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
51const OSSymbol * gIOProgressBackbufferKey;
52OSSet * gIORemoveOnReadProperties;
53
54extern "C" {
55
56void StartIOKit( void * p1, void * p2, void * p3, void * p4 );
57void IORegistrySetOSBuildVersion(char * build_version);
58void IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme);
59
60extern void OSlibkernInit (void);
61
62void iokit_post_constructor_init(void);
63
64#include <kern/clock.h>
65#include <sys/time.h>
66
67void 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
83void 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 */
118void (*record_startup_extensions_function)(void) = 0;
119
120void 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
180void
181IORegistrySetOSBuildVersion(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
196void
197IORecordProgressBackbuffer(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