/*
 * Copyright (c) 2002 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@
 */
/*
 * Copyright (c) 2002 Apple Computer, Inc.  All rights reserved.
 *
 *  DRI: Dave Radcliffe
 *
 */


#ifndef _IOKIT_APPLE_UNIN_H
#define _IOKIT_APPLE_UNIN_H

#include <IOKit/IOService.h>
#include <IOKit/platform/ApplePlatformExpert.h>
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/pci/IOPCIDevice.h>

#include "IOPlatformFunction.h"

// Uni-North Register Information

#define kUniNVersion               (0x0000)
#define kUniNVersion107            (0x0003)
#define kUniNVersion10A            (0x0007)
#define kUniNVersion150            (0x0011)
#define kUniNVersion200            (0x0024)
#define kUniNVersionPangea         (0x00C0)
#define kUniNVersionIntrepid       (0x00D2)

#define kUniNClockControl          (0x0020)
#define kUniNFirewireClockEnable   (1 << 2)
#define kUniNEthernetClockEnable   (1 << 1)
#define kUniNPCI2ClockEnable       (1 << 0)

#define kUniNPowerMngmnt           (0x0030)
#define kUniNNormal                (0x00)
#define kUniNIdle2                 (0x01)
#define kUniNSleep                 (0x02)

#define kUniNArbCtrl               (0x0040)
#define kUniNArbCtrlQAckDelayShift (15)
#define kUniNArbCtrlQAckDelayMask  (0x0e1f8000)
#define kUniNArbCtrlQAckDelay      (0x30)
#define kUniNArbCtrlQAckDelay105   (0x00)

#define kUniNHWInitState           (0x0070)
#define kUniNHWInitStateSleeping   (0x01)
#define kUniNHWInitStateRunning    (0x02)

#define kUniNMPCIMemTimeout			(0x2160)
#define kUniNMPCIMemTimeoutMask		(0xFF000000)
#define kUniNMPCIMemGrantTime		(0x0 << 28)

#define kUniNUATAReset				(0x02000000)
#define kUniNUATAEnable				(0x01000000)

// Uni-N 1.5 Performance Monitoring Registers
#define kUniNMMCR					(0x0F00)
#define kUniNMCMDR					(0x0F10)
#define kUniNMPMC1					(0x0F20)
#define kUniNMPMC2					(0x0F30)
#define kUniNMPMC3					(0x0F40)
#define kUniNMPMC4					(0x0F50)	

#define kIOPCICacheLineSize 	"IOPCICacheLineSize"
#define kIOPCITimerLatency		"IOPCITimerLatency"
#define kAAPLSuspendablePorts	"AAPL,SuspendablePorts"

#define kUniNSetPowerState		"UniNSetPowerState"

class AppleUniN: public ApplePlatformExpert
{
    OSDeclareDefaultStructors(AppleUniN)

public:

    virtual  bool start( IOService * nub );
    virtual void free();
    virtual IOReturn callPlatformFunction(const OSSymbol *functionName, bool waitForFunction, 
		void *param1, void *param2, void *param3, void *param4);
    virtual IOReturn callPlatformFunction(const char *functionName, bool waitForFunction, 
		void *param1, void *param2, void *param3, void *param4);

	virtual IOReturn setupUATAforSleep ();
	virtual void enableUniNEthernetClock(bool enable, IOService *nub);
	virtual void enableUniNFireWireClock(bool enable, IOService *nub);
	virtual IOReturn accessUniN15PerformanceRegister(bool write, long regNumber, UInt32 *data);

private:
    UInt32					*uniNBaseAddress;
    UInt32					uniNVersion;
	bool					uataBusWasReset;
    IOService				*provider;
	// this is to ensure mutual exclusive access to the Uni-N registers:
	IOSimpleLock 			*mutex;
	OSArray 				*platformFuncArray;
    IOMemoryMap				*uATABaseAddressMap;
	volatile UInt32			*uATABaseAddress;
	bool					hostIsMobile;

    virtual UInt32 readUniNReg(UInt32 offset);
    virtual void writeUniNReg(UInt32 offset, UInt32 data);
	virtual UInt32 safeReadRegUInt32(UInt32 offset);
	virtual void safeWriteRegUInt32(UInt32 offset, UInt32 mask, UInt32 data);
	virtual void configureUniNPCIDevice (IOService *nub);
	virtual void uniNSetPowerState (UInt32 state);

	virtual bool performFunction(const IOPlatformFunction *func, void *param1 = 0,
			void *param2 = 0, void *param3 = 0, void *param4 = 0);
	virtual IOPCIDevice* findNubForPHandle( UInt32 pHandleValue );

};

#endif /*  _IOKIT_APPLE_UNIN_H */