1 /* 2 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #ifndef _IOKIT_IONVRAMCONTROLLER_H 30 #define _IOKIT_IONVRAMCONTROLLER_H 31 32 #include <IOKit/IOService.h> 33 34 class IONVRAMController : public IOService 35 { 36 OSDeclareAbstractStructors(IONVRAMController); 37 38 public: 39 virtual void registerService(IOOptionBits options = 0) APPLE_KEXT_OVERRIDE; 40 41 virtual void sync(void); 42 virtual IOReturn select(uint32_t bank); 43 virtual IOReturn eraseBank(void); 44 45 virtual IOReturn read(IOByteCount offset, UInt8 *buffer, 46 IOByteCount length) = 0; 47 virtual IOReturn write(IOByteCount offset, UInt8 *buffer, 48 IOByteCount length) = 0; 49 }; 50 51 #endif /* !_IOKIT_IONVRAMCONTROLLER_H */ 52