xnu-1699.26.8.tar.gz

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

diff --git a/iokit/Kernel/IOServicePM.cpp b/iokit/Kernel/IOServicePM.cpp
index 11efcab256d367c193e9b0905ad737905dfd9062..4905ec2cd9feace6054e69ae2eaf840951a1f82a 100644 (file)
--- a/iokit/Kernel/IOServicePM.cpp
+++ b/iokit/Kernel/IOServicePM.cpp
@@ -2867,6 +2867,24 @@ IOReturn IOService::setIdleTimerPeriod ( unsigned long period )
     return kIOReturnSuccess;
 }
 
+IOReturn IOService::setIgnoreIdleTimer( bool ignore )
+{
+    if (!initialized)
+               return IOPMNotYetInitialized;
+
+    OUR_PMLog(kIOPMRequestTypeIgnoreIdleTimer, ignore, 0);
+
+    IOPMRequest * request =
+        acquirePMRequest( this, kIOPMRequestTypeIgnoreIdleTimer );
+    if (!request)
+        return kIOReturnNoMemory;
+
+    request->fArg0 = (void *) ignore;
+    submitPMRequest( request );
+
+    return kIOReturnSuccess;
+}
+
 //******************************************************************************
 // [public] nextIdleTimeout
 //
@@ -2987,7 +3005,7 @@ void IOService::idleTimerExpired( void )
                // Device was active - do not drop power, restart timer.
                fDeviceWasActive = false;
        }
-       else
+       else if (!fIdleTimerIgnored)
        {
                // No device activity - drop power state by one level.
                // Decrement the cached tickle power state when possible.
@@ -5414,7 +5432,7 @@ void IOService::pmTellClientWithResponse ( OSObject * object, void * arg )
         getPMRootDomain()->traceDetail( detail );
     }
 
-    retCode = context->us->messageClient(msgType, object, (void *) &notify);
+    retCode = context->us->messageClient(msgType, object, (void *) &notify, sizeof(notify));
     if ( kIOReturnSuccess == retCode )
     {
         if ( 0 == notify.returnValue )
@@ -5732,7 +5750,7 @@ static void tellKernelClientApplier ( OSObject * object, void * arg )
     notify.stateNumber = context->stateNumber;
     notify.stateFlags  = context->stateFlags;
 
-    context->us->messageClient(context->messageType, object, &notify);
+    context->us->messageClient(context->messageType, object, &notify, sizeof(notify));
 
     if ((kIOLogDebugPower & gIOKitDebug) &&
         (OSDynamicCast(_IOServiceInterestNotifier, object)))
@@ -6804,6 +6822,10 @@ void IOService::executePMRequest( IOPMRequest * request )
             }
             break;
 
+        case kIOPMRequestTypeIgnoreIdleTimer:
+            fIdleTimerIgnored = request->fArg0 ? 1 : 0;
+            break;
+
                default:
                        panic("executePMRequest: unknown request type %x", request->getType());
        }