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Annotation of XNU/iokit/Drivers/platform/drvAppleNVRAM/AppleNVRAM.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:  * 16 Feb 1999 suurballe  Created.
        !            24:  */
        !            25: 
        !            26: #include <IOKit/nvram/IONVRAMController.h>
        !            27: 
        !            28: enum {
        !            29:         NVRAM_IOMEM,
        !            30:         NVRAM_PORT,
        !            31:         NVRAM_PMU,
        !            32:         NVRAM_NONE
        !            33: };
        !            34: 
        !            35: class AppleNVRAM : public IONVRAMController
        !            36: {
        !            37:     OSDeclareDefaultStructors(AppleNVRAM)
        !            38: 
        !            39: private:
        !            40: 
        !            41:     int nvram_kind;
        !            42:     volatile unsigned char *nvram_data;
        !            43:     volatile unsigned char *nvram_port;
        !            44: 
        !            45: public:
        !            46: 
        !            47:     bool start ( IOService * );
        !            48:     IOReturn openNVRAM ( void );
        !            49:     IOReturn readNVRAM ( UInt32 Offset, IOByteCount * Length, UInt8 * Buffer );
        !            50:     IOReturn writeNVRAM ( UInt32 Offset, IOByteCount * Length, UInt8 * Buffer );
        !            51: };

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