | |
120 | void StartIOKit( void * p1, void * p2, void * p3, void * p4 ) |
121 | { |
122 | IOPlatformExpertDevice * rootNub; |
123 | int debugFlags; |
124 | |
125 | if( PE_parse_boot_argn( "io" , &debugFlags, sizeof (debugFlags) )) |
126 | gIOKitDebug = debugFlags; |
127 | #if DEVELOPMENT || DEBUG |
128 | else gIOKitDebug |= kIOWaitQuietPanics; |
129 | #endif /* DEVELOPMENT || DEBUG */ |
130 | |
131 | if( PE_parse_boot_argn( "iotrace" , &debugFlags, sizeof (debugFlags) )) |
132 | gIOKitTrace = debugFlags; |
133 | |
134 | // Compat for boot-args |
135 | gIOKitTrace |= (gIOKitDebug & kIOTraceCompatBootArgs); |
136 | |
137 | if( PE_parse_boot_argn( "pmtimeout" , &debugFlags, sizeof (debugFlags) )) |
138 | gCanSleepTimeout = debugFlags; |
139 | // |
140 | // Have to start IOKit environment before we attempt to start |
141 | // the C++ runtime environment. At some stage we have to clean up |
142 | // the initialisation path so that OS C++ can initialise independantly |
143 | // of iokit basic service initialisation, or better we have IOLib stuff |
144 | // initialise as basic OS services. |
145 | // |
146 | IOLibInit(); |
147 | OSlibkernInit(); |
148 | devsw_init(); |
149 | |
150 | gIOProgressBackbufferKey = OSSymbol::withCStringNoCopy(kIOProgressBackbufferKey); |
151 | gIORemoveOnReadProperties = OSSet::withObjects((const OSObject **) &gIOProgressBackbufferKey, 1); |
152 | |
153 | interruptAccountingInit(); |
154 | |
155 | rootNub = new IOPlatformExpertDevice; |
156 | |
157 | if( rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) { |
158 | rootNub->attach( 0 ); |
159 | |
160 | /* If the bootstrap segment set up a function to record startup |
161 | * extensions, call it now. |
162 | */ |
163 | if (record_startup_extensions_function) { |
164 | record_startup_extensions_function(); |
165 | } |
166 | |
167 | rootNub->registerService(); |
168 | |
169 | #if !NO_KEXTD |
170 | /* Add a busy count to keep the registry busy until kextd has |
171 | * completely finished launching. This is decremented when kextd |
172 | * messages the kernel after the in-kernel linker has been |
173 | * removed and personalities have been sent. |
174 | */ |
175 | IOService::getServiceRoot()->adjustBusy(1); |
176 | #endif |
177 | } |
178 | } |
179 | |
180 | void |
181 | IORegistrySetOSBuildVersion(char * build_version) |
182 | { |
183 | IORegistryEntry * root = IORegistryEntry::getRegistryRoot(); |
184 | |
185 | if (root) { |
186 | if (build_version) { |
187 | root->setProperty(kOSBuildVersionKey, build_version); |
188 | } else { |
189 | root->removeProperty(kOSBuildVersionKey); |
190 | } |
191 | } |
192 | |
193 | return; |
194 | } |
195 | |
196 | void |
197 | IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme) |
198 | { |
199 | IORegistryEntry * chosen; |
200 | if ((chosen = IORegistryEntry::fromPath(kIODeviceTreePlane ":/chosen" ))) |
201 | { |
202 | chosen->setProperty(kIOProgressBackbufferKey, buffer, size); |
203 | chosen->setProperty(kIOProgressColorThemeKey, theme, 32); |
204 | |
205 | chosen->release(); |
206 | } |
207 | } |
208 | |
209 | }; /* extern "C" */ |
210 | |