xnu-3789.51.2.tar.gz

[apple/xnu.git] / iokit / IOKit / IONVRAM.h

diff --git a/iokit/IOKit/IONVRAM.h b/iokit/IOKit/IONVRAM.h
index a9337bd1d9a3dce91a31f62c51881a72d7af8236..31d5e09671d5065e8d58f46261bf5e959447c4ac 100644 (file)
--- a/iokit/IOKit/IONVRAM.h
+++ b/iokit/IOKit/IONVRAM.h
@@ -1,5 +1,6 @@
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2007-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -29,17 +30,20 @@
 #ifndef _IOKIT_IONVRAM_H
 #define _IOKIT_IONVRAM_H
 
+#ifdef __cplusplus
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOService.h>
 #include <IOKit/IODeviceTreeSupport.h>
 #include <IOKit/nvram/IONVRAMController.h>
-
+#endif /* __cplusplus */
 
 #define kIODTNVRAMOFPartitionName       "common"
 #define kIODTNVRAMXPRAMPartitionName    "APL,MacOS75"
 #define kIODTNVRAMPanicInfoPartitonName "APL,OSXPanic"
 #define kIODTNVRAMFreePartitionName     "wwwwwwwwwwww"
 
+#define MIN_SYNC_NOW_INTERVAL 15*60 /* Minimum 15 Minutes interval mandated */
+
 enum {
   kIODTNVRAMImageSize        = 0x2000,
   kIODTNVRAMXPRAMSize        = 0x0100,
@@ -60,6 +64,8 @@ enum {
   kOFVariablePermKernelOnly
 };
 
+#ifdef __cplusplus
+
 class IODTNVRAM : public IOService
 {
   OSDeclareDefaultStructors(IODTNVRAM);
@@ -68,24 +74,27 @@ private:
   IONVRAMController *_nvramController;
   const OSSymbol    *_registryPropertiesKey;
   UInt8             *_nvramImage;
-  bool              _nvramImageDirty;
+  __unused bool     _nvramImageDirty;
   UInt32            _ofPartitionOffset;
   UInt32            _ofPartitionSize;
   UInt8             *_ofImage;
-  bool              _ofImageDirty;
+  __unused bool     _ofImageDirty;
   OSDictionary      *_ofDict;
   OSDictionary      *_nvramPartitionOffsets;
   OSDictionary      *_nvramPartitionLengths;
-  UInt32            _xpramPartitionOffset;
-  UInt32            _xpramPartitionSize;
-  UInt8             *_xpramImage;
-  UInt32            _nrPartitionOffset;
-  UInt32            _nrPartitionSize;
-  UInt8             *_nrImage;
+  UInt32            _resv0 __unused;
+  UInt32            _resv1 __unused;
+  IOLock            *_ofLock;
+  UInt32            _resv2 __unused;
+  UInt32            _resv3 __unused;
+  UInt8             *_resv4 __unused;
   UInt32            _piPartitionOffset;
   UInt32            _piPartitionSize;
   UInt8             *_piImage;
   bool              _systemPaniced;
+  SInt32            _lastDeviceSync;
+  bool              _freshInterval;
+  bool              _isProxied;
   
   virtual UInt8 calculatePartitionChecksum(UInt8 *partitionHeader);
   virtual IOReturn initOFVariables(void);
@@ -125,19 +134,24 @@ private:
                                           const OSSymbol *name,
                                           OSData *value);
   
+  void initNVRAMImage(void);
+  void initProxyData(void);
+  
 public:
-  virtual bool init(IORegistryEntry *old, const IORegistryPlane *plane);
+  virtual bool init(IORegistryEntry *old, const IORegistryPlane *plane) APPLE_KEXT_OVERRIDE;
   
   virtual void registerNVRAMController(IONVRAMController *nvram);
   
   virtual void sync(void);
   
-  virtual bool serializeProperties(OSSerialize *s) const;
-  virtual OSObject *getProperty(const OSSymbol *aKey) const;
-  virtual OSObject *getProperty(const char *aKey) const;
-  virtual bool setProperty(const OSSymbol *aKey, OSObject *anObject);
-  virtual void removeProperty(const OSSymbol *aKey);
-  virtual IOReturn setProperties(OSObject *properties);
+  virtual bool serializeProperties(OSSerialize *s) const APPLE_KEXT_OVERRIDE;
+  virtual OSObject *copyProperty(const OSSymbol *aKey) const APPLE_KEXT_OVERRIDE;
+  virtual OSObject *copyProperty(const char *aKey) const APPLE_KEXT_OVERRIDE;
+  virtual OSObject *getProperty(const OSSymbol *aKey) const APPLE_KEXT_OVERRIDE;
+  virtual OSObject *getProperty(const char *aKey) const APPLE_KEXT_OVERRIDE;
+  virtual bool setProperty(const OSSymbol *aKey, OSObject *anObject) APPLE_KEXT_OVERRIDE;
+  virtual void removeProperty(const OSSymbol *aKey) APPLE_KEXT_OVERRIDE;
+  virtual IOReturn setProperties(OSObject *properties) APPLE_KEXT_OVERRIDE;
   
   virtual IOReturn readXPRAM(IOByteCount offset, UInt8 *buffer,
                             IOByteCount length);
@@ -162,6 +176,10 @@ public:
                                       IOByteCount length);  
   
   virtual IOByteCount savePanicInfo(UInt8 *buffer, IOByteCount length);
+  virtual bool safeToSync(void);
+  void syncInternal(bool rateLimit);
 };
 
+#endif /* __cplusplus */
+
 #endif /* !_IOKIT_IONVRAM_H */