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[apple/xnu.git] / iokit / Kernel / IOFilterInterruptEventSource.cpp
index 708b9c90c679f7eccd5aeb3fefef5b57609307b6..944e84ced357c79514e52884297c68476ff427db 100644 (file)
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2010 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
-/*
-Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
 
-HISTORY
-    1999-4-15  Godfrey van der Linden(gvdl)
-        Created.
-*/
 #include <IOKit/IOFilterInterruptEventSource.h>
 #include <IOKit/IOService.h>
+#include <IOKit/IOKitDebug.h>
 #include <IOKit/IOTimeStamp.h>
 #include <IOKit/IOWorkLoop.h>
 
-#if KDEBUG
+#if IOKITSTATS
+
+#define IOStatisticsInitializeCounter() \
+do { \
+       IOStatistics::setCounterType(IOEventSource::reserved->counter, kIOStatisticsFilterInterruptEventSourceCounter); \
+} while (0)
 
-#define IOTimeTypeStampS(t)                                            \
-do {                                                                   \
-    IOTimeStampStart(IODBG_INTES(t),                                   \
-                     (unsigned int) this, (unsigned int) owner);       \
-} while(0)
+#define IOStatisticsInterrupt() \
+do { \
+       IOStatistics::countInterrupt(IOEventSource::reserved->counter); \
+} while (0)
 
-#define IOTimeTypeStampE(t)                                            \
-do {                                                                   \
-    IOTimeStampEnd(IODBG_INTES(t),                                     \
-                   (unsigned int) this, (unsigned int) owner);         \
-} while(0)
+#else
 
-#define IOTimeStampLatency()                                           \
-do {                                                                   \
-    IOTimeStampEnd(IODBG_INTES(IOINTES_LAT),                           \
-                   (unsigned int) this, (unsigned int) owner);         \
-} while(0)
+#define IOStatisticsInitializeCounter()
+#define IOStatisticsInterrupt()
 
-#else /* !KDEBUG */
-#define IOTimeTypeStampS(t)
-#define IOTimeTypeStampE(t)
-#define IOTimeStampLatency()
-#endif /* KDEBUG */
+#endif /* IOKITSTATS */
 
 #define super IOInterruptEventSource
 
@@ -77,9 +68,9 @@ OSMetaClassDefineReservedUnused(IOFilterInterruptEventSource, 7);
  * Implement the call throughs for the private protection conversion
  */
 bool IOFilterInterruptEventSource::init(OSObject *inOwner,
-                                        Action inAction = 0,
-                                        IOService *inProvider = 0,
-                                        int inIntIndex = 0)
+                                        Action inAction,
+                                        IOService *inProvider,
+                                        int inIntIndex)
 {
     return false;
 }
@@ -98,7 +89,7 @@ IOFilterInterruptEventSource::init(OSObject *inOwner,
                                    Action inAction,
                                    Filter inFilterAction,
                                    IOService *inProvider,
-                                   int inIntIndex = 0)
+                                   int inIntIndex)
 {
     if ( !super::init(inOwner, inAction, inProvider, inIntIndex) )
         return false;
@@ -107,6 +98,9 @@ IOFilterInterruptEventSource::init(OSObject *inOwner,
         return false;
 
     filterAction = inFilterAction;
+
+    IOStatisticsInitializeCounter();
+       
     return true;
 }
 
@@ -115,13 +109,13 @@ IOFilterInterruptEventSource *IOFilterInterruptEventSource
                              Action inAction,
                              Filter inFilterAction,
                              IOService *inProvider,
-                             int inIntIndex = 0)
+                             int inIntIndex)
 {
     IOFilterInterruptEventSource *me = new IOFilterInterruptEventSource;
 
     if (me
     && !me->init(inOwner, inAction, inFilterAction, inProvider, inIntIndex)) {
-        me->free();
+        me->release();
         return 0;
     }
 
@@ -130,13 +124,19 @@ IOFilterInterruptEventSource *IOFilterInterruptEventSource
 
 void IOFilterInterruptEventSource::signalInterrupt()
 {
-IOTimeStampLatency();
-
+       bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+    
+    IOStatisticsInterrupt();
     producerCount++;
-
-IOTimeTypeStampS(IOINTES_SEMA);
+       
+       if (trace)
+           IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+    
     signalWorkAvailable();
-IOTimeTypeStampE(IOINTES_SEMA);
+       
+       if (trace)
+           IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+       
 }
 
 
@@ -152,39 +152,43 @@ IOFilterInterruptEventSource::getFilterAction() const
 void IOFilterInterruptEventSource::normalInterruptOccurred
     (void */*refcon*/, IOService */*prov*/, int /*source*/)
 {
-    bool filterRes;
-
-IOTimeTypeStampS(IOINTES_INTCTXT);
-
-IOTimeTypeStampS(IOINTES_INTFLTR);
-    IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
-                        (unsigned int) filterAction, (unsigned int) owner);
+    bool       filterRes;
+       bool    trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+       
+       if (trace)
+               IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+                                                                (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+    
+    // Call the filter.
     filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
-
+       
+       if (trace)
+               IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+                                                          (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+       
     if (filterRes)
         signalInterrupt();
-
-IOTimeTypeStampE(IOINTES_INTCTXT);
 }
 
 void IOFilterInterruptEventSource::disableInterruptOccurred
     (void */*refcon*/, IOService *prov, int source)
 {
-    bool filterRes;
-
-IOTimeTypeStampS(IOINTES_INTCTXT);
-
-IOTimeTypeStampS(IOINTES_INTFLTR);
-    IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
-                        (unsigned int) filterAction, (unsigned int) owner);
+    bool       filterRes;
+       bool    trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+       
+       if (trace)
+               IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+                                                                (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+    
+    // Call the filter.
     filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
-
+       
+       if (trace)
+               IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+                                                          (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+       
     if (filterRes) {
         prov->disableInterrupt(source);        /* disable the interrupt */
-
         signalInterrupt();
     }
-IOTimeTypeStampE(IOINTES_INTCTXT);
 }