1/*
2 *
3 * @APPLE_LICENSE_HEADER_START@
4 *
5 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
6 *
7 * This file contains Original Code and/or Modifications of Original Code
8 * as defined in and that are subject to the Apple Public Source License
9 * Version 2.0 (the 'License'). You may not use this file except in
10 * compliance with the License. Please obtain a copy of the License at
11 * http://www.opensource.apple.com/apsl/ and read it before using this
12 * file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
19 * Please see the License for the specific language governing rights and
20 * limitations under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24
25#ifndef _IOKIT_HID_IOHIDEVENTSYSTEM_H
26#define _IOKIT_HID_IOHIDEVENTSYSTEM_H
27
28#include <IOKit/IOMessage.h>
29#include <IOKit/IOWorkLoop.h>
30#include <IOKit/IOCommandGate.h>
31#include <IOKit/IOTimerEventSource.h>
32#include "IOHIDEventService.h"
33#include "IOHIDEventTypes.h"
34
35class IOHIDEventSystem: public IOService
36{
37    OSDeclareAbstractStructors( IOHIDEventSystem )
38
39    IOWorkLoop *		_workLoop;
40    IOCommandGate *     _commandGate;
41
42    IONotifier *		_publishNotify;
43    IONotifier *		_terminateNotify;
44    OSArray *           _eventServiceInfoArray;
45
46    bool                _eventsOpen;
47
48    struct ExpansionData {
49    };
50    /*! @var reserved
51        Reserved for future use.  (Internal use only)  */
52    ExpansionData *         _reserved;
53
54    bool notificationHandler(
55                                void *                          refCon,
56                                IOService *                     service );
57
58    void handleHIDEvent(
59                                void *                          refCon,
60                                AbsoluteTime                    timeStamp,
61                                UInt32                          eventCount,
62                                IOHIDEvent *                    events,
63                                IOOptionBits                    options);
64
65
66    // Gated Methods
67    void handleServicePublicationGated(IOService * service);
68
69    void handleServiceTerminationGated(IOService * service);
70
71    void handleHIDEventGated(void * args);
72
73    void registerEventSource(IOHIDEventService * service);
74
75public:
76    virtual bool      init(OSDictionary * properties = 0);
77    virtual bool      start(IOService * provider);
78    virtual void      free();
79    virtual IOReturn  message(UInt32 type, IOService * provider, void * argument);
80    virtual IOReturn  setProperties( OSObject * properties );
81
82};
83
84#endif /* _IOKIT_HID_IOHIDEVENTSYSTEM_H */