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Annotation of XNU/iokit/Drivers/platform/drvAppleIntelClassicPIC/AppleIntelClassicPIC.h, revision 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_APPLEINTELCLASSICPIC_H
        !            30: #define _IOKIT_APPLEINTELCLASSICPIC_H
        !            31: 
        !            32: #include <IOKit/IOInterrupts.h>
        !            33: #include <IOKit/IOInterruptController.h>
        !            34: 
        !            35: #define kClockIRQ      0       /* FIXME for SMP systems. */
        !            36: 
        !            37: #define        kPIC1BasePort   0x20
        !            38: #define        kPIC2BasePort   0xa0
        !            39: 
        !            40: #define kPICCmdPortOffset      0
        !            41: #define        kPICDataPortOffset      1
        !            42: 
        !            43: #define kEOICommand    0x20
        !            44: 
        !            45: #define kPICSlaveIRQID 0x04    /* Slave ID for second PIC on first pic */
        !            46: #define        kPICSlaveID     2       /* Slave ID for second PIC */
        !            47: 
        !            48: #define        kNumVectors     (16)
        !            49: 
        !            50: typedef void (*IOKitInterruptHookType)(void *, int, int);
        !            51: 
        !            52: class AppleIntelClassicPIC : public IOInterruptController
        !            53: {
        !            54:   OSDeclareDefaultStructors(AppleIntelClassicPIC);
        !            55:   
        !            56: private:
        !            57:   IOService              *parentNub;
        !            58: 
        !            59:   volatile unsigned short      maskInterrupts;         /* Which interrupts are masked out */
        !            60:   IOKitInterruptHookType getRegisterInterruptHookAddress(void);
        !            61: 
        !            62: public:
        !            63:   virtual bool start(IOService *provider);
        !            64: 
        !            65:   virtual IOReturn getInterruptType(IOService *nub, int source,
        !            66:                                    int *interruptType);
        !            67:   
        !            68:   virtual IOInterruptAction getInterruptHandlerAddress(void);
        !            69:   virtual IOReturn handleInterrupt(void *refCon,
        !            70:                                   IOService *nub, int source);
        !            71:   
        !            72:   virtual bool vectorCanBeShared(long vectorNumber, IOInterruptVector *vector);
        !            73:   virtual void initVector(long vectorNumber, IOInterruptVector *vector);
        !            74:   virtual void disableVectorHard(long vectorNumber, IOInterruptVector *vector);
        !            75:   virtual void enableVector(long vectorNumber, IOInterruptVector *vector);
        !            76: 
        !            77:   void         registerInterruptHook(void *func, int source, int isClock);
        !            78: };
        !            79: 
        !            80: 
        !            81: #endif /* ! _IOKIT_APPLEINTELCLASSICPIC_H */

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