FreeBSD/Linux Kernel Cross Reference
sys/iokit/Kernel/IOStartIOKit.cpp

     /*
      * Copyright (c) 1998-2006 Apple Computer, Inc. All rights reserved.
      *
      * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
      * 
      * This file contains Original Code and/or Modifications of Original Code
      * as defined in and that are subject to the Apple Public Source License
      * Version 2.0 (the 'License'). You may not use this file except in
      * compliance with the License. The rights granted to you under the License
     * may not be used to create, or enable the creation or redistribution of,
     * unlawful or unlicensed copies of an Apple operating system, or to
     * circumvent, violate, or enable the circumvention or violation of, any
     * terms of an Apple operating system software license agreement.
     * 
     * Please obtain a copy of the License at
     * http://www.opensource.apple.com/apsl/ and read it before using this file.
     * 
     * The Original Code and all software distributed under the License are
     * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
     * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
     * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
     * Please see the License for the specific language governing rights and
     * limitations under the License.
     * 
     * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
     */
    /*
     * Copyright (c) 1998,1999 Apple Computer, Inc.  All rights reserved. 
     *
     * HISTORY
     *
     */
    
    #include <libkern/c++/OSUnserialize.h>
    #include <libkern/version.h>
    #include <IOKit/IORegistryEntry.h>
    #include <IOKit/IODeviceTreeSupport.h>
    #include <IOKit/IOCatalogue.h>
    #include <IOKit/IOUserClient.h>
    #include <IOKit/IOMemoryDescriptor.h>
    #include <IOKit/IOPlatformExpert.h>
    #include <IOKit/IOLib.h>
    #include <IOKit/IOKitKeys.h>
    #include <IOKit/IOKitDebug.h>
    #include <IOKit/pwr_mgt/IOPMinformeeList.h>
    
    #include <IOKit/assert.h>
    
    #include "IOKitKernelInternal.h"
    
    extern "C" {
    
    extern void OSlibkernInit (void);
    extern void ml_hpet_cfg(uint32_t, uint32_t);
    
    #include <kern/clock.h>
    #include <sys/time.h>
    
    void IOKitInitializeTime( void )
    {
            mach_timespec_t         t;
    
            t.tv_sec = 30;
            t.tv_nsec = 0;
            IOService::waitForService(
                    IOService::resourceMatching("IORTC"), &t );
    #ifdef ppc
            IOService::waitForService(
                    IOService::resourceMatching("IONVRAM"), &t );
    #endif
    
        clock_initialize_calendar();
    }
    
    void IOKitResetTime( void )
    {
        uint32_t secs, microsecs;
    
        clock_initialize_calendar();
    
        clock_get_calendar_microtime(&secs, &microsecs);
        gIOLastWakeTime.tv_sec  = secs;
        gIOLastWakeTime.tv_usec = microsecs;
    }
    
    
    // From <osfmk/kern/debug.c>
    extern int debug_mode;
    
    void StartIOKit( void * p1, void * p2, void * p3, void * p4 )
    {
        IOPlatformExpertDevice *    rootNub;
        int                         debugFlags;
        IORegistryEntry *           root;
        OSObject *                  obj;
        extern const char *         gIOKernelKmods;
        OSString *                  errorString = NULL; // must release
        OSDictionary *              fakeKmods;  // must release
       OSCollectionIterator *      kmodIter;   // must release
       OSString *                  kmodName;   // don't release
   
       if( PE_parse_boot_arg( "io", &debugFlags ))
           gIOKitDebug = debugFlags;
   
       // Check for the log synchronous bit set in io
       if (gIOKitDebug & kIOLogSynchronous)
           debug_mode = true;
   
       //
       // Have to start IOKit environment before we attempt to start
       // the C++ runtime environment.  At some stage we have to clean up
       // the initialisation path so that OS C++ can initialise independantly
       // of iokit basic service initialisation, or better we have IOLib stuff
       // initialise as basic OS services.
       //
       IOLibInit(); 
       OSlibkernInit();
   
      /*****
       * Declare the fake kmod_info structs for built-in components
       * that must be tracked as independent units for dependencies.
       */
       fakeKmods = OSDynamicCast(OSDictionary,
           OSUnserialize(gIOKernelKmods, &errorString));
   
       if (!fakeKmods) {
           if (errorString) {
               panic("Kernel kmod list syntax error: %s\n",
                       errorString->getCStringNoCopy());
               errorString->release();
           } else {
               panic("Error loading kernel kmod list.\n");
           }
       }
   
       kmodIter = OSCollectionIterator::withCollection(fakeKmods);
       if (!kmodIter) {
           panic("Can't declare in-kernel kmods.\n");
       }
       while ((kmodName = OSDynamicCast(OSString, kmodIter->getNextObject()))) {
   
           OSString * kmodVersion = OSDynamicCast(OSString,
               fakeKmods->getObject(kmodName));
           if (!kmodVersion) {
               panic("Can't declare in-kernel kmod; \"%s\" has "
                   "an invalid version.\n",
                   kmodName->getCStringNoCopy());
           }
   
           // empty version strings get replaced with current kernel version
           const char *vers = (strlen(kmodVersion->getCStringNoCopy())
                                    ? kmodVersion->getCStringNoCopy()
                                    : osrelease);
   
           if (KERN_SUCCESS != kmod_create_fake(kmodName->getCStringNoCopy(), vers)) {
               panic("Failure declaring in-kernel kmod \"%s\".\n",
                   kmodName->getCStringNoCopy());
           }
       }
   
       kmodIter->release();
       fakeKmods->release();
   
   
   
       root = IORegistryEntry::initialize();
       assert( root );
       IOService::initialize();
       IOCatalogue::initialize();
       IOUserClient::initialize();
       IOMemoryDescriptor::initialize();
   
       // Initializes IOPMinformeeList class-wide shared lock
       IOPMinformeeList::getSharedRecursiveLock();
   
       obj = OSString::withCString( version );
       assert( obj );
       if( obj ) {
           root->setProperty( kIOKitBuildVersionKey, obj );
           obj->release();
       }
       obj = IOKitDiagnostics::diagnostics();
       if( obj ) {
           root->setProperty( kIOKitDiagnosticsKey, obj );
           obj->release();
       }
   
       rootNub = new IOPlatformExpertDevice;
   
       if( rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) {
           rootNub->attach( 0 );
   
          /* Enter into the catalogue the drivers
           * provided by BootX.
           */
           gIOCatalogue->recordStartupExtensions();
   
           rootNub->registerService();
   
   #if !NO_KEXTD
          /* Add a busy count to keep the registry busy until kextd has
           * completely finished launching. This is decremented when kextd
           * messages the kernel after the in-kernel linker has been
           * removed and personalities have been sent.
           */
           IOService::getServiceRoot()->adjustBusy(1);
   #endif
       }
   }
   
   void
   IORegistrySetOSBuildVersion(char * build_version)
   {
       IORegistryEntry * root = IORegistryEntry::getRegistryRoot();
   
       if (root) {
           if (build_version) {
               root->setProperty(kOSBuildVersionKey, build_version);
           } else {
               root->removeProperty(kOSBuildVersionKey);
           }
       }
   
       return;
   }
   
   }; /* extern "C" */

Cache object: d9258a3c6d7288ae4acb4cbce7e09bb3