xnu-6153.11.26.tar.gz

[apple/xnu.git] / iokit / Kernel / IOPMPowerStateQueue.h

diff --git a/iokit/Kernel/IOPMPowerStateQueue.h b/iokit/Kernel/IOPMPowerStateQueue.h
index 3b6cb9648bb9fb3cb25abae54435e9c3829fe28f..1e737ed17dc462899559b1694da96b4bf4995d1e 100644 (file)
--- a/iokit/Kernel/IOPMPowerStateQueue.h
+++ b/iokit/Kernel/IOPMPowerStateQueue.h
@@ -1,15 +1,20 @@
 /*
- * Copyright (c) 2001-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2001-2019 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
- * @APPLE_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
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
@@ -17,54 +22,42 @@
  * 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_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
- 
+
 #ifndef _IOPMPOWERSTATEQUEUE_H_
 #define _IOPMPOWERSTATEQUEUE_H_
- 
-#include <IOKit/IOWorkLoop.h>
+
 #include <IOKit/IOEventSource.h>
-#include <IOKit/IOService.h>
-extern "C" {
-    #include <kern/queue.h>
-}
+#include <IOKit/IOLocks.h>
+#include <kern/queue.h>
+
+typedef void (*IOPMPowerStateQueueAction)(OSObject *, uint32_t event, void *, uint64_t);
 
 class IOPMPowerStateQueue : public IOEventSource
- {
-    OSDeclareDefaultStructors(IOPMPowerStateQueue);
+{
+       OSDeclareDefaultStructors(IOPMPowerStateQueue);
 
 private:
-    enum {
-        kUnIdle = 0
-    };
-
-    // Queue of requested states
-    struct PowerChangeEntry 
-    {
-        void                    *next;
-        UInt16                  actionType;
-        UInt16                  state;
-        IOService               *target;
-    };
+       struct PowerEventEntry {
+               queue_chain_t   chain;
+               uint32_t        eventType;
+               void *          arg0;
+               uint64_t        arg1;
+       };
 
-    void                        *changes;
+       queue_head_t    queueHead;
+       IOLock *        queueLock;
 
 protected:
-    virtual bool checkForWork(void);
+       virtual bool checkForWork( void ) APPLE_KEXT_OVERRIDE;
+       virtual bool init( OSObject * owner, Action action ) APPLE_KEXT_OVERRIDE;
 
 public:
-    //typedef void (*Action)(IOService *target, unsigned long state);
+       static IOPMPowerStateQueue * PMPowerStateQueue( OSObject * owner, Action action );
 
-    virtual bool init(OSObject *owner, Action action = 0);
+       bool submitPowerEvent( uint32_t eventType, void * arg0 = NULL, uint64_t arg1 = 0 );
+};
 
-    // static initialiser
-    static IOPMPowerStateQueue *PMPowerStateQueue(OSObject *owner);
-         
-    // Enqueues an activityTickle request to be executed on the workloop
-    virtual bool unIdleOccurred(IOService *, unsigned long);
- };
- 
- #endif /* _IOPMPOWERSTATEQUEUE_H_ */
- 
+#endif /* _IOPMPOWERSTATEQUEUE_H_ */