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Annotation of XNU/iokit/IOKit/firewire/IOFWIsochPort.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:  * IOFWIsochPort is an abstract object that represents hardware on the bus
        !            26:  * (locally or remotely) that sends or receives isochronous packets.
        !            27:  * Local ports are implemented by the local device driver,
        !            28:  * Remote ports are implemented by the driver for the remote device.
        !            29:  *
        !            30:  * HISTORY
        !            31:  *
        !            32:  */
        !            33: 
        !            34: 
        !            35: #ifndef _IOKIT_IOFWISOCHPORT_H
        !            36: #define _IOKIT_IOFWISOCHPORT_H
        !            37: 
        !            38: #include <libkern/c++/OSObject.h>
        !            39: #include <IOKit/firewire/IOFWRegs.h>
        !            40: 
        !            41: class IOFWIsochPort : public OSObject
        !            42: {
        !            43:     OSDeclareAbstractStructors(IOFWIsochPort)
        !            44: 
        !            45: public:
        !            46:        // Return maximum speed and channels supported
        !            47:        // (bit n set = chan n supported)
        !            48:     virtual IOReturn getSupported(IOFWSpeed &maxSpeed, UInt64 &chanSupported) = 0;
        !            49: 
        !            50:        // Allocate hardware resources for port
        !            51:     virtual IOReturn allocatePort(IOFWSpeed speed, UInt32 chan) = 0;
        !            52:     virtual IOReturn releasePort() = 0;                // Free hardware resources
        !            53:     virtual IOReturn start() = 0;              // Start port processing packets
        !            54:     virtual IOReturn stop() = 0;               // Stop processing packets
        !            55: };
        !            56: 
        !            57: #endif /* ! _IOKIT_IOFWISOCHPORT_H */
        !            58: 

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