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Annotation of XNU/iokit/Drivers/platform/drvAppleGrandCentral/GrandCentral.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /*
                     23:  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
                     24:  *
                     25:  *  DRI: Josh de Cesare
                     26:  *
                     27:  */
                     28: 
                     29: #ifndef _IOKIT_GRANDCENTRAL_H
                     30: #define _IOKIT_GRANDCENTRAL_H
                     31: 
                     32: #include <IOKit/platform/AppleMacIO.h>
                     33: 
                     34: #include <IOKit/IOInterrupts.h>
                     35: #include <IOKit/IOInterruptController.h>
                     36: 
                     37: #define kNumVectors      (32)
                     38: 
                     39: #define kTypeLevelMask (0x3FF00000)
                     40: 
                     41: #define kEventsOffset    (0x00020)
                     42: #define kMaskOffset      (0x00024)
                     43: #define kClearOffset     (0x00028)
                     44: #define kLevelsOffset    (0x0002C)
                     45: 
                     46: 
                     47: class GrandCentralInterruptController;
                     48: 
                     49: class GrandCentral : public AppleMacIO
                     50: {
                     51:   OSDeclareDefaultStructors(GrandCentral);
                     52:   
                     53: private:
                     54:   IOLogicalAddress                 grandCentralBaseAddress;
                     55:   GrandCentralInterruptController  *interruptController;
                     56:   
                     57: public:
                     58:   virtual bool start(IOService *provider);
                     59: };
                     60: 
                     61: 
                     62: class GrandCentralInterruptController : public IOInterruptController
                     63: {
                     64:   OSDeclareDefaultStructors(GrandCentralInterruptController);
                     65:   
                     66: private:
                     67:   IOService         *parentNub;
                     68:   IOLock            *taskLock;
                     69:   unsigned long     pendingEvents;
                     70:   unsigned long     eventsReg;
                     71:   unsigned long     maskReg;
                     72:   unsigned long     clearReg;
                     73:   unsigned long     levelsReg;
                     74:   
                     75: public:
                     76:   virtual IOReturn initInterruptController(IOService *provider, IOLogicalAddress interruptControllerBase);
                     77:   
                     78:   virtual IOInterruptAction getInterruptHandlerAddress(void);
                     79:   virtual IOReturn handleInterrupt(void *refCon, IOService *nub, int source);
                     80:   
                     81:   virtual bool vectorCanBeShared(long vectorNumber, IOInterruptVector *vector);
                     82:   virtual int  getVectorType(long vectorNumber, IOInterruptVector *vector);
                     83:   virtual void disableVectorHard(long vectorNumber, IOInterruptVector *vector);
                     84:   virtual void enableVector(long vectorNumber, IOInterruptVector *vector);
                     85:   virtual void causeVector(long vectorNumber, IOInterruptVector *vector);
                     86: };
                     87: 
                     88: 
                     89: #endif /* ! _IOKIT_GRANDCENTRAL_H */

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