/* * Copyright (c) 2001 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * * IOFireWirePCRSpace.h * * Class to multiplex access to the FCP request address. */ #ifndef _IOKIT_IOFIREWIREAVCREQUESTSPACE_H #define _IOKIT_IOFIREWIREAVCREQUESTSPACE_H #include <IOKit/firewire/IOFWAddressSpace.h> class IOFireWireBus; /*! @class IOFireWireAVCRequestSpace @abstract object to multiplex users of the FCP request register */ class IOFireWireAVCRequestSpace : public IOFWPseudoAddressSpace { OSDeclareDefaultStructors(IOFireWireAVCRequestSpace) protected: UInt8 fUnitAddr; /*! @struct ExpansionData @discussion This structure will be used to expand the capablilties of the class in the future. */ struct ExpansionData { }; /*! @var reserved Reserved for future use. (Internal use only) */ ExpansionData *reserved; // Override to check cts, subunit type and id virtual UInt32 doWrite(UInt16 nodeID, IOFWSpeed &speed, FWAddress addr, UInt32 len, const void *buf, IOFWRequestRefCon refcon); public: /*! @function init @abstract initializes the IOFireWireAVCRequestSpace object @param bus FireWire bus. @param subUnitType AVC subunit type to receive requests for. @param subUnitID AVC subunit ID to receive requests for. @param refcon arbitrary value passed back as first argument of writer. @param writer callback function when a write to the FCP request register matches the specified AVC subunit. */ virtual bool init(IOFireWireBus * bus, UInt32 subUnitType, UInt32 subUnitID, FWWriteCallback writer, void * refcon); /*! @function withSubUnit @abstract creates a IOFireWireAVCRequestSpace object @param bus FireWire bus. @param subUnitType AVC subunit type to receive requests for. @param subUnitID AVC subunit ID to receive requests for. @param writer callback function when a write to the FCP request register matches the specified AVC subunit. @param refcon arbitrary value passed back as first argument of writer. */ static IOFireWireAVCRequestSpace * withSubUnit(IOFireWireBus * bus, UInt32 subUnitType, UInt32 subUnitID, FWWriteCallback writer, void * refcon); private: OSMetaClassDeclareReservedUnused(IOFireWireAVCRequestSpace, 0); OSMetaClassDeclareReservedUnused(IOFireWireAVCRequestSpace, 1); OSMetaClassDeclareReservedUnused(IOFireWireAVCRequestSpace, 2); OSMetaClassDeclareReservedUnused(IOFireWireAVCRequestSpace, 3); }; #endif /* _IOKIT_IOFIREWIREAVCREQUESTSPACE_H */