xnu-6153.141.1.tar.gz

[apple/xnu.git] / iokit / Kernel / IOStartIOKit.cpp

diff --git a/iokit/Kernel/IOStartIOKit.cpp b/iokit/Kernel/IOStartIOKit.cpp
index 6a32cbcdc83cafc95495619231354efed94c3c50..e64a84a45f81567be72d8d504485db5310033bea 100644 (file)
--- a/iokit/Kernel/IOStartIOKit.cpp
+++ b/iokit/Kernel/IOStartIOKit.cpp
@@ -1,40 +1,33 @@
 /*
 /*

- * Copyright (c) 1998-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2010 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_OSREFERENCE_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.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  *
  *

- * Please obtain a copy of the License at 
- * http://www.opensource.apple.com/apsl/ and read it before using this 
- * file.
+ * 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.

  *
  *

- * 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_LICENSE_OSREFERENCE_HEADER_END@
- */
-/*
- * Copyright (c) 1998,1999 Apple Computer, Inc.  All rights reserved. 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.

  *
  *

- * HISTORY
+ * 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@

  */
 
 #include <libkern/c++/OSUnserialize.h>
  */
 
 #include <libkern/c++/OSUnserialize.h>

+#include <libkern/c++/OSKext.h>

 #include <libkern/version.h>
 #include <IOKit/IORegistryEntry.h>
 #include <IOKit/IODeviceTreeSupport.h>
 #include <libkern/version.h>
 #include <IOKit/IORegistryEntry.h>
 #include <IOKit/IODeviceTreeSupport.h>


@@ -45,145 +38,188 @@
 #include <IOKit/IOLib.h>
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOKitDebug.h>
 #include <IOKit/IOLib.h>
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOKitDebug.h>

-
+#include <IOKit/pwr_mgt/RootDomain.h>
+#include <IOKit/pwr_mgt/IOPMinformeeList.h>
+#include <IOKit/IOStatisticsPrivate.h>
+#include <IOKit/IOKitKeysPrivate.h>
+#include <IOKit/IOInterruptAccountingPrivate.h>

 #include <IOKit/assert.h>
 #include <IOKit/assert.h>

+#include <sys/conf.h>

 
 #include "IOKitKernelInternal.h"
 
 
 #include "IOKitKernelInternal.h"
 

+const OSSymbol * gIOProgressBackbufferKey;
+OSSet *          gIORemoveOnReadProperties;
+

 extern "C" {
 extern "C" {

+void StartIOKit( void * p1, void * p2, void * p3, void * p4 );
+void IORegistrySetOSBuildVersion(char * build_version);
+void IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme);
+
+extern void OSlibkernInit(void);

 
 

-extern void OSlibkernInit (void);
-extern void ml_hpet_cfg(uint32_t, uint32_t);
+void iokit_post_constructor_init(void);

 
 #include <kern/clock.h>
 
 #include <kern/clock.h>

+#include <sys/time.h>

 
 

-void IOKitResetTime( void )
+void
+IOKitInitializeTime( void )

 {
 {

-       mach_timespec_t         t;
+       mach_timespec_t         t;

 
        t.tv_sec = 30;
        t.tv_nsec = 0;
 
        t.tv_sec = 30;
        t.tv_nsec = 0;

+
+// RTC is not present on this target
+#ifndef BCM2837

        IOService::waitForService(
                IOService::resourceMatching("IORTC"), &t );
        IOService::waitForService(
                IOService::resourceMatching("IORTC"), &t );

-#ifndef i386
+#endif
+#if defined(__i386__) || defined(__x86_64__)

        IOService::waitForService(
                IOService::resourceMatching("IONVRAM"), &t );
        IOService::waitForService(
                IOService::resourceMatching("IONVRAM"), &t );

-

 #endif
 
 #endif
 

-    clock_initialize_calendar();
+       clock_initialize_calendar();
+}
+
+void
+iokit_post_constructor_init(void)
+{
+       IORegistryEntry *           root;
+       OSObject *                  obj;
+
+       IOCPUInitialize();
+       root = IORegistryEntry::initialize();
+       assert( root );
+       IOService::initialize();
+       IOCatalogue::initialize();
+       IOStatistics::initialize();
+       OSKext::initialize();
+       IOUserClient::initialize();
+       IOMemoryDescriptor::initialize();
+       IORootParent::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();
+       }

 }
 
 }
 

-// From <osfmk/kern/debug.c>
-extern int debug_mode;
+/*****
+ * Pointer into bootstrap KLD segment for functions never used past startup.
+ */
+void (*record_startup_extensions_function)(void) = NULL;
+
+void
+StartIOKit( void * p1, void * p2, void * p3, void * p4 )
+{
+       IOPlatformExpertDevice *    rootNub;
+       int                         debugFlags;
+
+       if (PE_parse_boot_argn( "io", &debugFlags, sizeof(debugFlags))) {
+               gIOKitDebug = debugFlags;
+       }
+#if DEVELOPMENT || DEBUG
+       else {
+               gIOKitDebug |= kIOWaitQuietPanics;
+       }
+#endif /* DEVELOPMENT || DEBUG */
+
+       if (PE_parse_boot_argn( "iotrace", &debugFlags, sizeof(debugFlags))) {
+               gIOKitTrace = debugFlags;
+       }
+
+       // Compat for boot-args
+       gIOKitTrace |= (gIOKitDebug & kIOTraceCompatBootArgs);
+
+       if (PE_parse_boot_argn( "pmtimeout", &debugFlags, sizeof(debugFlags))) {
+               gCanSleepTimeout = debugFlags;
+       }
+
+       if (PE_parse_boot_argn( "dk", &debugFlags, sizeof(debugFlags))) {
+               gIODKDebug = debugFlags;
+       }
+
+
+       //
+       // 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();
+       IOMachPortInitialize();
+       devsw_init();
+
+       gIOProgressBackbufferKey  = OSSymbol::withCStringNoCopy(kIOProgressBackbufferKey);
+       gIORemoveOnReadProperties = OSSet::withObjects((const OSObject **) &gIOProgressBackbufferKey, 1);
+
+       interruptAccountingInit();
+
+       rootNub = new IOPlatformExpertDevice;
+
+       if (rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) {
+               rootNub->attach( NULL );
+
+               /* If the bootstrap segment set up a function to record startup
+                * extensions, call it now.
+                */
+               if (record_startup_extensions_function) {
+                       record_startup_extensions_function();
+               }
+
+               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 StartIOKit( void * p1, void * p2, void * p3, void * p4 )
+void
+IORegistrySetOSBuildVersion(char * build_version)

 {
 {

-    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();
-
-    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();
-    }
+       IORegistryEntry * root = IORegistryEntry::getRegistryRoot();
+
+       if (root) {
+               if (build_version) {
+                       root->setProperty(kOSBuildVersionKey, build_version);
+               } else {
+                       root->removeProperty(kOSBuildVersionKey);
+               }
+       }
+
+       return;

 }
 
 }
 

+void
+IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme)
+{
+       IORegistryEntry * chosen;
+       if ((chosen = IORegistryEntry::fromPath(kIODeviceTreePlane ":/chosen"))) {
+               chosen->setProperty(kIOProgressBackbufferKey, buffer, size);
+               chosen->setProperty(kIOProgressColorThemeKey, theme, 32);
+
+               chosen->release();
+       }
+}

 }; /* extern "C" */
 }; /* extern "C" */