/* * Copyright (c) 1998-2001 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@ */ #include <IOKit/firewire/IOFireWireUnit.h> #include <IOKit/firewire/IOFireWireBus.h> #include <IOKit/firewire/IOFWAddressSpace.h> #include <IOKit/firewire/IOFireWireDevice.h> #include <IOKit/firewire/IOFireWireBus.h> #include "IOFWAsyncStreamReceivePort.h" /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ OSDefineMetaClassAndStructors(IOFWAsyncStreamReceivePort, IOFWLocalIsochPort) bool IOFWAsyncStreamReceivePort::init(IODCLProgram *program, IOFireWireController *control, UInt32 channel) { if(!IOFWLocalIsochPort::init(program, control)) return false; fChannel = channel ; return true; } IOReturn IOFWAsyncStreamReceivePort::getSupported(IOFWSpeed &maxSpeed, UInt64 &chanSupported) { IOFWLocalIsochPort::getSupported( maxSpeed, chanSupported ) ; if ((chanSupported & ((UInt64)1) << (63 - fChannel)) == 0) // make sure desired channel is supported by hardware return kIOReturnNoChannels ; chanSupported = ((UInt64)1) << (63 - fChannel) ; // we want channel 31 (standard for async streaming packets) return kIOReturnSuccess; }