xnu-1228.3.13.tar.gz

[apple/xnu.git] / iokit / IOKit / pwr_mgt / RootDomain.h

diff --git a/iokit/IOKit/pwr_mgt/RootDomain.h b/iokit/IOKit/pwr_mgt/RootDomain.h
index 2605169c399554bee0a0ebe7a932b2ac00eda6e8..c528b8c3eb51ef47dd84e671d43997d72b1967bd 100644 (file)
--- a/iokit/IOKit/pwr_mgt/RootDomain.h
+++ b/iokit/IOKit/pwr_mgt/RootDomain.h
@@ -41,12 +41,15 @@ enum {
     kPCICantSleep                      = 0x00000004
 };
 
+
+
 /* 
  *IOPMrootDomain registry property keys
  */
 #define kRootDomainSupportedFeatures        "Supported Features"
 #define kRootDomainSleepReasonKey           "Last Sleep Reason"
 #define kRootDomainSleepOptionsKey          "Last Sleep Options"
+#define kIOPMRootDomainPowerStatusKey       "Power Status"
 
 /*
  * Possible sleep reasons found under kRootDomainSleepReasonsKey
@@ -115,6 +118,22 @@ public:
     virtual IOReturn setProperties ( OSObject * );
     IOReturn shutdownSystem ( void );
     IOReturn restartSystem ( void );
+
+/*! @function systemPowerEventOccurred
+    @abstract Other drivers may inform IOPMrootDomain of system PM events
+    @discussion systemPowerEventOccurred is a richer alternative to receivePowerNotification()
+        Only Apple-owned kexts should have reason to call systemPowerEventOccurred.
+    @param event An OSSymbol describing the type of power event.
+    @param value A 32-bit integer value associated with the event.
+    @param shouldUpdate indicates whether the root domain should send a notification
+        to interested parties. Pass false if you're calling systemPowerEventOccurred
+        several times in succession; and pass true only on the last invocatino.
+    @result kIOReturnSuccess on success */
+    IOReturn systemPowerEventOccurred(const OSSymbol *event, 
+                                    uint32_t intValue);
+    IOReturn systemPowerEventOccurred(const OSSymbol *event, 
+                                    OSObject *value);
+    
     virtual IOReturn receivePowerNotification (UInt32 msg);
     virtual void setSleepSupported( IOOptionBits flags );
     virtual IOOptionBits getSleepSupported();