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cleanup files after merge Nub into Controller
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RehabMan
147
VoodooPS2Controller/AppleACPIPS2Nub.h
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147
VoodooPS2Controller/AppleACPIPS2Nub.h
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/*
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* Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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/*! @file AppleACPIPS2Nub.h
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@abstract AppleACPIPS2Nub class definition
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@discussion
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Implements the ACPI PS/2 nub for ApplePS2Controller.kext.
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Reverse-engineered from the Darwin 8 binary ACPI kext.
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Copyright 2007 David Elliott
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*/
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#ifndef __AppleACPIPS2Nub__
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#define __AppleACPIPS2Nub__
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#include <IOKit/IOService.h>
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#include <IOKit/IOPlatformExpert.h>
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#include <IOKit/acpi/IOACPITypes.h>
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class IOPlatformExpert;
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/*! @class AppleACPIPS2Nub
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@abstract Provides a nub that ApplePS2Controller can attach to
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@discussion
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The ApplePS2Controller driver is written to the nub provided by the
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AppleI386PlatformExpert class which exposes the controller as it is found
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on a legacy x86 machine.
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To make that kext work on an ACPI machine, a nub providing the same
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service must exist. Previous releases of the official ACPI PE included
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this class. Newer release do not. This implementation is intended
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to be fully ABI compatible with the one Apple used to provide.
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*/
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class AppleACPIPS2Nub: public IOPlatformDevice
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{
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OSDeclareDefaultStructors(AppleACPIPS2Nub);
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private:
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/*! @field m_mouseProvider
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@abstract Our second provider which provides the mouse nub
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@discussion
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We attach to the keyboard nub but we need to be attached to both the
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keyboard and mouse nub in order to make ourselves a proper nub for
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the ApplePS2Controller.kext driver.
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*/
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IOService *m_mouseProvider;
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/*! @field m_interruptControllers
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@abstract Our array of interrupt controllers
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*/
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OSArray *m_interruptControllers;
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/*! @field m_interruptSpecifiers
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@abstract Our array of interrupt specifiers
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*/
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OSArray *m_interruptSpecifiers;
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enum LegacyInterrupts
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{ LEGACY_KEYBOARD_IRQ = 1
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, LEGACY_MOUSE_IRQ = 12
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};
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static inline bool convertInterruptNumber(int &source)
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{
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if(source == LEGACY_KEYBOARD_IRQ)
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source = 0;
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else if(source == LEGACY_MOUSE_IRQ)
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source = 1;
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else
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return false;
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return true;
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}
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public:
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virtual bool start(IOService *provider);
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/*! @method findMouseDevice
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@abstract Locates the mouse nub in the IORegistry
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*/
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virtual IOService *findMouseDevice();
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/*! @method mergeInterruptProperties
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@abstract Merges the interrupt specifiers and controllers from our two providers
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@param pnpProvider The provider nub
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@discussion
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This is called once for each of our providers. The interrupt controller and interrupt
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specifier objects from the provider's arrays are appended to our arrays.
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*/
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virtual void mergeInterruptProperties(IOService *pnpProvider, long source);
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/*! @method registerInterrupt
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@abstract Overriden to translate the legacy interrupt numbers to ours
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@discussion
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The legacy interrupts are 1 for the keyboard and 12 (0xc) for the mouse.
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However, the base class code works off of the controller and specifier
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objects in our IOInterruptControllers and IOInterruptSpecifiers keys.
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Therefore, we must translate the keyboard interrupt (1) to the index
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into our array (0) and the mouse interrupt (12) to the index into
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our array (1).
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This has to be done for every *Interrupt* method
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*/
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virtual IOReturn registerInterrupt(int source, OSObject *target,
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IOInterruptAction handler,
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void *refCon = 0);
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virtual IOReturn unregisterInterrupt(int source);
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virtual IOReturn getInterruptType(int source, int *interruptType);
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virtual IOReturn enableInterrupt(int source);
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virtual IOReturn disableInterrupt(int source);
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/*! @method compareName
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@abstract Overridden to call the IOPlatformExpert compareNubName method
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@discussion
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I have no idea why this is done, but the Apple code did it, so this
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code does too.
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*/
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virtual bool compareName( OSString * name, OSString ** matched = 0 ) const;
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/*! @method getResources
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@abstract Overridden to call the IOPlatformExpert getNubResources method
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@discussion
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I have no idea why this is done, but the Apple code did it, so this
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code does too.
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*/
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virtual IOReturn getResources( void );
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};
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#endif
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